Rectifier diode easy to install and fix

Abstract

The utility model discloses a rectifier diode easy to install and fix. The rectifier diode comprises a diode body, a circuit board and pins arranged on the left side and the right side of the diode body. According to the utility model, the connecting plug is inserted into the conductive hole of the circuit board, then the pin of the diode body is inserted into the plugging hole, the two groups of lower clamping pins are extruded through the pin, so that the lower clamping pins are overturned and then abut against the lower wall of the circuit board, and as long as the pin is also inserted into the plugging hole, the connecting plug is fixed with the circuit board through the fixed seat and the two groups of lower clamping pins. The pins are connected with the fixing seat through the upper clamping pins and the clamping grooves, so that fixation is completed, installation is very easy, when dismounting is needed, the upper clamping pins are pushed aside, the pins are pulled out, the diode body can be removed, at the moment, the lower clamping pins lose extrusion of the pins and restore to a rotatable free state, and the two sets of lower clamping pins can rotate to avoid when the connecting plugs are taken out of the conductive holes. Therefore, the diode body is very convenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of rectifier diodes, in particular to a rectifier diode which is easy to install and fix. Background Art

[0002] A rectifier diode is a semiconductor device that converts AC power into DC power. It usually contains a PN junction with two terminals, a positive electrode and a negative electrode. The most important characteristic of a diode is its unidirectional conductivity. In a circuit, current can only flow into the positive electrode of the diode and out of the negative electrode.

[0003] When fixing a rectifier diode on a circuit board, it is usually necessary to insert the pins on it into the through holes on the circuit board and then fix the inserted pins by soldering. Soldering is time-consuming. For this reason, a public technology proposes a rectifier diode; it includes a main body and pins installed at both ends thereof, the vertical section of the pin passes through the conductive hole on the surface of the circuit board, the outer side of the vertical section of the pin is fixedly connected with a chamfer, and an extrusion capsule is provided at the bottom of the main body, and the extrusion capsule is located between the two pins; the public technology states that by providing the extrusion capsule and the chamfer, when the two pins on the main body are inserted into the conductive hole on the circuit board, the extrusion capsule is squeezed and deformed to both sides, the extrusion capsule fits tightly with the main body, can keep the main body warm, and improve the stability of electrical conduction, and at the same time, under the push of the restoring force of the extrusion capsule, the chamfer on the pin is stuck at the bottom of the circuit board, which has a good fixing effect on the pin and improves the stability of the connection, and at the same time, when the extrusion capsule pushes the pin outward, the pin fits tightly with the circuit board, and improves the stability of electrical conduction;

[0004] However, the rectifier diodes for automobiles are usually small in size. It is difficult to set barbs on such small pins and set guide rods between each adjacent barb at the current technological level. Moreover, the barb fixing structure does not take into account the problem of later disassembly and replacement. It is impossible to reach into the back of many motherboards, resulting in the above-mentioned public technology being unable to be disassembled after use. It is not as convenient as direct welding. In order to improve the installation convenience of the rectifier diode, it is necessary to optimize and improve the alignment structure. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a rectifier diode which is easy to install and fix.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rectifier diode that is easy to install and fix, comprising a diode body, a circuit board and pins arranged on the left and right sides of the diode body, two groups of the pins are composed of horizontal sections and vertical sections, the two groups of the horizontal sections of the pins are respectively fixedly connected to the left and right sides of the diode body and the two groups of the vertical sections are respectively arranged on the side of the two groups of the horizontal sections away from the diode body, the two groups of the vertical sections are fixedly connected to the circuit board through a fixing device, the fixing device is composed of a fixing seat and two groups of lower bayonet pins, a plug connector is fixedly connected to the lower wall of the fixing seat, one end of the plug connector away from the fixing seat passes through the circuit board and extends to the lower side of the circuit board, the fixing seat is slidably connected to the circuit board through the plug connector, the fixing seat and the inner wall of the plug connector are jointly provided with a plug hole that passes through from top to bottom, the vertical section of the pin is slidably connected to the inner side wall of the plug hole, the two groups of the lower bayonet pins are rotatably connected to the end of the plug connector extending to the lower side of the circuit board and are arranged relatively front to back, and the pin is fixed to the fixing seat by a clamping structure.

[0007] As a further description of the above technical solution:

[0008] The inner wall of the circuit board is provided with a conductive hole which passes through from top to bottom, and the end of the plug connector away from the fixing seat passes through the inner wall of the conductive hole, and the top projection area of ​​the fixing seat is larger than the top projection area of ​​the conductive hole.

[0009] As a further description of the above technical solution:

[0010] One end of the plug connector extending to the lower side of the circuit board is provided with two groups of mounting grooves distributed front to back, and the two groups of lower latch pins are respectively rotatably connected to the inner side walls of the two groups of mounting grooves through two groups of second rotating pins.

[0011] As a further description of the above technical solution:

[0012] The two groups of lower latches extend toward one end of the plug connector away from the fixed seat in a free state, and the distance between the opposite sides of the two groups of lower latches is smaller than the distance between the front wall and the rear wall of the plug connector. After being squeezed by the pins, the two groups of lower latches rotate 90 degrees in opposite directions along the second rotating pin, and after the rotation, the two opposite sides of the two groups of lower latches in the original free state are tightly pressed against the lower wall of the circuit board.

[0013] As a further description of the above technical solution:

[0014] The clamping structure includes an upper clamping pin and a clamping slot. The upper clamping pin is rotatably connected to the upper wall of the fixing base via a first rotating pin. The first rotating pin is located in the center of the front-to-rear direction of the upper clamping pin. The clamping slot is arranged on the outer wall of the vertical section of the pin and is located on the side away from the diode body. One end of the upper clamping pin located on the rear side of the first rotating pin is slidably connected to the inner wall of the clamping slot.

[0015] As a further description of the above technical solution:

[0016] The upper bayonet and the fixing seat are fixed in position by a torsion spring, and the upper bayonet is kept in a length direction perpendicular to the left-right direction of the fixing seat by the torsion spring.

[0017] The utility model has the following beneficial effects:

[0018] Compared with the prior art, the rectifier diode which is easy to install and fix is ​​to insert the plug connector into the conductive hole of the circuit board, and then insert the pin of the diode body into the plug-in hole, and the pin squeezes the two groups of lower snap pins to make the lower snap pins flip and abut against the lower wall of the circuit board. As long as the pin is still inserted in the plug-in hole, the plug connector is fixed to the circuit board through the fixing seat and the two groups of lower snap pins, and then the pin is connected to the fixing seat through the upper snap pin and the slot, and the fixation is completed. The installation is very easy. When it needs to be removed, the diode body can be removed by pushing open the upper snap pin and pulling out the pin. At this time, the lower snap pin loses the squeezing of the pin and returns to a rotatable free state. When the plug connector is taken out of the conductive hole, the two groups of lower snap pins can be rotated to avoid, and the plug connector will not be stuck, making it very convenient to replace the diode body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a rectifier diode that is easy to install and fix, proposed by the utility model;

[0020] Figure 2 The utility model provides a rectifier diode which is easy to install and fix. Figure 1 A partial enlarged view of the middle A;

[0021] Figure 3 A schematic diagram of a partial cross-section of a pin vertical section, a circuit board, a fixing seat, a plug connector and a lower latch of a rectifier diode that is easy to install and fix, proposed by the utility model;

[0022] Figure 4 It is a partial cross-sectional side view of a fixing seat, a plug connector and a lower bayonet pin connection structure of a rectifier diode that is easy to install and fix, which is provided by the utility model and in a free state of the lower bayonet pin;

[0023] Figure 5 The utility model provides a front schematic diagram of a lower bayonet free state fixing seat, a plug connector and a lower bayonet connection structure of a rectifier diode which is easy to install and fix.

[0024] Legend:

[0025] 1. Diode body; 2. Circuit board; 3. Pin; 4. Fixing seat; 5. First rotating pin; 6. Upper locking pin; 7. Slot; 8. Plug connector; 9. Mounting slot; 10. Second rotating pin; 11. Lower locking pin; 12. Plug hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] Reference Figures 1 to 5 The utility model provides a rectifier diode that is easy to install and fix: it includes a diode body 1, a circuit board 2 and pins 3 arranged on the left and right sides of the diode body 1, the two groups of pins 3 are composed of horizontal sections and vertical sections, the two groups of horizontal sections of the pins 3 are respectively fixedly connected to the left and right sides of the diode body 1 and the two groups of vertical sections are respectively arranged on the side of the two groups of horizontal sections away from the diode body 1, the two groups of vertical sections are fixedly connected to the circuit board 2 through a fixing device, the fixing device is composed of a fixing seat 4 and two groups of lower bayonet pins 11, the lower wall of the fixing seat 4 is fixedly connected with a plug connector 8, the end of the plug connector 8 away from the fixing seat 4 passes through the circuit board 2 and extends to the lower side of the circuit board 2, the fixing seat 4 is slidably connected to the circuit board 2 through the plug connector 8, the inner wall of the circuit board 2 is provided with a conductive hole that passes through from top to bottom, the end of the plug connector 8 away from the fixing seat 4 passes through the inner side wall of the conductive hole, the lower area of ​​the fixing seat 4 when viewed from above is larger than the area of ​​the conductive hole when viewed from above, the plug connector 8 is limited downward by the fixing seat 4, and after the lower wall of the fixing seat 4 abuts against the upper wall of the circuit board 2, the plug connector 8 cannot continue to move downward;

[0028] like Figure 2 , Figure 3 as well as Figure 4 As shown, in order to facilitate the insertion of the pin 3, the inner walls of the fixing seat 4 and the plug connector 8 are jointly provided with a plug hole 12 which is through from top to bottom, and the vertical section of the pin 3 is slidably connected with the inner wall of the plug hole 12. The fixing seat 4 and the plug connector 8 are both conductive materials available on the market. After the pin 3 is inserted into the plug hole 12, it can be electrically connected to the conductive hole of the circuit board 2 through the fixing seat 4 and the plug connector 8. The installation efficiency is improved by fixing by inserting the pin 3;

[0029] like Figure 3 , Figure 4 as well as Figure 5As shown, in order to fix the lower end of the plug connector 8 to the circuit board 2, the two groups of lower bayonet pins 11 are rotatably connected to the end of the plug connector 8 extending to the lower side of the circuit board 2 and are arranged front to back oppositely. The end of the plug connector 8 extending to the lower side of the circuit board 2 is provided with two groups of mounting grooves 9 distributed front to back. The two groups of lower bayonet pins 11 are rotatably connected to the inner side walls of the two groups of mounting grooves 9 through two groups of second rotating pins 10. In the free state, the two groups of lower bayonet pins 11 extend toward the end of the plug connector 8 away from the fixing seat 4, and the distance between the opposite sides of the two groups of lower bayonet pins 11 is less than the distance between the front wall and the rear wall of the plug connector 8. After being squeezed by the pins 3, the two groups of lower bayonet pins 11 move in opposite directions along the second rotating pins 10 The two sets of lower bayonet pins 11 are rotated 90 degrees and after the rotation, the two sides of the two sets of lower bayonet pins 11 in the original free state that are opposite to each other are pressed against the lower wall of the circuit board 2. After the pin 3 is inserted into the plug hole 12, the two sets of lower bayonet pins 11 are squeezed to rotate in opposite directions. After flipping, the two sides of the two sets of lower bayonet pins 11 in the original free state that are opposite to each other are pressed against the lower wall of the circuit board 2, and the upper ends of the two sets of lower bayonet pins 11 in the original free state are pressed against the front wall and the rear wall of the pin 3 respectively. As long as the pin 3 is not pulled out of the plug hole 12, the plug connector 8 can be fixed to the circuit board 2 through the two sets of lower bayonet pins 11 and the fixing seat 4. When the lower bayonet pins 11 are in the free state, the plug connector 8 can be easily inserted and pulled out from the conductive hole without interference.

[0030] like Figure 1 , Figure 2 as well as Figure 3 When the upper latch 6 is engaged with the upper retainer 4, the upper retainer 4 is in a state of being locked and fastened to the fixing seat 4, and the locking structure includes an upper latch pin 6 and a locking groove 7. The upper latch pin 6 is rotatably connected to the upper wall of the fixing seat 4 through a first rotating pin 5. The first rotating pin 5 is located at the center of the upper latch pin 6 in the front-rear direction. The locking groove 7 is arranged on the outer wall of the vertical section of the pin 3 and is located on the side away from the diode body 1. One end of the upper latch pin 6 located at the rear side of the first rotating pin 5 is slidably connected to the inner wall of the locking groove 7 of the upper latch pin 6 and the fixing seat 4 through a torsion spring. The upper latch pin 6 is kept in a position perpendicular to the left and right direction of the fixing seat 4 through the torsion spring. The torsion spring is a common technology on the market. It can be wound around the outer wall of the first rotating pin 5 and connected to the fixing seat 4 and the upper latch pin 6 respectively through the two extending arms of the torsion spring. When the upper latch pin 6 is engaged with the locking groove 7, the torsion spring can maintain the engaged state to avoid the vibration generated during use causing the upper latch pin 6 to separate from the locking groove 7. After the upper latch pin 6 is engaged with the locking groove 7, the pin 3 is fixed to the fixing seat 4.

[0031] Working principle: the plug connector 8 is limited downward by the fixing seat 4. After the lower wall of the fixing seat 4 abuts against the upper wall of the circuit board 2, the plug connector 8 cannot move downward any further. The fixing seat 4 and the plug connector 8 are both conductive materials available on the market. After the pin 3 is inserted into the plug hole 12, it can be electrically connected to the conductive hole of the circuit board 2 through the fixing seat 4 and the plug connector 8. The installation efficiency is improved by fixing by inserting the pin 3. After the pin 3 is inserted into the plug hole 12, the two groups of lower bayonet pins 11 are squeezed to rotate in opposite directions. After flipping, the opposite sides of the two groups of lower bayonet pins 11 in the original free state are tightly against the lower wall of the circuit board 2 and the upper ends of the two groups of lower bayonet pins 11 in the original free state are respectively It is tightly pressed against the front and rear walls of the pin 3. As long as the pin 3 is not pulled out of the plug hole 12, the plug connector 8 can be fixed together with the circuit board 2 through the two sets of lower latch pins 11 and the fixing seat 4. When the lower latch pins 11 are in a free state, the plug connector 8 can be easily inserted and pulled out from the conductive hole without interference. The torsion spring is a common technology on the market. It can be wrapped around the outer wall of the first rotating pin 5 and connected to the fixing seat 4 and the upper latch pin 6 respectively through the two extending arms of the torsion spring. When the upper latch pin 6 is inserted into the slot 7, the torsion spring can maintain the engaged state to avoid the vibration generated during use causing the upper latch pin 6 to separate from the slot 7. After the upper latch pin 6 is inserted into the slot 7, the pin 3 is fixed to the fixing seat 4.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rectifier diode that is easy to install and fix, characterized in that: The invention comprises a diode body (1), a circuit board (2), and pins (3) arranged on the left and right sides of the diode body (1), wherein two groups of the pins (3) are composed of horizontal sections and vertical sections, the horizontal sections of the two groups of the pins (3) are respectively fixedly connected to the left and right sides of the diode body (1), and the two groups of vertical sections are respectively arranged on the side of the two groups of horizontal sections away from the diode body (1), and the two groups of vertical sections are fixedly connected to the circuit board (2) through a fixing device, wherein the fixing device is composed of a fixing seat (4) and two groups of lower latching pins (11), and the lower wall of the fixing seat (4) is fixedly connected with a plug connector (8), and the plug connector (8) is fixedly connected to the lower wall of the fixing seat (4). One end of the connector (8) away from the fixing seat (4) passes through the circuit board (2) and extends to the lower side of the circuit board (2); the fixing seat (4) is slidably connected to the circuit board (2) through the plug connector (8); the fixing seat (4) and the inner wall of the plug connector (8) are jointly provided with a plug hole (12) which passes through from top to bottom; the vertical section of the pin (3) is slidably connected to the inner wall of the plug hole (12); the two groups of lower latch pins (11) are both rotatably connected to one end of the plug connector (8) extending to the lower side of the circuit board (2) and are arranged front to back oppositely; the pin (3) and the fixing seat (4) are fixed by a clamping structure.

2. The rectifier diode that is easy to install and fix according to claim 1 is characterized in that: The inner wall of the circuit board (2) is provided with a conductive hole which passes through from top to bottom, and the end of the plug connector (8) which is away from the fixing seat (4) passes through the inner wall of the conductive hole, and the top projection area of ​​the fixing seat (4) is larger than the top projection area of ​​the conductive hole.

3. The rectifier diode that is easy to install and fix according to claim 2 is characterized in that: One end of the plug connector (8) extending to the lower side of the circuit board (2) is provided with two groups of mounting grooves (9) distributed front to back, and the two groups of lower latch pins (11) are rotatably connected to the inner side walls of the two groups of mounting grooves (9) through two groups of second rotating pins (10).

4. The rectifier diode that is easy to install and fix according to claim 3 is characterized in that: The two groups of lower latch pins (11) extend toward one end of the plug connector (8) away from the fixing seat (4) in a free state, and the distance between the opposite sides of the two groups of lower latch pins (11) is smaller than the distance between the front wall and the rear wall of the plug connector (8). After being squeezed by the pins (3), the two groups of lower latch pins (11) rotate 90 degrees in opposite directions along the second rotation pin (10), and after the rotation, the two opposite sides of the two groups of lower latch pins (11) in the original free state are tightly pressed against the lower wall of the circuit board (2).

5. The rectifier diode that is easy to install and fix according to claim 4 is characterized in that: The clamping structure comprises an upper clamping pin (6) and a clamping slot (7); the upper clamping pin (6) is rotatably connected to the upper wall of the fixing seat (4) via a first rotating pin (5); the first rotating pin (5) is located in the middle of the upper clamping pin (6) in the front-rear direction; the clamping slot (7) is arranged on the outer wall of the vertical section of the pin (3) and is located on a side away from the diode body (1); and one end of the upper clamping pin (6) located on the rear side of the first rotating pin (5) is slidably connected to the inner wall of the clamping slot (7).

6. The rectifier diode that is easy to install and fix according to claim 5, characterized in that: The upper retaining pin (6) and the fixing seat (4) are fixed in position by a torsion spring, and the upper retaining pin (6) is kept perpendicular to the left-right direction of the fixing seat (4) by the torsion spring in the length direction of the upper retaining pin (6).

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