JP3355104B2 - Floor heating panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor heating panel. More specifically, the invention of this application relates to a new floor heating panel that is useful in floor heating using a cord heater as a heat-generating portion and that can improve efficiency, workability, and temperature performance by wiring automation. It is.

[0002]

2. Description of the Related Art As a means for floor heating of a house or the like, a panel body in which a cord heater as a heat generating portion is wired together with a heat insulating material and a plywood surface material is known. The required number of panels are arranged in a plane and connected to each other to heat the required floor surface.

[0003]

However, in the floor heating panel to which the above-described cord heater is wired, the cord heater is manually wired to a long flat panel body and connected to a lead wire for power supply. Therefore, there is a limit in improving the productivity of the wiring work of the cord heater, and there is naturally a limit in the width of the wiring pattern. The folded pattern was in a range where both hands were widened at the maximum, and the pattern was inevitably complicated and the workability was restricted. As a result, there is a problem that wiring to a joint portion with an adjacent panel, that is, a peripheral edge of the panel body is not continuously formed, and it is difficult to secure a heating temperature at the joint portion.

[0004] Also, the connection work at the swaged portion is troublesome in relation to the wiring pattern. Further, the conventional floor heating panel has a problem that the heat uniformity of the panel and the optimization of the performance for preventing excessive temperature rise are not always sufficient.

[0005]

Means for Solving the Problems The present invention has been made to solve the above-mentioned problems, and a cord heater is wired to a panel body, and the cord heater is connected to a lead wire at a caulking portion. In the floor heating panel, the cord heater is composed of a straight wiring pattern parallel to the longitudinal direction up to near both ends of the panel body, a wiring pattern wrapping around the edge of the panel body along the edge without overlapping, and a caulking method. And a wiring pattern having a folded shape meandering in a portion.

[0006] The invention of this application also relates to the floor heating panel described above, wherein the panel body is provided with a lead wire tolerance absorbing portion for absorbing a tolerance associated with the connection between the cord heater and the lead wire. A thermostat is arranged at the center of the body, and a plurality of thermostats are arranged, and each thermostat is a panel body when the maximum temperature of the local heat insulating portion of the panel body becomes the heat resistant temperature of the component members of the panel body. An aspect is provided that, based on the temperature distribution, it is arranged at a position where the OFF temperature is to be set.

Further, the invention of this application also provides, as an embodiment, that a PTC heater is partially provided as a part of the cord heater.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention of the present application is characterized by the above-described features, whereby the workability is improved due to the automation of wiring, the heating temperature is secured at the panel joint, the efficiency of the caulking work is improved, and the uniformity of the panel is improved. It is possible to optimize the overheating prevention performance. Hereinafter, examples will be shown, and the floor heating panel of the invention of this application will be described in more detail.

[0009]

FIG. 1 is a plan view showing a panel body of a floor heating panel according to the present invention, and FIG. 2 is an enlarged plan view of a portion A shown in FIG. As exemplified in FIG. 1, in the floor heating panel of the invention of this application,
The basic pattern of the cord heater (2) as a heat generating portion is a wiring parallel to the longitudinal direction of the panel body (1). That is, the wiring is wired in a straight line parallel to the longitudinal direction up to near both ends of the panel body (1). As is made possible by such a wiring pattern, the cord heater (2) also has a wiring pattern that runs around the edge near both ends of the panel body (1). That is, in FIG. 1, the cord heater (2) is a wiring crossing the center line (B) from the upper side to the lower side and from the lower side to the upper side with respect to the center line (B) of the panel body (1). The pattern is provided near both ends of the panel body (1).

The above-described linear wiring pattern parallel to the longitudinal direction of the panel body (1) and the wiring pattern wrapping around the edge near both ends of the panel body (1) are not formed by a conventional manual operation. It cannot be used and is suitable for automatic mechanical wiring. Productivity can be improved by automatic wiring.
Further, a sufficient heating temperature can be secured at the peripheral portion of the panel body (1), that is, at the joint between the plurality of panel bodies (1).

As shown in FIG. 2, the panel body (1) is provided with a caulking portion (4) for connecting the cord heater (2) and the lead wire (3). The connection work at the caulking portion (4) is performed manually, but the invention of this application also facilitates the work. That is, the swaging part (4)
The cord heater (2) has a meandering folded pattern (5) wiring pattern, and a lead wire tolerance absorbing portion for absorbing a tolerance associated with the connection between the cord heater (2) and the lead wire (3). (6) is formed in a plane groove or a step shape.

After the caulking operation, the caulked portion (4), the cord heater (2) and the lead wire (3) are returned to the panel body (1), but the meandering folded pattern (5) is formed. And the presence of the lead wire tolerance absorbing portion (6) makes the operation extremely easy. When the meandering folded pattern (5) and the lead wire tolerance absorbing portion (6) are not provided, the lengths of the cord heater (2) and the lead wire (3) are changed by caulking work, and the predetermined pattern is used. There is a concern that the wiring of the cable will become difficult and the connection reliability at the caulking portion (4) will be impaired. However, in the invention of this application, there is no such concern at all.

The work in the caulking section (4) is facilitated and the connection reliability is improved, so that the heating temperature can be stabilized. Further, as shown in FIG. 1, in the floor heating panel of the invention of this application, it is recommended that the thermostat (7) be arranged at the center of the panel body (1), that is, at the position of the center line (B). You. Such an arrangement of the thermostat (7) improves the uniformity of the floor heating panel without impairing the speed of the above-mentioned automatic wiring, and secures an overheating prevention performance.

FIG. 3 is a circuit diagram schematically showing a circuit in which the thermostat (7) is arranged. The arrangement of the thermostats (7) depends on the size of the panel body (1), but usually a plurality of thermostats are arranged as shown in FIG. This is to ensure the heat uniformity and the overheating prevention performance over the entire surface of the panel body (1).

[0015] However, even if a plurality of heaters are arranged, a high heat insulating material such as a cushion or furniture is placed on the floor heating panel according to the living conditions of the occupants, and the heating temperature is excessively high in these partially insulated areas. Concerns about rising are not completely eliminated. When the local temperature rise exceeds the heat-resistant temperature of the components of the panel body (1), the quality of the panel body (1) such as insulation performance is affected. In particular, if the partial adiabatic zone is located between the two thermostats (7), the detection of excessive temperature rise is not always optimal.

Therefore, the invention of this application gives a guide on how to arrange the plurality of thermostats (7). That is, as shown in FIG. 4, the maximum temperature of the local heat insulating portion of the panel body (1) is lower than that of the panel body (1).
The temperature distribution of the panel body (1), which becomes the heat-resistant temperature of the component (1), is measured, and the thermostat (7) is arranged at the position where the OFF temperature is to be set.

Thus, the thermostat (7)
Is minimized, and the cost can be reduced. Furthermore, in the invention of this application, a PTC heater can be used instead of the above thermostat. This is because, for example, in the case of a floor heating panel using the thermostat (7) shown in FIG. 1, the installation width (W1) of the thermostat (7) and the pattern width (W) of the cord heater (2).
This is because the heating temperature at the position where the thermostat (7) is arranged may be low because 2) does not have the same pitch.

Therefore, as shown in FIG. 5, a PTC heater having a characteristic that the resistance of the heater increases with the rise in temperature to control the current and, as a result, the temperature rise can be controlled, As shown in FIG. 6, a PTC heater (8) is partially disposed as a part of a cord heater (2) as a heating element disposed on the panel body (1). The PTC heater (8) effectively realizes soaking of the panel body (1) by heat generation and prevention of excessive temperature rise due to local heat insulation.

Since the PTC heater (8) can have a certain width as shown in FIG. 7, it can sufficiently cope with local heat insulation, and also improves the uniform heat performance of the panel body (1). FIG. 8 is a circuit diagram schematically showing a circuit using the PTC heater (8). Of course, the invention of this application is not limited by the above examples. Various aspects are possible for the structure of the details.

[0020]

As described in detail above, according to the invention of this application, the efficiency and workability are improved by the automation of wiring, the heating temperature is secured at the panel joint, the efficiency of the caulking work is improved, and the panel is further improved. Optimum heat uniformity and excessive temperature rise prevention performance can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view showing a panel in a floor heating panel of the invention of this application.

FIG. 2 is an enlarged plan view of a portion A shown in FIG.

FIG. 3 is a circuit diagram schematically showing a circuit in which a thermostat is arranged.

FIG. 4 is a schematic diagram showing arrangement pitches of thermostats.

FIG. 5 is a graph showing characteristics of a PTC heater.

FIG. 6 is a plan view illustrating wiring of a floor heating panel using a PTC heater.

FIG. 7 is a perspective view illustrating the appearance of a PCT heater.

FIG. 8 is a circuit diagram schematically showing a circuit using a PCT heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Panel body 2 Cord heater 3 Lead wire 4 Caulking part 5 Folded shape 6 Lead wire tolerance absorption part 7 Thermostat 8 PTC heater

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F24D 13/02 H05B 3/00 310 H05B 3/00 330 H05B 3/14

Claims (5)

(57) [Claims] A cord heater is wired to a panel body,
In a floor heating panel in which this cord heater is connected to a lead wire at a caulking portion, the cord heater has a linear wiring pattern parallel to the longitudinal direction up to near both ends of the panel body, and along an edge at both ends of the panel body. A floor heating panel having a wiring pattern that runs around without overlapping and a folded wiring pattern meandering at a caulking portion. 2. The floor heating panel according to claim 1, wherein the panel body is provided with a lead wire tolerance absorbing portion for absorbing a tolerance caused by a connection between the cord heater and the lead wire. 3. The floor heating panel according to claim 1, wherein a thermostat is arranged at a central portion of the panel body. 4. The floor heating panel according to claim 3, wherein a plurality of thermostats are arranged, and each thermostat has a temperature of the panel body when a maximum temperature of a local heat insulating portion of the panel body becomes a heat resistant temperature of a component member of the panel body. A floor heating panel located at a position where the OFF temperature should be set based on the distribution. 5. The floor heating panel according to claim 1, wherein a PTC heater is partially provided as a part of the cord heater.