Heat dissipation device and refrigerator

Abstract

The invention relates to a heat dissipation device and a refrigerator. The heat dissipation device comprises an evaporation disc, the evaporation disc is provided with a containing cavity, the containing cavity comprises a water storage area and a heat dissipation area, the water storage area is used for bearing low-temperature defrosting condensate water, and the heat dissipation area is provided with an air inlet; a condensation assembly is arranged above the air inlet and comprises a heat exchanger, a condenser and a condensation fan which are sequentially stacked from bottom to top; an inlet of the heat exchanger communicates with the water storage area, condensate water in the water storage area is configured to flow to a heat exchange pipe in the heat exchanger, an outlet of the heat exchange pipe communicates with the condenser, condensate water in the heat exchange pipe is configured to flow back to the containing cavity, the condensation fan is used for accelerating heat dissipation, and an air outlet is formed in the upper portion of the condensation fan; the water storage area comprises a condensate water area and a water return area spaced from the condensate water area, the condensate water area and the water return area are spliced together to form the water storage area, the condensate water area is used for bearing low-temperature defrosting condensate water, and the water return area is used for receiving heat exchange liquid flowing out of a water outlet of the heat exchanger.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigerators with heat dissipation devices, in particular to a heat dissipation device and a refrigerator. BACKGROUND

[0002] In the setting system of the embedded refrigerator, the compressor is the power core of the refrigerant circulation, and the condenser jointly undertakes the key function of heat exchange. The two are usually integrated and installed in the compressor warehouse to meet the requirement of compactness of the whole equipment structure. However, due to the space constraint in the embedded installation scene, the layout in the compressor warehouse faces severe challenges. The arrangement of the compressor, the condenser and the heat dissipation fan and other key components is often dense and complex, which blocks the air flow path and causes poor heat dissipation channel, significantly restricting the overall heat dissipation efficiency. In high temperature environment, the above-mentioned heat dissipation bottleneck problem is more prominent: a large amount of heat generated during the operation of the compressor is difficult to be discharged in time through the existing heat dissipation structure, which is easy to cause local high temperature accumulation in the compressor warehouse. The continuous high temperature environment not only accelerates the aging and loss of the internal parts of the compressor, shortens the service life of the equipment, but also causes the power consumption of the compressor to rise, thereby reducing the overall energy efficiency ratio of the embedded refrigerator, which is contrary to the current energy saving and environmental protection industry development trend. At the same time, in the setting of the traditional embedded refrigerator, the condensate water as the byproduct of the refrigeration process is usually directly discharged or collected by a simple water receiving device and then naturally evaporated, without utilizing the low-temperature cold energy contained in the condensate water, missing the potential opportunity of energy saving and efficiency improvement through secondary heat exchange. In order to improve the above-mentioned waste of condensate water, in the existing solution, a refrigeration equipment technical scheme for recycling condensate water is proposed, which directly sprays the condensate water collected by the water receiving tray on the surface of the condenser to utilize the low-temperature characteristics of the condensate water to cool the condenser, thereby realizing the resource utilization of the condensate water to a certain extent. However, this scheme has obvious defects: since the condensing fan and the condenser are installed in a cooperative structure, and the fan is an electrical component, the directly sprayed condensate water is easy to contact the electrical connection part of the fan, which has the risk of causing short circuit failure of the fan, resulting in the decrease of the operation reliability of the equipment, which is difficult to meet the actual use requirement of the embedded refrigerator. In view of the deficiencies of the existing embedded refrigerator compressor warehouse in heat dissipation efficiency, condensate water utilization and operation reliability, a new heat dissipation technical scheme is needed to break through the current technical bottleneck. SUMMARY

[0003] The present application provides a heat dissipation device and a refrigerator to solve the technical problem of the deficiencies of the existing embedded refrigerator compressor warehouse in heat dissipation efficiency, condensate water utilization and operation reliability.

[0004] The heat dissipation device comprises an evaporation disc, the evaporation disc has a containing cavity, the containing cavity comprises a water storage area and a heat dissipation area, the water storage area is used for carrying condensed water of low-temperature defrosting, and the heat dissipation area has an air inlet; a condensation assembly is arranged above the air inlet, the condensation assembly comprises a heat exchanger, a condenser and a condensation fan which are sequentially stacked from bottom to top; the inlet of the heat exchanger is communicated with the water storage area, the condensed water in the water storage area is configured to flow into heat exchange pipes in the heat exchanger, the outlet of the heat exchange pipes is communicated with the condenser, the condensed water in the heat exchange pipes is configured to flow back to the containing cavity, and the condensation fan is used for accelerating heat dissipation, and an air outlet is arranged above the condensation fan. The water storage area comprises a condensed water area and a return water area which is arranged in a spaced manner with the condensed water area, the condensed water area and the return water area are spliced to jointly form the water storage area, the condensed water area is used for carrying condensed water of low-temperature defrosting, and the return water area is used for receiving heat exchange liquid flowing out of the outlet of the heat exchanger.

[0005] The heat exchanger comprises a coil pipe, a heat dissipation fin, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged in a spaced manner, and a containing space for mounting the coil pipe and the heat dissipation fin is formed between the first clamping plate and the second clamping plate, the coil pipe is arranged in a stacked manner along the longitudinal direction, and a layer of the heat dissipation fin is arranged between adjacent two layers of the coil pipe.

[0006] The water inlet of the coil pipe is formed in the first clamping plate and communicated with the water storage area through a first pipeline, a driving pump is further arranged between the first pipeline and the water storage area, and the driving pump is used for pumping the condensed water in the water storage area into the coil pipe through the first pipeline.

[0007] The water outlet of the coil pipe is formed in the second clamping plate, and the horizontal installation position of the water outlet is lower than that of the water inlet.

[0008] The evaporation disc is provided with a partition rib, the partition rib is formed on the bottom surface of the containing cavity, and the partition rib is used for dividing the evaporation disc into the water storage area and the heat dissipation area.

[0009] The heat dissipation device comprises a shell member, the shell member covers the outer periphery of the heat exchanger, the condenser and the condensation fan, and forms a transverse air outlet above the condensation fan.

[0010] The shell member comprises a first shell and a second shell, the second shell has the transverse air outlet, the second shell is detachably connected above the first shell, and the first shell covers the outer periphery of the heat exchanger, the condenser and the condensation fan.

[0011] The first shell inner wall is provided with a temperature sensor corresponding to the position area of the condensing pipe in the condenser, and the heat dissipation device is provided with a control system electrically connected with the temperature sensor.

[0012] The refrigerator provided by the application comprises the heat dissipation device and a press machine bin.

[0013] Compared with the prior art, the technical scheme provided by the application has the following advantages: The heat dissipation device and the refrigerator provided by the application separate the functions of the water storage area and the heat dissipation area by using the partition structure of the evaporation disc, and the low-temperature defrosting condensate collected by the water storage area is introduced into the heat exchanger as a natural cold source to realize the precooling effect through the circulation of the heat exchange pipe, so that the wasted cold energy resources in the traditional structure are recycled and utilized, and the heat load of the subsequent condensing link is reduced, thereby reducing the additional energy consumption of the system. It should be pointed out that the water storage area in the application comprises a condensate water area and a return water area, wherein the condensate water area and the return water area are spliced to form the water storage area together, the condensate water area is used for bearing the condensate water of the low-temperature defrosting, and the return water area is used for bearing the heat exchange liquid flowing out of the water outlet of the heat exchanger; at the same time, the closed loop scheme of the condensate water flowing back to the containing cavity avoids the waste of water resources and forms a sustainable heat dissipation auxiliary mechanism.

[0014] In addition, the condensing assembly adopts a vertical stacking layout of the heat exchanger, the condenser and the fan from bottom to top, cooperates with the spliced condensing air duct, and builds a directional airflow path from the air inlet to the air outlet. This vertical arrangement not only significantly reduces the equipment footprint compared with the traditional horizontal structure, meets the application requirements of compact space, but also enhances the air turbulence and improves the heat exchange coefficient by combining forced convection and natural convection. The fan is arranged above the condenser to form an air extraction effect, and forms an orderly air circulation with the bottom air inlet, so that cold air efficiently flows through the heat exchanger and the condenser in turn, maximizes the utilization rate of the heat exchange area, reduces the system pressure drop loss, and finally realizes the balance between heat dissipation efficiency and energy consumption optimization through structural cooperation. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the application and, together with the specification, serve to explain the principles of the application.

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows, and obviously, other accompanying drawings can also be obtained by those skilled in the art without creative labor.

[0017] One or more embodiments are illustrated by way of example in the drawings in which like reference numerals indicate similar elements, and as such, the drawings should be considered for purposes of illustration only. The drawings are not necessarily to scale, with emphasis being placed on illustrating the principles of the embodiments.

[0018] Figure 1 Structure diagram of the heat dissipation device provided by the embodiment of the present application installed in the compressor chamber of the refrigerator; Figure 2 Structure diagram of the shaft side of the heat dissipation device provided by the embodiment of the present application; Figure 3 Structure diagram of the evaporating disc in the heat dissipation device provided by the embodiment of the present application; Figure 4 Structure diagram of the layout of the condensing assembly relative to the evaporating disc in the heat dissipation device provided by the embodiment of the present application; Figure 5 Structure diagram of the shaft side of the heat exchanger in the heat dissipation device provided by the embodiment of the present application; Figure 6 Structure diagram of the heat dissipation device provided by the embodiment of the present application installed in the compressor chamber; Figure 7 Flow direction diagram of the air in the heat dissipation device provided by the embodiment of the present application, in which the air enters from the bottom of the compressor chamber, passes through the air inlet of the evaporating disc, is discharged from the air outlet above the condensing assembly, and then flows to the compressor.

[0019] Legend of reference numerals: 1, heat dissipation device; 11, evaporating disc; 111, containing cavity; 1111, water storage area; 1111A, condensate area; 1111B, backwater area; 1112, heat dissipation area; 112, partition rib; A, air inlet; 2, condensing assembly; 21, heat exchanger; 21A, water inlet; 211, coil pipe; 212, heat dissipation fin; 213, first clamping plate; 214, second clamping plate; 21B, water outlet; 22, condenser; 23, condensing fan; 24, driving pump; B, air outlet; C, condensing air duct; 3, shell member; 31, first shell; 32, second shell; 4, refrigerator; 41, compressor chamber; 5, compressor; 6, sealing sleeve. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the elements of the particular examples are described in the following disclosure. Of course, they are merely examples and are not intended to limit the present application. Furthermore, reference numerals and / or letters can be repeated in different examples of the present application. Such repetition is for the purpose of simplification and clarity and is not itself indicative of a relationship between the various embodiments and / or arrangements discussed.

[0022] For ease of description, spatial relative terms can be used in the description to describe the relative position relationship or movement of one element or feature to another element or feature as shown in the drawings, such as "inner", "outer", "inboard", "outboard", "under", "below", "on", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawings is flipped over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" another element or feature will then be oriented as "above" or "above" another element or feature. Therefore, the example term "below" can include both up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptions used in the text will be interpreted accordingly.

[0023] The heat dissipation device provided by the embodiment of the present application can provide heat dissipation assistance in the compressor chamber position of the refrigerator, and can apply the condensed water of the low-temperature defrosting of the refrigerator. Based on the corresponding structure, the condensed water is delivered into the pipeline of the heat exchanger, combined with the rotation of the condensing fan, a through condensing air duct is formed in the heat dissipation device, and the air is discharged after being heated. In this way, the condensed water can be applied in an orderly environment to assist the heat dissipation of the condenser. It can be applied to any application scenario that needs condenser heat dissipation. The specific structure of the present application will be described in detail below by taking the application of the heat dissipation device in the refrigerator as an example.

[0024] Reference Figures 1-7The heat dissipation device 1 provided by the embodiment of the present application comprises an evaporation disc 11, the evaporation disc 11 has a containing cavity 111, the containing cavity 111 comprises a water storage area 1111 and a heat dissipation area 1112, the water storage area 1111 is used for bearing the condensed water of low-temperature defrosting, the heat dissipation area 1112 has an air inlet A; a condensation assembly 2 is arranged above the air inlet A, the condensation assembly 2 comprises a heat exchanger 21, a condenser 22 and a condensation fan 23 which are arranged in a stack from bottom to top; the inlet of the heat exchanger 21 is communicated with the water storage area 1111, the condensed water in the water storage area 1111 is configured to flow into the heat exchange pipe of the heat exchanger 21, the outlet of the heat exchange pipe is communicated with the water storage area 1111, the condensed water in the heat exchange pipe is configured to flow back to the containing cavity 111, the condensation fan 23 is used for accelerating heat dissipation, and an air outlet B is arranged above the condensation fan 23.

[0025] In this way, the partition structure of the evaporation disc 11 is applied to separate the functions of the water storage area 1111 and the heat dissipation area 1112, the low-temperature defrosting condensed water collected by the water storage area 1111 is introduced into the heat exchanger 21 as a natural cold source, and the precooling effect is achieved through the circulation flow of the heat exchange pipe, so that the cold energy resources wasted in the traditional structure are recycled and utilized, and the heat load of the subsequent condensation link is reduced, and the additional energy consumption of the system can be reduced. Meanwhile, the closed loop scheme that the condensed water flows back to the containing cavity 111 avoids the waste of water resources and forms a sustainable heat dissipation auxiliary mechanism. In addition, the heat exchanger 21, the condenser 22 and the fan are vertically stacked from bottom to top, and the condensation air duct C is spliced up and down, so that the directional airflow path from the air inlet A to the air outlet B is constructed. This vertical arrangement not only significantly reduces the equipment area compared with the traditional horizontal structure, meets the application requirements of compact space, but also enhances the air turbulence and improves the heat exchange coefficient through the combination of forced convection and natural convection. The fan is arranged above the condenser 22 to form an air extraction effect, and the orderly air circulation is formed with the air inlet at the bottom, so that the cold air efficiently flows through the heat exchanger 21 and the condenser 22 in turn, the utilization rate of the heat exchange area is maximized, the system pressure loss is reduced, and finally the balance between the heat dissipation efficiency and the energy consumption optimization is realized through the structure cooperation.

[0026] Specifically, based on the functional partition of the evaporation disc 11, the condensed water of low-temperature defrosting can be stored, and the low temperature of the condensed water is applied to perform secondary cooling on the condenser 22, and the relatively low-temperature gas in the condensation air duct C can also be discharged to one side of the compressor 5 of the compressor chamber 41 of the refrigerator 4.

[0027] It should be noted that the heat dissipation device 1 is divided into a water storage area 1111 and a heat dissipation area 1112 through the evaporation disc 11, wherein the structure of the water storage area 1111 is on one side of the water storage area 1111 of the evaporation disc 11, and the structure of the heat dissipation area 1112 includes not only the heat dissipation area 1112 of the evaporation disc 11, but also the condensation assembly 2 arranged above the air inlet A of the heat dissipation area 1112. In the heat dissipation device 1, a heat exchanger 21 is additionally arranged, the inlet of the heat exchanger 21 is in communication with the water storage area 1111 and the condenser 22, the low-temperature defrosting condensate water collected in the water storage area 1111 can flow into the heat exchange pipe of the heat exchanger 21, and the low-temperature defrosting condensate water is used to pre-cool the subsequent air flow entering the heat dissipation area 1112. The pre-cooled air flow enters the evaporation disc 11 from the air inlet A of the heat dissipation area 1112 under the pumping action of the condensation fan 23, and sequentially flows through the heat exchanger 21 and the condenser 22 stacked from bottom to top. In this process, the low-temperature heat exchange pipe of the heat exchanger 21 and the condenser 22 are fully heat exchanged, and the condensation heat is taken away. The condensate water in the heat exchange pipe, which has completed the pre-cooling function, flows back to the containing cavity 111 of the evaporation disc 11 to form a closed loop circulation, so as to avoid water loss.

[0028] At the same time, the vertical stacking layout of the condensation assembly 2 cooperates with the upper and lower spliced condensation air duct C to build a directional air flow path. The heat-exchanged air flow is finally discharged from the air outlet B above the condensation fan 23. Due to the pre-cooling of the condensate water and the heat exchange treatment of the condenser 22, the temperature of the discharged gas is relatively low, and the discharged gas can be directly guided to the side of the compressor 5 of the compressor chamber 41 of the refrigerator 4 to assist the heat dissipation of the compressor 5 and further improve the operation efficiency of the overall refrigeration system.

[0029] Considering the specific structure scheme of the heat exchanger 21, in the heat dissipation device 1 provided by the embodiment of the present disclosure, the heat exchanger 21 includes a coil pipe 211, a heat dissipation fin 212, a first clamping plate 213 and a second clamping plate 214. The first clamping plate 213 and the second clamping plate 214 are oppositely arranged and have a containing space for mounting the coil pipe 211 and the heat dissipation fin 212 therebetween. The coil pipe 211 is longitudinally stacked in multiple layers, and a layer of heat dissipation fin 212 is arranged between adjacent two layers of coil pipe 211.

[0030] For example, the first clamping plate 213 and the second clamping plate 214 can be constructed as a sheet metal combined structure, which can be a plate structure, or a support structure added to the plate structure. The specific structure of the support structure is not limited in the embodiment of the present application. The support structure can be a single structural component or a plurality of structural components combined to realize the support function.

[0031] In this way, the heat exchanger 21 realizes efficient heat exchange through the combination of the clamping plate positioning, the coil 211 stacking and the fin spacing. Specifically, the first clamping plate 213 and the second clamping plate 214 are oppositely arranged to form a containing space, which provides a stable mounting carrier for the coil 211 and the heat dissipation fin 212, and ensures that the two do not deviate in the heat exchange process. The coil 211 is arranged in a longitudinal direction and stacked layer by layer, so that the low-temperature fluid, i.e., the condensed water in the water storage area 1111, can flow along the multiple layers of the coil 211 in sequence, thereby prolonging the residence path of the fluid in the heat exchanger 21. Meanwhile, a layer of heat dissipation fin 212 is arranged between any two adjacent layers of the coil 211, and the fin is attached to the surface of the coil 211 to form an alternating arrangement structure of the coil 211, the fin and the coil 211. When the airflow enters the containing space of the heat exchanger 21 from the air inlet A of the heat dissipation area 1112 of the evaporation disc 11, it will fully contact the multiple layers of the coil 211 and the spaced heat dissipation fins 212. The low-temperature fluid in the coil 211 transfers cold energy to the heat dissipation fin 212 through the tube wall, and then the fin expands the heat exchange contact area with the airflow, thereby realizing efficient transfer of cold energy to the airflow. The fluid that has completed heat exchange flows out of the outlet of the coil 211, enters the subsequent condensation link, flows to one side of the compressor 5 or returns to the evaporation disc 11. The possible scenario of returning to the evaporation disc 11 depends on the special application scenario.

[0032] Considering the formation scheme of the water inlet 21A of the coil 211, in the heat dissipation device 1 provided by the embodiment of the present disclosure, the water inlet 21A of the coil 211 is formed on the first clamping plate 213 and is communicated with the water storage area 1111 through a first pipeline. A driving pump 24 is further arranged between the first pipeline and the water storage area 1111, and the driving pump 24 is used to pump the condensed water in the water storage area 1111 into the coil 211 through the first pipeline.

[0033] In this way, the water inlet 21A of the coil 211 is directly formed on the first clamping plate 213 of the heat exchanger 21, so that the water inlet interface is integrated with the main body structure of the heat exchanger 21. The water inlet 21A is in fluid communication with the water storage area 1111 of the evaporation disc 11 through the first pipeline, and the driving pump 24 is arranged in series between the first pipeline and the water storage area 1111. When the heat dissipation device 1 is running, the driving pump 24 is started and generates power to pressurize the low-temperature defrosting condensed water stored in the water storage area 1111, and then the condensed water is delivered to the water inlet 21A of the coil 211 on the first clamping plate 213 through the first pipeline, so that the condensed water flows into the coil 211 in an orderly manner, thereby providing a continuous low-temperature cold source for the heat exchange between the heat exchanger 21 and the airflow. After the condensed water completes the heat exchange in the coil 211, it flows out of the outlet of the coil 211, realizing recycling or returning.

[0034] For example, the driving pump 24 can be installed at the bottom of the evaporation disc 11, or according to the requirements of the application scenario, the driving pump 24 can also be installed in the delivery pipeline.

[0035] Specifically, the application of the drive pump 24 can actively overcome the flow obstacles caused by the pipeline resistance, the resistance along the coil 211, and the height difference, ensuring that the condensed water enters the coil 211 at a stable flow rate and pressure, avoiding fluctuations in the heat exchange capacity of the heat exchanger 21 due to insufficient water supply, and being particularly suitable for scenarios where the coil 211 has a large number of vertically stacked layers or the pipeline has bends.

[0036] In addition, the water inlet 21A of the coil 211 is directly formed on the first clamping plate 213, so that the water inlet interface is integrated with the clamping plate support structure of the heat exchanger 21, without the need for additional welding of a separate interface on the coil 211 or the use of a transition connector, thereby reducing the number of sealing nodes and reducing the risk of interface leakage. At the same time, this integrated arrangement allows the first pipeline to be directly connected to the first clamping plate 213, simplifying the pipeline assembly process and improving the compactness of the overall structure.

[0037] It should be noted that the delivery rate of the condensed water can be flexibly adjusted by the drive pump 24, which can dynamically match the supply amount of the cold source in the coil 211 according to the actual heat load of the heat dissipation device 1, ensuring that the heat exchanger 21 is always in a high-efficiency heat exchange state, thereby stably exerting the pre-cooling effect on the airflow entering the condenser 22, and indirectly improving the heat dissipation stability and energy efficiency of the entire heat dissipation system.

[0038] For example, the actual heat load can be one of the temperature or airflow flow rate changes of the condenser 22.

[0039] Considering that the condensed water can form a high-opening and low-exit scheme in the heat exchanger 21, in the heat dissipation device 1 provided by the present disclosure, the water outlet 21B of the coil 211 is formed on the second clamping plate 214, and the horizontal installation position of the water outlet 21B is lower than that of the water inlet 21A.

[0040] In this way, the water inlet 21A of the coil 211 is formed on the first clamping plate 213, and the water outlet 21B is formed on the second clamping plate 214, and the horizontal installation position of the water outlet 21B is lower than that of the water inlet 21A, so that the internal flow channel of the coil 211 as a whole presents an inclined trend from high to low. In combination with the drive pump 24 set in advance, the low-temperature condensed water in the water storage area 1111 is pressurized by the drive pump 24, then delivered to the water inlet 21A on the first clamping plate 213 through the first pipeline, and enters the coil 211. Under the dual driving of the power of the drive pump 24 and the gravitational potential energy formed by the height difference between the water inlet 21A and the water outlet 21B, the condensed water orderly flows along the high-opening and low-exit flow channel of the coil 211, fully exchanges heat with the airflow outside the coil 211 in the process, and the condensed water after absorbing heat finally flows out from the water outlet 21B on the second clamping plate 214 which is at a lower position, and then returns to the evaporation disc 11 or enters the subsequent condensation link. This scheme can guide the condensed water to naturally fill the internal flow channel of the coil 211, avoiding water flow stagnation caused by a flat or locally protruding flow channel.

[0041] Specifically, regarding the horizontal height difference of the high-low run, the gravity is used to assist the driving of the condensate water flow, which can effectively reduce the operating load of the driving pump 24, and the condensate water can be pushed to fill the coil 211 and flow smoothly without the need for the pump to provide excessive pressure, thereby reducing energy consumption and prolonging the service life of the driving pump 24. At the same time, gravity driving can avoid the formation of air locks or dead water areas in the coil 211, ensuring the continuity of the condensate water flow. Further, the condensate water can fully fill the flow channel of the coil 211 under the synergistic action of gravity and pump force, eliminating air bubbles or non-contact areas in the coil 211, so that the inner wall of the coil 211 is in full contact with the condensate water, and the heat transfer efficiency is improved. In addition, the high-low directional flow path can control the residence time of the condensate water in the coil 211, avoid insufficient heat exchange caused by excessive local flow rate, or heat accumulation caused by slow flow rate, and improve the uniformity of overall heat exchange.

[0042] It should be noted that the water outlet 21B is lower than the water inlet 21A, which can naturally adapt to the vertical stacking layout of the condensing assembly 2 in the heat dissipation device 1. The lower water outlet 21B is convenient for docking with the reflux pipeline of the evaporation disc 11 or the inlet pipeline of the condenser 22 below, without the need for additional pipeline bending or lifting structure, which simplifies the pipeline arrangement and further optimizes the overall compactness of the heat dissipation device 1. At the same time, the low-position water outlet 21B is also convenient for gravity return of the condensate water, reducing the dependence on the secondary driving structure.

[0043] At the same time, in the shutdown state, the residual condensate water in the coil 211 can be naturally discharged through the low-position water outlet 21B under the action of gravity, avoiding scale deposition, microbial breeding caused by long-term static state, or frost damage in low-temperature environment, reducing equipment maintenance cost and improving system operation reliability.

[0044] Considering the specific structural scheme of the regional division of the evaporation disc 11, the heat dissipation device 1 provided by the embodiment of the present application is provided with a partition rib 112 formed on the bottom surface of the containing cavity 111, and the partition rib 112 is used to divide the evaporation disc 11 into a water storage area 1111 and a heat dissipation area 1112.

[0045] In this way, the partition rib 112 is directly formed on the bottom surface of the containing cavity 111 of the evaporating disc 11, and the height thereof is adapted to the depth of the containing cavity 111 or slightly lower than the height of the containing cavity 111, so as to avoid affecting the overall assembly; by extending along the rib structure preset on the boundary of the containing cavity 111, the containing cavity 111 is divided into two independent areas, one side is the water storage area 1111 for receiving and storing the low-temperature defrosting condensed water, and the other side is the heat dissipation area 1112, which is provided with the air inlet A corresponding to the heat dissipation area 1112, so as to provide an airflow passage for the condensing assembly 2. When the heat dissipation device 1 is running, the partition rib 112 can effectively block the condensed water in the water storage area 1111 from flowing into the heat dissipation area 1112 due to the inclination, vibration or water level fluctuation of the equipment, so as to avoid the condensed water from wetting the air inlet A or the surrounding structure of the heat dissipation area 1112, and ensure the smooth airflow of the air inlet A; at the same time, the condensed water stored in the water storage area 1111 can be stably transported to the heat exchanger 21 through the driving pump 24 and the pipeline, so as to provide a cold source for the heat exchange process; and the external airflow enters the condensing air duct C through the air inlet A of the heat dissipation area 1112, and then flows through the heat exchanger 21 and the condenser 22 in sequence, and is discharged from the air outlet B after completing the heat exchange. Through the separation effect of the partition rib 112, the water storage and cooling functions of the water storage area 1111 and the airflow passage function of the heat dissipation area 1112 are not interfered with each other, so as to form a cooperative running heat dissipation system.

[0046] Specifically, the core role of the partition rib 112 is to realize the physical isolation of the water storage area 1111 and the heat dissipation area 1112, so as to structurally eliminate the risk of condensed water flowing into the heat dissipation area 1112, avoid the problems of increased airflow resistance and decreased heat exchange efficiency caused by water accumulation in the air inlet A, or circuit short circuit and component corrosion caused by water infiltration into the equipment, and significantly improve the stability and reliability of the heat dissipation device 1 running. At the same time, the independent water storage area 1111 can ensure the stability of the condensed water storage amount, provide continuous cold source supply for the heat exchanger 21, and avoid the influence of water supply interruption on the precooling effect.

[0047] Further, the partition rib 112 is directly formed on the bottom surface of the containing cavity 111 of the evaporating disc 11, without the need for additional independent partition plates, water blocking strips and other components, so as to realize the integrated setting of the evaporating disc 11 body and the partition structure, reduce the number of parts and assembly processes, and reduce the production and assembly costs. In addition, the integrated partition rib 112 structure does not have a splicing gap, compared with the detachable partition component, further reduces the water leakage risk, and improves the structural sealing performance.

[0048] Exemplarily, the bottom-integrated partition rib 112 does not need to occupy the space outside the evaporation disc 11, and only uses the internal space of the containing cavity 111 to realize partitioning, so that the overall structure of the evaporation disc 11 is compact, meeting the setting requirements of the heat dissipation device 1 for miniaturization and light weight. At the same time, the position and form of the partition rib 112 can be flexibly set according to the water storage demand of the water storage area 1111 and the size of the air inlet A of the heat dissipation area 1112, such as adjusting the running direction and height of the rib body, so as to adapt to different specifications of the condensing assembly 2 and the installation space, and enhance the universality and adaptability of the scheme.

[0049] At the same time, the partition rib 112 formed on the bottom can be used as a reinforcing rib of the evaporation disc 11. Through the supporting effect of the rib body on the bottom, the overall anti-deformation ability of the evaporation disc 11 is improved. Especially after the water storage area 1111 stores condensed water, the pressure caused by the weight of the water body can be effectively dispersed, so as to avoid structural damage such as depression and cracking of the evaporation disc 11 due to long-term bearing, and prolong the service life of the evaporation disc 11.

[0050] It should be noted that the functional partitioning realized by the partition rib 112 is the basis for subsequent functions such as driving and supplying condensed water and directional flow of air flow. Only under the premise that the water storage area 1111 and the heat dissipation area 1112 are independent and do not interfere with each other, the driving pump 24 can stably extract condensed water to supply the heat exchanger 21, and the condensing fan 23 can form an orderly air flow through the air inlet A of the heat dissipation area 1112; the cooperative operation of the two ultimately realizes the complete heat dissipation logic of cold source recycling, air flow precooling and heat dissipation of the condenser 22, so as to improve the overall heat dissipation efficiency and obtain structural guarantee.

[0051] Considering the specific area scheme of the water storage area 1111 and the scheme that the heat exchange liquid flowing out of the heat exchanger 21 can also flow back to the water storage area 1111 in the containing cavity 111, one of them is that the water storage area 1111 includes a condensed water area 1111A and a backwater area 1111B arranged at intervals with the condensed water area 1111A, the condensed water area 1111A and the backwater area 1111B are spliced to form the water storage area 1111 together, the condensed water area 1111A is used to carry condensed water defrosted at low temperature, and the backwater area 1111B is used to receive the heat exchange liquid flowing out of the water outlet 21B of the heat exchanger 21; the other of them is that the water storage area 1111 only includes the condensed water area 1111A, and the heat exchange liquid discharged from the water outlet 21B of the heat exchanger 21 also flows back to the condensed water area 1111A, and the condensed water area 1111A can be subjected to cooling treatment.

[0052] In this way, in one of the schemes, the water storage area 1111 is composed of the condensate water area 1111A and the return water area 1111B which are spaced apart and spliced, and the two form independent liquid storage spaces through physical separation, such as a partitioning rib integrally formed with the partition rib 112 of the evaporative tray 11 or a separate partition plate, and the spliced layout ensures that the overall structure of the water storage area 1111 is complete and does not occupy additional space.

[0053] Specifically, the spacing arrangement of the condensate water area 1111A and the return water area 1111B can avoid direct dilution of the low-temperature defrosting water in the condensate water area 1111A by the return water which is slightly higher in temperature after completing heat exchange, so as to ensure that the heat exchanger 21 can always preferentially obtain the original cold source which is lower in temperature, and reduce the fluctuation of heat exchange efficiency caused by the temperature fluctuation of the cold source. At the same time, the liquid in the return water area 1111B is slightly higher in temperature, but still lower than the ambient temperature, and can be used as a secondary cold source to supplement as needed, realize gradient utilization of cold energy, and avoid waste of cold energy. At the same time, the partitioned storage makes the defrosting condensate water less impurities, and separates the micro-amount of impurities possibly carried by the return heat exchange liquid from the heat exchanger 21, so that if the water quality in the return water area 1111B is turbid or impurities are deposited, only the area needs to be cleaned, without the need to maintain the entire water storage area 1111, thereby reducing the cleaning difficulty. In addition, the partitioned structure facilitates monitoring of the water levels of the two areas, so as to accurately control the balance between the defrosting water collection amount and the return water amount, and avoid the risk of water overflow or water shortage.

[0054] Adaptively, if the condensate water area 1111A is insufficient in defrosting amount and the water level is low, the reserved liquid in the return water area 1111B can be quickly supplemented to avoid idling of the driving pump 24 or interruption of the heat exchanger 21 in supplying liquid; on the contrary, if the return water amount suddenly increases, the return water area 1111B can temporarily buffer to prevent the liquid from overflowing to the heat dissipation area 1112, thereby enhancing the fault tolerance of the system operation.

[0055] If another of the schemes is adopted, the water storage area 1111 is provided with only a single condensate water area 1111A, which simultaneously undertakes the functions of receiving low-temperature defrosting water and returning heat exchange liquid. In operation, the low-temperature defrosting condensate water directly flows into the condensate water area 1111A; the heat exchange liquid which is slightly higher in temperature after heat exchange in the heat exchanger 21 is directly discharged back to the condensate water area 1111A through the return pipeline. At this time, the returned heat exchange liquid mixes with the low-temperature defrosting water in the area, and since the defrosting water is continuously supplemented and lower in temperature than the return liquid, the mixed liquid can still maintain a relatively low temperature; the driving pump 24 extracts the mixed low-temperature liquid from the condensate water area 1111A and continuously delivers it to the heat exchanger 21 as a cold source, thereby forming a single-area circulation of collection, heat exchange, return, and reuse.

[0056] In this scheme, the water storage area 1111 does not need to be additionally provided with a partition structure such as a partition rib or a partition plate, and only through a single condensate water area 1111A can the liquid storage and reflux functions be achieved, reducing the mold complexity of the evaporative tray 11, eliminating the need for processing partition ribs, reducing the assembly process, eliminating the installation and debugging of partition components, significantly reducing the production manufacturing cost, and simplifying the later maintenance, only needing to clean a single area.

[0057] It should be noted that although the reflux of the heat exchange liquid will slightly increase the water temperature of the condensate water area 1111A, the low-temperature condensate water continuously produced during the defrosting process will continuously dilute and lower the temperature of the mixed liquid, forming a dynamic cold balance. For scenes with relatively stable heat dissipation load, such as small refrigerators 4 and constant-temperature cabinets, this scheme can meet the basic cold source demand of the heat exchanger 21, without the need for complex partition control logic.

[0058] At the same time, the single condensate water area 1111A can make full use of the space of the containing cavity 111 of the evaporative tray 11, without redundant space occupied by the partition structure, and can store more condensate water, improve the cold source reserve amount, especially suitable for scenes with a long defrosting period and a need for one-time storage of a large amount of cold source, and at the same time make the overall structure of the evaporative tray 11 more simple, and adapt to the installation environment with limited space.

[0059] Considering the formation scheme of the condensing air duct C in the heat dissipation device 1, in the heat dissipation device 1 provided by the embodiment of the present disclosure, the heat dissipation device 1 includes a shell member 3, the shell member 3 is arranged around the heat exchanger 21, the condenser 22 and the condensing fan 23, and forms a transverse air outlet B above the condensing fan 23, and the shell member 3 is arranged to form the condensing air duct C between the air inlet A and the transverse air outlet B.

[0060] In this way, the shell member 3 is integrally arranged on the outer periphery of the condensing assembly 2, the inner wall profile of which is adapted to the vertical stacked structure of the heat exchanger 21 and the condenser 22 and the mounting position of the condensing fan 23, forming a closed space conforming to the outer shape of the components; at the same time, the top of the shell member 3 is provided with a horizontal air outlet B corresponding to the output end of the condensing fan 23, and the bottom is connected to the air inlet A of the heat dissipation area 1112 of the evaporating disc 11, and a continuous and closed condensing air duct C is formed between the bottom air inlet A and the top horizontal air outlet B through the circumferential enclosure of the shell member 3, so that the airflow path is strictly limited within the shell member 3. When the heat dissipation device 1 is running, the condensing fan 23 is started to generate negative pressure, and the external air enters the condensing air duct C enclosed by the shell member 3 from the air inlet A of the heat dissipation area 1112 of the evaporating disc 11 under the action of negative pressure; the airflow flows upwards along the air duct, and is forced to flow through the lower heat exchanger 21 and the middle condenser 22 in turn, and fully exchanges heat with the low-temperature condensing water in the heat exchanger 21 and the heat dissipation surface of the condenser 22, and then continues to flow upwards to the condensing fan 23; after being pressurized by the fan, the airflow changes direction from vertical upward to horizontal, and is finally discharged from the horizontal air outlet B at the top of the shell member 3, completing the complete airflow circulation of air inlet, heat exchange and air outlet. In this process, the closed structure of the shell member 3 can effectively prevent the airflow from spreading to the periphery during heat exchange, ensuring that the airflow flows through the core heat exchange components.

[0061] Specifically, the closed condensing air duct C formed by the shell member 3 eliminates the problems of airflow escape and short circuit in the traditional open layout, and the short circuit can be understood as the airflow that does not flow through the heat exchange components and is discharged, so that the airflow entering the air duct is ensured to pass through the heat exchanger 21 and the condenser 22, greatly improving the effective contact air volume of the heat exchange components, and further improving the efficiency of cold exchange and heat dissipation. At the same time, the adaptive arrangement of the inner wall of the shell and the heat exchange components, such as the gradual change of the air duct cross section with the size of the heat exchanger 21 and the condenser 22, can reduce the turbulent loss and local vortex of the airflow in the air duct, make the airflow velocity distribution more uniform, avoid the heat exchange dead angle caused by uneven flow velocity, and further strengthen the overall heat exchange effect.

[0062] Regarding the horizontal air outlet B, the installation scene of the heat dissipation device 1 can be flexibly matched, such as in the compressor compartment 41 of the refrigerator 4, the horizontally discharged airflow can accurately guide the components that need auxiliary heat dissipation, such as the compressor 5, without the need for additional air guiding structure, solving the problem of incompatibility between the traditional vertical air outlet B and the horizontal layout inside the equipment, and realizing efficient heat docking of the heat dissipation device 1 and the components to be cooled.

[0063] Regarding the overall performance of the shell member 3, the shell member 3 simultaneously realizes component protection and air duct forming, without the need for additional independent air duct shells, thereby reducing the overall part quantity and volume of the heat dissipation device 1; and the surrounding structure of the shell can integrate the heat exchanger 21, the condenser 22, the fan and the like into a modular unit, facilitating overall assembly, disassembly and maintenance, and adapting to the space requirements of small-sized equipment.

[0064] Further, the shell member 3 covers the outer periphery of the core heat exchange components, can effectively block dust, water vapor, foreign matter and the like from entering the inner part of the heat exchanger 21 coil 211, the condenser 22 fin and the condensing fan 23, avoids faults such as heat exchange efficiency reduction and fan jamming caused by pollutant accumulation, and prolongs the service life of the components; the closed condensing air duct C can reduce the turbulent noise generated when the airflow flows through the heat exchange components, and the shell member 3 itself can block and attenuate the noise generated during fan operation, thereby reducing the overall noise pollution during operation of the heat dissipation device 1.

[0065] In summary, due to the directional guiding effect of the condensing air duct C, the heat exchange efficiency is improved, and under the premise of meeting the same heat dissipation requirement, the operating power of the condensing fan 23 can be reduced, for example, a low-speed fan can be used to achieve sufficient air volume, or the operating time of the fan is shortened, thereby indirectly reducing the system energy consumption; at the same time, the stable airflow path can avoid fluctuations in the heat exchange effect caused by airflow fluctuations, thereby ensuring that the heat dissipation capacity of the heat dissipation device 1 remains stable.

[0066] Considering the specific structural composition scheme of the shell member 3, in the heat dissipation device 1 provided by the embodiment of the present disclosure, the shell member 3 includes a first shell 31 and a second shell 32, the second shell 32 has a horizontal air outlet B, the second shell 32 is detachably connected above the first shell 31, and the first shell 31 covers the outer periphery of the heat exchanger 21, the condenser 22 and the condensing fan 23.

[0067] In this way, the first shell 31 serves as a basic bearing structure and covers the outer periphery of the heat exchanger 21, the condenser 22 and the condensing fan 23, and the inner wall thereof forms a main flow channel of the condensing air duct C, thereby ensuring that the airflow flows through each heat exchange component in a direction inside; the second shell 32 is integrated with the horizontal air outlet B and is detachably connected above the first shell 31, and after the upper opening of the first shell 31 is connected to the second shell 32, the first shell 31 and the second shell 32 together form a complete and closed condensing air duct C. During operation, the airflow enters the air duct in the first shell 31 from the air inlet A, sequentially flows through the heat exchanger 21 and the condenser 22, reaches the condensing fan 23, enters the second shell 32 which is detachably connected after being pressurized by the fan, and is finally discharged from the horizontal air outlet B; when disassembled, the two shells can be separated to realize independent operation of the internal components.

[0068] Specifically, the first shell 31 covers the core heat exchange component through the overall cover, ensuring the closed nature of the air duct, avoiding air leakage, and ensuring heat exchange efficiency; the transverse air outlet B of the second shell 32 can be accurately fitted to the installation scene, such as the guide compressor 5, and the detachable connection allows the heat exchanger 21 and other components to be pre-installed in the first shell 31 during assembly, and then the second shell 32 is connected, simplifying the assembly process, and during maintenance, only the second shell 32 needs to be disassembled to repair the condensing fan 23, or the first shell 31 is disassembled to maintain the heat exchanger 21 and the condenser 22, without the need for overall disassembly of the heat dissipation device 1. At the same time, the split type setting facilitates the replacement of different specifications of the second shell 32 according to the needs, and different specifications can be understood as changes in the size and number of the air outlet B, improving the adaptability of the scheme, and the combination structure of the two shells can still maintain the overall stability of the condensing air duct C, meeting the multiple needs of protection, guidance and flexible adjustment, and the protection range is the core of the combination scheme of the first shell 31 covering the core component and the second shell 32 with the transverse air outlet B and detachable connection above the first shell 31, which is not limited by the specific connection method and material.

[0069] Considering the temperature control scheme for the temperature in the condensing assembly 2, the heat dissipation device 1 provided by the embodiment of the present disclosure has a temperature sensor arranged on the inner wall of the first shell 31 corresponding to the position area of the condensing pipe in the condenser 22, and the heat dissipation device 1 is provided with a control system, and the control system is electrically connected with the temperature sensor.

[0070] In this way, the temperature sensor is arranged on the inner wall of the first shell 31 corresponding to the position area of the condensing pipe of the condenser 22, which can directly and accurately collect the actual working temperature of the condensing pipe, avoiding temperature detection lag caused by being away from the core heat generating component; after the temperature sensor is electrically connected with the control system, the real-time collected temperature signal can be continuously transmitted to the control system, and the control system analyzes and processes the signal based on the preset temperature threshold value, which can be the best working temperature range of the condenser 22, and then the execution components of the heat dissipation device 1 are linked and controlled, such as the rotation speed of the condensing fan 23 and the flow of the driving pump 24, forming a temperature control closed loop of temperature collection, signal transmission, analysis and judgment, and execution control.

[0071] Specifically, the temperature sensor is arranged near the fixed point of the condenser pipe, ensuring that the collected temperature data truly reflects the core heat dissipation state of the condenser 22, solving the regulation deviation problem caused by traditional non-fixed point temperature measurement; the control system based on the linkage regulation of accurate signals can increase the heat dissipation intensity when the condenser pipe temperature is too high, such as increasing the fan speed; when the temperature is too low, the energy consumption is reduced, such as reducing the pump flow, achieving the balance of energy efficiency and heat dissipation effect. The core of the protection scope is the combination of the temperature sensor arranged on the inner wall of the first shell 31 corresponding to the condenser pipe of the condenser 22 and the control system electrically connected with the sensor, which is not limited by the specific type of the temperature sensor and the type of the control system execution component. As long as the temperature monitoring and associated control of the condenser 22 are realized through the feature combination, it falls within the application scope of the scheme.

[0072] The refrigerator 4 provided by the embodiments of the present disclosure also includes the heat dissipation device 1 described above, and further includes a compressor compartment 41, and the heat dissipation device 1 is installed in the compressor compartment 41. In this way, all the effects of the heat dissipation device 1 described above can be achieved.

[0073] Specifically, the heat dissipation device 1 collects low-temperature defrosting condensate water in the water storage area 1111 divided by the partition rib 112 of the evaporation disc 11 in the compressor compartment 41, and delivers the low-temperature defrosting condensate water to the heat exchanger 21 with the coil pipe 211 and the heat dissipation fin 212 through the driven pump 24. Meanwhile, the first shell 31 of the shell member 3 covers the heat exchanger 21, the condenser 22 and the condenser fan 23, and is detachably connected with the second shell 32 with the transverse air outlet B, and the condenser air duct C formed by surrounding is used to guide the airflow to enter from the air inlet A, and then pass through the heat exchanger 21 for pre-cooling, the condenser 22 for heat dissipation, and then guide the relatively low-temperature gas to the compressor 5 in the compressor compartment 41 through the transverse air outlet B. The temperature sensor on the inner wall of the first shell 31 corresponding to the condenser pipe of the condenser 22 transmits real-time temperature signals to the control system, and the linkage control execution component operates; the scheme makes the refrigerator 4 completely inherit all the effects of the heat dissipation device 1 described above, such as heat recovery, energy consumption optimization and compact structure. Meanwhile, since the heat dissipation device 1 is integrated in the compressor compartment 41, it can directionally assist the heat dissipation of the compressor 5, improve the overall refrigeration system efficiency of the refrigerator 4, and does not need to occupy additional storage space, and is not limited by the volume, refrigeration type and specific specifications of the compressor compartment 41 of the refrigerator 4.

[0074] In order to better understand the scheme of the heat dissipation device 1 and the refrigerator 4 provided by the embodiments of the present disclosure, please refer to the following exemplary scheme as a supplementary understanding: The application provides a heat dissipation device 1 for a compressor chamber 41 of an embedded refrigerator 4 and the refrigerator 4. The collected condensed water is sent into the coil 211 of the heat exchanger 21 by a water pump, the low-temperature characteristics of the condensed water are transmitted to the heat dissipation fins 212 through the heat-conducting material, the air at the air inlet A is pre-cooled by the heat exchanger 21 and then blown into the condenser 22 and the compressor 5, and the heat dissipation efficiency of the compressor chamber 41 of the embedded refrigerator 4 can be improved. Meanwhile, the condensed water is flowed into the evaporation disc 11 after completing heat exchange in the heat exchanger 21, and the circulation utilization is realized.

[0075] Specifically, the compressor chamber 41 is located at the bottom of the back of the refrigerator 4, and the compressor 5, a drain pipe and an evaporation disc 11 assembly are distributed in the compressor chamber 41. The compressor 5 is arranged at the left part of the compressor chamber 41, the evaporation disc 11 assembly is arranged at the right part, one end of the drain pipe is connected with the defrosting water collecting disc, and the other end is connected with the left side of the evaporation disc 11. The defrosting water can directly flow into the evaporation disc 11 through the drain pipe and be stored.

[0076] In addition, the compressor 5 is installed on the left side of the bottom plate, and the evaporating disc 11 assembly is installed on the right side of the bottom plate, which includes the evaporating disc 11, a small water pump, a sealing sleeve 6, and a condensing air duct C assembly. The evaporating disc 11 is divided into a water storage area 1111 and a heat dissipation area 1112, which are separated by a middle rib. A drain pipe directly passes through the water storage area 1111, where defrosting water can be collected. The water pump is installed in the water storage area 1111 and connected to the water inlet 21A of the coil 211 of the heat exchanger 21 through the sealing sleeve 6, so as to transport the low-temperature defrosting water in the water storage area 1111 to the heat exchanger 21. In addition, a square water storage structure is arranged at the corner of the water storage area 1111, and the height of the rib is lower than the top of the evaporating disc 11, so as to ensure the normal water storage volume of the water storage area 1111. The water outlet 21B of the coil 211 of the heat exchanger 21 is connected to the square water storage structure, and part of the condensed water flowing in the coil 211 for a long distance can accelerate its evaporation to absorb heat. The remaining condensed water that has not been completely evaporated can be stored in the square water storage structure through the water outlet 21B. The position of the water outlet 21B is higher than the bottom surface of the evaporating disc 11 to avoid backflow. In this way, the condensed water in the coil 211 is fed in from the high position and discharged from the low position, and the circulation is completed under the action of gravity. At the same time, the condensed water after heat exchange can be separated from the condensed water that has not passed through the heat exchanger 21 in the water storage area 1111, so as to avoid the mixing of the condensed water and the decrease of the heat exchange effect. The bottom of the heat dissipation area 1112 is provided with an air inlet A, and the corresponding position of the compressor bottom plate is also opened, which is used for air inlet of the compressor chamber 41. The air inlet mode of the bottom part is used for heat dissipation in the compressor chamber 41. The first shell 31 and the second shell 32 can be spliced by buckles to form a sealed condensing air duct C, that is, the condensing air duct C, which can ensure that the air in the air inlet A completely flows to the condenser 22 after completing the pre-cooling through the heat exchanger 21, and then blows to the compressor 5 to improve the heat dissipation efficiency. The side of the shell located below can be fixed with the evaporating disc 11 through buckles, and the other side is fixed by screws and provided with a temperature sensor for sensing the temperature near the condenser 22. The heat exchanger 21, the condenser 22, and the condensing fan 23 are vertically arranged in the air duct, are centrally aligned, and the condensing fan 23 is fixed in the outer shell by screws, and the condenser 22 is installed in the inner shell. The heat exchanger 21 includes the coil 211, the heat dissipation fin 212, the first clamping plate 213, and the second clamping plate 214. The coil 211 is arranged in multiple layers and is closely attached to the heat dissipation fin 212. The coil 211 and the fin are made of high-thermal-conductivity materials such as aluminum alloy. The heat dissipation fin 212 is perpendicular to the air flow direction, which can increase the contact time and the contact area and improve the heat exchange efficiency.When the temperature sensor detects that the condenser 22 temperature exceeds the preset value, the water pump and condensing fan start working, the water pump delivers condensate water to the heat exchanger 21 coil 211 inlet 21A, and flows from top to bottom in the coil 211 to transfer cold to the fins, and finally flows into the evaporating disc 11 corner square water storage area through the outlet 21B, at the same time the condensing fan 23 starts, the external air is sucked in through the bottom plate and the evaporating disc 11 bottom inlet A, and after pre-cooling by contacting the fins of the heat exchanger 21, it flows completely to the condenser 22, and after being discharged from the back of the condensing fan 23, it is blown to the compressor 5 through the shell air outlet B, the outlet B is left between the compressor bottom plate and the bottom plate assembly (sofa seat), and finally the heat dissipation air of the compressor warehouse 41 is discharged through the air outlet B.

[0077] It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependent step. It is also to be understood that additional or alternative steps can be employed.

[0078] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second", and the like, as well as other ordinal terms, are used herein in a variable way. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0079] The above description is merely that of a particular implementation of the application, and as such, a variety of modifications and changes can be made thereto by those skilled in the art without departing from the broader spirit and scope of the application as set forth in the appended claims. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims

1. A heat dissipating device, characterized by, The heat dissipation device comprises: an evaporation disc having a containing cavity, the containing cavity comprising a condensate water storage area for carrying condensate water of low-temperature defrosting and a heat dissipation area having an air inlet; a condensation assembly is arranged above the air inlet, the condensation assembly comprising a heat exchanger, a condenser and a condensation fan arranged in sequence from bottom to top; a water inlet of the heat exchanger is in communication with the condensate water storage area, condensate water in the condensate water storage area is configured to flow into heat exchange tubes of the heat exchanger, a water outlet of the heat exchange tubes is in communication with the condensate water storage area, condensate water in the heat exchange tubes is configured to flow back to the containing cavity, the condensation fan is used for accelerating heat dissipation, an air outlet is arranged above the condensation fan, and a condensation air duct is formed between the air outlet and the air inlet; the condensate water storage area comprises a condensate water region and a return water region arranged in a spaced manner, the condensate water region and the return water region are spliced to form the condensate water storage area, the condensate water region is used for carrying condensate water of low-temperature defrosting, and the return water region is used for receiving heat exchange liquid flowing out of the water outlet of the heat exchanger.

2. The heat dissipating device according to claim 1, wherein the heat exchanger comprises a coil pipe, a heat dissipation fin, a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are arranged in a spaced manner and have a containing space for mounting the coil pipe and the heat dissipation fin therebetween, and the coil pipe is arranged in multiple layers in a longitudinal direction, and a layer of the heat dissipation fin is arranged between adjacent two layers of the coil pipe.

3. The heat dissipating device of claim 2, wherein, a water inlet of the coil pipe is formed in the first clamping plate and is in communication with the condensate water storage area through a first pipeline, and a driving pump is further arranged between the first pipeline and the condensate water storage area, the driving pump is used for pumping condensate water in the condensate water storage area into the coil pipe through the first pipeline.

4. The heat dissipating device according to claim 3, wherein a water outlet of the coil pipe is formed in the second clamping plate, and a horizontal installation position of the water outlet is lower than that of the water inlet.

5. The heat dissipating device of claim 1, wherein the evaporation disc is provided with a partition rib, the partition rib is formed on a bottom surface of the containing cavity, and the partition rib is used for dividing the evaporation disc into the condensate water storage area and the heat dissipation area.

6. The heat dissipating device of claim 1, wherein the heat dissipation device comprises a shell member, the shell member covers an outer periphery of the heat exchanger, the condenser and the condensation fan, forms a transverse air outlet above the condensation fan, and forms the condensation air duct between the air inlet and the transverse air outlet.

7. The heat dissipating device according to claim 6, wherein the shell member comprises a first shell and a second shell, the second shell has the transverse air outlet, the second shell is detachably connected above the first shell, and the first shell covers the outer periphery of the heat exchanger, the condenser and the condensation fan.

8. The heat dissipating device according to claim 7, wherein a temperature sensor is arranged on an inner wall of the first shell corresponding to a position area of a condensation tube in the condenser, and the heat dissipation device is provided with a control system, and the control system is electrically connected with the temperature sensor.

9. A refrigerator characterized by comprising: the heat dissipation device as claimed in any one of claims 1-8 further comprises a press machine bin, and the heat dissipation device is mounted in the press machine bin.

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