Junction box for cable assembly

Abstract

The utility model discloses a junction box used for a cable assembly, and relates to the junction box technology field, the cable assembly comprises a first cable and a second cable, the first cable comprises at least one first sub-cable, the second cable comprises at least one second sub-cable, the first sub-cable and the second sub-cable are in one-to-one correspondence, and the first sub-cable and the second sub-cable are in one-to-one correspondence. The junction box comprises a shell, one end of the first cable and one end of the second cable extend into the shell, the PCB is provided with at least one functional circuit, and the functional circuit is used for being connected with the corresponding first sub-cable and the second sub-cable. According to the junction box, the PCB is arranged in the junction box, the PCB is provided with at least one functional circuit, and the functional circuit is used for connecting the corresponding first sub-cable and the second sub-cable, so that the junction box can be adapted to equipment of cable assemblies which are difficult to change or cannot be changed, and the compatibility and the market competitiveness of the equipment can be improved; and cable assembly characteristics can be accurately matched, signal loss and fault rate can be reduced, and signal transmission quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, and in particular to a junction box for cable assemblies. Background Technology

[0002] In related technologies, traditional communication equipment often uses external cables to connect to external power and communication sources. However, external cables make the cable assembly susceptible to interference in the environment. Noise radiated outwards by the cable assembly can cause RE tests to fail, and external noise coupled into the cable assembly may degrade the signal reception quality within the equipment, affecting the sensitivity of the communication equipment. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide a junction box for cable assemblies that, through the functional circuitry of a PCB board, can accurately match the characteristics of the cable assemblies, reduce signal loss and failure rate, reduce electromagnetic interference (EMI), improve signal transmission quality, and also reduce the risk of cable assembly damage.

[0004] According to an embodiment of the present invention, a junction box for a cable assembly is provided. The cable assembly includes a first cable and a second cable. The first cable includes at least one first sub-cable, and the second cable includes at least one second sub-cable. The first sub-cable and the second sub-cable correspond one-to-one. The junction box includes:

[0005] The housing is used to allow one end of the first cable and one end of the second cable to extend into it;

[0006] The PCB board has at least one functional circuit for connecting the corresponding first sub-cable and second sub-cable.

[0007] According to an embodiment of the present invention, a junction box for cable assemblies has a housing for one end of a first cable and one end of a second cable to be inserted. The first cable includes at least one first sub-cable, and the second cable includes at least one second sub-cable. The first and second sub-cables correspond one-to-one. By providing a PCB board inside the junction box, the PCB board having at least one functional circuit for connecting the corresponding first and second sub-cables, it can be adapted to devices with cable assemblies that are difficult or impossible to change, thereby improving the compatibility and market competitiveness of the device. It can also accurately match the characteristics of the cable assembly, reducing signal loss and failure rate.

[0008] According to some embodiments of the present invention, the outer shell defines an installation space, the PCB board is installed in the installation space, and the outer shell has multiple cable through holes, which are respectively used for the first cable and the second cable to pass through, so that one end of the first cable and one end of the second cable extend into the outer shell.

[0009] According to some embodiments of the present invention, the junction box further includes: multiple cable connectors, which are used for passing through corresponding first cables or second cables. The multiple cable connectors and multiple cable holes are arranged in a one-to-one correspondence. The cable connector includes a limiting ring and a limiting head. The limiting ring is annular and fixed to the outer surface of the housing. The limiting ring is arranged around the cable hole along the circumference of the corresponding cable hole. The cable connector is annular and suitable for being sleeved on the corresponding first cable or second cable. The limiting head can be fixed to the limiting ring to fix the corresponding first cable or second cable.

[0010] According to some embodiments of this utility model, fixing the limiting head to the limiting ring can seal the corresponding cable through the hole.

[0011] According to some embodiments of the present invention, the outer surface of the limiting ring is formed with an external thread, the inner surface of the limiting head is formed with an internal thread, the limiting head can be sleeved on the limiting ring, and the external thread and the internal thread are connected to fix the limiting head to the limiting ring.

[0012] According to some embodiments of the present invention, the outer shell has a first shell wall and a second shell wall, the first shell wall having a portion of cable through holes and the second shell wall having another portion of cable through holes.

[0013] According to some embodiments of the present invention, the first shell wall and the second shell wall are opposite to each other and spaced apart.

[0014] According to some embodiments of the present invention, cable perforations on the first shell wall and cable perforations on the second shell wall are provided in a one-to-one correspondence along the first direction.

[0015] According to some embodiments of the present invention, the outer shell includes: a shell body and a cover body, the shell body defining an open mounting groove at one end, the cover body covering the open end of the mounting groove to define the mounting space, and the cover body and the shell body are detachably connected.

[0016] According to some embodiments of the present invention, there are multiple functional circuits, which are respectively used to connect the corresponding first sub-cable and second sub-cable.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is an exploded view of the junction box and cable assembly according to an embodiment of the present utility model;

[0020] Figure 2 This is a top view of the junction box and cable assembly after assembly according to an embodiment of the present utility model;

[0021] Figure 3 This is an internal schematic diagram of the junction box and cable assembly after assembly according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Junction box 100;

[0024] 10 for the outer casing;

[0025] PCB board 11; Functional circuit 110;

[0026] Installation space 12; Cable hole 13;

[0027] Cable connector 14; limit ring 141; limit head 142;

[0028] First shell wall 15; Second shell wall 16; Shell body 17; Cover 18;

[0029] Cable assembly 200; first cable 201; second cable 202; first sub-cable 203; second sub-cable 204. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] The following is for reference. Figures 1-3 The present invention describes a junction box 100 for a cable assembly 200, wherein the cable assembly 200 includes a first cable 201 and a second cable 202, the first cable 201 includes at least one first sub-cable 203, and the second cable 202 includes at least one second sub-cable 204, the first sub-cable 203 and the second sub-cable 204 corresponding one-to-one, and the junction box 100 includes:

[0032] Housing 10, housing 10 is used for one end of the first cable 201 and one end of the second cable 202 to extend into;

[0033] PCB board 11 has at least one functional circuit 110 for connecting the corresponding first sub-cable 203 and second sub-cable 204.

[0034] The first direction is Figure 1In the X direction, the cable assembly 200 includes a first cable 201 and a second cable 202. The first cable 201 includes at least one first sub-cable 203. In some embodiments of this utility model, the first cable 201 may include one, two, three, four or other numbers of first sub-cables 203. However, this utility model is not limited to this. The first cable 201 may also include other numbers of first sub-cables 203, as long as the first cable 201 includes at least one first sub-cable 203. It can be reasonably set according to the actual situation.

[0035] The second cable 202 includes at least one second sub-cable 204. In some embodiments of the present invention, the second cable 202 may include one, two, three, four or other numbers of second sub-cables 204. However, the present invention is not limited to this. The second cable 202 may also include other numbers of second sub-cables 204, as long as the second cable 202 includes at least one second sub-cable 204. It can be reasonably set according to the actual situation.

[0036] Each first sub-cable 203 and its corresponding second sub-cable 204 may undertake specific signal transmission tasks (such as power, data, control signals, etc.). The one-to-one correspondence between the first sub-cable 203 and the second sub-cable 204 can avoid signal crosstalk, improve communication quality, and facilitate troubleshooting.

[0037] The junction box 100 includes a housing 10, which can be made of a metal material (such as aluminum alloy, stainless steel, galvanized steel sheet, etc.). Metal materials have high hardness, can withstand external impacts without easily deforming, and have strong high-temperature resistance, which helps to extend the service life of the junction box 100. Furthermore, the metal material can shield electromagnetic interference (EMI) and radio frequency interference (RFI). Placing the connection points of the cable assembly 200 inside the junction box 100 ensures stable signal transmission of the cable assembly 200. The metal housing 10 can be grounded, further enhancing anti-interference capabilities. The high thermal conductivity of the metal material allows for rapid heat dissipation from inside the junction box 100 to the environment, preventing overheating of the cable assembly 200, reducing aging of the cable assembly 200, and extending the equipment's service life.

[0038] The housing 10 is used to allow one end of the first cable 201 and one end of the second cable 202 to extend into it. It houses the connection points of the first cable 201 and the second cable 202 within the housing 10, protecting these connection points and preventing breakage or poor contact of the cable assembly 200 due to external forces (pulling, squeezing, bending). It also isolates the cable assembly 200 from dust, moisture, chemicals, etc., preventing corrosion or short circuits. Furthermore, it shields against electromagnetic interference (EMI) and radio frequency interference (RFI), ensuring the signal transmission quality of the cable assembly 200. Additionally, it reduces the risk of electric shock, protecting personnel and equipment safety.

[0039] The PCB board 11 can be a single-sided board, a double-sided board, or a multi-layer board. It can be reasonably set according to the actual situation. This utility model takes the double-sided board 11 as an example for explanation. The upper layer of the PCB board 11 can be used for wiring, and the bottom layer can be used as the main ground, which is beneficial to improving the electrical performance and reliability of the PCB board 11. However, it is not limited to this embodiment and can be reasonably set according to the actual situation.

[0040] The PCB board 11 may have at least one functional circuit 110. In some embodiments of the present invention, the PCB board 11 may have one, two, three, four, five or other numbers of functional circuits 110. However, the present invention is not limited to this. The PCB board 11 may also have other numbers of functional circuits 110, which can be reasonably set according to the actual situation.

[0041] Functional circuit 110 is used to connect the corresponding first sub-cable 203 and second sub-cable 204. Signal parameters (such as impedance, voltage, and current) can be adjusted using components such as resistors, capacitors, and inductors to achieve electrical compatibility between the first sub-cable 203 and the second sub-cable 204. This improves the signal integrity and anti-interference capability of the cable assembly 200. Furthermore, the number and type of functional circuit 110, as well as the number and type of components on the PCB board 11, can be rationally set according to the needs of the cable assembly 200 to adapt to devices with cable assemblies that are difficult or impossible to change. This allows the junction box 100 to enhance the compatibility and market competitiveness of the equipment, accurately match the characteristics of the cable assembly 200, and reduce signal loss and failure rate. Moreover, the junction box 100 is small in size and light in weight, easy to set up and install, and has low operating costs.

[0042] According to the embodiment of the present invention, a junction box 100 for a cable assembly 200 has a one-to-one correspondence between a first sub-cable 203 and a second sub-cable 204. By providing a PCB board 11 inside the junction box 100, the PCB board 11 has at least one functional circuit 110 for connecting the corresponding first sub-cable 203 and second sub-cable 204. This allows it to be adapted to devices with cable assemblies 200 that are difficult or impossible to change, thereby improving the compatibility and market competitiveness of the device. It can also accurately match the characteristics of the cable assembly 200, reducing signal loss and failure rate.

[0043] According to some embodiments of the present invention, such as Figure 3 As shown, the housing 10 can define an installation space 12, and the PCB board 11 is installed in the installation space 12. The housing 10 has a plurality of cable through holes 13, which are respectively used for the first cable 201 and the second cable 202 to pass through, so that one end of the first cable 201 and one end of the second cable 202 extend into the housing 10.

[0044] The housing 10 defines the installation space 12, and the PCB board 11 is installed in the installation space 12. This can constrain the size of the PCB board 11, avoid over-design, reduce the use of unnecessary materials, and the housing 10 can also reduce the influence of external electromagnetic fields on the PCB board 11.

[0045] The outer casing 10 may have multiple cable through holes 13. In some embodiments of this invention, the outer casing 10 may have two, three, four, or other numbers of cable through holes 13. However, this invention is not limited to this; the outer casing 10 may also have other numbers of cable through holes 13, as long as the outer casing 10 has multiple cable through holes 13. This invention is illustrated by taking an outer casing 10 with two cable through holes 13 as an example. The two cable through holes 13 are respectively used for the first cable 201 and the second cable 202 to pass through, so that one end of the first cable 201 and one end of the second cable 202 extend into the outer casing 10. Through the design of the cable through holes 13, the first cable 201 and the second cable 202 can enter the outer casing 10 neatly, which facilitates centralized management and wiring, and reduces the disorder of the cable assembly 200. The cable through holes 13 can fix the position of the first cable 201 and the second cable 202, preventing the first cable 201 and the second cable 202 from shaking or loosening inside the outer casing 10, thereby improving the stability of the cable assembly 200 connection.

[0046] According to some embodiments of the present invention, such as Figure 1 As shown, the junction box 100 may further include: multiple cable connectors 14, which are used for the corresponding first cable 201 or second cable 202 to pass through. The multiple cable connectors 14 and multiple cable through holes 13 are arranged in a one-to-one correspondence. The cable connector 14 includes a limiting ring 141 and a limiting head 142. The limiting ring 141 is annular and fixed to the outer surface of the housing 10. The limiting ring 141 is arranged around the cable through hole 13 in the circumferential direction of the corresponding cable through hole 13. The cable connector 14 is annular and suitable for being sleeved on the corresponding first cable 201 or second cable 202. The limiting head 142 can be fixed to the limiting ring 141 to fix the corresponding first cable 201 or second cable 202.

[0047] The junction box 100 may further include multiple cable connectors 14. In some embodiments of this utility model, the junction box 100 may include two, three, four, or other numbers of cable connectors 14, but this utility model is not limited to this. The junction box 100 may also include other numbers of cable connectors 14, as long as the junction box 100 includes multiple cable connectors 14. This utility model is described using the example of a junction box 100 including two cable connectors 14.

[0048] Cable connectors 14 are used for the corresponding first cable 201 or second cable 202 to pass through. Multiple cable connectors 14 and multiple cable through holes 13 are provided in a one-to-one correspondence, so that each cable connector 14 and the corresponding cable through hole 13 are precisely matched, ensuring that the connection path of the corresponding first cable 201 or second cable 202 is unique and clear, avoiding cable misconnection or confusion. The cable connectors 14 can fix the corresponding first cable 201 or second cable 202 through mechanical structures (such as threads or clips), preventing the corresponding first cable 201 or second cable 202 from shaking or shifting within the housing 10, reducing the risk of loose connection.

[0049] The cable connector 14 may include a limiting ring 141 and a limiting head 142. The limiting ring 141 is annular and fixed to the outer surface of the housing 10. As some embodiments of this utility model, the limiting ring 141 and the housing 10 can be fixedly connected by snap-fit ​​or by welding. However, this utility model is not limited to these methods. The limiting ring 141 and the housing 10 can also be fixedly connected by other methods, as long as the limiting ring 141 is annular and fixed to the outer surface of the housing 10. The limiting ring 141 is arranged around the corresponding cable through hole 13 along the circumference of the corresponding cable through hole 13, forming a physical boundary. This ensures that the direction of the corresponding first cable 201 or second cable 202 when passing through the corresponding cable through hole 13 is unique, preventing the corresponding first cable 201 or second cable 202 from shifting or misaligning, and providing stable support for the corresponding first cable 201 or second cable 202.

[0050] The cable connector 14 is annular and suitable for being fitted onto the corresponding first cable 201 or second cable 202. The limiting head 142 can be fixed to the limiting ring 141. In some embodiments of this utility model, the limiting head 142 and the limiting ring 141 can be connected by threads, or the limiting head 142 and the limiting ring 141 can be connected by snap-fit. However, this utility model is not limited to this. The limiting head 142 and the limiting ring 141 can also be connected in other ways, as long as the limiting head 142 can be fixed to the limiting ring 141.

[0051] The cable connector 14 is ring-shaped and suitable for fitting onto the corresponding first cable 201 or second cable 202. The limiting head 142 can be fixed to the limiting ring 141 to secure the corresponding first cable 201 or second cable 202, withstand the cable tension of the corresponding first cable 201 or second cable 202, and prevent the corresponding first cable 201 or second cable 202 from shaking or falling off inside the housing 10. The matching design of the limiting ring 141 and the limiting head 142 ensures that the installation path of the corresponding first cable 201 or second cable 202 is unique, reducing the difficulty of operation. Furthermore, when the limiting head 142 is fixed to the limiting ring 141, it can seal the cable perforation 13, preventing moisture, dust, or corrosive substances from entering the junction box 100, thereby reducing the risk of corrosion or short circuit of the cable assembly 200, ensuring the signal transmission quality of the cable assembly 200, and also reducing the risk of electric shock, protecting the safety of personnel and equipment. The size, shape, and dimensions of the limiting ring 141 and the limiting head 142 can be standardized to ensure the universality of different models of cable assemblies 200, thereby reducing the cost of using the junction box 100.

[0052] According to some embodiments of the present invention, such as Figure 1 and Figure 2 As shown, the limiting head 142 fixed to the limiting ring 141 can seal the corresponding cable through hole 13, preventing moisture, dust or corrosive substances from entering the junction box 100, avoiding connection failure or signal interference between the corresponding first cable 201 and second cable 202 in the junction box 100, extending the service life and connection reliability of the cable assembly 200, ensuring the signal transmission quality of the cable assembly 200, and also reducing the risk of electric shock and protecting the safety of personnel and equipment.

[0053] According to some embodiments of the present invention, such as Figure 1 As shown, the outer surface of the limiting ring 141 can be formed with an external thread, and the inner surface of the limiting head 142 is formed with an internal thread. The limiting head 142 can be sleeved on the limiting ring 141, and the external thread and the internal thread are connected to fix the limiting head 142 to the limiting ring 141.

[0054] The limiting ring 141 has an external thread on its outer surface, and the limiting head 142 has an internal thread on its inner surface. The external and internal threads are compatible, allowing the limiting head 142 to be fitted onto the limiting ring 141. The engagement of the external and internal threads ensures a secure fixation of the limiting head 142 to the limiting ring 141. The self-locking property of the threads allows for a stable connection between the limiting head 142 and the limiting ring 141 without external force, reducing the risk of loosening under vibration or impact. The threaded engagement enables precise axial positioning, ensuring a fixed relative position between the limiting head 142 and the limiting ring 141, meeting high-precision assembly requirements, and thus ensuring the stable positioning of the first cable 201 and the second cable 202. Connecting or separating the limiting head 142 from the limiting ring 141 can be achieved by rotating it, requiring no additional tools and offering simple and efficient operation. The threaded connection structure maintains high connection strength even after multiple disassemblies and reassemblies, reducing the maintenance cost of junction box 100.

[0055] According to some embodiments of the present invention, such as Figure 1 As shown, the outer shell 10 has a first shell wall 15 and a second shell wall 16. The first shell wall 15 has a portion of cable through holes 13, and the second shell wall 16 has another portion of cable through holes 13.

[0056] Cable through holes 13 are provided in both the first shell wall 15 and the second shell wall 16, which allows the first cable 201 and the second cable 202 to extend independently into the junction box 100 from the first shell wall 15 or the second shell wall 16, avoiding cross interference, reducing the installation complexity of the first cable 201 and the second cable 202, reducing the risk of bending of the first cable 201 and the second cable 202, and improving the safety and reliability of the cable assembly 200.

[0057] As an embodiment of this utility model, the first shell wall 15 and the second shell wall 16 can be arranged opposite to each other and spaced apart, so that the first cable 201 and the second cable 202 can be connected after extending into the junction box 100 from the corresponding cable through hole 13. This can ensure that the extension path of the first cable 201 and the second cable 202 in the junction box 100 is clear, reduce winding or crossing, and reduce the connection complexity of the first cable 201 and the second cable 202.

[0058] According to some embodiments of the present invention, such as Figure 1 As shown, the first shell wall 15 and the second shell wall 16 can be arranged opposite to each other and spaced apart, so that the first cable 201 and the second cable 202 can be connected after extending into the junction box 100 from the corresponding cable through hole 13. This ensures that the extension path of the first cable 201 and the second cable 202 in the junction box 100 is clear, reduces winding or crossing, and reduces the connection complexity of the first cable 201 and the second cable 202.

[0059] According to some embodiments of the present invention, such as Figure 1 As shown, the cable through holes 13 on the first shell wall 15 and the second shell wall 16 can be arranged one-to-one in the first direction to form aligned channels, enabling the direct and symmetrical insertion of the corresponding first cable 201 and second cable 202. This avoids bending or winding of the first cable 201 and second cable 202, reducing cable length and material waste. This allows the corresponding first cable 201 and second cable 202 to be directly connected after entering the junction box 100, further ensuring a clear extension path for the first cable 201 and second cable 202 within the junction box 100, reducing winding or crossing, and lowering the connection complexity of the first cable 201 and second cable 202.

[0060] According to some embodiments of the present invention, such as Figure 1 As shown, the housing 10 may include a housing body 17 and a cover 18. The housing body 17 defines a mounting groove with one end open. The cover 18 covers the open end of the mounting groove to define a mounting space 12. The cover 18 and the housing body 17 are detachably connected.

[0061] The housing body 17 defines an open mounting groove for mounting the connection points of the PCB board 11 and the cable assembly 200. The cover 18 covers the open end of the mounting groove to define a closed mounting space 12, preventing accidental contact with live components inside the housing 10 and avoiding the intrusion of external factors such as dust and moisture, thus improving the electrical safety performance of the junction box 100. The independent design of the housing body 17 and the cover 18 allows for modular production of the junction box 100, reducing its production cost. Furthermore, the detachable connection between the cover 18 and the housing body 17 facilitates the installation of the PCB board 11 and the connection of the cable assembly 200, as well as future maintenance and upgrades. In some embodiments of this invention, the housing body 17 and the cover 18 can be detachably connected by bolts or by snap-fit ​​connections. However, this invention is not limited to these methods; the housing body 17 and the cover 18 can also be detachably connected in other ways, as long as the cover 18 and the housing body 17 are detachably connected.

[0062] According to some embodiments of the present invention, such as Figure 3 As shown, there can be multiple functional circuits 110, and the multiple functional circuits 110 are respectively used to connect the corresponding first sub-cable 203 and second sub-cable 204.

[0063] The functional circuit 110 can be multiple. In some embodiments of this invention, there can be two, three, four, or other numbers of functional circuits 110. However, this invention is not limited to these numbers and can also have other numbers of functional circuits 110, as long as there are multiple functional circuits 110. Multiple functional circuits 110 are used to connect the corresponding first sub-cable 203 and second sub-cable 204, respectively. This allows for flexible adjustment of the signal path according to requirements, adapting to different communication needs. The functional circuit 110 can be optimized based on the characteristics (such as impedance and bandwidth) of the first sub-cable 203 and second sub-cable 204 to ensure signal integrity during transmission. For example, by matching impedance, signal reflection and distortion are reduced, improving transmission quality. The functional circuit 110 can also integrate noise suppression functions to reduce the impact of external interference on the signal. For example, by using filters or shielding technology, electromagnetic interference (EMI) and radio frequency interference (RFI) can be effectively reduced, improving the signal-to-noise ratio (SNR).

[0064] Furthermore, as a specific embodiment of this utility model, the size of the junction box 100 can be within 7cm*3.5cm*1.5cm, which can reduce the weight and size of the junction box 100 while meeting the usage requirements. The cable connector 14 can be constructed as a gland, which is a standard part. A suitable gland is reasonably selected according to the actual model of the cable assembly 200 to securely position and fix the cable assembly 200.

[0065] The first sub-cable 203 and the second sub-cable 204 may include power supply lines, signal lines, etc. As an application example on the PCB board 11 of this utility model, it may include: installing a common-mode inductor in the differential circuit; the common-mode inductor suppresses common-mode noise and filters out external common-mode interference through its ferrite core, improving signal integrity; adding an RC filter circuit to the signal line; the RC filter attenuates high-frequency noise (such as EMI) through high-frequency bypass by capacitors and current limiting by resistors, smoothing the signal waveform, reducing jitter, improving the signal-to-noise ratio, and reducing false triggering; adding TVS filters to the power supply lines and fuses to the signal lines to prevent high voltage and current overload, preventing fires or component burnout; adding ferrite beads to interference signal lines to reduce radiated interference and meet EMC standards; adding a π matching circuit to the transmission line to match the transmission line impedance with the load, reducing reflection loss, improving power transmission efficiency, optimizing signal transmission, and reducing VSWR; adding dual ferrite bead filters and filter capacitors to the power supply line to enhance high-frequency noise suppression capabilities, provide low-frequency energy reserves, suppress low-frequency ripple, and stabilize the power supply voltage. However, this invention is not limited to this. Resistors, diodes, transistors, inductors, etc., can also be added to the power supply line. Special circuit applications, such as hot-swappable circuits, can also be designed using the signal type of the cable assembly 200. In addition, the number and type of functional circuits 110 on the PCB board 11 are not fixed and can be changed according to actual applications. This can improve the compatibility and market competitiveness of the equipment, and also accurately match the characteristics of the cable assembly 200, reducing signal loss and failure rate.

[0066] The wiring steps can be as follows:

[0067] (1) Cut the first cable 201 and the second cable 202 at appropriate positions, and put the limiting head 142 of the cable connector 14 onto the first cable 201 and the second cable 202 respectively.

[0068] (2) Strip the cable sheaths of the first cable 201 and the second cable 202 to expose the first sub-cable 203 and the second sub-cable 204 inside the first cable 201 and the second cable 202 (the exposed length of the first sub-cable 203 and the second sub-cable 204 can be 20mm), and use wire strippers to strip the heads of the first sub-cable 203 and the second sub-cable 204 (the stripped head length can be 2mm).

[0069] (3) Insert the first sub-cable 203 and the second sub-cable 204 into the junction box 100 through the limiting ring 141 and the cable through hole 13, and solder the stripped wire ends to the corresponding positions on the PCB. The first sub-cable 203 and the second sub-cable 204 are connected one-to-one.

[0070] (4) Tighten the limiting head 142 and the limiting ring 141 to fix the cover 18 and the shell body 17.

[0071] (5) Wiring completed.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A junction box (100) for a cable assembly (200), characterized in that, The cable assembly (200) includes a first cable (201) and a second cable (202). The first cable (201) includes at least one first sub-cable (203), and the second cable (202) includes at least one second sub-cable (204). The first sub-cable (203) and the second sub-cable (204) correspond one-to-one. The junction box (100) includes: A housing (10) for inserting one end of the first cable (201) and one end of the second cable (202); PCB board (11) having at least one functional circuit (110) for connecting the corresponding first sub-cable (203) and second sub-cable (204).

2. The junction box (100) for a cable assembly (200) according to claim 1, characterized in that, The housing (10) defines an installation space (12), and the PCB board (11) is installed in the installation space (12). The housing (10) has a plurality of cable through holes (13), which are respectively used for the first cable (201) and the second cable (202) to pass through, so that one end of the first cable (201) and one end of the second cable (202) extend into the housing (10).

3. The junction box (100) for a cable assembly (200) according to claim 2, characterized in that, The junction box (100) further includes: a plurality of cable connectors (14), which are used for the corresponding first cable (201) or second cable (202) to pass through. The plurality of cable connectors (14) and the plurality of cable holes (13) are arranged in a one-to-one correspondence. The cable connector (14) includes a limiting ring (141) and a limiting head (142). The limiting ring (141) is annular and fixed to the outer surface of the housing (10). The limiting ring (141) is arranged around the cable hole (13) along the circumference of the corresponding cable hole (13). The cable connector (14) is annular and adapted to be sleeved on the corresponding first cable (201) or second cable (202). The limiting head (142) can be fixed to the limiting ring (141) so that the corresponding first cable (201) or second cable (202) is fixed.

4. The junction box (100) for a cable assembly (200) according to claim 3, characterized in that, The limiting head (142) is fixed to the limiting ring (141) to seal the corresponding cable through hole (13).

5. The junction box (100) for a cable assembly (200) according to claim 3, characterized in that, The outer surface of the limiting ring (141) is formed with an external thread, and the inner surface of the limiting head (142) is formed with an internal thread. The limiting head (142) can be sleeved on the limiting ring (141), and the external thread and the internal thread are connected to each other so that the limiting head (142) is fixed to the limiting ring (141).

6. The junction box (100) for a cable assembly (200) according to claim 2, characterized in that, The outer casing (10) has a first shell wall (15) and a second shell wall (16), the first shell wall (15) having a portion of the cable through-hole (13) and the second shell wall (16) having another portion of the cable through-hole (13).

7. The junction box (100) for a cable assembly (200) according to claim 6, characterized in that, The first shell wall (15) and the second shell wall (16) are opposite to each other and spaced apart.

8. The junction box (100) for a cable assembly (200) according to claim 7, characterized in that, The cable perforations (13) on the first shell wall (15) and the cable perforations (13) on the second shell wall (16) are arranged in a one-to-one correspondence along the first direction.

9. The junction box (100) for a cable assembly (200) according to claim 6, characterized in that, The outer casing (10) includes a casing body (17) and a cover (18), the casing body (17) defining an open mounting groove at one end, the cover (18) covering the open end of the mounting groove to define the mounting space (12), and the cover (18) and the casing body (17) are detachably connected.

10. The junction box (100) for a cable assembly (200) according to any one of claims 1-9, characterized in that, There are multiple functional circuits (110), and the multiple functional circuits (110) are respectively used to connect the corresponding first sub-cable (203) and second sub-cable (204).

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