CN209516690U - The big vehicle charger of radiating efficiency high power - Google Patents

Abstract

The big vehicle charger of a kind of good heat dissipation effect, the radiating efficiency high power that energy loss is small, production is simple and stability is good.Including shell, circuit board and USB interface, the cathode elastic slice being connected between the rear shell of shell and circuit board cathode is made of the three parts of integral structure, plate portion, bending elastic plate portion and the radiation conductive portion pressed on rear shell inner wall respectively to connect with circuit board cathode forms, elastic plate portion is bent between plate portion and radiation conductive portion, radiation conductive portion can be enhanced to the elastic force stretched far from plate portion direction.Due to the cathode elastic slice of integral structure, make the ducting capacity of its electric current compared with the prior art in separation assembly cathode elastic slice for greatly improve.In addition, by the way that special chip cooling part is arranged, and can be quickly by the heat derives in IC chip.The intracorporal temperature of shell can be made to be at a normal level, IC chip can be made to export normal power as a result, so that the charger is with high-power outside output.

Description

The big vehicle charger of radiating efficiency high power

Technical field

The utility model relates to a kind of charger, in particular to intelligent powers equipment such as mobile phone, IPAD on a kind of automobile The automobile charger of charging.

Background technique

Currently, people's trip is increasingly dependent on automobile trip, in addition the palms electricity consumption such as the mobile phone of present people, IPAD is set Standby power consumption is big, and as work and life rhythm is increasingly accelerated, people are not intended to waste too on for the charging of the electrical equipments such as mobile phone More time.

Many nominal powerful vehicle chargers, actual power are far below its nominal power, that is to say, that on the market The nominal output power of these vehicle chargers is 5V*2.4A or 5V*3A, but in actual use, output power is much smaller than and is marked Output power, the reason is that, during the charging process, calorific value is excessive for this kind of vehicle charger, causes power loss excessive.It is i.e. real Border output causes output power to reduce, lengthens the charging time significantly, be not achieved fast because increasing the part that electric energy is converted to thermal energy The purpose filled.

In vehicle charger in the prior art, cathode elastic slice be made of fixinig plate 8 and insert-connecting plate 9 (referring to Fig. 7-9 It is shown).

In general, fixinig plate 8 is in the circular arc elastic slice of lower opening, opposite two sides are equipped with hemispheric convex on circular arc elastic slice Point 81, the inboard of salient point 81 are hemispheric pit 82, the fixed hardware shell 1 for being connected to vehicle charger 10 of the fixinig plate 8 Interior, the 81 elasticity pressure touching of salient point is on the inner wall of hardware shell 1.

Insert-connecting plate 9 is made of the inserted sheet 91 and contact chip 92 of integral structure, inserted sheet 91 welding on the circuit board 2 and and circuit 2 cathode of plate connects, and 92 side of contact chip is connect with inserted sheet 91, and other side shape is similar to the fixinig plate 8, in the contact chip 92 On opposite sides also be provided with the hemispherical projections 93 in the pit 82 that can be socketed on fixinig plate 8.It is somebody's turn to do when by the insertion of circuit board 2 When in hardware shell 1, the inserted sheet 91 of the insert-connecting plate 9 partially passes through the front end that fixinig plate 8 is placed in hardware shell 1, and the insert-connecting plate 9 Contact chip 92 overlapped with fixinig plate 8, the protrusion 93 on contact chip 92 just deducts in the pit 82 of fixinig plate 8, Between elasticity pressure touching link together.The structure can facilitate the conducting that circuit board 2 is inserted into hardware shell 1 and realizes circuit, again The heat that circuit board 2 generates successively hardware shell 1 can be imported by inserted sheet 91, contact chip 92, fixinig plate 8 to distribute to external empty Between.The requirement that safety vehicle fills is connected up to by the plug of fixinig plate 8 and insert-connecting plate 9.

Above-mentioned fixinig plate 8 is made with insert-connecting plate 9 by hardware elastic slice.

Deficiency existing for above-mentioned cathode elastic slice 4 are as follows:

1) it is made of separately positioned fixinig plate 8, insert-connecting plate 9, and insert-connecting plate 9 is by 92 structure of inserted sheet 91 and contact chip At in this way, and fixinig plate 8 and 9 joint of insert-connecting plate are substantially point contact (protrusion 93 and fixinig plate i.e. on contact chip 92 Connect between pit 82 on 8 for hemispherical), fixinig plate 8 is contacted in a manner of point type with the inner wall of hardware shell 1 again, in this way, By circuit board 2 to many places contact resistance is provided between hardware shell 1, when High-current output, these contact resistances can be incited somebody to action Part power consumption is thermal energy.

2) it is made of multiple separation units, so that fabrication schedule is cumbersome, simultaneously, it is also difficult to reduce manufacturing cost.

3) component, which increases, is unfavorable for environmental protection and saving material resources.

Summary of the invention

The technical problem to be solved by the present invention is to provide a kind of good heat dissipation effect, energy loss is small, production is simple and The big vehicle charger of the good radiating efficiency high power of stability.

In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:

The big vehicle charger of the radiating efficiency high power of the utility model, being made by metal material including the charger Shell, the USB interface that is mounted on the intracorporal circuit board of shell and is arranged on housing bottom face, the shell is by fixing positive electrode cap Front housing and rear shell as cathode constitute, it is characterised in that: be connected to cathode elastic slice between rear shell and circuit board cathode by The three parts composition of integral structure, the plate portion respectively to connect with circuit board cathode are bent elastic plate portion and press in rear shell Radiation conductive portion composition on inner wall, the bending elastic plate portion can enhance institute between plate portion and radiation conductive portion Radiation conductive portion is stated to the elastic force stretched far from plate portion direction.

The plate portion is plate；The bending elastic plate portion is to be connected to plate portion two sides and structure and shape phase Same prone anterior arch portion；The radiation conductive portion is by substrate and is set on the substrate and hemispherical or truncated cone-shaped Male part is constituted, and the male part is placed in the outside of substrate.

The radiation conductive portion is vacantly placed in the outside of the circuit board, and male part elasticity thereon is pressed in the rear shell Inner wall on.

The cooling fin that the heat that IC chip can be generated by being additionally provided in the rear shell guides, the cooling fin are in Z-shaped, One side is tightly attached to the surface of IC chip, and another side can press on the inner wall of rear shell, which is connected to USB and connects On the metal connection shell of mouth.

The vehicle charger of the utility model can effectively improve dissipating for the charger using the cathode elastic slice of integral structure Thermal effect, due to the cathode elastic slice of integral structure, make the ducting capacity of its electric current compared with the prior art in separation assembly it is negative (contact resistance reduction) is greatly improved for the elastic slice of pole.In addition, by the way that special chip cooling part is arranged, and can be quickly by IC core The heat derives of on piece.When giving electrical equipment (such as mobile phone, palm PC or learning machine etc.) quick charge, on circuit board Main component IC chip and inductance can generate a large amount of heat.The combination of above-mentioned cathode elastic slice and IC cooling fin, can make in shell Heat quickly exported by the metal shell of shell and USB interface, be at a normal level the intracorporal temperature of shell, as a result, may be used IC chip is set to export normal power, so that the charger is with high-power outside output.

Detailed description of the invention

Fig. 1 is the appearance schematic diagram of the vehicle charger of the utility model.

Fig. 2 be Fig. 1 in AA to cross-sectional view.

Fig. 3 is the right view of Fig. 1.

Fig. 4 is the cathode elastic slice schematic diagram in Fig. 2.

Fig. 5 is the schematic diagram of cathode elastic slice installation on circuit boards.

Fig. 6 is the schematic diagram of the circuit board and shell before assembly.

Fig. 7 is 1 schematic diagram of component of cathode elastic slice in prior art vehicle charger.

Fig. 8 is the schematic diagram that the component 1 of cathode elastic slice and component 2 are assembled together in prior art vehicle charger.

Fig. 9 be assembly before cathode elastic slice in the prior art, circuit board and shell schematic diagram.

Appended drawing reference is as follows:

Shell 1, rear shell 12, circuit board 2, positive electrode cap 3, positive pole bar 31, positive spring 32, cathode elastic slice 4, is inserted front housing 11 Plate portion 41, bending elastic plate portion 42, radiation conductive portion 43, male part 44, USB interface 5, IC chip 6, cooling fin 7, fixinig plate 8, Salient point 81, pit 82, insert-connecting plate 9, inserted sheet 91, contact chip 92, protrusion 93, charger 10.

Specific embodiment

As shown in figures 1 to 6, the big vehicle charger 10 of the radiating efficiency high power of the utility model is made by metal material Shell 1, the circuit board 2, positive electrode cap 3 and the cathode elastic slice 4 that are mounted in shell 1 constitute, be equipped with extremely on the bottom face of shell 1 A few USB interface 5.

1, shell 1

Shell 1 is made of front housing 11, rear shell 12 and rear cover, and front housing 11 can be structure as a whole with rear shell 12, can also pass through spiral shell The line structure that is screwed on is fixed together, and rear cover is fixed on the rear end face of rear shell 12 by the structure that is screwed on, and the USB interface 5 is installed It is covered after.

The front end face of front housing 11 is equipped with the hole location for installing fixed positive electrode cap 3.

2, positive electrode cap 3

Positive electrode cap 3 is linked together by positive pole bar 31 with the positive terminal on circuit board 2, positive electrode cap 3 and circuit board 2 it Between positive pole bar 31 on be socketed with positive spring 32.

3, circuit board 2

Circuit board 2 is internal after penetrating from the front to the back, and plate face is vertical with the cross section of rear shell 12, in the tail of the circuit board 2 A USB interface 5 is respectively set in the front and back in portion.

4, cathode elastic slice 4

The cathode elastic slice 4 of the utility model vehicle charger 10 is made of the three parts of integral structure, respectively plate portion 41, elastic plate portion 42 and radiation conductive portion 43 are bent.

1) plate

Plate portion 41 is tabular, is plugged in the cathode jack on circuit board 2, lower end and circuit board 2 Cathode be welded and fixed, end is vertically in the upper surface of circuit board 2 thereon.

2) it is bent elastic plate portion 42

It is two sections, is separately connected the two sides in plate portion 41, i.e., it is the extension from the upper end in plate portion 41 to side.It is curved Bent elastic plate portion 42 is the front arcuate to extend back again to front curve.Front arcuate can enhance the radiation conductive portion 43 to far from slotting The elastic force of 41 direction of plate portion stretching, extension.

3) radiation conductive portion 43

Radiation conductive portion 43 is negative the tail end of plate elastic slice, connects with bending drag board portion, by substrate and male part 44 It constitutes, male part 44 is hemispherical or truncated cone-shaped the protrusion being set on the outside of the substrate.

When installation, on the circuit board 2 by plate welding, effect of the radiation conductive portion 43 in bending 42 elastic force of elastic plate portion It is lower to the outside of circuit board 2 open, and then by install the cathode elastic slice 4 circuit board 2 be inserted into shell 1 in when, cathode bullet 44 elasticity of male part in the radiation conductive portion 43 on piece 4 presses on 12 inner wall of rear shell.

The conducting of circuit loop can be realized in the structure, and the heat on circuit board 2 can be passed through cathode elastic slice 4 in time and led Enter shell 1, achievees the purpose that heat dissipation.

5, IC cooling fin 7

In order to which the heat for generating the IC chip 6 on circuit board 2 exports in time, cooling fin 7 is additionally provided in rear shell 12, it should Cooling fin 7 is in Z-shaped, and one side is tightly attached to the surface of IC chip 6, and another side can press on the inner wall of rear shell 12, The other side has end to be connected on the metal connection shell of USB interface 5, thus, further function as heat spreading function.

The whole parts that above-mentioned cathode elastic slice 4 is structure as a whole, can achieve the contact engaging and separating force of safety requirement, use general The material production of logical SK7, material cost are lower.The hardness of the material is 140-180HV, after punch forming, then passes through heat treatment The hardness of cathode elastic slice 4 after molding is handled to 480-540HV, makes full use of the elastic force in bending elastic plate portion 42 scattered to increase The elastic force in thermal conducting portion 43.

The utility model also has the advantage that

4 structure of cathode elastic slice of integral structure is simple, convenient for production, manufacturing cost is low.Using economical and practical material, and And producing line is easy production, it is only necessary to after stamping, through Overheating Treatment, color required for us then be electroplated into, that is, complete Elastic slice all processes.So this elastic slice, that is, simple and practical.So the cathode elastic slice 4 of the utility model both facilitates life It produces, and saves material and artificial, reached the requirement of environmental protection.

Claims (4)

1. a kind of vehicle charger that radiating efficiency high power is big, the shell made by metal material including the charger (10) (1), the circuit board (2) being mounted in shell (1) and the USB interface (5) being arranged on shell (1) bottom face, the shell (1) Is made of the front housing (11) of fixed positive electrode cap (3) and the rear shell (12) as cathode, it is characterised in that: be connected to rear shell (12) and Cathode elastic slice (4) between circuit board (2) cathode is made of the three parts of integral structure, respectively with circuit board (2) cathode phase Plate portion (41), bending elastic plate portion (42) and the radiation conductive portion (43) pressed on rear shell (12) inner wall connect forms, institute Bending elastic plate portion (42) is stated between plate portion (41) and radiation conductive portion (43), the radiation conductive portion can be enhanced (43) to the elastic force stretched far from plate portion (41) direction.

2. the big vehicle charger of radiating efficiency high power according to claim 1, it is characterised in that: the plate portion It (41) is plate；The bending elastic plate portion (42) be connected to plate portion (41) two sides and structure and shape it is identical to The anterior arch portion of front curve；The radiation conductive portion (43) is by substrate and is set on the substrate and hemispherical or truncated cone-shaped outer Protrusion (44) is constituted, and the male part (44) is placed in the outside of substrate.

3. the big vehicle charger of radiating efficiency high power according to claim 2, it is characterised in that: the radiation conductive Portion (43) is vacantly placed in the outside of the circuit board (2), and male part (44) elasticity thereon is pressed in the interior of the rear shell (12) On wall.

4. the big vehicle charger of radiating efficiency high power according to claim 3, it is characterised in that: in the rear shell (12) cooling fin (7) that the heat that IC chip (6) can be generated by being additionally provided in guides, the cooling fin (7) are in Z-shaped, one side Face is tightly attached to the surface of IC chip (6), and another side can press on the inner wall of rear shell (12), which is connected to On the metal connection shell of USB interface (5).