CN209344383U - Switch jaw contact part - Google Patents

Abstract

The utility model discloses a kind of contact, and the switch jaw contact part is cylindrical in shape, and the switch jaw contact part includes: stack shell；And, fixed ring, it is connected to the end of the stack shell, the stack shell is equipped with the necking section shunk to the stack shell axis close to the end of the fixed ring, the stack shell further includes the waist for connecting the necking section, radius in the middle part of the waist is less than the radius of the fixed ring, and the necking section and the waist, which are used to abut contact pin technical solutions of the utility model, has the advantages that switch jaw contact part conducts electricity very well.

Description

Switch jaw contact part

Technical field

The utility model relates to contact field, in particular to a kind of reed.

Background technique

High current connector has been widely used in new-energy automobile, in the industries such as traffic track.Existing electric connector connects Contact element mainly uses elastic slice or reed structure, wherein have using reed punching press than more typical structure and twisting formation turns spring, And the hat spring using reed closing waist.Turn spring single reed structure have tensile capacity it is poor, be easily deformed, the service life it is shorter lack Point.Existing hat spring passes through punching press and middle part closing waist, to usually be preced with spring in the form of being small at both ends and big in the middle and pass through its closing waist Middle part abutted with contact pin, have contact area it is small, contact resistance is big, the disadvantage of electric conductivity difference.

Utility model content

The main purpose of the utility model is to propose a kind of switch jaw contact part, it is intended to promote the electric conductivity of switch jaw contact part Energy.

To achieve the above object, the utility model proposes switch jaw contact part, the switch jaw contact part is cylindrical in shape, the spring Piece contact includes:

Stack shell；And

Fixed ring, is connected to the end of the stack shell, and the stack shell is equipped with close to the end of the fixed ring to the cylinder The necking section that body axis are shunk, the stack shell further includes the waist for connecting the necking section, and the radius in the middle part of the waist is less than The radius of the fixed ring, the necking section and the waist are for abutting contact pin.

Optionally, the switch jaw contact part includes two fixed rings, and the stack shell includes multiple grizzly bars, the grizzly bar Both ends be separately connected two fixed rings, the grizzly bar is equipped with close to the end of the fixed ring to recessed on the inside of the grizzly bar Contraction section, the contraction sections of multiple grizzly bars forms the necking section.

Optionally, the contraction section is arc-shaped.

Optionally, multiple grizzly bars are provided at circumferentially spaced along the fixed ring.

Optionally, the grizzly bar and the stationary annular at angle α be acute angle.

Optionally, the grizzly bar and the fixed ring are integrally formed.

Optionally, the junction rounding off of the grizzly bar and the fixed ring.

Optionally, the grizzly bar is in twisting states.

The waist is between two necking sections.

Optionally, the radius of the waist is gradually reduced from end to middle part.

Technical solutions of the utility model by the end of the stack shell be arranged to stack shell axis shrink necking section so that The radius of the necking section is less than the radius of the fixed ring, when contact pin is inserted into the switch jaw contact part, the contact pin and institute Necking section contact is stated, so that contact pin is electrically connected with the switch jaw contact part.When traditional hat spring electric connection contact pin and jack part, hat The middle part of spring stack shell is connect with contact pin, and the fixed ring for being preced with spring is connect with jack part, and the electric current between contact pin and jack part is in hat spring The path length of upper process, so that loss of the circuit on hat spring is big；And the contact pin of technical solutions of the utility model and jack part it Between by fixed ring and be connected and fixed the necking section of ring and conduct, the distance between the necking section and the fixed ring are small, because This is compared with traditional hat spring, the path of the electric current process between contact pin described in technical solutions of the utility model and the jack part Short, so that reducing the electrical loss between contact pin and jack part, realizing reduces contact resistance, so that the switch jaw contact part has The advantage having had conductivity.Technical solutions of the utility model necking section and waist can abut to conduct with contact pin slotting Needle and jack part, to lower contact resistance, are conducive to be promoted so that the contact area of the switch jaw contact part and contact pin increases The electric conductivity of the switch jaw contact part.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.

Fig. 1 is the structural schematic diagram of one embodiment of the utility model reed connector；

Fig. 2 is the front view of Fig. 1 reed connector；

Fig. 3 is the structural schematic diagram of the molding sheet of reed connector before the forming in Fig. 1；

Fig. 4 is the front view that sheet is formed in Fig. 3.

Drawing reference numeral explanation:

Label	Title	Label	Title
				100	Stack shell	110	Necking section
120	Waist	130	Grizzly bar
				131	Contraction section	132	Middle section
200	Fixed ring	300	Form sheet
				310	Rectangular edge	320	Connection strap

The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, fall within the protection scope of the utility model.

It is to be appreciated that if related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding, Afterwards ...), then directionality instruction is only used for explaining opposite between each component under a certain particular pose (as shown in the picture) Positional relationship, motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.

In addition, if relating to the description of " first ", " second " etc. in the utility model embodiment, " first ", " the Two " etc. description is used for description purposes only, and is not understood to indicate or imply its relative importance or is implicitly indicated meaning The quantity of the technical characteristic shown." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one A this feature.In addition, the meaning of the "and/or" occurred in full text is, including three technical solutions, and by taking " A and/or B " as an example, packet The scheme for including A scheme or B scheme or A and B while meeting.In addition, the technical solution between each embodiment can be tied mutually Close, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occur it is conflicting Or will be understood that the combination of this technical solution is not present when cannot achieve, also not the protection scope of the requires of the utility model it It is interior.

The utility model proposes a kind of switch jaw contact parts.

In the utility model embodiment, as shown in Figure 1 and Figure 2, switch jaw contact part, the switch jaw contact part is cylindrical in shape, institute Stating switch jaw contact part includes: stack shell 100；And fixed ring 200, it is connected to the end of the stack shell 100, the stack shell 100 leans on The end of the nearly fixed ring 200 is equipped with the necking section 110 shunk to 100 axis of stack shell, and the stack shell 100 further includes connecting The waist 120 of the necking section 110 is connect, the radius at 120 middle part of waist is less than the radius of the fixed ring 200, the neck Contracting portion 110 and the waist 120 are for abutting contact pin.The contact pin activity plugs the axis hole of the switch jaw contact part, the spring Piece contact is arranged in the jack of jack part, and the fixed ring 200 with the hole wall of jack for abutting, so that the reed connects Contact element conducting jack part and contact pin, the electric current between contact pin and the jack part are needed by the stack shell 100 and the fixation Ring 200.

Technical solutions of the utility model are by being arranged the constriction shunk to 100 axis of stack shell in the end of the stack shell 100 Portion 110, so that the radius of the necking section 110 is less than the radius of the fixed ring 200, when contact pin is inserted into the switch jaw contact part When, the contact pin is contacted with the necking section 110, so that contact pin is electrically connected with the switch jaw contact part.Traditional hat spring is electrically connected When patching needle and jack part, the middle part for being preced with the stack shell of spring is connect with contact pin, and the fixed ring for being preced with spring is connect with jack part, contact pin and insert The path length that electric current between orifice passes through on hat spring, so that loss of the circuit on hat spring is big；And the contact pin of the present embodiment By fixed ring 200 and be connected and fixed the necking section 110 of ring 200 between jack part and conduct, the necking section 110 with it is described The distance between fixed ring 200 is small, therefore compared with traditional hat spring, between contact pin described in the present embodiment and the jack part The path that electric current passes through is short, so that the electrical loss between contact pin and jack part is reduced, so that the switch jaw contact part has The advantages of conducting electricity very well.Technical solutions of the utility model necking section 110 and waist 120 can be abutted with contact pin to conductance Logical contact pin and jack part, to lower contact resistance, are conducive to so that the contact area of the switch jaw contact part and contact pin increases Promote the electric conductivity of the switch jaw contact part.

Further, in the present embodiment, as shown in Figure 1 and Figure 2, the switch jaw contact part includes two fixed rings 200, the stack shell 100 includes multiple grizzly bars 130, and the both ends of the grizzly bar 130 are separately connected two fixed rings 200, institute It states grizzly bar 130 and is equipped with the contraction section 131 recessed to 130 inside of the grizzly bar, multiple grid close to the end of the fixed ring 200 The contraction section 131 of item 130 forms the necking section 110.Grizzly bar 130 described in the present embodiment has elasticity, and grizzly bar 130, which has, to be held The advantages of easy deformation, so that its stress is more steady soft when contact pin plugs in the switch jaw contact part.Described in the present embodiment Switch jaw contact part is not limited only to above-mentioned technical proposal, in other implementations, is also possible to the switch jaw contact part and is provided only with one Fixed ring, the stack shell include multiple grizzly bars, and the both ends of the grizzly bar are separately connected two fixed rings, and the grizzly bar is close The end of the fixed ring is equipped with to contraction section recessed on the inside of the grizzly bar, and the contraction section of multiple grizzly bars forms the constriction Portion.

Further, in the present embodiment, as shown in Fig. 2, the contraction section 131 is arc-shaped, so that described in contact pin insertion It is more smooth when switch jaw contact part, while the arcuate structure of the contraction section 131 makes the contraction section 131 by contact pin Extruding force gradually changes, the extruding force cataclysm for avoiding contact pin from being subject to and make grizzly bar 130 that breakage occur, be conducive to extend reed and connect The service life of contact element.Contraction section 131 described in the present embodiment is not limited only to above-mentioned technical proposal, in other embodiments, can also To be, the V-shaped setting of the contraction section of the grizzly bar, the tip of the contraction section for being abutted with contact pin so that the grizzly bar and Contact pin abuts, and realizes that switch jaw contact part is electrically connected with contact pin.

Further, in the present embodiment, as shown in Figure 1 and Figure 2, multiple grizzly bars 130 were along the fixed ring 200 weeks It is arranged to interval.The grizzly bar 130 is mutually indepedent, so that the necking section 110 of the stack shell 100 is more easier, deformation occurs, from And stress is more steady soft when contact pin is plugged in the switch jaw contact part.Further, in the present embodiment, as schemed Shown in 2, the angle α that the grizzly bar 130 is formed with the fixed ring 200 is acute angle, so that the axis of grizzly bar 130 and switch jaw contact part Line is arranged in angle, so that the contact pin in grizzly bar 130 and insertion reed is arranged in angle, is conducive to ensure described in contact pin insertion It is well contacted when inside switch jaw contact part with grizzly bar 130.Grizzly bar 130 described in the present embodiment is not limited only to above-mentioned technology, at other In embodiment, it is also possible to the grizzly bar and is vertically arranged with the fixed ring, so that the axis of grizzly bar 130 and switch jaw contact part It is arranged in parallel, has the advantages that easy to process.

Further, in the present embodiment, the grizzly bar 130 is integrally formed with the fixed ring 200, conductive energy Stable advantage.Switch jaw contact part described in the present embodiment in the preparation, first carries out blanking punched molding to sheet metal, such as Fig. 3, figure Shown in 4, molding sheet 300 is obtained, the molding sheet 300 includes two interval rectangular edge 310, and is connected to two institutes Multiple connection straps 320 between rectangular edge 310 are stated, and multiple connection straps 320 are arranged in parallel, the connection strap 320 Intersect with the rectangular edge 310 inclination；Then length direction of the sheet 300 along rectangular edge 310 will be formed to crimp, and So that the both ends of rectangular edge 310 are docked, so that the molding sheet 300 forms the switch jaw contact part, the square Shape straight flange forms the fixed ring 200, and the connection strap 320 forms grizzly bar 130.Switch jaw contact part described in the present embodiment not only limits In above-mentioned technical proposal, in other embodiments, it is also possible to by carrying out blanking punched molding to metal cylinder, to be formed State switch jaw contact part.

Further, in the present embodiment, the junction rounding off of the grizzly bar 130 and the fixed ring 200, avoids Stress is concentrated in the junction of the grizzly bar 130 and fixed ring 200 and the junction is caused to be easy to happen fracture, is conducive to extend The service life of the switch jaw contact part.And the junction rounding off of the grizzly bar 130 and the fixed ring 200, favorably In the plug of contact pin smoothness in stack shell 100, avoid contact pin in the junction card plug of the grizzly bar 130 and the fixed ring 200.

Further, in the present embodiment, as shown in Figure 1, the grizzly bar 130 is in twisting states.Multiple grizzly bars 130 For abutting pin clamping, the grizzly bar 130 is in twisting states, is conducive to the elasticity and mechanical strength that enhance the grizzly bar 130, To enhance grizzly bar 130 to the clamping effect of contact pin and the damping performance of the reed.In the present embodiment, the grizzly bar 130 Twisting states form in curling for the connection strap 320 for forming sheet 300, have the advantages that good stability of the dimension, fit Close mass production.The grizzly bar 130 is also possible to after the molding sheet 300 crimps, then by the connection strap 320 are reversed to obtain, it is also possible that in another embodiment, connection strap is vertical with rectangular edge, molding sheet is rolled into cylinder After shape, then two fixed rings are relatively rotated, so that connection strap torsion and closing waist, to form grizzly bar 130.This Grizzly bar 130 described in embodiment is not limited only to above-mentioned technical proposal, in other embodiments, is also possible to the grizzly bar 130 in flat Straight state.

Further, in the present embodiment, as shown in Figure 1 and Figure 2, the both ends of the stack shell 100 are equipped with necking section 110, The waist 120 is arranged between two necking sections 110, and the radius at 120 middle part of waist is less than the fixed ring 200 Radius, the waist 120 is for abutting contact pin.When the contact pin is inserted into the stack shell 100, the contact pin and the waist 120 and two necking sections 110 abut, multiple constrictions 100 are further such that the contact pin and the reed Contact area between contact increases, to reduce the contact resistance between the contact pin and the switch jaw contact part, is promoted The electric conductivity of the switch jaw contact part.The waist 120 abuts the contact pin with two necking sections 110 simultaneously, so that Stack shell 100 is more firm to the clamping of contact pin, while being conducive to be promoted the anti-seismic performance of the switch jaw contact part.

Further, in the present embodiment, as shown in Fig. 2, the radius of the waist 120 gradually subtracts from end to middle part It is small.When contact pin is inserted into stack shell 100, first contacts, then contacted again with waist 120, the radius of the waist 120 with necking section 110 It is tapered that the contact pin gradually changes the extruding force of the waist 120, advantageously allow contact pin stress in plug It is steady soft, it is conducive to extend the service life of the switch jaw contact part.The necking section 110 is conducive to reduce the stack shell 100 radian, so that the difference of the radius at 100 middle part of the radius at 100 both ends of stack shell and the stack shell becomes smaller, so that contact pin is inserted When entering in the stack shell 100, the contact area between contact pin and the stack shell 100 increases, and achievees the effect that reduce contact resistance, Therefore the conductive advantage that can be good of switch jaw contact part described in the present embodiment.

Further, in the present embodiment, the grizzly bar 130 includes two contraction sections 131 and two contractions of connection The middle section 132 of section 131, the middle section 132 are in the arc recessed to tube body axis, and the middle section 132 of multiple grizzly bars 130 forms The waist 120 of the stack shell 100.It is described to interrupt arc-shaped setting, it advantageously allows when contact pin plugs in the stack shell 100 more Add smoothness.Switch jaw contact part described in the present embodiment also has the advantages that simple for structure, manufacturing cost is low, is suitable for mass production.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, It is all under the inventive concept of the utility model, equivalent structure made based on the specification and figures of the utility model becomes It changes, or directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.

Claims (9)

1. a kind of switch jaw contact part, which is characterized in that the switch jaw contact part is cylindrical in shape, and the switch jaw contact part includes:

Stack shell；And

Fixed ring, is connected to the end of the stack shell, and the stack shell is equipped with close to the end of the fixed ring to the stack shell axis The necking section of linear shrinkage, the stack shell further include the waist for connecting the necking section, and the radius in the middle part of the waist is less than described The radius of fixed ring, the necking section and the waist are for abutting contact pin.

2. switch jaw contact part as described in claim 1, which is characterized in that the switch jaw contact part includes two fixations Ring, the stack shell include multiple grizzly bars, and the both ends of the grizzly bar are separately connected two fixed rings, and the grizzly bar is close to described The end of fixed ring is equipped with to contraction section recessed on the inside of the grizzly bar, and the contraction section of multiple grizzly bars forms the necking section.

3. switch jaw contact part as claimed in claim 2, which is characterized in that the contraction section is arc-shaped.

4. switch jaw contact part as claimed in claim 2, which is characterized in that multiple grizzly bars are circumferentially-spaced along the fixed ring Setting.

5. switch jaw contact part as claimed in claim 2, which is characterized in that the grizzly bar and the stationary annular at angle α For acute angle.

6. switch jaw contact part as claimed in claim 2, which is characterized in that the grizzly bar and the fixed ring are integrally formed.

7. switch jaw contact part as claimed in claim 2, which is characterized in that the grizzly bar and the junction of the fixed ring are round and smooth Transition.

8. switch jaw contact part as claimed in claim 2, which is characterized in that the grizzly bar is in twisting states.

9. switch jaw contact part as claimed in any one of claims 1 to 8, which is characterized in that the radius of the waist from end to Middle part is gradually reduced.