Water-actuated articulating joint

Abstract

The application provides a water-hinged joint, and belongs to the technical field of electronic equipment thermal design, and specifically comprises a fixed ring, a movable ring and an optical fiber slip ring arranged coaxially, the movable ring is rotatably and sealingly mounted on the fixed ring, the optical fiber slip ring is mounted on the movable ring, the optical fiber slip ring passes through the center holes of the fixed ring and the movable ring, a sealed cavity is formed between the fixed ring and the movable ring, a flow inlet cavity and a flow return cavity are sealingly and spacedly arranged in the cavity, the flow inlet cavity and the flow return cavity are annular structures coaxial with the fixed ring, a flow inlet water inlet and a flow return water outlet are arranged on the fixed ring, a flow outlet water outlet and a flow return water inlet are arranged on the movable ring, the flow inlet water inlet and the flow outlet water outlet are communicated with the flow inlet cavity, and the flow return water outlet and the flow return water inlet are communicated with the flow return cavity. Through the processing scheme, simple and effective rotary connection is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic equipment thermal design, and in particular to a water hinge joint. BACKGROUND

[0002] A new generation of radar adopts an active phased array system, and the T / R components and power modules in the antenna array surface transmit a large amount of power. The compactness of the spatial structure and the increase in heat dissipation result in the fact that traditional air cooling cannot meet the cooling requirements of the radar, and liquid cooling needs to be used to cool the electronic equipment. In addition, in order to expand the radar field of view and realize 360-degree omnidirectional search function, the phased array antenna can be mechanically rotated in the azimuth direction while being electronically scanned, so as to realize half-sphere and three-dimensional space coverage. In this process, the torsional wear of the liquid cooling pipeline connecting the antenna and the base and the cable becomes a difficult point restricting the mechanical scanning movement. Therefore, a water hinge joint with a compact structure suitable for the phased array radar and capable of accommodating the optical fiber cable needs to be designed to solve the contradiction between the liquid cooling system and the radar mechanical scanning, play a rotating connection role, and thus improve the performance of the radar and expand the field of view of the radar.

[0003] The previous water hinge joint is divided into axial and radial structures, has a large volume, and is composed of many parts, resulting in a large starting torque and being generally used for ground equipment. SUMMARY

[0004] Therefore, the present application provides a water hinge joint, which solves the problems in the prior art and realizes simple and effective rotating connection.

[0005] The water hinge joint provided by the present application adopts the following technical scheme:

[0006] A water hinge joint, comprising a fixed ring, a movable ring and an optical fiber slip ring coaxially arranged, the movable ring being rotatably and sealingly mounted on the fixed ring, the optical fiber slip ring being mounted on the movable ring, the optical fiber slip ring penetrating the center holes of the fixed ring and the movable ring, a sealed cavity being formed between the fixed ring and the movable ring, a plurality of spaced and sealed inflow cavities and backflow cavities being arranged in the cavity, the inflow cavities and the backflow cavities being annular structures coaxial with the fixed ring, an inflow water inlet and a backflow water outlet being arranged on the fixed ring, an inflow water outlet and a backflow water inlet being arranged on the movable ring, the inflow water inlet and the inflow water outlet being communicated with the inflow cavities, and the backflow water outlet and the backflow water inlet being communicated with the backflow cavities.

[0007] Optionally, a leakage detection cavity is further arranged between the fixed ring and the movable ring, the leakage detection cavity is an annular structure coaxial with the fixed ring, and a liquid leakage sensor is arranged on the fixed ring and communicated with the leakage detection cavity.

[0008] Optionally, the fixed ring and the shaft are arranged outwardly in sequence with the return fluid cavity, the inlet fluid cavity and the leakage detection cavity, and the return fluid cavity, the inlet fluid cavity and the leakage detection cavity are located in the same plane.

[0009] Optionally, the movable ring is provided with four first annular partitions, the fixed ring is provided with four second annular partitions nested with the first annular partitions, and the cavities between the adjacent two groups of nested first annular partitions and second annular partitions form the return fluid cavity, the inlet fluid cavity and the leakage detection cavity.

[0010] Optionally, a low-compression double-layer sealing ring is arranged between the nested first annular partitions and second annular partitions, and seals the gap between the abutting first annular partitions and second annular partitions.

[0011] Optionally, the outermost second annular partition of the fixed ring wraps the outermost first annular partition of the movable ring.

[0012] Optionally, the fixed ring is provided with a ring sleeve surrounding the movable ring, the movable ring is rotatably mounted on the fixed ring through a bearing, the water-hinge joint further comprises a bearing outer ring pressing plate and a bearing inner ring pressing plate, the bearing outer ring pressing plate fixes the outer ring of the bearing on the fixed ring, and the bearing inner ring pressing plate fixes the inner ring of the bearing on the movable ring.

[0013] Optionally, the bearing is a cross-roller bearing.

[0014] Optionally, the inlet water inlet and the return outlet are arranged on the end face of the fixed ring, and the inlet outlet and the return inlet are arranged on the end face of the movable ring.

[0015] In summary, the present application has the following beneficial technical effects:

[0016] 1. The fixed ring and the movable ring are nested to form two cooling liquid passages and an annular space for detecting leakage, the structure is compact, the low-compression double-layer sealing ring is sealed, the friction and wear between the fixed ring and the movable ring are reduced, the starting torque is reduced and the service life of the sealing ring is improved, a through hole is left in the fixed ring and the movable ring for mounting an optical fiber slip ring.

[0017] 2. The water-hinge joint has the advantages of high reliability, long service life, low flow resistance, leakage prevention and small starting torque, and can be used for the rotary connection of liquid cooling pipelines and optical cable lines in a machine phase radar. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and all the other drawings can be obtained by those of ordinary skill in the art without any creative effort based on the drawings.

[0019] Figure 1 An exploded structural schematic diagram of a water hinge joint of the present application;

[0020] Figure 2 A cross-sectional view of a water hinge joint of the present application;

[0021] Figure 3 Another cross-sectional view of a water hinge joint of the present application.

[0022] Legend: 1, inlet water inlet; 2, liquid leakage sensor; 3, backflow water outlet; 4, fixed ring; 41, ring sleeve; 5, movable ring; 6, bearing; 7, bearing outer ring pressing plate; 8, bearing inner ring pressing plate; 9, water outlet; 10, back inlet; 11, optical fiber slip ring; 12, low compression double-layer sealing ring; 13, inlet fluid cavity; 14, backflow fluid cavity; 15, leakage detection cavity; 16, first partition plate; 17, second partition plate. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below with reference to the drawings.

[0024] The embodiments of the present application are described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The present application can also be implemented or applied by other different specific embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0025] It is to be understood that the embodiments described hereinbelow within the scope of the appended claims. It will be apparent to one of ordinary skill in the art that aspects described herein can be implemented in a wide variety of forms, and that any specific structure and / or function described herein is merely illustrative. An aspect described herein can be implemented alone or in combination with any other aspect(s). Further, the aspects described herein can be implemented using any number of techniques, whether currently available or not. For example, the aspects described herein can be implemented using hardware such as a central processing unit, microprocessor, digital signal processor or hardware with such a processor component, software such as firmware, any

[0026] It is also to be understood that the drawings provided herein are merely schematic and that actual implementation of the present application can differ from the schematic illustrations of the drawings. It is therefore, understood that the present application can be practiced with modification and alteration, and that the

[0027] Moreover, in the following description, specific details are set forth in order to provide a thorough understanding of the examples. However, one skilled in the art will understand that the aspects can be practiced without these specific details.

[0028] The embodiments of the present application provide a water joint.

[0029] As shown in Figure 1 and Figure 2 A water joint, comprising a fixed ring 4, a movable ring 5 and a fiber optic slip ring 11 coaxially arranged, the movable ring 5 is rotatably and sealingly mounted on the fixed ring 4, the fiber optic slip ring 11 is mounted on the movable ring 5, the fiber optic slip ring 11 passes through the center holes of the fixed ring 4 and the movable ring 5, a sealed cavity is formed between the fixed ring 4 and the movable ring 5, a plurality of spaced and sealed fluid inlet cavities 13 and fluid return cavities 14 are arranged in the cavity, the fluid inlet cavities 13 and the fluid return cavities 14 are annular structures coaxial with the fixed ring 4, the fixed ring 4 is provided with a fluid inlet 1 and a fluid outlet 93, the movable ring 5 is provided with a fluid outlet 9 and a fluid inlet, the fluid inlet 1 and the fluid outlet 9 are communicated with the fluid inlet cavities 13, and the fluid outlet 93 and the fluid inlet are communicated with the fluid return cavities 14.

[0030] The inlet 1 and the outlet 93 are arranged on the end surface of the fixed ring 4, and the axial direction of the joint pipe connected with the inlet 1 and the outlet 93 is perpendicular to the end surface of the fixed ring 4. The outlet 9 and the inlet are arranged on the end surface of the movable ring 5, and the axial direction of the joint pipe connected with the outlet 9 and the inlet is perpendicular to the end surface of the movable ring 5. The design of reducing the bending of the pipeline can reduce the resistance of the fluid when passing through the inlet 1, the outlet 93, the outlet 9 and the inlet.

[0031] The fixed ring 4 and the movable ring 5 are further provided with a leakage detection cavity 15, which is coaxial with the fixed ring 4 and has a ring structure. The fixed ring 4 is provided with a liquid leakage sensor 2 connected with the leakage detection cavity 15. Once leakage occurs during rotation, the cooling liquid will enter the reserved cavity for leakage detection, and the liquid sensor will detect the leakage and alarm, thereby realizing the leakage alarm function.

[0032] The fixed ring 4 and the shaft are outwardly provided with the return fluid cavity 14, the inlet fluid cavity 13 and the leakage detection cavity 15 in sequence, and the return fluid cavity 14, the inlet fluid cavity 13 and the leakage detection cavity 15 are located in the same plane.

[0033] In the machine phase radar, the fixed ring 4 of the water hinge joint is fixed with the base or the base which does not rotate, and the movable ring 5 is fixed with the rotating antenna array surface. During operation, the cooling liquid from the base enters the inlet fluid cavity 13 formed by the nesting of the fixed ring 4 and the movable ring 5 through the inlet 1 of the water hinge, and then flows into the liquid cooling flow channel of the antenna array surface from the outlet 9, thereby completing the delivery of the cooling liquid from the base to the antenna. The cooling liquid flows around in the antenna flow channel and absorbs heat, enters the return fluid cavity 14 formed by the nesting of the fixed ring 4 and the movable ring 5 through the return inlet of the water hinge joint, and then flows out from the outlet 93, thereby returning to the base and completing the cooling liquid circuit from the antenna to the base. During this process, the movable ring 5, the outlet 9 and the return inlet of the water hinge joint rotate with the antenna, the three cavities formed by the nesting of the fixed ring 4 and the movable ring 5 do not change, and only the positions of the outlet 9 and the return inlet 10 change.

[0034] The optical fiber slip ring 11 is installed on the central through hole of the water hinge joint, and the rotor part rotates synchronously with the movable ring 5. The whole working process realizes the rotary connection of the liquid cooling pipeline, and integrates the optical fiber slip ring 11 to realize the rotary connection of the optical cable.

[0035] As shown in Figure 3 The movable ring 5 is provided with four first annular partitions, and the fixed ring 4 is provided with four second annular partitions which are nested with the first annular partitions. The cavities between the adjacent two groups of nested first annular partitions and second annular partitions form the return fluid cavity 14, the inlet fluid cavity 13 and the leakage detection cavity 15.

[0036] The low-compression double-layer sealing ring 12 is arranged between the first annular partition and the second annular partition, and seals the gap between the first annular partition and the second annular partition.

[0037] The outermost second annular partition of the stationary ring 4 wraps the outermost first annular partition of the movable ring 5, and other second annular partitions of the stationary ring 4 are located inside other first annular partitions of the movable ring 5.

[0038] The stationary ring 4 is provided with a ring sleeve 41 surrounding the movable ring 5, the movable ring 5 is rotatably arranged on the stationary ring 4 through the bearing 6, the inner ring of the ring sleeve 41 is in interference fit with the outer ring of the bearing 6, and the outer ring of the movable ring 5 is in interference fit with the inner ring of the bearing 6, the bearing 6 assists the relative rotation of the stationary ring 4 and the movable ring 5, and the water-hinged joint further comprises a bearing 6 outer ring pressing plate and a bearing 6 inner ring pressing plate, the bearing 6 outer ring pressing plate is fixed to the stationary ring 4, and the bearing 6 inner ring pressing plate is fixed to the movable ring 5.

[0039] The bearing 6 is a cross-roller bearing 6, so that there is no gap between the movable ring 5 and the stationary ring 4.

[0040] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A water-actuated articulating joint, characterized by, The application relates to a water joint, which comprises coaxially arranged fixed rings, movable rings and optical fiber slip rings, the movable rings are rotatably and sealingly arranged on the fixed rings, the optical fiber slip rings are arranged on the movable rings, the optical fiber slip rings pass through the central holes of the fixed rings and the movable rings, a sealed cavity is formed between the fixed rings and the movable rings, interval-distributed and sealed fluid inlet cavities and fluid return cavities are arranged in the cavity, the fluid inlet cavities and the fluid return cavities are annular structures coaxial with the fixed rings, fluid inlet inlets and fluid return outlets are arranged on the fixed rings, fluid outlet outlets and fluid return inlets are arranged on the movable rings, the fluid inlet inlets and the fluid outlet outlets are communicated with the fluid inlet cavities, and the fluid return outlets and the fluid return inlets are communicated with the fluid return cavities. A leakage detection cavity is further arranged between the fixed rings and the movable rings, the leakage detection cavity is an annular structure coaxial with the fixed rings, and a liquid leakage sensor is arranged on the fixed rings and communicated with the leakage detection cavity. The fluid return cavities, the fluid inlet cavities and the leakage detection cavities are sequentially distributed outward from the fixed rings and the shafts, and the fluid return cavities, the fluid inlet cavities and the leakage detection cavities are located in the same plane. Four first annular partitions are arranged on the movable rings, four second annular partitions are arranged on the fixed rings and nested with the first annular partitions, and the cavities between the first annular partitions and the second annular partitions of two adjacent groups of the first annular partitions and the second annular partitions form the fluid return cavities, the fluid inlet cavities and the leakage detection cavities.

2. The water articulating joint of claim 1, wherein, Low-compression double-layer sealing rings are arranged between the first annular partitions and the second annular partitions which are nested with each other, and the gaps between the first annular partitions and the second annular partitions are sealed.

3. The water articulating joint of claim 1, wherein, The outermost second annular partition of the fixed rings wraps the outermost first annular partition of the movable rings.

4. The water articulating joint of claim 1, wherein, A ring sleeve surrounding the movable rings is arranged on the fixed rings, the movable rings are rotatably arranged on the fixed rings through bearings, the water joint further comprises a bearing outer ring pressing plate and a bearing inner ring pressing plate, the bearing outer ring pressing plate is arranged on the fixed rings and fixes the outer ring of the bearing, and the bearing inner ring pressing plate fixes the inner ring of the bearing on the movable rings.

5. The water articulating joint of claim 4, wherein, The bearing is a cross roller bearing.

6. The water articulating joint of claim 1, wherein, The fluid inlet inlets and the fluid return outlets are arranged on the end faces of the fixed rings, and the fluid outlet outlets and the fluid return inlets are arranged on the end faces of the movable rings.

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