CN202487495U - Three-speed temperature-control power supply switch - Google Patents
Three-speed temperature-control power supply switch Download PDFInfo
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- CN202487495U CN202487495U CN 201220027272 CN201220027272U CN202487495U CN 202487495 U CN202487495 U CN 202487495U CN 201220027272 CN201220027272 CN 201220027272 CN 201220027272 U CN201220027272 U CN 201220027272U CN 202487495 U CN202487495 U CN 202487495U
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Abstract
The utility model relates to a three-speed temperature-control power supply switch. The three-speed temperature-control power supply switch comprises a middle-temperature double-metal sheet, a high-temperature double-metal sheet, a first push rod, a second push rod, a first movable contact sheet, a second movable contact sheet, a fixed contact sheet and a conductive sheet, the bottom of an inner cavity of a sensor shell is provided with a first trapezoidal table and a second trapezoidal table from bottom to top, the first trapezoidal table and the second trapezoidal table are used for placing double metal sheets, the structure of a high-temperature double-metal sheet is as same as the structure of the middle-temperature double-metal sheet, the middle-temperature double-metal sheet is an round sheet and comprises a first active metal layer and a first passive metal layer, the first active metal layer and the first passive metal layer are tightly combined into a bilayer structure, and the upper end surface of the first active metal layer and the lower end surface of the first passive metal layer are arc surfaces sunk from the first active metal layer to the first passive metal layer. The three-speed temperature-control power supply switch disclosed by the utility model can ensure that temperature-sensing metal sheets can be immediately and quickly deformed and can exactly transfer the deformation kinetic energy to a switch contact so as to realize the control for on and off of a contact connection circuit.
Description
Technical field
The utility model relates to a kind of temperature control mains switch, particularly relates to a kind of temperature detect switch (TDS) with a plurality of trigger conditions.
Background technology
It is generally acknowledged that the radiating and cooling mode of automobile engine mainly is to use fan that the water tank that starts heat circulating system is carried out wind cooling temperature lowering, in case engine start, no matter the water tank temperature height, fan all can be set to full-speed operation.When engine has just started or ambient temperature when low, the running of fan can cause the engine long time can not reach optimum working temperature, causes unnecessary energy waste, and then influences environmental protection.
Through installing the operational mode that temperature control mains switch and electromagnetic fan clutch can change fan additional, fan, water tank temperature is started when reaching the certain limitation value.Utilize the temperature control mains switch with the trigger condition of engine water tank different temperatures as electromagnetic fan clutch work; Water tank temperature whenever reaches a set point; Temperature detect switch (TDS) is connected electromagnetic fan clutch part control circuit, the control fan be free to slide, speed limit is rotated and at full speed rotary state rotate down.
To above problem, consider to utilize the temperature sensor of the physical characteristic of bimetal leaf as temperature detect switch (TDS).The higher one side of bimetal plate expansion coefficient is an active layers; The one side that the coefficient of expansion is lower is a passive layer; The temperature rising can make the deformation of active layers be greater than the deformation of passive layer, thereby the integral body of bimetal leaf will be bent to passive layer one lateral bending, when reaching uniform temperature numerical value; Make sheet metal produce deformation, this process is reversible.The deformation of sheet metal can make drive disk assembly drive the connection or the disconnection of switch contact, realizes the on/off control of fan circuit.Utilize the different bimetal leaf of several deformation temperatures, supporting corresponding drive disk assembly and switch contact can be realized the power supply control of temperature control mains switch to a plurality of temperature values.In conjunction with the automobile electromagnetic fan clutch, can also set the different rotating speeds of fan to different water tank temperatures, be implemented in the effect that reaches energy-saving and emission-reduction when satisfying engine operating temperature.
A kind of pair of temperature control mains switch disclosed in Chinese patent CN202013846U; Comprise Connection Block, socket, guiding trestle; With by stator, middle temperature shell fragment, high temperature shell fragment, middle temperature push rod, high temperature push rod, two transmission devices that sensing chip is formed, adopt two sensing chips as temperature sensing material, when ambient temperature reaches the deformation temperature of each sensing chip successively; Sensing chip drives corresponding push rod and moves; Make corresponding switch contact contact, the closing of circuit that switch contact connects makes electromagnetic fan clutch drive the fan radiating and cooling with different rotating speed.But this application has just proposed a kind of rough idea, and unexposed inner detailed structure, and those skilled in the art can't implement.
Generally; Require the temperature control mains switch to connect different subsequent conditioning circuits in different temperature control values; But under the special status; Need a kind of temperature control mains switch to make subsequent conditioning circuit closed a specific temperature control value yet, can make the subsequent conditioning circuit open circuit in another specific temperature control value, the temperature detect switch (TDS) with this type of State Control function does not occur in practical application.
The utility model content
The purpose of the utility model provides a kind of three fast temperature control mains switches; Solve thermal control material response temperature variation generation deformation fast; And deformation strength accurately is delivered to switch contact, in time accomplish the technical problem of or open circuit closed to different subsequent conditioning circuits.
The three fast temperature control mains switches of the utility model comprise sensor housing, middle temperature bimetal leaf, high temperature bimetal leaf; The sensor housing intracavity bottom is provided with first halfpace from bottom to top, second halfpace is used to lay bimetal leaf; Wherein: middle temperature bimetal leaf is a disc; Comprise the first active metal level and the first passive metal level; The first active metal level and the first passive metal level are combined closely and are double-decker, and the upper surface of the first active metal level and the lower surface of the first passive metal level are by the cambered surface of first active layers to first passive layer direction depression; The high temperature bimetal leaf is a disc; Comprise the second active metal level and the second passive metal level; The second active metal level and the second passive metal level are combined closely and are double-decker, and the upper surface of the second active metal level and the lower surface of the second passive metal level are by the cambered surface of second active layers to second passive layer direction depression.
Also comprise pedestal, the pedestal center has the centre pilot hole of running through the upper and lower end face, also has on the pedestal to run through upper and lower end face and the eccentric pilot hole parallel with the centre pilot hole.
Also comprise first push rod, second push rod and be positioned at first movable contact flat, second movable contact flat and the fixed touch plate of switch case; First push rod passes the centre pilot hole; One end of first push rod and middle temperature bimetal leaf are conflicted, and the other end of first push rod is with inconsistent with first movable contact flat, and first movable contact flat keeps separating with fixed touch plate; Second push rod passes eccentric pilot hole; One end of second push rod and high temperature bimetal leaf are conflicted, and the other end of second push rod and second movable contact flat are inconsistent, and second movable contact flat and fixed touch plate keep in touch.
A kind of three fast temperature control mains switches that form, middle temperature bimetal leaf is placed in first halfpace, and the high temperature bimetal leaf is placed in second halfpace, and the passive layer of the passive layer of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; Centre bore is on the high temperature bimetal leaf, and the push rod pilot hole is on second movable contact flat; First push rod passes centre bore, the centre pilot hole, and the push rod pilot hole, second push rod passes eccentric pilot hole.
Another the three fast temperature control mains switch that forms, middle temperature bimetal leaf is placed in first halfpace, and the high temperature bimetal leaf is placed in second halfpace, and the passive layer of the passive layer of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; Centre bore is on the high temperature bimetal leaf, and the push rod pilot hole is on first movable contact flat; First push rod passes centre bore, eccentric pilot hole, and second push rod passes the centre pilot hole, the push rod pilot hole.
Another the three fast temperature control mains switch that forms, middle temperature bimetal leaf is placed in second halfpace, and the high temperature bimetal leaf is placed in first halfpace, and the active layers of the active layers of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; The push rod pilot hole is on first movable contact flat, and centre bore is on middle temperature bimetal leaf; First push rod passes eccentric pilot hole, and second push rod passes centre bore, centre pilot hole, push rod pilot hole.
Another the three fast temperature control mains switch that forms, middle temperature bimetal leaf is placed in second halfpace, and the high temperature bimetal leaf is placed in first halfpace, and the passive layer of the passive layer of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; The push rod pilot hole is on second movable contact flat, and centre bore is on middle temperature bimetal leaf; First push rod passes eccentric pilot hole, the push rod pilot hole, and second push rod passes centre bore, the centre pilot hole.
Another the three fast temperature control mains switch that forms, middle temperature bimetal leaf is placed in first halfpace, and the high temperature bimetal leaf is placed in second halfpace, and the active layers of the passive layer of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; The push rod pilot hole is on second movable contact flat, and centre bore is on the high temperature bimetal leaf; First push rod passes centre bore, the centre pilot hole, and the push rod pilot hole, second push rod passes eccentric pilot hole.
Another the three fast temperature control mains switch that forms, middle temperature bimetal leaf is placed in first halfpace, and the high temperature bimetal leaf is placed in second halfpace, and the passive layer of the active layers of middle temperature bimetal leaf and high temperature bimetal leaf is adjacent; The push rod pilot hole is on first movable contact flat, and centre bore is on the high temperature bimetal leaf; First push rod passes centre bore, the centre pilot hole, and second push rod passes eccentric pilot hole, the push rod pilot hole.
Said fixed touch plate comprises the first circular arc metallic plate, the second circular arc metallic plate and transition metal plate; The transition metal plate is a rectangular slab; The upper surface of transition metal plate is fixedly connected the right side of the first circular arc metallic plate; The lower surface of transition metal plate is fixedly connected the left side of the second circular arc metallic plate, and the first circular arc metallic plate is parallel with the second circular arc metallic plate, and the first circular arc metallic plate and the second circular arc metallic plate are at the level and smooth circular arc metallic plate that is projected as of vertical direction; The radian of radian and switch case inner chamber is corresponding, on the first circular arc metallic plate, has the grafting through hole.
Said first movable contact flat comprise rectangle first on shell fragment, the first transition shell fragment and first time shell fragment; The right side of shell fragment is fixedly connected the upper surface of the first transition shell fragment on first; The right side of first time shell fragment is fixedly connected the lower surface of the first transition shell fragment; Shell fragment is parallel with first time shell fragment and be positioned at the same side of the first transition shell fragment on first; Have the grafting through hole on first on the shell fragment, the strip through-hole that the semi-circular through hole that the first transition shell fragment lower end is offered and first time shell fragment right-hand member are offered is interconnected, and the width of first time shell fragment left side is less than the width of right-hand part; Said second movable contact flat comprise rectangle second on shell fragment, the second transition shell fragment and second time shell fragment; The right side of shell fragment is fixedly connected the upper surface of the second transition shell fragment on second; The right side of second time shell fragment is fixedly connected the lower surface of the second transition shell fragment; Shell fragment is parallel with second time shell fragment and be positioned at the same side of the second transition shell fragment on second; Have the grafting through hole on second on the shell fragment, the strip through-hole that the semi-circular through hole that the second transition shell fragment lower end is offered and second time shell fragment right-hand member are offered is interconnected, and the width of second time shell fragment left side is less than the width of right-hand part.
Described three fast temperature control mains switches also comprise the conducting strip that is positioned at switch case; Said conducting strip comprises grafting metallic plate and plug metallic plate; The diagonal position of plug metallic plate respectively has a right angle breach; The grafting metallic plate has a right angle breach; The long sidewall of a right angle breach of a sidewall and plug metallic plate of grafting metallic plate right angle breach is fixedly connected, with the grafting metallic plate end face of another parallel sidewalls of grafting metallic plate right angle breach be provided with the corresponding grafting of the through hole of pegging graft protruding, grafting metallic plate and plug metallic plate formation angle; The plug metallic plate passes and is fixed in the fixed bed in the switch case inner chamber.
The three fast temperature control mains switches of the utility model are swift in response accurately to specific temperature control value; The given shape of each bimetal leaf and structure; Can guarantee that bimetal leaf gathers strength with variations in temperature before reaching specific temperature control value; Energy surpasses critical value when reaching specific temperature control value, and bimetal leaf moment is produced than large deformation to predetermined direction, and deformation strength is fast greater than the deformation elastic force and the speed of each movable contact flat; Corresponding movable contact flat and fixed touch plate are thoroughly engaged or separate through corresponding push rod, can not occur the state of adhesion or virtual connections between the contact.
Utilize each pilot hole on the pedestal to realize multi-point support to corresponding push rod, guaranteed push rod when transmitting deformation strength with receive force direction consistent, it is accurate to transmit, the loss of minimizing deformation energy.
The contact position of fixed touch plate and each movable contact flat can guarantee the horizontal range between the contact at the two ends of fixed touch plate, and also there is difference in height in the two ends of fixed touch plate, has further guaranteed interval in vertical direction.
The structure of each movable contact flat forms " Contraband " shape, can guarantee under the small construction size, to keep lasting structural elasticity, and help the assembling between each contact.Simultaneously, each movable contact flat makes transmission structures in stable condition through forming bigger stable strength at a stalemate between push rod and corresponding bimetal leaf, can not receive the interference of switch external world environment for use easily.
Under the prerequisite of assembly relation that does not change each contact and link position, can be through the structure of adjustment conducting strip, make the spread pattern of conducting strip adapt to the grafting form of different subsequent conditioning circuit joints.
The three fast temperature control mains switches of the utility model have formed through the change to syndeton between each bimetal leaf, each push rod, each movable contact flat and the fixed touch plate and have been different from the embodiment of prior art to the subsequent conditioning circuit State Control; Realized when temperature is in single variation tendency; Different specific temperature control values can satisfy the closed and open circuit to subsequent conditioning circuit; The three fast temperature control mains switches of the utility model make that the subsequent control circuit can flexible design; Be easy to combine, produce more effective control effect with the circuit that installs.
Temperature control mains switch through the utility model; According in temperature-rise period; Or the variations in temperature in the temperature-fall period; Can realize the different control circuits of electromagnetic fan clutch are carried out opposite control, can cooperate the electromagnetic fan clutch structure to realize normal temperature, three states of middle gentle high temperature that fan rotates, expand the mentality of designing and the scheme of electromagnetic fan clutch structure and circuit.The temperature control mains switch response of the utility model is sensitive, precise control, and misoperation is few, and temperature-control range is wide.
Be described further below in conjunction with the three fast temperature control mains switches of accompanying drawing the utility model.
Description of drawings
Fig. 1 is the structural representation of first movable contact flat of the utility model three fast temperature control mains switch embodiment 1;
Fig. 2 is the structural representation of the fixed touch plate of the utility model three fast temperature control mains switch embodiment 1;
Fig. 3 is the internal structure sketch map of the utility model three fast temperature control mains switch embodiment 1;
Fig. 4 looks cutaway view for the internal structure master of the utility model three fast temperature control mains switch embodiment 1;
Fig. 5 is the cutaway view of the middle temperature bimetal leaf of the utility model three fast temperature control mains switch embodiment 1;
Fig. 6 is the internal structure A-A direction cutaway view of the utility model three fast temperature control mains switch embodiment 1;
Fig. 7 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 1;
Fig. 8 is the axial view of the transmission device of the utility model three fast temperature control mains switch embodiment 1;
Fig. 9 is that the conducting strip of the utility model three fast temperature control mains switch embodiment 1 is arranged sketch map ();
Figure 10 is that the conducting strip of the utility model three fast temperature control mains switch embodiment 1 is arranged sketch map (two);
Figure 11 is the equivalent electric circuit of the utility model three fast temperature control mains switch embodiment 1 controlled coils when normal temperature and in the electromagnetic fan clutch;
Figure 12 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 2;
Figure 13 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 3;
Figure 14 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 4;
Figure 15 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 5;
Figure 16 is the shaft side figure of the transmission device of the utility model three fast temperature control mains switch embodiment 6.
Embodiment
In the embodiment 1 of the three fast temperature control mains switches of the utility model; As shown in Figure 1; First movable contact flat 015 comprise rectangle first on shell fragment 016b, the first transition shell fragment 016c and first time shell fragment 016d; The right side of shell fragment is fixedly connected the upper surface of the first transition shell fragment on first; The right side of first time shell fragment be fixedly connected first cross shell fragment the lower surface, shell fragment is parallel with first time shell fragment and be positioned at the same side of the first transition shell fragment on first, has grafting through hole 016a on the shell fragment on first; The strip through-hole that the semi-circular through hole that the first transition shell fragment lower end is offered and first time shell fragment right-hand member are offered is interconnected, and the width of first time shell fragment left side is less than the width of right-hand part; Second movable contact flat 016 comprise rectangle second on shell fragment, the second transition shell fragment and second time shell fragment; The right side of shell fragment is fixedly connected the upper surface of the second transition shell fragment on second; The right side of second time shell fragment is fixedly connected the lower surface of the second transition shell fragment; Shell fragment is parallel with second time shell fragment and be positioned at the same side of the second transition shell fragment on second; Have the grafting through hole on second on the shell fragment, the strip through-hole that the semi-circular through hole that the second transition shell fragment lower end is offered and second time shell fragment right-hand member are offered is interconnected, and the width of second time shell fragment left side is less than the width of right-hand part.
As shown in Figure 2; Fixed touch plate 020 comprises the first circular arc metallic plate 020a, the second circular arc metallic plate 020b and transition metal plate 020c; The transition metal plate is a rectangular slab, and the upper surface of transition metal plate is fixedly connected the right side of the first circular arc metallic plate, and the lower surface of transition metal plate is fixedly connected the left side of the second circular arc metallic plate; The first circular arc metallic plate is parallel with the second circular arc metallic plate; The first circular arc metallic plate and the second circular arc metallic plate are at the level and smooth circular arc metallic plate that is projected as of vertical direction, and the radian of radian and switch case inner chamber is corresponding, on the first circular arc metallic plate, has grafting through hole 016a.
As shown in Figure 3; Conducting strip 021 comprises grafting metallic plate 021b and plug metallic plate 021c; The diagonal position of plug metallic plate respectively has a right angle breach; The grafting metallic plate has a right angle breach; The long sidewall of a right angle breach of a sidewall and plug metallic plate of grafting metallic plate right angle breach is fixedly connected, and is provided with the grafting protruding 021a corresponding with the through hole 016a that pegs graft with the grafting metallic plate end face of another parallel sidewalls of grafting metallic plate right angle breach, grafting metallic plate and plug metallic plate formation angle; The plug metallic plate passes and is fixed in the fixed bed in the switch case inner chamber.
Like Fig. 3, Fig. 4 and shown in Figure 5; In in the warm bimetal leaf 005 warm bimetal leaf be disc; Comprise the first active metal level 0051 and the first passive metal level 0052; The first active metal level and the first passive metal level are combined closely and are double-decker, and the upper surface of the first active metal level and the lower surface of the first passive metal level are by the cambered surface of the first active metal level to the first passive metal level direction depression.The active layers that the relative first active metal level of the passive layer thermal coefficient of expansion that the first passive metal level forms forms is less; Active layers adopts manganin manganin alloy; Or nichrome; Or material such as nicalloy processes, and passive layer adopts material such as dilval to process, adopt rolling complex method or punching press form in warm bimetal leaf.In the middle of warm sheet metal be heated when deformation takes place; The upper surface of the first active metal level and the lower surface of the first passive metal level are deformed into by the cambered surface of the first passive metal level to the first active metal level direction depression; In the center of warm bimetal leaf maximum than the home position displacement, the not obvious decline of the load-bearing capacity of middle temperature bimetal leaf.
High temperature bimetal leaf 006 is a disc; Comprise the second active metal level and the second passive metal level; The second active metal level and the second passive metal level are combined closely and are double-decker; The second active metal level forms active layers, and the second passive metal level forms passive layer, and the upper surface of the second active metal level and the lower surface of the second passive metal level are the cambered surface that is caved in to the second passive metal level direction by the second active metal level.When the high-temperature metal sheet is heated generation deformation; The upper surface of the second active metal level and the lower surface of the second passive metal level are deformed into by the cambered surface of the second passive metal level to the second active metal level direction depression; The center of high temperature bimetal leaf is maximum than the home position displacement, the not obvious decline of the load-bearing capacity of high temperature bimetal leaf.The center of high temperature bimetal leaf 006 has centre bore 031.
The distance that first halfpace 009 and second halfpace are 010 can guarantee not contact between the bimetal leaf at normal temperatures; In reaching when warm set point or high temperature set point; Can not contact to each other after the bimetal leaf generation deformation yet; Avoided multipath transmission, caused the high temperature bimetal leaf that deformation takes place in advance because of heat.
Centre bore 031, centre pilot hole 032, push rod pilot hole 017 plays support respectively, the effect of guiding with 033 pair first push rod 008 of eccentric pilot hole and second push rod 007.
There are difference in height in second contact 013 and first contact 011 of fixed touch plate 020, when being used to guarantee that each movable contact flat contact contacts with the fixed touch plate contact, do not contact between movable contact flat, avoid causing power supply control chaotic.
Protuberance 004 closely contacts with tank outer wall as temperature sensor in the present embodiment, embeds tank inner wall, selects difformity, increases the contact area of sensor housing and water tank, accelerates the heat conduction of water tank, dwindles the sensor response time.Help conducting fast the water tank thermal change.
When the three fast temperature control mains switch transducers of embodiment 1 are heated; Because the placing direction of bimetal leaf active layers is different; The traffic direction that forms first push rod 008 and second push rod 007 is opposite; Make that the contacting of different movable contact flats and fixed touch plate 020/off-state is opposite, the unexpected contact/disconnection of the subsequent control circuit of having avoided different movable contact flats to connect has improved the reliability of three fast temperature control mains switches.The shape of bimetal leaf and structure; It is certain stressed to guarantee that before deformation dimensionally stable can bear, and when deformation, can obtain maximum deformation kinetic energy in moment, be further to improve reliability; Bimetal leaf applies insulating material, can avoid the accident contact of other situation.
The contact-making surface of the corresponding contact of movable contact flat and fixed touch plate is convex surface and the concave surface that cooperatively interacts, and guarantees contact area.
The three fast temperature control mains switches of embodiment 1 use above structure can guarantee the mains switch control of normal temperature, middle gentle high temperature.Keep independent between the drive disk assembly of each temperature control process, be not connected, effectively avoided temperature control process destructions that is interfered, guaranteed that each drive disk assembly proper is with timely in the temperature control process.Each movable contact flat makes transmission structures in stable condition through forming bigger stable strength at a stalemate between push rod and corresponding bimetal leaf, can not receive the interference of switch external world environment for use easily, for example mechanical oscillation, rocks etc.
Shown in figure 11, be when the three fast temperature control mains switches of embodiment 1 are applied in the circuit control of automobile electromagnetic fan clutch, when engine water tank normal temperature, with the equivalent electric circuit of two controlled coils in the electromagnetic fan clutch.First movable contact flat and fixed touch plate are as first K switch 1; Second movable contact flat and fixed touch plate are as second switch K2, and first K switch, 1 open circuit is opened a way the loop of the power supply P and the first coil L1; First coil does not produce electromagnetic attraction; Second switch K2 is closed, makes the circuit closed of the power supply P and the second coil L2, and second coil produces electromagnetic attraction.
Consider the radiating and cooling effect of engine, first set point should be set in 70 to 76 ℃, and second set point should be set in 80 to 90 ℃, considers the temperature-sensitive sum of errors deformation time-delay of sensor element, and the difference of first set point and second set point should be greater than 6 ℃.
When engine temperature is that normal temperature is not when reaching first set point; Temperature detect switch (TDS) keeps first operating state, and first movable contact flat keeps separating with fixed touch plate, the loop open circuit of the first coil L1; Second movable contact flat and fixed touch plate keep in touch, the circuit closed of the second coil L2.When temperature rose to first set point, middle temperature bimetal leaf generation deformation the space occurred between the middle temperature bimetal leaf and first push rod 008; First movable contact flat is subjected to displacement because of elastic deformation promotes first push rod 008; The first movable contact flat generation deformation makes first movable contact flat contact with fixed touch plate, gets into second operating state; First movable contact flat and fixed touch plate keep in touch; The circuit closed of the first coil L1, second movable contact flat and fixed touch plate keep in touch, the circuit closed of the second coil L2.When temperature rose to second set point, high temperature bimetal leaf generation deformation was subjected to displacement second push rod 007; Second push rod 007 promotes second movable contact flat to be separated with fixed touch plate; Get into the 3rd operating state, first movable contact flat and fixed touch plate keep in touch, the circuit closed of the first coil L1; Second movable contact flat keeps separating with fixed touch plate, the loop open circuit of the second coil L2.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
In embodiment 2; Under the constant situation of other structures of aforementioned embodiment 1 shown in Fig. 1 to 9; Shown in figure 12; The middle temperature bimetal leaf 005a of transmission device is placed on first halfpace of sensor shell body cavity inner bottom part, and high temperature bimetal leaf 006a is placed on second halfpace, and the passive layer of the passive layer of middle temperature bimetal leaf 005a and high temperature bimetal leaf 006a is adjacent.Fixed touch plate 020a one end upper surface is provided with the first contact 011a, and other end upper surface is provided with the second contact 013a; The end lower surface of the first movable contact flat 015a is provided with the first movable contact flat contact 012a; The end lower surface of the second movable contact flat 016a is provided with the second movable contact flat contact 014a; On the first movable contact flat 015a, be provided with the push rod pilot hole; High temperature bimetal leaf 006a is provided with centre bore; The first push rod 008a passes centre bore, eccentric pilot hole, and an end and middle temperature bimetal leaf 005a are inconsistent; The other end and the first movable contact flat 015a are inconsistent, and the first contact 011a does not contact with the first movable contact flat contact 012a.The second push rod 007a passes centre pilot hole 033, and push rod pilot hole 017, one end and high temperature bimetal leaf 006a are inconsistent, and the other end and the second movable contact flat 016a are inconsistent, and the second contact 013a contacts with the second movable contact flat contact 014a.
When engine temperature did not reach first set point, temperature detect switch (TDS) kept first operating state, and first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.When temperature rose to first set point, middle temperature bimetal leaf generation deformation the space occurred between the middle temperature bimetal leaf and first push rod 008; First movable contact flat is subjected to displacement because of elastic deformation promotes first push rod 008; The first movable contact flat generation deformation makes first movable contact flat contact with fixed touch plate, gets into second operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch.When temperature rises to second set point; High temperature bimetal leaf generation deformation; Second push rod 007 is subjected to displacement, and second push rod 007 promotes second movable contact flat to be separated with fixed touch plate, gets into the 3rd operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
In embodiment 3; Under the constant situation of other structures of aforementioned embodiment 1 shown in Fig. 1 to 9, shown in figure 13, on the first movable contact flat 015b, be provided with the push rod pilot hole; On middle temperature bimetal leaf 005b, be provided with centre bore; The middle temperature bimetal leaf 005b of transmission device is placed on second halfpace of sensor housing 002 chamber inner bottom part, and high temperature bimetal leaf 006b is placed on first halfpace, and the active layers of the active layers of middle temperature bimetal leaf 005b and high temperature bimetal leaf 006b is adjacent.Fixed touch plate 020b one end upper surface is provided with the first contact 011b, and other end upper surface is provided with the second contact 013b; The end lower surface of the first movable contact flat 015b is provided with the first movable contact flat contact 012b; The end lower surface of the second movable contact flat 016b is provided with the second movable contact flat contact 014b; The first push rod 008b passes eccentric pilot hole, and an end and middle temperature bimetal leaf 005b are inconsistent, and the other end and the first movable contact flat 015b are inconsistent, and the first contact 011b does not contact with the first movable contact flat contact 012b.The second push rod 007b passes centre bore 031, the centre pilot hole, and the push rod pilot hole, an end and high temperature bimetal leaf 006b are inconsistent, and the other end and the second movable contact flat 016b are inconsistent, and the second contact 013b contacts with the second movable contact flat contact 014b.
When engine temperature did not reach first set point, temperature detect switch (TDS) kept first operating state, and first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.When temperature rose to first set point, middle temperature bimetal leaf generation deformation the space occurred between the middle temperature bimetal leaf and first push rod 008; First movable contact flat is subjected to displacement because of elastic deformation promotes first push rod 008; The first movable contact flat generation deformation makes first movable contact flat contact with fixed touch plate, gets into second operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch.When temperature rises to second set point; High temperature bimetal leaf generation deformation; Second push rod 007 is subjected to displacement, and second push rod 007 promotes second movable contact flat to be separated with fixed touch plate, gets into the 3rd operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
In embodiment 4; Under the constant situation of other structures of aforementioned embodiment 1 shown in Fig. 1 to 9, shown in figure 14, on the second movable contact flat 016c, be provided with the push rod pilot hole; On middle temperature bimetal leaf 005c, be provided with centre bore; The middle temperature bimetal leaf 005c of transmission device is placed on second halfpace of sensor housing 002 chamber inner bottom part, and high temperature bimetal leaf 006c is placed on first halfpace, and the passive layer of the passive layer of middle temperature bimetal leaf 005c and high temperature bimetal leaf 006c is adjacent.Fixed touch plate 020c one end lower surface is provided with the first contact 011c, and other end lower surface is provided with the second contact 013c; The end upper surface of the first movable contact flat 015c is provided with the first movable contact flat contact 012c; The end upper surface of the second movable contact flat 016c is provided with the second movable contact flat contact 014c; The first push rod 008c passes eccentric pilot hole, the push rod pilot hole, and an end and middle temperature bimetal leaf 005c are inconsistent, and the other end and the first movable contact flat 015c are inconsistent, and the first contact 011c does not contact with the first movable contact flat contact 012c.The second push rod 007c passes centre bore, the centre pilot hole, and an end and high temperature bimetal leaf 006c are inconsistent, and the other end and the second movable contact flat 016c are inconsistent, and the second contact 013c contacts with the second movable contact flat contact 014c.
When engine temperature did not reach first set point, temperature detect switch (TDS) kept first operating state, and first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.When temperature rises to first set point; In warm bimetal leaf generation deformation; First push rod 008 is subjected to displacement; First push rod 008 promotes first movable contact flat and contacts entering second operating state with fixed touch plate, and first movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch.When temperature rose to second set point, high temperature bimetal leaf generation deformation the space occurred between the high temperature bimetal leaf and second push rod 007; Second movable contact flat is subjected to displacement because of elastic deformation promotes second push rod 007; The second movable contact flat generation deformation makes second movable contact flat separate with fixed touch plate, gets into the 3rd operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
In embodiment 5; Under the constant situation of other structures of aforementioned embodiment 1 shown in Fig. 1 to 9, shown in figure 15, on the second movable contact flat 016d, be provided with the push rod pilot hole; On high temperature bimetal leaf 006d, be provided with centre bore; The middle temperature bimetal leaf 005d of transmission device is placed on first halfpace of sensor housing 002 chamber inner bottom part, and high temperature bimetal leaf 006d is placed on second halfpace, and the active layers of the passive layer of middle temperature bimetal leaf 005d and high temperature bimetal leaf 006d is adjacent.Fixed touch plate 020d one end upper surface is provided with the first contact 011d, and other end lower surface is provided with the second contact 013d; The end lower surface of the first movable contact flat 015c is provided with the first movable contact flat contact 012d; The end upper surface of the second movable contact flat 016d is provided with the second movable contact flat contact 014d; The first push rod 008d passes centre bore, the centre pilot hole, and the push rod pilot hole, an end and middle temperature bimetal leaf 005d are inconsistent, and the other end and the first movable contact flat 015d are inconsistent, and the first contact 011d does not contact with the first movable contact flat contact 012d.The second push rod 007d passes eccentric pilot hole, and an end and high temperature bimetal leaf 006d are inconsistent, and the other end and the second movable contact flat 016d are inconsistent, and second contact 013 contacts with the second movable contact flat contact 014.
When engine temperature did not reach first set point, temperature detect switch (TDS) kept first operating state, and first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.When temperature rose to first set point, middle temperature bimetal leaf generation deformation the space occurred between the middle temperature bimetal leaf and first push rod 008; First movable contact flat is subjected to displacement because of elastic deformation promotes first push rod 008; The first movable contact flat generation deformation makes first movable contact flat contact with fixed touch plate, gets into second operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch.When temperature rose to second set point, high temperature bimetal leaf generation deformation the space occurred between the high temperature bimetal leaf and second push rod 007; Second movable contact flat is subjected to displacement because of elastic deformation promotes second push rod 007; The second movable contact flat generation deformation makes second movable contact flat separate with fixed touch plate, gets into the 3rd operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
In embodiment 6; Under the constant situation of other structures of aforementioned embodiment 1 shown in Fig. 1 to 9, shown in figure 16, on the first movable contact flat 015e, be provided with the push rod pilot hole; On high temperature bimetal leaf 006e, be provided with centre bore; The middle temperature bimetal leaf 005e of transmission device is placed on first halfpace of sensor housing 002 chamber inner bottom part, and high temperature bimetal leaf 006e is placed on second halfpace, and the passive layer of the active layers of middle temperature bimetal leaf 005e and high temperature bimetal leaf 006e is adjacent.Fixed touch plate 020e one end lower surface is provided with the first contact 011e, and other end upper surface is provided with the second contact 013e; The end upper surface of the first movable contact flat 015e is provided with the first movable contact flat contact 012e; The end lower surface of the second movable contact flat 016e is provided with the second movable contact flat contact 014e; The first push rod 008e passes centre bore, the centre pilot hole, and an end and middle temperature bimetal leaf 005e are inconsistent, and the other end and the first movable contact flat 015e are inconsistent, and the first contact 011e does not contact with the first movable contact flat contact 012e.The second push rod 007e passes eccentric pilot hole, the push rod pilot hole, and an end and high temperature bimetal leaf 006e are inconsistent, and the other end and the second movable contact flat 016e are inconsistent, and the second contact 013e contacts with the second movable contact flat contact 014e.
When engine temperature did not reach first set point, temperature detect switch (TDS) kept first operating state, and first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.When temperature rises to first set point; In warm bimetal leaf generation deformation; First push rod 008 is subjected to displacement, and first push rod 008 promotes first movable contact flat and contacts with fixed touch plate, gets into second operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch.When temperature rises to second set point; High temperature bimetal leaf generation deformation; Second push rod 007 is subjected to displacement, and second push rod 007 promotes second movable contact flat to be separated with fixed touch plate, gets into the 3rd operating state; First movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate.When temperature dropped to second set point, deformation took place and restores to the original state in high temperature bimetal leaf once more, gets into second operating state.When temperature dropped to first set point, deformation took place and restores to the original state in middle temperature bimetal leaf once more, gets into first operating state.
Make the method for three fast temperature control mains switches in the foregoing description, comprising:
Form sensor housing;
Form pedestal;
Form switch case;
With the conducting strip switch case of packing into;
Fixed touch plate and conducting strip are installed, first movable contact flat is connected with the first movable contact flat contact, and install, second movable contact flat is connected with the second movable contact flat contact, and installs with conducting strip with conducting strip;
Centre bore and push rod pilot hole are processed as requested;
With middle temperature bimetal leaf, high temperature bimetal leaf, first push rod, second push rod and the pedestal sensor housing of packing in proper order; Switch case, sealing ring and sensor housing plugged into through snap fit be in the same place.
The method of utilizing the utility model that the electromagnetic fan clutch control circuit is controlled comprises that step is following:
Engine temperature is not enough to make bimetal leaf to produce deformation under the normal temperature, and temperature detect switch (TDS) keeps first operating state, and promptly first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch;
Temperature rises to first set point, middle temperature bimetal leaf generation deformation instant reverse, and temperature detect switch (TDS) gets into second operating state, and promptly first movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch;
Temperature rises to second set point, high temperature bimetal leaf generation deformation instant reverse, and temperature detect switch (TDS) gets into the 3rd operating state, and promptly first movable contact flat and fixed touch plate keep in touch, and second movable contact flat keeps separating with fixed touch plate;
Temperature drops to second set point, and high temperature bimetal leaf generation deformation instant reverse restores, and temperature detect switch (TDS) gets into second operating state, and promptly first movable contact flat and fixed touch plate keep in touch, and second movable contact flat and fixed touch plate keep in touch;
Temperature drops to first set point, and middle temperature bimetal leaf generation deformation instant reverse restores, and temperature detect switch (TDS) gets into first operating state, and promptly first movable contact flat keeps separating with fixed touch plate, and second movable contact flat and fixed touch plate keep in touch.
Comprise a kind of electromagnetic fan clutch of the three fast temperature control mains switches of the utility model, can accomplish when normal temperature, or engine start is not when reaching working temperature, radiator fan does not rotate, not radiating and cooling; When reaching first limiting temperature, connect the dedicated control circuit of electromagnetic fan clutch, make the radiator fan middling speed rotate radiating and cooling; When reaching second limiting temperature, break off the dedicated control circuit of electromagnetic fan clutch, make the radiator fan high speed rotating, radiating and cooling.
Like Fig. 9 and shown in Figure 10; According to the shape of supply socket, the conducting strip 021 among the utility model embodiment can make the arrangement of three conducting strips through the angle that changes first metallic plate and be connected with second metallic plate under the situation that does not change temperature detect switch (TDS) internal activity contact and fixed touch plate syndeton can be triangle or vertical bar shaped.
Bimetal leaf among the utility model embodiment, the shape of cooperation sensor shell intracoelomic cavity, edge shape can be shapes such as circular arc, rectangle, pointed shape.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection range of the utility model claims.
Claims (12)
1. fast temperature control mains switch, comprise sensor housing (002), middle temperature bimetal leaf (005,005a; 005b, 005c, 005d; 005e), the high temperature bimetal leaf (006,006a, 006b; 006c, 006d, 006e); The sensor housing intracavity bottom is provided with first halfpace (009) from bottom to top, second halfpace (010) is used to lay bimetal leaf, it is characterized in that: middle temperature bimetal leaf is a disc, comprises the first active metal level (0051) and the first passive metal level (0052); The first active metal level and the first passive metal level are combined closely and are double-decker, and the upper surface of the first active metal level and the lower surface of the first passive metal level are by the cambered surface of the first active metal level to the first passive metal level direction depression; The high temperature bimetal leaf is a disc; Comprise the second active metal level and the second passive metal level; The second active metal level and the second passive metal level are combined closely and are double-decker, and the upper surface of the second active metal level and the lower surface of the second passive metal level are by the cambered surface of the second active metal level to the second passive metal level direction depression.
2. as claimed in claim 1 three fast temperature control mains switches; It is characterized in that: also comprise pedestal (003); The pedestal center has the centre pilot hole (032) of running through the upper and lower end face, also has on the pedestal to run through upper and lower end face and the eccentric pilot hole (033) parallel with the centre pilot hole.
3. as claimed in claim 2 three fast temperature control mains switches is characterized in that: also comprise first push rod (008,008a, 008b, 008c; 008d, 008e), second push rod (007,007a, 007b, 007c; 007d, 007e) be positioned at switch case (001) first movable contact flat (015,015a, 015b, 015c; 015d, 015e), second movable contact flat (016,016a, 016b, 016c; 016d, 016e) and fixed touch plate (020,020a, 020b, 020c; 020d, 020e), first push rod passes the centre pilot hole, and an end of first push rod and middle temperature bimetal leaf are conflicted, and the other end of first push rod and first movable contact flat are inconsistent; First movable contact flat keeps separating with fixed touch plate, and second push rod passes eccentric pilot hole, and an end of second push rod and high temperature bimetal leaf are conflicted, and the other end of second push rod and second movable contact flat are inconsistent, and second movable contact flat and fixed touch plate keep in touch.
4. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005) is placed in first halfpace (009); High temperature bimetal leaf (006) is placed in second halfpace (010), and the passive layer of the passive layer of middle temperature bimetal leaf (005) and high temperature bimetal leaf (006) is adjacent; Centre bore (031) is on high temperature bimetal leaf (006), and push rod pilot hole (017) is on second movable contact flat (016); First push rod (008) passes centre bore (031), and centre pilot hole (032), push rod pilot hole (017), second push rod (007) passes eccentric pilot hole (033).
5. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005a) is placed in first halfpace (009); High temperature bimetal leaf (006a) is placed in second halfpace (010), and the passive layer of the passive layer of middle temperature bimetal leaf (005a) and high temperature bimetal leaf (006a) is adjacent; Centre bore is on high temperature bimetal leaf (006a), and the push rod pilot hole is on first movable contact flat (015a); First push rod (008a) passes centre bore, eccentric pilot hole, and second push rod (007a) passes the centre pilot hole, the push rod pilot hole.
6. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005b) is placed in second halfpace (010); High temperature bimetal leaf (006b) is placed in first halfpace (009), and the active layers of the active layers of middle temperature bimetal leaf (005b) and high temperature bimetal leaf (006b) is adjacent; The push rod pilot hole is on first movable contact flat (015b), and centre bore is on middle temperature bimetal leaf (005b); First push rod (008b) passes eccentric pilot hole, and second push rod (007b) passes centre bore, centre pilot hole, push rod pilot hole.
7. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005c) is placed in second halfpace (010); High temperature bimetal leaf (006c) is placed in first halfpace (009), and the passive layer of the passive layer of middle temperature bimetal leaf (005c) and high temperature bimetal leaf (006c) is adjacent; The push rod pilot hole is on second movable contact flat (016c), and centre bore is on middle temperature bimetal leaf (005c); First push rod (008c) passes eccentric pilot hole, the push rod pilot hole, and second push rod (007c) passes centre bore, the centre pilot hole.
8. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005d) is placed in first halfpace (009); High temperature bimetal leaf (006d) is placed in second halfpace (010), and the active layers of the passive layer of middle temperature bimetal leaf (005d) and high temperature bimetal leaf (006d) is adjacent; The push rod pilot hole is on second movable contact flat (016d), and centre bore is on high temperature bimetal leaf (006d); First push rod (008d) passes centre bore, the centre pilot hole, and the push rod pilot hole, second push rod (007d) passes eccentric pilot hole.
9. as claimed in claim 3 three fast temperature control mains switches; It is characterized in that: middle temperature bimetal leaf (005e) is placed in first halfpace (009); High temperature bimetal leaf (006e) is placed in second halfpace (010), and the passive layer of the active layers of middle temperature bimetal leaf (005e) and high temperature bimetal leaf (006e) is adjacent; The push rod pilot hole is on first movable contact flat (015e), and centre bore is on high temperature bimetal leaf (006e); First push rod (008e) passes centre bore, the centre pilot hole, and second push rod (007e) passes eccentric pilot hole, the push rod pilot hole.
10. like claim 3 to 9 arbitrary described three fast temperature control mains switches; It is characterized in that: said fixed touch plate comprises the first circular arc metallic plate (020a), the second circular arc metallic plate (020b) and transition metal plate (020c); The transition metal plate is a rectangular slab; The upper surface of transition metal plate is fixedly connected the right side of the first circular arc metallic plate; The lower surface of transition metal plate is fixedly connected the left side of the second circular arc metallic plate, and the first circular arc metallic plate is parallel with the second circular arc metallic plate, and the first circular arc metallic plate and the second circular arc metallic plate are at the level and smooth circular arc metallic plate that is projected as of vertical direction; The radian of radian and switch case inner chamber is corresponding, on the first circular arc metallic plate, has grafting through hole (016a).
11. as claimed in claim 10 three fast temperature control mains switches; It is characterized in that: said first movable contact flat comprise rectangle first on shell fragment (016b), the first transition shell fragment (016c) and first time shell fragment (016d); The right side of shell fragment is fixedly connected the upper surface of the first transition shell fragment on first; The right side of first time shell fragment is fixedly connected the lower surface of the first transition shell fragment; Shell fragment is parallel with first time shell fragment and be positioned at the same side of the first transition shell fragment on first; Have grafting through hole (016a) on first on the shell fragment, the strip through-hole that the semi-circular through hole that the first transition shell fragment lower end is offered and first time shell fragment right-hand member are offered is interconnected, and the width of first time shell fragment left side is less than the width of right-hand part; Said second movable contact flat comprise rectangle second on shell fragment, the second transition shell fragment and second time shell fragment; The right side of shell fragment is fixedly connected the upper surface of the second transition shell fragment on second; The right side of second time shell fragment is fixedly connected the lower surface of the second transition shell fragment; Shell fragment is parallel with second time shell fragment and be positioned at the same side of the second transition shell fragment on second; Have the grafting through hole on second on the shell fragment, the strip through-hole that the semi-circular through hole that the second transition shell fragment lower end is offered and second time shell fragment right-hand member are offered is interconnected, and the width of second time shell fragment left side is less than the width of right-hand part.
12. as claimed in claim 11 three fast temperature control mains switches; It is characterized in that: also comprise the conducting strip (021) that is positioned at switch case (001); Said conducting strip comprises grafting metallic plate (021b) and plug metallic plate (021c); The diagonal position of plug metallic plate respectively has a right angle breach; The grafting metallic plate has a right angle breach; The long sidewall of a right angle breach of a sidewall and plug metallic plate of grafting metallic plate right angle breach is fixedly connected, and is provided with the grafting protruding (021a) corresponding with the through hole of pegging graft (016a) with the grafting metallic plate end face of another parallel sidewalls of grafting metallic plate right angle breach, grafting metallic plate and plug metallic plate formation angle; The plug metallic plate passes and is fixed in the fixed bed in the switch case inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220027272 CN202487495U (en) | 2012-01-20 | 2012-01-20 | Three-speed temperature-control power supply switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220027272 CN202487495U (en) | 2012-01-20 | 2012-01-20 | Three-speed temperature-control power supply switch |
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| Publication Number | Publication Date |
|---|---|
| CN202487495U true CN202487495U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220027272 Expired - Fee Related CN202487495U (en) | 2012-01-20 | 2012-01-20 | Three-speed temperature-control power supply switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543576A (en) * | 2012-01-20 | 2012-07-04 | 龙口中宇机械有限公司 | Three-speed temperature controlled power switch |
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2012
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543576A (en) * | 2012-01-20 | 2012-07-04 | 龙口中宇机械有限公司 | Three-speed temperature controlled power switch |
| CN102543576B (en) * | 2012-01-20 | 2015-07-01 | 龙口中宇机械有限公司 | Three-speed temperature controlled power switch |
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