CN201166815Y

CN201166815Y - Temperature controller

Info

Publication number: CN201166815Y
Application number: CNU200820083158XU
Authority: CN
Inventors: 徐建群
Original assignee: Zhejiang Huaguang Electric Appliance Group Co Ltd
Current assignee: Zhejiang Huaguang Electric Appliance Group Co Ltd
Priority date: 2008-02-02
Filing date: 2008-02-02
Publication date: 2008-12-17
Anticipated expiration: 2018-02-02

Abstract

The utility model discloses a temperature controller which comprises an elastic press block and an adjusting cam. A protrusion II is formed at the bottom of the elastic press block. An insert sheet III and an insert sheet IV are arranged on two sides of the adjusting cam. The top end surface of the adjusting cam is the spiral curved surface. The protrusion II is rested against the spiral curved surface. A contact IV is arranged on the insert sheet IV. The insert sheet III is fixedly connected with one end of a teeter plate. A contact III is arranged at the other end of the teeter plate relative to the contact IV. A protrusion I is arranged on the teeter plate. A groove A and a groove B are circumferentially formed on the adjusting cam relative to the protrusion I. The adjusting cam and the casing and the switch cover of the switch box of the temperature controller are kept concentric. The temperature controller is not affected by the external temperature and has the advantages of high sensitivity, simple structure, reliable operation and small size.

Description

A kind of temperature controller

Technical field

The utility model relates to a kind of employing bimetallic type temperature controller.

Background technology

As shown in Figure 1, structural representation for existing temperature controller, comprise switch enclosure shell 1, its inside is provided with fixedly connected shell fragment I 111, shell fragment II 112 and shell fragment briquetting 113, shell fragment briquetting 113 props up the external peripheral surface of adjustment cam 4, shell fragment II 112 ends are provided with contact I 114, shell fragment I 111 fixedly connected inserted sheet I 11, inserted sheet I 11 connects bimetallic strip 116 by electric heating piece stator 115, electric heating piece stator 115 connects set screw 7, bimetallic strip 116 tops connect ceramic electrical backing 2, ceramic electrical backing 2 connects inserted sheet III 13 by torsion spring 3, inserted sheet III 13 is provided with contact III 131, also be provided with inserted sheet II 12 in the switch enclosure shell 1, inserted sheet IV 14, inserted sheet V 15 and inserted sheet VI 16, inserted sheet II 12 is provided with the contact II121 corresponding with contact I1 14, inserted sheet IV 14 connects seesaw I 141, seesaw I 141 is provided with the contact IV 142 corresponding with contact III 131, inserted sheet V 15 connects seesaw II 151, seesaw II 151 connects seesaw I 141 by intermediate mass 153, and seesaw II151 is provided with the contact V 152 corresponding with inserted sheet VI 16.Switch enclosure shell 1 is by the switch cover fitted seal, because adjustment cam 4 and the 1 vertical placement of switch enclosure shell make the concentricity of switch enclosure shell 1, switch cover and adjustment cam 4 be difficult to guarantee the connection of influencing contactor I114 and contact II121; There is the possibility of off normal, landing in intermediate mass 152 simultaneously, influences the connection of inserted sheet V 15 and inserted sheet VI 16; And this temperature controller complex structure, volume is big, and it is big to take up room.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of temperature controller, can effectively solve in the existing temperature controller because adjustment cam is vertically placed, be difficult to guarantee that it influence the problem of temperature controller operate as normal with the concentricity of switch enclosure shell, switch cover with owing to there is the possibility of off normal, landing in intermediate mass.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of temperature controller, comprise elastic press and adjustment cam, the elastic press bottom is provided with protruding II, the adjustment cam both sides are provided with inserted sheet III and inserted sheet IV, it is characterized in that: the top end face of adjustment cam is a spiral camber, projection II props up spiral camber, inserted sheet IV is provided with contact IV, fixedly connected seesaw one end of inserted sheet III, the seesaw other end is provided with the contact III corresponding with contact IV, and seesaw is provided with protruding I, and the adjustment cam circumference is provided with and protruding I corresponding groove A and groove B.

Further, elastic press is fixed on the shell fragment I, shell fragment I is provided with shell fragment II, shell fragment II end is provided with contact I, and the fixedly connected inserted sheet I in shell fragment I end also is provided with inserted sheet II in the temperature controller, inserted sheet II is provided with the contact II corresponding with contact I, inserted sheet I is connected with bimetallic strip by the electric heating piece stator, and bimetallic strip connects the ceramic electrical backing, and the ceramic electrical backing connects inserted sheet III by torsion spring.

The utility model makes adjustment cam and switch enclosure shell, switch cover guarantee concentricity easily owing to adopting technique scheme, and this temperature controller and the influence of ambient temperature variation nothing, and is highly sensitive, simple in structure, reliable operation of while, and it is little to take up room.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of existing temperature controller;

Fig. 2 is the structural representation of a kind of temperature controller of the utility model;

Fig. 3 is the upward view of Fig. 2;

Fig. 4 is contact III and a contact IV cooperation synoptic diagram in the utility model;

Fig. 5 is the structural representation of adjustment cam in the utility model.

Embodiment

Extremely shown in Figure 5 as Fig. 2, embodiment for a kind of temperature controller of the utility model, comprise switch enclosure shell 1 and switch cover 17, be provided with shell fragment I 511 in the switch enclosure shell 1, shell fragment I 511 tops welding shell fragment II 512, shell fragment II 512 ends riveted joint contact I 514, shell fragment I 511 bottoms welding shell fragment briquetting 513, shell fragment briquetting 513 props up adjustment cam 6 top end faces, shell fragment briquetting 513 bottoms are provided with protruding II 517, the top end face of adjustment cam 6 is a spiral camber 61, thereby the protruding II 517 of shell fragment briquetting 513 props up spiral camber 61 and moves along spiral camber 61 and make contact I 514 produce displacements, shell fragment I 511 ends and inserted sheet I 51 welding, inserted sheet I 51 is riveted on the switch enclosure shell 1.Inserted sheet I 51 connects bimetallic strip 516 by electric heating piece stator 515, electric heating piece stator 515 and bimetallic strip 516 welding, again with inserted sheet I 51 welding, insert ceramic electrical backing 2 on the bimetallic strip 516, ceramic electrical backing 2 connects inserted sheet III 53 by torsion spring 3, by torsion spring 3 electric current and inserted sheet III 53 on the ceramic electrical backing 2 are connected, inserted sheet III 53 is riveted on the switch enclosure shell 1.In the switch enclosure shell 1 also riveted joint inserted sheet II 52 and inserted sheet IV54 are arranged, riveted joint has the contact II 521 corresponding with contact I 514 on the inserted sheet II 52, electric heating piece stator 515 connects the set screw 7 that is used to regulate contact I 514 and contact II 521 first closures; Inserted sheet IV 54 and inserted sheet III 53 are positioned at adjustment cam 6 both sides, riveted joint has contact IV 541 on the inserted sheet IV 54, inserted sheet III 53 is welded on seesaw 531 1 ends, seesaw 531 other ends riveted joints has the contact III 532 corresponding with contact IV 541, seesaw is provided with protruding I 533, and adjustment cam 6 circumference are provided with and protruding I 533 corresponding groove A and groove B.

As shown in Figure 5, the C position is the initial position of shell fragment briquetting 513 protrusions II 517, and the D position is the final position of shell fragment briquetting 513 protrusions 517.By regulating adjustment cam 6, protruding II 517 is moved along the spiral camber 61 of adjustment cam 6 top end faces, thus contact I 514 on the control shell fragment II 512 and the break-make situation of the contact II 521 on the inserted sheet II 52, the control main circuit.The initial position of adjustment cam 6 is 0 °, and final position is 300 °, and the contact III 532 on contact IV on the inserted sheet IV 54 541 and the seesaw 531 disconnects all the other position closures when the initial position of adjustment cam 6 and final position.Be the initial position of adjustment cam 6 as shown in Figure 4, the protruding I 533 on the seesaw 531 embeds among the groove A of adjustment cam 6, and this moment, contact III532 and contact IV 541 disconnected; When adjustment cam 6 dextrorotations went to 300 °, protruding I 533 embedded among the groove B of adjustment cam 6, and this moment, contact III 532 and contact IV 541 disconnected; All closed at all the other contact, position III 532 and contact IV 541.Contact III 532 and contact IV 541 are used to control auxiliary circuit.

When adjustment cam 6 dextrorotations went between 0 °～100 ° ± 10 ° the position, contact I 514 and contact II 521 disconnected, this moment inserted sheet I 51 with not connection of inserted sheet II 52.When adjustment cam 6 dextrorotations go between 100 ° ± 10 °～300 ° ± 10 ° the position, contact I 514 and contact II 521 closures, this moment, inserted sheet I 51 connected with the electric current of inserted sheet II 52, had electric current to pass through on the ceramic electrical backing 2, thereby made ceramic electrical backing 2 produce heat.Heat conducts to bimetallic strip 516 is occured bending and deformation, bimetallic strip 516 compressing shell fragment II 512 disconnect contact I 514 and contact II 521, this moment, inserted sheet I 51 disconnected with inserted sheet II 52, there is not electric current to form, ceramic electrical backing 2 does not produce heat, begins to cool down recovery deformation.When ceramic electrical backing 2 recovers deformation, contact I 514 and contact II 521 begin closure again, inserted sheet I 51 connects with the electric current of inserted sheet II 52, ceramic electrical backing 2 produces heat and occurs bending and deformation, bimetallic strip 516 compressing shell fragment II 512 make contact I 514 and contact II 521 disconnect action and so forth.When adjustment cam 6 promptly was in the D position 300 ° ± 10 ° positions, contact I 514 and contact II 521 were closed all the time, and this moment, 2 heatings all the time of ceramic electrical backing were in normal hot state.Set screw 7 is used to regulate the first closure position of contact I 514 and contact II 521, covers switch cover at last, the installation fixing piece of packing into.

The utility model temperature controller and ambient temperature change does not have influence, highly sensitive, the good concentricity of adjustment cam and switch enclosure shell, switch cover, and reliable operation, it is little to occupy the space.

Claims

1, a kind of temperature controller, comprise elastic press (513) and adjustment cam (6), described elastic press (513) bottom is provided with protruding II (517), described adjustment cam (6) both sides are provided with inserted sheet III (53) and inserted sheet IV (54), it is characterized in that: the top end face of described adjustment cam (6) is spiral camber (61), described protruding II (517) props up described spiral camber (61), described inserted sheet IV (54) is provided with contact IV (541), described inserted sheet III (53) is fixedly connected on seesaw (531) one ends, described seesaw (531) other end is provided with the contact III (532) corresponding with described contact IV (541), described seesaw (531) is provided with protruding I (533), and described adjustment cam (6) circumference is provided with and described protruding I (533) corresponding groove A and groove B.

2, temperature controller according to claim 1, it is characterized in that: described elastic press (513) is fixed on the shell fragment I (511), shell fragment I (511) top is provided with shell fragment II (512), shell fragment II (512) end is provided with contact I (514), the fixedly connected inserted sheet I in described shell fragment I (511) end (51), also be provided with inserted sheet II (52) in the described temperature controller, described inserted sheet II (52) is provided with the contact II (521) corresponding with described contact I (514), described inserted sheet I (51) connects bimetallic strip (516) by electric heating piece stator (515), bimetallic strip (516) connects ceramic electrical backing (2), and described ceramic electrical backing (2) connects described inserted sheet III (53) by torsion spring (3).