Radar with shielding backward electromagnetic wave isolation structure

Abstract

The utility model discloses a radar with a shielding backward electromagnetic wave isolation structure, and belongs to the technical field of radars. Comprising a radar plate, and the front surface of the radar plate is provided with electronic components. The shielding structure encloses the electronic component and is arranged on the front surface of the radar plate; and the shielding cover is arranged on the back surface of the radar plate. The beneficial effects are that backward electromagnetic waves of the radar can be shielded, interference of the backward electromagnetic waves on the radar is avoided, the cost is low, the versatility is strong, and diversified production requirements of the household appliance industry can be satisfied.

Description

Technical Field

[0001] This utility model relates to the field of radar technology, and in particular to a radar with a shielded rearward electromagnetic wave isolation structure. Background Technology

[0002] In the process of intelligent transformation of home appliances, millimeter-wave radar plays a crucial role in realizing functions such as intelligent sensing and precise control, greatly improving the intelligence level of home appliances and the user experience. However, home appliances typically have complex internal structures and compact spaces, making millimeter-wave radar susceptible to interference from internal components after installation. For example, the rotating parts of a washing machine and the fan inside an air conditioner, although located behind the radar, reflect electromagnetic waves from the front panel when the radar is operating. These reflected waves are then transmitted backward and reflected again within the internal structure. Because these components are close to the radar, they are more easily detected, leading to frequent false alarms.

[0003] In existing technologies, conventional methods to solve the above problems include: First, optimizing the distance between the radar and the panel and the panel thickness, but this will increase production costs. For manufacturers that have already started mass production, changing the product structure is almost not feasible. Second, using algorithms to filter out such interference targets. However, this requires a large amount of data to identify interference characteristics, and once the type of home appliance is changed, data must be collected again. It lacks universality and is difficult to meet the diverse production needs of the home appliance industry. Utility Model Content

[0004] The purpose of this utility model is to provide a radar with a shielded rear electromagnetic wave isolation structure to solve the above-mentioned technical problems;

[0005] A radar with a shielded rearward electromagnetic wave isolation structure includes,

[0006] A radar board, the front of which is provided with electronic components;

[0007] A shielding structure, which encloses the electronic components, is disposed on the front side of the radar panel;

[0008] A shielding cover is provided on the back of the radar panel.

[0009] Preferably, the shape of the shielding structure includes a rectangular shell, a cylindrical shell, and a conical shell.

[0010] Preferably, the shielding structure is a metal body, a wave absorber, or a stretchable conductive foam.

[0011] Preferably, the area enclosed by the shielding structure is smaller than the area of ​​the radar plate.

[0012] Preferably, the dimensions of the shielding structure are 21mm × 21mm × 9mm.

[0013] Preferably, the thickness of the shielding structure is 1mm to 4mm.

[0014] Preferably, the electronic components include a transmitting antenna and a receiving antenna.

[0015] Preferably, the back of the radar panel is also provided with electrical connectors.

[0016] Preferably, the radar is a millimeter-wave radar.

[0017] Preferably, the back of the radar plate faces the electromagnetic wave back-reflecting component.

[0018] The advantages of this invention are: it can shield the radar's backward electromagnetic waves, preventing them from interfering with the radar; it is low in cost, highly versatile, and can meet the diverse production needs of the home appliance industry. Attached Figure Description

[0019] Figure 1 This is a front view of the radar with a shielded rear electromagnetic wave isolation structure according to this utility model;

[0020] Figure 2 This is a side view of the radar with a shielded rearward electromagnetic wave isolation structure according to this utility model;

[0021] Figure 3 This is a perspective view of the radar with a shielded rear electromagnetic wave isolation structure according to this utility model;

[0022] Figure 4 This is a schematic diagram of one embodiment of the radar with a shielded rear electromagnetic wave isolation structure according to the present invention.

[0023] In the attached diagram: 1. Radar board; 11. Electronic components; 2. Shielding structure; 3. Shielding cover; 4. Electrical connectors; 5. Electromagnetic wave back reflection assembly; 6. Panel. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0027] A radar with a shielded rearward electromagnetic wave isolation structure, such as Figures 1 to 3 As shown, including,

[0028] Radar board 1, with electronic components 11 on the front side;

[0029] Shielding structure 2 encloses electronic components 11 and is located on the front side of radar plate 1;

[0030] The shield 3 is located on the back of the radar plate 1.

[0031] Specifically, this utility model provides a radar with a shielded rear electromagnetic wave isolation structure. The rear electromagnetic waves on the back of the radar plate 1 are shielded by the shielding structure 2, so as to avoid the rear electromagnetic waves from interfering with the radar. It has low cost, strong versatility and can meet the diverse production needs of the home appliance industry.

[0032] In a preferred embodiment, the shape of the shielding structure 2 includes a rectangular shell, a cylindrical shell, and a conical shell, but the shape may also be of other types.

[0033] Specifically, the rectangular housing can fit most radar panels 1 and regular spaces inside home appliances, making it easy to install and fix. The cylindrical housing can provide all-round uniform shielding in a limited space. The conical housing helps to guide electromagnetic waves in a specific direction and reduce reflection interference. Multiple shapes meet the complex and diverse internal structure requirements of home appliances and enhance product versatility.

[0034] In a preferred embodiment, the shielding structure 2 is a metal body, a wave absorber, or a stretchable conductive foam.

[0035] Specifically, the metal body uses its high conductivity to reflect electromagnetic waves, resulting in a strong shielding effect. The wave absorber converts electromagnetic waves into heat energy and other energy dissipation, reducing reflection. The stretchable conductive foam combines stretchability and conductivity, allowing it to fit tightly into the radar plate 1 and irregular spaces, adapting to environmental changes such as vibration, and ensuring shielding stability.

[0036] In a preferred embodiment, the area enclosed by the shielding structure 2 is smaller than the area of ​​the radar plate 1;

[0037] The dimensions of shielding structure 2 are 21mm × 21mm × 9mm;

[0038] The thickness of shielding structure 2 is 1mm to 4mm.

[0039] Specifically, the dimensions of 21mm×21mm×9mm are an optimized size determined by considering the internal space of the home appliance, the size of the radar panel 1, and the electromagnetic wave shielding requirements, which facilitates installation and ensures the shielding effect.

[0040] The thickness of shielding structure 2 is 3mm, which can reduce material costs and weight while ensuring shielding effect. The thickness of shielding structure 2 can be flexibly selected in different application scenarios.

[0041] In a preferred embodiment, electronic component 11 includes a transmitting antenna and a receiving antenna.

[0042] Specifically, the transmitting antenna is responsible for emitting electromagnetic waves, and the receiving antenna receives the reflected electromagnetic waves. The two work together to achieve the radar ranging function. The transmitting and receiving antennas are integrated on the radar board 1, which can shorten the signal transmission path, reduce signal loss, and improve the sensitivity and ranging accuracy of the radar system.

[0043] In a preferred embodiment, the back of the radar plate 1 is also provided with an electrical connector 4.

[0044] Specifically, the electrical connector 4 facilitates electrical connection between the radar board 1 and other components of the appliance, enabling functions such as power supply and signal transmission. The standardized electrical connector 4 facilitates installation and maintenance, reduces assembly difficulty and cost, and improves production efficiency.

[0045] In a preferred embodiment, the radar is a millimeter-wave radar.

[0046] Specifically, millimeter-wave radar has high measurement accuracy, can accurately detect the distance and movement of objects around home appliances, can work in harsh environments, can adapt to the complex electromagnetic environment, temperature and humidity changes inside home appliances, has low cost, and is suitable for large-scale application in the home appliance industry to improve the level of intelligence of home appliances.

[0047] In a preferred embodiment, referencing Figure 4 The back of the radar panel 1 faces the electromagnetic wave back-reflecting component 5.

[0048] Specifically, the electromagnetic wave back-reflection component 5 is a rotating part in the internal structure of a home appliance. In this embodiment, taking the fan inside an air conditioner as an example, the radar plate 1 emits electromagnetic waves to the air conditioner panel 6, and the panel 6 reflects the electromagnetic waves backward. At this time, the fan further reflects the electromagnetic waves. Due to the effect of the shielding structure 2, the electromagnetic waves further reflected by the fan are isolated and cannot enter the radar, thereby achieving the shielding effect, avoiding interference from the back electromagnetic waves to the radar, and preventing false alarms.

[0049] The shielding cover 3 on the back of the radar board 1 is used to prevent electromagnetic interference from other modules in the home appliance system (such as Wi-Fi module and Bluetooth module).

[0050] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A radar with a shielded rearward electromagnetic wave isolation structure, characterized in that, Comprising, A radar board, a front surface of the radar board is provided with electronic components; A shielding structure, the shielding structure encloses the electronic components, and is provided on the front surface of the radar board; A shielding cover, the shielding cover is provided on the back surface of the radar board.

2. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized in that, The shape of the shielding structure includes a rectangular shell, a cylindrical shell, and a conical shell.

3. The radar having a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The shielding structure is a metal body or a wave-absorbing body or a stretchable conductive foam.

4. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The area enclosed by the shielding structure is less than the area of the radar board.

5. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized in that, The size of the shielding structure is 21mm x 21mm x 9mm.

6. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The thickness of the shielding structure is 1mm-4mm.

7. The radar having a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The electronic components include transmitting antennas and receiving antennas.

8. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The back surface of the radar board is also provided with an electrical connector.

9. The radar having a shielded back electromagnetic wave isolation structure according to claim 1, characterized by, The radar is a millimeter wave radar.

10. The radar with a shielded back electromagnetic wave isolation structure according to claim 1, characterized in that, The back surface of the radar board faces an electromagnetic wave back reflection assembly.

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