CN102693869A - Temperature-dependent circuit with power transmission element - Google Patents

Temperature-dependent circuit with power transmission element Download PDF

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Publication number
CN102693869A
CN102693869A CN2012100785987A CN201210078598A CN102693869A CN 102693869 A CN102693869 A CN 102693869A CN 2012100785987 A CN2012100785987 A CN 2012100785987A CN 201210078598 A CN201210078598 A CN 201210078598A CN 102693869 A CN102693869 A CN 102693869A
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China
Prior art keywords
rotating sheet
switch
contact
edge
current delivery
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Granted
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CN2012100785987A
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Chinese (zh)
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CN102693869B (en
Inventor
马赛尔·P·霍夫萨埃斯
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/32Thermally-sensitive members
    • H01H37/52Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H37/5427Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting encapsulated in sealed miniaturised housing

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

The temperature-dependent switch (10) comprises a housing (12) comprising a temperature-dependent switching mechanism (11). A ring (17) is arranged between upper and lower portions of the housing. The stationary contacts (31, 32) are provided at the inner side (37) of upper portion of housing and are connected to external terminals (35, 36). Two circular snap discs (21, 22) are provided on the switching mechanism and are supported by a shoulder (28). The uneven portions are provided at edges (19, 27) of circular snap discs respectively.

Description

Temperature detect switch (TDS) with current delivery sections
Technical field
The present invention relates to a kind of temperature detect switch (TDS), have the temperature control engaging means of the circular rotating sheet of band; The housing that holds engaging means, this housing have a lower component and a upper-part; Two fixed contacts on the side that sets within it on the upper-part, each fixed contact connects with corresponding outside terminal; The current delivery sections that is arranged on the rotating sheet and moves by rotating sheet; Wherein, Rotating sheet is supported on the supporting surface in the switch with its edge, in order to according to temperature the current delivery sections be pressed onto with two fixing contacts with reclining and/or lift from two fixing contacts.
Background technology
This type of switch is open in DE2644411C2.
Known switch has housing, and housing has the lower component of cup-shaped, inserts the engaging means of temperature control to lower component.Lower component is closed through upper-part, and upper-part remains on the lower component through the edge of the pull-up of lower component.Lower component can be processed by metal or insulating material, and upper-part under any circumstance all is made up of insulating material at this.
In upper-part, have two rivets, epicranium is as the fixed contact to engaging means in it.Engaging means carries the current delivery sections with the form of touching bridge, on the surface silver coating is set above that, and it has two interconnective butt contacts, butt contact according to the difference of temperature be placed in the reclining of two fixed contacts in and be electrically connected each other with it.
The epicranium of two outsides of two rivets is as outside terminal.
Temperature detect switch (TDS) has to be seen circular bimetallic rotating sheet and on vertical view, is seeing circular spring rotating sheet on the vertical view, it is passed by the peg that bridge is touched in carrying at the center.The all border district of spring rotating sheet guide in housing; And the bimetallic rotating sheet is supported on the supporting surface that the edge by the shoulder of lower component or spring rotating sheet forms according to the difference of temperature and has realized touching bridge reclining or having realized touching bridge on two fixed contacts in addition and lifted out from fixing contact, thereby interrupts the electrical connection between the outside terminal.
This temperature detect switch (TDS) is applied in known manner preventing that electrical equipment is overheated.For this reason, switch is connected with electrical equipment to be protected and mechanically is arranged on as follows on the electrical equipment, and promptly itself and electrical equipment are in the hot link.
Below the response temperature of bimetallic rotating sheet, touch bridge and abut on two fixing contacts, thereby make closing of circuit and electrical equipment to be protected supply power through switch.If temperature is brought up to above permissible value, then the bimetallic rotating sheet will touch bridge and lift from fixing contact, thus cut-off switch and interrupt the power supply of electrical equipment to be protected.
The electrical equipment of outage can cool off once again now.Here, with the also cooling simultaneously of switch that electrical equipment heat couples, it is closed once more automatically immediately.
Through carrying out size design to touching bridge; Known switch can be than other temperature detect switch (TDS) (in this temperature detect switch (TDS); The operating current of electrical equipment to be protected directly flows through the bimetallic rotating sheet or with its corresponding spring rotating sheet) guiding exceeds a lot of operating currents, thereby makes it can be used to protect the bigger electrical equipment with higher power consumption.
As stated, known switch is in the electrical equipment cooling automatic reclosing afterwards by its protection.When present protective ratio of this type of switch list such as hair dryer is significant, is unfavorable and after electrical equipment to be protected breaks off, do not allow once more connection automatically when avoiding damaging.This is such as being applicable to the motor that is used as drive train.
Therefore, the DE19827113 suggestion is provided with a kind of so-called self-sustaining resistance, and it is parallelly connected with the outside terminal electricity.Self-sustaining resistance is connected with electrical equipment to be protected when switch breaks off, now, because the resistance value of self-sustaining resistance is passed electrical equipment and is only flow through harmless residual current.This residual current only has been enough to heat self-sustaining resistance, and up to its heat radiation, this heat remains on it more than switch temperature with the bimetallic rotating sheet.
The disclosed switch of DE19827113 can also be implemented as the switching function with Current Control, and another resistance is set for this reason, and it is connected with outside terminal enduringly.The operating current of electrical equipment to be protected continues to flow through this thermal resistance thus; This thermal resistance can design as follows; Be that it is responsible for the bimetallic rotating sheet is heated to above more than the temperature of its response temperature when surpassing certain operating current, thereby make switch when operating current improves, before electrical equipment to be protected is heated, not break off with not allowing.
Although known switch has obtained proof technically, its useful life is owing to the high electric current of connecting is restricted.The number of times of switch process is high more, and fixing contact and the contact resistance between the current delivery sections are big more.The contact resistance that rises has also limited possible useful life.
Summary of the invention
From prior art, the objective of the invention is to, improve aforementioned switches with less designs consume, thereby prolong its useful life.
According to the present invention, this purpose realizes for aforementioned switches as follows, promptly on the edge of rotating sheet and/or be used on the supporting surface at edge at least one uneven body (Unebenheit) being set, make rotating sheet in each switch process around its vertical pivot rotation.
The object of the invention is perfect by this way to be realized.
" uneven body " is arranged on rotating sheet in category of the present invention edge originally also is arranged on the supporting surface to the edge on one's body and replacedly or extraly.This supporting surface can be a shoulder, when disconnection and/or close switch, on this shoulder, supports rotating sheet.
End face and/or the relevant supporting surface that in category of the present invention, " uneven body " is interpreted as the edge with made every effort in the prior art up to now, different with the planarization of smooth ring surface form; This has caused the edge no longer upwards abutting in equably on the shoulder in the lower component or on the ring surface in week; This can be described as crooked because of this support contact, thereby makes on the edge of rotating sheet or form such as supporting surface crooked, that rise or that descend to the edge of rotating sheet.
Uneven body can be raised or sunken in the edge of rotating sheet or on the supporting surface at edge.Uneven body can also greater than 180 ° to almost extending on 360 ° the neighboring area.Like this, relate to a kind of edge of bolt shape or to the supporting surface of the bolt shape at edge, thereby set the rotation effect to rotating sheet, this effect is always extended to equidirectional.
If a plurality of uneven bodies are set, then it can upwards extend 45 ° to 90 ° week respectively.
Inventor of the present invention recognizes, this type of is uneven knows from experience and cause rotating sheet and also cause the current delivery sections in each switch process, rotating thus, and rotates lessly, i.e. several years only.This being rotated in and breaking off and/or can cause during close switch slightly is when new switch does not always make the current delivery sections contact with butt contact at same position during closure once breaking off process after once more.
In other words; The contact-making surface that provides at the current delivery sections has obtained better utilization; Thereby make the contact resistance component that causes by the current delivery sections be assigned to a plurality of different contact positions, and the life-span correspondingly obtain prolonging, reached unallowed value generally up to contact resistance.
According to inventor's of the present invention cognition, the effect of the rotating sheet of this rotation has at first caused the component of the contact resistance on the current delivery sections slowly to rise.This can be with the onesize value of fixing contact on contact resistance that be applicable to.The contact resistance component that the rotation of but this current delivery sections has also caused dropping on the fixing contact also rises than prior art with the switch process more lentamente.
All these has caused useful life of in design, having improved known switch with simple mode, only need correspondingly design edge or its supporting surface of rotating sheet for this reason.The design variant that in addition can keep the practice of known temperature detect switch (TDS) to high electric current.
With estimate that opposite is that this rotating sheet that anisotropically is fitted on the shoulder that for this reason is provided with can not cause contact pressure to reduce or even negative effect switch performance itself.
If on the supporting surface at the edge that is directed against rotating sheet, at least one uneven body is set, therefore the change that rotating sheet itself needn't design can use common rotating sheet to realize according to rotation effect of the present invention.Here advantageously, the thermal characteristics of rotating sheet and mechanical property needn't design again.
If extra uneven body is set on rotating sheet, it can cooperate with the uneven body on the supporting surface as follows, promptly in each switch, makes rotating sheet rotate slightly.These uneven bodies can cooperate as tooth portion; Like it such as the application in the spring ball pen; There; In the rotation that all causes switch mechanical structure in the motion of pushing each time, thereby when pushing for the first time, make refill for ball-point pen stretch out and in pushing for the second time, make it withdraw once more.
Rotating sheet can also be the bimetallic rotating sheet, and it causes the disconnection campaign of clossing pressure and temperature control.But, clossing pressure can also apply through the spring rotating sheet separately or extraly, and the bimetallic rotating sheet that is provided with only causes that perhaps breaking off motion perhaps also causes contact pressure under its low-temperature condition.
Correspondingly, perhaps only the edge of bimetallic rotating sheet or spring rotating sheet, or the edge of two kinds of rotating sheets be furnished with at least one uneven body according to the present invention.Extraly uneven body can be set on supporting surface also on above-mentioned meaning.
But for according to rotation effect of the present invention, only on the edge of bimetallic rotating sheet or to the edge of bimetallic rotating sheet at least one uneven body to be set just enough.When cut-off switch, the bimetallic rotating sheet with its edge arrive with switch in the reclining of supporting surface in, this is because uneven body has caused the rotation of bimetallic rotating sheet with respect to housing.In addition, the bimetallic rotating sheet also causes under the closure state of switch contact pressure or whether this pressure only realizes it being unessential through the spring rotating sheet.
It is therefore preferable that rotating sheet is the bimetallic rotating sheet, it mechanically is connected with the current delivery sections and the current delivery sections is pressed to fixing contact and lifted from fixing contact more than the switching temperature at it at it below the switching temperature.
On the other hand preferably; Rotating sheet is the spring rotating sheet; Its pretension current delivery sections is used to cling to fixing contact, and the bimetallic rotating sheet is set in addition; It lifts the current delivery sections more than the switching temperature at it from fixing contact, preferably the spring rotating sheet is arranged between current delivery sections and the bimetallic rotating sheet in addition.
It is just enough that the bimetallic rotating sheet that had both produced the also responsible temperature control of contact pressure ground disconnection only is set on the one hand; On the other hand can be through being additional to the bimetallic rotating sheet or causing that separately the spring rotating sheet of contact pressure makes the bimetallic rotating sheet under its low-temperature condition, mechanically discharge, this is of value to the bigger long-time stability of its switch performance.
In addition preferably, the current delivery sections is the contact disc of circular, and it is furnished with at upwards closed contact-making surface of week on the surface of fixing contact at it.
Contact disc preferably the rivet through the axle journal shape in central authorities with the bimetallic rotating sheet and be connected with the spring rotating sheet in case of necessity.
If adopt the contact disc of circular, then one side allows at upwards closed contact-making surface of week with simple especially mode, and fixing contact contacts in different zones with this contact-making surface in the rotation of each contact disc.
In addition, contact disc can rotate when it is connected with rotating sheet in central authorities through rivet especially simply.
Generally preferably, upper-part is penetrated by two rivets, and the epicranium that is positioned at inside of rivet is positioned at outside epicranium as outside terminal with contact that fixes and rivet.
These characteristics have caused the design of the practice of known temperature detect switch (TDS) from aforementioned documents DE2644411C2 and DE19827113C2.
Interchangeablely be; Preferably be cast with two connection electrode with upper-part, a fixing contact in each connection electrode in two connection electrode and the fixing contact and an outside terminal in the outside terminal are connected, wherein; Preferred each connection electrode all is smooth metalwork; Preferably form at each outside terminal and the metalwork of sidepiece from the upper-part overtoping, wherein, also preferred connection electrode is placed in the upper-part in parallel to each other.
These characteristics have caused the same design of putting into practice of known temperature detect switch (TDS) from aforementioned documents DE19708436C2 and DE19727197C2.
At this, the special advantage in making new switch is that connection electrode can be connected with fixing contact and outside terminal in first step, afterwards, and injection or seal connection electrode when pouring into a mould upper-part.
In addition advantageously, the outside terminal of " being placed on by the switch " continues to connect preferably, thereby has simplified the installation of new switch on electrical equipment to be protected.
Other advantage draws from specification and accompanying drawing.
Self-evident, aforesaid and next also the characteristic of setting forth not only can also can be used in other combination or use separately, and can not broken away from protection scope of the present invention in the combination that each provides.
Description of drawings
Below, shown in the drawings and set forth embodiments of the invention below in detail.Wherein:
Fig. 1 show pass new switch schematically, not in the longitudinal section of true ratio;
Fig. 2 has illustrated another embodiment of new switch in the view like Fig. 1;
Fig. 3 shows the schematic side elevational sectional view and the bottom sectional view of the rotating sheet that uses in the switch in Fig. 1 or 2;
Fig. 4 shows the diagrammatic top view of the contact disc that uses in the switch in Fig. 1 or 2;
Fig. 5 shows the schematic side elevation of rotating sheet and the expansion of supporting shoulder, has the uneven body that raises gradually that extends on 360 ° almost;
Fig. 6 shows the view like Fig. 5, but all has a large amount of uneven bodies at rotating sheet with supporting on the shoulder; And
Fig. 7 shows the view like Fig. 5, but has the uneven body that descends gradually that is almost extending on 360 °.
Embodiment
With 10 expression temperature detect switch (TDS)s, it comprises the engaging means 11 of temperature control in Fig. 1, and this engaging means is installed in the housing 12.
Housing 12 comprises the upper-part 15 of lower component 14 and closed lower part part, and upper-part remains on the lower component through the edge 16 of the crimping of lower component 14.Ring 17 is set between lower component 14 and upper-part 15, and it is supported on the flange (Absatz) 18 of lower component 14 and the spring rotating sheet 21 of guiding engaging means 11 on the edge 19 of the spring rotating sheet 21 of engaging means 11 herein.
Engaging means 11 also comprises bimetallic rotating sheet 22 except spring rotating sheet 21; It is passed by (zapfenartig) rivet 23 of axle journal shape at the center with spring rotating sheet 21, and spring rotating sheet and bimetallic rotating sheet are through the current delivery sections mechanical connection of rivet and contact disc 24 forms.Rivet 23 has first flange 25, and bimetallic rotating sheet 22 is seated on this first flange with radial and axial gap, wherein, second flange 26 is set, and spring rotating sheet 21 is seated on this second flange with radial and axial gap equally.
The edge 27 that bimetallic rotating sheet 22 encloses with its ring is supported on ring and is trapped among on the shoulder 28 of lower component 14 inside, and it has formed the supporting surface of the annular that is used for edge 27.
Already mentioned contact disc 24 has the contact-making surface 29 that radial loop is enclosed to the direction of upper-part 15; It cooperates with fixing contact 31,32; Fixing contact is the interior head of rivet 33,34, and said rivet penetrates upper-part 15 and formed outside terminal 35,36 with its outside.
Under on-state shown in Figure 1, spring rotating sheet 21 is pressed to fixing contact 31 and 32 with bimetallic rotating sheet 22 with contact disc 24, and therefore, fixing contact 31 and 32 interconnects through contact-making surface 29; Switch 10 is closed.
If the temperature of bimetallic rotating sheet 22 is elevated to above its response temperature, then it is turned to concavity and simultaneously is supported on the zone of ring 17 with its edge 27 and the power that overcomes spring rotating sheet 21 is drawn back contact disc 24 from fixing contact 31,32 from the convex that illustrates; This switch 10 breaks off now.
The switch of describing so far is open in DE2644411C2 and DE19827113C2.If temperature reduces once more now, disclosed switch returns once more and translates into the closure state shown in Fig. 1 from DE2644411C2.
Like disclosed switch among the DE19827113C2, upper-part 15 has self-sustaining resistance 38 on the side 37 within it, and it is in fixing contact 31, electricity connection between 32.Other is to the structure of self-sustaining resistance 38 and the details reference DE19827113C2 of structure.
In an interchangeable embodiment as shown in Figure 2, temperature detect switch (TDS) 40 has housing 41, and the engaging means 11 of Fig. 1 is building up in the housing 41.
Housing 41 comprises the lower component 42 of plate-like at this, on the edge 43 of the rise of lower component, is provided with to be positioned at groove 44 outside, that ring encloses.On the edge 43 of the rise of lower component, support the upper-part 45 of takeing on 46 cup-shaped in having.Edge 47 is from interior shoulder 46 overtopings, the convexity 48 that inner loop is enclosed is set on 47 on the edge of, protruding 48 with groove 44 interlockings, thus with lower component 42 and upper-part 45 chuckings.
Edge 47 carries out the transition to the clinch
Figure BDA0000146007700000071
49 of annular, through clinch lower component 42 is further remained on the upper-part 45.Punching out or welding that this clinch 49 can pass through the outstanding zone at edge 47 produce.
Upper-part 45 is processed by insulating material, and lower component 42 is processed by insulating material equally, but also can be made of metal, and wherein, for the lower component that is made of metal, has obtained the improved hot link of switch 40 on electrical equipment to be protected.
In upper-part 45, be connected with two connection electrode that are arranged side by side 51,52, it carries the fixing contact 53,54 in the welding respectively.These two fixing contacts 53,54 are arranged on the medial surface 55 of upper-part 45.Two connection electrode 51,52 be designed to flat metalwork and with the design of outside terminal 56,57 one, outside terminal is outstanding from upper-part 45 at sidepiece.
Two fixing contacts 53,54 interconnect through contact disc 24 according to temperature, as combine Fig. 1 as described in.
Bimetallic disk 22 this also with its edge 27 shown in be supported on the shoulder 28 of lower component 42 under the on-state.In addition; Than what in Fig. 1, discern more easily be; Spring rotating sheet 21 guides in the groove 59 that ring encloses with its 19 all border district, edge
Figure BDA0000146007700000081
, and groove 59 is formed between shoulder 46 and the edge 43.
Schematic side with the cross section in Fig. 3 illustrates bimetallic rotating sheet 22, like it using in the engaging means 11 of Fig. 1 and 2.
Bimetallic rotating sheet 22 is a kind of spherical segment
Figure BDA0000146007700000082
conglobate thin slice on vertical view that is slightly with its known mode, and its edge 27 generally has end face smooth fully, annular.
Bimetallic rotating sheet 22 is such as having the diameter 60 that is approximately 8mm, wherein, its on the edge of 27 and the protuberance 62 of its spherical segment between the height with 61 marks be approximately 0.8mm.
With 63 and 64 marks two less uneven bodies on 27 on the edge of, its caused the bimetallic rotating sheet between low-temperature condition shown in Figure 3 and its condition of high temperature (it is shown in broken lines in Fig. 3) during switching-over (umspringen) bimetallic rotating sheet 22 with an angle value around its vertical pivot rotation with 65 marks.
Bimetallic rotating sheet 22 is being supported on the shoulder 28 under its low-temperature condition, and it is being supported under its condition of high temperature on the supporting surface 66, and this supporting surface can be consistent with the edge 19 of spring rotating sheet 21.If spring rotating sheet 21 is not set; Then bimetallic rotating sheet 22 correspondingly is supported on its edge 27 on the shoulder 67 that forms supporting surface, and this shoulder 67 is arranged on the ring 17 in according to the switch of Fig. 1 downwards with pointing to and in the switch according to Fig. 2, is arranged in the groove 59.
Uneven body 63 and 64 has caused in bimetallic rotating sheet 22 in the alternately support of bimetallic rotating sheet on shoulder 28 and supporting surface 66 around its vertical pivot 65 rotations.
For this reason, only need make bimetallic rotating sheet 22 have at least one this type of uneven body 63,64.Said uneven body 63 in the example shown through from the edge 27 otherwise be that smooth ring surface 68 protuberances outstanding, 0.2mm and uneven body 64 are through depression (R ü ckspringung) formation corresponding, 0.2mm.
This injustice body 63 extends such as the angular range on 50 ° the periphery 69 and uneven body 64 extends along the angular range on 80 ° the periphery 71, and this illustrates in Fig. 3 bottom, and herein, bimetallic rotating sheet 22 illustrates with upward view.
In other words, edge 27 is not smooth, but " gets garbled " in the following manner, and promptly it is not evenly and flatly to be layered on shoulder 27 or the supporting surface 66.
Replacedly or extraly can in an identical manner circular in vertical view equally (rund), the preferred just spring rotating sheet 21 of circle (kreisrund) be designed with corresponding uneven body 63,64 on its edge 19.
But for according to rotation effect of the present invention; Just enough when bimetallic rotating sheet 22 only is provided with at least one uneven body 63,64 on its edge 27, in addition when bimetallic rotating sheet 22 its under the low-temperature condition shown in Fig. 1 less than being supported on its edge 27 on the shoulder 28 but also be enough when not stressing.When cut-off switch, the bimetallic rotating sheet arrives with its edge 27 and forms reclining of shoulder 19 supporting surface, spring rotating sheet 21 here, and this is because uneven body 63,64 causes bimetallic rotating sheet 22 with respect to housing 12 rotations.
In Fig. 4, also show the vertical view that the engaging means 11 from Fig. 1 and 2 is observed to contact disc 24.
The vertical pivot 65 rotations design symmetrically of contact disc 24 and bimetallic rotating sheet 22 shown in Figure 3.Contact-making surface 29 is positioned on the surface 72 of fixing contact around vertical pivot 65 ground, this contact-making surface on periphery be sealing and therefore be designed to ring surface.The contact area that surface 72 is designed to conduct electricity through suitable coating compounds or processing on its full annular face; When two fixing contacts 31 among Fig. 1 and 32 or Fig. 2 in two fixing contacts 53 and 54 when being arranged in the reclining of contact-making surface, this contact area with two fixing contacts 31 among Fig. 1 with 32 perhaps with two fixing contacts 53 among Fig. 2 and 54 electrical connections each other.
If around vertical pivot 65 rotations, this rotating tee is crossed rivet 23 and also is delivered on the contact disc 24 at least in part in the switch process for bimetallic rotating sheet 22 and/or spring rotating sheet 21, thereby makes this contact disc also in the switch process, rotate around vertical pivot 65.This has caused always having the zones of different and fixing butt contact 31,32 of contact-making surface 29; 53,54 contacts.
At fixing contact 31,32; 53,54 and contact-making surface 29 between contact resistance
Figure BDA0000146007700000091
bring up to before the terminal point that switch 10,40 arrives its useful life, realized the number of times of the switch process of obvious raising by this way.
In Fig. 5, simplify greatly in another embodiment and partly show the bimetallic rotating sheet 22 that on 360 °, launches and the shoulder 28 of lower component 14.The edge 27 of bimetallic rotating sheet 22 is smooth, and shoulder 28 is furnished with the uneven body 74 in its ring surface 73 raisings, and this injustice body has at the supporting surface 75 that upwards raises gradually in its week.Uneven body 74 is along 340 °, i.e. almost 360 ° neighboring area 81 extensions.
In Fig. 6, show view as shown in Figure 5 In yet another embodiment, the edge 27 and the shoulder 28 of bimetallic rotating sheet 22 all is furnished with the uneven body 76,77 that is provided with on the ground that upwards distributes in week in a large number.The quantity of uneven body 76 can be identical with the quantity of uneven body 77, but this also is not desirable not necessarily and under many circumstances.
Uneven body is (like uneven body 64) the uneven body 78 that can also be designed to be recessed into replacedly, and it has the supporting surface 79 that upwards below ring surface 73, descends in week gradually.This embodiment is shown in Fig. 7.Uneven body here also extends along 340 ° neighboring area 81 (angular regions that promptly almost makes progress in 360 ° week).Certainly, neighboring area 81 can also select less than 340 °, such as 180 ° or 270 °.
Uneven body 74,78 can design on the edge 27 of bimetallic rotating sheet 22 equally well, and wherein, shoulder 28 just has smooth ring surface 73 fully.
In each switch process, uneven body 74,76,77,78 as uneven body 63, effect 64 make bimetallic rotating sheet 22 rotate with respect to shoulder 28 a little making progress in week.In this rotation, contact disc is as stated along with rotation.

Claims (15)

1. temperature detect switch (TDS) has the engaging means (11) of the temperature control of the circular rotating sheet (21,22) of band; The housing (12 that holds said engaging means (11); 41), said housing has a lower component (12; 42) and a upper-part (15; 45); Two at said upper-part (15; 45) side (37 sets within it on; 55) the fixing contact (31,32 on; 53,54), each contact in two contacts and outside terminal (35,36 corresponding to said each contact; 56,57) connect; And the current delivery sections (24) that is arranged on that said rotating sheet (21,22) is gone up and moves by said rotating sheet; Wherein, Said rotating sheet (21,22) is supported on the supporting surface (28,66,67,73) in the said switch (10,40) with its edge (27,19), in order to said current delivery sections (24) is pressed into and two fixing contacts (31,32 according to temperature; 53,54) recline and/or from two fixing contacts (31,32; 53, lift 54); It is characterized in that; Go up at the edge (19,27) of said rotating sheet (21,22) and/or at least one uneven body (63,64,74,76,77,78) is being set on the supporting surface (28,66,67,73) at said edge (19,27); Its mode is that said rotating sheet (21,22) rotates around its vertical pivot (65) in each switch process.
2. switch as claimed in claim 1; It is characterized in that; Said rotating sheet (21,22) is bimetallic rotating sheet (22), and it mechanically is connected with said current delivery sections (24) and said current delivery sections is pressed to said fixing contact (31,32 at it below the switching temperature; 53,54) and its more than switching temperature from said fixing contact (31,32; 53, lift 54).
3. according to claim 1 or claim 2 switch is characterized in that said rotating sheet (21,22) is spring rotating sheet (21), and the said current delivery sections of its pretension (24) is used to cling to said fixing contact (31,32; 53,54), bimetallic rotating sheet (22) is set in addition, its with said current delivery sections (24) its more than switching temperature from said fixing contact (31,32; 53, lift 54).
4. switch as claimed in claim 3 is characterized in that, said spring rotating sheet (21) is arranged between current delivery sections (24) and the bimetallic rotating sheet (22).
5. like each described switch in the claim 1 to 4, it is characterized in that, the contact disc (24) that said current delivery sections is a circular, its at it towards said fixing contact (31,32; 53, be furnished with on the surface 54) (72) at upwards closed contact-making surface (29) of week.
6. like each described switch in the claim 1 to 5; It is characterized in that; Said upper-part (15) is penetrated by two rivets (33,34), and the epicranium that is positioned at inside of said rivet is positioned at outside epicranium as outside terminal (35,36) with contact (31,32) that fixes and said rivet.
7. like each described switch in the claim 1 to 5; It is characterized in that; On said upper-part (45), be cast with two connection electrode (51,52), a fixing contact in each connection electrode in said two connection electrode and the fixing contact (53,54) and an outside terminal in the outside terminal (56,57) are connected.
8. switch as claimed in claim 7 is characterized in that, each connection electrode (51,52) all is smooth metalwork, preferably forms with said metalwork at sidepiece each outside terminal (56,57) from said upper-part (45) overtoping.
9. like each described switch in the claim 1 to 8; It is characterized in that; Said uneven body (63,64,74,76,77,78) comprises the convexity (63) of design on the edge (19,27) of said rotating sheet (21,22), said convexity from said edge the smooth ring surface (68) of (19,27) outstanding.
10. like each described switch in the claim 1 to 8; It is characterized in that; Said uneven body (63,64,74,76,77,78) comprises the depression (64) of design on the edge (19,27) of said rotating sheet (21,22), and said depression is recessed with respect to the smooth ring surface (68) of said edge (27).
11. like each described switch in the claim 1 to 10; It is characterized in that; Said uneven body (63,64,74,76,77,78) is included in to the supporting surface (28,66,67,73) at the edge (19,27) of said rotating sheet (21,22) and goes up the convexity (74) that forms, and said convexity (74) is outstanding from the ring surface (73) of said supporting surface (28,66,67,73).
12. like each described switch in the claim 1 to 11; It is characterized in that; Said uneven body (63,64,74,76,77,78) is included in to the supporting surface (28,66,67,73) at the edge (19,27) of said rotating sheet (21,22) and goes up the depression (78) that forms, and said depression is recessed with respect to the ring surface (73) of said supporting surface (28,66).
13., it is characterized in that said uneven body (63,64) is gone up in angular regions (69,71) 45 ° to 90 °, on the periphery and extended like each described switch in the claim 1 to 12.
14., it is characterized in that said uneven body (74,78) is gone up extension in the neighboring area (81) greater than 180 ° like each described switch in the claim 1 to 12.
15. switch as claimed in claim 13 is characterized in that, said uneven body (74,78) is included in periphery and goes up the supporting surface (75,79) that rises or descend.
CN201210078598.7A 2011-03-25 2012-03-22 Temperature-dependent circuit with power transmission element Expired - Fee Related CN102693869B (en)

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