Isolation assembly and vehicle-mounted continuous wave radar

Abstract

The utility model specifically relates to an isolation assembly and a vehicle-mounted continuous wave radar, and belongs to the field of vehicle-mounted continuous wave radars. The isolation assembly is used for the vehicle-mounted continuous wave radar, the vehicle-mounted continuous wave radar comprises a base, a transmitting end and a receiving end, the transmitting end and the receiving end are arranged on the two sides of the base respectively in the first direction, the isolation assembly comprises a shell and a skin, the shell covers the base, first openings are formed in the two sides of the shell in the first direction, and second openings are formed in the two sides of the shell in the second direction. A second opening is formed in one side of the shell, the second opening is communicated with the two first openings, the first direction is perpendicular to the second direction, and the shell is made of aramid paper honeycombs. The skin is made of metal and laid on the outer surface of the shell, and a wave absorbing layer is arranged on the outer surface of the skin. The wave absorbing layer enables the shell to absorb electromagnetic waves, the shell is arranged between the transmitting end and the receiving end, and the isolation degree between the transmitting end and the receiving end is increased.

Description

Technical Field

[0001] The utility model belongs to the field of vehicle-mounted continuous wave radars, and in particular relates to an isolation component and a vehicle-mounted continuous wave radar. Background Art

[0002] Continuous wave radar is a radar system that emits continuous wave signals, and is mainly used for tasks such as target detection, tracking and ranging. Continuous wave radar has the advantages of high-precision ranging, high resolution and high reliability. At the same time, compared with pulse radar, the transmitter structure of continuous wave radar is relatively simple, and it is easy to achieve miniaturization and integration.

[0003] Vehicle-mounted continuous wave radar is a common application of continuous wave radar. The inventor found that continuous wave radar includes a transmitter and a receiver. The transmitter is responsible for generating high-power radio frequency signals, and the receiver is used to receive and process echo signals. Common vehicle-mounted continuous wave radars have the problem of poor isolation between the transmitter and the receiver, and poor isolation can easily affect the detection performance of the radar. Therefore, how to improve the isolation between the transmitter and the receiver is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The utility model aims to provide an isolation component and a vehicle-mounted continuous wave radar, through which the isolation degree between a transmitting end and a receiving end of the vehicle-mounted continuous wave radar can be increased.

[0005] In order to achieve the above-mentioned purpose of the utility model, the technical solution adopted by the utility model is: on the one hand, the embodiment of the utility model provides an isolation component for a vehicle-mounted continuous wave radar, the vehicle-mounted continuous wave radar includes a base, a transmitting end and a receiving end, along the first direction, the transmitting end and the receiving end are respectively arranged on both sides of the base, the isolation component includes a shell and a skin, the shell cover is arranged on the base, along the first direction, the two sides of the shell are provided with a first opening, along the second direction, one side of the shell is provided with a second opening, the second opening is connected with the two first openings, the first direction is perpendicular to the second direction, and the material of the shell includes aramid paper honeycomb. The skin is made of metal and laid on the outer surface of the shell, and the outer surface of the skin is provided with an absorbing layer.

[0006] In some embodiments, along the first direction, a projection of the transmitting end on the opposite surface of the shell is located inside the shell, and a projection of the receiving end on the opposite surface of the shell is located inside the shell.

[0007] In some embodiments, along the third direction, the shell includes a first surface and a second surface that are opposite to each other, and the first surface and the second surface are respectively provided with a recessed portion.

[0008] In some embodiments, a first stepped portion is provided between the recessed portion of the first surface and the first surface, and the first stepped portion includes a first transition surface and a second transition surface connected in sequence, the first transition surface is connected to the first surface, and the second transition surface is connected to the inner wall surface of the recessed portion.

[0009] In some embodiments, a second step portion is provided between the first step portion and the first surface, and the second step portion includes a third transition surface and a fourth transition surface connected in sequence, the third transition surface is connected to the first surface, and the fourth transition surface is connected to the first transition surface.

[0010] In some embodiments, along the first direction, the shell includes a first wall and a second wall relative to each other, the first opening is formed on the first wall and the second wall respectively, the first wall and the second wall are connected by a third wall, and the outer wall surface of the third wall is an arc surface with the axis extending along the first direction.

[0011] On the other hand, the embodiment of the utility model also provides a vehicle-mounted continuous wave radar, including a base, the isolation component in the above embodiment, a transmitter and a receiver. The base is used to connect with the vehicle, the isolation component cover is arranged on the base, the transmitter is used to transmit radio frequency signals, and the receiver is used to receive and process echo signals. Along the first direction, the transmitter and the receiver are respectively arranged on both sides of the base.

[0012] In some embodiments, it also includes a rotating part, which is disposed on the vehicle. The rotating part includes a rotating end whose rotating axis is perpendicular to the first direction, and the base is connected to the rotating end.

[0013] The utility model has the following beneficial effects:

[0014] 1. The first opening is connected to the second opening, so that when disassembling the housing, it is not necessary to disassemble the components of the vehicle-mounted continuous wave radar, making the disassembly of the housing more convenient.

[0015] 2. The shell is made of aramid paper honeycomb, which has the advantages of light weight, high strength, good heat insulation and sound absorption performance, strong plasticity, and easy processing into various shapes.

[0016] 3. The skin on the outer surface of the shell can increase the waterproofness and weather resistance of the shell.

[0017] 4. The wave-absorbing layer enables the shell to absorb electromagnetic waves. The shell is arranged between the transmitting end and the receiving end, thereby increasing the isolation between the transmitting end and the receiving end. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the isolation assembly of the utility model (showing the third wall);

[0019] Figure 2 It is a structural schematic diagram of the isolation assembly of the utility model (showing the first step portion and the second step portion);

[0020] Figure 3 for Figure 2 A magnified image of point A;

[0021] Figure 4 The utility model is a schematic diagram of the structure of the vehicle-mounted continuous wave radar.

[0022] Figure numbers: 1-shell, 2-first opening, 3-second opening, 4-recessed portion, 5-first surface, 6-second transition surface, 7-first transition surface, 8-fourth transition surface, 9-third transition surface, 10-base, 11-transmitting end, 12-receiving end, 13-rotating portion, 14-third wall. DETAILED DESCRIPTION

[0023] 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. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0024] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] See also Figure 1 and Figure 2 On the one hand, the embodiment of the utility model provides an isolation component for a vehicle-mounted continuous wave radar, which includes a base 10, a transmitting end 11 and a receiving end 12. Along the first direction, the transmitting end 11 and the receiving end 12 are respectively arranged on both sides of the base 10. The isolation component includes a shell 1 and a skin. The shell 1 is covered on the base 10. Along the first direction, both sides of the shell 1 are provided with first openings 2. Along the second direction, one side of the shell 1 is provided with a second opening 3. The first direction is perpendicular to the second direction. The second opening 3 is connected to the two first openings 2. The material of the shell 1 includes aramid paper honeycomb. The skin is made of metal and laid on the outer surface of the shell 1. The outer surface of the skin is provided with an absorbing layer.

[0026] The first direction may be the direction indicated by the X-axis in the figure, the second direction may be the direction indicated by the Z-axis in the figure, the first direction may be the horizontal direction, and the second direction may be the vertical direction.

[0027] The first opening 2 allows the housing 1 to avoid the transmitting end 11 and the receiving end 12 when the housing 1 is covered on the base 10 .

[0028] The second opening 3 enables the base 10 to enter the housing 1 through the second opening 3 .

[0029] The first opening 2 and the second opening 3 are connected to each other, so that when the housing 1 is disassembled, it is not necessary to disassemble the components of the vehicle-mounted continuous wave radar, making the disassembly of the housing 1 more convenient.

[0030] The material of the shell 1 includes aramid paper honeycomb, which has the advantages of being light, high in strength, good in heat insulation and sound absorption performance, and strong in plasticity, and easy to be processed into various shapes.

[0031] The skin on the outer surface of the shell 1 can increase the waterproofness and weather resistance of the shell 1.

[0032] The wave absorbing layer enables the housing 1 to absorb electromagnetic waves. The housing 1 is disposed between the transmitting end 11 and the receiving end 12 , thereby increasing the isolation between the transmitting end 11 and the receiving end 12 .

[0033] The absorbing layer can be selected from existing products, for example, it can be an absorbing metal or an absorbing coating. The specific principle of absorbing electromagnetic waves is well known to those skilled in the art and will not be described in detail here.

[0034] See also Figure 4 In some embodiments, along the first direction, a projection of the transmitting end 11 on the opposite surface of the housing 1 is located inside the housing 1 , and a projection of the receiving end 12 on the opposite surface of the housing 1 is located inside the housing 1 .

[0035] The projection of the transmitting end 11 on the opposite surface of the shell 1 is located inside the shell 1, that is, along the first direction, the shell 1 can completely separate the transmitting end 11 from the receiving end 12. Similarly, the projection of the receiving end 12 on the opposite surface of the shell 1 is located inside the shell 1, so that along the first direction, the shell 1 can completely isolate the receiving end 12 from the transmitting end 11, thereby increasing the isolation between the transmitting end 11 and the receiving end 12.

[0036] See also Figure 2 In some embodiments, along the third direction, the housing 1 includes a first surface 5 and a second surface that are oppositely disposed, and the first surface 5 and the second surface are respectively provided with a recessed portion 4.

[0037] The third direction may be the direction indicated by the Y axis in the figure.

[0038] On one hand, the recessed portion 4 increases the space size inside the housing 1, so that the housing 1 can accommodate the base 10 therein. On the other hand, the recessed portion 4 can cooperate with the protruding structure on the base 10, so that the shape inside the housing 1 can be adapted to the base 10. On another hand, the recessed portion 4 makes the length of the first opening 2 along the third direction smaller than the length inside the housing 1, thereby reducing the risk of the housing 1 being separated from the base 10.

[0039] See also Figure 3 In some embodiments, a first stepped portion is provided between the recessed portion 4 of the first surface 5 and the first surface 5, and the first stepped portion includes a first transition surface 7 and a second transition surface 6 connected in sequence, the first transition surface 7 is connected to the first surface 5, and the second transition surface 6 is connected to the inner wall surface of the recessed portion 4.

[0040] The first transition surface 7 and the second transition surface 6 may be perpendicular.

[0041] Under the action of the first transition surface 7 and the second transition surface 6, the first step portion can position the portion of the base 10 disposed in the recess 4. For example, the base 10 can partially abut against the second transition surface 6 so that the depth of the base 10 entering the recess 4 can be fixed.

[0042] In this embodiment, a first step portion may also be provided between the recessed portion 4 of the second surface and the second surface.

[0043] See also Figure 3 In some embodiments, a second step portion is arranged between the first step portion and the first surface 5 , and the second step portion includes a third transition surface 9 and a fourth transition surface 8 connected in sequence, the third transition surface 9 is connected to the first surface 5 , and the fourth transition surface 8 is connected to the first transition surface 7 .

[0044] The third transition surface 9 and the fourth transition surface 8 may be perpendicular.

[0045] Under the action of the third transition surface 9 and the fourth transition surface 8 , the second step portion can position the base 10 . For example, the outer wall of the base 10 abuts against the third transition surface 9 and the fourth transition surface 8 , thereby fixing the position of the base 10 relative to the shell 1 .

[0046] In the embodiment where a first step portion is provided between the recessed portion 4 of the second surface and the second surface, a second step portion may be provided between the first step portion of the second surface and the second surface.

[0047] See also Figure 1 In some embodiments, along the first direction, the shell 1 includes a first wall and a second wall relative to each other, the first opening 2 is formed on the first wall and the second wall respectively, the first wall and the second wall are connected by a third wall 14, and the outer wall surface of the third wall 14 is an arc surface whose axis extends along the first direction.

[0048] The outer wall surface of the third wall 14 is an arc surface, so that the connection between the first wall and the third wall 14 is an arc, and the connection between the second wall and the third wall 14 is also an arc, that is, the first wall, the second wall and the third wall 14 can form a cylindrical structure. The advantage of such a setting is that when the transmitting end 11 and the receiving end 12 rotate relative to the base 10, the shell 1 can still have a good isolation effect on the transmitting end 11 and the receiving end 12.

[0049] See also Figure 4 On the other hand, the embodiment of the utility model further provides a vehicle-mounted continuous wave radar, comprising a base 10, the isolation component in the above embodiment, a transmitting end 11 and a receiving end 12. The base 10 is used to connect with the vehicle, the isolation component cover is arranged on the base 10, the transmitting end 11 is used to transmit radio frequency signals, and the receiving end 12 is used to receive and process echo signals. Along the first direction, the transmitting end 11 and the receiving end 12 are respectively arranged on both sides of the base 10.

[0050] The structures and working principles of the transmitting end 11 and the receiving end 12 are well known to those skilled in the art and will not be described in detail here.

[0051] See also Figure 4 In some embodiments, the vehicle further includes a rotating portion 13, the rotating portion 13 is disposed on the vehicle, the rotating portion 13 includes a rotating end whose rotating axis is perpendicular to the first direction, and the base 10 is connected to the rotating end.

[0052] By controlling the rotation of the rotating end, the orientation of the base 10 can be adjusted, and thus the detection range of the vehicle-mounted continuous wave radar can also be adjusted.

[0053] The rotating part 13 can be a suitable product selected from the prior art. For example, the rotating part 13 can be a rotating motor, a fixed end of which is connected to the vehicle body, and an output end of which is the rotating end.

[0054] The above embodiments are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations, modifications, and substitutions made by ordinary technicians in this field to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An isolation component for a vehicle-mounted continuous wave radar, the vehicle-mounted continuous wave radar comprising a base (10), a transmitting end (11) and a receiving end (12), wherein along a first direction, the transmitting end (11) and the receiving end (12) are respectively arranged on both sides of the base (10), characterized in that: The isolation assembly comprises: A shell (1) is arranged on the base (10), and along the first direction, first openings (2) are arranged on both sides of the shell (1), and along the second direction, a second opening (3) is arranged on one side of the shell (1), and the second opening (3) is connected to the two first openings (2), the first direction is perpendicular to the second direction, and the shell (1) is made of aramid paper honeycomb; The skin is made of metal and is laid on the outer surface of the shell (1); the outer surface of the skin is provided with a wave absorbing layer.

2. The isolation assembly according to claim 1, characterized in that Along the first direction, the projection of the transmitting end (11) on the opposite surface of the shell (1) is located inside the shell (1), and the projection of the receiving end (12) on the opposite surface of the shell (1) is located inside the shell (1).

3. The isolation assembly according to claim 1, characterized in that Along the third direction, the housing (1) comprises a first surface (5) and a second surface that are arranged opposite to each other, and the first surface (5) and the second surface are respectively provided with a recessed portion (4).

4. The isolation assembly according to claim 3, characterized in that A first stepped portion is provided between the recessed portion (4) of the first surface (5) and the first surface (5), the first stepped portion comprising a first transition surface (7) and a second transition surface (6) connected in sequence, the first transition surface (7) being connected to the first surface (5), and the second transition surface (6) being connected to the inner wall surface of the recessed portion (4).

5. The isolation assembly according to claim 4, characterized in that A second step portion is provided between the first step portion and the first surface (5), and the second step portion comprises a third transition surface (9) and a fourth transition surface (8) which are connected in sequence, the third transition surface (9) being connected to the first surface (5), and the fourth transition surface (8) being connected to the first transition surface (7).

6. The isolation assembly according to claim 1, characterized in that Along the first direction, the shell (1) comprises a first wall and a second wall opposite to each other, the first opening (2) is formed on the first wall and the second wall respectively, the first wall and the second wall are connected by a third wall (14), and the outer wall surface of the third wall (14) is an arc surface whose axis extends along the first direction.

7. A vehicle-mounted continuous wave radar, characterized in that: include: A base (10) is used to connect to a vehicle. The isolation assembly according to any one of claims 1 to 6, wherein the cover is arranged on the base (10); A transmitting end (11), used for transmitting a radio frequency signal; The receiving end (12) is used for receiving and processing the echo signal. Along the first direction, the transmitting end (11) and the receiving end (12) are respectively arranged on two sides of the base (10).

8. The vehicle-mounted continuous wave radar according to claim 7, characterized in that: It also includes a rotating part (13), which is arranged on the vehicle. The rotating part (13) includes a rotating end whose rotating axis is perpendicular to the first direction, and the base (10) is connected to the rotating end.

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