CN211828983U - Equipotential connection elastic structure inside battery pack - Google Patents
Equipotential connection elastic structure inside battery pack Download PDFInfo
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- CN211828983U CN211828983U CN202020105723.9U CN202020105723U CN211828983U CN 211828983 U CN211828983 U CN 211828983U CN 202020105723 U CN202020105723 U CN 202020105723U CN 211828983 U CN211828983 U CN 211828983U
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- spring
- battery pack
- compression
- equipotential
- positioning pin
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an inside equipotential of battery package connects elastic structure, including compression spring, battery package box and water-cooling board, wherein: the lower end of the compression spring is in compression joint with the top surface of the battery pack box body; the upper end of the compression spring is in compression joint with the bottom surface of the water cooling plate; spring positioning pins which are vertically distributed are fixed on the top surface of the battery pack box body; the compression spring is sleeved outside the spring positioning pin; the water cooling plate is positioned right above the spring positioning pin, and a positioning hole is formed in the position corresponding to the spring positioning pin; and the top of the spring positioning pin is inserted into the positioning hole. The utility model discloses an inside equipotential connection elastic structure of pond package, structural design science can let battery package box and water-cooling board switch on and form the equipotential and connect through the spring of elastic compression, absorbs outside vibrations and impact energy simultaneously, avoids connecting not hard up, avoids the potential safety hazard from this bringing, promotes the whole security performance of battery package effectively.
Description
Technical Field
The utility model relates to a new energy battery technical field especially relates to an inside equipotential connection elastic structure of battery package.
Background
At present, in the new energy lithium battery industry, the equipotential problem of a battery pack is of great importance, and according to the record of the 3 rd part of the national standard GB/T18384-32015 safety requirement for electric vehicles, the equipotential (potential equalization) is defined as follows: the potential difference between the electrically conductive parts of the electrical device is minimized. Under the condition of equipotential connection, even if the insulation between the anode or the cathode of the battery pack and the battery pack shell fails due to faults, all exposed metal parts on the vehicle reach the same potential through equipotential connection, so that no current is generated when a human body contacts the metal parts, the human body is still safe on the vehicle, and no electric shock accident occurs.
In order to achieve the potential balance of the battery pack, the methods of various manufacturers are different, and the manufacturers have advantages and disadvantages. At present, most manufacturers in the industry adopt a scheme of fastening the upper cover at the joint through a bolt assembly, and the scheme enables the joint to be a rigid body, so that the joint is easy to loosen due to vibration impact in the running of a vehicle, the risks of damaging a surface treatment coating, breaking and failure of the joint and the like exist, the cost is high, and the installation is complex.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an inside equipotential connection elastic structure of battery package to the technical defect that prior art exists.
Therefore, the utility model provides an inside equipotential of battery package connects elastic structure, including compression spring, battery package box and water-cooling board, wherein:
the lower end of the compression spring is in compression joint with the top surface of the battery pack box body;
the upper end of the compression spring is in compression joint with the bottom surface of the water cooling plate;
spring positioning pins which are vertically distributed are fixed on the top surface of the battery pack box body;
the compression spring is sleeved outside the spring positioning pin;
the water cooling plate is positioned right above the spring positioning pin, and a positioning hole is formed in the position corresponding to the spring positioning pin;
and the top of the spring positioning pin is inserted into the positioning hole.
Wherein, the right end part of the water cooling plate is fixedly connected with the inner side wall of the battery pack box body.
The shape and size of the spring positioning pin are correspondingly matched with those of the positioning hole.
Wherein, the compression spring is made of stainless steel.
Wherein, the compression spring is a spiral spring.
By the above the technical scheme the utility model provides a it is visible, compare with prior art, the utility model provides an inside equipotential connection elastic structure of battery package, its structural design science can pass through the spring of elasticity compression, lets battery package box and water-cooling board switch on and form the equipotential and connect, absorbs outside vibrations and impact energy simultaneously, avoids connecting not hard up, avoids the potential safety hazard that brings from this, has effectively promoted the overall safety performance of battery package.
The utility model discloses, it has the assembly simply, low cost, convenient dismantlement, good reliability, shock attenuation shock resistance, can satisfy advantages such as the balanced standard of electric potential completely, this connection structure does not need special surface treatment moreover, does not need special protection, self has good corrosion resisting property.
Drawings
Fig. 1 is a schematic diagram of an equipotential connection elastic structure inside a battery pack provided by the present invention.
Detailed Description
In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, the present invention provides an equipotential connection elastic structure inside a battery pack, which can be applied to equipotential connection between a water-cooling plate of a lower power battery pack and a battery pack case, between an upper water-cooling plate and the battery pack, and between other structures of the battery pack that need to maintain potential balance; specifically including compression spring 1, battery package box 2 and water-cooling board 3, wherein:
the lower end of the compression spring 1 is in compression joint with the top surface of the battery pack box body 2 (namely, under the action of elastic force, the compression spring is in elastic contact connection);
the upper end of the compression spring 1 is in compression joint with the bottom surface of the water cooling plate 3;
the top surface of the battery pack box body 2 is fixed with vertically distributed spring positioning pins 4;
the compression spring 1 is sleeved outside the spring positioning pin 4;
the water cooling plate 3 is positioned right above the spring positioning pin 4, and a positioning hole 5 is formed in the position corresponding to the spring positioning pin 4;
the top of the spring positioning pin 4 is inserted into the positioning hole 5.
The utility model discloses in, on specifically realizing, be fixed connection (for example riveting or through screwed connection) between the right-hand member portion of water-cooling board 3 and the inside wall of battery package box 2.
The utility model discloses in, on specifically realizing, shape, the size of spring locating pin 4, with the corresponding matching of shape, the size of locating hole 5.
The utility model discloses in, in the concrete realization, compression spring 1 is the compression spring who adopts stainless steel to make, and compression spring 1 is the helical spring.
It should be noted that, to the utility model discloses, its specific assembly flow is: the stainless compression spring 1 and the battery pack box body 2 are in compression joint, and the matching part of the battery pack box body 2 and the compression spring 1 is provided with a spring positioning pin 4; the stainless steel compression spring 1 and the water cooling plate 3 are in compression joint, and a positioning hole 5 is arranged at the matching part of the water cooling plate 3. The utility model discloses an elastic compression spring 1 makes battery package box 2 switch on and form the equipotential with water cooling system (specifically be the water-cooling board).
To sum up, compare with prior art, the utility model provides a pair of inside equipotential connection elastic structure of battery package, its structural design science can let battery package box and water-cooling board switch on and form the equipotential and connect through elasticity compression's spring, absorbs outside vibrations and impact energy simultaneously, avoids connecting not hard up, avoids the potential safety hazard that from this brings, has effectively promoted the overall safety performance of battery package.
The utility model discloses, it has the assembly simply, low cost, convenient dismantlement, good reliability, shock attenuation shock resistance, can satisfy advantages such as the balanced standard of electric potential completely, this connection structure does not need special surface treatment moreover, does not need special protection, self has good corrosion resisting property.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides an inside equipotential of battery package connects elastic structure which characterized in that, includes compression spring (1), battery package box (2) and water-cooling board (3), wherein:
the lower end of the compression spring (1) is in compression joint with the top surface of the battery pack box body (2);
the upper end of the compression spring (1) is in compression joint with the bottom surface of the water cooling plate (3);
spring positioning pins (4) which are vertically distributed are fixed on the top surface of the battery pack box body (2);
the compression spring (1) is sleeved outside the spring positioning pin (4);
the water cooling plate (3) is positioned right above the spring positioning pin (4), and a positioning hole (5) is formed in the position corresponding to the spring positioning pin (4);
the top of the spring positioning pin (4) is inserted into the positioning hole (5).
2. The equipotential connection elastic structure inside a battery pack according to claim 1, wherein the right end of the water-cooling plate (3) is fixedly connected to the inner sidewall of the battery pack case (2).
3. The equipotential connection spring structure inside a battery pack according to claim 1, wherein the shape and size of the spring positioning pin (4) are matched to the shape and size of the positioning hole (5).
4. Equipotential connecting spring structure inside a battery pack according to any one of claims 1 to 3, wherein the compression spring (1) is a compression spring made of stainless steel.
5. Equipotential connecting spring structure inside a battery pack according to any one of claims 1 to 3, characterized in that the compression spring (1) is a coil-type spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105723.9U CN211828983U (en) | 2020-01-17 | 2020-01-17 | Equipotential connection elastic structure inside battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020105723.9U CN211828983U (en) | 2020-01-17 | 2020-01-17 | Equipotential connection elastic structure inside battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211828983U true CN211828983U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020105723.9U Active CN211828983U (en) | 2020-01-17 | 2020-01-17 | Equipotential connection elastic structure inside battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211828983U (en) |
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2020
- 2020-01-17 CN CN202020105723.9U patent/CN211828983U/en active Active
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