CN209298034U - A kind of clapper type relay suitable for heavy load - Google Patents

Abstract

The utility model discloses a kind of clapper type relays suitable for heavy load, including shell, magnetic circuit system and contact system, magnetic circuit system includes armature, yoke, iron core and the bobbin for being wound with enameled wire, iron core is arranged in bobbin, yoke is in L-shaped, and yoke is connected with iron core one end on one side, yoke another side cooperates in bobbin side；Contact system includes movable contact spring, static contact spring piece, weld tabs, and movable contact spring is in L-shaped, and movable contact spring is connected with yoke another side on one side, and movable contact spring another side is connected with armature；The conductivity of weld tabs is greater than the conductivity of yoke, and the thickness of weld tabs is greater than the thickness of movable contact spring, which is electrically connected on one side with movable contact spring, and the weld tabs is equipped with weld tabs leading foot.The setting of the weld tabs and weld tabs leading foot makes the utility model solve the problems, such as that relay is low using conductivity present in yoke leading foot, fever is serious.

Description

A kind of clapper type relay suitable for heavy load

Technical field

The utility model relates to a kind of clapper type relays, more particularly to a kind of clapper-type relay suitable for heavy load Device.

Background technique

Traditional clapper type relay generally comprises magnetic circuit system, contact system, and magnetic circuit system is by armature, yoke, iron core It is formed with the bobbin for being wound with enameled wire, contact system is by being equipped with the movable contact spring of movable contact, dynamic spring leading foot, being equipped with stationary contact The static contact spring piece composition of point, quiet spring leading foot.The movable contact spring of this relay is generally all than relatively thin, when applied to large current load When, in order to increase the current carrying area of movable contact spring, avoid movable contact spring current carrying density high, usually using movable contact spring part as leading foot When, pin portions need lamination, increased in this way in production the difficulty of mold, especially movable contact spring generally all can bending, This just further increases the difficulty of pin lamination, so that being difficult to realize in technique.In order to solve this problem, the prior art occurs It is a kind of that the leading foot of movable contact spring is located at the clapper type relay on yoke, the advantage of doing so is that make it is relatively simple for structure, The first-class realization of technique, while also simplifying the structure design of movable contact spring.However, since movable contact spring is Copper alloy material, the master of yoke Wanting material is pure iron, the conductivity of iron far away from copper conductivity, therefore the drawbacks of that there are conductivities is low, Wen Shenggao, especially In the higher situation of loop current, temperature rise is excessively high, will cause electromagnetic relay reduced performance and the excessively high institute of circuit board temperature rise Bring adverse effect.

Utility model content

The utility model provides a kind of clapper type relay suitable for heavy load, and solving existing clapper type relay will The leading foot of movable contact spring is located at drawback existing on yoke.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of clapper-type suitable for heavy load after Electric appliance, including shell, magnetic circuit system and contact system, magnetic circuit system include armature, yoke, iron core and the line for being wound with enameled wire Coil, iron core are arranged in bobbin, and yoke is in L-shaped, and yoke is connected with iron core one end on one side, the cooperation of yoke another side In bobbin side；Contact system includes movable contact spring, static contact spring piece, and static contact spring piece is set to bobbin, and is equipped with stationary contact and quiet spring Leading foot, movable contact spring is in L-shaped, and movable contact spring is connected with yoke another side on one side, and movable contact spring another side is connected with armature, And armature is made to be against the knife-edge part of yoke and corresponding with the iron core other end；Movable contact spring another side is equipped with movable contact, with static contact spring piece Stationary contact it is corresponding；The contact system further includes weld tabs, and the conductivity of the weld tabs is greater than the conductivity of yoke, the thickness of the weld tabs Degree is greater than the thickness of movable contact spring, which is electrically connected on one side with movable contact spring, and the weld tabs is equipped with weld tabs leading foot.

Further, the weld tabs and the yoke another side, which are combined with, is parallel to bobbin axis for limiting weld tabs edge Direction movement position limiting structure.

Further, the weld tabs is u-shaped, and the right and left of the weld tabs is respectively fitting into the left and right two of yoke another side Side, and be combined with the position limiting structure with the yoke another side respectively, the right and left of the weld tabs respectively with the movable contact spring It is electrically connected on one side；The bottom edge of the weld tabs cooperates in the side where another edge tail of yoke, and is equipped with the weld tabs and draws Foot.

Further, the position limiting structure include the weld tabs the respectively arranged protrusion of the right and left and the yoke it is another The respectively arranged card slot in the left and right ends on one side, alternatively, the position limiting structure includes the left and right ends point of the yoke another side The respectively arranged card slot of the right and left of the protrusion and the weld tabs that are not arranged, each protrusion engage with corresponding card slot respectively.

Further, the right and left of the weld tabs rivets fixation with the movable contact spring respectively on one side.

It further, further include arc blocking structure, arc blocking structure configuration is in the touching being made of the stationary contact and movable contact Between point group and the shell.

Further, the arc blocking structure includes baffle arc piece, and position of the bobbin on the outside of movable contact spring another side is set It is equipped with the limit film limited the movement travel of movable contact spring another side, the baffle arc piece is located in limit film.

Further, the baffle arc piece left part is different with the arc blocking area of right part, and the corresponding touching in position that arc blocking area is big More one side of electric arc splash that point group generates.

Further, the baffle arc piece and limit film are integrally formed, and the two constitutes L-shaped.

Further, the weld tabs is fine copper or Copper alloy material；The weld tabs and its weld tabs leading foot are integrally formed.

Compared to the prior art, the utility model has the following beneficial effects:

1, since the contact system further includes weld tabs, the conductivity of the weld tabs is greater than the conductivity of yoke, the weld tabs Thickness is greater than the thickness of movable contact spring, which is electrically connected on one side with movable contact spring, and the weld tabs is equipped with weld tabs leading foot, so that this Utility model can use leading foot of the weld tabs leading foot as movable contact spring, so that the utility model be made to be applicable not only to greatly The working environment of current loading also solves relay and uses conductivity present in yoke leading foot is low, fever is serious to ask Topic.

2, bobbin axis is parallel to for limiting weld tabs edge since the weld tabs and the yoke another side are combined with The position limiting structure of direction movement, it is thus possible to avoid the tensile property of the weld tabs described in assembling process insufficient or the extraction of its weld tabs Foot is jacked up and movable contact spring is caused to deform and influence properties of product.

3, the position limiting structure preferably includes the protrusion and card slot, has the characteristics that structure is simple, easy to make.

4, the setting of the arc blocking structure, can prevent electric arc splash from spraying to shell, to avoid shell and contact sets Close position is by electric arc splash scorification.This is because after relay contact gap increases, electric arc is tight in heavy load Reheating erosion, the outside splash of electric arc splash easily cause contact peripheral plastic part by scorification.

5, the arc blocking structure preferably includes baffle arc piece, and the baffle arc piece is located in the limit film, is able to solve arc blocking The problem of independently installed existing installation of piece is inconvenient, process increases, and it is fixed that the installation being adapted to baffle arc piece is separately set from bobbin Bit architecture can avoid coil holder structure and complicate.

6, the arc blocking area of the baffle arc piece left part and right part is different, and arc blocking area big position correspond to contact sets and generates The more one side of electric arc splash, enable the utility model while guaranteeing efficient arc blocking, as far as possible by baffle arc piece Do it is small, to save material cost.

The utility model is described in further detail with reference to the accompanying drawings and embodiments；But one kind of the utility model is suitable Clapper type relay for heavy load is not limited to the embodiment.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is that the utility model turns the structural schematic diagram after an angle；

Fig. 3 is the cooperation schematic diagram one of the movable contact spring of the utility model, weld tabs, yoke；

Fig. 4 is the cooperation schematic diagram two of the movable contact spring of the utility model, weld tabs, yoke；

Fig. 5 is the weld tabs of the utility model and the cooperation schematic diagram of yoke；

Fig. 6 is the limit film of the utility model and the structural schematic diagram of baffle arc piece.

Specific embodiment

Embodiment, referring to Figure 1 shown in-Fig. 6, a kind of clapper type relay suitable for heavy load of the utility model, The relay is specially flip-over type, but not limited to this.The relay includes shell (not embodying in figure), magnetic circuit system and contact System, magnetic circuit system include armature 4, yoke 3, iron core (not embodying in figure) and the bobbin 1 for being wound with enameled wire 2, and iron core is worn In bobbin 1, yoke 3 is in L-shaped, and yoke one side 31 is connected with iron core one end, and yoke another side 32 cooperates online 1 side of coil, coiling edge of window of the specific cooperation in bobbin 1.Contact system includes movable contact spring 5, static contact spring piece 7, and static contact spring piece 7 is set It is placed in bobbin 1, and is equipped with stationary contact 71 and quiet spring leading foot 72, movable contact spring 5 is in L-shaped, and movable contact spring on one side 51 and yoke Another side 32 be connected (specifically using riveting method, but not limited to this), movable contact spring another side 52 is connected with armature 4, and Armature 4 is set to be against the knife-edge part of yoke 3 and corresponding with the iron core other end；Movable contact spring another side 52 is equipped with movable contact, with quiet spring The stationary contact of piece 7 is corresponding.The contact system further includes weld tabs 8, and the conductivity of the weld tabs 8 is greater than the conductivity of yoke 3, the weldering The thickness of piece 8 is greater than the thickness of movable contact spring 5, and the weld tabs 8 and movable contact spring 51 are electrically connected on one side, and the weld tabs 8 draws equipped with weld tabs Foot 81 out, the weld tabs leading foot 81 are pierced by with quiet spring leading foot 72 from the bottom surface of bobbin 1, and parallel with the axis of bobbin 1. The weld tabs 8 is fine copper or Copper alloy material, and the weld tabs 8 is integrally formed with its weld tabs leading foot 81.

In the present embodiment, the weld tabs 8 and the yoke another side 32 are combined with for limiting weld tabs 8 along being parallel to coil The position limiting structure of the direction movement of 1 axis of frame.

In the present embodiment, the weld tabs 8 is u-shaped, and the bottom edge 83 of the weld tabs 8 cooperates in 32 end institute of yoke another side Side, and be equipped with the weld tabs leading foot 81.Movable contact spring another side 52 is equipped with bending structure, leans on movable contact spring another side 52 The position on nearly movable contact spring one side 51 is located at 8 outside of weld tabs, and rest part is then located at 8 inside of weld tabs, in this way, can satisfy movable contact spring The demand of counter-force.51 also parts are divided into the two thin side 511 in left and right to the movable contact spring on one side, can increase the flexibility of movable contact spring, Suction is matched with counter-force to guarantee to inhale performance.The right and left 82 of the weld tabs 8 is respectively fitting into a left side for yoke another side 32 Right two sides, and 51 being electrically connected on one side with the movable contact spring respectively, specifically, the right and left 82 of the weld tabs 8 respectively with it is described Movable contact spring 51 is fixed and realizes electric connection using riveting methods on one side, but the connection type of weld tabs 8 and movable contact spring 5 not office It is limited to riveting method, it can also be using welding or other fixed forms.The right and left 82 of the weld tabs 8 and the movable contact spring one Two riveting points on side 51 and described movable contact spring one side 51 are not parallel with two riveting points of yoke another side 32, to prevent four rivetings Contact separation interferes each other after closely causing very much riveting bud to be expanded.

In the present embodiment, the right and left 82 of the weld tabs 8 is combined with the limit with the yoke another side 32 respectively Structure, the position limiting structure specifically include the respectively arranged protrusion 821 in 82 relative inner face of the right and left and the institute of the weld tabs 8 The respectively arranged card slot 321 in left and right ends side of yoke another side 32 is stated, each protrusion 821 is blocked with corresponding card slot 321 respectively It closes.The specific structure of the position limiting structure is not limited to this, and in other embodiments, the position limiting structure includes that the yoke is another The respectively arranged card slot of the right and left 82 of the respectively arranged protrusion in 32 left and right ends and the weld tabs 8 on one side.The weld tabs 8 Can satisfy the demand of Automated assembly with the engagement site of yoke 3, when assembly, weld tabs 8 and movable contact spring 5 rivet after using automatic Change the engaging process that assembly equipment completes weld tabs 8 and yoke 3, finally completes the staking process of movable contact spring 5 Yu yoke 3, such shape Integral conductive component.

In the present embodiment, the utility model further includes arc blocking structure, arc blocking structure configuration by the stationary contact 71 with Between the contact sets that movable contact 6 is constituted and the shell, electric arc splash for preventing to generate in the contact sets course of work (or Referred to as contact splash) spray to shell.The arc blocking structure is made of baffle arc piece 91, and is stainless steel material, but be not limited to This.The bobbin 1 is provided with the movement travel to movable contact spring another side 52 at the position in 52 outside of movable contact spring another side and carries out The limit film 9 of limitation, the baffle arc piece 91 are located in the limit film 9, and the two is integrally formed, and constitutes L-shaped structure.Cause This, it is also assumed that side of the baffle arc piece 91 as where limit film 9 close to one end towards contact sets of contact sets is bent. In this way, assembly process can be caused to increase, need the setting installation on bobbin 1 fixed in order to avoid baffle arc piece 91 needs independent fixation The inconvenience of bit architecture.The specific side of the limit film 9 is inserted into the space of 1 lower part of bobbin, and limitation movable contact spring another side 52 is played The distance moved down.The limit film 9 is respectively arranged on the left side and the right side clamping hangnail 92, and limit film 9 is made to be clamped in bobbin 1 In lower space, thus to 9 effective position of limit film.

In the present embodiment, 91 left part of baffle arc piece is different with the arc blocking area of right part, and the position pair that arc blocking area is big The more one side of electric arc splash for answering contact sets to generate.Experiment show contact sets generate electric arc splash be more to Direction splash where the right part of baffle arc piece 91, therefore, the arc blocking area of 91 right part of baffle arc piece are greater than the gear of 91 left part of baffle arc piece Cambered surface product.Specifically, the periphery of baffle arc piece 91 is substantially trapezoidal, which is respectively bevel edge and right-angle side, right-angle side institute Position be the big position of arc blocking area.

A kind of clapper type relay suitable for heavy load of the utility model, the weld tabs 8 and its weld tabs leading foot 81 Design, can satisfy the demand of Automated assembly, dynamic spring leading foot can be replaced, not only simplify the structure of movable contact spring 5, work It is easy to accomplish in skill, and be conducive to miniaturization and the densification of product, so that the utility model is met the working environment of heavy load. Except this, the utility model also solves existing relay and uses conductivity present in yoke leading foot is low, fever is serious to ask Topic.The weld tabs 8 is u-shaped, and its right and left is respectively fitting into the left and right sides of yoke another side 32, can make whole knot Structure keeps compact, occupies little space.The right and left 82 of the weld tabs 8 and yoke another side 32 are combined with the position limiting structure, Weld tabs 8 can be limited in the vertical direction, avoid the tensile property of the weld tabs 8 described in assembling process insufficient or its weldering Piece leading foot 81 is jacked up and movable contact spring 5 is caused to deform and influence properties of product.

The setting of the baffle arc piece 91 can be increased in contactor gap, when heavy load under arc erosion more serious situation, Effectively preventing electric arc splash sprays to shell, to avoid shell part by electric arc splash scorification.Particularly, baffle arc piece 91 with Limit film 9 is integrally formed, and while guaranteeing 91 arc blocking effect of baffle arc piece, efficiently solves the installation question of baffle arc piece 91.

Above-described embodiment only is used to further illustrate a kind of clapper type relay suitable for heavy load of the utility model, But the utility model is not limited to embodiment, and made by the above technical examples according to the technical essence of the present invention What simple modification, equivalent change and modification, each falls in the protection scope of technical solutions of the utility model.

Claims (10)

1. a kind of clapper type relay suitable for heavy load, including shell, magnetic circuit system and contact system, magnetic circuit system include Armature, yoke, iron core and the bobbin for being wound with enameled wire, iron core are arranged in bobbin, and yoke is in L-shaped, and yoke one Side is connected with iron core one end, and yoke another side cooperates in bobbin side；Contact system includes movable contact spring, static contact spring piece, quiet spring Piece is set to bobbin, and is equipped with stationary contact and quiet spring leading foot, and movable contact spring is in L-shaped, and movable contact spring is another with yoke on one side While being connected, movable contact spring another side is connected with armature, and armature is made to be against the knife-edge part of yoke and opposite with the iron core other end It answers；Movable contact spring another side is equipped with movable contact, corresponding with the stationary contact of static contact spring piece；It is characterized by: the contact system further includes Weld tabs, the conductivity of the weld tabs are greater than the conductivity of yoke, and the thickness of the weld tabs is greater than the thickness of movable contact spring, the weld tabs and dynamic spring Piece is electrically connected on one side, and the weld tabs is equipped with weld tabs leading foot.

2. the clapper type relay according to claim 1 suitable for heavy load, it is characterised in that: the weld tabs with it is described Yoke another side, which is combined with, is parallel to the position limiting structure that the direction of bobbin axis moves for limiting weld tabs edge.

3. the clapper type relay according to claim 2 suitable for heavy load, it is characterised in that: the weld tabs is in U-shaped Shape, the right and left of the weld tabs are respectively fitting into the left and right sides of yoke another side, and cooperate respectively with the yoke another side There is the position limiting structure, the right and left of the weld tabs is electrically connected with the movable contact spring on one side respectively；Match on the bottom edge of the weld tabs It closes in the side where another edge tail of yoke, and is equipped with the weld tabs leading foot.

4. the clapper type relay according to claim 3 suitable for heavy load, it is characterised in that: the position limiting structure packet The respectively arranged protrusion of the right and left of the weld tabs and the respectively arranged card slot in left and right ends of the yoke another side are included, or Person, the position limiting structure include the right and left of the left and right ends respectively arranged protrusion and the weld tabs of the yoke another side Respectively arranged card slot, each protrusion engage with corresponding card slot respectively.

5. the clapper type relay according to claim 3 suitable for heavy load, it is characterised in that: the left and right of the weld tabs Both sides rivet fixation with the movable contact spring respectively on one side.

6. the clapper type relay according to claim 1 suitable for heavy load, it is characterised in that: further include arc blocking knot Structure, the arc blocking structure configure between the contact sets and the shell being made of the stationary contact and movable contact.

7. the clapper type relay according to claim 6 suitable for heavy load, it is characterised in that: the arc blocking structure packet Baffle arc piece is included, position of the bobbin on the outside of movable contact spring another side is provided with the progress of the movement travel to movable contact spring another side The limit film of limitation, the baffle arc piece are located in the limit film.

8. the clapper type relay according to claim 7 suitable for heavy load, it is characterised in that: the baffle arc piece left part It is different with the arc blocking area of right part, and the big position of arc blocking area corresponds to more one side of electric arc splash of contact sets generation.

9. the clapper type relay according to claim 7 suitable for heavy load, it is characterised in that: the baffle arc piece and limit Bit slice is integrally formed, and the two constitutes L-shaped.

10. the clapper type relay according to claim 1 suitable for heavy load, it is characterised in that: the weld tabs is pure Copper or Copper alloy material；The weld tabs and its weld tabs leading foot are integrally formed.