A heating and holding device
By using flexible materials for the heating contact surface, placement surface, and heat source layer in the heating and insulation device, the heating wire is tightly wrapped in the heat source layer, which solves the problems of heating wire detachment and positional displacement, and achieves the effects of structural stability and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU YINGKAI IMPORT & EXPORT TRADING CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
In existing heating and insulation devices, the heating wires are prone to falling off or shifting due to the movement of the flexible insulation device, which affects the heating and insulation effect and shortens the service life.
The heating contact surface, placement surface, and heat source layer are made of flexible materials. The heating wire is located in the heat source layer and is tightly wrapped. It is in close contact with the heat source layer through implantation or casting to form an elastic casting layer or implantation layer, which enhances the structural stability.
The heating wire is not easily detached and its position is stable, which extends the service life of the heating and insulation device and improves the user experience.
Smart Images
Figure CN224401690U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a heating and heat preservation device. Background Technology
[0002] Existing heating and heat preservation devices include food warming platforms or heating plates, which usually generate heat by heating wires embedded in the housing. The existing heating wires are usually located in pre-drilled wire grooves, and the heating wires are fixed by using glue injection or clips to fit the shape of the groove.
[0003] However, the above-mentioned method of embedding wire grooves in the shell still lacks structural stability. In the event of glue detachment or improper assembly, the heating wire is easily detached due to the movement of the food warming platform or heating plate. Especially when the above structure is applied to flexible heat preservation devices, the heating wire is prone to displacement during repeated folding or rolling, which affects the subsequent heating and heat preservation effect and the service life of the heating and heat preservation device. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a heating and heat preservation device.
[0005] The technical solution adopted by this utility model to solve its technical problem is:
[0006] This utility model provides a heating and heat preservation device, including a power supply component and a heating wire electrically connected to the power supply component; it also includes a heating body, the heating body including a heating contact surface at the top and a placement surface at the bottom, a heat source layer is formed between the heating contact surface and the placement surface, and the working part of the heating wire is located in the heat source layer and is tightly wrapped by the heat source layer.
[0007] The heat source layer is either an implanted layer or an elastic casting layer, and the heating wire is in close contact with the heat source layer.
[0008] Among them, at least the heating contact surface, the placement surface, and the heat source layer are made of flexible materials.
[0009] The heating and heat preservation device includes a flexible top plate, the heating contact surface is formed on the upper surface of the flexible top plate, the heat source layer is located inside the flexible top plate, and the placement surface is formed inside the heat source layer.
[0010] The flexible top plate includes an annular outer wall corresponding to the contour of the heat source layer, and the annular outer wall is sleeved around the heat source layer.
[0011] The placement surface includes a placement surface body located at the bottom of the heating body, and a plurality of supporting protrusions protruding downward from the placement surface body, wherein a heat dissipation channel is formed between the supporting protrusions.
[0012] The support protrusion includes a protrusion body and a support transition portion extending obliquely upward from the bottom of the protrusion body, the top of which extends to the placement surface body.
[0013] The cross-sectional shape of the protruding body is elliptical, and the shape of the supporting transition portion corresponds to the shape of the protruding body, including a long end corresponding to the major axis of the elliptical protruding body and a short end corresponding to the minor axis of the elliptical protruding body.
[0014] The heating wire further includes a connecting portion extending from the heat source layer to the power supply component. The connecting portion includes a first end and a second end. The working part of the heating wire includes a connected linear segment and a "U"-shaped detour segment. The linear segment is connected to the first end of the connecting portion, and the "U"-shaped detour segment is connected to the second end of the connecting portion.
[0015] The heating wire also includes a connecting portion extending from the heat source layer to the power supply component. The connecting portion includes a first end and a second end. The working part of the heating wire includes a connected linear segment and a "U"-shaped detour segment. The linear segment is connected to the first end of the connecting portion, and the "U"-shaped detour segment is connected to the second end of the connecting portion.
[0016] The heating and heat preservation device includes an insulating shell for placing the power supply components. The insulating shell has a support foot at the bottom, and the bottom of the support foot is on the same horizontal plane as the bottom of the protruding body.
[0017] The insulating housing includes an upper housing and a lower housing, with an opening formed between the upper housing and the lower housing for the edge of the heating body to extend into.
[0018] The beneficial effects of this utility model embodiment are:
[0019] This utility model provides a heating and heat preservation device, including a power supply component and a heating wire electrically connected to the power supply component; it also includes a heating body, which includes a heating contact surface at the top and a placement surface at the bottom, forming a heat source layer between the heating contact surface and the placement surface. The working part of the heating wire is located in the heat source layer and is tightly wrapped by the heat source layer. For example, the heat source layer can be an elastic casting layer or an implanted layer. The heating wire can be cast simultaneously with the heat source layer or embedded in the heat source layer to achieve close contact between the heating wire and the heat source layer. The heating wire is not easily detached due to the movement of the heating and heat preservation device, especially when applied to flexible heat preservation devices. During repeated folding or rolling of the flexible heat preservation device, the heating wire is less likely to shift position, ensuring the subsequent heating and heat preservation effect, extending the service life of the heating and heat preservation device, and improving the user experience. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Figure 1 This is a top-view perspective view of the heating and heat preservation device of the first embodiment of this utility model;
[0023] Figure 2 yes Figure 1 Exploded view of the insulating shell and the heating body after they have been separated;
[0024] Figure 3 Yes Figure 2 The exploded view after further disassembly shows that the heating wires and heat source layer have also been separated.
[0025] Figure 4 yes Figure 1 A three-dimensional image viewed from below;
[0026] Figure 5 This is a perspective view of the heating wire of the first embodiment of this utility model;
[0027] Figure 6 This is a perspective view of the insulating shell of the first embodiment of this utility model;
[0028] Figure 7 yes Figure 4 Enlarged view of point A.
[0029] Reference numerals: Heating wire 1; Working part 11; Linear segment 111; "U"-shaped meandering segment 112; Connecting part 12; First end 121; Second end 122; Power supply component 2; Heating body 3; Heating contact surface 31; Placement surface 32; Placement surface body 321; Support protrusion 322; Protrusion body 3221; Support transition part 3222; Long end 3222a; Short end 3222b; Heat source layer 33; Flexible top plate 34; Annular outer wall 341; Notch 35; First through hole 36; Insulating shell 4; Support leg 41; Upper shell 42; Positioning post 421; Lower shell 43; Second through hole 431; Opening 44. Detailed Implementation
[0030] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0031] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.
[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] First embodiment:
[0034] Reference Figures 1 to 7 This embodiment provides a heating and heat preservation device, including a power supply component 2 and a heating wire 1 electrically connected to the power supply component 2; it also includes a heating body 3, the heating body 3 including a heating contact surface 31 at the top and a placement surface 32 at the bottom, a heat source layer 33 is formed between the heating contact surface 31 and the placement surface 32, and the working part 11 of the heating wire 1 is located in the heat source layer and is tightly wrapped by the heat source layer 33.
[0035] In this embodiment, the heat source layer 33 is an elastic casting layer. For example, the heat source layer 33 can be silicone, PE, TPE, or PLA; in this embodiment, it is silicone. By casting silicone onto the heating wire 1, the heating wire 1 in the elastic casting layer and the silicone portion are in close contact, making it less prone to positional displacement.
[0036] At least the heating contact surface 31, the placement surface 32, and the heat source layer described above are made of flexible materials. As a preferred option and not a limitation, the heating body 3 in this embodiment is entirely made of flexible materials, wherein the heating wire 1 includes wires and insulating material wrapping the wires.
[0037] In this embodiment, the heating and heat preservation device includes a flexible top plate 34, the heating contact surface 31 is formed on the upper surface of the flexible top plate 34, the heat source layer 33 is located below the flexible top plate 34, and the placement surface 32 is formed at the bottom of the heat source layer 33. Specifically, the heat source layer 33 in this embodiment can serve as the flexible base plate of the heating and heat preservation device.
[0038] As a preferred embodiment, and not a limitation, the flexible top plate 34 of this embodiment includes an annular outer wall 341 corresponding to the contour of the heat source layer 33, and the annular outer wall 341 is fitted around the heat source layer 33. This ensures that the heat source layer 33, which serves as a flexible base plate, is completely surrounded by the annular outer wall 341. Since the flexible top plate 34 of this embodiment is integrally formed, the heating and heat preservation device of this embodiment has better structural stability. Furthermore, when the heating and heat preservation device of this embodiment is placed upright on a table, from the user's perspective, only the flexible top plate 34 is exposed, improving the integrated effect of the heating and heat preservation device of this embodiment and enhancing the user experience. The flexible top plate 34 is made of silicone, PE, TPE, or PLA.
[0039] As a specific solution and not a limitation, the placement surface 32 includes a placement surface body 321 located at the bottom of the heating body 3, and a plurality of support protrusions 322 protruding downward from the placement surface body 321, with heat dissipation channels formed between the support protrusions 322. In this embodiment, the heating body 3 is raised by the support protrusions 322, so that heat dissipation channels are formed between the support protrusions 322 below the heating body 3, which is beneficial for heat dissipation at the bottom of the heating and heat preservation device and improves product stability.
[0040] In some embodiments, the support protrusion 322 may be integrally manufactured with the protrusion body 3 and made of the same material. For example, the support protrusion 322 may be a U-shaped column. Preferably, in this embodiment, the support protrusion 322 includes a protrusion body 3221 and a support transition portion 3222 extending obliquely upward from the bottom of the protrusion body 3221. The top of the support transition portion 3222 extends to the placement surface body 321.
[0041] Furthermore, the cross-sectional shape of the protruding body 3221 is elliptical, and the shape of the supporting transition portion 3222 corresponds to the shape of the protruding body 3221, including a long end 3222a corresponding to the major axis of the elliptical protruding body 3221, and a short end 3222b corresponding to the minor axis of the elliptical protruding body 3221. In this embodiment, the supporting transition portion 3222 increases the contact area between the supporting protrusion 322 and the placement surface body 321, so that the supporting protrusion 322 can play a better role in supporting the heating body 3. When the heating body 3 is placed on the object to be heated, it will not deform or collapse due to the lack of support in some parts of the heating body 3, thus improving the stability of the product.
[0042] The objects to be heated in this embodiment include, but are not limited to, food, tea, and ingredients. For example, the heating and heat preservation device in this embodiment can also be used to dry clothes, defrost food, and heat face masks.
[0043] As a specific embodiment, and not a limitation, the heating and heat preservation device includes an insulating housing 4 for housing the power supply component 2. The insulating housing 4 has a support leg 41 at its bottom, and the bottom of the support leg 41 is on the same horizontal plane as the bottom of the protruding body 3221. The fact that the bottom of the support leg 41 and the bottom of the protruding body 3221 are on the same horizontal plane effectively supports the insulating housing 4, further improving the structural stability of the heating and heat preservation device.
[0044] As a specific solution rather than a limitation, the heating wire 1 also includes a connecting portion 12 extending from the heat source layer 33 to the power supply component 2. The connecting portion 12 includes a first end 121 and a second end 122. The working portion 11 of the heating wire includes a linear segment 111 and a "U"-shaped detour segment 112 connected to each other. The linear segment 111 is connected to the first end 121 of the connecting portion 12, and the "U"-shaped detour segment 112 is connected to the second end 122 of the connecting portion 12.
[0045] As a specific embodiment and not a limitation, the thickness of the heating body 3 is less than 5 cm, and the laying area of the working part 11 of the heating wire 1 is greater than 60% of the surface area of the heating body 3. Preferably, in this embodiment, the thickness of the heating body 3 is the sum of the thicknesses of the flexible top plate 34 and the placement surface 32, and the thickness of the heating body 3 is approximately 2-3 cm, and the laying area of the working part 11 of the heating wire 1 is greater than 80% of the surface area of the heating body 3.
[0046] As a specific embodiment and not a limitation, the insulating housing 4 includes an upper housing 42 and a lower housing 43, with an opening 44 formed between the upper housing 42 and the lower housing 43 for the edge of the heating body 3 to extend into. The insulating housing 4 is located at the short side of the heating body 3, and the opening 44 allows the short side of the heating body 3 to extend into. By providing the opening 44 for the short side of the heating body 3 to extend into, a better integrated effect is ensured while making the connection between the heating body 3 and the insulating housing 4 tighter.
[0047] In this embodiment, a notch 35 is formed at the short side, and the first end 121 and the second end 122 of the connecting part 12 extend out of the notch 35 and enter the insulating housing 4 to be electrically connected to the power supply component 2.
[0048] To further enhance the structural stability of the heating and heat preservation device, the heating body 3 of this embodiment has a plurality of first through holes 36 formed at the edge corresponding to the notch 35, the upper shell 42 has a positioning post 421 formed at the corresponding position of the first through hole 36, and the lower shell 43 has a second through hole 431 formed at the corresponding position of the positioning post 422.
[0049] The surface of the heating contact surface is also provided with a thermochromic layer. Users can visually observe the pattern range and depth of the thermochromic layer to determine the temperature and radiation range of the heating body 3, providing intuitive instructions for heating / heat preservation operations.
[0050] As a preferred option rather than a limitation, the power supply component 2 in this embodiment also includes a control module. The control module is used to control the temperature level of the heating body 3 and provide a timer switch function, so that the heating and heat preservation device in this embodiment has the functions of constant temperature and timed on / off.
[0051] This utility model provides a heating and heat preservation device, including a power supply component and a heating wire electrically connected to the power supply component; it also includes a heating body, which includes a heating contact surface at the top and a placement surface at the bottom, forming a heat source layer between the heating contact surface and the placement surface. The working part of the heating wire is located in the heat source layer and is tightly wrapped by the heat source layer. For example, the heat source layer can be an elastic casting layer or an implanted layer. The heating wire can be cast simultaneously with the heat source layer or embedded in the heat source layer to achieve close contact between the heating wire and the heat source layer. The heating wire is not easily detached due to the movement of the heating and heat preservation device, especially when applied to flexible heat preservation devices. During repeated folding or rolling of the flexible heat preservation device, the heating wire is less likely to shift position, ensuring the subsequent heating and heat preservation effect, extending the service life of the heating and heat preservation device, and improving the user experience.
[0052] Second embodiment:
[0053] This embodiment provides a heating and heat preservation device. Unlike the first embodiment described above, the heat source layer in this embodiment is an implanted layer. By implanting the heating wire into the heat source layer, the heating wire is made into close contact with the heat source layer.
[0054] Meanwhile, the heating and heat preservation device of this embodiment includes a flexible base plate, the placement surface is formed at the bottom of the flexible base plate, the heat source layer is located above the flexible base plate, and the heating contact surface is formed at the top of the heat source layer. Specifically, the heat source layer of this embodiment can serve as the flexible top plate of the heating and heat preservation device. The flexible base plate of this embodiment is integrally molded, and the material of the flexible base plate is silicone, PE, TPE, or PLA.
[0055] Third embodiment:
[0056] This embodiment provides a heating and heat preservation device. Unlike the first embodiment described above, the heating and heat preservation device in this embodiment also includes a flexible base plate. The heat source layer is located between the flexible top plate and the flexible base plate. The heat source layer can be connected to the flexible top plate and the flexible base plate by heat fusion.
[0057] The above description provides one or more embodiments in conjunction with specific content, but it is not intended that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.
Claims
1. A heating and heat preservation device, comprising a power supply component and a heating wire electrically connected to the power supply component; characterized in that, It also includes a heating body, which includes a heating contact surface at the top and a placement surface at the bottom. A heat source layer is formed between the heating contact surface and the placement surface, and the working part of the heating wire is located in the heat source layer and is tightly wrapped by the heat source layer.
2. The heating and heat preservation device according to claim 1, characterized in that, The heat source layer is an implanted layer or an elastic casting layer, and the heating wire is in close contact with the heat source layer.
3. The heating and heat preservation device according to claim 1 or 2, characterized in that, At least the heating contact surface, the placement surface, and the heat source layer are made of flexible materials.
4. The heating and heat preservation device according to claim 3, characterized in that, It includes a flexible top plate, the heating contact surface is formed on the upper surface of the flexible top plate, the heat source layer is located inside the flexible top plate, and the placement surface is formed inside the heat source layer.
5. The heating and heat preservation device according to claim 4, characterized in that, The flexible top plate includes an annular outer wall corresponding to the contour of the heat source layer, and the annular outer wall is sleeved around the heat source layer.
6. The heating and heat preservation device according to claim 5, characterized in that, The placement surface includes a placement surface body located at the bottom of the heating body, and a plurality of support protrusions protruding downward from the placement surface body, wherein a heat dissipation channel is formed between the support protrusions.
7. The heating and heat preservation device according to claim 6, characterized in that, The support protrusion includes a protrusion body and a support transition portion extending obliquely upward from the bottom of the protrusion body, the top of the support transition portion extending to the placement surface body.
8. The heating and heat preservation device according to claim 7, characterized in that, The cross-sectional shape of the protruding body is elliptical, and the shape of the supporting transition portion corresponds to the shape of the protruding body, including a long end corresponding to the major axis of the elliptical protruding body and a short end corresponding to the minor axis of the elliptical protruding body.
9. The heating and heat preservation device according to claim 8, characterized in that, The heating wire also includes a connecting portion extending from the heat source layer to the power supply component. The connecting portion includes a first end and a second end. The working part of the heating wire includes a connected linear segment and a "U"-shaped detour segment. The linear segment is connected to the first end of the connecting portion, and the "U"-shaped detour segment is connected to the second end of the connecting portion. The heating wire also includes a connecting portion extending from the heat source layer to the power supply component. The connecting portion includes a first end and a second end. The working part of the heating wire includes a connected linear segment and a "U"-shaped detour segment. The linear segment is connected to the first end of the connecting portion, and the "U"-shaped detour segment is connected to the second end of the connecting portion.
10. The heating and heat preservation device according to claim 9, characterized in that, The heating and heat preservation device includes an insulating housing for placing power supply components, the insulating housing having a support foot at the bottom, the bottom of the support foot being at the same horizontal plane as the bottom of the protruding body; The insulating housing includes an upper housing and a lower housing, with an opening formed between the upper housing and the lower housing for the edge of the heating body to extend into.