TWI651041B - Industrial machine - Google Patents

Abstract

The industrial machine includes: a fan unit (30) and a casing (21) provided with a fan unit storage portion (22) for storing the fan unit (30); wherein, the fan unit (30) has a casing portion (31) ) And a grip portion (342), the housing portion (31) is a housing fan (32), the grip portion (342) includes: protruding from the housing portion (31) and protruding from the housing portion (31) The protruding amount of the hook portion (341) is variable, and the grip portion (342) that accepts the operation of pushing the hook portion (341) into the housing portion (31); and the fan unit storage portion (22) has The engaging portion (24) engaged with the fixing hook (34) can be utilized by surface contact.

Description

   Industrial machinery   

The invention relates to an industrial machine that can replace a fan unit.

Industrial machines such as personal computers and programmable logic controllers are different from general electronic machines used in offices and the like, and they require continuous operation. Maintenance-free, which reduces the frequency of maintenance and inspection operations, has not used regular replacement parts such as fan units in the past. However, in recent years, with the advancement of processing of industrial equipment, heat generation inside the industrial equipment has become a problem, and applications of cooling fans to industrial equipment have been required.

Patent Document 1 discloses a structure in which an air-cooled fan unit is inserted into a fan unit insertion opening of a shelf belonging to an insertion rack provided in an electronic equipment case to cool the inside of the electronic equipment. Hereinafter, the air-cooled fan unit is simply referred to as a fan unit.

    [Prior Technical Literature]         [Patent Literature]    

Patent Document 1: Japanese Patent Laid-Open No. 2009-44193.

However, although the invention disclosed in Patent Document 1 described above is configured to easily attach and detach the fan unit from the electronic device, it does not have a structure for fixing the fan unit in the attaching and detaching direction. Therefore, the fan unit installed in the electronic device may shake in the direction of attachment and detachment.

The present invention has been developed in view of the above-mentioned problems, and its object is to obtain an industrial machine that is easy to attach and detach the fan unit and reduces the shaking of the installed fan unit in the attaching and detaching direction.

In order to solve the above-mentioned problems and achieve the object, the present invention is provided with: a fan unit; and a case provided with a fan unit housing portion that houses the fan unit. The fan unit has a housing portion and a fixing hook that houses the fan, and the fixing hook includes: a hook portion that protrudes from the housing portion and has a variable amount of protrusion from the housing portion; and receives the hook The part is pushed into the grip part of the housing part. The fan unit storage portion has an engaging portion that can be engaged with the fixing hook by surface contact.

The industrial machine of the present invention exerts the effect of easy installation and removal of the fan unit, and can reduce the effect of the shaking of the fan unit in the installation and removal direction after installation.

21‧‧‧Housing

21a, 241a, 341b, 346L, 346R

21b‧‧‧Bottom

22‧‧‧Fan unit storage

22a‧‧‧left wall

22b‧‧‧Right side wall

22d‧‧‧ Rear wall

22c‧‧‧Fan unit fixing guide

22d‧‧‧ Rear wall

22e, 35‧‧‧ connector

22f‧‧‧Notch

23‧‧‧recess

24‧‧‧Joint Department

25‧‧‧ substrate

30‧‧‧Fan unit

31‧‧‧Housing

31a‧‧‧left face

31b‧‧‧Right face

31c‧‧‧Front

31d‧‧‧Back

31e‧‧‧Convex

32‧‧‧Fan

33‧‧‧Guide rib

34‧‧‧Hook

36, 361, 362, 363 ‧‧‧ elastic members

51, 52, 53, 54

51a, 52a‧‧‧Central side

53a‧‧‧Left side

54a‧‧‧right side

70‧‧‧Support component

100, 110, 120, 130 ‧‧‧ industrial machines

241‧‧‧Cardboard

241b, 341a, 345L, 345R ‧‧‧ back

241c‧‧‧Snap back

341‧‧‧Hook

341L‧‧‧Left hook

341R‧‧‧Right hook

342‧‧‧ Grip Department

343‧‧‧Difference

344L‧‧‧left end

344R‧‧‧Right end

FIG. 1 is a perspective view schematically showing the configuration of an industrial machine according to Embodiment 1 of the present invention.

Fig. 2 is an exploded perspective view schematically showing the configuration of the industrial machine according to the first embodiment.

Fig. 3 is a schematic cross-sectional view of the industrial machine according to the first embodiment.

Fig. 4 is a schematic cross-sectional view of the industrial machine according to the first embodiment.

Fig. 5 is a side view schematically showing the structure of the fixing hook of the industrial machine according to the first embodiment.

Fig. 6 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the first embodiment.

Fig. 7 is a diagram showing the procedure for removing the fan unit from the industrial machine according to the first embodiment.

Fig. 8 is a diagram showing the procedure for removing the fan unit from the industrial machine according to the first embodiment.

Fig. 9 is a diagram showing the procedure for removing the fan unit from the industrial machine according to the first embodiment.

Fig. 10 is a diagram showing the steps of installing the fan unit to the industrial machine of the first embodiment.

FIG. 11 is a diagram showing the steps of installing the fan unit to the industrial machine of the first embodiment.

Fig. 12 is a diagram showing the steps of installing a fan unit on the industrial machine of the first embodiment.

Fig. 13 is a diagram showing a modification of the fixing hook of the industrial machine according to the first embodiment.

Fig. 14 is a schematic cross-sectional view of an industrial machine according to Embodiment 2 of the present invention.

Fig. 15 is a diagram showing a state where the hook portion of the industrial machine according to the second embodiment is arranged in the engaging portion.

Fig. 16 is a schematic cross-sectional view of an industrial machine according to Embodiment 3 of the present invention.

Fig. 17 is a schematic cross-sectional view of an industrial machine according to a third embodiment.

Fig. 18 is a perspective view of the configuration of an industrial machine according to Embodiment 3.

Fig. 19 is a front view schematically showing the structure of the fixing hook of the industrial machine according to the third embodiment.

Fig. 20 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the third embodiment.

Fig. 21 is a diagram showing the configuration of an industrial machine according to Embodiment 4 of the present invention.

Fig. 22 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the fourth embodiment.

Fig. 23 is a diagram schematically showing the installation state of the fixing hook of the industrial machine according to the fourth embodiment.

Fig. 24 is a diagram schematically showing the operation of the fixing hook of the industrial machine according to the fourth embodiment.

The industrial machine according to the embodiment of the present invention will be described in detail below based on the drawings. In addition, the present invention is not limited to this embodiment.

Embodiment 1

FIG. 1 is a perspective view schematically showing the configuration of an industrial machine according to Embodiment 1 of the present invention. Fig. 2 is an exploded perspective view schematically showing the configuration of the industrial machine according to the first embodiment. The industrial machine 100 of the first embodiment is supported by the support member 70 fixed to the back. The support member 70 is configured to be installed on a wall or the like in a factory, and is used to fix the industrial machine 100 at a predetermined position. Industrial machines are mostly fixed and installed in factories, which is one of the main reasons for the complicated maintenance of industrial machines.

The industrial machine 100 is equipped with a central processing unit (CPU), an application specific integrated circuit (ASIC) suitable for a specific purpose, a resistor or a capacitor inside the housing 21 Circuit board of class electronic parts. The electronic components on the circuit board generate heat during operation, and thus become the cooling target of the fan described later. In addition, the circuit board is formed into a singular or plural according to the arrangement area inside the casing 21.

The casing 21 of the industrial machine 100 is formed at the edge of the corner of the front face 21 a and the bottom face 21 b of the casing 21 that belong to the intersection of the face and the face, and the fan unit storage section 22 is formed. The fan unit 30 housed in the fan unit housing section 22 is formed as a part of the industrial machine 100 and operates. As shown in FIG. 2, the fan unit 30 can attach and detach the fan unit storage portion 22 from the front of the industrial machine 100. The fan unit 30 has a fan 32 built in the inside of the cylindrical casing portion 31 whose top and bottom surfaces are open. The fan unit 30 cools the object to be cooled in the industrial machine 100 by blowing the air sucked in from the bottom surface from the top surface, and sending the generated air flow into the industrial machine 100 by the fan 32. Therefore, the industrial machine 100 is supported by the support member 70 with a gap for air introduction provided below.

In the following description, the front-back direction refers to the direction along the Y-axis in FIG. 1, the left-right direction refers to the direction along the X-axis in FIG. 1, and the up-down direction refers to the first FIG. The direction of the Z axis. In addition, the + X direction is defined as left, the -X direction is right, the + Y direction is front, the -Y direction is rear, the + Z direction is up, and the -Z direction is down. In addition, the definitions of the front-back direction, the left-right direction, and the up-down direction in FIG. 1 are also applicable to the industrial machine 100 and the fan unit 30 in other drawings. Furthermore, the term "thickness" refers to the dimension indicating the front-rear direction, and the term "width" refers to the dimension indicating the left-right direction.

Figures 3 and 4 are schematic cross-sectional views of the industrial machine according to the first embodiment. Figure 3 shows a section along the line III-III in Figure 1, and Figure 4 shows a section along the line IV-IV in Figure 1. The housing portion 31 of the fan unit 30 is provided with a guide rib 33 on the left surface portion 31a and the right surface portion 31b. That is, the guide rib 33 is provided on the outer surface of the casing 31 and extends in the direction of attachment and detachment of the fan unit 30. In addition, a fixing hook 34 is provided at the upper end portion of the front surface portion 31c of the casing portion 31 of the fan unit 30. The fixed hook 34 is provided with a hook portion 341 and a grip portion 342 that is engaged with an engagement wall 241 described later formed above the fan unit housing portion 22 of the industrial machine 100, and the grip The portion 342 is grasped by the user during the loading and unloading operation. The hook 341 is provided behind the grip 342. That is, the grasping portion 342 and the hook portion 341 are arranged in the front-rear direction that belongs to the direction in which the fan unit 30 attaches and detaches the fan unit storage portion 22. A convex portion 31 e protruding rearward is provided on the rear portion 31 d of the housing portion 31 of the fan unit 30, and the connector 35 is arranged on the convex portion 31 e.

Fig. 5 is a side view schematically showing the structure of the fixing hook of the industrial machine according to the first embodiment. Fig. 6 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the first embodiment. The back surface 341a of the hook portion 341 is formed as a slope closer to the front as it goes to the upper end side. On the other hand, the front surface 341b of the hook portion 341 is formed so that the position in the front-rear direction does not change regardless of the position in the up-down direction. That is, the front surface 341b of the hook portion 341 is formed to be a plane perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit housing portion 22 and the fan unit 30 is detached. Therefore, the thickness of the hook portion 341 is smaller toward the upper end side.

As shown in FIG. 4, the fixing hook 34 is elastically pushed by the elastic member 36 provided on the front portion 31 c of the housing portion 31 of the fan unit 30. Although not shown in the drawings, the fixing hook 34 is provided with an anti-dropping structure that limits the maximum amount of projection of the housing portion 31 of the fan unit 30 from the upper end. Here, the maximum protrusion amount of the fixing hook 34 protruding from the upper end of the front surface portion 31c of the casing portion 31 of the fan unit 30 is set as the first protrusion amount. The direction in which the elastic member 36 urges the fixing hook 34 is perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit housing portion 22 and the fan unit 30 is detached. By the grasping of the grasping portion 342, the fixing hook 34 is pushed into the fan unit 30 against the force received from the elastic member 36, and the front portion 31c of the housing portion 31 of the fan unit 30 protrudes from the upper end portion The amount of protrusion of the fixing hook 34 becomes the second amount of protrusion. In addition, the second protrusion amount is smaller than the first protrusion amount. Furthermore, since the fixing hook 34 has a simple shape, the manufacturing cost can be kept low.

As shown in FIG. 3, the industrial machine 100 is provided with a fan unit fixing guide 22 c that engages with the guide rib 33 of the fan unit 30 on the left side wall 22 a and the right side wall 22 b of the fan unit housing 22. The fan unit fixing guide 22c restricts the movement of the fan unit 30 in the up-down direction, and guides the fan unit 30 along the guide rib 33 when the fan unit 30 is attached and detached. The clearance between the guide rib 33 and the fan unit fixed guide 22c in a state where the guide rib 33 is engaged with the fan unit fixed guide 22c is the design allowable value of the shaking of the fan unit 30 or less . Therefore, the industrial machine 100 prevents the fan unit 30 mounted on the fan unit housing portion 22 from shaking in the up and down directions.

In addition, as shown in FIG. 4, the industrial machine 100 includes a substrate 25 to which the connector 22 e is mounted behind the fan unit housing 22. At the rear wall 22d of the fan unit storage portion 22, a notch 22f is provided, and the connector 22e is disposed at a portion of the notch 22f. Therefore, the connector 22e can be attached and detached through the notch 22f from the front of the rear wall 22d of the fan unit housing 22. The industrial machine 100 has a recess 23 formed above the fan unit housing 22. The recess 23 reaches the front surface 21a of the housing 21 of the industrial machine 100, and the finger can be inserted into the space in the recess 23 from the front of the industrial machine 100.

The industrial machine 100 is located behind the concave portion 23 and includes an engaging wall 241 extending downward. The front surface 241a and the back surface 241b of the engagement wall 241 are unchanged regardless of the vertical position. That is, the front surface 241a and the rear surface 241b of the engaging wall 241 are perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit storage portion 22 to the fan unit 30. The industrial machine 100 is attached to the rear of the engagement wall 241 and forms an engagement portion 24 where the hook portion 341 is arranged. The engaging portion 24 has a concave shape. When the hook portion 341 is disposed on the engaging portion 24, the hook portion 341 and the engaging back surface 241c are brought into an engaged state. The gap between the hook portion 341 and the engaging wall 241 and the gap between the hook portion 341 and the engaging back surface 241c in the state where the hook portion 341 is arranged in the engaging portion 24 are the design tolerances of the shaking of the fan unit 30 Below the value. The engaging portion 24 of the industrial machine 100 is formed behind the concave portion 23, so that electronic components can be arranged on the left and right of the concave portion 23.

That is, the industrial machine 100 is configured such that the contact surface between the hook portion 341 and the engagement wall 241 and the contact surface between the hook portion 341 and the engagement back surface 241c are flat, and the hook portion 341 is disposed in the engagement portion In the state of 24, the gap between the hook portion 341 and the engaging wall 241 and the gap between the hook portion 341 and the engaging back surface 241c are equal to or less than the design allowable value of the shaking of the fan unit 30, whereby the fan unit 30 The fan unit storage portion 22 can be fixed without shaking.

The holding portion 342 is held to push the fixing hook 34 into the fan unit 30, and the protrusion amount of the fixing hook 34 protruding from the upper end portion on the front surface portion 31c of the casing portion 31 of the fan unit 30 is the second protrusion amount In this state, the engagement wall 241 does not interfere with the hook 341. That is, when the grip portion 342 is gripped and the fixed hook 34 is pushed into the fan unit 30, the hook portion 341 is disengaged from the engagement wall 241.

Fig. 7, Fig. 8 and Fig. 9 are diagrams showing the steps of removing the fan unit from the industrial machine according to the first embodiment. When the fan unit 30 is detached from the industrial machine 100, as shown in FIG. 7, while pushing the bottom surface of the fan unit 30 with a finger other than the thumb, the thumb is inserted into the recess 23. Below the industrial machine 100, a gap is secured to allow the fan unit 30 to introduce air, so that the bottom surface of the fan unit 30 can be pressed with a finger while the industrial machine 100 is fixed to the support member 70. Then, as shown in FIG. 8, the grip portion 342 is pushed down with the thumb to push the fixing hook 34 into the front portion 31 c, and the engagement of the hook portion 341 and the engagement wall 241 is released. The direction of attachment and detachment of the connectors 35 and 22e is the same as the direction in which the fan unit fixing guide 22c extends, so the fan unit 30 is pulled forward with the hook portion 341 disengaged from the engagement wall 241, by As shown in FIG. 9, the fitting of the connectors 35 and 22e will fall off. When the connectors 35 and 22e are fitted and pulled off, the fan unit 30 is pulled further forward, whereby the guide rib 33 is guided by the fan unit fixing guide 22c to slide the fan unit 30 toward the industrial machine 100 separate in front.

Fig. 10, Fig. 11 and Fig. 12 are diagrams showing the steps of attaching the fan unit to the industrial machine of the first embodiment. When the industrial machine 100 is to be mounted on the fan unit 30, the guide rib 33 is aligned with the fan unit fixing guide 22c, and as shown in FIG. 10, the fan unit 30 is pushed backward. Since the back surface 341a of the hook portion 341 of the fixing hook 34 is formed as an inclined surface, when the back surface 341a of the hook portion 341 touches the front surface 241a of the engaging wall 241, as shown in FIG. 11, the fixing hook 34 is pushed in While in the front portion 31c, the fan unit 30 approaches the rear wall 22d of the fan unit housing portion 22. As shown in FIG. 12, when the fan unit 30 reaches the rear of the fan unit housing portion 22, the connector 35 and the connector 22e are fitted. When the connectors 35 and 22e are fitted, since the hook portion 341 is located behind the engaging wall 241, the fixing hook 34 will protrude from the upper end portion of the front portion 31c by the elastic force of the elastic member 36 according to the first It protrudes by a certain amount so as to be disposed in the engaging portion 24, and the hook portion 341 and the engaging wall 241 are engaged. The engagement of the hook portion 341 with the engagement wall 241 thereby fixes the fan unit 30 to the industrial machine 100. Therefore, the industrial machine 100 according to the first embodiment can push the fan unit 30 into the fan unit accommodating portion 22 to install the fan unit 30.

Fig. 13 is a diagram showing a modification of the fixing hook of the industrial machine according to the first embodiment. The top surface 342a of the grip portion 342 of the fixing hook 34 is provided with a step 343 that protrudes in a direction perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit storage portion 22, whereby when the fan unit storage portion 22 is pulled out When the fan unit 30 is in a state where the finger buckles on the step 343, a forward force can be applied to the grip portion 342. Therefore, it is possible to suppress the sliding of the user's finger when the fan unit 30 is pulled out from the fan unit housing portion 22.

In the industrial machine 100 of Embodiment 1, the gap between the guide rib 33 and the fan unit fixing guide 22c in the state where the guide rib 33 is engaged with the fan unit fixing guide 22c, and the hook portion The gap between the hook portion 341 and the engaging wall 241 in the state where the 341 is arranged in the engaging portion 24 is the design allowable value of the shaking of the fan unit 30 or less, so the vibration resistance of the fan unit 30 is ensured. Therefore, the fan unit 30 of the industrial machine 100 according to the first embodiment can be easily attached and detached, and the fan unit 30 mounted on the fan unit storage portion 22 can be reduced in the direction of attachment and detachment.

The back surface 241b of the engaging wall 241 is perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit housing 22 and the fan unit 30 is unloaded. Therefore, even if the force in the direction of pulling out the fan unit housing 22 is applied to the fan unit 30 The fan unit 30 is also difficult to fall off. By providing a gap between the engaging portion 24 and the hook portion 341, it is possible to suppress an increase in the force required to release the engaging operation of the hook portion 341 and the engaging wall 241.

The industrial machine 100 according to Embodiment 1 is used to release the engagement between the hook portion 341 and the engaging wall 241 to grasp the position of the fan unit 30, and to extract the fan unit 30 from the fan unit housing portion 22 to grasp the fan The position of the unit 30 is the same, so after the engagement of the hook portion 341 and the engagement wall 241 is released, the fan unit 30 can be removed without replacing the fan unit 30.

The fan unit fixing guide 22c may be provided only on any one of the left and right walls 22a and 22b of the fan unit storage portion 22. In addition, a plurality of fan unit fixing guides 22c may be provided on at least one of the left and right walls 22a and 22b of the fan unit storage portion 22. That is, the fan unit fixing guide 22c only needs to be provided on at least one of the left and right walls 22a, 22b of the fan unit housing portion 22. When a plurality of fan unit fixing guides 22c are provided, the fan unit fixing guides 22c may not necessarily be configured to be bilaterally symmetrical, and are arranged in point symmetry with respect to the center when the fan unit housing portion 22 is viewed from the front, thereby removing and attaching the fan unit 30 At this time, the fan unit 30 becomes easy to slide.

The front surface 241a of the engaging wall 241 is inclined so that the thickness dimension becomes smaller toward the lower end side, whereby when the fan unit 30 is attached to the fan unit housing portion 22, the fixing hook 34 becomes easier to be pushed into the front portion 31c. Moreover, even if the lower part of the front surface 241a of the engagement wall 241 is rounded, the effect that the fixing hook 34 becomes easy to push into the front surface part 31c can be obtained.

Embodiment 2

FIG. 14 is a schematic cross-sectional view of an industrial machine according to Embodiment 2 of the present invention, and shows a cross-section corresponding to a position along the line IV-IV in FIG. 1. The industrial machine 110 of the second embodiment is different from the industrial machine 100 of the first embodiment in that the hook portion 341 of the fixing hook 34 is formed in a curved plate shape protruding rearward.

In the industrial machine 110 of the second embodiment, the dimension L ₁ of the engaging portion 24 in the front-rear direction is smaller than the distance L ₂ between the front end and the rear end of the hook portion 341.

The hook portion 341 is formed in a curved plate shape that protrudes rearward. Therefore, when the fan unit 30 is pushed into the fan unit housing portion 22, the fixed hook 34 is pushed into the front portion 31c. Therefore, the fan unit 30 can be attached to the industrial machine 110 by pushing the fan unit 30 into the fan unit housing 22 as in the industrial machine 100 of the first embodiment.

Fig. 15 is a diagram showing a state where the hook portion of the industrial machine according to the second embodiment is arranged in the engaging portion. In the industrial machine 110 of the second embodiment, the hook portion 341 is elastically deformed when it is disposed in the engaging portion 24, and is in a state of being in contact with both the engaging back surface 241c and the engaging wall 241 of the engaging portion 24. Therefore, when the hook portion 341 is disposed in the engaging portion 24, the gap between the hook portion 341 and the engaging back surface 241c and the gap between the hook portion 341 and the engaging wall 241 become zero.

The industrial machine 110 of the second embodiment makes the gap between the hook portion 341 and the engaging back surface 241c and the gap between the hook portion 341 and the engaging wall 241 zero, so that the shaking of the fan unit 30 in the attaching and detaching direction can be reduced compared to the first embodiment The industrial machine 100 is smaller.

Embodiment 3

FIG. 16 is a schematic cross-sectional view of an industrial machine according to Embodiment 3 of the present invention, and shows a cross-section corresponding to a position along the line III-III in FIG. 1. FIG. 17 is a schematic cross-sectional view of an industrial machine according to Embodiment 3, and shows a cross-section corresponding to a position along the line IV-IV in FIG. 1. Fig. 18 is a perspective view of the configuration of an industrial machine according to Embodiment 3. Fig. 19 is a front view schematically showing the structure of the fixing hook of the industrial machine according to the third embodiment. Fig. 20 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the third embodiment. The industrial machine 120 of Embodiment 3 is provided with a grip portion 342 at the center portion of the fixed hook 34 in the left-right direction, and hook portions 341 are provided at both sides of the grip portion 342. In addition, engagement portions 24 are provided on both sides of the recess 23 of the industrial machine 120. That is, the grip portion 342 and the hook portion 341 are arranged in a direction perpendicular to the direction in which the fan unit 30 is attached to and detached from the fan unit storage portion 22. In addition, the engaging wall 241 is not provided in the rear of the concave portion 23 but in front of the engaging portion 24. The other configuration is the same as the industrial machine 100 of the first embodiment.

In the industrial machine 120 of Embodiment 3, since the grip portion 342 and the hook portion 341 are not aligned in the front-rear direction, the size of the fan unit 30 in the front-rear direction can be smaller than that of the industrial machine 100 in Embodiment 1. In addition, since the engaging portion 24 and the recessed portion 23 in the industrial machine 120 are not aligned in the front-rear direction, the size in the front-rear direction can be smaller than the industrial machine 100 of the first embodiment.

Embodiment 4

Fig. 21 is a diagram showing the configuration of an industrial machine according to Embodiment 4 of the present invention. In the industrial machine 130 of the fourth embodiment, the hook portion 341 protrudes in the left-right direction of the fan unit 30. In addition, the industrial machine 130 is provided with engaging walls 241 on the left and right walls of the fan unit housing 22. In addition, in FIG. 21, the drawing omits the guide rib provided in the housing portion 31 of the fan unit 30.

Fig. 22 is a perspective view schematically showing the structure of the fixing hook of the industrial machine according to the fourth embodiment. The fixing hook 34 is composed of an independent member to constitute the grip portion 342 and the hook portion 341. The hook portion 341 is divided into a left hook portion 341L and a right hook portion 341R.

Fig. 23 is a diagram schematically showing the installation state of the fixing hook of the industrial machine according to the fourth embodiment. The grip portion 342 is elastically pushed by the elastic member 361 so as to protrude upward from the front portion 31c of the fan unit 30. The left hook portion 341L is elastically pushed in the left direction by the elastic member 362, and protrudes in the left direction by the first protrusion amount from the front portion 31c. The right hook portion 341R is elastically pushed in the right direction by the elastic member 363, and protrudes in the right direction by the first protrusion amount from the front portion 31c.

The grip portion 342 is provided with protrusions 51 and 52 protruding downward. The surfaces 51a, 52a of the center side in the left-right direction of the protrusions 51, 52 are inclined surfaces that are further away from the center in the lateral direction toward the lower end side, and the width becomes narrower toward the lower end side.

The left hook portion 341L is provided with a protrusion 53 protruding in the direction. The protrusion 53 is formed such that the left side surface 53a of the upper end side is closer to the inclined surface of the center of the fan unit 30, and the width is narrower as the upper end side is. The right hook portion 341R is provided with a protrusion 54 protruding upward. The protrusion 54 is formed so that the right side surface 54a of the upper end side is closer to the inclined surface of the center of the fan unit 30, and the width becomes narrower toward the upper end side.

The left end portion 344L of the left hook portion 341L is formed as an inclined surface closer to the front surface 346L toward the front end back surface 345L. The right end portion 344R of the right hook portion 341R is formed as an inclined surface closer to the front surface 346R toward the front end back surface 345R.

Fig. 24 is a diagram schematically showing the operation of the fixing hook of the industrial machine according to the fourth embodiment. FIG. 24 shows the state in which pressing force is applied to the grip portion 342. When the gripping portion 342 is pressed against the force of the elastic member 361, the surface 51a of the center side of the protrusion 51 of the gripping portion 342 abuts the left side surface 53a of the protrusion 53 of the left hook portion 341L, and is applied to the left hook portion 341L The force toward the center of the fan unit 30 causes the left hook portion 341L to be introduced into the front portion 31c, and the amount of protrusion from the front portion 31c is the second amount of protrusion. Similarly, the central surface 52a of the protrusion 52 of the grip portion 342 is in contact with the right side surface 54a of the protrusion 54 of the right hook portion 341R, and a force toward the center of the fan unit 30 is applied to the right hook portion 341R. 341R is introduced into the front portion 31c, and the protrusion amount protruding from the front portion 31c is the second protrusion amount. Therefore, by the grasping of the grasping portion 342, the engagement between the left hook portion 341L and the right hook portion 341R and the engagement wall 241 can be released. When the hand leaves the gripping portion 342, the gripping portion 342 is pushed back upward by the elastic member 361, and the left hook portion 341L is pushed back to the left by the elastic member 362, and the right hook portion 341R is pushed by The elastic member 363 is pushed back toward the right. Therefore, the amount of protrusion of the left hook portion 341L and the right hook portion 341R from the front portion 31c becomes the first amount of protrusion, and is in a state of being engaged with the engagement wall 241.

The back surfaces 345L and 345R of the left end portion 344L of the left hook portion 341L and the right end portion 344R of the right hook portion 341R are formed as slopes. Therefore, similar to the industrial machine 100 of the first embodiment, when the fan unit 30 is attached to the fan unit housing portion 22, the left hook portion 341L and the right hook portion 341R are pushed into the front portion 31c. Therefore, the industrial machine 130 of the fourth embodiment pushes the fan unit 30 into the fan unit housing portion 22, whereby the fan unit 30 can be installed.

The industrial equipment 130 of the fourth embodiment is similar to the industrial equipment 100 of the first embodiment, and the fan unit 30 is easy to attach and detach, and it is possible to reduce the shaking of the fan unit 30 in the attaching and detaching direction after installation. In addition, since the hook portion 341 protruding from the fan unit 30 in the left-right direction is engaged with the engaging wall 241, it is also possible to reduce the vertical shaking of the fan unit 30 after being installed.

The configuration shown in the above embodiment is an example showing the content of the present invention, and may be combined with other known technologies, or a part of the configuration may be omitted or changed without departing from the gist of the present invention.

Claims (7)

An industrial machine is provided with: a fan unit; and a housing provided with a fan unit housing portion that houses the fan unit; the fan unit includes a housing portion that houses a fan; and a fixing hook that includes a hook A hook portion which protrudes from the housing portion and the amount of protrusion from the housing portion is variable, and the grip portion accepts an operation to push the hook portion into the housing portion; The fan unit storage portion has an engaging portion that can be engaged with the fixing hook by surface contact. The industrial machine according to item 1 of the patent application range, wherein the contact surface of the fixing hook and the engaging portion is perpendicular to the direction in which the fan unit is attached to and detached from the fan unit housing portion. An industrial machine is provided with: a fan unit; and a housing provided with a fan unit housing portion that houses the fan unit; the fan unit includes a housing portion that houses a fan; and a fixing hook that includes a hook A hook portion which protrudes from the housing portion and the amount of protrusion from the housing portion is variable, and the grip portion accepts an operation of pushing the hook portion into the housing portion; The fan unit accommodating portion has an engaging portion that can be engaged with the fixing hook, the fixing hook is a curved plate shape that protrudes toward the mounting direction side of the fan unit to the fan unit accommodating portion, and the engaging portion The contact surface with the fixing hook is a surface perpendicular to the direction in which the fan unit is attached to and detached from the fan unit housing portion. The industrial machine according to item 1 of the patent application range, wherein the housing portion of the fan unit has a guide rib extending on the outer surface of the fan unit in the direction of attachment and detachment, and the fan unit housing portion has The fan unit fixing guide engages with the guide rib to restrict the vertical movement of the fan unit, and guides the fan unit along the guide rib. The industrial machine according to item 2 of the patent application scope, wherein the housing portion of the fan unit has a guide rib extending in the direction of attachment and detachment of the fan unit on the outer surface, and the fan unit storage unit has The fan unit fixing guide is engaged with the guide rib to restrict the movement of the fan unit in the up-down direction, and guides the fan unit along the guide rib. The industrial machine according to item 3 of the patent application range, wherein the housing portion of the fan unit has a guide rib extending in the direction of attachment and detachment of the fan unit on the outer surface, and the fan unit storage unit has The fan unit fixing guide engages with the guide rib to restrict the movement of the fan unit in the up-down direction, and guides the fan unit along the guide rib. The industrial machine according to any one of items 1 to 6 of the patent application scope, wherein a wall surface on the rear portion of the housing portion and the rear side of the fan unit housing portion is provided with the fan unit attached to the fan The connector to be engaged when the unit storage portion is attached and detached in the same direction as the attachment and detachment direction of the fan unit to the fan unit storage portion.