Rectifier bridge frame structure with wide welding area

Abstract

The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge frame structure with a wide welding area. In order to solve the problems that the heat dissipation effect is reduced, an internal chip is easy to damage and the use of the rectifier bridge is influenced because the heat dissipation fins of the existing rectifier bridge are easy to damage when being extruded, the following technical scheme is provided: the rectifier bridge comprises a rectifier bridge shell, and the chip is arranged in the bottom of the rectifier bridge shell; the bottom wall body of the rectifier bridge shell is connected with a terminal, the top wall body of the rectifier bridge shell is provided with first cooling fins which are convenient for cooling the rectifier bridge shell, and the plurality of first cooling fins are internally provided with compression-resistant assemblies which are convenient for cooling the internal structure of the rectifier bridge shell. According to the utility model, the heat dissipation effect is improved, the pressure resistance of the rectifier bridge can be improved while heat dissipation is realized, and the internal structure is prevented from being damaged and the use is prevented from being influenced when the rectifier bridge is extruded.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge frame structure with a wide welding area. Background Art

[0002] The frame structure of the rectifier bridge usually refers to the external structure of the rectifier bridge module, which includes the connection terminals, integrated components and plastic casing of the rectifier bridge. This frame structure protects the internal electronic components and connection terminals, and also provides convenience for installing and connecting the rectifier bridge. The rectifier bridge module sometimes uses a large-sized welding area, usually square, to expand its welding area to provide better stability and thermal conductivity when welding on the circuit board. Nowadays, some rectifier bridges are equipped with heat sinks on the casing to dissipate the heat of the rectifier bridge and avoid heat conduction to the circuit board, which increases the workload of the circuit board and affects the normal operation of the circuit board.

[0003] However, the heat sink of the existing rectifier bridge is easily damaged when squeezed, resulting in reduced heat dissipation effect and easy damage to the internal chip, affecting the use of the rectifier bridge. In view of this, we propose a rectifier bridge frame structure with a wide welding area. Utility Model Content

[0004] The utility model aims to solve the problems existing in the background technology and propose a rectifier bridge frame structure with a wide welding area.

[0005] The technical solution of the utility model is as follows: a rectifier bridge frame structure with a wide welding area, comprising a rectifier bridge housing, a chip is installed on the bottom of the rectifier bridge housing, a terminal is connected to the bottom wall of the rectifier bridge housing, a first heat sink for dissipating the heat of the rectifier bridge housing is arranged on the top wall of the rectifier bridge housing, a plurality of the first heat sinks are each provided with a pressure-resistant component for dissipating the heat of the internal structure of the rectifier bridge housing, a movable component for preventing the pressure-resistant component from escaping from the rectifier bridge housing is provided in the rectifier bridge housing, limiting slide grooves are symmetrically provided on the inner walls on both sides of the rectifier bridge housing, a force-removing component for assisting the movable component to move is provided in the two limiting slide grooves, and a buffer spring for buffering the force-removing component in a moving state is symmetrically provided in the two limiting slide grooves.

[0006] Preferably, the top and bottom of the first heat sink are both open, a movable opening is provided on the top wall of the rectifier bridge housing, and the opening at the bottom of the first heat sink corresponds to the position of the movable opening.

[0007] Preferably, the pressure-resistant assembly comprises a second heat sink, the second heat sink is arranged inside the first heat sink, and guide slide bars are symmetrically welded on both side walls of the second heat sink.

[0008] Preferably, guide slide grooves are symmetrically provided inside both sides of the first heat sink, and the plurality of guide slide bars are respectively arranged in the guide slide grooves corresponding in position.

[0009] Preferably, the movable assembly comprises a movable plate, and bumps are symmetrically welded on both side walls of the movable plate.

[0010] Preferably, an N-shaped notch is provided at the bottom wall of the second heat sink, and the movable plate is arranged in the N-shaped notch.

[0011] Preferably, first rotation grooves are symmetrically provided on both side walls of the inner surface of the N-shaped notch, and a portion of the protrusions are arranged in the first rotation grooves corresponding to the positions.

[0012] Preferably, the force unloading assembly comprises a moving bar, a second rotation groove is formed on the moving bar, and another part of the protrusions are arranged in the second rotation groove corresponding to the position.

[0013] Preferably, anti-slip bars are symmetrically welded on the top wall and the bottom wall of the moving bar, and the moving bar and the anti-slip bar are both arranged in the limiting sliding groove.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] The utility model dissipates heat to the rectifier bridge housing through the first heat sink arranged in an array, and under the setting of the second heat sink, the contact area between the second heat sink and the first heat sink is increased, and the structure of part of the second heat sink is arranged in the rectifier bridge housing to improve the heat dissipation effect, and at the same time, under the setting of the movable component and the force unloading component, the rectifier bridge housing is unloaded through the force unloading component when it is squeezed, and under the arrangement of the buffer spring, the force unloading component in the force unloading state is buffered, thereby improving the pressure resistance of the rectifier bridge housing and reducing the risk of damage to the chip when it is squeezed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view structural diagram of a rectifier bridge frame structure with a wide welding area;

[0017] Figure 2 yes Figure 1 A schematic diagram of a cross-sectional structure viewed from above;

[0018] Figure 3 yes Figure 1 Isometric structural diagram of the medium compression component;

[0019] Figure 4 yes Figure 2 A schematic diagram of a cutaway three-dimensional structure of an active component;

[0020] Figure 5 yes Figure 2 Isometric structural diagram of the center unloading assembly.

[0021] Figure numerals: 1. rectifier bridge housing; 2. chip; 3. terminal; 4. first heat sink; 5. pressure-resistant component; 51. second heat sink; 52. guide slide bar; 6. movable component; 61. movable plate; 62. bump; 7. force unloading component; 71. movable bar; 72. anti-slip bar; 8. buffer spring. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Example

[0024] like Figure 1-5 As shown, the utility model proposes a rectifier bridge frame structure with a wide welding area, including a rectifier bridge housing 1, a chip 2 fixedly mounted on the bottom inner wall of the rectifier bridge housing 1, and the top of the terminal 3 is arranged in the rectifier bridge housing 1 and connected to the chip 2; a plurality of first heat sinks 4 are arranged in a horizontal array on the top wall of the rectifier bridge housing 1, and the top and bottom of the first heat sink 4 are both in an open state, and the bottom wall opening of the first heat sink 4 corresponds to the position of the movable opening opened on the top wall of the rectifier bridge housing 1, so as to facilitate the heat dissipation inside the rectifier bridge housing 1, and the setting of the first heat sink 4 is used to dissipate heat from the rectifier bridge housing 1 to avoid affecting the operation of the chip 2.

[0025] Furthermore, a plurality of first heat sinks 4 are each provided with a pressure-resistant component 5 for dissipating heat from the internal structure of the rectifier bridge housing 1. The pressure-resistant component 5 includes a second heat sink 51 and a guide slide 52. The plurality of second heat sinks 51 are respectively arranged in the plurality of first heat sinks 4. The plurality of guide slides 52 are symmetrically welded on the two side walls of the second heat sink 51, and are arranged in a guide slide groove symmetrically opened on the inner wall of the first heat sink 4. The guide slide 52 cooperates with the guide slide groove to prevent the second heat sink 51 from shaking, and plays a guiding role for the second heat sink 51 in a moving state. The respective structures of the second heat sink 51 are arranged in the rectifier bridge housing 1, and the outer surface wall of the second heat sink 51 is in close contact with the inner wall of the first heat sink 4, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0026] Furthermore, a movable component 6 is provided in the rectifier bridge housing 1 to prevent the pressure-resistant component 5 from escaping from the rectifier bridge housing 1. The movable component 6 includes a movable plate 61 and a protrusion 62. An N-shaped notch is provided at the bottom structure of the second heat sink 51. The upper structure of the movable plate 61 is arranged in the N-shaped notch. A plurality of protrusions 62 are symmetrically welded on the two side walls of the movable plate 61. A portion of the protrusions 62 are arranged in a first rotating groove symmetrically opened on the inner surface wall of the N-shaped notch. The upper structure of the movable plate 61 is restricted to the bottom structure of the second heat sink 51 through the cooperation of the first rotating groove and a portion of the protrusions 62, which is beneficial for buffering during the descent of the second heat sink 51.

[0027] Furthermore, the two limiting slide grooves are both provided with a force unloading component 7 that assists the movable component 6 to move. The force unloading component 7 includes a moving bar 71 and an anti-slipping bar 72. The moving bar 71 is arranged in the limiting slide groove opened on the inner wall of the rectifier bridge housing 1. The two anti-slipping bars 72 are symmetrically welded on the top and bottom walls of the moving bar 71 and are also arranged in the limiting slide groove. The limiting slide groove cooperates with the moving bar 71 and the anti-slipping bar 72 to facilitate the movement of the auxiliary moving bar 71 in the limiting slide groove. A second rotation groove is opened on the side wall of the moving bar 71, and another part of the protrusion 62 is arranged in the second rotating groove, and when the second heat sink 51 is pressed down by pressure, the movable plate 61 cooperates with the movable plate 61 to apply pressure to the moving bar 71, so that the pressure exerted on the moving bar 71 during its movement is buffered, thereby achieving force unloading and improving the pressure resistance of this rectifier bridge; multiple buffer springs 8 are symmetrically arranged in the corresponding limiting slide grooves, one end of the buffer spring 8 is connected to the wall of the limiting slide groove, and the other end of the buffer spring 8 is connected to the end of the moving bar 71, thereby playing a buffering role on the moving bar 71 during the movement process and improving the force unloading effect.

[0028] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A rectifier bridge frame structure with a wide welding area, comprising a rectifier bridge housing (1), characterized in that: A chip (2) is installed inside the bottom of the rectifier bridge housing (1); a terminal (3) is connected to the bottom wall of the rectifier bridge housing (1); a first heat sink (4) is arranged on the top wall of the rectifier bridge housing (1) for dissipating heat from the rectifier bridge housing (1); a plurality of the first heat sinks (4) are each provided with a pressure-resistant component (5) for dissipating heat from the internal structure of the rectifier bridge housing (1); a movable component (6) is provided in the rectifier bridge housing (1) for preventing the pressure-resistant component (5) from escaping from the rectifier bridge housing (1); limiting slide grooves are symmetrically provided on the inner walls on both sides of the rectifier bridge housing (1); a force-releasing component (7) for assisting the movable component (6) in moving is provided in the two limiting slide grooves; and a buffer spring (8) is symmetrically provided in the two limiting slide grooves for buffering the force-releasing component (7) in a moving state.

2. A rectifier bridge frame structure with a wide welding area according to claim 1, characterized in that: The top and bottom of the first heat sink (4) are both in an open state, a movable opening is provided on the top wall of the rectifier bridge housing (1), and the bottom opening of the first heat sink (4) corresponds to the position of the movable opening.

3. A rectifier bridge frame structure with a wide welding area according to claim 1, characterized in that: The pressure-resistant component (5) comprises a second heat sink (51), the second heat sink (51) being arranged inside the first heat sink (4), and guide slide bars (52) being symmetrically welded on both side walls of the second heat sink (51).

4. A rectifier bridge frame structure with a wide welding area according to claim 3, characterized in that: Guide slide grooves are symmetrically provided inside the two sides of the first heat sink (4), and a plurality of guide slide bars (52) are respectively arranged in the guide slide grooves corresponding to the positions.

5. A rectifier bridge frame structure with a wide welding area according to claim 4, characterized in that: The movable assembly (6) comprises a movable plate (61), and projections (62) are symmetrically welded on both side walls of the movable plate (61).

6. A rectifier bridge frame structure with a wide welding area according to claim 5, characterized in that: An N-shaped notch is provided on the bottom wall of the second heat sink (51), and the movable plate (61) is arranged in the N-shaped notch.

7. A rectifier bridge frame structure with a wide welding area according to claim 6, characterized in that: First rotation grooves are symmetrically provided on the two side walls of the inner surface of the N-shaped notch, and a portion of the protrusions (62) are arranged in the first rotation grooves corresponding to the positions.

8. A rectifier bridge frame structure with a wide welding area according to claim 7, characterized in that: The force unloading assembly (7) comprises a moving bar (71), a second rotation groove is formed on the moving bar (71), and another part of the protrusions (62) are arranged in the second rotation groove at a corresponding position.

9. A rectifier bridge frame structure with a wide welding area according to claim 8, characterized in that: Anti-slip bars (72) are symmetrically welded on the top wall and the bottom wall of the moving bar (71), and the moving bar (71) and the anti-slip bar (72) are both arranged in the limiting sliding groove.

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