Bridge rectifier

Abstract

The utility model discloses a bridge rectifier, which comprises a body and a seat body, and is characterized in that a dismounting device capable of moving up and down is arranged in the seat body, the seat body is provided with a plurality of leading-out pins, the body is provided with conductive terminals, is inserted into the leading-out pins and presses down the dismounting device, and the top surface of the body is flush with the top surface of the seat body. Elastic sheets are arranged in the lead-out pins and act on the conductive terminals, so that the conductive terminals are fixedly connected with the lead-out pins, and when downward pressure is applied to the dismounting device, the body is pushed to move upwards. According to the utility model, the body can be conveniently plugged into the seat body through the elastic sheet, the elastic sheet is used for ensuring the stable electric connection between the conductive terminals and the lead-out pins, the body is separated from the seat body by pressing the dismounting device, the acting force and friction force of the elastic sheet on the conductive terminals are reduced, dismounting is convenient, dismounting time is saved, and the dismounting efficiency is improved. The product has the advantages of being convenient to disassemble, stable in connection and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifiers, in particular to a bridge rectifier. Background Art

[0002] The bridge rectifier is the most commonly used circuit that uses the unidirectional conductivity of a diode for rectification and is often used to convert alternating current into direct current.

[0003] During use, the existing bridge rectifier is usually electrically connected to the PCB board or the wire by welding. However, it is troublesome, time-consuming and labor-intensive to disassemble and replace it. In addition, the copper holes of the PCB board and the copper foil connected between the copper holes are easily damaged during the disassembly process, or the insulation layer of the wire is damaged. Therefore, the applicant has made a useful design and found a solution to the above problems. The technical solution to be introduced below is produced in this context. Summary of the invention

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned traditional bridge rectifier design and provide a product with convenient disassembly, stable connection and extended service life.

[0005] To solve the above problems, the utility model adopts the following technical solutions.

[0006] A bridge rectifier comprises a main body and a base, wherein a disassembly device which can move up and down is arranged in the base, wherein a plurality of lead pins are arranged in the main body, and a conductive terminal is arranged in the lead pins and presses down the disassembly device, wherein the main body is flush with the top surface of the base, and a spring is arranged in the lead pins and acts on the conductive terminal so that the conductive terminal is connected and fixed to the lead pins, and when downward pressure is applied to the disassembly device, the main body is pushed to move upward.

[0007] Preferably, the base body includes an upper base and a lower base, the upper base is provided with a first concave cavity, the lead-out pin is connected and fixed to the first concave cavity by injection molding, the lead-out pin passes through the lower base, guide holes are provided on both sides of the lower base, through holes are provided on the bottom of both sides of the first concave cavity, through holes are provided on the front and back sides of the first concave cavity, and a plurality of heat dissipation holes are provided on each side of the first concave cavity.

[0008] Preferably, the lower base is provided with a second concave cavity, support blocks and countersunk holes are provided on both sides of the second concave cavity, and the support block is provided with a shaft.

[0009] Preferably, the spring sheet is fixed on one side of the lead-out pin.

[0010] Preferably, the disassembly device includes a transmission arm, a spring, a button, and a top column. The transmission arm is pivotally set on the shaft, the top column is slidably set in the through hole, the top column is provided with a retaining ring, the button is slidably set in the guide hole and abuts one end of the transmission arm, the spring is set in the countersunk hole and abuts the other end of the transmission arm, so that the transmission arm pushes the top column to rise, and the retaining ring abuts the base of the lower base.

[0011] Preferably, an abutment surface is provided at one end of the transmission arm and is located below the top column.

[0012] Beneficial effects:

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model facilitates the plugging and unplugging of the main body into the seat body through the spring sheet, and the function of the spring sheet is to ensure the stable electrical connection between the conductive terminal and the lead pin. Moreover, when the main body is electrically connected to the seat body, the main body is flush with the top of the seat body, which not only protects the main body but also prevents other personnel from pulling out the main body by mistake. The main body only needs to be separated from the seat body for a distance by pressing down the disassembly device, so that the force and friction of the spring sheet on the conductive terminal are reduced, and the main body can be easily plugged and unplugged from the seat body by passing the finger through the through hole, so as to prevent the lead pin from being damaged due to shaking left and right, thereby extending the service life of the seat body, facilitating disassembly, and saving disassembly time, so that the product has the advantages of convenient disassembly, stable connection and extended service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a bridge rectifier of the utility model;

[0016] Figure 2 It is a schematic diagram of the side cross-sectional structure of a bridge rectifier during assembly of the utility model;

[0017] Figure 3 It is a schematic diagram of the side cross-sectional structure of a bridge rectifier of the utility model when it is disassembled;

[0018] Figure 4 It is a schematic diagram of the side cross-sectional structure of a conductive terminal of a bridge rectifier of the utility model;

[0019] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0020] Figure numerals: 1. main body; 2. seat body; 3. disassembly device; 4. spring piece; 11. conductive terminal; 21. lead pin; 22. upper base; 23. lower base; 24. shaft; 221. first concave cavity; 222. guide hole; 223. through hole; 224. through hole; 225. heat dissipation hole; 231. second concave cavity; 232. support block; 233. countersunk hole; 31. transmission arm; 32. spring; 33. button; 34. top column; 311. abutment surface; 341. retaining ring. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0023] In the embodiment of the present invention, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0024] Reference example Figures 1 to 4 A bridge rectifier comprises a body 1 and a base 2. A disassembly device 3 which can move up and down is arranged in the base 2. The base 2 is provided with a plurality of lead pins 21. The body 1 is provided with a conductive terminal 11 which is inserted into the lead pin 21 and presses down the disassembly device 3. The body 1 is flush with the top surface of the base 2. A spring 4 is arranged in the lead pin 21 and acts on the conductive terminal 11 so that the conductive terminal 11 is connected and fixed with the lead pin 21. When downward pressure is applied to the disassembly device 3, the body 1 is pushed to move upward;

[0025] It is worth mentioning that the seat body 2 includes an upper base 22 and a lower base 23. The upper base 22 is provided with a first concave cavity 221. The lead pin 21 is connected and fixed to the first concave cavity 221 by injection molding. The lead pin 21 passes through the lower base 23. Guide holes 222 are provided on both sides of the lower base 23. Through holes 223 are provided at the bottom of both sides of the first concave cavity 221. The front and rear sides of the first concave cavity 221 are provided with perforations 224. Each side of the first concave cavity 221 is provided with a plurality of heat dissipation holes 225. The guide holes 222 provide a guide for the button 33. The through holes 223 facilitate the top column 34 to rise or fall. The perforations 224 facilitate the user to contact the body 1. The heat dissipated by the body 1 is discharged through the heat dissipation holes 225 and heat exchange is performed with the external air.

[0026] It is worth mentioning that the lower base 23 is provided with a second concave cavity 231, and support blocks 232 and countersunk holes 233 are provided on both sides of the second concave cavity 231. The support block 232 is provided with a shaft 24. The second concave cavity 231 provides a storage space for the disassembly device 3, the support block 232 provides support for the shaft 24, and the countersunk hole 233 prevents the spring 32 from being separated from the center of the shaft 24 of the force.

[0027] It is worth mentioning that the spring piece 4 is fixed on one side of the lead pin 21, and the force released by the spring piece 4 is applied to the conductive terminal 11, so that the conductive terminal 11 is pressed against one side of the lead pin 21, and the contact area between the conductive terminal 11 and the lead pin 21 is increased while ensuring the connection stability, thereby improving the current carrying capacity and reducing the contact resistance and heat generation;

[0028] It is worth mentioning that the disassembly device 3 includes a transmission arm 31, a spring 32, a button 33, and a top column 34. The transmission arm 31 is pivotally arranged on the shaft 24, the top column 34 is slidably arranged in the through hole 223, the top column 34 is provided with a retaining ring 341, the button 33 is slidably arranged in the guide hole 222 and abuts against one end of the transmission arm 31, the spring 32 is arranged in the counterbore 233 and abuts against the other end of the transmission arm 31, so that the transmission arm 31 pushes the top column 34 to rise, so that the retaining ring 341 abuts against the base of the lower base 23;

[0029] It is worth mentioning that an abutting surface 311 is provided at one end of the transmission arm 31 and is located below the top column 34 . The abutting surface 311 increases the contact area with the retaining ring 341 , ensuring that the abutting surface 311 provides strong support for the top column 34 .

[0030] The use principle of the utility model is now described as follows:

[0031] Align the conductive terminal 11 of the body 1 with the hole of the lead pin 21, apply downward pressure to the body 1, so that the conductive terminal 11 enters the hole of the lead pin 21, and stretch the spring 4, so that the spring 4 stores energy and releases force to the conductive terminal 11, until the body 1 is flush with the top of the upper base 22, and the connection and fixation of the body 1 and the upper base 22 are completed;

[0032] At the same time, the main body 1 also pushes the top column 34 downward, and the downward movement of the top column 34 pushes the transmission arm 31 to sink together, and the spring 32 stores energy. The transmission force pushes the button 33 to move upward through the transmission arm 31, so that the head of the button 33 maintains a distance from the top of the upper base 22.

[0033] When the body 1 needs to be disassembled, a downward pressure is applied to the button 33 on the upper base 22 at the same time, the button 33 sinks and drives one end of the transmission arm 31 to sink, the spring 32 releases the force, reduces the force required to be applied by the button 33, and quickly pushes the transmission arm 31 upward, as the transmission arm 31 gradually moves upward, the abutting surface 311 is gradually located below the top column 34, and the contact area between the abutting surface 311 and the top column 34 is gradually increased, until the retaining ring 341 abuts against the bottom of the upper base 22, and the transmission arm 31 stops rotating;

[0034] At this time, after the top column 34 makes the main body 1 leave the bottom of the first cavity 221 for a distance, the force and friction of the spring 4 on the conductive terminal 11 are reduced, and the main body 1 is contacted through the through hole 224. By applying an upward pulling force, the main body 1 can be easily pulled out of the first cavity 221, preventing the lead-out pin 21 from being damaged due to shaking left and right, thereby extending the service life of the seat 2.

[0035] The above design scheme can make the product have the advantages of easy disassembly, stable connection and extended service life.

[0036] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A bridge rectifier, comprising a body (1) and a base (2), characterized in that: The seat (2) is provided with a disassembly device (3) that can move up and down. The seat (2) is provided with a plurality of lead pins (21). The main body (1) is provided with a conductive terminal (11) that is inserted into the lead pin (21) and presses down the disassembly device (3). The main body (1) is flush with the top surface of the seat (2). The lead pin (21) is provided with a spring sheet (4) that acts on the conductive terminal (11) so that the conductive terminal (11) and the lead pin (21) are connected and fixed. When downward pressure is applied to the disassembly device (3), the main body (1) is pushed to move upward.

2. The bridge rectifier according to claim 1, characterized in that: The seat body (2) comprises an upper base (22) and a lower base (23); the upper base (22) is provided with a first concave cavity (221); the lead pin (21) is connected and fixed to the first concave cavity (221) by injection molding; the lead pin (21) passes through the lower base (23); guide holes (222) are provided on both sides of the lower base (23); through holes (223) are provided on the bottom of both sides of the first concave cavity (221); through holes (224) are provided on the front and rear sides of the first concave cavity (221); and each side of the first concave cavity (221) is provided with a plurality of heat dissipation holes (225).

3. The bridge rectifier according to claim 2, characterized in that: The lower base (23) is provided with a second concave cavity (231), and support blocks (232) and countersunk holes (233) are provided on both sides of the second concave cavity (231), and the support block (232) is provided with a shaft (24).

4. The bridge rectifier according to claim 1, characterized in that: The spring sheet (4) is fixed on one side of the lead-out pin (21).

5. The bridge rectifier according to claim 3, characterized in that: The disassembly device (3) comprises a transmission arm (31), a spring (32), a button (33), and a top column (34); the transmission arm (31) is pivotally arranged on the shaft (24); the top column (34) is slidably arranged in the through hole (223); the top column (34) is provided with a retaining ring (341); the button (33) is slidably arranged in the guide hole (222) and abuts against one end of the transmission arm (31); the spring (32) is arranged in the countersunk hole (233) and abuts against the other end of the transmission arm (31), so that the transmission arm (31) pushes the top column (34) to rise, so that the retaining ring (341) abuts against the base of the lower base (23).

6. The bridge rectifier according to claim 5, characterized in that: One end of the transmission arm (31) is provided with an abutment surface (311) and is located below the top column (34).

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