CN219677150U - Contact device for relay - Google Patents
Contact device for relay Download PDFInfo
- Publication number
- CN219677150U CN219677150U CN202320525760.9U CN202320525760U CN219677150U CN 219677150 U CN219677150 U CN 219677150U CN 202320525760 U CN202320525760 U CN 202320525760U CN 219677150 U CN219677150 U CN 219677150U
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- fixedly connected
- wall
- top surface
- base
- rod
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- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Abstract
The utility model discloses a contact device for a relay, which relates to the technical field of relays and comprises a base, wherein a coil is fixedly connected to the top surface of the base, a telescopic rod is fixedly and symmetrically connected to the top surface of the base, a driving plate is fixedly connected to the outer wall of the telescopic rod, a reset spring is movably connected to the outer wall of the telescopic rod, the top end of the reset spring is fixedly connected with the bottom surface of the driving plate, the bottom end of the reset spring is fixedly connected with the top surface of the base, a fixed contact is fixedly connected to the top surface of the coil, and a movable contact is movably clamped to the top surface of the driving plate. According to the utility model, the two sliding blocks are close to each other by pushing the sliding blocks, the clamping rods are driven by the sliding blocks to separate from the clamping grooves II, so that the movable contact can be removed and replaced, the movable contact is convenient to replace, the problem that the relay needs to be replaced to cause resource waste is avoided, and the electric accident caused by secondary contact connection is avoided by the thrust of the reset spring.
Description
Technical Field
The utility model relates to the technical field of relays, in particular to a contact device for a relay.
Background
The relay is a point control device, when the change of input quantity reaches the specified requirement, the controlled quantity is changed in a preset stage in the output circuit of the electric appliance, and the relay has the interaction relation between a control system and the controlled system, is usually applied to an automatic control circuit, and is actually an 'automatic switch' for controlling the operation of large current by small current, and plays roles of automatic regulation, safety protection, a switching circuit and the like in the circuit. The following problems exist in the prior art:
because the existing relay contacts are generally welded with the contact pieces, the problem that once the contacts fail, the relay needs to be replaced, and resource waste is caused.
Disclosure of Invention
The present utility model provides a contact device for a relay to solve the problems set forth in the background art.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides a contact device for relay, includes the base, the top surface fixedly connected with coil of base, the top surface fixedly connected with telescopic link of base, the outer wall fixedly connected with drive plate of telescopic link, the outer wall swing joint of telescopic link has reset spring, reset spring's top and the bottom surface fixed connection of drive plate, reset spring's bottom and the top surface fixed connection of base, the top surface fixedly connected with stationary contact of coil, the top surface movable joint of drive plate has the movable contact, the both sides face fixedly connected with connecting plate of movable contact, the spout has been seted up to the top surface of connecting plate, the inner wall fixedly connected with slide bar of spout, the outer wall sliding connection of slide bar has the slider, the outer wall swing joint of slide bar has compression spring two, compression spring two's one end and the side fixedly connected with of slider, the inner wall fixedly connected with draw-in lever of slider, draw-in groove two has been seted up to the outer wall of drive plate, the inner wall that one end of draw-in lever runs through the inner wall of draw-in groove and extends to draw-in groove two.
By adopting the technical scheme, the two sliding blocks are close to each other by pushing the sliding blocks, the clamping rods are driven by the sliding blocks to separate from the clamping grooves II, and then the movable contact can be taken down to replace the movable contact, so that the movable contact is convenient to replace.
The technical scheme of the utility model is further improved as follows: the top surface swing joint of base has the shell, the cavity has been seted up to the inside both sides of shell, the inner wall sliding connection of cavity has the inserted bar, draw-in groove one has been seted up to the side of base, the one end of inserted bar runs through the inner wall of cavity and extends to in the draw-in groove one.
By adopting the technical scheme, the shell can be fixed on the base by inserting the inserting rod into the first clamping groove.
The technical scheme of the utility model is further improved as follows: the side fixedly connected with pull rod of inserted bar, the one end of pull rod runs through the inner wall of cavity and extends to outside and fixedly connected with pull ring.
By adopting the technical scheme, in the scheme, the pull rod is pulled by the pull ring to drive the insert rod to move into the cavity, so that the insert rod is separated from the clamping groove I.
The technical scheme of the utility model is further improved as follows: the outer wall swing joint of pull rod has compression spring one, compression spring one's one end and the side fixed connection of inserted bar, compression spring one's the other end and the inner wall fixed connection of cavity.
By adopting the technical scheme, the push force generated by extrusion of the compression spring I in the scheme pushes the inserted link to enter the clamping groove I, so that the shell can be fixed on the base, and the installation and the disassembly are convenient.
The technical scheme of the utility model is further improved as follows: and the top end of the telescopic rod is fixedly connected with a limiting block.
By adopting the technical scheme, the driving plate is limited by the limiting block in the scheme, so that the driving plate is prevented from being separated from the telescopic rod by the thrust of the reset spring.
The technical scheme of the utility model is further improved as follows: and the side surfaces of the two ends of the driving plate are fixedly connected with terminals.
By adopting the technical scheme, the terminals at the two ends are driven by the driving plate to form a loop with the control circuit.
By adopting the technical scheme, compared with the prior art, the utility model has the following technical progress:
1. the utility model provides a contact device for a relay, which is characterized in that two sliding blocks are pushed to be close to each other, a clamping rod is driven by the sliding blocks to be separated from a clamping groove II, at the moment, a movable contact can be taken down to be replaced, the movable contact is convenient to replace, the failure of the movable contact is avoided, the relay is required to be replaced, the resource waste is caused, and the secondary connection of the contact is avoided through the thrust of a reset spring.
2. The utility model provides a contact device for a relay, which is characterized in that a pull ring is used for pulling a pull rod to drive a plunger rod to move into a cavity, so that the plunger rod is separated from a clamping groove I, at the moment, a shell can be removed, the shell can be conveniently detached when a movable contact needs to be replaced in the later period, then the pull ring is loosened, the plunger rod is pushed to enter the clamping groove I by the pushing force generated by extrusion of a compression spring I, the shell can be fixed on a base, and the installation and the detachment are convenient.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic cross-sectional view of the housing of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
In the figure: 1. a base; 11. a clamping groove I; 2. a housing; 21. a cavity; 22. a rod; 23. compressing a first spring; 3. a pull rod; 31. a pull ring; 4. a coil; 41. a stationary contact; 5. a telescopic rod; 51. a return spring; 52. a limiting block; 6. a driving plate; 61. a terminal; 62. a clamping groove II; 7. a movable contact; 71. a connecting plate; 711. a chute; 712. a slide bar; 713. a slide block; 714. compression spring II; 715. and (5) clamping the rod.
Detailed Description
The utility model is further illustrated by the following examples:
example 1
As shown in fig. 1-4, the utility model provides a contact device for a relay, which comprises a base 1, the top surface of the base 1 is fixedly connected with a coil 4, the top surface of the base 1 is fixedly and symmetrically connected with a telescopic rod 5, the outer wall of the telescopic rod 5 is fixedly connected with a driving plate 6, the outer wall of the telescopic rod 5 is movably connected with a return spring 51, the top end of the return spring 51 is fixedly connected with the bottom surface of the driving plate 6, the bottom end of the return spring 51 is fixedly connected with the top surface of the base 1, the top surface of the coil 4 is fixedly connected with a stationary contact 41, the top surface of the driving plate 6 is movably clamped with a movable contact 7, two side surfaces of the movable contact 7 are fixedly connected with a connecting plate 71, the top surface of the connecting plate 71 is provided with a sliding groove 711, the inner wall of the sliding groove 711 is fixedly connected with a sliding rod 712, the outer wall of the sliding rod 712 is slidably connected with a sliding block 713, the outer wall of the sliding rod 712 is movably connected with a compression spring 714, one end of the compression spring 714 is fixedly connected with the side surface of the sliding block 713, the other end of the compression spring 714 is fixedly connected with a clamping rod 715, the outer wall of the driving plate 6 is provided with a clamping groove 62, and one end of the clamping rod 715 extends into the clamping groove 62 through the inner wall of the clamping groove 711.
In this embodiment, when the coil 4 is not energized, the reset spring 51 resets, drives the driving plate 6 to separate the movable contact 7 from the stationary contact 41, avoids electrical accidents caused by secondary contact connection through the thrust of the reset spring 51, makes the two sliding blocks 713 close to each other by pushing the sliding blocks 713, drives the clamping rod 715 to separate from the clamping groove two 62 through the sliding blocks 713, and then can take down the movable contact 7 to replace the movable contact 7, thereby facilitating the replacement of the movable contact 7, avoiding the failure of the movable contact 7, requiring the replacement of a relay, causing resource waste, pushing the sliding blocks 713 through the thrust of the compression spring two 714, and making the clamping connection between the clamping rod 715 and the clamping groove two 62 more stable.
Example 2
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the top surface swing joint of base 1 has shell 2, cavity 21 has been seted up to the inside of the both sides of shell 2, the inner wall sliding connection of cavity 21 has inserted bar 22, draw-in groove one 11 has been seted up to the side of base 1, the inner wall that the cavity 21 was run through to the one end of inserted bar 22 extends to in the draw-in groove one 11, the side fixedly connected with pull rod 3 of inserted bar 22, the one end of pull rod 3 runs through the inner wall of cavity 21 and extends to outside and fixedly connected with pull ring 31, the outer wall swing joint of pull rod 3 has compression spring one 23, the one end of compression spring one 23 and the side fixed connection of inserted bar 22, the other end of compression spring one 23 and the inner wall fixed connection of cavity 21.
In this embodiment, pull rod 3 is pulled by pull ring 31 to drive insert rod 22 to displace into cavity 21, so that insert rod 22 is separated from first clamping groove 11, at this time, housing 2 can be removed, so that it is convenient to detach housing 2 when movable contact 7 needs to be replaced in the later stage, pull ring 31 is released, insert rod 22 is pushed into first clamping groove 11 by the pushing force generated by compression spring 23, housing 2 can be fixed on base 1, and installation and detachment are facilitated.
Example 3
As shown in fig. 1-4, on the basis of embodiment 1, the present utility model provides a technical solution: preferably, the top end of the telescopic rod 5 is fixedly connected with a limiting block 52, and the side surfaces of two ends of the driving plate 6 are fixedly connected with terminals 61.
In this embodiment, the driving plate 6 is limited by the limiting block 52, so as to prevent the driving plate 6 from being separated from the telescopic rod 5 by the thrust of the return spring 51, and the terminals 61 at two ends are driven by the driving plate 6 to form a loop with the control circuit.
The following specifically explains the operation principle of the contact device for a relay.
When the electric power device is used, as shown in fig. 1-4, firstly, the coil 4 is electrified to form a magnetic force field, the fixed contact 41 is used for forming adsorption force on the movable contact 7, the driving plate 6 is used for downwards sliding the compression reset spring 51 on the telescopic rod 5, the terminals 61 at two ends are driven by the driving plate 6 to form a loop with a control circuit, when the coil 4 is not electrified, the reset spring 51 is reset, the driving plate 6 is driven to enable the movable contact 7 to be separated from the fixed contact 41, the electric accident of the contact is avoided due to the thrust of the reset spring 51, when the movable contact 7 needs to be replaced, the two sliding blocks 713 are mutually close, the clamping rod 715 is driven to be separated from the clamping groove two 62 through the sliding block 713, at this time, the movable contact 7 can be replaced by the movable contact 7 conveniently, the movable contact 7 is replaced conveniently, the failure of the movable contact 7 is avoided, a relay needs to be replaced, the resource waste is caused, the clamping rod 715 and the clamping groove two 62 are further clamped by the pushing of the compression spring two 714, the clamping rod 22 is driven by the pulling rod 3 through the pulling 31 to be displaced into the cavity 21, the clamping rod 22 is separated from the clamping rod 22, the clamping rod 11 is separated from the clamping groove 11, at this time, the first time, the movable contact 7 can be conveniently replaced by the clamping rod 2 is conveniently replaced by the clamping rod 2, and the clamping rod 2 is conveniently replaced by the compression shell 2, and the compression shell 2 when the compression shell is conveniently is replaced by the compression shell 2.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. A contact device for a relay, comprising a base (1), characterized in that: the utility model discloses a compression spring device, including base (1), telescopic link (5) are fixedly connected with on the top surface fixedly connected with coil (4) of base (1), the outer wall fixedly connected with drive plate (6) of telescopic link (5), the outer wall swing joint of telescopic link (5) has reset spring (51), the top of reset spring (51) and the bottom surface fixedly connected with of drive plate (6), the bottom of reset spring (51) and the top surface fixedly connected with of base (1), the top surface fixedly connected with stationary contact (41) of coil (4), the top surface swing joint of drive plate (6) has movable contact (7), the both sides face fixedly connected with connecting plate (71) of movable contact (7), spout (711) are seted up on the top surface of connecting plate (71), the inner wall fixedly connected with slide bar (712) of spout (711), the outer wall sliding connection of slide bar (712) has slider (713), the outer wall swing joint of slide bar (712) has compression spring two (714), the side of compression spring two (714) and the side of slider (713) are connected fixedly, the outer wall of the driving plate (6) is provided with a clamping groove II (62), and one end of the clamping rod (715) penetrates through the inner wall of the sliding groove (711) and extends to the clamping groove II (62) to be movably clamped.
2. A contact device for a relay according to claim 1, wherein: the top surface swing joint of base (1) has shell (2), cavity (21) have been seted up to the inside both sides of shell (2), the inner wall sliding connection of cavity (21) has inserted bar (22), draw-in groove one (11) have been seted up to the side of base (1), the inner wall that cavity (21) was run through to one end of inserted bar (22) extends to in draw-in groove one (11).
3. A contact device for a relay according to claim 2, wherein: the side of inserted link (22) fixedly connected with pull rod (3), the one end of pull rod (3) runs through the inner wall of cavity (21) and extends to outside and fixedly connected with pull ring (31).
4. A contact device for a relay according to claim 3, wherein: the outer wall of the pull rod (3) is movably connected with a first compression spring (23), one end of the first compression spring (23) is fixedly connected with the side face of the inserted rod (22), and the other end of the first compression spring (23) is fixedly connected with the inner wall of the cavity (21).
5. A contact device for a relay according to claim 1, wherein: the top end of the telescopic rod (5) is fixedly connected with a limiting block (52).
6. A contact device for a relay according to claim 1, wherein: terminals (61) are fixedly connected to the side surfaces of the two ends of the driving plate (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320525760.9U CN219677150U (en) | 2023-03-17 | 2023-03-17 | Contact device for relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320525760.9U CN219677150U (en) | 2023-03-17 | 2023-03-17 | Contact device for relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677150U true CN219677150U (en) | 2023-09-12 |
Family
ID=87891129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320525760.9U Active CN219677150U (en) | 2023-03-17 | 2023-03-17 | Contact device for relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677150U (en) |
-
2023
- 2023-03-17 CN CN202320525760.9U patent/CN219677150U/en active Active
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