CN2783537Y - Inserting fastening internal cell - Google Patents

Abstract

The utility model relates to an inserting fastening type built-in battery, which comprises two metal shell bodies, a soft packing lithium electric core, an external terminal which is composed of a contact sheet component and a circuit protective plate, and a locking device for limiting and locking the external terminal. Bonding steps are arranged at the circumferences of the metal shell bodies on a thickness direction of the metal shell bodies. A plurality of tenoning fasteners and other inserting fastening type connecting structures are arranged on the bonding steps. After the soft packing lithium electric core, the locking device and the external terminal are arranged in concave cavities of the metal shell bodies, two parts of the metal shell bodies are mutually and tightly locked by the bonding steps and the tenoning fasteners, and the soft packing lithium electric core, the external terminal and the locking device are fixed in the concave cavities. A plurality of inserting type lock fasteners arranged by the metal shell bodies cause the inserting fastening type built-in battery and a device in the inserting fastening type built-in battery to be very convenient to install. The self stiffness of the inserting fastening type built-in battery is enhanced, and various elements of the inserting fastening type built-in battery can be mutually and tightly locked. Due to the fact that the structure of the inserting fastening type built-in battery is compact, space occupied by the inserting fastening type built-in battery is reduced, and the unit volume capacity of the inserting fastening type built-in battery is enhanced.

Description

A kind of eye-splice-type internal battery of specification

Technical field

The utility model relates to a kind of internal battery that uses in the digital electronic goods, is that a kind of battery and electronic product of can making easily rolled over dress specifically, and can improves a kind of battery of electronic product space utilization.

Background technology

The shell of its electric core body of internal battery that uses in the digital electronic goods all is to make of metal at present, has higher rigidity, and the internal battery structural design also all designs by this type of electric core.For the softer flexible package lithium cell of electric core, on the internal battery structural design, must improve, with the rigidity that improves internal battery itself with dwindle its shared space as far as possible to improve its volume capacity coefficient.

The utility model content

The purpose of this utility model provides a kind of internal battery, and the electric core that this internal battery adopted can be the flexible package lithium cell, must meet simultaneously having than higher rigidity and volume capacity coefficient that required by electronic product wants.

According to a kind of internal battery of above-mentioned purpose design, two parts metal shell before and after this internal battery includes is provided with external terminal and locking device at the head of housing; In metal shell, be provided with lithium battery.External terminal is the core of battery circuit, and it links by circuit protection plate and cell polar ear, and constitutes the lead-out terminal of power supply; External terminal is to insert among the locking devices by two triangle plastic cement beads of its side, and is by four flexure strips in the locking device that it is fixing from the four sides, and by four banking stops in the metal shell front portion it compressed.Locking device is the coupling components of internal battery and electronic product, also is the parts that link of metal shell and external terminal in the internal battery inside; Locking device is connected with the tenon button of metal shell by its jointing holes, thereby is fixed in the metal shell.Metal shell is two involutory before and after its thickness direction, involutory sidewall is provided with the overlap joint step that is complementary mutually, on the overlap joint step, be provided with the structure that is connected and fixed that tenon button or negative and positive butt joint button or plug-in card connect form, front and back two parts of metal shell are coupled to each other by overlap joint step and the card insert type junction button that is provided with on the sidewall, and lithium cell, external terminal, locking device are clipped in wherein.Two sides are connected with forward and backward metal shell by double faced adhesive tape before and after the lithium cell.

The utility model battery case adopts forward and backward or left and right two metal shells, a plurality of plug-in type snap closes of metal shell periphery design make battery and interior device thereof install very convenient, and improved the rigidity of internal battery self, and the multiple element of internal battery tightly can have been pinned; Because having dwindled internal battery takes up space, and has improved battery unit volume capacity.

Description of drawings

Accompanying drawing 1 is the schematic perspective view after the utility model assembling; Accompanying drawing 2 is exploded view of accompanying drawing 1; Accompanying drawing 3 is partial schematic sectional view of accompanying drawing 1; Accompanying drawing 4 is the local cross-sectional schematic in the utility model external terminal eye-splice location; Accompanying drawing 5 is assembly structure cross-sectional schematic that overlap joint step and tenon buckled between two metal shells of the utility model; Accompanying drawing 6 is that tenon spiral-lock distribution structure is analysed and observe and shown and hand over intention between the utility model locking device and metal shell.

Embodiment

The parts of each label representative are as the back in the accompanying drawing: external terminal 1, locking device 2, metal shell front portion 3, lithium cell 4, cell polar ear 41, metal shell rear portion 5, back locator card 6, tenon button hole 7, triangular flanges 8, elasticity card 9, back location notch 10, prelocalization groove 11, banking stop 12, prelocalization card 13, tenon buckle 14, preceding double faced adhesive tape 17, back double faced adhesive tape 18, groove 19, contact chip assembly 20, circuit protection plate 21.

Accompanying drawing 1～3 has provided assemble sequence of the present utility model and design sketch.Among the figure, the visible part of contact chip assembly has electrode contact plate assembly 20, is provided with triangular flanges 8 at the two ends of electrode contact plate assembly 20, and electrode contact plate assembly 20 and assembly parts thereof and circuit protection plate 21 have constituted external terminal 1.External terminal 1 is installed on the bar shaped locking device 2, and the inner chamber height of the height of locking device and battery container adapts.On locking device 2, have a groove 19 that is complementary with external terminal 1, the profile of groove 19 and the contact chip assembly 20 in the external terminal adapt, and also are provided with at the two ends of groove 19 and triangular flanges 8 supporting two groups totally four location elasticity card 9 (see figure 3)s.This location elasticity card has promptly limited the left and right string of external terminal assembly moving also to have limited forward and backward string moving as can be seen; Simultaneously the locking device upper surface also have with battery container front portion 3 on the prelocalization groove 11 of prelocalization card 13 couplings; Back location notch 10 with back locator card 6 coupling on the battery container rear portion 5.Among Fig. 4, electric core is a flexible package lithium cell 4, its with the metal battery housing between adopt before double faced adhesive tape 17, back double faced adhesive tape 18 is connected and fix, cell polar ear 41 should connect by the electrode pair of the circuit protection plate 21 in the external terminal.The metal battery housing is divided into forward and backward two 3 of prolonging thickness direction, 5 or upper and lower two.The sidewall of piece housing 3 adopts the step overlap edge before in the illustrated example, suitable location punching press on overlap edge has sticks up outside whole but a plurality of tenons that root still links to each other with the battery shell wall buckle 14, be positioned on the sidewall of back corresponding housing 5 with a plurality of tenon button holes 7 that it is complementary, and two housing correspondences are mated up and down.In the illustrated example down the piece housing be box body complete substantially, that the complete section face is ㄩ shape, but the front end of last piece housing then have with external terminal in the supporting strip breach of contact chip assembly 20, promptly four jiaos of places are provided with the banking stop 12 that presses down on the both sides of this strip breach, banking stop 12 is pushed down two triangular flanges that are provided with in the external terminal, so external terminal 1 is fixed among locking device and the metal shell simultaneously.The locking device surface be provided with location notch 10 and prelocalization groove 11 behind two kinds of location notchs respectively with the punching press of following piece surface of shell after the back locator card 6 that inwardly sticks up, the locator card 13 that inwardly sticks up after the punching press of last piece surface of shell is complementary, and thus locking device is fixed in the metal shell.So far, the assembly of lithium cell and locking device, external terminal is put within the cavity of the metal shell first half, and with double faced adhesive tape lithium cell and metal shell are bonded together, the triangular flanges at external terminal contact chip assembly two ends is also blocked from above by four banking stops of four jiaos of the anterior strip breach of metal shell.

Fig. 5 further gives the annexation of having shown after a plurality of plug-in type tenon spiral-locks that are provided with on metal electrolyte cell housing middle front part and the rear portion are joined.During assembling, external terminal inserts in the locking device and tentatively is fixed on the locking device, and flexible package lithium cell and lug thereof are by connecting with the electrode of circuit protection plate in the external terminal; When covering metal battery housing front and rear part, pack into the box chamber of rear portion housing of anterior overlap joint step cover, the tenon button that is provided with around the overlap joint step then inserts in the button hole that is complementary of piece housing wall setting down simultaneously, two metal shells are connected with the tenon button that is complementary by the overlap joint step simultaneously up and down, make the plug-in type snap close naturally with upper and lower two lockings of housing, battery container then cooperates up and down naturally locking device to be pressed tightly to be clamped and external terminal is also simultaneously locked, promptly is sandwiched in the cavity that forms between the metal shell front and rear part simultaneously; The flexible package lithium cell adopts double faced adhesive tape to be fixed on the battery container inner cavity surface.

Fig. 6 further illustrates locking device, and the tenon and the button thereof of two sidewalls are clamped and are fixed therein up and down by battery container simultaneously.When promptly the overlap joint step of piece 3 entered under the metal shell piece 5 on metal shell, the tenon button 6,13 that is provided with on by upper and lower two housings in 10,11 whiles of button hole of locking device upper surface setting blocked, and locking device is fixed among the metal shell.

During concrete the assembling, the circuit protection plate in the external terminal assembly connects with the weldering of the lug of lithium cell, and puts into the cavity that is positioned at the lithium cell head after the counter-rotating; The groove 19 that is provided with on locking device 2 is for 20 insertions of external terminal contact chip assembly, and totally four location elasticity cards of a group of being provided with at the groove two ends is the Elastic plastic-rubber sheet, and its triangular flanges with contact chip assembly two ends in the external terminal is clamped simultaneously from the four sides; Then, the external terminal assembly is fixed among the cavity of lithium cell head simultaneously with locking device.

Claims (7)

1, a kind of eye-splice-type internal battery comprises battery container, is provided with soft electric core and protective circuit plate or module in housing, and the electrode external terminal of battery is by the protective circuit plate or module is corresponding with cell polar ear electrically connects, and it is characterized in that

Also include the locking device that is fixed on the battery container, protective circuit plate or module are assemblied on the locking device, and the electrode external terminal of battery is assemblied in the outer surface of locking device, and the lug of soft electric core connects with the inner surface of locking device.

2, internal battery according to claim 1, it is characterized in that described metal battery housing is at thickness direction up and down or involutory two in front and back, mutually involutory sidewall is provided with the overlap joint step that is complementary, on the overlap joint step, be provided with the tenon button negative and positive butt joint button is arranged or insert, the clamping form be connected and fixed structure.

3, internal battery according to claim 1 and 2, it is characterized in that described metal battery housing rear portion is complete substantially ㄩ body, the anterior ㄩ body that has strip locking device coupling hole for front end, four jiaos in this coupling hole are provided with the elasticity banking stop that presses down, and also are provided with and the prelocalization card on the other box body in this coupling hole.

4, internal battery according to claim 3, the upper surface that it is characterized in that the strip locking device is provided with the prelocalization groove that mates with the prelocalization card, have the groove that external terminal is installed at upper surface, be provided with the location elasticity card supporting at the two ends of groove with external terminal.

5, internal battery according to claim 4; it is characterized in that the electrode contact plate in the external terminal is arranged side by side each other; be provided with and locate the triangular flanges of elasticity card coupling at this electrode row's two ends; electrode row be assemblied on the circuit protection plate, and insert in the jack at locking device two ends at the two ends of circuit protection plate.

6, internal battery according to claim 3 is characterized in that tenon button on the described overlap joint step for to be pressed with button hole a box wall upper punch, the tenon that sticks up outside the relevant position punching press on another box wall has.

7, internal battery according to claim 3 is characterized in that adopting double faced adhesive tape to be connected with fixing between the electric core of metal electrolyte cell housing and flexible package.

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