Water cooling plate and unit frequency converter comprising same

Abstract

The utility model discloses a water cooling plate and a unit frequency converter comprising the same, and belongs to the technical field of frequency converter heat dissipation. The device comprises an absorber plate; the heat dissipation plate is fixedly arranged on one side of the heat absorption plate; the turbulent flow assembly is fixedly arranged on the side, close to the heat dissipation plate, of the heat absorption plate, the turbulent flow assembly comprises a first turbulent flow plate and a second turbulent flow plate, and the first turbulent flow plate and the second turbulent flow plate are matched with the heat absorption plate to form a heat exchange channel; due to the fact that the first spoiler and the second spoiler are adopted to form the heat exchange channel, when the heat exchange channel conveys cooling liquid, the cooling liquid is subjected to spoiler through the spoiler structures of the first spoiler and the second spoiler, other spoiler structures do not need to be additionally arranged, the problem that heat exchange pipes are abraded due to loosening of the spoiler is solved, and the heat exchange efficiency is improved. And therefore, the heat exchange tube and the turbulent flow structure are arranged into a whole to prevent mutual interference.

Description

Technical Field

[0001] The present application relates to the technical field of inverter heat dissipation, and more specifically, to a water cooling plate and a unit inverter containing the water cooling plate. Background Art

[0002] The inverter is an electronic device used to adjust the speed of the motor. It controls the running speed and torque of the motor by changing the grid voltage and frequency. The basic structure of the inverter includes a rectifier, an intermediate DC link and an inverter; the water cooling plate is part of the inverter heat dissipation system, especially in high-power inverters. It uses water as a cooling medium, which circulates through the channels in the water cooling plate to take away the heat generated by the inverter during operation; compared with traditional air cooling, the water cooling plate can dissipate heat more effectively, especially in situations where space is limited or the ambient temperature is high.

[0003] In the related art, in order to improve the heat exchange efficiency of the water-cooled plate, for example, the patent with the prior art publication number CN218633673U provides a water-cooled plate for a wind turbine inverter. The water-cooled plate is provided with a spiral spoiler inside the heat exchange tube so that the spoiler is attached to the inner wall of the heat exchange tube, and a suitable length is selected to ensure that the spoiler does not move left and right when the coolant passes through. The spoiler can increase the heat exchange rate of the medium. On the one hand, it reduces the flow rate and increases the heat exchange time. On the other hand, the spoiler is attached to the inner wall of the heat exchange tube for heat conduction, which indirectly increases the heat exchange area and increases the heat conduction efficiency per unit time.

[0004] Although the above-mentioned prior art solutions can improve the heat exchange performance of the water-cooled plate by reducing the flow rate and increasing the heat exchange area through the spoiler, the spoiler needs to be of a suitable length during use and must fit closely with the inner wall of the heat exchange tube. The assembly size and assembly operation of the spoiler are relatively high. If the spoiler becomes loose or moves inside the heat exchange tube, it will be difficult to detect, which will cause wear on the inner wall of the heat exchange tube, reduce the service life of the heat exchange tube, and reduce the safety of use. Utility Model Content

[0005] The purpose of the present application is to provide a water-cooled plate and a unit inverter containing the water-cooled plate, which solves the technical problem that loose spoiler may cause wear to heat exchange tubes, and achieves the technical effect of integrating heat exchange tubes and spoiler structures to prevent mutual interference.

[0006] One aspect of the present application provides a water cooling plate, comprising:

[0007] Heat absorbing plate;

[0008] The heat dissipation plate is fixedly arranged on one side of the heat absorption plate;

[0009] A spoiler assembly is fixedly arranged on a side of the heat absorbing plate close to the heat dissipating plate, the spoiler assembly comprises a first spoiler and a second spoiler, the first spoiler and the second spoiler cooperate with the heat absorbing plate to form a heat exchange channel;

[0010] The sealing plate is used to encapsulate the heat absorbing plate, the heat dissipating plate and the spoiler assembly. The heat absorbing plate and the heat dissipating plate are respectively arranged on both sides of the sealing plate. The outer side of the sealing plate is provided with a pipeline assembly for supplying liquid to the heat exchange channel.

[0011] As an optional solution of the technical solution of the present application document, the first spoiler and the second spoiler are both wavy or zigzag, and the heat exchange channel is wavy or zigzag along the flow direction of the coolant.

[0012] As an optional solution to the technical solution of the present application document, the end face of the heat exchange channel is an isosceles triangle structure, and a plurality of assembly grooves are provided on the side of the heat absorption plate close to the spoiler assembly, the inner side of the assembly groove cooperates with the end face of the heat exchange channel, and the assembly groove is wavy or serrated.

[0013] As an optional solution of the technical solution of the present application document, a plurality of heat dissipation fins are arranged on the side of the heat dissipation plate away from the spoiler assembly, and the heat dissipation fins are arranged in a wavy or zigzag shape parallel to the spoiler assembly.

[0014] As an optional solution to the technical solution of the present application document, a sealing block is fixedly provided on the end of the inner side of the sealing plate corresponding to the assembly groove, and the sealing block is sealed with the inner side of the assembly groove and the end of the heat exchange channel. A liquid inlet is opened on the inner side of the sealing block, and the liquid inlet is connected to the pipeline assembly.

[0015] As an optional solution to the technical solution of the present application document, a gap is left between the end of the heat exchange channel away from the pipe assembly and the inner side of the sealing plate, a reflux channel is formed between the first spoiler and the second spoiler and the heat sink, and a liquid outlet is opened on one side of the sealing plate corresponding to the reflux channel, and the liquid outlet is connected to the pipe assembly.

[0016] As an optional solution of the technical solution of the present application document, the pipeline assembly includes a liquid outlet pipe and a liquid inlet pipe, the liquid outlet pipe and the liquid inlet pipe are respectively connected to the liquid outlet and the liquid inlet, the other ends of several of the liquid inlet pipes are fixedly connected to the same diverter, and a liquid supply pipe is fixedly arranged on the outside of the diverter.

[0017] Another aspect of the present application also provides a unit inverter, including the aforementioned water cooling plate.

[0018] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0019] (1) In the present application, the first spoiler and the second spoiler are used to form a heat exchange channel. When the heat exchange channel transports the coolant, the first spoiler and the second spoiler's own spoiler structures turbulently flow the coolant. No additional spoiler structures are required, which solves the problem of loose spoilers causing wear to the heat exchange tubes. The heat exchange tubes and the spoiler structures are integrated to prevent interference with each other.

[0020] (2) The present application provides a spoiler assembly between the heat absorbing plate and the heat dissipating plate. The heat exchange channel in the spoiler assembly can be used to input the coolant, and the reflux channel formed by the first spoiler, the second spoiler and the heat dissipating plate can be used to output the coolant, so that the heat absorbing plate, the heat dissipating plate, the spoiler assembly and the sealing plate can automatically form a circulation path after being sealed and assembled with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a water cooling plate disclosed in a preferred embodiment of the present application;

[0022] Figure 2 This is a schematic diagram of the structure of a spoiler assembly in a water cooling plate disclosed in a preferred embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of a heat absorbing plate in a water cooling plate disclosed in a preferred embodiment of the present application;

[0024] Figure 4 This is a schematic diagram of the structure of a heat sink in a water cooling plate disclosed in a preferred embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the assembly structure of the heat sink and the sealing plate in the water cooling plate disclosed in a preferred embodiment of the present application;

[0026] Figure 6 This is a schematic diagram of the assembly structure of a heat absorbing plate and a sealing plate in a water cooling plate disclosed in a preferred embodiment of the present application.

[0027] Description of the numbers in the figure:

[0028] 1. Heat absorbing plate;

[0029] 2. heat sink; 21. assembly slot; 22. heat sink fin;

[0030] 3. spoiler assembly; 31. first spoiler; 32. second spoiler; 33. heat exchange channel;

[0031] 4. Sealing plate; 41. Sealing block; 42. Liquid inlet; 43. Liquid outlet; 44. Liquid outlet pipe; 45. Liquid inlet pipe; 46. Diverter; 47. Liquid supply pipe. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] Reference below Figure 1-Figure 6 The water cooling plate, the unit inverter containing the water cooling plate and the working principle thereof recorded in the embodiments of the present application are described.

[0034] Reference Figure 1 , Figure 2 and Figure 3 The embodiment of the present application discloses a water-cooled plate, including a heat absorbing plate 1, a spoiler assembly 3 is provided on one side of the heat absorbing plate 1, a heat dissipation plate 2 is provided on the side of the spoiler assembly 3 away from the heat absorbing plate 1, the spoiler assembly 3 includes a first spoiler 31 and a second spoiler 32, the first spoiler 31 and the second spoiler 32 are both fixedly connected to the heat absorbing plate 1, and a heat exchange channel 33 is formed between the first spoiler 31, the second spoiler 32 and the heat absorbing plate 1, the heat absorbing plate 1 and the heat dissipation plate 2 are both fixedly arranged on the inner side of a sealing plate 4, and a pipeline assembly for supplying liquid to the heat exchange channel 33 is provided on the outer side of the sealing plate 4.

[0035] The cooling liquid is input into the heat exchange channel 33 through the pipe assembly on the outside of the sealing plate 4. When the heat absorbing plate 1 absorbs heat, it can be transferred to the first spoiler plate 31 and the second spoiler plate 32. At this time, the cooling liquid in the heat exchange channel 33 can absorb and transfer the heat transferred by the heat absorbing plate 1, the first spoiler plate 31 and the second spoiler plate 32. When the cooling liquid passes through the heat exchange channel 33, the flow velocity can be slowed down and the length of the heat exchange channel 33 can be increased due to the turbulence effect of the first spoiler plate 31 and the second spoiler plate 32, thereby improving the heat exchange effect.

[0036] In order to achieve the spoiling effect of the first spoiler 31 and the second spoiler 32, refer to Figure 2 and Figure 3 The first spoiler 31 and the second spoiler 32 are both wavy or zigzag, and the heat exchange channel 33 is wavy or zigzag along the flow direction of the coolant.

[0037] By providing the wavy or zigzag shaped first spoiler 31 and second spoiler 32, the coolant changes its flow direction continuously when flowing along the first spoiler 31 and second spoiler 32, which has an obstructive effect on the coolant and increases the contact area with the coolant, thereby achieving efficient heat dissipation.

[0038] In order to facilitate the mutual assembly of the spoiler assembly 3 and the heat sink 2, refer to Figure 3 and Figure 4 The end face of the heat exchange channel 33 is an isosceles triangle structure. A plurality of assembly grooves 21 are provided on one side of the heat absorbing plate 1 close to the spoiler assembly 3. The inner side of the assembly groove 21 cooperates with the end face of the heat exchange channel 33, and the assembly groove 21 is wavy or serrated.

[0039] When assembling the spoiler component 3 and the heat sink 2, assemble the assembly groove 21 corresponding to one side of the spoiler component 3, which has a positioning and assembly function for the spoiler component 3 and the heat sink 2, and the spoiler component 3 is fixed to the outside of the heat absorbing plate 1, and has a positioning function for the heat absorbing plate 1 and the heat sink 2, so as to facilitate production and assembly.

[0040] In order to make the heat dissipation of the heat sink 2 normal, refer to Figure 1 , Figure 2 and Figure 4 A plurality of heat dissipation fins 22 are arranged on one side of the heat dissipation plate 2 away from the spoiler assembly 3 , and the heat dissipation fins 22 are arranged parallel to the spoiler assembly 3 in a wavy or zigzag shape.

[0041] The heat dissipation area is increased by arranging the heat dissipation fins 22 on the outside of the heat dissipation plate 2, so that the heat dissipation plate 2 can effectively exchange heat when combined with air cooling, and the wavy or serrated heat dissipation fins 22 can be directly formed in one piece by a milling machine, which is convenient for production and processing.

[0042] In order to realize the sealing assembly of the heat sink 2 and the sealing plate 4, refer to Figure 4 and Figure 5 A sealing block 41 is fixedly provided on the inner side of the sealing plate 4 at the end of the assembly groove 21. The sealing block 41 is sealed with the inner side of the assembly groove 21 and the end of the heat exchange channel 33. A liquid inlet 42 is opened on the inner side of the sealing block 41, and the liquid inlet 42 is connected to the pipeline assembly.

[0043] The sealing block 41 cooperates with the assembly groove 21 to ensure the sealing performance of the sealing plate 4 and the heat dissipation plate 2. When the heat absorbing plate 1 is assembled on the other side of the sealing plate 4, the spoiler assembly 3 on the outside of the heat absorbing plate 1 is assembled corresponding to the assembly groove 21. At the same time, the end of the heat exchange channel 33 is sealed corresponding to the sealing block 41, so that the pipeline assembly inputs coolant into the heat exchange channel 33 through the liquid inlet 42, so that the three are sealed and connected to each other.

[0044] In order to allow the coolant to circulate inside the sealing plate 4, refer to Figure 5 and Figure 6 A gap is left between the end of the heat exchange channel 33 away from the pipeline assembly and the inner side of the sealing plate 4, a reflux channel is formed between the first spoiler 31 and the second spoiler 32 and the heat sink 2, and a liquid outlet 43 is opened on one side of the sealing plate 4 corresponding to the reflux channel, and the liquid outlet 43 is connected to the pipeline assembly.

[0045] When the coolant inside the heat exchange channel 33 flows out, it flows to the outside of the heat exchange channel 33 through the gap between the heat exchange channel 33 and the sealing plate 4, and then enters the reflux channel formed by the spoiler assembly 3 and the heat sink 2, so that the coolant after heat exchange flows through the reflux channel to the liquid outlet 43 and is discharged, thereby achieving a circulating flow effect of the coolant.

[0046] In order to realize the liquid supply function of the pipeline assembly to the sealing plate 4, refer to Figure 1 , Figure 5 and Figure 6 The pipeline assembly includes a liquid outlet pipe 44 and a liquid inlet pipe 45, which are respectively connected to the liquid outlet 43 and the liquid inlet 42. The other ends of the plurality of liquid inlet pipes 45 are fixedly connected to the diverter 46, and a liquid supply pipe 47 is fixedly arranged on the outside of the diverter 46.

[0047] Cooling liquid is input into the diverter 46 through the liquid supply pipe 47, so that the diverter 46 diverts the cooling liquid to the liquid inlet pipe 45, so that several liquid inlet pipes 45 provide cooling liquid to several heat exchange channels 33 at the same time, and the cooling liquid can be discharged through the liquid outlet pipe 44 after heat exchange to meet the normal use of the sealing plate 4.

[0048] Reference Figure 1-Figure 6 The embodiment of the present application discloses a unit inverter, including the above-mentioned water cooling plate.

[0049] In summary, when the water-cooled plate disclosed in the embodiment of the present application is in use, coolant is input into the diverter 46 through the liquid supply pipe 47, so that the diverter 46 diverts the coolant to the liquid inlet pipe 45, so that several liquid inlet pipes 45 simultaneously provide coolant to several heat exchange channels 33. When the coolant passes through the heat exchange channel 33, the coolant changes its flow direction while flowing along the first spoiler 31 and the second spoiler 32 through the wavy or zigzag shape, which has an obstructive effect on the coolant and increases the contact area with the coolant. When the coolant in the heat exchange channel 33 flows out, it flows to the outside of the heat exchange channel 33 through the gap between the heat exchange channel 33 and the sealing plate 4, and then enters the reflux channel formed by the spoiler assembly 3 and the heat sink 2, so that the coolant after heat exchange flows to the liquid outlet 43 through the reflux channel and is discharged, thereby realizing the circulation effect of the coolant and effectively assisting the unit inverter in heat dissipation.

[0050] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0051] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. Water cooling plate, characterized in that: Include: Heat absorbing plate; The heat dissipation plate is fixedly arranged on one side of the heat absorption plate; A spoiler assembly is fixedly arranged on a side of the heat absorbing plate close to the heat dissipating plate, the spoiler assembly comprises a first spoiler and a second spoiler, the first spoiler and the second spoiler cooperate with the heat absorbing plate to form a heat exchange channel; A sealing plate is used to encapsulate the heat absorbing plate, the heat dissipating plate and the spoiler assembly, wherein the heat absorbing plate and the heat dissipating plate are respectively arranged on both sides of the sealing plate, and A pipeline assembly for supplying liquid to the heat exchange channel is arranged on the outer side of the sealing plate.

2. The water cooling plate according to claim 1, characterized in that: The first spoiler and the second spoiler are both wavy or zigzag in shape, and the heat exchange channel is wavy or zigzag in shape along the flow direction of the coolant.

3. The water cooling plate according to claim 2, characterized in that: The end face of the heat exchange channel is a triangular structure, and a plurality of assembly grooves are provided on a side of the heat absorption plate close to the spoiler assembly. The inner side of the assembly groove cooperates with the end face of the heat exchange channel, and the assembly groove is wavy or serrated.

4. The water cooling plate according to claim 3, characterized in that: A plurality of heat dissipation fins are arranged on one side of the heat dissipation plate away from the spoiler assembly, and the heat dissipation fins are arranged in a wavy or zigzag shape parallel to the spoiler assembly.

5. The water cooling plate according to claim 3, characterized in that: A sealing block is fixedly arranged at the end of the assembly groove corresponding to the inner side of the sealing plate, and the sealing block is sealed with the inner side of the assembly groove and the end of the heat exchange channel. A liquid inlet is opened on the inner side of the sealing block, and the liquid inlet is connected to the pipeline assembly.

6. The water cooling plate according to claim 5, characterized in that: A gap is left between the end of the heat exchange channel away from the pipeline assembly and the inner side of the sealing plate, a reflux channel is formed between the first spoiler and the second spoiler and the heat dissipation plate, a liquid outlet is opened on one side of the sealing plate corresponding to the reflux channel, and the liquid outlet is connected to the pipeline assembly.

7. The water cooling plate according to claim 6, characterized in that: The pipeline assembly includes a liquid outlet pipe and a liquid inlet pipe, which are respectively connected to the liquid outlet and the liquid inlet, and the other ends of several liquid inlet pipes are fixedly connected to the same diverter, and a liquid supply pipe is fixedly arranged on the outside of the diverter.

8. The unit frequency converter is characterized in that: It comprises the water cooling plate described in any one of claims 1 to 7.

Images