JP2014082887A - Motor vibration control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor vibration control device which effectively performs vibration suppression and temperature rising suppression despite its simple structure.SOLUTION: A motor vibration control device 1A reduces vibrations transmitted from a motor 30 to a motor attachment plate 40 and includes: a vibration control member 10A which is disposed between the motor 30 and the motor attachment plate 40 and reduces the vibrations transmitted from the motor 30 to the motor attachment plate 40; and a heat radiation member 20A including a first heat radiation part 21A which contacts with the motor 30 thereby radiating heat of the motor 30 and a second heat radiation part 22A which is connected with the first heat radiation part 21A and contacts with the motor attachment plate 40 thereby transmitting heat of the first heat radiation part 21A to the motor attachment plate 40. At least one of the first heat radiation part 21A and the second heat radiation part 22A is held between the motor 30 and the vibration control member 10A or between the motor attachment plate 40 and the vibration control member 10A.

Description

  The present invention relates to a motor vibration isolator that reduces vibration transmitted from a motor to a motor mounting plate and at the same time promotes heat dissipation of the motor.

  Conventionally, with the diversification of OA devices, the demand for high-performance stepping motors has increased. This motor does not require feedback control, has low speed, high torque, and high start / stop reliability, and is used, for example, in an optical system mechanism and a paper automatic processing mechanism in OA equipment.

  As the performance of motors increases, the demand for motor mounts for suppressing vibrations generated in the structure of the motors has also increased. Conventionally, as such a motor mount, a rubber material (antivibration member) is sandwiched between two metal plates (metal fittings), and the metal plate and the rubber material are bonded with an adhesive (for example, Patent Documents). 1). This is a motor vibration isolator that employs a small mount having a laminated structure of a so-called metal plate / adhesive / rubber material / adhesive / metal plate.

  According to this, the vibration of the motor is transmitted to the motor mounting plate side by a rubber material interposed between the metal plate of the motor mount for mounting the motor and the metal plate on the side of mounting the motor mount on the motor mounting plate side (housing side). Anti-vibration effect can be obtained.

JP-A-5-168193

  However, in the above-described motor vibration isolator, since there is a vibration isolating member made of a rubber material between the individual metal plates, a sufficient effect cannot always be obtained from the viewpoint of promoting heat dissipation of the motor and suppressing temperature rise. .

  SUMMARY OF THE INVENTION An object of the present invention is to provide a motor vibration isolator capable of satisfactorily suppressing vibration and temperature rise while having a simple configuration.

  A motor vibration isolator according to the present invention is a motor vibration isolator that reduces vibration transmitted from a motor to a motor mounting plate. The motor vibration isolating device is disposed between the motor and the motor mounting plate and is moved from the motor to the motor mounting plate. A vibration isolating member that reduces vibration transmitted, a first heat dissipating part that contacts the motor and dissipates heat of the motor, and is connected to the first heat dissipating part and contacts the motor mounting plate. A heat dissipating member having a second heat dissipating part that transmits heat of the heat dissipating part to the motor mounting plate, at least one of the first heat dissipating part and the second heat dissipating part being the motor and the vibration isolating unit. It is characterized by being sandwiched between members, or between the motor mounting plate and the vibration isolating member.

  The motor vibration isolator of the present invention can reduce the vibration transmitted from the motor to the motor mounting plate by the vibration isolation member disposed between the motor and the motor mounting plate. Moreover, since the 1st heat radiating part which is contacting the motor and the 2nd heat radiating part which is contacting the motor mounting plate are connected, the heat radiating member can efficiently transmit the heat of the motor to the motor mounting plate. Can do. Further, at least one of the first heat radiating portion and the second heat radiating portion is sandwiched between the motor and the vibration isolating member or the motor mounting plate and the vibration isolating member and pressed against the motor or the motor mounting plate to be in close contact with each other. Has been. For this reason, the heat of a motor can be efficiently transmitted to a motor mounting plate, and the heat dissipation of a motor can be accelerated | stimulated.

1A is a perspective view showing a motor mounting plate, a motor, and a motor vibration isolator according to the first embodiment of the present invention disposed between them. FIG. (B) is the figure which looked at (A) from the arrow A direction. (C) is a BB line arrow view in (B), (D) is an enlarged view of the part P in (C). (A) is a perspective view of the motor vibration isolator of 1st Embodiment of this invention. (B) is the figure which looked at (A) from the arrow A direction. (C) is a CC line arrow directional view in (B). (D) is an enlarged view of a portion P in (C). (A) is a perspective view which shows a motor mounting plate, a motor, and the motor vibration isolator of 2nd Embodiment of this invention arrange | positioned among these. (B) is the figure which looked at (A) from the arrow A direction. (C) is a DD line arrow directional view in (B). (D) is an enlarged view of a portion P in (C). (A) is the perspective view which looked at the motor vibration isolator of 2nd Embodiment of this invention from the motor side. (B) is the perspective view which looked at the motor vibration isolator of 2nd Embodiment of this invention from the motor attachment board side. (C) is the figure which looked at (A) from the arrow A direction. (D) is the EE arrow directional view in (C). (E) is an enlarged view of a portion P in (D). (A) is a perspective view showing a motor mounting plate, a motor, and a motor vibration isolator of a third embodiment of the present invention disposed between them. (B) is the figure which looked at (A) from the arrow A direction. (C) is a FF line arrow directional view in (B). (D) is an enlarged view of a portion P in (C). (A) is a perspective view of the motor vibration isolator of 3rd Embodiment of this invention. (B) is the figure which looked at (A) from the arrow A direction. (C) is a GG arrow directional view in (B). (D) is an enlarged view of a portion P in (C).

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<First Embodiment>
A motor vibration isolator 1A according to a first embodiment of the present invention will be described with reference to FIGS.

  As shown in FIG. 1, the motor vibration isolator 1 </ b> A is disposed between a motor main body 31 of the motor 30 and a motor mounting plate (for example, a part of a housing to which the motor is mounted) 40.

  The motor 30 has a motor body (casing) 31 formed in a rectangular parallelepiped shape and an output shaft 32 protruding from the motor body 31.

  The motor body 31 has a front surface (side surface on the output shaft 32 side) 31a formed in a substantially rectangular flat shape. At the center of the front surface 31a, as shown in FIG. 1C, a columnar convex portion 33 that penetrates the motor vibration isolator 1A and the motor mounting plate 40 is formed. The motor 30 is positioned with respect to the motor mounting plate 40 by engaging the convex portion 33 with a through hole (not shown) of the motor mounting plate 40. In the illustrated example, two pulleys 34 and 34 are fixed to the output shaft 32 of the motor 30.

  The motor mounting plate 40 is formed of a metal plate having a size that can cover almost the entire front surface 31 a of the motor body 31. A bracket 41 for fixing the motor mounting plate 40 to another housing (not shown) is provided at the end of the motor mounting plate 40. The motor mounting plate 40 is formed with a screw hole (not shown) through which a screw (not shown) for attaching a vibration isolating member 10A described later with a screw (not shown) is passed. Further, the motor mounting plate 40 has a bolt hole (not shown) through which a bolt (not shown) for sandwiching the motor vibration isolator 1A disposed between the front surface 31a of the motor body 31 passes. It is installed.

  As shown in FIG. 2, the motor vibration isolator 1A includes a vibration isolation member 10A and a heat dissipation member 20A.

  The vibration isolating member 10A is a plate-like member formed of an elastic body or synthetic resin, and is formed in a rectangular shape having substantially the same size as the front surface 31a of the motor main body 31 described above. The vibration isolating member 10A has a surface 10a on the motor 30 side and a surface 10b on the motor mounting plate 40 side. As will be described later, the first heat radiating portion 21A is bonded to the surface 10a by the double-sided tape 24, and the surface 10b is pressed against the motor mounting plate 40.

  The heat radiating member 20A is formed of a bent plate-like (sheet-like) aluminum material, and as shown in FIG. 1, the first heat radiating portion 21A that contacts the motor 30 and the second heat radiating portion that contacts the motor mounting plate 40. 22A. The first heat radiating part 21A and the second heat radiating part 22A are integrally formed with the connecting part 23A therebetween.

  The heat radiating member 20 </ b> A is bonded to the vibration isolating member 10 </ b> A and the motor mounting plate 40 by the double-sided tape 24. Of the heat radiating member 20A, the first heat radiating portion 21A is formed in the same shape as the surface 10a of the vibration isolating member 10A, and is bonded to the surface 10a via a double-sided tape 24. On the other hand, as shown in FIG. 2, the second heat radiating portion 22A is connected to one end at the upper end of the first heat radiating portion 21A (the right end in FIGS. 2A and 2B) via the connecting portion 23A. It is provided so as to be folded upward. The surface of the second heat radiating portion 22 </ b> A on the motor mounting plate 40 side is bonded to the motor mounting plate 40 with a double-sided tape 24.

  The motor vibration isolator 1A having the above-described configuration is provided with a screw hole 1a and a bolt hole 1b that penetrate the motor vibration isolator 1A in the thickness direction. In the motor vibration isolator 1A, the vibration isolator 10A is fixed to the motor mounting plate 40 by a screw hole (not shown) of the motor mounting plate 40 and a screw (not shown) penetrating the screw hole 1a. Further, the entire motor vibration isolator 1A is fixed to the front surface 31a of the motor main body 31 by bolts (not shown) of the motor mounting plate 40 and bolts (not shown) penetrating the bolt holes 1b. That is, the entire motor vibration isolator 1 </ b> A is attached while being sandwiched between the motor attachment plate 40 and the motor 30.

  According to the motor vibration isolator 1A of the first embodiment described above, the following operations and effects can be achieved.

While having a simple configuration,
(1) Vibration transmitted from the motor 30 to the motor mounting plate 40 can be reduced by the vibration isolating member 10A.

  (2) Of the heat radiating member 20A, the first heat radiating portion 21A that contacts the motor 30 and the second heat radiating portion 22A that contacts the motor mounting plate 40 are connected via the connecting portion 23A. For this reason, since the heat generated in the motor 30 is transmitted to the motor mounting plate 40 via the first heat radiating portion 21A, the connecting portion 23A, and the second heat radiating portion 22A, the heat of the motor 30 can be efficiently radiated. Can do.

  (3) Since the first heat radiating portion 21A is in close contact with almost the entire front surface 31a of the motor body 31, the heat of the motor 30 is efficiently transmitted to the first heat radiating portion 21A.

Second Embodiment
With reference to FIG. 3, FIG. 4, the motor vibration isolator 1B of 2nd Embodiment of this invention is demonstrated.

  As shown in FIG. 3, the motor vibration isolator 1 </ b> B is disposed between the motor main body 31 of the motor 30 and a motor mounting plate (for example, a part of a housing to which the motor is mounted) 40.

  Since the motor 30 and the motor mounting plate 40 are the same as those in the first embodiment described above, the description thereof is omitted.

  As shown in FIG. 4, the motor vibration isolator 1B includes a vibration isolator 10B and a heat radiating member 20B.

  The vibration isolation member 10 </ b> B is a plate-like member formed of an elastic body or a synthetic resin, and is formed in a rectangular shape having substantially the same size as the front surface 31 a of the motor body 31. The anti-vibration member 10B has a surface 10a on the motor 30 side and a surface 10b on the motor mounting plate 40 side. As will be described later, the first heat radiating portion 21B is bonded to the surface 10a with a double-sided tape 24, and the second heat radiating portion 22B is bonded to the surface 10b with a double-sided tape 24.

  The heat radiating member 20 </ b> B is formed of a bent plate-like (sheet-like) aluminum material, and has a first heat radiating portion 21 </ b> B that contacts the motor 30 and a second heat radiating portion 22 </ b> B that contacts the motor mounting plate 40. . The first heat radiating part 21B and the second heat radiating part 22B are connected via a connection part 23B.

  The first heat radiating portion 21B and the second heat radiating portion 22B are formed in substantially the same shape as the surface 10a on the motor 30 side and the surface 10b on the motor mounting plate 40 side of the vibration isolating member 10B. The first heat radiating part 21B and the second heat radiating part 22B are connected to the upper end side and the lower end side through two connection parts 23B provided at a total of four places.

  The motor vibration isolator 1B having the above configuration is provided with a screw hole 1a and a bolt hole 1b penetrating through the motor vibration isolator 1B in the thickness direction. The motor vibration isolator 1B is fixed to the motor mounting plate 40 by a screw hole (not shown) of the motor mounting plate 40 and a screw (not shown) penetrating the screw hole 1a. Further, the motor vibration isolator 1B fixed to the motor mounting plate 40 is fixed to the front surface 31a of the motor body 31 by bolts (not shown) of the motor mounting plate 40 and bolts (not shown) penetrating the bolt holes 1b. The That is, the entire motor vibration isolator 1 </ b> B is attached while being sandwiched between the motor attachment plate 40 and the motor 30.

  According to the motor vibration isolator 1B of the second embodiment described above, the following operations and effects can be achieved.

While having a simple configuration,
(1) Vibration transmitted from the motor 30 to the motor mounting plate 40 can be reduced by the vibration isolating member 10B.

  (2) Of the heat radiating member 20B, the first heat radiating portion 21B that contacts the motor 30 and the second heat radiating portion 22B that contacts the motor mounting plate 40 are connected via the connecting portion 23B. For this reason, since the heat generated in the motor 30 is transmitted to the motor mounting plate 40 via the first heat radiating portion 21B, the connecting portion 23B, and the second heat radiating portion 22B, the heat of the motor 30 can be efficiently radiated. Can do.

  (3) The first heat radiating part 21B and the second heat radiating part 22B come into contact with each other in close contact with the front surface 31a of the motor body 31 and the motor mounting plate 40, respectively. For this reason, the heat of the motor 30 is efficiently transmitted to the first heat radiating portion 21B, and the heat of the second heat radiating portion 22B is efficiently transmitted to the motor mounting plate 40.

<Third Embodiment>
With reference to FIGS. 5 and 6, a motor vibration isolator 1C according to a third embodiment of the present invention will be described.

  As shown in FIG. 5, the motor vibration isolator 1 </ b> C is disposed between the motor main body 31 of the motor 30 and a motor mounting plate (for example, a part of a housing to which the motor is mounted) 40.

  Since the motor 30 and the motor mounting plate 40 are the same as those in the first embodiment described above, the description thereof is omitted.

  As shown in FIG. 6, the motor vibration isolator 1C includes a vibration isolator 10C and a heat radiating member 20C.

  The vibration isolating member 10 </ b> C is a plate-like member formed of an elastic body or synthetic resin, and is formed in a rectangular shape having substantially the same size as the front surface 31 a of the motor body 31 described above. The vibration isolating member 10A has a surface 10a on the motor 30 side and a surface 10b on the motor mounting plate 40 side. As will be described later, the front surface 31a of the motor body 31 is in close contact with the surface 10a, and the second heat radiating portion 22C is adhered to the surface 10b with a double-sided tape 24.

  The heat radiating member 20 </ b> C is formed of a bent plate-like (sheet-like) aluminum material, and includes a first heat radiating portion 21 </ b> C that contacts the motor 30 and a second heat radiating portion 22 </ b> C that contacts the motor mounting plate 40. . The first heat radiating portion 21C and the second heat radiating portion 22C are coupled in an “L” shape via a connecting portion 23C, as shown in FIGS.

  The heat radiating member 20 </ b> C is bonded to the upper surface 31 b of the motor body 31 and the vibration isolating member 10 </ b> C by the double-sided tape 24. Of the heat radiating member 20 </ b> C, the first heat radiating portion 21 </ b> C is bonded to the upper surface 31 b of the motor body 31 with a double-sided tape 24. On the other hand, the second heat radiating portion 22C is bonded to the surface 10b on the motor mounting plate 40 side of the vibration isolating member 10A with a double-sided tape 24.

  The motor vibration isolator 1C having the above-described configuration is provided with a screw hole 1a and a bolt hole 1b penetrating therethrough in the thickness direction. The motor vibration isolator 1C is fixed to the motor mounting plate 40 by a screw hole (not shown) of the motor mounting plate 40 and a screw (not shown) penetrating the screw hole 1a. Further, the entire motor vibration isolator 1C is fixed to the front surface 31a of the motor main body 31 by bolts (not shown) of the motor mounting plate 40 and bolts (not shown) penetrating the bolt holes 1b. That is, the motor vibration isolator 1 </ b> C is attached in a state where the vibration isolator 10 </ b> C and the second heat radiating portion 22 </ b> C are sandwiched between the motor attachment plate 40 and the motor 30.

  According to the motor vibration isolator 1C of the third embodiment described above, the following operations and effects can be achieved.

While having a simple configuration,
(1) The vibration transmitted from the motor 30 to the motor mounting plate 40 can be reduced by the vibration isolating member 10C.

  (2) Of the heat radiating member 20C, the first heat radiating portion 21C that contacts the motor 30 and the second heat radiating portion 22C that contacts the motor mounting plate 40 are connected via the connection portion 23C. For this reason, since the heat generated in the motor 30 is transmitted to the motor mounting plate 40 via the first heat radiating portion 21C, the connecting portion 23C, and the second heat radiating portion 22C, the heat of the motor 30 can be efficiently radiated. Can do.

  (3) Since the second heat radiating portion 22C comes into contact with the motor mounting plate 40 over almost the entire surface, it is transmitted from the motor 30 to the second heat radiating portion 22C via the first heat radiating portion 21C and the connecting portion 23C. Heat is efficiently transmitted to the motor mounting plate 40.

  In the above description, the case where the heat radiating members 20A, 20B, and 20C are formed of an aluminum material has been described, but instead, it may be formed of a stainless material, a copper material, or the like.

  1A, 1B, 1C ... Motor vibration isolator, 10A, 10B, 10C ... Vibration isolation member, 20A, 20B, 20C ... Heat radiation member, 21A, 21B, 21C ... First heat radiation part, 22A, 22B, 22C ... Second heat radiation Part, 30 ... motor, 40 ... motor mounting plate (casing)

Claims (7)

In a motor vibration isolator that reduces vibration transmitted from the motor to the motor mounting plate,
An anti-vibration member disposed between the motor and the motor mounting plate to reduce vibration transmitted from the motor to the motor mounting plate;
The first heat radiating part that contacts the motor and radiates the heat of the motor is connected to the first heat radiating part, and contacts the motor mounting plate to transmit the heat of the first heat radiating part to the motor mounting plate. A heat dissipating member having a second heat dissipating part,
At least one of the first heat radiating portion and the second heat radiating portion is sandwiched between the motor and the vibration isolating member, or between the motor mounting plate and the vibration isolating member,
The motor vibration isolator characterized by the above-mentioned. The first heat radiating portion is sandwiched between the motor and the vibration isolating member,
The second heat radiating portion is sandwiched between the motor mounting plate and the vibration isolation member.
The motor vibration isolator according to claim 1. The first heat radiating portion is sandwiched between the motor and the vibration isolation member.
The motor vibration isolator according to claim 1. The second heat radiating portion is sandwiched between the motor mounting plate and the vibration isolation member.
The motor vibration isolator according to claim 1. The heat dissipation member is configured such that the first heat dissipation portion and the second heat dissipation portion are integrated.
The motor vibration isolator according to any one of claims 1 to 4, wherein The heat dissipation member is formed of any one of aluminum material, stainless steel material, and copper material,
The motor vibration isolator according to any one of claims 1 to 5, wherein The vibration isolating member is formed of an elastic body or a synthetic resin.
The motor vibration isolator according to any one of claims 1 to 6.

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