CN210225780U

CN210225780U - Electric heating plate

Info

Publication number: CN210225780U
Application number: CN201921071675.XU
Authority: CN
Inventors: Jian Zhao; 赵健
Original assignee: Shanghai Changqing Industrial Co ltd
Current assignee: Shanghai Changqing Industrial Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-03-31
Anticipated expiration: 2029-07-09

Abstract

The utility model relates to a heating plate technical field discloses an electric heating plate, including fixed connection's first tectorial membrane layer in proper order, first glutinous layer that glues, electrically conductive portion of generating heat, second glue glutinous layer, second tectorial membrane layer, electrically conductive portion of generating heat is provided with two wiring ends, the wiring end is seted up the guide slot that matches with the wire, the wire is close to one side of wiring end and is inlayed with the welding and establish and fix in the guide slot, the wire crosses the stable convenient fixed of welding and inlays to establish and fix in the guide slot, reduce the wire and glue the condition that forms the space between the portion of generating heat at first glutinous layer and wire, the leakproofness has been promoted, the fixed area of connection has been promoted, and then the fixed stability of wire is increased.

Description

Electric heating plate

Technical Field

The utility model relates to a heating plate technical field, more specifically say, it relates to an electric heating plate.

Background

An electric heating sheet is a device which utilizes the heat effect of current to heat. Generally, a conductive portion for heating by energization is provided, and a conductive wire for forming a conductive loop is provided at both ends of the conductive portion.

After the conductive wire is electrically connected and fixed with the conductive part, the conductive part and the cover are pressed and fixed by using an insulating coating film for insulation treatment. However, since the wires are generally thick, the insulating coating cannot fill the gaps between the wires, and thus, it is easy for external conductive substances to enter, and the connection between the wires and the conductive portion is unstable and easily comes off.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide an electric heating plate, which has the advantages of difficult falling of the wire and high structural strength.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

an electric heating sheet comprises a first film covering layer, a first adhesive layer, a conductive heating part, a second adhesive layer and a second film covering layer which are fixedly connected in sequence, wherein the conductive heating part is provided with two wiring ends;

the wiring end is provided with a guide groove matched with the lead, and one side of the lead close to the wiring end is embedded and fixed in the guide groove in a welding mode.

Through above-mentioned technical scheme, the wire is crossed the stable convenient fixed of welding and is inlayed and establish and fix in the guide slot, reduces the wire and glues the condition that forms the space between the layer and the wire portion of generating heat at first, has promoted the leakproofness, has promoted the fixed area of connection, and then increases the fixed stability of wire.

The utility model discloses further set up to: the conducting wire comprises a conducting part and an insulating layer sleeved and fixed on the conducting part;

one end of the conductive part, which is close to the wiring end, is fixedly connected with a reinforcing strip vertical to the length direction of the conductive part, and a reinforcing groove matched with the reinforcing strip is formed in the guide groove.

Through above-mentioned technical scheme, the fixed embedding of reinforcement strip and reinforcing groove is established and can be when guaranteeing the leakproofness, promotes the tensile of wire and drags the ability, increases the intensity and the stability of structure.

The utility model discloses further set up to: the conductive part extends out of the insulating layer, and a reinforcing piece is fixedly arranged at one end of the conductive part, which is far away from the wiring terminal;

the reinforcing piece is wrapped and fixedly connected on the conductive part;

the outer side face, far away from the conductive part, of the reinforcing piece is fixedly connected with the first adhesive layer and the conductive heating part.

Through above-mentioned technical scheme, can strengthen the leakproofness between first sticky layer and the wire heating portion.

The utility model discloses further set up to: the two sides of the reinforcing piece are symmetrically provided with guide convex pieces.

The utility model discloses further set up to: and one side of the reinforcing member, which is far away from the conductive heating part, is provided with a reinforcing groove.

Through above-mentioned technical scheme, can realize stable being connected between reinforcing groove and the first glutinous layer that glues, promote the tensile of wire and drag the ability.

The utility model discloses further set up to: the first and second coating layers are both polyimide layers.

The utility model discloses further set up to: the conductive heating part is an S-shaped conductive copper strip.

Compared with the prior art, the beneficial effects of the utility model are that:

through crossing the stable convenient fixed the inlaying of welding with the wire and establishing and fix in the guide slot, reduce the wire and glue the condition that forms the space between layer and the wire portion of generating heat at first, promoted the leakproofness, promoted the fixed area of connection, and then increase the fixed stability of wire.

Drawings

Fig. 1 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 2 is a partial schematic structural diagram of an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a cross-sectional view of a reinforcement member according to an embodiment of the present invention.

Reference numerals: 1. a first coating layer; 2. a first adhesive layer; 3. a conductive heating part; 31. a guide groove; 32. a reinforcing groove; 4. a second adhesive layer; 5. a second coating layer; 6. a wire; 61. a conductive portion; 62. an insulating layer; 63. reinforcing the strips; 7. a reinforcement; 71. a guide projection; 72. and a reinforcing groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

An electric heating plate, as shown in fig. 1, comprises a first film covering layer 1, a first adhesive layer 2, a conductive heating portion 3, a second adhesive layer 4, and a second film covering layer 5, which are fixedly connected in sequence, wherein the first film covering layer 1 and the second film covering layer 5 are polyimide layers, and the conductive heating portion 3 is an S-shaped conductive copper strip. Referring to fig. 2 and 3, the conductive heat generating portion 3 has two terminals, the terminals are provided with a guide groove 31 matching with the conductive wire 6, and one side of the conductive wire 6 close to the terminals is embedded and fixed in the guide groove 31 by welding.

Can inlay earlier wire 6 and establish and fix in guide slot 31, make both stable fixed shaping through the welded mode, reduce wire 6 and glue the condition that layer 2 and wire 6 generate heat and form the space between the portion at a distance from each other, promote the leakproofness, promote the fixed area of connection, and then increase the fixed stability of wire 6.

As shown in fig. 3, the lead 6 includes a conductive portion 61 and an insulating layer 62 fitted and fixed on the conductive portion 61. The conductive part 61 is a conductive copper wire having a circular cross-section, and the insulating layer 62 is a rubber insulating skin covering the conductive copper wire. One end of the conductive part 61 close to the terminal is fixedly connected with a reinforcing strip 63 vertical to the length direction of the conductive part, and a reinforcing groove 32 matched with the reinforcing strip 63 is formed in the guide groove 31. The reinforcing strip 63 is fixedly embedded in the reinforcing groove 32, so that the sealing performance is ensured, the tensile pulling resistance of the lead 6 is improved, and the strength and the stability of the structure are improved.

As shown in fig. 3 and 4, the conductive portion 61 extends out of the insulating layer 62, a reinforcing member 7 is fixedly disposed at an end of the conductive portion 61 away from the terminal, the reinforcing member 7 (see fig. 5) is in a ring shape, and is wrapped and fixedly connected to the conductive portion 61, and an outer side surface of the reinforcing member 7 away from the conductive portion 61 is fixedly connected to the first adhesive layer 2 and the conductive heat-generating portion 3, so that the sealing property between the first adhesive layer 2 and the heat-generating portion of the lead 6 can be enhanced.

As shown in fig. 5, the two sides of the reinforcing member 7 are symmetrically provided with guiding protrusions 71, and a reinforcing groove 72 is formed on one side of the reinforcing member away from the conductive heat generating portion 3, so that a stable connection can be achieved between the reinforcing groove 72 and the first adhesive layer 2, and the pulling resistance of the lead 6 is improved.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An electric heating sheet is characterized by comprising a first film coating layer (1), a first adhesive layer (2), a conductive heating part (3), a second adhesive layer (4) and a second film coating layer (5) which are fixedly connected in sequence, wherein the conductive heating part (3) is provided with two wiring ends;

the wiring end is provided with a guide groove (31) matched with the lead (6), and one side of the lead (6) close to the wiring end is embedded and fixed in the guide groove (31) in a welding mode.

2. An electric heating plate according to claim 1, wherein the lead wire (6) comprises a conductive portion (61) and an insulating layer (62) fitted over and fixed to the conductive portion (61);

one end of the conductive part (61) close to the wiring end is fixedly connected with a reinforcing strip (63) vertical to the length direction of the conductive part, and a reinforcing groove (32) matched with the reinforcing strip (63) is formed in the guide groove (31).

3. An electric heating plate according to claim 2, wherein the conductive portion (61) extends beyond the insulating layer (62) and has a reinforcement (7) secured to an end thereof remote from the terminals;

the reinforcing piece (7) is wrapped and fixedly connected on the conductive part (61);

the outer side face, far away from the conductive part (61), of the reinforcing part (7) is fixedly connected with the first adhesive layer (2) and the conductive heating part (3).

4. An electric heating sheet as claimed in claim 3, wherein the reinforcing member (7) is symmetrically provided with guide projections (71) at both sides thereof.

5. An electric heating sheet according to claim 3, wherein a reinforcing groove (72) is formed in a side of the reinforcing member (7) remote from the conductive heat generating portion (3).

6. An electric heating plate according to claim 1, characterised in that the first (1) and the second (5) coating layers are both polyimide layers.

7. An electric heating plate as claimed in claim 1, characterized in that the electrically conductive heat generating portion (3) is an S-shaped electrically conductive copper strip.