Holder motor and holder

Abstract

The utility model belongs to the technical field of motors, and discloses a pan-tilt motor and a pan-tilt. The pan-tilt motor comprises a shell, a motor stator, a motor rotor and a rotating shaft, the shell is provided with an installation groove used for installing a motor stator and a motor rotor, an installation column is arranged in the middle of the installation groove, a through hole is formed in the installation column, and a dustproof boss is annularly arranged on the inner wall of the installation groove. The motor stator sleeves the mounting column, the rotating shaft is rotatably mounted in the through hole, one end, located in the mounting groove, of the rotating shaft is connected with the motor rotor, and the dustproof boss extends towards the motor rotor to prevent dust from entering the mounting groove. According to the pan-tilt motor, the dustproof effect is achieved, meanwhile, the size of the pan-tilt motor is reduced, the miniaturization design requirement of the pan-tilt motor is met, the universality of the pan-tilt motor is improved, and the pan-tilt motor is simple in structure and low in production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a pan head motor and a pan head. Background Art

[0002] The gimbal is a supporting device for installing and fixing sensors such as mobile phones, cameras, and camcorders. It can drive the load to rotate horizontally, pitch, roll, or in one or more directions in space, making it convenient for users to shoot. The gimbal is widely used, not only in the field of consumer electronics, but also in the fields of industry, security, and military. In addition, robots such as drones and unmanned vehicles also widely use the gimbal for navigation, path planning, target tracking, and shooting.

[0003] The rotation of the gimbal mainly depends on the internal motor. The existing gimbal motor dustproof method is usually to use a shell to enclose the stator and rotor therein. Although this method can achieve dustproof, it will increase the size of the gimbal motor. When the installation space is limited, the above gimbal motor cannot be used.

[0004] Therefore, it is urgent to propose a pan / tilt motor and a pan / tilt to solve the above technical problems. Utility Model Content

[0005] According to one aspect of the utility model, the utility model provides a pan-tilt motor, which reduces the size of the pan-tilt motor while achieving a dustproof effect, meets the miniaturization design requirements of the pan-tilt motor, improves the universality of the pan-tilt motor, and has a simple structure and low production cost.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The pan / tilt motor comprises a housing, a motor stator, a motor rotor and a rotating shaft;

[0008] The housing is provided with a mounting groove for mounting the motor stator and the motor rotor, a mounting column is provided in the middle of the mounting groove, a through hole is provided in the mounting column, and a dustproof boss is provided on the inner wall of the mounting groove;

[0009] The motor stator is sleeved outside the mounting column, the rotating shaft is rotatably mounted in the through hole, one end of the rotating shaft located in the mounting groove is connected to the motor rotor, and the dustproof boss extends toward the motor rotor to prevent dust from entering the mounting groove.

[0010] Optionally, a plurality of dustproof bosses are provided, and the plurality of dustproof bosses are spaced apart along the axial direction of the mounting groove.

[0011] Optionally, the distance between the dust-proof boss and the motor rotor is 0.4 mm-0.5 mm.

[0012] Optionally, the diameter of the mounting groove gradually decreases from the opening of the mounting groove to the bottom of the mounting groove.

[0013] Optionally, the dust-proof boss extends along the axial direction of the mounting groove, and a dust collecting groove is formed between the dust-proof boss and the inner wall of the mounting groove.

[0014] Optionally, along the circumference of the motor rotor, a plurality of dustproof plates are provided on the outer peripheral wall of the motor rotor at intervals, the dustproof plates include a first dustproof surface, a second dustproof surface and a third dustproof surface connected in sequence, the first dustproof surface is arranged parallel to and opposite to the inner wall of the mounting groove, the second dustproof surface is arranged parallel to and opposite to the top surface of the dustproof boss, and the third dustproof surface is arranged parallel to and opposite to the side surface of the dustproof boss close to the bottom of the mounting groove.

[0015] Optionally, a distance between the third dustproof surface and a side surface of the dustproof boss close to the bottom of the mounting groove is 0.4 mm-0.8 mm.

[0016] Optionally, the pan / tilt motor further includes a rotor casing covering the motor rotor, and a gap between an outer peripheral wall of the rotor casing and an inner wall of the mounting groove is 0.4 mm-0.8 mm.

[0017] Optionally, a limiting surface matching with the rotor housing is arranged around the opening of the mounting groove, and a distance between the limiting surface and the bottom wall of the rotor housing is 0.4 mm-0.8 mm.

[0018] According to another aspect of the utility model, the utility model also provides a gimbal, including a gimbal body and a gimbal motor described in any of the above technical solutions, wherein the gimbal motor is connected to the gimbal body.

[0019] Beneficial effects of the utility model:

[0020] The utility model provides a pan-tilt motor, comprising a shell, a motor stator, a motor rotor and a rotating shaft. The motor stator and the motor rotor are both installed in the mounting groove of the shell, and a dust-proof boss is arranged on the inner wall of the mounting groove, and the dust-proof boss extends toward the motor rotor. Through the cooperation between the dust-proof boss and the motor rotor, dust entering the mounting groove through the gap between the shell and the motor rotor needs to bypass the dust-proof boss before entering the interior of the mounting groove, that is, the purpose of dust prevention is achieved by increasing the difficulty of dust entering the interior of the mounting groove. Compared with the method of setting a closed shell to wrap the motor stator and the motor rotor in the prior art to achieve dust prevention, the closed shell is omitted, thereby reducing the size of the pan-tilt motor, meeting the miniaturized design requirements of the pan-tilt motor, and improving the universality of the pan-tilt motor. In addition, the pan-tilt motor has a simpler structure, is easy to process, and has a lower cost.

[0021] The utility model also provides a pan head, comprising a pan head body and the pan head motor. Due to the use of the pan head motor, the pan head has a small overall size, can be used in a small installation space, and has high universality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 is a cross-sectional view of a pan / tilt motor provided by an embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a housing provided by an embodiment of the utility model;

[0025] Figure 3 yes Figure 1 A local enlarged view at point A;

[0026] Figure 4 It is a structural schematic diagram of a motor rotor provided by an embodiment of the utility model;

[0027] Figure 5 yes Figure 1 A partial enlarged view at point B.

[0028] In the figure:

[0029] 100, housing; 110, mounting groove; 120, mounting column; 121, through hole; 122, limiting boss; 130, dust-proof boss; 131, dust collecting groove; 140, limiting surface; 200, motor stator; 300, motor rotor; 310, dust-proof plate; 311, first dust-proof surface; 312, second dust-proof surface; 313, third dust-proof surface; 400, rotating shaft; 500, rotor housing; 600, bearing. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] This embodiment provides a pan-tilt motor, which reduces the size of the pan-tilt motor while achieving a dust-proof effect, meets the miniaturization design requirements of the pan-tilt motor, improves the universality of the pan-tilt motor, and has a simple structure and low production cost.

[0035] Specifically, Figure 1-Figure 3 As shown, the pan / tilt motor includes a housing 100 , a motor stator 200 , a motor rotor 300 and a rotating shaft 400 .

[0036] The housing 100 is provided with a mounting groove 110 for mounting the motor stator 200 and the motor rotor 300, a mounting column 120 is provided in the middle of the mounting groove 110, a through hole 121 is provided in the mounting column 120, and a dust-proof boss 130 is provided on the inner wall of the mounting groove 110. The motor stator 200 is sleeved outside the mounting column 120, the shaft 400 is rotatably mounted in the through hole 121, one end of the shaft 400 located in the mounting groove 110 is connected to the motor rotor 300, and the dust-proof boss 130 extends toward the motor rotor 300 to prevent dust from entering the interior of the mounting groove 110.

[0037] The pan-tilt motor provided in this embodiment has a dustproof boss 130 matched with the motor rotor 300 arranged on the housing 100, so that dust entering the mounting groove 110 from the gap between the housing 100 and the motor rotor 300 needs to bypass the dustproof boss 130 before entering the interior of the mounting groove 110, that is, the purpose of dust prevention is achieved by increasing the difficulty of dust entering the interior of the mounting groove 110. Compared with the dustproof method of setting a closed housing to wrap the motor stator 200 and the motor rotor 300 in the prior art to achieve dust prevention, the closed housing is omitted, thereby reducing the size of the pan-tilt motor, meeting the miniaturization design requirements of the pan-tilt motor, and improving the universality of the pan-tilt motor. In addition, the pan-tilt motor has a simpler structure, is easy to process, and has a lower cost.

[0038] Furthermore, a plurality of dust-proof bosses 130 may be provided, and the plurality of dust-proof bosses 130 are spaced apart along the axial direction of the mounting slot 110. The number of dust-proof bosses 130 may also be selected and set according to the need for dust-proof effect of the pan / tilt motor. The higher the dust-proof effect requirement, the more dust-proof bosses 130 need to be set.

[0039] Optionally, the distance between the dust-proof boss 130 and the motor rotor 300 cannot be too large, otherwise the dust-proof effect is poor, nor too small, otherwise the rotation of the motor rotor 300 may be hindered. In this embodiment, the distance between the dust-proof boss 130 and the motor rotor 300 is 0.4 mm-0.5 mm, and can be 0.4 mm, 0.45 mm or 0.5 mm, etc., according to actual needs, and this application does not make specific limitations.

[0040] Further, see Figure 1-Figure 3 Since the size of the motor stator 200 is smaller than that of the motor rotor 300, in this embodiment, the diameter of the mounting groove 110 gradually decreases from the opening of the mounting groove 110 to the bottom of the mounting groove 110, that is, the mounting groove 110 is tapered. This arrangement makes the mounting groove 110 more compatible with the shape of the motor stator 200 and the motor rotor 300, avoids the waste of the bottom space of the mounting groove 110, reduces the size of the housing 100 to a certain extent, and further reduces the size of the entire pan / tilt motor.

[0041] Further, see Figure 2 and Figure 3 The dust-proof boss 130 extends along the axial direction of the mounting groove 110, and a dust collecting groove 131 is formed between the dust-proof boss 130 and the inner wall of the mounting groove 110. By setting the dust-proof boss 130 to extend along the axial direction of the mounting groove 110, it is difficult for dust to pass over the dust-proof boss 130, the dust-proof effect of the dust-proof boss 130 is better, and the processing of the dust-proof boss 130 is convenient. Moreover, the dust collecting groove 131 formed between the dust-proof boss 130 and the inner wall of the mounting groove 110 can receive dust, and also plays a dust-proof effect to a certain extent.

[0042] Furthermore, if Figure 3 and Figure 4 As shown, along the circumference of the motor rotor 300, a plurality of spaced dustproof plates 310 are provided on the outer peripheral wall of the motor rotor 300, and the dustproof plates 310 include a first dustproof surface 311, a second dustproof surface 312 and a third dustproof surface 313 which are connected in sequence. The first dustproof surface 311 is arranged parallel to and opposite to the inner wall of the mounting groove 110, the second dustproof surface 312 is arranged parallel to and opposite to the top surface of the dustproof boss 130, and the third dustproof surface 313 is arranged parallel to and opposite to the side surface of the dustproof boss 130 close to the bottom of the mounting groove 110.

[0043] By setting the dustproof plate 310 to cooperate with the inner wall of the mounting groove 110 and the dustproof boss 130, the dust entering from the gap between the motor rotor 300 and the mounting groove 110 needs to first pass through the gap between the first dustproof surface 311 and the inner wall of the mounting groove 110, then bypass one side wall of the dustproof boss 130 and pass through the gap between the second dustproof surface 312 and the top surface of the dustproof boss 130, and then pass through the gap between the third dustproof surface 313 and the other side wall of the dustproof boss 130 before entering the interior of the mounting groove 110. Such a setting greatly increases the difficulty for dust to enter the interior of the mounting groove 110, thereby effectively improving the dustproof effect.

[0044] It is worth noting that, in the present embodiment, the distance a between the top surface of the dustproof boss 130 and the second dustproof surface 312 is 0.4 mm-0.5 mm.

[0045] Optionally, continue to see Figure 3 The distance between the third dustproof surface 313 and the dustproof boss 130 cannot be too large, otherwise the dustproof effect is poor, nor can it be too small, otherwise it may hinder the rotation of the motor rotor 300. In this embodiment, the distance b between the third dustproof surface 313 and the side of the dustproof boss 130 close to the bottom of the installation groove 110 is 0.4mm-0.8mm, and can be 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8mm, etc., which can be set according to actual needs, and this application does not make specific limitations.

[0046] Furthermore, if Figure 3 and Figure 5 As shown, the above-mentioned pan-tilt motor also includes a rotor casing 500, which is covered on the motor rotor 300, and a gap c between the outer peripheral wall of the rotor casing 500 and the inner wall of the mounting groove 110 is 0.4mm-0.8mm. Exemplarily, it can be 0.4mm, 0.5mm, 0.6mm, 0.7mm or 0.8mm, etc., which can be set according to actual needs, and this application does not make specific limitations.

[0047] By setting the distance between the rotor housing 500 and the inner wall of the mounting groove 110 to be smaller, the probability of dust entering the mounting groove 110 through the gap between the rotor housing 500 and the mounting groove 110 can be reduced, thereby achieving a dust-proof effect.

[0048] Furthermore, if Figure 2 and Figure 5 As shown, a limiting surface 140 matching with the rotor housing 500 is provided around the opening of the installation groove 110, and the limiting surface 140 can limit the installation position of the rotor housing 500. In addition, the distance d between the limiting surface 140 and the bottom wall of the rotor housing 500 is 0.4 mm-0.8 mm. Such a setting can not only ensure that the rotor housing 500 can rotate reliably with the rotor, but also play a certain dustproof effect, thereby improving the dustproof performance of the above-mentioned pan / tilt motor.

[0049] Exemplarily, the distance d between the limiting surface 140 and the bottom wall of the mounting groove 110 may be 0.4 mm, 0.5 mm, 0.6 mm, 0.7 mm or 0.8 mm, etc., and may be set according to actual needs, and this application does not make any specific limitation.

[0050] Further, see Figure 1 The rotating shaft 400 is rotatably connected to the mounting column 120 through the bearing 600 . Specifically, the inner ring of the bearing 600 is sleeved on the rotating shaft 400 , and the outer ring of the bearing 600 is fixedly connected to the inner wall of the through hole 121 of the mounting column 120 .

[0051] Further, see Figure 1A limiting boss 122 is provided on the inner wall of the through hole 121, and two bearings 600 are provided, and the two bearings 600 are respectively arranged on both sides of the limiting boss 122. In this arrangement, if the rotating shaft 400 is pulled outward by hand, the limiting boss 122 will prevent the rotating shaft 400 from being pulled out due to the contact with the bearing 600, thereby improving the firmness of the installation of the rotating shaft 400.

[0052] This embodiment also provides a pan head, including a pan head body and the above-mentioned pan head motor, and the pan head motor is connected to the pan head body.

[0053] Since the pan / tilt head adopts the above-mentioned pan / tilt head motor, the overall size is small, and it can be used in conditions where the installation space is small, and has high universality.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. PTZ motor, characterized in that: It comprises a housing (100), a motor stator (200), a motor rotor (300) and a rotating shaft (400); The housing (100) is provided with a mounting groove (110) for mounting the motor stator (200) and the motor rotor (300); a mounting column (120) is provided in the middle of the mounting groove (110); a through hole (121) is provided in the mounting column (120); and a dustproof boss (130) is provided on the inner wall of the mounting groove (110); The motor stator (200) is sleeved outside the mounting column (120), the rotating shaft (400) is rotatably mounted in the through hole (121), one end of the rotating shaft (400) located in the mounting groove (110) is connected to the motor rotor (300), and the dustproof boss (130) extends toward the motor rotor (300) to prevent dust from entering the interior of the mounting groove (110).

2. The pan / tilt motor according to claim 1, characterized in that: A plurality of dustproof bosses (130) are provided, and the plurality of dustproof bosses (130) are arranged at intervals along the axial direction of the mounting groove (110).

3. The pan / tilt motor according to claim 1, characterized in that: The distance between the dustproof boss (130) and the motor rotor (300) is 0.4 mm-0.5 mm.

4. The pan / tilt motor according to claim 1, characterized in that: From the opening of the installation groove (110) to the bottom of the installation groove (110), the diameter of the installation groove (110) gradually decreases.

5. The pan / tilt motor according to claim 4, characterized in that: The dust-proof boss (130) extends along the axial direction of the mounting groove (110), and a dust collecting groove (131) is formed between the dust-proof boss (130) and the inner wall of the mounting groove (110).

6. The pan / tilt motor according to claim 5, characterized in that: A plurality of dustproof plates (310) are provided on the outer peripheral wall of the motor rotor (300) along the circumferential direction of the motor rotor (300), and the dustproof plates (310) include a first dustproof surface (311), a second dustproof surface (312), and a third dustproof surface (313) connected in sequence, wherein the first dustproof surface (311) is arranged parallel to and opposite to the inner wall of the mounting groove (110), the second dustproof surface (312) is arranged parallel to and opposite to the top surface of the dustproof boss (130), and the third dustproof surface (313) is arranged parallel to and opposite to the side surface of the dustproof boss (130) close to the bottom of the mounting groove (110).

7. The pan / tilt motor according to claim 6, characterized in that: The distance between the third dustproof surface (313) and the side surface of the dustproof boss (130) close to the bottom of the mounting groove (110) is 0.4 mm-0.8 mm.

8. The pan / tilt motor according to claim 1, characterized in that: The pan / tilt motor further comprises a rotor housing (500) which is covered on the motor rotor (300), and a gap between an outer peripheral wall of the rotor housing (500) and an inner wall of the mounting groove (110) is 0.4 mm-0.8 mm.

9. The pan / tilt motor according to claim 8, characterized in that: A limiting surface (140) matching with the rotor housing (500) is arranged around the opening of the installation groove (110), and the distance between the limiting surface (140) and the bottom wall of the rotor housing (500) is 0.4 mm-0.8 mm.

10. A pan / tilt head, characterized in that: It comprises a pan-tilt body and a pan-tilt motor according to any one of claims 1 to 9, wherein the pan-tilt motor is connected to the pan-tilt body.

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