JPH0932768A - Compressor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compressor in which miniaturization of a device can be achieved, fixing strength to bending moment or vibration load can be improved, and the degree of freedom in design can be drastically improved. SOLUTION: In a compressor, driving force is transmitted by a power transmitting means 4, and the compressor is provided with a main body casing 3, a front housing 2 provided on the power transmitting means 4 side of the main body casing 3, and a plurality of attaching bosses 6. Some of a plurality of attaching bosses 6 are provided on the outer surface of the front housing 2 and between the main body casing 3 and the power transmitting means 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compressor used in, for example, a vehicle air conditioner, and more particularly to a structure of its mounting portion.

[0002]

2. Description of the Related Art Conventionally, compressors used in vehicular air conditioners and the like are well known. This type of compressor is shown in FIG.
As shown in FIG. 3, the driving force is transmitted by the power transmission means 52, and the main body casing 50 and the front housing 51 provided on the power transmission means 52 side of the casing 50 are provided. In addition, the main body casing 50 has mounting bosses 53, 5 for fixing the compressor at a predetermined position.
4, 55 are provided. Mounting bosses 53, 54
Is provided so as to project radially outward of the compressor from the outer surface of the casing 50, and the mounting boss 55 is provided on the outer surface of the main casing 50 opposite to the front housing. The main body casing 50 has a suction port 5
6 and a discharge port 57 are provided.

[0003]

However, if the mounting bosses 53 and 54 are projected from the outer surface of the main body casing 50 in the radial direction of the compressor, the size of the protruding main body of the compressor is increased. There is a risk. Also, the bosses 53, 54
Mounting boss 5 on the inner side (center side) of the wall of the main body casing 50 to reduce the radial protrusion of the compressor.
Changing the installation positions of 3, 54 is not preferable because a thin portion is formed on the wall of the main body casing 50.
Also, the effect of downsizing cannot be expected so much.

Further, in the above-mentioned compressor, since the V belt (not shown) is engaged with the pulley 58 having the V groove of the power transmission means 52, the tension of the belt causes the compressor to operate. Bending moment force will act. However, as described above, the mounting bosses 53, 54
It is difficult to secure a large gap in the compressor axial direction between the mounting bosses 53, 54 and the mounting boss 55 in the configuration in which the boss is extended from the main body casing 50 in the outer diameter direction, and it is possible to compress against bending moment load and vibration load. It may not be possible to secure sufficient fixing strength for the machine.

Further, when the position of the power source is fixed in advance such as in the engine room of an automobile,
The distance A (hereinafter, simply referred to as a gauge line) from the power transmission means 52 to the mounting bosses 53 and 54 on the power transmission means 52 side is adjusted or designed in consideration of the accommodation space of the compressor. There is a need.

However, since the bosses 53 and 54 are provided in the main body casing 50, the design change for changing the positions of the bosses 53 and 54 breaks the basic shape of the compressor. Therefore, it is difficult to change the design while maintaining the basic shape of the compressor, and the degree of freedom is small.

An object of the present invention is to provide a compressor which can achieve downsizing of the device, improve the fixing strength against bending moment and vibration load, and greatly improve the degree of freedom in design. .

[0008]

In order to solve the above-mentioned problems, the compressor of the present invention is provided with a driving force transmitted by a power transmission means, and is provided on the main body casing and the power transmission means side of the main body casing. In a compressor having a front housing and having a plurality of mounting bosses, a part of the plurality of mounting bosses is provided on the outer surface of the front housing and between the main body casing and the power transmission means. It is characterized by being provided in.

Further, it is desirable that a part of the mounting boss is formed integrally with the front housing on the outer surface of the front housing.

In the compressor as described above, a part of the plurality of mounting bosses is provided on the outer surface of the front housing.
Further, it is provided so as to be located between the casing and the power transmission means. Therefore, as compared with the case where all the mounting bosses are provided on the outer surface of the main body casing, the amount of protrusion of the mounting bosses in the radial direction of the compressor is reduced. Further, since the mounting boss is provided on the power transmission means side from the front housing, the mounting boss provided on the front housing and the mounting boss provided on the main body casing side are arranged in the axial direction of the compressor. The spacing is increased. Therefore, size reduction mainly in the radial direction of the compressor can be achieved, and the fixing strength of the compressor against bending moment and vibration load can be significantly improved.

Further, by providing a part of the mounting boss on the outer surface of the front housing, the basic shape of the compressor remains substantially the same, that is, the basic shape on the main body casing side remains substantially the same. At the same time, the gauge line can be easily adjusted or changed, so that the degree of freedom in installation and design can be increased.

Further, since the mounting boss provided on the outer surface of the front housing is formed integrally with the front housing, a substantial increase in the number of parts and the number of manufacturing steps can be prevented, so that an increase in cost can be suppressed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a compressor according to the present invention will be described below with reference to the drawings. 1 and 2 show a compressor according to an embodiment of the present invention. In the figure, 1 indicates a compressor body. The compressor main body 1 is composed of a front housing 2 and a main body casing 3, and the casing 3 is closed by the front housing 2.

A clutch mechanism 4 as a power transmission means is provided on the side opposite to the casing of the front housing 2. The clutch mechanism 4 has a pulley 5 with which a V-belt (not shown) for transmitting a driving force from an external drive source (not shown) is engaged.

On the outer surface of the front housing 2,
Mounting bosses 6a, 6b for fixing the compressor in place
Is formed integrally with the front housing 2. Specifically, the mounting bosses 6a and 6b are located on the outer surface of the front housing 2 and between the casing 3 and the clutch mechanism 4 (FIG. 1). The mounting bosses 6a and 6b are provided so as to face each other as shown in FIG. Note that the mounting bosses 6a and 6b are provided with a meat sluice 7. And the meat slime 7
By forming the, the weight reduction of the entire compressor is promoted.

A terminal 9 on the compressor side of the connector is attached to the attachment boss 6a via a bolt 8. A fitting 12 is provided on the terminal 9. Then, the terminal 9 is fixed to the mounting boss 6a via the bolt 8 inserted through the mounting tool 12.

The terminal 9 on the compressor side of the connector is
An external terminal (not shown) of the connector is connected, and the connection electrically connects the compressor side circuit and the external side (for example, vehicle side) circuit. .

A compression element portion (not shown) is housed inside the casing 3. A suction port 10 and a discharge port 11 are provided on the outer surface of the casing 3. A mounting boss 6c is provided on the outer surface of the casing 3 opposite to the front housing.

That is, in the present embodiment, some of the mounting bosses 6a and 6b of the plurality of mounting bosses 6 provided in the compressor body 1 are provided in the front housing 2 and the other mounting bosses 6c are provided. Is provided in the casing 3.

In the compressor according to the present embodiment, a driving force from a driving source (not shown) such as a vehicle engine or a driving motor is transmitted to the pulley 5 of the clutch mechanism 4, and the driving force causes the compression element portion. Are being driven. Then, the fluid sucked into the compressor body 1 from the suction port 10 is compressed by the compression element portion, and the compressed fluid is sent from the discharge port 11 to the external path.

Further, in the compressor according to this embodiment, the mounting bosses 6a and 6b are provided on the front housing 2. That is, since the mounting bosses 6a and 6b protruding in the radial direction of the compressor are provided in the front housing 2, the mounting bosses 6a and 6b are attached to the casing 3.
Boss 6a in the radial direction of the compressor,
The size in the radial direction is reduced by the amount by which the protruding margin of 6b is reduced, and the miniaturization can be achieved.

Further, in the compressor according to this embodiment, the bending moment force acts on the compressor due to the tension of the V-belt engaging with the pulley 5. However, by providing the mounting bosses 6a and 6b on the front housing 2, it is possible to widen the axial distance between the mounting bosses 6a and 6b and the mounting boss 6c in the compressor, so that the belt tension acts on the compressor. It is possible to improve the fixing strength of the compressor against bending moment and vibration load.

Further, by providing the mounting bosses 6a and 6b on the outer surface of the front housing 2, the front housing 2 can be redesigned and the casing 3 and the compressor can be easily modified without changing the basic shape thereof. Since the gauge line can be adjusted, the degree of freedom in installation and design can be greatly improved.

Since the mounting bosses 6a and 6b are formed integrally with the front housing 2 on the outer surface of the front housing 2, the number of parts and the number of manufacturing steps are not increased. Therefore, cost increase can be effectively suppressed.

[0025]

As described above, according to the compressor of the present invention, a part of the mounting boss is provided on the outer surface of the front housing and between the main body casing and the power transmission means. Therefore, it is possible to obtain a compressor that can achieve downsizing of the device, improve the fixing strength against bending moment and vibration load, and also improve the degree of freedom in installation and design.

[Brief description of drawings]

FIG. 1 is a side view of a compressor according to an embodiment of the present invention.

2 is a front view of the compressor shown in FIG. 1. FIG.

FIG. 3 is a side view of a conventional compressor.

[Explanation of symbols]

 1 Compressor Main Body 2 Front Housing 3 Main Body Casing 4 Clutch Mechanism as Power Transmission Means 5 Pulley 6 Mounting Boss 7 Thin Meat 8 Bolts 9 Compressor Terminal of Connector 10 Suction Port 11 Discharge Port 12 Fittings

Claims (2)

[Claims] 1. A driving force is transmitted by a power transmission means,
In a compressor having a main body casing and a front housing provided on the power transmission means side of the main body casing and having a plurality of mounting bosses, a part of the plurality of mounting bosses is provided in the front housing. A compressor provided on the outer surface and between the main body casing and the power transmission means. 2. The compressor according to claim 1, wherein a part of the mounting boss is formed integrally with the front housing on an outer surface of the front housing.