Electromagnetic physiotherapy instrument capable of releasing multi-point dense fine magnetic field
By employing a hollow frame, air duct design, and intelligent heat dissipation system in the magnetic therapy device, the heat dissipation problem of portable small electromagnetic physiotherapy devices has been solved, achieving efficient and safe heat dissipation.
Patent Information
- Application Number
- CN202511284124.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-09
- Publication Date
- 2025-10-28
AI Technical Summary
Existing magnetic therapy devices are difficult to integrate into portable, smaller electromagnetic physiotherapy devices while ensuring sufficient heat dissipation.
The magnetic therapy device uses a hollow frame with coils wrapped around it. The upper and lower shells form a circumferential air duct, and it is equipped with a fan, temperature sensor and control device. It achieves efficient heat dissipation through the air duct and the grip part, and uses air guides and heat-conducting materials to improve the heat dissipation effect.
It achieves effective heat dissipation in portable, smaller electromagnetic physiotherapy devices, ensuring the device's safety and aesthetics, and features intelligent adjustment of heat dissipation power and omnidirectional heat dissipation outlets, thus improving heat dissipation efficiency.
Smart Images

Figure CN120837845A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of magnetotherapy technology, and in particular to an electromagnetic therapy device that releases multiple dense fine magnetic fields. Background Technology
[0002] Current magnetic therapy devices have improved heat dissipation for both the magnetic needles and coils. For example, patent number 202120582603.2 discloses an electromagnetic coil device, including a hollow frame with coils wound around the support walls on the sides of the frame. A magnetic core is located in the hollow part of the frame, and several heat dissipation holes are provided on the support walls of the frame. This solves the problems of poor heat dissipation, excessive heat transfer from the coils to the magnetic core leading to temperature increases, and insufficient magnetic field strength in existing electromagnetic coil devices. However, in practical applications, magnetic therapy devices need to be installed inside a device with a casing. Due to limitations in heat dissipation structure, they are typically used in relatively large electromagnetic physiotherapy instruments, such as a pulsed high-magnetic physiotherapy device and chair disclosed in 202120192920.3, and a magnetic therapy treatment bed disclosed in 201720574353.1. How to integrate these devices into a portable, smaller electromagnetic physiotherapy instrument while ensuring sufficient heat dissipation is an urgent problem to be solved.
[0003] Therefore, it is necessary to propose a new type of electromagnetic physiotherapy device that releases dense fine magnetic fields at multiple points to solve the above problems, and to solve the problem of how to integrate traditional magnetic therapy devices into a portable and smaller electromagnetic physiotherapy device while ensuring sufficient heat dissipation. Summary of the Invention
[0004] This invention provides an electromagnetic physiotherapy device that releases a dense fine magnetic field at multiple points, solving the problem of how to integrate traditional magnetic therapy devices into a portable and smaller device while ensuring sufficient heat dissipation.
[0005] The technical problem solved by the present invention is achieved by adopting the following technical solutions: An electromagnetic therapy device that releases a multi-point dense fine magnetic field includes a magnetic therapy device. The magnetic therapy device includes a hollow frame with coils wound around its outer surface. Several magnetic needles are disposed within the hollow portion of the frame. The device also includes: The outer shell includes an upper shell and a lower shell, which are joined together to form an outer shell with a cavity. The magnetic therapy device is clamped in the cavity and forms a circumferential air duct with the inner wall of the outer shell. The lower shell has an opening to expose the magnetic needle tip. The upper shell and the lower shell are respectively provided with ventilation holes that connect the circumferential air duct to the outside of the outer shell. The outer shell is provided with a grip and an electrical wire hole that connects the cavity to the outside of the outer shell. The wire passes through a wire hole, one end of which is electrically connected to the coil, and the other end of which leads to the outside of the housing.
[0006] Furthermore, the ventilation hole has an extension extending into the cavity on the side near the center of the outer casing, and the end of the extension has a turning portion extending toward the edge of the outer casing.
[0007] Furthermore, it also includes a fan, which is located within a circumferential air duct.
[0008] Furthermore, it also includes a temperature sensor and a control device. The temperature sensor is installed on the magnetic therapy device to detect the temperature of the magnetic therapy device. The temperature sensor and the fan are electrically connected to the control device. The control device controls the fan to increase its output power as the temperature sensed by the temperature sensor increases.
[0009] Furthermore, the fan consists of two fans that are far apart from each other, namely the first fan and the second fan, and the two fans have opposite air outlet directions.
[0010] Furthermore, the ventilation holes include a first air inlet and a second air inlet located on both sides of the center of the lower shell, and the air outlet includes a first air outlet and a second air outlet located on both sides of the center of the upper shell. The positions of the first air inlet and the first air outlet are vertically corresponding, and the positions of the second air inlet and the second air outlet are vertically corresponding.
[0011] Furthermore, it also includes air guide vanes, which include a first air guide vane and a second air guide vane. The first air guide vane is fixed on the inner wall of the lower shell on one side of the first air inlet, and the other end of the first air guide vane extends obliquely towards the upper shell. The second air guide vane is fixed on the inner wall of the lower shell on one side of the second air inlet, and the other end of the second air guide vane extends obliquely towards the upper shell. The first air guide vane and the second air guide vane are in opposite directions of inclination and divide the circumferential air duct into a first air duct and a second air duct that are isolated from each other. The first air inlet is connected to the second air outlet through the first air duct, and the second air inlet is connected to the first air outlet through the second air duct. The first fan is located in the first air duct, and the second fan is located in the second air duct.
[0012] Furthermore, the upper shell extends outward to form an upper grip shell, and the lower shell extends outward to form a lower grip shell. After the upper shell and the lower shell are joined, the upper grip shell and the lower grip shell are joined to form the grip portion. The grip portion is an outwardly protruding arc-shaped strip, and the two ends of the grip portion are connected to the outer shell to form a clearance opening that runs through the upper and lower parts of the outer shell.
[0013] Furthermore, it also includes a pump, a pipe that is attached to the magnetic needle, and a water pipe that is attached to the inside of the grip. The pump, pipe, and water pipe are interconnected to form a water circulation loop. The pipe and water pipe are made of heat-conducting material.
[0014] Furthermore, the gripping part consists of two hollow gripping parts, namely a first gripping part and a second gripping part, with their protruding sides far apart from each other. The gripping parts are made of thermally conductive material. The first gripping part is connected to the first air duct, and the second gripping part is connected to the second air duct.
[0015] The beneficial effects of this invention are: This invention addresses the problem of integrating a magnetic therapy device into a portable, smaller electromagnetic therapy device by configuring the outer shell as an upper shell and a lower shell. The upper and lower shells are joined together to form a cavity, which holds the magnetic therapy device within the cavity and forms a circumferential airflow channel with the inner wall of the outer shell. The lower shell has an opening to expose the magnetic needle tip. The upper and lower shells each have ventilation holes that connect the circumferential airflow channel to the outside of the outer shell. The outer shell has a grip and an electrical wire hole that connects the cavity to the outside of the outer shell. The wire passes through the electrical wire hole, with one end of the wire electrically connected to the coil and the other end leading to the outside of the outer shell. The upper and lower shells can conveniently hold the magnetic therapy device, and the formed circumferential airflow channel fits the magnetic therapy device well and provides heat dissipation space. At the same time, the circumferential airflow channel dissipates heat through the ventilation holes, and the grip facilitates the movement of the electromagnetic therapy device. This invention solves the problem of how to integrate traditional magnetic therapy devices into a portable, smaller electromagnetic therapy device while ensuring sufficient heat dissipation. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a perspective view of the present invention.
[0018] Figure 2 This is a cross-sectional view of the invention along the length of the wire.
[0019] Figure 3 This is a cross-sectional view of the present invention after the wires have been removed.
[0020] Figure 4 This is an exploded view of Embodiment 1 of the present invention.
[0021] Figure 5 This is a schematic diagram of the internal structure after removing the upper shell, coil, and wires in Embodiment 2 of the present invention.
[0022] Figure 6 This is a schematic diagram of the internal structure of Embodiment 3 of the present invention after removing the upper shell, coil, and wires.
[0023] Figure 7 This is a cross-sectional view along the middle of the first grip portion and the middle of the second grip portion in Embodiment 4 of the present invention.
[0024] in: 10-Magnetic therapy device, 11-Skeleton, 12-Coil, 13-Magnetic needle, 14-Pump, 15-Pipe, 16-Water pipe, 17-Temperature sensor; 20 - Wire, 21 - Wire hole; 30 - Upper shell, 31 - First air outlet, 32 - Second air outlet; 40 - Lower shell, 41 - First air inlet, 42 - Second air inlet; 50 - cavity, 51 - first air guide vane, 52 - second air guide vane; 60 - Circumferential airflow duct, 61 - First airflow duct, 62 - Second airflow duct; 70 - Ventilation hole, 71 - Extension, 72 - Turning point; 80-Grip part, 81-First grip part, 82-Second grip part, 83-Giveaway opening; 90 - Fan, 91 - First Fan, 92 - Second Fan. Detailed Implementation
[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below with reference to specific illustrations.
[0026] Example 1, see Figures 1 to 4 An electromagnetic therapy device that releases a multi-point dense fine magnetic field includes a magnetic therapy device 10. The magnetic therapy device 10 includes a hollow frame 11, with coils 12 wound around the frame 11. A plurality of magnetic needles 13 are disposed inside the hollow part of the frame 11. The device also includes: The outer shell includes an upper shell 30 and a lower shell 40, which are joined together to form an outer shell with a cavity 50. The magnetic therapy device 10 is clamped in the cavity 50 and forms a circumferential air duct 60 with the inner wall of the outer shell. The lower shell 40 has an opening to expose the tip of the magnetic needle 13. The upper shell 30 and the lower shell 40 are respectively provided with ventilation holes 70 that connect the circumferential air duct 60 to the outside of the outer shell. The outer shell is provided with a gripping part 80 and an electrical wire hole 21 that connects the cavity 50 to the outside of the outer shell. The wire 20 passes through the wire hole 21. One end of the wire 20 is electrically connected to the coil 12, and the other end of the wire 20 leads to the outside of the outer casing.
[0027] The upper shell 30 and the lower shell 40 can conveniently hold the magnetic therapy device 10. The circumferential air duct 60 formed fits the magnetic therapy device 10 well and provides heat dissipation space. At the same time, the circumferential air duct 60 dissipates heat through ventilation holes. Its grip part 80 facilitates the movement of the electromagnetic physiotherapy device, solving the problem of how to integrate traditional magnetic therapy devices into a portable and smaller electromagnetic physiotherapy device while ensuring sufficient heat dissipation.
[0028] The ventilation hole 70 has an extension 71 extending into the cavity on the side near the center of the outer shell, and a turning portion 72 extending towards the edge of the outer shell at the end of the extension 71. The extension 71 supports the turning portion 72, providing a heat dissipation channel while also covering the ventilation hole. When small objects or water accidentally fall in from above, they will move away from the magnetic therapy device, ensuring that the magnetic therapy device operates in a safe environment. In addition, it prevents internal parts from being seen through the ventilation hole 70, making it more aesthetically pleasing.
[0029] Preferably, the upper shell 30 is inclined downward around its perimeter, and the lower shell 40 is inclined upward around its perimeter. This allows small external objects and water to flow outward, while reducing the size of the electromagnetic therapy device, making the electromagnetic therapy device flatter, and ensuring a large circumferential air duct 60.
[0030] It also includes a fan 90, which is located within the circumferential air duct 60. The fan can accelerate the dissipation of heat to the outside.
[0031] It also includes a temperature sensor 17 and a control device. The temperature sensor 17 is mounted on the magnetic therapy device 10 to detect the temperature of the magnetic therapy device 10. The temperature sensor 17 and the fan 90 are electrically connected to the control device. As the temperature sensed by the temperature sensor 17 increases, the control device controls the fan 90 to increase its output power. This allows for intelligent and automatic adjustment of heat dissipation power as needed, resulting in greater energy savings.
[0032] The fan 90 consists of two fans 90 that are far apart from each other, namely the first fan 91 and the second fan 92, with opposite air outlet directions. This creates a stronger vortex within the circumferential air duct 60, resulting in better heat dissipation.
[0033] The ventilation holes 70 include a first air inlet 41 and a second air inlet 42 located on both sides of the center of the lower shell 40, and the air outlets include a first air outlet 31 and a second air outlet 32 located on both sides of the center of the upper shell 30. The first air inlet 41 and the first air outlet 31 are vertically corresponding, and the second air inlet 42 and the second air outlet 32 are vertically corresponding. This provides a more comprehensive heat dissipation outlet.
[0034] The upper shell 30 extends outward to form an upper grip shell, and the lower shell 40 extends outward to form a lower grip shell. After the upper shell 30 and the lower shell 40 are joined, the upper grip shell and the lower grip shell are joined to form the grip portion 80. The grip portion 80 is an outwardly convex arc-shaped strip, and both ends of the grip portion 80 are connected to the outer shell to form clearance openings 83 that penetrate the upper and lower parts of the outer shell. This makes it easier to grip, provides a good grip feel, and makes the whole unit more integrated, with higher strength for the grip portion 80.
[0035] Example 2, see Figure 5Unlike Embodiment 1, this embodiment also includes air guide vanes, which include a first air guide vane 51 and a second air guide vane 52. The first air guide vane 51 is fixed on the inner wall of the lower shell 40 on one side of the first air inlet 41, and the other end of the first air guide vane 51 extends obliquely towards the upper shell 30. The second air guide vane 52 is fixed on the inner wall of the lower shell 40 on one side of the second air inlet 42, and the other end of the second air guide vane 52 extends obliquely towards the upper shell 30. The first air guide vane 51 and the second air guide vane 52 are in opposite directions and divide the circumferential air duct 60 into a first air duct 61 and a second air duct 62 that are isolated from each other. The first air inlet 41 is connected to the second air outlet 32 through the first air duct 61, and the second air inlet 42 is connected to the first air outlet 31 through the second air duct 62. The first fan 91 is disposed in the first air duct 61, and the second fan 92 is disposed in the second air duct 62. In use, the first fan 91 and the second fan 92 are activated, and the first air duct 61 and the second air duct 62 respectively generate cooling air. External air enters through the first air inlet 41 and exits through the first air duct 61 and the second air outlet 32; external air enters through the second air inlet 42 and exits through the second air duct 62 and the first air outlet 31. In this way, all internal hot air is discharged from the upper shell 30, and the entire circumferential air duct 60 is used for heat dissipation, so the coil 12 is fully cooled, resulting in good heat dissipation effect.
[0036] Example 3, see Figure 6 Unlike Embodiments 1 and 2, the gripping portion 80 consists of two hollow gripping portions 80, namely a first gripping portion 81 and a second gripping portion 82, with their protruding sides facing away from each other. The gripping portions 80 are made of thermally conductive material. The first gripping portion 81 is connected to the first air duct 61, and the second gripping portion 82 is connected to the second air duct 62. In this way, the gripping portion 80 participates in heat dissipation as a heat sink, further improving the heat dissipation effect. This gripping portion 80 has both gripping and heat dissipation functions, reducing the space occupied by the heat sink. Specifically, external air enters through the first air inlet 41, exits through the first air duct 61 and the second air outlet 32, and also exits through the first gripping portion 81 and the second air outlet 32; external air enters through the second air inlet 42, exits through the second air duct 62 and the first air outlet 31, and also exits through the first gripping portion 81 and the first air outlet 31.
[0037] Example 4, see Figure 7 Unlike other embodiments, this embodiment also includes a pump 14, a pipe 15 that is attached to the magnetic needle 13, and a water pipe 16 that is attached to the inside of the grip portion 80. The pump 14, pipe 15, and water pipe 16 are interconnected to form a water circulation loop. The pipe 15 and water pipe 16 are made of thermally conductive material. The grip portion 80, to which the water pipe 16 is attached, dissipates heat from the water pipe 16, thereby achieving water cooling for the magnetic needle 13.
[0038] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. An electromagnetic physiotherapy device that releases a multi-point dense fine magnetic field, comprising a magnetic therapy device (10), the magnetic therapy device (10) comprising a hollow frame (11), a coil (12) wound around the frame (11), and a plurality of magnetic needles (13) disposed within the hollow portion of the frame (11), characterized in that, Also includes: The outer shell includes an upper shell (30) and a lower shell (40). The upper shell (30) and the lower shell (40) are joined together to form an outer shell with a cavity (50). The magnetic therapy device (10) is clamped in the cavity (50) and forms a circumferential air duct (60) with the inner wall of the outer shell. The lower shell (40) is provided with an opening to expose the tip of the magnetic needle (13). The upper shell (30) and the lower shell (40) are respectively provided with ventilation holes (70) that connect the circumferential air duct (60) to the outside of the outer shell. The outer shell is provided with a gripping part (80) and an electrical wire hole (21) that connects the cavity (50) to the outside of the outer shell. The wire (20) passes through the wire hole (21), one end of the wire (20) is electrically connected to the coil (12), and the other end of the wire (20) leads to the outside of the casing.
2. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 1, characterized in that: The ventilation hole (70) has an extension (71) extending into the cavity on the side near the center of the outer shell, and the end of the extension (71) has a turning part (72) extending toward the edge of the outer shell.
3. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 1, characterized in that: It also includes a fan (90), which is located in a circumferential air duct (60).
4. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 3, characterized in that: It also includes a temperature sensor (17) and a control device. The temperature sensor (17) is installed on the magnetic therapy device (10) to detect the temperature of the magnetic therapy device (10). The temperature sensor (17) and the fan (90) are electrically connected to the control device. The control device controls the fan (90) to increase its output power as the temperature sensed by the temperature sensor (17) increases.
5. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 3, characterized in that: The fan (90) consists of two fans (90) that are far apart from each other, namely the first fan (91) and the second fan (92), and the two fans have opposite air outlet directions.
6. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 5, characterized in that: The ventilation holes (70) include a first air inlet (41) and a second air inlet (42) located on both sides of the center of the lower shell (40), and the air outlet holes include a first air outlet (31) and a second air outlet (32) located on both sides of the center of the upper shell (30). The first air inlet (41) and the first air outlet (31) are vertically corresponding, and the second air inlet (42) and the second air outlet (32) are vertically corresponding.
7. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 6, characterized in that: It also includes air guide vanes, which include a first air guide vane (51) and a second air guide vane (52). The first air guide vane (51) is fixed on the inner wall of the lower shell (40) on one side of the first air inlet (41), and the other end of the first air guide vane (51) extends obliquely towards the upper shell (30). The second air guide vane (52) is fixed on the inner wall of the lower shell (40) on one side of the second air inlet (42), and the other end of the second air guide vane (52) extends obliquely towards the upper shell (30). 1) The circumferential air duct (60) is divided into a first air duct (61) and a second air duct (62) that are isolated from each other, opposite to the tilt direction of the second air guide (52). The first air inlet (41) is connected to the second air outlet (32) through the first air duct (61), and the second air inlet (42) is connected to the first air outlet (31) through the second air duct (62). The first fan (91) is located in the first air duct (61), and the second fan (92) is located in the second air duct (62).
8. The electromagnetic physiotherapy device with multi-point dense fine magnetic field release according to claim 7, characterized in that: The upper shell (30) extends outward to form an upper grip shell, and the lower shell (40) extends outward to form a lower grip shell. After the upper shell (30) and the lower shell (40) are joined, the upper grip shell and the lower grip shell are joined to form the grip part (80). The grip part (80) is an outwardly protruding arc-shaped strip. The two ends of the grip part (80) are connected to the outer shell to form a clearance opening (83) that runs through the upper and lower parts of the outer shell.
9. The electromagnetic physiotherapy device with the function of releasing a multi-point dense fine magnetic field according to claim 1, characterized in that: It also includes a pump (14), a pipe (15) that fits into the magnetic needle (13), and a water pipe (16) that fits into the inside of the grip (80). The pump (14), pipe (15), and water pipe (16) are interconnected to form a water circulation loop. The pipe (15) and water pipe (16) are made of heat-conducting materials.
10. The electromagnetic physiotherapy device with the function of releasing a multi-point dense fine magnetic field according to claim 8 or 9, characterized in that: The gripping part (80) consists of two hollow gripping parts (80), namely the first gripping part (81) and the second gripping part (82), with their protruding sides far apart from each other. The gripping part (80) is made of thermally conductive material. The first gripping part (81) is connected to the first air duct (61), and the second gripping part (82) is connected to the second air duct (62).
Citation Information
Patent Citations
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