Electromagnetic physiotherapy device

Abstract

This invention relates to the field of magnetic therapy technology and discloses an electromagnetic therapy device, including a frame, a coil, a magnetic needle, and a heat sink. The frame has a through-hole, and the coil is wound around the periphery of the frame. It also includes a support sleeve with a through-hole magnetic needle cavity. The bottom of the support sleeve has an outwardly extending protrusion. The magnetic needle is fixed inside the magnetic needle cavity. The support sleeve extends into the through-hole of the frame, and the protrusion extends out of the through-hole and fits against the bottom surface of the frame. The heat sink has through-holes, and a groove is provided around the top of the holes. The top of the holes is fixedly connected to the bottom of the frame, and the position of the holes corresponds to the through-holes. The grooves accommodate the protrusions, allowing the protrusions to be held in place by the frame and the heat sink, thus fixing the magnetic needle inside the through-holes without the need for filling the holes with potting compound. The magnetic needle and frame can be detached.

Description

Technical Field

[0001] This invention relates to the field of magnetotherapy technology, and in particular to electromagnetic therapy devices. Background Technology

[0002] Electromagnetic therapy devices generally consist of a housing, coils, and an iron core made of magnetic needles. Currently, the connection between the magnetic needles and the housing in these devices typically relies on potting compounds such as epoxy resin. For example, patent number 202310762180.6 discloses a self-heating fine magnetic field device that uses epoxy resin for bonding. However, this bonding method allows for relative movement between the magnetic needles and between the needles and the housing, which is inconvenient for production and long-term use. During maintenance, the entire housing needs to be removed, leaving marks or even damaging the housing's mounting holes, increasing maintenance and warehousing costs.

[0003] Therefore, it is necessary to propose a new type of electromagnetic physiotherapy device to solve the above problems. The traditional electromagnetic physiotherapy device relies on filling epoxy resin or similar potting adhesive to bond the magnetic needles and the shell, which leads to easy relative movement between the magnetic needles and between the magnetic needles and the shell, inconvenience in production and long-term use, the need to take the shell with it during maintenance, leaving marks or even damage to the shell assembly holes, and increasing maintenance and warehousing costs. Summary of the Invention

[0004] This invention provides an electromagnetic physiotherapy device that solves the problems of traditional electromagnetic physiotherapy devices where the magnetic needles and the shell are bonded by filling with potting adhesive such as epoxy resin. These problems result in easy relative movement between the magnetic needles and between the magnetic needles and the shell, making production and long-term use inconvenient. During maintenance, the magnetic needles need to be taken away along with the shell, leaving marks or even damage to the assembly holes of the shell, and increasing maintenance and warehousing costs.

[0005] The technical problem solved by this invention is achieved by the following technical solution:

[0006] An electromagnetic physiotherapy device includes a frame, a coil, a magnetic needle, and a heat sink. The frame has a through-hole, and the coil is wound around the frame. The device also includes a support sleeve with a through-hole magnetic needle cavity. The bottom of the support sleeve has an outwardly extending protrusion. The magnetic needle is fixed inside the magnetic needle cavity. The support sleeve extends into the through-hole, and the protrusion extends out of the through-hole and fits against the bottom surface of the frame. The heat sink has through-hole ventilation holes with grooves around the top of the ventilation holes. The top of the ventilation holes is fixedly connected to the bottom of the frame, and the position of the ventilation holes corresponds to the through-hole. The grooves accommodate the protrusion, allowing the protrusion to be held between the frame and the heat sink.

[0007] Furthermore, the support sleeve has several raised ribs extending along the length of the support sleeve on its outer side. The raised ribs separate the support sleeve and the assembly hole, thereby forming several heat dissipation channels extending along the length of the assembly hole.

[0008] Furthermore, the rib extends outward from below the assembly hole, and the protrusion extends outward from the lower outer side of the rib.

[0009] Furthermore, the bottom surface of the magnetic needle is flush with the bottom surface of the support sleeve.

[0010] Furthermore, it also includes a first fan, the bottom of the heat sink has an opening that penetrates the heat dissipation hole, the first fan is fixed in the opening, and the magnetic needle is located above the opening.

[0011] Furthermore, the magnetic needle extends below the support sleeve and into the heat dissipation hole.

[0012] Furthermore, the heat sink includes a heat-absorbing block and several downwardly extending fins disposed on the bottom surface of the heat-absorbing block, with gaps between the fins. The heat dissipation hole extends from the top surface of the heat-absorbing block to the bottom surface of the fins. The bottom of the frame is provided with a bottom through hole that penetrates the top and bottom of the frame base plate around the coil. The top surface of the heat-absorbing block is provided with a top screw hole corresponding to the bottom through hole. The top screw hole is threadedly connected to a screw passing through the bottom through hole, thereby fixing the heat sink to the frame.

[0013] Furthermore, it also includes a housing, the top of which has a relief opening for exposing the magnetic needle tip. The heat sink is fixed to the inner wall of the housing side, and the frame is supported by the heat sink and thus fits against the inner wall of the top of the housing. The magnetic needle tip faces upward and corresponds to the position of the relief opening.

[0014] Furthermore, the heat absorption block is provided with side screw holes on the left and right sides, and the side through holes are provided on the left and right side walls of the outer shell. The side screw holes are threadedly connected to the screws passing through the side through holes, thereby fixing the heat sink to the inner side wall of the outer shell.

[0015] Furthermore, it also includes a second fan. The front and rear side walls of the outer casing are respectively provided with an air inlet and an air outlet. The second fan is located at the air inlet, and the length direction of the fins is consistent with the direction of the air inlet.

[0016] The beneficial effects of this invention are:

[0017] This invention adds a support sleeve with a through-hole magnetic needle cavity. The bottom of the support sleeve has an outwardly extending protrusion. The magnetic needle is fixed inside the cavity. The support sleeve extends into the mounting hole of the frame. The protrusion extends out of the mounting hole and fits against the bottom surface of the frame. A through-hole heat dissipation hole is provided on the heat sink, with a groove around the top of the hole. The top of the heat dissipation hole is fixedly connected to the bottom of the frame, and the position of the heat dissipation hole corresponds to the mounting hole. The groove accommodates the protrusion, allowing the protrusion to be held between the frame and the heat sink. This achieves the fixation of the magnetic needle in the mounting hole without the need for filling the mounting hole with potting compound. The magnetic needle and frame can be detached quickly and easily without leaving marks or causing damage to the frame. This solves the problems of traditional electromagnetic therapy devices where the magnetic needle and shell are bonded with potting compound such as epoxy resin, leading to easy relative movement between the magnetic needles and between the magnetic needle and the shell, inconvenience in production and long-term use, the need to remove the shell during maintenance, leaving marks or even damage to the shell mounting hole, and increased maintenance and warehousing costs. In addition, the heat from the magnetic needle can be conducted to the heat sink through the support sleeve, or it can be directly attached to the heat sink for heat dissipation; the heat from the coil can be conducted to the heat sink through the frame. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a perspective view of the present invention after the outer shell has been removed.

[0020] Figure 2 This is an exploded view of the present invention after the outer shell has been removed.

[0021] Figure 3 This is a schematic diagram of the structure of the magnetic needle and support sleeve combination of the present invention.

[0022] Figure 4 This is a horizontal cross-sectional view of the support sleeve and magnetic needle after they are inserted into the skeleton according to the present invention.

[0023] Figure 5 This is a cross-sectional view of Embodiment 1 of the present invention.

[0024] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention.

[0025] Figure 7 This is a cross-sectional view of Embodiment 3 of the present invention.

[0026] Figure 8 This is a perspective view of the present invention with a housing.

[0027] Figure 9 This is a cross-sectional view of the present invention with a housing.

[0028] in:

[0029] 10-Frame, 11-Assembly hole, 12-Heat dissipation channel, 13-Bottom through hole;

[0030] 20-coil;

[0031] 30-Magnetic needle;

[0032] 40-Heat sink, 41-Heat dissipation hole, 42-Groove, 43-Opening, 44-Heat absorption block, 45-Fin, 46-Top screw hole, 47-Side screw hole;

[0033] 50-Support sleeve, 51-Magnetic needle cavity, 52-Protrusion, 53-Protruding rib;

[0034] 60 - First wind turbine;

[0035] 70 - Outer shell, 71 - Relief opening, 72 - Side through hole, 73 - Air inlet, 74 - Air outlet;

[0036] 80 - Second fan. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0038] Example 1, see Figures 1 to 5 An electromagnetic therapy device includes a frame 10, a coil 20, a magnetic needle 30, and a heat sink 40. The frame 10 has a through-hole 11. The coil 20 is wound around the periphery of the frame 10. The device also includes a support sleeve 50, which has a through-hole magnetic needle cavity 51. The bottom of the support sleeve 50 has an outwardly extending protrusion 52. The magnetic needle 30 is fixed inside the magnetic needle cavity 51. The support sleeve 50 extends into the through-hole 11. The protrusion 52 extends out of the through-hole 11 and fits against the bottom surface of the frame 10. The heat sink 40 has a through-hole 41. The top of the 41 has a groove 42 around it. The top of the 41 is fixedly connected to the bottom of the frame 10. The position of the 41 corresponds to the through-hole 11. The groove 42 accommodates the protrusion 52 so that the protrusion 52 is clamped between the frame 10 and the heat sink 40.

[0039] The support sleeve 50 is thus clamped between the heat sink 40 and the frame 10, thereby fixing the magnetic needle 30 in the mounting hole 11 without the need to fill the mounting hole 11 with potting compound. The magnetic needle 30 and the frame 10 can be detached from each other quickly and without leaving marks or causing damage to the frame 10. This solves the problems of traditional electromagnetic therapy devices where the magnetic needles and the shell are bonded with potting compound such as epoxy resin, which leads to easy relative movement between the magnetic needles and between the magnetic needles and the shell, inconvenience in production and long-term use, the need to take the shell away during maintenance, leaving marks or even damage to the shell mounting hole, and increasing maintenance and warehousing costs. In addition, the heat of the magnetic needle 30 can be conducted to the heat sink through the support sleeve 50, or it can be directly attached to the heat sink 40 for heat dissipation; the heat of the coil 20 can be conducted to the heat sink 40 through the frame 10. Preferably, the support sleeve 50 and the frame 10 are made of thermally conductive materials. Preferably, the magnetic needle 30 and the support sleeve 50 are bonded with epoxy resin, which significantly reduces maintenance costs even if marks or damage are left on the support sleeve 50.

[0040] The support sleeve 50 has several raised ribs 53 extending along its length. These ribs 53 separate the support sleeve 50 from the mounting holes 11, thus forming several heat dissipation channels 12 extending along the length of the mounting holes 11. The raised ribs 53 provide structural strength to the support sleeve 50 and also form heat dissipation channels 12 for heat dissipation. Compared with traditional heat dissipation holes (such as the electromagnetic coil device disclosed in patent number 202120582603.2, which also has several heat dissipation holes on the support wall of the frame), this product does not require a specially made frame; even using a common frame can produce a heat dissipation effect, and it can be adapted to more frame models.

[0041] The rib 53 protrudes below the mounting hole 11, and the protrusion 52 extends outward from the lower outer side of the rib 53. The protrusion 52 is placed on the rib 53 for a simpler design and to avoid obstructing heat dissipation.

[0042] The heat sink 40 includes a heat-absorbing block 44 and several downwardly extending fins 45 located on the bottom surface of the heat-absorbing block 44. Gaps are left between the fins 45. A heat dissipation hole 41 extends from the top surface of the heat-absorbing block 44 to the bottom surface of the fins 45. The bottom of the frame 10, located around the coil 20, has a bottom through hole 13 penetrating the top and bottom of the frame 10's base plate. The top surface of the heat-absorbing block 44 has a corresponding top screw hole 46. The top screw hole 46 is threadedly connected to a screw passing through the bottom through hole 13, thereby fixing the heat sink 40 to the frame 10. The gaps between the fins 45 communicate with the heat dissipation hole 41, the mounting hole 11, and the support sleeve 50, allowing more external airflow to pass through and maximizing heat dissipation for the magnetic needle. The top screw hole 46 is threadedly connected to the screw passing through the bottom through hole 13, achieving a simple yet secure connection between the heat sink 40 and the frame 10.

[0043] See Figure 8 and Figure 9 The device also includes a housing 70, with a recess 71 on the top for exposing the tip of the magnetic needle 30. The heat sink 40 is fixed to the inner side wall of the housing 70, and the frame 10 is supported by the heat sink 40 and thus fits against the inner top wall of the housing 70. The tip of the magnetic needle 30 faces upwards and corresponds to the position of the recess 71. This allows for convenient and secure fixing of the frame 10 and the heat sink 40 within the housing 70, which can be installed on equipment using electromagnetic therapy devices.

[0044] The heat-absorbing block 44 has side screw holes 47 on both the left and right sides, and the outer casing 70 has side through holes 72 on both the left and right side walls. The side screw holes 47 are threadedly connected to the screws passing through the side through holes 72, thereby fixing the heat sink 40 to the inner side wall of the outer casing 70. This can securely fix the heat sink 40 inside the outer casing 70.

[0045] It also includes a second fan 80. The front and rear side walls of the outer casing 70 are respectively provided with an air inlet 73 and an air outlet 74. The second fan 80 is located at the air inlet 73, and the length direction of the fins 45 is consistent with the direction of the air inlet. This makes the airflow smoother and the heat dissipation effect better.

[0046] The bottom surface of the magnetic needle 30 is flush with the bottom surface of the support sleeve 50. This facilitates storage after the magnetic needle 30 and the support sleeve 50 are assembled, the assembly is relatively stable, and there are no special requirements for the size of the heat dissipation hole 41.

[0047] Example 2, see Figure 6 Unlike Embodiment 1, this embodiment also includes a first fan 60. The bottom of the heat sink 40 has an opening 43 that penetrates the heat dissipation hole 41. The first fan 60 is fixed inside the opening 43, and the magnetic needle 30 is located above the opening 43. The first fan 60 can further dissipate heat from the magnetic needle 30, and the opening 43 can well accommodate the first fan 60, achieving the addition of heat dissipation components and the improvement of heat dissipation effect without increasing the space occupied.

[0048] Example 3, see Figure 7 Unlike Embodiments 1 and 2, the magnetic needle 30 extends below the support sleeve 50 and into the heat dissipation hole 41. This allows the magnetic needle 30 to dissipate heat more effectively and increases the magnetic induction intensity.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic physiotherapy device, comprising a frame (10), a coil (20), a magnetic needle (30), and a heat sink (40), wherein the frame (10) is provided with a through mounting hole (11), and the coil (20) is wound around the periphery of the frame (10), characterized in that: It also includes a support sleeve (50), which has a magnetic needle cavity (51) that extends vertically. The bottom of the support sleeve (50) has an outwardly extending protrusion (52). The magnetic needle (30) is fixed in the magnetic needle cavity (51). The support sleeve (50) extends into the mounting hole (11). The protrusion (52) extends out of the mounting hole (11) and fits against the bottom surface of the frame (10). The heat sink (40) has a heat dissipation hole (41) that extends vertically. The top of the heat dissipation hole (41) is surrounded by a groove (42). The top of the heat dissipation hole (41) is fixedly connected to the bottom of the frame (10). The position corresponds to the mounting hole (11), and the groove (42) accommodates the protrusion (52) so that the protrusion (52) is clamped by the skeleton (10) and the heat sink (40); the support sleeve (50) has a number of protruding ribs (53) extending along the length direction of the support sleeve (50) distributed on the outside, and the protruding ribs (53) separate the support sleeve (50) and the mounting hole (11) to form a number of heat dissipation channels (12) extending along the length direction of the mounting hole (11); the protruding ribs (53) protrude from below the mounting hole (11), and the protrusion (52) extends outward from the lower outer side of the protruding ribs (53); The heat sink (40) includes a heat absorption block (44) and a plurality of downwardly extending fins (45) provided on the bottom surface of the heat absorption block (44). There are gaps between the fins (45). The heat dissipation hole (41) extends from the top surface of the heat absorption block (44) to the bottom surface of the fins (45). The bottom of the frame (10) is provided with a bottom through hole (13) that penetrates the top and bottom of the bottom plate of the frame (10) around the coil (20). The top surface of the heat absorption block (44) is provided with a top screw hole (46) corresponding to the bottom through hole (13). The top screw hole (46) is threadedly connected to a screw that passes through the bottom through hole (13), thereby fixing the heat sink (40) to the frame (10). It also includes a housing (70), the top of which is provided with a relief opening (71) for exposing the tip of the magnetic needle (30), the heat sink (40) is fixed on the inner wall of the side of the housing (70), the frame (10) is supported by the heat sink (40) and thus fits against the inner wall of the top of the housing (70), the tip of the magnetic needle (30) faces upward and corresponds to the position of the relief opening (71); The heat absorption block (44) is provided with side screw holes (47) on the left and right sides, and the side through holes (72) penetrating the side walls of the outer shell (70) are provided on the left and right side walls. The side screw holes (47) are threadedly connected to the screws passing through the side through holes (72), thereby fixing the heat sink (40) to the inner side wall of the outer shell (70). It also includes a second fan (80), and the front and rear side walls of the outer shell (70) are respectively provided with an air inlet (73) and an air outlet (74). The second fan (80) is located at the air inlet (73), and the length direction of the fins (45) is consistent with the direction of the air inlet.

2. The electromagnetic physiotherapy device according to claim 1, characterized in that: The bottom surface of the magnetic needle (30) is flush with the bottom surface of the support sleeve (50).

3. The electromagnetic physiotherapy device according to claim 1, characterized in that: It also includes a first fan (60), the bottom of the heat sink (40) is provided with an opening (43) that penetrates the heat dissipation hole (41), the first fan (60) is fixed in the opening (43), and the magnetic needle (30) is located above the opening (43).

4. The electromagnetic physiotherapy device according to claim 1, characterized in that: The magnetic needle (30) extends below the support sleeve (50) and into the heat dissipation hole (41).

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