CN210926113U

CN210926113U - Battery box assembly

Info

Publication number: CN210926113U
Application number: CN201922346068.6U
Authority: CN
Inventors: 丁青松
Original assignee: NINGBO CONNFLY ELECTRONIC CO Ltd
Current assignee: NINGBO CONNFLY ELECTRONIC CO Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-07-03
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a battery box component, which comprises a box cover, a box body, a first conducting strip and a second conducting strip, wherein one end of the first conducting strip and one end of the second conducting strip are respectively and fixedly connected with one electrode of a battery, and the other ends of the first conducting strip and the second conducting strip extend out of the opening of the box body and form respective contact ends; the outer wall of the box body is provided with a fixed block, and the contact end is arranged on the fixed block; the bottom surface of the box cover is provided with a non-closed annular flange, the annular flange is provided with a limiting arm, the first conducting strip is provided with a limiting part, and the limiting part and the limiting arm are arranged in a matched mode. Through setting up spacing portion and spacing arm of mutually supporting to with battery and conducting strip rigid coupling, both solved the easy oxidation problem of battery electrode end continuous power supply, also do not hinder the normal use of battery case.

Description

Battery box assembly

Technical Field

The utility model relates to a battery case field, concretely relates to conducting strip and battery two poles of the earth rigid coupling and have limit structure's battery case subassembly.

Background

Whether the battery mounted in the battery box can continuously supply power and whether the power supply is normal or not causes a fundamental problem in the field. However, the battery often causes an oxide layer to be formed at the positive electrode and the negative electrode of the battery due to continuous discharge, air humidity, temperature and the like, so that the electric energy output of the battery is blocked, and the electric equipment is caused to break down; such as a battery used to power an electrical energy meter, may have serious consequences such as initializing metering data if such a situation occurs.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery box component for solving the abnormal power supply condition of the battery in the long-time use process, which comprises a box cover, a box body, a first conducting strip and a second conducting strip, wherein one end of the first conducting strip and one end of the second conducting strip are respectively fixedly connected with one electrode of the battery, and the other ends of the first conducting strip and the second conducting strip extend out from the opening of the box body and form respective contact ends; the outer wall of the box body is provided with a fixed block, and the contact end is arranged on the fixed block; the bottom surface of the box cover is provided with a non-closed annular flange, the annular flange is provided with a limiting arm, the first conducting strip is provided with a limiting part, and the limiting part and the limiting arm are arranged in a matched mode.

Further, the limiting part is a limiting notch formed in the first conducting strip, and the limiting arm can extend into the limiting notch.

Further, the limiting portion comprises two limiting notches, the two limiting notches are respectively formed in the upper end face and the lower end face of the first conducting strip, and the limiting arm is in a fishfork shape.

Further, the limiting part is a limiting hole formed in the first conducting strip, and the limiting arm can extend into the limiting hole.

Further, the box cover is provided with a covering part for covering the upper end face of the fixing block; the lower end of the covering part is provided with a hook-shaped part, the side surface of the fixing block is provided with a concave part, and the hook-shaped part and the concave part are arranged in a matched mode.

Further, a top pressing block is arranged on the bottom surface of the covering portion and used for pressing the upper end face of the fixing block.

Furthermore, the box cover and the box body are covered in a rotating mode, after the box cover and the box body are covered, the limiting arm extends into the limiting portion, the hook-shaped portion extends into the concave portion, and the jacking block jacks and presses the upper end face of the fixing block.

Furthermore, a first fixed end and a first contact end are respectively arranged at two ends of the first conducting strip, the first fixed end is fixedly connected with the anode of the battery, the first contact end extends out of the box body, and the fixing block is used for fixing the first contact end; the two ends of the second conducting plate are respectively provided with a second fixed end and a second contact end, the second fixed end is fixedly connected with the negative electrode of the battery, the second contact end extends out of the box body, and the fixing block is used for fixing the second contact end.

Further, the first contact end and the second contact end are both pins, a part of each pin is clamped in the fixing block, a convex point is arranged on the side surface of the part of each pin, and the needle heads of the two pins extend out of the lower end surface of the fixing block.

Further, a through bottom hole is formed in the bottom of the box body, and one electrode of the battery is opposite to the bottom hole.

The utility model has the advantages that: firstly, the conducting strip is fixedly connected with the battery, so that the distance between the conducting strip and the electrode of the battery is reduced, the electrode of the battery can be prevented from being oxidized, and the normal power supply of the battery is realized; and secondly, the cover closing problem caused by the fixedly connected conducting strips is solved through the matching arrangement of the limiting part and the limiting arm, and the firmness after the cover closing of the battery box assembly is also improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of one embodiment of a battery pack assembly of the present invention;

fig. 2 is a schematic bottom view of an embodiment of the middle cap of the present invention;

fig. 3 is a schematic view of a first conductive sheet according to a first embodiment of the present invention;

fig. 4 is a schematic view of a second embodiment of the first conductive sheet of the present invention;

fig. 5 is a schematic view of a third embodiment of the first conductive sheet of the present invention;

fig. 6 is a schematic side view of an embodiment of a middle cap according to the present invention;

fig. 7 is a schematic front view of a free end of a middle stop arm according to an embodiment of the present invention;

FIG. 8 is a schematic front view of a second embodiment of a free end of a middle stop arm according to the present invention;

fig. 9 is a schematic front view of a free end embodiment of a middle position-limiting arm according to the present invention;

FIG. 10 is an exploded view of one embodiment of the middle cap and body of the present invention;

reference numerals: 1-a box cover, 2-a box body, 3-a first conducting plate, 3 a-a first fixed end, 3 b-a first contact end, 4-a second conducting plate, 4 a-a second fixed end, 4 b-a second contact end, 5-a fixed block, 6-an annular flange, 7-a limiting arm, 8-a limiting part, 9-a limiting block, 10-a limiting groove, 11-a stopping block, 12-a buckling convex part, 13-a covering part, 14-a hook-shaped part, 15-a concave part, 16-a top pressing block, 17-a convex point, 18-a bottom hole and 19-a rear plug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1, the battery box assembly includes a box cover 1, a box body 2, a first conducting strip 3 and a second conducting strip 4, wherein one end of the first conducting strip 3 and one end of the second conducting strip 4 are respectively fixedly connected with one electrode of the battery, the first conducting strip 3 can be fixedly connected with the positive electrode of the battery or the negative electrode of the battery, and the second conducting strip 4 is fixedly connected with the other electrode of the battery; the two conducting strips can be fixedly connected in a welding mode, and specifically, the two conducting strips are dotted at the fixed connection position and then welded through a laser welding technology; and the conductive adhesive can also be used for fixed connection, so that the device has the advantage of convenience in operation. The adoption has reduced the interval between conducting strip and the battery electrode with conducting strip and battery fixed connection's mode, can effectively prevent battery electrode oxidation and solve bad power supply problem.

The other ends of the first conducting plate 3 and the second conducting plate 4 extend out of the opening of the box body 2 and form respective contact ends, a fixing block 5 is arranged on the outer wall of the box body 2, and the two contact ends are arranged on the fixing block 5. The fixing block 5 is used for positioning the position of the contact end, so that the battery can be correctly connected with a corresponding device for supplying power, and meanwhile, the holding force between the two conducting strips and the box body 2 is increased.

Referring to fig. 2, a non-closed annular flange 6 is provided on the bottom surface of the box cover 1, a limiting arm 7 is provided on the annular flange 6, a limiting portion 8 is provided on the first conductive plate 3, and the limiting portion 8 and the limiting arm 7 are cooperatively provided.

Wherein, the annular flange 6 extends into the box body 2 in the process of covering the box cover 1 and the box body 2, and the annular flange 6 and the inner wall of the box body 2 are mutually clung or slightly in interference fit in one embodiment so as to increase the interference force between the two; one end of the first conducting strip 3 and one end of the second conducting strip 4 are fixedly connected with one electrode of the battery respectively, and the unclosed gap of the annular flange 6 is used for arranging the conducting strips, so that the conducting strips can not block the annular flange 6 from extending into the box body 2. In another embodiment, a convex block 9 is arranged on the outer side wall of the annular flange 6 in an outward protruding manner, a limiting groove 10 is arranged on the box body 2, when the box cover 1 and the box body 2 are closed, the convex block 9 extends into the limiting groove 10, and the convex block 9 and the limiting groove 10 are matched with each other to limit the box cover 1; furthermore, a stop block 11 can be additionally arranged in the limit groove 10 to cooperate with the projection 9 to stop the box cover 1, so as to increase the binding force between the box cover 1 and the box body 2 after being covered.

Wherein, the annular flange 6 is provided with a limiting arm 7, the limiting arm 7 is connected at a gap formed at the non-closed position of the annular flange 6, the free end of the limiting arm 7 is positioned in the gap or extends into the annular flange 6, obviously, the limiting arm 7 should not obstruct the cover of the box cover 1 and the box body 2; accordingly, a position-limiting part 8 is provided on the first conductive plate 3 for cooperating with the position-limiting arm 7. Spacing arm 7 and spacing portion 8 mutually support the setting and be used for having the interference effect between the two, increase battery box subassembly overall structure's stability at least.

Embodiment of the stopper 8

In the embodiment shown in fig. 1, the position-limiting portion 8 is a position-limiting notch formed on the first conductive plate 3, the position-limiting notch is formed below the first conductive plate 3 and faces downward, and the position-limiting arm 7 can extend into the position-limiting notch to match with the position-limiting notch. The upper end of spacing arm 7 can be pushed and pressed to spacing portion 8 in this scheme, restriction lid 1 upward movement avoids lid 1 improper to open.

In the embodiment shown in fig. 3, the position-limiting portion 8 is a position-limiting notch formed on the first conductive plate 3, the position-limiting notch is formed above the first conductive plate 3 and faces upward, and the position-limiting arm 7 can extend into the position-limiting notch to match with the position-limiting notch. The upper end of the limiting part 8 can be pressed by the limiting arm 7 in the scheme, so that the first conducting plate 3 is limited to move upwards, and the first conducting plate 3 is reinforced equivalently.

In a more preferred embodiment, the position-limiting portion 8 shown in fig. 4 includes two position-limiting notches, which are respectively disposed on the upper end surface and the lower end surface of the first conductive sheet 3; in this solution, as shown in fig. 6, the limiting arm 7 may be designed to be in a fish-fork shape to be matched with the limiting part 8, and the fish-fork shaped limiting arm 7 may extend into the two limiting notches respectively. Spacing arm 7 and spacing portion 8 can support each other and hold back each other and restrain in this scheme, have compromise the advantage of above-mentioned two embodiments.

In the embodiment shown in fig. 5, the position-limiting portion 8 is a position-limiting hole formed on the first conductive plate 3, and the position-limiting arm 7 can extend into the position-limiting hole. Because spacing arm 7 stretches into spacing hole in this scheme, spacing arm 7's circumference all is restricted by spacing hole, has better effect to restriction lid 1.

Embodiments of the check arm 7

As shown in fig. 2, the position limiting arm 7 is a circular arc cantilever, the position limiting arm 7 and the annular flange 6 are integrally formed, and the free end of the position limiting arm 7 is flat and is not provided with a bulge or a barb structure. By adopting the structure, the relative freedom degree between the box cover 1 and the conducting strip in the up-down direction has a limiting function.

The free end of the limiting arm 7 can be further provided with a buckling convex part 12, and the buckling convex part 12 can be arranged to be a bulge or an inverted hook so as to further increase the limiting effect between the limiting arm 7 and the limiting part 8 or further increase the limiting effect on the relative freedom degree between the limiting arm 7 and the limiting part 8 in multiple directions; the buckle protrusion can be arranged into a detachable structure or a non-detachable structure.

As shown in fig. 7, the snap convex 12 may be disposed on the upper end surface of the free end of the limiting arm 7, and the surface of the limiting arm that contacts the first conducting strip 3 first may be formed into a chamfer, so as to facilitate the lid 1 to cover the box body 2; the other side opposite to the first contact surface can also be arranged as a chamfer angle, so that the box cover 1 and the box body 2 can be conveniently separated; the other surface opposite to the first contact surface can be set to be vertical to the upper end surface of the free end of the limiting arm 7, so that the box cover 1 and the box body 2 are in an undetachable state after being covered, the box cover has large holding force, and the degree of freedom of the box cover 1 in the left-right direction is limited.

Obviously, the catch projection 12 may be provided on the lower end surface of the free end of the stopper arm 7, and the other structure may be the same as the above-described catch projection 12.

As shown in fig. 8, the fishlike stopper arm 7 may be provided with a catch projection 12 at its free end, and the catch projection 12 may be the same in structure as the catch projection 12. Obviously, the harpoon-shaped limiting arm 7 may be matched with the limiting portion 8 which is provided with a limiting notch on both the upper and lower end surfaces of the first conducting strip 3, or may be matched with the limiting portion 8 which is provided with a limiting hole.

As shown in fig. 9, a snap projection 12 may be provided on both the upper end surface and the lower end surface of the free end of the stopper arm 7 to be engaged with the stopper portion 8 provided as a stopper hole, and the other structure of the snap projection 12 may be the same as the above-described snap projection 12.

In one embodiment, the box cover 1 is an insulating plastic part, the limiting arm 7 and the box cover 1 are integrally formed and are also plastic parts, the conducting strip is a conducting metal sheet, the limiting part 8 and the limiting arm 7 are matched with each other, the characteristic that the conducting strip has rigidity except conductivity is fully utilized, and the functions are realized by utilizing mutual interference between the plastic parts and the metal sheets.

In a more preferred technical scheme, a covering part 13 is arranged on the box cover 1 and is used for covering the upper end surface of the fixed block 5 and mainly used for covering the conducting strip part on the fixed block 5; the lower end of the covering part 13 is additionally provided with a hook-shaped part 14, the side surface of the fixing block 5 is provided with a concave part 15, the hook-shaped part 14 is matched with the concave part 15, and the hook-shaped part 14 extends into the concave part 15 after the box cover 1 covers the box body 2 to reinforce the battery box component. As shown in fig. 10, the hook-shaped portion 14 is composed of a straight rod portion and a hook portion, the hook portion is located at the lower end of the straight rod portion, and the hook-shaped portion 14 is in an inverted hook shape as a whole; the recess 15 is formed concavely in the side of the fixing block 5 and can interfere with the straight rod portion and the hook portion of the hook 14, respectively.

In a further optimized scheme, a top pressing block 16 is additionally arranged on the bottom surface of the covering part 13, and the top pressing block 16 is used for pressing the upper end surface of the fixing block 5, so that on one hand, the gap between the covering part 13 and the fixing block 5 is reduced, and the possibility of external contact of a conducting strip on the upper end surface of the fixing block 5 is reduced; on the other hand, the contact area between the box cover 1 and the box body 2 is increased, and the stability of the box cover 1 after being covered is increased, so that the box cover is not easy to incline. One side surface of the top pressing block 16 can be set to be a chamfer, when the box cover 1 is covered on the box body 2 in a rotating mode, the top pressing block 16 can slide into the upper end surface of the fixing block 5 correctly, and the box cover 1 can be covered conveniently; obviously, in this solution, the top pressing block 16 may be thickened appropriately to further reduce the gap between the covering part 13 and the fixing block 5.

Specifically, the box cover 1 and the box body 2 are covered in a rotating mode, after the box cover 1 and the box body 2 are covered, the limiting arm 7 extends into the limiting portion 8, the hook-shaped portion 14 extends into the concave portion 15, and the top pressing block 16 is pressed against the upper end face of the fixing block 5. Through setting up a plurality of structures of mutually supporting for battery case subassembly has stronger cohesion after the lid closes, can resist complex environment's influence, thereby has improved the reliability of power supply.

In one embodiment, referring to fig. 1, a first fixed end 3a and a first contact end 3b are respectively disposed at two ends of the first conductive plate 3, the first fixed end 3a and the positive electrode of the battery are fixedly connected, the first contact end 3b extends out of the case 2, and the fixing block 5 is used for fixing the first contact end 3 b; a second fixed end 4a and a second contact end 4b are respectively arranged at two ends of the second conducting plate 4, the second fixed end 4a is fixedly connected with the negative electrode of the battery, the second contact end 4b extends out of the box body 2, and the fixing block 5 is used for fixing the second contact end 4 b.

Further, the first contact end 3b and the second contact end 4b are both provided as pins, a part of the two pins is caught in the holding block 5 and a protrusion 17 is provided on a side surface of the part, and tips of the two pins protrude from a lower end surface of the holding block 5. According to the scheme, the battery box assembly can be connected with other devices in a plug-in type manner to realize the power supply function of the battery; the battery box assembly can be connected with the electric connector in a plug-in mode, and therefore the power supply function of the battery is achieved.

In one embodiment, referring to fig. 1 or fig. 10, a bottom hole 18 is formed through the bottom of the case 2, and one electrode of the battery faces the bottom hole 18. In one embodiment, a first fixed end 3a and a first contact end 3b are respectively disposed at two ends of the first conductive plate 3, the first fixed end 3a is fixedly connected to the positive electrode of the battery, the first contact end 3b extends out of the case 2, the fixed block 5 is used for fixing the first contact end 3b, a second fixed end 4a and a second contact end 4b are respectively disposed at two ends of the second conductive plate 4, the second fixed end 4a is fixedly connected to the negative electrode of the battery, the second contact end 4b extends out of the case 2, and the fixed block 5 is used for fixing the second contact end 4 b. In the battery box assembly of the above embodiment, the assembly process of the whole battery box assembly can be completed as follows: firstly, arranging the second conducting strip 4 at a correct position in the box body 2, and clamping the second contact end 4b into the fixed block 5; secondly, putting the battery cathode downwards into the box body 2, correcting the positions of the cathode and the second fixed end 4a through the bottom hole 18, and welding and fixing the cathode and the second fixed end through the bottom hole 18; thirdly, clamping the first contact end 3b into the fixing block 5, correcting the positions of the first fixing end 3a and the positive electrode of the battery and welding and fixing; fourthly, the lid 1 and the body 2 are closed, and obviously a rear plug 19 is also provided to plug the bottom hole 18 to isolate the battery. Because the conducting strips are rigid, the bottom holes 18 are formed, and the process can ensure that the two conducting strips are fixedly connected at the correct positions; of course, the welding and fixing of the conductive sheet and the battery can be completed in a welding mold, and then the battery and the conductive sheet are taken out and installed in the box body 2, wherein the welding mold has a structure similar to that of the box body 2.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention; and under the prerequisite that need not pay out creative work and satisfy above-mentioned various qualification, will the utility model discloses the technical scheme who obtains after the simple combination that various technical characteristics go on all contains within the protection scope of the utility model.

Claims

1. The utility model provides a battery case subassembly, includes lid, box body, first conducting strip and second conducting strip, its characterized in that: one ends of the first conducting strip and the second conducting strip are fixedly connected with one electrode of the battery respectively, and the other ends of the first conducting strip and the second conducting strip extend out of the opening of the box body and form respective contact ends; the outer wall of the box body is provided with a fixed block, and the contact end is arranged on the fixed block; the bottom surface of the box cover is provided with a non-closed annular flange, the annular flange is provided with a limiting arm, the first conducting strip is provided with a limiting part, and the limiting part and the limiting arm are arranged in a matched mode.

2. A battery cartridge assembly as defined in claim 1 wherein: the limiting part is a limiting notch formed in the first conducting strip, and the limiting arm can extend into the limiting notch.

3. A battery cartridge assembly as defined in claim 2 wherein: the limiting portion comprises two limiting notches, the two limiting notches are arranged on the upper end face and the lower end face of the first conducting strip respectively, and the limiting arm is in a fishfork shape.

4. A battery cartridge assembly as defined in claim 1 wherein: the limiting part is a limiting hole formed in the first conducting strip, and the limiting arm can extend into the limiting hole.

5. A battery cartridge assembly as defined in claim 1 wherein: the box cover is provided with a covering part for covering the upper end face of the fixing block; the lower end of the covering part is provided with a hook-shaped part, the side surface of the fixing block is provided with a concave part, and the hook-shaped part and the concave part are arranged in a matched mode.

6. The battery pack assembly of claim 5, wherein: and the bottom surface of the covering part is provided with a jacking block, and the jacking block is used for jacking the upper end surface of the fixed block.

7. A battery cartridge assembly as defined in claim 6, wherein: the box cover and the box body are covered in a rotating mode, after the box cover and the box body are covered, the limiting arm extends into the limiting portion, the hook-shaped portion extends into the concave portion, and the jacking block jacks and presses the upper end face of the fixing block.

8. A battery cartridge assembly as defined in claim 1 wherein: a first fixed end and a first contact end are respectively arranged at two ends of the first conducting plate, the first fixed end is fixedly connected with the anode of the battery, the first contact end extends out of the box body, and the fixing block is used for fixing the first contact end; the two ends of the second conducting plate are respectively provided with a second fixed end and a second contact end, the second fixed end is fixedly connected with the negative electrode of the battery, the second contact end extends out of the box body, and the fixing block is used for fixing the second contact end.

9. The battery pack assembly of claim 8, wherein: the first contact end and the second contact end are both provided with contact pins, one part of each of the two contact pins is clamped in the fixing block, a convex point is arranged on the side surface of the part of each of the two contact pins, and needle heads of the two contact pins extend out of the lower end surface of the fixing block.

10. A battery cartridge assembly as defined in claim 1 wherein: the bottom of the box body is provided with a through bottom hole, and one electrode of the battery is opposite to the bottom hole.