JPS592440Y2 - combustion appliances - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a wiring processing structure for electrical cords in a combustion appliance.

Hereinafter, this will be explained in detail based on a diagram. The diagram shows a forced exhaust type combustion appliance, the main body 1 of the exterior has a front opening 2 on the front side of the appliance, and the built-in heat exchanger 3, burner 4, etc. It can be freely put in and taken out from the opening 2.

Reference numeral 5 denotes a mechanism unit connected to the base end of the burner 4, and is equipped with electrical components such as a solenoid valve 6 for opening and closing the gas passage and an igniter 7 for igniting the discharge.

Reference numeral 8 represents a fan motor for forced exhaust air interposed in an exhaust path 9 connected to the heat exchanger 3, and reference numeral 10 represents a wind pressure switch that detects the air blowing pressure of the fan motor 8 and controls the opening and closing of the electromagnetic valve 6.

The heat exchanger 3 of this embodiment is of a semi-hot water storage type, and the outlet tank 11 is equipped with a thermistor 12 for controlling hot water temperature, a bi-limit switch 13 for overheating prevention, and a float switch 14 for preventing dry heating. An anti-freeze heater 16 is provided in the tank 15, and a low-temperature thermistor 17 is provided at a suitable location in the interior space of the tank 15 to sense the air temperature near the freezing temperature and control the energization of the anti-freeze heater 16.

Reference numeral 18 denotes a control box consisting of relays and the like for centrally controlling these electrical components, and wiring cords A from each electrical component are centrally connected to the control box 18.

Reference numeral 19 indicates an external power connection cord, and reference numeral 20 indicates a remote control box for starting and stopping combustion, adjusting hot water temperature, etc. from a remote location.

21 denotes both side plates 22 and 23 of the exterior main body 1 on the two sides of the opening.
It is an exterior reinforcing material with a channel-shaped cross section that is installed in a bridge state between the two, and integrally formed with retaining pieces 26 having cutout grooves 25 that engage with grooves 24 formed in the side plates 22 and 23 at both ends.

27 and 28 are holes drilled near both ends of the reinforcing material 21, 29.30 are grommets made of rubber etc. fitted into the holes 27 and 28, and 31 are fixing the reinforcing material 21 and the side plates 22 and 23. The screws 32 are wire stickers attached between the holes 27 and 28 of the reinforcing material 21 as necessary to converge the wiring cord A.

Note that the exterior reinforcing material 21 is detachable.
1 is attached, the front opening 2 of the exterior main body 1 is closed with a detachable front plate (not shown).

The present invention is constructed as described above, and when assembling the device, the heat exchanger 3, burner 4, mechanism section 5, etc. are assembled into the exterior main body 1.
After storing it inside, the opening 2 side of the exterior main body 1, both side plates 22
, 23 are connected together by reinforcing the exterior reinforcing material 21 across the frame.

In wiring connections between each electrical component and the control box 18, the electrical components located on the opposite side of the control box 18 after inserting the heat exchanger 3, that is, the solenoid valve 6, the igniter 7, the thermistor 12, and the bi-limit switch 13
For the float switch 14, etc., insert the wiring cord A through one grommet 27 of the reinforcing member 21 and pull it out to the front side, then insert it from the front side to the opposite side of the other grommet 28, and connect the connection end such as a crimp terminal. may be connected to the control box 18.

Moreover, if necessary, it is sufficient to bundle the parts in the middle and use wire stickers 32 to hold them together.

According to the present invention, there is no need to separately provide a protective tube for the wiring cord A, and the wiring cord A, which is extended and connected from one side of the device to the other side along the side of the heat exchanger 3, can be connected to the exterior of the device. Although it is separated from the heat exchanger 3 by the reinforcing material 21 and the wire is wired with its surroundings protected by the reinforcing material 21, it will not be connected to the heat exchanger 3 and burnt out. The surface of the heat exchanger 3 is not directly exposed to the heat from the burner 4, and furthermore, it is extremely safe as it will not be burnt out due to overflowing flames.

Further, at the same time, a large number of wiring cords are neatly gathered together at the exterior reinforcing member 21, which is advantageous in terms of equipment assembly and maintenance and inspection, and is also aesthetically pleasing.

Furthermore, the wire sticker 32 can be used within the front opening 2 of the instrument by pasting it on the reinforcing material 21, and various other practical effects can be achieved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall configuration diagram seen from the front, and FIG. 2 is an exploded perspective view showing the engagement relationship between the exterior reinforcing material and the side plates of the exterior main body. 1...Exterior main body, 2...Front opening, 3
... Heat exchanger, 21 ... Exterior reinforcing material,
22.23...Side plate, A...Wiring code.

Claims (1)

[Scope of utility model registration request] The wiring cord that electrically connects the various electrical components distributed on both sides of the heat exchanger is an exterior reinforcing material that is installed as a bridge between both side panels of the exterior body within the front opening of the exterior body. A combustion appliance characterized in that the wiring is extended along the side opposite to the heat exchanger, that is, the front side.