CN2444307Y

CN2444307Y - Bipolar breaking temp. controller

Info

Publication number: CN2444307Y
Application number: CN 00240599
Authority: CN
Inventors: 杜立; 谭登峰
Original assignee: CHANGHENG GROUP CORP JIANGSU
Current assignee: CHANGHENG GROUP CORP JIANGSU
Priority date: 2000-10-12
Filing date: 2000-10-12
Publication date: 2001-08-22
Anticipated expiration: 2010-10-12

Abstract

The utility model relates to a bipolar breaking temperature controller, which is provided with a casing, a sylphon, a guide pipe which is connected with the sylphon, a temperature-sensing component and a capillary pipe. An inserting piece which is provided a contact point of the inserting piece is arranged at the inner wall of the casing, and the inserting piece extends outside the casing; the casing is also provided with a push rod which is provided with a spring piece, one end of the spring piece is connected with the inserting piece, and a contact point of the spring piece is arranged the other end of the spring piece corresponding to the contact point of the inserting piece; a pressing spring is respectively arranged below the sylphon and the push rod. The utility model can ensure consistency of working temperature and can ensure stability of performance.

Description

Bipolar break-off signal controller

The utility model relates to a kind of hand-reset formula temperature control equipment, particularly a kind of electric shower-bath, electric heater etc. of being used for, be used for the lasting heating of water heater after first order thermostat is malfunctioning, after reaching design temperature, this temperature control equipment is disconnected, cutting off the electricity supply by bipolar (live wire, ground wire), to prevent making accidents such as the too high explosion caused or fire of temperature because of continuing heating, is the secondary temperature controller of electric shower-bath, electric heater etc.

The operation principle of hand-reset formula temperature controller is that temperature sensing tube is inserted temperature-sensitive in the water heater, the highest control temperature of the thermostat of general water heater is below 80 degree, and the temperature control of such hand-reset formula thermostat is about 100 degree, therefore under normal circumstances, this thermostat is failure to actuate, only after first order thermostat is malfunctioning, when water heater continues heating, when temperature reaches the set point of hand-reset formula thermostat (secondary thermostat), the diaphragm of indent ejects the promotion push rod and makes contact separation on the bellows, and circuit disconnects thereupon and stops heating, resets as need, then make the diaphragm indent with the hand propelled push rod, the contact contact is connected circuit.The hand-reset formula anti-dry heating temperature controller of Shi Yonging mainly contains two kinds in the market, shown in accompanying drawing 1 and accompanying drawing 2.The workbench principle of thermostat shown in Figure 1 is after the temperature of temperature sensing tube reaches set point, the diaphragm of bellows ejects the promotion push rod disconnects circuit, the shortcoming of this type of thermostat is in the production process of this series products, because its temperature will lean on technology to guarantee fully, can't finish by regulating, therefore exist the one-pass finished rate low, increased the quality cost and the manufacture difficulty of product.The operation principle of thermostat shown in Figure 2 is after the temperature of temperature sensing tube reaches set point; make the instantaneous ejection of diaphragm energy of bellows by regulating spring, adjusting nut; therefore the disposable qualification rate of product is improved greatly; reduced quality cost; but because its tunable arrangement adopts screw adjusted, be subjected to the influence of service factors such as weather, transportation, assembling, temperature drift, unstable properties phenomenon appear in regular meeting; when drift is serious, also can influence the water heater operate as normal.

The purpose of this utility model is the shortcoming at the said temperature controller, designs a kind of stable performance, bipolar break-off signal controller that cost is low.

The technical scheme that realizes above-mentioned purpose is as follows: bipolar break-off signal controller, has housing, be located at the bellows with diaphragm of housing outer wall, the conduit that connects bellows, the temperature sensing part of connecting duct and be connected the capillary of the temperature sensing part other end, in inner walls and stretch out housing and be outside equipped with inserted sheet, inserted sheet respectively has two in the housing both sides, wherein two of the side ends of inserted sheet in housing have the inserted sheet contact, also has a push rod that is arranged on housing middle part, radially be connected with two reeds on the push rod, reed one end is connected with the inserted sheet of housing one side, the corresponding inserted sheet contact other end is provided with reed contact, also is provided with a stage clip below the diaphragm of bellows and push rod.

By aforementioned, described temperature sensing part is a temperature sensing tube.

Further, the part that is connected with temperature sensing part of described conduit is with sleeve pipe.

The utility model according to aforementioned schemes, before assembling, at first, will test good Power Component (bellows, conduit etc.) then and carry out the temperature stepping, different assemblies will be equipped with the stage clip of different-stiffness according to technological requirement stage clip dynamometry stepping, like this, after the thermostat that assembles had been heated, Power Component expanded, owing to be subjected to the stage clip thrust, so Power Component can reach the working point by the job requirement of setting, and has so just guaranteed the consistency of temperature, the stability of performance.

Below in conjunction with description of drawings:

Fig. 1 is existing a kind of hand-reset formula temperature control device structure schematic diagram;

Fig. 2 is existing another kind of hand-reset formula temperature control device structure schematic diagram;

Fig. 3 is the structural representation of the utility model embodiment;

Fig. 4 is the schematic top plan view of Fig. 3.

Among Fig. 1, the 101-temperature sensing tube; The 102-sleeve pipe; The 103-inserted sheet; The 104-housing; The 105-push rod; The 106-contact; The 107-diaphragm; The 108-bellows; The 109-capillary; The 110-conduit;

Among Fig. 2, the 201-temperature sensing part; The 202-sleeve pipe; The 203-inserted sheet; The 204-housing; The 205-adjusting nut; The 206-spring; The 207-contact; The 208-diaphragm; The 209-push rod; The 210-bellows; The 211-conduit;

Fig. 3 and Fig. 4 can find out, bipolar break-off signal controller, have housing 4, be located at the temperature sensing tube 1 of the bellows with diaphragm 89 of housing 4 outer walls, the conduit 10 that connects bellows 9, connecting duct 10 and be connected the capillary 11 of temperature sensing tube 1 other end, the part that conduit 10 is connected with temperature sensing tube 1 is with sleeve pipe 2.At housing 4 inwalls and stretch out housing 4 and be outside equipped with inserted sheet 3, inserted sheet 3 respectively has two in the housing both sides, two ends of inserted sheet 3 in housing 4 in left side have inserted sheet contact 7 among the figure, push rod 5 is arranged on housing 4 middle parts, radially be connected with two reeds 6 on the push rod 5, reed 6 one ends are connected with the inserted sheet 3 on housing 4 right sides, and the left end of corresponding inserted sheet contact 7 is provided with reed contact 12, also are provided with a stage clip 13 between below the diaphragm 8 of bellows 9 and the push rod 5.

Claims

1, bipolar break-off signal controller, has housing, be located at the bellows with diaphragm of housing outer wall, the conduit that connects bellows, the temperature sensing part of connecting duct and be connected the capillary of the temperature sensing part other end, in inner walls and stretch out housing and be outside equipped with inserted sheet, inserted sheet respectively has two in the housing both sides, wherein two of the side ends of inserted sheet in housing have the inserted sheet contact, also has a push rod that is arranged on housing middle part, radially be connected with two reeds on the push rod, reed one end is connected with the inserted sheet of housing one side, the corresponding inserted sheet contact other end is provided with reed contact, it is characterized in that: also be provided with a stage clip below the diaphragm of bellows and push rod.

2, bipolar break-off signal controller according to claim 1, it is characterized in that: described temperature sensing part is a temperature sensing tube.

3, bipolar break-off signal controller according to claim 1 and 2, it is characterized in that: the part that described conduit is connected with temperature sensing part is with sleeve pipe.