CN203444359U

CN203444359U - Liquid heating container controller having multistage protection function

Info

Publication number: CN203444359U
Application number: CN201320149417.5U
Authority: CN
Inventors: 赵海杰
Original assignee: Zhejiang Dawei Electronic Co Ltd
Current assignee: Zhejiang Dawei Electronic Co Ltd
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2014-02-19
Anticipated expiration: 2023-03-29

Abstract

A liquid heating container controller having a multistage protection function is provided. The utility model discloses a multistage protection mechanism which offers multifunctional temperature segment protection and is provided with multiple protection devices which have an actuating function and are disposed in on a unipolar electric loop. The controller mainly solves utilization performance problems of dry burning of a temperature controller and protection of an actuating temperature-sensitive controller. With the temperature sensing performance of a heating disk, a protection tripping point on an outer side of an actuator is driven to be disconnected firstly to cut off the power supply, and in case of any interference, another temperature sensing point continuous the temperature sensing to driven the actuation. The liquid heating container controller is novel in structure, effectively diversifies the protection structures of temperature control products, and can effectively guarantee the protection performance of a temperature controller.

Description

The heating vessel controller with multi-stage protection function

Technical field

The utility model patent relates to a kind of controller of heating vessel, especially for heating vessels such as insulating pot, coffee pots, has the device for controlling liquid heating of anti-dry defencive function.

Background technology

All there is the phenomenon that dry combustion method occurs while there is no liquid in container in common heating vessel, particularly electric-heating containers such as insulating pot, coffee pot in the market, not only can directly affect the serviceable life of electric-heating container, also easily causes security incident.

For the problems referred to above, Chinese patent application 95194418.5 discloses a kind of all-in-one-piece connector and heat controller assembly of installing at container bottom, this scheme is owing to being whole parts, vessel bottom head is stressed to connector, cause the heat controller also can be stressed and be out of shape, this scheme requires the necessary free movement of only a pair of porcelain rod, as the stuck or akinesia of porcelain rod, and guarantee that trip(ping) lever is without external action, if any foreign matter, enter stuck or interfere, because the responsive controller of dry combustion method protection activation temperature only has single actuating defencive function, and there are following several critical defects in this design: one, dry combustion method sheet is connected on iron-clad, when being installed on kettle, iron-clad is subject to the impact of screw pulling force, form certain deflection, occur that the gap between ceramic rod and two gold increases, cause the responsive controller actuating of dry combustion method protection activation temperature to lose efficacy, two and the function singleness of this actuator, there is disabler producing if any foreign matter interfere or damage in the situation that, affect product usability.

For this reason, it is very necessary proposing a kind of device for controlling liquid heating that improves design.

Summary of the invention

Technical problem to be solved in the utility model is for the defect in the above-mentioned state of the art, and a kind of control device that possesses the heating vessel of overheated multi-stage protection function is provided.

To achieve these goals, technical solution of the present utility model is such:

A heating vessel control device for multi-stage protection function, comprising: base for supporting (19), trip(ping) lever (6), iron-clad (3), heat-sensitive duplex metal actuator; Wherein: described trip(ping) lever (6) is installed on the centre position close to base for supporting (19), trip(ping) lever (6) one end is provided with prong, and its afterbody is arranged on the top that temperature is controlled bimetallic actuator; The first heat-sensitive duplex metal actuator (1) and the second heat-sensitive duplex metal actuator (2) are installed on described iron-clad (3), and first, second heat-sensitive duplex metal actuator (1,2) has respectively the mutual linked switch that control circuit opens and closes; Described the first spring plate (16) connects little electricity ring (21) and is installed on and on base for supporting (19), is arranged on the second static contact (12) below, the first spring plate (16) is riveted the first contact (15), and the second static contact (12) is riveted the second contact (13) and formed a switch contacts; The second spring plate (18) large electricity ring of connection (22) is installed on base for supporting (19) and is arranged on the first static contact (11) below, and the second spring plate (18) and the first static contact (11) are riveted respectively the 3rd, the 4th contact (14,17) and formed another switch contacts; First, second porcelain rod (7,10) is respectively in mobilizable two small through hole that are installed on base for supporting (19), the 3rd porcelain rod (8) is installed in the through hole of little location plastic cement piece (9), and little location plastic cement piece (9) is installed in the middle cubic pilot hole of base for supporting (19); Three, the lower plane of the second porcelain rod (8,10) offsets and is connected with the second spring plate (18), the lower plane of the first porcelain rod (7) offsets and is connected with the first spring plate (16), and the upper plane layout of the first, the 3rd, second porcelain rod (7,8,10) is below the kick activation zone of heat-sensitive duplex metal actuator; Described the first spring plate (16) promotes trip(ping) lever (6) and rotates, and disconnects the switch contacts of the second, first contact (13,15) side.

Separately know, described the second heat-sensitive duplex metal actuator (2) is provided with first, second temperature zone (B10, B11), when the second heat-sensitive duplex metal actuator (2) temperature-sensitive kick upset temperature zone that is heated is changed first, second activation zone (B12, B13) into and promoted respectively second, third porcelain rod (10,8), first activation zone (B12) of the second heat-sensitive duplex metal actuator (2) promotes the second porcelain rod (10) action, the second porcelain rod (10) promotes the second spring plate (18) breaking-off contact switch downwards, when the second porcelain rod (10) lost efficacy, switch contacts can not disconnect, but another temperature zone will promote the 3rd porcelain rod (8) action, the 3rd porcelain rod (8) promotes the second spring plate (18) breaking-off contact switch downwards, thereby realize the second class protection of the second heat-sensitive duplex metal actuator (2), first heat-sensitive duplex metal actuator (1) of one end promotes the first porcelain rod (7) in addition, the first porcelain rod (7) continues to move downward disconnection the first spring plate (16), whole circuit will be realized multi-stage protection.

In the middle of the heat-sensitive duplex metal actuator that the utility model is controlled monolithic temperature section, circular hole point is installed on control body, and the downward kick in its cusp temperature zone, oval-shaped both sides under overheated condition, each temperature-sensitive unit activates; The corresponding body of controlling is provided with the same group of make and break contact of porcelain rod disconnection that a pair of promotion disconnects; And at the be heated actuator of kick of two temperature sections, whichever is put first kick and disconnected, all can overturn downwards as activation zone in the temperature zone of actuating unit, effectively disconnects this group make and break contact and cut off the power supply of the controller of heating vessel; Realize the temperature section of a heat-sensitive duplex metal actuator and control, be i.e. second-level protection function.

An other single temperature bimetallic strip of the utility model is installed on to be controlled on body, under overheated condition, activation zone kick wherein activates, corresponding actuating unit below is provided with a porcelain rod that promotes to disconnect and disconnects another group make and break contact, and the action downwards of the activation zone kick at actuating unit edge is opened this group switch tie point and cut off the controller power source of heating vessel; Form three-level protective function with an original side temperature section bimetallic actuator.

Owing to adopting technique scheme, the utlity model has following advantage and effect:

The utility model is installed on the heat-sensitive duplex metal actuator of controlling on body will realize three-level protective function, and one of sheets is realized temperature section control; The intermediate connection point of this sheet must be made very exquisite, careful, and the temperature on same is variant, height minute; Must first move a temperature zone, moving behind another temperature zone; Thereby realization overheated second class protection under different temperature points activates the controller power source of pushing same switch tie point open and cutting off heating vessel.

Accompanying drawing explanation

Fig. 1 is the utility model perspective view;

Fig. 2 is the utility model electric loop device schematic diagram;

Fig. 3 is the schematic diagram of the utility model temperature section bimetallic actuator.

Embodiment

By Fig. 1, Fig. 2, illustrated, a kind of heating vessel control device with multi-stage protection function, comprising: base for supporting 19, trip(ping) lever 6, iron-clad 3, heat-sensitive duplex metal actuator; Wherein: described trip(ping) lever 6 is installed on the centre position close to base for supporting 19, trip(ping) lever 6 one end are provided with prong, and its afterbody is arranged on the top that temperature is controlled bimetallic actuator; The first heat-sensitive duplex metal actuator 1 and the second heat-sensitive duplex metal actuator 2 are installed on described iron-clad 3, and first, second heat-sensitive duplex metal actuator 1,2 has respectively the mutual linked switch that control circuit opens and closes; The described little electricity ring 21 of the first spring plate 16 connection is installed on base for supporting 19 and is arranged on the second static contact 12 belows, and first spring plate 16 riveted joint the first contact 15, the second static contacts 12 are riveted a switch contacts of the second contacts 13 formations; The large electricity ring 22 of the second spring plate 18 connection is installed on base for supporting 19 and is arranged on the first static contact 11 belows, and the second spring plate 18 and the first static contact 11 are riveted respectively the 3rd, the

4th contact

14,17 and formed another switch contacts; First,

second porcelain rod

7,10 is respectively in mobilizable two small through hole that are installed on base for supporting 19, and the 3rd porcelain rod 8 is installed in the through hole of little location plastic cement piece 9, and little location plastic cement piece 9 is installed in the cubic pilot hole in the middle of base for supporting 19; Three, the lower plane of the

second porcelain rod

8,10 offsets and is connected with the second spring plate 18, the lower plane of the first porcelain rod 7 offsets and is connected with the first spring plate 16, and on the first, the 3rd,

second porcelain rod

7,8,10 plane layout below the kick activation zone of heat-sensitive duplex metal actuator; The first described spring plate 16 promotes trip(ping) lever 6 and rotates, and disconnects the switch contacts of the second,

first contact

13,15 1 sides.

By Fig. 3, illustrated, the second heat-sensitive duplex metal actuator 2 is provided with first, second temperature zone B10, B11, when the second heat-sensitive duplex metal actuator 2 temperature-sensitive kick upset temperature zone that is heated is changed first, second activation zone B12, B13 into and promoted respectively second,

third porcelain rod

10,8, the first activation zone B12 of the second heat-sensitive duplex metal actuator 2 promotes the second porcelain rod 10 actions, the second porcelain rod 10 promotes the second spring plate 18 breaking-off contact switches downwards, when the second porcelain rod 10 lost efficacy, switch contacts can not disconnect, but another temperature zone will promote the 3rd porcelain rod 8 actions, the 3rd porcelain rod 8 promotes the second spring plate 18 breaking-off contact switches downwards, thereby realize the second class protection of the second heat-sensitive duplex metal actuator 2, first heat-sensitive duplex metal actuator 1 of one end promotes the first porcelain rod 7 in addition, the first porcelain rod 7 continues to move downward disconnection the first spring plate 16, whole circuit will be realized multi-stage protection.

Control device is provided with electricity loop, the two poles of the earth and a utmost point earth leakage protection assembly, and electricity loop, the two poles of the earth is provided with independent heat-sensitive duplex metal actuator and temperature-controlling module.Under the control device normal condition of heating vessel, there is a pair of the second,

first contact

13,15 in temperature control unit 20, trip(ping) lever 6 and shell fragment 4 action disconnecting circuits, and realize temperature, control.Two first, second independent heat-sensitive duplex metal actuators 1,2 that the two poles of the earth are provided with refer under the state losing efficacy at temperature-controlling module 20 realizes defencive function; The first heat-sensitive duplex metal actuator 1 receives the temperature nature temperature-sensitive of outside electro-heat equipment and implements to activate upset, back down the first porcelain rod 7, the first porcelain rod 7 continues to move down pushes the second,

first contact

13,15 separation that the first spring plate 16 makes a pair of formation loop open, and the first spring plate 16 off-states are backed down trip(ping) lever 6 downwards and realized defencive function; The same temperature nature temperature-sensitive that receives outside electro-heat equipment of the second heat-sensitive duplex metal actuator 2 of another utmost point implements to activate upset simultaneously, and the second heat-sensitive duplex metal actuator 2 both sides are provided with two first, second temperature zone B10, B11, the first temperature zone B10 is temperature spot first action on the low side during due to Element Design, back down the second porcelain rod 10, thereby continuing to move down, the second porcelain rod 10 pushes a pair of the 3rd, the 4th contact 14, the 17 separated power down function that the second spring plate 18 is realized another loop open, the 3rd porcelain rod 8 free-fallings in the situation that circuit disconnects; Suppose that the first temperature zone B10 can not activate in temperature-sensitive upset, now the second temperature zone B11 temperature-sensitive that continues to be heated drives the 3rd porcelain rod 8 actions to back down, thereby the 3rd porcelain rod 8 is pushed a pair of the 3rd, the 4th contact 14, the 17 separated power down function that the second spring plate 18 is realized another loop open; There are three grades of above temperature protection functions in whole electric loop, makes the control device of heating vessel in use in safety circuit released state.

Claims

1. a heating vessel controller with multi-stage protection function, comprising: base for supporting (19), trip(ping) lever (6), iron-clad (3), heat-sensitive duplex metal actuator; It is characterized in that: described trip(ping) lever (6) is installed on the centre position close to base for supporting (19), trip(ping) lever (6) one end is provided with prong, and its afterbody is arranged on the top that temperature is controlled bimetallic actuator; The first heat-sensitive duplex metal actuator (1) and the second heat-sensitive duplex metal actuator (2) are installed on described iron-clad (3), and first, second heat-sensitive duplex metal actuator (1,2) has respectively the mutual linked switch that control circuit opens and closes; The first spring plate (16) connects little electricity ring (21) and is installed on and on base for supporting (19), is arranged on the second static contact (12) below, the first spring plate (16) is riveted the first contact (15), and the second static contact (12) is riveted the second contact (13) and formed a switch contacts; The second spring plate (18) large electricity ring of connection (22) is installed on base for supporting (19) and is arranged on the first static contact (11) below, and the second spring plate (18) and the first static contact (11) are riveted respectively the 3rd, the 4th contact (14,17) and formed another switch contacts; First, second porcelain rod (7,10) is respectively in mobilizable two small through hole that are installed on base for supporting (19), the 3rd porcelain rod (8) is installed in the through hole of little location plastic cement piece (9), and little location plastic cement piece (9) is installed in the middle cubic pilot hole of base for supporting (19); Three, the lower plane of the second porcelain rod (8,10) offsets and is connected with the second spring plate (18), the lower plane of the first porcelain rod (7) offsets and is connected with the first spring plate (16), and the upper plane layout of the first, the 3rd, second porcelain rod (7,8,10) is below the kick activation zone of heat-sensitive duplex metal actuator; The first spring plate (16) promotes trip(ping) lever (6) and rotates, and disconnects the switch contacts of the second, first contact (13,15) side.

2. the heating vessel controller with multi-stage protection function according to claim 1, it is characterized in that: described the second heat-sensitive duplex metal actuator (2) is provided with first, second temperature zone (B10, B11), when the second heat-sensitive duplex metal actuator (2) temperature-sensitive kick upset temperature zone that is heated is changed first, second activation zone (B12, B13) into and promoted respectively second, third porcelain rod (10,8), first activation zone (B12) of the second heat-sensitive duplex metal actuator (2) promotes the second porcelain rod (10) action, the second porcelain rod (10) promotes the second spring plate (18) breaking-off contact switch downwards, when the second porcelain rod (10) lost efficacy, switch contacts can not disconnect, but another temperature zone will promote the 3rd porcelain rod (8) action, the 3rd porcelain rod (8) promotes the second spring plate (18) breaking-off contact switch downwards, thereby realize the second class protection of the second heat-sensitive duplex metal actuator (2), first heat-sensitive duplex metal actuator (1) of one end promotes the first porcelain rod (7) in addition, the first porcelain rod (7) continues to move downward disconnection the first spring plate (16), whole circuit will be realized multi-stage protection.