JPS5822019Y2 - Installation structure of heater in air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mounting structure for a heater in an air conditioner, in which the heater is attached to an evaporator built into a main body casing of the air conditioner.

Conventionally, in this type of mounting structure, mounting plates 41 are provided on both sides of the Totoku heater 20 shown in FIG.
The mounting plate 41 is fixed to the support member 42 by tightening the mounting plate 41, and the heater 20 is mounted on the evaporator 1.

Therefore, the number of screws 43 used increases, the number of holes through which the screws 43 are inserted increases, and the number of man-hours increases.
When attaching or removing the heater 20 to the heater 20, it is necessary to tighten or loosen each screw 43 placed at the four corners, which poses the problem that the overall task is troublesome and takes a long time. Ta.

The present invention was devised to solve the above problems, and its purpose is to provide a simple structure for mounting a heater in an air conditioner, which allows the heater to be easily mounted to the evaporator.

That is, the mounting structure of the present invention is a mounting structure for a heater in an air conditioner in which a heater is mounted on an evaporator installed in a main body casing of the air conditioner, and the heater is mounted on opposing tube plates of the evaporator. A heater mounting stay is supported such that at least one end in the length direction of the stay is movable in the width direction of the tube sheet, and the heater is provided with:
A retaining piece that engages with the mounting stay is provided, and the heater is attached to the evaporator by sliding this engaging piece onto the stay, while the movable side end of the mounting stay is attached to the tube plate. The present invention is characterized in that a fixing means for fixing is provided, and by fixing the stay to the tube plate by the fixing means, the heater is locked to the tube plate.

Hereinafter, an embodiment in which the mounting structure of the present invention is applied to the air conditioning system shown in FIG. 1 will be described based on the respective drawings.

First, the air conditioner shown in FIG.
It consists of two air conditioning units B and C, and is assembled by connecting the air conditioning units B and C and attaching the fan unit I-A to the upper part.
B and C were separated and brought into the building, and assembled after being brought in.

The air conditioning units B and C are provided with main body casings 2 and 2 of the same shape with an open top, and these main body casings 2,
2 are arranged so that the front surfaces of the main body casings 2 are aligned on the same plane, and the upper and lower parts of the main body casings 2, 2 are connected by connecting members 3, 3, and on the upper parts of these main body casings 2, 2,
A box 5 of the fan unit A, which is open at the bottom and has an air outlet 4 at the top, is placed therein.

The air conditioning units B and C are each provided with a partition plate 6 at an intermediate height position within the main body casing 1, a machine chamber 7 is formed in the lower part of the partition plate 6, and a heat exchange chamber 8 is formed in the upper part of the partition plate 6. The chamber 7 includes a compressor 9, a water-cooled condenser 10, and a dryer filter 11. An expansion valve 12 and the like and an evaporator 1 are provided in the heat exchange chamber 8, respectively, and these refrigeration devices are connected by a refrigerant pipe 13.

The evaporator 1 is provided with support members 1b, lb on both sides such that a refrigerant coil (not shown) is disposed between the opposing tube plates 1a, 1a, and the main body casing 2 is provided by the support members 1b, lb. It is supported on both sides of the heat exchange chamber 8 and is arranged from the front side to the back side in an inclined state from one side to the other side of the heat exchange chamber 8.

A suction port is provided below the evaporator 1 in the heat exchange chamber 8 on the back surface of the main body casings 2, 2, and a filter 14 is attached to the suction port. A front plate 15 is removably attached, and by removing the front plate 15, the inside of the main body casing 2 can be serviced from the front.

16 is a control box, 17 is a switch box, 18 is a high-pressure switch, 19 is a pressure gauge, and M is a motor shared by the fans F and F.

Therefore, the present invention provides a mounting structure for the heater 20 in an air conditioner in which the heater 20 is mounted on the evaporator 1 installed in each main body casing 2 of the air conditioning units B and C, A mounting stay 21 of the heater 2° is supported on the facing tube sheets 1a, la so that at least one end side in the length direction of the stay 21 is movable in the width direction of the tube sheets 1a, la, The heater 20 is provided with a retaining piece 22 that engages with the mounting stay 21, and by sliding this engaging piece 22 onto the stay 21, the heater 20 is attached to the evaporator 1, and the A fixing means 23 such as a screw is provided to fix the movable end of the stay 21 to the tube plate 1a, and this fixing means 23
By fixing the stay 21 to the tube plate 1a, the heater 20 is locked to the tube plate 1a.

That is, to explain what is shown in FIGS. 1 to 4, the evaporator 1 has tube sheets la facing each other.

1a upward for a predetermined length, insert holes 24 into the extended portion of the tube sheet 1a located on the back side of the main body casing 2, and insert holes 24 into the extended portion of the tube sheet 1a located on the front side of the main casing 2 above and below. Two long holes 25 are provided in each direction (width direction).

The fixing means 23 is mainly a fixing screw (hereinafter referred to as 23
The elongated hole 25 has a width that allows the fixing screw 23 to be inserted therethrough, and a length that allows it to move a predetermined distance in the vertical direction.

and the mounting stay 2 installed above the evaporator 1.
Two supporting pieces 1 are used, and are formed from a U-shaped cross section, and each support piece 2 is bent downward at both ends in the length direction.
1a and 21a, and the external dimension in the length direction is made slightly shorter than the length between the tube sheets 1a and la, one support piece 21a is provided with a screw hole 21b for the fixing screw 23, and A pin 21c is provided on the other time support piece 21a so as to protrude outward in the length direction of the stay 21.

The two mounting stays 21.21 have U-shaped open sides facing each other, and the pin 21c is inserted into the insertion hole 24 of the tube sheet 1a. By insertion, the support piece 21a side provided with the screw hole 21d becomes swingable in the vertical direction (width direction) of the tube plate 1a, with the pin 21c as the axis.

The swingable mounting stay 21 is attached to the tube plates 1a and 1a by inserting the fixing screw 23 from the outside of the elongated hole 25 and tightening the screw into the screw hole 21b of the support piece 21a. It can be fixed.

The fixing screw 23 can be vertically adjusted from the upper end to the lower end of the elongated hole 25, and when adjusted to the upper end position, the stay 21 is positioned above the upper end surfaces of the tube plates 1a, la. When the stay 21 is adjusted to the lower end position, the stay 21 is positioned below the upper end surfaces of the tube plates 1a and la.The heater 20 attached to the mounting stay 21 uses steam, hot water, or electricity as a heat source. The engagement piece 22. is provided with support plates 26.26 on both sides, and the lower ends of the support plates 26.26 are bent inward to face each other, and the engaging pieces 22.26 engage with the mounting stays 21.21. 22, and by engaging and sliding the engaging pieces 22.22 with the mounting stays 21, 21, the heater 20 can be placed at a predetermined position on the upper surface of the evaporator 1. be.

However, as described above, the heater 2 is placed above the evaporator 1.
0, open the front plate 15 and insert the mounting stay 21.21 so that its movable end is aligned with the tube plate 1 as shown in FIG.
The engaging piece 22.22 of the heater 20 is engaged with the stay 21.21 while being held at a position above the upper end of the heater 20, and is slid to a predetermined position above the evaporator 1. In order to fix the heater 20 arranged in this way, move the movable end side of the mounting stay 21.21 to a position where the screw 23 comes into contact with the lower end surface of the long hole 25, and then
3 at the above-mentioned moving position.

Due to the movement, the heater 20 that engages with the stay 21.21 also moves, and the lower end of the heater 20 is brought into contact with the tube plate 1.
By tightening the screw 23 in this depressed state, the heater 20 is reliably prevented from moving in the longitudinal direction by the tube plate 1a, and is placed in a predetermined position above the evaporator 1. It can be held securely, and even if vibrations are repeatedly transmitted to the heater 20, the heater 20 will never deviate from the predetermined position.

Also, when removing the heater 20 from the evaporator 1, the main body casing 2
By loosening the fixing screw 23 from the front end of the tube plate 1a, lifting the heater 20, and positioning the mounting stay 21.21 above the upper end surface of the tube plate 1a, the heater 20 can be pulled out forward. The heater 2 in the state
It can be easily removed by grasping the 0 and pulling it out.

In the above explanation, the heater 20 is locked to the tube plate 1a by bringing the end surface of the engagement piece 22 on the tube plate 1a side, where the fixing screw 23 is provided, into contact with the inner surface of the tube plate 1a. As shown in FIG. 5, the engaging piece 22 provided on the heater 20 is extended outward in the length direction of the heater 20 by using a horizontal member 27 provided on the upper end surface of the plate 1a so as to be bent outward in the horizontal direction. Then, the lower surface of the extension member 28 thus extended is attached to the horizontal member 2.
Both members 2 are brought into contact with the upper surface of 7, and the supporting piece 21a is bowed downward, and the fixing screw 23 is tightened.
7.2B may be frictionally coupled.

In addition, in the above explanation, the work of attaching and detaching the heater 20 is performed using the front plate 15.
Although it has been made possible to easily do this from only the front by removing it, it may also be possible to do so by removing any wall plate other than the front plate 15 of the main casing 2.

In addition, in the above explanation, the applicable air conditioner is one in which two air conditioning units B and C are arranged side by side, but the same applies not only to one unit but also to one in which three or more air conditioning units are arranged side by side. The heater 20 can be easily attached or detached by removing the front plate 15.

As described above, according to the present invention, fixing means such as screws,
It is possible to reduce the number of parts and reduce the number of man-hours, and the heater can be attached and detached quickly and easily.The mounting stay can be moved in the width direction, and the stay can be moved and fixed to the tube plate by the fixing means. Since the heater is locked and fixed to the tube plate, the heater can be securely fixed, and even if the vibration rate is transmitted to the heater via the evaporator, the mounting position of the heater to the evaporator will not change. can be maintained reliably.

Moreover, according to the present invention, there is also an advantage that there is no need to provide a space for mounting the heater to the evaporator in the main body casing of the air conditioner in which the evaporator is installed.

[Brief explanation of the drawing]

Figure 1 is a front view with the front plate of an air conditioner to which the present invention has been cut out, Figure 2 is a perspective view showing the heater before it is installed on the evaporator, and Figures 3 and 4 are the heater. FIG. 5 is a partially explanatory diagram showing a state before and after attachment to an evaporator, FIG. 5 is a partially explanatory diagram showing another embodiment, and FIG. 6 is an explanatory diagram showing a conventional example. 1...Evaporator, 1a...Tube plate, 2...
...Body casing, 20...Heater, 2
1...Mounting stay 22...Engagement piece, 2
3... Fixing means (fixing screw).

Claims (1)

[Scope of utility model registration request] A mounting structure for the heater in an air conditioner in which the heater is mounted on an evaporator built into a main body casing of the air conditioner, wherein a mounting stay for the heater is mounted on opposing tube plates of the evaporator. The stay is supported such that at least one end in the length direction thereof is movable in the width direction of the tube sheet, and the heater is provided with an engagement piece that engages with the mounting stay, and the engagement piece is attached to the stay. attaching the heater to the evaporator by sliding;
A fixing means is provided for fixing the movable end of the mounting stay to the tube plate, and the heater is locked to the tube plate by fixing the stay to the tube plate by the fixing unit. Mounting structure of heater in air conditioner.