CN1165991A - Mechanical temp. controller - Google Patents
Mechanical temp. controller Download PDFInfo
- Publication number
- CN1165991A CN1165991A CN 95120045 CN95120045A CN1165991A CN 1165991 A CN1165991 A CN 1165991A CN 95120045 CN95120045 CN 95120045 CN 95120045 A CN95120045 A CN 95120045A CN 1165991 A CN1165991 A CN 1165991A
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- China
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- bimetallic strip
- contact
- mechanical thermostat
- magnet piece
- reed
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Abstract
An improved mechanical temp controller is a double-control one which uses bimetal and an additional pair of magnets, and is composed of insulating base plate, contact pair and bimetal. The moving contact installed on reed is controlled by globe cased bimetal A regulating mechanism on the block where bimetal is fixed to can be used to regulate the temp control range. It can be used in electrothermal temp control field or presetting control of automatic heating liquid, and features small size and high efficiency.
Description
The present invention relates to electric switch, specifically a kind of is the gauge tap device of sensitive element and executive component with the bimetallic strip.
Existing bimetal strip thermostat kind is a lot, and it is simple in structure, but can't adjust working range, and the technical parameter value dispersion of product is big.As bimetallic strip is the automatic temperature control switch of spherical shell panel-shaped, when environment temperature reaches its counter-rotating take-off temperature, and action immediately, impact the contact reed, choose out the contact, the disconnecting circuit path, but can't adjust the temperature range of switch work, therefore, the welding error of bimetallic strip all will be reflected to the technical parameter index, in such cases, guarantee the specification of dispatching from the factory that product is unified, usually tackle with screening stepping way, and this way is not a good plan.Can solve with following method through this problem of trying all possible means, promptly apply the work response temperature that a power changes bimetallic strip at the root position of bimetallic strip welding.Pre-tension can be realized by a pressure adjustment assembly.Facts have proved it is feasible.
The objective of the invention is to provide a kind of mechanical thermostat and a kind of double control-type mechanical thermostat that has governor motion, the latter can give and puts condition precedent the control apparatus contact duty of switching on, and promptly increases one-level control; They can control its corresponding switch working temperature by set governor motion, for the normalized production of product with guarantee that the stable of technical parameter brings convenience.
Technical scheme of the present invention is as follows:
Mechanical thermostat comprises that mainly substrate, spherical shell face bimetallic strip, contact are right, reed position and the bimetallic strip of device moving contact to hit a position corresponding, the outer lead of contact is connected with the circuit of external controlled electric appliance, bimetallic strip is fixed on the fixed block, it is characterized in that said fixed block, or the member of its adjacency is provided with the pressure regulating mechanism that acts on bimetallic strip fixed position end.Said governor motion is presser type mechanism or seesaw type mechanism.Said spherical shell face bimetallic strip, its front projection are cydariform or long ellipse garden shape.
The double control-type mechanical thermostat, comprise that mainly substrate, spherical shell face bimetallic strip, contact are to, reed that drives the contact, its position and bimetallic strip to hit a position corresponding, the outer lead of contact is connected with the circuit of controlled electric appliance, bimetallic strip is fixed on the fixed block, it is characterized in that the member of fixed block or its adjacency is provided with the pressure regulating mechanism that acts on bimetallic strip fixed position end.In addition, also be provided with magnet piece on the reed of said drive contact, except that lead-in wire, they place in the chamber in the lump.The master control corresponding with magnet piece is located at magnet piece on the bar sheet of its top, the protruding tip overlap joint on end on the bar sheet and the cavity, and the other end is connected with force application apparatus one float of magnet piece.
Said master control comprises that with magnet piece and the attached device that helps thereof force application apparatus is an electromagnet.Be that direct available electromagnet substitutes.
Good effect of the present invention is:
1, owing to increased pressure adjustment assembly, as the presser type governor motion, turn set screw, regulate the fixing end of pressing plate function at bimetallic strip, changed the work structuring parameter of bimetallic strip, it is adjustable that the switch working point of bimetallic strip has been realized, the influence that the welding error causes can obtain to remedy, and working range is also corresponding to be changed to some extent.Can be implemented in 10 ℃ of scopes and regulate, the steady operation precision of switch is≤1 ℃, and this brings great convenience for the normalized production of product.
2, give in the double control-type mechanical thermostat when putting contact triggered force application apparatus and selecting float for use, float carries out condition of work by means of buoyancy to give and putting, be implemented in and give the temperature of carrying out electrical work under the condition of putting and control automatically, can be directly used in anti-do around with constant temperature operation control.Thereby enlarged range of application.Be applicable to the occasion that the dual control of liquid medium is heated.Owing to be provided with regulating device, can guarantee out the consistance of product technical parameter equally, production efficiency is greatly improved.
3, this automatic thermostat, whole apparatus structure is simple, can realize miniaturization, and highly sensitive, working stability is reliable, and is easy to utilize.
Be illustrated below in conjunction with embodiment and accompanying drawing thereof:
Fig. 1 is the structure principle chart of mechanical thermostat of the present invention.
Fig. 2 is the structural representation of double control-type mechanical thermostat of the present invention.
Fig. 3 is the variation structural drawing of Fig. 2 embodiment.
Fig. 4 is the fixed structure chart of cydariform bimetallic strip.
Referring to Fig. 1, be equiped with the reed 2 of conduction on the insulated substrate 1 of mechanical thermostat, its end is provided with moving contact 3, and is corresponding with stationary contact 4, and the lead external of contact is access to controlled electrical appliance circuit.Bimetallic strip 6 is located at below the reed 2, with protruding corresponding under the V-arrangement, and is connected on the fixed block 7.Fixed block 7 is installed on the substrate 1.Be provided with screw hole above it, a block pressur plate or compressing tablet 8 be pressed near the position of bimetallic strip contact, use for regulating the take-off temperature of adjusting bimetallic strip with set screw 9.The 5th, the lug plate of stationary contact.This device can carry out common encapsulation or negative pressure encapsulation, makes miniature device, only stays two pin to draw, and it is quite convenient to use.The scheme of concrete structure design can change, as long as can guarantee that the temperature conduction of bimetallic strip is good, and lead wire insulation between the contact, the motion space is left just in the bimetallic strip next door.
Shown in Figure 2 is an example that is used for liquid warming temperature control occasion.It has increased the magnet of a pair of buoyancy control on the architecture basics of Fig. 1, form two control patterns.There is the oil bath constant temperature oven its application scenario, self-controlled device for boiling water, water heater, and electric kettle, water bottle etc. have anti-dry and autocontrol temperature binomial function.Below by the dynamic course of work in conjunction with its structure is illustrated:
External lead wire 10 is serially connected in the directly-heated type electrothermal tube circuit, and the 11st, the common closed joint that is connected with liquid container.Lead-in wire 10 connects lug plate 5 and reed 2 respectively, forms the loop by moving contact 3, stationary contact 4.The fixed block 7 and bimetallic strip 6 spot welding of being installed on the insulated substrate 1 are fixed together, screw 9 and compressing tablet 8 constitute pressure adjustmenting mechanism and adjust usefulness, the pressure point of compressing tablet 8 is positioned on the position at the outside of solder joint or place, because bimetallic strip is a spherical shell face shape, its end incision pressurized all can play regulating action.Also available pressing plate of compressing tablet 8 or similar seesaw structure replace.The 20th, the stator of stationary contact.After the electrothermal tube energising, fluid temperature in the container rises, surround for liquid around the temperature controller, temperature in heat conduction makes the enclosed cavity 12 of temperature controller raises, bimetallic strip 6 beginning deformation, its spherical shell face shape changing inversely, upset at last, provoke reed 2, make moving contact jump out of stationary contact, disconnecting circuit, electrothermal tube stop heating, then the liquid temperature will descend gradually, arrive a certain low spot, bimetallic strip returns and turns over, and the contact is to contact again, electrothermal tube begins heating again, thereby the liquid temperature is remained in the predetermined temperature change scope.The 21st, the encapsulation bottom surface.If liquid level is crossed low or scarce liquid in the container, then float 19 is sagging in the clamshell among the figure 17, driving bar sheet 14 has a down dip, be located at magnet piece 16 on the bar sheet 14 around the surface of the protruding tip 13 descending contacts of fulcrum at enclosed cavity 12, correspondence is set in place in the magnet piece 15 of the moving contact outer end of reed 2 picks up, moving contact and stationary contact are disengaged, and the circuit that disconnects heating has so just reached the purpose of anti-dry.When liquid measure is enough in the container, the float come-up, the magnet piece 16 of master control lifts, and attractive force reduces to make magnet piece 15 to rebound with spring 2, recovers electrically heated duty.The 18th, the intercommunicating pore on the clamshell.Two control patterns that this device utilizes the constant temperature control of right anti-dry control of magnet piece and bimetallic strip to constitute.Wherein the force mechanism of float is specific, can replace in different ways when being used for other occasions, and for example magnet piece 16 usefulness electromagnet replace.Corresponding contact also can be used multiconductor instead to mode as required to 3,4, comprises normal open and close contact etc., and purposes is more extensive.
Structure shown in Figure 3 changes to some extent, and the situation of working when being applicable to the big current contact of control shifts out the bimetallic strip sensitive element and can improve its work response accuracy and temperature controlled degree of accuracy, avoids the contact influence.Therefore on reed 2, increased by one horizontal connect hit bar 21, its enclosed cavity inside still keeps communicating, the outer liquid that surrounds of passage can improve thermal conduction effect.
The bimetallic strip that Fig. 4 provides is cydariform projection diagram, for spherical shell shape is tabular, the one end with promptly become on-off element after fixed block is connected.If adopt long ellipse garden shape, effect is also similar, but the structure difference, value corresponding is difference slightly.When being used for the normalization batch process, governor motion all should be set.
Claims (5)
1, a kind of mechanical thermostat comprises that mainly substrate (1), spherical shell face bimetallic strip (6), contact are to (3,4); Position and the bimetallic strip (6) of the reed (2) of device moving contact (3) to hit a position corresponding, the outer lead of contact (10) is connected with the circuit of external controlled electric appliance, bimetallic strip (6) is fixed on the fixed block (7), it is characterized in that the member of said fixed block (7) or its adjacency is provided with the pressure regulating mechanism that acts on bimetallic strip (6) fixed position.
2, mechanical thermostat as claimed in claim 1 is characterized in that said governor motion is presser type mechanism or seesaw type mechanism.
3, mechanical thermostat as claimed in claim 1 is characterized in that said spherical shell face bimetallic strip (6), and its front projection is cydariform or long ellipse garden shape.
4, a kind of double control-type mechanical thermostat that comprises claim 1 mechanical thermostat mainly comprises substrate (1), spherical shell face bimetallic strip (6), and the contact is to (3,4); Position and the bimetallic strip (6) of the reed (2) of device moving contact (3) to hit a position corresponding, the outer lead of contact (10) is connected with the controlled electric appliance circuit, bimetallic strip (6) is fixed on the fixed block (7), the member that it is characterized in that fixed block (7) or its adjacency is provided with the pressure regulating mechanism that acts on bimetallic strip, in addition, on the reed (2) that drives contact (3), also be provided with magnet piece (15), except that lead-in wire, they place in the chamber (12) in the lump, the master control corresponding with magnet piece (15) is located on the bar sheet (14) of its top with magnet piece (16), the protruding tip (13) overlap joint of one end of bar sheet (14) and cavity, the other end is connected with force application apparatus one float (19).
5, double control-type mechanical thermostat as claimed in claim 4 is characterized in that said master control with magnet piece (16) and servicing unit thereof, comprises that force application apparatus is an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95120045 CN1165991A (en) | 1995-09-06 | 1995-11-28 | Mechanical temp. controller |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95220598.X | 1995-09-06 | ||
| CN95220598 | 1995-09-06 | ||
| CN 95120045 CN1165991A (en) | 1995-09-06 | 1995-11-28 | Mechanical temp. controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1165991A true CN1165991A (en) | 1997-11-26 |
Family
ID=25743810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95120045 Pending CN1165991A (en) | 1995-09-06 | 1995-11-28 | Mechanical temp. controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1165991A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256513A (en) * | 2015-09-30 | 2016-01-20 | 安徽省宁国市天成科技发展有限公司 | Washing machine automatic heating apparatus |
| CN105817845A (en) * | 2016-05-24 | 2016-08-03 | 中山市川成精密电子有限公司 | Bimetallic strip temperature control element and processing method |
| CN108461351A (en) * | 2018-05-02 | 2018-08-28 | 佛山市欧电器制造厂有限公司 | A kind of high-power controllable temperature controller |
| CN109240363A (en) * | 2018-10-31 | 2019-01-18 | 慈溪市凯达温控器有限公司 | A kind of bimetal chip thermostat with overtemperature protection system |
| CN113150972A (en) * | 2021-02-27 | 2021-07-23 | 蒋建国 | Automatic temperature control device for organic waste biological decomposition |
-
1995
- 1995-11-28 CN CN 95120045 patent/CN1165991A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105256513A (en) * | 2015-09-30 | 2016-01-20 | 安徽省宁国市天成科技发展有限公司 | Washing machine automatic heating apparatus |
| CN105817845A (en) * | 2016-05-24 | 2016-08-03 | 中山市川成精密电子有限公司 | Bimetallic strip temperature control element and processing method |
| CN105817845B (en) * | 2016-05-24 | 2018-10-12 | 中山市川成精密电子有限公司 | Bimetallic strip temperature control element and processing method |
| CN108461351A (en) * | 2018-05-02 | 2018-08-28 | 佛山市欧电器制造厂有限公司 | A kind of high-power controllable temperature controller |
| CN108461351B (en) * | 2018-05-02 | 2024-01-30 | 佛山市欧一电器制造厂有限公司 | High-power controllable temperature controller |
| CN109240363A (en) * | 2018-10-31 | 2019-01-18 | 慈溪市凯达温控器有限公司 | A kind of bimetal chip thermostat with overtemperature protection system |
| CN113150972A (en) * | 2021-02-27 | 2021-07-23 | 蒋建国 | Automatic temperature control device for organic waste biological decomposition |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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