Included angle type double-antenna tray device

Abstract

The utility model discloses an included angle type double-antenna tray device, which comprises a tray main body and two same antennas arranged on the tray main body at an included angle, and the two same antennas are arranged in a 1 * 1 array and are different in position and direction; and the two same antennas are respectively fixed on the tray main body through a left inclined mounting bracket and a right inclined mounting bracket. The utility model has the advantages of simple structure and convenient installation, and the included angle type double antenna layout can effectively improve the read-write blind area and improve the read-write success rate.

Description

Technical Field

[0001] The utility model relates to the technical field of RF1D, and particularly relates to an included angle type double antenna tray device. Background Technique

[0002] With the continuous development of radio frequency identification technology, the application of this technology in the field of library management has become more and more mature, and its advantages in the field of library management have become more and more obvious, especially in self-service book borrowing and returning machines. From the current market demand situation, the number of books borrowed and returned by readers at one time is increasing, while the number of books borrowed and returned by ordinary self-service book borrowing and returning machines is about 5 at a time. Due to the flat single antenna tray design, there is a certain reading blind area in the radiation space of the antenna, which affects the reading of book tags and causes missed reading, resulting in a poor experience for readers. In order to improve the efficiency of borrowing and returning books and give readers a better experience, and to meet the requirement of successfully borrowing and returning no less than 10 books at a time, the current flat single antenna tray design method needs to be optimized and improved.

[0003] In summary, it is necessary to develop a tray device that can effectively improve the reading and writing blind area and increase the reading success rate. Content of the Utility Model

[0004] The main purpose of the utility model is to develop an included angle type double antenna tray device that can effectively improve the reading blind area and increase the reading success rate in view of the current flat single antenna tray design problem.

[0005] To achieve the above purpose, the utility model provides an included angle type double antenna tray device, including: a tray main body, and two identical antennas arranged at an included angle on the tray main body. The two identical antennas are arranged in a 1×1 array, and the position directions are different; the two identical antennas are respectively fixed on the tray main body through a left inclined mounting bracket and a right inclined mounting bracket.

[0006] A further technical solution of the utility model is that the tray main body is a metal sheet metal processing part, a baffle is arranged around the tray main body, and riveting screws are arranged in the internal area. The left inclined mounting bracket and the right inclined mounting bracket are fixed on the riveting screws of the tray main body.

[0007] A further technical solution of the utility model is that the left inclined mounting bracket and the right inclined mounting bracket can be set to different inclined angles to adjust the included angle size between the two identical antennas.

[0008] A further technical solution of the utility model is that the antenna is a circularly polarized antenna, including an antenna reflector, an antenna oscillator and a feeding network. The circularly polarized antenna is a super high frequency antenna, and the materials of its antenna reflector and antenna oscillator are metal aluminum plates. The antenna reflector is square, and the antenna oscillator is circular.

[0009] A further technical solution of the present utility model is that the antenna reflector of the circularly polarized antenna is provided with press riveting screws and mounting holes; the antenna element is fixed above the antenna reflector through 1 copper pillar and 3 plastic pillars, forming a certain distance from the antenna reflector.

[0010] A further technical solution of the present utility model is that the feeding network of the circularly polarized antenna includes a feeding point, a feeding base, a feeding cable, and an SMA radio frequency connector.

[0011] A further technical solution of the present utility model is that the feeding point of the circularly polarized antenna is a copper eyelet button, which is press-connected and fixed on the antenna element.

[0012] A further technical solution of the present utility model is that the material of the feeding base of the circularly polarized antenna is copper, and it is fixed on the press riveting screws of the antenna reflector.

[0013] A further technical solution of the present utility model is that the feeding cable of the circularly polarized antenna is a coaxial cable. The inner conductor at one end of the coaxial cable is welded to the feeding point, and the outer conductor is welded to the feeding base.

[0014] A further technical solution of the present utility model is that the SMA radio frequency connector of the circularly polarized antenna is welded to the other end of the feeding cable.

[0015] The included angle type dual-antenna tray device of the present utility model has the following beneficial effects: simple structure, convenient installation, and the included angle type dual-antenna layout can effectively improve the reading and writing blind area and increase the reading and writing success rate. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0017] Figure 1 It is a schematic three-dimensional structure diagram of a preferred embodiment of the included angle type dual-antenna tray device of the present utility model.

[0018] Figure 2 It is a schematic structure diagram of the tray main body in this embodiment.

[0019] Figure 3 It is a schematic diagram of the structural positional relationship of the antenna in this embodiment.

[0020] Figure 4It is a side view of a preferred embodiment of the angle-type dual-antenna tray device of the present utility model.

[0021] Explanation of the reference numerals in the attached drawings:

[0022] 1 - Tray body; 2 - Antenna; 3 - Feeding network; 11 - Baffle; 12 - Riveting screw for the tray body; 21 - Antenna reflector; 22 - Antenna oscillator; 211 - Riveting screw for the antenna reflector; 212 - Mounting hole for the antenna reflector; 213 - Copper pillar; 214 - Plastic pillar; 31 - Feeding point; 32 - Feeding base; 33 - Feeding cable; 34 - SMA RF connector; 41 - Left inclined mounting bracket; 42 - Right inclined mounting bracket.

[0023] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the attached drawings. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0025] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly.

[0026] In addition, if there are descriptions such as "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0027] Such as Figure 1 、 Figure 2 、Figure 3 , Figure 4 As shown in Figure 4 , in an embodiment of the present utility model, an angular double - antenna tray device is provided. The device includes a tray main body 1 and two identical antennas 2 arranged on the tray main body 1. The two identical antennas 2 are arranged in a 1×1 array with different position directions. The antenna 2 is a circularly polarized antenna, which includes an antenna reflector 21, an antenna oscillator 22, and a feeding network 3, and is fixed on the tray main body 1 through a left inclined mounting bracket 41 and a right inclined mounting bracket 42 respectively.

[0028] In this embodiment, the tray main body 1 is a metal sheet metal processing part. A baffle 11 is provided around the tray main body 1, which can effectively protect the antenna from external stress damage and shield and block the radiation around the antenna, reducing misreading. A plurality of riveted screws 12 are arranged in the inner area of the tray main body 1. The left inclined mounting bracket 41 and the right inclined mounting bracket 42 are fixed on the riveted screws 12 of the tray main body 1. With such a setting, the structure is simple and the installation is convenient.

[0029] In this embodiment, the left inclined mounting bracket 41 and the right inclined mounting bracket 42 can be designed with different inclined angles to adjust the included angle a between the array antennas 2 to be in the range of 140° - 170°. This embodiment is preferably 154° - 160°, and more preferably 158°.

[0030] In this embodiment, the materials of the antenna reflector 21 and the antenna oscillator 22 of the antenna 2 are metal aluminum plates. The antenna reflector 21 is set as a square, and the antenna oscillator 22 is set as a circle.

[0031] In this embodiment, the antenna reflector 21 of the antenna 2 is provided with a press - riveted screw 211 and a mounting hole 212. The antenna oscillator 22 is fixed above the antenna reflector 21 through 1 copper pillar 213 and 3 plastic pillars 214, forming a certain distance from the antenna reflector 21. In the application of this example, the distance between the antenna reflector 21 and the antenna oscillator 22 is 13mm.

[0032] In this embodiment, the feeding network 3 of the antenna 2 includes a feeding point 31, a feeding base 32, a feeding cable 33, and an SMA radio - frequency connector 34.

[0033] In this embodiment, the feeding point 31 of the antenna 2 is a copper - material eyelet button, which is press - connected and fixed on the antenna oscillator 22.

[0034] In this embodiment, the material of the feeding base 32 of the antenna 2 is copper, and it is fixed on the press - riveted screw 211 of the antenna reflector 21.

[0035] In this embodiment, the feeder cable 33 of the antenna 2 is a coaxial cable. The inner conductor at one end of the coaxial cable is welded to the feeding point 31, and the outer conductor is welded to the feeding base 32.

[0036] In this embodiment, the SMA RF connector 34 of the antenna 2 is welded to the other end of the feeder cable 33.

[0037] The angle-type dual-antenna tray device of the present utility model has the following beneficial effects: simple structure, convenient installation, and the angle-type dual-antenna layout can effectively improve the reading and writing blind area and increase the reading and writing success rate.

[0038] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present utility model.

Claims

1. An angled dual antenna tray device, characterized in that: include: A tray body, two identical antennas arranged at an angle on the tray body, the two identical antennas are arranged in a 1×1 array with different positions and directions; the two identical antennas are respectively fixed to the tray body through a left inclined mounting bracket and a right inclined mounting bracket.

2. The angled dual antenna tray device according to claim 1, characterized in that: The pallet body is a sheet metal part, the periphery of the pallet body is provided with a rib, the inner area is provided with a riveting screw, and the left inclined mounting bracket and the right inclined mounting bracket are fixed on the riveting screws of the pallet body.

3. The angled dual antenna tray device according to claim 1, characterized in that: The antenna is a circularly polarized antenna, including an antenna reflector, an antenna vibrator and a feeding network. The circularly polarized antenna is an ultra-high frequency antenna, and the materials of its antenna reflector and antenna vibrator are metal aluminum plates. The antenna reflector is square, and the antenna vibrator is circular.

4. The angled dual antenna tray device according to claim 3, characterized in that: The antenna reflector of the circular polarization antenna is provided with rivet screws and mounting holes; the antenna vibrator is fixed on the top of the antenna reflector through a copper support and three plastic supports, forming a certain distance between the antenna reflector and the antenna reflector.

5. The angled dual antenna tray device according to claim 3, characterized in that: The feeding network of the circular polarization antenna includes a feeding point, a feeding base, a feeding cable and an SMA radio frequency connector.

6. The angled dual antenna tray device according to claim 5, characterized in that: The feeding point of the circularly polarized antenna is a copper eyelet, which is crimped and fixed on the antenna element.

7. The angled dual antenna tray device according to claim 5, characterized in that: The feeding base material of the circular polarization antenna is copper and is fixed on the rivet screws of the antenna reflection plate.

8. The angled dual antenna tray device according to claim 5, characterized in that: The feeding cable of the circularly polarized antenna is a coaxial cable, the inner conductor at one end of the coaxial cable is welded to the feeding point, and the outer conductor is welded to the feeding base.

9. The angled dual antenna tray device according to claim 5, characterized in that: The SMA radio frequency connector of the circularly polarized antenna is welded on the other end of the feeding cable.

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