CN106935443B - Relay with rectification function - Google Patents

Abstract

The invention relates to the technical field of relays, and in particular discloses a relay with a rectifying function, comprising a base, an electromagnetic coil and a reset spring installed on the base, an armature rotatably connected to the base, the electromagnetic coil being used to drive the armature to rotate, and the reset spring being used to drive the armature to return to its original position; and also comprising a rectifier bridge, the output end of the rectifier bridge being connected and conducted with the electromagnetic coil, and the input end of the rectifier bridge being used to conduct an external power supply; in actual use, an external AC power supply is connected to the input end of the rectifier bridge, and after the rectifying effect 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 is applied to the electromagnetic coil to control the conduction or disconnection of the relay; the invention has a simple structure and is easy to use, and greatly improves the use performance of the relay.

Description

A relay with rectification function

technical field

The invention relates to the technical field of relays, and in particular discloses a relay with rectification function.

Background technique

As the "automatic switch" in the circuit, the relay is already one of the essential basic components in many electronic devices. 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 use a power conversion mechanism to convert AC power into DC power. The power conversion mechanism of the existing relay has a complex structure and is extremely inconvenient to use, which is not conducive to the improvement of the performance of the relay.

Contents of the invention

In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a relay with a rectification function, which has a simple structure and is easy to use, and greatly improves the performance of the relay.

In order to achieve the above object, a relay with a rectification function of the present invention includes a base, an electromagnetic coil installed on the base and a reset shrapnel, and a rotating armature connected to the base, and the electromagnetic coil is used to drive the armature to rotate and reset. The shrapnel is used to drive the armature to return to its original position; it also includes a rectifier bridge, the output terminal of the rectifier bridge is connected to the electromagnetic coil and the input terminal of the rectifier bridge is used to conduct external power supply.

Preferably, the relay with rectification function also includes a piezoresistor, 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 end of the rectifier bridge connected in parallel is connected to the external power supply.

Preferably, the relay with rectification function 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 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 clamping plate, the second plate body is provided with a second clamping slot, and the clamping plate protrudes into the second clamping slot.

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 two output terminals, the other end of the armature is equipped 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 As for the conductive piece of the terminal, the free end of the second elastic piece is provided with a second arc surface for abutting against the push piece.

Preferably, the push piece is movably connected to the other end of the armature, and the push piece is provided with a third arc surface for abutting against the second board; the conductive piece is an elastic reed, and the two output terminals are provided with static contacts , the elastic reed is provided with two movable contacts respectively for abutting against two static contacts.

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 A voltage is applied to the electromagnetic coil to control the conduction or disconnection of the relay; the invention has a simple structure, is convenient to use, and greatly improves the performance of the relay.

Description of drawings

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

Fig. 2 is the schematic diagram of the three-dimensional structure behind the hidden casing of the present invention;

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 application of the present invention;

Fig. 5 is a three-dimensional structural schematic view of the armature, the reset elastic piece, 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—varistor

7—built-in circuit board 8—skeleton 9—iron core

11—coil unit 12—the first blind slot 13—the first card slot

14—yoke 15—through hole 16—first shrapnel

17—the second shrapnel 18—the second blind groove 19—the first arc surface

21—Card plate 22—Push piece 23—Second card slot

24—partition plate 25—holding piece 26—second arc surface

27—the third arc surface 28—the casing.

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 Fig. 1 to Fig. 3, a kind of relay with rectification function according to the present invention includes a base 1, an electromagnetic coil 2 installed on the base 1 and a reset shrapnel 3, and an armature connected to the base 1 in rotation 4. The base 1 is made of insulating plastic, the electromagnetic coil 2 is used to drive the armature 4 to rotate, and the reset shrapnel 3 is used to drive the armature 4 to rotate in the opposite direction to return to its original position. When the electromagnetic coil 2 is energized, the electromagnetic coil 2 generates a magnetic force. The magnetic force 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 and no longer attracts the armature 4, resets The shrapnel 3 drives the armature 4 to reversely rotate and return to its original position under the action of its own elastic recovery force; it also includes a rectifier bridge 5, the output end of the rectifier bridge 5 is connected to the electromagnetic coil 2, and the input end of the rectifier bridge 5 is used for conduction External power supply, preferably, the rectifier bridge 5 is a full bridge, 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 The two input terminals that are connected to the input terminals of the rectifier bridge 5 are connected respectively.

During actual use, the external AC power supply is connected to the two input terminals connected to the input terminal of the rectifier bridge 5, and the AC power input from the outside world is rectified by the rectifier bridge 5 to convert the AC voltage input by the AC power supply into the rectifier bridge 5. The output DC voltage, the DC voltage output by the rectifier bridge 5 is applied to the electromagnetic coil 2 to control the conduction or disconnection of the relay; the present invention has a simple structure and is easy to use, greatly improving the performance of the relay.

The described relay with rectification function also includes piezoresistor 6, and piezoresistor 6 is connected in parallel on rectifier bridge 5, and the output terminal after piezoresistor 6, rectifier bridge 5 are connected in parallel passes two coil terminals and electromagnetic coil 2 is connected and turned on, and the input end of the parallel connection of the piezoresistor 6 and the rectifier bridge 5 is turned on with the external power supply through the input terminal. The varistor 6 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 6 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 relay with rectification function also includes a built-in circuit board 7, the built-in circuit board 7 is installed on the base 1, and the rectifier bridge 5 and the piezoresistor 6 are all installed on the built-in circuit board 7. During actual manufacture, The built-in circuit board 7, the rectifier bridge 5 and the varistor 6 form an independent rectification unit. When assembling, install the built-in circuit board 7 of the rectifier unit on the base 1, and then solder the coil terminals and input terminals to the built-in The corresponding golden finger on the circuit board 7 can be used to assist in improving the production and assembly efficiency of the relay.

The electromagnetic coil 2 includes a skeleton 8, an iron core 9 installed in the skeleton 8, a coil unit 11 wound on the outside of the skeleton 8, the skeleton 8 is also made of insulating plastic, and the coil unit 11 is arranged around the iron core 9; the base 1 is provided with a first blind slot 12, the first blind slot 12 is recessed from the upper end of the base 1, the built-in circuit board 7 is provided with a first card slot 13, and one end of the skeleton 8 is accommodated in the first blind slot 12 Inside, the other end of the frame 8 runs through the first slot 13. When actually assembling, first put one end of the frame 8 of the electromagnetic coil 2 into the first blind slot 12, and then install the built-in circuit board 7 on the base 1 , and then solder the coil terminals and input terminals to the built-in circuit board 7. At this time, the built-in circuit board 7 abuts against the other end of the frame 8, and uses the cooperation between the base 1 and the built-in circuit board 7 to clamp the frame 8. Effectively prevent the skeleton 8 from falling off from the base 1. In this embodiment, the other end of the skeleton 8 is provided with two clamping blocks spaced apart from each other, and the built-in circuit board 7 is clamped between the two clamping blocks, and the cooperation between the two clamping blocks and the built-in circuit board 7 prevents the skeleton 8 swings on base 1.

The base 1 is also equipped with a yoke 14. The yoke 14 includes a first plate and a second plate bent and extended from the first plate. Preferably, the first plate and the second plate are vertically arranged , the yoke 14 is roughly L-shaped, the first plate is installed between one end of the skeleton 8 and the base 1, one end of the iron core 9 is connected to the first plate, and the second plate is far away from the end of the first plate The other end of the skeleton 8 protrudes; 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 9 is used to attract one end of the armature 4, when the other end of the iron core 9 After sucking the armature 4, the armature 4 connects the second plate body of the yoke 14 with the other end of the iron core 9. At this time, the iron core 9, the yoke 14, 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 15, the through hole 15 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 14, and the reset elastic piece The other end of 3 is provided with a first elastic piece 16 and a second elastic piece 17 spaced apart from each other. Preferably, the first elastic piece 16 and the second elastic piece 17 protrude in a direction away from each other. The first elastic piece 16 and the second elastic piece 17 respectively abut against two opposite side walls of the through hole 15 . When the electromagnetic coil 2 attracts the armature 4 so that the armature 4 rotates relative to the second plate, the rotating armature 4 squeezes the first elastic piece 16 and the second elastic piece 17, so that the first elastic piece 16 and the second elastic piece 17 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 16 and the second elastic piece 17 move away from each other under the action of the elastic recovery force, so that the armature 4 is reversed. Turn back to original position.

The end of the second plate away from the first plate is provided with a second blind groove 18, the second blind groove 18 is recessed from the end face of the second plate, and the armature 4 is accommodated in the second blind groove 18. The second blind groove 18 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 arc surface 19, when the armature 4 rotates relative to the second plate body, relative rolling occurs between the first arc surface 19 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 16 is clamped on the top surface of the armature 4 Above, when the armature 4 is installed into the second blind slot 18 of the second plate, the first elastic piece 16 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 21, and the second plate body is provided with a second clamping groove 23. The free end of the clamping plate 21 protrudes into the second clamping groove 23, and the clamping plate 21 and the second clamping groove are used to 23 ensures that the yoke 14 is stably positioned on the base 1 and prevents the normal use of the relay from being affected by the relative movement between the yoke 14 and the base 1 .

The base 1 is provided with a partition 24. In this embodiment, the clamping plate 21 and the partition 24 are connected together, and the second board is located between the partition 24 and the skeleton 8. In this embodiment, the partition 24 It is spaced apart from and parallel to the built-in circuit board 7 , and the second board and frame 8 are clamped by the cooperation of the partition plate 24 and the built-in circuit board 7 to ensure that the yoke 14 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 plate 24 and the second plate body, and one end of the reset elastic piece 3 is fixed by the cooperation between the partition plate 24 and the second plate body, and one end of the reset elastic piece 3 is provided with a clamping piece 25. The clamping piece 25 is used to abut against the partition 24 or/and the second plate body, and the clamping piece 25 is used to increase the interference force between the reset elastic piece 3 and the base 1 or/and the yoke 14 to prevent reset The shrapnel 3 falls off from between the base 1 and the yoke 14 .

The base 1 is equipped with two output terminals, one end of the two output terminals protrudes from the base 1, and the other end of the armature 4 is equipped with a push piece 22, which is also made of insulating plastic. The sheet 22 and the second plate body are respectively located on the left and right sides of the partition 24. The push sheet 22 is equipped with a conductive sheet for communicating with the two output terminals. Two arc surfaces 26. After the push piece 22 is installed on the armature 4, the free end of the second elastic piece 17 blocks the push piece 22 to prevent the push piece 22 from falling off from the armature 4; when the armature 4 rotates relative to the yoke 14, the second elastic piece 17 The relative rolling between the second arc surface 26 and the push piece 22, compared with the relative sliding between the second elastic piece 17 and the push piece 22, reduces the wear between the second elastic piece 17 and the push piece 22, and prolongs the push piece 22. And reset the service life of shrapnel 3.

The push piece 22 is movably connected to the other end of the armature 4, and the push piece 22 is provided with a third arc surface 27 for abutting against the second board; the conductive piece is an elastic reed, and the two output terminals are A static contact is provided, and the static contact is riveted on the output terminal, and the elastic reed is provided with two movable contacts for abutting against the two static contacts respectively, and the movable contact is riveted on the elastic reed. When the armature 4 rotates relative to the yoke 14, the armature 4 can rotate together with the push piece 22, and when the push piece 22 rotates, it can move together with the elastic reed, and the movable contact and the static contact can be realized when the elastic reed moves. conduction between. In actual use, when the movable contact and the static contact are in contact with each other, the third arc surface 27 abuts against the second plate body, and then the push piece 22 continues to rotate, so that the elastic reed is bent and deformed. The elastic recovery force of the elastic reed itself increases the contact force between the movable contact and the static contact, ensuring that the movable contact and the static contact can be in stable contact; during the bending and deformation of the elastic reed, the push piece 22 Relative rolling occurs between the third arc surface 27 and the second plate body, compared with the relative sliding between the push piece 22 and the second plate body, the wear between the push piece 22 and the second plate body is reduced, and the push piece 22 is extended. The service life of sheet 22 and yoke iron 14.

In this embodiment, the relay with rectification function of the present invention also includes a cover 28 installed on the base 1, and the cooperation between the base 1 and the cover 28 is used to seal the various components of the relay, so that there are only two The base 1 is exposed from the input terminal and the two output terminals, so that foreign dust and other sundries are prevented from entering between the various components of the relay and affecting the normal use of the relay. Of course, according to actual needs, the output terminals of the relay can be in multiple groups, and each group has two output terminals.

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 relay with rectification function, including pedestal, are installed in the electromagnetic coil and reseting shrapnel of pedestal, rotation connects It is connected to the armature of pedestal, electromagnetic coil is for driving armature to rotate, and reseting shrapnel is for driving armature to set back；Further include whole Bridge is flowed, the output end of rectifier bridge connect conducting with electromagnetic coil, and the input terminal of rectifier bridge is used to that extraneous power supply to be connected；

The relay with rectification function further includes piezoresistor, and piezoresistor is parallel to rectifier bridge, varistor Output end after device, rectifier bridge parallel connection connect conducting with electromagnetic coil, the input terminal after piezoresistor, rectifier bridge parallel connection with it is outer The power supply on boundary is connected；

The relay with rectification function further includes internal circuit board, and internal circuit board is installed in pedestal, rectifier bridge, pressure-sensitive Resistor 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 relay according to claim 1 with rectification function, it is characterised in that：Second plate body is far from first One end of 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 section is 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 arc surface, The free end of first shrapnel is fastened in armature.

3. the relay according to claim 1 with rectification function, it is characterised in that：The pedestal is equipped with snap-gauge, the Two plate bodys are equipped with the second card slot, and snap-gauge protrudes into the second card slot.

4. the relay according to claim 1 with rectification function, it is characterised in that：The pedestal is equipped with partition board, the Between partition board and skeleton, one end of reseting shrapnel is located between partition board and the second plate body two plate bodys, and the one of reseting shrapnel End is equipped with retaining sheet, and retaining sheet is for abutting to partition board or/and the second plate body.

5. the relay according to claim 4 with rectification function, it is characterised in that：There are two defeated for the pedestal installing Go out terminal, the other end of armature is installed with push jack, and push jack, the second plate body are located at the both sides of partition board, and push jack, which is installed with, to be used for It is connected to the conductive sheet of two leading-out terminals, the free end of the second shrapnel is equipped with the second arc surface for abutting push jack.

6. the relay according to claim 5 with rectification function, it is characterised in that：The push jack is movably connected on rank The other end of iron, push jack are provided with the third arc surface for abutting the second plate body；Conductive sheet is elastic spring, two output ends Son is equipped with stationary contact, and elastic spring is equipped with two movable contacts for being respectively used to abut two stationary contacts.