Hollow coil

Abstract

The utility model relates to a hollow coil, relates to hollow coil technical field, including coil body, first joint, second joint, support sleeve and sleeve seat, coil body sleeve support sleeve peripheral surface, support sleeve peripheral surface and sleeve seat inner peripheral surface are both equipped with screw thread, first joint, second joint, support sleeve and sleeve seat inner peripheral surface are equipped with screw thread. The inner circumferential surface of the sleeve seat is in threaded connection with the outer circumferential surface of the supporting sleeve, and the first joint and the second joint are arranged on the coil body and are electrically connected with the coil body. According to the utility model, the supporting sleeve is arranged in the hollow coil, so that the coil can be supported and protected, and the coil is prevented from being deformed under the action of external force to influence the normal use of the coil.

Description

Technical Field

[0001] This application relates to the field of air-core coil technology, and more particularly to an air-core coil. Background Technology

[0002] An air-core coil is an AC current sensor, consisting of a hollow ring-shaped coil available in both flexible and rigid forms. It can be directly wrapped around the conductor being measured to determine AC current. Air-core coils are suitable for measuring AC current over a wide frequency range, have no special requirements for conductor or size, and possess rapid instantaneous response capabilities. They are widely used in situations where traditional current measuring devices, such as current transformers, cannot be used, for current measurement, especially high-frequency, high-current measurements.

[0003] Currently, Chinese utility model patent application CN220895318U, published on May 3, 2024, provides a hollow coil, including a wire winding and bakelite bases installed at the upper and lower ends of the wire winding. Each bakelite base has an annular bakelite board inside its ring, and four connecting plates are fixedly connected between the annular bakelite board and the bakelite base. The end coils of the wire winding are respectively embedded in the annular cavity formed between the bakelite base and the annular bakelite board. This utility model strengthens the most unstable part of the hollow coil by fixing the coil part connected to the lead end at the upper and lower ends of the hollow coil, thereby improving the overall stability of the hollow coil. The reinforcing component at the lead end not only strengthens the lead end but also effectively prevents the coil part connected to the lead end from loosening when the lead end is moved during installation, further improving the stability of the hollow coil.

[0004] In related technologies, hollow coils, due to the relatively soft material of the coil wires, may deform during storage and transportation due to collisions with external objects, thus affecting the normal use of the coil. Utility Model Content

[0005] This application provides a hollow coil, which can improve the technical problem in related technologies where coils are easily deformed by external forces.

[0006] This application provides a hollow coil, including: a coil body, a first connector, a second connector, a support sleeve, and a sleeve seat. The coil body is sleeved on the outer circumferential surface of the support sleeve. Threads are provided on both the outer circumferential surface of the support sleeve and the inner circumferential surface of the sleeve seat. The inner circumferential surface of the sleeve seat is threaded to the outer circumferential surface of the support sleeve. The first connector and the second connector are both disposed on the coil body and electrically connected to the coil body.

[0007] The technical solutions described above in this application embodiment have at least the following technical effects: When the coil is subjected to collision or compression by external objects during transportation and storage, the support sleeve and sleeve seat can provide support and protection for the coil body to prevent deformation of the coil body and thus prevent the coil from being used normally. When installing the coil, if it is necessary to remove the support sleeve and sleeve seat, the user can twist the sleeve seat to separate it from the support sleeve, and then take out the coil body, which is more convenient to use.

[0008] The hollow coil provided in this application embodiment has a support sleeve inside the hollow coil, which can support and protect the coil and prevent the coil from deforming due to external force, thus affecting the normal use of the coil.

[0009] In some embodiments, an adhesive layer is provided at the bottom of the support sleeve.

[0010] In some embodiments, release paper is adhered to the side of the adhesive layer away from the support sleeve.

[0011] In some embodiments, both the support sleeve and the sleeve seat are provided with snap-fit ​​rings, and the first connector and the second connector are snapped into the snap-fit ​​rings.

[0012] In some embodiments, both the first connector and the second connector are provided with a connecting component. The connecting component includes a retaining ring, a connecting bolt, and a nut. The retaining ring has a through hole, and one end of the connecting bolt passes through the through hole and is threadedly connected to the nut.

[0013] In some embodiments, a rubber ring is fitted on both the first connector and the second connector, and the rubber ring is interference-fitted with the first connector and the second connector, respectively. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A schematic diagram of the overall structure of a hollow coil provided in an embodiment of this application;

[0016] Figure 2 for Figure 1 Enlarged view of part A;

[0017] Figure 3 An exploded structural diagram of the supporting sleeve and sleeve base;

[0018] Figure 4 This is an exploded view of the connecting components.

[0019] The following are the labeling elements in the figure:

[0020] 1. Coil body; 2. First connector; 3. Second connector; 4. Support sleeve; 41. Adhesive layer; 42. Release paper; 43. Snap ring; 5. Sleeve seat; 6. Connecting assembly; 61. Fixing ring; 611. Through hole; 62. Connecting bolt; 63. Nut; 7. Rubber ring. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] To address the issue of coils in related technologies being easily deformed by external forces, the embodiments of this application provide the following solutions.

[0024] Please refer to the following: Figures 1 to 3 This application provides a hollow coil, which includes a coil body 1, a first connector 2, a second connector 3, a support sleeve 4, and a sleeve base 5.

[0025] Please refer to the following: Figures 1 to 3 The coil body 1 is sleeved on the outer circumferential surface of the support sleeve 4. Threads are provided on both the outer circumferential surface of the support sleeve 4 and the inner circumferential surface of the sleeve seat 5. The inner circumferential surface of the sleeve seat 5 is threaded to the outer circumferential surface of the support sleeve 4. The first connector 2 and the second connector 3 are both provided on the coil body 1 and electrically connected to the coil body 1. The support sleeve 4 and the sleeve seat 5 are both provided with snap rings 43. The first connector 2 and the second connector 3 are snapped inside the snap rings 43.

[0026] As can be seen from the above, the hollow coil provided in this application embodiment can be protected by the support sleeve 4 and sleeve seat 5 when the coil is subjected to collision or compression by external objects during transportation and storage, so as to prevent the coil body 1 from deforming and causing the coil to malfunction. When installing the coil, the user needs to twist the first connector 2 and the second connector 3 to connect them to the corresponding wiring positions. The snap ring 43 can fix the first connector 2 and the second connector 3 near the coil body 1, preventing the first connector 2 or the second connector 3 from pulling the wires on the coil body 1 during wiring, which would cause the coil body 1 to deform. It can also make the connection between the first connector 2 and the second connector 3 and the external circuit more stable. If it is necessary to remove the support sleeve 4 and the sleeve seat 5, the user can take out the first connector 2 and the second connector 3 from the snap ring 43, then twist the sleeve seat 5 to separate it from the support sleeve 4, and then take out the coil body 1. It is convenient to use.

[0027] In some embodiments, please refer to the following: Figure 1 and Figure 2 The bottom of the support sleeve 4 is provided with an adhesive layer 41, and the side of the adhesive layer 41 away from the support sleeve 4 is bonded with release paper 42.

[0028] With this design, when installing the coil, the user can peel off the release paper 42 and directly adhere the support sleeve 4 to the appropriate position through the adhesive layer 41, thereby completing the overall fixation of the coil without the need for other fixing tools, which makes it convenient for the user to install the coil. When transporting and storing the coil, the release paper 42 can protect the adhesive layer 41 from scratches by external objects, ensuring the adhesion effect of the adhesive layer 41.

[0029] In some embodiments, please refer to Figures 1 to 4 Both the first connector 2 and the second connector 3 are provided with a connecting component 6. The connecting component 6 includes a fixing ring 61, a connecting bolt 62 and a nut 63. The fixing ring 61 has a through hole 611. One end of the connecting bolt 62 passes through the through hole 611 and is threadedly connected to the nut 63. Both the first connector 2 and the second connector 3 are fitted with rubber rings 7, which cooperate with the first connector 2 and the second connector 3 respectively.

[0030] With this configuration, when the user connects the first connector 2 to an external circuit, if the external circuit has mounting threads, the user can loosen the nut 63 to separate it from the connecting bolt 62. At this time, the retaining ring 61 opens under its own elastic force, and the inner wall of the retaining ring 61 separates from the outer circumference of the first connector 2. The user can then rotate the retaining ring 61 around the first connector 2 to a suitable angle. The rubber ring 7 prevents the retaining ring 61 from falling off the first connector 2. When it is necessary to move the position of the retaining ring 61 on the first connector 2, the user can push the rubber ring 7 to move it on the first connector 2, and then move the retaining ring 61 to the appropriate position. Next, the user can screw the connecting bolt 62 into the threaded hole of the external circuit and screw the nut 63 back onto the connecting bolt 62 to press the retaining ring 61. At this time, the inner wall of the retaining ring 61 will press against the first connector 2, thereby ensuring a good electrical connection between the two and fixing the first connector 2 to prevent it from falling off the retaining ring 61. Similarly, the second connector 3 can also be connected to ensure the stability of the connection between the coil and the external circuit. If the retaining ring 61 is not needed when installing the coil, the user can directly remove the rubber ring 7 from the first connector 2 and the second connector 3, and then remove the retaining ring 61.

[0031] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hollow coil, characterized in that: The device includes a coil body (1), a first connector (2), a second connector (3), a support sleeve (4), and a sleeve seat (5). The coil body (1) is sleeved on the outer circumferential surface of the support sleeve (4). Threads are provided on both the outer circumferential surface of the support sleeve (4) and the inner circumferential surface of the sleeve seat (5). The inner circumferential surface of the sleeve seat (5) is threaded to the outer circumferential surface of the support sleeve (4). The first connector (2) and the second connector (3) are both provided on the coil body (1) and electrically connected to the coil body (1).

2. The hollow coil according to claim 1, characterized in that: The bottom of the support sleeve (4) is provided with an adhesive layer (41).

3. A hollow coil according to claim 2, characterized in that: Release paper (42) is bonded to the side of the adhesive layer (41) away from the support sleeve (4).

4. A hollow coil according to any one of claims 1-3, characterized in that: Both the support sleeve (4) and the sleeve seat (5) are provided with snap rings (43), and the first connector (2) and the second connector (3) are snapped inside the snap rings (43).

5. A hollow coil according to claim 4, characterized in that: Both the first connector (2) and the second connector (3) are provided with a connecting component (6). The connecting component (6) includes a fixing ring (61), a connecting bolt (62) and a nut (63). The fixing ring (61) has a through hole (611). One end of the connecting bolt (62) passes through the through hole (611) and is threadedly connected to the nut (63).

6. A hollow coil according to claim 5, characterized in that: Both the first connector (2) and the second connector (3) are fitted with rubber rings (7), and the rubber rings (7) are respectively press-fitted with the first connector (2) and the second connector (3).

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