CN209842055U - Magnetic field shielding device based on ultrasonic obstacle avoidance radar - Google Patents
Magnetic field shielding device based on ultrasonic obstacle avoidance radar Download PDFInfo
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- CN209842055U CN209842055U CN201920525092.3U CN201920525092U CN209842055U CN 209842055 U CN209842055 U CN 209842055U CN 201920525092 U CN201920525092 U CN 201920525092U CN 209842055 U CN209842055 U CN 209842055U
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- obstacle avoidance
- avoidance radar
- magnetic field
- ultrasonic obstacle
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Abstract
The embodiment of the application provides a magnetic field shielding device based on an ultrasonic obstacle avoidance radar, which comprises the ultrasonic obstacle avoidance radar and a shielding body with a non-closed surface, wherein the shielding body is provided with a first semi-closed cavity and is made of a high-permeability material; the ultrasonic obstacle avoidance radar is arranged in the first semi-closed cavity of the shielding body, and the working face of the ultrasonic obstacle avoidance radar is arranged in the same direction as the non-closed face. The embodiment of the application eliminates the influence of a magnetic field on the non-working surface of the ultrasonic obstacle avoidance radar, and simultaneously ensures that the working surface of the ultrasonic obstacle avoidance radar can normally work.
Description
Technical Field
The application relates to the technical field of magnetic field shielding, in particular to a magnetic field shielding device based on an ultrasonic obstacle avoidance radar.
Background
The ultrasonic obstacle avoidance radar utilizes ultrasonic signals sent and received by the ultrasonic sensor and processes the sent and received ultrasonic signals through the control circuit to calculate the distance and the direction of the ultrasonic obstacle avoidance radar from the obstacle.
However, with the continuous development and application of electronic technology, the problem of magnetic field interference is becoming more and more serious. The ultrasonic obstacle-avoiding radar inevitably receives the interference of the magnetic field in the working process, so that the ultrasonic obstacle-avoiding radar cannot normally work, therefore, a magnetic field shielding device based on the ultrasonic obstacle-avoiding radar needs to be provided, the influence of the magnetic field on the ultrasonic obstacle-avoiding radar is eliminated, and the ultrasonic obstacle-avoiding radar can normally work.
Disclosure of Invention
The embodiment of the application aims at providing a magnetic field shielding device based on ultrasonic wave obstacle avoidance radar to solve the problem that the existing ultrasonic wave obstacle avoidance radar is interfered by a magnetic field and cannot normally work.
In order to solve the above technical problem, the embodiment of the present application is implemented as follows:
the embodiment of the application provides a magnetic field shield assembly based on ultrasonic wave keeps away barrier radar, keep away barrier radar including the ultrasonic wave, still include:
the shielding body is provided with a non-closed surface and a first semi-closed cavity, and the shielding body is made of a high-permeability material;
the ultrasonic obstacle avoidance radar is arranged in the first semi-closed cavity, and the working surface of the ultrasonic obstacle avoidance radar is arranged in the same direction as the non-closed surface.
Optionally, the shield includes an inner surface, an outer surface opposite to the inner surface, and a hollow region formed by the inner surface and the outer surface, wherein the inner surface side is a first semi-closed cavity of the shield.
Optionally, the distance between the inner surface and the outer surface is 1-5 cm.
Optionally, the thickness of the inner surface and the thickness of the outer surface are both 0.8-2 mm.
Optionally, the hollow area is filled with an insulating foam material.
Optionally, the apparatus further comprises:
the shell is provided with a non-closed surface and a second semi-closed cavity;
the shielding body and the ultrasonic obstacle avoidance radar are arranged in the second semi-closed cavity and fixed on the shell, and the non-closed surface of the shell is the same as the non-closed surface of the shielding body where the ultrasonic obstacle avoidance radar is located.
Optionally, the wire outlet of the ultrasonic obstacle avoidance radar is arranged on a surface of the shielding body where the magnetic field interference is relatively weak.
Optionally, the high magnetic permeability material is iron or stainless steel.
In the embodiment of the application, because ultrasonic wave keeps away barrier radar sets up in the first semi-closed cavity of the shield that has a non-closed surface, and the working face that ultrasonic wave kept away barrier radar sets up the direction the same with non-closed surface, and the shield is made by high magnetic conductivity material, because high magnetic conductivity material can absorb magnetic field wave signal again, in order to reach the effect of shielding magnetic field, therefore, a magnetic field shield assembly based on ultrasonic wave keeps away barrier radar is provided, the influence of magnetic field to the non-working face that ultrasonic wave kept away barrier radar has been eliminated, the working face that ultrasonic wave kept away barrier radar also can normally work simultaneously, furthermore, because the device only includes a shield and the ultrasonic wave that have a non-closed surface and first semi-closed cavity keeps away barrier radar, therefore, the device simple structure, easily volume production, and low in production cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a top view of a magnetic field shielding apparatus based on an ultrasonic obstacle avoidance radar according to an embodiment of the present application;
fig. 2 is a right side view of the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar in fig. 1;
fig. 3 is a top view of a magnetic field shielding apparatus based on an ultrasonic obstacle avoidance radar according to another embodiment of the present application;
fig. 4 is a right side view of the magnetic field shielding device based on the ultrasonic obstacle avoidance radar in fig. 3.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a top view of a magnetic field shielding apparatus based on an ultrasonic obstacle avoidance radar according to an embodiment of the present application, and fig. 2 is a right side view of the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar in fig. 1. As shown in fig. 1 and 2, the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar may include: the ultrasonic obstacle avoidance radar 110 comprises an ultrasonic obstacle avoidance radar 110 and a shielding body 120 with a non-closed surface, wherein the shielding body 120 is provided with a first semi-closed cavity 130, the shielding body 120 is made of a high-permeability material, the ultrasonic obstacle avoidance radar 110 is arranged in the first semi-closed cavity 130, and the arrangement direction of the working surface of the ultrasonic obstacle avoidance radar 110 is the same as that of the non-closed surface of the shielding body 120.
In the embodiment of the present application, the working surface of the ultrasonic obstacle avoidance radar 110 refers to a surface of the ultrasonic obstacle avoidance radar 110 that transmits and receives ultrasonic waves. The shield 120 may be formed integrally or may be composed of multiple parts, which is not particularly limited in the exemplary embodiment. The shape of the shield 120 may be self-configured as desired. For example, as shown in fig. 1 and 2, the shield 120 is a cube having a non-closed surface, and the cube has a first semi-closed cavity 130 therein, wherein the non-closed surface is the right side of the shield 120 in fig. 1, i.e., the surface of the cube on the right side is the non-closed surface. For another example, the shielding body 120 is a sphere having a non-closed surface and a first semi-closed cavity therein, wherein the non-closed surface can be disposed on any surface of the sphere.
The size, shape and position of the non-closed surface can be set by itself, and this is not particularly limited in this exemplary embodiment, but it should be emphasized that the non-closed surface is set to ensure that the receiving and transmitting of the ultrasonic wave by the ultrasonic obstacle avoidance radar 110 are not affected. The size of the first semi-enclosed cavity 130 in the shield 120 may be set by itself, but it is necessary to ensure that the ultrasonic obstacle avoidance radar 110 can be disposed in the first semi-enclosed cavity 130.
Since the frequency of the magnetic field wave signal is low, the magnetic field is shielded mainly by absorption. The magnetic field wave signal is absorbed by the material with high magnetic permeability to achieve the effect of shielding the magnetic field. Based on this, the shield 120 is made of a high magnetic permeability material to shield the interference of the external magnetic field to the ultrasonic obstacle avoidance radar 110. The high magnetic permeability material may be, for example, permalloy, iron, or stainless steel, and the like, and this exemplary embodiment is not particularly limited thereto. Because iron or stainless steel are the materials of common structure, the low price and processing are convenient, consequently, compare in the shield 120 that other high magnetic permeability materials made, the shield 120 that adopts iron or stainless steel to make still has the effect that processing technology is simple, with low costs, easily volume production on the basis of guaranteeing the shielding effect to the magnetic field.
Since the magnetic field wave signal is sensitive to the thickness of the high magnetic permeability material, in other words, the thicker the shield 120 made of the high magnetic permeability material is, the better the absorption effect of the magnetic field wave signal is, and thus the better the shielding effect of the magnetic field is. Based on this, the thickness of the shielding body 120 may be set to be appropriate according to the strength of the magnetic field in the scene where the ultrasonic obstacle avoidance radar 110 is located.
The working face of ultrasonic wave obstacle avoidance radar 110 is the same with the non-closed face of shield 120's direction of setting (as in fig. 1, the non-closed face of shield 120 is located the right side, the working face of ultrasonic wave obstacle avoidance radar 110 also is located the right side), other non-working faces of ultrasonic wave obstacle avoidance radar 110 have all shielded the magnetic field through shield 120 promptly, and the working face of ultrasonic wave obstacle avoidance radar 110 does not have shield 120 to shield the magnetic field, thereby realize that other non-working faces of ultrasonic wave obstacle avoidance radar 110 all have good magnetic field shielding effect, also guarantee that the working face of ultrasonic wave obstacle avoidance radar 110 can normally receive and send the ultrasonic wave simultaneously.
Further, the wire outlet of the ultrasonic obstacle avoidance radar 110 may be disposed on a surface of the shielding body 120 where the magnetic field interference is relatively weak, so as to avoid a deterioration of the magnetic field shielding effect caused by the wire outlet disposed on the surface where the magnetic field interference is relatively strong, thereby affecting the normal operation of the ultrasonic obstacle avoidance radar 110. It should be noted that the diameter of the outlet hole may be set by itself, for example, 2cm, and this is not limited in this exemplary embodiment.
In order to protect the shielding body 120 and the ultrasonic obstacle avoidance radar 110 and prolong the service life of the shielding body 120 and the ultrasonic obstacle avoidance radar 110, the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar may further include: the housing 140 has a non-closed surface, the housing 140 has a second semi-closed cavity 150, wherein the shielding body 120 and the ultrasonic obstacle avoidance radar 110 are both disposed in the second semi-closed cavity 150 of the housing 140 and fixed on the housing 140, and the non-closed surface of the housing 140 and the non-closed surface of the shielding body 120 where the ultrasonic obstacle avoidance radar 110 is located are disposed in the same direction.
In the embodiment of the present application, the housing 140 may be integrally formed, or may be composed of multiple parts, which is not particularly limited in this embodiment. The shape and size of the housing 140 and the shape and size of the second semi-enclosed cavity 150 in the housing 140 can be set according to the requirement, which is not limited in this embodiment. For example, the shape of the housing 140 may be a cube with a non-closed surface, a sphere with a non-closed surface, or the like. For example, the second semi-enclosed cavity 150 in the housing 140 may be shaped as a semi-enclosed cube, a semi-enclosed sphere, or the like. It should be noted that the second semi-enclosed cavity 150 in the housing 140 is sized to ensure that the shield 120 and the ultrasonic obstacle avoidance radar 110 can be disposed in the second semi-enclosed cavity 150 in the housing 140. The housing 140 may be made of a solid material, such as metal or plastic, and the exemplary embodiment is not particularly limited thereto.
The non-closed surface of the housing 140 may be provided on any one surface of the housing 140, and the present exemplary embodiment is not particularly limited thereto. The size of the non-closed surface of the housing 140 can be set by itself, but it is ensured that the ultrasonic wave is not influenced by the ultrasonic obstacle avoidance radar 110 to receive and transmit the ultrasonic wave.
The shielding body 120 is arranged in the second semi-closed cavity 150 of the housing 140, the ultrasonic obstacle avoidance radar 110 is arranged in the first semi-closed cavity 130 of the shielding body 120, and the non-closed surface of the shielding body 120 and the non-closed surface of the housing 140 are both in the same direction as the arrangement direction of the working surface of the ultrasonic obstacle avoidance radar 110, so that it is ensured that other non-working surfaces of the ultrasonic obstacle avoidance radar 110 have good magnetic field shielding effect, and the working surface of the ultrasonic obstacle avoidance radar 110 can normally receive and send ultrasonic waves.
It should be noted that the shielding body 120 and the ultrasonic obstacle avoidance radar 110 may be fixed on the housing 140 by a fixing component or by welding, and placed in the second semi-closed cavity 150 of the housing 140. The fixing component may be a detachable fixing component, such as a bolt, a buckle, or the like, so as to adjust the positions of the shielding body 120 and the ultrasonic obstacle avoidance radar 110 fixed on the housing 140 according to different requirements.
In summary, because the ultrasonic obstacle avoidance radar 110 is disposed in the first semi-closed cavity 130 of the shielding body 120 having a non-closed surface, and the working surface and the non-closed surface of the ultrasonic obstacle avoidance radar 110 are disposed in the same direction, and the shielding body 120 is made of a material with high magnetic conductivity, and because the material with high magnetic conductivity can absorb magnetic field wave signals, so as to achieve the effect of shielding a magnetic field, a magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar is provided, which eliminates the influence of the magnetic field on the non-working surface of the ultrasonic obstacle avoidance radar, and simultaneously ensures that the working surface of the ultrasonic obstacle avoidance radar can work normally.
Fig. 3 is a top view of a magnetic field shielding apparatus based on an ultrasonic obstacle avoidance radar according to another embodiment of the present application, and fig. 4 is a right side view of the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar in fig. 3. As can be seen from fig. 3 and 4, the magnetic field shielding apparatus based on the ultrasonic obstacle avoidance radar may include:
an ultrasonic obstacle avoidance radar 110;
the shield comprises a shield body with a non-closed surface, the shield body comprises an inner surface 122, an outer surface 121 opposite to the inner surface 122, a hollow area 123 formed by the inner surface 122 and the outer surface 121, and a first semi-closed cavity 130, wherein the inner surface 122 side is the first semi-closed cavity 130 of the shield body, and the shield body is made of a material with high magnetic permeability, namely, the inner surface 122 and the inner surface 121 of the shield body are both made of a material with high magnetic permeability.
The ultrasonic obstacle avoidance radar 110 is arranged in the first semi-closed cavity 130 of the shielding body, and the arrangement direction of the working surface of the ultrasonic obstacle avoidance radar 110 is the same as that of the non-closed surface of the shielding body.
In the present embodiment, the shield has a double-layer hollow structure with a hollow area 123 formed by an inner surface 122 and an outer surface 121. The shield may be integrally formed, or may be formed by multiple parts, which is not particularly limited in the embodiments of the present application. The shape and size of the shield can be set by itself, which is not particularly limited in the embodiment of the present application, for example, the shield may be a cube having a double-layer hollow structure and a non-closed surface, or a sphere having a double-layer hollow structure and a non-closed surface. The non-closing surface may be on any surface of the shield, and the exemplary embodiment is not particularly limited in this regard. The size of the non-closed surface can be set by itself, but it is ensured that the ultrasonic obstacle avoidance radar 110 can normally receive and transmit ultrasonic waves.
The distance between the inner surface 122 and the outer surface 121 may be 1 to 5cm, and the like, and this exemplary embodiment is not particularly limited thereto. The thickness of the inner surface 122 and the outer surface 121 may be 0.8 to 2mm, and the like, which is not particularly limited in the present exemplary embodiment. The high magnetic permeability material forming the inner surface 122 and the outer surface 121 may be, for example, permalloy, iron, or stainless steel, and the like, and this exemplary embodiment is not particularly limited thereto. Because iron or stainless steel is the material of common structure, the low price and processing are convenient, consequently, compare internal surface 122 and surface 121 that other high magnetic permeability materials were made, adopt internal surface 122 and surface 121 that iron or stainless steel made on the basis of guaranteeing the shielding effect to the magnetic field, still have simple, the with low costs of processing technology, the effect of easy volume production.
The hollow area 123 may not be filled with any material, and may also be filled with an insulating foam material to meet the requirements of different scenes.
Further, the wire outlet of the ultrasonic obstacle avoidance radar 110 is arranged on the surface of the shielding body with relatively weak magnetic field interference, so as to avoid that the magnetic field shielding effect is deteriorated due to the wire outlet arranged on the surface with relatively strong magnetic field interference, thereby influencing the normal operation of the ultrasonic obstacle avoidance radar 110. It should be noted that the diameter of the outlet hole may be set by itself, for example, 2cm, and this is not limited in this exemplary embodiment.
In order to protect the shielding body and the ultrasonic obstacle avoidance radar 110 and prolong the service life of the shielding body and the ultrasonic obstacle avoidance radar 110, the magnetic field shielding device based on the ultrasonic obstacle avoidance radar may further include: the housing 140 has a non-closed surface, the housing 140 has a second semi-closed cavity 150, wherein the shielding body and the ultrasonic obstacle avoidance radar 110 are both disposed in the second semi-closed cavity 150 of the housing 140 and fixed on the housing 140, and the non-closed surface of the housing 140 and the non-closed surface of the shielding body where the ultrasonic obstacle avoidance radar is located are disposed in the same direction.
In the embodiment of the present application, since the housing 140 has already been described above, it is not described herein. Since the principle that the shield and the ultrasonic obstacle avoidance radar 110 are disposed in the second semi-closed cavity 150 of the housing 140 and fixed on the housing 140 has been described above, the detailed description thereof is omitted.
In summary, the ultrasonic obstacle avoidance radar 110 is disposed in the first semi-closed cavity 130 of the shielding body having a non-closed surface, the working surface of the ultrasonic obstacle avoidance radar 110 is disposed in the same direction as the non-closed surface, the shielding body is made of a material with high magnetic conductivity, and the material with high magnetic conductivity can absorb the magnetic wave signal to achieve the effect of shielding the magnetic field. In addition, the device only comprises a shielding body with a non-closed surface and a first semi-closed cavity and the ultrasonic obstacle avoidance radar, so that the device is simple in structure, easy to produce in mass and low in production cost. In addition, the shielding body is a double-layer hollow structure which is composed of an inner surface 122 and an outer surface 121 and is provided with a hollow area 123, compared with a single-layer shielding body, the shielding of a magnetic field is divided into two layers, the effect of shielding the strong magnetic field is greatly enhanced, and the condition that the strong magnetic field is shielded by using a thick single-layer shielding body is also avoided.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The utility model provides a magnetic field shield assembly based on barrier radar is kept away to ultrasonic wave, keeps away barrier radar including the ultrasonic wave, its characterized in that still includes:
the shielding body is provided with a non-closed surface and a first semi-closed cavity, and the shielding body is made of a high-permeability material;
the ultrasonic obstacle avoidance radar is arranged in the first semi-closed cavity, and the working surface of the ultrasonic obstacle avoidance radar is arranged in the same direction as the non-closed surface.
2. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to claim 1, wherein the shielding body comprises an inner surface, an outer surface opposite to the inner surface, and a hollow region formed by the inner surface and the outer surface, wherein the inner surface side is a first semi-closed cavity of the shielding body.
3. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to claim 2, wherein a distance between the inner surface and the outer surface is 1-5 cm.
4. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to claim 2, wherein the thickness of the inner surface and the thickness of the outer surface are both 0.8-2 mm.
5. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to claim 2, wherein the hollow area is filled with an insulating foam material.
6. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to any one of claims 1 to 5, further comprising:
the shell is provided with a non-closed surface and a second semi-closed cavity;
the shielding body and the ultrasonic obstacle avoidance radar are arranged in the second semi-closed cavity and fixed on the shell, and the non-closed surface of the shell is the same as the non-closed surface of the shielding body where the ultrasonic obstacle avoidance radar is located.
7. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to any one of claims 1 to 5, wherein an outlet hole of the ultrasonic obstacle avoidance radar is provided on a surface of the shielding body where magnetic field interference is relatively weak.
8. The ultrasonic obstacle avoidance radar-based magnetic field shielding device according to any one of claims 1 to 5, wherein the high permeability material is iron or stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525092.3U CN209842055U (en) | 2019-04-17 | 2019-04-17 | Magnetic field shielding device based on ultrasonic obstacle avoidance radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920525092.3U CN209842055U (en) | 2019-04-17 | 2019-04-17 | Magnetic field shielding device based on ultrasonic obstacle avoidance radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209842055U true CN209842055U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920525092.3U Active CN209842055U (en) | 2019-04-17 | 2019-04-17 | Magnetic field shielding device based on ultrasonic obstacle avoidance radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209842055U (en) |
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2019
- 2019-04-17 CN CN201920525092.3U patent/CN209842055U/en active Active
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