A cooling circulation device and cooling method for magnetic therapy equipment

By connecting the cooling circulation devices in series, the problems of complex coolant pipelines and high noise in magnetic therapy equipment are solved, and a cooling effect with efficient heat dissipation and low noise is achieved.

CN116528556BActive Publication Date: 2025-09-09SUZHOU HAOBRO MEDICAL DEVICE
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Patent Information

Application Number
CN202310510484.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-08
Publication Date
2025-09-09
Estimated Expiration
2043-05-08

AI Technical Summary

Technical Problem

The independent liquid cooling of adjacent magnetic therapy heads in existing magnetic therapy equipment leads to a complex coolant pipeline layout, limited cooling effect, and high noise levels in air cooling and liquid cooling, which affects the user experience.

Method used

A cooling circulation device connected in series is used, including a cooling box, a driving pump, a tee, a cold row and a magnetic therapy head. The coolant circulation path is used to increase the heat dissipation efficiency, and air cooling is assisted by temperature sensors and fans to control heat dissipation. The driving pump is placed in the cooling box to reduce noise.

Benefits of technology

The invention realizes efficient heat dissipation inside the magnetic therapy equipment, reduces noise, simplifies the layout of the coolant pipeline, and improves the heat dissipation efficiency of the coolant and the stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a cooling circulation device for magnetic therapy equipment, comprising a cooling box for accommodating coolant, a driving pump installed inside the cooling box, a tee and a cold row arranged outside the cooling box, and a first magnetic therapy head and a second magnetic therapy head arranged outside the cooling box; the driving pump, the tee, the cold row, the first magnetic therapy head and the second magnetic therapy head are connected in series, and are connected in series by connecting pipes. This technical solution connects the driving pump, the tee, the cold row, the first magnetic therapy head and the second magnetic therapy head in series to form a loop, and circulates the coolant placed inside the cooling box and then flows back into the cooling box; the heated coolant is not only cooled by the cold row connected in series in the loop, but also dissipated in the multiple connecting pipes that transport the coolant; when a single magnetic therapy head is working, the other magnetic therapy head can also assist the coolant in dissipating heat, thereby making the cooling circulation device of the magnetic therapy equipment have efficient heat dissipation characteristics.
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Description

Technical Field

[0001] The present invention relates to the field of magnetic therapy equipment, and in particular to a cooling circulation device and a cooling method for magnetic therapy equipment. Background Art

[0002] Magnetic therapy devices use instantaneous discharges from coils to generate high-intensity magnetic fields, which act on acupuncture points and nerves. When the device is operating, the coils within it rapidly heat up, affecting the intensity and direction of the magnetic field and potentially causing burns to the affected area.

[0003] Most existing magnetic therapy devices use air cooling for temperature reduction, which results in high noise levels and affects the user environment. Some magnetic therapy devices use liquid cooling to cool the magnetic therapy heads. However, since adjacent magnetic therapy heads are cooled independently, the layout of the cooling liquid delivery pipelines becomes complex and the cooling effect is limited, which in turn affects the operating time of the magnetic therapy heads. Furthermore, the external placement of the coolant delivery pump affects the heat dissipation of the infusion pipeline and the noise generated by the pump. Therefore, a cooling circulation device and cooling method for magnetic therapy devices are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that adjacent magnetic therapy heads cannot be liquid-cooled together and the problem of internal heat dissipation of magnetic therapy equipment, and thus propose a cooling circulation device and cooling method for magnetic therapy equipment.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A cooling circulation device for magnetic therapy equipment comprises a cooling box for accommodating coolant, a driving pump installed inside the cooling box, a tee and a cold row arranged outside the cooling box, and a first magnetic therapy head and a second magnetic therapy head arranged outside the cooling box; the driving pump, the tee, the cold row, the first magnetic therapy head and the second magnetic therapy head are connected in series and connected in series with each other by a connecting pipe; the tee is also equipped with a temperature sensor for monitoring the temperature of the coolant; the cooling box is a box structure with a regular structure and an opening is provided at the upper end; the upper end of the cooling box is also equipped with a box cover for sealing the opening; the end surface of the box cover is also equipped with a first adapter for installing the connecting pipe and a middle plate for installing the driving pump, the middle plate is located inside the cooling box and is horizontally arranged; the horizontal part of the middle plate is equipped with the driving pump; the lower end of the driving pump passes through the middle plate, and the upper end of the driving pump is fixed to the middle plate; the lower end of the driving pump is a motor, and the lower end of the driving pump is completely placed in the coolant.

[0007] Preferably, a flow switch is also installed on the middle plate; and the middle plate is at least one of a bent plate and a straight plate structure.

[0008] Preferably, the driving pump includes a first pump body, a second pump body and a third pump body; the tee includes a tee S1, a tee S2, a tee S3 and a tee S4, wherein the tee S1, the tee S2, the tee S3 and the tee S4 are all equipped with temperature sensors; the radiator includes a first radiator and a second radiator, and the first and second radiators are respectively equipped with a first fan and a second fan.

[0009] Preferably, the connecting tubes include infusion tube A, infusion tube B, infusion tube C, infusion tube D, infusion tube E, infusion tube F, infusion tube G, infusion tube H, infusion tube I, infusion tube J and infusion tube K; the output end of the first pump body is connected to the infusion tube A, and is connected to the first magnetic therapy head via the infusion tube A; the interior of the first magnetic therapy head is also equipped with an infusion tube B for outputting coolant, and is connected to the second pump body via the infusion tube B; the output end of the second pump body is also connected to the infusion tube C, and is connected to the tee S1 via the infusion tube C; the output end of the tee S1 is also connected to the infusion tube D, and is connected to the first radiator via the infusion tube D; the output end of the first radiator It is connected to an infusion tube E, and is connected to a tee S2 via the infusion tube E; the output end of the tee S2 is connected to an infusion tube F, and is connected to a second magnetic therapy head via the infusion tube F; an infusion tube G is also installed side by side inside the second magnetic therapy head, and is connected to a third pump body via the infusion tube G; the output end of the third pump body is connected to an infusion tube H, and is connected to a tee S3 via the infusion tube H; the output end of the tee S3 is also connected to an infusion tube I, and is connected to a second cold row via the infusion tube I; the output end of the second cold row is connected to an infusion tube J, and is connected to a tee S4 via the infusion tube J; the output end of the tee S4 is connected to an infusion tube K, and is connected to a cooling box via the infusion tube K.

[0010] Preferably, one end of the infusion tube K is fixed on the tee S4, and the other end passes through the cooling box, and the infusion tube K and the cooling box are fixed to each other; a flow switch is also installed on the infusion tube K; and a liquid level meter is also installed on the side wall of the cooling box.

[0011] A cooling circulation device for magnetic therapy equipment includes a cooling box for containing coolant, a driving pump installed inside the cooling box, a tee and a cold row arranged outside the cooling box, and a first magnetic therapy head and a second magnetic therapy head arranged outside the cooling box; the driving pump, the tee, the cold row, the first magnetic therapy head and the second magnetic therapy head are connected in series and connected in series with each other using connecting pipes; the tee is also equipped with a temperature sensor for monitoring the temperature of the coolant.

[0012] Preferably, the cooling box is a box structure with a regular structure, and an opening is provided at the upper end; a box cover for sealing the opening is also installed at the upper end of the cooling box.

[0013] Preferably, a first adapter for installing a connecting pipe and a middle plate for installing a driving pump are also installed on the end surface of the box cover. The middle plate is located inside the cooling box and is arranged horizontally.

[0014] Preferably, a flow switch is also installed on the middle plate; and the middle plate is at least one of a bent plate and a straight plate structure.

[0015] Preferably, the driving pump includes a first pump body, a second pump body and a third pump body; the tee includes a tee S1, a tee S2, a tee S3 and a tee S4, wherein the tee S1, the tee S2, the tee S3 and the tee S4 are all equipped with temperature sensors; the radiator includes a first radiator and a second radiator, and the first and second radiators are respectively equipped with a first fan and a second fan.

[0016] Preferably, the connecting tubes include infusion tube A, infusion tube B, infusion tube C, infusion tube D, infusion tube E, infusion tube F, infusion tube G, infusion tube H, infusion tube I, infusion tube J and infusion tube K; the output end of the first pump body is connected to the infusion tube A, and is connected to the first magnetic therapy head via the infusion tube A; the interior of the first magnetic therapy head is also equipped with an infusion tube B for outputting coolant, and is connected to the second pump body via the infusion tube B; the output end of the second pump body is also connected to the infusion tube C, and is connected to the tee S1 via the infusion tube C; the output end of the tee S1 is also connected to the infusion tube D, and is connected to the first radiator via the infusion tube D; the output end of the first radiator The output end is connected to an infusion tube E, and is connected to a tee S2 via the infusion tube E; the output end of the tee S2 is connected to an infusion tube F, and is connected to a second magnetic therapy head via the infusion tube F; an infusion tube G is also installed side by side inside the second magnetic therapy head, and is connected to a third pump body via the infusion tube G; the output end of the third pump body is connected to an infusion tube H, and is connected to a tee S3 via the infusion tube H; the output end of the tee S3 is also connected to an infusion tube I, and is connected to a second cold row via the infusion tube I; the output end of the second cold row is connected to an infusion tube J, and is connected to a tee S4 via the infusion tube J; the output end of the tee S4 is connected to an infusion tube K, and is connected to a cooling box via the infusion tube K.

[0017] Preferably, one end of the infusion tube K is fixed on the tee S4, and the other end passes through the cooling box, and the infusion tube K and the cooling box are fixed to each other; a flow switch is also installed on the infusion tube K; and a liquid level meter is also installed on the side wall of the cooling box.

[0018] A cooling method for magnetic therapy equipment, characterized by comprising the following steps:

[0019] S01: Under a room temperature environment not higher than 35°C, the driving pump installed inside the cooling box is started. The driving pump transports the coolant inside the cooling box to the first magnetic therapy head and the second magnetic therapy head arranged in series. The temperature of the coolant flowing through the three-way valve is monitored and recorded, and the coolant is finally returned to the interior of the cooling box and continuously circulated;

[0020] S02: When the magnetic therapy head is driven to work, the operating states of the first fan on the first cooling row and the second fan on the second cooling row are controlled through the temperature monitoring of the three-way S1, the three-way S2, the three-way S3 and the three-way S4;

[0021] S03: When the magnetic therapy head stops working, the driving pump installed inside the cooling box continues to work for 3-10 minutes, and the temperature of the coolant delivered to the inside of the tee is not higher than 35℃;

[0022] S04: Subsequently, when the temperature of the coolant is not higher than 35° C., the driving pumps placed inside the cooling box stop working; that is, the first pump body, the second pump body and the third pump body stop working.

[0023] Preferably, step S02 includes:

[0024] S021: When both magnetic therapy heads are driven to operate, and the coolant temperature T1 monitored by the tee S1 is lower than the standard temperature T01 set by the tee S1, the first fan installed on the first radiator and the second fan installed on the second radiator do not operate. The coolant output from the second radiator flows back to the interior of the cooling box through the tee S4 and the flow switch, and the coolant continues to circulate. The calibrated temperature value of T01 is 32°C.

[0025] S022: When the circulating coolant is delivered to the tee S1 again, and the coolant temperature T1 monitored by the tee S1 is not less than the set standard temperature T01, the first fan installed on the first radiator starts to work, and the coolant after dissipating heat through the first radiator enters the tee S2. The coolant temperature T2 detected by the tee S2 is less than the standard temperature T01 set by the tee S1. Then the coolant is delivered to the interior of the second magnetic therapy head and continues to circulate;

[0026] S023: When the coolant temperature T2 detected by the tee S2 is not less than the standard temperature T01 set by the tee S1, the first fan works at a high gear and the second fan works at a low gear;

[0027] S024: After the circulating coolant is output from the second magnetic therapy head and delivered to the tee S3, when the temperature monitored by the tee S3 is not less than the calibrated temperature T01 set by the tee S3, the second fan installed on the second radiator starts to work, and the coolant continues to circulate;

[0028] S025: When the circulating coolant is delivered to the tee S4 again, and the temperature monitored by the tee S4 is not less than the calibrated temperature T01 set by the tee S1, the second fan installed on the second radiator operates at a high speed, and the coolant enters the cooling box through the flow switch and continues to circulate;

[0029] S026: When the circulating coolant is delivered to the tee S1 again, and the temperature T1 detected by the tee S1 is not less than 43° C., the first magnetic therapy head is stopped and the second magnetic therapy head is started at the same time.

[0030] Preferably, the speeds of the first fan and the second fan in step S02 are adjustable in multiple gears.

[0031] Beneficial effect: This technical solution connects the driving pump, the tee, the cold row, the first magnetic therapy head and the second magnetic therapy head in series to form a loop, so that the two adjacent magnetic therapy heads are jointly liquid-cooled, which is convenient for sorting and arranging the connecting pipes inside the magnetic therapy equipment, and at the same time increases the path for the coolant to circulate in the connecting pipe; because the driving pump for the bulged coolant is placed inside the cooling box, the heat generated by the driving pump does not affect the heat dissipation of the connecting pipe outside the cooling box, and the heat dissipation efficiency of the coolant in the flow cycle is improved due to the increase in the circulation path of the coolant; the coolant that brings the heat out of the internal magnetic therapy head is not only quickly cooled by the cold row in series in the loop, but also in the connection pipes for transporting the coolant in multiple sections. The heat is dissipated in the tube, thereby accelerating the heat dissipation efficiency of the coolant; when a single magnetic therapy head is working, the other magnetic therapy head can also assist the coolant in dissipating heat, further making the cooling circulation device of the magnetic therapy equipment have efficient heat dissipation characteristics; the driving pump placed inside the cooling box is fixed on the box cover through the middle plate, the heat generated by the driving pump is absorbed by the coolant, and the vibration generated by the driving pump acts on the box cover through the middle plate, and finally acts on the box body, thereby significantly reducing the noise generated by the driving pump of the magnetic therapy equipment; the real-time temperature of the coolant is monitored by the temperature sensor on the tee to control whether the magnetic therapy head can work normally, and at the same time control the working state of the fan installed on the radiator, further reducing the working noise of the magnetic therapy equipment and reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural block diagram of a cooling circulation device for magnetic therapy equipment proposed by the present invention;

[0033] Figure 2This is a structural block diagram of a box cover for a cooling circulation device for magnetic therapy equipment proposed by the present invention;

[0034] Figure 3 A perspective view of a cooling circulation device for magnetic therapy equipment proposed by the present invention;

[0035] Figure 4 A top view of a cooling circulation device for magnetic therapy equipment proposed by the present invention;

[0036] Figure 5 A top view of a cooling box of a cooling circulation device for magnetic therapy equipment proposed by the present invention;

[0037] Figure 6 for Figure 5 Cross-sectional view at PP.

[0038] Legend:

[0039] 1. Cooling box; 11. Box cover; 111. First adapter; 12. Middle plate; 2. First magnetic therapy head; 3. First radiator; 30. First fan; 4. Second magnetic therapy head; 5. Second radiator; 50. Second fan; 6. Second adapter; 71. First pump body; 72. Second pump body; 73. Third pump body; 8. Liquid level meter; 9. Flow switch; 10. Temperature sensor. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. It is obvious that the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0042] Reference Figure 1-6 The present invention provides an embodiment of a cooling circulation device for magnetic therapy equipment, comprising a cooling box 1 for containing a coolant, a driving pump installed inside the cooling box 1 and a connecting pipe for conveying the coolant, a magnetic therapy head cooled by the coolant, a tee with a temperature monitoring function, and a cold radiator for cooling the coolant;

[0043] The driving pump, tee, radiator, first magnetic therapy head 2 and second magnetic therapy head 4 are connected in series and connected in series with each other using connecting pipes;

[0044] The cooling row includes a first cooling row 3 and a second cooling row 5. The first cooling row 3 is equipped with a first fan 30, and the second cooling row 5 is equipped with a second fan 50.

[0045] The tees include a tee S1 for installing the temperature sensor 10, a tee S2 for installing the temperature sensor 10, a tee S3 for installing the temperature sensor 10, and a tee S4 for installing the temperature sensor 10;

[0046] The magnetotherapy head includes a first magnetotherapy head 2 and a second magnetotherapy head 4;

[0047] The connecting tubes include infusion tube A, infusion tube B, infusion tube C, infusion tube D, infusion tube E, infusion tube F, infusion tube G, infusion tube H, infusion tube I, infusion tube J and infusion tube K;

[0048] The coolant is one of alcohol type, glycerin type and ethylene glycol type;

[0049] The cooling box 1 is a box structure with a regular structure and an opening at the top;

[0050] The cooling box 1 in this embodiment is a box structure with a rectangular upper end surface, and the area of ​​the upper end surface is larger than the area of ​​the lower end surface. However, the shape of the cooling box 1 is not limited to a frustum with a rectangular end surface. The cooling box 1 can also be a box structure with a circular upper end surface, a box structure with a square upper end surface, or a box structure with a waist-shaped upper end surface, wherein the top angle of the box is a right-angle structure or an arc structure.

[0051] A liquid level gauge 8 is also installed on the side wall of the cooling box 1;

[0052] The upper end of the cooling box 1 is fixedly connected with a box cover 11 for sealing the opening, wherein the box cover 11 and the cooling box 1 have matching sizes and are plate-shaped;

[0053] The end surface of the box cover 11 is also equipped with a first adapter 111 for installing a connecting pipe and a middle plate 12 for installing a driving pump; wherein the first adapter 111 and the box cover 11 are integrally connected or detachably connected; the middle plate 12 and the box cover 11 are integrally connected or detachably connected;

[0054] The middle plate 12 is located inside the cooling box 1 and is arranged horizontally;

[0055] The middle plate 12 is at least one of a bent plate and a straight plate structure; when the middle plate 12 is a bent plate structure, the end of the middle plate 12 is bent and formed, and the end is fixed to the box cover 11; when the middle plate 12 is a straight plate structure, the number of straight plates is at least 2, and the ends of adjacent straight plates are fixed to each other, wherein the straight plates that are not arranged horizontally are fixed to the end cover 11; when the middle plate 12 is a single bent plate and a single straight plate structure, the ends of the bent plate and the straight plate are fixed to each other, and the other ends of the bent plate and the straight plate are both fixed to the box cover 1;

[0056] The horizontal portion of the middle plate 12 is provided with a driving pump and a flow switch 9;

[0057] The lower end of the driving pump passes through the middle plate 12, and the upper end of the driving pump is fixed on the middle plate 12;

[0058] The lower end of the driving pump is a motor, and the lower end of the driving pump is completely placed in the coolant to dissipate heat from the lower end of the driving pump. The driving pump in this embodiment is suspended and does not directly contact the cooling box 1. However, the driving pump is not limited to being suspended in the cooling box 1 in this embodiment, and can also be abutted against the cooling box 1.

[0059] The driving pump includes a first pump body 71, a second pump body 72 and a third pump body 73. In this embodiment, the first pump body 71, the second pump body 72 and the third pump body 73 are all fixed on the middle plate 12, wherein the input end of the first pump body 71 is also installed with an infusion tube;

[0060] The output end of the first pump body 71 is connected to the infusion tube A, and is connected to the first magnetic therapy head 2 through the infusion tube A;

[0061] The infusion tube A is fixed inside the first magnetic therapy head 2 and cools the first magnetic therapy head 2 by outputting cooling liquid;

[0062] The infusion tube A in this embodiment has either a single-stage structure or a double-stage structure. When the infusion tube A has a single-stage structure, the infusion tube A passes through the cooling box 1 and its end is fixed to the input end of the first pump body 71, wherein the infusion tube A and the cooling box 1 are fixed to each other. When the infusion tube A has a double-stage structure, the two sections of the infusion tube A are further fixed to the first adapter 111, and the other ends of the two sections of the infusion tube A are respectively fixed to the first magnetic therapy head 2 and the first pump body 71. In this embodiment, the first adapter 111 is fixed to the box cover 11.

[0063] The first magnetic therapy head 2 is also provided with a cooling liquid infusion tube B installed side by side, and is connected to a second pump body 72 via the infusion tube B.

[0064] The infusion tube B in this embodiment has either a single-stage structure or a double-stage structure. When the infusion tube B has a single-stage structure, the infusion tube B passes through the cooling box 1 and its end is fixed to the input end of the second pump body 72, wherein the infusion tube B and the cooling box 1 are fixed to each other. When the infusion tube B has a double-stage structure, the two sections of the infusion tube B are fixedly mounted on the first adapter 111, and the other ends of the two sections of the infusion tube B are respectively fixed to the first magnetic therapy head 2 and the second pump body 72. In this embodiment, the first adapter 111 is fixed to the box cover 11.

[0065] The output end of the second pump body 72 is also connected to an infusion tube C, and is connected to a tee S1 via the infusion tube C;

[0066] The infusion tube C is fixed to the input end of the tee S1;

[0067] The infusion tube C in this embodiment has either a single-stage structure or a double-stage structure. When the infusion tube C has a single-stage structure, the infusion tube C passes through the cooling box 1, and the end portion is fixed to the tee S1, wherein the infusion tube C and the cooling box 1 are fixed to each other. When the infusion tube C has a double-stage structure, the two sections of the infusion tube C are further fixedly mounted on the first adapter 111, and the other ends of the two sections of the infusion tube C are respectively fixed to the second pump body 72 and the tee S1. In this embodiment, the first adapter 111 is fixed to the box cover 11.

[0068] The output end of the tee S1 is also connected to a liquid infusion pipe D, and is connected to a first cooling radiator 3 for cooling the coolant via the liquid infusion pipe D;

[0069] The infusion tube D is fixed to the input end of the first cooling row 3;

[0070] The output end of the first cooling radiator 3 is also connected to a liquid infusion pipe E, and is connected to a tee S2 via the liquid infusion pipe E;

[0071] The infusion tube E is fixed to the input end of the tee S2;

[0072] The output end of the three-way valve S2 is also connected to an infusion tube F, and the second magnetic therapy head 4 is connected via the infusion tube F;

[0073] The output end of the infusion tube F is fixed inside the second magnetic therapy head 4 whose internal space is sealed;

[0074] The interior of the second magnetic therapy head 4 is also fixedly connected in parallel with an infusion tube G for discharging the cooling liquid, and is also connected to a third pump body 73 via the infusion tube G;

[0075] The infusion tube G in this embodiment has either a single-stage structure or a double-stage structure. When the infusion tube G has a single-stage structure, the infusion tube G passes through the cooling box 1 and its end is fixed to the input end of the third pump body 73, wherein the infusion tube G and the cooling box 1 are fixed to each other. When the infusion tube G has a double-stage structure, the two sections of the infusion tube G are further fixedly mounted on the first adapter 111, and the other ends of the two sections of the infusion tube G are respectively fixed to the second magnetic therapy head 4 and the third pump body 73. In this embodiment, the first adapter 111 is fixed to the box cover 11.

[0076] The infusion tubes G, F, B, and A also pass through second adapters 6. Two second adapters 6 are provided, one on each side of the first magnetic therapy head 2 and the other on the other side of the second magnetic therapy head 4. In this embodiment, the second adapters 6 do not directly contact the first magnetic therapy head 2 and the second magnetic therapy head 4. Instead, the second adapters 6 are mounted on the housing of the magnetic therapy device.

[0077] The output end of the third pump body 73 is also connected to an infusion tube H, and is connected to a tee S3 via the infusion tube H;

[0078] The infusion tube H in this embodiment has either a single-stage structure or a double-stage structure. When the infusion tube H has a single-stage structure, the infusion tube H passes through the cooling box 1, and the end portion is fixed to the input end of the third pump body 73, wherein the infusion tube H and the cooling box 1 are fixed to each other. When the infusion tube H has a double-stage structure, the two sections of the infusion tube H are further fixedly mounted on the first adapter 111, and the other ends of the two sections of the infusion tube H are respectively fixed to the third pump body 73 and the tee S3. In this embodiment, the first adapter 111 is fixed to the box cover 11.

[0079] The output end of the tee S3 is also connected to an infusion tube 1, and is connected to a second cold row 5 via the infusion tube 1;

[0080] The two ends of the infusion tube 1 are respectively fixed on the tee S3 and the second cold row 5;

[0081] The output end of the second cooling radiator 5 is also connected to a liquid infusion tube J, and is connected to a tee S4 via the liquid infusion tube J;

[0082] The two ends of the infusion tube J are respectively fixed on the second cooling row 5 and the tee S4;

[0083] The output end of the tee S4 is also connected to a liquid infusion tube K, and is connected to a cooling box 1 via the liquid infusion tube K;

[0084] One end of the infusion tube K is fixed to the tee S4, and the other end passes through the cooling box 1, and the infusion tube K and the cooling box 1 are fixed to each other;

[0085] The infusion tube K is also equipped with a flow switch 9, which is placed inside the cooling box 1, and the flow switch 9 and the tee S4 are connected in series.

[0086] The tees S1, S2, S3 and S4 are all equipped with temperature sensors 10 for detecting the temperature of the coolant. The tees in this embodiment are adapters, and the installation of temperature sensors facilitates the detection of the temperature of the transported coolant.

[0087] In this embodiment, the orifice sizes of infusion tubes A, B, F, and G are identical. This identical orifice size does not affect the heat dissipation of the first and second magnetic therapy heads 2, 4. In summary, the cooling device comprises a coolant, a drive pump, connecting pipes, and a radiator, wherein the radiator comprises a first radiator 3 and a second radiator 5. The drive pump delivers the coolant through the connecting pipes to the interior of the magnetic therapy heads for heat exchange. The device, in conjunction with a temperature sensor 10 located on a tee, monitors the temperature of the coolant before and after the radiator is discharged, providing data feedback. Example 2

[0088] refer to Figure 1-6 As shown, the difference between this embodiment and the first embodiment is that the orifice sizes of the infusion tubes B and G are respectively smaller than the orifice sizes of the infusion tubes A and F.

[0089] In this embodiment, the orifice sizes of the infusion tubes B and G for outputting the cooling liquid are set to be smaller than the orifice sizes of the infusion tubes A and F, so that the cooling liquid entering the first magnetic therapy head 2 and the second magnetic therapy head 4 respectively can fully contact the heat-generating components and bring out the heat inside the first magnetic therapy head 2 and the second magnetic therapy head 4. Example 3

[0090] refer to Figure 1-6 As shown, the difference between this embodiment and embodiment 1 is that the orifice sizes of the infusion tube B and the infusion tube G are respectively smaller than the orifice sizes of the infusion tube A and the infusion tube F, wherein the orifice sizes of the infusion tube A and the infusion tube F are different.

[0091] The size of the infusion tube A and the size of the infusion tube F in this embodiment are different, and they will not affect the delivery of the coolant to each other, but the different sizes of the tube openings of the infusion tube A and the infusion tube F may increase the production cost of the connecting tube. Example 4

[0092] refer to Figure 1-6 As shown, the present invention also provides a cooling circulation method for magnetic therapy equipment, comprising the following steps:

[0093] S01: Under a room temperature environment not higher than 35°C, a driving pump installed inside the cooling box 1 is started. The driving pump delivers the coolant inside the cooling box 1 to the first magnetic therapy head 2 and the second magnetic therapy head 4 arranged in series. The temperature of the coolant flowing through the tee is monitored and recorded, and the coolant finally flows back to the interior of the cooling box 1 and continues to circulate;

[0094] Specifically, when the driving pump starts working, the first pump body 71 installed inside the cooling box 1 pumps the coolant inside the cooling box 1 into the interior of the first magnetic therapy head 2; and under the action of the second pump body 72, the coolant pumped out of the first magnetic therapy head 2 is pumped into the tee S1 with a temperature monitoring function, and the coolant flowing through the tee S1 is transported to the first cooling radiator 3; then, the coolant is heat-dissipated by the first cooling radiator 3 and transported to the tee S2 with a temperature monitoring function, and the coolant flowing through the tee S2 is then transported to the interior of the second magnetic therapy head 4; then, under the power supplement of the third pump body 73, the coolant pumped out of the second magnetic therapy head 4 is pumped into the tee S3 with a temperature monitoring function, and the coolant flowing through the tee S3 is then transported to the second cooling radiator 5; the coolant pumped into the second cooling radiator 5 quickly dissipates heat and is transported to the tee S4 with a temperature monitoring function, and the coolant flowing through the tee S4 is transported to the flow switch 9 in the passage state and flows back to the interior of the cooling box 1;

[0095] S02: When the magnetic therapy head is driven to work, the operating states of the first fan 30 on the first cooling row 3 and the second fan 50 on the second cooling row 5 are controlled through the temperature monitoring of the three-way valve S1, the three-way valve S2, the three-way valve S3 and the three-way valve S4; the speeds of the first fan 30 and the second fan 50 are adjustable in multiple gears;

[0096] S021: When the first magnetic therapy head 2 is driven alone and the coolant temperature T1 monitored by the tee S1 is lower than the standard temperature T01 set by the tee S1, the first fan 30 and the second fan 50 are deactivated. The coolant output from the second radiator 5 then flows back to the interior of the cooling box 1 through the tee S4 and the flow switch 9, and the coolant continues to circulate. The calibrated temperature T01 is 32°C.

[0097] S022: When the temperature T1 of the coolant monitored by the tee S1 is not less than the set standard temperature T01, the first fan 30 installed on the first cooling radiator 3 starts to work and outputs the coolant through the tee S2, the second magnetic therapy head 4, the third pump body 73, the tee S3, the second cooling radiator 5, the tee S4 and the flow switch 9, and is then delivered to the interior of the cooling box 1, continuing the cooling cycle;

[0098] S023: When the tee S1 again monitors that the temperature T1 of the coolant is not less than the set standard temperature T01, the second fan 50 installed on the second cooling row 5 starts to operate, and the coolant continues to circulate. In S0312 and S0313 of this embodiment, the first fan 30 installed on the first cooling row 3 and the second fan 50 installed on the second cooling row 5 can operate simultaneously. That is, S0312 and S0313 are combined as follows: When the tee S1 monitors that the temperature T1 of the coolant is not less than the set standard temperature T01, the first fan 30 and the second fan 50 both start to operate, and the output coolant passes through the tee S2, the second magnetic therapy head 4, the third pump body 73, the tee S3, the second cooling row 5, the tee S4 and the flow switch 9, and is delivered to the interior of the cooling box 1, where the cooling circulation continues.

[0099] S024: When the temperature of the coolant monitored by the three-way valve S1 exceeds T01, and the first fan 30 and the second fan 50 are already operating at a high level, the first magnetic therapy head 2 is operating normally;

[0100] S025: When the continuously output coolant passes through the tee S1 again and the temperature monitored by the tee S1 is not less than 43°C, the first magnetic therapy head 2 stops working. In this embodiment, if the temperature of the continuously output coolant after passing through the tee S1 is still less than 43°C, the first magnetic therapy head 2 can be manually stopped or automatically stopped after the set working time.

[0101] S03: After the magnetic therapy head stops working, the driving pump installed inside the cooling box 1 continues to work for 3-10 minutes, and the temperature of the coolant delivered to the inside of the tee is not higher than 35°C;

[0102] S04: Subsequently, when the temperature of the coolant is no higher than 35°C, the drive pumps within cooling box 1 are deactivated; that is, first pump body 71, second pump body 72, and third pump body 73 are deactivated. In this embodiment, "subsequently" refers to the cooling liquid being heated and then cooled, assuming the magnetic therapy head is deactivated in step S03.

[0103] In this embodiment, the first magnetic therapy head 2 is driven to work independently and flows back to the cooling box 1 through the first pump body 71, the second pump body 72, the tee S1, the first cold row 3, the tee S2, the second magnetic therapy head 4, the third pump body 73, the tee S3, the second cold row 5, the tee S4 and the flow switch 9; the cooling system is mainly arranged in series with the first cold row 3 and the second cold row 5, and the first cold row 3 and the second cold row 5 are respectively provided with a first fan 30 and a second fan 50 to accelerate the heat dissipation of the coolant to achieve rapid heat dissipation, and multiple sections of connecting pipes are connected in series so that the circulating coolant can continuously dissipate heat during the transportation process, thereby ensuring the heat dissipation of the coolant and meeting the long-term operation requirement of the first magnetic therapy head 2; the cooling device connects the two magnetic therapy heads and the driving pump, connecting pipe, tee and cold row connected between the magnetic therapy heads in series and circulates the coolant to the cooling box, so that the coolant is difficult to reach 43°C during operation, thereby allowing the first magnetic therapy head 2 to operate stably during the specified treatment period. Example 5

[0104] refer to Figure 1-6 As shown, the difference between this embodiment and the fourth embodiment is that in step S02, the first magnetic therapy head 2 does not work, and the second magnetic therapy head 4 is driven to work alone. The specific steps are as follows:

[0105] S021: When the second magnetic therapy head 4 is driven alone and the coolant temperature T3 monitored by the tee S3 is lower than the set standard temperature T33, the first fan 30 and the second fan 50 are both deactivated. The coolant output from the second radiator 5 flows back into the cooling box 1 through the tee S4 and the flow switch 9, and the coolant continues to circulate, where T33 = T01 = 32°C.

[0106] S022: When the temperature T3 of the coolant monitored by the three-way valve S3 is not less than the set standard temperature value T33, the second fan 50 installed on the second cooling radiator 5 starts to work and delivers the output coolant to the cooling box to continue the flow circulation;

[0107] S023: When the three-way valve S3 again monitors that the temperature T3 of the coolant is not less than the set standard temperature value T33, the first fan 30 starts to operate, and the coolant continues to circulate. In this embodiment, the first fan 30 and the second fan 50 can also operate simultaneously, and S0312 and S0313 are combined into one step. Specifically, when the three-way valve S3 monitors that the temperature T3 of the coolant is not less than the set standard temperature value T33, the first fan 30 and the second fan 50 both start to operate and deliver the output coolant to the cooling box for continuous flow circulation.

[0108] S024: When the temperature of the coolant monitored again by the three-way valve S3 is still higher than T01, and the first fan 30 and the second fan 50 are already operating at a high level, the second magnetic therapy head 4 is operating normally;

[0109] S025: When the continuously output coolant is again delivered to the tee S3 and the temperature T3 detected by the tee S3 is not less than 43°C, the second magnetic therapy head 4 stops operating. In this embodiment, if the continuously output coolant is monitored by the tee S3 and the temperature detected by the tee S3 is still less than 43°C, the first magnetic therapy head 2 can be manually stopped or automatically stopped after the set operating time.

[0110] The difference in this embodiment is that the second magnetotherapy head 4 is working and the first magnetotherapy head 2 is not working. This embodiment does not require whether the first magnetotherapy head 2 and the second magnetotherapy head 4 have the same power, and the cooling circulation path of the coolant is consistent. Example 6

[0111] refer to Figure 1-6 As shown, the difference between this embodiment and the fourth embodiment is that in step S02, the first magnetic therapy head 2 and the second magnetic therapy head 4 are both in working state. The specific steps are as follows:

[0112] S021: When the two magnetic therapy heads are driven to operate, and the coolant temperature T1 monitored by the tee S1 is lower than the standard temperature T01 set by the tee S1, the first fan 30 installed on the first cooling row 3 and the second fan 50 installed on the second cooling row 5 are both deactivated. The coolant output from the second cooling row 5 flows back to the interior of the cooling box 1 through the tee S4 and the flow switch 9, and the coolant continues to circulate. The calibrated temperature value of T01 is 32°C.

[0113] S022: When the circulating coolant is delivered to the tee S1 again, and the temperature T1 of the coolant monitored by the tee S1 is not less than the set standard temperature T01, the first fan 30 installed on the first radiator 3 starts to work, and the coolant after dissipating heat through the first radiator 3 enters the tee S2. The temperature T2 of the coolant detected by the tee S2 is less than the standard temperature T01 set by the tee S1. Then the coolant is delivered to the interior of the second magnetic therapy head 4 and continues to circulate;

[0114] S023: When the coolant temperature T2 detected by the tee S2 is not less than the standard temperature T01 set by the tee S1, the first fan 30 operates at a high gear and the second fan 50 operates at a low gear;

[0115] S024: After the circulating coolant is output from the second magnetic therapy head 4 and delivered to the tee S3, when the temperature monitored by the tee S3 is not less than the calibrated temperature T01 set by the tee S3, the second fan 50 installed on the second cooling radiator 5 starts to work, and the coolant continues to circulate;

[0116] S025: When the circulating coolant is delivered to the tee S4 again, and the temperature monitored by the tee S4 is not less than the calibrated temperature T01 set by the tee S1, the second fan 50 installed on the second cooling radiator 5 operates at a high speed, and the coolant enters the interior of the cooling box 1 through the flow switch 9 and continues to circulate;

[0117] S026: When the circulating coolant is delivered to the tee S1 again, and the temperature T1 detected by the tee S1 is not less than 43° C., the first magnetic therapy head 2 is stopped and the second magnetic therapy head 4 is started at the same time.

[0118] In the above embodiment, the first and second magnetotherapeutic heads 2 and 4 are both heating elements, wherein the heat generated by the first magnetotherapeutic head 2 is not less than the heat generated by the second magnetotherapeutic head 4. In this embodiment, both magnetotherapeutic heads are in operation. When the temperature detected by any one of the series-connected tees S1, S2, S3, and S4 is not less than 43°C, the first and second magnetotherapeutic heads 2 and 4 cease operation. However, the drive pump disposed within the cooling box 1 does not cease operation, rapidly cooling the coolant through the drive pump, the series-connected connecting pipes, and the radiator. Simultaneously, the drive pump disposed within the cooling box rapidly cools the pump and prevents the high temperature generated by the external pump from affecting the heat dissipation of the multiple series-connected connecting pipes.

[0119] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling circulation device for magnetic therapy equipment, characterized in that: The invention comprises a cooling box (1) for accommodating a coolant, a driving pump installed inside the cooling box (1), a tee and a cold row arranged outside the cooling box (1), and a first magnetic therapy head (2) and a second magnetic therapy head (4) arranged outside the cooling box (1); the driving pump, the tee, the cold row, the first magnetic therapy head (2) and the second magnetic therapy head (4) are connected in series and are connected in series with each other using a connecting pipe; the tee is also provided with a temperature sensor (10) for monitoring the temperature of the coolant; the cooling box (1) is a box structure with a regular structure, and an opening is provided at the upper end; the The upper end of the cooling box (1) is also provided with a box cover (11) for sealing the opening; the end surface of the box cover (11) is also provided with a first adapter (111) for installing a connecting pipe and a middle plate (12) for installing a driving pump, the middle plate (12) is located inside the cooling box (1), and the middle plate (12) is arranged horizontally; the horizontal portion of the middle plate (12) is provided with a driving pump; the lower end of the driving pump passes through the middle plate (12), and the upper end of the driving pump is fixed on the middle plate (12); the lower end of the driving pump is a motor, and the lower end of the driving pump is completely placed in the coolant.

2. A cooling circulation device for magnetic therapy equipment according to claim 1, characterized in that: A flow switch (9) is also installed on the middle plate (12); and the middle plate (12) is at least one of a bent plate and a straight plate structure.

3. A cooling circulation device for magnetic therapy equipment according to any one of claims 1 to 2, characterized in that: The driving pump comprises a first pump body (71), a second pump body (72) and a third pump body (73); the tee comprises a tee S1, a tee S2, a tee S3 and a tee S4, wherein the tee S1, the tee S2, the tee S3 and the tee S4 are all equipped with a temperature sensor (10); the radiator comprises a first radiator (3) and a second radiator (5), and the first radiator (3) and the second radiator (5) are respectively equipped with a first fan (30) and a second fan (50).

4. A cooling circulation device for magnetic therapy equipment according to claim 3, characterized in that: The connecting tubes include an infusion tube A, an infusion tube B, an infusion tube C, an infusion tube D, an infusion tube E, an infusion tube F, an infusion tube G, an infusion tube H, an infusion tube I, an infusion tube J and an infusion tube K; the output end of the first pump body (71) is connected to the infusion tube A, and is connected to the first magnetic therapy head (2) via the infusion tube A; the interior of the first magnetic therapy head (2) is also provided with an infusion tube B for outputting cooling liquid, and is connected to the second pump body (72) via the infusion tube B; the output end of the second pump body (72) is also connected to the infusion tube C, and is connected to the tee S1 via the infusion tube C; the output end of the tee S1 is also connected to the infusion tube D, and is connected to the first cold row (3) via the infusion tube D; the output end of the first cold row (3) is connected to It is connected to an infusion tube E, and is connected to a tee S2 via the infusion tube E; the output end of the tee S2 is connected to an infusion tube F, and is connected to a second magnetic therapy head (4) via the infusion tube F; an infusion tube G is also installed side by side inside the second magnetic therapy head (4), and is connected to a third pump body (73) via the infusion tube G; the output end of the third pump body (73) is connected to an infusion tube H, and is connected to a tee S3 via the infusion tube H; the output end of the tee S3 is also connected to an infusion tube I, and is connected to a second cold row (5) via the infusion tube I; the output end of the second cold row (5) is connected to an infusion tube J, and is connected to a tee S4 via the infusion tube J; the output end of the tee S4 is connected to an infusion tube K, and is connected to a cooling box (1) via the infusion tube K.

5. A cooling circulation device for magnetic therapy equipment according to claim 4, characterized in that: One end of the infusion tube K is fixed to the tee S4, and the other end passes through the cooling box (1), and the infusion tube K and the cooling box (1) are fixed to each other; a flow switch (9) is also installed on the infusion tube K; and a liquid level meter (8) is also installed on the side wall of the cooling box (1).

6. A cooling method for magnetic therapy equipment using the magnetic therapy equipment cooling circulation device according to claim 1, characterized in that: The steps include: S01: In a room temperature environment not higher than 35°C, a driving pump installed inside the cooling box (1) is started, and the driving pump transports the coolant inside the cooling box (1) to the first magnetic therapy head (2) and the second magnetic therapy head (4) arranged in series, and monitors and records the temperature of the coolant flowing through the three-way valve, and finally returns to the interior of the cooling box (1) and continuously circulates and transports the coolant; S02: When the magnetic therapy head is driven to work, the operating states of the first fan (30) on the first cold row (3) and the second fan (50) on the second cold row (5) are controlled through temperature monitoring of the three-way S1, the three-way S2, the three-way S3 and the three-way S4; S03: When the magnetic therapy head stops working, the driving pump installed in the cooling box (1) continues to work for 3-10 minutes, and the temperature of the coolant delivered to the inside of the tee is not higher than 35°C; S04: Subsequently, when the temperature of the coolant is not higher than 35°C, the driving pumps placed inside the cooling box (1) stop working; that is, the first pump body (71), the second pump body (72) and the third pump body (73) stop working.

7. A cooling method for magnetic therapy equipment according to claim 6, characterized in that: The S02 step includes: S021: When the first magnetic therapy head (2) is driven to work alone, and the temperature T1 of the coolant monitored by the tee S1 is less than the standard temperature value T01 set by the tee S1, the first fan (30) and the second fan (50) are both stopped; then the coolant output by the second cold row (5) flows back to the interior of the cooling box (1) through the tee S4 and the flow switch (9), and the coolant continues to circulate; wherein the calibrated temperature value of T01 is 32°C; S022: When the temperature T1 of the coolant monitored by the tee S1 is not less than the set standard temperature value T01, the first fan (30) installed on the first cooling row (3) starts to work, and the output coolant passes through the tee S2, the second magnetic therapy head (4), the third pump body (73), the tee S3, the second cooling row (5), the tee S4 and the flow switch (9), and is transported to the inside of the cooling box (1), and the cooling cycle is continued; S023: When the three-way valve S1 monitors the coolant temperature T1 again and finds that the temperature is not less than the set standard temperature T01, the second fan (50) installed on the second cooling row (5) starts to work, and the coolant continues to circulate; S024: When the temperature of the coolant monitored by the three-way S1 exceeds T01, and the first fan (30) and the second fan (50) are already operating at a high level, the first magnetic therapy head operates normally; S025: When the continuously output coolant passes through the tee S1 again, when the temperature monitored by the tee S1 is not less than 43°C, the first magnetic therapy head (2) stops working.

8. The cooling method for magnetic therapy equipment according to claim 5, characterized in that: Step S02 also includes: S021: When the second magnetic therapy head (4) is driven to work alone, and the temperature T3 of the coolant monitored by the three-way S3 is less than the set standard temperature value T33, the first fan (30) and the second fan (50) are not operated; the coolant output by the second cold row (5) flows back to the inside of the cooling box (1) through the three-way S4 and the flow switch (9), and the coolant continues to flow and circulate, wherein T33=T01=32°C; S022: When the temperature T3 of the coolant monitored by the three-way valve S3 is not less than the set standard temperature value T33, the second fan (50) installed on the second cooling row (5) starts to work and delivers the output coolant to the cooling box, and the coolant continues to flow and circulate; S023: When the three-way valve S3 monitors the coolant temperature T3 again and finds that the temperature is not less than the set standard temperature T33, the first fan (30) starts to work and the coolant continues to cool and circulate; S024: When the temperature of the coolant monitored again by the three-way S3 still exceeds T01, and the first fan (30) and the second fan (50) are already operating at a high level, the second magnetic therapy head (4) operates normally; S025: When the continuously output coolant is delivered to the tee S3 again, and the temperature T3 detected by the tee S3 is not less than 43°C, the second magnetic therapy head (4) stops working.

9. A cooling method for magnetic therapy equipment according to claim 6, characterized in that: Step S02 also includes: S021: When the two magnetic therapy heads are driven to work, and the temperature T1 of the coolant monitored by the tee S1 is less than the standard temperature value T01 set by the tee S1, the first fan (30) installed on the first cold row (3) and the second fan (50) installed on the second cold row (5) are not working, and the coolant output by the second cold row (5) flows back to the inside of the cooling box (1) through the tee S4 and the flow switch (9), and the coolant continues to flow and circulate; wherein the calibrated temperature value of T01 is 32°C; S022: When the circulating coolant is delivered to the tee S1 again, and the temperature T1 of the coolant monitored by the tee S1 is not less than the set standard temperature T01, the first fan (30) installed on the first cold row (3) starts to work, and the coolant after the first cold row (3) dissipates heat and enters the tee S2. The tee S2 detects that the temperature T2 of the coolant is less than the standard temperature T01 set by the tee S1, and then the coolant is delivered to the inside of the second magnetic therapy head (4) and continues to circulate; S023: When the temperature T2 of the coolant detected by the tee S2 is not less than the standard temperature T01 set by the tee S1, the first fan (30) operates at a high gear and the second fan (50) operates at a low gear; S024: After the circulating coolant is output from the second magnetic therapy head (4) and delivered to the tee S3, when the temperature monitored by the tee S3 is not less than the calibrated temperature T01 set by the tee S3, the second fan (50) installed on the second cooling row (5) starts to work, and the coolant continues to circulate again; S025: When the circulating coolant is delivered to the tee S4 again, and the temperature monitored by the tee S4 is not less than the calibrated temperature T01 set by the tee S1, the second fan (50) installed on the second cooling row (5) operates at a high speed, and the coolant enters the interior of the cooling box (1) through the flow switch (9) and continues to circulate; S026: When the circulating coolant is delivered to the tee S1 again, and the temperature T1 detected by the tee S1 is not less than 43°C, the first magnetic therapy head (2) is stopped and the second magnetic therapy head (4) is started at the same time.

10. A cooling method for magnetic therapy equipment according to any one of claims 6 to 9, characterized in that: The rotation speeds of the first fan (30) and the second fan (50) in step S02 are adjustable in multiple gears.

Citation Information

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