A kind of electromagnetic oven that prevents that face-piece from being scalded
Technical field
The present invention relates to household electrical appliance technical field, relate in particular to a kind of electromagnetic oven that prevents that face-piece from being scalded.
Background technology
Existing electromagnetic oven face-piece mostly adopts plastic cement such as ABS to make, can bear very the specific glass of high-temperature and make and be installed in the general employing of black brilliant plate on the face-piece, because it is nearer from the pan center that face-piece is installed the peripheral glue position of black brilliant plate, when the user uses electromagnetic oven, when if pan bottom is departed from black brilliant plate silk-screen center or is used big pan greater than the brilliant plate limited range of electromagnetism furnace black, the peripheral glue position that the electromagnetic oven face-piece is installed black brilliant plate is easy to thermal deformation because of plastic cement heat distortion temperature low (being generally 90 degree), cause face-piece to be scalded, this has had a strong impact on the good looking appearance of electromagnetic oven, also can make the slit between black brilliant plate and the face-piece become big, cause outside water may flow into electromagnetic oven inside, influence electromagnetic oven and normally use, even can reduce the service life of electromagnetic oven.And existing electromagnetic oven does not mostly have setting to prevent the protective device that face-piece is scalded.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point of the prior art, provide a kind of electromagnetic oven face-piece that can prevent to be scalded, avoid face-piece to be scalded problems such as the slit change causes greatly leaking between caused bad order and black brilliant plate and the face-piece, can improve the electromagnetic oven in the service life of electromagnetic oven.
Purpose of the present invention can reach by following measure:
This electromagnetic oven that prevents that face-piece from being scalded, comprise the electromagnetic oven face-piece, be installed in black brilliant plate on the described face-piece, electromagnetic oven PCB power amplifier board, the buzzer that is electrically connected with described PCB power amplifier board, its special character is, at least be equiped with a temperature sensor that is electrically connected with described PCB power amplifier board on the described face-piece on this face-piece and black brilliant plate joint face, described temperature sensor contacts with black brilliant backboard face.
Wherein, can be preferred, described temperature sensor is installed in described face-piece and deceives on the brilliant plate joint face by the semiclosed circular arc silica gel support of a lower ending opening, be provided with groove in this face-piece and black brilliant plate joint face on the described face-piece, described groove is provided with stepped hole in the lower end, the screens of this silica gel support by being arranged on its lower end be fastened in cooperating of described stepped hole in the described groove; The silica gel support top is provided with groove, and described temperature sensor is installed in the described groove.
Wherein, can be preferred, described groove two ends are respectively equipped with a through hole, and the lead-in wire at described temperature sensor two ends passes described two through hole respectively and is electrically connected with described PCB power amplifier board.
Wherein, can be preferred, described temperature sensor is a thermistor.
Wherein, can be preferred, described temperature sensor is four, is evenly distributed on the joint face of face-piece and black brilliant plate.
The present invention has following advantage compared to existing technology: by on face-piece and black brilliant plate joint face at least one temperature sensor being set on the electromagnetic oven face-piece, make the temperature in the bottom of a pan pass to temperature sensor by black brilliant plate, when pan departs from black brilliant plate silk-screen center or user when using big pan greater than the brilliant plate limited range of electromagnetism furnace black, the PCB power amplifier board that temperature sensor transmits the high temperature signal of sensing, in time remind the user unusual by buzzer warning, thereby can avoid face-piece by bad order that scald causes, the slit change causes outside current to advance problems such as electromagnetic oven internal influence electromagnetic oven operate as normal, the service life of having improved electromagnetic oven greatly between black brilliant plate and the face-piece.
Description of drawings
Fig. 1 is a STRUCTURE DECOMPOSITION schematic diagram of the present invention.
Fig. 2 is silica gel support of the present invention and temperature sensor connection diagram.
Fig. 3 is a face-piece schematic rear view of the present invention.
The specific embodiment
The present invention is further detailed in conjunction with the accompanying drawings below:
As shown in Figure 1, this electromagnetic oven that prevents that face-piece from being scalded provided by the invention, comprise electromagnetic oven face-piece 101, be installed in black brilliant plate 102 on the face-piece 101, electromagnetic oven PCB power amplifier board, the buzzer that is electrically connected with the PCB power amplifier board, face-piece 101 is more bonding by silicone with black brilliant plate 102.At least be equiped with a temperature sensor 104 that is electrically connected with the PCB power amplifier board on the face-piece 101 on this face-piece 101 and black brilliant plate 102 joint faces, temperature sensor 104 contacts with black brilliant plate 102 back sides.
As shown in Figure 1 and Figure 2, in the present embodiment, face-piece 101 adopts the ABS plastic cement to make, and temperature sensor 104 is one, and temperature sensor 104 is a thermistor.Temperature sensor 104 is installed in face-piece 101 and deceives on brilliant plate 102 joint faces by the semiclosed circular arc silica gel support 103 of a lower ending opening, be provided with groove 1011 in this face-piece 101 and black brilliant plate 102 joint faces on the face-piece 101, groove is provided with stepped hole 1012 in 1011 lower ends, as shown in Figure 3, the screens 1032 of this silica gel support 103 by being arranged on its lower end be fastened in cooperating of stepped hole 1012 in the groove 1011; Silica gel support 103 tops are provided with groove 1031, and temperature sensor 104 is installed in the groove 1031.Groove 1031 two ends are respectively equipped with a through hole, and the lead-in wire 1041 at temperature sensor 104 two ends passes above-mentioned two through hole respectively and is electrically connected with the PCB power amplifier board.The present invention adopts silica gel support 103 mounting temperature sensors 104, utilizes the elasticity of silica gel support 103 that temperature sensor (thermistor) 104 is pressed on the back side of deceiving brilliant plate 102, and temperature sensor 104 is closely contacted with black brilliant plate 102.
In other embodiments, temperature sensor 104 also can be two or more, when a plurality of, temperature sensor 104 can be evenly distributed on the joint face of face-piece 101 and black brilliant plate 102, as is installed in face-piece 101 and installs on the periphery or each angle of joint face of black brilliant plate 102.
The present invention prevents that the principle that electromagnetic oven face-piece 101 is scalded from being:
Because temperature sensor 104 is installed on the joint face of black brilliant plate 102 below face-pieces 101 and black brilliant plate 102, and temperature sensor 104 closely contacts with black brilliant plate 102 back sides, when electromagnetic oven is worked, the temperature in the bottom of a pan is passed to temperature sensor 104 by black brilliant plate 102, when pan departs from black brilliant plate 102 silk-screen centers or user when using big pan greater than brilliant plate 102 limited ranges of electromagnetism furnace black, temperature sensor 104 transmits electromagnetic oven PCB power amplifier board with the high temperature signal of sensing, by circuit control buzzer warning, can in time remind the user unusual, thereby can avoid face-piece 101 thermal deformations (by scalding) to cause the electromagnetic oven bad order because temperature is too high, problems such as the slit change between black brilliant plate 102 and the face-piece 101 causes greatly leaking, the service life of improving electromagnetic oven.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.