CN212158844U

CN212158844U - Four-wire food barbecue thermometer

Info

Publication number: CN212158844U
Application number: CN202021064978.1U
Authority: CN
Inventors: 杨全华; 黄美燕
Original assignee: Shenzhen Ecare Electronics Co ltd
Current assignee: Shenzhen Ecare Electronics Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-12-15
Anticipated expiration: 2030-06-10

Abstract

The utility model discloses a four-wire food barbecue thermometer, which comprises a stainless steel shell, wherein a PCB circuit board is arranged in the stainless steel shell, and the four-wire food barbecue thermometer also comprises a main control chip for data processing, a plurality of temperature measuring probes for measuring the temperature of food, an LCD display screen for displaying temperature data, a backlight plate for providing brightness for the LCD display screen, a power module for supplying power, an operation button for performing conventional menu operation and a touch button for controlling the switch of the backlight plate; the touch key is characterized in that a mounting hole for mounting the touch key is formed in the side face of the stainless steel shell, a plastic surface shell is embedded into the mounting hole, a touch copper sheet is mounted on the plastic surface shell close to the center of the inner side face of the stainless steel shell, and the end part of the touch copper sheet is welded on the PCB and connected with the main control chip. The utility model discloses technical scheme improves the convenience that the user used.

Description

Four-wire food barbecue thermometer

Technical Field

The utility model relates to a barbecue thermometer field, in particular to four-wire food barbecue thermometer.

Background

Along with the improvement of living standard of people, barbecue becomes a dietary mode in the life of people. When barbecuing, the degree of maturity of baked food needs to be controlled, at present, the food is burnt and grows inside and outside mainly by experience feeling, the food is wasted, and the diet experience of people is influenced, so that the barbecuing thermometer is applied to the food. The barbecue thermometer is generally placed near a high-temperature furnace, the surface of a product is required to be a stainless steel surface, a touch key is required to activate backlight under the condition of dark light, the function of key touch is difficult to realize on the stainless steel surface of the conventional barbecue thermometer, and meanwhile, each temperature measuring probe needs to be set one by one and the operation is complicated.

Accordingly, the prior art is deficient and needs improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-wire food barbecue thermometer aims at realizing the button touch function on barbecue thermometer stainless steel surface and the quick function setting of temperature probe.

In order to achieve the above object, the utility model provides a four-wire food barbecue thermometer, including the stainless steel shell, install the PCB circuit board in the stainless steel shell, still include the main control chip that is used for carrying on data processing, a plurality of temperature probe that are used for measuring the food temperature, the LCD display screen that is used for showing temperature data, be used for providing the board in a poor light of luminance for the LCD display screen, the power module that is used for supplying power, the operation button that is used for carrying on the menu operation, the touch button that is used for controlling the board in a poor light switch; the temperature data output end of the temperature measuring probe is connected with the temperature data input end of the main control chip, the temperature data output end of the main control chip is connected with the temperature data input end of the LCD display screen, the control signal input end of the backlight plate is connected with the control signal output end of the main control chip, the voltage output end of the power module is connected with the voltage input end of the main control chip, the control signal output end of the operation key is connected with the control signal input end of the main control chip, and the control signal output end of the touch key is connected with the control signal input end of the main control chip; the touch key is characterized in that a mounting hole for mounting the touch key is formed in the side face of the stainless steel shell, a plastic surface shell is embedded into the mounting hole, a touch copper sheet is mounted on the plastic surface shell close to the center of the inner side face of the stainless steel shell, and the end part of the touch copper sheet is welded on the PCB and connected with the main control chip.

Preferably, the distance from the edge of the touch copper sheet to the edge of the mounting hole is greater than 2mm, and the vertical distance from the surface of the touch copper sheet to the outer side surface of the stainless steel shell is greater than 1.5 mm.

Preferably, the temperature probes are arranged into four temperature probes with different colors.

Preferably, the operation keys comprise a first PROBE/ALART key and a second PROBE/ALART key.

Preferably, the power supply module is set as a section of AAA battery, and the power supply module is connected with the main control chip through a voltage boosting circuit.

Preferably, the alarm device further comprises a buzzer for giving a high-temperature alarm, and the buzzer is connected with the main control chip.

Compared with the prior art, the beneficial effects of the utility model are that: the quick temperature setting and menu selection of four temperature probes can be realized through the operation key, and the structure that sets up the touch key on the stainless steel surface has been realized at the trompil of stainless steel shell side through the structure of touch copper sheet, and convenient quick activation is shaded, facilitates the use.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic block diagram of a barbecue thermometer of the present invention;

FIG. 2 is a schematic circuit diagram of the main control chip and the LCD display screen of the present invention;

FIG. 3 is a schematic circuit diagram of the temperature probe of the present invention;

FIG. 4 is a schematic circuit diagram of the backlight panel of the present invention;

FIG. 5 is a schematic circuit diagram of the operation button of the present invention;

fig. 6 is a schematic circuit diagram of the touch key of the present invention;

fig. 7 is a schematic view of an installation structure of the touch key of the present invention;

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The four-wire food barbecue thermometer provided by the embodiment comprises a stainless steel shell 1, wherein a PCB circuit board 2 is installed in the stainless steel shell 1, and referring to fig. 1, the four-wire food barbecue thermometer further comprises a main control chip 3 for data processing, a plurality of temperature measuring probes 4 for measuring the temperature of food, an LCD (liquid crystal display) screen 5 for displaying temperature data, a backlight plate 6 for providing brightness for the LCD screen 5, a power module 7 for supplying power, an operation key 8 for performing menu operation, and a touch key 9 for controlling the backlight plate 6 to be switched on and off; the temperature data output end of the temperature measuring probe 4 is connected with the temperature data input end of the main control chip 3, the temperature data output end of the main control chip 3 is connected with the temperature data input end of the LCD display screen 5, the control signal input end of the backlight plate 6 is connected with the control signal output end of the main control chip 3, the voltage output end of the power module 7 is connected with the voltage input end of the main control chip 3, the control signal output end of the operation key 8 is connected with the control signal input end of the main control chip 3, and the control signal output end of the touch key 9 is connected with the control signal input end of the main control chip 3.

Referring to fig. 2, the main control chip 3 is a control chip commonly used in the art, in this embodiment, the main control chip 3 is connected to the temperature probes 4 with different colors, the circuit schematic diagram of the temperature probes 4 refers to fig. 3, and according to the characteristic that the resistance value of the temperature probes 4 changes correspondingly with the change of the temperature, the main control chip 3 can detect different resistance value data of the temperature probes 4, so as to display different temperature data on the LCD display screen 5. Meanwhile, the color of the temperature measuring probe 4 is different, so that the user can conveniently identify the temperature measuring probe.

Referring to fig. 6 and 7, a mounting hole 11 for mounting the touch key 9 is formed in the side surface of the stainless steel shell 1, a plastic surface shell 12 is embedded in the mounting hole 11, a touch copper sheet 13 is mounted on the plastic surface shell 12 close to the center of the inner side surface of the stainless steel shell 1, and the end of the touch copper sheet 13 is welded on the PCB circuit board 2 and connected with the main control chip 3. Further, the distance from the edge of the touch copper sheet 13 to the edge of the mounting hole 11 is greater than 2mm, and the vertical distance from the surface of the touch copper sheet 13 to the outer side surface of the stainless steel shell 1 is greater than 1.5 mm. It should be noted that the touch key 9 is driven by a single touch IC, and a safety distance is reserved between the touch copper sheet 13 and the stainless steel shell 1, so that when a user touches the plastic shell 12, the user can normally touch the touch copper sheet 13, thereby normally activating the backlight.

Further, referring to fig. 5, the operation keys 8 include a first PROBE/alarm key and a second PROBE/alarm key. By inputting a control program into the main control chip 3, during operation, the PROBE/ALART key is clicked to select the temperature measuring PROBE 4 to be set, then the MEAT/HI/LO key circulation selection menu or BBQ is clicked, then the PROBE/ALART key is clicked to confirm the selection, if the selection menus of other three temperature measuring PROBEs 4 are required to be the same, the quick operation can be realized, and the PROBE/ALART and MEAT/HI/LO keys are simultaneously pressed, so that the quick setting of the four temperature measuring PROBEs 4 can be completed. The target temperature and menu selection are not required to be set one by one for each probe, and the use of consumers is facilitated.

Further, the power supply module is configured as a AAA battery, and the power supply module 7 is connected to the main control chip 3 through a voltage boost circuit, it should be noted that the voltage boost circuit is a voltage boost circuit commonly used in the art, and no further description is given here, in this embodiment, the voltage boost circuit is configured to convert a voltage of 1.5V of the battery into a voltage of 3.6V.

Further, the thermometer also comprises a buzzer 14 used for high-temperature alarm, the buzzer 14 is connected with the main control chip 3, and when the test temperature of the thermometer is lower than the preset temperature, the main control chip 3 controls the buzzer 14 to alarm to prompt a user that the temperature is too high.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A four-wire food barbecue thermometer comprises a stainless steel shell, wherein a PCB circuit board is installed in the stainless steel shell, and the four-wire food barbecue thermometer is characterized by further comprising a main control chip for data processing, a plurality of temperature measuring probes for measuring the temperature of food, an LCD display screen for displaying temperature data, a backlight plate for providing brightness for the LCD display screen, a power supply module for supplying power, an operation key for performing menu operation and a touch key for controlling a backlight plate switch;

the temperature data output end of the temperature measuring probe is connected with the temperature data input end of the main control chip, the temperature data output end of the main control chip is connected with the temperature data input end of the LCD display screen, the control signal input end of the backlight plate is connected with the control signal output end of the main control chip, the voltage output end of the power module is connected with the voltage input end of the main control chip, the control signal output end of the operation key is connected with the control signal input end of the main control chip, and the control signal output end of the touch key is connected with the control signal input end of the main control chip;

the touch key is characterized in that a mounting hole for mounting the touch key is formed in the side face of the stainless steel shell, a plastic surface shell is embedded into the mounting hole, a touch copper sheet is mounted on the plastic surface shell close to the center of the inner side face of the stainless steel shell, and the end part of the touch copper sheet is welded on the PCB and connected with the main control chip.

2. The four-wire food grilling thermometer of claim 1 wherein the edge of said touching copper plate is spaced from the edge of said mounting hole by a distance greater than 2mm and the perpendicular distance of the surface of said touching copper plate from the outside surface of the stainless steel housing is greater than 1.5 mm.

3. The four-wire food grilling thermometer of claim 1 wherein said temperature probes are provided as four different color temperature probes.

4. The four-wire food grilling thermometer of claim 1 wherein said operating buttons comprise a first PROBE/ALART button and a second PROBE/ALART button.

5. The four-wire food barbecue thermometer of any one of claims 1-4, wherein said power module is configured as a AAA battery and is connected to said main control chip through a voltage boost circuit.

6. The four-line food barbecue thermometer of any one of claims 1-4, further comprising a buzzer for alarming at high temperature, wherein said buzzer is connected with said main control chip.