CN217507500U - A lid structure and electric motor car for cylinder type power battery - Google Patents
A lid structure and electric motor car for cylinder type power battery Download PDFInfo
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- CN217507500U CN217507500U CN202220583605.8U CN202220583605U CN217507500U CN 217507500 U CN217507500 U CN 217507500U CN 202220583605 U CN202220583605 U CN 202220583605U CN 217507500 U CN217507500 U CN 217507500U
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- cap
- conductive
- power battery
- current collecting
- insulating plate
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Abstract
The utility model relates to the technical field of power batteries, and provides a cover body structure for cylindrical power batteries, which comprises a cap, a conductive column, an upper insulating plate, a current collecting disc and a column cap, wherein the cap comprises a cap body and a snap ring, the snap ring is arranged at the lower side of the outer edge of the cap body, a circular groove is arranged in the middle of the upper surface of the cap body, and an annular groove is arranged in the middle of the circular groove; a rubber ring is arranged between the conductive column and the upper insulating plate, a column cap is arranged on the upper insulating plate, and the conductive column penetrates through the rubber ring and the upper insulating plate and is connected with the conductive column; the surface of the upper insulating plate is provided with a plurality of fan-shaped holes, the surface of the current collecting disc is provided with a plurality of fan-shaped lugs, and one side of the current collecting disc is connected with a conductive column connecting plate; the utility model provides a lid structure effectively reduces the internal resistance of battery lid, has improved the safety in utilization performance and the life of battery.
Description
Technical Field
The utility model relates to a power battery technical field particularly, relates to a lid structure and electric motor car for cylinder type power battery.
Background
The power battery is a power supply for providing a power source for tools, is mainly different from a starting battery for starting an automobile engine, and mainly comprises a valve port sealed lead-acid storage battery, an open tubular lead-acid storage battery and a lithium iron phosphate storage battery.
Along with the continuous development of science and technology, people pay more and more attention to the environment, power battery's application is also more and more extensive, the continuous upgrading and upgrading of science and technology, also higher and more high to power battery's performance requirement, the cyclic utilization of high energy density, high power and high rate part also puts forward higher challenge to the shell structure of battery, and current power battery lid has top cap, stainless steel packing ring, bordure explosion-proof piece and constitutes, in order to optimize power battery's performance, need improve the safe handling performance and the life of battery, need reduce the internal resistance of battery lid simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem how to reduce the internal resistance of power battery's battery lid to improve the safety in utilization performance and the life of battery.
In order to solve the problems, the utility model provides a cover body structure for a cylindrical power battery, which comprises a cap, a conductive post, an upper insulating plate, a current collecting plate and a post cap, wherein the cap comprises a cap body and a snap ring, the snap ring is arranged at the lower side of the outer edge of the cap body, a circular groove is arranged in the middle of the upper surface of the cap body, and an annular groove is arranged in the middle of the circular groove; a rubber ring is arranged between the conductive post and the upper insulating plate, a post cap is arranged on the upper insulating plate, and the conductive post penetrates through the rubber ring and the upper insulating plate and is connected with the conductive post; the surface of the upper insulation plate is provided with a plurality of fan-shaped holes, the surface of the current collecting disc is provided with a plurality of fan-shaped convex blocks, one side of the current collecting disc is connected with a conductive column connecting plate, and two sides of the upper portion of the conductive column connecting plate are respectively provided with an arc-shaped groove.
As a further aspect of the present invention: the snap ring with be provided with the sealing washer between the circular recess, the sealing washer adhere in the back of block, the sealing washer with be provided with the steel ring between the circular recess, the steel ring is located the inside of block, the inside of circular recess is provided with the rupture disk, the inboard of annular recess is provided with the cylinder connecting plate.
As a further aspect of the present invention: the inner side of the upper insulating plate is provided with an insulating groove, the middle of the insulating groove is provided with a conductive column hole, and the conductive column penetrates through the conductive column hole.
As a further aspect of the present invention: the bottom of the conductive column hole is provided with an inner conductive column hole, and the rubber ring is clamped in the inner conductive column hole.
As a further aspect of the present invention: the conductive post comprises a base, a post body is arranged in the middle of the base, and an annular groove is formed in the outer side of the top of the post body.
As a further aspect of the present invention: the column cap is pressed on the annular groove.
As a further aspect of the present invention: the fan-shaped convex blocks are clamped with the fan-shaped holes.
As a further aspect of the present invention: the fan-shaped convex blocks are adhered to the upper surface of the current collecting plate and are made of insulating silica gel.
As a further aspect of the present invention: the tail end of the conductive column connecting plate is connected with the bottom of the current collecting disc, and the front end of the conductive column connecting plate and the upper surface of the current collecting disc are arranged at intervals.
Compared with the prior art, the beneficial effects of the utility model are that:
a clamping ring is arranged on the lower side of the outer edge of the cap body of the cap, so that the cap is connected with the battery shell more firmly, a circular groove is arranged in the middle of the upper surface of the cap body, and an annular groove is arranged in the middle of the circular groove, so that the explosion-proof and buffering performances of the cap structure are improved; the surface of the upper insulating plate is provided with a plurality of fan-shaped holes, the surface of the current collecting disc is provided with a plurality of fan-shaped lugs, the fan-shaped holes and the fan-shaped lugs are mutually clamped, and a sealing ring is arranged between the conductive column and the sealing ring, so that the insulating property and the sealing property of the upper insulating plate are improved; the conductive column penetrates through the upper insulating plate to be connected with the column cap, the upper portion of the column cap is connected with the cap, and the conductive column is connected with the conductive column connecting plate on the current collecting disc in an interconnecting mode, so that current loss is reduced, conductivity is improved, internal resistance of the cover body is reduced, and charge and discharge performance of the power battery is effectively improved.
As a further aspect of the present invention: the utility model provides an electric motor car, includes frame and a lid structure that is used for cylinder type power battery, lid structure set up in on the power battery lid of frame.
Drawings
Fig. 1 is an exploded view of a cover structure for a cylindrical power battery according to the present invention;
FIG. 2 is a schematic cross-sectional view of the middle cap of the present invention;
fig. 3 is one of the schematic structural diagrams of the mounting structure of the conductive post and the cap of the present invention;
fig. 4 is a second schematic structural view of the mounting structure of the conductive post and the cap of the present invention;
fig. 5 is a schematic structural view of an upper insulating plate in the present invention;
fig. 6 is a schematic structural diagram of the middle conductive column, the upper insulating plate and the column cap mounting structure of the present invention.
Description of reference numerals:
1-capping; 10-a cap body; 11-a snap ring; 12-a circular groove; 13-an annular groove; 14-a sealing ring; 15-a steel ring; 16-explosion-proof piece; 17-a cylindrical web; 2-a conductive post; 21-a base; 22-a column; 23-an annular groove; 24-lower thread; 3-an upper insulating plate; 31-a fan-shaped hole; 32-an insulating groove; 33-conductive post holes; 34-inner conductive post holes; 4-a collector tray; 41-fan-shaped convex blocks; 42-conductive post connection plate; 43-arc groove; 5-column cap; 51-upper thread; 6-rubber ring.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the coordinate system XYZ provided herein, the X axis represents the right direction in the forward direction, the X axis represents the left direction in the reverse direction, the Y axis represents the front direction, the Y axis represents the rear direction in the reverse direction, the Z axis represents the upper direction in the forward direction, and the Z axis represents the lower direction in the reverse direction. Also, it is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 description herein, references to "an embodiment," "one embodiment," and "one implementation," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or implementation is included in at least one embodiment or implementation of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
In order to solve the above problems, as shown in fig. 1, the utility model provides a cover body structure for cylindrical power battery, including a cap 1, a conductive column 2, an upper insulating plate 3, a current collecting disc 4 and a column cap 5, the cap 1 includes a cap body 10 and a snap ring 11, the snap ring 11 is arranged at the lower side of the outer edge of the cap body 10, a circular groove 12 is arranged in the middle of the upper surface of the cap body 10, and an annular groove 13 is arranged in the middle of the circular groove 12; a rubber ring 6 is arranged between the conductive column 2 and the upper insulating plate 3, a column cap 6 is arranged on the upper surface of the upper insulating plate 3, and the conductive column 2 penetrates through the rubber ring 6 and the upper insulating plate 3 and is connected with the conductive column 2; the surface of the upper insulating plate 3 is provided with a plurality of fan-shaped holes 31, the surface of the current collecting disc 4 is provided with a plurality of fan-shaped lugs 41, one side of the current collecting disc 4 is connected with a conductive column connecting plate 42, and two sides of the upper part of the conductive column connecting plate 42 are respectively provided with an arc-shaped groove 43.
It should be noted that the cap 1 and the housing are pressed and sealed by the snap ring 11 through a rolling groove machine, so that the cap 1 and the housing are not easily separated, the use safety is improved, the cap 1 has a certain compression-resistant tension due to the circular groove 12, and the compression-resistant and explosion-proof performance of the cap 1 is further improved due to the annular groove 13 in the middle of the cap 1; the rubber ring 6 is arranged between the conductive column 2 and the upper insulating plate 3, so that a good sealing effect is achieved between the conductive column 2 and the upper edge gathering plate, the working performance of the conductive column 2 is improved, charging and discharging are more efficient, the column cap 5 is used for locking the connection between the conductive column 2 and the upper insulating plate 3, and the column cap 5 and the conductive column 2 are made of the same material and have better conductive conductivity; the fan-shaped holes 31 and the fan-shaped lugs 41 are matched with each other and used for locking the connection between the upper insulating plate 3 and the current collecting disc 4 and fixing the conductive columns 2 at the same time, so that the conductive columns 2 are in close contact with the current collecting disc 4, the internal resistance is reduced, the battery core adopts an electrodeless lug structure, the conductive columns 2 are connected to the upper surfaces of the conductive column connecting plates 42, the battery core is connected to the bottoms of the conductive column connecting plates 42, the anode and the cathode are in large-range contact power supply, the internal resistance is reduced, the output power is improved, and the arc-shaped grooves 43 are used for reducing the internal resistance and increasing the power output and redundancy.
In an embodiment of the present invention, the fan-shaped protrusion 41 and the fan-shaped hole 31 are engaged with each other, so that the upper insulating plate 3, the conductive column 2 and the current collecting plate 4 are fixed to each other to prevent rotation, and have a good insulating effect.
In an embodiment of the present invention, the fan-shaped protrusion 41 is adhered to the upper surface of the current collecting plate 4, the fan-shaped protrusion 41 is made of insulating silica gel, and the fan-shaped protrusion 41 has insulating, heat dissipating and pressure resisting effects, thereby improving the safety performance of the power battery.
The utility model discloses an embodiment, the end-to-end connection of leading electrical pillar connecting plate 42 the bottom of current collecting dish 4, the front end of leading electrical pillar connecting plate 42 with the upper surface interval of current collecting dish 4 sets up.
It should be noted that, the conductive pillar connecting plate 42 is bent and arranged on the upper surface and the lower surface of the current collecting disc 4, the end of the conductive pillar connecting plate 42 is welded to the lower surface of the current collecting disc 4 by laser, and a gap is formed between the front end of the conductive pillar connecting plate 42 and the upper surface of the current collecting disc 4, so as to provide a certain buffer for the cover body and improve the compression resistance of the power battery.
In this embodiment, the conductive column 2 is placed on the conductive column connection plate 42 of the current collecting plate 4, the rubber ring 6 is sleeved on the conductive column 2, the fan-shaped hole 31 on the upper insulating plate 3 is sleeved on the fan-shaped bump 41 of the current collecting plate 4 and pressed tightly, the column cap 5 is pressed into the top end of the conductive column 2 and placed into the casing, and the cap 1 is pressed into the upper end of the casing.
As shown in fig. 2, in an embodiment of the present invention, a sealing ring 14 is disposed between the snap ring 11 and the circular groove 12, the sealing ring 14 is adhered to the back of the cap 1, a steel ring 15 is disposed between the sealing ring 14 and the circular groove 12, the steel ring 15 is located inside the cap 1, an explosion-proof sheet 16 is disposed inside the circular groove 12, and a cylindrical connecting plate 17 is disposed inside the annular groove 13.
It should be noted that a sealing ring 14 is arranged on the surface of the cap 1 contacting with the top of the battery shell, and when the cap 1 is pressed downwards, the sealing ring 14 is pressed downwards, so as to achieve the internal sealing effect of the power battery; a steel ring 15 is arranged in the outer ring of the cap 1, so that the hardness of the cap 1 is improved, and the cap 1 has an impact resistance effect; the explosion-proof piece 16 is placed in the circular groove 12 in the middle of the cap 1 and used for preventing the power battery from causing dangerous situations such as explosion due to improper use, and in order to improve the conductivity and reduce the internal resistance, the cylindrical connecting plate 17 is arranged on the inner side of the annular groove 13, and the cylindrical connecting plate 17 and the cap 1 are integrally designed, so that the power battery is more conductive and the output and input power is increased.
As shown in fig. 3, in an embodiment of the present invention, the conductive pillar 2 includes a base 21, a pillar 22 is disposed in the middle of the base 21, and an annular groove 23 is disposed on the outer side of the top of the pillar 22.
It should be noted that, base 21 and cylinder 22 body design improve electric conductive property, and base 21 and the contact of leading electrical pillar connecting plate 42, the lower pot head of cylinder 22 is equipped with rubber ring 6, and electrically conductive post hole 33 is passed to the middle section of cylinder 22, for the convenience of the mutual block of upper end and cap 5 of cylinder 22, is provided with ring channel 23 in the top outside of cylinder 22.
In an embodiment of the present invention, the column cap 5 is pressed on the annular groove 23, the annular groove 23 is located outside the top of the column body 22 of the conductive column 2, the column cap 5 is pressed down by a die casting machine, so that the column cap 5 is fixed on the top of the column body 22, and the conductive column 2 is fixed with the upper insulating plate 3.
In this embodiment, as shown in fig. 4, the conductive column 2 includes a base 21, a column 22 is disposed in the middle of the base 21, and a lower thread 24 is disposed on the outer side of the top of the column 22.
It should be noted that, base 21 and cylinder 22 integrated design, improve electric conductive property, base 21 and the contact of leading electrical pillar connecting plate 42, the lower pot head of cylinder 22 is equipped with rubber circle 6, and electrically conductive post hole 33 is passed through to the middle section of cylinder 22, for the convenience of the mutual twist of upper end and cap 5 of cylinder 22, is provided with lower screw thread 24 in the top outside of cylinder 22.
The column cap 5 is screwed on the lower thread 24, the lower thread 24 is positioned on the outer side of the top of the column body 22 of the conductive column 2, the upper thread 51 is arranged on the edge of the inner side of the bottom of the column cap 5, the column cap 5 is screwed on the column body 22 clockwise by using a screwing machine, so that the column cap 5 is fixed at the top end of the column body 22, and meanwhile, the conductive column 2 and the upper insulating plate 3 are fixed together.
As shown in fig. 5, in an embodiment of the present invention, an insulating groove 32 is formed on the inner side of the upper insulating plate 3, and a conductive post hole 33 is formed in the middle of the insulating groove 32.
It should be noted that the insulating groove 32 makes the upper insulating plate 3 and the current collecting plate 4 be attached more tightly, reduces the gap, and improves the insulating effect, and the conductive post hole 33 is arranged in the middle of the insulating groove 32, so that the conductive post 2 can conveniently penetrate through the upper insulating plate 3.
The utility model discloses an embodiment, the bottom in electrically conductive post hole 33 is provided with interior electrically conductive post hole 34, rubber circle 6 block in interior electrically conductive post hole 34, reached promptly and led the insulating effect between electrical pillar 2 and the last insulation board 3, rubber circle 6 is hidden in interior electrically conductive post hole 34, reduces the thickness of leading electrical pillar 2 and last insulation board 3, improves insulating effect, and the structure is compacter.
As shown in fig. 6, the rubber ring 6 is placed in the inner conductive post hole 34, the conductive post 2 passes through the conductive post hole 33 in the middle of the upper insulating plate 3, and the cap 5 is pressed on the top of the conductive post 2, thereby completing the installation of the conductive post 2 and the upper insulating plate 3.
The utility model also provides an electric motor car, include the frame and as in the above-mentioned embodiment a lid structure for cylinder type power battery, lid structure set up in the frame on.
It should be noted that, the electric motor car can be electric automobile, electric train, electric bicycle, golf cart etc. is fixed with power battery on the frame of electric motor car, and power battery's lid contains the utility model discloses a cylindrical power battery's lid structure.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.
Claims (10)
1. The cover body structure for the cylindrical power battery is characterized by comprising a cover cap (1), a conductive column (2), an upper insulating plate (3), a current collecting disc (4) and a column cap (5), wherein the cover cap (1) comprises a cover cap body (10) and a clamping ring (11), the clamping ring (11) is arranged on the lower side of the outer edge of the cover cap body (10), a circular groove (12) is formed in the middle of the upper surface of the cover cap body (10), and an annular groove (13) is formed in the middle of the circular groove (12); a rubber ring (6) is arranged between the conductive post (2) and the upper insulating plate (3), a post cap (5) is arranged on the upper surface of the upper insulating plate (3), and the conductive post (2) penetrates through the rubber ring (6) and the upper insulating plate (3) and is connected with the conductive post; the surface of the upper insulating plate (3) is provided with a plurality of fan-shaped holes (31), the surface of the current collecting disc (4) is provided with a plurality of fan-shaped convex blocks (41), one side of the current collecting disc (4) is connected with a conductive column connecting plate (42), and two sides of the upper part of the conductive column connecting plate (42) are respectively provided with an arc-shaped groove (43).
2. The cover structure for the cylindrical power battery as claimed in claim 1, wherein a sealing ring (14) is arranged between the snap ring (11) and the circular groove (12), the sealing ring (14) is adhered to the back of the cap (1), a steel ring (15) is arranged between the sealing ring (14) and the circular groove (12), the steel ring (15) is located inside the cap (1), an explosion-proof sheet (16) is arranged inside the circular groove (12), and a cylindrical connecting plate (17) is arranged inside the annular groove (13).
3. The cover structure for the cylindrical power battery as claimed in claim 1, wherein the upper insulating plate (3) is provided with an insulating groove (32) at an inner side thereof, a conductive post hole (33) is provided at a middle of the insulating groove (32), and the conductive post (2) passes through the conductive post hole (33).
4. The cover structure for the cylindrical power battery as claimed in claim 3, wherein the bottom of the conductive post hole (33) is provided with an inner conductive post hole (34), and the rubber ring (6) is clamped in the inner conductive post hole (34).
5. The cover structure for the cylindrical power battery as claimed in claim 1, wherein the conductive pillar (2) comprises a base (21), a pillar (22) is disposed in the middle of the base (21), an annular groove (23) is disposed on the outer side of the top of the pillar (22), and the base (21), the pillar (22) and the annular groove (23) are integrally formed.
6. The cover structure for cylindrical power battery as claimed in claim 5, wherein the cap (5) is press-fitted on the annular groove (23).
7. The cover structure for cylindrical power batteries according to claim 1, wherein the fan-shaped protrusion (41) is engaged with the fan-shaped hole (31).
8. The cover structure for the cylindrical power battery as claimed in claim 7, wherein the fan-shaped protrusion (41) is adhered to the upper surface of the current collecting plate (4), and the fan-shaped protrusion (41) is made of insulating silica gel.
9. The cover structure for the cylindrical power battery as claimed in claim 1, wherein the end of the conductive pillar connecting plate (42) is connected to the bottom of the current collecting disc (4), and the front end of the conductive pillar connecting plate (42) is spaced from the upper surface of the current collecting disc (4).
10. An electric vehicle, characterized by comprising a frame and a cover structure for a cylindrical power battery as claimed in any one of claims 1 to 9, wherein the cover structure is disposed on a power battery cover of the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220583605.8U CN217507500U (en) | 2022-03-17 | 2022-03-17 | A lid structure and electric motor car for cylinder type power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220583605.8U CN217507500U (en) | 2022-03-17 | 2022-03-17 | A lid structure and electric motor car for cylinder type power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217507500U true CN217507500U (en) | 2022-09-27 |
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ID=83346998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220583605.8U Active CN217507500U (en) | 2022-03-17 | 2022-03-17 | A lid structure and electric motor car for cylinder type power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217507500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116632466A (en) * | 2023-07-21 | 2023-08-22 | 四川易纳能新能源科技有限公司 | Secondary battery structure and secondary battery |
-
2022
- 2022-03-17 CN CN202220583605.8U patent/CN217507500U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116632466A (en) * | 2023-07-21 | 2023-08-22 | 四川易纳能新能源科技有限公司 | Secondary battery structure and secondary battery |
| CN116632466B (en) * | 2023-07-21 | 2023-11-07 | 四川易纳能新能源科技有限公司 | Secondary battery structure and secondary battery |
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