CN108800703A - Semiconductor refrigerating equipment - Google Patents

Abstract

The invention discloses a semiconductor refrigeration device, which comprises a box shell and an inner tank arranged in the box shell, the inner tank is equipped with a semiconductor refrigeration module, and the semiconductor refrigeration module includes semiconductor refrigeration chips assembled together , a hot end radiator and a cold end radiator, the cold end radiator includes a cold end heat transfer seat and a first heat pipe connected to the cold end heat transfer seat, the first heat pipe is attached to the inner tank, the The hot end radiator includes a hot end heat transfer seat and a second heat pipe connected to the hot end heat transfer seat, the second heat pipe is provided with a plurality of heat dissipation fins, and one side of the heat dissipation fins is provided with a notch structure, A plurality of the notch structures form a mounting groove, and a cooling fan is arranged in the mounting groove. Improve the cooling efficiency of the refrigeration equipment and reduce energy consumption.

Description

semiconductor refrigeration equipment

technical field

The invention relates to refrigeration equipment, in particular to a semiconductor refrigeration equipment.

Background technique

At present, with the development of semiconductor refrigeration technology, refrigeration equipment using semiconductor refrigeration chips for refrigeration is widely used. Chinese Patent No. 2014107111772 discloses a semiconductor refrigeration equipment that uses the cooling capacity generated by semiconductor refrigeration chips to achieve refrigeration. The semiconductor refrigeration chip includes a cold end that releases cold energy and a hot end that releases heat. During operation, the cold end of the semiconductor refrigeration chip releases cold energy into the refrigeration compartment of the refrigeration device through the cold end radiator, and the semiconductor refrigeration The hot side of the chip needs to dissipate heat to the outside through the hot side heat sink. The hot-end radiator in the above-mentioned patent includes a hot-end heat transfer seat connected to the hot end of the semiconductor refrigeration chip, a heat pipe and fins, and a heat dissipation fan is arranged on the hot-end heat transfer seat. However, it is found during actual operation that the heat dissipation fan produces The wind enters between the fins through the through holes or gaps on the fins, and the wind direction will change by 90 degrees. The fins will generate a large wind resistance to the air flow, resulting in poor heat dissipation efficiency, which will cause the semiconductor refrigeration chip to appear refrigerated due to poor heat dissipation. The capacity decreases, and the overall energy consumption of the refrigeration equipment increases. How to design a refrigeration device with strong heat dissipation capability, high refrigeration efficiency and low energy consumption is the technical problem to be solved by the present invention.

Contents of the invention

The invention provides a semiconductor refrigeration device, which improves the heat dissipation capacity and refrigeration efficiency of the refrigeration device and reduces energy consumption.

In order to achieve the above-mentioned technical purpose, the present invention adopts the following technical solutions to realize:

A kind of semiconductor refrigeration equipment, comprising a box shell and an inner tank arranged in the box shell, the inner tank is equipped with a semiconductor refrigeration module, and the semiconductor refrigeration module includes semiconductor refrigeration chips assembled together, hot end heat dissipation radiator and a cold end radiator, the cold end radiator includes a cold end heat conduction seat and a first heat pipe connected to the cold end heat conduction seat, the first heat pipe is attached to the inner bag, and the hot end radiator It includes a hot-end heat-conducting seat and a second heat pipe connected to the hot-end heat-conducting seat. The second heat pipe is provided with a plurality of heat dissipation fins, and one side of the heat dissipation fin is provided with a gap structure. The notch structure forms a mounting groove, and a cooling fan is arranged in the mounting groove.

Further, a fan support is provided on the heat dissipation fan, and the fan support straddles the heat dissipation fins.

Further, a heat dissipation fin is arranged on the heat conduction base of the hot end.

Further, the semiconductor refrigeration module includes an assembly module, the assembly module includes a first heat insulation bracket and a second heat insulation bracket, the first heat insulation bracket is fixed on the second heat insulation bracket, and the An installation cavity is formed between the first heat insulation bracket and the second heat insulation bracket, the first heat insulation bracket is provided with an installation hole communicating with the installation cavity, and the semiconductor refrigeration chip is located in the installation hole , the cold end heat conduction seat is arranged in the installation cavity and is in contact with the cold end surface of the semiconductor refrigeration chip, and the hot end heat conduction seat is arranged on the first heat insulating support and is in contact with the semiconductor refrigeration chip hot end-face contact.

Further, the outer surface of the first heat insulation bracket is provided with a heat insulation groove around the installation hole, and heat insulation cotton is arranged in the heat insulation groove; the hot end of the semiconductor refrigeration chip protrudes outward from the Describe the outer surface of the first heat insulation bracket.

Further, the cold-end heat conduction seat is provided with an avoidance gap, the first heat insulation bracket, the second heat insulation support and the hot end heat conduction seat are respectively provided with through holes, and the bolts are passed through the corresponding In the through hole, the bolt passes through the area formed by the escape notch.

Further, the cold-end heat conduction seat includes a first heat conduction plate and a second heat conduction plate connected together; the inner surface of the first heat conduction plate is provided with a first mounting groove arranged transversely, and the second heat conduction plate The inner surface is provided with a second installation groove arranged longitudinally. The first heat pipe is divided into a horizontal flat heat pipe and a longitudinal flat heat pipe. The horizontal flat heat pipe is arranged in the first installation groove, and the longitudinal flat heat pipe is arranged in the In the second installation groove, and the horizontal flat heat pipe and the longitudinal flat heat pipe are in contact with each other.

Further, the inner surface of the first heat insulation bracket is provided with a first pipe groove for installing the first heat pipe, and the edge of the second heat insulation bracket is provided with a gap or a gap for the first heat pipe to pass through. Through hole or second pipe slot.

Further, the outer surface of the first heat insulating bracket is provided with a plurality of positioning baffles around the outside of the installation hole, and the heat conducting seat of the hot end is arranged between the plurality of positioning baffles.

Further, the semiconductor cooling module includes a plurality of semiconductor cooling chips, the assembly module is configured with the hot end heat transfer seat and the cold end heat transfer seat corresponding to the semiconductor cooling chips, and the The first heat insulation bracket is provided with the installation hole corresponding to the semiconductor cooling chip.

Compared with the prior art, the advantages and positive effects of the present invention are: by forming a notch structure in a plurality of heat dissipation fins, the notch structure forms an installation groove for installing a heat dissipation fan. During actual use, the heat dissipation fan sucks in The cold air can be transmitted through the channel formed between the two heat dissipation fins, so that the cold air can contact the fins for heat exchange to the greatest extent, effectively reduce wind resistance, improve heat dissipation efficiency, and improve the heat dissipation capacity of the refrigeration equipment and Cooling efficiency and reduced energy consumption.

The installation cavity formed between the two heat-insulating brackets is used to install the cold-end heat-conducting seat, so that the cold-end heat-conducting seat and the hot-end heat-conducting seat are effectively separated by the heat-insulating bracket, which can greatly reduce the contact between the cold-end heat-conducting seat and the hot-end heat-conducting seat. The amount of heat exchange generated between the hot-end heat transfer seats can effectively reduce the loss of cooling capacity, so as to improve the cooling efficiency of the refrigeration equipment and reduce energy consumption. At the same time, the semiconductor cooling chip is embedded in the installation hole of the first heat insulation bracket, while ensuring good contact between the cold end surface of the semiconductor cooling chip and the cold end heat transfer seat, and ensuring good contact between the hot end surface of the semiconductor cooling chip and the hot end heat transfer seat contact to ensure rapid heat dissipation and improve reliability in use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the semiconductor refrigeration equipment embodiment of the present invention;

Fig. 2 is the assembly diagram of the inner tank and the cold end radiator in the embodiment of semiconductor refrigeration equipment of the present invention;

Fig. 3 is a schematic structural view of a hot end radiator in an embodiment of a semiconductor refrigeration device of the present invention;

Fig. 4 is a structural schematic diagram of the semiconductor refrigeration module of the present invention;

Fig. 5 is a schematic view of the front structure of the first heat insulation bracket in the semiconductor refrigeration module of the present invention;

Fig. 6 is a schematic diagram of the reverse structure of the first heat insulation bracket in the semiconductor refrigeration module of the present invention;

Fig. 7 is a schematic diagram of the front structure of the second heat insulation bracket of the semiconductor refrigeration module of the present invention;

Fig. 8 is a schematic diagram of the back structure of the second heat insulation bracket in the semiconductor refrigeration module of the present invention;

9 is a schematic structural view of the first heat conducting plate in the semiconductor refrigeration module of the present invention;

Fig. 10 is a schematic structural view of the second heat conducting plate in the semiconductor refrigeration module of the present invention;

Fig. 11 is an exploded view of the semiconductor refrigeration module of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1-3, the semiconductor refrigeration equipment of this embodiment includes a box shell 200 and an inner tank 100 arranged in the box shell, the inner tank 100 is equipped with a semiconductor refrigeration module, and the semiconductor refrigeration module The group includes a semiconductor cooling chip assembled together, a hot end radiator and a cold end radiator, the cold end radiator includes a cold end heat transfer seat and a first heat pipe 2 connected to the cold end heat transfer seat, the first heat pipe 2 attached to the inner tank 100, the hot-end heat sink includes a hot-end heat transfer seat 33 and a second heat pipe 331 connected to the hot-end heat transfer seat 33, and the second heat pipe 331 is provided with a plurality of cooling fins A sheet 332, one side of the heat dissipation fin 332 is provided with a notch structure, and a plurality of the notch structures form a mounting groove, and a heat dissipation fan 333 is disposed in the mounting groove.

Specifically, the heat conduction seat 33 of the hot end in the semiconductor refrigeration device of this embodiment absorbs the heat released by the hot end surface of the semiconductor refrigeration chip and transfers it to the heat dissipation fin 332 through the second heat pipe 331, and the heat dissipation fin 332 is provided with a notch structure. The notch structure on each cooling fin 332 will form the installation groove that is used to install cooling fan 333, makes cooling fan 333 be embedded in the plurality of cooling fins 332, like this, in cooling fan 333 operation process, cooling fan 333 inhales the outside world After the cold air, the cold air will flow through the space formed between two adjacent fins 332, so that the cold air contacts with the surface of the fins 332 for heat exchange, because the array direction of the fins 332 and the airflow direction Consistent, the airflow resistance is effectively reduced, the heat exchange efficiency is higher, and the cooling fin 332 has a larger heat dissipation per unit time. Wherein, the cooling fan 333 may be a centrifugal fan, and the centrifugal fan sucks the outside air along its axial direction and blows out the air formed between the cooling fins 332 . In addition, in order to facilitate the installation of the cooling fan 333, the cooling fan 333 is provided with a fan bracket 3331, and the fan bracket 3331 straddles the cooling fins 332. Specifically, the fan bracket 3331 can span multiple cooling fins 332, Between the fans 3331 and the cooling fins 332 are fixed by bolts, so that the cooling fan 333 is assembled. Preferably, a heat sink (not shown) is provided on the hot-end heat-conducting seat 33 , and the heat of the hot-end heat-conducting seat 33 is further rapidly dissipated by using the heat sink.

In this embodiment of semiconductor refrigeration equipment, a gap structure is formed in a plurality of cooling fins, and the gap structure forms an installation groove for installing a cooling fan. During actual use, the cold air sucked by the cooling fan can pass through the two cooling fins. The channels formed between the fins are transmitted, so that the cold air can contact the fins to the greatest extent for heat exchange, effectively reduce wind resistance, improve heat dissipation efficiency, improve the heat dissipation capacity and cooling efficiency of refrigeration equipment, and reduce energy consumption.

Further, in order to improve the cooling efficiency more effectively, as shown in Figure 1-Figure 11, the semiconductor refrigeration module also includes an assembly module 3, and the assembly module 3 includes a first heat insulation bracket 31 and a second heat insulation bracket 32, A first groove 311 is provided on the inner surface of the first heat insulation bracket 31, and a mounting hole 312 penetrating through the first heat insulation bracket 31 is opened in the first groove 311. The inner surface of the support 32 is provided with a second groove 321, the first heat insulating support 31 is fixed on the second heat insulating support 32, between the first groove 311 and the second groove 321 An installation cavity is formed, the semiconductor cooling chip 1 is located in the installation hole 312, the cold end heat conduction seat 34 is arranged in the installation cavity and contacts the cold end surface of the semiconductor cooling chip 1, and the thermal The end heat conduction seat 33 is arranged on the first heat insulating bracket 31 and is in contact with the hot end surface of the semiconductor cooling chip 1 , and the first heat pipe 2 is connected to the cold end heat conduction seat 34 .

Specifically, in the semiconductor cooling module of this embodiment, the semiconductor cooling chip 1 is embedded in the mounting hole 312 of the first heat insulation bracket 31, and the periphery of the semiconductor cooling chip 1 is wrapped by the first heat insulation bracket 31, and, through the second A heat insulating bracket 31 separates the hot-end heat transfer seat 33 from the cold-end heat transfer seat 34, which can effectively reduce the amount of heat transfer generated between the hot-end heat transfer seat 33 and the cold-end heat transfer seat 34, thereby reducing the heat transfer rate of the cold-end heat transfer seat 34. At the same time, the cold end heat conduction seat 34 is wrapped in the installation cavity with temperature insulation function formed by the first heat insulation support 31 and the second heat insulation support 32, and the semiconductor heat conduction of the cold end heat conduction seat 34 The cooling capacity generated by the cooling chip 1 can be quickly transferred to the required area through the heat pipe 2 to the maximum extent, thereby reducing the loss of cooling capacity of the cold-end heat transfer seat 34 itself, and more effectively reducing energy consumption and improving cooling efficiency.

Preferably, the outer surface of the first heat insulation bracket 31 is provided with a heat insulation groove 313 around the installation hole 312, and heat insulation cotton (not marked) is arranged in the heat insulation groove 313; The end surface protrudes outward from the outer surface of the first heat insulating bracket 31 . Specifically, heat insulation cotton can be arranged on the periphery of the semiconductor refrigeration chip 1 through the heat insulation groove 313, so that the thermal insulation ring formed by the heat insulation cotton can further reduce the cooling loss of the cold end surface of the semiconductor refrigeration chip 1. At the same time, it can also Reduce the heat of the hot end surface of the semiconductor refrigeration chip 1 into the installation cavity, and reduce the loss of cooling to the greatest extent; while the hot end surface of the semiconductor refrigeration chip 1 is slightly higher than the outer surface of the first heat insulating bracket 31, on the one hand, the semiconductor refrigeration chip The hot end surface of the chip 1 and the hot end heat conduction seat 33 can conduct heat in good contact. On the other hand, the hot end surface of the semiconductor refrigeration chip 1 breaks away from the mounting hole 312, which can reduce heat from the mounting hole 312 into the mounting cavity. Effectively reduce the loss of cooling capacity. Wherein, in order to facilitate circuit wiring connection, a wiring groove 314 is further provided on the outer surface of the first heat insulating bracket 31 , and the wiring groove 314 communicates with the installation hole 312 . In addition, according to the cooling capacity requirements of the refrigeration equipment, the semiconductor cooling module of this embodiment includes a plurality of semiconductor cooling chips 1, and the assembly module 3 is equipped with the hot end heat transfer seat 33 corresponding to the semiconductor cooling chips 1 and the cold end heat conduction seat 34 , and the first heat insulating bracket 31 is provided with the installation hole 312 corresponding to the semiconductor cooling chip 1 .

Further, in order to more effectively reduce the heat transfer between the hot end heat transfer seat 33 and the cold end heat transfer seat 34 due to assembly, an avoidance gap 340 is provided on the cold end heat transfer seat 34, and the first heat insulating bracket 31, The second heat insulating bracket 32 and the hot-end heat transfer seat 33 are respectively provided with through holes (unmarked), the bolts 35 are passed through the corresponding through holes, and the bolts 35 pass through the avoidance gaps 340 formed by the area. Specifically, during the assembly process, the hot-end heat transfer seat 33, the first heat-insulating bracket 31, the cold-end heat-conducting seat 34, and the second heat-insulating bracket 32 are sequentially assembled and fixed together by bolts 35, and the bolts 35 avoid The notch 340 avoids opening the cold-end heat transfer seat 34 , thereby avoiding heat exchange between the hot-end heat transfer seat 33 and the cold-end heat transfer seat 34 through the bolt 35 . Wherein, the inner surface of the first heat insulating support 31 is provided with a first pipe groove 316 and a first pipe groove 317 for installing the first heat pipe 2, and the edge of the second heat insulating support 32 is provided with a pipe groove for all heat pipes. The gap or the through hole 322 or the second pipe groove through which the first heat pipe 2 passes. Specifically, the heat pipe 2 passes out of the assembly module 3 through the first pipe groove 316 and the first pipe groove 317 in cooperation with the through hole 322, so that the heat pipe 2 is conveniently arranged on the inner tank 100 of the refrigeration device. In addition, in order to facilitate quick positioning and installation of the hot-end heat transfer seat 33, the outer surface of the first heat insulating bracket 31 is provided with a plurality of positioning baffles 315 around the outside of the installation hole 312, and the hot-end heat transfer seat 33 is arranged on a plurality of between the positioning baffles 315 . During assembly, the hot-end heat-conducting seat 33 can be conveniently positioned and installed by the positioning baffle 315 , and it is ensured that the hot-end heat-conducting seat 33 can accurately contact the semiconductor cooling chip 1 well.

Still further, the cold end heat conduction base 34 includes a first heat conduction plate 341 and a second heat conduction plate 342 connected together, and the first heat pipe 2 is sandwiched between the first heat conduction plate 341 and the second heat conduction plate Between 342. Specifically, the inner surface of the first heat conduction plate 341 is provided with a first installation groove 3411 arranged horizontally, and the inner surface of the second heat conduction plate 342 is provided with a second installation groove 3421 arranged vertically. It is a transverse flat heat pipe and a longitudinal flat heat pipe, the transverse flat heat pipe is arranged in the first installation groove 3411, the longitudinal flat heat pipe is arranged in the second installation groove 3421, and the transverse flat heat pipe and the The longitudinal flat heat pipes are in contact with each other. Specifically, the use of flat heat pipes can effectively increase the contact area between the heat pipes and the cold-end heat transfer seat 34 , and at the same time, the flat heat pipes can also effectively increase the contact area with the inner tank 100 to improve heat exchange efficiency. Moreover, the horizontal flat heat pipes and the longitudinal flat heat pipes are in contact with each other, so that the temperature distribution of the heat pipes at different positions is uniform, and the temperature difference is reduced to improve temperature uniformity.

The cold end heat transfer seat is installed by using the installation cavity formed between the two heat insulation brackets, so that the cold end heat transfer seat and the hot end heat transfer seat are effectively separated by the heat insulation bracket, so that the cold end heat transfer seat can be greatly reduced The amount of heat exchange generated between the hot-end heat transfer seat can effectively reduce the loss of cold energy, so as to improve the cooling efficiency of the refrigeration equipment and reduce energy consumption. At the same time, the semiconductor cooling chip is embedded in the installation hole of the first heat insulation bracket, while ensuring good contact between the cold end surface of the semiconductor cooling chip and the cold end heat transfer seat, and ensuring good contact between the hot end surface of the semiconductor cooling chip and the hot end heat transfer seat contact to ensure rapid heat dissipation and improve reliability in use.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A semiconductor refrigeration device, comprising a casing and an inner container arranged in the casing, the inner container is equipped with a semiconductor refrigeration module, and the semiconductor refrigeration module includes a semiconductor refrigeration chip assembled together, a heat sink end radiator and cold end radiator, the cold end radiator includes a cold end heat conduction seat and a first heat pipe connected to the cold end heat conduction seat, the first heat pipe is attached to the liner, and the hot end The radiator includes a hot-end heat conduction seat and a second heat pipe connected to the hot-end heat conduction seat. The second heat pipe is provided with a plurality of heat dissipation fins. It is characterized in that one side of the heat dissipation fin is provided with a gap structure, a plurality of the notch structures form a mounting groove, and a cooling fan is arranged in the mounting groove. 2 . The semiconductor refrigeration device according to claim 1 , wherein a fan support is provided on the heat dissipation fan, and the fan support straddles the heat dissipation fins. 3 . 3 . The semiconductor refrigeration device according to claim 1 , wherein a heat sink is provided on the heat conducting seat of the hot end. 4 . 4. The semiconductor refrigeration device according to claim 1, wherein the semiconductor refrigeration module includes an assembly module, the assembly module includes a first heat insulation bracket and a second heat insulation bracket, and the first heat insulation bracket The bracket is fixed on the second heat insulation bracket, an installation cavity is formed between the first heat insulation bracket and the second heat insulation bracket, and the first heat insulation bracket is provided with a hole communicating with the installation cavity. The installation hole, the semiconductor refrigeration chip is located in the installation hole, the cold end heat conduction seat is arranged in the installation cavity and is in contact with the cold end surface of the semiconductor refrigeration chip, and the hot end heat conduction seat is arranged in the installation hole on the first heat insulating bracket and in contact with the hot end surface of the semiconductor cooling chip. 5. The semiconductor refrigeration device according to claim 4, characterized in that, the outer surface of the first heat insulation bracket is provided with a heat insulation groove around the installation hole, and heat insulation cotton is arranged in the heat insulation groove; The hot end surface of the semiconductor cooling chip protrudes outward from the outer surface of the first heat insulating support. 6. The semiconductor refrigeration device according to claim 4, wherein an avoidance gap is provided on the cold end heat transfer seat, and the first heat insulation bracket, the second heat insulation bracket and the hot end heat conduction The seats are respectively provided with through holes, and the bolts are passed through the corresponding through holes, and the bolts pass through the area formed by the escape notch. 7. The semiconductor refrigeration device according to claim 4, wherein the cold end heat conduction seat comprises a first heat conduction plate and a second heat conduction plate connected together; the inner surface of the first heat conduction plate is provided with transverse The first installation groove is provided, the inner surface of the second heat conduction plate is provided with a second installation groove arranged vertically, the first heat pipe is divided into a horizontal flat heat pipe and a longitudinal flat heat pipe, and the horizontal flat heat pipe is arranged on the In the first installation groove, the longitudinal flat heat pipe is disposed in the second installation groove, and the transverse flat heat pipe and the longitudinal flat heat pipe are in contact with each other. 8. The semiconductor refrigeration device according to claim 4, characterized in that, the inner surface of the first heat insulation bracket is provided with a first pipe groove for installing the first heat pipe, and the inner surface of the second heat insulation bracket The edge is provided with a notch or a through hole or a second pipe groove for the first heat pipe to pass through. 9. The semiconductor refrigeration device according to claim 4, wherein the outer surface of the first heat insulating bracket is provided with a plurality of positioning baffles around the outside of the installation hole, and the heat transfer seat of the hot end is arranged on Between the plurality of positioning baffles. 10. The semiconductor refrigeration device according to claim 4, wherein the semiconductor refrigeration module includes a plurality of semiconductor refrigeration chips, and the assembly module is configured with the hot end corresponding to the semiconductor refrigeration chips. The heat conduction seat and the cold end heat conduction seat, and the first heat insulation bracket is provided with the installation hole corresponding to the semiconductor cooling chip.