Dot matrix scanning type focused ultrasonic beauty instrument

Abstract

The utility model relates to a dot matrix scanning type focused ultrasound beauty instrument which comprises a shell, a main control board, a swing arm, a magnet device and a focused ultrasound transducer installed at the follow-up end of the swing arm are arranged in the shell. A rotary mounting part is arranged in the middle of the swinging arm, one side of the rotary mounting part is a driving end, and the other side is a follow-up end; the driving end is provided with a coil claw, and a driving coil is installed in the coil claw. The follow-up end extends outwards to form a mounting seat, and a focused ultrasonic transducer is mounted on the mounting seat; the magnet device comprises a base and a shielding cover; a bottom driving magnet is fixed on the inner side of the base, a top driving magnet is fixed on the inner side of the shielding cover, the bottom driving magnet and the top driving magnet are arranged at an interval, and a part of the driving coil is located in a channel between the bottom driving magnet and the top driving magnet; and the rotary mounting part of the swinging arm is rotationally connected with the base of the magnet device. According to the utility model, pulse output and accurate positioning scanning of focused ultrasound are realized, and the use effect is improved.

Description

Technical Field

[0001] This utility model relates to a device for achieving beauty using focused ultrasound, particularly a focused ultrasound beauty device using fractional scanning technology, belonging to the field of beauty equipment technology. Background Technology

[0002] Focused ultrasound, or ultrasound focusing, uses ultrasound waves as an energy source to emit multiple beams of ultrasound waves from outside the body into the body. During the emission and transmission process, the waves are focused onto a single point, and through the conversion of sound waves and heat energy, a high-temperature treatment point of 70°C to 100°C is formed within 0.5 to 1 second.

[0003] Existing focused ultrasound devices are all used in a fixed-point output mode, such as a focused ultrasound beauty instrument with Chinese patent publication number CN117180644A; or they use a more complex driving structure to achieve the driving effect, such as a focused ultrasound beauty instrument with Chinese patent publication number CN204469040U.

[0004] To improve efficiency, enhance user experience, and reduce risks, focused ultrasound devices need to be able to move and avoid fixed-point output. Therefore, to enable home use of focused ultrasound and create a focused ultrasound beauty device, it is necessary to install it on a miniaturized and reliable motion drive device, ultimately realizing the handheld application of the focused ultrasound beauty device. Utility Model Content

[0005] The purpose of this invention is to provide a dot-matrix scanning focused ultrasound beauty device. The focused ultrasound transducer is mounted on a swing arm device, and the focused ultrasound transducer is driven to swing using the electromagnetic drive principle, thereby achieving dot-matrix automatic scanning of ultrasonic energy and making the focused ultrasound beauty device work better.

[0006] To achieve the above-mentioned utility model objectives, this utility model provides a dot-matrix scanning focused ultrasound beauty instrument, including a housing, a main control board, a swing arm, a magnet device, and a focused ultrasound transducer installed at the follower end of the swing arm.

[0007] The middle of the swing arm is the rotating mounting part, one side of the rotating mounting part is the drive end, and the other side is the follower end;

[0008] The drive end is equipped with a coil claw, and a drive coil is installed inside the coil claw;

[0009] The follower end extends outward to form a mounting base, on which a focused ultrasonic transducer is mounted;

[0010] The base of the focused ultrasonic transducer is mounted on the mounting base, while the working head of the focused ultrasonic transducer faces outward.

[0011] A magnet device includes a base and a shielding cover; the base is fixed inside the housing, the shielding cover is fixed on the base, and a magnet driving cavity is formed between the base and the shielding cover; magnets are provided on the top and bottom plates of the magnet driving cavity.

[0012] A bottom drive magnet is fixed inside the base, and a top drive magnet is fixed inside the shielding cover. The bottom drive magnet and the top drive magnet are spaced apart, and a portion of the drive coil is located in the channel between the bottom drive magnet and the top drive magnet.

[0013] The rotating mounting part of the swing arm is rotatably connected to the base of the magnet device;

[0014] The main control board is electrically connected to the drive coil inside the swing arm and the focused ultrasonic transducer.

[0015] As a further improvement of this utility model, the bottom driving magnet and the top driving magnet are arranged opposite to each other;

[0016] A magnetic field with the same direction is formed between the bottom driving magnet and the top driving magnet.

[0017] Furthermore, there are two bottom drive magnets and two corresponding top drive magnets;

[0018] Two magnetic fields generated by magnets are formed in the magnet drive cavity between the base and the shielding cover, and the two magnetic fields are in opposite directions.

[0019] Two arms of a driving coil are respectively installed in the two magnetic fields;

[0020] When the drive coil is energized, the electromagnetic poles of the two arms are aligned.

[0021] The electromagnetic field of the drive coil interacts with the magnetic field generated by the magnet in the magnet device, which generates a driving force on the drive coil to swing around the rotating mounting part. The drive coil drives the swing arm to swing back and forth around the rotating mounting part.

[0022] As a further improvement of this utility model, the rotating mounting part of the swing arm is provided with a hinge hole, and a bearing is embedded in the hinge hole.

[0023] The swing arm is rotatably connected to the base of the magnet device via a bearing.

[0024] As a further improvement of this utility model, a position detection device is provided to detect the swing angle / position of the swing arm relative to the magnet device.

[0025] Furthermore, the position detection device is a Hall effect detection device;

[0026] The Hall element of the Hall detection device is mounted on the swing arm;

[0027] A detection magnet is installed outside the shielding cover of the magnet device;

[0028] The detection magnet is positioned relative to the Hall element;

[0029] The Hall element is electrically connected to the main control board.

[0030] As a further improvement of this utility model, a skin capacitance detection module and a photoelectric displacement detection module are provided near the focused ultrasound transducer.

[0031] The skin capacitance detection module and the photoelectric displacement detection module are electrically connected to the main control board.

[0032] As a further improvement of this utility model, a surface infrared temperature detection module is provided near the focused ultrasonic transducer, and the surface infrared temperature detection module is electrically connected to the main control board.

[0033] This utility model discloses a dot-matrix scanning focused ultrasound beauty device, which realizes focused ultrasound pulse output and precise positioning scanning, and achieves dot-matrix automatic scanning, greatly increasing the effect of use. It precisely controls the electrical energy of each area, and stimulates collagen production and reduces fat cells to the maximum efficiency without damaging the skin.

[0034] This utility model discloses a fractional scanning focused ultrasound beauty device, which has the following characteristics:

[0035] 1. The ultra-compact focused ultrasound transducer allows each beam of ultrasound energy to be precisely applied to the dermis.

[0036] The ultra-compact focused ultrasound module is small in size, lightweight, has high acoustic power, and low manufacturing and maintenance costs.

[0037] 2. The dot matrix scanning module uses a magnetic levitation swing arm system, which can precisely and quickly control the interval of the ultrasound head's action, making home-use focused ultrasound possible.

[0038] It employs a moving-coil scanning system, which can precisely control the distance between points. It achieves dot-matrix scanning output. The scanning system uses a linear Hall sensor for precise real-time position monitoring. Once it reaches the designated hovering position, it begins outputting ultrasonic pulses. After a single pulse is output, PID control is applied to the moving coil to quickly and accurately reach the next position and begin the next pulse output.

[0039] The entire focused ultrasound scanning system, together with skin capacitance detection and photoelectric displacement detection modules, can ensure accurate output of dot matrix pulse ultrasound when used at normal speeds.

[0040] 3. The surface infrared temperature detection module can monitor skin temperature in real time, maximizing heating and usage effects without causing skin damage.

[0041] This utility model discloses a fractional scanning focused ultrasound beauty device, which adopts a miniaturized focused ultrasound scanning system. It is very small in size, and the scanning size can be controlled to 10-20mm. The focused scanning system can be controlled within 100mm, and the size of each focus can be controlled within 3mm. Each ultrasound pulse acts vertically 2mm under the skin, making it better suited for home and medical miniaturized handheld products. Attached Figure Description

[0042] Figure 1 The overall structural shape of the fractional scanning focused ultrasound beauty device of this utility model. Figure 1 ;

[0043] Figure 2 The overall structural shape of the fractional scanning focused ultrasound beauty device of this utility model. Figure 2 ;

[0044] Figure 3 This is an overall structural outline of the core component of a dot-matrix scanning focused ultrasound beauty device according to this utility model;

[0045] Figure 4 This is a schematic diagram of the drive structure of the swing arm;

[0046] Figure 5 This is an internal diagram of the drive structure of the swing arm;

[0047] Figure 6 This is a cross-sectional view of the drive structure of the swing arm. Detailed Implementation

[0048] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0049] like Figure 1 , Figure 2 The diagram shown is a schematic diagram of the internal structure of a dot-matrix scanning focused ultrasound beauty instrument of this utility model. The outer shell has been removed. It includes a main control board 1, a swing arm 2, a magnet device 3, a position detection device 4, and a focused ultrasound transducer 5 installed at the follower end of the swing arm 2.

[0050] The main control board 1 provides drive power to the swing arm 2 and is connected to the position detection device 4 to provide position detection, thereby adjusting to provide drive power to the swing arm 2. At the same time, it is connected to the focused ultrasound transducer 5 to provide power, so that the focused ultrasound transducer 5 can output pulses and cooperate with the swing arm 2 to output energy.

[0051] The magnet device 3 is fixed inside the housing, and the swing arm 2 is rotatably mounted on the base 31 of the magnet device 3.

[0052] Furthermore, such as Figure 3 , Figure 4 , Figure 5 As shown, the middle of the swing arm 2 is the rotating mounting part, one side of the rotating mounting part is the drive end 21, and the other side is the follower end 24.

[0053] The drive end 31 is provided with a coil claw 22, and a drive coil 23 is installed inside the coil claw 22. The drive coil 23 is connected to the main control board 1. When the drive coil 23 is energized, it will generate an electromagnetic field. By adjusting the direction and magnitude of the current in the drive coil 23, the magnitude and direction of the electromagnetic field generated by the drive coil 23 can be changed.

[0054] The magnet device 3 includes a base 31 and a shielding cover 32. The base 31 is fixed inside the housing, and the shielding cover 32 is fixed on the base 31. A magnet driving cavity is formed between the base 31 and the shielding cover 32. Magnets are provided on the top and bottom plates of the magnet driving cavity. Specifically, a bottom driving magnet 33 is fixed inside the base 31, and a top driving magnet 34 is fixed inside the shielding cover 32. The bottom driving magnet 33 and the top driving magnet 34 are spaced apart. A part of the driving coil 23 is located in the channel between the bottom driving magnet 33 and the top driving magnet 34.

[0055] The bottom driving magnet 33 and the top driving magnet 34 are arranged opposite each other. That is, if the inner side of the bottom driving magnet 33 is the S pole, then the inner side of the top driving magnet 34 is the N pole, thereby forming a magnetic field from the bottom S pole to the top N pole, and vice versa. Then, the driving coil 23 is energized to generate an electromagnetic field, which interacts with the magnetic field between the bottom driving magnet 33 and the top driving magnet 34, thereby driving the driving coil 23 and the coil claw 22 to move.

[0056] Preferably, two bottom driving magnets 33 and two corresponding top driving magnets 34 are provided, thereby forming two magnetic fields generated by the magnets within the magnet driving cavity between the base 31 and the shielding cover 32. The directions of the two magnetic fields are opposite; in one location, the inner side of the bottom driving magnet 33 is the S pole, and the inner side of the top driving magnet 34 is the N pole, forming a magnetic field from the bottom S pole to the top N pole. In the other location, the inner side of the bottom driving magnet 33 is the N pole, and the inner side of the top driving magnet 34 is the S pole, forming a magnetic field from the bottom N pole to the top S pole. Within each of the two magnetic fields, two arms of the driving coil 23 are respectively provided. When the driving coil 23 is energized, the electromagnetic poles of the two arms are in the same direction, so one arm is located at one... When the magnetic field is attractive, the other arm is repulsive in another magnetic field, thus generating a driving force on the drive coil 23 and coil claw 22 to move towards one side of the magnetic field. When the current in the drive coil 23 is in the opposite direction, the electromagnetic poles of the two arms are reversed, causing the arm that originally generated the attractive force to generate a repulsive force in the magnetic field, while the other arm that originally generated the repulsive force to generate the attractive force in the magnetic field. This causes the drive coil 23 and coil claw 22 to generate a driving force to move towards the other side of the magnetic field. The current in the drive coil 23 switches repeatedly, and the swing arm 2 is rotated and mounted on the base 31 of the magnet device 3, ultimately causing the drive coil 23 and coil claw 22 to drive the entire swing arm 2 to perform a reciprocating swing motion.

[0057] The follower end 24 extends outward to form a mounting base 25 for mounting the focused ultrasound transducer 5; the base of the focused ultrasound transducer 5 is mounted on the mounting base 25, while the working head faces the outside of the beauty device, that is, the working head faces the skin.

[0058] The swing arm 2 has a high swing frequency, so a hinge hole 26 is provided in the middle of the swing arm 2, and a bearing 27 is embedded in it. The swing arm 2 is rotatably connected to the base 31 of the magnet device 3 through the bearing 27, which can reduce rotational friction, thereby reducing the loss of the swing driving force of the drive coil 23 and reducing energy consumption.

[0059] Furthermore, a position detection device 4 is provided to detect the swing angle / position of the swing arm 2 relative to the magnet device 3, thereby calculating the swing position of the focused ultrasound transducer 5. The position detection device 4 is a Hall effect sensor, with a Hall element mounted on the swing arm 2. A detection magnet 43 is provided outside the shielding cover 32 of the magnet device 3, and the detection magnet 43 is opposite to the Hall element. Therefore, when the swing arm 2 swings relative to the magnet device 3, it will simultaneously drive the Hall element to swing relative to the detection magnet 43, causing the Hall element to detect the change in magnetic field strength. This allows the swing distance of the Hall element relative to the detection magnet 43 to be calculated, thereby calculating the swing angle / position of the swing arm 2 relative to the magnet device 3, and finally calculating the swing position of the focused ultrasound transducer 5.

[0060] This utility model discloses a fractional scanning focused ultrasound beauty device. Near the focused ultrasound transducer 5, it also includes a skin capacitance detection module and a photoelectric displacement detection module. The skin capacitance detection module detects whether the beauty device is in contact with the skin; the focused ultrasound transducer 5 can only operate when in contact with the skin. The photoelectric displacement detection module detects whether the beauty device moves on the skin; the focused ultrasound transducer 5 can only operate continuously when moving on the skin, preventing energy concentration in one area and potential skin damage. The detection results from the photoelectric displacement detection module are fed back to the swing arm 2, ensuring that the swing speed of the swing arm 2 matches the movement speed of the beauty device on the skin, ultimately ensuring accurate output of fractional pulse ultrasound when used at normal speeds.

[0061] The position detection device 4 feeds back the detection results to the main control board 1. The main control board 1 controls the direction and magnitude of the power supply current of the drive coil 23 in the swing arm 2, thereby controlling the swing speed and amplitude of the swing arm 2. At the same time, the main control board 1 controls the working state of the focused ultrasound transducer 5, so that it can output pulses in coordination with the swing of the swing arm 2, and finally realize the dot matrix automatic scanning output of ultrasound energy, so that the ultrasound energy can evenly cover the skin area.

[0062] By precisely controlling the electrical energy in each area, collagen production is stimulated to the maximum extent and fat cells are reduced without damaging the skin, achieving better cosmetic results.

[0063] This utility model discloses a dot-matrix scanning focused ultrasound beauty device. Near the focused ultrasound transducer, a surface infrared temperature detection module is also provided. This module can monitor the skin temperature in real time, thereby maximizing the heating and usage effects without causing any risk of skin damage.

[0064] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A dot matrix scanning focused ultrasound cosmetic instrument, characterized in that, The shell is internally provided with a main control board, a swing arm, a magnet device, and a focused ultrasonic transducer installed at a following end of the swing arm; The middle of the swing arm is a rotating mounting portion, one side of the rotating mounting portion is a driving end, and the other side is a following end; The driving end is provided with a coil claw, and the coil claw is internally installed with a driving coil; The following end extends outward to form a mounting seat, and the focused ultrasonic transducer is installed on the mounting seat; The base of the focused ultrasonic transducer is installed on the mounting seat, and the working head of the focused ultrasonic transducer faces outward; The magnet device comprises a base and a shielding cover; the base is fixed in the shell, and the shielding cover is fixed on the base; a magnet driving cavity is formed between the base and the shielding cover, and the top and bottom of the magnet driving cavity are provided with magnets; A bottom driving magnet is fixed on the inner side of the base, and a top driving magnet is fixed on the inner side of the shielding cover; the bottom driving magnet and the top driving magnet are arranged in a spaced manner, and a part of the driving coil is located in the passage between the bottom driving magnet and the top driving magnet; The rotating mounting portion of the swing arm is rotationally connected with the base of the magnet device; The main control board is electrically connected with the driving coil in the swing arm and the focused ultrasonic transducer.

2. The dot scanning focused ultrasound cosmetic instrument according to claim 1, wherein, The bottom driving magnet and the top driving magnet are oppositely arranged; A magnetic field with the same direction is formed between the bottom driving magnet and the top driving magnet.

3. The dot scanning focused ultrasound cosmetic instrument according to claim 2, wherein, The bottom driving magnet is provided with two parts, and the corresponding top driving magnet is provided with two parts; Two magnetic fields generated by the magnets are formed in the magnet driving cavity between the base and the shielding cover, and the directions of the two magnetic fields are opposite; Two arms of the driving coil are respectively arranged in the two magnetic fields; After the driving coil is electrified, the electromagnetic poles of the two arms are in the same direction; The electromagnetic field of the driving coil and the magnetic field generated by the magnets in the magnet device interact to generate a driving force for the driving coil to swing around the rotating mounting portion, and the driving coil drives the swing arm to reciprocally swing around the rotating mounting portion.

4. The dot scanning focused ultrasound cosmetic instrument according to claim 1, wherein, The rotating mounting portion of the swing arm is provided with a hinge hole, and a bearing is embedded in the hinge hole; The swing arm is rotationally connected with the base of the magnet device through the bearing.

5. The dot scanning focused ultrasound cosmetic instrument according to claim 1, wherein, A position detection device is arranged to detect the swing angle / position of the swing arm relative to the magnet device.

6. The matrix scanning focused ultrasound cosmetic instrument according to claim 5, wherein, The position detection device is a Hall detection device; A Hall element of the Hall detection device is installed on the swing arm; A detection magnet is arranged outside the shielding cover of the magnet device; The detection magnet is opposite to the Hall element; The Hall element is electrically connected with the main control board.

7. The dot scanning focused ultrasound cosmetic instrument according to claim 1, wherein, A skin capacitance detection module and an optical displacement detection module are arranged outside the focused ultrasonic transducer; The skin capacitance detection module and the optical displacement detection module are electrically connected with the main control board.

8. The dot scanning focused ultrasound cosmetic instrument according to claim 1, wherein, A surface infrared temperature detection module is arranged outside the focused ultrasonic transducer, and the surface infrared temperature detection module is electrically connected with the main control board.

Images