A motor terminal box structure

Abstract

The utility model relates to a kind of motor terminal box structure.The utility model includes terminal seat, including terminal board and the both sides end of the first direction of terminal board is provided with connecting lug plate, first connecting hole is provided on the connecting lug plate;Terminal box body, including box body bottom wall and the box body ring wall that along the box body bottom wall circumferentially extends and is perpendicular with the box body bottom wall, the box body bottom wall is provided with the second connecting hole matched with the first connecting hole;Terminal, it is connected on the terminal seat, and its outlet direction is along the second direction perpendicular with the first direction towards one box body side wall on the box body ring wall, the box body side wall is provided with the outlet structure for the outlet of the terminal, the box body bottom wall is provided with the terminal of the allowance structure away from the end of this box body side wall.The utility model is simple in structure, flexible and safe and reliable in wiring, improves overall wiring efficiency and safety performance.

Description

Technical Field

[0001] This utility model relates to the field of motor junction box technology, and in particular to a motor junction box structure. Background Technology

[0002] The motor junction box is a crucial component connecting the motor to an external power source, and its structural design directly impacts the ease of wiring, installation flexibility, and operational safety. In existing technology, conventional motor junction boxes typically use metal or engineering plastic housings, and internally contain terminal blocks, wire clamps, and fixing screws for connecting power lines to stator winding leads. This type of structure is widely used in industrial motors, fan motors, pump motors, and automotive drive motors.

[0003] Traditional motor junction boxes often use a centrally located fixing screw structure, meaning the fixing screws of the terminal block are located in the middle of the terminal block. This layout has the following drawbacks: Restricted cable routing: Due to the presence of the center screw, the direction in which the wires or cables are led out from the terminal block is obstructed. They can usually only bend upwards or in a single direction. In installation environments with limited space or requiring multi-directional wiring, cable routing is inconvenient and increases wiring complexity.

[0004] Low space utilization: The fixed center of the terminal block makes the surrounding wiring channels irregular, and the bending radius of the wires needs to be reserved with a large space, which leads to an increase in the overall size of the junction box, which is not conducive to the design of a compact motor structure.

[0005] Potential safety hazards exist: When the direction of the conductor needs to be forcibly changed, the conductor may come into contact with other live parts, metal edges or fasteners in the junction box, which may cause safety problems such as insulation wear, short circuit and poor contact.

[0006] In summary, the existing structural design of motor junction boxes has shortcomings in terms of flexibility in cable routing, internal space utilization, and safety. Therefore, there is an urgent need to provide an optimized internal structure solution for motor junction boxes that is simple in structure, flexible in wiring, and safe and reliable, in order to improve overall wiring efficiency and safety performance. Summary of the Invention

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the existing motor junction box structure design in terms of flexibility of outgoing wire direction, internal space utilization and safety, and to provide a motor junction box structure that is simple in structure, flexible in wiring and safe and reliable, thereby improving the overall wiring efficiency and safety performance.

[0008] To solve the above technical problems, this utility model provides a motor junction box structure, comprising: A terminal block includes a terminal block and connecting lugs provided on both sides of the terminal block in a first direction, wherein the connecting lugs are provided with first connecting holes. The junction box body includes a bottom wall and a ring wall extending circumferentially along the bottom wall and perpendicular to it. The bottom wall is provided with a second connection hole that mates with the first connection hole. A terminal block is connected to the terminal block, and its wire exit direction is along a second direction perpendicular to the first direction toward a side wall of the housing ring wall. The side wall of the housing is provided with a wire exit structure for the terminal block to exit. The bottom wall of the housing away from the side wall of the housing is provided with a clearance structure for installing the terminal block.

[0009] In one embodiment of this utility model, the cable outlet structure includes a cable outlet.

[0010] In one embodiment of this utility model, a plurality of the cable outlets are spaced apart along a first direction of the side wall of the box and their positions correspond to the wiring terminals.

[0011] In one embodiment of this utility model, the side wall of the box is provided with a cable outlet tube extending along the second direction to each of the cable outlets.

[0012] In one embodiment of this utility model, a first fastening screw is connected between the first connecting hole and the second connecting hole.

[0013] In one embodiment of this utility model, partitions are spaced apart along a first direction of the wiring board, and terminal blocks are connected between adjacent partitions. A second fastening screw is connected between the terminal block and the wiring terminal.

[0014] In one embodiment of the present invention, the clearance structure is configured as a slot formed between the ring wall of the box and the bottom wall of the box.

[0015] In one embodiment of the present invention, a folded plate extends along the second direction of the wiring board and near one end of the relief structure toward the relief structure.

[0016] In one embodiment of this utility model, reinforcing ribs are distributed at intervals along the first direction of the bottom wall of the box.

[0017] In one embodiment of this utility model, the outer end of the box body ring wall is connected to the box body cover plate by a third fastening screw.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art: The present invention discloses a motor junction box structure that, by changing the fixed position of the terminal block, allows the wires to be directly led out from the terminal block to the wire outlet structure on the side wall of the box, freeing up the space in front of the terminal block and making it suitable for compact equipment with limited installation depth.

[0019] This invention eliminates the existing fixing screw structure in the middle of the terminal block, freeing up the central area inside the junction box, making the wire arrangement more regular and orderly. While maintaining the same wiring function, it helps to reduce the overall size of the junction box and improve the integration of the motor structure.

[0020] The wiring terminal of this utility model has a shorter wire exit path and a gentler curvature, which reduces the risk of mechanical fatigue and insulation wear caused by long-term bending of the wire core, while avoiding interference between the wire and other components, thus improving electrical safety and system reliability.

[0021] This invention does not require modification of components such as connectors and terminals, resulting in low modification costs. It is suitable for rapid upgrades and mass production based on existing products. Attached Figure Description

[0022] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0023] Figure 1 This is an exploded structural diagram of the motor junction box structure of this utility model.

[0024] Figure 2 This is an overall structural diagram of the motor junction box structure of this utility model (with hidden box cover).

[0025] Figure 3 This is a structural diagram of the junction box body of this utility model.

[0026] Figure 4 This is a structural diagram of the terminal block of this utility model.

[0027] Explanation of reference numerals in the instruction manual: 1. Terminal block; 11. Terminal board; 12. Connecting lug; 121. First connecting hole; 13. Folding plate; 14. Partition plate; 15. Terminal block; 2. Junction box body; 21. Box bottom wall; 211. Second connection hole; 212. Reinforcing rib; 22. Box ring wall; 221. Box side wall; 23. Cable exit structure; 231. Cable exit port; 232. Cable exit pipe; 24. Clearance structure; 3. Wiring terminals; 4. First fastening screw; 5. Second fastening screw; 6. Third fastening screw; 7. Box cover. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0030] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0031] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0032] Reference Figure 1 , Figure 2 As shown, the present invention provides a motor junction box structure, comprising: The terminal block 1 includes a terminal block 11 and connecting lugs 12 provided on both sides of the terminal block 11 along a first direction. The connecting lugs 12 are provided with first connecting holes 121. The junction box body 2 includes a box bottom wall 21 and a box ring wall 22 extending circumferentially along the box bottom wall 21 and perpendicular to the box bottom wall 21. The box bottom wall 21 is provided with a second connection hole 211 that cooperates with the first connection hole 121. The terminal block 3 is connected to the terminal block 1, and its wire outlet direction is along a second direction perpendicular to the first direction toward a box side wall 221 on the box ring wall 22. The box side wall 221 is provided with a wire outlet structure 23 for the terminal block 3 to exit. The bottom wall 21 of the box away from the box side wall 221 is provided with a clearance structure 24 for installing the terminal block 3.

[0033] With the above configuration, the terminal block 1 is provided with a terminal block 3 for connecting external wires. The wire exit direction of the terminal block 3 is arranged along a second direction perpendicular to the extension direction of the terminal block 1 toward the side wall of the junction box body 2. Since the first connecting hole 121 and the second connecting hole 211 are located on both sides of the terminal block 1, the area directly in front of the terminal block 3 (i.e. the wire exit structure 23) forms an unobstructed lead-out space, and the wire can complete the exit in a smoother path.

[0034] In one embodiment, refer to Figure 3 As shown, the cable outlet structure 23 includes cable outlets 231. Specifically, a plurality of cable outlets 231 are spaced apart along a first direction of the side wall 221 of the housing and are positioned corresponding to the wiring terminals 3.

[0035] In one embodiment, the side wall 221 of the housing is provided with a cable outlet 232 extending in a second direction into each of the cable outlets 231 to guide the cable through a fixed path.

[0036] In one embodiment, a first fastening screw 4 is connected between the first connecting hole 121 and the second connecting hole 211, thereby achieving a secure installation of the terminal block 1 and the junction box body 2.

[0037] In one embodiment, refer to Figure 4 As shown, partitions 14 are spaced apart along the first direction of the wiring board 11, and terminal blocks 15 are connected between adjacent partitions 14. A second fastening screw 5 is connected between the terminal block 15 and the wiring terminal 3.

[0038] In one embodiment, the clearance structure 24 is configured as a slot formed between the housing ring wall 22 and the housing bottom wall 21 to provide additional space for the installation and wiring of the terminal block 3, avoiding interference.

[0039] In one embodiment, a folding plate 13 extends along a second direction of the terminal block 11 and near one end of the relief structure 24 toward the relief structure 24.

[0040] In one embodiment, refer to Figure 3As shown, in order to enhance the structural strength of the junction box, reinforcing ribs 212 are distributed at intervals along the first direction of the bottom wall 21 of the box body, and the reinforcing ribs 212 are in contact with the bottom wall of the junction plate 11.

[0041] In one embodiment, the outer end of the box body ring wall 22 is connected to the box body cover plate 7 by a third fastening screw 6.

[0042] By adjusting the fixed position of the terminal block 1 from the existing center to both sides of the junction box body 2, the area in front of the terminal block 3 is completely cleared, providing a straight and unobstructed path for the wires. This structural optimization achieves flexibility in wiring and optimization of the internal space layout without changing the size of the junction box or the arrangement of internal components.

[0043] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A motor junction box structure, characterized in that, include: The terminal block (1) includes a terminal block (11) and connecting ear plates (12) provided on both sides of the terminal block (11) in a first direction. The connecting ear plates (12) are provided with first connecting holes (121). The junction box body (2) includes a bottom wall (21) and a ring wall (22) extending circumferentially along the bottom wall (21) and perpendicular to the bottom wall (21). The bottom wall (21) is provided with a second connection hole (211) that cooperates with the first connection hole (121). The terminal block (3) is connected to the terminal block (1), and its wire outlet direction is along a second direction perpendicular to the first direction toward a box side wall (221) on the box ring wall (22). The box side wall (221) is provided with a wire outlet structure (23) for the terminal block (3) to exit. The bottom wall (21) of the box away from the box side wall (221) is provided with a clearance structure (24) for installing the terminal block (3).

2. The motor junction box structure according to claim 1, characterized in that, The outgoing structure (23) includes an outgoing port (231).

3. The motor junction box structure according to claim 2, characterized in that, Multiple outlets (231) are spaced apart along the first direction of the side wall (221) of the box and their positions correspond to the wiring terminals (3).

4. The motor junction box structure according to claim 3, characterized in that, The side wall (221) of the box is provided with a cable outlet pipe (232) extending in the second direction to each of the cable outlets (231).

5. The motor junction box structure according to claim 1, characterized in that, A first fastening screw (4) is connected between the first connecting hole (121) and the second connecting hole (211).

6. The motor junction box structure according to claim 1, characterized in that, Partitions (14) are spaced apart along the first direction of the wiring board (11), and terminal blocks (15) are connected between adjacent partitions (14). A second fastening screw (5) is connected between the terminal block (15) and the wiring terminal (3).

7. The motor junction box structure according to claim 1, characterized in that, The clearance structure (24) is configured as a slot formed between the ring wall (22) of the box and the bottom wall (21) of the box.

8. The motor junction box structure according to claim 1, characterized in that, A fold plate (13) extends along the second direction of the wiring plate (11) and near one end of the relief structure (24) toward the relief structure (24).

9. The motor junction box structure according to claim 1, characterized in that, Reinforcing ribs (212) are distributed at intervals along the first direction of the bottom wall (21) of the box.

10. The motor junction box structure according to claim 1, characterized in that, The outer end of the ring wall (22) of the box is connected to the box cover plate (7) by a third fastening screw (6).

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