CN216818195U - Upper isolation circuit breaker - Google Patents
Upper isolation circuit breaker Download PDFInfo
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- CN216818195U CN216818195U CN202220273912.6U CN202220273912U CN216818195U CN 216818195 U CN216818195 U CN 216818195U CN 202220273912 U CN202220273912 U CN 202220273912U CN 216818195 U CN216818195 U CN 216818195U
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- arc extinguish
- extinguish chamber
- linkage
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Abstract
The utility model discloses an upper isolation circuit breaker, which relates to the technical field of electrical accessories, and adopts the technical scheme that: the device comprises a bracket, an isolating switch and an arc extinguish chamber; the isolating switch comprises an isolating disconnecting link and a static contact, and also comprises a butt joint frame, a driving mechanism and a linkage structure; the butt joint frame is arranged on the bracket and is provided with a guide sleeve; the driving mechanism is connected with the arc extinguish chamber; the linkage structure comprises a linkage piece and a guide groove; one end of the linkage piece is fixed at the top of the arc extinguish chamber, and the other end of the linkage piece is inserted into the guide groove in a sliding manner; the guide groove is arranged on the rotating shaft of the isolation disconnecting link and extends along the radial direction of the axis of the isolation disconnecting link so as to guide the moving block to drive the rotating shaft of the isolation switch to rotate when the moving block moves relatively. The utility model can realize the linkage of the isolating switch and the arc extinguish chamber, ensures the synchronous opening and closing of the isolating switch and the arc extinguish chamber, simplifies power output, improves the stability of the system, avoids the influence of over-high voltage or an LC circuit on a circuit, and improves the reliability of the circuit breaker.
Description
Technical Field
The utility model relates to the technical field of electrical accessories, in particular to an upper isolation circuit breaker.
Background
The solid ring main unit is a ring main unit which adopts a solid insulating material as a main insulating medium, and a core part of the solid ring main unit adopts a load switch and a fuse, so that the solid ring main unit has the advantages of improving power supply parameters and performance, improving power supply safety and the like. The mode of ground connection is leading under the following isolation of traditional looped netowrk cabinet equipment generally, in order to prevent the circuit breaker trouble, has adopted isolation breaker to install and use in the looped netowrk cabinet now, reserves the big isolation fracture of air to the personal safety of protection.
If the grant bulletin number is CN206685302U, chinese patent that bulletin date is 2017.11.28 discloses an go up isolation breaker, it includes mounting bracket, explosion chamber, female and has the isolator of the ability of opening and shutting, isolator is including setting up at the last contact mechanism at mounting bracket top, setting up lower contact mechanism and the actuating mechanism at the quiet end of explosion chamber, lower contact mechanism passes through actuating mechanism and is connected or separately with last contact mechanism, the explosion chamber is installed on the mounting bracket and the quiet end of explosion chamber up, moves the end down, isolator installs on the mounting bracket and is connected with the quiet end of explosion chamber, the explosion chamber moves the end and is connected with female row through coupling mechanism, the mounting bracket be provided with can with coupling mechanism complex slewing mechanism, slewing mechanism passes through the coupling mechanism drive the explosion chamber moves about moving.
The lower contact mechanism is driven by the driving mechanism to be connected with or separated from the upper contact mechanism, and the rotating mechanism drives the connecting mechanism to enable the movable end of the arc extinguish chamber to move up and down, so that the arc extinguish chamber is completely closed or disconnected. However, the isolating switch is separated from the arc extinguish chamber, so that the space occupied is large, and the isolating switch and the short circuit switch can be carried out only by driving the corresponding mechanisms respectively, so that synchronous on-off is difficult to form, the synchronism is poor, and potential safety hazards of use may exist.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide an upper isolating circuit breaker which can realize linkage of the upper isolating circuit breaker and the lower isolating circuit breaker, ensure that an isolating switch and an arc extinguish chamber are synchronously opened and closed, simplify power output, improve system stability, avoid the influence of over-high voltage or an LC circuit on a circuit and improve the reliability of the circuit breaker.
In order to achieve the purpose, the utility model provides the following technical scheme:
an upper isolating circuit breaker comprises a bracket, an isolating switch and an arc extinguish chamber; the isolating switch comprises an isolating switch which rotates on the bracket, a static contact which is arranged on the bracket, a butt joint frame, a driving mechanism and a linkage structure;
the butt joint frame is arranged on the bracket and is provided with a guide sleeve for the arc extinguish chamber to slide up and down;
the driving mechanism is connected with the arc extinguish chamber and used for driving the arc extinguish chamber to move on the guide sleeve to be opened and closed;
the linkage structure comprises a linkage piece and a guide groove; one end of the linkage piece is fixed at the top of the arc extinguish chamber so as to lift along with the arc extinguish chamber, and the other end of the linkage piece is inserted into the guide groove in a sliding manner; the guide groove is arranged on the rotating shaft of the isolation disconnecting link and extends from the axis of the isolation disconnecting link along the radial direction of the axis of the isolation disconnecting link so as to guide the moving block to drive the rotating shaft of the isolation disconnecting link to rotate when the moving block moves relatively;
the driving mechanism drives the arc extinguish chamber to move up and down to drive the linkage piece to move in the guide groove, so that the linkage isolation switch rotating shaft is linked to rotate through the matching of the guide groove and the linkage piece.
Further setting: the linkage piece comprises a mounting block, a linkage block and a driving block; the mounting block is mounted at the center of the top of the arc extinguish chamber so as to move up and down along with the arc extinguish chamber; one end of the linkage block is arranged at one end of the mounting block deviating from the axis of the arc extinguish chamber, and the other end of the linkage block extends towards the isolating switch and is connected with the driving block; the driving block is inserted in the guide groove so as to move relative to the guide groove when the driving block moves up and down, and the guide groove is driven to rotate around the axis of the isolation switch.
Further setting: a abdicating groove for inserting the linkage block is formed in the rotating shaft of the isolation switch; the guide grooves are arranged on the groove walls of the abdicating grooves and are symmetrically provided with two guide grooves for the two ends of the driving block to be inserted and connected to provide double-rail guide.
Further setting: the top of the guide sleeve is provided with a plurality of limiting grooves surrounding the outer peripheral wall of the arc extinguish chamber; the mounting block is provided with a plurality of limiting parts inserted in the limiting grooves, so that the mounting block is in rotation stopping fit with the guide sleeve.
Further setting: the driving mechanism comprises a breaker rotating shaft and a cam assembly; the breaker rotating shaft is connected with the cam assembly to drive the cam assembly to rotate; the cam component is arranged at the bottom of the arc extinguish chamber to convert circumferential rotation into linear movement to drive the arc extinguish chamber to open and close.
Further setting: the cam assembly comprises a transmission cam, a rotating rod and a connecting rod; the transmission cam is arranged on the rotating shaft of the circuit breaker, and an eccentric slideway is arranged at a position deviating from the rotating shaft of the circuit breaker; the rotating rod is arranged on the eccentric slideway in a sliding manner so as to slide relative to the eccentric slideway; the one end of connecting rod is connected in the explosion chamber bottom, and the other end rotates with the dwang to follow the position change of dwang and reciprocate.
Further setting: the transmission cams are symmetrically arranged on the axis of the connecting rod, and are respectively aligned to two sides of the connecting rod, so that two ends of the rotating rod can be respectively inserted in a sliding mode through the two eccentric sliding ways.
Further setting: the bottom of the guide sleeve is provided with a rotating sleeve which is sleeved on a rotating shaft of the rotating mechanism; the rotating sleeve is provided with a guide convex part for the connecting rod to lift and sleeve the end far away from the arc extinguish chamber.
Further setting: the guide convex part is provided with a lifting guide groove for the rotating rod to slide up and down at the position of the rotating rod.
Compared with the prior art, the utility model has the following advantages by adopting the technical scheme:
1. the driving mechanism drives the arc extinguish chamber to move on the guide sleeve, so that the arc extinguish chamber is opened and closed, the linkage piece is driven to move in the guide groove, and the rotating shaft of the isolation switch is linked to rotate through the matching of the guide groove and the linkage piece, so that the on-off of the isolation switch is realized, the linkage of the isolation switch and the arc extinguish chamber is realized, the power output is simplified, the system stability is improved, the isolation switch and the arc extinguish chamber are ensured to be opened and closed synchronously, the influence of over-high voltage or LC (inductor-capacitor) loops on a circuit is avoided, and the reliability of the circuit breaker is improved;
2. the installation block is installed on the arc extinguish chamber, so that the movement of the installation block drives the linkage block to move, further drives the driving card to move relatively in the guide groove, the rotation of the isolation disconnecting link is realized, further the quick linkage of the isolation switch and the arc extinguish chamber is realized, the structure is simple, and the occupied space is reduced;
3. through the arranged abdicating grooves, the butt joint of the linkage blocks is facilitated, two guide grooves can be provided for the relative sliding of the two ends of the driving card, the double-gauge guide is provided, the stability in linkage is improved, and the reliability of the circuit breaker is further improved;
4. the axial rotation of the rotating shaft of the circuit breaker can be converted into linear movement for driving the arc extinguish chamber to open and close by matching the rotating shaft of the circuit breaker with the cam assembly, so that linkage can be conveniently and quickly formed;
5. two transmission cams are adopted for butt joint of two ends of the rotating rod, so that bidirectional guide for the movement of the rotating rod can be provided, the movement stability of the rotating rod is improved, and the stability of the arc extinguish chamber during opening and closing is further improved;
6. the rotating shaft of the circuit breaker can be conveniently rotatably installed through the rotating sleeve, the rotating stability of the rotating shaft of the circuit breaker can be improved, and meanwhile, the stability of the connecting rod during movement is improved by matching the guide convex part with the connecting rod, so that the stability of the arc extinguish chamber during opening and closing is improved;
7. through the lift guide slot that sets up, offer the position on the convex part of direction when can providing the dwang activity to provide the direction of dwang activity, stability when improving the explosion chamber and opening and shutting.
Drawings
Fig. 1 is a schematic structural view of an upper disconnecting circuit breaker according to the present invention;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic structural diagram of the upper disconnecting switch according to the present invention when the rotating shaft of the switch and one of the driving cams are exploded;
FIG. 4 is an enlarged schematic view at B of FIG. 3;
fig. 5 is an enlarged schematic view at C in fig. 3.
In the figure: 1. a support; 2. an isolating switch; 21. isolating the disconnecting link; 211. a yielding groove; 22. static contact; 3. an arc extinguishing chamber; 4. a docking rack; 41. a guide sleeve; 411. a limiting groove; 42. rotating the sleeve; 421. a guide projection; 422. a lifting guide groove; 43. a support arm; 5. a drive mechanism; 51. a breaker shaft; 52. a cam assembly; 521. a drive cam; 5211. an eccentric slideway; 522. rotating the rod; 523. a connecting rod; 5231. a socket; 6. a linkage structure; 61. a linkage member; 611. mounting blocks; 6111. a limiting part; 612. a linkage block; 613. a drive block; 62. a guide groove; 7. a return spring.
Detailed Description
The upper disconnecting circuit breaker is further explained with reference to fig. 1 to 5.
An upper disconnecting circuit breaker is shown in fig. 1 and comprises a bracket 1, a disconnecting switch 2, a butt joint frame 4, an arc extinguish chamber 3, a driving mechanism 5 and a linkage structure 6; the isolating switch 2 comprises an isolating switch 21 rotating on the bracket 1 and a static contact 22 arranged at the top of the bracket 1; the linkage structure 6 is arranged between the arc extinguish chamber 3 and the isolation switch 21 so as to link the arc extinguish chamber 3 and the isolation switch 21; arc extinguishing chamber 3 activity is located on butt joint frame 4 to drive it through actuating mechanism 5 and open and shut, and then drive isolation switch 21 through linkage structure 6 and rotate to carrying out the break-make with static contact 22, realize the linkage of the two, simplify power output, improve system stability, and guarantee that isolator 2 and arc extinguishing chamber 3 open and shut in step, avoid arousing the influence of high voltage or LC return circuit to the circuit, improve the reliability of circuit breaker.
As shown in fig. 1 and 3, the docking bracket 4 is fixedly mounted on the bracket 1 by bolts and has a guide sleeve 41 for the arc-extinguishing chamber 3 to slide up and down, so that the arc-extinguishing chamber 3 moves in the guide sleeve 41 to open and close. Wherein, keep apart switch 21 and be located butt joint frame 4 top to be connected with 3 tops of explosion chamber through linkage 6, drive isolation switch 21 when making the explosion chamber 3 activity and rotate and open and shut, guarantee that the two opens and shuts in step.
As shown in fig. 1, 3 and 4, a driving mechanism 5 connected to the arc-extinguishing chamber 3 for driving the arc-extinguishing chamber 3 to move on the guide sleeve 41 for opening and closing; specifically, the driving mechanism 5 includes a breaker shaft 51 and a cam assembly 52; the breaker rotating shaft 51 is connected with the cam assembly 52 to drive the cam assembly 52 to rotate; the cam assembly 52 is disposed at the bottom of the arc-extinguishing chamber 3 to convert the circumferential rotation into the linear movement to drive the arc-extinguishing chamber 3 to open and close. Wherein, the cam assembly 52 comprises a transmission cam 521, a rotating rod 522 and a connecting rod 523; the transmission cam 521 is fixedly arranged on the breaker rotating shaft 51, and an eccentric slideway 5211 is arranged at a position deviating from the breaker rotating shaft 51; the rotating rod 522 is slidably disposed on the eccentric runner 5211 to slide relative to the eccentric runner 5211; one end of the connecting rod 523 is fixed to the bottom of the arc extinguish chamber 3, and the other end is rotatably connected with the rotating rod 522 so as to move up and down along with the position change of the rotating rod 522; when circuit breaker pivot 51 rotates, can drive transmission cam 521 and rotate, and then drive eccentric slide 5211 and remove for dwang 522 removes at eccentric slide 5211, and reciprocates for circuit breaker pivot 51, can drive the operation that opens and shuts in the upper and lower activity of explosion chamber 3 through connecting rod 523, realizes the operation that opens and shuts of explosion chamber 3.
As shown in fig. 3 and 4, further, a bus bar and a return spring 7 are sleeved on the connecting rod 523, and a positioning plate is fixed at a position below the bus bar, so that one end of the return spring 7 is connected to the positioning plate, and the other end is connected to the bus bar, so as to provide a return elastic force for the connecting rod 523 after movement by using the return spring 7. In addition, the transmission cam 521 is symmetrical to the axis of the connecting rod 523 and is arranged at two sides of the connecting rod 523 respectively, so that the two ends of the rotating rod 522 are slidably inserted by utilizing the two eccentric slide ways 5211, the two ends of the rotating rod 522 are guided, the deflection is avoided, the stability of the rotating rod 522 during moving is improved, and the stability of the arc extinguish chamber 3 during moving is further improved.
As shown in fig. 3 and 4, in order to improve the stability of the cam assembly 52 during transmission, a rotating sleeve 42 sleeved on the breaker rotating shaft 51 is fixedly arranged at the bottom of the butt sleeve, so that the rotating sleeve 42 and the breaker rotating shaft 51 are relatively rotatably arranged; rotate cover 42 and pass through support arm 43 and butt joint cover body coupling, and rotate cover 42 and be provided with direction convex part 421 towards the connecting rod 523 on the surface, the one end that keeps away from explosion chamber 3 with supplying connecting rod 523 goes up and down to cup joint, set up the socket 5231 that is used for cup jointing on direction convex part 421 in the one end of keeping away from explosion chamber 3 at connecting rod 523 promptly, when making connecting rod 523 follow dwang 522 and go up and down, form the direction through socket 5231 and direction convex part 421, further improve the stability of connecting rod 523 activity, and then improve the stability that cam assembly 52 drove explosion chamber 3 activity. Wherein, offer the lift guide slot 422 that is used for supplying dwang 522 to go up and down to slide at direction convex part 421 to the position department that lies in dwang 522 to provide when dwang 522 goes up and down to move and give way, avoid causing and interfere, provide the direction for the activity of dwang 522 simultaneously, further improve the stability that cam subassembly 52 drove explosion chamber 3 activity.
As shown in fig. 1 and fig. 2, the guide sleeve 41 is integrally formed on the docking frame 4, and a position-giving opening for allowing the top of the arc extinguish chamber 3 to move is formed at the top of the docking frame, and a top cover for limiting the moving stroke of the arc extinguish chamber 3 is arranged at the position of the guide sleeve 41 surrounding the position-giving opening, so that the arc extinguish chamber 3 moves in a certain range at the stroke in the guide sleeve 41, the arc extinguish chamber 3 is prevented from moving too much, and the stability of opening and closing the arc extinguish chamber 3 is ensured. In addition, a plurality of limiting grooves 411 surrounding the outer peripheral wall of the arc extinguish chamber 3 are arranged at the top of the guide sleeve 41; the mounting block 611 is provided with a plurality of limiting portions 6111 inserted into the limiting groove 411, so that the mounting block 611 and the guide sleeve 41 are in rotation stopping fit, rotation of the arc extinguish chamber 3 in the guide sleeve 41 after opening and closing is avoided, and reliability of the circuit breaker is improved.
As shown in fig. 1, 3 and 5, the link structure 6 includes a link piece 61 and a guide groove 62; one end of the linkage piece 61 is fixed on the top of the arc extinguish chamber 3 so as to lift along with the arc extinguish chamber 3, and the other end is inserted in the guide groove 62 in a sliding manner; the guide groove 62 is arranged on the rotating shaft of the isolating switch 21 and extends from the axis of the rotating shaft of the isolating switch 21 along the radial direction of the rotating shaft so as to guide the moving block to drive the rotating shaft of the isolating switch 2 to rotate when the moving block moves relatively; when the driving mechanism 5 drives the arc extinguish chamber 3 to move up and down for opening and closing, the linkage piece 61 is driven to move in the guide groove 62, so that the rotation of the rotating shaft of the isolation switch 21 is linked through the cooperation of the guide groove 62 and the linkage piece 61, the on-off of the isolation switch 21 and the static contact 22 is further realized, the isolation switch 2 and the arc extinguish chamber 3 are opened and closed synchronously, and the reliability of the circuit breaker is improved.
As shown in fig. 3 and 5, specifically, the linkage 61 includes a mounting block 611, a linkage block 612, and a driving block 613; the mounting block 611 is mounted at the center of the top of the arc extinguish chamber 3 so as to move up and down along with the arc extinguish chamber 3; one end of the linkage block 612 is mounted at one end of the mounting block 611 deviating from the axis of the arc extinguish chamber 3, and the other end extends towards the isolating switch 2 and is connected with the driving block 613; the driving block 613 is inserted into the guiding groove 62, so that the driving block moves relative to the guiding groove 62 during the lifting movement, and drives the guiding groove 62 to rotate around the axis of the isolating knife switch 21. The arc extinguish chamber 3 drives the mounting block 611 to ascend and descend, so that the mounting block 611 pushes the linkage block 612 to move, and further drives the driving block 613 to slide in the guide groove 62, so that the isolation switch 21 rotates, and opening and closing are realized. Wherein, a abdicating groove 211 for inserting the linkage block 612 is arranged in the rotating shaft of the isolation switch 21; the two guide grooves 62 are symmetrically disposed on the wall of the receding groove 211, so as to provide dual-rail guiding for the two ends of the driving block 613 to be inserted, thereby improving the stability of linkage.
The working principle is as follows: when the circuit breaker rotating shaft 51 rotates, the transmission cam 521 can be driven to rotate, so that the rotating rod 522 slides relatively on the eccentric slide way 5211 of the transmission cam 521, the rotating rod 522 is lifted in the lifting guide groove 422, the connecting rod 523 is driven to move, and the arc extinguish chamber 3 is driven to open and close through the connecting rod 523; when the arc extinguish chamber 3 is opened and closed in the guide sleeve 41, the rotating shaft of the isolation switch 21 is rotated through the cooperation of the linkage piece 61 and the guide groove 62, so that the isolation switch 21 is driven to be switched on and off on the static contact 22, the isolation switch 2 is linked with the arc extinguish chamber 3, the structure is simple, power output is simplified, system stability is improved, the isolation switch 2 and the arc extinguish chamber 3 are ensured to be opened and closed synchronously, the influence of an over-high voltage or an LC loop on a circuit is avoided, and the reliability of the circuit breaker is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (9)
1. An upper isolating circuit breaker comprises a bracket, an isolating switch and an arc extinguish chamber; the isolating switch comprises an isolating switch rotatably mounted on the bracket and a fixed contact arranged on the bracket, and is characterized by also comprising a butt joint frame, a driving mechanism and a linkage structure;
the butt joint frame is arranged on the bracket and is provided with a guide sleeve for the arc extinguish chamber to slide up and down;
the driving mechanism is connected with the arc extinguish chamber and used for driving the arc extinguish chamber to move on the guide sleeve to be opened and closed;
the linkage structure comprises a linkage piece and a guide groove; one end of the linkage piece is fixed at the top of the arc extinguish chamber so as to lift along with the arc extinguish chamber, and the other end of the linkage piece is inserted into the guide groove in a sliding manner; the guide groove is arranged on the rotating shaft of the isolation disconnecting link and extends from the axis of the isolation disconnecting link along the radial direction of the axis of the isolation disconnecting link so as to guide the moving block to drive the rotating shaft of the isolation disconnecting link to rotate when the moving block moves relatively;
the driving mechanism drives the arc extinguish chamber to move up and down to drive the linkage piece to move in the guide groove so as to link the rotary shaft of the isolating switch to rotate through the matching of the guide groove and the linkage piece.
2. The upper isolating circuit breaker according to claim 1, wherein the linkage member includes a mounting block, a linkage block, and a driving block; the mounting block is mounted at the center of the top of the arc extinguish chamber so as to move up and down along with the arc extinguish chamber; one end of the linkage block is arranged at one end of the mounting block deviating from the axis of the arc extinguish chamber, and the other end of the linkage block extends towards the isolating switch and is connected with the driving block; the driving block is inserted in the guide groove to move relative to the guide groove when the driving block is lifted and moved, and the guide groove is driven to rotate around the axis of the isolation disconnecting link.
3. The upper disconnecting circuit breaker according to claim 2, wherein a relief groove for inserting the linkage block is formed in the rotating shaft of the disconnecting switch; the guide grooves are arranged on the groove walls of the abdicating grooves and are symmetrically provided with two guide grooves for the two ends of the driving block to be inserted and connected to provide double-rail guide.
4. The upper isolating circuit breaker according to claim 2, wherein a plurality of limiting grooves surrounding the outer peripheral wall of the arc extinguish chamber are formed at the top of the guide sleeve; the mounting block is provided with a plurality of limiting parts inserted in the limiting grooves so that the mounting block is in rotation-stopping fit with the guide sleeve.
5. The upper isolation circuit breaker of claim 1, wherein the drive mechanism comprises a breaker shaft and a cam assembly; the breaker rotating shaft is connected with the cam assembly so as to rotate on the cam assembly relatively; the cam component is arranged at the bottom of the arc extinguish chamber to convert circumferential rotation into linear movement to drive the arc extinguish chamber to open and close.
6. The upper isolation circuit breaker of claim 5, wherein the cam assembly comprises a drive cam, a rotating lever, and a connecting lever; the transmission cam is arranged on the rotating shaft of the circuit breaker, and an eccentric slideway is arranged at a position deviating from the rotating shaft of the circuit breaker; the rotating rod is arranged on the eccentric slideway in a sliding manner so as to slide relative to the eccentric slideway; the one end of connecting rod is connected in the explosion chamber bottom, and the other end rotates with the dwang to follow the position change of dwang and reciprocate.
7. The upper isolating breaker as claimed in claim 6, wherein the number of the transmission cams is two symmetrical to the axis of the connecting rod and is located at two sides of the connecting rod respectively, so as to use two eccentric sliding ways to allow two ends of the rotating rod to be inserted and connected in a sliding manner respectively.
8. The upper isolating circuit breaker as recited in claim 6, wherein a rotating sleeve sleeved on a rotating shaft of the rotating mechanism is arranged at the bottom of the guide sleeve; the rotating sleeve is provided with a guide convex part for the connecting rod to lift and sleeve the end far away from the arc extinguish chamber.
9. The upper disconnecting switch according to claim 8, wherein the guide protrusion has a lifting guide groove for allowing the rotating rod to slide up and down at a position of the rotating rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273912.6U CN216818195U (en) | 2022-02-10 | 2022-02-10 | Upper isolation circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220273912.6U CN216818195U (en) | 2022-02-10 | 2022-02-10 | Upper isolation circuit breaker |
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| Publication Number | Publication Date |
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| CN216818195U true CN216818195U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220273912.6U Active CN216818195U (en) | 2022-02-10 | 2022-02-10 | Upper isolation circuit breaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116130285A (en) * | 2023-04-20 | 2023-05-16 | 河北上博电气制造有限公司 | Environment-friendly zero-pressure circuit breaker of environment-friendly cabinet |
-
2022
- 2022-02-10 CN CN202220273912.6U patent/CN216818195U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116130285A (en) * | 2023-04-20 | 2023-05-16 | 河北上博电气制造有限公司 | Environment-friendly zero-pressure circuit breaker of environment-friendly cabinet |
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