CN217847832U - Contact structure for relay - Google Patents
Contact structure for relay Download PDFInfo
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- CN217847832U CN217847832U CN202221432819.1U CN202221432819U CN217847832U CN 217847832 U CN217847832 U CN 217847832U CN 202221432819 U CN202221432819 U CN 202221432819U CN 217847832 U CN217847832 U CN 217847832U
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Abstract
The utility model relates to a contact structure for relay, it includes that the owner touches subassembly, push rod subassembly, magnetic conduction piece and main spring, the owner touches the subassembly include a plurality of stationary contacts and with the movable contact spring of stationary contact face contact, movable contact spring is connected with the catch bar subassembly, the catch bar subassembly includes the insulating cover, mount and the push rod of a body coupling, the one end that the magnetic conduction piece is close to the mount will the movable contact spring is fixed, the magnetic conduction piece is kept away from install the main spring between the one end of mount and the insulating cover. The utility model discloses a set up the contact between stationary contact and the movable contact spring into the face contact, the one end that the stationary contact is close to the movable contact spring has two at least faces or the movable contact spring one end that is close to the stationary contact has two at least faces simultaneously, and it can realize the electric current reposition of redundant personnel, makes the electric current of flowing through the movable contact spring reduce the half for former electric current at least, and then effectively reduces the electric repulsion that the heavy current passes through the production, improves contact stability.
Description
Technical Field
The utility model relates to a relay equipment technical field especially relates to a contact structure for relay.
Background
A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. The relay has an interactive relation between a control system and a controlled system, is usually applied to an automatic control circuit, and actually is an 'automatic switch' for controlling the operation of a large current by using a small current, so that the relay plays roles of automatic adjustment, safety protection, circuit conversion and the like in the circuit.
At present, the short-circuit resistance current of a high-voltage direct-current relay exceeds a rated current level, and when the short-circuit current passes through a static contact, electric repulsion force generated between the static contact and the dynamic contact can cause the contact to be repelled, so that severe arcing is caused, and the relay is disabled. Therefore, it is urgently required to design a new structure so that it can reduce the electric repulsive force and prevent the contact from being repelled.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a contact structure for a relay to solve one or more problems of the prior art.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a contact structure for relay includes that the owner touches subassembly, push rod subassembly, magnetic conductive block and main spring, the owner touch the subassembly include a plurality of stationary contacts and with the movable contact spring of stationary contact surface contact, movable contact spring is connected with the push rod subassembly, the push rod subassembly includes insulating cover, mount and the push rod of a body coupling, the one end that the magnetic conductive block is close to the mount will the movable contact spring is fixed, the magnetic conductive block is kept away from install the main spring between the one end of mount and the insulating cover.
Furthermore, one end of the static contact close to the movable spring piece is provided with at least two surfaces which are contacted with the movable spring piece.
Furthermore, a single groove is formed in one end, close to the movable spring, of the static contact.
Furthermore, one end of the static contact close to the movable reed is provided with a plurality of grooves.
Further, when the stationary contact has a plurality of slots, adjacent slots are cross-connected.
Further, when the stationary contact has a plurality of slots, adjacent slots are not cross-connected.
Further, the intersections between adjacent grooves are right-angle intersections.
Further, the intersection between adjacent grooves is a non-right-angle intersection.
Furthermore, one end of the movable spring plate close to the static contact has at least two surfaces which are contacted with the static contact.
Furthermore, two ends of the movable spring plate are respectively provided with at least one opening, and each end of the movable spring plate is separated into at least two petals by the openings.
Compared with the prior art, the utility model discloses a beneficial technological effect as follows:
the utility model discloses a contact setting between stationary contact and the movable contact spring is the face contact, the one end that the stationary contact is close to the movable contact spring has two at least faces or the movable contact spring one end that is close to the stationary contact has two at least faces simultaneously, it can realize the current shunting, the electric current that makes the movable contact spring of flowing through reduces the half that is former electric current at least, and the electronic repulsion between static contact and the movable contact spring can reduce the half that is former electronic repulsion at least, and then effectively reduce the electronic repulsion that the heavy current passes through the production, improve the contact stability.
Drawings
Fig. 1 shows a schematic structural diagram of a contact structure for a relay according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a stationary contact in a contact structure for a relay according to an embodiment of the present invention.
Fig. 3 shows a schematic structural diagram of a contact structure for a relay according to another embodiment of the present invention.
Fig. 4 shows a schematic structural diagram of a stationary contact in a contact structure for a relay according to another embodiment of the present invention.
Fig. 5 shows a schematic structural diagram of a stationary contact and a movable contact in a contact structure for a relay according to a third embodiment of the present invention.
Fig. 6 shows a schematic diagram of a contact structure for a relay according to another embodiment of the present invention.
In the drawings, the reference numbers: 1. a stationary contact; 101. a groove; 2. a movable spring plate; 200. an opening; 3. a magnetic conduction block; 4. a fixed mount; 5. a main spring; 6. an insulating sleeve; 7. a yoke iron plate; 8. a push rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the contact structure for a relay according to the present invention is described in detail with reference to the accompanying drawings and the following detailed description. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. To make the objects, features and advantages of the present invention more comprehensible, please refer to the attached drawings. It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential technical meaning, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.
The first embodiment is as follows:
as shown in fig. 1, a contact structure for a relay includes a main contact assembly, a push rod assembly, a magnetic conduction block 3 and a main spring 5, where the main contact assembly includes a plurality of stationary contacts 1 and a movable contact strip 2 used in cooperation with the stationary contacts 1, in the first embodiment, the movable contact strip 2 is a planar structure, and one end of the stationary contact 1 close to the movable contact strip 2 has at least two surfaces to contact with the movable contact strip 2. The push rod assembly comprises an insulating sleeve 6, a fixing frame 4 and a push rod 8 which are integrally connected, wherein the push rod 8 penetrates through a yoke iron plate 7, the insulating sleeve 6 is installed on the surface of the yoke iron plate 7, and the insulating sleeve 6 is supported by the yoke iron plate 7. A main spring 5 is arranged between one end, far away from the fixed frame 4, of the magnetic conduction block 3 and the insulating sleeve 6, the main spring 5 enables the magnetic conduction block 3 and the movable spring leaf 2 to be tightly abutted at all times by releasing elastic acting force, and then the movable spring leaf 2 is separated from and contacted with the stationary contact 1 by moving the pushing rod assembly up and down.
Further, referring to fig. 1 and fig. 2, a plurality of grooves 101 are formed in an end surface of the stationary contact 1 near the movable spring 2, and adjacent grooves 101 are connected in a cross manner. Specifically, the groove 101 is formed in an end surface of the stationary contact 1 close to the movable spring piece 2 along a radial direction of the stationary contact 1.
Further, adjacent slots 101 are cross-connected, and preferably, in the contact point contact structure for a relay according to the embodiment, the cross between adjacent slots 101 is a right-angle cross, that is, the two adjacent slots 101 are perpendicular to each other. The adjacent grooves 101 are in cross connection, so that one surface of the static contact 1, which is close to the movable reed 2, forms four surfaces to be contacted with the movable reed 2, when a large current passes through, the current flowing through the movable reed 2 is reduced to one fourth of the original current by the four surfaces, and the current flowing through the movable reed 2 is reduced to one fourth of the original current, so that the current is shunted, the electric repulsion force generated by the large current passing through is further reduced, and the contact stability is improved.
Of course, in other embodiments of the present invention, adjacent troughs 101 may be non-cross-connected, such as side-by-side, etc. Similarly, the intersection between the adjacent grooves 101 may also be a non-right-angle intersection, and it is only necessary that the surface of the stationary contact 1 contacting the movable contact piece 2 is a plurality of surfaces, and therefore, the present invention is not limited further.
The second embodiment:
the second embodiment has the same structure as the first embodiment, please refer to fig. 3 and 4, except that a single groove 101 is formed at one end of the stationary contact 1 close to the movable spring 2, and the single groove 101 also enables the stationary contact 1 to contact one end of the movable spring 2 to form two surfaces, which can also realize current shunting, when a large current passes through, the two surfaces reduce the current flowing through the movable spring 2 to one half of the original current, and the current flowing through the movable spring 2 to one half of the original current, so as to realize current shunting, further reduce the electric repulsion generated by the large current passing through, and improve the contact stability.
Example three:
most of the structures of the third embodiment are the same as those of the first embodiment, please refer to fig. 5 and 6, but the difference is that one end of the stationary contact 1 close to the movable contact 2 is not grooved, and one end of the movable contact 2 close to the stationary contact 1 has at least two surfaces to contact with the stationary contact 1, specifically, at least one opening 200 is respectively formed at two ends of the movable contact 2, preferably, in the contact structure for the relay in the third embodiment, the opening 200 is one, and the opening 200 separates each end of the movable contact 2 to form at least two lobes, so that each lobe has one surface to contact with the stationary contact 1, thereby reducing the current flowing through the movable contact 2, reducing the electric repulsion generated by passing of a large current, and improving the contact stability.
Of course, in other embodiments of the present invention, any opening other than one opening 200 may be provided at both ends of the movable spring plate 2, as long as the movable spring plate 2 has a plurality of surface contact stationary contacts 1, and the large current is reduced by the generated electric repulsive force.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A contact point contact structure for a relay, characterized in that: a contact structure for relay includes that the owner touches subassembly, push rod subassembly, magnetic conductive block and main spring, the owner touch the subassembly include a plurality of stationary contacts and with the movable contact spring of stationary contact surface contact, movable contact spring is connected with the push rod subassembly, the push rod subassembly includes insulating cover, mount and the push rod of a body coupling, the one end that the magnetic conductive block is close to the mount will the movable contact spring is fixed, the magnetic conductive block is kept away from install the main spring between the one end of mount and the insulating cover.
2. A contact point contact structure for a relay according to claim 1, wherein: and one end of the static contact close to the movable reed is provided with at least two surfaces which are contacted with the movable reed.
3. A contact point contact structure for a relay according to claim 2, wherein: and one end of the static contact close to the movable reed is provided with a single groove.
4. A contact point contact structure for a relay according to claim 2, wherein: and one end of the static contact close to the movable reed is provided with a plurality of grooves.
5. A contact point contact structure for a relay according to claim 4, wherein: when the stationary contact has a plurality of slots, adjacent slots are cross-connected.
6. A contact point contact structure for a relay according to claim 4, wherein: when the stationary contact has a plurality of slots, adjacent slots are not cross-connected.
7. A contact point contact structure for a relay according to claim 5, wherein: the intersections between adjacent grooves are right-angle intersections.
8. A contact point contact structure for a relay according to claim 5, wherein: the intersection between the adjacent grooves is a non-right-angle intersection.
9. A contact point contact structure for a relay according to claim 1, wherein: and one end of the movable spring leaf close to the static contact is provided with at least two faces which are contacted with the static contact.
10. A contact point contact structure for a relay according to claim 9, wherein: and at least one opening is respectively formed at two ends of the movable spring plate, and each end of the movable spring plate is separated into at least two petals by the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221432819.1U CN217847832U (en) | 2022-06-09 | 2022-06-09 | Contact structure for relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221432819.1U CN217847832U (en) | 2022-06-09 | 2022-06-09 | Contact structure for relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217847832U true CN217847832U (en) | 2022-11-18 |
Family
ID=84021116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221432819.1U Active CN217847832U (en) | 2022-06-09 | 2022-06-09 | Contact structure for relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217847832U (en) |
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2022
- 2022-06-09 CN CN202221432819.1U patent/CN217847832U/en active Active
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