Vehicle-mounted charging deviceTechnical field
The utility model relates to a kind of charging unit, relates in particular to a kind of plug-in type power supply ejector that utilizes vehicle-mounted Cigarette lighter for the electrically-charged portable charger of electronic product.
Background technology
The plug that is used for car direct current power supply at present is made according to automobile cigarette lighter jack internal diameter usually, contacts with the vehicle power center contact and fixes by the power supply lock pin, generally is made into the plastic cylinder that forms.This car charging source plug volume is bigger, generally can only serve as the peripheral hardware accessory of electric equipment products, is unfavorable for the micro-miniaturisation of car charger product and portable.
Summary of the invention
For solving problem and the defective that exists in above-mentioned, the utility model provide a kind of be easy to portable, be convenient to operate, be easy to the little vehicle-mounted charging device of volume after folding and the folding.
The utility model is achieved through the following technical solutions:
A kind of vehicle-mounted charging device that the utility model is related comprises:
Comprise housing (1,4), positive contact (9), anodal elastic element (10), centering block (5) and negative pole elastic element (12), described housing (1) connects as one by fixed parts (8) with housing (4); Described positive contact (9) and anodal elastic element (10) are installed in the draw-in groove (102) in the housing (1), and positive contact (9) links together with anodal elastic element (10), and stretch along the length direction of housing; Described centering block (5) comprises two at least, and is installed in the both sides in the housing respectively; Described negative pole elastic element (12) is arranged on the middle and upper part in the housing.
Described vehicle-mounted charging device also comprises a vehicle-mounted Cigarette lighter (200), and a vehicle-mounted Cigarette lighter center contact (220) is set in vehicle-mounted Cigarette lighter (200), and is electrically connected between the positive pole of this vehicle-mounted Cigarette lighter center contact (220) and the described positive contact (9); Be electrically connected between described vehicle-mounted Cigarette lighter (200) inwall negative pole and the described centering block (5).
Described centering block (5) is rotation folding centering block, and centering block (5) is provided with axis hole (11).
When described centering block (5) is folding state, be hidden in the cavity of housing (1) and housing (4) formation; When described centering block (5) is deployed condition, contact, and extruding negative pole elastic element (12) makes centering block (5) and described vehicle-mounted Cigarette lighter (200) inwall closed contact with the inwall of vehicle-mounted Cigarette lighter (200).
Described vehicle-mounted charging device also comprises torsion spring (6), Connection Element (7), wire fuse (2) and fuse lid (3), described torsion spring is arranged on the both sides in the housing, and goes up axis hole (11) and the centering block (5) that the turning cylinder (101) that is provided with and centering block (5) go up setting by housing (1) and connect as one; Described Connection Element (7) is arranged on the middle part in the housing, and the two ends of Connection Element (7) are connected to anodal elastic element (10) and wire fuse (2).
Described wire fuse (2) also is connected with an elastic element (13) elasticity that is provided with in the housing.
The top of described wire fuse (2) also is provided with a fuse lid (3), and closed contact is an one between this fuse lid (3) and the described housing (4).
The beneficial effect of the technical scheme that the utility model provides is:
The utility model can serve as the charging connecting device of drawing power supply from vehicle-mounted Cigarette lighter; When positive contact withdrawal and centering block rotated folding, shared space was little and be convenient to collect.
Description of drawings
Fig. 1 is the utility model inner structure scheme drawing;
Fig. 2 is the utility model centering block structural representation;
Fig. 3 is the utility model housing and fuse lid connection diagram;
Birds-eye view when Fig. 4 is the utility model expansion;
Birds-eye view when Fig. 5 is the utility model folding;
Fig. 6 is along the section-drawing of A-A direction among Fig. 4;
Fig. 7 is along the section-drawing of B-B direction among Fig. 5;
Fig. 8 is along the section-drawing of C-C direction among Fig. 7;
Fig. 9 is the generalized section before the utility model embodiment stretches into vehicle-mounted Cigarette lighter;
Figure 10 is the generalized section of the utility model embodiment when stretching into the work of vehicle-mounted Cigarette lighter;
Figure 11 is the external overall structural representation after the utility model assembling.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model embodiment is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, showed structure of the present utility model, this structure comprises housing 1 andhousing 4, positive contact 9, anodalelastic element 10,centering block 5 and negative poleelastic element 12, and wherein, housing 1 connects as one by fixed parts 8 withhousing 4; Described positive contact 9 and anodalelastic element 10 are installed in the draw-in groove in the housing 1, and positive contact 9 and anodalelastic element 10 link together by elasticity, and can be flexible along the length direction of housing; Describedcentering block 5 comprises two at least, and is installed in the both sides in the housing respectively; Described negative poleelastic element 12 is arranged on the middle and upper part in the housing.Also be provided with axis hole 11 (as shown in Figure 2) on the describedcentering block 5, and theaxis hole 11 that is provided with on turning cylinder that is provided with on effect by torsion spring 6 and the housing and the centering block connects as one centeringblock 5 and turning cylinder.Described vehicle-mounted charging device also comprises wire fuse 2 andfuse lid 3, and wherein, an interior elastic element 13 elasticity of wire fuse 2 and housing are connected closed contact (as shown in Figure 3) betweenfuse lid 3 and the describedhousing 4.
As Fig. 4, Fig. 5, Figure 6 and Figure 7, birds-eye view when the birds-eye view when having showed of the present utility model launch respectively, folding, the section-drawing of B-B direction when the section-drawing of A-A direction and folding when launching, describedcentering block 5 is for rotating the folding centering block, wherein, when centering block is folding state, be hidden in the cavity of housing and housing formation; When centering block is deployed condition, effectlower swaying block 5 turningcylinder 101 rotations on housing 1 at torsion spring 6 are opened, positive contact 9 flicks under the effect ofelastic element 10, positive contact 9 is connected in wire fuse 2 by anodal elastic element and Connection Element, and positive contact 9 and anodalelastic element 10 are installed in the draw-ingroove 102 in the housing 1.Described wire fuse 2 also with housing in the elastic element 13 that is provided with carry out elasticity and be connected, and also be provided with negative poleelastic element 12 at the middle part of housing.When described centering block is deployed condition, contact, and extruding negative pole elastic element makes centering block and described vehicle-mounted Cigarette lighter inwall closed contact with the inwall of vehicle-mounted Cigarette lighter.
As shown in Figure 8, showed the section-drawing of C-C direction among Fig. 7,housing 4 is an one withfuse lid 3 closed contacts, and anodalelastic element 10 is installed in the interior draw-in groove of housing.
As shown in Figure 9, showed the generalized section before embodiment stretches into vehicle-mounted Cigarette lighter 200, one vehicle-mounted Cigarettelighter center contact 220 is set in vehicle-mounted Cigarette lighter 200, centering block pushes vehicle-mounted Cigarette lighter 200 inwalls and negative pole elastic element, continue then to be inserted into thecenter contact 220 that positive contact touches vehicle-mounted Cigarette lighter inwards, make centering block and vehicle-mounted Cigarette lighter 200 inwall closed contacts.Be electrically connected between the positive pole of described vehicle-mounted Cigarettelighter center contact 220 and the described positive contact; Be electrically connected between described vehicle-mounted Cigarette lighter 200 inwall negative poles and the described centering block.
As shown in figure 10, showed the generalized section when this embodiment stretches into the work of vehicle-mounted Cigarette lighter, utilize vehicle-mountedCigarette lighter 200 to be the plug-in type power supply ejector of the electrically-charged portable charger of electronic product, and a vehicle-mounted Cigarettelighter center contact 220 is set in vehicle-mounted Cigarette lighter 200.
As shown in figure 11, showed the external overall structure after the utility model assembling, housing 1 is fixed together by screw 8 withhousing 4, andhousing 4 forms an integral body with housing 1 also and after carrying out closed contact between thefuse lid 3;Centering block 5 by its setting axis hole and housing 1 on the turning cylinder that is provided be connected in the housing.Positive contact 9 is connected in the elastic element in the housing, and positive contact 9 is connected in the draw-in groove of back in housing flexible in the elastic range of elastic element with elastic element.
The above; it only is the preferable specific embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.