JPH04220985A - Planar heater unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar heater for floor heating, food insulation, and general heating, which requires heating of a large area, and a planar heater unit constituting the same.

0002

2. Description of the Related Art Conventionally, when constructing a planar heater that requires heating a large area, such as in floor heating, a plurality of square or rectangular planar heater units have been electrically connected.

[0003] Each planar heater unit is provided with conductive wire connections at two adjacent corners of a square or rectangle, one for input and the other for output, and is connected to other planar heater units. Ta.

[0004] Furthermore, when making connections, in order to prevent the wiring from being exposed to the outside of the planar heater unit, the input connection part and the output connection part of the other heater unit must also be connected to each other.
The output connecting portion and the input connecting portion of the third heater unit were arranged so as to be in contact with each other, and the conductive wire after being electrically connected was stored in the space of the conductive wire connecting portion.

[0005]

[Problems to be Solved by the Invention] However, in conventional planar heater units, conductive wire connections are provided at two adjacent corners of a square or rectangle, that is, two corners that sandwich one side. In order to construct sheet heaters of various shapes by connecting two conductive wires, it is necessary to make sure that one conductive wire connection part can be used for both input and output. For this reason, it is not possible to attach a simple connection device such as a connector to the conductive wire connection portion in advance, and it takes a lot of time to connect the conductive wires when installing the planar heater unit. Furthermore, the shape of the planar heater that can be connected and formed is also subject to significant limitations.

[0006] The problem to be solved by the present invention is to make it possible to easily connect conductive wires when installing a planar heater unit, and to avoid restrictions on the shape of the planar heater that can be formed by connecting them. Another object of the present invention is to provide a connection structure for a planar heater unit.

[0007]

[Means for Solving the Problems] The planar heater of the present invention includes:
Multiple square or rectangular planar heater units, each with an electrical input section on one corner and an electrical output section on the diagonal, can be connected using a conductive wire connection device such as a connector to create a large-area planar heater unit. It is characterized by being a heater.

[0008] Each planar heater unit is also characterized in that electrical output and input connectors are housed in spaces provided at the corners so that they can move freely.

[0009]

[Operation] By suitably changing the orientation of each sheet heater unit and combining them, and connecting the electric input portions and the electric output portions at the corners of adjacent sheet heater units, a sheet heater having a desired area and shape is formed. By moving the direction of the electrical input section and the electrical output section within the space formed at the corner of each planar heater unit, connections can be made according to the positions of the mating electrical input section and output section.

0010

[Examples] The present invention will be specifically explained below with reference to Examples.

FIG. 1 shows a planar heater unit 3 in which an electrical input section 1 is provided at one corner of a square planar heater and an electrical output section 2 is provided at the diagonal corner thereof. Planar heater unit 3
For example, the size is 90cm square and 1.2cm thick.
m nichrome heater can be used. Note that the planar heater unit 3 may be one using another heating element, such as a film heater, for example.

FIG. 2 shows details of the electrical input section 1. As shown in FIG. The input connector 4 is connected to a heating element (not shown) by a conductive wire 5, can move freely within a space 6 provided for storage, and can be connected in two orthogonal directions.

FIG. 3 shows details of the electrical output section 2. As shown in FIG. The output connector 7 is connected to a heating element (not shown) by a conductive wire 8, and can move freely within a space 9 provided for storage and can be connected in two perpendicular directions.

FIG. 4 schematically shows square planar heater units 3 connected by various numbers of connection parts 10 to form planar heaters 11 of various shapes using the connection method according to the present invention. ing.

FIG. 4(a) shows an example in which two devices are connected in a straight line, and FIG. 4(b) shows an example in which five devices are connected in a straight line. (c) and (d) show examples in which two rows are connected back and forth. (e) and (f) show examples of square arrays. Also, (g) is L-shaped, (h
) shows an example in which an L-shape and two rows are combined. In these figures, white circles indicate the electrical input section 1, and black circles indicate the electrical output section 2.

As described above, by using the planar heater unit of the present invention, a planar heater of any shape can be formed by combining a plurality of sheets.

[0017]

[Effects of the Invention] The following effects can be achieved by the method of connecting a planar heater unit of the present invention.

[0018] Since the connection between the planar heater units can be made with one touch, it is possible to easily install the planar heaters in a large area, such as for floor heating, in a short time.

[0019] Since there are few restrictions on the size and shape of the planar heater that can be connected and constructed, it is possible to meet various needs of users, such as floor heating.

■ Planar heaters of various shapes can be configured with a planar heater unit of one type of size and shape;
Mass production is improved and inexpensive planar heaters can be provided.

[0021] Since planar heaters of various shapes can be constructed without exposing wiring to the outside of the planar heater unit, troubles such as disconnection and electric leakage are less likely to occur, and safety is also high.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the positional relationship between an electrical input section and an electrical output section in a planar heater unit according to the connection method of the present invention.

FIG. 2 is an enlarged perspective view showing the detailed structure of the electrical input section in FIG. 1;

FIG. 3 is an enlarged perspective view showing the detailed structure of the electric output section in FIG. 1;

FIG. 4 is a plan view schematically showing the state of connection when planar heaters of various shapes are configured by the method of connecting planar heater units according to the present invention.

[Explanation of symbols]

1 Electrical input section 2 Electrical output section 3 Planar heater unit 4 Input connector 5 Conductive wire 6 Space 7 Output connector 8 Conductive wire 9 Space 10 Connection part 11 Planar heater

Claims (2)

[Claims] Claim 1: A plurality of square or rectangular planar heater units each having an electrical input section at one corner and an electrical output section at the diagonal corner, with the adjacent electrical input sections and electrical output sections connected to each other. A sheet heater formed by Claim 2: A square or rectangular shape that is housed in a space provided in a corner and has an electrical output connector and an electrical input connector that are connected to the heating element by a conductive wire and can move freely within the space. sheet heater unit.