Rectifier bridge capable of preventing electrode from being pressed

Abstract

The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge capable of preventing electrodes from being pressed. According to the technical scheme, the LED lamp comprises a circuit board, a plurality of diodes are arranged on the front side of the circuit board, a fixing plate is arranged on the front side of the circuit board, a left protection frame and a right protection frame are arranged on the front side of the fixing plate in a sliding mode, two sets of clamping grooves are formed in the front side of the fixing plate, and a half baffle ring is arranged in each clamping groove. According to the utility model, the fixed plate, the left protection frame, the right protection frame, the clamping groove, the half baffle ring and the clamping piece are arranged, so that the diode can be conveniently protected, two poles on the diode are prevented from being pressed, the diode protection device can be quickly disassembled and assembled, equipment can be conveniently overhauled, the positions of the left protection frame and the right protection frame are conveniently limited through the positioning mechanism, and the service life of the diode protection device is prolonged. And through the arrangement of the heat dissipation holes, heat dissipation is facilitated, and the service life of the circuit board and the diodes is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier bridges, in particular to a rectifier bridge that avoids pressing electrodes. Background Technique

[0002] A rectifier bridge is an electronic circuit used to convert alternating current into direct current. It consists of four or more diodes configured in a bridge circuit that can convert the positive and negative half-cycles of alternating current into direct current respectively. A diode has two terminals, usually called the cathode and the anode. During operation, the diode restricts the current to one direction, only allowing current to flow from the anode to the cathode and preventing the passage of reverse current. When connecting motor equipment or power supply circuits, since diodes are usually relatively fragile electronic components, in order to prevent the diodes from being pressed and causing the electrodes to bend and damage, it is necessary to protect the diodes. Therefore, it is necessary to propose a rectifier bridge that avoids pressing electrodes. Content of the Utility Model

[0003] The purpose of the utility model is to propose a rectifier bridge that avoids pressing electrodes for the problems existing in the background technique.

[0004] The technical solution of the utility model: A rectifier bridge that avoids pressing electrodes, including a circuit board. A plurality of diodes are arranged on the front side of the circuit board. A fixing plate is arranged on the front side of the circuit board. A left protection frame and a right protection frame are slidably arranged on the front side of the fixing plate. Two groups of card slots are opened on the front side of the fixing plate. A semi-blocking ring is arranged inside each card slot. A set of clamping members are arranged on the rear sides of the left protection frame and the right protection frame. Each set of clamping members is respectively installed corresponding to a set of card slots. Positioning mechanisms are arranged on both sides of the fixing plate on the front side of the circuit board. The positioning mechanism includes an installation frame. A turning knob is arranged on the side of the installation frame away from the fixing plate. A rotating shaft is arranged on the side of the turning knob close to the fixing plate. A gear is arranged on the outer circle of the rotating shaft. Rack gears are meshed with both the upper and lower sides of the gear. A baffle is arranged on the bottom surface of the lower rack gear.

[0005] Preferably, fixing grooves are opened at positions corresponding to each diode on the front side of the fixing plate, and the diodes are installed corresponding to the fixing grooves.

[0006] Preferably, two rectangular slots are opened on the right side of the left protection frame, and two rectangular blocks are arranged on the left side of the right protection frame. The rectangular blocks are slidably installed corresponding to the rectangular slots. A plurality of heat dissipation holes are opened on the top and bottom surfaces of the left protection frame and the right protection frame.

[0007] Preferably, the two groups of semi-blocking rings are respectively located on the sides of the two groups of card slots close to each other.

[0008] Preferably, the clamp is arranged in an arrow shape and has elastic deformation capability.

[0009] Preferably, a cross groove is provided on a side of the knob away from the mounting frame.

[0010] Preferably, one end of the rotating shaft close to the fixing plate is rotatably connected to the fixing plate.

[0011] Preferably, a trapezoidal block is provided on one side of each rack close to the fixed plate, and trapezoidal grooves are provided on the left and right sides of the fixed plate at positions corresponding to each rack, and the trapezoidal block is slidably connected to the trapezoidal grooves.

[0012] Preferably, a slide groove is provided on a side of each installation frame away from the circuit board, the baffle is slidably connected to the slide groove, and the sides of the two baffles close to each other are respectively fitted with the sides of the left protective frame and the right protective frame away from each other.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] The utility model can protect the diode by arranging a fixing plate, a left protective frame, a right protective frame, a clamping groove, a half retaining ring and a clamping piece, thereby preventing the two poles on the diode from being compressed, and can be quickly disassembled and assembled, which is convenient for overhauling the equipment. The positioning mechanism is arranged to limit the positions of the left protective frame and the right protective frame, thereby ensuring the stable installation of the left protective frame and the right protective frame. The heat dissipation holes are arranged to facilitate heat dissipation, thereby extending the service life of the circuit board and the diode. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of the circuit board, the diode, and the fixing plate in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the fixing plate in the utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the left protection frame and the right protection frame in the utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between the circuit board and the positioning mechanism in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the positioning mechanism in the utility model.

[0021] Reference numerals: 1, circuit board; 2, diode; 3, fixing plate; 4, left protective frame; 5, right protective frame; 6, card slot; 7, semi retaining ring; 8, card member; 9, positioning mechanism; 91, mounting frame; 92, turning knob; 93, rotating shaft; 94, gear; 95, rack; 96, baffle; 10, fixing groove; 11, rectangular block; 12, heat dissipation hole; 13, trapezoidal block. Detailed implementation manners

[0022] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Embodiment

[0024] As Figures 1 to 6 shown, a rectifier bridge for avoiding pressing electrodes proposed by the present utility model includes a circuit board 1. A plurality of diodes 2 are arranged on the front side of the circuit board 1. The front side of the circuit board 1 is fixedly connected to the rear end of the diode 2. A fixing plate 3 is arranged on the front side of the circuit board 1. The front side of the circuit board 1 is fixedly connected to the rear side of the fixing plate 3. Fixing grooves 10 are opened at positions corresponding to each diode 2 on the front side of the fixing plate 3. The diode 2 is correspondingly installed in the fixing groove 10. The fixing groove 10 can play a role in fixing the end where the diode 2 is connected to the circuit board 1, preventing the end where the diode 2 is connected to the circuit board 1 from being pressed and bent. A left protective frame 4 and a right protective frame 5 are slidably arranged on the front side of the fixing plate 3. Two rectangular grooves are opened on the right side of the left protective frame 4. Two rectangular blocks 11 are arranged on the left side of the right protective frame 5. The left side of the right protective frame 5 is fixedly connected to the right side of the rectangular block 11. The rectangular block 11 is correspondingly and slidably installed in the rectangular groove;

[0025] By correspondingly and slidably installing the rectangular block 11 in the rectangular groove, it is convenient to limit the up and down positions where the left protective frame 4 and the right protective frame 5 are connected. Heat dissipation holes 12 are opened on the top and bottom surfaces of the left protective frame 4 and the right protective frame 5. Heat dissipation is facilitated by opening the heat dissipation holes 12. Two groups of card slots 6 are opened on the front side of the fixing plate 3. A semi retaining ring 7 is arranged inside each card slot 6. The semi retaining ring 7 is fixedly installed in the card slot 6. The two groups of semi retaining rings 7 are respectively located on one side where the two groups of card slots 6 are close to each other. A group of card members 8 are arranged on the rear sides of the left protective frame 4 and the right protective frame 5. The left protective frame 4, the right protective frame 5 and the card member 8 are fixedly connected. The card member 8 is arrow-shaped and has the ability of elastic deformation. Each group of card members 8 is correspondingly installed in the corresponding group of card slots 6. When installation is required, the card member 8 can be installed into the card slot 6 through the deformation ability of the card member 8, and the semi retaining ring 7 limits the upper and lower sides of the card member 8 to ensure that the card member 8 does not fall out inside the card slot 6;

[0026] When it is necessary to remove the left protective frame 4 and the right protective frame 5, slide the left protective frame 4 and the right protective frame 5 to both sides, so that the clamping member 8 slides to the side where the clamping groove 6 has no half retaining ring 7 for limiting, so that the clamping member 8 can be taken out of the clamping groove 6, so as to separate the left protective frame 4 and the right protective frame 5 from the fixing plate 3. Positioning mechanisms 9 are arranged on both sides of the fixing plate 3 in the front side of the circuit board 1. The positioning mechanism 9 includes a mounting frame 91. The mounting frame 91 is fixedly connected to both sides of the fixing plate 3. A turning knob 92 is arranged on the side of the mounting frame 91 away from the fixing plate 3. The mounting frame 91 is rotatably connected to the turning knob 92. A cross groove is opened on the side of the turning knob 92 away from the mounting frame 91. The turning knob 92 can be driven to rotate by using a cross screwdriver through the cross groove. A rotating shaft 93 is arranged on the side of the turning knob 92 close to the fixing plate 3. The turning knob 92 is fixedly connected to the rotating shaft 93. One end of the rotating shaft 93 close to the fixing plate 3 is rotatably connected to the fixing plate 3. By rotatably connecting the rotating shaft 93 to the fixing plate 3, it is convenient to support and fix the rotating shaft 93;

[0027] A gear 94 is arranged on the outer ring of the rotating shaft 93. The outer ring of the rotating shaft 93 is fixedly connected to the inner ring of the gear 94. Rack bars 95 are meshed and arranged on both the upper and lower sides of the gear 94. A trapezoidal block 13 is arranged on the side of each rack bar 95 close to the fixing plate 3. The rack bar 95 is fixedly connected to the trapezoidal block 13. Trapezoidal grooves are opened at the corresponding positions of both the left and right sides of the fixing plate 3 for each rack bar 95. The trapezoidal block 13 is slidably connected to the trapezoidal groove. The trapezoidal groove can be used to guide and limit the trapezoidal block 13, so as to guide and limit the running track of the rack bar 95 and keep the rack bar 95 in a straight running state. A baffle 96 is arranged on the bottom surface of the lower rack bar 95. The rack bar 95 is fixedly connected to the baffle 96. A sliding groove is opened on the side of each mounting frame 91 away from the circuit board 1. The baffle 96 is slidably connected to the sliding groove. By opening the sliding groove, a running space can be left for the baffle 96 and the baffle 96 can be stored. The sides of the two baffles 96 close to each other are respectively attached to the sides of the left protective frame 4 and the right protective frame 5 away from each other. By moving out the baffle 96, the left and right positions of the left protective frame 4 and the right protective frame 5 can be limited. By storing the baffle 96, the left protective frame 4 and the right protective frame 5 can be removed.

[0028] In this embodiment, when using this device, the fixing plate 3 is fixedly connected to the circuit board 1. Then, the clamping members 8 on the left protection frame 4 and the right protection frame 5 are respectively installed into the card slots 6, and the half retaining rings 7 limit the clamping members 8. Then, rotate the rotary knob 92. The rotation of the rotary knob 92 drives the rotation of the rotating shaft 93. The rotation of the rotating shaft 93 can drive the rotation of the gear 94. The rotation of the gear 94 can drive the two racks 95 to move closer to or away from each other, so as to drive the baffle 96 to move out of the chute to limit the positions of the left protection frame 4 and the right protection frame 5. When it is necessary to remove the left protection frame 4 and the right protection frame 5, rotate the rotary knob 92 in the reverse direction to move the baffle 96 back into the chute. Then, move the left protection frame 4 and the right protection frame 5 to both sides, so that the clamping members 8 are on the side of the inner part of the card slots 6 away from the half retaining rings 7, so that the clamping members 8 can be taken out of the card slots 6, and then the left protection frame 4 and the right protection frame 5 can be removed for easy maintenance.

[0029] The above specific embodiment is only a preferred embodiment of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A rectifier bridge for avoiding compression of electrodes, comprising a circuit board (1), characterized in that: A plurality of diodes (2) are arranged on the front side of the circuit board (1), a fixing plate (3) is arranged on the front side of the circuit board (1), a left protective frame (4) and a right protective frame (5) are slidably arranged on the front side of the fixing plate (3), two groups of card slots (6) are opened on the front side of the fixing plate (3), a half retaining ring (7) is arranged inside each of the card slots (6), a group of card members (8) are arranged on the rear side of the left protective frame (4) and the right protective frame (5), each group of the card members (8) is respectively installed in correspondence with a corresponding group of card slots (6), and the fixing plate (3) is provided with a plurality of diodes (2) on the front side of the circuit board (1), a fixing plate (3) is provided with a left protective frame (4) and a right protective frame (5), and each group of the card members (8) is respectively installed in correspondence with a corresponding group of card slots (6). Positioning mechanisms (9) are provided on both sides of the plate (3) and located in front of the circuit board (1), and the positioning mechanism (9) comprises a mounting frame (91), a rotating knob (92) is provided on the side of the mounting frame (91) away from the fixed plate (3), a rotating shaft (93) is provided on the side of the rotating knob (92) close to the fixed plate (3), a gear (94) is provided on the outer ring of the rotating shaft (93), racks (95) are meshed on the upper and lower sides of the gear (94), and a baffle (96) is provided on the bottom surface of one of the racks (95) located on the lower side.

2. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: A fixing groove (10) is provided on the front side of the fixing plate (3) at a position corresponding to each diode (2), and the diode (2) is installed corresponding to the fixing groove (10).

3. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: The right side of the left protective frame (4) is provided with two rectangular grooves, the left side of the right protective frame (5) is provided with two rectangular blocks (11), the rectangular blocks (11) are slidably mounted corresponding to the rectangular grooves, and the top and bottom surfaces of the left protective frame (4) and the right protective frame (5) are provided with a plurality of heat dissipation holes (12).

4. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: The two groups of half retaining rings (7) are respectively located on one side of the two groups of clamping grooves (6) that are close to each other.

5. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: The clamping piece (8) is arranged in an arrow shape, and the clamping piece (8) has elastic deformation capability.

6. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: A cross groove is formed on a side of the rotating knob (92) away from the mounting frame (91).

7. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: One end of the rotating shaft (93) close to the fixing plate (3) is rotatably connected to the fixing plate (3).

8. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: A trapezoidal block (13) is provided on one side of each rack (95) close to the fixed plate (3), and a trapezoidal groove is provided on the left and right sides of the fixed plate (3) at the position corresponding to each rack (95), and the trapezoidal block (13) is slidably connected to the trapezoidal groove.

9. A rectifier bridge for avoiding electrode compression according to claim 1, characterized in that: A sliding groove is provided on a side of each installation frame (91) away from the circuit board (1); the baffle plate (96) is slidably connected to the sliding groove; and the sides of the two baffle plates (96) that are close to each other are respectively in contact with the sides of the left protective frame (4) and the right protective frame (5) that are away from each other.

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