Electromagnetic leakage emission shielding device

Abstract

The utility model belongs to the technical field of shielding devices, and particularly relates to an electromagnetic leakage emission shielding device which comprises a base, the top of the base is fixedly connected with an inner shielding cover, the top of the base is fixedly connected with an outer shielding cover, the outer wall of the inner shielding cover is provided with a sealing device, and the sealing device comprises a fixing block. The side face of the fixing block is fixedly connected to the outer wall of the inner shielding cover, the side face of the fixing block is fixedly connected to a fixing ring, the bottom of the fixing ring is fixedly connected to a telescopic rod, the end, away from the fixing ring, of the telescopic rod is fixedly connected to a pressing ring, and the top of the base is fixedly connected to a rubber sealing ring. The shielding device solves the problem that the shielding device is difficult to prevent moisture and dust from entering the shielding device through a gap between the inner shielding case and the outer shielding case, so that a circuit is short-circuited or corroded due to moisture or dust, and the shielding effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shielding devices, and in particular relates to an electromagnetic leakage emission shielding device. Background Art

[0002] The electromagnetic leakage emission shielding device is a device used to prevent accidental leakage of electromagnetic signals in equipment or systems. It is usually made of metal or alloy materials and can effectively absorb or reflect electromagnetic radiation to prevent it from interfering with the external environment or other equipment.

[0003] Patent announcement number CN117794213B discloses an electromagnetic shielding device for electronic equipment, including a base, an inner shielding cover, an outer shielding cover and a magnetic leakage indication component, wherein the inner shielding cover is fixed on the base, the outer shielding cover is fixed on the base, the inner shielding cover is located inside the outer shielding cover, and the magnetic leakage indication component is arranged above the base. The invention specifically provides an electromagnetic shielding device for electronic equipment that can monitor electromagnetic radiation leakage in real time and indicate whether the magnetic radiation leakage comes from internal equipment or the outside world.

[0004] However, the shielding device currently has the following problems: it is difficult to prevent moisture and dust from entering the inside of the shielding device through the gap between the inner shielding cover and the outer shielding cover, thereby causing the circuit to be affected by moisture or dust, resulting in short circuit or corrosion. Therefore, we propose an electromagnetic leakage emission shielding device. Utility Model Content

[0005] The purpose of the utility model is to provide an electromagnetic leakage emission shielding device, which can solve the problem in the related art that the shielding device is difficult to prevent moisture and dust from entering the inside of the shielding device through the gap between the inner shielding cover and the outer shielding cover, thereby causing the circuit to be affected by moisture or dust, resulting in short circuit or corrosion.

[0006] The technical solution adopted by the utility model is as follows:

[0007] An electromagnetic leakage emission shielding device comprises a base, the top of the base is fixedly connected to an inner shielding cover, the top of the base is fixedly connected to an outer shielding cover, the outer wall of the inner shielding cover is provided with a sealing device, the sealing device comprises a fixed block, the side of the fixed block is fixedly connected to the outer wall of the inner shielding cover, the side of the fixed block is fixedly connected to a fixing ring, the bottom of the fixing ring is fixedly connected to a telescopic rod, the end of the telescopic rod away from the fixing ring is fixedly connected to a pressure ring, the top of the base is fixedly connected to a rubber sealing ring, and a spring is provided between the pressure ring and the fixing ring.

[0008] The inner shielding cover is located inside the outer shielding cover, and a gap is arranged between the inner shielding cover and the outer shielding cover.

[0009] The bottom of the rubber sealing ring contacts the bottom of the pressure ring, and the rubber sealing ring is located between the inner shielding cover and the outer shielding cover.

[0010] A dehumidification device is arranged on the top of the inner shielding cover, and the dehumidification device includes a motor, the bottom of the motor is fixedly connected to the top of the inner shielding cover, the output shaft of the motor is fixedly connected to a rotating shaft, a plurality of connecting rods are fixedly connected to the circumferential surface of the rotating shaft, a plurality of connecting rods are fixedly connected to the same rotating ring at one end away from the rotating shaft, a plurality of scraping blocks are fixedly connected to the bottom of the rotating ring, and a dehumidification ring is fixedly connected to the top of the fixed ring.

[0011] The top of the dehumidification ring contacts the bottoms of a plurality of scraping blocks, and gaps are arranged between a plurality of the connecting rods and the inner shielding cover.

[0012] Gaps are arranged between a plurality of the scraping blocks and the outer shielding cover, and gaps are arranged between a plurality of the scraping blocks and the inner shielding cover.

[0013] The technical effects achieved by the utility model are:

[0014] The utility model sets a sealing device so that the rubber sealing ring, the inner shielding cover and the outer shielding cover cooperate with each other, so that the rubber sealing ring can seal the gap between the inner shielding cover and the outer shielding cover, thereby effectively preventing moisture and dust from entering the inside of the shielding device through the gap between the inner shielding cover and the outer shielding cover; at the same time, through the cooperation of the pressure ring, the rubber sealing ring and the spring, the pressure ring squeezes the rubber sealing ring through the elastic force of the spring, so that the rubber sealing ring is deformed along the gap between the inner shielding cover and the outer shielding cover, thereby strengthening the sealing of the rubber sealing ring between the inner shielding cover and the outer shielding cover.

[0015] The utility model, through the setting of the dehumidification device, makes the cooperation between the dehumidification ring and the rubber sealing ring so that the dehumidification ring can absorb the moisture around the rubber sealing ring, thereby avoiding the problem of aging, hardening or surface deterioration of the rubber sealing ring due to the invasion of water, thereby reducing the sealing effect; at the same time, through the cooperation of the motor, the rotating shaft, the connecting rod, the rotating ring and the scraper block, the rotation of the rotating shaft can drive the connecting rod to rotate, the rotation of the connecting rod can drive the rotating ring to rotate, the rotation of the rotating ring can drive the scraper block to rotate on the surface of the dehumidification ring, and the rotation of the scraper block can avoid the problem of hardening of the dehumidification ring and reducing the dehumidification effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the utility model as a whole;

[0017] Figure 2 It is a schematic diagram of a side section of the utility model;

[0018] Figure 3It is a schematic diagram of the sealing device structure of the utility model;

[0019] Figure 4 This utility model Figure 3 Schematic diagram of the structure at A in the middle;

[0020] Figure 5 It is a schematic diagram of the structure of the dehumidification device of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Base; 2. Inner shielding cover; 3. Outer shielding cover; 4. Sealing device; 5. Dehumidification device; 41. Fixed block; 42. Fixed ring; 43. Telescopic rod; 44. Pressing ring; 45. Rubber sealing ring; 46. Spring; 51. Motor; 52. Rotating shaft; 53. Connecting rod; 54. Rotating ring; 55. Scraping block; 56. Dehumidification ring. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0024] like Figure 1-5 As shown, an electromagnetic leakage emission shielding device comprises a base 1, an inner shielding cover 2 is fixedly connected to the top of the base 1, an outer shielding cover 3 is fixedly connected to the top of the base 1, a sealing device 4 is arranged on the outer wall of the inner shielding cover 2, the sealing device 4 comprises a fixing block 41, a side of the fixing block 41 is fixedly connected to the outer wall of the inner shielding cover 2, a fixing ring 42 is fixedly connected to the side of the fixing block 41, a telescopic rod 43 is fixedly connected to the bottom of the fixing ring 42, a pressing ring 44 is fixedly connected to one end of the telescopic rod 43 away from the fixing ring 42, the pressing ring 44 will squeeze a rubber sealing ring 45 through the elastic force of a spring 46, so that the rubber sealing ring 45 is deformed along the gap between the inner shielding cover 2 and the outer shielding cover 3, a rubber sealing ring 45 is fixedly connected to the top of the base 1, the rubber sealing ring 45 will seal the gap between the inner shielding cover 2 and the outer shielding cover 3, so as to effectively prevent moisture and dust from entering the inside of the shielding device through the gap between the inner shielding cover 2 and the outer shielding cover 3, and a spring 46 is arranged between the pressing ring 44 and the fixing ring 42;

[0025] The inner shielding cover 2 is located inside the outer shielding cover 3, and a gap is provided between the inner shielding cover 2 and the outer shielding cover 3. The setting of the gap can ensure that the rubber sealing ring 45 can be placed between the inner shielding cover 2 and the outer shielding cover 3;

[0026] The bottom of the rubber sealing ring 45 contacts the bottom of the pressure ring 44, and the rubber sealing ring 45 is located between the inner shielding cover 2 and the outer shielding cover 3;

[0027] According to the above structure, when the inner shielding cover 2 and the outer shielding cover 3 are fixed to the base 1, the rubber sealing ring 45 will seal the gap between the inner shielding cover 2 and the outer shielding cover 3, thereby effectively preventing moisture and dust from entering the inside of the shielding device through the gap between the inner shielding cover 2 and the outer shielding cover 3; at the same time, the pressure ring 44 will squeeze the rubber sealing ring 45 through the elastic force of the spring 46, so that the rubber sealing ring 45 will deform along the gap between the inner shielding cover 2 and the outer shielding cover 3, thereby strengthening the sealing of the rubber sealing ring 45 between the inner shielding cover 2 and the outer shielding cover 3.

[0028] like Figure 1-5 As shown, a dehumidification device 5 is provided at the top of the inner shielding cover 2, and the dehumidification device 5 includes a motor 51, the bottom of the motor 51 is fixedly connected to the top of the inner shielding cover 2, the output shaft of the motor 51 is fixedly connected to a rotating shaft 52, and the circumferential surface of the rotating shaft 52 is fixedly connected to a plurality of connecting rods 53, the rotation of the output shaft of the motor 51 will cause the rotating shaft 52 to rotate, and the rotation of the rotating shaft 52 will drive the connecting rods 53 to rotate, and the ends of the plurality of connecting rods 53 away from the rotating shaft 52 are fixedly connected to the same rotating ring 54, and the bottom of the rotating ring 54 is fixedly connected to a plurality of scraping blocks 55, and the rotation of the rotating ring 54 will drive the scraping blocks 55 to rotate on the surface of the dehumidification ring 56, and the top of the fixed ring 42 is fixedly connected to a dehumidification ring 56, and the dehumidification ring 56 will absorb moisture around the rubber sealing ring 45;

[0029] The top of the dehumidification ring 56 contacts the bottom of the plurality of scraping blocks 55, and a gap is provided between the plurality of connecting rods 53 and the inner shielding cover 2, and the setting of the gap can prevent the connecting rods 53 from causing wear to the inner shielding cover 2 when rotating;

[0030] Gaps are provided between a plurality of scraping blocks 55 and the outer shield 3, and gaps are provided between a plurality of scraping blocks 55 and the inner shield 2. Such surface scraping blocks 55 cause wear to the outer shield 3 and the inner shield 2.

[0031] According to the above structure, the dehumidification ring 56 will absorb moisture around the rubber sealing ring 45, thereby preventing the rubber sealing ring 45 from aging, hardening or surface deterioration due to the intrusion of moisture, thereby reducing the sealing effect; at the same time, the motor 51 is started, and the rotation of the output shaft of the motor 51 will cause the rotating shaft 52 to rotate, and the rotation of the rotating shaft 52 will drive the connecting rod 53 to rotate, and the rotation of the connecting rod 53 will drive the rotating ring 54 to rotate, and the rotation of the rotating ring 54 will drive the scraper block 55 to rotate on the surface of the dehumidification ring 56. The rotation of the scraper block 55 can prevent the dehumidification ring 56 from becoming hardened and reducing the dehumidification effect.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. An electromagnetic leakage emission shielding device, comprising a base (1), an inner shielding cover (2) fixedly connected to the top of the base (1), and an outer shielding cover (3) fixedly connected to the top of the base (1), characterized in that: The outer wall of the inner shielding cover (2) is provided with a sealing device (4), and the sealing device (4) comprises a fixing block (41), the side of the fixing block (41) is fixedly connected to the outer wall of the inner shielding cover (2), the side of the fixing block (41) is fixedly connected to a fixing ring (42), the bottom of the fixing ring (42) is fixedly connected to a telescopic rod (43), one end of the telescopic rod (43) away from the fixing ring (42) is fixedly connected to a pressure ring (44), the top of the base (1) is fixedly connected to a rubber sealing ring (45), and a spring (46) is provided between the pressure ring (44) and the fixing ring (42).

2. The electromagnetic leakage emission shielding device according to claim 1, characterized in that: The inner shielding cover (2) is located inside the outer shielding cover (3), and a gap is provided between the inner shielding cover (2) and the outer shielding cover (3).

3. The electromagnetic leakage emission shielding device according to claim 2, characterized in that: The bottom of the rubber sealing ring (45) contacts the bottom of the pressure ring (44), and the rubber sealing ring (45) is located between the inner shielding cover (2) and the outer shielding cover (3).

4. The electromagnetic leakage emission shielding device according to claim 3, characterized in that: A dehumidification device (5) is arranged on the top of the inner shielding cover (2), and the dehumidification device (5) comprises a motor (51). The bottom of the motor (51) is fixedly connected to the top of the inner shielding cover (2), the output shaft of the motor (51) is fixedly connected to a rotating shaft (52), the circumferential surface of the rotating shaft (52) is fixedly connected to a plurality of connecting rods (53), the ends of the plurality of connecting rods (53) away from the rotating shaft (52) are fixedly connected to the same rotating ring (54), the bottom of the rotating ring (54) is fixedly connected to a plurality of scraping blocks (55), and the top of the fixed ring (42) is fixedly connected to a dehumidification ring (56).

5. The electromagnetic leakage emission shielding device according to claim 4, characterized in that: The top of the dehumidification ring (56) contacts the bottoms of a plurality of scraping blocks (55), and a gap is provided between the plurality of connecting rods (53) and the inner shielding cover (2).

6. The electromagnetic leakage emission shielding device according to claim 5, characterized in that: Gaps are provided between a plurality of the scraping blocks (55) and the outer shielding cover (3), and gaps are provided between a plurality of the scraping blocks (55) and the inner shielding cover (2).

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