CN217387026U - Relay with auxiliary contact assembly - Google Patents
Relay with auxiliary contact assembly Download PDFInfo
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- CN217387026U CN217387026U CN202220770490.3U CN202220770490U CN217387026U CN 217387026 U CN217387026 U CN 217387026U CN 202220770490 U CN202220770490 U CN 202220770490U CN 217387026 U CN217387026 U CN 217387026U
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- auxiliary contact
- relay
- positioning
- iron core
- contact switch
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Abstract
The utility model relates to a relay, concretely relates to relay with auxiliary contact subassembly. A relay with an auxiliary contact assembly is characterized by comprising a shell, wherein a U-shaped yoke is arranged in the shell, a magnetic conduction cylinder is arranged in the U-shaped yoke, a movable iron core assembly and an auxiliary contact assembly are arranged in the magnetic conduction cylinder, the movable iron core assembly comprises a movable iron core and a push rod, the auxiliary contact assembly comprises an auxiliary contact switch used for sending the working state of the relay and a touch piece used for touching the auxiliary contact switch, and the movable iron core assembly is lifted to enable the touch piece and the auxiliary contact switch to be close to or separated from each other. The utility model has the advantages of use reliability higher, it is more convenient to assemble, and the cost is lower.
Description
Technical Field
The utility model relates to a high voltage direct current relay, concretely relates to relay with auxiliary contact subassembly.
Background
In order to monitor the working state of the direct current relay, an auxiliary contact is arranged in the relay, and an auxiliary contact detection circuit is arranged externally. The working state of the relay comprises: the relay is in a normal working state that the movable and static contacts are conducted, a normal working state that the movable and static contacts are disconnected, a fault state that the movable and static contacts are not contacted and conducted after receiving the attraction signal, and a fault state that the movable and static contacts are bonded after receiving the disconnection signal.
The Chinese patent with the application number of 201910258948.X discloses an auxiliary contact structure and a high-voltage direct-current relay with an auxiliary contact, wherein the auxiliary contact structure comprises a U-shaped support used for installing a main reed, an auxiliary contact leading-out end, an auxiliary reed and a ceramic cover, the ceramic cover is provided with a cavity with a downward opening, the two auxiliary contact leading-out ends are respectively arranged at the top wall of the ceramic cover and extend the respective bottom ends into the cavity of the ceramic cover, the auxiliary reed and the mounting support are connected into an integral piece in an insulating and isolating mode through a plastic piece, the auxiliary reed is arranged on the upper portion and is in a distribution mode under the mounting support, the bottom of the mounting support is fixed with the top of the U-shaped support, and the two ends of the auxiliary reed are respectively corresponding to the bottom ends of the two auxiliary contact leading-out ends.
The above scheme has the following defects: the structure is complex, the production cost is high, and the assembly requirement is high; when the auxiliary contact terminal is used, the auxiliary spring plate and the auxiliary contact leading-out end can not be in normal contact, and the use reliability is poor.
Disclosure of Invention
The utility model aims at providing a use the relay that has auxiliary contact subassembly that the reliability is higher and the cost is lower.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the relay with the auxiliary contact assembly comprises a shell, wherein a U-shaped yoke is arranged in the shell, a magnetic conduction cylinder is arranged in the U-shaped yoke, a movable iron core assembly and the auxiliary contact assembly are arranged in the magnetic conduction cylinder, the movable iron core assembly comprises a movable iron core and a push rod, the auxiliary contact assembly comprises an auxiliary contact switch used for sending the working state of the relay and a touch piece used for touching the auxiliary contact switch, and the movable iron core assembly is lifted to enable the touch piece and the auxiliary contact switch to be close to or separated from each other.
Receive actuation or disconnected signal back when the relay, move iron core and catch bar and remove, so that the utility model discloses a touch the piece and close on or break away from each other with the auxiliary contact switch, then judge whether the relay is in normal operating condition or trouble according to the signal of telecommunication that whether the auxiliary contact switch sent. Wherein, the utility model discloses an auxiliary contact switch is connected with the external auxiliary contact detection circuitry electricity of relay according to conventional mode. Wherein, the utility model discloses an auxiliary contact switch can select current arbitrary contact switch (sensor) or proximity switch. The touch part can be the lower end of the push rod, and the touch part can also be mutually independent parts of the push rod.
The utility model discloses a set up contact switch or proximity switch, and be used for triggering auxiliary contact switch to replace conventional auxiliary reed (auxiliary contact) and auxiliary contact to draw forth the end, only need an electrical contact alright send the signal of telecommunication with making the auxiliary contact subassembly, it is higher to compare the auxiliary contact subassembly that needs two electrical contacts to use the reliability, and it is more convenient to assemble, and the cost is lower.
Preferably, the touch part is fixed at the lower end of the movable iron core or the push rod, and the touch part comprises a fixed part for being fixed with the movable iron core or the push rod and a touch part for being in contact with the auxiliary contact switch.
Preferably, the touch piece comprises a fixed part, a deformation part and a touch part, the fixed part is fixed with the fixed part of the relay, the touch part is used for contacting with the auxiliary contact switch, the deformation part is connected between the fixed part and the touch part, the movable iron core assembly moves downwards to enable the deformation part to bend and deform, and the deformation part is positioned on the upper side of the auxiliary contact switch. The touch piece can be fixed with a movable iron core or a push rod in the movable iron core assembly, and can also be fixed on a part which cannot move when the relay is used.
Preferably, the auxiliary contact switch is fixed on the mounting plate, and a positioning structure which is matched with the mounting plate to limit the movement of the mounting plate relative to the magnetic conduction cylinder is arranged between the mounting plate and the magnetic conduction cylinder. The auxiliary contact switch is fixed on the mounting plate, so that the auxiliary contact switch is convenient to assemble in the relay, and the auxiliary contact switch with pins is prevented from being inclined compared with other components in the relay. Wherein, the mounting plate can be formed by a PCB board so as to facilitate the wiring of the auxiliary contact switch. The positioning structure can be used for limiting the installation sheet to move along the horizontal direction and can also be used for limiting the installation sheet to move in the vertical height direction, so that the position of the auxiliary contact switch, which is used for being in contact with the touch moving piece, is not deviated from the set position.
Preferably, the positioning structure comprises positioning grooves arranged on the inner wall of the magnetic conduction cylinder and the outer wall of the mounting plate and positioning bulges extending into the positioning grooves; the inner wall of the magnetic conduction cylinder is provided with the positioning groove, the positioning groove penetrates through the lower end face of the magnetic conduction cylinder downwards, and the mounting plate is provided with the positioning protrusion. Through setting up location arch and positioning groove to avoid the installation piece to take place to rotate, with the reciprocating of guaranteeing to touch the piece and enable auxiliary contact switch to take place signal or signal disconnection.
Preferably, the positioning structure comprises a positioning block fixed in the magnetic conduction cylinder, the section of the positioning block is annularly arranged, the positioning block is positioned at the lower side of the movable iron core, and the outer wall of the mounting piece and the inner wall of the positioning block are provided with a positioning groove and a positioning protrusion extending into the positioning groove, which are matched with each other; the positioning piece is characterized in that the positioning groove is formed in the inner wall of the positioning block and penetrates through the lower end face of the positioning block downwards, and the mounting piece is provided with the positioning protrusion.
Preferably, the number of the positioning protrusions is at least two. Set up two at least location archs, can realize the location of the upper and lower direction of height between locating piece and installation piece to avoid being located the auxiliary contact switch on the installation piece too high or low excessively.
Preferably, the upper end of the positioning block extends towards the circumferential inner side to form an inner ring part, and the lower end of the push rod is in sliding fit in a vertical shaft hole formed by the inner ring part. The locating piece can also lead to the catch bar to guarantee the removal precision of catch bar, thereby guarantee the effective contact of sound contact.
As preferred, the magnetic conduction section of thick bamboo inner wall is equipped with the spread groove, the locating piece has and stretches into connecting portion in the spread groove, the spread groove encircles magnetic conduction section of thick bamboo inner wall a week, connecting portion are the annular. The connecting groove is formed in the magnetic conduction cylinder, so that the fixing effect of the positioning block injection-molded on the magnetic conduction cylinder can be improved.
Preferably, when the movable iron core assembly of the magnetic conduction cylinder does not move upwards, the touch piece is in contact with the auxiliary contact switch. The setting is convenient for not only setting the positions of the touch piece and the auxiliary contact switch, but also judging the working state of the relay by program control.
The utility model has the advantages of use reliability higher, it is more convenient to assemble, and the cost is lower.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a schematic structural view of the auxiliary contact assembly of the present invention;
fig. 3 is a schematic structural view of the auxiliary contact assembly and the magnetic conduction cylinder after being assembled according to the present invention;
fig. 4 is a schematic structural diagram of the positioning block of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and the specific embodiments.
Shown by fig. 1, the utility model discloses a relay with auxiliary contact subassembly, including casing 10, be equipped with U-shaped yoke 11 in the casing 10, be equipped with a magnetic conduction section of thick bamboo 12 in the U-shaped yoke 11, coil skeleton 13 and coil 14, be equipped with movable iron core subassembly and auxiliary contact subassembly in the magnetic conduction section of thick bamboo 12, movable iron core subassembly is including moving iron core 15 and catch bar 16, catch bar 16 upper end is passed yoke iron plate 17 and is fixed with movable contact 18, movable contact 18 top is equipped with two and draws forth end 19, movable contact 18 up end both ends are equipped with the movable contact, two are drawn forth the end 19 lower extreme and all are equipped with the stationary contact who corresponds with the movable contact.
The auxiliary contact assembly comprises an auxiliary contact switch 2 used for sending the working state of the relay and a touch piece 3 used for touching the auxiliary contact switch 2, when the movable iron core assembly of the magnetic conduction cylinder 12 does not move upwards, the touch piece 3 is in contact with the auxiliary contact switch 2, the movable iron core assembly rises to enable the touch piece 3 to be separated from the auxiliary contact switch 2, and the movable iron core assembly descends to enable the touch piece 3 to be in contact with the auxiliary contact switch 2. The auxiliary contact switch 2 of the present embodiment is a tact switch.
As shown in fig. 1 and 2, the touching member 3 is composed of a fixed portion 31, a deformation portion 32 and a touching portion 33, the touching member 3 is formed by bending a metal sheet, the fixed portion 31 is fixed with a fixed portion of the relay, the fixed portion refers to a component which cannot move in the relay when the movable iron core assembly is lifted, in this embodiment, the fixed portion is the mounting sheet 4, the touching portion 33 is used for contacting with the small button 21 of the auxiliary contact switch 2, the deformation portion 32 is connected between the fixed portion 31 and the touching portion 33, the movable iron core assembly moves downwards to enable the deformation portion 32 to bend and deform, the deformation portion 32 is located right above the small button of the auxiliary contact switch 2, and the touching portion 33 is in an inverted L-shaped structure to enable the touching portion to have a certain length and to be convenient to deform. Wherein, installation piece 4 is the PCB board, and auxiliary contact switch 2's pin welded fastening is on the installation piece, and the touching piece 3 also welds on the installation piece, and installation piece 4 or auxiliary contact switch 2's pin electricity is connected with the wire, and the wire extends to the relay outside and is connected with external auxiliary contact detection circuitry electricity.
As shown in fig. 1 to 4, the auxiliary contact switch 2 is also fixed on the mounting plate 4, and a positioning structure is disposed between the mounting plate 4 and the magnetic conducting cylinder 12 and is matched with each other to limit the movement of the mounting plate 4 relative to the magnetic conducting cylinder 12. The positioning structure comprises a positioning block 5 fixed in the magnetic conduction cylinder 12, the mounting plate 4 of the embodiment is fixed on the positioning block 5 by glue dispensing or welding, the section of the positioning block 5 is annularly arranged, the positioning block 5 is positioned at the lower side of the movable iron core 15, and the outer walls of two opposite sides of the mounting plate 4 and the inner wall of the positioning block 5 are provided with a positioning groove 51 and a positioning protrusion 41 extending into the positioning groove, which are mutually matched; the inner wall of the positioning block 5 is provided with the positioning groove 51, the positioning groove 51 downwards penetrates through the lower end face of the positioning block 5, and the mounting piece 4 is provided with the positioning protrusion 41.
As shown in fig. 1 and 4, the upper end of the positioning block 5 extends to the circumferential inner side to form an inner ring portion 52, and the lower end of the push rod 16 is slidably fitted in a vertical shaft hole 521 formed by the inner ring portion 52. The inner wall of the magnetic conduction cylinder 12 is provided with a connecting groove, the positioning block 5 is provided with a connecting part 53 extending into the connecting groove, the connecting groove surrounds the inner wall of the magnetic conduction cylinder 12 for a circle, and the connecting part is in an annular shape 53. In the embodiment, the positioning block 5 is formed on the magnetic conduction cylinder 12 by injection molding.
The utility model has the advantages of use reliability higher, it is more convenient to assemble, and the cost is lower.
Claims (10)
1. The relay with the auxiliary contact assembly is characterized by comprising a shell, wherein a U-shaped yoke is arranged in the shell, a magnetic conduction cylinder is arranged in the U-shaped yoke, a movable iron core assembly and the auxiliary contact assembly are arranged in the magnetic conduction cylinder, the movable iron core assembly comprises a movable iron core and a push rod, the auxiliary contact assembly comprises an auxiliary contact switch used for sending the working state of the relay and a touch piece used for touching the auxiliary contact switch, and the movable iron core assembly is lifted to enable the touch piece and the auxiliary contact switch to be close to or separated from each other.
2. The relay with the auxiliary contact assembly as claimed in claim 1, wherein the contact member is fixed to a lower end of the plunger or the push rod, and the contact member includes a fixing portion for fixing to the plunger or the push rod and a contact portion for contacting the auxiliary contact switch.
3. The relay of claim 1, wherein the contact member comprises a fixed portion, a deformable portion and a touch portion, the fixed portion is fixed to a fixed portion of the relay, the touch portion is used for contacting the auxiliary contact switch, the deformable portion is connected between the fixed portion and the touch portion, the movable iron core moves down to bend and deform the deformable portion, and the deformable portion is located on an upper side of the auxiliary contact switch.
4. The relay of claim 1, wherein the auxiliary contact switch is secured to the mounting plate, and a positioning structure is disposed between the mounting plate and the magnetic cylinder for limiting movement of the mounting plate relative to the magnetic cylinder.
5. The relay with the auxiliary contact assembly as claimed in claim 4, wherein the positioning structure comprises positioning grooves formed on the inner wall of the magnetic conducting cylinder and the outer wall of the mounting plate, and positioning protrusions extending into the positioning grooves; the inner wall of the magnetic conduction cylinder is provided with the positioning groove, the positioning groove penetrates through the lower end face of the magnetic conduction cylinder downwards, and the mounting plate is provided with the positioning protrusion.
6. The relay with the auxiliary contact assembly according to claim 4, wherein the positioning structure comprises a positioning block fixed in the magnetic conducting cylinder, the positioning block is annularly arranged in cross section and is located at the lower side of the movable iron core, and the outer wall of the mounting piece and the inner wall of the positioning block are provided with a positioning groove and a positioning protrusion extending into the positioning groove, which are matched with each other; the positioning piece is characterized in that the positioning groove is formed in the inner wall of the positioning block and penetrates through the lower end face of the positioning block downwards, and the mounting piece is provided with the positioning protrusion.
7. The relay with the auxiliary contact assembly as claimed in claim 6, wherein the number of the positioning projections is at least two.
8. The relay with the auxiliary contact assembly as claimed in claim 7, wherein the upper end of the positioning block extends to the inner side in the circumferential direction to form an inner ring portion, and the lower end of the push rod is slidably fitted in a vertical axial hole formed in the inner ring portion.
9. The relay according to claim 7, wherein the inner wall of the magnetic conductive cylinder is provided with a connecting groove, the positioning block has a connecting portion extending into the connecting groove, the connecting groove surrounds the inner wall of the magnetic conductive cylinder for a circle, and the connecting portion is annular.
10. The relay according to claim 1, wherein said trip member contacts said auxiliary contact switch when said plunger assembly of said magnetically permeable cartridge is not moved upwardly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220770490.3U CN217387026U (en) | 2022-04-06 | 2022-04-06 | Relay with auxiliary contact assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220770490.3U CN217387026U (en) | 2022-04-06 | 2022-04-06 | Relay with auxiliary contact assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217387026U true CN217387026U (en) | 2022-09-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220770490.3U Active CN217387026U (en) | 2022-04-06 | 2022-04-06 | Relay with auxiliary contact assembly |
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| Country | Link |
|---|---|
| CN (1) | CN217387026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114695023A (en) * | 2022-04-06 | 2022-07-01 | 浙江英洛华新能源科技有限公司 | Relay with switch type auxiliary contact assembly |
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2022
- 2022-04-06 CN CN202220770490.3U patent/CN217387026U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114695023A (en) * | 2022-04-06 | 2022-07-01 | 浙江英洛华新能源科技有限公司 | Relay with switch type auxiliary contact assembly |
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