Power drive housing
By designing a waterproof material accommodating groove structure for the edge and cover plate in the power drive housing and using a snap-fit connection, the problem of moisture ingress caused by the gap between the housing and the cover plate is solved, achieving waterproof protection and convenient installation of the power drive, extending its service life and improving production and maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGSHAN ZHENGYI ELECTROMECHANICAL IND CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-12
AI Technical Summary
Existing power drive housings have gaps between the housing and the cover, which allow moisture to easily enter and affect the lifespan of the power drive.
A power drive housing was designed, which adopts a waterproof material receiving groove structure with the edge and cover plate tightly attached. Combined with the snap-fit and plug-in connection method, it ensures that a stable waterproof structure is formed between the housing and the cover plate, and the circuit board can be easily installed through the support plate.
It effectively prevents moisture from entering the power drive mounting cavity, extending the service life of the power drive, while also improving the efficiency of production and maintenance.
Smart Images

Figure CN224233990U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power drive device technology, specifically to a power drive housing. Background Technology
[0002] Existing power drive housings generally consist of a housing and a cover. However, a gap inevitably exists between the housing and the cover, allowing moisture and other substances to easily enter the power drive mounting cavity through this gap, affecting the service life of the power drive. Therefore, there is an urgent need to develop a power drive housing with a waterproof structure. Utility Model Content
[0003] The purpose of this utility model is to provide a power drive housing that solves the problem that moisture can easily enter the power drive mounting cavity through the gap between the shell and the cover plate of the existing power drive housing, thus affecting the service life of the power drive.
[0004] To solve the above problems, the present invention provides the following technical solution:
[0005] A power drive housing includes a housing and a cover plate that can be closed with the housing. The housing has a power drive mounting cavity. A retaining edge is provided on the housing at the connection end between the housing and the cover plate. The retaining edge is in close contact with the cover plate when the cover plate is closed with the housing. A waterproof material receiving groove is provided on the side of the retaining edge facing the cover plate.
[0006] As described above, in the power drive housing, the retaining edge extends from the periphery of the housing toward the inside of the housing.
[0007] As described above, the power drive housing and the cover are connected by a snap-fit structure. The snap-fit structure includes a first snap block and a first snap slot on the housing, and a second snap block and a second snap slot on the cover. When the cover is closed with the housing, the first snap block engages with the second snap slot, and the second snap block engages with the first snap slot.
[0008] As described above, the power drive housing has a first pushing slope at one end of the first card block away from the first card slot, and a second pushing slope at one end of the second card block away from the second card slot.
[0009] The power drive housing as described above includes a main housing and end caps disposed at both ends of the main housing and detachably connected to the main housing.
[0010] As described above, the power drive housing includes a first stop edge disposed on the main housing and a second stop edge disposed on the end cap; the first stop edge has a first chamfered surface at both ends, and the first chamfered surface forms a 45° angle with the length direction of the first stop edge; the second stop edge has a second chamfered surface at both ends, and the second chamfered surface forms a 45° angle with the length direction of the second stop edge.
[0011] As described above, in the power drive housing, the main housing and the end cover are connected by a mating structure. The mating structure includes a slot on the main housing and an insert plate on the end cover, the insert plate engaging with the slot.
[0012] As described above, the power drive housing has a limiting protrusion on the side wall of one of the slots and the insert plate, and a limiting groove on the side wall of the other of the slots and the insert plate that cooperates with the limiting protrusion.
[0013] As described above, in the power drive housing, the limiting protrusion is provided on the side wall of the slot away from the power drive mounting cavity, and the slot opening is provided with two baffles extending in a direction that approaches each other, forming a gap between the two baffles.
[0014] As described above, the power drive housing has a support plate for mounting a circuit board on the side of the end cover facing the power drive mounting cavity, and the support plate has mounting holes.
[0015] Compared with the prior art, the present invention has the following advantages:
[0016] 1. The power drive housing provided by this utility model has a flange on the housing that fits tightly against the inner wall of the cover plate when the cover plate and the housing are closed. At the same time, waterproof materials such as waterproof gaskets or waterproof adhesives can be placed in the waterproof material receiving groove on the flange, so that a stable waterproof structure is formed between the cover plate and the housing. This effectively prevents water vapor from entering the power drive mounting cavity through the gap between the housing and the cover plate, thus providing effective protection for the power drive and helping to ensure the service life of the power drive.
[0017] 2. The power drive housing provided by this utility model has a housing and a cover plate connected by a snap-fit structure, and the main shell and end cover in the housing are connected by an insertion structure, which makes installation and disassembly convenient and quick, and helps to improve production and maintenance efficiency.
[0018] 3. The power drive housing provided by this utility model has a support plate on the end cover for mounting the circuit board. The mounting plate has assembly holes, and the circuit board can be directly mounted on the support plate and quickly positioned and installed by screws engaging with the assembly holes. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the power drive housing according to an embodiment of the present invention.
[0021] Figure 2 This is a schematic diagram of the connection structure between the housing and the cover plate of the power drive housing according to an embodiment of the present utility model.
[0022] Figure 3 This is an exploded view of the power drive housing according to an embodiment of the present invention.
[0023] The corresponding numbers for the attached figures are as follows:
[0024] 1. Housing; 100. Power drive mounting cavity; 101. Edge; 1011. First edge; 1012. Second edge; 1013. First beveled surface; 1014. Second beveled surface; 102. Waterproof material receiving groove; 103. Heat dissipation fin; 11. Main shell; 111. Baffle; 112. Notch; 12. End cap; 121. Support plate; 122. Assembly hole; 123. Mounting plate; 124. Mounting hole; 2. Cover plate; 31. First locking block; 32. First slot; 33. Second locking block; 34. Second slot; 35. First pushing bevel; 36. Second pushing bevel; 41. Slot; 42. Insert plate; 43. Limiting protrusion; 44. Limiting groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see the appendix Figure 1 To be continued Figure 3This embodiment provides a power drive housing, including a housing 1 and a cover plate 2 that can be closed with the housing 1. The housing 1 has a power drive mounting cavity 100. A retaining edge 101 is provided on the housing 1 at the connection end between the housing 1 and the cover plate 2. The retaining edge 101 is in close contact with the cover plate 2 when the cover plate 2 is closed with the housing 1. A waterproof material receiving groove 102 is provided on the side of the retaining edge 101 facing the cover plate 2. In this embodiment, when the cover plate 2 and the housing 1 are closed, the retaining edge 101 on the housing 1 is in close contact with the inner wall of the cover plate 2. At the same time, a waterproof gasket or waterproof adhesive can be placed in the waterproof material receiving groove 102 on the retaining edge 101, so that a stable waterproof structure is formed between the cover plate 2 and the housing 1. This effectively prevents water vapor from entering the power drive mounting cavity 100 through the gap between the housing 1 and the cover plate 2, thus providing effective protection for the power drive and helping to ensure the service life of the power drive.
[0027] Furthermore, the retaining edge 101 extends from the periphery of the housing 1 towards the inner side of the housing 1. Increasing the width of the retaining edge 101 not only increases the contact area between the retaining edge 101 and the cover plate 2, but also increases the volume of the waterproof material receiving groove 102, allowing for more waterproof material to be filled within it. This creates a wider waterproof enclosure between the housing 1 and the cover plate 2, further enhancing the waterproofing effect.
[0028] Furthermore, the waterproof material receiving groove 102 is located at the middle position on the side of the retaining edge 101 facing the cover plate 2, that is, both ends of the groove of the waterproof material receiving groove 102 are in close contact with the cover plate 2, resulting in better waterproofing effect.
[0029] Preferably, the cross-section of the waterproof material receiving groove 102 is arc-shaped, which helps to increase the contact area between the waterproof material and the waterproof material receiving groove 102, ensures that the waterproof material and the waterproof material receiving groove 102 fit tightly, and prevents water vapor from entering the power drive installation cavity 100.
[0030] The power drive housing in this embodiment has a stable and effective waterproof structure between the housing 1 and the cover plate 2, as well as a connection structure that facilitates installation and disassembly.
[0031] Furthermore, the housing 1 and the cover plate 2 are connected by a snap-fit structure. This snap-fit structure includes a first snap-fit block 31 and a first snap-fit groove 32 on the housing 1, and a second snap-fit block 33 and a second snap-fit groove 34 on the cover plate 2. When the cover plate 2 is closed to the housing 1, the first snap-fit block 31 engages with the second snap-fit groove 34, and the second snap-fit block 33 engages with the first snap-fit groove 32. The snap-fit structure connects the housing 1 and the cover plate 2, making installation and disassembly convenient and quick, which helps improve production and maintenance efficiency.
[0032] Furthermore, the first locking block 31 has a first pushing slope 35 at the end away from the first locking slot 32, and the second locking block 33 has a second pushing slope 36 at the end away from the second locking slot 34. When the cover plate 2 and the housing 1 are closed, the first pushing slope 35 on the first locking block 31 contacts the second pushing slope 36 on the second locking block 33. With the closing force, the first pushing slope 35 and the second pushing slope 36 push against each other, allowing the first locking block 31 to smoothly enter the second locking slot 34 and the second locking block 33 to smoothly enter the first locking slot 32. Through the cooperation of the first pushing slope 35 and the second pushing slope 36, the first locking block 31 enters the second locking slot 34 and the second locking block 33 enters the first locking slot 32 effectively. Through the cooperation of the first locking block 31 and the second locking slot 34, and through the cooperation of the second locking block 33 and the first locking slot 32, a stable connection between the cover plate 2 and the housing 1 is effectively achieved.
[0033] Furthermore, the housing 1 includes a main housing 11 and end caps 12 disposed at both ends of the main housing 11 and detachably connected to the main housing 11.
[0034] The flange 101 includes a first flange 1011 disposed on the main shell 11 and a second flange 1012 disposed on the end cap 12. The first flange 1011 has a first chamfered surface 1013 at both ends, forming a 45° angle with the length direction of the first flange 1011. The second flange 1012 has a second chamfered surface 1014 at both ends, forming a 45° angle with the length direction of the second flange 1012. When the end cap 12 is connected to the main shell 11, the second chamfered surfaces 1014 at both ends of the second flange 1012 fit against the first chamfered surfaces 1013 on the first flange 1011. The second flange 1012 and the first flange 1011 form a waterproof enclosure structure, effectively preventing moisture from entering the power drive mounting cavity 100 through the gap between the shell 1 and the cover plate 2, thus effectively protecting the power drive and ensuring its service life.
[0035] Furthermore, the main shell 11 and the end cap 12 are connected by a mating structure, which includes a slot 41 on the main shell 11 and an insert plate 42 on the end cap 12, the insert plate 42 engaging with the slot 41. The mating structure connects the main shell 11 and the end cap 12 in the housing 1, facilitating convenient and quick installation and disassembly, thus improving production and maintenance efficiency.
[0036] Furthermore, a limiting protrusion 43 is provided on the side wall of one of the slot 41 and the insert plate 42, and a limiting groove 44 that cooperates with the limiting protrusion 43 is provided on the side wall of the other of the slot 41 and the insert plate 42. When the end cover 12 is connected to the main shell 11, the insert plate 42 on the end cover 12 cooperates with the slot 41 on the main shell 11. At the same time, the limiting protrusion 43 cooperates with the limiting groove 44, effectively locking the insert plate 42 and the slot 41, preventing the insert plate 42 from disengaging from the slot 41, and achieving a stable connection between the end cover 12 and the main shell 11.
[0037] Preferably, the limiting protrusion 43 is disposed on the side wall of the slot 41 at the end away from the power drive mounting cavity 100. The slot 41 has two baffles 111 extending towards each other at its opening, with a notch 112 formed between the two baffles 111. On one hand, the baffles 111 at the opening of the slot 41 can effectively limit the insertion plate 42, making the connection between the insertion plate 42 and the slot 41 more stable. On the other hand, since the inner side wall of the slot 41 has the limiting protrusion 43, when the insertion plate 42 enters the slot 41, the slot 41 inevitably undergoes slight deformation under the interaction force between the limiting protrusion 43 and the insertion plate 42. At this time, since the two baffles 111 at the opening of the slot 41 are not fixedly connected, but rather a notch 112 is formed between them, the two baffles 111 can move away from or towards each other when the slot 41 undergoes slight deformation, thus providing structural support for the slight deformation of the slot 41.
[0038] Furthermore, the end cap 12 has a support plate 121 for mounting the circuit board on the side facing the power drive mounting cavity 100, and the support plate 121 has mounting holes 122. The circuit board can be directly mounted on the support plate 121 and quickly positioned and installed by screws engaging with the mounting holes 122. Preferably, each of the two end caps 12 has two support plates 121, and the four support plates 121 together provide stable support for the installation of the circuit board. The mounting holes 122 are threaded to engage with screws.
[0039] In addition, a mounting plate 123 is provided on the side of the end cover 12 away from the power drive mounting cavity 100 for positioning and mounting the power drive housing. The mounting plate 123 is provided with mounting holes 124.
[0040] In addition, several heat dissipation fins 103 are provided on both side plates of the main shell 11 to dissipate heat from the power supply driving the shell.
[0041] It should be understood that the terms "first," "second," etc., are used in this utility model to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this utility model, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, 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.
[0042] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.
Claims
1. A power drive housing, comprising a housing (1) and a cover plate (2) that can be closed with the housing (1), wherein the housing (1) is provided with a power drive mounting cavity (100), characterized in that, The housing (1) is provided with a retaining edge (101) at the connection end between the housing (1) and the cover plate (2). The retaining edge (101) is in close contact with the cover plate (2) when the cover plate (2) is closed with the housing (1). A waterproof material receiving groove (102) is provided on the side of the retaining edge (101) facing the cover plate (2).
2. The power drive housing according to claim 1, characterized in that, The flange (101) extends from the periphery of the housing (1) toward the inside of the housing (1).
3. The power drive housing according to claim 1, characterized in that, The housing (1) and the cover plate (2) are connected by a snap-fit structure. The snap-fit structure includes a first snap-fit block (31) and a first snap-fit groove (32) provided on the housing (1), and a second snap-fit block (33) and a second snap-fit groove (34) provided on the cover plate (2). When the cover plate (2) is closed with the housing (1), the first snap-fit block (31) cooperates with the second snap-fit groove (34), and the second snap-fit block (33) cooperates with the first snap-fit groove (32).
4. The power drive housing according to claim 3, characterized in that, The first card block (31) has a first pushing slope (35) at one end away from the first card slot (32), and the second card block (33) has a second pushing slope (36) at one end away from the second card slot (34).
5. The power drive housing according to any one of claims 1-4, characterized in that, The housing (1) includes a main housing (11) and end caps (12) located at both ends of the main housing (11) and detachably connected to the main housing (11).
6. The power drive housing according to claim 5, characterized in that, The retaining edge (101) includes a first retaining edge (1011) disposed on the main shell (11) and a second retaining edge (1012) disposed on the end cap (12); the first retaining edge (1011) has a first oblique surface (1013) at both ends, and the first oblique surface (1013) forms a 45° angle with the length direction of the first retaining edge (1011); the second retaining edge (1012) has a second oblique surface (1014) at both ends, and the second oblique surface (1014) forms a 45° angle with the length direction of the second retaining edge (1012).
7. The power drive housing according to claim 5, characterized in that, The main shell (11) and the end cap (12) are connected by a mating structure, which includes a slot (41) on the main shell (11) and a plate (42) on the end cap (12), the plate (42) cooperating with the slot (41).
8. The power drive housing according to claim 7, characterized in that, A limiting protrusion (43) is provided on the side wall of one of the slots (41) and the insert plate (42), and a limiting groove (44) that cooperates with the limiting protrusion (43) is provided on the side wall of the other of the slots (41) and the insert plate (42).
9. The power drive housing according to claim 8, characterized in that, The limiting protrusion (43) is provided on the side wall of the slot (41) away from the power drive mounting cavity (100). The slot (41) has two baffles (111) extending towards each other at the opening, and a notch (112) is formed between the two baffles (111).
10. The power drive housing according to claim 5, characterized in that, The end cap (12) has a support plate (121) for mounting the circuit board on the side facing the power drive mounting cavity (100), and the support plate (121) has mounting holes (122).