Snow sweeper starting motor with overload protection device

Abstract

The utility model discloses a snowplow starting motor with an overload protection device. The snowplow starting motor comprises a snowplow motor. The electric overload protection device comprises a box body which is fixed with the surface of one side of a motor of the snow sweeper through screws, and a current overload protector which is arranged in the box body and is electrically connected with the motor of the snow sweeper; the heat dissipation assembly comprises a heat dissipation fin installed in the snow sweeper motor, a stabilizing ring installed on the outer surface of the snow sweeper motor, and a heat conduction column penetrating through the stabilizing ring and the snow sweeper motor and inserted into the heat dissipation fin; the starting motor shell is provided with the heat dissipation design for fast heat dissipation, when the surface temperature of the snow sweeper motor rises, heat is transmitted from the high-temperature area snow sweeper motor to the low-temperature areas of the cooling fins and the heat conduction columns, the cooling fan operates and causes airflow flowing, the flowing airflow drives the heat on the surfaces of the heat conduction columns, and the heat dissipation effect is achieved. The current overload protector protects the motor of the snow sweeper, and when the current of the motor of the snow sweeper exceeds a set value, the current is automatically cut off.

Description

Technical Field

[0001] This utility model belongs to the field of starter motor technology, specifically relating to a snowplow starter motor with an overload protection device. Background Technology

[0002] A snowplow is a device used for snow removal. The engine is the key component of a snowplow, and the starter motor is the key component that provides initial power to the engine. The starter motor converts electrical energy into mechanical energy through the principle of electromagnetic induction, generating strong torque, which drives the crankshaft of the engine to rotate, causing the piston of the engine to start reciprocating motion, thereby completing the working cycle of intake, compression, power, and exhaust, and thus making the snowplow engine run.

[0003] When snow sweepers are used in harsh outdoor working environments or when the motor is running under overload for a long time, the starting motor may overheat, and the surface temperature of the motor may rise significantly, exceeding the normal operating temperature range. This can lead to short circuits in the motor windings or deformation of internal components, affecting the normal operation of the starting motor. The starting motor does not have a design to accelerate heat dissipation, which is a shortcoming.

[0004] Existing snowplow starter motors lack a fast heat dissipation design on the motor housing during use. To address this, this application proposes a snowplow starter motor with an overload protection device. Utility Model Content

[0005] The purpose of this invention is to provide a snowplow starter motor with an overload protection device, so as to solve the problem of the lack of fast heat dissipation design on the starter motor housing mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a snowplow starter motor with an overload protection device, comprising...

[0007] Snowplow motor;

[0008] The electrical overload protection device includes a housing fixed to one side of the snow sweeper motor by screws, and a current overload protector installed inside the housing and electrically connected to the snow sweeper motor.

[0009] The heat dissipation assembly includes a heat sink installed inside the snow sweeper motor, a retaining ring installed on the outer surface of the snow sweeper motor, and a heat-conducting column that passes through the retaining ring and the snow sweeper motor and is inserted into the heat sink.

[0010] The airflow assembly includes a mounting ring fitted on the outside of the stabilizing ring, an air collecting ring fitted on the outside of the snow sweeper motor, an air supply pipe installed between the opposing mounting ring and the air collecting ring, a connecting plate whose two ends are respectively fixed to the mounting ring by screws, an exhaust pipe installed between the air collecting ring and the connecting plate, and a cooling fan fixed to the connecting plate by screws. The inner surface of the mounting ring has through holes corresponding to the heat-conducting columns.

[0011] Preferably, the mounting ring has a groove on its side, and the groove communicates with the through hole.

[0012] Preferably, a split-type barrier net is connected to the mounting ring, the barrier net cooperates with the ring groove, the barrier net has a mesh structure, and the barrier net and the ring groove have the same geometry.

[0013] Preferably, the mounting ring, air supply pipe, air collection ring, exhaust pipe, and cooling fan are connected.

[0014] Preferably, the heat-conducting pillars are evenly distributed on the stabilizing ring, and the distance between the outer surface of the stabilizing ring and the end of the heat-conducting pillar is 2 mm.

[0015] Preferably, the heat sink is welded to the snow sweeper motor, and the retaining ring and heat-conducting column are glued to the snow sweeper motor.

[0016] Preferably, the through hole is a frustum-shaped hole, and the through hole corresponds one-to-one with the heat-conducting column. The through hole includes a wide-diameter end and a narrow-diameter end, and the narrow-diameter end of the through hole corresponds to the heat-conducting column.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the starter motor housing has a fast heat dissipation design. When the surface temperature of the snow sweeper motor rises, heat is transferred from the high-temperature zone of the snow sweeper motor to the low-temperature zone of the heat sink and heat conduction column. The cooling fan runs and creates airflow. The airflow carries away the heat on the surface of the heat conduction column, achieving the heat dissipation effect. In addition, the current overload protector protects the snow sweeper motor. When the snow sweeper motor current exceeds the set value, the current is automatically cut off. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of the stabilizing ring of this utility model;

[0021] Figure 3 This is a cross-sectional view of the mounting ring of this utility model;

[0022] Figure 4This is a three-dimensional structural diagram of the mounting ring of this utility model;

[0023] In the diagram: 1. Snow sweeper motor; 4. Stabilizing ring; 5. Heat conduction column; 11. Heat sink; 21. Housing; 22. Overcurrent protector; 31. Mounting ring; 32. Air supply pipe; 33. Air collection ring; 34. Exhaust pipe; 35. Connecting plate; 36. Cooling fan; 311. Through hole; 312. Ring groove; 313. Barrier net. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4This utility model provides a technical solution: a snowplow starter motor with an overload protection device, including a snowplow motor 1. The structure and principle of the snowplow motor 1 are existing technologies and will not be described in detail here. The electrical overload protection device includes a housing 21 fixed to one side of the snowplow motor 1 by screws, and a current overload protector 22 installed inside the housing 21 and electrically connected to the snowplow motor 1. The structure and principle of the current overload protector 22 are existing technologies, and the current overload protector 22 is electrically connected to the snowplow motor 1 using existing technologies. This application will not describe in detail here. The overload protector 22 protects the snowplow motor 1 from overload. When the current exceeds a set value, it automatically cuts off the current to prevent damage or fire. It provides overload and short-circuit protection for the snowplow motor 1. The heat dissipation assembly includes a heat sink 11 installed inside the snowplow motor 1, a retaining ring 4 installed on the outer surface of the snowplow motor 1, and a heat-conducting column 5 that passes through the retaining ring 4 and the snowplow motor 1 and is inserted into the heat sink 11. The heat-conducting column 5 is made of insulating ceramic material, and the heat sink 11 is made of aluminum alloy. Thermal conductivity: When the surface temperature of the snowplow motor 1 rises, heat is transferred from the high-temperature area to the low-temperature area using the principle of heat conduction. Heat is transferred from the high-temperature area of ​​the snowplow motor 1 to the low-temperature area of ​​the heat sink 11 and the heat-conducting column 5. Airflow components: A mounting ring 31 is fitted outside the stabilizing ring 4; an air collecting ring 33 is fitted outside the snowplow motor 1; an air supply pipe 32 is installed between the opposing mounting ring 31 and air collecting ring 33; a connecting plate 35 is fixed to the mounting ring 31 at both ends by screws; an exhaust pipe 34 is installed between the air collecting ring 33 and the connecting plate 35; and a connection to the connecting plate 35... The cooling fan 36 is fixed by screws. The inner surface of the mounting ring 31 has through holes 311 corresponding to the heat-conducting column 5. When the cooling fan 36 runs, it causes airflow. The external airflow flows along the path of the mounting ring 31, the air supply pipe 32, the air collection ring 33, the exhaust pipe 34, and the cooling fan 36 in sequence, achieving the effect of airflow. The flowing airflow carries away the heat on the surface of the heat-conducting column 5, achieving the effect of heat dissipation. This reduces the surface temperature of the snow sweeper motor 1, preventing its surface temperature from exceeding the normal operating temperature range, which could lead to short circuits in the motor windings or deformation of internal motor components, affecting the normal operation of the starter motor.

[0026] In this embodiment, an annular groove 312 is provided on the side of the mounting ring 31. The annular groove 312 is connected to the through hole 311, and external airflow can enter the annular groove 312. The heat-conducting column 5 is connected to the annular groove 312. With the flow of external airflow, the heat on the surface of the heat-conducting column 5 is carried away.

[0027] In this embodiment, a split-type barrier net 313 is connected to the mounting ring 31. The barrier net 313 cooperates with the ring groove 312. The barrier net 313 has a mesh structure and the geometry of the barrier net 313 and the ring groove 312 are the same. The barrier net 313 plays the role of preventing dust and impurities in the airflow. The mesh count of the barrier net 313 can be designed according to the actual situation.

[0028] In this embodiment, the mounting ring 31, the air supply pipe 32, the air collection ring 33, the exhaust pipe 34, and the cooling fan 36 are connected. The cooling fan 36 runs and causes airflow. The external airflow flows along the path of the mounting ring 31, the air supply pipe 32, the air collection ring 33, the exhaust pipe 34, and the cooling fan 36 in sequence, achieving the effect of airflow and heat dissipation.

[0029] In this embodiment, the heat-conducting pillars 5 are evenly distributed on the stabilizing ring 4. The number of heat-conducting pillars 5 can be designed according to the actual situation. The distance between the outer surface of the stabilizing ring 4 and the end of the heat-conducting pillar 5 is 2 mm. The heat-conducting pillars 5 are blocked by the stabilizing ring 4, and the end of the heat-conducting pillar 5 is not disturbed by other external factors.

[0030] In this embodiment, the heat sink 11 is connected to the snow sweeper motor 1 by welding, and the stabilizing ring 4 and the heat-conducting column 5 are fixed to the snow sweeper motor 1 by adhesive. The through hole 311 is a frustoconical hole, and the through hole 311 corresponds one-to-one with the heat-conducting column 5. The through hole 311 includes a wide diameter end and a narrow diameter end. The narrow diameter end of the through hole 311 corresponds to the heat-conducting column 5. When the cooling fan 36 is running, it achieves the effect of external airflow. The airflow can carry away the heat on the surface of the heat-conducting column 5.

[0031] Working principle and usage process of this utility model:

[0032] When the snow sweeper motor 1 is used in harsh outdoor working environments or under long-term overload conditions, the surface temperature of the motor will rise significantly;

[0033] The heat-conducting column 5 is made of insulating ceramic material, and the heat sink 11 is made of aluminum alloy material, which has thermal conductivity. When the surface temperature of the snow sweeper motor 1 rises, the principle of heat conduction is used, that is, heat is transferred from the high temperature area to the low temperature area. Heat is transferred from the high temperature area of ​​the snow sweeper motor 1 to the low temperature area of ​​the heat sink 11 and the heat-conducting column 5.

[0034] The cooling fan 36 operates and creates airflow. The external airflow flows sequentially along the path of the mounting ring 31, the air supply pipe 32, the air collection ring 33, the exhaust pipe 34, and the cooling fan 36, achieving the effect of airflow and heat dissipation.

[0035] The flowing air carries away the heat on the surface of the heat-conducting column 5, achieving a heat dissipation effect. This reduces the surface temperature of the snow sweeper motor 1, preventing it from exceeding the normal operating temperature range, which could lead to a short circuit in the motor windings or deformation of the internal components, thus affecting the normal operation of the starter motor.

[0036] The overload protector 22 protects the current of the snow sweeper motor 1. When the current of the snow sweeper motor 1 exceeds the set value, it automatically cuts off the current to prevent damage to the snow sweeper motor 1 or fire. It has the functions of preventing overload, short circuit protection and protecting the snow sweeper motor 1.

[0037] In summary: The starter motor housing has a fast heat dissipation design. When the surface temperature of the snow sweeper motor 1 rises, heat is transferred from the high-temperature area of ​​the snow sweeper motor 1 to the low-temperature area of ​​the heat sink 11 and the heat conduction column 5. The cooling fan 36 runs and creates airflow. The airflow carries away the heat on the surface of the heat conduction column 5, achieving the heat dissipation effect. In addition, the overload protector 22 protects the snow sweeper motor 1. When the current of the snow sweeper motor 1 exceeds the set value, the current is automatically cut off.

[0038] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A snowplow starter motor equipped with an overload protection device, characterized in that: include Snowplow motor (1); The electrical overload protection device includes a housing (21) fixed to one side of the snow sweeper motor (1) by screws, and a current overload protector (22) installed inside the housing (21) and electrically connected to the snow sweeper motor (1); The heat dissipation assembly includes a heat sink (11) installed inside the snow sweeper motor (1), a retaining ring (4) installed on the outer surface of the snow sweeper motor (1), and a heat-conducting column (5) that passes through the retaining ring (4) and the snow sweeper motor (1) and is inserted into the heat sink (11). The airflow assembly includes a mounting ring (31) fitted on the outside of the stabilizing ring (4), an air collecting ring (33) fitted on the outside of the snow sweeper motor (1), an air supply pipe (32) installed between the opposing mounting ring (31) and the air collecting ring (33), a connecting plate (35) with both ends fixed to the mounting ring (31) by screws, an exhaust pipe (34) installed between the air collecting ring (33) and the connecting plate (35), and a cooling fan (36) fixed to the connecting plate (35) by screws. The inner surface of the mounting ring (31) is provided with a through hole (311) corresponding to the heat-conducting column (5).

2. A snowplow starter motor with an overload protection device according to claim 1, characterized in that: The mounting ring (31) has an annular groove (312) on its side, and the annular groove (312) communicates with the through hole (311).

3. A snowplow starter motor with an overload protection device according to claim 2, characterized in that: A split-type barrier net (313) is connected to the mounting ring (31). The barrier net (313) cooperates with the ring groove (312). The barrier net (313) has a mesh structure and the geometric shape of the barrier net (313) is the same as that of the ring groove (312).

4. A snowplow starter motor with an overload protection device according to claim 1, characterized in that: The mounting ring (31), air supply pipe (32), air collection ring (33), exhaust pipe (34), and cooling fan (36) are connected.

5. A snowplow starter motor with an overload protection device according to claim 1, characterized in that: The heat-conducting pillars (5) are evenly distributed on the stabilizing ring (4), and the distance between the outer surface of the stabilizing ring (4) and the end of the heat-conducting pillars (5) is 2 mm.

6. A snowplow starter motor with an overload protection device according to claim 1, characterized in that: The heat sink (11) is connected to the snow sweeper motor (1) by welding, and the stabilizing ring (4) and the heat-conducting column (5) are fixed to the snow sweeper motor (1) by adhesive.

7. A snowplow starter motor with an overload protection device according to claim 1, characterized in that: The through hole (311) is a frustoconical hole. The through hole (311) corresponds one-to-one with the heat-conducting column (5). The through hole (311) includes a wide diameter end and a narrow diameter end. The narrow diameter end of the through hole (311) corresponds to the heat-conducting column (5).

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