CN217214618U - Double-breakpoint contact system of switching device - Google Patents
Double-breakpoint contact system of switching device Download PDFInfo
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- CN217214618U CN217214618U CN202121130996.XU CN202121130996U CN217214618U CN 217214618 U CN217214618 U CN 217214618U CN 202121130996 U CN202121130996 U CN 202121130996U CN 217214618 U CN217214618 U CN 217214618U
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- contact
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- spring
- switching device
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Abstract
The utility model relates to the technical field of circuit breakers, and provides a double-breakpoint contact system of a switching device, which comprises a contact support, contact springs and moving contacts, wherein the contact springs are arranged on the inner side and the outer side of the contact support; in the utility model, through being the spacing boss of semi-sphere shape contact embedding in the spacing downthehole of contact, the moving contact has avoided the condition that the upset shifted to take place under the inconsistent condition of contact for the in-process with the static contact, makes movable contact and static contact reliably contact, has effectively improved the stability that the moving contact is connected with the static contact.
Description
Technical Field
The utility model relates to a circuit breaker technical field especially relates to a switching device's two breakpoint contact systems.
Background
The contact system is a current-carrying part system which can break the current of the main conductive loop in the circuit breaker, and the moving contact is a conductive part which is contacted with the main conductive loop and bears the current;
the connection or disconnection of a conductive loop in the circuit breaker is realized through the fact whether a moving contact is in contact with a fixed contact or not, when the existing integrated double-breakpoint moving contact is in contact with the fixed contact, due to the processing technology and the processing precision, the phenomenon that 2 contact points of the moving contact are not in contact with the fixed contact on the same plane and the phenomenon that a single contact point is in contact easily occurs because the phenomenon that the two contact points are inconsistent when the two contact points are in contact with the fixed contact is easily caused, and the existing integrated double-breakpoint moving contact has no compensation function, so that the contact is poor, even the static contact cannot be contacted, and a contact system cannot be normally used.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem existing in the background art, and the integrated double-breakpoint contact system of the switching device.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an integrated double-breakpoint contact system of a switching device comprises a contact support, contact springs and a moving contact, wherein the contact springs are mounted on the inner side and the outer side of the contact support, and the moving contact is mounted at the bottom of each contact spring.
Preferably, the contact support comprises a contact support member, a shaft rod and a contact limiting hole, the contact support member is located in the center of the contact support, the shaft rod is arranged on the left side surface and the right side surface of the contact support member, and the contact limiting hole is located in the middle of the upper surface of the contact support.
Preferably, the moving contact comprises a spring limiting hole, a spring limiting groove and a contact limiting boss, the spring limiting hole penetrates through the lower end of the left surface and the right surface of the moving contact, the upper end of the left surface and the upper end of the right surface of the spring limiting groove are formed, and the boss is located on the upper side of the bottom of the moving contact.
Preferably, one end of the contact spring is an L-shaped cylindrical hook.
Preferably, the contact support is provided in the shape of a "bow".
Preferably, the moving contact is in a concave shape.
Preferably, the contact limiting boss is in a semi-spherical shape.
And a containing groove is formed between the contact support and the contact support, and one end of the moving contact is positioned in the containing groove.
Wherein, the contact spring is sleeved on the shaft lever.
One end of the contact spring is embedded into the spring limiting groove, and one end of the contact spring, which is an L-shaped cylindrical hook, is hooked in the spring limiting hole.
The contact limiting boss is embedded into the contact limiting hole.
Has the advantages that:
in the utility model, the semi-spherical contact limiting boss is embedded into the contact limiting hole, so that the problem of inconsistent contact of the double breakpoints is compensated by the semi-spherical boss of the moving contact in the process of contacting the static contact of the double-breakpoint moving contact, and the connection stability of the integrated double-breakpoint moving contact and the static contact is effectively improved;
secondly, one end of the contact spring is an L-shaped cylindrical hook, when the switch is assembled, one end of the L-shaped cylindrical hook of the contact spring is firmly embedded into the spring limiting hole and is clamped into the spring limiting groove in cooperation with the other end of the contact spring, so that the contact spring is firmly installed on the movable contact, initial pressure and final pressure are provided for contact of the movable contact and the fixed contact, and the contact reliability of the contact is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural view of a middle contact holder according to the present invention;
fig. 3 is a schematic structural view of the middle contact spring of the present invention.
Fig. 4 is a schematic view of the overlooking structure of the middle moving contact of the present invention.
Fig. 5 is a schematic view of the structure of the present invention viewed from the bottom.
Illustration of the drawings: 1-contact support, 101-contact support, 102-shaft rod, 103-contact limit hole, 2-contact spring, 3-moving contact, 301-spring limit hole, 302-spring limit groove, 303-contact limit boss.
Detailed Description
Referring to fig. 1-5, a double-breakpoint contact system of a switching device includes a contact support 1, a contact spring 2 and a moving contact 3, the contact spring 2 is installed on both the inner side and the outer side of the contact support 1, and the moving contact 3 is installed on the bottom of the contact spring 2.
In this embodiment: the contact support 1 comprises a contact support member 101, a shaft 102 and a contact limiting hole 103, wherein the contact support member 101 is located in the center of the contact support 1, the shaft 102 is arranged on the left side surface and the right side surface of the contact support member 101, and the contact limiting hole 103 is located in the middle of the upper surface of the contact support 1.
In this embodiment: the moving contact 3 comprises a spring limiting hole 301, a spring limiting groove 302 and a contact limiting boss 303, wherein the spring limiting hole 301 penetrates through the lower ends of the left surface and the right surface of the moving contact 3, the spring limiting groove 302 is embedded into the upper ends of the left surface and the right surface of the moving contact 3, and the boss 303 is located on the upper side of the bottom of the moving contact 3.
In this embodiment: one end of the contact spring 2 is an L-shaped cylindrical hook.
In this embodiment: the contact support 101 is arcuate;
an accommodating groove is formed between the contact support member 101 and the contact support 1, and one end of the moving contact 3 is located in the accommodating groove, so that the effect of installing the moving contact 3 is achieved.
In this embodiment: the moving contact 3 is in a shape of a Chinese character 'ao', so that the moving contact 3 is conveniently arranged below the contact support 101.
In this embodiment: the contact limiting boss 303 is in a semi-spherical shape, when the contact of the moving contact 3 at the double break points is inconsistent, the contact limiting boss 303 can deflect, compensation is carried out on the contact with a lower contact point, and the effect of reliable contact at the double break points is achieved.
The contact spring 2 is sleeved on the shaft lever 102, one end of the contact spring 2 is embedded in the spring limiting groove 302, and one end of the L-shaped cylindrical hook of the contact spring 2 is hooked in the spring limiting hole 301; so that the contact spring 2 is mounted on the movable contact 3.
The contact limiting boss 303 is embedded in the contact limiting hole 103.
The working principle is as follows:
during installation, the opening of the moving contact 3 is inserted into the contact support 101, the moving contact 3 is rotated, so that the contact limiting boss 303 below the moving contact 3 is positioned right above the contact limiting hole 103, then, one end of the contact spring 2 is embedded into the spring limiting groove 302, one end of the L-shaped cylindrical hook of the contact spring 2 is hooked in the spring limiting hole 301, and then the contact spring 2 is sleeved on the shaft lever 102, so that the installation is completed;
when the double-breakpoint moving contact 3 is in contact with a fixed contact in use, due to the reasons of processing technology and processing precision, the phenomenon of inconsistency of double-breakpoint contact exists, and at the moment, the contact limiting boss 303 at the bottom of the moving contact 3 deflects in the contact limiting hole 103 to compensate the breakpoint at the lower position, so that the double-breakpoint moving contact can be reliably contacted, the reliable contact of products is ensured, and the contact stability is improved.
Claims (7)
1. The utility model provides a switching device's double break point contact system, includes contact carrier (1), contact spring (2) and moving contact (3), its characterized in that: the contact support (1) is internally and externally provided with contact springs (2), and the contact springs (2) are internally provided with moving contacts (3).
2. Double break contact system of a switching device according to claim 1, characterized in that: the contact support (1) comprises a contact support piece (101), a shaft rod (102) and a contact limiting hole (103), wherein the contact support piece (101) is located in the center of the contact support (1), the shaft rod (102) is arranged on the left side surface and the right side surface of the contact support piece (101), and the contact limiting hole (103) is located in the middle of the upper surface of the contact support (1).
3. Double break contact system of a switching device according to claim 1, characterized in that: the moving contact (3) comprises a spring limiting hole (301), a spring limiting groove (302) and a contact limiting boss (303), the spring limiting hole (301) penetrates through the lower ends of the left surface and the right surface of the moving contact (3), the spring limiting groove (302) is embedded into the upper ends of the left surface and the right surface of the moving contact (3), and the boss (303) is located on the upper side of the bottom of the moving contact (3).
4. Double break contact system of a switching device according to claim 1, characterized in that: one end of the contact spring (2) is an L-shaped cylindrical hook.
5. A double break contact system of a switching device according to claim 2, characterized in that: the contact support (101) is arranged in a bow shape.
6. Double break contact system of a switching device according to claim 2, characterized in that: the moving contact (3) is arranged in a concave shape.
7. A double break contact system of a switching device according to claim 3, characterized in that: the contact limiting boss (303) is in a semi-spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121130996.XU CN217214618U (en) | 2021-05-25 | 2021-05-25 | Double-breakpoint contact system of switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121130996.XU CN217214618U (en) | 2021-05-25 | 2021-05-25 | Double-breakpoint contact system of switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217214618U true CN217214618U (en) | 2022-08-16 |
Family
ID=82752401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121130996.XU Active CN217214618U (en) | 2021-05-25 | 2021-05-25 | Double-breakpoint contact system of switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217214618U (en) |
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2021
- 2021-05-25 CN CN202121130996.XU patent/CN217214618U/en active Active
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