Control box for pump, driving plate cooling system for pump and motor pump

Abstract

The utility model discloses a pump control box, a pump drive board heat dissipation system and a motor pump, and belongs to the field of pump drive board heat dissipation. The control box for the pump comprises a box base, at least two heat dissipation bosses with heat dissipation planes are arranged in a containing cavity of the box base, and the heat dissipation planes of the heat dissipation bosses can be matched with power devices on an electric control board so that heat of the power devices can be transmitted to the heat dissipation bosses. Each heat dissipation boss makes contact with the inner wall of the side plate of the box base containing cavity, and the inner wall of the side plate of each box base containing cavity makes contact with at most one heat dissipation boss. According to the utility model, the heat dissipation area can be effectively increased, rapid heat dissipation is carried out by using the whole box seat, and heat received by the plurality of heat dissipation bosses is respectively transmitted to different side plates, so that uniform and rapid heat dissipation around is realized, and uneven heat dissipation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of pump drive board heat dissipation technology, and more specifically, to a pump control box, a pump drive board heat dissipation system, and a motor pump. Background Technology

[0002] A motor drive board is a circuit component used in conjunction with a motor to ensure its normal operation. It is typically housed in a control box located on the motor's casing, which also contains electrical connectors and electronic components. When the motor drive board is in use, some power components generate significant heat, requiring effective and safe dissipation of the waste heat produced within the casing.

[0003] To prevent the motor drive board from overheating and affecting its lifespan, common methods include creating heat dissipation holes inside the control box, equipping it with heat dissipation fins, or using external cooling fins or other cooling measures on the casing to cool the power electronic components. Improving heat dissipation often requires creating a large number of large heat dissipation holes, which reduces the control box's waterproof rating. Increasing the number of heat dissipation fins or fins requires more installation space, increasing the motor size and further complicating the design and manufacturing of the control box. Therefore, efficiently and easily improving the heat dissipation performance of the control box while maintaining its overall structure is clearly more suitable for production needs.

[0004] Patent CN220023454U discloses a heat dissipation device for a motor drive board. It involves setting a first and second heat dissipation hole on the edge of the control box, and installing water-blocking structures in both holes to avoid adverse effects on waterproofing. However, the heat dissipation effect of the holes still cannot meet practical needs. Patent CN104136781B discloses an electric motor where the control box is composed of two interconnected separate housings. The internal spaces of these two housings are connected, and each housing is composed of multiple components. At least two components of each housing have thermal conductivity differences of at least one power of ten. This arrangement allows for targeted heat dissipation for power electronic devices located within the housings, and also allows the use of materials with lower thermal loads, where thermal conductivity is less critical and optimization focuses more on production cost, weight, and manufacturing. However, this design requires the processing and coordination of two parts made of different materials, placing higher demands on the material and processing of the control box, increasing production difficulty, and making it unsuitable for widespread production. Utility Model Content

[0005] 1. Technical problem to be solved by the utility model

[0006] In view of the fact that the heat dissipation performance of the motor pump control box in the existing technology still needs to be improved, this utility model intends to provide a pump control box, a pump drive board heat dissipation system and a motor pump. The control box of this utility model can further improve the heat dissipation performance of power devices while maintaining the original overall structure of the control box as much as possible, ensuring rapid and uniform heat dissipation, and is easy to produce and promote.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0009] This utility model discloses a pump control box, including a box base. The box base includes a base plate and a cavity for mounting an electronic control board, which is surrounded by at least three side plates around the base plate. The cavity contains at least two heat dissipation protrusions with heat dissipation surfaces. The heat dissipation surfaces of the protrusions are configured to cooperate with power devices on the electronic control board to transfer heat from the power devices to the heat dissipation protrusions. Each heat dissipation protrusion contacts the inner wall of the side plate of the cavity, and the inner wall of the side plate of each cavity contacts at most one heat dissipation protrusion. The outer wall of the base plate of the box base has a mounting area for connecting to the pump body at its center.

[0010] This invention, by setting heat dissipation protrusions that contact the inner wall of the side plate of the housing, can transfer the heat of the power device to the side plate of the housing through the heat dissipation protrusions, thereby effectively increasing the heat dissipation area. The heat received by multiple heat dissipation protrusions is transferred to different side plates respectively, achieving uniform and rapid heat dissipation from all sides, and avoiding uneven heat dissipation due to heat concentration.

[0011] Furthermore, the receiving cavity is equipped with a first heat dissipation protrusion and a second heat dissipation protrusion. The receiving cavity of the box base is a rectangular cavity, and the first and second heat dissipation protrusions respectively contact the oppositely distributed side plates of the box base. At this time, the two sets of heat dissipation protrusions are arranged opposite to each other, which can transfer heat to the side plates of the box base relatively evenly and avoid uneven heat dissipation.

[0012] Furthermore, the first and second heat dissipation protrusions contact the side plates along the length of the housing, and are staggered on both sides of the housing's length. This staggered distribution of the first and second heat dissipation protrusions, within the limited space of the housing's internal cavity, minimizes the distance between the two sets of protrusions, preventing heat concentration and hindering rapid heat dissipation. Alternatively, the first heat dissipation protrusion can be centrally located on one side plate along the housing's length, while the second heat dissipation protrusion is not centrally located on the other side plate along the housing's length.

[0013] Furthermore, the bottom of the heat dissipation protrusion extends to contact the inner wall of the base plate of the box, and at least one edge of the heat dissipation protrusion extends to contact the inner wall of the side plate of the box, further increasing the heat dissipation area and enabling rapid heat dissipation.

[0014] Furthermore, the heat dissipation surface of the heat dissipation protrusion faces the opening side of the receiving cavity of the housing, and the size of the heat dissipation surface is set to cover the size of the corresponding power device on the electronic control board, ensuring that the heat generated by the power device is fully received.

[0015] Furthermore, the cavity is also equipped with multiple positioning posts for connecting to the electronic control board. At least one edge of the positioning post is connected to the inner wall of the side plate of the box base through a connecting rib, or connected to the heat dissipation protrusion, thereby further improving the heat dissipation performance of the electronic control board.

[0016] Furthermore, multiple heat dissipation fins are provided on the outer wall of the base plate surrounding the mounting area of ​​the pump body. The extension distance of the heat dissipation fins distributed on both sides along the length of the base plate can correspondingly cover the extension distance of the first and second heat dissipation bosses along the length of the base plate. This allows the heat from the first and second heat dissipation bosses to be fully and quickly dissipated through the base plate using the heat dissipation fins.

[0017] This utility model also provides a heat dissipation system for a pump drive board, including a control box and an electronic control board disposed in the control box. The control box includes a box cover and a box base as described above. The electronic control board is provided with at least two power devices, which are in direct or indirect contact with the heat dissipation plane of the heat dissipation boss.

[0018] This utility model also provides an electric motor pump, including a pump body and a control box as described above. The pump body is installed on the mounting area in the middle of the box base plate, and a heat insulation plate is provided between the pump body and the mounting area of ​​the box base plate.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0021] (1) The pump control box of this utility model has multiple heat dissipation protrusions with heat dissipation planes in the cavity. Each heat dissipation protrusion is in contact with the inner wall of the side plate of the cavity. The heat of the power device can be transferred to the side plate of the cavity through the heat dissipation protrusion, thereby effectively increasing the heat dissipation area and using the entire cavity for rapid heat dissipation. Each cavity has at most one heat dissipation protrusion in contact with the inner wall of the side plate. The heat received by the multiple heat dissipation protrusions is transferred to different side plates, achieving uniform and rapid heat dissipation around the perimeter, thus avoiding uneven heat dissipation.

[0022] (2) The pump control box of this utility model has two sets of heat dissipation protrusions that are in contact with the two side plates on both sides of the box seat along the length direction and are staggered. The side plates along the length direction with a larger heat dissipation area are used for rapid heat dissipation. The two sets of heat dissipation protrusions are staggered as much as possible to avoid the situation where the heat is concentrated and cannot be dissipated quickly due to the two sets of heat dissipation protrusions being too close. This setting not only improves the heat dissipation efficiency but also helps to ensure the uniformity of heat dissipation.

[0023] (3) The pump control box of this utility model has multiple heat dissipation fins on the outer wall of the base plate surrounding the installation area of ​​the pump body. The distribution range of the two rows of heat dissipation fins extending along the length direction can cover the length extension distance of the first heat dissipation boss and the second heat dissipation boss. The heat dissipation fins and the heat dissipation boss further cooperate to make the heat of the heat dissipation boss fully utilized by the heat dissipation fins for rapid heat dissipation after passing through the base plate, thereby improving the heat dissipation effect. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the motor pump in the embodiment;

[0025] Figure 2 This is an exploded view of the control box structure in the embodiment;

[0026] Figure 3 This is a schematic diagram of the electronic control board in the embodiment;

[0027] Figure 4 This is a schematic diagram of the control box base in the embodiment;

[0028] Figure 5 This is a schematic diagram of the control box base from another perspective in the embodiment;

[0029] Figure 6 This is a schematic diagram of the outer wall structure of the control box base in the embodiment.

[0030] Explanation of the labels in the diagram:

[0031] 100. Control box; 200. Pump body;

[0032] 110. Housing; 111. First heat dissipation boss; 112. Second heat dissipation boss; 113. Positioning post; 114. Connecting rib; 115. Pin mounting hole; 116. Receiving groove; 117. Adapter mounting hole; 118. Heat dissipation fins; 119. Heat dissipation ribs;

[0033] 120. Box cover; 130. Electrical control board; 131. First power device; 132. Second power device; 133. Inductor; 140. Heat insulation board. Detailed Implementation

[0034] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0035] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. The terms "first," "second," "third," and "fourth" should also be interpreted broadly, merely distinguishing feature names and not indicating a specific sequential relationship. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] The present invention will be further described below with reference to the embodiments.

[0038] Example

[0039] Combination Figures 1-6 As shown, a pump control box according to this embodiment includes a box base 110. The box base 110 includes a base plate and a receiving cavity for mounting an electronic control board 130, which is surrounded by at least three side plates around the base plate. The receiving cavity is provided with at least two heat dissipation protrusions with heat dissipation planes. The heat dissipation planes of the heat dissipation protrusions are configured to cooperate with power devices on the electronic control board 130 to transfer heat from the power devices to the heat dissipation protrusions. Each heat dissipation protrusion contacts the inner wall of the side plate of the receiving cavity of the box base 110, and the inner wall of the side plate of the receiving cavity of the box base 110 contacts at most one heat dissipation protrusion. The outer wall of the base plate of the box base 110 has a mounting area for connecting to the pump body 200 at the middle position.

[0040] This embodiment maintains the original overall structure as much as possible without making complex modifications to the housing 110. By setting heat dissipation protrusions that contact the inner wall of the side plate of the housing 110, and by using metal materials for both the heat dissipation protrusions and the housing 110, heat can be quickly transferred. The heat from the power devices can be transferred to the side plate of the housing 110 through the heat dissipation protrusions, thereby effectively increasing the heat dissipation area and utilizing the entire housing 110 for rapid heat dissipation. When multiple heat dissipation protrusions are distributed, the inner wall of the side plate of the housing 110 receiving cavity will contact at most one heat dissipation protrusion, and multiple heat dissipation protrusions will not contact the inner wall of the same side plate. In this way, the heat received by multiple heat dissipation protrusions is transferred to different side plates, achieving uniform and rapid heat dissipation from all sides, and avoiding uneven heat dissipation.

[0041] To further improve the heat dissipation efficiency of the heat dissipation boss, it is preferable that the bottom of the heat dissipation boss extends to contact the inner wall of the bottom plate of the housing 110, and at least one edge of the heat dissipation boss extends to contact the inner wall of the side plate of the housing 110. Figure 4 and Figure 5 As shown, the heat dissipation protrusion can be a rectangular protrusion extending upwards from the bottom plate of the housing 110, with one side wall of the protrusion always in contact with the inner wall of one side plate of the housing 110. This effectively increases the contact area between the heat dissipation protrusion and the housing 110, facilitating faster heat transfer and dissipation. Depending on actual needs, the heat dissipation protrusion can contact the inner wall of the side plate of the housing 110 on one side, or its adjacent sides can respectively contact the inner walls of the adjacent side plates of the housing 110. However, in this case, at most one heat dissipation protrusion will contact the interior of one side plate of the housing 110, increasing the heat dissipation area and improving heat dissipation efficiency while avoiding uneven heat dissipation.

[0042] The heat dissipation boss transfers heat through planar contact. To ensure comprehensive heat dissipation for the power devices, a preferred embodiment is that the heat dissipation plane of the heat dissipation boss faces the opening of the receiving cavity of the housing 110. That is, the top surface of the heat dissipation boss serves as the heat dissipation plane. The size of the heat dissipation plane is designed to cover the size of the corresponding power device on the electronic control board 130. This not only ensures complete contact with the power device and comprehensive absorption of the heat generated by the power device, but also serves as a support to adequately support the power device, ensuring its positional stability within the receiving cavity. In practice, the heat dissipation plane of the heat dissipation boss can directly contact the power device on the electronic control board 130, or an indirect contact can be achieved by laying a layer of thermally conductive silicone between them. This avoids hard contact without affecting heat dissipation, further protecting the power device on the electronic control board 130 and preventing damage.

[0043] To facilitate the stable installation of the control board 130 within the housing 110, the cavity is further provided with multiple positioning posts 113 for connecting to the control board 130. The control board 130 and the positioning posts 113 are respectively provided with corresponding mounting holes. After the control board 130 is placed into the cavity, the positioning posts 113 are used to position, support and fix the control board 130. The positioning post 113 is a metal column extending upward from the bottom plate of the box base 110. In order to further improve the heat dissipation performance of the control board 130 by utilizing the positioning post 113, similarly, at least one edge of the positioning post 113 is connected to the inner wall of the side plate of the box base 110 through the connecting stiffener 114. In practice, it is preferred to set the positioning post 113 at the edge of the receiving cavity near the inner wall of the side plate of the box base 110, so that the positioning post 113 is as close as possible to the inner wall of the side plate of the box base 110. This can reduce the setting length of the connecting stiffener 114 and accelerate the transfer of heat received by the positioning post 113 to the side plate of the box base 110, thereby achieving rapid contact heat dissipation by utilizing a larger heat dissipation area. When there is a practical need to position the positioning post 113 near the center of the receiving cavity of the housing 110, the distance between the positioning post 113 and the heat dissipation boss is smaller. In this case, the positioning post 113 can be connected to the heat dissipation boss using the connecting stiffener 114, allowing heat to be quickly transferred to the heat dissipation boss and further dissipated using the side plate of the housing 110. For example... Figure 4 As shown, connecting ribs 114 can be provided on both sides of the positioning post 113 to connect to different heat dissipation protrusions to accelerate heat dissipation.

[0044] As one specific implementation method, combined with Figure 4 and Figure 5 As shown, the receiving cavity is provided with a first heat dissipation protrusion 111 and a second heat dissipation protrusion 112. The receiving cavity of the box base 110 is a rectangular cavity. The longer side plates on both sides extend in the length direction, and the shorter side plates on both sides extend in the width direction. Preferably, the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 are respectively in contact with the oppositely distributed side plates on both sides of the box base 110. For example, the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 are respectively in contact with the side plates on both sides in the width direction; or they are respectively in contact with the side plates on both sides in the length direction. At this time, the two sets of heat dissipation protrusions are arranged opposite to each other, which can transfer heat to the side plates on both sides of the box base 110 relatively evenly and avoid uneven heat dissipation.

[0045] Based on this, a more preferable design is that the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 correspond to the two side plates along the length of the housing 110, utilizing the side plates with a larger heat dissipation area for rapid heat dissipation. Furthermore, it is preferable that the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 are staggered on both sides along the length of the housing 110. For example... Figure 4As shown, the first heat dissipation protrusion 111 is centrally located on one side plate along the length of the housing 110, while the second heat dissipation protrusion 112 is non-centrally located on the other side plate along the length of the housing 110. Both the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 can be rectangular protrusions. Centralizing the first heat dissipation protrusion 111 on the side plate along the length allows for even heat transfer to both sides, ensuring uniform heat dissipation. The staggered distribution of the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112, within the limited space of the housing cavity inside the housing 110, helps to stagger the two sets of heat dissipation protrusions, preventing them from being too close together and causing heat concentration that hinders rapid heat dissipation. This arrangement improves heat dissipation efficiency and also helps ensure uniform heat dissipation.

[0046] To accelerate the dissipation of heat from the housing 110, further optimizations were made, such as... Figure 6 As shown, multiple metal heat dissipation fins 118 are provided on the outer wall of the base plate of the housing 110, surrounding the mounting area of ​​the pump body 200. The mounting area for mounting the pump body 200 is located in the middle of the outer wall of the base plate of the housing 110. This not only facilitates the layout of the installation space but also allows for staggering with the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 located near the edge of the housing cavity of the housing 110, preventing excessive heat transfer from the heat dissipation protrusions to the pump body 200 mounted on the mounting area. Furthermore, corresponding to the distribution positions of the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112, the extension distance of the heat dissipation fins 118 distributed along the length of the base plate can cover the extension distance of the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 along the length of the base plate, ensuring that the heat from the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 can be quickly dissipated by utilizing the heat dissipation fins 118 after passing through the base plate. Figure 6 As shown, the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 are in contact with the two side plates along the length direction inside the receiving cavity. Two rows of heat dissipation fins 118 are provided on both sides of the base plate of the box seat 110 along the length direction, extending to cover the entire length of the base plate, thus working in conjunction with the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112 to achieve rapid heat dissipation. Furthermore, multiple rows of heat dissipation fins 118 are also provided on one side along the width direction of the base plate of the box seat 110. These multiple rows of heat dissipation fins 118 form heat dissipation channels extending along the length direction, while multiple heat dissipation fins 118 in the same row form heat dissipation channels extending along the width direction. This creates a crisscrossing heat dissipation channel network on the base plate of the box seat 110, further promoting rapid and uniform heat dissipation.

[0047] Combination Figure 3As shown, in this embodiment, the control board 130 has a first power device 131 and a second power device 132 respectively located on both sides of its length, which can be adapted to the positions of the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112. The control board 130 also has a large inductor 133. In conjunction with this, the bottom plate of the housing 110 has a downwardly recessed receiving groove 116, which allows the end of the inductor 133 to be embedded. This not only effectively limits the inductor 133 but also facilitates the inductor 133 to contact the bottom plate of the housing 110 for rapid heat dissipation. In practice, the bottom plate of the housing 110 also has a through pin mounting hole 115 and an adapter mounting hole 117. The pin mounting hole 115 is used for the insertion of the pins of the heat insulation plate 140, and the adapter mounting hole 117 is used for the adapter mounting of the output wire. The adapter mounting hole 117 is located on one side of the bottom plate of the housing 110 in the width direction and near the edge. Correspondingly, in combination with Figure 6 As shown, it is inconvenient to install heat dissipation fins 118 on the outer wall surface of the base plate of the box seat 110 at the position of the adapter mounting hole 117. This embodiment further optimizes this by providing multiple heat dissipation ribs 119 extending along the height direction on the side plate of the box seat 110 in the width direction, which is close to the adapter mounting hole 117. A heat dissipation channel is formed between adjacent heat dissipation ribs 119, thus supplementing heat dissipation in the width direction of the box seat 110. This, together with the heat dissipation fins 118 provided on the other side of the width direction of the box seat 110, achieves uniform heat dissipation.

[0048] This embodiment also provides a heat dissipation system for a pump drive board, including a control box 100 and an electronic control board 130 disposed within the control box 100. The control box 100 includes a cover 120 and a base 110 as described above. The electronic control board 130 is provided with at least two power devices, which are in direct or indirect contact with the heat dissipation plane of the heat dissipation protrusions. Specifically, a first power device 131 and a second power device 132 are respectively provided on both sides of the electronic control board 130 along the length direction, corresponding to the positions of the first heat dissipation protrusion 111 and the second heat dissipation protrusion 112.

[0049] This embodiment also provides a motor pump, including a pump body 200 and a control box 100 as described above. The pump body 200 is mounted on the mounting area in the middle of the base plate of the box 110, and a heat insulation plate 140 is provided between the pump body 200 and the mounting area of ​​the base plate of the box 110. The heat insulation plate 140 can further block the heat transfer between the pump body 200 and the box 110, and also prevent the large amount of waste heat generated in the pump body 200 from being transferred to the box 110 and the electronic control board 130, thus ensuring the working efficiency and stability of the electronic control board 130.

[0050] The scope of protection of this utility model is defined only by the claims. Thanks to the teachings of this utility model, those skilled in the art will readily recognize that alternative structures to the disclosed structure can be used as feasible alternative implementations, and that the disclosed implementations can be combined to produce new implementations, which also fall within the scope of the appended claims.

Claims

1. A pump control box, comprising a box base (110), the box base (110) including a base plate and a receiving cavity for mounting an electrical control board (130) formed by at least three side plates surrounding the base plate; characterized in that: The cavity is provided with at least two heat dissipation protrusions with heat dissipation planes. The heat dissipation planes of the heat dissipation protrusions are configured to cooperate with the power devices on the power control board (130) to transfer the heat of the power devices to the heat dissipation protrusions. Each heat dissipation protrusion is in contact with the inner wall of the side plate of the cavity of the box (110), and the inner wall of the side plate of each cavity of the box (110) is in contact with at most one heat dissipation protrusion. The outer wall of the base plate of the housing (110) has a mounting area at the middle position for connection with the pump body (200).

2. The pump control box according to claim 1, characterized in that: The cavity is provided with a first heat dissipation protrusion (111) and a second heat dissipation protrusion (112). The cavity of the box base (110) is a rectangular cavity. The first heat dissipation protrusion (111) and the second heat dissipation protrusion (112) are respectively in contact with the two side plates of the box base (110) that are distributed opposite to each other.

3. A pump control box according to claim 2, characterized in that: The first heat dissipation protrusion (111) and the second heat dissipation protrusion (112) are in contact with the two side plates of the box base (110) along the length direction, and the first heat dissipation protrusion (111) and the second heat dissipation protrusion (112) are staggered on both sides of the box base (110) along the length direction.

4. A pump control box according to any one of claims 1-3, characterized in that: The bottom of the heat dissipation boss extends to contact the inner wall of the base plate of the box (110), and at least one edge of the heat dissipation boss extends to contact the inner wall of the side plate of the box (110).

5. A pump control box according to claim 3, characterized in that: The first heat dissipation boss (111) is centrally located on one side plate along the length of the housing (110).

6. A pump control box according to any one of claims 1-3, characterized in that: The heat dissipation surface of the heat dissipation boss faces the opening side of the receiving cavity of the housing (110), and the size of the heat dissipation surface is set to cover the size of the corresponding power device on the electronic control board (130).

7. A pump control box according to claim 1, characterized in that: The cavity is also provided with a plurality of positioning posts (113) for connecting to the electronic control board (130). At least one edge of the positioning post (113) is connected to the inner wall of the side plate of the box base (110) through the connecting rib (114), or connected to the heat dissipation protrusion.

8. A pump control box according to claim 3, characterized in that: Multiple heat dissipation fins (118) are provided on the outer wall of the base plate of the box seat (110) surrounding the installation area of ​​the pump body (200). The extension distance of the heat dissipation fins (118) distributed on both sides along the length direction of the base plate can cover the extension distance of the first heat dissipation boss (111) and the second heat dissipation boss (112) in the length direction of the base plate.

9. A heat dissipation system for a pump drive board, characterized in that: The control box (100) includes a control box (100) and an electronic control board (130) disposed within the control box (100). The control box (100) includes a cover (120) and a base (110) as described in any one of claims 1-8. The electronic control board (130) is provided with at least two power devices, which are in direct or indirect contact with the heat dissipation plane of the heat dissipation boss.

10. An electric motor pump, characterized in that: It includes a pump body (200) and a control box (100) as described in claim 9. The pump body (200) is mounted on the mounting area in the middle of the bottom plate of the box base (110), and a heat insulation plate (140) is provided between the pump body (200) and the mounting area of ​​the bottom plate of the box base (110).

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