Brush motor convenient for heat dissipation

Abstract

The utility model relates to the technical field of brushed motors, and discloses a brushed motor convenient for heat dissipation, which comprises a shell, and a permanent magnet is fixedly mounted in the shell; and the heat dissipation mechanism is arranged in the front surface of the shell. Through the arrangement of the connecting rod, the gears, the fan blades and the gear ring, when the short shaft rotates, the short shaft rotates at the moment, the connecting rod drives the two gears and the two fan blades to revolve with the short shaft as the axis through the two circular shafts at the moment, and due to the fact that the two gears are meshed with the gear ring, when the gears revolve with the short shaft as the axis, the gears rotate at the same time; the fan blades rotate automatically under the driving of the gear, the fan blades blow air to the interior of the shell due to the design of the fan blades, so that the cooling effect is achieved, the fan blades can blow air to the interior of the shell in all directions due to the fact that the fan blades revolve while rotating, and then efficient heat dissipation can be conducted on the interior of the motor.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brush motor technical field, more specifically, the utility model relates to a brush motor convenient for heat dissipation. BACKGROUND

[0002] Brush motor is the brush device containing the rotary motor of the electric energy conversion into mechanical energy or the mechanical energy conversion into electric energy, and brush motor is the basis of all motors, it has the characteristics such as quick start, braking in time, smooth speed regulation in a wide range, control circuit is relatively simple.

[0003] Brush motor becomes the most common power object due to low cost and mature technology, but the internal heat accumulation phenomenon is very easy to appear after the long time operation of brush motor, and the magnetic force of magnet will be reduced over a long period of time, and the running efficiency of motor is reduced, if not in time for its cooling, the insulating material of the enameled coil in the internal armature can be damaged, and the enameled coil is short-circuited and burned, in order to cool the motor, the heat dissipation blades are arranged on the motor shaft in the prior art, so as to achieve the effect of cooling the motor, but in the process of actual use, the airflow generated by the heat dissipation blades can only blow from the surface of the motor shell, and the motor internal cannot be effectively cooled, so it needs to be improved. SUMMARY

[0004] In order to overcome the defects of the prior art, the utility model provides a brush motor convenient for heat dissipation, which has the advantages of high efficiency of the motor internal heat dissipation.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a brush motor convenient for heat dissipation, comprising:

[0006] The shell is internally fixedly installed with a permanent magnet;

[0007] The heat dissipation mechanism is arranged in the inside of the front face of the shell;

[0008] The heat dissipation mechanism comprises a first bearing, the outer surface of the first bearing is fixedly sleeved with the inside of the front face of the shell, a short shaft is fixedly sleeved in the inside of the first bearing, a connecting rod is fixedly sleeved with the front end of the outer surface of the short shaft, a circular shaft is movably sleeved in the inside of both ends of the connecting rod, a gear is fixedly sleeved with the outer surface of the circular shaft, a fan blade is fixedly installed on the back surface of the gear, the inside of the fan blade is fixedly sleeved with the outer surface of the circular shaft, a gear ring is engagedly connected with the outer surface of the gear, and the rear end of the gear ring is fixedly connected with the front face of the first bearing.

[0009] As a preferred technical scheme of the utility model, the back surface of the shell is provided with an air outlet, and the front face of the shell is provided with a connecting port.

[0010] As a preferred technical scheme of the utility model, the inside of the back of the shell is sleeved with a second bearing, the inside of the second bearing is sleeved with a rotating shaft, the front end of the outer surface of the rotating shaft is fixedly sleeved with the inside of the first bearing, and the front end of the rotating shaft is fixedly connected with the rear end of the short shaft.

[0011] As a preferred technical scheme of the utility model, the outer surface of the rotating shaft is fixedly sleeved with a rotor, and the rotor is wound with copper wire.

[0012] As a preferred technical scheme of the utility model, the rear end of the outer surface of the shell is fixedly sleeved with a protective shell, and the front face of the protective shell is provided with an air inlet.

[0013] As a preferred technical scheme of the utility model, the top end and the bottom end of the shell are fixedly installed with heat absorption plates, and the outer surface of the heat absorption plates is fixedly installed with heat dissipation fins.

[0014] As a preferred technical scheme of the utility model, the outer surface of the protective shell is fixedly sleeved with a water tank, the left side of the water tank is fixedly sleeved with a liquid inlet pipe, and the right side of the water tank is fixedly sleeved with a liquid outlet pipe.

[0015] As a preferred technical scheme of the utility model, the inside of the back of the water tank is fixedly sleeved with a connecting pipe, and the outer surface of the connecting pipe is fixedly sleeved with the inside of the heat dissipation fins.

[0016] As a preferred technical scheme of the utility model, the outer surface of the left and right sides of the shell is fixedly installed with a support, and the support is provided with a circular groove.

[0017] As a preferred technical scheme of the utility model, the heat dissipation fins are made of copper-aluminum alloy.

[0018] Compared with the prior art, the utility model has the advantages of the following:

[0019] 1、The utility model discloses a connecting rod, gear, fan blade and gear ring are set up, when the short shaft rotates, the connecting rod will drive two gears and two fan blades to revolve around the short shaft, since two gears are all engaged with the gear ring, when the gear revolves around the short shaft, will carry out autorotation simultaneously, the fan blade will be driven by the gear and rotate, since the design of the fan blade, the fan blade will blow the inside of the shell, thereby reach the cooling effect, since the fan blade rotates while revolving, can blow the inside of the shell all -round, and then can the high -efficient heat dissipation of motor inside.

[0020] 2, the utility model discloses a set up radiating fin, inlet pipe, outlet pipe and connecting pipe, because of the design of heat absorption plate and radiating fin, can carry out efficient absorption to the heat in the shell, and because radiating fin adopts copper aluminium alloy to make, will make radiating fin have good heat dissipation, when cooling liquid enters the left side of water tank by inlet pipe, cooling liquid in the left side of water tank will enter the inside of connecting pipe and flow into the right side of water tank subsequently, when cooling liquid flows through the inside of connecting pipe, will carry out efficient absorption to the heat of radiating fin, thereby enhancing the heat dissipation effect of motor, and the high temperature cooling liquid in the right side of water tank will flow out through outlet pipe subsequently. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structure schematic diagram of the utility model;

[0022] Figure 2 It is the back view structure schematic diagram of the utility model;

[0023] Figure 3 It is the section structure schematic diagram of the utility model;

[0024] Figure 4 It is the section structure schematic diagram of the water tank of the utility model;

[0025] Figure 5 It is the section structure schematic diagram of the heat absorption pipe of the utility model;

[0026] Figure 6 It is the explosion schematic diagram of the utility model.

[0027] In the drawing: 1, shell, 2, permanent magnet, 3, first bearing, 4, short shaft, 5, connecting rod, 6, round shaft, 7, gear, 8, fan blade, 9, gear ring, 10, second bearing, 11, rotating shaft, 12, rotor, 13, air outlet, 14, connecting port, 15, protective shell, 16, air inlet, 17, heat absorption plate, 18, radiating fin, 19, water tank, 20, support, 21, circular groove, 22, inlet pipe, 23, outlet pipe, 24, connecting pipe. DETAILED DESCRIPTION

[0028] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the utility model.

[0029] As Figures 1 to 6 shown, the utility model provides a brush motor of convenient heat dissipation has:

[0030] The shell 1, the inside of the shell 1 is fixedly installed with a permanent magnet 2;

[0031] The heat dissipation mechanism is arranged in the inside of the front face of the shell 1;

[0032] The heat dissipation mechanism comprises a first bearing 3, the outer surface of the first bearing 3 is fixedly sleeved with the inside of the front face of the shell 1, a short shaft 4 is fixedly sleeved in the inside of the first bearing 3, the front end of the outer surface of the short shaft 4 is fixedly sleeved with a connecting rod 5, the inside of both ends of the connecting rod 5 is movably sleeved with a round shaft 6, the outer surface of the round shaft 6 is fixedly sleeved with a gear 7, the back face of the gear 7 is fixedly installed with a fan blade 8, the inside of the fan blade 8 is fixedly sleeved with the outer surface of the round shaft 6, the outer surface of the gear 7 is meshed with a gear ring 9, the rear end of the gear ring 9 is fixedly connected with the front face of the first bearing 3.

[0033] When the short shaft 4 drives the connecting rod 5 to rotate, the connecting rod 5 drives the gear 7 and the fan blade 8 to revolve around the short shaft 4 at this time, since the gear 7 is meshed with the gear ring 9, the gear 7 drives the fan blade 8 to rotate around the short shaft 4 at this time, when the fan blade 8 rotates around the short shaft 4, the inside of the shell 1 is blown, so that the inside of the shell 1 is cooled, and when the fan blade 8 revolves around the short shaft 4, the inside of the shell 1 is blown in all directions, so that the heat is dissipated efficiently.

[0034] The back face of the shell 1 is provided with an air outlet 13, and the front face of the shell 1 is provided with a connecting port 14.

[0035] Due to the design of the connecting port 14, the air flow generated when the fan blade 8 rotates can enter the inside of the shell 1 through the connecting port 14, and due to the design of the air outlet 13, the air flow in the inside of the shell 1 can move to the outside of the shell 1 through the air outlet 13.

[0036] The inside of the back face of the shell 1 is fixedly sleeved with a second bearing 10, the inside of the second bearing 10 is fixedly sleeved with a rotating shaft 11, the front end of the outer surface of the rotating shaft 11 is fixedly sleeved with the inside of the first bearing 3, and the front end of the rotating shaft 11 is fixedly connected with the rear end of the short shaft 4.

[0037] Due to the design of the second bearing 10 and the first bearing 3, the rotating shaft 11 can be well supported, and when the rotating shaft 11 rotates in the inside of the second bearing 10 and the first bearing 3, the short shaft 4 is driven to rotate.

[0038] The outer surface of the rotating shaft 11 is fixedly sleeved with a rotor 12, and the rotor 12 is wound with a copper wire.

[0039] When the rotor 12 is electrified, electromagnetic induction is generated with the permanent magnet 2, so that the rotating shaft 11 rotates.

[0040] The rear end of the outer surface of the shell 1 is fixedly sleeved with a protective shell 15, and the front surface of the protective shell 15 is provided with an air inlet 16.

[0041] Due to the design of the protective shell 15, the fan blade 8 can be well protected.

[0042] The top end and the bottom end of the shell 1 are fixedly installed with heat absorption plates 17, and the outer surfaces of the heat absorption plates 17 are fixedly installed with heat dissipation fins 18.

[0043] Due to the design of the heat absorption plates 17, the heat in the shell 1 can be absorbed and conducted to the heat dissipation fins 18.

[0044] The outer surface of the protective shell 15 is fixedly sleeved with a water tank 19, the left side of the water tank 19 is fixedly sleeved with a liquid inlet pipe 22, and the right side of the water tank 19 is fixedly sleeved with a liquid outlet pipe 23.

[0045] Due to the design of the liquid inlet pipe 22, the cooling liquid can enter the left side of the water tank 19.

[0046] The inner surface of the back of the water tank 19 is fixedly sleeved with a connecting pipe 24, and the outer surface of the connecting pipe 24 is fixedly sleeved with the inner surface of the heat dissipation fin 18.

[0047] Due to the design of the connecting pipe 24, the cooling liquid on the left side of the water tank 19 can flow to the right side of the water tank 19 through the connecting pipe 24.

[0048] The outer surfaces of the left and right sides of the shell 1 are fixedly installed with supports 20, and the supports 20 are provided with circular grooves 21.

[0049] Due to the design of the support 20, the shell 1 can be well supported.

[0050] The heat dissipation fin 18 is made of copper-aluminum alloy.

[0051] Due to the fact that the heat dissipation fin 18 is made of copper-aluminum alloy, the heat dissipation fin 18 has excellent heat conductivity.

[0052] The working principle and use process of the utility model are as follows:

[0053] When the brush motor is running, the permanent magnet 2 and the rotor 12 will generate electromagnetic induction at this time, and the rotating shaft 11 is rotated, and the first bearing 3 and the second bearing 10 will provide good support to the rotating shaft 11, and at the same time, the short shaft 4 will be rotated under the driving of the rotating shaft 11, and then the short shaft 4 will drive the two circular shafts 6 to rotate through the connecting rod 5, and then the two circular shafts 6 will simultaneously drive the two gears 7 and the two fan blades 8 to revolve around the short shaft 4, and since the outer surfaces of the two gears 7 are connected with the outer surface of the gear ring 9, when the gears 7 revolve around the short shaft 4, they will simultaneously rotate around the circular shaft 6, and since the fan blades 8 are designed, when the fan blades 8 rotate, they can blow air into the inside of the shell 1 through the connecting port 14, and since the fan blades 8 revolve around the short shaft 4 while rotating, the fan blades 8 can blow air to all directions in the inside of the shell 1, thereby realizing the function of efficiently cooling the motor.

[0054] And since the heat absorption plate 17 is designed, it can efficiently absorb the heat in the inside of the shell 1, and then the heat absorbed by the heat absorption plate 17 will be conducted to the heat dissipation fin 18, and since the heat dissipation fin 18 is designed and made of copper-aluminum alloy, the heat dissipation fin 18 has the function of efficient heat dissipation, and at the same time, the operator will input the cooling liquid into the left side of the water tank 19 through the inlet pipe 22, and then the cooling liquid in the left side of the water tank 19 will enter the inside of the connecting pipe 24, at this time, the heat absorbed by the heat dissipation fin 18 will be transmitted to the inside of the cooling liquid through the connecting pipe 24, thereby realizing the function of cooling the heat dissipation fin 18, and then the cooling liquid after absorbing the heat will flow into the right side of the water tank 19, and then flow out through the outlet pipe 23, thereby realizing the function of enhancing the heat dissipation effect of the motor.

[0055] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0056] Although the embodiments of the present application have been shown and described, it should be understood by those ordinary skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A brushed motor with convenient heat dissipation, characterized in that, Including: The outer shell (1) has a permanent magnet (2) fixedly installed inside it; A heat dissipation mechanism is disposed inside the front of the outer casing (1); The heat dissipation mechanism includes a first bearing (3), the outer surface of the first bearing (3) is fixedly sleeved with the inside of the front side of the outer shell (1), a short shaft (4) is fixedly sleeved inside the first bearing (3), a connecting rod (5) is fixedly sleeved at the front end of the outer surface of the short shaft (4), a round shaft (6) is movably sleeved inside both ends of the connecting rod (5), a gear (7) is fixedly sleeved on the outer surface of the round shaft (6), a fan blade (8) is fixedly installed on the back of the gear (7), the inside of the fan blade (8) is fixedly sleeved with the outer surface of the round shaft (6), a gear ring (9) is meshed with the outer surface of the gear (7), and the rear end of the gear ring (9) is fixedly connected to the front side of the first bearing (3).

2. The brushed motor with convenient heat dissipation according to claim 1, characterized in that: An air outlet (13) is provided on the back of the outer casing (1), and a connection port (14) is provided on the front of the outer casing (1).

3. A brushed motor with convenient heat dissipation according to claim 1, characterized in that: The back of the outer shell (1) is fitted with a second bearing (10), and the inside of the second bearing (10) is fitted with a rotating shaft (11). The front end of the outer surface of the rotating shaft (11) is fitted with the inside of the first bearing (3), and the front end of the rotating shaft (11) is fixedly connected to the rear end of the short shaft (4).

4. A brushed motor with convenient heat dissipation according to claim 3, characterized in that: A rotor (12) is fixedly sleeved on the outer surface of the rotating shaft (11), and copper wire is wound on the rotor (12).

5. A brushed motor with convenient heat dissipation according to claim 1, characterized in that: A protective shell (15) is fixedly sleeved on the rear end of the outer surface of the outer shell (1), and an air inlet (16) is provided on the front of the protective shell (15).

6. A brushed motor with convenient heat dissipation according to claim 1, characterized in that: The top and bottom of the outer shell (1) are fixedly installed with heat absorption plates (17), and heat dissipation fins (18) are fixedly installed on the outer surface of the heat absorption plates (17).

7. A brushed motor with convenient heat dissipation according to claim 5, characterized in that: A water tank (19) is fixedly sleeved on the outer surface of the protective shell (15). An inlet pipe (22) is fixedly sleeved on the left side of the water tank (19), and an outlet pipe (23) is fixedly sleeved on the right side of the water tank (19).

8. A brushed motor with convenient heat dissipation according to claim 7, characterized in that: A connecting pipe (24) is fixedly sleeved inside the back of the water tank (19), and the outer surface of the connecting pipe (24) is fixedly sleeved inside the heat dissipation fins (18).

9. A brushed motor with convenient heat dissipation according to claim 1, characterized in that: The outer surfaces of the left and right sides of the outer shell (1) are fixedly mounted with brackets (20), and the brackets (20) are provided with circular grooves (21).

10. A brushed motor with convenient heat dissipation according to claim 6, characterized in that: The heat dissipation fins (18) are made of copper-aluminum alloy.

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