Multi-channel temperature-controlled heating device for wearable heating product, and wearable heating product

Abstract

Disclosed in the present invention are a multi-channel temperature-controlled heating device for a wearable heating product, and a wearable heating product. The multi-channel temperature-controlled heating device comprises a heating portion and a control portion, wherein the heating portion comprises a plurality of heating pieces, which can be respectively arranged in different areas of the wearable heating product; and the control portion comprises a main control unit and a plurality of temperature control switches connected to the main control unit, wherein the main control unit is connected to each of the plurality of heating pieces, and each temperature control switch independently controls the corresponding heating piece. In the present invention, independent and convenient control over multiple channels of heating pieces is facilitated, and the operation is convenient and simple, thereby avoiding the defect of different parts being unable to undergo temperature adjustment control.

Description

Multi-path temperature control heating device for wearing heat generating product and wearing heat generating product TECHNICAL FIELD

[0001] The present application relates to the technical field of heat generating clothing, and particularly relates to a multi-path temperature control heating device for wearing heat generating product and a wearing heat generating product. BACKGROUND

[0002] In cold winter, it is very important to keep warm when going out for work, leisure, fishing, watching a ball game and the like, but it is inconvenient to wear thick clothes. Therefore, light and thin wearing heat generating products such as clothes and trousers are gradually sought after in the market. The wearing heat generating products such as thermal clothing are generally provided with multiple heat generating sheets corresponding to different regions of the human body such as the chest and abdomen, the back and the like, so as to increase the heat generating area and improve the thermal effect. TECHNICAL PROBLEM

[0003] Since the feeling of temperature is different for each person, the same temperature may feel hot for some people and just right for others; or the sensitivity of different parts of the same person to temperature is also different, for example, the same temperature may feel just right for the chest and abdomen, but a little hot for the back, so the temperature of the heat generating sheet of the wearing heat generating product needs to be adjustable to meet the needs of different human bodies.

[0004] However, the temperature control of the heat generating sheet of the existing wearing heat generating product generally adopts two ways, one is constant temperature, the temperature of the heat generating sheet of the constant temperature mode is not adjustable, and the temperature of all heat generating sheets is the same, so it cannot meet the different feeling needs of different people to temperature. The other is a manual adjustment mode, the temperature of the heat generating sheet can be adjusted by the manual adjustment mode, but in the prior art, the manual adjustment mode is uniformly adjusted for all heat generating sheets in the wearing heat generating product, that is, if the user manually adjusts to 50 degrees, the temperature of all heat generating sheets in the wearing heat generating product is 50 degrees; if the user manually adjusts to 40 degrees, the temperature of all heat generating sheets in the wearing heat generating product is 40 degrees, so it cannot meet the different needs of different parts of the same human body to temperature.

[0005] Therefore, the prior art needs to be improved. TECHNICAL SCHEME

[0006] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a multi-path temperature control heating device for wearing heat generating product, which aims to facilitate independent and convenient control of multiple heat generating sheets.

[0007] To achieve the above purpose, in a first aspect, the present application provides a multi-path temperature control heating device for wearing heat generating product, comprising a heat generating part and a control part, wherein:

[0008] The heating part includes a plurality of heating pieces, which can be respectively arranged in different areas of the wearable heating product.

[0009] The control part includes a master control unit and a plurality of temperature control switches connected to the master control unit. The master control unit is connected to the plurality of heating pieces, and each temperature control switch independently controls one heating piece.

[0010] In some examples, the control part includes a controller, which can be arranged on the wearable heating product. The controller includes a housing, the master control unit arranged in the housing, and the plurality of temperature control switches arranged on the housing.

[0011] In some examples, the controller further includes a plurality of gear state LED lights arranged on the housing. The plurality of gear state LED lights are connected to the master control unit. Each temperature control switch has a different temperature gear to adjust the temperature of one heating piece. Each gear state LED light is associated with one temperature control switch. Each gear state LED light can display different colors to correspond to different temperature gears of one temperature control switch.

[0012] In some examples, the control part further includes a plurality of temperature sensors. Each temperature sensor is in close contact with one heating piece. Each temperature sensor collects temperature information of the heating piece and sends it to the master control unit.

[0013] In some examples, the master control unit includes a master control chip, a driving circuit connected to the master control chip, and a temperature signal processing circuit connected to the master control chip.

[0014] The driving circuit is connected to the plurality of heating pieces, and the temperature signal processing circuit is connected to the plurality of temperature sensors.

[0015] In some examples, the heating part includes at least a first heating piece, a second heating piece, and a third heating piece.

[0016] The master control chip is provided with a first PWM output end, a second PWM output end, a third PWM output end, and a current sampling end.

[0017] The driving circuit includes:

[0018] A first current limiting resistor, a second current limiting resistor, and a third current limiting resistor.

[0019] A first bias resistor, a second bias resistor, and a third bias resistor.

[0020] A first MOS transistor, a second MOS transistor, a third MOS transistor, and a sampling resistor.

[0021] The first end of the first current-limiting resistor is connected to the first PWM output end, the second end of the first current-limiting resistor is connected to the gate of the first MOS tube, the first end of the first biasing resistor is connected to the gate of the first MOS tube, the second end of the first biasing resistor is grounded, the drain of the first MOS tube is connected to a first heat sink, and the source of the first MOS tube is connected to the first end of the sampling resistor.

[0022] The first end of the second current-limiting resistor is connected to the second PWM output end, the second end of the second current-limiting resistor is connected to the gate of the second MOS tube, the first end of the second biasing resistor is connected to the gate of the second MOS tube, the second end of the second biasing resistor is grounded, the drain of the second MOS tube is connected to a second heat sink, and the source of the second MOS tube is connected to the first end of the sampling resistor.

[0023] The first end of the third current-limiting resistor is connected to the third PWM output end, the second end of the third current-limiting resistor is connected to the gate of the third MOS tube, the first end of the third biasing resistor is connected to the gate of the third MOS tube, the second end of the third biasing resistor is grounded, the drain of the third MOS tube is connected to a third heat sink, and the source of the third MOS tube is connected to the first end of the sampling resistor.

[0024] The second end of the sampling resistor is grounded, and the first end of the sampling resistor is also connected to the current sampling end.

[0025] In some examples, a first filter resistor is further connected in series between the first end of the sampling resistor and the current sampling end, and a first filter capacitor is further connected in parallel between the first end of the sampling resistor and the current sampling end.

[0026] In some examples, the master control chip is further provided with a plurality of temperature detection ends, and the temperature signal processing circuit includes a plurality of temperature signal processing units, each temperature signal processing unit being connected to one of the temperature detection ends and one of the temperature sensors, wherein one of the temperature signal processing units includes a fourth current-limiting resistor, a second filter resistor, and a second filter capacitor.

[0027] The first end of the fourth current-limiting resistor is connected to a power supply end, the second end of the fourth current-limiting resistor is connected to the first end of a temperature sensor, the second end of the temperature sensor is grounded, the first end of the temperature sensor is also connected to the first end of the second filter resistor, the second end of the second filter resistor is connected to the temperature detection end, the second end of the second filter resistor is also connected to the first end of the second filter capacitor, and the second end of the second filter capacitor is grounded.

[0028] In some examples, the master control unit further comprises a Bluetooth module connected to the master control chip or integrated on the master control chip, and the Bluetooth module enables the smart phone to connect to the multi-channel temperature control heating device through an APP to control the on-off and temperature adjustment of the plurality of heating pieces.

[0029] In some examples, the master control unit further comprises a voice module connected to the master control chip, and the voice module collects voice instructions to control the on-off and temperature adjustment of the plurality of heating pieces.

[0030] In some examples, the heating piece comprises a heating body, a heat insulation pad layer, a heat preservation cover layer and a heat reflection layer arranged in sequence, the heating body is connected to the master control unit, and the heating body, the heat insulation pad layer, the heat preservation cover layer and the heat reflection layer are stitched together.

[0031] In some examples, the heating body adopts a heating wire or a flexible and bendable heating film.

[0032] In some examples, the heating film is a PI heating film.

[0033] In some examples, the heat reflection layer is a metal reflection film.

[0034] In some examples, the multi-channel temperature control heating device further comprises a power supply part, the power supply part comprises a battery, the battery is provided with a charging and discharging interface, and the control part further comprises a power supply plug and a power detection circuit.

[0035] The power supply plug is connected to the master control unit, the power supply plug is pluggably connected to the charging and discharging interface, and the power detection circuit is connected to the power supply plug and the master control unit.

[0036] In the second aspect, the application provides a wearable heating product, wherein the wearable heating product is provided with the multi-channel temperature control heating device for the wearable heating product.

[0037] In some examples, the wearable heating product comprises clothes, trousers, hats, belts and scarves.

[0038] In some examples, when the wearable heating product is clothes, the clothes are provided with at least three heating areas, the multi-channel temperature control heating device is provided with at least six heating pieces and three temperature control switches, one heating area is provided with two heating pieces, and one temperature control switch controls two heating pieces at the same time.

[0039] It should be understood that, within the scope of the application, each of the technical features described above and in the following (such as the embodiments) can be combined with each other to form new or preferred technical solutions. Due to the limited space, they will not be listed one by one here. Advantages

[0040] Advantages of the present application:

[0041] 1. The temperature of the heating sheet can be adjusted to meet the different temperature needs of the human body.

[0042] 2. The temperature of the multiple heating sheets can be independently adjusted to meet the different temperature needs of different areas of the human body.

[0043] 3. The heating sheet is designed with multiple layers and uses different functional materials to improve the warmth-keeping effect, reduce heat loss, and improve heat utilization rate. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the structures shown in the drawings.

[0045] Figure 1 is a schematic diagram of a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0046] Figure 2 is a block diagram of a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0047] Figure 3 is a schematic diagram of a wearable heating product according to an embodiment of the present application.

[0048] Figure 4 is a schematic diagram of the back of the structure of Figure 3.

[0049] Figure 5 is a schematic diagram of the structure of a controller in a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0050] Figure 6 is a schematic diagram of the structure of a heating sheet in a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0051] Figure 7 is an exploded schematic diagram of the structure of Figure 6.

[0052] Figure 8 is a schematic diagram of the structure of a controller in a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0053] Figure 9 is a block diagram of a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0054] Figure 10 is a block diagram of a multi-channel temperature control heating device for a wearable heating product according to an embodiment of the present application.

[0055] Explanation of reference signs:

[0056] 100 - multi-channel temperature control heating device, 10 - heating part, 11 - heating sheet, 111 - first heating sheet, 112 - second heating sheet, 113 - third heating sheet, 101 - heating body, 102 - heat insulation pad layer, 103 - heat preservation cover layer, 104 - heat reflection layer, 105 - wire, 20 - control part, 21 - main control unit, 211 - main control chip, 212 - drive circuit, 213 - temperature signal processing circuit, 2130 - temperature signal processing unit, 214 - Bluetooth module, 215 - voice module, 22 - temperature control switch, 23 - controller, 231 - shell, 24 - gear state LED lamp, 25 - temperature sensor, 26 - power supply plug, 27 - power detection circuit, 30 - power supply part, 31 - battery, 32 - charge-discharge interface, 41 - first PWM output end, 42 - second PWM output end, 43 - third PWM output end, 44 - current sampling end, 51 - first current limiting resistor, 52 - second current limiting resistor, 53 - third current limiting resistor, 61 - first bias resistor, 62 - second bias resistor, 63 - third bias resistor, 71 - first MOS tube, 72 - second MOS tube, 73 - third MOS tube, 74 - sampling resistor, 81 - first filter resistor, 82 - first filter capacitor, 83 - second filter resistor, 84 - second filter capacitor, 90 - power supply end, 200 - wearable heating product, 201 - heating area. Best mode of the present application

[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0058] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directionality indications also change accordingly.

[0059] In the present application, unless otherwise explicitly specified and limited, the terms "electrically connected", "fixed", and the like should be understood in a broad sense, for example, "electrically connected" can be fixed electrically connected, or detachable electrically connected, or integrated; can be mechanically electrically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In addition, in the present application, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features.

[0061] The specific implementation is as follows, example one:

[0062] Please refer to FIG. 1 to FIG. 10, the present embodiment proposes a kind of multi-path temperature control heating device 100 for wearing heat product, including heating part 10, control part 20, further including power supply part 30, power supply part 30 connects control part 20, control part 20 connects heating part 10, power supply part 30 is the power supply for control part 20 and heating part 10, and control part 20 is used to control the opening and closing of heating part 10 and the temperature of heating part 10.Power supply part 30 can be external power supply or battery, external power supply input can adopt DC5V power supply input.Control part 20 is provided with control chip and control circuit, and heating part 10 uses the component of heating wire, heating sheet and the like to convert electric energy into heat energy.

[0063] Specifically, the heating part 10 of the present application includes a plurality of heating sheets 11, which can be respectively arranged in different areas of the heat-wearing product 200. As shown in FIG. 3 and FIG. 4, as an embodiment, the heat-wearing product 200 related to the present application is a heating garment, which is divided into three different heating areas of chest, abdomen and back. Each heating area is separately provided with a heating sheet 11. As shown in the figure, two first heating sheets 111 (i.e. K1 in the figure) are arranged on the chest of the heating garment, two second heating sheets 112 (i.e. K2 in the figure) are arranged on the abdomen of the heating garment, and two third heating sheets 113 (i.e. K3 in the figure) are arranged on the back of the heating garment. In this way, the chest, abdomen and back parts of the heating garment can emit heat through the respective heating sheets 11 to warm the human body. It can be understood that in other embodiments, the heating garment can be divided into more heating areas, each area is provided with a heating sheet 11, and different numbers of heating sheets 11, such as 1, 2, 3, etc., can also be arranged in each heating area of the heating garment.

[0064] As shown in Figure 2, the control part 20 of the present application comprises a master control unit 21 and a plurality of temperature control switches 22 connected to the master control unit 21, the master control unit 21 is connected to the plurality of heat-generating sheets 11 respectively, and each temperature control switch 22 independently controls one heat-generating sheet 11. That is, each temperature control switch 22 corresponds to control one heat-generating sheet 11, the temperature control switch 22 sends a temperature control instruction to the master control unit 21, and then the master control unit 21 identifies which temperature control switch 22 sends the instruction according to the input interface, and then adjusts the temperature of the corresponding heat-generating sheet 11.

[0065] As shown in Figure 2, the present embodiment sets heat-generating sheets K1, K2, K3, and sets three temperature control switches: temperature control switch 1, temperature control switch 2, and temperature control switch 3. Among them, the temperature control switch 1 corresponds to control the opening and closing of the heat-generating sheet K1 and control the temperature of the heat-generating sheet K1; the temperature control switch 2 corresponds to control the opening and closing of the heat-generating sheet K2 and control the temperature of the heat-generating sheet K2; the temperature control switch 3 corresponds to control the opening and closing of the heat-generating sheet K3 and control the temperature of the heat-generating sheet K3. The master control unit 21 scans the input interface of the temperature control switch instruction, such as scanning that the temperature control switch 2 inputs a control instruction, then the master control unit 21 adjusts the heat-generating sheet K2 according to the instruction. In this way, the plurality of heat-generating sheets K1, K2, K3 of the present application can be individually controlled through the respective corresponding temperature control switches 22. As shown in Figure 3 and Figure 4, if the user feels that the temperature of the heat-generating sheet K3 on the back is high, the user can individually adjust the temperature of the heat-generating sheet K3 through the temperature control switch 3, and the temperatures of the other heat-generating sheets K1, K2 remain unchanged; if the user feels that the temperature of the heat-generating sheet K2 on the abdomen is low, the user can individually adjust the temperature of the heat-generating sheet K2 through the temperature control switch 2, and the temperatures of the other heat-generating sheets K1, K3 remain unchanged. In this way, the user can independently adjust the temperature according to the temperature demand of different parts of the body, each output can be set to different temperatures, and the gear can be freely adjusted. The demand and sensitivity of different parts of the human body for temperature are different, and the product of the present application is more in line with the actual use and meets the needs of different temperature groups.

[0066] Preferably, as shown in Figure 2, the power supply part 30 of the multi-channel temperature-controlled heating device 100 comprises a battery 31, and a charging and discharging interface 32 is arranged on the battery 31, which can be a charging and discharging separated interface or a charging and discharging integrated interface. The control part 20 further comprises a power supply plug 26 and a power detection circuit 27; the power supply plug 26 is connected with the main control unit 21, the power supply plug 26 is plug-connectable with the charging and discharging interface 32, and the power detection circuit 27 is connected with the power supply plug 26 and the main control unit 21. The battery 31 receives external power input through the charging and discharging interface 32, and in the embodiment, the external power input adopts 5V direct current input, and the main control unit 21 is powered after the charging and discharging interface 32 is connected with the power supply plug 26. As shown in Figure 3, the battery 31 can be charged by connecting an external power source through a USB charging line 40, and the battery 31 is preferably a lithium battery. When the multi-channel temperature-controlled heating device 100 is used, the power supply plug 26 is plug-connected with the charging and discharging interface 32 of the battery 31. When the power supply plug 26 is connected with the charging and discharging interface 32 of the battery 31, the power detection circuit 27 is also connected with the battery 31 and detects the power of the battery 31, and the power detection circuit 27 sends the power signal of the battery 31 to the main control unit 21, and the main control unit 21 selectively sends an alarm signal according to the amount of the power signal, such as when the battery power is low by 20%, the user is reminded by light flickering or voice that the power is insufficient and needs to be charged in time. In this way, when in the wild, the power alarm information can make the user return to the room in time for charging and avoid freezing the body due to the loss of the warming effect of the heating product after the battery runs out.

[0067] As shown in Figure 5, the control part 20 of the multi-channel temperature-controlled heating device 100 of the present application comprises a controller 23, which can be arranged on the wearable heating product 200, as shown in Figure 3, the controller 23 is installed on the lower right side of the front side of the clothes, and the controller 23 is exposed on the surface of the clothes. The controller 23 can be sewn and fixed on the wearable heating product 200, or detachably installed on the wearable heating product 200 through buckles and the like. The controller 23 comprises a shell 231, the main control unit 21 received in the shell 231, and the plurality of temperature control switches 22 arranged on the shell 231.

[0068] As shown in Figure 5, in the embodiment, the controller 23 has a polygonal shell 231, the main control unit 21 is arranged in the shell 231, and three temperature control switches 22 are arranged on the upper surface of the shell 231. The shell 231, the main control unit 21 and the three temperature control switches 22 are integrated to form the controller 23.

[0069] Each temperature control switch 22 is provided with a human body and different distribution position heating sheet identification, so as to distinguish which area of the heating sheet 11 is controlled by each temperature control switch 22, for example, a temperature control switch 22 through the identification on it reflects that it controls the heating sheet 11 of the chest or abdomen or back.

[0070] The plurality of temperature control switches 22 of the embodiment are integrated on a controller 23, facilitating centralized control of the plurality of heating sheets 11 and convenient adjustment. Meanwhile, the main control unit 21 is also integrated in the controller 23, so that when installed, only the heating sheets 11 in different areas of the clothes need to be connected through wires, and the power supply has been connected, which is convenient for installation, and facilitates batch production of the controller 23 and reduces costs.

[0071] Further, as shown in FIG. 2 and FIG. 5, the controller 23 further comprises a plurality of gear state LED lamps 24 arranged on the shell 231, the plurality of gear state LED lamps 24 are connected with the main control unit 21, each temperature control switch 22 has different temperature gears to adjust the heating sheet 11 to have different temperatures, each gear state LED lamp 24 is associated with a temperature control switch 22, and each gear state LED lamp 24 can display different colors to correspond to different temperature gears of the temperature control switch 22. The temperature gear can be a certain temperature value or a certain temperature range value.

[0072] As shown in FIG. 5, on the controller 23, a gear state LED lamp 24 is arranged near each temperature control switch 22, if each temperature control switch 22 and the gear state LED lamp 24 near it are combined into a group of lamp and switch combination, there are three groups of lamp and switch combination on the controller 23 in the embodiment, and the lamp and switch combination of each group are associated with each other, that is, when the user adjusts the gears of the temperature control switch 22 to make the heating sheet 11 controlled by it have different set temperatures, the gear state LED lamp 24 of the group displays different colors, in the embodiment, in each group of lamp and switch combination, the lamp surrounds the edge of the switch in a bent line shape.

[0073] Specifically, in the embodiment, each temperature control switch 22 has four temperature ranges to control the corresponding heating sheet 11 to have four different temperature ranges, i.e., 55-60, 49-53, 43-47, and 37-40 degrees, so that the corresponding heating sheet 11 reaches the four temperature ranges, respectively. Meanwhile, in the embodiment, each temperature control switch 22 has four different colors, such as red, yellow, green, and blue, to correspond to the four temperature ranges, respectively. When adjusting the temperature range, each temperature control switch 22 can control the controller 23 to be turned on / off by the time length of the button or the order of the buttons in a unit time, such as the battery 31 being turned on and connected to the wearable heating product 200 through the power supply plug 26, the controller 23 being automatically turned on, the corresponding temperature being 55-60 degrees, the temperature control switch 22 being pressed again, the time length being 0.1 s, and the temperature range being adjusted to 49-53 degrees; the temperature control switch 22 being pressed again, the time length being 0.1 s, and the temperature range being adjusted to 43-47 degrees; the temperature control switch 22 being pressed again, the time length being 0.1 s, and the temperature range being adjusted to 37-40 degrees; the temperature control switch 22 being pressed again, the time length being 0.1 s, and the temperature range being adjusted to 55-60 degrees again, and so on. The controller 23 being turned off by pressing the temperature control switch 22 for about 2 s.

[0074] As an embodiment, as shown in FIG. 5, the upper temperature control switch 22 in FIG. 5 corresponds to the chest heating sheet 11, the lower temperature control switch 22 corresponds to the back heating sheet 11, and the left temperature control switch 22 corresponds to the abdominal heating sheet 11. When the user presses the upper temperature control switch 22 in FIG. 5, the temperature of the heating sheet 11 corresponding to the chest position of the human body on the wearable heating product 200 is adjusted, and the range state LED lamp 24 in the upper part of FIG. 5 displays the corresponding range color. In this way, the controller 23 of the present application can conveniently control the temperature of each heating sheet 11 and directly display the temperature range corresponding to the temperature of each heating sheet 11, thereby improving the user experience.

[0075] The control unit 20 of the present application further includes a plurality of temperature sensors 25, each of which is tightly attached to a heating sheet 11. Each temperature sensor 25 collects the temperature information of the heating sheet 11 and sends it to the main control unit 21. As shown in FIG. 2, three temperature sensors 25 are provided in the embodiment, wherein the temperature sensor 1 is tightly attached to the heating sheet K1 to collect the temperature of the heating sheet K1; the temperature sensor 2 is tightly attached to the heating sheet K2 to collect the temperature of the heating sheet K2; and the temperature sensor 3 is tightly attached to the heating sheet K3 to collect the temperature of the heating sheet K3. The main control unit 21 adjusts the heating power of the corresponding heating sheet 11 in time according to the temperature feedback of the temperature sensor 25, so that the temperature of the heating sheet 11 reaches the preset temperature.

[0076] Specifically, as shown in FIG. 2, the master control unit 21 of the embodiment comprises a master control chip 211, a driving circuit 212 connected with the master control chip 211, and a temperature signal processing circuit 213 connected with the master control chip 211; the driving circuit 212 is connected with the plurality of heat sheets 11 respectively, and the temperature signal processing circuit 213 is connected with the plurality of temperature sensors 25 respectively.

[0077] The master control chip 211 controls the whole circuit, the master control chip 211 outputs PWM signals to control the heating temperature of each heat sheet 11, and the driving circuit 212 controls the on-off of the heat sheet 11 according to the PWM signals output by the master control chip 211 to drive the heat sheet 11. The temperature signal processing circuit 213 filters and processes the signals input by the temperature sensor 25. As shown in FIG. 6, preferably, the master control chip 211 of the embodiment is of BK3432 type.

[0078] Specifically, as shown in FIG. 7, the heat generating part 10 of the embodiment comprises at least a first heat sheet 111, a second heat sheet 112, and a third heat sheet 113.

[0079] The master control chip 211 is provided with a first PWM output end 41, a second PWM output end 42, a third PWM output end 43, and a current sampling end 44.

[0080] The driving circuit 212 comprises a first current limiting resistor 51, a second current limiting resistor 52, a third current limiting resistor 53, a first bias resistor 61, a second bias resistor 62, a third bias resistor 63, a first MOS tube 71, a second MOS tube 72, a third MOS tube 73, and a sampling resistor 74.

[0081] The first end 511 of the first current limiting resistor 51 is connected with the first PWM output end 41, the second end 512 of the first current limiting resistor 51 is connected with the gate G of the first MOS tube 71, the first end 611 of the first bias resistor 61 is connected with the gate G of the first MOS tube 71, the second end 612 of the first bias resistor 61 is grounded, the drain D of the first MOS tube 71 is connected with the first heat sheet 111, and the source S of the first MOS tube 71 is connected with the first end 741 of the sampling resistor 74.

[0082] The first end 521 of the second current limiting resistor 52 is connected with the second PWM output end 42, the second end 522 of the second current limiting resistor 52 is connected with the gate G of the second MOS tube 72, the first end 621 of the second bias resistor 62 is connected with the gate G of the second MOS tube 72, the second end 622 of the second bias resistor 62 is grounded, the drain D of the second MOS tube 72 is connected with the second heat sheet 112, and the source S of the second MOS tube 72 is connected with the first end 741 of the sampling resistor 74.

[0083] The first end 531 of the third current-limiting resistor 53 is connected to the third PWM output end 43, the second end 532 of the third current-limiting resistor 53 is connected to the gate G of the third MOS tube 73, the first end 631 of the third bias resistor 63 is connected to the gate G of the third MOS tube 73, the second end 632 of the third bias resistor 63 is grounded, the drain D of the third MOS tube 73 is connected to the third heat sheet 113, and the source S of the third MOS tube 73 is connected to the first end 741 of the sampling resistor 74.

[0084] The second end 742 of the sampling resistor 74 is grounded, and the first end 741 of the sampling resistor 74 is also connected to the current sampling end 44.

[0085] In the driving circuit 212, the first current-limiting resistor 51, the second current-limiting resistor 52 and the third current-limiting resistor 53 limit the G pole current of the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73 respectively, and the first bias resistor 61, the second bias resistor 62 and the third bias resistor 63 provide stable bias voltage for the G pole of the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73 respectively, so that the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73 work stably. The on-off frequency of the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73 is controlled by the PWM signals output by the first PWM output end 41, the second PWM output end 42 and the third PWM output end 43 of the master control chip 211 respectively, so that the output power of the D pole of the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73 can be controlled, and the heating temperature of the first heat sheet 111, the second heat sheet 112 and the third heat sheet 112 can be controlled respectively. At the same time, the master control chip 211 collects the current signal of the sampling resistor 74 through the current sampling end 44 to control the output power of the D pole of the first MOS tube 71, the second MOS tube 72 and the third MOS tube 73.

[0086] Preferably, as shown in FIG. 7, the first end 741 of the sampling resistor 74 and the current sampling end 44 are further connected in series with a first filter resistor 81, and the first end 741 of the sampling resistor 74 and the current sampling end 44 are further connected in parallel with a first filter capacitor 82. The first filter resistor 81 and the first filter capacitor 82 constitute a filter circuit to filter the sampling signal of the sampling resistor 74. Specifically, the first end 811 of the first filter resistor 81 is connected to the current sampling end 44, and the second end 812 of the first filter resistor 81 is connected to the first end 741 of the sampling resistor 74; the first end 821 of the first filter capacitor 82 is connected to the current sampling end 44, and the second end 822 of the first filter capacitor 82 is grounded.

[0087] The main control chip 211 is further provided with a plurality of temperature detection terminals 45, and the temperature signal processing circuit 213 comprises a plurality of temperature signal processing units 2130, as shown in FIG. 8. Each temperature signal processing unit 2130 is connected with one temperature detection terminal 45 and one temperature sensor 25. One temperature signal processing unit 2130 comprises a fourth current limiting resistor 54, a second filter resistor 83 and a second filter capacitor 84.

[0088] The first end 541 of the fourth current limiting resistor 54 is connected with a power supply terminal 90. In the embodiment, the power supply terminal 90 is supplied with a direct current VCC3.3V. The second end 542 of the fourth current limiting resistor 54 is connected with the first end 251 of one temperature sensor 25. The second end 252 of the temperature sensor 25 is grounded. The first end 251 of the temperature sensor 25 is further connected with the first end 831 of the second filter resistor 83. The second end 832 of the second filter resistor 83 is connected with the temperature detection terminal 45. The second end 832 of the second filter resistor 83 is further connected with the first end 841 of the second filter capacitor 84. The second end 842 of the second filter capacitor 84 is grounded.

[0089] The second filter resistor 83 and the second filter capacitor 84 form a filter circuit. The temperature signal sampled by the temperature sensor 251 is filtered and then input to the temperature detection terminal 45 of the main control chip 211 for processing, so as to ensure the accuracy of the temperature signal measurement. The circuit of the temperature signal processing unit 2130 corresponding to other temperature sensors 251 for collecting the heat sheet 11 is basically the same as that shown in FIG. 8, which will not be listed one by one.

[0090] After the multi-channel temperature control heating device 100 is started, if no manual temperature adjustment is performed, each heat sheet enters a constant temperature control mode, such as a temperature range of 55-60 degrees. The temperature sensor 25 placed on the heat sheet 11 feeds back the obtained temperature parameter to the temperature signal processing circuit 213. The temperature signal processing circuit 213 processes the temperature signal and then outputs to the main control chip 211. When the temperature reaches the set temperature range, the main control chip 211 controls the heat sheet 11 to slowly heat or stop heating to slowly cool down. When the temperature is lower than the set temperature range, the main control chip 211 controls the heat sheet 11 to start heating, so as to maintain a comfortable temperature for the human body.

[0091] The constant temperature control mode of the multi-path temperature control heating device 100 of the embodiment is to keep the temperature within a preset temperature range. Compared with the constant temperature mode in the market which is constant at a certain temperature point, the constant temperature control mode of the constant range of the embodiment can make the temperature within a comfortable temperature range that most people can adapt to, and solve the defect that different adjustments are needed due to the difference between the temperature and the individual feeling. For example, when the constant temperature changes in the range of 55-60 degrees, the user does not need to intentionally adjust the temperature to 60 degrees, nor does the user need to intentionally adjust the temperature to 55 degrees. The temperature automatically changes in the range of 55-60 degrees to adapt to the different body temperature feeling needs of the human body.

[0092] Specifically, as shown in FIGS. 9 and 10, the heating sheet 11 of the embodiment includes a heating body 101, a heat insulation pad layer 102, a heat preservation cover layer 103, and a heat reflection layer 104 arranged in sequence. The heating body 101 is connected to the main control unit 21. The heating body 101, the heat insulation pad layer 102, the heat preservation cover layer 103, and the heat reflection layer 104 are stitched together. The heating body 101 is connected to the driving circuit 212 of the main control unit 21 through a wire 105. The heating body 101 is fixed to the side of the wearable heating product 200 facing the human body to be in contact with the human body. The heat reflection layer 104 is fixed to the side of the wearable heating product 200 away from the human body to collect and dissipate heat.

[0093] In the embodiment, the heating body 101 adopts a heating wire or a flexible and bendable heating film. Preferably, when the heating body 101 adopts a flexible and bendable heating film, the heating film is a PI (polyimide film) heating film. The PI heating film has good heating effect and is convenient to stitch and fix on clothes.

[0094] Preferably, in the embodiment, the heat reflection layer 104 is a metal reflection film. The metal reflection film is a composite material composed of one or more layers of metal film, which is usually aluminum, chromium-plated or stainless steel, can reflect heat radiation, and is convenient to produce.

[0095] In the embodiment, the heating body 101, the heat insulation pad layer 102, the heat preservation cover layer 103, and the heat reflection layer 104 are generally fixed by fireproof sewing. The heating sheet can adopt a heating wire as the heating body 6. The heat insulation pad layer 102 adopts a heat insulation material, which can effectively prevent heat from being transmitted outward, and at the same time, the heat insulation pad layer 102 is used to fix the heating body 101. The heat preservation cover layer 103 can adopt materials such as heat preservation cotton to prevent heat from being dissipated outward and play a heat preservation role, and at the same time, the heat preservation cover layer 103 can fix the heat insulation pad layer 102. The heat reflection layer 104 can adopt aluminum foil material to reflect heat back and further prevent heat from flowing out. Because the heating sheet 11 of the product is provided with the heat reflection layer 104, the temperature of the warm-keeping area can be increased by about 2 degrees Celsius under the same heat generation condition, so that the heat generated by the heating sheet is fully utilized.

[0096] In this embodiment, the heating sheet 11 as a whole can be directly stitched and fixed on the wearable heating product 200, or can be connected and fixed with the wearable heating product 200 through a detachable way such as a magic tape.

[0097] In the embodiment two, as shown in FIG. 11, the multi-channel temperature control heating device 100 for the wearable heating product is different from the embodiment one in the shape of the controller 23 and the setting of the lamp. In the embodiment two, the shell 231 of the controller 23 adopts a circular shape. It can be understood that in other embodiments, the shell 231 of the controller 23 can also adopt other shapes. In the embodiment two, each temperature control switch 22 corresponds to one gear state LED lamp 24 which is divided into two sections.

[0098] Since the other technical solutions in the embodiment two are the same as those in the embodiment one, the embodiment two has the functions and effects of the multi-channel temperature control heating device 100 for the wearable heating product in the embodiment one, and details are not repeated.

[0099] In the embodiment three, as shown in FIG. 12, the multi-channel temperature control heating device 100 for the wearable heating product is different from the embodiment one in that the main control unit 21 of the embodiment three further comprises a Bluetooth module 214 connected with the main control chip 211 or integrated on the main control chip 211. The Bluetooth module 214 enables the smart phone to control the switches and temperature adjustment of the plurality of heating sheets 11 through Bluetooth. The Bluetooth module 214 enables the smart phone to connect the multi-channel temperature control heating device 100 through an APP to control the switches and temperature adjustment of the plurality of heating sheets 11.

[0100] The Bluetooth module 214 of the embodiment three can be separately arranged with the main control chip 211, or the Bluetooth module 214 of the embodiment three is directly integrated on the main control chip 211, such as a main control chip BK3432 with a Bluetooth module.

[0101] The multi-channel temperature control heating device 100 of the embodiment three can manually adjust the temperature, and can also use the APP specially designed on the smart phone to wirelessly control the temperature of the heating sheet 11 through Bluetooth connection, so as to realize the diversity of temperature adjustment control mode and adapt to the application scene of modern intelligent life.

[0102] In the embodiment four, as shown in Fig. 13, the multi-channel temperature control heating device 100 for wearing heating products is different from the embodiment one in that the master control unit 21 of the embodiment four further comprises a voice module 215 connected with the master control chip 211, and the voice module 215 collects voice instructions to control the on-off and temperature adjustment of the plurality of heating pieces 11. The voice module 215 is used to collect voice instructions of the user and convert the voice instructions into digital instructions which are sent to the master control unit 21 for identification, and the master control unit 21 controls the temperature of the heating pieces 11 according to the input voice instructions. The multi-channel temperature control heating device 100 of the embodiment four can manually adjust the temperature and use voice to control the temperature of the heating pieces 11, so as to realize the diversity of temperature adjustment control modes.

[0103] It can be understood that in other embodiments, the multi-channel temperature control heating device 100 for wearing heating products can also adjust the temperature of the heating pieces 11 in other ways, such as Internet of Things remote control.

[0104] The multi-channel temperature control heating device 100 for wearing heating products can realize manual temperature adjustment, Bluetooth APP temperature adjustment plus manual temperature adjustment, or voice control temperature adjustment plus manual temperature adjustment.

[0105] The multi-channel temperature control heating device 100 has manual temperature adjustment and constant temperature setting, is externally provided with a lithium battery and a USB line, and can be used for a long time after being fully charged once. Before charging, the charger is plugged into the AC outlet at home, and the battery is plugged into the charger plug for connection. The temperature control switch has different temperature gears. The temperature can be manually adjusted, the control part is controlled by a special program and a chip, has three temperature control channels, the master control unit of the control part receives a signal each time the temperature control switch key on the clothes is pressed, compares and processes the signal to inform the driving circuit, and outputs in proportion to achieve different temperature gears. Or set constant temperature, and a temperature sensor is placed on the heating piece to combine with a temperature signal processing circuit to make the temperature of the heating piece reach the set temperature to keep the human body comfortable.

[0106] The application further provides a wearing heating product 200 provided with the multi-channel temperature control heating device 100 for wearing heating products.

[0107] In the application, the wearing heating product 200 includes clothes, trousers, hats, belts, scarves, and can also include other products such as heating pads.

[0108] Specifically, as shown in FIG. 3, FIG. 4, the wearing heating product 200 of the embodiment is a garment. The garment is provided with at least three heating areas 201, and the multi-channel temperature control heating device 100 is provided with at least six heating pieces 11 and three temperature control switches 22. One heating area 201 is provided with two heating pieces 11, and one temperature control switch 22 controls two heating pieces 11 at the same time. That is, each heating area 201 of the heat preservation heating garment of the embodiment is provided with two heating pieces 11 to improve the heating and warm keeping effect of each heating area.

[0109] The above description is only an example for clearly illustrating the present application, and does not limit the patent scope of the present application. It is impossible to enumerate all the embodiments here, and any equivalent structural transformation or direct / indirect application in other related technical fields based on the concept of the present application and using the content of the technical solutions of the present application is included in the patent protection scope of the present application.

Claims

1. A multi-path temperature control heating device for wearing a heating product, comprising a heating part and a control part, characterized in that: the heating part comprises a plurality of heating pieces, which can be respectively arranged in different areas of the wearing heating product; the control part comprises a master control unit and a plurality of temperature control switches connected with the master control unit, the master control unit is connected with the plurality of heating pieces respectively, and each temperature control switch independently controls one heating piece; the control part comprises a controller, which can be arranged on the wearing heating product, the controller comprises a shell, the master control unit accommodated in the shell, and the plurality of temperature control switches arranged on the shell; the controller further comprises a plurality of gear state LED lamps arranged on the shell, the plurality of gear state LED lamps are connected with the master control unit, each temperature control switch has different temperature gears to adjust different temperatures of one heating piece, each gear state LED lamp is associated with one temperature control switch, and each gear state LED lamp can display different colors to correspond to different temperature gears of one temperature control switch; the control part further comprises a plurality of temperature sensors, each temperature sensor is close to one heating piece respectively, and each temperature sensor collects temperature information of the heating piece and sends the temperature information to the master control unit; the master control unit comprises a master control chip, a driving circuit connected with the master control chip, and a temperature signal processing circuit connected with the master control chip; the driving circuit is connected with the plurality of heating pieces respectively, and the temperature signal processing circuit is connected with the plurality of temperature sensors respectively; the heating part at least comprises a first heating piece, a second heating piece and a third heating piece; the master control chip is provided with a first PWM output end, a second PWM output end, a third PWM output end and a current sampling end; the driving circuit comprises: a first current limiting resistor, a second current limiting resistor and a third current limiting resistor; a first bias resistor, a second bias resistor and a third bias resistor; a first MOS tube, a second MOS tube, a third MOS tube and a sampling resistor; a first end of the first current limiting resistor is connected with the first PWM output end, a second end of the first current limiting resistor is connected with a gate of the first MOS tube, a first end of the first bias resistor is connected with the gate of the first MOS tube, a second end of the first bias resistor is grounded, a drain of the first MOS tube is connected with the first heating piece, and a source of the first MOS tube is connected with a first end of the sampling resistor; a first end of the second current limiting resistor is connected with the second PWM output end, a second end of the second current limiting resistor is connected with a gate of the second MOS tube, a first end of the second bias resistor is connected with the gate of the second MOS tube, a second end of the second bias resistor is grounded, a drain of the second MOS tube is connected with the second heating piece, and a source of the second MOS tube is connected with the first end of the sampling resistor. ​ ​ 2. The multi-path temperature control heating device for wearing a heat generating product according to claim 1, wherein ​ 3. The multi-path temperature control heating device for wearing a heat generating product according to claim 2, wherein ​ 4. The multi-path temperature control heating device for wearing a heat generating product according to claim 1, wherein ​ 5. The multi-path temperature control heating device for wearing a heat generating product according to claim 4, wherein ​ ​ 6. The multi-path temperature control heating device for wearing a heat generating product according to claim 5, wherein ​ ​ ​ ​ ​ ​ ​ ​ The first end of the third current-limiting resistor is connected to the third PWM output end, the second end of the third current-limiting resistor is connected to the gate of the third MOS tube, the first end of the third biasing resistor is connected to the gate of the third MOS tube, the second end of the third biasing resistor is grounded, the drain of the third MOS tube is connected to the third heat sink, and the source of the third MOS tube is connected to the first end of the sampling resistor. The second end of the sampling resistor is grounded, and the first end of the sampling resistor is also connected to the current sampling end.

7. The multi-path temperature control heating device for wearing a heat generating product according to claim 6, wherein The first filter resistor is further connected in series between the first end of the sampling resistor and the current sampling end, and the first filter capacitor is further connected in parallel between the first end of the sampling resistor and the current sampling end.

8. The multi-path temperature control heating device for wearing heat generating products according to claim 5, wherein The master control chip is further provided with a plurality of temperature detection ends, the temperature signal processing circuit comprises a plurality of temperature signal processing units, each temperature signal processing unit is connected to one temperature detection end and one temperature sensor, one temperature signal processing unit comprises a fourth current-limiting resistor, a second filter resistor, and a second filter capacitor. The first end of the fourth current-limiting resistor is connected to a power supply end, the second end of the fourth current-limiting resistor is connected to the first end of a temperature sensor, the second end of the temperature sensor is grounded, the first end of the temperature sensor is also connected to the first end of the second filter resistor, the second end of the second filter resistor is connected to the temperature detection end, the second end of the second filter resistor is also connected to the first end of the second filter capacitor, and the second end of the second filter capacitor is grounded.

9. The multi-path temperature control heating device for wearing heat generating products according to claim 1, wherein, The master control unit further comprises a Bluetooth module connected to the master control chip or integrated on the master control chip, and the Bluetooth module enables a smart phone to connect the multi-channel temperature control heating device through an APP to control the switching and temperature adjustment of the plurality of heat sinks.

10. The multi-path temperature control heating device for wearing a heat generating product according to claim 1, wherein The master control unit further comprises a voice module connected to the master control chip, and the voice module collects voice instructions to control the switching and temperature adjustment of the plurality of heat sinks.

11. The multi-path temperature-controlled heating device for wearing a heat- generating product according to claim 1, wherein The heat sink comprises a heating body, a heat insulation pad layer, a heat preservation cover layer, and a heat reflection layer arranged in layers in sequence, the heating body is connected to the master control unit, and the heating body, the heat insulation pad layer, the heat preservation cover layer, and the heat reflection layer are sewn together.

12. The multi-path temperature control heating device for wearing a heat generating product according to claim 11, wherein The heating body adopts a heating wire or a flexible and bendable heating film.

13. The multi-path temperature control heating device for wearing a heat generating product according to claim 12, wherein The heating film is a PI heating film.

14. The multi-path temperature control heating device for wearing a heat generating product according to claim 11, wherein The heat reflection layer is a metal reflection film.

15. The multi-path temperature-controlled heating device for wearing heat-generating products according to claim 1, wherein, The multi-channel temperature control heating device further comprises a power supply part, the power supply part comprises a battery, a charge-discharge interface is arranged on the battery, the control part further comprises a power supply plug and a power detection circuit. The power supply plug is connected to the master control unit, the power supply plug is detachably connected to the charge-discharge interface, and the power detection circuit is connected to the power supply plug and the master control unit.

16. A wearable heat generating product, characterized by, The wearable heating product is provided with the multi-channel temperature control heating device for the wearable heating product.

17. The heat-generating product of claim 16, wherein The wearable heating product comprises clothes, trousers, hats, belts, and scarves.

18. The heat-generating product of claim 17, wherein, When the heat-emitting product is a garment, the garment is provided with at least three heating areas, the multi-path temperature control heating device is provided with at least six heating pieces and three temperature control switches, one heating area is provided with two heating pieces, and one temperature control switch controls two heating pieces simultaneously.

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