Clapper type relay

Abstract

The invention relates to a clapper-type relay which specifically comprises a base assembly, a magnetic circuit assembly installed on the upper portion of the base assembly, a support assembly fixedly connected to the upper portion of the magnetic circuit assembly, a quick-action switch fixedly connected to the support assembly, a contact assembly rotatably connected to the lower portion of the magnetic circuit assembly, and a spring connected to the upper portion of the magnetic circuit assembly. The top of the contact assembly is connected with the quick-acting switch through a cam, the contact assembly comprises an armature assembly, after the magnetic circuit assembly is powered on, electromagnetic force is generated between the magnetic circuit assembly and the contact assembly, the contact assembly is attracted to move in the direction of the magnetic circuit assembly and attracted together, the cam moves, a normally-open contact of the quick-acting switch is powered on, and a normally-closed contact of the quick-acting switch is powered off. When the electromagnetic force disappears, the contact assembly is far away from the magnetic circuit assembly under the action of rebound force of the spring, the cam is in contact with the quick-acting switch, the normally-open contact of the quick-acting switch is disconnected, and the normally-closed contact of the quick-acting switch is connected, the structure is simple and compact, the size is small, the electromagnetic force is large, and the switching speed of the normally-open contact and the normally-closed contact of the quick-acting switch is high, and the reliability is high.

Description

Technical Field

[0001] The present application belongs to the technical field of low-voltage electrical appliances, and specifically relates to a snap-on relay. Background Art

[0002] At present, there are many types of relay products on the market, but most of them are large in size and complex in structure, and the electromagnetic system of the relay is mainly of the screw type. During product research and development and design, the electromagnetic suction force is small, the electromagnetic system is large in size, and many parts are involved, which results in an increase in the R&D cycle, an increase in R&D costs, and inconveniences in installation, use, and production. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The invention provides a snap-on relay, which is used to solve the problems of the existing solenoid relay, such as complex structure, small electromagnetic attraction and large volume.

[0005] (II) Technical solution

[0006] In order to solve the above problems, the present invention provides a snap-on relay, including a base assembly, a magnetic circuit assembly, a bracket assembly, a contact assembly and a snap-action switch, wherein the magnetic circuit assembly is installed on the upper part of the base assembly, the upper part of the magnetic circuit assembly is fixedly connected to the bracket assembly, the bracket assembly is fixedly connected to the snap-action switch, the lower part of the contact assembly is rotatably connected to the lower part of the magnetic circuit assembly, the upper part is connected to the upper part of the magnetic circuit assembly through a reaction spring, the top of the contact assembly is connected to the snap-action switch through a cam, and the contact assembly includes an armature assembly. When the magnetic circuit assembly is connected After the power is turned on, an electromagnetic force is generated between the magnetic circuit assembly and the armature assembly, attracting the contact assembly to move toward the direction of the magnetic circuit assembly and to be attracted to the magnetic circuit assembly. At this time, the cam is displaced, the normally open contact of the snap-action switch is connected, and the normally closed contact is disconnected. When the power of the magnetic circuit assembly is disconnected, the electromagnetic force between the contact assembly and the magnetic circuit assembly disappears. Under the elastic force of the reaction spring, the contact assembly moves away from the magnetic circuit assembly. At this time, the cam contacts the snap-action switch, the normally open contact of the snap-action switch is disconnected, and the normally closed contact is connected.

[0007] Preferably, the magnetic circuit assembly includes a yoke, the side of the yoke is fixedly connected to the suppressor assembly, both ends of the suppressor assembly are provided with connecting terminals, the connecting terminals are connected to the coil, an iron core is provided in the middle of the coil, one end of the iron core is connected to the suppressor assembly, and the other end is close to the contact assembly.

[0008] Preferably, the bracket assembly includes a left bracket and a right bracket, the upper parts of the left bracket and the right bracket are fixedly connected to a mounting plate, the lower parts are fixedly connected to the yoke, and the mounting plate is fixedly connected to the quick-acting switch.

[0009] Preferably, the upper portion of the armature assembly is fixedly connected to the linkage plate, and the lower portion is rotatably connected to the yoke via a positioning plate.

[0010] Preferably, a spring seat is installed in the middle of the linkage plate, one end of the reaction spring is installed in the spring seat, and the other end is connected to the spring support above the yoke.

[0011] Preferably, the number of installed snap-action switches is not less than 1.

[0012] (III) Technical Effect

[0013] After the magnetic circuit assembly is connected to the power supply, the electromagnetic force generated attracts the contact assembly to move toward the direction of the magnetic circuit assembly and close it. The yoke iron seals the electromagnetic force generated by the electromagnetic coil inside to enhance the effect of the electromagnetic force. At this time, the cam shifts, the normally open contact of the snap-action switch is connected, and the normally closed contact is disconnected. When the magnetic circuit assembly is disconnected from the power supply, the electromagnetic force between the contact assembly and the magnetic circuit assembly disappears. Under the elastic force of the reaction spring, the contact assembly moves away from the magnetic circuit assembly. At this time, the cam contacts the snap-action switch, the normally open contact of the snap-action switch is disconnected, and the normally closed contact is connected. This structure is relatively simple and compact, with a small size, large electromagnetic attraction, fast conversion speed between the normally open contact and the normally closed contact of the snap-action switch, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0015] Figure 1 This is a front view of the snap-on relay provided in an embodiment of the present application.

[0016] Figure 2 A schematic diagram of the connection between the magnetic circuit assembly and the contact assembly provided in an embodiment of the present application.

[0017] Figure 3 A three-dimensional diagram of the snap-on relay provided in an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 1-base assembly, 2-fastener, 3-magnetic circuit assembly, 4-left bracket, 5-right bracket, 6-mounting plate, 7-snap-action switch, 8-yoke, 9-positioning plate, 10-coil, 11-armature assembly, 12-linkage plate, 13-iron core, 14-spring seat, 15-reaction spring, 16-spring support, 17-cam, 18-suppressor assembly, 19-terminal. Implementation

[0021] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the application embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of this application; it is obvious that the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application. Example:

[0022] Reference Figures 1 to 3 , attached Figure 1 This is a front view of the snap-on relay provided in the embodiment of the present application, Figure 2 A schematic diagram of the connection between the magnetic circuit assembly and the contact assembly provided in the embodiment of the present application, Figure 3 A three-dimensional diagram of a snap-on relay provided in an embodiment of the present application, as shown in the figure, the snap-on relay includes a base assembly 1, the upper part of the base assembly 1 is fixedly connected to a yoke 8, a suppressor assembly 18 is provided on the left side of the yoke 8, and is fixed to the yoke 8 by a fastener 2, and terminals 19 are provided at both ends of the suppressor assembly 18, and the terminals 19 are connected to a coil 10, one end of the iron core 13 in the middle of the coil is fixed to the suppressor assembly 18 by a fastener 2, and the other end is close to the direction of the armature assembly 11, and one end of the armature assembly 11 is connected to the linkage plate 12 is fixed by fastener 2, and the other end is rotatably connected with the lower part of yoke through positioning plate 9, and moves in the slot of yoke 8 in the form of rotating shaft. A cam 17 is installed above linkage plate 12. Cam 17 changes the state of snap-action switch 7 in contact with linkage plate 12 and armature assembly 11 as linkage plate 12 and armature assembly 11 move. A spring support 16 is fixed to the upper left part of yoke 8 through fastener 2, and a spring seat 14 is installed in the middle part of linkage plate 12. One end of reaction spring 15 is connected to spring support 16, and the other end is installed in spring seat 14.

[0023] The left side of the upper part of the yoke 8 is fixedly connected to the left bracket 4 by a fastener 2, and the right side is fixedly connected to the right bracket 5 by a fastener 2. One end of the mounting plate 6 is fixedly connected to the left bracket 4, and the other end is fixedly connected to the right bracket 5. A quick-acting switch 7 is fixedly installed on the upper part of the mounting plate 6. The number of quick-acting switches can be adjusted according to demand. When there are 2 or more quick-acting switches 7, they are installed side by side on the upper part of the mounting plate 6 along the direction of the left bracket 4 and the right bracket 5.

[0024] When the magnetic circuit assembly 3 composed of the suppressor assembly 18, the yoke 8, the coil 10, the terminal 19 and the iron core 13 is powered on, the coil 10 generates a magnetic field and magnetizes the iron core 13 installed therein, and an electromagnetic force is generated between the magnetic circuit assembly 3 and the armature assembly 11, which attracts the armature assembly 11 and the linkage plate 12 to rotate around the slot of the yoke 8, move closer to the iron core 13, and are attracted to the iron core 13. At the same time, the normally open contact of the snap-action switch 7 in contact with the cam 17 is connected, and the normally closed contact is disconnected, and the application After the control power supply voltage at both ends of the terminal 19 on the suppressor assembly 18 is disconnected, the coil 10 loses power, the magnetic field disappears, the electromagnetic force of the linkage block 12 and the armature assembly 11 fixed together disappears, and is released under the reaction force of the reaction spring 15. At the same time, the cam 17 on the linkage plate 12 contacts the quick-acting switch 7, the normally open contact of the quick-acting switch 7 is disconnected, and the normally closed contact is connected. The structure is relatively simple and compact, with a small size, a large electromagnetic attraction, a fast conversion speed between the normally open contact and the normally closed contact of the quick-acting switch, and high reliability.

[0025] It should be noted that the directions or positional relationships indicated by terms such as "longitudinal", "lateral", "inside", "outside", "left", "right", "upper", and "lower" are based on the directions or positional relationships shown in the drawings, or are the directions or positional relationships commonly placed when used in this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on this application.

[0026] It should also be noted that, unless otherwise clearly specified and limited, the terms "provided with", "opened with", etc. should be understood in a broad sense. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

Claims

1. A snap-on relay, characterized in that: The invention comprises a base assembly, a magnetic circuit assembly, a bracket assembly, a contact assembly and a snap-action switch. The magnetic circuit assembly is installed on the upper part of the base assembly. The upper part of the magnetic circuit assembly is fixedly connected to the bracket assembly. The bracket assembly is fixedly connected to the snap-action switch. The lower part of the contact assembly is rotatably connected to the lower part of the magnetic circuit assembly. The upper part is connected to the upper part of the magnetic circuit assembly through a reaction spring. The top of the contact assembly is connected to the snap-action switch through a cam. The contact assembly comprises an armature assembly. When the magnetic circuit assembly is powered on, the magnetic circuit assembly An electromagnetic force is generated between the armature assembly and the contact assembly, attracting the contact assembly to move toward the magnetic circuit assembly and be attracted to the magnetic circuit assembly. At this time, the cam is displaced, the normally open contact of the snap-action switch is connected, and the normally closed contact is disconnected. When the magnetic circuit assembly is disconnected from the power supply, the electromagnetic force between the contact assembly and the magnetic circuit assembly disappears. Under the elastic force of the reaction spring, the contact assembly moves away from the magnetic circuit assembly. At this time, the cam contacts the snap-action switch, the normally open contact of the snap-action switch is disconnected, and the normally closed contact is connected.

2. A snap-on relay according to claim 1, characterized in that: The magnetic circuit assembly includes a yoke, a side of the yoke is fixedly connected to a suppressor assembly, two ends of the suppressor assembly are provided with connecting terminals, the connecting terminals are connected to a coil, an iron core is provided in the middle of the coil, one end of the iron core is connected to the suppressor assembly, and the other end is close to the contact assembly.

3. A snap-on relay according to claim 2, characterized in that: The bracket assembly includes a left bracket and a right bracket. The upper parts of the left bracket and the right bracket are fixedly connected to a mounting plate, and the lower parts are fixedly connected to the yoke. The mounting plate is fixedly connected to the snap-action switch.

4. A snap-on relay according to claim 2, characterized in that: The upper part of the armature assembly is fixedly connected to the linkage plate, and the lower part is rotatably connected to the yoke through a positioning plate.

5. A snap-on relay according to claim 3, characterized in that: A spring seat is installed in the middle of the linkage plate, one end of the reaction spring is installed in the spring seat, and the other end is connected to the spring support above the yoke.

6. A snap-on relay according to any one of claims 1 to 5, characterized in that: The number of installed snap-action switches is not less than 1.

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