Dustproof brushless motor

Abstract

The utility model discloses a dustproof brushless motor, which relates to the technical field of motor dust prevention and comprises an outer shell, a front end cover and a rear end cover, the front end cover and the rear end cover are connected to the left end and the right end of the outer shell, a rotating shaft is rotatably arranged in the outer shell, and a dustproof assembly is arranged in the outer shell. The dustproof assembly comprises a fan which is fixedly connected to the peripheral face of the rotating shaft in a sleeving mode, the fan is located in the front end cover, and the dustproof assembly further comprises a plurality of air inlet holes which are annularly formed in the side wall of the outer shell and the side wall of the rear end cover. When the motor is used, dust mixed in airflow entering the motor can be filtered through the multiple air inlet holes and the multiple sections of filter cotton located in the air inlet holes, the dust is prevented from being accumulated in the motor, meanwhile, the filter cotton in the air inlet holes can be conveniently taken out through the taking-out mechanism, and therefore the filter cotton can be conveniently replaced; and the motor always has a good dustproof effect.

Description

Technical Field

[0001] The utility model relates to the technical field of motor dust prevention, in particular to a dust-proof brushless motor. Background Art

[0002] The motor is the most common power supply device in various modern devices and equipment. It can convert electrical energy into mechanical energy to drive various equipment to work. Since the motor has a high speed when working, it will generate a lot of heat after the motor works for a long time. If this heat cannot be discharged in time, it is very likely to cause the internal parts of the motor to be damaged due to high temperature. Therefore, the motor generally has fan blades fixed on the shaft. As the shaft rotates, the air outside the motor is sucked into the motor to absorb the heat generated by the motor, and then the hot air that absorbs the heat is discharged through the air outlet, thereby achieving heat dissipation of the motor.

[0003] However, this cooling method requires the air to be directly inhaled from the outside, which will inevitably inhale the dust mixed in the air into the motor. After a long period of air inhalation for cooling, a large amount of dust will accumulate inside the motor, hindering the dissipation of heat from the motor, causing the cooling effect of the motor to become worse and worse.

[0004] The Chinese invention patent with patent application number 202311752365.5 records a servo motor with a dustproof housing, which wraps the entire motor body through a heat exchange mechanism, so that after the fan draws in external air, it does not directly contact the motor body inside the heat exchange core, but contacts the heat exchange mechanism to take away the heat generated by the motor body, thereby preventing dust from accumulating on the motor body and realizing the dustproof function. However, in this motor, a connection mechanism is used to manually drive the scraper bar to move left and right to scrape off the dust in the dust pad on the guide bar to ensure that the dust pad can work normally for a long time. However, the dust pad has a loose and porous structure. When air flows through it, a large amount of dust will be absorbed inside it. The dust in the dust pad cannot be completely and effectively cleaned by simply moving the scraper bar back and forth to scrape off the dust. Utility Model Content

[0005] The purpose of the present application is to provide a dustproof brushless motor to solve the problem in the above-mentioned background technology that the dust in the dust cotton pad cannot be completely and effectively cleaned away.

[0006] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a dustproof brushless motor, comprising an outer shell and a front cover and a rear cover connected at the left and right ends of the outer shell, a rotating shaft being rotatably provided in the outer shell, a dustproof component being provided in the outer shell, the dustproof component comprising a fan provided on an outer circumferential surface of the rotating shaft, the fan being located inside the front cover, the dustproof component also comprising a plurality of air inlet holes provided in a ring shape on the side walls of the outer shell and the rear cover, the plurality of air inlet holes completely penetrate the side walls of the outer shell and the rear cover, the left ends of the plurality of air inlet holes are connected with the inner cavity of the front cover, an exhaust port is provided on the outer circumferential surface of the front cover, the dustproof component also comprises a plurality of sections of filter cotton movably plugged into the air inlet holes, and the dustproof component also comprises a removal mechanism provided on the rear cover for removing the filter cotton.

[0007] Preferably, the removal mechanism includes a steel wire rope which is movably inserted into the multiple air inlet holes respectively, one end of the steel wire rope extending into the air inlet hole passes through multiple sections of filter cotton and is connected with a barb, the tip of the barb pierces the inside of the filter cotton at the leftmost end, and the right end of the steel wire rope extends from the right end of the air inlet hole to the outside of the rear end cover. The advantage of such a setting is that one only needs to pull the right end of the steel wire rope directly to the right to cooperate with the barb to pull out the multiple sections of filter cotton in the air inlet hole, thereby conveniently replacing the filter cotton that accumulates a large amount of dust, ensuring that the motor always has a good dustproof effect.

[0008] Preferably, the taking-out mechanism also includes a thick rope fixedly connected to the right ends of all the steel wire ropes at the same time, and the taking-out mechanism also includes a winding roller installed on the right side surface of the rear end cover, the thick rope is wound on the outer peripheral surface of the winding roller, and a knob is fixedly connected to one end of the winding roller rotating rod. The advantage of such a setting is that the thick rope and multiple steel wire ropes can be wound on the winding roller by only turning the knob to drive the winding roller to rotate, thereby extracting the filter cotton in multiple air inlets at the same time, saving the time for extracting the filter cotton, shortening the time for replacing the filter cotton, and improving the practicality of the motor.

[0009] Preferably, the removal mechanism also includes a rope-manipulating drum fixedly connected to the right side surface of the rear end cover, and a plurality of rope-threading holes are provided in a ring shape on the outer circumferential surface of the rope-manipulating drum, and the plurality of rope-threading holes respectively correspond to the plurality of air inlet holes, and the left ends of the plurality of steel wire ropes respectively pass through the plurality of rope-threading holes and simultaneously pass through the right end of the rope-manipulating drum and are connected to the thick rope. The advantage of such a configuration is that a plurality of steel wire ropes can be limited in position, so that the plurality of steel wire ropes can be prevented from being entangled and knotted when being wound by the winding roller, thereby ensuring that the extraction of the filter cotton can be carried out smoothly and improving the reliability of the motor.

[0010] Preferably, the barb includes a plurality of hook tips distributed in a ring shape, and the tips of the plurality of hook tips pierce into the interior of the filter cotton at the leftmost end. The advantage of such a setting is that the filter cotton in the air inlet hole can be hooked out more stably and reliably, preventing part of the filter cotton from being retained in the air inlet hole when the filter cotton is extracted, thereby affecting the normal heat dissipation work.

[0011] Preferably, it also includes a cleaning component for automatically cleaning out the filter cotton sleeved on the wire rope, the cleaning component includes a plurality of rotating plates fixedly sleeved on the outer peripheral surface of the rotating shaft in an annular shape, a plurality of straight needles are fixedly connected to the end of the rotating plate away from the rotating shaft along the axial direction of the rotating shaft, an annular cavity is provided on the inner wall of the rear end cover, the inner top wall of the annular cavity is flush with the axial center line of the air inlet hole, the upper half of the straight needles extends into the inside of the annular cavity, a baffle is fixedly connected between the inner walls of the rear end cover, the baffle is located on the left side of the rotating plate, a sealing cover is provided on the right side surface of the rear end cover, and the rope sorting drum and the winding roller are fixedly connected to the sealing On the right side of the cover, the advantage of such a setting is that you only need to turn the knob regularly to pull the filter cotton to the right for a distance through the wire rope. At this time, the straight needle can rotate under the drive of the rotating shaft and hook a section of the filter cotton located in the annular cavity through the annular cavity, thereby automatically hooking the section of the filter cotton from the wire rope, realizing automatic collection of the filter cotton, further simplifying the replacement of the filter cotton, and multiple sections of filter cotton can be removed from right to left one by one, so that the section of filter cotton with the most dust accumulated on the far right can be removed in an orderly manner, thereby ensuring that the remaining filter cotton can continue to perform dust prevention work without affecting heat dissipation.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, by providing multiple air inlet holes and multiple sections of filter cotton located in the air inlet holes, dust mixed in the air flow entering the motor can be filtered out to prevent dust from accumulating inside the motor. At the same time, by providing a removal mechanism, the filter cotton in the air inlet hole can be easily removed, so that the filter cotton can be easily replaced, ensuring that the motor always has a good dustproof effect.

[0014] 2. In the utility model, the winding roller is driven to rotate by a knob to pull multiple steel ropes to the right. The steel ropes pull multiple sections of filter cotton out of the air inlet hole in sequence through the barbs, which further simplifies the removal operation of the filter cotton and greatly improves the practicality and reliability of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the structure of a dustproof brushless motor in an embodiment of the present application;

[0017] Figure 2 This is a schematic diagram of a first partial structure of a dustproof brushless motor in an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of a second partial structure of a dustproof brushless motor in an embodiment of the present application;

[0019] Figure 4 A third partial structural schematic diagram of a dustproof brushless motor in an embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the structure of the rear end cover in an embodiment of the present application;

[0021] Figure 6 In the embodiment of this application Figure 3 The enlarged schematic diagram of point A in the middle;

[0022] Figure 7 In the embodiment of this application Figure 4 A magnified schematic diagram of point B in the middle.

[0023] In the figure: 1. outer shell; 2. front cover; 3. rear cover; 4. rotating shaft; 5. dustproof component; 51. fan; 52. air inlet; 53. air outlet; 54. filter cotton; 55. removal mechanism; 551. wire rope; 552. barb; 553. thick rope; 554. winding roller; 555. knob; 556. rope drum; 557. rope threading hole; 6. cleaning component; 61. rotating plate; 62. straight needle; 63. annular cavity; 64. baffle; 65. sealing cover. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example: Reference Figure 1-7A dustproof brushless motor shown in the figure comprises an outer shell 1 and a front end cover 2 and a rear end cover 3 connected to the left and right ends of the outer shell 1. A rotating shaft 4 is rotatably provided in the outer shell 1. A dustproof component 5 is provided in the outer shell 1. The dustproof component 5 comprises a fan 51 which is arranged on the outer peripheral surface of the rotating shaft 4 and is fixedly sleeved thereon. The fan 51 is located inside the front end cover 2. The dustproof component 5 also comprises a plurality of air inlet holes 52 which are arranged in an annular shape on the side walls of the outer shell 1 and the rear end cover 3. The plurality of air inlet holes 52 completely penetrate the side walls of the outer shell 1 and the rear end cover 3. The left ends of the plurality of air inlet holes 52 are connected to the inner cavity of the front end cover 2. An exhaust port 53 is provided on the outer peripheral surface of the front end cover 2. The dustproof component 5 also comprises a plurality of filter cottons 54 which are movably inserted in the air inlet holes 52. The dustproof component 5 also comprises a removal mechanism 55 which is arranged on the rear end cover 3 and is used to remove the filter cottons 54.

[0026] refer to Figure 3 , 5 6, the removal mechanism 55 includes a steel wire rope 551 which is movably inserted into the multiple air inlet holes 52 respectively, one end of the steel wire rope 551 extending into the air inlet hole 52 passes through multiple sections of filter cotton 54 and is tied with a barb 552, the tip of the barb 552 pierces the inside of the filter cotton 54 at the leftmost end, and the right end of the steel wire rope 551 extends from the right end of the air inlet hole 52 to the outside of the rear end cover 3.

[0027] Specifically, you only need to pull the right end of the wire rope 551 directly to the right to cooperate with the barb 552 to pull out the multiple sections of filter cotton 54 in the air inlet 52, so that you can easily replace the filter cotton 54 that accumulates a lot of dust, ensuring that the motor always has a good dust-proof effect.

[0028] refer to Figure 5 The taking-out mechanism 55 also includes a thick rope 553 fixedly connected to the right ends of all the steel wire ropes 551 at the same time. The taking-out mechanism 55 also includes a winding roller 554 installed on the right side surface of the rear end cover 3. The thick rope 553 is wound on the outer peripheral surface of the winding roller 554. A knob 555 is fixedly connected to one end of the rotating rod of the winding roller 554.

[0029] Specifically, one only needs to turn the knob 555 to drive the winding roller 554 to rotate, so that the thick rope 553 and multiple steel ropes 551 can be wound on the winding roller 554, thereby extracting the filter cotton 54 in multiple air inlet holes 52 at the same time, saving the time for extracting the filter cotton 54, shortening the time for replacing the filter cotton 54, and improving the practicality of the motor.

[0030] refer to Figure 5The removal mechanism 55 also includes a rope-manipulating drum 556 fixedly connected to the right side surface of the rear end cover 3. A plurality of rope-threading holes 557 are provided in a ring shape on the outer circumference of the rope-manipulating drum 556. The plurality of rope-threading holes 557 respectively correspond to the plurality of air inlet holes 52. The left ends of the plurality of steel ropes 551 respectively pass through the plurality of rope-threading holes 557 and at the same time pass through the right end of the rope-manipulating drum 556 and are connected to the thick rope 553.

[0031] Specifically, the plurality of steel wire ropes 551 can be limited, so that the plurality of steel wire ropes 551 can be prevented from being entangled and knotted when being wound by the winding roller 554, thereby ensuring that the extraction of the filter cotton 54 can be carried out smoothly and improving the reliability of the motor.

[0032] refer to Figure 6 The barb 552 includes a plurality of hook tips distributed in a ring shape, and the tips of the plurality of hook tips penetrate into the interior of the filter cotton 54 at the leftmost end.

[0033] Specifically, the filter cotton 54 in the air inlet hole 52 can be hooked out more stably and reliably, preventing part of the filter cotton 54 from being retained in the air inlet hole 52 when the filter cotton 54 is extracted, thereby affecting the normal heat dissipation work.

[0034] refer to Figure 4 and 7 , and also includes a cleaning component 6 for automatically cleaning the filter cotton 54 sleeved on the wire rope 551. The cleaning component 6 includes a plurality of rotating plates 61 fixedly sleeved on the outer peripheral surface of the rotating shaft 4 in an annular shape. A plurality of straight needles 62 are fixedly connected along the axial direction of the rotating shaft 4 on the end of the rotating plate 61 away from the rotating shaft 4. An annular cavity 63 is provided on the inner wall of the rear end cover 3. The inner top wall of the annular cavity 63 is flush with the axial center line of the air inlet hole 52. The upper half of the straight needle 62 extends into the annular cavity 63. A baffle 64 is fixedly connected between the inner walls of the rear end cover 3. The baffle 64 is located on the left side of the rotating plate 61. A sealing cover 65 is provided on the right side surface of the rear end cover 3. The rope drum 556 and the winding roller 554 are fixedly connected to the right side surface of the sealing cover 65.

[0035] Specifically, it is only necessary to regularly turn the knob 555 to pull the filter cotton 54 to the right for a certain distance through the wire rope 551. At this time, the straight needle 62 is driven by the rotating shaft 4 to rotate and can hook a section of the filter cotton 54 located at the annular cavity 63 through the annular cavity 63, thereby automatically hooking the section of the filter cotton 54 off the wire rope 551, thereby realizing automatic collection of the filter cotton 54, further simplifying the replacement of the filter cotton 54, and removing multiple sections of the filter cotton 54 from right to left one by one, so that the section of the filter cotton 54 with the most dust accumulated on the far right can be removed in an orderly manner, thereby ensuring that the remaining filter cotton 54 can continue to perform dust prevention work without affecting heat dissipation.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof brushless motor, comprising an outer shell (1) and a front cover (2) and a rear cover (3) connected to the left and right ends of the outer shell (1), characterized in that: A rotating shaft (4) is rotatably arranged in the outer shell (1), and a dustproof component (5) is arranged in the outer shell (1). The dustproof component (5) includes a fan (51) arranged on the outer peripheral surface of the rotating shaft (4), and the fan (51) is located inside the front cover (2). The dustproof component (5) also includes a plurality of air inlet holes (52) arranged in an annular shape on the side walls of the outer shell (1) and the rear cover (3). The plurality of air inlet holes (52) completely penetrate the side walls of the outer shell (1) and the rear cover (3), and the left ends of the plurality of air inlet holes (52) are connected to the inner cavity of the front cover (2). An exhaust port (53) is arranged on the outer peripheral surface of the front cover (2). The dustproof component (5) also includes a plurality of filter cottons (54) movably inserted in the air inlet holes (52). The dustproof component (5) also includes a removal mechanism (55) arranged on the rear cover (3) for removing the filter cottons (54).

2. A dustproof brushless motor according to claim 1, characterized in that: The removal mechanism (55) comprises a steel wire rope (551) movably inserted into the plurality of air inlet holes (52), one end of the steel wire rope (551) extending into the air inlet hole (52) passes through a plurality of sections of filter cotton (54) and is connected with a barb (552), the tip of the barb (552) pierces the interior of the filter cotton (54) at the leftmost end, and the right end of the steel wire rope (551) extends from the right end of the air inlet hole (52) to the outside of the rear end cover (3).

3. A dustproof brushless motor according to claim 2, characterized in that: The taking-out mechanism (55) further comprises a thick rope (553) fixedly connected to the right ends of all the steel wire ropes (551) at the same time. The taking-out mechanism (55) further comprises a winding roller (554) mounted on the right side surface of the rear end cover (3). The thick rope (553) is wound on the outer peripheral surface of the winding roller (554). One end of the rotating rod of the winding roller (554) is fixedly connected to a knob (555).

4. The dustproof brushless motor according to claim 3, characterized in that: The taking-out mechanism (55) further comprises a rope-arranging drum (556) fixedly connected to the right side surface of the rear end cover (3); a plurality of rope-threading holes (557) are provided in a ring shape on the outer peripheral surface of the rope-arranging drum (556); the plurality of rope-threading holes (557) respectively correspond to the plurality of air inlet holes (52); the left ends of the plurality of steel wire ropes (551) respectively pass through the plurality of rope-threading holes (557) and simultaneously pass through the right end of the rope-arranging drum (556) and are connected to the thick rope (553).

5. The dustproof brushless motor according to claim 4, characterized in that: The barb (552) includes a plurality of hook tips distributed in a ring shape, and the tips of the plurality of hook tips pierce into the interior of the filter cotton (54) at the leftmost end.

6. The dustproof brushless motor according to claim 5, characterized in that: The invention also comprises a cleaning assembly (6) for automatically cleaning the filter cotton (54) sleeved on the steel wire rope (551), the cleaning assembly (6) comprising a plurality of rotating plates (61) in an annular shape and fixedly sleeved on the outer peripheral surface of the rotating shaft (4), a plurality of straight needles (62) being fixedly connected to one end of the rotating plate (61) away from the rotating shaft (4) along the axis direction of the rotating shaft (4), an annular cavity (63) being provided on the inner side wall of the rear end cover (3), the annular cavity (63) The inner top wall of the rear end cover (3) is flush with the axial center line of the air inlet hole (52), the upper half of the straight needle (62) extends into the annular cavity (63), a baffle (64) is fixedly connected between the inner side walls of the rear end cover (3), the baffle (64) is located on the left side of the rotating plate (61), a sealing cover (65) is provided on the right side surface of the rear end cover (3), and the rope handling drum (556) and the winding roller (554) are fixedly connected to the right side surface of the sealing cover (65).

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