Composite electric heating material ceramic heating body

Abstract

The utility model relates to the technical field of ceramic heating bodies, in particular to a composite electric heating material ceramic heating body which comprises a shell with an opening in the top, a top cover is connected to the top of the shell, heat conducting pieces are installed at the bottom of the top cover and the inner bottom end of the shell, containing grooves are formed in the close ends of the two heat conducting pieces, and a heating piece is arranged in the shell. When the top cover is fixed to the shell, the close faces of the two heat conducting pieces abut against each other, a containing cavity is formed between the two containing grooves, the heating piece is located in the containing cavity, a heat conducting silica gel layer is installed on the inner surface of each containing groove, the outer surface of the heating piece is in contact fit with the heat conducting silica gel layers, and two second conducting pieces are installed at the bottom of the top cover. The heating piece can be buffered and protected through the heat conduction silica gel layer, the elastic conducting strip can make full contact with the second conducting strip through the elasticity of the elastic conducting strip, the ceramic heating body cannot be disconnected when collided, and the use effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic heating body technical field especially relates to a kind of composite electrothermal material ceramic heating body. BACKGROUND

[0002] Ceramic heating body is a kind of high thermal conductivity alumina porcelain as matrix, high new high heat energy heating body made by special process, it is the ceramic heating element that electric energy is converted into heat energy.

[0003] The existing ceramic heating body is generally composed of shell, internal heating sheet and heat-conducting sheet wrapped on the heating sheet, but the internal heating body is easily damaged by vibration and the heating body and the conductive circuit are easily disconnected when the heating body is collided by external objects, and the use effect is poor. And the wiring holder on the existing ceramic heating body is generally connected by screws when connected with power supply wire, but when the power supply wire is fixed in the wiring holder by screws, the contact area between the power supply wire and the conductive element inside the wiring holder is small, and the connection effect is poor. Therefore, we propose a kind of composite electrothermal material ceramic heating body. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above-mentioned shortcomings existing in prior art, and proposes a kind of composite electrothermal material ceramic heating body.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a kind of composite electrothermal material ceramic heating body is designed, including the shell with opening in top, the top of shell is connected with top cover, the bottom of top cover and the inside bottom end of shell are all installed with heat-conducting sheet, the proximal end of two heat-conducting sheets is all set with accommodating slot, the inside of shell is equipped with heating sheet, when top cover is fixed on shell, the proximal face of two heat-conducting sheets is abutted, and accommodating cavity is formed between two accommodating slots, and the heating sheet is located in the accommodating cavity;

[0006] The inner surface of each accommodating slot is installed with heat-conducting silica gel layer, and the outer surface of heating sheet is in contact with heat-conducting silica gel layer;

[0007] Two second conductive sheets are installed on the bottom of top cover, the bottom of second conductive sheet extends to the inside of accommodating slot, and two elastic conductive sheets are installed on the top of heating sheet, when top cover is fixed on shell, the bottom of second conductive sheet is connected with the top of corresponding elastic conductive sheet;

[0008] Two wiring holders are installed on the top of top cover, a first arc-shaped slot is formed above each wiring holder, a power supply wire is arranged in the inside of first arc-shaped slot, and a first conductive sheet is installed on the inner surface of first arc-shaped slot, and the first conductive sheet is electrically connected with second conductive sheet through conductive column;

[0009] The top of each terminal block is provided with a gland, the gland is fixed on the top cover through a connecting mechanism, a second arc-shaped slot is formed in the bottom of the gland, and a third conductive sheet is arranged on the inner surface of the second arc-shaped slot; when the bottom of the gland contacts the top of the terminal block, a containing space is formed between the first conductive sheet and the third conductive sheet, and the power supply wire is located in the containing space.

[0010] Preferably, the elastic conductive sheet is arranged in a U-shaped structure.

[0011] Preferably, when the top cover is fixed on the shell, the elastic conductive sheet is in a compressed state.

[0012] Preferably, the connecting mechanism comprises L-shaped connecting blocks fixed on the two sides of the bottom of the gland; when the bottom of the gland contacts the top of the terminal block, the bottom of the L-shaped connecting block contacts the top of the top cover; and the bottom end of each L-shaped connecting block is fixed on the shell through a fastening bolt.

[0013] Preferably, the size of the containing space formed between the first conductive sheet and the third conductive sheet is smaller than the diameter of the power supply wire.

[0014] Preferably, the heat-conducting sheet is made of heat-conducting ceramic material.

[0015] Preferably, the heating sheet is made of alumina ceramic material.

[0016] Preferably, the top of the top cover is provided with two positioning blocks, one side of each positioning block is fixed on one side of the terminal block, and one end of the gland is in contact with the side surface of the corresponding positioning block.

[0017] The design scheme of the utility model has the advantages that in the application process, the utility model has the advantages that:

[0018] 1. The heat-conducting silicone layer can buffer and protect the heating sheet, and the elasticity of the elastic conductive sheet can be in full contact with the second conductive sheet, so that the ceramic heating body will not be disconnected when being impacted, and the use effect is improved.

[0019] 2. The first arc-shaped slot is formed in the top of the terminal block, and the second arc-shaped slot is formed in the bottom of the gland, so that the contact area of the first conductive sheet, the third conductive sheet and the power supply wire is increased, and the wiring effect is improved. DRAWINGS

[0020] Figure 1 The utility model discloses a structure dispersion diagram;

[0021] Figure 2 The utility model discloses a structure schematic diagram;

[0022] Figure 3 The utility model discloses a terminal block and elastic conductive sheet connecting structure side sectional view;

[0023] Figure 4 The structure diagram of the wire holder and the gland of the utility model.

[0024] In the figure: 1, the shell; 2, the heat conduction sheet; 3, the accommodating groove; 4, the elastic conductive sheet; 5, the heating sheet; 6, the wire holder; 7, the gland; 8, the top cover; 9, the first arc-shaped groove; 10, the positioning block; 11, the heat-conducting silica gel layer; 12, the L-shaped connecting block; 13, the first conductive sheet; 14, the fastening bolt; 15, the second conductive sheet; 16, the second arc-shaped groove; 17, the third conductive sheet. DETAILED DESCRIPTION

[0025] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0026] Referring to Figures 1-4 A composite electric heating material ceramic heating body, including the shell 1 with the opening in the top, the top of the shell 1 is connected with the top cover 8, the bottom of the top cover 8 and the inside bottom end of the shell 1 are all installed with the heat conduction sheet 2, the proximal end of the two heat conduction sheets 2 is all set with the accommodating groove 3, the inside of the shell 1 is equipped with the heating sheet 5, when the top cover 8 is fixed on the shell 1, the proximal face of the two heat conduction sheets 2 abuts, and the accommodating cavity is formed between the two accommodating grooves 3, and the heating sheet 5 is located in the accommodating cavity, so that the heating sheet 5 can be wrapped by the shell 1 and the heat conduction sheet 2, and the heating sheet 5 is protected.

[0027] The heat conduction sheet 2 is made of heat-conducting ceramic material, and the heat conduction sheet 2 can quickly transfer the heat emitted by the heating sheet 5 to the shell 1 and the top cover 8, and then to the external environment through the shell 1 and the top cover 8

[0028] As Figure 1 Each accommodating groove 3 is installed with the heat-conducting silica gel layer 11 on the inner surface, and the outer surface of the heating sheet 5 is in contact with the heat-conducting silica gel layer 11, in the actual use process, the heat-conducting silica gel layer 11 can be in full contact with the surface of the heating sheet 5, when the ceramic heating body is collided by external objects, the heat-conducting silica gel layer 11 can buffer and protect the heating sheet 5, and the heating sheet 5 is avoided from being damaged.

[0029] As Figure 1 and Figure 3Two second conductive sheets 15 are installed at the bottom of the top cover 8, the bottom of the second conductive sheet 15 extends to the inside of the accommodating groove 3, and the top of the heating sheet 5 is provided with two elastic conductive sheets 4, when the top cover 8 is fixed on the shell 1, the bottom of the second conductive sheet 15 is connected with the top of the corresponding elastic conductive sheet 4, the elastic conductive sheet 4 is arranged in a "U" shape structure, and when the top cover 8 is fixed on the shell 1, the elastic conductive sheet 4 is in a compressed state, in actual use, the elastic conductive sheet 4 is in close contact with the second conductive sheet 15 under the elastic action of the elastic conductive sheet 4, so that the elastic conductive sheet 4 will not be separated from the second conductive sheet 15 when the collision occurs, and the connection effect is improved.

[0030] As shown in Figure 2 and Figure 4 The top of the top cover 8 is provided with two wire holders 6, a first arc-shaped groove 9 is formed above each wire holder 6, a power supply wire is arranged in the first arc-shaped groove 9, and a first conductive sheet 13 is arranged on the inner surface of the first arc-shaped groove 9, the first conductive sheet 13 is electrically connected with the second conductive sheet 15 through a conductive column, in actual use, the first arc-shaped groove 9 can increase the connection area of the first conductive sheet 13 and the power supply wire, and the connection effect is improved.

[0031] It should be noted that the heating sheet 5 is made of alumina ceramic material, or other heating materials such as silicon nitride that can convert electrical energy into heat, the power supply can deliver current to the heating sheet 5 through the power supply wire, the first conductive sheet 13 and the second conductive sheet 15, the heating sheet 5 stably converts electrical energy into heat energy, emits a large amount of heat, and transmits the heat to the shell 1 and the top cover 8 through the heat-conducting silica gel layer 11 and the heat-conducting sheet 2, and finally dissipates to the external environment, thereby heating the external environment.

[0032] Figure 4 As shown in the figure, the top of each wire holder 6 is provided with a gland 7, the gland 7 is fixed on the top cover 8 through a connecting mechanism, the specific structure of the connecting mechanism is that the connecting mechanism includes L-shaped connecting blocks 12 fixed on both sides of the bottom of the gland 7, when the bottom of the gland 7 contacts with the top of the wire holder 6, the bottom of the L-shaped connecting block 12 contacts with the top of the top cover 8, and the bottom end of each L-shaped connecting block 12 is fixed on the shell 1 through a fastening bolt 14, in actual use, after the power supply wire is placed in the first arc-shaped groove 9, the worker can cover the gland 7 on the wire holder 6, and then tighten the fastening bolt 14, so that the power supply wire can be fixed, and the fixation is stable.

[0033] As shown in Figure 2 and Figure 4As shown, the bottom of the gland 7 is provided with a second arc-shaped groove 16, and a third conductive sheet 17 is mounted on the inner surface of the second arc-shaped groove 16. When the bottom of the gland 7 contacts the top of the terminal seat 6, a containing space is formed between the first conductive sheet 13 and the third conductive sheet 17, and the power supply wire is located in the containing space. The size of the containing space formed between the first conductive sheet 13 and the third conductive sheet 17 is smaller than the diameter of the power supply wire. Thus, when connected, the gland 7 can extrude the power supply wire, so that the core in the power supply wire can fully contact the first conductive sheet 13 and the third conductive sheet 17, thereby improving the connection effect.

[0034] Specifically, in use, the staff places the heating sheet 5 in the containing groove 3, and then fixes the top cover 8 on the top of the shell 1, so that the second conductive sheet 15 extrudes the elastic conductive sheet 4, and the heating sheet 5 is electrically connected with the second conductive sheet 15. Then, the staff places the end of the power supply wire in the first arc-shaped groove 9 on the top of the terminal seat 6, and then covers the terminal seat 6 with the gland 7 and tightens the fastening bolt 14. The third conductive sheet 17 on the bottom of the gland 7 extrudes the power supply wire, clamps and fixes the power supply wire, and makes the power supply wire fully contact the first conductive sheet 13 and the third conductive sheet 17, thereby improving the connection effect. When the ceramic heating body is collided by external objects, the shell 1 and the top cover 8 can protect the heat-conducting sheet 2 and the heating sheet 5 inside. Then, the heat-conducting sheet 5 is buffered and protected by the heat-conducting silica gel layer 11. At the same time of buffering and protection, the heating sheet 5 will be offset in position. Under the elastic force of the elastic conductive sheet 4, the elastic conductive sheet 4 can compensate the position offset of the heating sheet 5 through deformation, so that the contact between the elastic conductive sheet 4 and the second conductive sheet 15 is not affected, thereby improving the use effect.

[0035] Further, the top of the top cover 8 is provided with two positioning blocks 10, and each positioning block 10 is fixed on one side of the terminal seat 6. One end of the gland 7 is in contact with the side surface of the corresponding positioning block 10. In actual use, the positioning blocks 10 can position the position of the gland 7, thereby reducing the installation difficulty of the gland 7.

[0036] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A composite electrocaloric material ceramic heating element comprising a housing (1) having an opening in the top, characterized in that: The top of the shell (1) is connected with a top cover (8), the bottom of the top cover (8) and the inner bottom end of the shell (1) are both provided with a heat-conducting sheet (2), the proximal ends of the two heat-conducting sheets (2) are both provided with a containing groove (3), the inside of the shell (1) is provided with a heating sheet (5), when the top cover (8) is fixed on the shell (1), the proximal faces of the two heat-conducting sheets (2) abut against each other, and the containing cavity is formed between the two containing grooves (3), and the heating sheet (5) is located in the containing cavity; The inner surface of each containing groove (3) is provided with a heat-conducting silica gel layer (11), and the outer surface of the heating sheet (5) is in contact with the heat-conducting silica gel layer (11). Two second conductive sheets (15) are arranged on the bottom of the top cover (8), the bottom of the second conductive sheet (15) extends into the containing groove (3), and the top of the heating sheet (5) is provided with two elastic conductive sheets (4), when the top cover (8) is fixed on the shell (1), the bottom of the second conductive sheet (15) is connected with the top of the corresponding elastic conductive sheet (4). The top of the top cover (8) is provided with two wire holders (6), the upper side of each wire holder (6) is provided with a first arc-shaped groove (9), the inside of the first arc-shaped groove (9) is provided with a power supply wire, and the inner surface of the first arc-shaped groove (9) is provided with a first conductive sheet (13), and the first conductive sheet (13) is electrically connected with the second conductive sheet (15) through a conductive column. The top of each wire holder (6) is provided with a gland (7), the gland (7) is fixed on the top cover (8) through a connecting mechanism, the bottom of the gland (7) is provided with a second arc-shaped groove (16), the inner surface of the second arc-shaped groove (16) is provided with a third conductive sheet (17), when the bottom of the gland (7) is in contact with the top of the wire holder (6), the containing space is formed between the first conductive sheet (13) and the third conductive sheet (17), and the power supply wire is located in the containing space.

2. The composite electrocaloric material ceramic heater of claim 1, wherein: The elastic conductive sheet (4) is arranged in a "U" shape.

3. The composite electrocaloric material ceramic heater of claim 2, wherein: When the top cover (8) is fixed on the shell (1), the elastic conductive sheet (4) is in a compressed state.

4. The composite electrocaloric material ceramic heater of claim 1, wherein: The connecting mechanism comprises L-shaped connecting blocks (12) fixed on the bottom of the gland (7) on both sides, when the bottom of the gland (7) is in contact with the top of the wire holder (6), the bottom of the L-shaped connecting block (12) is in contact with the top of the top cover (8), and the bottom end of each L-shaped connecting block (12) is fixed on the shell (1) through a fastening bolt (14).

5. The composite electrocaloric material ceramic heater of claim 4, wherein: The size of the containing space formed between the first conductive sheet (13) and the third conductive sheet (17) is smaller than the diameter of the power supply wire.

6. The composite electrocaloric material ceramic heater of claim 1, wherein: The heat-conducting sheet (2) is made of heat-conducting ceramic material.

7. The composite electrocaloric material ceramic heater of claim 1, wherein: The heating sheet (5) is made of alumina ceramic material.

8. The composite electrocaloric material ceramic heater of claim 1, wherein: The top of the top cover (8) is provided with two positioning blocks (10), one side of each positioning block (10) is fixed on one side of the wire holder (6), and one end of the gland (7) is in contact with the side surface of the corresponding positioning block (10).

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