Inductive charging test fixture

Abstract

The embodiment of the invention provides an inductive charging test fixture. The inductive charging test fixture comprises a base; the movable seat is movably arranged on the base, and the movable seat is used for bearing a transmitting end coil; the supporting seat is arranged on the base, and the supporting seat is used for supporting a receiving end coil; the angle adjusting mechanism is arranged on the supporting seat, and the angle adjusting mechanism is used for adjusting the angle between the receiving end coil and the transmitting end coil in the first direction and the second direction; and the distance adjusting mechanism is connected with the supporting seat, and the distance adjusting mechanism is used for adjusting the distance between the receiving end coil and the transmitting end coil in the third direction. According to the inductive charging test fixture provided by the embodiment of the invention, the position and angle relationship between the receiving end coil and the transmitting end coil is simulated through multi-dimensional movement, so that the charging power and efficiency of the charging coil in different position spaces and states are tested, and the test accuracy is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of test fixtures, and in particular, relates to an induction charging test fixture. Background Art

[0002] At present, implantable medical devices have been widely developed abroad, such as pacemakers, cardiac defibrillators, neural stimulators, drug delivery systems, etc. Most of these implantable medical devices need to rely on battery power to drive, and inductively rechargeable batteries are a new research and development direction.

[0003] Inductive charging technology is a contactless power transmission method that allows electrical energy to be transferred from a power source to a device through the air. This technology is based on the principle of electromagnetic induction. When current passes through a coil, a magnetic field is generated around it, and this magnetic field can cause another coil close to it to generate current. In implantable medical devices, an external charging device (transmitter coil) can wirelessly transmit energy to the receiving coil implanted in the body to charge the internal battery. During research and development, non-implantable inductive charging does not require too precise parameter changes and repeated experiments. The research and development of implantable inductive charging needs to consider more parameters, such as the diameter and number of turns of the coil, the distance, angle, and spatial position relationship between the transmitter and the receiver, the medium between the transmitter and the receiver, and temperature and humidity.

[0004] In summary, the testing of the above parameters requires professional fixtures. However, due to the early development of inductive charging technology in the industry, there are no related devices on the market that can meet the testing requirements of the above parameters. Summary of the invention

[0005] In view of this, an embodiment of the present application provides an inductive charging test fixture to solve the technical problem that there is currently no relevant device on the market that can test the charging power and efficiency of the charging coil in different positions, spaces and states.

[0006] The embodiment of the present application provides an inductive charging test fixture, comprising:

[0007] Pedestal;

[0008] A movable seat, movably arranged on the base, and used for carrying the transmitting end coil;

[0009] A support base, disposed on the base, and used to support the receiving end coil;

[0010] an angle adjustment mechanism, disposed on the support seat, the angle adjustment mechanism being used to adjust an angle between the receiving end coil and the transmitting end coil in a first direction and a second direction; and

[0011] A distance adjustment mechanism is connected to the support base, and the distance adjustment mechanism is used to adjust the distance between the receiving end coil and the transmitting end coil in the third direction.

[0012] In some embodiments, the support base comprises:

[0013] A coil box, used to accommodate and fix the receiving end coil;

[0014] The support arm comprises a middle section, a first section and a second section extending along two sides of the middle section, wherein the first section and the second section first extend in a direction away from each other and then extend in a direction approaching each other, the middle section is movable along a third direction and arranged on the base, and the coil box is arranged between the first section and the second section;

[0015] Wherein, an avoidance space is formed between the coil box and the support arm to reduce the interference of the support arm on the test result.

[0016] In some embodiments, the angle adjustment mechanism comprises:

[0017] A first angle adjustment component is provided on the first section and the second section and is connected to the coil box. The first angle adjustment component adjusts the angle between the receiving end coil and the transmitting end coil in the first direction by adjusting the coil box to rotate around the first direction as an axis.

[0018] The second angle adjustment component is connected to the middle section. The second angle adjustment component adjusts the angle between the receiving end coil and the transmitting end coil in the second direction by adjusting the middle section to rotate around the second direction.

[0019] In some embodiments, the first angle adjustment component includes:

[0020] An angle adjustment knob is provided on a side of the first section away from the coil box;

[0021] A first clamping member, one end of which is fixed to the coil box, and the other end of which is rotatably passed through the first section and connected to the angle adjustment knob;

[0022] The first clamping member and the coil box are driven to rotate by adjusting the angle adjustment knob, so as to adjust the angle between the receiving end coil and the transmitting end coil in the first direction.

[0023] In some embodiments, the first angle adjustment component further includes:

[0024] A fixing seat, installed on the second section;

[0025] A displacement adjustment knob, rotatably disposed on the fixing seat;

[0026] a rotating rod, one end of which is passed through the second section and connected to the displacement adjustment knob; and

[0027] A second clamping member, one end of which is connected to the coil box, and the other end of which is rotatably connected to the other end of the rotating rod;

[0028] Wherein, by adjusting the displacement adjustment knob, the rotating rod is driven to rotate so that the second clamping member is moved closer to or away from the coil box.

[0029] In some embodiments, a first angle scale is provided between the first section and the angle adjustment knob, and a first pointer is provided on the angle adjustment knob. The angle value between the receiving end coil and the transmitting end coil in the first direction is obtained by the first pointer pointing to the angle value of the first angle scale.

[0030] In some embodiments, the second angle adjustment component includes:

[0031] A damping shaft, rotatably connected to the middle section and the base, so that the entire support arm can rotate around the second direction as an axis;

[0032] A second angle scale, disposed on the middle section; and

[0033] A second pointer, disposed on the middle section;

[0034] The angle value between the receiving end coil and the transmitting end coil in the second direction is obtained by the angle value of the second angle scale pointed by the second pointer.

[0035] In some embodiments, the distance adjustment mechanism comprises:

[0036] A fixing rod is arranged on the base along a third direction, and a first gear is arranged on the fixing rod;

[0037] A slider is sleeved on the fixing rod, the slider is rotatably connected to the supporting arm, a second gear is rotatably arranged inside the slider, and the second gear is meshed with the first gear;

[0038] Wherein, the support arm is driven to move on the fixing rod by rotating the second gear.

[0039] In some embodiments, the distance adjustment mechanism further includes a distance adjustment knob, which is rotatably disposed on the slider and connected to the second gear.

[0040] In some embodiments, the distance adjustment mechanism further includes a limit screw and a limit knob, wherein the limit screw is disposed through the slider, one end of the limit screw abuts against the fixing rod, and the other end of the limit screw is connected to the limit knob.

[0041] In some embodiments, the mobile base comprises:

[0042] A support part, movably disposed on the base, and used for supporting the transmitting end coil;

[0043] The positioning part is connected to the supporting part and can move along the first direction and the second direction of the base. The positioning part is used to cooperate with the base to obtain the position information of the transmitting end coil.

[0044] In some embodiments, the coil box includes:

[0045] a first cover;

[0046] A coil center axis is detachably disposed on the first cover body, and the receiving end coil is disposed on the first cover body and wound around the coil center axis; and

[0047] The second cover body is disposed on the first cover body and covers and limits the receiving end coil.

[0048] In the induction charging test fixture provided in the embodiment of the present application, most of the structural parts are made of non-metallic materials, and the overall structure keeps the coil away from metal parts, thereby reducing the interference with the test results; further, the movable seat is movably arranged on the base, so the transmitting coil located on the movable seat can be moved on the plane where the base is located (that is, in the first direction and the second direction of the base). In other words, the position relationship between the transmitting coil and the receiving coil is adjusted from two dimensions of the XY plane, the distance between the transmitting coil and the receiving coil in the third direction is adjusted by the distance adjustment structure, and the angle of the receiving coil with the first direction as the axis (X axis) and the second direction as the axis (Y axis) is adjusted by the angle adjustment component, thereby realizing the position and angle relationship of five dimensions for testing, which can simulate the actual application scenario of the induction charging coil in the implantable medical device to the greatest extent, thereby obtaining accurate test results, which is conducive to the promotion and application of the induction charging coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 This is a schematic diagram of the structure of the inductive charging test fixture provided in the embodiment of the present application. Figure 1 ;

[0051] Figure 2 This is a schematic diagram of the structure of the inductive charging test fixture provided in the embodiment of the present application. Figure 2 ;

[0052] Figure 3 This is a schematic diagram of the structure of the inductive charging test fixture provided in the embodiment of the present application. Figure 1 ;

[0053] Figure 4 is an exploded schematic diagram of an inductive charging test fixture provided in an embodiment of the present application;

[0054] Figure 5 Schematic diagram of the distance adjustment structure of the inductive charging test fixture provided in the embodiment of the present application Figure 1 ;

[0055] Figure 6 Schematic diagram of the distance adjustment structure of the inductive charging test fixture provided in the embodiment of the present application Figure 2 ;

[0056] Figure 7 It is a structural schematic diagram of a mobile base of an inductive charging test fixture provided in an embodiment of the present application;

[0057] Figure 8 Schematic diagram of the structure of the coil box of the induction charging test fixture provided in an embodiment of the present application.

[0058] Among them, the figure numbers are:

[0059] 100, transmitting end coil; 200, receiving end coil;

[0060] 10. Base;

[0061] 20. Moving seat; 21. Supporting part; 22. Positioning part;

[0062] 30, support base; 31, coil box; 311, first cover; 312, coil center axis; 313, second cover; 32, support arm; 321, middle section; 322, first section; 323, second section;

[0063] 40. Angle adjustment mechanism; 41. First angle adjustment assembly; 411. Angle adjustment knob; 412. First clamping member; 413. Fixed seat; 414. Displacement adjustment knob; 415. Rotating rod; 416. Second clamping member; 417. First angle scale; 418. First pointer; 42. Second angle adjustment assembly; 421. Damping shaft; 422. Second angle scale; 423. Second pointer; 424. Scale fixing block;

[0064] 50. Distance adjustment mechanism; 51. Fixing rod; 510. Guide groove; 511. First gear; 52. Sliding block; 520. Mounting hole; 521. Second gear; 53. Distance adjustment knob; 54. Limit screw; 55. Limit knob; 56. Buffer. DETAILED DESCRIPTION

[0065] In the following description, specific details such as specific system structures, technologies, etc. are proposed for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the embodiments of the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the embodiments of the present application.

[0066] It should also be understood that the term “and / or” used in the description of the embodiments of the present application and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0067] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0068] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0069] In addition, in the description of the embodiments of the present application and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0070] References to "some embodiments" or "some embodiments" etc. described in the specification of the embodiments of the present application mean that one or more embodiments of the embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Thus, the statements "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in the different parts of this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways. "Multiple" refers to two or more.

[0071] Implantable medical devices are those medical devices designed to be placed inside the human body. Such devices are usually used for long-term monitoring of physiological parameters or to provide therapeutic effects. Implantable medical devices can be divided into many types, including but not limited to pacemakers, defibrillators, cochlear implants, insulin pumps, neurostimulators, etc.

[0072] In recent years, researchers are exploring the possibility of using wireless charging technology to power implantable medical devices. This technology can avoid the surgical risks and inconvenience of frequent battery replacement. Through external wireless charging devices, implants can be charged outside the body, thereby extending the service life of the device and reducing invasive interventions for patients.

[0073] Inductive charging technology is a wireless charging method that relies on the principle of electromagnetic induction. In this process, energy is transferred from the power source to the device without physical contact. Inductive charging systems usually contain two main components: the transmitter (also called the charging pad or base) and the receiver (located in the device that needs to be charged).

[0074] The transmitter has one or more coils that generate an alternating magnetic field. When current passes through these coils, a changing magnetic field is generated. The receiver also has a coil that, when aligned with the transmitter and within the magnetic field it generates, generates a current due to electromagnetic induction.

[0075] In order to ensure efficient energy transmission, the distance between the transmitter and the receiver must be kept within a small range, usually between a few millimeters and a few centimeters. In practical applications, users only need to place the device that supports wireless charging on the charging pad to start charging, without plugging and unplugging wires, which greatly simplifies the charging process and improves the convenience of use.

[0076] However, the application of wireless charging technology to implantable medical devices still faces some challenges, such as charging efficiency, thermal management and biosafety. Despite this, this technology is still considered an important direction for the development of implantable medical devices in the future. Therefore, at the current research and development stage, it is necessary to measure the relationship between the distance angle and spatial position relationship between the transmitter and the receiver to measure the relationship between the charging power and efficiency of the inductive charging coil, so as to obtain an inductive charging coil that meets the actual production needs and can fully meet the requirements of implantable medical devices.

[0077] The existing experimental fixtures have the following disadvantages:

[0078] 1. There are metal parts around the transmitter. If there are metal parts around the transmitter during the inductive charging process, the efficiency and power of the inductive charging will be greatly affected, which will have a great impact on the experimental results. 2. The spatial dimensions of movement are limited. Most fixtures can only move in two dimensions: up and down and left and right rotation, which cannot meet the requirements of experiments under different distances and angles. 3. The accuracy is not high. When using ordinary fixtures, there is often no scale indication, and manual measurement is required, which often has low accuracy. 4. The environmental stability is poor. Under different temperatures and humidities, ordinary fixtures will deform and affect the experimental results. 5. It is impossible to observe data in dynamic conditions. If ordinary fixtures want to measure the data at the next position, they often need to be re-clamped and adjusted, and it is impossible to observe data while adjusting. 6. The clamping part cannot adapt to coils of different specifications. There is currently no special clamp suitable for coils.

[0079] In view of this, the inductive charging test fixture provided in the embodiment of the present application is designed to ensure that there are no metal parts in the transmitting range of the transmitting coil, thereby ensuring that the experimental results are not affected; and the receiving coil and / or the transmitting coil can be translated on the XYZ axis, and can also be rotated around the XY axis, which can meet the requirements of experiments at different spatial positions and angles; there are scale markings in the translation and rotation directions (the minimum unit of the scale marking is 0.5mm, and the angle is 0.5°), which can more accurately read the spatial position relationship between the transmitting end and the receiving end; the non-metallic structural parts are made of plastic materials, specifically including PC+glass fiber materials, and the metal parts are made of heat-resistant aluminum alloy. These two materials have excellent thermal stability between -40°C and 240°, ensuring the accuracy of experimental data at different temperatures; the spatial position of the transmitting coil and the receiving coil can be adjusted at any time, and the changes in the recorded data can be observed while adjusting; it can also meet the testing requirements of coils of different sizes.

[0080] It should be noted that the first direction in the embodiment of the present application is the X-axis direction in the figure, the second direction is the Y-axis direction in the figure, and the third direction is the Z-axis direction in the figure. The above is for the convenience of understanding the technical scheme of the embodiment of the present application and should not be understood as limiting the scope of protection of the embodiment of the present application.

[0081] The present application embodiment provides an inductive charging test fixture, such as Figures 1 to 4 As shown, it includes a base 10, a moving base 20, a supporting base 30, an angle adjustment mechanism 40 and a distance adjustment structure;

[0082] The movable base 20 is movably disposed on the base 10 , and the movable base 20 is used to carry the transmitting end coil 100 ;

[0083] The support base 30 is disposed on the base 10, and the support base 30 is used to support the receiving end coil 200;

[0084] The angle adjustment mechanism 40 is disposed on the support base 30, and the angle adjustment mechanism 40 is used to adjust the angle between the receiving end coil 200 and the transmitting end coil 100 in the first direction and the second direction;

[0085] The distance adjustment mechanism 50 is connected to the support base 30 , and is used to adjust the distance between the receiving end coil 200 and the transmitting end coil 100 in the third direction.

[0086] In the induction charging test fixture provided in the embodiment of the present application, most of the structural parts are made of non-metallic materials, and the overall structure makes the coil away from the metal parts, so as to reduce the interference with the test results; further, the movable seat 20 is movably arranged on the base 10, so the transmitting end coil 100 located on the movable seat 20 can be moved on the plane where the base 10 is located (that is, in the first direction and the second direction of the base 10), in other words, the position relationship between the transmitting end coil 100 and the receiving end coil 200 is adjusted from the two dimensions of the XY plane, the distance between the transmitting end coil 100 and the receiving end coil 200 in the third direction is adjusted by the distance adjustment structure, and the angle of the receiving end coil 200 with the first direction as the axis (X axis) and the second direction as the axis (Y axis) is adjusted by the angle adjustment component, so as to realize the position and angle relationship of five dimensions for testing, which can simulate the actual application scenario of the induction charging coil in the implantable medical device to the greatest extent, thereby obtaining accurate test results, which is conducive to the promotion and application of the induction charging coil.

[0087] In application, the base 10 is an object having a supporting plane, including but not limited to a table, the ground, etc.

[0088] In application, since the transmitting coil 100 is a charging end, its position is usually controllable and generally placed horizontally, and the receiving coil 200 is located in an implantable medical device, and its specific position will be different depending on the position of the implantation. Therefore, in the embodiment of the present application, the transmitting coil 100 is supported and carried by a movable seat 20 arranged on the base 10, and the receiving coil 200 is arranged on the support seat 30, and the position and angle relationship of the receiving end are adjusted by the angle adjustment mechanism 40 and the distance adjustment mechanism 50, which is conducive to truly simulating the position of the transmitting coil 100 and the receiving coil 200 during actual use, so as to obtain more accurate and closer experimental results to the actual use situation, which is conducive to obtaining an induction charging coil that better meets actual needs. In some embodiments, the positions of the receiving coil 200 and the transmitting coil 100 can be interchanged.

[0089] In application, the movable base 20 is movably arranged on the base 10. The movable arrangement means that the movable base 20 can move on the surface of the base 10, specifically, it moves on the XY axis, so as to simulate the positional relationship between the transmitting end coil 100 and the receiving end coil 200 for testing.

[0090] In application, the support base 30 is disposed on the base 10. Specifically, the support base 30 is located above the base 10, and the position and angle relationship between the support base 30 and the moving base 20 are adjusted by the angle adjustment mechanism 40 and the distance adjustment mechanism 50, so as to simulate the position and angle relationship between the transmitting end coil 100 and the receiving end coil 200, so as to perform the test.

[0091] In the application, most of the structural parts of the inductive charging test fixture are made of polycarbonate and glass fiber materials. This is because plastic has little effect on the magnetic induction between the receiving end coil 200 and the transmitting end, while metal has a greater effect on it; and the metal structural parts made of metal are also far away from the coil, thereby ensuring that the impact on the test results is minimized. Specifically, the base 10 and the moving base 20 are made of polycarbonate and glass fiber materials.

[0092] In some embodiments, Figures 1 to 3 , the support base 30 includes a coil box 31 and a support arm 32;

[0093] The coil box 31 is used to accommodate and fix the receiving end coil 200;

[0094] The support arm 32 includes a middle section 321, a first section 322 and a second section 323 extending along both sides of the middle section 321, the first section 322 and the second section 323 first extending in a direction away from each other and then extending in a direction approaching each other, the middle section 321 is movable along the third direction and arranged on the base 10, and the coil box 31 is arranged between the first section 322 and the second section 323;

[0095] An escape space is formed between the coil box 31 and the support arm 32 to reduce the interference of the support arm 32 on the test result.

[0096] In application, the coil box 31 is made of non-metallic material to avoid magnetic induction interference between the receiving end coil 200 and the transmitting end coil 100 .

[0097] In application, the support arm 32 is generally C-shaped, U-shaped or Y-shaped, so that the structural parts that are not in direct contact with the coil and the support arm 32 itself can be as far away as possible, thereby reducing interference with the test and improving the accuracy of the test results.

[0098] In some embodiments, Figures 1 to 3 As shown, the angle adjustment structure includes a first angle adjustment component 41 and a second angle adjustment component 42;

[0099] The first angle adjustment component 41 is disposed on the first section 322 and the second section 323 and is connected to the coil box 31. The first angle adjustment component 41 adjusts the angle between the receiving end coil 200 and the transmitting end coil 100 in the first direction by adjusting the coil box 31 to rotate around the first direction.

[0100] The second angle adjustment component 42 is connected to the middle section 321 . The second angle adjustment component 42 adjusts the middle section 321 to rotate around the second direction, thereby adjusting the angle between the receiving end coil 200 and the transmitting end coil 100 in the second direction.

[0101] In some embodiments, Figures 1 to 3 As shown, the first angle adjustment assembly 41 includes an angle adjustment knob 411 and a first clamping member 412;

[0102] The angle adjustment knob 411 is disposed on a side of the first section 322 away from the coil box 31;

[0103] One end of the first clamping member 412 is fixed to the coil box 31, and the other end of the first clamping member 412 is rotatably passed through the first section 322 and connected to the angle adjustment knob 411;

[0104] By adjusting the angle adjustment knob 411, the first clamping member 412 and the coil box 31 are driven to rotate, so as to adjust the angle between the receiving end coil 200 and the transmitting end coil 100 in the first direction.

[0105] In application, the first clamping member 412 is a coil clamp, and a slot is provided at the end of the coil clamp, which is engaged and fixed with the coil box 31 through the slot to fix the coil box 31. When the angle of the receiving end coil 200 in the coil box 31 needs to be adjusted, the angle adjustment knob 411 is rotated to adjust the angle of the receiving end coil 200 with the X-axis.

[0106] In some embodiments, Figures 1 to 3 As shown, the first angle adjustment assembly 41 further includes a fixing seat 413, a displacement adjustment knob 414, a rotating rod 415 and a second clamping member 416;

[0107] The fixing base 413 is installed on the second section 323;

[0108] The displacement adjustment knob 414 is rotatably disposed on the fixing seat 413;

[0109] One end of the rotating rod 415 is inserted into the second section 323 and connected to the displacement adjustment knob 414;

[0110] One end of the second clamping member 416 is connected to the coil box 31, and the other end of the second clamping member 416 is rotatably connected to the other end of the rotating rod 415;

[0111] The displacement adjustment knob 414 is adjusted to drive the rotating rod 415 to rotate, so that the second clamping member 416 is moved closer to or away from the coil box 31 .

[0112] In application, by adjusting the displacement adjustment knob 414, the rotating rod 415 is driven to rotate so that the second clamping member 416 is moved closer to or away from the coil box 31, thereby cooperating with the first clamping member 412 to fix the coil box 31 and improve the installation stability of the coil box 31. The first clamping member 412 and the second clamping member 416 are both coil clamps, and the structure of the second clamping member 416 is the same or similar to that of the first clamping member 412, which will not be described in detail here.

[0113] In application, the fixing seat 413 is installed on the second section 323, and one end is connected to the second section 323, and the other end extends toward the second section 323 in a direction away from the first section 322. The main function of the fixing seat 413 is to support and fix the displacement adjustment knob 414. The fixing seat 413 can also be integrally formed with the second section 323. One end of the rotating rod 415 is connected to the displacement adjustment knob 414, and the other end of the rotating rod 415 is connected to the second clamping member 416. By rotating the displacement adjustment knob 414, the rotating rod 415 can be driven to rotate, so that the second clamping member 416 is close to or away from the coil box 31. In some embodiments, a positioning groove is provided at the place where the coil box 31 cooperates with the first clamping member 412 and the second clamping member 416, so as to facilitate the first clamping member 412 and the second clamping member 416 to clamp and position the coil box 31.

[0114] In some embodiments, Figures 1 to 4 As shown, a first angle scale 417 is provided between the first section 322 and the angle adjustment knob 411, and a first pointer 418 is provided on the angle adjustment knob 411. The angle value between the receiving end coil 200 and the transmitting end coil 100 in the first direction is obtained by pointing the first pointer 418 to the angle value of the first angle scale 417. In this way, the angle data can be read quickly and accurately without the need for self-measurement, which is more convenient and quick to use. In application, the minimum unit of the first angle scale 417 is 0.5°, which can more accurately test the angle relationship between the receiving end coil 200 and the transmitting end coil 100 in the X-axis direction and the relationship between the charging power and efficiency.

[0115] In some embodiments, Figures 1 to 4 As shown, the second angle adjustment assembly 42 includes a damping shaft 421, a second angle scale 422 and a second pointer 423;

[0116] The damping shaft 421 is rotatably connected to the middle section 321 and the base 10, so that the entire support arm 32 can rotate around the second direction as the axis;

[0117] The second angle scale 422 is disposed on the middle section 321;

[0118] The second pointer 423 is disposed on the middle section 321;

[0119] The angle value between the receiving end coil 200 and the transmitting end coil 100 in the second direction is obtained by the angle value of the second angle scale 422 pointed by the second pointer 423 .

[0120] In this way, the angle data of the receiving coil 200 and the transmitting coil 100 in the Y-axis direction can be read quickly and accurately without the need for self-measurement, which is more convenient and quick to use. In application, the minimum unit of the second angle scale 422 is 0.5°, which can more accurately test the angle relationship between the receiving coil 200 and the transmitting coil 100 in the Y-axis direction and the relationship between the charging power and efficiency. In application, a scale fixing block 424 is also provided on the side of the middle section 321 away from the coil box 31, thereby improving the installation stability of the second angle scale 422.

[0121] In some embodiments, Figure 1 , Figures 4 to 6 As shown, the distance adjustment mechanism 50 includes a fixing rod 51 and a slider 52;

[0122] The fixing rod 51 is arranged on the base 10 along the third direction, and a first gear 511 is arranged on the fixing rod 51;

[0123] The slider 52 is sleeved on the fixing rod 51. The slider 52 is rotatably connected to the supporting arm 32. A second gear 521 is rotatably provided inside the slider 52. The second gear 521 is meshed with the first gear 511.

[0124] The second gear 521 is rotated to drive the support arm 32 to move on the fixed rod 51. Thus, the middle section 321 of the support arm 32 is connected to the slider 52 through the damping shaft 421, and the slider 52 is arranged on the fixed rod 51, so the entire support arm 32 is rotated along the Y axis through the damping shaft 421, thereby driving the receiving end coil 200 to rotate on the Y axis.

[0125] In application, the fixing rod 51 is also provided with a scale, so that the height of the supporting arm 32 in the third direction can be read in real time.

[0126] In application, the middle part of the slider 52 is hollowed out and mounted on the fixed rod 51. The first gear 511 on the fixed rod 51 is arranged along the third direction. A second gear 521 is rotatably arranged inside the slider 52. Through the engagement of the second gear 521 with the first gear 511, the second gear 521 is rotated to rotate the entire support arm 32 and the slider 52 to move along the direction of the first gear 511.

[0127] In some embodiments, Figures 4 to 6As shown, the distance adjustment mechanism 50 also includes a distance adjustment knob 53, which is rotatably arranged on the slider 52 and connected to the second gear 521. The second gear 521 is rotated by the distance adjustment knob 53, which is convenient for operation. In application, the slider 52 is provided with a mounting hole 520 along the first direction, and the second gear 521 is rollingly installed in the mounting hole 520. Two distance adjustment knobs 53 are arranged at both ends of the mounting hole 520, which are respectively fixedly connected to the two ends of the second gear 521, so that the height can be adjusted more conveniently.

[0128] In some embodiments, Figures 4 to 6 As shown, the distance adjustment mechanism 50 also includes a limit screw 54 and a limit knob 55. The limit screw 54 is arranged through the slider 52, one end of the limit screw 54 is in contact with the fixing rod 51, and the other end of the limit screw 54 is connected to the limit knob 55. The height of the slider 52 and the support arm 32 is fixed by the limit screw 54 and the knob. In application, a guide groove 510 is provided on one side of the fixing rod 51 close to the limit screw 54, and a buffer 56 is provided on one end of the limit screw 54 close to the guide groove 510. In this way, the friction loss between the limit screw 54 and the fixing rod 51 can be replaced by the buffer 56. Furthermore, the shape of the buffer 56 is adapted to the guide groove 510, so that the fit can be tighter.

[0129] In some embodiments, Figure 1 and Figure 7 As shown, the movable seat 20 includes a supporting portion 21 and a positioning portion 22;

[0130] The support part 21 is movably disposed on the base 10 , and the support part 21 is used to support the transmitting end coil 100 ;

[0131] The positioning portion 22 is connected to the supporting portion 21 and can move along the first direction and the second direction of the base 10 . The positioning portion 22 is used to cooperate with the base 10 to obtain position information of the transmitting end coil 100 .

[0132] In application, an indication point is provided on the positioning portion 22 and a coordinate axis is provided on the base 10. By reading the coordinates through the position of the positioning portion 22 on the base 10, the position information can be obtained.

[0133] In some embodiments, Figure 8As shown, the coil box 31 includes a first cover 311, a coil center axis 312 and a second cover 313; the coil center axis 312 is detachably arranged on the first cover 311, and the receiving end coil 200 is arranged on the first cover 311 and wound on the coil center axis 312; the second cover 313 is covered on the first cover 311, and the receiving end coil 200 is covered and limited. Among them, the coil center axis 312 is detachably arranged on the first cover 311, including but not limited to snap-on, threaded connection, plug-in and other methods. In this way, the corresponding coil center axis 312 can be selected for adaptation according to the size and specifications of the actual test coil, thereby improving the applicability of the induction charging test fixture.

[0134] In application, the steps for using the inductive charging test fixture include:

[0135] 1. Install the receiving end coil 200, specifically including selecting a coil center axis 312 with the same inner diameter as the receiving end coil 200 to be tested and installing it on the first cover 311, winding the receiving end coil 200 around the coil center axis 312, and leading out the positive and negative electrodes, and then covering the second cover 313 on the first cover 311;

[0136] 2. Install the coil box 31 on the support arm 32;

[0137] 3. Connect the power supply, oscilloscope, ammeter and other instruments to prepare for testing and recording data;

[0138] 4. Adjust the angle and spatial position of the receiving and transmitting ends to record the spatial position data and the data of instruments such as oscilloscopes and ammeters. In addition, the same method can be used to test implantable medical devices.

[0139] The inductive charging test fixture provided in the embodiment of the present application has the following advantages:

[0140] 1. The overall structure and materials used have little interference with the test results. Specifically, most of the non-metallic structural parts are used, and some metal structural parts are located far away from the coil, which minimizes the interference;

[0141] 2. It can move along the XYZ axis and rotate around the XY axis, so as to adjust the spatial position relationship between the receiving end and the transmitting end in five dimensions, covering all possible spatial position relationships in actual charging situations;

[0142] 3. It is convenient and quick to adjust and read data. There is no need to measure by yourself. Multiple dimensions can be adjusted to test and read data on each other. The spatial position can also be gradually adjusted to read the changes in data during a movement.

[0143] 4. Good adaptability, can test the receiving end coil 200 within 100mm in diameter, just need to replace the coil fixture of different sizes, or replace the chuck to test the whole product of different sizes;

[0144] 5. The overall weight is relatively small, and the small size makes it easy to put into the incubator to simulate human body temperature. The material is polycarbonate + glass fiber, and the metal part is made of heat-resistant aluminum alloy. These two materials have good thermal stability and rigidity;

[0145] 6. The scale can read the scale more accurately with the minimum distance unit of 0.5mm and the minimum angle of 0.5°.

[0146] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0147] The above-described embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the embodiments of the present application, and should all be included in the protection scope of the embodiments of the present application.

Claims

1. An induction charging test fixture, characterized in that: include: Pedestal; A movable seat, movably arranged on the base, and used for carrying the transmitting end coil; A support base, disposed on the base, and used to support the receiving end coil; An angle adjustment mechanism is provided on the support seat, and the angle adjustment mechanism is used to adjust the angle between the receiving end coil and the transmitting end coil in a first direction and a second direction; as well as A distance adjustment mechanism is connected to the support base, and the distance adjustment mechanism is used to adjust the distance between the receiving end coil and the transmitting end coil in the third direction.

2. The inductive charging test fixture according to claim 1, characterized in that: The support base comprises: A coil box, used to accommodate and fix the receiving end coil; The support arm comprises a middle section, a first section and a second section extending along two sides of the middle section, wherein the first section and the second section first extend in a direction away from each other and then extend in a direction approaching each other, the middle section is movable along a third direction and arranged on the base, and the coil box is arranged between the first section and the second section; Wherein, an avoidance space is formed between the coil box and the support arm to reduce the interference of the support arm on the test result.

3. The inductive charging test fixture as claimed in claim 2, characterized in that: The angle adjustment mechanism comprises: A first angle adjustment component is provided on the first section and the second section and is connected to the coil box. The first angle adjustment component adjusts the angle between the receiving end coil and the transmitting end coil in the first direction by adjusting the coil box to rotate around the first direction as an axis. The second angle adjustment component is connected to the middle section. The second angle adjustment component adjusts the angle between the receiving end coil and the transmitting end coil in the second direction by adjusting the middle section to rotate around the second direction.

4. The induction charging test fixture as claimed in claim 3, characterized in that: The first angle adjustment component comprises: An angle adjustment knob is provided on a side of the first section away from the coil box; A first clamping member, one end of which is fixed to the coil box, and the other end of which is rotatably passed through the first section and connected to the angle adjustment knob; The first clamping member and the coil box are driven to rotate by adjusting the angle adjustment knob, so as to adjust the angle between the receiving end coil and the transmitting end coil in the first direction.

5. The induction charging test fixture as claimed in claim 4, characterized in that: The first angle adjustment component also includes: A fixing seat, installed on the second section; A displacement adjustment knob, rotatably disposed on the fixing seat; a rotating rod, one end of which is passed through the second section and connected to the displacement adjustment knob; and A second clamping member, one end of which is connected to the coil box, and the other end of which is rotatably connected to the other end of the rotating rod; Wherein, by adjusting the displacement adjustment knob, the rotating rod is driven to rotate so that the second clamping member is moved closer to or away from the coil box.

6. The inductive charging test fixture as claimed in claim 4, characterized in that: A first angle scale is provided between the first section and the angle adjustment knob, and a first pointer is provided on the angle adjustment knob. The angle value between the receiving end coil and the transmitting end coil in the first direction is obtained by the first pointer pointing to the angle value of the first angle scale.

7. The inductive charging test fixture as claimed in claim 3, characterized in that: The second angle adjustment component comprises: A damping shaft, rotatably connected to the middle section and the base, so that the entire support arm can rotate around the second direction as an axis; A second angle scale, disposed on the middle section; and A second pointer, disposed on the middle segment; The angle value between the receiving end coil and the transmitting end coil in the second direction is obtained by the angle value of the second angle scale pointed by the second pointer.

8. The inductive charging test fixture according to any one of claims 1 to 7, characterized in that: The distance adjustment mechanism comprises: A fixing rod is arranged on the base along a third direction, and a first gear is arranged on the fixing rod; A slider is sleeved on the fixing rod, the slider is rotatably connected to the supporting arm, a second gear is rotatably arranged inside the slider, and the second gear is meshed with the first gear; Wherein, the support arm is driven to move on the fixing rod by rotating the second gear.

9. The inductive charging test fixture as claimed in claim 8, characterized in that: The distance adjustment mechanism further includes a distance adjustment knob, which is rotatably disposed on the slider and connected to the second gear; And / or, the distance adjustment mechanism further includes a limit screw and a limit knob, wherein the limit screw is arranged through the slider, one end of the limit screw abuts against the fixing rod, and the other end of the limit screw is connected to the limit knob.

10. The inductive charging test fixture according to any one of claims 1 to 7, characterized in that: The mobile seat comprises: A support part, movably disposed on the base, and used for supporting the transmitting end coil; The positioning part is connected to the supporting part and can move along the first direction and the second direction of the base. The positioning part is used to cooperate with the base to obtain the position information of the transmitting end coil.

Images