CN111696800A - Wind power generation box becomes fixed mode circuit breaker interlocking device of high pressure and case becomes - Google Patents
Wind power generation box becomes fixed mode circuit breaker interlocking device of high pressure and case becomes Download PDFInfo
- Publication number
- CN111696800A CN111696800A CN202010499430.8A CN202010499430A CN111696800A CN 111696800 A CN111696800 A CN 111696800A CN 202010499430 A CN202010499430 A CN 202010499430A CN 111696800 A CN111696800 A CN 111696800A
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- Prior art keywords
- closing
- interlocking
- wind power
- circuit breaker
- opening
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- 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
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A wind power generation box variable-voltage fixed breaker interlocking device comprises a shell, a closing interlocking mechanism and an opening interlocking mechanism, wherein the closing interlocking mechanism and the opening interlocking mechanism are arranged in the shell; the closing interlocking mechanism comprises a driving plate, a first transmission part and a closing interlocking shaft which are sequentially connected; the first transmission part is used for driving the driving plate to rotate; the driving plate is used for pushing the closing linkage shaft; the closing linkage shaft is used for limiting the operation of an operating mechanism of the external switch after extending out of the shell; the brake separating interlocking mechanism comprises a brake separating driving part, a second transmission part and a brake separating locking part which are connected in sequence; the opening driving part is used for driving the second transmission part to rotate; the second transmission part is used for driving the opening locking part to rotate; the opening locking part is used for limiting the rotation of the opening main shaft of the circuit breaker. According to the invention, the switching-on interlocking mechanism and the switching-off interlocking mechanism are arranged in the shell, so that the whole modularization is realized. The interlocking of the circuit breaker and the disconnecting switch or the grounding switch during opening and closing can be realized through the closing interlocking mechanism and the opening interlocking mechanism.
Description
Technical Field
The invention belongs to the field of high-voltage power distribution, and particularly relates to a high-voltage fixed circuit breaker interlocking device for a wind power generation box transformer substation and the box transformer substation.
Background
With the development of new energy, wind power generation is one of the main components in the field of new energy at present. In the process of wind power generation, a wind power generation box transformer is needed, which is difficult to avoid.
Wind power generation case becomes in the use, needs circuit breaker, isolator and earthing switch that are difficult to avoid cooperate, and the accuracy of power supply had both been guaranteed to the cooperation in-process, the security had again to be guaranteed, therefore wind power generation case becomes and often can need set up linkage between circuit breaker and isolator, earthing switch. However, most of the existing interlocking structures have complex structures, poor reliability and inconvenient installation and adjustment.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a variable-voltage fixed circuit breaker interlocking device for a wind power generation box, which integrally adopts a modular structure and solves the problems of inconvenient installation and adjustment and poor reliability of the interlocking device. The invention further provides a wind power generation box transformer substation.
According to the embodiment of the first aspect of the invention, the interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation comprises a shell, a closing interlocking mechanism and an opening interlocking mechanism, wherein the closing interlocking mechanism and the opening interlocking mechanism are arranged in the shell; the switching-on interlocking mechanism comprises a driving plate, a first transmission part and a switching-on interlocking shaft which are sequentially connected; the first transmission part is used for connecting a breaker closing main shaft and driving the driving plate to rotate; the driving plate is used for pushing the closing linkage shaft; the switching-on interlocking shaft is used for limiting the operation of an operating mechanism of the external switch after extending out of the shell; the brake separating interlocking mechanism comprises a brake separating driving part, a second transmission part and a brake separating locking part which are sequentially connected; the opening driving part is used for being connected with an operating mechanism of the external switch and driving the second transmission part to rotate; the second transmission part is used for driving the opening locking part to rotate; the opening locking part is used for limiting the rotation of the opening main shaft of the circuit breaker.
The interlocking device for the high-voltage fixed circuit breaker of the wind power generation box transformer substation provided by the embodiment of the invention at least has the following technical effects: through setting closing interlocking gear, separating brake interlocking gear in the casing, realized holistic modularization, subsequent installation, regulation, maintenance have been convenient for. The interlocking mechanism for closing can be used for interlocking with a main closing shaft of the circuit breaker when the isolating switch or the grounding switch is closed. The interlocking with the opening main shaft of the circuit breaker can be realized when the isolating switch or the grounding switch is opened through the opening interlocking mechanism. Compared with the traditional connecting mechanism, the connecting mechanism has the characteristics of high reliability, convenience in adjustment, high production and assembly efficiency, strong applicability and the like.
According to some embodiments of the invention, the closing linkage mechanism further comprises a closing link for assisting the first transmission part to be connected with the closing spindle of the circuit breaker.
According to some embodiments of the invention, the installation end surface of the closing connecting rod is uniformly provided with a circle of round holes for adjusting the installation angle.
According to some embodiments of the invention, the first transmission part, the second transmission part and the closing interlock shaft are all transmission shafts.
According to some embodiments of the invention, the closing interlock further comprises a closing return spring for returning the closing interlock shaft.
According to some embodiments of the invention, the opening driving part is of a plate-like structure.
According to some embodiments of the invention, the opening blocking part is of a plate-like structure.
According to some embodiments of the invention, the opening interlocking mechanism further comprises an opening return spring for returning the second transmission part.
According to some embodiments of the invention, the shell is made of steel plate.
According to the second aspect of the invention, the wind power box transformer substation comprises a wind power box transformer substation body and any one of the wind power box transformer substation high-voltage fixed circuit breaker interlocking devices connected with the wind power box transformer substation body.
The wind power generation box transformer substation provided by the embodiment of the invention at least has the following technical effects: the wind power generation box becomes the body and can realize that circuit breaker and isolator, earthing switch are chain through increasing wind power generation box and becoming fixed circuit breaker interlock, guarantees the security of whole wind power generation box change body and whole distribution system in the course of the work. In addition, because the fixed circuit breaker interlocking device of wind power generation box transformer substation high voltage is a modularized structure, the follow-up installation, replacement and adjustment in the matching use process with the wind power generation box transformer substation body are convenient, and the complex installation and connection process is not required to be carried out like the traditional interlocking structure.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic top view (with additional circuit breaker portion) of an embodiment of the first aspect of the present invention;
FIG. 2 is a schematic axial side view of an embodiment of the first aspect of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
fig. 4 is a schematic front view of an embodiment of the first aspect of the present invention (with the addition of a first mounting plate and a second mounting plate).
Reference numerals:
a housing 100, a first mounting plate 110, a second mounting plate 120,
A second transmission part 310, a brake separating and locking part 320, a brake separating and driving part 330, a brake separating and returning spring 340,
A breaker closing main shaft 410, a breaker opening main shaft 420 and a bent plate 421.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, if there are first, second, third, fourth, etc. described only for the purpose of distinguishing technical features, they are not to be interpreted as indicating or implying relative importance or implying number of indicated technical features or implying precedence of indicated technical features.
In the description of the present invention, unless otherwise explicitly defined, terms such as arrangement, connection and the like should be broadly construed, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the detailed contents of the technical solutions.
A wind power generation box-to-high voltage fixed circuit breaker interlocking apparatus according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 4.
The interlocking device for the high-voltage fixed circuit breaker of the wind power generation box transformer substation comprises a shell 100, and a closing interlocking mechanism and an opening interlocking mechanism which are arranged in the shell 100; the closing interlocking mechanism comprises a driving plate 240, a first transmission part 210 and a closing interlocking shaft 220 which are connected in sequence; the first transmission part 210 is used for connecting the breaker closing main shaft 410 and driving the driving plate 240 to rotate; the driving plate 240 is used to push the closing interlock shaft 220; the closing interlock shaft 220 is used to restrict the operation of an operating mechanism of the external switch after extending out of the housing 100; the opening interlocking mechanism comprises an opening driving part 330, a second transmission part 310 and an opening locking part 320 which are connected in sequence; the opening driving part 330 is used for connecting an operating mechanism of an external switch and driving the second transmission part 310 to rotate; the second transmission part 310 is used for driving the opening locking part 320 to rotate; the opening blocking part 320 is used for limiting the rotation of the opening main shaft 420 of the circuit breaker.
Referring to fig. 1 to 4, a closing interlock mechanism and an opening interlock mechanism are respectively disposed at both sides of a housing 100. In some embodiments of the present invention, the housing 100 has a rectangular parallelepiped structure, which is beneficial for mass production, and the rectangular parallelepiped shape not only meets the requirement of a larger internal space, but also facilitates the installation of the following interlocking device of the embodiments of the present invention. The housing 100 may also have other shapes, and only needs to accommodate the closing and opening interlocking mechanisms, for example: a cube, trapezoidal table, etc. may be used.
Referring to fig. 1 to 3, the first transmission portion 210 is connected to the circuit breaker closing spindle 410, and when the circuit breaker closing spindle 410 rotates, the first transmission portion 210 is driven to rotate, the first transmission portion 210 drives the driving plate 240 to rotate, and the driving plate 240 pushes the closing linkage shaft 220 to extend out of the housing 100 and extend into an operating mechanism of the disconnecting switch or the grounding switch to limit the operating mechanism. In some embodiments of the present invention, in order to facilitate the first transmission part 210 to rotate in the housing 100, at least two first transmission support plates are disposed on a side plate of the housing 100 on a side where the closing interlock mechanism is located, and through holes are disposed on the first transmission support plates, and the through holes can allow the first transmission part 210 to pass through the middle and rotate. There are many rotatable methods, and besides the above methods, the rotatable method can be directly completed by using existing mechanical parts such as bearings, but the cost is high by using the bearings.
Referring to fig. 1 to 3, the opening driving part 330 is connected to the second transmission part 310, and when the operating mechanism of the disconnecting switch or the grounding switch operates, the opening driving part 330 is toggled to rotate, the opening driving part 330 further drives the second transmission part 310 to rotate, and the second transmission part 310 drives the opening locking part 320 to rotate until the opening locking part 320 presses the bent plate 421 of the opening main shaft 420 of the circuit breaker, so that the circuit breaker is always in an opening state and cannot be closed. In some embodiments of the present invention, also to facilitate the rotation of the second transmission part 310 in the housing 100, at least two second transmission support plates are disposed on a side plate of the housing 100 on the side where the opening/closing interlocking mechanism is located, and through holes are disposed on the second transmission support plates, and the through holes can allow the second transmission part 310 to pass through the middle and rotate. The second transmission portion 310 may also be provided with a bearing or the like.
According to the interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation, the switching-on interlocking mechanism and the switching-off interlocking mechanism are arranged in the shell 100, so that the integral modularization is realized, and the follow-up installation, adjustment and maintenance are facilitated. The interlocking with the breaker closing main shaft 410 can be realized when the isolating switch or the grounding switch is closed through the closing interlocking mechanism. The interlocking with the breaker opening main shaft 420 can be realized by the opening interlocking mechanism when the disconnecting switch or the grounding switch is opened. Compared with the traditional connecting mechanism, the connecting mechanism has the characteristics of high reliability, convenience in adjustment, high production and assembly efficiency, strong applicability and the like.
In some embodiments of the invention, the mounting of the housing 100 is performed by welding directly. However, to further increase the modularity and ease of installation of the interlock device of embodiments of the present invention, in some embodiments of the present invention, a mounting assembly is provided on the housing 100. Referring to fig. 4, an elongated first mounting plate 110 is provided at one side of the housing 100, and a plurality of mounting holes are provided at the first mounting plate 110 for mounting, through which the mounting position of the entire housing 100 can be adjusted. The second mounting plate 120 is disposed on the other side of the casing 100, and the combined use of the first mounting plate 110 and the second mounting plate 120 can effectively improve the stability of the whole casing 100 after installation.
In some embodiments of the present invention, the closing linkage further comprises a closing link 230. The closing link 230 is used to assist the first transmission unit 210 to be connected to the breaker closing main shaft 410. Referring to fig. 1 to 3, the closing link 230 is connected between the first transmission part 210 and the circuit breaker closing spindle 410, and when the circuit breaker closing spindle 410 rotates, the closing link 230 is driven to rotate, and after the closing link 230 rotates, the first transmission part 210 is further driven to rotate. The connection between the first transmission part 210 and the circuit breaker closing main shaft 410 is completed through the closing link 230, so that the connection is more convenient and stable.
In some embodiments of the present invention, referring to fig. 2, the mounting end surface 231 of the closing link 230 is uniformly provided with a circular hole for adjusting a mounting angle. In some cases, the connection may not be completely aligned, and the position of the housing 100 needs to be adjusted properly, but many times, the position of the housing 100 is not moved well, and a certain angle can be adjusted by the circular hole formed on the mounting end surface 231 of the closing link 230, so that the workload can be reduced compared with the adjustment of the mounting position of the entire housing 100.
In some embodiments of the present invention, referring to fig. 1 to 3, the first transmission part 210, the second transmission part 310, and the closing interlock shaft 220 all employ transmission shafts. The transmission shaft is a standard cylindrical structure, and under the condition that first transmission portion 210, second transmission portion 310 use the transmission shaft, compare in other special-shaped framework, can further guarantee closing interlocking mechanism, separating brake interlocking mechanism moving continuity and stability, simultaneously, adopt the transmission shaft can effectual reduction first transmission portion 210, second transmission portion 310, at rotatory in-process and closing interlocking shaft 220 at the friction of flexible in-process, can increase closing interlocking mechanism, the holistic life of separating brake interlocking mechanism.
In some embodiments of the present invention, the closing linkage further includes a closing return spring 250, and the closing return spring 250 is used to return the closing linkage shaft 220. When the circuit breaker is closed, the driving plate 240 pushes out the closing interlock shaft 220, but in some embodiments of the present invention, the driving plate 240 is not connected to the closing interlock shaft 220, and thus cannot automatically return to an original state after the closing interlock shaft 220 is pushed out. In some embodiments of the present invention, the resetting of the closing interlock shaft 220 is achieved by connecting a closing return spring 250 to the closing interlock shaft 220. Specifically, referring to fig. 1 to 3, a side plate of the casing 100 where the closing interlocking shaft 220 is located is provided with at least two supporting plates of the closing interlocking shaft 220, and the supporting plates are provided with through holes to allow the closing interlocking shaft 220 to pass through and to ensure that the closing interlocking shaft 220 moves back and forth along its axis. The closing interlock shaft 220 passes through the closing return spring 250, the closing return spring 250 is disposed between the two support plates, and then the closing interlock shaft 220 is fixed to the closing return spring 250. In some embodiments, a through hole is formed in the closing interlock shaft 220, and then the through hole is connected to the closing return spring 250 to complete the fixing. After the closing return spring 250 is installed, as long as the driving board 240 is restored to the original position by being driven by the breaker closing main shaft 410, the closing interlock shaft 220 is restored to the original position by being driven by the closing return spring 250.
In some embodiments of the present invention, referring to fig. 1 to 3, the opening driving part 330 adopts a plate-shaped structure. When the second transmission part 310 adopts the transmission shaft structure, the plate-shaped structure is disposed parallel to the axis of the second transmission part 310. When the operation mechanism of the isolating switch or the grounding switch operates, the second transmission part 310 can be driven to rotate by shifting the plate-shaped structure. The plate-shaped structure can effectively increase the contact area with the isolating switch or the grounding switch, and compared with a triangular structure, a trapezoidal structure or other special-shaped structures, the plate-shaped structure can ensure the contact area and improve the stability of connection between the opening driving part 330 and the second transmission part 310.
In some embodiments of the present invention, referring to fig. 1 to 3, the opening blocking part 320 adopts a plate-shaped structure. The plate-shaped structure is disposed perpendicular to the axis of the second transmission part 310. The second transmission portion 310 rotates to drive the plate-shaped structure to move. By adopting the plate-shaped structure, on one hand, the characteristic of thin thickness of the plate-shaped structure can be utilized, the probability of touching with other mechanisms or parts can be reduced, and meanwhile, the characteristic of wider width of the plate-shaped structure can be utilized, so that the plate-shaped structure has higher strength and can play a more powerful limiting role.
In some embodiments of the present invention, referring to fig. 2, the mounting end surface of the opening locking part 320 is uniformly provided with a circle of round holes for adjusting the mounting angle. Under some circumstances, the height of the bent plate 421 of the opening main shaft 420 of the circuit breaker may be inconsistent, and at this time, the position of the housing 100 needs to be properly adjusted, but many times, the position of the housing 100 is not very convenient to move, and the amount of work is large, and at this time, the adjustment of a certain angle can be realized through the circular hole formed in the mounting end surface of the opening locking part 320, so that the workload can be greatly reduced when the mounting position of the whole housing 100 is changed.
In some embodiments of the present invention, the opening interlocking mechanism further includes an opening return spring 340, and the opening return spring 340 is used for returning the second transmission part 310. When the circuit breaker is opened, the operating mechanism of the disconnecting switch or the grounding switch pushes the second transmission part 310 to rotate through the opening driving part 330, but the opening driving part 330 is not connected with the operating mechanism of the disconnecting switch or the grounding switch, so that the second transmission part 310 cannot be automatically restored to the original state after rotating. In some embodiments of the present invention, the reset of the second transmission part 310 is achieved by connecting the opening reset spring 340 to the second transmission part 310. Specifically, referring to fig. 1 to 4, at least two support plates of the second transmission portion 310 are disposed on a side plate of the casing 100 where the second transmission portion 310 is located, and the support plates are all provided with through holes to allow the second transmission portion 310 to pass through and ensure that the second transmission portion 310 rotates along its axis. The second transmission part 310 passes through the opening return spring 340, one end of the opening return spring 340 is connected to any supporting plate, and then the second transmission part 310 is fixed on the closing return spring 250. In some embodiments, the second transmission part 310 is provided with a through hole, and then the through hole is connected with the opening return spring 340. After the opening return spring 340 is installed, the second transmission part 310 can be restored to the original position after the related operation is finished.
In some embodiments of the present invention, the housing 100 is made of steel plate. The dry plate adopted by the shell 100 can effectively improve the strength of the shell 100 and prolong the service life of the whole interlocking device in the embodiment of the invention.
The box transformer substation according to the second aspect of the invention comprises a wind power generation box transformer substation body and any one of the wind power generation box high-voltage fixed circuit breaker interlocking devices connected with the wind power generation box transformer substation body.
According to the box transformer substation provided by the embodiment of the invention, the wind power generation box high-voltage fixed breaker interlocking device is additionally arranged, so that the interlocking of the breaker, the disconnecting switch and the grounding switch of the wind power generation box transformer substation body can be realized, and the safety of the whole wind power generation box transformer substation body and the whole power distribution system in the working process is ensured. In addition, because the fixed circuit breaker interlocking device of wind power generation box transformer substation high voltage is a modularized structure, the follow-up installation, replacement and adjustment in the matching use process with the wind power generation box transformer substation body are convenient, and the complex installation and connection process is not required to be carried out like the traditional interlocking structure.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments, and those skilled in the art will understand that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a wind power generation case becomes fixed formula circuit breaker interlocking device of high pressure which characterized in that: the switching-on interlocking mechanism and the switching-off interlocking mechanism are arranged in the shell;
the switching-on interlocking mechanism comprises a driving plate, a first transmission part and a switching-on interlocking shaft which are sequentially connected; the first transmission part is used for connecting a breaker closing main shaft and driving the driving plate to rotate; the driving plate is used for pushing the closing linkage shaft; the switching-on interlocking shaft is used for limiting the operation of an operating mechanism of the external switch after extending out of the shell;
the brake separating interlocking mechanism comprises a brake separating driving part, a second transmission part and a brake separating locking part which are sequentially connected; the opening driving part is used for being connected with an operating mechanism of the external switch and driving the second transmission part to rotate; the second transmission part is used for driving the opening locking part to rotate; the opening locking part is used for limiting the rotation of the opening main shaft of the circuit breaker.
2. The interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation of claim 1, wherein the closing interlocking mechanism further comprises a closing connecting rod, and the closing connecting rod is used for assisting the first transmission part to be connected with a closing main shaft of the circuit breaker.
3. The interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation according to claim 2, wherein a circle of round holes for adjusting the installation angle are uniformly formed in the installation end surface of the closing connecting rod.
4. The interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation of claim 1, wherein the first transmission part, the second transmission part and the closing interlocking shaft are transmission shafts.
5. The interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation according to any one of claims 1 to 4, wherein the closing interlocking mechanism further comprises a closing return spring, and the closing return spring is used for returning the closing interlocking shaft.
6. The interlocking device for the high-voltage fixed circuit breaker of the wind power generation box transformer substation according to claim 1, wherein the opening driving part is of a plate-shaped structure.
7. The interlocking device for the high-voltage fixed circuit breaker of the wind power generation box transformer substation according to claim 1, wherein the opening locking part is of a plate-shaped structure.
8. The wind power generation box transformer high-voltage fixed circuit breaker interlocking device according to claim 1, wherein the opening interlocking mechanism further comprises an opening return spring for returning the second transmission part.
9. The interlocking device of the high-voltage fixed circuit breaker of the wind power generation box transformer substation of claim 1, wherein the shell is made of a steel plate.
10. A wind power box transformer substation, characterized by comprising a wind power box transformer substation body and the high-voltage fixed circuit breaker interlocking device of the wind power box transformer substation according to any one of claims 1 to 9 connected with the wind power box transformer substation body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010499430.8A CN111696800A (en) | 2020-06-04 | 2020-06-04 | Wind power generation box becomes fixed mode circuit breaker interlocking device of high pressure and case becomes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010499430.8A CN111696800A (en) | 2020-06-04 | 2020-06-04 | Wind power generation box becomes fixed mode circuit breaker interlocking device of high pressure and case becomes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111696800A true CN111696800A (en) | 2020-09-22 |
Family
ID=72478910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010499430.8A Pending CN111696800A (en) | 2020-06-04 | 2020-06-04 | Wind power generation box becomes fixed mode circuit breaker interlocking device of high pressure and case becomes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111696800A (en) |
-
2020
- 2020-06-04 CN CN202010499430.8A patent/CN111696800A/en active Pending
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Address after: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Applicant after: Guangdong Mingyang Electric Co.,Ltd. Address before: No.1, Hengmen Xingye West Road, Nanlang Town, Zhongshan City, Guangdong Province, 528400 Applicant before: Guangdong Mingyang Electric Co.,Ltd. |
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