CN2713617Y - Double-function security protection switch - Google Patents
Double-function security protection switch Download PDFInfo
- Publication number
- CN2713617Y CN2713617Y CN 200420072332 CN200420072332U CN2713617Y CN 2713617 Y CN2713617 Y CN 2713617Y CN 200420072332 CN200420072332 CN 200420072332 CN 200420072332 U CN200420072332 U CN 200420072332U CN 2713617 Y CN2713617 Y CN 2713617Y
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- CN
- China
- Prior art keywords
- movable contact
- contact piece
- static contact
- contact spring
- protection switch
- 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
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Abstract
The utility model belongs to the field of the switching technique of the daily-use electrical appliances which solves the problem that the electric appliance apparatus are realized by respective functional switches in the protection of overheating and dumping and the cost is a little high. A double-function security protection switch contains a fixed contact piece 4 and a movable contact piece 5 fixed on a body 1 in a suppress contact way, the fixed contact piece 4 is provided with a through hole 6, and the through hole 6 is provided with a suspended weight 8 and a shaking suspension rod 7. An end 9 of the suspension rod 7 is arranged on the through hole 6 which is between the fixed contact piece 4 and the movable contact piece 5 and keeps isolating with the movable contact piece 5. When the flat surface of the fixed contact piece 4 inclines, the end 9 can contact with the movable contact piece 5 which inclines with the fixed contact piece 4, and the movable contact piece 5 is separated with the fixed contact piece 4. A temperature sensing bimetallic strip 10 which is electrically isolated is arranged between the fixed contact piece 4 and the movable contact piece 5, and the temperature sensing bimetallic strip 10 can make the movable contact piece 5 raising change to separate with the fixed contact piece 4 after it is heated to raising change. The movable contact piece is pushed to separate with the fixed contact piece by the end when pouring. The temperature sensing bimetallic strip is kicked to separate with the movable contact piece and the fixed contact piece when overheating.
Description
Technical field
The utility model belongs to household appliance switching technique field.
Background technology
At present, some the household appliance utensil on the market, for example electric fan, electric heater etc. all are provided with safety precautions, and such as overtemperature protection, accident is toppled over protection.Overtemperature protection generally is to adopt the Fuse Type thermal protector, or the Kick type thermal protector; And accident to topple over protection generally be to adopt the contact safety switch, when electrical equipment utensil normal upright, safety switch is in contact condition; And when electrical equipment utensil accident was toppled over, safety switch was then cut off the electricity supply, and the electrical equipment utensil is quit work, and prevented accident.
The weak point of above-mentioned safety protection switch is, overtemperature protection and unexpectedly topple over protection and realize that with having separately the switch of function promptly need two switches, cost is higher respectively.
Summary of the invention
The purpose of this utility model provides a kind of overtemperature protection and unexpected safety protection switch of toppling over the protection dual-use function.
For realizing the purpose of this utility model; described difunctional safety protection switch comprises the static contact that is fixed on the body and suppresses contact; movable contact spring; described static contact is provided with through hole; in through hole, be provided with the suspension rod of band sash weight; the end of suspension rod be held on the through hole and static contact and movable contact spring between; keep isolating with movable contact spring; when the plane inclination of static contact; the movable contact spring that tilts with static contact can be touched in end (because of suspension rod keeps vertical horizontal); movable contact spring is separated with static contact; be installed with the temperature-sensitive bimetal leaf between static contact and movable contact spring, the temperature-sensitive bimetal leaf can make after sticking up change movable contact spring stick up to become and separates with static contact being heated.
Static contact, movable contact spring, temperature-sensitive bimetal leaf constitute the hot protection mechanism of Kick type, stick up when becoming when the temperature-sensitive bimetal leaf is heated, and will drive the movable contact spring perk and separate with static contact, cut off circuit, the realization overtemperature protection.Static contact, movable contact spring, sash weight, suspension rod, end constitute unequal protection mechanism; when run-off the straight; sash weight, suspension rod, end keep or attitude close to the vertical shape under the effect of sash weight gravity; static contact, movable contact spring then opposed end are inclined; the end then withstands on the movable contact spring; movable contact spring is separated with static contact, cut off circuit, realize unequal protection.
Description of drawings
The drawing of accompanying drawing is described as follows:
Fig. 1 is the structure chart of the safety protection switch of the utility model dual-use function.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the state diagram when body tilts among Fig. 2.
Below in conjunction with accompanying drawing, the specific embodiment of the difunctional safety protection switch of the utility model is described in further detail:
As shown in FIG., the difunctional safety protection switch of the utility model comprises body 1, static contact 4, movable contact spring 5, through hole 6, sash weight 8, suspension rod 7, end 9, temperature-sensitive bimetal leaf 10, insulating part 12, electric connection terminal 2,3, insulating washer 15, bolt 16.
Between static contact 4 and movable contact spring 5, be installed with the temperature-sensitive bimetal leaf 10 that electricity is isolated, if temperature-sensitive bimetal leaf 10 be heated stick up change after, it sticks up and becomes part and can act on the movable contact spring 5, movable contact spring 5 is stuck up become and separates with static contact 4.The temperature-sensitive bimetal leaf 10 of this moment can be arranged on the static contact 4, also can be arranged on the movable contact spring 5, can also be arranged on the body 1, owing to itself can conduct electricity, as long as, avoid causing that short circuit gets final product so itself and static contact 4 and movable contact spring 5 any one electricity are isolated.
Described temperature-sensitive bimetal leaf 10 1 ends of present embodiment are arranged on the movable contact spring 5, are provided with the insulating part 12 that prevents that electricity from connecting between the other end and the static contact 4.
Described movable contact spring 5 is provided with the bayonet socket 13 that the end that can make temperature-sensitive bimetal leaf 10 is inserted, this bayonet socket 13 if on the copper sheet of making movable contact spring 5 trip of punching press.Described temperature-sensitive bimetal leaf 10 is provided with the hole clipping 14 that the insulating part 12 that is fixed on the static contact 4 is inserted.Temperature-sensitive bimetal leaf 10 1 ends are clamped in bayonet socket 13, and the other end is enclosed within insulating part 12 by hole clipping 14, thereby are fixed between movable contact spring 5 and the static contact 4 with slip-off preventing.Be provided with the insulating part 12 that prevents that electricity from connecting between described temperature-sensitive bimetal leaf 10 and static contact 4 or the movable contact spring 5, this insulating part 12 comprises the insulated part of any isolation between temperature-sensitive bimetal leaf 10 and static contact 4 or the movable contact spring 5.
Described temperature-sensitive bimetal leaf 10 1 ends abut on the movable contact spring 5, and the other end suppresses on the insulating part 12 that is fixed on the static contact 4, and this insulating part 12 is a column structure, is embedded in the fixing hole on the static contact 4.When temperature-sensitive bimetal leaf 10 is heated and two ends make progress the middle part when becoming to having a downwarp, the one end then forces other end jack-up movable contact spring 5 owing to only be butted on and can't stick up change on the insulating part 12, and movable contact spring 5 is separated with static contact 4, realizes overtemperature protection.
Described static contact 4, movable contact spring 5 are provided with the electric connection terminal 2,3 that is connected with power supply, are convenient to connect with the mains to static contact 4, movable contact spring 5.The described body 1 of present embodiment has three insulating washers 15 with movable contact spring 5 and static contact 4 isolation clampings, and insulating washer 15 is by bolt 16 affixed being integral.Bolt 16 can be gone here and there a support 19 and was fixed together with insulating washer 15, formed a body 1 that has support 19.Described insulating washer 15 is provided with and can makes projecting ring section 17 that static contact 4, movable contact spring 5, electric connection terminal 2,3 and bolt 16 isolate and concave part 18 that can ccontaining projecting ring section 17.As on the insulating washer 15 of centre, being provided with projecting ring section and concave part, the corresponding projecting ring section that is provided with the concave part of ccontaining described projecting ring section and falls into described concave part on the insulating washer of both sides, static contact 4, movable contact spring 5, electric connection terminal 2,3 are provided with the fixing hole that is inserted in projecting ring section.Projecting ring section makes has kept apart between static contact 4, movable contact spring 5, electric connection terminal 2,3 and the bolt 16, and insulating washer 15 then makes static contact 4, electric connection terminal 2 keep apart with movable contact spring 5, electric connection terminal 3, and is easy to assembly.
During use; the support 19 of difunctional safety protection switch is fixed on the electric equipment products; when electrical equipment utensil accident was toppled over, sash weight was because of action of gravity, suspension rod is lost and static contact between vertical relation; form deflection; simultaneously the cheese end, garden of suspension rod top and static contact shape in an angle, thereby movable contact spring is backed down, the contact on the movable contact spring and the contact of static contact are disengaged; cut off circuit, the realization accident is toppled over protection.When the electrical equipment utensil take place unusual when overheated for example above 85 ℃, the temperature-sensitive bimetal leaf is because of the hot account coefficient of the material difference on two surfaces, be bent upwards distortion and produce Kick type, thereby contact on the movable contact spring and the contact on the static contact are disengaged, because above-mentioned sash weight mechanism, its suspension rod left and right sides any direction forwards, backwards freely swings, that is to say when the electrical equipment utensil when any direction is toppled over, sash weight mechanism all can cut off circuit equivalently, guarantees electrical safety.
Claims (7)
1. difunctional safety protection switch; comprise that being fixed on body (1) goes up and suppress the static contact (4) of contact; movable contact spring (5); it is characterized in that described static contact (4) is provided with through hole (6); the suspension rod (7) that in through hole (6), is provided with band sash weight (8) and can swings; the end (9) of suspension rod (7) be held on that through hole (6) is gone up and static contact (4) and movable contact spring (5) between; keep isolating with movable contact spring (5); when the plane inclination of static contact (4); the movable contact spring (5) with static contact (4) inclination can be touched in end (9); movable contact spring (5) is separated with static contact (4); be installed with the temperature-sensitive bimetal leaf (10) that electricity is isolated between static contact (4) and movable contact spring (5), temperature-sensitive bimetal leaf (10) can make movable contact spring (5) stick up after sticking up change to become and separates with static contact (4) being heated.
2. difunctional safety protection switch according to claim 1 is characterized in that described temperature-sensitive bimetal leaf (10) one ends are arranged on the movable contact spring (5), is provided with the insulating part (12) that prevents that electricity from connecting between the other end and the static contact (4).
3. difunctional safety protection switch according to claim 2 is characterized in that described movable contact spring (5) is provided with the bayonet socket (13) that the end that can make temperature-sensitive bimetal leaf (10) is inserted.
4. according to claim 2 or 3 described difunctional safety protection switch, it is characterized in that described temperature-sensitive bimetal leaf (10) is provided with the hole clipping (14) that the insulating part (12) that is fixed on the static contact (4) is inserted.
5. difunctional safety protection switch according to claim 1 is characterized in that described static contact (4), movable contact spring (5) are provided with electric connection terminal (2), (3) of electrical connection.
6. difunctional safety protection switch according to claim 1 is characterized in that described body (1) has three insulating washers (15) that movable contact spring (5) and static contact (4) are isolated clamping, by affixed being integral of bolt (16).
7. difunctional safety protection switch according to claim 6 is characterized in that described insulating washer (15) is provided with can make projecting ring section (17) that static contact (4), movable contact spring (5), electric connection terminal (2), (3) and bolt (16) isolate and concave part (18) that can ccontaining projecting ring section (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072332 CN2713617Y (en) | 2004-08-05 | 2004-08-05 | Double-function security protection switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072332 CN2713617Y (en) | 2004-08-05 | 2004-08-05 | Double-function security protection switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713617Y true CN2713617Y (en) | 2005-07-27 |
Family
ID=34874097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072332 Expired - Fee Related CN2713617Y (en) | 2004-08-05 | 2004-08-05 | Double-function security protection switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2713617Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416025A (en) * | 2019-08-01 | 2019-11-05 | 广东汇莱德温控器有限公司 | Coupler with elastic overheating protection function |
-
2004
- 2004-08-05 CN CN 200420072332 patent/CN2713617Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110416025A (en) * | 2019-08-01 | 2019-11-05 | 广东汇莱德温控器有限公司 | Coupler with elastic overheating protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20050727 |