CN211481517U - Flexible heating plate - Google Patents

Abstract

A flexible heat patch, comprising: the carbon paste heat insulation structure comprises a substrate layer, a carbon paste conductive layer, a silver paste electrode layer, a lead layer, an insulation layer and a heat insulation layer; the bottom of the carbon paste conducting layer is arranged on the upper surface of the base material layer; the bottom of the silver paste electrode layer is arranged on the upper surface of the carbon paste conducting layer; the bottom of the lead layer is arranged on the upper surface of the silver paste electrode layer; the bottom of the insulating layer is arranged on the upper surface of the lead layer; the bottom of the heat preservation layer is arranged on the upper surface of the insulation layer. The flexible heating sheet is characterized in that a substrate layer, a carbon paste conducting layer, a silver paste electrode layer, a lead layer, an insulating layer and a heat insulating layer are matched; through the cooperation between the layer, adopt the mode that the face generates heat to effectively increase the area that generates heat, the temperature that generates heat of carbon thick liquid conducting layer each point is even, can realize the steady heating in the short time to realize that good use is felt.

Description

A flexible heating sheet

technical field

The utility model relates to the technical field of heating sheets, in particular to a flexible heating sheet.

Background technique

Existing heating sheets mainly use metal heating wires to generate heat, which are mostly used on seat cushions or bases, such as beds, operating tables, carpets and other application environments. However, the existing heating wire is easy to be oxidized and has a short life. The heating wire has a foreign body feeling, which leads to poor flexibility, small heating area and large heat transfer loss, resulting in low heat conversion efficiency and uneven temperature. Users feel the need for heating The longer waiting time, the heating method of the heating material is not too comfortable for the user.

Utility model content

The purpose of this utility model is to propose a flexible heating sheet, which is a combination of a base material layer, a carbon paste conductive layer, a silver paste electrode layer, a lead layer, an insulating layer and a thermal insulation layer.

For this purpose, the utility model adopts the following technical solutions:

A flexible heating sheet, comprising: a base material layer, a carbon paste conductive layer, a silver paste electrode layer, a lead layer, an insulating layer and a thermal insulation layer;

The bottom of the carbon paste conductive layer is set on the upper surface of the base material layer; the bottom of the silver paste electrode layer is set on the upper surface of the carbon paste conductive layer; the bottom of the lead layer is set on the silver paste the upper surface of the paste electrode layer; the bottom of the insulating layer is arranged on the upper surface of the lead layer; the bottom of the insulating layer is arranged on the upper surface of the insulating layer.

To further illustrate, the silver paste electrode layer includes: a silver paste positive electrode block, a silver paste negative electrode block and a horizontal conductive block;

The silver paste positive block and the silver paste negative block are arranged on the upper surface of the carbon paste conductive layer; one end of the horizontal conductive block is connected to both the silver paste positive block and the silver paste negative block One, the other end forms a gap with the other of the two; the two horizontal conductive blocks in adjacent positions form a conductive unit with the silver paste positive block and the silver paste negative block on both sides.

To further illustrate, in the conductive unit, one of the horizontal conductive blocks and the silver paste positive block forms a first gap, and the other horizontal conductive block and the silver paste negative block form a second gap; the The first gap is located on the opposite side of the second gap.

To further illustrate, the number of the conductive units is at least two.

To further illustrate, the lead layer is a copper foil layer.

To further illustrate, the lead layer includes: a lead positive electrode and a lead negative electrode;

The lead positive electrode is in contact with the silver paste positive electrode block; the lead negative electrode is in contact with the silver paste negative electrode block.

To further illustrate, the lead layer further includes: a lead level block; the lead level block is in contact with the horizontal conductive block;

The lead positive electrode, the lead negative electrode and the lead horizontal block are distributed according to the conductive units, and lead units are formed at the positions of the respective conductive units.

To further illustrate, the thermal insulation layer is thermal insulation cloth.

Further description, also includes: reflective film;

The bottom of the reflective film is arranged on the upper surface of the thermal insulation layer.

To further illustrate, the insulating layer includes: an EVA adhesive film layer or an insulating ink layer.

The beneficial effects of the present utility model:

The flexible heating sheet can effectively increase the heating area by matching the base material layer, the carbon paste conductive layer, the silver paste electrode layer, the lead layer, the insulating layer and the thermal insulation layer; The heating temperature of each point of the paste conductive layer is uniform, which can achieve stable heating in a short time, so as to achieve a good feeling of use.

Description of drawings

Fig. 1 is the structural representation of flexible heating sheet;

2 is a schematic structural diagram of a silver paste electrode layer attached with a carbon paste conductive layer;

3 is a schematic structural diagram of a silver paste electrode layer;

Fig. 4 is the structural representation of lead unit;

5 is a schematic structural diagram of a lead unit with the same layout as the conductive unit;

Fig. 6 is a parallel circuit with the number of conductive units being 5;

in:

Base material layer 1, carbon paste conductive layer 2, silver paste electrode layer 3, lead layer 4, insulating layer 5, thermal insulation layer 6, reflective film 7;

Silver paste positive block 31, silver paste negative block 32, horizontal conductive block 33, conductive unit 34;

Lead positive electrode 41, lead negative electrode 42, lead horizontal block 43;

The first gap 351 and the second gap 352 .

Detailed ways

The technical solutions of the present utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

A flexible heating sheet, comprising: a base material layer 1, a carbon paste conductive layer 2, a silver paste electrode layer 3, a lead layer 4, an insulating layer 5 and a thermal insulation layer 6;

The bottom of the carbon paste conductive layer 2 is set on the upper surface of the base material layer 1; the bottom of the silver paste electrode layer 3 is set on the upper surface of the carbon paste conductive layer 2; the bottom of the lead layer 4 It is arranged on the upper surface of the silver paste electrode layer 3 ; the bottom of the insulating layer 5 is arranged on the upper surface of the lead layer 4 ; the bottom of the insulating layer 6 is arranged on the upper surface of the insulating layer 5 .

It is further explained that the flexible heating sheet is matched with the base material layer 1, the carbon paste conductive layer 2, the silver paste electrode layer 3, the lead layer 4, the insulating layer 5 and the thermal insulation layer 6; The heating method effectively increases the heating area, and the heating temperature of each point of the carbon paste conductive layer 2 is uniform, which can achieve stable heating in a short time, so as to achieve a good feeling of use.

The base material layer 1 is used to carry various functional layers. Generally, the existing base material layer 1 is used. Soft effect.

The carbon paste conductive layer 2 and the silver paste electrode layer 3 are both used for electrical conduction. Only by connecting the power supply to the silver paste electrode layer 3 and the lead layer 4, the current can pass through the silver paste electrode layer 3 and the carbon paste conductive layer 2. , to achieve the effect of heating on the surface of the carbon paste conductive layer 2 .

The lead layer 4 is used to connect the wires, and the power source 001 is used to generate current. The current can flow from the power source through the lead layer 4 through the silver paste electrode layer 3 and then generate heat on the carbon paste conductive layer 2 .

The insulating layer 5 is used to protect the conductive structure inside the heating plate, prevent the electrode from leaking out, and affect the conductive efficiency; at the same time, it also has the effect of protecting the internal conductive structure.

The thermal insulation layer 6 is a well-known thermal insulation material, which can better store the heat generated after the conductive structure passes through, prevent the heat from dispersing, and affect the heating effect.

To further illustrate, the silver paste electrode layer 3 includes: a silver paste positive electrode block 31, a silver paste negative electrode block 32 and a horizontal conductive block 33;

The silver paste positive block 31 and the silver paste negative block 32 are arranged on the upper surface of the carbon paste conductive layer 2; one end of the horizontal conductive block 33 is connected to the silver paste positive block 31 and the silver paste One of the two negative blocks 32, and the other end forms a gap with the other of the two; the two horizontal conductive blocks 33 adjacent to each other, and the silver paste positive blocks 31 on both sides and the The silver paste anode block 32 forms the conductive unit 34 .

To further illustrate, the silver paste positive block 31, the silver paste negative block 32 and the horizontal conductive block 33 form the conductive unit 34; the silver paste positive block 31 arranged in the first conductive unit 34 is connected to the positive electrode of the power supply through the lead layer 4, The silver paste negative block 32 is connected to the negative electrode of the power supply through the lead layer 4; the current will start from the positive electrode of the power supply, flow through several conductive units 34, and return to the negative electrode of the power supply; the current will move along the horizontal conductive block 33. The carbon paste conductive layer 2 other than the horizontal conductive block 33 moves, and returns to the negative electrode of the power supply through the silver paste negative electrode block 32; therefore, the current will pass through the surface of the carbon paste conductive layer 2, so that the upper surface of the carbon paste conductive layer 2 is heated; In this structure, the current flow can be maximized;

It should be noted that one end of the horizontal conductive block 33 is connected to one of the silver paste positive electrode block 31 or the silver paste negative electrode block 32, and the other end forms a gap with the other of the two. The gap needs to be reserved, because if the gap is not reserved, the circuit will be short-circuited, the heating efficiency will be poor, the conduction of the plurality of conductive units 34 cannot be conducted, and the power supply will be easily damaged.

To further illustrate, in the conductive units 34 , one of the horizontal conductive blocks 33 and the silver paste positive block 31 form a first gap 351 , and the other horizontal conductive block 33 and the silver paste negative block 32 form a first gap 351 . The second gap 352 ; the first gap 351 is located on the opposite side of the second gap 352 .

3, in the conductive unit 34a in the silver paste electrode layer 3, the left end of the upper horizontal conductive block 33 is connected to the silver paste positive electrode block 31, and the right end forms a first gap 351 with the silver paste negative electrode block 32; The left end of the block 33 forms a second gap 352 with the silver paste negative electrode block 32, and the right end is connected with the silver paste negative electrode block 32; the first gap 351 and the second gap 352 are on opposite sides; thus forming a complete conductive unit 34a, in this In the conductive unit 34a, the current flows into the upper horizontal conductive block 33 through the silver paste positive block 31, and in the process of moving along the horizontal conductive block 33, it will move upward (omitted in the figure) to the upper or lower horizontal conductive block 33, And move along the negative electrode block 32 of the silver paste and return to the negative electrode of the power supply. During this process, it will pass through the large area of the carbon paste conductive layer 2 to make the carbon paste conductive layer 2 generate heat, which will produce a more stable and heating effect in the process of current transmission. Better, larger heat generation area.

To further illustrate, the number of the conductive units 34 is at least two.

The conductive units 34 and the conductive units 34 are connected in parallel, that is, each conductive unit 34 is equivalent to a circuit, and a plurality of conductive units 34 are connected in parallel; for example, when the number of conductive units 34 is 5, it will form as shown in the figure. A circuit of 6; and because in a parallel circuit, the total resistance is less than the sum of the individual resistances, and the heat will increase under the condition of a certain voltage. At the same time, multiple flexible heating sheets can work in series or in parallel, depending on the resistance and heat required in the working process.

To further illustrate, the lead layer 4 is a copper foil layer.

The copper foil layer has good electrical conductivity and can well transmit the current to the conductive unit 34 to make the carbon paste conductive layer 2 generate heat.

To further illustrate, the lead layer 4 includes: a lead positive electrode 41 and a lead negative electrode 42;

The lead positive electrode 41 is in contact with the silver paste positive electrode block 31 ; the lead negative electrode 42 is in contact with the silver paste negative electrode block 32 .

The lead positive electrode 41 and the lead negative electrode 42 are similar to wires, and are used to transmit the current of the power source to the corresponding silver paste positive electrode block 31 and silver paste negative electrode block 32, so that the carbon paste conductive layer 2 has current passing through, and the effect of heating is achieved. As shown in the copper foil in Figure 4, when a single lead unit maintains center symmetry, it can fully cooperate with the silver paste electrode layer 3, so that the potential of the lead positive electrode 41 and the lead negative electrode 42 has no interference, that is, when the potential is constant, Only then can the heating of the heating plate be stable.

To further illustrate, the lead layer 4 further includes: a lead level block 43; the lead level block 43 is in contact with the horizontal conductive block 33;

The lead positive electrode 41 , the lead negative electrode 42 and the lead horizontal block 43 are distributed according to the conductive units 34 , and lead units 44 are formed at the positions of the conductive units 34 .

As shown in FIG. 5, the electrodes are symmetrically arranged, and the silver paste electrode layer 3 has 5 conductive units 34. Here, a lead unit 43, a lead positive electrode 41, a lead negative electrode 42 and a lead horizontal block 43 can be added. 44 has the same layout as the conductive unit 34, so that the potential of the conductive unit 34 can be guaranteed to be stable.

To further illustrate, the thermal insulation layer 6 is thermal insulation cloth.

The thermal insulation layer 6 is an existing thermal insulation fabric, which is preferably a hollow and soft thermal insulation fabric. The hollow thermal insulation fabric can effectively preserve heat through the internal hollow structure and prevent the internal environment from contacting the outside; at the same time, the soft thermal insulation fabric It can provide softness, which can make the heating sheet have a soft feeling.

To further illustrate, it also includes: a reflective film 7;

The bottom of the reflective film 7 is disposed on the upper surface of the thermal insulation layer 6 .

The reflective film 7 is sputtered with a layer of nano-scale material on the transparent polyester film to reflect infrared rays to achieve the purpose of heat insulation, and to prevent the external environment from having an excessive influence on the temperature inside the heating plate and destroying the heating law of the heating plate.

To further illustrate, the insulating layer 5 includes: an EVA adhesive film layer or an insulating ink layer.

The EVA film layer has an insulating effect, which can effectively protect the conductive structure in the heating plate, prevent the conductive structure from contacting with external substances, and ensure the stability of heating. The use of insulating ink layer with insulating properties can effectively improve the processing effect. After the ink is cured and dried, an insulating layer 5 will be formed on the surface of the lead layer 4, which has good adhesion and strong holding ability.

In the description of the present invention, it should be understood that the terms "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", The orientation or positional relationship indicated by "outside" and "side" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have The particular orientation, construction and operation in the particular orientation are therefore not to be construed as limitations of the present invention.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will fall within the protection scope of the present invention.

Claims (10)

1. A flexible heating sheet, characterized in that, comprising: a base material layer, a carbon paste conductive layer, a silver paste electrode layer, a lead layer, an insulating layer and a thermal insulation layer; The bottom of the carbon paste conductive layer is set on the upper surface of the base material layer; the bottom of the silver paste electrode layer is set on the upper surface of the carbon paste conductive layer; the bottom of the lead layer is set on the silver paste the upper surface of the paste electrode layer; the bottom of the insulating layer is arranged on the upper surface of the lead layer; the bottom of the insulating layer is arranged on the upper surface of the insulating layer. 2 . The flexible heating sheet according to claim 1 , wherein the silver paste electrode layer comprises: a silver paste positive electrode block, a silver paste negative electrode block and a horizontal conductive block; 2 . The silver paste positive block and the silver paste negative block are arranged on the upper surface of the carbon paste conductive layer; one end of the horizontal conductive block is connected to both the silver paste positive block and the silver paste negative block One, the other end forms a gap with the other of the two; the two horizontal conductive blocks in adjacent positions form a conductive unit with the silver paste positive block and the silver paste negative block on both sides. 3 . The flexible heating sheet according to claim 2 , wherein, in the conductive unit, one of the horizontal conductive blocks and the silver paste positive block forms a first gap, and the other horizontal conductive block forms a first gap. 4 . The block and the silver paste anode block form a second gap; the first gap is located on the opposite side of the second gap. 4 . The flexible heating sheet according to claim 3 , wherein the number of the conductive units is at least two. 5 . 5 . The flexible heating sheet according to claim 1 , wherein the lead layer is a copper foil layer. 6 . 6 . The flexible heating sheet according to claim 2 , wherein the lead layer comprises: a lead positive electrode and a lead negative electrode; 6 . The lead positive electrode is in contact with the silver paste positive electrode block; the lead negative electrode is in contact with the silver paste negative electrode block. 7 . The flexible heating sheet according to claim 6 , wherein the lead layer further comprises: a lead level block; the lead level block is in contact with the horizontal conductive block; 8 . The lead positive electrode, the lead negative electrode and the lead horizontal block are distributed according to the conductive units, and lead units are formed at the positions of the respective conductive units. 8 . The flexible heating sheet according to claim 1 , wherein the thermal insulation layer is thermal insulation cloth. 9 . 9 . The flexible heating sheet according to claim 1 , further comprising: a reflective film; 10 . The bottom of the reflective film is arranged on the upper surface of the thermal insulation layer. 10 . The flexible heating sheet according to claim 1 , wherein the insulating layer comprises: an EVA adhesive film layer or an insulating ink layer. 11 .

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