Power supply shell and power supply with same

Abstract

The utility model relates to the technical field of manufacturing of electrical element assemblies, in particular to a power supply shell and a power supply with the power supply shell, which comprise a bottom shell, the bottom shell is provided with an accommodating cavity for installing a circuit board, the circuit board is fixedly arranged in the accommodating cavity through screws, and the bottom shell comprises a bottom plate and a side plate. The connecting face of the side plate and the bottom plate forms a bottom edge, a forming structure used for installing a circuit board is formed on the bottom edge, a screw hole matched with a screw is formed in the forming structure, the forming structure comprises a transverse plate and a vertical plate, the transverse plate is connected with the side plate, the vertical plate is connected with the bottom plate, and a gap communicated with the outside is formed between the forming structure and the bottom shell. The screw hole is formed in the transverse plate, and a fillet is arranged on the connecting face of the transverse plate and the vertical plate. According to the power supply shell, the connecting part of the bottom plate and the side plate is bent to form the mounting part, so that materials are prevented from being extruded, the overall thickness of the bottom shell is not influenced, and the mounting stability of the circuit board and the bottom shell is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing electrical component assemblies, in particular to a power supply housing and a power supply having the power supply housing. Background Art

[0002] In order to reserve space for the pins of the circuit board, the circuit board needs to be lifted and fixed in the power supply casing. Most casing designs on the market install circuit boards in the following way: the bottom shell is pneumatically riveted with iron (copper) columns. This method requires a processing step for the iron (copper) column materials and has high mass production costs. If the pneumatic pressure of the riveted iron (copper) columns is unstable or the tooling is worn, the copper columns may fall off, posing a certain quality risk; or the bottom shell is formed by extrusion convex bulge forming. This convex bulge forming method will thin the shell material, resulting in the screw threads being too short when installing the circuit board, and the screw installation torque failing to reach the standard installation torque. There will be quality risks if the screws are used for a long time. Utility Model Content

[0003] In order to solve the problem of poor installation stability between the existing housing and the circuit board, the utility model provides a power supply housing and a power supply having the power supply housing, wherein a mounting portion is formed by bending at the connection between the bottom plate and the side plate, so as to achieve stable installation of the circuit board without affecting the original thickness of the housing.

[0004] The utility model provides a power supply housing, including a bottom housing, the bottom housing is provided with a housing cavity for installing a circuit board, the circuit board is fixedly arranged in the housing cavity by screws, the bottom housing includes a bottom plate and a side plate, the connection surface of the side plate and the bottom plate forms a bottom edge, a forming structure for installing the circuit board is formed on the bottom edge, and a screw hole matched with the screw is provided on the forming structure. The forming structure is formed by bending in place, no extrusion material is provided, and the original thickness of the housing is not affected.

[0005] Furthermore, the forming structure is L-shaped, and the forming structure is bent inwardly to be formed in the bottom shell. The contact area between the L-shaped structure and the mounting plate is large, and the mounting stability is good.

[0006] Furthermore, the molding structure includes a horizontal plate and a vertical plate, the horizontal plate is connected to the side plate, the vertical plate is connected to the bottom plate, a gap connected to the outside is formed between the molding structure and the bottom shell, and a screw hole is provided on the horizontal plate. The gap part facilitates heat dissipation of the shell to prevent the temperature inside the shell from being too high.

[0007] Furthermore, the horizontal plate is parallel to the bottom plate, and the connecting surface of the horizontal plate and the vertical plate is provided with a rounded corner, so as to ensure the support stability and avoid damaging the circuit board.

[0008] Furthermore, the bottom shell is provided with pre-grooves, which are respectively arranged on both sides of the forming structure and extend to both ends of the forming structure. The setting of the pre-grooves facilitates the forming structure to be better formed inwardly without causing deformation of other parts of the shell.

[0009] Furthermore, the screw hole is a stretched hole stretched toward one side of the bottom plate, and a protrusion is formed on the bottom surface of the horizontal plate. The screw hole extends into the protrusion to ensure the threading length of the screw.

[0010] Furthermore, the molding structure and the bottom shell are an integrated structure to ensure overall strength.

[0011] Furthermore, the bottom shell is made of pure aluminum or aluminum alloy. The aluminum bottom shell adopts this structure to reduce costs to a large extent.

[0012] A power supply comprises a power supply shell and a circuit board arranged in the power supply shell. The circuit board has a lower surface and an upper surface with components installed. The upper surface of the circuit board is arranged upward in the power supply shell.

[0013] Furthermore, it also includes a pressing plate, which is arranged above the circuit board and against the components, and screws pass through the pressing plate and the circuit board in sequence and are screwed into the screw holes of the forming structure. The pressing plate is fixed to the bottom shell by screws, eliminating the need for nuts for locking.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model provides a power supply housing and a power supply having the power supply housing, wherein a mounting portion is formed by bending at the connection between a bottom plate and a side plate, thereby saving materials and avoiding material extrusion and deformation, without affecting the overall thickness of the bottom shell, and effectively reducing costs;

[0016] (2) The utility model provides a power supply housing and a power supply having the power supply housing. Through the cooperation of the L-shaped structure and the stretching hole, not only the supporting area of ​​the circuit board is increased to a certain extent, but also the threading length of the screw is increased, thereby ensuring the installation stability of the circuit board and the bottom shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a traditional pneumatic riveted iron (copper) column;

[0019] Figure 2 It is a schematic diagram of traditional extrusion convex hull forming;

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the power supply housing;

[0021] Figure 4 It is a schematic diagram of the planar structure of the power supply housing;

[0022] Figure 5 It is a three-dimensional structural diagram of the power supply;

[0023] Figure 6 It is a schematic diagram of the planar structure of the power supply;

[0024] Figure 7 This is a schematic diagram of the installation of a traditional pressure plate;

[0025] Figure 8 yes Figure 7 Exploded diagram of

[0026] Fig. 9 This is the installation diagram of the pressure plate;

[0027] In the figure, 1. bottom shell, 11. bottom plate, 12. side plate, 13. bottom edge, 14. accommodating cavity, 2. circuit board, 21. upper surface, 22. lower surface, 3. screw, 4. molding structure, 41. screw hole, 411. protrusion, 42. horizontal plate, 43. vertical plate, 44. rounded corner, 5. gap, 51. pre-slotted, 6. pressure plate, 7. rivet column, 8. extruded convex bump, 9. nut. DETAILED DESCRIPTION

[0028] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0029] A power supply housing includes a bottom housing 1, the bottom housing 1 is provided with a receiving cavity 14 for installing a circuit board 2, and the circuit board 2 is fixed in the receiving cavity 14 by screws 3. Figure 1-2 As shown, it is a conventional connection structure between the circuit board 2 and the bottom shell 1.

[0030] Specifically, the bottom shell 1 includes a bottom plate 11 and a side plate 12, and the side plate 12 and the bottom plate 11 are connected to form a bottom edge 13. In order to ensure the installation stability of the circuit board 2 and the bottom shell 1, the structure of the bottom shell 1 is improved, such as Figure 3 and 4As shown, the difference from the prior art is that a forming structure 4 for installing the circuit board 2 is formed on the bottom edge 13, and a screw hole 41 adapted to the screw 3 is provided on the forming structure 4, and the forming structure 4 and the bottom shell 1 are an integrated structure. The bottom shell 1 is a thin plate, and a forming structure 4 is formed on the bottom edge 13 of the bottom shell 1 by sheet metal processing for installing the circuit board 2. The forming structure 4 is formed by bending the bottom plate 11 and the side plate 12, which will not make the shell material thinner, and there is no need to install the rivet column 7 separately. The circuit board 2 can be locked on the forming structure 4 by the screw 3, ensuring the thread length of the screw 3, without slipping, and meeting the torque requirement of the screw 3. Among them, the thickness of the bottom shell 1 is generally not more than 2mm. If it is greater than 2mm, it can be formed by extruding aluminum plate and the like. In the case of not more than 2mm, the torque margin of the extruded aluminum plate is insufficient, and the batch reliability is low. In order to ensure the torque requirement, the above-mentioned forming structure 4 can only be used.

[0031] The forming structure 4 is L-shaped, and the forming structure 4 is bent inwardly to form a protrusion in the bottom shell 1. The inward bending forms a bulge, so that the circuit board 2 can be lifted and fixed, and a space is reserved for the pins on the lower surface 22 of the circuit board 2. The L-shaped right-angle structure can increase the support strength. After the circuit board 2 is placed on the forming structure 4, it is necessary to tighten the screws 3 with a torque gun to fix the circuit board 2. The L-shaped structure can provide more stable support, ensuring that it will not fail or deform under a torque of 6-8 kg.

[0032] Specifically, the molding structure 4 includes a horizontal plate 42 and a vertical plate 43, the horizontal plate 42 is connected to the side plate 12, the vertical plate 43 is connected to the bottom plate 11, and a gap 5 connected to the outside is formed between the molding structure 4 and the bottom shell 1, and the screw hole 41 is opened on the horizontal plate 42. The horizontal plate 42 is parallel to the bottom plate 11, so that the circuit board 2 is fully in contact with the horizontal plate 42 for support, which increases the support area to a certain extent, thereby increasing the stability. The gap 5 can be used for heat dissipation to prevent the internal temperature of the bottom shell 1 from being too high.

[0033] In order to protect the lower surface 22 of the circuit board 2 , rounded corners 44 are provided on the connecting surfaces of the horizontal plate 42 and the vertical plate 43 to prevent the molding structure 4 from causing damage to the circuit board 2 .

[0034] In order to facilitate the forming of the forming structure 4, the bottom shell 1 is provided with pre-grooves 51, which are respectively arranged on both sides of the forming structure 4 and extend to both ends of the forming structure 4. After the grooves are formed, the middle part of the two pre-grooves 51 only needs to be pushed into the bottom shell 1 to complete the forming. The bottom shell 1 is generally made of pure aluminum or aluminum alloy. The use of this forming method can reduce the production cost to a large extent.

[0035] In order to ensure that the threading length of the screw 3 meets the requirements, the screw hole 41 is a stretching hole stretched toward one side of the horizontal plate 42, and a protrusion 411 is formed on the bottom surface of the horizontal plate 42. When the M3 screw 3 is used for fixing, the length of the screw hole 41 is set to be not less than 1.5 times the thickness of the horizontal plate 42, and the length and width of the horizontal plate 42 are not less than 6mm, which can ensure the stability of the connection.

[0036] like Figure 5 and 6 As shown, a power supply includes the above-mentioned power supply housing and a circuit board 2 arranged in the power supply housing. The circuit board 2 has a lower surface 22 and an upper surface 21 with components installed. The upper surface 21 of the circuit board 2 is arranged upward in the power supply housing.

[0037] In order to further fix the circuit board 2, a pressing plate 6 is also included. The pressing plate 6 is arranged above the circuit board 2 and against the components, such as Figure 7 and 8 As shown, squeezing the convex bump 8 will make the bottom plate 11 thinner. When the pressing plate 6 is fixed with the screw 3, the screw 3 needs to be locked and fixed with the nut 9 after passing through the convex bump, which is troublesome. Fig. 9 As shown, under the premise that the molding structure 4 does not change the original thickness of the shell, the stretching hole opened on the molding structure 4 can ensure the threading length of the screw 3. The screw 3 passes through the pressure plate 6 and the circuit board 2 in sequence and is screwed into the screw hole 41 of the molding structure 4, so that the pressure plate 6 can be effectively fixed.

[0038] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A power supply housing, comprising a bottom housing (1), the bottom housing (1) comprising a bottom plate (11) and a side plate (12), the bottom plate (11) and the side plate (12) being connected to form a bottom edge (13), characterized in that: A molding structure (4) for mounting a circuit board (2) is formed on the bottom edge (13); The forming structure (4) is formed by bending the bottom plate (11) and the side plate (12).

2. A power supply housing according to claim 1, characterized in that: The bottom shell (1) is provided with pre-grooves (51), and the pre-grooves (51) are symmetrically arranged on both sides of the molding structure (4) and extend to both ends of the molding structure (4).

3. A power supply housing according to claim 1, characterized in that: The forming structure (4) is L-shaped, and the forming structure (4) is protruding inwardly inside the bottom shell (1).

4. A power supply housing according to claim 3, characterized in that: The molding structure (4) comprises a transverse plate (42) and a vertical plate (43), wherein the transverse plate (42) is connected to the side plate (12), and the vertical plate (43) is connected to the bottom plate (11).

5. A power supply housing according to claim 4, characterized in that: The transverse plate (42) is parallel to the bottom plate (11), and a rounded corner (44) is provided on the connecting surface of the transverse plate (42) and the vertical plate (43).

6. A power supply housing according to claim 4, characterized in that: The transverse plate (42) is provided with a screw hole (41), the screw hole (41) being a stretching hole formed toward one side of the bottom plate (11), and forming a protrusion (411) on the bottom surface of the transverse plate (42).

7. The power supply housing according to claim 1, characterized in that: The molding structure (4) and the bottom shell (1) are an integrated structure.

8. The power supply housing according to claim 1, characterized in that: The bottom shell (1) is made of pure aluminum or aluminum alloy, and the thickness of the bottom shell (1) is no more than 2 mm.

9. A power supply, characterized in that: It comprises a power supply housing as claimed in any one of claims 1 to 8 and a circuit board (2) arranged in the power supply housing, wherein the circuit board (2) is fixedly connected to the forming structure (4) by means of screws (3), and the circuit board (2) has a lower surface (22) and an upper surface (21) on which components are mounted.

10. A power supply according to claim 9, characterized in that: It also comprises a pressing plate (6), the pressing plate (6) being arranged above the circuit board (2) and abutting against the components, the screws (3) passing through the pressing plate (6) and the circuit board (2) in sequence and being screwed into the screw holes (41) of the forming structure (4).

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