Photoelectric cable connecting structure

Abstract

The utility model relates to the field of photoelectric communication, and discloses a photoelectric cable connecting structure, which comprises a cylinder body, a first step surface, a second step surface and a connecting piece, and is characterized in that the cylinder body is provided with a through hole penetrating along the axial direction; the connecting sleeve is sleeved with the barrel, one end of the connecting sleeve is connected with the optical fiber piece, the other end of the connecting sleeve is connected with the fixing piece, the fixing piece abuts against the near-end end face of the barrel, and the optical fiber piece abuts against the first step face in the barrel so that the barrel and the optical fiber piece can be locked; and the cable penetrates out of the through hole in the cylinder body. In the embodiment of the invention, the optical fiber part is fixed on the cylinder body through the connecting sleeve, the through hole is formed in the cylinder body to be connected with the cable, and the optical fiber part and the cable are fixedly connected on the cylinder body, so that the cooperation of photoelectric signals is realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of photoelectric communication, in particular to a photoelectric cable connection structure. BACKGROUND

[0002] When a laser instrument (for example, a laser treatment instrument) is used, the execution end (for example, a hand tool in the laser treatment instrument) of the laser instrument needs to be connected with both an electrical signal and an optical signal, that is, both a cable line and an optical fiber line need to be connected. In the related art, the connection interfaces of the cable and the optical fiber are separately arranged, and in use, the cable needs to be repeatedly inserted, and during the insertion of the cable, misinsertion and missed insertion may occur, which causes inconvenience in the use of the laser instrument and a risk of laser light leakage. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a photoelectric cable connection structure, which can at least solve the problems of misinsertion and missed insertion caused by the separate arrangement of the cable and the optical fiber interface.

[0004] In a first aspect, the present application provides a photoelectric cable connection structure, comprising: a barrel, the barrel having a through hole penetrating in an axial direction, and the barrel having a first stepped surface inside; a connecting sleeve, the barrel being sleeved on the connecting sleeve, one end of the connecting sleeve being connected with an optical fiber piece, the other end of the connecting sleeve being connected with a fixing piece, the fixing piece being in abutment with a proximal end surface of the barrel, and the optical fiber piece being in abutment with the first stepped surface inside the barrel to lock the barrel and the optical fiber piece; and a cable, the cable being led out from the through hole on the barrel.

[0005] In some embodiments of the present application, the connecting sleeve has a first threaded segment and a second threaded segment, the first threaded segment being threadedly connected with the optical fiber piece, and the second threaded segment being threadedly connected with the fixing piece; and / or, the opening at the distal end of the barrel is polygonal in shape, and the opening at the distal end of the barrel is used for clamping the optical fiber piece; and / or, the photoelectric cable connection structure further comprises a positioning part, the positioning part being located on the proximal end surface of the barrel, and the positioning part being used for positioning when connected with a cable interface.

[0006] In some embodiments of the present application, the photoelectric cable connection structure further comprises a circuit member, the circuit member being connected on the proximal end surface of the barrel, the circuit member being used for contacting a cable interface to connect an electrical signal, and the circuit member being closed into a ring in a circumferential direction.

[0007] In some embodiments of the present application, the photoelectric cable connection structure further comprises a connecting housing, the connecting housing being sleeved on the outside of the barrel, the connecting housing being at least partially insulated, and the connecting housing being used for connecting with the cable interface.

[0008] In some embodiments of the present application, the connecting shell has a second step surface, the barrel has a third step surface, and the second step surface abuts against the third step surface to press the cable interface and the circuit component.

[0009] In some embodiments of the present application, the connecting shell has an internal thread, and the connecting shell is screwed with the cable interface.

[0010] In some embodiments of the present application, the photoelectric cable connection structure further comprises a light filtering assembly for calibrating the divergence angle of the optical fiber.

[0011] In some embodiments of the present application, the light filtering assembly comprises a plurality of connecting sleeves, a lens, and a protective member, and the connecting sleeve is connected with the light filtering assembly through the plurality of connecting sleeves.

[0012] In some embodiments of the present application, the connecting sleeve has an internal thread, and the connecting sleeve is screwed with the connecting sleeve.

[0013] In some embodiments of the present application, the connecting sleeve has a fourth step surface, and the fourth step surface of the connecting sleeve abuts against the lens; and / or, the protective member has a coating film, and the protective member is used for protecting the optical fiber.

[0014] Advantages of the present application:

[0015] The optical fiber is firmly fixed in the barrel by the connecting sleeve and the fixing member. On the one hand, the interface of the optical fiber can be protected, and on the other hand, the adverse effects on the operator caused by the light leakage at the interface of the optical fiber can be avoided. Secondly, the first step surface is arranged in the barrel, which can limit the optical fiber and also serve as a force receiving surface when pressing the components, so as to realize the stable connection between the barrel, the fixing member, and the optical fiber. Meanwhile, the connecting sleeve, the fixing member, and the barrel are used to connect the components, which can simplify the connection steps, and the components can be respectively machined and assembled, which is convenient for production and transportation.

[0016] In addition, the through hole is arranged on the barrel to pass through the cable, at this time, the cable and the optical fiber are connected to the barrel at the same time, and only the barrel needs to be connected with the optical signal and the electrical signal, so as to realize the cooperative communication of the optical and electrical signals. Further, the optical fiber is located inside the barrel, and the electrical signal is located in the through hole outside the barrel, so that the channels are separated when the two communicate, and interference between them is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. The drawings provided herein are intended to illustrate the general manner of construction and should not be construed as limiting the application.

[0018] In the drawings:

[0019] Figure 1 Structural schematic diagram of the optical and electrical cable connection structure disclosed for some embodiments of the application;

[0020] Figure 2 Structural schematic diagram of the optical and electrical cable connection structure disclosed for some embodiments of the application;

[0021] Figure 3 Exploded view of the optical and electrical cable connection structure disclosed for some embodiments of the application;

[0022] Figure 4 Structural schematic diagram of the barrel disclosed for some embodiments of the application;

[0023] Figure 5 Another structural schematic diagram of the barrel disclosed for some embodiments of the application;

[0024] Figure 6 Structural schematic diagram of the barrel disclosed for some embodiments of the application;

[0025] Figure 7 Structural schematic diagram of the barrel proximal end face disclosed for some embodiments of the application.

[0026] BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 100 - barrel, 200 - connecting sleeve, 300 - optical fiber piece, 400 - connecting housing, 500 - optical filter assembly,

[0028] 110 - through hole, 120 - first step surface, 130 - opening, 140 - positioning portion, 150 - circuit member, 160 - third step surface,

[0029] 210 - fixing piece, 220 - first threaded section, 230 - second threaded section, 240 - fourth step surface,

[0030] 410 - second step surface, 510 - connecting piece, 520 - lens, 530 - protection piece. DETAILED DESCRIPTION

[0031] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely below in combination with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0032] In order to facilitate the understanding of the embodiments provided by the present application, the related technologies thereof will be introduced below in combination with application scenarios.

[0033] In the use of laser equipment, it is often necessary to connect electrical signals and optical signals at the same time, but the interfaces of the two signals are set separately. The inventor finds that in the specific operation process, problems of missing insertion or wrong insertion often occur, thereby causing unnecessary use risks and failures.

[0034] In view of this, the present application proposes an optical and electrical cable connection structure, which will be described below in combination with Figures 1-7 The technical solutions disclosed by each embodiment of the present application will be described.

[0035] As shown in Figure 2 The optical fiber cable connection structure in the present application includes a barrel 100, and a through hole 110 penetrating the axial direction of the barrel 100 is formed on the barrel 100, which is used to pass through the cable.

[0036] Specifically, the number of through holes 110 and the size of openings 130 are matched with the number and diameter of the cables to be passed through. For example, if the diameter of the cable is much smaller than the diameter of the through hole 110, multiple cables can be passed through one through hole 110. For example, one cable is passed through each through hole 110, and the number of cables is consistent with the number of through holes 110.

[0037] In some embodiments, the through holes 110 can be centrally arranged on one side of the barrel 100, or can be uniformly distributed around the barrel 100, and no limitation is made thereto.

[0038] In the embodiments of the present application, as Figure 2 , 3As shown, one end of the connecting sleeve 200 is connected with the optical fiber 300, the sleeve body 100 is sleeved outside the connecting sleeve 200 until the first step surface 120 inside the sleeve body 100 abuts against the optical fiber 300. At this time, the other end of the connecting sleeve 200 protrudes from the end surface of the proximal end of the sleeve body 100, and then the part of the connecting sleeve 200 protruding from the end surface of the proximal end of the sleeve body 100 is fixed by the fixing member 210, so as to fix the connecting sleeve 200 and the optical fiber 300 inside the sleeve body 100. Since the optical fiber 300 abuts against the first step surface 120, the optical fiber 300 is pushed towards the proximal end of the sleeve body 100, and the fixing member 210 is pressed against the end surface of the proximal end of the sleeve body 100 at the other end of the connecting sleeve 200, so as to realize the stable connection between the optical fiber 300, the connecting sleeve 200, the fixing member 210 and the sleeve body 100.

[0039] Specifically, the connecting sleeve 200 can be connected with the optical fiber 300 and the fixing member 210 in various ways, such as interference fit, cementing, etc.

[0040] Further, the cable passing through the through hole 110 can be connected with the optical fiber 300 in various ways, such as winding, gluing, etc., so as to make the photoelectric cable cooperate and avoid the cable from shaking or winding with other components. Exemplarily, the cable can be further wrapped with adhesive tape to form protection.

[0041] In the embodiment of the present application, one end of the connecting sleeve 200 is connected with the optical fiber 300, the connecting sleeve 200 is inserted into the sleeve body 100, the other end of the connecting sleeve 200 protrudes from the end surface of the proximal end of the sleeve body 100 and is connected with the fixing member 210, so as to firmly fix the optical fiber 300 inside the sleeve body 100. On the one hand, the connecting interface of the optical fiber 300 with the sleeve body 100 is arranged inside the sleeve body 100, which can protect the connecting interface and avoid the influence of external force on the connection stability, and can also reduce the risk of light leakage when the connection between the optical fiber 300 and the sleeve body 100 fails. Further, since the first step surface 120 is arranged inside the sleeve body 100, the first step surface 120 limits the position of the optical fiber 300 inside the sleeve body 100, so as to avoid the deviation of the optical fiber 300 and the connecting sleeve 200 inside the sleeve body 100. In addition, the first step surface 120 can also be used as a stress surface for pressing the sleeve body 100, the fixing member 210 and the optical fiber 300, so as to improve the connection stability among them. Secondly, the connection through the connecting sleeve 200, the sleeve body 100 and the fixing member 210 can greatly improve the convenience of assembling the photoelectric cable connection structure, and each component can be machined separately, so that the machining and production are more convenient.

[0042] In addition, a through hole 110 is formed on the barrel 100 and extends along the axial direction of the barrel 100. The cable is passed through the through hole 110 to connect the electrical signal. At this time, the optical fiber 300 is located in the internal hollow position of the barrel 100, and the cable is located in the through hole 110 of the barrel 100. Both are connected to the barrel 100. As long as the barrel 100 is connected to the light source and the power source, the optical and electrical signals can be connected together. Moreover, since the cable is located in the through hole 110 of the barrel 100, and the optical fiber 300 is located in the barrel 100, the positions of the two are different, which avoids the mutual interference of their signals.

[0043] In some embodiments, the connecting sleeve 200 has a first threaded section 220 and a second threaded section 230. The first threaded section 220 is threadedly connected to the optical fiber 300, and the second threaded section 230 is threadedly connected to the fixing member 210. Specifically, as shown in Figure 2 the second threaded section 230 of the connecting sleeve 200 is an external thread, and the first threaded section 220 can be an external thread or an internal thread.

[0044] The connecting sleeve 200 threadedly connects the optical fiber 300 and the fixing member 210, which can make full use of the two stress surfaces of the first stepped surface 120 and the proximal end surface of the barrel 100 to compress the barrel 100, the optical fiber 300, and the fixing member 210 as much as possible in the axial direction. This greatly improves the stability of the connection between the optical fiber 300 and the barrel 100 and the fixing member 210. Moreover, the spiral tightening connection is more labor-saving and reasonable than the direct compression method. Furthermore, since the thread connection itself can control the range of screwing in and screwing out, the thread connection can also achieve the regulation of the position of the optical fiber 300, and the connection position can be changed according to different use requirements.

[0045] In some embodiments, the opening 130 at the distal end of the barrel 100 is polygonal. The opening 130 is used to be clamped with the optical fiber 300. As shown in Figure 5 the connecting part of the optical fiber 300 can be provided to match the opening 130 at the distal end of the barrel 100, and the two are clamped in alignment.

[0046] Specifically, the opening 130 at the distal end of the barrel 100 can be triangular, rectangular, pentagonal, hexagonal, etc., which is not limited here. For example, if the number of sides of the opening 130 at the distal end of the barrel 100 is too large, the shape of the opening 130 tends to be circular, which reduces the foolproof function of the opening 130 for the optical fiber 300.

[0047] By setting the opening 130 of the polygon, the edges of the polygon are used to limit the interface of the optical fiber 300, which can avoid the optical fiber 300 from being separated from the barrel 100 under the action of unnecessary external force, affecting the normal use of the optical cable interface, increasing the risk of light leakage. Further, through the clamping of the polygonal opening 130, the connection stability between the optical fiber 300 and the barrel 100 is improved, and a good foolproof effect is achieved.

[0048] In some embodiments, as shown in Figure 4 、 5 , 7, the optical cable connection structure further comprises a positioning portion 140.

[0049] Specifically, the positioning portion 140 is located on the proximal end face of the barrel 100, and the positioning portion 140 is used for positioning when the cable interface is connected.

[0050] The positioning portion 140 can be set according to the connection needs of the cable interface, and the shape, size and setting position thereof are not limited herein.

[0051] Exemplarily, as shown in Figure 5 、 7 , the positioning portion 140 can be a long strip-shaped protrusion.

[0052] By setting the positioning portion 140, the alignment can be facilitated when the optical cable connection structure is connected with the cable interface, the convenience degree in the plugging process is improved, and the use experience is optimized.

[0053] In some embodiments, the optical cable connection structure further comprises a circuit member 150. As shown in Figure 3 、 4 , the circuit member 150 is connected to the proximal end face of the barrel 100. The circuit member 150 is connected with the cable and is used for communicating with the electrical signal transmitted on the cable interface.

[0054] Specifically, the circuit member 150 is a closed ring in the circumferential direction. Exemplarily, the circuit member 150 can be a circuit board. As shown in Figure 3 , the circuit member 150 has a contact, and the contact is connected with the cable. When the circuit member 150 is connected with the cable interface, the contact can transmit the electrical signal to the circuit member 150 and further transmit the electrical signal to the cable.

[0055] By setting the ring-shaped circuit member 150, the force on each position of the circuit member 150 in the circumferential direction can be uniform when the circuit member 150 is connected with the cable interface, which can avoid the circuit member 150 from being damaged due to uneven force in the extrusion connection process, or cause the electrical signal connection at some positions of the circuit member 150 to be loose, resulting in large signal transmission fluctuation and affecting the normal use of the circuit member 150.

[0056] As shown in Figure 1 , 2 , the photoelectric cable connection structure further comprises a connection housing 400. The connection housing 400 is sleeved outside the barrel 100, and the proximal end of the connection housing 400 exceeds the proximal end face of the barrel 100 in the circumferential direction.

[0057] Specifically, the connection housing 400 is at least partially insulated. For example, the connection housing 400 can be made of an insulating material, or can be insulated by coating, painting, or other means.

[0058] The connection housing 400 can be used to connect the cable interface.

[0059] For example, the connection housing 400 can be directly plugged into the cable interface, or connected to the cable interface by clamping or other means.

[0060] For example, the connection housing 400 can be interference-fitted on the barrel 100, or adhered to the outer periphery of the barrel 100 by gluing or other means.

[0061] The connection housing 400 can serve as a connecting member to connect the barrel 100 and the cable interface, simplifying the connection between the barrel 100 and the cable interface. On the other hand, the connection housing 400 is sleeved outside the barrel 100, which can also protect the remaining components (e.g., the circuit member 150, the barrel 100, the optical fiber 300, the fixing member 210, etc.) in the photoelectric cable connection structure.

[0062] In some embodiments, when interference-fitting the connection housing 400 and the barrel 100 is required, a second stepped surface 410 can be provided inside the connection housing 400, and a third stepped surface 160 can be provided outside the barrel 100. When clamped, the second stepped surface 410 and the third stepped surface 160 abut to form a force receiving surface, thereby pressing the connection housing 400 and the barrel 100.

[0063] For example, the connection housing 400 and the barrel 100 can also be connected by threads.

[0064] In some embodiments, the connection housing 400 has internal threads, and when connected to the cable interface, the connection housing 400 can be screwed onto the cable interface by rotating the connection housing 400. At this time, the aforementioned second stepped surface 410 and the third stepped surface 160 abut to still serve as a force receiving surface, allowing the connection housing 400 to be fully connected to the cable interface.

[0065] By connecting the shell 400 and the cable interface through the thread, the contact on the circuit member 150 can be pressed against the electrical signal transmission member on the cable interface, ensuring stable communication of the signal path. At the same time, the cable interface and the connecting sleeve 200 are also pressed together. At this time, the optical fiber 300 inside the connecting sleeve 200 is in stable communication with the cable interface, ensuring accurate transmission of the optical path from the optical fiber 300 to the laser instrument.

[0066] In some embodiments, as shown in Figure 6 The photoelectric cable connection structure further includes a light filtering assembly 500. Specifically, the light filtering assembly 500 is used to calibrate the divergence angle of the optical fiber exit.

[0067] By providing the light filtering assembly 500 in the photoelectric cable connection structure, the divergence angle of the light can be calibrated before it enters the laser instrument, filtering out stray light and retaining parallel light to reduce the light spot and further reduce spherical aberration.

[0068] Specifically, the light filtering assembly 500 includes a connecting piece 510, a lens 520, and a protective piece 530. The connecting piece 510 can be multiple, and the connecting piece 510 is used to connect the light filtering assembly 500 and the connecting sleeve 200. For example, the connecting piece 510 can be an adhesive.

[0069] In some embodiments, the protective piece 530 protects the lens 520. For example, the protective piece 530 can be sapphire.

[0070] In some embodiments, the protective piece 530 can be coated. For example, the protective piece 530 can be made of a band-pass filter sapphire, further filtering stray light and reducing the light spot.

[0071] As shown in Figure 6 The light filtering assembly 500 is arranged in the connecting sleeve 200, which can protect the light filtering assembly 500 from being damaged.

[0072] In some embodiments, the connecting piece 510 can be an outer threaded ring, and the corresponding position in the connecting sleeve 200 is provided with an inner thread, and the connecting piece 510 and the connecting sleeve 200 are connected through the thread.

[0073] Specifically, the connecting piece 510 can be located on both sides of the lens 520 and the protective piece 530.

[0074] For example, the connecting piece 510, the lens 520, and the protective piece 530 do not need additional adhesion, and only need to abut the connecting piece 510 with the lens 520 or the protective piece 530 to fix and connect them, simplifying the connection steps.

[0075] By threading the connecting sleeve 200 and the filter assembly 500, the relative position between the filter assembly 500 and the optical fiber component 300, as well as the relative position between the various components in the filter assembly 500, can be adjusted accordingly according to changes in the optical signals of different laser instruments, thereby greatly improving the adaptability and versatility of the filter assembly 500.

[0076] In some embodiments, the connecting sleeve 200 has a fourth step surface 240 in it, and the fourth step surface 240 abuts against the lens 520. Figure 6 As shown, the fourth step surface 240 is located in the connecting sleeve 200 to limit the position of the lens 520. At this time, the lens 520 is stopped by the connecting member 510 and the fourth step surface 240.

[0077] By providing a connector 510 to threadably connect the filter assembly 500 to the connecting sleeve 200, the various components of the filter assembly 500 can be conveniently assembled into their respective positions as needed, making adjustment and disassembly easy, thus optimizing the user experience. The provision of the fourth step surface 240 also helps to limit the position of the filter assembly 500, preventing it from axially moving within the connecting sleeve 200 and affecting the normal operation of the optical fiber component 300.

[0078] The above embodiments of this application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0079] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A photoelectric cable connection structure, characterized in that: include: A cylinder (100), wherein the cylinder (100) has a through hole (110) extending therethrough in the axial direction, and a first step surface (120) is formed inside the cylinder (100); A connecting sleeve (200), wherein the cylinder (100) is sleeved on the connecting sleeve (200), one end of the connecting sleeve (200) is connected to the optical fiber component (300), and the other end of the connecting sleeve (200) is connected to the fixing component (210), the fixing component (210) abuts against the proximal end surface of the cylinder (100), and the optical fiber component (300) abuts against the first step surface (120) in the cylinder (100), so as to lock the cylinder (100) and the optical fiber component (300); A cable is passed through the through hole (110) on the barrel (100).

2. The photoelectric cable connection structure according to claim 1, characterized in that: The connecting sleeve (200) has a first threaded section (220) and a second threaded section (230), the first threaded section (220) is threadedly connected to the optical fiber component (300), and the second threaded section (230) is threadedly connected to the fixing component (210); And / or, the opening (130) at the distal end of the cylindrical body (100) is in a polygonal shape, and the opening (130) at the distal end of the cylindrical body (100) is used for clamping the optical fiber component (300); And / or, the photoelectric cable connection structure further comprises a positioning portion (140), the positioning portion (140) being located on the proximal end surface of the barrel (100), the positioning portion (140) being used for positioning when connected to a cable interface.

3. The photoelectric cable connection structure according to claim 1, characterized in that: The photoelectric cable connection structure further comprises a circuit component (150), the circuit component (150) being connected to the proximal end surface of the cylinder (100), the circuit component (150) being used to contact the cable interface to communicate electrical signals, and the circuit component (150) being closed in a circumferential direction to form a ring.

4. The photoelectric cable connection structure according to claim 3, characterized in that: The photoelectric cable connection structure further comprises a connection shell (400), the connection shell (400) being sleeved on the outside of the cylinder (100), the connection shell (400) being at least partially insulated, and the connection shell (400) being used for connection to the cable interface.

5. The photoelectric cable connection structure according to claim 4, characterized in that: A second step surface (410) is provided inside the connection housing (400), and a third step surface (160) is provided outside the cylinder (100). The second step surface (410) and the third step surface (160) abut against each other to compress the cable interface and the circuit component (150).

6. The photoelectric cable connection structure according to claim 5, characterized in that: The connection housing (400) has an internal thread, and the connection housing (400) is threadedly connected to the cable interface.

7. The photoelectric cable connection structure according to claim 1, characterized in that: The photoelectric cable connection structure further comprises a filter assembly (500), and the filter assembly (500) is used to calibrate the divergence angle of the optical fiber output.

8. The photoelectric cable connection structure according to claim 7, characterized in that: The optical filter assembly (500) comprises a plurality of connecting members (510), a lens (520), and a protective member (530); the connecting sleeve (200) is connected to the optical filter assembly (500) via the plurality of connecting members (510).

9. The photoelectric cable connection structure according to claim 8, characterized in that: The connecting piece (510) is a circular ring with an external thread, the connecting sleeve (200) has an internal thread, and the connecting piece (510) is threadedly connected to the connecting sleeve (200).

10. The photoelectric cable connection structure according to claim 8, characterized in that: A fourth step surface (240) is provided in the connecting sleeve (200), and the fourth step surface (240) in the connecting sleeve (200) abuts against the lens (520); And / or, the protective member (530) is coated externally, and the protective member (530) is used to protect the optical fiber member (300).

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