Composite metal heating plate

Abstract

The utility model relates to the technical field of metal heating plates, and discloses a composite metal heating plate, which comprises an aluminum silicate bottom box, a nickel chrome wire is arranged in the aluminum silicate bottom box, a heat pipe is arranged at the upper end of the nickel chrome wire, and the heat pipe is fixedly connected with the nickel chrome wire; and the heat conduction pad is arranged at the upper end of the heat pipe, a silicon nitride ceramic top cover is arranged at the upper end of the heat conduction pad, and the silicon nitride ceramic top cover is fixedly connected with the aluminum silicate bottom box. The heat conduction uniformity is improved by adding the heat pipe at the upper end of the nickel chrome wire, and the heating uniformity of the top cover is further improved by the heat conduction pad.

Description

Technical Field

[0001] The utility model relates to the technical field of metal heating plates, in particular to a composite metal heating plate. Background Art

[0002] The metal heating plate is a component that uses electric current to generate resistance heat through a metal conductor to achieve heating. It is usually made of metal material, has good thermal conductivity and mechanical strength, and is suitable for various heating needs. The working principle of the metal heating plate is based on Joule's law, that is, when current passes through a conductor, heat is generated, and the amount of heat is proportional to the square of the current, the resistance of the conductor and the power-on time. Therefore, by controlling the current size and power-on time, the heating power and temperature of the metal heating plate can be adjusted.

[0003] The heating element inside the common metal heating plate is a nickel-chromium wire. The nickel-chromium wire generates heat and transfers it to the metal plate, making the entire metal plate hot. However, direct heat conduction to the metal plate through the nickel-chromium wire will make the heating uneven due to laying density and gap problems. Therefore, a composite metal heating plate is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a composite metal heating plate to solve the problem of uneven heating of the prior metal heating plate mentioned in the above background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a composite metal heating plate, comprising:

[0008] An aluminum silicate bottom box, wherein a nickel-chromium wire is arranged inside the aluminum silicate bottom box, a heat pipe is arranged at the upper end of the nickel-chromium wire, and the heat pipe is fixedly connected to the nickel-chromium wire;

[0009] The thermal pad is arranged at the upper end of the heat pipe. The upper end of the thermal pad is provided with a silicon nitride ceramic top cover, and the silicon nitride ceramic top cover is fixedly connected to the aluminum silicate bottom box.

[0010] Preferably, the lower end of the nickel-chromium wire is located inside the aluminum silicate bottom box and an aluminum foil is provided therein, and the aluminum foil is fixedly connected to the aluminum silicate bottom box, and the aluminum foil is used to reflect heat upward.

[0011] Preferably, a second support column is provided at a middle position inside the aluminum silicate bottom box, and the second support column is fixedly connected to the aluminum silicate bottom box, and the second support column plays a role in supporting the silicon nitride ceramic top cover.

[0012] Preferably, four first support columns distributed in a rectangular array are installed outside the second support column inside the aluminum silicate bottom box, and the first support columns are fixedly connected to the aluminum silicate bottom box, and the first support columns serve to support the silicon nitride ceramic top cover.

[0013] Preferably, side blocks are installed at both front and rear ends of the left and right sides of the exterior of the aluminum silicate bottom box, and the side blocks are fixedly connected to the aluminum silicate bottom box. Adjustment screws are installed inside the side blocks through threaded cooperation, and the adjustment screws are rotated to lift and lower.

[0014] Preferably, a fixed vertical plate is provided at the upper end of the adjusting screw, and the fixed vertical plate is fixedly connected to the adjusting screw, and a support plate is provided at the lower end of the adjusting screw located at the lower end of the side block, and the fixed vertical plate makes it easy to manually rotate the adjusting screw.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a composite metal heating plate having the following

[0017] Beneficial effects:

[0018] The utility model generates heat through nickel-chromium wire, and the heat of the nickel-chromium wire is transferred through a heat pipe. The heat pipe has good heat transfer efficiency and heat capacity. The heat is transferred to a thermal pad through the heat pipe. The thermal pad is laid on the upper end of the heat pipe. The gap between the heat pipe and the silicon nitride ceramic top cover is filled by the soft property of the thermal pad. Combined with the excellent thermal conductivity of the thermal pad, the heat generated by the nickel-chromium wire is evenly transferred to the silicon nitride ceramic top cover. In this way, the metal heating plate heats evenly, solving the problems raised in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the internal structure of the aluminum silicate bottom box of the utility model in a separated state;

[0021] Figure 3 It is a cross-sectional view of the side block structure of the utility model.

[0022] In the figure: 1. Aluminum silicate bottom box; 2. Aluminum foil; 3. Nickel-chromium wire; 4. First support column; 5. Second support column; 6. Heat pipe; 7. Thermal pad; 8. Silicon nitride ceramic top cover; 9. Side block; 10. Support plate; 11. Adjustment screw; 12. Fixed vertical plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model provides a technical solution, a composite metal heating plate, please refer to Figure 1 , Figure 2 and Figure 3 ,include:

[0025] An aluminum silicate bottom box 1, wherein a nickel-chromium wire 3 is arranged inside the aluminum silicate bottom box 1, a heat pipe 6 is arranged at the upper end of the nickel-chromium wire 3, and the heat pipe 6 is fixedly connected to the nickel-chromium wire 3;

[0026] The thermal pad 7 is arranged at the upper end of the heat pipe 6. A silicon nitride ceramic top cover 8 is arranged at the upper end of the thermal pad 7. The silicon nitride ceramic top cover 8 is fixedly connected to the aluminum silicate bottom box 1. Insulating material can be arranged between the nickel-chromium wire 3 and the heat pipe 6.

[0027] See also Figure 2 The lower end of the nickel-chromium wire 3 is located inside the aluminum silicate bottom box 1, and an aluminum foil 2 is arranged therein. The aluminum foil 2 is fixedly connected to the aluminum silicate bottom box 1, and the aluminum foil 2 is used to reflect heat upward.

[0028] See also Figure 2 A second support column 5 is provided at the middle position inside the aluminum silicate bottom box 1 , and the second support column 5 is fixedly connected to the aluminum silicate bottom box 1 , and the second support column 5 plays the role of supporting the silicon nitride ceramic top cover 8 .

[0029] See also Figure 2 Four first support columns 4 distributed in a rectangular array are installed inside the aluminum silicate bottom box 1 and outside the second support column 5, and the first support column 4 is fixedly connected to the aluminum silicate bottom box 1, and the first support column 4 plays the role of supporting the silicon nitride ceramic top cover 8.

[0030] See also Figure 3 Side blocks 9 are installed at both ends of the front and rear sides of the left and right sides of the outside of the aluminum silicate bottom box 1, and the side blocks 9 are fixedly connected to the aluminum silicate bottom box 1. An adjusting screw 11 is installed inside the side block 9 through threaded cooperation, and the adjusting screw 11 is rotated to lift and lower.

[0031] See also Figure 3A fixed vertical plate 12 is provided at the upper end of the adjusting screw 11, and the fixed vertical plate 12 is fixedly connected to the adjusting screw 11. A supporting plate 10 is provided at the lower end of the adjusting screw 11 at the lower end of the side block 9. The supporting plate 10 plays a supporting role, and the fixed vertical plate 12 makes it easy to manually rotate the adjusting screw 11.

[0032] In this solution, the nickel-chromium wire 3 generates heat, and the heat of the nickel-chromium wire 3 is transferred through the heat pipe 6. The heat pipe 6 has good heat transfer efficiency and heat capacity. The heat is transferred to the thermal pad 7 through the heat pipe 6. The thermal pad 7 is laid on the upper end of the heat pipe 6. The gap between the heat pipe 6 and the silicon nitride ceramic top cover 8 is filled by the soft property of the thermal pad 7. Combined with the excellent thermal conductivity of the thermal pad 7, the heat generated by the nickel-chromium wire 3 is evenly transferred to the silicon nitride ceramic top cover 8. In this way, the metal heating plate is heated evenly. The heat generated by the nickel-chromium wire 3 is reflected by the aluminum foil 2 to increase the heat of the metal heating plate. When the placement surface of the metal heating plate is not flat enough, the fixed vertical plate 12 is rotated to rotate the adjusting screw 11. The adjusting screw 11 and the side block 9 convert the rotational motion of the adjusting screw 11 into linear motion under the threaded cooperation, so that the support plate 10 is raised and lowered, the support height is changed, and it adapts to the uneven placement surface.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. 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 these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite metal heating plate, characterized in that: include: An aluminum silicate bottom box (1), wherein a nickel-chromium wire (3) is arranged inside the aluminum silicate bottom box (1), a heat pipe (6) is arranged at the upper end of the nickel-chromium wire (3), and the heat pipe (6) is fixedly connected to the nickel-chromium wire (3); A thermal pad (7) is arranged at the upper end of the heat pipe (6); a silicon nitride ceramic top cover (8) is arranged at the upper end of the thermal pad (7), and the silicon nitride ceramic top cover (8) is fixedly connected to the aluminum silicate bottom box (1).

2. A composite metal heating plate according to claim 1, characterized in that: The lower end of the nickel-chromium wire (3) is located inside the aluminum silicate bottom box (1), and an aluminum foil (2) is arranged therein, and the aluminum foil (2) is fixedly connected to the aluminum silicate bottom box (1).

3. The composite metal heating plate according to claim 1, characterized in that: A second support column (5) is provided at a middle position inside the aluminum silicate bottom box (1), and the second support column (5) is fixedly connected to the aluminum silicate bottom box (1).

4. A composite metal heating plate according to claim 3, characterized in that: Four first support columns (4) distributed in a rectangular array are installed outside the second support column (5) inside the aluminum silicate bottom box (1), and the first support columns (4) are fixedly connected to the aluminum silicate bottom box (1).

5. The composite metal heating plate according to claim 1, characterized in that: Side blocks (9) are installed at both the front and rear ends of the left and right sides of the exterior of the aluminum silicate bottom box (1), and the side blocks (9) are fixedly connected to the aluminum silicate bottom box (1). An adjusting screw (11) is installed inside the side blocks (9) through threaded engagement.

6. The composite metal heating plate according to claim 5, characterized in that: The upper end of the adjusting screw (11) is provided with a fixed vertical plate (12), and the fixed vertical plate (12) is fixedly connected to the adjusting screw (11), and the lower end of the adjusting screw (11) is provided with a supporting plate (10) at the lower end of the side block (9).

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