Computer power supply convenient to assemble

Abstract

The utility model discloses a computer power supply convenient to assemble, which relates to the field of computer power supplies and comprises a bottom shell, a main circuit board, a mains supply circuit board, a secondary side filter circuit board, an insulating part, an output interface, an input interface, a power switch and a fastener. The input interface and the power switch are both arranged on the mains supply circuit board, the output interface is arranged on the secondary side filter circuit board, the fastener is detachably arranged on the inner wall of the bottom shell, the input interface and the power switch are both provided with connecting structures, the connecting structures penetrate through the bottom shell, and the ends, close to the interior of the bottom shell, of the connecting structures abut against the fastener. The end, close to the commercial power circuit board, of the connection structure of the input interface and the power switch is supported by the fastener, so that the input interface and the power switch are prevented from entering the bottom shell, the input interface and the power switch are ensured to be installed in place, and the commercial power circuit board is prevented from being holed.

Description

TECHNICAL FIELD

[0001] The utility model relates to computer power supply field especially, it relates to a computer power supply convenient to assemble. BACKGROUND

[0002] Computer power supply connects computer, provides DC power supply for host computer and screen equipment etc. Computer power supply generally includes shell, apron, main circuit board, input interface and output interface. In the existing computer power supply, the input interface and the output interface need to be fixed on the shell by screws to avoid the input interface and the output interface from retracting into the shell during wiring. However, since the main circuit board is distributed with many electronic components such as cooling fan and transformer, the main circuit board needs to be installed at one end of the internal space of the shell. Thus, there is a certain distance between the interface and the main circuit board. The existing way of welding the straight-in type circuit board to the main circuit board is used to wire the interface and the main circuit board. When the interface on the straight-in type circuit board is assembled to the shell, the end of the straight-in type circuit board is fixed by screw column and screw. Since the input interface is small in size, the straight-in type circuit board provided with the input interface is also small in area, and directly opening a hole on the circuit board will affect the strength of the circuit board itself. Moreover, the size tolerance of the screw column and the screw will affect the position of the straight-in type circuit board provided with the input interface. If the position accuracy of the straight-in type circuit board is insufficient, the input interface will be misaligned, and the wiring may not be connected in place during actual use. Since the input interface needs to be connected with 220V mains, the improper connection of the wiring poses a safety hazard of electric shock to the user, causing the problem of poor assembly.

[0003] Therefore, the computer power supply provided by the utility model can fix the input interface and the power switch respectively, ensure that the input interface is installed in place, and avoid opening a hole on the mains circuit board. SUMMARY

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a computer power supply convenient to assemble, comprising: a bottom shell, a main circuit board, a mains circuit board, a secondary side filter circuit board, an insulating piece, an output interface, an input interface, a power switch and a fastener, the center of the main circuit board is provided with a power supply main circuit, the center of the main circuit board is surrounded by a first position, a second position, a third position and a fourth position in sequence, the mains circuit board and the secondary side filter circuit board are respectively vertically inserted into the first position and the third position, the insulating piece is vertically arranged at the second position and the fourth position, the input interface and the power switch are arranged on the mains circuit board, the output interface is arranged on the secondary side filter circuit board, the input interface, the power switch, the main circuit board and the output interface are connected in sequence, the fastener is detachably arranged on the inner wall of the bottom shell, the input interface and the power switch are provided with a connecting structure, the connecting structure penetrates the bottom shell, and one end of the connecting structure close to the inside of the bottom shell abuts against the fastener.

[0005] Preferably, the fastener is a plate, and the fastener has a first hole and a second hole through which the input interface and the power switch pass, respectively. The connecting structure is interference-fitted with the first hole and the connecting structure is interference-fitted with the second hole.

[0006] Preferably, the computer power supply that is easy to assemble further includes a top cover and a back plate. The back plate is detachably disposed at one end of the bottom shell. The output interface passes through the back plate. The bottom shell is a plate structure with an L-shaped cross-section. The top cover is a plate structure with a U-shaped cross-section. Both ends of the top cover are provided with third folded edges. The upper ends of the bottom shell and the back plate are both recessed. The third folded edges are detachably disposed in the recesses.

[0007] Preferably, the fastener has a first folded edge bent at one end, and the bottom shell has a second folded edge parallel to the first folded edge inside, with the first folded edge abutting against the second folded edge.

[0008] Preferably, a screw post is provided inside the bottom shell, and a positioning hole is provided at the end of the fastener near the first folded edge, with the screw post having a clearance fit with the positioning hole; when the first folded edge abuts against the second folded edge, the screw post passes through the positioning hole. a =L b L a L is the distance between the axis of the screw post and the first folded edge. b The distance between the axis of the positioning hole and the first folded edge.

[0009] Preferably, the connecting structure is a rounded rectangular frame, which is integrally formed and sleeved on the outer wall of the input interface and the power switch.

[0010] Preferably, the main circuit board is suspended inside the bottom shell, and a plurality of first protrusions are fixedly provided on the inner wall of the bottom shell. The first protrusions are sandwiched between the inner wall of the bottom shell and the main circuit board, and the main circuit board and the first protrusions are connected by screws.

[0011] Preferably, the back plate is fixedly provided with a plurality of second protrusions, the second protrusions being sandwiched between the secondary side filter circuit board and the back plate, the secondary side filter circuit board being connected to the first protrusions by screws, and the second protrusions having threaded holes for mates with bolts. The secondary side filter circuit board and the back plate have...

[0012] Preferably, both the mains circuit board and the secondary filter circuit board are integrally formed with a plurality of protruding ends at one end, and a plurality of slots are provided at the first position and the third position. The protruding ends pass through the slots one by one, and the protruding ends are rectangular plates.

[0013] Preferably, the insulating component is a plate structure, with its lower end sandwiched between the first protrusion and the main circuit board, and its upper end sandwiched between the bottom shell and the main circuit board.

[0014] Preferably, the easily assembled computer power supply further includes a clamping component, which is a plate disposed outside the bottom shell. The clamping component and a fastener are detachably connected by screws. The fastener has a threaded hole, and the clamping component has a through hole. The clamping component has a third hole and a fourth hole for the input interface and power switch to pass through, respectively. The end of the connecting structure away from the inside of the bottom shell abuts against the clamping component. The clamping component and the fastener together clamp both sides of the connecting structure, preventing water and dust from entering through the gap between the connecting structure and the bottom shell. At the same time, the clamping component can prevent the connecting structure from protruding excessively from the bottom shell, ensuring the precise positioning of the input interface and power switch. This, in turn, ensures the perpendicularity of the mains circuit board and the main circuit board, preventing the mains circuit board from bending and causing wire breakage.

[0015] The beneficial effects of this invention are as follows: the connecting structure is integrally formed on the input interface and power switch in advance. When installing the input interface and power switch, only the fastener needs to be installed on the inner wall of the bottom shell. The end of the connecting structure on the input interface and power switch near the mains circuit board will be held in place by the fastener, preventing the input interface and power switch from entering the bottom shell and ensuring that the input interface and power switch are installed in place. By supporting the input interface and power switch with the fastener, only holes need to be drilled in the fastener, avoiding the need to drill holes in the mains circuit board. Attached Figure Description

[0016] The accompanying drawings further illustrate the present invention, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0017] Figure 1 This is a structural schematic diagram provided for an embodiment of the present utility model;

[0018] Figure 2 A top view provided for an embodiment of this utility model;

[0019] Figure 3 A cross-sectional view provided for an embodiment of the present utility model Figure 1 ;

[0020] Figure 4 A cross-sectional view provided for an embodiment of the present utility model Figure 2 .

[0021] Reference numerals: 1: Bottom shell; 2: Back plate; 3: Main circuit board; 4: Mains circuit board; 5: Secondary side filter circuit board; 6: Input interface; 7: Power switch; 8: Fastener; 9: Insulation component. Detailed Implementation

[0022] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0023] It should be noted that, in this utility model, unless otherwise stated, when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present simultaneously. "Inner" and "outer" refer to the inner and outer contours of a specific part. "Far" and "near" refer to the distance from or near to a certain component.

[0024] like Figures 1-4 As shown in the figure, an embodiment of the present invention provides a computer power supply that is easy to assemble, comprising: a bottom shell 1, a main circuit board 3, a mains circuit board 4, a secondary side filter circuit board 5, an insulating component 9, an output interface, an input interface 6, a power switch 7, and a fastener 8. The main circuit board 3 has a main power circuit at its center. The main circuit board 3 has a first position, a second position, a third position, and a fourth position arranged sequentially around its center. The mains circuit board 4 and the secondary side filter circuit board 5 are respectively vertically inserted into the first position and the third position. The insulating component 9 is vertically arranged in the second position and the fourth position. The input interface 6 and the power switch 7 are both located on the mains circuit board 4. The output interface is located on the secondary side filter circuit board 5. The input interface 6, the power switch 7, the main circuit board 3, and the output interface are connected in series. The fastener 8 is detachably mounted on the inner wall of the bottom shell 1. The input interface 6 and the power switch 7 are both provided with a connecting structure. The connecting structure penetrates the bottom shell 1, and one end of the connecting structure near the inside of the bottom shell 1 abuts against the fastener 8.

[0025] The fastener 8 is a plate body, and the fastener 8 has a first hole and a second hole through which the input interface 6 and the power switch 7 pass respectively. The connecting structure is interference-fitted with the first hole and the connecting structure is interference-fitted with the second hole.

[0026] The computer power supply, which is easy to assemble, also includes a top cover and a back plate 2. The back plate 2 is detachably mounted on one end of the bottom shell 1. The output interface passes through the back plate 2. The bottom shell 1 is a plate structure with an L-shaped cross-section. The top cover is a plate structure with a U-shaped cross-section. Both ends of the top cover are provided with a third folded edge. The upper ends of the bottom shell 1 and the back plate 2 are both recessed. The third folded edges are detachably mounted in the recesses.

[0027] The fastener 8 has a first folded edge bent at one end, and the bottom shell 1 has a second folded edge parallel to the first folded edge inside, with the first folded edge abutting against the second folded edge.

[0028] The bottom shell 1 has a screw post inside, and the fastener 8 has a positioning hole at one end near the first folded edge. The screw post is clearance-fitted with the positioning hole. When the first folded edge abuts against the second folded edge, the screw post passes through the positioning hole. a =L b L a L is the distance between the axis of the screw post and the first folded edge. b The distance between the axis of the positioning hole and the first folded edge.

[0029] The connection structure is a rounded rectangular frame, which is integrally formed and sleeved on the outer wall of the input interface 6 and the power switch 7.

[0030] The main circuit board 3 is suspended inside the bottom shell 1. A plurality of first protrusions are fixedly provided on the inner wall of the bottom shell 1. The first protrusions are sandwiched between the inner wall of the bottom shell 1 and the main circuit board 3. The main circuit board 3 and the first protrusions are connected by screws.

[0031] The back plate 2 is fixedly provided with a plurality of second protrusions, which are sandwiched between the secondary side filter circuit board 5 and the back plate 2. The secondary side filter circuit board 5 is connected to the first protrusions by screws. The second protrusions have threaded holes for mates with the bolts. The secondary side filter circuit board 5 and the back plate 2 have...

[0032] The mains circuit board 4 and the secondary filter circuit board 5 are both integrally formed with several protruding ends at one end. Several slots are opened at the first position and the third position. The protruding ends pass through the slots one by one. The protruding ends are rectangular plates.

[0033] The insulating component 9 is a plate structure. The lower end of the insulating component 9 is sandwiched between the first protrusion and the main circuit board 3, and the upper end of the insulating component 9 is sandwiched between the bottom shell 1 and the main circuit board 3.

[0034] In one embodiment, the difference from the above embodiment is that the computer power supply of this embodiment, which is easy to assemble, also includes a clamping component. The clamping component is a plate disposed outside the bottom shell 1. The clamping component and the fastener 8 are detachably connected by screws. The fastener 8 has a threaded hole, and the clamping component has a through hole. The clamping component has a third hole and a fourth hole for the input interface 6 and the power switch 7 to pass through, respectively. The end of the connecting structure away from the inside of the bottom shell 1 abuts against the clamping component. The clamping component and the fastener 8 together clamp both sides of the connecting structure, preventing water and dust from entering through the gap between the connecting structure and the bottom shell 1. At the same time, the clamping component can prevent the connecting structure from protruding excessively from the bottom shell 1, ensuring the accurate positioning of the input interface 6 and the power switch 7. This, in turn, ensures the perpendicularity of the mains circuit board 4 and the main circuit board 3, preventing the mains circuit board 4 from bending and causing wire breakage.

[0035] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these should all be considered to be within the scope of this specification.

Claims

1. A computer power supply that is easy to assemble, characterized in that: include: The system comprises a bottom shell, a main circuit board, a mains circuit board, a secondary filter circuit board, an insulating component, an output interface, an input interface, a power switch, and fasteners. The main circuit board has four positions arranged sequentially around its center: a first position, a second position, a third position, and a fourth position. The mains circuit board and the secondary filter circuit board are vertically inserted into the first and third positions, respectively. The insulating component is located at the second and fourth positions. The input interface and the power switch are both located on the mains circuit board, and the output interface is located on the secondary filter circuit board. The input interface, power switch, main circuit board, and output interface are connected in series. The fasteners are detachably mounted on the inner wall of the bottom shell. Both the input interface and the power switch have a connecting structure that penetrates the bottom shell, with one end of the connecting structure near the inside of the bottom shell abutting against the fasteners.

2. The computer power supply with easy assembly according to claim 1, characterized in that: The fastener is a plate, and the fastener has a first hole and a second hole through which the input interface and the power switch pass respectively. The connecting structure is interference-fitted with the first hole and the second hole.

3. The computer power supply with easy assembly according to claim 1, characterized in that: It also includes a top cover and a back plate. The back plate is detachably mounted on one end of the bottom shell. The output interface passes through the back plate. The bottom shell is a plate structure with an L-shaped cross-section. The top cover is a plate structure with a U-shaped cross-section. Both ends of the top cover are provided with a third folded edge. The upper ends of the bottom shell and the back plate are both recessed. The third folded edges are detachably mounted inside the recesses.

4. The computer power supply with easy assembly according to claim 2, characterized in that: The fastener has a first folded edge bent at one end, and the bottom shell has a second folded edge parallel to the first folded edge inside, with the first folded edge abutting against the second folded edge.

5. The computer power supply with easy assembly according to claim 3, characterized in that: A screw post is provided inside the bottom shell. A positioning hole is provided at the end of the fastener near the first folded edge, and the screw post is clearance-fitted into the positioning hole. When the first folded edge abuts against the second folded edge, the screw post passes through the positioning hole. a =L b L a L is the distance between the axis of the screw post and the first folded edge. b The distance between the axis of the positioning hole and the first folded edge.

6. The computer power supply with easy assembly according to claim 1, characterized in that: The connection structure is a rounded rectangular frame, which is integrally molded and fitted onto the outer wall of the input interface and the power switch.

7. The computer power supply with easy assembly according to claim 1, characterized in that: The main circuit board is suspended inside the bottom shell, and the inner wall of the bottom shell is provided with a plurality of first protrusions. The main circuit board is connected to the first protrusions by screws.

8. The computer power supply with easy assembly according to claim 7, characterized in that: Both the mains circuit board and the secondary filter circuit board are integrally formed with several protruding ends at one end. Several slots are opened at the first and third positions. The protruding ends pass through the slots one by one. The protruding ends are rectangular plates.

9. The computer power supply with easy assembly according to claim 7, characterized in that: The insulating component is a plate structure, with its lower end sandwiched between the first protrusion and the main circuit board, and its upper end sandwiched between the bottom shell and the main circuit board.

10. The computer power supply with easy assembly according to claim 1, characterized in that: It also includes a clamping component, which is a plate body disposed outside the bottom shell. The clamping component and the fastener are detachably connected by screws. The fastener has a threaded hole. The clamping component has a through hole. The clamping component has a third hole and a fourth hole for the input interface and the power switch to pass through, respectively. The end of the connecting structure away from the inside of the bottom shell abuts against the clamping component.

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