CN201422761Y

CN201422761Y - Dry-burning preventing sensor of novel microcomputer electric rice cooker

Info

Publication number: CN201422761Y
Application number: CN2009200583936U
Authority: CN
Inventors: 颜陶
Original assignee: FOSHAN CHUANDONG THERMAL MAGNETIC Co Ltd
Current assignee: FOSHAN CHUANDONG THERMAL MAGNETIC Co Ltd
Priority date: 2009-06-12
Filing date: 2009-06-12
Publication date: 2010-03-17
Anticipated expiration: 2019-06-12

Abstract

The utility model discloses a dry-burning preventing sensor of a novel microcomputer electric rice cooker, which comprises a small cup, an aluminum cover, an outer spring, a thermister, a silica gel sleeve and an installation bottom plate. The dry-burning preventing sensor further comprises a micro switch. The micro switch comprises a shell, the shell is positioned by a switch supporting plate andis fixed with the small cup by the aluminum cover in a riveting manner, a groove is arranged at the top part of the shell, and the thermister which is arranged in the groove of the shell is in contact with the aluminum cover by the silica gel sleeve; a first terminal, a second terminal, a dynamic contact sheet, a switch button, a return bracket and a spring sheet are arranged in the shell; one end of the return bracket is arranged on the first terminal, the other end of the return bracket is corresponding to the upper end of the switch button, the lower end of the switch button is stretched out of the shell and is corresponding to the installation bottom plate, one end of the spring sheet is arranged on the first terminal, the spring sheet is matched with the dynamic contact sheet, and the dynamic contact sheet is separated from or communicated with the second terminal by the spring sheet. The dry-burning preventing sensor cannot affect work due to poor contact at the inner part of the sensor, and has the characteristics of reliable action and stable performance.

Description

A kind of novel micro computer electric cooker anti-dry sensor

Technical field

The utility model relates to a kind of sensor, more particularly, relates to a kind of novel micro computer electric cooker anti-dry sensor.

Background technology

Consult Fig. 1, it is the assembling schematic diagram of existing micro computer electric cooker anti-dry sensor.Its operation principle is: pot is 1 the time in putting down, and sensor integral body is descending, and outer spring 5 is compressed, and button 24 contacts with base plate 11 is installed, and inner spring 22 is compressed, and brace 23 separates with two-terminal 21, and two leads 10 are by thermistor 8 connections; In the time of in the taking-up pot 1, brace 23 is connected with two-terminal 21, and thermistor 8 is not worked.Adopt the micro computer electric cooker anti-dry sensor of said structure, its shortcoming is that brace 23 causes loose contact easily and influences work with two-terminal 21.

The utility model content

Technical problem to be solved in the utility model provides a kind of novel micro computer electric cooker anti-dry sensor, and this novel micro computer electric cooker anti-dry sensor can not influence work, its reliable in action, stable performance owing to the sensor internal loose contact.

In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme:

A kind of novel micro computer electric cooker anti-dry sensor, comprise cuvette, aluminium lid, outer spring, thermistor, silica gel sleeve pipe, base plate be installed; cuvette is connected with described installation base plate by outer spring, and the hangers of cuvette bottom links to each other with the installation base plate, and two leads connect by thermistor; It also comprises microswitch, and this microswitch comprises shell, and shell is fixed by aluminium lid and cuvette riveted by switch supporting plate location and this shell, is provided with groove in cover top portion, and thermistor places the interior silica gel sleeve pipe that also passes through of the groove of shell to contact with aluminium lid; Be provided with the first terminal, second terminal, movable contact spring, shift knob, reset cradle and shell fragment in the enclosure, reset cradle one end is contained on the first terminal, the reset cradle other end is corresponding with the shift knob upper end, shell and corresponding with the installation base plate is stretched out in the lower end of shift knob, shell fragment one end is contained on the first terminal and shell fragment matches with movable contact spring, and movable contact spring is separated by the shell fragment and second terminal or connects.

The utility model is owing to adopted said structure, in when pot in putting down, sensor integral body of the present utility model is descending, and outer spring is compressed, the shift knob of microswitch contacts with the installation base plate, when arriving certain decrement, movable contact spring hightails with second terminal under the effect of shell fragment, in the time of in the taking-up pot, shift knob is released, and the movable contact spring and second terminal are connected rapidly, and thermistor is not worked.So the utility model substitutes traditional mechanism by adopting a microswitch, rely on the kinetic energy of microswitch inner shrapnel to store and release, realize switching on and off rapidly between the first terminal, second terminal, thereby avoid as conventional art because the brace and the two-terminal of sensor cause loose contact easily and influence work, movable contact spring of the present utility model well and not can influence work by the shell fragment and second termination contact, the utility model reliable in action, stable performance.

After the detailed description of reading embodiment of the present utility model in conjunction with the accompanying drawings, it is clearer that characteristics of the present utility model and advantage will become.

Description of drawings

Fig. 1 is micro computer pot anti-dry sensor assembling schematic diagram of prior art;

Fig. 2 is the assembling schematic diagram of embodiment of the present utility model;

Fig. 3 is the schematic diagram of the microswitch of embodiment of the present utility model; And

Fig. 4 is the cut-away view of the microswitch of embodiment of the present utility model.

Among the figure: 1 for interior pot, 2 for aluminium lid, 3 for the switch supporting plate, 4 for cuvette, 5 for outer spring, 6 for microswitch, 7 for hangers, 8 for thermistor, 9 for the silica gel sleeve pipe, 10 for lead, 11 for install base plate, 12 for electric hot tray, 13 for the first terminal, 14 be that second terminal, 15 is button for brace, 24 for inner spring, 23 for terminal, 22 for plastic body, 21 for shell fragment, 20 for reset cradle, 19 for movable contact spring, 18 for shell, 17 for shift knob, 16.

The specific embodiment

With an embodiment the utility model is described in further detail below, but should illustrates, protection domain of the present utility model is not limited only to this.

Consult Fig. 2 to Fig. 4, a kind of novel micro computer electric cooker anti-dry sensor, comprise cuvette 4, aluminium lid 2, outer spring 5, thermistor 8, silica gel sleeve pipe 9, base plate 11 is installed; cuvette 4 is connected with described installation base plate 11 by outer spring 5; hangers 7 of cuvette 4 bottoms links to each other with installation base plate 11, and two leads 10 connect by thermistor 8.In the present embodiment, it also comprises microswitch 6, this microswitch 6 comprises shell 16, shell 16 is fixed by aluminium lid 2 and cuvette 4 riveteds by a switch supporting plate 3 location and this shell 16, be provided with groove at shell 16 tops, thermistor 8 places the interior silica gel sleeve pipe 9 that also passes through of the groove of shell 16 to contact with aluminium lid 2; In shell 16, be provided with the first terminal 13, second terminal 14, movable contact spring 17, shift knob 15, reset cradle 18 and shell fragment 19, reset cradle 18 1 ends are contained on the first terminal 13, reset cradle 18 other ends are corresponding with shift knob 15 upper ends, shell 16 and corresponding with installation base plate 11 is stretched out in the lower end of shift knob 15, shell fragment 19 1 ends are contained on the first terminal 13, shell fragment 19 matches with movable contact spring 17, movable contact spring 17 is separated by the shell fragment 19 and second terminal 14 or connects, promptly under the effect of shell fragment 19, movable contact spring 17 can hightail or connect with second terminal 14.

When present embodiment is used, pot is 1 the time in putting down, the sensor integral body of present embodiment is descending, outer spring 5 is compressed, the shift knob 15 of microswitch 6 contacts with installation base plate 11, when arriving certain decrement, movable contact spring 17 hightails with second terminal 14 under the effect of shell fragment 19; In the time of in the taking-up pot 1, shift knob 15 is released, and the movable contact spring 17 and second terminal 14 are connected rapidly, and thermistor 8 is not worked.

Though described embodiment of the present utility model in conjunction with the accompanying drawings; but those skilled in the art can make various distortion or modification within the scope of the appended claims; as long as be no more than the described protection domain of claim of the present utility model, all should be within protection domain of the present utility model.

Claims

1, a kind of novel micro computer electric cooker anti-dry sensor, comprise cuvette (4), aluminium lid (2), outer spring (5), thermistor (8), silica gel sleeve pipe (9), base plate (11) be installed; cuvette (4) is connected with described installation base plate (11) by outer spring (5); the hangers (7) of cuvette (4) bottom links to each other with installation base plate (11), and two leads (10) connect by thermistor (8); It is characterized in that: also comprise microswitch (6), this microswitch (6) comprises shell (16), shell (16) is fixed by aluminium lid (2) and cuvette (4) riveted by a switch supporting plate (3) location and this shell (16), be provided with groove at shell (16) top, thermistor (8) places the interior silica gel sleeve pipe (9) that also passes through of the groove of shell (16) to contact with aluminium lid (2); In shell (16), be provided with the first terminal (13), second terminal (14), movable contact spring (17), shift knob (15), reset cradle (18) and shell fragment (19), reset cradle (18) one ends are contained on the first terminal (13), reset cradle (18) other end is corresponding with shift knob (15) upper end, shell (16) and corresponding with installation base plate (11) is stretched out in the lower end of shift knob (15), shell fragment (19) one ends are contained on the first terminal (13) and shell fragment (19) matches with movable contact spring (17), and movable contact spring (17) is separated by shell fragment (19) and second terminal (14) or connects.