CN110379668A - A kind of more plate high thermal conductivity type high-pressure vacuum breakers - Google Patents
A kind of more plate high thermal conductivity type high-pressure vacuum breakers Download PDFInfo
- Publication number
- CN110379668A CN110379668A CN201910553522.7A CN201910553522A CN110379668A CN 110379668 A CN110379668 A CN 110379668A CN 201910553522 A CN201910553522 A CN 201910553522A CN 110379668 A CN110379668 A CN 110379668A
- Authority
- CN
- China
- Prior art keywords
- plate
- thermally conductive
- cover board
- conductivity type
- thermal conductivity
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
- H01H2009/526—Cooling of switch parts of the high voltage switches
Landscapes
- Breakers (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention discloses a kind of more plate high thermal conductivity type high-pressure vacuum breakers, its structure includes: thermally conductive plate body, pedestal, transfer box, breaker body, binding post, it is connected cover board, binding post be installed on linking cover board above and be connected cover board snapping, when using equipment, pass through the more plate cooling mechanisms being equipped with, it enables the invention to realize the influence for avoiding being highly susceptible to high temperature due to high-voltage circuitbreaker, existing equipment is usually the static side installation radiator in vacuum interrupter, it needs individually to be equipped with power-supply system, installation is more troublesome and heat dissipation effect is limited, and high-voltage circuitbreaker heater element is numerous, existing equipment more targetedly can not carry out effective for high-voltage circuitbreaker, heat dissipation, certain influence can be led to the problem of to the normal work of equipment, it enables a device to targetedly lead internal heat Heat, reduce redundant equipment installation trouble more has specific aim simultaneously, radiates for breaker body more complete.
Description
Technical field
The present invention is a kind of more plate high thermal conductivity type high-pressure vacuum breakers, belongs to field of circuit breakers.
Background technique
High-pressure vacuum breaker is widely applied a kind of high-tension switch gear in power distribution network, because its frequently cut-off when energy
Enough reliable arc extinguishings and safety with higher, in industrial and mining enterprises, power plant, substation as the protection of electrical equipment and
Control is used, especially suitable for requiring the field of employment of non-oil ultra high vacuum system, few maintenance and frequent operation.
The prior art has following deficiency: since high-voltage circuitbreaker is highly susceptible to the influence of high temperature, existing equipment is usually
Radiator to be installed in the static side of vacuum interrupter, needs individually to be equipped with power-supply system, installation is more troublesome and heat dissipation effect is limited,
And high-voltage circuitbreaker heater element is numerous, existing equipment more targetedly can not carry out effective for high-voltage circuitbreaker,
Heat dissipation, can generate certain influence to the normal work of equipment.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of more plate high thermal conductivity type high pressure vacuum open circuits
Device, to solve the existing influence for being highly susceptible to high temperature due to high-voltage circuitbreaker, existing equipment is usually in vacuum interrupter
Static side installs radiator, needs individually to be equipped with power-supply system, and installation is more troublesome and heat dissipation effect is limited, and high-voltage circuitbreaker is sent out
Thermal element is numerous, and existing equipment more targetedly can not carry out effective for high-voltage circuitbreaker, radiates, just to equipment
Often work can lead to the problem of certain influence.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of more plate high thermal conductivity types
High-pressure vacuum breaker, structure include: thermally conductive plate body, pedestal, transfer box, breaker body, binding post, linking lid
Plate, the binding post be installed on above linking cover board and be connected cover board snapping, the linking cover board lower section is equipped with breaker master
Body, the breaker body be connected cover board interlocking, the side of the breaker body is equipped with thermally conductive plate body, described thermally conductive
Plate body and breaker body snapping, the breaker body lower section are equipped with transfer box and are electrically connected with transfer box, described turn
Connect the case side of being mounted on the base and with pedestal snapping, the thermally conductive plate body includes thermally conductive slot device, fixed frame, buck plate,
The thermally conductive slot device is uniformly embedded on the inside of buck plate, and the buck plate side is locked by fixed frame and breaker body
It connects.
Preferably, the thermally conductive slot device includes temperature linkage device, leads thermal module, shaft frame, card slot, the thermally conductive mould
Group side is equipped with shaft frame, and the shaft frame is flexibly connected with thermal module is led, and the shaft is set up on the inside of card slot and and card slot
Snapping, described lead are equipped with temperature linkage device, the temperature linkage device and shaft frame snapping on the inside of thermal module.
Preferably, the temperature linkage device includes temperature sensing board, embedded groove, interior bar, jacket, compression chamber, the interior bar peace
Loaded on the inside of jacket and with jacket clearance fit, the interior bar inner opposite end is equipped with temperature sensing board, the temperature sensing board and interior bar snapping,
The temperature sensing board is installed on the inside of embedded groove and is flexibly connected with embedded groove, and the embedded groove is set on the inside of compression chamber.
Preferably, the thermal module of leading includes bearing hole, sealing ring, main block plate, links and buckle, the main block plate is installed on
On the inside of sealing ring and with sealing ring snapping, the sealing ring side is equipped with bearing hole, and the main block plate inside lower end is equipped with linkage
Button, the linkage button and main block plate snapping.
Preferably, the temperature sensing board is made of Rare Metals Materials, coefficient of thermal expansion and contraction with higher can be effective
It perceives the temperature on the inside of breaker body and makes feedback in time.
Preferably, the linkage button is interconnecting relation with interior bar, the deformation of the temperature sensing board can drive linkage button indirectly
Main block plate is jacked up to the right.
Preferably, the temperature sensing board upper and lower ends are equipped with pulley block structure corresponding with embedded groove, its can be cooperated right
In the promotion of interior bar.
Preferably, user can be by the way that the binding post being equipped with to be connected in corresponding high-tension line, in addition transfer box connects
The output line of one end provides protection and control by the mutual cooperation of breaker body and binding post, and then for connection line
Function, pedestal is used for the effect installing and insulate, when breaker body can generate higher temperature during the work time, when it
When reaching certain temperature, temperature sensing board can perceive the temperature of corresponding region, while temperature sensing board can be embedded in when temperature is high
Interior bar is compressed along the inside deformation of compression chamber under the cooperation of slot, so that interior bar is displaced along U-shaped set, and in the phase of linkage button
Mutually cooperation is lower squeezes main block plate, due to the mate-assist between shaft frame and card slot, bearing hole, and then can make corresponding buck plate
The main block plate in region is open, and then carries out the thermally conductive function of part heat dissipation, effectively can carry out heat dissipation guarantor for breaker body
Shield.
Beneficial effect
Compared with prior art, the beneficial effects of the present invention are: when reaching certain temperature inside high-voltage circuitbreaker, lead to
It crosses distinctive temperature sensing board mechanism to be matched, and then in the case where the thermally conductive slot device that assembly plate surface is uniformly embedded into cooperates, makes
Winner's block plate is opened, targetedly thermally conductive for internal heat progress, reduces redundant equipment installation trouble simultaneously more
Add with specific aim, radiates for breaker body more complete.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of surface structure schematic diagram of more plate high thermal conductivity type high-pressure vacuum breakers of the present invention.
Fig. 2 is the normal cross-section structural schematic diagram of the thermally conductive plate body of the present invention.
Fig. 3 is the side the schematic diagram of the section structure of the thermally conductive slot device of the present invention.
Fig. 4 is the side the schematic diagram of the section structure of temperature linkage device of the present invention.
Fig. 5 is the structural schematic diagram that the present invention leads thermal module.
In figure: thermally conductive plate body -1, pedestal -2, transfer box -3, breaker body -4, binding post -5, linking cover board -6,
Thermally conductive slot device-a, fixed frame-b, buck plate-c, temperature linkage device-a1, thermal module-a2, shaft frame-a3, card slot-a4, sense are led
Warm plate-a11, embedded groove-a12, interior bar-a13, U-shaped set-a14, compression chamber-a15, bearing hole-a21, sealing ring-a22, main gear
- a24 is buckled in disk-a23, linkage.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Please refer to Fig. 1-Fig. 5, the present invention provides a kind of more plate high thermal conductivity type high-pressure vacuum breaker technical solutions: it is tied
Structure includes: a kind of more plate high thermal conductivity type high-pressure vacuum breakers, and structure includes: thermally conductive plate body 1, pedestal 2, transfer box
3, breaker body 4, binding post 5, linking cover board 6, the binding post 5 are installed on 6 top of linking cover board and buckle with cover board 6 is connected
Connect, below the linking cover board 6 be equipped with breaker body 4, the breaker body 4 be connected 6 interlocking of cover board, the breaker
The side of main body 4 is equipped with thermally conductive plate body 1, the thermally conductive plate body 1 and 4 snapping of breaker body, the breaker master
Be equipped with and transfer box 3 and be electrically connected with transfer box 3 below body 4, the transfer box 3 be installed on above pedestal 2 and with 2 snapping of pedestal,
The thermally conductive plate body 1 includes thermally conductive slot device a, fixed frame b, buck plate c, the thermally conductive slot device a be uniformly embedded into
On the inside of buck plate c, by fixed frame b and 4 interlocking of breaker body, the thermally conductive slot device a includes temperature for the side the buck plate c
Degree clutch a1, thermal module a2, shaft frame a3, card slot a4 are led, the side thermal module a2 of leading is equipped with shaft frame a3, the shaft
Frame a3 is flexibly connected with thermal module a2 is led, the shaft frame a3 be set to card slot a4 on the inside of and with card slot a4 snapping, the thermally conductive mould
Temperature linkage device a1, the temperature linkage device a1 and shaft frame a3 snapping are equipped on the inside of group a2.
The temperature linkage device a1 includes temperature sensing board a11, embedded groove a12, interior bar a13, U-shaped set a14, compression chamber a15, institute
State interior bar a13 be installed on the inside of U-shaped set a14 and with U-shaped set a14 clearance fit, the interior bar a13 inner opposite end is equipped with temperature sensing board
A11, the temperature sensing board a11 and interior bar a13 snapping, the temperature sensing board a11 be installed on the inside of embedded groove a12 and with embedded groove a12
It is flexibly connected, the embedded groove a12 is set on the inside of compression chamber a15, and the temperature linkage device a1 passes through temperature sensing board a11 perception open circuit
Temperature inside device main body 4, and make corresponding deformation feedback.
The thermal module a2 that leads includes bearing hole a21, sealing ring a22, main block plate a23, links and buckle a24, the main block plate
A23 be installed on the inside of sealing ring a22 and with sealing ring a22 snapping, the side the sealing ring a22 is equipped with bearing hole a21, the master
Block plate a23 inside lower end is equipped with linkage button a24, and the linkage button a24 and main block plate a23 snapping, the thermal module a2 that leads pass through
Bearing hole a21 and main block plate a23 cooperates, and then makes it have activity.
The method is mainly characterized in that: user can be transferred by the way that the binding post being equipped with 5 to be connected in corresponding high-tension line
Case 3 connects other end of output line, mentions by the mutual cooperation of breaker body 4 and binding post 5, and then for connection line
For the function of protecting and control, pedestal 2 is used for the effect installed and insulated, when breaker body 4 can generate during the work time
Higher temperature, when it reaches certain temperature, temperature sensing board a11 can perceive the temperature of corresponding region, while temperature is high
When temperature sensing board a11 can compress interior bar a13 along the inside deformation of compression chamber a15 under the cooperation of embedded groove a12 so that interior
Bar a13 is displaced along U-shaped set a14, and squeezes main block plate a23 under the mutual cooperation of linkage button a24, due to shaft frame a3 and card
Mate-assist between slot a4, bearing hole a21, and then the main block plate a23 in the corresponding region buck plate c can be made to be open, in turn
The thermally conductive function of part heat dissipation is carried out, heat radiation protection effectively can be carried out for breaker body 4.
The present invention is combined with each other by above-mentioned component, is made equipment in use, passing through the more plate cooling mechanisms being equipped with, is made
The present invention can be realized the influence for avoiding that high temperature is highly susceptible to due to high-voltage circuitbreaker, and existing equipment is usually in vacuum extinction
The static side of room installs radiator, needs individually to be equipped with power-supply system, installation is more troublesome and heat dissipation effect is limited, and high pressure is breaking
Device heater element is numerous, and existing equipment more targetedly can not carry out effective, heat dissipation, to equipment for high-voltage circuitbreaker
Normal work can lead to the problem of certain influence, enable a device to targetedly carry out internal heat it is thermally conductive,
Reduce redundant equipment installation trouble more has specific aim simultaneously, radiates for breaker body more complete.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of more plate high thermal conductivity type high-pressure vacuum breakers, structure includes: thermally conductive plate body (1), pedestal (2), turns
Case (3), breaker body (4), binding post (5), linking cover board (6) are connect, the binding post (5) is installed in linking cover board (6)
Side and be connected cover board (6) snapping, linking cover board (6) lower section is equipped with breaker body (4), it is characterised in that:
The side of the breaker body (4) is equipped with thermally conductive plate body (1), the thermally conductive plate body (1) and breaker master
Body (4) snapping, breaker body (4) lower section are equipped with transfer box (3), and the transfer box (3) is installed on above pedestal (2).
2. a kind of more plate high thermal conductivity type high-pressure vacuum breakers according to claim 1, it is characterised in that: described thermally conductive
Plate body (1) includes thermally conductive slot device (a), fixed frame (b), buck plate (c), the thermally conductive slot device (a) be uniformly embedded into
On the inside of buck plate (c), buck plate (c) side passes through fixed frame (b) and breaker body (4) interlocking, the thermal trough
Device (a) includes temperature linkage device (a1), leads thermal module (a2), shaft frame (a3), card slot (a4), described to lead the side thermal module (a2)
Side is equipped with shaft frame (a3), and the shaft frame (a3) is flexibly connected with thermal module (a2) is led, and the shaft frame (a3) is set to card slot
(a4) inside, described lead are equipped with temperature linkage device (a1) on the inside of thermal module (a2).
3. a kind of more plate high thermal conductivity type high-pressure vacuum breakers according to claim 2, it is characterised in that: the temperature
Clutch (a1) includes temperature sensing board (a11), embedded groove (a12), interior bar (a13), U-shaped set (a14), compression chamber (a15), it is described in
Bar (a13) be installed on the inside of U-shaped set (a14) and with U-shaped set (a14) clearance fit, interior bar (a13) inner opposite end is equipped with sense
Warm plate (a11), the temperature sensing board (a11) and interior bar (a13) snapping, the temperature sensing board (a11) are installed in embedded groove (a12)
Side, the embedded groove (a12) are set on the inside of compression chamber (a15).
4. a kind of more plate high thermal conductivity type high-pressure vacuum breakers according to claim 2, it is characterised in that: described thermally conductive
Mould group (a2) includes bearing hole (a21), sealing ring (a22), main block plate (a23), links and buckle (a24), main block plate (a23) peace
Loaded on the inside of sealing ring (a22), the sealing ring side (a22) is equipped with bearing hole (a21), under main block plate (a23) inside
End is equipped with linkage button (a24).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553522.7A CN110379668B (en) | 2019-06-25 | 2019-06-25 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
| CN202011569736.2A CN112614736A (en) | 2019-06-25 | 2019-06-25 | High-voltage vacuum circuit breaker and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553522.7A CN110379668B (en) | 2019-06-25 | 2019-06-25 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569736.2A Division CN112614736A (en) | 2019-06-25 | 2019-06-25 | High-voltage vacuum circuit breaker and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110379668A true CN110379668A (en) | 2019-10-25 |
| CN110379668B CN110379668B (en) | 2021-02-09 |
Family
ID=68249409
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910553522.7A Active CN110379668B (en) | 2019-06-25 | 2019-06-25 | Multi-plate high-heat-conduction high-voltage vacuum circuit breaker |
| CN202011569736.2A Withdrawn CN112614736A (en) | 2019-06-25 | 2019-06-25 | High-voltage vacuum circuit breaker and using method |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011569736.2A Withdrawn CN112614736A (en) | 2019-06-25 | 2019-06-25 | High-voltage vacuum circuit breaker and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110379668B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009079871A1 (en) * | 2007-12-07 | 2009-07-02 | Abb (China) Limited | Circuit breaker with a heat dissipating means |
| CN102570857A (en) * | 2012-03-05 | 2012-07-11 | 张采兴 | Mining flame-proof type rectifier |
| CN206331964U (en) * | 2016-11-28 | 2017-07-14 | 通用森源（深圳）电气有限公司 | A kind of durable type high-pressure vacuum breaker |
| CN108735546A (en) * | 2017-04-15 | 2018-11-02 | 人民电器集团上海有限公司 | A kind of Intelligent high-voltage vacuum circuit breaker |
| CN108807069A (en) * | 2018-07-05 | 2018-11-13 | 山东高科成套设备有限公司 | A kind of indoor high-voltage vacuum circuit breaker of good heat dissipation effect |
| CN208315420U (en) * | 2018-07-03 | 2019-01-01 | 江西旭光真空电器有限公司 | Heat radiating type vacuum circuit breaker |
-
2019
- 2019-06-25 CN CN201910553522.7A patent/CN110379668B/en active Active
- 2019-06-25 CN CN202011569736.2A patent/CN112614736A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009079871A1 (en) * | 2007-12-07 | 2009-07-02 | Abb (China) Limited | Circuit breaker with a heat dissipating means |
| CN102570857A (en) * | 2012-03-05 | 2012-07-11 | 张采兴 | Mining flame-proof type rectifier |
| CN206331964U (en) * | 2016-11-28 | 2017-07-14 | 通用森源（深圳）电气有限公司 | A kind of durable type high-pressure vacuum breaker |
| CN108735546A (en) * | 2017-04-15 | 2018-11-02 | 人民电器集团上海有限公司 | A kind of Intelligent high-voltage vacuum circuit breaker |
| CN208315420U (en) * | 2018-07-03 | 2019-01-01 | 江西旭光真空电器有限公司 | Heat radiating type vacuum circuit breaker |
| CN108807069A (en) * | 2018-07-05 | 2018-11-13 | 山东高科成套设备有限公司 | A kind of indoor high-voltage vacuum circuit breaker of good heat dissipation effect |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110379668B (en) | 2021-02-09 |
| CN112614736A (en) | 2021-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109818261A (en) | The distribution bus unit of modularization, rail mounted | |
| EP3247011A1 (en) | Multifunctional three phase power distrubution indoor/outdoor unit | |
| CN110379668A (en) | A kind of more plate high thermal conductivity type high-pressure vacuum breakers | |
| CN201508810U (en) | Leakage tripping device with shield | |
| CN208256597U (en) | A kind of Aftercurrent protection circuit breaker for capableing of real time signal processing and control | |
| CN205509350U (en) | Novel intelligence high tension switchgear | |
| CN104505312A (en) | Novel overcurrent protector | |
| CN210223908U (en) | Virtual connection prevention circuit breaker | |
| CN203674059U (en) | Pressure-operated load switch | |
| CN208797569U (en) | A kind of high-voltage switch cabinet breaker closing coil protective device | |
| CN202434942U (en) | Mining flame-proof and pressurized high-voltage power distribution device | |
| CN218514085U (en) | Overload protection device of servo motor | |
| CN206041229U (en) | High tension switchgear with heat dissipation function | |
| CN205960973U (en) | Portable dark wet environment construction safe voltage illumination power supply unit | |
| CN206727034U (en) | Overload protection breaker | |
| US6710696B2 (en) | Fuse housing for network protector | |
| CN217641126U (en) | Automatic switching-on and switching-off fuse | |
| CN217691020U (en) | High-stability electronic circuit breaker | |
| CN218447438U (en) | Box type transformer | |
| CN102364783A (en) | Mining explosion suppression and positive voltage high-voltage distribution device | |
| CN212057469U (en) | Safety-increasing electric heater for coal mine | |
| CN218769238U (en) | Insulation protection device for isolating switch | |
| CN214428513U (en) | Internet of things three-phase power supply intelligent reclosing power consumption protector | |
| CN208257216U (en) | A kind of connector with heat sinking function | |
| CN207200007U (en) | Mesohigh relay with protection integrates module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210125 Address after: 325000 Weng Long Street Industrial Zone, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: RIGHT ELECTRIC Co.,Ltd. Address before: 362000 Guanqiao No.1 central kindergarten, Zhongxin street, Guanqiao Town, Nan'an City, Quanzhou City, Fujian Province Applicant before: NAN'AN XINGSHENG INDUSTRIAL DESIGN Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |