CN212466238U - Oral cavity thermostat - Google Patents

Abstract

The utility model provides an oral cavity thermostat, which relates to the dental field, and comprises a microcontroller MCU and a heating cover, wherein a PCB is arranged inside the heating cover, an NTC temperature sensor and a PTC heater are integrated on the PCB, and the microcontroller MCU is electrically connected with the NTC temperature sensor and the PTC heater; still include the controller casing, microcontroller MCU sets up the inside at the controller casing, the heating lid passes through USB articulate with the controller casing, be provided with display screen, button and speaker on the controller casing, the shape of heating lid is the arc. The utility model is used for solve among the prior art tooth expose easily arouse the tooth discomfort in the air, sensitive, painful even to and use the heat that UV or light wave sent to remove the reflectance who changes the tooth, can initiate skin cancer's technical problem.

Description

Oral cavity thermostat

Technical Field

The utility model relates to a dentistry field especially relates to an oral cavity thermostated container.

Background

In the dental field, particularly in tooth whitening treatment, doctors and users often use mouth openers to open the mouth, observe the teeth, or apply gel, resin or medicine to the teeth or gums. The temperature of the oral cavity is reduced during the process of opening the oral cavity, which causes discomfort, sensitivity and even pain to the teeth.

Meanwhile, the heat emitted by UV or light waves in a bulky large light instrument is used in the market to change the reflection coefficient of teeth and achieve the effect of whitening the teeth visually, and the reflection coefficient of the teeth can be changed to analyze the teeth, such as: 1. understanding tooth structure; 2. whether the teeth are sensitive; 3. whether caries is likely to occur; 4. whether white spots exist, etc. However, when soft tissue is exposed to intense light waves or UV for a long time, the risk of skin cancer is induced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to an oral cavity thermostat, which is used to solve the technical problems of the prior art that the temperature of the oral cavity is lowered after the teeth are exposed to the air, causing discomfort, sensitivity, or even pain to the teeth, and using the heat generated by UV or light waves to change the reflection coefficient of the teeth, which can cause skin cancer.

In order to realize above-mentioned purpose and other relevant purposes, the utility model provides an oral cavity thermostat, oral cavity thermostat includes microcontroller MCU and heating lid, the inside PCB board that is provided with of heating lid, integrated NTC temperature sensor and PTC heater on the PCB board, MCU is connected with NTC temperature sensor and PTC heater electricity.

In an embodiment of the utility model, still include the controller casing, MCU sets up the inside at the controller casing, the heating lid passes through USB articulate with the controller casing.

In an embodiment of the present invention, the controller housing is provided with a display screen, a button, a power indicator and a speaker.

In an embodiment of the present invention, the heating cover is arc-shaped, the thickness of the inner wall of the heating cover is smaller than that of the outer wall, the heating cover is provided with the slot, and the outer wall is provided with the heating indicator light.

In an embodiment of the present invention, the opening of the slot faces downward, and the shape of the opening is wedge-shaped.

In an embodiment of the present invention, the mouth cavity thermostat is used in cooperation with the mouth gag, and the mouth gag is provided with a hook used in cooperation with the slot.

In an embodiment of the present invention, the MCU is integrated on the PCB inside the heating cover, the outer surface of the heating cover is provided with an air inlet, the lower end of the heating cover is provided with an air outlet, the inside of the heating cover is further provided with an axial fan, and the PTC heater and the NTC temperature sensor are located between the axial fan and the air outlet.

In an embodiment of the present invention, the outer wall of the heating cover is provided with a display screen and a button.

In an embodiment of the present invention, a filter screen is disposed outside the axial flow fan.

As mentioned above, the utility model provides an oral cavity thermostat has following beneficial effect:

1. the utility model provides a safe, comfortable oral cavity thermostats heats the oral cavity, makes oral cavity temperature reach comfortable state to under comfortable environment, through the absorption of invariable hot temperature help medicine or whitening agent, not only avoided because the risk of the cancer that the intense light shines the oral cavity and causes can also reach with invariable comfortable temperature and change tooth reflection coefficient, realize the physical phenomenon that the tooth whitened.

2. The utility model discloses tend to miniaturized design, conveniently hand-carry, use at any time, the temperature of thermostated instrument can be controlled, according to everyone's the condition and demand, changes invariable temperature.

Drawings

Fig. 1 is a schematic view showing an external structure of an oral thermometer disclosed in the first embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of oral cavity temperature measurement disclosed in the first embodiment of the present invention.

Fig. 3 is a cross-sectional view of a heating cover disclosed in the first embodiment of the present invention.

Fig. 4 shows a structure diagram of a PTC heater according to an embodiment of the present invention.

Fig. 5 is a schematic circuit diagram disclosed in the first embodiment of the present invention.

Fig. 6 is a schematic view showing an internal structure of a heating cover disclosed in the second embodiment of the present invention.

Fig. 7 is an external view of the heating cover disclosed in the second embodiment of the present invention.

Fig. 8 shows a structure diagram of a PTC heater according to a second embodiment of the present invention.

Fig. 9 is a schematic circuit diagram disclosed in the second embodiment of the present invention.

Description of the element reference numerals

1-microcontroller MCU; 2-heating the cover; 3-a PCB board; 4-NTC temperature sensor; 5-PTC heaters; 51-spade slice aluminum tube; 6-a controller housing; 7-a display screen; 8-key pressing; 9-slot; 10-an air inlet; 11-an air outlet; 12-an axial fan; 13-a USB connector; 14-a heating indicator light; 15-power indicator light.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 9. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Detailed description of the preferred embodiment

Referring to fig. 1 and 2, the utility model provides an oral cavity thermostat, which comprises a microcontroller MCU1 and a heating cover 2, wherein a PCB 3 is arranged inside the heating cover 2, an NTC temperature sensor 4 and a PTC heater 5 are integrated on the PCB 3, and the MCU1 is electrically connected with the NTC temperature sensor 4 and the PTC heater 5;

referring to fig. 4, in the present embodiment, the PTC is a semiconductor heating ceramic, the specific structure of the PTC heater 5 is a PTC thick film heating element (the PTC thick film heating element is a thick film type heating element), the PTC thick film heating element is provided with a group a and a group B, which are respectively disposed at two ends of the NTC temperature sensor, so that the inside of the heating cover is uniformly heated, the PTC thick film heating element is printed on the substrate, and then the substrate and the PTC thick film heating element are adhered to the PCB.

Based on the above embodiment, the controller shell 6 is further included, the MCU1 is disposed inside the controller shell 6, and the heating cover 2 is connected to the controller shell 6 through the USB connector 13.

Based on the above embodiment, the controller housing 6 is provided with the display screen 7, the keys 8, the speaker and the power indicator 15, wherein the speaker is used for broadcasting the working state of the oral cavity thermostat;

the display content of the display screen 7 comprises time, temperature and power;

specifically, the key 8 includes: time, Temperature, a, T, t, Start/Pause,

respectively used for selecting heating time, setting heating temperature, adjusting up, adjusting down, starting/stopping.

In this embodiment, the NTC temperature sensor 4 is a negative temperature coefficient thermistor, and the resistance value is lower as the temperature is higher, and the NTC temperature sensor 4 is configured to monitor the heating temperature in the oral cavity and send a temperature value signal to the MCU1, thereby playing a role of feedback.

Referring to fig. 3, based on the above embodiment, the heating cover 2 is arc-shaped, the radian is substantially parallel to the radian of the teeth, the heating cover 2 is always kept at a constant distance from the front teeth and the rear teeth, the formed hot air flow uniformly heats the teeth, the thickness of the inner wall of the heating cover 2 is smaller than that of the outer wall, so the thermal conductivity of the inner wall is greater than that of the outer wall, and when the PTC heater 5 works, the surface temperature range value of the inner wall is: 30-90 ℃, and the temperature range of the hot airflow reaching the oral cavity is 30-60 ℃; and the heating cover 2 is provided with a slot 9, and the outer wall is provided with a heating indicator lamp 14.

Based on the above embodiment, the opening of the slot 9 faces downwards, and the shape of the opening is wedge-shaped.

Based on the above embodiment, the mouth thermostat is used in cooperation with a mouth gag (the mouth gag is not shown), and the mouth gag is provided with a hook used in cooperation with the slot 9;

referring to fig. 5, the schematic circuit diagram of the controller and the heating cover 2 is as follows: the LED lamp also comprises triodes Q1, Q2, Q3, Q4 and Q5, a light-emitting diode D1 (heating indicator lamp), a D2 (power indicator lamp) and current-limiting resistors R1 and R2.

The two ends of the MCU1 are loaded with power supplies, the MCU1 is connected with the b poles of the triodes Q1, Q2, Q3 and Q4 and connected with the two ends of the NTC temperature sensor 4,

the MCU1 is electrically connected with the keys 8 and the display screen 7,

the speaker is connected to the c-pole of transistor Q1,

one end of the current limiting resistor R1 is connected with the c pole of the triode Q4, the other end is connected with the negative pole of the heating indicator lamp D1,

the current-limiting resistor R2 is connected with the anode of the power indicator lamp D2,

the e pole of the triode Q3 is connected with the B pole of the Q5, the c pole of the Q3 is connected with the c pole of the Q5 and the A group of PTC thick film heating elements, and the A group and the B group are connected in series.

The circuit control principle is as follows: 5 user input ends are arranged through the button switch, a temperature input end is arranged through the NTC temperature sensor, the MCU1 receives data information of the input ends and then sends the data information to the display screen, the MCU1 controls the transistor to work according to the data information, and the triode Q1 drives the loudspeaker to make sound to remind a user in different treatment stages; triode Q2 drive power indicator D2 shows green when switch on and mains voltage are good, and mains voltage is lower, shows red, and the heater provides the in-process of heat energy, shows the green of scintillation, and triode Q4 drive heating indicator D1, and the heating lid shows orange when heating, and the NTC sensor is located the centre of heating the lid, in the best position with the temperature of measuring the oral cavity and with signal feedback to MCU1, triode Q3 and Q5 constitute compound transistor pair for drive A group and B group PTC thick film heat-generating body.

The using method comprises the following steps: after the heating cover is connected with the power supply of the controller, the self-checking is carried out once, then the power supply indicator lamp L2 is lightened to be stable green, and the default time length and the temperature value are displayed on the display panel. The heating temperature and duration are adjusted using keys or the default values are modified using up or down buttons. Each time the button is pressed, the speaker emits a short audible feedback tone.

In use, the user wears the mouth gag with 2 upwards facing slots, and then the two slots 9 of the heating lid will hang on the mouth gag. Then the start button is pressed, a start ring tone is played and the MCU1 starts reading the temperature from the NTC sensor while power is supplied to the PTC heater 5. Since the heater is of the PTC type, the initial current is high and the temperature rises quickly, approaching the target value within 2 minutes, at which time the PTC heater limits the current flowing through the PTC heater, and at the same time, the MCU1 fine-tunes the power transmitted to the PTC heater to accurately control the temperature after receiving the temperature information. The display screen displays the current temperature, the power consumed by the heater, and the remaining time. The user can pause or resume using the "start/pause" button. A warning tone will be played 1 minute before the end, and then at the end, a jingle will be played to alert the user or doctor, and then the heater is turned off.

For example, the temperature value is set to 50 ℃, the MCU1 increases the heating power of the PTC thick film heating element, the PTC thick film heating element starts to heat, the inner wall of the heating cover gradually becomes hot, so that the temperature of the air flow of the inner wall rises, and the air flow gradually enters the cavity to heat the teeth; meanwhile, the NTC temperature sensor continuously senses the temperature in the oral cavity and feeds a temperature value signal back to the MCU1, when the temperature value rises to be close to 50 ℃, the MCU1 gradually reduces the power transmitted to the PTC thick film heating element, when the temperature value is higher than 50 ℃, the MCU1 stops transmitting the power to the PTC thick film heating element, and when the target temperature value drops to be lower than 50 ℃, the MCU1 gradually increases the power transmitted to the heater, so that the target temperature is maintained, the temperature value in the oral cavity is in a constant temperature state, and the oral cavity is prevented from being scalded.

Detailed description of the invention

Referring to fig. 6 and 7, the present invention provides an oral cavity thermostat, which includes an MCU1 and a heating cover 2, wherein a PCB 3 is disposed inside the heating cover 2, an NTC temperature sensor 4 and a PTC heater 5 are integrated on the PCB 3, and the MCU1 is electrically connected to the NTC temperature sensor 4 and the PTC heater 5;

referring to fig. 8, in the present embodiment, PCT ceramics are installed in a shovel aluminum tube 51 of the PTC heater 5 as a heating element, and the PTC ceramics are provided with a group a and a group B, which are respectively disposed at two ends of the shovel aluminum tube 51, so that the inside of the heating cover is uniformly heated.

In this embodiment, the NTC temperature sensor 4 is a thermistor, and the resistance value is lower as the temperature is higher, and the NTC temperature sensor 4 is configured to monitor the heating temperature in the oral cavity and send a temperature value signal to the MCU1, so as to perform a feedback function.

The MCU1 is integrated on the PCB 3 inside the heating cover 2, the outer surface of the heating cover 2 is provided with an air inlet 10, the lower end part of the heating cover 2 is provided with an air outlet 11, the inside of the heating cover 2 is also provided with an axial flow fan 12, the PTC heater 5 and the NTC temperature sensor 4 are positioned between the axial flow fan 12 and the air outlet 11, preferably, the NTC temperature sensor 4 is arranged at the air outlet 11, so that the temperature in the oral cavity can be sensed conveniently;

preferably, the position of the air inlet 10 corresponds to the position of the axial flow fan 12;

based on the above embodiment, the outer wall of the heating cover 2 is provided with the display screen 7 and the key 8, and the top of the heating cover 2 is connected with the bracket;

the display content of the display screen 7 comprises time, temperature and power;

specifically, the key 8 includes: time, Temperature, a, T, t, Start/Pause,

respectively used for selecting heating time, setting temperature, adjusting up, adjusting down, starting/stopping.

In this embodiment, the shape of the heating cover 2 is not limited, and when the heating cover is hung on a bracket, the power supply is turned on, the air outlet 11 is aligned with the mouth (no mouth opener is required to be provided in this structure), and the air blown out by the axial fan 12 is heated by the PTC heater 5 and then enters the oral cavity from the air outlet 11, so that the air entering the oral cavity is hot air, and the oral cavity is heated.

Based on the above embodiment, a filter screen is arranged outside the axial flow fan 12, and the filter screen can be detached for cleaning;

referring to fig. 9, the circuit structure of the heating cover 2 is: also comprises triodes Q6, Q7 and Q8,

the MCU1 is connected with the b poles of the triodes Q6, Q7 and Q8 and connected with the two ends of the NTC temperature sensor 4;

the MCU1 is electrically connected with a power supply, a key and a display screen,

the c pole of the triode Q6 is connected with the group A PTC thick film heating element, and the e pole is grounded;

the c pole of the triode Q7 is connected with the group B PTC thick film heating elements, and the e pole is grounded;

the c pole of the triode Q8 is connected with the A group of axial flow fans 12, and the e pole is grounded;

the circuit control principle is as follows: through the key selection heating time and heating temperature, triode Q6 drives group A PTC ceramic heating elements to heat, triode Q7 drives group B PTC ceramic heating elements to heat, and triode Q8 drives the axial fan to work.

The using method comprises the following steps: when the temperature measuring device is used, the oral cavity temperature measuring device is hung on the support and keeps a certain distance with teeth, the mouth is opened, the air outlet 11 is aligned with the oral cavity, the temperature value and the time are adjusted by using the key 8, for example, the temperature range value is set to be 50 ℃, the heating power of the PTC ceramic heating element is increased by the MCU1, the PTC ceramic heating element starts to heat, the axial flow fan 12 starts to work and blows hot air into the oral cavity, the temperature in the oral cavity is fed back to the MCU by the NTC temperature sensor 4, and the heating power of the PTC heater is adjusted by the MCU according.

To sum up, the utility model discloses be provided with two kinds of modes and to the oral cavity heating, windy and windless heating, simple structure is small and exquisite, can replace traditional large-scale instrument of light. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (9)

1. The utility model provides an oral cavity thermostat, its characterized in that, oral cavity thermostat includes microcontroller MCU (1) and heating lid (2), heating lid (2) inside is provided with PCB board (3), and it has NTC temperature sensor (4) and PTC heater (5) to integrate on PCB board (3), MCU (1) is connected with NTC temperature sensor (4), PTC heater (5) electricity.

2. The oral thermostat of claim 1, wherein: still include controller casing (6), MCU (1) sets up the inside at controller casing (6), heating lid (2) are connected through USB joint (13) with controller casing (6).

3. The oral thermostat of claim 2, wherein: and the controller shell (6) is provided with a display screen (7), a key (8), a power indicator lamp (15) and a loudspeaker.

4. The oral thermostat of claim 2, wherein: the shape of heating lid is the arc, and the thickness of the inner wall of heating lid (2) is less than the thickness of outer wall, and heating lid (2) are provided with slot (9), and the outer wall is provided with heating pilot lamp (14).

5. The oral thermostat of claim 4, wherein: the opening of the slot (9) faces downwards, and the shape of the opening is wedge-shaped.

6. The oral thermostat of claim 5, wherein: the mouth cavity thermostat is matched with the mouth gag for use, and the mouth gag is provided with a hook matched with the slot (9) for use.

7. The oral thermostat of claim 1, wherein: the MCU (1) is integrated on the PCB (3) inside the heating cover, the outer surface of the heating cover (2) is provided with an air inlet (10), the lower end part of the heating cover is provided with an air outlet (11), the inside of the heating cover (2) is also provided with an axial flow fan (12), and the PTC heater (5) and the NTC temperature sensor (4) are positioned between the axial flow fan (12) and the air outlet (11).

8. The oral thermostat of claim 7, wherein: and a display screen (7) and a key (8) are arranged on the outer wall of the heating cover (2).

9. The oral thermostat of claim 7, wherein: a filter screen is arranged outside the axial flow fan (12).

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