Radiator and antenna unit

Abstract

The utility model provides a radiator and an antenna unit, and the radiator comprises a balun which is accommodated in a positioning gap of a fixed plate; a radiation arm; the first clamping part is fixed on the peripheral side of the balun; the first clamping part is fixed on the periphery of the balun, the second clamping part is fixed on the periphery of the balun, a plurality of clamping table tops are arranged on the surface of one side, close to the first clamping part, of the second clamping part, the clamping table tops are continuously distributed in the circumferential direction of the balun, and the distances between the clamping table tops and the surface of one side, close to the second clamping part, of the first clamping part are different. The fixing plates with different thicknesses can be clamped and fixed between the different clamping table tops and the first clamping part, so that the fixing plates with different thicknesses can be mounted on the radiators with the same specification, the number of required radiators can be reduced, the material cost is reduced, and confusion during mounting and dullness of materials can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and in particular to a radiator and an antenna unit. Background Art

[0002] With the development of mobile communications, the size requirements of antennas on communication base stations are getting smaller and smaller, the spatial layout requirements are getting more and more compact, and the versatility requirements of module components are getting higher and higher.

[0003] In the related art, the antenna unit has radiators of different specifications and fixing plates of different thicknesses. The radiators of different specifications need to be installed on fixing plates of corresponding thicknesses. However, since the number of fixing plates of different thicknesses needs to match radiators of different specifications, a large number of radiators is required, resulting in high material costs. Moreover, it is easy to get confused during installation, resulting in material stagnation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a radiator and an antenna unit, aiming to solve the problems in the related art of high material cost of assembling the antenna unit and easy confusion during installation.

[0005] In order to solve the above technical problems, the first aspect of the present invention provides a radiator, comprising:

[0006] A balun is used to be accommodated in a positioning notch of the fixing plate;

[0007] A radiation arm, fixed to the top of the balun;

[0008] A first clamping portion is fixed to the peripheral side of the balun; and

[0009] A second clamping portion is fixed to the circumferential side of the balun, the first clamping portion and the second clamping portion are both located at the bottom end of the balun and are staggered along the length direction of the balun, a side surface of the second clamping portion close to the first clamping portion is provided with a plurality of clamping tables, the plurality of clamping tables are continuously distributed along the circumference of the balun, and the distances between the plurality of clamping tables and the side surface of the first clamping portion close to the second clamping portion are different;

[0010] Wherein, when the balun is accommodated in the positioning notch of the fixing plate and the balun is rotated until the fixing plate is located between the first clamping part and the second clamping part, two sides of the fixing plate respectively abut against a side surface of the first clamping part close to the second clamping part and one of the clamping table surfaces.

[0011] Optionally, along the circumferential direction of the balun, the distance between the plurality of clamping surfaces and a side surface of the first clamping portion close to the second clamping portion gradually increases or decreases.

[0012] Optionally, a plurality of the second clamping portions are provided, and the plurality of the second clamping portions are distributed at intervals along the circumference of the balun.

[0013] Optionally, a plurality of the first clamping portions are provided, and the plurality of the first clamping portions are spaced apart along the circumference of the balun, and any first clamping portion is located between two adjacent second clamping portions.

[0014] Optionally, the second clamping portion of the first clamping portion and the second clamping portion is closer to the bottom end of the balun, and in the radial direction along the balun, the protrusion height of the first clamping portion is greater than the protrusion height of the second clamping portion.

[0015] Optionally, the radiator also includes a positioning portion elastically connected to the circumferential side of the balun, the positioning portion and the second clamping portion are staggered along the length direction of the balun, the fixing plate is provided with a positioning hole, and the positioning portion is used to be embedded in the positioning hole when the balun is rotated to the fixing plate being located between the first clamping portion and the second clamping portion.

[0016] Optionally, the radiator further includes a connecting arm fixed to a peripheral side of the balun, the connecting arm and the second clamping portion are staggered along a length direction of the balun, and the positioning portion is fixed to an end of the connecting arm away from the balun.

[0017] Optionally, the connecting arm and the first clamping portion are in the same plane.

[0018] Optionally, a mounting portion is provided at one end of the radiation arm away from the balun, and the mounting portion is provided with a mounting groove for mounting a radiation sheet.

[0019] A second aspect of the utility model provides an antenna unit, comprising a fixing plate and a radiator as described above, wherein the fixing plate is provided with a positioning notch, and the radiator is fixed in the positioning notch.

[0020] Compared with the related art, a radiator and antenna unit in the utility model has the beneficial effect that: when the balun is accommodated in the positioning notch of the fixing plate and the balun is rotated to the point where the fixing plate is located between the first clamping portion and the second clamping portion, the two sides of the fixing plate respectively abut against a side surface of the first clamping portion close to the second clamping portion and a clamping table, thereby clamping and fixing the radiator on the fixing plate; and, since a side surface of the second clamping portion close to the first clamping portion is provided with a plurality of clamping tables, the plurality of clamping tables are continuously distributed along the circumference of the balun, and the distances between the plurality of clamping tables and a side surface of the first clamping portion close to the second clamping portion are different, fixing plates of different thicknesses can be clamped and fixed between different clamping tables and the first clamping portion, thereby fixing plates of different thicknesses can be installed on radiators of the same specification, which can reduce the number of radiators required, thereby reducing material costs, and can avoid confusion during installation and avoid material stagnation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of assembling a radiator and a thickness fixing plate in an antenna unit provided by an embodiment of the utility model;

[0023] Figure 2 It is a schematic diagram of assembling a radiator and another thickness fixing plate in an antenna unit provided by an embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the structure of the radiator provided by the embodiment of the utility model;

[0025] Figure 4 yes Figure 3 Enlarged view of detail A.

[0026] In the accompanying drawings, the various reference numerals represent: 1, balun; 2, radiating arm; 3, first clamping portion; 4, second clamping portion; 41, clamping table; 5, connecting arm; 6, positioning portion; 7, mounting portion; 71, mounting groove; 10, radiator; 20, fixing plate; 201, positioning notch; 2011, mounting hole; 2012, clearance hole; 202, positioning hole. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" and "several" is two or more, unless otherwise clearly and specifically defined.

[0030] Example:

[0031] See also Figure 1 and Figure 2 The embodiment of the utility model provides an antenna unit, including a fixing plate 20 and a radiator 10 . The fixing plate 20 is provided with a positioning notch 201 , and the radiator 10 is fixed in the positioning notch 201 .

[0032] See also Figures 1 to 4The radiator 10 includes a balun 1, a radiation arm 2, a first clamping portion 3 and a second clamping portion 4. The balun 1 is used to be accommodated in a positioning notch 201 of a fixing plate 20; the radiation arm 2 is fixed to the top of the balun 1; the first clamping portion 3 is fixed to the circumference of the balun 1; the second clamping portion 4 is fixed to the circumference of the balun 1, the first clamping portion 3 and the second clamping portion 4 are both located at the bottom of the balun 1 and are staggered along the length direction of the balun 1. A plurality of clamping tables 41 are provided on a side surface of the second clamping portion 4 close to the first clamping portion 3. The plurality of clamping tables 41 are continuously distributed along the circumference of the balun 1, and the distances between the plurality of clamping tables 41 and a side surface of the first clamping portion 3 close to the second clamping portion 4 are different.

[0033] When the balun 1 is accommodated in the positioning notch 201 of the fixing plate 20 and the balun 1 is rotated until the fixing plate 20 is located between the first clamping portion 3 and the second clamping portion 4, the two sides of the fixing plate 20 respectively abut against a side surface of the first clamping portion 3 close to the second clamping portion 4 and a clamping table 41, thereby clamping and fixing the radiator 10 on the fixing plate 20; and, since a side surface of the second clamping portion 4 close to the first clamping portion 3 is provided with a plurality of clamping tables 41, the plurality of clamping tables 41 are continuously distributed along the circumference of the balun 1, and the distances between the plurality of clamping tables 41 and a side surface of the first clamping portion 3 close to the second clamping portion 4 are different, the fixing plates 20 of different thicknesses can be clamped and fixed between different clamping tables 41 and the first clamping portion 3, so that the fixing plates 20 of different thicknesses can be installed on the radiator 10 of the same specification, which can reduce the number of radiators 10 required, thereby reducing material costs, and can also avoid confusion during installation and avoid material stagnation.

[0034] It should be noted that the positioning notch 201 is matched with one of the first clamping portion 3 and the second clamping portion 4. For example, the positioning notch 201 is matched with the second clamping portion 4. When the balun 1 is accommodated in the positioning notch 201, the second clamping portion 4 passes through the fixing plate 20 through the positioning notch 201, so that the first clamping portion 3 and the second clamping portion 4 are respectively on both sides of the fixing plate 20, ensuring that the first clamping portion 3 and the second clamping portion 4 clamp the fixing plate 20. Moreover, when the balun 1 rotates to a preset angle, the second clamping portion 4 is staggered with the positioning notch 201, and the second clamping portion 4 rotates with the fixing plate 20 to abut against the corresponding clamping table 41.

[0035] See also Figure 3 and Figure 4, along the circumferential direction of the balun 1, the distance between the multiple clamping tables 41 and the side surface of the first clamping part 3 close to the second clamping part 4 gradually increases or decreases, so that the multiple clamping tables 41 form a step structure on the surface of the second clamping part 4. In a specific example, the second clamping part 4 is provided with three clamping tables 41, and the distance between the three clamping tables 41 and the side surface of the first clamping part 3 close to the second clamping part 4 gradually increases to adapt to three different thicknesses of the fixing plates 20. For example, the thicknesses of the three fixing plates 20 are 1.5mm, 2.0mm, and 2.5mm, respectively. Then, along the circumferential direction of the balun 1, the distances between the three clamping tables 41 and the side surface of the first clamping part 3 close to the second clamping part 4 are 1.5mm, 2.0mm, and 2.5mm, so that for the three different thicknesses of the fixing plates 20, the radiator 10 of the same specification can be used, and the material types are few, which can avoid the wrong material selection.

[0036] It should be understood that for the fixing plate 20 with a thickness of 1.5 mm, when the radiator 10 is rotated to the point where the distance between the fixing plate 20 and the side surface of the first clamping portion 3 close to the second clamping portion 4 is 1.5 mm, the two sides of the fixing plate 20 respectively abut against the side surface of the first clamping portion 3 close to the second clamping portion 4 and a clamping table 41, thereby achieving clamping and fixing of the fixing plate 20 and the radiator 10.

[0037] See also Figure 3 There are multiple second clamping parts 4, and the multiple second clamping parts 4 are spaced apart along the circumference of the balun 1. The multiple second clamping parts 4 can improve the clamping firmness between the fixing plate 20 and the radiator 10. There can be four second clamping parts 4, and the four clamping parts are spaced apart at equal angles along the circumference of the balun 1. According to actual needs, there can also be two, three, five, etc. second clamping parts 4.

[0038] See also Figure 3 , there are multiple first clamping parts 3, and the multiple first clamping parts 3 are spaced apart along the circumference of the balun 1, and any first clamping part 3 is located between two adjacent second clamping parts 4, which can further improve the clamping firmness between the fixing plate 20 and the radiator 10. Among them, there can be two first clamping parts 3, and the two first clamping parts 3 are symmetrically arranged. According to actual needs, there can also be three, four, five, etc. first clamping parts 3.

[0039] See also Figure 1 and Figure 2In some embodiments, the projection of the first clamping portion 3 along the length direction of the balun 1 falls on the plate surface of the fixed plate 20, and the projection of the second clamping portion 4 along the length direction of the balun 1 falls into the positioning notch 201 of the fixed plate 20, that is, the positioning notch 201 is adapted to the second clamping portion 4, so that when the balun 1 is accommodated in the positioning notch 201, the first clamping portion 3 and the second clamping portion 4 can be respectively on both sides of the fixed plate 20.

[0040] See also Figure 3 The second clamping portion 4 of the first clamping portion 3 and the second clamping portion 4 is closer to the bottom end of the balun 1, and in the radial direction along the balun 1, the protruding height of the first clamping portion 3 is greater than the protruding height of the second clamping portion 4, which is beneficial to ensure that the first clamping portion 3 abuts against the plate surface of the fixed plate 20 when the second clamping portion 4 enters the positioning notch 201, so that the first clamping portion 3 and the second clamping portion 4 are respectively on both sides of the fixed plate 20.

[0041] See also Figure 1 , Figure 2 and Figure 3 The radiator 10 further includes a positioning portion 6 elastically connected to the circumferential side of the balun 1. The positioning portion 6 and the second clamping portion 4 are staggered along the length direction of the balun 1. The fixing plate 20 is provided with a positioning hole 202. The positioning portion 6 is used to be embedded in the positioning hole 202 when the balun 1 is rotated to the fixing plate 20 between the first clamping portion 3 and the second clamping portion 4. The positioning portion 6 cooperates with the positioning hole 202 to prevent the radiator 10 from rotating relative to the fixing plate 20, thereby preventing the radiator 10 from rotating relative to the fixing plate 20 after the first clamping portion 3 and the second clamping portion 4 clamp the fixing plate 20. According to actual needs, two positioning portions 6 can be provided, and any one positioning portion 6 is located between the two first clamping portions 3. Two positioning holes 202 are provided on the fixing plate 20, and the two positioning portions 6 are respectively embedded in the two positioning holes 202.

[0042] It should be noted that for fixing plates 20 of different thicknesses, the positioning holes 202 are arranged at different positions relative to the positioning notches 201 on the fixing plates 20 , ensuring that the positioning portion 6 is exactly embedded in the positioning holes 202 when the fixing plates 20 are rotated to the corresponding clamping table 41 .

[0043] See also Figure 1 and Figure 2In some embodiments, the positioning notch 201 includes a mounting hole 2011 and a clearance hole 2012 connected to the mounting hole 2011, and the clearance hole 2012 is arranged around the mounting hole 2011; the mounting hole 2011 is adapted to the balun 1, and the clearance hole 2012 is adapted to the second clamping portion 4. In the circumferential direction, the spacing angles between the positioning holes 202 and the clearance holes 2012 of the fixing plates 20 of different thicknesses are set differently, for example: for a fixing plate 20 with a thickness of 1.5 mm, the spacing angle between the positioning hole 202 and the clearance hole 2012 is 10°, for a fixing plate 20 with a thickness of 2.0 mm, the spacing angle between the positioning hole 202 and the clearance hole 2012 is 20°, and for a fixing plate 20 with a thickness of 2.5 mm, the spacing angle between the positioning hole 202 and the clearance hole 2012 is 30°.

[0044] See also Figure 3 , the radiator 10 further includes a connecting arm 5 fixed to the peripheral side of the balun 1, the connecting arm 5 and the second clamping portion 4 are staggered along the length direction of the balun 1, the positioning portion 6 is fixed to the end of the connecting arm 5 away from the balun 1, and the positioning portion 6 is elastically connected to the balun 1 through the connecting arm 5, so that when the radiator 10 rotates, the positioning portion 6 abuts against the surface of the fixed plate 20, and when the first clamping portion 3 and the second clamping portion 4 clamp the fixed plate 20, the positioning portion 6 is embedded in the positioning hole 202. According to actual needs, the connecting arm 5 has a certain elasticity to ensure that the positioning portion 6 can move up and down relative to the fixed plate 20; the connecting arm 5 and the first clamping portion 3 are in the same plane, so that when the first clamping portion 3 abuts against the surface of the fixed plate 20, the positioning portion 6 also abuts against the surface of the fixed plate 20, ensuring that the positioning portion 6 can be embedded in the positioning hole 202.

[0045] It should be noted that the positioning part 6 and the connecting arm 5 together constitute a positioning component. Two positioning components can be provided, and any positioning component is located between the two first clamping parts 3; the first clamping part 3, the second clamping part 4, the connecting arm 5, the positioning part 6 and the balun 1 can be arranged in one piece or separately.

[0046] See also Figure 3 The end of the radiation arm 2 away from the balun 1 is provided with a mounting portion 7, and the mounting portion 7 is provided with a mounting groove 71 for mounting the radiation sheet, wherein the mounting portion 7 clamps the radiation sheet and fixes it in the mounting groove 71. There are multiple mounting portions 7, and the multiple mounting portions 7 are distributed at intervals along the circumference of the balun 1. For example, there are four mounting portions 7, and the four mounting portions 7 are distributed at equal angles along the circumference.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A radiator, characterized in that: include: A balun is used to be accommodated in a positioning notch of the fixing plate; A radiation arm, fixed to the top of the balun; A first clamping portion is fixed to the peripheral side of the balun; and A second clamping portion is fixed to the circumferential side of the balun, the first clamping portion and the second clamping portion are both located at the bottom end of the balun and are staggered along the length direction of the balun, a side surface of the second clamping portion close to the first clamping portion is provided with a plurality of clamping tables, the plurality of clamping tables are continuously distributed along the circumference of the balun, and the distances between the plurality of clamping tables and the side surface of the first clamping portion close to the second clamping portion are different; Wherein, when the balun is accommodated in the positioning notch of the fixing plate and the balun is rotated until the fixing plate is located between the first clamping portion and the second clamping portion, two sides of the fixing plate respectively abut against a side surface of the first clamping portion close to the second clamping portion and one of the clamping table surfaces.

2. The radiator according to claim 1, characterized in that In the circumferential direction of the balun, the distance between the plurality of clamping surfaces and a side surface of the first clamping portion close to the second clamping portion gradually increases or decreases.

3. The radiator according to claim 1, characterized in that A plurality of the second clamping portions are provided, and the plurality of the second clamping portions are spaced apart and distributed along the circumference of the balun.

4. The radiator according to claim 3, characterized in that There are multiple first clamping parts, and the multiple first clamping parts are distributed at intervals along the circumference of the balun, and any first clamping part is located between two adjacent second clamping parts.

5. The radiator according to claim 1, characterized in that The second clamping portion of the first clamping portion is closer to the bottom end of the balun, and in the radial direction along the balun, the protrusion height of the first clamping portion is greater than the protrusion height of the second clamping portion.

6. The radiator according to claim 1, characterized in that The radiator also includes a positioning portion elastically connected to the circumferential side of the balun, the positioning portion and the second clamping portion are staggered along the length direction of the balun, the fixing plate is provided with a positioning hole, and the positioning portion is used to be embedded in the positioning hole when the balun is rotated until the fixing plate is located between the first clamping portion and the second clamping portion.

7. The radiator according to claim 6, characterized in that The radiator further comprises a connecting arm fixed to the peripheral side of the balun, the connecting arm and the second clamping portion are staggered and distributed along the length direction of the balun, and the positioning portion is fixed to an end of the connecting arm away from the balun.

8. The radiator according to claim 7, characterized in that The connecting arm and the first clamping portion are located in the same plane.

9. The radiator according to claim 1, characterized in that A mounting portion is provided at one end of the radiation arm away from the balun, and the mounting portion is provided with a mounting groove for mounting the radiation sheet.

10. An antenna unit, characterized in that: It comprises a fixing plate and a radiator as claimed in any one of claims 1 to 9, wherein the fixing plate is provided with a positioning notch, and the radiator is fixed in the positioning notch.

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