CN221239538U - Double-spring piece snap structure - Google Patents
Double-spring piece snap structure Download PDFInfo
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- CN221239538U CN221239538U CN202322977992.0U CN202322977992U CN221239538U CN 221239538 U CN221239538 U CN 221239538U CN 202322977992 U CN202322977992 U CN 202322977992U CN 221239538 U CN221239538 U CN 221239538U
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- button
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- 230000009471 action Effects 0.000 claims abstract description 54
- 239000000463 material Substances 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 4
- 229910010293 ceramic material Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 229910000952 Be alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Push-Button Switches (AREA)
Abstract
The utility model relates to the technical field of low-voltage electrical appliance switches and discloses a double-spring-piece snap-action structure which comprises a frame, wherein a button is slidably arranged in the middle of the top end of the frame, a supporting spring piece is arranged at the inner bottom end of the button, a push rod is arranged at the bottom end of the supporting spring piece, and action spring pieces are arranged at the two ends of the supporting spring piece. In the utility model, when the button is pushed to move downwards, the supporting spring piece is driven to move downwards together, and the action spring piece cannot move downwards due to the existence of the static contact, so that the triangular structure is destroyed, and the action spring piece moves upwards instantaneously, thereby completing the snap action. The success rate of contact switching is greatly improved, the switching time is shortened, the switch can be completed in extremely short time, the contact opening distance of the switch can reach the maximum opening distance, the formation time of electric arcs among the contacts is shortened, and the service life and breaking capacity of the switch are prolonged.
Description
Technical Field
The utility model relates to the technical field of a switch of a piezoelectric device, in particular to a double-spring-piece snap-action structure.
Background
Currently, in some precision instruments and sensing devices, extremely fine and sensitive micro switches are required to achieve high precision position or displacement control. Such microswitches require extremely small displacements, typically in the millimeter or even micrometer range, and require extremely fast switching speeds, with response times within a few milliseconds.
Most of the existing micro-switches adopt a single-piece spring-driven contact bridge structure, and the contact bridge is driven to reciprocate by utilizing the elastic deformation of a spring piece, so that the contact is connected and separated. However, this structure has problems in that (1) the direction of action of the single-piece spring is single, the driving force is weak, and the contact engagement is not reliable enough. (2) The spring is easy to fatigue and lose efficacy after long-term deformation, and the service life is influenced. (3) The deformation rule of the spring is difficult to control accurately, so that the positioning of the micro displacement is difficult. (4) The action response speed is slow, and the switching time is difficult to reach millisecond level. (5) The structure is difficult to adjust, and different travel ranges are inconvenient to realize accurately. (6) The single spring structure lacks redundant design and has poor shock resistance. (7) the overall motion stability and repetition accuracy are to be improved.
Therefore, the existing single-spring-driven micro switch structure is difficult to meet the use requirements of high speed, high precision and high stability. How to improve the existing structure and realize the rapid and accurate micro displacement control is a technical problem to be solved in the field.
Disclosure of utility model
The utility model aims to solve the defects in the prior art, and provides a double-spring-piece snap structure, when a button is pushed to move downwards, a supporting spring piece is driven to move downwards together, and due to the existence of a static contact, a motion spring piece cannot move downwards, a triangular stable structure is destroyed, and the motion spring piece moves upwards instantaneously, so that snap motion is completed. The success rate of contact switching is greatly improved and the switching time is shortened.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The double-spring-piece snap structure comprises a frame, wherein a button is slidably arranged in the middle of the top end of the frame, a supporting spring piece is arranged at the inner bottom end of the button, a push rod is arranged at the bottom end of the supporting spring piece, action spring pieces are arranged at the two ends of the supporting spring piece, and movable contact pieces are arranged at one ends of the two action spring pieces;
Through the technical scheme, when the button is pushed to move downwards, the supporting spring piece is driven to move downwards together, and due to the existence of the static contact, the action spring piece cannot move downwards, the triangular stable structure is destroyed, and the action spring piece moves upwards instantaneously, so that the snap action is completed. The success rate of contact switching is greatly improved, the switching time is shortened, the switch can be completed in extremely short time, the contact opening distance of the switch can reach the maximum opening distance, the section time of electric arcs among the contacts is shortened, and the service life and breaking capacity of the switch are prolonged.
Further, a second movable groove is formed in the middle of the top end of the frame;
through above-mentioned technical scheme, thereby through seting up the second movable slot in the top middle part of frame, make things convenient for the removal of button.
Further, a first movable groove is formed in the bottom end of the second movable groove;
Through above-mentioned technical scheme, thereby make things convenient for the spring leaf to carry out the snap action through seting up first movable groove in the bottom of second movable groove.
Further, a connecting sheet is arranged between the two movable contact sheets in a connecting way;
Through above-mentioned technical scheme, thereby it is convenient to connect two movable contact pieces to connect being provided with the connection piece between two movable contact pieces.
Further, the thickness of the two action spring pieces is 0.5mm;
Through the technical scheme, the thickness of the two action spring pieces is designed to be 0.5mm, so that the contact area between the two action spring pieces and the support spring piece can be reduced, the movable contact piece can be rapidly switched, the action of the switch is completed, and the snap action is realized.
Further, the button is made of ceramic materials;
Through the technical scheme, the button is made of ceramic materials and can better resist abrasion and deformation during pressing.
The utility model has the following beneficial effects:
1. According to the double-spring-piece snap structure provided by the utility model, when the button is pushed to move downwards, the supporting spring pieces are driven to move downwards together, the action spring pieces cannot move downwards due to the existence of the static contact, the triangular structure is destroyed, and the action spring pieces act upwards instantaneously, so that snap action is completed. The success rate of contact switching is greatly improved, the switching time is shortened, the switch can be completed in extremely short time, the contact opening distance of the switch can reach the maximum opening distance, the formation time of electric arcs among the contacts is shortened, and the service life and breaking capacity of the switch are prolonged.
2. According to the double-spring-piece snap structure provided by the utility model, the thickness of the two action spring pieces is designed to be 0.5mm, so that the contact area between the two action spring pieces and the support spring piece can be reduced, the movable contact pieces can be rapidly switched, the action of a switch is completed, and the snap action is realized.
Drawings
FIG. 1 is a diagram showing the original state of a dual spring snap structure in a micro switch according to the present utility model;
FIG. 2 is a diagram showing the operation state of the dual spring snap structure in the micro switch according to the present utility model;
FIG. 3 is a partial cross-sectional view of a dual leaf snap structure according to the present utility model;
fig. 4 is an original state diagram of the dual spring snap structure according to the present utility model when not installed.
Legend description:
1. a frame; 2. a button; 3. a support spring piece; 4. a push rod; 5. a motion spring piece; 6. a movable contact; 7. a connecting sheet; 8. a first movable groove; 9. and a second movable groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a two spring leaf snap action structure, including frame 1, the top middle part of frame 1 slides and is provided with button 2, the inner bottom of button 2 is provided with supports spring leaf 3, the bottom of supporting spring leaf 3 is provided with push rod 4, the both ends of supporting spring leaf 3 are provided with action spring leaf 5, the one end of two action spring leaves 5 all is provided with movable contact 6, when the button receives thrust down motion, drive and support the spring leaf together down, and because the existence of stationary contact, action spring leaf can't move down, the triangular structure is destroyed, action spring leaf upwards moves in the twinkling of an eye, thereby accomplish snap action. The success rate of contact switching is greatly improved, the switching time is shortened, the switch can be completed in extremely short time, the contact opening distance of the switch can reach the maximum opening distance, the section time of electric arcs among the contacts is shortened, and the service life and breaking capacity of the switch are prolonged.
The second movable groove 9 has been seted up at the top middle part of frame 1, thereby make things convenient for the removal of button through having seted up the second movable groove at the top middle part of frame, first movable groove 8 has been seted up to the bottom of second movable groove 9, thereby make things convenient for the spring leaf to carry out the snap action through having seted up the bottom of second movable groove, the connection is provided with connection piece 7 between two movable contact pieces 6, thereby it is convenient to connect two movable contact pieces to connect being provided with the connection piece between two movable contact pieces, the thickness of two movable contact pieces 5 is 0.5mm, thereby design the thickness of two movable contact pieces to be 0.5mm can reduce the area of contact with the support spring piece so that the movable contact piece switches rapidly, accomplish the action of switch, realize the snap action, button 2 adopts the resin material to make, wearing and tearing and deformation when the button adopts the resin material to make resistance pressing that can be better.
Working principle: firstly, the push button 2 is pushed to move downwards by pushing the push button 2, so that the supporting spring piece 3 is driven to move downwards together, the action spring piece 5 cannot move downwards due to the existence of the static contact, the triangular structure is destroyed, the action spring piece 5 moves upwards instantaneously, meanwhile, the movable contact piece 6 is switched rapidly due to the spring force generated by deformation, the action of a switch is completed, and the snap action is realized.
Example 1
Referring to fig. 1-4, the dual-spring-piece snap structure provided by the utility model comprises a frame 1, wherein a button 2 is slidably arranged in the middle of the top end of the frame 1, a supporting spring piece 3 is arranged at the inner bottom end of the button 2, a push rod 4 is arranged at the bottom end of the supporting spring piece 3, action spring pieces 5 are arranged at two ends of the supporting spring piece 3, and movable contact pieces 6 are arranged at one ends of the two action spring pieces 5. When the push button 2 is pushed downwards, the push button 2 drives the supporting spring piece 3 to move downwards, at the moment, the lower end of the action spring piece 5 is abutted against the fixed part, and the push button 2 and the supporting spring piece 3 cannot move downwards, so that the action spring piece 5 is bent and deformed, and when the elastic range of the action spring piece 5 is exceeded, the action spring piece 5 is sprung upwards to restore, the movable contact piece 6 is driven to move upwards, and the instantaneous contact switching action is completed.
Through the structural design, when the button 2 is pressed, the action spring piece 5 undergoes bending deformation to accumulate elastic energy, and then the elastic energy is released instantaneously to drive the movable contact piece 6 to spring, so that millisecond-level high-speed contact switching can be realized. Compared with a single-piece spring structure, the structure has larger driving force, more reliable contact joint and higher switching speed. Meanwhile, due to the double-spring redundancy design, the shock resistance is better. The geometric dimension of the spring piece is accurately designed, and the tiny contact switching stroke can be accurately controlled.
In order to realize the spring space of the spring piece 5, a second movable groove 9 is arranged in the middle of the top end of the frame 1, and the button 2 moves in the second movable groove; the bottom of the second movable groove 9 is provided with a first movable groove 8, and the snap motion of the spring piece 5 occurs in the first movable groove 8. The two movable contact pieces 6 are connected and fixed through a connecting piece 7. The thickness of the optimally designed spring piece 5 is set to be 0.5mm in the embodiment, so that the contact area between the spring and the button 2 can be reduced, the friction resistance is reduced, and the response speed of the spring is improved. The button 2 is made of high-hardness ceramic material, and abrasion resistance during pressing is improved.
Through the structural design, the high-speed, accurate and stable micro-displacement contact switching is realized, the requirement on the performance of the quick snap switch is met, and the method can be widely applied to fine control scenes of precise instruments and sensing equipment.
Second embodiment:
on the basis of the first embodiment, the following modifications are made:
1) The material of the action spring piece 5 is optimally designed, and beryllium alloy copper is adopted to replace the common steel plate in the first embodiment. The beryllium alloy copper has the characteristics of high strength and good elasticity, and is longer in service life and more accurate and reliable in action.
2) And processing the surface of the spring, and adopting surface nitriding strengthening treatment. The surface hardness of the spring subjected to nitriding treatment is obviously improved, the wear resistance is improved, and the durability of the spring is improved.
3) The structural design of the movable contact piece 6 is improved, and an auxiliary spring piece is added at the joint of the movable contact piece 6 and the connecting piece 7 to form a spring pre-pressing structure. The design can provide extra reset force, so that the movable contact 6 can be quickly and completely restored to the initial state after each action period, and the action stability and the service life are improved.
4) The noble metal material with high conductivity is used for replacing a common electric contact sheet in the active contact sheet 6, so that the contact resistance between contacts is reduced, and the conductive effect is improved.
5) And a limiting mechanism is additionally arranged, and the position of the limiting component is precisely adjusted, so that the pressing stroke of the button 2 is precisely controlled, and the switching range of the contact is precisely defined.
Compared with the first embodiment, the double-spring-piece snap switch of the second embodiment has the characteristics of quicker and more accurate action, better durability, higher stability and better conductivity, can realize extremely accurate control of tiny displacement, remarkably improves performance indexes, and expands the application range of the structure in occasions with high parameter requirements.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a two spring leaf snap structure, includes frame (1), its characterized in that: the novel electric power switch is characterized in that a button (2) is slidably arranged in the middle of the top end of the frame (1), a supporting spring piece (3) is arranged at the inner bottom end of the button (2), a push rod (4) is arranged at the bottom end of the supporting spring piece (3), action spring pieces (5) are arranged at the two ends of the supporting spring piece (3), and movable contact pieces (6) are arranged at one ends of the action spring pieces (5).
2. The double leaf snap structure of claim 1 wherein: the middle part of the top end of the frame (1) is provided with a second movable groove (9).
3. A double leaf snap action structure according to claim 2, wherein: the bottom end of the second movable groove (9) is provided with a first movable groove (8).
4. The double leaf snap structure of claim 1 wherein: a connecting sheet (7) is connected between the two movable contact sheets (6).
5. The double leaf snap structure of claim 1 wherein: the thickness of the two action spring pieces (5) is 3mm.
6. The double leaf snap structure of claim 1 wherein: the button (2) is made of resin material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322977992.0U CN221239538U (en) | 2023-11-05 | 2023-11-05 | Double-spring piece snap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322977992.0U CN221239538U (en) | 2023-11-05 | 2023-11-05 | Double-spring piece snap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221239538U true CN221239538U (en) | 2024-06-28 |
Family
ID=91598462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322977992.0U Active CN221239538U (en) | 2023-11-05 | 2023-11-05 | Double-spring piece snap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221239538U (en) |
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2023
- 2023-11-05 CN CN202322977992.0U patent/CN221239538U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |