Stent, connector including same and method for forming same

Abstract

The invention discloses a stent, a connector including the stent, and a method for forming the stent. A support arranged in a connector, the connector is used for connecting a cable between electronic devices, the cable comprises a wire core used for transmitting signals and a shielding layer surrounding the wire core, the shielding layer of the cable is assembled on the support, and the support is characterized in that a circuit is printed on the support; and the circuit comprises a filter circuit comprising at least one resistor and a capacitor connected in parallel, the filter circuit having a first end and a second end, the first end is electrically connected to a shield of the cable and serves as one node where the at least one resistor and the capacitor are connected in parallel and the second end of the filter circuit is grounded and serves as another node where the at least one resistor and the capacitor are connected in parallel.

Description

Technical Field

[0001] The present disclosure relates to the technical field of connectors, and particularly to a bracket disposed in a connector, which can further filter interference in a cable on the connector. Background Art

[0002] In the prior art, cables are provided between many electronic devices to transmit power and / or signals, and the cables are connected to the electronic devices through connectors. Generally, there is one or more layers of shielding layers inside the cable. The shielding layer of the cable contacts and is electrically connected to the metal shielding snap ring of the connector and is grounded, thereby restricting the interference of the external electromagnetic field on the signals transmitted by the core wires of the cable. However, due to the single-end grounding or two-end grounding of the shielding layer of the cable, a current will be induced in the shielding layer of the cable, thereby causing additional interference.

[0003] The conventional approach may be to provide a separate electromagnetic interference filter circuit on the electronic device to filter out the additional interference caused. However, in some cases, this may lead to overprotection and the interference caused may rebound and damage other normal devices.

[0004] At the same time, adding any additional circuit devices to the cable system requires strict procedures and a very high degree of foresight, which actually hinders the grounding design.

[0005] In summary, how to reduce the interference of the cable between electronic devices by the external electromagnetic field and prevent additional electromagnetic interference with a more flexible and simple electromechanical structure is an urgent problem to be solved by those skilled in the art at present. Summary of the Invention

[0006] The embodiments of the present application provide a bracket disposed in a connector to at least solve the problems in the prior art that it is impossible to filter out the additional interference introduced by the cable shielding layer itself and it is difficult to add additional circuit devices to the cable system.

[0007] According to one aspect of the embodiments of the present application, there is provided a bracket disposed in a connector. The connector is used to connect a cable between electronic devices. The cable includes a core wire for transmitting signals and a shielding layer surrounding the core wire. The shielding layer of the cable is assembled on the bracket. The feature is that a circuit is printed on the bracket; and the circuit includes a filter circuit. The filter circuit includes at least one resistor and a capacitor connected in parallel. The filter circuit has a first end and a second end. The first end is electrically connected to the shielding layer of the cable and serves as a node where at least one resistor and the capacitor are connected in parallel, and the second end of the filter circuit is grounded and serves as another node where at least one resistor and the capacitor are connected in parallel.

[0008] In this way, by using a bracket (a mechatronic bracket) forming a filter circuit to replace the conventional bracket (mechanical component) in a connector, the filter circuit on the bracket can filter out the current induced in the ground loop formed by the direct grounding of the shielding layer of the cable. Especially when a long cable of more than 15 m passes through an electrical device such as a high-power drive motor, the shielding layer will be affected by the interfering magnetic flux and a shielding circulating current will be generated. Since the electric potentials at both ends of the cable are not equal, a large potential loop current will be formed, and the loop current will have a canceling and attenuating effect on the signal transmitted by the cable. However, by providing a filter circuit on the bracket of the connector, the loop current can be filtered out, thereby reducing or even eliminating the interference to the signal transmitted by the cable.

[0009] According to an exemplary embodiment of the present application, the bracket is formed of a printed circuit board.

[0010] According to an exemplary embodiment of the present application, the bracket is formed of a mechatronic integrated device.

[0011] In this way, the bracket can be manufactured in a simple manner and structure to be able to replace the conventional bracket of the connector in terms of size and shape, and at the same time, the filtering of interfering signals can be achieved.

[0012] According to an exemplary embodiment of the present application, the bracket is formed by printing a conductive copper foil pattern on a substrate of a plastic material or an aluminum material.

[0013] In this way, different materials can be selected to form the bracket according to the actual application (for example, different requirements for the strength of the machine, etc.).

[0014] According to an exemplary embodiment of the present application, the printed circuit board is multi-layered and printed with at least one resistor and capacitor.

[0015] In this way, different layers of printed circuit boards can be selected according to the actual application (for example, the requirements for the capabilities of the resistors and capacitors in the filter circuit, etc.).

[0016] According to an exemplary embodiment of the present application, at least one resistor and capacitor are printed on the mechatronic integrated device.

[0017] According to an exemplary embodiment of the present application, the resistance value of the resistor is on the order of MΩ, and the capacitance value of the capacitor is on the order of nF.

[0018] In this way, the resistance value of the resistor or the capacitance value of the capacitor can be adjusted according to different application scenarios, so as to be suitable for various scenarios.

[0019] According to an exemplary embodiment of the present application, the bracket includes: a bracket body on which a fixing hole is formed to assemble a shielding layer of a cable; and two bracket legs extending from both end sides of the bracket body and fixedly installed in a connector to dispose the bracket in the connector, wherein the bracket legs are electrically grounded, wherein the fixing hole is electrically conductive with each bracket leg, and wherein at least one resistor and capacitor are both disposed on one of the two bracket legs or respectively disposed on corresponding ones of the two bracket legs.

[0020] In this way, the bracket can be manufactured with existing manufacturing equipment and manufacturing methods, thereby enabling control of the manufacturing cost of the bracket.

[0021] According to an exemplary embodiment of the present application, the bracket body is formed in a plate shape, and the two bracket legs extend from both end sides of the bracket body on the same plane as the bracket body or on a plane different from the plane of the bracket body.

[0022] According to an exemplary embodiment of the present application, the bracket body is formed in a three-dimensional special-shaped shape.

[0023] In this way, regular and irregular-shaped brackets with the same grounding and filtering characteristics can be manufactured, thereby being suitable for various connectors.

[0024] According to an exemplary embodiment of the present application, the shielding layer is fixed to the bracket by a metal snap ring, wherein the shielding layer is clamped in a central opening of the metal snap ring and the shielding layer contacts the metal snap ring, and mounting holes of fixing feet at both ends of the metal snap ring are matched with the fixing holes and fixed together with the fixing holes by fasteners.

[0025] According to another aspect of the embodiment of the present application, a connector is provided, including the above-mentioned bracket.

[0026] According to an exemplary embodiment of the present application, the connector is applied to an electrical connection application scenario, the electronic device includes a process variable detection instrument, a control system, and an execution system, one end of the cable is connected to the process variable detection instrument through the connector, and the other end of the cable is connected to any one of the control system and the execution system through another connector.

[0027] In this way, the connector with the bracket of the present application can be applied to various electrical connection application occasions, for example, in the application configuration of weak current instrument and meter including process variable detection instrument, control system, and execution system and the upper and lower level detection, monitoring, and execution electronic and electrical systems, and can filter high-frequency current or low-frequency current that may be induced in the ground loop in each application occasion.

[0028] According to an exemplary embodiment of the present application, the respective shielding layers at one end and / or the other end of the cable are directly grounded, thereby forming a ground loop with the ground, and the filter circuit is used to filter the current formed in the ground loop.

[0029] According to another aspect of the embodiments of the present application, a method for forming a bracket is provided. The bracket is disposed in a connector, and the connector is used to connect a cable between electronic devices. The cable includes a core for transmitting signals and a shielding layer surrounding the core. The shielding layer of the cable is assembled on the bracket. The method is characterized by including: preparing a substrate of plastic material or aluminum material; printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor, and the at least one resistor and capacitor form a filter circuit.

[0030] In this way, a bracket with a filter circuit can be manufactured with a simple manufacturing process.

[0031] According to an exemplary embodiment of the present application, the bracket is formed by a printed circuit board. Among them, printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor includes: forming a first printed circuit layer on the substrate, and the first printed circuit layer includes at least one resistor and capacitor.

[0032] According to an exemplary embodiment of the present application, printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor further includes: at least being able to form a second printed circuit layer that supplements the first printed circuit layer.

[0033] According to an exemplary embodiment of the present application, at least being able to form a second printed circuit layer that supplements the first printed circuit layer includes: forming at least one intermediate printed circuit layer between the first printed circuit layer and the second printed circuit layer; wherein, additional resistors and / or capacitors can be supplemented and formed in the second printed circuit layer.

[0034] In this way, circuit boards with various numbers of layers can be designed according to application requirements, so as to be suitable for various application scenarios.

[0035] According to an exemplary embodiment of the present application, the bracket is formed by an electromechanical integrated device.

[0036] In the embodiments of the present application, a bracket, a connector including the bracket, and a method for forming the bracket are provided. By arranging a filter circuit in the bracket, the interference in the cable on the connector can be further filtered with a more flexible and simple electromechanical structure and no additional interference will be caused. Description of the Drawings

[0037] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0038] Figures 1A to 1C is an exploded schematic view of a bracket disposed in a connector according to an embodiment of the present application.

[0039] Figure 2 is a schematic view of a cable.

[0040] Figure 3 is a circuit schematic diagram of a filter circuit disposed in the bracket.

[0041] Figure 4 is a schematic view of a metal snap ring for assembling the shielding layer of the cable in the bracket.

[0042] Figure 5 is a flowchart of a method for forming the bracket. Detailed Embodiments

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than 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 shall fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that comprises a series of steps or units or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0045] In the prior art, cables are provided between many electronic devices to transmit power and / or signals, and the cables are connected to the electronic devices through connectors. However, due to the single-end grounding or double-end grounding of the shielding layer of the cable, current will be induced in the shielding layer of the cable, thus causing additional interference. Especially when a long cable of more than 15 m, for example, passes through electrical equipment such as a high-power drive motor, the shielding layer will be affected by the interfering magnetic flux and a shielding loop current will be generated. Since the electric potentials at both ends of the cable are not equal, a large potential loop current will be formed, and the loop current will have a cancellation and attenuation effect on the signals transmitted by the cable. For example, all the electronic and electrical systems on the car body of a new high-speed train are physically connected to the car body, so the sensor network of the new high-speed train platform is interfered by floating grounding. Especially, the accuracy of the vehicle speed sensor has significant problems. For example, due to the inductive interference of the cable shielding layer, a 4-20 mA measurement error of the loop current output signal occurs. These interferences are low-energy high-frequency pulses, up to 2 KV at most, and the duration is in the millisecond level.

[0046] Moreover, if a separate electromagnetic interference filter circuit is provided on the electronic device to filter out the additional interference caused, sometimes it will lead to overprotection and the interference caused will rebound and damage other normal devices. Therefore, providing an optional configuration of the grounding filter is very important for ensuring the system performance.

[0047] In addition, adding any additional circuit devices to the cable system requires strict procedures and a very high degree of foresight. Especially for the sensing system of a new high-speed train, this actually hinders the design and / or deployment of grounding.

[0048] Furthermore, since the space inside most cable connectors is very limited, it is very difficult to add such an interference filtering mechanism inside the connector. Considering that a common grounding point is the shielding bracket of the cable shielding metal network, the inventors found in the research process that most of the interferences are actually introduced by this cable shielding network because, for example, sometimes cables up to 15 meters or even longer must pass through many electrical devices, especially high-power drive motors. These motors generate electromagnetic radiation, thus causing electromagnetic interference problems for the surrounding devices including the cable.

[0049] In order to prevent the propagation of electromagnetic interference to the ground, an effective filter needs to be installed and a correct cable grounding point is required. The inventors of the present application found that such a shielding bracket inside the cable connector is the best location to implement an effective filter, which can not only prevent electromagnetic interference from the ground, but also implement an effective filter inside the cable connector with very limited space, thus eliminating the need for any additional filter circuit devices in the cable system, simplifying the design, and increasing the robustness of the system including electrical equipment.

[0050] This application is created under the above creative concept, and the following specifically describes various aspects of this application.

[0051] Figures 1A to 1C It is an exploded view of the bracket 1 disposed in the connector according to an embodiment of the present application. In this example, the bracket 1 is formed by a printed circuit board having four printed circuit layers, where Figure 1A shows the top (first) printed circuit layer of the four printed circuit layers, Figure 1B shows one of the same two middle printed circuit layers of the four printed circuit layers, and Figure 1C shows the top (second) printed circuit layer of the four printed circuit layers. Note that the terms "top layer" and "bottom layer" described here are relative. When observed in the inverted reverse direction, the top layer can be regarded as the bottom layer, and the bottom layer can be regarded as the top layer.

[0052] In the present application, the connector is used to connect cables between electronic devices. For example, two connectors are respectively connected to both ends of the cable and each is connected to a corresponding one of the two electronic devices, so that the two electronic devices are connected by the cable to transmit various signals to each other.

[0053] The cable can be the cable 2 as Figure 2 shown. The cable 2 can include a core 21 for transmitting signals and a shielding layer 22 surrounding the core 21. Among them, the shielding layer 22 of the cable 2 can be assembled on the bracket 1, for example, through Figure 4 the metal snap ring shown, which will be described later.

[0054] As Figures 1A to 1C shown, a circuit is printed on the bracket 1; and the circuit includes a filter circuit 10. As Figure 3 shown, the filter circuit 10 includes a capacitor 102 and resistors 101a and 101b (which can be collectively referred to as resistor 101) connected in parallel with the capacitor 102, where the resistor 101a and the resistor 101b are connected in series. The filter circuit 10 has a first end 10A and a second end 10B. The first end 10A can be electrically connected to the shielding layer 22 of the cable 2 (as Figure 2 shown) and serves as a node where the resistor 101a and 101b are connected in series and then connected in parallel with the capacitor 102. The second end 10B of the filter circuit 10 is grounded and serves as another node where the resistor 101a and 101b are connected in series and then connected in parallel with the capacitor 102.

[0055] As an example, the total resistance value of resistors 101a and 101b can be on the order of MΩ, for example, between 1 - 100 MΩ. The total resistance value of resistors 101a and 101b depends on the specific application. The capacitance of capacitor 102 can be on the order of nF, for example, between 10 nF - 500 nF, and its capacitance value depends on the specific application. As an example, for instance, resistors 101a and 101b can have the same or different resistance values, such as 500 KΩ, 1000 KΩ, 1500 KΩ or larger values. The capacitance value of capacitor 102 can be 50 nF, 100 nF, 200 nF, etc., and its withstand voltage can be kV. Alternatively, resistors 101a and 101b can have different resistance values from each other.

[0056] Although, Figure 3 Two resistors and a capacitor are shown in parallel to form a filter circuit, but the configuration of the filter circuit of the present application is not limited to being formed by two resistors and a capacitor. The number of resistors and the number of capacitors can be set according to the specific application and the electrical characteristics of the resistors and capacitors, etc. For example, it can be formed by at least one resistor and at least one capacitor.

[0057] As an example, the bracket 1 can be formed by printing a conductive copper foil pattern on a substrate of plastic material or aluminum material. For example, the bracket 1 can be formed by a printed circuit board.

[0058] Alternatively, the bracket 1 can be formed by an electromechanical integrated device, and a filter circuit formed by at least one resistor and capacitor is printed on the electromechanical integrated device.

[0059] In this article, the case where the bracket 1 is formed by a printed circuit board is described as a specific example. For the configuration where a filter circuit formed by at least one resistor and capacitor is printed on an electromechanical integrated device, those of ordinary skill in the art can envision, design, and implement based on the technical content disclosed in this article.

[0060] As Figures 1A to 1C As shown, the bracket 1 can include: a bracket main body 11, on which a fixing hole 11A is formed to assemble the shielding layer 22 of the cable 2; and two bracket legs: a first bracket leg 12a and a second bracket leg 12b, which extend from both ends of the bracket main body 11 and are fixedly installed in the connector to dispose the bracket 1 in the connector. Among them, both the first bracket leg 12a and the second bracket leg 12b are electrically grounded, and the fixing hole 11A is electrically conductive with each of the first bracket leg 12a and the second bracket leg 12b to achieve electrical grounding.

[0061] As Figure 1AAs shown, in the top printed circuit layer, a resistor 101a is formed on the first support leg 12a, and a capacitor 102 is formed on the second support leg 12b. Further, as Figure 1C shown, in the bottom printed circuit layer, a resistor 101b is formed on the first support leg 12a. Further, as Figure 1B shown, in this embodiment, no resistors and capacitors are formed in the middle printed circuit board layer.

[0062] Although in this embodiment, it is shown that in the top printed circuit layer, a resistor 101a is formed on the first support leg 12a and a capacitor 102 is formed on the second support leg 12b, the present application is not limited thereto. For example, one or more resistors can be formed on the first support leg 12a, and one or more capacitors can be formed on the second support leg 12b, etc. Further, although in this embodiment it is shown that only the resistor 101b is formed in the bottom printed circuit layer, as Figure 1C shown, however, the present application is not limited thereto. For example, additional capacitors can also be formed in the bottom printed circuit layer. For example, the additional capacitors can be formed on the second support leg 12b. As an example, the bottom printed circuit layer can also have the same circuit configuration as the top printed circuit layer. Other circuit configurations of the top printed circuit layer, the middle printed circuit layer, and the bottom printed circuit layer are also conceivable as long as the formed circuit configuration can form a filter circuit on the support.

[0063] Figures 1A to 1C The structure of the support shown is only an example, and the support of the present application is not limited to the Figures 1A to 1C structure of the support shown.

[0064] For example, the support of the present application can only include the top (first) printed circuit board layer; include the top (first) printed circuit board layer and one middle printed circuit board layer; include the top (first) printed circuit board layer and two middle printed circuit board layers, etc., and resistors and capacitors can be formed in any one or more of the printed circuit board layers, which can be designed according to actual applications and current and voltage requirements.

[0065] Figures 1A to 1CBy way of example, resistors and capacitors are shown as being formed on the first support leg 12a and the second support leg 12b respectively, but this embodiment is merely an example and the present application is not limited to this example. For example, resistors and capacitors may be provided on the first support leg 12a, or resistors and capacitors may be provided on the second support leg 12b, or resistors and / or capacitors may be provided on the first support leg 12a and resistors and / or capacitors may be provided on the second support leg 12b, and so on. The arrangements of resistors and capacitors on the first support leg 12a and the second support leg 12b that can be conceived by those skilled in the art are all within the scope of the present disclosure.

[0066] As Figures 1A to 1C shown, in this example, the support body 11 may be formed in a plate shape, and the first support leg 12a and the second support leg 12b may each extend from both ends of the support body 11 on the same plane as the support body 11. However, the present application is not limited thereto. For example, the first support leg 12a and the second support leg 12b may each extend from both ends of the support body 11 on a plane different from the plane of the support body 11. Alternatively, the support body 11 may also be formed in a three-dimensional irregular shape.

[0067] As described above, the shielding layer 22 of the cable 2 can be assembled to the support 1 by Figure 4 the metal snap ring shown. As Figure 4 shown, the metal snap ring 4 may include a central opening 40 and fixing feet 41 and 42 at both ends of the metal snap ring 4. The shielding layer 22 of the cable 2 can be clamped in the central opening 40 of the metal snap ring 4 and the shielding layer 22 contacts the snap ring wall 43 that defines the central opening 40 of the metal snap ring 4. The fixing feet 41 and 42 at both ends of the metal snap ring 4 have mounting holes, and the mounting holes can be aligned and matched with the fixing holes 11A on the support body 11 and the mounting holes and the fixing holes 11A are fixed together by fasteners 44, thereby assembling the shielding layer 22 of the cable 2 to the support 1.

[0068] The support of the present application described above is printed with a filter circuit, so it can not only filter out interference signals in the ground loop, but also implement an effective filter inside a cable connector with very limited space, thus eliminating the need for any additional filter circuit equipment in the electronic device or cable system, simplifying the design, and increasing the robustness of the system including the electrical equipment.

[0069] The present application also provides a connector, which includes Figures 1A to 1CThe bracket shown. The connector can filter the current induced in the shielding layer of the cable connected to the connector, thereby preventing additional electromagnetic interference, especially in application scenarios where the cable is particularly long, such as in high-speed trains. Sometimes, cables up to 15 meters or even longer must pass through electrical equipment such as high-power drive motors.

[0070] Specifically, the connector can be applied to electrical connection application scenarios. As an example, the electronic device can include a process variable detection instrument, a control system, and an execution system. One end of the cable is connected to the process variable detection instrument through the connector, and the other end of the cable is connected to either the control system or the execution system through another connector. The respective shielding layers at one end and / or the other end of the cable are directly grounded, thereby forming a ground loop with the ground. The filter circuit is used to filter the current induced in the ground loop.

[0071] As an example, the process variable instrument can include the sensor system of the train. The sensor system can include, for example, the vehicle speed sensor of the train. The control system can include a vehicle speed controller for controlling the vehicle speed of the train, and the execution system includes brakes, actuators, etc. Thus, when applying the connector of the present application to the application scenario of a high-speed train, it is possible to filter the interference current signal in the cable connecting the vehicle speed sensor to the control system or the execution system, such as a low-energy high-frequency pulse up to 2 KV and with a duration of milliseconds, thereby being able to provide the accuracy of the vehicle speed that the vehicle speed sensor should provide, and thus being able to provide the safety of the train.

[0072] The present application also provides a method for forming Figures 1A to 1C the bracket shown. Among them, Figure 5 is a flowchart of the method for forming the bracket. As shown in Figure 5 , the method includes: Step S1, preparing a substrate of plastic material or aluminum material having the shape and structure of the bracket shown in, for example, Figure 1A ; and Step S2, printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor, and the at least one resistor and capacitor form a filter circuit.

[0073] As an example, Step S2 of printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor can include: forming a first printed circuit layer on the substrate, the first printed circuit layer including at least one resistor and capacitor, as shown in Figure 1A ; and at least forming a second printed circuit layer supplementary to the first printed circuit layer, wherein additional resistors are formed in the second printed circuit layer, as shown in Figure 1C . Alternatively, additional resistors and / or capacitors can be formed in the second printed circuit layer.

[0074] Further, the second printed circuit layer that can be formed to supplement the first printed circuit layer can include forming at least one intermediate printed circuit layer between the first printed circuit layer and the second printed circuit layer, such as Figure 1B the intermediate printed circuit layer shown.

[0075] In the present application, a bracket, a connector including the bracket, and a method for forming the bracket are provided. By using a bracket formed with a filter circuit to replace the conventional bracket in the connector, the filter circuit on the bracket can filter out the induced current in the ground loop formed by directly grounding the shielding layer of the cable.

[0076] Specifically, the bracket of the present application can have at least the following advantages:

[0077] Error prevention in cable system design;

[0078] Improved flexibility in deploying ground filters as needed;

[0079] Able to stably sense the network using electromechanical integrated device components;

[0080] Lightweighting of the connector;

[0081] Able to use plastic material to replace aluminum material to form the bracket;

[0082] The electromechanical shielding bracket integrated with the filter circuit formed by the required resistors and capacitors can contribute to correct grounding and eliminate interference of the connected electronic devices.

[0083] In the above embodiments of the present application, the descriptions of the respective embodiments have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0084] The above are only the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A bracket disposed in a connector, the connector being used for connecting a cable between electronic devices, the cable including a core for transmitting signals and a shielding layer surrounding the core, and the shielding layer of the cable being assembled on the bracket. Characterized in that: A circuit is printed on the bracket; and the circuit includes a filter circuit, the filter circuit including at least one resistor and a capacitor connected in parallel, the filter circuit having a first end and a second end, the first end being electrically connected to the shielding layer of the cable and serving as a node where the at least one resistor and the capacitor are connected in parallel together, and the second end of the filter circuit being grounded and serving as another node where the at least one resistor and the capacitor are connected in parallel together.

2. The bracket according to claim 1, Characterized in that: The bracket is formed by a printed circuit board.

3. The bracket according to claim 1, Characterized in that: The bracket is formed by an electromechanical integrated device.

4. The bracket according to claim 1, Characterized in that: The bracket is formed by printing a conductive copper foil pattern on a substrate of plastic material or aluminum material.

5. The bracket according to claim 2, Characterized in that: The printed circuit board is multi-layered and printed with the at least one resistor and capacitor.

6. The bracket according to claim 3, Characterized in that: The at least one resistor and capacitor are printed on the electromechanical integrated device.

7. The bracket according to claim 1, Characterized in that: The resistance value of the resistor is on the order of MΩ, and the capacitance value of the capacitor is on the order of nF.

8. The bracket according to any one of claims 1 to 7, Characterized in that: The bracket includes: A bracket main body, on which fixing holes are formed to assemble the shielding layer of the cable; and Two bracket legs, extending from both ends of the bracket main body and fixedly installed in the connector to dispose the bracket in the connector, wherein the bracket legs are electrically grounded, wherein the fixing holes are electrically conductive with each of the bracket legs, wherein the at least one resistor and the capacitor are both disposed on one of the two bracket legs or are respectively disposed on corresponding ones of the two bracket legs.

9. The bracket according to claim 8, Characterized in that: The bracket main body is formed in a plate shape, and the two bracket legs extend from both ends of the bracket main body on the same plane as the bracket main body or on a plane different from the plane of the bracket main body.

10. The bracket according to claim 8, Characterized in that: The bracket main body is formed in a three-dimensional special-shaped shape.

11. The bracket according to claim 8, Characterized in that: The shielding layer is fixed on the bracket by a metal snap ring, wherein the shielding layer is clamped in the central opening of the metal snap ring and the shielding layer contacts the metal snap ring, and the mounting holes of the fixing feet at both ends of the metal snap ring are matched with the fixing holes and are fixed together with the fixing holes by fasteners.

12. A connector, comprising a bracket according to any one of claims 1 to 11.

13. The connector according to claim 12, wherein, the connector is applied to an electrical connection application scenario, the electronic device includes a process variable detection instrument, a control system and an execution system, one end of the cable is connected to the process variable detection instrument through the connector, and the other end of the cable is connected to any one of the control system and the execution system through another connector.

14. The connector according to claim 13, wherein, the respective shielding layers at one end and / or the other end of the cable are directly grounded, thereby forming a ground loop with the ground, and the filter circuit is used to filter the current formed in the ground loop.

15. A method for forming a bracket, the bracket is arranged in a connector, the connector is used to connect a cable between electronic devices, the cable includes a core for transmitting signals and a shielding layer surrounding the core, and the shielding layer of the cable is assembled on the bracket, wherein, the method includes: preparing a substrate of plastic material or aluminum material; printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor, and the at least one resistor and the capacitor form a filter circuit.

16. The method according to claim 15, wherein, the bracket is formed by a printed circuit board, and printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor includes: forming a first printed circuit layer on the substrate, and the first printed circuit layer includes the at least one resistor and the capacitor.

17. The method according to claim 16, wherein, printing a pattern layer of conductive copper foil on the substrate to form at least one resistor and capacitor further includes: forming at least a second printed circuit layer that can be supplemented to the first printed circuit layer.

18. The method according to claim 17, wherein, forming at least a second printed circuit layer that can be supplemented to the first printed circuit layer includes: supplementing and forming one or more intermediate printed circuit layers between the first printed circuit layer and the second printed circuit layer; wherein, additional resistors and / or capacitors are formed in the second printed circuit layer.

19. The method according to claim 15, wherein, the bracket is formed by an electromechanical integration device.

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