Protective multi-band external antenna
By designing a protective cover and mounting plate to form a closed space in the external antenna, combined with seals and waterproof connectors, the problem of insufficient protection of external antennas is solved, and stable signal transmission and equipment adaptability are achieved in harsh environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YINGTUOPU COMM TECH CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional external antennas lack effective protective structures, making them susceptible to rainwater and dust intrusion, which can lead to problems such as short circuits and corrosion on the PCB board, affecting the stability and lifespan of communication equipment and increasing maintenance costs.
The protective cover and mounting plate form a closed space, combined with seals and high-water-resistance connectors and cables, to ensure that external factors do not intrude. At the same time, the angle can be adjusted through sliding grooves and fasteners to adapt to different scenarios.
It effectively isolates external intrusion, ensures stable operation of the antenna in multi-frequency environments, improves equipment flexibility and signal transmission reliability, and reduces maintenance costs.
Smart Images

Figure CN224384524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of external antennas, and in particular to a protective multi-band external antenna. Background Technology
[0002] In the field of communications, external antennas are key components for signal reception and transmission, and their performance stability and reliability directly affect communication quality. With the rapid development of wireless communication technology, multi-band antennas are increasingly widely used in mobile communications, the Internet of Things, satellite communications and other fields.
[0003] External antennas are usually installed in complex environments such as outdoors, and are easily corroded by external factors such as rain and dust. Traditional external antennas lack effective protective structures, and rain and dust can easily penetrate into the antenna and directly contact core components such as PCB boards, causing problems such as short circuits and corrosion on the PCB boards. This seriously affects the normal operation of the antenna, reduces its service life, and increases the maintenance cost of the equipment. Utility Model Content
[0004] In order to overcome the shortcomings of existing external antennas that lack effective protection structures, this utility model provides a protective multi-band external antenna.
[0005] The technical implementation scheme of this utility model is as follows: a protective multi-band external antenna, including a fixing frame, a connector, a mounting component, a mounting plate, a PCB board, a protective cover, a connector, a cable, and a sealing component. The fixing frame is provided with a connector, the connector is provided with a mounting component, the mounting component is provided with a mounting plate, the mounting plate is provided with a protective cover, and the protective cover is provided with a PCB board. The protective cover and the mounting plate together form a closed space to enclose the PCB board. Multiple connectors are provided at the bottom of the protective cover, and the cable is connected to the PCB board through the connectors. A sealing component is provided between the protective cover and the mounting plate.
[0006] Furthermore, it also includes fixing bolts, first screws and second screws. The fixing bolts are threaded to the mounting plate and fix the mounting component to the mounting plate. The mounting bracket has multiple fixing holes. The mounting plate has multiple first mounting holes around its circumference. The first screws pass through the first mounting holes and are threaded to the protective cover. The PCB board has multiple second mounting holes in the middle. The second screws pass through the second mounting holes and are threaded to the protective cover.
[0007] Furthermore, it also includes a first fastener, a sliding groove on the fixing frame, a rotatable connection between the fixing frame and the connector, and the first fastener passes through the sliding groove and is threadedly connected to the connector.
[0008] Furthermore, it also includes a second fastener, with the connector and the mounting part being rotatably connected, and both the connector and the mounting part being slidably connected to the second fastener, which secures the connector and the mounting part with a nut.
[0009] Furthermore, the first fastener, the second fastener, the fixing bolt, the first screw, and the second screw are all standard fasteners.
[0010] Furthermore, the connector is a cable connector with an IP68 waterproof rating.
[0011] Furthermore, the cable as a whole has an IP68 waterproof rating.
[0012] Furthermore, the protective cover and mounting plate are integrally die-cast from metal materials.
[0013] The present invention has the following advantages: 1. The present invention forms a closed space by means of a protective cover and a mounting plate to wrap the PCB board, which effectively isolates the intrusion of external rainwater, dust and other substances into the PCB board. In addition, a sealing element is provided between the two to further enhance the protective performance and ensure that the antenna works stably in a multi-frequency environment.
[0014] 2. This utility model can achieve angle adjustment between the fixed frame and the connecting part by using the sliding groove on the fixed frame in conjunction with the first fastener; by using the sliding connection and nut locking, the angle of the mounting part relative to the connecting part can be finely adjusted, which is convenient to adapt to different scenario requirements and increase the flexibility and adaptability of the equipment.
[0015] 3. The connector of this utility model is a cable connector with a waterproof rating of IP68, which prevents rainwater and dust from entering the sealed cavity through the gaps in the connector and ensures long-term waterproof reliability at the interface; the cable as a whole has an IP68 waterproof rating, which ensures the signal transmission stability of the entire cable in harsh environments (such as immersion and high-pressure spray) and avoids short circuits caused by water seepage into the cable. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is an exploded view of the present invention.
[0018] Figure 3 This is a three-dimensional structural diagram of the fixing frame, connector and mounting component of this utility model.
[0019] Figure 4 This is an exploded view of the mounting plate, PCB board, and protective cover of this utility model.
[0020] In the above attached figures: 1: Fixing bracket, 101: Fixing hole, 102: Sliding groove, 2: Connector, 3: Mounting component, 4: Mounting plate, 401: First mounting hole, 5: PCB board, 501: Second mounting hole, 6: Protective cover, 601: Connector, 7: Cable, 8: First fastener, 9: Second fastener, 10: Fixing bolt, 11: First screw, 12: Second screw, 13: Seal. Detailed Implementation
[0021] References to embodiments herein mean that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] A type of protective multi-band external antenna, such as Figures 1-4 As shown, it includes a fixing frame 1, a connector 2, a mounting component 3, a mounting plate 4, a PCB board 5, a protective cover 6, a connector 601, a cable 7, and a sealing component 13. The fixing frame 1 is equipped with the connector 2, the connector 2 is equipped with the mounting component 3, the mounting component 3 is equipped with the mounting plate 4, the mounting plate 4 is equipped with the protective cover 6, and the protective cover 6 is equipped with the PCB board 5. The protective cover 6 and the mounting plate 4 together form a closed space to enclose the PCB board 5. The bottom of the protective cover 6 is equipped with multiple connectors 601, and the cable 7 is connected to the PCB board 5 through the connectors 601. A sealing component 13 is provided between the protective cover 6 and the mounting plate 4.
[0023] When the protective multi-band external antenna is in operation, the cable 7 is connected to the PCB board 5 on the mounting plate 4 inside the protective cover 6 via the connector 601 at the bottom of the protective cover 6. The signal is transmitted to the PCB board 5 for processing through the cable 7. The enclosed space formed by the protective cover 6 and the mounting plate 4 encloses the PCB board 5, effectively isolating the PCB board 5 from external environmental factors (such as rainwater and dust). At the same time, the seal 13 between the protective cover 6 and the mounting plate 4 further enhances the protective performance, ensuring that the antenna works stably in a multi-band environment.
[0024] like Figures 1-4As shown, it also includes a fixing bolt 10, a first screw 11, and a second screw 12. The fixing bolt 10 is threadedly connected to the mounting plate 4, fixing the mounting component 3 to the mounting plate 4. The fixing bracket 1 has multiple fixing holes 101, and the mounting plate 4 has multiple first mounting holes 401 around its circumference. The first screw 11 passes through the first mounting holes 401 and is threadedly connected to the protective cover 6. The PCB board 5 has multiple second mounting holes 501 in the middle, and the second screw 12 passes through the second mounting holes 501 and is threadedly connected to the protective cover 6. The fixing bolt 10 securely fixes the mounting component 3 to the mounting plate 4 through the threaded connection, improving structural stability; the first screw 11 locks the protective cover 6 and the mounting plate 4, ensuring the integrity of the sealed space; the second screw 12 fixes the position of the PCB board 5, preventing vibration displacement.
[0025] like Figure 3 As shown, it also includes a first fastener 8. The fixing frame 1 is provided with a sliding groove 102. The fixing frame 1 and the connector 2 are rotatably connected. The first fastener 8 passes through the sliding groove 102 and is threadedly connected to the connector 2. The sliding groove 102 on the fixing frame 1 allows the connector 2 to slide along the fixing frame 1. With the threaded connection of the first fastener 8, the angle between the fixing frame 1 and the connector 2 can be adjusted to adapt to the needs of different scenarios.
[0026] like Figure 3 As shown, it also includes a second fastener 9. The connecting member 2 and the mounting member 3 are rotatably connected, and both the connecting member 2 and the mounting member 3 are slidably connected to the second fastener 9. The second fastener 9 fixes the connecting member 2 and the mounting member 3 with a nut. By using the sliding connection and the nut locking, the angle of the mounting member 3 relative to the connecting member 2 can be finely adjusted, increasing the flexibility and adaptability of the equipment.
[0027] The first fastener 8, the second fastener 9, the fixing bolt 10, the first screw 11, and the second screw 12 all use standard fasteners. This reduces maintenance costs, improves component interchangeability, and avoids installation compatibility issues caused by non-standard parts.
[0028] Connector 601 is a cable connector with an IP68 waterproof rating. It prevents rainwater and dust from entering the sealed cavity through the gaps in connector 601, ensuring long-term waterproof reliability at the interface.
[0029] Cable 7 has an overall IP68 waterproof rating. This ensures the stability of signal transmission of the entire cable 7 in harsh environments (such as immersion and high-pressure spray) and prevents short circuits caused by water seepage.
[0030] The protective cover 6 and the mounting plate 4 are integrally die-cast from metal materials, which improves the mechanical strength of the protective cover 6 and the mounting plate 4.
[0031] The above embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of the present invention. Therefore, the protection scope of the present invention is not limited to the above embodiments, but should be the maximum scope that conforms to the innovative features mentioned in the claims.
Claims
1. A protective multi-band external antenna, characterized in that, The device includes a mounting bracket (1), a connector (2), a mounting component (3), a mounting plate (4), a PCB board (5), a protective cover (6), a connector (601), a cable (7), and a seal (13). The mounting bracket (1) is equipped with a connector (2), the connector (2) is equipped with a mounting component (3), the mounting component (3) is equipped with a mounting plate (4), the mounting plate (4) is equipped with a protective cover (6), and the protective cover (6) is equipped with a PCB board (5). The protective cover (6) and the mounting plate (4) together form a closed space to enclose the PCB board (5). The bottom of the protective cover (6) is equipped with multiple connectors (601). The cable (7) is connected to the PCB board (5) through the connectors (601). A seal (13) is provided between the protective cover (6) and the mounting plate (4).
2. The protective multiband external antenna according to claim 1, characterized in that, It also includes a fixing bolt (10), a first screw (11) and a second screw (12). The fixing bolt (10) is threaded to the mounting plate (4). The fixing bolt (10) fixes the mounting part (3) on the mounting plate (4). The fixing bracket (1) has multiple fixing holes (101). The mounting plate (4) has multiple first mounting holes (401) around its circumference. The first screw (11) passes through the first mounting hole (401) and is threaded to the protective cover (6). The PCB board (5) has multiple second mounting holes (501) in the middle. The second screw (12) passes through the second mounting hole (501) and is threaded to the protective cover (6).
3. The protective multiband external antenna according to claim 2, wherein the antenna is a monopole antenna. It also includes a first fastener (8), a sliding groove (102) on the fixing frame (1), and a rotatable connection between the fixing frame (1) and the connector (2). The first fastener (8) passes through the sliding groove (102) and is threadedly connected to the connector (2).
4. A protective multi-band external antenna according to claim 3, characterized in that, It also includes a second fastener (9), the connector (2) and the mounting part (3) are rotatably connected, the connector (2) and the mounting part (3) are slidably connected to the second fastener (9), and the second fastener (9) fixes the connector (2) and the mounting part (3) by a nut.
5. A protective multi-band external antenna according to claim 4, characterized in that, The first fastener (8), the second fastener (9), the fixing bolt (10), the first screw (11) and the second screw (12) are all standard fasteners.
6. A protective multi-band external antenna according to claim 5, characterized in that, The connector (601) is a cable (7) connector (601) with a waterproof rating of IP68.
7. A protective multi-band external antenna according to claim 6, characterized in that, The cable (7) has an overall IP68 waterproof rating.
8. A protective multi-band external antenna according to claim 7, characterized in that, The protective cover (6) and the mounting plate (4) are integrally die-cast from metal materials.