CN106952785B - Rectifier relay with micro switch - Google Patents

Abstract

The invention relates to the technical field of relays, and particularly discloses a rectifier relay with a microswitch, which comprises a base, an electromagnetic coil, a reset elastic sheet, an armature and a rectifier bridge, wherein the electromagnetic coil and the reset elastic sheet are arranged on the base; the micro switch is provided with a switch elastic sheet and two signal wires which protrude out of the base; during the use, the rectifier bridge is used for converting the alternating voltage of external alternating current power supply input into the direct current voltage of rectifier bridge output, and the direct current voltage of rectifier bridge output is applyed on solenoid and can be so that solenoid drive armature rotates, and solenoid drive's armature butt switch shell fragment and then trigger micro-gap switch for micro-gap switch realizes operating condition's automatic switch-over, thereby reaches the purpose that the customer directly carries out signal monitoring or micro-gap switch automatic switching function to the relay.

Description

A kind of rectifier relay with micro switch

technical field

The invention relates to the technical field of relays, and in particular discloses a rectifier relay with a micro switch.

Background technique

As the "automatic switch" in the circuit, the relay is already one of the essential basic components in many electrical products. In real life, electricity is mainly divided into two forms: direct current and alternating current. Since direct current is easy to use and easy to control, it is widely used in the control of various electrical components such as relays. When the external power is alternating current, at this time It is necessary to utilize a power conversion mechanism to convert alternating current into direct current. The power conversion mechanism of the existing relay has a complex structure and is extremely inconvenient to use. After the relay is normally energized, the user often cannot directly monitor whether the relay is working normally, which also causes a lot of troubles to the signal monitoring of electrical products. In addition, most of the existing switches need to be manually triggered by the user. Manually triggering the switch not only reduces the efficiency of switch function conversion, but also brings risks of electric shock to the user.

Contents of the invention

In order to overcome the shortcomings and deficiencies in the prior art, the object of the present invention is to provide a rectifier relay with a micro switch, which uses a rectifier bridge to easily convert the AC voltage into a DC voltage, and uses the rotating armature to trigger the micro switch. So as to achieve the customer's purpose of monitoring the relay signal or the purpose of the automatic conversion function of the micro switch.

In order to achieve the above object, a rectifier relay with a micro switch of the present invention includes a base, an electromagnetic coil installed on the base and a reset shrapnel, and an armature connected to the base by rotation, and the electromagnetic coil is used to drive the armature to rotate , the reset shrapnel is used to drive the armature back to its original position; it also includes a rectifier bridge and a micro switch installed on the base, the output end of the rectifier bridge is connected to the electromagnetic coil, and the input end of the rectifier bridge is used to conduct external power ; The micro switch is provided with a switch shrapnel and two signal lines protruding from the base, and the armature driven by the electromagnetic coil abuts the switch shrapnel to trigger the micro switch.

Preferably, the rectifier relay with a micro switch also includes a piezoresistor, and the piezoresistor is connected in parallel to the rectifier bridge, and the output terminal of the piezoresistor and the rectifier bridge are connected in parallel to the electromagnetic coil for conduction, and the piezoresistor The input terminal after the parallel connection of the resistor and the rectifier bridge is connected to the external power supply.

Preferably, the rectifier relay with a micro switch further includes a built-in circuit board, the built-in circuit board is installed on the base, and the rectifier bridge and the piezoresistor are all installed on the built-in circuit board.

Preferably, the base is detachably connected with a casing, and the electromagnetic coil, reset spring, armature, rectifier bridge, micro switch, piezoresistor and built-in circuit board are all located in the casing.

Preferably, the electromagnetic coil includes a skeleton, an iron core installed in the skeleton, a coil unit wound around the skeleton, and the coil unit is arranged around the iron core; the base is provided with a first blind slot, and the built-in circuit board is provided with a first card slot, one end of the frame is accommodated in the first blind slot, the other end of the frame runs through the first slot, the built-in circuit board abuts against the other end of the frame, and the other end of the frame is provided with two clamping blocks spaced apart from each other, the built-in The circuit board is clamped between two clamping blocks.

Preferably, the base is also equipped with a yoke, the yoke includes a first plate and a second plate bent and extended from the first plate, the first plate is installed between one end of the frame and the base Between, one end of the iron core is connected to the first plate, and the end of the second plate away from the first plate protrudes from the other end of the skeleton; the middle part of the armature is rotatably connected to the end of the second plate away from the first plate, The other end of the iron core is used to attract one end of the armature, the other end of the armature is provided with a through hole, one end of the reset elastic piece is installed on the base or/and the yoke, and the other end of the reset elastic piece is provided with first elastic pieces spaced apart from each other and The second elastic piece, the first elastic piece and the second elastic piece abut against two opposite side walls of the through hole respectively.

Preferably, the end of the second plate away from the first plate is provided with a second blind groove, the armature is accommodated in the second blind groove, the armature is provided with two rotating parts spaced apart from each other, and the two rotating parts are respectively used On both sides abutting against the second plate body, the ends of the two rotating parts close to each other are provided with a first arcuate surface, and the free end of the first elastic piece is clamped by the armature.

Preferably, the base is provided with a partition, the second board is located between the partition and the frame, one end of the reset spring is accommodated between the partition and the second board, and one end of the reset spring is provided with a holding piece , the holding piece is used to abut against the partition board or/and the second board body.

Preferably, the base is equipped with a fixed plate, the fixed plate is located between the partition plate and the built-in circuit board, the micro switch is installed on the fixed plate, the fixed plate is provided with a fixed column, and the micro switch is provided for accommodating and fixing The fixing hole of the column, one end of the armature is provided with a convex strip for abutting against the switch shrapnel.

Preferably, the base is equipped with two output terminals, the other end of the armature is movably connected with a push piece, the push piece and the second board are respectively located on both sides of the partition, and the push piece is equipped with a For the elastic reed of the terminal, the free end of the second elastic piece is provided with a second arc surface for abutting against the push piece, and the push piece is provided with a third arc surface for abutment against the second board.

Beneficial effects of the present invention: in actual use, the external AC power supply is connected to the input terminal of the rectifier bridge, and through the rectification function of the rectifier bridge, the AC voltage input by the AC power supply is converted into a DC voltage output by the rectifier bridge, and the DC voltage output by the rectifier bridge The voltage applied to the electromagnetic coil can make the electromagnetic coil drive the armature to rotate, and the armature driven by the electromagnetic coil touches the switch shrapnel and then triggers the micro switch, so that the micro switch realizes automatic switching of the working state, so that the customer can directly monitor the signal of the relay The purpose or the purpose of the micro switch automatic conversion function.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram after the base and the casing of the present invention are separated;

Fig. 3 is a schematic diagram of an exploded structure of the present invention;

Fig. 4 is a schematic diagram of an exploded structure of another perspective of the present invention;

Fig. 5 is a three-dimensional structural schematic diagram of the reset elastic piece, the armature, the yoke and the push piece of the present invention.

Reference signs include:

1—base 2—electromagnetic coil 3—reset shrapnel

4—armature 5—rectifier bridge 6—micro switch

7—Switch shrapnel 8—Signal line 9—Varistor

11—Built-in circuit board 12—Case 13—Skeleton

14—iron core 15—the first blind slot 16—the first card slot

17—yoke 18—through hole 19—first shrapnel

21—the second shrapnel 22—the second blind groove 23—the first arc surface

24—card board 25—second card slot 26—partition plate

27—fixing plate 28—fixing column 29—fixing hole

31—Protruding strip 32—Output terminal 33—Elastic reed

34—push piece 35—the second arc surface 36—the third arc surface.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention.

Please refer to Figures 1 to 4, a rectifier relay with a micro switch of the present invention includes a base 1, an electromagnetic coil 2 installed on the base 1 and a reset shrapnel 3, which are rotatably connected to the base 1 The armature 4 is made of insulating plastic, the base 1 is made of insulating plastic, the electromagnetic coil 2 is used to drive the armature 4 to rotate relative to the base 1, and the reset shrapnel 3 is used to drive the armature 4 to move in the reverse direction to return to the original position; when the electromagnetic coil 2 is energized, the electromagnetic The coil 2 generates a magnetic force, which can attract the armature 4 and then make the armature 4 rotate relative to the base 1, and the armature 4 compresses and resets the shrapnel 3 during the rotation; when the electromagnetic coil 2 is powered off, the electromagnetic coil 2 loses its magnetic force. Then attract the armature 4, and the reset elastic piece 3 drives the armature 4 to reversely rotate and return to the original position under the action of its own elastic recovery force.

The rectifier relay with microswitch of the present invention also includes a rectifier bridge 5 and a microswitch 6 installed on the base 1, the output end of the rectifier bridge 5 is connected to the electromagnetic coil 2, and the input end of the rectifier bridge 5 For turning on the external power supply, preferably, the rectifier bridge 5 is a full bridge, and according to actual needs, the two ends of the electromagnetic coil 2 can be respectively connected with two coil terminals connected to the output end of the rectifier bridge 5, and the base 1 is equipped with two input terminals that are respectively connected to the input end of the rectifier bridge 5; the micro switch 6 is provided with a switch shrapnel 7 and two signal lines 8 protruding from the base 1, when the electromagnetic coil 2 is energized , the electromagnetic coil 2 generates a magnetic force, and the magnetic force attracts the armature 4 so that the armature 4 rotates relative to the base 1 , and the rotating armature 4 abuts against the switch shrapnel 7 to trigger the micro switch 6 .

During actual use, the external AC power supply is connected to the input terminal of the rectifier bridge 5, and through the rectification action of the rectifier bridge 5, the AC voltage input by the AC power supply is converted into a DC voltage output by the rectifier bridge 5, and the DC voltage output by the rectifier bridge 5 is applied On the electromagnetic coil 2, the electromagnetic coil 2 can drive the armature 4 to rotate, and the armature 4 driven by the electromagnetic coil 2 touches the switch shrapnel 7 and then triggers the micro switch 6, so that the micro switch 6 realizes automatic switching of the working state. After the switch 6 is triggered, it means that the relay is in a normal working state, and there is no need for the operator to manually trigger the micro switch 6, so as to achieve the purpose of the customer directly monitoring the signal of the relay or the purpose of the automatic conversion function of the micro switch 6.

The described rectifier relay with microswitch also comprises piezoresistor 9, and piezoresistor 9 is connected in parallel on the rectifier bridge 5, and the output end after piezoresistor 9, rectifier bridge 5 are connected in parallel is connected with two coil terminals via two coil terminals. The electromagnetic coil 2 is connected and turned on, and the input end of the parallel connection of the piezoresistor 9 and the rectifier bridge 5 is turned on with the external power supply through the input terminal. The varistor 9 is used to protect the rectifier bridge 5. When the input voltage of the AC power source exceeds the rated input voltage of the relay, the varistor 9 realizes a short circuit to the rectifier bridge 5, so as to prevent the input voltage of the relay input exceeding the rated voltage from burning the rectifier The bridge 5 prolongs the service life of the rectifier bridge 5, thereby prolonging the service life of the relay.

The rectifier relay with microswitch also includes a built-in circuit board 11, the built-in circuit board 11 is installed on the base 1, the rectifier bridge 5 and the piezoresistor 9 are all installed on the built-in circuit board 11, the actual manufacturing When assembling, the built-in circuit board 11, the rectifier bridge 5 and the piezoresistor 9 form an independent rectifier unit. When assembling, the built-in circuit board 11 of the rectifier unit is installed on the base 1, and then the coil terminals and input terminals are welded Just put it on the corresponding golden finger on the built-in circuit board 11 to help improve the production and assembly efficiency of the relay.

The base 1 is detachably connected with a casing 12, the casing 12 is also made of insulating plastic, the electromagnetic coil 2, the reset shrapnel 3, the armature 4, the rectifier bridge 5, the micro switch 6, the piezoresistor 9 and The built-in circuit boards 11 are all located in the casing 12 . It prevents external dust and other sundries from entering between the various components of the relay of the present invention and affects the normal use of the relay, prolongs the service life of the relay, and improves the performance of the relay.

The electromagnetic coil 2 includes a skeleton 13, an iron core 14 installed in the skeleton 13, and a coil unit wound outside the skeleton 13. The skeleton 13 is also made of insulating plastic, and the coil unit is arranged around the iron core 14; A first blind groove 15 is provided, and the first blind groove 15 is recessed from the upper end of the base 1, and the built-in circuit board 11 is provided with a first card groove 16, and one end of the skeleton 13 is accommodated in the first blind groove 15, The other end of the frame 13 runs through the first slot 16. During actual assembly, one end of the frame 13 of the electromagnetic coil 2 is first put into the first blind slot 15, and then the built-in circuit board 11 is installed on the base 1. Then solder the coil terminals and input terminals to the built-in circuit board 11. At this time, the built-in circuit board 11 is in contact with the other end of the frame 13, and the frame 13 is clamped by the cooperation between the base 1 and the built-in circuit board 11, effectively preventing The skeleton 13 falls off from the base 1 . In this embodiment, the other end of the skeleton 13 is provided with two clamping blocks spaced apart from each other, and the built-in circuit board 11 is clamped between the two clamping blocks, and the cooperation between the two clamping blocks and the built-in circuit board 11 prevents the skeleton 13 swings on base 1.

The base 1 is also equipped with a yoke 17, the yoke 17 includes a first plate body and a second plate body bent and extended from the first plate body, preferably, the first plate body and the second plate body are vertically arranged , the yoke 17 is roughly L-shaped, the first plate is installed between one end of the frame 13 and the base 1, one end of the iron core 14 is connected to the first plate, and the second plate is far away from the end of the first plate Protrude from the other end of the skeleton 13; the middle part of the armature 4 is rotatably connected to the end of the second plate away from the first plate, and the other end of the iron core 14 is used to attract one end of the armature 4, when the other end of the iron core 14 After sucking the armature 4, the armature 4 connects the second plate body of the yoke 17 and the other end of the iron core 14. At this time, the iron core 14, the yoke 17, and the armature 4 form a closed loop, and the electromagnetic coil 2 is bound by the closed loop to generate The magnetic induction lines reduce the energy loss of the magnetic field generated by the electromagnetic coil 2, thereby enhancing the magnetic attraction force generated by the electromagnetic coil 2.

Please refer to Figures 1 to 5, the other end of the armature 4 is provided with a through hole 18, the through hole 18 runs through the armature 4, and one end of the reset elastic piece 3 is installed on the base 1 or/and on the yoke 17, and the reset elastic piece The other end of 3 is provided with a first elastic piece 19 and a second elastic piece 21 spaced apart from each other. Preferably, the first elastic piece 19 and the second elastic piece 21 protrude in a direction away from each other. The first elastic piece 19 and the second elastic piece 21 respectively abut on two opposite side walls of the through hole 18 . When the electromagnetic coil 2 attracts the armature 4 so that the armature 4 rotates relative to the second plate body, the rotating armature 4 squeezes the first elastic piece 19 and the second elastic piece 21, so that the first elastic piece 19 and the second elastic piece 21 are moved toward each other. Compression, so that the reset elastic piece 3 has an elastic recovery force. When the electromagnetic coil 2 is powered off, the first elastic piece 19 and the second elastic piece 21 move away from each other under the action of the elastic recovery force, so that the armature 4 is reversed. Turn to return to original position.

The end of the second plate away from the first plate is provided with a second blind groove 22, the second blind groove 22 is recessed from the end face of the second plate, and the armature 4 is accommodated in the second blind groove 22, The second blind groove 22 is used to limit the position of the armature 4 to prevent the armature 4 from moving left and right; the armature 4 is provided with two rotating parts spaced apart from each other, and the two rotating parts are respectively used to abut the left and right sides of the second plate body One end of the two rotating parts close to each other is provided with a first arcuate surface 23, when the armature 4 rotates relative to the second plate body, relative rolling occurs between the first arcuate surface 23 and the second plate body, compared with Relative sliding occurs between the two, reducing the friction between the armature 4 and the second plate, ensuring that the armature 4 can rotate relatively to the second plate smoothly; the free end of the first shrapnel 19 is clamped on the top surface of the armature 4 Above, when the armature 4 is loaded into the second blind groove 22 of the second plate, the first elastic piece 19 clamps the armature 4 to prevent the armature 4 from falling off from the second plate.

The base 1 is provided with a clamping plate 24, and the second plate body is provided with a second clamping groove 25. The free end of the clamping plate 24 protrudes into the second clamping groove 25, and the clamping plate 24 and the second clamping groove are used to 25 to ensure that the yoke 17 is stably positioned on the base 1, preventing the normal use of the relay from being affected by the relative movement between the yoke 17 and the base 1.

The base 1 is provided with a partition 26. In this embodiment, the clamping plate 24 and the partition 26 are connected together, and the second board is located between the partition 26 and the skeleton 13. In this embodiment, the partition 26 It is spaced apart from and parallel to the built-in circuit board 11 , and the second board and frame 13 are clamped by the cooperation of the partition plate 26 and the built-in circuit board 11 to ensure that the yoke 17 and the electromagnetic coil 2 are stably fixed on the base 1 . One end of the reset elastic piece 3 is accommodated between the partition 26 and the second plate body, and one end of the reset elastic piece 3 is fixed by the cooperation between the partition plate 26 and the second plate body, and one end of the reset elastic piece 3 is provided with a clamping piece , the clamping piece is used to abut against the partition 26 or/and the second plate body, and the clamping piece is used to increase the interference force between the reset elastic piece 3 and the base 1 or/and the yoke 17, preventing the reset elastic piece 3 from The base 1 and the yoke 17 fall off.

The base 1 is equipped with a fixed plate 27, the fixed plate 27 is also made of insulating plastic, the fixed plate 27 is located between the partition plate 26 and the built-in circuit board 11, and the micro switch 6 is installed on the free end of the fixed plate 27 Above, the fixed plate 27 is provided with a fixed column 28, and the micro switch 6 is provided with a fixed hole 29 for accommodating the fixed column 28, and the micro switch 6 is installed on the fixed plate 27 by cooperation of the fixed column 28 and the fixed hole 29; One end of the armature 4 is provided with a protruding strip 31 for abutting against the switch elastic piece 7. When the electromagnetic coil 2 attracts the armature 4 so that the armature 4 rotates relative to the second plate, one end of the armature 4 faces the direction close to the other end of the iron core 14. Move until one end of the armature 4 is adsorbed on the other end of the iron core 14. During this process, the convex strip 31 moves together with the armature 4, and the moving convex strip 31 touches and pushes the switch shrapnel 7 to move, thereby triggering the micro switch 6 .

The base 1 is equipped with two output terminals 32, and the other end of the armature 4 is movably connected with a push piece 34. The push piece 34 and the second plate body are respectively located on the left and right sides of the partition 26. The push piece 34 is installed with a useful On the elastic reed 33 connected to the two output terminals 32, the free end of the second elastic piece 21 is provided with a second circular arc surface 35 for abutting against the push piece 34. When the armature 4 rotates relative to the yoke 17, the second elastic piece 21 The relative rolling between the second arc surface 35 and the push piece 34, compared with the relative sliding between the second elastic piece 21 and the push piece 34, reduces the wear between the second elastic piece 21 and the push piece 34, and prolongs the push piece 34 and the service life of reset shrapnel 3.

The push piece 34 is provided with a third arcuate surface 36 for abutting against the second plate body. In actual use, when the elastic reed 33 contacts the two output terminals 32, the third arcuate surface 36 abuts against the second plate. Connected to the second board, then the push piece 34 continues to rotate, so that the elastic reed 33 is bent and deformed, and the elastic recovery force of the elastic reed 33 itself is used to increase the contact force between the elastic reed 33 and the output terminal 32, Ensure that the elastic reed 33 can be in stable contact with the output terminal 32; during the bending and deformation process of the elastic reed 33, relative rolling occurs between the third arc surface 36 of the push piece 34 and the second plate body, compared with Relative sliding occurs between the push piece 34 and the second plate body, which reduces the wear between the push piece 34 and the second plate body, prolongs the service life of the push piece 34 and the yoke 17, and further prolongs the service life of the relay.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.

Claims (6)

1. a kind of rectifier relay with microswitch, including pedestal are installed in the electromagnetic coil and reseting shrapnel of pedestal, turn The dynamic armature for being connected to pedestal, electromagnetic coil is for driving armature to rotate, and reseting shrapnel is for driving armature to set back；Also wrap The rectifier bridge and microswitch for being installed in pedestal are included, the output end of rectifier bridge connect conducting, the input of rectifier bridge with electromagnetic coil It holds for extraneous power supply to be connected；Microswitch is equipped with switch shrapnel and stretches out two signal wires of pedestal, via electromagnetic wire The armature of circle driving abuts switch shrapnel and then triggers microswitch；

The rectifier relay with microswitch further includes piezoresistor, and piezoresistor is parallel to rectifier bridge, pressure-sensitive Output end after resistor, rectifier bridge parallel connection connect conducting, the input terminal after piezoresistor, rectifier bridge parallel connection with electromagnetic coil It is connected with extraneous power supply；

The rectifier relay with microswitch further includes internal circuit board, and internal circuit board is installed in pedestal, rectifier bridge, Piezoresistor is assembled on internal circuit board；

The coil unit that the electromagnetic coil includes skeleton, is installed in intraskeletal iron core, is wound in skeleton, coil unit are surround Iron core is arranged；Pedestal is provided with the first blind slot, and internal circuit board is equipped with the first card slot, and one end of skeleton is located in the first blind slot Interior, the other end of skeleton runs through the first card slot, and internal circuit board is connected to the other end of skeleton, and the other end of skeleton is equipped with each other Two fixture blocks at interval, internal circuit board are held between two fixture blocks；It is characterized in that：

The pedestal is also installed with yoke, and yoke includes the first plate body and bends the second plate body of extension from the first plate body, and first Plate body is installed between one end of skeleton and pedestal, and one end of iron core is connect with the first plate body, and the second plate body is far from the first plate body One end stretch out the other end of skeleton；The one end of the second plate body far from the first plate body, iron core are rotationally connected in the middle part of armature The other end be used to attract one end of armature, the other end of armature is equipped with through-hole, one end of reseting shrapnel be installed in pedestal or/and Yoke, the other end of reseting shrapnel are equipped with the first shrapnel and the second shrapnel that are spaced, and the first shrapnel, the second shrapnel support respectively It is connected to the opposite two side walls of through-hole.

2. the rectifier relay according to claim 1 with microswitch, it is characterised in that：The pedestal is removably It is connected with case, electromagnetic coil, reseting shrapnel, armature, rectifier bridge, microswitch, piezoresistor and the equal position of internal circuit board In in case.

3. the rectifier relay according to claim 1 with microswitch, it is characterised in that：Second plate body is separate One end of first plate body is equipped with the second blind slot, and armature is located in the second blind slot, and armature is equipped with two rotation sections being spaced, Two rotation sections are respectively used to abut the both sides of the second plate body, and two rotation sections one end close to each other is both provided with the first circular arc The free end in face, the first shrapnel is fastened in armature.

4. the rectifier relay according to claim 3 with microswitch, it is characterised in that：The pedestal be equipped with every Plate, the second plate body is between partition board and skeleton, and one end of reseting shrapnel is located between partition board and the second plate body, reseting shrapnel One end be equipped with retaining sheet, retaining sheet is for abutting to partition board or/and the second plate body.

5. the rectifier relay according to claim 4 with microswitch, it is characterised in that：The pedestal is installed with solid Fixed board, fixed plate is between partition board and internal circuit board, and microswitch is installed in fixed plate, and fixed plate is equipped with fixed column, micro- Dynamic switch is equipped with the mounting hole for being installed with fixed column, and one end of armature is equipped with the raised line for abutting switch shrapnel.

6. the rectifier relay according to claim 4 with microswitch, it is characterised in that：The pedestal is installed with two The other end of a leading-out terminal, armature is connected with push jack, and push jack, the second plate body are located at the both sides of partition board, push jack dress Equipped with the elastic spring for being connected to two leading-out terminals, the free end of the second shrapnel is equipped with the second circular arc for abutting push jack Face, push jack are provided with the third arc surface for abutting the second plate body.