Fixing structure and electronic equipment

Abstract

The utility model provides a fixing structure and an electronic device, the fixing structure comprises a cabinet, a fixing plate and a plurality of SIC modules, the cabinet is provided with a plurality of mounting grooves and a plurality of fixing holes, and two adjacent fixing holes are respectively located at two sides of the mounting grooves; the fixing plate is provided with a plurality of via holes corresponding to the fixing holes; the plurality of SIC modules are respectively positioned in the plurality of mounting grooves; and during assembly, one end of the first locking piece penetrates through the via hole and is locked with the fixing hole, so that the fixing plate is in compression joint with the SIC module. The SIC modules are fixed on the case through the fixing plate, the first locking piece locks the fixing plate and the case, so that the fixing plate crimps the SIC modules on the case, the fixing structure is simple, a tool clamp does not need to be adopted, the cost is reduced, and the production efficiency is improved. The assembling time of the SIC module and the case is greatly shortened, and the purposes of reducing cost and increasing efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic devices, in particular to a fixing structure and an electronic device. Background Art

[0002] With the rapid development of new energy vehicles, the market has higher and higher requirements for the overall size of motor electronic devices. As the electronic devices become lighter and smaller in volume, the corresponding volume of the SIC modules on the market is also getting smaller and smaller. For how to assemble these SIC modules and meet the airtight requirements, this poses high requirements for the fixing scheme of the modules; at present, for the fixing of SIC modules, the more widely used fixing scheme is to design a small fixing block, apply pressure to the fixing block by using a tooling and lock the fixing block with bolts. The disadvantage is that additional tooling is required to assist in the assembly, which will increase certain costs and the assembly time is relatively long. Summary of the Utility Model

[0003] An embodiment of the utility model provides a fixing structure and an electronic device to reduce the use of tooling for assembling SIC modules, reduce the assembly time, and achieve the purpose of cost reduction and efficiency improvement.

[0004] The utility model provides a fixing structure, which includes:

[0005] A chassis, provided with a plurality of installation grooves and a plurality of fixing holes, and two adjacent fixing holes are respectively located on both sides of the installation groove;

[0006] A fixing plate, provided with a plurality of through holes corresponding to the fixing holes;

[0007] A plurality of SIC modules, respectively located in a plurality of the installation grooves;

[0008] During assembly, one end of a first locking member passes through the through hole and is locked with the fixing hole so that the fixing plate presses against the SIC module.

[0009] In the fixing structure provided by the utility model, the fixing plate includes a plurality of pressing parts, the pressing parts protrude towards the chassis, and the through holes penetrate through the pressing parts, and both sides of the end face of the pressing part are respectively abutted against one side of two adjacent SIC modules.

[0010] In the fixing structure provided by the utility model, steps are further provided at both ends of the fixing plate, the steps are arranged on the end face of the pressing part and are located on one side of the through hole close to the edge of the fixing plate.

[0011] In the fixing structure provided by the utility model, the fixing plate is further provided with a positioning pin, the positioning pin extends from one side of the fixing plate towards one side of the chassis, and the positioning pin is used for positioning and connecting with the positioning hole of the chassis.

[0012] In the fixing structure provided by the present utility model, the fixing plate is provided with two rows of the through holes, and each row of the through holes includes a plurality of the through holes arranged at intervals along the length direction of the fixing plate.

[0013] In the fixing structure provided by the present utility model, a threaded hole is further provided on a side of the fixing plate facing away from the chassis, and the fixing structure further includes a circuit board, and the circuit board is provided with mounting holes corresponding to the threaded holes;

[0014] During assembly, one end of the second locking member passes through the mounting hole and is locked and fixed with the threaded hole.

[0015] In the fixing structure provided by the present utility model, a plurality of the mounting holes and the threaded holes are provided, and the plurality of the threaded holes are arranged at intervals near the edge of the fixing plate along the circumferential direction of the fixing plate, and the plurality of the mounting holes are respectively arranged on the circuit board corresponding to the plurality of the threaded holes.

[0016] In the fixing structure provided by the present utility model, a positioning post is further provided on a side of the fixing plate facing the circuit board, the positioning post extends towards the circuit board, the circuit board is further provided with a through hole, the through hole is correspondingly arranged with the positioning post, and the positioning post is used for positioning and connecting with the through hole.

[0017] In the fixing structure provided by the present utility model, two positioning posts are provided, the two positioning posts are respectively located on two sides of the fixing plate, and the positioning posts are arranged adjacent to the threaded holes.

[0018] The present invention further provides an electronic device, which includes the fixing structure described in any one of the above.

[0019] The present utility model provides a fixing structure and an electronic device. The fixing structure includes a chassis, a fixing plate and a plurality of SIC modules. The chassis is provided with a plurality of mounting grooves and a plurality of fixing holes, and two adjacent fixing holes are respectively located on two sides of the mounting groove; the fixing plate is provided with a plurality of through holes corresponding to the fixing holes; the plurality of SIC modules are respectively located in the plurality of mounting grooves; during assembly, one end of the first locking member passes through the through hole and is locked with the fixing hole so that the fixing plate presses against the SIC module. In this application, by providing the fixing plate, the plurality of SIC modules are fixed on the chassis, and the first locking member locks the fixing plate and the chassis, so that the fixing plate presses the SIC module on the chassis. The fixing structure is simple and does not require a tooling fixture, greatly shortening the assembly time of the SIC module and the chassis, achieving the purpose of cost reduction and efficiency improvement. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other accompanying drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a cross-sectional view of the fixing structure in the embodiment of the present utility model;

[0022] Figure 2 is Figure 1 an enlarged view of part A in;

[0023] Figure 3 It is a bottom view of the fixing plate in the embodiment of the present utility model;

[0024] Figure 4 It is a front view of the fixing plate in the embodiment of the present utility model;

[0025] Figure 5 It is a top view of the fixing plate in the embodiment of the present utility model;

[0026] The reference numerals in the figure are as follows:

[0027] 10, chassis; 11, installation groove; 12, fixing hole; 20, fixing plate; 21, through hole; 22, crimping part; 23, step; 24, positioning pin; 25, threaded hole; 26, positioning post; 30, SIC module; 41, first locking member; 42, second locking member; 50, circuit board; 51, installation hole; 60, sealing ring. Specific embodiments

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Now, with reference to the accompanying drawings, the preferred embodiments of the present utility model will be described in detail.

[0029] Referring to Figures 1 to 5 as shown, it shows an embodiment of the fixing structure and the electronic device of the present utility model. The fixing structure includes a chassis 10, a fixing plate 20 and a plurality of SIC modules 30. The chassis 10 is provided with a plurality of installation grooves 11 and a plurality of fixing holes 12. Two adjacent fixing holes 12 are respectively located on both sides of the installation groove 11; the fixing plate 20 is provided with a plurality of through holes 21 corresponding to the fixing holes 12; a plurality of SIC modules 30 are respectively located in a plurality of installation grooves 11; during assembly, one end of the first locking member 41 passes through the through hole 21 and is locked with the fixing hole 12 so that the fixing plate 20 crimps the SIC module 30.

[0030] Specifically, the fixing structure includes a chassis 10, a fixing plate 20, and SIC modules 30. The fixing structure is used to fix a plurality of SIC modules 30 on the chassis 10. The chassis 10 is provided with a plurality of mounting grooves 11 and a plurality of fixing holes 12. The mounting grooves 11 are used for installing the SIC modules 30, and the fixing holes 12 are used for locking and fixing with a first locking member 41 to be fixedly connected to the fixing plate 20. Two adjacent fixing holes 12 are respectively located on both sides of the mounting groove 11. The fixing plate 20 is provided with a plurality of through holes 21, and the plurality of through holes 21 are respectively arranged corresponding to the plurality of fixing holes 12. When assembling the SIC module 30, place the SIC module 30 in the mounting groove 11, then place the fixing plate 20 on the chassis 10, and the through holes 21 are arranged corresponding to the fixing holes 12. Pass one end of the first locking member 41 through the through hole 21 and lock and fix it with the fixing hole 12, so that the fixing plate 20 presses the SIC module 30 on the chassis 10, and both sides of the SIC module 30 are locked and fixed by the first locking member 41.

[0031] In this application, by setting the fixing plate 20 to fix a plurality of SIC modules 30 on the chassis 10, the first locking member 41 locks the fixing plate 20 and the chassis 10, thereby pressing the SIC module 30 on the chassis 10. The fixing structure is simple and does not require the use of tooling jigs, greatly shortening the assembly time and achieving the purpose of cost reduction and efficiency improvement.

[0032] In an embodiment, refer to Figures 1 to 4As shown, the fixing plate 20 includes a plurality of crimping portions 22. The crimping portions 22 protrude towards the chassis 10, and the through hole 21 penetrates through the crimping portions 22. Both sides of the end face of the crimping portion 22 are respectively abutted against one side of two adjacent SIC modules 30. Specifically, the fixing plate 20 includes a plurality of crimping portions 22 which are arranged at intervals. The crimping portions 22 protrude from one side of the fixing plate 20 towards the chassis 10. The through hole 21 penetrates through both ends of the crimping portion 22, that is, from the side of the crimping portion 22 far from the chassis 10 to the side close to the chassis 10. And the through hole 21 is located in the middle of the crimping portion 22. The end face of the crimping portion 22 is respectively abutted against one side of two adjacent SIC modules 30 on both sides of the through hole 21, that is, both sides of the crimping portion 22 are respectively abutted against one side of two adjacent SIC modules 30. The first locking member 41 passes through the through hole 21, and the end face of the crimping portion 22 crimps two adjacent SIC modules 30. The plurality of crimping portions 22 cooperate with each other to fix the plurality of SIC modules 30 on the chassis 10. The structure of the fixing plate 20 is simple, and the fixing plate 20 has high stability in fixing the SIC modules 30.

[0033] In a specific embodiment, referring to Figures 1 to 2 、 Figure 4 As shown, steps 23 are further provided at both ends of the fixing plate 20. The steps 23 are provided on the end face of the crimping portion 22 and are located on the side of the through hole 21 close to the edge of the fixing plate 20. Specifically, two steps 23 are further provided on the fixing plate 20. The two steps 23 are located at both ends of the fixing plate 20, that is, two steps 23 are respectively provided at the left and right ends of the fixing plate 20. The steps 23 are provided on the end face of the crimping portion 22. The end face of the crimping portion 22 refers to the side face of the crimping portion 22 close to the chassis 10. The through hole 21 penetrates through the crimping portion 22, and the step 23 is located on the side of the through hole 21 close to the edge of the fixing plate 20. When one end of the first locking member 41 passes through the through hole 21 and locks with the fixing hole 12, the fixing plate 20 is compressed towards the chassis 10, thereby squeezing the step 23. The step 23 is used to ensure the compression amount of the fixing plate 20 and improve the structural stability of the fixing plate 20 and the fixing property between the fixing plate 20 and the chassis 10.

[0034] In an embodiment, referring to Figure 3As shown, the fixed plate 20 is further provided with a positioning pin 24. The positioning pin 24 extends from one side of the fixed plate 20 towards one side of the chassis 10. The positioning pin 24 is used for positioning connection with the positioning hole of the chassis 10. Specifically, the fixed plate 20 is further provided with a positioning pin 24. The positioning pin 24 extends from the side of the fixed plate 20 facing the chassis 10 towards one side of the chassis 10. The chassis 10 is further provided with a positioning hole, and the positioning pin 24 is arranged corresponding to the positioning hole. During assembly, first place the SIC module 30 in the installation groove 11, then align the positioning pin 24 of the fixed plate 20 with the positioning hole of the chassis 10 so that the positioning pin 24 is in positioning connection with the positioning hole, thereby realizing the preliminary fixation of the fixed plate 20 and the chassis 10. Then, pass the first locking member 41 through the through hole 21 of the fixed plate 20 and lock it with the fixing hole 12 of the chassis 10, thereby fixing the fixed plate 20 on the chassis 10. At this time, the fixed plate 20 presses the SIC module 30 on the chassis 10.

[0035] In this embodiment, through the positioning connection between the positioning pin 24 and the positioning hole, it is convenient to position the fixed plate 20 on the chassis 10, thereby improving the assembly efficiency.

[0036] More specifically, the fixed plate 20 is provided with two positioning pins 24. The two positioning pins 24 are respectively arranged at both ends of the fixed plate 20 and are arranged close to the edge of the fixed plate 20, so as to avoid the fixed plate 20 pressing the SIC module 30.

[0037] In a specific embodiment, refer to Figure 3As shown, the fixing plate 20 is provided with two rows of the through holes 21, and each row of the through holes 21 includes a plurality of the through holes 21 arranged at intervals along the length direction of the fixing plate 20. Specifically, the fixing plate 20 is provided with two rows of the through holes 21. Since the fixing plate 20 is to fix a plurality of the SIC modules 30, two of the first locking members 41 are required to lock and fix both sides of each SIC module 30, and the plurality of SIC modules 30 are installed on the chassis 10 in parallel at intervals. Therefore, each row of the through holes 21 includes a plurality of the through holes 21 arranged at intervals along the length direction of the fixing plate 20, so that the first locking member 41 passes through the through holes 21 to lock the fixing plate 20 and the chassis 10, thereby crimping the SIC module 30 on the chassis 10; the fixing plate 20 is provided with two rows of the through holes 21, and the two rows of the through holes 21 are respectively arranged oppositely on both sides of the fixing plate 20, that is, the two rows of the through holes 21 are respectively arranged at the upper and lower edges of one side surface of the fixing plate 20 close to the chassis 10, so as to fix the upper and lower sides of the SIC module 30, increasing the fixing area between the fixing plate 20 and the chassis 10 to improve the stability of the fixing of the SIC module 30.

[0038] In one embodiment, referring to Figures 4 to 5 As shown, a threaded hole 25 is further provided on the side of the fixing plate 20 facing away from the chassis 10. The fixing structure further includes a circuit board 50, and the circuit board 50 is provided with a mounting hole 51 corresponding to the threaded hole 25; during assembly, one end of a second locking member 42 passes through the mounting hole 51 and is locked and fixed with the threaded hole 25. Specifically, the fixing structure further includes a circuit board 50, and the functions of the circuit board 50 are diverse. In this embodiment, the circuit board 50 is mainly used to drive the SIC module 30 to work. The circuit board 50 is fixed on the side of the fixing plate 20 facing away from the chassis 10. The circuit board 50 is provided with a mounting hole 51 for fixedly connecting with the fixing plate 20; a threaded hole 25 is further provided on the side of the fixing plate 20 facing away from the chassis 10, and the threaded hole 25 is arranged corresponding to the mounting hole 51. When assembling the circuit board 50 to the fixing plate 20, one end of the second locking member 42 passes through the mounting hole 51 and is locked and fixed with the threaded hole 25, thereby realizing the fixing of the circuit board 50 on the fixing plate 20. The fixing method is simple and the assembly is convenient.

[0039] In a specific embodiment, referring to Figures 4 to 5As shown, a plurality of the mounting holes 51 and the threaded holes 25 are provided. The plurality of threaded holes 25 are arranged at intervals along the circumference of the fixing plate 20 near the edge of the fixing plate 20. The plurality of mounting holes 51 are respectively arranged on the circuit board 50 corresponding to the plurality of threaded holes 25. Specifically, the fixing plate 20 is provided with a plurality of the threaded holes 25, the plurality of threaded holes 25 are arranged at intervals along the circumference of the fixing plate 20, and the plurality of threaded holes 25 are arranged near the edge of the fixing plate 20; the circuit board 50 is provided with a plurality of the mounting holes 51, and the plurality of mounting holes 51 are arranged at the positions corresponding to the plurality of threaded holes 25 on the driving part. Thus, one end of the plurality of second locking members 42 passes through the mounting holes 51 and is locked and fixed with the threaded holes 25, so as to improve the fixing stability between the driving part and the fixing plate 20 and avoid the influence of the second locking members 42 on the SIC module 30.

[0040] In one embodiment, as shown in Figures 4 to 5 As shown, a positioning post 26 is further provided on one side of the fixing plate 20 facing the circuit board 50. The positioning post 26 extends towards the circuit board 50. The circuit board 50 is further provided with a through hole 52, and the through hole 52 is arranged corresponding to the positioning post 26. The positioning post 26 is used for positioning connection with the through hole 52. Specifically, a positioning post 26 is further provided on the side of the fixing plate 20 facing away from the chassis 10, that is, the positioning post 26 is located on the side of the fixing plate 20 facing the circuit board 50. The positioning post 26 protrudes and extends from one side surface of the fixing plate 20 towards the circuit board 50. The positioning post 26 is used for positioning the fixing plate 20 and the circuit board 50; the circuit board 50 is further provided with a through hole 52, and the through hole 52 is arranged corresponding to the positioning post 26. Thus, when assembling the fixing plate 20 and the circuit board 50, the positioning post 26 is inserted into the through hole 52 to enable positioning connection between the fixing plate 20 and the circuit board 50, and then the second locking member 42 is passed through the mounting hole 51 and the threaded hole 25 and locked and fixed to fix the circuit board 50 on the fixing plate 20. In this embodiment, through the positioning connection between the positioning post 26 and the through hole 52, it is convenient to position the circuit board 50 on the fixing plate 20 and improve the assembly efficiency.

[0041] More specifically, there are two positioning posts 26, which are respectively located on both sides of the fixing plate 20, and the positioning posts 26 are arranged adjacent to the threaded holes 25. Specifically, the two positioning posts 26 are respectively located on both sides of the fixing plate 20. In this embodiment, the two positioning posts 26 are respectively arranged at the lower left and upper right, so as to better position with the entire circuit board 50 and prevent the circuit board 50 from shifting. At the same time, the positioning posts 26 are arranged adjacent to the threaded holes 25, that is, the positioning posts 26 are arranged close to the edge of the fixing plate 20, improving the structural stability of the fixing plate 20.

[0042] In one embodiment, the fixing plate 20 is made of a metal material. Specifically, the fixing plate 20 can be made of a metal material or a plastic material, which is not limited herein. In this embodiment, the fixing plate 20 is made of a metal material, so that the deformation of the fixing plate 20 is smaller and the strength is higher, which can support the circuit board 50, reduce the use of additional support part materials, and lower the production cost. Moreover, compared with the fixing plate 20 made of plastic material, the fixing plate 20 made of metal material has a smaller size.

[0043] In a specific embodiment, referring to Figures 1 to 2 As shown, the fixing structure further includes a sealing ring 60. The sealing ring 60 is installed in the installation groove 11 along the circumferential direction of the installation groove 11 and is attached to the edge of the installation groove 11 to isolate the SIC module 30 and the chassis 10. When the fixing plate 20 presses the SIC module 30 in the installation groove 11, a sealing cavity is formed between the sealing ring 60, the chassis 10 and the SIC module 30, thereby preventing the coolant from flowing into the chassis 10 and causing the chassis 10 to malfunction.

[0044] This embodiment also provides an electronic device (not shown in the figure). The electronic device includes a fixing structure, and the fixing structure can adopt any one of the fixing structures provided by the present invention. Since the specific structure and working principle of the fixing structure have been introduced in detail in the previous description, for the sake of simplicity of the description, it will not be repeated here.

[0045] In the electronic device of this embodiment, due to the adoption of the fixing structure provided by the present invention, there is no need to use redundant tooling or materials to fix the SIC module 30 and the circuit board 50, improving the assembly efficiency and reducing the production cost.

[0046] More specifically, this embodiment is a dual-motor electronic device with six of the SIC modules 30 inside. If the small pressing block solution is adopted for fixation, frequent use of tooling fixtures is required for auxiliary assembly, and the assembly time is greatly extended. The solution of the present utility model is to make seven small fixing blocks into an integral fixing plate 20: during assembly, first place six of the SIC modules 30 on the chassis 10, then align the positioning pins 24 on the fixing plate 20 with the positioning holes on the chassis 10, press the fixing plate 20 onto the SIC modules 30, use the first locking member 41 for pre-locking, and then tighten the first locking member 41 to complete the assembly of the fixing plate 20 and the circuit board 50. This solution not only eliminates the tooling fixtures but also greatly shortens the assembly time.

[0047] As described above, the above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A fixing structure, characterized in that, Comprising: A chassis, provided with a plurality of mounting grooves and a plurality of fixing holes, and two adjacent ones of the fixing holes are respectively located on both sides of the mounting groove; A fixing plate, provided with a plurality of through holes corresponding to the fixing holes; A plurality of SIC modules, respectively located in a plurality of the mounting grooves; During assembly, one end of a first locking member passes through the through hole and is locked with the fixing hole so that the fixing plate presses against the SIC module.

2. The fixing structure according to claim 1, characterized in that, The fixing plate includes a plurality of pressing portions, the pressing portions protrude towards the chassis, and the through holes penetrate through the pressing portions, and both sides of the end face of the pressing portion are respectively abutted against one side of two adjacent SIC modules.

3. The fixing structure according to claim 2, wherein Steps are further provided at both ends of the fixing plate, the steps are arranged on the end face of the pressing portion and are located on one side of the through hole close to the edge of the fixing plate.

4. The fixing structure according to claim 1, characterized in that, The fixing plate is further provided with a positioning pin, the positioning pin extends from one side of the fixing plate towards one side of the chassis, and the positioning pin is used for positioning and connecting with a positioning hole of the chassis.

5. The fixing structure according to claim 1, wherein The fixing plate is provided with two rows of the through holes, and each row of the through holes includes a plurality of the through holes arranged at intervals along the length direction of the fixing plate.

6. The fixing structure according to claim 1, characterized in that, A threaded hole is further provided on one side of the fixing plate facing away from the chassis, and the fixing structure further includes a circuit board, and the circuit board is provided with mounting holes corresponding to the threaded holes; During assembly, one end of a second locking member passes through the mounting hole and is locked and fixed with the threaded hole.

7. The fixing structure according to claim 6, characterized in that, Both the mounting holes and the threaded holes are provided with a plurality of them, and the plurality of threaded holes are arranged at intervals along the circumferential direction of the fixing plate near the edge of the fixing plate, and the plurality of mounting holes are respectively arranged on the circuit board corresponding to the plurality of threaded holes.

8. The fixing structure according to claim 6, characterized in that, A positioning post is further provided on one side of the fixing plate facing the circuit board, the positioning post extends towards the circuit board, the circuit board is further provided with a through hole, the through hole corresponds to the positioning post, and the positioning post is used for positioning and connecting with the through hole.

9. The fixing structure according to claim 8, wherein There are two positioning posts, the two positioning posts are respectively located on both sides of the fixing plate, and the positioning posts are adjacent to the threaded holes.

10. An electronic device, characterized in that, Comprising: A fixing structure, the fixing structure is the fixing structure according to any one of claims 1-9.

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