Electrical connection conversion device for photoelectric turret

Abstract

The invention discloses an electrical connection conversion device for a photoelectric turret. The electrical connection conversion device comprises a converter shell fixedly connected to the inner side wall of a pitching frame and at least one electrical connector socket fixedly installed on the side face of the converter shell. Wherein a hollow wiring cavity is formed in the converter shell, and the wiring cavity is used for receiving all cables from the rear end interfaces of the electric connector sockets and physically collecting and arranging the cables in the shell. Cables gathered and led out from the interior of the converter shell naturally gather into a unified cable bundle at the moment of penetrating out of the cable outlet, and the extending direction of the cable bundle is directly aligned with the shaft hole in the pitching frame. Therefore, all cables which need to transmit signals outwards in the optical air-tight cabin serve as a single and compact cable bundle and penetrate out of the single side of the optical air-tight cabin in a concentrated mode.

Description

Technical Field

[0001] This application relates to the field of cable connection technology for optoelectronic equipment, and in particular to an electrical connection conversion device for optoelectronic turrets. Background Technology

[0002] In optoelectronic tracking and reconnaissance equipment, the optoelectronic turret is the core platform for target search, tracking, and identification. Its internal optical sensors are usually sealed in an "optical hermetically sealed chamber," which needs to rotate back and forth within a certain angle range as a pitch load.

[0003] During this process, the signal cables of the in-cabin sensors must pass through the rotating pitch axis system and be reliably transmitted to the stationary parts. To this end, the current mainstream solution in the field is to install a dedicated circular sealed integrated electrical connector in the central through-hole on each side of the pitch axis of the pitch frame. The signal cables are connected to the terminals at both ends of the connector by welding or crimping to achieve signal transmission and cabin sealing.

[0004] However, with the increase in the number of sensors and signal paths, the above-mentioned traditional solutions face many challenges in practical applications. For example, the radial dimensions of the connector and pitch axis are large, which is not conducive to the miniaturization of the equipment; the connector and cable occupy a long axial space in the shaft hole; and during the pitch motion, the cable connection may have reliability problems. Summary of the Invention

[0005] This application provides an electrical connection conversion device for a photoelectric turret, which can solve the problems of poor cable connection reliability, limitations on equipment miniaturization, high cost, and inconvenient maintenance in the prior art. The technical solution is as follows:

[0006] An electrical connection conversion device for an optoelectronic turret, the optoelectronic turret comprising a base frame, a pitch frame rotatably connected to the base frame via trunnions, and a front spherical shell and a rear spherical shell covering the front and rear sides of the pitch frame, the pitch frame, the front spherical shell, and the rear spherical shell together forming an optical gas-tight chamber, the electrical connection conversion device comprising: a converter housing fixedly connected to the inner wall of the pitch frame by fasteners; at least one electrical connector socket fixedly mounted on the side of the converter housing; wherein, a hollow cable routing cavity is formed inside the converter housing, the cable routing cavity being configured to collect cables from each of the electrical connector sockets and guide them to a centralized cable outlet opened on the housing; the cable outlet is positioned opposite the shaft hole on the pitch frame, such that all the collected cables can exit as a cable bundle from one side of the optical gas-tight chamber.

[0007] Optionally, a cable stress isolation mechanism is provided in the wiring cavity inside the converter housing, on the path between the electrical connector socket and the outlet; the cable stress isolation mechanism includes a mounting base fixed on the housing and a wire clamp connected to the mounting base, the wire clamp holding and clamping the gathered cable bundle on the mounting base.

[0008] Optionally, the wire clip is made of copper, engineering plastic or rubber, and has an elongated waist-shaped hole. The wire clip is connected to the mounting base by fasteners passing through the waist-shaped hole.

[0009] Optionally, the electrical connector socket includes a universal rectangular electrical connector with a planar matrix layout, which is mounted to the converter housing by screws.

[0010] Optionally, the extension direction of the terminals of the universal rectangular electrical connector within the converter housing is perpendicular to the shell surface of the front or rear spherical shell.

[0011] Optionally, the outer profile of the converter housing is configured as a narrow, thin, elongated hollow structure that adapts to the remaining space within the optical hermetically sealed chamber defined by the inner wall of the pitch frame and the shape of the adjacent sensor.

[0012] Optionally, the electrical connection conversion device for the photoelectric turret also includes a conductor frame, which includes an annular body and at least two connecting legs extending outward from the annular body, the connecting legs being fixedly connected to the base frame; the central hole of the annular body is coaxially aligned with the shaft hole of the pitch frame.

[0013] Optionally, the converter housing is provided with assembly process holes and machining process holes; the assembly process holes are sealed and connected by assembly process cover plates, and the machining process holes are sealed and connected by machining process cover plates; sealing structures are provided between the mating surfaces of the assembly process cover plates and machining process cover plates and the converter housing, as well as between the connecting surfaces of the converter housing and the pitch frame.

[0014] Optionally, the sealing structure is a clamped shielding rubber pad, and / or a closed annular sealing groove with a shielding sealing rope embedded in it.

[0015] Optionally, the mounting base has a groove structure on the surface opposite to the cable clip for positioning and accommodating the cable bundle.

[0016] The beneficial effects of the technical solutions provided in this application include at least the following:

[0017] An electrical connection conversion device for an optoelectronic turret includes a converter housing fixedly connected to the inner wall of the pitch frame, and at least one electrical connector socket fixedly installed on the side of the converter housing. The converter housing has a hollow cable routing cavity inside, which receives all cables from the rear interfaces of each electrical connector socket and physically gathers and organizes these cables within the housing. The cables gathered and guided from inside the converter housing naturally converge into a unified cable bundle the moment they exit the outlet. This cable bundle extends directly into the shaft hole on the pitch frame, thus eliminating the need for all cables within the optical airtight chamber to transmit signals externally, unlike traditional technologies where cables must exit separately from the shaft holes on both sides. Instead, all cables are gathered together as a single, compact cable bundle and exit from one side of the optical airtight chamber. This technical solution, on the one hand, shifts the connection interface from the difficult-to-construct and space-constrained "inside the shaft hole" to the relatively open and easy-to-operate "inner wall of the frame"; on the other hand, the single-sided centralized cable exit is a significant simplification of the traditional double-sided cable exit structure. Compared with the traditional double-sided solution, it directly reduces a complex shaft hole sealing structure, significantly reduces the complexity of the system and the number of potential leakage points, improves the overall sealing reliability, and simplifies the assembly process; in addition, since the connection device no longer occupies the radial space inside the shaft hole, the inner diameter of the pitch shaft no longer needs to be increased to accommodate the large circular connectors in the existing technology, thus allowing for the design of a thinner pitch shaft, which is of positive significance for the miniaturization and lightweighting of optoelectronic turrets.

[0018] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an assembly diagram of the base frame and pitch frame of the photoelectric turret provided in the embodiments of this application;

[0021] Figure 2 This is an exploded view of the pitch frame, front spherical shell, and rear spherical shell of the photoelectric turret provided in the embodiments of this application;

[0022] Figure 3 This is a schematic diagram of the spatial layout of various photoelectric sensors and the pitch frame in the photoelectric turret provided in the embodiments of this application;

[0023] Figure 4 This is a cross-sectional view of the photoelectric turret provided in the embodiment of this application;

[0024] Figure 5 yes Figure 4 Side view;

[0025] Figure 6 This is a perspective view of the converter housing provided in an embodiment of this application;

[0026] Figure 7 This is a perspective view of the converter housing provided in an embodiment of this application;

[0027] Figure 8 This is a perspective view of the converter housing with the processing cover plate and electrical connector socket removed, as provided in the embodiments of this application;

[0028] Figure 9 This is a schematic diagram showing the cable routing inside the converter housing provided in an embodiment of this application;

[0029] Figure 10 This is a schematic diagram of the line card provided in the embodiments of this application.

[0030] Explanation of reference numerals in the attached figures

[0031] 1-Photoelectric turret; 101-Base frame; 102-Pitch frame; 103-Front spherical shell; 104-Rear spherical shell; 2-Converter housing; 201-Cable routing cavity; 202-Cable outlet; 203-Assembly process hole; 204-Machining process hole; 205-Assembly process cover plate; 206-Machining process cover plate; 3-Electrical connector socket; 4-Cable; 5-Cable stress isolation mechanism; 501-Mounting base; 502-Cable clip; 5021-Oval hole; 6-Wire frame; 601-Annular body; 602-Connecting leg; 7-Shielding sealing rope. Detailed Implementation

[0032] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0033] In this disclosure, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the relative positions of the corresponding components in the direction of gravity when they are in use, and "inner" and "outer" refer to their relative positions to the contours of the corresponding components themselves. Furthermore, the terms "first," "second," etc., used in this disclosure are for distinguishing one element from another and do not have sequential or importance implications. In the following description, when referring to the accompanying drawings, unless otherwise explained, the same reference numerals in different drawings denote the same or similar elements.

[0034] refer to Figures 1 to 5 The photoelectric turret 1 includes a fixed base frame 101, a pitch frame 102 rotatably connected to the base frame 101 via trunnions, and a front spherical shell 103 and a rear spherical shell 104 covering the front and rear sides of the pitch frame 102, which together form a closed optical airtight chamber.

[0035] In existing technology, the method of leading the cable from the optical gas-tight chamber to the base frame 101 involves installing a dedicated circular sealed integrated electrical connector in the central through-hole of the pitch axis on both sides of the pitch frame 102. This connector achieves a tight fit with the inner wall of the shaft hole through its own circular flange and radial sealing ring, thereby mechanically dividing the turret into the optical gas-tight chamber and the external transmission chamber, and relying on the static sealing interface of the connector to ensure the integrity of the gas-tight chamber. The signal cable is connected to the terminals at both ends of the connector by welding or crimping.

[0036] Through in-depth research, the inventors realized that the aforementioned problems did not stem from the design superiority or inferiority of individual components, but rather from the inherent and irreconcilable contradictions inherent in the traditional technical approach of "using circular connectors within the shaft hole":

[0037] 1. Radial Space Conflict and Size Lock-in: The physical shape of a dedicated circular electrical connector dictates that its signal contacts (pins / sockets) can only be distributed circumferentially. To ensure sufficient electrical clearance and creepage distance, the contact spacing cannot be made very small. Therefore, each additional signal almost inevitably leads to an increase in the overall diameter of the connector. This strong coupling relationship between the number of signal paths and the connector diameter is directly transmitted to the mechanical structure, causing the inner and even outer diameters of the pitch axis to be "locked" at a relatively large size, becoming a bottleneck that is difficult to overcome in miniaturizing and lightweighting the optoelectronic turret. 2. Axial Space Competition and Stress Concentration Risk: The space within the axial hole is an extremely limited "channel." The circular connector needs to connect to cables inside and outside the cabin at both ends, which itself occupies a significant axial length. More importantly, the cable's torsion within a limited angle requires a certain bending allowance. The allowance required by the connector body and the cable directly competes for axial space, often forcing the effective torsional length of the cable to be compressed. In this situation, the stress from the repeated torsional loads generated by the pitching motion cannot be gradually released in the long cable, but is highly concentrated at the nearest mechanical weak point, namely the root of the terminals at both ends of the connector. This periodic stress concentration is very likely to cause failure modes such as solder joint cracking and crimping loosening, posing a fundamental hidden danger to the reliability of signal transmission. 3. Rigid Architecture and Systemic Costs: The above-mentioned traditional solutions assume in their architecture that "the rotation isolation interface must coincide with the electrical connection interface within the shaft hole." This results in multiple functions such as airtightness, signal transmission, and stress bearing being highly coupled and implemented in a small space, leading to complex airtightness design, limited space, and difficult maintenance.

[0038] Based on the above analysis, the inventors realized that to fundamentally resolve the contradiction between miniaturization, high reliability, and low cost, it was necessary to break free from the traditional mindset of "solving all problems within the shaft hole." This invention is a solution proposed based on this understanding.

[0039] refer to Figures 1 to 10 This application discloses an electrical connection conversion device for a photoelectric turret 1. The converter housing 2 serves as a rigid load-bearing body and a sealed boundary, and is securely and immovably fixed to the inner wall of the pitch frame 102 by a plurality of fasteners such as screws.

[0040] This choice of fixed position is the cornerstone of the invention, meaning that the device is completely different from the conventional design in which the electrical transfer components are placed in the center hole of the pitch axis, but instead attached to the static inner wall of the rotating optical gas-tight cabin.

[0041] refer to Figures 6 to 9At least one electrical connector socket 3 is fixedly installed on one side of the converter housing 2. These electrical connector sockets 3 are used to directly connect the signal cables 4 of various photoelectric sensors inside the cabin. A hollow, continuous cable routing cavity 201 is designed and machined inside the converter housing 2. The function of this cable routing cavity 201 is to receive all the cables 4 from the rear end interfaces of each electrical connector socket 3 and to physically collect and organize these cables 4 within the housing.

[0042] refer to Figures 3 to 7 In this embodiment, the cable routing cavity 201 has a preset convergence endpoint: a centralized cable outlet 202 opened on the converter housing 2. All cables 4 that converge within the cable routing cavity 201 are ultimately guided to this single cable outlet 202. During the installation planning phase, the spatial position of the cable outlet 202 is precisely set so that it is aligned with a pre-existing shaft hole on the pitch frame 102 after the device is installed in place.

[0043] Through this precise positional correspondence, all the cables 4 that converge and are guided from inside the converter housing 2 naturally coalesce into a unified cable bundle the moment they exit through the outlet 202, and the extension direction of this cable bundle is directly aligned with the shaft hole on the pitch frame 102. The final result is that all the cables 4 that need to transmit signals externally within the optical hermetically sealed cabin no longer need to exit separately from the shaft holes on the left and right sides as in traditional technology; instead, they are all gathered together as a single, compact cable bundle, exiting from one side of the optical hermetically sealed cabin.

[0044] The technical solution of this embodiment has the following beneficial effects: 1. It moves the connection interface from the difficult-to-construct and space-constrained "inside the shaft hole" to the relatively open and easy-to-operate "inner wall of the frame"; 2. Single-sided centralized cable exit is a significant simplification of the traditional double-sided cable exit structure. Single-sided cable exit means that only one location of the cable 4 through-cabin sealing problem needs to be addressed. Compared with the traditional double-sided solution, it directly reduces a complex shaft hole sealing structure, significantly reduces the complexity of the system and the number of potential leakage points, improves the overall sealing reliability, and simplifies the assembly process; 3. It integrates the connection function into an independent converter housing 2, making it a standard, prefabricated functional module. This facilitates independent testing, quality control, and mass production, and also facilitates adaptability design on different models of turrets; 4. Since the connection device no longer occupies the radial space inside the shaft hole, the inner diameter of the pitch shaft no longer needs to be increased to accommodate the large circular connectors in the existing technology, thus allowing for the design of a thinner pitch shaft. This is of positive significance for the miniaturization and lightweighting of the optoelectronic turret 1. It fundamentally breaks the traditional technical prejudice that "increasing the number of signal paths inevitably increases the shaft diameter."

[0045] According to the embodiments of this application, refer to Figure 6 , Figure 9 and Figure 10 Inside the wiring cavity 201 inside the converter housing 2, a cable stress isolation mechanism 5 is provided on the path between the electrical connector socket 3 and the outlet 202.

[0046] In practice, the cable stress isolation mechanism 5 is installed inside the cable routing cavity 201 within the converter housing 2, located on the physical path between the electrical connector socket 3 and the cable outlet 202 of the converter housing 2. This location is the necessary point for the cable 4 to transition from a "static connection" to "dynamic twisting".

[0047] The cable stress isolation mechanism 5 can consist of two parts: one part is a protruding structure directly machined onto the converter housing 2, such as... Figure 8 As shown, this is the mounting base 501. This mounting base 501 is integrally connected to the converter housing 2, becoming a fixed mechanical anchor point in the entire device.

[0048] like Figure 10 As shown, the other part is a separate, detachable cable clip 502, which is detachably connected to the mounting base 501 by fasteners.

[0049] Its working principle is as follows: Multiple cables 4 extending from the rear end of each electrical connector socket 3 are neatly combed within the cable routing cavity 201 and first pass through the space between the mounting base 501 and the cable clip 502. Then, the operator closes or presses the cable clip 502 and locks the fasteners. At this time, the clamping force generated by the cable clip 502 acts on the outer periphery of the gathered cable bundle 4, while the cable clip 502 itself is rigidly connected to the mounting base 501 by the fasteners. Therefore, the entire cable bundle 4 is held and rigidly clamped and fixed to the converter housing 2 at this point. This produces a crucial mechanical effect: it physically divides the entire continuous cable path into two distinct sections. The clamping point is close to the side of the electrical connector socket 3, the connection point of the cable 4 to the socket terminal is very close, and due to rigid fixation, the shape of this section of cable 4 hardly changes with external movement, forming a static connection area. On the other side of the clamping point near the cable outlet 202, the cable bundle 4 is free and redundant in length. It will pass through the shaft hole and undergo periodic twisting as the pitch frame 102 rotates, forming a dynamic twisting region. When the pitch frame 102 drives the converter housing 2 to rotate, the cable 4 in the dynamic twisting region needs to twist and deform to adapt to the movement. The resulting alternating bending stress and torsional stress will be transmitted along the cable 4 to both ends. When these stresses are transmitted to the rigid clamping point, since the cable bundle 4 is firmly locked to the stationary mounting base 501 here, the stress cannot continue to be transmitted to the static connection area, but is effectively blocked, absorbed and dissipated here. The stress is transmitted from the flexible cable 4 to the rigid housing structure, thereby avoiding the stress acting directly on the fragile solder terminals or crimp terminals of the electrical connector socket 3.

[0050] The technical solution of this embodiment has the following beneficial effects: 1. In traditional solutions, fatigue fracture at the root of the terminal block due to direct torsional stress is the main failure. This embodiment introduces a stress isolation mechanism to actively manage the stress path, guiding destructive stress to a robust mechanical structure, thus completely freeing the electrical connection point on the electrical connector socket 3 from the influence of alternating mechanical stress, thereby improving connection reliability by an order of magnitude; 2. The division into a "static connection zone" and a "dynamic torsion zone" clarifies the design objectives. After division, optimization can be performed on the two zones separately: the static zone focuses on electrical performance and sealing; the dynamic zone focuses on the flexibility, wear resistance, and bending life of the cable 4; 3. Stress is restricted to be released in the dynamic zone, and its maximum strain can be theoretically calculated and effectively controlled through parameters such as cable 4 length and torsion angle, making product life prediction and reliability design possible; 4. Once cable 4 wears (most likely in the dynamic torsion zone), repairs can be carried out specifically without disturbing the highly reliable electrical connection in the static zone, reducing repair difficulty and risk.

[0051] According to embodiments of this application, the material of the wire clip 502 can be copper, engineering plastic, or rubber. Copper is relatively soft and has good ductility and conductivity; engineering plastic has high strength, corrosion resistance, and insulation; rubber has excellent elasticity and sealing properties. The structural feature of the wire clip 502 is that it has one or more elongated, slotted holes 5021.

[0052] During installation, the fasteners for connection pass through the oblong hole 5021 on the cable clip 502 and are then screwed into the threaded hole on the mounting base 501. The oblong hole 5021 provides adjustment space along its length. When the diameter of the cable bundles to be clamped is large, the fastener can be moved away from the center of the cable bundles in the oblong hole 5021, thus providing more opening space for the cable clip 502 to accommodate the cable bundles. When the diameter of the cable bundles is small or a greater clamping force is required, the fastener can be moved closer to the center of the cable bundles in the oblong hole 5021, allowing the cable clip 502 to more tightly enclose the cable bundles. During the final tightening of the fasteners, due to the presence of the oblong hole 5021, the cable clip 502 can generate a continuous and uniform radial clamping force on the cable bundles when locking. If the material of the cable clip 502 has a certain degree of elasticity, this self-adaptive clamping effect will be more significant, allowing it to fit tightly against the irregular outer surface of the cable bundles.

[0053] In this embodiment, the design of the oblong hole 5021 provides dimensional tolerance, allowing the same wire clamp 502 to accommodate cable bundles 4 composed of different diameters and quantities of cables 4. This gives the device good versatility and assembly flexibility. Because the oblong hole 5021 is adjustable and lockable, the wire clamp 502 can apply a controllable and uniform radial pressure to the cable bundle 4. Assembly workers do not need to prepare different special clamps for cable bundles of different diameters, nor do they need to calculate the clamping position very precisely in advance; they only need to simply adjust the position of the fastener in the oblong hole 5021 and lock it, reducing assembly difficulty and skill requirements. When temperature changes cause thermal expansion and contraction of the cable 4 material, the fine-tuning margin of the elastic wire clamp 502 or the oblong hole 5021 can compensate for this dimensional change, preventing stress isolation failure due to excessively loose clamping, or long-term pressure damage to the cable 4 due to excessively tight clamping.

[0054] refer to Figure 3 The internal space of the optical airtight chamber is extremely precious. Between the inner wall of the pitch frame 102 and the irregular outer contours of various photoelectric sensors, there are usually only some irregularly shaped and limited spaces. These spaces are mostly characterized by being narrow (limited in the width direction), thin (shallow in the depth direction), and long (may have a certain extension in the height direction), which are typical "narrow and thin areas".

[0055] According to embodiments of this application, such as Figure 3 and Figure 4As shown, the converter housing 2 of this invention is "reverse-designed" based on this specific constraint, and its outer contour is actively constructed into a narrow, thin, flat, and elongated hollow structure that closely matches it. That is, the outer contour of the converter housing 2 is constructed to fit the remaining space within the optical airtight chamber defined by the inner wall of the pitch frame 102 and the shape of adjacent sensors, forming a narrow, thin, flat, and elongated hollow structure. This design concept allows the device to be embedded in previously unusable idle space.

[0056] However, traditional circular electrical connectors are completely inadequate for integrating sufficient electrical interfaces within such a narrow housing. According to embodiments of this application, such as... Figure 6 , Figure 7 and Figure 9 As shown, in order to accommodate the narrow and thin converter housing 2, the electrical connector socket 3 may include a universal rectangular electrical connector with a planar matrix layout, which is mounted on the converter housing 2 by screws.

[0057] The universal rectangular electrical connector can significantly save the minimum required space for the following reasons: 1. The contacts of traditional circular connectors are arranged along the circumference, which is a one-dimensional, curved distribution. Increasing the number of contacts mainly relies on increasing the circumference diameter, resulting in a sharp expansion of the connector's radial dimension. In contrast, the contacts of rectangular connectors are arranged in a row and column matrix on a plane, which is a two-dimensional, planar distribution. Within the same projected area, the number of contacts (i.e., signal density) that can be arranged in a rectangular connector is much higher than that of a circular connector. This makes the rectangular connector and the required installation space significantly smaller than that of a circular connector when meeting the same number of signal paths; 2. The safety distance of a circular connector is basically determined by the arc length on the circumference. The insulator of a rectangular connector can increase the surface creepage distance by setting insulating partitions or grooves between the contacts, thereby meeting the same or even higher safety standards as a circular connector without increasing the planar projected size, and achieving a smaller contact center distance; 3. The flat shape of the rectangular connector naturally fits the mounting surface of the narrow and thin shell of this invention, and its mounting flange can extend into the extra dimension direction, such as the height direction of the converter housing 2, maximizing the use of the connection space. For circular connectors to be installed and sealed in a full circumference, using a non-circular, narrow space would result in a huge waste of space.

[0058] Furthermore, according to embodiments of this application, such as Figure 9 As shown, the extension direction of the terminals of the universal rectangular electrical connector within the converter housing 2 is perpendicular to the surface of the front spherical shell 103 or the rear spherical shell 104. This direction is a natural consequence of the "side-wall mounting" architecture, and is distinctly different from the axial extension of the terminals in traditional shaft-hole mounting. This direction transforms the original axial connection along the shaft hole into a dimension perpendicular to the shaft hole direction, which is of positive significance for the miniaturization and weight reduction of the optoelectronic turret 1.

[0059] According to the embodiments of this application, refer to Figures 3 to 5 The electrical connection conversion device also includes a conductor frame 6, which includes an annular body 601 and at least two connecting legs 602 extending outward from the annular body 601. The connecting legs 602 are fixedly connected to the base frame 101. The central hole of the annular body 601 is coaxially aligned with the shaft hole of the pitch frame 102.

[0060] In this embodiment, the conductor frame 6 can be a separate metal or high-strength engineering plastic component. Its structure consists of two parts: a main body 601 and at least two connecting legs 602 extending radially outward from this main body 601. These connecting legs 602 have mounting holes at their ends. During the assembly of the photoelectric turret 1, the conductor frame 6 is securely fixed to a specific position on the stationary base frame 101 using fasteners via its connecting legs 602, and the geometric axis of the central hole of the main body 601 is coaxially aligned with the axis of the shaft hole on the pitch frame 102 through which the cable 4 passes. Furthermore, a key dimensional constraint is that the inner diameter of the main body 601 is designed to be smaller than the inner diameter of the shaft hole on the pitch frame 102.

[0061] Its working mechanism is as follows: The four bundles of cables, drawn from the outlet 202 of the converter housing 2, first pass through the shaft hole on the pitch frame 102. As it continues to extend outward, it passes through the central hole of the annular body 601 of the conductor frame 6, which is already coaxially aligned and fixed with the shaft hole. Since the inner diameter of the annular body 601 is smaller than the inner diameter of the shaft hole, it plays a role in "gathering" and "preliminarily positioning" the four bundles of cables. After the four bundles of cables pass through the central hole of the annular body 601, its member cables 4 are allowed to spread out and connect to external devices respectively. When the pitch frame 102 drives the converter housing 2 and the root of the four bundles of cables to rotate, the presence of the conductor frame 6 ensures that the torsional movement of the four bundles of cables is restricted and guided within a fixed annular space concentric with the shaft hole, thereby preventing the four bundles of cables from swinging disorderly at the shaft hole outlet, rubbing against the hole edge, or interfering with other components.

[0062] The beneficial effects of the technical solution in this embodiment are as follows: 1. It ensures that the four cable bundles are immediately guided to a certain position after passing through the shaft hole, avoiding continuous scraping against the hole wall; 2. It provides a smooth fixed inner boundary for the torsion of the four cable bundles, preventing sharp bends and ensuring that it works within the allowable bending radius; 3. The fixing frame acts as a "transition piece" from the dynamic shaft hole to the static external device, so that the torsion of the four cable bundles can be attenuated and dissipated in an orderly manner.

[0063] According to the embodiments of this application, refer to Figures 6 to 9Due to the complex structure of the converter housing 2, assembly process holes 203 for facilitating internal wiring and machining process holes 204 for processing the internal cavity are required. Assembly process holes 203 and machining process holes 204 are respectively connected by assembly process cover plates 205 and machining process cover plates 206 via screws for sealing. Sealing structures are provided at all connection interfaces. These sealing structures can be either clamped shielding rubber gaskets that combine sealing and conductivity, or closed annular sealing grooves with embedded shielding sealing ropes 7. These sealing structure designs collectively ensure the airtightness and complete electromagnetic shielding effectiveness of the electrical connection conversion device.

[0064] According to an embodiment of this application, a groove structure can be machined on the surface of the mounting base 501 opposite to the wire clip 502. The groove structure can be a semi-circular groove. During installation, the cables 4 can be placed one by one into the corresponding groove, and then the wire clip 502 is pressed on. After the semi-circular grooves of the mounting base 501 and the wire clip 502 are engaged, each cable 4 is firmly held. This achieves orderly arrangement and management of the cables 4, prevents slippage and wear between the cables, makes the clamping force distribution more uniform, and enhances the stress isolation effect.

[0065] refer to Figures 1 to 10 The working principle of the electrical connection conversion device is explained below with a specific embodiment:

[0066] Step 1: Based on the remaining space measured inside the optical airtight chamber, process a suitable converter housing 2. Press the shielding sealing rope 7 into the closed annular sealing groove on the mounting surface of the converter housing 2, and firmly seal the converter housing 2 to the inner wall of the pitch frame 102 with screws, ensuring that its cable outlet 202 is aligned with the shaft hole of the pitch frame 102.

[0067] Step 2: Install the universal rectangular electrical connector laterally onto the converter housing 2 using screws and shielding rubber pads, so that the socket terminals are naturally perpendicular to the front ball housing 103.

[0068] Step 3: Open the assembly process hole 203 cover and plug the sensor cable 4 from the optical gas-tight chamber into the corresponding socket. Organize the cable 4 in the cable routing cavity 201, bend it and guide it to the cable outlet 202. Place the cable bundle 4 into the mounting base 501 and secure it with the cable clip 502 with the waist-shaped hole 5021.

[0069] Step 4: Install the wire frame 6 on the base frame 101, adjust it so that the center hole of its annular body 601 is coaxial with the shaft hole of the pitch frame 102, and let the 4 bundles of cables passing through the shaft hole pass through the center hole of the annular body 601 and spread out naturally.

[0070] When the pitch frame 102 rotates, the converter housing 2 and the cable 4 in the static connection area rotate synchronously. The cable 4 in the dynamic torsion area reciprocates within the shaft hole, and the resulting stress is absorbed by the housing at the mounting base 501, preventing it from being transmitted to the electrical connector terminals, thus achieving highly reliable signal transmission. The entire device, through comprehensive static sealing and shielding design, ensures the environmental integrity of the optical hermetically sealed chamber.

[0071] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0072] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0073] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. An electrical connection conversion device for a photoelectric turret, the photoelectric turret (1) comprising a base frame (101), a pitch frame (102) rotatably connected to the base frame (101) via trunnions, and a front spherical shell (103) and a rear spherical shell (104) covering the front and rear sides of the pitch frame (102), the pitch frame (102), the front spherical shell (103) and the rear spherical shell (104) together forming an optical gas-tight cabin, characterized in that, The electrical connection conversion device includes: A converter housing (2) is fixedly connected to the inner wall of the pitch frame (102) by fasteners; At least one electrical connector socket (3) is fixedly mounted on the side of the converter housing (2); The converter housing (2) has a hollow cable routing cavity (201) inside. The cable routing cavity (201) is configured to gather the cables (4) from each of the electrical connector sockets (3) and guide them to a centralized cable outlet (202) opened on the housing. The cable outlet (202) is positioned opposite the shaft hole on the pitch frame (102) so that all the gathered cables (4) can be concentrated and exited from one side of the optical hermetically sealed chamber as a cable bundle (4).

2. The electrical connection conversion device as described in claim 1, characterized in that, A cable stress isolation mechanism (5) is provided in the wiring cavity (201) inside the converter housing (2), on the path between the electrical connector socket (3) and the outlet (202). The cable stress isolation mechanism (5) includes a mounting base (501) fixed on the housing and a wire clamp (502) connected to the mounting base (501). The wire clamp (502) holds and clamps the bundle of cables (4) together on the mounting base (501).

3. The electrical connection conversion device as described in claim 2, characterized in that, The wire clip (502) is made of copper, engineering plastic or rubber, and has an elongated waist-shaped hole (5021). The wire clip (502) is connected to the mounting base (501) by fasteners passing through the waist-shaped hole (5021).

4. The electrical connection conversion device as described in claim 1, characterized in that, The electrical connector socket (3) includes a universal rectangular electrical connector with a planar matrix layout, which is mounted on the converter housing (2) by screws.

5. The electrical connection conversion device as described in claim 4, characterized in that, The extension direction of the terminals of the universal rectangular electrical connector within the converter housing (2) is perpendicular to the surface of the front spherical shell (103) or the rear spherical shell (104).

6. The electrical connection conversion device as claimed in claim 1, characterized in that, The outer profile of the converter housing (2) is configured as a narrow, thin, flat, and hollow structure that adapts to the remaining space within the optical airtight chamber defined by the inner wall of the pitch frame (102) and the shape of the adjacent sensor.

7. The electrical connection conversion device as claimed in claim 1, characterized in that, The electrical connection conversion device for the photoelectric turret (1) also includes a conductor frame (6), which includes an annular body (601) and at least two connecting legs (602) extending outward from the annular body (601), the connecting legs (602) being fixedly connected to the base frame (101); the central hole of the annular body (601) is coaxially aligned with the shaft hole of the pitch frame (102).

8. The electrical connection conversion device as claimed in claim 1, characterized in that, Assembly process holes (203) and machining process holes (204) are provided on the converter housing (2). The assembly process hole (203) is sealed and connected by the assembly process cover plate (205), and the machining process hole (204) is sealed and connected by the machining process cover plate (206). A sealing structure is provided between the assembly process cover plate (205) and the processing process cover plate (206) and the mating surface of the converter housing (2), as well as between the converter housing (2) and the pitch frame (102).

9. The electrical connection conversion device as claimed in claim 8, characterized in that, The sealing structure is a sandwiched shielding rubber pad and / or a closed annular sealing groove with a shielding sealing rope (7) embedded in it.

10. The electrical connection conversion device as claimed in claim 2, characterized in that, The mounting base (501) has a groove structure on the surface opposite to the cable clip (502) for positioning and accommodating the cable (4) bundle.

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