Outer rotor motor with encoder signal line and motor power line outgoing from same side

Abstract

Relates to the technical field of electronics, and discloses an external rotor motor with an encoder signal line and a motor power line outgoing at the same side, which comprises a motor casing, an enameled wire wound inside the motor casing and a support arranged inside the motor casing, and further comprises a PCB (printed circuit board) arranged on the support and used for mounting the motor power line; the connector is fixedly arranged on the PCB, is positioned above the power line and is used for mounting an encoder signal line; according to the utility model, the fixation of the encoder signal line and the power line can be realized through one PCB, the cost is saved, the power line and the encoder signal line can be limited through the wire bunching unit, and the wire bunching unit is arranged between the power line and the encoder signal line. A power line and an encoder signal line can be conveniently stored to keep neatness between the lines, and the power line and the encoder signal line can be conveniently stored.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic technology, in particular to an outer rotor motor with an encoder signal line and a motor power line outlet on the same side. Background Art

[0002] Most of the existing outer rotor motor output structure with encoder leads out the U, V, W three-phase winding enameled wire of the motor from the stator coil winding, and the enameled wire is welded to the PCB board by soldering. Because the magnetic steel and encoder are arranged axially of the motor, and to ensure the connection reliability of the encoder signal harness and the PCB board, the encoder signal harness usually needs to rely on a connector to connect to the PCB board. Therefore, the distance between the PCB board and the winding enameled wire is generally large. When the winding enameled wire is welded to the PCB board, the span of the enameled wire will be larger and it will be in a suspended state. When the motor is subjected to strong vibration or mechanical shock, the enameled wire is likely to shake. In order to save axial installation space.

[0003] The existing equipment has the following disadvantages: At present, some manufacturers have proposed adding a transfer PCB between the PCB board and the winding enameled wire, and arranging the winding enameled wire and the motor power line on the transfer PCB, but this method will increase the motor assembly process and parts cost. The motor power line and the encoder signal harness are generally led out from different directions. In installation occasions where there are requirements for the motor outlet position, the motor harness will be relatively scattered.

[0004] Therefore, the present application proposes an outer rotor motor in which the encoder signal line and the motor power line are output on the same side to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide an outer rotor motor with encoder signal lines and motor power lines coming out from the same side, so as to solve the above-mentioned problem of increasing the motor assembly process and parts cost.

[0006] To achieve the above object, the utility model provides the following technical solution: an outer rotor motor with encoder signal line and motor power line coming out on the same side, comprising a motor housing, an enameled wire wound inside the motor housing, and a bracket arranged inside the motor housing, and also comprising:

[0007] A PCB board is arranged on the bracket and is used for installing a motor power line;

[0008] A connector, fixedly arranged on the PCB and located above the power line, for installing an encoder signal line;

[0009] The wiring harness unit is arranged between the power line and the encoder signal line, and is used to constrain the power line and the encoder signal line.

[0010] In which, the wiring harness unit includes a mounting frame, first wire clamps spaced apart at the upper end of the mounting frame for fixing the encoder signal line, and second wire clamps spaced apart at the lower end of the mounting frame for fixing the power line, the number of the first wire clamps is the same as the number of the encoder signal lines, and the number of the second wire clamps is the same as the number of the power lines.

[0011] Wherein, the mounting frame is provided with a limiting device for fixing the positions of the encoder signal line and the power line;

[0012] The limiting device comprises a first elastic wire fixed to one side of the mounting frame and a second elastic wire fixed to the other side of the mounting frame, and the first elastic wire and the second elastic wire are bolted and fixed.

[0013] A fixing buckle is fixed on the second elastic line, the fixing buckle is buckled with the first elastic line, and a fixing hole for fixing the fixing buckle is opened on the first elastic line.

[0014] Wherein, the first elastic wire and the second elastic wire are sleeved on the outside of the motor housing.

[0015] Wherein, the PCB board is fixedly connected to the bracket by screws.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model fixes the PCB board to the upper end of the bracket, and then fixes the enameled wire in the through hole opened on the PCB board, and then welds the encoder signal line to the encoder PCB board through the connector, and directly welds the motor power line to the encoder PCB board. The motor power line and the winding enameled wire are connected through the copper layer on the PCB board, so that the motor drive signal is transmitted to the winding enameled wire through the motor power line, so that the motor rotates. The encoder PCB board is arranged as close to the enameled wire as possible, the connector is arranged on the upper side of the encoder PCB board, and the motor power line is arranged on the lower side of the encoder PCB board. This design can shorten The distance between the encoder PCB board and the winding enameled wire makes the suspended section of the winding enameled wire shorter after welding, and the encoder signal line and the power line can be fixed by a single PCB board, saving costs. When the motor is subjected to strong vibration or mechanical shock, the enameled wire will not shake and be damaged. The power line and the encoder signal line can be restricted by the wire harness unit, and a certain distance can be maintained between multiple lines, thereby facilitating the heat dissipation of the power line and the encoder signal line, and the power line and the encoder signal line can be conveniently stored to keep the lines tidy, and conveniently store the power line and the encoder signal line. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure in one embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of a top view of a structure in one embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of a cross-section structure of an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of fixing the encoder signal line and the power line on the PCB board in one embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the connection explosion between the wiring harness unit and the PCB board in one embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure when the harness unit is connected to the motor housing in one embodiment of the utility model. In the figure: 1, motor housing; 11, enameled wire; 2, bracket; 3, PCB board; 31, connector; 4, screw; 5, encoder signal line; 6, power line; 7, harness unit; 71, mounting frame; 72, first wire clamp; 73, second wire clamp; 74, first elastic wire; 741, fixing hole; 75, second elastic wire; 751, fixing buckle. 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] See also Figure 1-6 The utility model provides a technical solution: an outer rotor motor with an encoder signal line and a motor power line output on the same side, comprising a motor housing 1, an enameled wire 11 wound inside the motor housing 1, and a bracket 2 arranged inside the motor housing 1, and also comprising:

[0026] A PCB board 3 is arranged on the bracket 2 and is used for installing a motor power line 6;

[0027] The connector 31 is fixedly arranged on the PCB board 3 and located above the power line 6, and is used for installing the encoder signal line 5;

[0028] The wiring harness unit 7 is disposed between the power line 6 and the encoder signal line 5 and is used to constrain the power line 6 and the encoder signal line 5 .

[0029] It should be noted that, when working, the PCB board 3 is fixed to the upper end of the bracket 2, and then the enameled wire 11 is fixed in the through hole opened on the PCB board 3, and then the encoder signal line 5 is welded to the encoder PCB board 3 through the connector 31, and the motor power line 6 is directly welded to the encoder PCB board 3. The motor power line 6 and the winding enameled wire 11 are connected through the copper layer on the PCB board 3, so that the motor drive signal is transmitted to the winding enameled wire 11 through the motor power line 6, so that the motor rotates. The encoder PCB board 3 is arranged as close to the enameled wire 11 as possible, the connector 31 is arranged on the upper side of the encoder PCB board 3, and the motor power line 6 is arranged on the lower side of the encoder PCB board 3. This design can shorten the distance between the encoder PCB board 3 and the winding enameled wire 11, making the suspended section of the winding enameled wire 11 shorter after welding, and the encoder signal line 5 and the power line 6 can be fixed by a single PCB board 3, saving costs. When the motor is subjected to strong vibration or mechanical shock, the enameled wire 11 will not shake and be damaged, and the power line 6 and the encoder signal line 5 can be restricted by the wire bundle unit 7, so that a certain distance can be maintained between multiple lines, thereby facilitating the heat dissipation of the power line 6 and the encoder signal line 5, and the power line 6 and the encoder signal line 5 can be conveniently stored to keep the lines tidy, and the power line 6 and the encoder signal line 5 can be conveniently stored.

[0030] In one embodiment, the wiring harness unit 7 includes a mounting frame 71, first wire clamps 72 spaced apart at the upper end of the mounting frame 71 for fixing the encoder signal line 5, and second wire clamps 73 spaced apart at the lower end of the mounting frame 71 for fixing the power line 6. The number of the first wire clamps 72 is the same as the number of the encoder signal lines 5, and the number of the second wire clamps 73 is the same as the number of the power lines 6.

[0031] With this design, the encoder signal line 5 is clamped in the first wire clamp 72, and then the power line 6 is clamped in the second wire clamp 73. The encoder signal line 5 and the power line 6 are placed neatly, which can facilitate heat dissipation and keep the lines neat, and facilitate the subsequent connection and storage of the encoder signal line 5 and the power line 6.

[0032] In one embodiment, the mounting frame 71 is provided with a limiting device for fixing the positions of the encoder signal line 5 and the power line 6;

[0033] The limiting device includes a first elastic line 74 fixed to one side of the mounting frame 71 and a second elastic line 75 fixed to the other side of the mounting frame 71 . The first elastic line 74 and the second elastic line 75 are bolted and fixed.

[0034] With this design, after the encoder signal line 5 is clamped in the first wire clamp 72 and the power line 6 is clamped in the second wire clamp 73, the first elastic line 74 and the second elastic line 75 are used to bundle the encoder signal line 5 and the power line 6, which can save the placement space of the encoder signal line 5 and the power line 6.

[0035] In one embodiment, a fixing buckle 751 is fixed on the second elastic line 75 , and the fixing buckle 751 is buckled with the first elastic line 74 . A fixing hole 741 for fixing the fixing buckle 751 is opened on the first elastic line 74 .

[0036] With this design, when the motor is stored, the encoder signal line 5 is clamped in the first wire clamp 72, the power line 6 is clamped in the second wire clamp 73, the first elastic line 74 and the second elastic line 75 are wound around the encoder signal line 5 and the power line 6, and then the fixing buckle 751 on the second elastic line 75 is fixed in the fixing hole 741 on the first elastic line 74. The buckle setting can facilitate disassembly and assembly.

[0037] In one embodiment, the first elastic wire 74 and the second elastic wire 75 are sleeved on the outside of the motor housing 1 .

[0038] With this design, when the motor is stored or transported, the encoder signal line 5 is clamped in the first wire clamp 72, the power line 6 is clamped in the second wire clamp 73, the fixing buckle 751 on the second elastic line 75 is fixed in the fixing hole 741 on the first elastic line 74, and then the first elastic line 74 and the second elastic line 75 are put on the outer shell of the motor housing 1, so that the encoder signal line 5 and the power line 6 are tied to the motor housing 1 for easy storage of the lines.

[0039] In one embodiment, the PCB board 3 is fixedly connected to the bracket 2 via screws 4 .

[0040] With this design, the PCB board 3 is fixed by the screws 4, and the PCB board 3 can be easily disassembled and assembled.

[0041] In addition, if there are descriptions involving "first", "second", etc. in the embodiments, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying the importance of the relative description or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

Claims

1. An outer rotor motor with an encoder signal line and a motor power line connected to the same side, comprising a motor housing (1), an enameled wire (11) wound inside the motor housing (1), and a bracket (2) arranged inside the motor housing (1), characterized in that: Also includes: A PCB board (3) is arranged on the bracket (2) and is used for installing a motor power line (6); A connector (31) fixedly arranged on the PCB board (3) and located above the power line (6), and used for installing an encoder signal line (5); A wiring harness unit (7) is arranged between the power line (6) and the encoder signal line (5) and is used to constrain the power line (6) and the encoder signal line (5).

2. An outer rotor motor with encoder signal line and motor power line coming out from the same side according to claim 1, characterized in that: The wiring harness unit (7) comprises a mounting frame (71), first wire clamps (72) arranged at intervals on the upper end of the mounting frame (71) for fixing the encoder signal wires (5), and second wire clamps (73) arranged at intervals on the lower end of the mounting frame (71) for fixing the power wires (6), wherein the number of the first wire clamps (72) is the same as the number of the encoder signal wires (5), and the number of the second wire clamps (73) is the same as the number of the power wires (6).

3. An outer rotor motor with encoder signal line and motor power line coming out on the same side as claimed in claim 2, characterized in that: The mounting frame (71) is provided with a limiting device for fixing the positions of the encoder signal line (5) and the power line (6); The limiting device comprises a first elastic line (74) fixed on one side of the mounting frame (71) and a second elastic line (75) fixed on the other side of the mounting frame (71), and the first elastic line (74) and the second elastic line (75) are bolted and fixed.

4. An outer rotor motor with encoder signal line and motor power line coming out from the same side according to claim 3, characterized in that: A fixing buckle (751) is fixed on the second elastic line (75), the fixing buckle (751) is buckled with the first elastic line (74), and a fixing hole (741) for fixing the fixing buckle (751) is provided on the first elastic line (74).

5. The outer rotor motor according to claim 3, wherein the encoder signal line and the motor power line are connected on the same side, characterized in that: The first elastic wire (74) and the second elastic wire (75) are sleeved on the outside of the motor housing (1).

6. An outer rotor motor with encoder signal line and motor power line coming out from the same side according to claim 1, characterized in that: The PCB board (3) is fixedly connected to the bracket (2) via screws (4).

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