CN218826872U - Relay with auxiliary contact switch flexible connection structure - Google Patents
Relay with auxiliary contact switch flexible connection structure Download PDFInfo
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- CN218826872U CN218826872U CN202223296924.XU CN202223296924U CN218826872U CN 218826872 U CN218826872 U CN 218826872U CN 202223296924 U CN202223296924 U CN 202223296924U CN 218826872 U CN218826872 U CN 218826872U
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- relay
- iron core
- auxiliary contact
- frame
- contact
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Abstract
The utility model discloses a relay with an auxiliary contact switch flexible connection structure, which comprises a movable iron core, wherein the movable iron core is connected with a push rod, the top of the push rod is provided with a contact rack and a movable sheet, and a leading-out end is arranged above the movable sheet; the touch head frame is connected with a flexible structure, and a microswitch is arranged above the flexible structure; and under the disconnection state of the relay, the distance between the contact frame and the moving plate is smaller than the distance between the flexible structure and the microswitch. The utility model discloses contact frame and micro-gap switch's buffer stroke has been increased for relay main contact is when the switch-on, and the detection that can be safe goes out the break-make state of relay by effective reliable switch-on of auxiliary contact. The use and the detection of the relay are safer and more reliable.
Description
Technical Field
The utility model relates to a high voltage direct current relay technical field especially relates to a relay with auxiliary contact switch flexible connection structure.
Background
A relay is an electronic control device, which has a control system (also called an input loop) and a controlled system (also called an output loop), and is usually applied to an automatic control circuit, and it is actually an "automatic switch" that uses a small current to control a large current, and plays roles of automatic regulation, safety protection, switching circuit, and the like in the circuit. The auxiliary contact is a structure for people to safely detect whether the relay is switched on, so that the structure is particularly important for ensuring the conduction reliability of the auxiliary contact.
However, the conventional switch structure for switching on the auxiliary contact of the relay is shown in fig. 1 and 2, and includes a leading-out terminal 1, a movable piece 2, a movable iron core 3, a micro switch 4, a contact frame 5, and an auxiliary contact pin 7. The action process is as follows:
(1) when the coil is electrified, the movable iron core acts, when the coil moves by a stroke of 1.2mm, the movable piece is just contacted with the leading-out end, the load end of the relay is already connected, the contact frame just contacts the micro switch button at the moment, the micro switch is not connected (the micro switch button needs to be pressed by 0.5mm to be connected), and the auxiliary contact pin is not connected. This misleads the decision if the auxiliary contacts are not conducting to be tested, and could cause a safety hazard if the relay load terminal is touched by hand or by a tool at this time.
(2) When the relay is in an off state, if the contact frame is thickened by 0.5mm on the basis, the distance between the contact frame and the microswitch button is 0.7mm at the moment. When the coil is electrified, the movable iron core acts, when the coil moves by 1.2mm, the movable piece is just contacted with the leading-out end, the load end of the relay is already connected, the contact frame just conducts the micro switch (the movable distance of the micro switch button is still 1mm-0.5mm =0.5 mm), and the auxiliary contact is also in a conducting state.
The movable iron core can continue to walk to the rest 0.8mm (2 mm-1.2 mm) until the movable iron core is closed, the contact frame can also follow to continue to walk to 0.8mm, the movable distance of the micro switch button is only 0.5mm at the moment, so when the relay is completely closed, the contact frame can interfere with the micro switch body by 0.8mm-0.5mm =0.3mm, the interference can cause the breakage of the contact frame, and the whole auxiliary contact is not conducted. This can also mislead the judgment, causing a safety accident.
In the conventional relay, when the main contact is just connected, the auxiliary contact is not connected, so that safety accidents are easily caused. And if the one side that contacts the micro-gap switch with the contact frame thickens, when the main contact just switched on, the auxiliary contact also can switch on, but still can walk one section overstroke behind the main contact switch-on, and the contact frame can interfere the micro-gap switch this moment, can lead to the contact frame to have certain risk fracture, also leads to the incident easily.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a relay with auxiliary contact switch flexible connection structure. The utility model discloses contact frame and micro-gap switch's buffer stroke has been increased for relay main contact is when the switch-on, and the auxiliary contact can be effective reliable switch-on, the detection that can be safe goes out the break-make state of relay. The use and the detection of the relay are safer and more reliable.
The purpose of the utility model is realized through the following technical scheme:
a relay with an auxiliary contact switch flexible connection structure comprises a movable iron core, wherein the movable iron core is connected with a push rod, the top of the push rod is provided with a contact rack and a movable sheet, and a leading-out end is arranged above the movable sheet; the touch head frame is connected with a flexible structure, and a micro switch is arranged above the flexible structure; and under the disconnection state of the relay, the distance between the contact frame and the moving sheet is smaller than the distance between the flexible structure and the microswitch.
Further improvement, under the relay disconnection state, the distance between the contact frame and the moving plate is 1.2mm, and the distance between the flexible structure and the micro switch is 0.1mm.
The improved structure comprises a connecting box body with an opening at the top and one side, and an elastic sheet which is arranged obliquely upwards is connected to one side of the top of the connecting box body.
The improved structure is characterized in that the contact frame comprises a U-shaped connecting frame, the U-shaped connecting frame is connected with a trunk-shaped connecting rod, the trunk-shaped connecting rod is connected with a rectangular connecting block, and the connecting box body is adhered and fixed on the rectangular connecting block.
In a further improvement, the movable iron core is connected in the shell in a sliding manner, and a static iron core is arranged above the movable iron core; a first spring is arranged between the movable iron core and the static iron core, an insulating sheet is arranged above the static iron core, and the pushing rod penetrates through the static iron core and the insulating sheet to be connected with the movable sheet in a sliding manner and is fixedly connected with the contact head frame; a second spring is arranged between the moving plate and the insulating plate; an insulating cover is arranged above the shell, leading-out ends are respectively fixed on two sides of the insulating cover, and the micro switch is fixed on the insulating cover; the movable iron core is wound with a coil.
In a further improvement, the microswitch is electrically connected with an auxiliary contact pin fixed on the insulating cover.
The utility model has the advantages that:
the utility model discloses a contact frame flexible structure is stronger than current contact frame structure in the reliability on the problem of the supplementary contact switch-on of help. Can effectively improve the operation safety.
Drawings
The present invention is further explained by using the attached drawings, but the content in the attached drawings does not constitute any limitation to the present invention.
Fig. 1 is a schematic front sectional view of a conventional relay;
fig. 2 is a schematic cross-sectional view of the back surface of a conventional relay;
FIG. 3 is a schematic diagram of the back cross-sectional structure of the present invention;
FIG. 4 is a schematic view of the connection of the flexible structure to the contact holder;
fig. 5 is a schematic sectional structure view of the whole structure front of the present invention;
fig. 6 is a schematic sectional view of the side of the overall structure of the present invention.
The terminal 1, the moving plate 2, the moving iron core 3, the micro switch 4, the contact frame 5, the U-shaped connecting frame 51, the trunk-shaped connecting rod 52, the rectangular connecting block 53, the flexible structure 6, the auxiliary contact pin 7, the connecting box 8, the elastic sheet 9, the shell 10, the static iron core 11, the first spring 12, the insulating sheet 13, the insulating cover 14, the push rod 15, the coil 16 and the second spring 17 are connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 5 and 6, the relay with the auxiliary contact switch flexible connection structure comprises a housing 10, wherein a movable iron core 3 is slidably connected in the housing 10, the movable iron core 3 is connected with a push rod 15, a contact frame 5 and a movable piece 2 are mounted at the top of the push rod 15, and a leading-out terminal 1 is mounted above the movable piece 2; the touch head frame 5 is connected with a flexible structure 6, and a microswitch 4 is arranged above the flexible structure 6; and in the off state of the relay, the distance between the contact frame 5 and the moving plate 2 is smaller than the distance between the flexible structure and the microswitch.
A static iron core 11 is arranged above the movable iron core 3; a first spring 12 is arranged between the movable iron core 3 and the static iron core 11, an insulating sheet 13 is arranged above the static iron core 11, and a push rod 15 is connected with the movable piece 2 in a sliding manner through the static iron core 11 and the insulating sheet 13 and is fixedly connected with the head frame 5; a second spring 17 is arranged between the moving plate 2 and the insulating plate 13; an insulating cover 14 is arranged above the shell 10, leading-out terminals 1 are respectively fixed on two sides of the insulating cover 14, and the microswitch 4 is fixed on the insulating cover 14; the movable iron core 3 is externally wound with a coil 16. The microswitch 4 is electrically connected with an auxiliary contact pin 7 fixed on an insulating cover 14.
In the present embodiment, in the off state of the relay, the distance between the contact frame 5 and the moving plate 2 is 1.2mm, and the distance between the flexible structure and the micro switch is 0.1mm.
As shown in fig. 4, the flexible structure 6 includes a connection box body 8 with an opening at the top and one side, and a spring plate 9 arranged obliquely upwards is connected to one side of the top of the connection box body 8. The spring structure may be used instead of the above-described one, but it is difficult to fix the spring structure and is not stable enough.
As shown in fig. 3 and 4, the contact holder 5 includes a U-shaped connecting frame 51, the U-shaped connecting frame 51 is connected with a trunk-shaped connecting rod 52, the trunk-shaped connecting rod 52 is connected with a rectangular connecting block 53, and the connecting box 8 is adhered and fixed on the rectangular connecting block 53.
The structure and the action of the contact frame of the utility model are shown in figure 3:
when the switch is in an off state, the flexible structure on the contact frame and the button of the microswitch have only a gap of 0.1mm. When the coil is electrified, the movable iron core acts, when the coil moves by a stroke of 1.2mm, the movable piece is just contacted with the leading-out end, the load end of the relay is switched on, the flexible structure on the contact frame and the button of the microswitch are mutually compressed by 1.1mm1.2mm-0.1mm and are larger than the conduction stroke of the microswitch button by 0.5mm, the microswitch is switched on at the moment, and the whole auxiliary contact is also switched on with the main contact end at the same time.
The movable iron core can continuously move to the rest 0.8mm (2 mm-1.2 mm) until the movable iron core is closed, the contact frame can also continuously move to 0.8mm (when the movable iron core is in an off state, the total movable stroke between the contact frame and the micro switch is 1.2mm contact gap-0.12 mm material thickness +1mm micro switch button movable distance =2.08 mm), and finally when the relay is completely closed, a gap of 0.08mm (2.08 mm-1.2mm-0.8 mm) is left between the contact frame structure and the micro switch, so that interference can not be caused.
And (4) conclusion:
the utility model discloses a contact frame flexible structure is stronger than current contact frame structure in the reliability on the problem of the supplementary contact switch-on of help. Can effectively improve the operation safety.
It should be finally noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit the protection scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A relay with an auxiliary contact switch flexible connection structure comprises a movable iron core (3), wherein the movable iron core (3) is connected with a push rod (15), a contact frame (5) and a movable sheet (2) are installed at the top of the push rod (15), and a leading-out end (1) is installed above the movable sheet (2); the touch screen is characterized in that the touch screen frame (5) is connected with a flexible structure (6), and a microswitch (4) is arranged above the flexible structure (6); and in the off state of the relay, the distance between the contact frame (5) and the moving plate (2) is smaller than the distance between the flexible structure and the microswitch.
2. Relay with flexible connection of an auxiliary contact switch according to claim 1, characterised in that the distance between the contact carrier (5) and the moving plate (2) is 1.2mm and the distance between the flexible structure and the microswitch is 0.1mm in the open state of the relay.
3. The relay with the flexible connection structure of the auxiliary contact switch according to claim 1, wherein the flexible structure (6) comprises a connection box body (8) with an opening at the top and one side, and a spring plate (9) which is arranged obliquely upwards is connected to one side of the top of the connection box body (8).
4. Relay with flexible connection of an auxiliary contact switch according to claim 3, characterized in that the contact carrier (5) comprises a U-shaped connecting frame (51), the U-shaped connecting frame (51) is connected with a trunk-shaped connecting rod (52), the trunk-shaped connecting rod (52) is connected with a rectangular connecting block (53), and the connecting box (8) is adhesively fixed to the rectangular connecting block (53).
5. The relay with the auxiliary contact switch flexible connection structure as claimed in claim 1, wherein the movable iron core (3) is slidably connected in the housing (10), and a stationary iron core (11) is installed above the movable iron core (3); a first spring (12) is arranged between the movable iron core (3) and the static iron core (11), an insulating sheet (13) is arranged above the static iron core (11), and a push rod (15) penetrates through the static iron core (11) and the insulating sheet (13) to be connected with the movable sheet (2) in a sliding manner and is fixedly connected with the contact head frame (5); a second spring (17) is arranged between the moving plate (2) and the insulating plate (13); an insulating cover (14) is arranged above the shell (10), leading-out ends (1) are respectively fixed on two sides of the insulating cover (14), and the micro switch (4) is fixed on the insulating cover (14); the movable iron core (3) is externally wound with a coil (16).
6. Relay with flexible connection of an auxiliary contact switch according to claim 4, characterized in that the microswitch (4) is electrically connected to an auxiliary contact pin (7) fixed to the insulating cover (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223296924.XU CN218826872U (en) | 2022-12-09 | 2022-12-09 | Relay with auxiliary contact switch flexible connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223296924.XU CN218826872U (en) | 2022-12-09 | 2022-12-09 | Relay with auxiliary contact switch flexible connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218826872U true CN218826872U (en) | 2023-04-07 |
Family
ID=87256286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223296924.XU Active CN218826872U (en) | 2022-12-09 | 2022-12-09 | Relay with auxiliary contact switch flexible connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218826872U (en) |
-
2022
- 2022-12-09 CN CN202223296924.XU patent/CN218826872U/en active Active
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