Direct current motor follow-up heat dissipation casing

Abstract

The invention discloses a direct-current motor follow-up heat dissipation machine shell which comprises a direct-current motor, the direct-current motor is wrapped with a protective shell, an output shaft of the direct-current motor extends to the outer side of the protective shell, a supporting disc is fixed to the side, away from the output shaft of the direct-current motor, of the outer end of the direct-current motor, and the supporting disc is fixed to the interior of the protective shell through a supporting column. A support is installed at the bottom of the protective shell, and connecting frames are installed on the two sides of the outer end of the protective shell respectively. According to the direct-current motor follow-up heat dissipation machine shell, airflow enters through the air inlet, airflow is exhausted through the exhaust port, when the direct-current motor is not started, the dust isolation ring is attached to the inner surface of the protection shell, the air inlet is closed, meanwhile, the second dust screen is not aligned with the exhaust port, the exhaust port is closed through the blocking piece, and the direct-current motor is not started. When the direct-current motor is not started, external dust is prevented from entering the protective shell from the exhaust port and the air inlet and being attached to the outer surface of the direct-current motor, and the dustproof effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation casings, in particular to a DC motor follower heat dissipation casing. Background Art

[0002] A DC motor is a rotating electrical machine that can convert DC electrical energy into mechanical energy or vice versa. It consists of two major parts: the stator and the rotor. The stator includes the main magnetic poles, commutator poles, frame and brush device; the rotor includes the armature core, armature winding, commutator, shaft and fan and other components. This structure enables the DC motor to convert energy efficiently.

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

[0004] In order to avoid the problem of thermal overload of the DC motor during operation, a heat dissipation structure can be installed on the outside of the DC motor to cool and dissipate the heat of the DC motor. The commonly used air cooling heat dissipation usually requires opening inlet and exhaust ports due to the characteristics of air flow in and out, but frequent air flow can easily cause external dust to enter the interior of the structure, causing dust accumulation on the outer surface of the DC motor. The dust accumulated on the outer surface of the DC motor will form a layer of insulation, which will reduce the heat dissipation effect of the external structure. In order to prevent the entry of dust, dust nets are installed at the inlet and exhaust ports of the heat dissipation structure as one of the commonly used technical means. However, since dust particles vary in size, smaller dust particles can still pass through the dust net and enter the interior of the heat dissipation structure, thereby adhering to the outer surface of the DC motor.

[0005] Therefore, in order to solve the problems in the above-mentioned prior art, a DC motor follow-up heat dissipation casing is proposed, which can not only dissipate heat for the DC motor but also clean the outer surface of the DC motor to reduce the adhesion of dust on the outer surface of the motor. Moreover, when the DC motor is not in operation, the inlet and exhaust ports can be closed to further prevent the entry of dust. Summary of the Invention

[0006] In view of the deficiencies in the prior art, the present invention provides a DC motor follower heat dissipation housing, the purpose of which is to solve the above problems.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A DC motor follower heat dissipation housing includes a DC motor, a protective housing wrapped around the DC motor, an output shaft of the DC motor extending outside the protective housing, a support plate fixed to the outer end of the DC motor away from the output shaft, the support plate fixed to the interior of the protective housing via a support column, a bracket mounted on the bottom of the protective housing, and further includes:

[0009] Connecting frames are respectively installed on both sides of the outer end of the protective shell, and a brush is provided on the side of the connecting frame close to the DC motor. A transmission sleeve is movably connected to the outer side of the support column, and a plurality of fan blades are evenly arranged on the outer side of the transmission sleeve. An air inlet is provided on the end of the protective shell away from the output shaft of the DC motor, and exhaust ports are respectively provided on both sides of the outer end of the protective shell. A dust ring is fixed to the end of the transmission sleeve away from the output shaft of the DC motor;

[0010] The outer side of the output shaft of the DC motor is movably connected with a rotating head, the outer side of the rotating head is provided with a connecting ring, and the outer sides of both ends of the connecting ring are respectively fixed with blocking pieces at positions corresponding to the exhaust port.

[0011] Preferably, the air inlet surrounds the outside of the support column, and a first dustproof net is installed inside the air inlet.

[0012] 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;

[0013] The connecting rod can be rotatably connected to the interior of the connecting ring through a protrusion at the outer end.

[0014] Preferably, the baffle is slidably connected to the shell interlayer of the protective shell, and a second dustproof net is provided at one inner end of the baffle.

[0015] Preferably, three connecting frames are provided on the outer side of one end of the transmission sleeve close to the air inlet, and the three connecting frames are connected to the transmission sleeve through connecting rings. The connecting rings are rotatably connected to the outer wall of the transmission sleeve, and each of the connecting frames is connected to the protective shell through a hydraulic telescopic rod.

[0016] Preferably, a plurality of plug 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 of the plug blocks. The plug blocks are slidably connected to the inside of the sliding groove, and a return spring is installed inside the sliding groove to press the plug blocks tightly.

[0017] Preferably, a driving head is provided on the outer side of the rotating head away from the DC motor end, and the driving head is fixed to the outer end of the DC motor output shaft. The driving head is evenly provided with the same number of slots as the plug-in blocks on a side close to the rotating head.

[0018] Preferably, a mobile phone compartment is installed on the lower side of the protective shell, and docking pieces are respectively 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 follower heat dissipation housing, which is used for airflow intake through an air inlet and for airflow exhaust through an exhaust port. When the DC motor is not started, the dust isolation ring is in contact with 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 port, and the baffle seals the exhaust port, thereby preventing external dust from entering the protective housing through the exhaust port and the air inlet when the DC motor is not started 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 frames are extended at the same time, so that the connecting frame drives the transmission sleeve to translate through the connecting ring. At this time, the rotating head translates to the side close to the drive head. By plugging the plug block into the slot, the rotating head can be driven to rotate when the output shaft of the DC motor rotates. At this time, the rotating head drives the connecting frame to rotate through the connecting rod, and the connecting frame drives the transmission sleeve to rotate, so that the brush cleans the dust on the outer surface of the DC motor, and the fan blades rotate to cool the DC motor synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0025] Figure 3 Schematic diagram of the cross-sectional structure of the protective shell of the present invention;

[0026] Figure 4 Schematic diagram of the overall structure of the connecting frame of the present invention;

[0027] Figure 5 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 A in the middle is an enlarged structural diagram;

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

[0031] In the figure: 1. Protective shell; 10. Baffle; 11. Bracket; 12. Air inlet; 13. Exhaust port; 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. Dust-proof ring; 7. Rotating head; 70. Slide groove; 71. Insert block; 72. Reset spring; 8. Drive head; 81. Slot; 9. Mobile phone compartment; 91. Docking piece. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] A DC motor follow-up heat dissipation housing, such as Figure 1 and Figure 2 , including a DC motor, the DC motor is wrapped with a protective shell 1, a bracket 11 is installed at the bottom of the protective shell 1, and a fixing plate is installed at the bottom of the bracket 11. The fixing plate is preset with threaded holes so that the fixing plate can be fixed with bolts through the threaded holes. The heat dissipation housing is installed on the required equipment, wherein 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 outer end of the DC motor away from its output shaft. The support plate 2 is fixed to the inside of the protective shell 1 through a support column 21 to support one side of the DC motor.

[0034] In this embodiment, Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 8 , connecting frames 3 are respectively installed on both sides of the outer end of the protective shell 1, and a brush 31 is provided on the side of the connecting frame 3 close to the DC motor, and the brush 31 fits the outer surface of the DC motor, and the outer side of the support column 21 is movably connected with a transmission sleeve 4, which can slide or rotate on the outer side of the support column 21. A number of fan blades 41 are evenly arranged on the outer side of the transmission sleeve 4, and the transmission sleeve 4 is fixed to one end of the connecting frame 3, so that when the two connecting frames 3 rotate with the axis of the DC motor, the DC motor can be cooled by the rotation of the fan blades 41. At the same time, the connecting frame 3 cleans the dust on the outer surface of the DC motor through the brush 31 to avoid excessive dust adhering to the outer surface of the DC motor, so that the heat dissipation and dust removal functions can be performed 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. The fan blades 41 can introduce airflow through the air inlet 12 when rotating, and a first dustproof net 15 is installed inside the air inlet 12. When the airflow passes through the air inlet 12, the dust can be intercepted by the first dustproof net 15 to reduce the dust entering the inside of the protective shell 1. Exhaust ports 13 are respectively provided on both sides of the outer end of the protective shell 1. The exhaust is carried out through the exhaust ports 13 to discharge the airflow inside the protective shell 1. At the same time, a dust isolation ring 6 is fixed to 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 closed by the dust isolation ring 6. At this time, the dust isolation ring 6 fits 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 by 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 respectively fixed on the outside of the two ends of the connecting ring 14 corresponding to the exhaust port 13. The exhaust port 13 can be closed by the baffle 10 to prevent external dust from entering the interior of the protective shell 1 through 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 translate inside the protective shell 1 but cannot rotate. A second dustproof net 101 is provided at one end of the interior of the baffle 10. When the connecting ring 14 translates, 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 inside of the connecting ring 14 through the protrusion at the 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 when the connecting frame 3 translates, the connecting ring 14 can be driven to translate.

[0039] Further, such as Figure 4 and Figure 8Three connecting frames 5 are provided on the outside of one end of the transmission sleeve 4 close to the air inlet 12. The three connecting frames 5 are connected to the transmission sleeve 4 through a connecting ring 51. The connecting ring 51 is 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, so that when the hydraulic telescopic rod 52 is extended or retracted, the transmission sleeve 4 can be driven 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] Further, such as Figure 5 and Figure 7 A driving head 8 is provided on the outer side of the rotating head 7 away from the DC motor at one end, and the driving head 8 is fixed to the outer end of the output shaft of the DC motor. A plurality of plug-in blocks 71 are evenly provided on the side of the rotating head 7 away from the DC motor. At the same time, a slot 81 with the same number as the plug-in blocks 71 is evenly opened on the side of the driving head 8 close to the rotating head 7, so that after the rotating head 7 is plugged into the slot 81 of the driving head 8 through the plug-in blocks 71, the output shaft of the DC motor can drive the rotating head 7 to rotate when it rotates, and then the rotating head 7 drives the two connecting frames 3 to rotate through the connecting rod 32. At this time, the transmission sleeve 4 simultaneously drives the fan blades 41 to rotate.

[0041] In a further embodiment, Figure 5 and Figure 7 If locking sill 75 , being positioned at locking sill 74 of locking sill 74 , lock core 71 is located in the state that stretches out guide pin 74, and lock core 71 is located in the state that stretches out guide pin 74 and is locked in the state that stretches out guide pin 74.

[0042] In another embodiment, Figure 1 、 Figure 3 and Figure 6A mobile phone compartment 9 is installed on the lower side of the protective shell 1, and the mobile phone compartment 9 can be used to clean the dust inside the protective shell 1 and collect the dust that falls. The outer ends of the mobile phone compartment 9 are respectively fixed with docking pieces 91, and the docking pieces 91 can be connected and fixed to the protective shell 1 by bolts, so as to facilitate the installation and fixation of the mobile phone compartment 9 and the protective shell 1, or the mobile phone compartment 9 can be removed from the protective shell 1 to clean the dust collected in the mobile phone compartment 9.

[0043] Working principle: When the DC motor is not started, the dust isolation ring 6 fits against the inner surface of the protective shell 1 to close 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 closes 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, and adhering to the outer surface of the DC motor, thereby improving the dustproof effect.

[0044] After the DC motor is started, the hydraulic telescopic rods 52 corresponding to the three connecting frames 5 are extended at the same time, so that the connecting frame 5 drives the transmission sleeve 4 to translate through the connecting ring 51. At this time, the rotating head 7 translates to the side close to the driving head 8, and the plug block 71 contacts the outer surface of the driving head 8. When the DC motor drives its output shaft to drive the driving head 8 to rotate, when the plug block 71 is aligned with the slot 81, the plug block 71 can automatically plug into the slot 81, and the rotating head 7 can be driven to rotate by the rotation of the DC motor output shaft. At this time, the rotating head 7 drives the connecting frame 3 to rotate through the connecting rod 32, and 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 cool the DC motor synchronously.

[0045] During the extension of the hydraulic telescopic rod 52, the connecting frame 5 drives the transmission sleeve 4 to translate, and the connecting frame 3 drives the connecting ring 14 to translate through the connecting rod 32, so that the dust isolation ring 6 translates and no longer closes the air inlet 12, and 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. At this time, the air flow can enter the protective shell 1 from the air inlet 12, and the air flow in 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, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A DC motor follower heat dissipation housing, comprising a DC motor, the DC motor being wrapped with a protective shell (1), the output shaft of the DC motor extending to the outside of the protective shell (1), a support plate (2) being fixed to the side of the outer end of the DC motor away from the output shaft, the support plate (2) being fixed to the inside of the protective shell (1) through a support column (21), and a bracket (11) being installed at the bottom of the protective shell (1), characterized in that: Also includes: Connecting frames (3) are respectively installed on both sides of the outer end of the protective shell (1), and a brush (31) is provided on the side of the connecting frame (3) close to the DC motor. The outer side of the support column (21) is movably connected to a transmission sleeve (4), and a plurality of fan blades (41) are evenly provided on the outer side of the transmission sleeve (4). An air inlet (12) is provided at one end of the protective shell (1) away from the output shaft of the DC motor, and exhaust ports (13) are respectively provided on both sides of the outer end of the protective shell (1). A dust isolation ring (6) is fixed to one end of the transmission sleeve (4) away from the output shaft of the DC motor. A rotating head (7) is movably connected to the outer side of the output shaft of the DC motor, a connecting ring (14) is provided on the outer side of the rotating head (7), and blocking pieces (10) are respectively fixed on the outer sides of both ends of the connecting ring (14) corresponding to the exhaust port (13).

2. A DC motor follower heat dissipation 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 heat dissipation 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) via a connecting rod (32); The connecting rod (32) can be rotatably connected to the interior of the connecting ring (14) via a protrusion at the outer end.

4. The DC motor follower heat dissipation housing according to claim 1, characterized in that: The baffle (10) is slidably connected to the shell interlayer of the protective shell (1), and a second dustproof net (101) is provided at one end inside the baffle (10).

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

6. The DC motor follower heat dissipation housing according to claim 1, characterized in that: A plurality of inserting blocks (71) are evenly arranged on a side of the rotating head (7) away from the DC motor. A sliding groove (70) is provided inside the rotating head (7) corresponding to each of the inserting blocks (71). The inserting blocks (71) are slidably connected to the inside of the sliding groove (70). A return spring (72) is installed inside the sliding groove (70) to press the inserting blocks (71) tightly.

7. A DC motor follower heat dissipation housing according to claim 6, characterized in that: A driving head (8) is provided on the outer side of the rotating head (7) at one end away from the DC motor. The driving head (8) is fixed to the outer end of the output shaft of the DC motor. A side of the driving head (8) close to the rotating head (7) is evenly provided with slots (81) having the same number as the insert blocks (71).

8. The DC motor follower heat dissipation housing according to claim 1, characterized in that: A mobile phone compartment (9) is installed on the lower side of the protective shell (1), and docking pieces (91) are respectively fixed on both sides of the outer end of the mobile phone compartment (9).

9. The DC motor follower heat dissipation housing according to claim 1, characterized in that: The brush (31) is in contact with the outer surface of the DC motor.

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