JPH0638254Y2 - Heat exchange unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a heat exchange unit, and more specifically, it fixes an electrical equipment plate inside a housing and opens it close to an electrical equipment plate fixing position of this housing. In a heat exchange unit in which the above-mentioned opening is closed from the outside by a protective cover, when assembling the electrical component plate and the cover to the housing, the assembly structure of the heat exchange unit can be used to easily position and fix these members. It is a thing.

Conventional technology Refrigerators and freezers (hereinafter simply referred to as "refrigerators") that store a large amount of vegetables, fruits, and fresh foods such as meat and fish in a frozen state for a long period of time.
For example, there is known a large-scale commercial refrigerator in which the storage main body is composed of a prefabricated structure. In a large refrigerator of this type, a heat exchange unit that operates a cooling unit arranged in the refrigerator is arranged outside the storage body. In addition, an air conditioner that performs cooling and heating operation is also provided with a heat exchange unit that is connected to a cooling and heating unit inside the room. Since the present invention relates to an assembling structure of a heat exchange unit arranged outside a refrigerator or outdoors, a schematic configuration of the heat exchange unit will be described first.

FIG. 4 is a schematic configuration diagram showing a state where the housing 22 is removed from the heat exchange unit 10, and the inside of the unit is divided into a heat exchange chamber and a machine room by a partition plate 14 provided upright on the bottom plate 12. ing. A condenser 16 and a blower fan 18 are arranged on the bottom plate 12 on the heat exchange chamber side, and a compressor 20 is installed on the bottom plate 12 on the machine room side. A housing 22 provided with a top panel 21 surrounds various members installed on the bottom plate 12.

A rectangular concave portion 24 is provided inside the casing at an appropriate position on the side surface facing the partition plate 14 with the machine room in the casing 22 interposed therebetween, and the concave portion 24 is connected to an electrical equipment plate 34 described later. An opening 26 for drawing out a power supply system (not shown) is provided.
As shown in FIG. 5, a plurality of (two in the embodiment) through holes 28 are bored in the recess 24 located along the lower edge of the opening 26, and the through holes 28 are inserted from outside. The screw 30 is configured to fix one end of the electrical component plate 34. Through hole 28
6 is further sunk inside the housing as shown in FIG. 6 to prevent the head of the screw 30 inserted into the through hole 28 from protruding from the outer end surface of the recess 24.

Above the compressor 20, as shown in FIG. 4, an electric component plate 34, on which various electric components 32 such as a condenser for starting the compressor 20 and the blower fan 18 and a fuse are mounted, is detachably arranged. There is. As shown in FIG. 5, the electrical component plate 34 includes a mounting plate 36 that extends horizontally and a first mounting plate 38 that is formed at one longitudinal end of the mounting plate 36 and that extends vertically upward.
And a second mounting plate 40 that is formed at the other end of the mounting plate 36 and inclines downward. The upper end of the first mounting plate 38 is bent in a direction opposite to the extending direction of the mounting plate 36, and with the bent portion 38a hooked on the upper end of the partition plate 14, the bent portion 38a has a screw 42a. Partition plate through 14
Fixed to.

The lower end of the second mounting plate 40 has an opening in the housing 22.
The bent portion 40a is bent so that it can come into contact with the inner surface of the recess 24 located below 26, and a screw hole 44 is formed in the bent portion 40a at a position corresponding to the through hole 28 of the recess 24. However,
Screws 46 inserted into the through holes 28 from the outside of the recess 24 are screwed into the corresponding screw holes 44 as shown in FIG. 6, whereby the electrical component plate 34 is placed between the partition plate 14 and the housing 22. It can be positioned and fixed.

An opening is formed along the upper edge of the recess 24 in the housing 22.
A restricting member 48 is formed on the front surface of the device 26 so as to hang down by a predetermined length. The restricting member 48 functions to position the cover 50. Further, the recess 24 has a cover for closing the opening 26.
50 is detachably arranged. This cover 50 has a recess
The cover 50 is made of a plate material set to have an outer diameter that can be fitted into the recess 24, and the upper end of the cover 50 is fitted into the inner surface of the regulating member 48 (inside the housing 22) and the cover 50 is fitted into the recess 24. By doing so, the positioning is performed. The head of the screw 46 for fixing the electrical component plate 34 and the recess 24 is, as shown in FIG.
Since it does not project from the outer end surface of the recess 24, the cover 50 entirely contacts the outer end surface of the recess 24.

As shown in FIG. 5, a plurality of (two in the embodiment) through holes 52 are formed in the cover 50 at positions facing the recesses 24, and the screws 54 inserted into the through holes 52 correspond to the recesses 24. The cover 50 is positioned and fixed to the housing 22 by being screwed into the drilled screw hole 56. The cover 50 is formed with a lead-out port 58 that extends outward and opens downward.
The power cord (not shown) connected to the 34 is the outlet 58
It is configured to be led out to the outside of the housing 22 via.

When the heat exchange unit is assembled, first the partition plate 14, the condenser 16, the blower fan 18 and the compressor 20 are fixed to the bottom plate 12, and then the lower end of the housing 22 is fixed to the bottom plate 12. Fixed to. Next, the electrical equipment plate 34 is inserted into the housing through an opening (not shown) formed in the upper portion of the housing 22, and the first mounting plate 38 is screwed and fixed to the partition plate 14, and the second mounting is performed. The plate 40 is screwed and fixed to the inner surface of the housing 22. Then, by disposing the top panel 21 on the top of the housing 22, the assembly is completed.

In this case, the screw hole 44 of the second mounting plate 40 of the electrical component plate 34
And the operation of aligning the through hole 28 formed in the recess 24 of the housing 22 with each other must be performed in a sandwiching space inside the housing,
This was a time-consuming and tedious task. Also the case
After fixing the electrical equipment plate 34 to the 22, since the cover 50 is fixed to the recess 24 via the plurality of screws 54, the work man-hours and the number of parts increase incidentally, and the work efficiency decreases, and
There is a drawback that the manufacturing cost increases. Further, it is pointed out that fixing the cover 50 makes it impossible to confirm whether or not the electrical component plate 34 and the housing 22 are securely fixed.

DISCLOSURE OF THE INVENTION In view of the above-mentioned drawbacks inherent in the assembly and manufacture of the heat exchange unit, the present invention has been proposed in order to suitably solve the above problems. It is an object of the present invention to provide a means capable of reducing the cost by reducing the number of points.

Means for Solving the Problems In order to overcome the above-mentioned problems and achieve the intended purpose, the present invention is to install a partition plate on the inner bottom plate of the housing and to mount one end of an electrical component plate on which various electric components are mounted. While fixing to the partition plate, close to the electrical system opening opened in the housing,
In a heat exchange unit configured such that the other end of the electrical component plate is fixed to the inner surface of the housing and a protective cover that covers the opening is attached to the outer surface of the housing, an end portion of the electrical component plate can be held under the opening. The engaging portion is formed so as to extend inside the housing, and a cutout that can be engaged with the engaging portion is formed at the end portion, and when the notch is engaged with the engaging portion, An engaging hole and a through hole which are aligned with each other are formed corresponding to the end portion of the electrical equipment plate and the housing, and when the cover is attached, a through hole which is aligned with the through hole is drilled at a predetermined position of the cover. The engaging member is inserted into the through hole and the engaging hole in a state in which the notch is engaged with the engaging portion to position the electrical component plate and the opening of the housing is covered with the cover. It is characterized in that the electrical equipment plate and the cover can be fixed in place on the housing by wearing them. To.

Embodiments Next, a heat exchange unit according to the present invention will be described with reference to the accompanying drawings with reference to preferred embodiments. In addition,
The same members as those described in the related art with reference to FIGS. 4 to 6 are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 is an exploded perspective view of an essential part of a heat exchange unit according to a preferred embodiment of the present invention, in which a recess 24 located along the lower edge of the opening 26 in the housing 22 has a side surface L A locking portion 62 having a letter shape is formed so as to project inward of the housing.
As shown in FIG. 2, the distance between the locking portion 62 and the inner surface of the recess 24 (inside the housing 22) allows insertion of the bent portion 40a of the second mounting plate 40 in the electrical equipment plate 34. The size is set to Therefore, by inserting the bent portion 40a between the locking portion 62 and the recess 24, the bent portion 40a abuts the recess 24 in parallel. Further, as shown in FIG. 1, a cutout 64 is formed in the bent portion 40a, and the cutout 64 is engaged with the locking portion 62 to position the bent portion 40a in the lateral direction. Is done.

As shown in FIG. 1, the recess 24 is provided with a through hole 68 near the position where the locking portion 62 is formed. Also, the bent portion
In the 40a, a screw hole 66 whose axial center is aligned with the through hole 68 is formed in a state where the notch 64 in the bent portion 40a is engaged with the locking portion 62.

The cover 50 is positioned such that the upper end of the cover 50 is inserted into the housing 22 and the screw hole 66 and the through hole 68 are aligned with the shaft center when the cover 50 is fitted into the recess 24. A through hole 70 is provided. Therefore, as shown in FIG.
A screw 60 inserted through the through hole 70 of the cover 50 and the through hole 68 of the recess 24.
The respective members 34, 22, 50 are easily positioned and fixed by screwing into the screw hole 66 of the bent portion 40a. Also cover 50
The above-described screw 60 is most commonly used as a means for fixing the electric component plate 34 and the electrical component plate 34 to the housing 22, but the present invention is not limited to this, and the through holes 70, 68, 66 are used. Needless to say, it may be an engaging member such as a rivet that is engaged and fixed by expanding the tip after inserting. The cover 50 is provided with a power cord outlet 58 at a position deviated from the position where the through hole 70 is formed.

Operation of Embodiment Next, the actual assembling of the heat exchange unit according to the embodiment having such a configuration will be described.

First, the bottom plate 12 has a partition plate 14, a condenser 16, and a blower fan.
18. With the compressor 20 installed, the casing 22 is fixed to the bottom plate 12. Then, the electric component plate 34 on which various electric components (not shown) are mounted is positioned at the bent portion 38a of the first mounting plate 38 at the upper end of the partition plate 14, and the bent portion 40a of the second mounting plate 40 is positioned.
Is positioned inside the housing so that the notch 64 and the locking portion 62 engage with each other (see FIG. 2). At this time, the bent portion 40
Since the screw hole 66 formed in a and the through hole 68 formed in the recess 24 are aligned with each other, the complicated work of aligning the screw hole 66 and the through hole 68 can be omitted.

Then, the first mounting plate 38 is attached to the partition plate 14 via screws 42.
Fixed to. Further, the upper end of the cover 50 is inserted into the inside of the housing 22, and the cover 50 is fitted into the recess 24.
Then, as shown in FIG. 3, the screw 60 commonly inserted through the through holes 70 and 68 is screwed into the screw hole 66 of the bent portion 40a, whereby the electrical component plate 34 and the cover 50 are attached to the housing 22. It can be positioned and fixed.

Advantageous Effects of Invention As described above, according to the heat exchange unit of the present invention, the notch of the electrical equipment plate is simply engaged with the locking portion of the housing,
The electric component plate can be positioned at a predetermined position on the housing.
Therefore, assembling becomes easy, and the time required for this can be shortened. Moreover, since the electrical component plate, the housing, and the cover can be positioned and fixed by a single engaging member, the number of parts can be reduced and the cost can be kept low. Further, since the time required for assembly and removal can be shortened, improvement of work efficiency can be achieved at the same time.

[Brief description of drawings]

1 shows an embodiment of a heat exchange unit according to the present invention, FIG. 1 is a schematic perspective view showing an exploded main part of the heat exchange unit, and FIG. And FIG. 3 is a longitudinal sectional view of an essential part shown in a state of being assembled, FIG. 3 is a longitudinal sectional view of an essential part shown in a state of assembling an electrical component plate, a housing and a cover, and FIG. Exploded perspective view of the unit, fifth
FIG. 6 is a schematic perspective view showing the heat exchange unit shown in FIG. 4 in a disassembled state, and FIG. 6 shows the heat exchange unit shown in FIG. It is a principal part longitudinal cross section shown. 12 …… bottom plate, 14 …… partition plate 22 …… case, 26 …… opening 32 …… electrical parts, 34 …… electrical plate 40a …… folded part, 50 …… cover 62 …… locking part, 64 …… Notch 66 …… Screw hole, 68 …… Through hole 70 …… Through hole

Claims (1)

[Scope of utility model registration request] 1. A partition plate (14) is erected on an inner bottom plate (12) of a housing (22), and one end of an electrical component plate (34) on which various electric parts (32) are mounted is connected to the partition plate (14). ), The other end of the electrical component plate (34) is fixed to the inside surface of the housing in the vicinity of the electrical system opening (26) opened in the housing (22), and the outside surface of the housing is provided with the other end. In a heat exchange unit configured to attach a protective cover (50) covering the opening (26), an end (40a) of the electrical component plate (34) is provided below the opening (26).
And a notch (64) capable of engaging with the engaging portion (62) is formed in the end portion (40a) while the engaging portion (62) capable of holding the When the notch (64) is engaged with the locking portion (62), the engaging hole (66) and the through hole (68) aligned with each other are provided in the electrical equipment plate end (40a) and the housing (22). ), And the through hole (68) when the cover (50) is attached.
A through hole (70) aligned with the hole is formed at a required position of the cover (50), and the notch (64) is engaged with the locking portion (62) to position the electric component plate (34), Moreover, the opening (2
6) is covered with the cover (50), the engaging member (60) is inserted into and attached to the through holes (70, 68) and the engaging hole (66) so that the electrical component plate (34) and A heat exchange unit characterized in that the cover (50) and the housing (22) can be fixed in place.