CN218996913U - Battery pack protection structure - Google Patents
Battery pack protection structure Download PDFInfo
- Publication number
- CN218996913U CN218996913U CN202222777149.3U CN202222777149U CN218996913U CN 218996913 U CN218996913 U CN 218996913U CN 202222777149 U CN202222777149 U CN 202222777149U CN 218996913 U CN218996913 U CN 218996913U
- Authority
- CN
- China
- Prior art keywords
- battery pack
- management system
- shell
- battery
- pack protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery PACK protection structure, which comprises a battery PACK with a shell, wherein the shell is provided with a wire outlet hole; the battery PACK protection lower shell is provided with an opening, the battery PACK is arranged in the battery PACK protection lower shell, and the bottom of the battery PACK protection lower shell is fixedly connected with the bottom of the battery PACK; the upper shell comprises a battery PACK protection upper shell and a battery management system installation cavity, and the outer edge of an opening of the battery PACK protection upper shell is connected with the outer edge of an opening of a battery PACK protection lower shell in a sealing manner; a battery management system PCB is arranged in the battery management system mounting cavity, a sealing layer is arranged at the upper end of the PCB, and a wire outlet hole is formed in the bottom of the battery management system mounting cavity; the positive electrode and negative electrode electric connection mechanism and the signal acquisition wire harness penetrate out of the wire hole of the battery PACK shell and then enter the battery management system installation cavity from the wire hole at the bottom of the battery management system installation cavity, so that the battery PACK is electrically connected with the battery management system PCB and an external circuit; and the wire outlet holes are provided with sealing structures. The structure has better waterproof property.
Description
Technical Field
The utility model relates to the technical field of energy storage power supplies, in particular to a battery pack protection structure.
Background
At present, energy storage power supplies in the market do not adopt effective three-proofing treatment, but generally only three-proofing treatment is carried out on a BMS (battery management system) board, the battery is used in a normal environment, the battery cannot be problematic, but the battery is subjected to high-low temperature alternation or high humidity environment, water vapor enters the inside through a heat dissipation port of the whole machine, the surface of a PCB board and a battery cell is condensed, and because almost all elements of the BMS are electrified, the elements are damaged in a large area due to dew condensation, so that the whole machine is permanently damaged, and the use experience of a user is poor.
Disclosure of Invention
The utility model aims to provide a battery pack protection structure, which enables a battery pack to have higher waterproof grade.
In order to achieve the technical effect, the utility model provides a battery PACK protection structure, which comprises a battery PACK with a shell, wherein the battery PACK shell is provided with a wire outlet hole, and the battery PACK is provided with an anode electric connection mechanism, a cathode electric connection mechanism and a signal acquisition wire harness; the battery PACK protection lower shell is provided with an opening, the battery PACK is arranged in the battery PACK protection lower shell, and the bottom of the battery PACK protection lower shell is fixedly connected with the bottom of the battery PACK shell; the upper shell comprises a battery PACK protection upper shell matched with a battery PACK protection lower shell and a battery management system installation cavity arranged above the battery PACK protection upper shell, and the outer edge of an opening of the battery PACK protection upper shell is in sealing connection with the outer edge of an opening of the battery PACK protection lower shell; a battery management system PCB is arranged in the battery management system mounting cavity, a battery management system sealing layer is arranged at the upper end of the battery management system PCB, and a wire outlet hole is formed in the bottom of the battery management system mounting cavity; the positive electrode electric connection mechanism, the negative electrode electric connection mechanism and the signal acquisition wire harness penetrate out of the wire hole of the battery PACK shell and then enter the battery management system installation cavity from the wire hole at the bottom of the battery management system installation cavity, so that the battery PACK is electrically connected with the battery management system PCB and an external circuit; seal structures are arranged at the wire outlet hole of the PACK shell and the wire outlet hole at the bottom of the battery management system installation cavity.
Through the design of the two-layer shell of battery PACK in the structure, the battery can be effectively isolated from the external atmospheric environment, water vapor is prevented from entering, meanwhile, the waterproof performance of the battery PACK is improved by arranging a seal between the PCB board of the battery management system, the electric wire harness and the wire outlet holes and between the upper shell and the lower shell, and the battery PACK and the surface dew of the battery management system are prevented from damaging components such as a battery core, a nickel sheet and the PCB due to alternating high temperature and low temperature when the battery PACK is used by a user.
Further, the positive electrode electric connection mechanism is a positive electrode electric connection copper bar, the negative electrode electric connection mechanism is a negative electrode electric connection copper bar, and the signal acquisition wire harness comprises a voltage signal acquisition wire harness and a temperature signal acquisition wire harness.
Further, the wire outlet hole of the battery PACK shell and the wire outlet hole at the bottom of the battery management system installation cavity are sealed by sealant.
Further, the battery management system sealing layer is a potting layer made of potting adhesive.
Further, the outer edge of the opening of the upper shell of the battery PACK protection and the outer edge of the opening of the lower shell of the battery PACK protection are sealed through sealant.
Further, a one-way exhaust valve is arranged on the side surface of the battery PACK protection upper shell or the side surface of the battery PACK protection lower shell.
Further, the outside of battery PACK protection inferior valve bottom is equipped with fixed mounting base.
The beneficial effects of the utility model are as follows: the battery is effectively isolated from the external atmospheric environment, steam is prevented from entering, the battery PACK is effectively prevented from being damaged by condensation on the surfaces of the battery PACK and the battery management system due to high-low temperature alternation, and the waterproof grade of the battery PACK is improved.
Drawings
The accompanying drawings, in which like reference numerals refer to identical or similar parts throughout the several views and which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model unduly. In the drawings:
FIG. 1 is a schematic view of a battery pack protection structure according to the present utility model;
in the figure, a battery PACK housing 10, a battery PACK housing wire outlet 11, a battery PACK protection lower housing 12, a battery PACK protection upper housing 13, a fixed mounting base 14, a one-way exhaust valve 15, a sealant 16, an upper housing 20, a battery management system mounting chamber 21, a battery management system PCB 22, a battery management system sealing layer 23, a battery management system mounting chamber bottom wire outlet 24, a sealing structure 25, an anode electrical connection mechanism 26, a cathode electrical connection mechanism 27 and a signal acquisition wire harness 28.
Detailed Description
Referring to fig. 1, in one embodiment of the present utility model, the battery PACK protection structure includes a battery PACK with a housing 10, wherein a wire outlet hole 11 is formed on the housing 10 of the battery PACK, and the battery PACK is provided with a positive electrode electrical connection mechanism 26, a negative electrode electrical connection mechanism 27 and a signal acquisition wire harness 28; a battery PACK protection lower case 12 provided with an opening, wherein the battery PACK is installed in the battery PACK protection lower case 12, and the bottom of the battery PACK protection lower case 12 is fixedly connected with the bottom of the battery PACK case 10; an upper case 20, wherein the upper case 20 comprises a battery PACK protection upper case 13 matched with the battery PACK protection lower case 12, and a battery management system installation cavity 21 positioned above the battery PACK protection upper case 13, and the opening outer edge of the battery PACK protection upper case 13 is in sealing connection with the opening outer edge of the battery PACK protection lower case 12; a battery management system PCB 22 is arranged in the battery management system mounting chamber 21, a battery management system sealing layer 23 is arranged at the upper end of the battery management system PCB 22, and a wire outlet hole 24 is formed in the bottom of the battery management system mounting chamber 21; the positive electrode electric connection mechanism 26, the negative electrode electric connection mechanism 27 and the signal acquisition wire harness 28 penetrate through the wire hole 11 of the battery PACK shell and then enter the battery management system installation cavity 21 from the wire hole 24 at the bottom of the battery management system installation cavity 21 so as to realize the electric connection between the battery PACK and the battery management system PCB 22 and the electric connection between the battery PACK and an external circuit; and sealing structures 25 are arranged at the positions of the PACK shell wire outlet holes 11 and the wire outlet holes 24 at the bottom of the battery management system installation cavity 21.
Through the design of the two-layer shell of battery PACK in the structure, the battery can be effectively isolated from the external atmospheric environment, water vapor is prevented from entering, meanwhile, the waterproof performance of the battery PACK is improved due to the fact that the battery PACK is sealed between the PCB 22 of the battery management system, the electric wire harness for connecting the battery cell in the battery PACK and the PCB 22 of the battery management system and the wire outlet holes and between the upper shell and the lower shell, and the damage of components such as the battery cell, the nickel sheet and the PCB caused by condensation on the surfaces of the battery PACK and the battery management system due to the alternating high temperature and low temperature can be effectively prevented.
The electrical connection mechanism and the signal acquisition wire harness 28 can be selectively placed in the same wire outlet hole under the condition of no mutual influence, the space is saved in the mode, the sealing is not easy, the safety is low, preferably, the bottoms of the battery PACK shell 10 and the battery management system installation cavity 21 are respectively provided with at least three wire outlet holes, and the positive electrode electrical connection mechanism 26, the negative electrode electrical connection mechanism 27 and the signal acquisition wire harness 28 are respectively in and out from different wire outlet holes.
The upper end of the battery management system installation cavity 21 can be selected according to the actual use environment to determine whether to cover, if only the charge and discharge function is needed, the upper end cover can be selected, a waterproof interface is arranged on the outer side of the battery management system installation cavity 21 to be connected with an external circuit, and if a user needs to place the battery pack protection structure and other electrical systems such as an inverter in a shell together, the upper end cover does not need to be performed on the battery management system installation cavity 21, the installation space is saved, and the circuit connection is more convenient.
Preferably, the positive electrode electric connection mechanism 26 is a positive electrode electric connection copper bar, the negative electrode electric connection mechanism 27 is a negative electrode electric connection copper bar, under the sealed condition, the service life of the copper bar as a conductive connection body is longer, the signal acquisition wire harness 28 is used for acquiring internal state signals of the battery PACK, ensuring that the battery is in a good charge-discharge or electricity-storage state, and timely feeding back to the battery management system for stopping when abnormality is detected, and the signal acquisition wire harness 28 is preferably a voltage signal acquisition wire harness and a temperature signal acquisition wire harness.
Specifically, the positions of the battery PACK shell wire outlet hole 11 and the bottom wire outlet hole 24 of the battery management system installation cavity 21 are sealed by sealant. The non-conductive sealant is adopted for sealing, so that the safety can be ensured while the assembly is convenient. Optionally, the non-conductive sealant is an epoxy potting adhesive.
The battery management system sealing layer 23 can be made of three-proofing paint or pouring sealant, if the three-proofing paint is used, the sealing layer should cover all components, and if the pouring sealant is used, the height of the sealing layer should at least exceed exposed electrified parts such as pins of electrical components.
The existing sealing connection mode is suitable for sealing connection between the outer edge of the opening of the upper battery PACK protection shell 13 and the outer edge of the opening of the lower battery PACK protection shell 12, specifically, the fixing connection between the outer edge of the opening of the upper battery PACK protection shell 13 and the outer edge of the opening of the lower battery PACK protection shell 12 can be selected, if threaded connection and clamping connection are adopted, then a sealing structure is adopted to seal the interface, for example, a waterproof rubber pad is arranged at the interface, or sealing glue 16 is adopted to seal the interface.
Preferably, the side surface of the battery PACK protection upper shell 13 or the side surface of the battery PACK protection lower shell 12 is provided with a one-way exhaust valve 15, and hot air and water vapor in the battery PACK can be effectively discharged through the one-way exhaust valve 15, so that a good gas environment in the battery PACK is maintained.
Preferably, the outside of the bottom of the battery PACK protection lower shell 12 is provided with a fixed mounting base 14, which is convenient for fixed mounting, and likewise, the bottom of the battery PACK protection lower shell 12 and the bottom of the battery PACK housing 10 are fixedly connected, and the fixed mounting base can be also arranged.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (7)
1. A battery pack protection structure, comprising:
the battery PACK is provided with a shell, a wire outlet hole is formed in the shell of the battery PACK, and the battery PACK is provided with an anode electric connection mechanism, a cathode electric connection mechanism and a signal acquisition wire harness;
the battery PACK protection lower shell is provided with an opening, the battery PACK is arranged in the battery PACK protection lower shell, and the bottom of the battery PACK protection lower shell is fixedly connected with the bottom of the battery PACK shell;
an upper housing including a battery PACK protection upper case mated with a battery PACK protection lower case, a battery management system installation chamber located above the battery PACK protection upper case;
the outer edge of the opening of the battery PACK protection upper shell is connected with the outer edge of the opening of the battery PACK protection lower shell in a sealing way;
a battery management system PCB is arranged in the battery management system mounting cavity, a battery management system sealing layer is arranged at the upper end of the battery management system PCB, and a wire outlet hole is formed in the bottom of the battery management system mounting cavity;
the positive electrode electric connection mechanism, the negative electrode electric connection mechanism and the signal acquisition wire harness penetrate out of the wire hole of the battery PACK shell and then enter the battery management system installation cavity from the wire hole at the bottom of the battery management system installation cavity, so that the battery PACK is electrically connected with the battery management system PCB and an external circuit;
seal structures are arranged at the wire outlet hole of the PACK shell and the wire outlet hole at the bottom of the battery management system installation cavity.
2. The battery pack protection structure according to claim 1, wherein: the positive electrode electric connection mechanism is a positive electrode electric connection copper bar, the negative electrode electric connection mechanism is a negative electrode electric connection copper bar, and the signal acquisition wire harness comprises a voltage signal acquisition wire harness and a temperature signal acquisition wire harness.
3. The battery pack protection structure according to claim 1, wherein: and the wire outlet hole of the battery PACK shell and the wire outlet hole at the bottom of the battery management system installation cavity are sealed by sealant.
4. The battery pack protection structure according to claim 1, wherein: the battery management system sealing layer is a sealing layer formed by pouring sealant.
5. The battery pack protection structure according to claim 1, wherein: the outer edge of the opening of the battery PACK protection upper shell and the outer edge of the opening of the battery PACK protection lower shell are sealed through sealant.
6. The battery pack protection structure according to claim 1, wherein: the battery PACK protection upper shell side or the battery PACK protection lower shell side is provided with a one-way exhaust valve.
7. The battery pack protection structure according to claim 1, wherein: and a fixed mounting base is arranged on the outer side of the bottom of the battery PACK protection lower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222777149.3U CN218996913U (en) | 2022-10-21 | 2022-10-21 | Battery pack protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222777149.3U CN218996913U (en) | 2022-10-21 | 2022-10-21 | Battery pack protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218996913U true CN218996913U (en) | 2023-05-09 |
Family
ID=86195771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222777149.3U Active CN218996913U (en) | 2022-10-21 | 2022-10-21 | Battery pack protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218996913U (en) |
-
2022
- 2022-10-21 CN CN202222777149.3U patent/CN218996913U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100555713C (en) | The earthquake-resistant moisture-proof power battery pack | |
| CN206134770U (en) | Power battery packaging structure and electric motor car | |
| CN211017194U (en) | Large capacity power battery module | |
| US20200373542A1 (en) | Battery power extraction and integration structure, battery pack and vehicle | |
| CN216960529U (en) | Circuit board assembly, battery and electric equipment | |
| CN218996913U (en) | Battery pack protection structure | |
| CN113140851A (en) | Lithium ion battery module | |
| CN208433452U (en) | A kind of battery pack and the robot with the battery pack | |
| CN216015523U (en) | Top cap subassembly and electric core of electric core | |
| CN110289385A (en) | A kind of battery modules | |
| CN209389150U (en) | Cylindrical lithium battery with anode weakly conductive | |
| CN221201442U (en) | Battery pack and energy storage device | |
| CN211089225U (en) | Power-off protection device for vehicle-mounted equipment | |
| CN216133929U (en) | Module structure capable of adapting to expansion and contraction of battery core | |
| CN218274899U (en) | Dry cell structure for lamp decoration | |
| CN218586284U (en) | Battery with a battery cell | |
| CN221007879U (en) | Positioning device for container | |
| CN216872884U (en) | Waterproof portable energy storage power supply | |
| CN219678771U (en) | Signal integrated board and battery pack | |
| CN219959326U (en) | Power battery PACK | |
| CN219419288U (en) | Lithium battery module | |
| CN212063522U (en) | Charger with overload short-circuit protection alarming function | |
| CN218472236U (en) | Battery pack | |
| CN218498305U (en) | Button cell with switching component | |
| CN217209157U (en) | Dustproof and waterproof's battery for solar street lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |