CN101399127A

CN101399127A - Pushbutton

Info

Publication number: CN101399127A
Application number: CNA2008101669864A
Authority: CN
Inventors: 鲁道夫·齐默尔曼
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2007-09-28
Filing date: 2008-09-27
Publication date: 2009-04-01
Anticipated expiration: 2028-09-27
Also published as: EP2043119A1; EP2043119B1; CN101399127B

Abstract

The present invention relates to a keystroke which is provided with a casing. A push button is elastically placed on the spring in the casing, and furthermore the push button and casing are sealed with each other through a sealing component. The sealing component is designed to be used for restoring the push button a zero position after operation. The task of the invention is to guarantee a higher sealing performance of sealing component at each working position of keystroke. Thus the sealing component is clamped between the casing and the push button. Thus a sealing ring and/or a flange 2.1 which is integratedly connected with the sealing component or is the separated component are installed. The clamping ring and the flange can be formed through partial strengthening of film-shaped sealing component. The manufacturing and assembling of keystroke all have evident advantage compared with known keystroke.

Description

Button

Technical field

The present invention relates to a kind of button, it has shell, lays button in this shell spring, and wherein button and shell seal mutually by potted component, and seal designs becomes flexible, is used for making button be returned to original position after operation.

Background technology

The button of this pattern always is used to for example so-called people/machine interface input instruction.To this, can consider not only to be used to connect Control current, and be used to open circuit, its method is with the release of button use as circuit breaker.Proposed the high requirement in following aspect for this button: expense is few as far as possible for useful life, robustness, electric component waterproof and dustproof sealing and processing and manufacturing, and operation is reliable.

By the button of DE 199 50 367 known a kind of rubber-like potted components, cost is configured highly beneficially owing to the dual-use function of potted component for it, and the sealing element also plays the effect of spring except sealing function.Yet, load at fluid that sealing function still has deficiency when very big, wherein the different sealing effect owing to power has fluctuation under operation and inoperation state.

Summary of the invention

Task of the present invention is to propose a kind of button, can guarantee that in this button button returns back to original position reliably and has sealing effectiveness with the improvement of location independent simultaneously.

Task of the present invention solves by a kind of button that starts described pattern, this button be characterised in that a kind of be clamped on the shell and button on potted component.

In according to button of the present invention, potted component also plays spring function and is used to make the button of operating to be returned to initial position when release button except sealing function is arranged.To this, between shell and button, play its sealing function simultaneously.For this reason, be clamped in it on shell respectively and on the button.Advantageously, can keep the dual-use function of potted component and improve sealing, the position of this sealing and button or the state of button irrespectively are guaranteed.In a kind of favourable form of implementation, with clamping ring, especially a kind of clamping ring flexible or elastic dilatation is used to make potted component to be clamped in the inwall of shell with its sealing surface that is provided for clamping.For this reason, the inwall of shell be designed to circle and have a radius bigger than the outer radius of applied clamping ring.In this way, clamping ring makes potted component produce expansion between clamping ring and inwall and therefore clamps.

Advantageously, clamping ring is also made by a kind of stiff material, especially metal or plastics.Therefore, clamping ring makes the clamping of potted component realize important spatial stability, and if still the external diameter of knocked-down potted component have a magnitude of interference with respect to the internal diameter of key casing, that has just guaranteed good sealing property.Therefore in addition, potted component can be processed into elastomer metal-composite members with clamping ring and be implemented in the manufacture process hardware economy and advantageously pack into automatically or grab automatically and clamp.In addition, may run into following problem in other words: the purely elastic parts of must packing into.If clamping ring has the cross section of L shaped or U-shaped, clamping ring and clamping just obtain special fixing so.Almost got rid of the bending of clamping ring by L-or U-shape, just avoided further sliding in the shell of button based on its shape by an additional block in addition.

In the favourable form of implementation of another one, sealing surface have around rib, these ribs can make clamping force concentrate, so this power just acts on the less area exposed and therefore and can change into the higher sealing force of unit are.Rib can have a kind of shape of similar flange here, so that equally also realized reliable sealing when pressurization.

In a kind of favourable form of implementation, the part by flexible potted component strengthens realizes clamping ring.By differential hardening, can make clamping ring by identical materials, also be that wherein, clamping ring is made of the part through sclerosis of potted component as potted component.In certain limit, can be advantageously by means of electromagnetic radiation, radioactive ray uses chlorination to handle or a kind of ray crosslinked (Strahlenvernetzung) comes local the enhancing.

Advantageously, also be applicable to the potted component of differential hardening for the favourable processing of softening fully parts, especially by radially being pressed into, import or by having self centering being pressed into during adaptive automatically assembling, it is finally fixing not need intermediate steps to carry out by straight line.

In a kind of favourable form of implementation, potted component is clamped between button upper-part and button lower member partly.Here also realized higher sealing based on clamping action, wherein, button upper-part and button lower member can be separated from each other out in case of necessity or mutually chucking, with screw-driving or be connected with each other in a similar manner.

Advantageously, groove with a top or bottom of button upper-part and/or button lower member is used to place potted component.Here just clamp the part of the button side of potted component.Having improved the supporting of potted component in button by this top and lower recess installs, even thereby having the motion of directly pushing the time also can keep good sealing property, this is because stoped the landing or the slippage of potted component effectively by groove separately.

Advantageously, seal designs becomes convex or similar flange ground, to be clamped on the button.Thus, can be adapted to the expansion and the raising sealing function of top or bottom well.

Other favourable form of implementation of the present invention and preferred improvement project can be by drawing in the description of the drawings and/or the dependent claims.

Description of drawings

An advantageous embodiment of the invention has entered in the accompanying drawings to be described and explanation.Accompanying drawing is depicted as:

Fig. 1: the cutaway view of the member after the assembling of circular button;

Fig. 2: the enlarged drawing at a position shown in Figure 1.

Embodiment

Fig. 1 is portion's view of member after the assembling of circular button.It is rotational symmetric basically that circular key structure becomes, and wherein rotation is arranged in the cutting plane and on the diagram plane and extends from bottom to top.In addition, the shell among Fig. 1 1.5 only illustrates the left side.Its inner chamber equally also is designed to rotational symmetric.

Shell 1.5 designs like this, and promptly potted component 1.6 is encased in 1.5 li on shell with button upper-part 1.8 and button lower member 1.9 on direction of operating when mounted.The correspondence design of the inboard of shell 1.5 makes potted component 1.6 be arranged in a clearly position of regulation with the clamping ring 1.2 that is used to move.Here clamping ring 1.2 adopts the L-tee section to prove favourable, and this steps up to encircle 1.2 simultaneously also as the bearing-surface on the shell 1.5.

The major function of clamping ring 1.2 is, the sealing surface 1.4 that will have a sealing ring 2.2 is pressed onto on the inboard of shell 1.5 and therefore potted component 1.6 is clamped.More aptly, the interference size by clamping ring 1.2 realizes clamping, and clamping ring can easily keep clamping force by the L-tee section, that is to say on sealing surface 1.4 material deformation can not occur.According to operation button upper-part 1.8 time, flange 2.1 is moved on the direction of clamping ring 1.2 downwards, thereby make potted component 1.6 strain take place and form its spring function effect, this effect is opposite with the operational movement direction.Stoped potted component 1.6 unclamped from shell 1.5 inwalls by clamping effectively in this state just by means of clamping ring 1.2.

Button upper-part 1.8 and button lower member 1.9 can design all-in-one-piece or can be by fixedly being connected with each other.If button upper-part 1.8 and button lower member 1.9 constitute unique button upper-part, installing button to because the elasticity of flange 2.1 just can just realize that it installs by putting simply so, thereby flange 2.1 just slides into 1.3 li of the lower recess of 1.7 li of the upper grooves of button upper-part 1.8 and button lower member 1.9.Just stoped effectively in operation or landing or slippage when resetting based on flange 2.1 and expansion thereof.This can further support by the following method, promptly when button is implemented with two parts, additionally causes clamping by the fixture between button upper-part 1.8 and the button lower member 1.9.Therefore, for example can not only realize the fixing of button parts by a screw, and, realize therefore the clamping of flange 2.1 is also realized the clamping of potted component 1.6 at least partly.

Advantageously, flange 2.1 and/or clamping ring 1.2 additionally are applicable to sealing when pressurizeing better by strengthening.Here, not only clamping ring 1.2 but also/or flange 2.1 can be the parts of potted component 1.6 and only form by strengthening or reinforcing.Alternatively, flange 2.1 and/or clamping ring 1.2 are made by another material, for example metal or plastics.

No matter be local stiffening, film-shaped sealing component 1.6, also be based on the potted component 1.6 of two kinds of materials, elastomer metal-composite members for example, all make make and the expense of assembling more favourable.Two kinds of forms of implementation be applicable to metal parts automatically put into pressure injection-or compacting tool set in and two kinds of forms of implementation also be particularly suitable for automatically promptly and pack into or be pressed into.

Potted component 1.6 is extruding diaphragms of a kind of axial work.The driving part 1.1 of potted component 1.6 time changes its shape and causes elastic reaction to operational movement in operation.In case operator's terminating operation, this elastic reaction are positioned on the original position button 1.8,1.9 again.

Thus, potted component 1.6 combines reset kinetic energy and sealing function.1.6 kinds of the potted components with local element, for example flange 2.1 and/or clamping ring 1.2 of strengthening, can advantageously realize adaptive assembling automatically, this is to realize because radially be pressed into to introduce by a kind of straight line, and this straight line introducing has automatic centering, and one until the final fixing intermediate steps that all do not have.

Fig. 2 has represented the enlarged drawing at X position among Fig. 1.

In sum, the present invention relates to a kind of button, this button has a shell, one Button spring flexibly is contained in this shell, and wherein button and shell by a sealing Element keeps sealing mutually, and seal designs is used for making button to return after operation To original position. Task of the present invention is, guarantees close to each operating position of button The better sealing property of envelope element. For this reason, be clamped on the shell potted component and button On. For this reason, be provided with a clamping ring and/or a flange, they are connected one with potted component Body or the member that separates separately. Clamping ring and flange can be by membrane-like sealing units The part of part is strengthened forming. No matter be for the manufacturing of button or for the assembling of button , compare with known button, have obvious advantage.

Claims

1. button, has shell (1.5), be contained in this shell, wherein button (1.8 button (1.8,1.9) spring, 1.9) and shell (1.5) mutually keep sealing by potted component (1.6), and potted component (1.6) is configured to spring ground, is used for making described button (1.8,1.9) return back to original position after operation, it is characterized in that, described potted component (1.6) be clamped at that shell (1.5) is gone up and described button (1.8,1.9) on.

2. by the described button of claim 1, wherein, described potted component (1.6) has clamping ring (1.2), and described clamping ring is provided for making the sealing surface (1.4) of potted component (1.6) to be clamped on the inwall of described shell (1.5).

3. by the described button of claim 2, wherein, described clamping ring (1.2) is made by a kind of non-elastic material, especially metal or plastics.

4. by claim 2 or 3 described buttons, wherein, described sealing surface (1.4) have one or more around projection (2.2).

5. by the described button of one of aforesaid right requirement, wherein, described potted component (1.6) is clamped between button upper-part (1.8) and the button lower member (1.9) partly.

6. by the described button of claim 5, wherein, described button upper-part (1.8) has the groove (1.7) on top and/or the groove (1.3) that described button lower member (1.9) has the bottom.

7. by the described button of one of aforesaid right requirement, wherein, described potted component (1.6) has projection or flange (2.1) to be clamped on the button (1.8,1.9).