JP2838768B2 - Unit heat source - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit heat source, and more particularly, to a heat source such as a hot air generator, a duct heater, and a steam heater.

[0002]

2. Description of the Related Art In a conventional unit heat source, FIG.
As shown in (1), a method of inserting one heating wire 8 into a plurality of holes 7a provided in a die-shaped outer box 7 has been adopted. There is also a device according to Japanese Utility Model Application Laid-Open No. 53-51640.

[0003]

In the unit type heat source shown in FIG. 6, it was difficult to bend the heating wire 8 into a plurality of holes 7a provided in the outer box 7 in sequence and insert it. That is, one long heating wire 8 is inserted into one hole 7a,
The portions that have come out of a are bent, inserted into the adjacent holes 7a, and the portions that have come out of the holes 7a are repeatedly inserted into the adjacent holes 7a, so that the heating wires 8 are inserted into all the holes 7a. The method of inserting was taken and it was very troublesome

In addition, the invention according to Japanese Utility Model Laid-Open Publication No. 53-51640 discloses a method of fitting and fixing the spacers 2 to the panel 1 one by one, and the trouble of fixing the heater body 3 to the spacers 2 by using the heater fixing pieces 4. And further assembling the four board bodies 1 into a box to form an electric furnace.

Further, for the same reason, it is very difficult to take out the heating wire 8 from the outer box 7.

According to the present invention, a heating wire is easily fitted into a frame,
It is another object of the present invention to provide a unit heat source that can be taken out.

[0007]

In order to achieve the above object, according to the present invention, a step is provided so that one top end surface 1a of a side wall forming a rectangular frame 1 is raised inside.
A step is provided so that the other top end surface 1b is lower inside, and several rows of partitions 2 and 3 are laid in parallel and alternately in the frame 1, and one top end surface 2a, 3a of the partitions 2 and 3 is provided. Are alternately notched at the same height as the top end face 1a of the frame body 1 to form a recess 2b, 3b by intercepting a portion intersecting in a T-shape, and the other top end faces 2c, 3c of the partitions 2 and 3 are At the same height as the other top end face 1b, and the other top end face 2c of the partition 2 is formed wider than the one top end face 2a so that the side wall of the partition 2 intersects with the top end face 2c. A stepped locking portion 2d is formed at the portion where the coiled heating wire 5 is formed, and the coil-shaped heating wire 5 is connected to the frame body 1 by forming recessed grooves 1c at both corners on the same side of the top end surface 1a of the frame body 1. The outer periphery of the heating wire 5 is brought into contact with the locking step 2d formed in the partition 2 to the lattice-shaped space formed in The heating wire 5 is inserted in a row, the U-turn bent portion 5a of the heating wire 5 is inserted into the recesses 2b and 3b, the starting end and the end of the heating wire 5 are taken out of the groove 1c from the frame 1c, and the plurality of frame 1 Are connected to each other by fitting the respective top end surfaces 1a and 1c into and out of recesses.

[0008]

The frame 1 has a stepped recess 2b at its lower end.
And a partition 3 provided with a stepped recess 3b at the upper end thereof.

2. The process of fitting the heating wire 5 into the space partitioned by the partitions 2 and 3 is as follows.

That is, the heating wire 5 is inserted into the space at the side end partitioned by the partition 2, and the heating wire 5 protrudes from the space.
Bend at the protruding part. In this case, the bent U-turn bent portion 5a is fitted into a stepped recess 2b provided at the lower end of the partition 2. Next, the remaining heating wire 5 is fitted into the space partitioned by the partition 2 and the partition 3. In this case, the heating wire 5 protruding to the upper part is bent,
The turn bending portion 5a is fitted into a stepped recess 3b provided at the upper end of the partition 3. By repeating such work, the heating wire 5
Into the space on the other side end.

Then, both ends of the heating wire 5 are fitted into the concave grooves 1c provided in the frame 1, pulled out of the frame 1, and connected to a power source.

3. The process of removing the heating wire 5 inserted into the frame 1 is as follows.

That is, with the outer lid 6 having the same form as the frame 1 fitted to the frame 1, the frame 1 and the outer lid 6 are set in a state where the outer lid 6 is down. Then, the heating wire 5 comes off the frame 1 by its own weight, and falls off onto the outer lid 6.

4. As described above, the heating wire 5
Can be inserted into and removed from the frame 1, and a unit-type heat source can be provided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A side wall forming a rectangular frame 1 is provided with a step so that one top end surface 1a is higher inside, and the other top end surface 1b is stepped so as to be lower inside. Several rows of partitions 2 and 3 are laid horizontally and alternately in the frame 1 so that one of the top ends 2a and 3a of the partitions 2 and 3 is T-shaped at the same height as the top end 1a of the frame 1. Intersecting portions are alternately notched to form recesses 2b and 3b, and the other top end surfaces 2c and 3c of the partitions 2 and 3 intersect in a T-shape at the same height as the other top end surface 1b of the frame 1. And partition 2
The other top end surface 2c is formed wider than the one top end surface 2a to form a locking step 2d at the intersection of the side wall of the partition 2 and the top end surface 2c. A lattice-shaped insulator in which concave grooves 1c are missing at both corners on the same side,
A coiled heating wire 5 is inserted into a grid-like space formed in the frame 1. An engaging step 2 d in which the outer periphery of the heating wire 5 is formed in the partition 2.
, And inserted in a meandering shape.
Is inserted into the recesses 2b and 3b, the starting end and the end of the heating wire 5 are taken out of the groove 1c out of the frame 1, and the plurality of frames 1 are respectively separated from the top end surfaces 1a and 1c. Are connected to each other by fitting the concave and convex. Reference numeral 4 denotes a back plate.

[0016]

The effects of the present invention include the following.

The assembly is simple. That is, the frame 1
By assembling the heating wire 5 into the space defined by the partitions 2 and 3, the assembly is completed.

The replacement of the heating wire 5 is easy. That is, if the outer lid 6 is set to the lower state with the outer lid 6 being fitted, the heating wire 5 is separated from the frame 1 by its own weight, and is dropped onto the outer lid 6.

Any desired number of kilowatts can be obtained.
That is, since the heat source according to the present invention is a unit type and can be used by overlapping several units,
Assuming that one heat source is 3 kilowatts, 2 units are 6
Kilowatts of any desired calorific value can be obtained, such as 9 kilowatts in 3 watts (FIG. 1).

[Brief description of the drawings]

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

FIG. 2 is a front view of the present invention.

FIG. 3 is a sectional view taken along line A-A 'in FIG.

FIG. 4 is a sectional view taken along the line B-B 'in FIG.

FIG. 5 is a rear view of the present invention.

FIG. 6 is a perspective view showing a conventional invention.

[Explanation of symbols]

1 Frame 1a, 1b, Top end face 1c Groove
2, 3 partition 2a, 2c, 3a, 3c Top end face 2b, 3b, recess 2d, locking step 5, heating wire 5a, U-turn bent part

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-92936 (JP, A) JP-A-60-246582 (JP, A) Fully open Showa 60-142493 (JP, U) Really open Showa 51- 75067 (JP, U) Japanese Utility Model Showa 53-51640 (JP, U) Registered utility model 353694 (JP, Z1) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05B 3/06

Claims (1)

(57) [Claims] 1. A step is formed so that one top end surface 1a of a side wall forming a rectangular frame 1 is raised inside, and a step is formed so that the other top end surface 1b is lowered inside. 1
Inside, several rows of partitions 2 and 3 are laid in parallel and alternately,
One of the top end surfaces 2a, 3a of the partitions 2 and 3 is alternately notched at the same height as the top end surface 1a of the frame 1 and intersects in a T-shape to form recesses 2b, 3b. The other top end faces 2c and 3c of the frame 1 intersect in a T-shape at the same height as the other top end face 1b of the frame 1, and the other top end face 2c of the partition 2 is formed wider than the one top end face 2a. At the intersection of the side wall of the partition 2 and the top end surface 2c, a locking step 2
d, and a grid-shaped insulator in which concave grooves 1c are not provided at both corners on the same side of the top end surface 1a of the frame body 1, wherein the coil-shaped heating wire 5 is formed on the frame body 1. Heating wire 5
Of the heating wire 5 is inserted into the recesses 2b and 3b while the outer periphery of the heating wire 5 is inserted in a meandering shape while being in contact with the locking step 2d formed in the partition 2. A unit-type heat source characterized in that a starting end and a terminal end are taken out of the frame 1 from the groove 1c, and a plurality of frames 1 are connected to each other by fitting the respective top end surfaces 1a and 1c in a concave and convex manner.