CN110829741A - Direct current motor with strong overload capacity - Google Patents

Direct current motor with strong overload capacity Download PDF

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Publication number
CN110829741A
CN110829741A CN201911270763.7A CN201911270763A CN110829741A CN 110829741 A CN110829741 A CN 110829741A CN 201911270763 A CN201911270763 A CN 201911270763A CN 110829741 A CN110829741 A CN 110829741A
Authority
CN
China
Prior art keywords
end cover
motor
wire frame
shell
rear end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911270763.7A
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Chinese (zh)
Inventor
谭云宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongshan Huawei Motor Co Ltd
Original Assignee
Zhongshan Huawei Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhongshan Huawei Motor Co Ltd filed Critical Zhongshan Huawei Motor Co Ltd
Priority to CN201911270763.7A priority Critical patent/CN110829741A/en
Publication of CN110829741A publication Critical patent/CN110829741A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/02—Details of the magnetic circuit characterised by the magnetic material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2706—Inner rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

The invention discloses a direct current motor with strong overload capacity, which comprises a shell, a driving system arranged in the shell and fan blades positioned outside the shell and controlled by the driving system to rotate; the shell comprises a front end cover, a rear end cover, a front wire frame matched with the front end cover, a rear wire frame matched with the rear end cover, a stator positioned between the front wire frame and the rear wire frame and internally provided with a slotted hole, and a winding wound on the rear wire frame of the front wire frame; the driving system comprises a rotor positioned in a hollow position in the stator, a shaft with one end penetrating through the rotor and the other end penetrating through the front end cover, and a driving plate which is fixed on one side of the stator facing the rear end cover and is used for receiving the action of starting, stopping and braking signals of the motor; the direct current motor has good characteristics, can output large torque at low speed, can provide large starting torque, has high working efficiency and strong overload capacity, has excellent performance in a dragging system, and is suitable for being assembled and used by products in multiple fields.

Description

Direct current motor with strong overload capacity
Technical Field
The invention particularly relates to a direct current motor with strong overload capacity.
Background
The motor is widely used in household appliances, electric equipment, automobiles, industrial equipment, aviation and the like. The alternating current asynchronous motor is used in the traditional industry, so that the energy consumption is high, the efficiency is low, and the service life is short; bottle strength is often present in the face of product upgrade, with a number of insurmountable drawbacks.
Disclosure of Invention
In view of the above, the present invention is to provide a dc motor with high working efficiency and strong overload capability, so that the dc motor has excellent performance in a dragging system, and is suitable for assembling and using products in multiple fields.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a direct current motor with strong overload capacity comprises a shell, a driving system arranged in the shell, and fan blades positioned outside the shell and controlled to rotate by the driving system; the shell comprises a front end cover, a rear end cover, a front wire frame matched with the front end cover, a rear wire frame matched with the rear end cover, a stator positioned between the front wire frame and the rear wire frame and internally provided with a slotted hole, and a winding wound on the rear wire frame of the front wire frame; the driving system comprises a rotor positioned in a hollow position in the stator, a shaft with one end penetrating through the rotor and the other end penetrating through the front end cover, and a driving plate which is fixed on one side of the stator facing the rear end cover and is used for receiving the starting, stopping and braking signals of the motor.
Furthermore, a screw is further arranged on the shell.
Furthermore, four corners of the front end cover are arranged in a protruding mode.
Furthermore, a front clamp spring is arranged at one end, extending towards the front end cover, of the axial front end cover, and a rear clamp spring is arranged at one end, extending towards the rear end cover, of the axial front end cover.
Furthermore, a front end cover ball bearing is further arranged at one end, extending towards the front end cover, of the shaft, and a rear end cover ball bearing is arranged at one end, extending towards the rear end cover, of the shaft.
Furthermore, a meson is arranged at the front end of the front end cover ball bearing.
Furthermore, the rear end of the rear end cover ball bearing is also provided with a wave pad.
Furthermore, a lead extending out of the shell is further arranged on the driving plate.
Furthermore, the fan blades can be arranged on a shaft in the front of the front end cover, a shaft in the rear of the rear end cover or on the shafts in the front of the front end cover and the rear of the rear end cover simultaneously.
The technical effects of the invention are mainly reflected in the following aspects: this direct current motor's characteristic is good, can export big torque under the low-speed, can provide big starting torque, and work efficiency is high in addition, the overload capacity is strong for it has outstanding performance in the drive system, rotates and drives the fan blade simultaneously and gives motor self heat dissipation, thereby reaches and dispels the heat extension motor life for self, and application scope is wider.
Drawings
Fig. 1 is a front view of a dc motor with high overload capability according to the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
fig. 4 is an external structure diagram of a driving plate of a dc motor with strong overload capability according to the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.
Example 1
A direct current motor with strong overload capacity is shown in figure 1 and comprises a shell 1, a driving system 2 arranged in the shell 1 and fan blades 3 which are positioned outside the shell 1 and controlled by the driving system to rotate;
as shown in fig. 2-3, the housing 1 includes a front cover 11, a rear cover 12, a front bobbin 13 engaged with the front cover 11, a rear bobbin 14 engaged with the rear cover 12, a stator 15 located between the front bobbin 13 and the rear bobbin 14 and having a slot therein, and a winding 16 wound around the rear bobbin 14 of the front bobbin 13, the slot in the stator 15 engaging with the front bobbin 13 and the rear bobbin 14; the driving system 2 includes a rotor 21 located in a hollow position inside the stator 15, a shaft 22 having one end penetrating the rotor 21 and the other end penetrating the front cover 11, and a driving plate 23 fixed on one side of the stator 15 facing the rear cover 12 and receiving the start, stop and brake signals of the motor. The shell 1 is further provided with a screw 17, and the front end cover 11 and the rear end cover 12 can be connected and fixed through the screw 17, so that the structure of the direct current motor is fixed.
One end of the shaft 22 extending towards the front end cover 11 is provided with a front snap spring 221, and one end of the shaft 22 extending towards the rear end cover 12 is provided with a rear snap spring 222, so that the stability of the rotation of the shaft 22 can be further stabilized through the front snap spring 221 and the rear snap spring 222. The end of the shaft 22 extending to the front end cover 11 is further provided with a front end cover ball bearing 223, and the end extending to the rear end cover 12 is provided with a rear end cover ball bearing 224, so that the shaft 22 can be stably supported, and the smoothness of rotation is improved. The front end of the front end cover ball bearing 223 is further provided with a meson 2231. The rear end of the rear end cover ball bearing 224 is also provided with a wave pad 2241. The driving board 23 is further provided with a lead 231 extending out of the housing 1 and capable of being externally connected with a power supply.
The fan blade 3 can be arranged on the shaft 22 in the front of the front end cover 11, the shaft 22 in the back of the back end cover 12 or on the shafts 22 in the front of the front end cover 11 and in the back of the back end cover 12, and the fan blade is driven to be poured into the motor through the end covers when the direct current motor rotates, so that the motor and the periphery are cooled. In this embodiment, the fan blade 3 is mounted on the front end cover 11.
In this embodiment, four corners on the front end cover 11 are provided with protrusions, so that the placement stability is good, and the assembly is convenient. The centers of the front end cover 11 and the rear end cover 12 are concave and are suitable for mounting the fan blades 3, fan-shaped holes are formed in the surfaces of the front end cover 11 and the rear end cover 12, and when the motor rotates, wind driven by the fan blades 3 flows into the motor.
In the present embodiment, the rotor 21 is composed of permanent magnetic shoes and silicon steel sheets,
example 2
As shown in fig. 4, in the present embodiment, the fundamental difference from embodiment 1 is that: the driver board 23 may be placed outside the housing and connected to the lead 231, and the lead 231 is connected inward to the drive system 2.
The method is characterized in that:
1. the rotor made of the silicon steel mixed magnetic block made of the permanent magnetic material can detect the polarity of the motor rotor;
2. the driving plate consists of power electronic devices and an integrated circuit and has the functions of receiving starting, stopping and braking signals of the motor;
3. the stator is wound with windings to form an armature.
The principle is as follows: when the dc motor is powered on, the generated dc current forms a fixed magnetic field, and at the same time, the drive board 23 detects the position of the motor rotor 21 in real time, and then supplies corresponding current to the dc motor according to the position of the rotor 21, so that the stator 15 generates a rotating magnetic field with a uniformly changing direction, and the rotor 21 can rotate along with the magnetic field.
The technical effects of the invention are mainly reflected in the following aspects: this direct current motor's characteristic is good, can export big torque under the low-speed, can provide big starting torque, and work efficiency is high in addition, the overload capacity is strong for it has outstanding performance in the drive system, rotates and drives the fan blade simultaneously and gives motor self heat dissipation, thereby reaches and dispels the heat extension motor life for self, and application scope is wider.
The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims (9)

1. A direct current motor with strong overload capacity comprises a shell, a driving system arranged in the shell, and fan blades positioned outside the shell and controlled to rotate by the driving system; the method is characterized in that: the shell comprises a front end cover, a rear end cover, a front wire frame matched with the front end cover, a rear wire frame matched with the rear end cover, a stator positioned between the front wire frame and the rear wire frame and internally provided with a slotted hole, and a winding wound on the rear wire frame of the front wire frame; the driving system comprises a rotor positioned in a hollow position in the stator, a shaft with one end penetrating through the rotor and the other end penetrating through the front end cover, and a driving plate which is fixed on one side of the stator facing the rear end cover and is used for receiving the starting, stopping and braking signals of the motor.
2. A dc motor with high overload capability as claimed in claim 1, wherein: the shell is also provided with screws.
3. A dc motor with high overload capability as claimed in claim 1, wherein: four corners on the front end cover are arranged in a protruding mode.
4. A dc motor with high overload capability as claimed in claim 1, wherein: and a front clamp spring is arranged at one end extending towards the axial front end cover, and a rear clamp spring is arranged at one end extending towards the rear end cover.
5. A dc motor with high overload capability as claimed in claim 1, wherein: the one end that the axle extends to the front end cap still is provided with front end cap ball bearing, and the one end that extends to the rear end cap is provided with rear end cap ball bearing.
6. A dc motor with high overload capability as claimed in claim 5 wherein: the front end of the front end cover ball bearing is also provided with a meson.
7. A dc motor with high overload capability as claimed in claim 5 wherein: the rear end of the rear end cover ball bearing is also provided with a wave pad.
8. A dc motor with high overload capability as claimed in claim 1, wherein: the drive plate is also provided with a lead wire extending out of the shell.
9. A dc motor with high overload capability as claimed in claim 1, wherein: the fan blades can be arranged on a shaft in the front of the front end cover, a shaft in the rear of the rear end cover or on the shafts in the front of the front end cover and the rear of the rear end cover simultaneously.
CN201911270763.7A 2019-12-12 2019-12-12 Direct current motor with strong overload capacity Pending CN110829741A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911270763.7A CN110829741A (en) 2019-12-12 2019-12-12 Direct current motor with strong overload capacity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911270763.7A CN110829741A (en) 2019-12-12 2019-12-12 Direct current motor with strong overload capacity

Publications (1)

Publication Number Publication Date
CN110829741A true CN110829741A (en) 2020-02-21

Family

ID=69544876

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911270763.7A Pending CN110829741A (en) 2019-12-12 2019-12-12 Direct current motor with strong overload capacity

Country Status (1)

Country Link
CN (1) CN110829741A (en)

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