JP7294870B2 - Fluid machine and its assembly method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid machine that externally transmits operating data, and a method of assembling the same.

2. Description of the Related Art In fluid machinery, it is necessary to install a wireless communication device (antenna), for example, in order to externally transmit information such as operating data. This communication device is installed on the top cover of the fluid machine so that radio waves are not shielded and radio waves are obtained in all directions as much as possible. At this time, from the viewpoint of safety and appearance, it is desirable that the wiring of the communication device should not be exposed to the outside of the fluid machine.

As a background art related to this technical field, there is Patent Document 1, for example. Patent Document 1 discloses a compressor in which an electric motor, a compression mechanism driven by the electric motor, and a control device for controlling the driving of the electric motor are arranged in a sealed casing, and the casing includes a control device A signal line connected to a signal line connected to the casing and a signal line outside the casing are connected inside and outside the casing. It is described that it has a chemical part.

Japanese Unexamined Patent Application Publication No. 2010-1785

For example, when a communication device is installed at a factory and shipped, the wiring of the communication device is performed before shipment, and the conduction state of the communication device is confirmed by a commercial test. In order to guarantee continuity, it is desirable to ship the communication device without disconnecting the wiring after the continuity test. Here, for reasons such as visual inspection of abnormal points such as oil leaks, confirmation of motor nameplates, etc., and reduction of man-hours for correction when the test result fails, the upper surface of the housing of the fluid machinery is used in the commercial test. It is desirable to perform the assembly in a state in which the housing surfaces other than the bottom surface including the housing are not assembled. That is, after the upper surface of the housing is attached to the fluid machine after the commercial test, it is possible to install the wired communication device on the upper surface of the housing without removing the wiring, and furthermore, the mounting mechanism and the mounting method that prevent the wiring from coming out. Is required. Patent Document 1 does not consider such a configuration.

One of the objects of the present invention is to provide a fluid device in a state in which the continuity of the communication device of the fluid machine is guaranteed without impairing workability during commercial testing of the fluid machine, without exposing the wiring of the communication device to the outside of the fluid machine. To provide a fluid machine and a method for assembling the same, which can be shipped.

The present invention has been made in view of the above-described background art and problems. Connect the control unit and the communication device by wiring, attach the housing, take the communication device out of the housing through the opening without removing the wiring, and cover the opening with the communication device. Install in the housing.

According to the present invention, the fluid device is shipped in a state in which the continuity state of the communication device of the fluid machine is guaranteed, without impairing the workability during commercial testing of the fluid machine, without exposing the wiring of the communication device to the outside of the fluid machine. becomes possible.

1 is an overall external view of a compressor in Embodiment 1. FIG. FIG. 4 is a schematic diagram showing an assembly procedure of the antenna holder of the compressor according to the first embodiment; 4 is a schematic diagram of an antenna holder of the compressor in Embodiment 1. FIG. 4 is an exploded view of the antenna holder of the compressor in Embodiment 1. FIG. 4 is a top view of an antenna holder mounting hole portion on the top surface of the housing of the compressor in Embodiment 1. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following examples, an example using a compressor for generating compressed gas is shown as an example of implementation of the present invention. Further, as the compressor, a compressor having various compression mechanisms such as a positive displacement type and a rotary type (centrifugal type) that sucks gas such as air and discharges compressed air can be applied. Moreover, the present invention is not limited to compressors, but can be applied to general fluid machinery such as pumps, expanders, hydraulic motors, blowers, vacuum pumps, and refrigerators.

FIG. 1 shows an overall external view of the compressor in this embodiment. In FIG. 1, the compressor 1 mainly includes an antenna holder 20 having an antenna for transmitting and receiving communication radio waves, which is a communication device, and a compressor housing upper surface 30 to which the antenna holder 20 is attached.

That is, for example, in making a compressor compatible with a cloud monitoring system, it is necessary to mount an antenna for communication on the compressor. Regarding the installation position of the antenna, it is necessary to install it on the top surface of the compressor so that radio waves are not shielded and radio waves are acquired in all directions as much as possible. Also, when the antenna is installed at the factory and shipped, it is desirable to keep the height of the antenna as low as possible in order to prevent damage during transportation. In addition, from the viewpoint of safety and appearance, it is desirable not to expose the antenna wiring to the outside of the compressor. As described above, a thin planar board antenna is used as the antenna, and the antenna holder 20 made of resin for holding the board antenna is installed on the upper surface 30 of the compressor housing. Thereby, the compressor 1 can transmit the operation data of the compressor via the antenna.

Here, in order to ship a compressor equipped with an antenna, it is necessary to wire-connect the antenna and the compressor controller and check the conduction state of the antenna during a commercial test before shipping. It is desirable to leave the compressor control and antenna connected after commercial testing to ensure continuity. In addition, during commercial tests, the entire surface of the compressor housing, including the top surface, was removed from the outside for reasons such as visual inspection of abnormalities such as oil leaks, confirmation of motor nameplates, and reduction of man-hours for corrections when test results are NG. state. That is, after the top surface of the housing is attached to the compressor after the commercial test, the antenna in a wired state can be attached to the top surface of the housing via the antenna holder, and the wiring does not protrude. A mounting method is required.

FIG. 2 is a schematic diagram showing the assembly procedure of the antenna holder of the compressor in this embodiment, showing an enlarged view of the antenna mounting portion.

As described above, in order to conduct a continuity test of the antenna in the commercial test, it is necessary to attach the antenna holder with the antenna to the upper surface of the compressor housing while the antenna is wired. Therefore, by providing an antenna holder mounting hole 31 on the upper surface of the housing and allowing the antenna holder to pass from the inside of the antenna holder mounting hole 31, the wired antenna can be mounted without the wiring coming out. The mounting procedure will be described below with reference to FIG.

First, (a) shows a state in which the antenna holder 20 equipped with an antenna is wired to the compressor control unit 40 after completing the commercial test, and the housing upper surface 30 is used as the compressor housing in the post-commercial test process. It is in an assembled state. An antenna holder mounting hole 31 is provided in the upper surface 30 of the housing.

After that, in (b), the antenna holder 20 is passed through the antenna holder mounting hole 31 of the upper surface 30 of the housing while the wiring is maintained. That is, the antenna holder 20 is passed through the antenna holder mounting hole 31 and taken out of the housing without removing the wiring. At this time, the antenna holder 20 is covered with a protective film (plastic bag) to prevent damage. Then, in (c), after the antenna holder 20 passes through the antenna holder mounting hole 31, the protective film (plastic bag) is removed and the antenna holder 20 is taken out from the inside of the housing of the compressor 1 to the outside of the housing. Then, in (d), the antenna holder 20 is attached so as to cover the antenna holder attachment hole 31 and is installed on the upper surface 30 of the housing. As described above, in the assembly process of the compressor 1, the antenna holder 20 with the wired antenna mounted thereon is attached to the top surface 30 of the housing having the antenna holder attachment hole 31. As shown in FIG.

FIG. 3 is a schematic diagram of the antenna holder 20 in this embodiment. Moreover, FIG. 4 is an exploded view of the antenna holder 20 in this embodiment. As shown in FIG. 4, the antenna holder 20 is composed of a cover 21, a substrate antenna 22, and an antenna fixing portion . The board antenna 22 is connected to the connection terminal 25 by the wiring 24 . Also, as shown in FIG. 3, the connection terminal 25 is fixed to the antenna fixing portion 23 . When wiring with the compressor control section, the connection terminal of the wiring 26 of the compressor control section is connected to the connection terminal 25 of the board antenna 22 .

As shown in FIGS. 3 and 4, the shape of the antenna holder 20 has a width of W1, a length of L1, and a height of H1, where H1<L1<W1. When the antenna holder 20 is passed through the antenna holder mounting hole 31, the L1-H1 plane that does not include W1, which is the longest side of the antenna holder 20, is made horizontal to the upper surface 3 of the housing.

FIG. 5 is a top view of the antenna holder mounting hole portion of the housing top surface 30 of the compressor in this embodiment. The housing upper surface 30 has an antenna holder mounting hole 31 for mounting the antenna holder 20 . Let W2 be the width of the antenna holder mounting hole 31, and L2 be the length thereof. The relationship between the width W1 and the length L1 of the antenna holder 20 is W2<W1 and L2<L1. This is to ensure that the antenna holder mounting hole 31 is completely covered with the antenna holder 20 when the antenna holder 20 is mounted in the antenna holder mounting hole 31 . That is, the antenna holder mounting hole 31 has a smaller area than the area after mounting the antenna holder 20 . Also, in order to pass the antenna holder 20 through the antenna holder mounting hole 31, it is necessary to set W2 and L2 so that the dimension of the L1-H1 plane of the antenna holder 20 passes through.

As described above, according to the present embodiment, the antenna holder with the pre-wired antenna attached can be attached to the top surface of the casing after the top surface of the casing of the compressor has been attached, and the wiring of the antenna can be connected to the top surface of the compressor. It is possible to ship the compressor in a state in which the conduction state of the antenna of the compressor is guaranteed without exposing it to the outside.

In the first embodiment, the substrate antenna is mounted on the antenna holder 20 and is passed through the antenna holder mounting hole 31 . On the other hand, in this embodiment, an example in which the substrate antenna is passed through the antenna holder mounting hole 31 without being attached to the antenna holder 20 will be described.

In this embodiment, the antenna and the compressor control unit 40 are wired in FIG. 2A in the first embodiment, but the antenna is not attached to the antenna holder 20 .

Then, only the board antenna 22, which is the antenna shown in FIG. After that, the board antenna 22 passed through the antenna holder mounting hole 31 is mounted on the antenna holder 20 , and the antenna holder 20 is mounted on the antenna holder mounting hole 31 .

As described above, in this embodiment, only the board antenna 22 that is not attached to the antenna holder 20 is passed through the antenna holder mounting hole 31, so the antenna holder mounting hole 31 may be dimensioned so that the board antenna 22 can pass therethrough. Therefore, since the substrate antenna 22 is attached to the antenna holder 20 after passing through the antenna holder mounting hole 31, workability is inferior to that of the first embodiment, but there is an advantage that the antenna holder mounting hole 31 can be made smaller.

Although the embodiments have been described above, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations. Moreover, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment.

1: Compressor, 20: Antenna holder, 21: Cover, 22: Substrate antenna, 23: Antenna fixing part, 24, 26: Wiring, 25: Connection terminal, 30: Upper surface of housing, 31: Antenna holder mounting hole, 40 : Compressor controller

Claims (7)

A method for assembling a fluid machine having a housing and a communication device, comprising:
The housing has an opening on the top surface ,
wiring and connecting a control unit installed in the housing and the communication device before attaching the upper surface of the housing to the upper surface of the fluid machine ;
attaching the upper surface of the housing to the upper surface of the fluid machine ;
removing the communication device from the housing through the opening without removing the wiring;
The communication device has a cover, and by attaching the cover to the housing so as to cover the opening , the communication device wired with the control unit is installed in the housing. How to assemble the machine. A method for assembling a fluid machine according to claim 1,
A method for assembling a fluid machine, wherein the communication device comprises a substrate antenna, an antenna fixing portion for holding the substrate antenna, and a cover . A method for assembling a fluid machine according to claim 1,
A method of assembling a fluid machine, wherein the fluid machine is a compressor. A fluid machine comprising a housing,
Having a control unit and a communication device in the housing ,
The housing has a mounting hole with a width of W2 and a length of L2 ,
The communication device has a relationship of H1<L1<W1 where W1 is the width, L1 is the length, and H1 is the height,
The relationship between the mounting hole and the communication device is W2<W1, L2<L1, and W2 and L2 allow the communication device to pass through the mounting hole on the L1-H1 plane of the communication device. A fluid machine characterized by: The fluid machine according to claim 4,
The communication device comprises a substrate antenna, an antenna fixing portion for holding the substrate antenna, and a cover,
A fluid machine, wherein the mounting hole is provided on the upper surface of the housing. The fluid machine according to claim 4,
A fluid machine, wherein the fluid machine is a compressor. A fluid machine comprising a housing ,
Having a control unit and a communication device in the housing,
The communication device comprises a substrate antenna, an antenna fixing portion for holding the substrate antenna, and a cover,
The housing has a mounting hole, and the mounting hole is larger than the dimensions through which the substrate antenna can pass , and the communication device is mounted on the housing so that the cover covers the mounting hole. A fluid machine having a smaller mounting area than a cover .

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