Power supply with uniform heat dissipation structure

Abstract

The utility model relates to the technical field of power supplies, in particular to a power supply with a uniform heat dissipation structure. The device comprises a shell, a moving frame, an elastic supporting assembly and a hot pressing mechanism, a heat conduction plate is arranged in the shell, a power module is arranged on the heat conduction plate, a plurality of sets of heat dissipation holes used for conducting uniform heat dissipation on the power module are vertically formed in the four side edges of the shell at equal intervals, and the moving frame located above the heat conduction plate is movably arranged on the inner side of the shell. According to the power supply disclosed by the utility model, the movable frame is movably arranged on the inner side of the shell and is supported to a certain height by the supporting springs, so that the strip-shaped holes in the movable frame and the heat dissipation holes are staggered, the heat dissipation holes are blocked, and dust accumulation caused by the fact that the heat dissipation holes are kept in an open state for a long time under the condition that heat dissipation is not needed is avoided; meanwhile, a hot pressing mechanism is arranged, heat dissipation holes are automatically opened under the high-temperature condition, air exchange inside and outside the shell is achieved, and heat dissipation is conducted on the power module.

Description

Technical Field

[0001] The utility model relates to the technical field of power supplies, in particular to a power supply with a uniform heat dissipation structure. Background Technique

[0002] A power supply is a device that converts external electrical energy into direct current electrical energy required by electronic devices. It usually consists of several parts such as a transformer, a rectifier, and a filter. The transformer converts the AC voltage into low-voltage alternating current; the rectifier converts the alternating current into pulsating direct current; the filter converts the pulsating direct current into smooth direct current to supply power to various electronic devices and ensure the normal operation of the devices. According to different usage scenarios and power sizes, power supplies are divided into many types. For example, a PC power supply is a device that provides power for a personal computer; an industrial power supply is a device that provides power for production equipment; a mobile phone charging power supply is a device that directly provides direct current power for mobile devices, etc. No matter which type of power supply, its working principle and hardware composition are generally similar.

[0003] In order to ensure the heat dissipation capacity of the power supply device in the prior art, heat dissipation holes are usually opened on the power supply housing to dissipate heat from the internal heating elements. However, since the heat dissipation holes are kept open for a long time, even if a filter screen is installed, some dust will inevitably enter the inner side of the housing through the heat dissipation holes, thereby causing power supply short circuits or unnecessary connection problems. Content of the Utility Model

[0004] In view of the problems in the background technique, a power supply with a uniform heat dissipation structure is proposed. A moving frame is movably arranged on the inner side of the housing and is supported to a certain height by a support spring, so that the strip holes on the moving frame are misaligned with the heat dissipation holes, thereby blocking the heat dissipation holes and avoiding the heat dissipation holes being kept open for a long time when heat dissipation is not required, thus accumulating dust.

[0005] The utility model proposes a power supply with a uniform heat dissipation structure, including

[0006] A housing, inside which a heat conduction plate is arranged, and a power supply module is arranged on the heat conduction plate. A plurality of groups of heat dissipation holes for uniformly dissipating heat from the power supply module are vertically and equidistantly opened on four sides of the housing;

[0007] A moving frame, which is located inside the housing and is movably arranged above the heat conduction plate, has a plurality of groups of strip holes misaligned with the heat dissipation holes, and an elastic support assembly is arranged at the bottom thereof below the heat conduction plate; and

[0008] A hot pressing mechanism is arranged at the bottom of the heat conduction plate and is used to cooperate with the elastic support assembly to drive the moving frame to move at high temperatures so that the strip holes on it are aligned with the heat dissipation holes.

[0009] Preferably, a maintenance cover plate is provided at the top of the housing, and fastening screws for connecting with the housing are provided on the maintenance cover plate.

[0010] Preferably, filter screens for dust prevention during ventilation are provided inside each of the multiple groups of heat dissipation holes.

[0011] Preferably, the elastic support assembly includes a vertical shaft, a moving frame, a bent plate, and a support spring. Four groups of vertical shafts are arranged in a cross-symmetrical manner. The top end thereof is connected to the heat conduction plate, and the bottom end is connected to the bottom wall of the housing. The moving frame is slidably arranged between the four groups of vertical shafts;

[0012] The moving frame is arranged in a cross structure, and bent plates are connected to the four ends thereof. One end of the bent plate passes through the heat conduction plate and is connected to the moving frame. A support spring abuts against the bottom of the moving frame, and the support spring is sleeved on the vertical shaft.

[0013] Preferably, the hot pressing mechanism includes an airbag and a pressing plate. The airbag is connected to the bottom of the heat conduction plate, and the pressing plate is connected to the bottom of the airbag.

[0014] Preferably, through holes for the bent plates to pass through are formed in the heat conduction plate.

[0015] Through the above technical solution, that is, in the power supply disclosed by the present utility model, a moving frame and a bent plate are connected with a moving frame inside the housing, and the support spring is used to support it to a certain height, so that the strip holes on the moving frame are misaligned with the heat dissipation holes, thereby blocking the heat dissipation holes and preventing dust from accumulating due to the long-term opening of the heat dissipation holes when heat dissipation is not required; when the power supply module generates heat during operation, it applies a downward pressing force to the moving frame through the hot pressing mechanism. Under the action of the pressing force, the moving frame drives the moving frame to move downward, so that the strip holes thereon are aligned with the heat dissipation holes, conducting the inside and outside of the housing, and enabling the power supply module to dissipate heat evenly through the surrounding heat dissipation holes.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a power supply with a uniform heat dissipation structure according to the present utility model;

[0018] Figure 2 is Figure 1 a partial split structural diagram of;

[0019] Figure 3 is Figure 1 a partial side-sectional structural diagram of;

[0020] Figure 4 is Figure 3 a partial split structural diagram of.

[0021] Reference numerals: 1, housing; 2, heat conducting plate; 3, power supply module; 4, heat dissipation holes; 5, moving frame; 6, strip holes; 7, maintenance cover plate; 8, filter screen; 9, vertical shaft; 10, moving rack; 11, bent plate; 12, support spring; 13, airbag; 14, pressing plate; 15, through hole; 16, fastening screw. Detailed implementation manners

[0022] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only for explaining and understanding the present disclosure, and are not used to limit the present disclosure.

[0023] Embodiment 1

[0024] As Figures 1-4 shown, a power supply with a uniform heat dissipation structure proposed by the present utility model includes a housing 1, a moving frame 5, an elastic support assembly, and a hot pressing mechanism. A heat conducting plate 2 is arranged inside the housing 1, a power supply module 3 is arranged on the heat conducting plate 2, a plurality of groups of heat dissipation holes 4 for uniformly dissipating heat from the power supply module 3 are vertically and equidistantly arranged on four side edges of the housing 1, a moving frame 5 located above the heat conducting plate 2 is movably arranged inside the housing 1, a plurality of groups of strip holes 6 misaligned with the heat dissipation holes 4 are arranged on the moving frame 5, an elastic support assembly located below the heat conducting plate 2 is arranged at the bottom thereof, and a hot pressing mechanism for cooperating with the elastic support assembly is arranged at the bottom of the heat conducting plate 2, which drives the moving frame 5 to move at high temperatures so that the strip holes 6 thereon are aligned with the heat dissipation holes 4.

[0025] As Figure 2 shown, a maintenance cover plate 7 is arranged on the top of the housing 1, and a fastening screw 16 for connecting with the housing 1 is arranged on the maintenance cover plate 7.

[0026] Among them, fixing holes for cooperating with the fastening screw 16 are arranged on both the maintenance cover plate 7 and the upper end surface of the housing 1. The maintenance cover plate 7 can be detached from the housing 1 through the fastening screw 16, which is convenient for overhauling the power supply module 3 inside the housing 1.

[0027] As Figure 1 shown, filter screens 8 for dust prevention during ventilation are arranged inside a plurality of groups of heat dissipation holes 4.

[0028] Among them, through the filter screen 8, it is possible to prevent dust from entering the inside of the housing 1 from the heat dissipation holes 4 and adhering to the surface of the power supply module 3 as much as possible when the heat dissipation holes 4 are open.

[0029] Embodiment 2

[0030] As Figures 1-4As shown in the figure, a power supply with a uniform heat dissipation structure proposed by the present utility model further details the specific components of the elastic support assembly and the hot pressing mechanism, as well as the cooperation mode between the two on the basis of the above embodiments.

[0031] As Figure 3 and Figure 4 shown in the figure, the elastic support assembly includes a vertical shaft 9, a moving frame 10, a bent plate 11 and a support spring 12. Four groups of vertical shafts 9 are arranged in a cross-symmetrical manner. The top of the vertical shaft 9 is connected to the heat conduction plate 2, and the bottom is connected to the bottom wall of the housing 1. The moving frame 10 is slidably arranged between the four groups of vertical shafts 9; the moving frame 10 is arranged in a cross structure, and bent plates 11 are connected to the four ends thereof. One end of the bent plate 11 passes through the heat conduction plate 2 and is connected to the moving frame 5. A support spring 12 abuts against the bottom of the moving frame 10, and the support spring 12 is sleeved on the vertical shaft 9.

[0032] In the absence of external force, the support spring 12 supports the moving frame 10, so that the moving frame 10 drives the moving frame 5 to be at the corresponding height through the bent plate 11. At this height, the strip holes 6 opened on the moving frame 5 are in a misaligned state with the heat dissipation holes 4, so the moving frame 5 will block the heat dissipation holes 4 to prevent dust from entering the interior of the housing 1 through the heat dissipation holes 4 and adhering to the surface of the power supply module 3.

[0033] As Figure 3 shown in the figure, the hot pressing mechanism includes an airbag 13 and a pressing plate 14. The airbag 13 is connected to the bottom of the heat conduction plate 2, and the pressing plate 14 is connected to the bottom of the airbag 13.

[0034] When the power supply module 3 is in high-frequency use, it will generate heat by itself. The heat is quickly conducted to the airbag 13 through the heat conduction plate 2. The gas in the airbag 13 expands due to heat, causing the airbag 13 to deform itself and driving the pressing plate 14 to move downward. During the movement of the pressing plate 14, a pressing force is applied to the moving frame 10. Under the action of the pressing force, the moving frame 10 squeezes the support spring 12 and drives the moving frame 5 to move downward through the bent plate 11. During the downward movement of the moving frame 5, the strip holes 6 on it are in an aligned state with the heat dissipation holes 4, that is, the housing 1 can dissipate heat from the power supply module 3 through the heat dissipation holes 4. When the power supply module 3 returns to normal temperature, the airbag 13 will automatically contract, causing the moving frame 10 to reset and rise under the action of the support spring 12, thereby driving the moving frame 5 to move synchronously, so that the moving frame 5 blocks the heat dissipation holes 4.

[0035] As Figure 1 shown in the figure, through holes 15 for the bent plates 11 to pass through are opened on the heat conduction plate 2.

[0036] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited thereto, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those skilled in the relevant technical field.

Claims

1. A power supply with a uniform heat dissipation structure, characterized in that: include A shell (1) is provided with a heat conducting plate (2) inside, a power module (3) is provided on the heat conducting plate (2), and a plurality of groups of heat dissipation holes (4) for uniformly dissipating heat from the power module (3) are vertically and equidistantly provided on four sides of the shell (1); A movable frame (5) is located inside the housing (1) and is movably arranged above the heat conducting plate (2), and is provided with a plurality of strip holes (6) that are offset from the heat dissipation holes (4), and an elastic support component is arranged at the bottom thereof and is located below the heat conducting plate (2); as well as The hot pressing mechanism is arranged at the bottom of the heat conducting plate (2) and is used to cooperate with the elastic supporting assembly to drive the moving frame (5) to move under high temperature conditions so that the strip holes (6) thereon are aligned with the heat dissipation holes (4).

2. A power supply with a uniform heat dissipation structure according to claim 1, characterized in that: A maintenance cover plate (7) is arranged on the top of the housing (1), and a fastening screw (16) for connecting with the housing (1) is arranged on the maintenance cover plate (7).

3. The power supply with uniform heat dissipation structure according to claim 1, characterized in that: Filters (8) for preventing dust during ventilation are arranged inside the plurality of groups of heat dissipation holes (4).

4. A power supply with a uniform heat dissipation structure according to claim 3, characterized in that: The elastic support assembly comprises a vertical shaft (9), a movable frame (10), a bending plate (11) and a support spring (12); the vertical shaft (9) is cross-symmetrically arranged in four groups, the top end of which is connected to the heat conducting plate (2), and the bottom end is connected to the bottom wall of the shell (1); the movable frame (10) is slidably arranged between the four groups of vertical shafts (9); The movable frame (10) is arranged as a cross structure, and its four ends are all connected to a bending plate (11), one end of the bending plate (11) passes through the heat conducting plate (2) and is connected to the movable frame (5), and a supporting spring (12) is abutted against the bottom of the movable frame (10), and the supporting spring (12) is sleeved on the vertical shaft (9).

5. The power supply with uniform heat dissipation structure according to claim 1, characterized in that: The hot pressing mechanism comprises an air bag (13) and a pressing plate (14); the air bag (13) is connected to the bottom of the heat conducting plate (2); and the bottom of the air bag (13) is connected to the pressing plate (14).

6. The power supply with uniform heat dissipation structure according to claim 4, characterized in that: The heat conducting plate (2) is provided with a through hole (15) for the bent plate (11) to pass through.

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