Cooling structure and motor controller

Abstract

According to the scheme, the motor controller comprises a cooling structure, the cooling structure comprises a first shell and is provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel comprises a first water inlet and a first water outlet which are communicated with each other, and the second heat dissipation channel comprises a first water inlet and a second water outlet which are communicated with each other; the first heat dissipation channel and the second heat dissipation channel can be attached to the power module so that heat of the power module can be guided out to the first heat dissipation channel and / or the second heat dissipation channel. The second shell is connected with the first shell, the second shell is provided with a third heat dissipation channel, the third heat dissipation channel comprises a second water inlet and a third water outlet which are communicated with each other, the first heat dissipation channel is communicated with the third heat dissipation channel, and the third heat dissipation channel is attached to the capacitor so that heat of the capacitor can be guided out to the third heat dissipation channel. According to the scheme, the use adaptability can be improved through the multiple heat dissipation channels.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a cooling structure and a motor controller. Background Art

[0002] At present, filters and capacitors in existing motor controllers mostly adopt split-type rigid connection, which has the problems of high cost, heavy weight and low integration. Summary of the invention

[0003] The main purpose of the present invention is to provide a cooling structure and a motor controller, aiming to improve the adaptability of use by utilizing multiple heat dissipation channels.

[0004] To achieve the above object, the present invention provides a cooling structure, comprising:

[0005] The first housing is provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel includes a first water inlet and a first water outlet that are interconnected, the second heat dissipation channel includes the first water inlet and the second water outlet that are interconnected, the first heat dissipation channel and the second heat dissipation channel can be respectively arranged in close contact with the power module to conduct heat of the power module to the first heat dissipation channel and / or the second heat dissipation channel;

[0006] The second shell is connected to the first shell, the second shell is provided with a third heat dissipation channel, the third heat dissipation channel includes a second water inlet and a third water outlet connected to each other, the first heat dissipation channel is connected to the third heat dissipation channel, and the third heat dissipation channel is arranged in close contact with the capacitor to export the heat of the capacitor to the third heat dissipation channel.

[0007] In one embodiment, the first shell and the second shell are detachably connected.

[0008] In one embodiment, the first housing and the second housing have a first position and a second position;

[0009] When located at the first position, the first shell and the second shell are arranged side by side, and the first heat dissipation channel is connected to the third heat dissipation channel;

[0010] When located at the second position, the first shell is located above the second shell, and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

[0011] In one embodiment, the first heat dissipation channel further includes a first accommodating chamber and a fourth water outlet, the first water inlet, the first accommodating chamber, the first water outlet and the fourth water outlet are connected in sequence, the third water outlet, the fourth water outlet and the third heat dissipation channel are connected in sequence, the second heat dissipation channel further includes a second accommodating chamber, the first water inlet, the second accommodating chamber and the second water outlet are connected in sequence, and the first accommodating chamber and the second accommodating chamber are both used to place a power module.

[0012] In one embodiment, the first shell includes a first side plate, a second side plate, a third side plate, a fourth side plate, a partition plate and a first bottom plate, the first side plate, the second side plate, the third side plate, the fourth side plate and the first bottom plate are sequentially connected to enclose a first accommodating space, the first side plate is arranged opposite to the second side plate, the third side plate is arranged opposite to the fourth side plate, the partition plate is located in the first accommodating space, the partition plate is located above the first bottom plate, the partition plate divides the first accommodating space into the first accommodating cavity and the second accommodating cavity, the first accommodating cavity is located above the second accommodating cavity, the first water inlet is arranged on the first side plate, the first water outlet is provided on a side of the second side plate opposite to the first side plate, the second water outlet is provided on the first bottom plate, and the fourth water outlet is provided on a side of the second side plate for connecting with the second shell.

[0013] In one embodiment, the third heat dissipation channel further includes a third accommodating cavity, the second water inlet, the third accommodating cavity and the third water outlet are sequentially connected, and the third accommodating cavity is used to place a capacitor.

[0014] In one embodiment, the second shell includes a fifth side plate, a sixth side plate, a seventh side plate, an eighth side plate and a second bottom plate, the fifth side plate, the sixth side plate, the seventh side plate, the eighth side plate and the second bottom plate are sequentially connected to enclose the third accommodating cavity, the fifth side plate is arranged opposite to the sixth side plate, the seventh side plate is arranged opposite to the eighth side plate, the second water inlet is opened on a side of the fifth side plate connected to the first shell, the third water outlet is opened on the eighth side plate, the seventh side plate and the eighth side plate are both opened with strip holes, the second water inlet, the strip holes, the third accommodating cavity and the third water outlet are sequentially connected.

[0015] In one embodiment, the seventh side plate is recessed to form a first mounting groove, and the first mounting groove can be used to place the magnetic ring.

[0016] In one embodiment, the eighth side plate is recessed to form a second mounting groove, and the second mounting groove can be used to place the magnetic ring.

[0017] In one embodiment, the second bottom plate is provided with a fifth water outlet, and the fifth water outlet is communicated with the third accommodating cavity;

[0018] The cooling structure also includes a first blocking member, a second blocking member and a third blocking member;

[0019] When located at the first position, the first blocking member is disposed at the second water outlet to block the second water outlet, the third blocking member cover is disposed at the fifth water outlet, and the second blocking member cover is disposed on the first accommodating cavity or the second accommodating cavity to block the first accommodating cavity or the second accommodating cavity;

[0020] When located at the second position, the second water outlet is connected to the fifth water outlet, and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

[0021] The present invention also relates to a motor controller, the motor controller comprises the above-mentioned cooling structure, the cooling structure comprises a first shell, provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel comprises a first water inlet and a first water outlet which are interconnected, the second heat dissipation channel comprises the first water inlet and the second water outlet which are interconnected, the first heat dissipation channel and the second heat dissipation channel can be respectively arranged in close contact with a power module to export the heat of the power module to the first heat dissipation channel and / or the second heat dissipation channel;

[0022] The second shell is connected to the first shell, the second shell is provided with a third heat dissipation channel, the third heat dissipation channel includes a second water inlet and a third water outlet connected to each other, the first heat dissipation channel is connected to the third heat dissipation channel, and the third heat dissipation channel is arranged in close contact with the capacitor to export the heat of the power module to the third heat dissipation channel.

[0023] The present invention further proposes a motor controller, which adopts all the technical solutions of all the above embodiments, and thus also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0024] The present invention discloses a cooling structure. The cooling structure is designed to have a first shell and a second shell, and to respectively set a plurality of heat dissipation channels, and to ensure that these heat dissipation channels can be directly attached to the power module and the capacitor to efficiently conduct heat. The first shell is provided with a first heat dissipation channel, and the first channel includes a first water inlet and a first water outlet that are interconnected, and is used for the entry and exit of the coolant. The second heat dissipation channel includes a first water inlet and a second water outlet that are interconnected, and is also used for the entry and exit of the coolant. The first heat dissipation channel and the second heat dissipation channel can be respectively attached to the power module to ensure that the heat can be directly conducted to the coolant. The second shell is provided with a third heat dissipation channel, and the third heat dissipation channel includes a second water inlet and a third water outlet that are interconnected, and are used for the entry and exit of the coolant. The third heat dissipation channel is attached to the capacitor to ensure that the heat generated by the capacitor can be directly conducted to the coolant, and the first heat dissipation channel is connected to the third heat dissipation channel to form a wider cooling circuit. Users can choose the most suitable cooling path according to actual conditions, providing higher flexibility. For example, in some cases, you can choose to use only the first heat dissipation channel, the second heat dissipation channel, or the third heat dissipation channel; in other cases, you can choose to connect them to form a wider cooling circuit. Each heat dissipation channel can be operated independently, which is convenient for maintenance and upgrading, and enhances the adaptability and scalability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the structure of an embodiment of a cooling structure provided by the present invention;

[0027] Figure 2 for Figure 1 Schematic diagram of structural decomposition;

[0028] Figure 3 A schematic structural diagram of another embodiment of the cooling structure provided by the present invention;

[0029] Figure 4 A schematic structural diagram of another embodiment of the cooling structure provided by the present invention;

[0030] Figure 5 This is a schematic structural diagram of another embodiment of the cooling structure provided by the present invention.

[0031] Description of Figure Numbers:

[0032] 10. First shell; 101. First side plate; 102. Second side plate; 103. Third side plate; 104. Fourth side plate; 105. Partition plate; 106. First bottom plate; 11. First water inlet; 12. First water outlet; 13. Second water outlet; 14. First accommodating chamber; 15. Fourth water outlet; 16. Second accommodating chamber; 20. Second shell; 201. Fifth side plate; 202. Sixth side plate; 203. Seventh side plate; 204. Eighth side plate; 205. Second bottom plate; 206. Strip hole; 207. First mounting groove; 208. Second mounting groove; 209. Fifth water outlet; 21. Second water inlet; 22. Third water outlet; 23. Third accommodating chamber; 30. First blocking member; 40. Second blocking member; 50. Third blocking member.

[0033] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] The invention provides a cooling structure and a motor controller.

[0038] Reference Figure 1 to Figure 5 In an embodiment of the present invention, a cooling structure includes:

[0039] The first housing 10 is provided with a first heat dissipation channel and a second heat dissipation channel, wherein the first heat dissipation channel includes a first water inlet 11 and a first water outlet 12 which are interconnected, and the second heat dissipation channel includes the first water inlet 11 and the second water outlet 13 which are interconnected, and the first heat dissipation channel and the second heat dissipation channel can be respectively arranged in close contact with the power module to conduct heat of the power module to the first heat dissipation channel and / or the second heat dissipation channel;

[0040] The second shell 20 is connected to the first shell 10, and the second shell 20 is provided with a third heat dissipation channel, and the third heat dissipation channel includes a second water inlet 21 and a third water outlet 22 that are connected to each other. The first heat dissipation channel is connected to the third heat dissipation channel, and the third heat dissipation channel is arranged in close contact with the capacitor to export the heat of the capacitor to the third heat dissipation channel.

[0041] The cooling structure scheme is an efficient heat dissipation system specially designed for motor controllers. Specifically, the coolant enters the first housing 10 through the first water inlet 11, and then is divided into two paths, flowing into the first heat dissipation channel and the second heat dissipation channel respectively. In these channels, after the coolant absorbs the heat from the power module, it flows out through the first water outlet 12 and the second water outlet 13 respectively, taking away the heat. For the second housing 20, which is connected to the first housing 10, an independent third heat dissipation channel is provided. The coolant enters the third heat dissipation channel through the second water inlet 21, absorbs the heat generated by the capacitor, and flows out through the third water outlet 22. When the coolant flows through the heat dissipation channel, it is in close contact with the heating element (such as the power module and the capacitor), and takes away the heat through heat conduction. The design of the heat dissipation channel enables the coolant to flow with minimal resistance, thereby ensuring efficient heat exchange. Among them, the first housing 10 is provided with two independent heat dissipation channels, the first heat dissipation channel and the second heat dissipation channel. The two channels share the same water inlet (the first water inlet 11), but each has a different water outlet (the first water outlet 12 and the second water outlet 13). This design simplifies the coolant input path and allows the flow rate in each channel to be adjusted separately as needed, which helps to achieve uniform coolant distribution. Each heat dissipation channel has an independent water outlet, and the flow rate of the coolant can be adjusted according to the needs of different channels to optimize the cooling effect. The second housing 20 is connected to the first housing and is provided with a third heat dissipation channel, which has an independent water inlet (second water inlet 21) and a water outlet (third water outlet 22), and is fitted with the capacitor and is specifically used to handle the heat generated by the capacitor. The first heat dissipation channel and the second heat dissipation channel are directly fitted with the power module to ensure that the heat can be quickly conducted to the coolant. The third heat dissipation channel focuses on providing heat dissipation support for the capacitor, solving the heat dissipation problem of the capacitor under high frequency and high current operation. By setting the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel, the surface area of ​​the coolant in contact with the heating element is significantly increased, thereby improving the heat exchange efficiency, providing multiple independent cooling paths, and ensuring that each heating element can be fully cooled. Multiple heat dissipation channels can work simultaneously, providing parallel cooling paths, and enhancing the cooling capacity and redundancy of the system. The multi-channel design provides greater flexibility, and the cooling capacity of each channel can be adjusted according to actual needs, which is also convenient for future upgrades or adding additional cooling needs. For example, in some cases, you can choose to use only the first cooling channel, the second cooling channel, or the third cooling channel; in other cases, you can choose to connect them to form a wider cooling loop. Each cooling channel can be operated independently, which is convenient for maintenance and upgrades, and enhances the adaptability and scalability of the system.

[0042] Reference Figure 1 to Figure 5 In the embodiment of the present invention, the first shell 10 and the second shell 20 are detachably connected.

[0043] This design allows the heat dissipation channels to be added or modified according to actual needs, such as adding new heat dissipation modules or upgrading existing components. Different application scenarios may have different heat dissipation requirements, and the detachable connection enables the system to adapt to different working conditions more flexibly.

[0044] Reference Figure 1 to Figure 5 In the embodiment of the present invention, the first housing 10 and the second housing 20 have a first position and a second position;

[0045] When located at the first position, the first housing 10 and the second housing 20 are arranged side by side, and the first heat dissipation channel is connected to the third heat dissipation channel;

[0046] When located at the second position, the first housing 10 is located above the second housing 20 , and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

[0047] The cooling structure scheme realizes a flexible coolant flow path and optimizes the heat dissipation effect by designing different configurations of the first shell 10 and the second shell 20 at different positions (the first position and the second position). The first position is a side-by-side arrangement, in which the first shell 10 and the second shell 20 are arranged side by side. The first water outlet 12 of the first heat dissipation channel is connected to the second water inlet 21 of the third heat dissipation channel to form a series cooling circuit. Specifically, the coolant enters the first heat dissipation channel from the first water inlet 11, absorbs the heat from the power module, and then flows out through the first water outlet 12. The coolant flowing out of the first heat dissipation channel directly enters the second water inlet 21 of the third heat dissipation channel, continues to absorb the heat generated by the capacitor, and finally, the coolant flows out through the third water outlet 22 to complete the heat exchange process. At the same time, part of the coolant enters the second heat dissipation channel from the first water inlet 11, absorbs the heat from the power module, and then flows out through the second water outlet 13. This configuration allows the coolant to flow through different heat dissipation channels in sequence in a continuous path, ensuring that each heating element can be fully cooled. By directly connecting three independent heat dissipation channels, the need for additional pipes is reduced, the system structure is simplified, and the risk of leakage is reduced. The coolant can handle multiple heating elements in the same cycle, which improves the cooling efficiency. The side-by-side arrangement makes the entire cooling structure more compact, saves space, and is suitable for application scenarios with limited installation space. When in the second position, the first housing 10 is located above the second housing 20. The first heat dissipation channel, the second heat dissipation channel, and the third heat dissipation channel are connected in sequence to form a wider cooling circuit. Specifically, the coolant enters from the first water inlet 11 and flows through the first heat dissipation channel, the second heat dissipation channel, and the third heat dissipation channel, while absorbing heat from the two power modules and the capacitor. The coolant after absorbing heat flows out through their respective outlets (the first outlet 12, the second outlet 13, and the third outlet 22), and can then be further processed or returned to the cooling tower. This configuration allows the coolant to flow through multiple heat dissipation channels at the same time, providing a larger cooling area and higher cooling capacity. When a stronger cooling effect is required, the demand can be met by increasing the coolant flow rate or adjusting the flow rate. This cooling structure scheme realizes two different cooling modes by designing different configurations of the first shell 10 and the second shell 20 in different positions: the first position (side by side arrangement): suitable for application scenarios that require compact design and efficient cooling, and ensures that each heating element can be fully cooled through the series cooling path. The second position (the first shell is located above the second shell): suitable for application scenarios that require higher cooling capacity and flexibility, and provides a larger cooling area and higher cooling efficiency through parallel cooling paths. This design scheme not only improves the flexibility and adaptability of the cooling system, but also ensures the efficiency and reliability of the system, and is suitable for a variety of different application scenarios and working conditions.

[0048] Reference Figure 1 to Figure 5In the embodiment of the present invention, the first heat dissipation channel further includes a first accommodating chamber 14 and a fourth water outlet 15, the first water inlet 11, the first accommodating chamber 14, the first water outlet 12 and the fourth water outlet 15 are sequentially connected, the third water outlet 22 and the fourth water outlet 15 are sequentially connected to the third heat dissipation channel, the second heat dissipation channel further includes a second accommodating chamber 16, the first water inlet 11, the second accommodating chamber 16 and the second water outlet 13 are sequentially connected, and the first accommodating chamber 14 and the second accommodating chamber 16 are both used to place power modules.

[0049] The cooling structure scheme further optimizes the design of the heat dissipation channel by introducing the first accommodating chamber 14 and the second accommodating chamber 16, so that the power module can contact the coolant more effectively. Specifically, the first heat dissipation channel also includes a first accommodating chamber 14 for placing the power module. The first water inlet 11 is connected to the fourth water outlet 15 through the first accommodating chamber 14. The coolant flowing out of the first accommodating chamber 14 is discharged through the fourth water outlet 15. The third water outlet 22 is connected to the third heat dissipation channel through the fourth water outlet 15 to form a series cooling path. The second heat dissipation channel also includes a second accommodating chamber 16 for placing another power module. The first water inlet 11 is connected to the second water outlet 13 through the second accommodating chamber 16. The coolant flowing out of the second accommodating chamber 16 is discharged through the second water outlet 13. By placing the power module in the first accommodating chamber 14 and the second accommodating chamber 16, it is ensured that the coolant can directly contact the heating element, reduce thermal resistance, and improve heat conduction efficiency. The first heat dissipation channel is connected to the third heat dissipation channel through the fourth water outlet 15, forming a series cooling path; while the second heat dissipation channel remains independent, providing parallel cooling.

[0050] Reference Figure 1 to Figure 5In the embodiment of the present invention, the first shell 10 includes a first side plate 101, a second side plate 102, a third side plate 103, a fourth side plate 104, a partition plate 105 and a first bottom plate 106. The first side plate 101, the second side plate 102, the third side plate 103, the fourth side plate 104 and the first bottom plate 106 are sequentially connected to enclose a first accommodating space. The first side plate 101 is arranged opposite to the second side plate 102, the third side plate 103 is arranged opposite to the fourth side plate 104, the partition plate 105 is located in the first accommodating space, and the partition plate 105 is located in the first accommodating space. The plate 105 is located above the first bottom plate 106, and the partition plate 105 divides the first accommodating space into the first accommodating chamber 14 and the second accommodating chamber 16. The first accommodating chamber 14 is located above the second accommodating chamber 16. The first water inlet 11 is provided on the first side plate 101, and the first water outlet 12 is provided on the side of the second side plate 102 opposite to the first side plate 101. The second water outlet 13 is provided on the first bottom plate 106, and the fourth water outlet 15 is provided on the side of the second side plate 102 for connecting with the second shell 12.

[0051] The partition plate 105 divides the first accommodation space into two independent accommodation chambers, ensuring that each power module can directly contact the coolant, reduce thermal resistance, and improve heat conduction efficiency. The coolant flow path in each accommodation chamber is carefully designed to ensure that the coolant can evenly absorb heat from different positions to avoid local overheating. The setting of the first water outlet 12, the second water outlet 13 and the fourth water outlet 15 allows the coolant to be flexibly distributed between different paths, and the flow of each channel is adjusted according to actual needs to ensure the best cooling effect. The first accommodation chamber 14 is connected to the third heat dissipation channel through the fourth water outlet 15 to form a series cooling path; while the second accommodation chamber 16 remains independent and provides parallel cooling. Users can choose the most suitable cooling path according to actual conditions, providing higher flexibility. For example: if a power module generates a large amount of heat, you can choose to directly discharge the heat through the first water outlet 12, the second water outlet 13 or the fourth water outlet 15 to ensure that it is fully cooled. If additional cooling of the capacitor is required, the heat can be transferred to the third heat dissipation channel through the fourth water outlet 15. If both power modules need efficient cooling, the fourth water outlet 15 and the second water outlet 13 can be used at the same time. Users can choose the most suitable cooling path according to actual conditions, providing greater flexibility. For example: If a power module generates a lot of heat, you can choose to discharge the heat directly through the fourth water outlet 15 to ensure that it is adequately cooled. If additional cooling of the capacitor is required, the heat can be transferred to the third heat dissipation channel through the fifth water outlet 16. If both power modules need efficient cooling, the fourth water outlet 15 and the second water outlet 13 or the first water outlet 12 and the second water outlet 13 or the second water outlet 13 and the fourth water outlet 15 can be used at the same time, and the specific conditions can be adjusted according to user needs.

[0052] Reference Figure 1 to Figure 5 In an embodiment of the present invention, the third heat dissipation channel further includes a third accommodating chamber 23, the second water inlet 21, the third accommodating chamber 23 and the third water outlet 22 are sequentially connected, and the third accommodating chamber 23 is used to place a capacitor.

[0053] The cooling structure solution introduces a third accommodating chamber 23 in the third heat dissipation channel, which is specifically used to place the capacitor and optimizes the flow path of the coolant. The third heat dissipation channel is independent of the first heat dissipation channel and the second heat dissipation channel, ensuring that the heat dissipation of the capacitor will not be affected by other heating components, thereby improving the overall reliability of the system. Even if a problem occurs in a heat dissipation channel, other channels can still continue to work, enhancing the reliability and fault tolerance of the system. The third accommodating chamber 23 is designed to facilitate the disassembly and replacement of capacitors, reducing maintenance time and cost.

[0054] Reference Figure 1 to Figure 5In the embodiment of the present invention, the second shell 20 includes a fifth side plate 201, a sixth side plate 202, a seventh side plate 203, an eighth side plate 204 and a second bottom plate 205. The fifth side plate 201, the sixth side plate 202, the seventh side plate 203 and the eighth side plate 204 and the second bottom plate 205 are sequentially connected to enclose the third accommodating chamber 23. The fifth side plate 201 is arranged opposite to the sixth side plate 202, and the seventh side plate 203 is arranged opposite to the eighth side plate 204. The second water inlet 21 is opened on the side of the fifth side plate 201 connected to the first shell 11, and the third water outlet 22 is opened on the eighth side plate 204. The seventh side plate 203 and the eighth side plate 204 are both opened with strip holes 206. The second water inlet 21, the strip holes 206, the third accommodating chamber 23 and the third water outlet 22 are sequentially connected.

[0055] The coolant enters the third accommodating chamber 23 from the second water inlet 21 on the fifth side plate 201. The strip holes 206 on the seventh side plate 203 and the eighth side plate 204 provide additional air circulation to help dissipate heat and allow external air to enter and take away some of the heat. The coolant directly contacts and absorbs the heat generated by the capacitor in the third accommodating chamber 23. After absorbing the heat, the coolant flows out through the third water outlet 22 on the eighth side plate 204 to complete the heat exchange process. That is, the coolant flows from the second water inlet 21 to the strip hole 206 to the third accommodating chamber 23 to the third water outlet 22. The coolant flows through these components in turn to ensure that the coolant can effectively absorb the heat of the capacitor. At the same time, the air introduced through the strip hole 206 further enhances the heat dissipation effect. The third accommodating chamber 23 is specifically used to place capacitors to ensure that the coolant directly contacts the capacitor and improves the heat dissipation efficiency. The strip hole 206 provides additional air circulation to help dissipate heat and enhance the overall cooling effect. The combination of coolant and air improves the heat dissipation efficiency, especially providing additional heat dissipation support during high-load operation. Users can choose whether to use the third heat dissipation channel based on actual conditions, providing higher flexibility and adaptability.

[0056] Reference Figure 1 to Figure 5 In the embodiment of the present invention, the seventh side plate 203 is recessed to form a first mounting groove 207, and the first mounting groove 207 can be used to place the magnetic ring.

[0057] Placing the magnetic ring in the mounting groove on the side panel makes full use of the existing space, avoids occupying additional valuable internal space, and makes the entire cooling structure more compact. Through the recessed design, the magnetic ring can be firmly installed in the specified position, reducing the need for external mounting brackets and simplifying the system structure. The main function of the magnetic ring is to suppress electromagnetic interference (EMI), reduce the interference of high-frequency noise on the system, and ensure the stable operation of electronic equipment. By effectively suppressing electromagnetic interference, the magnetic ring can protect capacitors and other sensitive components from external electromagnetic interference, improving the overall performance and reliability of the system. The filter magnetic ring can be selected to adapt to different inverter interface sizes, thereby achieving a platform design and improving space utilization.

[0058] Reference Figure 1 to Figure 5 In the embodiment of the present invention, the eighth side plate 204 is recessed to form a second mounting groove 208, and the second mounting groove 208 can be used to place the magnetic ring.

[0059] Placing the magnetic ring in the mounting groove on the side panel makes full use of the existing space, avoids occupying additional valuable internal space, and makes the entire cooling structure more compact. Through the recessed design, the magnetic ring can be firmly installed in the specified position, reducing the need for external mounting brackets and simplifying the system structure. The main function of the magnetic ring is to suppress electromagnetic interference (EMI), reduce the interference of high-frequency noise on the system, and ensure the stable operation of electronic equipment. By effectively suppressing electromagnetic interference, the magnetic ring can protect capacitors and other sensitive components from external electromagnetic interference, improving the overall performance and reliability of the system. The filter magnetic ring can be selected to adapt to different inverter interface sizes, thereby achieving a platform design and improving space utilization.

[0060] Reference Figure 1 to Figure 5 In the embodiment of the present invention, the second bottom plate 205 is provided with a fifth water outlet 209, and the fifth water outlet 209 is connected to the third accommodating chamber 23;

[0061] The cooling structure further includes a first blocking member 30, a second blocking member 40 and a third blocking member 50;

[0062] When located at the first position, the first blocking member 30 is disposed at the second water outlet 13 to block the second water outlet 13, the third blocking member 50 is covered at the fifth water outlet 209, and the second blocking member 40 is covered on the first accommodating cavity 14 or the second accommodating cavity 16 to block the first accommodating cavity 14 or the second accommodating cavity 16;

[0063] When located at the second position, the second water outlet 13 is connected to the fifth water outlet 209, and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

[0064] In the first position (arranged side by side), the first water outlet 12 of the first heat dissipation channel is connected to the third water inlet 22 of the third heat dissipation channel to form a series cooling path. The coolant of the second heat dissipation channel is discharged through the second water outlet 13. The first blocking member 30 is used to block the second water outlet 13, the third blocking member 50 is used to cover the fifth water outlet 209, and the second blocking member 40 is used to block the first accommodating chamber 14 or the second accommodating chamber 17. In the second position (the first shell is located above the second shell), the bottom plate 205 is attached to the top of the second shell 20, and the fifth water outlet 209 is connected to the second water outlet 13 and the third water outlet 22 respectively. The first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence to form a wider cooling circuit, which significantly increases the cooling area and cooling efficiency. Multiple heat dissipation channels are reasonably arranged in a limited space, and the existing space is fully utilized to make the entire cooling structure more compact. Through the selective use of blocking members, different cooling modes can be achieved in different positions, providing higher flexibility and adaptability. Users can choose the most suitable cooling path according to actual needs without redesigning or replacing the entire cooling system. Even if a heat dissipation channel has a problem, other channels can still continue to work, which enhances the reliability and fault tolerance of the system. The design of the fifth water outlet 209 makes full use of the space of the base plate 205, avoids the need for additional pipes, and makes the entire cooling structure more compact. Through the selective use of the plugging piece, different cooling modes can be achieved in different positions to ensure that each heating element can obtain the best cooling effect. For example, in some cases, it is possible to choose to use only the first heat dissipation channel or the second heat dissipation channel; in other cases, it is possible to choose to connect them to form a wider cooling circuit. It is understandable that the first plugging piece 30, the second plugging piece 40 and the third plugging piece 50 can be threaded plugging pieces, the plugging pieces have external threads, which cooperate with the internal threads at the water outlet, and can be closed or opened by tightening or loosening; or a quick connector (such as a clamp type, a push-pull type, etc.) can be used to achieve blocking by mechanical locking. The quick connector usually includes a shell and an internal sealing ring; or the plugging piece has a flange fixed to the water outlet by bolts. Sealing gaskets are sandwiched between the flanges to ensure the sealing effect.

[0065] The present invention also relates to a motor controller, the motor controller comprises the above-mentioned cooling structure, the cooling structure comprises a first shell, provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel comprises a first water inlet and a first water outlet which are interconnected, the second heat dissipation channel comprises the first water inlet and the second water outlet which are interconnected, the first heat dissipation channel and the second heat dissipation channel can be respectively arranged in close contact with a power module to export the heat of the power module to the first heat dissipation channel and / or the second heat dissipation channel;

[0066] The second shell is connected to the first shell, the second shell is provided with a third heat dissipation channel, the third heat dissipation channel includes a second water inlet and a third water outlet connected to each other, the first heat dissipation channel is connected to the third heat dissipation channel, and the third heat dissipation channel is arranged in close contact with the capacitor to export the heat of the capacitor to the third heat dissipation channel.

[0067] The present invention further proposes a motor controller, which adopts all the technical solutions of all the above embodiments, and thus also has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0068] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cooling structure, characterized in that: include: The first housing is provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel includes a first water inlet and a first water outlet that are interconnected, the second heat dissipation channel includes the first water inlet and the second water outlet that are interconnected, the first heat dissipation channel and the second heat dissipation channel can be respectively arranged in close contact with the power module to conduct heat of the power module to the first heat dissipation channel and / or the second heat dissipation channel; The second shell is connected to the first shell, the second shell is provided with a third heat dissipation channel, the third heat dissipation channel includes a second water inlet and a third water outlet connected to each other, the first heat dissipation channel is connected to the third heat dissipation channel, and the third heat dissipation channel is arranged in close contact with the capacitor to export the heat of the capacitor to the third heat dissipation channel.

2. The cooling structure according to claim 1, characterized in that: The first shell is detachably connected to the second shell.

3. The cooling structure according to claim 2, characterized in that: The first shell and the second shell have a first position and a second position; When located at the first position, the first shell and the second shell are arranged side by side, and the first heat dissipation channel is connected to the third heat dissipation channel; When located at the second position, the first shell is located above the second shell, and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

4. The cooling structure according to claim 3, characterized in that: The first heat dissipation channel also includes a first accommodating chamber and a fourth water outlet, the first water inlet, the first accommodating chamber, the first water outlet and the fourth water outlet are connected in sequence, the third water outlet, the fourth water outlet and the third heat dissipation channel are connected in sequence, the second heat dissipation channel also includes a second accommodating chamber, the first water inlet, the second accommodating chamber and the second water outlet are connected in sequence, and the first accommodating chamber and the second accommodating chamber are both used to place power modules.

5. The cooling structure according to claim 4, characterized in that: The first shell includes a first side plate, a second side plate, a third side plate, a fourth side plate, a partition plate and a first bottom plate, the first side plate, the second side plate, the third side plate, the fourth side plate and the first bottom plate are sequentially connected to enclose a first accommodating space, the first side plate is arranged opposite to the second side plate, the third side plate is arranged opposite to the fourth side plate, the partition plate is located in the first accommodating space, the partition plate is located above the first bottom plate, the partition plate divides the first accommodating space into the first accommodating cavity and the second accommodating cavity, the first accommodating cavity is located above the second accommodating cavity, the first water inlet is arranged on the first side plate, the first water outlet is provided on the side of the second side plate opposite to the first side plate, the second water outlet is provided on the first bottom plate, and the fourth water outlet is provided on the side of the second side plate for connecting with the second shell.

6. The cooling structure according to claim 5, characterized in that: The third heat dissipation channel also includes a third accommodating cavity, the second water inlet, the third accommodating cavity and the third water outlet are connected in sequence, and the third accommodating cavity is used to place a capacitor.

7. The cooling structure according to claim 6, characterized in that: The second shell includes a fifth side plate, a sixth side plate, a seventh side plate, an eighth side plate and a second bottom plate, the fifth side plate, the sixth side plate, the seventh side plate, the eighth side plate and the second bottom plate are sequentially connected to enclose the third accommodating cavity, the fifth side plate is arranged opposite to the sixth side plate, the seventh side plate is arranged opposite to the eighth side plate, the second water inlet is opened on a side of the fifth side plate connected to the first shell, the third water outlet is opened on the eighth side plate, the seventh side plate and the eighth side plate are both opened with strip holes, the second water inlet, the strip holes, the third accommodating cavity and the third water outlet are sequentially connected.

8. The cooling structure according to claim 7, characterized in that: The seventh side plate is recessed to form a first mounting groove, and the first mounting groove can be used to place the magnetic ring; and / or The eighth side plate is recessed to form a second mounting groove, and the second mounting groove can be used to place the magnetic ring.

9. The cooling structure according to claim 7, characterized in that: The second bottom plate is provided with a fifth water outlet, and the fifth water outlet is communicated with the third accommodating cavity; The cooling structure also includes a first blocking member, a second blocking member and a third blocking member; When located at the first position, the first blocking member is disposed at the second water outlet to block the second water outlet, the third blocking member cover is disposed at the fifth water outlet, and the second blocking member cover is disposed on the first accommodating cavity or the second accommodating cavity to block the first accommodating cavity or the second accommodating cavity; When located at the second position, the second water outlet is connected to the fifth water outlet, and the first heat dissipation channel, the second heat dissipation channel and the third heat dissipation channel are connected in sequence.

10. A motor controller, characterized in that: Comprising the cooling structure according to any one of claims 1 to 9.

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