Magnetic attraction temperature control box for healthcare article
The magnetic adsorption temperature control box addresses the issues of wire tangles and inconvenience in traditional health care products by integrating a magnetic adhesion system with a single chip control circuit, providing a compact, constant temperature solution that enhances user convenience and safety.
Patent Information
- Application Number
- JP2023154052
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-09-21
- Filing Date
- 2023-09-21
- Publication Date
- 2025-04-14
- Estimated Expiration
- 2043-09-21
AI Technical Summary
Traditional health care products, such as far-infrared neck protectors, suffer from 'wire tangle problems' and inconvenience due to the need for separate temperature control boxes and mobile power supplies, which can be cumbersome for users, especially the elderly.
A magnetic adsorption temperature control box is integrated with health care products, featuring a display screen, single chip control circuit, and four magnets arranged diagonally at the bottom, allowing for magnetic adhesion with corresponding magnets in the health care product, eliminating the need for wire bundles and providing a compact, convenient solution.
The magnetic adsorption temperature control box achieves constant temperature thermocompression, enhances user convenience by eliminating wire tangles and the need to carry a separate power supply, and ensures safety by providing a secure, integrated heating solution.
Smart Images

Figure 2025062147000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a temperature control box, specifically to a magnetic adsorption temperature control box that is integrated with health care products to achieve constant temperature function. [Background technology]
[0002] Currently, the market is flooded with health care products known as "far infrared". The formation of far infrared is greatly influenced by various temperature factors.
[0003] At present, in the domestic and foreign markets, far-infrared health care products suitable for human body are commonly used, such as eye masks, electric scarves, neck protectors, waist belts, etc. Most of these textile (fabric) health care products have a fixed sewn-in heating (electric or chemical heat) unit, or a heating (electric or chemical heat) unit is sewn-in together with an additional temperature controller (temperature control box) to control the heat compression temperature in these health care products.
[0004] In general online and brick-and-mortar markets, traditional neck protectors are offered, and generally, packages are provided that include the three main components of the product: a neck protector, a temperature control box, and a mobile power source.
[0005] Obviously, between the traditional neck protector, the temperature control box and the mobile power supply, there is about 30 cm of wire bundle to control the temperature and heating time inside the traditional neck protector.
[0006] This wire bundle "wraps" around the user's neck, chest, or arms, often causing "wire tangle problems." In addition, when the user wears this neck protector, for example, an elderly person who cannot easily have a "pocket" to store this mobile power supply 30 will have the problem of "having to hold the mobile power supply 30 in their hands."
[0007] The inventor of this invention has searched for technical literature on "magnetic adsorption", "magnetic adsorption and health care products", and "integration and health care products" through the patent search system, but has not yet found any information related to the content of this application. Summary of the Invention [Problem to be solved by the invention]
[0008] In order to achieve a more ideal concept of "heat compression health care use", it is necessary to provide solutions to the common problems that traditional health care products cause to users, and improve the "convenience" and "safety" of users. This is certainly a need in the market.
[0009] This patent application (hereinafter referred to as the case) relates to a magnetic adsorption temperature control box for health care products, where the "temperature control box" is used as the corresponding "subject" for temperature control of far-infrared health care products related to the previous technology, etc. In other words, the temperature control box is "limited to use" in textile products such as neck protectors, waist belts, knee pads, wrist heating compressions, etc., which are the "corresponding" health care products for temperature control. [Means for solving the problem]
[0010] The magnetic adsorption temperature control box for health care products of the present invention is characterized in that the corresponding health care product includes four magnets, the temperature control box has a display screen on its surface, a single-chip control circuit inside, and four magnets arranged diagonally in a rectangle at the bottom, which are integrated by combining with the four magnets included in the corresponding health care product through the four magnets, thereby achieving the functions of heat compression at a constant temperature and convenient and safe health care products.
[0011] In the present invention, it is preferable that a power switch and a Type-C battery charging interface are further provided on a side of the temperature control box.
[0012] In the present invention, it is preferred that the display screen further displays temperature and time parameter data and a charging state warning symbol in a touchable manner.
[0013] In the present invention, the single-chip control circuit preferably includes a PWM control unit, an NTC thermistor, an NMOS switch, and a battery management unit.
[0014] In the present invention, the health care product preferably includes an NTC thermistor and a heating unit.
[0015] In the present invention, the NTC thermistor preferably detects the heating temperature of the heating unit.
[0016] In the present invention, it is preferred that the four magnets arranged at the bottom of the temperature control box are electrically connected with the four magnets included in the corresponding health care product.
[0017] In the present invention, the four magnets set at the bottom of the temperature control box preferably include two magnets which can make the NTC thermistor conductive and connect to the NMOS switch of the heating unit.
[0018] In the present invention, it is preferable that the two magnets of the heating unit are arranged diagonally, and the two magnets of the NTC thermistor are arranged diagonally on another side.
[0019] In the present invention, the battery management unit preferably controls the temperature of the rechargeable battery for overcharging and overdischarging.
[0020] To further understand the technical features of this temperature control box, which is used to control the temperature of health care products such as those mentioned above, please refer to the diagram and description below. [Brief description of the drawings]
[0021] [Figure 1] A conceptual diagram of a traditional neck protector using a temperature control box. [Diagram 2] Please refer to the conceptual diagram of this neck protector using a temperature control box. [Diagram 3] A conceptual diagram of the use process of the temperature control box for this neck protector is shown below. [Figure 4] A schematic diagram of the magnetic blocking area on the neck protector in question is shown below. [Diagram 5] A schematic diagram of the magnetic block on the neck protector in this case is shown below. [Figure 6] A schematic diagram of the front of the control box is shown below. [Figure 7] A schematic diagram of the rear of the control box is shown below. [Figure 8] A schematic diagram of the magnetic block area on the control box is shown below. [Figure 9] A schematic diagram of the single-chip control circuit is shown. [Figure 10] Below is a schematic diagram of the arrangement of the four magnets at the bottom of the control box. [Figure 11] A schematic diagram of the placement of the four magnets on this health care product is shown below. [Figure 12] A schematic diagram of the front arrangement of the four magnets is shown below. [Figure 13] A schematic diagram of four magnets arranged upside down is shown below. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0022] The disclosed embodiments below provide different features for achieving the provided goals. The description of specific instances of particular components and arrangements is for the purpose of briefly explaining the case and is not intended to be limiting or to specify a relationship to the discussed embodiment and / or configuration.
[0023] Relative terminology, such as enumerated, is used in this document for descriptive purposes to describe the relationship of one component or feature to another as illustrated, but is not intended to limit this disclosure.
[0024] Figure 1 is a conceptual diagram of how traditional neck protectors use a temperature control box, and Figure 2 is a conceptual diagram of how the neck protector in this case uses a temperature control box.
[0025] As shown in Figure 1 and Figure 2, the overall appearance of the traditional neck protector using a temperature control box includes a neck protector 10T, a temperature control box 20T, and a mobile power supply 30T. In this embodiment, the mobile power supply 30T uses a 18650 battery, which is currently the most commonly used cylindrical lithium battery, and is a battery module commonly used in laptop batteries, digital cameras, mobile power supplies, TESLA electric vehicles, electric motorcycles, etc. The "18" in the name of "18650" represents "diameter 18mm", "65" represents "length 65mm", and "0" refers to a cylindrical battery, which is approximately the same size as a general AA battery.
[0026] As shown in FIG. 2, the overall appearance of the neck protector using the temperature control box in this case includes a neck protector 10 and a temperature control box 20.
[0027] Obviously, the functions of the temperature control box 20 in this case at least include the functions of the traditional temperature control box 20T and the mobile power supply 30T.
[0028] As shown in Figure 1, there is a long wire 221 connecting the neck protector 10T and the temperature control box 20T, and there is a short wire 231 connecting the temperature control box 20T and the mobile power supply 30T.
[0029] Generally speaking, this wire bundle 221 has a length of about 30 to 40 cm. In simple terms, when a user wears this neck protector 10T, this wire bundle 221 between the user's neck and the temperature control box 20T often "wraps" around the user's neck, chest, or arms, causing the "wire tangle problem".
[0030] In addition, the temperature control box 20T has a wire bundle 231 that connects to a set of mobile power supplies 30T through a connector. When a user wears this neck protector 10T, for example, an elderly person who cannot easily have a "pocket" to accommodate this mobile power supply 30T will have a problem that "they have to hold the mobile power supply 30T in their hands".
[0031] As shown in Figure 1, it obviously not only causes the "problem of tangled wires", but also causes the problem of "holding or forgetting to bring the mobile power supply 30T".
[0032] As shown in Figure 2, the temperature control box 20 in this case replaces the functions of the traditional temperature control box 20T and the mobile power supply 30T, so as to solve the problem of "tangled wires and forgetting to carry the mobile power supply 30T".
[0033] As shown in Figure 2, the solution to the aforementioned problem in this case is to provide a temperature control box 20 with a touch unit (see Figure 6) and a magnetic adsorption unit (see Figure 7) to replace the traditional temperature control box 20T and mobile power supply 30T.
[0034] The magnetic adsorption unit is set at the bottom of the temperature control box 20 and contains four magnets that correspond to and attract the four magnets set on the neck protector 10. This allows the neck protector 10 and the temperature control box 20 to magnetically adhere to each other to form an "integrated" unit, eliminating the two wire bundles 221 / 231. By eliminating these two wire bundles 221 / 231, the problem of "tangled wires and forgetting to carry the mobile power supply 30T" can be solved.
[0035] The touch unit includes a display screen set on the surface of the temperature control box 20, and a battery and temperature control circuit set inside the temperature control box 20, which can solve the problem of "holding or forgetting to bring the mobile power supply 30T".
[0036] As shown in FIG. 2, obviously, the temperature control box 20 of the present invention is used as a temperature-controlled "corresponding" health care product for textile products such as neck protectors, waist belts, knee pads, electric scarves, etc.
[0037] Specifically, as shown in FIG. 2, the temperature control box 20 of the present invention cannot "control" the traditional neck protector 10T shown in FIG.
[0038] Also, as shown in FIG. 2, the subject neck protector 10 is not "controlled" by the traditional temperature control box 20T shown in FIG.
[0039] It is noteworthy that, as shown in Figures 1 and 2, the neck protector 10 and temperature control box 20 of the present invention and the traditional neck protector 10T and temperature control box 20T are obviously structurally different.
[0040] Please refer to the following diagram to further explain the difference between Figure 1 and Figure 2. The conceptual diagram of the use process of the temperature control box for neck protector in this case is shown in Figure 3. As shown in Figure 3, the simple process description of the use of the temperature control box 20 for neck protector 10 in this case is within the two dashed line diagrams including the neck protector 10 and the temperature control box 20, and is detailed in the five steps of the following explanations S1 to S5.
[0041] S1: This case neck protector 10 has an additional NTC thermistor inside compared to the traditional neck protector 10T, which is used to detect the temperature change of the heating unit (heater) inside the neck protector 10 and send its analog signal to the single chip processor MCU in the temperature control box 20 for analysis and processing.
[0042] S2: The single-chip processor MCU in the temperature control box 20 of this case processes this analog signal, converts it into a digital signal (digital signal), and outputs it to the PWM pulse control circuit (not shown in the diagram).Then the PWM pulse control circuit forms a pulse width duty ratio, and then outputs to the NMOS switch circuit to "on" or "off" the power supply of the heating temperature of the heating unit in the neck protector 10, so as to achieve the advantage of "constant temperature" within the set range.
[0043] S3: The battery in the battery management unit in the temperature control box 20 of this case provides power for the single-chip processor MCU in the temperature control box 20. The output of this MCU is transmitted to the heating unit in the neck protector 10 through an NMOS switch. Here, the single-chip microcontroller (MCU) adjusts the heating operation of the heating unit based on the temperature "change" information detected by the NTC thermistor.
[0044] However, it should be noted that, as shown in FIG. 1, the traditional neck protector 10 does not have an NTC thermistor to detect the change in the heating temperature inside the neck protector 10. Therefore, the traditional temperature control box 20 simply supplies the power provided by the battery to the corresponding heating unit inside the neck protector 10 to provide the heat, but is completely unaware of the "change" in the heating temperature inside the traditional neck protector 10.
[0045] In other words, as shown in Figure 1, the temperature control box 20 "does not know" whether the heating temperature of the heating unit in this neck protector 10 "meets the default temperature (for example, the default is 42°C)? Is it too hot or too cold?"
[0046] S4: The display unit (Display) of this case is more advanced than the display screen on the surface of the temperature control box 20 shown in Figure 1, and displays at least more symbols (graphics) related to battery charging and charging status warning symbols, providing the advantage of "convenience" to users.
[0047] In summary, as shown in Figures 1, 2 and 3, the temperature control box 20 in this case can control the corresponding neck protector 10 and make appropriate "compensation" or "correction" based on "Is the heating temperature of the heating unit in the neck protector 10 too hot or too cold? Is it within the default temperature range?" to achieve the "constant temperature" function within the default temperature range.
[0048] S5: As shown in Figure 2, the neck protector 10 and the temperature control box 20 form an integrated unit through the mutual attraction of two groups of four corresponding magnets (see the subsequent examples in Figures 5, 7 and 9), solving the problem of "tangling wires and forgetting to bring a mobile power source", and achieving the functions of convenience and safety.
[0049] It is noteworthy that not only can the mutual attraction of the four corresponding magnets in the two groups form an integrated unit, but the mutual attraction of the four corresponding magnets in these two groups can also form an "iron bridge" between the neck protector 10 and the temperature control box 20, and can guide electrical signals including power and temperature data.
[0050] The beneficial effect of this case is that the purpose of this case is to provide "integrated, constant temperature heat compression and convenient and safe" magnetic adsorption temperature control box than traditional neck protectors (health care products)10. For example, in the above Figure 1 and Figure 2, the neck protector (10 / 10T) and the control box (20 / 20T) in both figures have the same Chinese name, but their structures and functions are completely different.
[0051] First, let's take a quick example of the traditional neck protector 10T to illustrate the common problems caused by traditional healthcare products.
[0052] What are the wire bundles 221 / 231 in Figure 1 used for?The wire bundles 221 / 231 in Figure 1 are both used to conduct the 5V battery power provided by the mobile power supply 30T.
[0053] This wire bundle 221 is for the Temperature Control Box 20T to conduct 5V battery power to the heating unit (not shown) in the Neck Protector 10T for heating. This wire bundle 231 is for conducting 5V battery power to the 'control' circuitry and 'heating' temperature requirements in the Temperature Control Box 20T.
[0054] In addition, the traditional temperature control box 20T in Figure 1 has a display panel on the front to display relevant control data. This display panel can display the temperature control range button '36~50℃', the time range button '20~60 minutes' and / or the real-time display value of temperature / time, etc.
[0055] Specifically, the Mobile Power Supply 30T simply 'provides' the 5V battery power required by the Heating Unit in the Neck Protector 10T for heating. The Temperature Control Box 20T simply 'controls and distributes' the 5V battery power required by the Heating Unit for heating.
[0056] In other words, the temperature control box 20T simply 'controls and distributes' the power required by the heating unit for heating, but does not detect the heating temperature of the heating unit, the consumption state, or 'feedback' the power. Specifically, the temperature control box 20T in Figure 1 simply 'provides' the power required by the heating unit in the neck protector 10T for heating, but has no knowledge of changes in the heating temperature in the neck protector 10T.
[0057] In Figure 2, the neck protector 10 of this case uses a temperature control box 20, and from the outside, it contains two main components: the neck protector 10 and the temperature control box 20. Obviously, comparing Figure 2 with Figure 1, the wire bundle 221 / 231 and the mobile power supply 30T have been reduced. Specifically, by reducing these wire bundles 221 / 231, it solves the 'wire tangle problem' and the inconvenience brought by mobile power supply 30T.
[0058] The front of the temperature control box 20 / 20T in Figures 1 and 2 can display the heating temperature and heating time data of the neck protector 10, and the temperature control box 20 in Figure 2 also includes a symbol for the charge / discharge status of the built-in battery.
[0059] Furthermore, in this case of 'magnetic adsorption temperature control box for health care products', the temperature control box 20 includes the following technical features: a display screen set on the surface of the temperature control box 20, a single-chip control circuit set inside the temperature control box 20, and four magnets arranged in a rectangular diagonal arrangement on the bottom of the temperature control box 20.
[0060] To achieve the purpose of this case, we refer to the "magnetic adsorption temperature control box for health care products" which has "integrated, constant temperature and heat compression functions" rather than the traditional control box. The schematic diagram of the magnetic block area on the neck protector of this case is shown in Figure 4, the schematic diagram of the magnetic block on the neck protector is shown in Figure 5, the schematic diagram of the front of the control box of this case is shown in Figure 6, the schematic diagram of the back of the control box of this case is shown in Figure 7, and the schematic diagram of the magnetic block area on the control box is shown in Figure 8.
[0061] As shown in Figure 4, the front of the neck protector 20 in this case and the traditional neck protector 10T have the "same" features: both have a protector body 10A1 in the center, and two stretchable strips 10A3 extending from both sides of the protector body 10A1, and the ends of the stretchable strips 10A3 have Velcro® to adjust the thickness of the user's neck. However, in Figure 4, this embodiment only illustrates the "different" features of both fronts.
[0062] As shown in Figure 4, the difference between the front of this case neck protector 10 and the traditional neck protector 10T is: In this case neck protector 10, there is an additional magnetic blocking area 10A2 in the upper right corner of the front surface 10A.
[0063] As shown in Figure 5, the magnetic block area 10A2 in the upper right corner of the front surface 10A of the neck protector 10 of this case has four magnetic blocks arranged in a rectangular arrangement. For clarity, let us assume that each of these four magnetic blocks exhibits a convex shape (indicated by a black box), and they are called convex magnets (or magnets).
[0064] As shown in Figure 6, the front surface 20A of the temperature control box 20 in this case includes a display panel 20A1. In this embodiment, the display panel 20A1 is operated in a "touch mode" and is also called the touch panel 20A1. However, this is not a limitation, and it can also be operated in a "button mode", for example.
[0065] In the display panel 20A1, for example, in the "touch mode" of this embodiment, as shown in FIG. 6, when the "fire character symbol (representing temperature) 20A11" is touched, the touch panel 20A1 immediately displays the corresponding "40°C". When the "fire character symbol 20A11" is touched again, it jumps to "50°C". When the "fire character symbol 20A11" is touched again, it jumps sequentially to a maximum of "60°C". When it is touched again, it returns to "40°C" and continues to jump sequentially. However, this is not limited to these temperature data.
[0066] Among them, "40°C" in the above example is called the "default temperature range" in this embodiment. This "default temperature range" includes "40°C ± tolerance". For example, this "range" includes "40°C ±0.5°C", "50°C ±0.5°C", and "60°C ±0.5°C".
[0067] Similarly, as shown in Figure 6, when you touch "Clock symbol (representing hour) 20A12", the touch panel 20A1 will immediately display the corresponding "20 minutes". When you touch "Clock symbol 20A12" again, it will jump to "40 minutes". When you touch "Clock symbol 20A12" again, it will jump sequentially up to "60 minutes". When you touch it again, it will go back to "20 minutes" and continue jumping sequentially. But this is not limited to these time data.
[0068] As shown in Figure 6, there is a notable difference between the front of the temperature control box 20 in this case and the temperature control box 20T in the traditional neck protector: the front 20A of the temperature control box 20 in this case has an additional "unlock" symbol 20A13 and a battery charge / level status symbol 20A14.
[0069] As shown in FIG. 6, the temperature control box 20 includes a box body (shown in black) and a display panel 20A1. In addition, there is a power switch (not shown in the figure) and a Type-C battery charging interface on the side of the box body, and the box body includes a rechargeable lithium battery (not shown in the figure) and a single-chip control circuit board (not shown in the figure, see FIG. 9).
[0070] As shown in Figure 7, the rear 20B of the temperature control box 20 in this case has four magnets 20B1 arranged in a slightly rectangular shape. In this implementation, in order to avoid the two magnets (e.g. carrying positive / negative power) on the rear 20B of the temperature control box 20 accidentally touching the same conductive metal surface and causing a short circuit, a power protection control to prevent short circuit and overload is usually designed into the power control circuit board in the temperature control box 20 during the engineering design.
[0071] As shown in Figure 8, each of the surfaces of these four magnets 20B1 has a concave point 20B11 (shown by a black box), which is called a concave magnet (or magnet). Among them, as shown in Figure 4, the four magnets 10A2 of the neck protector 10A and the four magnets 20B1 of the back surface 20B of the temperature control box 20 correspond and attract each other, forming a convex-concave combination, as shown in Figures 5 and 8. Thus, the four convex magnets 10A2 and the four concave magnets 20B1 attract each other to form an integrated healthcare product consisting of the neck protector 10 and the temperature control box 20.
[0072] Among them, as shown in Figure 3A and 3D, the convex-concave design mainly benefits the stability of the corresponding positions attracting each other to avoid displacement caused by human misoperation that is greater than the mutual attraction. In general implementation, when the symmetric convex-concave operation is performed, a 'click' sound is usually heard. Otherwise, it may not be stable and attracted.
[0073] It is worth noting that these four magnets not only have the function of 'adsorption', but also have the function of 'guiding electrical signals', but when 'displacement' occurs due to 'vibration interference', it will cause instability in 'electrical signal conduction', leading to product 'defects' and 'returns'. Among them, 'integration' is: as shown in Figure 1, the typical traditional general health care products 'neck protector (product body) 10T', 'controller (box) 20T' and 'mobile power supply 30T' are 'integrated' into one, 'reducing' the 'connection wires' usually found between the 'product body 10T, controller 20T and mobile power supply 30T' of traditional general health care products.
[0074] Specifically, the 'integrated' design of healthcare products in this case reduces the 'tangled wire problem' caused by traditional general healthcare products mentioned above. But why does this formed integration need 'four'? Can't it be three or five?
[0075] Please refer to Figure 9 to understand that due to the nature of this single-chip control circuit, the requirements for these 'four' magnets are included for successful integration. Figure 9 is a schematic diagram of the single-chip control circuit; Figure 10 is a schematic diagram of the arrangement of the four magnets at the bottom of the control box of this case; Figure 11 is a schematic diagram of the arrangement of the four magnets in the healthcare product case; Figure 12 is a schematic diagram of the front arrangement of the four magnets; Figure 13 is a schematic diagram of the upside-down arrangement of the four magnets. Below, refer to Figures 10 to 13, where the black dots represent the positions of the magnets.
[0076] As shown in Figure 9, the single-chip MCU built into the control box 10 of this case is the central processing center that constitutes the single-chip control circuit, and processes the program loaded into the MCU using assembly language or C language. The MCU processes the input data according to the logic written in the program, drives the output result data, and displays this output result on the display panel 20A1 through the specified command logic.
[0077] As shown in Figure 9, in this case implementation, the single-chip MCU (microcontroller chip) embedded in the control box 10 is a 32-bit 24-pin package IC (AC 1044A-QSOP24). The MCU processes according to the logic written in the program. Anyone with general technical knowledge in this field can easily select the appropriate development tools and do the layout design based on the specifications and data provided in the pin definition of the datasheet of the single-chip MCU (AC 1044A).
[0078] As shown in Figure 9, the change in heating temperature produced by the heating unit installed in the neck protector 10 is detected by a negative power coefficient thermistor (NTC) and sent as an input (indicated by the thin arrow) to a single chip for processing.
[0079] Then the processing result (indicated by the direction of the thick arrow) is assigned to the appropriate corresponding output by the PWM (Pulse-width modulation) circuit, whose output pulse duty cycle can trigger the NMOS switch to output the corresponding current intensity to control the heating temperature of the heating unit in the neck protector 10 and adjust it to the default 'temperature value' range.
[0080] Among them, the NMOS (N-channel MOSFET) can be turned on (see Figure 10) by applying an appropriate threshold positive voltage to the GS pin. Once on, the heating unit can be powered on and heated.
[0081] The NTC first has a high resistance (e.g. 10KΩ), then the current flowing in causes the temperature of the NTC's thermistor to rise sharply, after which the resistance drops to a lower power dissipation level (e.g. 9KΩ).
[0082] Then, while normal circuit current flows through the NTC, the NTC can maintain a sufficiently high temperature reference, thereby maintaining a low power dissipation level, which is more ideal than a typical fixed-value resistor. In the general basic wiring diagram of an NTC (whose resistance value decreases as the temperature increases), in addition to the ground (negative power supply), the other end is usually connected in series with a resistor and an NTC to form a voltage divider circuit. After the analog to digital converter (ADC) inside this MCU processes and calculates the measurement of the divided voltage Vout, we can know the temperature at which the NTC is located.
[0083] In the actual application circuit of this implementation, resistors are connected in parallel on both sides of the NTC (not drawn in the diagram), the specific values of these two resistors can be selected to adjust Vout to the temperature characteristic curve, that is, to adjust the output voltage of the temperature measurement circuit to a better resolution within a certain temperature range.
[0084] Among them, many elements of NTC, i.e., overall resistance rating (usually measured at room temperature 25°C), how much the resistance value rises at what temperature, or how fast and how much the resistance value rises, and various other information, such as working temperature, resistance tolerance (precision), etc., all such information is clearly stated in the component specifications and temperature coefficient charts of the manufacturer's (e.g. VISHAY) specifications, which can be easily understood and referred to by anyone with general knowledge in this field.
[0085] As stated in this implementation, the NTC and NMOS are appropriately matched according to the specifications provided by the manufacturer and the requirements of the neck protector body. In Figure 9, the display panel (Display) 20A1 controlled by the single-chip MCU is connected to pins 1 to 3 and 21 to 22 of the MCU to light up the 7-segment display, and pins 8 to 10 light up the RGB color ambient light and display temperature / time / battery remaining data.
[0086] The Buzzer, which can emit sound from the touch display panel (Display) 20A1, is connected to pin 24 of the MCU and operates the buzzer switch in PWM mode. The touch signal Touch is connected to pin 11 of the MCU as the input channel for the temperature setting touch key, and to pin 12 of the MCU as the input channel for the time setting touch key.
[0087] The battery power management unit BAT UNIT is a lithium battery, including overcharge / overdischarge and temperature protection for the lithium battery. The NTC detects the temperature change of the heating unit and feedbacks it after processing by the MCU. Those with general knowledge in this field should refer to the pin definition in the AC 1044A datasheet, no further explanation will be given here. Therefore, we will only describe this MCU and related circuits corresponding to the "four" magnets that complete the integration.
[0088] Figure 10 is an illustration of the associated circuitry of the four magnets 20B1 of the control box 20B of Figure 7, and Figure 11 is an illustration of the associated circuitry of the four magnets 10A2 of the neck protector 10 (healthcare product) of Figure 4. Please refer to Figures 9, 10 and 11 together, these 'four' magnets are marked in black circles with associated 'signs' such as 'NTC+', 'NTC -', 'HT+' and 'HT -' in Figures 9, 10 and 11.
[0089] Among them, 'NTC' marks the related NTC thermistor, 'HT' marks the related heating unit Heater, 'NTC+' indicates the end of NTC close to the positive (+) power supply, 'NTC-' indicates the end of NTC close to the negative (-) power supply, 'HT+' indicates the end close to the positive (+) power supply, 'NT-' indicates the end close to the negative (-) power supply. That is: 'NTC+', 'NTC-' represent the two end points of NTC; 'HT+', 'HT-' represent the two end points of heating unit.
[0090] Figure 10 is a further explanatory diagram of the related circuits of the four magnets 20B1 of the control box 20B in Figure 7, where 'HT+' connects to 5v+, indicating that the heating unit Heater is connected to the end closer to the positive power supply; 'NTC+' connects to VDD (a more stable operating voltage of the MCU), indicating that the NTC thermistor is connected to the end closer to the positive power supply, which is connected from pin 23 of the MCU; 'NTC -' connects to the negative end of the battery (ground).
[0091] The end HT- close to the negative power supply of the heating unit passes through the D (drain, drain pole) of the NMOS. When the PWM signal output terminal of the MCU is high, Vgs > Vgs conduction threshold of the NMOS, the NMOS is turned on, that is, the current flows from D to S (Source), and the heating unit starts to heat, see Figure 9. When the PWM signal output terminal of the MCU is low, the conduction threshold Vgs=0, the NMOS is off, and the heating unit does not heat (ON).
[0092] Simply put: the NMOS can be turned on by applying an appropriate threshold positive voltage to the GS pin (in the diagram it comes from the MCU).
[0093] FIG. 11 is a further explanatory diagram of the associated circuitry of the heating unit (Heater) in the healthcare product (neck protector) 10 of FIG. 4, in which a heating unit (Heater) with two power lines is set up in the healthcare product (neck protector) 10 and heats up when the power is turned on.
[0094] In Figure 11, the NTC thermistor is close to the heating unit and is used to detect the temperature change of the heating unit. For example, if the default heating temperature of the temperature control box 20 is '42°C'; then, when the heating unit in the neck protector 10 is turned on, but it is not consumed by the wearer, the current heat of '42°C' produced by the heating unit may gradually accumulate and rise to '42°C+0.5°C...+0.5°C...'; or; when the heating unit in the neck protector 10 is turned on, if it is worn on the neck of a user in an air-conditioned room, the heat of '42°C' may be 'absorbed' by the wearer's neck or 'cooled' by being affected by the convection of cold air in the environment. At this time, '42°C' may gradually accumulate and decrease to '42°C-0.5°C...-0.5°C...' (consumption).
[0095] Such a gradual rise or fall of the continuous temperature change is detected by the NTC thermistor next to the heating unit, and then this temperature change 'information' is sent to the MCU for processing as an AD converted digital signal, and then through the PWM duty cycle 'allocation' appropriate power, the heating temperature of the heating unit in the corresponding neck protector 10 can be adjusted.
[0096] That is: the NTC control circuit detects the temperature change signal of the heating unit, and the PWM control circuit is used to adjust the heating power of the heating unit, so that the protector body in this case has the ability to achieve more accurate temperature measurement 'constant temperature' function. That is, it uses the PWM output voltage (current) conduction (High) and the pulse period time ratio (duty cycle) average magnitude to control the heating unit to heat up more accurate temperature measurement.
[0097] As shown in Figure 11, the NTC thermistor is close to the heating unit and is used to detect the temperature change of the heating unit, where the two terminals of the NTC thermistor and the heating unit do not distinguish between the positive and negative power terminals.
[0098] So, with the rectangular diagonal arrangement of four magnets (10A2 / 20B1) shown in Figures 4 and 7, if the temperature control box 20 wanted to approach the neck protector 10 and generate mutual attraction, would there be a situation where the user would be unable to act because he is holding it 'upside down'? The answer is: no, because this case has a 'bulletproof' design feature.
[0099] FIG. 12 is an explanatory diagram of a 'hypothesis' of a first position setting of the four magnets 10A2 of the neck protector 10 of FIG. 4, and FIG. 13 is an explanatory diagram of a 'hypothesis' of a second position setting of the four magnets 10A2 of the neck protector 10 of FIG. 4. In between, in the upside-down views of FIG. 12 and 13, the two ends of the NTC thermistor and the heating unit clearly show a 'symmetrical' arrangement.
[0100] Therefore, if the temperature control box 20 approaches the neck protector 10 to generate mutual attraction, even if one of the two is held 'upside down', it will not affect the behavior. Obviously, this case achieves 'convenience (prevention of mistakes)' suitable for the human body by 'arranging the four magnets (10A2 / 20B1) in a 'rectangular diagonal (line) arrangement' as shown in Figure 12.
[0101] As shown in Figure 12, 'rectangular diagonal arrangement' is to arrange the two magnets of the heating unit on one pair of diagonals (shown by the double-arrow dashed line) of a 'rectangle'; and arrange the two magnets of the NTC thermistor on the 'other' pair of diagonals (shown by the double-arrow dashed line) of a 'rectangle'. Among them, we can know Figure 10 to 13: 'Magnet HT+' and 'Magnet NTC-' indicate the 'positive' and 'negative' power supply of the battery respectively, see Figure 10.
[0102] From the above implementation, the 'magnetic adsorption' and 'temperature control box' mentioned in this case both 'correspond' to an object called 'healthcare product (neck protector) 10', so the 'magnetic adsorption temperature control box' is defined as a 'use' of the healthcare product.
[0103] From the above implementation, the technical features of the adsorption temperature control box applied to health care products are as follows: (1). 'Integration': the four magnets 10A2 on the surface of the health care product (neck protector) 10 and the four magnets 20B1 on the bottom of the temperature control box 20 correspond and attract each other, so that the application of the product (neck protector) 10 and the temperature control box 20 forms an integration.
[0104] (2). 'Constant temperature', the operation of this 'constant temperature' is: (2-1). Through the 'timely detection' of the heating unit of the 'current heating' set in the healthcare product (neck protector) 10 and the NTC thermistor, the 'change' of the heating temperature inside the neck protector 10 can be synchronously 'sensed'; (2-2). The analog signal of this 'sensing' result is sent to the single chip processor (MCU) through the conduction of two magnets 'NTC+ and NTC-', and then the ADC converter inside the MCU converts it into a digital signal, and the heating temperature of the heating unit in the corresponding neck protector 10 can be adjusted through the PWM pulse width duty cycle 'allocation' appropriate power.
[0105] (2-3). This proper processing can timely 'adjust' the heating temperature inside the neck protector 10 and 'maintain' it within the default temperature 'range', which is defined as the advantage of 'constant temperature'. That is to say: through the cooperation of the above technical features, the neck protector 10 and the temperature control box 20 can achieve the 'integrated' and 'constant temperature' thermal compression function suitable for the human body. Among them, the four magnets are arranged diagonally in a rectangular shape to achieve the 'convenience (prevention of mistakes) / safety' thermal compression function suitable for the human body. [Explanation of symbols]
[0106] 10 Neck protector 10A front 10T Neck Protector 20 Temperature Control Box 10A1 Protector Body 10A2 Magnet 10A3 Stretchable Strip 20A front 20A1 Display panel (touch panel) 20A11 Fire letter symbol 20A12 Clock symbol 20A13 Unlock symbol 20B Back 20B1 Magnet 221 Wire 30T Mobile Power Supply 231 Wire
Claims
1. The corresponding health care product includes four magnets, the temperature control box has a display screen on its surface, has a single-chip control circuit inside, and has four magnets arranged diagonally in a rectangle at the bottom, which are integrated by combining with the four magnets included in the corresponding health care product through the four magnets, thereby achieving the functions of constant temperature hot compression and convenient and safe health care product.
2. The magnetic adsorption temperature control box for health care products as claimed in claim 1, wherein a power switch and a Type-C battery charging interface are further provided on the side of the temperature control box.
3. The magnetic adsorption temperature control box for health care products as claimed in claim 1 , wherein the display screen further displays the parameter data of temperature and time and the charging status warning symbol in a touchable manner.
4. The magnetic adsorption temperature control box for health care products as claimed in claim 1 , wherein the single-chip control circuit includes a PWM control unit, an NTC thermistor, an NMOS switch, and a battery management unit.
5. The magnetic adsorption temperature control box for health care products as claimed in claim 1 or 4, wherein the health care products include an NTC thermistor and a heating unit.
6. The magnetic adsorption temperature control box for health care products as claimed in claim 5, wherein the NTC thermistor detects the heating temperature of the heating unit.
7. The magnetic adsorption temperature control box for health care products as claimed in claim 5, wherein the four magnets arranged at the bottom of the temperature control box are electrically connected by the four magnets included in the corresponding health care products.
8. The magnetic adsorption temperature control box for health care products as claimed in claim 5, wherein the four magnets set at the bottom of the temperature control box include two magnets which can make the NTC thermistor conductive and connect to the NMOS switch of the heating unit.
9. The magnetic adsorption temperature control box for health care products as claimed in claim 8, wherein the two magnets of the heating unit are arranged diagonally, and the two magnets of the NTC thermistor are arranged diagonally on another side.
10. The magnetic adsorption temperature control box for health care products as claimed in claim 4, wherein the battery management unit controls the overcharge and overdischarge temperature of the rechargeable battery.