Mounting plate material and mounting structure of motor drive device

Abstract

A mounting plate material according to the present disclosure is for mounting a motor drive device to a support section of a control panel, the mounting plate material comprising: a placement section where a plate-securing section that secures the mounting plate material to the support section is placed; and a secured section where a device-securing section that secures the motor drive device to the mounting plate material is secured. The mounting plate material is provided to block at least part of an opening in the support section.

Description

Mounting plate material and mounting structure for motor drive device

[0001] The present disclosure relates to a mounting plate and mounting structure for a motor drive device.

[0002] Generally, a motor drive device is mounted inside a control panel. The motor drive device is detachably fixed to a support part of the control panel. When the motor drive device is fixed to the support part, the heat dissipation part of the motor drive device passes through an opening formed in the support part.

[0003] Conventionally, the support portion of a control panel divides the interior of the control panel into two spaces. The heat dissipation portion of the motor drive unit passes through an opening in the support portion and is therefore located in one of the two spaces. When the motor drive unit is fixed to the support portion, the opening in the support portion is closed by the motor drive unit. With this configuration, the other of the two spaces is not in communication with the first space. The first space is able to communicate with the outside air.

[0004] Japanese Patent Application Laid-Open No. 2017-195246

[0005] If the motor drive device is miniaturized, when the motor drive device is attached to the support portion of the control panel, the opening of the support portion is not closed by the motor drive device. In other words, one space and the other space are allowed to communicate with each other. When one space and the other space are allowed to communicate with each other, dirty air in one space that is allowed to communicate with the outside air will flow into the other space. If dirty air flows into the other space, there is a risk of the control panel breaking down. For this reason, the motor drive device cannot be easily miniaturized.

[0006] When replacing a motor drive device, the motor drive device may be replaced from an old model to a new model. The new model of motor drive device may be smaller than the old model of motor drive device. When attempting to attach the new, more compact model of motor drive device to a support part of a control panel, the problem of control panel failure occurs, as described above. Therefore, when replacing an old model of motor drive device with a new, more compact model of motor drive device, it is necessary to remove the original control panel from the device and then attach a control panel having a support part that is compatible with the new model to the device.

[0007] Therefore, in order to solve the above-mentioned problems, there is a need for a mounting plate that can easily mount a miniaturized motor drive device to the support part of the control panel while leaving the configuration of the support part of the control panel unchanged, and a mounting structure that includes this mounting plate.

[0008] The mounting plate of the present disclosure is a mounting plate for attaching a motor drive device to a support portion of a control panel, and includes a positioning portion in which a plate fixing portion for fixing the mounting plate to the support portion is disposed, and a fixed portion in which a device fixing portion for fixing the motor drive device to the mounting plate is fixed, and is arranged to block at least a portion of the opening of the support portion.

[0009] FIG. 1 is a schematic right side view, partially in cross section, showing a state in which a mounting plate of a motor drive device according to a first embodiment of the present invention is in use; FIG. 2 is a schematic perspective view, partially omitted, showing a state in which a mounting plate of a motor drive device according to a first embodiment of the present invention is in use; FIG. 3 is a schematic exploded perspective view, partially omitted, showing a state in which a mounting plate of a motor drive device according to a first embodiment of the present invention is in use; FIG. 4 is a perspective view showing a mounting plate of a motor drive device according to a second embodiment of the present invention is in use; FIG. 5 is a schematic exploded perspective view, partially omitted, showing a state in which a mounting plate of a motor drive device according to a second embodiment of the present invention is in use; FIG. 6 is a perspective view showing a mounting plate of a motor drive device according to a third embodiment of the present invention is in use; FIG. 7 is a schematic exploded perspective view, partially omitted, showing a state in which a mounting plate of a motor drive device according to a third embodiment of the present invention is in use; FIG. 8 is a schematic exploded perspective view, partially omitted, showing a state in which a mounting plate of a motor drive device according to a third embodiment of the present invention is in use; FIG. 9 is a perspective view showing a mounting plate of a motor drive device according to a third embodiment of the present invention is in use; 1 is a schematic exploded perspective view showing a state in use of a mounting plate for a motor drive device according to a fourth embodiment of the present invention, with some parts omitted; FIG. 2 is a perspective view showing a state in use of a mounting plate for a motor drive device according to a fifth embodiment of the present invention, with some parts omitted; FIG. 3 is a schematic exploded perspective view showing a state in use of a mounting plate for a motor drive device according to a fifth embodiment of the present invention, with some parts omitted; FIG. 4 is a perspective view showing a mounting plate for a motor drive device according to a fifth embodiment of the present invention, with some parts omitted; FIG. 5 is a schematic perspective view showing a state in use of a mounting plate for a motor drive device according to a sixth embodiment of the present invention, with some parts omitted; FIG. 6 is a schematic exploded perspective view showing a state in use of a mounting plate for a motor drive device according to a sixth embodiment of the present invention, with some parts omitted;1 is a schematic front view showing a mounting structure for a motor drive device according to an embodiment of the present invention;

[0010] A mounting plate for a motor drive device according to one aspect of the present disclosure will now be described with reference to the drawings. A mounting plate 1 for a motor drive device according to a first embodiment will be described with reference to FIGS. 1 to 4. The mounting plate 1 mounts a motor drive device 4 to a support portion 3 of a control panel 2. The control panel 2 has a hollow housing 5. The housing 5 has a main body 6 that houses the motor drive device 4 and a door 7 that opens and closes an opening in the main body 6. The main body 6 is shaped like a substantially rectangular box and has a hollow portion. The main body 6 has an opening that opens to the front (left direction in FIG. 1 ). The opening in the main body 6 can be opened and closed by the door 7. The door 7 is attached to the front of the main body 6 by a hinge (not shown).

[0011] A support unit 3 that supports the motor drive device 4 is provided inside the main body 6. The support unit 3 has a substantially rectangular plate shape when viewed from the front. The support unit 3 is provided inside the main body 6 with its plate surface facing the front-rear direction (the left-right direction in FIG. 1 ). As shown in FIG. 3 , the support unit 3 has a plurality of openings 8 that penetrate the support unit 3 in its thickness direction (the left-right direction in FIG. 1 ). The plurality of openings 8 are arranged side by side in the left-right direction (the direction connecting the upper left and lower right in FIG. 3 ). The openings 8 of the support unit 3 have a substantially rectangular shape when viewed from the front. In the illustrated example, the number of openings 8 of the support unit 3 is three, but this is not limited thereto and may be two, four or more. The number of openings 8 of the support unit 3 is not limited to multiple and may be one.

[0012] The support portion 3 divides the interior of the housing 5 in the front-rear direction. Specifically, the support portion 3 divides the interior of the housing 5 into a first space 9 located on the front side and a second space 10 located on the rear side. The first space 9 is formed by closing an opening of the main body 6 with the door 7. The second space 10 is capable of communicating with the outside air. In the illustrated example, the housing 5 has a plurality of upper through-holes 12 located on the upper part of the rear wall 11 and a plurality of lower through-holes 13 located on the lower part of the rear wall 11. The plurality of upper through-holes 12 are arranged side by side in the left-right direction at the upper part of the rear wall 11. The plurality of lower through-holes 13 are arranged side by side in the left-right direction at the lower part of the rear wall 11. As a result, the second space 10 is connected to the outside via the plurality of upper through-holes 12 and the plurality of lower through-holes 13.

[0013] 1, a plurality of motor driving devices 4 are mounted inside the control panel 2. Each motor driving device 4 has a control unit 14, a flange 15, and a heat dissipation unit 16.

[0014] The control unit 14 is located on the front side. The flange 15 is plate-shaped and has a substantially rectangular outer shape. The vertical length of the flange 15 is longer than the vertical length of the control unit 14. The flange 15 is provided on the rear surface of the control unit 14 with its plate surface facing the front-to-rear direction. When the flange 15 is provided on the control unit 14, the upper end 17 of the flange 15 extends upward beyond the control unit 14, and the lower end 18 of the flange 15 extends downward beyond the control unit 14. The flange 15 has a plurality of through holes 19 penetrating in the thickness direction of the flange 15. Specifically, the upper end 17 and the lower end 18 of the flange 15 have a plurality of through holes 19 penetrating in the thickness direction of the flange 15. In the illustrated example, two through holes 19, 19 are arranged in the upper end 17 of the flange 15, and two through holes 19, 19 are arranged in the lower end 18 of the flange 15. The two through holes 19, 19 arranged at the upper end 17 of the flange 15 are spaced apart in the left-right direction, and the two through holes 19, 19 arranged at the lower end 18 of the flange 15 are spaced apart in the left-right direction. The heat dissipation section 16 is located on the rear side. The heat dissipation section 16 is provided on the rear surface of the control section 14. The heat dissipation section 16 has a function of dissipating heat generated by the control section 14. Typically, the heat dissipation section 16 has a fan and a heat sink. Note that the number of motor drive units 4 mounted inside the control panel 2 may be one.

[0015] Each of the multiple motor drive units 4 is attached to the support portion 3 of the control panel 2 via one mounting plate 1. That is, in the first embodiment, multiple mounting plates 1 are used. When one motor drive unit 4 is mounted inside the control panel 2, one mounting plate 1 is used. In the illustrated example, three motor drive units 4 are used, but the number may be two, four or more.

[0016] The mounting plate 1 of the first embodiment is made of a metal such as iron and has a plate shape with a substantially rectangular outline when viewed from the front. The size of the mounting plate 1 is larger than the size of the opening 8 of the support portion 3. Specifically, the vertical length of the mounting plate 1 is larger than the vertical length of the opening 8 of the support portion 3, and the left-right length of the mounting plate 1 is larger than the left-right length of the opening 8 of the support portion 3. The mounting plate 1 includes a placement portion 21 in which a plate fixing portion 20 that fixes the mounting plate 1 to the support portion 3 is disposed, a fixed portion 23 to which a device fixing portion 22 that fixes the motor drive device 4 to the mounting plate 1 is fixed, and a device opening 24 through which a portion of the motor drive device 4 passes.

[0017] In the first embodiment, the plate fixing portion 20 is a screw (male screw). Therefore, the support portion 3 has a screw hole 25 into which the plate fixing portion 20 is screwed. Because the plate fixing portion 20 is a screw, the arrangement portion 21 is a through-hole through which the plate fixing portion 20 passes. With this configuration, the mounting plate 1 can be detachably fixed to the front surface of the support portion 3 by the plate fixing portion 20. Specifically, the mounting plate 1 is attached to the support portion 3 by screwing the plate fixing portion 20 into the screw hole 25 via the arrangement portion 21 of the mounting plate 1.

[0018] When fixing the mounting plate 1 to the support part 3, four plate fixing parts 20 are used. Therefore, the number of arrangement parts 21 and the number of screw holes 25 are four. The four arrangement parts 21 are located at the four corners of the mounting plate 1. Of the four screw holes 25, two screw holes 25, 25 are located above the opening 8. These two screw holes 25, 25 are spaced apart to the left and right. Of the four screw holes 25, the remaining two screw holes 25, 25 are located below the opening 8. These two screw holes 25, 25 are spaced apart to the left and right. Note that the number of plate fixing parts 20, the number of arrangement parts 21, and the number of screw holes 25 are not limited to four, and may be any plural number.

[0019] In the first embodiment, the device fixing portion 22 is a screw (male screw). Therefore, the fixed portion 23 is a screw hole into which the device fixing portion 22 is screwed. The fixed portion 23 penetrates the mounting plate 1 in the thickness direction. Because the device fixing portion 22 is a screw, the motor drive device 4 has the above-mentioned through hole 19. With this configuration, the motor drive device 4 can be detachably fixed to the front surface of the mounting plate 1 by the device fixing portion 22. Specifically, the device fixing portion 22 is screwed into the fixed portion 23 through the through hole 19 of the motor drive device 4, thereby mounting the motor drive device 4 to the mounting plate 1. When the motor drive device 4 is mounted on the mounting plate 1, the heat dissipation portion 16 of the motor drive device 4 passes through the device opening 24 of the mounting plate 1.

[0020] The device opening 24 has a substantially rectangular shape when viewed from the front. The size of the device opening 24 is smaller than the size of the opening 8 of the support part 3. Specifically, the vertical length of the device opening 24 is smaller than the vertical length of the opening 8 of the support part 3, and the left-right length of the device opening 24 is smaller than the left-right length of the opening 8 of the support part 3. The size of the device opening 24 is smaller than the size of the flange 15 of the motor drive unit 4. Specifically, the vertical length of the device opening 24 is smaller than the vertical length of the flange 15, and the left-right length of the device opening 24 is smaller than the left-right length of the flange 15.

[0021] When fixing the motor drive device 4 to the mounting plate 1, four device fixing portions 22 are used. Therefore, the number of fixed portions 23 and the number of through holes 19 are four. Of the four fixed portions 23, two fixed portions 23, 23 are located above the device opening 24. These two fixed portions 23, 23 are spaced apart to the left and right. Of the four fixed portions 23, 23, the remaining two fixed portions 23, 23 are located below the device opening 24. These two fixed portions 23, 23 are spaced apart to the left and right. The four through holes 19 are arranged in the flange 15 as described above. Note that the number of device fixing portions 22, the number of fixed portions 23, and the number of through holes 19 are not limited to four, and may be any plural number.

[0022] The mounting plate 1 is fixed to the support portion 3 by the plate fixing portion 20, and the motor drive device 4 is fixed to the mounting plate 1 by the device fixing portion 22, so that the motor drive device 4 is detachably attached to the support portion 3. When the mounting plate 1 is fixed to the support portion 3, the device opening 24 of the mounting plate 1 and the opening 8 of the support portion 3 correspond to each other. That is, the device opening 24 of the mounting plate 1 is located in front of the opening 8 of the support portion 3. As described above, the size of the device opening 24 is smaller than the size of the opening 8. Therefore, the mounting plate 1 is provided on the support portion 3 so as to block a portion of the opening 8 of the support portion 3. When the motor drive device 4 is fixed to the mounting plate 1, the device opening 24 is blocked by the flange 15 because the size of the device opening 24 is smaller than the size of the flange 15. When the motor drive device 4 is attached to the support part 3, the heat dissipation part 16 of the motor drive device 4 passes through the device opening 24 of the mounting plate 1 and the opening 8 of the support part 3. Therefore, the heat dissipation part 16 of the motor drive device 4 is disposed in the second space 10.

[0023] In the case of the mounting plate 1 of the first embodiment, the mounting plate 1 is fixed to the support portion 3 by screwing the plate fixing portion 20 into the screw hole 25 of the support portion 3 via the arrangement portion 21. The screw hole 25 of the support portion 3 was used when attaching a motor drive device 4 to the support portion 3 that is larger in size than the motor drive device 4 fixed to the support portion 3 via the mounting plate 1. The larger-sized motor drive device 4 is fixed directly to the support portion 3 by screwing the plate fixing portion 20 into the screw hole 25 of the support portion 3 via the through hole 19 of the flange 15. According to the mounting plate 1 of the first embodiment, the screw hole 25 that was used when directly attaching the motor drive device 4 to the support portion 3 is used when fixing the mounting plate 1 to the support portion 3.

[0024] In the case of the mounting plate 1 of the first embodiment, the size of the device opening 24 is smaller than the size of the opening 8 of the support portion 3 and the size of the flange 15. Therefore, when the motor drive device 4 is fixed to the support portion 3, the first space 9 and the second space 10 are not in communication. Because the first space 9 and the second space 10 are not in communication, dirty air in the second space 10, which is in communication with the outside, does not flow into the first space 9. This makes it possible to keep the first space 9, in which the control portion 14 is disposed, clean.

[0025] In the case of the mounting plate 1 of the first embodiment, the mounting plate 1 may be made of copper or aluminum. In this case, the heat generated in the control unit 14 is likely to escape to the second space 10.

[0026] Next, a mounting plate according to a second embodiment of the present invention will be described with reference to Figures 5 to 7. Components having the same reference numerals as those in the first embodiment function in the same way, and therefore their description may be omitted. The mounting plate 1a of the second embodiment differs from the first embodiment in the configuration of the fixed portion 23.

[0027] The motor drive device 4 is fixed to the mounting plate 1a of the second embodiment in the same manner as in the first embodiment. Specifically, the device fixing portion 22 is screwed into the fixed portion 23 through the through hole 19 of the motor drive device 4, thereby mounting the motor drive device 4 to the mounting plate 1a. Therefore, the motor drive device 4 is mounted on the front surface of the mounting plate 1a. In other words, the mounting plate 1a has a mounting surface 26 to which the motor drive device 4 is mounted.

[0028] The fixed portion 23 of the mounting plate 1a is a concave shape (bottomed female screw) that opens to the mounting surface 26. The fixed portion 23 does not penetrate the mounting plate 1a. Therefore, the mounting plate 1a has a thickness that does not allow the fixed portion 23 to penetrate through it. Typically, the thickness of the mounting plate 1a is greater than the thickness of the mounting plate 1 of the first embodiment.

[0029] Of the four fixed portions 23, the two fixed portions 23, 23 located above the device opening 24 are arranged side by side with the two arrangement portions 21, 21 located at the top of the mounting plate 1a. The two fixed portions 23, 23 located above the device opening 24 are arranged inside the two arrangement portions 21, 21 located at the top of the mounting plate 1a. Of the four fixed portions 23, 23, the two fixed portions 23, 23 located below the device opening 24 are arranged side by side with the two arrangement portions 21, 21 located at the bottom of the mounting plate 1a. The two fixed portions 23, 23 located below the device opening 24 are arranged inside the two arrangement portions 21, 21 located at the bottom of the mounting plate 1a.

[0030] The size of the device opening 24 in the mounting plate 1a is smaller than the size of the opening 8 in the support portion 3. Specifically, the vertical length of the device opening 24 is approximately the same as the vertical length of the opening 8 in the support portion 3, and the left-right length of the device opening 24 is smaller than the left-right length of the opening 8 in the support portion 3. The size of the device opening 24 is smaller than the size of the flange 15 of the motor drive unit 4. Specifically, the vertical length of the device opening 24 is smaller than the vertical length of the flange 15, and the left-right length of the device opening 24 is smaller than the left-right length of the flange 15.

[0031] The mounting plate 1a configured as described above is fixed to the support portion 3 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the plate fixing portion 20 is screwed into the screw hole 25 via the positioning portion 21 of the mounting plate 1a, thereby attaching the mounting plate 1a to the support portion 3. When the mounting plate 1a is fixed to the support portion 3, the device opening 24 of the mounting plate 1a and the opening 8 of the support portion 3 correspond to each other. That is, the device opening 24 of the mounting plate 1a is located in front of the opening 8 of the support portion 3. As described above, the vertical length of the device opening 24 is approximately the same as the vertical length of the opening 8 of the support portion 3, and the lateral length of the device opening 24 is smaller than the lateral length of the opening 8 of the support portion 3. Therefore, the mounting plate 1a is provided on the support portion 3 so as to cover both the left and right ends of the opening 8 of the support portion 3. In this manner, the mounting plate 1a is provided on the support portion 3 so as to cover a portion of the opening 8 of the support portion 3.

[0032] In the case of the mounting plate 1a of the second embodiment, of the four fixed portions 23, the two fixed portions 23, 23 located above the device opening 24 are aligned horizontally with the two arrangement portions 21, 21 located at the top of the mounting plate 1a. Of the four fixed portions 23, the two fixed portions 23, 23 located below the device opening 24 are aligned horizontally with the two arrangement portions 21, 21 located at the bottom of the mounting plate 1a. Therefore, when the mounting plate 1a is fixed to the support portion 3, the fixed portions 23 are positioned in front of the front surface of the support portion 3. In this case, if the fixed portions penetrate the mounting plate, the device fixing portions 22 screwed into the fixed portions may come into contact with the front surface of the support portion 3. If the device fixing portions 22 come into contact with the front surface of the support portion 3, the device fixing portions 22 may not be screwed in enough to secure the motor drive device 4 to the mounting plate.

[0033] In contrast, in the mounting plate 1a of the second embodiment, the fixed portion 23 does not penetrate the mounting plate 1a. Therefore, with the mounting plate 1a of the second embodiment, the above-mentioned problem does not occur, and the device fixing portion 22 can be screwed in until the motor drive device 4 is fixed to the mounting plate 1a.

[0034] Next, a mounting plate according to a third embodiment of the present invention will be described with reference to Figures 8 to 10. Components having the same reference numerals as those in the first embodiment function in the same manner, and therefore their description may be omitted. The mounting plate 1b of the third embodiment differs from the first embodiment in the configuration of the fixed portion 23.

[0035] The fixed portion 23 of the mounting plate 1b in the third embodiment is a threaded rod having a thread 27 formed on its outer circumferential surface. The fixed portion 23 protrudes forward from the mounting plate 1b. Because the fixed portion 23 is a threaded rod, the device fixing portion 22 is a nut that is screwed onto the fixed portion 23.

[0036] Of the four fixed portions 23, the two fixed portions 23, 23 located above the device opening 24 are arranged side by side in the horizontal direction (left and right direction) with the two arrangement portions 21, 21 located at the top of the mounting plate 1b. The two fixed portions 23, 23 located above the device opening 24 are arranged inside the two arrangement portions 21, 21 located at the top of the mounting plate 1b. Of the four fixed portions 23, 23 located below the device opening 24 are arranged side by side in the horizontal direction with the two arrangement portions 21, 21 located at the bottom of the mounting plate 1b. The two fixed portions 23, 23 located below the device opening 24 are arranged inside the two arrangement portions 21, 21 located at the bottom of the mounting plate 1b.

[0037] The size of the device opening 24 in the mounting plate 1b is smaller than the size of the opening 8 in the support portion 3. Specifically, the vertical length of the device opening 24 is approximately the same as the vertical length of the opening 8 in the support portion 3, and the left-right length of the device opening 24 is smaller than the left-right length of the opening 8 in the support portion 3. The size of the device opening 24 is smaller than the size of the flange 15 of the motor drive unit 4. Specifically, the vertical length of the device opening 24 is smaller than the vertical length of the flange 15, and the left-right length of the device opening 24 is smaller than the left-right length of the flange 15.

[0038] To fix the motor drive unit 4 to the mounting plate 1b, the device fixing portion 22 is simply screwed into the fixed portion 23 with the fixed portion 23 passing through the through hole 19 of the flange 15. In this way, the motor drive unit 4 is detachably fixed to the mounting plate 1b.

[0039] In the third embodiment, the plate fixing portion 20 is a screw, and the arrangement portion 21 is a through-hole through which the plate fixing portion 20 passes. With this configuration, the mounting plate 1b is fixed to the support portion 3 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the plate fixing portion 20 is screwed into the screw hole 25 via the arrangement portion 21 of the mounting plate 1b, thereby attaching the mounting plate 1b to the support portion 3. When the mounting plate 1b is fixed to the support portion 3, the device opening 24 of the mounting plate 1b and the opening 8 of the support portion 3 correspond to each other. That is, the device opening 24 of the mounting plate 1b is located in front of the opening 8 of the support portion 3. As described above, the vertical length of the device opening 24 is approximately the same as the vertical length of the opening 8 of the support portion 3, and the lateral length of the device opening 24 is smaller than the lateral length of the opening 8 of the support portion 3. Therefore, the mounting plate 1b is provided on the support part 3 so as to cover both the left and right ends of the opening 8 of the support part 3. In this way, the mounting plate 1b is provided on the support part 3 so as to cover a part of the opening 8 of the support part 3.

[0040] In the case of the mounting plate 1b of the third embodiment, the fixed portion 23 is a threaded rod having a thread formed on the outer circumferential surface. Therefore, according to the mounting plate 1b of the third embodiment, the fixed portion 23 is passed through the flange 15, so that when the motor drive unit 4 is fixed to the mounting plate 1b, the motor drive unit 4 can be positioned relative to the mounting plate 1b.

[0041] Next, a mounting plate according to a fourth embodiment of the present invention will be described using Figures 11 to 13. Components having the same reference numerals as those in the first embodiment function in the same way, and therefore their description may be omitted below. The mounting plate 1c of the fourth embodiment differs from the first embodiment in that it does not include a device opening 24. Specifically, the mounting plate 1c includes a placement portion 21 in which a plate fixing portion 20 that fixes the mounting plate 1c to the support portion 3 is disposed, and a fixed portion 23 to which a device fixing portion 22 that fixes the motor drive device 4 to the mounting plate 1c is fixed. On the other hand, the mounting plate 1c does not include a device opening 24 through which a portion of the motor drive device 4 passes.

[0042] The plate fixing portion 20 is a screw (male screw), and the arranging portion 21 is a through-hole through which the plate fixing portion 20 passes. With this configuration, the mounting plate 1c is fixed to the support portion 3 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the plate fixing portion 20 is screwed into the screw hole 25 via the arranging portion 21 of the mounting plate 1c, thereby attaching the mounting plate 1c to the support portion 3. When the mounting plate 1c is fixed to the support portion 3, the mounting plate 1c does not have an apparatus opening 24, and therefore entirely blocks the opening 8 of the support portion 3.

[0043] The motor drive device 4 fixed to the mounting plate 1c has a different configuration from the motor drive device 4 used in the first embodiment. Specifically, the motor drive device 4 does not have a heat dissipation unit 16. The motor drive device 4 is detachably fixed to the front surface of the mounting plate 1c by a device fixing unit 22. The device fixing unit 22 is a screw, and the fixed unit 23 is a screw hole into which the device fixing unit 22 is screwed. With this configuration, the motor drive device 4 is attached to the mounting plate 1c by screwing the device fixing unit 22 into the fixed unit 23 through the through hole 19 of the flange 15.

[0044] In the case of the mounting plate 1c of the fourth embodiment, the mounting plate 1c does not have the device opening 24. Therefore, according to the mounting plate 1c of the fourth embodiment, it is possible to easily manufacture the mounting plate 1c to which the motor drive device 4, which does not have a heat dissipation portion 16, is fixed.

[0045] Next, a mounting plate according to a fifth embodiment of the present invention will be described with reference to Figures 14 to 16. Components having the same reference numerals as those in the first embodiment function in the same way, and therefore their description may be omitted. The mounting plate 1d of the fifth embodiment differs from the first embodiment in that it has a structure for reinforcing the mounting plate 1d.

[0046] The mounting plate 1d of the fifth embodiment includes ribs 29 that reinforce the mounting plate 1d. In the illustrated example, the ribs 29 have a generally rectangular frame shape when viewed from the front. Specifically, the ribs 29 include an upper frame portion 30 that protrudes forward from the upper end of the mounting plate 1d, a lower frame portion 31 that protrudes forward from the lower end of the mounting plate 1d, a left frame portion 32 that protrudes forward from the left end of the mounting plate 1d, and a right frame portion 33 that protrudes forward from the right end of the mounting plate 1d. In other words, the mounting plate 1d has a box shape that opens forward. The ribs 29 are formed by bending, welding, drawing, or the like.

[0047] The mounting plate 1d is fixed to the support portion 3 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the plate fixing portion 20 is screwed into the screw hole 25 via the arrangement portion 21 of the mounting plate 1d, thereby attaching the mounting plate 1d to the support portion 3. The motor drive device 4 is fixed to the mounting plate 1d in the same manner as the mounting plate 1 of the first embodiment. Specifically, the device fixing portion 22 is screwed into the fixed portion 23 via the through hole 19 of the motor drive device 4, thereby attaching the motor drive device 4 to the mounting plate 1d.

[0048] In the case of the mounting plate 1d of the fifth embodiment, the mounting plate 1d is provided with a frame-shaped rib 29. Therefore, according to the mounting plate 1d of the fifth embodiment, the strength of the mounting plate 1d can be reinforced.

[0049] Next, a mounting plate according to a sixth embodiment of the present invention will be described with reference to Figures 17 to 19. Components having the same reference numerals as those in the first embodiment function in the same way, and therefore their description may be omitted below. The mounting plate 1e of the sixth embodiment differs from the first embodiment in that multiple motor drive units 4 are fixed to it.

[0050] The mounting plate 1e of the sixth embodiment includes a plurality of device openings 24 arranged side by side in the horizontal direction (left and right direction). In the illustrated example, the number of device openings 24 in the mounting plate 1e is three, but this is not limited thereto and may be two, four or more.

[0051] The mounting plate 1e has a plurality of positioning portions 21. The plurality of positioning portions 21 are arranged at positions corresponding to the screw holes 25 of the support portion 3. The positioning portions 21 may be arranged only at the four corners of the mounting plate 1e. The mounting plate 1e is attached to the support portion 3 by screwing the plate fixing portions 20 into the screw holes 25 via the positioning portions 21 of the mounting plate 1e. Therefore, the mounting plate 1e is detachably fixed to the front surface of the support portion 3 by the plate fixing portions 20.

[0052] A plurality of motor drive units 4 are fixed to the mounting plate 1e so as to close each of the plurality of device openings 24. Each motor drive unit 4 is attached to the mounting plate 1e by screwing the device fixing portion 22 into the fixed portion 23 through the through hole 19 of the motor drive unit 4. Therefore, the motor drive unit 4 is detachably fixed to the front surface of the mounting plate 1e by the device fixing portion 22.

[0053] In the case of the mounting plate 1e of the sixth embodiment, each mounting plate 1e has a plurality of device openings 24. Therefore, according to the mounting plate 1e of the sixth embodiment, a plurality of motor drive devices 4 can be easily fixed to the mounting plate 1e.

[0054] When multiple motor drive devices 4 are arranged side by side, adjacent motor drive devices 4, 4 are connected by cables, etc. Therefore, the mounting plate 1e of the sixth embodiment is suitable for use when mounting multiple motor drive devices 4 on the support portion 3.

[0055] Next, a mounting structure for a motor drive device according to one embodiment of the present invention will be described with reference to Figures 20 and 21. Note that components having the same reference numerals as those in the first embodiment have the same functions, and therefore their description may be omitted below.

[0056] The mounting structure for the motor drive device 4 includes a mounting plate 1 and a sealant 34 that seals the gap between the mounting plate 1 and the support portion 3, and the gap between the motor drive device 4 and the mounting plate 1. The mounting plate 1 used in the mounting structure for the motor drive device 4 has the same configuration as the mounting plate 1 of the first embodiment. The configuration of the support portion 3 to which the mounting plate 1 is fixed and the configuration of the motor drive device 4 fixed to the mounting plate 1 are the same as those in the first embodiment. Therefore, the mounting plate 1 is fixed to the support portion 3 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the plate fixing portion 20 is screwed into the screw hole 25 via the arrangement portion 21 of the mounting plate 1, thereby attaching the mounting plate 1 to the support portion 3. The motor drive device 4 is fixed to the mounting plate 1 in the same manner as the mounting plate 1 of the first embodiment. Specifically, the device fixing portion 22 is screwed into the fixed portion 23 through the through hole 19 of the motor drive device 4 , thereby attaching the motor drive device 4 to the mounting plate 1 .

[0057] The configuration of the housing 5 that houses the motor drive device 4 is the same as in the first embodiment. Therefore, when the motor drive device 4 is fixed to the support part 3, the control part 14 of the motor drive device 4 is disposed in the first space 9, and the heat dissipation part 16 of the motor drive device 4 is disposed in the second space 10.

[0058] The sealing materials 34, 34 have a substantially rectangular frame shape when viewed from the front. The sealing material 34 seals the gap between the mounting plate 1 and the support portion 3 when the motor drive device 4 is fixed to the support portion 3. Specifically, the sealing material 34 surrounds the opening 8 of the support portion 3 between the mounting plate 1 and the support portion 3, thereby sealing the gap between the mounting plate 1 and the support portion 3. The sealing material 34 seals the gap between the motor drive device 4 and the mounting plate 1 when the motor drive device 4 is fixed to the support portion 3. Specifically, the sealing material 34 surrounds the device opening 24 of the mounting plate 1 between the flange 15 of the motor drive device 4 and the mounting plate 1, thereby sealing the gap between the flange 15 of the motor drive device 4 and the mounting plate 1.

[0059] In the illustrated example, the gap between the mounting plate 1 and the support portion 3 and the gap between the motor drive unit 4 and the mounting plate 1 are sealed with the sealant 34, but this is not limiting. Specifically, of the gap between the mounting plate 1 and the support portion 3 and the gap between the motor drive unit 4 and the mounting plate 1, one gap may be sealed with the sealant 34 and the other gap may not be sealed with the sealant 34. In other words, it is sufficient that the sealant 34 seals at least one of the gap between the mounting plate 1 and the support portion 3 and the gap between the motor drive unit 4 and the mounting plate 1.

[0060] In the mounting structure of this embodiment, the sealant 34 seals the gap between the mounting plate 1 and the support portion 3, and the gap between the motor drive device 4 and the mounting plate 1. Therefore, the mounting structure of this embodiment can more reliably prevent contaminated air in the second space 10 from flowing into the first space 9.

[0061] According to at least one of the embodiments described above, the motor drive unit 4 is fixed to the support portion 3 of the control panel 2 via the mounting plate 1 having the above-described configuration. Therefore, it is possible to provide a mounting plate 1 that allows the miniaturized motor drive unit 4 to be easily mounted to the support portion 3 of the control panel 2 while leaving the configuration of the support portion 3 of the control panel 2 unchanged, and a mounting structure that includes the mounting plate 1.

[0062] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments.

[0063] For example, the mounting plate 1a of the second embodiment, the mounting plate 1b of the third embodiment, the mounting plate 1c of the fourth embodiment, and the mounting plate 1e of the sixth embodiment may have ribs to reinforce the mounting plate. For example, the mounting plate 1a of the second embodiment, the mounting plate 1b of the third embodiment, the mounting plate 1c of the fourth embodiment, and the mounting plate 1d of the fifth embodiment may have multiple motor drive devices 4 fixed to each mounting plate. In this case, the mounting plate has multiple device openings. For example, a sealing material may be used in the mounting structure to which the mounting plate 1a of the second embodiment is applied, the mounting structure to which the mounting plate 1b of the third embodiment is applied, the mounting structure to which the mounting plate 1d of the fifth embodiment is applied, and the mounting structure to which the mounting plate 1e of the sixth embodiment is applied.

[0064] The following supplementary notes are further provided with respect to the above embodiment. (Supplementary Note 1) The mounting plate (1) for a motor drive device is a mounting plate for mounting a motor drive device (4) to a support portion (3) of a control panel (2), and includes a placement portion (21) in which a plate fixing portion (20) for fixing the mounting plate (1) to the support portion (3) is disposed, and a fixed portion (23) to which a device fixing portion (22) for fixing the motor drive device (4) to the mounting plate (1) is fixed. The mounting plate (1) is provided so as to cover at least a portion of the opening (8) of the support portion (3). (Supplementary Note 2) In the mounting plate (1) for a motor drive device according to Supplementary Note 1, it is preferable that the plate fixing portion (20) is a screw, and the placement portion (21) is a through-hole through which the plate fixing portion (20) passes. Preferably, the device fixing portion (22) is a screw, and the fixed portion (23) is a threaded hole into which the device fixing portion (22) is screwed. Preferably, the mounting plate (1) further includes a device opening (24) through which a portion of the motor drive device (4) passes. (Appendix 3) The mounting plate (1) for the motor drive device in Appendix 2 has a mounting surface (26) to which the motor drive device (4) is attached. Preferably, the fixed portion (23) has a concave shape opening into the mounting surface (26). (Appendix 4) The mounting plate (1) for the motor drive device in Appendix 1 is preferably, the plate fixing portion (20) is a screw, and the arrangement portion (21) is a through-hole through which the plate fixing portion (20) passes. Preferably, the device fixing portion (22) is a nut, and the fixed portion (23) is a threaded rod with threads (27) formed on its outer circumferential surface. It is preferable that the mounting plate (1) further comprises a device opening (24) through which a portion of the motor drive device (4) passes. (Supplementary Note 5) In the mounting plate (1) for a motor drive device according to Supplementary Note 1, it is preferable that the plate fixing portion (20) is a screw, and the arrangement portion (21) is a through-hole through which the plate fixing portion (20) passes. It is preferable that the device fixing portion (22) is a screw, and the fixed portion (23) is a screw hole into which the device fixing portion (22) is screwed. It is preferable that the mounting plate (1) does not comprise a device opening (24) through which a portion of the motor drive device (4) passes.(Supplementary Note 6) It is preferable that the mounting plate (1) of the motor drive device in any of Supplements 1 to 5 further comprises ribs (29) that reinforce the mounting plate (1). (Supplementary Note 7) It is preferable that the mounting plate (1) of the motor drive device in any of Supplements 1 to 6 has a plurality of the motor drive devices (4) fixed thereto. (Supplementary Note 8) It is preferable that the mounting structure of the motor drive device comprises the mounting plate (1) described in any of Supplements 2 to 4, and a sealant (34) that seals at least one of a gap between the mounting plate (1) and the support portion (3) or a gap between the motor drive device (4) and the mounting plate (1).

[0065] REFERENCE SIGNS LIST 1 Mounting plate 2 Control panel 3 Support portion 4 Motor drive device 8 Opening 20 Plate fixing portion 21 Arrangement portion 22 Device fixing portion 23 Fixed portion 24 Device opening 26 Mounting surface 29 Rib 34 Sealing material

Claims

1. A mounting plate for mounting a motor drive device to a support part of a control panel, a mounting portion in which a plate fixing portion for fixing the mounting plate to the support portion is disposed; a fixed portion to which a device fixing portion that fixes the motor drive device to the mounting plate is fixed, A mounting plate for the motor drive device is provided so as to cover at least a portion of the opening of the support portion.

2. the plate fixing portion is a screw, and the arrangement portion is a through hole through which the plate fixing portion passes; the device fixing portion is a screw, and the fixed portion is a screw hole into which the device fixing portion is screwed, The motor drive mounting plate of claim 1 , wherein the mounting plate further comprises an apparatus opening through which a portion of the motor drive passes.

3. a mounting surface on which the motor drive device is mounted; 3. The mounting plate for a motor drive device according to claim 2, wherein the fixed portion has a concave shape that opens into the mounting surface.

4. the plate fixing portion is a screw, and the arrangement portion is a through hole through which the plate fixing portion passes; The device fixing portion is a nut, and the fixed portion is a threaded rod having a thread formed on an outer circumferential surface thereof, The motor drive mounting plate of claim 1 , wherein the mounting plate further comprises an apparatus opening through which a portion of the motor drive passes.

5. the plate fixing portion is a screw, and the arrangement portion is a through hole through which the plate fixing portion passes; the device fixing portion is a screw, and the fixed portion is a screw hole into which the device fixing portion is screwed, The motor drive mounting plate of claim 1 , wherein the mounting plate does not include an apparatus opening through which a portion of the motor drive passes.

6. 6. The mounting plate for a motor drive device according to claim 1, further comprising a rib for reinforcing the mounting plate.

7. 6. A motor drive device mounting plate according to claim 1, wherein a plurality of said motor drive devices are fixed to said mounting plate.

8. A mounting plate material according to any one of claims 2 to 4, a sealant that seals at least one of a gap between the mounting plate and the support portion or a gap between the motor driving device and the mounting plate.