Fascia gun power mechanism with motor shell serving as machine body

Abstract

The utility model discloses a fascia gun power mechanism with a motor shell serving as a machine body, which comprises the shell, a stator, a rotor and a rotating shaft, a transverse partition plate is arranged in the shell and divides the interior of the shell into a stator cavity and a transmission cavity, the partition plate is provided with a rotating shaft cavity, the stator cavity and the rotating shaft cavity are coaxial, the stator is mounted in the stator cavity, and the rotor is mounted in the transmission cavity. According to the utility model, the integrated design is adopted, and the shell is not only a motor shell, but also a part of a fascia gun body, so that the integrity of the fascia gun is improved; the problem that the axis of the motor and the axis of the fascia gun are not concentric due to machining tolerance or assembly tolerance is solved, the fascia gun runs more stably, and the experience feeling of a user is improved.

Description

Technical Field

[0001] The utility model relates to a massage device, in particular to a fascia gun. Background Art

[0002] The patent document with publication number CN115957117A discloses a piston device and a fascia gun, wherein the motor is fixed to the motor bracket and screwed into the motor cavity of the fascia gun housing. However, this structure has certain shortcomings. Due to the objective existence of machining tolerance and assembly tolerance, the axis of the motor bracket will be offset from the axis of the housing after it is fixed. This causes the motor to vibrate greatly during the operation of the fascia gun, and the user will feel uncomfortable when holding the fascia gun, which affects the user experience of the fascia gun, and the user experience is not perfect. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a fascia gun power mechanism in which a motor housing also serves as a body.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A fascia gun power mechanism with a motor housing serving as a body, comprising a housing, a stator, a rotor and a rotating shaft, wherein a battery compartment fixing structure for fixing the battery compartment is provided at the lower end of the housing, and a cover plate fixing structure for fixing the cover plate is provided at the upper end, a transverse partition plate is provided in the housing to divide the interior of the housing into a stator cavity and a transmission cavity, a rotating shaft cavity extending downward is provided at the center of the partition plate, and the stator cavity and the rotating shaft cavity are coaxial; the stator is installed in the stator cavity, and the lower end of the rotating shaft is fixedly connected to the lower end of the rotor; the rotating shaft is installed in the rotating shaft cavity through a bearing, and the top of the rotating shaft extends into the transmission cavity.

[0006] As a further improvement of the present invention, the shell and the partition plate are integrally formed.

[0007] As a further improvement of the present invention, the partition plate and the shaft cavity are integrally formed.

[0008] Furthermore, the stator comprises a stator core and a stator winding embedded in the stator core, a stator core hole is arranged at the center of the stator core, and the stator core hole is sleeved on the rotating shaft cavity.

[0009] Furthermore, the rotor comprises a rotor shell, a permanent magnet is arranged in the rotor shell, a shaft hole is arranged at the center of the rotor shell, and the lower end of the shaft is fixed in the shaft hole.

[0010] Furthermore, a bearing cavity is respectively provided at the upper end and the lower end of the rotating shaft cavity, and there are two bearings, one is installed in the bearing cavity at the upper end of the rotating shaft cavity, and the other is installed in the bearing cavity at the lower end of the rotating shaft cavity.

[0011] Furthermore, a retaining ring groove is provided on the side wall of the rotating shaft, a retaining ring is installed in the retaining ring groove, and the retaining ring is tightly attached to the upper surface of the bearing located in the upper end bearing cavity.

[0012] The beneficial effect of the utility model is that the utility model adopts an integrated design, and the outer shell is both a motor shell and a part of the fascia gun body, which improves the integrity of the fascia gun, avoids the problem of the motor axis and the fascia gun axis being out of center due to processing tolerance or assembly tolerance, makes the fascia gun run more smoothly, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a cross-sectional view of the utility model.

[0016] Figure 3 Exploded sectional view of the utility model.

[0017] Figure 4 It is one of the exploded schematic diagrams of the utility model.

[0018] Figure 5 This is the second exploded schematic diagram of the present utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0020] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0021] Reference Figures 1 to 5A fascia gun power mechanism with a motor housing serving as a body, comprising a housing 1, a stator 2, a rotor 3 and a rotating shaft 4. The lower end of the housing 1 is provided with a battery compartment fixing structure for fixing the battery compartment, and the upper end is provided with a cover plate fixing structure for fixing the cover plate. A transverse partition plate 11 is provided inside the housing 1 to divide the interior of the housing 1 into a stator cavity 12 and a transmission cavity 13. The housing 1 and the partition plate 11 are integrally formed; a rotating shaft cavity 14 extending downward is provided at the center of the partition plate 11. The stator cavity 12 and the rotating shaft cavity 14 are coaxial. The partition plate 11 It is integrally formed with the rotating shaft cavity 14; the stator 2 is installed in the stator cavity 12, and the lower end of the rotating shaft 4 is fixedly connected to the lower end of the rotor 3; the rotating shaft 4 is installed in the rotating shaft cavity 14 through the bearing 5, and the top of the rotating shaft 4 extends into the transmission cavity 13; the utility model adopts an integrated design, and the outer shell is both a motor shell and a part of the fascia gun body, which improves the integrity of the fascia gun and avoids the problem of non-concentricity between the motor axis and the fascia gun axis due to processing tolerance or assembly tolerance, so that the fascia gun runs more smoothly and improves the user experience.

[0022] The stator 2 includes a stator core and a stator winding embedded in the stator core. A stator core hole 21 is provided at the center of the stator core, and the stator core hole 21 is sleeved on the shaft cavity 14. The stator core hole and the shaft cavity can be connected and fixed by a commonly used interference fit method, or by a commonly used method such as adding a fixing ring, or by a commonly used method such as structural adhesive.

[0023] The rotor 3 includes a rotor housing 31, and a permanent magnet 32 ​​is arranged in the rotor housing 31. In the present embodiment, the permanent magnet is a magnetic ring. In addition, it can also be other magnetic parts such as magnetic sheets and magnetic steel. A shaft hole is arranged at the center of the rotor housing 31. The lower end of the shaft 4 is fixed in the shaft hole. The shaft hole and the shaft are connected and fixed by interference fit.

[0024] A bearing cavity 15 is respectively provided at the upper and lower ends of the rotating shaft cavity 14. There are two bearings 5, one is installed in the bearing cavity 15 at the upper end of the rotating shaft cavity 14, and the other is installed in the bearing cavity 15 at the lower end of the rotating shaft cavity 14. The bearings stabilize the rotating shaft, improve the coaxiality of the motor rotating shaft, and make the rotating shaft rotate more stably.

[0025] The side wall of the rotating shaft 4 is provided with a retaining ring groove 41, in which a retaining ring 42 is installed, and the retaining ring 42 is closely attached to the upper surface of the bearing 5 located in the upper end bearing cavity 15. The retaining ring fixes the position of the rotating shaft to prevent the rotating shaft from slipping out of the rotating shaft cavity.

[0026] In the present invention, the term "plurality" means two or more than two, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "connect" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0028] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fascia gun power mechanism with a motor housing serving as a body, comprising a housing (1), a stator (2), a rotor (3) and a rotating shaft (4), characterized in that: A battery compartment fixing structure for fixing the battery compartment is provided at the lower end of the housing (1), and a cover plate fixing structure for fixing the cover plate is provided at the upper end. A transverse partition plate (11) is provided inside the housing (1) to divide the interior of the housing (1) into a stator cavity (12) and a transmission cavity (13). A rotating shaft cavity (14) extending downward is provided at the center of the partition plate (11). The stator cavity (12) and the rotating shaft cavity (14) are coaxial. The stator (2) is mounted in the stator cavity (12), and the lower end of the rotating shaft (4) is fixedly connected to the lower end of the rotor (3). The rotating shaft (4) is mounted in the rotating shaft cavity (14) via a bearing (5), and the top of the rotating shaft (4) extends into the transmission cavity (13).

2. The fascia gun power mechanism with the motor housing also serving as the body according to claim 1 is characterized in that: The outer shell (1) and the partition plate (11) are integrally formed.

3. The fascia gun power mechanism with the motor housing also serving as the body according to claim 1 or 2, characterized in that: The partition plate (11) and the rotating shaft cavity (14) are integrally formed.

4. The fascia gun power mechanism with the motor housing also serving as the body according to claim 1 is characterized in that: The stator (2) comprises a stator core and a stator winding embedded in the stator core, a stator core hole (21) is provided at the center of the stator core, and the stator core hole (21) is sleeved on the rotating shaft cavity (14).

5. The fascia gun power mechanism with the motor housing also serving as the body according to claim 1 is characterized in that: The rotor (3) comprises a rotor housing (31), a permanent magnet (32) is arranged in the rotor housing (31), a shaft hole is arranged at the center of the rotor housing (31), and the lower end of the shaft (4) is fixed in the shaft hole.

6. The fascia gun power mechanism with the motor housing also serving as the body according to claim 1 is characterized in that: A bearing cavity (15) is provided at the upper end and the lower end of the rotating shaft cavity (14), respectively. There are two bearings (5), one of which is installed in the bearing cavity (15) at the upper end of the rotating shaft cavity (14), and the other is installed in the bearing cavity (15) at the lower end of the rotating shaft cavity (14).

7. The fascia gun power mechanism with the motor housing also serving as the body according to claim 6 is characterized in that: A retaining ring groove (41) is provided on the side wall of the rotating shaft (4), a retaining ring (42) is installed in the retaining ring groove (41), and the retaining ring (42) is tightly attached to the upper surface of the bearing (5) located in the upper end bearing cavity (15).

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