A filter connector and power supply system

Abstract

The utility model relates to the field of electronic power, and discloses a filter connector and a power supply system, wherein the filter connector includes a connector joint and a filter element, wherein the connector joint is used for detachably electrically connecting to a device to be filtered, and the filter element includes a first pin and a second pin, wherein the first pin is electrically connected to the connector joint, and the second pin is used for grounding. Since the connector joint is detachably electrically connected to the device to be filtered, the filter connector can be quickly installed on the device to be filtered through the connector joint, and the connector joint has low requirements on the structural form and installation environment of the device to be filtered, so that the filter connector can be applied to different power supply systems, effectively improving the compatibility of the filter connector, expanding the adaptation scenarios of the filter connector, and also making the filter connector have a certain degree of reuse, thereby helping to reduce the cost of the power supply system using the filter connector.

Description

Technical Field

[0001] The utility model relates to the field of electronic power, in particular to a filter connector and a power supply system. Background Art

[0002] The power supply system is widely used in various power supply occasions such as servers, data centers, base stations, etc., for receiving AC power provided by AC power supply and outputting DC power to DC load. The electromagnetic compatibility of the power supply system needs to meet certain design requirements to ensure that each unit module can operate reliably in the same electromagnetic environment. At present, a common solution to reduce electromagnetic interference is to set ceramic capacitors on the input side of the DC copper busbar of the power supply system, and use ceramic capacitors to reduce differential mode interference and common mode interference in the circuit. This solution requires a lot of optimization of the board. If the optimization fails to meet the standard, it needs to be repeatedly revised and optimized, resulting in a long production cycle and a large workload. Another solution is to add a magnetic ring to the DC copper busbar to achieve the purpose of reducing electromagnetic interference through the magnetic ring. However, due to the large differences in the shape and installation environment of the DC copper busbars of different power supply systems, it is difficult to unify the specifications of the magnetic ring, which leads to high design and production costs. Utility Model Content

[0003] The utility model provides a filter connector and a power supply system, so as to realize the rapid installation of the filter connector in the power supply system and improve the adaptability of the filter connector.

[0004] In the first aspect, the present application provides a filter connector, which includes a connector joint and a filter element. Among them, the connector joint is used to be detachably electrically connected to the device to be filtered, and the filter element includes a first pin and a second pin, the first pin is electrically connected to the connector joint, and the second pin is used for grounding. The noise signal of the device to be filtered can be transmitted to the filter element through the connector joint, and then grounded through the second pin after being processed by the filter element, thereby guiding the noise signal to the ground, improving the signal transmission quality of the device to be filtered. In addition, since the connector joint is detachably electrically connected to the device to be filtered, the filter connector can be quickly installed on the device to be filtered through the connector joint, and the connector joint has low requirements on the structural form and installation environment of the device to be filtered, so that the filter connector can be applied to different power supply systems, effectively improving the compatibility of the filter connector, expanding the adaptation scenarios of the filter connector, and also making the filter connector have a certain degree of reuse, thereby helping to reduce the cost of the power supply system using the filter connector.

[0005] In some embodiments, the filter connector may further include a first connection terminal and a second connection terminal. One end of the first connection terminal is detachably electrically connected to the first pin, the other end of the first connection terminal is electrically connected to the connector joint, one end of the second connection terminal is detachably electrically connected to the second pin, and the other end of the second connection terminal is used for grounding. By detachably electrically connecting the first pin and the second pin to the two connection terminals, the filter element can be detachably installed in the filter connector. Therefore, the filter element can be replaced according to the specific filtering requirements of the power supply system, so that the filter connector can achieve the required filtering effect for different power supply systems, thereby making the electromagnetic compatibility of the power supply system using the filter connector meet the design requirements.

[0006] In some embodiments, the filter connector may further include a first elastic member, the first elastic member is annularly bent, the first elastic member is provided with a first sliding hole, one end of the first elastic member is plugged into the first sliding hole, and during the process of the first elastic member switching to the energy storage state, the distance between the one end of the first elastic member and the inner wall of the first sliding hole increases. Part of the first connection terminal and the first pin are respectively inserted into the first sliding hole, and the part of the first connection terminal and the first pin are located between one end of the first elastic member and the inner wall of the first sliding hole. When the first elastic member is in the energy release or partial energy release state, one end of the first elastic member can press the part of the first connection terminal and the first pin between it and the inner wall of the first sliding hole, so that the first pin and the first connection terminal can be reliably electrically connected; when the first elastic member is converted from the energy release or partial energy release state to the energy storage state, the first pin can be freely plugged between one end of the first elastic member and the inner wall of the first sliding hole. Therefore, the detachable electrical connection between the first pin and the first connection terminal can be achieved by the morphological transformation of the first elastic member.

[0007] Based on the same concept, the filter connector may also include a second elastic member, the second elastic member is annularly bent, the second elastic member is provided with a second sliding hole, one end of the second elastic member is plugged into the second sliding hole, and during the process of the second elastic member switching to the energy storage state, the distance between one end of the second elastic member and the inner wall of the second sliding hole increases. The part of the second connection terminal and the second pin are respectively inserted into the second sliding hole, and the part of the second connection terminal and the second pin are located between one end of the second elastic member and the inner wall of the second sliding hole. When the second elastic member is in the energy release or partial energy release state, one end of the second elastic member can press the part of the second connection terminal and the second pin between it and the inner wall of the second sliding hole, so that the second pin and the second connection terminal can be reliably electrically connected; when the second elastic member is converted from the energy release or partial energy release state to the energy storage state, the second pin can be freely plugged between one end of the second elastic member and the inner wall of the second sliding hole. Therefore, the detachable electrical connection between the second pin and the second connection terminal can be achieved by the morphological transformation of the second elastic member.

[0008] In some embodiments, the filter connector includes a first nut. The second connection terminal is a flat structure, the first nut is fixed to a side surface of the second connection terminal, and the second connection terminal is provided with a first through hole at a position corresponding to the threaded hole of the first nut. With this design, the second connection terminal can be crimped and fixed to the wire crimping terminal through the first nut and an adapted bolt, and then electrically connected to the ground through a cable connected to the wire crimping terminal.

[0009] In some embodiments, the filter connector includes a first fixed shell and a first fastener. The top wall of the first fixed shell is provided with a first threaded hole, the first fastener is installed in the first threaded hole, a portion of the first connection terminal is located in the first fixed shell, and a portion of the first connection terminal is located between the end of the first fastener and the bottom wall of the first fixed shell, and the first pin is inserted between the portion of the first connection terminal and the bottom wall of the first fixed shell. In this way, by twisting the first fastener, the position of the end of the first fastener in the first fixed shell can be adjusted, so that the first fastener can apply pressure to the first connection terminal or cancel the pressure on the first connection terminal. The first connection terminal can be deformed when subjected to the pressure of the first fastener, and the first pin is crimped between the first connection terminal and the bottom wall of the first fixed shell, so that the first pin is reliably electrically connected to the first connection terminal; the first connection terminal returns to its original state when not subjected to the pressure of the first fastener, and the first pin can be inserted or withdrawn between the first connection terminal and the bottom wall of the first fixed shell, so as to realize the installation and disassembly of the filter element in the filter connector.

[0010] Similarly, the filter connector includes a second fixed shell and a second fastener. The top wall of the second fixed shell is provided with a second threaded hole, the second fastener is installed in the second threaded hole, part of the second connection terminal is located in the second fixed shell, and part of the second connection terminal is located between the end of the second fastener and the bottom wall of the second fixed shell, and the second pin is inserted between part of the second connection terminal and the bottom wall of the second fixed shell. In this way, by twisting the second fastener, the position of the end of the second fastener in the second fixed shell can be adjusted, so that the second fastener can apply pressure to the second connection terminal or cancel the pressure on the second connection terminal. The second connection terminal can be deformed when subjected to the pressure of the second fastener, and the second pin is crimped between the second connection terminal and the bottom wall of the second fixed shell, so that the second pin is reliably electrically connected to the second connection terminal; the second connection terminal returns to its original state when not subjected to the pressure of the second fastener, and the second pin can be inserted or withdrawn between the second connection terminal and the bottom wall of the second fixed shell, so as to realize the installation and disassembly of the filter element in the filter connector.

[0011] In some embodiments, the filter connector further includes a second nut. The second connection terminal is a bent structure, and the second connection terminal includes a plate-like body located outside the second fixed shell, and the second nut is fixed to one side of the plate-like body, and a second through hole is provided at a position of the plate-like body corresponding to the threaded hole of the second nut. With this design, the second connection terminal can be crimped and fixed to the crimping terminal through the second nut and an adapted bolt, and then electrically connected to the ground through a cable connected to the crimping terminal.

[0012] In some embodiments, the filter connector further comprises a housing, the housing comprises a first receiving groove and a second receiving groove, the connector joint is arranged in the first receiving groove, and the filter element is arranged in the second receiving groove. The housing can not only fix the connector joint and the filter element, but also protect the connector joint and the filter element, and reduce the damage of the connector joint and the filter element under the action of external force.

[0013] In some embodiments, the filter connector may further include a cover plate. The first housing includes a first side wall, a second side wall, and a third side wall, wherein the second side wall and the third side wall are respectively connected to both sides of the first side wall, the second receiving groove is provided on the first side wall, and the second side wall and the third side wall are respectively provided with guide grooves at one end close to the first side wall, and the cover plate is slidably provided in the guide groove, and the cover plate may expose the second receiving groove during the sliding process, or hide the second receiving groove. The cover plate may protect the filter element in the second receiving groove, reduce the damage or corrosion of the filter element by the external environment, and extend the service life of the filter element.

[0014] In some embodiments, the connector joint may be a tail clip, and the connector joint may be snap-connected to the device to be filtered, so as to improve the convenience of disassembly and assembly of the connector joint and the device to be filtered.

[0015] In some implementation schemes, the filter element may be a capacitor, an inductor, a π-type filter, or a filter board with components such as capacitors and resistors.

[0016] In a second aspect, the present application further provides a power supply system, which includes a rectifier unit, a DC copper busbar, and a filter connector in any of the embodiments of the first aspect, wherein the output end of the rectifier unit is connected to the DC copper busbar, and the DC copper busbar is a device to be filtered in each of the embodiments of the first aspect. The filter connector can establish a noise return path between the DC copper busbar and the ground, thereby improving the radiation emission caused by the coupling of the DC copper busbar with each unit module including the rectifier unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of an application scenario of a power supply system provided by an embodiment of the utility model;

[0018] Figure 2A schematic diagram of an application scenario of a filter connector provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of a filter connector provided in an embodiment of the present application;

[0020] Figure 4 A schematic structural diagram of another filter connector provided by an embodiment of the utility model;

[0021] Figure 5 A schematic structural diagram of another filter connector provided in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1000-power system; 100-rectifier unit; 200-power distribution unit; 300-DC copper busbar; 300a-positive DC copper busbar; 300b-negative DC copper busbar;

[0024] 400 - filter connector; 410 - connector joint; 420 - filter element; 421 - first pin; 422 - second pin; 430 - first connection terminal;

[0025] 440 - second connection terminal; 441 - first through hole; 442 - plate-shaped body; 4421 - second through hole; 450 - first elastic member; 451 - first sliding hole;

[0026] 460 - second elastic member; 461 - second sliding hole; 470 - first nut; 480 - first fixed shell; 481 - top wall of the first fixed shell;

[0027] 4811 - first threaded hole; 482 - bottom wall of first fixed shell; 490 - first fastener; 4100 - second fixed shell;

[0028] 4101-top wall of the second fixed shell; 41011-second threaded hole; 4102-bottom wall of the second fixed shell; 4110-second fastener; 4120-shell;

[0029] 4121-first receiving groove; 4122-second receiving groove; 4123-first side wall; 4124-second side wall; 41241-guide groove;

[0030] 4125-third side wall; 4130-cover plate; 2000-AC power supply; 3000-DC load. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the utility model clearer, the embodiments of the utility model will be further described in detail in conjunction with the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be understood as being limited to the embodiments described herein. The same figure marks in the figures represent the same or similar structures, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the embodiments of the utility model are all explained with the accompanying drawings as examples, but changes can be made as needed, and the changes made are all included in the scope of protection of the utility model. The drawings of the embodiments of the utility model are only used to illustrate the relative position relationship and do not represent the true proportion.

[0032] It should be noted that specific details are described in the following description to facilitate understanding of the present invention. However, the embodiments of the present invention can be implemented in a variety of other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the embodiments of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Figure 1 A schematic diagram of an application scenario of a power supply system 1000 provided in an embodiment of the present utility model. Figure 1 As shown, the power supply system 1000 can be applied to power equipment such as communication power supply, energy storage cabinet, charging pile, etc. It can be used to receive AC power provided by AC power supply 2000 and output DC power to DC load 3000, wherein AC power supply 2000 includes mains power or uninterruptible power supply, etc., and DC load 3000 includes server, base station, household appliance, lighting equipment or electric vehicle, etc. The power supply system 1000 includes a rectifier unit 100 and a distribution unit 200, wherein the input end of the rectifier unit 100 can be used to connect to the AC power supply 2000, the output end of the rectifier unit 100 is connected to the input end of the distribution unit 200, and the output end of the distribution unit 200 can be used to connect to the DC load 3000. The rectifier unit 100 is used to convert the AC power from the AC power supply 2000 into DC power and then output it to the distribution unit 200, and the distribution unit 200 is used to distribute the DC power to the DC load 3000, and provide the DC load 3000 with appropriate voltage and current to ensure the reliable operation of the DC load 3000.

[0034] Among them, the output end of the rectifier unit 100 is connected to the input end of the distribution unit 200 through the DC copper bus 300. Specifically, the positive output end of the rectifier unit 100 and the positive input end of the distribution unit 200 can be connected through the positive DC copper bus 300a, and the negative output end of the rectifier unit 100 and the negative input end of the distribution unit 200 can be electrically connected through the negative DC copper bus 300b.

[0035] In practical applications, the electromagnetic compatibility (EC) of the power supply system 1000 needs to meet certain design requirements to ensure that the various unit modules can operate reliably in the same electromagnetic environment. According to the long-term electromagnetic wave interference (radiated emission, RE) test of the power supply frame, it is found that the interference signal of the power supply system 1000 is often released through the coupling of the DC copper bus 300, so adding a filter device to the DC copper bus 300 is an effective way to reduce electromagnetic interference.

[0036] At present, a common design is to set a ceramic capacitor on the input side board of the DC copper busbar 300, and use the ceramic capacitor to reduce the differential mode interference and common mode interference in the circuit. This solution requires a lot of optimization of the board. If the optimization fails to meet the standard, it needs to be repeatedly revised and optimized, resulting in a long production cycle and a large workload. Another design is to add a magnetic ring to the DC copper busbar 300 to achieve the purpose of reducing electromagnetic interference. However, due to the large differences in the shape and installation environment of the DC copper busbar 300 of different power supply systems 1000, it is difficult to unify the specifications of the magnetic ring, which in turn leads to high design and production costs.

[0037] In view of this, the embodiment of the utility model provides a filter connector that can be applied to the power supply system 1000. The filter connector can not only be quickly installed in the power supply system 1000, but also has high adaptability and can meet the filtering requirements of different power supply systems 1000. The filter connector provided by the embodiment of the utility model is specifically described below in conjunction with the accompanying drawings.

[0038] Figure 2 This is a schematic diagram of an application scenario of the filter connector 400 provided in an embodiment of the utility model. Figure 2 As shown, in the embodiment of the utility model, the filter connector 400 can be arranged on the DC copper bus 300 of the power supply system 1000. The power supply system 1000 may include one or more filter connectors 400, and one or more filter connectors 400 can be arranged on the positive DC copper bus 300a or the negative DC copper bus 300b. Figure 2 In the illustrated embodiment, the power supply system 1000 includes two filter connectors 400 , wherein one filter connector 400 is disposed on the positive DC copper bus 300 a , and the other filter connector 400 is disposed on the negative DC copper bus 300 b .

[0039] In an embodiment of the utility model, the input end of the filter connector 400 is electrically connected to the DC copper bus 300, and the output end of the filter connector 400 is grounded, so as to establish a noise return path between the DC copper bus 300 and the ground of the power supply system 1000, and improve the radiation emission caused by the coupling of the unit module and the DC copper bus 300. In one implementation, the ground can be the shell of the power equipment used in the power supply system. For example, when the power equipment is a communication power supply, an energy storage cabinet or a charging pile, the ground can be the shell of the communication power supply, the shell of the energy storage cabinet or the shell of the charging pile. In another implementation, the ground can also be a grounding copper bus of the power equipment. In addition, when the power supply system 1000 includes multiple filter connectors 400, the output ends of the multiple filter connectors 400 can be electrically connected to the same ground or to different grounds, and this application does not limit this.

[0040] Figure 3 This is a schematic diagram of the structure of a filter connector 400 provided in an embodiment of the present application. Figure 3 As shown, in an embodiment of the utility model, the filter connector 400 may include a connector joint 410 and a filter element 420. The connector joint 410 is used to be detachably electrically connected to the device to be filtered. For example, when the filter connector 400 is applied to the above-mentioned power supply system, the device to be filtered is the positive DC copper bus or the negative DC copper bus of the power supply system. The filter element 420 includes a first pin 421 and a second pin 422. The first pin 421 can be electrically connected to the connector joint 410, and the second pin 422 can be used for grounding. The first pin 421 can be an input pin of the filter element 420, and the second pin 422 can be an output pin of the filter element 420. The first pin 421 is electrically connected to the connector joint 410, and is further electrically connected to the device to be filtered through the connector joint 410. The second pin 422 is electrically connected to the ground. Therefore, the connector joint 410 can be regarded as the input end of the filter connector 400, and the second pin 422 can be regarded as the output end of the filter connector. The noise signal of the device to be filtered is transmitted to the filter element 420 through the connector joint 410, and is grounded through the second pin 422 after being processed by the filter element 420, thereby guiding the noise signal to the ground, improving the signal transmission quality of the device to be filtered.

[0041] Among them, the connector joint 410 is detachably electrically connected to the device to be filtered, and the filter connector can be quickly installed on the device to be filtered through the connector joint 410. In addition, the connector joint 410 has low requirements on the structural form and installation environment of the device to be filtered. Therefore, the filter connector 400 can be applied to different power supply systems, which effectively improves the compatibility of the filter connector 400, expands the adaptation scenarios of the filter connector 400, and also makes the filter connector 400 have a certain degree of reuse, thereby helping to reduce the cost of the power supply system using the filter connector 400.

[0042] In some embodiments, the connector joint 410 may be a tail clip, and the connector joint 410 may be clamped to the device to be filtered, or may be fixed to the device to be filtered by means of a crimping terminal, a screw crimping, etc. When the connector joint 410 is connected to the device to be filtered through a terminal, the height of the tail clip may be flexibly adjusted to accommodate copper bars of different sizes.

[0043] Continue to refer Figure 3 In the embodiment of the utility model, the filter connector 400 may further include a first connection terminal 430 and a second connection terminal 440, one end of the first connection terminal 430 is detachably electrically connected to the first pin 421, the other end of the first connection terminal 430 is electrically connected to the connector joint 410, one end of the second connection terminal 440 is detachably electrically connected to the second pin 422, and the other end of the second connection terminal 440 is used for grounding. By detachably electrically connecting the first pin 421 and the second pin 422 to the two connection terminals, the filter element 420 can be detachably installed in the filter connector 400, so the filter element 420 can be replaced according to the specific filtering requirements of the power supply system, so that the filter connector 400 can achieve the required filtering effect for different power supply systems, and then the electromagnetic compatibility of the power supply system using the filter connector 400 meets the design requirements.

[0044] Exemplarily, the filter element 420 may be a capacitor (eg, a ceramic capacitor, a film capacitor, an electrolytic capacitor, etc.), an inductor, a π-type filter, or a filter board with components such as capacitors and resistors, etc.

[0045] In some embodiments, the filter connector 400 further includes a first elastic member 450, which is annularly bent and provided with a first sliding hole 451. One end of the first elastic member 450 is plugged into the first sliding hole 451. During the process of the first elastic member 450 switching to the energy storage state, the distance between one end of the first elastic member 450 and the inner wall of the first sliding hole 451 increases. A portion of the first connection terminal 430 and the first pin 421 are respectively inserted into the first sliding hole 451, and a portion of the first connection terminal 430 and the first pin 421 are located between one end of the first elastic member 450 and the inner wall of the first sliding hole 451, and the first pin 421 is located between a portion of the first connection terminal 430 and the inner wall of the first sliding hole 451. When the first elastic member 450 is in an energy release or partial energy release state, one end of the first elastic member 450 can press part of the first connection terminal 430 and the first pin 421 between it and the inner wall of the first sliding hole 451, so that a reliable electrical connection can be achieved between the first pin 421 and the first connection terminal 430; when one end of the first elastic member 450 slides in a direction away from the inner wall of the first sliding hole 451 under the action of an external force, the first elastic member 450 is converted from an energy release or partial energy release state to an energy storage state, and the distance between one end of the first elastic member 450 and the inner wall of the first sliding hole 451 increases. The first pin 421 can be inserted between one end of the first elastic member 450 and the inner wall of the first sliding hole 451, or can be pulled out from between one end of the first elastic member 450 and the inner wall of the first sliding hole 451, so as to achieve a detachable electrical connection between the first pin 421 and the first connection terminal 430.

[0046] Similarly, the filter connector 400 further includes a second elastic member 460, which is annularly bent and provided with a second sliding hole 461. One end of the second elastic member 460 is plugged into the second sliding hole 461. During the process of the second elastic member 460 switching to the energy storage state, the distance between one end of the second elastic member 460 and the inner wall of the second sliding hole 461 increases. A portion of the second connection terminal 440 and the second pin 422 are respectively inserted into the second sliding hole 461, and the portion of the second connection terminal 440 and the second pin 422 are located between one end of the second elastic member 460 and the inner wall of the second sliding hole 461, and the second pin 422 is located between a portion of the second connection terminal 440 and the inner wall of the second sliding hole 461. When the second elastic member 460 is in an energy release or partial energy release state, one end of the second elastic member 460 can press part of the second connection terminal 440 and the second pin 422 between it and the inner wall of the second sliding hole 461, so that a reliable electrical connection can be achieved between the second pin 422 and the second connection terminal 440; when one end of the second elastic member 460 slides in a direction away from the inner wall of the second sliding hole 461 under the action of an external force, the second elastic member 460 is converted from an energy release or partial energy release state to an energy storage state, and the distance between one end of the second elastic member 460 and the inner wall of the second sliding hole 461 increases. The second pin 422 can be inserted between one end of the second elastic member 460 and the inner wall of the second sliding hole 461, or can be pulled out from between one end of the second elastic member 460 and the inner wall of the second sliding hole 461, so as to achieve a detachable electrical connection between the second pin 422 and the second connection terminal 440.

[0047] It can be seen from the above description that when the first elastic member 450 and the second elastic member 460 are both in the energy release or partial energy release state, the first pin 421 can be reliably fixed between one end of the first elastic member 450 and the inner wall of the first sliding hole 451, and the second pin 422 can be reliably fixed between one end of the second elastic member 460 and the inner wall of the second sliding hole 461, so that the filter element 420 can be firmly installed in the filter connector 400, and the first pin 421 and the first connecting terminal 430, and the second pin 422 and the second connecting terminal 440 can be reliably electrically connected; when the first elastic member 450 and the second elastic member 460 are both in the energy storage state, the first pin 421 can be inserted or removed between one end of the first elastic member 450 and the inner wall of the first sliding hole 451, and the second pin 422 can be inserted or removed between one end of the second elastic member 460 and the inner wall of the second sliding hole 461, so as to realize the installation and removal of the filter element 420 in the filter connector 400.

[0048] It is worth mentioning that in addition to the above-mentioned method of elastically crimping the first elastic member 450 and the second elastic member 460, in some other embodiments, electrical connection can be achieved between the first connecting terminal 430 and the first pin 421, and between the second connecting terminal 440 and the second pin 422 by means of crimping terminals, etc., and the details will not be repeated here.

[0049] Please continue to refer to Figure 3 In the embodiment of the utility model, the second connection terminal 440 can be approximately a flat plate structure, and the filter connector 400 can also include a first nut 470, which can be fixed to one side of the second connection terminal 440, and the second connection terminal 440 is provided with a first through hole 441 at a position corresponding to the threaded hole of the first nut 470. The second connection terminal 440 can be electrically connected to the ground through a grounding member, wherein the grounding member can include an OT terminal and a cable, one end of the cable is electrically connected to the ground, and the other end of the cable is fixed to the OT terminal, and the OT terminal can be locked to the second connection terminal 440 by a bolt matched with the first nut 470, thereby realizing the electrical connection between the second connection terminal 440 and the OT terminal, and then realizing the electrical connection between the second connection terminal 440 and the ground.

[0050] Figure 4 This is a schematic diagram of the structure of another filter connector 400 provided by an embodiment of the utility model. Figure 4 As shown, in the embodiment of the utility model, the filter connector 400 can also include a housing connector joint 410, a filter element 420, a first connection terminal 430, and a second connection terminal 440. The connector joint 410 is detachably electrically connected to the device to be filtered, one end of the first connection terminal 430 is detachably electrically connected to the first pin 421 of the filter element 420, the other end of the first connection terminal 430 is electrically connected to the connector joint 410, one end of the second connection terminal 440 is detachably electrically connected to the second pin 422 of the filter element 420, and the other end of the second connection terminal 440 is used for grounding. Among them, the types and structural forms of the connector joint 410 and the filter element 420 can be designed with reference to the above-mentioned embodiments, and will not be repeated here.

[0051] In this embodiment, the filter connector 400 may include a first fixed shell 480 and a first fastener 490. The first fixed shell 480 includes a top wall and a bottom wall that are arranged opposite to each other, and a first threaded hole 4811 is provided on the top wall 481 of the first fixed shell 480. The first fastener 490 is installed in the first threaded hole 4811. Through the threaded cooperation between the first fastener 490 and the first threaded hole 4811, the position of the end of the first fastener 490 in the first fixed shell 480 can be conveniently adjusted. A portion of the first connection terminal 430 is located in the first fixed shell 480, and a portion of the first connection terminal 430 is located between the end of the first fastener 490 and the bottom wall 482 of the first fixed shell 480, and the first pin 421 is inserted between a portion of the first connection terminal 430 and the bottom wall 482 of the first fixed shell 480. Thus, by screwing the first fastener 490 downward, the end of the first fastener 490 can press down the first connection terminal 430, causing the first connection terminal 430 to deform, thereby reducing the gap between the first connection terminal 430 and the bottom wall 482 of the first fixed shell 480, so that the first pin 421 can be pressed between the first connection terminal 430 and the bottom wall 482 of the first fixed shell 480, so that the first pin 421 can be reliably electrically connected to the first connection terminal 430. Conversely, by screwing the first fastener 490 upward, the pressing effect of the first fastener 490 on the first connection terminal 430 can be cancelled, so that the shape of the first connection terminal 430 is restored, thereby increasing the gap between the first connection terminal 430 and the bottom wall 482 of the first fixed shell 480, so that the first pin 421 can be inserted or withdrawn between the first connection terminal 430 and the bottom wall 482 of the first fixed shell 480, thereby realizing the installation and removal of the filter element 420 in the filter connector 400.

[0052] Similarly, the filter connector 400 may further include a second fixed shell 4100 and a second fastener 4110. The second fixed shell 4100 includes a top wall and a bottom wall arranged opposite to each other, a second threaded hole 41011 is arranged on the top wall 4101 of the second fixed shell 4100, and the second fastener 4110 is installed in the second threaded hole 41011. Through the threaded fit between the second fastener 4110 and the second threaded hole 41011, the position of the end of the second fastener 4110 in the second fixed shell 4100 can be conveniently adjusted. A portion of the second connection terminal 440 is located in the second fixed shell 4100, and a portion of the second connection terminal 440 is located between the end of the second fastener 4110 and the bottom wall 4102 of the second fixed shell 4100, and the second pin 422 is inserted between a portion of the second connection terminal 440 and the bottom wall 4102 of the second fixed shell 4100. In this way, by screwing the second fastener 4110 downward, the end of the second fastener 4110 can press down the second connecting terminal 440, causing the second connecting terminal 440 to deform, thereby narrowing the gap between the second connecting terminal 440 and the bottom wall 4102 of the second fixed shell 4100, so that the second pin 422 can be crimped between the second connecting terminal 440 and the bottom wall 4102 of the second fixed shell 4100, so that the second pin 422 and the second connecting terminal 440 are reliably electrically connected. On the contrary, by twisting the second fastener 4110 upwards, the pressing effect of the second fastener 4110 on the second connecting terminal 440 can be cancelled, so that the shape of the second connecting terminal 440 can be restored, thereby increasing the gap between the second connecting terminal 440 and the bottom wall 4102 of the second fixed shell 4100, so that the second pin 422 can be inserted or removed between the second connecting terminal 440 and the bottom wall 4102 of the second fixed shell 4100, thereby realizing the installation and removal of the filter element 420 in the filter connector 400.

[0053] Continue to refer Figure 4 In the embodiment of the utility model, the second connection terminal 440 can be a bent structure, and the second connection terminal 440 includes a plate-like body 442 extending to the outside of the second fixed shell 4100, and the plate-like body 442 is bent relative to the part of the second connection terminal 440 located in the second fixed shell 4100. The filter connector 400 includes a second nut (not shown in the figure), and the second nut is fixed to one side of the plate-like body 442. The plate-like body 442 is provided with a second through hole 4421 at a position corresponding to the threaded hole of the second nut. The second connection terminal 440 can be electrically connected to the ground through a grounding member, wherein the grounding member can include an OT terminal and a cable, one end of the cable is electrically connected to the ground, and the other end of the cable is fixed to the OT terminal, and the OT terminal can be locked to the plate-like body 442 through a bolt matched with the second nut, thereby realizing the electrical connection between the plate-like body 442 and the OT terminal, and then realizing the electrical connection between the second connection terminal 440 and the ground.

[0054] Figure 5 This is a schematic diagram of the structure of another filter connector 400 provided in an embodiment of the present application. Figure 5 As shown, in the embodiment of the utility model, the filter connector also includes a housing 4120, the housing 4120 includes a first receiving groove 4121 and a second receiving groove 4122, the connector joint 410 is arranged in the first receiving groove 4121, and the filter element is arranged in the second receiving groove 4122. On the one hand, the housing 4120 can fix the position of the connector joint 410 and the filter element, ensuring that the connector joint 410 and the device to be filtered, and the filter element and the connector joint 410 and the ground can be reliably electrically connected. On the other hand, the housing 4120 can also protect the connector joint 410 and the filter element, reducing the risk of damage to the connector joint 410 and the filter element due to external force.

[0055] The first receiving groove 4121 and the second receiving groove 4122 may be disposed on the same side wall of the housing 4120, or may be disposed on different side walls of the housing 4120. For example, in the present embodiment, the first receiving groove 4121 and the second receiving groove 4122 may be disposed on different side walls of the housing 4120, respectively. The side wall where the second receiving groove 4122 is located is defined as the first side wall 4123, and the two side walls adjacent to and opposite to the first side wall 4123 are respectively the second side wall 4124 and the third side wall 4125, and the second side wall 4124 and the third side wall 4125 are respectively provided with guide grooves 41241 at one end close to the first side wall 4123. The filter connector 400 further includes a cover plate 4130, which is slidably disposed in the guide groove 41241, and the cover plate 4130 may expose the second receiving groove 4122 during the sliding process, or hide the second receiving groove 4122. When the cover plate 4130 slides to expose the second receiving groove 4122, the user can install or remove the filter element. When the cover plate 4130 slides to hide the second receiving groove 4122, the cover plate 4130 can provide protection for the filter element in the second receiving groove 4122, thereby reducing damage or corrosion to the filter element caused by the external environment and extending the service life of the filter element.

[0056] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A filter connector, characterized in that: It comprises a connector joint and a filter element, wherein the connector joint is used for detachably electrically connecting to a device to be filtered, and the filter element comprises a first pin and a second pin, wherein the first pin is electrically connected to the connector joint, and the second pin is used for grounding.

2. The filter connector according to claim 1, characterized in that: The filter connector includes a first connection terminal and a second connection terminal; One end of the first connection terminal is detachably electrically connected to the first pin, and the other end of the first connection terminal is electrically connected to the connector joint; One end of the second connection terminal is detachably electrically connected to the second pin, and the other end of the second connection terminal is used for grounding.

3. The filter connector according to claim 2, characterized in that: The filter connector comprises a first elastic member and a second elastic member; The first elastic member is annularly bent, and is provided with a first sliding hole. One end of the first elastic member is inserted into the first sliding hole. During the switching process of the first elastic member to the energy storage state, the distance between the one end of the first elastic member and the inner wall of the first sliding hole increases; the first connection terminal and the first pin are respectively inserted between the one end of the first elastic member and the inner wall of the first sliding hole; The second elastic member is bent in a ring shape, and is provided with a second sliding hole. One end of the second elastic member is inserted into the first sliding hole. During the process of the second elastic member switching to the energy storage state, the distance between one end of the second elastic member and the inner wall of the first sliding hole gradually increases; part of the second connecting terminal and the second pin are respectively inserted between one end of the second elastic member and the inner wall of the second sliding hole.

4. The filter connector according to claim 2, characterized in that: The filter connector includes a first nut; The second connecting terminal is a flat plate structure, the first nut is fixed to one side of the second connecting terminal, and a first through hole is provided at a position of the second connecting terminal corresponding to the threaded hole of the first nut.

5. The filter connector according to claim 2, characterized in that: The filter connector comprises a first fixing shell, a second fixing shell, a first fastener and a second fastener; The top wall of the first fixed shell is provided with a first threaded hole, the first fastener is installed in the first threaded hole, a portion of the first connecting terminal is located in the first fixed shell, and a portion of the first connecting terminal is located between an end of the first fastener and a bottom wall of the first fixed shell, and the first pin is inserted between a portion of the first connecting terminal and the bottom wall of the first fixed shell; The top wall of the second fixed shell is provided with a second threaded hole, the second fastener is installed in the second threaded hole, a portion of the second connecting terminal is located in the second fixed shell, and a portion of the second connecting terminal is located between the end of the second fastener and the bottom wall of the second fixed shell, and the second pin is inserted between a portion of the second connecting terminal and the bottom wall of the second fixed shell.

6. The filter connector according to claim 5, characterized in that: The filter connector includes a second nut; The second connecting terminal is a bent structure, and the second connecting terminal includes a plate-like body extending to the outside of the fixed shell, the second nut is fixed to one side of the plate-like body, and the plate-like body is provided with a second through hole at a position corresponding to the threaded hole of the second nut.

7. The filter connector according to any one of claims 1 to 6, characterized in that: The filter connector comprises a shell, the shell comprises a first accommodating groove and a second accommodating groove, the connector joint is arranged in the first accommodating groove, and the filter element is arranged in the second accommodating groove.

8. The filter connector according to claim 7, characterized in that: The filter connector includes a cover plate; The housing comprises a first side wall, a second side wall and a third side wall, wherein the second side wall and the third side wall are respectively connected to two sides of the first side wall, the second receiving groove is arranged on the first side wall, and the second side wall and the third side wall are arranged with a guide groove at one end close to the first side wall; The cover plate is slidably mounted on the guide groove, and the cover plate is used to expose or hide the second receiving groove during the sliding process.

9. The filter connector according to any one of claims 1 to 6, characterized in that: The connector joint is a tail clip.

10. A power supply system, characterized in that: It comprises a rectifier unit, a DC copper busbar and a filter connector as claimed in any one of claims 1 to 9, wherein the output end of the rectifier unit is connected to the DC copper busbar, and the DC copper busbar is the device to be filtered.

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