JPH074698A - Heater of humidifier and manufacture thereof - Google Patents

Abstract

PURPOSE:To manufacture a heater easily without causing the possibility of impairing inside insulating paper of another heater by a terminal wire in the course of an operation of winding a heater wire or others and, moreover, to insulate surely the heater wire by outside insulating paper and thereby to lessen the possibility of causing an insulation fault. CONSTITUTION:On the outer periphery of a heater wire 5 wound on the outer periphery of inside insulating paper 3, outside insulating paper 7 is so wound round as to project outward on the opposite sides from the part whereon the heater wire 5 is wound, and a pair of terminal wires 8 are wound round on the opposite end parts of the outside insulating paper 7 so that the opposite sides of the heater wire 5 are pressed against a heater pipe 2 from above the outside insulating paper 7, so as to be fixed thereon.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating element for a humidifier and a method for manufacturing the heating element.

[0002]

2. Description of the Related Art As shown in FIG. 4, a heating element of a humidifier has an inner insulating paper 5 wound around a heater pipe 51 of the humidifier.
2, a heater wire 53 wound around the outer circumference of the inner insulating paper 52, an outer insulating paper 54 wound around the outer circumference of the heater wire 53, and a pair of terminal wires to which both ends of the heater wire 53 are connected. Some have 55 and. The heating element of the conventional humidifier of this type, as shown in FIG.
A pair of terminal wires 55 are wound around the outer end portion of the outer circumference of the inner insulating paper 52, a heater wire 53 is wound between the pair of terminal wires 55 on the outer circumference of the inner insulating paper 52, and then a heater between the pair of terminal wires 55. The outer insulating paper 54 is wound around the outer periphery of the wire 53, and the pressing wire 56 is wound around the outer periphery of the outer insulating paper 54 so that the outer insulating paper 54 is fastened and fixed to the heater pipe 51 (e.g. 15278).

[0003]

However, conventionally, since the terminal wire 55 is wound around the outer end portion of the inner insulating paper 52, in order to keep the outer insulating paper 54 wound around the outer circumference of the heater wire 53. In addition to the winding of the terminal wire 55, it is necessary to wind the pressing wire 56 on the outer periphery of the outer insulating paper 54, which increases the number of manufacturing processes and makes the manufacturing troublesome. Further, since the winding width of the outer insulating paper 54 is regulated by the pair of terminal wires 55, the outer insulating paper 54 cannot be projected outward from the winding portion of the heater wire. Due to this, it is difficult to reliably insulate the heater wire 53, and there is a great risk of causing insulation failure.

Further, in the past, the terminal wire 55 may damage the inner insulating paper 52 of another heating element during the winding operation of the heater wire 53. In view of the above problems, the present invention can be easily manufactured without fear of damaging the inner insulating paper of another heating element by the terminal wire during the winding operation of the heater wire, and the outer insulating paper is used for the heater. The wire can be reliably insulated, and the risk of insulation failure is reduced.

[0005]

The first technical means of the present invention for solving this technical problem is the inner insulating paper 3 wound around the heater pipe 2 of the humidifier, and the inner insulating paper. A humidifier provided with a heater wire 5 wound around the outer circumference of the heater wire 3, an outer insulating paper 7 wound around the outer circumference of the heater wire 5, and a pair of terminal wires 8 to which both ends of the heater wire 5 are connected. In the heating element, the outer insulating paper 7 is wound around the outer circumference of the heater wire 5 wound around the outer circumference of the inner insulating paper 3 so as to project outward from both sides of the wound portion of the heater wire 5.
A pair of terminal wires 8 are wound around both ends of the outer insulating paper 7 so as to press and fix both sides of the heater wire 5 from above the outer insulating paper 7 to the heater pipe 2.

The second technical means of the present invention is to provide an inner insulating paper 3 wound around a heater pipe 2 of a humidifier, a heater wire 5 wound around the inner insulating paper 3 and the heater wire. In the manufacturing method of the heating element of the humidifier, which comprises the outer insulating paper 7 wound around the outer periphery of the heater 5, and the pair of terminal wires 8 to which both ends of the heater wire 5 are connected, After winding the inner insulating paper 3, the heater wire 5 is wound around the inner insulating paper 3, and both ends of the heater wire 5 are attached to both sides of the heater pipe 2 outside the inner insulating paper 3 with adhesive tapes 13. Paste it,
After that, the outer insulating paper 7 is wound around the outer periphery of the heater wire 5, and both ends of the outer insulating paper 7 are fixed by pressing both sides of the heater wire 5 onto the heater pipe 2 from above the outer insulating paper 7. The terminal wire 8 is wound, and both ends of the heater wire 5 adhered to the heater pipe 2 by the adhesive tape 13 are removed and connected by a pair of terminal wires 8.

[0007]

When manufacturing a heating element, both ends of the heater wire 5 wrapped around the outer periphery of the inner insulating paper 3 are attached to both sides of the heater pipe 2 outside the inner insulating paper 3 with adhesive tapes 13, and then Outer insulating paper 7 around the heater wire 5
By winding a pair of terminal wires 8 around both ends of the outer insulating paper 7 so that both sides of the heater wire 5 are pressed onto the heater pipe 2 from above the outer insulating paper 7 and fixed. The terminal wire 8 can also serve as a holding wire for holding the wire wound around the outer circumference of the heater wire 5, and it is not necessary to specially wind the holding wire around the outer circumference of the outer insulating paper 7.

[0008]

The present invention will be described below with reference to the illustrated embodiments. 1 and 2, 1 is a heating element of a humidifier, and 2
Is the heater pipe. One end of the heater pipe 2 is connected to the steam pipe via a connecting pipe or the like, and the other end is connected to a water tank via the connecting pipe or the like.

An inner insulating paper 3 is wound around the outer circumference of the heater pipe 2 and is attached by an adhesive tape 4 so that the wound state does not come off. 5 is a heater wire, which is wound around the outer periphery of the inner insulating paper. An outer insulating paper 7 is wound around the heater wire 5 wound around the inner insulating paper 3, and the outer insulating paper 7 has substantially the same width as the inner insulating paper 3 and is wound around the heater wire 5. It protrudes far outwards from the attached part. Reference numeral 8 denotes a pair of terminal wires, which are wound around the outer periphery of both ends of the outer insulating paper 7, and both ends thereof are twisted with each other to form a twisted portion 9. Each terminal wire 8 is fixed by pressing both sides of the heater wire 5 onto the heater pipe 2 from above the outer insulating paper 7. Both ends of the heater wire 5 are respectively wound around the twisted portions 9 of the terminal wire 8 and connected to the terminal wire 8. 11
Are lead wires, which are respectively connected to the terminal wires 8.

Next, a method of manufacturing the heating element 1 will be described. As shown in FIG. 3, the heater pipe 2 of the humidifier
The inner insulating paper 3 is wound around and is temporarily fixed by the adhesive tape 4 so that the rolled state does not come off. After that, the heater wire 5 is wound around the inner insulating paper 3. On this occasion,
First, one end of the heater wire 5 is temporarily fixed to the outside of the inner insulating paper 3 of the heater pipe 2 with an adhesive tape 13, and then the one end of the heater wire 5 is fixed at about 3 mm inward from the outer edge of the inner insulating paper 3. Rotate twice or more to prevent fraying part 12
Then, the heater wire 5 is evenly wound at a predetermined pitch, starting to wind when the inner side is slid by about 8 mm. The winding end of the heater wire 5 is the same as the winding start, after the other end side of the heater wire 5 is wound twice or more at the position of about 3 mm inward from the outer edge of the inner insulating paper 3 to form the anti-ravel part 12. The other end of the heater wire 5 is temporarily fixed to the outside of the inner insulating paper 3 of the heater pipe 2 with an adhesive tape 13.

Next, as shown in FIGS. 1 and 2, the outer insulating paper 7 is wound around the heater wire 5 wound around. Then, the pair of terminal wires 8 are respectively wound around both ends of the outer insulating paper 7, that is, about 9 mm from the outer edge of the outer insulating paper 7, and both ends of each terminal wire 8 are twisted with each other. A twisted portion 9 is formed by this, so that each terminal wire 8 presses and fixes both sides of the heater wire 5 from above the outer insulating paper 7 to the heater pipe 2.

After that, the adhesive tape 13 is removed to unravel the fray stopper 12 of the heater wire 5, and both ends of the unraveled heater wire 5 are wound around the twisted portion 9 of the terminal wire 8 so that both sides of the heater wire 5 are wound. Is connected to the terminal line 8.

[0013]

According to the present invention, a pair of terminal wires 8 are attached to both ends of the outer insulating paper 7 so that both sides of the heater wire 5 are pressed and fixed to the heater pipe 2 from above the outer insulating paper 7. The terminal wire 8 can also be used as a holding wire for keeping the outer insulating paper 7 wound around the outer circumference of the heater wire 5, since the outer insulating paper 7 is wound around the outer wire 7. No more wrapping around, fewer manufacturing steps, and easier manufacturing. In addition, the winding width of the outer insulating paper 7 is not restricted by the pair of terminal wires 8, and the outer insulating paper 7 can be largely projected outward from the heater wire winding portion. Therefore, it is possible to reliably insulate the heater wire 5 by the outer insulating paper 7, and there is no possibility of causing insulation failure. Furthermore, since the heater wire 5 is wound around the inner insulation paper 3 and the outer insulation paper 7 is wound around the outer insulation paper 3, a pair of terminal wires 8 can be wound around both ends of the outer insulation paper 7. It is also possible to prevent the terminal wire 8 from damaging the inner insulating paper 3 of another heating element during the winding work of the wire 5.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a front view showing the manufacturing process.

FIG. 4 is a front view showing a conventional example.

[Explanation of symbols]

 1 heating element 2 heater pipe 3 inner insulating paper 5 heater wire 7 outer insulating paper 8 terminal wire 13 adhesive tape

Claims (2)

[Claims] 1. An inner insulating paper (3) wound around a heater pipe (2) of a humidifier, a heater wire (5) wound around the outer circumference of the inner insulating paper (3), and the heater wire (5). )
Insulating paper (7) wound around the outer periphery of the heater wire and a pair of terminal wires (8) to which both ends of the heater wire (5) are connected.
In the heating element of the humidifier equipped with, the outer insulating paper (7) is wound around the heater wire (5) around the outer circumference of the heater wire (5) wound around the outer circumference of the inner insulation paper (3). It is wound so as to project outward, and both ends of the outer insulating paper (7) are fixed by pressing both sides of the heater wire (5) onto the heater pipe (2) from above the outer insulating paper (7). Thus, the heating element of the humidifier, wherein the pair of terminal wires (8) are wound. 2. An inner insulating paper (3) wound around a heater pipe (2) of a humidifier, a heater wire (5) wound around the inner insulating paper (3), and the heater wire (3). In a method for producing a heating element of a humidifier, which comprises an outer insulating paper (7) wound around the outer periphery of (5) and a pair of terminal wires (8) to which both ends of the heater wire (5) are connected, After winding the inner insulation paper (3) around the heater pipe (2) of the humidifier, wind the heater wire (5) around the outer circumference of the inner insulation paper (3) and fix both ends of the heater wire (5). Adhesive tape (13) is attached to both sides of the heater pipe (2) outside the inner insulating paper (3), and then the outer insulating paper (7) is wound around the outer periphery of the heater wire (5),
Winding a pair of terminal wires (8) around both ends of the outer insulating paper (7) so that both sides of the heater wire (5) are pressed and fixed on the heater pipe (2) from above the outer insulating paper (7). A heating element for a humidifier, characterized in that both ends of the heater wire (5) attached to the heater pipe (2) with the adhesive tape (13) are removed and connected with a pair of terminal wires (8). Manufacturing method.