A kind of li battery shell
Technical field
The present invention relates to a kind of li battery shell.
Background technology
Lithium battery refers to the battery containing lithium in electrochemical system, including lithium metal, lithium alloy and lithium ion, lithium polymerization
Thing, develops now with the explosion type of smart mobile phone and tablet personal computer, and the technology of lithium battery is also constantly carrying out technological innovation.
Lithium battery has the advantages that small volume, light weight, environmental pollution are small, also had benefited from for traditional lead accumulator
Above the advantages of, lithium battery is just gradually substituting lead accumulator in electric car industry, UPS and energy-accumulating power station industry turns into main flow.
General lithium battery is being applied when on electronic, is required for being mounted in li battery shell, then set by li battery shell
To put on electric car, lithium battery is fixed in li battery shell by general li battery shell by shell wall and cap, but so
Fixed form lithium battery can be allowed to cause certain impact to cap during vibrations, influence the connection tightness of its cap.
The content of the invention
The technical problem to be solved in the present invention is:A kind of li battery shell for not having to fix lithium battery by lid is provided.
In order to solve the above problems, the present invention includes outer cover body and cap, and described outer cover body is hollow rectangular
Body, one end of the length direction of described cuboid are provided with opening, set in two relative side walls of described cuboid
There are a pair of self-locking devices, described self-locking device includes self-locking plate, drive link and gag lever post, and described self-locking plate is hinged on shell
In the side wall of body, described self-locking plate includes limiting plate and snapping plate, the plane where described limiting plate and snapping plate institute
Plane it is vertical, 90 degree of angles of limiting plate and snapping plate are provided with the direction of opening towards outer cover body, the one of limiting plate
Side is fixedly connected with the side of snapping plate, junction and self-locking plate and the pin joint weight of outer cover body of the limiting plate with snapping plate
Close, limiting plate is located at the inner side of outer cover body, and snapping plate is located at the outside of outer cover body, and described drive link is slidably arranged in outer
In the side wall of shell body, drive link and self-locking plate are located in the same side wall of outer cover body, the length direction of described drive link
Parallel with the length direction of outer cover body, the glide direction of drive link is parallel to the length direction of drive link, described shell sheet
Set in the side wall of body and be provided with spring between fluted, described drive link and outer cover body, when spring in the raw
When, one end of drive link protrudes from the side wall of groove;The other end of drive link is provided with rack, and described gag lever post, which slides, to be set
In the side wall of outer cover body, the length direction of gag lever post is vertical with the length direction of drive link, and the glide direction of gag lever post is put down
Row is in being also equipped with rack on the length direction of gag lever post, described gag lever post, rack and gag lever post on described drive link
On rack connection is engaged with same gear, described pinion rotation is arranged in the side wall of outer cover body, when snapping plate button
When connecing in a groove, the length direction of the plane vertical enclosure body where described limiting plate, described drive link and shell
Spring between the side wall of body is in compressive state, and one end of described gag lever post is projected into outer cover body, described limit
Position plate is vertical with the length direction of outer cover body;When spring in the raw when, described gag lever post does not project into shell sheet
In vivo.
For the ease of snap fastener fishplate bar, card is provided with the facade corresponding with drive link on snapping plate of the present invention
Groove, described outer cover body slide over side walls are provided with switch plectrum, and described switch plectrum is fixedly connected with drive link, works as button
When fishplate bar is snapped onto in described groove, described drive link is inserted into neck, and the depth for defining neck is a, and definition is when biography
Spring between lever and outer cover body in the raw when, the length that one end of drive link protrudes from recess sidewall is b, b
More than a.
For the ease of setting snapping plate and groove, the depth of groove of the present invention is identical with the thickness of snapping plate, when
Snapping plate snapping in a groove when, corresponding side wall flush between described snapping plate and groove.
In order to avoid being seeped water in outer cover body, water-proof sealing strip is provided with the side wall of groove of the present invention.
For the ease of opening snapping plate, torsion spring is provided between self-locking plate and outer cover body of the present invention, works as torsion spring
When in the raw, the length direction of plane and outer cover body where described limiting plate is in non-perpendicular state.
The beneficial effects of the invention are as follows:The stopper slot to match with gag lever post is provided with the lithium battery of the present invention, by lithium
When battery is fitted into outer cover body, the bottom of lithium battery promotes limiting plate to be rotated to the direction away from outer cover body opening, with
Limiting plate be fixedly connected snapping plate at a right angle to close to outer cover body side wall direction rotate, when snapping plate turn to it is close
During drive link, snapping plate is oppressed drive link and slided to the direction away from snapping plate, and the rack drives gear of the drive link other end turns
Dynamic, gear is extended into the stopper slot of lithium battery by the rack drives gag lever post on gag lever post, due to last gag lever post card
In the stage for entering stopper slot, lithium battery is advanced in small distance in outer cover body, therefore can ignore movement and gag lever post is stretched
Enter into influence during neck, when the complete snapping of snapping plate in a groove when, drive link is inserted into the stopper slot of snapping plate, to prevent
Clamping fishplate bar releases.The lithium battery of the present invention can be consolidated lithium battery by self-locking device when being fitted into outer cover body
It is fixed, fastening of the lithium battery vibrations to cap can be avoided to impact, improve the security of li battery shell.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is view after fixed lithium battery;
Fig. 3 is enlarged diagram at A;
Enlarged diagram when Fig. 4 is unlocked lithium battery at drive link and gag lever post;
Enlarged diagram when Fig. 5 is fixed lithium battery at drive link and gag lever post;
Wherein:1st, outer cover body, 2, self-locking plate, 3, drive link, 4, gear, 5, gag lever post, 6, cap, 7, lithium battery, it is 1-1, recessed
Groove, 2-1, snapping plate, 2-2, limiting plate, 2-3, neck, 3-1, spring.
Embodiment
Shown li battery shell as shown in Figure 1, Figure 3 and Figure 4, including outer cover body 1 and cap 6, described outer cover body 1 are
Hollow cuboid, one end of the length direction of described cuboid are provided with opening, and two of described cuboid relative
Be provided with a pair of self-locking devices in side wall, described self-locking device includes self-locking plate 2, drive link 3 and gag lever post 5, it is described from
Jam plate 2 is hinged in the side wall of outer cover body 1, and described self-locking plate 2 includes limiting plate 2-2 and snapping plate 2-1, described locking
Be provided with torsion spring between plate 2 and outer cover body 1, when torsion spring in the raw when, plane where described limiting plate 2-2 with
The length direction of outer cover body 1 is in non-perpendicular state.Where plane and snapping plate 2-1 where described limiting plate 2-2
Plane is vertical, and limiting plate 2-2 and snapping plate 2-1 90 degree of angles are provided with the direction of opening, limiting plate 2- towards outer cover body 1
2 side is fixedly connected with snapping plate 2-1 side, limiting plate 2-2 and snapping plate 2-1 junction and self-locking plate 2 and shell
The pin joint of body 1 overlaps, and limiting plate 2-2 is located at the inner side of outer cover body 1, and snapping plate 2-1 is located at the outside of outer cover body, institute
The drive link 3 stated is slidably arranged in the side wall of outer cover body 1, and drive link 3 and self-locking plate 2 are located at the same side of outer cover body 1
On wall, the length direction of described drive link 3 is parallel with the length direction of outer cover body 1, the glide direction of drive link 3 parallel to
The length direction of drive link 3, fluted 1-1, described drive link 3 and shell sheet are set in the side wall of described outer cover body 1
Spring 3-1 is provided between body 1, when spring 3-1 in the raw when, one end of drive link 3 protrudes from groove 1-1 side
Wall, neck 2-3, the described side wall of outer cover body 1 are provided with the facade corresponding with drive link 3 on described snapping plate 2-1
Upper slip is provided with switch plectrum, and described switch plectrum is fixedly connected with drive link 3, when snapping plate 2-1 snap onto it is described
When in groove 1-1, described drive link 3 is inserted into neck 2-3, and the depth for defining neck 2-3 be a, definition when drive link 3 and
Spring 3-1 between outer cover body 1 in the raw when, the length that one end of drive link 3 protrudes from groove 1-1 side walls is b,
B is more than a.Described groove 1-1 depth is identical with snapping plate 2-1 thickness, when snapping plate 2-1 is snapped onto in groove 1-1,
Corresponding side wall flush between described snapping plate 2-1 and groove 1-1, and snapping plate 2-1 side wall and groove 1-1 side wall
It is close together.Water-proof sealing strip is provided with described groove 1-1 side wall, to prevent from seeping water in outside shell body 1.Pass
The other end of lever 3 is provided with rack, and described gag lever post 5 is slidably arranged in the side wall of outer cover body 1, the length of gag lever post 5
Spend that direction is vertical with the length direction of drive link 3, the glide direction of gag lever post 5 parallel to gag lever post 5 length direction, it is described
It is also equipped with rack on gag lever post 5, the rack on described drive link 3 engages with the rack on gag lever post 5 with same gear 4
Connection, described gear 4 is rotatably arranged in the side wall of outer cover body 1, described when snapping plate 2-1 is snapped onto in groove 1-1
Limiting plate 2-2 where plane vertical enclosure body 1 length direction, the side wall of described drive link 3 and outer cover body 1 it
Between spring 3-1 be in compressive state, one end of described gag lever post 5 is projected into outer cover body, described limiting plate 2-2 with
The length direction of outer cover body 1 is vertical;When spring 3-1 in the raw when, described gag lever post 5 does not project into outer cover body
In 1.
Operation principle:As shown in Figure 2 and Figure 5, the stopper slot to match with gag lever post 5 is provided with lithium battery 7, by lithium electricity
When pond 7 is fitted into outer cover body 1, the bottom of lithium battery 7 promotes limiting plate 2-2 to turn to the direction being open away from outer cover body 1
It is dynamic, snapping plate 2-1 at a right angle is fixedly connected with limiting plate 2-2 and is rotated to the direction of the side wall close to outer cover body 1, works as snapping
When plate 2-1 is turned to close to drive link 3, snapping plate 2-1 oppresses drive link 3 and slided to the direction away from snapping plate 2-1, drive link
The rack drives gear 4 of 3 other ends rotates, and gear 4 extends into lithium battery 7 by the rack drives gag lever post 5 on gag lever post 5
In stopper slot, because last was caught in the stage, lithium battery 7 is advanced in small distance in outer cover body 1, therefore can be ignored
Movement extends into influence during neck to gag lever post 5, and when snapping plate 2-1 is snapped onto in groove 1-1 completely, drive link 3 inserts
Into snapping plate 2-1 neck 2-3, release to prevent clamping fishplate bar 2-1, be finally arranged on by cap 6 on outer cover body 1.
When needing to take out lithium battery 7, drive link 3 is stirred by plectrum and slided to the direction away from snapping plate 2-1, is passed
Lever 3 drives gag lever post 5 to exit the stopper slot of lithium battery 7 by gear 4, and the torsion spring driving limiting plate 2-2 on self-locking plate 2 is promoted
Lithium battery 7 moves to the direction that outer cover body 1 is open, and is easy to staff to take out lithium battery 7.