Wire protecting device and phase shifting device

Abstract

The utility model provides a wire protection device and a phase shift device, the wire protection device comprises a holding structure and a wire protection portion, the holding structure comprises a side plate and a pair of clamping arms, the pair of clamping arms are respectively arranged on two sides of the side plate in the vertical direction to form a holding space, and the holding space is arranged in the holding structure. The wire protection part is arranged on one side of the side plate in the longitudinal direction, a wire protection channel extending in the longitudinal direction is arranged on the wire protection part, and the wire protection channel is used for installing a cable. The holding structure of the wire protection device can hold the cavity of the phase shifter well, so that the wire protection device is stably arranged on the cavity, and the wire protection part of the wire protection device can fix and guide the cable well, so that the cable can be led into the cavity well.

Description

Technical Field

[0001] This utility model belongs to the field of mobile communication technology, specifically relating to a line protection device and a phase shifting device configured with the line protection device. Background Technology

[0002] In the field of electrically tunable base station antennas, the phase shifter is a crucial core component that affects antenna performance, and its operational stability directly relates to the stability and reliability of the entire antenna system.

[0003] As the signal transmission medium between the phase shifter and the external RF module, the coaxial cable at both ends (i.e., the connection points with the phase shifter's input / output ports) is prone to loosening, wear, or signal attenuation due to mechanical vibration, temperature changes, or electromagnetic interference, thus affecting the phase accuracy and reliability of the phase shifter. Therefore, effectively fixing and protecting the coaxial cable (especially the two ends) welded to the phase shifter cavity surface is a key aspect of improving the overall antenna performance.

[0004] Currently, the industry mainly adopts the following two technical solutions for fixing and protecting the coaxial cables at both ends of the phase shifter: Solution 1: The cable protection device partially wraps around the surface of the RF cavity, and combines it with the strip groove structure on the outside of the cavity to position and protect the coaxial cable. This solution achieves initial cable fixation through partial wrapping of the cable protection device and mechanical limiting of the strip groove, but its structure is complex, requires precise matching of the cavity shape, and requires multiple adjustments to the position of the cable protection device during assembly. Solution 2: The cable protection device is completely sleeved on the outside of the RF cavity, covering the strip groove area of ​​the cavity to fix the coaxial cable distributed along the groove. Although this solution can provide more comprehensive protection, the cable protection device and the RF cavity must be designed to correspond strictly, resulting in poor versatility. The fully wrapped structure increases material costs and processing difficulty, and the redundant structure may interfere with cavity heat dissipation, affecting system stability.

[0005] Both of the above solutions have significant drawbacks: (1) Structural complexity and low assembly efficiency: The cooperation between the wire protection device and the RF cavity requires high-precision processing and a complicated assembly process, which leads to increased production costs and a decrease in yield; (2) Insufficient versatility and flexibility: The wire protection device and the RF cavity need to be designed one-to-one, which makes it difficult to adapt to phase shifter products of different specifications or iterative upgrades; (3) Cost and performance contradiction: The redundant wrapping structure not only increases material costs, but may also reduce system reliability due to poor heat dissipation or electromagnetic shielding problems. Utility Model Content

[0006] The primary objective of this invention is to solve at least one of the aforementioned problems by providing a line protection device and a phase shifting device.

[0007] To achieve the various objectives of this utility model, the following technical solution is adopted:

[0008] One of the purposes of this utility model is to provide a cable protection device, including a holding structure and a cable protection part. The holding structure includes a side plate and a pair of clamping arms. The pair of clamping arms are respectively disposed on both sides of the side plate in the vertical direction to form a holding space. The cable protection part is disposed on one side of the side plate in the longitudinal direction. The cable protection part is provided with a cable protection channel extending along the longitudinal direction. The cable protection channel is used to install cables.

[0009] In one embodiment, the end of the clamping arm away from the side plate constitutes an elastic clamping portion, and the elastic clamping portions of the pair of clamping arms are opposite to each other and facing each other.

[0010] In one embodiment, the elastic clamping part is provided with a limiting part, which protrudes toward another elastic clamping part.

[0011] In one embodiment, a sliding limiting part is provided on the side plate, the sliding limiting part is disposed in the holding space, and the sliding limiting part extends along the longitudinal direction.

[0012] In one embodiment, the wire protection portion further includes a fixing plate, which is disposed on one side of the longitudinal direction of the holding structure, and the fixing plate is connected to the side plate and the pair of clamping arms respectively.

[0013] In one embodiment, the wire protection section includes a plurality of wire protection channels, among which a pair of first wire protection channels are arranged vertically along the vertical direction and the first wire protection channels are located on the inner side of the side plate.

[0014] In one embodiment, the plurality of protective channels further includes at least one pair of second protective channels, each pair of second protective channels being arranged vertically along the vertical direction, each pair of second protective channels being arranged side by side with the pair of first protective channels, and the first protective channels and the second protective channels being located on opposite sides of the side plate in the lateral direction.

[0015] In one embodiment, the first wire protection channel is a through-hole structure penetrating the wire protection portion; the second wire protection channel is a through-hole structure penetrating the wire protection portion, or the wire protection portion is provided with a clip with a semi-enclosed structure, and the semi-enclosed channel in the clip constitutes the second wire protection channel.

[0016] To meet one of the purposes of this utility model, a phase shifting device is provided, comprising a phase shifter and a cable protection device as described in any of the preceding purposes. The phase shifter includes a cavity, and the cable protection device is disposed at one end of the cavity. The holding structure of the cable protection device holds the cavity accordingly. The cavity is provided with a cable groove, and the cable protection channel is provided correspondingly to the cable groove. An external cable extends into the cavity by passing through the cable protection channel and the cable groove in sequence.

[0017] In one embodiment, the cavity is provided with two cavity plates, which are disposed between the pair of clamping arms, and each clamping arm abuts against the adjacent cavity plate. The cavity plate is provided with a limiting hole, and the clamping arm is provided with a limiting part, which is inserted into the limiting hole.

[0018] Compared with the prior art, the present invention has many advantages, including but not limited to:

[0019] On the one hand, existing phase shifters often come in various sizes. Traditional cable protection devices are usually designed specifically for specific cavities, requiring different models of devices for different sizes, increasing inventory costs and reducing production efficiency. The cable protection device of this invention features a semi-open gripping structure consisting of a side plate and a pair of clamping arms. By assembling with the phase shifter cavity, a single cable protection device can adapt to cavities of different sizes. The semi-open gripping structure, with its inherent elasticity, can tightly fit the ends of cavities of different sizes, eliminating the need for a dedicated cable protection device for each cavity size. This high adaptability and versatility greatly improves the efficiency of the cable protection device. Furthermore, the cable protection section is used to fix and guide the cable. Located on one side of the gripping structure, the gripping structure does not need to participate in guiding and fixing the cable, preventing it from interfering with cable fixation.

[0020] On the other hand, in the traditional assembly process of line protection devices, additional screws and other reinforcing components are usually required to ensure that the line protection device can be firmly installed on the cavity of the phase shifter. The line protection device of this invention uses a clamping structure to hold and fix the end of the cavity, eliminating the need for traditional screw reinforcement. The design of the clamping structure itself allows it to be directly and firmly clamped to the end of the cavity without the need for additional screws or other components. Installation is completed simply by aligning the clamping structure of the line protection device with the end of the cavity and gently pushing it in, greatly improving assembly efficiency and reducing potential errors and problems during assembly. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 This is a first-view structural schematic diagram of the wire protection device according to a typical embodiment of the present invention.

[0023] Figure 2 This is a second-view structural schematic diagram of the wire protection device according to a typical embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the wire protection device according to an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the wire protection device according to another embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the phase shifter provided by this utility model.

[0027] Figure 6 This is a schematic diagram of the phase-shifting device according to a typical embodiment of the present invention. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model and should not be construed as limiting this utility model.

[0029] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, and / or components, nor does it exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0030] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0031] This utility model provides a cable protection device that can be adapted to the cavity of phase shifters of different sizes. The cable protection device is used to hold the end of the cavity and fix and guide the coaxial cable so as to guide the coaxial cable into the cable groove on the side wall of the cavity.

[0032] In a typical embodiment of this utility model, combined with Figure 1 , Figure 2 , Figure 5 and Figure 6 The cable protection device 10 includes a holding structure 100 and a cable protection part 200. The cable protection part 200 is disposed on the holding structure 100. The holding structure 100 is used to hold the cavity 410 of the phase shifter 400. The cable protection part 200 is used to fix the coaxial cable 500 and guide the coaxial cable 500 to the cavity 410.

[0033] The holding structure 100 includes a side plate 110 and a pair of clamping arms 120. The pair of clamping arms 120 are respectively disposed on both sides of the side plate 110 in the vertical direction, and the pair of clamping arms 120 are respectively connected to the side plate 110, so that the side plate 110 and the pair of clamping arms 120 surround and form a holding space 130. In this embodiment, the holding space 130 is an open slot structure. It is recommended that the cross-section of the holding space 130 be a U-shaped open slot, but this should not be construed as a limitation of this utility model.

[0034] The holding space 130 extends along the longitudinal direction of the side plate 110, and the longitudinal direction is the same as the extending direction of the cavity 410 of the phase shifter 400. The holding space 130 is through-connected along the longitudinal direction. The wire protection device 10 of this utility model consists of the side plate 110 and the pair of clamping arms 120 forming a semi-open holding structure 100. This semi-open holding structure 100 can be assembled onto cavities 410 of different sizes, making the wire protection device 10 highly adaptable and versatile.

[0035] The clamping arm 120 has a head end and an end end at its two ends along the lateral direction of the side plate 110. The head end of the clamping arm 120 is connected to the side plate 110, and the end end is away from the side plate 110, forming an elastic clamping portion 121. The pair of clamping arms are referred to as the first clamping arm 140 and the second clamping arm 150, respectively. The elastic clamping portion of the first clamping arm 140 is called the first elastic clamping portion 141, and the elastic clamping portion of the second clamping arm 150 is called the second elastic clamping portion 151. The first elastic clamping portion 141 and the second elastic clamping portion 151 are opposite to each other and face each other.

[0036] The cavity 410 of the phase shifter 400 is formed by a plurality of cavity plates 411 connected in sequence to enclose the cavity 410 in a cuboid structure. The holding structure 100 can hold one section of the cavity 410, and the section of the cavity 410 held by the holding structure 100 is called the holding section 412. The holding section 412 is located near one end of the cavity 410. A portion of the holding section 412 enters the holding space 130 of the holding structure 100, so that the holding structure 100 can hold the holding section 412 tightly, and the wire protection device 10 is stably held on the cavity 410.

[0037] Specifically, the cavity 410 includes a first cavity plate 413, a second cavity plate 414, and a third cavity plate 415, wherein the second cavity plate 414 and the third cavity plate 415 are respectively disposed on both sides of the first cavity plate 413 along the vertical direction. When the holding structure 100 holds the holding section 412, a section of the first cavity plate 413 in the longitudinal direction enters the holding space 130. The first cavity plate 413 is arranged parallel to the side plate 110, and the side plate 110 is opposite to and facing the first cavity plate 413. A portion of the second cavity plate 414 in the transverse direction enters the holding space 130, and a portion of the third cavity plate 415 in the transverse direction enters the holding space 130.

[0038] In the vertical direction, the first clamping arm 140 and the second cavity plate 414 are arranged vertically, and the first elastic clamping part 141 of the first clamping arm 140 applies an elastic force to the second cavity plate 414; in the vertical direction, the third cavity plate 415 and the second clamping arm 150 are arranged vertically, and the second elastic clamping part 151 of the second clamping arm 150 applies an elastic force to the third cavity plate 415; that is, the first elastic clamping part 141 and the second elastic clamping part 151 respectively apply opposing forces to the holding section 412, so that the holding structure 100 can stably hold the holding section 412, thereby allowing the wire protection device 10 to be stably installed on the cavity 410.

[0039] In a typical embodiment of this utility model, the elastic clamping part 121 is provided with a limiting part 122, the limiting part 122 protruding relative to the elastic clamping part 121, and the limiting part 122 protruding toward another elastic clamping part 121. In this embodiment, it is recommended that the limiting part 122 be an elastic protrusion structure, but this should not be construed as a limitation of this utility model.

[0040] The second cavity plate 414 has a limiting hole (referred to as the first limiting hole 4141), and the limiting part (referred to as the first limiting part 142) on the first elastic clamping part 141 is inserted into the first limiting hole 4141; the third cavity plate 415 has a limiting hole (referred to as the second limiting hole, not shown), and the limiting part (referred to as the second limiting part 152) on the second elastic clamping part 151 is inserted into the second limiting hole; thereby, under the restriction of the first limiting part 142 and the second limiting part 152, the first clamping arm 140 and the second clamping arm 150 can stably clamp the second cavity plate 414 and the third cavity plate 415, thereby making the wire protection device 10 stably installed on the cavity 410.

[0041] In one embodiment, a sliding limiting portion 160 protrudes from the side plate 110, the sliding limiting portion 160 being located within the holding space 130 and extending along the longitudinal direction. A limiting groove 4131 is provided on the first cavity plate 413, and the sliding limiting portion 160 is inserted into the limiting groove 4131 to limit the holding structure 100 in the vertical direction, thereby further stabilizing the wire protection device 10 on the cavity 410. In this embodiment, it is recommended that the sliding limiting portion 160 be a plate-like structure, and that the shape and size of the limiting groove 4131 be the same as the shape and size of the sliding limiting portion 160.

[0042] In a typical embodiment of this utility model, the wire guard 200 is disposed at one end of the longitudinal direction of the holding structure 100, and the wire guard 200 is disposed outside the holding space 130. The wire guard 200 is connected to the side plate 110 and a pair of clamping arms 120 of the holding structure 100 respectively, so that the wire guard 200 can be stably disposed on the holding structure 100.

[0043] The cable protection section 200 is provided with a cable protection channel 210, and the first cavity plate 413 of the cavity 410 is provided with a cable groove 4132. The cable protection channel 210 and the corresponding cable groove 4132 are arranged along the same axis, and a cable hole 4133 is provided on the bottom of the cable groove 4132. A coaxial cable 500 is introduced into the cable protection channel 210, and the coaxial cable 500 extends through the cable protection channel 210 into the cable groove 4132. Then, the coaxial cable 500 is introduced into the cavity 410 through the cable hole 4133 on the bottom of the cable groove 4132, so that the coaxial cable 500 is electrically connected to the phase shifting circuit of the phase shifter 400.

[0044] In this embodiment, the wire protection portion 200 is provided with a plurality of wire protection channels 210, including a pair of first wire protection channels 220. The first wire protection channels 220 are disposed on the inner side of the side plate 110, and the pair of first wire protection channels 220 are arranged vertically. In this embodiment, it is recommended that the first wire protection channel 220 be a through hole structure penetrating the wire protection portion 200, but this should not be construed as a limitation of the present invention. In one embodiment, the sliding limiting portion 160 on the side plate 110 is disposed between the pair of first wire protection portions 200, that is, the pair of first wire protection portions 200 are respectively disposed on the upper and lower sides of the sliding limiting portion 160. In one embodiment, combined with Figure 3 The wire protection section 200 is provided with only one pair of first wire protection sections 200.

[0045] In one embodiment, since the cable guard 200 is located outside the holding space 130, it facilitates the guidance of the coaxial cable 500 that is guided out of the first cable guard channel 220 to the corresponding cable groove 4132. A guide groove 111 is provided on the inner side of the side plate 110. The guide groove 111 and the first cable guard channel 220 are arranged along the same axis to enhance the guidance of the coaxial cable 500.

[0046] In one embodiment, combined Figure 1 and Figure 4The cable protection portion 200 is provided with at least one pair of second cable protection channels 230. The first cable protection channel 220 and the second cable protection channel 230 are respectively located on both sides of the side plate 110 in the lateral direction. The first cable protection channel 220 is located closer to the first cavity plate 413 than the second cable protection channel 230. In this embodiment, each pair of second cable protection channels 230 is arranged vertically, and each pair of second cable protection channels 230 is arranged side by side with the pair of first cable protection channels 220. In this embodiment, the second cable protection channel 230 is a through-hole structure penetrating the cable protection portion 200, or the cable protection portion 200 is provided with a semi-enclosed clip, and the semi-enclosed channel in the clip constitutes the second cable protection channel 230. In this embodiment, it is recommended that the cross-section of the semi-enclosed channel be a C-shaped structure to facilitate the installation of the coaxial cable 500, but this should not be construed as a limitation of this utility model.

[0047] In a further embodiment, combined with Figure 1 The wire protection section 200 is provided with a pair of second wire protection channels 230, and the first wire protection channel 220 and the second wire protection channel 230 are respectively located on both sides of the side plate 110 in the lateral direction. In this embodiment, it is recommended that the second wire protection channel 230 be formed by a semi-enclosed channel in the clip.

[0048] In another further embodiment, combined with Figure 4 The wire protection section 200 is provided with at least two pairs of second wire protection channels 230, which are arranged side by side in sequence. In this embodiment, among the at least two pairs of second wire protection channels 230, the pair of second wire protection channels 230 located on the outermost side and away from the side plate 110 is formed by a semi-enclosed channel in the clip; the pair or more pairs of second wire protection channels 230 located between the pair of first wire protection channels 220 and the pair of outermost second wire protection channels 230 are all formed by a through hole structure penetrating the wire protection section 200.

[0049] Therefore, the cable protection section 200 is provided with multiple cable protection channels 210. When multiple coaxial cables 500 need to be introduced into the phase shifter 400, the multiple coaxial cables 500 can be well arranged by the cable protection device 10.

[0050] In one embodiment, combined Figure 2 The cable protection portion 200 is further provided with a fixing plate 240, which is fixedly connected to the side plate 110 and a pair of clamping arms 120 of the holding structure 100, so that the cable protection portion 200 can be stably mounted on the holding structure 100. The fixing plate 240 is located on the inner side of the side plate 110, and the first cable protection channel 220 passes through the side plate 110.

[0051] In a further embodiment, combined with Figure 2 The holding structure 100 is further provided with a limiting block 170, which is disposed on one end of the second clamping arm 150 near the fixing plate 240 and is connected to the fixing plate 240. The limiting block 170, the fixing plate 240, and the side plate 110 together form a clearance groove 180. When the wire protection device 10 is soldered to the cavity 410, it can avoid the solder protrusion formed at the end of the cavity 410 due to soldering through the clearance groove 180.

[0052] In one embodiment, the cable protection device 10 is integrally formed. In this embodiment, it is recommended that the cable protection device 10 be made of dielectric material, but this should not be construed as a limitation of the present invention. The cable protection device 10 made of dielectric material can avoid affecting the electrical performance of the coaxial cable 500 and the phase shifter 400, so that the coaxial cable 500 and the phase shifter 400 can work stably.

[0053] This utility model also provides a phase shifting device, combined with Figure 1 , Figure 2 , Figure 5 and Figure 6 The phase shifting device includes a phase shifter 400 and the cable protection device 10 mentioned above. The cable protection device 10 is installed at one end of the cavity 410 of the phase shifter 400 in the longitudinal direction. The coaxial cable 500 is fixed by the cable protection device 10 and the coaxial cable 500 is introduced into the cavity 410. The specific assembly method of the cable protection device 10, the phase shifter 400 and the coaxial cable 500 can be found above, and will not be repeated here for the sake of saving space.

[0054] In one embodiment, the phase shifting device is provided with two wire protection devices 10, which are respectively located at both ends of the cavity 410 in the longitudinal direction.

[0055] In summary, the holding structure of the cable protection device of this utility model can effectively hold the cavity of the phase shifter, so that the cable protection device is stably installed on the cavity, and the cable protection part of the cable protection device can effectively fix and guide the coaxial cable, so that the coaxial cable can be well introduced into the cavity.

[0056] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of this utility model that have similar functions.

[0057] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A wire protector, characterized in that The device includes a holding structure and a cable protection part. The holding structure includes a side plate and a pair of clamping arms. The pair of clamping arms are respectively disposed on both sides of the side plate in the vertical direction to form a holding space. The cable protection part is disposed on one side of the side plate in the longitudinal direction. The cable protection part is provided with a cable protection channel extending along the longitudinal direction. The cable protection channel is used to install cables.

2. The line guard device of claim 1, wherein, The end of the clamping arm away from the side plate constitutes an elastic clamping part, and the elastic clamping parts of each pair of clamping arms are opposite to each other and facing each other.

3. The line guard device of claim 2, wherein, The elastic clamping part is provided with a limiting part, which protrudes toward another elastic clamping part.

4. The line guard of claim 1, wherein The side plate is provided with a sliding limiting part, which is disposed in the holding space and extends along the longitudinal direction.

5. The line guard of claim 1, wherein, The cable protection section also includes a fixing plate, which is disposed on one side of the longitudinal direction of the holding structure. The fixing plate is connected to the side plate and the pair of clamping arms respectively.

6. The line guard of claim 1, wherein The wire protection section includes multiple wire protection channels, among which there is a pair of first wire protection channels. The pair of first wire protection channels are arranged vertically along the vertical direction and are located on the inner side of the side plate.

7. The line guard device of claim 6, wherein, The plurality of protective channels also includes at least one pair of second protective channels. Each pair of second protective channels is arranged vertically along the vertical direction. Each pair of second protective channels is arranged side by side with the pair of first protective channels. The first protective channels and the second protective channels are located on opposite sides of the side plate in the horizontal direction.

8. The line guard device of claim 7, wherein, The first wire protection channel is a through-hole structure that penetrates the wire protection part; the second wire protection channel is a through-hole structure that penetrates the wire protection part, or the wire protection part is provided with a clip with a semi-enclosed structure, and the semi-enclosed channel in the clip constitutes the second wire protection channel.

9. A phase shifting device, characterized by The device includes a phase shifter and a cable protection device as described in any one of claims 1 to 8. The phase shifter includes a cavity, the cable protection device is disposed at one end of the cavity, the holding structure of the cable protection device holds the cavity, the cavity is provided with a cable groove, the cable protection channel is provided correspondingly to the cable groove, and an external cable extends into the cavity through the cable protection channel and the cable groove in sequence.

10. The phase shifting device of claim 9, wherein, The cavity is provided with two cavity plates, which are disposed between the pair of clamping arms, and each clamping arm abuts against the adjacent cavity plate. The cavity plate is provided with a limiting hole, and the clamping arm is provided with a limiting part, which is inserted into the limiting hole.

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