CN216290441U

CN216290441U - Waterproof type direct current micromotor with overload protection function

Info

Publication number: CN216290441U
Application number: CN202122294040.XU
Authority: CN
Inventors: 巩贺华
Original assignee: Zhejiang Leshu Technology Co ltd
Current assignee: Zhejiang Leshu Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-12
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses a waterproof direct-current micromotor with an overload protection function, which comprises a motor shell and a motor base, wherein a second positioning bearing is fixedly arranged in an inner cavity of the motor shell through a support, a rotating rod is rotatably connected to the inner cavity of the second positioning bearing, a rotor is arranged at the top of the rotating rod, an output shaft is arranged at the top of the rotor, a rotating shaft is arranged at the top of the output shaft, a stator is arranged on the inner wall of the motor shell, and a baffle is fixedly arranged at the top of the inner cavity of the motor base. The utility model is provided with a motor shell, a core layer, a strength layer, a corrosion-resistant layer, a motor base, an overload protector, a power line, a top block, a rotating shaft, a stator, an output shaft, a first positioning bearing, a rotor, a spiral edge, a radiating fin, a baffle, a dustproof net, a ventilation net, a spiral groove, a second positioning bearing and a rotating rod, and solves the problems of poor waterproof effect, poor radiating effect and no overload protection function of the traditional direct current micro motor.

Description

Waterproof type direct current micromotor with overload protection function

Technical Field

The utility model relates to the technical field of direct current micro motors, in particular to a waterproof direct current micro motor with an overload protection function.

Background

The miniature direct current micro motor has the advantages that the efficiency of the miniature direct current motor is generally higher than that of other types of motors, so that the same output power is achieved, the size of the direct current motor is generally smaller, the miniature direct current motor is relatively suitable under the condition of limited installation position, but the traditional direct current micro motor is poor in waterproof effect and heat dissipation effect and does not have the function of overload protection, and therefore the waterproof direct current micro motor with the overload protection function is provided.

SUMMERY OF THE UTILITY MODEL

Solves the technical problem

Aiming at the defects of the prior art, the utility model provides the waterproof type direct current micromotor with the overload protection function, which has the advantages of good waterproof effect, good heat dissipation effect and overload protection function, and solves the problems of poor waterproof effect, poor heat dissipation effect and no overload protection function of the traditional direct current micromotor.

Technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a waterproof direct-current micromotor with an overload protection function comprises a motor shell and a motor base, wherein a second positioning bearing is fixedly arranged in an inner cavity of the motor shell through a support, an inner cavity of the second positioning bearing is rotatably connected with a rotating rod, a rotor is arranged at the top of the rotating rod, an output shaft is arranged at the top of the rotor, a rotating shaft is arranged at the top of the output shaft, a stator is arranged on the inner wall of the motor shell, a baffle is fixedly arranged at the top of the inner cavity of the motor base, a plurality of radiating fins are arranged in the inner cavity of the baffle, a ventilation net is arranged at the bottom of the motor base, a dust screen is arranged at the bottom of the ventilation net, a spiral edge is arranged at the top of the motor base, a spiral groove matched with the spiral edge is formed in the bottom of the motor shell, the motor shell comprises a core layer, a strength layer and a corrosion-resistant layer, the top of motor housing's top fixed mounting has the kicking block, and the kicking block rotates with the output shaft to be connected.

Preferably, the diameter of the output shaft is larger than that of the rotating shaft, and a sealing ring is arranged at the joint of the output shaft and the motor shell.

Preferably, the top of the inner cavity of the motor shell is fixedly provided with a first positioning bearing through a support, and the first positioning bearing is rotatably connected with the output shaft.

Preferably, the right side of the motor shell is provided with an overload protector, and the right side of the overload protector is provided with a power line.

Preferably, the corrosion-resistant layer is located on an outer surface of the strength layer, which is located on an outer surface of the core layer.

Preferably, the core layer is a polyurethane coating, the strength layer is an aluminum-titanium alloy layer, and the corrosion-resistant layer is a silicone rubber layer.

Advantageous effects

Compared with the prior art, the utility model provides a waterproof direct-current micromotor with an overload protection function, which has the following beneficial effects:

the power line is used for being connected with a power supply, the overload protector plays a protection role and prevents the motor from being damaged, the top block plays a waterproof role, the diameter of the output shaft is larger than that of the rotating shaft and can further prevent water from entering, the first positioning bearing enables the output shaft to be more stable, the motor base can be screwed at the bottom of the motor shell through the spiral edge and the spiral groove, the core layer increases the corrosion resistance of the motor shell, the strength layer increases the strength of the motor shell, the corrosion-resistant layer ensures the insulativity and the heat resistance of the motor shell, the dust screen can prevent dust from entering, the ventilation net plays a ventilation role and is matched with the heat dissipation fins to achieve a heat dissipation effect, and the problems that the traditional direct current micro motor is poor in waterproof effect and heat dissipation effect and does not have an overload protection function are solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of an enlarged motor housing according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is an enlarged structural diagram of the cross section of the motor housing of the utility model.

In the figure: 1. a motor housing; 101. a core layer; 102. a strength layer; 103. a corrosion-resistant layer; 2. a motor base; 3. an overload protector; 4. a power line; 5. a top block; 6. a rotating shaft; 7. a stator; 8. an output shaft; 9. a first positioning bearing; 10. a rotor; 11. a spiral edge; 12. a heat dissipating fin; 13. a baffle plate; 14. a dust screen; 15. a ventilation net; 16. a screw groove; 17. a second positioning bearing; 18. and (4) rotating the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", 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 simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "connected", and the like are to be construed broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The motor shell 1, the core layer 101, the strength layer 102, the corrosion-resistant layer 103, the motor base 2, the overload protector 3, the power line 4, the top block 5, the rotating shaft 6, the stator 7, the output shaft 8, the first positioning bearing 9, the rotor 10, the spiral edge 11, the radiating fins 12, the baffle 13, the dustproof net 14, the ventilation net 15, the spiral groove 16, the second positioning bearing 17 and the rotating rod 18 are all universal standard parts or parts known by a person skilled in the art, and the structure and the principle of the motor are known by the person skilled in the art through technical manuals or conventional experimental methods.

Referring to fig. 1-4, a waterproof dc micro-motor with overload protection function comprises a motor housing 1 and a motor base 2, wherein the right side of the motor housing 1 is provided with an overload protector 3, the right side of the overload protector 3 is provided with a power cord 4, the inner cavity of the motor housing 1 is fixedly provided with a second positioning bearing 17 through a bracket, the inner cavity of the second positioning bearing 17 is rotatably connected with a rotating rod 18, the top of the rotating rod 18 is provided with a rotor 10, the top of the rotor 10 is provided with an output shaft 8, the top of the inner cavity of the motor housing 1 is fixedly provided with a first positioning bearing 9 through a bracket, the first positioning bearing 9 is rotatably connected with the output shaft 8, the top of the output shaft 8 is provided with a rotating shaft 6, the diameter of the output shaft 8 is larger than that of the rotating shaft 6, the joint of the output shaft 8 and the motor housing 1 is provided with a sealing ring, the inner wall of the motor housing 1 is provided with a stator 7, the top of the inner cavity of the motor base 2 is fixedly provided with a baffle 13, the inner cavity of the baffle 13 is provided with a plurality of radiating fins 12, the bottom of the motor base 2 is provided with a ventilation net 15, the bottom of the ventilation net 15 is provided with a dust screen 14, the top of the motor base 2 is provided with a spiral edge 11, the bottom of the motor housing 1 is provided with a spiral groove 16 matched with the spiral edge 11 for use, the motor housing 1 comprises a core layer 101, a strength layer 102 and an anti-corrosion layer 103, the anti-corrosion layer 103 is positioned on the outer surface of the strength layer 102, the strength layer 102 is positioned on the outer surface of the core layer 101, the core layer 101 is a polyurethane coating, the strength layer 102 is an aluminum-titanium alloy layer, the anti-corrosion layer 103 is a silicon rubber layer, the top of the motor housing 1 is fixedly provided with a top block 5, the top block 5 is rotatably connected with an output shaft 8, a power line 4 is used for connecting with a power supply, the overload protector 3 plays a role in protection, prevents the motor from being damaged, and the top block 5 plays a role in water prevention, output shaft 8's diameter is greater than pivot 6, can further prevent into water, first location bearing 9 makes output shaft 8 more firm, can twist motor base 2 in motor housing 1's bottom through spiral limit 11 and spiral groove 16, sandwich layer 101 has increased motor housing 1's corrosion resistance, strength layer 102 has increased motor housing 1's intensity, motor housing 1's insulating nature and heat resistance have been guaranteed to corrosion resistance layer 103, dust screen 14 can prevent that the dust from getting into, ventilation net 15 plays the effect of ventilating, cooperation radiating fin 12, reach radiating effect, it is not good to have solved traditional little motor water-proof effects of direct current, the radiating effect is not good, and do not possess the problem of overload protection's function.

When using, power cord 4 is used for connecting the power, overload protection ware 3 plays the effect of protection, prevent that the motor is impaired, kicking block 5 plays waterproof effect, output shaft 8's diameter is greater than pivot 6, can further prevent into water, first location bearing 9 makes output shaft 8 more firm, can twist motor base 2 in motor housing 1's bottom through spiral limit 11 and spiral groove 16, sandwich layer 101 has increased motor housing 1's corrosion resistance, strength layer 102 has increased motor housing 1's intensity, motor housing 1's insulating nature and heat resistance have been guaranteed to corrosion-resistant layer 103, dust screen 14 can prevent that the dust from getting into, ventilation net 15 plays the effect of ventilating, cooperation radiating fin 12, reach radiating effect, traditional little DC micromotor water-proof effects has been solved, the radiating effect is not good, and do not possess the problem of overload protection's function.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waterproof type direct current micromotor of overload protection function, includes motor housing (1) and motor base (2), its characterized in that: the inner cavity of the motor shell (1) is fixedly provided with a second positioning bearing (17) through a support, the inner cavity of the second positioning bearing (17) is rotatably connected with a rotating rod (18), the top of the rotating rod (18) is provided with a rotor (10), the top of the rotor (10) is provided with an output shaft (8), the top of the output shaft (8) is provided with a rotating shaft (6), the inner wall of the motor shell (1) is provided with a stator (7), the top of the inner cavity of the motor base (2) is fixedly provided with a baffle (13), the inner cavity of the baffle (13) is provided with a plurality of radiating fins (12), the bottom of the motor base (2) is provided with a ventilation net (15), the bottom of the ventilation net (15) is provided with a dust screen (14), the top of the motor base (2) is provided with a spiral edge (11), the bottom of the motor shell (1) is provided with a spiral groove (16) matched with the spiral edge (11), motor housing (1) includes sandwich layer (101), intensity layer (102) and corrosion-resistant layer (103), the top fixed mounting of motor housing (1) has kicking block (5), and kicking block (5) and output shaft (8) rotate and are connected.

2. The waterproof type direct current micromotor with overload protection function according to claim 1, wherein: the diameter of the output shaft (8) is larger than that of the rotating shaft (6), and a sealing ring is arranged at the joint of the output shaft (8) and the motor shell (1).

3. The waterproof type direct current micromotor with overload protection function according to claim 1, wherein: the top of the inner cavity of the motor shell (1) is fixedly provided with a first positioning bearing (9) through a support, and the first positioning bearing (9) is rotatably connected with the output shaft (8).

4. The waterproof type direct current micromotor with overload protection function according to claim 1, wherein: the right side of motor housing (1) is provided with overload protection ware (3), the right side of overload protection ware (3) is provided with power cord (4).

5. The waterproof type direct current micromotor with overload protection function according to claim 1, wherein: the corrosion-resistant layer (103) is positioned on the outer surface of the strength layer (102), and the strength layer (102) is positioned on the outer surface of the core layer (101).

6. The waterproof type direct current micromotor with overload protection function according to claim 1, wherein: the core layer (101) is a polyurethane coating, the strength layer (102) is an aluminum-titanium alloy layer, and the corrosion-resistant layer (103) is a silicon rubber layer.