CN217486395U - Bridge rectifier - Google Patents

Abstract

The utility model discloses a bridge rectifier, which comprises a housin, rectification chip unit and conductive insert piece, the last fixed surface of casing installs the position sleeve, slidable mounting has the top cap in the position sleeve, the upper surface of top cap is equipped with binding post, the cooperation of pegging graft on binding post lower extreme and the conductive insert piece, be equipped with annular groove and annular groove down on the inner wall of position sleeve, it has first elastic seal circle and second elastic seal circle to go up annular groove and annular groove interior difference fixed mounting down, be equipped with annular positioning groove on the lateral wall of top cap, the upper surface symmetry of top cap rotates installs the handle, be equipped with detachable buckle fixed knot between handle and the position sleeve and construct. This bridge rectifier's top cap realizes sealed cooperation through annular positioning groove and first elastic sealing ring or second elastic sealing ring at the in-process that reciprocates, and the leakproofness and the fastness between top cap and the position sleeve are stronger, have solved the dust and have got into the problem that leads to contact failure in the top cap easily.

Description

Bridge rectifier

Technical Field

The utility model relates to a bridge rectifier equipment technical field especially relates to a bridge rectifier.

Background

The bridge rectifier is formed by bridge connection of four rectifier silicon chips and packaging of external insulating plastics, a zinc metal shell is added outside an insulating layer of the high-power bridge rectifier for encapsulation so as to enhance heat dissipation, the bridge rectifier is generally used in a full-wave rectifier circuit and is divided into a full bridge and a half bridge, the half bridge seals half parts of two diode bridge rectifiers together, the double half bridges can form a bridge rectifier circuit, the single half bridge can also form a full-wave rectifier circuit of a transformer center tap, and the full bridge is formed by connecting and packaging four rectifier diodes into a whole according to the form of the bridge full-wave rectifier circuit.

The chinese patent with the reference number CN202022236012.8 discloses a bridge rectifier, which comprises an installation plate, wherein a casing is fixedly installed in the middle of the upper surface of the installation plate, heat dissipation grooves are symmetrically formed in the outer wall of the casing, an insulation plate is fixedly installed on the inner upper surface of the casing, an insulation cover is movably installed at the top of the inner wall of the insulation plate, through holes are symmetrically formed in the upper surface of the insulation cover, a rectifier chip is fixedly installed in the middle of the upper surface of the insulation plate, and the upper surface of the rectifier chip is symmetrically and movably connected with a conductive block. This bridge rectifier sets up the position sleeve through the upper surface at the casing, and the top cap passes through the cooperation of constant head tank, spring, cardboard and gyro wheel, realizes reciprocating along the inner wall of position sleeve to drive conducting strip and junction block and reciprocate, after the conducting strip contacts with the contact piece of below, realize carrying the operation to the electric current of rectifier chip, can effectually avoid carrying out direct wiring to the conducting strip, effectively prevent the damage that frequent wiring maintenance caused. Spacing about realizing through constant head tank and gyro wheel when this bridge rectifier's top cap reciprocates, the structure is complicated, makes inconveniently, and the leakproofness between top cap and the position sleeve is poor moreover, and in external moisture and the dust got into the top cap easily, lead to the conducting strip and connect the electric leakage or the contact failure of electric plate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a bridge rectifier, leakproofness and fastness between reinforcing top cap and the position sleeve.

The utility model provides a technical scheme that its technical problem adopted: a bridge rectifier comprises a shell, a rectifier chip unit is fixedly arranged in the shell, a conductive insert is arranged on the rectifier chip unit, the upper surface of the shell is fixedly provided with a positioning sleeve, a top cover is arranged in the positioning sleeve in a sliding way, the upper surface of the top cover is provided with a wiring terminal, the lower end of the wiring terminal is in inserted fit with the upper end of the conductive insert, an upper annular groove and a lower annular groove are arranged on the inner wall of the positioning sleeve, a first elastic sealing ring and a second elastic sealing ring are respectively and fixedly arranged in the upper annular groove and the lower annular groove, an annular positioning groove is arranged on the outer side wall of the top cover, in the process of moving the top cover up and down, the annular positioning groove is in sealing fit with the first elastic sealing ring or the second elastic sealing ring, the upper surface of the top cover is symmetrically and rotatably provided with a handle, and a detachable buckle fixing structure is arranged between the handle and the positioning sleeve.

In order to further improve, the buckle fixing structure comprises an elastic buckle belt and a hook, one end of the elastic buckle belt is fixedly connected with the handle, the other end of the elastic buckle belt is provided with a hanging ring, the hook is fixedly installed on the outer wall of the positioning sleeve, and the hook is in clamping fit with the hanging ring.

Further perfect, be equipped with insulating box body between casing and the rectification chip unit, be equipped with the conducting strip on the outer wall of insulating box body, the heat dissipation slot has been seted up to the outer wall symmetry of casing, installs the heat dissipation inserted sheet on the heat dissipation slot, heat dissipation inserted sheet and conducting strip fixed connection.

Further perfect, be equipped with the baffle on the top cap inner wall between adjacent binding post.

Further perfect, the upper surface of insulating box body is equipped with keeps apart the guide slot, keeps apart the guide slot and is located between the adjacent conductive insert piece, keep apart guide slot and baffle sliding connection.

Compared with the prior art, the utility model discloses profitable effect is: this bridge rectifier sets up the position sleeve through the upper surface at the casing, and the top cap realizes sealed cooperation through annular positioning groove and first elastic sealing circle or second elastic sealing circle at the in-process that reciprocates, and the leakproofness and the fastness between top cap and the position sleeve are stronger, have solved the dust and have got into the problem that leads to contact failure in the top cap easily, simple structure, and it is convenient to make, rotates on the top cap and installs the handle, can conveniently stimulate the top cap and shift up. The top cap drives binding post and reciprocates, and after binding post and the electrically conductive inserted sheet contact of below, the realization was carried the operation to the electric current of rectifier chip unit, can effectively prevent the damage that frequent wiring maintenance caused.

Drawings

FIG. 1 is a schematic view of the present invention;

description of the reference numerals: 1. the casing, 2, rectification chip unit, 3, electrically conductive inserted sheet, 4, position sleeve, 5, top cap, 6, binding post, 7, go up annular groove, 8, lower annular groove, 9, first elastic sealing ring, 10, second elastic sealing ring, 11, annular positioning groove, 12, handle, 13, elastic buckle area, 14, couple, 15, link, 16, insulating box body, 17, conducting strip, 18, heat dissipation slot, 19, heat dissipation inserted sheet, 20, baffle, 21, keep apart the guide slot.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figure 1: the embodiment of the invention relates to a bridge rectifier, which comprises a shell 1, wherein a rectifier chip unit 2 is fixedly installed inside the shell 1, a conductive insertion piece 3 is arranged on the rectifier chip unit 2, a positioning sleeve 4 is fixedly installed on the upper surface of the shell 1, a top cover 5 is slidably installed in the positioning sleeve 4, a wiring terminal 6 is arranged on the upper surface of the top cover 5, the lower end of the wiring terminal 6 is in insertion fit with the upper end of the conductive insertion piece 3, an upper annular groove 7 and a lower annular groove 8 are formed in the inner wall of the positioning sleeve 4, a first elastic sealing ring 9 and a second elastic sealing ring 10 are respectively and fixedly installed in the upper annular groove 7 and the lower annular groove 8, an annular positioning groove 11 is formed in the outer side wall of the top cover 5, and in the up-and-down movement process of the top cover 5, the annular positioning groove 11 is in sealing fit with the first elastic sealing ring 9 or the second elastic sealing ring 10, the upper surface of the top cover 5 is symmetrically and rotatably provided with a handle 12, and a detachable buckle fixing structure is arranged between the handle 12 and the positioning sleeve 4.

The working principle is as follows: when in use, the shell 1 of the rectifier is fixedly arranged on frequency conversion equipment, after the installation is finished, the alternating current electric wire and the direct current electric wire to be converted are respectively fixedly arranged on the corresponding wiring terminals 6, after the fixation is finished, the top cover 5 is pressed downwards, when the top cover 5 moves downwards, the annular positioning groove 11 and the first elastic sealing ring 9 are in concave-convex sealing fit, so that the primary positioning of the top cover 5 is realized, the top cover 5 is pressed downwards again, so that the wiring terminals 6 are driven to move downwards, the annular positioning groove 11 and the second elastic sealing ring 10 are in concave-convex fit, the first elastic sealing ring 9 and the top cover 5 are in sliding sealing fit, the sealing property and the firmness between the top cover 5 and the positioning sleeve 4 can be enhanced, the problem that dust easily enters the top cover to cause poor contact is solved, when the wiring terminals 6 are in inserting fit with the conductive inserting sheets 3 below, the circuit of the rectifier chip unit 2 is switched on, can effectively prevent the damage that frequent wiring maintenance caused, carry out fixed connection through buckle structure and position sleeve 4 after 12 folding handles, can further improve the fastness of assembly, better promotion the safety in utilization of rectifier.

The buckle fixing structure comprises an elastic buckle belt 13 and a hook 14, one end of the elastic buckle belt 13 is fixedly connected with the handle 12, the other end of the elastic buckle belt 13 is provided with a hanging ring 15, the hook 14 is fixedly installed on the outer wall of the positioning sleeve 4, and the hook 14 is in clamping fit with the hanging ring 15. The handle 12 is elastically connected with the positioning sleeve 4 through the elastic buckle belt 13, so that the top cover 5 and the positioning sleeve 4 are combined more tightly and are not easy to loose due to vibration.

Be equipped with insulating box body 16 between casing 1 and the rectification chip unit 2, can the insulating effect of effectual reinforcing rectifier, be equipped with conducting strip 17 on insulating box body 16's the outer wall, heat dissipation slot 18 has been seted up to casing 1's outer wall symmetry, installs heat dissipation inserted sheet 19 on the heat dissipation slot 18, heat dissipation inserted sheet 19 and conducting strip 17 fixed connection. The heat conducting fins 17 can conduct the heat of the insulating box body 16 to the heat dissipation inserting pieces 19 to dissipate heat quickly, and heat dissipation performance of the rectifier during working is improved better.

Be equipped with baffle 20 on the 5 inner walls of top cap between adjacent binding post 6, can improve insulating properties and heat-proof quality between adjacent binding post 6, avoid causing the electric breakdown.

The upper surface of insulating box body 16 is equipped with keeps apart guide slot 21, keeps apart guide slot 21 and is located between the adjacent conductive insertion piece 3, keep apart guide slot 21 and 20 sliding connection of baffle, can improve the stability that top cap 5 reciprocated, improve binding post 6 and the 3 accuracy of grafting complex of conductive insertion piece.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (5)

1. The utility model provides a bridge rectifier, includes casing (1), and the inside fixed mounting of casing (1) has rectification chip unit (2), is equipped with electrically conductive inserted sheet (3) on rectification chip unit (2), the last fixed surface of casing (1) installs position sleeve (4), slidable mounting has top cap (5) in position sleeve (4), the upper surface of top cap (5) is equipped with binding post (6), and binding post (6) lower extreme and electrically conductive inserted sheet (3) upper end are pegged graft and are cooperated, its characterized in that: be equipped with annular groove (7) and lower annular groove (8) on the inner wall of position sleeve (4), go up annular groove (7) and down in annular groove (8) respectively fixed mounting have first elastic seal circle (9) and second elastic seal circle (10), be equipped with annular positioning groove (11) on the lateral wall of top cap (5), at the in-process that top cap (5) reciprocated, sealed cooperation is realized with first elastic seal circle (9) or second elastic seal circle (10) in annular positioning groove (11), handle (12) are installed in the upper surface symmetry rotation of top cap (5), are equipped with detachable buckle fixed knot and construct between handle (12) and position sleeve (4).

2. A bridge rectifier as set forth in claim 1 wherein: buckle fixed knot constructs including elasticity detain area (13) and couple (14), elasticity detains the one end and handle (12) fixed connection of area (13), the other end that elasticity detained area (13) is equipped with link (15), couple (14) fixed mounting is on the outer wall of position sleeve (4), couple (14) and link (15) joint cooperation.

3. A bridge rectifier as set forth in claim 1 wherein: be equipped with insulating box body (16) between casing (1) and rectification chip unit (2), be equipped with conducting strip (17) on the outer wall of insulating box body (16), heat dissipation slot (18) have been seted up to the outer wall symmetry of casing (1), install heat dissipation inserted sheet (19) on heat dissipation slot (18), heat dissipation inserted sheet (19) and conducting strip (17) fixed connection.

4. A bridge rectifier as set forth in claim 3 wherein: and a partition plate (20) is arranged between the adjacent wiring terminals (6) on the inner wall of the top cover (5).

5. A bridge rectifier as set forth in claim 4 wherein: the upper surface of insulating box body (16) is equipped with keeps apart guide slot (21), keeps apart guide slot (21) and is located between adjacent conductive insert piece (3), keep apart guide slot (21) and baffle (20) sliding connection.

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