CN214068655U - Push-rod relay capable of reducing contact arc melting - Google Patents
Push-rod relay capable of reducing contact arc melting Download PDFInfo
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- CN214068655U CN214068655U CN202023309282.3U CN202023309282U CN214068655U CN 214068655 U CN214068655 U CN 214068655U CN 202023309282 U CN202023309282 U CN 202023309282U CN 214068655 U CN214068655 U CN 214068655U
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Abstract
The utility model relates to the technical field of relays, in particular to a push rod type relay for reducing the melting of contact arcs, which comprises an insulator, an electromagnet arranged on the insulator and a contact unit; the contact unit comprises a movable terminal and a fixed terminal which are arranged on the insulator; the movable terminal comprises a movable spring piece arranged on the insulator, a main piece and two auxiliary pieces which are arranged on the same side of the movable spring piece, and a movable contact arranged on the main piece, wherein the two auxiliary pieces are respectively positioned on the left side and the right side of the main piece; the insulation push rod is provided with a push plate and two pins arranged on the same side of the push plate; the auxiliary sheet is provided with a positioning hole, and two pins of the insulating push rod are respectively accommodated in the positioning holes of the two auxiliary sheets; the creepage distance between the insulation push rod and the moving contact is increased, the probability of melting the insulation push rod due to the fact that the temperature of the moving contact is transmitted to the insulation push rod is reduced, and the service life of the relay is prolonged.
Description
Technical Field
The utility model relates to a relay technical field especially discloses a reduce push-down relay that contact electric arc melts.
Background
The relay is an electronic element with high requirement reliability, the safety protection requirement is higher and higher along with market development, common insulation in certain specific occasions cannot be met, the requirement can be met only by strengthening the insulation, and certain difficulty is caused on the structure due to the limitation of space in small volume.
In addition, because the terminal can produce high temperature when contacting and switching on, the structural design of push jack among the prior art is unreasonable, and the temperature when the terminal contacts and switches on can transmit to the push jack and lead to it to melt, causes the unable normal use of relay.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a push rod type relay for reducing the melting of contact arc, two pins of an insulating push rod are respectively accommodated in positioning holes of two auxiliary sheets; the creepage distance between the insulation push rod and the moving contact is increased, the probability of melting the insulation push rod due to the fact that the temperature of the moving contact is transmitted to the insulation push rod is reduced, and the service life of the relay is prolonged.
In order to achieve the above object, the utility model discloses a push-rod relay for reducing the melting of contact arc, which comprises an insulator, an electromagnet and a contact unit, wherein the electromagnet is arranged on the insulator, and the contact unit is driven by the electromagnet to be switched on or off by means of magnetic force; the contact unit comprises a movable terminal and a fixed terminal which are arranged on the insulator, the electromagnet drives the movable terminal to move by means of magnetic force, and the movable terminal is in contact with the fixed terminal or is separated from the fixed terminal; the movable terminal comprises a movable spring piece arranged on the insulator, a main piece and two auxiliary pieces which are arranged on the same side of the movable spring piece, and a movable contact arranged on the main piece, wherein the two auxiliary pieces are respectively positioned on the left side and the right side of the main piece; the insulation push rod is provided with a push plate and two pins arranged on the same side of the push plate; the auxiliary sheet is provided with a positioning hole, and the two pins of the insulating push rod are respectively accommodated in the positioning holes of the two auxiliary sheets.
The movable terminal further comprises an attaching piece, wherein the end, far away from the movable spring, of the main piece is bent and attached to the main piece, the movable contact is riveted on the main piece and the attaching piece, and the movable contact is located on one side, far away from the push plate, of the main piece.
The free end of the auxiliary sheet is provided with a first bent position-giving sheet, and the first position-giving sheet is formed by bending from the auxiliary sheet towards the direction far away from the partition plate and towards the direction far away from the movable spring sheet.
The auxiliary sheet is provided with a second yielding sheet which is formed by bending from the side wall of the positioning hole, the second yielding sheet is formed by bending from the auxiliary sheet towards the direction away from the partition plate and towards the direction close to the movable spring piece, and one end, close to the auxiliary sheet, of the second yielding sheet is abutted to support pins.
And the joint of the second yielding sheet and the auxiliary sheet forms a smooth convex arc which is used for abutting against the support pin.
The movable reed comprises a fixing part arranged on the insulator and an inclined part bent from the fixing part, a main piece and an auxiliary piece are arranged at one end, far away from the fixing part, of the inclined part, the main piece and the auxiliary piece are arranged in a coplanar mode, the main piece and the fixing part are arranged in parallel, a blanking hole is formed in the middle of the inclined part, and the blanking hole penetrates through the inclined part along the thickness direction of the inclined part.
The insulating push rod is also provided with a partition plate parallel to the push plate, the push plate is positioned between the partition plate and the contact unit, and the partition plate is positioned between the electromagnet and the push plate.
The insulator is provided with a movable groove, the partition board is movably contained in the movable groove, and the side surface of the inner groove of the movable groove is used for stopping the limiting partition board.
The utility model has the advantages that: the main piece and the two auxiliary pieces are arranged on the same side of the movable spring piece, the movable contact is arranged on the main piece, the two auxiliary pieces are respectively positioned on the left side and the right side of the main piece, and the two pins of the insulating push rod are respectively accommodated in the positioning holes of the two auxiliary pieces; the creepage distance between the insulation push rod and the moving contact is increased, the probability of melting the insulation push rod due to the fact that the temperature of the moving contact is transmitted to the insulation push rod is reduced, and the service life of the relay is prolonged.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic perspective view of the movable terminal of the present invention;
fig. 3 is a schematic perspective view of the insulation push rod of the present invention.
The reference numerals include:
1-insulator 2-electromagnet 3-insulating push rod
4-moving terminal 5-static terminal 6-moving reed
7-main plate 8-auxiliary plate 9-moving contact
11-push plate 12-pin 13-positioning hole
14-laminating piece 15-first abdicating piece 16-second abdicating piece
17-smooth convex arc 18-inclined part 19-blanking hole
21, a partition plate 22 and a movable groove.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.
Referring to fig. 1 to 3, a push-rod relay for reducing contact arc melting according to the present invention includes an insulator 1, an electromagnet 2 installed on the insulator 1, and a contact unit, wherein the electromagnet 2 drives the contact unit to be turned on or off by magnetic force.
The insulating push rod 3 is further included, the contact unit comprises a movable terminal 4 and a fixed terminal 5 which are arranged on the insulator 1, the electromagnet 2 drives the insulating push rod 3 to drive the movable terminal 4 to move electrically through magnetic force, and the movable terminal 4 is in contact with the fixed terminal 5 or is separated from the fixed terminal 5 to be disconnected.
The movable terminal 4 comprises a movable spring 6 fixedly arranged on the insulator 1, a main piece 7 and two auxiliary pieces 8 which are arranged on the same side of the movable spring 6, and a movable contact 9 fixedly arranged on the main piece 7, wherein the two auxiliary pieces 8 are respectively positioned on the left side and the right side of the main piece 7.
The insulating push rod 3 is provided with a push plate 11 and two pins 12 arranged on the same side of the push plate 11, the push plate 11 is used for stopping and abutting against the main sheet 7 and the auxiliary sheet 8, and when the magnetic force of the electromagnet 2 drives the insulating push rod 3 to move, the pins 12 of the insulating push rod 3 abut against and drive the auxiliary sheet 8 to enable the movable contact spring 6 to drive the movable contact 9 to move; the auxiliary sheet 8 is provided with a positioning hole 13, the two pins 12 of the insulating push rod 3 are respectively accommodated in the positioning holes 13 of the two auxiliary sheets 8, and the pins 12 are limited by the inner hole side surfaces of the positioning holes 13, so that the pins 12 are prevented from being separated from the auxiliary sheets 8.
A main sheet 7, two auxiliary sheets 8 and a moving contact 9 arranged on the main sheet 7 are arranged on the same side of the moving spring 6, the two auxiliary sheets 8 are respectively positioned on the left side and the right side of the main sheet 7, and two pins 12 of the insulating push rod 3 are respectively accommodated in positioning holes 13 of the two auxiliary sheets 8; the creepage distance between the insulating push rod 3 and the moving contact 9 is increased, the probability of melting the insulating push rod 3 due to the fact that the temperature of the moving contact 9 is transmitted to the insulating push rod 3 is reduced, and the service life of the relay is prolonged.
The movable terminal 4 further comprises an attaching sheet 14 which is bent from one end of the main sheet 7 far away from the movable spring 6 and is attached to the main sheet 7, the movable contact 9 is riveted on the main sheet 7 and the attaching sheet 14, and the movable contact 9 is positioned on one side of the main sheet 7 far away from the push plate 11. Increase moving contact 9 and movable contact spring 6's area of contact for moving contact 9's heat transmits to movable contact spring 6 fast, promotes moving contact 9's radiating efficiency, reduces the temperature rise of relay, guarantees the stability of relay performance.
The free end of the auxiliary sheet 8 is provided with a bent first relief sheet 15, and the first relief sheet 15 is formed by bending the auxiliary sheet 8 towards the direction away from the partition plate 21 and the direction away from the movable spring sheet 6. By means of the arrangement of the first position-giving piece 15, the free end of the auxiliary piece 8 is prevented from scraping the insulation push rod 3 to generate scraping chips.
The auxiliary sheet 8 is provided with a second position-giving sheet 16 which is formed by bending from the side wall of the positioning hole 13, the second position-giving sheet 16 is formed by bending from the auxiliary sheet 8 towards the direction far away from the partition plate 21 and towards the direction close to the movable spring piece 6, and one end of the second position-giving sheet 16 close to the auxiliary sheet 8 is abutted against the support pin 12. In practical use, the pins 12 are pressed against the second position-giving piece 16, so as to avoid scraping chips generated by scraping the pins 12 against the positioning holes 13.
The junction of the second position-letting sheet 16 and the auxiliary sheet 8 forms a smooth convex arc 17, and the smooth convex arc 17 is used for abutting against the support pin 12. When the pin 12 and the auxiliary sheet 8 move relatively, the pin 12 and the auxiliary sheet 8 roll relatively by virtue of the structural design of the smooth convex arc 17, so that the friction noise and the abrasion are reduced.
The movable spring 6 comprises a fixing part arranged on the insulator 1 and an inclined part 18 bent from the fixing part, the main piece 7 and the auxiliary piece 8 are both arranged at one end of the inclined part 18 far away from the fixing part, the main piece 7 and the auxiliary piece 8 are arranged in a coplanar manner, the main piece 7 and the fixing part are arranged in parallel, a blanking hole 19 is formed in the middle of the inclined part 18, and the blanking hole 19 penetrates through the inclined part 18 along the thickness direction of the inclined part 18.
Through the setting of slope 18, the length of extension movable contact spring 6 increases movable contact spring 6's elasticity for insulating push rod 3 can easily promote movable contact spring 6 and remove, and after electro-magnet 2 lost the magnetic force, movable contact spring 6 can drive insulating push rod 3 and reset fast. By providing the blanking hole 19, the strength of the inclined portion 18 is reduced, and the elasticity of the movable spring 6 is improved.
The insulating push rod 3 is also provided with a partition plate 21 parallel to the push plate 11, the push plate 11 is positioned between the partition plate 21 and the contact unit, and the partition plate 21 is positioned between the electromagnet 2 and the push plate 11. By means of the arrangement of the push plate 11 and the partition plate 21, the electromagnet 2 and the contact unit are isolated, and the electromagnetic interference of the electromagnet 2 to the contact unit is reduced.
The insulator 1 is provided with a movable groove 22, the partition plate 21 is movably accommodated in the movable groove 22, and the side surface of the inner groove of the movable groove 22 is used for stopping and limiting the partition plate 21. In the moving process of the insulating push rod 3 driven by the magnetic force of the electromagnet 2, the insulating push rod 3 is prevented from moving excessively and being used badly by the inner groove side surface limit partition plate 21 of the movable groove 22.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. A push rod type relay capable of reducing contact arc melting comprises an insulator, an electromagnet and a contact unit, wherein the electromagnet and the contact unit are arranged on the insulator; the method is characterized in that: the contact unit comprises a movable terminal and a fixed terminal which are arranged on the insulator, the electromagnet drives the movable terminal to move by means of magnetic force, and the movable terminal is in contact with the fixed terminal or is separated from the fixed terminal; the movable terminal comprises a movable spring piece arranged on the insulator, a main piece and two auxiliary pieces which are arranged on the same side of the movable spring piece, and a movable contact arranged on the main piece, wherein the two auxiliary pieces are respectively positioned on the left side and the right side of the main piece; the insulation push rod is provided with a push plate and two pins arranged on the same side of the push plate; the auxiliary sheet is provided with a positioning hole, and the two pins of the insulating push rod are respectively accommodated in the positioning holes of the two auxiliary sheets.
2. The push-rod relay of claim 1, wherein the push-rod relay is configured to reduce contact arc melting: the movable terminal also comprises an attaching sheet which is bent and attached to the main sheet at one end of the main sheet, which is far away from the movable spring, the movable contact is riveted on the main sheet and the attaching sheet, and the movable contact is positioned on one side of the main sheet, which is far away from the push plate.
3. The push-rod relay of claim 1, wherein the push-rod relay is configured to reduce contact arc melting: the free end of the auxiliary sheet is provided with a first bent position-giving sheet, and the first position-giving sheet is formed by bending from the auxiliary sheet towards the direction away from the partition plate and towards the direction away from the movable spring sheet.
4. The push-rod relay of claim 1, wherein the push-rod relay is configured to reduce contact arc melting: the auxiliary sheet is provided with a second yielding sheet which is formed by bending from the side wall of the positioning hole, the second yielding sheet is formed by bending from the auxiliary sheet towards the direction away from the partition plate and towards the direction close to the movable reed, and one end of the second yielding sheet close to the auxiliary sheet is abutted to support pins.
5. The push-rod relay of claim 4, wherein the push-rod relay is configured to reduce contact arc melting: the connecting part of the second yielding sheet and the auxiliary sheet forms a smooth convex arc which is used for abutting against the supporting pin.
6. The push-rod relay of claim 1, wherein the push-rod relay is configured to reduce contact arc melting: the movable reed comprises a fixing part arranged on the insulator and an inclined part bent from the fixing part, a main piece and an auxiliary piece are arranged at one end, far away from the fixing part, of the inclined part, the main piece and the auxiliary piece are arranged in a coplanar mode, the main piece and the fixing part are arranged in parallel, a blanking hole is formed in the middle of the inclined part, and the blanking hole penetrates through the inclined part along the thickness direction of the inclined part.
7. The push-rod relay of claim 1, wherein the push-rod relay is configured to reduce contact arc melting: the insulating push rod is also provided with a partition plate parallel to the push plate, the push plate is positioned between the partition plate and the contact unit, and the partition plate is positioned between the electromagnet and the push plate.
8. The push-rod relay of claim 7, wherein the push-rod relay is configured to reduce contact arc melting: the insulator is provided with a movable groove, the partition board is movably contained in the movable groove, and the side surface of the inner groove of the movable groove is used for stopping and limiting the partition board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023309282.3U CN214068655U (en) | 2020-12-31 | 2020-12-31 | Push-rod relay capable of reducing contact arc melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023309282.3U CN214068655U (en) | 2020-12-31 | 2020-12-31 | Push-rod relay capable of reducing contact arc melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214068655U true CN214068655U (en) | 2021-08-27 |
Family
ID=77368260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023309282.3U Active CN214068655U (en) | 2020-12-31 | 2020-12-31 | Push-rod relay capable of reducing contact arc melting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214068655U (en) |
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2020
- 2020-12-31 CN CN202023309282.3U patent/CN214068655U/en active Active
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