CN2742555Y

CN2742555Y - Heat sequencer

Info

Publication number: CN2742555Y
Application number: CN 200420090821
Authority: CN
Inventors: 杨奕
Original assignee: NINGBO JINHAI ELECTRONIC CO Ltd
Current assignee: Ningbo Zettler Electronics Co., Ltd.
Priority date: 2004-09-30
Filing date: 2004-09-30
Publication date: 2005-11-23
Anticipated expiration: 2014-09-30

Abstract

The utility model relates to a heat sequencer, consisting of an input connection strip, an output connection strip, a base and an installing bottom board. A thermal resistor PTC, a heat transferring basin, a bimetallic strip, a push rod, and an electroheat combination switch which is composed of the contact strips of moving and stationary springs are orderly provided between the input connection strip and the output connection strip. The temperature sensing element of the bimetallic strip is used to generate instant bounces when the PTC is electrified to heat and under the action of the predetermined temperature to drive the push rod act; the action contacts are one group to a plurality of groups, and the contact load reaches 30A240VAC; the weakness of low common temperature control and time-delay load is overcome, and the device is ensured not to cause hidden danger caused by the high load and the overheat. That the temperature controller has no time-delay function is broken through, and the outstanding advantages of time-delay switching on and time-delay power failure functions are achieved.

Description

Heat sequencer

Technical field

The utility model relates to a kind of temperature controller, particularly a kind of temperature controller that utilizes the thermistor ptc characteristics as the control switch device.

Background technology

Temperature controller is extensive use in household electrical appliance, and the switch element of this kind relay is most to adopt bimetal leaf, because bimetal leaf video disc area and shape restriction, its action is subjected to the many influencing factors of environment, and misoperation often takes place, thereby influences reliability.For many household electrical appliance that need deferred action, though for example employing electronic circuits such as electric heater, air-conditioning and ventilation equipment carry out on the control and time delay ripely, its ratio of performance to price majority is higher, and still have high capacity, overheated potential risk.

Summary of the invention

The purpose of this utility model is at adopting bimetal leaf as the existing defective of temperature detect switch (TDS) element in the said temperature relay, design a kind of compound temp control switch device, that this compound switching device has is simple in structure, working stability reliable, have delay function, and the characteristic of anti-high capacity is arranged.

The technical scheme that the utility model adopted is, Heat sequencer, it comprises input brace, output brace, pedestal and installation base plate, it is characterized in that importing and exporting the middle electric heating unit switch that is provided with thermistor PTC, heat transfer basin, bimetal leaf, push rod and active and static contact composition successively of brace; The one side of PTC contacts with the input brace, and PTC another side and heat transfer basin fix, and the one side of bimetal leaf contacts with the heat transfer basin, and another side contacts with the push rod bottom surface, and the upper end of push rod contacts with moving spring contact.

Disk shape semistor PTC simultaneously is mutually bonding with the metal basin that conducts heat, the heat transfer basin is the flat basin of staged inverted round table, each step is placed a slice bimetal leaf in the basin, by corresponding push rod and corresponding movable contact spring top contact mutually, form one group of above hot sequencing switch module on the every bimetal leaf.

Semistor is a barium titanate ceramics material, and the association of it and bimetal leaf finishes one or more groups contact jointly, reaches the effect of time-delay control.Many group control terminals and multiple fast connecting joint can fully satisfy client's instructions for use, can be installed on any position.Contact load reaches 30 amperes of 240V and exchanges, and has overcome general temperature control and the not high shortcoming of time-delay electric appliance load, fully satisfy actual needs, has broken through the defective that the temperature control product does not have delay function.

Description of drawings

Fig. 1 is the end view of three kinds of embodiment of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is the C-C cutaway view of Fig. 1.

Among the above-mentioned figure, 1 is snap ring, and 2 for installing base plate, and 3 is conductive plate, 4 is staple, and 5 is last moving spring brace, and 6 is top base, and 7 are following moving spring brace, 8 is bottom base, and 9 are long push rod, and 10 for input connects left weld tabs, and 11 is pedestal, 12 is PTC, and 13 is bimetal leaf, and 14 for input connects the backhand welding sheet, and 15 are the heat transfer basin, 16 for lacking push rod, and 17 are following static contact spring piece, and 18 is rivet, and 19 is fixed contact, 20 is the upper electrostatic spring sheet, and 21 is moving contact, and 22 is base seat lid, and 23 is last moving spring brace.

Embodiment

Fig. 1 represents to have 1 group, 2 groups and the 3 groups electric heating temperature control relays that are connected in parallel, be called for short Heat sequencer, its basic structure is to utilize bimetal leaf to make temperature-sensing element, automatically the predetermined temperature that produces of heating conducts to bimetal leaf moment and beats in semistor energising back, promote the movable contact action by ceramic push rod, reach the break-make of control circuit.

Fig. 2 represents a kind of embodiment, it forms automatically controlled temperature sensing device by a slice PTC and a slice bimetal leaf structure, the one side of PTC electric heating element 12 contacts with left weld tabs 10, the baseplane cementation of another side and heat transfer basin 15, the heat transfer basin is the flat basin of staged inverted round table, one deck annulus is arranged in the heat transfer basin, in one deck annulus circle, place a slice bimetal leaf 13, establish two vertical ceramic push rods that contact with bimetal leaf above it, the top of long push rod 9 holds contact mutually with last moving spring brace 23, and the top of short push rod 16 holds connection mutually with following moving spring brace 7.One group of contact switch that short push rod 16 promotions are made up of movable contact spring 7 and static contact 17, long push rod 9 promote to form another group contact switch by last moving spring brace 23 and fixed contact 19.PTC heating power when left and right sides weld tabs 10,14 is connected with the mains, heat is given bimetal leaf 15 by 15 conduction of heat transfer basin, behind the delay predetermined time, bimetal leaf 13 actions, simultaneously promotes down moving spring brace 7 and last moving spring brace 23 closures respectively, two groups of contacts 5 and the closed circuits connection of 20 and 7 and 17 whiles by long push rod 9 and short push rod 16.

Figure 3 shows that another example structure, it forms automatically controlled temperature-sensing element by a slice PTC and two bimetal leafs, heat transfer basin bottom surface is pasted a slice PTC12 admittedly, establish two layers of annulus circle that diameter is different in the heat transfer basin, lower floor is less than the upper strata, put a slice bimetal leaf 13 and 24 for every layer, the bottom of long push rod 9 and bimetal leaf 13 middle contacting, the upper surface holds contact mutually with last moving spring brace 23, the lower end of short push rod 16 and bimetal leaf 24 middle contacting, and the upper surface holds contact mutually with following moving spring brace 17, when PTC is logical is when being heated, respectively by length, short push rod action promotes up and down two groups respectively and touches and do, as required can synchronizing close, and also can asynchronous closure.

Figure 4 shows that the simplest a kind of embodiment of the utility model, it forms the electric heating the temperature module by a slice PTC and a slice bimetal leaf, the one side of PTC resistance 12 contacts with left weld tabs 10, the bottom surface of another side and heat transfer basin 15 is cementation mutually, bimetal leaf 13 is put on the annular steps of heat transfer basin 15, and the lower surface of push rod 9 contacts with the bimetal leaf upper surface, and the upper surface holds connection mutually with last movable contact spring brace 23, the push rod that sink when bimetal leaf 13 is heated is followed decline, the closing of contact.This is the most basic textural association.

Figure 1 shows that the combination of 3 kinds of structures, it is fixed together by mounting panel 2 and staple 4 and snap ring 1, according to using needs to also have different compound modes, also can singly plant structure and use separately.

Claims

1, Heat sequencer, it comprises input brace, output brace, pedestal and installation base plate, is provided with the electric heating unit switch that thermistor PTC (12), heat transfer basin (15), bimetal leaf (13), push rod (16) and active and static contact (7,17) are formed successively in the middle of it is characterized in that input and exporting brace; The one side of PTC contacts with input brace (10,14), PTC another side and heat transfer basin (15) fix, the one side of bimetal leaf (13) contacts with heat transfer basin (15), and another side contacts with push rod (16) bottom surface, and the upper end of push rod (16) contacts with moving spring contact (5).

2, Heat sequencer according to claim 1, the basin (15) that it is characterized in that conducting heat is the flat basin of staged inverted round table, is provided with 1～2 layer of annulus circle in the heat transfer basin, and a slice bimetal leaf (13) is set in one deck annulus circle.

3, Heat sequencer according to claim 1, it is characterized in that forming automatically controlled temperature sensing device by a slice PTC (12) and a slice bimetal leaf (13), establish two contacted vertical push rods above the bimetal leaf, long push rod (9) holds contact mutually with last moving spring brace (23), and short push rod (16) holds contact mutually with following moving spring brace (7).

4, Heat sequencer according to claim 1 is characterized in that forming automatically controlled temperature sensing device by a slice PTC (12) and two bimetal leafs (13), (24); The bottom of long push rod (9) contacts with bimetal leaf (13) is middle, and at a stalemate the contact pushed up with last moving spring brace (23) in the upper end; The lower end of short push rod (16) contacts with bimetal leaf (24) is middle, and the upper end holds contact mutually with following moving spring brace (17).

5, Heat sequencer according to claim 1, the combination that it is characterized in that three kinds of structures is fixed together fabricated structure by mounting panel (2) and staple (4) and snap ring (1).