CN204680619U - A kind of anti-dry burning device - Google Patents
A kind of anti-dry burning device Download PDFInfo
- Publication number
- CN204680619U CN204680619U CN201520272382.3U CN201520272382U CN204680619U CN 204680619 U CN204680619 U CN 204680619U CN 201520272382 U CN201520272382 U CN 201520272382U CN 204680619 U CN204680619 U CN 204680619U
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- China
- Prior art keywords
- pin
- fixed head
- action movie
- burning device
- dry burning
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Abstract
The utility model relates to temperature control sensor technical field, particularly a kind of anti-dry burning device.Comprise base, be provided with the first pin and the second pin in base, in the upper port of base, be provided with fixed head; The upper end of described first pin is provided with triggering sheet, and the upper end of the second pin is provided with action movie; Described fixed head is provided with ceramic bar and hot melt assembly, is provided with thermal sensitive piece above ceramic bar and hot melt assembly; Described ceramic bar lower end is connected with action movie through fixed head, links through fixed head and triggering sheet and arrange in hot melt assembly lower end.The utility model is rational in infrastructure, triggers sheet and action movie cooperation composition switching circuit, cuts off and trigger the connection of sheet to protect operating circuit when action movie temperature rise is too high; When temperature exceedes the fusing value of fusing core, fracture makes triggering sheet cut off and realizes duplicate protection with the connection of action movie; Vibrational power flow is compact, and assembling is quick, and single thermal sensitive piece action avoids the connection cooperation between each parts and lead solder-joint to be out of shape, and improves whole service life and stability.
Description
Technical field
The utility model relates to temperature control sensor technical field, particularly a kind of anti-dry burning device.
Background technology
Dry-burning preventing sensor common in the market, comprise mounting cup, sensitive switch and switch supporting plate, sensitive switch arranges with in mounting cup, mounting cup is flexibly connected with switch supporting plate, and being provided with back-moving spring between mounting cup and switch supporting plate, switch supporting plate is fixed on mounting base, exercises the heater circuit on sensitive switch connection mounting base during use under mounting cup, heater circuit is in series with temperature-sensitive assembly, when mounting cup is released, then disconnects heater circuit.
In use there is more problem in the transducer of this vibrational power flow, in transducer, anti-dry breaker device and other fuse protections mechanism realize linking by the knee-action of mounting cup and trigger, anti-dry burning device and circuit need break-make frequently to connect electronic work, the power part part of anti-dry burning device and circuit, at a distance of comparatively closely easily there is arc and surface oxidation, causes the bad and overcurrent damage of sensor contacts; Each workpiece in transducer needs higher build-up tolerance when assembling, and causes that overall structure die sinking cost is higher, assembling difficulty; The fuse protection mechanism of transducer separate configurations makes integral structure layout more complicated, assembles difficulty and less stable; The independent fuse protection arranged is not protected other workpieces in transducer, and the irrationality of its vibrational power flow causes inherently safe coefficient lower, difficult in maintenance and cost is higher.
Summary of the invention
The purpose of this utility model is defect for prior art and deficiency, provide a kind of rational in infrastructure, safe and reliable, assemble anti-dry burning device efficiently.
For achieving the above object, the utility model is by the following technical solutions:
A kind of anti-dry burning device described in the utility model, comprises base, is provided with the first pin and the second pin, is provided with fixed head in the upper port of base in base; The upper end of described first pin and the second pin is oppositely arranged, and the upper end of the first pin is provided with triggering sheet, and the upper end of the second pin is provided with action movie, and the free end of action movie correspondence is arranged on the below of the free end triggering sheet; Described fixed head is provided with ceramic bar and hot melt assembly, is provided with thermal sensitive piece, is provided with elastic spring between thermal sensitive piece and fixed head above ceramic bar and hot melt assembly; Described ceramic bar lower end is connected with action movie through fixed head, links through fixed head and triggering sheet and arrange in hot melt assembly lower end.
Further, described hot melt assembly comprises fusing core and support spring, fusing core to be arranged on fixed head and fusing core upper end is corresponding with thermal sensitive piece arranges; Described support spring is connected between fusing core lower end and base, and support spring upper end is provided with shifting fork bar, and one end of shifting fork bar is connected with triggering sheet.
Further, described fusing core upper end is provided with temperature sensing board, and the fixed head of fusing core side is provided with pedestal, and one end of temperature sensing board is connected with base runner.
Further, described temperature sensing board is in " Ω " shape vibrational power flow, and the fixed head of fusing core opposite side is provided with breach, and the size of breach is mated with temperature sensing board free end; Described breach is provided with buckle, and the free end of temperature sensing board is arranged between buckle and breach, and the upper surface of fusing core is to being located on temperature sensing board.
Further, the steel wire on described support spring top extends the shifting fork bar in horizontally set, and shifting fork bar top is overlapped on the top of triggering sheet.
Further, the outer rim on described fusing core top is provided with closing in groove.
Further, described first pin upper end is laterally provided with folding, and the upper end of the second pin is laterally provided with flange, and folding and flange are located in the differing heights plane in base respectively, and the elevation plane of flange is lower than the elevation plane of folding; Described triggering sheet is fixedly connected with folding, and action movie is fixedly connected with flange.
Further, described folding and flange are equipped with fixed terminal, and fixed terminal side is provided with and is equipped with positioning terminal, trigger sheet and be connected with the fixed terminal in folding and positioning terminal, action movie is connected with the fixed terminal on flange and positioning terminal.
Further, described elastic spring is " U " shape vibrational power flow of traverse, and elastic spring lower end is connected with fixed head, and elastic spring upper end is connected with thermal sensitive piece and can moves up and down; The rear side of described elastic spring is provided with limiting plate.
Further, the level height of described limiting plate and ceramic bar upper surface is equipped with.
The utility model beneficial effect is: the utility model is rational in infrastructure, trigger sheet and action movie cooperation composition switching circuit, thermal sensitive piece drives the action of fusing core ribbon dynamic triggering sheet to activate overtemperature protection pattern, thermal sensitive piece to action movie transition temperature by ceramic bar, is cut off when action movie temperature rise is too high and triggers the connection of sheet to protect operating circuit; When action movie lockout mode lost efficacy, temperature exceedes the fusing value of fusing core, the fracture of fusing core makes triggering sheet reply initial condition and cuts off the connection with action movie, thus plays duplicate protection to transducer and operating circuit; Vibrational power flow is compact, and assembling is quick, and single thermal sensitive piece action avoids the connection cooperation between each parts and lead solder-joint to be out of shape, and improves whole service life and stability.
Accompanying drawing explanation
Fig. 1 is overall detonation configuration schematic diagram of the present utility model;
Fig. 2 is main body assembly structure schematic diagram of the present utility model.
In figure:
1, base; 2, the first pin; 3, the second pin; 4, fuse core;
1, fixed head; 12, elastic spring; 13, thermal sensitive piece; 14, limiting plate;
15, pedestal; 16, buckle; 17, breach; 21, folding;
22, sheet is triggered; 23, fixed terminal; 24, positioning terminal; 31, flange;
32, action movie; 33, ceramic bar; 41, support spring; 42, shifting fork bar;
43, closing in groove; 44, temperature sensing board.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
A kind of anti-dry burning device described in the utility model, comprises base 1, is provided with the first pin 2 and the second pin 3, is provided with fixed head 11 in the upper port of base 1 in base 1; The upper end of described first pin 2 and the second pin 3 is oppositely arranged, and the upper end of the first pin 2 is provided with the upper end of triggering sheet 22, second pin 3 and is provided with action movie 32, and the free end of action movie 32 correspondence is arranged on the below of the free end triggering sheet 22; Described fixed head 11 is provided with ceramic bar 33 and hot melt assembly, is provided with thermal sensitive piece 13, is provided with elastic spring 12 between thermal sensitive piece 13 and fixed head 11 above ceramic bar 33 and hot melt assembly; Described ceramic bar 33 lower end is connected with action movie 32 through fixed head 11, and link through fixed head 11 and triggering sheet 22 and arrange in hot melt assembly lower end, above-mentioned parts are the utility model agent structure.
During work, trigger the height and position that sheet 22 is different in base 1 respectively from action movie 32, trigger sheet 22 under initial condition not contact with action movie 32 free end, transducer entirety is fixedly connected with electric heating appliance, first pin 2 is connected with master control borad heater circuit with the second pin 3, putting into pot makes transducer upper end action component press down, and then drive thermal sensitive piece 13 with hot melt component touch and drive it to bottom offset, hot melt assembly drives triggering sheet 22 to contact with action movie 32 when coming downwards to extreme position, thermal sensitive piece 13 is conflict ceramic bar 33 upper end simultaneously; Now anti-dry burning device activates overheat protective function and is communicated with master control borad and heater circuit, during heater work, interior pot temperature is conducted to thermal sensitive piece 13 by action component, when thermal sensitive piece 13 temperature rise is too high, action movie 22 is bent downwardly distortion thus departs from the connection triggering sheet 22, and then cuts off master control borad and heater circuit; Then fall rear action movie 22 deformation at temperature to recover, if pot also exists now, again connect master control borad and heater circuit, now transducer controls electric heating appliance and realizes heat insulation function; If action movie 13 is when set point fails to produce deformation cut-out circuit; when temperature rise continues to bring up to hot melt component operation value; Fuse assembly distortion makes triggering sheet 22 upspring and then cuts off master control borad and heater circuit, thus plays overheated duplicate protection to transducer and electric heating appliance.
Above-mentioned hot melt assembly comprises fusing core 4 and support spring 41, fusing core 4 to be arranged on fixed head 11 and fusing core 4 upper end is corresponding with thermal sensitive piece 13 arranges; Described support spring 41 is connected between fusing core 4 lower end and base 1, and support spring 41 upper end is provided with shifting fork bar 42, and one end of shifting fork bar 42 is connected with triggering sheet 22; Described thermal sensitive piece 13 contacts when pressing down and drives fusing core 2 to decline, and by compressing, shifting fork bar 42 declines support spring 41 thereupon, and shifting fork bar 42 drives triggering sheet 22 to make it be connected with action movie 32, thus activates overheat protective function; When thermal sensitive piece 13 temperature rise exceedes the fusing value of fusing core 4, fusing core 4 melts and then discharges support spring 41 makes shifting fork bar 42 upspring, and triggers sheet 22 and upsprings thereupon and cut off the connection with action movie 32.
Under normal circumstances, the deformation temperature >180 DEG C of action movie 32, the fusing-off temperature >190 DEG C of fusing core 2, the optimum fusing-off temperature of fusing core 2 is 240 DEG C.
Described shifting fork bar 42 is one-body molded with Compress Spring 3, and fusing core 2 presses down the retraction stroke amount of Stroke Control support spring 3, and then controls the action accuracy of shifting fork bar 42, more can improve the convenience of overall I& M.
Above-mentioned fusing core 4 upper end is provided with temperature sensing board 44, and the fixed head 11 of fusing core 4 side is provided with pedestal 15, and one end of temperature sensing board 44 is flexibly connected with pedestal 15; Described temperature sensing board 44 is in " Ω " shape vibrational power flow, and the fixed head 11 of fusing core 4 opposite side is provided with breach 17, and the size of breach 17 is mated with temperature sensing board 44 free end; Described breach 17 is provided with buckle 16, and the free end of temperature sensing board 44 is arranged between buckle 16 and breach 17, and the upper surface of fusing core 4 is to being located on temperature sensing board 44.
The steel wire on above-mentioned support spring 41 top extends the shifting fork bar 42 in horizontally set, and shifting fork bar 42 top is overlapped on the top of triggering sheet 22.
The outer rim on above-mentioned fusing core 4 top is provided with closing in groove 43; The minimum diameter of closing in groove 43 is less than the external profile diameter of fusing core 4, thus when core 4 temperature rise that fuses exceedes fusing value, the fusing core 4 at closing in groove 43 place can melt fracture quickly, thus reduce the fusing response time to improve sensitivity of the present utility model, improve overall safety in utilization further.
The upper end that above-mentioned first pin 2 upper end is laterally provided with folding 21, second pin 3 is laterally provided with flange 31, and folding 21 and flange 31 are located in the differing heights plane in base 1 respectively, and the elevation plane of flange 31 is lower than the elevation plane of folding 21; Described triggering sheet 22 is fixedly connected with folding 21, and action movie 32 is fixedly connected with flange 31; Described folding 21 and the first pin 2 are integrated punch forming, and flange 31 and the second pin 3 are integrated punch forming, and folding 21 and flange 31 are fixing in differing heights plane triggers sheet 22 and action movie 32, effectively can improve efficiency of assembling and the precision of transducer.
Above-mentioned folding 21 and flange 31 are equipped with fixed terminal 23, and fixed terminal 23 side is provided with and is equipped with positioning terminal 24, trigger sheet 22 to be connected with the fixed terminal 23 in folding 21 and positioning terminal 24, action movie 32 is connected with the fixed terminal 23 on flange 31 and positioning terminal 24; Described first pin 2 and the second pin 3 are relative spacing, action movie 32 and the connection triggering sheet 22 projects and are 180 degree and transfer, determine to trigger the angle of assembling between sheet 22 and folding 21, between action movie 32 and flange 31 by positioning terminal 24, thus triggering sheet 22 and action movie 32 are oppositely arranged and free end overlaps up and down.
Above-mentioned elastic spring 12 is " U " shape vibrational power flow of traverse, and elastic spring 12 lower end is connected with fixed head 11, and elastic spring 12 upper end is connected can moves up and down with thermal sensitive piece 13; The rear side of described elastic spring 12 is provided with limiting plate 14; Above-mentioned limiting plate 14 is equipped with the level height of ceramic bar 33 upper surface; First thermal sensitive piece 13 contacts fusing core 4 in downward storke; thermal sensitive piece 13 drives fusing core 4 to bottom offset, shifting fork bar 42 to be driven and triggers sheet 22 contact action sheet 32; now overtemperature protection pattern activates; thermal sensitive piece 13 and ceramic bar 33 are conflicted and by it to action movie 32 heat conduction, therefore thermal sensitive piece 13 and ceramic bar 3 resistance surface are the descending extreme position of thermal sensitive piece 13 and the upper transverse plane of limiting plate 14.
The above is only better embodiment of the present utility model, therefore all equivalences done according to structure, feature and the principle described in the utility model patent claim change or modify, and are included in the utility model patent claim.
Claims (10)
1. an anti-dry burning device, comprises base (1), is provided with the first pin (2) and the second pin (3), is provided with fixed head (11) in the upper port of base (1) in base (1); It is characterized in that: the upper end of described first pin (2) and the second pin (3) is oppositely arranged, the upper end of the first pin (2) is provided with triggers sheet (22), the upper end of the second pin (3) is provided with action movie (32), and the free end correspondence of action movie (32) is arranged on the below of the free end triggering sheet (22); Described fixed head (11) is provided with ceramic bar (33) and hot melt assembly, be provided with thermal sensitive piece (13) above ceramic bar (33) and hot melt assembly, between thermal sensitive piece (13) and fixed head (11), be provided with elastic spring (12); Described ceramic bar (33) lower end is connected with action movie (32) through fixed head (11), links through fixed head (11) and triggering sheet (22) and arrange in hot melt assembly lower end.
2. anti-dry burning device according to claim 1, it is characterized in that: described hot melt assembly comprises fusing core (4) and support spring (41), it is upper and fuse that core (4) upper end is corresponding with thermal sensitive piece (13) to be arranged that fusing core (4) is arranged in fixed head (11); Described support spring (41) is connected between fusing core (4) lower end and base (1), support spring (41) upper end is provided with shifting fork bar (42), and one end of shifting fork bar (42) is connected with triggering sheet (22).
3. anti-dry burning device according to claim 2, it is characterized in that: described fusing core (4) upper end is provided with temperature sensing board (44), the fixed head (11) of fusing core (4) side is provided with pedestal (15), and one end of temperature sensing board (44) is flexibly connected with pedestal (15).
4. anti-dry burning device according to claim 3, it is characterized in that: described temperature sensing board (44) is in " Ω " shape vibrational power flow, the fixed head (11) of fusing core (4) opposite side is provided with breach (17), and the size of breach (17) is mated with temperature sensing board (44) free end; Described breach (17) is provided with buckle (16), the free end of temperature sensing board (44) is arranged between buckle (16) and breach (17), and the upper surface of fusing core (4) is to being located on temperature sensing board (44).
5. anti-dry burning device according to claim 2, it is characterized in that: the steel wire on described support spring (41) top extends the shifting fork bar (42) in horizontally set, and shifting fork bar (42) top is overlapped on the top of triggering sheet (22).
6. the anti-dry burning device according to claim 2-4, is characterized in that: the outer rim on described fusing core (4) top is provided with closing in groove (43).
7. anti-dry burning device according to claim 1, it is characterized in that: described first pin (2) upper end is laterally provided with folding (21), the upper end of the second pin (3) is laterally provided with flange (31), folding (21) and flange (31) are located in the differing heights plane in base (1) respectively, and the elevation plane of flange (31) is lower than the elevation plane of folding (21); Described triggering sheet (22) is fixedly connected with folding (21), and action movie (32) is fixedly connected with flange (31).
8. anti-dry burning device according to claim 2, it is characterized in that: described folding (21) and flange (31) are equipped with fixed terminal (23), and fixed terminal (23) side is provided with and is equipped with positioning terminal (24), trigger sheet (22) to be connected with the fixed terminal (23) in folding (21) and positioning terminal (24), action movie (32) is connected with the fixed terminal (23) on flange (31) and positioning terminal (24).
9. anti-dry burning device according to claim 1, it is characterized in that: " U " shape vibrational power flow that described elastic spring (12) is traverse, elastic spring (12) lower end is connected with fixed head (11), and elastic spring (12) upper end is connected can moves up and down with thermal sensitive piece (13); The rear side of described elastic spring (12) is provided with limiting plate (14).
10. anti-dry burning device according to claim 9, is characterized in that: described limiting plate (14) is equipped with the level height of ceramic bar (33) upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272382.3U CN204680619U (en) | 2015-04-30 | 2015-04-30 | A kind of anti-dry burning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520272382.3U CN204680619U (en) | 2015-04-30 | 2015-04-30 | A kind of anti-dry burning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204680619U true CN204680619U (en) | 2015-09-30 |
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ID=54180292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520272382.3U Expired - Fee Related CN204680619U (en) | 2015-04-30 | 2015-04-30 | A kind of anti-dry burning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204680619U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788961A (en) * | 2016-04-22 | 2016-07-20 | 佛山市富乐喜电子信息技术有限公司 | Compact-type temperature controller |
-
2015
- 2015-04-30 CN CN201520272382.3U patent/CN204680619U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788961A (en) * | 2016-04-22 | 2016-07-20 | 佛山市富乐喜电子信息技术有限公司 | Compact-type temperature controller |
| CN105788961B (en) * | 2016-04-22 | 2018-07-10 | 佛山市富乐喜电子信息技术有限公司 | A kind of compact temperature controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150930 Termination date: 20180430 |
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| CF01 | Termination of patent right due to non-payment of annual fee |