CN110975249A

CN110975249A - Racket

Info

Publication number: CN110975249A
Application number: CN201911315537.6A
Authority: CN
Inventors: 朱建军; 朱锦航
Original assignee: Changzhou College of Information Technology CCIT
Current assignee: Changzhou College of Information Technology CCIT
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-04-10
Also published as: CN111346354A; CN111346354B

Abstract

The invention discloses a racket, comprising: a racket frame; a conductor; the racket net is arranged in the installation channel, and the periphery of the racket net is connected with the racket frame; the magnetic piece is arranged on the racket net, at least one part of the racket net drives the magnetic piece to move relative to the conductor when a ball is struck, and electric energy is generated by cutting the magnetic induction lines; one end of the racket rod is connected with the racket frame; one end of the handheld part is connected with the other end of the racket rod; the rectifier is arranged on the racket rod and connected with the conductor; the energy storage part is arranged on the racket rod and is connected with the rectifier so that electric energy is charged into the energy storage part after being rectified; the heat-conducting piece, the heat-conducting piece links to each other in order to turn into heat energy with the electric energy with energy storage portion, and the heat-conducting piece includes: a thermally conductive substrate; the phase-change material packaging part is arranged on the heat-conducting base body, and a cavity is defined in the phase-change material packaging part; a phase change material. When the racket is used in a cold environment, heat generated by batting can be converted and conducted, the possibility of breakage of a racket net caused by cold can be reduced, and the comfortable feeling of holding the racket by a user can be improved.

Description

Racket

Technical Field

The invention belongs to the technical field of sports goods, and particularly relates to a racket.

Background

With the improvement of living standard of people and the rise of fitness enthusiasm of people, badminton, squash, tennis and other sports are widely popularized, but in winter with cold weather, as most of rackets are usually made of metal materials, the hand feeling is poor in low-temperature environment, the comfortable feeling of holding the racket of a user can be reduced to a great extent, and the possibility of losing hands of the racket is easily caused due to the fact that the contact positions of hands and the racket are cold, so that certain potential safety hazards exist. In addition, when the racket is placed in a cold environment, the net strings and other structures are easily embrittled by the influence of the cold environment, the breakage of the structures such as the racket strings is easily accelerated when the racket is used, and the service life of the racket strings, the racket frame and the racket rod is shortened.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art.

Therefore, the invention provides the racket, which can improve the holding comfort of a user and effectively prolong the service life of the racket.

A racket according to an embodiment of the present invention includes: a racquet frame formed as a ring having a mounting channel; a conductor, at least a portion of which is provided on an inner wall surface of the mounting passage; the racket net is arranged in the mounting channel, and the periphery of the racket net is connected with the racket frame; the magnetic piece is arranged on the racket net, at least one part of the racket net drives the magnetic piece to move relative to the conductor when a ball is struck, and electric energy is generated by cutting the magnetic induction lines; one end of the racket rod is connected with the racket frame; one end of the handheld part is connected with the other end of the racket rod; the rectifier is arranged on the racket rod and connected with the conductor; the energy storage part is arranged on the racket rod and is connected with the rectifier so that electric energy is charged into the energy storage part after being rectified; a heat conducting member provided in at least one of the racket frame, the racket net and the handle, the heat conducting member being connected to the energy storage portion to convert electric energy into heat energy, the heat conducting member including: a thermally conductive substrate; the phase-change material packaging part is arranged on the heat conduction base body, and a cavity is defined in the phase-change material packaging part; the phase-change material is arranged in the cavity.

According to the racket provided by the embodiment of the invention, the racket frame, the conductor, the racket net, the magnetic part, the racket rod, the handheld part, the rectifier, the energy storage part and the heat conducting part are combined, the heat conducting part adopts the device combining the heat conducting base body, the phase-change material packaging part and the phase-change material, the characteristic property of the phase-change material is utilized, the action of a user is combined, when the user uses the racket to play a ball for entertainment, the racket can absorb heat, when the user stops playing the ball, the racket can automatically dissipate heat, the temperature of the racket is kept, the racket can be stored and placed outdoors in cold weather, and the racket is prevented from being influenced by cold climate, so that the service life of the. And when the user stops beating, the hand holding the hand-held part can receive the heat emitted by the hand-held part, so that the use feeling, the comfort level and the happiness of the user are improved.

According to one embodiment of the invention, the racket net comprises: a wire core comprising a plurality of layers of fibers; the coating is arranged on at least one part of the periphery of the wire core, the coating comprises an adhesive and the magnetic part, and the magnetic part is subjected to magnetic field orientation molding.

According to an embodiment of the invention, the racket net further comprises: and the thermosensitive color-changing part is arranged on the wire core and is compounded with the wire core.

According to one embodiment of the present invention, the thermochromic portion is a thermochromic fiber, and the method of preparing the racket net includes: and compounding the thermosensitive discoloring fibers with the wire core, wherein the thermosensitive discoloring fibers are wound on the periphery of the wire core.

According to one embodiment of the present invention, the racket net includes a plurality of strings, the magnetic member includes magnetic powder, and the racket net is manufactured by a method including: heating and mixing the magnetic part and a resin adhesive to obtain a mixture; mixing the obtained mixture with resin in a magnetic environment to obtain a resin mixture; extruding and spinning the obtained resin mixture to prepare a coiled net wire; and connecting the obtained net twine with the racket frame to prepare the racket net, and placing the racket net in a magnetic field for 10-48 h.

According to an embodiment of the present invention, the magnetic member further includes magnetic carbon nanotubes aligned by a magnetic field.

According to an embodiment of the present invention, the method of manufacturing the heat-conductive member includes: heating the phase change material to a fluid; adding the phase-change material packaging part into the fluid, heating and ultrasonically dispersing to obtain a reaction mixture; heating, stirring, ultrasonically treating, dispersing, centrifuging and drying the obtained reaction mixture to obtain the phase-change material packaging part filled with the phase-change material; and compounding the obtained phase change material packaging part filled with the phase change material with the heat conduction substrate.

According to one embodiment of the invention, the phase change material encapsulation comprises carbon nanotubes.

According to one embodiment of the invention, the phase change material is a mixture of paraffin and oleylamine.

According to one embodiment of the invention, the racket net comprises: a plurality of first network cables; a plurality of second net twines, the elasticity of second net twine is greater than the elasticity of first net twine, the rigidity of second net twine is less than first net twine, and is a plurality of second net twine is with a plurality of first net twine crisscross longitude and latitude.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a structure of a racquet according to an embodiment of the invention;

FIG. 2 is a schematic diagram of the interaction between balls and a racquet net according to an embodiment of the invention;

FIG. 3 is a composite schematic view of a Racket net and a magnetic member according to an embodiment of the present invention;

fig. 4 is a microscopic view of a heat-conductive member according to an embodiment of the present invention.

Reference numerals:

a racket 100;

a racket frame 10; a conductor 20;

a swatter net 30;

a magnetic member 40; a racket shaft 50; a hand-held portion 60;

a heat conductive member 70; a thermally conductive base 71; a phase change material encapsulation portion 72; a phase change material 73;

balls 200.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Hereinafter, a racket 100 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 4, a racket 100 according to an embodiment of the present invention includes: the racket frame 10, the conductor 20, the racket net 30, the magnetic member 40, the racket shaft 50, the hand held portion 60, the rectifier, the energy storage portion and the heat conducting member 70, wherein the heat conducting member 70 comprises a heat conducting base 71, a phase change material packaging portion 72 and a phase change material 73.

Specifically, the racket frame 10 is formed as a ring-shaped member having a mounting passage, at least a portion of the conductor 20 is disposed on an inner wall surface of the mounting passage, the racket net 30 is disposed in the mounting passage, an outer circumference of the racket net 30 is connected to the racket frame 10, the magnetic member 40 is disposed on the racket net 30, at least a portion of the racket net 30 drives the magnetic member 40 to move relative to the conductor 20 when a ball is hit, electric power is generated by cutting magnetic induction lines, one end of the racket shaft 50 is connected to the racket frame 10, one end of the handle portion 60 is connected to the other end of the racket shaft 50, the rectifier is disposed on the racket shaft 50 and connected to the conductor 20, the energy storage portion is disposed on the racket shaft 50 and connected to the rectifier such that the electric power is rectified and then charged into the energy storage portion, the heat conductive member 70 is disposed on at least one of the racket frame 10, the racket net 30, and the handle portion 60, the heat conductive member 70 is connected to the energy storage portion such that the, phase change material 73 is disposed in the chamber.

In other words, the racket 100 according to the embodiment of the present invention is mainly composed of the frame 10, the conductor 20, the net 30, the magnetic member 40, the shaft 50, the handle 60, the rectifier, the energy storage portion and the heat conductive member 70, and the frame 10, the net 30, the shaft 50 and the handle 60 are combined with each other to form a general racket 100, which can be used for various ball games. In order to mount the racket net 30, a ring-shaped mounting passage is provided in the racket frame 10, a conductor 20 is provided at least in a part of an inner wall surface of the mounting passage, a magnetic member 40 may be provided on a plurality of strings of the racket net 30, and the magnetic member 40 and the racket net 30 may be combined during processing or other mounting methods may be selected. As shown in fig. 2, when a user hits a ball using the racket 100, a ball 200 (e.g., tennis ball, squash ball, badminton ball, etc.) presses the surface of the net 30, the net 30 is compressed to be deformed telescopically toward the moving direction of the ball (dotted line in fig. 2), and then the net 30 is restored to its original shape. When the racket net 30 is deformed in a telescopic way, the magnetic part 40 can be driven to move, the magnetic part 40 can be matched with the conductor 20 in the moving process, the magnetic induction lines are cut, electric energy is generated, and the electric energy can be charged into the energy storage part after being rectified by the rectifier. In order to not occupy space and hinder hitting, the energy storage part may be mounted on the racket shaft 50. At least one of the racket frame 10, the racket net 30 and the hand-held portion 60 may be provided with a heat conductive member 70, the heat conductive member 70 is mainly composed of a heat conductive base 71, a phase change material packing portion 72 and a phase change material 73, and the heat conductive member 70 is connected to the energy storage portion so as to be able to convert electric energy into heat energy. The heat conducting base 71 can comprise heat conducting metal and the like, the phase-change material packaging part 72 is further arranged on the heat conducting base 71, a cavity is defined in the phase-change material packaging part 72, the phase-change material 73 is arranged in the cavity, and due to the special property of the phase-change material 73, heat storage can be achieved by utilizing the property that a large amount of heat needs to be absorbed or released when a substance undergoes phase change. When the racket 100 of the embodiment of the present invention is used, after the process of magnetic electricity generation and electric heat generation, the phase change material 73 can store energy, and can adjust the temperature of the racket 100, for example, solid-liquid phase change, when the phase change material 73 is heated, the phase change material 73 changes from a solid state to a liquid state, in the process of melting, the phase change material 73 can absorb and store a large amount of latent heat, and when the phase change material 73 is cooled, the stored heat is dissipated to the environment within a certain temperature range, so that the reverse phase change from the liquid state to the solid state is realized.

In order to improve the efficiency and effect of the magnetic power generation, the structure and connection structure of the racket frame 10 and the racket net 30 may be improved, so as to improve the deformation amplitude and deformation amount of the racket net 30. In improving the structure and connection relationship, reference may be made to the structure and improvement method of the prior racket net 30 with higher elasticity, such as racket with application number CN99125499.6 capable of improving the hitting performance, racket structure with application number CN201110042109.8 capable of damping and increasing the elasticity, such as tennis racket, squash racket or badminton racket, etc.

Therefore, the racket 100 according to the embodiment of the present invention employs the combination of the frame 10, the conductor 20, the net 30, the magnetic member 40, the shaft 50, the handle portion 60, the rectifier, the energy storage portion and the heat conductive member 70, and the combination of the heat conductive member 70, the heat conductive base 71, the phase change material packaging portion 72 and the phase change material 73, so that the racket 100 can absorb heat when a user plays a ball using the racket 100, and the racket 100 can dissipate heat by itself when the user stops playing the ball, thereby maintaining the temperature of the racket 100, and when the heat conductive member 70 is provided on the frame 10, the net 30 and the shaft 50, the racket 100 can be stored and placed outdoors in cold weather, thereby preventing the racket 100 from being affected by cold weather, and shortening the life thereof. When the heat-conducting member 70 is provided on the hand-held portion 60, the user can receive the heat generated from the hand-held portion 60 when the user stops striking, and the user's feeling of use, comfort and well-being can be improved.

According to one embodiment of the present invention, the racket net 30 includes a core including a plurality of layers of fibers and a covering layer that may be provided on at least a portion of an outer circumference of the core, the covering layer including a binder and a magnetic member 40, the magnetic member 40 being formed by magnetic field orientation so as to facilitate cutting of the magnetic induction lines. By adopting the structure that the wire core and the coating layer are combined, the elasticity of the racket net 30 can be ensured, the magnetic part 40 can be conveniently installed, the installation process is simplified, and the installation firmness and stability are ensured.

Further, the racket net 30 further comprises a thermosensitive color-changing portion, the thermosensitive color-changing portion is arranged on the wire core and is compounded with the wire core, the color-changing function can be achieved by adding the thermosensitive color-changing portion, different colors can be displayed at different temperatures, entertainment and attractiveness can be increased, and a user can clearly and intuitively acquire the temperature of the racket 200. And a thermosensitive color-changing layer can be added at other parts of the racket net 30, so that the intuitiveness is further enhanced.

Optionally, the thermochromic portion is thermochromic fibers, the preparation method of the racket net 30 comprises compounding the thermochromic fibers with the wire core, and the thermochromic fibers are wound around the periphery of the wire core.

In some embodiments of the present invention, the racket net 30 includes a plurality of strings, the magnetic member 40 includes magnetic powder, and the racket net 30 is manufactured by a method including: heating and mixing the magnetic member 40 with a resin binder to obtain a mixture; mixing the obtained mixture with resin in a magnetic environment, wherein mechanical stirring and ultrasonic dispersion can be adopted in the mixing process to obtain a resin mixture, and the obtained resin mixture has magnetic orientation; extruding and spinning the obtained resin mixture to prepare a coiled net wire; connecting the obtained net strings with the racket frame 10 to prepare the racket net 30, and placing the racket net 30 in a magnetic field for 10 to 48 hours at the temperature of 20 to 150 ℃.

Further, the magnetic member 40 further includes magnetic carbon nanotubes aligned by a magnetic field, the carbon nanotubes are light in weight, and during processing and preparation, the carbon nanotubes can be attached with magnetic powder, and the resin can be epoxy resin, so that the flowability is high, and the ordered arrangement of the carbon nanotubes is facilitated.

According to an embodiment of the present invention, the method of manufacturing the heat conductive member 70 includes: heating the phase change material 73 to a fluid; adding the phase change material encapsulation part 72 into the fluid, heating and ultrasonically dispersing to obtain a reaction mixture; heating, stirring, ultrasonically treating, dispersing, centrifuging and drying the obtained reaction mixture to obtain a phase-change material packaging part 72 filled with a phase-change material 73; the obtained phase change material encapsulation portion 72 filled with the phase change material 73 is compounded with the heat conductive base 71.

Optionally, the phase change material encapsulation 72 includes carbon nanotubes.

Further, the phase change material 73 is a mixture of paraffin and oleylamine, and paraffin modified by oleylamine can enter the inner cavity of the carbon nanotube by self-diffusion under stirring.

According to one embodiment of the invention, the Racket net 30 comprises: the elastic property of the second net thread is larger than that of the first net thread, the rigidity of the second net thread is smaller than that of the first net thread, and the second net threads are staggered with the first net threads in a longitude and latitude mode. By adopting the structure that the first net twine is matched with the second net twine, the elasticity can be ensured, meanwhile, the service life of the racket net 30 is prolonged, and the net twine of the racket net 30 is not easy to break.

In some embodiments of the present invention, the racket 10 according to the embodiments of the present invention may further include a shock absorbing part, and the shock absorbing part may be mounted on the frame 10, and the specific mounting structure may be some existing racket shock absorbing structure.

In summary, the racket 100 according to the embodiment of the present invention, which combines the frame 10, the conductor 20, the net 30, the magnetic member 40, the shaft 50, the handle portion 60, the rectifier, the energy storage portion and the heat conductive member 70, has at least the following advantages:

(1) the racket 100 can be applied to various ball games, such as tennis, squash, badminton, etc., and has a wide application range;

(2) the electric energy can be generated through the hitting action of the user, so that the energy is saved, the entertainment is improved, and the sport enthusiasm of the user is stimulated;

(3) the heat conducting piece 70 can store and release energy, so that the electric energy can be automatically converted into heat energy, when the heat conducting piece 70 is arranged on the handheld part 60, a user can receive the heat released by the heat conducting piece 70 during movement clearance or rest, and the use comfort and the happiness of the user are improved;

(4) when the heat-conductive member 70 is provided on the frame 10 and the net 30, the racket 100 can be stored and placed outdoors in cold weather, preventing the racket 100 from being affected by cold weather, resulting in a shortened life span thereof.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A racket, comprising:

a racquet frame formed as a ring having a mounting channel;

a conductor, at least a portion of which is provided on an inner wall surface of the mounting passage;

the racket net is arranged in the mounting channel, and the periphery of the racket net is connected with the racket frame;

the magnetic piece is arranged on the racket net, at least one part of the racket net drives the magnetic piece to move relative to the conductor when a ball is struck, and electric energy is generated by cutting the magnetic induction lines;

one end of the racket rod is connected with the racket frame;

one end of the handheld part is connected with the other end of the racket rod;

the rectifier is arranged on the racket rod and connected with the conductor;

the energy storage part is arranged on the racket rod and is connected with the rectifier so that electric energy is charged into the energy storage part after being rectified;

a heat conducting member provided in at least one of the racket frame, the racket net and the handle, the heat conducting member being connected to the energy storage portion to convert electric energy into heat energy, the heat conducting member including:

a thermally conductive substrate;

the phase-change material packaging part is arranged on the heat conduction base body, and a cavity is defined in the phase-change material packaging part;

the phase-change material is arranged in the cavity.

2. The racket of claim 1, wherein said net comprises:

a wire core comprising a plurality of layers of fibers;

the coating is arranged on at least one part of the periphery of the wire core, the coating comprises an adhesive and the magnetic part, and the magnetic part is subjected to magnetic field orientation molding.

3. The racket of claim 2, wherein said net further comprises:

and the thermosensitive color-changing part is arranged on the wire core and is compounded with the wire core.

4. The racket as claimed in claim 3, wherein the thermochromic part is thermochromic fiber, and the net is prepared by a method comprising:

and compounding the thermosensitive discoloring fibers with the wire core, wherein the thermosensitive discoloring fibers are wound on the periphery of the wire core.

5. The racket of claim 1, wherein the net includes a plurality of strings, the magnetic member includes magnetic powder, and the method of manufacturing the net includes:

heating and mixing the magnetic part and a resin adhesive to obtain a mixture;

mixing the obtained mixture with resin in a magnetic environment to obtain a resin mixture;

extruding and spinning the obtained resin mixture to prepare a coiled net wire;

and connecting the obtained net twine with the racket frame to prepare the racket net, and placing the racket net in a magnetic field for 10-48 h.

6. The racket of claim 5, wherein the magnetic member further comprises magnetic carbon nanotubes aligned via a magnetic field.

7. The racket as claimed in claim 1, wherein the heat conductive member is prepared by a method comprising:

heating the phase change material to a fluid;

adding the phase-change material packaging part into the fluid, heating and ultrasonically dispersing to obtain a reaction mixture;

heating, stirring, ultrasonically treating, dispersing, centrifuging and drying the obtained reaction mixture to obtain the phase-change material packaging part filled with the phase-change material;

and compounding the obtained phase change material packaging part filled with the phase change material with the heat conduction substrate.

8. The racket of claim 7, wherein the phase change material encapsulation includes carbon nanotubes.

9. The racket of claim 7, wherein the phase change material is a mixture of paraffin and oleylamine.

10. The racket of any of claims 1 through 9, wherein the net comprises:

a plurality of first network cables;

a plurality of second net twines, the elasticity of second net twine is greater than the elasticity of first net twine, the rigidity of second net twine is less than first net twine, and is a plurality of second net twine is with a plurality of first net twine crisscross longitude and latitude.