Vehicle-mounted anti-interference antenna

Abstract

The utility model discloses a vehicle-mounted anti-interference antenna which is arranged at the top of a vehicle body, the vehicle-mounted anti-interference antenna comprises a mounting bottom plate, an antenna body, a hot air assembly and a baffle, the mounting bottom plate is provided with a first seat surface and a second seat surface which are oppositely arranged in the thickness direction of the mounting bottom plate, and the vehicle-mounted anti-interference antenna is arranged at the top of the vehicle body through the mounting bottom plate; the antenna body is arranged on one side of the first seat surface, and a gap is formed between the antenna body and the first seat surface; the hot air assembly is fixed on one side, facing the antenna body, of the mounting bottom plate; the baffle plate is fixed with the mounting bottom plate and surrounds the periphery of the antenna body, and one side, facing the antenna body, of the baffle plate is provided with a guide surface facing the antenna body. According to the application, hot air is blown out from the gap through the hot air assembly and is blown to the guide surface of the baffle plate, and the guide surface guides the hot air, so that the hot air is blown to the antenna body, thereby melting fallen snow or ice on the antenna body, and improving the signal receiving and transmission capability of the antenna body.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted antennas, and in particular to a vehicle-mounted anti-interference antenna. Background Art

[0002] The car antenna is a device that receives high-frequency radio waves emitted by the transmitter and transmits them to the receiver of the car radio, car phone or radio navigation equipment to demodulate the carrier. The classification and function of the car antenna are divided into: front window hidden antenna, front window pull-rod antenna, front and rear side panel hidden antenna, roof antenna, antenna amplifier according to the installation position and structure of the car antenna.

[0003] The roof antenna is usually a shark fin antenna, which can reduce the turbulence generated by the vehicle during fast driving, further reduce wind resistance, and also save fuel and reduce noise. However, when it snows, snow easily accumulates on the surface of the shark fin antenna or even freezes, affecting the signal reception and transmission of the shark fin antenna. Utility Model Content

[0004] The main purpose of this application is to provide a vehicle-mounted anti-interference antenna, which aims to solve the problem that snow easily accumulates on the surface of the shark fin antenna when it snows, affecting the signal reception and transmission of the shark fin antenna.

[0005] To achieve the above-mentioned purpose, the present application provides a vehicle-mounted anti-interference antenna, which is arranged on the top of a vehicle body, and the vehicle-mounted anti-interference antenna includes a mounting base plate, an antenna body, a hot air assembly and a baffle, wherein the mounting base plate has a first seat surface and a second seat surface which are arranged opposite to each other in the direction of its own thickness, and the vehicle-mounted anti-interference antenna is arranged on the top of the vehicle body through the mounting base plate, and the first seat surface is located on the side of the second seat surface which is away from the vehicle body; the antenna body is arranged on the side of the first seat surface which is away from the second seat surface and has a gap with the first seat surface; the hot air assembly is fixed to the side of the mounting base plate facing the antenna body, and the hot air assembly blows hot air out of the gap in response to a driving force; the baffle is fixed to the mounting base plate and is arranged around the outer periphery of the antenna body, and a guide surface facing the antenna body is arranged on the side of the baffle facing the antenna body.

[0006] Optionally, the hot air assembly includes a fan and a heating wire, wherein the fan is fixed to a side of the first seat surface away from the second seat surface; the heating wire is arranged around a side of the first seat surface away from the second seat surface; wherein the fan blows hot air to the guide surface in response to a driving force.

[0007] Optionally, there are multiple fans and all are located on the inner periphery of the heating wire, and the air outlet of each fan is toward the outer periphery of the heating wire.

[0008] Optionally, the vehicle-mounted anti-interference antenna also includes a support column and a connecting plate, wherein the support column is fixed to the side of the first seat surface facing away from the second seat surface; the connecting plate is fixed to the end of the support column away from the mounting base plate, and an arc-shaped recess is provided on the side of the connecting plate facing the mounting base plate, and the air outlet of the fan faces the arc-shaped recess; wherein the antenna body is fixed on the side of the connecting plate facing away from the mounting base plate.

[0009] Optionally, the guide surface is annular, and in the thickness direction of the mounting base plate, the center of the guide surface is recessed toward the outer periphery of the baffle.

[0010] Optionally, in the thickness direction of the mounting base plate, the distance between the center of the guide surface and the first seat surface is a, the minimum distance between the connecting plate and the first seat surface is b, and a>b.

[0011] Optionally, the guide surface includes a first sub-guide surface and a second sub-guide surface which are sequentially arranged in a direction away from the mounting base plate, and an angle between the first sub-guide surface and the second sub-guide surface is c, and 90°<c<180°.

[0012] Optionally, a plurality of drainage holes are provided at the connection between the baffle plate and the mounting base plate.

[0013] Optionally, a slope is provided at the edge of the first seat surface, and the slope expands in a direction approaching the second seat surface.

[0014] Optionally, a filter is provided on a side of the baffle away from the mounting base plate, and the filter connects the baffle and the antenna body.

[0015] An embodiment of the present application proposes a vehicle-mounted anti-interference antenna, in which the second seat surface of the mounting base is fixed to the top of the car by bonding, and the hot air is blown out from the gap through the hot air component and blown to the guide surface of the baffle. The guide surface guides the hot air so that the hot air is blown to the antenna body, thereby melting the fallen snow or ice on the antenna body and improving the signal reception and transmission capabilities of the antenna body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a vehicle-mounted anti-interference antenna provided in an embodiment of the present application;

[0017] Figure 2 for Figure 1 A structural breakdown diagram of the embodiment in FIG.

[0018] Figure 3 for Figure 2 Another perspective structural diagram of the embodiment;

[0019] Figure 4 A structural breakdown diagram of the mounting base plate of a vehicle-mounted anti-interference antenna provided in an embodiment of the present application.

[0020] In the figure: 1. Installation base plate; 2. Antenna body; 3. Hot air assembly; 31. Fan; 32. Heating wire; 4. Baffle; 41. Guide surface; 411. First sub-guide surface; 412. Second sub-guide surface; 42. Drain hole; 5. Support column; 6. Connecting plate.

[0021] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0026] refer to Figure 1 to Figure 4 It should be understood that Figure 2 to Figure 4 The connections between the components should be like Figure 1 As compact as in the example, this is just an example. Figure 2 to Figure 4 Some components in the middle are displayed separately for easy understanding. An embodiment of the present application provides a vehicle-mounted anti-interference antenna, which is arranged on the top of the vehicle body. The vehicle-mounted anti-interference antenna may include a mounting base plate 1, an antenna body 2, a hot air component 3 and a baffle 4, wherein the mounting base plate 1 has a first seat surface and a second seat surface relatively arranged in the direction of its own thickness, and the vehicle-mounted anti-interference antenna is arranged on the top of the vehicle body through the mounting base plate 1, and the first seat surface is located on the side of the second seat surface away from the vehicle body; the antenna body 2 is arranged on the side of the first seat surface away from the second seat surface and has a gap with the first seat surface; the hot air component 3 is fixed to the side of the mounting base plate 1 facing the antenna body 2, and the hot air component 3 blows hot air out of the gap in response to the driving force; the baffle 4 is fixed to the mounting base plate 1 and is arranged around the outer periphery of the antenna body 2, and the side of the baffle 4 facing the antenna body 2 is provided with a guide surface 41 facing the antenna body 2.

[0027] An embodiment of the present application proposes a vehicle-mounted anti-interference antenna, in which the second seat surface of the mounting base plate 1 is fixed to the top of the car by bonding, and the hot air is blown out from the gap through the hot air component 3 and blown to the guide surface 41 of the baffle 4. The guide surface 41 guides the hot air so that the hot air is blown to the antenna body 2, thereby melting the fallen snow or ice on the antenna body 2 and improving the signal reception and transmission capabilities of the antenna body 2.

[0028] Specifically, the second seat surface of the mounting base 1 is fixed to the top of the car by bonding, and the side of the second side facing away from the first side can be provided with an arc structure that fits the roof to ensure the fit between the mounting base 1 and the roof of the car.

[0029] Among them, Figure 1 As shown, the antenna body 2 is a shark fin antenna.

[0030] refer to Figure 2 to Figure 4 In an exemplary embodiment, the hot air assembly 3 may include a fan 31 and a heating wire 32, wherein the fan 31 is fixed to a side of the first seat surface away from the second seat surface; the heating wire 32 is arranged around a side of the first seat surface away from the second seat surface; wherein the fan 31 blows hot air to the guide surface 41 in response to the driving force.

[0031] Specifically, a battery can be arranged on the side of the first seat surface away from the second seat surface, and the fan 31 and the heating wire 32 can be connected to the battery, or the fan 31 and the heating wire 32 can be connected to the power system of the car.

[0032] In the embodiment of the present application, the heating wire 32 heats the surrounding air, and the fan 31 blows the hot air to the guide surface 41 of the baffle 4 to form flowing hot air. The guide surface 41 further guides the hot air to the antenna body 2, which can melt the fallen snow or ice on the antenna body 2 and improve the signal reception and transmission capabilities of the antenna body 2.

[0033] In an optional embodiment, there are multiple fans 31 and all of them are located on the inner periphery of the heating wire 32 , and the air outlet of each fan 31 is facing the outer periphery of the heating wire 32 .

[0034] Specifically, multiple fans 31 jointly blow the hot air near the heating wire 32 and blow the hot air out of the gap between the antenna body 2 and the first seat surface. The hot wind formed by the hot air blows out from the gap and contacts the guide surface 41, and the guide surface 41 guides the hot air to the antenna body 2.

[0035] refer to Figure 3-4 In an optional embodiment, the vehicle-mounted anti-interference antenna may further include a support column 5 and a connecting plate 6, wherein the support column 5 is fixed to the side of the first seat surface facing away from the second seat surface; the connecting plate 6 is fixed to the end of the support column 5 away from the mounting base plate 1, and a curved recess is provided on the side of the connecting plate 6 facing the mounting base plate 1, and the air outlet of the fan 31 faces the curved recess; wherein the antenna body 2 is fixed on the side of the connecting plate 6 facing away from the mounting base plate 1.

[0036] Specifically, the fan 31 blows air to form a wind flow, and the wind flow is dispersed when it is blown to the arc-shaped depression on the connecting plate 6, and the dispersed wind flow is blown to the surroundings, so that the wind flow can be evenly blown to the guide surface 41. Compared with the above-mentioned scheme of setting multiple fans 31 on the inner periphery of the heating wire 32, the air outlet of each fan 31 is facing the outer periphery of the heating wire 32. Fewer fans 31 are used to blow the hot air evenly out of the gap, and the hot air flows more evenly, but the amount of hot air is reduced. The specific scheme to be adopted can be selected according to the actual situation.

[0037] like Figure 2 and Figure 3 As shown, the ratio of the length to the width of the mounting base plate 1 is 2.5 to 3.5. In the preferred embodiment provided in the present application, the ratio of the length to the width of the mounting base plate 1 is 3. A connecting plate 6 is provided. Three fans 31 are provided. The three fans 31 are spaced apart in the length direction of the mounting base plate 1. The connecting plate 6 is provided with three arc-shaped depressions corresponding to the three fans 31 one by one. In this way, the hot air can be blown out of the gap more evenly and blown to the guide surface 41.

[0038] refer to Figure 3-4In an exemplary embodiment, the guide surface 41 is annular, and in the thickness direction of the mounting base plate 1, the center of the guide surface 41 is recessed toward the outer periphery of the baffle 4; the guide surface 41 may include a first sub-guide surface 411 and a second sub-guide surface 412 sequentially arranged in a direction away from the mounting base plate 1, and the angle between the first sub-guide surface 411 and the second sub-guide surface 412 is c, and 90°<c<180°.

[0039] Specifically, after the hot air is blown to the guide surface 41 , it passes through the depression of the guide surface 41 and is guided, so that after the hot air is blown out of the guide surface, it blows toward the antenna body 2 , thereby melting the fallen snow or ice on the antenna body 2 .

[0040] Furthermore, in the thickness direction of the mounting base plate 1, the distance between the center of the guide surface 41 and the first seat surface is a, the minimum distance between the connecting plate 6 and the first seat surface is b, and a>b, so that it can be ensured that after the hot air is blown out of the gap, it will first pass through the first sub-guide surface 411, and then pass through the connection between the first sub-guide surface 411 and the second sub-guide surface 412, that is, the recessed part, and finally the hot air will be turned and blown along the second sub-guide surface 412 to the antenna body 2.

[0041] Among them, when 90°<c<180°, the connection between the first sub-guide surface 411 and the second sub-guide surface 412 can guide the windflow; if c≤90°, the windflow passing through the connection between the first sub-guide surface 411 and the second sub-guide surface 412 will be blocked by the second sub-guide surface 412, resulting in scattered windflow, and the windflow blown to the antenna body 2 is greatly reduced, resulting in poor use effect; if c≥180°, the windflow cannot be guided when passing through the connection between the first sub-guide surface 411 and the second sub-guide surface 412. In other words, the windflow cannot be blown to the antenna body 2.

[0042] refer to Figure 3-4 In an exemplary embodiment, a plurality of drainage holes 42 are provided at the connection between the baffle plate 4 and the mounting base plate 1; a slope is provided at the edge of the first seat surface, and the slope expands in a direction approaching the second seat surface.

[0043] Specifically, the water flow formed by the melted snow or ice will flow to the side of the first seat surface away from the second seat surface, and will be discharged from the vehicle-mounted anti-interference antenna through the drainage hole 42.

[0044] Further, such as Figure 4 As shown, a slope is provided at the edge of the first seat surface, and the slope expands in the direction close to the second seat surface, so that the water flow can be guided to the drainage hole 42 at the inclined part, the drainage effect is better, and at the same time, the water flow is prevented from contacting the fan 31 or the heating wire 32, which is more convenient to use.

[0045] It should be understood that a water baffle can be installed on the side of the first seat surface facing away from the second seat surface. The water baffle is located on the periphery of the heating wire 32 to further prevent water from contacting the heating wire 32 or the fan 31. However, the water baffle will have a certain impact on the size of the wind flow. Whether to install a waterproof board can be selected based on actual conditions.

[0046] In an exemplary embodiment, a filter is provided on a side of the baffle plate 4 facing away from the mounting base plate 1 , and the filter connects the baffle plate 4 and the antenna body 2 .

[0047] Specifically, after the filter is set, foreign debris will not enter the first seat surface through the gap between the baffle 4 and the antenna body 2, effectively preventing the fan 31 or the heating wire 32 from being damaged by interference from debris, thereby increasing the service life of the vehicle-mounted anti-interference antenna; at the same time, it prevents debris from clogging the drainage hole 42, making it more convenient to use.

[0048] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A vehicle-mounted anti-interference antenna, characterized in that: Arranged on the top of the vehicle body, the vehicle-mounted anti-interference antenna includes: The mounting base plate (1) has a first seat surface and a second seat surface which are arranged opposite to each other in the thickness direction thereof, the vehicle-mounted anti-interference antenna being arranged on the top of the vehicle body through the mounting base plate (1), and the first seat surface being located on a side of the second seat surface which is away from the vehicle body; An antenna body (2) is arranged on a side of the first seat surface facing away from the second seat surface and has a gap between the first seat surface and the first seat surface; A hot air component (3) is fixed to a side of the mounting base plate (1) facing the antenna body (2), and the hot air component (3) blows hot air out of the gap in response to a driving force; A baffle (4) is fixed to the mounting base plate (1) and is arranged around the outer periphery of the antenna body (2); a guide surface (41) facing the antenna body (2) is arranged on a side of the baffle (4) facing the antenna body (2).

2. The vehicle-mounted anti-interference antenna according to claim 1, characterized in that: The hot air component (3) comprises: A fan (31) is fixed to a side of the first seat surface facing away from the second seat surface; A heating wire (32) is disposed around a side of the first seat surface facing away from the second seat surface; Wherein, the fan (31) blows hot air to the guide surface (41) in response to the driving force.

3. The vehicle-mounted anti-interference antenna according to claim 2, characterized in that: There are a plurality of fans (31) and all are located on the inner periphery of the heating wire (32), and the air outlet of each fan (31) faces the outer periphery of the heating wire (32).

4. The vehicle-mounted anti-interference antenna according to claim 2, characterized in that: The vehicle-mounted anti-interference antenna also includes: A support column (5) is fixed to a side of the first seat surface facing away from the second seat surface; A connecting plate (6) is fixed to one end of the supporting column (5) away from the mounting base plate (1), a side of the connecting plate (6) facing the mounting base plate (1) is provided with an arc-shaped recess, and an air outlet of the fan (31) faces the arc-shaped recess; Wherein, the antenna body (2) is fixed on a side of the connecting plate (6) facing away from the mounting base plate (1).

5. The vehicle-mounted anti-interference antenna according to claim 4, characterized in that: The guide surface (41) is annular, and in the thickness direction of the mounting base plate (1), the center of the guide surface (41) is recessed toward the outer periphery of the baffle (4).

6. The vehicle-mounted anti-interference antenna according to claim 5, characterized in that: In the thickness direction of the mounting base plate (1), the distance between the center of the guide surface (41) and the first seat surface is a, the minimum distance between the connecting plate (6) and the first seat surface is b, and a>b.

7. The vehicle-mounted anti-interference antenna according to claim 6, characterized in that: The guide surface (41) comprises a first sub-guide surface (411) and a second sub-guide surface (412) which are arranged in sequence in a direction away from the mounting base plate (1); an angle between the first sub-guide surface (411) and the second sub-guide surface (412) is c, and 90°<c<180°.

8. The vehicle-mounted anti-interference antenna according to claim 1, characterized in that: A plurality of drainage holes (42) are provided at the connection between the baffle plate (4) and the mounting base plate (1).

9. The vehicle-mounted anti-interference antenna according to claim 8, characterized in that: A slope is arranged at the edge of the first seat surface, and the slope expands in a direction approaching the second seat surface.

10. The vehicle-mounted anti-interference antenna according to claim 8, characterized in that: A filter is provided on the side of the baffle (4) facing away from the mounting base plate (1), and the filter connects the baffle (4) and the antenna body (2).

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