A vibration-resistant waterproof antenna

Abstract

The application relates to the technical field of antenna devices, in particular to an anti-vibration waterproof antenna. The anti-vibration waterproof antenna comprises a first shell, the first shell being provided with a first docking end; a second shell, the second shell being provided with a second docking end which is docked with the first docking end, the first docking end being provided with an annular recess, the second docking end being provided with an annular protrusion, and the annular protrusion being located in the annular recess; an elastic member, the elastic member being sleeved on the annular protrusion and located between the annular protrusion and the annular recess; and an antenna unit, the antenna unit being located on the inner side of the first shell and the second shell; wherein the first shell is threadedly connected with the second shell to compress the elastic member between the annular protrusion and the annular recess. Since the elastic member is sleeved on the annular recess and simultaneously contacts the top and two sides of the annular protrusion, the contact area is larger, which is beneficial to improving the sealing property; meanwhile, the first shell is threadedly connected with the second shell, the connection is more stable, the pressure on the elastic member is more uniform, and the anti-vibration property and the sealing property are further improved.

Description

Technical Field

[0001] This application relates to the field of antenna equipment technology, specifically to a vibration-resistant and waterproof antenna. Background Technology

[0002] High-precision positioning and navigation technology plays an increasingly crucial role in various outdoor engineering machinery operations, such as road construction, building construction, farmland improvement, airport construction, and bridge engineering. These application scenarios require antenna equipment to operate stably and reliably for extended periods in complex and changing outdoor environments, especially in environments with high-intensity vibration and impact, while also effectively resisting the erosion caused by environmental factors such as rain.

[0003] Currently, the navigation and measurement antennas commonly used in domestic construction machinery equipment mainly rely on snap-fit, screw-locking, and threaded assembly structures for their housings. However, these existing technologies have significant shortcomings in dealing with engineering environments with high-intensity vibration and impact, as well as outdoor rainy environments. Utility Model Content

[0004] This application primarily addresses the technical problems of poor vibration resistance and water resistance in existing antenna assembly structures.

[0005] According to a first aspect, one embodiment provides a vibration-resistant and waterproof antenna, comprising:

[0006] A first shell, wherein the first shell is provided with a first docking end;

[0007] The second shell has a second docking end that docks with the first docking end. The first docking end has an annular recess, and the second docking end has an annular protrusion. The annular protrusion is located inside the annular recess.

[0008] An elastic element is sleeved on the annular protrusion and located between the annular protrusion and the annular recess;

[0009] An antenna unit is located inside the first housing and the second housing;

[0010] The first shell and the second shell are threaded together to press the elastic element between the annular protrusion and the annular recess.

[0011] In some embodiments, the elastic element includes a sealing portion and a buffer portion, the sealing portion being located between the annular recess and the annular protrusion, and the buffer portion protruding from the first shell and / or the second shell.

[0012] In some embodiments, the inner wall of the first mating end is provided with an internal thread, and the second mating end is provided with a connecting portion, wherein the connecting portion is provided with an external thread that connects with the internal thread.

[0013] In some embodiments, the connecting portion is located radially inside the annular protrusion.

[0014] In some embodiments, the annular protrusion is provided with an annular step, and the outer edge of the annular recess abuts the sealing portion against the annular step.

[0015] In some embodiments, a mounting groove is formed between the connecting portion and the protrusion, and the inner edge of the annular recess abuts the sealing portion against the mounting groove.

[0016] In some embodiments, the first shell is a hat-shaped structure, and a plurality of first reinforcing ribs are provided at the brim position, the plurality of first reinforcing ribs being arranged at intervals along the circumferential direction;

[0017] And / or, the second shell is a bowl-shaped structure, and a plurality of second reinforcing ribs are provided on the outer side of the second shell, with the plurality of second reinforcing ribs arranged at intervals along the circumferential direction.

[0018] In some embodiments, the vibration-resistant and waterproof antenna includes a buffer pad disposed on the lower side of one of the first housing and the second housing.

[0019] In some embodiments, the vibration-resistant and waterproof antenna includes a vent valve disposed on the first housing or the second housing and used to balance the internal and external air pressure.

[0020] In some embodiments, the vibration-resistant and waterproof antenna includes an amplification circuit board and a cable assembly. The circuit board is fixed inside the first housing and the second housing, the antenna unit is fixed to the amplification circuit board, and the cable assembly is electrically connected to the amplification circuit board.

[0021] According to the vibration-resistant and waterproof antenna of the above embodiment, the first shell and the second shell are joined together at a mating end to form an internal cavity that accommodates the antenna unit and other electronic components. The first mating end has an annular recess, and the second mating end has an annular protrusion. An elastic element is fitted onto the annular protrusion. The first shell and the second shell are threaded together to press the elastic element between the annular protrusion and the annular recess. Because the elastic element is fitted onto the annular recess and simultaneously contacts the top and sides of the annular protrusion, the contact area is larger, which is beneficial to improving the sealing performance. At the same time, due to the threaded connection between the first shell and the second shell, the connection is more stable, and the pressure on the elastic element is more uniform, further improving the vibration resistance and sealing performance. Attached Figure Description

[0022] Figure 1 This is a perspective view of one embodiment of the vibration-resistant and waterproof antenna of this application;

[0023] Figure 2 for Figure 1A three-dimensional view of the anti-vibration and waterproof antenna from another angle;

[0024] Figure 3 for Figure 1 Exploded view of a vibration-resistant and waterproof antenna;

[0025] Figure 4 for Figure 1 Cross-sectional view of a vibration-resistant and waterproof antenna;

[0026] Figure 5 for Figure 1 A schematic diagram of the elastic component of a vibration-resistant and waterproof antenna;

[0027] Figure 6 for Figure 1 Front view of the vibration-resistant and waterproof antenna;

[0028] Figure 7 for Figure 1 Top view of the anti-vibration and waterproof antenna;

[0029] Figure 8 for Figure 1 Top view of a vibration-resistant and waterproof antenna;

[0030] Figure 9 for Figure 1 Left view of the anti-vibration and waterproof antenna;

[0031] Figure 10 for Figure 1 Right view of the anti-vibration and waterproof antenna.

[0032] Figure label:

[0033] 100. First shell; 110. First mating end; 111. Annular recess; 112. First reinforcing rib;

[0034] 200. Second shell; 210. Second mating end; 211. Annular protrusion; 2111. Annular step; 212. Connecting part; 213. Second reinforcing rib; 214. Mounting groove;

[0035] 300. Elastic element; 310. Sealing part; 320. Buffer part;

[0036] 400. Antenna element; 410. Upper antenna element; 420. Lower antenna element; 430. Feed pin;

[0037] 500. Amplification circuit board;

[0038] 600. Cable assemblies;

[0039] 700. Radio frequency connectors;

[0040] 800, cushioning pad;

[0041] 900, Vent valve. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0043] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0044] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0045] In related technologies, antenna housing assembly structures mainly rely on snap-fit, screw-locking, and threaded methods. However, these existing technologies have significant shortcomings in dealing with engineering environments with high-intensity vibration and shock, as well as outdoor rain environments.

[0046] Snap-fit ​​assembly structures exhibit poor stability under high-frequency vibration, and their structural characteristics make it difficult to evenly distribute the pressure applied to the waterproof sealing ring, easily leading to seal failure. While screw-locking structures offer improved resistance to vibration and impact, they also face the problem of uneven pressure distribution on the sealing ring. Furthermore, they require extremely strict control over the screw layout and tightening torque, resulting in complex manufacturing processes and low tolerance for errors.

[0047] Threaded assembly structures offer advantages in terms of ease of assembly and reliability, and the pressure applied to the sealing ring is relatively uniform. However, the commonly used O-ring or planar sealing ring designs are still insufficient under high-intensity vibration and impact environments. They lack effective buffering mechanisms and cannot effectively absorb and disperse the impact energy transmitted from the external environment to the internal structure of the antenna. This leaves the internal precision electronic components at risk for extended periods, ultimately affecting the overall stability and lifespan of the antenna.

[0048] To address the aforementioned problems, one embodiment provides a vibration-resistant and waterproof antenna, such as... Figures 1-5 As shown, the vibration-resistant and waterproof antenna includes a first shell 100, a second shell 200, an elastic element 300, and an antenna element 400.

[0049] The first shell 100 has a first docking end 110. Specifically, the first shell 100 can be an upper shell, and it has a brim-shaped structure. The opening side of the brim-shaped structure is the first docking end 110. The second shell 200 has a second docking end 210 that docks with the first docking end 110. Specifically, the second shell 200 can be a lower shell, and it has a bowl-shaped structure. The opening side of the bowl-shaped structure is the second docking end 210. The first shell 100 and the second shell 200 are docked through the docking ends to form an internal cavity that accommodates the antenna unit 400 and other electronic components. The upper shell can be made of PC, ASA, or PC+ABS weather-resistant plastic material, which is better suited for outdoor use; the lower shell can be made of aluminum alloy, which has better strength than plastic and can resist strong vibration and impact.

[0050] The first mating end 110 has an annular recess 111, and the second mating end 210 has an annular protrusion 211, which is located within the annular recess 111. An elastic element 300 is sleeved on the annular protrusion 211 and located between the annular protrusion 211 and the annular recess 111. The elastic element 300 can be made of an elastic material such as silicone rubber. The elastic element 300, positioned between the annular recess 111 and the annular protrusion 211, enables a seal between the upper and lower shells. The first shell 100 and the second shell 200 are threaded together to press the elastic element 300 between the annular protrusion 211 and the annular recess 111.

[0051] Antenna unit 400 is located inside the first shell 100 and the second shell 200. Antenna unit 400 can be composed of an upper antenna unit 410 and a lower antenna unit 420 stacked together and fixed on the amplifier circuit board 500, and plays the role of receiving and transmitting electromagnetic wave signals.

[0052] In the vibration-resistant and waterproof antenna of the above embodiment, since the elastic element 300 is sleeved on the annular recess 111 and contacts the top and sides of the annular protrusion 211, the contact area is larger, which is beneficial to improving the sealing performance. At the same time, since the first shell 100 and the second shell 200 are connected by threads, the connection is more stable and the pressure on the elastic element 300 is more uniform, which further improves the vibration resistance and sealing performance.

[0053] In some embodiments, such as Figure 4 and Figure 5 As shown, the elastic element 300 includes a sealing part 310 and a buffer part 320. The sealing part 310 is located between the annular recess 111 and the annular protrusion 211, and the buffer part 320 protrudes from the second shell 200. The portion of the buffer part 320 exposed outside the second shell 200 can effectively buffer the impact or collision of the external environment on the antenna, ensuring the stable operation of the internal components.

[0054] In other embodiments, the buffer portion 320 may protrude from the first shell 100, or protrude from both the first shell 100 and the second shell 200. The overall shape of the buffer portion 320 may be annular, and the local shape is not limited. It is understood that when the buffer portion 320 protrudes from the first shell 100 or the second shell 200, it can be the first to receive the impact from the external environment and reduce the impact on the interior of the shell through the buffering effect.

[0055] In some embodiments, such as Figure 4 As shown, the inner wall of the first mating end 110 is provided with an internal thread, and the second mating end 210 is provided with a connecting part 212, which is provided with an external thread that connects with the internal thread. The connecting part 212 can be a ring structure, protruding from the second mating end 210. When the upper shell and the lower shell are connected, the connecting part 212 extends into the upper shell, and the external thread of the connecting part 212 engages with the internal thread of the upper shell to realize the connection between the upper shell and the lower shell.

[0056] The connecting portion 212 is located radially inside the annular protrusion 211. This arrangement is intended to ensure that the sealing portion 310 is located outside the connecting portion 212, preventing moisture, dust, and other external environmental contaminants from entering the connection point and causing a weak connection. The connecting portion 212 is located inside the sealing portion 310, which helps to press the sealing portion 310 together to improve its sealing performance.

[0057] In some embodiments, such as Figure 4 As shown, an annular step 2111 is provided on the annular protrusion 211, and the outer edge of the annular recess 111 abuts the sealing part 310 against the annular step 2111. A mounting groove 214 is formed between the connecting part 212 and the protrusion, and the inner edge of the annular recess 111 abuts the sealing part 310 against the mounting groove 214.

[0058] An annular step 2111 is disposed on the annular convex portion 211, which can increase the contact area between the sealing portion 310 and the lower shell, thereby facilitating the improvement of the sealing performance. The cross-sectional shape of the annular concave portion 111 may be angular, the outer edge of the annular concave portion 111 holds the outer portion of the sealing portion 310 close to the outer side against the annular step 2111, and the inner edge thereof holds the inner portion of the sealing portion 310 close to the inner side against the installation groove 214. The abutting action of the outer edge and the inner edge of the annular concave portion 111 further improves the sealing effect of the sealing portion 310.

[0059] In this embodiment, the sealing portion 310 and the buffer portion 320 are of an integrated structure, as Figure 5 shown, the overall cross-sectional shape of the elastic member 300 presents an "Ω"-shaped structure. The elastic member 300 adopting this cross-sectional design not only enables the lower side to be stably installed on the annular convex portion 211 and the installation groove 214 of the lower shell, but also enables the upper side to be compression-fitted through the outer edge and the inner edge of the annular concave portion 111, ensuring reliable waterproof performance of the antenna.

[0060] In some embodiments, as Figure 6-10 shown, the first shell 100 is of a cap-type structure, and a plurality of first reinforcing ribs 112 are provided at the brim position, and the plurality of first reinforcing ribs 112 are arranged at intervals along the circumferential direction. Providing the plurality of first reinforcing ribs 112 helps to improve the overall structural strength and vibration resistance. The second shell 200 is of a bowl-type structure, a plurality of second reinforcing ribs 213 are arranged on the outer side of the second shell 200, and the plurality of second reinforcing ribs 213 are arranged at intervals along the circumferential direction. Providing the second reinforcing ribs 213, together with the first reinforcing ribs 112, enhances structural stability and impact resistance.

[0061] In some embodiments, as Figure 4 shown, the vibration-resistant waterproof antenna includes a buffer pad 800, the buffer pad 800 is disposed on one of the lower middle sides of the first shell 100 and the second shell 200. The buffer pad 800 is made of rubber-based elastic material, and in this embodiment, it is specifically attached to the outer surface of the bottom of the lower shell, used for buffering vibration and impact between the antenna and the mounting surface during installation.

[0062] The vibration-resistant waterproof antenna includes a ventilation valve 900, the ventilation valve 900 is disposed on the first shell 100 or the second shell 200, and is used for balancing internal and external air pressure. In this embodiment, it is disposed at the bottom of the second shell 200. It is used to balance the air pressure between the closed inner cavity of the antenna and the external environment, and prevent the internal and external air pressure difference caused by temperature changes from damaging the sealing performance and structural integrity of the shell.

[0063] In some embodiments, as Figures 3-4As shown, the vibration-resistant and waterproof antenna includes an amplifier circuit board 500, a cable assembly 600, and an RF connector 700. The amplifier circuit board 500 is fixed to the inner cavity of the first housing 100 and the second housing 200. The antenna unit 400 is fixed to the amplifier circuit board 500, and the cable assembly 600 is electrically connected to the amplifier circuit board 500.

[0064] Specifically, the antenna unit 400 includes an upper antenna unit 410 and a lower antenna unit 420, which are soldered to the amplifier circuit board 500 using a feed pin 430 and locked to the amplifier circuit board 500 by fastening screws and nuts. Epoxy resin glue is applied to the heads of the fastening screws and nuts to ensure the assembly is secure and reliable. The cable assembly 600 is specifically an MCX-J connector cable assembly 600, which is soldered to the back of the amplifier circuit board 500 to form an antenna electromagnetic component.

[0065] The TNC / MCX-KFK RF connector 700 is secured to the side of the lower housing with fastening screws. The end inserted into the lower housing is connected to the MCX-J connector cable assembly 600 via a mating connection. Then, the antenna electromagnetic components are secured to the inner mounting surface of the lower housing with fastening screws. One end of the MCX-J connector cable assembly 600 is electrically connected to the amplifier circuit board 500, and the other end, with its MCX-J connector, is inserted into one end of the TNC / MCX-KFK RF connector 700. The external end of the TNC / MCX-KFK RF connector 700 connects the antenna to external devices.

[0066] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A vibration-resistant and waterproof antenna, characterized in that, include: A first shell, wherein the first shell is provided with a first docking end; The second shell has a second docking end that docks with the first docking end. The first docking end has an annular recess, and the second docking end has an annular protrusion. The annular protrusion is located inside the annular recess. An elastic element is sleeved on the annular protrusion and located between the annular protrusion and the annular recess; An antenna unit is located inside the first housing and the second housing; The first shell and the second shell are threaded together to press the elastic element between the annular protrusion and the annular recess.

2. The vibration-resistant and waterproof antenna according to claim 1, characterized in that, The elastic element includes a sealing portion and a buffer portion. The sealing portion is located between the annular recess and the annular protrusion, and the buffer portion protrudes from the first shell and / or the second shell.

3. The vibration-resistant and waterproof antenna according to claim 2, characterized in that, The inner wall of the first mating end is provided with an internal thread, and the second mating end is provided with a connecting part, wherein the connecting part is provided with an external thread that connects with the internal thread.

4. The vibration-resistant and waterproof antenna according to claim 3, characterized in that, The connecting portion is located radially inside the annular protrusion.

5. The vibration-resistant and waterproof antenna according to claim 4, characterized in that, The annular protrusion is provided with an annular step, and the outer edge of the annular concave portion abuts against the annular step.

6. The vibration-resistant and waterproof antenna according to claim 5, characterized in that, A mounting groove is formed between the connecting portion and the protrusion, and the inner edge of the annular recess abuts the sealing portion against the mounting groove.

7. The vibration-resistant and waterproof antenna according to any one of claims 1-6, characterized in that, The first shell is a hat-shaped structure, and multiple first reinforcing ribs are provided at the brim position, with the multiple first reinforcing ribs arranged at intervals along the circumferential direction; And / or, the second shell is a bowl-shaped structure, and a plurality of second reinforcing ribs are provided on the outer side of the second shell, with the plurality of second reinforcing ribs arranged at intervals along the circumferential direction.

8. The vibration-resistant and waterproof antenna according to any one of claims 1-6, characterized in that, Includes a cushioning pad, which is disposed on the lower side of one of the first shell and the second shell.

9. The vibration-resistant and waterproof antenna according to any one of claims 1-6, characterized in that, It includes a vent valve, which is disposed in the first housing or the second housing and is used to balance the internal and external air pressure.

10. The vibration-resistant and waterproof antenna according to any one of claims 1-6, characterized in that, The device includes an amplifier circuit board and a cable assembly. The amplifier circuit board is fixed inside the first housing and the second housing. The antenna unit is fixed to the amplifier circuit board. The cable assembly is electrically connected to the amplifier circuit board.

Images