JPH10300113A - Floor heating heater panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a floor heating panel exhibiting an excellent waterproof and a high safety. SOLUTION: Male and female connectors 5, 6 are mounted on the side peripheries of panels incorporating heaters therein. A seal ring 33 is mounted on a deep-end bottoms portion a socket 30 formed in one connector 5 and a distal end of the corresponding connector 6 which is inserted in the socket 30 is forcibly brought into contact with the seal ring 33 and guide protrusions formed on the deep-end bottom portion of the connector socket prevents an intermediate portion of the seal ring from being deformed inwardly within a loop. The male and female connectors 5, 6 are locked and connected by way of engaging protrusions 31 and engaging pawls 32. Waterproof plugs 34 are mounted in cord leading out portions of the connectors 5, 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a floor heating heater panel.

[0002]

2. Description of the Related Art As a floor heating heater panel, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-69518,
2. Description of the Related Art There is known a configuration in which male and female connectors connected to heaters are provided on the side of a panel main body in which heaters are installed, and heaters of adjacent panels are sequentially connected with connectors.

[0003]

When floor heating using a heater panel is used on the floor of a kitchen, there is a high possibility that spilled liquid may enter from a joint portion of the panel, and this may occur at a connector connection portion. Then there is a risk of developing into a short accident.

[0004] It is an object of the present invention to provide a floor heating heater panel that is highly safe even against liquid spills.

[0005]

In order to achieve the above object, the present invention has the following arrangement.

According to the first aspect of the present invention, a male / female connector connected to the heater is provided on a side of a panel body in which a heater is provided, and a seal is provided at an inner bottom of an insertion hole formed in one of the connectors. A ring is provided so that the distal end of the mating connector inserted into the insertion hole is configured to be pressed against the seal ring.

According to a second aspect of the present invention, in the first aspect of the present invention, a guide projection for preventing the intermediate portion of the seal ring from being deformed inward of the loop is provided at the inner bottom portion of the connector insertion hole. It is characterized by having been done.

The invention according to claim 3 is the invention according to claim 1 or 2
In the invention according to the fifth aspect, a waterproof plug acting on each cord is attached to a cord lead-out portion of the connector.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the male and female connectors are connected to each other via an engagement projection and an engagement claw provided outside the connector. It is configured to be locked.

[0010]

According to the first aspect of the present invention, the connected male and female connectors are water-sealed through the seal ring at the inner part of the insertion hole, and even if liquid spilled on the floor surface hits the connector connection part. Does not flow into the terminal connecting portion from the insertion site.

According to the second aspect of the present invention, the seal ring attached to the inner bottom portion of the insertion hole is prevented from being deformed inward by the guide projection, so that the entire end of the mating connector is inserted. It works reliably over the circumference.

According to the configuration of the third aspect, each of the plurality of cords led out from each connector is water-sealed with the waterproof plug, and the intrusion of liquid into the inside from the cord lead-out portion is reliably prevented.

According to the fourth aspect of the present invention, the male and female connectors connected and locked are locked by external engagement, so that the insertion does not become loose unless an engagement release operation is performed, and the inner part of the insertion hole is not deepened. Thus, the water seal function by the seal ring can be surely exhibited.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a floor surface on which a large number of floor panels are fitted and laid, and a hatched heater panel 1 is shown.
A, 1B, and a normal floor panel 1C are used.

The basic configuration of the heater panels 1A and 1B is the same, and the detailed configuration of only the heater panel 1A will be described below. In the following description, the long side direction of the panel is referred to as a longitudinal direction, and the short side direction is referred to as a width direction.

FIG. 3 shows an exploded state of the heater panel 1A as viewed from the back side. This heater panel 1A
A panel main body 2 made of a plywood material, a sheet-like PTC heater 3 provided on the back surface (lower surface) thereof, and a back plate 4 made of a plywood material covering the PTC heater 3 from the back surface,
A male connector 5 and a female connector 6 wired and connected to the PTC heater 3 are provided at both long side portions of the panel main body 2.

As shown in FIGS. 4 and 5, a heater housing recess 7 for housing and arranging the PTC heater 3 is formed on the rear surface of the panel main body 2 over substantially the entire surface thereof by gang sawing or the like. At the one end in the longitudinal direction, a deep wiring recess 8 is formed, and near the both ends in the width direction of the heater recess 7, electrode storing grooves 9, 10 are formed in parallel with each other. At the same time, a wiring storage groove 11 is provided at an intermediate portion between these electrode storage grooves 9 and 10.
Are formed, and a recess 12 for housing a ground wire is formed at an end of the recess 7 for housing a heater. Also,
On both long sides of the back surface of the panel body 2, connector housing recesses 13, 14 connected to the heater housing recess 7 are formed, and the connector housing recesses 13, 14 and the wire housing recess 8 are formed. Three for each wiring storage groove 15,
16 are formed.

The PTC heater 3 is formed by covering a sheet-like heating element having a pair of linear electrodes 21 and 22 along both long sides with an insulating resin sheet from both sides. As shown in the wiring diagram, each of the electrodes 21 and 22 has a pair of power cords 23 and 2 connecting the male connector 5 and the female connector 6.
4 respectively. In addition, an earth wire 26 connected to the PTC heater 3 is connected to an intermediate portion of an earth cord 25 provided in parallel with the power cords 23 and 24.

Then, as shown in FIG.
A heat diffusion sheet 27 made of a metal material such as aluminum having high thermal conductivity is laminated on the surface of the TC heater 3, and the PTC heater 3 is heated so that the heat diffusion sheet 27 is located on the surface side of the panel body 2. It is fitted into the storage recess 7 and stored. At this time, a pair of ridges corresponding to the thickness of both electrodes 21 and 22 and a ground wire 26 protrude from the front side of the PTC heater 3, and the ridges of the electrodes 21 and 22 are recessed for heater storage. 7 are housed in the respective electrode housing grooves 9 and 10, and the ground wire 26 is housed in the ground wire housing recess 12.

A connection cord 28 for connecting the one electrode 21 and the power supply cord 23 is provided substantially at the center of the heat generating surface of the PTC heater 3, and the connection cord 28 is connected to the wiring accommodation groove 11 of the heater accommodation recess 7. It is designed to be stored in. In the middle of the connection cord 28, three thermal fuses 29 that sense and disconnect the temperature higher than the set temperature are interposed in series.

A connector 5 containing three male terminals 5a
Is fitted and mounted in a fixed position in the connector housing recess 13 on the long side on which a male ridge is formed.
The connector 6 containing the three female terminals 6a is mounted so as to be able to move out and retreat into the connector housing concave portion 14 on the long side in which the female tang is formed.

As shown in FIG. 9, when the connector 6 is inserted and connected to the insertion hole 30 formed in the connector 5, the engagement claws provided on the connector 6 are engaged with the engagement projections 31 provided on both sides of the outer surface of the connector 5. As long as the engagement 32 is engaged and the engaging claw 32 is not released, the connected state of the connectors 5 and 6 is firmly maintained.

In order to prevent liquid spilled on the floor from entering the wiring connection site, the following waterproof means is employed. That is, as shown in FIGS. 9 and 10, a seal ring 33 to which the distal end of the inserted connector 6 is pressed against is inserted into the bottom of the insertion hole 30 of the connector 5. A waterproof plug 34 is press-fitted and attached to each of the cord lead-out portions. In addition, the seal ring 33 is provided between the male terminals 35 at the bottom of the insertion hole 30 and the guide projections 3 standing upright.
The deformation of the inside of the loop is prevented by the contact 6, and the contact always acts on the entire periphery of the distal end of the connector 6.

The connector housing concave portion 14 is wider than the female connector 6 and is formed deeper inward and backward, and a cord having a length enough to allow the female connector 6 to be pulled out from the panel body 2 to the outside. The connector housing 13 is bent and housed inside the connector housing recess 13.

Further, in order to compensate for a decrease in the strength of the large recessed recesses 8 for wiring and the recesses 14 for housing connectors,
Reinforcing iron plates 37 and 38 are adhesively fixed to these bottom surfaces. Also, three cords 2 connecting both connectors 5 and 6
3, 24, 25 are reinforcing iron plates 37 via double-sided tape.
It is stuck on the top, and the storage posture is stably maintained.

The back cover 4 is dropped into a step portion 39 formed on the peripheral edge of the heater accommodating recess 7 and is fixed by nailing, so that the back surface of the heater panel 1A is flush.

Since the heater panel 1B is different from the heater panel 1A only in the connector mounting position, a detailed description of the structure is omitted.

The heater panel 1 configured as described above
A and 1B are arranged in a plurality of rows, and connectors 5 and connectors 6 facing each other between panels adjacent in the width direction are sequentially connected, and as shown in the wiring diagram of FIG. The cord derived from 1A is wired and connected to a relay 42 controlled by the controller 41 to form a heating area having a desired area. A temperature sensor 43 inserted and mounted on the frontmost heater panel 1A located on the power supply side is connected to the controller 41. Based on information from the temperature sensor 43, the relay 42 is turned on / off to generate a heater heat. Energization control is performed to maintain the surface at the set temperature. In addition, the safety against unexpected accidents is ensured by the thermal fuse 29 provided in each PTC heater 3.

At the time of construction, since the connector 6 can be moved back and forth with respect to the heater panels 1A and 1B, the connector 6 is fitted to the male connector 5 in a state where the connector 6 is pulled out, and then the long sides facing each other are connected. Joined by fitting (sane).

As shown in FIG. 2, a female connector 44 for wiring is connected to the male connector 5 of the heater panel 1A in the front row, and the wiring led out from the female connector 44 is It is guided under the floor through the base plate and connected to the relay 42. Note that the frontmost heater panel 1
A recess 45 for accommodating the protruding male connector 5 and female connector 44 is cut out in the floor panel 1C connected to A. As shown in FIG. 2, since the mating connector is not connected to the female connector 6 of the heater panel 1B in the last row, a rubber cap 46 may be fitted to waterproof.

[0032]

As is clear from the above description, the following effects can be expected according to the present invention.

According to the first aspect of the present invention, since the insertion connection portion of the male and female connectors is waterproofed by the seal ring provided inside the insertion hole, even if liquid spilled on the floor surface is sprayed on the connector connection portion. Even if it is applied, it does not penetrate into the terminal connection portion, and can be used safely even on the floor of a kitchen where liquid is frequently spilled.

According to the second aspect of the present invention, since the shape of the seal ring is stably maintained by the guide projection,
The sealing ring can be brought into contact over the entire periphery of the end of the mating connector that has been inserted, so that a waterproof function can be exhibited, and the above effect of the invention according to claim 1 is promoted.

According to the third aspect of the present invention, it is possible to prevent the liquid from entering not only from the connector insertion connection portion but also from each cord lead-out portion of each connector, thereby further enhancing the waterproof effect. it can.

According to the fourth aspect of the present invention, since the insertion and connection states of the male and female connectors are locked, loosening of the connectors due to walking vibration or the like is prevented, and the waterproof effect of the seal ring is ensured. Can be maintained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a part of a floor surface of a room with floor heating.

FIG. 2 is a schematic wiring diagram

FIG. 3 is an exploded perspective view of the heater panel viewed from the back side.

FIG. 4 is a perspective view of a panel main body.

FIG. 5 is a plan view seen from the back surface of the panel body.

FIG. 6 is a partially cutaway plan view from the back of the assembled heater panel.

7A is a sectional view taken along line aa in FIG. 6; FIG. 7B is a sectional view taken along line bb in FIG. 6;

8 (d) is a sectional view taken along line dd in FIG. 6. (e) is a longitudinal sectional view of a panel joint.

FIG. 9 is a plan view showing a separated state (a) and a connected state (b) of the connector.

FIG. 10 is a cross-sectional plan view of the inner part of the insertion hole.

[Explanation of symbols]

 2 Panel body 3 Heater 5 Connector 6 Connector 30 Insertion hole 31 Engagement projection 32 Engagement claw 33 Seal ring 34 Waterproof plug 36 Guide projection

Claims (4)

[Claims] 1. A side of a panel body containing a heater,
A male and female connector connected to the heater is provided, and a seal ring is provided at the bottom inside the insertion hole formed in one connector, and the tip of the mating connector inserted into the insertion hole is pressed against the seal ring. A heater panel for floor heating, wherein the heater panel is configured to be heated. 2. The heater panel for floor heating according to claim 1, wherein a guide projection for preventing an intermediate portion of the seal ring from being deformed inward of the loop is provided at an inner bottom portion of the connector insertion hole. A heater panel for floor heating. 3. The floor heating heater panel according to claim 1 or 2, wherein a waterproof plug acting on each cord is attached to a cord lead-out portion of the connector. 4. The floor heating heater panel according to claim 1, wherein the male and female connectors are locked in a connected state via an engagement protrusion and an engagement claw provided outside the connector. A heater panel for floor heating, wherein the heater panel is configured to perform heating.