CN1200194A - Improvement for thermal controls apparatus - Google Patents

Improvement for thermal controls apparatus Download PDF

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Publication number
CN1200194A
CN1200194A CN 96197772 CN96197772A CN1200194A CN 1200194 A CN1200194 A CN 1200194A CN 96197772 CN96197772 CN 96197772 CN 96197772 A CN96197772 A CN 96197772A CN 1200194 A CN1200194 A CN 1200194A
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CN
China
Prior art keywords
control device
heat transfer
liquid heating
heat
adhesive tape
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Pending
Application number
CN 96197772
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Chinese (zh)
Inventor
R·A·奥内尔
K·E·约翰
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Otter Controls Ltd
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Otter Controls Ltd
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Publication date
Application filed by Otter Controls Ltd filed Critical Otter Controls Ltd
Publication of CN1200194A publication Critical patent/CN1200194A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202Switches
    • H05B1/0213Switches using bimetallic elements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/04Bases; Housings; Mountings
    • H01H37/043Mountings on controlled apparatus
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00Thermally-actuated switches
    • H01H37/02Details
    • H01H37/32Thermally-sensitive members
    • H01H37/34Means for transmitting heat thereto, e.g. capsule remote from contact member
    • 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

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

Abstract

Thermal controls for electric kettles and the like commonly have a bimetallic switch-operating element (108) juxtaposed in heat transfer relationship with the heating element (222) of the kettle, and a heat sink compound in grease or paste form is commonly introduced between the bimetallic element and the heating element. The heat sink compound is relatively costly and is messy and difficult to apply with precision in an automatic manufacturing process. To overcome these problems which have plagued the industry for many years, the present invention proposes to use a pad or patch of self-adhesive heat transfer tape (130) rather than the heat sink compound, such heat transfer tapes previously having been used only in the electronics industry for heat sinking of power transistors and the like.

Description

The improvement of relevant thermal controls apparatus
Invention field
The present invention relates to the improvement of thermal controls apparatus, and especially for the heating vessel that is provided with electric energy, as kettle, water pot, pot, pan, urn, laboratory and industrial equipment, and the improvement of the thermal controls apparatus of similar devices.
Background of invention
For the electric heating element of insulating pot, hot-water cylinder and similar appliances configuration thermal controls apparatus is well-known, this control device role is to prevent that such result from appearring in heating element and utensil, promptly make utensil be in "on" position owing to careless, and in utensil, do not have enough liquid, or dryouied.Adopting bimetallic element in this control device is well-known as thermally responsive actuator too, and this bimetallic element normally is designed to open one group of electric contact, thereby according to a superheat state of sensing heating element and its power supply is disengaged.Adopt bimetallic element to be disclosed among British patent file GB1401954, GB1470366, GB2117568, GB2176055, GB2194099 and the international patent document WO92/16003 as the typical thermal controls apparatus of switch actuator.
For solving the problem that plays lonely and contact erosion between the switch contact that when the switch contact opening speed is slow, is taken place, developed the quick-action bimetallic element.The many dissimilar of quick-action bimetallic element have been well-known, but the characteristics of all these types generally all are to have a disk-like structure, and it can move to the form of quick-action in the sweep relative with it.But this disk-like structure has produced the problem that heat is delivered to effectively the bimetallic element aspect from heating element, and in order to solve this difficult problem, the part that commonplace is to heating element, or the plate of heating element more precisely, warp architecture with the bimetallic element shape complementarity is provided, so that heating element and bimetallic element can nest together with thermo-contact state preferably, this structure is disclosed among the British patent file GB2176055 as an example.To this, can think with this heating element structure commonly used for referencial use in the reference example of the heating element head plate that relates in the back, heating element main body wherein, that is when heating element is switched on, will generate heat that part of, be mounted within the plate, this plate plays the heating element erecting device in container.The heating element main body generally is the triumphant dress lead of a tubulose winding arrangement, be encapsulated in the tubular sheath with mineral insulating material, and have a so-called hot returning part usually, it is attached to the wet side of heating element head plate, that is to say with a side that the institute heated liquid contacts on, this hot returning part has such position at the opposite side of heating element head plate (promptly doing side), and its temperature is near the temperature of heating element main body, and bimetallic element is promptly in the temperature of this location sensitive heating element.
Except the structure that makes heating element head plate with the disk-like structure of quick-action bimetallic element is consistent, also adopt heat absorbent as the heat transfer medium between heating element head plate and the bimetallic element usually.This heat transfer agent is a kind of special fat, and is normally silica-based, and it has in order to strengthen the filler special of its thermal conductivity.This heat transfer agent cost is higher and be difficult to handle economically or automatically.In case be difficult to after being applied with remove, and after after a while along with the oil in the grease is slowly killed, lose the tendency of its efficient in addition.This material must be applied with when heating element fits together with its bimetallic protection control device; this means that the work that applies heat absorbent will fall on manufacturer's head of insulating pot, hot-water cylinder and similar appliances, its task is that heating element and control device thereof are assembled on the container body.Utensil manufacturer does not generally possess heat absorbent is put on the technical ability of optimum position with optimised quantity, and this performance that will cause the excessive use of heat absorbent and can destroy the element protection control device.
The purpose and the summary of invention
Main purpose of the present invention is to make the use of following the grease heat absorbent and the problems referred to above that produce is resolved or be that substantial minimizing is arranged at least.
The present invention is intended to solve above-mentioned following and uses the grease type heat absorbent and have problems, it is interior existing many years that this problem is present in the industry, never have any solution before this, now the method that adopts is with the self-adhesion adhesive tape that conducts heat, and for example in electronics industry electronic component is assembled into and is commonly used to replace the grease heat absorbent on the heat abstractor.
Therefore, according to an aspect of the present invention, a kind ofly adopted with liquid heating and put and the control device of liquid heating that is the bimetal release actuation element of heat transfer relation with it also comprises a heat transfer adhesive tape, it adheres in use on the surface (outer surface) of the bimetallic element of liquid heating.
The present invention also expands to and is provided with above-mentioned control device and that piece heat transfer adhesive tape is the surface that is interposed in heater, and is special but be not only liquid heating between the outer surface of bimetal release actuation element of the dried side of a plate of electrical heating elements of this heater and control device.
Moreover the present invention also expands to above-mentioned control device of assembling or the above-mentioned method that provides the heater of such control device, and this method comprises the step of a heat transfer adhesive tape sticking to the outer surface of the bimetal release actuation element of control device.
As everyone knows, in the thermal controls apparatus of liquid heating, the bimetal release actuation element of control device is installed in for example the heat conduction mounting panel or the cover plate back of aluminum, and such control device is disclosed among the international patent document WO92/16003.Further according to the present invention, the heat transfer adhesive tape that provides as just having mentioned is provided a kind of improved form of above-mentioned control device, liquid heating and assemble method, it sticks on a kind of like this bimetallic element of control device, to strengthen the heat transmission to bimetallic element from mounting panel.Perhaps, such adhesive tape can stick on the outer surface of mounting panel, that is to say, in use on the surface of the mounting panel of liquid heating.
Although preferably the heat transfer adhesive tape is sticked on the bimetallic element of control device as just discussing and/or on the mounting panel of this control device, but replace the surface of heat transfer adhesive tape sticking in liquid heating, special but be not only the dried side of a plate that pastes the electrical heating elements of this heater also be possible, its position is for can strengthen effectively from the heat transfer part of this heater to the bimetallic element of control device.The present invention also expands to this improvement, although it seems that now this improvement is not best, give utensil manufacturer because it will assemble the responsibility of heat transfer adhesive tape piece, and they thinks preferably there is not this work.With being used for that the automatic producing device of the used bimetallic control device of production liquid heating is transformed on the outer surface that a heat transfer automatic adhesive tape application can be attached to bimetallic element is a simple relatively thing.The control device that is stained with the adhesive tape piece then is transported to utensil manufacturer place, and they are assembled into it on utensil subsequently, and need not the transfer greases of annotating.
As mentioned above, the heat transfer adhesive tape is easy to obtain, and has been used for before this electronic component, and for example power transistor is assembled on its radiator.It can cut into control device in used bimetallic element structure shape adapting.The heat transfer adhesive tape has a series of thickness specifications, is the simple thing of part and select the suitable adhesive tape thickness that is fit to special-purpose for use.Suitable heat transfer adhesive tape can obtain from the Warch international corporation of the eastern Grinstead of England Sussex, and its product comprises Zemrex TMHeat-transfer matcrial contains 99% carbon in the finished product, and pyroconductivity is near the silicone oil pyroconductivity; Or obtain from the Chomerics European Company of the Marlow of England Buckinghamshire, its product comprises Cho-Therm TMSeries heat transfer electric insulation rubber insulator, it is the silicone rubber material that is filled with boron nitride or aluminium oxide or ceramic particle and strengthens with glass fabric.
The present invention is special, but not merely, is applicable to the X1 control device that we produce, this control device substantially as among the British patent file GB2194099 particularly with reference to as described in its accompanying drawing Fig. 3 A, 3B and the 3C.One embodiment of the present of invention promptly are such X1 control device, and it has a Zemrex that thickness is suitable TMThe heat transfer adhesive tape sticking is on the outer surface of the bimetallic element of this control device.This and other embodiment of the present invention will consult accompanying drawing and after this be described in detail.
Brief description of drawings
Figure 1A and 1B are the part exploded perspective views of a kind of X1 control device of more intactly describing among the above-mentioned British patent file GB2194099;
Fig. 2 is the Figure 1A that more intactly describes among the British patent file GB2283156 and the part exploded perspective view of a kind of improved form of 1B control device;
Fig. 3 is the schematic side elevational sectional view that Fig. 2 control device is assembled with a plate shaped electrical heating elements.
The detailed description of embodiment
Referring to Figure 1A and 1B, will carry out brief description to the structure and the operation of the element protection of X1 shown in it control device now, be appreciated that more complete explanation can be with reference to British patent file GB2194099.Shown element protection device comprise assembly 20 (this with in Figure 1A and 1B will with British patent file GB2194099 in used identical reference number represent same part); it comprises can decrease support 21, bimetal blade 22 and push rod 23, and this assembly 20 is suitable for being arranged in the use of element protection device between the outside of interior moulded parts 25 of the back side of heating element head 24 and element protection device.Should be suitable for cooperatively interacting by interior moulded parts 25 with main moulded parts 26, the latter has a socket 27 that is used for kettle attachment plug, thereby in the control device that assembles, form a chamber, be used to hold L, the N of control device and the terminals plug 28,29 and 30 of E, and the live wire (L) that is used for the accommodating belt contact live wire sheet spring 32, the center line (N) that connect spring 31, contact-carrying connects spring 33 and is connected spring 34 with ground wire (E).
Interior moulded parts 25 is suitable for mounting board on main moulded parts 26, and a pair of Spring Card Unitarily molded with it 36 arranged, this Spring Card cooperates with pair of holes 37 on the main moulded parts, and moulded parts 25 is assemblied in the import of main moulded parts 26 reliably in making, and firmly is fixed therein by clamp 36.On the inner surface of interior moulded parts 25, be formed with bossing (being visible face among Fig. 4 A), match with the structure that is provided on the face relative of main moulded parts 26 (being visible face among Fig. 4 B) with it, with L, the terminals plug 28 of N and E, 29 and 30 are securely fixed in the control device that assembles, pass the corresponding hole that this plug is provided in the socket 27 of main moulded parts 26, when interior moulded parts 25 and main moulded parts 26 are assembled into a time-out, live wire connects spring 31, live wire sheet spring 32 and center line connect spring 33 and are installed between interior moulded parts 25 and the main moulded parts 26 with similar form.When the element protection device assembled fully and be attached on the element head, ground wire connected spring 34 and is suitable for being fixed on the ledge 41 that is provided on the element head 24, is within the element protection device, contacts with ground wire terminals plug 30.
Now especially referring to assembly 20, bimetal blade 22 is rectangular substantially, have a center cut 42 that is roughly the X-shaped structure, and be concave, thereby can between two opposite concave structures, move in the quick-action mode, the operational motion that this X-shaped otch 42 has guaranteed place, bimetallic centre in fact than common concave blade can provide greatly.Bimetal blade 22 by means of push rod 23 not only with the center cut 42 of blade 22 but also and can decrease support 21 engaging of the two and be fixed in the assembly 20, push rod 23 is suitable for from Figure 1A a visible side and inserts in the guide channel 45 that is formed on the support 21, but can not pass completely through this guide channel 45, and it has a nose, is suitable for being bonded on the center of the otch 42 on the bimetal blade 22.As understandable, the other end of push rod 23, promptly the promote-side depends on that with respect to the position of support 21 bimetallic 22 itself is to be in hot or cold conditions.
Support 21 is the shape of one four leg table generally, and has bigger leg 46, and purpose is when the element protection device that assembles is fixed on the element head, and guaranteeing has good thermo-contact with the rear end face of heating element head 24.The bight of bimetal blade 22 is seated on the termination of four legs 47 of support, and is concordant with the bottom surface of leg 46.Be provided with a pair of location notch 48 on support 21, and be provided with a pair of protruding rail 49 on the outer surface of interior moulded parts 25, they are suitable for and groove 48 slip joint.Shown in Figure 1A, surface thereon, support 21 has four outstanding pillars, in the hole 50 that is provided with on the moulded parts 25 in being designed to extend into, two ramuscule posts 51 and two big pillars 52 and 53 is arranged.
When as described element protection device fits together and is assembled on the element head 24 of electric hot water container for example; hole 56 and 57 in the cold junction 54 and 55 of heating element (being the terminal of heating element main body) extends through and is arranged on the moulded parts; and be connected spring 31 is connected spring 33 with center line upper end respectively contacts with live wire; in order to adapt to this contact, spring 31 and 33 upper end are arcs as shown in the figure.The cold junction of heating element can be at tip point with the silver soldering agent or curling ferrule termination is set, to guarantee itself and being connected of sheet spring.The lower end that live wire connects spring 31 extends across the hole of interior moulded parts 25, and a contact is arranged, " activity " contact of the set of switch contacts of this composed component protective device on it.These lower limb that live wire connects spring 31 are arranged to connect mutually with the promote-side of push rod 23, thereby make armature contact motion from its normal " cold " attitude to the conversion of its " heat " attitude according to bimetal blade 22.
When interior moulded parts 25 and main moulded parts 26 fit together, live wire sheet spring 32 is between the two, and has a more solid the first arm 58, hole 50 in it extends across and is formed on the moulded parts 25, and contact with the big pillar 52 that stretches out on support 21 and be partial to main moulded parts 26 by its compressing away from interior moulded parts 25, pillar 52 is biased to live wire plug 28 arm 58 of live wire sheet spring 32 and contacts.Live wire sheet spring 32 also has second a not too solid arm 59, hole 50 in it extends across on the moulded parts 25, and at its free end one contact is arranged, this point is connected " activity " contact that is provided with on the spring 31 and cooperates with live wire, constitute " fixing " contact of set of switch contacts.Second arm 59 of live wire sheet spring 32 be arranged to support 21 on the contacting bottom of two ramuscule posts 51 being provided with, this pillar passes hole 50.This contact between the arm 59 of lower posts 51 and live wire sheet spring 32, determined on the live wire sheet spring 31 contact (" fixing " contact of set of switch contacts) with respect to support and and then with respect to the position of push rod, bimetal blade and element head, and set up " fixing " contact with respect to element head, and with the irrelevant position relation of the change in size of element head.
With similar form, center line connects spring 33 and is between the moulded parts 25 and 26 that assembles, and a solid relatively arm 60 is arranged, and it passes hole 50, and is subjected to the pressing of upper supporting column 53 of support 21 and contacts with center line plug 29.
Element protection device as described is in when operation, and the element head that is in superheat state makes bimetallic 22 quick-actions to its hot structure usually, thereby the armature contact that live wire is connected on the spring 31 is pushed away fixed contact on the live wire sheet spring 32 by push rod 23.Under improper superheat state; this situation may appear when for example switch contact itself was welded together; when the temperature of element head reaches high like this level; it is promptly high that when element head bends, second protected mode will start because its leg is in that live wire is connected with center line that the spring section 58 of spring 32 and 33 and 60 pressure descend the generation thermal deformation to making support 21.As what more completely illustrate in British patent file GB2194099, support 21 makes sheet spring 58 and 60 motions to the bending of element head, thereby being connected of heating element and its power supply cut off in the contact of disengaging and live wire and neutral terminal plug 28 and 29.
When adopting the X1 control of Figure 1A and 1B, before this, giving the front end face of bimetal blade 22 and/or applying a spot of silicone oil heat absorbent for the rear end face of element head 24 has been tradition.But according to the present invention, a self-adhesion heat transfer adhesive tape 200 pastes on the bimetallic front end face, this adhesive tape piece is cut into and is fit to bimetallic shape and has as shown in the figure interior otch 201, it with bimetallic for example on substantially the otch 42 of X-shaped be complementary, or extend around otch 42 substantially, do not limit bimetallic motion to guarantee this adhesive tape.Although very little, because the bonding agent on the adhesive tape shows the obstruction to conducting heat, thus the adhesive tape piece 100 that covers whole surface preferably is not provided, and replace the band or the point of high concentration.
Traditional electrical heating elements is to be used for insulating pot, hot-water cylinder or similar appliances the most frequently, they comprise the wire winding stratie that is in the tubular metal sheath and encapsulates around stratie with the insulation mineral material in this sheath, at the same time, plate shaped electrical heating elements also is widely known by the people, and the present invention also can be applicable to this plate shape element.So plate shaped electrical heating elements comprises the heating element of casting or be pinned at the band sheath in the aluminium casting as mentioned above, and aluminium casting itself can constitute plate shaped heating element, or is fixed to earlier and then reconstructs the tabular heating element on the stainless sheet steel.The another kind of form of tabular heating element is recorded and narrated in British patent file GB2283156, it generally comprises a stratie with certain pattern form, this element is with for example lithography technique or the photolithographic techniques of well-known employing conduction trace in semiconductor device manufacturing field, and/or the flame jet of other deposition technique such as metal, plasma evaporation etc. are formed on the electrical insulating substrate, and these itself also are well-known.More specifically, comprise at the plate shaped heating element described in the British patent file GB2283156 and the stainless sheet steel of the upper surface of a composed component be provided with skim glass or other heat insulation electrical insulating material at its downside.Stratie itself is formed on the surface of glassy layer by for example utilizing the printing of conduction trace, and another thin layer of glass or other heat insulation electrical insulating material are arranged on the element that prints.
Consulting in the accompanying drawing Fig. 2 and Fig. 3 below described is another embodiment of the present invention, and it comprises and is suitable for the element protection control device that is used in combination with plate shaped heating element described in the British patent file GB2283156.
Referring to Fig. 2, the element protection control device shown in it is a kind of improved form of previously described X1 control device.Shown element protection control device comprises the first and second plastic moulding main elements 101 and 102, they be suitable for being assembled together and with first and second binding posts 103 and 104 and spring metal conductor 105,106 and 107 be fixed on therebetween.Opposite side at main element 102, be provided with a bimetallic primary switch actuating device 108, it is suitable for to be installed on the plastic stent 109 with the similar mode of X1 control device described in the British patent file GB2194099, and this support is positioned on the front surface (invisible) of main element 102 subsequently in a predefined manner.
This bimetallic primary switch actuating device 108 is arranged as to determine to be provided with a push rod 112 by the parts 110 of spring metal conductor 105 and 106 and the state of 111 switches that constituted with essentially identical mode described in the British patent file GB2194099 for this reason.Normal condition lower member 110 and 111 is each other and electrically contacts, and is then pushed open by push rod 112 when bimetallic primary switch actuating device 108 is in use made a response according to the superheat state of element.No matter lost efficacy at this primary switch actuating device because of any reason, so that between can not opening feature 110 and 111 under the situation of contact, heating element will continue energising, and its temperature will continue to raise, and begin to play effectiveness until the secondary thermal response actuating device that is made of plastic stent 109.Support 109 has the projection 113 and 114 towards the back side, they are designed to extend through main element 102 and contact with the parts 115 and 116 of spring metal conductor 105 and 107, therefore effectively connect with a plate shaped heating element and support 109 when being pressed to main element 102 backward when this control device,, the compressing that spring metal parts 115 and 116 are subjected to projection 113 and 114 contacts with binding post 103 and 104 respectively.Support 109 has the leg 117 of four band legs 118, each leg is seated on the back side of relevant heating element, when the temperature of element is elevated to the level that makes leg 117 fusings, support 109 disengages conductor part 115 and 116 binding posts 103 and 104 final and control device because the spring action of conductor part 115 and 116 is collapsed towards heating element forward.
The element protection control device of Fig. 2 is suitable for and is roughly plate shaped heating element being used; and as can be seen; spring metal conductor 106 and 107 has the projection 119 and 120 of extending forward; they are suitable for stretching to forward the main element 102 of control device; and electrically contact with the terminal portion formation of plate shaped heating element, provide electric energy for it by control device.Bimetal blade 108 is suitable for being fixed to heating element and is thermo-contact closely, a self-adhesion heat transfer adhesive tape 130 that schematically shows sticks on as embodiment among Figure 1A and the 1B on the bimetallic front surface, adhesive tape 130 have with bimetallic on the otch 131 that is complementary of otch.
Consult Fig. 3 now, this figure has provided the side cross-sectional, view that can use the canonical form of the plate shaped heating element of control device among Fig. 2.This plate shaped heating element comprises a stainless steel-based end or base plate 220, the heart partly is formed with first electric insulation layer 221 of glass therein, then cover on the heating track 222 and first glassy layer 221 at heating track 222, the second electrical insulation glass layers 223 that are formed with conduction trace formation on the glassy layer 221.Second glassy layer 223 is provided with opening or window 224, thereby the heating track 222 below the opening is come out, opening 224 is sized to the elementary actuating device of the bimetallic that makes the control device shown in Fig. 2 108 and can directly makes a response according to the temperature of heating track 222, and a leg 118 of support 109 is positioned on the outer back side around the glass of opening.Terminals part corresponding to heating track 222 is provided with some opening (not shown) on second glassy layer 223 in addition, these aperture arrangement become when control device and heating element effectively are assembled together, and contact with the preceding male part 119 and 120 of control device spring conductor 106 and 107.These additional openings of just having mentioned have illustrated in conjunction with some other of plate shaped heating element in these characteristics of not doing explanation in British patent file GB2283156.
In the operation of the described plate shaped heating element that has a described element protection control device; owing to used heat transfer adhesive tape piece 130; and the heating track of elementary actuating device of the bimetallic that makes control device and element is the good heat transfer relation, and this fact has guaranteed the fast reaction of control device to the element over-temperature state.Simultaneously, by making second protective device, can decrease support 109; heat insulation with heating track 222; guaranteed the thermal spike that primary operation normal and control device accompanies, that is the dynamic temperature rise that after elementary protection operation, often occurs, the action of second class protection can not caused.The elementary actuating device of bimetallic contacts with the close thermal of heating track, has also guaranteed to realize the shortening of elementary protection response time, and this makes thermal peak reduce again.These characteristics are that the selection of support 109 suitable material is provided convenience.If adopted suitable adhesive tape composition, heat transfer adhesive tape 130 can also additionally be brought into play the function that makes electric insulation between bimetallic 108 and the heating track 222.
Process to the explanation that the present invention did, is appreciated that under not deviating from the situation of listing in the spirit and scope of the invention in the claims it is possible doing some improvement and variation with reference to particular instance.For example, although the present invention is the explanation of carrying out in conjunction with the application of bimetallic control device in heating vessel, some other application of the present invention also is possible, for example is used to be used in combination the control device of PTCR (resistance positive temperature coefficient) element.

Claims (10)

1. use the heat transfer adhesive tape, rather than the heat absorbent of grease-like or pasty state form, strengthen the heat-transfer capability between the thermal controls apparatus of a device and this device.
2. control device that is used for liquid heating, above-mentioned control device comprises a bimetallic element, it and this liquid heating are arranged in juxtaposition and are heat transfer relation with it, and a slice or heat transfer adhesive tape sticking are arranged in use on that surface of the bimetallic element of liquid heating.
3. control device that is used for liquid heating, above-mentioned control device comprises a bimetallic element, it and a mounting panel or cover plate positioned adjacent, be arranged in juxtaposition with liquid heating more successively and be heat transfer relation with it, and have a slice or heat transfer adhesive tape sticking at mounting panel or cover plate in use on that surface of liquid heating, and/or be interposed between bimetallic element and mounting panel or the cover plate.
4. liquid heating that is provided with as claim 2 or 3 described control device.
5. liquid heating that is provided with following control device, this control device has been used in combination the heat sensor that is heat transfer relation with a surface of this heater, and is provided with a slice or a heat transfer adhesive tape between the above-mentioned surface of heat sensor and this heater.
6. liquid heating as claimed in claim 5, wherein, that sheet or that piece heat transfer adhesive tape sticking are on the surface of heat sensor.
7. liquid heating as claimed in claim 5, wherein, that sheet or that piece heat transfer adhesive tape sticking are on the surface of this heater.
8. one kind as the described liquid heating of arbitrary money in the claim 5 to 7, and wherein, above-mentioned heat sensor comprises a bimetallic element.
9. one kind as the described liquid heating of arbitrary money in the claim 4 to 8, and wherein, this control device is to arrange like this, and a plate of the electrical heating elements of heat sensor and this heater is effectively and is arranged in juxtaposition.
10. one kind is assembled into method on the liquid heating with thermally responsive control means, and the step of said method comprises: with a slice or heat transfer adhesive tape sticking to the surface of the thermal response transducer of control device this heater arranged side by side on and/or paste and be subjected to passing on the surface of the control device of the heat of liquid heating conduction and/or transducer.
CN 96197772 1995-08-21 1996-08-21 Improvement for thermal controls apparatus Pending CN1200194A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9517094.0 1995-08-21
GB9517094A GB2304468B (en) 1995-08-21 1995-08-21 Improvements relating to thermal controls

Publications (1)

Publication Number Publication Date
CN1200194A true CN1200194A (en) 1998-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96197772 Pending CN1200194A (en) 1995-08-21 1996-08-21 Improvement for thermal controls apparatus

Country Status (7)

Country Link
EP (1) EP0846329B1 (en)
CN (1) CN1200194A (en)
AU (1) AU6826696A (en)
DE (1) DE69607630T2 (en)
GB (1) GB2304468B (en)
HK (1) HK1001850A1 (en)
WO (1) WO1997007319A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102119831A (en) * 2011-01-27 2011-07-13 广东新宝电器股份有限公司 Electric kettle

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GB2304468B (en) 1997-08-06
GB2304468A (en) 1997-03-19
AU6826696A (en) 1997-03-12
DE69607630T2 (en) 2000-07-27
WO1997007319A1 (en) 1997-02-27
DE69607630D1 (en) 2000-05-11
GB9517094D0 (en) 1995-10-25
EP0846329A1 (en) 1998-06-10
HK1001850A1 (en) 1998-07-10
EP0846329B1 (en) 2000-04-05

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