阅读说明：本技术 平板状的热交换器及冷冻装置 (Flat plate-like heat exchanger and refrigerating apparatus ) 是由 廖荣燊 于 2018-05-29 设计创作，主要内容包括：本发明公开了一种平板状的热交换器及冷冻装置,包括板状本体以及多个肋片,板状本体具有内部空间,并包括顶面、底面以及一对侧面,侧面连接于顶面及底面,围绕形成内部空间。肋片位于内部空间中,各肋片的顶端连接于顶面,各肋片的底端连接于底面,肋片用以将内部空间分隔为多个通道,通道用以通入进行热交换用的冷媒。底面具有朝外凸出的凸出部,以对应于内部空间形成下凹槽,下凹槽邻接并连通于通道中的一者,且下凹槽的底部低于通道的底部,藉以容置冷媒的冷冻油回流。肋片可提升结构强度,下凹槽容置冷冻油回流,避免影响冷媒效率。(The invention discloses a flat-plate-shaped heat exchanger and a refrigerating device, which comprise a plate-shaped body and a plurality of fins, wherein the plate-shaped body is provided with an inner space and comprises a top surface, a bottom surface and a pair of side surfaces, and the side surfaces are connected with the top surface and the bottom surface and surround to form the inner space. The fin is arranged in the inner space, the top end of each fin is connected to the top surface, the bottom end of each fin is connected to the bottom surface, the fin is used for dividing the inner space into a plurality of channels, and the channels are used for introducing a refrigerant for heat exchange. The bottom surface is provided with a convex part protruding outwards to form a lower groove corresponding to the inner space, the lower groove is adjacent to and communicated with one of the channels, and the bottom of the lower groove is lower than the bottom of the channel so as to accommodate the refrigerant oil backflow of the refrigerant. The rib can promote structural strength, and the low groove holding refrigeration oil backward flow avoids influencing refrigerant efficiency.)

1. a flat plate-like heat exchanger, comprising:

A plate-shaped body having an inner space and including a top surface, a bottom surface, and a pair of side surfaces connected to the top surface and the bottom surface so as to surround the inner space; and

The fins are positioned in the inner space, the top end of each fin is connected to the top surface, the bottom end of each fin is connected to the bottom surface, the fins are used for dividing the inner space into a plurality of channels, and the channels are used for introducing a refrigerant for heat exchange;

The bottom surface is provided with a convex part protruding outwards so as to form a lower groove corresponding to the inner space, the lower groove is adjacent to and communicated with one of the channels, and the bottom of the lower groove is lower than the bottom of the channel, so that the refrigerant oil of the refrigerant is contained to flow back.

2. The heat exchanger of claim 1, wherein: the plate-shaped body further comprises a front end face and a rear end face which are opposite to each other, and gaps are formed among the fins, the front end face and the rear end face, and the cooling medium flows.

3. The heat exchanger of claim 2, wherein: the partition wall is connected to the top surface, the bottom surface, the front end surface and the rear end surface and used for dividing the plate-shaped body into a first part and a second part which are adjacent but not communicated.

4. The heat exchanger of claim 3, wherein: the flow direction of the refrigerant in the first part is opposite to that in the second part.

5. The heat exchanger of claim 4, wherein: the rear end face is provided with a refrigerant outlet and a refrigerant inlet, the refrigerant outlet is located in the first portion and used for allowing the refrigerant to leave the first portion, and the refrigerant inlet is located in the second portion and used for allowing the refrigerant to enter the second portion.

6. The heat exchanger of claim 5, wherein: and the refrigerant outlet and the refrigerant inlet are respectively connected with the refrigerant inlet and the refrigerant outlet.

7. The heat exchanger of claim 3, wherein: the plate-shaped body, the fins and the partition walls are integrally formed by metal.

8. The heat exchanger of claim 1, wherein: the heat exchanger further comprises a plurality of fins which are connected with the plate-shaped body and distributed on the bottom surface, so that the heat exchange area is increased.

9. The heat exchanger of claim 1, wherein: the plate-shaped body and the fins are integrally formed by metal.

10. A freezer for freezing and storing frozen products, comprising:

A freezing chamber; and

A plate-like heat exchanger disposed in the freezing chamber for placing the frozen articles, the heat exchanger comprising:

A plate-shaped body having an inner space and including a top surface, a bottom surface, and a pair of side surfaces connected to the top surface and the bottom surface so as to surround the inner space; and

the fins are positioned in the inner space, the top end of each fin is connected to the top surface, the bottom end of each fin is connected to the bottom surface, the fins are used for dividing the inner space into a plurality of channels, and the channels are used for introducing a refrigerant for heat exchange;

The bottom surface is provided with a convex part protruding outwards so as to form a lower groove corresponding to the inner space, the lower groove is adjacent to and communicated with one of the channels, and the bottom of the lower groove is lower than the bottom of the channel, so that the refrigerant oil of the refrigerant is contained to flow back.

[ technical field ] A method for producing a semiconductor device

The present invention relates to a heat exchanger, and more particularly, to a flat plate-shaped heat exchanger and a refrigeration apparatus using the same.

[ background of the invention ]

In a known refrigeration apparatus, a refrigerant is compressed by a compressor, and then the refrigerant is expanded in an evaporator to absorb heat, thereby lowering the temperature of the air around the evaporator. And then the cooled cold air is guided into the freezer, and the cold air is utilized to cool the frozen articles in the freezer, thereby completing the refrigeration action. However, since the demand for quick freezing is increasing in the market, the method of cooling by introducing cold air alone cannot provide the quick cooling capacity required for quick freezing.

in the prior art, a heat exchanger is used to perform cooling in a freezer, and a refrigerant is introduced into the heat exchanger in the freezer to achieve faster cooling efficiency. However, the refrigerant will change phase and pressure in the heat exchanger, and the heat exchanger is easily deformed after a long time, resulting in a change in the refrigerant flow rate. In severe cases, the pipes leading to the refrigerant may even be blocked, so that the refrigeration device cannot achieve the desired refrigeration capacity. On the other hand, when the refrigerant oil is mixed in the refrigerant and flows along with the refrigerant in the pipe fitting, the viscosity of the refrigerant oil is often affected by temperature change, and the refrigerant oil is further attached to the inner wall of the pipeline, so that the heat absorption efficiency of the refrigerant is affected, and the refrigeration device can not achieve the expected refrigeration capacity.

[ summary of the invention ]

In order to solve the above problems, the present invention provides a flat plate-shaped heat exchanger and a refrigeration apparatus, in which a plurality of fins are used to maintain the mechanical strength of the heat exchanger, thereby preventing the heat exchanger from being deformed, and in addition, a channel for returning a liquid (such as refrigeration oil) with a heavy specific gravity is provided by using a lower groove, thereby preventing the refrigeration efficiency of a refrigerant from being affected.

The invention relates to a flat-plate-shaped heat exchanger, which comprises a plate-shaped body and a plurality of fins, wherein the plate-shaped body is provided with an internal space and comprises a top surface, a bottom surface and a pair of side surfaces, the side surfaces are connected with the top surface and the bottom surface so as to form the internal space in a surrounding manner, the fins are positioned in the internal space, the top end of each fin is connected with the top surface, the bottom end of each fin is connected with the bottom surface, the fins are used for dividing the internal space into a plurality of channels, the channels are used for introducing a refrigerant for heat exchange, the bottom surface is provided with a convex part which protrudes outwards and forms a lower groove corresponding to the internal space, the lower groove is adjacent to and communicated with one of the channels, and.

The freezing device of the invention is used for freezing and storing frozen articles, and comprises a freezing chamber and a flat-plate heat exchanger, wherein the heat exchanger is arranged in the freezing chamber, the heat exchanger comprises a plate-shaped body and a plurality of fins, wherein the plate-shaped body is provided with an inner space and comprises a top surface, a bottom surface and a pair of side surfaces, the side surfaces are connected with the top surface and the bottom surface, thereby forming an inner space in an enclosing manner, the fins are positioned in the inner space, the top end of each fin is connected with the top surface, the bottom end of each fin is connected with the bottom surface, the fins are used for dividing the inner space into a plurality of channels for introducing a refrigerant for heat exchange, the bottom surface is provided with a convex part protruding outwards to form a lower groove corresponding to the inner space, the lower groove is adjacent to and communicated with one of the channels, and the bottom of the lower groove is lower than the bottom of the channel, so that the refrigerant oil containing the refrigerant flows back.

The flat plate-shaped heat exchanger and the refrigeration apparatus according to the present invention have the following advantageous effects:

The fin can avoid the deformation of the plate-shaped body, thereby maintaining the volume of the channel and the flow rate of the refrigerant. The lower groove can be used for containing the refrigeration oil with high specific gravity, a channel for backflow of the refrigeration oil liquid is formed, and the efficiency of a refrigerant is prevented from being influenced.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a plate-like heat exchanger according to an embodiment of the present invention.

Fig. 2 is a top sectional view of the heat exchanger of fig. 1.

FIG. 3 is a schematic view of a plate-like heat exchanger according to another embodiment of the present invention.

Fig. 4 is a schematic view of a freezing apparatus according to another embodiment of the present invention.

Description of the reference numerals

Heat exchanger 100,200 plate-like body 110,210

Refrigerant inlet 110b of refrigerant outlet 11a

Top 111,211 and side 113,213

Projections 117 of bottom surface 115,215

Front end face 118 and rear end face 119

Internal space 120,220 passageway 123,223

Lower groove 127 ribs 130,230

Spacer 150 with gap 130a

Communicating pipe 190 refrigerating apparatus 300

Circulating fan 320 of freezing chamber 310

first portion R1 of frozen article P

The second fraction R2 flows to F1, F2

[ detailed description ] embodiments

The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments, as illustrated in the accompanying drawings.

The invention provides a flat plate-shaped heat exchanger and a refrigerating device, wherein a plurality of fins are arranged in the inner space of a plate-shaped body of the heat exchanger, and the heat exchanger has a design of a lower groove. The fins connected with the top surface and the bottom surface can improve the structural strength of the heat exchanger and avoid the problem of deformation of the heat exchanger, such as expansion or compression collapse, and the like caused by pressure difference. In addition, the lower groove can be used for accommodating the backflow of the refrigeration oil with heavier specific gravity, and the problem that the refrigerant efficiency is influenced is avoided.

Fig. 1 is a schematic diagram of a flat plate heat exchanger according to an embodiment of the invention. The heat exchanger 100 includes a plate-shaped body 110 and a plurality of fins 130. The plate-shaped body 110 has an inner space 120 and includes a top surface 111, a bottom surface 115, and a pair of side surfaces 113, wherein the pair of side surfaces 113 are connected to the top surface 111 and the bottom surface 115. The top surface 111, the bottom surface 115, and the pair of side surfaces 113 surround to form an inner space 120. Fins 130 are disposed in the inner space 120, a top end of each fin 130 is connected to the top surface 111, and a bottom end of each fin 130 is connected to the bottom surface 115, so as to divide the inner space 120 into a plurality of channels 123, and the channels 123 are used for introducing a refrigerant for heat exchange.

the bottom surface 115 has a protrusion 117 protruding outward to form a lower groove 127 corresponding to the inner space 120. The lower groove 127 is adjacent to and communicates with one of the channels 123, and the bottom of the lower groove 127 is lower than the bottom of the channel 123, so that the refrigerant oil, which is heavier than the refrigerant, is deposited and contained in the lower groove 127 and separated from the refrigerant flowing in the channel 123. Therefore, a refrigerating oil liquid backflow channel can be provided, and the problem that the heat absorption efficiency of a refrigerant is influenced is avoided.

Referring to fig. 1 and 2, fig. 2 is a top sectional view of the heat exchanger in fig. 1. The plate-shaped body 110 of the present embodiment further includes a front end surface 118 and a rear end surface 119 opposite to each other. The plate-like body 110 has a top surface 111, a bottom surface 115, a side surface 113, a front end surface 118 and a rear end surface 119 connected to form an inner space 120. The fins 130 are disposed in the inner space 120, and have a gap 130a with the front surface 118 and the rear surface 119 for flowing the cooling medium. In this embodiment, the top end of each of the fins 130 is continuously connected to the top surface 111, and the bottom end of each of the fins 130 is continuously connected to the bottom surface 115, so that the refrigerant can flow to different channels 123 only through the gaps 130 a.

In this embodiment, the plate-shaped body 110 and the fins 130 disposed therein are integrally formed of metal. In one embodiment, the sheet is stamped from aluminum metal. However, the present invention is not limited to aluminum metal, and the manufacturing method is not limited to stamping process; other materials that may be used as heat exchangers, as well as other process techniques that may be used to fabricate heat exchangers, may be used with the heat exchanger 100 of the present invention.

as shown in fig. 1 and 2, the heat exchanger 100 of the present embodiment further includes a partition wall 150 located in the inner space 120. The partition wall 150 is connected to the top surface 111, the bottom surface 115, the front end surface 118 and the rear end surface 119, and is used for dividing the plate-shaped body 110 into a first portion R1 and a second portion R2 which are adjacent but not communicated with each other. The rear end surface 119 has a refrigerant outlet 110a and a refrigerant inlet 110b, the refrigerant outlet 110a is located in the first portion R1 for allowing the refrigerant to leave the first portion R1, and the refrigerant inlet 110b is located in the second portion R2 for allowing the refrigerant to enter the second portion R2. The heat exchanger 100 further includes a communication pipe 190, and both ends of the communication pipe 190 are connected to the refrigerant outlet 110a and the refrigerant inlet 110b, respectively. The refrigerant having exchanged heat in the first portion R1 continues to move to the second portion R2 through the communication pipe 190, and exchanges heat.

As described above, the refrigerant exchanges heat in the first portion R1 and then moves to the second portion R2 through the connection pipe 190, that is, the refrigerant flows in the first portion R1 and the second portion R2 in opposite directions. In the present embodiment, the refrigerant enters the plate-shaped body 110 from the left side of the first portion R1 (for example, enters the first portion R1 through the opening on the left side of the first portion R1 shown in fig. 2), moves among the different channels 123 through the gap 130a, and flows to the refrigerant outlet 110a according to the flow direction F1. The communication pipe 190 is a U-shaped pipe, and the refrigerant separated from the first portion R1 is introduced into the plate-shaped body 110 again from the refrigerant inlet 110b of the second portion R2. The refrigerant enters the second portion R2, flows through the second portion R2 in the flow direction F2, and leaves the plate-like body 110 from the left side of the second portion R2 (e.g., leaves the second portion R2 through an opening on the left side of the second portion R2 as shown in fig. 2). The flow direction F1 of the refrigerant in the first portion R1 is opposite to the flow direction F2 of the refrigerant in the second portion R2.

In this embodiment, the heat exchanger 100 may be used in a freezer as a freezing carrier plate for placing frozen articles. After the refrigerant is introduced into the plate-shaped body 110, the refrigerant flows through the plurality of channels 123 to exchange heat with the frozen objects on the heat exchanger 100, and the refrigerant evaporates to absorb heat, thereby reducing the temperature of the frozen objects and achieving the effect of freezing. In addition, the plate-like body 110, the ribs 130 and the partition walls 150 may be integrally formed by metal, and the material and the manufacturing process thereof are not limited in the present invention.

Fig. 3 is a schematic diagram of a flat plate heat exchanger according to another embodiment of the invention. The heat exchanger 200 includes a plate-shaped body 210 and a plurality of fins 230. The plate-shaped body 210 has an inner space 220, and includes a top surface 211, a bottom surface 215, and a pair of side surfaces 213, surrounding the inner space 220. The fins 230 are disposed in the inner space 220, and have top ends connected to the top surface 211 and bottom ends connected to the bottom surface 215, so as to divide the inner space 220 into a plurality of channels 223, and the channels 223 are used for introducing a refrigerant for heat exchange.

Unlike the heat exchanger 100 of the previous embodiment, the heat exchanger 200 of the present embodiment further includes a plurality of fins 270. The fins 270 are connected to the plate-shaped body 210 and distributed on the bottom surface 215, thereby increasing the heat exchange area. More specifically, the fins 270 are connected to the bottom surface 215 of the plate-shaped body 210 in a spaced manner. When the fin 270 is applied to a refrigeration device, the contact area between the heat exchanger 200 and the air in the refrigeration device can be increased, and the refrigeration effect can be improved. The top surface 211 of the plate-shaped body 210 is not connected with the fins 270 to form a flat surface, so that the frozen objects can be directly carried on the top surface 211, and the frozen preservation of the frozen objects is facilitated.

fig. 4 is a schematic view of a refrigeration apparatus according to another embodiment of the invention. The freezing device 300 is used for freezing and housing frozen goods P, and includes a freezing chamber 310 and a plate-shaped heat exchanger. The present embodiment is described by taking the heat exchanger 200 including the fin 270 of the previous embodiment as an example, and the details thereof are not described in detail herein. The heat exchanger 200 is provided in the freezing chamber 310 for the frozen articles P to be placed therein. The plurality of heat exchangers 200 may be arranged in parallel as required in the freezing chamber 310, and may be arranged in a multi-layer manner to increase the number of the frozen products P to be placed.

The freezing device 300 may further include a circulation fan 320 for providing a strong circulation wind to cool the freezing chamber 310. In cooperation with the plate-shaped heat exchanger 200, the heat exchange area with the air is increased by the fins 270, and the freezing device 300 can provide a quick and effective freezing effect by a refrigeration method in which the frozen objects P directly contact the heat exchanger 200.

The flat plate-like heat exchanger and the refrigeration apparatus according to the above embodiments of the present invention include a plate-like body and a plurality of fins. The plate-shaped body is provided with an inner space, and the fins are positioned in the inner space and used for dividing the inner space into a plurality of channels. The channel is used for introducing a refrigerant for heat exchange. The bottom surface of the plate-shaped body is provided with a convex part protruding outwards so as to form a lower groove corresponding to the inner space. The lower groove is adjacent to and communicated with one of the channels, and the bottom of the lower groove is lower than the bottom of the channel, so that the refrigerant oil of the refrigerant is contained to flow back. The fins are connected to the top and bottom surfaces, so that structural deformation such as expansion or depression of the heat exchanger caused by the pressure difference between the inside and the outside when the refrigerant is introduced into the channel can be avoided, and the volume of the channel and the flow rate of the refrigerant can be maintained. In addition, the design of the lower groove with the bottom lower than the channel is used for accommodating the refrigeration oil with higher specific gravity in the refrigerant, so that a channel for the liquid reflux of the refrigeration oil is provided, and the problem that the efficiency of the refrigerant is influenced is avoided.

Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.