Plastic shell of power module
The plastic shell design with card slots and rotating blocks addresses the inefficiency of full replacement by enabling adjustable installation and component-specific repairs, enhancing repair efficiency and cost-effectiveness.
Patent Information
- Application Number
- CN202323545849.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-25
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-12-25
AI Technical Summary
Existing power module shells require complete replacement when threaded holes are damaged, leading to inefficient and costly repairs.
A plastic shell design with a mounting device featuring card slots, fixing plates, and rotating blocks that allow for adjustable installation height and method selection, enabling individual component replacement and easy installation.
Facilitates easy and cost-effective repair by allowing individual component replacement and adjustable installation, reducing the need for full shell replacement.
Smart Images
Figure CN222281974U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of power modules, in particular to a plastic shell of a power module. Background Art
[0002] Power modules are widely used in solar power generation, rail transit, electrical transmission, motor control and other fields due to their high integration, high reliability, energy saving and environmental protection, as well as drive control fields such as automotive drive and hybrid power, wind power, welding machine, locomotive traction, etc.
[0003] In the prior art, a utility model patent with publication number CN218996694U provides a plastic shell of a power module and a power module, wherein the plastic shell comprises a shell having a first mounting surface and a second mounting surface arranged on both sides of the first mounting surface; a plurality of rounded rectangular grooves arranged on the first mounting surface; a mounting hole arranged on the second mounting surface, and a plurality of threaded guide teeth with a certain thickness are arranged on the inner side wall of the mounting hole.
[0004] The plastic shell of the power module and the power module can directly replace the card block when the threaded hole is damaged, avoiding the need to replace the entire shell, so that the fixing method can be selected according to needs, making it easy to install the shell. For this reason, we propose a plastic shell of a power module to solve the above problem. Utility Model Content
[0005] The purpose of the utility model is to provide a plastic shell of a power module to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic shell of a power module, comprising a shell, a mounting device is provided on the back of the shell, the mounting device is used to mount the shell on a mounting bracket, the mounting device comprises a card slot provided on the back of the shell, a card block is movably inserted into the card slot, both ends of the card block are fixedly connected with fixing plates, the fixing plate is threadedly connected with a screw for fixing the fixing plate to the back of the shell, a threaded hole for threaded connection of a bolt is provided on the end face of the card block away from the shell, and a fixing device is provided on the shell on one side of the card slot.
[0007] Preferably, the fixing device is used to fix the shell on the mounting bracket.
[0008] Preferably, a groove is provided on the back of the shell, and the fixing device includes a rotating shaft rotatably connected to the groove on the back of the shell, one end of the rotating shaft is fixedly connected to a rotating block for supporting the rotating block to flip into the groove of the shell, and the bottom of the rotating block is provided with two threaded holes for matching bolts.
[0009] Preferably, the card slots are provided with two groups symmetrically distributed on the back of the shell, the card slots are rectangular structures, the outer wall of the card block is wrapped with a rubber layer, and the size of the card block is less than or equal to the size of the card slot.
[0010] Preferably, the fixing plates are provided with two groups symmetrically arranged at the two vertical ends of the card block, and the sum of the height of the fixing plates and the height of the card block is greater than the height of the card slot.
[0011] Preferably, one end of the screw is threaded through the fixing plate and threadedly connected to the back of the shell, the screw is a round head screw, and the threaded hole one is provided with multiple groups vertically distributed on the block, and the distance between two adjacent groups of threaded holes one is greater than the aperture of the threaded hole one.
[0012] Preferably, a torsion spring for pushing the rotating block to flip to the housing groove is provided at the rotating shaft rotation connection housing, and the size of the rotating block is smaller than the size of the housing groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. Insert the card block into the card slot, and then turn the screw. The screw thread connects the fixing plate and the shell to fix the fixing plate on the shell, thereby completing the fixation of the card block. Then align the threaded hole 1 with the screw hole on the mounting bracket, and thread the mounting bracket and the threaded hole 1 through the bolt thread to fix the card block on the mounting bracket, thereby completing the fixation of the shell on the mounting bracket. Since the threaded holes 1 on a group of card blocks are located at different heights, the bolts are connected to different groups of threaded holes 1 to adjust the installation height of the shell. When the threaded hole 1 is damaged, the card block can be directly replaced to avoid the need to replace the entire shell.
[0015] 2. When the above scheme is not convenient for installation, the rotating block can be flipped. The rotating block can be flipped in the groove of the shell through the rotating shaft. After flipping the rotating block ninety degrees and flipping the threaded hole 2 to a horizontal position, align the threaded hole 2 with the screw hole of the mounting bracket and fix it with bolts, so that the fixing method can be selected according to needs, making it easy to install the shell. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the installation device in the utility model;
[0018] Figure 3 It is a structural schematic diagram of the fixing device in the utility model.
[0019] In the figure: 1, housing; 2, mounting device; 21, slot; 22, block; 23, fixing plate; 24, screw; 25, threaded hole 1; 3, fixing device; 31, rotating shaft; 32, rotating block; 33, threaded hole 2. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-3 A plastic shell of a power module includes a shell 1, a mounting device 2 is provided on the back of the shell 1, and the mounting device 2 is used to mount the shell 1 on a mounting bracket. The mounting device 2 includes a card slot 21 provided on the back of the shell 1, a card block 22 is movably inserted into the card slot 21, and a fixing plate 23 is fixedly connected to both ends of the card block 22. The fixing plate 23 is threadedly connected with a screw 24 for fixing the fixing plate 23 to the back of the shell 1. A threaded hole 25 for threadedly connecting a bolt is provided on the end surface of the card block 22 away from the shell 1. The card slot 21 has two groups of symmetrically divided It is arranged on the back of the shell 1, the slot 21 is a rectangular structure, the outer wall of the block 22 is wrapped with a rubber layer, the size of the block 22 is less than or equal to the size of the slot 21, and the fixing plate 23 is provided with two groups symmetrically arranged on the vertical ends of the block 22, the sum of the height of the fixing plate 23 and the height of the block 22 is greater than the height of the slot 21, one end of the screw 24 is threaded through the fixing plate 23 and is threadedly connected to the back of the shell 1, the screw 24 is a round head screw, and a plurality of groups of threaded holes 25 are provided and vertically distributed on the block 22, and the distance between two adjacent groups of threaded holes 25 is greater than the aperture of the threaded hole 25.
[0022] Insert the block 22 into the slot 21, and then turn the screw 24. The screw 24 is threadedly connected to the fixing plate 23 and the shell 1 to fix the fixing plate 23 on the shell 1, thereby completing the fixation of the block 22. Then, align the threaded hole 25 with the screw hole on the mounting bracket, and thread the mounting bracket and the threaded hole 25 through the bolt to fix the block 22 on the mounting bracket, thereby completing the fixation of the shell 1 on the mounting bracket. Since a group of threaded holes 25 on the block 22 are located at different heights, different groups of threaded holes 25 are connected by bolts to adjust the installation height of the shell 1. When the threaded hole 25 is damaged, the block 22 can be directly replaced to avoid the need to replace the entire shell 1.
[0023] A fixing device 3 is provided on the shell 1 on one side of the slot 21. The fixing device 3 is used to fix the shell 1 on the mounting bracket. A groove is provided on the back of the shell 1. The fixing device 3 includes a rotating shaft 31 rotatably connected to the groove on the back of the shell 1. A rotating block 32 is fixedly connected to one end of the rotating shaft 31 to support the rotating block 32 to flip into the groove of the shell 1. A threaded hole 33 for matching the bolt is provided at the bottom of the rotating block 32. A torsion spring is provided at the place where the rotating shaft 31 is rotatably connected to the shell 1 to push the rotating block 32 to flip into the groove of the shell 1. The size of the rotating block 32 is smaller than the size of the groove of the shell 1.
[0024] When the above scheme is not convenient for installation, the rotating block 32 can be flipped. The rotating block 32 is flipped in the groove of the shell 1 through the rotating shaft 31. After the rotating block 32 is flipped ninety degrees and the threaded hole 33 is flipped to a horizontal position, the threaded hole 33 is aligned with the screw hole of the mounting bracket and fixed and installed by bolts, so that the fixing method can be selected according to needs, making it easy to install the shell 1.
[0025] Working principle: The utility model inserts the card block 22 into the card slot 21, and then rotates the screw 24, the screw 24 is threadedly connected to the fixing plate 23 and the shell 1, the fixing plate 23 is fixed to the shell 1, and then the card block 22 is fixed, and then the threaded hole 25 is aligned with the screw hole on the mounting bracket, the mounting bracket and the threaded hole 25 are threadedly connected by the bolt, the card block 22 is fixed to the mounting bracket, and then the shell 1 is fixed to the mounting bracket. Since the threaded holes 25 on a group of card blocks 22 are located at different heights, the bolt connection is not The same group of threaded holes 25 can adjust the installation height of the shell 1. When the threaded hole 25 is damaged, the block 22 can be directly replaced to avoid the need to replace the entire shell 1. When the above scheme is not convenient for installation, the rotating block 32 can be flipped. The rotating block 32 is flipped in the groove of the shell 1 through the rotating shaft 31. After the rotating block 32 is flipped ninety degrees and the threaded hole 33 is flipped to a horizontal position, the threaded hole 33 is aligned with the screw hole of the mounting bracket and fixed and installed by bolts, so that the fixing method can be selected according to needs, making it easy to install the shell 1.
[0026] The connection between the bolt and the mounting bracket is prior art and will not be described in detail here.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A plastic shell of a power module, comprising a shell (1), characterized in that: The shell (1) is provided with a mounting device (2) on the back side, and the mounting device (2) is used to mount the shell (1) on a mounting bracket. The mounting device (2) comprises a slot (21) provided on the back side of the shell (1), a block (22) is movably inserted into the slot (21), both ends of the block (22) are fixedly connected with fixing plates (23), the fixing plates (23) are threadedly connected with screws (24) for fixing the fixing plates (23) on the back side of the shell (1), a threaded hole (25) for threaded connection with a bolt is provided on the end surface of the block (22) on the side away from the shell (1), and a fixing device (3) is provided on the shell (1) on the side of the slot (21).
2. The plastic shell of the power module according to claim 1, characterized in that: The fixing device (3) is used to fix the housing (1) on the mounting bracket.
3. The plastic shell of the power module according to claim 2, characterized in that: The shell (1) is provided with a groove on the back side, and the fixing device (3) comprises a rotating shaft (31) rotatably connected to the groove on the back side of the shell (1), one end of the rotating shaft (31) is fixedly connected to a rotating block (32) for supporting the rotating block (32) to flip into the groove of the shell (1), and the bottom of the rotating block (32) is provided with a threaded hole (33) for matching with a bolt.
4. The plastic shell of the power module according to claim 1, characterized in that: The card slots (21) are provided with two groups symmetrically distributed on the back of the housing (1); the card slots (21) are of a rectangular structure; the outer wall of the card block (22) is wrapped with a rubber layer; and the size of the card block (22) is smaller than or equal to the size of the card slot (21).
5. The plastic shell of the power module according to claim 1, characterized in that: The fixing plates (23) are provided with two groups symmetrically arranged at two vertical ends of the clamping block (22); the sum of the height of the fixing plates (23) and the height of the clamping block (22) is greater than the height of the clamping slot (21).
6. The plastic shell of the power module according to claim 1, characterized in that: One end of the screw (24) is threadedly passed through the fixing plate (23) and is threadedly connected to the back of the housing (1); the screw (24) is a round head screw; a plurality of groups of threaded holes (25) are vertically distributed on the clamping block (22); and the spacing between two adjacent groups of threaded holes (25) is greater than the aperture of the threaded holes (25).
7. The plastic shell of the power module according to claim 3, characterized in that: A torsion spring is provided at the place where the rotating shaft (31) is rotatably connected to the housing (1) and is used to push the rotating block (32) to flip into the groove of the housing (1); the size of the rotating block (32) is smaller than the size of the groove of the housing (1).