Motor cover mounting and positioning structure of micro motor

Abstract

The utility model discloses a motor cover mounting and positioning structure of a micro motor, which relates to the technical field of micro motors and comprises a limit support arranged at the upper end of a motor cover main body, the limit support is fixedly connected with the motor cover main body, and the device can push a clamping head to move by mounting a puller spring. One end of the clamping head is clamped into the motor shell, then the motor shell is positioned, the motor shell is fixedly connected with the motor cover body, the device adopts an internal connection mode, the connecting position of the motor cover body and the motor shell can be isolated from the outside, and the connecting position of the motor cover body and the motor shell is prevented from being rusted. And meanwhile, the connecting strength of the device is not affected by vibration after long-time use, and the stability of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of micro motors, in particular to a motor cover installation and positioning structure of a micro motor. Background Art

[0002] A micro motor, also known as a motor, is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. The motor generally consists of a housing, a motor cover, and components such as a stator, a rotor (armature), bearings, and brushes assembled in the housing. The housing is mainly used to fix and protect the internal stator, rotor, bearings, brushes, and other functional components, and the motor cover plays a role in sealing and protection.

[0003] However, the existing method of fixing the motor casing and the motor cover usually uses screws to connect the motor casing and the motor cover. Since the motor will generate certain vibrations when running, the screws will loosen after long-term use of the motor, affecting the stability of the connection between the motor cover and the casing, and further affecting the normal use of the motor. Therefore, it does not meet the existing needs. In this regard, we propose a motor cover installation and positioning structure for a micro motor. Utility Model Content

[0004] The purpose of the utility model is to provide a motor cover installation and positioning structure for a micro motor, so as to solve the problem that the fixing method of the motor housing and the motor cover proposed in the above background technology usually adopts a screw installation method to connect the motor housing and the motor cover. Since the motor will generate certain vibrations during operation, the screws will loosen after long-term use of the motor, affecting the stability of the connection between the motor cover and the casing, and further affecting the normal use of the motor.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a motor cover installation and positioning structure for a micro motor, comprising a motor cover main body:

[0006] A limit bracket, which is arranged at the upper end of the motor cover body, the limit bracket is fixedly connected to the motor cover body, a tightening spring is installed at the upper end inside the limit bracket, a connecting shaft is arranged inside the tightening spring, a mounting plate is installed at one end of the connecting shaft, a magnetic part is installed at one side of the mounting plate, and a clamping head is installed at the other end of the connecting shaft;

[0007] The assembly thread is arranged at the upper end of the outside of the motor cover body. The outer annular array of the assembly thread has six thread rings, and magnetic plates are installed between the six adjacent thread rings.

[0008] Preferably, the upper end annular array of the motor cover body has six matching positioning bosses, and the six matching positioning bosses are fixedly connected to the motor cover body.

[0009] Preferably, a connecting boss is installed on the upper end of the motor cover body, and the connecting boss is fixedly connected to the motor cover body.

[0010] Preferably, one end of the tension spring is fixedly connected to a limit bracket, and six limit brackets are provided.

[0011] Preferably, the connecting shaft and the limiting bracket are slidably connected via a slot, and the mounting plate is fixedly connected to the connecting shaft.

[0012] Preferably, the magnetic member is fixedly connected to the mounting plate, the clamping head is connected to the limiting bracket via a clamping groove, and the clamping head is fixedly connected to the connecting shaft.

[0013] Preferably, a motor housing is installed on the upper end of the motor cover body, the motor housing is connected to the clamping head via a slot, and the six matching positioning bosses are connected to the motor housing via the slot.

[0014] Preferably, the magnetic plate is fixedly connected to a threaded ring, and the threaded ring is cooperatively connected to an assembly thread.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model can push the clamping head to move by installing a tightening spring, so that one end of the clamping head is clamped into the motor housing, and then the motor housing is positioned, so that the motor housing and the motor cover body are connected and fixed. The device adopts an internal connection form, which can isolate the connection between the motor cover body and the motor housing from the outside world, prevent the connection between the motor cover body and the motor housing from rusting, and at the same time make the connection strength of the device not affected by vibration under long-term use, thereby enhancing the stability of the device;

[0017] 2. The utility model can be moved outside the motor cover body in cooperation with the threaded ring by installing a magnetic plate. When the magnetic plate moves to the same level as the magnetic part, the magnetic plate magnetically attracts the magnetic part, so that the magnetic part drives the clamping head to be pulled out from the inside of the motor housing through the connecting shaft, making the device more convenient to disassemble, facilitating the staff to repair the motor and enhancing the practicality of the device. The provision of a matching positioning boss can be matched with the motor housing for positioning, making the device installation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of a motor cover installation and positioning structure of a micro motor of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of a motor cover installation and positioning structure of a micro motor of the utility model;

[0020] Figure 3It is a three-dimensional stereogram of a motor cover installation and positioning structure of a micro motor of the utility model;

[0021] Figure 4 It is a three-dimensional stereogram of the motor housing of the utility model;

[0022] Figure 5 It is an enlarged view of part A of the utility model.

[0023] In the figure: 1. Motor cover body; 2. Assembly thread; 3. Connecting boss; 4. Threaded ring; 5. Magnetic plate; 6. Motor housing; 7. Matching positioning boss; 8. Limit bracket; 9. Tightening spring; 10. Connecting shaft; 11. Clamping head; 12. Mounting plate; 13. Magnetic part. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] See also Figure 1-5 The utility model provides an embodiment: a motor cover installation and positioning structure of a micro motor, comprising a motor cover main body 1:

[0026] A limiting bracket 8 is arranged at the upper end of the motor cover body 1, and the limiting bracket 8 is fixedly connected to the motor cover body 1. A tightening spring 9 is installed at the upper end inside the limiting bracket 8. Installing the tightening spring 9 can push the clamping head 11 to move, so that one end of the clamping head 11 is clamped into the inside of the motor housing 6, and then the motor housing 6 is positioned, so that the motor housing 6 is connected and fixed to the motor cover body 1. The device adopts an internal connection form, which can isolate the connection between the motor cover body 1 and the motor housing 6 from the outside world, prevent the connection between the motor cover body 1 and the motor housing 6 from rusting, and at the same time make the connection strength of the device not affected by vibration under long-term use, enhance the stability of the device, and a connecting shaft 10 is arranged inside the tightening spring 9, one end of the connecting shaft 10 is installed with a mounting plate 12, one side of the mounting plate 12 is installed with a magnetic member 13, and the other end of the connecting shaft 10 is installed with a clamping head 11;

[0027] An assembly thread 2 is arranged at the upper end of the outside of the motor cover body 1. The outer annular array of the assembly thread 2 has six thread rings 4. A magnetic plate 5 is installed between the six adjacent thread rings 4. The installed magnetic plate 5 can cooperate with the thread ring 4 to move outside the motor cover body 1. When the magnetic plate 5 moves to the same level as the magnetic part 13, the magnetic plate 5 magnetically attracts the magnetic part 13, so that the magnetic part 13 drives the clamping head 11 to be pulled out from the inside of the motor housing 6 through the connecting shaft 10, making it easier to disassemble the device, facilitating the staff to repair the motor and enhancing the practicality of the device.

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the upper end annular array of the motor cover body 1 has six matching positioning bosses 7, and the six matching positioning bosses 7 are fixedly connected to the motor cover body 1. The matching positioning boss 7 can be positioned and matched with the motor housing 6, making the installation of the device more convenient. The upper end of the motor cover body 1 is equipped with a connecting boss 3, and the connecting boss 3 is fixedly connected to the motor cover body 1. One end of the tightening spring 9 is fixedly connected to the limit bracket 8. The limit bracket 8 is provided with six. The connecting shaft 10 is slidably connected to the limit bracket 8 through a slot, and the mounting plate 12 is fixedly connected to the connecting shaft 10. The magnetic member 13 is fixedly connected to the mounting plate 12, and the clamping head 11 is connected to the limit bracket 8 through a slot. The clamping head 11 is fixedly connected to the connecting shaft 10. The upper end of the motor cover body 1 is equipped with a motor housing 6, and the motor housing 6 is connected to the clamping head 11 through a slot. The six matching positioning bosses 7 are connected to the motor housing 6 through the slot, and the magnetic plate 5 is fixedly connected to the threaded ring 4, and the threaded ring 4 is matched with the assembly thread 2.

[0029] Working principle: When in use, the staff rotates the threaded ring 4 to move the magnetic plate 5 to the upper end of the motor cover body 1, so that the magnetic plate 5 magnetically attracts the magnetic part 13, and the magnetic part 13 drives the clamping head 11 to move through the connecting shaft 10, and then the staff aligns the device with the motor housing 6, so that the matching positioning boss 7 is aligned with the hole inside the motor housing 6, and then the staff fits the device with the motor housing 6, so that the matching positioning boss 7 is snapped into the inside of the motor housing 6, and then the staff rotates the threaded ring 4 to move the magnetic plate 5 to the lower end of the motor cover body 1, and then the magnetic plate 5 stops magnetically attracting the magnetic part 13, and then the clamping head 11 is snapped into the inside of the motor housing 6 under the action of the tightening spring 9, and the installation is completed. The tightening spring 9 installed in this device can push the clamping head 11 to move, so that one end of the clamping head 11 is snapped into the inside of the motor housing 6, and then The motor housing 6 is positioned so that the motor housing 6 is connected and fixed to the motor cover body 1. The device adopts an internal connection form, which can isolate the connection between the motor cover body 1 and the motor housing 6 from the outside world, prevent the connection between the motor cover body 1 and the motor housing 6 from rusting, and at the same time, the connection strength of the device is not affected by vibration under long-term use, thereby enhancing the stability of the device. The magnetic plate 5 can be installed to cooperate with the threaded ring 4 to move outside the motor cover body 1. When the magnetic plate 5 moves to the same level as the magnetic part 13, the magnetic plate 5 magnetically attracts the magnetic part 13, so that the magnetic part 13 drives the clamping head 11 to be pulled out from the inside of the motor housing 6 through the connecting shaft 10, making it easier to disassemble the device, which is convenient for the staff to repair the motor and enhances the practicality of the device. The matching positioning boss 7 can be positioned and matched with the motor housing 6, making the installation of the device more convenient.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A motor cover installation and positioning structure for a micro motor, comprising a motor cover body (1), characterized in that: A limit bracket (8) is arranged at the upper end of the motor cover body (1), the limit bracket (8) is fixedly connected to the motor cover body (1), a tension spring (9) is installed at the upper end of the limit bracket (8), a connecting shaft (10) is arranged inside the tension spring (9), a mounting plate (12) is installed at one end of the connecting shaft (10), a magnetic part (13) is installed on one side of the mounting plate (12), and a clamping head (11) is installed at the other end of the connecting shaft (10); An assembly thread (2) is arranged at the upper end of the outside of the motor cover body (1); the outer annular array of the assembly thread (2) has six thread rings (4); and magnetic plates (5) are installed between adjacent six thread rings (4).

2. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: The upper end of the motor cover body (1) has six matching positioning bosses (7) in a circular array, and the six matching positioning bosses (7) are fixedly connected to the motor cover body (1).

3. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: A connecting boss (3) is installed at the upper end of the motor cover main body (1), and the connecting boss (3) is fixedly connected to the motor cover main body (1).

4. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: One end of the tension spring (9) is fixedly connected to a limit bracket (8), and six limit brackets (8) are provided.

5. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: The connecting shaft (10) is slidably connected to the limiting bracket (8) via a slot, and the mounting plate (12) is fixedly connected to the connecting shaft (10).

6. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: The magnetic component (13) is fixedly connected to the mounting plate (12), the clamping head (11) is connected to the limiting bracket (8) via a clamping groove, and the clamping head (11) is fixedly connected to the connecting shaft (10).

7. The motor cover installation and positioning structure of a micro motor according to claim 2, characterized in that: A motor housing (6) is installed at the upper end of the motor cover body (1); the motor housing (6) is connected to the clamping head (11) via a slot; and the six matching positioning bosses (7) are connected to the motor housing (6) via the slot.

8. The motor cover installation and positioning structure of a micro motor according to claim 1, characterized in that: The magnetic plate (5) is fixedly connected to the threaded ring (4), and the threaded ring (4) is cooperatively connected to the assembly thread (2).

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