CN214848428U - Contact system and circuit breaker - Google Patents
Contact system and circuit breaker Download PDFInfo
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- CN214848428U CN214848428U CN202120626527.0U CN202120626527U CN214848428U CN 214848428 U CN214848428 U CN 214848428U CN 202120626527 U CN202120626527 U CN 202120626527U CN 214848428 U CN214848428 U CN 214848428U
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- contact
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- circuit breaker
- static
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Abstract
The utility model relates to a circuit breaker technical field especially relates to a contact system and circuit breaker. The contact system comprises a fixed contact and a bridge type contact; the static contact and the bridge contact are both installed in a base of the circuit breaker, the bridge contact is provided with an inner side socket facing the inner side of the base and an outer side socket facing the outer side of the base, the static contact is connected with the inner side socket of the bridge contact in an inserting mode, and the outer side socket of the bridge contact is used for inserting an external conductor. The utility model provides a circuit breaker includes above-mentioned contact system. The utility model provides a contact system and circuit breaker has simplified the operation process that external conductor and static contact are connected greatly, and the connection process is simpler, easily operates, and efficiency is higher, can improve user's experience and feel.
Description
Technical Field
The utility model relates to a moulded case circuit breaker technical field especially relates to a contact system and circuit breaker.
Background
Circuit breakers are commonly used switching devices that are capable of closing, carrying and breaking current in normal or abnormal circuit conditions.
The existing circuit breaker generally comprises a base and a contact system, wherein the contact system comprises a fixed contact and a movable contact, the fixed contact is fixed on the base, the fixed contact is connected with a switching copper bar through a screw, when an external conductor needs to be connected, an insertion type accessory is connected with the external conductor through the screw, then, a petal plug of the insertion type accessory is in compression joint with the switching copper bar, and after the insertion type accessory is in compression joint with the switching copper bar in place, the insertion type accessory is fixed on the base, so that indirect connection between the external conductor and the fixed contact can be achieved, the connection process is complex, the difficulty is high, and the efficiency is low.
In summary, how to overcome the above-mentioned defects of the contact system of the existing circuit breaker is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a contact system and circuit breaker to the connection process that the contact system of alleviating the circuit breaker among the prior art exists is more loaded down with trivial details, and the degree of difficulty is higher, the technical problem of inefficiency.
The utility model provides a contact system, including static contact and bridge type contact.
The static contact with the bridge type contact all install in the base of circuit breaker, the bridge type contact has orientation inboard interface and the orientation of the inboard interface of base the outside interface outside the base, the static contact with the inboard interface grafting of bridge type contact, the outside interface of bridge type contact is used for inserting external conductor.
Preferably, as an embodiment, the bridge contact is detachably connected to the base.
Preferably, as an embodiment, the bridge contact is connected to the base by a first threaded connection.
Preferably, as an implementation manner, the base has a limit groove, the static contact is matched with the limit groove, and two opposite side surfaces of the static contact are respectively abutted against two sides of the limit groove;
and/or the static contact is provided with a bending part, the base is provided with a limiting structure, and one side of the bending part, which faces the bridge-shaped contact, is abutted against the limiting structure.
Preferably, as an implementation manner, the static contact includes three segments along the length direction, which are a contact segment, a connection segment and an insertion segment in sequence.
The base comprises a first base and a second base which are arranged along the depth direction of the circuit breaker, the contact section is positioned in the first base, and the plug-in section is positioned in the second base; or, the base includes a first base, a third base and a second base arranged along the depth direction of the circuit breaker, the contact section is located in the first base, the connection section is located in the third base, and the plug-in section is located in the second base.
Preferably, as an implementation mode, the stationary contact and the base are connected through a second threaded connector.
Preferably, as an implementation manner, the fixed contact includes a contact body and a contact, the contact is welded on the contact body, the contact body is an integrally formed structure, and the contact body is inserted into the bridge contact.
Preferably, as an implementation manner, the fixed contact includes a contact body, a contact and a connection plate, the contact is welded on the contact body, the contact body is connected with the connection plate, the contact body is fixed on the base, and the connection plate is plugged with the bridge contact.
Preferably, as an embodiment, the contact body and the connecting plate are screwed, welded or riveted.
Correspondingly, the utility model also provides a circuit breaker, this circuit breaker includes above-mentioned contact system.
Compared with the prior art, the utility model provides a contact system and circuit breaker's advantage lies in:
the utility model provides a contact system, including static contact and bridge type contact, static contact and bridge type contact are all installed in the base of circuit breaker, and two interfaces of bridge type contact are inboard interface and outside interface respectively, and wherein, the inboard interface of bridge type contact is towards the inboard of base, and the outside interface of bridge type contact is towards the outside of base, and the static contact is pegged graft with the inboard interface of bridge type contact, and the outside interface of bridge type contact is used for inserting external conductor.
During assembly, the bridge-type contact can be installed in the base, then the static contact is inserted into the inner side socket of the bridge-type contact, and the static contact and the base are fixed after the static contact is inserted in place; when the external conductor is connected, the external conductor is directly inserted into the outer side socket of the bridge contact, and then the indirect connection between the external conductor and the static contact can be realized.
It is required to explain, the utility model provides a contact system has simplified the operation process that external conductor and static contact are connected greatly, and the connection process is simpler, easily operates, and efficiency is higher, can improve user's experience and feel.
The utility model provides a circuit breaker, including above-mentioned contact system, the event has all advantages of above-mentioned contact system, and the connection process of outer conductor and static contact is simpler, easily operates, and efficiency is higher, user's experience sense preferred.
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 schematic diagram of a partial cross-sectional structure of a circuit breaker according to an embodiment of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a schematic perspective view of a structure of a static contact in a contact system according to an embodiment of the present invention;
fig. 5 is a schematic partial sectional view of another circuit breaker according to an embodiment of the present invention.
Icon:
100-fixed contact; 110-a contact body; 111-bending part; 120-contacts; 130-a tie plate;
200-bridge type contacts; 210-an internal socket; 220-outer socket;
300-a first base; 310-a limit structure;
400-a second base;
500-a third base;
600-a first threaded connection;
700-second threaded connection.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, 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 "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which 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" and "second" 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.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 to 5, the present embodiment provides a contact system, which includes a fixed contact 100 and a bridge contact 200, where the fixed contact 100 and the bridge contact 200 are both installed in a base of a circuit breaker, two sockets of the bridge contact 200 are an inner socket 210 and an outer socket 220, respectively, where the inner socket 210 of the bridge contact 200 faces the inner side of the base, the outer socket 220 of the bridge contact 200 faces the outer side of the base, the fixed contact 100 is plugged into the inner socket 210 of the bridge contact 200, and the outer socket 220 of the bridge contact 200 is used for inserting an external conductor.
During assembly, the bridge-type contact 200 can be installed in the base, then the static contact 100 is inserted into the inner side socket 210 of the bridge-type contact 200, and after the static contact 100 is inserted in place, the static contact 100 and the base are fixed with each other; when connecting an external conductor, the external conductor is directly inserted into the outer socket 220 of the bridge contact 200, so that the external conductor and the static contact 100 can be indirectly connected.
It should be noted that the contact system provided in this embodiment greatly simplifies the operation process of connecting the external conductor and the static contact 100, and the connection process is simple, easy to operate and high in efficiency, and can improve the experience of the user.
Preferably, the bridge contact 200 is detachably connected to the base, so that the bridge contact 200 can be detached from the base for maintenance, replacement or other operations when the bridge contact 200 is broken or otherwise needs to be removed, and the operability is high.
Specifically, referring to fig. 1 and 3, the bridge contact 200 may be connected to the base through the first threaded connection 600, so that the bridge contact 200 may be detachably connected to the base, and the threaded connection may have high stability, so that the bridge contact 200 is not easily shaken after being mounted on the base.
Preferably, the two sides of the bridge contact 200 are respectively connected by two first threaded connection members 600 to improve the force balance of the bridge contact 200, so that the bridge contact 200 is not prone to tilt or shake, and the bridge contact 200 is not prone to damage due to unbalanced force.
Specifically, the first threaded connections 600 on both sides of the bridge contact 200 may be symmetrically disposed.
Preferably, referring to fig. 1, a limit groove may be disposed on the base, so that the limit groove is matched with the static contact 100, and two opposite side surfaces of the static contact 100 are respectively abutted to two sides of the limit groove, so that the limit groove can limit the position of the static contact 100 from two sides of the static contact 100, and thus the static contact 100 can pass through the limit groove and be more smoothly inserted into the inner socket 210 of the bridge contact 200, and the static contact 100 is not easily deformed, and in addition, after the assembly is completed, the static contact 100 is not easily shaken, and the static contact 100 and the bridge contact 200 can maintain a good contact state for a long time.
Referring to fig. 1, 2 and 5, a bending portion 111 may be disposed in a specific structure of the static contact 100, and correspondingly, a limiting structure 310 is disposed on the base, and the limiting structure 310 abuts against a side of the bending portion 111 facing the bridge-type contact 200, so that it can be determined whether the static contact 100 is inserted in place through the limiting structure 310, and the bending portion 111 does not impact the bridge-type contact 200 due to being inserted in place during the process of inserting the bridge-type contact 200.
Specifically, referring to fig. 1 and 5, the stationary contact 100 includes three segments along its length, namely, a contact segment (i.e., a portion having the contact 120), a connection segment, and a plug segment (i.e., a portion for plugging with the bridge contact 200).
As an implementation manner, the base includes two parts, namely a first base 300 and a second base 400, which are sequentially arranged along the depth direction of the circuit breaker, in this case, the contact section of the static contact 100 is located in the first base 300, and the plug section of the static contact 100 and the bridge contact 200 are both located in the second base 400.
As another possible implementation manner, the base includes a first base 300, a third base 500, and a second base 400 sequentially arranged along the depth direction of the circuit breaker, at this time, a contact section of the static contact 100 is located in the first base 300, a connection section of the static contact 100 is located in the third base 500, and an insertion section of the static contact 100 and the bridge-type contact 200 are both located in the second base 400.
It should be noted that, an instrument transformer may be installed in the third base 500.
Referring to fig. 1 and 2, the static contact 100 may be connected to the base by a second threaded connector 700, so that the static contact 100 may be fixed by the second threaded connector 700.
After the static contact 100 is inserted in place along the limiting groove, the static contact 100 is locked on the base by the second threaded connector 700, and then the static contact 100 can be fixed.
As an implementation manner, referring to fig. 1 to 4, a contact body 110 and a contact 120 are provided in a specific structure of a static contact 100, wherein the contact 120 is welded on the contact body 110, the contact body 110 is an integrally formed structure, and the contact body 110 can also be in plug-in fit with a bridge-type contact 200, so that the static contact 100 itself does not need to be assembled, and the structural stability of the static contact 100 is conveniently ensured.
Specifically, the contact body 110 may be provided as an L-shaped plate-like structure.
As another possible implementation manner, referring to fig. 5, in a specific structure of the static contact 100, a contact body 110, a contact 120 and a linking plate 130 are provided, the contact 120 is welded on the contact body 110, the contact body 110 is connected with the linking plate 130, and the linking plate 130 is plugged into the bridge contact 200, so that the contact body 110 is connected with the bridge contact 200 through the linking plate 130.
Specifically, referring to fig. 5, the contact body 110 includes a portion of the contact section and a portion of the junction section, and the junction plate 130 includes a portion of the junction section and a portion of the plug section, such that the contact body 110 is located in the first base 300 and the second base 400 of the circuit breaker, and the junction plate 130 is located in the second base 400 and the third base 500 of the circuit breaker.
Specifically, the contact body 110 and the linking plate 130 may be connected by any one of three connection methods, i.e., screwing, welding, and riveting, but may be connected by other methods as long as the contact body 110 and the linking plate 130 are relatively fixed.
In either case, the contact body 110 may be soldered with silver dots as the contacts 120.
The embodiment also provides a circuit breaker, which comprises the contact system.
Therefore, the utility model provides a circuit breaker has all advantages of above-mentioned contact system, and the connection process of external conductor and static contact 100 is simpler, easily operates, and efficiency is higher, and user's experience feels the preferred.
To sum up, the utility model discloses a contact system and circuit breaker, its a great deal of technical defect who has overcome the contact system of traditional circuit breaker. The contact system and the circuit breaker provided by the embodiment have the advantages that the connection process of the external conductor and the static contact 100 is simple, the operation is easy, the efficiency is high, and the experience of a user is better.
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 system, characterized by comprising a stationary contact (100) and a bridge contact (200);
the static contact (100) and the bridge contact (200) are installed in a base of the circuit breaker, the bridge contact (200) is provided with an inner side socket (210) facing the inner side of the base and an outer side socket (220) facing the outer side of the base, the static contact (100) is plugged with the inner side socket (210) of the bridge contact (200), and the outer side socket (220) of the bridge contact (200) is used for inserting an external conductor.
2. Contact system according to claim 1, characterized in that the bridge contact (200) is detachably connected to the base.
3. Contact system according to claim 2, wherein the bridge contact (200) is connected to the base by a first threaded connection (600).
4. The contact system according to claim 1, wherein the base has a limiting groove, the stationary contact (100) is engaged with the limiting groove, and two opposite side surfaces of the stationary contact (100) are respectively abutted against two sides of the limiting groove;
and/or the static contact (100) is provided with a bending part (111), the base is provided with a limiting structure (310), and one side of the bending part (111) facing the bridge-type contact (200) is abutted against the limiting structure (310).
5. The contact system according to claim 1, wherein the stationary contact (100) comprises three segments along the length direction, in order of a contact segment, a connection segment and an insertion segment;
the base comprises a first base (300) and a second base (400) which are sequentially arranged along the depth direction of the circuit breaker, the contact section is positioned in the first base (300), and the plug section and the bridge contact (200) are both positioned in the second base (400); or, the base includes first base (300), third base (500) and second base (400) that arrange in proper order along the depth direction of circuit breaker, the contact section is located in first base (300), the linkage section is located in third base (500), the grafting section with bridge type contact (200) all are located in second base (400).
6. Contact system according to claim 1, wherein the stationary contact (100) is connected to the base by a second threaded connection (700).
7. The contact system according to any one of claims 1 to 6, wherein the stationary contact (100) comprises a contact body (110) and a contact (120), the contact (120) is welded to the contact body (110), the contact body (110) is an integrally formed structure, and the contact body (110) is plugged with the bridge contact (200).
8. The contact system according to any one of claims 1 to 6, wherein the stationary contact (100) comprises a contact body (110), a contact (120) and a linking plate (130), the contact (120) is welded to the contact body (110), the contact body (110) is connected to the linking plate (130), and the linking plate (130) is plugged into the bridge contact (200).
9. Contact system according to claim 8, wherein the contact body (110) and the linking plate (130) are screwed, welded or riveted.
10. A circuit breaker comprising a contact system according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626527.0U CN214848428U (en) | 2021-03-26 | 2021-03-26 | Contact system and circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120626527.0U CN214848428U (en) | 2021-03-26 | 2021-03-26 | Contact system and circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214848428U true CN214848428U (en) | 2021-11-23 |
Family
ID=78760312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120626527.0U Active CN214848428U (en) | 2021-03-26 | 2021-03-26 | Contact system and circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214848428U (en) |
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2021
- 2021-03-26 CN CN202120626527.0U patent/CN214848428U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |