CN220527238U

CN220527238U - Electric connector

Info

Publication number: CN220527238U
Application number: CN202322118978.5U
Authority: CN
Inventors: 刘元帅; 邬金星; 祁占云; 娄俊超
Original assignee: Shenzhen Inovance Technology Co Ltd
Current assignee: Shenzhen Inovance Technology Co Ltd
Priority date: 2023-08-07
Filing date: 2023-08-07
Publication date: 2024-02-23
Anticipated expiration: 2033-08-07

Abstract

The utility model discloses an electric connector, which is applied to a circuit board, wherein the circuit board is provided with a welding hole, and the electric connector comprises: a base; the pin penetrates through the base, and one end of the pin stretches into the welding hole to be welded with the circuit board; and the first positioning body is arranged on the periphery of the pin in a protruding mode, one end of the first positioning body is connected with the base, the other end of the first positioning body extends away from the base and forms a step structure with the pin, the step structure does not cover the welding hole completely, and the step structure is used for being abutted to the outer periphery of the welding hole. The technical scheme of the utility model aims to reduce the production and processing cost of the electric connector.

Description

Electric connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to an electrical connector.

Background

Electronic connectors, also commonly referred to as circuit connectors or electrical connectors, function to bridge two conductors on a circuit so that current or signals may flow from one conductor to the other.

The traditional electric connector generally comprises a shell, pins and other parts, wherein the pins are fixed on the shell and connected with a circuit board in a welding mode and the like, and in order to ensure that the electric connector is stable in position when being welded on the circuit board, the existing structure is often required to be provided with a pin for supporting and positioning on the shell to centralize the electric connector. However, the number of parts of the electric connector is increased in such a way, and the overall size of the electric connector is easily increased after the pins are added, which is not beneficial to reducing the processing and manufacturing cost of the electric connector.

Disclosure of Invention

The present utility model provides an electrical connector, which aims to reduce the manufacturing cost of the electrical connector.

In order to achieve the above object, the present utility model provides an electrical connector applied to a circuit board, the circuit board having a soldering hole, the electrical connector comprising:

a base;

the pin penetrates through the base, and one end of the pin stretches into the welding hole to be welded with the circuit board; and

the first locating body is arranged on the periphery of the pin in a protruding mode, one end of the first locating body is connected with the base, the other end of the first locating body extends away from the base and forms a step structure with the pin, and the step structure is used for being abutted to the outer periphery of the welding hole and does not cover the welding hole completely.

Optionally, in a direction perpendicular to the extension direction of the first positioning body, the cross section of the first positioning body has a long axis and a short axis, wherein the long axis is greater than 0.3mm and the short axis is less than 0.2mm;

or, in the extending direction perpendicular to the first positioning body, the first positioning body has a long side and a short side, wherein the long side is greater than 0.3mm, and the short side is less than 0.2mm.

Optionally, the first positioning body is of an insulating sleeve structure, and the insulating sleeve is sleeved on the pin; and/or, the first positioning body and the pin are of an integrated structure.

Optionally, an end surface of the first positioning body, which is far away from the base, is provided with a notch, and the notch extends towards one side of the base to discharge the gas in the welding hole during welding.

Optionally, the height of the notch is greater than 0.3mm along the extending direction of the pin.

Optionally, the electrical connector includes a support body, the support body is disposed on the base and surrounds the pins, and an exhaust channel is formed in the support body to exhaust gas between the base and the circuit board.

Optionally, the supporter includes a plurality of backplate, and a plurality of backplate interval is located the base is towards circuit board one side and encircle the pin sets up, the one end of backplate with the base is connected, the other end of backplate be used for support in circuit board is towards one side of base, two adjacent clearance between the backplate forms exhaust passage.

Optionally, the supporter includes the fender ring, the fender ring is located the base just encircles the pin sets up, the fender ring be used for supporting in the circuit board, the exhaust hole has been seted up to the lateral wall of fender ring, the exhaust hole forms exhaust passage, the fender ring is kept away from the terminal surface of base has been seted up and has been dodged the groove, dodged the groove and be used for dodging electronic component on the circuit board.

Optionally, dodge the groove and be equipped with a plurality ofly, a plurality of dodge the groove is followed keep off the circumference interval setting of ring.

Optionally, a plurality of exhaust holes are formed, and a plurality of exhaust holes are formed along the circumferential direction of the baffle ring at intervals.

Compared with the prior art, in the technical scheme of the utility model, the electric connector is used for being connected with a circuit board, a welding hole is formed in the circuit board, the electric connector comprises a base, a pin is arranged on the base in a penetrating manner, and one end of the pin extends into the welding hole to be welded with the circuit board; in addition, this electric connector still includes first location body, the periphery of pin is located to this first location body protrusion, and the one end of first location body is connected in the base, the other end deviates from the base extension and keeps away from the one end of base with the pin and form the step structure, this step structure is used for the butt in the periphery of welding hole, provide support and location for electric connector through this step structure, compare in traditional electric connector structure, can omit the setting of the pin that is used for supporting the location on the traditional electric connector, reach the effect of reduction electric connector part quantity, thereby be favorable to reducing the manufacturing cost of electric connector, in addition, this first location body protrusion is located the periphery of this pin, also be favorable to reducing the overall dimension of this electric connector, also be favorable to reducing the manufacturing cost and the material cost of this electric connector.

Drawings

In order to more clearly illustrate the embodiments of the present 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, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an electrical connector according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of another embodiment of an electrical connector according to the present utility model;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of another embodiment of an electrical connector according to the present utility model;

fig. 6 is a schematic structural view of another embodiment of the electrical connector of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Circuit board	20	Welding hole
100	Base seat	200	Pin
				300	First positioning body	400	Exhaust passage
500	Guard board	600	Baffle ring
				310	Notch

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In order to reduce the manufacturing cost of the electrical connector, the present disclosure proposes an electrical connector applied to a circuit board 10, the circuit board 10 having soldering holes 20, the electrical connector comprising:

a base 100;

the pin 200 is arranged on the base 100 in a penetrating way, and one end of the pin 200 extends into the welding hole 20 to be welded with the circuit board 10; and

the first positioning body 300 is convexly arranged on the periphery of the pin 200, one end of the first positioning body 300 is connected with the base 100, the other end of the first positioning body 300 extends away from the base 100 and forms a step structure with the pin 200, the step structure is used for being abutted to the outer periphery of the welding hole 20, and the step structure does not completely cover the welding hole 20.

Compared with the prior art, in the technical scheme of the utility model, the electric connector is used for being connected with the circuit board 10, the circuit board 10 is provided with the welding hole 20, the electric connector comprises the base 100, the base 100 is provided with the pin 200 in a penetrating way, and one end of the pin 200 stretches into the welding hole 20 to be welded with the circuit board 10; in addition, the electric connector further comprises a first positioning body 300, the first positioning body 300 is convexly arranged on the periphery of the pin 200, one end of the first positioning body 300 is connected to the base 100, the other end of the first positioning body extends away from the base 100 and forms a step structure with one end of the pin 200 far away from the base 100, the step structure is used for being abutted against the outer periphery of the welding hole 20, and the step structure is used for supporting and positioning the electric connector.

Specifically, as shown in fig. 1 to 4, in the present embodiment, the electrical connector includes a base 100, the base 100 may be an injection molding piece or a metal piece, the electrical connector further includes a pin 200, the pin 200 is a needle-shaped metal piece for conducting current, one end of the pin 200 is disposed on the base 100 in a penetrating manner for connecting with other electronic components, and the other end of the pin 200 extends away from the base 100 and is used for extending into the soldering hole 20 of the circuit board 10 and connecting with the soldering hole 20 through solder such as soldering tin; in addition, the electric connector further comprises a first positioning body 300, the first positioning body 300 is convexly arranged on the periphery of the pin 200, one end of the first positioning body 300 is connected with the base 100, the other end of the first positioning body 300 extends away from the base 100, one end of the first positioning body 300, which is far away from the base 100, forms a step structure with the pin 200, when the pin 200 stretches into the welding hole 20 of the circuit board 10, the step structure can be abutted to the periphery of the welding hole 20 to provide support for the electric connector, and thus, the positioning support is realized by arranging the structure on the pin 200, the pin 200 component for supporting on the traditional electric connector can be omitted, the material cost of the electric connector can be reduced, and in addition, the whole size of the base 100 can be reduced because the supporting structure is not required to be arranged in other areas on the base 100, and the material cost of the electric connector can be reduced. In addition, in this embodiment, the cross section of the first positioning body 300 is in a non-circular irregular shape, and when the first positioning body 300 is matched with the circuit board, the first positioning body 300 partially covers the soldering hole 20, that is, the step structure does not completely cover the soldering hole 20, so a gap is formed between the periphery of the soldering hole 20 and the step structure, and in the soldering process, gas in the soldering hole 20 can be discharged from the gap to the external environment, so that solder such as soldering tin can flow into the soldering hole 20, which is equivalent to increasing the solder climbing height of the soldering tin on the lead 200, and is beneficial to improving the soldering strength.

Further, in the extending direction perpendicular to the first positioning body 300, the cross section of the first positioning body 300 has a long axis and a short axis, wherein the long axis is greater than 0.3mm and the short axis is less than 0.2mm;

alternatively, the first positioning body 300 has a long side and a short side in an extending direction perpendicular to the first positioning body 300, wherein the long side is greater than 0.3mm and the short side is less than 0.2mm.

To improve the welding quality, the first positioning body 300 may partially cover the welding hole 20; in this embodiment, the cross section of the first positioning body 300 perpendicular to the extending direction thereof may be an elliptical cross section, the cross section has a major axis and a minor axis, wherein the length of the major axis is greater than 0.3mm, the length of the minor axis is less than 0.2mm, the size of the major axis portion may be greater than the aperture of the soldering hole 20, so that the step of the first positioning body 300 in the direction of the major axis may abut against the outer periphery of the soldering hole 20 to provide support and positioning, the size of the minor axis portion may be smaller than the aperture of the soldering hole 20, in this way, the step structure of the first positioning body 300 in the direction of the minor axis may form a gap with the soldering hole 20, and during soldering, the gas in the soldering hole 20 may be discharged out of the soldering hole 20 through the gap, so that solder may flow into the soldering hole 20 more smoothly, which is beneficial for improving the solder height on the soldered pin 200 after soldering, and improving soldering strength; similarly, the cross section may be a rectangular cross section having long sides and short sides, wherein the length of the long sides may be greater than 0.3mm, and the length of the short sides may be less than 0.2mm, so that the same effects as described above can be achieved, and details thereof will not be described herein.

Further, the first positioning body 300 is of an insulating sleeve structure, and the insulating sleeve is sleeved on the pin 200; and/or, the first positioning body 300 and the pin 200 are integrated. In this embodiment, the first positioning body 300 is a sleeve structure made of an insulating material, the insulating sleeve is sleeved on the periphery of the pin 200, and the insulating sleeve is connected with the base 100, so that the insulating sleeve can be integrally formed with the base 100 for convenience in processing, and thus, the insulating performance between the pin 200 and other components on the circuit board 10 can be improved. In another embodiment, the first positioning body 300 and the pin 200 may be an integral structure, and in this embodiment, the insulating first positioning body 300 and the pin 200 are both needle-shaped structures made of metal, and the step structure between the first positioning body 300 and the pin 200 may be formed by turning or milling, so that the integral structure has the advantages of simple structure and easy processing, and is also beneficial to reducing the processing and manufacturing cost of the electrical connector.

Further, the end surface of the first positioning body 300 far from the base 100 is provided with a notch 310, and the notch 310 extends towards one side of the base 100 to discharge the gas in the welding hole 20 during welding.

Further, the height of the notch is greater than 0.3mm along the extending direction of the pin.

In order to further improve the welding quality, the end surface of the first positioning body 300 far away from the base 100 may be provided with a notch 310, and the notch 310 may extend toward one side of the base 100, so a channel for discharging gas may be formed between the first positioning body 300 and the circuit board 10 at the position of the notch 310, during welding, gas in the welding hole 20 may be smoothly discharged from the position of the notch 310, which is favorable to improving the speed of discharging gas in the welding hole 20 during welding, and is favorable to increasing the tin amount of the solder flowing into the welding hole 20 before solidification of the solder, thereby improving the tin climbing height of the lead 200 and further improving the welding quality.

Further, the electrical connector includes a support body disposed on the base 100 and surrounding the pins 200, and the support body is provided with a gas exhaust channel 400 for exhausting the gas between the base 100 and the circuit board 10. In order to improve the connection strength between the electrical connector and the circuit board 10, the electrical connector further comprises a supporting body, the supporting body is arranged on the base 100 and surrounds the pins 200, the end of the supporting body is supported on the circuit board 10 to improve the supporting strength to the base 100 and other components, in addition, an exhaust channel 400 is further arranged on the supporting body, the exhaust channel 400 can be used for exhausting gas between the base 100 and the circuit board 10, so when the circuit board 10 needs to be filled with sealant or heat-dissipating glue, the glue can flow into an area between the base 100 and the circuit board 10 from the exhaust channel 400, the gas in the area can be smoothly exhausted from the exhaust channel 400, so that internal sealing bubbles after the glue filling is caused, the sealing effect is prevented from being influenced, in addition, the residual bubbles also cause the overall volume shrinkage to be too large when the glue is solidified to form uneven shrinkage concave, the overall appearance of the product is influenced, the device needs to be filled in advance or the product is solidified by secondary glue filling to obtain a large appearance, the manufacturing cost is increased, and the cost is saved.

Further, the support body includes a plurality of guard plates 500, wherein the guard plates 500 are spaced apart from one another on a side of the base 100 facing the circuit board 10 and are disposed around the pins 200, one end of each guard plate 500 is connected to the base 100, and the other end of each guard plate 500 is used for supporting the circuit board 10 on a side facing the base 100, and a gap between two adjacent guard plates 500 forms the exhaust channel 400. Referring to fig. 5, this embodiment shows a specific embodiment of a support body, where the support body includes a plurality of guard plates 500, the guard plates 500 are convexly disposed on a side of the base 100 facing the circuit board 10, and the plurality of guard plates 500 are all disposed around the pins 200, and the two adjacent guard plates 500 are in clearance fit, so that the clearance between the two adjacent guard plates 500 can be used as the exhaust channel 400 for exhausting during glue filling.

Further, the support body includes a baffle ring 600, the baffle ring 600 is arranged on the base 100 and surrounds the pins 200, the baffle ring 600 is used for supporting the circuit board 10, the side wall of the baffle ring 600 is provided with exhaust holes, the exhaust holes form an exhaust channel 400, the end surface of the baffle ring 600 far away from the base 100 is provided with an avoidance groove, and the avoidance groove is used for avoiding electronic elements on the circuit board 10.

Further, a plurality of avoidance grooves are provided, and the plurality of avoidance grooves are provided at intervals along the circumferential direction of the retainer ring 600.

Further, a plurality of exhaust holes are provided, and the exhaust holes are spaced apart along the circumferential direction of the baffle ring 600.

As shown in fig. 6, another specific embodiment of the support body is shown in this embodiment, where the support body includes a baffle ring 600, the baffle ring 600 is disposed on the base 100 and extends around the pins 200 for a circle, one end of the baffle ring 600 away from the base 100 is used for supporting on the circuit board 10, the side wall of the baffle ring 600 is provided with a vent hole, the aperture of the vent hole can be flexibly set according to the size of the baffle ring 600, the vent hole can be used as a vent channel 400 for venting, and in order to improve the venting effect, the vent hole can be provided with a plurality of vent holes, and the plurality of vent holes are arranged at intervals along the circumferential direction of the baffle ring 600; in addition, dodging grooves are further formed in the end face, far away from the base 100, of the baffle ring 600, and can be used for being corresponding to other component positions on the circuit board 10 when the baffle ring 600 is abutted to the circuit board 10, so that the baffle ring 600 is prevented from interfering with the circuit board, components on the circuit board 10 and the electric connector are conveniently arranged on the circuit board 10, and in addition, the dodging grooves can be formed in a plurality of positions along the circumferential direction of the baffle ring 600 at intervals, so that the electric connector is further conveniently arranged.

In sum, the first positioning body 300 is arranged on the pin 200 of the electric connector, the tin climbing height of the soldering tin on the pin 200 is improved through the special shape and the special size design of the first positioning body 300, the connection strength of the electric connector and the circuit board 10 is improved, and further, a supporting piece is not required to be arranged on the electric connector independently, so that the aim of reducing the production and processing cost of the connector is fulfilled; in addition, through setting up the supporter that has exhaust passage 400, when improving electric connector and circuit board 10 joint strength, also make the air between electric connector and the circuit board 10 can follow exhaust passage 400 smoothly when the electric connector is used on the encapsulating product, guaranteed that the product need not the secondary encapsulating and can realize the abundant filling of inside glue, improved the reliability of the use of product.

The foregoing description of the embodiments of the present utility model is merely an optional embodiment of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present utility model in the light of the present utility model, the description of which and the accompanying drawings, or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. An electrical connector for use with a circuit board having solder apertures, the electrical connector comprising:

a base;

2. The electrical connector of claim 1, wherein a cross section of the first positioning body has a major axis and a minor axis in a direction perpendicular to an extension of the first positioning body, wherein the major axis is greater than 0.3mm and the minor axis is less than 0.2mm;

3. The electrical connector of claim 1, wherein the first positioning body is an insulating sleeve structure, and the insulating sleeve is sleeved on the pin; and/or, the first positioning body and the pin are of an integrated structure.

4. The electrical connector of claim 1, wherein an end surface of the first positioning body remote from the base is provided with a notch extending toward a side of the base to vent gas in the soldering hole during soldering.

5. The electrical connector of claim 4, wherein the notch has a height greater than 0.3mm along the pin extension.

6. The electrical connector of claim 1, comprising a support body disposed about the pins and having an exhaust passage for exhausting air between the base and the circuit board.

7. The electrical connector of claim 6, wherein the support body comprises a plurality of guard plates, the guard plates are arranged at intervals on one side of the base facing the circuit board and around the pins, one end of each guard plate is connected with the base, the other end of each guard plate is used for supporting one side of the circuit board facing the base, and a gap between two adjacent guard plates forms the exhaust channel.

8. The electrical connector of claim 7, wherein the support body comprises a retainer ring, the retainer ring is disposed on the base and surrounds the pins, the retainer ring is configured to be supported on the circuit board, an exhaust hole is formed in a side wall of the retainer ring, the exhaust hole forms the exhaust channel, an avoidance groove is formed in an end surface of the retainer ring away from the base, and the avoidance groove is configured to avoid an electronic component on the circuit board.

9. The electrical connector of claim 8, wherein a plurality of said relief grooves are provided, and a plurality of said relief grooves are spaced apart along a circumference of said retainer ring.

10. The electrical connector of claim 8, wherein a plurality of the vent holes are provided, the plurality of vent holes being spaced apart along the circumference of the retainer ring.