New type of circuit combining device and circuit combiner

Abstract

This disclosure provides a novel combining connection device, comprising a main housing, an insulating component, a connecting assembly, and a flange connector. The main housing has a first receiving groove, in which the insulating component is placed with its outer wall abutting the inner wall of the groove. The insulating component has a second receiving groove communicating with the first receiving groove, and the connecting assembly is installed in the second receiving groove. The flange connector connects to the side of the main housing opposite to the connecting assembly. Its connecting groove has an internal thread on its inner wall, which connects to the external thread of the combiner connector using a thread-locking agent. The thread-locking agent tightly bonds the internal and external threads, filling machining tolerance gaps and eliminating the gaps between multiple components in traditional flange bolt connections. This results in smoother signal transmission, reduced reflection and loss, and improved intermodulation stability of the combiner. Simultaneously, in high-frequency vibration environments, the adhesive layer enhances the strength and stability of the connection, avoiding the loosening problem of traditional threaded bolt connections, thereby improving the reliability of the novel combining connection device.

Description

Technical Field

[0001] This disclosure relates to the technical field of combiners, and in particular to a novel combiner connection device and combiner. Background Technology

[0002] In the field of wireless communication systems and radio frequency devices, combiners, as key passive components, directly affect signal transmission quality and system stability through the reliability of their connection interfaces. Traditional combiner connectors mostly use a mechanical connection method with flanges and screws for fastening. Although this structure can meet basic connection requirements under certain conditions, it has technical bottlenecks in practical applications.

[0003] Specifically, such as Figure 5 As shown, flange-bolted connections achieve surface contact pressure through circumferentially distributed screws. However, in actual assembly, torque uniformity is difficult to control precisely, easily leading to uneven pressure distribution at the connection interface. Local areas experience stress concentration, resulting in micro-deformation or contact gaps, forming nonlinear contact resistance, which becomes a major cause of passive intermodulation interference. Especially during high-frequency signal transmission, this nonlinear contact exacerbates signal distortion, causes energy leakage of intermodulation products, and consequently affects the intermodulation stability of the combiner.

[0004] For example, patent document CN202111106369.7 discloses a flange connector with low passive intermodulation interference. By separating the mechanical stress-bearing function and the electrical signal transmission function of the flange connector, and utilizing the elastic deformation characteristics of the signal transmission ring, stress concentration is transferred to the connection stress ring, thereby solving the problem of plastic deformation caused by overstress or repeated connection of traditional metal gasket rings. However, in this solution, the flange connector is fastened with bolts. The bolts are prone to gradual attenuation of preload due to metal fatigue or vibration, resulting in small gaps at the connection interface, which can induce contact resistance fluctuations and even introduce additional intermodulation interference. Utility Model Content

[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a novel combining connection device and combiner that can improve intermodulation stability.

[0006] The purpose of this disclosure is achieved through the following technical solution:

[0007] A novel circuit merging connection device includes a main housing, an insulating component, and a connecting assembly. The main housing has a first receiving groove, the insulating component is disposed in the first receiving groove, the outer wall of the insulating component abuts against the inner wall of the first receiving groove, the insulating component has a second receiving groove, the first receiving groove is connected to the second receiving groove, and the connecting assembly is disposed in the second receiving groove.

[0008] The novel combining connection device further includes a flange connector, which is connected to the side of the main housing opposite to the connecting assembly. The flange connector has a connecting groove with an internal thread on the inner wall of the connecting groove. The connecting groove communicates with a second receiving groove. The internal thread is used to make a threaded connection with the combiner connector using thread fastener.

[0009] In one embodiment, the nominal diameter of the internal thread is 24 mm.

[0010] In one embodiment, the pitch of the internal thread is 1 mm.

[0011] In one embodiment, the flange connector has a thickness of 7 mm.

[0012] In one embodiment, the flange connector has an installation groove.

[0013] In one embodiment, the outer side wall of the main housing is provided with a first male thread, which is disposed opposite to the flange connector.

[0014] In one embodiment, the nominal diameter of the first male thread is 29 mm.

[0015] In one embodiment, the pitch of the first male thread ranges from 1.5 mm to 2.0 mm.

[0016] In one embodiment, the pitch of the first male thread is 1.5 mm.

[0017] This application also provides a combiner, characterized in that it includes the novel combining connection device described in any embodiment.

[0018] Compared with the prior art, this disclosure has at least the following advantages:

[0019] The aforementioned novel combining connection device, through the application of thread-locking adhesive, tightly bonds the internal thread of the new combining connection device to the external thread of the combiner connector, while simultaneously filling the minute gaps caused by thread machining tolerances. This eliminates the multi-component gaps inherent in traditional flange and bolt connections, allowing signals to pass more smoothly through the connection point during transmission, reducing signal reflection and loss, and thus improving the intermodulation stability of the combiner. Furthermore, when the combiner is subjected to high-frequency vibration, the adhesive layer tightly bonds the internal and external threads, giving the connection point higher strength and stability. This avoids the problem of bolts easily loosening and causing connection loosening under high-frequency vibration in traditional threaded connections, thereby improving the reliability of the novel combining connection device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a novel circuit combining connection device according to an embodiment;

[0022] Figure 2 for Figure 1 A cross-sectional view of the novel circuit connection device shown;

[0023] Figure 3 for Figure 2 The diagram shows the connection between the new type of combiner connection device and the combiner connector;

[0024] Figure 4 This is a schematic diagram of the structure of a combiner connector according to one embodiment;

[0025] Figure 5 This is a schematic diagram of the structure of a traditional combiner flange bolt connector. Detailed Implementation

[0026] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0030] like Figures 1 to 4 As shown, a novel combining connection device 10 according to an embodiment of this disclosure includes a main housing 100, an insulating member 200, and a connecting assembly 300. The main housing 100 has a first receiving groove 1001, the insulating member 200 is disposed in the first receiving groove 1001, the outer wall of the insulating member 200 abuts against the inner wall of the first receiving groove 1001, the insulating member 200 has a second receiving groove 1002, the first receiving groove 1001 communicates with the second receiving groove 1002, and the connecting assembly 300 is disposed in the second receiving groove 1002.

[0031] The novel combining connection device 10 also includes a flange connector 400, which is connected to the side of the main housing 100 away from the connecting assembly 300. The flange connector 400 has a connecting groove 4001, and the inner wall of the connecting groove 4001 has an internal thread 410. The connecting groove 4001 is connected to the second receiving groove 1002. The internal thread 410 is used to make a threaded connection with the combiner connector 20 through a thread fastener.

[0032] In this embodiment, before assembly, an appropriate amount of thread-locking agent is pre-applied to the internal thread 410 of the connecting groove 4001. When the new type of combining connection device 10 is assembled with the combiner, the connector of the combiner is aligned with the connecting groove 4001 of the flange connector 400. As the external thread of the combiner connector 20 is screwed into the internal thread 410, the thread-locking agent is evenly filled into the meshing gap between the internal and external threads. This liquid thread-locking agent gradually solidifies at room temperature, forming a high-strength adhesive layer that tightly bonds the internal thread 410 and the external thread together, while filling the minor gaps caused by thread machining tolerances. Specifically, compared with the threaded connection method that relies on flanges and multiple sets of bolts and nuts in traditional technical solutions, this embodiment, through the application of thread-locking agent, omits the steps of installing gaskets between flanges and tightening bolts one by one, avoiding the problem of multiple gaps in the connection due to factors such as machining tolerances and assembly errors of various components. When the combiner connector 20 is screwed in to the predetermined torque, the thread-locking agent begins to gradually solidify, thereby forming a connection structure that combines high-strength adhesion and excellent sealing performance. This effectively avoids the problem of thread loosening under high-frequency vibration environment. At the same time, by eliminating the gaps between multiple components in the flange connection, the stability of signal transmission is improved.

[0033] The aforementioned novel combining connection device 10, through the application of thread-locking adhesive, tightly bonds the internal thread 410 of the novel combining connection device 10 to the external thread of the combiner connector 20, simultaneously filling the minute gaps caused by thread machining tolerances. This eliminates the multi-component gaps inherent in traditional flange and bolt connections, allowing signals to pass more smoothly through the connection points during transmission, reducing signal reflection and loss, and thus improving the intermodulation stability of the combiner. Furthermore, when the combiner is subjected to high-frequency vibration, the adhesive layer tightly bonds the internal thread 410 to the external thread, giving the connection point higher strength and stability. This avoids the problem of bolts easily loosening and causing connection point loosening under high-frequency vibration in traditional threaded connections, thereby improving the reliability of the novel combining connection device 10.

[0034] like Figure 2 and Figure 3 As shown, in one embodiment, the nominal diameter of the internal thread 410 is 24 mm. In this embodiment, the nominal diameter of the internal thread 410 of the flange connector 400 is set to this size. Based on the power carrying requirements and signal transmission characteristics optimization of the high-frequency combiner, by adapting to the physical structure of the large-diameter joint and combining the synergistic effect of the thread fastener, the gap caused by uneven pre-tightening of multiple bolts in traditional flange connections is effectively eliminated. Furthermore, the continuous adhesive layer formed by the thread fastener reduces the nonlinear contact of the metal interface. Compared with traditional flange connection methods, this effectively reduces signal interference, thereby ensuring the stability of communication signals.

[0035] like Figure 2 and Figure 3 As shown, in one embodiment, the pitch of the internal thread 410 is 1 mm. In this embodiment, the smaller pitch results in a tighter meshing between the threads. After the threadlocker cures to form an adhesive layer, the adhesive layer can better fill the thread gaps, tightly bonding the internal thread 410 to the external thread. During high-frequency vibration, this tight bond can effectively resist the impact force caused by vibration and reduce the relative displacement between the threads. At the same time, the smaller pitch, combined with the continuous adhesive layer formed by the threadlocker, fills the tiny gaps between the threads, making the interface more uniform when the signal is transmitted between the metal thread and the adhesive layer, thereby reducing signal interference caused by the difference in dielectric constant between the metal interface and the air interface.

[0036] like Figure 2 and Figure 3As shown, in one embodiment, the thickness D of the flange connector 400 is 7 mm. In this embodiment, the thickness D parameter is set based on the optimization of the mechanical properties and signal transmission characteristics of the connection structure. The 7 mm thickness D provides the flange connector 400 with moderate structural rigidity, enabling it to maintain a stable geometric shape when subjected to the axial torque when the combiner joint 20 is tightened and the alternating load under high-frequency vibration environment. This avoids flange deformation caused by insufficient thickness D, which could lead to thread misalignment, and thus ensures that the adhesive layer formed by the thread fastener is always under uniform stress. At the same time, sufficient thickness D ensures the material strength from the root of the internal thread 410 to the outer surface of the flange, avoiding the problem of fatigue fracture at the thread root that may occur in traditional thin-walled flanges under long-term vibration.

[0037] like Figure 2 and Figure 3 As shown, in one embodiment, the flange connector 400 has a mounting groove 4002. In this embodiment, the mounting groove 4002 provides precise positioning and operating space for external auxiliary assembly tools. During the assembly of the novel combining connection device 10 and the combiner, to ensure that the combiner connector 20 can be accurately screwed into the connecting groove 4001 of the flange connector 400 and reach the predetermined torque value, specific assembly tools, such as torque wrenches, are usually required. The design of the mounting groove 4002 allows these assembly tools to be firmly inserted into it, achieving stable positioning. Operators can use the cooperation between the tools and the groove to apply tightening torque more precisely, avoiding assembly errors caused by tool slippage or inaccurate positioning. This not only improves assembly efficiency but also ensures assembly quality, making the threaded connection between the combiner connector 20 and the flange connector 400 more reliable. The thread fastener can be evenly filled in the meshing gap of the internal and external threads, fully exerting its bonding and sealing effects, further enhancing the high-strength adhesion and excellent sealing performance of the connection.

[0038] like Figure 2 and Figure 3 As shown, in one embodiment, the outer wall of the main housing 100 is provided with a first male thread 110, which is disposed away from the flange connector 400. In this embodiment, when the first male thread 110 is tightened with the male connector, a tight sealing environment can be formed at the connection point with the help of a dedicated sealing washer or sealant. During high-frequency signal transmission, this sealing structure can effectively isolate harmful factors such as external electromagnetic interference, moisture, and dust, ensuring the purity and stability of signal transmission. At the same time, the tight contact surface formed by the threaded connection reduces contact resistance, reduces energy loss during signal transmission, and improves electrical performance.

[0039] like Figure 2 and Figure 3As shown, in one embodiment, the nominal diameter of the first male thread 110 is 29 mm. In this embodiment, the 29 mm nominal diameter effectively improves the fit between the connection part and the male connector, thereby enhancing the stability of signal transmission. During high-frequency signal transmission, the impedance matching and electromagnetic compatibility requirements of the connection part are extremely high. A larger diameter threaded connection can provide a larger contact area, reduce contact resistance, and reduce energy loss during signal transmission. When the first male thread 110 is tightened with the male connector, due to the increased contact area, the number of impedance discontinuities encountered by the signal during transmission is reduced, thereby reducing the possibility of signal reflection and interference.

[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the pitch of the first male thread 110 ranges from 1.5 mm to 2.0 mm. In this embodiment, the pitch range is set based on a comprehensive optimization of connection strength, assembly convenience, and high-frequency signal transmission characteristics. From a mechanical performance perspective, a pitch of 1.5-2.0 mm avoids the problems of excessively narrow thread profile and insufficient strength caused by an excessively small pitch, while also preventing the defects of insufficient engagement depth and reduced axial load-bearing capacity caused by an excessively large pitch. Specifically, when the first male thread 110 is screwed into the male connector, this pitch range ensures that the thread flank angle and the mating surface form a stable mechanical engagement. When used with a sealing washer or sealant, the reasonable thread helix angle allows the sealing material to evenly fill the thread gap, forming a double sealing structure in both the radial and axial directions, effectively isolating external electromagnetic interference and environmental pollutants.

[0041] like Figure 2 and Figure 3 As shown, in one embodiment, the pitch of the first male thread 110 is 1.5 mm. In this embodiment, the setting of this pitch parameter achieves a precise balance between connection strength, assembly efficiency, and high-frequency signal transmission performance. The 1.5 mm pitch optimizes the ratio of thread profile thickness D to flank angle, and provides a moderate thread root width and crest bearing surface area. This avoids the problems of excessively narrow thread profile and insufficient shear strength caused by an excessively small pitch, while also preventing the defects of shallow engagement depth and easy thread slippage under axial load caused by an excessively large pitch. When the first male thread 110 is screwed into the male connector, the thread helix angle (angle between the helix and the cross-section) corresponding to the 1.5 mm pitch can generate reasonable axial pressure during tightening, prompting the sealing gasket or sealant to uniformly fill the thread gap. While forming a continuous sealing layer in the radial direction, the tight fit of the thread flanks enhances the axial pull-out resistance, effectively resisting alternating loads under high-frequency vibration environments.

[0042] This application also provides a combiner, characterized in that it includes a novel combiner connection device 10 according to any embodiment. In this embodiment, before assembly, an appropriate amount of thread-locking agent is pre-applied to the internal thread 410 of the connecting groove 4001. When the novel combiner connection device 10 is assembled with the combiner, the connector of the combiner is aligned with the connecting groove 4001 of the flange connector 400. As the external thread of the combiner connector 20 is screwed into the internal thread 410, the thread-locking agent is evenly filled into the meshing gap between the internal and external threads. This liquid thread-locking agent gradually solidifies at room temperature, forming a high-strength adhesive layer that tightly bonds the internal thread 410 and the external thread together, while filling the minor gaps caused by thread machining tolerances. Specifically, compared with the threaded connection method in traditional technical solutions that relies on flanges and multiple sets of bolts and nuts, this embodiment, through the application of thread-locking agent, omits the steps of installing gaskets between flanges and tightening bolts one by one, avoiding the problem of multiple gaps in the connection due to factors such as machining tolerances and assembly errors of various components. When the combiner connector 20 is screwed in to the predetermined torque, the thread-locking agent begins to gradually solidify, thereby forming a connection structure that combines high-strength adhesion and excellent sealing performance. This effectively avoids the problem of thread loosening under high-frequency vibration environment. At the same time, by eliminating the gaps between multiple components in the flange connection, the stability of signal transmission is improved.

[0043] Compared with the prior art, this disclosure has at least the following advantages:

[0044] The aforementioned novel combining connection device 10, through the application of thread-locking adhesive, tightly bonds the internal thread 410 of the novel combining connection device 10 to the external thread of the combiner connector 20, simultaneously filling the minute gaps caused by thread machining tolerances. This eliminates the multi-component gaps inherent in traditional flange and bolt connections, allowing signals to pass more smoothly through the connection points during transmission, reducing signal reflection and loss, and thus improving the intermodulation stability of the combiner. Furthermore, when the combiner is subjected to high-frequency vibration, the adhesive layer tightly bonds the internal thread 410 to the external thread, giving the connection point higher strength and stability. This avoids the problem of bolts easily loosening and causing connection point loosening under high-frequency vibration in traditional threaded connections, thereby improving the reliability of the novel combining connection device 10.

[0045] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A novel circuit-combining connection device, comprising a main housing, an insulating component, and a connecting assembly, wherein the main housing has a first receiving groove, the insulating component is disposed within the first receiving groove, the outer wall of the insulating component abuts against the inner wall of the first receiving groove, the insulating component has a second receiving groove, the first receiving groove communicating with the second receiving groove, and at least a portion of the connecting assembly is engaged within the second receiving groove, characterized in that, The novel combining connection device further includes a flange connector, which is connected to the side of the main housing opposite to the connecting assembly. The flange connector has a connecting groove with an internal thread on the inner wall of the connecting groove. The connecting groove communicates with a second receiving groove. The internal thread is used to make a threaded connection with the combiner connector using thread fastener.

2. The novel combining connection device according to claim 1, characterized in that, The nominal diameter of the internal thread is 24 mm.

3. The novel combining connection device according to claim 2, characterized in that, The pitch of the internal thread is 1 mm.

4. The novel combining connection device according to claim 1, characterized in that, The flange connector has a thickness of 7 mm.

5. The novel circuit combining device according to claim 1, characterized in that, The flange connector has an installation groove.

6. The novel combining connection device according to claim 1, characterized in that, The outer wall of the main housing is provided with a first male thread, which is disposed away from the flange connector.

7. The novel circuit combining device according to claim 6, characterized in that, The nominal diameter of the first male thread is 29 mm.

8. The novel circuit combining device according to claim 6, characterized in that, The pitch of the first male thread ranges from 1.5 mm to 2.0 mm.

9. The novel circuit combining device according to claim 8, characterized in that, The pitch of the first male thread is 1.5 mm.

10. A combiner, characterized in that, Including the novel circuit-combining connection device as described in any one of claims 1 to 9.

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