KR102057776B1 - Drive device - Google Patents

Abstract

The present invention provides a box, a drive unit provided with a drive unit and a blower unit disposed in the box, in which the pressure loss can be reduced as compared with the case where the blower unit is not spaced apart from the intake port.
The drive device 10 includes a box 20 in which the inlet port 26A and the exhaust port 24A are formed, a drive unit 40 disposed in the box 20 to output a signal for driving a driving target, and a box ( It is a position spaced apart from the inner surface of the box 20 in the inside 20, and is disposed at a position between the drive unit 40 and the inlet port 26A, and sends the air sucked from the inlet port 26A to the drive unit 40. Abundance 30 is provided.

Description

DRIVE DEVICE}

The present invention relates to a drive device.

Patent Literature 1 discloses an electronic device in which a plurality of electronic circuits are mounted. As shown in FIG. 1 of Patent Document 1, the electronic device includes a housing having an inlet port at a lower portion of the front surface, an exhaust port at an upper portion of the rear surface, a fan unit disposed in contact with the lower portion of the front surface, and the fan unit; An electronic circuit is arranged between the upper portions of the rear surface. The electronic device sucks outside air from the intake port by the operation of the fan unit, and discharges the air flow passing between the electronic circuits from the exhaust port to the outside.

Japanese Patent Laid-Open No. 2003-163480

By the way, in the case of the electronic device disclosed by patent document 1, the pressure loss as much as it originates because the fan unit is arrange | positioned in contact with a lower part of a front surface arises.

The present invention provides a box, a drive unit provided with a drive unit and a blower unit disposed in the box, in which pressure loss can be reduced as compared with a case in which the blower unit is not spaced apart from the intake port.

The first drive device of the present invention includes a box in which an inlet and an exhaust port are formed, a drive unit disposed in the box and outputting a signal for driving a driving target, and a position spaced apart from an inner surface of the box in the box. It is located in the position between the said drive part and the said intake port, and is provided with the air blower which sends the air sucked from the intake port to the said drive part.

The 1st drive apparatus of this invention can reduce pressure loss compared with the case where a blower is not arrange | positioned apart from an inlet port in the drive apparatus provided with the box, the drive part arrange | positioned in the said box, and a blower part.

The second drive device of the present invention includes a box in which an inlet and an exhaust port are formed, a drive unit disposed in the box and outputting a signal for driving a driving target, and a position spaced apart from an inner surface of the box in the box. It is disposed between the drive unit and the intake port, and is disposed between the blower for sending air sucked from the intake port to the drive unit, between the blower in the box and the intake port, together with the drive unit A circuit is constructed and a low heat generation portion having a lower heat generation amount than the drive portion at the time of operation is provided.

The second drive device of the present invention is a drive device including a box, a drive unit disposed in the box, a blower unit, and a low heat generation unit having a lower heat generation amount than the drive unit, so that the pressure loss can be reduced. The cooling efficiency of a drive part can be made high and the space can be utilized effectively.

In the third drive device of the present invention, the drive portion further includes a mounting substrate on which a drive element is mounted on one surface, and is fixed to the other surface of the mounting substrate, and generates heat from the mounting substrate during operation. The heat dissipation part which radiates heat | fever, and the surrounding wall which surrounds the said heat dissipation part with the said mounting board in the state which opened the said blower part side and the said exhaust port side are provided.

The third drive device of the present invention has higher cooling efficiency of the drive section than the case where the enclosure wall is not provided.

The fourth drive device of the present invention is further disposed between the opening on the exhaust port side formed of the mounting substrate and the enclosure wall and the exhaust port, and guides the air blown out from the opening on the exhaust port side to the exhaust port. It is equipped with the guide board to say.

The fourth drive device of the present invention has a higher exhaust efficiency than the case where the guide plate is not provided.

In the fifth drive device of the present invention, the box further includes a first sidewall on the opposite side of the drive unit with the air blowing portion interposed therebetween, and a second sidewall adjacent to the first sidewall, on which the intake port is formed. The second side wall is provided with another intake port that is opened between the intake port and the blower, as viewed from the second side wall side.

In the fifth drive device of the present invention, the amount of intake air is large as compared with the case where no other inlet port is opened between the inlet port and the blower part on the second side wall. As a result, the cooling efficiency of the drive unit is high.

The sixth drive device of the present invention further has a gap formed between the blower and the intake port, disposed in the gap, and including a guide plate for guiding air sucked from the other intake port into the blower. Doing.

The sixth drive device of the present invention has a larger amount of air guided into the portion surrounded by the enclosure wall and the mounting substrate, as compared with the case where the guide plate is not provided. As a result, the cooling efficiency of the drive unit is high.

In the seventh drive device of the present invention, the box is further provided with an input section of electric power supplied to the drive section and the blower section from an external power source, and the low heat generating section includes a relay circuit section for supplying power to the drive section. And a capacitor connected between the external power supply and the ground, and the capacitor is arranged on the input portion side rather than the relay circuit portion.

In the seventh drive device of the present invention, the distance between the capacitor and the drive unit can be shortened, compared to the case where the relay circuit unit is disposed on the drive unit side rather than the capacitor, so that the power supply stability from the external power source to the drive unit is high.

In the eighth drive device of the present invention, the drive portion further includes a mounting substrate on which one side of the drive element is mounted, and a portion of the box facing the one side is a part of a plate that can be separated from the box body. It is.

The eighth drive device of the present invention facilitates workability on the mounting substrate and the plurality of electronic components when performing the maintenance of the mounting substrate or the plurality of electronic components mounted on the mounting substrate.

The drive device of the present invention can reduce pressure loss in a drive device including a box, a drive unit disposed in the box, and a blower unit, as compared with a case in which the blower unit is not spaced apart from the intake port.

1 is a perspective view of a driving device of the present embodiment.
FIG. 2 is a perspective view of the drive device of the present embodiment as seen from a direction different from that in FIG. 1.
Fig. 3 is a side view of the drive device of the present embodiment, and is a side view showing a state where the front panel of the housing constituting the drive device is separated from the housing main body.
4 is a cross-sectional view taken along the line 4-4 in FIG.
5 is a cross-sectional view taken along the line 5-5 in FIG.
It is a side view of the drive apparatus of a 1st comparative aspect, and is a side view which shows the state which removed the panel of the side surface of the housing which comprises a drive apparatus from the housing main body.
It is a side view of the drive apparatus of a 2nd comparative form, and is a side view which shows the state which removed the panel of the side surface of the housing which comprises a drive apparatus from the housing main body.
It is a side view of the drive apparatus of a 7th comparative aspect, and is a side view which shows the state which removed the panel of the side surface of the housing which comprises a drive apparatus from the housing main body.

≪Overview≫

The drive apparatus 10 of this embodiment is demonstrated, referring FIGS. 1-5. First, the structure of the drive apparatus 10 is demonstrated. Next, the control operation of the control object using the drive apparatus 10 of this embodiment is demonstrated. Next, the effect of this embodiment is demonstrated.

In addition, in this specification, the depth direction of the drive apparatus 10 is demonstrated as arrow X, the width direction as arrow Y, and the height direction as arrow Z. FIG. FIG. 3: is a side view (right side view) of the drive apparatus 10, Comprising: It corresponds to the figure at the time of seeing the drive apparatus 10 by the arrow A in FIG. 1 and FIG.

≪Configuration≫

The drive apparatus 10 of this embodiment has a function of controlling the drive of a motor (an example of a drive target, not shown).

As shown in FIGS. 1-5, the drive apparatus 10 of this embodiment has the housing 20 (an example of a box), the fan 30 (an example of a blower part), and the mounting board 40 ( An example of the drive unit, the flow path unit 50, the guide plate 60, the electronic component unit 70 (an example of the low heat generating unit), and the guide plate 80 are configured.

<Housing>

As shown in FIG. 1 and FIG. 2, the housing 20 of this embodiment is a rectangular parallelepiped box comprised of six plates as an example. 3 and 4, the housing 20 has a fan 30, a mounting substrate 40, a flow path part 50, a guide plate 60, and an electronic component therein. The part 70 (an example of the low heat generating part) and the guide plate 80 are disposed. In the following description, the board shown by the code | symbol 26 is the front panel 26 (an example of a 1st side wall), and the board of the right side side when the housing 20 is seen from the front panel 26 side is a right side panel. (22) (an example of the second side wall), the plate facing the front panel 26 is called the back panel 24.

Here, when the housing 20 is seen from the right side, the part of the left side (front panel 26 side) of the right side panel 22 is called some opening (it is called inlet 22A). Is an example of another intake port.) Is formed. The back panel 24 is formed with an elongated opening (hereinafter referred to as an exhaust port 24A) along its height direction. The front panel 26 is provided with a plurality of openings (hereinafter referred to as inlet port 26A). The intake openings 22A, the exhaust openings 24A, and the intake openings 26A are slit-shaped openings, for example. In the lower portion of the back panel 24, an input terminal 24B (input unit) for receiving electric power supplied to the fan 30, the mounting board 40, and the electronic component unit 70 from an external power source (not shown). An example) is provided. In addition, the right side panel 22 is detachable from the housing main body (the part which removed the right side panel 22 from the housing 20) as an example.

<Fan>

The fan 30 of this embodiment sends the air sucked in from the some inlet port 22A and the some inlet port 26A to the mounting board 40, and functions to cool the mounting board 40 which generate | occur | produces heat | fever at the time of operation | movement. Have

As shown in FIG. 3, the fan 30 of this embodiment is plural, and is arranged in linear form along the height direction. And each fan 30 flows air from the front panel 26 side to the back panel 24 side at the time of operation | movement. Here, the broken arrow in FIG. 3 and FIG. 4 shows the air flow which flows in the housing 20 by operation | movement of each fan 30. As shown in FIG. As an example, the some fan 30 is arrange | positioned in the position of the center vicinity of the width direction and the depth direction of the housing 20 (refer FIG. 3 and FIG. 4). From another viewpoint, each fan 30 of this embodiment is arrange | positioned in the position spaced apart from the inner surface of the housing 20. As shown in FIG.

As will be described later in detail, in the drive device 10 of the present embodiment, each quantity of the mounting substrate 40, the flow path portion 50, the guide plate 60, and the guide plate 80 is determined by the quantity of the fan 30. It is the same. And, as shown in Figs. 3 and 4, each fan 30, together with each mounting substrate 40, each flow path portion 50, each guide plate 60 and each guide plate 80, It consists. Here, in FIG. 3, only the top unit of the apparatus height direction is attached | subjected among each unit. As shown in FIG. 3, each fan 30 is disposed on the front panel 26 side than the respective mounting substrates 40 with the housing 20 viewed from the right side. That is, each fan 30 is arrange | positioned between each mounting board 40 and the front panel 26 (plural inlet openings 26A). In addition, when the housing 20 is seen from the right side, the plurality of intake ports 22A formed in the right side panel 22 are located on the front panel 26 side rather than the respective fans 30. And as mentioned above, since each fan 30 flows air from the front panel 26 side to the back panel 24 side at the time of operation | movement, each fan 30 is at the time of operation | movement. The air sucked from the plurality of intake ports 22A and the plurality of intake ports 26A is sent to each of the mounting substrates 40. In addition, the air sent to the mounting board 40 by the fan 30 is exhausted to the outside of the housing 20 from the exhaust port 24A (refer FIG. 2 and FIG. 3) formed in the back panel 24. have.

<Mounting Board>

Each mounting board 40 of the present embodiment has a function of outputting a signal for driving a motor (not shown). Each mounting board 40 is, for example, a printed board 42, a driver 44 (an example of a driving element), and an electronic component 46 other than the driver 44 (for example, a capacitor, a resistor, an amplifier, etc.). ) Is configured to include. The driver 44 and the electronic component 46 are mounted on one side of the printed board 42 (hereinafter referred to as mounting surface 42A). Moreover, each mounting surface 42A is facing the inner surface of the right side panel 22 as an example. In addition, as shown in FIG. 3, each mounting board 40 has the rectangular board 48 seen from the right side side below. Electronic components (not shown) are mounted on the rear surface side of the rectangular plate 48.

<Euro part>

Each flow path part 50 of this embodiment has a function which forms the flow path of the air sent to the each mounting board | substrate 40 side with the fan 30 with each mounting board | substrate 40. FIG. As shown in FIG. 4, the flow path part 50 is arrange | positioned at the surface (henceforth a back surface 42B) side on the opposite side to the mounting surface 42A in each mounting substrate 40. As shown in FIG. In addition, the flow path part 50 is comprised including the heat sink 52 (an example of a heat radiation part) and the surrounding wall 54, as shown in FIG.

As shown in FIG. 5, the heat sink 52 is fixed to the rear surface 42B of each mounting substrate 40, and radiates heat generated from each mounting substrate 40 during operation. have. As shown in FIG. 4 and FIG. 5, the heat sink 52 of the present embodiment is, as an example, from one end side to the other end side of each mounting substrate 40 in the device depth direction, and also to the front side side. In view of the above, the plurality of plates 52A protruding to the left in the width direction of the device are arranged at predetermined intervals along the device height direction.

Enclosure wall 54 surrounds heat sink 52 with mounting substrate 40, as shown in FIG. 5. In addition, the enclosing wall 54 and the mounting board 40 are heat sinks in the state which opened the side where the fan 30 in the apparatus depth direction is arrange | positioned, and the opposite side (the exhaust port 24A side). 52). In addition, as shown in FIG. 4, the opening width of the opening formed by the enclosure wall 54 and the mounting substrate 40 is larger than the width of the fan 30, and the opening edge of the opening is larger than the fan 30. It is located outside the apparatus width direction.

By the above structure, the flow path part 50 (heat sink 52 and the surrounding wall 54) of this embodiment heats the board | substrate 40 from the heat sink 52 to the air sent from the fan 30. FIG. It is supposed to radiate heat.

<Information board>

The guide plate 60 of this embodiment is arrange | positioned between the opening on the exhaust port 24A side formed with the mounting board 40 and the surrounding wall 54, and the exhaust port 24A, and is sent out from the opening on the exhaust port 24A side. Has a function of guiding the compressed air to the exhaust port 24A. The guide plate 60 of this embodiment is a flat plate as an example. Here, "guiding air to the exhaust port 24A" means guiding the air flow to the exhaust port 24A.

<Electronic component part>

The electronic component part 70 of this embodiment is arrange | positioned between the fan 30 and the intake port 26A in the housing 20, as shown in FIG. 3 and FIG. Together, the electric circuit is configured, and at the time of operation, the amount of heat generated is lower than that of the mounting substrate 40. The electronic component part 70 has the relay circuit part 72 and the capacitor | condenser 74 as an example.

The relay circuit portion 72 is a circuit for supplying electric power to the mounting board 40. One terminal (not shown) is connected to the ground of the capacitor 74, and the other terminal (not shown) is connected to the DC voltage which rectified the output from an external power supply (not shown). In other words, the capacitor 74 is connected between the external power source and the ground. In this specification, "connected between an external power supply and a ground" means connecting between the DC voltage which rectified the output from an external power supply, and ground. 3 and 4, the condenser 74 is disposed on the fan 30 side (input terminal 24B side) in the device depth direction rather than the relay circuit portion 72. As shown in FIG. In addition, the external power supply of this embodiment is a three-phase power supply as an example. In addition, in this specification, ground means signal ground and it is set as voltage 0 (V).

Induction Edition

As shown in FIGS. 3 and 4, the guide plate 80 of the present embodiment has a gap formed between the fan 30 and the intake port 26A in the apparatus depth direction (more specifically, And a gap formed between the fan 30 and the condenser 74 in the device depth direction. The guide plate 80 has a function of guiding the air sucked in from the intake port 22A formed in the right side panel 22 to the fan 30. The guide plate 80 of this embodiment is a flat plate as an example. As shown in FIG. 4, the guide plate 80 is disposed side by side on the mounting substrate 40 at the front side of the device depth in the mounting substrate 40. Here, "guiding air to the fan 30" means to direct the air flow to the exhaust port 24A.

The above is description regarding the structure of the drive apparatus 10 of this embodiment.

≪Control action≫

Next, the control operation of a motor (not shown) using the drive device 10 of the present embodiment will be described with reference to the drawings.

The operator connects an external power source (not shown) to the input terminal 24B (see FIGS. 2 to 4) of the drive device 10, and the fan 30, the mounting board 40, and the electronic component unit ( Power 70). Next, the operator turns on (turns on) an operation switch (not shown) provided in the drive device 10. In addition, an operator inputs an output condition into a panel (not shown) provided in the drive apparatus 10. As a result, the drive device 10 operates the relay circuit portion 72 and the mounting board 40 in accordance with the output conditions. In connection with this, the signal for driving a motor (not shown) from the mounting board 40 is output to a motor.

In addition, when the operator turns on an operation switch (not shown) provided in the drive device 10, the fan 30 operates. As a result, as shown in FIGS. 3 and 4, the air sucked from the plurality of inlets 26A and the plurality of inlets 22A passes through a portion surrounded by the enclosure wall 54 and the mounting substrate 40. It is discharged | emitted from the exhaust port 24A.

When the operator turns off the operation switch, the supply of power from the external power supply is stopped, the operation of each component is stopped, and the motor control operation of the present embodiment is terminated.

The above is description of the control operation of the motor using the drive apparatus 10 of this embodiment.

≪Effects≫

Next, the effect (1st-8th effect) of this embodiment is demonstrated with reference to drawings. Here, in order to demonstrate the effect of this embodiment, when comparing this embodiment with the comparative embodiment demonstrated below, when using the same component as this embodiment in the said comparative form, the same code | symbol as this embodiment is shown. use.

<First effect>

The 1st effect is a position where the fan 30 is spaced apart from the inner surface of the housing 20 in the housing 20, and is arrange | positioned between the mounting board 40 and the intake port 26A (FIG. 3 and FIG. 4). The first effect will be described in comparison with the first comparative embodiment shown in FIG. 6.

In the drive device 10A of the first comparative embodiment, as shown in FIG. 6, the fan 30 is disposed in contact with the inlet port 26A. That is, the fan 30 is not disposed away from the inlet port 26A. Moreover, in the 1st comparative form, it arrange | positions in order of the fan 30, the electronic component part 70, and the mounting board | substrate 40. FIG. A 1st comparative aspect has the structure similar to this embodiment other than the said point.

In the case of the first comparative embodiment, since the fan 30 is disposed in contact with the inlet port 26A, there is a pressure loss that much (as long as it is arranged in contact with it).

In contrast, in the present embodiment, as shown in FIGS. 3 and 4, the fan 30 is a position spaced apart from the inner surface of the housing 20 in the housing 20, and is mounted on the mounting substrate 40. It is arrange | positioned between 26 A of inlet ports. That is, in the case of this embodiment, the fan 30 is arrange | positioned apart from the inlet port 26A. Therefore, in the case of this embodiment, there is no pressure loss as much as the fan 30 which generate | occur | produces in the case of a 1st comparative form is arrange | positioned in contact with the inlet port 26A.

Therefore, the drive apparatus 10 of this embodiment can reduce pressure loss compared with the drive apparatus 10A of a 1st comparative form.

<Second effect>

The second effect is applied to the drive device including the housing 20 and the mounting board 40 disposed in the housing 20, the fan 30, and the electronic component unit 70 having a lower heat generation amount than the mounting board 40. In this case, the electronic component portion 70 is disposed on the inlet port 26A side with the fan 30 interposed therebetween, and the mounting substrate 40 is disposed on the exhaust port 24A side. 2nd effect is demonstrated compared with 2nd comparative aspect shown in FIG.

As shown in FIG. 7, the drive apparatus 10B of a 2nd comparative form differs from the drive apparatus 10 (refer FIG. 3) of this embodiment, the mounting board 40 and the electronic component part 70 ) Is reversed. The second comparative embodiment has the same configuration as the present embodiment except for the above points.

In the second comparative embodiment, in the device depth direction, a component (mounting board 40) having a large heat generation amount is disposed on a side far from the exhaust port 24A among the two components arranged with the fan 30 interposed therebetween. . Therefore, there is a possibility that a part of the air heated in contact with the mounting substrate 40 remains in the housing 20 without reaching the exhaust port 24A.

On the other hand, in this embodiment, as shown in FIG. 3 and FIG. 4, in the device depth direction, a component having a larger heat generation amount among two components arranged with the fan 30 interposed therebetween (mounting board 40). ) Is disposed near the exhaust port 24A. Therefore, in the case of the present embodiment, compared with the case of the second comparative embodiment, the possibility that a part of the air heated in contact with the mounting substrate 40 remains in the housing 20 without reaching the exhaust port 24A is low.

Therefore, the drive device 10 of the present embodiment has a higher cooling efficiency than the drive device 10B of the second comparative embodiment.

In addition, when the drive device 10 of the present embodiment is compared with the drive device 10A of the first comparative embodiment, the pressure loss is reduced, so that the space (space between the fan 30 and the inlet port 26A) is reduced. ) Can be said to be effective. In other words, since the drive loss 10 of the present embodiment can reduce the pressure loss based on the above reason, the cooling efficiency of the mounting substrate 40 can be increased by increasing the air volume, and the housing 20 It can be said that effective use of space within is possible.

<Third effect>

The third effect is that the drive device 10 of the present embodiment opens the heat sink 52 and the fan 30 side and the exhaust port 24A side fixed to the rear surface 42B of the mounting substrate 40. In the state, it is an effect of having the surrounding wall 54 which encloses the heat sink 52 with the mounting board 40. 3rd effect is demonstrated compared with 3rd comparative form (illustration omitted).

The drive apparatus (not shown) of a 3rd comparative form is not equipped with the heat sink 52 and the surrounding wall 54. As shown in FIG. The third comparative form has a configuration similar to the present embodiment except for the above points.

In the third comparative form, since the enclosing wall 54 is not provided, the air sent from the fan 30 may diffuse in the housing 20.

In contrast, the drive device 10 of the present embodiment includes an enclosure wall 54. Therefore, the air sent from the fan 30 is the part surrounded by the enclosure wall 54 and the mounting board | substrate 40 (so-called part of a duct) in the point which suppresses the diffusion of air compared with the case of the 3rd comparative form. Easy to pass through Moreover, the drive apparatus 10 of this embodiment is equipped with the heat sink 52 arrange | positioned in the part of a duct. Therefore, in the case of this embodiment, compared with the case of 3rd comparative form, it is easy to transmit the heat which generate | occur | produced from the mounting board 40 to the air which passes through the inside of the said duct.

Therefore, as for the drive apparatus 10 of this embodiment, the cooling efficiency of the mounting board 40 is high compared with the case of the 3rd comparative form.

<Fourth effect>

The fourth effect is that the drive device 10 of the present embodiment is disposed between the opening on the side of the exhaust port 24A formed of the mounting substrate 40 and the surrounding wall 54 and the exhaust port 24A, and the exhaust port 24A. This is the effect of having the guide plate 60 (refer FIG. 3 and FIG. 4) which guides the air discharged | emitted from the opening of the side to the exhaust port 24A. 4th effect is demonstrated compared with 4th comparative form (illustration omitted).

The drive device (not shown) of the 4th comparative form is not equipped with the guide plate 60. A 4th comparative aspect has the structure similar to this embodiment other than the said point.

In the case of the fourth comparative embodiment, since the guide plate 60 is not provided, the air blown out from the opening on the exhaust port 24A side of the duct formed of the enclosure wall 54 and the mounting substrate 40 is supplied to the exhaust port 24A. There is a fear that it will not reach and will spread into the housing 20.

In contrast, the drive device 10 of the present embodiment has a guide plate 60 as shown in FIGS. 3 and 4. Therefore, the air sent out from the opening on the exhaust port 24A side of the duct formed of the enclosure wall 54 and the mounting substrate 40 is more likely to be guided to the exhaust port 24A than in the case of the fourth comparative embodiment ( More easily reach the exhaust port 24A).

Therefore, the drive apparatus 10 of this embodiment has high exhaust efficiency compared with the case of the 4th comparative aspect. Thereby, the drive apparatus 10 of this embodiment can increase the flow velocity of the air in the part (part of a duct) enclosed by the enclosure wall 54 and the mounting board 40. FIG. That is, the drive apparatus 10 of this embodiment can make the cooling efficiency of the mounting board 40 high, so that the said flow velocity is large.

<Fifth effect>

The fifth effect is that the inlet port 22A is formed in the right side panel 22 adjacent to the front panel 26 where the inlet port 26A is formed. 5th effect is demonstrated compared with 5th comparative form (not shown).

In the drive device (not shown) of the fifth comparative embodiment, the inlet port 22A is not formed in the right side panel 22. A 5th comparative aspect has the structure similar to this embodiment other than the said point.

Therefore, the drive device 10 of the present embodiment has a larger air intake amount than in the case of the fifth comparative embodiment. Accordingly, the drive device 10 of the present embodiment can increase the cooling efficiency of the mounting substrate 40 as the amount of intake air is large.

<Sixth effect>

The sixth effect is based on the premise that 22 A of inlet ports are formed in the right side panel 22, and is disposed between the fan 30 and the inlet port 26A, and the air sucked from the inlet port 22A is fanned. This is an effect of having a guide plate 80 (see FIGS. 3 and 4) leading to 30. The sixth effect will be described in comparison with the sixth comparative form (not shown).

The drive device (not shown) of the sixth comparative aspect is not provided with a guide plate 80. The sixth comparative aspect has the same configuration as the present embodiment except for the above-mentioned points.

Therefore, the drive device 10 of the present embodiment has a larger amount of air guided to the portion surrounded by the enclosure wall 54 and the mounting substrate 40 than in the case of the sixth comparative embodiment. Accordingly, the drive device 10 according to the present embodiment has a high cooling efficiency of the mounting substrate 40.

<Seventh Effect>

The seventh effect is based on the premise that the electronic component part 70 has the relay circuit part 72 and the capacitor | condenser 74, and the capacitor | condenser 74 is arrange | positioned rather than the relay circuit part 72 at the mounting board 40 side. It is the effect of being present (see FIGS. 3 and 4). 7th effect is demonstrated compared with 7th comparative aspect (refer FIG. 8).

In the drive device 10C of the seventh comparative aspect, the relay circuit portion 72 is disposed on the mounting substrate 40 side rather than the capacitor 74. That is, in the case of the seventh comparative embodiment, the arrangement of the relay circuit portion 72 and the condenser 74 is opposite to that of the present embodiment. The seventh comparative aspect has a configuration similar to the present embodiment except for the above-mentioned points.

In the seventh comparative embodiment, since the capacitor 74 is spaced apart from the external power supply by the arrangement space of the relay circuit portion 72, the supply stability of the electric power from the external power supply (not shown) to the mounting substrate 40 by that amount. This may become unstable.

On the other hand, in the case of this embodiment, compared with the case of the seventh comparative embodiment, the capacitor 74 is arranged as close to the external power source as the arrangement space of the relay circuit portion 72.

Therefore, the drive device 10 of the present embodiment has a higher supply stability of electric power from the external power supply to the mounting substrate 40 than the drive device 10C of the seventh comparative embodiment.

<Eighth effect>

The eighth effect is an effect that the portion facing the mounting surface 42A of the mounting substrate 40 in the housing 20, that is, the right side panel 22 is detachable from the housing main body. In the case of the present embodiment, for example, an electronic component (electronic component 46 other than driver 44 and driver 44) mounted on mounting board 40 or mounting board 40, see FIGS. 3 and 4. In the case of maintenance, etc., it can be said that workability with respect to the mounting board 40 and the said electronic component is easy.

As mentioned above, although embodiment mentioned above was described about this invention as an example, the technical scope of this invention is not limited to this embodiment. For example, the following forms are also included in the technical scope of this invention.

For example, in this embodiment, an example of a drive object was demonstrated as a motor (not shown). However, as long as the drive object is driven by a drive device having a configuration exhibiting any of the effects described above, one example of the drive object may not be a motor. For example, a light source (not shown), a heat source (not shown), a power source (not shown), or other driving target may be used.

In addition, in the description of this embodiment, each fan 30, each mounting board 40, each flow path part 50, each guide plate 60, and each guide plate 80 comprises a unit, respectively, The drive device 10 has been described as having four units. However, the quantity of the said unit may not be four. For example, one may be sufficient and five or more may be sufficient. This is because the effects of any of the above are also exhibited in these modified examples.

In addition, in the description of this embodiment, each fan 30, each board | substrate 40, each flow path part 50, each guide plate 60, and each guide plate 80 is comprised by the unit, respectively. It was. However, the form contained in the technical scope of this invention should just be equipped with the fan 30 and mounting board 40 which have a positional relationship in the relationship with the housing 20 and the housing 20 at least. In addition, in the form included in the technical scope of the present invention, the plurality of mounting substrates 40 may be cooled by one fan 30.

In addition, in description of this embodiment, it demonstrated that an external power supply was a three-phase power supply. However, as long as electric power can be supplied to the drive device 10 of the present embodiment and the drive device of the modification, the external power supply may not be a three-phase power supply. For example, the external power supply may be a single-phase power supply (not shown), a two-phase power supply (not shown), or other power supply. In the case of these modifications, the capacitor 74 has one terminal (not shown) connected to 0 (V) (signal ground), and the other terminal (not shown) is output from the external power supply (DC voltage) of the modification. ) Or DC voltage obtained by rectifying the output from an external power supply. Also in these cases, this means that the capacitor 74 is connected between an external power supply and 0 (V) (signal ground).

In addition, in description of the effect of this embodiment, it was set as the comparative form for demonstrating the 2nd-7th effect about the 2nd-7th comparative form, respectively. However, since each comparative form is the structure which exhibits a 1st effect at least, it is a matter of course that each comparative form is a form included in the technical scope of this invention.

10: drive unit
20: housing (an example of a box)
22: right side panel (an example of the 2nd side wall, an example of the plate detachable from a box main body)
22A: Intake vent (an example of another intake vent)
24A: air vent
26: front panel 26 (an example of the first sidewall)
26A: Intake vent
30: fan (an example of the blowing unit)
40: mounting board (example of driving unit)
42: mounting surface (an example of one side)
44: driver (example of driving element)
52: heat sink (an example of a heat dissipation unit)
54: siege wall
60: information board
70: electronic component part (an example of a low heat generating part)
72: relay circuit part
74: condenser
80: induction plate

Claims (12)

delete delete delete delete delete A box formed with an inlet and an outlet,
A driving unit disposed in the box and outputting a signal for driving a driving object;
A blower in a position spaced apart from an inner surface of the box, disposed at a position between the drive unit and the intake port, for sending air sucked from the intake port to the drive unit;
It is arranged in the box between the blower and the intake port, and constitutes an electric circuit together with the drive unit, and has a low heat generation unit having a lower heat generation amount than the drive unit in operation.
The box is provided with an input section of electric power supplied to the drive section and the blower section from an external power source,
The low heat generating portion has a relay circuit portion for supplying electric power to the driving portion, and a capacitor connected between the external power supply and ground,
The capacitor is arranged on the input side rather than the relay circuit portion,
drive. The method of claim 6,
The said drive part is a board | substrate with which the drive element was mounted in one surface,
A heat dissipation unit fixed to the other side of the mounting substrate and dissipating heat generated from the mounting substrate during operation;
An enclosure wall surrounding the heat dissipation unit together with the mounting substrate in a state where the blower side and the exhaust port side are opened.
Drive device provided with. The method of claim 7, wherein
A guide plate disposed between the opening on the exhaust port side formed of the mounting substrate and the enclosure wall and the exhaust port, and guiding air discharged from the opening on the exhaust port side to the exhaust port.
Drive device provided with. The method of claim 6,
The box is located on the opposite side of the drive unit with the blower in between, and has a first sidewall on which the intake vent is formed, and a second sidewall adjacent to the first sidewall,
Another intake port is formed in the second side wall, which is opened between the intake port and the blower, as viewed from the second side wall side.
drive. The method of claim 9,
A gap is formed between the blower and the intake port,
An induction plate disposed in the gap to guide air sucked from the other intake port into the blower;
Drive device provided with. delete The method according to any one of claims 6 to 10,
The said drive part is a mounting board in which the drive element was mounted in one surface,
The part which the said one side faces in the said box becomes a part of plate which is removable from a box main body,
drive.

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