Vehicle-mounted multimedia advertisement panel LTE (Long Term Evolution) antenna

Abstract

The utility model relates to the technical field of vehicle-mounted accessories, and discloses a vehicle-mounted multimedia advertisement panel LTE antenna, which comprises a panel machine body, a rear shell, a radio frequency mainboard and an antenna main body, the rear shell is fixedly arranged on the back side of the panel machine body, the radio frequency mainboard is fixedly arranged inside the panel machine body, and the antenna main body is fixedly arranged on the rear shell. The antenna main body is fixedly adhered to the interior of the rear shell through an adhesive layer, a feed contact is arranged on the antenna main body, an RF elastic pin is arranged on the RF mainboard, the feed contact is in contact with the RF elastic pin, one end of the inner side of the antenna main body is provided with a bent branch knot part, the other end of the inner side of the antenna main body is provided with a straight branch knot part, and the straight branch knot part is in contact with the bent branch knot part. According to the utility model, after the back shell is detached and taken out from the back side of the panel machine body, the feed contact of the antenna main body can be separated from the connecting contact piece of the radio frequency main board, so that the antenna is convenient to assemble and disassemble, the low-frequency bandwidth of the antenna is effectively expanded by utilizing the bent branch knot part and the straight branch knot part, and the limitation of accommodating space is favorably eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted accessories, and more specifically, to a vehicle-mounted multimedia advertising flat-panel LTE antenna. Background Art

[0002] With the rapid development of intelligent and connected vehicles, in-vehicle communication technology has become the key to enabling information exchange between vehicles and the outside world. 4G communication technology, as one of the current mainstream mobile communication technologies, provides strong support for in-vehicle entertainment systems, Internet of Vehicles services, and emergency calls with its high-speed data transmission capabilities. Therefore, as a key component for receiving and transmitting 4G signals, the importance of in-vehicle multimedia advertising flat-panel LTE antennas is becoming increasingly prominent.

[0003] During the use of existing in-vehicle multimedia advertising flat-panel LTE antennas, due to the limited antenna accommodation space, the antenna's low-frequency bandwidth is relatively narrow, resulting in poor antenna radiation characteristics, affecting the use effect of the in-vehicle multimedia advertising flat-panel LTE antenna. Based on this, the utility model designs an in-vehicle multimedia advertising flat-panel LTE antenna to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to provide a vehicle-mounted multimedia advertising flat-panel LTE antenna to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A vehicle-mounted multimedia advertising flat-panel LTE antenna includes a flat panel body, a back cover, a radio frequency mainboard, and an antenna body. The back cover is fixedly mounted on the back side of the flat panel body, the radio frequency mainboard is fixedly mounted inside the flat panel body, and the antenna body is fixedly bonded to the inside of the back cover via an adhesive layer. A feeding contact is provided on the antenna body, and a connecting contact is provided at the RF end of the radio frequency mainboard. The feeding contact contacts the connecting contact. A bent branch portion is provided at one inner end of the antenna body, and a straight branch portion is provided at the other inner end of the antenna body.

[0007] As a preferred technical solution of the present invention, the cross-sectional shape of the bent branch portion is a hook shape, and the cross-sectional shape of the straight branch portion is a rectangle.

[0008] As a preferred technical solution of the present invention, the thickness of the antenna body is 0.12mm-0.14mm.

[0009] As a preferred technical solution of the present invention, the adhesive layer is a component made of epoxy resin.

[0010] By configuring in this way, the adhesive layer has good bonding performance, thereby ensuring a stable bonding effect of the antenna body in the rear shell.

[0011] As a preferred technical solution of the present invention, a mounting bracket is provided on the back side of the rear shell, and a plurality of positioning holes are opened on the side of the mounting bracket.

[0012] As a preferred technical solution of the present invention, the number of the positioning holes is six, and the positioning holes are evenly distributed.

[0013] By such an arrangement, the purpose of facilitating the stable positioning and installation of the mounting bracket is achieved.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model fixes the RF mainboard to the inside of the tablet body, and the antenna main body is fixedly bonded to the inside of the rear shell by an adhesive layer. A feeding contact is provided on the antenna main body, and a connecting contact is provided at the RF end of the RF mainboard. The feeding contact contacts the connecting contact. If the rear shell is removed from the back side of the tablet body, the feeding contact of the antenna main body can be separated from the connecting contact of the RF mainboard, thereby facilitating assembly and disassembly. A bent branch portion is provided at one end of the inner side of the antenna main body, and a straight branch portion is provided at the other end of the inner side of the antenna main body. The bent branch portion and the straight branch portion are utilized to effectively amplify the low-frequency bandwidth of the antenna, and are conducive to getting rid of the accommodation space limitation, thereby improving the radiation characteristics of the antenna and ensuring the use effect of the vehicle-mounted multimedia advertising tablet LTE antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic cross-sectional view of a flat-panel LTE antenna for vehicle-mounted multimedia advertising in the present invention;

[0017] Figure 2 This is a front view structural diagram of the antenna body in a vehicle-mounted multimedia advertising flat-panel LTE antenna of the present utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of a vehicle-mounted multimedia advertising flat-panel LTE antenna of the present utility model.

[0019] In the figure: 1. Flat body; 2. Back shell; 201. Adhesive layer; 202. Mounting bracket; 203. Positioning hole; 3. RF main board; 301. Connecting contact; 4. Antenna body; 401. Feed contact; 5. Bent branch portion; 6. Straight branch portion. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figures 1 to 3 As shown, the utility model provides a vehicle-mounted multimedia advertising flat LTE antenna, including a flat body 1, a rear shell 2, a radio frequency main board 3 and an antenna body 4. The rear shell 2 is fixedly mounted on the back side of the flat body 1, the radio frequency main board 3 is fixedly mounted inside the flat body 1, and the antenna body 4 is fixedly bonded to the inside of the rear shell 2 through an adhesive layer 201. A feeding contact 401 is provided on the antenna body 4, and a connecting contact 301 is provided at the RF end of the radio frequency main board 3. The feeding contact 401 contacts the connecting contact 301. If the rear shell 2 is fixed on the flat body 1 is disassembled and removed from the back side, the feeding contact 401 of the antenna body 4 can be separated from the connecting contact 301 of the RF main board 3, thereby facilitating assembly and disassembly. A bent branch portion 5 is provided at one end of the inner side of the antenna body 4, and a straight branch portion 6 is provided at the other end of the inner side of the antenna body 4. The cross-sectional shape of the bent branch portion 5 is a hook shape, and the cross-sectional shape of the straight branch portion 6 is a rectangle. The bent branch portion 5 and the straight branch portion 6 are used to effectively expand the low-frequency bandwidth of the antenna, and are conducive to getting rid of the accommodation space limitation, thereby improving the radiation characteristics of the antenna.

[0022] Among them, Figure 2 As shown, the thickness of the antenna body 4 is 0.12 mm to 0.14 mm.

[0023] Among them, Figure 1 As shown, the adhesive layer 201 is a component made of epoxy resin, so that the adhesive layer 201 has good bonding performance, thereby ensuring the stable bonding effect of the antenna body 4 in the rear shell 2.

[0024] Among them, Figure 3 As shown, a mounting bracket 202 is provided on the back side of the rear housing 2, and a plurality of positioning holes 203 are provided on the side of the mounting bracket 202. There are six positioning holes 203, which are evenly distributed, so as to facilitate the stable positioning and installation of the mounting bracket 202.

[0025] The working principle of this utility model:

[0026] By fixing the RF mainboard 3 to the inside of the tablet body 1, the antenna main body 4 is fixedly bonded to the inside of the rear shell 2 through the adhesive layer 201. A feeding contact 401 is provided on the antenna main body 4, and a connecting contact 301 is provided at the RF end of the RF mainboard 3. The feeding contact 401 contacts the connecting contact 301. If the rear shell 2 is removed from the back side of the tablet body 1, the feeding contact 401 of the antenna main body 4 can be separated from the connecting contact 301 of the RF mainboard 3, thereby facilitating assembly and disassembly. A bent branch portion 5 is provided at one end of the inner side of the antenna main body 4, and a straight branch portion 6 is provided at the other end of the inner side of the antenna main body 4. The bent branch portion 5 and the straight branch portion 6 are used to effectively expand the low-frequency bandwidth of the antenna, and are conducive to breaking through the space limitation, thereby improving the radiation characteristics of the antenna.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flat-panel LTE antenna for in-vehicle multimedia advertising, characterized by: It includes a tablet body (1), a rear shell (2), a radio frequency main board (3) and an antenna body (4); The rear shell (2) is fixedly mounted on the back side of the tablet body (1), the radio frequency mainboard (3) is fixedly mounted inside the tablet body (1), and the antenna body (4) is fixedly bonded to the inside of the rear shell (2) via an adhesive layer (201); A feeding contact (401) is provided on the antenna body (4), a connecting contact piece (301) is provided at the RF end of the radio frequency mainboard (3), the feeding contact (401) is in contact with the connecting contact piece (301), a bent branch portion (5) is provided at one inner end of the antenna body (4), and a straight branch portion (6) is provided at the other inner end of the antenna body (4).

2. The vehicle-mounted multimedia advertising flat-panel LTE antenna according to claim 1, characterized in that: The cross-sectional shape of the bent branch section (5) is a hook shape, and the cross-sectional shape of the straight branch section (6) is a rectangle.

3. The vehicle-mounted multimedia advertising flat-panel LTE antenna according to claim 1, characterized in that: The thickness of the antenna body (4) is 0.12 mm to 0.14 mm.

4. The vehicle-mounted multimedia advertising flat-panel LTE antenna according to claim 1, characterized in that: The adhesive layer (201) is a component made of epoxy resin.

5. The vehicle-mounted multimedia advertising flat-panel LTE antenna according to claim 1, characterized in that: A mounting bracket (202) is provided on the back side of the rear shell (2), and a plurality of positioning holes (203) are provided on the side of the mounting bracket (202).

6. The vehicle-mounted multimedia advertising flat-panel LTE antenna according to claim 5, characterized in that: The number of the positioning holes (203) is six, and the positioning holes (203) are evenly distributed.

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