CN201122549Y

CN201122549Y - Multi-way switch

Info

Publication number: CN201122549Y
Application number: CNU2007201711699U
Authority: CN
Inventors: 洪世煜
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-03
Filing date: 2007-12-03
Publication date: 2008-09-24
Anticipated expiration: 2017-12-03

Abstract

The utility model relates to a multiway switch, which comprises a plastic axle core, an axle sleeve, a casing, a brush, a steel ball, a spring, an internal terminal, an external terminal and a base plate, wherein the axle core comprises a core sleeve and a core rod, the casing is suited on the axle sleeve, the axle sleeve is suited on the core rod of the axle core, a circular concave and convex ring is arranged on the inner end surface of the casing, and is contacted with the steel ball, the steel ball is propped against a spring, the other end of the spring is contacted with the inside of the blind hole of the core sleeve, the brush is fixed at the other side of the core sleeve, the casing is connected with the base plate, the axle core is arranged between the casing and the base plate, the internal terminal and the external terminal are arranged between the axle core and the base plate, and are respectively inserted on the base plate. The multiway switch has the advantages of simple structure, good rotation hand feeling, stable switch performance, and low cost.

Description

A kind of variable connector

Technical field

The utility model relates to switch, is meant that mainly a kind of switching circuits such as reflection, sound equipment, household electrical appliances, instrument, automobile and electrophone that are used for switch the rotary multiconductor variable connector of different levels feel demand.

Background technology

Existing variable connector has two kinds on ball type structure and no ball type structure at present:

1, the variable connector (see figure 1) of ball type structure: the variable connector of ball type structure, its location structure are that rolling on the convex-concave platform of slyness forms with the fixing steel ball of thin stainless steel substrates.Because its stainless steel substrates is thinner, can't be well fixing steel ball, thereby there is the hidden danger that easily drops in steel ball after rotating life test through several thousand times.

2, the variable connector (see figure 2) of no steel-ball type structure: the variable connector of this kind structure, it is the improvement version of preceding a kind of steel-ball type structure variable connector, its location structure is to strike out an arc surface that replaces steel ball with stainless steel substrates self, and sliding on the convex-concave platform of slyness forms.Though this kind structure has solved the hidden danger that steel ball easily drops, because of its stainless steel substrates arc surface and the slip of convex-concave table top, the motion contact-making surface is excessive, friction increases relatively, cause problems such as feel is not too smooth and easy, not slick and sly, particularly light torsion requirement can't be satisfied client's multiple demand especially.

Summary of the invention

The purpose of this utility model provides a kind of various part that is intended to reduce the number of existing variable connector, overcome the problem that existing variable connector exists, and satisfy different torsion requirements, and feel is than the totally-enclosed smoothly ball type variable connector of slyness.

The realization the technical solution of the utility model is: this variable connector comprises plastic cement axle core, axle sleeve, shell, brush, steel ball, spring, inner terminal, external terminal, substrate, its axis core comprises core retainer plate and core bar two parts, shell is socketed on the axle sleeve, axle sleeve is socketed on the core bar of a core, inner face at shell is provided with ring-like convex-concave circle, this convex-concave circle contacts with steel ball, this steel ball apical grafting one spring, in the blind hole of this spring other end contact core retainer plate, be fixed with brush at the core retainer plate another side, shell and substrate link together, it between shell and substrate a core, between axle core and substrate, be provided with brush and in, external terminal, in, external terminal is plugged on the substrate respectively.

The core of this technical scheme comprises:

Described axle core comprises core retainer plate and core bar, wherein the core retainer plate both sides are provided with cavity, wherein be provided with blind hole in the side cavity, be provided with spring in this blind hole, this spring apical grafting has steel ball, opposite side cavity internal fixation has brush, also has inner terminal and external terminal between this brush and the substrate, and axle core and substrate couple together effectively by axle sleeve and shell.

The beneficial effect that the utlity model has: A reduces the number of the various part of existing variable connector: with plastic cement axle core 1 (see figure 6) of an injection moulding, substitute original five metals axle core 10, snap ring 40, shell fragment 30, flap 50 and rivet 20 (see figure 1)s, satisfying under the situation of performance, effectively save cost; B torsion in various degree requires and good rotation feel: the weight of rotary torsion is regulated by the power of spring, location structure adopts the rolling principle of steel ball at slick and sly convex-concave point, steel ball and spring are then limited by the blind hole that is injection molded into (circle counterbore), not only solved the hidden danger that steel ball easily drops, and satisfied the requirement of torsion in various degree, good rotation hand feel performance and stable switch performance are arranged again.

Description of drawings

Fig. 1 is traditional ball type variable connector structural representation.

Fig. 2 is the no ball type variable connector structural representation of tradition.

Fig. 3 is a contour structures schematic diagram of the present utility model.

Fig. 4 is the upward view of Fig. 3.

Fig. 5 is the assembling decomposing schematic representation of Fig. 3.

Fig. 6 is the internal structure partial schematic diagram of Fig. 3.

Fig. 7 is steel ball and the shell inter-working position view of Fig. 3.

Among the figure: 1 plastic cement axle core, 11 core bars, 12 core retainer plates, 13 blind holes, 2 brushes, 3 axle sleeves, 31 axle sleeve holes, 4 shells, 41 flaps, 42 claws, 43 convex-concave circles, 5 inner terminals, 6 external terminals, 7 substrates, 71 terminal holes, 72 bayonet sockets, 8 steel balls, 9 springs, 10 five metals axle cores, 20 rivets, 30 shell fragments, 40 snap rings, 50 flaps.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in the figure, this variable connector mainly is made up of plastic cement axle core 1, axle sleeve 3, shell 4, brush 2, steel ball 8, spring 9, inner terminal 5, external terminal 6 and substrate 7, its axis core 1 is made up of core retainer plate 12 and core bar 11, core retainer plate 12 both sides are provided with cavity, wherein be provided with blind hole 13 in the cavity of a side, be provided with spring 9 in this blind hole 13, this spring apical grafting one steel ball 8, opposite side cavity internal fixation has brush 2, inner terminal 5 and external terminal 6 also are installed between this brush and the substrate, and inner terminal 5 and external terminal 6 are inserted in respectively in the terminal hole 17 on the substrate 7; Axle sleeve 3 has axle sleeve hole 31, and its cylindrical is a stairstepping, and axle sleeve 3 is socketed on the core bar 11 by axle sleeve hole 31; Shell 4 is plate shaped, its two sides symmetry has rectangular flap 41, in the end of flap 41 claw 42 is arranged, inner face at shell 4 is provided with ring-like convex-concave circle (the convex-concave line of the wavy continuous fluctuating of a circle) 43, center at shell 4 is porose, shell 4 is contained on the ladder cylindrical of axle sleeve 3 by borehole jack, 72 li of the bayonet sockets of the claw 42 reeve substrates 7 on the shell 4, shell 4 links together with substrate 7, at this moment steel ball 8 is contacting with convex-concave circle 43 on the shell 4 under the effect of spring 9, simultaneously, brush 2 contacts with external terminal 6 with inner terminal 5.

Operation principle

Rotating shaft core, the axle core drives steel ball and spring, steel ball rolls on the convex-concave circle of shell under the pressure of spring, when steel ball is raised to protruding place, after when falling recess and carrying out motion cycle, formed slyness locating effect smoothly; Brush is in the transmission process of axle core, and external terminal in the contact realizes that the switch of many gears switches successively.

Claims

1. variable connector, it is characterized in that described switch comprises plastic cement axle core, axle sleeve, shell, brush, steel ball, spring, inner terminal, external terminal, substrate, its axis core comprises core retainer plate and core bar two parts, shell is socketed on the axle sleeve, axle sleeve is socketed on the core bar of a core, inner face at shell is provided with ring-like convex-concave circle, this convex-concave circle contacts with steel ball, this steel ball apical grafting one spring in the blind hole of this spring other end contact core retainer plate, is fixed with brush at the core retainer plate another side, shell and substrate link together, be a core between shell and substrate, between axle core and substrate, be provided with inner terminal and external terminal, in, external terminal is plugged on the substrate respectively.

2. variable connector as claimed in claim 1, it is characterized in that described axle core comprises core retainer plate and core bar, wherein the core retainer plate both sides are provided with cavity, wherein be provided with blind hole in the side cavity, be provided with spring in this blind hole, this spring apical grafting has steel ball, and opposite side cavity internal fixation has brush, also have inner terminal and external terminal between this cavity and the substrate, axle core and substrate couple together by axle sleeve and shell.