A bowtie antenna head seal structure and method of assembly

Abstract

This invention belongs to the field of antenna technology, and specifically relates to a sealing structure for the head of a bowtie antenna and its assembly method. The invention includes a first novel arm, a second novel arm, a first vibrator plate, and a second vibrator plate. A novel arm cover plate is connected to the first novel arm, and a radio frequency (RF) wire mounting groove is provided between the first novel arm and the novel arm cover plate. An RF wire is installed in the RF wire mounting groove. An RF wire mounting hole is provided on the second novel arm, and the core wire of the RF wire is inserted into the RF wire mounting hole. The first vibrator plate is connected to the top of the first novel arm and the novel arm cover plate, and the second vibrator plate is connected to the top of the second novel arm. It also includes a left buckle plate, a right buckle plate, and a top cover plate. The left and right buckle plates fasten the first novel arm, the second novel arm, and the novel arm cover plate and are connected by pins. The top cover plate is connected to the top of the left and right buckle plates. This invention provides a sealing structure for the head of a bowtie antenna and its assembly method, solving the sealing problem of the bowtie antenna while ensuring electrical contact between the bowtie antenna arm, vibrator plate, and RF wire, ensuring that it meets the sealing requirements without the need for an antenna cover.

Description

Technical Field

[0001] This invention belongs to the field of antenna technology, and specifically relates to a bowtie antenna head sealing structure and its assembly method. Background Technology

[0002] The bowtie antenna is a variation of the biconical antenna. It possesses advantages such as planar structure, wide bandwidth, and ease of fabrication, and shares similar electrical performance with the biconical antenna. It is suitable for use as a transceiver antenna in wireless communication fields, including various detection devices (from Baidu Encyclopedia: Bowtie Antenna). A typical bowtie antenna is shown below. Figure 12 and Figure 13 As shown, it mainly consists of arm A, wall B, vibrator plate A, vibrator plate B, radio frequency line, backplate and output terminal.

[0003] like Figure 12 and Figure 13 As shown, the bowtie antenna is electrically connected by an RF line spanning between arms A and B. This RF line consists of an RF line sheath, an RF line dielectric, and an RF line core. The RF line sheath is typically made of a highly conductive metal, the RF line dielectric is generally made of a non-metallic material with a low dielectric constant, and the RF line core is primarily made of highly conductive copper wire. The bowtie antenna design requires good electrical contact between arm A, vibrator A, and the RF line sheath, as well as between arm B, vibrator B, and the RF line core. Therefore, the contact surfaces cannot be sealed with adhesive, which necessitates the addition of an antenna cover when the bowtie antenna is used outdoors to meet sealing requirements.

[0004] The bowtie antenna suffers from poor sealing performance due to its electrical contact requirements, necessitating a radome to provide a sealed environment and ensure its tri-proof (water, dust, and shock) capabilities. The introduction of a radome not only increases the cost of using the bowtie antenna but also enlarges its required space. In the context of miniaturization trends, this limits its outdoor use and prevents it from fully utilizing its wideband advantage. Furthermore, the original antenna head structure has many seams that cannot be sealed, making it impossible to prevent the ingress of corrosive gases and liquids, leading to corrosion and affecting performance. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention aims to provide a bowtie antenna head sealing structure and its assembly method, which solves the sealing problem of the bowtie antenna while ensuring electrical contact between the bowtie antenna arm, the vibrator plate and the radio frequency line, and ensures that it can meet the sealing requirements without the need for antenna cover protection.

[0006] The technical solution adopted in this invention is as follows: A bowtie antenna head sealing structure includes a first novel arm, a second novel arm, a first vibrator piece, and a second vibrator piece. A novel arm cover plate is connected to the first novel arm. A radio frequency (RF) wire conformal mounting groove is provided between the first novel arm and the novel arm cover plate. An RF wire is installed in the RF wire conformal mounting groove. An RF wire mounting hole is provided on the second novel arm. The core wire of the RF wire is inserted into the RF wire mounting hole. The first vibrator piece is connected to the top of the first novel arm and the novel arm cover plate. The second vibrator piece is connected to the top of the second novel arm. It also includes a left buckle plate, a right buckle plate, and a top cover plate. The left buckle plate and the right buckle plate fasten the first new type arm, the second new type arm, and the new type arm cover plate and then connect them by pins. The top cover plate is connected to the top of the left buckle plate and the right buckle plate.

[0007] The present invention innovatively designs the first novel arm, the second novel arm, the novel arm cover plate, the top cover plate, the left buckle plate, and the right buckle plate structure, and performs special gluing and filling processes during assembly. While ensuring good electrical contact between the bowtie antenna vibrator, the novel arm, and the radio frequency line, it achieves waterproof sealing of the bowtie antenna head, ensuring that the bowtie antenna can be used outdoors without an antenna cover.

[0008] As a preferred embodiment of the present invention, the first novel arm is provided with a deep, elongated hole and a first mounting half-groove that are interconnected, and the novel arm cover is provided with a second mounting half-groove. The second mounting half-groove, together with the lower section of the deep, elongated hole and the first mounting half-groove, forms a radio frequency (RF) wire conformal mounting groove. The RF wire is installed in the RF wire conformal mounting groove, and adhesive can be injected through the deep, elongated hole to ensure a good seal between the RF wire and the first novel arm and the novel arm cover.

[0009] As a preferred embodiment of the present invention, the upper section of the deep, elongated hole is filled with sealant.

[0010] As a preferred embodiment of the present invention, the bottom and both sides of the novel arm cover are provided with filler chamfers, and the filler chamfers are filled with sealant. The gap between the filler chamfers and the first novel arm can be filled with sealant to ensure a good seal at the joint between the novel arm cover and the first novel arm.

[0011] In a preferred embodiment of the present invention, both the left and right buckle plates are provided with novel arm-shaped locking slots, and the first novel arm and the second novel arm are respectively engaged with the novel arm-shaped locking slots of the left and right buckle plates. The novel arm-shaped locking slots on both the left and right buckle plates reduce the gaps between the left and right buckle plates and the first and second novel arms, respectively, facilitating the sealing of these gaps.

[0012] As a preferred embodiment of the present invention, the novel arm-shaped bayonet is provided with a glue storage groove, which is filled with sealant.

[0013] In a preferred embodiment of the present invention, both the top of the left buckle plate and the top of the right buckle plate are provided with protruding posts, each with a mounting pin hole. The top cover plate is connected to the protruding post by a pin, and the protruding post avoids the first and second vibrating plates in the horizontal plane. The first and second vibrating plates are located between the top cover plate and the left and right buckle plates. The areas on the first and second novel arms not covered by the first and second vibrating plates are covered and sealed by the top cover plate.

[0014] As a preferred embodiment of the present invention, a weight-reducing hole is provided in the lower part of the second novel arm.

[0015] In a preferred embodiment of the present invention, the top of the second novel arm is provided with a glue storage hole, which communicates with the RF wire mounting hole, and the glue storage hole is filled with sealant. Injecting sealant into the glue storage hole facilitates reliable sealing of the RF wire core portion.

[0016] An assembly method for a bowtie antenna head sealing structure includes the following steps: S1: Apply and fill adhesive to the bonding surfaces between the first new arm, the second new arm, the new arm cover, the radio frequency line, the left buckle plate, the right buckle plate and the top cover, as well as the reserved adhesive storage tank. S2: Connect the new arm cover plate to the first new arm with screws, connect the first vibrator plate to the top of the first new arm and the new arm cover plate with screws, connect the second vibrator plate to the top of the second new arm with screws, apply epoxy glue to the pins and connect the left buckle plate and the right buckle plate, apply epoxy glue to the pins and connect the top cover plate to the left buckle plate and the right buckle plate.

[0017] The beneficial effects of this invention are as follows: 1. To solve the sealing problem of the bowtie antenna head, this invention innovatively designs a first novel arm, a second novel arm, a novel arm cover plate, a top cover plate, a left buckle plate, and a right buckle plate structure; combined with the innovative structure and special glue application and filling process, the glue application and filling effect is ensured, thereby guaranteeing the sealing performance of the bowtie antenna head.

[0018] 2. The bowtie antenna head sealing structure of the present invention, compared with the typical bowtie antenna, only adds a top cover plate, a left buckle plate, and a right buckle plate made of non-metallic wave-transparent material, which improves the sealing performance of the bowtie antenna head without reducing the antenna's electrical performance. 3. The top cover, left buckle, and right buckle, made of non-metallic wave-transparent material added to the bow-tie antenna head sealing structure of the present invention, are lightweight and, with the tight fit of the pins, enhance the vibration resistance of the bow-tie antenna head.

[0019] 4. This invention solves the sealing problem of bow tie antennas for outdoor use, effectively expanding the application range of bow tie antennas.

[0020] 5. The bowtie antenna head sealing structure provided by the present invention surrounds the radio frequency line part that affects the electrical performance with a non-metallic wave-transparent material. Thus, the outer surface of the antenna head can be sprayed with conformal coating to further improve the conformal performance of the bowtie antenna. Since the conformal coating does not come into contact with the radio frequency line, it has no effect on the electrical performance of the bowtie antenna. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure in the first direction of the present invention; Figure 2 This is a schematic diagram of the structure in the second direction of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is the front view of the first new type of arm; Figure 5 This is a cross-sectional view of the second new type of arm; Figure 6 This is a structural schematic diagram of the new type of arm cover plate; Figure 7 This is a structural diagram of the top cover plate; Figure 8 This is a structural diagram of the left and right snap-on panels; Figure 9 This is a schematic diagram of the adhesive application process before assembly of the present invention; Figure 10 This is a partial adhesive coating schematic diagram of the present invention; Figure 11 This is a diagram showing the adhesive application at the joint of the top cover plate; Figure 12 This is a schematic diagram of the structure of an existing bowtie antenna; Figure 13 yes Figure 12 A magnified view of a portion of point A in the middle.

[0022] In the diagram: 1-First novel arm; 2-Second novel arm; 3-First vibrator plate; 4-Second vibrator plate; 5-Novel arm cover plate; 6-RF cable; 7-Left buckle plate; 8-Right buckle plate; 9-Top cover plate; 11-Deep elongated hole; 12-First mounting half-groove; 21-RF cable mounting hole; 22-Weight reduction hole; 23-Glue storage hole; 51-Second mounting half-groove; 52-Glue filling chamfer; 71-Novel arm contoured bayonet; 72-Glue storage groove; 73-Protruding post. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.

[0025] like Figure 1 and Figure 2 As shown, the bowtie antenna head sealing structure of this embodiment includes a first novel arm 1, a second novel arm 2, a first vibrator plate 3, and a second vibrator plate 4. A novel arm cover plate 5 is connected to the first novel arm 1. A radio frequency (RF) wire conformal mounting groove is provided between the first novel arm 1 and the novel arm cover plate 5. An RF wire 6 is installed in the RF wire conformal mounting groove. An RF wire mounting hole 21 is provided on the second novel arm 2. The core wire of the RF wire 6 is inserted into the RF wire mounting hole 21. The first vibrator plate 3 is connected to the top of the first novel arm 1 and the novel arm cover plate 5. The second vibrator plate 4 is connected to the top of the second novel arm 2. It also includes a left buckle plate 7, a right buckle plate 8 and a top cover plate 9. The left buckle plate 7 and the right buckle plate 8 fasten the first new arm 1, the second new arm 2 and the new arm cover plate 5 and then connect them by pins. The top cover plate 9 is connected to the top of the left buckle plate 7 and the right buckle plate 8.

[0026] The present invention innovatively designs the structure of the first novel arm 1, the second novel arm 2, the novel arm cover plate 5, the top cover plate 9, the left buckle plate 7, and the right buckle plate 8, and performs special gluing and filling processes during assembly. While ensuring good electrical contact between the bowtie antenna vibrator, the novel arm, and the radio frequency line 6, it achieves waterproof sealing of the bowtie antenna head, ensuring that the bowtie antenna can be used outdoors without an antenna cover.

[0027] like Figure 3As shown, an RF cable 6 is installed on the first novel arm 1. The RF cable 6 is pressed into the groove of the first novel arm 1 by screws using the novel arm cover plate 5. The first vibrator plate 3 and the second vibrator plate 4 are installed on the top surface of the first novel arm 1 and the second novel arm 2 by screws. Then, the left buckle plate 7 and the right buckle plate 8 are fastened to the left and right sides of the bow tie antenna by fastening pins. Finally, the top cover plate 9 is assembled to the top of the bow tie antenna by fastening pins, thus completing the structural assembly.

[0028] Specifically, such as Figure 4 and Figure 6 As shown, the first novel arm 1 is provided with a deep, elongated hole 11 and a first mounting half-groove 12 that are interconnected. The novel arm cover plate 5 is provided with a second mounting half-groove 51. The second mounting half-groove 51, together with the lower section of the deep, elongated hole 11 and the first mounting half-groove 12, forms a radio frequency (RF) wire conformal mounting groove. The RF wire 6 is installed in the RF wire conformal mounting groove, and can be filled with sealant through the deep, elongated hole 11 to ensure a good seal between the RF wire 6 and the first novel arm 1 and the novel arm cover plate 5. The upper section of the deep, elongated hole 11 is filled with sealant.

[0029] The bottom and both sides of the novel arm cover plate 5 are provided with sealant-filled chamfers 52, and the sealant-filled chamfers 52 are filled with sealant. The gap between the sealant-filled chamfers 52 and the first novel arm 1 can be filled with sealant to ensure a good seal at the joint between the novel arm cover plate 5 and the first novel arm 1.

[0030] The first novel arm 1 is made of aluminum plate 5A06, which has a deep and long hole 11 for installing radio frequency line 6, a radio frequency line conformal mounting groove and a knife relief groove. Since the groove is made according to the conformal shape of radio frequency line 6, the structure has good contact with radio frequency line 6, and a space for filling glue is reserved at the top.

[0031] The new arm cover plate 5 is made of aluminum plate 5A06, and has a radio frequency line 6 mounting groove, multiple filler chamfers 52 and countersunk holes. These must be countersunk holes to ensure that the outer surface does not protrude after the countersunk screws are installed, and to ensure that there is no interference in subsequent assembly.

[0032] like Figure 8 As shown, both the left buckle plate 7 and the right buckle plate 8 are provided with novel arm-shaped locking slots 71. The first novel arm 1 and the second novel arm 2 are respectively engaged with the novel arm-shaped locking slots 71 of the left buckle plate 7 and the right buckle plate 8. The novel arm-shaped locking slots 71 on both the left buckle plate 7 and the right buckle plate 8 reduce the gaps between the left buckle plate 7 and the right buckle plate 8 and the first novel arm 1 and the second novel arm 2, respectively, facilitating the sealing of the gaps.

[0033] The novel arm-shaped bayonet 71 is provided with a glue storage tank 72, which is filled with sealant.

[0034] like Figure 7 and Figure 8 As shown, both the top of the left buckle plate 7 and the top of the right buckle plate 8 are provided with protruding posts 73. Each protruding post 73 has a mounting pin hole. The top cover plate 9 is connected to the protruding post 73 by a pin. The protruding post 73 avoids the first vibrating element 3 and the second vibrating element 4 in the horizontal plane. The first vibrating element 3 and the second vibrating element 4 are located between the top cover plate 9 and the left buckle plate 7 and the right buckle plate 8. The areas on the first novel arm 1 and the second novel arm 2 not covered by the first vibrating element 3 and the second vibrating element 4 are covered and sealed by the top cover plate 9.

[0035] The top cover plate 9 is made of glass cloth board 3240 and has tight-fitting mounting pin holes. The left and right buckle plates 8 are made of glass cloth board 3240 and have tight-fitting mounting pin holes, glue storage grooves 72 and arm-shaped bayonet openings.

[0036] like Figure 5 As shown, a weight-reduction hole 22 is provided in the lower part of the second novel arm 2. A glue storage hole 23 is provided at the top of the second novel arm 2, which communicates with the RF cable mounting hole 21. The glue storage hole 23 is filled with sealant. Injecting sealant into the glue storage hole 23 facilitates reliable sealing of the core wire portion of the RF cable 6. The material of the second novel arm 2 is aluminum plate 5A06.

[0037] like Figures 9-11 As shown, the assembly method of the bowtie antenna head sealing structure in this embodiment includes the following steps: S1: According to... Figure 9 As shown, adhesive is applied and filled into the bonding surfaces between the first novel arm 1, the second novel arm 2, the novel arm cover plate 5, the radio frequency line 6, the left buckle plate 7, the right buckle plate 8 and the top cover plate 9, as well as into the reserved adhesive storage groove 72. S2: Connect the new arm cover plate 5 to the first new arm 1 with screws, connect the first vibrator plate 3 to the top of the first new arm 1 and the new arm cover plate 5 with screws, connect the second vibrator plate 4 to the top of the second new arm 2 with screws, apply epoxy glue to the pins and connect the left buckle plate 7 and the right buckle plate 8, apply epoxy glue to the pins and connect the top cover plate 9 to the left buckle plate 7 and the right buckle plate 8.

[0038] It should be noted that the contact surfaces of the first oscillator plate 3, the second oscillator plate 4 with the radio frequency line 6, the first novel arm 1, the second novel arm 2 and the novel arm cover plate 5 are not coated with adhesive.

[0039] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A sealing structure for the head of a bowtie antenna, characterized in that: The first novel arm (1), the second novel arm (2), the first vibrator plate (3) and the second vibrator plate (4) are included. The first novel arm (1) is connected to a novel arm cover plate (5). A radio frequency line contour mounting groove is provided between the first novel arm (1) and the novel arm cover plate (5). A radio frequency line (6) is installed in the radio frequency line contour mounting groove. A radio frequency line mounting hole (21) is provided on the second novel arm (2). The core wire of the radio frequency line (6) is inserted into the radio frequency line mounting hole (21). The first vibrator plate (3) is connected to the top of the first novel arm (1) and the novel arm cover plate (5). The second vibrator plate (4) is connected to the top of the second novel arm (2). It also includes a left buckle plate (7), a right buckle plate (8) and a top cover plate (9). The left buckle plate (7) and the right buckle plate (8) fasten the first new arm (1), the second new arm (2) and the new arm cover plate (5) and then connect them by pins. The top cover plate (9) is connected to the top of the left buckle plate (7) and the right buckle plate (8).

2. The bowtie antenna head sealing structure according to claim 1, characterized in that: The first novel arm (1) is provided with a deep and long hole (11) and a first mounting half groove (12) that are interconnected. The novel arm cover plate (5) is provided with a second mounting half groove (51). The second mounting half groove (51) is combined with the lower section of the deep and long hole (11) and the first mounting half groove (12) to form a radio frequency line contour mounting groove.

3. The bowtie antenna head sealing structure according to claim 2, characterized in that: The upper section of the deep hole (11) is filled with sealant.

4. The bowtie antenna head sealing structure according to claim 1, characterized in that: The bottom and both sides of the new type of arm cover plate (5) are provided with glue-filling chamfers (52), and the glue-filling chamfers (52) are filled with sealant.

5. The bowtie antenna head sealing structure according to claim 1, characterized in that: Both the left buckle plate (7) and the right buckle plate (8) are provided with a new type of arm-shaped latch (71). The first new type of arm (1) and the second new type of arm (2) are respectively engaged with the new type of arm-shaped latch (71) of the left buckle plate (7) and the new type of arm-shaped latch (71) of the right buckle plate (8).

6. The bowtie antenna head sealing structure according to claim 5, characterized in that: The novel arm contoured bayonet (71) is provided with a glue storage tank (72), which is filled with sealant.

7. The bowtie antenna head sealing structure according to claim 1, characterized in that: The top of the left buckle plate (7) and the top of the right buckle plate (8) are both provided with protruding posts (73). The protruding posts (73) are provided with mounting pin holes. The top cover plate (9) is connected to the protruding posts (73) by pins. The protruding posts (73) are respectively separated from the first vibrator plate (3) and the second vibrator plate (4) in the horizontal plane.

8. The bowtie antenna head sealing structure according to claim 1, characterized in that: The second novel arm (2) has a weight reduction hole (22) in the lower part.

9. The bowtie antenna head sealing structure according to claim 1, characterized in that: The second novel arm (2) is provided with a glue storage hole (23) at the top, which is connected to the radio frequency line mounting hole (21), and the glue storage hole (23) is filled with sealant.

10. A method for assembling a bowtie antenna head sealing structure, used for assembling the bowtie antenna head sealing structure according to claim 1, characterized in that: Includes the following steps: S1: Apply adhesive and fill the bonding surfaces between the first new arm (1), the second new arm (2), the new arm cover plate (5), the radio frequency line (6), the left buckle plate (7), the right buckle plate (8) and the top cover plate (9) and the reserved adhesive storage groove (72). S2: Connect the new arm cover plate (5) to the first new arm (1) with screws, connect the first vibrator plate (3) to the top of the first new arm (1) and the new arm cover plate (5) with screws, connect the second vibrator plate (4) to the top of the second new arm (2) with screws, apply epoxy glue to the pins and connect the left buckle plate (7) and the right buckle plate (8), apply epoxy glue to the pins and connect the top cover plate (9) to the left buckle plate (7) and the right buckle plate (8).

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