Antenna devices and vehicles

Abstract

This invention provides an antenna device and a vehicle. The antenna device includes a housing, a circuit board fixedly connected to the housing, and a radiating structure connected to the circuit board and the housing. Both the circuit board and the radiating structure are housed within a receiving space of the housing. The radiating structure includes a first leg and a second leg, the first leg being fixedly connected to the circuit board and the second leg being fixedly connected to the housing. This invention not only simplifies the antenna device assembly process but also effectively reduces the production cost of the antenna device.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to an antenna device and a vehicle. Background Technology

[0002] With societal development, antenna technology has matured. Box antennas mostly employ a structure of plastic brackets and stamped metal parts, which are then mounted onto a printed circuit board. This requires numerous hot-melt solder joints, making the process complex. Furthermore, different plastic bracket molds are needed for different antenna shapes, resulting in higher costs. Alternatively, if only stamped metal parts are soldered onto a printed circuit board, a larger printed circuit board area is typically required to support the metal parts, and the number of solder joints is still considerable. While this method is cheaper, the process remains complex.

[0003] In view of this, it is indeed necessary to propose a new type of antenna device and a vehicle that uses such an antenna device. Summary of the Invention

[0004] The purpose of this invention is to provide an antenna device and vehicle to solve the problems of complex antenna device assembly process and high production cost.

[0005] To solve the above-mentioned technical problems, the present invention provides an antenna device, the antenna device including a housing, a circuit board fixedly connected to the housing, and a radiating structure connected to the circuit board and the housing; the circuit board and the radiating structure are both housed within the housing space of the housing, the radiating structure including a first leg and a second leg, the first leg being fixedly connected to the circuit board, and the second leg being fixedly connected to the housing.

[0006] As a further improvement of the present invention, the antenna device further includes a sealing element, and a groove is provided on the wall surface of the housing near the radiating structure. The groove surrounds the radiating structure, and the sealing element is housed in the groove and fixedly connected to the radiating structure.

[0007] As a further improvement of the present invention, the radiation structure further includes a radiation body fixedly connected to the first support and the second support, the first support and the second support being respectively disposed on the side of the radiation body; the bottom end of the first support is lower than the horizontal height of the radiation body, and the bottom end of the first support is fixedly connected to the circuit board.

[0008] As a further improvement of the present invention, the first support and the second support are arranged opposite to each other, the bottom end of the second support is lower than the horizontal height of the radiating body, and the bottom end of the second support is higher than the bottom end of the first support.

[0009] As a further improvement of the present invention, the housing includes a first housing and a second housing, which are connected and fixed by a connector to form a receiving space for accommodating the circuit board and the radiation structure. The first housing is provided with a fixing post, and the bottom end of the second support leg is provided with a through hole. The fixing post is inserted into the through hole to fix the first housing and the second support leg together.

[0010] As a further improvement of the present invention, the housing includes a first housing and a second housing, the first housing and the second housing are fixedly connected by a connector, the first housing is provided with a buckle part, and the bottom end of the second leg pair is provided with a fastening part, the buckle part is engaged with the fastening part to fix the first housing and the second leg.

[0011] As a further improvement of the present invention, the housing includes a first housing and a second housing, the first housing and the second housing are connected and fixed by a connector, the second housing is provided with a fixing post, and the bottom end of the second support leg is provided with a through hole, the fixing post is inserted into the through hole to fix the second housing and the second support leg.

[0012] As a further improvement of the present invention, the radiating structure includes a first radiating antenna and a second radiating antenna, which are disposed at the two side edges of the circuit board; both the first radiating antenna and the second radiating antenna include a first leg and a second leg, the first leg of the first radiating antenna and the first leg of the second radiating antenna are fixedly connected to the circuit board, and the second leg of the first radiating antenna and the second leg of the second radiating antenna are fixedly connected to the housing.

[0013] As a further improvement of the present invention, the antenna device further includes a third radiating antenna fixed on the circuit board, the third radiating antenna being located between the first radiating antenna and the second radiating antenna.

[0014] As a further improvement of the present invention, the antenna device further includes a wiring harness assembly and a shielding cover, both of which are located between the housing and the circuit board, and both the wiring harness assembly and the shielding cover are fixedly connected to the housing.

[0015] As a further improvement of the present invention, the circuit board is configured as a printed circuit board, and the first leg is fixed to the printed circuit board by hot melt welding.

[0016] Another object of the present invention is to provide a vehicle for better application of the above-described antenna device.

[0017] To solve the above-mentioned technical problems, the present invention provides a vehicle, the vehicle including the aforementioned antenna device.

[0018] This invention provides an antenna device comprising a housing, a circuit board fixedly connected to the housing, and a radiating structure connected to both the circuit board and the housing. Both the circuit board and the radiating structure are housed within a receiving space of the housing. The radiating structure includes a first leg and a second leg, the first leg being fixedly connected to the circuit board and the second leg being fixedly connected to the housing. This invention not only simplifies the antenna device assembly process but also effectively reduces the production cost of the antenna device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the antenna device of the present invention.

[0020] Figure 2 This is an exploded view of the antenna device of the present invention.

[0021] Figure 3 for Figure 1 A diagram showing the disassembly after removing the first shell.

[0022] Figure 4 for Figure 3 An exploded view after removing the wiring harness assembly.

[0023] Figure 5 This is an exploded view of the first shell, the first radiating antenna, and the second radiating antenna in this invention.

[0024] Figure 6 This is a schematic diagram of the structure of the first shell, the first radiating antenna, the second radiating antenna, and the circuit board assembled in this invention.

[0025] Figure 7 This is a schematic diagram of the structure of the first housing with a groove in this invention after being assembled with the first radiating antenna and the second radiating antenna.

[0026] Figure 8 This is a schematic diagram of the structure of the first radiating antenna in this invention.

[0027] The labels in the attached figures are explained as follows:

[0028] Antenna device 100; housing 10, first housing 11, fixing post 110, blind hole 111, limiting post 112, second housing 12, fixing hole 120, circuit board 20, through hole 21, limiting hole 22, radiating structure 30, first radiating antenna 31, second radiating antenna 32, first support 30A, second support 30B, radiating body 30C, through hole 30D, third radiating antenna 40, wire harness assembly 50, shielding cover 60, connector 70, first groove 80, second groove 81, adhesive backing 90. Detailed Implementation

[0029] The antenna device 100 and the vehicle using the antenna device 100 of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clarify the illustration of the embodiments of the present invention. Furthermore, the structures shown in the drawings are often part of the actual structures. In particular, different figures may have different emphases and sometimes use different scales.

[0030] The present invention provides an antenna device 100, which can be applied to vehicles, positioning devices, and devices that require signal transmission or positioning.

[0031] like Figure 1 and Figure 2 As shown, the antenna device 100 includes a housing 10, a circuit board 20 fixedly connected to the housing 10, and a radiating structure 30 connected to the circuit board 20 and the housing 10. Both the circuit board 20 and the radiating structure 30 are housed within the housing space of the housing 10. The radiating structure 30 includes a first leg 30A and a second leg 30B. The first leg 30A is fixedly connected to the circuit board 20, and the second leg 30B is fixedly connected to the housing 10. This configuration not only simplifies the assembly process of the antenna device 100 but also effectively reduces its production cost. Specifically, the first leg 30A of the radiating structure 30 is fixedly connected to the circuit board 20, and its second leg 30B is fixedly connected to the housing 10. This reduces the fixed area between the radiating structure 30 and the circuit board 20, thus reducing the area of ​​the circuit board 20 and saving on the production cost of the antenna device 100. Furthermore, it reduces the connection process between the radiating structure 30 and the circuit board 20. Furthermore, the second leg 30B of the radiating structure 30 is fixedly connected to the housing 10, providing reliable support for the overall radiating structure 30 and preventing the antenna device 100 from being affected by impacts and vibrations. This satisfies reliability requirements while effectively reducing production costs. Preferably, this antenna device 100 is used in automobiles. The antenna device 100 also includes adhesive 90 attached to the housing 10. The antenna device 100 is placed under the vehicle's central control unit, and the adhesive 90 secures it to the central control unit.

[0032] In this invention, preferably, the circuit board 20 is configured as a printed circuit board 20, the radiating structure 30 is configured as a metal sheet, and the first leg 30A of the radiating structure 30 is fixed to the printed circuit board 20 by hot-melt welding. Of course, the circuit board 20 can also be other types of circuit boards 20, such as flexible circuit boards 20, as long as it can be fixedly connected to the first leg 30A of the radiating structure 30, and no further restrictions are imposed.

[0033] Furthermore, combined Figure 3 , Figure 4 as well as Figure 5 The radiating structure 30 of the antenna device 100 includes a first radiating antenna 31 and a second radiating antenna 32, which are disposed at the two side edges of the circuit board 20. Both the first radiating antenna 31 and the second radiating antenna 32 include a first leg 30A and a second leg 30B. The first leg 30A of the first radiating antenna 31 and the first leg 30A of the second radiating antenna 32 are fixedly connected to the circuit board 20, and the second leg 30B of the first radiating antenna 31 and the second leg 30B of the second radiating antenna 32 are fixedly connected to the housing 10. Specifically, the radiating structure 30, i.e., the first radiating antenna 31 and the second radiating antenna 32, includes a radiating body 30C fixedly connected to the first leg 30A and the second leg 30B. The first leg 30A and the second leg 30B are respectively disposed beside the radiating body 30C, and the bottom end of the first leg 30A is lower than the horizontal height of the radiating body 30C, and the bottom end of the first leg 30A is fixedly connected to the circuit board 20. This configuration allows only space for soldering power to the printed circuit board 20 of the antenna device 100, eliminating the need for a separate plastic antenna bracket and reducing the area of ​​the printed circuit board 20.

[0034] Preferably, combined with Figure 6 and Figure 8As shown, the first leg 30A and the second leg 30B are arranged opposite each other. The bottom end of the second leg 30B is lower than the horizontal height of the radiating body 30C, and the bottom end of the second leg 30B is higher than the bottom end of the first leg 30A. Further, the housing 10 includes a first shell 11 and a second shell 12, which are connected and fixed by a connector 70 to form a receiving space for accommodating the circuit board 20 and the radiating structure 30. The first shell 11 is provided with a fixing post 110, and the bottom end of the second leg 30B has a through hole 30D. The fixing post 110 is inserted into the through hole 30D to fix the first shell 11 and the second leg 30B together. Specifically, the first shell 11 is shaped like a cover, and the second shell 12 has several fixing holes 120. The printed circuit board 20 also has through holes 21 corresponding to the fixing holes 120. Correspondingly, the first shell 11 has a blind hole 111 protruding towards the second shell 12 on one wall near the radiating structure 30. The connector 70 is inserted into the fixing holes 120, through holes 21 and blind holes 111 in sequence and locked to connect and fix the first shell 11, the printed circuit board 20 and the second shell 12.

[0035] The bottom end of the first leg 30A of the first radiating antenna 31 is lower than the height of the radiating body 30C, so that the bottom end of the first leg 30A is thermally welded to the printed circuit board 20. The bottom end of the second leg 30B of the first radiating antenna 31 is lower than the horizontal height of the radiating body 30C, and the bottom end of the second leg 30B is higher than the bottom end of the first leg 30A. This not only allows the bottom end of the second leg 30B to be fixedly connected to the first housing 11, but also reduces the size of the antenna device 100. Specifically, the first radiating antenna 31 in this invention has two first legs 30A, so corresponding soldering holes are opened on the printed circuit board 20. The bottom end of the first leg 30A is inserted into the soldering hole and thermally welded to fix the first leg 30A to the printed circuit board 20. The first radiating antenna 31 has a second leg 30B. A through hole 30D is formed at the bottom end of the second leg 30B. A fixing post 110 corresponding to the through hole 30D is provided on the first housing 11. The fixing post 110 protrudes towards the first radiating antenna 31. Inserting the fixing post 110 into the corresponding through hole 30D achieves a fixed connection between the first housing 11 and the second leg 30B. Of course, the number of first legs 30A and second legs 30B of the radiating structure 30 can be flexibly set according to the needs of the antenna. In this way, multiple antenna legs are fixed separately, meeting the antenna reliability requirements.

[0036] With this configuration, the first leg 30A and the second leg 30B are fixedly connected to the printed circuit board 20 and the first housing 11, respectively. This not only provides reliable support for the overall first radiating antenna 31, avoiding the impact of impacts and vibrations on it, but also reduces the size of the printed circuit board 20 and eliminates the need for a separate plastic antenna bracket. Furthermore, because the molding is done on the housing 10, the local flatness is easier to control, reducing the overall precision requirements of the housing 10. In other words, the metal antenna does not require a separate plastic bracket and mold, and the production dimensions of the housing 10 are easier to control and manufacture. This effectively reduces production costs and processes. Since the structure of the second radiating antenna 32 is basically the same, the only difference being the radiating body 30C, whose connection to the printed circuit board 20 and housing 10 is the same as that of the first radiating antenna 31, it will not be described in detail here.

[0037] Of course, there are other implementation methods. For example, the housing 10 includes a first housing 11 and a second housing 12, which are fixedly connected by a connector 70. The first housing 11 has a snap-fit ​​part, and the bottom end of the second leg 30B has a fastening part. The snap-fit ​​part engages with the fastening part to fix the first housing 11 and the second leg 30B together. Alternatively, the snap-fit ​​part can be located on the second housing 12, and the fastening part at the bottom end of the second leg 30B connects with the snap-fit ​​part on the second housing 12. The snap-fit ​​part can also be a slide rail type snap-fit. After the fastening part engages with the snap-fit ​​part, when there is significant shaking, a certain displacement can occur between the housing 10 and the second leg 30B, thereby providing a buffering effect to the radiation structure 30 and reducing damage to the radiation structure.

[0038] Combination Figure 7As shown, the antenna device 100 further includes a sealing element. A groove is provided on the wall surface of the housing 10 near the radiating structure 30, surrounding the radiating structure 10. The sealing element is housed within the groove and fixedly connected to the radiating structure 10. Specifically, corresponding first grooves 80 and 81 are provided on the wall surface of the first housing 11 near the first radiating antenna 31 and the second radiating antenna 32, respectively surrounding the first radiating antenna 31 and the second radiating antenna 32. The sealing element is preferably a sealing adhesive. Sealing adhesive is poured into the first groove 80 and the second groove 81 to house them and fix them to the first radiating antenna 31 and the second radiating antenna 32. This arrangement not only makes the first radiating antenna 31 and the second radiating antenna 32 more stable, preventing vehicle shaking or collisions from affecting the radiation performance of the radiating structure, but also reduces the amount of sealing adhesive used, thereby lowering production costs. After the printed circuit board 20 is fixedly connected to the first radiating antenna 31 and the second radiating antenna 32, a small component can be formed. Then, the component is fixedly connected to the radiating structure 30 and the first shell 11 through the second support 30B. In order to further stabilize the radiating structure 30, glue is poured into the groove to make it more stable.

[0039] Of course, there is another implementation, such as the housing 10 including a first housing 11 and a second housing 12, the first housing 11 and the second housing 12 being connected and fixed by a connector 70. The second housing 12 is provided with a fixing post 110, and the bottom end of the second support 30B is provided with a through hole 30D. The fixing post 110 is inserted into the through hole 30D to fix the second housing 12 and the second support 30B. That is to say, the second housing 12 is provided with a fixing post 110 corresponding to the through hole 30D, so that the same effect as described above can be achieved. Therefore, the position of the fixing post 110 on the housing 10 is not limited, as long as the second support 30B on the radiation structure 30 can be fixedly connected to the fixing post 110 on the housing 10, and no further restrictions are imposed.

[0040] In this invention, the height of the bottom of the second leg 30B can be lower than or higher than the horizontal height of the radiating body 30C, as long as the second leg 30B and the housing 10 can be fixedly connected, and no further restrictions are imposed. The number and position of the first leg 30A and the second leg 30B of the radiating structure 30 are also not limited, as long as the first leg 30A and the second leg 30B can be fixedly connected to the circuit board 20 and the housing 10 respectively.

[0041] Furthermore, such as Figure 3 and Figure 4As shown, the antenna device 100 of the present invention further includes a third radiating antenna 40 fixed on the circuit board 20, the third radiating antenna 40 being located between the first radiating antenna 31 and the second radiating antenna 32. Preferably, the third radiating antenna 40 is configured as a ceramic antenna, which, along with the first radiating antenna 31 and the second radiating antenna 32, is located on the same surface of the printed circuit board 20 and is fixedly connected to the printed circuit board 20.

[0042] The antenna device 100 further includes a wiring harness assembly 50 and a shielding cover 60. Both the wiring harness assembly 50 and the shielding cover 60 are located between the housing 10 and the circuit board 20, and both are fixedly connected to the housing 10. This arrangement simplifies the assembly process, making the overall assembly of the antenna device 100 simpler and easier.

[0043] Of course, the first radiating antenna 31, the second radiating antenna 32, and the third radiating antenna 40 in this invention can be fixedly connected to the circuit board 20 to form a small assembly. This small assembly can then be installed onto the first housing 11, which is convenient for installation and facilitates mass production. Specifically, the first leg 30A of the first radiating antenna 31 and the first leg 30A of the second radiating antenna 32 are first fixedly soldered to the printed circuit board 20. Then, the third radiating antenna 40 is fixed to the printed circuit board 20. This arrangement allows the printed circuit board 20, the first radiating antenna 31, the second radiating antenna 32, and the third radiating antenna 40 to form a single assembly, which is then installed onto the first housing 11. Specifically, the second leg 30B of the first radiating antenna 31 and the second leg 30B of the second radiating antenna 32 are connected and fixed to the corresponding fixing posts 110 on the first housing 11. To ensure the stability of the printed circuit board 20, several limiting holes 22 can be formed on the printed circuit board 20. Simultaneously, limiting posts 112 corresponding to the limiting holes 22 are provided on the first housing 11. When the fixing post 110 on the first housing 11 is inserted into the through hole 30D at the bottom of the second support leg 30B, the limiting post 112 on the first housing 11 also inserts into the limiting holes 22 on the printed circuit board 20. This arrangement not only secures the radiating structure 30 but also makes the printed circuit board 20 connection more stable and less prone to shaking. Furthermore, the wire harness assembly 50 and the shielding cover 60 can be directly soldered to the other side of the printed circuit board 20. This allows the radiating antenna, printed circuit board 20, wire harness assembly 50, and shielding cover 60 to be assembled as a single unit and installed together on the first housing 11, as described above. Finally, the second housing 12 is fixedly connected to the first housing 11 using the connector 70.

[0044] In summary, the present invention provides an antenna device 100, comprising a housing 10, a circuit board 20 fixedly connected to the housing 10, and a radiating structure 30 connected to the circuit board 20 and the housing 10. Both the circuit board 20 and the radiating structure 30 are housed within the housing space of the housing 10. The radiating structure 30 includes a first leg 30A and a second leg 30B, the first leg 30A being fixedly connected to the circuit board 20, and the second leg 30B being fixedly connected to the housing 10. This invention not only simplifies the assembly process of the antenna device 100 but also effectively reduces its production cost. Specifically, the metal antenna does not require a separate plastic bracket and mold, reducing the overall cost; the second leg 30B of the radiating structure 30 is fixed to the housing 10, reducing the area of ​​the circuit board 20; the local flatness of the fixing post 110 on the housing 10 is easily controlled, reducing the precision requirements of the housing 10, and making the dimensions of the housing 10 easier to control and manufacture. The radiating structure has more than 30 legs that are fixed to meet the antenna reliability requirements. The radiating antenna, shielding cover 60 and wire harness assembly 50 are all fixedly connected to the printed circuit board 20 and installed on the housing 10 after forming an integral assembly. The welding and installation process is simple. Of course, the radiating antenna and printed circuit board 20 can also be directly installed as a small component on the first housing 11. The installation is convenient and conducive to mass production.

[0045] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually. In addition, different parts between embodiments can also be combined with each other, and this invention does not limit this.

[0046] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. An antenna device, characterized by: The antenna device comprises a shell, a circuit board fixedly connected with the shell, and a radiation structure connected with the circuit board and the shell; the circuit board and the radiation structure are accommodated in an accommodation space of the shell, the radiation structure comprises a first leg and a second leg, the first leg is fixedly connected with the circuit board, and the second leg is fixedly connected with the shell; the radiation structure further comprises a radiation main body fixedly connected with the first leg and the second leg, and the first leg and the second leg are arranged on the sides of the radiation main body respectively; the bottom end of the first leg is lower than the horizontal height of the radiation main body, and the bottom end of the first leg is fixedly connected with the circuit board; the antenna device further comprises a sealing piece, a groove is arranged on the wall surface of the shell close to the radiation structure, the groove surrounds the radiation structure, the sealing piece is accommodated in the groove and is fixedly connected with the radiation structure; the first leg and the second leg are oppositely arranged, the bottom end of the second leg is lower than the horizontal height of the radiation main body, and the bottom end of the second leg is higher than the bottom end of the first leg; the shell comprises a first shell and a second shell, the first shell and the second shell are fixedly connected through a connecting piece to form an accommodation space for accommodating the circuit board and the radiation structure, a fixed column is arranged on the first shell, a through hole is arranged at the bottom end of the second leg, and the fixed column is inserted into the through hole to fixedly connect the first shell and the second leg.

2. The antenna device of claim 1, wherein: The shell comprises a first shell and a second shell, the first shell and the second shell are fixedly connected through a connecting piece, a buckle part is arranged on the first shell, a buckling part is arranged at the bottom end of the second leg, and the buckle part is buckled into the buckling part to fixedly connect the first shell and the second leg.

3. The antenna device of claim 1, wherein: The shell comprises a first shell and a second shell, the first shell and the second shell are fixedly connected through a connecting piece, a fixed column is arranged on the second shell, a through hole is arranged at the bottom end of the second leg, and the fixed column is inserted into the through hole to fixedly connect the second shell and the second leg.

4. The antenna device of claim 1, wherein: The radiation structure comprises a first radiation antenna and a second radiation antenna, and the first radiation antenna and the second radiation antenna are arranged at the two side edge positions of the circuit board. The first radiation antenna and the second radiation antenna each comprise the first leg and the second leg, the first leg of the first radiation antenna and the first leg of the second radiation antenna are fixedly connected with the circuit board, and the second leg of the first radiation antenna and the second leg of the second radiation antenna are fixedly connected with the shell.

5. The antenna device of claim 4, characterized in that: The antenna device further comprises a third radiation antenna fixed on the circuit board, and the third radiation antenna is located between the first radiation antenna and the second radiation antenna.

6. The antenna device of claim 1, wherein: The antenna device further comprises a wire harness assembly and a shielding cover, and the wire harness assembly and the shielding cover are located between the shell and the circuit board and are fixedly connected with the shell.

7. The antenna device of claim 1, wherein: The circuit board is configured as a printed circuit board, and the first leg is fixed to the printed circuit board by hot melt welding.

8. A vehicle characterized by: The vehicle comprises an antenna device according to any one of claims 1 to 7.

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