CN103295822A - Movable contact spring of seesaw-type trigger switch - Google Patents
Movable contact spring of seesaw-type trigger switch Download PDFInfo
- Publication number
- CN103295822A CN103295822A CN2013101898328A CN201310189832A CN103295822A CN 103295822 A CN103295822 A CN 103295822A CN 2013101898328 A CN2013101898328 A CN 2013101898328A CN 201310189832 A CN201310189832 A CN 201310189832A CN 103295822 A CN103295822 A CN 103295822A
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- movable contact
- critical
- peak
- contact spring
- trigger switch
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Abstract
The invention discloses a movable contact spring of a seesaw-type trigger switch. The movable contact spring comprises a swing mounting portion in the middle and swing arms at two ends, a movable contact is mounted on one of the swing arms, a critical heave is arranged on an ejector rod matching surface of the switch mounting portion and the seesaw-type trigger switch, a contact surface of the critical heave and an ejector rod comprises a peak and smooth tilted sections on two sides of the peak, and the peak corresponds to the swing center of the swing mounting portion in position. The movable contact spring is provided with the critical heave at the matched position of the ejector rod and can enable the movable contact and a fixed contact to instantly contact and separate, contact sparks are low, and erosion of the contacts is reduced to the great extent.
Description
Technical field
The present invention relates to a kind of movable contact spring, refer to a kind of movable contact spring of seesaw type trigger switch especially.
Background technology
In the mechanism to existing seesaw type switch, movable contact spring mostly is to be subjected to trigger equipment compressing power to move comparatively lentamente, thereby when the moving contact on movable contact spring touches fixed contact or moving contact when separating fixed contact, can not accomplish moment contact or separation, very easily produce bigger spark, the ablation contact in the life-span of influencing contactor, has a strong impact on life-span of switch.
Summary of the invention
Technical problem to be solved by this invention is: the movable contact spring that a kind of seesaw type trigger switch is provided, this movable contact spring is that the push rod cooperation place arranges a critical projection, this critical projection can effectively make dynamic and static contact to contact moment and to separate, contact sparking is very little, has largely reduced the ablation of contact.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of movable contact spring of seesaw type trigger switch, comprise the swing installation portion that is positioned at the middle part and be positioned at the two ends swing arm, in one of them swing arm moving contact is installed, the push rod mating surface of described swing installation portion and seesaw type trigger switch is provided with critical projection, the smooth tilting section that the contact-making surface of this critical projection and push rod comprises peak and lays respectively at the peak both sides, this peak position is corresponding with the oscillation center of swing installation portion.
As a kind of preferred scheme, described critical projection is circular-arc projection,, the peak of the projection that this is circular-arc is the critical localisation that push rod contacts with movable contact spring.
As a kind of preferred scheme, the relative peak of tilting section of the peak both sides of described critical projection and the connecting line symmetry between the oscillation center.
As a kind of preferred scheme, the contact-making surface of described critical projection is the crest shape.
After having adopted technique scheme, effect of the present invention is: because the push rod mating surface of described swing installation portion and seesaw type trigger switch is provided with critical projection, the smooth tilting section that the contact-making surface of this critical projection and push rod comprises peak and lays respectively at the peak both sides, this peak position is corresponding with the oscillation center of swing installation portion, therefore, when push rod moves to the swing arm of opposite side from the swing arm of a side, when push rod touches the peak of critical projection, movable contact spring is in critical localisation, when mobile, because the unexpected variation of its height, add the elastic acting force of push rod, just fast swing arm is pressed down, thereby realize separating fast or contact fast of moving contact and fixed contact, contact sparking is very little, has largely reduced the ablation of contact.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the structure cutaway view after the installation of the embodiment of the invention;
Fig. 2 is the vertical view of the embodiment of the invention;
Fig. 3 is that Fig. 2 is at the cutaway view of A-A direction;
In the accompanying drawing: 1. button; 2. push rod; 3. push rod; 4. movable contact spring; 41. swing installation portion; 42. swing arm; 43. critical projection; 431. peak; 432. smooth tilting section; 5. moving contact; 6 fixed contacts.
Embodiment
The present invention is described in further detail below by specific embodiment.
As shown in Figure 1, 2, 3, a kind of movable contact spring 4 of seesaw type trigger switch, comprise the swing installation portion 41 that is positioned at the middle part and be positioned at two ends swing arm 42, in one of them swing arm 42 moving contact 5 is installed, in Fig. 1, swing arm 42 riveted joints in left side have moving contact 5, cooperate with the fixed contact 6 of below, and lower end punch forming one contact jaw on right side, contacting with another terminal then is off-state.Described swing installation portion 41 is provided with critical protruding 43 with push rod 3 mating surfaces of seesaw type trigger switch, this critical protruding 43 smooth tilting section 432 that comprises peak 431 and lay respectively at peak 431 both sides with the contact-making surface of push rod 3, smooth tilting section can guarantee that push rod 3 operations are smooth and easy, do not have foreign matter and the sense of colliding with when promoting button 1, these peak 431 positions are corresponding with the oscillation center of swing installation portion 41.That is to say that when the push rod 3 of trigger switch was in critical localisation, peak 431 and oscillation center all were in the vertical position of Fig. 1.Wherein preferred, described critical protruding 43 is circular-arc projection,, the peak 431 of the projection that this is circular-arc is the critical localisation that push rod 3 contacts with movable contact spring 4, and the relative peak 431 of tilting section of critical protruding 43 peak 431 both sides and the connecting line symmetry between the oscillation center.Push rod 3 is very smooth and easy in critical protruding 43 operations like this, promote the good hand touch of trigger switch handle, and push rod 3 is identical at the tilting section running orbit of peak 431 both sides, and movable contact spring 4 is stressed more even.
Certainly, this critical structure of protruding 43 can also be other structures, as critical protruding 43 be quadrature crest shape, same, also can realize above-mentioned functions.And for example, can also be that this smooth tilting section 432 of critical protruding 43 is segmental arc, another smooth tilting section 432 is straightway, straightway and segmental arc smooth connection.Sum up its function, as long as when movable contact spring 4 is in critical localisation, the line of critical protruding 43 peak 431 and oscillation center is in vertical state and gets final product, and will guarantee also that certainly push rod 3 and critical protruding 43 contact-making surface are smooth, avoids and push rod 3 wearing and tearing.
Operation principle of the present invention is: this movable contact spring 4 is used for the seesaw type trigger switch, as shown in Figure 1, this seesaw type trigger switch comprises housing, is slidingly fitted with push rod 2 on the housing, push rod 2 one ends stretch out outside the housing and button 1 are installed, and are provided with the compression spring between the other end of push rod 2 and the housing.Push rod 3 then vertically is installed on push rod 2 and stretches into the interior end of housing.The swing installation portion 41 of this movable contact spring 4 is installed on the housing, in its left side swing arm 42 moving contact 5 is installed, and correspondence is equipped with static electric shock on the housing of below, and swing arm 42 belows on right side then cooperate with the open position of housing.Switch does not have external force and does the time spent (being initial condition), and push rod 2 is owing under the effect of spring, make push rod 3 press the swing arm 42 on right side to make the swing arm 42 on right side be in the open position of lower dead center.And when external force drive button 1, push rod 2 is pressed into switch inside gradually, spring is compressed gradually, push rod 2 drives push rod 3, and (left side of Fig. 1) direction moves to switch inside, push rod 3 beginnings are slided at movable contact spring 4, when push rod 3 arrived movable contact spring 4 critical protruding 43 peaks 431 positions, switch was in critical condition; When push rod 3 continues mobilely, when push rod 3 is crossed critical protruding 43 peaks 431, because the reducing suddenly of height, and under the elastic reaction of push rod 3, movable contact spring 4 will be swung immediately, the 6 moments contact of dynamic and static contact.Behind the release button 1, it is outwards mobile to promote push rod 2 under the effect of spring, when push rod 3 is crossed critical protruding 43 peak 431 positions constantly, movable contact spring 4 is swung immediately, the 6 moments separation of dynamic and static contact, and along with external force reduces gradually, spring progressively discharges elastic force, and switch is finally got back to initial condition.
Claims (4)
1. the movable contact spring of a seesaw type trigger switch, comprise the swing installation portion that is positioned at the middle part and be positioned at the two ends swing arm, in one of them swing arm moving contact is installed, it is characterized in that: the push rod mating surface of described swing installation portion and seesaw type trigger switch is provided with critical projection, the smooth tilting section that the contact-making surface of this critical projection and push rod comprises peak and lays respectively at the peak both sides, this peak position is corresponding with the oscillation center of swing installation portion.
2. the movable contact spring of a kind of seesaw type trigger switch as claimed in claim 1, it is characterized in that: described critical projection is circular-arc projection, the peak of the projection that this is circular-arc is the critical localisation that push rod contacts with movable contact spring.
3. the movable contact spring of a kind of seesaw type trigger switch as claimed in claim 2 is characterized in that: the relative peak of tilting section of the peak both sides of described critical projection and the connecting line symmetry between the oscillation center.
4. the movable contact spring of a kind of seesaw type trigger switch as claimed in claim 1, it is characterized in that: the contact-making surface of described critical projection is the crest shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101898328A CN103295822A (en) | 2013-05-21 | 2013-05-21 | Movable contact spring of seesaw-type trigger switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101898328A CN103295822A (en) | 2013-05-21 | 2013-05-21 | Movable contact spring of seesaw-type trigger switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103295822A true CN103295822A (en) | 2013-09-11 |
Family
ID=49096524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101898328A Pending CN103295822A (en) | 2013-05-21 | 2013-05-21 | Movable contact spring of seesaw-type trigger switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103295822A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507724A (en) * | 2017-09-26 | 2017-12-22 | 邓长春 | Point formula switch and its application method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794764A (en) * | 1995-06-28 | 1998-08-18 | Satori Electric Co., Ltd. | High-speed seesaw breaking switch with raised fulcrum and accelerator ramp |
| US20020134653A1 (en) * | 2001-03-21 | 2002-09-26 | Kikuyoshi Nishikawa | Switch having a seesaw type movable contact blade |
| CN103038846A (en) * | 2010-07-15 | 2013-04-10 | 富世华智诺株式会社 | Switch device |
| CN203232838U (en) * | 2013-05-21 | 2013-10-09 | 苏州华之杰电讯有限公司 | Moving contact sheet of rocker trigger switch |
-
2013
- 2013-05-21 CN CN2013101898328A patent/CN103295822A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794764A (en) * | 1995-06-28 | 1998-08-18 | Satori Electric Co., Ltd. | High-speed seesaw breaking switch with raised fulcrum and accelerator ramp |
| US20020134653A1 (en) * | 2001-03-21 | 2002-09-26 | Kikuyoshi Nishikawa | Switch having a seesaw type movable contact blade |
| CN103038846A (en) * | 2010-07-15 | 2013-04-10 | 富世华智诺株式会社 | Switch device |
| CN203232838U (en) * | 2013-05-21 | 2013-10-09 | 苏州华之杰电讯有限公司 | Moving contact sheet of rocker trigger switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107507724A (en) * | 2017-09-26 | 2017-12-22 | 邓长春 | Point formula switch and its application method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130911 |