A control box for a pump and a pump unit

Abstract

The utility model discloses a kind of control box for pump and pump unit, belong to the field of pump group.The utility model's control box, comprising: first box body, first box body is configured as being installed in the axial end of base, and drive board one is installed in first box body;Second box body, second box body is configured as being installed in the radial outer side of base, and drive board two is installed in second box body;Drive board one and drive board two are electrically connected.The utility model's control box is adapted using double box body and double drive board structure, reasonably utilizes the space distribution outside the axial end and radial profile of base, compact structure, improves the installation adaptability of pump body in narrow space;And strong current module and weak current module are mainly integrated on different drive boards, effectively avoid the problem of mutual interference between strong and weak electric components, effectively safe separation, guarantee operation safety.

Description

Technical Field

[0001] This utility model relates to the field of fluid pump technology, and more specifically, to a pump control box and pump unit. Background Technology

[0002] Pumps, as important fluid transport devices, are widely used in various fields such as industry, agriculture, construction, and household applications. Modern pump systems typically consist of two main parts: a drive motor and an intelligent control unit. The control unit integrates electronic components such as inverter circuits, control chips, and sensor interfaces to achieve functions such as motor speed regulation, protection, and status monitoring, thereby significantly improving the pump's performance, efficiency, and intelligence level.

[0003] Currently, the electronic components of the control unit are generally integrated onto a drive board, which is then encapsulated within a control box. This control box is typically mounted on the radial outer periphery or axial end of the drive motor, forming a compact unit with the motor body. However, in practice, to ensure the safe distribution of electrical components, the drive board is designed to be relatively large, necessitating a corresponding increase in the size of the control box. This results in an overall increase in the size of the pump unit, making it bulky and difficult to adapt to the current trend of miniaturization and integration of equipment. This limitation is particularly pronounced in confined applications with strict space constraints, such as residential installations or embedded equipment, and also affects the flexibility and aesthetics of the pump structure to some extent. Utility Model Content

[0004] 1. Technical problem to be solved by the utility model In view of the fact that the control box design in the prior art is relatively large and has obvious limitations on installation space, this utility model intends to provide a pump control box and pump unit. By optimizing the structure of the control box, it helps to reduce the volume occupation and improve the installation flexibility of the pump body.

[0005] 2. Technical Solution To achieve the above objectives, the technical solution provided by this utility model is as follows: This utility model discloses a pump control box, comprising: The first housing is configured to be mounted on the axial end of the base, and a drive plate is installed inside the first housing. The second housing is configured to be mounted radially outward of the base, and the second housing contains the second drive board. Driver board one and driver board two are electrically connected.

[0006] Furthermore, both drive board one and drive board two are equipped with electronic control components, and the high-voltage modules are mainly distributed on one of the drive boards, while the low-voltage modules are mainly distributed on the other drive board.

[0007] Furthermore, the high-voltage modules are mainly located on driver board two, while the low-voltage modules are mainly located on driver board one.

[0008] Furthermore, the first box and the second box are integrally formed, and the first box and the second box are connected to each other for electrical connection between the first drive board and the second drive board.

[0009] Furthermore, it also includes signal connectors and power connectors, both of which are located on the second housing.

[0010] This utility model also provides a pump unit, including a base and a control box. The control box is as described above. The first box body is installed at the axial end of the base, and the drive plate is electrically connected to the motor assembly inside the base. The second box body is installed on the radial outer side of the base.

[0011] Furthermore, the first box is a circular box with a cross-section that matches the shape of the machine base's outline cross-section, and the outline cross-section of the first box does not extend beyond the axial end face of the machine base.

[0012] Furthermore, the second box is a box with a rectangular cross-section, and the mounting bottom surface of the second box is an arc-shaped bottom surface that matches the circumferential wall surface of the base.

[0013] Furthermore, the axial end of the base is provided with a mounting post, and the bottom surface of the first box is provided with a corresponding mounting hole, and the base is fastened to the first box by fastening bolts; An axially extending guide and limiting part is provided between the assembly bottom surface of the second box and the circumferential wall surface of the base.

[0014] Furthermore, the circumferential wall of the base is provided with axially extending positioning ribs, and positioning base plates are provided on both sides of the assembly bottom surface of the second box, forming a positioning groove between the positioning base plates and the assembly bottom surface for the positioning ribs to be axially embedded.

[0015] 3. Beneficial effects Compared with the prior art, the technical solution provided by this utility model has the following advantages: (1) The pump unit of this utility model adopts a double box and double drive plate structure for the control box, which can make reasonable use of the space distribution outside the axial end and radial contour of the base. The structure is compact, which effectively reduces the space occupied by the axial height of the pump body, reduces the pump volume, improves the problem of the pump body being difficult to install and the space limitation caused by the excessive size of the control box, and improves the installation adaptability of the pump body in a narrow space.

[0016] (2) The pump unit of this utility model adopts a double box and double drive board structure, and integrates the high-voltage module and the low-voltage module on different drive boards and distributes them in the box at different positions of the base. This effectively avoids the problem of mutual interference between high-voltage and low-voltage components, effectively and safely separates them, and ensures safe operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly structure of the control box and the base in the embodiment; Figure 2 This is a schematic diagram of the control box in the embodiment; Figure 3 This is a schematic diagram of the base structure in the embodiment; Figure 4 This is a schematic diagram of the pump unit in the embodiment; Figure 5 This is a cross-sectional view of the pump unit in the embodiment.

[0018] Explanation of the labels in the diagram: 100. First box body; 101. Mounting hole; 110. First box cover; 120. Driver board one; 200. Second housing; 201. Assembly bottom surface; 202. Positioning groove; 203. Positioning base plate; 204. Signal connector; 205. Power connector; 210. Second housing cover; 220. Driver board two; 300, base; 301, mounting column; 302, positioning rib. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The present invention will be further described below with reference to the embodiments.

[0023] Example Combination Figures 1-5 As shown, this embodiment provides a pump unit including a base 300 and a control box, wherein the control box specifically includes: The first box 100 is installed at the axial end of the base 300. A drive plate 120 is installed inside the first box 100. The drive plate 120 is electrically connected to the motor assembly inside the base 300. In practice, the first box 100 is also equipped with a first box cover 110. The second housing 200 is installed on the radial outer side of the base 300, and the second drive board 220 is installed inside the second housing 200; in practice, the second housing 200 is also equipped with a second cover 210; the first drive board 120 and the second drive board 220 are electrically connected.

[0024] In this embodiment, the control box adopts a dual-box structure, which is adapted to be installed at different positions on the base 300. It makes reasonable use of the space distribution outside the axial end and radial contour of the base, and sets two drive boards in the two boxes in a reasonable layout. This can effectively reduce the volume occupied by a single drive board and control box, making the structure compact and more compatible with the structural distribution of the base 300. In particular, it effectively reduces the space occupied by the axial height of the pump body, reduces the pump volume, and improves the problem of difficult pump installation and high space limitation caused by the large control box. It also improves the installation adaptability of the pump body in narrow spaces.

[0025] Secondly, and more preferably, both drive board 120 and drive board 220 are equipped with electrical control components, with the high-voltage modules mainly distributed on one drive board and the low-voltage modules mainly distributed on the other. In practice, the high-voltage modules generally include common-mode inductor modules, electrolytic capacitor modules, varistor modules, thermistor modules, relay modules, power terminals, power control modules, etc., while the low-voltage modules generally include switching power supply circuit modules, chip modules, LED modules, gear shift button modules, etc., which will not be elaborated further. This embodiment utilizes different housings to integrate the high-voltage and low-voltage modules onto different drive boards, which can effectively improve the safety and reliability of pump operation.

[0026] Traditional drive board designs in the industry often employ a fully integrated layout. The components on a single drive board include both high-voltage, high-current high-power modules and low-voltage, low-current low-power modules. To prevent high-voltage breakdown, arcing, and reduce electromagnetic interference, sufficient electrical clearance and creepage distance must be ensured between the high-power and low-power circuits. Designers must reserve a large isolation area between the high-power and low-power areas, which directly results in a larger drive board size. Consequently, the control box must have a correspondingly larger internal space and external volume, leading to significant limitations in the space required for pump installation.

[0027] This embodiment utilizes the cooperation of driver board 120 and driver board 220 to further achieve the separate arrangement of high-voltage and low-voltage modules in different housings, effectively avoiding the problem of mutual interference between high-voltage and low-voltage components, ensuring effective and safe separation, and guaranteeing operational safety. It should be noted that in this embodiment, driver board 120 is preferably mainly equipped with low-voltage modules, while driver board 220 is mainly equipped with high-voltage modules. This achieves effective separation of most high-voltage and low-voltage modules. Furthermore, due to the cooperation of the two driver boards, the number of modules installed on each driver board is reduced, and the space for the required components on a single driver board is still relatively sufficient. Without increasing the size of the driver board, there is also sufficient safe distance to allow some high-voltage and low-voltage modules to coexist. Therefore, in practice, a small number of high-voltage modules can coexist on driver board 120, and a small number of low-voltage modules can coexist on driver board 220.

[0028] In practice, the power control module will still be located on the drive plate 120 distributed at the axial end. Therefore, a metal cover 110 is provided on the first housing 100. The first cover 110 has a metal heat dissipation protrusion corresponding to the position of the power control module. It can quickly and effectively dissipate heat from the power control module through contact with thermally conductive adhesive, improving heat dissipation efficiency. The low-voltage modules are mainly distributed on the drive plate 120. The low-voltage modules are small in size and occupy little space, which can effectively reduce the axial height and radial dimensions of the first housing 100. The high-voltage modules are mainly distributed on the drive plate 220, which has more installation space.

[0029] Furthermore, in practice, the first housing 100 and the second housing 200 can preferably be integrally molded, and a channel is provided between the first housing 100 and the second housing 200 to facilitate electrical connection between the drive board 120 and the drive board 220. Alternatively, a split structure can be adopted as needed.

[0030] In practice, the pump unit also includes a signal connector 204 and a power connector 205, and further, such as Figure 4 As shown, it is preferable to place both the signal connector 204 and the power connector 205 on the second housing 200, preferably on the same side of the second housing 200, to further reduce the space occupied on the first housing 100 and to provide more operating space for wiring.

[0031] In practice, the first box 100 can be designed as a circular box with the same outline cross-sectional shape as the base 300, and the outline cross-section of the first box 100 should not extend beyond the axial end face of the base 300 to avoid obstructing the fastening installation of the base 300. Specifically, refer to... Figure 4 As shown in the diagram, when using the four corner bolts to assemble and disassemble the base 300 and the rear pump casing structure, the axial direction of the bolts is not obstructed by the first housing 100 at the end, allowing for direct assembly and disassembly of the base 300 and the pump casing structure without removing the first housing 100. Furthermore, the second housing 200 can be a rectangular cross-section housing, as shown in the reference diagram. Figure 2 and Figure 4 As shown, the mounting bottom surface 201 of the second box 200 is preferably an arc-shaped bottom surface that is adapted to the circumferential wall surface of the base 300, so as to maintain a good fit with the outer circumferential wall surface of the base 300.

[0032] Combination Figure 1 and Figure 3As shown, the base 300 and the control box can be fixed in the following way: the axial end of the base 300 is provided with multiple mounting posts 301, and the bottom surface of the first box 100 is provided with multiple mounting holes 101. The base 300 and the first box 100 are fastened together by fastening bolts to ensure the stability of the fixation. At the same time, in order to improve the stable fit between the second box 200 and the base 300, an axially extending guide limiting part is also provided between the mounting bottom surface 201 of the second box 200 and the circumferential wall surface of the base 300. When the entire control box is installed, the guide limiting part is used to realize the pre-positioning and precise limiting of the second box 200 and the base 300 along the axial direction. Then, the fastening bolts are used to lock the base 300 and the first box 100 to ensure the precise installation and connection fixation strength of the entire control box.

[0033] Specifically, the guide and limiting part can adopt the following design, combined with Figure 1 and Figure 3 As shown, the upper side of the circumferential wall of the base 300 is provided with outwardly protruding positioning ribs 302 that extend axially. Specifically, two positioning ribs 302 can be provided. The two sides of the edge of the mounting bottom surface 201 of the second box 200 are respectively provided with positioning base plates 203 extending inward. A positioning groove 202 is formed between the positioning base plate 203 and the mounting bottom surface 201 for the positioning ribs 302 to be axially embedded. During installation, the two positioning ribs 302 extend inward on the corresponding sides of the positioning base plate 203 to achieve guiding positioning and maintain an upper and lower limit state with the positioning base plate 203, thereby improving the assembly stability and connection strength between the second box 200 and the base 300.

[0034] 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, characterized in that, include: A first housing (100) is configured to be mounted on the axial end of a base (300), and a drive plate (120) is installed inside the first housing (100). The second housing (200) is configured to be mounted radially outside the base (300), and the second housing (200) contains the second drive plate (220). Drive board one (120) and drive board two (220) are electrically connected.

2. The pump control box according to claim 1, characterized in that: Both drive board 1 (120) and drive board 2 (220) are equipped with electrical control components. The high-voltage modules are mainly distributed on one of the drive boards, and the low-voltage modules are mainly distributed on the other drive board.

3. A pump control box according to claim 2, characterized in that: The high-voltage modules are mainly distributed on drive board two (220), and the low-voltage modules are mainly distributed on drive board one (120).

4. A pump control box according to any one of claims 1-3, characterized in that: The first box (100) and the second box (200) are integrally formed, and the first box (100) and the second box (200) are connected to each other so as to provide electrical connection between the first drive board (120) and the second drive board (220).

5. A pump control box according to claim 1, characterized in that: It also includes a signal connector (204) and a power connector (205), both of which are located on the second housing (200).

6. A pump unit, comprising a base (300) and a control box, characterized in that: The control box as described in any one of claims 1-5 is used, wherein the first box body (100) is installed at the axial end of the base (300), and the drive plate (120) is electrically connected to the motor assembly inside the base (300); the second box body (200) is installed on the radial outer side of the base (300).

7. A pump unit according to claim 6, characterized in that: The first box (100) is a circular box with a cross-section that is consistent with the outline cross-section of the base (300), and the outline cross-section of the first box (100) does not extend beyond the axial end face of the base (300).

8. A pump unit according to claim 6, characterized in that: The second box (200) is a box with a rectangular cross-section, and the mounting bottom surface (201) of the second box (200) is an arc-shaped bottom surface that is adapted to the circumferential wall surface of the base (300).

9. A pump unit according to claim 6, characterized in that: The axial end of the base (300) is provided with a mounting post (301), and the bottom surface of the first box (100) is provided with a mounting hole (101) respectively. The base (300) and the first box (100) are fastened together by fastening bolts. An axially extending guide limit part is provided between the mounting bottom surface (201) of the second box body (200) and the circumferential wall surface of the base (300).

10. A pump unit according to any one of claims 6-9, characterized in that: The circumferential wall of the base (300) is provided with axially extending positioning ribs (302), and the two sides of the assembly bottom surface (201) of the second box (200) are respectively provided with positioning base plates (203), and a positioning groove (202) is formed between the positioning base plate (203) and the assembly bottom surface (201) for the positioning ribs (302) to be axially embedded.

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