CN2786895Y

CN2786895Y - Knob type controlling equipment of electric heater

Info

Publication number: CN2786895Y
Application number: CN 200520058021
Authority: CN
Inventors: 郜天宇
Original assignee: 郜天宇
Current assignee: Shenzhen Sunzone Electrical Appliances Ltd
Priority date: 2005-04-30
Filing date: 2005-04-30
Publication date: 2006-06-07
Anticipated expiration: 2015-04-30

Abstract

The utility model relates to a knob type controlling device of an electric heater, which is provided with a panel (10) and an eyeglass (20) which is connected with the panel (10). A knob (30) which is used for setting time, temperature or operating modes is arranged on the panel (10) and the knob (30) is connected with a code switch (40). The lower end of the code switch is fixed with a main PCB plate (50) which is connected with a display and a power supply PCB plate (60) and a control circuit (70) is arranged on the PCB plate (50). Operations of multifunction can be achieved through a knob by the utility model, and thus the use and operations of users are simplified and convenient.

Description

The knob control device of electric heater

Technical field

The utility model relates to the control device of electric heater, particularly relates to the knob control device that knob of a kind of usefulness can carry out the electric heater of multiple function setting.

Background technology

In people's life, using multiple electric heater, as electric calorifier, electric heater etc., all be provided with the button or the button that are provided with and regulate usefulness on the electric heater, conventional electric heater all adopts mostly and touches key switch, and this switching manipulation is convenient inadequately, especially for the electric heater of being with timing, temperature adjustment function, need a lot of buttons to be set on control panel, when operation, need repetitive operation repeatedly just can choose needed function according to its function.

Summary of the invention

The utility model is intended to overcome the deficiency of conventional electric heater control device, and a kind of knob control device that a knob can be realized the electric heater of multiple feature operation that passes through is provided, to simplify and handled easily.

For achieving the above object, the utility model provides a kind of knob control device of electric heater, the eyeglass 20 that this device has a panel 10 and is attached thereto, the knob 30 that is used for setting-up time, temperature or mode of operation is housed on the panel 10, this knob is connected with code switch 40, the lower end of code switch and main PCB plate 50 are fixing, and the main PCB plate then is connected with demonstration and power supply pcb board 60, is provided with control circuit 70 on pcb board 50.

Pattern and timing button 81 and the button 82 of shaking the head also are housed on panel 10.

Knob 30 is contained in the recessed installed surface 11 of panel 10, and knob 30 is connected with code switch 40 by the adapter sleeve 31 at its inboard center.

The upper end of the rotating shaft 41 of code switch 40 is connected with adapter sleeve 31 stationary fits of knob 30, and the lower end of rotating shaft 41 and code switch main body 42 are rotatably connected, and code switch main body 42 is fixed on the main PCB plate 50 by fastener 43.

Control circuit 70 is made of encoder 71, single-chip microcomputer 72 and peripheral circuit thereof, temperature sense treatment circuit 73, sensitive switch K1, K2 and triode Q1, Q2, Q3, and described encoder 71, temperature sense treatment circuit 73, sensitive switch K1, K2 and triode Q1, Q2, Q3 all link to each other with single-chip microcomputer 72.

Temperature sense treatment circuit 73 is by resistance R 29, R30, and capacitor C 13, CON5 constitute, and wherein, R30 is connected with single-chip microcomputer 72 respectively with CON5.

Output at described control circuit 70 is connected with LED, LCD and the charactron that is used to show electric heater mode of operation, design temperature and timing.

Good effect of the present utility model is that it has changed the feature operation mode of traditional electric heater unit, thereby generous user.Owing to can realize starting or stoping of electric heater unit and select the working method (wind shelves, low grade, middle-grade, high-grade, automatic transmission) of electric heater unit by a knob, and can select the timing working time of electric heater unit, therefore simplified operating procedure, easy to operate.

Description of drawings

Fig. 1 is a profile schematic perspective view of the present utility model.

Fig. 2 is a parts exploded perspective schematic diagram of the present utility model.

Fig. 3 is a structure cutaway view of the present utility model.

Fig. 4 is circuit theory diagrams of the present utility model.

Embodiment

Consult Fig. 1～3, the eyeglass 20 that the knob control device of electric heater of the present utility model has a panel 10 and is attached thereto, this panel is provided with a recessed semicircle installed surface 11, be used to install knob 30, also be provided with the

button hole

12,13 that is used for Installation Modes and the timing button 81 and the button 82 of shaking the head on the panel, the panel bottom is provided with and connects the joint pin 14 that the main PCB plate is used.Knob 30 is housed on panel 10, and this knob is the uncovered cover-shaped body in bottom, and its top is provided with the depression 32 of dialling its rotation, and its inboard center is provided with adapter sleeve 31, is used for being connected with code switch 40.Knob 30 is contained in the recessed installed surface 11 of panel 10, but by turning knob 30 setting-up times, temperature or mode of operation.Knob 30 is connected with code switch 40 by the adapter sleeve 31 and the joint pin 14 at its inboard center, this code switch adopts the commercially available prod, it is made of rotating shaft 41 and code switch main body 42, the upper end of its rotating shaft 41 is connected with adapter sleeve 31 stationary fits of knob 30, insert in the hole of code switch main body 42 rotationally the lower end of rotating shaft 41, and rotating shaft 41 can be rotated synchronously with knob.Code switch main body 42 is fixed on the main PCB plate 50 by fastener 43.Described main PCB plate is and is horizontally disposed with, and the one end is connected with code switch 40, and the other end is connected with eyeglass 20.On main PCB plate 50, be provided with control circuit 70, this control circuit as shown in Figure 4, it is by encoder 71, single-chip microcomputer 72 and peripheral circuit thereof, temperature sense treatment circuit 73, sensitive switch K1, K2, described encoder 71 adopts conventional coding circuit, its PA1 pin links to each other with the respective foot of single-chip microcomputer 72 respectively with the PA2 pin, its effect is when code switch during with 1 pin conducting, and the 5th pin level moment of single-chip microcomputer reduces, and handles for single-chip microcomputer; On the other hand, because its four pin ground connection makes 3 pin or 5 pin produce a low level signal of giving single-chip microcomputer 72 procedure identification work when forward or reverse.Described single-chip microcomputer 72 adopts HT48R05A-1 type single-chip microcomputer, and its inside solidification has program, and it can be according to the signal controlling monoblock pcb board of operation generation.The peripheral circuit of single-chip microcomputer comprises capacitor C 1, C2, triode Q1, Q2, Q3, and wherein, capacitor C 1, C2 are filter capacitor, are used for the filtering AC signal, obtain more level and smooth direct voltage, and have anti-interference effect.Triode Q1, Q2 are used to control the common port that is contained in the charactron on the pcb board, and triode Q3 is used to control the operating voltage that is contained in a plurality of LED lamps on the pcb board.Described temperature sense treatment circuit 73 is by resistance R 29, R30, and capacitor C 13, CON5 constitute, and wherein, resistance R 30 is connected with the PC0 pin of single-chip microcomputer, and CON5 is connected with the PC1 pin of single-chip microcomputer, and capacitor C 1 is connected between resistance R 29 and the R30.This circuit can be single-chip microcomputer 72 provides a resistance (RT) to vary with temperature and the level signal that changes is handled for Single Chip Microcomputer (SCM) program identification.Described sensitive switch K1, K2 are connected with PB0, the PB1 pin of single-chip microcomputer, when pressing sensitive switch K1, K2 respectively, can make single-chip microcomputer 6 pin and 7 pin level moments descend and handle for Single Chip Microcomputer (SCM) program.Pattern and timing button 81 and the button 82 of shaking the head are housed in the

button hole

12,13 on panel 10, are used to select use pattern and adjustment time.

Output at described control circuit 70 is connected with LED, LCD and the charactron that is used to show electric heater mode of operation, design temperature and timing, can carry out the selection and the adjustment of electric heater mode of operation, design temperature and timing easily by rotary knob 30.

Claims

1, a kind of knob control device of electric heater, it is characterized in that, the eyeglass (20) that it has a panel (10) and is attached thereto, the knob (30) that is used for setting-up time, temperature or mode of operation is housed on the panel (10), this knob is connected with code switch (40), the lower end of code switch and main PCB plate (50) are fixing, and the main PCB plate then is connected with demonstration and power supply pcb board (60), is provided with control circuit (70) on pcb board (50).

2, the knob control device of electric heater according to claim 1 is characterized in that, pattern and timing button (81) and the button of shaking the head (82) also are housed on panel (10).

3, the knob control device of electric heater according to claim 1, it is characterized in that, described knob (30) is contained in the recessed installed surface (11) of panel (10), and knob (30) is connected with code switch (40) by the adapter sleeve (31) at its inboard center.

4, the knob control device of electric heater according to claim 1, it is characterized in that, the upper end of the rotating shaft (41) of described code switch (40) is connected with adapter sleeve (31) stationary fit of knob (30), the lower end of rotating shaft (41) and code switch main body (42) are rotatably connected, and code switch main body (42) is fixed on the main PCB plate (50) by fastener (43).

5, the knob control device of electric heater according to claim 1, it is characterized in that, described control circuit (70) is made of encoder (71), single-chip microcomputer (72) and peripheral circuit thereof, temperature sense treatment circuit (73), sensitive switch K1, K2, and described encoder (71), temperature sense treatment circuit (73), sensitive switch K1, K2 all link to each other with single-chip microcomputer (72).

6, the knob control device of electric heater according to claim 5 is characterized in that, described temperature sense treatment circuit (73) is by resistance R 29, R30, and capacitor C 13, CON5 constitute, and wherein, R30 is connected with single-chip microcomputer (72) respectively with CON5.

7, the knob control device of electric heater according to claim 5 is characterized in that, is connected with LED, LCD and the charactron that is used to show electric heater mode of operation, design temperature and timing at the output of described control circuit (70).