Conductive connecting piece, connector and power converter

Abstract

The utility model relates to a conductive connecting piece, a connector and a power converter, the conductive connecting piece comprises a connecting terminal, the connecting terminal comprises a connecting part and a crimping part connected with the connecting part, a conductive structure comprises a flexible part and a rigid part connected with the flexible part, the flexible part is crimped to the crimping part and is connected with the crimping part, and the rigid part is connected with the flexible part. The rigidity of the flexible part is smaller than that of the rigid part, and the rigid part is used for being in hard connection with a circuit board. In conclusion, according to the conductive connecting piece in the embodiment, the rigidity of the flexible part in the conductive structure is set to be smaller than that of the rigid part, so that the conductive structure can be in compression joint with the connecting terminal more firmly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of conductive connection, in particular to a conductive connecting piece, a connector and a power converter. BACKGROUND

[0002] With the rapid development of science and technology, solar energy technology is gradually widely used in people's production and life. In the prior art, direct current generated by photovoltaic power generation of solar energy is converted into alternating current by a power converter, and a connector is an interface of the power converter to the outside. One end of a conductive piece in the connector is connected with a circuit board of the power converter, and the other end is connected with an external wire. In the related art, the conductive piece is formed by crimping a conductive terminal with a wire. The crimping between the conductive terminal and the wire is not firm, and the electrical connection between the wire and the conductive terminal is prone to open circuit. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a conductive connecting piece, a connector and a power converter in view of the problem that the crimping between the conductive terminal and the wire in the connector is not firm, and the electrical connection between the conductive terminal and the wire is prone to open circuit.

[0004] A conductive connecting piece comprises:

[0005] A connecting terminal comprises a connecting part and a crimping part connected with the connecting part;

[0006] A conductive structure comprises a flexible part and a rigid part connected with the flexible part. The flexible part is crimped on the crimping part and connected with the crimping part.

[0007] The rigidity of the flexible part is less than the rigidity of the rigid part, and the rigid part is used to connect with a circuit board.

[0008] In one of the embodiments, the flexible part and the rigid part are in an integrated structure, and one end of the flexible part is crimped on the crimping part.

[0009] In one of the embodiments, the crimping part comprises a sleeve piece and two crimping claws, and the two crimping claws are respectively arranged on opposite sides of the sleeve piece. The sleeve piece is connected with the connecting part.

[0010] Each of the crimping claws is configured to be close to the sleeve piece around the connection point of itself and the sleeve piece to crimp the flexible part.

[0011] In one of the embodiments, the rigid part comprises a transition part and a connecting part. The transition part is connected to one end of the flexible part away from the crimping part. The connecting part is connected to one end of the transition part away from the flexible part. A bending angle is formed between the connecting part and the transition part.

[0012] In one of the embodiments, the transition portion and the connecting portion are integrated.

[0013] In one of the embodiments, the bending angle is greater than 0° and less than 180°.

[0014] In the conductive connecting piece, the connecting portion of the connecting terminal is connected with the crimping portion, the flexible portion of the conductive structure is crimped on the crimping portion and connected with the connecting portion through the crimping portion, the rigid portion of the conductive structure is connected with the flexible portion, and the rigid portion is used to connect with the circuit board. Since the rigidity of the flexible portion is less than the rigidity of the rigid portion, the conductive connecting piece has the following two advantages: on the one hand, when the flexible portion is crimped with the crimping portion, the flexible portion can be deformed, and the flexible portion can be better crimped with the crimping portion by means of the deformation of the flexible portion, thereby enhancing the firmness of the crimping between the connecting terminal and the conductive structure and reducing the risk of disconnection of the electrical connection between the connecting terminal and the conductive structure; on the other hand, when the rigid portion is connected with the circuit board, since the rigidity of the rigid portion is high, the connection between the rigid portion and the circuit board is more firm.

[0015] In summary, in the conductive connecting piece, the rigidity of the flexible portion of the conductive structure is less than the rigidity of the rigid portion, so that the conductive structure can be more firmly crimped with the connecting terminal.

[0016] The application also provides a connector comprising the conductive connecting piece.

[0017] In one of the embodiments, the connector comprises a positioning piece, and the positioning piece comprises a positioning pin.

[0018] The transition portion is provided with a positioning hole, and the positioning hole penetrates the transition portion along a first direction. The positioning pin is arranged in the positioning hole.

[0019] In one of the embodiments, the positioning piece comprises two limiting pieces, and the two limiting pieces are arranged on opposite sides of the transition portion along a second direction. The second direction intersects the first direction.

[0020] In one of the embodiments, the positioning piece comprises a support portion, and the support portion is connected between the two limiting pieces and contacts one side of the transition portion along the first direction.

[0021] In one of the embodiments, each limiting piece is provided with a stop block, and each stop block contacts one side of the transition portion away from the support portion.

[0022] In one of the embodiments, the connector further comprises an insulating shell, the conductive connecting member is arranged through the insulating shell, and the connecting terminal of the conductive connecting member is arranged in the insulating shell.

[0023] The connecting part of the connecting terminal is arranged away from one end of the crimping part and used for connecting an adapter.

[0024] In one of the embodiments, the rigid part of the conductive structure in the conductive connecting member is arranged outside the insulating shell.

[0025] In one of the embodiments, a first boss is arranged on the surface of the insulating shell and used for cooperating with a whole machine shell.

[0026] In one of the embodiments, a second boss is further arranged on the surface of the insulating shell, the first boss and the second boss are arranged in a spaced manner, and the second boss protrudes from the surface of the insulating shell in the same direction as the first boss.

[0027] In one of the embodiments, two clamping members arranged in a spaced manner are further arranged on the surface of the insulating shell, the clamping members protrude from the surface of the insulating shell, a clamping head is arranged on the clamping member, and the clamping head is used for clamping with a groove on the adapter.

[0028] In one of the embodiments, two clamping grooves are further arranged on the surface of the insulating shell, and the clamping grooves are used for clamping with a clamping block on the adapter.

[0029] In one of the embodiments, the connector comprises two conductive connecting members arranged in a spaced manner, and two positioning members corresponding to the two conductive connecting members, and each of the conductive connecting members is arranged through the insulating shell.

[0030] The application further provides a power converter comprising the connector described above, and the whole machine shell is provided with a mounting port, and the connector is arranged in the mounting port.

[0031] In one of the embodiments, the whole machine shell comprises a first shell and a second shell, the first shell and the second shell are arranged opposite to each other and jointly form the mounting port, the first shell and the second shell are both provided with first clamping grooves and second clamping grooves arranged in a spaced manner, the first boss on the surface of the insulating shell in the connector is clamped with the two first clamping grooves, and the second boss on the surface of the insulating shell in the connector is clamped with the two second clamping grooves. BRIEF DESCRIPTION OF DRAWINGS

[0032] To more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of this application, the drawings used in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a conductive component in the prior art.

[0034] Figure 2 This is a schematic diagram of the structure of a conductive connector in one embodiment of this application.

[0035] Figure 3 for Figure 2 The braided texture of the conductive structure in the conductive connector shown.

[0036] Figure 4 for Figure 2 The diagram shows the crimping structure of the flexible part and the crimping part in the conductive connector.

[0037] Figure 5 for Figure 4 The diagram shows the structure of the crimping part in the crimping structure.

[0038] Figure 6 This is a schematic diagram of the connector structure in one embodiment of this application.

[0039] Figure 7 for Figure 6 A partially enlarged schematic diagram of the structure at point A in the connector shown.

[0040] Figure 8 for Figure 6 The top view of the connector shown.

[0041] Figure 9 for Figure 8 The connector shown is a cross-sectional view at point C.

[0042] Figure 10 This is a schematic diagram of the connector structure in one embodiment of this application.

[0043] Figure label:

[0044] Connector 10;

[0045] Conductive connector 100, connecting terminal 110, connecting part 111, crimping part 112, sleeve 112-1, crimping claw 112-2, conductive structure 120, flexible part 121, rigid part 122, transition part 122-1, connecting part 122-2, positioning hole 123.

[0046] Positioning member 200, positioning pin 210, limiting member 220, stop block 221, support portion 230;

[0047] Insulating shell 300, first boss 310, second boss 320, clamping member 330, clamping head 331, clamping groove 340;

[0048] Connecting member 400;

[0049] Conductive member 20, conductive terminal 21, connecting piece 22. DETAILED DESCRIPTION

[0050] In order to make the above objectives, features and advantages of the present application more apparent, a detailed description of the specific embodiments of the present application will be given below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a sufficient understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0052] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0053] In the present application, unless specifically defined otherwise, if there is any appearance of the terms "mount", "connect", "connection", "fixed", etc., these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the present application, unless specifically defined otherwise, if there is any appearance of the terms "mount", "connect", "connection", "fixed", etc., these terms should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically defined. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can be a mediating element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a mediating element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0056] With the development of production technology, solar energy technology is gradually widely used in people's production and life. In the prior art, direct current generated by solar energy through photovoltaic power generation is converted into alternating current by a power converter and then transmitted to a power grid. The connector is an external interface of the power converter, and the connector includes a conductive part 20 for electrically connecting a circuit board of the power converter and an external adapter. Generally, the rear end of the conductive part 20 is usually welded to the circuit board, and the front end of the conductive part 20 is connected to the external adapter. The direct current generated by photovoltaic power generation is input into the circuit board of the power converter from the external adapter through the conductive part 20 and is converted into alternating current by the power converter; after the direct current is converted into alternating current by the power converter, the power converter is output from the external adapter through the conductive part 20 and is transmitted to the power grid.

[0057] As described above, referring to Figure 1The existing conductive part 20 is integrally formed with the conductive terminal 21 and the connecting piece 22, the conductive terminal 21 and the connecting piece 22 are both conductive, the conductive terminal 21 is electrically connected with the external adapter, the connecting piece 22 is electrically connected with the circuit board of the power converter, the stress between the conductive terminal 21 and the connecting piece 22 is large, and the electrical connection between the connecting piece 22 and the conductive terminal 21 is prone to be disconnected. Thus, the electrical connection between the external adapter and the circuit board of the power converter is prone to be invalid, which affects the normal work of the entire product.

[0058] Therefore, an embodiment of the present application provides a conductive connecting part 100. Specifically, referring to Figure 2 The conductive connecting part 100 includes a connecting terminal 110 and a conductive structure 120. The connecting terminal 110 is a metal sheet, a metal strip, a metal tube or a metal wire made of a metal material, can transmit current, and is used for connecting an adapter, which includes but is not limited to external wires such as direct current input wires and alternating current output wires, or other conductive connecting parts 100, or other external electronic elements, without limitation. The conductive structure 120 can transmit current and is used for connecting a circuit board, which can be a circuit board of a power converter such as an inverter, or a circuit board of other electronic devices, without limitation. The connecting terminal 110 includes a connecting part 111 and a crimping part 112 connected with the connecting part 111. The connecting part 111 can be a metal tube with a cavity, which increases the ability of the connecting part 111 to withstand deformation and can be plugged with the adapter; the crimping part 112 can be a sheet structure and can be deformed to press the conductive structure 120. The conductive structure 120 includes a flexible part 121 and a rigid part 122 connected with the flexible part 121, the flexible part 121 is crimped on and connected with the crimping part 112. The flexible part 121 can be made of a soft material, specifically a metal wire, and can be elastically or plastically deformed in all directions. Preferably, it is plastically deformed, so that the flexible part 121 can be plastically adjusted according to the adapter and there is no stress all the time, which increases the durability of the flexible part 121. The rigid part 122 can be a metal braid hardened by a metal wire woven by a soft material, and has a rigidity greater than that of the flexible part 121. The rigid part 122 can be elastically deformed under the action of an external force. When the crimping part 112 crimps the flexible part 121, the flexible part 121 can be pressed by wrapping, or can be pressed by other sheet pressing forms. The rigidity of the flexible part 121 is less than that of the rigid part 122, and the rigid part 122 is used for connecting the circuit board, including but not limited to plugging, welding and the like, without limitation.

[0059] Thus, referring to Figure 2In the conductive connector 100, the connecting portion 111 of the connecting terminal 110 is connected with the crimping portion 112, the flexible portion 121 of the conductive structure 120 is crimped on the crimping portion 112 and connected with the connecting portion 111 through the crimping portion 112, the rigid portion 122 of the conductive structure 120 is connected with the flexible portion 121, and the rigid portion 122 is used to be connected with the circuit board. Since the rigidity of the flexible portion 121 is less than the rigidity of the rigid portion 122, the conductive connector 100 in the embodiment has the following two advantages: on the one hand, when the flexible portion 121 is crimped with the crimping portion 112, the flexible portion 121 can be deformed, and the flexible portion 121 can be better crimped with the crimping portion 112 by means of the deformation of the flexible portion 121, thereby enhancing the firmness of the crimping between the connecting terminal 110 and the conductive structure 120 and reducing the risk of disconnection of the electrical connection between the connecting terminal 110 and the conductive structure 120; on the other hand, when the rigid portion 122 is connected with the circuit board, since the rigidity of the rigid portion 122 is high, the rigid portion 122 can be more firmly connected with the circuit board.

[0060] In summary, referring to Figure 2 The conductive connector 100 in the embodiment is made by setting the rigidity of the flexible portion 121 of the conductive structure 120 to be less than the rigidity of the rigid portion 122, so that the conductive structure 120 can be more firmly crimped with the connecting terminal 110.

[0061] Referring to Figure 2 In an embodiment, the flexible portion 121 and the rigid portion 122 are in an integrated structure. The integrated structure means that the flexible portion 121 and the rigid portion 122 are a complete and indivisible whole and are processed from the same piece of material. For example, referring to Figure 3 The integrated structure is hardened from a metal braid woven by metal wires, wherein the flexible portion 121 retains the structure of the metal braid and the rigid portion 122 is obtained by hardening the metal braid. Specifically, the rigid portion 122 is hardened and tinned from the metal braid, which is conducive to wave soldering on the board and can ensure the quality of wave soldering. One end of the flexible portion 121 is crimped on the crimping portion 112, and the other end of the flexible portion 121 along the extension direction thereof is connected with the rigid portion 122.

[0062] In this way, referring to Figure 3 The conductive structure 120 can be prepared by bending the metal braid and hardening one end, which simplifies the manufacturing process of the conductive structure 120, facilitates the use of automatic equipment, has small resistance and strong current-carrying capacity. Since the flexible portion 121 retains the structure of the metal braid, the metal braid is woven by metal wires made of soft material, such as Figure 3The flexible part 121 can be elastically deformed or plastically deformed in all directions. Preferably, the flexible part 121 is plastically deformed, so that on the one hand, the flexible part 121 can be plastically adjusted according to the adapter, and there is no stress all the time, increasing the durability of the flexible part 121; on the other hand, the crimping part 112 can press the flexible part 121 by wrapping, and the crimping part 112 can press the flexible part 121 more firmly. In addition, since the rigid part 122 is a metal braid obtained by hardening treatment, the rigidity of the rigid part 122 is high, so that when the rigid part 122 is connected with the circuit board, the rigid part 122 can be more firmly connected with the circuit board.

[0063] Referring to Figure 4 In an embodiment, the crimping part 112 includes a sleeve part 112-1 and two crimping claws 112-2. The sleeve part 112-1 is a metal sheet made of a metal material, the sleeve part 112-1 is conductive, the sleeve part 112-1 is located at the outer periphery of the flexible part 121 and contacts part of the outer periphery of the flexible part 121, and the sleeve part 112-1 can be elastically deformed or plastically deformed along the circumferential direction of the flexible part 121. Preferably, the sleeve part 112-1 is plastically deformed, so that the sleeve part 112-1 can be plastically adjusted according to the outer periphery of the flexible part 121 to completely contact the outer periphery of the flexible part 121, increasing the contact area between the sleeve part 112-1 and the flexible part 121. The crimping claws 112-2 are located outside the flexible part 121. The crimping claws 112-2 are crimped outside the flexible part 121 and apply a force to press the sleeve part 112-1 and the flexible part 121 tightly together. Referring to Figure 5 The two crimping claws 112-2 are respectively arranged on opposite sides of the sleeve part 112-1, the sleeve part 112-1 is connected with the connecting part 111, and each crimping claw 112-2 is configured to approach the sleeve part 112-1 around the connecting point between itself and the sleeve part 112-1 to crimp the flexible part 121. The crimping claw 112-2 is a metal sheet made of a metal material, and the crimping claw 112-2 can be elastically deformed or plastically deformed along the circumferential direction of the flexible part 121. Preferably, the crimping claw 112-2 is plastically deformed, so that the crimping claw 112-2 can be plastically adjusted according to the outer periphery of the flexible part 121, and under the action of an external force, the crimping claw 112-2 can press the flexible part 121 or partially insert into the flexible part 121 to tightly press the flexible part 121 and the sleeve part 112-1 together.

[0064] Therefore, referring to Figure 4When the conductive structure 120 is to be crimped with the connecting terminal 110, the end of the flexible part 121 away from the rigid part 122 is placed between two crimping claws 112-2, each of which is close to the sleeve piece 112-1 around the connecting point of itself and the sleeve piece 112-1, so that the two crimping claws 112-2 and the sleeve piece 112-1 enclose a receiving cavity (not shown) for accommodating the end of the flexible part 121 away from the rigid part 122, and then tightly press the end of the flexible part 121 away from the rigid part 122 and the sleeve piece 112-1 together. In the above process, when the crimping claws 112-2 press the flexible part 121, the flexible part 121 can be deformed, so that the flexible part 121 is better crimped with the crimping part 112, and the firmness of the crimping between the connecting terminal 110 and the conductive structure 120 is enhanced. In addition, since the conductive structure 120 is crimped with the connecting terminal 110, the conductive structure 120 is fixed on the circuit board, and the conductive structure 120 is prevented from being separated from the circuit board. Figure 2 A standard terminal in an electrical connection can be used as the connecting terminal 110, without the need for repeated authentication, and the modification method is simple.

[0065] Referring to Figure 2 In an embodiment, the rigid part 122 includes a transition part 122-1 and a connecting part 122-2, both of which are hardened from a metal braid woven by a metal wire of a soft material and can transmit current. The transition part 122-1 is located at the end of the flexible part 121 away from the crimping part 112, and the connecting part 122-2 is located at the end of the transition part 122-1 away from the flexible part 121. The transition part 122-1 is located between the flexible part 121 and the connecting part 122-2, and the connecting part 122-2 is used to connect with the circuit board. A bending angle A is formed between the connecting part 122-2 and the transition part 122-1. The connecting part 122-2 and the transition part 122-1 form a bending structure.

[0066] Thus, referring to Figure 2 , the bending structure can make the connecting part 122-2 elastically deform when subjected to external force, thereby absorbing the external force to buffer and protect the connection between the connecting part 122-2 and the circuit board, avoiding the transmission of external force to the circuit board, and reducing the risk of loosening of the connection between the connecting part 122-2 and the circuit board. Understandably, in other embodiments, the rigid part 122 can also be partially or entirely made of a soft material, so that the rigid part 122 can form an elastic structure without the bending structure to absorb external force and thus protect the connection between the connecting part 122-2 and the circuit board. The soft material is a conductive material, such as copper, aluminum, iron, etc. In addition, the rigid part 122 can also be integrally bent and formed by sheet metal. By integrally bending and forming the rigid part 122 by sheet metal, the manufacturing process of the rigid part 122 can be simplified, and the resistance is small and the current carrying capacity is strong.

[0067] Referring toFigure 2 In an embodiment, the transition portion 122-1 and the connecting portion 122-2 are integrated. The integrated structure means that the transition portion 122-1 and the connecting portion 122-2 are a complete and indivisible whole, and are processed from the same piece of material. For example, the integrated structure is hardened from a metal braid woven by metal wires, wherein the flexible portion 121 retains the structure of the metal braid, and the transition portion 122-1 and the connecting portion 122-2 are obtained by hardening the metal braid, and the transition portion 122-1 and the connecting portion 122-2 are connected.

[0068] Thus, referring to Figure 2 The bending device can be used to bend the rigid portion 122 to form the bending angle A between the connecting portion 122-2 and the transition portion 122-1, which simplifies the manufacturing process of the rigid portion 122, and has small resistance and strong overcurrent capacity.

[0069] Referring to Figure 2 In an embodiment, the bending angle A is greater than 0° and less than 180°.

[0070] Thus, referring to Figure 2 The setting of the bending angle A allows the connecting portion 122-2 to effectively absorb external force by changing the size of the bending angle A when the connecting portion 122-2 is subjected to external force, thereby avoiding the transmission of external force to the circuit board and reducing the risk of loosening at the connection between the connecting portion 122-2 and the circuit board. By setting the bending angle A to be greater than 0° and less than 180°, the absorption effect of the connecting portion 122-2 on external force can be enhanced. It can be understood that the bending angle A can be any one of 20°, 45°, 50°, 75°, 90°, 100°, 120°, 135°, 150°, 160°, 175°, etc.

[0071] The connector is usually applied in power converters such as inverters to connect the circuit board of the power converter and an external adapter. Generally, a conductive connecting piece 100 is arranged in the shell of the connector, the rear end of the conductive connecting piece 100 is usually welded to the circuit board, and the front end of the conductive connecting piece 100 is connected to the external adapter.

[0072] Referring to Figure 6 An embodiment provides a connector 10, which comprises the conductive connecting piece 100 described above.

[0073] Referring to Figure 7In an embodiment, the connector 10 comprises a positioning member 200. The positioning member 200 is a structural member for positioning the rigid portion 122 in the conductive connector 100. When the connecting portion 122-2 of the rigid portion 122 is welded to the circuit board, the positioning member 200 can limit the movement of the rigid portion 122, and prevent the connecting portion 122-2 from moving relative to the circuit board when the flexible portion 121 is deformed by external force.

[0074] Thus, referring to Figure 7 The movement of the transition portion 122-1 along a direction perpendicular to the first direction can be prevented when the flexible portion 121 is deformed, and the welding of the connecting portion 122-2 to the circuit board at the designated position can be ensured.

[0075] Referring to Figure 7 In an embodiment, the positioning member 200 comprises two limiting members 220. The limiting members 220 can be, but are not limited to, baffles. The limiting members 220 are made of insulating materials and do not deform elastically or plastically under external force. The two limiting members 220 are arranged on opposite sides of the transition portion 122-1 along a second direction, and the second direction intersects the first direction. When the flexible portion 121 is deformed elastically or plastically and transmits force to the transition portion 122-1, the two limiting members 220 clamp the transition portion 122-1 from opposite sides of the transition portion 122-1 along the second direction, and prevent the transition portion 122-1 from rotating around the axis of the positioning pin 210.

[0076] Thus, referring to Figure 7 The rotation of the transition portion 122-1 around the axis of the positioning pin 210 can be prevented when the flexible portion 121 is deformed, and the welding of the connecting portion 122-2 to the circuit board at the designated position can be ensured.

[0077] Referring to Figure 7In an embodiment, the positioning member 200 comprises a support part 230. The support part 230 comprises, but is not limited to, a baffle plate, and the like, which is not limited herein. The support part 230 is made of an insulating material, and the support part 230 has little elastic deformation or plastic deformation under an external force. The support part 230 is connected between the two limiting members 220 and in contact with one side of the transition part 122-1 along the first direction. The support part 230 applies a support force along the first direction to the transition part 122-1 at the contact surface between the support part 230 and the transition part 122-1, so as to support the transition part 122-1.

[0078] In this way, referring to Figure 7 , the support of the transition part 122-1 by the support part 230 can prevent the transition part 122-1 from rotating relative to the positioning pin 210 about the axis B parallel to the arrangement direction of the two limiting members 220, and prevent the transition part 122-1 from driving the connection part 122-2 to rotate relative to the circuit board about the axis B parallel to the arrangement direction of the two limiting members 220 when a worker is welding the connection part 122-2 to the circuit board, so as to ensure that the connection part 122-2 is always in contact with the circuit at the designated position on the circuit board.

[0079] Referring to Figure 7 In an embodiment, each limiting member 220 is provided with a stop block 221. The stop block 221 is a protruding part on the limiting member 220, and the stop block 221 and the corresponding limiting member 220 are of an integral structure. The integral structure means that the stop block 221 and the limiting member 220 are a complete and indivisible whole and are processed from the same piece of material. Each stop block 221 is in contact with one side of the transition part 122-1 away from the support part 230. The stop block 221 is used in cooperation with the support part 230 to clamp the transition part 122-1 from the opposite sides of the transition part 122-1 along the first direction, respectively, so as to prevent the transition part 122-1 from moving along the axial direction of the positioning pin 210.

[0080] In this way, referring to Figure 7 , the axial movement of the transition part 122-1 along the positioning pin 210 under the driving of the flexible part 121 of the transition part 122-1 when the welding equipment is welding the connection part 122-2 to the circuit board can be avoided, and the transition part 122-1 driving the connection part 122-2 to deviate from the circuit at the designated position on the circuit board along the axial direction of the positioning pin 210 can be prevented.

[0081] Referring to Figure 7 In an embodiment, the connector 10 further comprises an insulating shell 300, which is an outer shell made of an insulating material. The conductive connecting member 100 is arranged in the insulating shell 300, and the connecting terminal 110 of the conductive connecting member 100 is arranged in the insulating shell 300. The connection part 111 of the connecting terminal 110 away from the crimping part 112 is used to connect an adapter.

[0082] Thus, referring to Figure 7 , the insulating shell 300 can protect the conductive connecting piece 100, and facilitate the installation of the connector 10 on the overall housing of the power converter.

[0083] Specifically, referring to Figure 7 , after the conductive connecting piece 100 is arranged in the insulating shell 300, the crimping portion 112 of the connecting terminal 110 and the insulating shell 300 can be bonded by glue, so as to improve the stability of the conductive connecting piece 100.

[0084] Further, referring to Figure 2 , the connecting portion 111 can be a cylindrical structure.

[0085] Referring to Figure 7 , in an embodiment, the rigid portion 122 of the conductive structure 120 in the conductive connecting piece 100 is located outside the insulating shell 300.

[0086] Thus, referring to Figure 7 , the rigid portion 122 of the conductive structure 120 occupies the internal space of the insulating shell 300, so that the overall volume of the insulating shell 300 can be smaller, and the connecting portion 122-2 in the rigid portion 122 is directly connected to the circuit board outside the insulating shell 300.

[0087] Referring to Figure 8 , in an embodiment, the surface of the insulating shell 300 is provided with a first boss 310. Referring to Figure 9 , the first boss 310 refers to the first protruding portion added to the insulating shell 300. The first boss 310 is used to cooperate with the overall housing.

[0088] Specifically, referring to Figure 9 , the first boss 310 is clamped and cooperated with the overall housing (not shown), on the one hand, the stability of the connector 10 after being installed in the overall housing is improved, and on the other hand, the connector 10 is usually sealed by sealant after being installed in the installation port (not shown) of the overall housing. The first boss 310 can block the sealant from flowing out of the installation port, so that the connector 10 can be stably fixed in the installation port after the sealant is solidified, and the connector 10 is prevented from shaking.

[0089] Referring to Figure 9 , in an embodiment, the surface of the insulating shell 300 is also provided with a second boss 320. The first boss 310 refers to the second protruding portion added to the insulating shell 300. The first boss 310 and the second boss 320 are arranged in a spaced manner, and the second boss 320 protrudes from the surface of the insulating shell 300 in the same direction as the first boss 310.

[0090] Specifically, referring to Figure 9The second protrusion 320 is also clamped with the whole machine shell, and the second protrusion 320 can effectively prevent the sealant from flowing out of the mounting port, thereby further improving the stability of the connector 10 after being mounted in the whole machine shell.

[0091] Referring to Figure 6 In an embodiment, the surface of the insulating shell 300 is further provided with two clamping members 330 arranged at intervals. The clamping member 330 protrudes from the surface of the insulating shell 300, and the clamping member 330 can swing relative to the insulating shell 300 about the connecting point between the clamping member 330 and the insulating shell 300 under the action of an external force. The clamping member 330 is provided with a clamping head 331, which is a protruding part on the clamping member 330, and the clamping head 331 is used for clamping with a groove (not shown) on the adapter. The clamping head 331 and the corresponding clamping member 330 together form a clamping hook.

[0092] In this way, referring to Figure 6 By clamping the insulating shell 300 to the adapter through the clamping of the clamping head 331 on the clamping member 330 with the groove on the adapter, the stability of the electrical connection between the end of the connecting portion 111 away from the crimping portion 112 and the adapter can be ensured, the electrical connection between the connecting portion 111 and the adapter can be prevented from loosening, and the electrical connection between the connecting portion 111 and the adapter can be prevented from being disconnected.

[0093] Referring to Figure 6 In an embodiment, the surface of the insulating shell 300 is further provided with two clamping grooves 340. The clamping groove 340 includes but is not limited to a groove. The clamping groove 340 is used for clamping with a clamping block (not shown) on the adapter.

[0094] In this way, referring to Figure 6 By clamping the insulating shell 300 to the adapter through the clamping of the clamping groove 340 on the insulating shell 300 with the clamping block on the adapter, the stability of the electrical connection between the end of the connecting portion 111 away from the crimping portion 112 and the adapter can be ensured, the electrical connection between the connecting portion 111 and the adapter can be prevented from loosening, and the electrical connection between the connecting portion 111 and the adapter can be prevented from being disconnected.

[0095] Referring to Figure 10 In an embodiment, the connector 10 includes two conductive connecting members 100 arranged at intervals, and two positioning members 200 corresponding to the two conductive connecting members 100, and each conductive connecting member 100 is arranged in the insulating shell 300. Each positioning member 200 limits the movement of the transition portion 122-1 of the corresponding conductive connecting member 100.

[0096] In this way, referring to Figure 10The two conductive connectors 100 are arranged in the insulating shell 300, so that the connector 10 can be connected with two adapters at the same time. Specifically, the connecting part 111 of the connecting terminal 110 in each conductive connector 100 is electrically connected with one adapter.

[0097] It can be understood that, referring to Figure 10 In an embodiment, the connector 10 comprises a connecting piece 400, which is detachably connected with the insulating shell 300, including but not limited to snap connection, threaded connection. The connecting piece 400 is located between the two positioning pieces 200, and the two ends of the connecting piece 400 are connected with the support parts 230 in the two positioning pieces 200, respectively.

[0098] An embodiment of the present application provides a power converter (not shown), which can be an inverter or an optimizer, etc. Specifically, the power converter of an embodiment comprises a whole machine shell and the aforementioned connector 10. The whole machine shell is used to protect the electronic devices such as circuit boards inside the power converter. The whole machine shell is provided with a mounting port, and the connector 10 is arranged in the mounting port. Further, the power converter can comprise a plurality of connectors 10.

[0099] Further, in an embodiment, the whole machine shell comprises a first shell (not shown) and a second shell (not shown), the first shell and the second shell are opposite to each other and jointly form the mounting port, the first shell and the second shell are both provided with a plurality of first clamping grooves (not shown) and a plurality of second clamping grooves (not shown) arranged at intervals, the first bosses 310 on the surface of the insulating shell 300 in the connector 10 are clamped with the two first clamping grooves, and the second bosses 320 on the surface of the insulating shell 300 in the connector 10 are clamped with the two second clamping grooves. In this way, the connector 10 can be firmly fixed in the mounting port, so as to effectively prevent the sealant from flowing out of the mounting port, and further improve the stability of the connector 10 after being installed in the whole machine shell after the sealant is solidified.

[0100] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0101] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. An electrically conductive connector, characterized by The conductive connecting piece (100) comprises: a connecting terminal (110) comprising a connecting part (111) and a crimping part (112) connected with the connecting part (111); a conductive structure (120) comprising a flexible part (121) and a rigid part (122) connected with the flexible part (121), the flexible part (121) being crimped on the crimping part (112) and connected with the crimping part (112); The rigidity of the flexible part (121) is less than that of the rigid part (122), and the rigid part (122) is used to connect with the circuit board.

2. The electrically conductive connection of claim 1, wherein, The flexible part (121) and the rigid part (122) are of an integral structure, and one end of the flexible part (121) is crimped on the crimping part (112).

3. The electrically conductive connection of claim 1, wherein, The crimping part (112) comprises a sleeve part (112-1) and two crimping claws (112-2), and the two crimping claws (112-2) are respectively arranged on the opposite sides of the sleeve part (112-1); the sleeve part (112-1) is connected with the connecting part (111); Each of the crimping claws (112-2) is configured to be close to the sleeve part (112-1) around the connecting point of itself and the sleeve part (112-1) to crimp the flexible part (121).

4. The electrically conductive connector of claim 2, wherein, The rigid part (122) comprises a transition part (122-1) and a connecting part (122-2), the transition part (122-1) is connected to one end of the flexible part (121) away from the crimping part (112), the connecting part (122-2) is connected to one end of the transition part (122-1) away from the flexible part (121), and a bending angle is formed between the connecting part (122-2) and the transition part (122-1).

5. The electrically conductive connection of claim 4, wherein, The transition part (122-1) and the connecting part (122-2) are of an integral structure.

6. The electrically conductive connector of claim 4, wherein, The bending angle is greater than 0° and less than 180°.

7. A connector characterized by comprising: The connector (10) comprises a conductive connecting piece (100) according to any one of claims 4-6.

8. The connector of claim 7, wherein, The connector (10) comprises a positioning member (200), and the positioning member (200) comprises a positioning pin (210); The transition part (122-1) is provided with a positioning hole (123) penetrating through the transition part (122-1) along a first direction, and the positioning pin (210) is arranged in the positioning hole (123).

9. The connector of claim 8, wherein, The positioning member (200) comprises two limiting members (220), and the two limiting members (220) are correspondingly arranged on the opposite sides of the transition part (122-1) along a second direction intersecting the first direction.

10. The connector of claim 9, wherein, The positioning member (200) comprises a supporting part (230), and the supporting part (230) is connected between the two limiting members (220) and contacts one side of the transition part (122-1) along the first direction.

11. The connector of claim 10, wherein, Each of the limiting members (220) is provided with a stop block (221), and each of the stop blocks (221) contacts one side of the transition part (122-1) away from the supporting part (230).

12. The connector of claim 8, wherein, The connector (10) further comprises an insulating shell (300), the conductive connecting piece (100) is arranged in the insulating shell (300), and the connecting terminal (110) of the conductive connecting piece (100) is arranged in the insulating shell (300). The connecting part (111) of the connecting terminal (110) is arranged at an end away from the crimping part (112) and is used for connecting an adapter.

13. The connector of claim 12, wherein, The rigid part (122) of the conductive structure (120) in the conductive connecting piece (100) is located outside the insulating shell (300).

14. The connector of claim 12, wherein, A first boss (310) is arranged on the surface of the insulating shell (300) and is used for cooperating with a whole machine shell.

15. The connector of claim 14, wherein, A second boss (320) is further arranged on the surface of the insulating shell (300), the first boss (310) and the second boss (320) are arranged at intervals, and the second boss (320) and the first boss (310) protrude from the surface of the insulating shell (300) in the same direction.

16. The connector of claim 15, wherein, Two clamping pieces (330) are further arranged at intervals on the surface of the insulating shell (300), the clamping pieces (330) protrude from the surface of the insulating shell (300), clamping joints (331) are arranged on the clamping pieces (330), and the clamping joints (331) are used for clamping grooves on the adapter.

17. The connector of claim 15, wherein, Two clamping grooves (340) are further arranged on the surface of the insulating shell (300), and the clamping grooves (340) are used for clamping clamping blocks on the adapter.

18. The connector of claim 12, wherein, The connector (10) comprises two conductive connecting pieces (100) arranged at intervals, and two positioning pieces (200) corresponding to the two conductive connecting pieces (100), and each conductive connecting piece (100) is arranged in the insulating shell (300).

19. A power converter characterized by, The connector (10) comprises two conductive connecting pieces (100) arranged at intervals, and two positioning pieces (200) corresponding to the two conductive connecting pieces (100), and each conductive connecting piece (100) is arranged in the insulating shell (300).

20. The power converter of claim 19, wherein, The whole machine shell comprises a first shell and a second shell, the first shell and the second shell are opposite to each other and jointly form the mounting port, first clamping grooves and second clamping grooves are arranged at intervals on the first shell and the second shell, the first boss (310) on the surface of the insulating shell (300) in the connector (10) is clamped with the two first clamping grooves, and the second boss (320) on the surface of the insulating shell (300) in the connector (10) is clamped with the two second clamping grooves.

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