JPH0532916U - Control device air filter fixing structure - Google Patents

Abstract

(57) [Summary] [Purpose] Removing the stopper member from the main unit,
Does not require rotation or slide mechanism of stopper member,
It is an object of the present invention to provide an air filter fixing structure for a control device, which enables easy attachment and replacement of the air filter, can be performed in a short time, and can reduce the number of parts. [Structure] Various constituent devices such as a hard disk device 13 and a printed wiring board 14 and electric parts are housed and arranged in the device body 1, and the hard disk device 13 is held by a bracket 15. An air filter 16 is arranged in the vicinity of the suction port 17 of the apparatus main body 1, and external air is introduced into the apparatus main body 1 via the air filter 16 by a fan 29 and is discharged to the outside from a discharge port 27 via a duct 26. A stopper portion 20 is integrally provided on the bracket 15, the stopper portion 20 is elastically deformed and engaged with the air filter 16, and the stopper portion 20 is fixed by a screw 22.
To fix the air filter 16 to the storage position.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to an air filter fixing structure of a controller suitable for being applied to an air conditioning controller or the like.

[0002]

[Prior art]

 Conventionally, an air-conditioning control device stores and arranges various components and electric parts such as a floppy disk device, a hard disk device, and a printed wiring board in the main body of the device, and among these various electric devices and parts. Since various types generate heat, external air is introduced into the main body of the device through an air filter and forcedly cooled by a fan. The air filter is generally of a cartridge type, and is usually arranged on the suction port side of the main body of the apparatus, and is regularly cleaned (for example, once every 3 to 6 months) or replaced. Therefore, the air filter mounting structure must be able to be easily installed and replaced in the normal maintenance area of the device in a short time. Therefore, conventionally, the air filter is housed along the guide rail in the main body of the apparatus, and the left and right or the central portion of the filter is fixed by the stopper member.

[0003]

[Problems to be solved by the device]

 However, in the air filter fixing structure in the conventional control device described above, a dedicated stopper member is used, so the number of parts is increased accordingly, and the stopper member mounting structure is used when mounting and replacing the filter. There was a problem that the work of attaching and detaching the device with the structure to be removed from the device is troublesome each time, and the structure of the structure to rotate or slide becomes complicated.

Therefore, the present invention has been made in view of the above-mentioned conventional problems, and the purpose thereof is to remove the stopper member from the main body of the apparatus or to require the rotation or slide mechanism of the stopper member. First, it is an object of the present invention to provide an air filter fixing structure for a control device, which enables easy attachment and replacement of the air filter and can be performed in a short time, and which can reduce the number of parts.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention accommodates and arranges various components, electric parts, etc. in the main body of the apparatus, installs an air filter in the suction port of the main body of the apparatus, and uses a fan to blow outside air through the air filter In a control device that is introduced into the main body and discharged to the outside through a duct, the air filter is inserted in the main body of the device so that it can be pulled out freely, and the holding member that holds the component equipment, electrical parts, etc. is elastically deformed It is characterized in that it has a free stopper part integrally, and that the air filter is locked at the storage position by this stopper part.

[0006]

[Action]

 In the present invention, the holding member holds components such as components and electric parts. Further, when the air filter is housed in the main body of the apparatus, the stopper portion of the holding member is elastically deformed and engages with the air filter to be locked at the housed position. Therefore, the holding member has two functions in one member, that is, a holding function for components and electric parts and a stopper function for the air filter.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. FIG. 1 is a cross-sectional view showing an embodiment of an air filter fixing structure of a control device according to the present invention, and FIG. 2 is a cross-sectional view showing a state in which the air filter is being pulled out when it is replaced. .. In these figures, 1 is a device body of the air conditioning control device, and the device body 1 is formed into a desk shape by an upper plate 2, a front plate 3, a rear plate 4, a bottom plate 5, a pair of left and right side plates 6, and the like. A CRT display 7 for displaying various information and images and a keyboard 8 for inputting kana, numbers, symbols and the like are installed on the board 2. The inner part of the device main body 1 is partitioned by front and rear partition plates 10 and 11 which face the upper intermediate plate 9 in the front-rear direction, and by the bottom plate 5, the middle plate 9 and front and rear partition plates 10 and 11. In the enclosed space 12, various components and electric components such as a hard disk device 13, a floppy disk device (not shown), a printed wiring board 14, a bracket 15 as a holding member for holding the hard disk device 13 and The air filter 16 is housed and arranged.

A suction port 17 is opened in the center of the bottom plate 5, and the air filter 16 covering the suction port 17 is provided in the space 12 and a guide rail 18 provided below the inner side surface of the side plate 6. It is housed so that it can be pulled out freely along with and is located directly below the bracket 15. An insertion / exhaust port 19 for the air filter 16 is formed in a lower portion of the front partition plate 10. On the front surface of the bracket 15, a stopper portion 20 that locks the air filter 16 at the storage position is integrally provided. The stopper portion 20 is made of a plate-like body which has elasticity and extends forward. The front end portion faces the insertion / discharge port 19 or protrudes forward of the front partition plate 10 and is bent downward at a substantially right angle. It integrally has the locked portion 20a. The locking portion 20a is held at a height position that does not hinder the mounting of the air filter 16 in the natural state of the stopper portion 20, and the air filter 16 is housed in the space 12 along the guide rail 18. When the stopper 20 is elastically deformed, the stopper 20 is pushed downward to abut and engage with the front surface of the air filter 16 and is fixed to the air filter 16 with a screw 22 so that the air filter 16 is engaged at a predetermined storage position. Stop. If the screw 22 is loosened when the air filter 16 is replaced, the locking portion 20a rises due to the elastic return of the stopper portion 20 and the engagement state with the air filter 16 is released, and the air filter 16 can be replaced. To do.

The front plate 3 is provided so as to be openable and closable or detachable so that the air filter 16 can be mounted and replaced through the insertion / discharge port 19. Further, an exhaust port 22 is opened at the upper end of the front plate 3, and the exhaust port 22 is normally closed by an end cover 23 and an opening / closing plate 24. The opening / closing plate 24 is bent to have a shape as shown in FIG. 1 and is rotatably held by a shaft 25 inside the front plate 3 so as to be held in a substantially vertical state. The outlet 22 is closed from the inside by a section.

A space between the upper plate 2 and the middle plate 9 forms a duct 26, and the duct 26 is connected to the discharge port 22 and a discharge port 27 formed in an upper portion of the back plate 4. Therefore, it communicates with the outside of the apparatus main body 1 and also communicates with the space 12 through a fan mounting hole 28 formed in the central portion of the intermediate plate 9. An exhaust fan 29 is attached to the fan attachment hole 28. When this fan 29 is rotationally driven, a negative pressure is generated in the space 12 so that the outside air 30 passes from the suction port 17 through the air filter 16 to the space 12 It is introduced into the inside to cool the hard disk device 13, the floppy disk device, the printed wiring board 14, etc., and is discharged from the discharge port 27 to the outside of the device main body 1 through the duct 26. When sucking the outside air 30, the air filter 16 removes foreign matters such as dust contained in the outside air 30 to protect the hard disk device 13 and the like.

Thus, according to the air filter fixing structure of the control device having such a configuration, the bracket 15 holding the hard disk device 13 is provided with the stopper portion 20, and the stopper portion 20 holds the air filter 16 at the storage position. Since it is configured so that it does not require a dedicated stopper member, the number of parts can be reduced, and the stopper portion 20 is elastically deformed when the air filter 16 is housed to lock the air filter 16. Since it does not need to be detached from the apparatus main body 1 or held by the rotating mechanism or the sliding mechanism, the structure is remarkably simple, and the filter mounting and replacement work is remarkably simple and easy.

[0012]

[Effect of the device]

 As described above, in the air filter fixing structure of the control device according to the present invention, the elastically deformable stopper portion is integrally provided on the holding member for holding the components, electric parts, etc., so that the air filter can be set at the storage position. Since it is locked, the holding member also serves as the stopper member, and the number of parts can be reduced by one. Further, since the stopper portion is elastically deformable and is elastically deformed when the air filter is locked, there is no need to remove it from the main body of the device or hold it by a rotating mechanism or a sliding mechanism. Simplification, air filter mounting and replacement operations can be performed quickly and easily.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of an air filter fixing structure of a control device according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which the air filter is being pulled out when it is replaced.

[Explanation of symbols]

 1 Device Main Body 13 Hard Disk Device 14 Printed Wiring Board 15 Bracket 16 Air Filter 17 Suction Port 20 Stopper 26 Duct 29 Fan

Claims (1)

[Scope of utility model registration request] 1. A device main body is provided with various constituent devices, electric parts and the like, an air filter is provided at a suction port of the device main body, and external air is introduced into the device main body through the air filter by a fan. In the control device adapted to be discharged to the outside through a duct, the air filter is inserted and arranged in the main body of the device so that the air filter can be drawn out, and the holding member for holding the constituent devices, electric parts, etc. has an elastically deformable stopper portion. An air filter fixing structure for a control device, wherein the air filter is integrally formed, and the stopper is used to lock the air filter at a storage position.