Heating insole

Abstract

The utility model relates to the technical field of heating insoles, in particular to a heating insole. A heating insole comprises an insole surface layer and an insole bottom layer which are arranged in an upper-lower two-layer structure, and the insole bottom layer is arranged below the insole surface layer. The heating structure is arranged between the insole surface layer and the insole bottom layer and corresponds to the half sole area of the human body; the anti-puncture layer is arranged between the insole surface layer and the insole bottom layer and corresponds to the heel area of the human body. The heating insole has the advantages that the anti-puncture layer is arranged below the power source structure, the power source structure is protected through the anti-puncture layer, the phenomenon that the power source structure is damaged due to the fact that the sole is punctured by sharp objects is effectively avoided, the probability of occurrence of safety accidents such as electric leakage and explosion is reduced, and the personal safety of a wearer is guaranteed; the detachable design of the power supply structure enables a user to conveniently take out the power supply structure for energy charging treatment, and the usability, practicability and convenience of the heating insole are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating insoles, in particular to a heating insole. Background Art

[0002] As a product that has the function of keeping warm and improving blood microcirculation, heating insoles are usually heated by electric heating sheets.

[0003] Since the heating insole is located inside the shoe, the shoe is easily punctured by sharp objects on the ground when walking on the ground, thereby damaging the power supply module of the heating insole and even causing serious safety problems such as leakage or explosion, threatening the personal safety of the wearer. Utility Model Content

[0004] The utility model aims at the technical problems existing in the prior art and provides a heating insole to solve the problem that the power supply module of the heating insole is easily punctured, causing leakage or explosion, etc., threatening the personal safety of the wearer.

[0005] The utility model solves the above technical problems with the following technical solutions: a heating insole, comprising:

[0006] A cushioning surface layer and a cushioning bottom layer are arranged in an upper and lower two-layer structure, wherein the cushioning bottom layer is arranged below the cushioning surface layer;

[0007] A heating structure, which is disposed between the pad surface layer and the pad bottom layer and corresponds to the forefoot area of ​​the human body;

[0008] The puncture-proof layer is arranged between the pad surface layer and the pad bottom layer and corresponds to the heel area of ​​the human body;

[0009] The power supply structure is detachable between the pad surface layer and the pad bottom layer and is located above the puncture-proof layer, and is used to provide electrical energy to the heating structure so that the heating structure generates heat.

[0010] The beneficial effects of the utility model are:

[0011] 1) The heating insole is provided with an anti-puncture layer under the power structure, which protects the power structure and effectively prevents sharp objects from piercing the sole and damaging the power structure, reduces the probability of safety accidents such as leakage and explosion, and ensures the personal safety of the wearer. The detachable design of the power structure allows the user to easily take out the power structure for charging, thereby improving the convenience of using the heating insole.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the pad surface layer and the pad bottom layer are fixedly connected in an area corresponding to the forefoot area of ​​a human body.

[0014] The beneficial effect of adopting the above further solution is that, through the fixed connection between the pad surface layer and the pad bottom layer, the structure of the entire insole is made more stable, the possibility of displacement or misalignment is reduced, and a longer service life is provided.

[0015] Furthermore, the thickness of the insole layer gradually increases from the forefoot area to the heel area corresponding to the human body, and the insole layer is respectively provided with a first accommodating groove and a second accommodating groove in the forefoot area and the heel area corresponding to the human body, and a through hole is provided on the side wall of the second accommodating groove of the insole layer, and the through hole is connected with the second accommodating groove.

[0016] The beneficial effect of adopting the above further solution is that, at the same time, the thickness of the bottom layer gradually increases from the forefoot area to the heel area, which not only provides a larger installation space for the power structure, but also increases the height of the wearer, increasing comfort and self-confidence.

[0017] Furthermore, the heating structure includes a heating sheet, a wiring harness, and an FPC board. The heating sheet is placed in the first receiving groove, the FPC board is placed in the second receiving groove, the wiring harness is electrically connected between the heating sheet and the FPC board, and the pad surface layer has a plurality of heat dissipation holes corresponding to the forefoot area of ​​the human body.

[0018] The beneficial effect of adopting the above further scheme is that the heating sheet generates heat in the receiving groove 1, and a plurality of heat dissipation holes are opened in the forefoot area of ​​the human foot of the pad surface layer, so that the heat emitted by the heating sheet can be effectively transferred to the pad surface layer, and the setting of the heat dissipation holes improves the heat conduction efficiency, so that the heating function is more evenly distributed on the surface of the pad surface layer, and the heat is generated more quickly, thereby improving the heating effect of the entire insole and improving the comfort of the wearer.

[0019] Furthermore, the power supply structure includes a power supply module, a first electrical conductor, and a second electrical conductor. The first electrical conductor is arranged on a contact of the power supply module, and the second electrical conductor is arranged on a contact of the FPC board.

[0020] Furthermore, the power supply module includes a battery, a shell, a switch button, and an interface. The battery is fixed in the shell, and an opening is provided on one side of the shell. The switch button and the interface are respectively arranged on the battery and are both located on a side close to the shell opening. A gear position indicator light is provided on the switch button.

[0021] Furthermore, the electrical conductor 1 and the electrical conductor 2 are respectively composed of two conductive magnets, wherein the two magnets correspond to the positive and negative contacts of the battery and the positive and negative contacts of the FPC board respectively, and the two magnets on the battery penetrate the shell and are abutted against the two magnets on the FPC board, and a conductive medium is also provided between the two magnets on the battery and the two magnets on the FPC board to improve the electrical conductivity between the two magnets on the battery and the two magnets on the FPC board.

[0022] The beneficial effect of adopting the above further scheme is that efficient connection and current conduction between the power structure and the FPC board are achieved. By installing a conductive magnet on the battery and holding it against the magnet on the FPC board, the magnetic effect between them is utilized to achieve rapid and accurate positioning of the contacts between the battery and the FPC board, thereby enabling rapid matching of the conduction current, effectively improving the efficiency of current conduction, and ensuring that the battery can quickly transmit current to the heating sheet, thereby achieving rapid startup and stable operation of the heating function.

[0023] In addition, the battery and FPC board are firmly fixed together by magnetic attraction, ensuring good and stable contact, preventing accidental power failure or current transmission interruption during walking or exercise. Magnetic attraction conduction also simplifies the assembly and disassembly process, allowing users to easily install and replace the power structure, improving the ease of use and maintainability of the heating insole.

[0024] At the same time, the presence of the conductive medium can improve the conductivity between the contact points, thereby reducing the contact resistance, improving the current transmission efficiency, ensuring that the electrical connection between the battery and the FPC board is more stable and reliable, and helping to reduce energy loss and heat generation.

[0025] Furthermore, the anti-puncture layer is set as a steel sheet, and one side of the steel sheet is provided with two avoidance holes corresponding to the electrical conduction holes on the FPC board.

[0026] The beneficial effect of adopting the above-mentioned further scheme is that the use of steel sheets can effectively prevent the soles from being punctured by sharp external objects, protecting the wearer's feet from injury. At the same time, the avoidance holes opened correspond to the electrical conduction holes on the FPC board, which can ensure that the electrical conduction process will not be interfered by the steel sheets, thereby ensuring a stable connection and conduction efficiency between the power supply structure and the heating function.

[0027] Furthermore, a fastening assembly for limiting the shell on the padding layer is provided between the shell and the rear heel area of ​​the padding layer, and the fastening assembly includes a male Velcro and a female Velcro, the male Velcro is fixed on the shell, and the female Velcro is fixed on the side of the rear heel area of ​​the padding layer facing the padding layer.

[0028] The beneficial effect of adopting the above further scheme is that the use of Velcro makes the power supply module relatively easy to disassemble and replace, which is very convenient for charging, repair, cleaning or replacement of parts. Without the need for additional tools or complicated operations, the user can easily separate the shell from the pad surface layer, perform the required operations, and then fix them together again.

[0029] Furthermore, it also includes a remote control wirelessly connected to the power supply module or the FPC board, and the remote control is respectively provided with a matching button, a gear adjustment button and a display screen for displaying the gear, and the gear adjustment button includes a heating button and a cooling button.

[0030] The beneficial effect of adopting the above further scheme is that the user can match and dock with the power supply module or FPC board through the matching button on the remote control, and then remotely control the heating state of the heating plate without taking off the shoes for manual operation. The remote control function allows the user to easily adjust the heating state of the insole without changing the posture or comfort, thereby improving the convenience and comfort of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0032] Figure 2 It is an exploded schematic diagram of the overall structure of the utility model;

[0033] Figure 3 It is a side cross-sectional view of the fastening assembly of the utility model;

[0034] Figure 4 It is a top view of the remote controller of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 10, pad surface layer; 101, heat dissipation hole; 20, pad bottom layer; 201, receiving slot 1; 202, receiving slot 2; 203, perforation; 30, heating structure; 301, heating sheet; 302, wiring harness; 303, FPC board; 40, anti-puncture layer; 401, avoidance hole; 50, power supply structure; 510, power supply module; 511, battery; 511a, circuit board, 511b, antenna, 511c, top Needle, 512, shell; 513, switch button; 514, interface; 515, gear indicator light; 520, electrical conduction one; 530, electrical conduction two; 540, conductive medium; 60, fastening component; 601, male Velcro; 602, female Velcro; 70, remote control; 701, matching button; 702, gear adjustment button; 702a, heating button; 702b, cooling button; 703, display screen. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] As a product that has the function of keeping warm and improving blood microcirculation, heating insoles are usually heated by electric heating sheets.

[0039] Since the heating insole is located inside the shoe, the shoe is easily punctured by sharp objects on the ground when walking on the ground, thereby damaging the power supply module of the heating insole and even causing serious safety problems such as leakage or explosion, threatening the personal safety of the wearer. The utility model proposes a heating insole to solve the above problem.

[0040] The utility model provides the following preferred embodiments

[0041] like Figure 1-Figure 4 As shown, a heating insole comprises:

[0042] A cushioning layer 10 and a cushioning layer 20 are arranged in an upper and lower two-layer structure, wherein the cushioning layer 20 is arranged below the cushioning layer 10;

[0043] The heating structure 30 is disposed between the pad surface layer 10 and the pad bottom layer 20 and corresponds to the forefoot area of ​​the human body;

[0044] The puncture-proof layer 40 is disposed between the pad surface layer 10 and the pad bottom layer 20 and corresponds to the heel area of ​​the human body;

[0045] A power supply structure 50, which is detachable between the mat surface layer 10 and the mat bottom layer 20 and is located above the puncture-proof layer 40, and is used to provide electrical energy to the heating structure 30 so that the heating structure 30 generates heat;

[0046] The heating insole is provided with an anti-puncture layer 40 below the power structure 50, and the power structure 50 is protected by this layer, which effectively prevents sharp objects from piercing the sole and damaging the power structure 50, reduces the probability of safety accidents such as leakage and explosion, and ensures the personal safety of the wearer. The detachable design of the power structure 50 allows the user to easily take out the power structure 50 for charging, thereby improving the convenience of using the heating insole.

[0047] In this embodiment, Figure 1-Figure 4 As shown, the pad surface layer 10 and the pad bottom layer 20 are fixedly connected between the areas corresponding to the forefoot of the human body. The fixed connection between the pad surface layer 10 and the pad bottom layer 20 makes the structure of the entire insole more stable, reduces the possibility of displacement or misalignment, and thus provides a longer service life.

[0048] In this embodiment, Figure 1-Figure 4 As shown, the thickness of the pad layer 20 gradually increases from the forefoot area to the heel area corresponding to the human body, and the pad layer 20 is respectively provided with a first accommodating groove 201 and a second accommodating groove 202 in the forefoot area and the heel area corresponding to the human body. At the same time, the thickness of the pad layer 20 gradually increases from the forefoot area to the heel area, which not only provides a larger installation space for the power structure 50, but also increases the height of the wearer, increases comfort and self-confidence, and a through hole 203 is opened on the side wall of the second accommodating groove 202 of the pad layer 20, and the through hole 203 is connected with the second accommodating groove 202.

[0049] In this embodiment, Figure 1-Figure 4 As shown, the heating structure 30 includes a heating sheet 301, a wiring harness 302, and an FPC board 303. The heating sheet 301 is placed in the receiving slot 1 201, and the FPC board 303 is placed in the receiving slot 2 202. The wiring harness 302 is electrically connected between the heating sheet 301 and the FPC board 303 (the outer surface of the wiring harness 302 can be wrapped with an elastic wire skin to prevent the wiring harness from breaking during walking). The pad surface layer 10 is provided with a plurality of heat dissipation holes 101 corresponding to the forefoot area of ​​the human body. The heating sheet 301 generates heat in the receiving slot 1 201, and a plurality of heat dissipation holes 101 are provided in the forefoot area of ​​the pad surface layer 10. The heat emitted by the heating sheet 301 can be effectively transferred to the pad surface layer 10. The provision of the heat dissipation holes 101 improves the heat conduction efficiency, so that the heating function is more evenly distributed on the surface of the pad surface layer 10, and the heat is generated more quickly, thereby improving the heating effect of the entire insole and improving the comfort of the wearer.

[0050] In this embodiment, Figure 1-Figure 4 As shown, the power supply structure 50 includes a power supply module 510, an electric conductor 1 520, and an electric conductor 2 530. The electric conductor 1 520 is arranged on the contact of the power supply module 510, and the electric conductor 2 530 is arranged on the contact of the FPC board 303. The power supply module 510 includes a battery 511, a shell 512, a switch button 513, and an interface 514. The battery 511 is fixed in the shell 512, and an opening is opened on one side of the shell 512. The electric conductor 1 520 and the electric conductor 2 530 are each composed of two conductive magnets, wherein the two magnets correspond to the positive and negative contacts of the battery 511 and the positive and negative contacts of the FPC board 303, respectively, and the two magnets on the battery 511 penetrate the shell 512 and abut against the two magnets of the FPC board 303, and the magnets can be neodymium magnets;

[0051] In addition, an electrically conductive medium 540 is provided between the two magnetized objects on the battery 511 and the two magnetized objects on the FPC board 303 to improve the electrical conductivity between the two magnetized objects on the battery 511 and the two magnetized objects on the FPC board 303. The electrically conductive medium 540 includes but is not limited to conductive cotton, carbon material, etc.;

[0052] The above structure realizes efficient connection and current conduction between the power supply structure 50 and the FPC board 303. By installing a conductive magnetized object on the storage battery 511 and abutting against the magnetized object on the FPC board 303, the magnetic effect between them is utilized to achieve rapid and accurate positioning of the contacts between the storage battery 511 and the FPC board 303, so that the conduction current can be quickly matched, effectively improving the efficiency of current conduction, ensuring that the storage battery 511 can quickly transmit the current to the heating sheet 301, and thus realizing rapid startup and stable operation of the heating function.

[0053] In addition, the battery 511 and the FPC board 303 are firmly fixed together by magnetic attraction, ensuring good and stable contact, preventing accidental power failure or current transmission interruption during walking or exercise, and magnetic attraction conduction also simplifies the assembly and disassembly process, allowing users to easily install and replace the power structure 50, improving the usability and maintainability of the heating insole;

[0054] At the same time, the presence of the conductive medium 540 can improve the conductivity between the contact points, thereby reducing the contact resistance, improving the current transmission efficiency, ensuring that the electrical connection between the battery 511 and the FPC board 303 is more stable and reliable, and helping to reduce energy loss and heat generation.

[0055] In this embodiment, Figure 1-Figure 4 As shown, the switch button 513 and the interface 514 are respectively arranged on the battery 511 and are both located on a side close to the opening of the shell 512. In addition, a circuit board 511a is arranged on the battery 511, so that the switch button 513 and the interface 514 are electrically connected to the circuit board 511a of the battery 511, thereby controlling the charging and discharging of the battery 511. In addition, an antenna 511b is arranged on the circuit board 511a of the battery 511, and the antenna 511b is connected to a pin 511c, so that the pin 511c penetrates the shell 512 outside the battery 511, which can enhance the transmission signal of the circuit board on the battery 511.

[0056] A gear indicator light 515 is provided on the switch button 513, wherein the interface 514 can adopt a USB Type-C interface 514, and the gear indicator light 515 corresponds to the heating gear of the heating sheet 301, wherein when the heating sheet 301 is in the first gear of heating, the indicator light displays a blue light, when the heating sheet 301 is in the second gear of heating, the indicator light displays a green light, and when the heating sheet 301 is in the third gear of heating, the indicator light displays a red light.

[0057] In this embodiment, Figure 1-Figure 4 As shown, the anti-puncture layer 40 is set as a steel sheet, and two avoidance holes 401 corresponding to the electrical conductor 530 on the FPC board 303 are opened on one side of the steel sheet. The use of the steel sheet can effectively prevent the sole from being punctured by sharp external objects and protect the wearer's feet from being injured. At the same time, the opened avoidance holes 401 correspond to the electrical conductor 530 on the FPC board 303, which can ensure that the electrical conduction process will not be interfered by the steel sheet, thereby ensuring a stable connection and conduction efficiency between the power supply structure 50 and the heating function.

[0058] In this embodiment, Figure 1-Figure 4 As shown, a fastening assembly 60 for limiting the shell 512 on the pad surface layer 10 is provided between the shell 512 and the rear heel area of ​​the pad surface layer 10, and the fastening assembly 60 includes a male Velcro 601 and a female Velcro 602. The male Velcro 601 is fixed on the shell 512, and the female Velcro 602 is fixed on the side of the rear heel area of ​​the pad surface layer 10 facing the pad layer 20. The use of Velcro makes the power supply module relatively easy to disassemble and replace, which is very convenient for charging, maintenance, cleaning or replacement of parts. Without the need for additional tools or complicated operations, the user can easily separate the shell 512 from the pad surface layer 10, perform the required operations, and then fix them together again.

[0059] In this embodiment, Figure 1-Figure 4 As shown, it also includes a remote controller 70 that is wirelessly connected to the power supply module 510 or the FPC board 303, and the remote controller 70 is respectively provided with a matching button 701, a gear adjustment button 702 and a display screen 703 for displaying the gear, and the gear adjustment button 702 includes a heating button 702a and a cooling button 702b. The user can match and dock with the battery 511 of the power supply module 510 through the matching button 701 on the remote controller 70 (the matching method may include but is not limited to Bluetooth matching connection, 433m wireless frequency connection, etc.), and then remotely control the heating sheet 301 to heat or turn off the heating without taking off the shoes for manual operation. The remote control function allows the user to easily adjust the heating state of the insole without changing the posture or comfort, thereby improving the convenience and comfort of use;

[0060] In addition, since the remote control 70 is also provided with a gear adjustment button 702 and a display screen 703 for displaying the gear, the temperature values ​​of different gears are displayed on the display screen 703, for example: the first gear Celsius temperature is 40℃~47℃ or the Fahrenheit temperature is 102℉~116℉, the second gear Celsius temperature is 48℃~55℃ or the Fahrenheit temperature is 118℉~132℉ and the third gear Celsius temperature is 56℃~65℃ or the Fahrenheit temperature is 134℉~152℉, and the heating button 702a and the cooling button 702b of the gear adjustment button 702 can switch the heating plate to different gears for heating.

[0061] The specific working process of the utility model is as follows:

[0062] (1) Using the switch button 513 on the power supply module 510 to generate heat

[0063] First, long press the switch button 513 through the opening of the pad layer 20 for 1-3 seconds until the gear indicator light 515 on the switch button 513 turns red, and the current inside the battery 511 is transmitted to the rubidium magnet on the FPC board 303 through the rubidium magnet, and the rubidium magnet on the FPC board 303 transmits the current to the wiring harness 302, and the wiring harness 302 transmits the current to the heating plate 301 for heating. At this time, the heating plate 301 is in the third heating state.

[0064] (2) Second level heating

[0065] Press the switch button 513 again, and the gear indicator light 515 switches to green.

[0066] (3) First gear heating

[0067] Press the switch button 513 again, and the gear indicator light 515 switches to blue.

[0068] (4) The remote controller 70 controls the heating state of the heating sheet 301

[0069] Press the switch button 513 twice in succession until the gear indicator light 515 on the switch button 513 flashes, then press the matching button 701 on the remote control 70 once to make the remote control 70 and the battery 511 of the power supply module 510 perform 433m wireless frequency matching connection, until a gear temperature value appears on the display screen 703 on the remote control 70, for example, the third gear temperature is displayed as 65°C. At this moment, the remote control 70 has successfully completed the 433m wireless frequency connection with the power supply module 510.

[0070] (5) Use remote control 70 to adjust the gear position

[0071] After the remote controller 70 is successfully matched, if the gear temperature displayed on the display screen 703 is 65°C, it indicates that the heating sheet 301 is in the third gear heating state, and the gear indicator light 515 on the switch button 513 also changes to a red light accordingly. At this moment, by pressing the cooling button 702b once, the gear temperature display on the display screen 70 drops to 55°C. By pressing the cooling button 702b again, the gear temperature display on the display screen drops to 45°C, and the heating sheet 301 can generate heat corresponding to the gear temperature displayed on the display screen 703;

[0072] Similarly, if the gear temperature displayed on the display screen 703 is 45°C at this time, it indicates that the heating sheet 301 is already in the first gear heating state, and the gear indicator light 515 on the switch button 513 also changes to a blue light accordingly. At this moment, by pressing the heating button 702a once, the gear temperature display on the display screen 703 rises to 55°C, and by pressing the heating button 702a again, the gear temperature display on the display screen 703 rises to 65°C, and the heating sheet 301 can generate heat corresponding to the gear temperature displayed on the display screen 703.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heating insole, characterized in that: include: A cushion surface layer and a cushion bottom layer are arranged in an upper and lower two-layer structure, wherein the cushion bottom layer is arranged below the cushion surface layer; A heating structure, which is disposed between the pad surface layer and the pad bottom layer and corresponds to the forefoot area of ​​the human body; The puncture-proof layer is arranged between the pad surface layer and the pad bottom layer and corresponds to the heel area of ​​the human body; The power supply structure is detachable between the pad surface layer and the pad bottom layer and is located above the puncture-proof layer, and is used to provide electrical energy to the heating structure so that the heating structure generates heat.

2. A heating insole according to claim 1, characterized in that: The pad surface layer and the pad bottom layer are fixedly connected between the areas corresponding to the forefoot area of ​​the human body.

3. A heating insole according to claim 1 or 2, characterized in that: The thickness of the pad layer gradually increases from the forefoot area to the heel area corresponding to the human body, and the pad layer is respectively provided with a first accommodating groove and a second accommodating groove in the forefoot area and the heel area corresponding to the human body, and a through hole is provided on the side wall of the second accommodating groove of the pad layer, and the through hole is connected with the second accommodating groove.

4. A heating insole according to claim 3, characterized in that: The heating structure includes a heating sheet, a wiring harness, and an FPC board. The heating sheet is placed in a first receiving groove, and the FPC board is placed in a second receiving groove. The wiring harness is electrically connected between the heating sheet and the FPC board. The pad surface layer is provided with a plurality of heat dissipation holes corresponding to the forefoot area of ​​a human body.

5. A heating insole according to claim 4, characterized in that: The power supply structure includes a power supply module, a first electric conductor, and a second electric conductor. The first electric conductor is arranged on a contact of the power supply module, and the second electric conductor is arranged on a contact of the FPC board.

6. A heating insole according to claim 5, characterized in that: The power supply module includes a battery, a shell, a switch button, and an interface. The battery is fixed in the shell, and an opening is provided on one side of the shell. The switch button and the interface are respectively arranged on the battery and are both located on a side close to the shell opening. A gear indicator light is provided on the switch button.

7. The heating insole according to claim 6, characterized in that: The electrical conductor 1 and the electrical conductor 2 respectively include two conductive magnets, wherein the two magnets correspond to the positive and negative contacts of the battery and the positive and negative contacts of the FPC board respectively, and the two magnets on the battery penetrate the shell and are abutted against the two magnets on the FPC board, and a conductive medium is also provided between the two magnets on the battery and the two magnets on the FPC board to improve the electrical conductivity between the two magnets on the battery and the two magnets on the FPC board.

8. The heating insole according to claim 4, characterized in that: The anti-puncture layer is a steel sheet, and one side of the steel sheet is provided with two avoidance holes corresponding to the electrical conduction holes on the FPC board.

9. The heating insole according to claim 6, characterized in that: A fastening assembly for limiting the shell on the pad surface layer is provided between the shell and the rear heel area of ​​the pad surface layer, and the fastening assembly includes a male Velcro and a female Velcro. The male Velcro is fixed on the shell, and the female Velcro is fixed on the side of the rear heel area of ​​the pad surface layer facing the pad bottom layer.

10. The heating insole according to claim 5, characterized in that: It also includes a remote control that is wirelessly connected to the power supply module or the FPC board, and the remote control is respectively provided with a matching button, a gear adjustment button and a display screen for displaying the gear, and the gear adjustment button includes a heating button and a cooling button.

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