CN209896150U - High-voltage protection structure of combined battery pack - Google Patents
High-voltage protection structure of combined battery pack Download PDFInfo
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- CN209896150U CN209896150U CN201921188828.9U CN201921188828U CN209896150U CN 209896150 U CN209896150 U CN 209896150U CN 201921188828 U CN201921188828 U CN 201921188828U CN 209896150 U CN209896150 U CN 209896150U
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- upper cover
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- insulating cover
- assembled battery
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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 a high-pressure protective structure of assembled battery package for high pressure protection between battery box and the electric core module, including setting up the upper cover insulating boot between the electrically conductive aluminium bar on the case lid of battery box and the electric core module, and the upper cover insulating boot covers all electrically conductive aluminium bars on the electric core module. Above-mentioned high pressure protective structure through set up the upper cover insulating boot that covers all electrically conductive aluminium bars between case lid and aluminium bar, separates high-voltage component aluminium bar and case lid effectively, has avoided trampling the problem that causes case lid and aluminium bar contact to lead to electric core short circuit and personnel to electrocute because of personnel, has also promoted the high-pressure protective ability of battery package greatly.
Description
Technical Field
The utility model relates to a power battery technical field especially relates to a high-pressure protective structure of assembled battery package.
Background
The power battery pack generally includes a battery box and a battery cell module including a series of identical battery cells and other accessories, the battery cell module being disposed in the battery box. In recent years, with the increasing and popularizing of electric vehicles, fire accidents of the electric vehicles are also common to all terminals, and the safety performance of the electric vehicles is gradually emphasized. The reason is that the fire accident of the electric automobile is often caused by the short circuit of the battery, and the short circuit of the battery system occurs, and one important reason is that the protection and isolation between high voltages are unreasonable. Compared with an electric passenger vehicle, the battery system of the electric passenger vehicle is higher in voltage generally, higher in use strength and wider in arrangement and personnel. Therefore, how to design the high-voltage protection device in the battery pack, make high-voltage isolation, prevent the short circuit of the battery and prevent personnel from getting an electric shock is very important.
In summary, how to effectively solve the problem of insufficient high voltage protection inside the assembled battery pack has become a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high pressure protective structure of assembled battery package to solve the inside not enough problem of high pressure protection of assembled battery package.
In order to realize the above-mentioned purpose, the utility model provides a high-pressure protective structure of assembled battery package for the high pressure protection between battery box and the electric core module, including set up in the case lid of battery box with upper cover insulating boot between the electrically conductive aluminium bar on the electric core module, just upper cover insulating boot covers all electrically conductive aluminium bars on the electric core module.
Preferably, two side edges of the upper cover insulation cover are respectively provided with a hem bent downwards, and the distance between the two hems corresponds to the width of the battery cell module; the end part of the upper cover insulating cover is provided with a positioning groove, and the positioning groove is provided with a positioning hole for positioning the battery cell module.
Preferably, the top surface of the upper cover insulating cover is further provided with a foam mounting groove and a support groove for supporting the box cover.
Preferably, the foam mounting grooves penetrate through the length direction of the upper cover insulating cover, the number of the foam mounting grooves is multiple, one of the foam mounting grooves is arranged on the central line of the upper cover insulating cover, and the other foam mounting grooves are symmetrically arranged on two sides of the central line of the upper cover insulating cover; the supporting groove is positioned between two adjacent foam mounting grooves.
Preferably, an aluminum bar insulating cover is further arranged between the upper cover insulating cover and the battery cell module, and an aluminum bar mounting groove, an FPC (flexible printed circuit) pasting groove and a busbar output mounting groove are formed in the aluminum bar insulating cover; the quantity of aluminium bar mounting groove is a plurality of and each mutual isolation between the aluminium bar mounting groove.
Preferably, the structure forms of the aluminum bar mounting groove, the FPC bonding groove and the busbar output mounting groove are different.
Preferably, the battery cell module further comprises an insulation protection cap arranged at a junction of the outgoing line busbar of the battery cell module, the insulation protection cap comprises a cap shell with a cavity structure with an opening at one end, a boss is arranged on the outer side surface of the cap shell, a wire outlet hole communicated with the cavity of the cap shell is formed in the boss, the cavity is used for accommodating a bare terminal of the outgoing line busbar, and the wire outlet hole is used for leading out the outgoing line of the outgoing line busbar.
Preferably, still including set up in the end plate of battery box with the end plate insulating boot between the battery cell module.
Preferably, two side edges of the end plate insulation cover are provided with flanges turned over towards one side of the battery cell module.
Preferably, the position on the middle upper side of the end plate insulating cover is also provided with a wire outlet through hole for a heating film to be led out.
Compare in the introduction content of background art, the high pressure protective structure of above-mentioned assembled battery package for the high pressure protection between battery box and the electric core module, including setting up the upper cover insulating boot between the electrically conductive aluminium bar on the case lid of battery box and the electric core module, and all electrically conductive aluminium bars on the upper cover insulating boot cover electric core module. Above-mentioned high pressure protective structure through set up the upper cover insulating boot that covers all electrically conductive aluminium bars between case lid and aluminium bar, separates high-voltage component aluminium bar and case lid effectively, has avoided trampling the problem that causes case lid and aluminium bar contact to lead to electric core short circuit and personnel to electrocute because of personnel, has also promoted the high-pressure protective ability of battery package greatly.
Drawings
Fig. 1 is a schematic view of an explosion structure of a high-voltage protection structure of an assembled battery pack according to an embodiment of the present invention;
fig. 2 is a schematic structural view of an upper cover insulation cover according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an aluminum bar insulating cover according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an insulation protection cap according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an end plate insulating cover according to an embodiment of the present invention.
In the above-described figures 1-5,
the device comprises an upper cover insulating cover 1, a folded edge 11, a positioning groove 12, a positioning hole 121, a foam mounting groove 13, a supporting groove 14, an aluminum bar insulating cover 2, an aluminum bar mounting groove 21, a square hole 210, an FPC (flexible printed circuit) sticking groove 22, a busbar output mounting groove 23, a wire outlet busbar 3, an insulating protective cap 4, a cap shell 41, a cavity 411, a boss 42, a wire outlet hole 421, an end plate 5, an end plate insulating cover 6, a folded edge 61 and a wire outlet through hole 62.
Detailed Description
The core of the utility model is to provide a high pressure protective structure of assembled battery package to solve the inside not enough problem of high pressure protection of assembled battery package.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-5, the embodiment of the utility model provides a high-pressure protective structure of assembled battery package for high-pressure protection between battery box and the electric core module, including setting up upper cover insulating boot 1 between the electrically conductive aluminium bar on the case lid of battery box and the electric core module, and all electrically conductive aluminium bars on the electric core module are covered to upper cover insulating boot 1.
Above-mentioned high pressure protective structure through set up the upper cover insulating boot that covers all electrically conductive aluminium bars between case lid and aluminium bar, separates high-voltage component aluminium bar and case lid effectively, has avoided trampling the problem that causes case lid and aluminium bar contact to lead to electric core short circuit and personnel to electrocute because of personnel, has also promoted the high-pressure protective ability of battery package greatly.
In some specific embodiments, in order to enable the upper cover insulating cover to be well matched with the battery cell module, two side edges of the upper cover insulating cover 1 are respectively provided with a hem 11 which is bent downwards, and the distance between the two hems 11 corresponds to the width of the battery cell module; and the tip of upper cover insulating boot 1 is provided with constant head tank 12, is provided with the locating hole 121 that is used for with the location of electric core module on the constant head tank 12. Through the design of the folded edge, the positioning groove and the positioning hole, the upper cover insulating cover is more convenient to assemble. In addition, the upper cover insulating cover is generally made of a PP insulating material, has a thickness of 0.5mm, is light in weight and has good insulating property. It is understood that the above is only a preferred example of the material of the insulating cover of the upper cover according to the embodiment of the present invention, and in the practical application, other insulating materials commonly used by those skilled in the art may also be used.
In a further embodiment, the top surface of the upper cover insulating housing 1 is further provided with a foam mounting groove 13 and a support groove 14 for supporting the cover. The foam mounting groove is filled with foam, so that certain sound absorption and noise reduction functions can be achieved, and a box cover mounted on the upper cover insulating cover can be cushioned and damped; in addition, the lower surface of the supporting groove and the lower surface of the box cover are supported and attached, so that the supporting is more stable and reliable.
In some more specific embodiments, the foam installation grooves 13 penetrate the length direction of the upper cover insulating cover 1, the number of the foam installation grooves 13 is multiple, one of the foam installation grooves 13 is arranged on the center line of the upper cover insulating cover 1, and the other foam installation grooves 13 are symmetrically arranged on both sides of the center line of the upper cover insulating cover 1; the supporting groove 14 is positioned between two adjacent foam mounting grooves 13. Through the symmetrical arrangement mode of the foam mounting grooves, the upper cover insulating cover is improved in performance and structure. It can be understood, of course, that the arrangement manner of the foam mounting grooves is only a preferred example of the embodiment of the present invention, and in the practical application process, the arrangement manner of other positions can be selected according to the practical requirement.
In some more specific embodiments, an aluminum bar insulating cover 2 is further disposed between the upper cover insulating cover 1 and the cell module, and an aluminum bar mounting groove 21, an FPC bonding groove 22, and a busbar output mounting groove 23 are disposed on the aluminum bar insulating cover 2; the number of the aluminum bar mounting grooves 21 is plural and the aluminum bar mounting grooves 21 are isolated from each other. Through the design of above-mentioned aluminium bar mounting groove, place the aluminium bar in the aluminium bar mounting groove can prevent that the unexpected contact before the aluminium bar welding from causing the short circuit to aluminium bar insulating boot can prevent that aluminium bar welding slag from falling to pierce electric core blue membrane or shell between the electric core and cause dielectric breakdown or short circuit, can increase the creepage distance between electric core post simultaneously, further promotes high-pressure barrier propterty.
In some more specific embodiments, the aluminum bar mounting groove 21, the FPC attaching groove 22, and the bus bar output mounting groove 23 are formed in different patterns. Generally speaking, two square holes are formed in the bottom of the aluminum bar mounting groove 21 and used for extending out of a battery cell pole of the battery cell module; a square hole is formed in the bottom of the busbar output mounting groove 23 and used for being connected and matched with a pole of a battery cell. In addition, different types of aluminum bars are placed in different mounting grooves, so that the aluminum bars of different types can be prevented from being misplaced.
In some more specific embodiments, the high-voltage protection structure further includes an insulation protection cap 4 disposed at a connection position of the outlet busbar 3 of the cell module, the insulation protection cap 4 includes a cap shell 41 having a cavity structure with an opening at one end, a boss 42 is disposed on an outer side surface of the cap shell 41, a wire outlet hole 421 penetrating through a cavity 411 of the cap shell 41 is disposed on the boss 42, the cavity 411 is used for accommodating a bare terminal of the outlet busbar 3, and the wire outlet hole 421 is used for leading out an outlet wire of the outlet busbar 3. Through the design of insulating protective cap, the exposed tip of female arranging and other part contact of electronic box have been kept apart effectively, the risk of avoiding short circuit and personnel to electrocute. And, in general, the insulation protection cap is made of PVC insulation material, is deformable, and has good insulation performance. The outgoing bus bar is used as a current transmission component, and the outgoing bus bar comprises three types, namely a positive output copper bar, a fuse copper bar and a negative output copper bar. The middle part of the copper bar is wrapped by an insulating heat-shrinkable sleeve, and two ends of the copper bar are required to be matched with other flow guide components and are exposed parts. Two ends of the positive output copper bar are respectively connected with the positive high-voltage connector and the positive electrode of the module, and the insulating protective cap is arranged at the joint; two ends of the fuse copper bar are respectively connected with the module cathode and the MSD anode, and the insulation protective cap is arranged at the joint; and the negative electrode output copper bar is respectively connected with the negative electrode of the MSD and the negative electrode high-voltage connector, and the insulating protective cap is arranged at the joint. Through installing the insulating protective cap in the position, the junction of the outgoing line busbar and other flow guide components can be completely wrapped, and the short circuit and electric shock caused by the contact of the junction and other components of the battery box are avoided.
In a further embodiment, the high-voltage protection structure further includes an end plate insulating cover 6 disposed between the end plate 5 of the battery box and the cell module. Through set up the end plate insulating boot between end plate and electric core module, can increase insulation resistance value effectively, improve high-pressure barrier propterty. It should be noted that, in general, the end plate insulating cover is made of PP or PC material, but in practical application, it may be made of other insulating materials commonly used by those skilled in the art.
In addition, in order to enable the end plate insulating cover to better wrap the cell module, flanges 61 which are turned over towards one side of the cell module are arranged on two side edges of the end plate insulating cover 6; in order to facilitate the heating film outlet, generally, the outlet through holes 62 (generally two rectangular through holes symmetrically distributed) for the heating film outlet are further provided at the upper position of the middle part of the end plate insulating cover 6.
It is right above the utility model provides a high-pressure protective structure of assembled battery package has carried out detailed introduction. It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
It is also noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The utility model provides a high-pressure protective structure of assembled battery package for the high pressure protection between battery box and the electric core module, its characterized in that, including set up in the case lid of battery box with upper cover insulating boot (1) between the electrically conductive aluminium bar on the electric core module, just upper cover insulating boot (1) covers all electrically conductive aluminium bars on the electric core module.
2. The high-voltage protection structure of the assembled battery pack according to claim 1, wherein two side edges of the upper cover insulating cover (1) are provided with downward bent folded edges (11), and the distance between the two folded edges (11) corresponds to the width of the battery cell module; the end part of the upper cover insulating cover (1) is provided with a positioning groove (12), and the positioning groove (12) is provided with a positioning hole (121) used for positioning the battery cell module.
3. The high voltage protection structure of an assembled battery pack according to claim 2, wherein the top surface of the upper cover insulating case (1) is further provided with a foam mounting groove (13) and a support groove (14) for supporting the case cover.
4. The high voltage protection structure of the assembled battery pack according to claim 3, wherein the foam mounting grooves (13) penetrate the length direction of the upper cover insulating cover (1), and the number of the foam mounting grooves (13) is plural, and one of the foam mounting grooves (13) is arranged on the center line of the upper cover insulating cover (1), and the other foam mounting grooves (13) are symmetrically arranged on both sides of the center line of the upper cover insulating cover (1); the supporting groove (14) is positioned between two adjacent foam mounting grooves (13).
5. The high-voltage protection structure of the assembled battery pack according to any one of claims 1 to 4, wherein an aluminum bar insulating cover (2) is further disposed between the upper cover insulating cover (1) and the battery core module, and an aluminum bar mounting groove (21), an FPC bonding groove (22) and a busbar output mounting groove (23) are disposed on the aluminum bar insulating cover (2); the number of aluminium bar mounting groove (21) is a plurality of and each keep apart each other between aluminium bar mounting groove (21).
6. The high voltage protection structure of the assembled battery pack according to claim 5, wherein the aluminum bar mounting groove (21), the FPC bonding groove (22), and the busbar output mounting groove (23) are different in structural form.
7. The high-voltage protection structure of the combined battery pack according to any one of claims 1 to 4 and 6, further comprising an insulation protection cap (4) disposed at a connection position of the outlet busbar (3) of the battery cell module, wherein the insulation protection cap (4) comprises a cap shell (41) having a cavity structure with an opening at one end, a boss (42) is disposed on an outer side surface of the cap shell (41), an outlet hole (421) penetrating through a cavity (411) of the cap shell (41) is disposed on the boss (42), the cavity (411) is used for accommodating a bare terminal of the outlet busbar (3), and the outlet hole (421) is used for leading out an outlet of the outlet busbar (3).
8. The high voltage protection structure of the assembled battery pack according to any one of claims 1 to 4 and 6, further comprising an end plate insulating cover (6) disposed between an end plate (5) of the battery case and the cell module.
9. The high-voltage protection structure of the assembled battery pack according to claim 8, wherein two sides of the end plate insulating cover (6) are provided with flanges (61) folded toward one side of the cell module.
10. The high voltage prevention structure of an assembled battery pack according to claim 9, wherein the end plate insulation cover (6) is further provided at a position above the middle thereof with a wire outlet through hole (62) for a heating film wire outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188828.9U CN209896150U (en) | 2019-07-25 | 2019-07-25 | High-voltage protection structure of combined battery pack |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921188828.9U CN209896150U (en) | 2019-07-25 | 2019-07-25 | High-voltage protection structure of combined battery pack |
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| CN209896150U true CN209896150U (en) | 2020-01-03 |
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| CN201921188828.9U Active CN209896150U (en) | 2019-07-25 | 2019-07-25 | High-voltage protection structure of combined battery pack |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067086A (en) * | 2021-03-16 | 2021-07-02 | 安徽舟之航电池有限公司 | Large cylindrical battery integrated module for electric automobile and manufacturing method thereof |
| CN114335854A (en) * | 2020-09-29 | 2022-04-12 | Hl绿色动力株式会社 | Small-sized battery module and battery pack provided with same |
| CN115320523A (en) * | 2022-08-30 | 2022-11-11 | 东风华神汽车有限公司 | Storage battery frame and car |
| WO2022239934A1 (en) * | 2021-05-11 | 2022-11-17 | 주식회사 엘지에너지솔루션 | Battery module and battery pack comprising same |
| WO2022250287A1 (en) * | 2021-05-28 | 2022-12-01 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including same |
| WO2023065193A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical device, and method and equipment for manufacturing battery cell |
| WO2023096193A1 (en) * | 2021-11-26 | 2023-06-01 | 주식회사 엘지에너지솔루션 | Battery module |
-
2019
- 2019-07-25 CN CN201921188828.9U patent/CN209896150U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114335854A (en) * | 2020-09-29 | 2022-04-12 | Hl绿色动力株式会社 | Small-sized battery module and battery pack provided with same |
| CN114335854B (en) * | 2020-09-29 | 2024-08-27 | Hl绿色动力株式会社 | Small battery module and battery pack provided with same |
| CN113067086A (en) * | 2021-03-16 | 2021-07-02 | 安徽舟之航电池有限公司 | Large cylindrical battery integrated module for electric automobile and manufacturing method thereof |
| WO2022239934A1 (en) * | 2021-05-11 | 2022-11-17 | 주식회사 엘지에너지솔루션 | Battery module and battery pack comprising same |
| WO2022250287A1 (en) * | 2021-05-28 | 2022-12-01 | 주식회사 엘지에너지솔루션 | Battery module and battery pack including same |
| WO2023065193A1 (en) * | 2021-10-20 | 2023-04-27 | 宁德时代新能源科技股份有限公司 | Battery cell, battery, electrical device, and method and equipment for manufacturing battery cell |
| WO2023096193A1 (en) * | 2021-11-26 | 2023-06-01 | 주식회사 엘지에너지솔루션 | Battery module |
| CN115320523A (en) * | 2022-08-30 | 2022-11-11 | 东风华神汽车有限公司 | Storage battery frame and car |
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