CN2906870Y

CN2906870Y - Switch key

Info

Publication number: CN2906870Y
Application number: CN 200620110436
Authority: CN
Inventors: 罗培锐; 林毅
Original assignee: Midea Group
Current assignee: Midea Group Co Ltd
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2007-05-30
Anticipated expiration: 2016-04-21

Abstract

The utility model discloses a switch button, it includes the button body, characterized by: the lower part of the key body (1) is provided with a groove (3) with a downward opening, and the groove is in clearance fit with a movable contact piece (21) of the switch (2). The utility model discloses carry out effectual location restriction to the button body, prevent that the button body from taking place the phenomenon of deflecting, avoid consequently causing the product to pass through the security performance test smoothly.

Description

a switch button

技术领域technical field

本实用新型涉及一种开关按键。The utility model relates to a switch button.

背景技术Background technique

市场上的多功能电器产品大都采用按键式开关来实现功能选择。目前对按键式开关的操作是这样的：在电路板外的操作面板上开有孔，孔中嵌入按键，按键一端用弹性元件弹性固定在操作面板上，一端设计成柱体正对着按键式开关的动触件，使用者不对按键施加力时，按键在弹性元件的作用下离开开关动触件，断开开关；使用者从控制面板外对按键施加力时，按键向开关方向发生位移，带动开关的动触件发生位移，导通开关。Most of the multi-functional electrical products on the market use push-button switches to realize function selection. At present, the operation of the push-button switch is as follows: a hole is opened on the operation panel outside the circuit board, and a button is embedded in the hole. The movable contact of the switch, when the user does not apply force to the button, the button will leave the movable contact of the switch under the action of the elastic element, and the switch will be disconnected; when the user applies force to the button from the outside of the control panel, the button will move towards the switch direction, The moving contact that drives the switch is displaced and the switch is turned on.

这种按键结构存在的不足之处是：一般电路板上的按键式开关体积小，开关动触件与按键的接触面小，当按键所受力有一定角度倾斜时，按键容易从开关动触件上发生偏转甚至损害弹性元件的弹性；另外产品在通过安全性能测试时，由于试验销尺寸较小，容易使按键受力角度倾斜而发生偏转，导致试验销从偏转产生的空隙中探到带电部件，给产品顺利通过安全性能测试带来诸多不便。The shortcomings of this button structure are: the button-type switch on the general circuit board is small in size, and the contact surface between the switch movable contact and the button is small. Deflection occurs on the part or even damages the elasticity of the elastic element; in addition, when the product passes the safety performance test, due to the small size of the test pin, it is easy to tilt the force angle of the key and cause deflection, causing the test pin to detect live electricity from the gap generated by the deflection. Parts have brought a lot of inconvenience to the product to pass the safety performance test smoothly.

实用新型内容Utility model content

为克服上述开关按键结构不定位且易发生偏转的不足，本实用新型提供一种开关按键，其结构简单，能防止按键发生不定位或者偏转现象。In order to overcome the above disadvantages that the structure of the switch key is not positioned and is prone to deflection, the utility model provides a switch key, which has a simple structure and can prevent the phenomenon of non-positioning or deflection of the key.

为了达到上述目的，本实用新型的一种技术方案是，其包括按键本体，其特征是：在按键本体的下部设有开口向下的凹槽，该凹槽与开关的动触件间隙配合。In order to achieve the above purpose, a technical solution of the utility model is that it includes a key body, and the feature is: a groove with an opening downward is provided at the lower part of the key body, and the groove cooperates with the movable contact of the switch in a gap.

另一种技术方案是，其包括按键本体，其特征是：在按键本体的下部设有开口向下的第一凹槽和第二凹槽，第二凹槽设在第一凹槽的上方并互相连通，第一凹槽与开关的动触件间隙配合，第二凹槽的口径小于动触片从而防止动触片进入第二凹槽内。Another technical solution is that it includes a button body, which is characterized in that: a first groove and a second groove opening downward are provided at the lower part of the button body, and the second groove is arranged above the first groove and They communicate with each other, the first groove fits with the moving contact piece of the switch in clearance, and the diameter of the second groove is smaller than the moving contact piece so as to prevent the moving contact piece from entering the second groove.

上述第二凹槽设计成十字槽。The above-mentioned second groove is designed as a cross groove.

本实用新型的有益效果是：对开关按键进行有效的定位限制，防止开关按键发生偏转现象，开关按键本体所受力有角度倾斜时，避免因此造成产品不能顺利通过安全性能测试。The beneficial effects of the utility model are: effective positioning restriction on the switch key, preventing the deflection phenomenon of the switch key, and avoiding the failure of the product to pass the safety performance test when the force on the switch key body is tilted at an angle.

说明书附图Instructions attached

附图1为实施例一的结构示意图。Accompanying drawing 1 is the structural representation of embodiment one.

附图2为实施例二的结构示意图。Accompanying drawing 2 is the structural representation of embodiment two.

附图3为实施例三的结构示意图。Accompanying drawing 3 is the structural representation of embodiment three.

具体实施方式Detailed ways

下面结合具体实施方式进行详细说明。The following describes in detail in conjunction with specific implementation methods.

实施例一Embodiment one

如图1所示，按键本体1上与开关2接触端设有开口向下的凹槽3，凹槽3与开关2的动触件21有效的间隙配合。当按键本体受到角度倾斜的力时，开关的动触件21顶住凹槽3壁，阻止按键本体发生偏转。As shown in FIG. 1 , the contact end of the key body 1 and the switch 2 is provided with a groove 3 with an opening downward, and the groove 3 and the movable contact piece 21 of the switch 2 have an effective clearance fit. When the key body is subjected to an angled force, the movable contact 21 of the switch bears against the wall of the groove 3 to prevent the key body from deflecting.

实施例二Embodiment two

如图2所示，按键本体1上设有开口向下的第一凹槽3和第二凹槽4，第一凹槽3与开关2的动触件21有效的间隙配合，第二凹槽4的口径比开关动触件21小，以阻止开关动触件21的进入。当按键本体受到角度倾斜的力时，开关的动触件21顶住第一凹槽3壁，阻止按键本体发生偏转。增加第二凹槽4可以有效减小塑料件在成型过程缩水造成的不良影响。As shown in Figure 2, the key body 1 is provided with a first groove 3 and a second groove 4 with the opening downward, the first groove 3 and the movable contact 21 of the switch 2 are effectively clearance matched, and the second groove The aperture of 4 is smaller than switch movable contact 21, to stop the entry of switch movable contact 21. When the key body is subjected to an angled force, the movable contact 21 of the switch bears against the wall of the first groove 3 to prevent the key body from deflecting. Adding the second groove 4 can effectively reduce the adverse effect caused by shrinkage of the plastic part during the molding process.

实施例三Embodiment Three

如图3所示，按键本体1上与开关2接触端设有开口向下的第一凹槽3和第二凹槽4，第一凹槽3与开关2的动触件21有效的间隙配合，第二凹槽4设计成十字槽，口径比开关动触件21小，以阻止开关动触件21的进入。当按键受到角度倾斜的力时，开关2顶住第一凹槽3壁，阻止按键本体发生偏转。第一凹槽3与开关2整体的有效配合，可以使按键本体定位结构更加可靠。As shown in Figure 3, the contact end of the key body 1 and the switch 2 is provided with a first groove 3 and a second groove 4 with the opening downward, and the first groove 3 is in effective clearance fit with the movable contact 21 of the switch 2 , The second groove 4 is designed as a cross groove, and the diameter is smaller than the switch movable contact 21, so as to prevent the switch movable contact 21 from entering. When the key is subjected to an angled force, the switch 2 bears against the wall of the first groove 3 to prevent the key body from deflecting. The effective cooperation between the first groove 3 and the whole switch 2 can make the positioning structure of the key body more reliable.

Claims

1, a kind of switch key comprises keying body, it is characterized in that: be provided with the groove that Open Side Down (3) in the bottom of keying body (1), movable contact piece (21) matched in clearance of this groove and switch (2).

2, a kind of switch key, comprise keying body, it is characterized in that: be provided with first groove (3) and second groove (4) that Open Side Down in the bottom of keying body (1), second groove is located at the top of first groove and interconnects, movable contact piece (21) matched in clearance of first groove (3) and switch (2), the bore of second groove (4) less than movable contact spring (21) thus prevent that movable contact spring from entering in second groove.

3, a kind of switch key according to claim 2 is characterized in that: second groove (4) is designed to cross recess.