CN214380338U

CN214380338U - Brushless outer rotor structure for holder

Info

Publication number: CN214380338U
Application number: CN202120040800.1U
Authority: CN
Inventors: 郭鹏; 陈建能; 亢汉宁; 刘建伟; 梁小华; 林李健; 高蓓; 王留章
Original assignee: Loda Technology Co ltd
Current assignee: Huizhou Longde Technology Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-08
Anticipated expiration: 2031-01-08

Abstract

The utility model relates to a brushless motor technical field, in particular to cloud platform is with brushless outer rotor structure. The magnetic flux shield comprises a base with a shaft sleeve, an iron core sleeved on the periphery of the shaft sleeve, an outer rotor component which can rotatably penetrate through the base and cover the outer side of the iron core, and a PCBA (printed Circuit Board Assembly) clamped and embedded at the bottom of the base; the bottom of the base is provided with a locking structure for fixing the PCBA board. The installation mode through external PCBA board reduces the inside volume of motor, makes things convenient for the motor assembly, separates PCBA board and the bottom surface of base through circular cushion, avoids PCBA board whole surface and base bottom surface contact. And meanwhile, the bottom of the base is provided with a locking structure for fixing the PCBA, the PCBA is fixed at the bottom of the base through the locking structure, the stable installation of the PCBA is realized, the PCBA is prevented from deforming and warping, and the performance of the brushless motor is ensured.

Description

Brushless outer rotor structure for holder

Technical Field

The utility model relates to a brushless motor technical field, in particular to cloud platform is with brushless outer rotor structure.

Background

The cradle head is a supporting device for mounting and fixing the camera, is suitable for scanning and monitoring in a large range, can enlarge the monitoring range of the camera, and is driven by two different motors to rotate in the horizontal direction and the vertical direction by an electric cradle head.

Along with the diversification of cloud platform application environment, cloud platform motor's installation requirement is also more and more high, cloud platform motor uses brushless motor among the prior art mostly, most brushless motor is inside to include the coil, and install the circuit board that provides external power source for the coil in the motor, built-in circuit board has increased brushless motor's volume, make brushless motor assemble the difficulty on the cloud platform, and the circuit board majority is the mounting means through the bonding, cause brushless motor circuit board to warp and warpage easily, cause the influence to brushless motor's performance.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an invention aim at provides a cloud platform is with brushless external rotor structure, adopts the utility model provides a technical scheme has solved current brushless motor's circuit board embeds the volume that has increased brushless motor for brushless motor assembles the difficulty on the cloud platform, and the mounting means causes the problem of circuit board deformation and warpage easily.

In order to solve the technical problem, the utility model provides a brushless external rotor structure for a holder, which comprises a base, an iron core, an external rotor component and a PCBA plate, wherein the base is provided with a shaft sleeve, the iron core is sleeved on the periphery of the shaft sleeve, the external rotor component is rotatably arranged on the base in a penetrating way and covers the outer side of the iron core, and the PCBA plate is embedded at the bottom of the base in a clamping way; the bottom of the base is provided with a locking structure for fixing the PCBA board.

Preferably, a plurality of columns are formed at the bottom of the base, positioning holes for the columns to be embedded into are formed in the PCBA, fixing bolts which can be connected with the base are installed at the bottom of the PCBA, and the columns and the fixing bolts form the locking structure.

Preferably, a plurality of circular cushion blocks for spacing the bottom surface of the base and the PCBA are formed at the bottom of the base.

Preferably, the outer rotor assembly comprises a casing covering the outer side of the iron core, a magnetic ring embedded in the inner side of the casing, and a rotating shaft inserted in the casing; the rotating shaft is rotatably arranged in the shaft sleeve in a penetrating mode.

Preferably, the top of the casing is formed with a mounting hole site.

Preferably, a plurality of deep groove ball bearings are embedded in the shaft sleeve, and the rotating shaft penetrates through the deep groove ball bearings; the bottom of the rotating shaft is provided with a positioning snap ring.

Preferably, the base is made of zinc alloy.

From the above, use the utility model provides a can obtain following beneficial effect: the iron core is arranged through the periphery cover of the shaft sleeve of the base, the outer rotor assembly is rotatably arranged on the base in a penetrating mode, the outer rotor assembly covers the outer side of the iron core, the PCBA plate is embedded in the bottom of the base in a clamping mode, the inner volume of the motor is reduced through the installation mode of the external PCBA plate, the motor is convenient to assemble, the PCBA plate is spaced from the bottom surface of the base through the circular cushion block, and the whole surface of the PCBA plate is prevented from contacting with the bottom surface of the base. And meanwhile, the bottom of the base is provided with a locking structure for fixing the PCBA, the PCBA is fixed at the bottom of the base through the locking structure, the stable installation of the PCBA is realized, the PCBA is prevented from deforming and warping, and the performance of the brushless motor is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.

Fig. 1 is a sectional view of a brushless outer rotor structure for a pan/tilt head according to an embodiment of the present invention;

fig. 2 is a bottom view of the brushless outer rotor structure for a pan/tilt head according to an embodiment of the present invention;

FIG. 3 is a schematic view of a base structure according to an embodiment of the present invention;

fig. 4 is an internal structure diagram of the brushless external rotor structure for the pan/tilt head according to the embodiment of the present invention;

fig. 5 is a perspective view of the embodiment of the present invention, showing a brushless outer rotor structure for a pan/tilt head.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the above technical problem, the present embodiment provides a brushless outer rotor structure for a pan/tilt head, as shown in fig. 1, the brushless outer rotor structure comprises a base 10 having a shaft sleeve 11 formed in the middle thereof, an iron core 40 is sleeved on the outer periphery of the shaft sleeve 11 of the base 10, an outer rotor component 30 is rotatably disposed on the base 10 in a penetrating manner, the outer rotor component 30 covers the outer side of the iron core 40, a PCBA board 20 is embedded in the bottom of the base 10 in a clamping manner, the internal volume of a motor is reduced by an installation manner of the external PCBA board 20, so that the motor assembly is facilitated, meanwhile, a locking structure for fixing the PCBA board 20 is disposed at the bottom of the base 10, the PCBA board 20 is fixed at the bottom of the base 10 by the locking structure, the PCBA board 20 is stably mounted, deformation and warpage of the PCBA board 20 are avoided, and the performance of the brushless motor is ensured.

Specifically, as shown in fig. 2-3, a plurality of columns 12 are formed at the bottom of the base 10, positioning holes into which the columns 12 can be inserted are formed in the PCBA board 20, the PCBA board 20 is accurately positioned and mounted by fitting the positioning holes of the PCBA board 20 with the columns 12 of the base 10, fixing bolts 13 which can be connected with the base 10 are installed at the bottom of the PCBA board 20, after the positioning holes of the PCBA board 20 are inserted into the columns 12 of the base 10, the fixing bolts 13 are installed from the bottom of the PCBA board 20, and are fixedly connected with the bottom of the base 10 by the fixing bolts 13 through threads, so that the PCBA board 20 is locked at the bottom of the base 10, and the columns 12 and the fixing bolts 13 form the above-mentioned locking structure, wherein the columns 12 are distributed in a triangular shape, the PCBA board 20 is stably installed at the bottom of the base 10 by the locking structure, so as to avoid deformation and warpage of the PCBA board 20, and ensure the performance of the brushless motor.

In order to form a reserved space between the PCBA board 20 and the bottom surface of the base 10, as shown in fig. 3, a plurality of circular spacers 15 for spacing the bottom surface of the base 10 from the PCBA board 20 are formed at the bottom of the base 10, and after the PCBA board 20 is locked at the bottom of the base 10 by the fixing bolts 13 and the bottom of the base 10 through thread fixing connection, the PCBA board 20 is spaced from the bottom surface of the base 10 through the circular spacers 15, so as to prevent the whole surface of the PCBA board from contacting the bottom surface of the base 10. Wherein the thickness of the round cushion block is 0.2 mm.

Further, as shown in fig. 4, the outer rotor assembly 30 includes a housing 31 covering the outer side of the iron core 40, a magnetic ring 32 embedded in the housing 31, and a rotating shaft 33 inserted in the housing 31, wherein the rotating shaft 33 is rotatably inserted in the shaft sleeve 11. The magnetic ring 32 is positioned outside the iron core 40, and a winding is arranged in the iron core 40 and is connected with the PCBA board 20 through wires. One end of the rotating shaft 33 is fixed with the casing 31, two deep groove ball bearings 35 are embedded in the shaft sleeve 11, the rotating shaft 33 penetrates through the deep groove ball bearings 35, the casing 31 is rotated under the electromagnetic action of the magnetic ring 32 and the iron core 40, the rotating shaft 33 is driven to rotate in the deep groove ball bearings 35, the positioning snap ring 14 is arranged at the bottom of the rotating shaft 33, and the axial movement of the rotating shaft 33 is limited by the positioning snap ring 14.

As shown in fig. 5, in order to facilitate the positioning and installation of the complete machine and the cloud deck camera of the client, the mounting holes 34 are formed at the top of the casing 31, the casing 31 and the cloud deck camera can be locked and positioned through the two reserved mounting holes 34, the casing 31 and the cloud deck camera can be accurately assembled and connected, the assembly is stable and convenient, and the stability of the integral installation is improved.

The base 10 is made of zinc alloy, a zinc alloy die-casting forming mode is adopted, the base precision can be guaranteed through zinc alloy die-casting, secondary machining can be avoided, and cost is saved.

To sum up, the utility model discloses the scheme is equipped with the iron core through the periphery cover at the axle sleeve of base, but the rotatable wearing of base has put outer rotor subassembly, and outer rotor subassembly covers in the iron core outside, has PCBA board at the bottom inlay card of base, and the mounting means through external PCBA board reduces the inside volume of motor, makes things convenient for the motor assembly, separates PCBA board and the bottom surface of base through circular cushion, avoids the whole surface of PCBA board and base bottom surface contact. And meanwhile, the bottom of the base is provided with a locking structure for fixing the PCBA, the PCBA is fixed at the bottom of the base through the locking structure, the stable installation of the PCBA is realized, the PCBA is prevented from deforming and warping, and the performance of the brushless motor is ensured.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. The utility model provides a cloud platform is with brushless outer rotor structure which characterized in that: the magnetic control mechanism comprises a base (10) formed with a shaft sleeve (11), an iron core (40) sleeved on the periphery of the shaft sleeve (11), an outer rotor component (30) which can rotate to penetrate through the base (10) and cover the outer side of the iron core (40), and a PCBA board (20) clamped and embedded at the bottom of the base (10); the bottom of the base (10) is provided with a locking structure for fixing the PCBA board (20).

2. The brushless outer rotor structure for a pan/tilt head according to claim 1, wherein: the base (10) bottom is formed with a plurality of cylinder (12), set up on PCBA board (20) and supply the locating hole of cylinder (12) embedding, PCBA board (20) bottom install can with fixing bolt (13) that base (10) are connected, cylinder (12) and fixing bolt (13) constitute locking structure.

3. The brushless outer rotor structure for a pan/tilt head according to claim 2, wherein: a plurality of circular cushion blocks (15) used for spacing the bottom surface of the base (10) and the PCBA board (20) are formed at the bottom of the base (10).

4. The brushless outer rotor structure for a pan/tilt head according to claim 2, wherein: the outer rotor assembly (30) comprises a shell (31) covering the outer side of the iron core (40), a magnetic ring (32) embedded in the shell (31) and a rotating shaft (33) inserted in the shell (31); the rotating shaft (33) is rotatably arranged in the shaft sleeve (11) in a penetrating mode.

5. The brushless outer rotor structure for a pan/tilt head according to claim 4, wherein: and the top of the machine shell (31) is provided with a mounting hole position (34).

6. The brushless outer rotor structure for a pan/tilt head according to claim 4, wherein: a plurality of deep groove ball bearings (35) are embedded in the shaft sleeve (11), and the rotating shaft (33) penetrates through the deep groove ball bearings (35); the bottom of the rotating shaft (33) is provided with a positioning snap ring (14).

7. The brushless outer rotor structure for a pan/tilt head according to any one of claims 1 to 6, wherein: the base (10) is made of zinc alloy.