CN213632449U - Wireless temperature measurement tool and device - Google Patents

Abstract

The utility model discloses a wireless temperature measurement instrument and device, including casing, host system and two kinds at least temperature measurement parts, host system sets up in the casing, host system respectively with each temperature measurement part electric connection is and can acquire each temperature measurement part's temperature measurement data. The utility model discloses well temperature measurement part of two kinds of at least differences can measure to the temperature under the different temperature ranges, reduces the error of temperature measurement result, improves the authenticity of temperature measurement data.

Description

Wireless temperature measurement tool and device

Technical Field

The utility model relates to a temperature measurement field, in particular to wireless temperature measurement instrument and device.

Background

At present, temperature measurement modules are arranged on most common electric products, and common temperature measurement instruments on the market can measure the temperature of a measured object, but a temperature measurement sensor is fixedly used in the electric appliances and the temperature measurement instruments, and the temperature measurement accuracy of the temperature measurement sensor can be guaranteed only within a certain range, so that when only one temperature measurement sensor is used for measuring the temperature, the temperature measurement range is possibly limited, errors exist in the measurement result when the temperature outside the temperature measurement range is measured, and the normal temperature measurement accuracy is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the problem that exists among the prior art. Therefore, the utility model provides a wireless temperature measurement instrument, wherein the temperature measurement part of two kinds of at least differences can be measured to the temperature under the different temperature ranges, reduces the error of temperature measurement result.

The utility model also provides a wireless temperature measuring device, wireless power supply seat more enough charges for wireless temperature measurement instrument is wireless, has brought the facility for user's use.

According to the utility model discloses a wireless temperature measurement instrument, including casing, host system and two kinds at least temperature measurement parts, host system sets up in the casing, host system respectively with each temperature measurement part electric connection is and can acquire each temperature measurement part's temperature measurement data.

According to the utility model discloses a wireless temperature measurement instrument has following beneficial effect at least:

the utility model provides an at least two kinds of temperature measurement parts can carry out the accurate measurement to the temperature under the different scope, and wherein every kind of temperature measurement part all has a temperature measurement scope that can guarantee the temperature measurement precision separately, to the temperature range of difference, selects the temperature measurement part that can guarantee the temperature measurement precision in this temperature range to measure, can reduce the error in the temperature measurement result, improves the authenticity of temperature measurement data.

According to some embodiments of the present invention, two said temperature measuring means are an NTC temperature sensor and a thermocouple temperature sensor, respectively.

According to the utility model discloses a some embodiments still include wireless transmission module, wireless transmission module with host system electric connection.

According to some embodiments of the present invention, the temperature measuring device further comprises a switching module, wherein the switching module is electrically connected to the main control module to switch and acquire data of different temperature measuring components; or the main control module is electrically connected with the temperature measurement components through the switching module respectively so as to switch and acquire different data of the temperature measurement components.

According to some embodiments of the utility model, the casing is provided with the detection part, the temperature measurement part with the detection part contact, the detection part can contact with outside temperature measurement object and can be with the heat conduction of temperature measurement object extremely the temperature measurement part.

According to some embodiments of the utility model, still including setting up chargeable and dischargeable energy storage module and the module of charging on the casing, energy storage module respectively with host system and the temperature measurement part is connected in order to supply power, the module of charging with energy storage module connects and charges for energy storage module.

According to the utility model discloses a some embodiments, the module of charging is including setting up interface that charges on the casing, charge the interface with energy storage module connects, the interface that charges can pass through wire and external power source electric connection.

According to some embodiments of the utility model, the module of charging still includes wireless charging unit, wireless charging unit with energy storage module electric connection.

According to the utility model discloses some embodiments of a wireless temperature measuring device of second aspect, including the wireless temperature measuring instrument and the wireless power supply seat that disclose in the above-mentioned embodiment, wireless power supply seat with wireless temperature measuring instrument coupling connection is with right wireless temperature measuring instrument carries out wireless charging.

According to the utility model discloses a wireless temperature measuring device has following beneficial effect at least:

the utility model provides a wireless power supply seat can be for wireless temperature measurement instrument is wireless to charge for the user need not the charging data line of being equipped with oneself, and the use of giving the user has brought the facility.

According to some embodiments of the utility model, wireless power supply seat is including keeping apart power and wireless transmitting unit, keep apart the power with wireless transmitting unit electric connection.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural view of a wireless temperature measurement tool of the present invention;

FIG. 2 is a frame diagram of a wireless temperature measurement tool according to the present invention;

FIG. 3 is a schematic circuit diagram of a main control module in a wireless temperature measurement tool according to the present invention;

FIG. 4 is a schematic circuit diagram of an NTC temperature sensor in a wireless temperature measurement tool according to the present invention;

FIG. 5 is a schematic circuit diagram of a thermocouple sensor in a wireless temperature measuring tool according to the present invention;

FIG. 6 is a schematic circuit diagram of a charging socket of a wireless temperature measurement tool of the present invention;

FIG. 7 is a schematic circuit diagram of a wireless charging unit of a wireless temperature measurement tool according to the present invention;

FIG. 8 is a schematic circuit diagram of an indicator light set in a wireless temperature measurement tool according to the present invention;

FIG. 9 is a schematic circuit diagram of a power amplifier unit in a wireless temperature measurement tool according to the present invention;

fig. 10 is a frame diagram of a wireless temperature measuring device according to a second aspect of the present invention;

fig. 11 is a schematic circuit diagram of an isolated power supply in a wireless temperature measuring device according to a second aspect of the present invention;

fig. 12 is a schematic circuit diagram of a wireless transmitting unit in a wireless temperature measuring device according to a second aspect of the present invention.

Reference numerals:

the wireless charging device comprises a shell 100, an indicator lamp set 110, a power amplifier unit 120, a main control module 200, a first microprocessor 210, a temperature measuring component 300, an NTC temperature sensor 310, a thermocouple temperature sensor 320, a wireless transmission module 400, a switching module 500, a detection part 600, an energy storage module 700, a charging module 800, a charging socket 810, a wireless charging unit 820, a wireless receiving coil 821, a rectifying circuit 822, an adjusting circuit 823, a feedback circuit 824, a second microprocessor 825, a wireless power supply holder 900, an isolation power supply 910, an alternating current-direct current conversion unit 911, a voltage transformation unit 912, a wireless transmitting unit 920, an operational amplifier circuit 921, a third microprocessor 922, an inverter circuit 923 and a wireless transmitting coil 924.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the designated sandbag or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

According to the utility model discloses a wireless temperature measurement instrument, as shown in fig. 1, fig. 2, including casing 100, host system 200 and two kinds at least temperature measurement parts 300, host system 200 sets up in casing 100, host system 200 respectively with each temperature measurement parts 300 electric connection and can acquire the temperature measurement data of each temperature measurement parts 300.

Therefore, the utility model discloses well two kinds at least temperature measurement part 300 can carry out the accurate measurement to the temperature under the different scope, wherein every kind temperature measurement part 300 all has a temperature measurement scope that can guarantee the temperature measurement precision separately, to the temperature range of difference, selects the temperature measurement part that can guarantee the temperature measurement precision in this temperature range to measure, can reduce the error in the temperature measurement result, improves the authenticity of temperature measurement data.

Specifically, as shown in fig. 3, the main control module 200 is provided with a first microprocessor 210, and the first microprocessor 210 controls other components electrically connected thereto and can detect the operating states of the other components electrically connected thereto.

In some embodiments of the present invention, the two temperature measuring parts 300 are an NTC temperature sensor 310 and a thermocouple temperature sensor 320, respectively.

Specifically, as shown in fig. 4 and 5, the NTC temperature sensor 310 is generally suitable for measuring medium and low temperatures, and the temperature measuring range is from-50 ℃ to 250 ℃; the thermocouple sensor 320 is generally suitable for high temperature measurements ranging from-200 c to 1300 c. Among them, the NTC temperature sensor 310 is a thermistor whose resistance value rapidly decreases as the temperature increases, and one resistance value corresponds to one temperature, so that when the NTC temperature sensor 310 is used to measure the temperature, only the actual resistance value of the thermistor needs to be measured to determine the corresponding temperature. The basic principle of temperature measurement of the thermocouple sensor 320 is that two material conductors with different components form a closed loop, when temperature gradients exist at two ends, current passes through the loop, and electromotive force exists between the two ends, so that corresponding temperature information can be obtained only by measuring the electromotive force.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the wireless transmission module 400 is further included, and the wireless transmission module 400 is electrically connected to the main control module 200.

Specifically, in some embodiments of the present invention, the host 200 and the wireless transmission module 400 are integrated in the same integrated chip. In some other embodiments of the present invention, the wireless transmission module 400 is an independent wireless transmission chip and is connected to the main control module 200 to implement the wireless communication function. After the wireless transmission module 400 is in communication connection with the data terminal, the temperature measurement information can be sent to the data terminal, so that a user can actively inquire the temperature measurement information on the data terminal at any time, and convenience is brought to the user.

Furthermore, in some embodiments of the present invention, the wireless transmission module 400 is a bluetooth transmission module, and the transmission efficiency can be increased by using the bluetooth transmission module to perform wireless transmission, and the power consumption of the bluetooth transmission module is low. The utility model discloses an in some other embodiments, wireless transmission module 400 is WIFI transmission module, and it is very wide to use WIFI transmission module to carry out wireless transmission's coverage, and transmission speed is also fast simultaneously.

In some embodiments of the present invention, the temperature measuring device further includes a switching module 500, wherein the switching module 500 is electrically connected to the main control module 200 to switch and acquire data of different temperature measuring components 300; or, the main control module 200 is electrically connected to each temperature measurement component 300 through the switching module 500 to switch and acquire data of different temperature measurement components 300.

Specifically, in some embodiments of the present invention, the switching module 500 may be two input buttons electrically connected to the main control module 200, the two input buttons respectively correspond to the NTC temperature sensor 310 and the thermocouple temperature sensor 320, and when the first input button is pressed, the main control module 200 sends a control signal for acquiring temperature measurement data to the NTC temperature sensor 310; when the second input button is pressed, the main control module 200 sends a control signal for acquiring temperature measurement data to the thermocouple sensor 320. In other embodiments of the present invention, the switching module 500 is a single-pole double-break switch electrically connected to the main control module 200 and each temperature measuring unit 300, and the single-pole double-break switch controls the on-state of the main control module 200 and the NTC sensor 310 and the thermocouple sensor 320, and the general on-state includes the following three states: firstly, the single-pole double-pound switch is dialed to the first position, and the main control module 200 is in conductive connection with the NTC temperature sensor 310; secondly, the single-pole double-smashing switch is switched to a second position, and the main control module 200 is in conductive connection with the thermocouple temperature sensor 320; third, the single-pole double-pound switch is toggled to the third position, and the main control module 200 is not in conductive connection with either the NTC temperature sensor 310 or the thermocouple temperature sensor 320.

In some embodiments of the present invention, the temperature measuring device further includes a display module (not shown), the display module is electrically connected to the main control module 200, and the display module can display the temperature measuring data acquired by the main control module 200 from the temperature measuring unit 300. The display module can be an LED nixie tube, the cost of the LED nixie tube is low, and temperature measurement information can be displayed visually; display module also can be liquid crystal display, and liquid crystal display can also show other information except that can show the temperature measurement information, and the function is more complete.

In some embodiments of the present invention, the casing 100 is provided with the detection part 600, the temperature measurement component 300 is in contact with the detection part 600, and the detection part 600 can be in contact with an external temperature measurement object and can conduct heat of the temperature measurement object to the temperature measurement component 300.

Specifically, the detection portion 600 has good heat conductivity, and the detection portion 600 protects the temperature measurement component 300, so as to prevent the temperature measurement component 300 from being exposed outside the housing 100 for a long time and being damaged.

In some embodiments of the present invention, the energy storage module 700 and the charging module 800 are disposed on the housing 100 and can be charged and discharged, the energy storage module 700 is connected to the main control module 200 and the temperature measuring unit 300 for supplying power, and the charging module 800 is connected to the energy storage module 700 for charging the energy storage module.

Specifically, the energy storage module 700 is disposed inside the housing 100, so that the volume of the overall temperature measuring tool is not increased, and the portable temperature measuring tool is convenient to carry. The user need not be with when using the utility model discloses a wire connection external power source also can not receive the restriction because of getting the electricity aspect during the temperature measurement. Moreover, the rechargeable nature of the energy storage module 700 avoids the user's inconvenience of having to remove the housing 100 to replace the energy storage module 700 when the energy storage module 700 is unpowered. The energy storage module 700 may be a lithium battery, a nickel-chromium battery or a nickel-hydrogen battery.

In some embodiments of the present invention, as shown in fig. 6, the charging module 800 includes a charging interface 810 disposed on the housing 100, the charging interface 810 is connected to the energy storage module 700, and the charging interface 810 can be electrically connected to an external power source through a wire.

Specifically, in some embodiments of the present invention, the charging interface 810 comprises a constant voltage linear charger electrically connected to an external power source, wherein the input voltage of the constant voltage linear charger is 220V, and the output voltage is 4.2V. The interface 810 that charges can be USB data line socket, and USB data line socket can be Type-A socket, also can be Type-B socket or Type-C socket. Therefore, the USB data line socket may be connected to an external power source through a USB data line, and the energy storage module 700 is charged by the external power source.

In some embodiments of the present invention, the charging module 800 further includes a wireless charging unit 820, and the wireless charging unit 820 is electrically connected to the energy storage module 700.

Specifically, as shown in fig. 7, the wireless charging unit 820 includes a wireless receiving coil 821, a rectifying circuit 822, a regulating circuit 823, a feedback circuit 824, and a second microprocessor 825. The rectifying circuit 822 includes a diode D5, a diode D6, a diode D7, and a diode D8, wherein a cathode of the diode D5 is connected to an anode of the diode D6, an anode of the diode D5 is connected to an anode of the diode D8, a cathode of the diode D6 is connected to a cathode of the diode D7, and an anode of the diode D7 is connected to a cathode of the diode D8. The regulating circuit 823 comprises a transistor Q1 and a transistor Q2, wherein the base of the transistor Q1 is connected to the output of the second microprocessor 825, the emitter of the transistor Q1 is grounded, the collector of the transistor Q1 is connected to the base of the transistor Q2, the emitter of the transistor Q2 is connected to the cathode of the diode D8, and the collector of the transistor Q2 is connected to the cathode of the diode D5. The feedback circuit 824 includes a transistor Q3, a base of a transistor Q3 coupled to the cathode of a diode D6, an emitter of a transistor Q3 coupled to ground, and a collector of a transistor Q3 coupled to an input of a second microprocessor 825. When the wireless charging unit 820 works, the wireless receiving coil 821 can obtain electric energy after mutually inducing with an external device, the wireless receiving coil 821 can emit alternating current after obtaining the electric energy, the alternating current is firstly converted into direct current through the rectifying circuit 822, and meanwhile, the second microprocessor changes the voltage or the current output from the rectifying circuit 822 to the energy storage module 700 by controlling the on and off of the triode Q1 and the triode Q1. When the wireless receiving coil 821 discharges to charge the energy storage module 700, the feedback circuit 824 sends a feedback signal to the second microprocessor 825, and then the second microprocessor adjusts the voltage or current for charging the energy storage module 700 in time according to the feedback signal.

In some embodiments of the present invention, as shown in fig. 1 and fig. 8, the housing 100 is further provided with an indicator set 110, and the indicator set 110 is electrically connected to the main control module 200.

Specifically, the indicator light group 110 may include a status indicator light of the display module, and a user may distinguish the working status of the display module by turning on or off the status indicator light, and when the status indicator light of the display module is green, the display module is normally operated; when the status indicator light of the display module is not on, the display module is in a closed or standby state. The indicator light set 110 may further include a status indicator light of the wireless transmission module 400, and similarly, when the status indicator light of the wireless transmission module 400 is green, it indicates that the wireless transmission module 400 is in communication connection with the data terminal, and when the status indicator light of the wireless transmission module 400 is not turned on, it indicates that the wireless transmission module 400 is not in communication connection with the data terminal.

In some embodiments of the present invention, as shown in fig. 1 and fig. 9, the casing 100 is further provided with a power amplifier unit 120, and the power amplifier unit 120 is electrically connected to the main control module 200.

Specifically, the power amplifier unit 120 may be a speaker, and the speaker can broadcast a prompt voice when the wireless transmission module 400 is successfully connected with the data terminal or the connection is cancelled; the power amplifier unit 120 may also be a buzzer, which can send an indication sound when the wireless transmission module 400 is successfully connected with the data terminal or the connection is cancelled.

According to the utility model discloses in some embodiments of a wireless temperature measurement instrument system of second aspect, as shown in fig. 10, including the wireless temperature measurement instrument and the wireless power supply seat that some embodiments disclosed above disclose, wireless power supply seat 900 and wireless temperature measurement instrument coupling are connected in order to carry out wireless charging to wireless temperature measurement instrument.

Specifically, the wireless thermometry tool and the wireless power supply stand 900 can both generate a magnetic field, and the two magnetic fields can resonate at a specific frequency, and at this time, the wireless power supply stand 900 can transmit energy to the wireless thermometry tool to realize the wireless charging function. Therefore, the wireless power supply holder 900 can charge the wireless temperature measuring tool wirelessly, so that a user does not need to be provided with a charging data line, and convenience is brought to the user.

According to some embodiments of the present invention, the wireless power supply stand 900 includes an isolation power supply 910 and a wireless transmitting unit 920, and the isolation power supply 910 is electrically connected to the wireless transmitting unit 920.

Specifically, in some embodiments of the present invention, as shown in fig. 11, the isolation power supply 910 includes an ac/dc conversion unit 911 and a voltage transformation unit 912, external ac flows in from an input end of the isolation power supply 910, is firstly voltage-stabilized, is then converted into dc power by the ac/dc conversion unit 911, is then input to a primary coil in the voltage transformation unit 912, is finally output from a secondary coil of the voltage transformation unit 912 to supply power to the wireless transmission unit 920, and a voltage value of the dc power output from the secondary coil of the voltage transformation unit 912 is determined according to a voltage of the primary coil and a turn ratio of the primary coil to the secondary coil. The utility model discloses an in other some embodiments, wireless power supply seat 900 also can include non-isolation power, non-isolation power and wireless transmitting unit 920 electric connection, and direct current step-down circuit in the non-isolation power can realize converting high voltage direct current to low voltage direct current's function to alternating current direct current's conversion can not appear in its course of the work.

In addition, in some embodiments of the present invention, as shown in fig. 12, the wireless transmitting unit 920 includes an operational amplifier circuit 921, a third microprocessor 922, an inverter circuit 923, and a wireless transmitting coil 924. The inverter circuit 923 includes two switching tubes. The isolation power supply 910 provides direct current for the wireless transmitting unit 920, after the direct current enters the wireless transmitting unit 920, the direct current is amplified by the operational amplifier circuit 921 and then enters the third microprocessor 922, then the third microprocessor 922 outputs a PWM signal to the inverter circuit 923, and the third processor 822 can control the two switching tubes in the inverter circuit 923 to be switched on or switched off according to the PWM signal, so as to change the voltage or current of the alternating current output to the wireless transmitting coil 924, and indirectly control the voltage or current for charging the energy storage module 700. After the electrified wireless transmitting coil 924 and the wireless receiving coil 921 in the wireless charging unit 820 are mutually induced, electric energy is conducted to the wireless charging unit 820, and then the energy storage module 700 is charged.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A wireless thermometry tool, comprising:

a housing (100);

a main control module (200) disposed within the housing (100);

the main control module (200) is electrically connected with each temperature measurement component (300) respectively and can acquire temperature measurement data of each temperature measurement component (300).

2. A wireless thermometry tool according to claim 1, wherein: the two temperature measuring components (300) are an NTC temperature sensor (310) and a thermocouple temperature sensor (320).

3. A wireless thermometry tool according to claim 1, wherein: the wireless transmission device is characterized by further comprising a wireless transmission module (400), wherein the wireless transmission module (400) is electrically connected with the main control module (200).

4. A wireless thermometry tool according to claim 1, wherein: the temperature measuring device further comprises a switching module (500), wherein the switching module (500) is electrically connected with the main control module (200) to switch and acquire different data of the temperature measuring component (300); or the main control module (200) is electrically connected with each temperature measurement component (300) through the switching module (500) respectively so as to switch and acquire data of different temperature measurement components (300).

5. A wireless thermometry tool according to claim 1, wherein: the casing (100) is provided with a detection part (600), the temperature measurement component (300) is in contact with the detection part (600), and the detection part (600) can be in contact with an external temperature measurement object and can conduct heat of the temperature measurement object to the temperature measurement component (300).

6. A wireless thermometry tool according to claim 1, wherein: the temperature measurement device is characterized by further comprising a chargeable and dischargeable energy storage module (700) and a charging module (800) which are arranged on the shell (100), wherein the energy storage module (700) is connected with the main control module (200) and the temperature measurement component (300) respectively to supply power, and the charging module (800) is connected with the energy storage module (700) to charge the energy storage module.

7. A wireless thermometry tool according to claim 6, wherein: the charging module (800) comprises a charging interface (810) arranged on the shell (100), the charging interface (810) is connected with the energy storage module (700), and the charging interface (810) can be electrically connected with an external power supply through a wire.

8. A wireless thermometry tool according to claim 7, wherein: the charging module (800) further comprises a wireless charging unit (820), and the wireless charging unit (820) is electrically connected with the energy storage module (700).

9. A wireless thermometry apparatus comprising a wireless thermometry tool according to claim 8 and a wireless power base (900), the wireless power base (900) coupled to the wireless thermometry tool for wirelessly charging the wireless thermometry tool.

10. A wireless thermometry apparatus according to claim 9, wherein: the wireless power supply holder (900) comprises an isolation power supply (910) and a wireless transmitting coil (920), wherein the isolation power supply (910) is electrically connected with the wireless transmitting coil (920).

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