Massage device
By designing a massage device including coil, coil stand, central axis, permanent magnet and piston, the problem of high noise in existing massage devices is solved, and the massage effect of low noise, high life and high comfort is achieved.
Patent Information
- Application Number
- CN202420549371.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-20
AI Technical Summary
When existing massage equipment realizes movements such as imitating hand pressing and slapping, they use an electric actuator with an electromagnet structure, which is very noisy and affects the comfort of use.
A massage device is designed including a housing, a coil, a coil frame, a central shaft, a permanent magnet and a piston. The coil frame is arranged on the outside of the permanent magnet. When powered on, the permanent magnet drives the central axis to reciprocate, and the piston moves up and down the inner wall of the chamber to achieve massage effect.
Through precise central axis and permanent magnet movement, noise is reduced, device life is extended, and comfort is improved.
Smart Images
Figure CN222549629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric tools, and more specifically, to a massage device. Background Art
[0002] With the improvement of living standards and the increase of people's life and work pressure, various health massage equipment products are becoming more and more popular. Most of the existing massage equipment products use electric actuators with electromagnet structures to achieve near-linear movements such as pressing and patting by human hands. These electric actuators usually have high noise, which affects the comfort of use. Utility Model Content
[0003] One purpose of the utility model is to provide a massage device to solve the problems of the background technology.
[0004] According to one aspect of the utility model, a massage device is provided, comprising: a shell, a coil, a coil frame, a central axis, a permanent magnet and a piston; a first chamber and a second chamber are formed in the shell, the shell is provided with a first assembly hole at one end of the first chamber, the edge of the first assembly hole is provided with a hub structure protruding toward the first chamber, and a working port is provided at one end of the second chamber; the coil frame matches the shape of the first chamber and is fixed in the first chamber along the inner wall of the shell, the coil is wound on the coil frame, and the coil frame is provided with a second assembly hole on a side close to the second chamber. two assembly holes; the permanent magnet is fixed on the central shaft, and a gap is left between the permanent magnet and the coil frame, the first end of the central shaft is inserted into the first assembly hole, and the second end passes through the second assembly hole and extends into the second chamber, and the piston is fixed on the second end of the central shaft; when the coil is energized, the central shaft can reciprocate along the axis of the coil frame with the permanent magnet, so that the piston can move along the inner wall of the second chamber away from or close to the working port, and within the effective stroke of the piston, the first end of the central shaft is always located in the hub structure.
[0005] Optionally, the housing comprises a shell and an end cover, the end cover is disposed on the shell and is close to the first chamber, and the end cover is provided with the first assembly hole;
[0006] A partition bracket is provided on the inner side of the shell at a partition between the first chamber and the second chamber, a third assembly hole is provided on the partition bracket, and the second assembly hole is located opposite to the third assembly hole.
[0007] Optionally, the massage device further comprises a first magnetic conductive sheet and a second magnetic conductive sheet, the permanent magnet is sandwiched between the first magnetic conductive sheet and the second magnetic conductive sheet, and the first magnetic conductive sheet is close to the first assembly opening, and the second magnetic conductive sheet is close to the second assembly opening;
[0008] The centers of the first magnetic conductive sheet and the permanent magnet are also provided with avoidance holes, and within the effective stroke of the central axis, the hub structure is always inserted into the avoidance hole.
[0009] Optionally, the piston has a maximum stroke and a minimum stroke, when the maximum stroke is reached, the piston is closest to the working port, and when the minimum stroke is reached, the piston is farthest from the working port;
[0010] The hub structure is also provided with a limiting step, and when the first magnetic conductive sheet is in contact with the limiting step, the piston is located at the position of the minimum stroke.
[0011] Optionally, elastic members are provided on both the first magnetic conductive sheet and the second magnetic conductive sheet, and when the piston is located at the position of the maximum stroke or the minimum stroke, the elastic members are in a compressed state.
[0012] Optionally, the coil frame and the end cover are both made of plastic.
[0013] Optionally, a piston ring is arranged between the piston and the inner wall of the shell, and the piston ring is made of plastic or rubber material.
[0014] Optionally, a circuit board is further included, and the circuit board is arranged on the outside of the end cover, and the coil is connected to the circuit board.
[0015] Optionally, the coils are provided in multiple groups, and the multiple groups of coils are connected in series or in parallel.
[0016] One technical effect of the utility model is that the utility model arranges the coil frame outside the permanent magnet, so that when the coil is energized, the permanent magnet can drive the central axis to reciprocate, and then drive the piston to reciprocate, thereby achieving a massage effect.
[0017] In the above working process, the first assembly hole and the second assembly hole jointly play a role of radial constraint on the central axis, and the cooperation of the hub structure can guide the sliding of the central axis, so that the reciprocating motion trajectory of the central axis and the permanent magnet is accurate, and there is no interference between the moving parts and the fixed parts, so the noise is small, the service life is long, and the comfort of use is improved.
[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.
[0020] Figure 1 This is one of the internal structure schematic diagrams of a mounting device provided by the utility model.
[0021] Figure 2 This is the second schematic diagram of the internal structure of a mounting device provided by the utility model.
[0022] Figure 3 This is one of the appearance structure schematic diagrams of a mounting device provided by the utility model.
[0023] Figure 4 This is the second schematic diagram of the appearance structure of a mounting device provided by the utility model.
[0024] Description of reference numerals:
[0025] 1. End cover; 11. First assembly hole; 12. Hub structure; 13. Limiting step; 14. Circuit board; 2. Shell; 21. Working port; 22. First chamber; 23. Second chamber; 3. Coil; 4. Coil frame; 5. Piston; 6. Center axis; 7. First magnetic conductive sheet; 8. Permanent magnet; 81. Avoidance hole; 9. Second magnetic conductive sheet; 10. Piston ring. DETAILED DESCRIPTION
[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.
[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
[0028] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.
[0029] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0030] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0031] like Figures 1 to 4 As shown, according to one aspect of the utility model, a massage device is provided, comprising: a shell, a coil 3, a coil frame 4, a central axis 6, a permanent magnet 8 and a piston 5; a first chamber 22 and a second chamber 23 are formed in the shell, and the shell is provided with a first assembly hole 11 at one end of the first chamber 22, and the edge of the first assembly hole 11 is provided with a hub structure 12 protruding toward the first chamber 22, and a working port 21 is provided at one end of the second chamber 23; the coil frame 4 matches the shape of the first chamber 22 and is fixed in the first chamber 22 along the inner wall of the shell, the coil 3 is wound on the coil frame 4, and the coil frame 4 is close to the second chamber 23. A second assembly hole is provided on one side; the permanent magnet 8 is fixed on the central shaft 6, and a gap is left between the permanent magnet 8 and the coil frame 4, the first end of the central shaft 6 is inserted into the first assembly hole 11, and the second end passes through the second assembly hole and extends into the second chamber 23, and the piston 5 is fixed on the second end of the central shaft 6; when the coil 3 is energized, the central shaft 6 can reciprocate along the axis of the coil frame 4 with the permanent magnet 8, so that the piston 5 can move along the inner wall of the second chamber 23 in a direction away from or close to the working port 21, and within the effective stroke of the piston 5, the first end of the central shaft 6 is always located in the hub structure 12.
[0032] Specifically, in this embodiment, when the coil 3 is powered on, by controlling the direction of the current, the permanent magnet 8 is subjected to a force of alternating direction under the action of the alternating magnetic field, and can generate movement along the axis direction of the coil 3, thereby enabling the central shaft 6 to slide back and forth between the first assembly hole 11 and the second assembly hole along the axis direction of the coil 3 driven by the permanent magnet 8. The reciprocating sliding of the central shaft 6 enables the piston 5 located in the second chamber 23 to move back and forth along the inner wall of the second chamber 23, and by approaching or moving away from the working port 21, the part between the working port 21 and the piston 5 in the second chamber 23 can generate positive pressure or negative pressure, so as to transmit the movement of the piston 5, thereby realizing the massage function.
[0033] In the above working process, since the center shaft 6 will not be separated from the hub structure 12 within the effective stroke of the center shaft 6, on the one hand, the first assembly hole 11 and the second assembly hole can jointly play a radial constraint role on the center shaft 6, and on the other hand, the cooperation of the hub structure 12 can guide the sliding of the center shaft 6, so that the reciprocating motion trajectory of the center shaft 6 and the permanent magnet 8 is more accurate, and there will be no interference between the moving parts and the fixed parts, so that there are fewer locations where noise is generated, so the noise is small, the service life is long, and the comfort of using the massage device is improved. Among them, the effective stroke of the center shaft 6 is the working stroke of the piston 5.
[0034] like Figures 1 to 4 As shown, optionally, the shell includes a shell body 2 and an end cover 1, the end cover 1 is covered on the shell body 2 and is close to the first chamber 22, and the first assembly hole 11 is provided on the end cover 1; a partition bracket is provided on the inner side of the shell body 2 at the partition between the first chamber 22 and the second chamber 23, and a third assembly hole is provided on the partition bracket, and the position of the second assembly hole is opposite to the third assembly hole.
[0035] Specifically, in this embodiment, the housing is divided into an end cover 1 and a housing 2, which is convenient for manufacturing and for disassembly and assembly in subsequent maintenance. The separation bracket can separate the first chamber 22 and the second chamber 23, and can also support the coil frame 4 to improve the stability of the structure and further reduce the working noise.
[0036] like Figure 1 to Figure 2 As shown, optionally, the massage device also includes a first magnetic conductive sheet 7 and a second magnetic conductive sheet 9, and the permanent magnet 8 is sandwiched between the first magnetic conductive sheet 7 and the second magnetic conductive sheet 9, and the first magnetic conductive sheet 7 is close to the first assembly port, and the second magnetic conductive sheet 9 is close to the second assembly port; an avoidance hole 81 is also provided in the center of the first magnetic conductive sheet 7 and the permanent magnet 8, and within the effective stroke of the central axis 6, the hub structure 12 is always inserted into the avoidance hole 81.
[0037] Specifically, in this embodiment, the permanent magnet 8 is usually made of brittle and fragile materials. The first magnetic conductive sheet 7 and the second magnetic conductive sheet 9 are provided to reduce the installation difficulty of the permanent magnet 8 on the one hand, and also provide a certain protection for the permanent magnet 8 on the other hand, thereby avoiding magnetic leakage and increasing the service life. In actual production, the second magnetic conductive sheet 9 can be assembled on the central shaft 6, and then the permanent magnet 8 can be fixed on the second magnetic conductive sheet 9, and finally the first magnetic conductive sheet 7 can be fixed on the other end of the permanent magnet 8. Among them, the magnetic conductive sheets are all made of soft magnetic materials.
[0038] Furthermore, a avoidance hole 81 is provided on the first magnetic conductive sheet 7 and the permanent magnet 8, so that during the reciprocating movement of the central shaft 6, the hub structure 12 can be inserted into the avoidance hole 81, and the axial dimension of the entire massage device is reduced under the premise that the effective stroke of the central shaft 6 remains unchanged, thereby realizing the miniaturization of the device. Among them, the size of the avoidance hole 81 matches the outer diameter of the hub structure 12, which can play a certain guiding role, thereby further improving the stability of the reciprocating movement of the central shaft 6 and the permanent magnet 8.
[0039] like Figure 1 to Figure 2As shown, optionally, the piston 5 has a maximum stroke and a minimum stroke, when the maximum stroke is reached, the piston 5 is closest to the working port 21, and when the minimum stroke is reached, the piston 5 is farthest from the working port 21; a limiting step 13 is also provided on the hub structure 12, and when the first magnetic conductive sheet 7 contacts the limiting step 13, the piston 5 is located at the position of the minimum stroke. The setting of the limiting step 13 makes it more convenient to adjust the effective stroke of the central shaft 6.
[0040] Optionally, elastic members are provided on both the first magnetic conductive sheet 7 and the second magnetic conductive sheet 9 , and when the piston 5 is located at the position of the maximum stroke or the minimum stroke, the elastic members are in a compressed state.
[0041] Specifically, in this embodiment, the elastic member can be selected from objects with a buffering effect such as springs and rubber to reduce the collision between the piston 5 and components such as the housing at the maximum position and the minimum position, thereby further reducing the working noise.
[0042] Optionally, the coil frame 4 and the end cover 1 are both made of plastic. By utilizing the self-lubricating property of plastic, friction and wear can be further reduced, thereby reducing noise and prolonging service life.
[0043] Alternatively, if Figure 1 to Figure 2 As shown, a piston ring 10 is arranged between the piston 5 and the inner wall of the housing. The piston ring 10 is made of plastic or rubber material to increase sealing performance and wear resistance.
[0044] Alternatively, if Figure 4 As shown, it also includes a circuit board 14, which is arranged on the outside of the end cover 1, and the coil 3 is connected to the circuit board 14. The circuit board 14 can control the current in the coil 3. During the movement of the central axis 6, whenever the moving part (such as the permanent magnet 8) is about to hit the fixed part (such as the housing, the coil frame 4, etc.), the current direction or current size in the coil 3 is changed to avoid collision, thereby reducing noise and extending the service life.
[0045] Optionally, the coils 3 are provided in multiple groups, and the multiple groups of coils 3 are connected in series or in parallel. The actual number of coils 3 can be designed according to actual needs, and the utility model does not limit this.
[0046] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.
[0047] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.
Claims
1. A massage device, characterized in that: include: Housing, coil, coil frame, center shaft, permanent magnet and piston; A first chamber and a second chamber are formed in the shell, a first assembly hole is provided at one end of the first chamber, a hub structure protruding toward the first chamber is provided at the edge of the first assembly hole, and a working port is provided at one end of the second chamber; The coil frame matches the shape of the first chamber and is fixed in the first chamber along the inner wall of the shell. The coil is wound on the coil frame. The coil frame is provided with a second assembly hole on one side close to the second chamber. The permanent magnet is fixed on the central shaft, and a gap is left between the permanent magnet and the coil frame. The first end of the central shaft is inserted into the first assembly hole, and the second end passes through the second assembly hole and extends into the second chamber. The piston is fixed on the second end of the central shaft. When the coil is energized, the center shaft can reciprocate along the axis of the coil frame with the permanent magnet, so that the piston can move along the inner wall of the second chamber in a direction away from or close to the working port, and within the effective stroke of the piston, the first end of the center shaft is always located in the hub structure.
2. The massage device according to claim 1, characterized in that: The housing comprises a shell and an end cover, wherein the end cover is disposed on the shell and is close to the first chamber, and the end cover is provided with the first assembly hole; A partition bracket is provided on the inner side of the shell at a partition between the first chamber and the second chamber, a third assembly hole is provided on the partition bracket, and the second assembly hole is located opposite to the third assembly hole.
3. The massage device according to claim 1, characterized in that: The massage device further comprises a first magnetic conductive sheet and a second magnetic conductive sheet, the permanent magnet is sandwiched between the first magnetic conductive sheet and the second magnetic conductive sheet, and the first magnetic conductive sheet is close to the first assembly hole, and the second magnetic conductive sheet is close to the second assembly hole; The centers of the first magnetic conductive sheet and the permanent magnet are also provided with avoidance holes, and within the effective stroke of the central axis, the hub structure is always inserted into the avoidance hole.
4. The massage device according to claim 3, characterized in that: The piston has a maximum stroke and a minimum stroke. When the piston is at the maximum stroke, the piston is closest to the working port, and when the piston is at the minimum stroke, the piston is farthest from the working port. A limiting step is also provided on the hub structure, and when the first magnetic conductive sheet is in contact with the limiting step, the piston is located at the position of the minimum stroke.
5. The massage device according to claim 4, characterized in that: The first magnetic conductive sheet and the second magnetic conductive sheet are both provided with elastic members, and when the piston is located at the position of the maximum stroke or the minimum stroke, the elastic members are in a compressed state.
6. The massage device according to claim 1, characterized in that: A piston ring is arranged between the piston and the inner wall of the shell, and the piston ring is made of plastic or rubber material.
7. The massage device according to claim 2, characterized in that: The coil frame and the end cover are both made of plastic.
8. The massage device according to claim 2, characterized in that: It also includes a circuit board, which is arranged on the outside of the end cover, and the coil is connected to the circuit board.
9. The massage device according to claim 8, characterized in that: The coils are provided in multiple groups, and the multiple groups of coils are connected in series or in parallel.