Temperature control device, electric cabinet and liquid cooling source air conditioner

Abstract

The utility model discloses a temperature control device, an electric cabinet and a liquid cooling source air conditioner. The temperature control device comprises a flow equalizing channel, a heat dissipation micro-channel, an auxiliary heating structure, a bottom plate and a cover plate, wherein the flow equalizing channel and the heat dissipation micro-channel form a heat dissipation structure; the side, back to the cover plate, of the bottom plate is tightly attached to a box body of the electric control box. The side, back to the bottom plate, of the cover plate is provided with an auxiliary heating structure. When the bottom plate and the cover plate are matched and covered, a flow equalizing channel and a heat dissipation micro-channel which are communicated with each other are sequentially formed on the opposite sides of the bottom plate and the cover plate, the flow equalizing channel is communicated with a liquid inlet of the temperature control device, and the heat dissipation micro-channel is communicated with a liquid outlet of the temperature control device. According to the electric control box, the heat dissipation structure and the auxiliary heating structure are integrated into the temperature control device, so that the electric control box can be used in a high-temperature environment and a low-temperature environment, the situation that an electric control element is damaged by high temperature or low temperature is prevented, the auxiliary heating structure is arranged on the outermost side of the temperature control device, the temperature in the box body can be prevented from rising too fast, and the service life of the electric control box is prolonged. Therefore, the universality and the stability of the electric control box are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electricity, in particular to a temperature control device, an electric control box and a liquid-cooled source air conditioner. Background Art

[0002] Due to the special structure of the liquid-cooled source air conditioner itself, it is often applied to extreme special environments such as plateaus, snow fields, deserts, etc. And the existing heat dissipation method of the electric control box in the liquid-cooled source air conditioner mainly adopts an air-cooled fin radiator, which is installed at the rear of the electric control box. By the suction force during the rotation of the engine fan, the cooling air passes through the fins of the radiator to take away the temperature, so as to achieve the purpose of cooling. The main problems it has are as follows:

[0003] (1) The external structure of the radiator is easily affected by external factors. For example, when the external temperature rises, the heat dissipation effect of the fin radiator will drop linearly, and the electric control components in the electric control box will fail due to high temperature.

[0004] (2) The fin radiator cannot solve the low-temperature failure of the electric control components due to low temperature in the plateau low-temperature environment.

[0005] Therefore, how to provide an electric control box that can be used in both low-temperature and high-temperature environments is a technical problem to be solved urgently. Summary of the Utility Model

[0006] In view of this, the utility model provides a temperature control device, an electric control box and a liquid-cooled source air conditioner, which are used to solve the problem that the existing electric control box cannot be used in both low-temperature and high-temperature environments.

[0007] The technical solution of the utility model is a temperature control device for an electric control box, including: a heat dissipation structure, an auxiliary heating structure, a bottom plate and a cover plate;

[0008] The heat dissipation structure includes a uniform flow channel and a heat dissipation micro-channel;

[0009] One side of the bottom plate facing away from the cover plate is used to closely adhere to the box body of the electric control box, and an auxiliary heating structure is installed on one side of the cover plate facing away from the bottom plate;

[0010] When the bottom plate and the cover plate are matched and closed, the relative sides of the bottom plate and the cover plate sequentially form the communicated uniform flow channel and the heat dissipation micro-channel, and the uniform flow channel is communicated with the liquid inlet of the temperature control device, and the heat dissipation micro-channel is communicated with the liquid outlet of the temperature control device.

[0011] Further, the heat dissipation structure further includes a first heat dissipation fin and a second heat dissipation fin;

[0012] The bottom plate is provided with a first uniform flow groove near the liquid inlet of the temperature control device, and the cover plate is provided with a second uniform flow groove corresponding to the first uniform flow groove;

[0013] The bottom plate is provided with a plurality of first heat dissipation ribs arranged side by side corresponding to the outlet of the first flow equalizing groove, and the adjacent first heat dissipation ribs form a first heat dissipation groove, and all the first heat dissipation grooves are communicated with the first flow equalizing groove; the cover plate is provided with second heat dissipation ribs corresponding to the first heat dissipation ribs, and the adjacent second heat dissipation ribs form a second heat dissipation groove, and the second heat dissipation grooves are communicated with the second flow equalizing groove;

[0014] Among them, when the base plate and the cover plate are matched and covered, the first flow equalizing groove can be matched and covered with the second flow equalizing groove to form the flow equalizing channel, and the first heat dissipation groove can be matched and covered with the second heat dissipation groove to form the heat dissipation microchannel.

[0015] Furthermore, the first flow balancing groove and the second flow balancing groove are both intermediate symmetrical structures.

[0016] Furthermore, the auxiliary heating structure includes an auxiliary heating shell and an auxiliary heating element;

[0017] The bottom plate and the cover plate are both made of heat-conducting materials. A heating auxiliary shell is provided on the side of the cover plate facing away from the bottom plate, and a heating auxiliary element is inserted into the heating auxiliary shell.

[0018] Furthermore, a side of the bottom plate facing away from the cover plate is inwardly recessed to form a placement groove, a temperature sensor is installed in the placement groove, and the temperature sensor is used to measure the temperature of the box body.

[0019] The utility model also provides an electric control box, the outer side wall of the box body of the electric control box is installed with the above-mentioned temperature control device.

[0020] Furthermore, the box body is also provided with a box door, and at least one temperature control device is closely attached to the outer side wall of the box body facing away from the box door;

[0021] The box body is also equipped with a first mounting plate and a second mounting plate forming a double-layer structure;

[0022] The second mounting plate is located below the first mounting plate and is close to the inner wall of the box body facing away from the box door;

[0023] The first mounting board is used to mount temperature-stable components, and the second mounting board is used to mount heating components and low-temperature, temperature-losing components.

[0024] Furthermore, the heating element and the low-temperature volatile element include a driving board, a resistor, a main control board and a rectifier bridge;

[0025] The temperature-stable components include a filter board, a reactor and a terminal block.

[0026] Further, at least two filter plates are arranged side by side on the upper side of the first mounting plate, and at least one reactor and at least one wiring row are arranged side by side on the lower side of the first mounting plate;

[0027] At least two vertically arranged resistors, at least two vertically arranged drive plates and at least one main control board are sequentially arranged on the second mounting plate along its X-axis direction, and at least one rectifier bridge is further arranged on the lower side of the second mounting plate corresponding to the main control board.

[0028] The present utility model further provides a liquid-cooled source air conditioner, and the liquid-cooled source air conditioner includes the above-mentioned electric control box.

[0029] Further, the liquid-cooled source air conditioner further includes a first heat exchanger, a cooling medium storage tank, a second heat exchanger and a compressor;

[0030] The liquid outlet of the first heat exchanger is connected to the liquid inlet of the cooling medium storage tank, the liquid outlet of the cooling medium storage tank is connected to the liquid inlet of the temperature control device, the liquid outlet of the temperature control device is connected to the liquid inlet of the second heat exchanger, and a compressor is arranged between the liquid outlet of the second heat exchanger and the liquid inlet of the first heat exchanger;

[0031] A linear flow regulating valve is arranged between the liquid inlet of the temperature control device and the liquid outlet of the cooling medium storage tank.

[0032] Compared with the prior art, the present utility model has at least the following beneficial effects:

[0033] The electric control box of the present utility model enables the electric control box to be used in both high-temperature and low-temperature environments through the temperature control device with an integrated design of a heat dissipation structure and an auxiliary heating structure, preventing the situation of damage to electric control components due to high temperature or low temperature; and the auxiliary heating structure is arranged on the outermost side of the temperature control device, which can prevent the temperature inside the box from rising too fast and causing damage to electric control components, thereby improving the versatility and stability of the electric control box. Description of the Drawings

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in the description of the present application herein are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model; the terms "including" and "having" and any variations thereof in the description and claims of the present utility model and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the description and claims of the present utility model or the above drawings are used to distinguish different objects, rather than to describe a specific order.

[0035] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the attached drawings required for use in the embodiments or the description of the prior art. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0036] Figure 1 Structural schematic diagram of the bottom plate and the cover plate of the present utility model being opened relatively;

[0037] Figure 2 For Figure 1 Enlarged schematic diagram of the marked attached drawing A in

[0038] Figure 3 Cross-sectional view of the temperature control device of the present utility model;

[0039] Figure 4 For Figure 3 Enlarged schematic diagram of the marked attached drawing B in

[0040] Figure 5 Structural schematic diagram of the temperature control device of the present utility model;

[0041] Figure 6 Top view of the second mounting plate of the present utility model;

[0042] Figure 7 Open schematic diagram of the electric control box of the present utility model;

[0043] Figure 8 Rear view of the electric control box of the present utility model;

[0044] Figure 9 A module block diagram of the liquid-cooled source air conditioner of the present utility model;

[0045] Figure 10 Another module block diagram of the liquid-cooled source air conditioner of the present utility model.

[0046] Reference numerals:

[0047] 1. Box body; 11. First mounting plate; 111. Filter board; 112. Reactor; 113. Terminal block;

[0048] 12. Second mounting plate; 121. Driving board; 122. Resistor; 123. Main control board; 124. Rectifier bridge;

[0049] 21. Heat dissipation structure; 211. Flow equalizing channel; 2111. First flow equalizing groove; 2112. Second flow equalizing groove; 2113. First branch flow equalizing channel; 2114. Second branch flow equalizing channel; 212. First heat dissipation fin; 213. Second heat dissipation fin; 214. Heat dissipation microchannel; 2141. First heat dissipation groove; 2142. Second heat dissipation groove;

[0050] 22. Auxiliary heating structure; 221. Auxiliary heating housing; 222. Auxiliary heating element;

[0051] 23. Bottom plate; 231. Placing groove;

[0052] 24. Cover plate;

[0053] 25. Temperature sensor;

[0054] 3. Cabinet door;

[0055] 4. First heat exchanger; 5. Cooling medium storage tank; 6. Second heat exchanger; 7. Compressor; 8. Linear flow regulating valve; 9. Check valve; 10. Electronic expansion valve; 11. Low pressure switch; 12. High pressure switch. Detailed implementation manners

[0056] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Thus, a feature pointed out in this specification will be used to illustrate one feature of one embodiment of the present utility model, rather than implying that each embodiment of the present utility model must have the feature described. In addition, it should be noted that this specification describes many features. Although some features may be combined together to show possible system designs, these features can also be used in other combinations not explicitly described. Thus, unless otherwise stated, the described combinations are not intended to be limiting.

[0057] The principle and structure of the present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0058] Embodiment 1

[0059] Due to the special structure of the liquid-cooled source air conditioner itself, it is often used in extreme special environments such as plateaus, snowfields, and deserts. And the existing heat dissipation method for the electronic control box in the liquid-cooled source air conditioner mainly uses an air-cooled fin radiator, which is installed at the rear of the electronic control box. By the suction force during the rotation of the engine fan, the cooling air passes through the fins of the radiator to take away the temperature, so as to achieve the purpose of cooling. The main problems it has are:

[0060] (1) The external structure of the radiator is vulnerable to external factors. For example, as the external temperature rises, the heat dissipation effect of the fin radiator will drop significantly, and the electrical control components in the electrical control box will fail due to high temperature.

[0061] (2) The fin radiator cannot solve the low-temperature failure of electrical control components caused by low temperature in the plateau low-temperature environment.

[0062] Therefore, to solve the above problems, referring to the attached Figure 1 and 8 , the present utility model proposes a temperature control device for an electrical control box, including: a heat dissipation structure 21, an auxiliary heating structure 22, a bottom plate 23, and a cover plate 24 that matches and covers the bottom plate 23;

[0063] The heat dissipation structure 21 includes a flow equalizing channel 211 and a heat dissipation micro-channel 214;

[0064] One side of the bottom plate 23 facing away from the cover plate 24 is used to closely adhere to the box body 1 of the electrical control box, and an auxiliary heating structure 22 is installed on one side of the cover plate 24 facing away from the bottom plate 23;

[0065] When the bottom plate 23 and the cover plate 24 are matched and covered, the flow equalizing channel 211 and the heat dissipation micro-channel 214 that communicate with each other are sequentially formed on the opposite sides of the bottom plate 23 and the cover plate 24, and the flow equalizing channel 211 communicates with the liquid inlet of the temperature control device, and the heat dissipation micro-channel 214 communicates with the liquid outlet of the temperature control device.

[0066] It should be noted that a main control board 123 is provided in the electrical control box to control the on-off of the auxiliary heating structure 22 and to control whether the external cooling medium can flow into the heat dissipation structure 21.

[0067] In this way, when the electrical control box works in a high-temperature environment such as a desert and the temperature of the electrical control box exceeds the high-temperature threshold temperature set by itself, the main control board 123 will control the cooling medium to flow into the heat dissipation structure 21. Then, the cooling medium in the heat dissipation structure 21 will absorb the heat in the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually drops below the high-temperature threshold temperature. In this way, compared with the heat dissipation method using an air-cooled fin radiator, the heat dissipation effect of the present application will not drop significantly due to the reduction of the temperature difference between the heat dissipation structure 21 and the surrounding environment, and the electrical control components in the electrical control box will not suffer from high-temperature failure due to high temperature; and when the electrical control box works in a low-temperature environment such as a plateau and the temperature of the electrical control box is lower than the low-temperature threshold temperature set by itself, the main control board 123 will start the auxiliary heating structure 22. When the auxiliary heating structure 22 is energized, it will generate heat, and the generated heat will be transferred to the inside of the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually rises above the low-temperature threshold temperature to prevent the electrical control components in the electrical control box from suffering from low-temperature failure due to low temperature.

[0068] Moreover, the auxiliary heating structure 22 is arranged on the outermost side of the temperature control device. In this way, the heat generated by the auxiliary heating structure 22 will first pass through the temperature control device and then be transferred into the box body 1, preventing the temperature inside the box body 1 from rising too fast and further preventing the damage of the electronic control components.

[0069] Therefore, the electronic control box of the present utility model can use the temperature control device integrating the heat dissipation structure 21 and the auxiliary heating structure 22 in both high-temperature and low-temperature environments, preventing the damage of the electronic control components due to high temperature or low temperature, so as to improve the versatility and stability of the electronic control box.

[0070] Wherein, to further ensure that the temperature control device can absorb or transfer heat to the box body 1 in time, referring to the attached Figure 1 and 5 , a bottom plate 23 is closely attached to the outer side wall of the box body 1. A heat dissipation structure 21 is arranged between the bottom plate 23 and the cover plate 24, and an auxiliary heating structure 22 is arranged on the side of the cover plate 24 facing away from the bottom plate 23.

[0071] It should be noted that both the bottom plate 23 and the cover plate 24 are made of heat-conducting materials.

[0072] In this way, the heat dissipation structure 21 can be closer to the outer side wall of the box body 1, so as to absorb the heat inside the box body 1 through the outer side wall of the box body 1 faster and more timely, thereby reducing the temperature inside the box body 1; and the heat of the auxiliary heating structure 22 can also be transferred to the box body 1 after passing through the bottom plate 23 and the cover plate 24, which can prevent the temperature inside the box body 1 from rising too fast and further prevent the damage of the electronic control components.

[0073] Wherein, the bottom plate 23 and the cover plate 24 are respectively provided with screw holes, and bolts are screwed into the screw holes so that the bottom plate 23 and the cover plate 24 form a bolt connection, and corresponding sealant is filled in the gap between the bottom plate 23 and the cover plate 24 to prevent the cooling medium from leaking from the temperature control device.

[0074] Wherein, to ensure that the main control board 123 can monitor the temperature of the electronic control box in time and prevent the temperature of the electronic control box from being too low or too high, referring to the attached Figure 3-4 , a placement groove 231 is formed by the inward depression of the side of the bottom plate 23 facing away from the cover plate 24. A temperature sensor 25 is installed in the placement groove 231, and the temperature sensing end of the temperature sensor 25 is in contact with the outer side wall of the box body 1. The temperature sensor 25 is used to measure the temperature of the box body 1.

[0075] It should be noted that the temperature sensor 25 is electrically connected to the main control board 123.

[0076] In this way, when the main control board 123 can receive the detected temperature transmitted by the temperature sensor 25 in real time, when the main control board 123 finds that the detected temperature exceeds the high-temperature threshold temperature, the main control board 123 will activate the heat dissipation structure 21; similarly, when the main control board 123 finds that the detected temperature is lower than the low-temperature threshold temperature, the main control board 123 will activate the auxiliary heating structure 22, so that the ambient temperature in the box body 1 is between the low-temperature threshold temperature and the high-temperature threshold temperature, so that the electrical control components in the electrical control box can work normally.

[0077] Among them, referring to the attached Figure 1-3 , the heat dissipation structure 21 further includes a first heat dissipation fin 212 and a second heat dissipation fin 213;

[0078] A first flow equalizing groove 2111 is provided at the liquid inlet of the bottom plate 23 close to the temperature control device, and a second flow equalizing groove 2112 corresponding to the first flow equalizing groove 2111 is provided on the cover plate 24;

[0079] A plurality of first heat dissipation fins 212 arranged side by side are provided at the outlet of the bottom plate 23 corresponding to the first flow equalizing groove 2111. Adjacent first heat dissipation fins 212 form a first heat dissipation groove 2141, and all the first heat dissipation grooves 2141 communicate with the first flow equalizing groove 2111; the cover plate 24 is provided with a second heat dissipation fin 213 corresponding to the first heat dissipation fin 212 in a matching manner. Adjacent second heat dissipation fins 213 form a second heat dissipation groove 2142, and the second heat dissipation grooves 2142 communicate with the second flow equalizing groove 2112;

[0080] Among them, when the bottom plate 23 and the cover plate 24 are matched and covered, the first flow equalizing groove 2111 can be matched and covered with the second flow equalizing groove 2112 to form a flow equalizing channel 211 communicating with the liquid inlet of the temperature control device, and the first heat dissipation groove 2141 can be matched and covered with the second heat dissipation groove 2142 to form a heat dissipation microchannel 214 communicating with the liquid outlet of the temperature control device. The flow equalizing channel 211 and the heat dissipation microchannel 214 are both filled with a cooling medium.

[0081] It should be noted that the liquid inlet of the temperature control device is connected to the condenser, the liquid outlet of the temperature control device is connected to the evaporator, and a compressor is connected between the evaporator and the condenser to form a cooling medium circulation system.

[0082] In this way, the heat dissipation fins can gather the heat generated by the heating elements, and then the cooling medium can flow evenly to the heat dissipation microchannels 214 formed by the heat dissipation fins through the flow equalizing channel 211, and then the cooling medium absorbs the heat of the heat dissipation fins on both sides of the heat dissipation microchannels 214 to achieve the heat dissipation of the box body 1.

[0083] Among them, referring to the attached Figure 1The flow equalizing channel 211 in this embodiment includes a first branch flow equalizing channel 2113 and a second branch flow equalizing channel 2114; the liquid inlet of the temperature control device first enters the first branch flow equalizing channel 2113, and will be divided into two first branch ports, and then each first branch port enters the second branch flow equalizing channel 2114 respectively, so that each first branch port is further divided into two second branch ports, and then each second branch port flows to the heat dissipation microchannel 214.

[0084] The cross-sectional area of ​​each first branch opening is A (mm 2 ) should be larger than the cross-sectional area B (mm) of the two corresponding second branch openings 2 ), that is, A>2B; and the cross-sectional area of ​​all first branch openings is 2A (mm 2 ) and the cross-sectional area of ​​all second branch openings 4B (mm 2 ) are larger than the cross-sectional area of ​​the liquid inlet of the temperature control device, which can expand the negative pressure of the flow-balancing channel 211 to make the cooling medium flow more evenly.

[0085] Among them, in order to further ensure the heat dissipation effect of the heat dissipation structure 21, the first flow equalizing groove 2111 and the second flow equalizing groove 2112 are both intermediate symmetrical structures; and the first flow equalizing groove 2111 and the second flow equalizing groove 2112 are both composed of inwardly recessed grooves of the bottom plate 23 and the cover plate 24 themselves, so that the cooling medium entering from the liquid inlet of the temperature control device can flow to the heat dissipation microchannel 214 more evenly through the flow equalizing channel 211.

[0086] In order to ensure the heating effect of the temperature control device, refer to the attached Figure 5 , this embodiment proposes a heat-assisting structure 22:

[0087] The auxiliary heating structure 22 includes an auxiliary heating housing 221 and an auxiliary heating element 222;

[0088] A heating auxiliary housing 221 is disposed on a side of the cover plate 24 facing away from the bottom plate 23 , and a heating auxiliary element 222 is inserted into the heating auxiliary housing 221 .

[0089] It should be noted that the auxiliary heating housing 221 is also made of heat-conductive material, and the auxiliary heating housing 221 is arranged in the middle of the outer wall of the cover plate 24 facing away from the bottom plate 23 and is in a "匚" shape, so as to ensure that the heat generated by the auxiliary heating element 222 can be evenly transferred to the box body 1 through the temperature control device. The auxiliary heating element 222 in this embodiment is illustrated by a resistance wire, and the auxiliary heating element 222 is electrically connected to the main control board 123.

[0090] Among them, this embodiment also proposes a control method according to the temperature control device, specifically:

[0091] After the electric control box is powered on and working, the temperature sensor 25 will continuously transmit the detection data of the temperature of the electric control box to the main control board 123. When the temperature of the electric control box exceeds the high-temperature threshold temperature, the main control board 123 will start the heat dissipation structure 21, so that the cooling medium passes through the flow equalizing channel 211 and the heat dissipation micro-channel 214 to dissipate heat from the electric control box until the temperature of the electric control box is within ±1°C of the preset temperature, and then the main control board 123 will turn off the heat dissipation structure 21;

[0092] When the temperature of the electric control box is lower than the low-temperature threshold temperature, the main control board 123 will start the auxiliary heating structure 22 to raise the temperature of the electric control box until the temperature of the electric control box is within ±1°C of the preset temperature, and then the main control board 123 will turn off the auxiliary heating structure 22;

[0093] If the temperature of the electric control box is between the low-temperature threshold temperature and the high-temperature threshold temperature, it means that the electric control components in the electric control box are within the applicable temperature range, and the temperature control device does not start.

[0094] Embodiment 2

[0095] Referring to the appendix Figure 7-8 The present invention also provides an electric control box, and the outer side wall of the box body 1 of the electric control box is provided with the above-mentioned temperature control device.

[0096] In this way, when the electric control box works in a high-temperature environment such as a desert and the temperature of the electric control box exceeds the high-temperature threshold temperature set by itself, the main control board 123 will control the cooling medium to flow into the heat dissipation structure 21. Then, the cooling medium in the heat dissipation structure 21 will absorb the heat in the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually decreases to below the high-temperature threshold temperature. Compared with the heat dissipation method using an air-cooled fin radiator, the heat dissipation effect of this application will not drop linearly due to the reduction of the temperature difference between the heat dissipation structure 21 and the surrounding environment, and the electric control components in the electric control box will not suffer from high-temperature failure due to high temperature; and when the electric control box works in a low-temperature environment such as a plateau and the temperature of the electric control box is lower than the low-temperature threshold temperature set by itself, the main control board 123 will start the auxiliary heating structure 22. When the auxiliary heating structure 22 is powered on, it will generate heat, and the generated heat will be transferred to the inside of the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually rises to higher than the low-temperature threshold temperature to prevent the electric control components in the electric control box from suffering from low-temperature failure due to low temperature.

[0097] And the auxiliary heating structure 22 is arranged on the outermost side of the temperature control device. In this way, the heat generated by the auxiliary heating structure 22 will first pass through the temperature control device and then be transferred to the inside of the box body 1, preventing the temperature in the box body 1 from rising too fast and thus causing damage to the electric control components.

[0098] Among them, to ensure that the temperature control device can dissipate the heat generated by the heating elements in the electric control box in a timely manner, or the temperature control device can heat the low-temperature and easily heat-loss elements in the electric control box in a timely manner, refer to the appendix Figure 7-8 The box body 1 is further provided with a box door 3, and at least one temperature control device is closely attached to the outer side wall of the box body 1 facing away from the box door 3;

[0099] A first mounting plate 11 and a first mounting plate 12 forming a double-layer structure are further installed in the box body 1;

[0100] The first mounting plate 12 is located below the first mounting plate 11 and is closely attached to the inner side wall of the box body 1 facing away from the box door 3; that is, it is equivalent to only the outer side wall of the box body 1 facing away from the box door 3 between the temperature control device and the first mounting plate 12, realizing a back-to-back connection state.

[0101] The first mounting plate 11 is used to mount elements with stable temperature, and the front surface of the first mounting plate 12 facing the first mounting plate 11 is used to mount heating elements and low-temperature and easily heat-loss elements.

[0102] It should be noted that the elements with stable temperature, heating elements and low-temperature and easily heat-loss elements are all electric control elements in the electric control box.

[0103] In this way, the back surface of the second mounting plate 12 facing away from the first mounting plate 11 will be closely attached to the inner side wall of the box body 1 facing away from the box door 3, and a plurality of temperature control devices are provided on the outer side wall of the box body 1 facing away from the box door 3. In this way, the temperature control device can dissipate the heat generated by the heating elements in the box body 1 faster and more timely, or the temperature control device can heat and raise the temperature of the low-temperature and easily heat-loss elements in the box body 1 faster and more timely.

[0104] Among them, to further understand the heating elements and low-temperature and easily heat-loss elements in the electric control box, the heating elements and low-temperature and easily heat-loss elements include a drive board 121, a resistor 122, a main control board 123 and a rectifier bridge 124;

[0105] The elements with stable temperature include a filter board 111, a reactor 112 and a wiring row 113.

[0106] Among them, to ensure the modularization of the electric control elements in the electric control box and make the layout of the modular electric control elements more reasonable, so as to reduce the volume of the first mounting plate 11 and the first mounting plate 12, and further reduce the volume of the electric control box, refer to the appendix Figure 6-7 For the convenience of understanding, the present invention proposes a layout of the electric control elements in the electric control box:

[0107] Two filter boards 111 are arranged side by side on the upper side of the first mounting plate 11, and a reactor 112 and a wiring row 113 are arranged side by side on the lower side of the first mounting plate 11;

[0108] The first mounting plate 12 is successively provided with two vertically arranged resistors 122, two vertically arranged driving plates 121 and a main control board 123 along its X-axis direction, and at least a rectifier bridge 124 is further provided on the lower side of the first mounting plate 12 corresponding to the main control board 123.

[0109] It should be noted that the main control board 123 is electrically connected to the heat dissipation structure 21 and the auxiliary heat supply structure 22 respectively. In this way, when the temperature of the electric control box exceeds the high-temperature threshold temperature set by itself, the main control board 123 will start the heat dissipation structure 21; similarly, when the temperature of the electric control box is lower than the low-temperature threshold temperature set by itself, the main control board 123 will start the auxiliary heat supply structure 22.

[0110] Embodiment 3

[0111] The present utility model further proposes a liquid-cooled source air conditioner, and the liquid-cooled source air conditioner includes the above-mentioned electric control box.

[0112] In this way, when the liquid-cooled source air conditioner works in a high-temperature environment such as a desert and the temperature of the electric control box exceeds the high-temperature threshold temperature set by itself, the heat dissipation structure 21 will be started, and the cooling medium in the heat dissipation structure 21 will absorb the heat in the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually decreases to below the high-temperature threshold temperature. In this way, compared with the heat dissipation method using an air-cooled fin radiator, the heat dissipation effect of the present application will not drop linearly due to the reduction of the temperature difference between the heat dissipation structure 21 and the surrounding environment, and the electric control components in the electric control box will not fail due to high temperature caused by high temperature, so that the liquid-cooled source air conditioner operates stably; and when the liquid-cooled source air conditioner works in a low-temperature environment such as a plateau and the temperature of the electric control box is lower than the low-temperature threshold temperature set by itself, it is convenient to start the auxiliary heat supply structure 22, and the auxiliary heat supply structure 22 will generate heat when powered on, and the generated heat will be transferred to the inside of the box body 1 through the outer side wall of the box body 1, so that the temperature in the box body 1 gradually rises to above the low-temperature threshold temperature, so as to prevent the electric control components in the electric control box from failing due to low temperature caused by low temperature, so that the liquid-cooled source air conditioner operates stably.

[0113] Among them, to ensure the circulation operation of the cooling medium in the liquid-cooled source air conditioner, refer to the attached Figure 9 , the liquid-cooled source air conditioner further includes a first heat exchanger 4, a cooling medium storage tank 5, a second heat exchanger 6 and a compressor 7; and the reference numeral B in the attached Figure 9 is a temperature control device.

[0114] The liquid outlet of the first heat exchanger 4 is connected to the liquid inlet of the cooling medium storage tank 5, the liquid outlet of the cooling medium storage tank 5 is connected to the liquid inlet of the temperature control device, the liquid outlet of the temperature control device is connected to the liquid inlet of the second heat exchanger 6, and a compressor 7 is provided between the liquid outlet of the second heat exchanger 6 and the liquid inlet of the first heat exchanger 4;

[0115] A linear flow regulating valve 8 is provided between the liquid inlet of the temperature control device and the liquid outlet of the cooling medium storage tank 5.

[0116] It should be noted that the first heat exchanger 4 is preferably a condenser, and the second heat exchanger 6 is preferably an evaporator; and the linear flow regulating valve 8 is electrically connected to the main control board 123.

[0117] In this way, when it is necessary to start the heat dissipation structure 21, the main control board 123 will turn on the linear flow regulating valve 8, so that the cooling medium in the cooling medium storage tank 5 flows to the temperature control device, and the flow rate of the cooling medium flowing to the temperature control device is adjusted by controlling the opening of the linear flow regulating valve 8.

[0118] Therefore, the circulation path of the cooling medium of the liquid-cooled source air conditioner is as follows:

[0119] Starting from the compressor 7, it then flows through the first heat exchanger 4, the cooling medium storage tank 5, the flow equalizing channel 211, the heat dissipation microchannel 214, and the second heat exchanger 6 in sequence, and then returns to the compressor 7.

[0120] In other embodiments, referring to the appended Figure 10 (and the reference numeral B in the appended Figure 10 drawings is the temperature control device), the liquid-cooled source air conditioner further includes:

[0121] A check valve 9 provided between the liquid outlet of the cooling medium storage tank 5 and the liquid outlet of the temperature control device, and the check valve 9 is electrically connected to the main control board 123; the check valve 9 is used to prevent the cooling medium flowing out of the temperature control device from flowing back into the cooling medium storage tank 5 and prevent the temperature of the cooling medium in the cooling medium storage tank 5 from fluctuating;

[0122] An electronic expansion valve 10 provided between the liquid outlet of the temperature control device and the liquid inlet of the second heat exchanger 6, and the electronic expansion valve 10 is electrically connected to the main control board 123; the electronic expansion valve 10 is used to precisely adjust the flow rate of the cooling medium flowing out of the temperature control device to meet the heat dissipation requirements of the electric control box;

[0123] A low-pressure switch 11 provided between the liquid outlet of the second heat exchanger 6 and the liquid inlet of the compressor 7, and the low-pressure switch 11 is electrically connected to the main control board 123; the low-pressure switch 11 is used to continuously monitor the pressure level on the low-pressure side of the compressor 7. If the pressure level on the low-pressure side is lower than the set safety threshold, the low-pressure switch 11 will send a low-pressure signal to the main control board 123 to cause the main control board 123 to cut off the power supply of the compressor 7 to prevent the liquid-cooled source air conditioner from operating under low pressure;

[0124] A high-pressure switch 12 is provided between the liquid outlet of the compressor 7 and the liquid inlet of the first heat exchanger 4. The high-pressure switch 12 is electrically connected to the main control board 123. The high-pressure switch 12 is used to continuously monitor the pressure level on the high-pressure side of the compressor 7. When the pressure level on the high-pressure side exceeds the set safety threshold, the high-pressure switch 12 will send a high-pressure signal to the main control board 123, so that the main control board 123 cuts off the power supply of the compressor 7 to prevent overpressure damage to the liquid-cooled source air conditioner.

[0125] Obviously, the embodiments described above are only a part of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the drawings, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present invention in other related technical fields is equally within the scope of the patent protection of the present invention.

Claims

1. A temperature control device for an electric control box, characterized in that: include: A heat dissipation structure (21), an auxiliary heat structure (22), a bottom plate (23) and a cover plate (24); The heat dissipation structure (21) comprises a flow-averaging channel (211) and a heat dissipation microchannel (214); The side of the bottom plate (23) facing away from the cover plate (24) is used to be in close contact with the box body (1) of the electric control box, and the side of the cover plate (24) facing away from the bottom plate (23) is installed with an auxiliary heat structure (22); When the base plate (23) and the cover plate (24) are matched and covered, the flow balancing channel (211) and the heat dissipation microchannel (214) are formed in sequence on the opposite sides of the base plate (23) and the cover plate (24), and the flow balancing channel (211) is communicated with the liquid inlet of the temperature control device, and the heat dissipation microchannel (214) is communicated with the liquid outlet of the temperature control device.

2. The temperature control device according to claim 1, characterized in that: The heat dissipation structure (21) further comprises a first heat dissipation rib (212) and a second heat dissipation rib (213); The bottom plate (23) is provided with a first flow balancing groove (2111) near the liquid inlet of the temperature control device, and the cover plate (24) is provided with a second flow balancing groove (2112) corresponding to the first flow balancing groove (2111); The bottom plate (23) is provided with a plurality of first heat dissipation ribs (212) arranged side by side at the outlet of the first flow balancing groove (2111), adjacent first heat dissipation ribs (212) form a first heat dissipation groove (2141), and all the first heat dissipation grooves (2141) are in communication with the first flow balancing groove (2111); the cover plate (24) is provided with second heat dissipation ribs (213) in correspondence with the first heat dissipation ribs (212), adjacent second heat dissipation ribs (213) all form second heat dissipation grooves (2142), and the second heat dissipation grooves (2142) are in communication with the second flow balancing groove (2112); When the base plate (23) and the cover plate (24) are matched and covered, the first flow equalizing groove (2111) can be matched and covered with the second flow equalizing groove (2112) to form the flow equalizing channel (211), and the first heat dissipation groove (2141) can be matched and covered with the second heat dissipation groove (2142) to form the heat dissipation microchannel (214).

3. The temperature control device according to claim 2, characterized in that: The first flow balancing groove (2111) and the second flow balancing groove (2112) are both intermediate symmetrical structures.

4. The temperature control device according to claim 1, characterized in that: The auxiliary heating structure (22) comprises an auxiliary heating shell (221) and an auxiliary heating element (222); The bottom plate (23) and the cover plate (24) are both made of heat-conducting material; a heating auxiliary shell (221) is provided on the side of the cover plate (24) facing away from the bottom plate (23); and a heating auxiliary element (222) is inserted into the heating auxiliary shell (221).

5. The temperature control device according to claim 1, characterized in that: The side of the bottom plate (23) facing away from the cover plate (24) is recessed inward to form a placement groove (231), and a temperature sensor (25) is installed in the placement groove (231). The temperature sensor (25) is used to measure the temperature of the box body (1).

6. Electric control box, characterized in that, The outer side wall of the box body (1) of the electric control box is installed with a temperature control device according to any one of claims 1 to 5.

7. The electric control box according to claim 6, characterized in that: The box body (1) is also provided with a box door (3), and at least one temperature control device is closely attached to the outer side wall of the box body (1) facing away from the box door (3); A first mounting plate (11) and a second mounting plate (12) forming a double-layer structure are also installed in the box body (1); The second mounting plate (12) is located below the first mounting plate (11) and is in close contact with the inner wall of the box body (1) facing away from the box door (3); The first mounting plate (11) is used for mounting temperature-stable components, and the second mounting plate (12) is used for mounting heating components and low-temperature temperature-losing components.

8. The electric control box according to claim 7, characterized in that: The heating element and the low-temperature volatile element include a driving board (121), a resistor (122), a main control board (123) and a rectifier bridge (124); The temperature-stable components include a filter board (111), a reactor (112) and a wiring bank (113).

9. The electric control box according to claim 8, characterized in that: At least two filter plates (111) are arranged side by side on the upper side of the first mounting plate (11), and at least one reactor (112) and at least one wiring block (113) are arranged side by side on the lower side of the first mounting plate (11); The second mounting plate (12) is provided with at least two vertically arranged resistors (122), at least two vertically arranged drive plates (121) and at least one main control plate (123) in sequence along its X-axis direction, and at least one rectifier bridge (124) is also provided on the lower side of the second mounting plate (12) corresponding to the main control plate (123).

10. Liquid cooling source air conditioner, characterized in that: The liquid cooling source air conditioner comprises an electric control box as described in any one of claims 7-9.

11. The liquid cooling source air conditioner according to claim 10, characterized in that: The liquid cooling source air conditioner further comprises a first heat exchanger (4), a cooling medium storage tank (5), a second heat exchanger (6) and a compressor (7); The liquid outlet of the first heat exchanger (4) is connected to the liquid inlet of the cooling medium storage box (5), the liquid outlet of the cooling medium storage box (5) is connected to the liquid inlet of the temperature control device, the liquid outlet of the temperature control device is connected to the liquid inlet of the second heat exchanger (6), and a compressor (7) is provided between the liquid outlet of the second heat exchanger (6) and the liquid inlet of the first heat exchanger (4); A linear flow regulating valve (8) is provided between the liquid inlet of the temperature control device and the liquid outlet of the cooling medium storage box (5).

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