Cable connection structure between satellite communication station equipment

Abstract

The invention relates to the technical field of satellite communication station cable connection, in particular to a satellite communication station equipment cable connection structure which comprises a socket, a cable, a sleeve and a sealing piece. A first accommodating cavity is formed in the socket. The cable is provided with a plug, and the plug is inserted into the first accommodating cavity of the socket. The sleeve sleeves the cable and is detachably connected with the socket, and a second accommodating cavity is formed in the sleeve. And the sealing element sleeves the cable and can be accommodated in the first accommodating cavity and the second accommodating cavity. Compared with a sealant sealing mode, the plug and the socket can be disassembled and assembled for many times. And compared with a sintered socket, the device type selection is not limited, and the cost is reduced. Compared with a heat-shrinkable plastic sleeve wrapping protection mode, the waterproof plug has the advantages that the connection part is enveloped by utilizing the compression deformation characteristic of the sleeve and the sealing element, so that the radial and axial waterproof grade and the electromagnetic shielding grade of the connection part are improved, and the protection grade of the connection part of the plug and the socket is ensured to meet the actual requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of cable connection of satellite communication stations, and particularly to a cable connection structure between equipment rooms of satellite communication stations. Background Art

[0002] With the continuous development of electronic information technology, satellite communication stations composed of multiple electronic devices have been widely used in both military and civilian fields. With the increase in the complexity of the electrical system of the communication station, the interconnection cable network between various devices in the system has become an important factor affecting the reliability of the system. While continuously improving the reliability and environmental adaptability of individual devices, the reliability and environmental adaptability of the cable network and cable joints often become important factors affecting the reliable operation of the system.

[0003] On the ground, the layout of each device may be extremely scattered, and the span of the cables connecting the devices is relatively large. At the same time, there is a height difference in the layout of each device, and accumulated water is likely to flow along the cable to the connection between the cable and the device. For the cable itself, it has multiple protective layers, and there is no need to worry about its own environmental protection ability. However, the connection between the plug of the cable and the socket of the device is mostly exposed, so the connection between the plug and the socket often becomes a weak point in protection in actual working conditions. Usually, after the plug and the device socket are connected, protection needs to be added at the connection. Considering that the plug and the device socket need to be disassembled and assembled multiple times, it is not possible to use sealant to seal the connection to increase the protection level of the connection. If a sintered socket is used for the socket, it will also limit the selection of components and increase the cost of the device. Using a heat shrinkable plastic sleeve to cover the connection between the cable and the socket to increase the protection level of the connection cannot achieve the required protection level, and the protection level of this method is greatly affected by the operation process and has discreteness.

[0004] Therefore, how to ensure that the protection level of the connection between the cable plug and the device socket meets the actual requirements has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The present invention provides a cable connection structure between equipment rooms of satellite communication stations to solve the problem of how to ensure that the protection level of the connection between the cable plug and the device socket meets the actual requirements.

[0006] The present invention provides a cable connection structure between equipment rooms of satellite communication stations, including: A socket, which has a first accommodation cavity formed inside; A cable, provided with a plug; the plug is inserted into the first accommodation cavity; A sleeve, sleeved on the cable, detachably connected to the socket, and having a second accommodation cavity formed inside; A seal, sleeved on the cable, and capable of being accommodated in the first accommodation cavity and the second accommodation cavity.

[0007] In some of these embodiments, the seal includes: An outer protective sleeve; A middle protective sleeve, installed inside the outer protective sleeve; An inner protective sleeve, installed inside the middle protective sleeve.

[0008] In some of these embodiments, the middle protective sleeve includes: A first tube body, with a buffer cavity formed inside its side wall; A first water-blocking material, installed inside the buffer cavity.

[0009] In some of these embodiments, there are multiple buffer cavities, evenly distributed circumferentially along the first tube body; every two adjacent buffer cavities communicate with each other; There are multiple first water-blocking materials, correspondingly arranged in the buffer cavities one by one with the multiple buffer cavities.

[0010] In some of these embodiments, the inner protective sleeve includes: A second tube body; A second water-blocking material, arranged inside the side wall of the second tube body.

[0011] In some of these embodiments, the seal further includes: A reinforcing layer, arranged between the outer protective sleeve and the middle protective sleeve.

[0012] In some of these embodiments, the seal includes: A first sealing section, capable of being inserted into a first receiving cavity; A second sealing section, capable of being inserted into a second receiving cavity.

[0013] In some of these embodiments, it further includes: A locking pin, installed on the socket; A locking rod, with a locking hole formed at one end and adapted to the locking pin, and the other end hinged to the sleeve.

[0014] In some of these embodiments, it further includes: A water-blocking pad, arranged between the seal and the sleeve.

[0015] The beneficial effects of the present invention are as follows: The cable connection structure between equipment rooms of the satellite communication station of the present invention is provided with a socket, a cable, a sleeve and a seal. The seal is sleeved on the cable and can slide axially along the cable, and can be accommodated in the first accommodation cavity and the second accommodation cavity. Compared with the sealant sealing form, the plug of the cable and the socket of the equipment can be disassembled and assembled multiple times. Compared with the form of using a sintered socket, it does not limit the device selection and reduces the cost. Compared with the form of using a heat shrinkable plastic sleeve for covering and protection, by using the pressure deformation characteristics of the sleeve and the seal, the connection part is enveloped, improving the radial and axial waterproof grades and electromagnetic shielding grades at the connection between the cable and the socket, effectively solving the EMC problem at the interface, and ensuring that the protection grade at the connection between the plug of the cable and the socket of the equipment meets the actual requirements. At the same time, there is no need to change the existing cable manufacturing process, and no special tools are required for the disassembly and assembly process, which has good operability. The overall structure is simple, effectively controlling the cost, applicable to a variety of complex electrical systems, and having good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of some specific embodiments of a cable connection structure between equipment rooms of a satellite communication station of the present invention; Figure 2 is Figure 1 a side view of the seal in the cable connection structure between equipment rooms of the satellite communication station shown; Figure 3 is Figure 2 a cross-sectional view of the seal along A-A shown; Figure 4 is a schematic structural diagram of some other specific embodiments of a cable connection structure between equipment rooms of a satellite communication station of the present invention.

[0017] In the drawings, 110, socket; 120, cable; 130, sleeve; 140, seal; 141, outer protective sleeve; 142, middle protective sleeve; 1421, first tube body; 14211, buffer cavity; 1422, first water-blocking material; 143, inner protective sleeve; 1431, second tube body; 1432, second water-blocking material; 144, reinforcing layer; 150, locking pin; 160, locking rod; 170, water-blocking pad. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] As described in the background art, on the ground, the layouts of various devices may be extremely scattered, and the spans of the cables connecting the devices are relatively large. At the same time, there are height differences in the layouts of various devices, and it is very likely that accumulated water will flow along the cables to the connection points between the cables and the devices. For the cables, they have multiple protective layers themselves, and there is no need to worry about their own environmental protection capabilities. However, the connection points between the plugs of the cables and the sockets of the devices are mostly exposed. Therefore, the connection points between the plugs and the sockets often become the weak points in protection in actual working conditions. Usually, after the plug and the device socket are connected, protection needs to be added at the connection point. Considering that the plug and the device socket need to be disassembled and assembled multiple times, it is not possible to use sealant to seal the connection point to increase the protection level of the connection point. If a sintered socket is used for the socket, it will limit the selection of components and increase the cost of the device. Using a heat-shrinkable plastic sleeve to cover the connection point between the cable and the socket to increase the protection level of the connection point cannot achieve the required protection level, and the protection level of this method is greatly affected by the operating process and has discreteness. Therefore, how to ensure that the protection level of the connection point between the cable plug and the device socket meets the actual requirements has become a technical problem that needs to be solved urgently by those skilled in the art.

[0020] To solve the above problems, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4, the present invention provides a cable connection structure between equipment rooms of a satellite communication station, including a socket 110, a cable 120, a sleeve 130, and a seal 140. The socket 110 is installed on the equipment. A first receiving cavity is formed inside the socket 110. The cable 120 is provided with a plug. The plug is inserted into the first receiving cavity of the socket 110 so that the socket 110 of the equipment is electrically connected to the plug of the cable 120. The sleeve 130 is slidably sleeved on the cable along the axial direction of the cable 120. The sleeve 130 is detachably connected to the socket 110 so that the sleeve 130 and the socket 110 can be connected and disconnected multiple times. A second receiving cavity is formed inside the sleeve 130. The seal 140 is slidably sleeved on the cable along the axial direction of the cable 120 and can be received in the first receiving cavity and the second receiving cavity. Compared with the sealant sealing form, the plug of the cable 120 and the socket 110 of the equipment can be disassembled and assembled multiple times. Compared with the form of using a sintered socket 110, it does not limit the device selection and reduces the cost. Compared with the form of using a heat-shrinkable plastic sleeve for covering and protecting, by utilizing the pressure-deformation characteristics of the sleeve 130 and the seal 140, the connection part is enveloped, improving the radial and axial waterproof levels and electromagnetic shielding levels at the connection between the plug of the cable 120 and the socket 110 of the equipment, effectively solving the EMC problem at the interface and ensuring that the protection level at the connection between the plug of the cable 120 and the socket 110 of the equipment meets the actual requirements. At the same time, there is no need to change the existing manufacturing process of the cable 120, and no special tools are required during the disassembly and assembly process, which has good operability. The overall structure is simple, effectively controlling the cost, applicable to various complex electrical systems, and having good application prospects.

[0021] Specifically, in the demonstration example, such as Figure 1 , Figure 2 and Figure 3As shown, the seal 140 includes an outer protective sleeve 141, a middle protective sleeve 142, an inner protective sleeve 143 and a reinforcing layer 144. The middle protective sleeve 142 is installed inside the outer protective sleeve 141. The inner protective sleeve 143 is installed inside the middle protective sleeve 142. The outer protective sleeve 141, the middle protective sleeve 142 and the inner protective sleeve 143 cooperate to play a role in water blocking in the radial and axial directions at the connection. At the same time, the middle protective sleeve 142 and the inner protective sleeve 143 also play an electromagnetic shielding role. The reinforcing layer 144 is disposed between the outer protective sleeve 141 and the middle protective sleeve 142. The reinforcing layer 144 is flexible and can provide good mechanical properties. Among them, the material of the reinforcing layer 144 is high-modulus aramid, which has excellent chemical stability and is resistant to acids and alkalis. The material of the outer protective sleeve 141 is high-density polyethylene, which has excellent chemical resistance, electrical insulation, low-temperature resistance and impermeability, completely avoiding the problem of water seepage. The middle protective sleeve 142 includes a first tube body 1421 and a first water-blocking material 1422. A buffer cavity 14211 is formed inside the side wall of the first tube body 1421 to facilitate the deformation of the first tube body 1421. The first water-blocking material 1422 is installed in the buffer cavity 14211. The material of the first tube body 1421 is guiding rubber, which has good electromagnetic shielding properties. The material used for the first water-blocking material 1422 is water-blocking ointment or water-blocking yarn. Both the water-blocking ointment and the water-blocking yarn are active water-blocking materials, which have strong water absorption and high expansion rate, can strongly absorb water, rapidly expand, and block water penetration. The inner protective sleeve 143 includes a second tube body 1431 and a second water-blocking material 1432. The second water-blocking material 1432 is disposed inside the side wall of the second tube body 1431. The material of the second tube body 1431 is guiding rubber, which has good electromagnetic shielding properties. The material used for the second water-blocking material 1432 is water-blocking ointment or water-blocking yarn. Both the water-blocking ointment and the water-blocking yarn are active water-blocking materials, which have strong water absorption and high expansion rate, can strongly absorb water, rapidly expand, and block water penetration.

[0022] Preferably, there are a plurality of buffer cavities 14211, which are evenly distributed along the circumferential direction of the first tube body 1421. Every two adjacent buffer cavities 14211 communicate with each other, and can adaptively adjust the deformation amounts in multiple directions. There are a plurality of first water-blocking materials 1422, which are correspondingly disposed in the buffer cavities 14211 one by one with the plurality of buffer cavities 14211, and the water-blocking function is realized in multiple directions.

[0023] Preferably, there are a plurality of second water-blocking materials 1432, which are evenly distributed along the circumferential direction of the second tube body 1431, and the water-blocking function is realized in multiple directions.

[0024] Preferably, the seal 140 includes a first sealing section and a second sealing section. The first sealing section can be inserted into the first receiving cavity. The second sealing section can be inserted into the second receiving cavity. It should be noted that the first sealing section includes an outer protective sleeve 141, a middle protective sleeve 142, an inner protective sleeve 143 and a reinforcing layer 144. The second sealing section also includes an outer protective sleeve 141, a middle protective sleeve 142, an inner protective sleeve 143 and a reinforcing layer 144. The radial dimension of the first sealing section is smaller than that of the second sealing section. In this way, the sealing performance is further improved.

[0025] Specifically, in the exemplary embodiment, as Figure 4 shown, the cable connection structure between equipment rooms of the satellite communication station further includes a locking pin 150, a locking rod 160 and a water blocking pad 170. The locking pin 150 is fixedly installed on the outer wall of the socket 110. One end of the locking rod 160 is formed with a locking hole adapted to the locking pin 150, and the other end is hinged to the sleeve 130 through a hinge. After the sleeve 130 is connected to the socket 110, the locking rod 160 can be connected to the locking pin 150 to limit the relative rotation of the sleeve 130 with respect to the locking pin 150, further ensuring the sealing performance. The water blocking pad 170 is disposed between the seal 140 and the sleeve 130, and the material is conductive rubber, further improving the waterproof grade and electromagnetic shielding grade in the axial direction of the connection.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0028] In the present invention, unless otherwise clearly specified or limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A cable connection structure between devices in a satellite communication station, characterized in that: include: The socket has a first accommodating cavity formed therein; The cable is provided with a plug; the plug is plugged into the first accommodating cavity; A sleeve, which is sleeved on the cable and detachably connected to the socket, and has a second accommodating cavity formed therein; The sealing member is sleeved on the cable and can be accommodated in the first accommodating cavity and the second accommodating cavity.

2. The cable connection structure between satellite communication station equipment according to claim 1, characterized in that: The sealing member comprises: Outer protective sleeve; A middle protective sleeve, installed in the outer protective sleeve; The inner protective sleeve is installed in the middle protective sleeve.

3. The cable connection structure between satellite communication station equipment according to claim 2, characterized in that: The middle protective sleeve comprises: The first tube body has a buffer cavity formed inside the side wall; The first water-blocking material is installed in the buffer cavity.

4. The cable connection structure between satellite communication station equipment according to claim 3, characterized in that: There are multiple buffer cavities, which are evenly distributed along the circumference of the first tube body; and every two adjacent buffer cavities are connected to each other; The first water-blocking materials are in plurality and are disposed in the buffer cavity in a one-to-one correspondence with the plurality of buffer cavities.

5. The cable connection structure between satellite communication station equipment according to claim 2, characterized in that: The inner protective sleeve comprises: second tube body; The second water-blocking material is arranged inside the side wall of the second tube body.

6. The cable connection structure between satellite communication station equipment according to claim 2, characterized in that: The seal also includes: The reinforcement layer is arranged between the outer protective sleeve and the middle protective sleeve.

7. The cable connection structure between devices in a satellite communication station according to any one of claims 1 to 6, characterized in that: The sealing member comprises: A first sealing section, capable of being inserted into the first accommodating cavity; The second sealing section can be inserted into the second accommodating cavity.

8. The cable connection structure between satellite communication station devices according to any one of claims 1 to 6, characterized in that: Also includes: A locking pin, mounted on the socket; The locking rod has a locking hole matched with the locking pin formed at one end and the other end hinged on the sleeve.

9. The cable connection structure between devices in a satellite communication station according to any one of claims 1 to 6, characterized in that: Also includes: A water-blocking pad is arranged between the sealing member and the sleeve.

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