Stator shell and connecting cylinder integrated motor and fascia gun

Abstract

The utility model discloses a stator housing and connecting cylinder integrated motor and a fascia gun, the motor comprises a stator assembly and a rotor assembly, the stator assembly comprises a stator housing and a stator, the stator housing is integrally provided with a rotating shaft fixing cavity and a transmission cavity located at the lower end of the rotating shaft fixing cavity, and the side wall of the transmission cavity is integrally provided with a connecting cylinder; the rotor assembly comprises a rotor and a rotating shaft, the rotating shaft is installed in the rotating shaft fixing cavity through a bearing, the upper end of the rotating shaft is fixedly connected with the rotor, and the lower end of the rotating shaft extends into the transmission cavity. The fascia gun adopts the integrated motor, the integrality is better, and the assembly precision is higher. The rotating shaft fixing cavity and the transmission cavity are coaxial, so that the problem that the axis of the motor and the axis of the fascia gun are not concentric due to machining and assembly tolerance can be avoided, and the fascia gun runs more stably; and meanwhile, the axis of the transmission cavity is perpendicular to the axis of the connecting cylinder, shaking of the fascia gun during operation is reduced, and the use experience of a user is improved.

Description

Technical Field

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

[0002] The patent document with publication number CN115957117A discloses a piston device of a fascia gun and a fascia gun, in which a motor bracket and a piston sleeve (i.e., the connecting tube of the present application) are integrally formed, which solves the eccentricity problem caused by the separate manufacture and reassembly of the existing piston sleeve and motor bracket. However, after the motor is fixed to the motor bracket, it is locked in the outer shell of the fascia gun by screws, and the piston sleeve is also fixedly installed in the outer shell of the fascia gun. This structure has certain shortcomings. Due to the objective existence of machining tolerances and assembly tolerances, after the motor bracket is fixed, its axis will have a certain offset from the axis of the outer shell, thereby causing a corresponding offset between the axis of the piston sleeve and the axis of the connecting tube. This causes the vibration, noise, and friction of the motor during operation of the fascia gun. The user will feel uncomfortable when holding the fascia gun, which affects the user experience of the fascia gun. The user's experience is not perfect. At the same time, the offset problem also makes the working current of the motor large, resulting in serious heating of the body. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a motor and a fascia gun in which a stator housing and a connecting tube are integrated.

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

[0005] A motor with an integrated stator housing and a connecting cylinder comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a stator housing and a stator, wherein the stator housing is integrally formed with a rotating shaft fixing cavity and a transmission cavity located at the lower end of the rotating shaft fixing cavity, and a connecting cylinder is integrally formed on the side wall of the transmission cavity; the stator is fixed to the outer wall of the rotating shaft fixing cavity, and the rotor assembly comprises a rotor and a rotating shaft, wherein the rotating shaft is installed in the rotating shaft fixing cavity through a bearing, wherein the upper end of the rotating shaft is fixedly connected to the rotor, and the lower end extends into the transmission cavity.

[0006] The rotating shaft fixing cavity and the transmission cavity are coaxial.

[0007] The axis center of the transmission cavity is perpendicular to the axis center of the connecting tube.

[0008] A threaded connection portion is provided at the end of the connecting tube.

[0009] The lower end surface of the transmission cavity is provided with a fixing screw hole.

[0010] There are two bearings, which are respectively mounted at the upper and lower ends of the rotating shaft fixing cavity. The rotating shaft is provided with a retaining ring groove, in which a retaining ring tightly attached to the bearing at the lower end is mounted.

[0011] The outer wall of the transmission cavity is provided with a wiring groove.

[0012] A fascia gun comprises a motor with a stator housing and a connecting tube integrated therein, and also comprises a housing and a positioning ring, wherein the motor is installed in the housing, and one end of the positioning ring is provided with a threaded end, and the threaded end is threadedly connected to the threaded connecting part.

[0013] The inner wall of the shell is provided with a radial fixing ring, the fixing ring is provided with a fixing hole corresponding to the fixing screw hole, and fixing screws are installed in the fixing screw hole and the fixing hole.

[0014] The beneficial effects of the utility model are as follows: the utility model adopts an integrated motor structure, including a stator assembly and a rotor assembly, the stator assembly includes a stator housing and a stator, the stator housing is integrally formed with a rotating shaft fixing cavity and a transmission cavity located at the lower end of the rotating shaft fixing cavity, and the side wall of the transmission cavity is integrally formed with a connecting cylinder; the stator is fixed to the outer wall of the rotating shaft fixing cavity, the rotor assembly includes a rotor and a rotating shaft, the rotating shaft is installed in the rotating shaft fixing cavity through a bearing, the upper end of the rotating shaft is fixedly connected to the rotor, and the lower end extends into the transmission cavity. Among them, the rotating shaft fixing cavity and the transmission cavity are coaxial, which can avoid the problem of the motor axis and the fascia gun axis being out of center due to processing and assembly tolerances, making the fascia gun run more smoothly; at the same time, the axis of the transmission cavity is perpendicular to the axis of the connecting cylinder, which reduces the jitter of the fascia gun during operation and improves the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is the structural diagram of the motor;

[0017] Figure 2 It is the structural exploded diagram of the motor;

[0018] Figure 3 It is a structural cross-sectional view of the motor;

[0019] Figure 4 is a bottom-up schematic diagram of the stator housing;

[0020] Figure 5 This is a schematic diagram of the structure of the fascia gun;

[0021] Figure 6 This is an exploded diagram of the structure of the fascia gun;

[0022] Figure 7This is a partial structural cross-sectional view of the fascia gun;

[0023] Figure 8 This is a cross-sectional view of the structure where the motor is installed in the fascia gun;

[0024] Fig. 9 It is an exploded view of the transmission assembly. DETAILED DESCRIPTION

[0025] 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.

[0026] It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention.

[0027] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0028] Reference Figures 1 to 9 , a motor with a stator housing and a connecting cylinder integrated, comprising a stator assembly and a rotor assembly, wherein the stator assembly comprises a stator housing 1 and a stator 2, wherein the stator housing 1 is integrally formed with a rotating shaft fixing cavity 11 and a transmission cavity 12 located at the lower end of the rotating shaft fixing cavity 11, and the side wall of the transmission cavity 12 is integrally formed with a connecting cylinder 13; the stator 2 is fixed to the outer wall of the rotating shaft fixing cavity 11, and the rotor assembly comprises a rotor 3 and a rotating shaft 31, wherein the rotating shaft 31 is installed in the rotating shaft fixing cavity 11 through a bearing 4, wherein the upper end of the rotating shaft 31 is fixedly connected to the rotor 3, and the lower end extends into the transmission cavity 12. Among them, the rotating shaft fixing cavity 11 and the transmission cavity 12 are coaxial. It can avoid the problem of the motor axis and the fascia gun axis being out of center due to processing and assembly tolerances, so that the fascia gun can run more smoothly; at the same time, the axis of the transmission cavity 12 is perpendicular to the axis of the connecting cylinder 13, thereby reducing the shaking of the fascia gun during operation and improving the user's experience.

[0029] Specifically, 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 outer wall of the rotating shaft fixing cavity 11. In this embodiment, the stator core hole 21 and the rotating shaft fixing cavity 11 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.

[0030] The rotor 3 includes a rotor housing 33, in which a permanent magnet 34 is arranged. 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 33. The upper end of the shaft 31 is fixed in the shaft hole. The shaft hole and the shaft are connected and fixed by interference fit.

[0031] There are two bearings 4, which are respectively mounted at the upper and lower ends of the shaft fixing cavity 11. The shaft 31 is stabilized by the bearings 4, the coaxiality of the motor shaft is improved, and the shaft rotation is more stable. The shaft 31 is provided with a retaining spring groove 311, and a retaining spring 32 is installed in the retaining spring groove 311, which is closely attached to the bearing 4 at the lower end. The retaining spring 32 fixes the position of the shaft 31 to prevent the shaft 31 from slipping out of the shaft fixing cavity 11.

[0032] The end of the connecting tube 13 is provided with a threaded connection portion 14. The lower end surface of the transmission cavity 12 is provided with a fixing screw hole 15. The outer wall of the transmission cavity 12 is provided with a wiring groove 16.

[0033] A fascia gun adopts the motor, further comprising a housing 5 and a positioning ring 6, wherein the motor is installed in the housing 5, and one end of the positioning ring 6 is provided with a threaded end 61, and the threaded end 61 is threadedly connected to the threaded connection portion 14. A radial fixing ring 51 is provided on the inner wall of the housing 5, and a fixing hole 52 corresponding to the fixing screw hole 15 is provided on the fixing ring 51, and fixing screws are installed in the fixing screw hole 15 and the fixing hole 52. The assembly precision is high, the integrity is better, and the tolerance caused by processing and assembly is avoided.

[0034] Specifically, the housing 5 includes an upper cover 53 and a lower cover 54 . The upper cover 53 is installed on the top of the lower cover 54 . A side wall of the housing 5 is provided with an escape hole. After assembly, the connecting tube 13 is located in the escape hole.

[0035] The lower edge of the upper cover 53 is provided with an upper semicircular groove 55, and the upper edge of the lower cover 54 is provided with a lower semicircular groove 56, and the upper semicircular groove 55 and the lower semicircular groove 56 constitute the avoidance hole. The upper cover 53 and the lower cover 54 can be fixed by means of buckles or structural adhesives, and the assembly structure is simple.

[0036] In this embodiment, a massage cylinder 7 is sleeved in the positioning ring 6 , a transmission assembly 8 connected to the massage cylinder 7 is installed in the transmission cavity 12 , and the transmission assembly 8 is connected to the lower end of the rotating shaft 31 .

[0037] Specifically, the transmission assembly 8 is composed of an eccentric wheel 81 and a transmission rod 82. A shaft rod 811 extends from the bottom surface of the eccentric wheel 81. Circular portions 821 are provided at both ends of the transmission rod 82. A transmission bearing 83 is installed in the circular portion 821 close to the eccentric wheel 81. The shaft rod 811 penetrates into the axis of the transmission bearing 83 and is locked by a fixing screw. A massage bearing 84 is installed in the circular portion 821 close to the massage cylinder 7. A connecting screw is installed on the axis of the massage bearing 84 to connect the transmission rod 82 to the massage cylinder 7. The rotating shaft 31 penetrates into the socket 812 in the center of the eccentric wheel 81 to drive it to rotate. In order to prevent the transmission bearing 83 and the massage bearing 84 on the transmission rod from escaping from the annular portions 821 at both ends when the fascia gun is working, fixing screws and connecting screws are installed on the axis of the transmission bearing 83 and the massage bearing 84. In addition, this embodiment also installs a clamping bolt on the cross bar between the two annular portions 821, and uses the nut edge of the clamping bolt to clamp the transmission bearing 83 and the massage bearing 84, forming a double insurance to prevent the transmission bearing 83 and the massage bearing 84 from escaping from the annular portions 821 at both ends of the transmission rod 82.

[0038] A battery compartment is installed in the lower cover 54, and a battery for powering the motor is installed in the battery compartment; a detachable cover is also provided at the end of the battery compartment. In this embodiment, the battery and the motor are electrically connected through a wire, and after assembly, the wire is located on the wiring groove 16.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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 motor with a stator housing and a connecting tube integrated, characterized in that: The invention comprises a stator assembly and a rotor assembly, wherein the stator assembly comprises a stator housing (1) and a stator (2), the stator housing (1) being integrally formed with a rotating shaft fixing cavity (11) and a transmission cavity (12) located at the lower end of the rotating shaft fixing cavity (11), and a connecting cylinder (13) being integrally formed on the side wall of the transmission cavity (12); the stator (2) being fixed to the outer wall of the rotating shaft fixing cavity (11), and the rotor assembly comprising a rotor (3) and a rotating shaft (31), the rotating shaft (31) being installed in the rotating shaft fixing cavity (11) via a bearing (4), the upper end of the rotating shaft (31) being fixedly connected to the rotor (3), and the lower end of the rotating shaft (31) extending into the transmission cavity (12).

2. The motor with integrated stator housing and connecting tube according to claim 1, characterized in that The rotating shaft fixing cavity (11) and the transmission cavity (12) are coaxial.

3. The motor with integrated stator housing and connecting tube according to claim 1, characterized in that The axis center of the transmission chamber (12) is perpendicular to the axis center of the connecting cylinder (13).

4. The motor with integrated stator housing and connecting tube according to claim 1, characterized in that A threaded connection portion (14) is provided at the end of the connection tube (13).

5. The motor with integrated stator housing and connecting tube according to claim 1, characterized in that The lower end surface of the transmission cavity (12) is provided with a fixing screw hole (15).

6. The motor with integrated stator housing and connecting tube according to claim 1, characterized in that There are two bearings (4), which are respectively mounted at the upper and lower ends of the rotating shaft fixing cavity (11). The rotating shaft (31) is provided with a retaining spring groove (311), and a retaining spring (32) is mounted in the retaining spring groove (311) and is in close contact with the bearing (4) at the lower end.

7. The motor with the stator housing and the connecting tube integrated as claimed in claim 1, characterized in that The outer wall of the transmission cavity (12) is provided with a wiring groove (16).

8. A fascia gun, characterized in that A motor comprising a stator housing and a connecting cylinder integrated as described in any one of claims 1 to 7.

9. The fascia gun according to claim 8, characterized in that It also comprises a housing (5) and a positioning ring (6), the motor being mounted in the housing (5), one end of the positioning ring (6) being provided with a threaded end (61), the threaded end (61) being threadedly connected to a threaded connection portion (14).

10. The fascia gun according to claim 9, characterized in that The inner wall of the housing (5) is provided with a radial fixing ring (51), the fixing ring (51) is provided with a fixing hole (52) corresponding to the fixing screw hole (15), and fixing screws are installed in the fixing screw hole (15) and the fixing hole (52).

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