CN100407355C - Circuit-controllable protector - Google Patents
Circuit-controllable protector Download PDFInfo
- Publication number
- CN100407355C CN100407355C CN2005100828639A CN200510082863A CN100407355C CN 100407355 C CN100407355 C CN 100407355C CN 2005100828639 A CN2005100828639 A CN 2005100828639A CN 200510082863 A CN200510082863 A CN 200510082863A CN 100407355 C CN100407355 C CN 100407355C
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- CN
- China
- Prior art keywords
- contact
- piece
- button
- contact piece
- elastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001012 protector Effects 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
A circuit controlling protector, it is: the button moving pivot connects with the opening of the box, the one end of the button extends downward to gore the one end of the touching slice, sets the ejection at the other end inner edge of the button, the ejection gores the other end of the touching slice; the extending end of the button drives the one end of the touching slice by swinging of the button, or the ejection on other end of the button gores the other end of the touching slice, the touching slice jumps up and down, forms (on) state or (off) state of the circuit loop; the button does not gore and limit the other end of the touching slice when the button is located at the (on) position, the touching slice can jump freely, and the touching slice reverse bounce by the heating distortion when the current overloads, forms (off) state of the circuit loop.
Description
Technical Field
The invention relates to a circuit-controlled protector structure, which is characterized in that a button swings at a pivot joint, and the left end and the right end of the button respectively push against two ends of a contact piece, so that the two ends of the contact piece jump up and down to form a power-ON (ON) state or a power-OFF (OFF) state of a circuit loop; when the button is located at the position of circuit conduction (ON), the button does not abut against and limit the contact piece, so that the contact piece can freely jump OFF, and when the current is overloaded, the contact piece is heated and deformed to reversely bounce, so that the power-OFF (OFF) of the circuit loop is formed.
Background
Various common switch structures are various and numerous, and the operation of the switch structure of the power supply mainly lies in two actuating strokes of power-ON (ON) and power-OFF (OFF), so that the linkage relation among the key, the linkage component and the elastic contact piece plays a decisive key ON the use quality and the service life of the switch structure; in order to further prevent the power utilization danger of circuit overheating and wire fire caused by circuit current overload, various switches with current overload trip structures are available on the market.
In general, the known switches have the following disadvantages:
(a) the components inside the switch have complex structure, time-consuming assembly, unclean actuation stroke and increased manufacturing cost.
(b) The linkage components are not properly arranged with each other, so that the bending bounce of the elastic contact piece can not be positioned at one side, and the switch can not be operated reliably when power ON (ON) or power OFF (OFF) is performed.
(c) When the current overload trips, the elastic contact piece cannot trip reliably and is positioned at the power-OFF (OFF) position, and when the elastic contact piece is cooled, the elastic contact piece may trip back to the power-ON (ON) state, so that the power utilization safety of the current overload state cannot be effectively guaranteed.
(d) After the current overload trip, the direct linkage cannot be realized, so that the key or the button is reset to the power-OFF position, and the identification and the operation of a user are inconvenient.
Disclosure of Invention
The invention aims to solve the defects of the known switch, simplify the linkage component of the switch, achieve the actions of power-OFF (OFF) and power-ON (ON) by a simpler and more effective linkage structure, ensure the power-OFF (OFF) state of the circuit when the current overload trips, and enable the key or the button to return to the power-OFF (OFF) position.
The invention provides a circuit control protector, which is movably pivoted with an opening of a box body by a button, wherein one end of the button extends downwards to abut against one end of a contact piece, and the other end of the button is internally provided with an ejecting piece in an extending way, and the ejecting piece abuts against the other end of the contact piece; by pressing the button to swing, one end of the button extending pushes one end of the contact piece, or the ejector piece at the other end of the button pushes the other end of the contact piece, so that the two ends of the contact piece jump up and down to form a power-ON (ON) or power-OFF (OFF) state of a circuit loop; when the button is located at the position of circuit conduction (ON), the end part of the ejector of the button correspondingly points to the through hole arranged ON the contact piece, so that the button does not abut against and limit the contact piece, the contact piece can jump freely, and when the current is overloaded, the contact piece is heated to deform and bounce reversely to form the power-OFF (OFF) of a circuit loop.
The circuit control protector provided by the invention has the main purpose that a pivoted button swings, one end of the button pushes against one end of a contact piece, or a pushing piece at the other end of the button pushes against the other end of the contact piece, so that the two ends of the contact piece are directly pushed to jump up and down to form a power-ON (ON) or power-OFF (OFF) state of a circuit loop; when the button is located at the position of circuit conduction (ON), the button does not abut against and limit the contact piece, so that the contact piece can jump freely, and when the current is overloaded, the contact piece is heated to deform and bounce reversely to form the power-OFF (OFF) of a circuit loop, thereby achieving the purpose of electricity safety.
The second purpose of the invention is to directly push the two ends of the button against the two ends of the contact piece to directly control the bounce of the contact piece to form circuit conduction (ON) or circuit disconnection (OFF), thereby effectively simplifying the linkage component of the power control switch, leading the linkage of the switch to be more direct and rapid, reducing the delay problem of the linkage time course of the component and reducing the faults of the power control switch.
The invention also aims to achieve the effects that when the circuit is overheated, the contact elastic sheet is deformed by heat to be reversely bent and quickly tripped and is in a complete tripping power-off state, the contact elastic sheet is prevented from being tripped back to a power-on state when being cooled, and the danger caused by the contact spark formed by continuous repeated power-on and power-off is avoided.
The present invention is directed to simplify the components of the power control switch, which are linked together, and the assembly is easy, so as to effectively reduce the manufacturing cost, prolong the service life of the power control switch structure, and reduce the expenditure of consumers.
Drawings
FIG. 1 is a combined cross-sectional view of an embodiment of the present invention, showing a power-OFF (OFF) state of the embodiment of the present invention;
FIG. 2 is a combined cross-sectional view of an embodiment of the present invention, showing the energized (ON) state of the embodiment of the present invention;
fig. 3 is a partially enlarged view of fig. 2, showing a state in which the end pin 221 of the ejector 22 of the push button 2 is movably inserted into the through hole 320 of the elastic member 32 of the contact piece 3;
FIG. 4 is a combined cross-sectional view of the embodiment of the present invention showing the contact piece and the contact portion being bent and tripped in opposite directions to be in an OFF state when the embodiment of the present invention is applied with an electric current (ON) and an electric current is overloaded;
fig. 5 is a partially enlarged view of fig. 4, which shows a state in which the through hole 320 of the elastic member 32 of the contact piece 3 and the end rod 221 of the ejector 22 of the push button 2 are relatively displaced when a current is overloaded;
fig. 6 is an exploded perspective view of an embodiment of the present invention.
In the drawings
1 case body
11 first contact terminal
12 second contact terminal
121 second contact
2 push button
21 convex part
22 ejector member
211 end rod
3 contact sheet
31 contact part
311 first contact
312 Tab
313 convex sheet
32 elastic member
320 perforation
321 first fastening hole
322 second fastening hole
Detailed Description
To illustrate the objects, features and effects of the present invention in detail, the present invention will now be described in detail by the following preferred embodiments thereof, with reference to the accompanying drawings, wherein:
as shown in fig. 1, 2 and 4, which are combined cross-sectional views of the embodiment of the present invention, respectively show the power-OFF (OFF), power-ON (ON) and the state of the contact piece reversely bending and jumping to power-OFF (OFF) when the current is overloaded according to the embodiment of the present invention; the invention relates to a circuit control protector (ten), which mainly comprises a box body 1, a button 2 and a contact piece 3; wherein,
the case 1 is hollow, and has an opening on the top, at least two contact terminals, in this embodiment, two contact terminals, i.e. a first contact terminal 11 and a second contact terminal 12, are disposed on the bottom of the case 1, one end of the combined contact piece 3 is fixed on the bent portion above the first contact terminal 11, and a second contact point 121 is combined on the second contact terminal 12.
The button 2 is a cap-shaped body, the button 2 is movably pivoted to an opening above the box body 1, so that the button 2 can swing by taking the pivoting part as an axis; one end (left end) of the button 2 extends downwards to form a convex part 21, the other end (right end) of the button 2 is provided with an ejection part 22 in an extending way, the end part of the ejection part 22 is connected and provided with an end rod 221, the outer diameter of the end rod 221 is smaller than the outer diameter of the ejection part 22, and the end rod 221 is a conical body with an arc end part and a gradually reduced outer diameter.
The contact piece 3 is a metal sheet with elasticity, it is formed into curved arc shape, the contact piece 3 can jump to the two sides; one end of the contact piece 3 is fixedly combined on the first contact terminal 11 of the box body 1, and the other end of the contact piece 3 is a free end; the contact piece 3 is provided with a U-shaped groove to form a contact part 31 at the central part, one end of the contact part 31 is connected with one side close to the free end of the contact piece 3, the contact part 31 is provided with a first contact 311 in a combined way, and the free end of the contact part 31 protrudes out of the plane of the contact piece 3; referring to fig. 6, the free end of the contact portion 31 is provided with a tab 312, the tab 312 is movably fastened in a first fastening hole 321 at the end of the elastic member 32, the elastic member 32 is a curved sheet, a through hole 320 is provided at the right side of the curved top surface of the elastic member 32, the other end of the elastic member 32 is provided with a second fastening hole 322, and the second fastening hole 322 is movably fastened in a protruding piece 313 in the n-shaped slot of the sheet of the contact sheet 3; the free end of the contact portion 31 is pushed to bend and jump upwards or downwards by the elastic force generated by the compression of the two ends of the elastic piece 32, and when the free end of the contact piece 3 bends and jumps downwards, the free end of the contact portion 31 bends and jumps upwards in reverse direction, and when the free end of the contact piece 3 bends and jumps upwards, the free end of the contact portion 31 bends and jumps downwards in reverse direction, namely, the free end of the contact piece 3 and the free end of the contact portion 31 keep a state of reverse bending and jumping mutually, and in addition, the contact portion 31 is reliably bent and positioned on the reverse arc side surface of the contact piece 3 by the elastic force of the elastic piece 32 buckled with the free end of the contact portion 31.
In the combined implementation, the protrusion 21 extending from one end of the button 2 abuts against one end (free end) of the contact piece 3, and the end rod 221 of the ejector 22 at the other end of the button 2 abuts against the curved top surface of the elastic piece 32 buckled with the contact portion 31 of the contact piece 3.
The invention is implemented in general power-ON (ON) and power-OFF (OFF); referring to fig. 1, when the left end of the push button 2 is pressed downward, the protrusion 21 extending from the left end of the push button 2 pushes the free end of the contact 3 downward to bounce downward, so that the free end of the contact portion 31 of the contact 3 bounces upward and backward, and the first contact 311 on the contact portion 31 is separated from the second contact 121 of the second contact terminal 12, resulting in an OFF (OFF) state.
When the right end of the push button 2 is pressed downwards, the end rod 221 at the end of the ejector 22 pushes the curved top surface of the elastic piece 32 buckled with the contact part 31 of the contact piece 3 downwards, so that the elastic piece 32 rotates anticlockwise (leftwards) with the right end as an axis to move leftwards and downwards, the left end of the elastic piece 32 is linked with the free end of the contact part 31 of the contact piece 3 to displace and bounce downwards, and the first contact 311 ON the contact part 31 is contacted with the second contact 121 of the second contact terminal 12 to be in an electrified (ON) state, as shown in fig. 2; at this time, the free end of the contact piece 3 bounces upward in the opposite direction to the free end of the contact portion 31 bounces downward.
As described above, by repeatedly pressing the left and right ends of the push button 2, the protrusion 21 extending from one end of the push button 2 and the end rod 221 at the end of the ejector 22 at the other end respectively abut against and push the elastic member 32 engaging the free end of the contact 3 with the contact portion 31 of the contact 3, so that the free end of the contact portion 31 of the contact 3 jumps up and down, the first contact 31 of the contact portion 31 and the second contact 121 of the second contact 12 are separated from and brought into contact with each other, and an OFF (OFF) state or an ON (ON) state of the circuit loop is formed.
When the push button 2 is located at the position of conducting (ON) the circuit, as shown in fig. 2, referring to the enlarged partial view of fig. 3, the outer diameter of the end rod 221 of the ejector 22 at the right end of the push button 2 is smaller than the inner diameter of the through hole 320 of the elastic member 32 of the contact piece 3, and the front end of the end rod 221 of the ejector 22 is partially inserted into the through hole 320 at the right side of the curved top surface of the elastic member 32, and the through hole 320 and the end of the ejector 22 of the push button 2 (i.e., the connection between the end rod 221 and the ejector 22) maintain a distance that provides a free displacement space for the elastic member 32 of the contact piece 3 to move upwards and rightwards, referring to the enlarged partial view of fig. 5, therefore, the end rod 221 of the ejector 22 does not push and limit the free displacement of the elastic member 32 of the contact piece 3 upwards and the contact piece 22 to move rightwards, when the current is overloaded, the contact piece 3 and the contact piece 31 are deformed by, The free end of the contact portion 31 bounces upward, so that the first contact 311 on the contact portion 31 and the second contact 121 on the second contact terminal 12 are separated, and a power-OFF (OFF) state of the circuit loop is formed, as shown in fig. 4.
At this time, the user can press the left end of the button 2 downward, the right end of the button 2 and the ejector 22 move upward, so that the end rod 221 of the ejector 22 moves upward away from the through hole 320 of the elastic member 32 of the contact piece 3, the end rod 221 of the ejector 22 contacts and abuts against the curved top surface of the contact portion 31 of the contact piece 3, and the re-use state of normal power-OFF (OFF) is restored, as shown in fig. 1.
While the present invention has been described in detail, the foregoing is merely illustrative of the presently preferred embodiments of the invention and is not to be construed as limiting the scope of the invention. All equivalent changes and modifications made according to the scope of the present invention should also be covered by the scope of the present invention.
Claims (6)
1. A circuit control protector comprises a box body, a button, a contact piece and a linkage rod piece; wherein,
the box body is hollow, an opening is arranged above the box body, and the bottom surface of the box body is provided with at least two contact terminals;
the button is movably pivoted to the opening above the box body, and the button swings by taking the pivoting part as an axis: one end of the button extends downwards, a pushing piece extends inwards from the other end of the button, and an end rod is connected and arranged at the end part of the pushing piece;
the contact piece is an elastic metal piece body and can jump to the two side surfaces of the contact piece body; one end of the contact piece is fixedly combined on a contact terminal of the box body, and the other end of the contact piece is a free end; the contact piece body is provided with a contact part, one end of the contact part is connected with the contact piece, the contact part is combined with a first contact, the free end of the contact part protrudes out of the plane of the contact piece body, the free end of the contact part is movably buckled at the end part of an elastic piece, the top surface of the elastic piece is provided with a through hole, and the other end of the elastic piece is movably buckled at the contact piece body; pushing the free end of the contact part to bend upwards or downwards to bounce by the elastic force of the elastic piece, keeping the free end of the contact piece and the free end of the contact part in a state of reverse bending bounce, and respectively deforming and reversely bending and bouncing towards the other side surface when the contact piece and the contact part are heated;
when the button is combined, one end of the button extending abuts against the free end of the contact piece, and the end rod of the ejector piece at the other end of the button abuts against the top surface of the elastic piece buckled with the contact part of the contact piece;
repeatedly pressing the left end and the right end of the button to swing, so that the extending end of the button and the end rod of the ejector at the other end respectively abut against and push the free end of the contact piece and the top surface of the elastic piece of the contact piece, and the free end of the contact part of the contact piece jumps up and down to form a power-off or power-on state of a circuit loop;
when the button is located at the position where the circuit is conducted, the end rod of the ejector of the button is movably embedded into the through hole of the elastic piece buckled with the contact part of the contact piece, a distance is reserved between the through hole and the end rod of the ejector of the button, the distance provides a free displacement space of the elastic piece of the contact piece upwards and rightwards, the end rod of the ejector cannot abut against and limit the free displacement of the elastic piece of the contact piece, and when the current is overloaded, the contact piece and the contact part are deformed by heat and reversely bent and bounced to form the power-off of the circuit loop.
2. The circuit control protector according to claim 1, wherein the case has at least two contact terminals, which are a first contact terminal and a second contact terminal, respectively, the first contact terminal has a bent portion for fixedly assembling one end of the contact piece, and the second contact terminal has a second contact point coupled thereto.
3. The circuit control protector of claim 1,
the outer diameter of an end rod of an ejector of the button is smaller than that of the ejector, and the end rod is a conical body with an arc end part and a gradually reduced outer diameter;
the inner diameter of a through hole arranged on the elastic piece buckled with the contact part of the contact piece is larger than the outer diameter of the end rod of the ejector piece of the button.
4. The circuit control protector of claim 1, wherein the contact pad is a composite metal foil.
5. The circuit control protector according to claim 1, wherein the free end of the contact portion has a protruding piece movably fastened in a first fastening hole at an end of the elastic member, and the other end of the elastic member has a second fastening hole movably fastened in a protruding piece in the slot of the contact piece body.
6. The circuit control protector according to claim 1, wherein the resilient member is an arcuate plate that is engaged by the contact portion of the contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100828639A CN100407355C (en) | 2005-07-11 | 2005-07-11 | Circuit-controllable protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100828639A CN100407355C (en) | 2005-07-11 | 2005-07-11 | Circuit-controllable protector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1897201A CN1897201A (en) | 2007-01-17 |
| CN100407355C true CN100407355C (en) | 2008-07-30 |
Family
ID=37609674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100828639A Expired - Fee Related CN100407355C (en) | 2005-07-11 | 2005-07-11 | Circuit-controllable protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100407355C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262748A (en) * | 1992-01-13 | 1993-11-16 | Tsung Mou Yu | Fuseless breaking switch |
| US5760672A (en) * | 1997-05-02 | 1998-06-02 | Wang; Ming-Shan | Safety switch built-in with protecting circuit |
| CN2510988Y (en) * | 2001-12-14 | 2002-09-11 | 乔日电业股份有限公司 | Short-circuit-proof press-button switch |
-
2005
- 2005-07-11 CN CN2005100828639A patent/CN100407355C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5262748A (en) * | 1992-01-13 | 1993-11-16 | Tsung Mou Yu | Fuseless breaking switch |
| US5760672A (en) * | 1997-05-02 | 1998-06-02 | Wang; Ming-Shan | Safety switch built-in with protecting circuit |
| CN2510988Y (en) * | 2001-12-14 | 2002-09-11 | 乔日电业股份有限公司 | Short-circuit-proof press-button switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1897201A (en) | 2007-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 Termination date: 20120711 |