Chopping board

By adopting a flexible pad and heating wire integrated hot-melt molding design in the food warmer, the problems of uneven glue application and high cost in fixing the heating wire in existing food warmers are solved, achieving glue-free fixing and reducing material and labor costs.

CN223817385UActive Publication Date: 2026-01-23GUANGDONG WILLING TECH CORP
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Patent Information

Application Number
CN202520074716.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-13
Publication Date
2026-01-23
Estimated Expiration
2035-01-13

AI Technical Summary

Technical Problem

Existing food warming boards face challenges in achieving uniform glue application and reducing material and labor costs, especially those using heating wires for fixing, which are difficult to mold efficiently in one piece.

Method used

A flexible pad is used as the heating pad, and the bottom surface has a linear wire mounting groove. The heating wire is fitted with a flexible sleeve, and the heating wire is fixed to the heating pad by hot melt molding, avoiding the glue application step.

Benefits of technology

This technology enables adhesive-free fixing of the heating wire and heating pad, reducing material and labor costs while ensuring the stability and uniform distribution of the heating wire.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a vegetable warming board, which comprises a heating pad and a heating wire, the heating pad is a flexible pad, the bottom surface of the heating pad is provided with a line-shaped wire containing groove, and the bottom of the wire containing groove is provided with a line-shaped groove opening; the heating wire is provided with a line-shaped flexible sleeve in a sleeved mode, the heating wire penetrates through the notch to be installed in the wire containing groove, the heating wire is sequentially distributed in the extending direction of the wire containing groove, the bottom of the flexible sleeve protrudes downwards to the outer portion of the notch, and the flexible sleeve and the wire containing groove are integrally formed in a hot melting mode. The heating pad is reasonable in structural design, the flexible sleeve of the heating wire and the wire containing groove of the heating pad are integrally formed in a hot melting mode, gluing is not needed, two layers of silica gel pads are not needed, and therefore the material cost and the labor cost are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a hot plate technology field especially relates to a hot plate. BACKGROUND

[0002] The hot plate can be placed on the table top to heat or keep constant temperature of the food, so that the food does not need to be heated twice.

[0003] In the prior art, one kind of hot plate is that the heating wire is buckled into the wire slot in the bottom of the silica gel pad, and then the heating wire is fixed by gluing. The problem of this kind of hot plate is that it is difficult to glue uniformly. Another kind of hot plate is that the heating wire is clamped by the upper and lower silica gel pads, and the silica gel pads are integrally formed. The problem of this kind of hot plate is that the silica gel pads need to be pressed twice, and the material and labor costs are high. SUMMARY

[0004] The utility model aims at providing a hot plate to solve the technical problems of the hot plate in the background technology.

[0005] In order to achieve the above purpose, the technical scheme of the utility model provides a hot plate, which comprises a heating pad and a heating wire. The heating pad is a flexible pad. The bottom surface of the heating pad is provided with a wire slot in the form of a line. The bottom of the wire slot is provided with a slot in the form of a line. The heating wire is provided with a flexible sleeve in the form of a line. The heating wire is inserted into the wire slot through the slot. The heating wire is distributed along the extension direction of the wire slot. The bottom of the flexible sleeve protrudes downward to the outside of the slot. The flexible sleeve and the wire slot are integrally formed by hot melting.

[0006] Further, the heating pad is a silica gel pad, and the flexible sleeve is a silica gel sleeve.

[0007] Further, the edge of the slot protrudes downward more than the bottom surface of the heating pad.

[0008] Further, the bottom surface of the heating pad is also provided with a plurality of foot pads. The bottom surface of the foot pad protrudes downward more than the edge of the slot.

[0009] Further, the edge of the heating pad is provided with a power supply. The two ends of the heating wire are electrically connected with the power supply.

[0010] Further, the cross section of the wire slot is arc-shaped or square-shaped. The cross section of the flexible sleeve is circular.

[0011] Further, the thickness of the flexible sleeve is greater than or equal to 2mm, and the outer diameter of the flexible sleeve is greater than or equal to 5mm.

[0012] Further, the wire accommodating groove comprises a plurality of straight line segments and a plurality of curved line segments, and the straight line segments are connected with the curved line segments.

[0013] As a preferred embodiment, a continuous limiting shell in a line shape is arranged below the notch, the continuous limiting shell is sequentially distributed along the extension direction of the wire accommodating groove, the two side edges of the continuous limiting shell are integrally formed with the two side edges of the notch by hot melting, and the continuous limiting shell forms continuous limiting for the heating wire and the flexible sleeve in the wire accommodating groove.

[0014] As a preferred embodiment, a plurality of interval limiting shells are arranged below the notch, the interval limiting shells are sequentially distributed along the extension direction of the wire accommodating groove, the interval limiting shells have intervals therebetween, the two side edges of the interval limiting shells are integrally formed with the two side edges of the notch by hot melting, and the interval limiting shells form interval limiting for the heating wire and the flexible sleeve in the wire accommodating groove.

[0015] In summary, the technical scheme of the utility model has the following beneficial effects: the utility model has a reasonable structure, the heating pad is a flexible pad, the bottom surface of the heating pad is provided with a wire accommodating groove in a line shape, the bottom of the wire accommodating groove is provided with a notch in a line shape, the heating wire is provided with a flexible sleeve in a line shape, the heating wire is arranged in the wire accommodating groove through the notch, the heating wire is sequentially distributed along the extension direction of the wire accommodating groove, the bottom of the flexible sleeve protrudes downward to the outside of the notch, and the flexible sleeve is integrally formed with the wire accommodating groove by hot melting; when the heating pad and the heating wire are integrally formed, the heating wire is first buckled in the wiring groove of the mold, then the mold presses the heating wire into the wire accommodating groove of the heating pad, then the mold integrally forms the flexible sleeve on the heating wire and the wire accommodating groove of the heating pad by hot melting, and finally the wiring groove of the mold is separated from the flexible sleeve of the heating wire (i.e. the wiring groove is separated from the part of the flexible sleeve protruding to the outside of the notch). BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a sectional view of the embodiment 1 of the utility model;

[0017] Figure 2 is Figure 1 is an enlarged view of the A area of

[0018] Figure 3 is a sectional view of the exploded structure of the embodiment 1 of the utility model;

[0019] Figure 4 is an exploded structure diagram of the embodiment 1 of the utility model;

[0020] Figure 5 is the three-dimensional structure schematic view of embodiment 1 of the utility model;

[0021] Figure 6 is the cross section structure schematic view of embodiment 2 of the utility model;

[0022] Figure 7 is the B area enlarged view of Figure 6 ;

[0023] Figure 8 is the cross section structure schematic view of the exploded structure of embodiment 2 of the utility model;

[0024] Figure 9 is the exploded structure schematic view of embodiment 2 of the utility model;

[0025] Figure 10 is the three-dimensional structure schematic view of embodiment 2 of the utility model;

[0026] Figure 11 is the cross section structure schematic view of embodiment 3 of the utility model;

[0027] Figure 12 is the C area enlarged view of Figure 11 ;

[0028] Figure 13 is the cross section structure schematic view of the exploded structure of embodiment 3 of the utility model;

[0029] Figure 14 is the exploded structure schematic view of embodiment 3 of the utility model;

[0030] Figure 15 is the three-dimensional structure schematic view of embodiment 3 of the utility model;

[0031] Mark explanation: 1-heating pad, 2-heating wire, 3-power supply, 4-continuous limiting shell, 5-interval limiting shell;

[0032] 101-wire slot, 1011-straight line section, 1012-curved section, 102-slot, 103-foot pad, 201-flexible sleeve. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, but do not constitute the limitation to the protection scope of the utility model.

[0034] In the utility model, in order to describe more clearly, make the following explanation: the observer faces the attached Figure 1When observing, the observer below is designated as "above," and the observer above is designated as "below." It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below," etc., used in this document to indicate orientation or positional relationships are based on the accompanying drawings and are solely for the purpose of clearly describing this utility model. They do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0035] See Figures 1 to 5 This embodiment 1 provides a food warmer, including a heating pad 1 and a heating wire 2. The heating pad 1 is a flexible pad, and the bottom surface of the heating pad 1 is provided with a linear wire mounting groove 101. The bottom of the wire mounting groove 101 is provided with a linear slot 102. A linear flexible sleeve 201 is fitted on the heating wire 2. The heating wire 2 passes through the slot 102 and is inserted into the wire mounting groove 101. The heating wire 2 is distributed sequentially along the extension direction of the wire mounting groove 101. The bottom of the flexible sleeve 201 protrudes downward to the outside of the slot 102. The flexible sleeve 201 and the wire mounting groove 101 are integrally formed by heat fusion. Function: The heating pad is a flexible pad with a linear wire mounting groove on its bottom surface. The bottom of the wire mounting groove has a linear opening. A linear flexible sleeve is fitted onto the heating wire, which passes through the opening and is inserted into the wire mounting groove. The heating wire is distributed sequentially along the extension direction of the wire mounting groove. The bottom of the flexible sleeve protrudes downwards to the outside of the opening. The flexible sleeve and the wire mounting groove are thermally fused together. Therefore, when it is necessary to integrally form the heating pad and heating wire, firstly, the heating wire is placed in the wiring groove of the mold. Then, the mold presses the heating wire into the wire mounting groove of the heating pad. Next, the mold thermally fuses the flexible sleeve on the heating wire and the wire mounting groove of the heating pad together. Finally, the wiring groove of the mold detaches from the flexible sleeve of the heating wire (i.e., the part of the wiring groove that detaches from the flexible sleeve and protrudes to the outside of the opening). As can be seen from this analysis, this utility model achieves integral thermal fusion of the flexible sleeve of the heating wire and the wire mounting groove of the heating pad, eliminating the need for glue and two layers of silicone pads, thus reducing material and labor costs.

[0036] Process of Example 1:

[0037] Step S1: Select heating pad 1, heating wire 2, and mold: Heating pad 1 is a flexible pad, and the bottom surface of heating pad 1 is provided with a linear wire mounting groove 101, and the bottom of the wire mounting groove 101 is provided with a linear slot 102; the heating wire 2 is fitted with a linear flexible sleeve 201; the mold is provided with a wiring groove.

[0038] Step S2, Wire mounting: First, attach the heating wire 2 into the wiring groove of the mold, and then press the heating wire 2 into the wiring groove 101 of the heating pad.

[0039] Step S3, Hot Melting: The mold integrally forms the flexible sleeve 201 on the heating wire 2 and the wire mounting groove 101 of the heating pad 1 by hot melting;

[0040] Step S4, Demolding: The part of the wiring groove of the mold that protrudes from the flexible sleeve 201 of the heating wire 2 to the outside of the groove.

[0041] Specifically, heating pad 1 is a silicone pad, and flexible sleeve 201 is a silicone sleeve. Function: Silicone is soft and resistant to high temperatures.

[0042] Specifically, the edge of the slot 102 protrudes downwards compared to the bottom surface of the heating pad 1. Function: Because the heating wire needs to maintain a certain distance (e.g., 2mm) from the top surface of the heating pad, the downward protrusion of the edge of the slot 102 reduces the required thickness of the heating pad.

[0043] Specifically, the bottom surface of the heating pad 1 is also provided with several feet 103, the bottom surface of which protrudes downwards compared to the edge of the slot 102. Function: The feet 103 facilitate airflow and heat dissipation under the heating pad.

[0044] Specifically, a power supply 3 is provided at the edge of the heating pad 1, and the two ends of the heating wire 2 are electrically connected to the power supply 3. Function: The power supply 3 can provide electrical energy to the heating wire.

[0045] Specifically, the cross-section of the wiring groove 101 is arc-shaped or square, while the cross-section of the flexible sleeve 201 is circular. Function: The arc-shaped or square wiring groove facilitates the integral molding of the circular flexible sleeve through heat fusion.

[0046] Specifically, the thickness of the flexible sleeve 201 is ≥2mm, and the outer diameter of the flexible sleeve 201 is ≥5mm. Function: This thickness ensures the safe use of the heating wire.

[0047] Specifically, the wire mounting groove 101 includes several parallel straight segments 1011 and several curved segments 1012, with the straight segments 1011 and the curved segments 1012 connected. Function: This arrangement of the wire mounting groove allows the heating wires to be evenly distributed on the bottom surface of the heating pad.

[0048] Example 2, see Figures 6-10 Below the slot 102, there is a continuous linear limiting shell 4. The continuous limiting shell 4 is distributed sequentially along the extension direction of the wire mounting slot 101. The two side edges of the continuous limiting shell 4 are integrally formed with the two side edges of the slot 102 by heat fusion. The continuous limiting shell 4 continuously limits the heating wire 2 and the flexible sleeve 201 inside the wire mounting slot 101. Function: By setting the continuous limiting shell 4, the heating wire and the flexible sleeve can be limited, thereby improving stability.

[0049] Process of Example 2:

[0050] Step S1: Select heating pad 1, heating wire 2, and mold: Heating pad 1 is a flexible pad, and the bottom surface of heating pad 1 is provided with a linear wire mounting groove 101, and the bottom of the wire mounting groove 101 is provided with a linear slot 102; the heating wire 2 is fitted with a linear flexible sleeve 201; the mold is provided with a wiring groove.

[0051] Step S2, wire mounting: First, fasten the heating wire 2 and the continuous limiting shell 4 below the heating wire 2 into the wiring groove of the mold, and then the mold presses the heating wire 2 into the wiring groove 101 of the heating pad.

[0052] Step S3, Hot Melting: The mold heats the flexible sleeve 201 on the heating wire 2 and the wire mounting groove 101 of the heating pad 1 together by hot melting, and the two sides of the continuous limiting shell 4 are heat-melted together with the two sides of the groove 102 respectively.

[0053] Step S4, Demolding: The wiring groove of the mold is disengaged from the continuous limiting shell 4.

[0054] Example 3, see Figures 11-15 Below the slot 102, several spaced-apart limiting shells 5 are provided. These spaced-apart limiting shells 5 are distributed sequentially along the extension direction of the wire mounting slot 101, with gaps between them. The two side edges of each spaced-apart limiting shell 5 are integrally formed with the two side edges of the slot 102 by thermal fusion. The spaced-apart limiting shells 5 provide spaced-apart limiting for the heating wire 2 and the flexible sleeve 201 within the wire mounting slot 101. Function: By setting the spaced-apart limiting shells 5, the heating wire and the flexible sleeve can be limited, improving stability.

[0055] Process of Example 3:

[0056] Step S1: Select heating pad 1, heating wire 2, and mold: Heating pad 1 is a flexible pad, and the bottom surface of heating pad 1 is provided with a linear wire mounting groove 101, and the bottom of the wire mounting groove 101 is provided with a linear slot 102; the heating wire 2 is fitted with a linear flexible sleeve 201; the mold is provided with a wiring groove.

[0057] Step S2, wire mounting: First, fasten the heating wire 2 and the spacer housing 5 below the heating wire 2 into the wiring groove of the mold, and then the mold presses the heating wire 2 into the wiring groove 101 of the heating pad.

[0058] Step S3, Hot Melting: The mold heats the flexible sleeve 201 on the heating wire 2 and the wire mounting groove 101 of the heating pad 1 together by hot melting, and the two sides of the spacer limiting shell 5 are heat-melted together with the two sides of the groove 102 respectively.

[0059] Step S4, Demolding: The wiring groove of the mold is disengaged from the spacer housing 5.

[0060] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A food warmer, comprising a heating pad (1) and a heating wire (2), characterized in that: The heating pad (1) is a flexible pad. The bottom surface of the heating pad (1) is provided with a linear wire mounting groove (101). The bottom of the wire mounting groove (101) is provided with a linear slot (102). A linear flexible sleeve (201) is fitted on the heating wire (2). The heating wire (2) passes through the slot (102) and is inserted into the wire mounting groove (101). The heating wire (2) is distributed sequentially along the extension direction of the wire mounting groove (101). The bottom of the flexible sleeve (201) protrudes downward to the outside of the slot (102). The flexible sleeve (201) and the wire mounting groove (101) are integrally formed by thermal fusion.

2. The food warmer according to claim 1, characterized in that: The heating pad (1) is a silicone pad, and the flexible sleeve (201) is a silicone sleeve.

3. A food warmer according to claim 1, characterized in that: The edge of the slot (102) protrudes downwards more than the bottom surface of the heating pad (1).

4. A food warmer according to claim 1, characterized in that: The bottom surface of the heating pad (1) is also provided with several foot pads (103), and the bottom surface of the foot pads (103) protrudes downward more than the edge of the groove (102).

5. A food warmer according to claim 1, characterized in that: The heating pad (1) is provided with a power supply (3) at its edge, and the two ends of the heating wire (2) are electrically connected to the power supply (3).

6. A food warmer according to claim 1, characterized in that: The cross-section of the wiring groove (101) is arc-shaped or square, and the cross-section of the flexible sleeve (201) is circular.

7. A food warmer according to claim 1, characterized in that: The thickness of the flexible sleeve (201) is ≥2mm, and the outer diameter of the flexible sleeve (201) is ≥5mm.

8. A food warmer according to claim 1, characterized in that: The wiring groove (101) includes several parallel straight segments (1011) and several curved segments (1012), and the straight segments (1011) and the curved segments (1012) are connected.

9. A food warmer according to any one of claims 1 to 8, characterized in that: Below the slot (102) is a continuous limiting shell (4) in the shape of a line. The continuous limiting shell (4) is distributed sequentially along the extension direction of the wire mounting groove (101). The two sides of the continuous limiting shell (4) are heat-fused to the two sides of the slot (102) respectively. The continuous limiting shell (4) continuously limits the heating wire (2) and the flexible sleeve (201) in the wire mounting groove (101).

10. A food warmer according to any one of claims 1 to 8, characterized in that: Several spacer limiting shells (5) are provided below the slot (102). The spacer limiting shells (5) are distributed sequentially along the extension direction of the wire mounting groove (101). There is a gap between the spacer limiting shells (5). The two side edges of the spacer limiting shells (5) are heat-fused integrally with the two side edges of the slot (102). The spacer limiting shells (5) form a spacer limiting for the heating wire (2) and the flexible sleeve (201) in the wire mounting groove (101).