CN220106971U

CN220106971U - Connecting piece and vehicle-mounted charger

Info

Publication number: CN220106971U
Application number: CN202320974589.XU
Authority: CN
Inventors: 袁涛; 毕浩; 李云海; 戚本钰; 任鹤; 魏上然; 赵艳龙; 于明涛
Original assignee: United Automotive Electronic Systems Co Ltd
Current assignee: United Automotive Electronic Systems Co Ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-11-28
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to the technical field of connection of a circuit board and an electrical element, in particular to a connecting piece and a vehicle-mounted charger; the connecting piece is used for connecting a circuit board and an electric element, wherein an inserting part is preset on the electric element, and the connecting piece comprises: the base is used for being attached to the surface of the circuit board, and the base is provided with an inserting hole for the insertion part to be inserted; the elastic part is formed at the edge of the jack and is arranged in a cantilever manner towards the center of the jack, and the elastic part is configured to deform and prop against the side wall of the jack when the jack is inserted into the jack along a first direction so as to inhibit the jack from being pulled out of the jack along the reverse direction of the first direction; the circuit board is connected with the electrical components through the connecting piece, so that the circuit board can be connected with a plurality of plug-in parts on the electrical components at one time, the connection efficiency is high, and the connection cost is low.

Description

Connecting piece and vehicle-mounted charger

Technical Field

The utility model relates to the technical field of connection of circuit boards and electrical components, in particular to a connecting piece and a vehicle-mounted charger.

Background

The traditional electrical components and the circuit board are generally connected through screws, nuts corresponding to the screws are required to be arranged on the electrical components, the circuit board and the electrical components are directly connected through the screws, on one hand, drilling and tapping processes are required to be adopted for the connection through the screws, and in addition, the screws and the nuts are required to be used for the operation of screwing, so that the overall cost is high; on the other hand, because more screws are required to be used, the screws are required to be connected and mounted one by one, and the connection efficiency is low.

Disclosure of Invention

In view of the above drawbacks of the prior art, an object of the present utility model is to provide a connecting piece, so as to solve the technical problems of high connection cost and low connection efficiency existing in the prior art that an electrical component and a circuit board are connected by using screws.

To achieve the above and other related objects, the present utility model provides a connector for connecting a circuit board and an electrical component, wherein a socket part is preset on the electrical component, the connector comprising:

the base is used for being attached to the surface of the circuit board, and the base is provided with an inserting hole for the insertion part to be inserted;

the elastic part is formed at the edge of the jack and is arranged in a overhanging manner towards the center of the jack, and the elastic part is configured to enable the elastic part to deform and abut against the side wall of the jack when the jack is inserted into the jack along the first direction so as to inhibit the jack from being pulled out of the jack along the reverse direction of the first direction.

In one alternative, at least two groups of elastic parts are arranged; the two groups of elastic parts are arranged on a first edge and a second edge of the jack, and the first edge and the second edge are two opposite edges of the jack.

In one alternative, the elastic portion is disposed obliquely to the first direction.

In one alternative, the base and the elastic portion are integrally formed.

In one alternative, the ends of the two groups of elastic parts are staggered.

In one alternative, the projected ends of the two sets of elastic parts in the second direction are overlapped or crossed, and the second direction is parallel to the first edge and the second edge.

In one alternative, the base and the elastic portion are made of conductive material.

In one alternative, the elastic part is a sheet structure.

In one alternative, a partial region of the elastic portion near the edge of the insertion hole is parallel to the base.

The utility model also provides a vehicle-mounted charger, which comprises: a circuit board;

the magnetic piece is provided with pins;

a connecting member including a base and an elastic portion;

the base is attached to the surface of the circuit board, and the base is provided with jacks for the pins to be inserted;

the elastic part is formed at the edge of the jack and is arranged in a overhanging manner towards the center of the jack, and the elastic part is configured to enable the elastic part to deform and abut against the side wall of the pin when the pin is inserted into the jack along the first direction so as to inhibit the pin from being pulled out of the jack along the reverse direction of the first direction.

In one alternative, the pin is flat, and the end of the elastic part is in interference fit with the wide surface of the pin.

In one alternative, the vehicle-mounted charger further includes: and the cavity is used for accommodating the magnetic piece.

The beneficial effects are that:

the circuit board is connected with the electrical components through the connecting piece, so that the circuit board can be connected with a plurality of plug-in parts on the electrical components at one time, and the connection efficiency is high; meanwhile, the connecting piece is used for connecting the circuit board and the plug-in part on the electrical element, drilling, tapping and screwing processes are not needed, and the manufacturing cost of the connecting piece is lower than that of a screw nut, so that the connection cost of the circuit board and the electrical element is reduced; simultaneously; through the setting of elastic part for even electrical components weight is heavier, also can reduce the damage that electrical components caused the circuit board when transport and assembly to minimum, and can avoid or reduce the grafting department solder joint damage on the electrical components, guaranteed the connection quality of circuit board and electrical components, and connect through this connecting piece, reduced the welding volume, more environmental protection.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a specific structure of a connector according to the present utility model;

FIG. 2 is a state diagram of the connector of the present utility model disposed on a circuit board;

FIG. 3 is a state diagram of the plug portion of the present utility model to be inserted into a connector;

FIG. 4 is a schematic diagram showing the connection between the plug and the electrical device according to the present utility model;

FIG. 5 is a schematic diagram showing the connection of an electrical component to a circuit board via a connector according to the present utility model;

FIG. 6 is a state diagram showing the insertion of the plug portion into the jack according to the present utility model;

FIG. 7 is a schematic diagram showing the joint connection between the plug part and the elastic member according to the present utility model;

FIG. 8 is a schematic view showing the structure of the two sets of elastic parts of the present utility model with the projected ends in the second direction intersecting each other;

FIG. 9 is a schematic diagram of a prior art connection of a circuit board to an electrical component by screw fixation;

reference numerals: the circuit board 1, the screw 11, the electrical component 2, the plug portion 21, the connector 3, the base 31, the insertion hole 311, the first edge 3111, the second edge 3112, the elastic portion 32, the flat section 321, the inclined section 322, the recess 3221, the crack stopper 323, and the cavity 4.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the utility model is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the utility model. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.

Please refer to fig. 1 to 9. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or adjustments of the sizes, which are otherwise, used in the practice of the utility model, are included in the spirit and scope of the utility model which is otherwise, without departing from the spirit or scope thereof. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

Where numerical ranges are provided in the examples, it is understood that unless otherwise stated herein, both endpoints of each numerical range and any number between the two endpoints are significant both in the numerical range. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs and to which this utility model belongs, and any method, apparatus, or material of the prior art similar or equivalent to the methods, apparatus, or materials described in the examples of this utility model may be used to practice the utility model.

Referring to fig. 1-9, the present utility model provides a connector for connecting a circuit board 1 and an electrical component 2, wherein a socket 21 is preset on the electrical component 2, and the connector 3 includes:

a base 31 for being attached to the surface of the circuit board 1, wherein an insertion hole 311 into which the insertion portion 21 is inserted is provided in the base 31;

and an elastic portion 32 formed at an edge of the insertion hole 311 and overhanging toward a center of the insertion hole 311, wherein the elastic portion 32 is configured to deform the elastic portion 32 and contact a sidewall of the insertion portion 21 when the insertion portion 21 is inserted into the insertion hole 311 along a first direction, so as to inhibit the insertion portion 21 from being pulled out of the insertion hole 311 along a reverse direction of the first direction.

It should be noted that, the first direction in this case includes, but is not limited to, a direction perpendicular to the base 31, that is, a direction of the jack 311, the connector 3 is used for connecting the circuit board 1 and the electrical component 2, the base 31 is fixed on the circuit board 1, the electrical component 2 is provided with the plugging portion 21, the plugging portion 21 is inserted into the jack 311 in the first direction, and the elastic portion 32 disposed at the jack 311 prevents the plugging portion 21 from being pulled out from the jack 311 in a reverse direction of the first direction, so as to limit the circuit board 1 to be fixed on the electrical component 2.

The jack 311 is aligned with the plug-in portion 21 on the electrical element 2 through the connecting piece 3, on one hand, the circuit board 1 is pressed towards the electrical element 2 to realize the quick connection and fixation of the circuit board 1 and the electrical element 2, and when the circuit board 1 is connected with the electrical element 2 through a plurality of connecting pieces 3, the jack 311 is aligned with the plug-in portion 21 in the first direction, so that the plug-in connection of all the connecting pieces 3 and the plug-in portion 21 can be realized at one time, and the quick connection of the circuit board 1 and the electrical element 2 is realized, and the connection efficiency is high; on the other hand, through the connection piece 3 with the grafting portion 21 on the electrical component 2, need connect connection piece 3 and grafting portion 21, connection piece 3 is connected with circuit board 1 through welding or bonding or SMT paster technique, grafting portion 21 is connected with electrical component 2 through welding or bonding mode, the connected mode is simpler than using screw 11 and nut to connect, the total manufacturing cost of connection piece 3 and grafting portion 21 is lower than the total manufacturing cost of screw 11 and nut simultaneously, and the installation of connection piece 3 and grafting portion 21 is simple and convenient than the installation of screw 11 and nut, and then reach the purpose of reduction in connection cost.

Meanwhile, the traditional electric element 2 and the circuit board 1 are also connected in a mode of welding in a selective wave soldering mode, and because some electric elements 2 are heavier, larger strain is caused to the circuit board 1 in the carrying and assembling processes, the plug-in part 21 is connected with the electric element 2 in a welding mode, the welding spot of the selective wave soldering at the plug-in part 21 is also influenced by the gravity of the electric element 2, the reliability of the welding spot is difficult to ensure, the process takt time of the selective wave soldering is long, the cost is high, the process requirement is high, and the problem of being not friendly to the environment is also caused;

the elastic part 32 is arranged, so that the circuit board 1 and the electrical element 2 are elastically connected, even if the electrical element 2 is heavier, the damage to the circuit board 1 caused by the electrical element 2 during carrying and assembling can be minimized, and the damage to welding spots at the plug-in part 21 on the electrical element 2 can be avoided or reduced due to the elastic connection, thereby ensuring the connection quality of the circuit board 1 and the electrical element 2 and having high connection efficiency; meanwhile, the connecting piece 3 is used for connection, so that the welding workload is reduced, and the environment is protected.

As an alternative embodiment of the present disclosure, as shown in fig. 1, at least two groups of elastic parts 32 are provided; two sets of the elastic parts 32 are disposed on a first edge 3111 and a second edge 3112 of the receptacle 311, and the first edge 3111 and the second edge 3112 are two opposite edges of the receptacle 311.

It should be noted that the number of the groups of the elastic portions 32 is not limited to three groups, four groups or five groups, or the total number of groups is odd or even, the number of the elastic portions 32 in each group is not limited to singular and even, and at least one elastic portion 32 in each group is provided.

As an alternative embodiment, as shown in fig. 1, the elastic portion 32 is disposed obliquely to the first direction.

According to the scheme, the elastic parts 32 are arranged at two opposite edges of the jack 311 and are arranged in a cantilever manner towards the center of the jack 311, and the elastic parts 32 incline towards the first direction, so that the two groups of elastic parts 32 can be arranged in a state that one end is large and the other end is small, and the insertion of the plug-in part 21 into the jack 311 is conveniently and smoothly guided; meanwhile, when the plug-in portion 21 is pulled out, the two groups of elastic portions 32 form resistance to the pulling-out direction of the plug-in portion 21, so that the elastic portions 32 limit the pulling-out direction of the plug-in portion 21 from the jack 311.

Further, the portion of the elastic portion 32 inclined toward the first direction is a straight segment or an arc segment to increase the arrangement form of the elastic portion 32.

Further, the insertion hole 311 includes, but is not limited to, a circular shape or a square shape or a rectangular shape or a polygonal shape.

Further, the cross-sectional shape of the elastic portion 32 includes, but is not limited to, a square shape or a rectangular shape or an arc shape that matches the insertion portion 21.

As an alternative embodiment, as shown in fig. 1, the base 31 and the elastic portion 32 are integrally formed.

By integrally molding the base 31 and the elastic portion 32, on the one hand, the base 31 and the elastic portion 32 are made to have good connectivity; on the other hand, it is advantageous to reduce the manufacturing cost, such as by integrally injection molding or by integrally molding a piece of steel sheet or copper sheet by stamping, omitting the cost of continuing to connect the base 31 and the elastic portion 32.

As an alternative embodiment, as shown in fig. 1, two sets of ends of the elastic portion 32 are staggered.

When the insertion portion 21 is not inserted into the insertion hole 311 and abuts against the elastic portion 32, if one ends of two adjacent elastic portions 32 are pressed together for a long period of time, the two elastic portions 32 are easily plasticized or the elastic force of the elastic portions 32 is reduced due to long-term abutting stress; therefore, by staggering the two adjacent elastic portions 32, no interference stress exists between the two adjacent elastic portions 32, so that the problem of plasticizing or reducing the elastic force of the elastic portions 32 due to long-term interference stress between the two adjacent elastic portions 32 can be avoided.

As shown in fig. 1 and 8, as an alternative embodiment of the present disclosure, the projected ends of the two sets of elastic parts 32 in the second direction, which is a direction parallel to the first edge 3111 and the second edge 3112, are overlapped or crossed with each other.

By overlapping or intersecting the projected ends of the two sets of elastic portions 32 in the second direction, the two sets of elastic portions 32 can have a large clamping force when elastically clamping the plug portion 21, and the bonding area between the elastic portions 32 and the plug portion 21 can be increased, so that the compatibility between the elastic portions 32 and the plug portion 21 can be increased.

As shown in fig. 1 and 8, as an alternative embodiment, a recess 3221 is provided at an end of one set of the elastic portions 32; the other set of the ends of the elastic portions 32 extend into and fit the recess 3221; the arrangement of the elastic portion 32 is increased on the one hand, and on the other hand, the clamping force of the elastic portion 32 for clamping the plugging portion 21 is advantageously increased.

As shown in fig. 1-2, as an alternative embodiment of the present disclosure, the base 31 and the elastic portion 32 are made of conductive materials.

It should be noted that SMT is a surface mount technology (Surface Mounted Technology is abbreviated as "surface mount technology"), which is a process in the electronic assembly industry, and the base 31 is electrically and mechanically connected to the circuit board 1 through the SMT surface mount technology, so as to electrically and mechanically connect the circuit board 1 to the electrical component 2.

As an alternative embodiment, as shown in fig. 1, the elastic portion 32 is a sheet structure.

If the plug portion 21 has a cylindrical structure, the elastic portion 32 has a bottleneck shape of a ring, and although elastic connection between the plug portion 21 and the elastic portion 32 can be achieved, the plug portion 21 and the elastic portion 32 are in annular line contact, so that the contact area between the plug portion 21 and the elastic portion 32 is small, and thus a large current flowing between the plug portion 21 and the elastic portion 32 has a certain effect; the plugging portion 21 is provided with a flat plate structure and is matched with the sheet-shaped elastic portion 32, so that the plugging portion 21 and the elastic portion 32 can have certain surface contact, and the contact area of the plugging portion 21 and the elastic portion 32 is increased, so that the use of large current between the circuit board 1 and the electrical element 2 is met.

As an alternative embodiment, as shown in fig. 1, a part of the elastic portion 32 near the edge of the insertion hole 311 is parallel to the base 31.

The elastic part 32 includes a flat section 321 and an inclined section 322; the part area of the elastic part 32 close to the edge of the jack 311 is a flat section 321, and the elastic part 32 is provided with the flat section 321 and an inclined section 322, so that on one hand, the elastic force of the elastic part 32 can be improved by one more bending part on the elastic part 32, and the elastic part 32 can be better attached to the plug-in part 21; on the other hand, when the elastic portion 32 is elastically deformed, the connection portion between the flat section 321 and the inclined section 322 can also bear a certain elastic deformation, so that the elastic deformation of the elastic portion 32 is prevented from being concentrated at the connection portion between the elastic portion 32 and the base 31 to the maximum extent, and thus the occurrence of the problem that the elastic portion 32 breaks on the base 31 can be avoided or reduced, and the quality and the service life of the connecting piece 3 are improved.

Further, the inclined section 322 has an arc shape in a length direction.

Further, the surface of the inclined section 322, which is matched with and attached to the plugging portion 21, is a plane or an arc surface.

As shown in fig. 1, as an alternative embodiment, one set of elastic parts 32 is provided with only one elastic part, the other set of elastic parts 32 is provided with two elastic parts, and the joint of the set of elastic parts 32 provided with only one elastic part 32 and the base 31 is provided with a break 323, so as to improve the service life of the connecting piece 3.

As shown in fig. 1-9, the present utility model further provides a vehicle-mounted charger, including: a circuit board 1;

the magnetic piece is provided with pins;

a connector 3, the connector 3 including a base 31 and an elastic portion 32;

the base 31 is attached to the surface of the circuit board 1, and the base 31 is provided with a jack 311 into which the pin is inserted;

and an elastic part 32 formed at the edge of the insertion hole 311 and overhanging toward the center of the insertion hole 311, wherein the elastic part 32 is configured to deform the elastic part 32 and contact the side wall of the pin when the pin is inserted into the insertion hole 311 along the first direction, so as to inhibit the pin from being pulled out of the insertion hole 311 along the reverse direction of the first direction.

It should be noted that, the electrical component 2 is a magnetic component, the plug-in portion 21 is a pin, and in the vehicle-mounted charger of the new energy vehicle, the volume and gravity of the magnetic component far exceed those of the conventional electrical component 2, so that the problem of low connection stability between the magnetic component and the circuit board 1 and the problem of damage to the circuit board 1 due to connection are avoided by using the connecting piece 3 to connect the circuit board 1 and the magnetic component, and the size parameter of the connecting piece 3 is adjusted through the durability experiment result, so that the connection between the circuit board 1 and the magnetic component can be ensured.

As an alternative embodiment, as shown in fig. 3-5, the pin is flat, and the end of the elastic portion 32 is in interference fit with the broad surface of the pin.

The pins are flat, and the elastic portions 32 are in interference fit with the wide surfaces of the pins, so that the contact area between the elastic portions 32 and the pins can be increased, and the amount of current flowing between the magnetic element and the circuit board 1 in the vehicle-mounted battery charger can be further increased.

As shown in fig. 3-5, as an alternative embodiment of the present application, the vehicle-mounted charger further includes: and the cavity 4 is used for accommodating the magnetic piece.

The magnetic part has a certain heating value, the cavity 4 generally has the functions of cooling and storing the magnetic part, and a three-dimensional water channel for cooling is arranged in the cavity 4; the magnetic part is generally put into the cavity 4 firstly, then the circuit board 1 is pressed down by the press, so that the plug-in part 21 on the magnetic part is inserted into the elastic part 32 on the circuit board 1, connection is realized, the equipment in the assembly mode only needs the press without welding, the operation is simple, environmental pollution is not caused, the plug-in parts 21 can be connected with the connecting piece 3 at one time, the efficiency is high, and the risk that the screw 11 directly penetrates through the wall of the three-dimensional water channel to enter the water channel to influence the heat dissipation effect and the tightness can be avoided.

In conclusion, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. A connector for connecting a circuit board and an electrical component, wherein a plug part is preset on the electrical component, the connector comprising:

2. A connector as defined in claim 1, wherein: the elastic part is at least provided with two groups; the two groups of elastic parts are arranged on a first edge and a second edge of the jack, and the first edge and the second edge are two opposite edges of the jack.

3. A connector as defined in claim 1, wherein: the elastic portion is disposed obliquely to the first direction.

4. A connector according to claim 2, wherein said base is integrally formed with said resilient portion.

5. A connecting member according to claim 2, wherein the ends of the two sets of said elastic portions are staggered with respect to each other.

6. A connector as defined in claim 2, wherein: the projected ends of the two groups of elastic parts in the second direction are overlapped or crossed, and the second direction is parallel to the first edge and the second edge.

7. A connector as defined in claim 1, wherein: the base and the elastic portion are made of a conductive material.

8. A connector as defined in claim 2, wherein: the elastic part is of a sheet structure.

9. A connector according to claim 3, wherein: the elastic part is parallel to the base in a part area close to the edge of the jack.

10. The utility model provides a vehicle-mounted charger which characterized in that: comprising the following steps:

a circuit board;

the magnetic piece is provided with pins;

a connecting member including a base and an elastic portion;

11. The vehicle-mounted charger of claim 10, wherein: the pin is flat, and the end part of the elastic part is in interference fit with the wide surface of the pin.

12. The vehicle-mounted charger of claim 10, further comprising:

and the cavity is used for accommodating the magnetic piece.