Micro motor with protection mechanism

Abstract

The invention belongs to the technical field of micro motors, and particularly relates to a micro motor with a protection mechanism, which is characterized in that an arc-shaped cover is matched with an extension plate, and an output shaft rotates to drive a transmission shaft rod and arc-shaped blades in an exhaust sleeve to operate through a transmission belt, so that the interior of the exhaust sleeve rotates to generate negative pressure; air in the arc-shaped cover is pumped out through the communicating pipe until the air is exhausted through the exhaust sleeve, so that the flowing speed of the air inside and outside the protective shell can be increased, the over-temperature phenomenon caused by long-time rotation of the output shaft is avoided, and meanwhile, steam and liquefied water drops can be pumped out; and steam outside the protection shell is prevented from being in contact with the micro motor body to influence operation of the micro motor body, and the protection effect on the micro motor body is further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of micro motors, and specifically relates to a micro motor with a protection mechanism. Background Art

[0002] A micro motor is a type of motor with a relatively small volume and capacity, and its output power is generally below several hundred watts.

[0003] After retrieval, the patent with the publication number: CN115967217B discloses a micro motor with a protection mechanism. This patent points out that when the existing micro motor is applied to a heat exchanger, there is a phenomenon that steam is likely to enter the interior of the micro motor, which affects the normal operation of the micro motor. In addition, due to the frequent opening and closing of the electric control valve in the heat exchanger, this easily causes the micro motor to be overloaded and damaged.

[0004] However, the sealing performance of the output shaft of this micro motor is poor, and external air easily enters the interior of the motor through the connection between the output shaft and the motor, affecting the protection effect of the micro motor. Summary of the Invention

[0005] The purpose of the present invention is to provide a micro motor with a protection mechanism to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention is realized through the following technical solutions: A micro motor with a protection mechanism includes a micro motor body and a protection housing. The micro motor body is fixedly installed inside the protection housing. An output shaft is connected inside the micro motor body. The output shaft passes through the protection housing, and a protection component is provided between the output shaft and the protection housing. The protection component includes an arc-shaped cover. The arc-shaped cover is fixedly installed inside the protection housing. A positioning shaft sleeve is fixedly sleeved on the outside of the output shaft. One end of the positioning shaft sleeve close to the arc-shaped cover is fixedly installed with an extension plate. The extension plate is located inside the arc-shaped cover. The end of the protection housing is fixedly installed with a protection shaft sleeve. The protection shaft sleeve is rotatably sleeved on the outside of the positioning shaft sleeve. The end of the arc-shaped cover is fixedly installed with an annular baffle. A concave groove is opened at the bottom of the protection housing, and an exhaust sleeve is fixedly installed inside the concave groove. A communication pipe is connected between the exhaust sleeve and the arc-shaped cover. A drive shaft rod is rotatably connected inside the exhaust sleeve. A transmission belt is connected between the drive shaft rod and the output shaft. An arc-shaped blade is fixedly sleeved at the end of the drive shaft rod. The arc-shaped blade is located inside the exhaust sleeve and is used to rotate with the drive shaft rod to extract the steam and condensed water droplets inside the arc-shaped cover.

[0007] Preferably, a one-way valve is fixedly installed at the end of the exhaust sleeve.

[0008] Preferably, a limiting baffle is fixedly installed inside the exhaust sleeve. The limiting baffle is inclined and used to block the extracted steam and water droplets.

[0009] Preferably, a rear sealing plate is fixedly installed at the end of the protective housing. A heat insulation assembly is arranged inside the protective housing and used to block the high-temperature air outside from the micro motor body.

[0010] Preferably, the heat insulation assembly includes a heat insulation ring frame. The heat insulation ring frame is fixedly installed outside the micro motor body. A sound insulation ring frame is fixedly installed outside the heat insulation ring frame, and the sound insulation ring frame is fixedly connected to the inner wall of the protective housing.

[0011] Preferably, a conical protective frame is fixedly installed at the end of the heat insulation ring frame. The conical protective frame is sleeved at one end of the micro motor body close to the output shaft.

[0012] Preferably, an assembly component is arranged outside the protective housing and used to install the micro motor body at a preset position. The assembly component includes a pin positioning frame. There are two pin positioning frames and they are respectively fixedly installed outside the protective housing. Right-angled positioning pins are fixedly installed inside the pin positioning frames, and positioning notches are respectively arranged inside the right-angled positioning pins.

[0013] Preferably, sound insulation pads are fixedly installed between the right-angled positioning pins and the inside of the pin positioning frames.

[0014] Preferably, a plurality of cooling coils are fixedly installed inside the protective housing and used to dissipate heat from the micro motor body.

[0015] Preferably, the plurality of cooling coils are communicated with each other and symmetrically distributed outside the micro motor body.

[0016] The present invention provides a micro motor with a protection mechanism. Compared with the prior art, the following beneficial effects are achieved: (1) Through the cooperation of the arc-shaped cover and the extension plate, as the output shaft rotates, the drive shaft rod and the arc-shaped blades inside the exhaust sleeve are driven to operate through the transmission belt, so that negative pressure is generated inside the exhaust sleeve during rotation, and the air inside the arc-shaped cover is extracted through the connecting pipe until it is discharged through the exhaust sleeve, which can accelerate the air flow speed inside and outside the protective housing, avoid the phenomenon of overheating during long-term rotation of the output shaft, and at the same time can extract the steam and liquefied water droplets, avoiding the steam outside the protective housing from contacting the micro motor body 1 and affecting the operation of the micro motor body, and further improving the protection effect on the micro motor body.

[0017] (2) By providing a heat insulation component, the present invention can block the micro motor body from the high-temperature air outside through the cooperation of the heat insulation ring frame, and make the temperature inside the protective housing tend to be constant through the flow of the coolant inside the cooling coil, ensuring the normal operation of the micro motor body. At the same time, through the cooperation of the sound insulation ring frame, the noise generated during the operation of the micro motor body can be absorbed, improving the use effect of the micro motor body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 for the present invention Figure 1 sectional structure schematic diagram; Figure 3 for the present invention Figure 2 enlarged structure schematic diagram at A in; Figure 4 for the present invention Figure 2 front view structure schematic diagram; Figure 5 is a sectional structure schematic diagram of the protective housing of the present invention; Figure 6 for the present invention Figure 5 enlarged structure schematic diagram at B in; Figure 7 for the present invention Figure 5 front view structure schematic diagram; Figure 8 is a sectional structure schematic diagram of the exhaust sleeve of the present invention.

[0019] In the figure: 1, micro motor body; 101, output shaft; 1011, positioning bushing; 1012, extension plate; 2, protective housing; 201, protective bushing; 202, rear end plate; 3, pin positioning frame; 301, sound insulation backing plate; 4, right-angle positioning pin; 401, positioning notch; 5, sound insulation ring frame; 6, heat insulation ring frame; 7, conical protective frame; 8, concave notch; 9, exhaust sleeve; 901, check valve; 10, connecting pipe; 11, arc-shaped cover; 1101, annular baffle; 12, cooling coil; 13, drive shaft rod; 1301, arc-shaped blade; 1302, drive belt; 14, limit baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer toFigures 1-8 , the present invention provides two technical solutions, specifically including the following embodiments: Embodiment 1 A micro motor with a protection mechanism, including a micro motor body 1 and a protection housing 2. The micro motor body 1 is fixedly installed inside the protection housing 2. An output shaft 101 is connected inside the micro motor body 1. The output shaft 101 passes through the protection housing 2, and a protection component is provided between the output shaft 101 and the protection housing 2; Specifically, the protection component includes an arc-shaped cover 11. The arc-shaped cover 11 is fixedly installed inside the protection housing 2. A positioning shaft sleeve 1011 is fixedly sleeved on the outer side of the output shaft 101. An extension plate 1012 is fixedly installed at one end of the positioning shaft sleeve 1011 close to the arc-shaped cover 11. The extension plate 1012 is located inside the arc-shaped cover 11. A protection shaft sleeve 201 is fixedly installed at the end of the protection housing 2. The protection shaft sleeve 201 is rotatably sleeved on the outer side of the positioning shaft sleeve 1011. An annular baffle 1101 is fixedly installed at the end of the arc-shaped cover 11; A concave groove 8 is opened at the bottom of the protection housing 2, and an exhaust sleeve 9 is fixedly installed inside the concave groove 8. A communication pipe 10 is connected between the exhaust sleeve 9 and the arc-shaped cover 11. A transmission shaft rod 13 is rotatably connected inside the exhaust sleeve 9. A transmission belt 1302 is connected between the transmission shaft rod 13 and the output shaft 101. An arc-shaped blade 1301 is fixedly sleeved at the end of the transmission shaft rod 13. The arc-shaped blade 1301 is located inside the exhaust sleeve 9 and is used to rotate with the transmission shaft rod 13 to extract the steam and condensed water droplets inside the arc-shaped cover 11; When the micro motor body 1 operates, as the output shaft 101 rotates, it drives the positioning shaft sleeve 1011 to rotate inside the protection shaft sleeve 201. At this time, external air can enter the inside of the arc-shaped cover 11 through the gap between the positioning shaft sleeve 1011 and the protection shaft sleeve 201; Specifically, as the output shaft 101 rotates, it drives the transmission shaft rod 13 inside the exhaust sleeve 9 to operate through the transmission belt 1302, thereby driving the arc-shaped blade 1301 to rotate inside the exhaust sleeve 9 to generate negative pressure, and extracting the air inside the arc-shaped cover 11 through the communication pipe 10 until it is discharged through the exhaust sleeve 9. Thus, it can accelerate the air flow speed inside and outside the protection housing 2 and avoid the phenomenon of overheating of the output shaft 101 during long-term rotation; Specifically, when the steam enters the inside of the arc-shaped cover 11 through the gap between the positioning shaft sleeve 1011 and the protection shaft sleeve 201, the steam and the water droplets liquefied after the steam contacts the inner wall of the arc-shaped cover 11 can be extracted through the operation of the arc-shaped blade 1301 inside the exhaust sleeve 9. Thus, it can prevent the steam outside the protection housing 2 from contacting the micro motor body 1, further improving the use effect of the micro motor body 1 and extending its service life; Specifically, a one-way valve 901 is fixedly installed at the end of the exhaust sleeve 9. The one-way valve 901 is an existing device and is used to prevent external gas from entering the inside of the connecting pipe 10 through the exhaust sleeve 9; Furthermore, a limit baffle 14 is fixedly installed inside the exhaust sleeve 9. The limit baffle 14 is inclined and is used to block the extracted steam and water droplets. By setting the limit baffle 14, when the micro-motor body 1 is operating, as the steam and water droplets enter the inside of the exhaust sleeve 9 from the connecting pipe 10, they can be blocked by the limit baffle 14, preventing the steam and water droplets from entering the inside of the protective housing 2 through the connection between the transmission belt 1302 and the exhaust sleeve 9, and further ensuring the protection effect of the micro-motor body 1; Furthermore, a rear sealing plate 202 is fixedly installed at the end of the protective housing 2, and a heat insulation component is provided inside the protective housing 2 for blocking the micro-motor body 1 from the high-temperature air outside; The heat insulation component includes a heat insulation ring frame 6. The heat insulation ring frame 6 is fixedly installed outside the micro-motor body 1. A sound insulation ring frame 5 is fixedly installed outside the heat insulation ring frame 6, and the sound insulation ring frame 5 is fixedly connected to the inner wall of the protective housing 2; The material of the heat insulation ring frame 6 is an existing heat insulation material and is used to block the external air temperature to avoid affecting the normal operation of the micro-motor body 1; the material of the sound insulation ring frame 5 is an existing sound insulation material and is used to absorb the noise generated during the operation of the micro-motor body 1, improving the use effect of the micro-motor body 1; A conical protective frame 7 is fixedly installed at the end of the heat insulation ring frame 6. The conical protective frame 7 is sleeved on one end of the micro-motor body 1 close to the output shaft 101, and the conical protective frame 7 is used to ensure the sealing between the heat insulation ring frame 6 and the micro-motor body 1.

[0022] Embodiment 2 Based on Embodiment 1, a micro-motor with a protection mechanism includes a micro-motor body 1 and a protective housing 2. The micro-motor body 1 is fixedly installed inside the protective housing 2. An output shaft 101 is connected inside the micro-motor body 1, and the output shaft 101 passes through the protective housing 2, and a protection component is provided between the output shaft 101 and the protective housing 2; Specifically, the protection component includes an arc-shaped cover 11. The arc-shaped cover 11 is fixedly installed inside the protective housing 2. A positioning shaft sleeve 1011 is fixedly sleeved outside the output shaft 101. An extension plate 1012 is fixedly installed at one end of the positioning shaft sleeve 1011 close to the arc-shaped cover 11. The extension plate 1012 is located inside the arc-shaped cover 11. A protective shaft sleeve 201 is fixedly installed at the end of the protective housing 2. The protective shaft sleeve 201 is rotatably sleeved outside the positioning shaft sleeve 1011, and a ring-shaped baffle 1101 is fixedly installed at the end of the arc-shaped cover 11; A concave notch 8 is formed at the bottom of the protective housing 2, and an exhaust sleeve 9 is fixedly installed inside the concave notch 8. A communication pipe 10 is connected between the exhaust sleeve 9 and the arc-shaped cover 11. A transmission shaft rod 13 is rotatably connected inside the exhaust sleeve 9. A transmission belt 1302 is connected between the transmission shaft rod 13 and the output shaft 101. An arc-shaped blade 1301 is fixedly sleeved at the end of the transmission shaft rod 13. The arc-shaped blade 1301 is located inside the exhaust sleeve 9 and is used to rotate with the transmission shaft rod 13 to extract the steam and condensed water droplets inside the arc-shaped cover 11. When the micro-motor body 1 operates, as the output shaft 101 rotates, it drives the positioning shaft sleeve 1011 to rotate inside the protective shaft sleeve 201. At this time, external air can enter the inside of the arc-shaped cover 11 through the gap between the positioning shaft sleeve 1011 and the protective shaft sleeve 201. Specifically, as the output shaft 101 rotates, it drives the transmission shaft rod 13 inside the exhaust sleeve 9 to operate through the transmission belt 1302, thereby driving the arc-shaped blade 1301 to rotate inside the exhaust sleeve 9 to generate negative pressure, and extracting the air inside the arc-shaped cover 11 through the communication pipe 10 until it is discharged through the exhaust sleeve 9. This can accelerate the air flow speed inside and outside the protective housing 2 and avoid the phenomenon of overheating of the output shaft 101 during long-term rotation. Specifically, when the steam enters the inside of the arc-shaped cover 11 through the gap between the positioning shaft sleeve 1011 and the protective shaft sleeve 201, the steam and the water droplets liquefied after the steam contacts the inner wall of the arc-shaped cover 11 can be extracted through the operation of the arc-shaped blade 1301 inside the exhaust sleeve 9. This can prevent the steam outside the protective housing 2 from contacting the micro-motor body 1, further improve the use effect of the micro-motor body 1, and extend the service life. Specifically, a one-way valve 901 is fixedly installed at the end of the exhaust sleeve 9. The one-way valve 901 is an existing device and is used to prevent external gas from entering the inside of the communication pipe 10 through the exhaust sleeve 9. In the embodiment of the present invention, further, a limit baffle 14 is fixedly installed inside the exhaust sleeve 9. The limit baffle 14 is inclined and is used to block the extracted steam and water droplets. By setting the limit baffle 14, when the micro-motor body 1 operates, as the steam and water droplets enter the inside of the exhaust sleeve 9 from the communication pipe 10, they can be blocked by the limit baffle 14 to prevent the steam and water droplets from entering the inside of the protective housing 2 through the connection between the transmission belt 1302 and the exhaust sleeve 9, further ensuring the protection effect of the micro-motor body 1. Further, a rear sealing plate 202 is fixedly installed at the end of the protective housing 2. A heat insulation component is provided inside the protective housing 2 to block the high-temperature air outside from the micro-motor body 1. The thermal insulation assembly includes a thermal insulation ring frame 6 which is fixedly installed on the outer side of the micro-motor body 1. A sound insulation ring frame 5 is fixedly installed on the outer side of the thermal insulation ring frame 6, and the sound insulation ring frame 5 is fixedly connected to the inner wall of the protective housing 2; The thermal insulation ring frame 6 is made of existing thermal insulation materials and is used to block the external air temperature to avoid affecting the normal operation of the micro-motor body 1; the sound insulation ring frame 5 is made of existing sound insulation materials and is used to absorb the noise generated during the operation of the micro-motor body 1 to improve the use effect of the micro-motor body 1; A conical protective frame 7 is fixedly installed at the end of the thermal insulation ring frame 6. The conical protective frame 7 is sleeved on one end of the micro-motor body 1 close to the output shaft 101, and the conical protective frame 7 is used to ensure the sealing between the thermal insulation ring frame 6 and the micro-motor body 1; Specifically, an assembly component is provided on the outer side of the protective housing 2 for installing the micro-motor body 1 to a preset position. The assembly component includes pin positioning frames 3. There are two pin positioning frames 3 which are respectively fixedly installed on the outer side of the protective housing 2. Right-angle positioning pins 4 are fixedly installed inside the pin positioning frames 3. Positioning notches 401 are formed inside the right-angle positioning pins 4. The cooperation of the right-angle positioning pins 4 and the positioning notches 401 can assemble the micro-motor body 1 to the preset position through positioning bolts; Sound insulation pads 301 are fixedly installed between the right-angle positioning pins 4 and the inside of the pin positioning frames 3. By providing the sound insulation pads 301, the noise generated when the micro-motor body 1 vibrates can be effectively reduced; A plurality of cooling coils 12 are fixedly installed inside the protective housing 2 for dissipating heat from the micro-motor body 1; The plurality of cooling coils 12 communicate with each other and are symmetrically distributed on the outer side of the micro-motor body 1; Specifically, by providing the cooling coils 12, the coolant can be pumped into the cooling coils 12 for circulation, thereby dissipating heat from the micro-motor body 1 during operation to ensure the operation effect of the micro-motor body 1; Specifically, the pump is an existing device and is not shown in the figure; Specifically, both ends of the cooling coils 12 penetrate through the protective housing 2 to facilitate connection to the pump to realize the circulating delivery of the coolant.

[0023] At the same time, the content not described in detail in this specification belongs to the well-known prior art to those skilled in the art.

[0024] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equal changes and improvements made according to the scope of application of the present invention shall still fall within the scope covered by the present invention.

Claims

1. A micro motor with a protection mechanism, comprising a micro motor body (1) and a protection housing (2), characterized in that: The micro motor body (1) is fixedly installed inside the protective housing (2). An output shaft (101) is connected inside the micro motor body (1). The output shaft (101) passes through the protective housing (2), and a protective component is provided between the output shaft (101) and the protective housing (2). The protective component includes an arc-shaped cover (11). The arc-shaped cover (11) is fixedly installed inside the protective housing (2). A positioning shaft sleeve (1011) is fixedly sleeved on the outer side of the output shaft (101). One end of the positioning shaft sleeve (1011) close to the arc-shaped cover (11) is fixedly installed with an extension plate (1012). The extension plate (1012) is located inside the arc-shaped cover (11). The end of the protective housing (2) is fixedly installed with a protective shaft sleeve (201). The protective shaft sleeve (201) is rotatably sleeved on the outer side of the positioning shaft sleeve (1011). The end of the arc-shaped cover (11) is fixedly installed with an annular baffle (1101). A concave groove opening (8) is formed at the bottom of the protective housing (2), and an exhaust sleeve (9) is fixedly installed inside the concave groove opening (8). A communication pipe (10) is connected between the exhaust sleeve (9) and the arc-shaped cover (11). A transmission shaft rod (13) is rotatably connected inside the exhaust sleeve (9). A transmission belt (1302) is connected between the transmission shaft rod (13) and the output shaft (101). An arc-shaped blade (1301) is fixedly sleeved at the end of the transmission shaft rod (13). The arc-shaped blade (1301) is located inside the exhaust sleeve (9) and is used to pump out the steam and condensed water droplets inside the arc-shaped cover (11) as the transmission shaft rod (13) rotates.

2. The micro-motor with a protection mechanism according to claim 1, characterized in that: A one-way valve (901) is fixedly installed at the end of the exhaust sleeve (9).

3. A micro motor with a protection mechanism according to claim 1, characterized in that: A limiting baffle (14) is fixedly installed inside the exhaust sleeve (9). The limiting baffle (14) is inclined and is used to block the pumped steam and water droplets.

4. A micro motor with a protection mechanism according to claim 1, characterized in that: A rear sealing plate (202) is fixedly installed at the end of the protective housing (2). A heat preservation component is provided inside the protective housing (2) to block the high-temperature air between the micro motor body (1) and the outside.

5. The micro-motor with a protection mechanism according to claim 4, characterized in that: The heat preservation component includes a heat preservation ring frame (6). The heat preservation ring frame (6) is fixedly installed on the outer side of the micro motor body (1). A sound insulation ring frame (5) is fixedly installed on the outer side of the heat preservation ring frame (6). The sound insulation ring frame (5) is fixedly connected to the inner wall of the protective housing (2).

6. The micro motor with a protection mechanism according to claim 5, characterized in that: A conical protective frame (7) is fixedly installed at the end of the heat preservation ring frame (6). The conical protective frame (7) is sleeved on one end of the micro motor body (1) close to the output shaft (101).

7. A micro motor with a protection mechanism according to claim 1, characterized in that: An assembly component is provided on the outer side of the protective housing (2) to install the micro motor body (1) to a preset position. The assembly component includes pin positioning frames (3). There are two pin positioning frames (3) and they are respectively fixedly installed on the outer side of the protective housing (2). Right-angle positioning pins (4) are fixedly installed inside the pin positioning frames (3). Positioning slot openings (401) are formed inside the right-angle positioning pins (4).

8. A micro motor with a protection mechanism according to claim 7, characterized in that: Sound insulation pads (301) are fixedly installed between the right-angle positioning pins (4) and the interior of the pin positioning frame (3).

9. The micro motor with a protection mechanism according to claim 1, characterized in that: A plurality of cooling coils (12) are fixedly installed inside the protective housing (2) for dissipating heat from the micro motor body (1).

10. A micro motor with a protection mechanism according to claim 9, characterized in that: The plurality of cooling coils (12) communicate with each other and are symmetrically distributed on the outer side of the micro motor body (1).

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