A fluid pump control box and its mounting structure with the pump body

Abstract

This utility model discloses a fluid pump control box and its mounting structure with the pump body, belonging to the field of pump units. In the control box of this utility model, a mounting recess area is provided on the bottom wall of the box body, recessed towards the box cover. The mounting recess area is used for the mounting end of the pump base to fit into. The shaped wall surface of the mounting recess area forms an upwardly protruding inner boss in the inner cavity of the box body. A low mounting area is formed between the inner boss and the box cover, and a high mounting area is formed between the area outside the inner boss and the box cover. The low mounting area is used for the distribution of small-volume components on the power control board, and the high mounting area is used for the distribution of large-volume components on the power control board. This utility model breaks through the limitations of the traditional stacking mode of the control box and pump base, helping to reduce the overall size of the pump and improve space adaptability and installation convenience.

Description

Technical Field

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

[0002] In traditional pump unit structures, the pump body base and control box are typically installed in an axially stacked manner, meaning the control box is directly fixed to the top or side of the pump body base, with the two fitting tightly together. The pump body base primarily supports the pump body, motor, and other core components, and provides the mounting interface; its structure must ensure sufficient rigidity and stability. The control box integrates electrical control components (such as frequency converters, PLCs, and terminal blocks), responsible for the pump unit's operation control and signal processing.

[0003] In practice, the axial stacking installation method of the control box and pump body base tends to result in a larger overall pump size and a larger space occupation. This makes it difficult to adapt to environments with limited installation spaces, such as equipment compartments and underground pump rooms. The larger size also makes installation more difficult, and the handling, positioning, and fixing of the pump unit in confined spaces are more inconvenient, especially in situations requiring embedded installation or high-altitude operations, increasing construction difficulty and safety hazards. Optimizing the installation structure of the control box and pump body base, while ensuring functional reliability, and promoting the miniaturization of the overall pump structure, has significant practical implications.

[0004] A search revealed that patent CN222208406U discloses a disassembly and assembly structure for a circulating pump. A tightly fitting plug-in structure is installed between the control box and the motor body. The plug-in structure enables the positioning and installation of the control box and the motor body, making disassembly and assembly more convenient and the structure more compact. However, there is still room for improvement in its spatial layout. Utility Model Content

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

[0006] In view of the problem that the control box and pump body bearing are stacked and installed in the traditional technology, resulting in a large pump body size, this utility model provides a fluid pump control box and its installation structure with the pump body, which can break through the limitations of the stacking mode, help reduce the overall size of the pump, and improve space adaptability and installation convenience.

[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 fluid pump control box, including a box body and a box cover, which together form an inner cavity for mounting a power control board. The bottom wall of the box body is provided with a mounting recess area that is recessed towards the box cover. The mounting recess area is used for the mounting end of the pump base to fit into the box body. The shaped wall surface of the mounting recess area forms an upwardly protruding inner boss in the inner cavity of the box body. A low mounting area is formed between the inner boss and the box cover, and a high mounting area is formed between the area outside the inner boss and the box cover. The low mounting area is used for the distribution of small-volume components on the power control board, and the high mounting area is used for the distribution of large-volume components on the power control board.

[0010] Furthermore, it also includes an electronic control board, on which components extend downward toward the bottom wall of the box, with large-volume components distributed in the high mounting area and small-volume components distributed in the low mounting area.

[0011] Furthermore, multiple sets of stiffening plates are provided around the circumferential wall surface of the mounting recess area. The stiffening plates extend along the embedding direction of the pump base and are used to surround the outer periphery of the embedded part at the mounting end of the pump base.

[0012] Furthermore, the inner bosses are either centrally located within the box or not centrally located.

[0013] Furthermore, the middle of the recessed area continues to be recessed inward to form a second recessed area, and the molded wall surface of the second recessed area corresponds to the formation of an upwardly extending second boss on the top of the inner boss.

[0014] Furthermore, the inner boss is provided with multiple sets of mounting holes for connecting with the mounting end of the pump base; or / and, the height of the low mounting area is not greater than 50mm, and the height of the high mounting area is not less than 80mm; or / and, the recess depth of the mounting recess is 30mm-50mm.

[0015] This utility model also provides an installation structure for a fluid pump control box and a pump body, including a control box and a pump base. The control box is as described above, and the mounting end of the pump base is fitted into the mounting recess of the control box and fixedly connected to the shaped wall surface of the mounting recess.

[0016] Furthermore, the control box and the pump base are distributed sequentially along the axial extension direction of the pump base, with one end of the pump base axially fitted into the mounting recess of the control box; or, the control box is located on one side of the pump base in the axial direction, with at least a portion of the circumferential wall of the pump base fitted into the mounting recess of the control box.

[0017] Furthermore, the cross-sectional shape of the mounting recess is adapted to the shape of the outer wall surface of the mounting end of the pump base.

[0018] Furthermore, the control box is installed in conjunction with the axial end of the pump base, and multiple sets of axially extending stiffeners are arranged around the circumferential wall of the mounting recess, with the stiffeners fitting against the circumferential outer wall of the pump base.

[0019] 3. Beneficial effects

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

[0021] (1) In this utility model, an inwardly recessed installation recess area is provided on the bottom wall of the control box, so that a low installation area and a high installation area are formed inside the box. The installation recess area is used to achieve three-dimensional spatial cross-optimization between the pump base and the box, so as to reduce the overall pump size. The components inside the control box are also adjusted to be arranged in a hierarchical manner according to size, reducing the waste of internal space of the control box, making the overall pump layout more compact, reducing the required installation space, and facilitating installation.

[0022] (2) In this utility model, multiple sets of stiffeners are provided on the circumferential wall of the mounting recess area, extending along the embedding direction of the pump base and surrounding the outer periphery of the embedded part of the mounting end of the pump base. This not only avoids structural deformation of the box body, but also increases the gap between the circumferential wall of the mounting recess area and the outer wall of the pump base, reduces the contact area, reduces heat transfer, and forms a ventilation channel to promote heat dissipation.

[0023] (3) In this utility model, it is preferable to arrange the high-power components around the control box and concentrate the low-power components in the middle. The large-volume components have a large heat dissipation, and their distribution around the perimeter is more conducive to transferring heat to the air. The low-power components in the middle generate less heat and are less likely to form high temperatures in the control box. In this way, the overall temperature rise is reduced, the motor efficiency is further improved, and the overall energy efficiency of the pump is improved. Attached Figure Description

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

[0025] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the pump in the embodiment;

[0026] Figure 3 This is a schematic diagram of the installation state of the control box and the pump base in the embodiment;

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

[0028] Figure 5 This is a schematic diagram of the internal structure of the control box in the embodiment.

[0029] Explanation of the labels in the diagram:

[0030] 100. Pump base; 200. Box body; 201. Box cover; 202. Electrical control board; 203. Inner boss; 204. Rib plate; 205. Mounting hole; 206. Second boss; 210. Mounting recess. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] The present invention will be further described below with reference to the embodiments.

[0035] Example

[0036] Combination Figures 1-5As shown, a fluid pump control box according to this embodiment includes a box body 200 and a box cover 201, which together form an inner cavity for mounting a power control board 202. The power control board 202 can be installed in this inner cavity. The bottom wall of the box body 200 has a mounting recess area 210 recessed towards the box cover 201. The mounting recess area 210 is used for the mounting end of the pump base 100 to fit into. The shaped wall surface of the mounting recess area 210 forms an upwardly protruding inner boss 203 in the inner cavity of the box body 200. A low mounting area is formed between the inner boss 203 and the box cover 201, and a high mounting area is formed between the area outside the inner boss 203 and the box cover 201. The low mounting area is used for the distribution of small-volume components on the power control board 202, and the high mounting area is used for the distribution of large-volume components on the power control board 202. That is, the components on the control board 202 extend downwards toward the bottom wall of the box 200, with large-volume components distributed in the high mounting area and small-volume components distributed in the low mounting area.

[0037] In the current common pump body structure in the industry, the control box and pump base 100 are independent components, stacked tightly together. The sum of their dimensions determines the overall size of the pump, resulting in a relatively large overall size and installation difficulties. Furthermore, in practice, the various components installed inside the control box vary in size and height, including large components such as electrolytic capacitors, relays, and heat sinks, as well as small components such as PCB boards, surface mount resistors, and signal processing chips. However, the production design must accommodate the height and volume of all large components, leading to some wasted space within the control box cavity.

[0038] This embodiment innovatively adopts a cross-structure design, utilizing the mounting recess 210 to achieve three-dimensional spatial optimization between the pump base 100 and the housing 200, thereby reducing the overall pump size and correspondingly adjusting the hierarchical layout of components within the control box according to their dimensions. A narrow, low-mounting area is formed directly opposite the mounting recess 210 to accommodate small components, while a high-mounting area with its original extended dimensions is formed around the mounting recess 210 to accommodate larger components. This rational layout satisfies the installation requirements of components on the control board 202 while efficiently utilizing space. Furthermore, the embedded installation layout of the control box and pump base 100 reduces the overall pump size and minimizes wasted internal space in the control box, resulting in a more compact pump layout and reduced installation space, facilitating installation. Preferably, the height of the low-mounting area is no more than 50mm, and the height of the high-mounting area is no less than 80mm, which can meet the installation requirements of components of various sizes and effectively save internal space in the control box. Furthermore, the recessed depth of the recessed area 210 can be selected to be 30mm-50mm, such as 30mm, 40mm, 50mm, etc. in practice, that is, the mounting end of the pump base 100 can be effectively embedded inward to effectively reduce the overall fit height between the pump base 100 and the control box.

[0039] In practice, the inner boss 203 can be centrally located within the housing 200; or it can be non-centrally located, meaning the mounting recess 210 can be centrally located on the bottom wall of the housing 200 or eccentrically located, to facilitate the rational layout and adjustment of components within the control box. The cross-sectional shape of the mounting recess 210 can be adapted to the cross-sectional shape of the mounting end of the pump base 100. For example, if the axial end of the pump base 100 is the mounting end, and the end cross-section of the pump base 100 is circular, then the mounting recess 210 can be correspondingly set as a circular recess. When the mounting end of the pump base 100 that mates with the control box is of other shapes, the mounting recess 210 is also adjusted to other shapes to achieve a suitable installation. The housing 200 can also adopt various structural forms, such as circular or square. Preferably, the mounting recess 210 can be centrally located, meaning the center of the housing 200 is a low mounting area, while the surrounding area is a higher mounting area with more space. Large components such as capacitors, inductors, IPM modules, and rectifier bridges are arranged around these perimeters. This not only meets the volume requirements in terms of space, but also facilitates heat transfer to the air, preventing heat from being conducted to the motor, given the significant heat dissipation of these large components. The central low mounting area houses smaller, low-power components, which generate less heat and are less likely to accumulate in the control box and affect the motor. This reduces the overall temperature rise, further improves motor efficiency, and enhances the overall energy efficiency of the pump. In practice, depending on spatial requirements, the mounting recess 210 can also be non-centrally located and eccentrically positioned.

[0040] In practice, a more optimized design involves multiple sets of stiffening ribs 204 surrounding the circumferential wall of the mounting recess 210. The stiffening ribs 204 extend along the embedding direction of the pump base 100, surrounding the outer periphery of the embedded portion at the mounting end of the pump base 100. The stiffening ribs 204 can be elongated and protrude from the circumferential wall of the mounting recess 210, forming a spacer channel between adjacent stiffening ribs 204. The multiple sets of stiffening ribs 204 not only prevent structural deformation of the housing 200 and enhance installation stability, but also increase the gap between the circumferential wall of the mounting recess 210 and the outer wall of the pump base 100, reducing the contact area, reducing heat transfer, and facilitating ventilation and heat dissipation. The spacer channels formed between the multiple sets of stiffening ribs 204 also create ventilation channels to promote heat dissipation. Furthermore, the stiffening ribs 204 can also serve as guide ribs, facilitating the insertion and fitting of the pump base 100 mounting end. In practice, the pump base 100 can be designed as a conical structure with a small outer diameter at the upper mounting end and a large outer diameter at the lower end. The shape of the corresponding mounting recess 210 matches the shape of the upper mounting end of the pump base 100. Quick installation is achieved using the guide of the stiffener 204, followed by fastening. Specifically, bolts can be used for fastening. Multiple sets of mounting holes 205 are provided on the inner boss 203, which are used to mate with the mounting end of the pump base 100 and are fixed using locking bolts. More optimizedly, such as... Figure 4 As shown, the inner boss 203 is provided with multiple sets of downwardly extending mounting posts, each with a through mounting hole 205 for fastening with bolts. The mounting posts further reduce the contact area with the pump base 100 mounting end, reducing heat conduction between the pump base 100 and the control box, and facilitating the formation of gaps to promote heat dissipation.

[0041] Furthermore, in practice, optionally, the recessed area 210 can be recessed further inward to form a second recessed area, and the molded wall surface of the second recessed area corresponds to the upwardly extending second boss 206 formed on the top of the inner boss 203. For example... Figure 2 and Figure 5 As shown, the second boss 206 is adapted to the central protrusion of the pump base 100 mounting end to adapt to the shape of the pump base 100 and maintain the uniformity of the wall thickness of the control box, that is, the wall thickness of the inner boss 203 and the second boss 206 is basically the same to ensure the structural stability of the control box.

[0042] This embodiment also provides a mounting structure for a fluid pump control box and a pump body, including the control box and pump base 100 as described above. The mounting end of the pump base 100 is fitted into the mounting recess 210 of the control box and is fixedly connected to the shaped wall surface of the mounting recess 210, specifically, it is fixedly connected to the top wall of the inner boss 203 by bolts. In practice, depending on different design requirements, the control box and pump base 100 can be selected to be distributed sequentially along the axial extension direction of the pump base 100, such as... Figure 2As shown, one axial end of the pump base 100 is fitted into the mounting recess 210 of the control box to effectively reduce the assembled height in the axial direction. Preferably, multiple sets of axially extending stiffeners 204 are provided around the circumferential wall of the mounting recess 210. The stiffeners 204 fit against the circumferential outer wall of the pump base 100, reducing structural deformation of the control box, reducing heat transfer, enhancing ventilation and heat dissipation, and facilitating guided installation. Alternatively, the control box can be positioned on one side of the pump base 100 in the axial direction, with at least a portion of the circumferential wall of the pump base 100 fitted into the mounting recess 210 of the control box. In this case, the control box is installed in the radial direction of the pump base 100. The mounting recess 210 also allows for overlap between the radial height of the pump base 100 and the control box, thereby reducing the overall pump height and assembly volume. Correspondingly, the cross-sectional shape of the recessed area 210 is preferably adapted to the shape of the outer wall surface of the mounting end of the pump base 100.

[0043] 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 fluid pump control box, comprising a box body (200) and a box cover (201), the box body (200) and the box cover (201) forming an inner cavity for mounting a power control board (202); characterized in that: The bottom wall of the box body (200) is provided with a mounting recess area (210) recessed towards the box cover (201). The mounting recess area (210) is used for the mounting end of the pump base (100) to fit into the mounting. The molded wall surface of the mounting recess area (210) forms an upwardly protruding inner boss (203) in the inner cavity of the box body (200). A low mounting area is formed between the inner boss (203) and the box cover (201). A high mounting area is formed between the area outside the inner boss (203) and the box cover (201). The low mounting area is used for the distribution of small-volume components on the power supply control board (202), and the high mounting area is used for the distribution of large-volume components on the power supply control board (202).

2. The fluid pump control box according to claim 1, characterized in that: It also includes an electrical control board (202), on which the components extend downward toward the bottom wall of the box (200), with large-volume components distributed in the high mounting area and small-volume components distributed in the low mounting area.

3. A fluid pump control box according to claim 1, characterized in that: Multiple sets of stiffening plates (204) are provided around the circumferential wall surface of the mounting recess (210). The stiffening plates (204) extend along the embedding direction of the pump base (100) and are used to surround the outer periphery of the embedded part at the mounting end of the pump base (100).

4. A fluid pump control box according to claim 1, characterized in that: The inner boss (203) is centrally located within the box (200); or it is not centrally located.

5. A fluid pump control box according to claim 1, characterized in that: The middle of the recessed area (210) continues to be recessed inward to form a second recessed area, and the molding wall of the second recessed area forms an upwardly extending second boss (206) on the top of the inner boss (203).

6. A fluid pump control box according to any one of claims 1-5, characterized in that: The inner boss (203) is provided with multiple sets of mounting holes (205), which are used to connect with the mounting end of the pump base (100); or / and, the height of the low mounting area is not greater than 50mm, and the height of the high mounting area is not less than 80mm; or / and, the recess depth of the mounting recess area (210) is 30mm-50mm.

7. A mounting structure for a fluid pump control box and a pump body, comprising a control box and a pump base (100), characterized in that: Using the control box as described in any one of claims 1-6, the mounting end of the pump base (100) is fitted into the mounting recess (210) of the control box and is fixedly connected to the shaped wall surface of the mounting recess (210).

8. The mounting structure of a fluid pump control box and pump body according to claim 7, characterized in that: The control box and the pump base (100) are distributed sequentially along the axial extension direction of the pump base (100), and one end of the pump base (100) is fitted into the mounting recess (210) of the control box; or, the control box is located on one side of the pump base (100) in the axial direction, and at least a portion of the circumferential wall of the pump base (100) is fitted into the mounting recess (210) of the control box.

9. The mounting structure of a fluid pump control box and pump body according to claim 7, characterized in that: The cross-sectional shape of the mounting recess (210) is adapted to the shape of the outer wall surface of the mounting end of the pump base (100).

10. The mounting structure of a fluid pump control box and pump body according to claim 7, characterized in that: The control box is installed in conjunction with the axial end of the pump base (100). Multiple sets of axially extending stiffeners (204) are arranged around the circumferential wall of the mounting recess (210), and the stiffeners (204) are attached to the circumferential outer wall of the pump base (100).

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