CN208368775U - Onboard charger and its elastic piece structure - Google Patents

Abstract

The utility model relates to a kind of onboard charger and its elastic piece structures, onboard charger includes shell and circuit board, elastic piece structure includes the first spring plate being connected on circuit board and the second spring plate for being set in the housing wall, first spring plate includes installing component and the first elastic slice by stretching out at the top of installing component, there are two protrusions for first elastic slice tool, second spring plate includes the second elastic slice and two external contacts for being convexly equipped in second elastic slice both ends respectively, two external contacts stretch out in the side opening of the shell, there is cavity respectively on the inside of two external contacts, when outer contact head is retracted by external force pressure, two projecting elastics are resisted against in the cavity of two external contacts, it is kept in contact first elastic slice and the second elastic slice.In above-mentioned onboard charger and its elastic piece structure, radiated simultaneously by two spring plates, high-efficient, high safety and reliability.And it is compact-sized between two spring plates, it is completely embedded, convenient for assembling.

Description

Onboard charger and its elastic piece structure

Technical field

The utility model relates to onboard charger technical fields, and in particular to a kind of onboard charger and its elastic piece structure.

Background technique

With the extensive use of electronic equipment, since onboard charger is easy to use and easy to carry, in the daily of people It is also had been widely used in life.Currently, portable, hand-held electronic equipment such as mobile phone, plate etc. is at for people's lives One of necessity, these electronic product functional applications are more, and long using the time, power consumption is fast.In order to which the offer of electron product is more square Just it efficiently charges, most of electronic products all uses lithium battery at present.In general, lithium battery charging is needed in constant pressure, perseverance It is completed in the environment of stream, but vehicular power-bottle power supply instability, phenomena such as there are momentary spikes voltages, system switching noise.Thus Promote the extensive use of onboard charger.

It is well known that the capacitance of mobile phone is increasing at present, the time of charging, rate request are getting faster, therefore, When current onboard charger charges, the magnitude of current is larger, and the temperature of charger internal is usually higher, and charger internal heat dissipation way Diameter is mainly that the thermally conductive materials such as some metals transfer out, for example, being transferred out heat by cathode elastic slice.It is vehicle-mounted as a result, to fill Electric appliance charges in use, resulting in cathode elastic slice temperature higher.The excessively high onboard charger service life that will lead to of temperature is low, and And, it is often more important that there is security risk, therefore, many countries weigh the internal and external temperature parameter of onboard charger charging as quality One of amount standard, to reduce security risk.However, existing onboard charger is when in use, it is difficult the temperature of cathode elastic slice It lowers, influences the use and quality safety of product.

Utility model content

In view of this, that it is necessary to provide a kind of radiating efficiencys is high, safe and reliable, features simple structure, the vehicle-mounted of manufacture is facilitated to fill Electric appliance and its elastic piece structure.

A kind of onboard charger elastic piece structure, the onboard charger include charger shell and are installed on charger shell Interior circuit board, the charger shell have side opening, and the elastic piece structure includes being set on circuit board and being electrically connected with circuit board The first spring plate for connecing and the second spring plate for being set in the housing wall, first spring plate include installing component and by mounting portion The first elastic slice stretched out at the top of part, the first elastic slice tool there are two protrusion, second spring plate include the second elastic slice and It is convexly equipped in two external contacts at second elastic slice both ends respectively, two external contacts stretch out in the side of the shell There are cavity in hole, two external contacts insides respectively, and two projecting elastics are resisted against the recessed of two external contacts In chamber, it is kept in contact first elastic slice and the second elastic slice.

Further, the installing component of first spring plate is arc-shaped, and the installing component has one in the middle part of arc A planar portions, absorption when for processing.

Further, second elastic slice one side edge inward slant in the middle part of arc has tabletting, for pressing to or compressing In the first spring plate, the tabletting is the one piece of tabletting inwardly stamped out by the second elastic slice edge.

Further, two end of the second elastic slice has two axially extending perforation, when for assembling described in clamping Second spring plate is inserted into charger shell body.

Further, the circuit board is set there are two jack, and the installing component of first spring plate includes two pins, It is inserted in two jacks respectively.

Further, the installing component of first spring plate is arc-shaped, and side is prolonged in the middle part of the arc of the installing component Stretching has a link block, by the link block along axial connection side by side between first elastic slice and installing component, described the One elastic slice is arc-shaped and consistent with the shape of installing component arc.

Further, two protrusions of first elastic slice axially on size be less than the size of cavity, make described There is axial opposite slide displacement space between second spring plate and the first spring plate.

Further, described charger shell one end has through-hole, for through a positive bullet is gone out, the other end to have Top cover, the circuit board are being equipped with more than two charging interfaces close to top cover one end side by side, and more than two charging interfaces pass through side Face paste is against the main surface of circuit board, and the top cover offers the interface holes for allowing charging interface to stretch out, and second spring plate is logical The external contact stretched out is crossed as cathode spring plate.

Further, the charger shell is an integral molding structure, and the cavity and protrusion are interference fit.

And a kind of onboard charger comprising charger shell and the circuit board being installed in charger shell body, it is described Charger shell has side opening, and the onboard charger shell is equipped with onboard charger elastic piece structure as described above.

In above-mentioned onboard charger and its elastic piece structure, cathode elastic slice is constituted by two spring plates, two spring plates are all It can radiate simultaneously, radiating efficiency is high, improves the security reliability of charger.And by raised and recessed between two spring plates Chamber combines, compact-sized, is completely embedded, convenient for assembling.Further, second elastic slice has one in the middle part of arc and puts down Face, absorption when for processing, to adapt to the demand of current intelligence manufacture, automated manufacturing, by manipulator absorption come into Row assembling, greatly improves the convenience of processing procedure.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the onboard charger of the utility model embodiment.

Fig. 2 is the dimensional decomposition structure diagram of the onboard charger of the utility model embodiment.

Fig. 3 is elastic piece structure stereoscopic schematic diagram in the onboard charger of Fig. 1.

Fig. 4 is elastic piece structure schematic front view in the onboard charger of Fig. 1.

Specific embodiment

The utility model is described in detail below with reference to specific embodiments and the drawings.

A kind of onboard charger 100 and its elastic slice of the utility model embodiment are shown referring to FIG. 1 to FIG. 4, including filled Casing for electric appliances 10 and the circuit board 30 being installed in charger shell 10, the charger shell 10 have side opening 101, the vehicle It carries charger shell and is equipped with onboard charger elastic piece structure 20.

Incorporated by reference to preceding figure refering to Fig. 3 and 4, the onboard charger elastic piece structure 20 of the utility model embodiment is shown, including The first spring plate 21 being electrically connected on circuit board 30 and with circuit board 30 and the second spring plate 22 set on 10 inner wall of shell, First spring plate 21 include installing component 211 and the first elastic slice 215 by being stretched out at the top of installing component 211, described first There are two protrusion 216, second spring plate 22 includes the second elastic slice 225 and is convexly equipped in described second respectively the tool of elastic slice 215 The external contact 226 of two of 225 both ends of elastic slice, two external contacts 226 stretch out in the side opening 101 of the shell 10, and two There is cavity 227 in a external 226 inside of contact respectively, and when external contact 226 is retracted by external force pressure, two described convex 216 resilient abutments are played in the cavity 227 of two external contacts 226, make first elastic slice 215 and the second elastic slice 225 It is kept in contact.

Specifically, second elastic slice 225 is arc-shaped and consistent with the cooperation of 10 inner wall shape of charger shell, and described first The installing component 211 of spring plate 21 is arc-shaped, and the installing component 211 has a planar portions 218 in the middle part of arc, for adding Working hour absorption.

As shown, the circuit board 30 is set there are two jack 31, the installing component 211 of first spring plate 21 includes Two pins are inserted in respectively in two jacks 31.It, will by adsorbing the planar portions 218 of first spring plate 21 when assembling First spring plate 21 is adsorbed by manipulator etc., and pin is inserted on circuit boards, to adapt to current intelligence manufacture, automatic Change the demand of manufacture, the assembling with circuit board carries out always, and ease of assembly greatly improves the convenience of processing procedure.

Further, second elastic slice 225 one side edge inward slant in the middle part of arc has tabletting 229, for pressing to Or it is pressed in the first spring plate 21.Specifically, the tabletting 229 is the one piece of pressure inwardly stamped out by 225 edge of the second elastic slice Piece, i.e. one piece to infolding, for keeping the two combination tighter against the first elastomer 21.

Preferably, second elastic slice, 225 liang of ends have two axially extending perforation 228, which can be Elastic slice is wound.Second elastic slice 225 has outside tension, that is, is resilient outer, outer diameter of elasticity is slightly larger than shell 10 internal diameter.Further, the installing component 211 of first spring plate 21 is arc-shaped, the arc of the installing component 211 Middle part side is extended with a link block 217, passes through the link block 217 between first elastic slice 215 and installing component 211 It is arc-shaped and consistent with the shape of 211 arc of installing component along axial connection, first elastic slice 215 side by side.

Further, the cavity 227 of two external contacts 226 is preferably in cabin shape or bar shaped, along charger shell 10 it is axially extending, in other words be in kidney-shaped.Two protrusions 216 of first elastic slice 215 axially on size be less than it is recessed The size of chamber 227 makes have axial opposite slide displacement space between second spring plate 22 and the first spring plate 21.

In addition, described 10 one end of charger shell has through-hole, for through one out positive bullet 105, other end tool There is top cover 106, the circuit board 30 is being equipped with more than two charging interfaces 32, more than two chargings close to top cover one end side by side Mouth 32 is posted by the main surface of circuit board 30 by side, and the top cover 106 offers the interface holes for allowing charging interface 32 to stretch out 107, second spring plate 22 is used as cathode spring plate by the external contact 226 stretched out.

Preferably, the charger shell is an integral molding structure, and the cavity 227 and protrusion 216 are interference fit, i.e., Two protrusions 216 are less than the width of cavity 227 along the size on section.Raised 216 preferably spherical protrusions, inside are sky Chamber.

In assembling, positive bullet 105 is first loaded onto, then penetrate two perforation 228 with fixture (such as manipulator), it will be described Second elastic slice 225 is clamped and is adjusted by fixture, to protrude into shell 10, external contact 226 is made to stretch out in the shell 10 Side opening 101, while the second elastic slice 225 is pressed in the inner wall of shell 10 by outside tension, then installs again into circuit board 30, The first elastomer 21, then top cover 106 have been fitted on circuit board 30 at this time.

When onboard charger 100 is inserted in cigar lighter, when external contact 226 is retracted inside by external force pressure, two Raised 216 resilient abutment makes first elastic slice 215 and the second bullet in the cavity 227 of two external contacts 226 Piece 225 is kept in contact.Therefore, when the two contacts, the position of first elastic slice 215 and second elastic slice 225 is corresponding, Second elastic slice 225 coats the first elastic slice 215.

It follows that being made up of two spring plates 21,22 negative in above-mentioned onboard charger 100 and its elastic piece structure 10 Pole elastic slice, two spring plates 21,22 can radiate simultaneously, and radiating efficiency is high, improve the security reliability of charger 100.And And combined between two spring plates by protrusion 216 and cavity 227, it is compact-sized, it is completely embedded, convenient for assembling.Further Ground, second elastic slice 225 have a planar portions 218, absorption when for processing in the middle part of arc, to adapt to current intelligence The demand of manufacture, automated manufacturing, is assembled by manipulator absorption, greatly improves the convenience of processing procedure.

It should be noted that the utility model is not limited to above embodiment, creation essence according to the present utility model Mind, those skilled in the art can also make other variations, these variations done according to the creative spirit of the utility model, all Should be included in the utility model it is claimed within the scope of.

Claims (10)

1. a kind of onboard charger elastic piece structure, the onboard charger includes charger shell and is installed in charger shell body Circuit board, the charger shell have side opening, which is characterized in that the elastic piece structure include be set to circuit board on and with electricity First spring plate of road plate electrical connection and be set in the housing the second spring plate of wall, first spring plate include installing component and By the first elastic slice stretched out at the top of installing component, for the first elastic slice tool there are two protrusion, second spring plate includes second Elastic slice and two external contacts for being convexly equipped in second elastic slice both ends respectively, two external contacts stretch out in the shell The side opening of body, there are cavity in two external contacts insides respectively, when outer contact head is retracted by external force pressure, described in two Projecting elastic is resisted against in the cavity of two external contacts, is kept in contact first elastic slice and the second elastic slice.

2. onboard charger elastic piece structure as described in claim 1, which is characterized in that the installing component of first spring plate Arc-shaped, the installing component has a planar portions, absorption when for processing in the middle part of arc.

3. onboard charger elastic piece structure as claimed in claim 2, which is characterized in that second elastic slice is one in the middle part of arc Side edge inward slant has tabletting, and for pressing to or being pressed in the first spring plate, the tabletting is inside by the second elastic slice edge The one piece of tabletting stamped out.

4. onboard charger elastic piece structure as described in claim 1, which is characterized in that two end of the second elastic slice has axis To two perforation of extension, clamped when for assembling in the second spring plate insertion charger shell body.

5. onboard charger elastic piece structure as described in claim 1, which is characterized in that the circuit board is set there are two jack, The installing component of first spring plate includes two pins, is inserted in two jacks respectively.

6. onboard charger elastic piece structure as described in claim 1, which is characterized in that the installing component of first spring plate Arc-shaped, side is extended with a link block in the middle part of the arc of the installing component, between first elastic slice and installing component It is arc-shaped and consistent with the shape of installing component arc along axial connection, first elastic slice side by side by the link block.

7. onboard charger elastic piece structure as described in claim 1, which is characterized in that the raised edge of two of first elastic slice Size in axial direction be less than the size of cavity, make to have between second spring plate and the first spring plate axial relatively sliding Dynamic displacement space.

8. onboard charger elastic piece structure as described in claim 1, which is characterized in that described charger shell one end has logical Hole, for through going out a positive bullet, the other end has a top cover, and the circuit board there are two set side by side close to top cover one end The above charging interface, more than two charging interfaces are posted by the main surface of circuit board by side, and the top cover, which offers to allow, to be filled The interface holes that electrical interface stretches out, second spring plate is by the external contact of stretching as cathode spring plate.

9. onboard charger elastic piece structure as described in claim 1, which is characterized in that the charger shell is integrally formed Structure, the cavity and protrusion are interference fit.

10. a kind of onboard charger comprising charger shell and the circuit board being installed in charger shell body, the charger Shell has side opening, which is characterized in that the onboard charger shell is equipped with vehicle-mounted to be filled as claim 1-9 is described in any item Electric appliance elastic piece structure.