Thermometer with wireless charging function
Patent Information
- Application Number
- CN202520604060.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-01
AI Technical Summary
[0003]目前大多数电子体温计都是采用纽扣电池进行供电,这种电池不可充电,电量耗完后需要更换,使用较为不便
[0015] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up a charging box to provide wireless charging for the thermometer, there is no need to replace the battery, which is more convenient to use; at the same time, the charging box has two separate cavities, which can separate the thermometer body and the functional components of the charging box, which can prevent mutual interference and improve the structural strength of the charging box.
Smart Images

Figure CN223940412U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thermometers, and specifically relates to a thermometer with wireless charging function. Background Technology
[0002] Electronic thermometers consist of an NTC thermistor, an LED display, a dedicated integrated circuit, and other electronic components. They can quickly and accurately measure human body temperature. Compared with traditional mercury glass thermometers, they have advantages such as convenient reading, short measurement time, and high measurement accuracy. In particular, electronic thermometers do not contain mercury and are harmless to the human body and the surrounding environment, making them especially suitable for use in homes, hospitals, and other places.
[0003] Most electronic thermometers currently use button batteries for power. These batteries are non-rechargeable and need to be replaced when the power is depleted, making them inconvenient to use. Utility Model Content
[0004] To address the aforementioned issues, the purpose of this invention is to provide a thermometer with wireless charging functionality, which can be wirelessly charged via a charging case, eliminating the need for battery replacement and making it more convenient to use.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] This utility model provides a thermometer with wireless charging function, including: a thermometer body and a charging box. The thermometer body is installed in the charging box. The thermometer body includes a first control board, a battery, and a wireless charging receiving coil. The charging box includes a second control board and a wireless charging transmitting coil. The battery and the wireless charging receiving coil are both electrically connected to the first control board. The wireless charging transmitting coil is electrically connected to the second control board, and the wireless charging receiving coil and the wireless charging transmitting coil are arranged opposite to each other.
[0007] Furthermore, the thermometer body also includes a thermometer housing, and the first control board, battery, and wireless charging receiving coil are all disposed inside the thermometer housing and fixed to the inner wall of the thermometer housing.
[0008] Furthermore, the thermometer body also includes a temperature measuring cap, which is installed at the lower end of the thermometer housing. The temperature measuring cap is also equipped with an NTC thermistor, which is electrically connected to the first control board.
[0009] Furthermore, the thermometer body includes a first magnetic component, which is mounted on the thermometer housing, and the charging box includes a second magnetic component that is magnetically attracted to the first magnetic component, with the first magnetic component and the second magnetic component corresponding to each other in position.
[0010] Furthermore, the thermometer body also includes an LED screen bracket, which is installed on the inner wall of the housing.
[0011] Furthermore, the thermometer body also includes a buzzer, which is disposed inside the thermometer housing and electrically connected to the first control board.
[0012] Furthermore, the thermometer housing includes an upper thermometer housing and a lower thermometer housing. The upper thermometer housing covers the lower thermometer housing to form a cavity. The first control board, battery, wireless charging receiving coil, first magnetic component, and buzzer are all disposed within the cavity.
[0013] Furthermore, the charging box includes an upper cover, a middle shell, and a base. The upper cover covers the base, and the middle shell is disposed between the upper cover and the base. A first receiving cavity is formed between the upper cover and the middle shell, and a second receiving cavity is formed between the middle shell and the base. The thermometer body is installed in the first receiving cavity, and the second control board, the wireless charging transmitting coil, and the second magnetic component are installed in the second receiving cavity.
[0014] Furthermore, the outer wall of the base is provided with a slot around its periphery, and the inner wall of the middle shell is provided with a buckle around its periphery, and the buckle and the slot are detachably engaged.
[0015] The beneficial effects of this utility model are as follows: Compared with the prior art, by setting up a charging box to provide wireless charging for the thermometer, there is no need to replace the battery, which is more convenient to use; at the same time, the charging box has two separate cavities, which can separate the thermometer body and the functional components of the charging box, which can prevent mutual interference and improve the structural strength of the charging box. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the thermometer body.
[0017] Figure 2 This is a structural diagram of the charging case.
[0018] Figure 3 This is an exploded view of a thermometer.
[0019] In the diagram: 1. Thermometer body; 11. First control board; 12. Battery; 13. Wireless charging receiver coil; 14. Temperature measuring cap; 15. LED screen bracket; 16. First magnetic component; 17. Buzzer; 18. Thermometer upper shell; 19. Thermometer lower shell; 2. Charging box; 21. Second control board; 22. Wireless charging transmitter coil; 23. Second magnetic component; 24. Top cover; 25. Middle shell; 26. Base; 27. First receiving cavity; 28. Second receiving cavity; 29. Slot. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0021] To achieve the above objectives, the technical solution of this utility model is as follows:
[0022] See Figure 1-3 As shown, this embodiment provides a thermometer with wireless charging function, including: a thermometer body 1 and a charging box 2. The thermometer body 1 is installed in the charging box 2. The thermometer body 1 includes a first control board 11, a battery 12, and a wireless charging receiving coil 13. The charging box 2 includes a second control board 21 and a wireless charging transmitting coil 22. The battery 12 and the wireless charging receiving coil 13 are both electrically connected to the first control board 11. The wireless charging transmitting coil 22 is electrically connected to the second control board 21, and the wireless charging receiving coil 13 and the wireless charging transmitting coil 22 are arranged opposite to each other.
[0023] In this embodiment, the first control board 11 and the second control board 21 are PCB boards with wireless charging control function, and the battery is a rechargeable lithium battery. When the thermometer body 1 is installed in the charging box 2, it can wirelessly charge its battery 12 through the cooperation of the wireless charging receiving coil 13, without the need to replace the battery 12, which is more convenient to use.
[0024] Furthermore, the thermometer body 1 also includes a thermometer housing, and the first control board 11, battery 12, and wireless charging receiver coil 13 are all disposed inside the thermometer housing and fixed to the inner wall of the thermometer housing.
[0025] Furthermore, the thermometer body 1 also includes a steel temperature measuring cap 14, which is installed at the lower end of the thermometer housing. An NTC thermistor is installed inside the temperature measuring cap 14. The first control board 11 contains an MCU and a temperature measuring circuit, with the NTC thermistor connected to the temperature measuring circuit. The temperature is measured by the NTC thermistor inside the temperature measuring cap 14, and the temperature information is transmitted to the first control board 11 and then displayed on the LED screen bracket 15.
[0026] Furthermore, the thermometer body 1 includes a first magnetic component 16, which is mounted on the thermometer housing. The charging case 2 includes a second magnetic component 23 that is magnetically attracted to the first magnetic component 16. The first magnetic component 16 and the second magnetic component 23 are positioned correspondingly. Both the first magnetic component 16 and the second magnetic component 23 are magnets, or one of them is a magnet, and the other is a magnetic metal component. They can be magnetically connected to each other, facilitating the positioning and installation of the thermometer body 1 into the charging case 2.
[0027] Furthermore, the thermometer body 1 also includes an LED screen bracket 15, which is installed on the inner wall of the housing and covers the first control board 11. The first control board 11 is provided with LED beads, and the LED screen bracket 15 has a light-transmitting hole. The LED beads emit light through the light-transmitting hole to display temperature data.
[0028] Furthermore, the thermometer body 1 also includes a buzzer 17, which is disposed inside the housing and electrically connected to the first control board 11. When the temperature stops changing, the buzzer 17 will emit an sound to remind the user that the temperature measurement is complete.
[0029] Furthermore, the thermometer housing includes an upper thermometer shell 18 and a lower thermometer shell 19. The upper thermometer shell 18 covers the lower thermometer shell 19 to form a cavity. The first control board 11, battery 12, wireless charging receiving coil 13, first magnetic component 16, and buzzer 17 are all disposed in the cavity.
[0030] Furthermore, the charging box 2 includes an upper cover 24, a middle shell 25, and a base 26. The upper cover 24 covers the base 26, and the middle shell 25 is disposed between the upper cover 24 and the base 26, forming a first receiving cavity 27 between the upper cover 24 and the middle shell 25. A second receiving cavity 28 is formed between the middle shell 25 and the base 26. The thermometer body is installed in the first receiving cavity 27, and the second control board 21, the wireless charging transmitting coil 22, and the second magnetic component 23 are installed in the second receiving cavity 28. In this embodiment, by providing the middle shell 25 inside the charging box 2, the space between the upper cover 24 and the base 26 can be separated to form two separate cavities, allowing the thermometer body 1 and the functional components of the charging box 2 to be installed separately. This prevents mutual interference and improves the structural strength of the charging box 2.
[0031] Furthermore, the outer wall of the base 26 is provided with a slot 29 around its periphery, and the inner wall of the middle shell 25 is provided with a buckle around its periphery. The buckle and the slot 29 can be detachably engaged, which facilitates the disassembly and assembly of the two while ensuring that the connection between them is fixed. This facilitates the installation and replacement of components such as the second control board 21, the wireless charging transmitting coil 22, and the second magnetic component 23.
[0032] The method of using the thermometer in this embodiment is as follows:
[0033] 1. After shaking the thermometer or removing it from the charging box 2 to stop charging and wake it up, place it under the armpit and clamp it tightly. The front end of the temperature measuring cap 14 should be close to the armpit. The resistance of the NTC thermistor changes due to temperature. After being processed by the temperature measuring circuit and MCU, the temperature is displayed on the LED screen bracket 15. At the same time, the buzzer 17 sounds to indicate that the measurement is over.
[0034] 2. When the thermometer's battery is low, since it is equipped with a rechargeable lithium battery, first connect the charging box 2 to a 5V / 1A DC power supply, then place the thermometer in the charging box 2. The thermometer is positioned by a magnet, so that the wireless charging transmitting coil 22 and the wireless charging receiving coil 13 overlap, and wireless charging begins.
[0035] The wireless charging principle is as follows: the transmitting module converts DC power into AC power through an oscillation circuit, which then flows through the wireless charging transmitting coil 22 to generate a magnetic field. After mutual inductive coupling between the wireless charging receiving coil 13 and the wireless charging transmitting coil 22, the wireless charging receiving coil 13 generates AC power, which then flows through a rectifier and filter circuit and then through a charging circuit to charge the lithium battery. When the thermometer is not in use, it can be stored in the charging case. The charging case does not charge when it is not connected to DC power.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A thermometer with wireless charging function, characterized in that, include: The thermometer body and the charging box are provided. The thermometer body is installed in the charging box. The thermometer body includes a first control board, a battery, and a wireless charging receiving coil. The charging box includes a second control board and a wireless charging transmitting coil. The battery and the wireless charging receiving coil are electrically connected to the first control board. The wireless charging transmitting coil is electrically connected to the second control board, and the wireless charging receiving coil and the wireless charging transmitting coil are arranged opposite to each other.
2. A thermometer with wireless charging function as described in claim 1, characterized in that, The thermometer body also includes a thermometer housing. The first control board, battery, and wireless charging receiver coil are all disposed inside the thermometer housing and fixed to the inner wall of the thermometer housing.
3. A thermometer with wireless charging function as described in claim 2, characterized in that, The thermometer body also includes a temperature measuring cap, which is installed at the lower end of the thermometer housing. The temperature measuring cap is also equipped with an NTC thermistor, which is electrically connected to the first control board.
4. A thermometer with wireless charging function as described in claim 2, characterized in that, The thermometer body includes a first magnetic component, which is mounted on the thermometer housing. The charging box includes a second magnetic component that is magnetically attracted to the first magnetic component, and the first and second magnetic components are positioned corresponding to each other.
5. A thermometer with wireless charging function as described in claim 2, characterized in that, The thermometer body also includes an LED screen bracket, which is installed on the inner wall of the housing.
6. A thermometer with wireless charging function as described in claim 2, characterized in that, The thermometer body also includes a buzzer, which is disposed inside the thermometer housing and electrically connected to the first control board.
7. A thermometer with wireless charging function as described in claim 1, characterized in that, The charging box includes an upper cover, a middle shell, and a base. The upper cover covers the base, and the middle shell is disposed between the upper cover and the base. A first receiving cavity is formed between the upper cover and the middle shell, and a second receiving cavity is formed between the middle shell and the base. The thermometer body is installed in the first receiving cavity, and the second control board and the wireless charging transmitting coil are installed in the second receiving cavity.
8. A thermometer with wireless charging function as described in claim 7, characterized in that, The outer wall of the base is provided with a slot around its periphery, and the inner wall of the middle shell is provided with a buckle around its periphery. The buckle and the slot can be detachably engaged.