Adjustable-speed motor with waterproof and dustproof shell

Abstract

The utility model relates to an adjustable-speed motor with a waterproof and dustproof shell, which comprises a motor shell of the adjustable-speed motor, the motor shell comprises a rectangular middle shell, two ends of the middle shell are respectively and fixedly connected with a front sealing shell cover and a rear sealing shell cover through bolts, and rectangular concave platforms are formed on the side walls of all sides of the middle shell. A rectangular positioning frame which is bent inwards is formed on the bottom surface of the concave table; and voltage-stabilizing heat dissipation assemblies are respectively inserted into the concave tables on all sides of the middle shell. The shell of the adjustable-speed motor is provided with the pressure stabilizing structure connected through the annular air bag, the size of the internal space of the motor can be changed based on the internal pressure change during operation of the motor, and then stable operation of the adjustable-speed motor is guaranteed.

Description

Technical field:

[0001] The utility model relates to the technical field of motors, and more specifically to a speed regulating motor provided with a waterproof and dustproof shell. Background technology:

[0002] The speed regulating motor is a kind of motor that changes the speed of the motor by changing the number of pole pairs, voltage, current, frequency and other methods to make the motor reach a higher performance. Due to its excellent performance, the speed regulating motor has been widely used in steel, power station, cable, chemical, petroleum, cement, textile, printing and dyeing, papermaking, machinery and other industrial sectors. Because of the working environment requirements of the motor, some speed regulating motors need to have dust and water resistance, that is, to prevent water or dust from entering the interior of the speed regulating motor; so some speed regulating motors are designed with a fully enclosed structure; and for the fully enclosed motor, during its operation, it will avoid generating heat, and the generated heat will cause the air inside the fully enclosed motor to expand, resulting in an increase in the pressure inside the fully enclosed motor. The increased internal pressure will affect the normal operation of the fully enclosed motor, and even cause the motor to deform, the closed shell to leak, and the motor to be damaged and scrapped; so in view of its temperature, an effective voltage stabilizing structure is required in the motor. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a speed-regulating motor with a waterproof and dustproof housing. The housing of the speed-regulating motor is provided with a voltage-stabilizing structure connected by an annular airbag. The size of the internal space of the motor can be changed based on the internal pressure changes when the motor is running, thereby ensuring the stable operation of the speed-regulating motor.

[0004] A speed regulating motor provided with a waterproof and dustproof housing comprises a motor housing of the speed regulating motor, the motor housing comprises a rectangular intermediate housing, two ends of the intermediate housing are respectively fixedly connected with a front sealing housing cover and a rear sealing housing cover by bolts, a rectangular concave platform is formed on the side wall of each side of the intermediate housing, and a rectangular positioning frame is formed on the bottom surface of the concave platform and bent inward; a voltage stabilizing and heat dissipating assembly is respectively inserted in the concave platform on each side of the intermediate housing;

[0005] The voltage-stabilizing and heat-dissipating assembly comprises a rectangular outer panel, a plurality of strip-shaped slots are formed in the middle of the outer panel, a rectangular ring-shaped air bag is fixedly pasted on the inner surface of the outer panel around the slot, a plurality of vents are formed on the air bag, and a plurality of voltage-stabilizing holes communicating with the vents are formed on the outer panel; a rectangular heat-dissipating aluminum plate is pastedly fixed on the side of the air bag away from the outer panel, the heat-dissipating aluminum plate is inserted in the positioning seat of the intermediate shell and formed with a plurality of heat-dissipating fins, and the heat-dissipating fins pass through the slots of the outer panel to expose the outer surface of the intermediate shell;

[0006] A plurality of mounting holes are formed on the outer panels on both sides of the airbag, and screws are inserted into the mounting holes. The screws pass through rectangular sealing washers and are threadedly fixed on the intermediate shell. The sealing washers are inserted on the outer side of the airbag and clamped between the inner surface of the outer panel and the bottom surface of the concave platform.

[0007] Preferably, the heat sinks are distributed in an array on the heat sink aluminum plate, and a plurality of screw sleeves are fixedly connected to the heat sink aluminum plate between the heat sinks. The screw sleeves are screwed with limiting bolts, and the limiting bolts are inserted into the outer panel.

[0008] Preferably, the thickness of the heat sink on the heat dissipation aluminum plate is equal to the width of the slot on the outer panel, and the length of the slot is greater than the width of the heat sink.

[0009] Preferably, outer surfaces of the outer panels are flush with outer side walls of the intermediate shell.

[0010] Preferably, the screw is a countersunk screw, and the head of the screw is flush with the outer surface of the outer panel.

[0011] Preferably, the length of the airbag is not greater than the length of the heat dissipation aluminum plate, and the width of the airbag is not greater than the width of the heat dissipation aluminum plate.

[0012] The beneficial effects of the utility model are:

[0013] The housing of the speed regulating motor is provided with a voltage stabilizing structure connected by an annular airbag. The size of the internal space of the motor can be changed based on the internal pressure change when the motor is running, thereby ensuring the stable operation of the speed regulating motor. Description of the drawings:

[0014] Figure 1 It is a structural schematic diagram of the utility model in a front view;

[0015] Figure 2 It is a cross-sectional schematic diagram of the voltage stabilizing and heat dissipating component of the utility model viewed from the side;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the voltage-stabilizing and heat-dissipating component of the utility model.

[0017] In the figure: 1. intermediate shell; 11. recess; 12. positioning frame; 2. front sealing shell cover; 3. rear sealing shell cover; 4. voltage stabilizing and heat dissipating assembly; 41. outer panel; 411. mounting hole; 412. slot; 413. voltage stabilizing hole; 42. heat dissipating aluminum plate; 421. heat sink; 43. air bag; 431. vent hole; 44. limit bolt; 45. screw sleeve; 5. screw; 6. sealing gasket. Specific implementation method:

[0018] Example: See Figures 1 to 3As shown, a speed regulating motor provided with a waterproof and dustproof housing comprises a motor housing of the speed regulating motor, the motor housing comprises a rectangular intermediate housing 1, two ends of the intermediate housing 1 are respectively fixedly connected with a front sealing housing cover 2 and a rear sealing housing cover 3 by bolts, a shaft hole is formed in the middle of the front sealing housing cover 2, the rotating shaft of the speed regulating motor extends out of the motor housing through the shaft hole, and the rotating shaft of the speed regulating motor is sealed and connected with the front sealing housing cover 2 through a sealing ring; a rectangular concave platform 11 is formed on the side wall of each side of the intermediate housing 1, and a rectangular positioning frame 12 is formed on the bottom surface of the concave platform 11 and bent inward; a voltage stabilizing heat dissipation component 4 is respectively inserted in the concave platform 11 on each side of the intermediate housing 1;

[0019] The voltage-stabilizing and heat-dissipating assembly 4 comprises a rectangular outer panel 41, a plurality of strip-shaped slots 412 are formed in the middle of the outer panel 41, a rectangular ring-shaped airbag 43 is fixedly attached to the inner surface of the outer panel 41 around the slots 412, a plurality of vents 431 are formed on the airbag 43, and a plurality of voltage-stabilizing holes 413 communicating with the vents 431 are formed on the outer panel 41; a rectangular heat-dissipating aluminum plate 42 is fixedly attached to the side of the airbag 43 facing away from the outer panel 41, the heat-dissipating aluminum plate 42 is inserted in the positioning seat 2 of the intermediate housing 1 and is formed with a plurality of heat-dissipating fins 421, and the heat-dissipating fins 421 pass through the slots 412 of the outer panel 41 to expose the outer surface of the intermediate housing 1;

[0020] A plurality of mounting holes 411 are formed on the outer panels 41 on both sides of the airbag 43, and screws 5 are inserted into the mounting holes 411. The screws 5 pass through the rectangular sealing gasket 6 and are screwed and fixed on the intermediate shell 1. The sealing gasket 6 is inserted into the outer side of the airbag 43 and clamped between the inner surface of the outer panel 41 and the bottom surface of the recessed platform 11. The voltage stabilizing and heat dissipating component 4 is sealed on the intermediate shell 1 through the sealing gasket 6.

[0021] The heat sink 421 is distributed in an array on the heat sink aluminum plate 42, and a plurality of screw sleeves 45 are fixedly connected to the heat sink aluminum plate 42 between the heat sink 421. The screw sleeves 45 are screwed with limit bolts 44, and the limit bolts 44 are inserted on the outer panel 41. The limit bolts 44 can constrain the heat sink aluminum plate 42 to prevent the heat sink aluminum plate 42 and the airbag 43 from separating; Figure 1 As shown, four limiting bolts 44 are provided and are respectively close to the middle of each side edge of the outer panel 41 .

[0022] A porous memory rubber is inserted inside both sides of the airbag 43 to assist the airbag 43 in resetting. When the speed regulating motor stops running and cools down, the air pressure inside the speed regulating motor decreases. The memory rubber helps the heat dissipation aluminum plate 42 to move inward, thereby stabilizing the air pressure inside the speed regulating motor.

[0023] The thickness of the heat sink 421 on the heat dissipation aluminum plate 42 is equal to the slot width of the slot 412 on the outer panel 41, and the length of the slot 412 is greater than the width of the heat sink 421. The heat dissipation aluminum plate 42, the outer panel 41 and the air bag 43 surround a rectangular air cavity, and the air cavity can be exhausted and inhaled through the slot 412.

[0024] The outer surfaces of the outer panels 41 are flush with the outer side walls of the intermediate housing 1 .

[0025] The screw 5 is a countersunk screw, the head of the screw 5 is flush with the outer surface of the outer panel 41 , and only the heat sink 421 protrudes from the middle housing 1 .

[0026] The length of the airbag 43 is not greater than the length of the heat dissipation aluminum plate 42 , the width of the airbag 43 is not greater than the width of the heat dissipation aluminum plate 42 , and the outer wall of the airbag 43 does not extend out of the outer side of the heat dissipation aluminum plate 42 .

[0027] Working principle: This application is a speed regulating motor with a waterproof and dustproof housing. Its main technical point is reflected in the waterproof and dustproof housing of the speed regulating motor, and the specific part is the voltage stabilizing heat dissipation component 4 of the intermediate housing 1. The heat inside the speed regulating motor can be dissipated through the heat dissipation aluminum plate 42;

[0028] When the speed regulating motor is running, the heat generated causes the air to expand, and the internal pressure of the motor will drive the heat dissipation aluminum plate 42 to move outward, thereby increasing the space inside the speed regulating motor to reduce the internal pressure of the motor.

[0029] When the speed regulating motor stops running and cools down, the internal pressure decreases, and the reduced internal pressure causes the heat dissipation aluminum plate 42 to move inward to achieve voltage stabilization; the airbag 43 of the present application is mainly used as a seal that facilitates compression deformation.

[0030] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A speed regulating motor provided with a waterproof and dustproof housing, comprising a motor housing of the speed regulating motor, the motor housing comprising a rectangular intermediate housing (1), the two ends of the intermediate housing (1) being respectively fixedly connected with a front sealing housing cover (2) and a rear sealing housing cover (3) by bolts, characterized in that: A rectangular concave platform (11) is formed on the side wall of each side of the intermediate shell (1), and a rectangular positioning frame (12) is formed on the bottom surface of the concave platform (11) and is bent inwards; a voltage stabilizing and heat dissipating assembly (4) is respectively inserted into the concave platform (11) on each side of the intermediate shell (1); The voltage-stabilizing and heat-dissipating assembly (4) comprises a rectangular outer panel (41), a plurality of strip-shaped slots (412) are formed in the middle of the outer panel (41), a rectangular ring-shaped air bag (43) is glued and fixed on the inner surface of the outer panel (41) around the slots (412), a plurality of vent holes (431) are formed on the air bag (43), and a plurality of voltage-stabilizing holes (413) communicating with the vent holes (431) are formed on the outer panel (41); a rectangular heat-dissipating aluminum plate (42) is glued and fixed on the side of the air bag (43) facing away from the outer panel (41), the heat-dissipating aluminum plate (42) is inserted into the positioning frame (12) of the intermediate shell (1) and is molded with a plurality of heat-dissipating fins (421), and the heat-dissipating fins (421) pass through the slots (412) of the outer panel (41) to expose the outer surface of the intermediate shell (1); A plurality of mounting holes (411) are formed on the outer panels (41) on both sides of the airbag (43), and screws (5) are inserted into the mounting holes (411). The screws (5) pass through a rectangular sealing gasket (6) and are screwed and fixed on the intermediate housing (1). The sealing gasket (6) is inserted and sleeved on the outer side of the airbag (43) and clamped between the inner surface of the outer panel (41) and the bottom surface of the concave platform (11).

2. A speed regulating motor with a waterproof and dustproof housing according to claim 1, characterized in that: The heat sinks (421) are distributed in an array on the heat sink aluminum plate (42); a plurality of screw sleeves (45) are fixedly connected to the heat sink aluminum plate (42) between the heat sinks (421); limiting bolts (44) are screwed onto the screw sleeves (45); and the limiting bolts (44) are inserted into the outer panel (41).

3. A speed regulating motor with a waterproof and dustproof housing according to claim 2, characterized in that: The thickness of the heat sink (421) on the heat dissipation aluminum plate (42) is equal to the width of the slot (412) on the outer panel (41), and the length of the slot (412) is greater than the width of the heat sink (421).

4. The speed regulating motor provided with a waterproof and dustproof housing according to claim 1, characterized in that: The outer surfaces of the outer panels (41) are respectively flush with the outer side walls of the intermediate shell (1).

5. The speed regulating motor provided with a waterproof and dustproof housing according to claim 4, characterized in that: The screw (5) is a countersunk screw, and the head of the screw (5) is flush with the outer surface of the outer panel (41).

6. The speed regulating motor provided with a waterproof and dustproof housing according to claim 1, characterized in that: The length of the airbag (43) is not greater than the length of the heat dissipation aluminum plate (42), and the width of the airbag (43) is not greater than the width of the heat dissipation aluminum plate (42).

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