JP2582273Y2 - Motor mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a motor such as a convection fan motor of a hot air heater.

[0002]

2. Description of the Related Art Conventionally, in this type of motor mounting structure, a motor (hereinafter referred to as a motor) is used as shown in FIGS.
Is fixed to the center, and both ends are bent to form a leg portion 10, and a short portion 13 is formed by bending both ends to be fixed to the main body and further bent at the center to form a leg portion of the motor fixing bracket 9. Motor fixing bracket mounting portion 18 fixed to 10
The short portion 13 of the main body mounting member 11 is fixed to the main body by sandwiching the short portion 13 in a sandwich shape with a vibration isolating member 14 and fixed to the main body with screws from a vertical direction. The main body mounting bracket 11 is erected, and the legs 10 of the motor mounting bracket 9 are sandwiched between the motor mounting bracket mounting portions 18 located above the main body mounting bracket 10 by the vibration isolating member 14 to mount the motor mounting bracket. The screw was fixed to the portion 18 from the vertical direction.

[0003]

However, in this conventional motor mounting structure, of the vertical vibration and the horizontal vibration due to the operation of the motor, the vertical vibration is caused by the bending of the bracket or the motor fixing bracket 9. By providing a double connection portion sandwiched by the vibration isolating members up to the main body, it was possible to sufficiently attenuate. However, with respect to horizontal vibration, since the connection portion is fixed with a screw from the vertical direction, the vibration is transmitted through this screw, the vibration cannot be attenuated, and noise reduction cannot be sufficiently achieved.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. To solve the above-mentioned problems, in particular, the structure of the present invention is as follows. A main body mounting bracket having both ends bent into an L-shape to form a short portion, and a lateral vibration absorbing bracket having a plate spring portion and an electric motor fixing bracket mounting portion provided by bending substantially at the center of the plate spring portion. The fixing of the legs of the motor fixing bracket to the mounting portion of the motor fixing bracket of the transverse vibration absorbing bracket and the fixing of the short portion of the main body mounting bracket to the main body are clamped by the vibration-proofing member and fixed vertically. The fixation of the long part of the fixing member and the leaf spring portion of the transverse vibration absorbing member is carried out by being sandwiched by vibration isolating members and fixed in the horizontal direction.

[0005]

A lateral vibration absorbing bracket 1 is provided between a motor fixing bracket 9 having a motor mounted thereon and a main body mounting bracket 11 fixed to the main body.
6 are connected to each other, and both ends of the leaf spring portion 17 of the lateral vibration absorbing bracket 16 are connected to the long portion 12 of the main body mounting bracket 11 by a vibration isolating member 14.
Is fixed in the horizontal direction while being pinched by the plate spring portion 1 so that horizontal vibrations caused by the operation of the motor can be prevented.
7 and the vibration damping member 14 at the connection point at both ends of the leaf spring portion 17 is significantly attenuated, and the vertical vibration is caused by the bending of each metal fitting and the connection point by the double vibration damping member in the vertical direction. Significantly attenuated.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a motor mounting structure according to the present invention. Reference numeral 1 denotes a hot-air heater having a built-in combustion mechanism and the like, which discharges hot air generated by combustion into a room as warm air to perform heating.
Reference numeral 2 denotes a combustion chamber for performing combustion, below which an oil amount controller (not shown) and a solenoid valve (not shown) for supplying and stopping fuel.
And a combustion air chamber (not shown) for supplying combustion air into the combustion chamber 2. Reference numeral 3 denotes a double-cylinder supply / exhaust top which is provided on the back of the warm air heater 1 and discharges exhaust gas generated by combustion to the outside and simultaneously sucks combustion air from the outside.
It is provided with a distal end projecting outside through a through hole (not shown) provided in a wall separating the room and the outside.

Reference numeral 4 denotes a convection fan provided behind the combustion chamber 2, driven by a fan motor 5, fixed to the rear of an exhaust pipe housing case 6, and further protected by a convection fan case 7. Hot air is blown from an outlet 8 formed in the front of the hot air heater 1 and the exhaust pipe storage case 6
It is provided to cool the exhaust pipe inside to lower the exhaust gas temperature.

Reference numeral 9 denotes a motor fixing bracket for horizontally moving a fan motor 5 having a convection fan 4 attached to a tip thereof at a substantially central position.
, And bent at both ends into an L-shape to form a leg 10 having a mounting hole (not shown). Reference numeral 11 denotes a main body mounting bracket which also forms a mounting hole (not shown) in a short portion 13 formed by bending both ends of a long portion 12 having a mounting hole (not shown), and hollows the upper and lower portions of the short portion 13. The mounting member is sandwiched between the vibration isolating members 14 in a sandwich shape, and is fixed to the exhaust pipe storage case 6 by inserting the mounting hole with the screw 15 so that the long portion 12 is erected.

Reference numeral 16 denotes a transverse vibration absorbing bracket, which comprises a leaf spring portion 17 and a motor fixing bracket mounting portion 18 and is provided with mounting holes (not shown) formed at both ends of the leaf spring portion 17 by two vibration isolating members 14, respectively. It is clamped and fixed with the mounting hole of the long part 12 of the main body mounting bracket 11 and a screw, and is narrower in width than the leaf spring part 17 and is bent substantially in the center of the leaf spring part 17 into an L-shape so that the mounting hole ( (Not shown), the mounting hole of the leg 10 of the motor fixing bracket 9 is clamped by the vibration isolating member 14 in the mounting hole of the motor fixing bracket mounting portion 18 provided with a screw, and the screw is inserted through the mounting hole. The mounting part 18 and the leg 10 are fixed.

Next, the operation of this embodiment will be described. When the same operation is performed on the hot air heater 1 as in the related art, combustion starts and the convection fan 4 is driven by the fan motor 5, whereby the vibration caused by the drive of the fan motor 5 is transmitted to the motor fixing bracket 9. Go.

The vibration is mainly in the vertical direction (hereinafter referred to as longitudinal vibration)
First, the vertical vibration causes the motor mounting surface of the motor fixing bracket 9 to vibrate up and down, whereby the leg 10 vibrates up and down. This leg 1
The upper and lower vibrations are greatly attenuated by the upper and lower vibration isolating members 14 sandwiching the leg 10, and the attenuated longitudinal vibration is further connected to the lateral vibration absorbing bracket 1 by the leg 10.
It is transmitted to 6.

As for the vertical vibration, the horizontal vibration absorbing bracket 16 is attached to the main body mounting bracket 11 at both ends of the leaf spring portion 17 by vertically vibrating a screw 15 connecting and fixing the horizontal vibration absorbing bracket 16 to the main body mounting bracket. The longitudinal portion 12 of the eleventh portion 11 is continuously bent so that the longitudinal vibration transmitted to the horizontal vibration absorbing member 16 is transmitted to the main body mounting member 11 with almost no attenuation.

The longitudinal vibration transmitted to the main body mounting bracket 11 is attenuated by bending the long portion 12 and further greatly attenuated by the upper and lower vibration isolating members 14 sandwiching the short portion 13, whereby the motor The longitudinal vibration generated by the mounting bracket 9 is significantly attenuated before being transmitted to the exhaust pipe storage case 6 to which the main body mounting bracket 11 is fixed, and becomes very small. As a result, almost no vertical vibration is transmitted to the exhaust pipe storage case 6. .

Next, the lateral vibration caused by the driving of the motor generated by the electric motor fixing bracket 9 causes the motor mounting surface of the electric motor fixing bracket 9 to vibrate right and left, whereby the leg 10 vibrates left and right. This lateral vibration is transmitted from the leg 10 to the lateral vibration absorbing bracket 1.
6, the leg 10 of the motor fixing bracket 9 and the motor fixing bracket mounting portion 18 of the lateral vibration absorbing bracket 16 are bent to vibrate in the vertical direction, and the leaf spring 17 is continuously bent right and left. I do.

In particular, since the distance between the fixed portions of the plate spring portion 17 with the screws at both ends is long, the amount of deflection of the plate spring portion 17 on the left and right is large, so that the lateral vibration is greatly attenuated by the deflection of the plate spring portion 17. Of the main body mounting bracket 11
2 is hardly transmitted to the exhaust pipe housing case 6.

[0016]

In summary, the present invention provides a motor fixing bracket having a motor mounted thereon and both ends bent to form a leg, a main body mounting bracket formed by bending both ends of a long portion into an L shape to form a short portion, and a plate. A horizontal vibration absorbing metal fitting having a spring portion and a motor fixing metal fitting attachment portion provided by being bent substantially at the center of the leaf spring portion. The leg portion of the motor fixing metal fitting and the motor fixing metal fitting attaching portion of the horizontal vibration absorbing metal fitting are provided. The fixing part and the short part of the body mounting bracket and the main body are fixed vertically by sandwiching with a vibration isolating member, and the long part of the main body fixing bracket and the leaf spring part of the transverse vibration absorbing bracket are fixed with a vibration isolating member. By sandwiching and fixing in the horizontal direction, the longitudinal vibration and transverse vibration generated by driving the motor can be greatly attenuated without reducing the mounting strength of the motor, thereby significantly reducing the noise generated by driving the motor. so Is shall.

[Brief description of the drawings]

FIG. 1 is a front perspective view of a hot air heater provided with an embodiment of the present invention.

FIG. 2 is a rear perspective view of the same.

FIG. 3 is a detailed view of a mounting portion of the electric motor.

FIG. 4 is a plan view of a mounting portion of the electric motor.

FIG. 5 is a detailed view of a conventional mounting portion.

FIG. 6 is a plan view of a mounting portion of a conventional example.

[Explanation of symbols]

 Reference Signs List 5 motor 9 motor fixing bracket 10 leg 11 main body mounting bracket 12 long section 13 short section 14 vibration isolating member 16 lateral vibration absorbing bracket 17 leaf spring section 18 motor fixing bracket mounting section

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 53-561 (JP, U) Japanese Utility Model Sho 54-43059 (JP, U) Japanese Utility Model Hei 1-73658 (JP, U) Japanese Utility Model Hei 4- 43766 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F24H 9/06 302

Claims (1)

(57) [Scope of request for utility model registration] 1. A motor fixing bracket 9 having a leg 10 formed by attaching both ends of a motor 5 and a main body mounting bracket 11 having a short portion 13 formed by bending both ends of a long portion 12 into an L-shape. , A horizontal vibration absorbing bracket 16 formed with a motor fixing bracket mounting portion 18 provided to be bent substantially at the center of the plate spring portion 17, and the leg 10 of the motor fixing bracket 9.
The fixing of the horizontal vibration absorbing bracket 16 to the electric motor fixing bracket mounting portion 18 and the fixing of the short portion 13 of the main body mounting bracket 11 to the main body are fixed vertically by clamping with a vibration isolator 14. An electric motor mounting structure characterized in that the long portion (12) and the leaf spring portion (17) of the transverse vibration absorbing bracket (16) are fixed in the horizontal direction by being sandwiched by vibration isolating members (14).