A spherical fixed coil

Abstract

The present application relates to a spherical fixed coil, comprising a plurality of frames and a fixed plate, wherein the frames are arc-shaped, and the plurality of frames are arranged in a circumferential array, and the plurality of fixed plates are provided with two, and the two fixed plates are respectively located at the two ends of the frames, and the plurality of frames are connected to the fixed plate, and the plurality of frames form a plurality of winding grooves for winding cables, and the plurality of winding grooves are distributed along the length direction of the frames; the outer side surface of the frames is provided with a first clamping groove, and a partition is provided between the plurality of frames, and the partition is clamped in the first clamping groove, and the plurality of partitions are provided, and the plurality of partitions are distributed along the length direction of the frames so that two adjacent partitions form a winding groove. The present application has the effect of improving the stability of cable installation.

Description

Technical Field

[0001] The present application relates to the technical field of coils, and in particular to a spherical fixed coil. Background Art

[0002] In a high-power communication transmission system, the antenna tuning circuit is one of the important components of the system. It is mainly composed of a number of capacitor devices and antenna tuning coil devices. The two parts are connected in series to achieve matching of the transmitter impedance and the antenna impedance. In a high-power communication transmission system, common antenna tuning coils are mainly fixed coils and adjustable coils, which are selected according to the different impedance matching requirements of the system. The commonly used fixed coils in high-power communication transmission systems are all cylindrical single-layer or multi-layer coils. They are mainly composed of a cylindrical winding barrel and a winding cable. The winding cable is stacked on the cylindrical barrel from bottom to top according to the parameter requirements. However, the existing cylindrical coil cable is wound flat on the surface of the cylindrical barrel, and it is difficult to fix the cable after stacking. Utility Model Content

[0003] In order to improve the stability of cable installation, the present application provides a spherical fixed coil.

[0004] The present application provides a spherical fixed coil adopting the following technical solution:

[0005] A spherical fixed coil comprises a plurality of frames and a fixing plate, wherein the frames are arc-shaped, and the plurality of frames are arranged in a circular array. There are two fixing plates, and the two fixing plates are respectively located at the two ends of the frames. The plurality of frames are connected to the fixing plates, and the plurality of frames form winding grooves for winding cables, and the plurality of winding grooves are distributed along the length direction of the frames. A first clamping groove is provided on the outer side surface of the frames, and partitions are arranged between the plurality of frames, and the partitions are clamped in the first clamping grooves. There are a plurality of partitions, and the plurality of partitions are distributed along the length direction of the frames so that two adjacent partitions form winding grooves.

[0006] By adopting the above technical solution, during installation, the partitions are installed on the first clamping grooves of the skeleton in sequence to form a winding groove for winding the cable, and several skeletons are connected through the partitions, thereby improving the structural strength of the coil and enhancing the vibration resistance of the skeleton; on the other hand, the winding space formed by the skeleton is partitioned by the partitions, and when the cable is wound in the winding groove, two adjacent partitions can fix the cable, thereby improving the stability of the cable installation; and the coil is spherical, and the spherical coil has better magnetic field stability and uniformity.

[0007] Optionally, the partition is in a ring shape.

[0008] By adopting the above technical solution, the partition is in a circular ring shape, and a plurality of skeletons are sleeved and limited by the partition.

[0009] Optionally, both ends of the frame are provided with locking keys, and the fixing plate is provided with a second locking groove for the locking keys to be locked.

[0010] By adopting the above technical solution, there are locking keys on both sides of the skeleton. During installation, the locking keys on both sides of the skeleton are locked in the second locking grooves on the fixing plates on both sides, and several skeletons are fixed by the fixing plates.

[0011] Optionally, a first through hole connected to the second clamping groove is formed through the side wall of the fixing plate, and a second through hole is formed on the clamping key. When the clamping key is clamped in the second clamping groove, the first through hole and the second through hole are coaxially arranged, and the fixing plate is provided with a bolt pair that is penetrated through the first through hole.

[0012] By adopting the above technical solution, when installing the coil, the locking keys on both ends of the skeleton are locked in the second locking grooves. At this time, the first through-hole and the second through-hole are coaxially arranged, and then the bolt pair is successively penetrated through the first through-hole and the second through-hole, so as to further fix the skeleton and the fixing plate.

[0013] Optionally, the fixing plate is in the shape of a hollow ring.

[0014] By adopting the above technical solution, the center of the fixing plate is hollowed out into a circular ring shape, thereby achieving the purpose of weight reduction.

[0015] Optionally, the frame is made of epoxy phenolic glass material, and the bolt pair is made of polytetrafluoroethylene material.

[0016] By adopting the above technical scheme, on the one hand, the skeleton is made of epoxy phenolic glass material, so that the skeleton has excellent insulation properties, and the strength, rigidity and toughness of the skeleton can be improved, and the price of epoxy phenolic glass material is moderate, which is suitable for skeletons with larger consumables; and the bolt pair is made of polytetrafluoroethylene material, which can improve the insulation and toughness of the bolt pair.

[0017] Optionally, a convex key is provided in the middle of the skeleton at the upper and lower sides, and a third penetration hole is formed through the convex key, and the two third penetration holes are coaxially arranged.

[0018] By adopting the above technical solution, a third penetration hole is opened on the frame to facilitate the connection between the spherical coil and the fixed shaft of the external device, thereby achieving the installation effect.

[0019] Optionally, multiple layers of cables are wound in the winding groove.

[0020] By adopting the above technical solution, a multi-layer stacking method is selected to wind the spherical fixed coil, that is, multiple layers are stacked in the winding groove before winding the next diameter, thereby increasing the inductance of the coil.

[0021] In summary, the utility model has the following beneficial effects:

[0022] 1. During installation, the partitions are sequentially installed on the first clamping groove of the frame to form a winding groove for winding the cable, and several frames are connected through the partitions, thereby improving the structural strength of the coil and enhancing the vibration resistance of the frame; on the other hand, the partitions are used to partition the winding space formed by the frame. After the cable is wound in the winding groove, two adjacent partitions can fix the cable, thereby improving the stability of cable installation;

[0023] 2. When installing the coil, the locking keys on both ends of the frame are locked in the second locking grooves. At this time, the first through hole and the second through hole are coaxially arranged, and then the bolt pair is successively penetrated through the first through hole and the second through hole to further fix the frame and the fixing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of this embodiment;

[0025] Figure 2 Schematic diagram of the installation of the partition in this embodiment;

[0026] Figure 3 yes Figure 2 A magnified schematic diagram of center A.

[0027] In the figure, 1, skeleton; 11, first clamping groove; 12, clamping key; 13, second through-hole; 2, fixing plate; 21, first through-hole; 22, bolt pair; 23, convex key; 231, third through-hole; 24, second clamping groove; 3, partition; 31, winding groove. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-3 This application is described in further detail.

[0029] The present application embodiment discloses a spherical fixed coil, referring to Figure 1 and Figure 2 , including several skeletons 1 and fixed plates 2, the skeleton 1 is arc-shaped, and the several skeletons 1 are arranged in a circular array around the axis of the fixed plate 2. Two fixed plates 2 are provided, and the two fixed plates 2 are respectively located at both ends of the skeleton 1. The two ends of the skeleton 1 are respectively connected to the fixed plates 2 on both sides. The several skeletons 1 form several winding grooves 31 for winding cables, and the several winding grooves 31 are distributed along the length direction of the skeleton 1.

[0030] Reference Figure 2 and Figure 3 Both ends of the skeleton 1 are fixedly connected with a locking key 12, and the fixing plate 2 is provided with a second locking groove 24 for the locking key 12 to be locked. There are a plurality of second locking grooves 24, and the plurality of second locking grooves 24 are arranged in a circular array around the axis direction of the fixing plate 2.

[0031] Reference Figure 2 and Figure 3 The outer peripheral wall of the fixing plate 2 is provided with a plurality of first through-holes 21, which are arranged in a circular array around the axis direction of the fixing plate 2. The plurality of first through-holes 21 correspond to the plurality of second clamping grooves 24 respectively, and the first through-holes 21 are connected to the corresponding second clamping grooves 24. The clamping key 12 is provided with a second through-hole 13, and when the clamping key 12 is clamped in the second clamping groove 24, the first through-hole 21 and the second through-hole 13 are coaxially arranged. The fixing plate 2 is provided with a bolt pair 22 which is sequentially penetrated in the first through-hole 21 and the second through-hole 13, and the fixing plate 2 is in a hollow annular shape.

[0032] Reference Figure 2 and Figure 3 The outer side of the skeleton 1 is provided with a first clamping groove 11, and there are a plurality of first clamping grooves 11, and the plurality of first clamping grooves 11 are distributed along the extension direction of the skeleton 1. A partition 3 is provided between the plurality of skeletons 1, and the partition 3 is in a circular ring shape. The partition 3 is sleeved between the plurality of skeletons 1, and the partition 3 is clamped in the first clamping groove 11. There are a plurality of partitions 3, and the plurality of partitions 3 are distributed along the length direction of the skeleton 1 so that a winding groove 31 is formed between two adjacent partitions 3. Multiple layers of cables are wound in the winding groove 31, and preferably 3 layers in this embodiment. The spherical fixed coil is wound in a multi-layer stacking manner, that is, multiple layers need to be stacked in the winding groove 31 before winding the next diameter, thereby increasing the inductance of the coil.

[0033] Reference Figure 2 and Figure 3 The middle part of the frame 1 at the upper and lower sides is provided with a protruding key 23, and the protruding key 23 is penetrated by a third through hole 231, and the two third through holes 231 are coaxially arranged.

[0034] Reference Figure 2 and Figure 3 The frame 1 is made of epoxy phenolic glass material, and the bolt pair 22 is made of polytetrafluoroethylene material. On the one hand, the frame 1 is made of epoxy phenolic glass material, so that the frame 1 has excellent insulation, and can improve the strength, rigidity and toughness of the frame 1. The price of epoxy phenolic glass material is moderate, and it is suitable for the frame 1 with large consumables; and the bolt pair 22 is made of polytetrafluoroethylene material, which can improve the insulation and toughness of the bolt pair 22.

[0035] The implementation principle of a spherical fixed coil in an embodiment of the present application is: the winding space formed by the skeleton 1 is partitioned by the partition 3. After the cable is wound in the winding groove 31, two adjacent partitions 3 can fix the cable, thereby improving the stability of the cable installation.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spherical fixed coil, characterized in that: The invention comprises a plurality of frames (1) and a fixing plate (2), wherein the frame (1) is in an arc shape, and the plurality of frames (1) are arranged in a circular array, and two fixing plates (2) are provided, and the two fixing plates (2) are respectively located at two ends of the frame (1), and the plurality of frames (1) are connected to the fixing plate (2), and the plurality of frames (1) form a plurality of winding grooves (31) for winding cables, and the plurality of winding grooves (31) are distributed along the length direction of the frame (1); a first clamping groove (11) is provided on the outer side surface of the frame (1), and a partition (3) is arranged between the plurality of frames (1), and the partition (3) is clamped in the first clamping groove (11), and a plurality of the partitions (3) are provided, and the plurality of the partitions (3) are distributed along the length direction of the frame (1) so that two adjacent partitions (3) form a winding groove (31).

2. A spherical fixed coil according to claim 1, characterized in that: The partition (3) is in the shape of a circular ring.

3. A spherical fixed coil according to claim 1, characterized in that: Both ends of the frame (1) are provided with locking keys (12), and the fixing plate (2) is provided with a second locking groove (24) for the locking keys (12) to be locked.

4. A spherical fixed coil according to claim 3, characterized in that: A first through hole (21) connected to a second clamping groove (24) is formed through a side wall of the fixing plate (2), and the clamping key (12) is formed with a second through hole (13). When the clamping key (12) is clamped in the second clamping groove (24), the first through hole (21) and the second through hole (13) are coaxially arranged, and the fixing plate (2) is provided with a bolt pair (22) penetrated through the first through hole (21).

5. The spherical fixed coil according to claim 1, characterized in that: The fixing plate (2) is in the shape of a hollow ring.

6. A spherical fixed coil according to claim 4, characterized in that: The frame (1) is made of epoxy phenolic glass material, and the bolt pair (22) is made of polytetrafluoroethylene material.

7. The spherical fixed coil according to claim 1, characterized in that: A convex key (23) is provided in the middle of the frame (1) at the upper and lower sides, and a third penetration hole (231) is formed through the convex key (23), and the two third penetration holes (231) are coaxially arranged.

8. The spherical fixed coil according to claim 1, characterized in that: Multiple layers of cables are wound in the winding groove (31).

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