CN202817138U - Waterproof and explosion-proof electric quantity display device for lithium ion battery - Google Patents
Waterproof and explosion-proof electric quantity display device for lithium ion battery Download PDFInfo
- Publication number
- CN202817138U CN202817138U CN2012203830975U CN201220383097U CN202817138U CN 202817138 U CN202817138 U CN 202817138U CN 2012203830975 U CN2012203830975 U CN 2012203830975U CN 201220383097 U CN201220383097 U CN 201220383097U CN 202817138 U CN202817138 U CN 202817138U
- Authority
- CN
- China
- Prior art keywords
- electric quantity
- display device
- quantity display
- explosion
- lithium ion
- 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.)
- Expired - Lifetime
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
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model relates to a waterproof and explosion-proof electric quantity display device for a lithium ion battery. The traditional electric quantity display device for the battery has no waterproof or explosion-proof function, thus the safety performance of the battery is reduced. The waterproof and explosion-proof electric quantity display device for the lithium ion battery comprises a battery cover and an electric quantity display mechanism; the electric quantity display mechanism is fixed at the bottom of the battery cover; the waterproof and explosion-proof electric quantity display device is characterized by also comprising a unidirectional safety valve and a valve rod; the electric quantity display mechanism comprises a circuit board, an LED (Light Emitting Diode) lamp and a switch button, wherein the LED lamp is arranged on the circuit board and is matched with the battery cover, and the switch button is connected with the circuit board; a button hole with a through hole structure is arranged in the valve rod and is fixed in the battery cover, and the button hole is sheathed on a switch button; the valve rod is covered by the unidirectional safety valve, thus a unidirectional channel is formed; and the top of the switch button is matched with the unidirectional safety valve. The waterproof and explosion-proof electric quantity display device is reasonable in structural design and has good safety performance and waterproofing and explosion-proofing functions.
Description
Technical field
The utility model relates to a kind of electric quantity display device, especially relates to a kind of electric quantity display device of the waterproof anti-explosion for lithium ion battery, is mainly used in the lithium-ions battery field.
Background technology
Battery all needs the state-of-charge of easy judgement battery in the process of using, storing and safeguard; usually can adopt the whole bag of tricks to show the state-of-charge of battery; for example the state-of-charge of battery can be indicated by the LED lamp; indicator light is lighted when pressing shift knob, can show the state-of-charge of battery.But general display packing can be destroyed the sealing characteristics of battery, perhaps adopts complicated sealing means.
Also there are at present some to be exclusively used in electric quantity display device in the battery, as open day be on 01 21st, 2009, publication number is in the Chinese patent of CN201184909, a kind of electric quantity display device is disclosed, this electric quantity display device comprises detecting unit, computing unit and display unit, detecting unit detects batteries charging or discharge condition, and detects magnitude of voltage and the current value of battery pack; Computing unit links to each other with detecting unit and according to battery set charge/discharge state, magnitude of voltage and current value that detecting unit detects, calculates the electric weight that battery pack increases or reduces, and accordingly the battery pack residual electric quantity is upgraded; Display unit links to each other with computing unit and the battery pack residual electric quantity is shown.This electric quantity display device does not have waterproof and explosion prevention function.And for example open day is on November 03rd, 2010, publication number is in the Chinese patent of CN201622332U, a kind of battery electric quantity display device is disclosed, this battery electric quantity display device mainly comprises: MCU control module, electric quantity acquisition module, display module, control output module, key-press module, and wherein: the MCU control module links to each other with control output module, electric quantity acquisition module, key-press module respectively; Display module links to each other with the control output module; Wherein said electric quantity acquisition module is realized the collection to battery electric quantity; Key-press module realizes opening the electric quantity acquisition function; The MCU control module realizes the processing of push button signalling and information about power, by control output module and display module, works in coordination and finishes the electric weight display action.This electric quantity display device does not have waterproof and explosion prevention function.
But, battery need in time be discharged the gas of inside in charging, thermal expansion even when going out internal fault, prevent that the situation of blast from appearring in battery, and the outside materials such as water are not allow the inside battery that enters, existing electric quantity display device for battery does not all have waterproof and explosion prevention function, thereby has reduced the security performance of battery.
The utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided, and is conducive to promote the electric quantity display device of the waterproof anti-explosion that is used for lithium ion battery of the security performance of battery.
The technical scheme in the invention for solving the above technical problem is: the electric quantity display device that should be used for the waterproof anti-explosion of lithium ion battery comprises battery cover and electric weight indication mechanism, described electric weight indication mechanism is fixed on the bottom of battery cover, its design feature is: also comprise one-way relief valves and valve rod, described electric weight indication mechanism comprises circuit board, LED lamp and shift knob, described LED lamp is installed on the circuit board, this LED lamp and battery cover match, and described shift knob is connected with circuit board; Be provided with the button hole that shape and size all are complementary with shift knob in the described valve rod, this button hole is through-hole structure, and described valve rod is fixed in the battery cover, and described button hole is sleeved on the shift knob; Described one-way relief valves covers on the valve rod, forms a unidirectional passage between this one-way relief valves and the valve rod, and top and the one-way relief valves of described shift knob match.Thus so that of the present utility model simple in structure, reasonable in design, dependable performance, under the effect of one-way relief valves, can either prevent effectively that outside gas and liquid from entering inside battery, realize the function of waterproof, the gas that can guarantee inside battery is again discharged by one-way relief valves, reach explosion-proof function, can also come the push switch button by one-way relief valves, with organically combination between shift knob and the one-way relief valves, so that the structural design of whole battery is more reasonable, layout is science more.The utility model can reach the function of waterproof anti-explosion, is conducive to promote the security performance of lithium ion battery.
As preferably, electric quantity display device described in the utility model also comprises light-guiding pillar, is provided with the light-conductive hole that shape and size all are complementary with light-guiding pillar in the described battery cover, and this light-conductive hole is through-hole structure, described light-guiding pillar is installed in the light-conductive hole, and this light-guiding pillar matches with the LED lamp.Thus so that structural design of the present utility model is more reasonable, by light-guiding pillar the light that the LED lamp produces is led outside the battery cover, show what purpose of electric weight to reach.
As preferably, electric quantity display device described in the utility model also comprises keeper, and described keeper is fixed on the battery cover, this keeper be positioned at one-way relief valves directly over.Thus so that structure of the present utility model is simpler, it is more reasonable to design, and by keeper one-way relief valves is reached the function of location, prevents that one-way relief valves from ejecting from valve rod, especially in the time of can preventing that the air-flow of inside battery is larger, one-way relief valves is ejected from valve rod.
As preferably, top and the one-way relief valves of shift knob described in the utility model contact.Thus so that the utility model by one-way relief valves can be more flexibly, freely control switch button.
As preferably, electric weight indication mechanism described in the utility model is screwed in the bottom of battery cover.
As preferably, LED lamp described in the utility model be positioned at light-guiding pillar under.Thus so that the light guide effect of light-guiding pillar of the present utility model is better.
As preferably, light-guiding pillar described in the utility model is transparent material.
As preferably, keeper described in the utility model is elastic material.
The utility model compared with prior art, have the following advantages and effect: simple in structure, reasonable in design, realize the function of lithium ion battery waterproof anti-explosion by one-way relief valves, can design according to actual needs the force value that one-way relief valves is opened, waterproof anti-explosion mechanism and the electric weight indication mechanism of one-way relief valves are integrated, and simple for structure, performance safety is reliable.
One-way relief valves in the utility model covers on the valve rod, form a unidirectional passage, the materials such as the water of lithium ion battery outside, gas all can not enter the inside of lithium ion battery, if there are the fluids such as gas in the inside of lithium ion battery, can efflux smoothly by one-way relief valves, thereby the malignant event such as effectively prevent that lithium ion battery from blasting has promoted the security performance of lithium ion battery greatly.
One-way relief valves and shift knob in the utility model organically combine, when external force is pressed one-way relief valves downwards, external force can be delivered on the shift knob by one-way relief valves, thereby realize opening and closing the function of shift knob, namely just can reach the purpose of push switch button by pressing one-way relief valves, so that one-way relief valves had both played the function of waterproof anti-explosion to lithium ion battery, can reach again the function of control switch button.
There is the gap between the top of the utility model valve rod and the one-way relief valves, so that one-way relief valves has good elasticity, button hole is sleeved on the shift knob, can contact between the top of shift knob and the one-way relief valves, also can there be certain gap, one-way relief valves can be pushed down one-way relief valves by the keeper of top, by keeper position corresponding to one-way relief valves top, the strength of pressing reaches on the shift knob, the smoothly opening and closing of control switch button, thereby the on and off of realization control LED lamp.LED lamp and light-guiding pillar match, and when the LED lamp was luminous, the light that the LED lamp produces reached the top of battery cover by light-guiding pillar, show what function of electric weight thereby reach.
Description of drawings
Fig. 1 is the structural representation of electric quantity display device that is used for the waterproof anti-explosion of lithium ion battery among the utility model embodiment.
Fig. 2 is the sectional structure schematic diagram of electric quantity display device that is used for the waterproof anti-explosion of lithium ion battery among the utility model embodiment.
Fig. 3 is the Split type structure schematic diagram of electric quantity display device that is used for the waterproof anti-explosion of lithium ion battery among the utility model embodiment.
Fig. 4 is the structure for amplifying schematic diagram that removes among Fig. 2 behind battery cover and the valve rod.
Fig. 5 is the structural representation after battery cover and valve rod amplify among Fig. 2.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and by embodiment, and following examples are to explanation of the present utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1 to Fig. 5, the electric quantity display device that is used for the waterproof anti-explosion of lithium ion battery in the present embodiment comprises battery cover 1, electric weight indication mechanism 2, one-way relief valves 3, valve rod 4, light-guiding pillar 5 and keeper 6, wherein, light-guiding pillar 5 adopts the transparent material manufacturing to form.
Electric weight indication mechanism 2 in the present embodiment is screwed in the bottom of battery cover 1, and namely electric weight indication mechanism 2 is fixed on the bottom of battery cover 1.
Electric weight indication mechanism 2 in the present embodiment comprises circuit board 21, LED lamp 22 and shift knob 23, and wherein, LED lamp 22 and shift knob 23 are installed on the circuit board 21, can reach the function that control LED lamp 22 is lighted and extinguished by control switch button 23.
Be provided with the light-conductive hole 11 that shape and size all are complementary with light-guiding pillar 5 in the battery cover 1 of present embodiment, this light-conductive hole 11 is through-hole structure.Light-guiding pillar 5 in the present embodiment is installed in the light-conductive hole 11, and tight fit between this light-guiding pillar 5 and the light-conductive hole 11 can effectively reach the function of waterproof.Light-guiding pillar 5 in the utility model also can be fixed on transparent sealant sealing in the light-conductive hole 11; Light-guiding pillar 5 in the utility model even can be by formed after the transparent sealing glue drying, as in light-conductive hole 11, filling with first transparent sealing glue, after transparent sealing glue done, with regard to self-assembling formation light-guiding pillar 5.LED lamp 22 in the present embodiment be positioned at light-guiding pillar 5 under, namely light-guiding pillar 5 matches with LED lamp 22, when LED lamp 22 is lighted, the light of LED lamp 22 can be delivered on the battery cover 1 by light-guiding pillar 5.Certainly, battery cover 1 in the utility model also can use the transparent material manufacturing to form, LED lamp 22 and battery cover 1 match, the light that LED lamp 22 produces is transmitted to the top of battery cover 1 by transparent battery cover 1, show what purpose of electric weight to reach, be that light-guiding pillar 5 in the utility model and the light-conductive hole 11 in the battery cover 1 are omissible, perhaps this light-guiding pillar 5 can be integrated in the battery cover 1.
Be provided with the button hole that shape and size all are complementary with shift knob 23 in the valve rod 4 of present embodiment, this button hole is through-hole structure.Valve rod 4 in the present embodiment is fixed in the battery cover 1, and button hole is sleeved on the shift knob 23, and namely shift knob 23 is sleeved in the button hole.
One-way relief valves 3 in the present embodiment covers on the valve rod 4, thereby between one-way relief valves 3 and valve rod 4, form a unidirectional passage, guarantee that the material such as water, gas of lithium ion battery outside all can not enter the inside of lithium ion battery, so that lithium ion battery reaches the function of waterproof, and inside lithium ion cell is during if any fluids such as gases, the fluids such as this gas can efflux smoothly by one-way relief valves 3, and the generation of the malignant events such as prevent exploding reaches explosion-proof function.Present embodiment can arrange the force value that one-way relief valves 3 is opened according to actual needs, thereby is conducive to enlarge applicable surface.One-way relief valves 3 in the utility model can be stuck in by the structure of shade on the valve rod 4, be provided with the shade structure such as the inwall in one-way relief valves 3, outer wall at valve rod 4 is provided with boss structure, when one-way relief valves 3 covers on the valve rod 4, the shade structure of one-way relief valves 3 can be stuck on the boss structure of valve rod 4, when inside battery generation gas need to efflux, can play position-limiting action to the distance that one-way relief valves 3 rises, prevent the pressure of inside battery when larger with one-way relief valves 3 from the situation that valve rod 4 ejects, can prevent that namely one-way relief valves 3 breaks away from the situation of valve rods 4.
There is the gap between the top of valve rod 4 and the one-way relief valves 3 in the present embodiment, so that one-way relief valves 3 can keep good elasticity, prevents that effectively stuck phenomenon from appearring in one-way relief valves 3, promoted the overall performance of whole device.
The top of shift knob 23 and one-way relief valves 3 contact in the present embodiment, match between the top of shift knob 23 and the one-way relief valves 3, when having downward external force to be applied on the one-way relief valves 3, shift knob 23 just can be pressed, thereby opens LED lamp 22; When not having downward external force to be applied on the one-way relief valves 3, shift knob 23 can not be pressed.Certainly, the size that is applied to the external force on the one-way relief valves 3 that this place is said will be enough to press shift knob 23, when pressing one-way relief valves 3, can reach the function of the opening and closing of control switch button 23, thereby realize the function of the on and off of control LED lamp 22, this is common practise to one skilled in the art.Certainly, also can there be certain gap between the top of shift knob 23 and the one-way relief valves 3 in the utility model.
Keeper 6 in the present embodiment is fixed on the battery cover 1, this keeper 6 be positioned at one-way relief valves 3 and light-guiding pillar 5 directly over, by keeper 6 one-way relief valves 3 is pushed down, prevent the pressure of inside battery ejects one-way relief valves 3 when larger from valve rod 4 situation, can play positioning action to one-way relief valves 3, so that one-way relief valves 3 can more effectively move up and down in certain area, namely realized function that the gas of battery inwall is discharged, reached again and prevent that extraneous gas and liquid from entering the function of inside battery.Can be provided with a switch press district on the keeper 6 in the present embodiment, when when this switch press district, the strength transmission of pressing is to shift knob 23 places, thereby control switch button 23 is smoothly realized the on and off of LED lamp 22.
The lithium ion battery that electric quantity display device in the present embodiment is installed can in time be discharged to outside batteries with internal gas when charging, expanding even internal fault occur, prevent that lithium ion battery from blasting, and, the materials such as water of lithium ion battery outside are not allow to enter inside lithium ion cell, so that lithium ion battery reaches the function of waterproof.The utility model integrates waterproof anti-explosion mechanism and the electric weight indication mechanism of one-way relief valves 3, and is simple for structure, dependable performance.
Keeper 6 in the present embodiment adopts the elastic material manufacturing to form, and can be pressed into the top of one-way relief valves 3 by pressing keeper 6 downwards, thereby reach the purpose of control switch button 23.The effect of keeper 6 is mainly by 2 points in the present embodiment: 1, one-way relief valves 3 is pushed down 2, can be pressed into shift knob 23.What the keeper 6 in the present embodiment adopted is the label of a PVC, and this indicates the graph text informations such as charge value, shift knob above label, is convenient to user's operation.Certainly, keeper 6 in the utility model also can be made of other material, this keeper 6 need to have certain elasticity, and the part that is positioned at least directly over the one-way relief valves 3 need to have certain elasticity, to reach the purpose that realizes push switch button 23.
In addition, need to prove, the specific embodiment described in this specification, the shape of its parts and components, institute's title of being named etc. can be different, and the above content described in this specification only is to the explanation of the utility model structure example.Allly conceive equivalence variation or the simple change that described structure, feature and principle are done according to the utility model patent, be included in the protection range of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present utility model or surmount this scope as defined in the claims, all should belong to protection range of the present utility model.
Claims (8)
1. electric quantity display device that is used for the waterproof anti-explosion of lithium ion battery, comprise battery cover and electric weight indication mechanism, described electric weight indication mechanism is fixed on the bottom of battery cover, it is characterized in that: also comprise one-way relief valves and valve rod, described electric weight indication mechanism comprises circuit board, LED lamp and shift knob, described LED lamp is installed on the circuit board, and this LED lamp and battery cover match, and described shift knob is connected with circuit board; Be provided with the button hole that shape and size all are complementary with shift knob in the described valve rod, this button hole is through-hole structure, and described valve rod is fixed in the battery cover, and described button hole is sleeved on the shift knob; Described one-way relief valves covers on the valve rod, forms a unidirectional passage between this one-way relief valves and the valve rod, and top and the one-way relief valves of described shift knob match.
2. the electric quantity display device of the waterproof anti-explosion for lithium ion battery according to claim 1, it is characterized in that: described electric quantity display device also comprises light-guiding pillar, be provided with the light-conductive hole that shape and size all are complementary with light-guiding pillar in the described battery cover, this light-conductive hole is through-hole structure, described light-guiding pillar is installed in the light-conductive hole, and this light-guiding pillar matches with the LED lamp.
3. the electric quantity display device of the waterproof anti-explosion for lithium ion battery according to claim 1, it is characterized in that: described electric quantity display device also comprises keeper, described keeper is fixed on the battery cover, this keeper be positioned at one-way relief valves directly over.
4. according to claim 1 and 2 or the electric quantity display device of 3 described waterproof anti-explosions for lithium ion battery, it is characterized in that: top and the one-way relief valves of described shift knob contact.
5. according to claim 1 and 2 or the electric quantity display device of 3 described waterproof anti-explosions for lithium ion battery, it is characterized in that: described electric weight indication mechanism is screwed in the bottom of battery cover.
6. the electric quantity display device of the waterproof anti-explosion for lithium ion battery according to claim 2 is characterized in that: described LED lamp be positioned at light-guiding pillar under.
7. the electric quantity display device of the waterproof anti-explosion for lithium ion battery according to claim 2, it is characterized in that: described light-guiding pillar is transparent material.
8. the electric quantity display device of the waterproof anti-explosion for lithium ion battery according to claim 3, it is characterized in that: described keeper is elastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203830975U CN202817138U (en) | 2012-08-03 | 2012-08-03 | Waterproof and explosion-proof electric quantity display device for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203830975U CN202817138U (en) | 2012-08-03 | 2012-08-03 | Waterproof and explosion-proof electric quantity display device for lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817138U true CN202817138U (en) | 2013-03-20 |
Family
ID=47875963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203830975U Expired - Lifetime CN202817138U (en) | 2012-08-03 | 2012-08-03 | Waterproof and explosion-proof electric quantity display device for lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817138U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768344A (en) * | 2012-08-03 | 2012-11-07 | 杭州万马高能量电池有限公司 | Waterproof and anti-explosion electric quantity display device for lithium ion battery |
| CN107195984A (en) * | 2017-06-13 | 2017-09-22 | 福建华祥电源科技有限公司 | A kind of intelligence can adjust the battery of energy storage |
| WO2019184551A1 (en) * | 2018-03-29 | 2019-10-03 | 上海喜摩电动科技有限公司 | Frame assembly structure for electric vehicle |
| CN114583358A (en) * | 2020-12-01 | 2022-06-03 | 江西安驰新能源科技有限公司 | Household energy storage battery system |
-
2012
- 2012-08-03 CN CN2012203830975U patent/CN202817138U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768344A (en) * | 2012-08-03 | 2012-11-07 | 杭州万马高能量电池有限公司 | Waterproof and anti-explosion electric quantity display device for lithium ion battery |
| CN102768344B (en) * | 2012-08-03 | 2015-06-17 | 杭州天丰电源股份有限公司 | Waterproof and anti-explosion electric quantity display device for lithium ion battery |
| CN107195984A (en) * | 2017-06-13 | 2017-09-22 | 福建华祥电源科技有限公司 | A kind of intelligence can adjust the battery of energy storage |
| WO2019184551A1 (en) * | 2018-03-29 | 2019-10-03 | 上海喜摩电动科技有限公司 | Frame assembly structure for electric vehicle |
| CN114583358A (en) * | 2020-12-01 | 2022-06-03 | 江西安驰新能源科技有限公司 | Household energy storage battery system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202817138U (en) | Waterproof and explosion-proof electric quantity display device for lithium ion battery | |
| CN102768344B (en) | Waterproof and anti-explosion electric quantity display device for lithium ion battery | |
| CN102853268B (en) | Electric torch and tail cover structure thereof | |
| CN204580748U (en) | Multifunction cup | |
| CN203040920U (en) | Location key chain | |
| CN207368700U (en) | A kind of dual-port cradle | |
| CN205191295U (en) | Multifunctional electric torch | |
| CN202118535U (en) | Torch light with electric quantity display function | |
| CN204213968U (en) | A kind of electric-arc lighter | |
| CN207146036U (en) | A kind of Portable LED lamp | |
| CN207716459U (en) | A kind of arc ignition rifle | |
| CN201745462U (en) | Chargeable resistance cigarette lighter | |
| CN204012853U (en) | A kind of boxlike expansion charging device being applied on flying toy | |
| CN206268856U (en) | An a kind of lamp | |
| CN205535190U (en) | Multi -functional lantern of intelligence | |
| CN206880220U (en) | A kind of self-luminous Novel zipper | |
| CN203647162U (en) | Thermos sleeve | |
| CN210532436U (en) | Projection lighter that charges | |
| CN203180004U (en) | Lithium battery for electromobile | |
| CN206929729U (en) | Push button switch protecting hood for bulb lamp | |
| CN211952830U (en) | Multifunctional lighter | |
| CN207179726U (en) | Touch electric heating piece cigar lighter | |
| CN202691621U (en) | Portable multifunctional flashlight | |
| CN209344830U (en) | A kind of electronic cigarette charging box with light guide structure | |
| CN206107170U (en) | Automobile starting power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU TIANFENG POWER CO., LTD. Free format text: FORMER NAME: HANGZHOU WANMA HIGH-ENERGY BATTERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 310022 Hangzhou, Zhejiang, Gongshu District Pro halfway on the road No. 118 Patentee after: HANGZHOU SKYRICH POWER Co.,Ltd. Address before: 310022 Hangzhou, Zhejiang, Gongshu District Pro halfway on the road No. 118 Patentee before: HANGZHOU WANMA HIGH-ENERGY BATTERY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |