CN214848423U - Contact connecting device and circuit breaker - Google Patents
Contact connecting device and circuit breaker Download PDFInfo
- Publication number
- CN214848423U CN214848423U CN202120626175.9U CN202120626175U CN214848423U CN 214848423 U CN214848423 U CN 214848423U CN 202120626175 U CN202120626175 U CN 202120626175U CN 214848423 U CN214848423 U CN 214848423U
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- Prior art keywords
- contact
- base
- support
- gap
- connection
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- Withdrawn - After Issue
Links
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052802 copper Inorganic materials 0.000 abstract description 20
- 239000010949 copper Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model belongs to the technical field of the circuit breaker technique and specifically relates to a contact connecting device and circuit breaker are related to. The utility model provides a contact connecting device, include: a contact, a bracket and a base; the contact is fixedly connected to the support, the support is connected to the base, and the support can move relative to the base, so that the position of the support can be adjusted. The support can be for the base motion, and contact fixed connection is in leg joint, makes the contact can with support synchronous motion, because the contact can move, can cooperate outside copper bar by oneself to adjust the position, makes outside copper bar be located the center of contact, has increased the effective area of contact of outside copper bar and contact, has improved electric conductive property, has avoided simultaneously to have the high temperature that the deviation leads to because of contact and copper bar central positioning behind the circular telegram, has improved the security.
Description
Technical Field
The utility model belongs to the technical field of the circuit breaker technique and specifically relates to a contact connecting device and circuit breaker are related to.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a fault current under an abnormal circuit condition for a predetermined time. The circuit breaker generally comprises a contact system, an arc extinguishing system, an operating mechanism, a release, a plastic shell and the like, and can be divided into a frame type circuit breaker (also called a universal circuit breaker) and a plastic shell type circuit breaker according to the structure.
The plastic shell circuit breaker uses a plastic insulator as a shell of the circuit breaker, and a contact, an arc extinguish chamber, a release, an operating system and the like are all arranged in the plastic shell, so that the interphase insulation and the isolation from a conductor are easy to realize. The molded case circuit breaker has the characteristics of compact structure, small volume, light weight and the like, and is widely applied to industrial production and families.
The contact of most present moulded case circuit breaker products all adopts bridge type contact, one end is connected with the inside copper bar of moulded case circuit breaker product, the other end is connected with outside copper bar, because installer misoperation when the installation, when making outside copper bar connect on bridge type contact, the central location has the deviation, the effective area of contact at actual electric connection in-process of bridge type contact has been reduced greatly, electric conductive property has been influenced, easily make bridge type contact generate heat after the circular telegram simultaneously, lead to bridge type contact to burn out and cause the power supply accident.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a contact connecting device and circuit breaker to when solving outside copper bar and contact and being connected, the central point location has the technical problem of deviation.
The utility model provides a contact connecting device, which comprises a contact, a bracket and a base;
the contact is fixedly connected with the support, the support is connected with the base, and the support can move relative to the base, so that the position of the support can be adjusted.
As a further technical scheme, the device further comprises a limiting piece, and the bracket is detachably connected to the base through the limiting piece;
the limiting piece is used for limiting the movement space of the support so that the support can move in the movement space.
As a further technical solution, a first gap is formed between the base and the limiting member, and a second gap is formed between the bracket and the limiting member;
the first gap is positioned on a first plane, the second gap is positioned on a second plane, and the first plane and the second plane are perpendicular to each other;
the first gap and the second gap form the movement space.
As a further technical scheme, the bracket is provided with a through hole, the limiting member is arranged in the through hole in a penetrating manner, and the second gap is formed between the limiting member and the inner wall of the through hole.
As a further technical solution, the base includes a first base body and a second base body corresponding to each other, the first base body and the second base body are both connected with the limiting member, and a third gap is provided between the first base body and the second base body;
the contact is inserted into the third gap.
As a further technical scheme, the contact comprises an inner connecting section and an outer connecting section, the support is arranged between the inner connecting section and the outer connecting section, and the inner connecting section is inserted into the third gap;
along the inserting direction of the internal connecting section, the first seat body and the second seat body are arranged on the rear side of the bracket;
the first base body is positioned on the upper side of the internal connecting section, and the second base body is positioned on the lower side of the internal connecting section.
As a further technical solution, the base is provided with a connecting piece, and the limiting piece is connected with the base through the connecting piece;
the limiting part is detachably connected to the connecting piece.
As a further technical solution, the connecting piece is provided with a connecting groove, the locating part include with connecting groove matched with connecting portion, connecting portion set up in the connecting groove, and with the connecting groove is connected.
As a further technical solution, the base is provided with a mounting groove, and the connecting member is disposed in the mounting groove.
The utility model provides a pair of circuit breaker, include contact connecting device.
Compared with the prior art, the utility model provides a pair of technical advantage that contact connecting device has does:
the utility model provides a contact connecting device, include: a contact, a bracket and a base; the contact is fixedly connected to the support, the support is connected to the base, and the support can move relative to the base, so that the position of the support can be adjusted.
The support can be for the base motion, and contact fixed connection is in leg joint, makes the contact can with support synchronous motion, because the contact can move, can cooperate outside copper bar by oneself to adjust the position, makes outside copper bar be located the center of contact, has increased the effective area of contact of outside copper bar and contact, has improved electric conductive property, has avoided simultaneously to have the high temperature that the deviation leads to because of contact and copper bar central positioning behind the circular telegram, has improved the security.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a cross-sectional view of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of another angle of a circuit breaker according to an embodiment of the present invention;
fig. 3 is an enlarged view of a point a in fig. 2 according to an embodiment of the present invention.
Icon: 1-a contact; 2-a scaffold; 3-a base; 4-a limiting member; 5-a first limiting part; 6-a second limiting part; 7-a connecting part; 8-a connector; 9-connecting groove; 10-a first gap; 11-a second gap; 12-a third gap; 13-fixed structure.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
The specific structure is shown in fig. 1 to 3.
The present embodiment provides a contact connecting device, including: the contact 1, the bracket 2 and the base 3;
the contact 1 is fixedly connected to the support 2, the support 2 is connected to the base 3, and the support 2 is movable relative to the base 3 so that the support 2 can be adjusted in position.
In this embodiment, contact 1 is the bridge type structure, and include a plurality of contact units, support 2 is with a plurality of contact unit connection and fixed, the preferred copper product of contact unit is made, also can be other conducting material and make, support 2 can move for base 3, 1 fixed connection of contact is connected in support 2, make contact 1 can with support 2 simultaneous movement, because contact 1 can move, can cooperate outside copper bar by oneself to carry out adjusting position, make outside copper bar be located the center of contact 1, the effective area of contact of outside copper bar with contact 1 has been increased, the electric conductivity has been improved, avoided simultaneously to have the high temperature that the deviation leads to because of contact 1 and copper bar central positioning after the circular telegram, the security has been improved.
In this embodiment, be provided with the location boss unit that is used for the fixed contact unit in interval on the support 2, location boss unit comprises the symmetry sets up the location boss in support 2 both sides, and the location boss is provided with the multiunit for all be provided with the location boss between the contact unit, thereby make contact 1 radiating effect and electric conductivity better. Through add the location boss on support 2 for keep having certain clearance between the contact unit, not only improved heat dispersion, and reduced the frictional force between the contact unit, be favorable to improving the flexibility and the electric conductive property of contact unit.
In an optional technical solution of this embodiment, the device further includes a limiting member 4, and the bracket 2 is detachably connected to the base 3 through the limiting member 4;
the limiting member 4 is used for limiting the movement space of the bracket 2 so that the bracket 2 moves in the movement space.
In this embodiment, a movement space is formed between the limiting member 4 and the base 3, or a movement space is formed between the limiting member 4 and the base 3 and between the limiting member 4 and the bracket 2, and the bracket 2 moves in the movement space by the limiting function of the limiting member 4.
In an optional technical solution of this embodiment, a first gap 10 is formed between the base 3 and the limiting member 4, and a second gap 11 is formed between the bracket 2 and the limiting member 4;
the first gap 10 is located on a first plane, the second gap 11 is located on a second plane, and the first plane and the second plane are perpendicular to each other;
the first gap 10 and the second gap 11 form a movement space.
Among the optional technical scheme of this embodiment, locating part 4 is spacing cover, spacing cover is connected with base 3, and be formed with between spacing cover and the base 3 and hold the chamber, support 2 and contact 1 set up in holding the intracavity, spacing cover includes roof and bounding wall, the roof is relative with base 3, be formed with first clearance 10 between base 3 and the roof, be formed with second clearance 11 between support 2 and the bounding wall, support 2 can be at first clearance 10 and the internal motion of second clearance 11, when outside copper bar is connected with contact 1, contact 1 can be at the internal motion of primary importance and secondary importance, the adjustment range is big, the outside copper bar of cooperation that can be better, make its center location more accurate.
In the optional technical scheme of this embodiment, locating part 4 is the gag lever post, the gag lever post is provided with a plurality ofly, a plurality of gag lever posts enclose and establish around support 2 and contact 1, the gag lever post includes straightway and bending segment, the one end of straightway is connected in base 3, the other end extends to one side and buckles, form the L shape gag lever post, or extend to both sides and buckle and form T shape gag lever post, the bending segment of gag lever post is first spacing portion 5, the straightway includes second spacing portion 6, second spacing portion 6 is located between the surface of base 3 and first spacing portion 5, be provided with first clearance 10 between base 3 and the first spacing portion 5, be provided with second clearance 11 between support 2 and the second spacing portion 6, so, can reach the advantage and the effect that above-mentioned embodiment has equally, here is no longer.
In this embodiment, the gag lever post sets up to four, and is located four positions about the upper and lower of support 2 and contact 1 respectively, so can play spacing effectual, overall structure is pleasing to the eye again, material saving.
It should be noted that the limiting rods are not limited to four, and may be other numbers meeting the limiting requirement.
In the optional technical scheme of this embodiment, the bracket 2 is provided with a through hole, the limiting member 4 is inserted into the through hole, and a second gap 11 is formed between the limiting member 4 and the inner wall of the through hole.
In this embodiment, when a through hole is formed in the bracket 2, the limiting member 4 is a limiting rod, the limiting rod is one, the second limiting portion 6 of the limiting rod passes through the through hole in the bracket 2 to be connected with the base 3, a first gap 10 is formed between the base 3 and the first limiting portion 5, a second gap 11 is formed between the second limiting portion 6 and the hole wall of the through hole, the bracket 2 moves in the first gap 10, the second limiting portion 6 moves relative to the bracket 2 in the second gap 11, the limiting is performed through the limiting rod, and meanwhile, the bracket 2 is connected to the base 3.
In this embodiment, when having seted up a plurality of through-holes on the support 2, the quantity of gag lever post and the quantity phase-match of through-hole wear to be equipped with a plurality of gag lever posts on the support 2, make firm in connection between support 2 and the base 3, can restrict the rotation angle of support 2 simultaneously, be favorable to accurate central positioning.
The preferred of this embodiment, contact 1 is located the middle part of support 2, and the upper and lower both sides of support 2 respectively are provided with a through-hole, and the gag lever post is all worn to be equipped with by upper and lower through-hole, simple structure, and overall structure is pleasing to the eye.
In this embodiment, spacing portion 6 of second is cylindricly, and the through-hole is the round hole, and the diameter of round hole is greater than the diameter of spacing portion 6 of second, and cylinder and round hole cooperation, contact 1 are equal at the ascending range of motion of circumference, and with the better cooperation of outside copper bar, the adjustment location of being convenient for. However, the second stopper portion 6 and the through hole of the present embodiment are not limited to this shape, and the through hole may be a square hole, a triangular hole, a polygonal hole, or the like, and the cross-sectional shape of the second stopper portion 6 may be a square, a triangle, a polygon, or the like.
In an optional technical solution of this embodiment, the base 3 includes a first base body and a second base body corresponding to each other, the first base body and the second base body are both connected with a limiting member 4, and a third gap 12 is provided between the first base body and the second base body;
the contact 1 is inserted in the third gap 12.
In this embodiment, the contact 1 is inserted into the third gap 12, and the size of the third gap 12 can limit the rotation angle of the contact 1, and the overall structure is compact.
In the optional technical solution of this embodiment, the contacts 1 are all located in the third gap 12, the first base is located on the upper side of the support 2, the second base is located on the lower side of the support 2, the upper side of the support 2 is connected to the first base through the limiting member 4, the lower side is also connected to the second base through the limiting member 4, and the limiting member 4 is U-shaped or annular and can be matched with the through hole.
In an optional technical scheme of this embodiment, the contact 1 includes an internal connection section and an external connection section, the support 2 is disposed between the internal connection section and the external connection section, and the internal connection section is inserted into the third gap 12;
along the insertion direction of the internal connection section, the first seat body and the second seat body are both arranged at the rear side of the bracket 2;
the first seat body is positioned at the upper side of the internal connecting section, and the second seat body is positioned at the lower side of the internal connecting section.
In an optional technical solution of this embodiment, the base 3 is provided with a connecting member 8, and the limiting member 4 is connected to the base 3 through the connecting member 8;
the limiting part 4 is detachably connected to the connecting part 8.
In this embodiment, the limiting member 4 is connected to the base 3 through the connecting member 8 on the base 3, and the structure is simple and the connection is convenient.
In the optional technical solution of this embodiment, the connecting member 8 is provided with the connecting groove 9, and the limiting member 4 includes the connecting portion 7 matched with the connecting groove 9, and the connecting portion 7 is disposed in the connecting groove 9, and is connected with the connecting groove 9.
In this embodiment, the connecting member 8 and the connecting groove 9 are separate parts, and the connecting groove 9 is fixed on the surface of the connecting member 8, so that the connecting groove 9 is convenient to disassemble and maintain; or the surface of the connecting piece 8 far away from one side of the base 3 is inwards sunken to form the connecting groove 9, the connecting groove is integrally formed, the manufacturing is convenient, the integrity is strong, and meanwhile, the connecting groove 9 is an inner groove of the connecting piece 8, and the structure is stable.
The straightway of gag lever post still includes connecting portion 7, and spacing portion 6 of second is located the one side that is close to first spacing portion 5, and connecting portion 7 is located the one side of keeping away from first spacing portion 5, and connecting portion 7 meets with spacing portion 6 of second, and connecting portion 7 all is located spread groove 9.
In this embodiment, the surface of connecting portion 7 and the inner wall of spread groove 9 all are provided with the screw thread, and connecting portion 7 passes through the screw thread with spread groove 9 and can dismantle the connection, simple structure, and it is stable and convenient to connect. But not limited thereto, the connecting portion 7 and the connecting groove 9 may be detachably connected through a snap structure, a pin hole structure, or a magnetic attraction.
In the optional technical scheme of this embodiment, base 3 is provided with the mounting groove, and connecting piece 8 sets up in the mounting groove.
In the embodiment, the base 3 and the installation groove are respectively independent parts, and the installation groove is fixed on the surface of the base 3, so that the installation groove is convenient to disassemble and maintain; or the surface of base 3 to the inside sunken mounting groove that forms of base 3, integrated into one piece, the manufacturing of being convenient for, and the wholeness is strong, and the mounting groove is 3 inner groovies of base, stable in structure simultaneously.
In this embodiment, 8 all are located the mounting groove of connecting piece, and the notch of mounting groove is higher than connecting piece 8, or 8 protrusion in the notch of mounting groove of connecting piece, or the notch and the 8 parallel and level of connecting piece of mounting groove.
In this embodiment, be provided with fixed knot structure 13 between mounting groove and the connecting piece 8, make connecting piece 8 can fix in the mounting groove, fixed knot structure 13 can be buckle structure, pinhole structure, helicitic texture or magnetism inhale etc. makes connecting piece 8 not produce circumferential motion in the mounting groove, and is whole stable.
Preferably, the shape and size of the installation groove and the connecting piece 8 are matched, the connecting piece 8 is inserted into the installation groove, and the connecting piece 8 is fixed on the groove wall of the installation groove.
This embodiment is preferred, locating part 4 is the screw, the screw includes integrated into one piece's nut, the screw rod and be located the smooth pole between nut and the screw rod, the nut is first spacing portion 5 promptly, the smooth rod is spacing portion 6 of second, the diameter of smooth pole is greater than the diameter of screw rod, connecting piece 8 is the embedded nut, the screw of embedded nut is spread groove 9 promptly, when the screw rod is whole to be twisted into the screw of embedded nut, the tip of smooth rod offsets with the embedded nut, so that be formed with first clearance 10 between support 2 and the base 3, and the width of first clearance 10 is the length of smooth rod.
The circuit breaker provided by the embodiment comprises the contact connecting device, and therefore the technical advantages and effects achieved by the circuit breaker comprise the technical advantages and effects achieved by the contact connecting device, and are not repeated here.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A contact connecting device, comprising: the device comprises a contact (1), a support (2) and a base (3);
the contact (1) is fixedly connected with the support (2), the support (2) is connected with the base (3), and the support (2) can move relative to the base (3) so that the support (2) can adjust the position.
2. The contact connecting device according to claim 1, characterized in that it further comprises a stopper (4), the holder (2) being detachably connected to the base (3) via the stopper (4);
the limiting piece (4) is used for limiting the movement space of the support (2) so that the support (2) can move in the movement space.
3. The contact connection device according to claim 2, characterized in that a first gap (10) is formed between the base (3) and the stop (4), and a second gap (11) is formed between the carrier (2) and the stop (4);
the first gap (10) is positioned on a first plane, the second gap (11) is positioned on a second plane, and the first plane and the second plane are perpendicular to each other;
the first gap (10) and the second gap (11) form the movement space.
4. A contact connection device according to claim 3, characterized in that the holder (2) is provided with a through hole, the stop element (4) is arranged through the through hole, and the second gap (11) is formed between the stop element (4) and an inner wall of the through hole.
5. A contact connecting device according to claim 2, characterized in that the base (3) comprises a first seat and a second seat corresponding to each other, the first seat and the second seat are connected with the retaining member (4), and a third gap (12) is provided between the first seat and the second seat;
the contact (1) is inserted into the third gap (12).
6. The contact connection device according to claim 5, characterized in that the contact (1) comprises an inner section and an outer section, the carrier (2) being arranged between the inner section and the outer section, the inner section being interposed in the third gap (12);
along the insertion direction of the internal connection section, the first seat body and the second seat body are both arranged at the rear side of the bracket (2);
the first base body is positioned on the upper side of the internal connecting section, and the second base body is positioned on the lower side of the internal connecting section.
7. Contact connection device according to any of claims 2-6, characterized in that the base (3) is provided with a connection piece (8), the stop (4) being connected to the base (3) via the connection piece (8);
the limiting part (4) is detachably connected to the connecting piece (8).
8. A contact connection arrangement according to claim 7, characterized in that the connection piece (8) is provided with a connection slot (9), and the retaining piece (4) comprises a connection portion (7) cooperating with the connection slot (9), the connection portion (7) being arranged in the connection slot (9) and being connected to the connection slot (9).
9. Contact connection device according to claim 7, characterized in that the base (3) is provided with a mounting groove, in which the connecting piece (8) is arranged.
10. A circuit breaker, characterized in that it comprises a contact-connection device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626175.9U CN214848423U (en) | 2021-03-26 | 2021-03-26 | Contact connecting device and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626175.9U CN214848423U (en) | 2021-03-26 | 2021-03-26 | Contact connecting device and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848423U true CN214848423U (en) | 2021-11-23 |
Family
ID=78760345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120626175.9U Withdrawn - After Issue CN214848423U (en) | 2021-03-26 | 2021-03-26 | Contact connecting device and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848423U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132533A (en) * | 2021-03-26 | 2022-09-30 | 上海良信电器股份有限公司 | Contact connecting device and circuit breaker |
-
2021
- 2021-03-26 CN CN202120626175.9U patent/CN214848423U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115132533A (en) * | 2021-03-26 | 2022-09-30 | 上海良信电器股份有限公司 | Contact connecting device and circuit breaker |
| CN115132533B (en) * | 2021-03-26 | 2024-09-20 | 上海良信电器股份有限公司 | Contact connecting device and circuit breaker |
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Granted publication date: 20211123 Effective date of abandoning: 20240920 |