Vibration motor and electronic device

Abstract

This utility model discloses a vibration motor and an electronic device. The electronic device includes a cylindrical housing with a bottom wall and an annular side wall. The vibration motor includes a cuboid housing with an internal accommodating space, a mover assembly, a stator assembly, and an elastic element. The mover assembly and the stator assembly are located vertically spaced within the housing. The housing includes an upper shell with one open end and a first accommodating space, and a lower shell with a second accommodating space. The upper and lower shells are fitted together, and the first and second accommodating spaces combine to form the internal accommodating space. The mover assembly is connected and fixed to the upper shell through the elastic element and elastically supported within the first accommodating space. The stator assembly is fixed to the second accommodating space. The vibration motor is fixed to the bottom wall and adjacent to the inner wall of the side wall, with the lower shell facing the arc-shaped inner wall of the side wall. This utility model provides a higher structural adaptability between the vibration motor and the electronic device, improving the space utilization of the vibration motor within the electronic device.

Description

Technical Field

[0001] This utility model relates to the field of intelligent terminal electronic equipment technology, and in particular to a vibration motor and electronic equipment. Background Technology

[0002] With the development of electronic technology, portable consumer electronics products have gradually occupied the global consumer market, such as smartphones and smart wearable devices. These electronic products generally use linear vibration motors for haptic feedback, such as incoming call notifications on mobile phones and vibration feedback in game consoles. To meet such a wide range of applications, the miniaturization requirements for linear vibration motors are becoming increasingly stringent.

[0003] Existing linear vibration motors typically include a housing with a accommodating space, an oscillator, a stator, and springs. The housing includes a shell and cover that fit and snap together. The oscillator, stator, and springs are housed within the accommodating space. The oscillator includes a mass block and a magnet. The stator assembly includes a circuit board containing coils and a power supply coil. Existing linear vibration motors convert electrical energy into linear motion mechanical energy. The oscillator vibrates by causing the magnet to move through the repulsion or attraction of the coils. However, when existing linear vibration motors are installed in specific locations within circular electronic products, especially at the edges, the housing's fit with the internal space of the electronic product is poor, resulting in low space utilization. Therefore, there is an urgent need for a compact linear vibration motor to solve the technical problem of low space utilization when installed within electronic products. Utility Model Content

[0004] To overcome the problem of poor space utilization when installing vibration motors within electronic devices in existing technologies, this utility model proposes a vibration motor and an electronic device. The specific technical solution is as follows:

[0005] A vibration motor includes a cuboid housing with an internal accommodating space, a mover assembly, a stator assembly, and an elastic element. The mover assembly and the stator assembly are located vertically spaced within the housing. The housing includes an upper shell with one end open and having a first accommodating space, and a lower shell with a second accommodating space. The upper shell and the lower shell are fitted together to form the internal accommodating space, which is formed by combining the first accommodating space and the second accommodating space. The mover assembly is connected and fixed to the upper shell through the elastic element and elastically supported within the first accommodating space. The stator assembly is fixed to the second accommodating space.

[0006] Preferably, the lower shell is integrally stamped from a plate-shaped metal material, including a cuboid first mounting groove protruding outward from the internal accommodating space, a flange integrally bent vertically outward from the free end edge of the first mounting groove, and a notch opened on the long side of the first mounting groove.

[0007] Preferably, the stator assembly includes a coil and a flexible circuit board, the flexible circuit board including an internal power terminal and an external power terminal integrally formed with the internal power terminal.

[0008] Preferably, the height of the notch is consistent with the depth of the first mounting groove; the shape of the flange is adapted to the upper shell.

[0009] Preferably, a positioning boss protrudes from the center of the inner surface of the first mounting groove toward the internal accommodating space.

[0010] Preferably, the first mounting groove forms the second accommodating space, the coil and the internal power terminal are fixed in the first mounting groove, and the external power terminal extends out of the housing from the notch.

[0011] Preferably, a second mounting groove protrudes outward from the center of the inner surface of the first mounting groove toward the lower shell.

[0012] Preferably, the height of the notch is the sum of the depths of the first mounting groove and the second mounting groove.

[0013] Preferably, the first mounting slot and the second mounting slot form the second accommodating space, the coil is fixed in the first mounting slot, and the internal power terminal is fixed in the second mounting slot.

[0014] An electronic device includes a cylindrical housing and a vibration motor. The housing includes a circular bottom wall and an annular side wall. The vibration motor is fixed to the bottom wall and adjacent to the inner wall of the side wall. A first mounting groove protrudes toward the arc-shaped inner wall of the side wall.

[0015] Compared with the prior art, this utility model provides a vibration motor with a simple structure and optimized internal space, making the vibration motor's external structure more compact. The vibration motor is installed at the edge of the electronic device. By adapting the novel structure of the lower shell of the vibration motor to the electronic device, the space utilization rate of the vibration motor within the electronic device is improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the vibration motor and electronic equipment of this utility model.

[0017] Figure 2 This is a perspective view of the vibration motor according to the first embodiment.

[0018] Figure 3 It is along Figure 2 Cross-sectional view of line AA in the middle.

[0019] Figure 4 This is an exploded view of the stator assembly and lower shell of the first embodiment.

[0020] Figure 5 This is a perspective view of the vibration motor according to the second embodiment.

[0021] Figure 6 This is an exploded view of the structure of the vibration motor according to the second embodiment.

[0022] Figure 7 This is an exploded view of the stator assembly and lower shell of the second embodiment.

[0023] in:

[0024] 1000-Vibration Motor;

[0025] 1-Upper shell;

[0026] 2-Lower shell; 20-First mounting slot; 201-Notch; 202-Positioning boss; 203-Second mounting slot;

[0027] 21-Flange;

[0028] 3-Motor assembly; 30-Mass block; 31-Magnet;

[0029] 4-Stator assembly; 40-Coil; 41-Flexible circuit board; 410-Internal power terminal; 411-External power terminal;

[0030] 5-Elastic element;

[0031] 2000 - Electronic equipment; 2001 - Bottom wall; 2002 - Side wall. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This utility model discloses an installation structure for a vibration motor and electronic device, as follows: Figure 1As shown, the vibration motor 1000 is installed inside the electronic device 2000. The electronic device 2000 includes a cylindrical housing (not shown), which includes a circular bottom wall 2001 and an annular side wall 2002. The vibration motor 1000 is fixed on the bottom wall 2001 and adjacent to the inner wall of the side wall 2002. The first mounting groove 20 protrudes towards the arc-shaped inner wall of the side wall 2002, which not only makes the external structure of the vibration motor 1000 more compact and facilitates the miniaturization of the vibration motor 1000, but also fully improves the space utilization of the vibration motor 1000 within the electronic device 2000 by adapting the first mounting groove 20 for fixing the stator assembly 4 to the arc-shaped inner wall of the side wall 2002 of the electronic device 2000.

[0034] The structure of the vibration motor 1000 in the first embodiment of this utility model is as follows: Figures 2 to 4 As shown, the device includes a cuboid shell (not shown) with an internal accommodating space (not indicated), a mover assembly 3, a stator assembly 4, and an elastic element 5. The mover assembly 3 and the stator assembly 4 are located vertically spaced within the shell. The shell includes an upper shell 1 with one end open and a first accommodating space (not indicated) and a lower shell 2 with a second accommodating space (not indicated). The upper shell 1 and the lower shell 2 are fitted together to form the internal accommodating space, which is composed of the first accommodating space and the second accommodating space. The mover assembly 3 is connected and fixed to the upper shell 1 through the elastic element 4 and is elastically supported within the first internal accommodating space. The stator assembly 4 is fixed to the second accommodating space.

[0035] Both the upper shell 1 and the lower shell 2 are integrally stamped from sheet metal. The lower shell 2 includes a cuboid first mounting groove 20 protruding outward from the internal accommodating space, a flange 21 integrally bent vertically outward from the free end edge of the first mounting groove 20, and a notch 201 opened on the long side of the first mounting groove 20. A positioning boss 202 protrudes from the center of the inner surface of the first mounting groove 20 towards the internal accommodating space. The height of the notch 201 is consistent with the depth of the first mounting groove 20. The shape of the flange 21 is adapted to the upper shell 1 to achieve welding fixation between the upper shell 1 and the lower shell 2. In this embodiment, the first mounting groove 20 forms a second accommodating space.

[0036] The stator assembly 4 includes a coil 40 and a flexible circuit board 41. The coil 40 is bonded and fixed to the flexible circuit board 41. The flexible circuit board 41 includes an internal power terminal 410 and an external power terminal 411 integrally formed with the internal power terminal 410. The coil 40 and the internal power terminal are fixed in the first mounting groove 20. The external power terminal 411 extends out of the housing 1 through the notch 201 to connect to an external power source. Specifically, the internal power terminal 410 has a through hole (not shown). The positioning boss 202 is adapted to the through hole of the internal power terminal 410 and the inner ring of the coil 40 respectively to achieve pre-positioning of the stator assembly 4 in the first mounting groove 20 before it is bonded and fixed to the lower housing 2. The mover assembly 3 includes a mass block 30 and a magnet 31 embedded in the mass block 30. The magnet 31 is arranged at intervals corresponding to the coil 40.

[0037] The structure of the vibration motor 1000 in the second embodiment of this utility model is as follows: Figures 5 to 7 As shown, as an alternative to the first embodiment, a second mounting groove 203 protrudes outward from the center of the inner surface of the first mounting groove 20 towards the lower shell. The height of the notch 201 is the sum of the depths of the first mounting groove 20 and the second mounting groove 203. The coil 40 is fixed in the first mounting groove 20, and the internal power terminal 410 is fixed in the second mounting groove 203. Specifically, the shape of the coil 40 is adapted to the first mounting groove 20, and the shape of the internal power terminal 410 is adapted to the second mounting groove 203, so as to achieve pre-positioning of the stator assembly 4 before bonding and fixing to the lower shell 2. In this embodiment, the first mounting groove 20 and the second mounting groove 203 form a second accommodating space. The first mounting groove 20 and the second mounting groove 203 form a stepped protrusion, so that the outward protrusion structure of the lower shell 2 is more adapted to the arc-shaped inner wall of the side wall 2002 of the electronic device 2000, and can more fully improve the space utilization rate of the vibration motor 1000 in the electronic device 2000.

[0038] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "horizontal direction", "vertical direction", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibration motor comprising a cuboid case having an internal accommodation space, a mover assembly, a stator assembly and an elastic member, the mover assembly and the stator assembly being spaced apart vertically in the case, characterized in that, The housing includes an upper shell with one end open and having a first accommodating space and a lower shell with a second accommodating space. The upper shell and the lower shell are fitted together to form the internal accommodating space. The internal accommodating space is composed of the first accommodating space and the second accommodating space. The moving part assembly is connected and fixed to the upper shell through the elastic element and is elastically supported in the first accommodating space. The stator assembly is fixed to the second accommodating space.

2. The vibrating motor of claim 1, wherein The lower shell is integrally stamped from a plate-shaped metal material and includes a cuboid first mounting groove protruding outward from the internal accommodating space, a flange integrally bent vertically outward from the free end edge of the first mounting groove, and a notch opened on the long side of the first mounting groove.

3. The vibrating motor of claim 2, wherein The stator assembly includes a coil and a flexible circuit board, the flexible circuit board including an internal power terminal and an external power terminal integrally formed with the internal power terminal.

4. The vibrating motor of claim 2, wherein The height of the notch is the same as the depth of the first mounting groove; the shape of the flange is adapted to the upper shell.

5. The vibrating motor of claim 3, wherein A positioning boss protrudes from the center of the inner surface of the first mounting groove toward the internal accommodating space.

6. The vibrating motor of claim 5, wherein The first mounting slot forms the second accommodating space, the coil and the internal power terminal are fixed in the first mounting slot, and the external power terminal extends out of the housing from the notch.

7. The vibrating motor of claim 3, wherein A second mounting groove protrudes outward from the center of the inner surface of the first mounting groove toward the lower shell.

8. The vibrating motor of claim 7, wherein The height of the notch is the sum of the depths of the first mounting slot and the second mounting slot.

9. The vibrating motor of claim 8, wherein, The first mounting slot and the second mounting slot form the second accommodating space. The coil is fixed in the first mounting slot, and the internal power terminal is fixed in the second mounting slot.

10. An electronic device, comprising a cylindrical housing, characterized in that, It also includes the vibration motor according to any one of claims 1-9, wherein the housing includes a circular bottom wall and an annular side wall, the vibration motor is fixed on the bottom wall and adjacent to the inner wall of the side wall, and the first mounting groove protrudes toward the arc-shaped inner wall of the side wall.

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