A direct current motor follow-up type heat dissipation case

Abstract

The application discloses a DC motor follow-up type heat dissipation machine shell, which comprises a DC motor, a protective shell wrapped outside the DC motor, an output shaft of the DC motor extending to the outside of the protective shell, a support disc fixed to the side of the DC motor away from the output shaft, and the support disc fixed to the inside of the protective shell through a support column, and a support installed at the bottom of the protective shell, and further comprising connecting frames installed at the two sides of the outer end of the protective shell. The DC motor follow-up type heat dissipation machine shell has the advantages that the air inlet is used for air inflow, the air outlet is used for air outflow, the dustproof ring is attached to the inner surface of the protective shell to close the air inlet during the non-starting period of the DC motor, meanwhile, the second dustproof net is not aligned with the air outlet, and the baffle closes the air outlet, so that the dust from the outside is prevented from entering the protective shell through the air outlet and the air inlet and adhering to the outer surface of the DC motor during the non-starting period of the DC motor, and the dustproof effect is improved.

Description

Technical Field

[0001] This invention relates to the field of heat dissipation housing technology, specifically a DC motor-driven heat dissipation housing. Background Technology

[0002] A DC motor is a type of rotating electric motor that can convert DC electrical energy into mechanical energy or vice versa. It consists of two main parts: a stator and a rotor. The stator includes the main magnetic poles, commutating poles, frame, and brush assembly, while the rotor includes the armature core, armature windings, commutator, shaft, and fan. This structure enables DC motors to perform energy conversion efficiently.

[0003] DC motors achieve speed regulation by changing the armature voltage or current. During speed regulation, especially when the voltage is reduced or the current is increased, a large amount of heat may be generated inside the motor. This is because the increase in current leads to an increase in power loss on the resistor, thereby generating more heat.

[0004] To prevent DC motors from overheating during operation, a heat dissipation structure can be installed on the outside of the DC motor to cool it down. However, common air cooling systems require airflow in and out, which can lead to dust entering the structure and accumulating on the motor's surface. This dust buildup forms a heat insulation layer, reducing the heat dissipation effect of the external structure. To prevent dust from entering, dust filters are commonly installed at the inlet and outlet of the heat dissipation structure. However, because dust particles vary in size, smaller particles can still pass through the dust filters and enter the heat dissipation structure, eventually adhering to the motor's surface.

[0005] Therefore, in view of the problems in the prior art, a DC motor follow-up heat dissipation housing is proposed. It can dissipate heat from the DC motor and clean the outer surface of the DC motor at the same time, reducing dust adhesion on the outer surface of the motor. Furthermore, when the DC motor is not in operation, the inlet and outlet ports can be sealed to further prevent dust from entering. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a DC motor follow-up heat sink housing, aiming to solve the aforementioned problems.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A DC motor follower-type heat sink housing includes a DC motor, a protective shell surrounding the DC motor, an output shaft of the DC motor extending to the outside of the protective shell, a support plate fixed to the outer end of the DC motor away from its output shaft, the support plate being fixed to the inside of the protective shell via support columns, a bracket mounted on the bottom of the protective shell, and further includes:

[0009] Connecting frames are installed on both sides of the outer end of the protective shell. A brush is provided on the side of the connecting frame closer to the DC motor. A transmission sleeve is movably connected to the outside of the support column. Several fan blades are evenly arranged on the outside of the transmission sleeve. An air inlet is opened at the end of the protective shell away from the output shaft of the DC motor. An exhaust port is opened on both sides of the outer end of the protective shell. A dustproof ring is fixed at the end of the transmission sleeve away from the output shaft of the DC motor.

[0010] A rotating head is movably connected to the outer side of the DC motor output shaft. A connecting ring is provided on the outer side of the rotating head. Baffles are fixed at the outer ends of the connecting ring corresponding to the exhaust port. The baffles are slidably connected to the shell interlayer of the protective shell. A second dustproof net is provided at one end of the inner side of the baffle.

[0011] When the DC motor is not running, the dustproof ring is in contact with the inner surface of the protective shell, sealing the air inlet. At the same time, the second dustproof net is not aligned with the exhaust port, and the baffle seals the exhaust port, preventing external dust from entering the protective shell from the exhaust port and air inlet when the DC motor is not running. After the DC motor starts, the rotation of the DC motor output shaft drives the rotating head to rotate, which in turn drives the connecting frame to rotate. Simultaneously, the connecting frame drives the transmission sleeve to rotate, and the connecting frame drives the connecting ring to translate. This causes the dustproof ring to translate and no longer seal the air inlet. The baffle slides and translates within the shell interlayer of the protective shell, thereby aligning the second dustproof net with the exhaust port.

[0012] Preferably, the air inlet is surrounded on the outside of the support column, and a first dustproof net is installed inside the air inlet.

[0013] Preferably, the transmission sleeve is fixed to one end of the connecting frame, and the other end of the connecting frame is fixed to the rotating head via a connecting rod;

[0014] The connecting rod is rotatably connected to the inner part of the connecting ring via a protrusion at its outer end.

[0015] Preferably, three connecting brackets are provided on the outer side of the end of the transmission sleeve near the air inlet. The three connecting brackets are connected to the transmission sleeve through connecting rings. The connecting rings are rotatably connected to the inner wall of the transmission sleeve. Each connecting bracket is connected to the protective shell through a hydraulic telescopic rod.

[0016] Preferably, a plurality of insert blocks are evenly arranged on the side of the rotating head away from the DC motor, and a sliding groove is opened inside the rotating head corresponding to each insert block. The insert block is slidably connected to the inside of the sliding groove, and a return spring is installed inside the sliding groove to press the insert block against the groove.

[0017] Preferably, a drive head is provided at the outer end of the rotating head away from the DC motor. The drive head is fixed to the outer end of the DC motor output shaft. The drive head has slots evenly distributed on the side near the rotating head, with the same number of slots as the insert blocks.

[0018] Preferably, a mobile phone compartment is installed on the lower side of the protective shell, and docking pieces are fixed on both sides of the outer end of the mobile phone compartment.

[0019] Preferably, the brush is in contact with the outer surface of the DC motor.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention provides a DC motor follow-up heat sink housing, which allows airflow to enter through an air inlet and airflow to exit through an air outlet. When the DC motor is not running, the dustproof ring is attached to the inner surface of the protective housing to seal the air inlet. At the same time, the second dustproof net is not aligned with the exhaust outlet, and the baffle seals the exhaust outlet, preventing external dust from entering the protective housing from the exhaust outlet and air inlet when the DC motor is not running and adhering to the outer surface of the DC motor, thereby improving the dustproof effect.

[0022] When the DC motor is operating, the hydraulic telescopic rods corresponding to the three connecting brackets extend simultaneously, causing the connecting brackets to drive the transmission sleeve to move horizontally via the connecting ring. At this time, the rotating head moves horizontally towards the drive head. Through the insertion of the plug and the slot, the rotating head can be driven to rotate when the DC motor output shaft rotates. At this time, the rotating head drives the connecting bracket to rotate via the connecting rod, and the connecting bracket drives the transmission sleeve to rotate. This allows the brush to clean the dust on the outer surface of the DC motor, and the fan blades to rotate to provide air cooling for the DC motor. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0025] Figure 3 This is a cross-sectional structural diagram of the protective shell of the present invention;

[0026] Figure 4 This is a schematic diagram of the overall structure of the connecting frame of the present invention;

[0027] Figure 5 This is a schematic diagram of the overall structure of the connecting ring of the present invention;

[0028] Figure 6 This is a schematic diagram of the overall structure of the mobile phone compartment of the present invention;

[0029] Figure 7 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 8 For the present invention Figure 2 Enlarged structural diagram at point B.

[0031] In the diagram: 1. Protective shell; 10. Baffle; 11. Bracket; 12. Air inlet; 13. Exhaust outlet; 14. Connecting ring; 15. First dustproof net; 101. Second dustproof net; 2. Support plate; 21. Support column; 3. Connecting frame; 31. Brush; 32. Connecting rod; 4. Transmission sleeve; 41. Fan blade; 5. Connecting frame; 51. Connecting ring; 52. Hydraulic telescopic rod; 6. Dustproof ring; 7. Rotating head; 70. Slide groove; 71. Insert block; 72. Return spring; 8. Drive head; 81. Slot; 9. Mobile phone compartment; 91. Connecting piece. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] A DC motor follower-type heat sink housing, such as Figure 1 and Figure 2 The device includes a DC motor, which is encased in a protective shell 1. A bracket 11 is mounted on the bottom of the protective shell 1, and a fixing plate is mounted on the bottom of the bracket 11. The fixing plate has pre-drilled threaded holes so that bolts can be used to fix the fixing plate through the threaded holes. The heat sink housing is then installed on the required equipment. The output shaft of the DC motor extends to the outside of the protective shell 1, and a support plate 2 is fixed to the side of the DC motor away from its output shaft. The support plate 2 is fixed to the inside of the protective shell 1 by a support column 21 to support one side of the DC motor.

[0034] In this embodiment, as Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8Connecting brackets 3 are installed on both sides of the outer end of the protective shell 1. A brush 31 is provided on the side of the connecting bracket 3 near the DC motor. The brush 31 is in contact with the outer surface of the DC motor. A transmission sleeve 4 is movably connected to the outer side of the support column 21. The transmission sleeve 4 can slide or rotate on the outer side of the support column 21. Several fan blades 41 are evenly arranged on the outer side of the transmission sleeve 4. The transmission sleeve 4 is fixed to one end of the connecting bracket 3. When the two connecting brackets 3 rotate around the axis of the DC motor, the rotation of the fan blades 41 can provide air cooling for the DC motor. At the same time, the connecting bracket 3 cleans the dust on the outer surface of the DC motor through the brush 31, so as to avoid excessive dust on the outer surface of the DC motor. The heat dissipation and dust removal functions can be carried out simultaneously.

[0035] An air inlet 12 is provided at the end of the protective shell 1 away from the output shaft of the DC motor. The air inlet 12 surrounds the outside of the support column 21. When the fan blade 41 rotates, airflow can be introduced through the air inlet 12. A first dustproof net 15 is installed inside the air inlet 12. When the airflow passes through the air inlet 12, the first dustproof net 15 can intercept dust and reduce the amount of dust entering the protective shell 1. An exhaust port 13 is provided on both sides of the outer end of the protective shell 1. The airflow inside the protective shell 1 is discharged through the exhaust port 13. At the same time, a dustproof ring 6 is fixed at the end of the transmission sleeve 4 away from the output shaft of the DC motor. When the DC motor is not in use, the air inlet 12 can be sealed by the dustproof ring 6. At this time, the dustproof ring 6 is in contact with the inner surface of the protective shell 1 to prevent external dust from entering the protective shell 1 from the air inlet 12.

[0036] A rotating head 7 is movably connected to the outside of the DC motor output shaft. The rotating head 7 can slide or rotate on the outside of the DC motor output shaft. The other end of the connecting frame 3 is fixed to the rotating head 7 via a connecting rod 32, so that the rotation of the rotating head 7 can drive the two connecting frames 3 to rotate simultaneously. A connecting ring 14 is provided on the outside of the rotating head 7. Baffles 10 are fixed at the outer ends of the connecting ring 14 corresponding to the exhaust port 13. The baffles 10 can seal the exhaust port 13 to prevent external dust from entering the interior of the protective shell 1 from the exhaust port 13 when the DC motor is not in use.

[0037] Specifically, the baffle 10 is slidably connected to the shell interlayer of the protective shell 1, so that the connecting ring 14 can be slidably connected to the protective shell 1 through the baffle 10. At the same time, the movement of the baffle 10 can be limited, so that the connecting ring 14 can only be translated inside the protective shell 1 and cannot be rotated. A second dustproof net 101 is provided at one end of the inside of the baffle 10. When the connecting ring 14 is translated, the second dustproof net 101 is aligned with the exhaust port 13, and the airflow inside the protective shell 1 can be discharged from the exhaust port 13.

[0038] The connecting rod 32 can be rotatably connected to the inner part of the connecting ring 14 through the protrusion at its outer end, so that the two connecting frames 3 can rotate about the axis of the connecting ring 14 through the connecting rod 32, and can drive the connecting ring 14 to translate when the connecting frame 3 translates.

[0039] Furthermore, such as Figure 4 and Figure 8 Three connecting frames 5 are provided on the outer side of the transmission sleeve 4 near the air inlet 12. The three connecting frames 5 are connected to the transmission sleeve 4 through connecting rings 51. The connecting rings 51 are rotatably connected to the outer wall of the transmission sleeve 4, so that the translation of the connecting frame 5 does not affect the rotation of the transmission sleeve 4. Each connecting frame 5 is connected to the protective shell 1 through a hydraulic telescopic rod 52. The hydraulic telescopic rod 52 is fixed inside the protective shell 1, and the output end of the hydraulic telescopic rod 52 is fixed to the connecting frame 5. When the hydraulic telescopic rod 52 extends or retracts, it can drive the transmission sleeve 4 to translate on the outside of the support column 21 through the connecting frame 5, thereby causing the two connecting frames 3 to translate.

[0040] Furthermore, such as Figure 5 and Figure 7 A drive head 8 is provided on the outer side of the rotating head 7 away from the DC motor. The drive head 8 is fixed to the outer end of the DC motor output shaft. A number of insertion blocks 71 are evenly arranged on the side of the rotating head 7 away from the DC motor. At the same time, the drive head 8 is evenly provided with the same number of slots 81 as the insertion blocks 71 on the side of the drive head 8 close to the rotating head 7. This allows the rotating head 7 to be inserted into the slots 81 of the drive head 8 through the insertion blocks 71. When the output shaft of the DC motor rotates, it can drive the rotating head 7 to rotate. In turn, the rotating head 7 drives the two connecting frames 3 to rotate through the connecting rod 32. At this time, the transmission sleeve 4 drives the fan blade 41 to rotate.

[0041] In a further embodiment, such as Figure 5 and Figure 7 The rotating head 7 has a groove 70 inside corresponding to each plug 71. The plug 71 is slidably connected inside the groove 70, and a return spring 72 is installed inside the groove 70. The return spring 72 presses the plug 71 against the groove. The elastic force of the return spring 72 can push the plug 71 to slide outward from the rotating head 7. After the plug 71 is disengaged from the slot 81, the output shaft of the DC motor may continue to rotate, which may make it difficult to align the position between the plug 71 and the slot 81 next time. When the rotating head 7 moves close to the drive head 8 for translation, when the plug 71 is in contact with the surface of the drive head 8 but not inserted into the slot 81, the plug 71 will slide and retract into the groove 70 under the pressure of the drive head 8. When the slot 81 and the plug 71 are aligned, the drive head 8 no longer presses the plug 71. At this time, the elastic force of the return spring 72 can push the plug 71 to slide outward, thereby allowing the plug 71 to be inserted into the slot 81.

[0042] In another embodiment, such as Figure 1 , Figure 3 and Figure 6 A phone compartment 9 is installed on the lower side of the protective case 1. The phone compartment 9 can be used to collect the dust that falls out after cleaning the inside of the protective case 1. The two outer sides of the phone compartment 9 are respectively fixed with mating pieces 91. The mating pieces 91 can be connected and fixed to the protective case 1 with bolts to facilitate the installation and fixing of the phone compartment 9 to the protective case 1, or to remove the phone compartment 9 from the protective case 1 to clean the dust collected inside the phone compartment 9.

[0043] Working principle: When the DC motor is not started, the dustproof ring 6 is in contact with the inner surface of the protective shell 1 to seal the air inlet 12. At the same time, the second dustproof net 101 is not aligned with the exhaust port 13, and the baffle 10 seals the exhaust port 13, preventing external dust from entering the protective shell 1 from the exhaust port 13 and the air inlet 12 when the DC motor is not started, and adhering to the outer surface of the DC motor, thus improving the dustproof effect.

[0044] After the DC motor starts, the hydraulic telescopic rods 52 corresponding to the three connecting frames 5 extend simultaneously, thereby causing the connecting frame 5 to drive the transmission sleeve 4 to move horizontally through the connecting ring 51. At this time, the rotating head 7 moves horizontally towards the side closer to the drive head 8, and the insert 71 contacts the outer surface of the drive head 8. The DC motor drives its output shaft to rotate the drive head 8. When the insert 71 is aligned with the slot 81, the insert 71 can automatically insert into the slot 81. The rotation of the DC motor output shaft drives the rotating head 7 to rotate. At this time, the rotating head 7 drives the connecting frame 3 to rotate through the connecting rod 32. At the same time, the connecting frame 3 drives the transmission sleeve 4 to rotate, so that the brush 31 cleans the dust on the outer surface of the DC motor, and the fan blades 41 rotate to perform air cooling heat dissipation of the DC motor simultaneously.

[0045] During the extension of the hydraulic telescopic rod 52, the connecting frame 5 drives the transmission sleeve 4 to move horizontally, and the connecting frame 3 drives the connecting ring 14 to move horizontally through the connecting rod 32, so that the dustproof ring 6 moves horizontally and no longer closes the air inlet 12. The baffle 10 slides horizontally within the shell interlayer of the protective shell 1, thereby aligning the second dustproof net 101 with the exhaust port 13. At this time, the airflow can enter the protective shell 1 from the air inlet 12, and the airflow inside the protective shell 1 can be discharged from the exhaust port 13.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Although embodiments of the invention have been shown and described, 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A DC motor follower-type heat sink housing, comprising a DC motor, a protective shell (1) covering the outside of the DC motor, an output shaft of the DC motor extending to the outside of the protective shell (1), a support plate (2) fixed to the outer end of the DC motor away from its output shaft, the support plate (2) being fixed to the inside of the protective shell (1) by a support column (21), and a bracket (11) installed at the bottom of the protective shell (1), characterized in that, Also includes: Connecting frames (3) are installed on both sides of the outer end of the protective shell (1). A brush (31) is provided on the side of the connecting frame (3) near the DC motor. A transmission sleeve (4) is movably connected to the outside of the support column (21). Several fan blades (41) are evenly arranged on the outside of the transmission sleeve (4). An air inlet (12) is opened at the end of the protective shell (1) away from the output shaft of the DC motor. An exhaust port (13) is opened on both sides of the outer end of the protective shell (1). A dustproof ring (6) is fixed at the end of the transmission sleeve (4) away from the output shaft of the DC motor. A rotating head (7) is movably connected to the outside of the output shaft of the DC motor. A connecting ring (14) is provided on the outside of the rotating head (7). Baffles (10) are fixed at the outer ends of the connecting ring (14) and the corresponding positions of the exhaust port (13). The baffles (10) are slidably connected to the shell interlayer of the protective shell (1). A second dustproof net (101) is provided at one end of the inside of the baffles (10). When the DC motor is not started, the dustproof ring (6) is attached to the inner surface of the protective shell (1) to seal the air inlet (12). At the same time, the second dustproof net (101) is not aligned with the exhaust port (13). The baffle (10) seals the exhaust port (13) to prevent external dust from entering the protective shell (1) from the exhaust port (13) and the air inlet (12) when the DC motor is not started. After the DC motor is started, the rotation of the DC motor output shaft drives the rotating head (7) to rotate. The rotating head (7) drives the connecting frame (3) to rotate. At the same time, the connecting frame (3) drives the transmission sleeve (4) to rotate. The connecting frame (3) drives the connecting ring (14) to translate, so that the dustproof ring (6) translates and no longer seals the air inlet (12). The baffle (10) slides and translates in the shell interlayer of the protective shell (1), thereby aligning the second dustproof net (101) with the exhaust port (13).

2. The DC motor follower-type heat sink housing according to claim 1, characterized in that, The air inlet (12) surrounds the outside of the support column (21), and a first dustproof net (15) is installed inside the air inlet (12).

3. The DC motor follower-type heat sink housing according to claim 1, characterized in that, The transmission sleeve (4) is fixed to one end of the connecting frame (3), and the other end of the connecting frame (3) is fixed to the rotating head (7) through the connecting rod (32); The connecting rod (32) is rotatably connected to the connecting ring (14) through the protrusion at its outer end.

4. The DC motor follower-type heat sink housing according to claim 1, characterized in that, Three connecting frames (5) are provided on the outer side of the end of the transmission sleeve (4) near the air inlet (12). The three connecting frames (5) are connected to the transmission sleeve (4) through connecting rings (51). The connecting rings (51) are rotatably connected to the outer wall of the transmission sleeve (4). Each connecting frame (5) is connected to the protective shell (1) through a hydraulic telescopic rod (52).

5. The DC motor follower-type heat sink housing according to claim 1, characterized in that, The rotating head (7) has a number of plugs (71) evenly arranged on the side away from the DC motor. The interior of the rotating head (7) is provided with a groove (70) corresponding to each plug (71). The plug (71) is slidably connected to the interior of the groove (70). A reset spring (72) is installed inside the groove (70). The reset spring (72) presses the plug (71) against the groove.

6. The DC motor follower-type heat sink housing according to claim 5, characterized in that, A drive head (8) is provided on the outer side of the rotating head (7) away from the DC motor. The drive head (8) is fixed to the outer end of the DC motor output shaft. The drive head (8) has slots (81) of the same number as the insert block (71) evenly distributed on the side of the drive head (8) close to the rotating head (7).

7. The DC motor follower-type heat sink housing according to claim 1, characterized in that, The protective shell (1) has a mobile phone compartment (9) installed on its lower side, and the two outer ends of the mobile phone compartment (9) are respectively fixed with docking pieces (91).

8. A DC motor follower-type heat sink housing according to claim 1, characterized in that, The brush (31) is attached to the outer surface of the DC motor.

Images