Miniature special motor heat dissipation end cover

Abstract

The utility model discloses a heat dissipation end cover of a miniature special motor, relates to the technical field of miniature special motors, and aims to solve the problems that airflow is easy to be disordered in the positions of an air exhaust channel and an air inlet channel of a fan in the working process of the fan due to the fact that no sealing structure is arranged between the air exhaust channel and the air inlet channel of the existing fan. The heat dissipation device comprises an end cover assembly with a heat dissipation assembly detachably arranged on one side, the heat dissipation assembly comprises a connecting assembly with a heat dissipation part detachably installed on one side, and the connecting assembly comprises a connecting cover with an annular sealing groove formed in the outer edge of one end; the end cover assembly comprises an end cover shell, a rear shell is coaxially arranged on one side of the end cover shell, and a sealing part which abuts against the interior of the annular sealing groove in a matched mode to form a sealing structure is fixedly arranged on the face, away from the end cover shell, of the rear shell. The utility model has the advantage of reducing the confusion degree of air at the air exhaust position and the air inlet position.

Description

Technical Field

[0001] The utility model relates to the technical field of micro special motors, and more specifically to a heat dissipation end cover of a micro special motor. Background Art

[0002] Micro special motors refer to motors with a diameter less than 160mm or a rated power less than a certain value (such as 750W), or motors with special performance or special uses. There are many types of micro motors, which can be roughly divided into 13 categories: DC motors, AC motors, automatic angle motors, stepper motors, resolvers, shaft angle encoders, AC / DC dual-purpose motors, tachometer generators, induction synchronizers, linear motors, piezoelectric motors, motor units, and other special motors.

[0003] At present, the main characteristics of micro motors are small size, special performance and uses. Due to the small body of this type of motor, the internal structure is arranged relatively tightly. In order to ensure the long-term and effective operation of the motor during use, heat dissipation structures such as fans and heat dissipation holes are usually set at the end cover of the motor. In actual use, there is no sealing structure between the exhaust channel and the air inlet channel of the fan. This leads to irregular airflow during the operation of the fan, which easily causes confusion in the exhaust channel and the air inlet channel of the fan, thereby affecting the heat dissipation effect of the fan. In view of this, we propose a heat dissipation end cover for a micro special motor. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a micro special motor heat dissipation end cover to solve the technical problem that no sealing structure is provided between the exhaust channel and the air inlet channel of the current existing fan, which leads to the air flow being easily confused at the exhaust channel and the air inlet channel of the fan during operation, thereby affecting the heat dissipation effect of the fan.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a micro-special motor heat dissipation end cover, comprising an end cover component with a heat dissipation component detachably provided on one side;

[0006] The heat dissipation assembly includes a connection assembly with a heat dissipation component detachably mounted on one side;

[0007] The connecting assembly comprises a connecting cover with an annular sealing groove formed at the outer edge of one end;

[0008] The end cover assembly comprises an end cover housing with a rear housing coaxially arranged on one side, and a sealing component adapted to abut against the inside of an annular sealing groove to form a sealing structure is fixedly arranged on a side of the rear housing away from the end cover housing;

[0009] The sealing component comprises a rubber sealing ring with one end forked and elastic overlapping parts formed upward and downward respectively. The elastic overlapping part is C-shaped in the cross-sectional direction, and the elastic overlapping part can be detachably abutted in the annular sealing groove to achieve a sealing effect.

[0010] The utility model designs a sealing component and designs the end cover assembly and the heat dissipation assembly as a detachable installation mode, so that passive heat dissipation and active heat dissipation can be selected according to the working scene of the micro motor. The detachable installation of the end cover assembly and the heat dissipation assembly facilitates rapid switching between the two modes. In the active heat dissipation process, the sealing effect is achieved by the abutment of the rubber sealing ring and the annular sealing groove, which is conducive to reducing the degree of chaos of the gas at the exhaust position and the air inlet position, so that the airflow can smoothly enter the interior of the micro motor and carry heat out, which is conducive to improving the heat dissipation effect, and by forking one end of the rubber sealing ring upward and downward to form an elastic overlapping portion, the C-shaped structure of the elastic overlapping portion in the cross-sectional direction will be deformed when it abuts against the annular sealing groove, so that the inner side surface of the elastic overlapping portion fits with the surface of the rubber sealing ring, thereby further improving the sealing effect.

[0011] Preferably, rubber convex rings are formed equidistantly on the outer surface and the inner surface of the rubber sealing ring at one end facing the elastic overlapping portion, and the rubber convex rings are in a semicircular structure in the cross-sectional direction.

[0012] Preferably, magnetic suction plug shafts are fixedly provided in an annular array on one side of the connection cover, and magnetic suction plug holes adapted for plugging in the magnetic suction plug shafts are provided in an annular array inside the rear shell.

[0013] Preferably, the heat dissipation component comprises a fan bracket detachably arranged on one side of the connection cover, an exhaust fan is rotatably mounted inside the fan bracket, and a flow channel hole is coaxially opened in the middle of the connection cover.

[0014] Preferably, an air intake duct is formed between the outer surface of the rear shell and one side of the end cover shell, and a plurality of oblique air guide vanes for dividing the air intake duct into oblique guide flow channels are arranged in a circular array in the air intake duct, and the two ends of the oblique air guide vanes are respectively connected to the end cover shell and the rear shell as an integral structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model designs a sealing component and designs the end cover assembly and the heat dissipation assembly as a detachable installation mode, so that passive heat dissipation and active heat dissipation can be selected according to the working scene of the micro motor. The detachable installation of the end cover assembly and the heat dissipation assembly facilitates rapid switching between the two modes. In the active heat dissipation process, the sealing effect is achieved by the abutment of the rubber sealing ring and the annular sealing groove, which is conducive to reducing the degree of chaos of the gas at the exhaust position and the air inlet position, so that the airflow smoothly enters the interior of the micro motor and carries the heat out, which is conducive to improving the heat dissipation effect. In addition, by forking one end of the rubber sealing ring upward and downward to form an elastic overlapping part, the C-shaped structure of the elastic overlapping part in the cross-sectional direction will be deformed when it abuts against the annular sealing groove, so that the inner side of the elastic overlapping part fits with the surface of the rubber sealing ring, thereby further improving the sealing effect, and solving the problem that there is no sealing structure between the exhaust channel and the air inlet channel of the existing fan, which leads to the problem that the airflow is easily chaotic at the exhaust channel and the air inlet channel of the fan during operation, affecting the heat dissipation effect of the fan.

[0017] 2. The utility model also forms rubber convex rings equidistantly on the outer surface and the inner surface of the rubber sealing ring toward one end of the elastic overlapping part. When the elastic overlapping part is deformed under pressure to fit the rubber sealing ring, the rubber convex ring will generate pressure on the elastic overlapping part, thereby making the elastic overlapping part fit more closely with the inner wall of the annular sealing groove, thereby further improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the disassembly of the end cover assembly and the heat dissipation assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the heat dissipation component of the utility model;

[0021] Figure 4 This is a schematic diagram of the disassembly of the heat dissipation component of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the sealing component of the utility model;

[0023] Figure 6 For this utility model Figure 5 A magnified schematic diagram of the structure in the middle.

[0024] Description of the numbers in the figure:

[0025] 1. End cover assembly; 101. End cover shell; 102. Rear shell; 103. Air intake duct; 104. Oblique air guide vane; 2. Sealing component; 201. Rubber sealing ring; 202. Elastic overlapping part; 203. Rubber convex ring; 3. Heat dissipation component; 4. Connection component; 401. Connection cover; 402. Magnetic plug shaft; 403. Annular sealing groove; 5. Heat dissipation component; 501. Fan bracket; 502. Exhaust fan. DETAILED DESCRIPTION

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, the utility model relates to a micro special motor heat dissipation end cover, including an end cover assembly 1 with a heat dissipation component 3 detachably provided on one side, the heat dissipation component 3 includes a connection assembly 4 with a heat dissipation component 5 detachably installed on one side, the connection assembly 4 includes a connection cover 401 with an annular sealing groove 403 formed at the outer edge position of one end, the end cover assembly 1 includes an end cover shell 101 with a rear shell 102 coaxially provided on one side, a sealing component 2 adapted to abut against the inside of the annular sealing groove 403 to form a sealing structure is fixedly provided on a side of the rear shell 102 away from the end cover shell 101, the sealing component 2 includes a rubber sealing ring 201 with one end forked to form an elastic overlapping portion 202 upward and downward respectively, the elastic overlapping portion 202 is a C-shaped structure in the cross-sectional direction, and the elastic overlapping portion 202 can be detachably abutted against the annular sealing groove 403 to achieve a sealing effect.

[0027] In the embodiments of the present invention, Figure 2-Figure 6 As shown, the outer surface and the inner surface of the rubber sealing ring 201 facing one end of the elastic overlapping portion 202 are equidistantly formed with rubber convex rings 203, and the rubber convex rings 203 are semicircular in the cross-sectional direction. A magnetic suction plug shaft 402 is fixedly provided in an annular array on one side of the connecting cover 401, and the interior of the rear shell 102 is provided with magnetic suction sockets adapted for the magnetic suction plug shaft 402 to be plugged in in an annular array.

[0028] In the embodiments of the present invention, Figure 2-Figure 4 As shown, the heat dissipation component 5 includes a fan bracket 501 detachably arranged on one side of the connecting cover 401, an exhaust fan 502 is rotatably installed inside the fan bracket 501, a flow channel hole is coaxially opened in the middle of the connecting cover 401, an air intake duct 103 is formed between the outer surface of the rear shell 102 and one side of the end cover shell 101, and a plurality of oblique air guide blades 104 for dividing the air intake duct 103 into oblique guide flow channels are arranged in a circular array in the air intake duct 103, and both ends of the oblique air guide blades 104 are respectively connected to the end cover shell 101 and the rear shell 102 as an integral structure.

[0029] Working principle: This embodiment provides a micro-special motor heat dissipation end cover. When in use, the magnetic suction plug shaft 402 can be inserted into the corresponding magnetic suction plug hole, and the rubber sealing ring 201 carrying the elastic overlapping part 202 is pressed into the annular sealing groove 403. The sealing effect is achieved by the abutment between the rubber sealing ring 201 and the annular sealing groove 403. The C-shaped structure of the elastic overlapping part 202 in the cross-sectional direction will be deformed when it abuts against the annular sealing groove 403, so that the inner side of the elastic overlapping part 202 fits with the surface of the rubber sealing ring 201, thereby further improving the sealing effect. When the elastic overlapping part 202 is compressed and deformed to fit the rubber sealing ring 201, the rubber convex ring 203 will press the elastic overlapping part The joint part 202 generates pressure, so that the elastic overlapping part 202 and the inner wall of the annular sealing groove 403 are more closely fitted. After the heat dissipation component 3 and the end cover component 1 are installed, the rotation of the exhaust fan 502 drives the external air to pass through the oblique guide flow channel formed between the oblique air guide blades 104 into the interior of the micro motor, and carries the heat inside the micro motor to be discharged through the rotation of the exhaust fan 502, thereby realizing the heat dissipation of the inside of the micro motor. By obliquely setting the oblique air guide blades 104, it is beneficial to cooperate with the spiral airflow generated by the rotation of the exhaust fan 502 to guide the rapid entry of external air, thereby facilitating the continuity and regularity of the airflow entering and discharging, thereby improving the heat dissipation effect.

[0030] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A micro special motor heat dissipation end cover, characterized in that: It comprises an end cover assembly (1) with a heat dissipation assembly (3) detachably provided on one side; The heat dissipation assembly (3) comprises a connection assembly (4) on one side of which a heat dissipation component (5) is detachably mounted; The connection assembly (4) comprises a connection cover (401) having an annular sealing groove (403) formed at an outer edge of one end; The end cover assembly (1) comprises an end cover housing (101) with a rear housing (102) coaxially arranged on one side, and a sealing component (2) adapted to abut against the inside of an annular sealing groove (403) to form a sealing structure is fixedly arranged on a side of the rear housing (102) away from the end cover housing (101); The sealing component (2) comprises a rubber sealing ring (201) having one end forked upward and downward to form elastic overlapping parts (202), the elastic overlapping parts (202) being in a C-shaped structure in the cross-sectional direction, and the elastic overlapping parts (202) are detachably abutted in the annular sealing groove (403) to achieve a sealing effect.

2. A micro-special motor heat dissipation end cover according to claim 1, characterized in that: The outer surface and the inner surface of the rubber sealing ring (201) are equidistantly formed with rubber convex rings (203) at one end facing the elastic overlapping portion (202), and the rubber convex ring (203) is in a semicircular structure in the cross-sectional direction.

3. The heat dissipation end cover of a micro-special motor according to claim 1, characterized in that: One side of the connection cover (401) is fixedly provided with magnetic insertion shafts (402) in an annular array, and the interior of the rear housing (102) is provided with magnetic insertion holes adapted to be plugged into the magnetic insertion shafts (402) in an annular array.

4. The heat dissipation end cover of a micro-special motor according to claim 1, characterized in that: The heat dissipation component (5) comprises a fan bracket (501) detachably arranged on one side of the connection cover (401), an exhaust fan (502) is rotatably mounted inside the fan bracket (501), and a flow channel hole is coaxially formed in the middle of the connection cover (401).

5. The heat dissipation end cover of a micro-special motor according to claim 1, characterized in that: An air intake duct (103) is formed between the outer surface of the rear shell (102) and one side of the end cover shell (101), and a plurality of oblique air guide vanes (104) for dividing the air intake duct (103) into oblique guide flow channels are arranged in a ring array in the air intake duct (103), and the two ends of the oblique air guide vanes (104) are respectively connected to the end cover shell (101) and the rear shell (102) in an integral structure.

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