Reverberation chamber cavity structure with uniform magnetic field

Abstract

The utility model discloses a reverberation chamber cavity structure with a uniform magnetic field, which comprises a reverberation chamber body, an inner metal keel is arranged on the outer wall of the reverberation chamber body, one end of the bottom of the inner metal keel is connected with an outer metal keel, and one end of the inner metal keel, which is opposite to the outer metal keel, is connected with a metal shielding plate in a clamping way. The multiple first fixing plates are combined into an integrated structure through the arranged first connecting plates, the multiple second fixing plates are combined into an integrated structure through the arranged second connecting plates, and the inner metal keel and the outer metal keel are combined into a whole through the arranged third connecting plates. And a gap is formed between the opposite ends of the inner metal keel and the outer metal keel, so that the metal shielding plate can be quickly mounted to shield the reverberation chamber body, and the influence of external conditions on the interior of the reverberation chamber body is avoided.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic compatibility testing, in particular to a reverberation chamber cavity structure with uniform magnetic field. Background Art

[0002] The reverberation chamber cavity is a shielded chamber composed of highly conductive reflective walls, which is used to detect whether the equipment or system operates in accordance with the requirements in its electromagnetic environment and does not cause intolerable electromagnetic interference to any equipment in its environment.

[0003] After the successful preparation of new energy vehicle parts, staff are required to conduct magnetic field anti-interference tests on them to detect whether the automobile parts comply with national regulations. However, the existing reverberation chamber cavity has problems such as poor magnetic field uniformity and poor electromagnetic shielding effect, which leads to deviations in the anti-interference experiments of automobile parts.

[0004] Therefore, it is necessary to provide a reverberation chamber cavity structure with a uniform magnetic field to solve the above technical problems. Utility Model Content

[0005] The purpose of the utility model is to provide a reverberation chamber cavity structure with uniform magnetic field, so as to solve the problems of poor magnetic field uniformity and poor electromagnetic shielding effect in the existing reverberation chamber cavity in the above-mentioned background technology, which leads to deviations in anti-interference experiments on automobile parts. The technical solution of the utility model aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a reverberation chamber cavity structure with a uniform magnetic field, comprising a reverberation chamber body, an inner metal keel is installed on the outer wall of the reverberation chamber body, one end of the bottom of the inner metal keel is connected to an outer metal keel, and a metal shielding plate is snap-connected to the end of the inner metal keel opposite to the outer metal keel.

[0007] Preferably, the reverberation chamber body includes a wooden board arranged on the outside, a sliding door is provided on one side of the front end surface of the wooden board, and a metal reflective plate is installed on the inner side of the wooden board.

[0008] Preferably, the inner metal keel includes first fixing plates which are equidistantly installed vertically, and first connecting plates are equidistantly arranged at opposite ends of the first fixing plates from top to bottom for connection.

[0009] Preferably, a limiting groove is provided at one end of the first fixing plate facing the wooden board, and a limiting plate fixed to the outer side of the wooden board is arranged inside the limiting groove.

[0010] Preferably, the outer metal keel includes second fixing plates installed vertically at equal intervals, and the opposite end of the second fixing plate is connected with second connecting plates arranged at equal intervals from top to bottom, and the bottom of one end of the second fixing plate toward the first fixing plate is connected with a third connecting plate.

[0011] Preferably, the inner side of the metal reflective plate has a wavy structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model can open the cavity structure of the reverberation chamber through the sliding door to place the components to be tested inside, and then the magnetic field inside the cavity structure of the reverberation chamber is reflected multiple times by the metal reflection plate, thereby enhancing the magnetic field strength and reducing the cost of the magnetic field transmitting equipment;

[0014] The utility model combines a plurality of first fixing plates into an integrated structure through the first connecting plate, and a plurality of second fixing plates into an integrated structure through the second connecting plate, and an inner metal keel and an outer metal keel are combined into one body through the third connecting plate, and a gap is formed at the opposite ends of the inner metal keel and the outer metal keel so that the metal shielding plate can be quickly installed to shield the reverberation chamber body, thereby preventing the external conditions from affecting the interior of the reverberation chamber body;

[0015] The utility model makes the surface of the inner cavity of the entire reverberation chamber body smoother by arranging the wooden board, and the inner side of the arranged metal reflection plate has a wavy structure which can not only strengthen the internal reflection of electromagnetic waves but also make it easier to form a uniform magnetic field in the working area of ​​the reverberation chamber body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 It is a top view schematic diagram of the connection between the inner metal keel and the outer metal keel of the utility model.

[0019] In the figure: 1. reverberation chamber body; 101. wooden board; 102. sliding door; 103. metal reflector; 2. inner metal keel; 201. first fixing plate; 202. first connecting plate; 3. outer metal keel; 301. second fixing plate; 302. second connecting plate; 4. metal shielding plate; 5. limit groove; 6. limit plate; 7. third connecting plate. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The following is an explanation of the embodiments of the present utility model based on the overall structure of the present utility model.

[0022] See also Figure 1-3 A reverberation chamber cavity structure with uniform magnetic field includes a reverberation chamber body 1, an inner metal keel 2 is installed on the outer wall of the reverberation chamber body 1, one end of the bottom of the inner metal keel 2 is connected to an outer metal keel 3, and a metal shielding plate 4 is snap-connected to the opposite end of the inner metal keel 2 and the outer metal keel 3.

[0023] like Figure 1-3 As shown, the reverberation chamber body 1 includes a wooden board 101 arranged on the outside, a sliding door 102 is opened on one side of the front end surface of the wooden board 101, and a metal reflector 103 is installed on the inner side of the wooden board 101. The reverberation chamber cavity structure can be opened through the sliding door 102 to place the components to be detected inside, and then the magnetic field inside the reverberation chamber cavity structure is reflected multiple times by the metal reflector 103, so as to enhance the magnetic field strength and reduce the cost of the magnetic field transmitting equipment. The metal reflector 103 is installed on the inner side of the sliding door 102 and combined with the metal reflector 103 on the inner side of the wooden board 101, and the metal reflector 103 can be fixed to the inner side of the wooden board 101 by bolts.

[0024] like Figure 1-3 As shown, the inner metal keel 2 includes first fixing plates 201 installed vertically at equal intervals, and first connecting plates 202 are evenly arranged from top to bottom at the opposite end of the first fixing plates 201 for connection, and multiple first fixing plates 201 are combined into an integrated structure through the arranged first connecting plates 202.

[0025] like Figure 1-3 As shown, a limiting groove 5 is opened at one end of the first fixing plate 201 toward the wooden board 101, and a limiting plate 6 fixed to the outside of the wooden board 101 is arranged inside the limiting groove 5. The wooden board 101 can be installed and fixed on the inner side of the first fixing plate 201 through the setting of the limiting groove 5 and the limiting plate 6.

[0026] like Figure 1-3 As shown, the outer metal keel 3 includes second fixing plates 301 installed vertically at equal intervals, and the opposite end of the second fixing plate 301 is equidistantly provided with second connecting plates 302 from top to bottom for connection, and the bottom of the end of the second fixing plate 301 facing the first fixing plate 201 is connected by a third connecting plate 7, and the plurality of second fixing plates 301 are formed into an integrated structure by the second connecting plate 302, and the inner metal keel 2 and the outer metal keel 3 are combined into one by the third connecting plate 7, and a gap is formed at the opposite end of the inner metal keel 2 and the outer metal keel 3 so that the metal shielding plate 4 can be quickly installed to shield the reverberation chamber body 1, so as to prevent the external conditions from affecting the inside of the reverberation chamber body 1.

[0027] like Figure 1-3 As shown, the inner side of the metal reflector 103 is in a wavy structure. The wavy structure of the inner side of the metal reflector 103 can not only enhance the internal reflection of electromagnetic waves, but also make it easier to form a uniform magnetic field in the working area of ​​the reverberation chamber body 1.

[0028] Working principle: When in use, the reverberation chamber cavity structure can be opened through the sliding door 102 to place the parts to be tested inside, and then the magnetic field inside the reverberation chamber cavity structure can be reflected multiple times by the metal reflector 103, so as to enhance the magnetic field strength and reduce the cost of the magnetic field transmitting equipment. The inner side of the sliding door 102 is installed with a metal reflector 103, which is combined with the metal reflector 103 on the inner side of the wooden board 101. The metal reflector 103 can be fixed to the inner side of the wooden board 101 by bolts, and the multiple first fixing plates 201 are combined into one by the first connecting plate 202. The structure is optimized, and the plurality of second fixing plates 301 are integrated into an integrated structure by the second connecting plate 302, and the inner metal keel 2 and the outer metal keel 3 are combined into one by the third connecting plate 7, and a gap is formed at the opposite ends of the inner metal keel 2 and the outer metal keel 3 so that the metal shielding plate 4 can be quickly installed to shield the reverberation chamber body 1, thereby preventing the external conditions from affecting the interior of the reverberation chamber body 1. The inner side of the metal reflective plate 103 is in a wavy structure, which can not only enhance the internal reflection of electromagnetic waves, but also make it easier to form a uniform magnetic field in the working area of ​​the reverberation chamber body 1.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A reverberation chamber cavity structure with uniform magnetic field, comprising a reverberation chamber body (1), characterized in that: An inner metal keel (2) is installed on the outer wall of the reverberation chamber body (1); one end of the bottom of the inner metal keel (2) is connected to an outer metal keel (3); and a metal shielding plate (4) is snap-connected to the end of the inner metal keel (2) opposite to the outer metal keel (3).

2. The reverberation chamber cavity structure with uniform magnetic field according to claim 1, characterized in that: The reverberation chamber body (1) comprises a wooden board (101) arranged on the outside, a sliding door (102) is provided on one side of the front end surface of the wooden board (101), and a metal reflection plate (103) is installed on the inside of the wooden board (101).

3. The reverberation chamber cavity structure with uniform magnetic field according to claim 2, characterized in that: The inner metal keel (2) comprises first fixing plates (201) which are equidistantly installed vertically, and first connecting plates (202) are equidistantly arranged from top to bottom at opposite ends of the first fixing plates (201) for connection.

4. The reverberation chamber cavity structure with uniform magnetic field according to claim 3, characterized in that: A limiting groove (5) is provided at one end of the first fixing plate (201) facing the wooden board (101), and a limiting plate (6) fixed to the outside of the wooden board (101) is arranged inside the limiting groove (5).

5. The reverberation chamber cavity structure with uniform magnetic field according to claim 4, characterized in that: The outer metal keel (3) comprises second fixing plates (301) which are equidistantly installed vertically, and second connecting plates (302) are equidistantly arranged from top to bottom at opposite ends of the second fixing plates (301) for connection, and a third connecting plate (7) is arranged at the bottom of one end of the second fixing plate (301) facing the first fixing plate (201) for connection.

6. The reverberation chamber cavity structure with uniform magnetic field according to claim 5, characterized in that: The inner side of the metal reflective plate (103) has a wave structure.

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