Electric heating product and fixing structure and fixing method of electric heating wire
By using a fixing structure of binding strips/tapes and stitching, the problems of easy knotting of electric heating wires and automated wiring are solved, achieving firm fixing and efficient production of electric heating products.
Patent Information
- Application Number
- CN202411202013.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2026-02-27
AI Technical Summary
The existing electric heating wire fixing structure in electric heating products is prone to tangling and cannot achieve automated wiring, resulting in high return rates and low production efficiency.
The heating wire is wrapped inside the binding strip/tape and sewing thread to fix it to the surface or substrate of the electric heating product, forming a complete channel and achieving full-length fixation of the heating wire.
It achieves a firm fixation of the electric heating wire, avoids tangling, improves production efficiency, and realizes automated wiring, reducing processing difficulty and return rate.
Smart Images
Figure CN121586112A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of electric heating products, and particularly relates to an electric heating product, a fixing structure of an electric heating wire and a fixing method. BACKGROUND
[0002] Traditional electric heating products such as electric heating upper cover blankets and electric heating underlay blankets have entered people's lives for many years. As winter heating products, they have the advantages of being clean, convenient, temperature-adjustable and environmentally friendly, and have been widely used. With the improvement of people's living standards, higher requirements for winter heating are put forward, and therefore more new electric heating products have been put into the market, such as electric heating products that can be directly worn for heating, electric cover blankets and electric shawls. Since they are directly worn, they are convenient and warm, and are popular in cold places such as Europe and the United States.
[0003] Since electric heating products are changing towards wearable products, the requirements for electric heating products have also changed significantly. Not only are they required to be light, comfortable and warm, but they are also required to have higher safety performance, cleanability and wearability.
[0004] Taking electric heating shawls and electric heating cover blankets as examples, since they are in direct contact with the body and need to be washed frequently, the water washing performance of the electric heating products is required to be high, and they should not deform or come off after being washed. Since they are directly worn on the body, they are no longer treated as carefully as the electric heating underlay blankets in the past, and are very random, such as being frequently moved, folded, rubbed and balled. Therefore, the electric heating wire of the electric heating shawl and the electric heating cover blanket is prone to knotting, and after knotting, safety accidents are particularly prone to occur. In order to prevent accidents caused by this, the industry usually sets up a safety control circuit to ensure the safety of the use of the electric heating product. When the electric heating wire is knotted, the safety control circuit starts to cut off the power supply, so that the electric heating product is scrapped and withdrawn from use. The producer is responsible for the loss within the warranty period, and the consumer can return the product at any time. At present, since the electric heating wire is fixed by the following fixing structure, the electric heating wire is prone to knotting after being worn for a period of time or after being washed, and therefore the producers and operators bear a high return rate and high production and service costs. Fig. 1-2As shown, the fixing structure of the prior art electric heating wire is as follows: two substrates 10 are provided, and a plurality of groups of parallel quilting lines 15 are arranged on the two substrates according to the wiring path of the electric heating wire, each group of quilting lines includes two parallel straight quilting lines, and a channel for the electric heating wire to pass through is formed between each group of quilting lines. The electric heating wire 11 meanders through the channels 17 and is fixed between the two substrates by intercalation, that is, the electric heating wire alternately passes through each channel 17 in a serpentine manner and is distributed between the two substrates. In order to fix the part of the electric heating wire located at the opening position at both ends, an adhesive tape is used to fix the heating wire, and the fixing can be achieved at the time of bonding. However, after washing, the phenomenon of adhesive tape peeling off often occurs. Moreover, the adhesive tape is manually completed, and it cannot be guaranteed that each channel is very firmly pasted, and there may be a phenomenon of missed pasting. After washing, the heating wire has no any constraint. Using this fixing method has the following disadvantages: when the electric heating wire passes through the channel formed by the adjacent two groups of quilting lines, the electric heating wire is in an arc shape. The arc-shaped part cannot be stitched by quilting due to the difficulty in processing. Therefore, the actual electric heating wire is free to transition in this part, and there is no fixing structure to fix the part of the electric heating wire. In order to facilitate threading, the distance between the two quilting lines forming the channel is relatively large, and the electric heating wire has high freedom in the channel. Therefore, when the product is dynamically used or washed, the electric heating wire will move, the arc-shaped segment between the two adjacent channels will not maintain the desired route, and one end of the line will be long and the other end of the line will be short. The end with more lines is easy to knot in a dynamic state, and the end with less lines will cause the substrate to gather and wrinkle. At the same time, due to the wide width of the channel compared to the diameter of the electric heating wire, the electric heating wire in the channel is also easy to knot during the movement. After the heating wire is knotted, the product is in a normal use state. In an abnormal use state, the product may have many abnormal conditions, such as: the product is easy to overheat, which can cause the user to be scalded; long-term use of the electric heating product in an abnormal state can cause the circuit to lose control, resulting in an abnormal circuit, which can burn the product in some serious cases, cause a fire, cause personal and property losses, and also can cause the product to self-destruct and become scrap. The heating wire knot is a big risk point for electric heating products. Once the electric heating product is knotted, it will be scrapped, resulting in a high return rate, which accounts for 4-5% of the total product amount each year. Therefore, the heating wire knot is something that all manufacturers want to avoid. In addition, using the above fixing structure, the setting of the quilting line and the threading are completed separately, which are two different processes. Generally, manual threading is adopted, and there are also imported automatic threading machines for threading in the industry. However, due to the inability to adopt an automatic way to link the two processes, the fixing of the electric heating wire cannot be fully automated, which makes the production efficiency of the entire industry low. Threading cannot be fully automated, which is a bottleneck in the industry.In order to solve the problem of non-automated wiring, in October 2023, the China Household Electrical Appliances Association Electric Heating Blanket and Underlay Committee proposed an industry task, and established an electric heating blanket and underlay automated wiring technology research and development group led by the household electrical appliances association, gathered industry leading enterprise forces to develop new products to improve automation level, and proposed the research and development idea of electric heating composite and glue composite. However, after a year of practice, the effect is not significant. This problem is recorded in the 2024 China Household Electrical Appliances Association Conference Minutes (China Electrical Association Special Number
[2024] 24). SUMMARY
[0005] The purpose of the present application is to solve the technical problems in the prior art electric heating product that the fixing structure of the electric heating wire is easy to cause the electric heating wire to be knotted, and cannot realize automated wiring. The present application provides an electric heating product, a fixing structure of an electric heating wire, and a fixing method.
[0006] The following technical solutions are specifically adopted:
[0007] A fixing structure of an electric heating wire, comprising a basting strip / belt and a stitching line, two ends of the basting strip / belt in the width direction constitute basting wings, and the two basting wings are oppositely arranged to form a channel for accommodating the electric heating wire, and the stitching line is arranged along the length direction of the basting strip / belt at the overlapping part of the two basting wings.
[0008] Further, the stitching line is used to stitch and connect the two oppositely arranged basting wings and the electric heating product body for fixing the electric heating wire; and / or the stitching line is more than one, when the stitching line is more than two, each stitching line is arranged in parallel, and / or the basting strip / belt is a basting cloth strip; and / or the channel is a complete channel without gaps in the length direction; and / or the electric heating wire is tightly wrapped by the basting strip / belt.
[0009] An electric heating product, comprising an electric heating product body, the electric heating product body comprising at least one surface layer and / or at least one substrate, an electric heating wire being fixed on the heating product body by a fixing structure, the fixing structure being any one of the fixing structures of the electric heating wire described above, the basting strip / belt being fixedly connected to the surface layer and / or the substrate by the stitching line, and the electric heating wire being wrapped in the channel and penetrating the length of the channel.
[0010] Further, the electric heating product comprises a first surface layer, a second surface layer, and a substrate, the substrate being sandwiched between the first surface layer and the second surface layer, and the electric heating wire being fixedly connected to the substrate by the fixing structure.
[0011] Further, it further comprises a wiring device, the wiring device being fixedly arranged on the electric heating product body, and two ends of the electric heating wire being respectively connected to the positive and negative electrodes of the wiring device.
[0012] Further, the electric heating wires are arranged on the substrate or the surface layer as a whole or in regions, and / or the wiring path of the electric heating wires is a plurality of straight lines connected head to tail in parallel, and each straight line is connected head to tail by an arc line.
[0013] Further, the first surface layer and the second surface layer are one of flannel, linen or weft-knitted fabric, and / or the substrate and the welt strip / belt are one of non-woven fabric, polyester fabric or polyester-cotton fabric, and / or the electric heating product is an electric heating clothing product, which is any one of an electric heating overblanket, an electric heating underblanket, an electric heating shawl, an electric heating thermal underwear, an electric heating thermal outerwear, an electric heating thermal trousers, or the electric heating product is an electric heating heating product, which is any one of an electric heating mattress, an electric heating pad, an electric heating overblanket, an electric heating underblanket, or the electric heating product is an electric heating outdoor product, which is any one of an electric heating thermal tent, an electric heating simple shed.
[0014] Further, the junction box is connected with the power plug through a power line, and a controller is arranged on the power line.
[0015] A fixing method of the electric heating wire, the electric heating wire and the welt strip / belt are arranged in the same direction along the length direction, the two ends of the welt strip / belt in the width direction are folded to overlap each other to form a package wing covering the electric heating wire, the two package wings of the welt strip / belt covering the electric heating wire are fixed by stitching with a thread, the electric heating wire is located in a channel formed by the two package wings, and then the welt strip / belt covering the electric heating wire is fixed on the substrate and / or the surface layer of the electric heating product through the package wings; or the electric heating wire and the welt strip / belt are arranged in the same direction along the length direction, the two ends of the welt strip / belt in the width direction are folded to overlap each other to form a package wing covering the electric heating wire, the two package wings of the welt strip / belt covering the electric heating wire are fixed by stitching with a thread and the substrate or the surface layer of the electric heating product, the electric heating wire is located in a channel formed by the two package wings, and is fixed on the substrate and / or the surface layer.
[0016] Further, the two ends of the electric heating wire are fixedly connected with the substrate and / or the surface layer through the junction box.
[0017] Compared with the prior art, the present application has the following beneficial effects:
[0018] The fixing structure and fixing method of the electric heating wire adopt the structure, the electric heating wire is wrapped in the overlock strip / belt along the length direction of the overlock strip / belt through the overlock strip / belt, the overlock strip / belt wraps the whole length of the electric heating wire, and the overlock strip / belt forms a channel accommodating the electric heating wire through the thread arranged on the opposite side of the two overlock wings, the whole electric heating wire is fixed by the overlock strip / belt, as long as the overlock strip / belt is fixed on the surface layer and / or the substrate of the electric heating product, the whole electric heating wire can be fixed on the heating product body, the fixing is firm and reliable, the structure is provided with the thread only at the opening of the side formed by the two overlock wings, the thread is located on one side of the electric heating wire, and the electric heating wire can be fixed on the heating product body by wrapping the electric heating wire and sewing the overlock strip / belt on the heating product body in the processing process, therefore, the process of threading the electric heating wire is omitted, the working operation link is reduced, the automation of the electric heating wire fixing can be realized, the production efficiency is greatly improved, the technical problems of low efficiency and non-automation of threading the electric heating wire, which have plagued the development of the industry, are solved, and unexpected technical effects are achieved, the fixing structure of the application can be directly fixed on the substrate, connected with the substrate and then connected with the surface layer, or the surface layer and the substrate can be sewn and fixed together, therefore, the adaptability is high, different fixing methods of the electric heating wire can be adopted according to different requirements, and the automation of the electric heating wire fixing can be realized through ordinary equipment.
[0019] The electric heating product adopting the structure of the application is fixed on the heating product body through the fixing structure formed by the overlock strip / belt and the thread, the fixing between the two is along the whole length of the electric heating wire in the range connected with the heating product body, and the electric heating wire is completely fixed on the heating product body, therefore, the heating product is integrated with the heating product body and does not dislocate no matter whether it is rubbed, balled or washed, and therefore, the knot is not formed, when the electric heating wire is fixed on the heating product body, the thread is arranged on one side of the electric heating wire only, the wiring path of the thread is not limited and can be completed through mechanical processing once, the processing difficulty is greatly reduced, the production efficiency is improved, the electric heating wire can be arranged on the surface layer or the substrate according to the requirements of the electric heating product, and the requirements of different heating products are met.
[0020] The electric heating line, the electric heating product are fixed by the method and the heating line fixing structure, the whole electric heating line is fixed in the determined position by the overlock strip / belt and the thread, and the wiring can be very regular and neat, so that the processing of the product is uniform, which is helpful for the control of the appearance quality and the sewing quality of the product. Compared with the existing technology, the electric heating line is fixed in the channel with a certain width by the quilting method, the electric heating line is only clamped between two quilting lines but not really fixed, and the displacement is easy to occur, the method and the fixing structure of the present application, the electric heating line is fixed in the overlock strip / belt from the beginning to the end, and the both ends of the electric heating line are fixed by the overlock strip / belt and the thread, so that the whole electric heating line is fixed in the determined position, therefore, the phenomenon of displacement from the open end of each channel is not occurred. Therefore, the phenomenon of knotting of the electric heating line can be avoided from the structural design aspect. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 It is a schematic diagram of the structure of the prior art electric heating product.
[0022] Fig. 2 It is a schematic diagram of the structure of the electric heating product of the present application. Fig. 1 It is a partial sectional enlarged view of A in Fig. 1.
[0023] Fig. 3 It is a schematic diagram of the structure of the embodiment of the electric heating product of the present application, wherein the body part of the electric heating product is expressed by an explosion diagram.
[0024] Fig. 4 It is a partial sectional enlarged view of A in Fig. 1, which shows the fixing structure of an embodiment structure. Fig. 2
[0025] BRIEF DESCRIPTION OF DRAWINGS
[0026] 1-electric heating product body, 10-substrate, 11-electric heating line, 12-first surface layer, 13-second surface layer, 14-overlock strip / belt, 15-thread, 16-overlock wing, 17-channel, 18-fixing structure, 21-power plug, 22-controller, 23-wiring box. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the present application more clear and obvious, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0028] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; relationship terms such as "first" and "second" and the like are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations.
[0029] As shown in Fig. 3-4 The electric heating product structure of the embodiment of the present application includes an electric heating product body 1 and an electric heating wire 11. The electric heating product body can only include a surface layer, only include a substrate 10, or both include a surface layer and a substrate, and the electric heating wire is fixedly arranged on the electric heating product body through a fixing structure. When the electric heating product body only includes a surface layer, the electric heating wire is fixedly arranged on the surface layer through the fixing structure, when the electric heating product body only includes a substrate, the electric heating wire is fixedly arranged on the substrate through the fixing structure, when the electric heating product body includes a surface layer and a substrate, the electric heating wire is fixedly arranged on the substrate through the fixing structure, the substrate is fixedly connected with the surface layer, and the electric heating wire can also be fixedly arranged on the substrate and the surface layer at the same time, and the three are integrally connected.
[0030] In a common embodiment, the surface layer includes a first surface layer 12 and a second surface layer 13, and the substrate 10 is clamped between the first surface layer and the second surface layer and is fixedly connected with the first surface layer and the second surface layer.
[0031] In the present application, the fixing structure comprises a basting strip / belt 14 wrapping the electric heating wire 11, and a sewing thread 15 sewing the opening side of the basting strip / belt 14 to the body of the electric heating product, the length direction of the basting strip / belt is wrapped outside the electric heating wire along the length direction of the electric heating wire, the width direction of the basting strip / belt forms two basting wings 16, the two basting wings are arranged in a superimposed manner, and the two basting wings and the body of the electric heating product are sewn together by the sewing thread. It can be that the two basting wings 16 of the basting strip / belt wrapping the electric heating wire are first sewn together by the sewing thread to clamp the electric heating wire, and then the electric heating wire is fixed to the inner side and / or the outer side of the electric heating product by the two basting wings through the sewing thread. It can also be that the basting strip / belt wrapping the electric heating wire is directly sewn and fixed to the inner side and / or the outer side of the body of the electric heating product by the sewing thread and the two basting wings. By using this fixing mode, since the entire length of the electric heating wire penetrates in the basting channel formed by the two basting wings of the basting strip / belt, and only needs to be fixed by the sewing thread at the two basting wings on one side of the electric heating wire, the electric heating wire can be wrapped while wiring, and the ordinary sewing machine can be used for single-line or multi-line sewing to realize the automation of wiring, and the dedicated basting line equipment can be used for basting to further improve the production efficiency. Moreover, since the electric heating wire is fixed in full length and wrapped by the basting strip / belt, the two ends of the electric heating wire are fixedly connected with the junction box during use, and the junction box is fixed on the body of the electric heating product, therefore, the electric heating wire moves together with the fixed body of the electric heating product, and does not move in the basting channel, so that the phenomenon of knotting of the electric heating wire can be avoided. Moreover, the wiring path of the electric heating wire is not limited, and the electric heating wire can be wired according to the required wiring path, and is arranged flexibly, so that the process of threading is omitted, the production efficiency is greatly improved, and the technical problem that has plagued the development of the industry is solved.
[0032] As an optional embodiment, the electric heating wire on the body of the electric heating product can be arranged integrally or in regions. When arranged in regions, the electric heating wires in different regions can be independently controlled to heat at different temperatures to meet different requirements.
[0033] As an optional embodiment, the first surface layer 12 and the second surface layer 13 can each be made of one of flannel, linen or warp-weft woven cloth, which can be selected according to actual requirements.
[0034] As an optional embodiment, the basting strip / belt can be made of a basting cloth strip or a basting strip. The sewing thread can be a single thread or multiple parallel threads.
[0035] The electric heating product can be an electric heating blanket, an electric heating thermal underwear, an electric heating thermal outerwear, an electric heating thermal pants or other clothing products, or an electric heating mattress, an electric heating upper cover blanket, an electric heating lower laying blanket or other heating products, and can also be made into an electric heating thermal tent or other outdoor products.
[0036] Non-woven fabric is generally used as the backing, as it is soft and suitable for clothing. Polyester or polyester-cotton blends can also be used as the backing. The seam tape / stitching is preferably made of non-woven fabric, polyester, or polyester-cotton blend.
[0037] The fixing structure of the present invention can be sewn by hand or by machine. By sewing multiple threads simultaneously by machine, efficiency is improved.
[0038] In a further improved technical solution, the electric heating product also includes a wiring section, which includes a junction box 23 fixed to the main body 1 of the electric heating product and a power cord connected to the junction box 23. The power cord is equipped with a power plug 21 and a controller 22, which are used for switching the power supply on and off and adjusting the heating level. See Appendix. Fig. 3 (for Fig. 2 (Enlarged view of a partial cross-section at point A).
[0039] The fixed structure of the present invention fixes the electric heating wire. The wiring path of the electric heating wire can be circular, meandering serpentine, planar spiral, or a square structure, etc.
[0040] The embodiments of this invention are intended to cover all such substitutions, modifications, and variations falling within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this invention should be included within the protection scope of this invention.
[0041] Example 1
[0042] The electric heating product is an electric heating blanket, consisting of a first surface layer and a second surface layer, with a substrate fixed between the first and second surface layers. Its dimensions are 50x60 inches. The surface layer fabric is made of flannel and cotton fleece, while the substrate fabric is non-woven fabric. The heating wire model is 202005025, with a pin density of 5.5mm. The wiring path is as follows... Fig. 1 As shown, the structure is a meandering serpentine pattern where straight lines are connected end-to-end by arcs. The washing equipment used is a Whirlpool 3LWTW4840YW1.
[0043] The fixing structure adopts the fixing structure of the present invention, which is wrapped with edge binding strips and then sewn to the substrate with a single line. The edge binding strips are made of non-woven fabric.
[0044] Comparative Example 1
[0045] The fixed structure has two substrates, and heating wire channels are stitched on the two substrates by quilting. The heating wires are threaded through the heating wire channels. The other components, such as the first surface layer, the second surface layer, the heating wire type, and the wiring path, are the same as in Example 1.
[0046] In Example 2, the outer fabric is single-sided fleece, the backing fabric and the seam wrapping strip / tape material are all polyester fabric, and the rest is the same as in Example 1.
[0047] The surface fabric of Example 3 is coral fleece, the backing fabric and the overlock strip / belt material is polyester cotton, and the rest is the same as Example 1.
[0048] The surface fabric and the backing fabric of Comparative Example 2 are the same as Example 2, and the rest is the same as Comparative Example 1.
[0049] The surface fabric and the backing fabric of Comparative Example 3 are the same as Example 3, and the rest is the same as Comparative Example 1.
[0050] The electric heating products of Examples 1-3 and Comparative Examples 1-3 are subjected to washing comparison experiments, the experimental equipment is Whirlpool 3L WTW4840YW1, and the test standard is UL964, and the machine washing test is carried out according to the following method:
[0051] The washing machine is filled with 65℃ warm water, half a cup of washing powder or mild soap is added, and stirring and dissolving are carried out. One product is placed in the washing machine for soaking for 5 minutes, slow stirring for 2 minutes, and normal speed spinning. The washing machine continues to be filled with cold water for rinsing, stirring for 1 minute, and rotating at normal speed. After completion, the rinsing is repeated once again. High-temperature drying is carried out in the automatic dryer for 5 minutes. Finally, the product is laid flat to the original shape and size until completely dry. Five samples are taken from each of the blankets of Examples 1-3, and five samples are taken from each of the blankets of Comparative Examples 1-3, and each blanket is subjected to washing for 30 times, and the appearance is observed after washing. The test results are as follows:
[0052] Table 1: Comparison table of experimental results
[0053]
[0054]
[0055]
[0056] Conclusion: No matter what material is used for the surface material, the backing material and the overlock strip / belt material of the electric heating product, the electric heating wire fixed by the fixed structure of the structure of the present application will not appear knot phenomenon, and will not appear the phenomenon that the electric heating wire is thrown out of the channel and bent, while the comparative examples 1-3 have the following knot rates: Comparative Example 1 is 80%, Comparative Example 2 is 20%, and Comparative Example 3 is 100%. The phenomenon that the electric heating wire is thrown out of the channel accounts for 20%, 0 and 40% respectively. The function is generally normal after washing and testing immediately.
[0057] It can also be seen from the test data that if the quilted fabric is quilted by using the prior art and the process of penetrating the heating wire, the safety of the quilt is greatly related to the fabric. Some fabrics are better and some are worse. But the knotting phenomenon is easy to occur. The heating wire fixing structure and fixing method of the present application are used to fix the heating wire, the fixing effect is not affected by the type of fabric, the selection of consumers is much larger, and the safety is guaranteed.
Claims
1. A fixing structure for an electric heating wire, characterized in that, It includes a binding strip / band and a sewing thread. The two ends of the binding strip / band in the width direction form a binding wing. The two binding wings are arranged opposite each other to form a channel for accommodating the electric heating wire. The sewing thread is arranged along the length direction of the binding strip / band in the overlapping part of the two binding wings.
2. The fixing structure for an electric heating wire as described in claim 1, characterized in that, The sewing thread is used to sew the two overlapping wings together with the main body of the electric heating product that fixes the electric heating wire; and / or there is one or more sewing threads, and when there are two or more sewing threads, the sewing threads are arranged in parallel; and / or the binding strip / band is a binding fabric strip; and / or the channel is a complete channel without gaps in the length direction; and / or the electric heating wire is tightly wrapped by the binding strip / band.
3. An electrically heated product, characterized in that, The product includes an electric heating product body, which includes at least one surface layer and / or at least one substrate. An electric heating wire is fixed to the electric heating product body by a fixing structure. The fixing structure adopts the electric heating wire fixing structure according to any one of claims 1-2. The binding strip / band is fixedly connected to the surface layer and / or substrate by the seam. The electric heating wire is wrapped in the channel and extends through the length of the channel.
4. The electric heating product according to claim 3, characterized in that, The electric heating product includes a first surface layer, a second surface layer, and a substrate, with the substrate sandwiched between the first and second surface layers, and the electric heating wires fixedly connected to the substrate through a fixing structure.
5. The electric heating product according to claim 3, characterized in that, It also includes a wiring device, which is fixedly mounted on the body of the electric heating product, and the two ends of the electric heating wire are respectively connected to the positive and negative terminals of the wiring device.
6. The electric heating product according to claim 5, characterized in that, The electric heating wires are arranged as a whole or in sections on the substrate or surface, and / or the wiring path of the electric heating wires consists of multiple parallel straight lines connected end to end, with each straight line connected end to end by an arc line.
7. The electric heating product according to claim 3, characterized in that, The first and second outer layers are respectively one of fleece, linen, or woven fabric, and / or the substrate and the binding strip / tape are respectively one of non-woven fabric, polyester fabric, or polyester-cotton fabric, and / or the electric heating product is an electric heating clothing product, which is any one of electric heating blanket, electric heating thermal underwear, electric heating thermal outerwear, or electric heating thermal pants; or the electric heating product is an electric heating product, which is any one of electric heating mattress, electric heating pad, electric heating top blanket, or electric heating bottom blanket; or the electric heating product is an electric heating outdoor product, which is any one of electric heating tent or electric heating shed.
8. The electric heating product according to claim 3, characterized in that, The junction box (23) is connected to the power plug (21) via a power cord, and a controller (22) is configured on the power cord.
9. A method for fixing an electric heating wire, characterized in that, The heating wire and the binding strip / band are aligned in the same direction along their length. The two ends of the binding strip / band in the width direction are folded together to form wings covering the heating wire. The two wings of the binding strip / band covering the heating wire are sewn together and fixed, so that the heating wire is located in the channel formed by the two wings. The binding strip / band covering the heating wire is then fixed to the substrate and / or surface of the electric heating product through its wings. Alternatively, the heating wire and the binding strip / band are aligned in the same direction along their length. The two ends of the binding strip / band in the width direction are folded together to form wings covering the heating wire. The two wings of the binding strip / band covering the heating wire are sewn together and fixed to the substrate or surface of the electric heating product, so that the heating wire is located in the channel formed by the two wings and fixed to the substrate and / or surface.
10. The method for fixing the electric heating wire as described in claim 9, characterized in that, The two ends of the electric heating wire are fixedly connected to the substrate and / or surface layer through the junction box.