CN215265971U - Contact assembly of power switch - Google Patents
Contact assembly of power switch Download PDFInfo
- Publication number
- CN215265971U CN215265971U CN202120892863.XU CN202120892863U CN215265971U CN 215265971 U CN215265971 U CN 215265971U CN 202120892863 U CN202120892863 U CN 202120892863U CN 215265971 U CN215265971 U CN 215265971U
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- contact
- rotating body
- moving contact
- rotator
- groove
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a switch's contact subassembly, including rotatable rotator, moving contact and static contact, a moving contact corresponds two static contacts, and the moving contact is installed on the rotator, and the rotation of rotator orders about the electrically conductive intercommunication that feeds through the realization power of moving contact and two static contacts that correspond, and the one end of rotator is equipped with the transmission groove of non-circular form, and the other end of rotator is equipped with the transmission cooperation piece that matches with this transmission groove. The structure enables the moving contact and the static contact to be in a two-to-two state, when the moving contact and the static contact are contacted and conducted, voltage generated instantly can be dispersed to two contact parts, the intensity of electric arcs is reduced, the operation safety is improved, meanwhile, the rotating body can be correspondingly increased by more poles of different seats, the moving contact is convenient to install, transmission and matching are more convenient, and the reliability of the structure is guaranteed.
Description
Technical Field
The utility model relates to a last part of switch, concretely relates to switch's contact subassembly.
Background
The contact assembly on the power switch generally comprises a fixed contact and a moving contact, the power supply realizes the conductive circulation through the contact of the fixed contact and the moving contact, and the common fixed contact and the moving contact are connected in a one-to-one manner, so that an enlarged electric arc can be generated in a contact manner, certain safety risk exists, and the on-off operation of the power supply is not facilitated.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a power switch contact with high safety and reliable structure.
In order to achieve the above purpose, the utility model provides a following technical scheme: a contact assembly of a power switch comprises a rotatable rotating body, a moving contact and two fixed contacts, wherein the moving contact corresponds to the two fixed contacts, the moving contact is installed on the rotating body, the rotating body rotates to drive the moving contact to be in contact with the two corresponding fixed contacts to be in conductive communication with a power supply, a non-circular transmission groove is formed in one end of the rotating body, and a transmission matching block matched with the transmission groove is arranged at the other end of the rotating body.
The moving contact is two parallel opposite contact strips, an inserting groove is formed between the end parts of the two contact strips, inserting grooves which are in one-to-one correspondence with the contact strips are arranged on the rotating body, compression springs are arranged between the inner wall of each inserting groove and the corresponding contact strip, inserting strips are arranged on the static contact, the rotating body can drive the inserting groove to rotate, and the inserting strips are arranged on the rotating track of the inserting groove.
The two ends of the moving contact are respectively provided with a pressing boss which is circular, the pressing bosses are arranged on two sides of the inner side wall of the insertion groove, the spacing size between the pressing bosses is equal to or smaller than the thickness size of the insertion strip, and the side walls of two sides of the end part of the insertion strip are respectively in an inclined shape.
Arc-extinguishing grids are further arranged at positions close to the static contacts, the arc-extinguishing grids are U-shaped and are sequentially arranged, connecting plates are respectively arranged on two sides of each arc-extinguishing grid, and the peripheral walls of the arc-extinguishing grids are connected onto the connecting plates in a clamping and embedding manner.
The utility model discloses a this kind of structure for moving contact and static contact realize the state of a pair of two, when the contact is electrically conductive, can make the voltage dispersion that produces in the twinkling of an eye to two contact site, have reduced the intensity of electric arc, have improved the security of operation, and the corresponding increase of different seats that the rotator can be more extremely number simultaneously, the convenience of not only moving contact installation makes the transmission more convenient with the cooperation moreover, has guaranteed the reliability of structure.
The invention is further described with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a matching view of the moving contact and the rotating body according to the embodiment of the present invention;
fig. 3 is a perspective view of a fixed contact in an embodiment of the present invention.
Detailed Description
The present invention is described in detail below with reference to the following examples, which are only used for further illustration of the present invention, and should not be construed as limiting the scope of the present invention.
As shown in fig. 1-3, this embodiment discloses a contact assembly of a power switch, which includes a rotatable rotator 1, a movable contact 2 and two fixed contacts 3, the movable contact 2 corresponds to the two fixed contacts 3, the movable contact 2 is mounted on the rotator 1, the rotation of the rotator 1 drives the movable contact 2 to contact and electrically communicate with the two corresponding fixed contacts 3 to realize the conductive communication of a power supply, one end of the rotator 1 is provided with a non-circular transmission groove, and the other end of the rotator 1 is provided with a transmission matching block 12 matched with the transmission groove, so as to facilitate the head-to-tail matching transmission between the rotators, and thus, the number of the fixed contacts can be increased or decreased correspondingly for the rotator 1 and the fixed contacts 3.
Moving contact 2 is two parallel relative feelers 21, form inserting groove 22 between the tip of two feelers 21, be equipped with the interlude groove 10 with feeler 21 one-to-one on rotator 1, it sets up pressure spring to alternate between groove 10 inner wall and the feeler 21, make two feelers 21 be close to each other and make inserting groove 22 elastically flexible through pressure spring, be equipped with cutting 31 on the static contact 3, rotator 1 can drive inserting groove 22 and rotate, one side setting of this cutting 31 is on inserting groove 22's rotation orbit. When the inserting groove 22 and the inserting strip 31 are inserted and matched, the inserting strip 31 can directly enter the inserting groove 22 to be in close contact with the inner wall of the inserting groove 22, and therefore the reliability of power supply conduction is guaranteed.
The both ends at moving contact 2 are equipped with respectively and compress tightly boss 23, compress tightly boss 23 and be circular, compress tightly the inside wall both sides that boss 23 set up inserting groove 22, compress tightly the thickness dimension that interval size between the boss 23 equals or is less than the cutting 31, are the slope form respectively at the tip both sides lateral wall of cutting 31 and are used for making things convenient for leading-in inserting groove 22 in. The pressing boss 23 can improve the pressing force of the contact strip 21 on the insertion strip 31, and the insertion strip 31 and the insertion groove 22 can be matched more conveniently and reliably through the structure.
The arc-extinguishing grille 4 is further arranged at a position close to the static contact 3, the arc-extinguishing grille 4 is U-shaped and is sequentially arranged, the connecting plates 5 are respectively arranged at two sides of the arc-extinguishing grille 4, the peripheral wall of the arc-extinguishing grille 4 is connected onto the connecting plates 5 in a clamping and embedding manner to realize installation, and the end part of the contact strip 21 moves in the U-shaped grooves of the sequentially arranged arc-extinguishing grille 4. The structure is reliable, large electric arc cannot be generated when the power is on, and the operation safety is improved.
By adopting the technical scheme, the moving contact 2 and the static contact 3 are in a two-to-two state, when the contact is conducted, the voltage generated in the moment can be dispersed to two contact parts, the intensity of electric arc is reduced, the operation safety is improved, meanwhile, the rotating body 1 can be correspondingly increased by more different bases, the convenience of installation of the moving contact 2 is improved, the transmission and the matching are more convenient, and the reliability of the structure is ensured.
Claims (4)
1. A contact assembly for a power switch, comprising: the power supply comprises a rotatable rotating body, a movable contact and two fixed contacts, wherein the movable contact corresponds to the two fixed contacts, the movable contact is arranged on the rotating body, the rotation of the rotating body drives the movable contact to be in contact with and in conductive communication with the two corresponding fixed contacts to realize the conductive communication of the power supply, one end of the rotating body is provided with a non-circular transmission groove, and the other end of the rotating body is provided with a transmission matching block matched with the transmission groove.
2. A contact assembly for a power switch according to claim 1, wherein: the moving contact is two parallel opposite contact strips, an inserting groove is formed between the end parts of the two contact strips, inserting grooves which are in one-to-one correspondence with the contact strips are arranged on the rotating body, compression springs are arranged between the inner wall of each inserting groove and the corresponding contact strip, the static contact is an inserting strip, the rotating body can drive the inserting groove to rotate, and the inserting strip is arranged on the rotating track of the inserting groove.
3. A contact assembly of a power switch according to claim 2, characterized in that: the two ends of the moving contact are respectively provided with a pressing boss which is circular, the pressing bosses are arranged on two sides of the inner side wall of the insertion groove, the spacing size between the pressing bosses is equal to or smaller than the thickness size of the insertion strip, and the side walls of two sides of the end part of the insertion strip are respectively in an inclined shape.
4. A contact assembly of a power switch according to claim 2, characterized in that: arc-extinguishing grids are further arranged at positions close to the static contacts, the arc-extinguishing grids are U-shaped and are sequentially arranged, connecting plates are respectively arranged on two sides of each arc-extinguishing grid, and the peripheral walls of the arc-extinguishing grids are connected onto the connecting plates in a clamping and embedding manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120892863.XU CN215265971U (en) | 2021-04-28 | 2021-04-28 | Contact assembly of power switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120892863.XU CN215265971U (en) | 2021-04-28 | 2021-04-28 | Contact assembly of power switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215265971U true CN215265971U (en) | 2021-12-21 |
Family
ID=79511719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120892863.XU Active CN215265971U (en) | 2021-04-28 | 2021-04-28 | Contact assembly of power switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215265971U (en) |
-
2021
- 2021-04-28 CN CN202120892863.XU patent/CN215265971U/en active Active
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