CN211265775U

CN211265775U - Vehicle-mounted charger and anode power connection structure thereof

Info

Publication number: CN211265775U
Application number: CN202020132406.6U
Authority: CN
Inventors: 不公告发明人
Original assignee: Mpow Technology Co ltd
Current assignee: Mpow Technology Co ltd; Shenzhen Qianhai Patozon Network Technology Co Ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-08-14
Anticipated expiration: 2030-01-20

Abstract

The utility model relates to the technical field of vehicle-mounted chargers, in particular to a vehicle-mounted charger and a positive electrode connection structure thereof, the positive electrode connection structure comprises a positive electrode bullet, an elastic part and a limit frame, the positive electrode bullet is inserted into an insertion hole of a charger shell, the end part positioned in the charger shell is limited in the charger shell, the elastic part is positioned in the charger shell, one end part of the elastic part is connected with a circuit board, the other end part of the elastic part elastically butts against the positive electrode bullet, the limit frame is arranged in the charger shell, the connection end of the positive electrode bullet is exposed outside the charger shell when the positive electrode bullet compresses the elastic part until the elastic part butts against the limit frame, when the vehicle-mounted charger is inserted with a vehicle power supply, the positive electrode bullet butts against a positive electrode power supply connector, the positive electrode bullet is forced to shift towards the charger shell and compresses the elastic part until the positive electrode bullet butts against, the electric connection end of the positive warhead is exposed out of the charger shell, so that the stroke of the positive warhead is effectively controlled.

Description

Vehicle-mounted charger and anode power connection structure thereof

Technical Field

The utility model belongs to the technical field of vehicle charger, more specifically say, relate to a vehicle charger and positive pole connects electric structure thereof.

Background

At present, portable electronic devices such as mobile phones and tablets become one of the necessities of life of people, and the electronic products have the advantages of multiple functional applications, long service time and high power consumption. In order to provide more convenient and faster charging for electronic products, most of the electronic products adopt lithium batteries at present. Generally, the lithium battery charging needs to be completed in a constant voltage and constant current environment, but the vehicle-mounted storage battery is unstable in power supply, and phenomena such as instantaneous peak voltage and system switching noise exist. Thereby promoting the widespread use of in-vehicle chargers.

The positive pole of on-vehicle charger connects electric structure includes anodal warhead and elastic component, anodal warhead passes through elastic component and the interior circuit board electric connection of on-vehicle charger, meanwhile, realize through the elastic component that anodal warhead is in the grafting end elastic expansion of shell, the condition in the shell is died to the card easily appears when the contact tip of current anodal warhead retracts in to the shell, can cause like this and the unable normal contact of vehicle power supply, easily make the risk that the on-vehicle charger produced outage or short circuit, influence user normal use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an on-vehicle charger and anodal electricity structure that connects thereof to solve the contact jaw portion that has the anodal warhead among the prior art and easily appear the card when retracting in to the shell and die the condition in the shell, can cause like this with the unable normal contact of vehicle mounted power source, easily make on-vehicle charger produce the risk of outage or short circuit, influence the technical problem of user normal use.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a vehicle-mounted charger positive pole connects electric structure, vehicle-mounted charger includes charger shell and installs in the circuit board in the charger shell, the charger shell is seted up the spliced eye in its grafting end. The positive pole power connection structure comprises a positive pole bullet, an elastic piece and a limiting frame, wherein the positive pole bullet is inserted into the plug hole, and the end part of the positive pole bullet, which is positioned in the charger shell, is limited in the charger shell; one end of the elastic piece is connected with the circuit board, and the other end of the elastic piece elastically props against the positive warhead; the limiting frame is installed in the charger shell, and the electric connection end of the positive bullet is exposed out of the charger shell when the positive bullet compresses the elastic piece until abutting against the limiting frame.

Preferably, the limiting frame comprises a main frame body with a through cavity and a sliding connection rib connected to the outer side wall of the main frame body, the elastic piece penetrates through the through cavity, and the main frame body is installed in the charger shell through the sliding connection rib and the charger shell in a sliding connection matching mode.

Preferably, the main frame body is provided with a side opening along the length direction of the side wall of the main frame body, the side opening is used for the main frame body to elastically expand and contract, and the outer side wall of the main frame body elastically pushes against the inner wall of the charger shell.

Preferably, the limiting frame further comprises a plurality of supporting ribs circumferentially arranged on the outer side wall of the main frame body at intervals, and each supporting rib elastically abuts against the inner wall of the charger shell.

Preferably, an outer edge of an end portion of each of the support ribs facing the plug hole is provided with a guide slope.

Preferably, an end face of the main frame body opposite to the circuit board is provided with a socket for the end of the circuit board to be plugged.

Preferably, in the elastic member, the connecting end portion opposite to the circuit board is transversely inserted into the circuit board, and in the limiting frame, the end face opposite to the circuit board is provided with an avoiding opening for avoiding the connecting end portion.

Furthermore, the positive warhead comprises a main body with a U-shaped section and a clamping plate formed by extending the opening end of the main body in a circumferential radiating manner, the main body is inserted into the plug hole of the charger shell, the clamping plate is positioned in the charger shell and can be clamped at the plug hole, and the end part of the elastic element is inserted into the main body and elastically abuts against the inner wall of the main body.

Preferably, the end surface of the main body opposite to the clamping plate comprises a conical surface and a contact surface positioned at the pointed top of the conical surface.

The utility model also provides an on-vehicle charger, on-vehicle charger include charger shell, install in circuit board in the electrical apparatus shell and as above-mentioned on-vehicle charger positive pole connect the electric structure, charger shell sets up the spliced eye in its grafting end, on-vehicle charger positive pole connect the electric structure insert in the spliced eye and with circuit board electric connection.

The utility model provides a pair of vehicle charger and anodal beneficial effect who connects electric structure thereof lies in: the positive pole electricity connecting structure comprises a positive pole bullet, an elastic piece and a limiting frame, wherein the positive pole bullet is inserted into an inserting hole of the charger shell, the end part positioned in the charger shell is limited in the charger shell, the elastic piece is positioned in the charger shell, one end part of the elastic piece is connected to the circuit board, the other end part of the elastic piece elastically props against the positive pole bullet, meanwhile, the limiting frame is installed in the charger shell, the electricity connecting end of the positive pole bullet compresses the elastic piece until the elastic piece is propped against the limiting frame and is exposed out of the charger shell, therefore, the positive pole bullet can be propped against the positive power supply connector when the vehicle-mounted charger is inserted into the vehicle power supply, the positive pole bullet is forced to move towards the charger shell and compresses the elastic piece until the positive pole bullet props against the limiting frame, the movement is stopped, and at the electricity connecting end of the positive pole bullet is exposed out of the charger shell, like this, the stroke of effective management and control positive warhead prevents that the positive warhead from contracting to charger shell inside and the condition of blocking appears, constantly contacts with vehicle mounted power when guaranteeing vehicle mounted charger to use, avoids vehicle mounted charger to produce the risk of outage or short circuit, improves user experience to its.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is an exploded perspective view of an in-vehicle charger according to an embodiment of the present invention;

fig. 2 is a perspective view of a limiting frame provided by the embodiment of the present invention;

fig. 3 is a partial assembly view of the vehicle-mounted charger according to the embodiment of the present invention;

fig. 4 is a perspective view of an elastic member according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

vehicle-mounted charger	1	Charger shell	100
				Circuit board	200	Plug hole	101
Positive electrode connection structure	300	Positive bullet	310
				Elastic piece	320	Limiting rack	330
Main frame body	331	Through cavity	301
				Sliding joint rib	332	Side opening	302
Support rib	333	Guide slope	303
				Interface	304	Dodging port	305
Connecting end	321	U-shaped part	3211
				Tail part	3212	Main body	311
Clamping plate	312	Conical surface	306
				Contact surface	307

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or it can be indirectly fixed to or disposed on the other element through a third member. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element through a third component.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1, an embodiment of the present invention provides a vehicle charger positive electrode connection structure, in which the vehicle charger 1 includes a charger housing 100 and a circuit board 200 installed in the charger housing 100, and the charger housing 100 is provided with a plug hole 101 at a plug end thereof. The positive electrode power connection structure 300 comprises a positive electrode bullet 310, an elastic piece 320 and a limiting frame 330, wherein the positive electrode bullet 310 is inserted into the insertion hole 101, and the end part of the positive electrode bullet located in the charger housing 100 is limited in the charger housing 100; one end of the elastic member 320 is connected to the circuit board 200 and the other end thereof elastically abuts against the positive warhead 310; the position-limiting frame 330 is installed in the charger housing 100, and the electric connection end of the positive bullet 310 is exposed outside the charger housing 100 when the positive bullet 310 compresses the elastic member 320 until abutting against the position-limiting frame 330.

In the embodiment, the positive electrode connecting structure 300 includes a positive electrode bullet 310, an elastic member 320 and a limiting frame 330, the positive electrode bullet 310 is inserted into the insertion hole 101 of the charger housing 100, wherein an end portion of the positive electrode bullet 310 located in the charger housing 100 is limited in the charger housing 100, the elastic member 320 is located in the charger housing 100, one end portion of the elastic member 320 is connected to the circuit board 200 and the other end portion thereof elastically abuts against the positive electrode bullet 310, meanwhile, the limiting frame 330 is installed in the charger housing 100, the connecting end of the positive electrode bullet 310 is exposed outside the charger housing 100 when the positive electrode bullet 310 compresses the elastic member 320 until abutting against the limiting frame 330, as can be understood, when the vehicle-mounted charger 1 is inserted into the vehicle power supply, the positive electrode bullet 310 abuts against the positive electrode power supply connector, the positive electrode bullet 310 is forced to displace towards the inside of the charger housing 100 and compresses the elastic member 320 until the positive electrode bullet 310 abuts against the limiting frame 330, just stop the aversion, and at this moment, the end of connecting electricity of anodal warhead 310 exposes outside charger shell 100, like this, the stroke of anodal warhead 310 of effective management and control prevents that anodal warhead 310 from contracting to inside charger shell 100 and the card-ends condition appears, constantly contacts with vehicle power supply when guaranteeing vehicle charger 1 to use, avoids vehicle charger 1 to produce the risk of outage or short circuit, improves user experience nature to its.

It can be understood that before the limiting frame 330 is not provided, there is a risk that the positive bullet 310 goes into the charger housing 100 indefinitely, so that the rear elastic member 320 is pressed too far away from the circuit board 200 or the circuit board 200 is damaged, and the entire vehicle-mounted charger 1 is broken, damaged, or even cannot be used. After the limiting frame 330 is arranged, the stroke of the positive warhead 310 can be effectively controlled.

Referring to fig. 1 and 2, preferably, the limiting frame 330 includes a main frame 331 having a through cavity 301 and a sliding rib 332 connected to an outer side wall of the main frame 331, and the elastic member 320 is disposed through the through cavity 301, so that the elastic member 320 is enclosed in the main frame 331, which can well prevent the elastic member 320 from contacting the negative pole elastic block or the capacitor on the circuit board 200 due to irregular deformation, and eliminate the risk of short circuit of the vehicle-mounted charger 1. In this embodiment, the elastic member 320 is a metal spring. The spacing frame 330 has an insulating property. The main frame body 331 is installed in the charger housing 100 through the sliding connection rib 332 and the charger housing 100 in a sliding connection matching manner, so that on one hand, the positioning assembly between the limiting frame 330 and the charger housing 100 is realized, the limiting frame 330 is also effectively prevented from rotating in the charger housing 100, and the circumferential limiting is realized.

Referring to fig. 1 and fig. 2, preferably, the main frame 331 has a side opening 302 along a length direction of the main frame 331 for allowing the main frame 331 to elastically expand and contract, and an outer side wall of the main frame 331 elastically abuts against an inner wall of the charger housing 100. Thus, in the charger housing 100, the limiting frame 330 is in an elastic expansion state, but due to the surrounding of the charger housing 100, a certain contact force is provided between the limiting frame 330 and the inner wall of the charger housing 100, so that the limiting frame 330 is tensioned in the charger housing 100, and the fixing of the limiting frame 330 in the charger housing 100 is realized.

Referring to fig. 1 and 2, preferably, the limiting frame 330 further includes a plurality of supporting ribs 333 circumferentially disposed at intervals on the outer side wall of the main frame 331, each supporting rib 333 elastically abuts against the inner wall of the charger housing 100, so that, on one hand, the contact area between the limiting frame 330 and the charger housing 100 is reduced, and the serious wear of the main frame 331 and the charger housing 100 is prevented during installation, and on the other hand, the limiting frame 330 is convenient to take out, because the main frame 331 and the inner wall of the charger housing 100 are separated by the supporting ribs 333, when taking out, a tool can be inserted into the gap between the main frame 331 and the inner wall of the charger housing 100 to clamp the main frame 331, so that the main frame 331 is locked, and smooth taking out can be.

Referring to fig. 1 and 2, preferably, the outer edge of the end of each support rib 333 facing the insertion hole 101 is provided with a guide slope 303. Therefore, the installation is convenient and smooth, and the clamping or scraping condition is effectively prevented from occurring during installation.

Referring to fig. 1 and fig. 2, preferably, the main frame 331 has a socket 304 for inserting an end of the circuit board 200 at an end surface opposite to the circuit board 200. Thus, on the one hand, the stability of the circuit board 200 is improved, and on the other hand, the overall structure is more compact, so that the vehicle-mounted charger 1 is more miniaturized.

Specifically, two sockets 304 are provided, and the circuit board 200 is simultaneously plugged into the two sockets 304.

Referring to fig. 1 and fig. 2, further, a connection end portion of the elastic element 320 opposite to the circuit board 200 is transversely inserted into the circuit board 200, and an end surface of the limiting frame 300 opposite to the circuit board 200 is provided with an avoiding opening 305 for avoiding the connection end portion. Thus, the spacing frame 300 is prevented from positionally interfering with the connection parts on the circuit board 200.

Referring to fig. 1 to 4, in particular, the connection end 321 of the elastic element 320 opposite to the circuit board 200 includes at least one U-shaped portion 3211 connected together in parallel, the circuit board 200 is provided with at least one first opening (not shown) at an end thereof, and each U-shaped portion 3211 is transversely inserted into one first opening, so as to connect the elastic element 320 and the circuit board 200.

The connection end 321 of the elastic element 320 opposite to the circuit board 200 further includes a tail portion 3212 connected to the U-shaped portion 3211 and far away from the main body of the elastic element 320, the circuit board 200 is provided with a second opening (not shown) at an end thereof, and the tail portion 3212 is inserted into the second opening.

In this embodiment, the connection end 321 of the elastic element 320 opposite to the circuit board 200 includes a U-shaped portion 3211 and a tail portion 3212 connected to the U-shaped portion 3211, both of which are transversely inserted into the end of the circuit board 200, so as to achieve electrical connection and improve connection stability.

Referring to fig. 1 and fig. 3, the positive bullet 310 includes a main body 311 having a U-shaped cross section and a locking plate 312 formed by extending an opening end of the main body 311 in a circumferential direction in a diverging manner, the main body 311 is inserted into the insertion hole 101 of the charger housing 100, the locking plate 312 is located in the charger housing 100 and can be locked at the insertion hole 101, and an end of the elastic element 320 is inserted into the main body 311 and elastically abuts against an inner wall of the main body 311.

Preferably, the end surface of the main body 311 opposite the detent plate 312 includes a tapered surface 306 and a contact surface 307 at the apex of the tapered surface 306. Thus, on the one hand, quick positioning and installation can be realized through the tapered surface 306, and on the other hand, the positive bullet 310 is more effectively prevented from being blocked.

Referring to fig. 1, an embodiment of the present invention further provides an on-board charger, where the on-board charger 1 includes a charger housing 100, a circuit board 200 installed in the electrical appliance housing, and the above-mentioned on-board charger positive electrode connection structure, the charger housing 100 is provided with an insertion hole 101 at its insertion end, and the on-board charger positive electrode connection structure is inserted in the insertion hole 101 and electrically connected to the circuit board 200.

In this embodiment, through applying the above-mentioned vehicle-mounted charger positive pole to connect electric structure on vehicle-mounted charger 1, improve vehicle-mounted charger 1 safety in utilization on the one hand, on the other hand can effectively avoid appearing the outage condition, improves the user experience nature to its.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A positive electrode power connection structure of a vehicle-mounted charger comprises a charger shell and a circuit board arranged in the charger shell, wherein a plug-in hole is formed in a plug-in end of the charger shell; one end of the elastic piece is connected with the circuit board, and the other end of the elastic piece elastically props against the positive warhead; the limiting frame is installed in the charger shell, and the electric connection end of the positive bullet is exposed out of the charger shell when the positive bullet compresses the elastic piece until abutting against the limiting frame.

2. The vehicle-mounted charger positive electrode connection structure according to claim 1, wherein the limiting frame comprises a main frame body having a through cavity and a sliding joint rib connected to an outer side wall of the main frame body, the elastic member is inserted into the through cavity, and the main frame body is installed in the charger housing by the sliding joint rib in sliding joint with the charger housing.

3. The electrical connection structure for the positive electrode of the vehicle-mounted charger according to claim 2, wherein the main frame has a side opening along a length direction of the side wall for the main frame to elastically expand and contract, and an outer side wall of the main frame elastically abuts against an inner wall of the charger housing.

4. The vehicle-mounted charger positive electrode connection structure as claimed in claim 3, wherein the limiting frame further comprises a plurality of supporting ribs circumferentially arranged at intervals on the outer side wall of the main frame, and each supporting rib elastically abuts against the inner wall of the charger housing.

5. The vehicle-mounted charger positive electrode connection structure according to claim 4, wherein an outer edge of an end portion of each of said support ribs facing said plug hole is provided with a guide slope.

6. The vehicle-mounted charger positive electrode connection structure according to any one of claims 2 to 5, wherein an end face of the main frame body opposite to the circuit board is provided with a socket into which an end portion of the circuit board is inserted.

7. The vehicle-mounted charger positive electrode connection structure according to claim 1, wherein a connection end portion of the elastic member, which is opposite to the circuit board, is transversely inserted into the circuit board, and an avoidance port for avoiding the connection end portion is provided in an end surface of the limiting frame, which is opposite to the circuit board.

8. The vehicle-mounted charger positive electrode electric connection structure according to any one of claims 1, 2, 3, 4, 5 and 7, wherein the positive electrode bullet comprises a main body with a U-shaped cross section and a locking plate formed by circumferentially and radially extending an opening end of the main body, the main body is inserted into the insertion hole of the charger housing, the locking plate is located in the charger housing and can be locked at the insertion hole, and an end of the elastic member is inserted into the main body and elastically abuts against an inner wall of the main body.

9. The vehicle-mounted charger positive electrical connection structure of claim 8, wherein an end surface of the main body opposite to the locking plate comprises a tapered surface and a contact surface at an apex of the tapered surface.

10. An on-vehicle charger, characterized in that, the on-vehicle charger includes charger shell, install in the circuit board in the electrical apparatus shell and the on-vehicle charger positive pole of any claim 1 to 9 connects electric structure, the charger shell is seted up the spliced eye at its grafting end, on-vehicle charger positive pole connects electric structure and inserts in the spliced eye and with circuit board electric connection.