Intelligent current sensor based on IOLINK

Abstract

The intelligent current sensor comprises a first main body and a second main body which can be folded or separated, the contact surfaces of the first main body and the second main body are electrically connected when the first main body and the second main body are folded, and a first gap is formed between the first main body and the second main body when the second main body is separated; the correction mechanisms are arranged on the front side and the rear side of the annular main body, each correction mechanism comprises a regular polygon frame with the center coinciding with the axis of the center through hole, each regular polygon frame comprises a first frame connected with the first main body and a second frame connected with the second main body, and the first frames and the second frames can be folded / separated; a second gap is formed when the first frame is separated from the second frame; one or more frame edges of the regular polygon frame are provided with movable push plates, and the movable push plates tend to move towards the center of the regular polygon frame, so that the wire harnesses are gathered at the center of the regular polygon frame. According to the invention, wire harnesses in the current sensor can be increased without disconnecting a circuit, the wire harnesses can be concentrated at the axis of the current sensor, and the detection precision is improved.

Description

Technical Field

[0001] The present application relates to the field of current detection technology, and in particular to an IOLINK-based intelligent current sensor. Background Art

[0002] As a non-access component that can detect the current size in the wiring harness, the current sensor is widely used in many places. Sometimes, in order to improve the detection accuracy or match the corresponding equipment, it is necessary to wind more turns of the wiring harness inside it.

[0003] However, most of the current current sensors are closed inside. When more turns of the wiring harness are needed, the line needs to be disconnected and re-threaded, which is a cumbersome operation. In order to ensure the accuracy of the measurement, the wiring harness needs to be located as close to the axis of the current sensor as possible. However, the current current sensors cannot ensure that the wiring harness is concentrated on the axis, resulting in errors in detection.

[0004] Therefore, in view of the above technical problems, how to add a wiring harness inside the current sensor and ensure that the wiring harness is concentrated at the axis is a technical problem that needs to be solved by those skilled in the art. Summary of the invention

[0005] The purpose of this application is to provide an IOLINK-based intelligent current sensor, which can add a wiring harness inside the current sensor without disconnecting the circuit, which is convenient and quick, and can concentrate the wiring harness at the axis of the current sensor to improve detection accuracy.

[0006] To achieve the above object, the present application provides an IOLINK-based intelligent current sensor, comprising an annular body with a central through hole, wherein a coil for working is arranged inside the annular body, wherein the annular body comprises a first body and a second body that can be closed or separated, wherein the contact surfaces of the two bodies are electrically connected when closed, and a first gap is formed when separated;

[0007] It also includes a correction mechanism disposed on the front and rear sides of the annular body, the correction mechanism includes a regular polygonal frame whose center coincides with the axis of the central through hole, the regular polygonal frame includes a first frame connected to the first body and a second frame connected to the second body, the first body and the second body are closed / separated to drive the first frame and the second frame to close / separate, and a second gap is formed when the first frame and the second frame are separated, and the first gap cooperates with the second gap to form a channel for the wire harness to enter the central through hole;

[0008] Wherein, a movable push plate is provided on one or more frame edges of the regular polygonal frame, and the movable push plate has a tendency to move toward the center of the regular polygonal frame so as to gather the wire harness at the center of the regular polygonal frame.

[0009] Preferably, the annular body also includes a first end cover arranged on the front and rear sides of the first body, and a second end cover arranged on the front and rear sides of the second body. An interlayer for accommodating the correction mechanism is provided between the first end cover and the first body, and between the second end cover and the second body. The first end cover and the second end cover can be closed or separated.

[0010] Preferably, it also includes a connecting mechanism, which includes a slide plate arranged on the left side of the first main body and a movable baffle arranged on the right side of the first main body, and the left and right sides of the second main body are respectively provided with storage cavities corresponding to the positions of the slide plate and the movable baffle, and the slide plate and the movable baffle are respectively movably inserted into the storage cavity, and under the limit of the storage cavity, a stable plug-in fit between the first main body and the second main body is formed, and the first main body is closed / separated from the second main body along the insertion / extraction direction of the slide plate and the movable baffle, and during the separation process, the movable baffle detaches from the corresponding storage cavity before the slide plate, so that the first gap is formed between the movable baffle and the second main body.

[0011] Preferably, the slide plate is provided with a slide, and the slide includes a first horizontal groove provided at the upper part, a second horizontal groove provided at the middle part, a first vertical groove located at the ends of the first horizontal groove and the second horizontal groove and connecting the two, and a second vertical groove provided at the lower part and the lower end of which extends to the outside of the slide plate, and the upper end of the second vertical groove is connected to the non-end position of the second horizontal groove;

[0012] A third horizontal groove communicating with the receiving cavity is formed on the left side wall of the second body, and a separation push button is provided in the third horizontal groove, one end of the separation push button is located outside the second body, and the other end extends into the receiving cavity and slidably cooperates with the slide groove;

[0013] Wherein, when the separation push button is located in the first horizontal groove, the first body and the second body are closed; when the separation push button is located in the first vertical groove, the first body and the second body can be separated, and when the separation push button is located at the bottom of the first vertical groove or the separation push button is located in the second horizontal groove, the movable baffle disengages from the corresponding accommodating cavity to form the first gap.

[0014] Preferably, the movable baffle is rotatably arranged on the first main body, and a movable opening is provided on the inner side of the storage cavity corresponding to the movable baffle. When the separation push button is located at the bottom end of the first vertical groove or in the second horizontal groove, the movable baffle can be rotated inwardly through the movable opening to form the first gap between the movable baffle and the second main body.

[0015] Preferably, the number of sides of the regular polygonal frame is 2N, where N is an integer greater than or equal to 2, the regular polygonal frame includes 2N connecting rods connected end to end in sequence, the connecting rods are arranged in a V shape, and the opening angle of the V shape is the internal angle of the regular polygonal frame, the first frame includes N connecting rods corresponding to the first main body, the second frame includes N connecting rods corresponding to the second main body, and the side edges of the connecting rods at the junction of the first frame and the second frame are parallel to the slide plate and the movable baffle.

[0016] Preferably, the correction mechanism also includes a movable block for slidingly connecting adjacent connecting rods, the number of the movable blocks is 2N, a through hole is provided on the movable block, the side edges of two adjacent connecting rods slide into the through hole, the movable block is movably connected to a limit block, the limit block is located in the interlayer and fixedly connected to the annular body, and the movable direction of the movable block relative to the limit block is perpendicular to the side of the regular polygon where the movable block is located.

[0017] Preferably, sliding pins are provided at the intersection of both side edges of the connecting rod, and limiting grooves are provided on the first main body and the second main body facing the interlayer side, and the sliding pins extend into the limiting grooves. The sliding pins slide in the limiting grooves along a radial direction with the center of the polygonal frame as the center.

[0018] Preferably, the movable block is located at the midpoint of each side of the polygonal frame, and the movable block is provided with an extension protrusion extending toward the center of the polygonal frame, the movable push plate is provided on the extension protrusion, and a return spring is also fixedly provided on the movable block, and the return spring is fixedly connected to the side wall corresponding to the interlayer, and is used for providing an elastic force for the movable block or the movable push plate to move toward the center of the polygonal frame.

[0019] Preferably, a positioning push button is also provided on the movable block, and a positioning groove corresponding to the positioning push button is provided on the first end cover or the second end cover, the positioning push button extends out of the interlayer through the positioning groove, and the positioning push button slides radially in the positioning groove with the center of the polygonal frame as the center.

[0020] Compared with the above background technology, the first body and the second body of the present application can be closed or separated, and a first gap is formed when they are separated. At the same time, the relative movement generated when the first body and the second body are closed or separated will drive the first frame and the second frame to close or separate, so that the first frame and the second frame will generate a second gap when they are separated. The first gap and the second gap cooperate to form a channel for the wiring harness to enter the central through hole. The wiring harness inside the current sensor can be increased without disconnecting the line, which is convenient and quick. In addition, the correction mechanism of the present application includes a regular polygonal frame whose center coincides with the axis of the central through hole. A movable push plate is provided on one or more frame edges of the polygonal frame. The multiple movable push plates are rotationally symmetrical, and the movable push plates have a tendency to move toward the center of the regular polygonal frame, so that the wiring harness can be squeezed to a certain extent to gather at the axis of the central through hole, thereby ensuring the detection accuracy of the wiring harness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, 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 embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an IOLINK-based intelligent current sensor provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of the IOLINK-based intelligent current sensor provided in an embodiment of the present application from another perspective;

[0024] Figure 3 A schematic diagram of the connection structure between the first main body and the connection mechanism provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the chute configuration structure provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of a second main structure provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the coordination structure between the correction mechanism and the second body provided in the embodiment of the present application;

[0028] Figure 7 A schematic structural diagram of another perspective of the cooperation between the correction mechanism and the second body provided in the embodiment of the present application;

[0029] Figure 8 A schematic diagram of a regular polygonal frame structure provided in an embodiment of the present application;

[0030] Fig. 9 This is a schematic diagram of the connecting rod structure provided in an embodiment of the present application.

[0031] In the figure: 1-annular body; 11-first body; 12-second body; 121-storage cavity; 122-limiting groove; 123-third horizontal groove; 124-separation push button; 125-movable opening; 13-central through hole; 14-second end cover; 15-first end cover;

[0032] 2-Connection end;

[0033] 3-connecting mechanism; 31-slide plate; 311-slide; 3111-first horizontal slot; 3112-first vertical slot; 3113-second horizontal slot; 3114-second vertical slot; 32-movable baffle;

[0034] 4-correction mechanism; 41-limiting block; 42-sliding pin; 43-regular polygonal frame; 43a-first frame; 43b-second frame; 431-connecting rod; 44-movable block; 45-reset spring; 46-positioning push button; 47-extension protrusion; 48-movable push plate. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] like Figure 1 and Figure 2As shown, in this embodiment, an IOLINK-based intelligent current sensor is provided, including an annular body 1 provided in a central through hole 13, in which a wiring harness to be detected is placed, and the current detection of the wiring harness is realized in cooperation with the coil in the annular body 1. The annular body 1 includes a first body 11 and a second body 12 that can be closed or separated, and the first body 11 and the second body 12 can move relative to each other. When the two move toward each other, the first body 11 and the second body will gradually move closer, and finally form a closed state of mutual contact, at which time the contact surfaces of the first body 11 and the second body 12 are electrically connected, thereby forming an annular body 1 structure with a central through hole 13.

[0039] It can be predicted that since a central through hole 13 is provided in the middle of the annular body 1, a partial slot structure constituting the central through hole 13 is provided on the first body 11 and the second body 12 respectively, so that when the first body 11 and the second body 12 are closed, a central through hole 13 structure is formed.

[0040] When the first body 11 and the second body 12 move in opposite directions, they will gradually move away from each other, so as to be separated at a certain position. After the separation, a first gap will be formed between the first body 11 and the second body 12 .

[0041] A correction mechanism 4 is also provided on the front and rear sides of the annular body 1. Figure 6 and Figure 7 The correction mechanism 4 includes a regular polygonal frame 43 whose center coincides with the axis of the central through hole 13, and the wire harness can be placed in the central through hole 13 and the regular polygonal frame 43 at the same time. Figure 8 The regular polygon frame 43 includes a first frame 43a and a second frame 43b, which correspond to the first body 11 and the second body 12 respectively, and the first frame 43a is connected to the first body 11, and the second frame 43b is connected to the second body 12. When the first body 11 and the second body 12 move relative to each other, the first frame 43a and the second frame 43b can also move relative to each other, so that the first frame 43a and the second frame 43b are closed or separated.

[0042] Specifically, when the first body 11 and the second body 12 are closed together, the first frame 43a and the second frame 43b can be brought together; when the first body 11 and the second body 12 are separated, the first frame 43a and the second frame 43b can also be driven to separate. On this basis, when the first body 11 and the second body 12 are separated and a first gap is generated, the first frame 43a can also be separated from the second frame 43b, so that a second gap is generated between the first frame 43a and the second frame 43b, and the first gap cooperates with the second gap to form a channel for the wiring harness to enter the central through hole 13.

[0043] In addition, a movable push plate 48 is provided on one or more frame edges of the regular polygonal frame 43. Figure 6 The movable push plate 48 tends to move toward the center of the regular polygonal frame 43, so that the wire harness is gathered at the center of the regular polygonal frame 43, that is, gathered at the axis of the central through hole 13 through the movement and extrusion of the movable push plate 48, thereby ensuring the detection effect.

[0044] In summary of the above embodiments, the first body 11 and the second body 12 of the present application can be closed or separated, and a first gap is formed when they are separated. At the same time, the relative movement generated when the first body 11 and the second body 12 are closed or separated will drive the first frame 43a and the second frame 43b to close or separate, so that the first frame 43a and the second frame 43b will generate a second gap when they are separated. The first gap and the second gap cooperate to form a channel for the wiring harness to enter the central through hole 13. The wiring harness inside the current sensor can be increased without disconnecting the line, which is convenient and quick. In addition, the correction mechanism 4 of the present application includes a regular polygonal frame 43 whose center coincides with the axis of the central through hole 13, and a movable push plate 48 is provided on one or more frame edges of the polygonal frame. The multiple movable push plates 48 are rotationally symmetrical, and the movable push plates 48 have a tendency to move toward the center of the regular polygonal frame 43, so that the wiring harness can be squeezed to a certain extent to gather at the axis of the central through hole 13, thereby ensuring the detection accuracy of the wiring harness.

[0045] Please refer to Figure 3 and Figure 5 The annular body 1 also includes a first cover plate arranged on the front and rear sides of the first body 11, and a second end cover 14 arranged on the front and rear sides of the second body 12. An interlayer for accommodating the correction mechanism 4 is provided between the first end cover 15 and the first body 11, and between the second end cover 14 and the second body 12. That is, the front and rear sides of the annular body 1 cooperate with the cover plate to form an interlayer, and the entire interlayer is roughly annular in structure. The regular polygonal frame 43 is placed in the interlayer, and it is ensured that the first frame 43a in the regular polygonal frame 43 corresponds to the first body 11, and the second frame 43b corresponds to the second body 12.

[0046] It should be pointed out that since the first body 11 and the second body 12 will produce relative movement to achieve closing and separation, the first end cover 15 and the second end cover 14 will also be driven to achieve closing and separation; and due to the existence of the central through hole 13, it is also necessary to provide a corresponding slot structure on the first end cover 15 and the second end cover 14, so that when the first end cover 15 and the second end cover 14 are closed, the slot structures on the first end cover 15 and the second end cover 14 will also be closed, thereby forming a part of the central through hole 13.

[0047] The current sensor also includes a connecting mechanism 3, see Figure 3The connecting mechanism 3 includes a slide plate 31 arranged on the left side of the first body 11 and a movable baffle 32 arranged on the right side of the first body 11. The left and right sides of the second body 12 are respectively provided with storage cavities 121 corresponding to the positions of the slide plate 31 and the movable baffle 32. During the closing or separation process of the first body 11 and the second body 12, the slide plate 31 and the storage cavity 121, the movable baffle 32 and the storage cavity 121 can produce a certain limiting effect on the relative movement of the first body 11 and the second body 12, thereby ensuring the stable closing or separation of the first body 11 and the second body 12.

[0048] It can be seen that the present application adopts a plug-in method to achieve the closing or separation of the first body 11 and the second body 12. Specifically, the slide plate 31 and the movable baffle 32 are respectively movably inserted into the storage cavity 121, and a stable plug-in fit between the first body 11 and the second body 12 is formed under the limit of the storage cavity 121; and the first body 11 is closed / separated from the second body 12 along the insertion / extraction direction of the slide plate 31 and the movable baffle 32, and during the separation process, the movable baffle 32 is separated from the corresponding storage cavity 121 before the slide plate 31, so that a first gap is formed between the movable baffle 32 and the second body 12.

[0049] Please refer to Figure 3 and Figure 4 The slide plate 31 is provided with a slide 311, which includes a first horizontal groove 3111 provided at the upper part, a second horizontal groove 3113 provided at the middle part, a first vertical groove 3112 located at the ends of the first horizontal groove 3111 and the second horizontal groove 3113 and connecting the two, and a second vertical groove 3114 provided at the lower part and extending to the outside of the slide plate 31, and the upper end of the second vertical groove 3114 is connected to the non-end position of the second horizontal groove 3113. Please refer to Figure 7 A third horizontal groove 123 communicating with the receiving cavity 121 is formed on the left side wall of the second body 12, and a separation push button 124 is provided in the third horizontal groove 123. One end of the separation push button 124 is located outside the second body 12, and the other end extends into the receiving cavity 121 and slidably cooperates with the slide groove 311.

[0050] When the separation push button 124 is located in the first horizontal groove 3111, the first body 11 and the second body 12 are closed, and the left and right sides of the first body 11 are in contact with the two sides of the second body 12; when the first body 11 and the second body 12 need to be separated, the separation push button 124 can be pushed to make it slide along the first horizontal groove 3111 to the position of the first vertical groove 3112 under the restriction of the third horizontal groove 123. At this time, the vertical restriction of the first body 11 and the second body 12 is released, so the vertical separation of the first body 11 and the second body 12 can be achieved, that is, the separation push button 124 can slide in the first vertical groove 3112 , and the first body 11 and the second body 12 remain relatively fixed in the horizontal direction during the separation process; when the separation push button 124 moves to the bottom end along the first vertical groove 3112, the first body 11 and the second body 12 have completed the first stage of separation, and the separation push button 124 can enter the second horizontal groove 3113. The first body 11 and the second body 12 have increased vertical restrictions, and when the separation push button 124 is located at the bottom end of the first vertical groove 3112 or the separation push button 124 is located in the second horizontal groove 12, the movable baffle 32 can be separated from the corresponding accommodating cavity, thereby forming a first gap between the movable baffle 32 and the second body 12.

[0051] When the separation push button 124 is located in the second horizontal groove 3113, the slide plate 31 has not separated from the accommodating cavity, so the first body 11 is still connected to the second body 12 on one side of the slide plate 31, but the movable baffle 32 is separated on one side. At this time, the wiring harness can enter the central through hole 13 through the first gap on the separation side.

[0052] Furthermore, the movable baffle 32 can be rotatably disposed on the first body 11 via a rotating shaft or other structures, please refer to Figure 7 A movable opening 125 is provided on the inner side of the storage cavity 121 corresponding to the movable baffle 32, where the inner side refers to the side close to the central through hole 13, and the opposite side refers to the outer side; when the separation push button 124 is located at the bottom end of the first vertical groove 3112 or in the second horizontal groove 3113, that is, after the first end separation of the first body 11 and the second body 12 is completed, the lower end of the movable baffle 32 can correspond to the position of the movable opening 125, so that the movable baffle 32 can be rotated inwardly through the movable buckle, while the outer side cannot be rotated outwardly because it is higher than the movable opening 125, so that the first gap is formed between the movable baffle 32 and the second body 12 through the rotation of the movable baffle 32.

[0053] In addition, a reset spring can be provided on the separation push button 124, and the reset spring can drive the separation push button 124 to slide to the initial end of the first horizontal groove 3111 and the second horizontal groove 3113, that is, one end away from the first vertical groove 3112, so that after completing the separation of one end, the separation push button 124 can automatically enter the second horizontal groove 3113, completing the vertical limiting of the first body 11 and the second body 12 after the first separation, thereby preventing the two from accidentally falling out.

[0054] When the first body 11 and the second body 12 need to be completely separated, the separation push button 124 can be pushed to the position of the second vertical groove 3114. Since the lower end of the second vertical groove 3114 is connected to the outside of the slide plate 31, that is, the lower end is provided with an opening, the second section of separation of the first body 11 and the second body 12, that is, complete separation, can be completed.

[0055] Please refer to Figure 8 and Fig. 9 , the regular polygonal frame 43 includes a plurality of connecting rods 431 connected end to end in sequence, the connecting rods 431 are arranged in a V shape, and the side edges of the plurality of connecting rods 431 together constitute the side of the regular polygonal frame 43. Part of the connecting rods 431 serve as the first frame 43a of the regular polygonal frame 43, and the other part of the connecting rods 431 serve as the second frame 43b of the regular polygonal frame 43. Further, the adjacent connecting rods 431 are connected by a movable block 44, and a through hole is provided on the movable block 44, and the side edges of two adjacent connecting rods 431 can be slidably extended into the through hole; in other words, in two adjacent connecting rods 431, the side edge of one connecting rod 431 only occupies half of the through hole, and the side edge of the other connecting rod 431 occupies the other half of the through hole, that is, two side edges of different connecting rods 431 can be slidably arranged in one through hole. Moreover, the two side edges of the connecting rod 431 are not on the same plane, and there is a height difference in the setting position, so as to ensure that the side edges of the adjacent connecting rods 431 can be located in the through hole at the same time.

[0056] The movable block 44 is movably connected to the limit block 41. The limit block 41 usually appears in pairs to ensure the sliding stability of the movable block 44 relative to the limit block 41. The limit block 41 is located in the interlayer and fixedly connected to the annular body 1; that is, the limit block 41 corresponding to the first body 11 is fixedly connected to the first body 11, and the limit block 41 corresponding to the second body 12 is fixedly connected to the second body 12. The movable direction of the movable block 44 relative to the limit block 41 is perpendicular to the side of the regular polygon where the movable block 44 is located, and on the basis of the sliding setting of the connecting rod 431 relative to the movable block 44, the diameter of the circumscribed circle of the regular polygon frame 43 can be changed by changing the position of the movable block 44 relative to the limit block 41, so as to adapt to the different outer diameters formed by different turn harnesses.

[0057] Please refer to Figure 7A sliding pin 42 is provided at the intersection of both sides of the connecting rod 431, and a limiting groove 122 is opened on the first body 11 and the second body 12 facing the interlayer. The sliding pin 42 is slidably set in the corresponding limiting groove 122, and the sliding pin 42 slides in the limiting groove 122 along a radial direction with the center of the polygonal frame as the center of the circle.

[0058] It should be noted that the setting of the regular polygonal frame 43 must ensure that the first body 11 and the second body 12 can be opened normally, and the first body 11 and the second body 12 are in the form of linear motion during the opening process. Therefore, the side of the connecting rod 431 at the intersection of the first frame 43a and the second frame 43b is required to be parallel to the slide plate 31 and the movable baffle 32, so that the first body 11 and the second body 12 can be separated normally, and during the separation process of the first body 11 and the second body 12, the connecting rod 431 at the intersection of the first frame 43a and the second frame 43b can be driven to separate, thereby forming a second gap.

[0059] On this basis, in order to ensure that the side of the connecting rod 431 at the junction of the first frame 43a and the second frame 43b is parallel to the slide plate 31 and the movable baffle 32, it is necessary to set the number of sides of the regular polygonal frame 43 to 2N, where N is an integer greater than or equal to 2, and the number of connecting rods 431 is 2N. Taking the regular polygonal frame 43 as a regular hexagon as an example, at this time N=3, the V-shaped opening angle of the connecting rod 431 is the internal angle of the regular polygonal frame 43, that is, the opening angle of the connecting rod 431 is 120°, the first frame 43a includes N connecting rods 431 corresponding to the first body 11, and the second frame 43b includes N connecting rods 431 corresponding to the second body 12. The number of movable blocks 44 is 2N, and they are located at the midpoint of each side of the polygonal frame.

[0060] The sides of the regular hexagon can be approximately regarded as being composed of the side sides of two connecting rods 431. When the first body 11 and the second body 12 complete the first stage of separation, the first body 11 will drive the connecting rod 431 at the intersection of the first frame 43a and the second frame 43b to slide out of the movable block 44 under the cooperation of the limiting groove 122 and the sliding pin 42, so that the first frame 43a and the second frame 43b are separated, forming a second gap, and the wiring harness can enter the central through hole 13 through the first gap and the second gap. After the first frame 43a and the second frame 43b are separated, the frame facing the deformation will maintain a regular polygon shape under the joint limiting action of the limiting groove 122 and the sliding pin 42, the movable block 44 and the connecting rod 431, and the movable block 44 and the limiting block 41, but the sides of the regular polygon may be discontinuous to a certain extent, and the diameter of the circumscribed circle facing the deformation will change to a certain extent, but the overall contour still remains a regular polygon.

[0061] A positioning push button 46 is also provided on the movable block 44. When the first frame 43a and the second frame 43b need to be inserted back to form a complete and continuous deformation frame, the positioning push button 46 can be pushed to make the movable block 44 move inward and outward under the guidance of the limit block 41. During the movement, the movable block 44 will drive one side of the corresponding connecting rod 431 to move, and under the further restriction of the limiting groove 122, the other side of the connecting rod 431 will move inward and outward, thereby adjusting the position of the side of the connecting rod 431, so that the connecting rod 431 in the first frame 43a can cooperate with the connecting rod 431 in the second frame 43b and slide into the through hole of the movable block 44.

[0062] Please refer to Figure 6 , an extension protrusion 47 extending toward the center of the polygonal frame is provided on the movable block 44, and a movable push plate 48 is provided on the extension protrusion 47. A return spring 45 is also fixedly provided on one or more movable blocks 44, and the return spring 45 is fixedly connected to the side wall of the corresponding interlayer. The return spring 45 is used to provide elastic force for the movable block 44 or the movable push plate 48 to move toward the center of the polygonal frame. A positioning groove corresponding to the positioning push button 46 is provided on the first end cover 15 or the second end cover 14, and the positioning push button 46 extends out of the interlayer through the positioning groove. The positioning push button 46 slides radially in the positioning groove with the center of the polygonal frame as the center of the circle. When the wiring harness is located in the central through hole 13, under the action of the return spring 45, the movable push plate 48 will be driven to move inward toward the axis of the central through hole 13 in the above process, thereby completing the adjustment of the wiring harness position.

[0063] A connection terminal 2 is also provided on the first body 11. The connection terminal 2 has an analog-to-digital conversion module and adopts a unified three-wire interface for connecting to an IOLINK master station device.

[0064] In general, the present application can keep the wiring harness located in the central through hole 13 in the center of the through hole through the correction mechanism 4, thereby improving the accuracy of current detection and reducing the detection error; at the same time, the annular body 1 and the correction mechanism 4 can be closed and separated, and cooperate with the connecting mechanism 3 to realize the two-section separation of the annular body 1. The first section of separation can ensure that the first body 11 and the second body 12 are not completely separated, and only the first gap and the second gap for the one-way entry of the wiring harness are set on one side. The one-way entry is formed by the cooperation of the movable baffle 32 and the movable opening 125, so that when the wiring harness remains connected, the wiring harness is wound around a few more turns and passed through the central through hole 13, and the design of the movable opening 125 can ensure that the internal wiring harness will not be easily moved out, thereby ensuring that it is not easy to make mistakes when there are many internal wiring harnesses. The second section of separation will completely separate the first body 11 and the second body 12, thereby facilitating the disassembly of the equipment or moving the internal wiring harness outward.

[0065] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0066] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An IOLINK-based intelligent current sensor, comprising an annular body (1) provided with a central through hole (13), wherein a coil for operation is provided inside the annular body (1), characterized in that: The annular body (1) comprises a first body (11) and a second body (12) which can be closed or separated, wherein contact surfaces of the two bodies are electrically connected when closed, and a first gap is formed between the two bodies when separated; The invention also comprises a correction mechanism (4) arranged on the front and rear sides of the annular body (1), the correction mechanism (4) comprising a regular polygonal frame (43) whose center coincides with the axis of the central through hole (13), the regular polygonal frame (43) comprising a first frame (43a) connected to the first body (11), and a second frame (43b) connected to the second body (12), the closing / separation of the first body (11) and the second body (12) driving the closing / separation of the first frame (43a) and the second frame (43b), and forming a second gap when the first frame (43a) and the second frame (43b) are separated, the first gap cooperates with the second gap to form a channel for the wiring harness to enter the central through hole (13); A movable push plate (48) is provided on one or more frame edges of the regular polygonal frame (43), and the movable push plate (48) has a tendency to move toward the center of the regular polygonal frame (43) so as to gather the wire harness at the center of the regular polygonal frame (43).

2. The IOLINK-based intelligent current sensor according to claim 1, characterized in that: The annular body (1) further comprises a first end cover (15) provided on the front and rear sides of the first body (11), and a second end cover (14) provided on the front and rear sides of the second body (12); an interlayer for accommodating the correction mechanism (4) is provided between the first end cover (15) and the first body (11), and between the second end cover (14) and the second body (12); the first end cover (15) and the second end cover (14) can be closed or separated.

3. The IOLINK-based intelligent current sensor according to claim 2, characterized in that: The invention also comprises a connecting mechanism (3), wherein the connecting mechanism (3) comprises a slide plate (31) arranged on the left side of the first main body (11) and a movable baffle (32) arranged on the right side of the first main body (11); the second main body (12) is provided with storage cavities (121) corresponding to the positions of the slide plate (31) and the movable baffle (32) on the left and right sides respectively; the slide plate (31) and the movable baffle (32) are respectively movably inserted into the storage cavity (121); and the storage cavity (121) is provided with a plurality of movable baffles (32) arranged on the right and left sides respectively. 1), the first body (11) and the second body (12) are stably plugged together under the limit of the sliding groove plate (31), and the first body (11) is closed / separated from the second body (12) along the insertion / extraction direction of the sliding groove plate (31) and the movable baffle plate (32), and during the separation process, the movable baffle plate (32) is separated from the corresponding storage cavity (121) before the sliding groove plate (31), so that the first gap is formed between the movable baffle plate (32) and the second body (12).

4. The IOLINK-based intelligent current sensor according to claim 3, characterized in that: The slide plate (31) is provided with a slide groove (311), and the slide groove (311) comprises a first horizontal groove (3111) provided at the upper part, a second horizontal groove (3113) provided at the middle part, a first vertical groove (3112) located at the ends of the first horizontal groove (3111) and the second horizontal groove (3113) and connecting the two, and a second vertical groove (3114) provided at the lower part and the lower end of which extends to the outside of the slide plate (31), and the upper end of the second vertical groove (3114) is connected to the non-end position of the second horizontal groove (3113); A third horizontal groove (123) communicating with the storage cavity (121) is formed on the left side wall of the second body (12); a separation push button (124) is provided in the third horizontal groove (123); one end of the separation push button (124) is located outside the second body (12); the other end of the separation push button (124) extends into the storage cavity (121) and slidably cooperates with the slide groove (311); When the separation push button (124) is located in the first horizontal groove (3111), the first body (11) and the second body (12) are closed; when the separation push button (124) is located in the first vertical groove (3112), the first body (11) and the second body (12) are separable, and when the separation push button (124) is located at the bottom of the first vertical groove (3112) or the separation push button (124) is located in the second horizontal groove (3113), the movable baffle (32) is separated from the corresponding accommodating cavity to form the first gap.

5. The IOLINK-based intelligent current sensor according to claim 4, characterized in that: The movable baffle (32) is rotatably mounted on the first main body (11), and a movable opening (125) is provided on the inner side of the storage cavity (121) corresponding to the movable baffle (32). When the separation push button (124) is located at the bottom of the first vertical groove (3112) or in the second horizontal groove (3113), the movable baffle (32) can be rotated inwardly through the movable opening (125) to form the first gap between the movable baffle (32) and the second main body (12).

6. The IOLINK-based intelligent current sensor according to claim 3, characterized in that: The number of sides of the regular polygonal frame (43) is 2N, wherein N is an integer greater than or equal to 2. The regular polygonal frame (43) comprises 2N connecting rods (431) connected end to end in sequence, the connecting rods (431) are arranged in a V-shape, and the opening angle of the V-shape is the internal angle of the regular polygonal frame (43). The first frame (43a) comprises N connecting rods (431) corresponding to the first body (11), the second frame (43b) comprises N connecting rods (431) corresponding to the second body (12), and the side edges of the connecting rods (431) at the junction of the first frame (43a) and the second frame (43b) are parallel to the slide plate (31) and the movable baffle (32).

7. The IOLINK-based intelligent current sensor according to claim 6, characterized in that: The correction mechanism (4) further comprises a movable block (44) for slidably connecting adjacent connecting rods (431), the number of the movable blocks (44) being 2N, the movable blocks (44) being provided with a through hole, the side edges of two adjacent connecting rods (431) slidingly extending into the through hole, the movable block (44) being movably connected to a limit block (41), the limit block (41) being located in the interlayer and fixedly connected to the annular body (1), and the movable direction of the movable block (44) relative to the limit block (41) being perpendicular to the side of the regular polygon where the movable block (44) is located.

8. The IOLINK-based intelligent current sensor according to claim 7, characterized in that: Sliding pins (42) are provided at the intersection of both sides of the connecting rod (431), and limiting grooves (122) are provided on the first body (11) and the second body (12) facing the interlayer, and the sliding pins (42) extend into the limiting grooves (122). The sliding pins (42) slide in the limiting grooves (122) along a radial direction with the center of the polygonal frame as the center.

9. The IOLINK-based intelligent current sensor according to claim 8, characterized in that: The movable block (44) is located at the midpoint of each side of the polygonal frame, and the movable block (44) is provided with an extension protrusion (47) extending toward the center of the polygonal frame, and the movable push plate (48) is provided on the extension protrusion (47). The movable block (44) is also fixedly provided with a return spring (45), and the return spring (45) is fixedly connected to the side wall corresponding to the interlayer, and is used to provide elastic force for the movable block (44) or the movable push plate (48) to move toward the center of the polygonal frame.

10. The IOLINK-based intelligent current sensor according to claim 9, characterized in that: The movable block (44) is also provided with a positioning button (46), and a positioning groove corresponding to the positioning button (46) is provided on the first end cover (15) or the second end cover (14). The positioning button (46) extends out of the interlayer through the positioning groove, and the positioning button (46) slides in the positioning groove along a radial direction with the center of the polygonal frame as the center.

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