Connector, energy storage inverter and energy storage system

Abstract

The utility model discloses a connector, an energy storage inverter and an energy storage system, the connector comprises a connector body, a magnetic ring and a cover body, the connector body is internally provided with a cavity, the cavity extends along the axial direction of the connector body, one end of the connector body along the axial direction is provided with a first connecting terminal, and the other end of the connector body along the axial direction is provided with a second connecting terminal. One end, deviating from the first connecting terminal, of the cavity is open, and a wire harness is arranged in the cavity in a penetrating manner; the magnetic ring is arranged in the cavity and is suitable for being arranged outside the wire harness in a sleeving manner; the cover body is detachably arranged at one end, far away from the first connecting terminal, of the connector body, the cover body is provided with a wire passing hole for the wire harness to pass through, and one end, far away from the first connecting terminal, of the magnetic ring abuts against the cover body. According to the connector provided by the utility model, electromagnetic interference in equipment connected with the connector can be prevented from influencing the wire harness, the magnetic ring is more convenient and reliable to install, and the magnetic ring is more convenient to check and replace.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of connectors, and in particular to a connector, an energy storage inverter and an energy storage system. Background Art

[0002] Electromagnetic compatibility (EMC) refers to the ability of a device or system to operate in accordance with requirements in its electromagnetic environment and not to cause intolerable electromagnetic interference to any device in its environment. Connectors are widely used to achieve power transmission, and good connector design is also one of the key technologies to solve EMC problems in power transmission lines. In the prior art, magnetic rings can be added to the connector to alleviate the electromagnetic interference problem, but the process of installing the magnetic ring into the connector is often complicated, and it is difficult to replace the magnetic ring when it is demagnetized. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a connector, which can prevent electromagnetic interference in the equipment connected to the connector from affecting the wiring harness, and the magnetic ring is conveniently and reliably installed, and the inspection and replacement of the magnetic ring is convenient.

[0004] The utility model also provides an energy storage inverter, which includes the above-mentioned connector.

[0005] The utility model also provides an energy storage system, which includes the above-mentioned energy storage inverter.

[0006] According to the connector of the embodiment of the utility model, it includes a connector body, a magnetic ring and a cover body, the connector body is provided with a cavity inside, the cavity extends along the axial direction of the connector body, one end of the connector body in the axial direction is provided with a first connecting terminal, the end of the cavity away from the first connecting terminal is open, the wiring harness is passed through the cavity and connected to the first connecting terminal; the magnetic ring is arranged in the cavity and is suitable for being sleeved on the outside of the wiring harness; the cover body is detachably arranged at the end of the connector body away from the first connecting terminal, the cover body is provided with a wire passing hole for the wiring harness to pass through, and the end of the magnetic ring away from the first connecting terminal stops against the cover body.

[0007] According to the connector of the embodiment of the utility model, the magnetic ring is arranged in a cavity extending along the axial direction of the connector body inside the connector body, and the magnetic ring is sleeved outside the wiring harness that passes through the cavity and is connected to the first connection terminal. It can prevent the electromagnetic interference in the equipment connected to the connector from affecting the wiring harness, and avoid excessive radiation emission caused by interference with the wiring harness and filter. The end of the connector body away from the first connection terminal is also detachably provided with a cover body. When the connector and the wiring harness are assembled, the wiring harness can be first passed through the wire hole and the magnetic ring, and then one end of the wiring harness is electrically connected to the first connection terminal, and finally the cover body is connected to the connector body, so that the installation of the magnetic ring when the wiring harness and the connector are assembled is more convenient and reliable. When the magnetic ring is demagnetized, the cover body can be opened, the wiring harness and the first connection terminal can be separated, and the magnetic ring can be taken out for easy inspection and replacement.

[0008] In some embodiments of the present invention, the magnetic ring is a nickel-zinc magnetic ring.

[0009] In some embodiments of the utility model, the cover body includes a cover body and a limiting portion, the cover body is annular, at least a portion of the cover body is sleeved outside the connector body and connected to the connector body, the limiting portion is arranged on the inner circumferential wall of the cover body and stops against the magnetic ring, and the annular space of the cover body is constructed as the wire passing hole.

[0010] In some embodiments of the present invention, the cover body is threadedly connected to the connector body.

[0011] In some embodiments of the present invention, a sealing ring is provided on the inner wall of the wire passing hole, the wire harness is suitable for passing through the sealing ring, and the wire harness and the wire passing hole are sealed and matched through the sealing ring.

[0012] In some embodiments of the utility model, one end of the magnetic ring close to the first connecting terminal abuts against one end of the cavity close to the first connecting terminal; or, along the axial direction of the connector body, the cavity includes a first cavity and a second cavity connected in sequence, the first cavity is located on the side of the second cavity close to the first connecting terminal, the inner diameter of the first cavity is smaller than the inner diameter of the second cavity, the magnetic ring is located in the second cavity and one end of the magnetic ring close to the first connecting terminal abuts against the step surface formed between the first cavity and the second cavity.

[0013] In some embodiments of the present invention, the connector body is a plastic part; and / or the shape of the outer edge of the cross section of the connector body is circular or polygonal; and / or the shape of the cross section of the cavity is circular or polygonal.

[0014] The energy storage inverter according to the embodiment of the utility model comprises a box body and the above-mentioned connector, wherein the box body is provided with a second connecting terminal; the connector is located outside the box body, and the first connecting terminal is detachably electrically connected to the second connecting terminal.

[0015] According to the energy storage inverter of the embodiment of the utility model, the magnetic ring is arranged in a cavity extending along the axial direction of the connector body inside the connector body, and the magnetic ring is sleeved outside the wiring harness that passes through the cavity and is connected to the first connection terminal. It can prevent the electromagnetic interference in the equipment connected to the connector from affecting the wiring harness, and avoid excessive radiation emission caused by interference with the wiring harness and filter. The end of the connector body away from the first connection terminal is also detachably provided with a cover body. When the connector and the wiring harness are assembled, the wiring harness can be first passed through the wire hole and the magnetic ring, and then one end of the wiring harness is electrically connected to the first connection terminal, and finally the cover body is connected to the connector body, so that the installation of the magnetic ring when the wiring harness and the connector are assembled is more convenient and reliable. When the magnetic ring is demagnetized, the cover body can be opened, the wiring harness and the first connection terminal can be separated, and the magnetic ring can be taken out for easy inspection and replacement.

[0016] In some embodiments of the present invention, there are multiple second connection terminals, and there are correspondingly multiple connectors. The multiple second connection terminals include input connection terminals, output connection terminals, and communication connection terminals.

[0017] An energy storage system according to an embodiment of the utility model includes the above-mentioned energy storage inverter.

[0018] According to the energy storage system of the embodiment of the utility model, the magnetic ring is arranged in a cavity extending along the axial direction of the connector body inside the connector body, and the magnetic ring is sleeved outside the wiring harness that passes through the cavity and is connected to the first connection terminal. It can prevent the electromagnetic interference in the equipment connected to the connector from affecting the wiring harness, and avoid excessive radiation emission caused by interference with the wiring harness and filter. The end of the connector body away from the first connection terminal is also detachably provided with a cover body. When the connector and the wiring harness are assembled, the wiring harness can be first passed through the wire hole and the magnetic ring, and then one end of the wiring harness is electrically connected to the first connection terminal, and finally the cover body is connected to the connector body, so that the installation of the magnetic ring when the wiring harness and the connector are assembled is more convenient and reliable. When the magnetic ring is demagnetized, the cover body can be opened, the wiring harness and the first connection terminal can be separated, and the magnetic ring can be taken out for easy inspection and replacement.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a cross-sectional view of a connector according to an embodiment of the utility model;

[0022] Figure 2 is a front view of a connector according to an embodiment of the utility model;

[0023] Figure 3 is an exploded view of a connector according to an embodiment of the utility model;

[0024] Figure 4 It is a front view of a partial structure of an energy storage inverter according to an embodiment of the utility model;

[0025] Figure 5 It is a three-dimensional diagram of a box body of an energy storage inverter according to an embodiment of the utility model;

[0026] Figure 6 It is an application schematic diagram of the energy storage system according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 100. Energy storage inverter;

[0029] 10. Connector;

[0030] 1. Connector body; 11. Cavity; 12. First connecting terminal;

[0031] 2. Magnetic ring;

[0032] 3. Cover body; 31. Cover body; 311. Wire hole; 32. Limiting part; 33. Sealing ring;

[0033] 20. Box body; 201. Second connecting terminal;

[0034] 200. Energy storage system; 300. Photovoltaic system. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The connector 10 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0039] like Figure 3 As shown, the connector 10 according to the embodiment of the utility model includes a connector body 1, a magnetic ring 2 and a cover body 3.

[0040] Specifically, Figure 1 and Figure 3 As shown, a cavity 11 is provided inside the connector body 1, and the cavity 11 extends along the axial direction of the connector body 1. A first connection terminal 12 is provided at one end of the connector body 1 in the axial direction. The end of the cavity 11 away from the first connection terminal 12 is open, and the wiring harness is passed through the cavity 11 and connected to the first connection terminal 12. The open end of the cavity 1 can be used for the wiring harness to pass through the cavity 11 and connect to the first connection terminal 12. When the connector 10 is an input connector, the wiring harness inputs current from the outside to the first connection terminal 12, and the first connection terminal 12 is connected to the corresponding device; when the connector 10 is an output connector, the current is transmitted from the corresponding device to the first connection terminal 12, and the wiring harness transmits the current from the first connection terminal 12 to the external circuit.

[0041] like Figure 1As shown, the magnetic ring 2 is arranged in the cavity 11 and is suitable for being sleeved outside the wiring harness, so as to prevent the electromagnetic interference in the device connected to the connector 10 from affecting the wiring harness, and to prevent the radiation emission from exceeding the standard due to interference with the wiring harness and the filter. It can effectively prevent the EMC (Electromagnetic Compatibility) of the device connected to the connector 10 and the wiring harness from affecting each other, thereby avoiding affecting the performance of the device and the wiring harness. The end of the cavity 11 away from the first connection terminal 12 is open, which can also facilitate the installation of the magnetic ring.

[0042] Wherein, when the connector 10 is an input connector or an output connector, the wiring harness can be a five-core cable, which includes an L line (live line), an N line (neutral line) and a PE line (ground line), and the L line includes an L1 line, an L2 line and an L3 line (three-phase lines A, B and C). The five core wires are insulated from each other, and a plastic sheath is wrapped around the five core wires, and fillers are filled between the core wires. The five-core cable consisting of the L line, the N line and the PE line are all arranged in the magnetic ring 2 to reduce the electromagnetic radiation suffered by the five-core cable.

[0043] like Figure 1 and Figure 2 As shown, the connector 10 further includes a cover 3, which is detachably disposed at one end of the connector body 1 away from the first connection terminal 12, and is provided with a wire hole 311 for the wire harness to pass through, and the wire harness can enter the cavity 11 in the connector body 1 through the wire hole 311 and be connected to the first connection terminal 12. The end of the magnetic ring 2 that is away from the first connection terminal 12 is stopped against the cover 3, and the cover 3 can limit the magnetic ring 2, so that the position of the magnetic ring 2 is more reliable, and the magnetic ring 2 is prevented from falling out of the connector 10.

[0044] When the connector 10 is assembled with the wiring harness, the wiring harness can be first passed through the wire hole 311 and the magnetic ring 2, and then one end of the wiring harness is electrically connected to the first connecting terminal 12, and finally the cover body 3 is connected to the connector body 1, so that the connection with the first connecting terminal 12 during assembly of the wiring harness is more convenient and reliable.

[0045] When the magnetic ring 2 is demagnetized, the cover 3 can be opened, the wiring harness and the first connecting terminal 12 can be separated, and the magnetic ring 2 can be taken out for easy inspection and replacement.

[0046] According to the connector 10 of the embodiment of the utility model, the magnetic ring 2 is arranged in the cavity 11 extending along the axial direction of the connector body 1 inside the connector body 1, and the magnetic ring 2 is sleeved outside the wiring harness that passes through the cavity 11 and is connected to the first connection terminal 12. It can prevent the electromagnetic interference in the equipment connected to the connector 10 from affecting the wiring harness, and avoid the excessive radiation emission caused by the interference of the wiring harness and the filter. The end of the connector body 1 away from the first connection terminal 12 is also detachably provided with a cover body 3. When the connector 10 is assembled with the wiring harness, the wiring harness can be firstly passed through the wire hole 311 and the magnetic ring 2, and then one end of the wiring harness is electrically connected to the first connection terminal 12, and finally the cover body 3 is connected to the connector body 1, so that the magnetic ring is more convenient and reliable when the wiring harness is assembled with the connector 10. When the magnetic ring 2 is demagnetized, the cover body 3 can be opened, the wiring harness and the first connection terminal 12 can be separated, and the magnetic ring 2 can be taken out, which is convenient for inspection and replacement.

[0047] In some embodiments of the present invention, the magnetic ring 2 is a nickel-zinc magnetic ring 2. The nickel-zinc magnetic ring 2 has an extremely high impedance, can be used for anti-interference filtering, can be used to suppress radiation emission, and has little effect on the conduction emission of signals.

[0048] In some embodiments of the present invention, Figure 1 As shown, the cover body 3 includes a cover body 31 and a limiting portion 32. The cover body 31 is annular. At least part of the cover body 31 is sleeved outside the connector body 1 and connected to the connector body 1, so that the cover body 3 is connected to the connector body 1. The limiting portion 32 is provided on the inner peripheral wall of the cover body 31 and abuts against the magnetic ring 2. The limiting portion 32 can limit the magnetic ring 2, so that the position of the magnetic ring 2 is more reliable, and the magnetic ring 2 is prevented from falling out of the connector 10. The annular space of the cover body 31 is configured as a wire hole 311, and the wiring harness can enter the cavity 11 in the connector body 1 through the wire hole 311 and be connected to the first connection terminal 12.

[0049] In some embodiments of the present invention, the cover body 31 is threadedly connected to the connector body 1, the connection between the cover body 31 and the connector body 1 is relatively simple and reliable, and the connector body 1 and the cover body 31 are detachable, and can be disassembled relatively easily when the connector 10 fails and needs to be repaired.

[0050] In addition, when the connector 10 is assembled with the wiring harness, the wiring harness can be first passed through the wire hole 311, and then one end of the wiring harness can be electrically connected to the first connection terminal 12, and finally the cover body 31 can be threadedly connected to the connector body 1, so that the connection with the first connection terminal 12 during assembly of the wiring harness is more convenient and reliable.

[0051] In some embodiments of the present invention, Figure 1 and Figure 3As shown, a sealing ring 33 is provided on the inner wall of the wire hole 311, and the wire harness is suitable for passing through the sealing ring 33. The wire harness and the wire hole 311 are sealed and matched through the sealing ring 33. The sealing ring 33 can limit the position of the wire harness, so that the position of the wire harness is more reliable. The sealing ring 33 can also play a certain waterproof effect. When the connector 10 is used outdoors and it rains outdoors, it can prevent rainwater from entering the connector 10, and can prevent the connector 10 from short-circuiting.

[0052] In some embodiments of the present invention, Figure 1 As shown, one end of the magnetic ring 2 close to the first connecting terminal 12 abuts against one end of the cavity 11 close to the first connecting terminal 12, and the end of the cavity 11 close to the first connecting terminal 12 can limit the magnetic ring 2, so that the position of the magnetic ring 2 is more reliable, preventing the magnetic ring 2 from falling out of the connector 10.

[0053] In some embodiments of the utility model, along the axial direction of the connector body 1, the cavity 11 includes a first cavity and a second cavity connected in sequence, the first cavity is located on the side of the second cavity close to the first connecting terminal 12, the inner diameter of the first cavity is smaller than the inner diameter of the second cavity, the magnetic ring 2 is located in the second cavity and one end of the magnetic ring 2 close to the first connecting terminal 12 abuts against the step surface formed between the first cavity and the second cavity, and the step surface formed between the first cavity and the second cavity can limit the magnetic ring 2, so that the position of the magnetic ring 2 is more reliable, thereby preventing the magnetic ring 2 from falling out of the connector 10.

[0054] In some embodiments of the present invention, the connector body 1 is a plastic part. The connector body 1 has an insulating effect, which can prevent the wiring harness and the equipment connected to the wiring harness from short circuiting. The plastic part can be manufactured by injection molding or the like, and the manufacturing of the connector body 1 is relatively simple.

[0055] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the shape of the outer edge of the cross section of the connector body 1 is circular or polygonal. When the shape of the outer edge of the cross section of the connector body 1 is circular, the sharp corners on the surface of the connector body 1 can be reduced to avoid the sharp corners from breaking when impacted by external forces, and to avoid scratches when the human body contacts the connector body; when the shape of the outer edge of the cross section of the connector body 1 is polygonal, the connector body 1 can be gripped more firmly. The shape of the cross section of the outer edge of the connector body 1 can be selected according to needs.

[0056] In some embodiments of the present invention, Figure 1As shown, the cross-section of the cavity 11 is circular or polygonal, which facilitates the passage of the wiring harness through the cavity 11 and avoids the presence of sharp edges on the cavity 11 to avoid scratching the wiring harness. The cross-section of the cavity 11 is adapted to the shape of the magnetic ring 2 to facilitate the installation of the magnetic ring 2.

[0057] The connector 10 according to the embodiment of the utility model can be used in the fields of electronic appliances, communications, automobile industry, medical equipment, etc.

[0058] For example, the energy storage inverter 100 according to the embodiment of the present utility model is as follows: Figure 4 and Figure 5 As shown, it includes a box body 20 and a connector 10 according to an embodiment of the utility model. A second connection terminal 201 is provided on the box body 20, and the connector 10 is located outside the box body 20. The first connection terminal 12 and the second connection terminal 201 are detachably electrically connected, so that the current in the box body 20 can be output to the outside through the first connection terminal 12 and the second connection terminal 201, or the external current can be input into the box body 20 through the first connection terminal 12 and the second connection terminal 201, or the communication connection between the components inside the box body 20 and the external device can be realized through the electrical connection between the first connection terminal 12 and the second connection terminal 201. In addition, the first connection terminal 12 and the second connection terminal 201 are detachable, so when the energy storage inverter 100 fails, the connector 10 and the box body 20 can be disassembled for maintenance, so that the maintenance of the energy storage inverter 100 is more convenient.

[0059] The energy storage inverter 100 is a device for converting a DC power supply into an AC power supply, and can be applied to the energy storage system 200 of photovoltaic, wind and nuclear power generation systems, which can effectively utilize power equipment and reduce power supply costs. The energy storage inverter 100 can include a grid-connected energy storage inverter 100, an off-grid energy storage inverter 100, and a variety of series energy storage inverters 100 according to the operating mode.

[0060] Since the connector 10 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the energy storage inverter 100 according to the embodiment of the utility model is provided with the magnetic ring 2 in the cavity 11 extending along the axial direction of the connector body 1 inside the connector body 1, and the magnetic ring 2 is sleeved outside the wiring harness that penetrates into the cavity 11 and is connected to the first connection terminal 12. It can avoid the electromagnetic interference in the equipment connected to the connector 10 from affecting the wiring harness, and avoid the excessive radiation emission caused by the interference of the wiring harness and the filter. The end of the connector body 1 away from the first connection terminal 12 can also be detachably provided with a cover body 3. When the connector 10 is assembled with the wiring harness, the wiring harness can be firstly passed through the wire hole 311 and the magnetic ring 2, and then one end of the wiring harness is electrically connected to the first connection terminal 12, and finally the cover body 3 is connected to the connector body 1, so that the installation of the magnetic ring when the wiring harness is assembled with the connector 10 is more convenient and reliable. When the magnetic ring 2 is demagnetized, the cover body 3 can be opened, the wiring harness and the first connection terminal 12 can be separated, and the magnetic ring 2 can be taken out, which is convenient for inspection and replacement.

[0061] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, there are multiple second connection terminals 201, and the connector 10 is a corresponding multiple, and the multiple second connection terminals 201 include input connection terminals, output connection terminals and communication connection terminals. Correspondingly, the connector 10 includes an input connector, an output connector and a communication connector. When the connector 10 is an input connector, the wiring harness inputs the current from the outside to the first connection terminal 12, and transmits the current from the first connection terminal 12 to the input connection terminal, so as to realize the current input to the components in the box 20; when the connector 10 is an output connector, the current is transmitted from the components in the box 20 to the output connection terminal, and from the output connection terminal to the first connection terminal 12, and the wiring harness transmits the current from the first connection terminal 12 to the external circuit. When the connector 10 is a communication connector, the communication connection terminal is connected to the first connection terminal 12 for communication, so as to realize the communication connection between the components in the box 20 and the outside.

[0062] like Figure 6 As shown, the energy storage system 200 according to the embodiment of the present utility model includes the energy storage inverter 100 according to the embodiment of the present utility model.

[0063] The energy storage system 200 can store electric energy to reduce the cost of power supply. For example, the energy storage system 200 includes an energy storage inverter 100 and an energy storage battery. The energy storage system 200 can be used in conjunction with the photovoltaic system 300 to provide electric energy for users. During the day, the electric energy generated by the photovoltaic system 300 is used for local loads first. The excess energy is processed by the energy storage inverter 100 and stored in the energy storage battery. When there is still surplus electric energy, it can be selectively connected to the power grid; at night, when the photovoltaic system 300 cannot generate electricity, the energy storage battery discharges and provides electric energy for local loads after being processed by the energy storage inverter 100. The energy storage system 200 can improve the degree of self-generation and self-use of the photovoltaic system 300, reduce the user's electricity bill expenditure, and ensure the stability of the user's electricity consumption in extreme weather and other situations. For users in areas with high electricity prices, peak-valley price differences, or old power grids, setting up an energy storage system 200 is more economical.

[0064] Since the energy storage inverter 100 according to the embodiment of the utility model has the above-mentioned beneficial technical effects, the energy storage system 200 according to the embodiment of the utility model is provided with the magnetic ring 2 in the cavity 11 extending along the axial direction of the connector body 1 inside the connector body 1, and the magnetic ring 2 is sleeved outside the wiring harness that penetrates into the cavity 11 and is connected to the first connection terminal 12. It can avoid that the electromagnetic interference in the equipment connected to the connector 10 affects the wiring harness, and avoid that the radiation emission exceeds the standard due to the interference of the wiring harness and the filter. The end of the connector body 1 away from the first connection terminal 12 is also detachably provided with a cover body 3. When the connector 10 is assembled with the wiring harness, the wiring harness can be firstly passed through the wire hole 311 and the magnetic ring 2, and then one end of the wiring harness is electrically connected to the first connection terminal 12, and finally the cover body 3 is connected to the connector body 1, so that the installation of the magnetic ring when the wiring harness is assembled with the connector 10 is more convenient and reliable. When the magnetic ring 2 is demagnetized, the cover body 3 can be opened, the wiring harness and the first connection terminal 12 can be separated, and the magnetic ring 2 can be taken out, which is convenient for inspection and replacement.

[0065] The connector 10 , the energy storage inverter 100 , the energy storage system 200 and the operation according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A connector, characterized in that: include: A connector body, wherein a cavity is provided inside the connector body, the cavity extends in the axial direction of the connector body, a first connection terminal is provided at one end of the connector body in the axial direction, the end of the cavity away from the first connection terminal is open, and the wiring harness is passed through the cavity and connected to the first connection terminal; A magnetic ring, the magnetic ring is arranged in the cavity and is suitable for being sleeved outside the wiring harness; A cover body is detachably arranged on an end of the connector body away from the first connecting terminal, and a wire hole is provided on the cover body for the wire harness to pass through, and an end of the magnetic ring away from the first connecting terminal stops against the cover body.

2. The connector according to claim 1, characterized in that: The magnetic ring is a nickel-zinc magnetic ring.

3. The connector according to claim 1, characterized in that: The cover body includes a cover body and a limiting portion. The cover body is annular. At least a portion of the cover body is sleeved outside the connector body and connected to the connector body. The limiting portion is arranged on the inner circumferential wall of the cover body and stops against the magnetic ring. The annular space of the cover body is configured as the wire passing hole.

4. The connector according to claim 3, characterized in that: The cover body is threadedly connected to the connector body.

5. The connector according to claim 1, characterized in that: A sealing ring is provided on the inner wall of the wire-passing hole, and the wire harness is suitable for passing through the sealing ring. The wire harness and the wire-passing hole are sealed and matched through the sealing ring.

6. The connector according to claim 1, characterized in that: One end of the magnetic ring close to the first connecting terminal abuts against one end of the cavity close to the first connecting terminal; Or, along the axial direction of the connector body, the cavity includes a first cavity and a second cavity connected in sequence, the first cavity is located on the side of the second cavity close to the first connecting terminal, the inner diameter of the first cavity is smaller than the inner diameter of the second cavity, the magnetic ring is located in the second cavity and one end of the magnetic ring close to the first connecting terminal abuts against the step surface formed between the first cavity and the second cavity.

7. The connector according to claim 1, characterized in that: The connector body is a plastic part; and / or, the outer edge of the cross section of the connector body is in the shape of a circle or a polygon; And / or, the cross-section of the cavity is circular or polygonal.

8. An energy storage inverter, characterized in that: include: A box body, wherein the box body is provided with a second connecting terminal; According to any one of claims 1 to 7, the connector is located outside the box body, and the first connecting terminal is detachably electrically connected to the second connecting terminal.

9. The energy storage inverter according to claim 8, characterized in that: There are a plurality of the second connection terminals, and a corresponding number of the connectors. The plurality of the second connection terminals include an input connection terminal, an output connection terminal, and a communication connection terminal.

10. An energy storage system, characterized in that: Comprising the energy storage inverter according to claim 8 or 9.

Images