CN206834258U - Big voltage anti-explosion battery group - Google Patents
Big voltage anti-explosion battery group Download PDFInfo
- Publication number
- CN206834258U CN206834258U CN201720509045.0U CN201720509045U CN206834258U CN 206834258 U CN206834258 U CN 206834258U CN 201720509045 U CN201720509045 U CN 201720509045U CN 206834258 U CN206834258 U CN 206834258U
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- Prior art keywords
- battery
- battery core
- circuit board
- group
- explosion
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
It the utility model is related to a kind of big voltage anti-explosion battery group,It includes a battery case,The lid of one battery core group one,The battery core group includes at least two battery cores,The battery core is fixed in the battery case spaced reciprocally,The anti-explosion battery group also includes a hard circuit board,One flexible circuit board and an external connector,The flexible circuit board its one end is connected with the hard circuit board,Its other end is connected with the battery core group,And realize being connected in series between the battery core,The hard circuit board and the flexible circuit board are placed in the anti-explosion battery box,The hard circuit board is located at the side edge close to the battery case,The external connector is connected with the hard circuit board,The lid also includes a circle side wall,The external connector position is corresponded in the side wall and offers a through hole,The external connector extends outward through the through hole from the lid,The lid fits together with the battery case.
Description
Technical field
Explosion-proof electronic communication and all electronics fields containing general charged pool are the utility model is related to, more particularly to it is a kind of
The anti-explosion battery group that big voltage is provided applied to explosion-proof electronic communication product.
Background technology
At present, there are some special electronic products, it is necessary to larger operating voltage, and the voltage that single battery can provide
It is limited, therefore usually need to increase voltage ability normal use：For example the power supply that notebook computer needs is 7.4 volts, such as electricity
The operating voltage of bottle electric car is usually 36 volts etc., the voltage range that all significantly larger than single battery core can provide；It is meanwhile single
Battery core is to be extremely difficult to so high voltage in actual production manufacturing process, therefore, multiple battery core series connection occurs to increase
The situation of operating voltage；Moreover, the safety in utilization of electronic product also increasingly obtains the attention of users, therefore, tool
The research and development of the explosion-proof big voltage battery of standby high safety in utilization become more and more important.
By taking existing big voltage anti-explosion battery group as an example, Fig. 1 and Fig. 2 is refer to, existing explosion-proof big voltage battery group includes one
Battery base 100, the battery core 300, four of a cell cover 200, two connection nickel strap 400, outside a hard circuit board 500 and one
Port 600 is connect, the battery core 300 is located in the battery base 100 with overlapped way, it is contemplated that the battery core 300 need to possess
Good explosion-proof performance so as to need carry out air exclusion, it is therefore desirable to avoid phase between the mutually overlapping face of the battery core 300
Mutually contact is so as to employ gluing technique whole face filling antiexplosion adhesive, and then to be connected in series between the battery core 300, that is, pass through by
Both positive and negative polarity of the one end of two connection nickel straps 400 respectively with the battery core 300 is welded to connect, and its other end is then connected to
On one hard circuit board 500, two battery cores 300 are connected as a series line after being respectively connecting to the hard circuit board 500
Road, while the input of external-connected port 600 is connected on hard circuit board 500, its output end then with corresponding electronic products
It is connected, and then realizes the power supply of product main body；And the cell cover 200 fits together with the battery base 100, and then
A complete anti-explosion battery group is formed, for providing big operating voltage for corresponding electronic products.
Problems be present in two above battery core tandem type anti-explosion battery group：First, the whole face of the existing battery core 300 is beaten
Required for glue mode man-hour length, and need wait antiexplosion adhesive done it is later could enter next step, influence production efficiency；
Secondly, the welding position of the connection nickel strap 400 is the side of the battery core 300, and the nickel strap 400 that connects is from the battery core
The hard circuit board 500 is soldered to after 300 same face extension, such a mode is prolonged in the same direction due to the connection nickel strap 400
Stretch, therefore cause welding region to be limited, and both positive and negative polarity short circuit is also easy to produce in welding process and triggers battery explosion, operation be present not
Just and larger potential safety hazard；In addition, according to different products to the different demands of operating voltage, it is necessary to which the quantity of battery core is also
It is different, mode is connected in series with reference to of the prior art, the connection nickel strap can not realize standard there will be bigger difference
Change, and different connection nickel straps is required for different moulds to manufacture, therefore the cost of product will increase；In addition, institute
During stating being welded to connect of battery core, in order to reduce the weldering of the anode/cathode error of the battery core or short circuit, in the explosion-proof battery core group
, it is necessary to which making special fixture auxiliary completes welding to avoid the problem in assembling production, production cost is also improved.
Based on problem above, the utility model is intended to improve the assembling design mode of existing anti-explosion battery group, proposes a kind of
New is connected in series mode, and effectively to solve the problem present on, and then offer one kind has safety in utilization, production technology
Simply, the big voltage anti-explosion battery group of cost-effective reduction.
The content of the invention
The utility model provides a kind of big voltage anti-explosion battery group, and the battery pack can solve anti-explosion electric of the prior art
The problem of pond group is existing because expending man-hour existing for the whole face gluing of the battery core, and production efficiency is low；And improve described
Battery core because welding region it is limited existing for operating difficulties, battery core is positive and negative easily short-circuit the problem of；Also solve the connection simultaneously
Nickel strap can not realize standardization and existing different product need different moulds caused by product development cost it is high the problem of, and
Reduce fixture required during the connection nickel strap welding.
A kind of big voltage anti-explosion battery group, it includes a battery case, a battery core group and a lid, and the battery core group is included extremely
Few two battery cores, the battery core are fixed in the battery case spaced reciprocally, and the anti-explosion battery group also includes a hardness electricity
Road plate, a flexible circuit board and an external connector, the flexible circuit board its one end are connected with the hard circuit board, and its is another
One end is connected with the battery core group, and to be connected in series between the battery core, the hard circuit board and the flexible circuit board hold
It is placed in the anti-explosion battery box, the hard circuit board is located at the side edge close to the battery case, the external connection
Device is connected with the hard circuit board, and the lid also includes a circle side wall, and the external connector is corresponded in the side wall
Position offers a through hole, and the external connector extends outward through the through hole from the lid, the lid and institute
Battery case is stated to fit together.
Further, at least two battery core parallel side-by-sides in the battery core group are uniformly arranged, its battery core pole to homonymy, and
The battery core is mutually completely cut off positive pole with negative pole by the way of bag insulating paper.
Further, the battery case also includes a bottom, is provided with pair according to the quantity of the battery core on the bottom
The spacing position of bone answered, the battery core are located in the range of the corresponding spacing position of bone and are provided with insulating protection each other respectively.
Further, the battery core includes a front and a bottom surface, and the battery core is also negative including a positive pole welded bands and one
Pole welded bands, the positive pole welded bands and the negative pole welded bands are respectively positioned on the battery core front.
Further, equal with the battery core quantity and one-to-one positive pole cabling is provided with the flexible circuit board
And negative pole cabling, the positive pole welded bands are connected with the corresponding positive pole cabling, the negative pole welded bands and corresponding institute
State negative pole cabling to be connected, be connected as independent loop respectively, and by the flexible circuit board further with the rigid circuit
The series circuit between the battery core is realized in the connection of plate.
Further, the battery core group includes four battery cores, and the positive pole welded bands are respectively with the negative pole welded bands
One independent nickel strap, the battery core also include a solder side, and the negative pole welded bands are welded in the negative pole position on the solder side
Put, the positive pole welded bands are then welded in the positive pole position on the side relative with the solder side.
Further, the negative pole welded bands extend from its weld and welded around to battery core front, the positive pole
Band also extends from its weld and around to the front of the battery core and with the negative pole welded bands at a distance of not less than at 5mm.
Beneficial effect is caused by the utility model：
Big voltage anti-explosion battery group described in the utility model, its caused beneficial effect are：
First, the application by multiple battery cores by way of series connection to obtain big operating voltage, therefore single institute
It is very big without setting to state the voltage of battery core, described in the size requirement of cell voltage is flexibly matched with according to each product
The quantity of battery core and realize demand, while also achieve standardization and the versatility of the battery core, solve and fit in the prior art
Single big voltage battery core for a certain specialities easily produces stock problem；Secondly, the battery core of small voltage,
For big voltage battery core, in manufacturing cost, technology maturity, design selection flexibility ratio, technology stability, use
There is obvious advantage in terms of security；Again, after the welding nickel strap in the application welds with the battery core both positive and negative polarity, described in
It is straight in the same direction to compare prior art around to the mode being connected with the flexible circuit board after the battery core the same face for battery core different directions
Connect and be soldered on the hard circuit board, not only improve welding operating space so that welding operation facility, also improve simultaneously
Production operation security, reduce the probability of weldering and short circuit by mistake.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, the utility model is made into one below in conjunction with accompanying drawing
The explanation of step.
Fig. 1 is the big voltage anti-explosion battery group explosive view of prior art.
Fig. 2 is the big voltage anti-explosion battery group assembling figure of prior art.
Fig. 3 is the big voltage anti-explosion battery group Structure explosion diagram of the utility model.
Fig. 4 is the big voltage anti-explosion battery group battery core stereogram of the utility model.
Fig. 5 is another stereogram of the big voltage anti-explosion battery group battery core of the utility model.
Fig. 6 is the big voltage anti-explosion battery group members assembling figure of the utility model.
Fig. 7 is big voltage anti-explosion battery group members assembling figure " R " the place enlarged drawing of the utility model.
Fig. 8 is big voltage anti-explosion battery group members assembling figure " S " the place enlarged drawing of the utility model.
Fig. 9 is the big voltage anti-explosion battery group assembling figure of the utility model.
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and specific implementation
Example is further described to the big voltage anti-explosion battery group of the utility model.
Fig. 3 to Fig. 9 is refer to, is the big voltage anti-explosion battery group structural representation of the utility model.The anti-explosion battery group
Including a battery case 1, a battery core group 2, a lid 3, a hard circuit board 4, a flexible circuit board 5 and an external connector 6, institute
Stating battery core group 2 includes four battery cores 21, and the battery core 21 is fixed in the battery case 1 spaced reciprocally, the flexible circuit
Its one end of plate 5 is connected with the hard circuit board 4, and its other end is then connected with the battery core group 2, is between the battery core 21
It is connected in series, the hard circuit board 4 and the flexible circuit board 5 are placed in the battery case 1, and the battery case 1 is
One cuboid accommodation space, the battery core group 2, which is located at, to be leaned at the cuboid accommodation space its one end, and the hard circuit board
4 are located at by the cuboid accommodation space other end, i.e., described hard circuit board 4 is located at one close to the battery case 1
Side edge, the external connector 6 are connected with the hard circuit board 4, and the lid 3 also includes a circle side wall 31, described
The position that the external connector 6 is corresponded in side wall 31 offers a through hole 32, and the external connector 6 runs through the through hole 12
Extend outward from the lid 3, and then be connected with the electronic equipment mainboard that the anti-explosion battery group is powered, the lid
3 fit together with the battery case 1, so as to form a complete cuboid anti-explosion battery group, only described external connector 6 with
Powered electronic device is connected.
In view of the safety in utilization of product, i.e. product while does not influence production efficiency for the demand of explosion-proof performance again,
Therefore, insulation protection is set in interval region of the application between the adjacent battery core, and the insulating protection is in described
The explosion-proof special glue of filling in interval region between battery core 21.In the present embodiment, parallel side-by-side is equal between four battery cores 21
Even arrangement, and the pole of the battery core 21 so that its side is facing each other between the two neighboring battery core 21, and is prevented to homonymy
The gluing region of quick-fried glue is only limitted to the side smaller area between two battery cores 21, and in field of explosion, the gluing of battery
Necessary safety precautions, and for big voltage battery core, it is often necessary to be the whole face gluing in external face, therefore, this
Gluing technique in application does not have an impact production efficiency, reduces gluing region on the contrary, saves gluing time and wait
The time that antiexplosion adhesive is dried, improve production efficiency.
In the present embodiment, to make four battery cores 21 be located at not positioning in the battery case 1, further, the electricity
Pond box 1 also includes a bottom 13, on the bottom 13 according to corresponding to being provided with the quantity of the battery core 21 the spacing position of bone 14, institute
Battery core 21 is stated respectively in the range of the restriction of the corresponding spacing position of bone 14, while between adjacent two battery cores 21
It is spaced, and antiexplosion adhesive is then arranged in the interval region between the battery core 21 of adjacent two, and then formed effective
Insulating protection.
If in view of by the battery core and the flexible circuit board being directly welded to connect, then due to the battery core just
Negative pole is located at the side smaller area of the battery core, inconvenience can be operated by the way of directly welding, and the battery core is positive and negative
Extremely easy the problem of producing short circuit or blast, therefore, the application, by positive pole and bear the battery core by the way of bag insulating paper
Pole is mutually completely cut off.The battery core 21 includes a front 211 and a bottom surface 212, and the battery core 21 also includes a positive pole and welded
The negative pole welded bands 214 of band 213 and one, the positive pole welded bands 213 and the negative pole welded bands 214 are respectively positioned on the battery core front
On 211；The flexible circuit board 5 is then connected by the positive pole welded bands 213 and the negative pole welded bands 214 with the battery core 21
Connect.
Further, in order to more facilitate the convenient welding between the both positive and negative polarity of battery core 21 and the flexible circuit board 5,
The positive pole welded bands 213 and a negative pole welded bands 214 respectively independent nickel strap, as a positive pole nickel in the application
Band and a negative pole nickel strap, larger welding region scope thus is provided for welding, it is simple to operate so as to realize, and effectively
The problem of avoiding solder shorts.
Equal with the quantity of battery core 21 and one-to-one positive pole is additionally provided with herein described flexible circuit board 5 to walk
Line 51 and negative pole cabling 52, the positive pole welded bands 213 are connected with the corresponding positive pole cabling 51, the negative pole welded bands
214 are connected with the corresponding negative pole cabling 52, are connected as independent loop respectively, and enter one by the flexible circuit board 5
The series circuit between the battery core 21 is realized in the connection of step and the hard circuit board 4；That is, the battery core 21 by with
The connection of the flexible circuit board 5 is multiple independent loops, and the flexible circuit board 5 further with the hard circuit board 4
Multiple independent loops, are connected in series, so as to realize the battery core by connection by the inside cabling of the hard circuit board 4
Being connected in series between 21.
It should be noted that the present embodiment being connected in series using four battery cores 21, in the anti-explosion battery
In the course of work of group, due to the characteristics of being connected in series, the application is provided with pair by the inside cabling of the hard circuit board 4
In the battery core 21 each independent loop it is separately protected, also can be by described even if problem occurs for some described battery core 21
Protection circuit that hard circuit board 4 is set and the affiliated loop of the battery core 21 is automatically formed to the form of short circuit, so as to not influenceing
The normal work of whole circuit；That is, through the anti-explosion battery group power supply electronic product still can with normal use, and
Only the voltage of battery accordingly reduces a part.
In addition, being connected in series for battery core 21 described in the present embodiment, due to the bigger of battery pack can be reached
Voltage, thus during the use of electronic product, different type product can be met for the different requirements using voltage.
As it was previously stated, the both positive and negative polarity pair of the both positive and negative polarity cabling 51 of the flexible circuit board 5,52 its one ends and the battery core 21
After should connecting, its other end is then connected on the hard circuit board 4, and in realizing the battery core on the hard circuit board 4
21 are connected in series.
It should be noted that in the welding epitaxial process of the positive pole welded bands 213 and the negative pole welded bands 214, by
The processing of the isolation between positive-negative polarity has been carried out by the way of bag insulating paper for convenience of welding procedure in advance in the battery core 21,
Therefore also it is further providing convenience property of welding procedure.In the present embodiment, the battery core 21 includes a solder side 215, described
The negative pole position of battery core 21 is located on the solder side 215, while on the solder side 215, the negative pole position is only one
Less convex closure region, other parts are positive pole zone, therefore, it is necessary to will be around the convex closure region during bag insulating paper
Periphery wraps insulating paper, to prevent from welding by the negative pole convex closure position of the negative pole welded bands 214 and the battery core 21
When, the positive pole zone of the convex closure periphery may be touched and cause the short circuit of the battery core；For the positive pole welded bands 213
For the welding of the positive pole of the battery core 21, it is contemplated that the battery core 21 is removed outside less negative pole position, exist it is larger just
Polar region domain, based on this, present applicant proposes a kind of new thinking, by the welding position of the positive pole welded bands 213 be arranged at
Positive pole position on the relative side of the solder side, in other words, by positive pole welded bands 213 and described negative in the application
Pole welded bands 214 are respectively arranged at two opposite side with the welding position of the battery core 21, and in the side of its welding
The anti-short circuit processing of local bag insulating paper is employed on face, preferably realizes the positive pole welded bands 213 and negative pole weldering
The mentality of designing that the welding position of tape splicing 214 is staggered as far as possible so that the risk that both positive and negative polarity short circuit is produced during welding is greatly lowered.
Preferably, the negative pole welded bands 214 extend from its weld and around to the front of the battery core 21, the positive poles
Welded bands 213 also extend from its weld and around to the front of the battery core 21 and with the negative pole welded bands 214 at a distance of not small
At 5mm.Thus, for the positive pole welded bands 213 and the negative pole welded bands 214 further with the flexible circuit board 5 it
Between be welded to connect and provide separate both positive and negative polarity welding region, so as to greatly facilitate the positive pole welded bands 213 and
Welding operation between the negative pole welded bands 214 and the flexible circuit board 5.
In the application, the limited location position of bone 14 is set, therefore is not support mutually between the battery core 21 between multiple battery cores 21
Lean on, so as to effectively reduce existing short-circuit and blast hidden danger between the battery core 21.And in the present embodiment, then employ
Preferable explosion-proof program, filled with explosion-proof special glue to realize between the battery core in the interval region between the battery core 21
Mutually insulated, so as to further improve the safety in utilization of the anti-explosion battery group.
The skill of big voltage anti-explosion battery group described in the utility model is described in detail above in association with specific embodiment and accompanying drawing
Art scheme, it is clear that mentality of designing and application of the present utility model are not merely limited to four cited by embodiment
The connection combination of battery core, all two or more battery cores are connected in series mode by described herein, also or other changes
Mode is connected in series, as long as its object is to obtain the battery electric quantity of bigger voltage, to be matched with different electronic product needs,
It can be understood as being to be referred from change, extension and expansion that thinking of the present utility model is carried out, should all be attributed to the application
Extension, all protection categories for the application.
Claims (7)
1. a kind of big voltage anti-explosion battery group, it includes a battery case, a battery core group and a lid, and the battery core group is included at least
Two battery cores, it is characterised in that：The battery core is fixed in the battery case spaced reciprocally, and the anti-explosion battery group also includes
One hard circuit board, a flexible circuit board and an external connector, the flexible circuit board its one end and the hard circuit board
Connection, its other end are connected with the battery core group, to be connected in series between the battery core, the hard circuit board and the soft electricity
Road plate is placed in the anti-explosion battery box, and the hard circuit board is located at the side edge close to the battery case, described
External connector is connected with the hard circuit board, and the lid also includes a circle side wall, is corresponded in the side wall described outer
Connecting connector position offers a through hole, and the external connector extends outward through the through hole from the lid, described
Lid fits together with the battery case.
2. big voltage anti-explosion battery group as claimed in claim 1, it is characterised in that：At least two battery cores in the battery core group
Parallel side-by-side is uniformly arranged, and its battery core pole is to homonymy, and the battery core is carried out positive pole and negative pole by the way of bag insulating paper
Mutually isolation.
3. big voltage anti-explosion battery group as claimed in claim 2, it is characterised in that：The battery case also includes a bottom, institute
The spacing position of bone according to corresponding to being provided with the quantity of the battery core is stated on bottom, the battery core is respectively positioned at corresponding described spacing
It is provided with the range of the position of bone and each other insulating protection.
4. big voltage anti-explosion battery group as claimed in claim 3, it is characterised in that：The battery core includes a front and a bottom
Face, the battery core also include a positive pole welded bands and a negative pole welded bands, and the positive pole welded bands and the negative pole welded bands are equal
On the battery core front.
5. big voltage anti-explosion battery group as claimed in claim 4, it is characterised in that：It is provided with the flexible circuit board and institute
State equal battery core quantity and one-to-one positive pole cabling and negative pole cabling, the positive pole welded bands are walked with the corresponding positive pole
Line is connected, and the negative pole welded bands are connected with the corresponding negative pole cabling, are connected as independent loop respectively, and pass through institute
State flexible circuit board and series circuit between the battery core is further realized with the connection of the hard circuit board.
6. big voltage anti-explosion battery group as claimed in claim 5, it is characterised in that：The battery core group includes four battery cores, institute
It is respectively an independent nickel strap that positive pole welded bands, which are stated, with the negative pole welded bands, and the battery core also includes a solder side, described negative
Pole welded bands are welded in the negative pole position on the solder side, and the positive pole welded bands are then welded in relative with the solder side
Positive pole position on side.
7. big voltage anti-explosion battery group as claimed in claim 6, it is characterised in that：The negative pole welded bands are prolonged from its weld
Stretch and around to the battery core front, the positive pole welded bands also from its weld extend and around to the battery core front and with institute
Negative pole welded bands are stated at a distance of not less than at 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720509045.0U CN206834258U (en) | 2017-05-09 | 2017-05-09 | Big voltage anti-explosion battery group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720509045.0U CN206834258U (en) | 2017-05-09 | 2017-05-09 | Big voltage anti-explosion battery group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206834258U true CN206834258U (en) | 2018-01-02 |
Family
ID=60770553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720509045.0U Expired - Fee Related CN206834258U (en) | 2017-05-09 | 2017-05-09 | Big voltage anti-explosion battery group |
Country Status (1)
| Country | Link |
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| CN (1) | CN206834258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146862A (en) * | 2017-05-09 | 2017-09-08 | 深圳市宝尔爱迪科技有限公司 | The manufacture method of big voltage anti-explosion battery group and the battery pack |
-
2017
- 2017-05-09 CN CN201720509045.0U patent/CN206834258U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107146862A (en) * | 2017-05-09 | 2017-09-08 | 深圳市宝尔爱迪科技有限公司 | The manufacture method of big voltage anti-explosion battery group and the battery pack |
| CN107146862B (en) * | 2017-05-09 | 2020-05-22 | 深圳市宝尔爱迪科技有限公司 | Large-voltage explosion-proof battery pack and manufacturing method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180102 Termination date: 20190509 |
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| CF01 | Termination of patent right due to non-payment of annual fee |