Motor drive device

Abstract

The present application provides a kind of motor driving device.This motor driving device can easily replace fan motor unit, and will not pollute the inside of motor driving device body when replacing fan motor unit.The motor driving device installed on the control panel includes: motor driving device body;Radiator, which is configured on the back side of motor driving device body;Fan motor unit, which is configured above the radiator, is set to be extracted in a way through the top of motor driving device body;And gasket member, which is unfolded along the extraction path of fan motor unit when extracting fan motor unit.

Description

TECHNICAL FIELD

[0001] The present application relates to a motor drive device. BACKGROUND

[0002] Generally, a motor drive device installed in a control panel of an industrial machine driven by a motor such as a machine tool has a motor drive device main body, a heat sink for radiating heat from the motor drive device main body, and a fan motor unit for cooling the heat sink. The fan motor unit is often stopped from rotating due to attachment of dirt, and at each time of rotation stop, the fan motor unit is detached from the motor drive device and replaced. Therefore, it is required to improve efficiency of the replacement work of the fan motor unit.

[0003] Conventionally, a technique is known in which the fan motor unit is configured to be detachable in a direction of a front side (a side on which the control panel is operated) in order to make the replacement work of the fan motor unit easy (for example, refer to Patent Literature 1).

[0004] Patent Literature 1: Japanese Patent No. 4734299 SUMMARY

[0005] PROBLEMS TO BE SOLVED BY THE INVENTION

[0006] Generally, the heat sink is disposed on a back side of the motor drive device main body, and the fan motor unit is disposed above the heat sink. Therefore, when the fan motor unit is pulled out toward the front side to be detached, the fan motor unit passes above the motor drive device main body. At this time, dirt, oil, or the like attached to the fan motor unit can fall from an upper vent of the motor drive device main body to an inside of the motor drive device main body, and pollute the inside of the motor drive device main body. Thus, it is desired to provide a motor drive device in which the fan motor unit can be easily replaced, and the inside of the motor drive device main body is not polluted when the fan motor unit is replaced.

[0007] SOLUTION TO PROBLEM

[0008] A technical solution of the present disclosure is a motor drive device installed in a control panel, wherein the motor drive device includes: a motor drive device main body; a heat sink disposed on a back side of the motor drive device main body; a fan motor unit disposed adjacent to the heat sink, configured to be pulled out in a manner of passing near the motor drive device main body; and a pad member that is deployed along a pulling-out path of the fan motor unit when the fan motor unit is pulled out.

[0009] For the above motor drive device, the one end portion of the pad member can be installed near the start of the extraction path, and the other end portion side of the pad member can be configured to expand along the extraction path.

[0010] For the above motor drive device, the other end portion of the pad member can have a holding member for holding the expanded state.

[0011] For the above motor drive device, the one end portion of the pad member can be installed near the start of the extraction path, and the other end portion of the pad member can be installed to the fan motor unit in a detachable manner, and the pad member can be configured to expand along the extraction path in conjunction with the extraction operation of the fan motor unit.

[0012] For the above motor drive device, the motor drive device main body can have a pair of wall plate members configured in a manner of sandwiching the extraction path of the fan motor unit from both sides, and the inner surfaces of the pair of wall plate members can each have a pair of rail members constituting the extraction path, and the pad member can expand along the pair of rail members.

[0013] For the above motor drive device, the pad member before expansion can be in any one of a roll shape, a folded shape, and a corrugated shape.

[0014] Effects of the Invention

[0015] According to one technical solution, a motor drive device can be provided, which can easily replace a fan motor unit and does not pollute the inside of a motor drive device main body when the fan motor unit is replaced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a side view showing a first embodiment of a motor drive device installed to a control panel.

[0017] Figure 2 is a side view showing a part of a motor drive device according to the first embodiment.

[0018] Figure 3 is a side view showing a state in which a pad member in a roll shape is expanded in the motor drive device according to the first embodiment.

[0019] Figure 4 is a side view showing a state in which a fan motor unit of the motor drive device according to the first embodiment is replaced.

[0020] Figure 5 is a perspective view showing a state in which a fan motor unit of the motor drive device according to the first embodiment is replaced.

[0021] Figure 6 is an enlarged side view showing a part of the motor drive device according to the second embodiment.

[0022] Figure 7 is an enlarged side view showing a roller-shaped pad member of the motor drive device according to the second embodiment.

[0023] Figure 8 is a side view showing a state of replacing a fan motor unit of the motor drive device according to the second embodiment.

[0024] Figure 9 is a side view showing a state of replacing a fan motor unit of the motor drive device according to the second embodiment.

[0025] Figure 10 is a perspective view showing the motor drive device according to the third embodiment.

[0026] Figure 11 is an enlarged side view showing a part of the motor drive device according to the third embodiment.

[0027] Figure 12 is a side view showing a state of replacing a fan motor unit of the motor drive device according to the third embodiment.

[0028] Figure 13 is a side view showing a pad member according to another embodiment.

[0029] Figure 14 is a side view showing a pad member according to still another embodiment.

[0030] Explanation of Reference Numerals

[0031] 1, 1A, 1B, motor drive device; 11, motor drive device main body; 11a, upper surface (of the motor drive device main body); 111, wall plate member; 111a, inner surface (of the wall plate member); 112, rail member; 12, heat sink; 13, fan motor unit; 2, 2A, 2B, pad member; 2a, one end portion (of the pad member); 2b, other end portion (of the pad member); 22, holding member; 100, control board; PI, start of extraction path. DETAILED DESCRIPTION

[0032] [First Embodiment]

[0033] Hereinafter, an embodiment of the present disclosure will be described with reference to the drawings. Figure 1 is a side view showing the first embodiment of the motor drive device mounted on a control board.Figure 2 is a side view showing a part of the motor drive device according to the first embodiment.

[0034] As shown in Figure 1 , the motor drive device 1 is mounted to a control panel 100. On the control panel 100, a motor drive device mounting panel 103 of the motor drive device 1 is mounted along a rear surface panel 102 arranged in parallel with respect to an openable and closable front surface panel 101.

[0035] The motor drive device 1 has: a motor drive device main body 11 provided inside the control panel 100 between the front surface panel 101 and the rear surface panel 102 in a manner that protrudes toward the front surface panel 101 side from the motor drive device mounting panel 103; a radiator 12 mounted to a back surface side of the motor drive device main body 11 (a side opposite to the motor drive device main body 11 across the motor drive device mounting panel 103); and a fan motor unit 13 arranged above the radiator 12.

[0036] The radiator 12 includes, for example, a plurality of fins extending in the up-and-down direction. However, the radiator 12 shown in each drawing is shown in a rectangular box shape without the fins for simplicity. The radiator 12 protrudes to the outside of the control panel 100 through an opening portion (not shown) formed in the rear surface panel 102 of the control panel 100. Therefore, the radiator 12 and the fan motor unit 13 are arranged outside the control panel 100 and covered with a radiator cover 200 mounted to the back surface side of the rear surface panel 102 (the outer surface side of the control panel 100).

[0037] As shown in Figure 2 , the fan motor unit 13 has: a fan motor 131, a support plate portion 132 that supports the fan motor 131, and a front plate portion 133 mounted to the support plate portion 132 and arranged on the front surface side (the front surface panel 101 side) of the fan motor 131. The support plate portion 132 has an air supply port (not shown) for circulating air in the radiator 12 by driving rotation of the fan motor 131.

[0038] The motor drive device mounting panel 103 has an opening portion 104 arranged above the motor drive device main body 11. The opening portion 104 has a size that allows the fan motor 131 and the support plate portion 132 of the fan motor unit 13 to pass therethrough without allowing the front plate portion 133 to pass therethrough. As shown in Figure 2 , in a mounted state in which the fan motor unit 13 supported by the support plate portion 132 is arranged above the radiator 12, the front plate portion 133 is arranged to completely cover the opening portion 104 provided in the motor drive device mounting panel 103 from the inside of the control panel 100.

[0039] The fan motor unit 13 is designed to be pulled out during replacement by extending the front plate portion 133 from its installed state toward the front surface plate 101, thereby allowing it to pass near the motor drive unit body 11. Specifically, the fan motor unit 13 can be pulled out above the motor drive unit body 11. In this motor drive unit 1, the upper surface 11a of the motor drive unit body 11 forms the extraction path for the fan motor unit 13 during replacement. In the extraction path of the fan motor unit 13, the opening 104 side is the starting point P1, and the front surface plate 101 side is the ending point P2. Furthermore, in the following description, the direction in which the fan motor unit 13 is pulled out along the extraction path from the starting point P1 side to the ending point P2 side is defined as "forward".

[0040] A pad member 2 is disposed near the beginning P1 of the extraction path. In this embodiment, the pad member 2 is composed of a strip wound into a roller shape and is disposed on the upper surface 11a of the motor drive unit body 11 near the opening 104. The length and width of the pad member 2 in the unfolded state are set such that it can cover the upper vent (not shown) provided on the upper surface 11a of the motor drive unit body 11 during the replacement operation of the fan motor unit 13, so as to prevent the pollutant X falling from the fan motor unit 13 from entering the interior of the motor drive unit body 11.

[0041] The material of the pad member 2 can be used without restriction as long as it can capture pollutants falling from the fan motor 131 during the replacement operation of the fan motor unit 13 and prevent them from falling into the interior of the motor drive unit body 11. Specifically, the pad member 2 can be a sheet made of any material such as metal, resin, rubber, paper, or cloth, or a sheet made of two or more composite materials. The pad member 2 can be elastic.

[0042] like Figure 2 As shown, one end 2a of the pad member 2 (the end near the beginning P1 of the extraction path) is installed near the beginning P1 of the extraction path. Specifically, "near the beginning P1 of the extraction path" refers to the area between the motor drive mounting plate 103 and the upper vent, which is the upper vent closest to the opening 104 among a plurality of upper vents (not shown) disposed on the upper surface 11a of the motor drive body 11. Because one end 2a of the pad member 2 is installed near the beginning P1 of such an extraction path, the upper vent of the upper surface 11a of the motor drive body 11 can be covered leak-free when the pad member 2 is unfolded. In this embodiment, one end 2a of the pad member 2 has a mounting member 21. The pad member 2 is mounted to the motor drive mounting plate 103 below the opening 104 using this mounting member 21.

[0043] The mounting member 21 can be fastened to the motor drive device mounting plate 103 with a fastening member such as a screw, an adhesive, or the like, or can be detachable with respect to the motor drive device mounting plate 103. In the case where the mounting member 21 is detachable with respect to the motor drive device mounting plate 103, the mounting member 21 can be composed of, for example, a hook or the like that is engaged with an engagement portion (not shown) provided on the motor drive device mounting plate 103, a magnet or the like that is attracted to the motor drive device mounting plate 103, or the like. Since the mounting member 21 is detachable, the spacer member 2 can be replaced.

[0044] An engagement member 22 is provided at the other end portion 2b (end portion on the side of the terminal end P2 of the extraction path) of the spacer member 2. The engagement member 22 is used to maintain the expanded state of the roll-shaped spacer member 2 when it is expanded on the upper surface 11a of the motor drive device main body 11. The engagement member 22 can be composed of, for example, a hook or the like that is engaged with an engagement portion (not shown) provided at the terminal end P2 of the extraction path, a magnet or the like that is attracted to the motor drive device main body 11 corresponding to the terminal end P2 of the extraction path, a face connector, or the like.

[0045] The spacer member 2 mounted to the motor drive device mounting plate 103 by the mounting member 21 is wound into a roll shape by rolling up the other end portion 2b side toward the mounting member 21, and is disposed at the start end PI of the extraction path. Therefore, the operator unwinds the other end portion 2b side of the spacer member 2 toward the front, thereby expanding the spacer member 2 from the start end PI to the terminal end P2 of the extraction path. Thus, the spacer member 2 can cover the entire face of the upper surface 11a of the motor drive device main body 11.

[0046] Next, the use Figures 3-5 The replacement work of the fan motor unit 13 of the motor drive device 1 thus configured will be described. Figure 3 is a side view showing the state in which the motor drive device according to the first embodiment is expanding the roll-shaped spacer member. Figure 4 is a side view showing the state in which the fan motor unit of the motor drive device according to the first embodiment is replaced. Figure 5 is a perspective view showing the state in which the fan motor unit of the motor drive device according to the first embodiment is replaced.

[0047] As shown in Figure 3 When the fan motor unit 13 is replaced, first, the operator extracts the other end portion 2b side of the spacer member 2 wound into a roll shape at the start end PI of the extraction path while unwinding it toward the front, thereby gradually expanding it.

[0048] After the mat member 2 is completely deployed, the operator hooks and secures the holding member 22 to the motor drive device main body 11, for example. Thereby, the mat member 2 is maintained in a deployed state, and the state in which the upper surface 11a of the motor drive device main body 11 is covered as a whole is maintained.

[0049] After that, the operator pulls out the front plate portion 133 of the fan motor unit 13 toward the front. Thereby, as shown in Figure 4 and Figure 5 , the fan motor unit 13 is pulled out toward the front from the opening portion 104 along the pull-out path to the terminal P2. At this time, as shown in Figure 4 , there is a case in which the contaminant X adhering to the fan motor 131 falls downward. However, since the contaminant X that falls is caught by the mat member 2 deployed along the pull-out path of the fan motor unit 13, it does not enter the inside of the motor drive device main body 11.

[0050] Thus, according to the motor drive device 1, the inside of the motor drive device main body 11 is not contaminated when the fan motor unit 13 is replaced. Moreover, since the fan motor unit 13 can be detached only by being pulled out toward the front from the opening portion 104, the fan motor unit 13 is easily replaced. After a new fan motor unit is installed through the opening portion 104, the mat member 2 is again wound into a roll shape.

[0051] In the present embodiment, the mat member 2 in a roll shape is constituted by winding the holding member 22 side provided at the other end portion 2b toward the mounting member 21 side. However, although not shown, the mat member 2 in a roll shape can also be constituted by winding the mounting member 21 side toward the holding member 22 side. Thereby, the mat member 2 can be deployed only by pulling out the holding member 22 toward the front. In this case, the mounting member 21 side of the mat member 2 is urged in the winding direction by an elastic member such as a spring, and thereby the mat member 2 in a deployed state can be easily returned to the original roll shape.

[0052] [2nd Embodiment]

[0053] Figure 6 is an enlarged view showing a part of the motor drive device according to the 2nd embodiment. Figure 7 is an enlarged view showing a mat member in a roll shape of the motor drive device according to the 2nd embodiment. Since the portions with the same reference numerals as those of the motor drive device 1 according to the 1st embodiment are portions with the same structure, the description of these portions is referred to the above description, and is omitted in the following description.

[0054] The motor drive device 1A according to the second embodiment differs from the motor drive device 1 according to the first embodiment in that the other end portion 2b of the pad member 2 is detachably attached to the fan motor unit 13 at the other end portion 2b of the pad member 2.

[0055] The one end portion 2a of the pad member 2 according to the present embodiment is also attached in the vicinity of the start end PI of the extraction path. Specifically, the one end portion 2a of the pad member 2 is fixed to the winding shaft 23 disposed in the vicinity of the start end PI of the extraction path. The both end portions of the winding shaft 23 are rotatably held between a pair of shaft support plates 24, 24 provided to the motor drive device mounting plate 103 in a manner protruding toward the front. Alternatively, the winding shaft 23 can be detachable with respect to the shaft support plates 24, 24.

[0056] The other end portion 2b of the pad member 2 according to the present embodiment has an engagement attachment member 25. The other end portion 2b of the pad member 2 is attached to the front plate portion 133 of the fan motor unit 13 in a detachable manner by the engagement attachment member 25. The engagement attachment member 25 can be constituted by, for example, a hook or the like engagement member that engages with an engagement portion (not shown) provided to the front plate portion 133, a magnet that is attracted to the front plate portion 133, a face connector, or the like.

[0057] Next, the replacement work of the fan motor unit 13 of the motor drive device 1A thus configured will be described. Figure 8 and Figure 9 Next, the replacement work of the fan motor unit 13 of the motor drive device 1A thus configured will be described. Figure 8 is a side view showing the state of replacement of the fan motor unit of the motor drive device according to the second embodiment. Figure 9 is a side view showing the state of replacement of the fan motor unit of the motor drive device according to the second embodiment.

[0058] In the present embodiment, when the fan motor unit 13 is replaced, as shown in Figure 8 , the operator gradually extracts the front plate portion 133 of the fan motor unit 13 toward the front.

[0059] Since the other end portion 2b of the pad member 2 is attached to the front plate portion 133 of the fan motor unit 13 by the engagement attachment member 25, if the fan motor unit 13 is extracted toward the front, the pad member 2 is unwound by the rotation of the winding shaft 23. Thus, the other end portion 2b of the pad member 2 is also gradually extracted together with the fan motor unit 13. As a result, as shown in Figure 9 , the pad member 2 is gradually spread along the extraction path in conjunction with the extraction operation of the fan motor unit 13.

[0060] During the extraction of the fan motor unit 13 (during the spreading of the pad member 2), as shown in Figure 9As shown, pollutant X attached to the fan motor 131 falls downwards. However, since the falling pollutant X is captured by the pad member 2 that unfolds in conjunction with the withdrawal action of the fan motor unit 13, it does not enter the interior of the motor drive unit body 11.

[0061] Therefore, the electric motor drive device 1A also has the same effect as the electric motor drive device 1 according to the first embodiment. Moreover, since the pad member 2 is deployed in conjunction with the extraction operation of the fan motor unit 13, the operation of deploying the pad member 2 before the replacement operation of the fan motor unit 13 is not required, and the pad member 2 is not forgotten.

[0062] After the fan motor unit 13 has been completely removed, the operator removes the fan motor unit 13 by releasing the engagement between the locking mounting member 25 and the fan motor unit 13. Then, the pad member 2 is wound back onto the winding shaft 23 to form a roller. Although not shown, the winding shaft 23 can also be forceped in the winding direction using an elastic member such as a spring. Thus, the pad member 2, now released from engagement with the fan motor unit 13, can be easily wound onto the winding shaft 23.

[0063] [Third Implementation]

[0064] Figure 10 This is a perspective view of the electric motor drive device according to the third embodiment. Figure 11 This is an enlarged side view showing a portion of the electric motor drive device according to the third embodiment. Since the parts with the same reference numerals as those in the electric motor drive device 1 according to the first embodiment are parts with the same structure, the description of these parts refers to the above description and is omitted in the following description.

[0065] In the electric motor drive device 1B according to the third embodiment, the main body 11 of the electric motor drive device has a pair of wall panel members 111, 111 arranged in such a way that the fan motor unit 13 is sandwiched between the two sides for extraction.

[0066] like Figure 10 As shown, the wall panel members 111, 111 are formed by extending the two side surfaces 11b, 11b of the motor drive unit body 11 upward from the upper surface 11a along the extraction direction of the fan motor unit 13. The opening 104 of the motor drive unit mounting plate 103 is disposed between the wall panel members 111, 111.

[0067] Rail members 112, 112 are provided on inner surfaces 111a, 111a of the pair of wall panel members 111, 111, respectively. The pair of rail members 112, 112 are of the same configuration, and protrude from the inner surfaces 111a, 111a of the wall panel members 111, 111 in a plate shape so as to abut against lower surfaces of both end portions of the fan motor unit 13 drawn out forward from the opening portion 104.

[0068] As shown in Figure 11 , one end portions 112a, 112a (end portions on the side of the start end PI of the drawing-out path) of the rail members 112, 112 approach the motor drive device mounting plate 103. The rail members 112, 112 are formed so as to be distanced upward from the upper surface 11a of the motor drive device main body 11 as they travel from the one end portions 112a, 112a to the other end portions 112b, 112b (end portions on the side of the end end P2 of the drawing-out path) disposed in the front.

[0069] The rail members 112, 112 constitute the drawing-out path of the fan motor unit 13. Thus, the fan motor unit 13 drawn out forward from the opening portion 104 is guided along the rail members 112, 112, and gradually distanced upward from the upper surface 11a of the motor drive device main body 11. Therefore, the fan motor unit 13 can be easily detached, and the replacement work becomes easier.

[0070] With regard to the motor drive device IB, a pad member 2 having the same structure as that of the first embodiment is disposed in the vicinity of the start end PI of the drawing-out path. Further, a plurality of upper air vents 113 are provided on the upper surface 11a of the motor drive device main body 11 in the vicinity of the motor drive device mounting plate 103.

[0071] Next, the replacement work of the fan motor unit 13 of the motor drive device IB thus configured will be described. Figure 12 Figure 12 is a side view showing the state of replacing the fan motor unit of the motor drive device according to the third embodiment.

[0072] When replacing the fan motor unit 13, as with the first embodiment, first, the operator draws out the pad member 2 from the other end portion 2b side while unwinding it toward the front, thereby unfolding the pad member 2 along the pair of rail members 112, 112.

[0073] When the pad member 2 is completely unfolded, the pad member 2 covers the upper surface 11a of the motor drive device main body 11 along the rail members 112, 112. The holding members 22 of the pad member 2 hold the unfolded state of the pad member 2 by being caught against the other end portions 112b, 112b of the rail members 112, 112, and the like. ​

[0074] Then, the operator extracts the front plate portion 133 of the fan motor unit 13 toward the front, thereby gradually extracting the fan motor unit 13 upward from the opening portion 104 along the extraction path constituted by the rail members 112, 112. In this case, since the contaminant X (not shown in the figure) falling from the fan motor 131 is also caught by the mat member 2, it does not enter the inside of the motor drive device main body 11. Figure 12

[0075] Thus, also in this motor drive device IB, the inside of the motor drive device main body 11 is not contaminated when the fan motor unit 13 is replaced. Moreover, the fan motor unit 13 can be detached toward the upper side guided by the pair of rail members 112, 112 by being extracted from the opening portion 104 toward the front. Therefore, according to this motor drive device IB, the replacement of the fan motor unit 13 can be easily performed compared to the first embodiment.

[0076] Further, in this motor drive device IB, the mat member 2 in the form of a roll can be the mat member 2 wound around the winding shaft 23 shown in the second embodiment.

[0077] [Another embodiment of the mat member]

[0078] Figure 13 is a side view showing a mat member according to another embodiment. In Figure 13 the figure, the opening portion 104 and the fan motor unit 13 are omitted.

[0079] This mat member 2A has a folded form. The mat member 2A is folded near the upper surface 11a of the motor drive device main body 11 of the motor drive device mounting plate 103 and stacked toward the upper side.

[0080] The mat member 2A is mounted to the motor drive device mounting plate 103 by the mounting member 21 provided at one end portion 2a. Thus, the mat member 2A, like the mat member 2 shown in the first embodiment, can be unfolded by the operator extracting the other end portion 2b of the mat member 2A. The other end portion 2b of this mat member 2A can also be mounted to the fan motor unit 13 in a detachable manner by the engagement mounting member 25, like the second embodiment.

[0081] Figure 14 is a side view showing a mat member according to another embodiment. In Figure 14 the figure, the opening portion 104 and the fan motor unit 13 are omitted.

[0082] ​The gusset member 2B has a corrugated shape. The gusset member 2B is folded at the upper surface 11a of the motor drive device main body 11 near the motor drive device mounting plate 103, and is stacked toward the front.

[0083] The gusset member 2B is mounted to the motor drive device mounting plate 103 by the mounting member 21 provided at the one end portion 2a. Thus, the gusset member 2B, like the gusset member 2 of the first embodiment, can be unfolded by the operator pulling out the other end portion 2b of the gusset member 2B. The other end portion 2b of the gusset member 2B can also be mounted to the fan motor unit 13 in a detachable manner by the engagement mounting member 25, like the second embodiment.

[0084] The mounting member 21 provided at the one end portion 2a of the gusset member 2, 2A, 2B can be mounted to the upper surface 11a of the motor drive device main body 11.

[0085] In the above-described embodiments, the fan motor unit 13 is disposed above the radiator 12, but the fan motor unit 13 can be disposed adjacent to the radiator 12. The fan motor unit 13 is disposed adjacent to the radiator 12 means that the fan motor unit 13 is disposed in a manner that air can be blown with respect to the radiator 12. Specifically, the fan motor unit 13 can be disposed in any one of above, below, side, and rear of the radiator 12.

[0086] In addition, the fan motor unit 13 is not limited to being configured to be pulled out in a manner that passes above the motor drive device main body 11, but can be configured to be pulled out in a manner that passes near the motor drive device main body 11. The fan motor unit 13 is pulled out in a manner that passes near the motor drive device main body 11 means that the fan motor unit 13 is pulled out in a manner that the pulling-out path of the fan motor unit 13 passes along at least one outer surface of the motor drive device main body 11.

[0087] The motor drive device main body 11 near which the fan motor unit 13 is pulled out is not limited to the motor drive device main body 11 to which the fan motor unit 13 is mounted, but can be another motor drive device main body 11 disposed adjacent to the fan motor unit 13. For example, in the case where the fan motor unit 13 is disposed below the radiator 12, when the fan motor unit 13 is pulled out, the contaminant X falling from the fan motor unit 13 falls to another motor drive device main body 11 disposed further below the fan motor unit 13. Thus, by providing the above-described gusset member 2, 2A, 2B to the other motor drive device main body 11 to which the contaminant X falls, the contaminant X can be prevented from entering the other motor drive device main body 11.

Claims

1. A motor drive device installed on a control board, characterized by comprising: a motor drive device main body; a heat sink disposed on a back surface side of the motor drive device main body; a fan motor unit disposed adjacent to the heat sink so as to be capable of being drawn out through the vicinity of the motor drive device main body; and a spacer member which, when the fan motor unit is drawn out, is deployed between the fan motor unit and the motor drive device main body along a drawing-out path of the fan motor unit, one end portion of the spacer member is attached to the vicinity of a start end of the drawing-out path, and the other end portion of the spacer member is attached to an end portion on a front side in a drawing-out direction of the fan motor unit in a detachable manner, the spacer member being configured to be deployed along the drawing-out path in conjunction with a drawing-out operation of the fan motor unit.

2. The motor drive device according to claim 1, characterized in that: one end portion of the spacer member is attached to the vicinity of the start end of the drawing-out path, and the other end portion side of the spacer member is configured to be deployed along the drawing-out path.

3. The motor drive device according to claim 1, characterized in that: the other end portion of the spacer member has a holding member for holding a deployed state.

4. The motor drive device according to claim 2, characterized in that: the other end portion of the spacer member has a holding member for holding a deployed state.

5. The motor drive device according to any one of claims 1 to 4, characterized in that: the motor drive device main body has a pair of wall plate members disposed in such a manner as to sandwich the drawing-out path of the fan motor unit from both sides, inner surfaces of the pair of wall plate members each have a pair of rail members constituting the drawing-out path, and the spacer member is deployed along the pair of rail members.

6. The motor drive device according to any one of claims 1 to 4, characterized in that: the spacer member before deployment is in any one of a roll shape, a folded shape, and a corrugated shape.

7. The motor drive device according to claim 5, characterized in that: the spacer member before deployment is in any one of a roll shape, a folded shape, and a corrugated shape.

8. The motor drive device according to any one of claims 1 to 4, characterized in that: the spacer member has different shapes in a state before deployment and in a deployed state.

9. The motor drive device according to claim 5, characterized in that: the spacer member has different shapes in a state before deployment and in a deployed state.

10. The motor drive device according to claim 6, characterized in that: the spacer member has different shapes in a state before deployment and in a deployed state.

11. The motor drive device according to claim 7, characterized in that: the spacer member has different shapes in a state before deployment and in a deployed state.

12. A motor drive device installed on a control board, characterized by comprising: a motor drive device main body; ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ a heat sink disposed on a back surface side of the motor drive device main body; a fan motor unit disposed adjacent to the heat sink so as to be extractable through a vicinity of the motor drive device main body; and a spacer member that is deployed between the fan motor unit and the motor drive device main body along an extraction path of the fan motor unit when the fan motor unit is extracted, the motor drive device main body has a pair of wall members disposed so as to sandwich the extraction path of the fan motor unit from both sides, inner surfaces of the pair of wall members each have a pair of rail members that constitute the extraction path, the spacer member is deployed along the pair of rail members.

13. The motor drive device according to claim 12, wherein one end portion of the spacer member is attached to a vicinity of a start end of the extraction path, the other end portion side of the spacer member is configured to be deployed along the extraction path.

14. The motor drive apparatus according to claim 12, characterized by the other end portion of the spacer member has a holding member for holding a deployed state.

15. The motor drive device according to claim 13, wherein the other end portion of the spacer member has a holding member for holding a deployed state.

16. The motor drive apparatus according to any one of claims 12 to 15, characterized by the spacer member before deployment is in any one of a roll shape, a folded shape, and a corrugated shape.

17. The motor drive apparatus according to any one of claims 12 to 15, characterized by the spacer member has different shapes in a state before deployment and in a deployed state.

18. The motor drive device according to claim 16, wherein the spacer member has different shapes in a state before deployment and in a deployed state.

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