CN219245617U

CN219245617U - Replacement welded contact pin structure

Info

Publication number: CN219245617U
Application number: CN202320289906.4U
Authority: CN
Inventors: 雷红勇
Original assignee: Beijing Shitemei Measurement And Control Technology Co ltd
Current assignee: Beijing Shitemei Measurement And Control Technology Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-23
Anticipated expiration: 2033-02-17

Abstract

The application relates to a replacement welded contact pin structure, including contact pin, hall element and circuit board, circuit board and hall element fixed connection, the contact pin is pegged graft in the spliced groove, and the spliced groove sets up on the circuit board, and the contact pin is connected with the hall element electricity, and the inner wall of spliced groove has elasticity, and the inner wall of spliced groove and the contact pin's of contact pin plug interference fit, and the contact pin is used for supplying outside wire electricity to be connected. Still including magnetic core, checkpost and shell, the magnetic core sets up inside the shell, checkpost and magnetic core fixed connection, and the magnetic core passes through the checkpost with the circuit board and can dismantle the connection. The utility model provides a welding process to the spliced groove among the prior art scheme has been saved to this application, and prior art's welding cost is high, and efficiency is also poor, adopts the contact pin structure of this scheme, can use the mode preparation contact pin of industrial assembly line, compares and welds the process, and its cost is lower, and efficiency is higher, and follow-up automation equipment is also more convenient.

Description

Replacement welded contact pin structure

Technical Field

The application relates to the field of Hall components, in particular to a contact pin structure for replacement welding.

Background

The Hall sensor is designed based on the Hall effect, has simple structure, good reliability and strong overload capacity, and has been successfully used in the fields of automation, detection, information processing and the like. The voltage value output by the Hall current sensor changes along with the change of the magnetic field intensity, when the magnetic field is weaker, the Hall voltage value is very small, usually only a few millivolts, and the output voltage can be increased by adopting the programmable linear Hall voltage, so that the output signal is stronger.

For the related art, the programmable hall element is received on the circuit board of the hall sensor, the circuit board is further provided with pins, the user needs to weld the external wires on the pins, the welding efficiency of the prior art is poor, the follow-up assembly process automation can be affected after direct welding, and the defect of low efficiency exists.

Disclosure of Invention

In order to improve production efficiency, the application provides a replacement welded contact pin structure.

The application provides a replacement welded contact pin structure adopts following technical scheme:

the utility model provides a replacement welded contact pin structure, includes contact pin, hall element and circuit board, circuit board and hall element fixed connection, the contact pin is pegged graft in the grafting inslot, the grafting inslot sets up on the circuit board, the contact pin is connected with the hall element electricity, the inner wall of grafting inslot has elasticity, the inner wall of grafting inslot and the plug interference fit of contact pin, the contact pin is used for supplying outside wire electricity to be connected.

Through adopting above-mentioned technical scheme, this application has saved the welding process to the spliced groove among the prior art scheme, and prior art's welding cost is high, and is efficient also poor, adopts the contact pin structure of this scheme, can use the mode preparation contact pin of industrialization assembly line, and the contrast welds the process, and its cost is lower, and efficiency is higher, and it is also more convenient to follow-up automatic equipment.

Preferably, the method further comprises: the magnetic core, checkpost and shell, the magnetic core sets up inside the shell, checkpost and magnetic core fixed connection, the magnetic core passes through the checkpost with the circuit board and can dismantle the connection.

Through adopting above-mentioned technical scheme, the protection level of sensor can be improved to the shell, reduces external environment to sensor performance and life's influence, and the shell still has the effect of protecting against shock simultaneously, checkpost and magnetic core fixed connection, and the magnetic core passes through the checkpost with the circuit board and can dismantle the connection, also makes the inside more stable of sensor, is difficult for moving the position.

Preferably, the pins are provided with four slots corresponding to the circuit board, and the four pins are respectively and electrically connected to the positive terminal, the grounding terminal, the signal output terminal and the reference voltage output terminal of the hall element.

By adopting the technical scheme, the four contact pins are connected to the four inserting grooves in an inserting way, and correspond to the four outputs of the Hall element respectively, so that the external lead and the Hall element are electrified.

Preferably, the pin comprises a plug connector, and the top end of the plug connector is pointed.

By adopting the technical scheme, the head of the plug connector is pointed, and the contact area between the head of the plug connector and the plug groove is small, so that the plug connector can be inserted into the plug groove more easily.

Preferably, the contact pin further comprises a middle structure, wherein the middle structure is fixedly provided with an anti-falling convex part, and the anti-falling convex part is embedded into the shell so that the contact pin is not easy to separate from the connecting hole.

By adopting the technical scheme, the anti-falling convex part is clamped with the groove in the connecting hole of the shell, so that the contact pin is not easy to fall off after being inserted.

Preferably, the anti-drop convex parts are arranged at intervals along the length direction of the contact pin.

Through adopting above-mentioned technical scheme, set up a plurality of anticreep convex parts, further reduce the probability of coming off.

Preferably, the pins are made of hard metal.

Through adopting above-mentioned technical scheme, the contact pin has good conductivity that sends out, can realize the circulation of electric current, simultaneously, because the material of contact pin is hard metal, difficult deformation, so its fixed effect is better.

Preferably, the clip is provided with a groove and a clamping groove, the groove is communicated with the gap of the magnetic core, the groove wall of the groove is used for clamping the magnetic core, the clamping groove penetrates through two side walls of the groove, and the groove wall of the clamping groove is used for clamping the circuit board.

Through adopting above-mentioned technical scheme, recess joint magnetic core, joint groove joint circuit board for hall element can be stably placed in magnetic core air gap intermediate position, in order to reduce hall element's the possibility of taking place the off normal, protection hall element simultaneously.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the welding process of the plugging groove in the prior art is omitted, the welding cost of the prior art is high, the efficiency is poor, the pin structure of the scheme can be used for manufacturing pins in an industrial assembly line mode, compared with the welding process, the cost is lower, the efficiency is higher, and the subsequent automatic assembly is more convenient;

2. the contact pin has good electrical conductivity, can realize the current circulation, and meanwhile, as the contact pin is made of hard metal and is not easy to deform, the fixing effect is better;

3. the head of the plug connector is pointed, and the contact area between the head of the plug connector and the plug groove is small, so that the plug connector can be inserted into the plug groove more easily.

Drawings

FIG. 1 is an exploded view of an alternative welded pin structure according to an embodiment of the present application;

FIG. 2 is a schematic view of the structure of a pin according to an embodiment of the present application;

fig. 3 is a schematic structural view of a clip according to an embodiment of the present application.

Reference numerals illustrate: 1. a contact pin; 11. a plug; 12. a middle structure; 13. a needle tail; 2. a Hall element; 3. a circuit board; 4. a magnetic core; 5. a clip; 51. a groove; 52. a clamping groove; 6. a housing; 61. and a connection hole.

Detailed Description

The embodiment of the application discloses a replacement welding contact pin structure. Referring to fig. 1, includes a pin 1, a circuit board 3, and a hall element 2.

Specifically, the hall element 2 is fixedly connected with the circuit board 3, the contact pin 1 is inserted into an insertion groove arranged on the circuit board 3, the groove wall of the insertion groove is made of elastic metal, the elastic metal can be tin or copper alloy, the inner wall of the insertion groove is electrically connected with the hall element 2, the inner wall of the insertion groove is in interference fit with the insertion head 11 of the contact pin 1, and the contact pin 1 is used for being electrically connected with the hall element 2 by an external lead.

The contact pin 1 is a core element of the present embodiment, and is an improved element made by replacing a welding process, where the contact pin 1 includes a contact pin 11, a middle structure 12 and a pin tail 13, and the contact pin 11, the middle structure 12 and the pin tail 13 are integrally formed.

The top of the plug 11 of the contact pin 1 is pointed, the cross section area of the plug 11 gradually reduces towards the outer end, the outer side wall of the plug 11 is abutted against the groove wall of the plug groove to enable the plug 11 to be in interference fit with the plug groove, elastic deformation is generated on the inner wall of the plug groove to generate acting force, the plug groove is in contact with the plug 11, and the acting force enables the contact pin 1 to be tightly connected with the plug groove, so that the fixing effect is achieved.

Two anti-drop convex parts are symmetrically arranged on two sides of the middle structure 12 of the contact pin 1 respectively, and the width dimension of each anti-drop convex part is gradually reduced towards the direction close to the contact pin 11. When the contact pin 1 is inserted into the insertion groove, the contact pin 1 is easy to be inserted into the insertion groove because of the inclined guiding function of the anti-falling convex part and the small force required in the process of inserting the contact pin 1 into the insertion groove; when the pin 1 is to be pulled out of the insertion groove, the side wall of the anti-drop protrusion facing away from the insertion head 11 abuts against the inner wall of the connection hole 61 provided in the housing 6, thereby preventing the pin 1 from being pulled out.

The four inserting grooves of the inserting needle 1 corresponding to the circuit board 3 are arranged, and the groove walls of the four inserting grooves are respectively and electrically connected with the positive electrode end, the grounding end, the signal output end and the reference voltage output end of the Hall element 2. The contact pin structure is used for a sensor, and when a user uses the sensor, an external lead needs to be connected with the contact pin 1 to realize circuit circulation.

The pin 1 is made of a hard metal, for example, a metal material such as copper or iron. The pin 1 passes through the housing 6 to electrically connect the external leads with the inner wall of the socket. Because the contact pin 1 can adopt the manufacturing mode of the industrial assembly line, the sensor adopting the application has shorter manufacturing time and lower cost compared with the sensor adopting the traditional welding process mode.

In this embodiment, the hall element 2 may be a programmable linear hall element, which is a single linear output general magnetic field element based on the hall effect.

In addition, the replacement welded pin structure further comprises: magnetic core 4, checkpost 5 and shell 6, magnetic core 4 fixed mounting is inside shell 6, and checkpost 5 and magnetic core 4 fixed connection, circuit board 3 joint are on checkpost 5, and magnetic core 4 passes through checkpost 5 detachable connection with hall element 2.

Specifically, the clip 5 is provided with a groove 51, the cross section of the clip 5 is in a U shape, and inner walls of two opposite sides of the groove 51 are used for abutting against outer side walls of the magnetic core 4 so as to clamp the magnetic core 4. The clamp 5 is also provided with a clamping groove 52, the groove wall of the clamping groove 52 is abutted with two side walls of the circuit board 3, the circuit board 3 is clamped on the clamp 5, the clamping groove 52 is arranged on two sides of the clamp 5 in a penetrating mode, the Hall element 2 can penetrate through the clamping groove 52, the clamping groove 52 is communicated with the air gap of the magnetic core 4, and the Hall element 2 fixedly connected to the circuit board 3 is located in the air gap of the magnetic core 4. The clip 5 is made of an elastic material, which may be plastic or copper alloy.

The housing 6 is provided with connection holes 61, and the connection holes 61 are positioned opposite to the four insertion grooves of the circuit board 3. Four grooves 51 are formed in the connecting hole 61, and the anti-falling protrusions of the pins 1 are embedded into the grooves 51, so that the pins 1 are tightly connected with the connecting hole 61, and the length of the outer wall of the connecting hole 61 is longer than that of the pin tail 13 of the pins 1.

The implementation principle of the structure of the replacement welded contact pin 1 in the embodiment of the application is as follows: when a person uses the sensor, an external wire is connected with the contact pin 1, so that the sensor works by realizing circuit circulation. The manufacturing mode of the contact pin 1 can be industrial assembly line manufacturing, and the industrial manufacturing ensures that the contact pin 1 is low in manufacturing cost and high in efficiency. The adoption contact pin 1 grafting mode only needs to insert contact pin 1 in the jack groove, can dismantle the connected mode and make can carry out automatic equipment to the sensor, when dismantling the sensor, because contact pin 1 structure uses the grafting mode, does not weld the jack groove outer wall, so can dismantle easily and do not damage contact pin 1.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A replacement welded pin structure, characterized in that: including contact pin (1), hall element (2) and circuit board (3), circuit board (3) and hall element (2) fixed connection, contact pin (1) are pegged graft in the grafting inslot, the grafting inslot sets up on circuit board (3), contact pin (1) are connected with hall element (2) electricity, the inner wall of grafting inslot has elasticity, the inner wall of grafting inslot and contact pin (1) connector (11) interference fit, contact pin (1) are used for supplying outside wire electricity to be connected.

2. The replacement welded pin structure of claim 1, further comprising: magnetic core (4), checkpost (5) and shell (6), magnetic core (4) set up inside shell (6), checkpost (5) and magnetic core (4) fixed connection, magnetic core (4) can dismantle with circuit board (3) through checkpost (5) and be connected.

3. A replacement welded pin structure according to claim 1, wherein: the four pins (1) are respectively and electrically connected to the positive electrode end, the grounding end, the signal output end and the reference voltage output end of the Hall element (2) corresponding to the inserting grooves of the circuit board (3).

4. A replacement welded pin structure according to claim 1, wherein: the contact pin (1) comprises a contact plug (11), and the top end of the contact plug (11) is pointed.

5. A replacement welded pin structure according to claim 1, wherein: the contact pin (1) further comprises a middle structure (12), wherein the middle structure (12) is fixedly provided with an anti-falling convex part, and the anti-falling convex part is used for being embedded into the shell (6) so that the contact pin (1) is not easy to separate from the connecting hole (61).

6. The replacement welded pin structure of claim 5, wherein: the anti-drop convex parts are arranged at intervals along the length direction of the contact pin (1).

7. A replacement welded pin structure according to claim 1, wherein: the pin (1) is made of hard metal.

8. A replacement welded pin structure according to claim 2, wherein: the clamp is characterized in that the clamp (5) is provided with a groove (51) and a clamping groove (52), the groove (51) is communicated with a gap of the magnetic core (4), the groove wall of the groove (51) is used for clamping the magnetic core (4), the clamping groove (52) penetrates through two side walls of the groove (51), and the groove wall of the clamping groove (52) is used for clamping the circuit board (3).