CN105047475A - Composite magnetic tube and thermosensitive magnetic control switch - Google Patents
Composite magnetic tube and thermosensitive magnetic control switch Download PDFInfo
- Publication number
- CN105047475A CN105047475A CN201510492149.0A CN201510492149A CN105047475A CN 105047475 A CN105047475 A CN 105047475A CN 201510492149 A CN201510492149 A CN 201510492149A CN 105047475 A CN105047475 A CN 105047475A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- temperature
- control switch
- compound magnetic
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention provides a composite magnetic tube and a thermosensitive magnetic control switch. The composite magnetic tube comprises a ferromagnetic metal shell and a permanent magnet, wherein the permanent magnet is arranged in an inner cavity of the ferromagnetic metal shell; and a thermosensitive soft magnet is filled between the ferromagnetic metal shell and the permanent magnet. Compared with an existing temperature controlled switch, the thermosensitive magnetic control switch realized through the composite magnetic tube has the characteristics of simple structure and high control accuracy; and meanwhile, the functions of the thermosensitive magnetic control switch provided by the invention can be set according to the requirements, therefore, the thermosensitive magnetic control switch has the effects of a multi-function switch; and the thermosensitive magnetic control switch provided by the invention can be applied to various occasions, and meets different requirements of users.
Description
Technical field
The present invention relates to temperature sensitive control switch technical field, particularly relate to a kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch.
Background technology
Conventional temperature control device is generally made up of the temperature-sensitive element such as thermistor, bimetal leaf, when this kind of temperature controlling device uses as product, thermosensitive resistance type thermostat need have auxiliary circuit to coordinate the controlling functions that could realize temperature, although bi-metallic laminar kind thermostat can realize temp. control function separately, but it is subject to externally temperature influence, precision is low, and recovery temperature return difference is large, complicated structure, the life-span is low, manufacturing process difficulty is large.And existing temperature controlling device purposes is single, be not suitable for the requirement of present consumer to electrical equipment high-intelligentization and multifunction.
Therefore, prior art needs to improve further.
Summary of the invention
In view of the deficiencies in the prior art, the invention reside in and a kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch are provided, be intended to solve existing temperature detect switch (TDS) precision low, the problem of function singleness.
Technical scheme of the present invention is as follows:
A kind of compound magnetic tube, wherein, described compound magnetic tube comprises ferromagnetic metal housing, the permanent magnet be arranged in ferromagnetic metal housing cavity, temperature-sensitive soft body is filled with between described ferromagnetic metal housing and permanent magnet, described temperature-sensitive soft body is permeability magnetic material, comprise ferrite, alloy material etc.
Described compound magnetic tube, wherein, described ferromagnetic metal housing is the barrel-shaped housing be made up of ferromagnetic metal.
Described compound magnetic tube, wherein, described permanent magnet is column structure and is arranged on ferromagnetic metal housing cavity central authorities.
A kind of temperature-sensitive magnetic-control switch, wherein, comprise compound magnetic tube as above, wherein, described compound magnetic tube is two and corresponding in opposite directions setting, the movable end compound magnetic tube being respectively position changeless stiff end compound magnetic tube and can be subjected to displacement, described movable end compound magnetic tube connects the actuating switch for connecting circuit by STATEMENT OF FEDERALLY SPONSORED, and pass through the position of the Bit andits control actuating switch of movable end compound magnetic tube, described STATEMENT OF FEDERALLY SPONSORED is also connected with the elastic component resetted for realizing described actuating switch, magnetic attraction between two compound magnetic tubes changes with the change of ambient temperature, thus cause movable end compound magnetic tube relative stiff end compound magnetic tube to be subjected to displacement, and under the cooperation of described elastic component, drive actuating switch to move, being turned on or off of realizing circuit circuit.
Described temperature-sensitive magnetic-control switch, wherein, described actuating switch is the conducting strip be arranged in STATEMENT OF FEDERALLY SPONSORED, described conducting strip both sides are respectively arranged with the contact of different circuit-line, when ambient temperature makes the suction between two compound magnetic tubes be less than the restoring force of elastic component, movable end compound magnetic tube will depart from stiff end compound magnetic tube, thus cause the contact of described conducting strip and its side, when ambient temperature makes the suction between two compound magnetic tubes be greater than the restoring force of elastic component, the contact of described conducting strip and its opposite side.
Described temperature-sensitive magnetic-control switch, wherein, described elastic component is spiral reed, and described STATEMENT OF FEDERALLY SPONSORED is gangbar, and described gangbar passes perpendicularly through spiral reed center and is connected with the end of spiral reed center.
Described temperature-sensitive magnetic-control switch, wherein, described conducting strip side is provided with described two compound magnetic tubes, and its opposite side is provided with the state holding device for maintaining conducting strip current state.
Described temperature-sensitive magnetic-control switch, wherein, described state holding device comprises the retention magnet and corresponding retention magnet that are arranged on gangbar end and the magnetic conductor arranged that keeps at a certain distance away, and to be coordinated make conducting strip have state-retention capabilities under two compound magnetic tube effects by retention magnet with the magnetic of magnetic conductor.Namely allow temperature-sensitive magnetic-control switch action very " simply ".
Described temperature-sensitive magnetic-control switch, wherein, described retention magnet periphery is provided with for strengthening magnet magnetic by energising thus realizing forcing keeping being separated or the coil of bonding state of conducting strip and contact, and coil and retention magnet are contactless states.By to coil apply various flows to electric current, thus realize to the pressure of temperature-sensitive magnetic-control switch controls (such as, force remain in released state, or pressure remain in conjunction with closure state)
Described temperature-sensitive magnetic-control switch, wherein, in the coil that described retention magnet periphery is arranged, electric current is by external control, or is controlled via wire jumper connected mode by the contact of conducting strip both sides in temperature-sensitive magnetic-control switch, thus the final controlling functions realizing more enriching.
Beneficial effect: the invention provides a kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch, the temperature-sensitive magnetic-control switch realized by this compound magnetic tube is compared to existing temperature detect switch (TDS), it is simple that it has structure, the feature that control precision is high, temperature-sensitive magnetic-control switch of the present invention can carry out function setting as required simultaneously, thus it has multifunction switch effect, also makes temperature-sensitive magnetic-control switch of the present invention can be applied to multiple occasion, meets the different demands of user.
Accompanying drawing explanation
Fig. 1 is the structural representation of compound magnetic tube in the specific embodiment of the invention.
Fig. 2 is the cutaway view of compound magnetic tube in the specific embodiment of the invention.
Fig. 3 is the structural representation of temperature-sensitive magnetic-control switch in the specific embodiment of the invention.
Fig. 4 is that in the specific embodiment of the invention, temperature-sensitive magnetic-control switch mediates the structural representation of state.
Fig. 5 is the structural representation that in the specific embodiment of the invention, temperature-sensitive magnetic-control switch is in non-conducting state.
Fig. 6 is the structural representation that in the specific embodiment of the invention, temperature-sensitive magnetic-control switch is in conducting state.
Embodiment
The invention provides a kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch, for making object of the present invention, technical scheme and effect clearly, clearly, the present invention is described in more detail below.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
A kind of compound magnetic tube as depicted in figs. 1 and 2, wherein, described compound magnetic tube comprises ferromagnetic metal housing 101, the permanent magnet 103 be arranged in ferromagnetic metal housing cavity, between described ferromagnetic metal housing and permanent magnet, be filled with temperature-sensitive soft body 102.
Concrete, described ferromagnetic metal housing is the barrel-shaped housing be made up of ferromagnetic metal, and described permanent magnet is column structure and is arranged on ferromagnetic metal housing cavity central authorities.
Owing to being provided with permanent magnet in ferromagnetic metal housing, therefore, when two compound magnetic tubes relatively near time, can present between two compound magnetic tubes attract or repel phenomenon.The magnetic line of force that there is permanent magnetism due to temperature-sensitive soft body will have part point to be poured off, and the magnetic conduction of temperature-sensitive soft and separation capacity are temperature variant simultaneously, finally show as temperature change and can cause the change (attract or repel) power between two compound magnetic tubes.
In the present patent application, just only analyze with a kind of situation of attraction.
In high temperature (ambient temperature is more than or equal to the Curie temperature of temperature-sensitive soft body) situation, because the magnetic of the temperature-sensitive soft body in compound magnetic tube disappears, magnetic line of force shunting action progressively disappears, therefore wherein the magnetic induction line of a compound magnetic tube is drawn from the end face of its ferromagnetic metal housing and permanent magnet end, enter ferromagnetic metal housing end face and the permanent magnet end of another compound magnetic tube respectively, the magnetic field that two compound magnetic tubes are set up can make two compound magnetic tubes attract each other to combining, namely the magnetic field intensity exhaled from compound magnetic tube end face is enhanced to maximum, mutual attractive force now between two compound magnetic tubes maximum (exceeded retention magnet and superposed making a concerted effort of the restoring force of spiral reed with attraction between magnetic conductor).Therefore, in the case of a high temperature, two relative compound magnetic tubes can after temperature reaches predetermined value, and magnetic combines, and temperature-sensitive magnetic-control switch completes the state switching action of a switch.And when in temperature-fall period, (ambient temperature is progressively lower than the Curie temperature of temperature-sensitive soft body) is middle, in compound magnetic tube, the magnetic conduction ability of temperature-sensitive soft body is recovered, the magnetic line of force exhaled due to compound magnetic tube end face has poured off most of being divided, magnetic induction line quantity between two compound magnetic tubes is reduced, field weakening, causes the magnetic attraction between two compound magnetic tubes to die down.When retention magnet to superpose with attraction between magnetic conductor the restoring force of spiral reed make a concerted effort to be greater than the mutual attractive force between compound magnetic tube after, two compound magnetic tubes can quick separating, and temperature-sensitive magnetic-control switch carries out state switching again.Thus, when low temperature, two compound magnetic tubes are in released state.The present invention utilizes the characteristic of this compound magnetic tube to prepare temperature-sensitive magnetic-control switch as described below.
Concrete, temperature-sensitive magnetic-control switch as shown in Figure 3 and Figure 4, wherein, comprise compound magnetic tube as above, wherein, described compound magnetic tube is two and corresponding in opposite directions setting, the movable end compound magnetic tube 120 being respectively position changeless stiff end compound magnetic tube 110 and can being subjected to displacement, described movable end compound magnetic tube 120 connects the actuating switch 140 for connecting circuit by STATEMENT OF FEDERALLY SPONSORED 130, and pass through the position of the Bit andits control actuating switch of movable end compound magnetic tube, described STATEMENT OF FEDERALLY SPONSORED is also connected with the elastic component 150 resetted for realizing described actuating switch, magnetic attraction between two compound magnetic tubes changes with the change of ambient temperature, thus cause movable end compound magnetic tube relative stiff end compound magnetic tube to be subjected to displacement, and under the cooperation of described elastic component, drive actuating switch to move, being turned on or off of realizing circuit circuit.
Concrete, described elastic component is spiral reed, and described STATEMENT OF FEDERALLY SPONSORED is gangbar, and described gangbar passes perpendicularly through spiral reed center and is connected with the end of spiral reed center.Described actuating switch is the conducting strip be arranged in gangbar, described conducting strip both sides are respectively arranged with the contact 200 of different circuit-line, when ambient temperature makes the suction between two compound magnetic tubes be less than the restoring force of spiral reed, the circuit-line that the contact of described conducting strip and its side this contact, side of conducting are connected, when ambient temperature makes the suction between two compound magnetic tubes be greater than the restoring force of spiral reed, the circuit-line that the contact of described conducting strip and its opposite side this contact, side of conducting are connected.For Fig. 4, described conducting strip 140 both sides arrange contact 210, contact 220, contact 230 and contact 240 respectively, wherein contact 210 and contact 220 belong to the fixed contact of a road circuit, contact 230 and contact 240 then belong to the fixed contact of another circuit, therefore user can utilize temperature-sensitive magnetic-control switch of the present invention to arrange corresponding electric appliance as required under high temperature and low temperature condition, trigger its certain function, such as electrical equipment auto-breaking etc. during high temperature.
Gangbar vertical spin reed relaxed state place plane, thus make spiral reed when there is deformation, it has the restoring force making spiral reed revert to its relaxed state place plane, the spiral outer end of spiral reed can be arranged on the external shell of temperature-sensitive magnetic-control switch, spiral reed ensure that gangbar moves horizontally along its spiral center all the time, ensure that the normal work of switch.
In addition, described conducting strip side is provided with described two compound magnetic tubes, and its opposite side is provided with the state holding device for maintaining conducting strip current state.Switch General Requirements its can only remain on out and close two states, although magnetic attraction can move owing to undergoing mutation when the temperature of temperature-sensitive soft body reaches Curie temperature thus promoting conducting strip between compound magnetic tube, if but the state that is turned on or off of conducting strip and contact only realizes by compound magnetic tube and keeps, the contact of conducting strip and contact and a point defection seem that " simply " and conducting and off-state cannot realize stablizing not and keep, therefore, temperature-sensitive magnetic-control switch of the present invention is provided with holding device, is turned on or off two states in order to maintained switch.
Particularly, described state holding device comprises the retention magnet 160 and corresponding retention magnet that are arranged on gangbar end and the magnetic conductor 170 arranged that keeps at a certain distance away, and to be coordinated make conducting strip have state-retention capabilities under two compound magnetic tube effects by retention magnet with the magnetic of magnetic conductor.Described retention magnet 160 also belongs to permanent magnet, and the magnetive attraction between itself and magnetic conductor can strengthen because distance reduces.Therefore, when temperature-sensitive magnetic-control switch of the present invention is in low temperature environment, its state as shown in Figure 5, magnetic attraction between two compound magnetic tubes weakens, and when the magnetic attraction be less than between retention magnet and magnetic conductor and spiral reed restoring force sum, conducting strip moves right with gangbar, conducting strip contacts with contact 240 with contact 230, thus the corresponding circuit of conducting, described retention magnet is drawn onto on magnetic conductor, thus maintain the current state of conducting strip, concrete, under this state, the restoring force of the magnetic attraction+spiral reed between the magnetic attraction > compound magnetic tube between described retention magnet and magnetic conductor.And when temperature-sensitive magnetic-control switch of the present invention is in high temperature, its state as shown in Figure 6, magnetic attraction between two compound magnetic tubes strengthens suddenly when ambient temperature rises to more than the Curie temperature of temperature-sensitive soft body, now, magnetic attraction between compound magnetic tube has been greater than the magnetic attraction between retention magnet and magnetic conductor, therefore conducting strip is moved to the left with gangbar, conducting strip contacts with contact 220 with contact 210, thus the corresponding circuit of conducting, described retention magnet is separated with magnetic conductor, and two compound magnetic tubes are tightly inhaled and are attached to together, under this state, the restoring force of the magnetic attraction > retention magnet between compound magnetic tube and the magnetic attraction+spiral reed between magnetic conductor.As long as ambient temperature is in more than the Curie temperature of temperature-sensitive soft body always, the state shown in Fig. 6 just can be maintained.
Be provided with for strengthening retention magnet magnetic by energising thus making conducting strip have the coil 180 forcing hold mode it is preferred that described retention magnet periphery is provided with.Described coil fixed position is arranged, coil 180 can make the magnetic force of retention magnet 160 greatly strengthen after being energized, thus break the original mechanical balance of temperature-sensitive magnetic-control switch, the suction between retention magnet and magnetic conductor is made to be greater than suction sum between spiral reed restoring force and compound magnetic tube, thus can force to keep the state shown in Fig. 5, thus temperature-sensitive magnetic-control switch of the present invention is made to have possessed the power-off restoration function of force switch, namely only have and power-off is carried out to coil 180 could remove state shown in Fig. 5, this function can be used for some to be needed on the electrical equipment of power-off restoration, in the coil that described retention magnet periphery is arranged, electric current can by external control, certainly, the contact at the wire two ends on described coil 180 and the contact 210 of conducting strip both sides, contact 220, contact 230, contact 240 also can connect via wire jumper, certainly, , thus temperature-sensitive magnetic-control switch of the present invention can be made to possess different functions, this temperature-sensitive magnetic-control switch is arranged as required flexibly, show temperature-sensitive magnetic-control switch of the present invention and there is very high versatility.
The invention provides a kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch, the temperature-sensitive magnetic-control switch realized by this compound magnetic tube is compared to existing temperature detect switch (TDS), it is simple that it has structure, the feature that control precision is high, temperature-sensitive magnetic-control switch of the present invention can carry out function setting as required simultaneously, thus it has multifunction switch effect, also makes temperature-sensitive magnetic-control switch of the present invention can be applied to multiple occasion, meets the different demands of user.
Should be understood that, application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (10)
1. a compound magnetic tube, is characterized in that, described compound magnetic tube comprises ferromagnetic metal housing, the permanent magnet be arranged in ferromagnetic metal housing cavity, between described ferromagnetic metal housing and permanent magnet, be filled with temperature-sensitive soft body.
2. compound magnetic tube according to claim 1, is characterized in that, described ferromagnetic metal housing is the barrel-shaped housing be made up of ferromagnetic metal.
3. compound magnetic tube according to claim 1, is characterized in that, described permanent magnet is column structure and is arranged on ferromagnetic metal housing cavity central authorities.
4. a temperature-sensitive magnetic-control switch, it is characterized in that, comprise the compound magnetic tube as described in any one of claim 1-3, wherein, described compound magnetic tube is two and corresponding in opposite directions setting, the movable end compound magnetic tube being respectively position changeless stiff end compound magnetic tube and can be subjected to displacement, described movable end compound magnetic tube connects the actuating switch for connecting circuit by STATEMENT OF FEDERALLY SPONSORED, and pass through the position of the Bit andits control actuating switch of movable end compound magnetic tube, described STATEMENT OF FEDERALLY SPONSORED is also connected with the elastic component resetted for realizing described actuating switch, magnetic attraction between two compound magnetic tubes changes with the change of ambient temperature, thus cause movable end compound magnetic tube relative stiff end compound magnetic tube to be subjected to displacement, and under the cooperation of described elastic component, drive actuating switch to move, being turned on or off of realizing circuit circuit.
5. temperature-sensitive magnetic-control switch according to claim 4, it is characterized in that, described actuating switch is the conducting strip be arranged in STATEMENT OF FEDERALLY SPONSORED, described conducting strip both sides are respectively arranged with the contact of different circuit-line, when ambient temperature makes the suction between two compound magnetic tubes be less than the restoring force of elastic component, movable end compound magnetic tube will depart from stiff end compound magnetic tube, thus cause the contact of described conducting strip and its side and the circuit-line that is connected of this contact, side of conducting, when ambient temperature makes the suction between two compound magnetic tubes be greater than the restoring force of elastic component, the circuit-line that the contact of described conducting strip and its opposite side this contact, side of conducting are connected.
6. temperature-sensitive magnetic-control switch according to claim 5, is characterized in that, described elastic component is spiral reed, and described STATEMENT OF FEDERALLY SPONSORED is gangbar, and described gangbar passes perpendicularly through spiral reed center and is connected with the end of spiral reed center.
7. temperature-sensitive magnetic-control switch according to claim 6, is characterized in that, described conducting strip side is provided with described two compound magnetic tubes, and its opposite side is provided with the state holding device for maintaining conducting strip current state.
8. temperature-sensitive magnetic-control switch according to claim 7, it is characterized in that, described state holding device comprises the retention magnet and corresponding retention magnet that are arranged on gangbar end and the magnetic conductor arranged that keeps at a certain distance away, and to be coordinated make conducting strip have state-retention capabilities under two compound magnetic tube effects by retention magnet with the magnetic of magnetic conductor.
9. temperature-sensitive magnetic-control switch according to claim 8, is characterized in that, is arranged with for strengthening retention magnet magnetic by energising thus realizing forcing keeping being separated or the coil of bonding state of conducting strip and contact outside described retention magnet.
10. temperature-sensitive magnetic-control switch according to claim 9, is characterized in that, in the coil that described retention magnet periphery is arranged, electric current is by external control, or is controlled via wire jumper connected mode by the contact of conducting strip both sides in temperature-sensitive magnetic-control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492149.0A CN105047475B (en) | 2015-08-12 | 2015-08-12 | A kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510492149.0A CN105047475B (en) | 2015-08-12 | 2015-08-12 | A kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105047475A true CN105047475A (en) | 2015-11-11 |
| CN105047475B CN105047475B (en) | 2017-11-10 |
Family
ID=54453936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510492149.0A Expired - Fee Related CN105047475B (en) | 2015-08-12 | 2015-08-12 | A kind of compound magnetic tube and a kind of temperature-sensitive magnetic-control switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105047475B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895328A (en) * | 1972-11-30 | 1975-07-15 | Tohoku Metal Ind Ltd | Thermo-magnetically operated switches |
| JPS6193924A (en) * | 1984-10-15 | 1986-05-12 | Tdk Corp | Heat sensitive sensor |
| JPH11154449A (en) * | 1997-11-19 | 1999-06-08 | Tokin Corp | Temperature switch |
| CN202363360U (en) * | 2011-10-09 | 2012-08-01 | 陆明岳 | Normal open thermosensitive magnetic switch |
| CN104576197A (en) * | 2013-10-27 | 2015-04-29 | 西安群丰电子信息科技有限公司 | Temperature-sensitive magnetic temperature switch |
-
2015
- 2015-08-12 CN CN201510492149.0A patent/CN105047475B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3895328A (en) * | 1972-11-30 | 1975-07-15 | Tohoku Metal Ind Ltd | Thermo-magnetically operated switches |
| JPS6193924A (en) * | 1984-10-15 | 1986-05-12 | Tdk Corp | Heat sensitive sensor |
| JPH11154449A (en) * | 1997-11-19 | 1999-06-08 | Tokin Corp | Temperature switch |
| CN202363360U (en) * | 2011-10-09 | 2012-08-01 | 陆明岳 | Normal open thermosensitive magnetic switch |
| CN104576197A (en) * | 2013-10-27 | 2015-04-29 | 西安群丰电子信息科技有限公司 | Temperature-sensitive magnetic temperature switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105047475B (en) | 2017-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3295081A (en) | Thermo-magnetically operated switches | |
| US3014104A (en) | Electrical contacts | |
| CN115172115B (en) | Non-mechanical switching contact type breaker | |
| CN104733230A (en) | Permanent magnet intelligent contactor having electromagnetic controllable counterforce and capable of guaranteeing normal switching-off | |
| US2503243A (en) | Electrodynamic relay | |
| CN105047475A (en) | Composite magnetic tube and thermosensitive magnetic control switch | |
| CN109427506B (en) | Pressure switch and electric pressure cooker | |
| US2322069A (en) | Relay | |
| CN106910661A (en) | A kind of relay with bilateral holding function | |
| CN101908752B (en) | Overload protector | |
| CN115206743B (en) | Electromagnetic leakage circuit breaker adopting leakage current relay to replace EMR | |
| RU187013U1 (en) | Polarized magnetically controlled switching device for determining the angle of inclination / rotation of the sensor | |
| US2331697A (en) | Control system | |
| CN203760376U (en) | Magnetic proximity switch having directional memory effect | |
| US4169999A (en) | Thermal-magnetic switch | |
| US3768051A (en) | Magneto-motive bistable switching devices | |
| CN209471889U (en) | A kind of small size temperature controller | |
| CN110010390B (en) | Clapping relay | |
| CN202473727U (en) | Vacuum overload protector | |
| CN105390349A (en) | Bistable permanent magnet moulded case circuit breaker | |
| US3789333A (en) | Magneto-motive bistable switching devices | |
| US3324430A (en) | Vacuum relay | |
| CN219370893U (en) | Switch, remote control device and remote controller | |
| CN102723225A (en) | Vacuum overload protector | |
| CN208209501U (en) | A kind of Low-Voltage Leakage Protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 |