Modularized power supply without pulling ground wire and computer case

Abstract

The utility model discloses a ground wire pulling-free modularized power supply and a computer case, which comprise a rear side plate, the lower end of the rear side plate is connected with a bottom plate which extends forwards, the rear side plate is provided with a first mounting through hole and a second mounting through hole which are arranged at an interval up and down, and the front side surface of the rear side plate is connected with an internal thread column which extends forwards; a threaded connector is formed in the front end of the internal threaded column; the PCB is transversely arranged at the top of the bottom plate; the AC module comprises a male seat, an I / O switch, an AC board and a grounding screw; the male seat and the I / O switch are fixed on the AC board, pins of the male seat and the I / O switch are electrically connected with the AC board respectively, a locking through hole extending front and back is formed in the AC board, and a ground wire pin of the male seat is connected to the position where the locking through hole is located through a circuit on the AC board; the AC module is installed on the rear side plate from front to back, the male seat and the I / O switch are arranged at the rear ends of the corresponding first installation through hole and the second installation through hole in an exposed mode, the locking through hole directly faces the front side of the threaded connection port, and pulling-free ground wire is achieved.

Description

Technical Field

[0001] This utility model relates to the field of computer power supply technology, and in particular to a modular power supply and computer chassis that does not require grounding wires. Background Technology

[0002] In the early days, computer power supplies typically had multiple electronic wires installed inside. These wires connected to connectors, I / O switches, and PCB boards via electrical signals. During assembly, both ends of each wire required manual soldering, which inevitably consumed a significant amount of time. Furthermore, the intertwined and complex nature of these wires made power supply maintenance more difficult. Additionally, the poor power-carrying capacity of the multiple wires reduced the power supply's efficiency.

[0003] Later, a modular power supply structure was developed, including a housing, a male connector, I / O switches, and a PCB board. The PCB board is mounted on the bottom plate of the housing, and the male connector and I / O switches are mounted on the side plates of the housing. It also includes an AC board, which is fixedly and electrically connected to the male connector and I / O switches, and is connected to the PCB board. This modular power supply structure utilizes modular assembly and production, replacing traditional electronic wiring with an AC board. No internal electronic wiring is required, and the male connector, I / O switches, and AC board, as well as the AC board and PCB board, are electrically connected via a reflow oven process. This structure still has some shortcomings: 1. A wire needs to be soldered to the ground pin of the male connector, with one end of the wire soldered and fixed to the inner wall of the housing. This involves pulling a ground wire to the ground pin of the male connector, which makes the wire soldering process cumbersome. 2. Both the male connector and the I / O switch are mounted on this side cover, which is then mounted on the side plate of the housing. It relies on the side cover to assemble the power supply components into a module, and then installs this module onto the side plate of the housing. A mounting window needs to be reserved on the side plate, which makes the structure more complex, increases the difficulty of processing, and makes installation more troublesome. Furthermore, the multi-layer board design leads to increased cumulative tolerances during installation, making it difficult to strictly control the positional accuracy of the male connector and I / O switches relative to the outer surface of the side plate of the housing after installation. This makes it difficult to meet higher quality requirements, resulting in a less than ideal production yield and impacting cost control.

[0004] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology and its main purpose is to provide a modular power supply and computer chassis that eliminates the need for grounding wires. By pre-setting wiring circuits in the AC board and using grounding screws to lock the AC board to conductive metal pillars, the rear panel is connected to the grounding pins via the conductive metal pillars, grounding screws, and circuits on the AC board to form a grounding circuit, thus eliminating the need for grounding wires.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A modular power supply that eliminates the need for grounding wires, comprising:

[0008] The rear side plate has a bottom plate extending forward connected to its lower end. The rear side plate has a first mounting through hole and a second mounting through hole with vertical spacing. The front side of the rear side plate is connected to an internally threaded post extending forward. The internally threaded post is a conductive metal post, and the front end of the internally threaded post is provided with a threaded connection port.

[0009] The PCB board is horizontally positioned on top of the base plate;

[0010] The AC module includes a male connector, an I / O switch, an AC board, and a grounding screw. The male connector and the I / O switch are fixed on the AC board, and the pins of the male connector and the I / O switch are electrically connected to the AC board. The AC board is provided with locking through holes extending from front to back. The ground pin of the male connector is connected to the location of the locking through hole through the circuit on the AC board.

[0011] The AC module is mounted on the rear panel from front to back. The male connector and I / O switch are exposed at the rear ends of the corresponding first and second mounting through holes. The AC board is arranged parallel to the front side of the rear panel. The locking through hole is directly opposite the front side of the threaded connection port. The grounding screw passes through the locking through hole and extends into the internal threaded post, so that the rear panel is connected to the ground pin through the internal threaded post, the grounding screw, and the circuit on the AC board to form a grounding circuit. The bottom of the AC board is connected to the PCB board.

[0012] As a preferred embodiment, the AC board has a pre-set neutral wire hole, a live wire hole, a ground wire hole, and I / O pin holes; the surface of the AC board has a first pad and a second pad located on the outer periphery of the ground wire hole and the locking through hole, respectively; the surface of the AC board has a pre-set wire connecting the first pad and the second pad; the neutral wire pin of the male connector is inserted forward into the neutral wire hole, the live wire pin of the male connector is inserted forward into the live wire hole, the ground wire pin of the male connector is inserted forward into the ground wire hole and soldered to the first pad for fixed electrical connection, and the grounding screw is soldered to the second pad for fixed electrical connection.

[0013] As a preferred solution, the bottom of the AC board extends downwards with two extension feet. Correspondingly, adapter holes are provided on the PCB board, and the extension feet are inserted into the corresponding adapter holes to form a fixed electrical connection.

[0014] As a preferred embodiment, the internally threaded post is located between the first mounting through hole and the second mounting through hole, so as to be separated between the male connector and the I / O switch.

[0015] As a preferred embodiment, the cap of the grounding screw presses against the front side of the second pad to form an electrical connection.

[0016] As a preferred embodiment, a front side plate is integrally extended upward from the front side of the bottom plate, and the front side plate, the bottom plate, and the rear side plate form an integrally connected lower U-shaped shell; correspondingly, an upper U-shaped shell is also provided, which includes an integrally connected left side plate, a top plate, and a right side plate, the left side plate is integrally extended downward from the left side of the top plate, and the right side plate is integrally extended downward from the right side of the top plate; the upper U-shaped shell is assembled on the lower U-shaped shell.

[0017] As a preferred option, an air vent is provided on the top plate, a fan is installed at the bottom of the top plate, and several heat dissipation holes are provided on the rear side plate.

[0018] As a preferred option, the rear end of the internally threaded column is welded and fixed to the front side of the rear side plate;

[0019] Alternatively, the rear end of the internally threaded column abuts against the front side of the rear side plate;

[0020] Alternatively, the rear end of the internally threaded post can be bonded to the front side of the rear panel using conductive adhesive.

[0021] As a preferred embodiment, the male connector has a recessed portion extending rearward from its rear end, and mounting edges extending to its left and right sides. The mounting edges are provided with inner mounting holes that extend through the front and rear. The recessed portion extends into the first mounting through hole. The mounting edges are restricted by the front side of the rear side plate. Correspondingly, an outer mounting hole that extends through the front and rear is provided on the rear side plate. A male connector screw is also provided. The male connector screw passes through the outer mounting hole from the outside of the rear side plate and locks into the inner mounting hole. Furthermore, the rear end of the I / O switch extends into the second mounting through hole.

[0022] A computer case, wherein a power supply is installed inside, and the power supply is a modular power supply that does not require grounding, as described in any of the preceding items.

[0023] Compared with existing technologies, this utility model has significant advantages and beneficial effects. Specifically, as can be seen from the above technical solution, it mainly uses conductive metal pillars for the internal threaded posts and pre-sets wiring circuits within the AC board. The grounding screw then locks the AC board onto the conductive metal pillars, allowing the rear panel to be connected to the ground pin via the conductive metal pillars, grounding screw, and the circuit on the AC board, forming a grounding circuit and eliminating the need for a ground wire. Simultaneously, the male connector and I / O switches are directly installed corresponding to the first and second mounting through holes on the rear panel, simplifying the production and installation process. This also facilitates stricter control over the positional accuracy of the male connector and I / O switches relative to the outer surface of the side panel of the housing after installation.

[0024] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0025] Figure 1 This is a rear view of a modular power supply that does not require a grounding wire, according to an embodiment of this utility model.

[0026] Figure 2 This is an exploded view of a modular power supply that does not require a grounding wire, according to an embodiment of this utility model.

[0027] Figure 3 This is a partial structural diagram of a modular power supply that does not require grounding, according to an embodiment of this utility model.

[0028] Figure 4 This is a partial exploded view of a modular power supply that does not require grounding, according to an embodiment of this utility model.

[0029] Figure 5 This is a cross-sectional view of a modular power supply that does not require a grounding wire, according to an embodiment of this utility model.

[0030] Figure 6 yes Figure 5 A magnified view of a section at point A in the middle;

[0031] Figure 7 This is a diagram of the pre-installed circuitry on the AC board, specifically the wires connecting the first and second pads. Detailed Implementation

[0032] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of an embodiment of the present invention.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", 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.

[0034] A modular power supply that eliminates the need for grounding wires, comprising:

[0035] The upper U-shaped shell 10 is a one-piece bent metal shell, which includes a left side plate, a top plate and a right side plate that are integrally connected. The left side plate extends downward from the left side of the top plate, and the right side plate extends downward from the right side of the top plate. The top plate is provided with an air vent, and the fan 30 is installed at the bottom of the top plate. Specifically, several connection holes are provided around the air vent, and screws are used to pass through the connection holes downward and fix them to the mounting frame of the fan 30.

[0036] The lower U-shaped shell 20 is a one-piece bent metal shell, which includes a front side plate 21, a bottom plate 22 and a rear side plate 23 that are integrally connected. The front side plate 21 extends integrally upward from the front side of the bottom plate 22, and the rear side plate 23 extends integrally upward from the rear side of the bottom plate 22. The front side plate 21, the bottom plate 22 and the rear side plate 23 constitute the integrally connected lower U-shaped shell 20. The rear side plate 23 has a first mounting through hole 231 and a second mounting through hole 232 with vertical spacing. The front side of the rear side plate 23 is connected to a forward-extending internally threaded post 233. The internally threaded post 233 is a conductive metal post, and the front end of the internally threaded post 233 is provided with a threaded connection port. The rear side plate 23 is provided with several heat dissipation holes.

[0037] PCB board 40 is horizontally positioned on top of base plate 22;

[0038] AC module 50 includes a male connector 51, an I / O switch 52, an AC board 53, and a grounding screw 54. The male connector 51 and I / O switch 52 are fixed to the AC board 53, and their pins are electrically connected to the AC board 53. The AC board 53 has a locking through-hole 531 extending from front to back. The male connector 51 has a neutral pin 511, a live pin 512, and a ground pin 513. The ground pin is connected to the locking through-hole 531 via a circuit on the AC board 53. The AC module 50 is mounted on the rear panel 23 from front to back. The switch 52 is exposed at the rear end of the corresponding first mounting through hole 231 and second mounting through hole 232. The AC board 53 is arranged parallel to the front side of the rear side plate 23. The locking through hole 531 is directly opposite the front side of the threaded connection port. The grounding screw 54 passes through the locking through hole 531 and extends into the internal threaded post 233, so that the rear side plate 23 is connected to the ground pin through the internal threaded post 233, the grounding screw 54, and the circuit on the AC board 53 to form a grounding circuit, realizing the elimination of grounding wire. The bottom of the AC board 53 is connected to the PCB board 40. Compared to traditional technologies, the solution in this embodiment eliminates the need for post-assembly wire soldering (i.e., soldering a wire to the ground pin of the male connector 51, with one bend of the wire soldered to the inner wall of the outer casing), effectively simplifying the process. Moreover, the AC board 53 typically has wires pre-installed on its surface to connect the first and second pads, meaning the wires are embedded during the manufacturing process of the AC board 53. This allows for automated, precise, and controllable wiring. During subsequent assembly, the grounding screw 54 is connected to the conductive metal post, mechanically locking the position while simultaneously establishing an electrical connection to form a ground. This ensures high grounding reliability and avoids potential issues with traditional wire soldering, such as inconsistent soldering quality and wire loosening.

[0039] Furthermore, the rear end of the male connector 51 has a rearwardly protruding insert 5101, and the left and right sides of the male connector 51 have mounting edges 5102. The mounting edges 5102 are provided with inner mounting holes 5103 that extend from front to back. The insert 5101 extends into the first mounting through hole 231. The mounting edges 5102 are constrained by the front side of the rear side plate 23. Correspondingly, the rear side plate 23 is provided with an outer mounting hole that extends from front to back, and a male connector 51 screw is also provided. The male connector 51 screw passes through the outer mounting hole from the outside of the rear side plate 23 and locks into the inner mounting hole, resulting in a smoother surface on the outside of the housing, ensuring accurate and reliable positioning of the male connector 51 and the I / O switch 52. Eliminating the side cover of traditional technology simplifies the structure, making it easier to process and install, while also solving the problem of increased cumulative tolerances caused by multi-layer board configurations.

[0040] The AC board 53 has a pre-set neutral wire hole, a live wire hole, a ground wire hole, and I / O pin holes. The surface of the AC board 53 exposes a first pad 1 and a second pad 2 located around the ground wire hole and a locking through hole, respectively. Inside the surface of the AC board 53, a wire 3 connecting the first pad 1 and the second pad 2 is pre-set. The neutral wire pin of the male connector 51 is inserted forward into the neutral wire hole, the live wire pin of the male connector 51 is inserted forward into the live wire hole, and the ground wire pin of the male connector 51 is inserted forward into the ground wire hole and soldered to the first pad for electrical connection. The grounding screw 54 is soldered to the second pad for electrical connection. In this embodiment, the internally threaded post 233 is located between the first mounting through hole 231 and the second mounting through hole 232, separating the male connector 51 and the I / O switch 52. The cap of the grounding screw 54 presses against the front side of the second pad to form an electrical connection.

[0041] The bottom of the AC board 53 extends downward with two extension feet. Correspondingly, an adapter hole is provided on the PCB board 40, and the extension feet are inserted into the corresponding adapter hole to form a fixed electrical connection.

[0042] In addition, a computer case is provided, which has a power supply installed inside, and the power supply is a modular power supply that does not require grounding, as described in any of the preceding items.

[0043] The key design feature of this invention lies in its use of conductive metal posts for the internal threaded posts 233, with pre-installed wiring circuitry within the AC board 53. The grounding screw 54 then secures the AC board 53 to the conductive metal posts, allowing the rear panel 23 to be connected to the ground pin via the conductive metal posts, grounding screw 54, and the circuitry on the AC board 53, thus eliminating the need for a separate grounding wire. Furthermore, the male connector 51 and I / O switch 52 are directly mounted to the first mounting through-hole 231 and the second mounting through-hole 232 on the rear panel 23, simplifying the manufacturing and installation process. This also facilitates stricter control over the positional accuracy of the male connector 51 and I / O switches relative to the outer surface of the side panel after installation.

[0044] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A plug-and-play modular power supply, characterized by, Including: The rear side plate has a bottom plate extending forward connected to its lower end. The rear side plate has a first mounting through hole and a second mounting through hole with vertical spacing. The front side of the rear side plate is connected to an internally threaded post extending forward. The internally threaded post is a conductive metal post, and the front end of the internally threaded post is provided with a threaded connection port. The PCB board is horizontally positioned on top of the base plate; The AC module includes a male connector, an I / O switch, an AC board, and a grounding screw. The male connector and the I / O switch are fixed on the AC board, and the pins of the male connector and the I / O switch are electrically connected to the AC board. The AC board is provided with locking through holes extending from front to back. The ground pin of the male connector is connected to the location of the locking through hole through the circuit on the AC board. The AC module is mounted on the rear panel from front to back. The male connector and I / O switch are exposed at the rear ends of the corresponding first and second mounting through holes. The AC board is arranged parallel to the front side of the rear panel. The locking through hole is directly opposite the front side of the threaded connection port. The grounding screw passes through the locking through hole and extends into the internal threaded post, so that the rear panel is connected to the ground pin through the internal threaded post, the grounding screw, and the circuit on the AC board to form a grounding circuit. The bottom of the AC board is connected to the PCB board.

2. The line-free modular power supply of claim 1, wherein, The AC board has pre-set neutral wire hole, live wire hole, ground wire hole, and I / O pin hole; the surface of the AC board has a first pad and a second pad located on the outer periphery of the ground wire hole and the locking through hole, respectively; the surface of the AC board has pre-set wires connecting the first pad and the second pad; the neutral wire pin of the male connector is inserted forward into the neutral wire hole, the live wire pin of the male connector is inserted forward into the live wire hole, the ground wire pin of the male connector is inserted forward into the ground wire hole and soldered to the first pad for fixed electrical connection, and the grounding screw is soldered to the second pad for fixed electrical connection.

3. The line-free modular power supply of claim 2, wherein, The bottom of the AC board has two extension feet that extend downwards. Correspondingly, adapter holes are provided on the PCB board, and the extension feet are inserted into the corresponding adapter holes to form a fixed electrical connection.

4. The line-free modular power supply of claim 3, wherein, The internally threaded post is located between the first mounting through hole and the second mounting through hole, so as to separate it from the male connector and the I / O switch.

5. The line-free modular power supply of claim 2, wherein, The cap of the grounding screw presses against the front side of the second pad to form an electrical connection.

6. The line-free modular power supply of claim 1, wherein, A front side plate extends integrally upward from the front side of the bottom plate, and the front side plate, bottom plate and rear side plate form an integrally connected lower U-shaped shell; correspondingly, an upper U-shaped shell is also provided, which includes an integrally connected left side plate, top plate and right side plate, the left side plate extends integrally downward from the left side of the top plate, and the right side plate extends integrally downward from the right side of the top plate; the upper U-shaped shell is assembled on the lower U-shaped shell.

7. The line-free modular power supply of claim 6, wherein, The top panel has air vents, a fan is installed at the bottom of the top panel, and several ventilation holes are provided on the rear panel.

8. The line-free modular power supply of claim 1, wherein, The rear end of the internally threaded column is welded and fixed to the front side of the rear side plate; Alternatively, the rear end of the internally threaded column abuts against the front side of the rear side plate; Alternatively, the rear end of the internally threaded post can be bonded to the front side of the rear panel using conductive adhesive.

9. A modular power supply without grounding wire according to claim 1, characterized in that, The male connector has a recessed part extending rearward from its rear end, and mounting edges extending to its left and right sides. The mounting edges are provided with inner mounting holes that pass through the front and rear. The recessed part extends into the first mounting through hole. The mounting edges are restricted by the front side of the rear side plate. Correspondingly, an outer mounting hole that passes through the front and rear is provided on the rear side plate. A male connector screw is also provided. The male connector screw passes through the outer mounting hole from the outside of the rear side plate and locks into the inner mounting hole. The rear end of the I / O switch extends into the second mounting through hole.

10. A computer case, inside which a power supply is disposed, characterized by: The power supply is a modular power supply that does not require grounding, as described in any one of claims 1 to 9.

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