CN202067727U - Safety device of temperature controller - Google Patents
Safety device of temperature controller Download PDFInfo
- Publication number
- CN202067727U CN202067727U CN2011200726975U CN201120072697U CN202067727U CN 202067727 U CN202067727 U CN 202067727U CN 2011200726975 U CN2011200726975 U CN 2011200726975U CN 201120072697 U CN201120072697 U CN 201120072697U CN 202067727 U CN202067727 U CN 202067727U
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- safety plate
- thermostat
- sheet
- safeties
- insuring
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Abstract
A safety device of a temperature controller comprises an upper safety plate, a lower safety plate, an insulating ejection rod and a fusible substance at the bottom of the insulating ejection rod; the upper safety plate and the lower safety plate are fixed on an insulating ring bracket of the temperature controller; the upper safety plate and the lower safety plate are contacted by the ejection of the insulating ejection rod; the lower safety plate is connected with a temperature regulating device of the temperature controller, wherein the lower safety plate consists of an elastic alloy layer and a conductive alloy layer; the lower safety plate adopts a double-layer structure made of the elastic alloy layer and the conducting alloy layer; therefore, not only can the requirements on deformation and reset capability of the lower safety plate be met, but also the electricity and heat conducting properties of the lower safety plate can be met; meanwhile, the upper safety plate and the lower safety plate are subject to silver coating only at the contacting part; therefore, the use amount of coated silver is greatly reduced, the material cost of the product is effectively reduced, and the market competitiveness of the product is improved.
Description
Technical field
The relevant a kind of thermoswitch device of the utility model is meant a kind of thermostat safeties especially.
Background technology
Usually be applied to all have safeties as the thermostat in the household appliances such as electric iron.Cooperate shown in Figure 1, this safety type thermostat is mainly by temperature-control adjustment device A and safeties B ' and cooperate a plurality of dead ring C and constitute, sheet metal and terminal are set respectively between each dead ring C and form dynamic circuit turn-on and the disconnection relation, so that adjustability and fail safe in actual use has a guarantee reliably to household appliances.
As shown in Figure 1, the safeties B ' of existing thermostat, be comprise the sheet 1 ' of insuring, down safety plate 2 ' and the pushing tow sheet 1 ' of insuring is realized the insulating knockout pin 3 ' that the two contacts with following safety plate 2 ', the fusible material (not shown) that also has this insulating knockout pin 3 ' bottom to cooperate, the end of sheet 1 ' and following safety plate 2 ' of insuring is separately fixed at dead ring C place, and the other end of the two is a free end.During the electric equipment products normal operating conditions, the fusible material of this insulating knockout pin 3 ' bottom is a solid-state form, the support that promptly insulating knockout pin 3 ' is had a height, make its upper end be in higher position, insure sheet 1 ' of pushing tow is in contact condition with following safety plate 2 ', with the circuit that makes electric equipment products is to be in conducting state herein, thereby makes things convenient for the operate as normal of thermostat temperature-control adjustment device A; And the effect of safeties B ' is when thermostat temperature-control adjustment device A is malfunctioning, be temperature-control adjustment device A when temperature surpasses the temperature of setting also can't the condition of open circuit under, fusible material among the safeties B ' begins fusing when meeting with the temperature that surpasses the electric equipment products setting, then the height of insulating knockout pin 3 ' bottom supports and just can lose, it moves down with gravity, this moment, insulating knockout pin 3 ' lost the following safety plate 2 ' power that holds of safety plate 1 ' upwards, following safety plate 2 ' is under the restoring force effect of self deformation and break away from and the contacting of the sheet 1 ' of insuring, thereby open circuit prevents that the electric equipment products temperature from continuing rising and causing danger.
The present sheet 1 ' of insuring is thin straight type shell fragment with following safety plate 2 ', for guaranteeing elastic deformation that it is preferable and the restoring force of self, normally adopt stainless steel substrates, simultaneously silver-plated on whole shell fragment, silver-plated purpose is to guarantee that electric conductivity is good, the elastic force of guaranteeing whole shell fragment is not because of high temperature failure, because stainless conductivity a little less than, energising will be because of the excessive heating of resistance value under the not silver-plated situation, cause elastic fatigue, cause down safety plate 2 ' malfunctioning easily, to making safeties invalid with the sheet 1 ' self-detaching of insuring.Therefore, existing thermostat safeties can there are the following problems:
1, material cost height, because silver is noble metal, insure sheet 1 ' and the silver-plated high use amount that causes silver of following safety plate 2 ' full wafer make safety type thermostat cost along with the silver-colored valency fluctuation in the world is difficult to control.
2, the cost of manufacture height, because insulating knockout pin 3 ' is the insulation material, normally adopt ceramic bar, and the dimensional accuracy of pottery is wayward, its margin of tolerance is bigger, and insulating knockout pin 3 ' is that the free end that leans safety plate 2 ' under the straight chip cooperates with the free section of the sheet 1 ' of insuring among the above-mentioned safeties B ', for guaranteeing the margin of tolerance of ceramic push rod, suitability when the flexure strip that the sheet 1 ' of insuring must be set to have certain deformation space just can satisfy insulating knockout pin 3 ' assembling adopts simultaneously and must consider will integral body silver-plated with the sheet 1 ' of insuring of following safety plate 2 ' identical material; The deformation space of sheet 1 ' of insuring again is limited, the tolerance of ceramic push rod must be controlled in the effective range during making, certainly will cause processing and the assembly difficulty of making ceramic push rod.
The utility model content
Main purpose of the present utility model provides a kind of thermostat safeties, and it can effectively reduce silver-plated use amount, to reach the effect of economical with materials cost.
Secondary objective of the present utility model provides a kind of thermostat safeties, and it can reduce the processing technology requirement to insulating knockout pin, thereby reduces the difficulty of processing of safeties.
For achieving the above object, solution of the present utility model is:
A kind of thermostat safeties, it comprises the fusible material of the sheet of insuring, following safety plate, insulating knockout pin and insulating knockout pin bottom, the stiff end of sheet and following safety plate of insuring is to be fixed on the insulation ring stand of thermostat, insulating knockout pin holds down safety plate contacts the two free end with the sheet of insuring, and safety plate is connected with the temperature-control adjustment device of thermostat down; Wherein: following safety plate is made up of elastic alloy layer and electrical conductivity alloy layer.
Described contact position of insuring sheet and following safety plate is provided with silver coating.
The free-ended below of the described sheet of insuring is provided with a contact, and the corresponding contact of this contact is a contact of safety plate free end top setting down.
The described elastic alloy layer of safety plate down is a stainless steel substrates, and the electrical conductivity alloy layer is a copper sheet.
The stiff end of the described sheet of insuring form a collar and overlap be fixed in the insulation ring stand on, the stiff end of following safety plate also form the collar and overlap be fixed in the insulation ring stand on.
The described sheet of insuring is that rigid material is made, and the described free end of safety plate down is provided with curved boom structure.
The described sheet of insuring is an iron plate.
Described curved boom is provided with the anchor point of insulating knockout pin upper end, location.
Described anchor point is the downward groove of curved boom corner concave surface.
After adopting such scheme, thermostat safeties of the present utility model, sheet adopts rigid material owing to insure, only need with silver-plated the getting final product in following safety plate contact position, and following safety plate adopts the double-decker of elastic alloy layer and electrical conductivity alloy layer, the elastic alloy layer satisfies the ability of safety plate deformation down and answer, and the electrical conductivity alloy layer is used to improve the electrical and thermal conductivity performance of safety plate down, guarantee that the elastic alloy layer is in long-term the use, its elasticity can successively not decreased because of being heated, the silver-plated zone of the following safety plate of order like this only is arranged on and the sheet position contacting of insuring gets final product, insure effective reduction in silver-plated zone on sheet and the following safety plate, significantly reduce silver-plated use amount, effectively saved the product material cost, improved the competitiveness of product in market.
In addition, the design of following safety plate curved boom moulding, the fit structure of while insulating knockout pin and curved boom corner, improved the deformed region of time safety plate, it is strengthened by the ability of insulating knockout pin size restrictions when contacting with the sheet of insuring, make the difficulty of processing of insulating knockout pin effectively reduce, thereby reduced the processing cost of safeties.
Moreover the fit form of this curved boom turning and insulating knockout pin can also ensure down effectively that the deformation of safety plate resets, and when guaranteeing safeties work, following safety plate effectively breaks away from the sheet of insuring and cuts off circuit, improves the safety performance of thermostat.
Description of drawings
Fig. 1 is the cutaway view of existing thermostat;
Fig. 2 is the three-dimensional exploded view of the utility model thermostat;
Fig. 3 is the cutaway view (not having the coordinated insulation push rod) of the utility model thermostat;
Fig. 4 is the partial enlarged drawing of Fig. 3;
Fig. 5 is the end view of the utility model thermostat;
Fig. 6 is the vertical view of the utility model thermostat.
Embodiment
Cooperate Fig. 2 to shown in Figure 6, the utility model has disclosed a kind of thermostat safeties, this thermostat mainly comprises temperature-control adjustment device A and safeties B, and the insulation ring stand C that cooperates the two, wherein temperature-control adjustment device A comprises adjusting portion, conducting portion and induction part, and the non-this case emphasis of temperature-control adjustment device A does not herein describe in detail at this, its version is various, and structure shown in the figure only is used to illustrate the cooperation sample attitude of safeties of the present utility model for an embodiment wherein.
And safeties B comprises the fusible material (not shown) of the sheet 1 of insuring, following safety plate 2, insulating knockout pin 3 and insulating knockout pin 3 bottoms, the stiff end of sheet 1 and following safety plate 2 of insuring is to be fixed on the insulation ring stand C of thermostat, insulating knockout pin 3 holds down safety plate 2 contacts the two free end with the sheet 1 of insuring, and safety plate 2 is connected with the temperature-control adjustment device A of thermostat down.
Key of the present utility model is: following safety plate 2 is made up of elastic alloy layer 21 and electrical conductivity alloy layer 22, and elastic alloy layer 21 is provided with contact 24 with the contact position of the sheet 1 of insuring simultaneously, and electrical conductivity alloy layer 22 is and temperature-control adjustment device A contact matching.
The above-mentioned elastic alloy layer 21 of safety plate 2 down can adopt stainless steel substrates to satisfy the ability of safety plate 2 deformation down and answer, and electrical conductivity alloy layer 22 can adopt copper sheet, be used to improve the electrical and thermal conductivity performance of safety plate 2 down, guarantee elastic alloy layer 21 in long-term the use, its elasticity can successively not decreased because of being heated.
The above-mentioned sheet 1 of insuring can adopt straight sheet moulding, and its stiff end can form a collar 11 and cover is fixed on the insulation ring stand C, and its free-ended below forms contact 12, and these 12 places, contact are provided with silver coating and get final product, and so can effectively reduce silver-plated use amount; The stiff end that then descends safety plate 2 also forms the collar 23 and cover is fixed on the insulation ring stand C, is provided with contact 24 on following safety plate 2 free ends of sheet 1 contact, 12 corresponding contacts of insuring, and this contact 24 is provided with silver coating, has so further reduced silver-plated use amount.
The outer curved boom 25 that forms of the stiff end of above-mentioned safety plate 2 down, the free end of curved boom 25 contacts with the free end of the sheet 1 of insuring, and the upper end of insulating knockout pin 3 leans the corner at curved boom 25, coordinated insulation push rod 3 like this, then descend the deformed region of safety plate 2 to strengthen, it is strengthened by the ability of insulating knockout pin 3 size restrictions when contacting with the sheet 1 of insuring, and so the machining accuracy to insulating knockout pin 3 decreases, directly reduce the difficulty of processing of insulating knockout pin 3, effectively reduced processing cost.In addition, the fit form of these curved boom 25 turnings and insulating knockout pin 3 can ensure down effectively that the deformation of safety plate 2 resets, and when guaranteeing safeties work, following safety plate 2 effectively breaks away from the sheet 1 of insuring and cuts off circuit, improves the safety performance of thermostat.
Better for the fitness that makes insulating knockout pin 3 and following safety plate 2, the recess 26 that can further form the indent that makes progress below the corner of curved boom 25 is avoided the contact matching of disengaging of insulating knockout pin 3 upper ends and following safety plate 2 with insulating knockout pin 3 upper ends, location.
For the elastic alloy layer 21 that makes down safety plate 2 and electrical conductivity alloy layer 22 secure fit together, the elastic alloy layer 21 bottom-up formation pit at following safety plate 2 curved booms 25 free-ended salient points 24 places, and electrical conductivity alloy layer 22 top form the protruding grain be embedded in the pit, thereby make the firm buckle of elastic alloy layer 21 and electrical conductivity alloy layer 22 together.
In thermostat when work,, temperature-control adjustment device A is subjected to the variation of ambient temperature and conducting or cut off circuit; When temperature-control adjustment device A is malfunctioning, be that ambient temperature continues to raise, when surpassing the design temperature of electric equipment products, the fusible material of insulating knockout pin 3 bottoms begins fusing, then the height of insulating knockout pin 3 bottoms supports and just can lose, it moves down with gravity, this moment, insulating knockout pin 3 lost following safety plate 2 power that holds of safety plate 1 upwards, following safety plate 2 is under the restoring force effect of self deformation and break away from and the contacting of the sheet 1 of insuring, thereby cut off circuit by force, play the effect of insurance, prevent that the electric equipment products temperature from continuing rising and causing danger.
In sum, thermostat safeties B of the present utility model, sheet 1 adopts rigid material owing to insure, only need with silver-plated the getting final product in following safety plate 2 contact positions, and following safety plate 2 adopts the double-decker of elastic alloy layers 21 and electrical conductivity alloy layer 22, elastic alloy layer 21 satisfies the ability of safety plate 2 deformation down and answer, and electrical conductivity alloy layer 22 is used to improve the electrical and thermal conductivity performance of safety plate 2 down, guarantee that elastic alloy layer 21 is in long-term the use, its elasticity can successively not decreased because of being heated, the silver-plated zone of the following safety plate 2 of order like this only is arranged on and sheet 1 position contacting of insuring gets final product, insure effective reduction in silver-plated zone on sheet 1 and the following safety plate 2, significantly reduce silver-plated use amount, effectively saved the product material cost, improved the competitiveness of product in market.In addition, the design of following safety plate 2 curved boom moulding, the fit structure of while insulating knockout pin 3 and curved boom 25 corners, improved the deformed region of time safety plate 2, it is strengthened by the ability of insulating knockout pin 3 size restrictions when contacting with the sheet 1 of insuring, make the difficulty of processing of insulating knockout pin 3 effectively reduce, thereby reduced the processing cost of safeties.Moreover the fit form of these curved boom 25 turnings and insulating knockout pin 3 can also ensure down effectively that the deformation of safety plate 2 resets, and when guaranteeing safeties work, following safety plate 2 effectively breaks away from the sheet 1 of insuring and cuts off circuit, improves the safety performance of thermostat.
Claims (9)
1. thermostat safeties, it comprises the fusible material of the sheet of insuring, following safety plate, insulating knockout pin and insulating knockout pin bottom, the stiff end of sheet and following safety plate of insuring is to be fixed on the insulation ring stand of thermostat, insulating knockout pin holds down safety plate contacts the two free end with the sheet of insuring, and safety plate is connected with the temperature-control adjustment device of thermostat down; It is characterized in that: following safety plate is made up of elastic alloy layer and electrical conductivity alloy layer.
2. thermostat safeties as claimed in claim 1 is characterized in that: the contact position of insure sheet and following safety plate is provided with silver coating.
3. thermostat safeties as claimed in claim 1 is characterized in that: the free-ended below of the described sheet of insuring is provided with a contact, and the corresponding contact of this contact is a contact of safety plate free end top setting down.
4. as claim 1,2 or 3 described thermostat safeties, it is characterized in that: the described elastic alloy layer of safety plate down is a stainless steel substrates, and the electrical conductivity alloy layer is a copper sheet.
5. as claim 1,2 or 3 described thermostat safeties, it is characterized in that: the stiff end of the described sheet of insuring form a collar and overlap be fixed in the insulation ring stand on, the stiff end of following safety plate also form the collar and overlap be fixed in the insulation ring stand on.
6. as claim 1,2 or 3 described thermostat safeties, it is characterized in that: the described sheet of insuring is that rigid material is made, and the described free end of safety plate down is provided with curved boom structure.
7. thermostat safeties as claimed in claim 6 is characterized in that: the described sheet of insuring is an iron plate.
8. thermostat safeties as claimed in claim 6 is characterized in that: described curved boom is provided with the anchor point of insulating knockout pin upper end, location.
9. thermostat safeties as claimed in claim 8 is characterized in that: described anchor point is the downward groove of curved boom corner concave surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200726975U CN202067727U (en) | 2011-03-18 | 2011-03-18 | Safety device of temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200726975U CN202067727U (en) | 2011-03-18 | 2011-03-18 | Safety device of temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202067727U true CN202067727U (en) | 2011-12-07 |
Family
ID=45061584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200726975U Expired - Lifetime CN202067727U (en) | 2011-03-18 | 2011-03-18 | Safety device of temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202067727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260230A (en) * | 2018-01-18 | 2018-07-06 | 广东小豚电器科技有限公司 | A kind of electrothermal tube temperature controller assembly |
-
2011
- 2011-03-18 CN CN2011200726975U patent/CN202067727U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108260230A (en) * | 2018-01-18 | 2018-07-06 | 广东小豚电器科技有限公司 | A kind of electrothermal tube temperature controller assembly |
| CN108260230B (en) * | 2018-01-18 | 2024-01-30 | 佛山市顺德区华申电器制造有限公司 | Electric heating tube temperature controller assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |
|
| CX01 | Expiry of patent term |