阅读说明：本技术 风门调节装置、出风板结构及冰箱 (Air door adjusting device, air outlet plate structure and refrigerator ) 是由 王铭坤 韩鹏 文翔 冯云凌 廖虎 李江伟 于 2021-09-30 设计创作，主要内容包括：本发明提供了一种风门调节装置、出风板结构及冰箱,涉及冰箱技术领域,解决了现有技术中存在的现有冰箱风门的控制都需要利用到电机驱动的技术问题。该装置包括支撑结构和弹性袋,其中,弹性袋内部填充有蓄冷剂且弹性袋支撑在支撑结构上,通过蓄冷剂在固、液态之间转化使得当蓄冷剂呈固态时能将风门顶起以关闭风口,当蓄冷剂呈液态时风门能在重力作用下下落以打开风口。本发明利用物理特性实现风口的打开、关闭,无需额外耗电。(The invention provides an air door adjusting device, an air outlet plate structure and a refrigerator, relates to the technical field of refrigerators, and solves the technical problem that the control of an air door of the existing refrigerator in the prior art needs to be driven by a motor. The device comprises a supporting structure and an elastic bag, wherein the elastic bag is filled with a coolant and supported on the supporting structure, the coolant is converted between solid and liquid, so that the air door can be jacked up to close the air port when the coolant is solid, and the air door can fall down under the action of gravity to open the air port when the coolant is liquid. The invention realizes the opening and closing of the tuyere by utilizing the physical characteristics without additional power consumption.)

1. A damper adjustment device, characterized in that it comprises a support structure (1) and an elastic bag, wherein,

the elastic bag is filled with a cold storage agent (8) and supported on the supporting structure (1), and the cold storage agent (8) is converted between solid and liquid states, so that the air door (2) can be jacked up to close the air port (3) when the cold storage agent (8) is solid, and the air door (2) can fall down under the action of gravity to open the air port (3) when the cold storage agent (8) is liquid.

2. Damper adjustment device according to claim 1, characterized in that the air inlet (3) is an air inlet of a refrigeration device, the support structure (1) is located in a refrigeration cavity of the refrigeration device, and the phase of the coolant (8) can be changed by changing the temperature in the refrigeration cavity.

3. Damper adjusting device according to claim 1 or 2, characterized in that the support structure (1) is connected to a tuyere plate (4), the tuyere plate (4) is provided with the tuyere (3), a limiting space (5) is formed on the support structure (1) or the support structure (1) and the tuyere plate (4) cooperate to form a limiting space (5), the flexible bag is located in the limiting space (5) and the damper (2) is supported on the flexible bag.

4. A damper adjustment device according to claim 3, characterized in that the spacing space (5) is of a slit-like configuration to facilitate expansion of the coolant (8) in the height direction from a liquid state to a solid state.

5. The damper adjusting device according to claim 3, wherein the damper (2) is a plate-shaped structure, the damper (2) is inserted into the limiting space (5) and the outer side surface of the damper (2) is matched with the side surface of the limiting space (5) to guide the damper (2) to move in the height direction.

6. Damper adjustment device according to claim 5, characterized in that the support structure (1) comprises a support part (11) and a side part (12), the support part (11) being arranged at one side of the air flap (4), the damper (2) being inserted into the support part (11) and sandwiched between the support part (11) and the air flap (4), the two side parts (12) being arranged at the left and right sides of the damper (2) respectively and being connected to the support part (11).

7. Damper adjusting device according to claim 6, characterized in that the side part (12) is plate-shaped and protrudes out of the support part (11) in the height direction.

8. The damper adjustment device of claim 1, wherein the resilient pocket is formed of a resilient rubber material.

9. An air outlet plate structure, characterized in that, an air port (3) is formed on the air outlet plate structure, the air door adjusting device of any one of claims 1-8 is arranged on the air outlet plate structure, and the air door adjusting device is matched with the corresponding air port (3).

10. An air-out plate structure according to claim 9, characterized in that a plurality of said air outlets (3) are formed on said air-out plate structure, said air outlet (3) far from the air duct of the cooling device is a far-end air outlet, said air outlet (3) near to the air duct is a near-end air outlet, said damper adjusting device is matched with the corresponding far-end air outlet, and the area of the far-end air outlet (31) matched with said air outlet adjusting device is larger than that of the near-end air outlet.

11. A refrigerator comprising the air outlet structure of any one of claims 9 to 10.

Technical Field

The invention relates to the technical field of refrigerators, in particular to an air door adjusting device, an air outlet plate structure and a refrigerator.

Background

The air door of the current mainstream air-cooled refrigerator is regulated and controlled by a small motor or a stepping motor, and is controlled to be opened and closed according to control logic and temperature detection through gear transmission or direct connection with an air door mechanism so as to realize the cooling and temperature maintenance of each chamber of the refrigerator. In addition, in the prior art, besides using gear transmission, the damper control is additionally provided with a feedback device for monitoring whether the damper is closed; and an air door mechanism is driven to move by adopting electromagnetism, so that the opening and closing of the air door are realized.

The applicant has found that the prior art has at least the following technical problems:

1. the air door of the fan needs to be driven by a motor, and the motor damage can cause faults;

2. the motor is adopted to drive the required wire harness, and the space is occupied.

Disclosure of Invention

The invention aims to provide an air door adjusting device, an air outlet plate structure and a refrigerator, and solves the technical problem that the air door of the existing refrigerator needs to be driven by a motor in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.

In order to achieve the purpose, the invention provides the following technical scheme:

the invention provides an air door adjusting device which comprises a supporting structure and an elastic bag, wherein a cold-storage agent is filled in the elastic bag, the elastic bag is supported on the supporting structure, the cold-storage agent is converted between a solid state and a liquid state, so that an air door can be jacked up to close an air port when the cold-storage agent is in the solid state, and the air door can fall down under the action of gravity to open the air port when the cold-storage agent is in the liquid state.

Furthermore, the air port is an air inlet of the refrigeration equipment, the supporting structure is located in a refrigeration cavity of the refrigeration equipment, and the phase state of the coolant can be changed through the change of the temperature in the refrigeration cavity.

Furthermore, the supporting structure is connected with the air port plate, the air port is arranged on the air port plate, a limiting space is formed on the supporting structure or the supporting structure is matched with the air port plate to form the limiting space, the elastic bag is located in the limiting space, and the air door is supported on the elastic bag.

Further, the limiting space is of a slit-shaped structure, so that the coolant converted from a liquid state to a solid state expands along the height direction.

Further, the air door is plate-shaped structure, the air door inserts spacing space just the lateral surface of air door with the side in spacing space cooperatees in order to lead the air door removes along the direction of height.

Further, bearing structure includes supporting part and lateral part, the supporting part sets up one side of wind gap board, the air door inserts the supporting part just presss from both sides the supporting part with between the wind gap board, two the lateral part sets up respectively the left and right sides of air door and all with the supporting part is connected.

Further, the side portion is plate-shaped and protrudes from the support portion in the height direction.

Furthermore, the elastic bag is made of elastic rubber.

The air outlet plate structure is provided with an air port, the air outlet plate structure is provided with the air door adjusting device, and the air door adjusting device is matched with the corresponding air port.

Furthermore, a plurality of air ports are formed on the air outlet plate structure, the air port far away from the air supply duct of the refrigeration equipment is a far-end air port, the air port close to the air supply duct is a near-end air port, the air door adjusting device is matched with the far-end air port correspondingly, and the area of the far-end air port matched with the air port adjusting device is larger than that of the near-end air port.

The refrigerator comprises the air outlet plate structure.

Because the volume of the cold storage agent is expanded when the cold storage agent is converted from a liquid state to a solid state, and the characteristic that the volume is changed when the phase is changed is utilized, the air door adjusting device is designed, the air door adjusting device can replace an air door adjusting mechanism which utilizes a motor and a transmission mechanism to drive an air door to open and close in the prior art, and the opening and closing of an air port are realized by utilizing physical characteristics without additional power consumption. The specific structure of the air door adjusting device is as follows: the air door adjusting device comprises a supporting structure and an elastic bag, wherein the elastic bag is filled with a coolant and supported on the supporting structure, the coolant is converted between solid and liquid, so that the air door can be jacked up to close the air port when the coolant is solid, and the air door can fall down to open the air port under the action of gravity when the coolant is liquid.

The preferred technical scheme of the invention can at least produce the following technical effects:

spacing space is slit column structure, and the space is long and narrow more, and the inflation that solidifies just changes more easily along the ascending stroke in direction of height, and the action that promotes the air door is more sensitive, realizes the accurate control of certain degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a prior art damper adjustment configuration;

fig. 2 is a schematic sectional view of a damper adjusting device according to an embodiment of the present invention (with a tuyere in an open state);

FIG. 3 is a schematic cross-sectional view of a damper adjustment device according to an embodiment of the present invention (with the tuyere in a partially opened state);

fig. 4 is a schematic view of the coolant in liquid state and the tuyere plate provided in the embodiment of the present invention (the tuyere is in an open state);

fig. 5 is a schematic view of the coolant in solid state and the tuyere plate according to the embodiment of the present invention (the tuyere is in a closed state);

fig. 6 is a schematic structural diagram of an air outlet plate structure provided in the embodiment of the present invention.

FIG. 1-support structure; 11-a support; 12-side part; 2-a damper; 3-tuyere; 31-adjusting the tuyere; 4-air port plate; 5-a limit space; 6-driving a motor; 7-a transmission gear; 8-a coolant; 9-variable temperature air door; 10-refrigeration damper.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1, the air door control mechanism of a common refrigerator is provided, the motor action can control the switch of a variable temperature air door 9 and a cold storage air door 10 through gear transmission, but the mechanism has a complex structure, more parts, needs motor drive, has longer motor wire and short service life of a fine drive motor at low temperature. Based on the above, the invention provides an air door adjusting device, which comprises a supporting structure 1 and an elastic bag, wherein the elastic bag is filled with a coolant 8 and supported on the supporting structure 1, the coolant 8 is converted between a solid state and a liquid state, so that the air door 2 can be jacked up to close the air opening 3 when the coolant 8 is in the solid state, and the air door 2 can fall down under the action of gravity to open the air opening 3 when the coolant 8 is in the liquid state. Because the volume of the cold storage agent 8 is expanded when the cold storage agent is converted from a liquid state to a solid state, the air door adjusting device is designed by utilizing the characteristic that the volume is changed when the phase is changed, the air door adjusting device can replace an air door control mechanism which utilizes a motor and a transmission mechanism to drive an air door to open and close in the prior art, the opening and closing of an air port are realized by utilizing physical characteristics, and additional power consumption is not needed.

As an optional embodiment, the air inlet 3 is an air inlet of a refrigeration device, the support structure 1 is located in a refrigeration cavity of the refrigeration device, and the phase state of the coolant 8 can be changed by changing the temperature in the refrigeration cavity, so as to implement an automatic adjustment function, which is specifically illustrated as follows: the refrigerating equipment can be a refrigerator or an ice chest, referring to fig. 2 and 3, when cold air entering an air channel through an evaporator of the refrigerator passes through an air port 3, the cold air directly enters a refrigerator chamber for cooling, meanwhile, part of the cold air sinks to cool a cold storage agent, the cold storage agent begins to solidify after reaching a phase change point, the volume expansion is enlarged after the solidification, a movable air door 2 is pushed to move upwards, the air port 3 is gradually closed, and automatic stepless temperature regulation is realized in the closing process. When the cold-storage agent is completely solidified, the air door 2 blocks the air opening, cold air cannot enter the compartment, the temperature of the cold-storage agent is gradually increased and melted and is changed back to liquid, the movable air door 2 moves downwards when losing the support, the air door 2 is gradually opened, and the temperature is controlled. When the cold-storage agent is in a solid-liquid mixing state, the air opening 3 of the air door 2 is small, the air quantity is small, an automatic stable maintaining state can be formed, and the temperature fluctuation is reduced.

As an optional embodiment, the supporting structure 1 is connected with the tuyere plate 4, the tuyere plate 4 is provided with the tuyere 3, the supporting structure 1 is provided with the limiting space 5 or the supporting structure 1 is matched with the tuyere plate 4 to form the limiting space 5, the elastic bag is positioned in the limiting space 5, and the air door 2 is supported on the elastic bag. Referring to fig. 2 and 3, the supporting structure 1 and the sealing plate 4 are shown to form a spacing space 5, but it is also possible to form a spacing space on the supporting structure 1 by forming a groove on the top of the supporting structure 1.

The limiting space 5 is specifically described as follows: spacing space 5 is slit column structure, and the space is more long and narrow, and the inflation that solidifies just changes more easily along the ascending stroke in direction of height, and the action that promotes air door 2 is more sensitive, realizes the accurate control of certain degree. Referring to fig. 3, it is shown that the thickness of the tuyere plate 4 is uniform at all positions, and the thickness of the tuyere plate 4 inserted into the limiting space 5 may be made thinner, and the thickness of the tuyere plate 4 except the region inserted into the limiting space 5 may be made thicker, so as to reduce the width of the limiting space 5.

In order to realize more accurate adjustment, the dosage of the coolant in the elastic bag can be adjusted according to the requirement, and the smaller the dosage is, the shorter the expansion time after reaching the phase change point is, and the more accurate control is easily realized. Therefore, according to the actual situation, a plurality of small air ports 3 can be additionally arranged on the air port plate 3, so that the normal use of the air door adjusting device provided by the invention can be ensured while the dosage of the coolant in the elastic bag is ensured to be reduced.

The utility model provides an air outlet plate structure, is formed with wind gap 3 on the air outlet plate structure, is provided with air door adjusting device on the air outlet plate structure, and air door adjusting device cooperatees with corresponding wind gap 3, adjusts the condition of opening, closing of corresponding wind gap 3 through air door adjusting device.

An air port 3 can be formed on the air outlet plate structure; but a plurality of wind gaps 3 are formed on the preferable air outlet plate structure, more than one air door adjusting device is arranged, the air door adjusting devices are matched with the corresponding wind gaps 3, the sizes of the wind gaps 3 on the wind gap plate 4 can be different, the air door adjusting devices can be arranged on all the wind gaps 3, and the air door adjusting devices can be arranged on only part of the wind gaps 3.

The air outlet plate is structurally provided with a plurality of air ports 3, the air port 3 far away from an air supply duct of refrigeration equipment is a far-end air port, the refrigeration equipment can be a refrigerator or an ice chest, the air port 3 close to the air supply duct is a near-end air port, an air door adjusting device is matched with the corresponding far-end air port, and the area of the far-end air port matched with the air door adjusting device is larger than that of the near-end air port. In the prior art, a plurality of air ports 3 are usually arranged on an air port plate 4 to facilitate the uniformity of the temperature in a refrigerating cavity, but the far-end air port is far away from an air supply air duct, so that the condition that the air output of the far-end air port is small occurs, and the uniformity of the temperature in the refrigerating cavity is not facilitated. In order to solve the problem, the opening area of part of the far-end tuyere is increased (the far-end tuyere with the increased opening area is defined as the adjusting tuyere 31) so as to increase the air output; meanwhile, the air door adjusting device is additionally arranged on the adjusting air port 31, so that the problem that the temperature is uneven due to large area of the adjusting air port 31 and large air output is avoided.

Referring to fig. 5, two adjusting air ports 31 are shown for the air outlet plate structure of the porous air port, the two adjusting air ports 31 are respectively and correspondingly provided with an air door adjusting device, the air door switch is pushed by solidification and liquid transformation to realize local temperature adjustment, and finally, the uniformity of the temperature of the refrigeration cavity is realized.

Example 1:

the invention provides an air door adjusting device which comprises a supporting structure 1 and an elastic bag, wherein a cold-storage agent 8 is filled in the elastic bag, the elastic bag is supported on the supporting structure 1, the material of the elastic bag is an elastic rubber material, and the cold-storage agent 8 is converted between a solid state and a liquid state, so that an air door 2 can be jacked up to close an air port 3 when the cold-storage agent 8 is in a solid state, and the air door 2 can fall down under the action of gravity to open the air port 3 when the cold-storage agent 8 is in a liquid state.

The air port 3 is an air inlet of the refrigeration equipment, the supporting structure 1 is positioned in a refrigeration cavity of the refrigeration equipment, and the phase state of the coolant 8 can be changed through the temperature change in the refrigeration cavity. Bearing structure 1 is connected with tuyere plate 4, sets up wind gap 3 on tuyere plate 4, and bearing structure 1 cooperatees with tuyere plate 4 and forms spacing space 5, and air door 2 is platelike structure, and the elasticity bag is located spacing space 5, and air door 2 inserts spacing space 5 and supports on the elasticity bag.

Referring to fig. 2 and 3, the supporting structure 1 includes a supporting portion 11 and a lateral portion 12, the supporting portion 11 is disposed on one side of the air vent plate 4, the air door 2 is inserted into the supporting portion 11 and clamped between the supporting portion 11 and the air vent plate 4, the two lateral portions 12 are disposed on the left and right sides of the air door 2 respectively and are connected to the supporting portion 11, the lateral portion 12 is plate-shaped and protrudes out of the supporting portion 11 along the height direction, and the guide air door 2 moves along the height direction through the supporting portion 11, the air vent plate 4 and the left and right lateral portions 12. In addition, referring to fig. 2, a position limiting plate 13 is additionally arranged on the top of the block-shaped supporting part 11, and the position limiting plate 13 is positioned on one side of the tuyere plate 4, so that the depth of the position limiting space 5 can be increased.

The phase transition temperature of the coolant 8 is selected according to the requirements of the refrigerator compartment, for example, the temperature required by the refrigerator cold storage compartment is 4 ℃, the phase transition point of the coolant is 4-5 ℃, the air door is fully opened, cold air is blown into the cold storage compartment, and simultaneously the coolant and the compartment are cooled, when the temperature of the refrigerator compartment is close to 4 ℃, the temperature of the phase transition point of the coolant is reached, the coolant begins to solidify, so that the coolant is converted from a liquid state into a solid state, and the volume expansion of the coolant gradually pushes the air door 2 to move upwards to close the air port 3, so that the temperature control is realized; because the air port 3 is closed, after the temperature is reduced without cold air, when the temperature of the coolant rises to the phase change point, the coolant is gradually converted into liquid, the air door 2 automatically descends under the action of gravity, and the cold air is blown into the refrigerating chamber, so that the air door is opened and closed. Because the cold-storage agent needs a certain process for solidification and melting, the stepless air door can be opened and closed. Similarly, the required temperature of a freezing chamber, such as a refrigerator freezing chamber, is-5 ℃, and the phase change point of the cold storage agent is selected to be-6 ℃ to-4 ℃. Referring to fig. 4, it is illustrated that the coolant is in a liquid state and the tuyere 3 is in an open state; referring to fig. 5, it is shown that the coolant is condensed into a solid state and the damper 2 closes the tuyere 3.

Example 2:

the refrigerator comprises the air outlet plate structure provided by the invention, and the air door adjusting device on the air outlet plate structure is positioned in a refrigerating cavity of the refrigerator.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.