阅读说明：本技术 烘焙装置以及该烘焙装置的控制方法 (Baking device and control method thereof ) 是由 禹钟旭 于 2019-10-08 设计创作，主要内容包括：本发明涉及一种烘焙装置以及烘焙装置的控制方法,更加详细地涉及一种在烘焙腔室搅拌对象物并烘焙的烘焙装置以及烘焙装置的控制方法。根据本发明的烘焙装置,作为加热对象物的烘焙装置,包括：烘焙腔室部,包括对象物在内部被搅拌并沿上下方向延伸形成的圆筒形的烘焙腔室和为了搅拌收纳于所述烘焙腔室的所述对象物而旋转的旋转搅拌部,所述旋转搅拌部以沿垂直的方向形成的搅拌轴为中心旋转；以及热源部,对所述烘焙腔室部提供热,其中,所述热源部包括：第一热源部,向所述烘焙腔室提供热风,从而向所述烘焙腔室内部提供对流热；第二热源部,接触于所述烘焙腔室的表面,并以传导方式向所述烘焙腔室提供传导热；以及第三热源部,向所述烘焙腔室内部提供辐射热。(The present invention relates to a roasting apparatus and a method for controlling the roasting apparatus, and more particularly, to a roasting apparatus and a method for controlling the roasting apparatus, in which an object is stirred and roasted in a roasting chamber. According to the present invention, a roasting apparatus for heating an object includes: a baking chamber part including a cylindrical baking chamber in which an object is stirred and which extends in a vertical direction, and a rotary stirring part which rotates to stir the object accommodated in the baking chamber, the rotary stirring part rotating around a stirring shaft formed in a vertical direction; and a heat source part that supplies heat to the roasting chamber part, wherein the heat source part includes: a first heat source part supplying hot wind to the roasting chamber to supply convection heat to the inside of the roasting chamber; a second heat source part contacting a surface of the roasting chamber and providing conductive heat to the roasting chamber in a conductive manner; and a third heat source part supplying radiant heat to the inside of the roasting chamber.)

1. A baking device for heating an object, comprising:

a baking chamber part including a cylindrical baking chamber in which an object is stirred and which extends in a vertical direction, and a rotary stirring part which rotates to stir the object accommodated in the baking chamber, the rotary stirring part rotating around a stirring shaft formed in a vertical direction; and

a heat source part supplying heat to the roasting chamber part,

wherein the heat source part includes:

a first heat source part supplying hot wind to the roasting chamber to supply convection heat to the inside of the roasting chamber;

a second heat source part contacting a surface of the roasting chamber and providing conductive heat to the roasting chamber in a conductive manner; and

a third heat source unit for supplying radiant heat to the interior of the roasting chamber.

2. The torrefaction apparatus according to claim 1,

the second heat source unit includes a second heat source unit main body surrounding an outer circumferential surface of the baking chamber in a state of being in contact with the outer circumferential surface, and the second heat source unit main body is formed of a ceramic material.

3. The torrefaction apparatus according to claim 2,

at least one baking chamber side through hole communicating with the outside is formed in the baking chamber, and a second heat source part main body side through hole formed at a position corresponding to the baking chamber side through hole is formed in the second heat source part main body.

4. The torrefaction apparatus according to claim 3, further comprising:

a conduction temperature measuring unit for measuring a temperature of the second heat source portion,

wherein a conduction temperature measuring probe of the conduction temperature measuring unit is simultaneously in contact with an inner face of the third heat source part main body and the outer circumferential face of the baking chamber in a state of being arranged between the second heat source part and the baking chamber,

the conduction temperature measuring probe of the conduction temperature measuring unit is disposed at a position farthest from the baking chamber side through hole and the second heat source main body side through hole.

5. The torrefaction apparatus according to claim 1, further comprising:

a radiation temperature measuring unit for measuring a temperature of an object accommodated in an inner space of the baking chamber,

wherein the radiation temperature measuring unit is disposed at an upper unit disposed at an upper side of the roasting chamber toward an inner space side of the roasting chamber.

6. The torrefaction apparatus according to claim 5,

the upper unit includes an upper unit main body formed in a circular shape, a measuring hole penetrating in a vertical direction is formed in the upper unit main body,

wherein the radiation temperature measuring unit includes:

a sensing part for measuring a temperature; and

a filtering part disposed in front of the sensing part and passing light of a preset wavelength band,

wherein the sensing portion and the filtering portion are aligned with the measurement aperture.

7. The torrefaction apparatus according to claim 6,

the radiation temperature measuring unit includes:

a first bracket fixed to the upper unit body and having a first through hole formed therein;

a second holder having one side fixed in contact with the first holder and formed with a second through hole into which the sensing part is inserted and aligned with the first through hole; and

a substrate having the sensing part mounted thereon and fixed to the other side of the second bracket,

wherein the first through hole and the second through hole are aligned with the measuring hole,

the filter portion is provided between the first bracket and the second bracket.

8. The torrefaction apparatus according to claim 7,

the first bracket includes:

a first bracket main body forming an outer shape of the first bracket and having the first through hole arranged at a center thereof; and

a pair of protruding parts formed to protrude upward at one side of the first bracket body,

wherein a concave space is formed between the protrusions,

the second bracket includes:

a second holder main body forming an outer shape of the second holder and centrally disposing the second through-hole, an

An insertion part formed at one side of the second bracket body and inserted into the recess space of the first bracket,

wherein the filter portion is closely attached between the recess space of the first bracket and the insertion portion of the second bracket in a state of being aligned with the first through hole disposed in the recess space.

9. The torrefaction apparatus according to claim 8,

an elastic member is disposed at least one of between the filter portion and the first bracket and between the filter portion and the second bracket.

10. The torrefaction apparatus according to claim 6,

a cylindrical guide portion formed to surround the measuring hole and protrude downward is formed on a lower surface of the upper unit,

the guide portion is aligned with the measuring hole.

11. The torrefaction apparatus according to claim 5,

the first heat source unit includes:

a flow tube through which air flows; and

a heating unit disposed at one side of the flow tube and heating the flowing air,

the third heat source portion includes a lamp unit that radiates radiant heat,

the upper unit is provided with:

a first heat source arrangement hole fixing the heating unit and flowing heated air to the inner space of the roasting chamber; and

a third heat source arrangement hole fixing the lamp unit to transfer the radiant heat emitted from the lamp unit to the inner space of the roasting chamber,

wherein the lamp unit and the third heat source arrangement hole are provided in a pair,

the first heat source disposition hole is disposed between the pair of the third heat source disposition holes.

12. The torrefaction apparatus according to claim 11,

the first heat source disposition hole is formed in a circular shape,

the third heat source disposition hole is formed in a rectangular shape.

13. The torrefaction apparatus according to claim 1,

during a preheating operation for raising a temperature of an inner space of the roasting chamber from a normal temperature to a preset temperature, the first heat source part, the second heat source part, and the third heat source part are sequentially activated as follows: the second heat source part provides conductive heat to the inner space of the roasting chamber after the first heat source part provides convective heat to the inner space of the roasting chamber first, and then the third heat source part provides radiant heat to the inner space of the roasting chamber.

14. A control method of a baking device comprises a baking chamber part, a cylindrical baking chamber and a rotary stirring part, wherein the cylindrical baking chamber is formed by stirring objects in the baking chamber part and extending along the vertical direction, the rotary stirring part rotates for stirring the objects accommodated in the baking chamber, and the rotary stirring part rotates by taking a stirring shaft formed along the vertical direction as the center; and a heat source part that supplies heat to the roasting chamber part, wherein the heat source part includes: a first heat source unit that supplies hot air to the roasting chamber and supplies convection heat to the inside of the roasting chamber; a second heat source part contacting a surface of the roasting chamber and providing conductive heat to the roasting chamber in a conductive manner; and a third heat source unit, a method for controlling a roasting device for supplying radiant heat to the interior of the roasting chamber, comprising the steps of:

a first heat source preheating operation in which the first heat source part supplies hot air to the inner space of the roasting chamber;

a second heat source preheating operation of providing conductive heat to the inner space of the roasting chamber by a second heat source part in the case where the measured first preheating temperature is the first reference temperature or more in the first heat source preheating operation step; and

a third heat source preheating operation of supplying radiant heat to the inner space of the roasting chamber in a case where the measured second preheating temperature is the second reference temperature or more in the second heat source preheating operation step.

15. The control method of the roasting apparatus of claim 14, further comprising at least one of the following steps:

a first heat source temperature maintaining operation in which the first heat source part supplies convection heat to maintain the first preheating temperature at a first reference temperature in a case where the measured first preheating temperature is equal to or higher than the first reference temperature;

a second heat source temperature maintaining operation in which the second heat source part provides conductive heat to maintain the second preheating temperature at a second reference temperature in a case where the measured second preheating temperature is a second reference temperature or more; and

a third heat source temperature maintaining operation in which the third heat source part supplies radiant heat to maintain the third preheating temperature at a third reference temperature in a case where the measured third preheating temperature is equal to or higher than the third reference temperature.

16. The controlling method of the roasting apparatus according to claim 15,

in the third heat source temperature maintaining operation step, in a case where a fourth preheating temperature, which is a measured temperature outside the baking chamber, rises to a fourth reference temperature, the preheating operation is ended.

17. The controlling method of the roasting apparatus according to claim 15,

the roasting apparatus further comprises:

a convection temperature measuring unit disposed on a flow path of the hot wind supplied to the baking chamber by the first heat source part, for measuring a convection temperature of the hot wind;

a conduction temperature measuring unit that a conduction temperature measuring probe is arranged between the second heat source portion and an outer circumferential surface of the baking chamber and measures a conduction temperature of the second heat source portion; and

a radiation temperature measuring unit for measuring a radiation temperature of an inner space of the roasting chamber,

wherein the convection temperature of the hot wind, the conduction temperature, the temperature of the object, and the internal temperature of the baking chamber are the first preheating temperature, the second preheating temperature, and the third preheating temperature, respectively.

18. The controlling method of the roasting apparatus according to claim 15,

measurement positions of the first preheating temperature, the second preheating temperature, and the third preheating temperature are different from each other.

Technical Field

The present invention relates to a roasting apparatus and a method for controlling the roasting apparatus, and more particularly, to a roasting apparatus and a method for controlling the roasting apparatus, in which an object is stirred and roasted in a roasting chamber.

Background

Recently, grain roasters or coffee roasters capable of simply automatically roasting grains such as coffee beans in a special coffee shop or at home are being introduced.

Such a coffee roaster automatically roasts coffee beans by setting a roasting operation mode using a temperature sensor and a microcomputer.

The existing commercial automatic coffee baking machine mainly adopts the following stirring mode: the drum is rotated forward and backward in the horizontal rotation drum, so that the coffee beans are uniformly stirred. (granted patent No. 342091, granted patent No. 369539, granted patent No. 463341, granted patent No. 8041061, granted patent No. 887985, granted patent No. 963695, published patent No. 2009-.

However, the conventional automatic coffee roasting machine has a problem that it takes a lot of time to warm up and cannot cope with various roasting environments by providing a method of heating the horizontal rotary drum by using only one heat source such as gas combustion.

Disclosure of Invention

Technical problem

In view of this, the present invention provides a roasting apparatus and a control method of the roasting apparatus, which can further improve productivity by reducing the roasting preheating operation time.

Further, the present invention provides a roasting apparatus and a method of controlling the roasting apparatus, which can measure the progress of roasting of an object more effectively and enable a user to roast the object as desired.

Technical scheme

According to one aspect of the present invention, a baking apparatus for heating an object includes: a baking chamber part including a cylindrical baking chamber in which an object is stirred and which extends in a vertical direction, and a rotary stirring part which rotates to stir the object accommodated in the baking chamber, the rotary stirring part rotating around a stirring shaft formed in a vertical direction; and a heat source part that supplies heat to the roasting chamber part, wherein the heat source part includes: a first heat source part supplying hot wind to the roasting chamber to supply convection heat to the inside of the roasting chamber; a second heat source part contacting a surface of the roasting chamber and providing conductive heat to the roasting chamber in a conductive manner; and a third heat source part supplying radiant heat to the inside of the roasting chamber.

The second heat source unit may include a second heat source unit main body surrounding an outer circumferential surface of the roasting chamber in a state of being in contact with the outer circumferential surface, and the second heat source unit main body may be formed of a ceramic material.

In addition, at least one baking chamber side through hole communicating with the outside may be formed in the baking chamber, and the second heat source part main body may be formed with a second heat source part main body side through hole formed at a position corresponding to the baking chamber side through hole.

The roasting apparatus may further include: a conduction temperature measuring unit for measuring a temperature of the second heat source portion,

wherein the conduction temperature measuring probe of the conduction temperature measuring unit may be simultaneously in contact with an inner face of the third heat source part main body and the outer circumferential face of the baking chamber in a state of being disposed between the second heat source part and the baking chamber, and the conduction temperature measuring probe of the conduction temperature measuring unit may be disposed at a position farthest from the baking chamber side through hole and the second heat source main body side through hole.

The roasting apparatus may further include: a radiation temperature measuring unit for measuring a temperature of the object received in the inner space of the baking chamber, wherein the radiation temperature measuring unit may be disposed at an upper unit disposed at an upper side of the baking chamber to face the inner space side of the baking chamber.

Further, the upper unit may include an upper unit body formed in a circular shape, and a measurement hole penetrating in a vertical direction is formed in the upper unit body, wherein the radiation temperature measurement unit may include: a sensing part for measuring a temperature; and a filter portion disposed in front of the sensing portion and passing light of a preset wavelength band, wherein the sensing portion and the filter portion may be aligned with the measurement hole.

And, the radiation temperature measuring unit may include: a first bracket fixed to the upper unit body and having a first through hole formed therein; a second holder having one side fixed in contact with the first holder and formed with a second through hole into which the sensing part is inserted and aligned with the first through hole; and a substrate to which the sensing part is mounted and fixed to the other side of the second holder, wherein the first and second through holes may be aligned with the measuring hole, and the filter part may be disposed between the first and second holders.

And, the first bracket may include: a first bracket main body forming an outer shape of the first bracket and having the first through hole arranged at a center thereof; and a pair of protrusions formed to protrude upward at one side of the first bracket main body, wherein a recess space may be formed between the protrusions, and the second bracket may include: and a second holder main body forming an outer shape of the second holder and having the second through hole disposed at a center thereof, and an insertion part formed at one side of the second holder main body and inserted into the depression space of the first holder, wherein the filter part may be closely attached between the depression space of the first holder and the insertion part of the second holder in a state of being aligned with the first through hole disposed in the depression space.

And, an elastic member may be disposed at least one of between the filter part and the first bracket and between the filter part and the second bracket.

A cylindrical guide portion may be formed on a lower surface of the upper unit to surround the measurement hole and protrude downward, and the guide portion may be aligned with the measurement hole.

And, the first heat source part may include: a flow tube through which air flows; and a heating unit disposed at one side of the flow tube and heating the flowing air, the third heat source part may include a lamp unit radiating radiant heat, and the upper unit may be formed with: a first heat source arrangement hole fixing the heating unit and flowing heated air to the inner space of the roasting chamber; and a third heat source arrangement hole fixing the lamp unit to transfer the radiant heat emitted from the lamp unit to the inner space of the roasting chamber, wherein the lamp unit and the third heat source arrangement hole may be provided in a pair, and the first heat source arrangement hole may be disposed between the pair of the third heat source arrangement holes.

Also, the first heat source arrangement hole may be formed in a circular shape, and the third heat source arrangement hole may be formed in a rectangular shape.

During a preheating operation for raising a temperature of an inner space of the roasting chamber from a normal temperature to a preset temperature, the first heat source part, the second heat source part, and the third heat source part may be sequentially activated in the following manner: the second heat source part provides conductive heat to the inner space of the roasting chamber after the first heat source part provides convective heat to the inner space of the roasting chamber first, and then the third heat source part provides radiant heat to the inner space of the roasting chamber.

According to the control method of the baking apparatus of the other side of the embodiment of the present invention, the baking chamber part includes a cylindrical baking chamber in which the object is stirred and which is formed to extend in the vertical direction, and a rotary stirring part which rotates to stir the object accommodated in the baking chamber, the rotary stirring part rotating around a stirring shaft formed in the vertical direction; and a heat source part that supplies heat to the roasting chamber part, wherein the heat source part includes: a first heat source part supplying hot wind to the roasting chamber to supply convection heat to the inside of the roasting chamber; a second heat source part contacting a surface of the roasting chamber and providing conductive heat to the roasting chamber in a conductive manner; and a third heat source unit, a method for controlling a roasting device for supplying radiant heat to the interior of the roasting chamber, comprising the steps of: a first heat source preheating operation in which the first heat source part supplies hot air to the inner space of the roasting chamber; a second heat source preheating operation of providing conductive heat to the inner space of the roasting chamber by a second heat source part in the case where the measured first preheating temperature is the first reference temperature or more in the first heat source preheating operation step; and a third heat source preheating operation of supplying radiant heat to the inner space of the roasting chamber in a case where the measured second preheating temperature is the second reference temperature or more in the second heat source preheating operation step.

Also, the control method of the roasting apparatus may further include at least one of the following steps: a first heat source temperature maintaining operation in which the first heat source part supplies convection heat to maintain the first preheating temperature at a first reference temperature in a case where the measured first preheating temperature is equal to or higher than the first reference temperature; a second heat source temperature maintaining operation in which the second heat source part provides conductive heat to maintain the second preheating temperature at a second reference temperature in a case where the measured second preheating temperature is a second reference temperature or more; and a third heat source temperature maintaining operation in which the third heat source part supplies radiant heat to maintain the third preheating temperature at a third reference temperature in a case where the measured third preheating temperature is equal to or higher than the third reference temperature.

In the third heat source temperature maintaining operation step, in a case where a fourth preheating temperature, which is a measured temperature outside the baking chamber, rises to a fourth reference temperature, the preheating operation may be ended.

Also, the roasting apparatus may further include: a convection temperature measuring unit disposed on a flow path of the hot wind supplied to the baking chamber by the first heat source part, for measuring a convection temperature of the hot wind; a conduction temperature measuring unit that a conduction temperature measuring probe is arranged between the second heat source portion and an outer circumferential surface of the baking chamber and measures a conduction temperature of the second heat source portion; and a radiation temperature measuring unit for measuring a radiation temperature of an inner space of the baking chamber, wherein the convection temperature of the hot wind, the conduction temperature, the temperature of the object, and the inner temperature of the baking chamber may be the first preheating temperature, the second preheating temperature, and the third preheating temperature, respectively.

The measurement positions of the first preheating temperature, the second preheating temperature, and the third preheating temperature may be different from each other.

Technical effects

According to the proposed embodiments, it is possible to provide a roasting apparatus and a control method of the roasting apparatus that reduce the roasting preheating operation time to further improve productivity.

Further, the progress of baking of the object can be measured more effectively, and the user can perform desired baking.

Drawings

Fig. 1 is a diagram illustrating a roasting apparatus according to an embodiment of the present invention.

Fig. 2 is a view showing a state in which the interior of the roasting apparatus of fig. 1 is projected.

Fig. 3 is a diagram showing a configuration of a roasting chamber part of the roasting apparatus of fig. 1.

Fig. 4 is a view showing a state in which the roasting chamber part of fig. 3 is viewed from above.

Fig. 5 is a view showing a state in which the third heat source portion is removed in the roasting chamber portion of fig. 3.

Fig. 6 is a view showing an upper unit of the roasting chamber part of fig. 3.

Fig. 7 is a view showing a cross section of the baking chamber part of fig. 3.

Fig. 8 is a diagram illustrating a state in which a first temperature sensing unit of the roasting apparatus of fig. 1 is disassembled.

Fig. 9 is a view illustrating a cross section of the first temperature sensing unit of fig. 8.

Fig. 10 is a diagram illustrating a control method of the roasting apparatus of fig. 1.

Best mode for carrying out the invention

The advantages and features of the present invention and the methods of accomplishing the same will become apparent by reference to the following detailed description of the embodiments taken in conjunction with the accompanying drawings. However, the present invention may be embodied in various forms other than those described in the embodiments below, and the embodiments are provided only for the purpose of making the disclosure of the present invention complete and informing a person having ordinary knowledge in the art to which the present invention pertains of the scope of the present invention, which is defined only by the scope of the claims.

Although the terms first, second, etc. are used to describe various components, it is obvious that these components are not limited to these terms. These terms are only used to distinguish one constituent element from another constituent element. Therefore, the first component mentioned below is within the technical idea of the present invention, and may be obviously the second component.

Like reference numerals refer to like elements throughout the specification.

Each feature of the various embodiments of the present invention can be combined or combined with each other partially or entirely, and technically enable various linkages and drives, and each embodiment can be implemented independently of each other as well as together in a relational relationship.

In addition, the potential effects that can be expected from the technical features of the present invention that are not specifically mentioned in the description of the present invention should be considered to be the same as those described in the present specification, and the present embodiment is provided to make the person having a tie knowledge in the art more complete understanding of the present invention, and the contents shown in the drawings may be exaggerated compared to the implementation administration of the actual invention, and the details of the configuration that is judged to unnecessarily obscure the gist of the present invention are omitted or briefly described.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a diagram illustrating a roasting apparatus according to an embodiment of the present invention, and fig. 2 is a diagram illustrating a state in which an internal configuration of the roasting apparatus of fig. 1 is projected. Fig. 3 is a diagram showing a configuration of a roasting chamber part of the roasting apparatus of fig. 1, and fig. 4 is a diagram showing a state of the roasting chamber part of fig. 3 as viewed from above. Fig. 5 is a view showing a state in which the third heat source unit is removed in the roasting chamber unit of fig. 3. Fig. 6 is a view showing an upper unit of the roasting chamber part of fig. 3, and fig. 7 is a view showing a cross section of the roasting chamber part of fig. 3. The following states are shown in fig. 2: in a state where the housing 190 forming the outer shape of the roasting apparatus 1 is provided, the housing 190 is made translucent so that the inner structure of the roasting apparatus 1 is projected outward.

Referring to fig. 1 to 7, a roasting apparatus 1 according to an embodiment of the present invention is an apparatus for roasting an object such as coffee beans as the object is heated, including: a baking chamber part 100 for accommodating and baking an object; an operation panel unit 200 that displays information such as the baking status of the object and receives an operation signal from the user; an object storage unit 400 for storing an object whose baking is completed in the baking chamber part 100; and heat source parts 310, 320, and 330 for supplying heat to the bake chamber part 100, wherein the bake chamber part 100 is surrounded by a case 190 made of a metal material.

In more detail, the roasting chamber part 100 includes: a roasting chamber 120 formed in a cylindrical shape, stirring the object in an internal space 121, and extending in a vertical direction; a rotary stirring unit 180 including a stirring wing unit 181 which rotates to stir the object stored in the roasting chamber 120; an upper unit 110 disposed at an upper side of the roasting chamber 120 and formed in a circular shape; a lower unit 130 disposed at a lower side of the roasting chamber 120 and formed in a circular shape; and a discharge unit 150 communicating with the internal space 121 of the roasting chamber 120 and selectively opened to discharge the object, which has been roasted in the internal space 121 of the roasting chamber 120, to the outside.

The roasting chamber 120 may be formed in a cylindrical shape extending in a vertical direction, and a fixing wing 122 for more smoothly stirring the object may be formed on an inner surface of the roasting chamber 120. The stationary wings 122 are formed to protrude from the inner surface of the roasting chamber 120, and the stationary wings 122 are formed in such a shape that the protruding height thereof gradually increases from the lower portion to the upper portion side of the roasting chamber 120.

The discharge unit 150 may include: a door portion (not shown) that is opened or closed by an operation signal of a control portion (not shown); and a lever (not shown) for allowing a user to forcibly open the door portion in an emergency regardless of a control signal of the control portion. The discharge unit 150 is formed to extend obliquely toward the object storage part 400, so that the baked object can be supplied to the object storage part 400 side when the gate part of the discharge unit 150 is opened.

The stirring wing unit 181 of the rotary stirring unit 180 rotates around a stirring shaft formed in a vertical direction. Therefore, the roasting chamber part 100 according to the present embodiment has an advantage in that the stirring wing unit 181 of the rotary stirring part 180 rotates the object around the stirring shaft formed in the vertical direction in a state of being formed to extend in the vertical direction, so that the object can be roasted more effectively and the roasting apparatus can be arranged more effectively.

The heat source units 310, 320, and 330 include: a first heat source part 310 supplying hot wind (Hotair flow) to the roasting chamber 120 to supply convection heat to the inside of the roasting chamber 120; a third heat source part 320 contacting a surface of the roasting chamber 120 and providing conductive heat to the roasting chamber 120 in a conductive manner; and a third heat source part 320 providing radiant heat to the inside of the roasting chamber 120.

The first heat source portion 310 includes: a flow tube 311 through which air flows; and a heating unit 312 disposed at one side of the flow tube 311, so that the flowing air is heated. The flow tubes 311 are connected to a blowing unit 313 for supplying air to supply air, and the heating unit 312 and one side of the flow tubes 311 are connected to the upper unit 110. Exemplarily, in the heating unit 312, a plurality of heating elements are arranged in a Mesh (Mesh) or Coil (Coil) form, and air is heated by the heating elements.

The second heat source unit 330 may include a second heat source unit main body surrounding an outer circumferential surface of the roasting chamber 120 in a state of being in contact with the outer circumferential surface, and the second heat source unit main body may be a band heater (band heater) formed of a ceramic material.

In addition, at least one baking chamber side through hole communicating with the outside is formed in the baking chamber 120, and a second heat source part main body side through hole formed at a position corresponding to the baking chamber side through hole is formed in the second heat source part main body.

Exemplarily, the roasting apparatus 1 further comprises: a sample taking unit 161 capable of taking a sample during baking; and a window unit 162 that visually confirms the baking process in the baking chamber 120, wherein the sample collection unit 161 and the window unit 162 are provided in the baking chamber side through hole and the second heat source main body side through hole. In addition, an air discharge port 163 communicating with the inner space of the roasting chamber 120 is formed at an upper side of the roasting chamber 120, and the second heat source part 330 is not disposed at the air discharge port 163 side. That is, the second heat source 330 may be provided only up to a predetermined height of the outer circumferential surface of the roasting chamber 120, and the height at which the second heat source 330 is provided may be set to a predetermined limit line of the object stored in the internal space 121 of the roasting chamber 120.

In the baking process, dust (outer skin, etc.) generated from the object is transferred to the dust collection unit 600 through the air discharge port 163, and the dust collection unit 600 discharges air to the outside and stores the dust in a dust storage (not shown) inside.

The third heat source part 320 may include a lamp unit 321 emitting radiant heat, and may be provided to the upper unit 110 to supply the radiant heat to the inner space 121 of the roasting chamber 120. Exemplarily, the lamp unit 321 may be a halogen lamp.

In addition, the upper unit 110 includes an upper unit body 111 formed in a circular shape, and the upper unit body 111 is formed with: a first heat source arrangement hole 113 to which the heating unit 312 of the first heat source part 310 is fixed to flow heated air to the inner space 121 of the roasting chamber 120; a third heat source arrangement hole 114 to which the lamp unit 321 of the third heat source part 320 is fixed so that the radiant heat emitted from the lamp unit 321 is transferred to the inner space 121 of the roasting chamber 120; and an object supply hole 112 connected to the hopper unit 170 of the roasting apparatus 1 so that the object is charged into the internal space 121 of the roasting chamber 120. A diffuser 118 having a diameter increasing downward is formed at the lower side of the upper unit 110, and the diffuser 118 guides the hot air supplied from the first heat source 310. The diffuser portion 118 may be formed to extend from the lower face of the upper unit to the side of the rotary stirring portion 180 disposed at the lower side of the roasting chamber 120, and a concave groove (not shown) for avoiding interference with the diffuser portion 118 may be formed at the stirring wing unit 181 of the rotary stirring portion 180.

At this time, the lamp unit 331 and the third heat source arrangement hole 114 of the third heat source part 320 are provided as a pair, and the first heat source arrangement hole 113 is arranged between the pair of third heat source arrangement holes 114. Also, the first heat source arrangement hole 113 disposed at the center of the upper unit main body 111 is formed in a circular shape, and the third heat source arrangement hole 114 is formed in a rectangular shape. In addition, a third heat source guide 119 surrounding the third heat source arrangement hole 114 and formed to extend downward is formed in the upper unit body 111 according to the present embodiment, and the cross section of the third heat source guide 119 is formed in a rectangular shape corresponding to the third heat source arrangement hole 114. The third heat source guide 119 may prevent dust generated from the object during the baking process in the baking chamber 120 from contaminating the surface of the lamp unit 321 of the third heat source 310.

In addition, the roasting apparatus 1 according to the present embodiment further includes: a measuring unit 510, 520, 530 for measuring a heat source supply temperature provided to the heat source part 310, 320, 330 of the bake chamber 120.

The radiation temperature measuring unit 510 measures the radiation temperature of the object accommodated in the inner space 121 of the roasting chamber 120, and is disposed at the upper unit 110 disposed at the upper side of the roasting chamber 120 and toward the inner space 120 side of the roasting chamber 120. At this time, the upper unit main body 111 is formed with a measurement hole 115 penetrating in the vertical direction. The measurement hole 115 is located at a position eccentric from the center of the upper unit body 111. The radiation temperature measuring unit 510 according to the present embodiment senses the infrared rays emitted from the surface of the object during the baking process to sense the temperature change of the object. Therefore, the roasting apparatus 1 according to the embodiment of the present invention has the following advantages compared to the existing roasting apparatus that senses only the temperature change inside the roasting chamber 120: the temperature of the object can be accurately sensed, and the baking intended by the user can be accurately performed. The radiation temperature measuring unit 510 may sense a surface temperature of the lower unit 130 forming the bottom surface of the roasting chamber 120 in the course of performing a prediction operation of preheating the chamber 120 before the object is thrown into the interior of the roasting chamber 120.

In addition, with respect to the installation position of the radiation temperature measuring unit 510 according to the present embodiment, various experiments were performed in which the radiation temperature measuring unit 510 is installed in a direction from the upper unit 110 side toward the lower side (i.e., a direction from the upper unit 110 side toward the internal space 121 of the baking chamber 120) as the optimal installation position of the radiation temperature measuring unit.

[ TABLE 1 ]

Set up the position	Scratch of filter	Heat damage of filter	Accuracy of measurement
				Upper part of the roasting chamber	X	X	Height of
Baking chamber central part	O	X	Height of
				Lower part of the roasting chamber	O	O	Is low in

Hereinafter, the radiation temperature measuring unit 510 according to the present embodiment is explained in more detail.

Fig. 8 is a diagram illustrating a state in which a first temperature sensing unit of the roasting apparatus of fig. 1 is disassembled, and fig. 9 is a diagram illustrating a cross section of the first temperature sensing unit of fig. 8.

Referring to fig. 8 and 9, the radiation temperature measuring unit 510 includes: a sensing part 511 for measuring temperature; a filter 514 disposed in front of the sensing part 511 and passing light of a preset wavelength band; a first bracket 513 fixed to the upper unit body 111 of the roasting part 100 and having a first through hole 519 formed therein; a second holder 521 having a second through hole 526 aligned with the first through hole 519, one side of which is fixed in contact with the first holder 513, and into which the sensing portion 511 is inserted; and a substrate 512 mounted with the sensing part 511 and fixed to the other side of the second bracket 521.

At this time, the sensing part 511, the first through hole 519, the second through hole 526, and the filter part 514 are aligned with the measuring hole 115 of the upper unit 110, and the filter part 514 is disposed between the first bracket 513 and the second bracket 521.

The sensing portion 511 senses infrared rays radiated from the object, is formed in a cylindrical shape, and is formed to extend in the same direction as the penetrating direction of the measurement hole 115. The sensing part 511 may be an Infrared (IR) sensor, for example.

For example, the filter 514 may be formed of a transparent material with less deformation to heat, such as glass, silicon gel, or the like, and only pass light in an infrared band among light transmitted from the bake chamber 120 to the sensing part 511 side.

In addition, the first support 513 includes: a first bracket body 515 forming an outer shape of the first bracket 513 and having a first through-hole 519 centrally disposed; and a pair of protruding portions 518 protruding upward from one side of the first bracket body 515, wherein a recessed space 517 is formed between the protruding portions 518, and a pair of first bracket fixing portions 516 penetrating a first fastening member 630 fastened to the upper unit body 111 are formed protruding below the first bracket body 515.

The second bracket 521 includes: a second bracket body 522 forming an outer shape of the second bracket 521; an insertion part 523 formed at one side of the second bracket body 522 and inserted into the recess space of the first bracket 513; a substrate seating surface 524 disposed on the upper surface of the second bracket 521 and on which the substrate 512 is seated; and a pair of substrate fixing protrusions 525 formed to protrude upward from the edge of the substrate seating surface 524, and configured to engage one side and the other side of the substrate 512.

The filter part 514 is closely attached between the recessed space 517 of the first bracket 513 and the insertion part 523 of the second bracket 521 in a state of being aligned with the first through hole 519 disposed in the recessed space 517, and the first bracket 513 and the second bracket 521 may be fixed to each other by the second fastening member 620 integrally penetrating the protrusion 518 of the first bracket 513 and the insertion part 523 of the second bracket 521 in a state of the insertion part 523 of the second bracket 521 being inserted into the recessed space 517 of the first bracket 513. That is, in a state where the filter portion 514 seals the first through hole 519, the first holder 513 and the second holder 521 firmly fix the filter portion 514 to each other with the filter portion 514 interposed therebetween, so that the first through hole 519 communicating with the measurement hole 115 of the roasting chamber 120 can prevent foreign substances in the internal space 121 of the roasting chamber 120 from entering the radiation temperature measurement unit 510 side and the outside. In addition, an elastic member (not shown) of a rubber or silicon material may be disposed at least one of between the filter part 514 and the first bracket 513 and between the filter part 514 and the second bracket 521 to firmly seal a space therebetween and to suppress damage to the filter part 514.

In addition, in a state where the sensor portion 511 is inserted into the second through hole 526 of the second bracket 521 and the substrate 512 is seated on the seating surface 524, the third fastening member 610 is fixed to the fastening hole 527 of the second bracket 521 by penetrating the substrate 512, so that the substrate 512 and the second bracket 521 can be firmly fixed.

The substrate 512 may be a PCB formed in a plate shape, and a baking chamber external temperature measuring element (not shown) capable of measuring a temperature of a position where the substrate 512 is disposed (i.e., an external temperature of the baking chamber 120 adjacent to the baking chamber 120) is provided in the substrate 512. That is, the radiation temperature measuring unit 510 according to the present embodiment may measure the radiation temperature of the inner space 121 of the roasting chamber 120 and the temperature of the outer space of the roasting chamber 120.

A cylindrical guide 116 is formed on the lower surface of the upper unit 110 so as to surround the measurement hole 115 and protrude downward, and the guide 116 is aligned with the measurement hole 115. That is, the guide portion 116 surrounding the measurement hole 115 is formed so as to protrude toward the internal space 121 side of the roasting chamber 120, so that it is possible to prevent dust and the like generated in the internal space 121 of the roasting chamber 120 from flowing toward the measurement hole 115 side and contaminating the surface of the filter portion 514 during the roasting process. The sensing part 511 may irradiate light for measurement to the inner space 121 of the roasting chamber 120 through the measurement hole 115 surrounded by the guide part 116, or may receive light emitted from the object.

Referring back to fig. 3 to 7, the measuring unit 510, 530, 540, 550 of the roasting apparatus 1 according to the present embodiment further includes: a convection temperature measuring unit 530 disposed on a flow path of the hot wind supplied to the roasting chamber 120 by the first heat source part 310 for measuring a convection temperature of the hot wind; a conduction temperature measuring unit 540, the conduction temperature measuring probe 541 being arranged between the second heat source part 330 and the outer circumferential surface of the baking chamber 120 to measure the conduction temperature of the second heat source part 330; and a contact temperature measuring unit 550 disposed at a lower side of the baking chamber 120 and directly contacted with the object during the baking process to measure the temperature of the object.

At this time, the convection temperature measuring probe 531 of the convection temperature measuring unit 530 may penetrate the side surface of the baking chamber 120 and the diffuser portion 118, and a tip portion of the convection temperature measuring probe 531 may be located at a downstream side of the heating unit 312, so that the temperature of the hot wind passing through the heating unit 312 may be measured.

And, the conduction temperature measuring probe 541 of the conduction temperature measuring unit 530 simultaneously contacts the inner face of the second heat source part main body 331 and the outer circumferential face of the roasting chamber 120 in a state of being arranged between the second heat source part 330 and the roasting chamber 120. At this time, the conduction temperature measuring probe 541 of the conduction temperature measuring unit 540 is disposed at a position farthest from the baking chamber side through hole and the second heat source portion main body side through hole. That is, since the baking chamber side penetration hole and the second heat source part main body side penetration hole communicate with the outside and the heating element of the second heat source part 330 is not disposed at the position, the conduction temperature measuring probe 541 of the conduction temperature measuring unit 540 is disposed at a position spaced farthest from the baking chamber side penetration hole and the second heat source part main body side penetration hole where the measured temperature is formed relatively high, thereby measuring the conduction temperature with reference to the highest temperature.

Hereinafter, a control method of the roasting apparatus according to the present embodiment, particularly a control method for the preheating operation will be described in detail.

Fig. 10 is a diagram illustrating a control method of the roasting apparatus of fig. 1.

Referring to fig. 10, before the object is charged into the roasting apparatus 1 according to the present embodiment to be roasted, a preheating operation of raising the temperature of the inner space 121 of the roasting chamber 120 to a desired level of preheating temperature is performed. The roasting apparatus 1 according to the present embodiment performs the preheating operation using 3 kinds of heat sources in combination, thereby having an advantage of being able to more rapidly raise the temperature of the inner space 121 to a desired preheating temperature. Also, after the preheating operation is ended, the roasting apparatus 1 according to the present embodiment can control the heat sources in the 3 to be different from each other according to the user orientation, so that the roasting of the flavor desired by the user can be realized.

First, a first heat source preheating operation step (S110) in which the first heat source part supplies hot wind to the inner space of the roasting chamber is performed.

Subsequently, in the first heat source prediction operation step (S110), at the measured first preheating temperature T₁Is a first reference temperature T_ref1In the above case (S120), the first heat source unit 310 is operated to supply the convection heat to the first preheating temperature T₁Maintained at the first reference temperature T_ref1The first heat source temperature maintaining operation step (S130). At this time, the first heat source temperature T according to the present embodiment₁Which may be the convection temperature of the hot wind measured by the convection temperature measuring unit 530, provides the first heat source part 310 with lower level power than in the first heat source preheating operation step (S110) in the first heat source temperature maintaining operation step (S130).

And, at the measured first heat source temperature T₁Less than the first reference temperature T_ref1In the case (S120), the first heat-source warm-up operation step (S110) is repeatedly executed.

Subsequently, a second heat source preheating operation step of the second heat source part 330 supplying conductive heat to the inner space 121 of the roasting chamber 120 is performed (S130).

In the second heat source preheating operation step (S130), at the measured second preheating temperature T₂Is the second reference temperature T_ref2In the above case (S150), the second heat source 330 supplies the conduction heat to set the second preheating temperature T₂Maintained at the second reference temperature T_ref2The second heat source temperature maintaining operation step (S160). At this time, the second preheating temperature T according to the present embodiment₂It may be that the conduction temperature of the second heat source part 330 measured by the conduction temperature measuring unit 540 supplies the second heat source part 330 with lower level power than the second heat source preheating operation step (S140) in the second heat source temperature maintaining operation step (S160).

And, at the measured second preheating temperature T₂Less than the second reference temperature T_ref2In the case (S150), the second heat source warm-up operation step (S140) is repeatedly performed.

Subsequently, a third heat source preheating operation step (S170) in which the third heat source part 320 supplies radiant heat to the inner space 121 of the roasting chamber 120 is performed.

In the third heat source preheating operation step (S170), at the measured third preheating temperature T₃Is a third reference temperature T_ref3In the above case (S190), the third heat source unit 320 supplies the radiant heat to set the third preheating temperature T₃Maintained at the third reference temperature T_ref3The third heat source temperature maintaining operation step (S190). At this time, the second preheating temperature T according to the present embodiment₃It may be that the radiant temperature of the inner space 121 of the roasting chamber 120 measured by the radiant temperature measuring unit 510, and the second heat source part 330 is supplied with power at a lower level than the third heat source preheating operation step (S170) in the third heat source temperature maintaining operation step (S190).

And, at the measured third preheating temperature T₃Less than a third reference temperature T_ref3In the case (S180), the third heat-source warm-up operation step (S170) is repeatedly performed.

Subsequently, a fourth preheating temperature T as a measured temperature of the outside of the roasting chamber 120₄Is raised to a fourth reference temperature T_ref4In case (S200), the warm-up operation is ended.

And, at the measured fourth preheating temperature T₄Less than a fourth reference temperature T_ref4In the case (S200), the third heat source temperature maintaining operation (S190) is repeatedly performed. At this time, a first heat source temperature maintaining operation step (S130) and a second heat source temperature maintaining operation step(S160) is also continuously performed.

Namely, the first preheating temperature T according to the present embodiment₁A second preheating temperature T₂A third preheating temperature T₃And a fourth preheating temperature T₄Are formed to be different from each other, the first preheating temperature T₁A second preheating temperature T₂And a third preheating temperature T₃Is a convection temperature, a conduction temperature, and a radiation temperature of heat transferred from the first heat source unit 310, the second heat source unit 330, and the third heat source unit 320, and a fourth preheating temperature T₄The temperature of the external space adjacent to the roasting chamber 120 is a temperature at which the temperature of the internal space 121 of the roasting chamber 120 can be estimated.

According to the proposed embodiments, a roasting apparatus and a control method of the roasting apparatus that reduce the roasting preheating operation time to further improve productivity can be provided.

Further, the progress of baking of the object is measured more effectively, and the user can perform desired baking.

While the preferred embodiments of the present invention have been described above, it is to be understood that the present invention is not limited thereto, and various modifications and changes may be made to the embodiments within the scope of the appended claims, the detailed description of the invention, and the scope of the appended drawings.

Detailed Description