Explosion-proof antenna safety isolator

Abstract

The utility model provides an explosion-proof antenna safety isolator comprising a housing main body, the housing main body comprises a first connector housing part, a second connector housing part, a middle housing part and an explosion-proof threaded housing part, and the first connector housing part and the second connector housing part are respectively arranged at two ends of the middle housing part and the explosion-proof threaded housing part. The four parts 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; a second inner conductor disposed in a second chamber formed by the second connector housing portion; 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 explosion-proof antenna safety isolator, the connector shell, the explosion-proof threads and the shell of the explosion-proof antenna safety isolator main body are processed in an integrated forming mode to form an integrated structure, so that the waterproof and dustproof effects of the explosion-proof 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.

Description

Technical Field

[0001] This utility model relates to an 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 an 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 hazardous energy to areas with hazardous sources, 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 these areas, and the antennas can be removed or installed while energized. This greatly facilitates the installation and maintenance of wireless equipment in hazardous areas, thereby 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. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention proposes an explosion-proof antenna safety isolator. This isolator provides an intrinsically safe signal output for wireless signal applications in hazardous areas, ensuring the safe use of wireless signals in such environments. Simultaneously, structural optimization results in a smaller size and lighter weight, along with improved waterproof and dustproof performance. The addition of explosion-proof threads allows for installation on the outside of an explosion-proof enclosure, reducing the space required inside the explosion-proof communication equipment housing and thus significantly reducing the size and weight of the housing.

[0004] To achieve the above objectives, the 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, and an explosion-proof threaded housing portion. The first connector housing portion and the second connector housing portion are respectively located at both ends of the intermediate housing portion and the explosion-proof threaded housing portion, and the four 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; 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, and the third 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 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 and a second insulator are respectively provided in the first chamber and the second chamber. The first insulator is located between the first inner conductor and the first connector housing and the explosion-proof threaded housing, and the second insulator is located between the second inner conductor and the second connector 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, the explosion-proof antenna safety isolator of this invention is integrally molded with the connector housing, the explosion-proof threaded surface, and the main body of the explosion-proof antenna safety isolator, forming a single structure. This eliminates the connection interface between the connector, the explosion-proof threaded surface, and the main body of the explosion-proof antenna safety isolator in traditional technologies, avoiding the problem of water leakage at this interface and improving the waterproof performance of the 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 saving costs for the integration of explosion-proof communication systems. Finally, the explosion-proof antenna safety isolator of this invention has a sealing ring between the round cover and the main body of the housing, further improving the waterproof and dustproof effect of the entire explosion-proof antenna safety isolator. 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 explosion-proof antenna safety isolator of this utility model.

[0012] In the figure: 100-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. 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 1 As shown, the 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 explosion-proof antenna safety isolator 100.

[0015] The outer casing 1 includes a first connector outer casing 11, a second connector outer casing 12, an intermediate outer casing 13, and an explosion-proof threaded outer casing 14. The first connector outer casing 11 and the second connector outer casing 12 are located at opposite ends of the intermediate outer casing 13 and the explosion-proof threaded outer casing 14, respectively, and are integrally formed into a single structure. Specifically, in this embodiment, the intermediate outer casing 13 is box-shaped, and the first connector outer casing 11, the second connector outer casing 12, and the explosion-proof threaded outer casing 14 are hollow, centrally rotating bodies.

[0016] First chambers 110 are formed in the first connector housing portion 11 and the explosion-proof threaded housing portion 14, respectively, and a second chamber 120 is formed in the second connector housing portion 12. The first chamber 110 and the second chamber 120 are used to accommodate the components constituting the connector.

[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] 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.

[0020] The first chamber 110 and the second chamber 120 are located at opposite ends of the third chamber 130 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 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.

[0021] 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 1 to prevent water from entering the third chamber 130 from the contact surface between the round cover 2 and the outer shell body 1, thus providing a waterproof function. Specifically, two grooves are formed on the outer surface of the outer shell body 1, and the first sealing ring 21 and the second sealing ring 22 are respectively installed in the grooves. The round cover 2, the middle outer shell part 13, and the internal circuit assembly 131 constitute the main body of the explosion-proof antenna safety isolator, realizing the connection between the two connectors and the transmission of signals.

[0022] The assembly process of the explosion-proof antenna safety isolator 100 of this utility model is as follows:

[0023] (1) Provide an outer shell body 1 obtained by one-piece molding;

[0024] (2) Assemble the first insulator 112 and the second insulator 122 into the first connector housing portion 11 and the second connector housing portion 12;

[0025] (3) Install the first inner conductor 111 and the second inner conductor 121 into the first insulator 112 and the second insulator 122 respectively;

[0026] (4) Solder the first inner conductor 111 and the second inner conductor 121 to the circuit assembly 131 and apply glue 132;

[0027] (5) Place the first sealing ring 21 and the first sealing ring 22 in the slot of the middle outer shell 13, and fix the round cover 2 to the middle outer shell 13.

[0028] like Figure 1 As shown, it illustrates the application of the explosion-proof antenna safety isolator of this invention 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.

[0029] In addition to the radio frequency interface described in this application, the 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.

[0030] 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.

[0031] Figure 1 This is a schematic diagram of the explosion-proof antenna safety isolator of this utility model.

Claims

1. A safety isolator for explosion-proof antennas (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), and an explosion-proof threaded outer shell part (14). The first connector outer shell part (11) and the second connector outer shell part (12) are located at the two ends of the intermediate outer shell part (13) and the explosion-proof threaded outer shell part (14), and the four 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 within the second cavity (120) formed in the second connector housing portion (12); 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 explosion-proof antenna safety isolator (100) as described in claim 1, characterized in that, The first chamber (110), the second chamber (120) and the third chamber (130) 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) to the third chamber (130).

3. The 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.

4. The explosion-proof antenna safety isolator (100) as described in claim 2, characterized in that, A first insulator (112) and a second insulator (122) are respectively provided in the first chamber (110) and the second chamber (120). 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).

5. The 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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