Lightning-proof and explosion-proof antenna safety isolator

Abstract

The utility model provides an anti-thunder and anti-explosion antenna safety isolator comprising a housing main body which comprises a first connector housing part, a second connector housing part, an anti-thunder housing part, a middle housing part and an anti-explosion thread housing part. The first connector shell part and the second connector shell part are respectively positioned at two ends of the flame-proof threaded shell part, the middle shell part and the lightning protection shell part, and the first connector shell part, the flame-proof threaded shell part, the middle shell part and the lightning protection shell part are of an integrated structure; the first inner conductor is arranged in a first cavity formed by the first connector shell part and the explosion-proof threaded shell part; the second inner conductor is arranged in a second cavity formed by the second connector shell part and a fourth cavity formed by the lightning protection shell part; the circuit assembly is installed in a third cavity formed by the middle shell part, and the first inner conductor and the second inner conductor are electrically connected with the circuit assembly; and the round cover is fixedly connected with the shell main body. According to the anti-thunder and anti-explosion antenna safety isolator, the main connector shell, the explosion-proof threads and the shell of the anti-thunder and anti-explosion antenna safety isolator main body are integrally formed to form an integrated structure, so that the waterproof, dustproof and anti-thunder effects of the anti-thunder and anti-explosion antenna safety isolator are improved. The explosion-proof communication equipment shell is additionally provided with the explosion-proof threads, so that the explosion-proof communication equipment shell can be mounted outside the explosion-proof shell, the requirement on the internal space of the explosion-proof communication equipment shell is reduced, and the volume and the weight of the explosion-proof communication equipment shell can be greatly reduced. According to the lightning-protection and explosion-proof antenna safety isolator device, intrinsic safety type signal output, explosion-proof threads and radio frequency lightning protection are integrated, the safety performance is improved, the application field of the lightning-protection and explosion-proof antenna safety isolator device is widened, and compared with independent design, the overall radio frequency parameter performance is improved.

Description

Technical Field

[0001] This utility model relates to a lightning protection and explosion-proof antenna safety isolator, belonging to the field of explosion-proof communication equipment. Background Technology

[0002] With the continuous advancement of science and technology and the continuous improvement of productivity, communication technology is ubiquitous in people's daily lives and industrial production. In areas with hazardous sources such as oil, coal, natural gas, and chemicals, the demand for wireless communication technology is increasing. To address the issue of wireless signal energy safety, we propose a lightning-proof and explosion-proof antenna safety isolator. This isolator provides an intrinsically safe signal output for wireless signals. In the event of a fault in radio transmission or reception, it forms an isolation circuit to block the output of dangerous energy to hazardous areas, ensuring the safe use of wireless signals in such areas. Furthermore, it allows for the installation and use of a wide range of passive antennas in hazardous areas, and the antennas can be removed or installed while energized, greatly facilitating the installation and maintenance of wireless equipment in these areas and reducing the costs of system integration, implementation, and maintenance. In the integration of explosion-proof communication systems, the problem of insufficient internal space within the explosion-proof enclosure is often encountered. Since the explosion-proof antenna safety isolator can be installed outside the explosion-proof enclosure without occupying internal space, it effectively solves this problem. Outdoor areas with hazardous sources are often accompanied by thunderstorms. In order to protect electronic equipment installed in such areas from electromagnetic interference and lightning strikes, lightning protection and explosion-proof antenna safety isolators are equipped with lightning protection functions. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model proposes a lightning and explosion-proof antenna safety isolator, which provides an intrinsically safe signal output for the application of wireless signals in areas with hazardous sources. It also has lightning protection capabilities, ensuring the safe use of wireless signals in areas with hazardous sources. At the same time, structural optimization makes it smaller and lighter, and provides better waterproof, dustproof and lightning protection.

[0004] To achieve the above objectives, the lightning protection and explosion-proof antenna safety isolator of this utility model includes: a housing body, which includes a first connector housing portion, a second connector housing portion, an intermediate housing portion, an explosion-proof threaded housing portion, and a lightning protection housing portion. The first connector housing portion and the second connector housing portion are respectively located at the two ends of the intermediate housing portion, the explosion-proof threaded housing portion, and the lightning protection housing portion, and the first connector housing portion, the intermediate housing portion, the explosion-proof threaded housing portion, and the lightning protection housing portion are integrated into one structure; a first inner conductor, which is disposed in a first cavity formed by the first connector housing portion and the explosion-proof threaded housing portion; a second inner conductor, which is disposed in a second cavity formed by the second connector housing portion and a fourth cavity formed by the lightning protection housing portion; a circuit assembly, which is installed in a third cavity formed by the intermediate housing portion, and the first inner conductor and the second inner conductor are electrically connected to the circuit assembly; and a round cover, which is fixedly connected to the housing body.

[0005] In one embodiment, the first chamber, the second chamber, the third chamber, and the fourth chamber are connected together, the first inner conductor extends from the first chamber to the third chamber, and the second inner conductor extends from the second chamber through the fourth chamber to the third chamber.

[0006] In one embodiment, the first inner conductor and the second inner conductor are respectively connected to the two ends of the circuit assembly by welding and then potted with adhesive.

[0007] In one embodiment, a first insulator, a second insulator, and a third insulator are respectively provided in the first chamber, the second chamber, and the fourth chamber. The first insulator is located between the first inner conductor and the first connector housing and the explosion-proof threaded housing, the second insulator is located between the second inner conductor and the second connector housing, and the third insulator is located between the second inner conductor and the lightning protection housing.

[0008] In one embodiment, a first sealing ring and a second sealing ring are provided between the lower surface of the dome and the upper surface of the outer shell body.

[0009] First, this utility model's lightning and explosion-proof antenna safety isolator integrates the main connector housing, the explosion-proof threaded surface, and the main body housing of the lightning and explosion-proof antenna safety isolator into a single integrated structure. This eliminates the connection interface between the connector, the explosion-proof threaded surface, and the main body of the lightning and explosion-proof antenna safety isolator in traditional technologies, avoiding the problem of water leakage at this interface and improving the waterproof performance of the lightning and explosion-proof antenna safety isolator. Second, due to the addition of the explosion-proof threaded surface, it can be directly connected and installed with the explosion-proof housing, greatly saving space inside the explosion-proof housing, thereby reducing the volume and weight of the explosion-proof housing and facilitating the integration of explosion-proof communication systems. First, it saves costs. Second, the sealing ring between the round cover and the main body of the lightning protection and explosion-proof antenna safety isolator further improves the waterproof and dustproof effect of the entire lightning protection and explosion-proof antenna safety isolator. Third, the lightning protection and explosion-proof antenna safety isolator device of this utility model adds lightning protection devices to protect it and the signal source equipment from electromagnetic interference and lightning strikes, and can cope with application scenarios with thunderstorms. Finally, the lightning protection and explosion-proof antenna safety isolator device integrates intrinsically safe signal output and radio frequency lightning protection into one design, improves its safety performance, expands its application field, and improves the overall radio frequency parameter performance compared with independent designs. Attached Figure Description

[0010] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0011] Figure 1 This is a schematic diagram of the lightning protection and explosion-proof antenna safety isolator of this utility model.

[0012] In the diagram: 100-Lightning and explosion-proof antenna safety isolator; 1-Outer shell body; 11-First connector outer shell; 111-First inner conductor; 112-First insulator; 12-Second connector outer shell; 121-Second inner conductor; 122-Second insulator; 13-Intermediate outer shell; 131-Circuit assembly; 132-Potting; 2-Round cover; 21-First sealing ring; 22-Second sealing ring; 14-Explosion-proof threaded outer shell; 15-Lightning protection outer shell; 151-Lightning protection device; 152-Screw; 153-Third insulator. Detailed Implementation

[0013] The technical solution of this utility model will be more clearly and completely explained below with reference to the accompanying drawings and through the description of the preferred embodiments of this utility model.

[0014] like Figure 1As shown, the lightning protection and explosion-proof antenna safety isolator 100 of the preferred embodiment of this utility model includes a housing body 1 and a round cover 2. The round cover 2 is fixedly connected to the housing body 1, thereby forming the external structure of the lightning protection and explosion-proof antenna safety isolator 100.

[0015] The outer shell body 1 includes a first connector outer shell portion 11, a second connector outer shell portion 12, an intermediate outer shell portion 13, an explosion-proof threaded outer shell portion 14, and a lightning protection outer shell portion 15. The first connector outer shell portion 11 and the second connector outer shell portion 12 are located at opposite ends of the intermediate outer shell portion 13, the explosion-proof threaded outer shell portion 14, and the lightning protection outer shell portion 15, respectively. These four components are integrally formed, forming a single-piece structure. Specifically, in this embodiment, the intermediate outer shell portion 13 is box-shaped, while the first connector outer shell portion 11, the second connector outer shell portion 12, the explosion-proof threaded outer shell portion 14, and the lightning protection outer shell portion 15 are hollow, centrally rotating bodies.

[0016] A first chamber 110 is formed in the first connector housing portion 11 and the explosion-proof threaded housing portion 14, a second chamber 120 is formed in the second connector housing portion 12, and a fourth chamber 140 is formed in the lightning protection housing portion 15. The first chamber 110 and the second chamber 120 are used to accommodate the components constituting the connector, and the fourth chamber 140 is used to accommodate the lightning protection device.

[0017] Specifically, a first inner conductor 111 and a first insulator 112 are installed in the first chamber 110. The first insulator 112 is located between the first inner conductor 111 and the first connector housing portion 11 and the explosion-proof threaded housing portion 14. The first connector housing portion 11, the first inner conductor 111, the first insulator 112 and the explosion-proof threaded housing portion 14 constitute the first connector.

[0018] Similarly, a second inner conductor 121 and a second insulator 122 are installed in the second chamber 120, with the second insulator 122 located between the second inner conductor 121 and the second connector housing portion 12. The second connector housing portion 12, the second inner conductor 121, and the second insulator 122 constitute the second connector.

[0019] The second inner conductor 121 and the third insulator 143 are installed in the fourth chamber 140. The third insulator 153 is located between the second inner conductor 121 and the lightning protection housing 15. A lightning arrester 151 is installed inside and fixed with screws 152.

[0020] A third chamber 130 is formed inside the middle outer shell 13, and a circuit assembly 131 is installed and potted with glue 132 inside the third chamber 130.

[0021] The first chamber 110 and the second chamber 120 are located at opposite ends of the third chamber 130 and the fourth chamber 140, respectively, and are connected to the third chamber 130. The first inner conductor 111 located in the first chamber 110 and the second inner conductor 121 located in the second chamber 120 and the fourth chamber 140, respectively, both extend into the third chamber 130 and are electrically connected to the circuit assembly 131. Preferably, the first inner conductor 111 and the second inner conductor 121 are connected to the two ends of the circuit assembly 131 by soldering. In other embodiments, other connection methods may be used, and soldering is not the only option.

[0022] A first sealing ring 21 and a second sealing ring 22 are provided between the round cover 2 and the upper surface of the outer shell body to prevent water from entering the third chamber 130 and the fourth chamber 140 from the contact surface between the round cover 2 and the upper surface of the outer shell body, thus providing a waterproof function. Specifically, a groove is formed on the outer surface of the intermediate outer shell part 13 and the second connector outer shell part 12, and the first sealing ring 21 and the second sealing ring 22 are respectively installed in the groove. The round cover 2, the intermediate outer shell part 13, the internal circuit assembly 131, the lightning protection outer shell part 15, and the internal lightning protection device constitute the main body of the lightning protection and explosion-proof antenna safety isolator, realizing the connection between the two connectors and the transmission of signals.

[0023] The assembly process of the lightning protection and explosion-proof antenna safety isolator 100 of this utility model is as follows:

[0024] (1) A housing body 1 obtained by integral molding is provided, and a second connector housing part 12 is provided;

[0025] (2) Assemble the first insulator 112, the second insulator 122 and the third insulator 153 into the first connector housing 11, the second connector housing 12 and the lightning protection housing;

[0026] (3) The first inner conductor 111 is installed into the first insulator 112, and the second inner conductor 121 is installed into the second insulator 122 and the third insulator 153. At the same time, the second connector housing 12 is also fixed to the main body of the housing body 1.

[0027] (4) Solder the first inner conductor 111 and the second inner conductor 121 to the circuit assembly 131 and apply glue 132;

[0028] (5) Place the lightning protection device 151 into the lightning protection housing 15 and fix it with screws 152;

[0029] (6) Place the first sealing ring 21 and the first sealing ring 22 in the slots of the intermediate housing part 13 and the second connector housing part 12, and fix the round cover 2 to the intermediate housing part 13 and the lightning protection housing part 15.

[0030] like Figure 1 As shown, it illustrates the application of the lightning protection and explosion-proof antenna safety isolator of this utility model in the interface transition between the female head SMA-K of the SMA type connector and the female head NF of the N type connector, which is the preferred embodiment described above.

[0031] In addition to the radio frequency interface described in this application, the lightning protection and explosion-proof antenna safety isolator of this utility model can also be used for switching between other radio frequency interfaces, which will not be listed here.

[0032] The above-described specific embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Various modifications, substitutions, and improvements made by those skilled in the art to the technical solutions of the present invention based on the provided textual description and drawings, without departing from the design concept and spirit of the present invention, should all fall within the scope of protection of the present invention. The scope of protection of the present invention is determined by the claims.

[0033] Figure 1 This is a schematic diagram of the lightning protection and explosion-proof antenna safety isolator of this utility model.

Claims

1. A lightning protection and explosion-proof antenna safety isolator (100), characterized in that, include: The outer shell body (1) includes a first connector outer shell part (11), a second connector outer shell part (12), an intermediate outer shell part (13), an explosion-proof threaded outer shell part (14), and a lightning protection outer shell part (15). The first connector outer shell part (11) and the second connector outer shell part (12) are located at the two ends of the explosion-proof threaded outer shell part (14), the intermediate outer shell part (13), and the lightning protection outer shell part (15), respectively. The first connector outer shell part (11), the intermediate outer shell part (13), the explosion-proof threaded outer shell part (14), and the lightning protection outer shell part (15) are integrated into one structure. The first inner conductor (111) is disposed in the first cavity (110) formed by the first connector housing portion (11) and the explosion-proof threaded housing portion (14); The second inner conductor (121) is disposed in the second cavity (120) formed by the second connector housing portion (12) and the fourth cavity (140) formed by the lightning protection housing portion (15); A circuit assembly (131) is installed in a third chamber (130) formed by the intermediate housing portion (13), and the first inner conductor (111) and the second inner conductor (121) are electrically connected to the circuit assembly (131). Round cover (2), which is fixedly connected to the outer shell body (1).

2. The lightning protection and explosion-proof antenna safety isolator (100) as described in claim 1, characterized in that, The first chamber (110), the second chamber (120), the third chamber (130) and the fourth chamber (140) are connected. The first inner conductor (111) extends from the first chamber (110) to the third chamber (130), and the second inner conductor (121) extends from the second chamber (120) through the fourth chamber (140) to the third chamber (130).

3. The lightning protection and explosion-proof antenna safety isolator (100) as described in claim 2, characterized in that, The first inner conductor (111) and the second inner conductor (121) are respectively connected to the two ends of the circuit assembly (131) by welding and then potted with glue (132).

4. The lightning protection and explosion-proof antenna safety isolator (100) as described in claim 2, characterized in that, The first chamber (110), the second chamber (120) and the fourth chamber (140) are respectively provided with a first insulator (112), a second insulator (122) and a third insulator (153). The first insulator (112) is located between the first inner conductor (111) and the first connector housing (11) and the explosion-proof threaded housing (14). The second insulator (122) is located between the second inner conductor (121) and the second connector housing (12). The third insulator (153) is located between the second inner conductor (121) and the lightning protection housing (15).

5. The lightning protection and explosion-proof antenna safety isolator (100) as described in claim 1, characterized in that, A first sealing ring (21) and a second sealing ring (22) are provided between the lower surface of the round cover (2) and the upper surface of the outer shell body (1).

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