CN214175882U

CN214175882U - Lever-type relay

Info

Publication number: CN214175882U
Application number: CN202120348099.XU
Authority: CN
Inventors: 任世刚
Original assignee: Sanyou Corp Ltd
Current assignee: Sanyou Corp Ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-09-10
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to the technical field of relays, in particular to a lever type relay, which comprises an insulator, an electromagnet arranged on the insulator, an armature unit movably arranged relative to the insulator, and an elastic piece used for driving the armature unit to reset; the circuit breaker further comprises a permanent magnet and a telescopic rod for driving the circuit breaker to be opened or closed, and the telescopic rod is arranged in a sliding mode relative to the insulator; the middle part of the armature unit is rotationally arranged relative to the insulator, and one end of the armature unit acts on the elastic piece; the permanent magnet is used for attracting the armature unit; the electromagnet acts on the other end of the armature unit to enable the armature to rotate and be separated from the permanent magnet, the armature unit is driven to reset by virtue of repulsion of the electromagnet to the armature unit and the elastic piece, the telescopic rod stretches out and slides, and the circuit breaker is triggered by virtue of the sliding telescopic rod; the telescopic rod is retracted and slides through the attraction of the permanent magnet to the armature unit; the structure design is simplified, and the manufacturing cost is reduced.

Description

Lever-type relay

Technical Field

The utility model relates to a relay technical field especially discloses a lever relay.

Background

The circuit breaker is one of the switch spare that commonly uses in the circuit, and the triggering mode of circuit breaker is diversified, also can realize the automation of circuit breaker with the help of the action of relay among the prior art and control, and the relay that is used for controlling the circuit breaker among the prior art drives the circuit breaker action with the help of the action spare of round trip movement often, but the structure of relay is complicated, and it is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a lever type relay, which realizes the extending and sliding of a telescopic rod by means of the repulsion of an electromagnet to an armature unit and the driving and resetting of an elastic piece to the armature unit, and realizes the triggering of a circuit breaker by means of the sliding telescopic rod; the telescopic rod is retracted and slides through the attraction of the permanent magnet to the armature unit; the structure design is simplified, and the manufacturing cost is reduced.

In order to achieve the above object, the present invention provides a lever-type relay, which includes an insulator, an electromagnet disposed on the insulator, an armature unit movably disposed relative to the insulator, and an elastic member for driving the armature unit to reset; the circuit breaker further comprises a permanent magnet and a telescopic rod for driving the circuit breaker to be opened or closed, and the telescopic rod is arranged in a sliding mode relative to the insulator; the middle part of the armature unit is rotationally arranged relative to the insulator or/and the electromagnet, and one end of the armature unit acts on the elastic piece; the permanent magnet is used for attracting the armature unit to be close to the permanent magnet, the telescopic rod retracts and slides relative to the insulator, and the moving armature unit drives the elastic piece to elastically deform; the magnetic force of the electromagnet acts on the armature unit to enable the armature unit to move away from the permanent magnet, the elastic piece is used for driving the armature unit to reset, and the armature unit is used for driving the telescopic rod to extend and slide relative to the insulator.

The electromagnet comprises an iron core piece and a coil, wherein the iron core piece comprises a base part, an iron core part and a supporting part, the iron core part and the supporting part are respectively formed by bending two ends, far away from each other, of the base part, the iron core part and the supporting part are arranged in parallel, the iron core part and the base part are vertically arranged, the coil is sleeved on the outer side of the iron core part, the armature unit is rotatably arranged at one end, far away from the base part, of the supporting part, one end, far away from the base part, of the iron core part is used for repelling the armature unit, and the permanent magnet is located between the iron core part and the supporting part.

The insulator comprises a bottom plate, the bottom plate is provided with a first blind groove and two first bulges protruding into the first blind groove, the base part is located in the first blind groove, the base part is provided with two first clamping grooves, the two first clamping grooves are formed by concave arrangement of two sides of the base part, which are far away from each other, the base part is located between the two first bulges, the two first bulges extend into the two first clamping grooves respectively, and the iron core part and the supporting part extend out of the bottom plate in a protruding mode.

The insulator also comprises a framework, the framework is provided with a substrate, a clamping plate spaced from the substrate and an upright post for connecting the substrate and the clamping plate, and the coil is sleeved outside the upright post and positioned between the substrate and the clamping plate; the skeleton has the perforation that sets up in the base plate and communicate the blind groove of second, with the blind groove intercommunication of second and run through the stand in the base plate, and the base plate holds and locates first blind inslot, and the supporting part was kept away from to the basal portion one end holds and establishes in the blind groove of second, and iron core portion holds and establishes in the perforation, and the cardboard is stretched out suddenly to the one end that iron core portion kept away from the basal portion and is used for attracting armature unit.

One end of the permanent magnet is pressed on the base, the other end of the permanent magnet is used for supporting the armature unit in a propping mode, one end of the permanent magnet is located in the first blind groove, and the base is provided with a notch groove for accommodating the permanent magnet.

The armature unit comprises a support part and an elastic part, wherein the support part is detachably connected with the armature unit, the support part is provided with a first blind groove, the first blind groove is arranged in the first blind groove, the first blind groove is used for accommodating the permanent magnet, the elastic part is arranged in the first blind groove, and the first blind groove is used for accommodating the permanent magnet; the end of the reinforcing piece far away from the first hook body is provided with two limiting arms, and the armature unit is positioned between the two limiting arms.

Wherein, armature unit has armature spare and sets up in the fitting piece of armature spare, the relative supporting part in middle part of armature spare rotates the setting, iron core portion is used for attracting armature spare, the fitting piece has two bayonet grooves, two bayonet grooves are established from the both sides that the fitting piece kept away from each other respectively and are formed by concave, two spacing arms stretch into two bayonet grooves respectively, the fitting piece has the second coupler body, the one end that first coupler body was kept away from to the elastic component is hung and is held on the second coupler body, the second coupler body has the second notch that is used for holding the other end of establishing the elastic component.

The matching piece is provided with an elastic arm, the free end of the elastic arm is abutted against the armature piece, the elastic arm and the elastic piece are respectively positioned on two sides of the supporting part, a yielding gap is formed between one end of the elastic arm close to the elastic piece and the armature piece, and one end of the elastic arm close to the elastic piece is used for stopping and abutting against the telescopic rod.

The utility model has the advantages that: the electromagnet acts on the other end of the armature unit to enable the armature to rotate and be separated from the permanent magnet, the armature unit is driven to reset by virtue of repulsion of the electromagnet to the armature unit and the elastic piece, the telescopic rod stretches out and slides, and the circuit breaker is triggered by virtue of the sliding telescopic rod; the telescopic rod is retracted and slides through the attraction of the permanent magnet to the armature unit; the structure design is simplified, and the manufacturing cost is reduced.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the exploded structure of the present invention;

fig. 3 is a schematic diagram of the explosion structure of the present invention;

fig. 4 is a schematic perspective view of the iron core member and the mating member according to the present invention.

The reference numerals include:

1-insulator 2-electromagnet 3-armature unit

4-elastic piece 5-permanent magnet 6-telescopic rod

7-core piece 8-coil 9-base

11-core part 12-support part 13-bottom plate

14-first protrusion 15-first clamping groove 16-framework

17-base plate 18-clamping plate 19-upright post

21-notch groove 22-reinforcement 23-first hook

24-limiting plate 25-limiting arm 26-armature piece

27-mating member 28-bayonet groove 29-second hook

31-spring arm 32-tab 33-first reference plane

34-second reference plane 35-insulating shell 36-disc body

37-rod body 38-slide hole 39-second convex column

41-reinforcing rib 42-power terminal.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.

Referring to fig. 1 to 4, a lever relay according to the present invention includes an insulator 1, an electromagnet 2 mounted on the insulator 1, an armature unit 3 movably disposed relative to the insulator 1, and an elastic member 4 for driving the armature unit 3 to reset.

The relay further comprises a permanent magnet 5 and an expansion link 6 for driving the breaker to be opened or closed, the expansion link 6 is in a cylindrical rod shape, and the expansion link 6 is arranged in a sliding mode relative to the insulator 1; the central part of the armature unit 3 is arranged rotatably relative to the insulator 1 and/or the electromagnet 2, one end of the armature unit 3 acting on the spring 4 and the electromagnet 2 serving to attract the other end of the armature unit 3.

The permanent magnet 5 is used for attracting the armature unit 3 to enable the armature unit 3 to move close to the permanent magnet 5, the moving armature unit 3 drives the elastic piece 4 to elastically deform, and the telescopic rod 6 retracts and slides relative to the insulator 1. When the electromagnet 2 is electrified, the electromagnet 2 generates a magnetic force, the magnetic force of the electromagnet 2 repels the armature unit 3 and enables the armature unit 3 to move away from the permanent magnet 5 by means of the elastic restoring force of the elastic piece 4, and the moving armature unit 3 pushes the telescopic rod 5 to stretch and slide relative to the insulator 1.

The armature unit 3 is repelled by the electromagnet 2 and the armature unit 3 is driven to reset by the elastic piece 4, the telescopic rod 6 is extended and slid, the circuit breaker is triggered by the sliding telescopic rod 6, the armature unit 3 is attracted by the permanent magnet 5, the telescopic rod 6 is retracted and slid, the structural design of the relay is simplified, the occupied space of the relay is reduced, the manufacturing cost is reduced, and the miniaturization development trend is met.

The electromagnet 2 includes a core member 7 and a coil 8, the core member 7 is of an integral structure, the core member 7 is made of a magnetic conductive material, the core member 7 is substantially U-shaped, the core member 7 includes a base portion 9, a core portion 11 and a support portion 12, the core portion 11 and the support portion 12 are respectively formed by bending two ends away from the base portion 9, the core portion 11 and the support portion 12 are located on the same side of the base portion 9, the core portion 11 and the support portion 12 are arranged in parallel, and the core portion 11 and the base portion 9 are arranged vertically.

The coil 8 is sleeved on the outer side of the iron core part 11 in a surrounding mode, the armature unit 3 is rotatably arranged at one end, away from the base part 9, of the supporting part 12, one end, away from the base part 9, of the iron core part 11 is used for repelling the armature unit 3, and the permanent magnet 5 is located between the iron core part 11 and the supporting part 12. Through the structural design of the core piece 7, the fixed iron core and the yoke of the electromagnet 2 in the prior art are integrated into a component, so that the structural design of the electromagnet 2 is simplified, and the manufacturing efficiency is improved.

The insulator 1 comprises a bottom plate 13, the bottom plate 13 is provided with a first blind groove and two first protrusions 14 protruding into the first blind groove, the base part 9 is located in the first blind groove, the base part 9 is provided with two first clamping grooves 15, the two first clamping grooves 15 are respectively formed by recessing the left side and the right side of the base part 9 away from each other, preferably, the first clamping grooves 15 penetrate through the base part 9 along the thickness direction of the base part 9, the base part 9 is located between the two first protrusions 14, the two first protrusions 14 respectively extend into the two first clamping grooves 15, and the iron core part 11 and the supporting part 12 both protrude out of the bottom plate 13.

The base part 9 is accommodated by the first blind groove, so that the base part 9 is limited, and the iron core piece 7 is quickly and accurately installed at the accurate position on the bottom plate 13. When the bottom plate 13 and the core member 7 are assembled together, the first protrusion 14 is received in the first engaging groove 15, and the first protrusion 14 is stopped by the inner groove side surface of the first engaging groove 15, so that the base portion 9 is prevented from moving relative to the bottom plate 13 and changing its position, and the core member 7 is secured to the bottom plate 13.

The insulator 1 further comprises a framework 16, the framework 16 is provided with a substrate 17, a clamping plate 18 spaced from the substrate 17, and a column 19 for connecting the substrate 17 and the clamping plate 18, the substrate 17 and the clamping plate 18 are spaced from each other and arranged in parallel, and the coil 8 is sleeved on the outer side of the column 19 and located between the substrate 17 and the clamping plate 18. The limiting coil 8 is blocked by the substrate 17 and the clamping plate 18, so that the coil 8 is prevented from moving back and forth along the framework 16, and the coil 8 is ensured to be accurately limited on the framework 16.

The framework 16 is provided with a second blind groove which is arranged on the base plate 17 and communicated with the first blind groove, and a through hole which is communicated with the second blind groove and penetrates through the upright post 19, the base plate 17 is provided with two second protrusions which protrude into the second blind groove, the base part 9 is positioned between the two second protrusions, the two sides of the base part 9 are both provided with second clamping grooves, the two second protrusions respectively extend into the second clamping grooves on the two sides of the base part 9, and the side surfaces of the inner grooves of the second clamping grooves are used for blocking and abutting against the second protrusions.

The base plate 17 is accommodated in the first blind groove, one end of the base part 9 far away from the supporting part 12 is accommodated in the second blind groove by means of the first blind groove limiting base plate 17, the iron core part 11 is accommodated in the through hole, and one end of the iron core part 11 far away from the base part 9 protrudes out of the clamping plate 18 and is used for attracting the armature unit 3.

One end of the permanent magnet 5 is pressed on the base part 9, the other end of the permanent magnet 5 is used for supporting the armature unit 3 in a propping mode, one end of the permanent magnet 5 is located in the first blind groove, and the permanent magnet 5 is limited by means of the side wall of the first blind groove. The base portion 9 has a notch groove 21 for accommodating the permanent magnet 5, and the notch groove 21 assists the position-restricting base portion 9 to ensure that the permanent magnet 5 is stably restricted at a desired position. Preferably, the outer side of the permanent magnet 5 is sleeved with a silica gel sleeve, and by means of the soft elastic characteristic of the silica gel sleeve, the stable buffering of the armature unit 3 is realized, and the direct collision of the armature unit 3 with the permanent magnet 5 is avoided.

The permanent magnet support structure further comprises a reinforcing member 22 detachably connected with the support portion 12, for example, the reinforcing member 22 is made of a metal material, the reinforcing member 22 can be made of stainless steel, the reinforcing member 22 has a first hook 23 located in the first blind groove and a limiting plate 24 for stopping and abutting against the permanent magnet 5, and the permanent magnet 5 is prevented from being skewed by the stopping effect of the limiting plate 24 on the permanent magnet 5.

Preferably, the elastic member 4 is a spring, one end of the elastic member 4 away from the armature unit 3 is hung on the first hook body 23, the first hook body 23 has a first notch for accommodating one end of the elastic member 4, and the first hook body 23 is limited by the inner side surface of the first notch, so that the elastic member 4 is prevented from moving relative to the first hook body 23.

The end of the reinforcement 22 remote from the first hook 23 has two stop arms 25, between which stop arms 25 the armature unit 3 is located, by means of which stop arms 25 the armature unit 3 is stopped, ensuring that the armature unit 3 is accurately defined in the desired position.

The armature unit 3 is provided with an armature piece 26 and a matching piece 27 arranged on the armature piece 26, the middle part of the armature piece 26 is rotatably arranged relative to the supporting part 12, preferably, the top end of the supporting part 12 is provided with a semi-cylinder, one end of the armature piece 26 is provided with a semi-cylinder notch groove, the semi-cylinder is accommodated in the semi-cylinder notch groove in a rolling manner, and the outer side surface of the semi-cylinder is abutted with the inner groove side surface of the semi-cylinder notch groove, so that the stability and the limitation of the two are realized. Meanwhile, the friction force between the two rotating bodies is reduced, and the convenience of rotation of the two rotating bodies is improved.

The iron core part 11 is used for attracting the armature piece 26, the fitting part 27 is provided with two bayonet grooves 28, the two bayonet grooves 28 are respectively formed by recessing two sides of the fitting part 27 far away from each other, the bayonet grooves 28 penetrate through the fitting part 27 along the thickness direction of the fitting part 27, and the two limiting arms 25 respectively extend into the two bayonet grooves 28. The inner groove side of the bayonet groove 28 stops the limit arm 25, and the fitting member 27 and the reinforcing member 22 are accurately assembled together by the engagement of the bayonet groove 28 and the limit arm 25.

The mating member 27 has a second hook 29, and one end of the elastic member 4 remote from the first hook 23 is hooked on the second hook 29, and the second hook 29 has a second recess for receiving the other end of the elastic member 4. The second hook 29 is stopped and limited by the inner side surface of the second notch, so that the elastic element 4 is prevented from moving relative to the second hook 29 and being used badly.

The engaging member 27 has a resilient arm 31, a free end of the resilient arm 31 abuts against the armature member 26, the resilient arm 31 and the resilient member 4 are respectively located at the left and right sides of the supporting portion 12, the resilient arm 31 is substantially flat, an abdicating gap is formed between one end of the resilient arm 31 close to the resilient member 4 and the armature member 26, and one end of the resilient arm 31 close to the resilient member 4 is used for stopping and abutting against the telescopic rod 6.

When the electromagnet 2 drives the armature piece 26 to enable the armature unit 3 to rotate relative to the supporting portion 12, the elastic arm 31 is used for abutting against the telescopic rod 6, on one hand, the elastic characteristic of the elastic arm 31 is used for buffering collision impact force between the armature unit and the telescopic rod 6, noise and damage probability are reduced, on the other hand, the telescopic rod 6 is prevented from directly impacting the armature piece 26, the telescopic rod 6 is enabled to impact on the matching piece 27, and the service life of the armature piece 26 is prolonged.

The fitting member 27 has two tabs 32, the two tabs 32 are spaced from each other and are parallel to each other, the supporting portion 12 is located between the two tabs 32, and the supporting portion 12 is clamped and limited by the two tabs 32, so that the armature member 26 is prevented from moving relative to the fitting member 27 and being badly used. The ear 32 has a first reference plane 33 and a second reference plane 34 intersecting the first reference plane 33, and preferably, the included angle between the first reference plane 33 and the second reference plane 34 is an obtuse angle.

During the actual use of the relay, after the electromagnet 2 is electrified, the iron core part 11 repels the armature unit 3 to rotate in the forward direction, so that the second reference plane 34 is abutted against the reinforcing piece 22; by means of the mutual interference between the second reference plane 34 and the reinforcing member 22, the position of the matching member 27 is limited, and further the position of the armature unit 3 is limited, so that the armature unit 3 is stably kept at a required position, and the situation that the position of the armature unit 3 is easily changed and the use is poor is avoided.

When the electromagnet 2 loses power, the electromagnet 2 loses magnetic force, the electromagnet 2 no longer attracts the armature member 26, the permanent magnet 5 attracts the armature unit 3 under the magnetic force to drive the engaging piece 27 to overcome the frictional resistance between the two reference plane corners and the reinforcing member 22, so that the engaging piece 27 rotates relative to the reinforcing member 22, and the rotating engaging piece 27 drives the armature member 26 to enable the whole armature unit 3 to rotate so that the first reference plane 33 abuts against the reinforcing member 22. By means of mutual interference between the first reference plane 33 and the reinforcing part 22, the position of the matching piece 27 is limited, and further the position of the armature unit 3 is limited, so that the armature unit 3 is stably kept at a required position, and the situation that the position of the armature unit 3 is easily changed and is not used well is avoided.

The insulator 1 further comprises an insulating shell 35 connected with the bottom plate 13 in a buckling mode, the insulating shell 35 is approximately in a hollow cuboid shape, the bottom plate 13 is provided with a plurality of clamping protrusions, the clamping protrusions are arranged around the central axis of the bottom plate 13, a plurality of clamping holes used for containing the clamping protrusions are formed in the insulating shell 35 respectively, and the insulating shell 35 is provided with a containing cavity used for containing the electromagnet 2, the armature unit 3 and the elastic piece 4. With the help of insulating shell 35 and bottom plate 13's buckle connection, promote dismouting efficiency between them on the one hand, on the other hand with the help of insulating shell 35 with skeleton 16 firm pressure hold spacing on bottom plate 13, need not skeleton 16 and bottom plate 13 and set up installation connection structure, simplify the configuration design, reduce manufacturing cost.

The telescopic rod 6 is provided with a rod body 36 and a rod body 37 connected with the rod body 36, the rod body 36 is approximately circular, one end of the rod body 36 far away from the rod body 37 is provided with a hemispherical convex surface, the hemispherical convex surface is used for abutting against the elastic arm 31 of the matching piece 27 of the armature unit 3, and by means of the abutting of the hemispherical convex surface and the elastic arm 31, when the armature unit 3 drives the telescopic rod 6 to move, the friction force between the two is reduced.

The insulating shell 35 is provided with a sliding hole 38, the rod body 37 is slidably accommodated in the sliding hole 38, the sliding direction of the telescopic rod 6 is guided by the sliding hole 38, the disk body 36 is located in the accommodating cavity and used for abutting against the side surface of the inner cavity of the accommodating cavity, the outer diameter of the disk body 36 is larger than that of the rod body 37, and the side surface of the inner cavity of the accommodating cavity of the insulating shell 35 stops the disk body 36 so as to prevent the telescopic rod 6 from being separated from the insulating shell 35. The free end of the rod body 37 is used for abutting against the circuit breaker, preferably, the end face of the free end of the rod body 37 is a spherical convex surface, the spherical convex surface is used for abutting against the circuit breaker, and friction force between the spherical convex surface and the circuit breaker is reduced by means of contact of the spherical convex surface and the circuit breaker.

The insulating shell 35 further comprises a first convex column arranged in the insulating shell 35, a second convex column 39 arranged outside the insulating shell 35, and a reinforcing rib 41 connecting the second convex column 39 and the outer surface of the insulating shell 35, a sliding hole 38 penetrates through the first convex column and the second convex column 39, and the end face of the free end of the first convex column is used for stopping and abutting against the disc body 36. By means of the matching of the convex columns and the reinforcing ribs 41, the strength of the side wall of the insulating shell 35 is increased, the telescopic rod 6 is prevented from impacting and damaging the side wall of the insulating shell 35 in the process that the telescopic rod 6 slides relative to the insulating shell 35, and the service life of the insulating shell 35 is prolonged.

The electromagnet 2 further comprises two power terminals 42, the power terminals 42 have non-circular portions, the substrate 17 has non-circular holes for accommodating the non-circular portions, the side surfaces of inner holes of the non-circular holes are used for blocking and abutting against the outer side surfaces of the non-circular portions, two ends of the coil 8 are used for connecting one end of each power terminal 42, and the other end of each power terminal 42 is used for connecting an external power supply. The fitting of the non-circular portion and the non-circular hole prevents the power supply terminal 42 from rotating relative to the frame 16 and being used badly.

In this embodiment, the power terminal 42 has a piercing portion having two parallel blades, a wire accommodating gap is formed between the two blades, the coil 8 is squeezed into the space between the two blades through the wire accommodating gap, and the blades pierce the insulating outer layer of the coil 8 and conduct the conductive inner core of the coil 8. By means of the puncture part, the coil 8 is not required to be welded with the power terminal 42, and the conduction efficiency of the power terminal 42 and the coil 8 is improved.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. A lever type relay comprises an insulator, an electromagnet arranged on the insulator, an armature unit movably arranged relative to the insulator, and an elastic piece used for driving the armature unit to reset; the method is characterized in that: the circuit breaker further comprises a permanent magnet and a telescopic rod for driving the circuit breaker to be opened or closed, and the telescopic rod is arranged in a sliding mode relative to the insulator; the middle part of the armature unit is rotationally arranged relative to the insulator or/and the electromagnet, and one end of the armature unit acts on the elastic piece; the permanent magnet is used for attracting the armature unit to be close to the permanent magnet, the telescopic rod retracts and slides relative to the insulator, and the moving armature unit drives the elastic piece to elastically deform; the magnetic force of the electromagnet acts on the armature unit to enable the armature unit to move away from the permanent magnet, the elastic piece is used for driving the armature unit to reset, and the armature unit is used for driving the telescopic rod to extend and slide relative to the insulator.

2. A lever type relay as claimed in claim 1, wherein: the electromagnet comprises an iron core piece and a coil, wherein the iron core piece comprises a base part, an iron core part and a supporting part, the iron core part and the supporting part are respectively formed by bending two ends of the base part away from each other, the iron core part and the supporting part are arranged in parallel, the iron core part and the base part are vertically arranged, the coil is sleeved on the outer side of the iron core part, the armature unit is rotatably arranged at one end of the supporting part away from the base part, one end of the iron core part away from the base part is used for attracting the armature unit, and the permanent magnet is positioned between the iron core part and the supporting part.

3. A lever type relay according to claim 2, wherein: the insulator comprises a bottom plate, wherein the bottom plate is provided with a first blind groove and two first bulges which protrude into the first blind groove, the base part is positioned in the first blind groove, the base part is provided with two first clamping grooves, the two first clamping grooves are respectively formed by concave arrangement of two sides of the base part, which are far away from each other, the base part is positioned between the two first bulges, the two first bulges respectively extend into the two first clamping grooves, and the iron core part and the supporting part all extend out of the bottom plate.

4. A lever type relay according to claim 3, wherein: the insulator also comprises a framework, the framework is provided with a substrate, a clamping plate spaced from the substrate and an upright post for connecting the substrate and the clamping plate, and the coil is sleeved outside the upright post and positioned between the substrate and the clamping plate; the skeleton has the perforation that sets up in the base plate and communicate the blind groove of second, with the blind groove intercommunication of second and run through the stand in the base plate, and the base plate holds and locates first blind inslot, and the supporting part was kept away from to the basal portion one end holds and establishes in the blind groove of second, and iron core portion holds and establishes in the perforation, and the cardboard is stretched out suddenly and be used for repelling armature unit to the one end that iron core portion kept away from the basal portion.

5. A lever type relay according to claim 4, wherein: one end of the permanent magnet is pressed on the base, the other end of the permanent magnet is used for supporting the armature unit in a propping mode, one end of the permanent magnet is located in the first blind groove, and the base is provided with a notch groove for accommodating the permanent magnet.

6. A lever type relay according to claim 3, wherein: the armature unit is arranged in the first blind groove, and the armature unit is arranged in the first blind groove; the end of the reinforcing piece far away from the first hook body is provided with two limiting arms, and the armature unit is positioned between the two limiting arms.

7. A lever type relay according to claim 6, wherein: the armature unit has armature spare and sets up in the fitting piece of armature spare, the relative supporting part in middle part of armature spare rotates the setting, iron core portion is used for attracting armature spare, the fitting piece has two bayonet grooves, two bayonet grooves are established from the both sides that the fitting piece kept away from each other respectively and are formed by concave, two spacing arms stretch into two bayonet grooves respectively, the fitting piece has the second coupler body, the one end that first coupler body was kept away from to the elastic component is hung and is held on the second coupler body, the second coupler body has the second notch that is used for holding the other end of establishing the elastic component.

8. A lever type relay according to claim 7, wherein: the matching piece is provided with an elastic arm, the free end of the elastic arm is abutted against the armature piece, the elastic arm and the elastic piece are respectively positioned on two sides of the supporting part, an abdicating gap is formed between one end of the elastic arm close to the elastic piece and the armature piece, and one end of the elastic arm close to the elastic piece is used for blocking and abutting against the telescopic rod.