CN218731617U

CN218731617U - Auxiliary connection assembly and battery device

Info

Publication number: CN218731617U
Application number: CN202222725062.1U
Authority: CN
Inventors: 王成; 于力; 阮红林; 周敬
Original assignee: Wuhan Haocheng Lithium Technology Co ltd
Current assignee: Wuhan Haocheng Lithium Technology Co ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-03-24
Anticipated expiration: 2032-10-17

Abstract

The utility model belongs to the technical field of the battery, a supplementary coupling assembling and battery device are disclosed. The mounting seat is mounted on a body of a battery and is provided with a first avoiding hole, the first avoiding hole corresponds to a battery pole column, the fixing member can clamp the capacitor, the pole column can be covered by the projection of the fixing member on the body, and the capacitor can be fixed on one side of the fixing member deviating from the pole column. Set up first hole of dodging on the mount pad, cover utmost point post when the fixed electric capacity of mounting, prevent that welding burr from impaling the mounting, and then avoid welding burr to impale into electric capacity, do not use the jelly to bond battery case electric capacity, auxiliary connection subassembly's stability is better, and the security performance is higher. The battery device is well fixed by clamping the capacitor, has high stability, does not use jelly to bond the battery and the capacitor, has better heat resistance, and further improves the safety performance of the battery device.

Description

Auxiliary connection assembly and battery device

Technical Field

The utility model relates to a battery technology field especially relates to an auxiliary connection subassembly and battery device.

Background

The lithium-ion battery is a battery with high specific energy in the current chemical power supply, has the advantages of high working voltage, long storage life, wide working temperature range, convenience in use and maintenance, strong adaptability and the like, and has wide application in a plurality of fields for more than ten years. In some special fields, the capacity of the battery, the processing technology of the battery, the manufacturing cost and the safety performance are highly required.

The inferior battery of lithium includes the body and the protruding utmost point post of establishing with body one end, utmost point post is anodal, the part of body except that utmost point post is the negative pole, the electric capacity is placed in the top of utmost point post when parallelly connected electric capacity of inferior battery of lithium, electric capacity is the cylinder, and utmost point post and the parallelly connected stainless steel connection piece that adopts of electric capacity positive terminal mostly carry out resistance welding, because the copper needle of resistance welding equipment is very easily worn and torn for long-time operation, and the equipment stability reason, can cause the welding burr during spot welding, pierce the crust of electric capacity very easily, cause the anodal and electric capacity negative pole of battery to link to each other and then cause the short circuit, needle this processing mode battery on the market at present, adopt spot welding to accomplish the back mostly, paste the harder disk of material or square form material and avoid the short circuit that the spot welding burr caused. The processing method has great defects, and people can easily cause the leakage risk of the hard material due to visual fatigue after processing for a long time in the manufacturing process, thereby causing the short circuit of the battery and even the fire explosion. And the double-sided gum fixing scheme is not beneficial to the batch operation of personnel and the control of the process, the bonding stability is low, and meanwhile, in the use process of the battery, the battery releases heat, and certain safety risk also exists in the jelly. Therefore, the conventional means cannot fundamentally avoid the short circuit problem of the battery and the capacitor caused by burrs, and the safety problem is worried.

Therefore, it is desirable to design an auxiliary connection assembly and a battery device to solve the problems of low stability and low battery safety during the capacitor fixing process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an auxiliary connection subassembly can press from both sides tight electric capacity, avoids using the jelly to bond electric capacity, improves the security performance.

To achieve the purpose, the utility model adopts the following technical proposal:

auxiliary connection subassembly for the parallel connection of battery and electric capacity, above-mentioned battery include the body and protruding establish with the utmost point post of above-mentioned body, and above-mentioned auxiliary connection subassembly includes:

the mounting seat is mounted on the body, and is provided with a first avoidance hole which is arranged corresponding to the pole; and

the fixing piece can clamp the capacitor, the fixing piece is connected with the mounting seat, the pole can be covered by the projection of the fixing piece on the body, and the capacitor can be fixed on one side, deviating from the pole, of the fixing piece.

Optionally, the mounting seat is detachably connected to the fixing member.

Optionally, the mounting base is provided with an insertion hole, the fixing element includes a body portion and a first protrusion portion, the body portion is used for fixing the capacitor, and the first protrusion portion is inserted into the insertion hole.

Optionally, a corner of the insertion hole is chamfered, and a corner of the first protrusion is chamfered.

Optionally, the capacitor is a cylinder, the body portion includes two arc-shaped clamp arms connected to each other, a clamping space is formed between the two arc-shaped clamp arms, the clamping space is configured to accommodate the capacitor, and a circumference of the two arc-shaped clamp arms is greater than half of a circumference of the capacitor.

Optionally, the body further includes a limiting plate, the same axial ends of the two arc clamp arms are connected to the limiting plate, and an end surface of the column of the capacitor can abut against the limiting plate.

Optionally, the fixing element further includes a second protrusion protruding from the body, at least a portion of the second protrusion faces the pole, and a protrusion height of the first protrusion is higher than a protrusion height of the second protrusion.

Optionally, the body is provided with a groove, the mounting seat includes a mounting plate and a standing wall, the standing wall is formed by extending at least part of an outer edge of the mounting plate downward, the first avoidance hole is provided in the mounting plate, and the standing wall is in interference fit with a side wall of the groove.

Optionally, the mounting plate completely covers the groove, and a second avoiding hole is further formed in the mounting plate and corresponds to the negative electrode of the battery.

Another object of the utility model is to provide a battery device, electric capacity is placed stably, and the security performance of battery is higher.

the battery device comprises a battery and a capacitor which are connected in parallel, and the auxiliary connecting assembly is arranged between the battery and the capacitor.

The beneficial effects of the utility model reside in that:

the utility model provides an auxiliary connection assembly, a parallel connection for battery and electric capacity, set up the first hole of dodging through the mount pad, make utmost point post can pass the first hole of dodging and first connection piece welding hole or first connection piece pass the first hole of dodging and utmost point post welding of dodging, and simultaneously, cover utmost point post in the fixed electric capacity of mounting, electric capacity and utmost point post are located the both sides setting of mounting, prevent that the welding burr from impaling the mounting, and then avoid the welding burr to stab in the electric capacity, and then prevent that the welding burr from causing battery and electric capacity short circuit, and simultaneously, do not use the gelatinoid to bond battery case electric capacity, auxiliary connection assembly's stability is better, and the security performance is higher.

The utility model also provides a battery device, including parallelly connected battery and electric capacity, through arranging foretell auxiliary connection subassembly in between battery and the electric capacity for battery and electric capacity are separated by auxiliary connection subassembly, and in installation and use, the welding burr all can't impale auxiliary connection subassembly, avoids the battery device short circuit, and electric capacity is pressed from both sides tightly and is obtained fine fixed, and stability is high, simultaneously, does not use the jelly to bond battery and electric capacity, and the heat resistance is better, has further improved battery device's security performance.

Drawings

Fig. 1 is an exploded view of a battery device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a battery device according to an embodiment of the present invention.

In the figure:

10. a mounting seat; 11. mounting a plate; 111. a first avoidance hole; 112. inserting holes; 113. a second avoidance hole; 12. erecting a wall;

20. a fixing member; 21. a body portion; 211. arc clamping arms; 212. a clamping space; 213. a limiting plate;

22. a first convex portion; 23. a second convex portion;

400. a battery; 410. a body; 411. a groove; 412. a battery negative electrode; 420. a pole column; 500. a capacitor; 510. a capacitor anode; 520. a capacitor cathode; 530. a cylinder; 600. a first connecting piece; 700. a second connecting piece.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The battery 400 needs to be connected with the capacitor 500 in parallel to form a battery device, as shown in fig. 1 and fig. 2, the battery 400 includes a body 410 and a terminal 420, the terminal 420 is protrudingly disposed on the body 410, specifically, a groove 411 is formed on the body 410, the terminal 420 is disposed in the groove 411 and protrudingly disposed on a bottom surface of the groove 411, in this embodiment, the body 410 is a cylinder 530, and a main body is formed by winding a negative plate on the terminal 420, so that a portion surrounded by a circumference of the terminal 420 is a negative electrode of the battery 400; the capacitor 500 includes a pillar 530 and a capacitor anode 510 and a capacitor cathode 520 respectively disposed at two ends of the pillar 530. The capacitor 500 is placed on the pole 420 to be connected in parallel, when the capacitor 500 is connected in parallel, the pole 420 of the battery 400 is connected with the positive pole 510 of the capacitor through the first connecting sheet 600, the negative pole of the battery 400 is connected with the negative pole 520 of the capacitor through the second connecting sheet 700, and the two ends of the connecting sheets are generally connected in a welding mode.

In order to solve the above problem, the present embodiment provides an auxiliary connection assembly, which can clamp the capacitor 500, avoid using a jelly to adhere the capacitor 500, and improve the safety performance. Specifically, as shown in fig. 1 and fig. 2, the auxiliary connection assembly includes a mounting seat 10 and a fixing element 20, the mounting seat 10 is installed on the body 410, a first avoiding hole 111 is formed in the mounting seat 10, the first avoiding hole 111 corresponds to the pole 420, the fixing element 20 can clamp the capacitor 500 and is connected to the mounting seat 10, the pole 420 can be covered by a projection of the fixing element 20 on the body 410, and the capacitor 500 can be fixed on a side of the fixing element 20 away from the pole 420. Set up first hole 111 of dodging through offering on mount pad 10 for utmost point post 420 can pass first hole 111 of dodging and first piece 600 welding hole or first piece 600 of dodging and pass first hole 111 and utmost point post 420 welding, and simultaneously, cover utmost point post 420 when mounting 20 fixed electric capacity 500, electric capacity 500 is located the both sides setting of mounting 20 with utmost point post 420, prevent that welding burr from impaling mounting 20, and then avoid welding burr to impale among electric capacity 500, and then prevent that welding burr from causing battery 400 and electric capacity 500 short circuit, and simultaneously, do not use the jelly to bond battery 400 box electric capacity 500, auxiliary connection subassembly's stability is better, and the security performance is higher.

Optionally, the fixing element 20 includes a body portion 21 and a first protrusion 22 connected to each other, the first protrusion 22 is connected to the mounting base 10, the body portion 21 includes two circular arc clamping arms 211 connected to each other, a clamping space 212 is formed between the two circular arc clamping arms 211, the clamping space 212 is used for accommodating the capacitor 500, a circumference of each of the two circular arc clamping arms 211 is larger than a circumference of the battery 400, therefore, a free end of each circular arc clamping arm 211 forms an opening, an operator can place the capacitor 500 into the clamping space 212 by applying a slight force, and the circular arc clamping arms 211 clamp more than half of the capacitor 500, the capacitor 500 does not fall off from the opening, and the capacitor 500 is well fixed.

Because at the in-process of pressing from both sides tightly, electric capacity 500 places the back, it still has the difference of position on the axial direction of circular arc arm lock 211, this can cause battery device's finished product uniformity poor, in order to solve above-mentioned problem, this body part 21 of this embodiment still includes limiting plate 213, two same ends of circular arc arm lock 211 all are connected with limiting plate 213, the terminal surface of electric capacity 500's cylinder 530 can butt in limiting plate 213, therefore, limiting plate 213 is spacing to electric capacity 500, the uniqueness of position after electric capacity 500 installed in place has been guaranteed, the uniformity of battery device final product has been improved. In this embodiment, only one limiting plate 213 is provided, and when the axial length of the capacitor 500 is changed, the main body 21 can still fit with the capacitor 500. In other embodiments, the arc-shaped clamping arms 211 can be provided with the limiting plates 213 at both ends, that is, the body 21 is groove-shaped, and is not limited herein.

Preferably, the limiting plate 213 is provided with a U-shaped groove, and when one end of the main body where the positive capacitor electrode 510 is located abuts against the limiting plate 213, the U-shaped groove can form an avoidance with the positive capacitor electrode 510 to prevent interference with the positive capacitor electrode 510. Optionally, the U-shaped groove and the first protruding portion 22 are located at two ends of the body portion 21, because the welding point position of the terminal 420 is limited, the welding point selectable range of the battery negative electrode 412 is large, the first connecting member does not form a winding trend with the first protruding portion 22 after being welded with the terminal 420 due to the arrangement, and the arrangement of the wire harness position is more reasonable.

Preferably, the fixing member 20 further includes a second protrusion 23, the second protrusion 23 is protruded from the body portion 21, at least a portion of the second protrusion 23 faces the pole 420, and the protrusion height of the first protrusion 22 is higher than the protrusion height of the second protrusion 23. Through the arrangement, the thickness of the fixing part 20 above the pole 420 is thicker, welding burrs are further guaranteed not to be pierced, and the short circuit condition is avoided. In this embodiment, the second protrusion 23 extends along the axial direction of the body portion 21, so as to increase the strength of the connection point of the two arc-shaped clamping arms 211, and in other embodiments, the second protrusion 23 may be disposed just opposite to the pole 420, which is not limited herein.

Preferably, as shown in fig. 1, the mounting base 10 is detachably connected to the fixing member 20, so that when the first connecting member is welded to the pole 420 and the second connecting member is welded to the battery cathode 412, the fixing member 20 can be detached and the operation space is larger.

Optionally, the first protruding portion 22 is detachably connected to the mounting base 10, specifically, as shown in fig. 1, an insertion hole 112 is formed in the mounting base 10, and the first protruding portion 22 is inserted into and matched with the insertion hole 112, so as to achieve detachable connection between the fixing member 20 and the mounting base 10. Preferably, the corner of the first protrusion 22 is chamfered, and the corner of the insertion hole 112 is chamfered, so that the operation precision of insertion can be reduced, the insertion speed can be increased, and meanwhile, the sharpness of the corner is reduced, and the abrasion degree of the corner is reduced.

Optionally, the mounting seat 10 includes a mounting plate 11 and a vertical wall 12, the vertical wall 12 is formed by extending at least part of an outer edge of the mounting plate 11 downward, the first avoiding hole 111 and the inserting hole 112 are both opened on the mounting plate 11, and the vertical wall 12 is in interference fit with a side wall of the groove 411. Through the arrangement, the installation of the installation seat 10 and the body 410 is facilitated, and the installation seat 10 is not easy to fall off. The connection between the mounting seat 10 and the body 410 may be a snap connection, or a connection between the upright wall 12 and the sidewall of the body 410, which is not limited herein.

Preferably, as shown in fig. 2, the mounting plate 11 is disposed lower than the top surface of the pole 420, so that the pole 420 protrudes from the mounting plate 11 after the mounting seat 10 is mounted, and the welding is convenient. Of course, the pole 420 may also be welded under the mounting plate 11, except that the first connection tab 600 extends into the first relief hole 111.

Preferably, the mounting plate 11 completely covers the groove 411, the mounting plate 11 is further provided with a second avoiding hole 113, the second avoiding hole 113 is arranged corresponding to the negative electrode of the battery 400, the contact area between the groove 411 and the vertical wall 12 is increased, the connection between the mounting seat 10 and the body 410 is firmer, and the second avoiding hole 113 provides an avoiding space for welding the second connecting piece 700. It can be understood that, if the mounting plate 11 does not completely cover the groove 411, a portion not covering the groove 411 may be used as a welding escape space of the second connecting piece 700.

Install supplementary coupling assembling between the battery device of this embodiment, place battery 400 and electric capacity 500 in through with foretell supplementary coupling assembling between, make battery 400 and electric capacity 500 separated by supplementary coupling assembling, in installation and use, the welding burr is unable to pierce through supplementary coupling assembling all, avoid the battery device short circuit, electric capacity 500 is pressed from both sides tightly and is obtained fine fixed, stability is high, the drunkenness can not take place, and simultaneously, do not use the jelly to bond battery 400 and electric capacity 500, the heat resistance is better, the security performance of battery device has further been improved.

The mounting steps of the battery device will be described with reference to fig. 1 and 2. As shown in fig. 1 and 2, the mounting base 10 is fastened in the groove 411, after the mounting base 10 is fixed, the first connection piece 600 and the second connection piece 700 are prepared, the first connection piece 600 is welded with the pole 420, the second connection piece 700 is welded with the battery cathode 412 through the second avoidance hole 113 (the welding sequence can be changed), then the first protrusion 22 is inserted into the insertion hole 112, the mounting of the fixing member 20 is completed, at this time, the second protrusion 23 is just lapped on the welding position of the first connection piece 600, the battery 400 is placed into the clamping space 212, then the other end of the first connection piece 600 is welded with the capacitor anode 510, and the other end of the second connection piece 700 is welded with the battery cathode 412.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements, and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. Auxiliary connection subassembly for the parallel connection of battery (400) and electric capacity (500), battery (400) include body (410) and protruding establish with utmost point post (420) of body (410), its characterized in that, auxiliary connection subassembly includes:

the mounting seat (10) is mounted on the body (410), a first avoidance hole (111) is formed in the mounting seat (10), and the first avoidance hole (111) and the pole (420) are correspondingly arranged; and

the fixing piece (20) can clamp the capacitor (500), the fixing piece (20) is connected with the mounting seat (10), the pole column (420) can be covered by the projection of the fixing piece (20) on the body (410), and the capacitor (500) can be fixed on one side, deviating from the pole column (420), of the fixing piece (20).

2. Auxiliary connection assembly according to claim 1, characterized in that the mounting seat (10) is detachably connected to the fixing element (20).

3. The auxiliary connection assembly of claim 1, wherein a plug hole (112) is formed in the mounting seat (10), the fixing member (20) includes a body portion (21) and a first protrusion (22), the body portion (21) is used for fixing the capacitor (500), and the first protrusion (22) is in plug-fit with the plug hole (112).

4. A supplementary connection assembly according to claim 3, wherein the corner of the socket hole (112) is chamfered and the corner of the first protrusion (22) is chamfered.

5. The auxiliary connection assembly of claim 3, wherein the capacitor (500) is a cylinder (530), the body portion (21) comprises two connected arc clamping arms (211), a clamping space (212) is formed between the two arc clamping arms (211), the clamping space (212) is used for accommodating the capacitor (500), and the circumference of the two arc clamping arms (211) is greater than half of the circumference of the capacitor (500).

6. Auxiliary connection assembly according to claim 5, wherein the body (21) further comprises a limiting plate (213), the same axial end of both of the two arc clamping arms (211) is connected to the limiting plate (213), and an end surface of the column (530) of the capacitor (500) can abut against the limiting plate (213).

7. The auxiliary connection assembly according to claim 3, wherein the fixing member (20) further comprises a second protrusion (23), the second protrusion (23) is protruded from the body portion (21), at least a portion of the second protrusion (23) is opposite to the pole (420), and a protrusion height of the first protrusion (22) is higher than a protrusion height of the second protrusion (23).

8. The auxiliary connection assembly according to any one of claims 1 to 7, wherein the body (410) is provided with a groove (411), the mounting seat (10) comprises a mounting plate (11) and a standing wall (12), the standing wall (12) is formed by extending at least part of the outer edge of the mounting plate (11) downwards, the first avoidance hole (111) is formed in the mounting plate (11), and the standing wall (12) is in interference fit with the side wall of the groove (411).

9. The auxiliary connection assembly according to claim 8, wherein the mounting plate (11) completely covers the groove (411), a second avoiding hole (113) is further formed in the mounting plate (11), and the second avoiding hole (113) corresponds to a negative electrode of the battery (400).

10. Battery device comprising a battery (400) and a capacitor (500) connected in parallel, characterized in that it further comprises an auxiliary connection assembly according to any one of claims 1 to 9, interposed between the battery (400) and the capacitor (500).