Connector, electric device shell and inverter

Abstract

The embodiment of the utility model relates to the technical field of photovoltaic power generation, in particular to a connector, an electric device shell and an inverter. The connector comprises a connector shell and a connecting conductor, the connector shell is used for being installed on a shell of a device to be connected, the first end of the connecting conductor is fixed in the connector shell, the second end of the connecting conductor extends out of the connector shell and is used for being connected with a circuit board of the device to be connected, and the connecting conductor has elasticity. Therefore, the connecting conductor can stretch and retract between the shell and the circuit board. According to the connector, the second end of the connecting conductor is directly connected with the circuit board of the device to be connected, so that the connector can be electrically connected with the circuit board without additionally connecting a flexible lead at the tail end of the connector, and the connection of the connector is simpler and more convenient. Besides, the connecting conductor can stretch between the shell and the circuit board, so that the connecting conductor can adapt to manufacturing errors of the circuit board and the shell, and the connection operation of the connector is more reliable.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of photovoltaic power generation, and particularly to a connector, an electrical component housing, and an inverter. Background Art

[0002] In a photovoltaic power generation system, a connector is usually required to achieve the electrical connection between a photovoltaic module and an inverter, so as to ensure that the direct current in the photovoltaic module can be effectively input into the inverter.

[0003] In the related art, a flexible wire is usually additionally connected to the tail end of the connector, and then the flexible wire is electrically connected to the circuit board in the inverter. For the above connection method of the connector, it is necessary to perform corresponding wiring operations on one end of the flexible wire and the tail end of the connector, and perform corresponding wiring operations on the other end of the flexible wire and the circuit board, making the connection of the connector relatively complex and cumbersome.

[0004] Therefore, there is an urgent need for a connector, an electrical component housing, and an inverter to solve the above problems. Utility Model Content

[0005] The purpose of the embodiments of this specification is to provide a connector, an electrical component housing, and an inverter, so that the connection of the connector is simpler and more convenient, and the connecting conductor can adapt to the manufacturing errors of the circuit board and the housing, making the connection operation of the connector more reliable.

[0006] To achieve this purpose, the embodiments of this specification adopt the following technical solutions:

[0007] A connector includes:

[0008] A connector housing for mounting on the housing of a device to be connected; and

[0009] A connecting conductor, the first end of the connecting conductor is fixed inside the connector housing, and the second end of the connecting conductor extends out of the connector housing and is used to connect to the circuit board of the device to be connected, wherein the connecting conductor has elasticity.

[0010] As an optional solution, the connecting conductor is a sheet metal piece, and at least one bend is provided on the sheet metal piece;

[0011] Alternatively, the connecting conductor is a conductor spring;

[0012] Alternatively, the connecting conductor is a conductor spring piece.

[0013] As an alternative, a clamping member is fixedly sleeved on the outer peripheral wall of the connecting conductor. A plurality of elastic clamping claws are arranged at intervals along the circumferential direction of the outer peripheral wall of the clamping member. The elastic clamping claws are opened relative to the outer peripheral wall of the clamping member, and the elastic clamping claws are clamped and fixed to the inner wall of the connector housing.

[0014] As an alternative, an annular clamping groove is provided on the inner wall of the connector housing, and the elastic clamping claw is clamped in the annular clamping groove.

[0015] As an alternative, an annular clamping protrusion is provided on the inner wall of the connector housing, and the elastic clamping claw is clamped and fixed to the annular clamping protrusion.

[0016] As an alternative, the connector further includes:

[0017] A sensor, the sensor is arranged on the connector housing, and the pins of the sensor are connected to the circuit board. The sensor is configured to detect the direct current of the connecting conductor and / or the arcing signal of the connecting conductor.

[0018] As an alternative, the sensor includes:

[0019] A sensor housing, arranged on the connector housing; and

[0020] A sensor magnetic core, accommodated in the sensor housing. The pins of the sensor magnetic core extend out of the sensor housing and are connected to the circuit board. The sensor magnetic core surrounds at least part of the connecting conductor. The sensor magnetic core is configured to detect the direct current of the connecting conductor and / or the arcing signal of the connecting conductor.

[0021] As an alternative, the bent portion of the connecting conductor abuts against the inner wall of the sensor.

[0022] As an alternative, the sensor housing includes a detachable upper cover and a base. The upper cover and the base are snap-fitted to form a receiving space for accommodating the sensor magnetic core;

[0023] A protrusion protrudes from the top end of the base towards the upper cover. The protrusion is located in the opening at the top end of the upper cover. The sensor magnetic core is sleeved on the protrusion, and a conductor through hole is provided on the protrusion. The second end of the connecting conductor passes through the conductor through hole and is connected to the circuit board.

[0024] As an alternative, the upper cover is provided with a pin through hole, and the pin passes through the pin through hole and is connected to the circuit board.

[0025] As an alternative, the sensor magnetic core includes:

[0026] A DC sensor core is accommodated within the sensor housing. The pins of the DC sensor core extend out of the sensor housing and are connected to the circuit board. The DC sensor core is disposed around the connection conductor, and the DC sensor core is configured to detect the DC current of the connection conductor; and / or

[0027] An arcing sensor core is accommodated within the sensor housing. The pins of the arcing sensor core extend out of the sensor housing and are connected to the circuit board. The arcing sensor core is disposed around the connection conductor, and the arcing sensor core is configured to detect the arcing signal of the connection conductor.

[0028] As an alternative, the sensor housing is snap - connected to the connector housing, and there is a snap - connection gap between the sensor housing and the connector housing.

[0029] As an alternative, one of the sensor housing and the connector housing is provided with a snap - connection protrusion, and the other of them is provided with a snap - connection groove. The snap - connection groove extends along the elastic deformation direction of the connection conductor, and the snap - connection protrusion can be snapped into the snap - connection groove and move relative to the snap - connection groove.

[0030] As an alternative, abutting protrusions are provided on both inner walls of the snap - connection groove opposite to each other. The two abutting protrusions divide the snap - connection groove into a first groove and a second groove that are communicated with each other. The first groove and the second groove are arranged in sequence along the extending direction of the snap - connection groove. The snap - connection protrusion can move in the first groove and the snap - connection protrusion can abut against the abutting protrusion.

[0031] As an alternative, a guiding inclined surface is provided on one side of the snap - connection protrusion facing the first groove. The guiding inclined surface is used to guide the snap - connection protrusion to slide from the second groove into the first groove.

[0032] An electrical component housing includes a housing and the connector as described above, and the connector is installed on the housing.

[0033] As an alternative, an installation hole is provided on the housing. A connection nut is provided on the outer side of the connector. The connector housing passes through the installation hole, and the connection nut is threadedly connected to the connector housing and abuts against the housing.

[0034] As an alternative, an annular protrusion is provided on the outer periphery of the connector housing, and the annular protrusion abuts against the side of the housing away from the connection nut.

[0035] As an alternative, an annular protrusion is provided on the outer periphery of the connector housing. The electrical component housing further includes:

[0036] A sealing gasket is sleeved on the outer periphery of the connector housing. The sealing gasket is located on the side of the housing away from the connecting nut, and the sealing gasket is clamped between the annular protrusion and the housing.

[0037] An inverter includes a circuit board and the electrical component housing as described above. The circuit board is located inside the housing, and the connector is connected to the circuit board.

[0038] An embodiment of this specification provides a connector, which includes a connector housing and a connecting conductor. Among them, the connector housing is used to be installed on the housing of the device to be connected. The first end of the connecting conductor is fixed inside the connector housing, and the second end of the connecting conductor extends out of the connector housing and is used to be connected to the circuit board of the device to be connected. And the connecting conductor has elasticity so that the connecting conductor can expand and contract between the housing and the circuit board. For the connector provided by the embodiment of this specification, directly connecting the second end of the connecting conductor to the circuit board of the device to be connected can realize the electrical connection between the connector and the circuit board, without additionally connecting a flexible wire at the tail end of the connector. Connecting to the circuit board through the connecting conductor makes the connection of the connector simpler and more convenient. In addition, since the connecting conductor has elasticity and can expand and contract between the housing and the circuit board, the connecting conductor can adapt to the manufacturing errors of the circuit board and the housing, eliminating the installation stress caused by the manufacturing errors of the circuit board and the housing, and making the connection operation of the connector more reliable.

[0039] An embodiment of this specification also provides an electrical component housing and an inverter. By applying the above connector, the connection of the connector is made simpler and more convenient, and the connecting conductor can also adapt to the manufacturing errors of the circuit board and the housing, eliminating the installation stress caused by the manufacturing errors of the circuit board and the housing, and making the connection operation of the connector more reliable. Description of the Drawings

[0040] Figure 1 is a partial structural cross-sectional view of the inverter provided in Embodiment 1 of this specification;

[0041] Figure 2 is Figure 1 the enlarged view of the structure at A in

[0042] Figure 3 is a partial structural cross-section of the connector provided in Embodiment 1 of this specification Figure 1 ;

[0043] Figure 4 is a partial structural cross-section of the connector provided in Embodiment 1 of this specification Figure 2 ;

[0044] Figure 5It is an exploded view of the structure of the connector provided in Embodiment 1 of this specification;

[0045] Figure 6 It is an exploded view of the structure of the sensor provided in Embodiment 1 of this specification;

[0046] Figure 7 It is a schematic diagram of the structure of the connector provided in Embodiment 1 of this specification;

[0047] Figure 8 It is a partial structure schematic diagram of the inverter provided in Embodiment 1 of this specification Figure 1 ;

[0048] Figure 9 It is Figure 7 an enlarged view of the structure at position B in

[0049] Figure 10 It is a partial structure schematic diagram of the inverter provided in Embodiment 1 of this specification Figure 2 ;

[0050] Figure 11 It is a block diagram of the structure of the inverter provided in Embodiment 1 of this specification;

[0051] Figure 12 It is an exploded view of the structure of the sensor provided in Embodiment 2 of this specification;

[0052] Figure 13 It is an exploded view of the structure of the sensor provided in Embodiment 3 of this specification.

[0053] In the figure:

[0054] 10. Connector; 20. Metal panel; 201. Mounting hole; 30. Circuit board; 40. Sealing gasket; 50. Controller; 60. Voltage stabilizing circuit;

[0055] 1. Connector housing; 11. Annular clamping groove; 12. Clamping groove; 121. First groove; 122. Second groove; 123. Abutting protrusion; 13. Annular protrusion; 14. Annular clamping protrusion; 15. Clamping gap; 2. Connecting conductor; 21. Clamping part; 211. Elastic clamping claw; 22. Bend; 23. First end; 24. Second end; 3. Sensor; 31. Sensor housing; 311. Upper cover; 3111. Opening; 312. Base; 3121. Clamping protrusion; 31211. Guide slope; 3122. Protrusion; 313. Pin perforation; 314. Conductor perforation; 32. Sensor core; 321. DC sensor core; 322. Arc sensor core; 323. Pin; 4. Connecting nut. Detailed implementation manners

[0056] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the embodiments of this specification clearer, the technical solutions of the embodiments of this specification will be further described below in conjunction with the accompanying drawings and through specific implementation manners.

[0057] In the description of the embodiments of this specification, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this specification can be understood according to specific situations.

[0058] In the embodiments of this specification, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0059] In the description of this embodiment, the orientation or positional relationship such as "above", "below", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, 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. Therefore, it should not be understood as a limitation to the embodiments of this specification. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0060] Embodiment 1

[0061] In a photovoltaic power generation system, a connector is usually required to achieve the electrical connection between a photovoltaic module and a device to be connected, so as to ensure that the direct current in the photovoltaic module can be effectively input into the device to be connected. During the electrical connection process of the existing connector, a flexible wire needs to be additionally connected to the tail end of the connector, and then the flexible wire is electrically connected to the circuit board in the device to be connected. When the flexible wire is electrically connected to the circuit board in the device to be connected, a cold crimp terminal needs to be crimped on the flexible wire first, and then the flexible wire with the cold crimp terminal pressed is fixed to the welding terminal by a screw, and then the welding terminal is welded to the circuit board to achieve the connection between the flexible wire and the circuit board. The connection method of the above connector requires corresponding wiring operations for one end of the flexible wire and the tail end of the connector, and corresponding wiring operations for the other end of the flexible wire and the circuit board, making the connection of the connector relatively complex and cumbersome. In addition, in the related art, the connector needs to be fixedly installed on the housing of the device to be connected to achieve the installation and fixation of the connector on the device to be connected. After the connector is electrically connected to the circuit board, due to certain processing errors in both the housing and the circuit board of the device to be connected, the connector cannot be accurately fixed on the housing of the device to be connected, reducing the reliability of the connector connection operation.

[0062] To solve the above problems, as Figure 1 shown, this embodiment provides a connector 10, which includes a connector housing 1 and a connecting conductor 2. Among them, the connector housing 1 is used to be installed on the housing of the device to be connected, the first end 23 of the connecting conductor 2 is fixed inside the connector housing 1, the second end 24 of the connecting conductor 2 extends out of the connector housing 1 and is used to be connected to the circuit board 30 of the device to be connected, and the connecting conductor 2 has elasticity so that the connecting conductor 2 can stretch between the housing and the circuit board 30. The connector 10 provided in this embodiment can directly connect the second end 24 of the connecting conductor 2 to the circuit board 30 of the device to be connected to achieve the electrical connection between the connector 10 and the circuit board 30, without additionally connecting a flexible wire to the tail end of the connector 10. By electrically connecting the connecting conductor 2 to the circuit board 30, the connection of the connector 10 becomes simpler and more convenient. In addition, since the connecting conductor 2 has elasticity and can stretch between the housing and the circuit board 30, the connecting conductor 2 can adapt to the manufacturing errors of the circuit board 30 and the housing, eliminating the installation stress caused by the manufacturing errors of the circuit board 30 and the housing, and making the connection operation of the connector 10 more reliable. It should be noted that in this embodiment, the connector housing 1 is a plastic housing. In addition, it should be noted that in this embodiment, the second end 24 of the connecting conductor 2 is welded to the circuit board 30. In other embodiments, the second end 24 of the connecting conductor 2 can also be fixedly connected to the circuit board 30 by bolts.

[0063] Optionally, in this embodiment, the connecting conductor 2 is a sheet metal piece, and the sheet metal piece is provided with at least one bend 22. The above setting ensures the electrical conductivity of the connecting conductor 2 and enables the connecting conductor 2 to have a certain amount of expansion and contraction, ensuring that the connecting conductor 2 can adapt to the manufacturing errors of the circuit board 30 and the housing. Optionally, multiple bends 22 can be provided on the sheet metal piece, so that the part of the sheet metal piece inside the connector housing 1 is in an S shape, or multiple bends 22 can be provided on the sheet metal piece, so that the part of the sheet metal piece inside the connector housing 1 is in a wavy shape. This embodiment does not limit the specific structure of the sheet metal piece, as long as it is ensured that the connecting conductor 2 can expand and contract between the housing and the circuit board 30. Exemplarily, the expansion and contraction amount of the connecting conductor 2 can reach 2 mm, 3 mm, etc. It should be noted that the expansion and contraction amount of the connecting conductor 2 between the housing and the circuit board 30 is the expansion and contraction amount of the connecting conductor 2 in the axial direction of the connector housing 1.

[0064] Optionally, in other embodiments, the connecting conductor 2 can also be designed in the form of a conductor spring or a conductor elastic piece, so that the connecting conductor 2 can expand and contract between the housing and the circuit board 30.

[0065] In this embodiment, as Figure 1 and Figure 2 shown, a clamping member 21 is fixedly sleeved on the outer peripheral wall of the connecting conductor 2. A plurality of elastic clamping claws 211 are arranged at intervals along the circumferential direction of the outer peripheral wall of the clamping member 21. The elastic clamping claws 211 open relative to the outer peripheral wall of the clamping member 21, and the elastic clamping claws 211 are clamped and fixed to the inner wall of the connector housing 1. With the above setting, when the first end 23 of the connecting conductor 2 is inserted into the inside of the connector housing 1, the elastic clamping claws 211 are slightly compressed and closed under the extrusion of the inner wall of the connector housing 1, so as to ensure the elastic clamping of the elastic clamping claws 211 to the inner wall of the connector housing 1, realizing the clamping and fixing of the first end 23 of the connecting conductor 2 inside the connector housing 1. The above setting makes the installation of the connecting conductor 2 inside the connector housing 1 more convenient and the structure is simple.

[0066] Optionally, as Figure 2 shown, an annular clamping groove 11 is provided on the inner wall of the connector housing 1, and the elastic clamping claws 211 are clamped in the annular clamping groove 11. With the above setting, when the clamping member 21 is pushed to the position of the annular clamping groove 11, the elastic clamping claws 211 can be elastically reset, so that the elastic clamping claws 211 are clamped in the annular clamping groove 11, thereby realizing the clamping and fixing of the first end 23 of the connecting conductor 2 inside the connector housing 1.

[0067] Optionally, as Figure 3 shown, it is also possible to directly elastically clamp and connect the elastic clamping claws 211 to the inner wall of the connector housing 1. Optionally, as Figure 4As shown, an annular clamping projection 14 can also be provided on the inner wall of the connector housing 1, so that the elastic clamping claw 211 is clamped and fixed to the annular clamping projection 14.

[0068] In the prior art, it is usually necessary for a sensor to detect the direct current flowing through the connector and the arcing signal of the connector to ensure the normal operation of the connector. In the related art, the sensor needs to be separately welded to the circuit board 30. Since the tail end of the connector is wired to the circuit board 30 through a flexible wire, a pair of pluggable connectors need to be additionally connected to one end of the flexible wire for wiring to the circuit board 30, ensuring that the sensor is arranged adjacent to the pluggable connector and that the sensor is arranged around the flexible wire, so as to ensure that the magnetic core of the sensor detects the direct current flowing through the connector and the arcing signal of the connector. However, the above arrangement requires an additional pluggable connector, making the structure complex, greatly increasing the cost of detection, and also increasing the volume and occupied space of the entire connector.

[0069] To solve the above problems, as Figure 1 and Figure 5 shown, the connector 10 provided in this embodiment further includes a sensor 3. The sensor 3 is installed on the connector housing 1, and the pins 323 of the sensor 3 are welded to the circuit board 30. The sensor 3 is used to detect the direct current of the connecting conductor 2 and the arcing signal of the connecting conductor 2. The connector 10 provided in this embodiment directly integrates and installs the sensor 3 on the connector housing 1 of the connector 10, and can ensure the detection of the connecting conductor 2 by the sensor 3 without additionally setting a pair of pluggable connectors, making the structure simple, the cost low, and also reducing the volume and occupied space of the entire connector 10.

[0070] Optionally, in this embodiment, as Figure 1 、 Figure 5 and Figure 6 shown, the sensor 3 includes a sensor housing 31 and a sensor magnetic core 32. Among them, the sensor housing 31 is arranged on the connector housing 1, the sensor magnetic core 32 is accommodated in the sensor housing 31, the pins 323 of the sensor magnetic core 32 extend out of the sensor housing 31 and are welded to the circuit board 30, the sensor magnetic core 32 is arranged around at least part of the connecting conductor 2, and the sensor magnetic core 32 is used to detect the direct current of the connecting conductor 2 and the arcing signal of the connecting conductor 2. The above arrangement not only ensures the reliable detection of the connecting conductor 2 by the sensor 3, but also improves the protection effect on the sensor magnetic core 32. Since the principle and structure of the sensor magnetic core 32 for detecting the connecting conductor 2 belong to the prior art, they will not be elaborated here. It should be noted that in this embodiment, the sensor magnetic core 32 is arranged around the bending 22 of the connecting conductor 2.

[0071] Optionally, in this embodiment, the bent portion 22 of the connection conductor 2 abuts against the inner wall of the sensor 3. With the above arrangement, the stability and reliability of the relative position between the connection conductor 2 and the sensor 3 are improved.

[0072] In this embodiment, as Figure 5 and Figure 6 shown, the sensor housing 31 includes an upper cover 311 and a base 312 that can be detachably snapped together. The upper cover 311 and the base 312 are snapped together to form a receiving space for receiving the sensor core 32. Optionally, in this embodiment, the upper cover 311 and the base 312 can be fixedly connected by a tongue-and-groove connection, making the installation and disassembly between the upper cover 311 and the base 312 more convenient. Optionally, in this embodiment, the sensor housing 31 is a plastic housing.

[0073] Optionally, in this embodiment, as Figures 5 to 7 shown, the sensor 3 is located at the second end 24 of the connection conductor 2. The sensor housing 31 is provided with a pin through-hole 313 and a conductor through-hole 314. Among them, the pin through-hole 313 is used for the pin 323 of the sensor core 32 to extend out of the sensor housing 31 and be welded to the circuit board 30, and the conductor through-hole 314 is used for the second end 24 of the connection conductor 2 to pass through the sensor housing 31 and be welded to the circuit board 30.

[0074] Specifically, in this embodiment, the upper cover 311 is provided with a pin through-hole 313, the base 312 protrudes with a protrusion 3122 towards the top of the upper cover 311. The sensor core 32 is sleeved on the protrusion 3122. The protrusion 3122 is located in the opening 3111 at the top of the upper cover 311, and the protrusion 3122 is provided with a conductor through-hole 314. By providing the protrusion 3122, the positioning and installation of the sensor core 32 in the receiving space of the sensor housing 31 are realized, ensuring the accuracy of the installation position of the sensor core 32. It should be noted that in this embodiment, the bent portion 22 of the connection conductor 2 abuts against the inner wall of the protrusion 3122.

[0075] Optionally, in this embodiment, as Figure 6 shown, the sensor core 32 includes a DC sensor core 321 and an arc-sensing sensor core 322. Both the DC sensor core 321 and the arc-sensing sensor core 322 are received in the sensor housing 31. The pin 323 of the DC sensor core 321 extends out of the sensor housing 31 through the pin through-hole 313 and is welded to the circuit board 30. The DC sensor core 321 is arranged around the connection conductor 2. The DC sensor core 321 is used to detect the DC current of the connection conductor 2. The pin 323 of the arc-sensing sensor core 322 extends out of the sensor housing 31 through the pin through-hole 313 and is welded to the circuit board 30. The arc-sensing sensor core 322 is arranged around the connection conductor 2. The arc-sensing sensor core 322 is used to detect the arc signal of the connection conductor 2.

[0076] Optionally, in this embodiment, as Figures 7 to 9 shown, the sensor housing 31 is snap-connected to the connector housing 1, and there is a snap gap 15 between the sensor housing 31 and the connector housing 1. With the above arrangement, since the sensor housing 31 is snap-connected to the connector housing 1, the installation and disassembly of the sensor 3 on the connector housing 1 are more convenient. In addition, with the above arrangement, since there is a snap gap 15 between the sensor housing 31 and the connector housing 1, the sensor 3 can move a preset distance along the axial direction of the connector housing 1, so as to adapt to the manufacturing errors of the circuit board 30 and the housing, thereby eliminating the installation stress caused by the manufacturing errors of the circuit board 30 and the housing. It should be noted that the preset distance is the same as the telescopic amount of the connecting conductor 2. Exemplarily, the preset distance is 2 mm.

[0077] Optionally, in this embodiment, as Figures 5 to 7 shown, a snap projection 3121 is provided on one of the sensor housing 31 and the connector housing 1, and a snap groove 12 is provided on the other one of them. The snap groove 12 extends along the moving direction of the sensor housing 31 (i.e., the axial direction of the connector housing 1), and the snap projection 3121 can be snapped into the snap groove 12 and move relative to the snap groove 12. In this embodiment, the snap projection 3121 is provided on the sensor housing 31, and the snap groove 12 is provided on the connector housing 1. Specifically, in this embodiment, the snap projection 3121 is provided on the base 312. Optionally, in other embodiments, the snap groove 12 can also be provided on the sensor housing 31, and the snap projection 3121 can be provided on the connector housing 1. By providing the mutually cooperating snap projection 3121 and snap groove 12, the snap connection between the sensor housing 31 and the connector housing 1 is realized.

[0078] Optionally, in this embodiment, as Figure 9As shown in the figure, abutting protrusions 123 are provided on the inner walls of the two opposite sides of the clamping groove 12. The two abutting protrusions 123 divide the clamping groove 12 into a first groove 121 and a second groove 122 that are connected and communicate with each other. The first groove 121 and the second groove 122 are arranged in sequence along the moving direction of the sensor housing 31. The clamping protrusion 3121 can move in the first groove 121, and the clamping protrusion 3121 can abut against the abutting protrusion 123. It should be noted that the extension length of the first groove 121 is greater than the size of the clamping protrusion 3121, so that there is a clamping gap 15 between the first groove 121 and the clamping protrusion 3121, so that the clamping protrusion 3121 can move a preset distance relative to the first groove 121, thereby eliminating the installation stress caused by the manufacturing errors of the circuit board 30 and the housing. In addition, by providing two opposite abutting protrusions 123, the abutting limit of the clamping protrusion 3121 is realized, thereby limiting the extreme position of the clamping protrusion 3121 moving towards the circuit board 30. The inner wall of the first groove 121 on the side away from the circuit board 30 can abut against the clamping protrusion 3121, realizing the abutting limit of the clamping protrusion 3121, thereby limiting the extreme position of the clamping protrusion 3121 moving away from the circuit board 30.

[0079] Optionally, in this embodiment, as Figure 9 shown, a guiding inclined surface 31211 is provided on the side of the clamping protrusion 3121 facing the first groove 121. The guiding inclined surface 31211 is used to guide the clamping protrusion 3121 to slide from the second groove 122 into the first groove 121. By providing the guiding inclined surface 31211 on the clamping protrusion 3121, it is convenient for the clamping protrusion 3121 to slide from the second groove 122 into the first groove 121 and be clamped, making the clamping of the clamping protrusion 3121 in the first groove 121 more convenient.

[0080] As Figure 1 and Figure 8 shown, this embodiment also provides an electrical component housing, which includes a housing and the above-mentioned connector 10, and the connector 10 is installed on the housing. By applying the above-mentioned connector 10 in the electrical component housing provided in this embodiment, the connection of the connector 10 is made simpler and more convenient, and the connecting conductor 2 can also adapt to the manufacturing errors of the circuit board 30 and the housing, eliminating the installation stress caused by the manufacturing errors of the circuit board 30 and the housing, and making the connection operation of the connector 10 more reliable.

[0081] Optionally, in this embodiment, as Figure 1 and Figure 8As shown, the housing includes a metal panel 20, and mounting holes 201 are provided on the metal panel 20. A connecting nut 4 is provided on the connector 10. The connector housing 1 is passed through the mounting hole 201, and the connecting nut 4 is threadedly connected to the connector housing 1 and abuts against the metal panel 20. With the above settings, the installation and fixation of the connector 10 on the metal panel 20 are realized, and the structure is simple and the installation is convenient.

[0082] Optionally, in this embodiment, as Figure 1 and Figure 8 shown, an annular protrusion 13 is provided on the outer periphery of the connector housing 1. The electrical component housing further includes a sealing gasket 40. The sealing gasket 40 is sleeved on the outer periphery of the connector housing 1. The sealing gasket 40 is located on the side of the metal panel 20 away from the connecting nut 4, and the sealing gasket 40 is clamped between the annular protrusion 13 and the metal panel 20. By providing the sealing gasket 40, the tightness of the installation and fixation of the connector 10 on the metal panel 20 is effectively improved, the connection sealing effect on the mounting hole 201 is improved, and thus the protection level of the entire inverter is improved, meeting the protection safety level of IP67.

[0083] Optionally, as Figure 10 shown, the sealing gasket 40 may not be provided, so that the annular protrusion 13 directly abuts against the side of the metal panel 20 away from the connecting nut 4, thereby realizing the positioning and installation of the connector 10 on the metal panel 20.

[0084] As Figure 1 and Figure 8 shown, this embodiment further provides an inverter, which includes a circuit board 30 and the above-mentioned electrical component housing. The circuit board 30 is located inside the housing, and the connector 10 is connected to the circuit board 30. By applying the above-mentioned electrical component housing in the inverter provided in this embodiment, the connection of the connector 10 is made simpler and more convenient, and the connecting conductor 2 can also adapt to the manufacturing errors of the circuit board 30 and the housing, eliminating the installation stress caused by the manufacturing errors of the circuit board 30 and the housing, and making the connection operation of the connector 10 more reliable. Optionally, in this embodiment, the circuit board 30 is a printed circuit board (PCB).

[0085] As Figure 11 shown, the inverter provided in this embodiment further includes a controller 50 and a voltage stabilizing circuit 60. Among them, the voltage stabilizing circuit 60 is electrically connected to the circuit board 30, and the voltage stabilizing circuit 60 is used to supply power to the circuit board 30. The controller 50 is communicatively connected to the sensor 3, so that the sensor 3 can transmit the detected information to the controller 50. Specifically, in this embodiment, the output end of the photovoltaic module is electrically connected to the connecting conductor 2 in the connector 10, so that the direct current in the photovoltaic module is input into the circuit board 30 of the inverter through the connecting conductor 2 of the connector 10.

[0086] Example Two

[0087] The connector 10 provided in this embodiment is basically the same as that in the first embodiment. The difference between the connector 10 provided in this embodiment and the first embodiment is as follows:

[0088] As Figure 12 shown, in this embodiment, the sensor core 32 only includes a DC sensor core 321. The DC sensor core 321 is accommodated in the sensor housing 31. The pins 323 of the DC sensor core 321 extend out of the sensor housing 31 through the pin perforations 313 and are welded to the circuit board 30. The DC sensor core 321 is arranged around the connection conductor 2. The DC sensor core 321 is used to detect the DC current of the connection conductor 2, so that the sensor 3 detects the DC current of the connection conductor 2.

[0089] Example Three

[0090] The connector 10 provided in this embodiment is basically the same as that in the first embodiment. The difference between the connector 10 provided in this embodiment and the first embodiment is as follows:

[0091] As Figure 13 shown, in this embodiment, the sensor core 32 only includes an arc sensor core 322. The arc sensor core 322 is accommodated in the sensor housing 31. The pins 323 of the arc sensor core 322 extend out of the sensor housing 31 through the pin perforations 313 and are welded to the circuit board 30. The arc sensor core 322 is arranged around the connection conductor 2. The arc sensor core 322 is used to detect the arc signal of the connection conductor 2, so that the sensor 3 detects the arc signal of the connection conductor 2.

[0092] Obviously, the above-mentioned embodiments of the embodiments of this specification are only examples for clearly explaining the embodiments of this specification, and are not limitations on the implementation manners of the embodiments of this specification. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the embodiments of this specification shall be included in the protection scope of the claims of the embodiments of this specification.

Claims

1. A connector, characterized in that, Comprising: A connector housing (1) for mounting on the housing of a device to be connected; And A connecting conductor (2), a first end (23) of the connecting conductor (2) being fixed inside the connector housing (1), and a second end (24) of the connecting conductor (2) extending out of the connector housing (1) and being configured to connect to a circuit board (30) of the device to be connected, wherein the connecting conductor (2) is elastic.

2. The connector according to claim 1, characterized in that, The connecting conductor (2) is a sheet metal piece, and the sheet metal piece is provided with at least one bend (22); Alternatively, the connecting conductor (2) is a conductor spring; Alternatively, the connecting conductor (2) is a conductor elastic piece.

3. The connector according to claim 1, characterized in that, A clamping member (21) is fixedly sleeved on the outer peripheral wall of the connecting conductor (2), and a plurality of elastic clamping claws (211) are arranged at intervals along the circumferential direction of the outer peripheral wall of the clamping member (21), the elastic clamping claws (211) being opened relative to the outer peripheral wall of the clamping member (21), and the elastic clamping claws (211) being clamped and fixed to the inner wall of the connector housing (1).

4. The connector according to claim 3, characterized in that, An annular clamping groove (11) is provided on the inner wall of the connector housing (1), and the elastic clamping claws (211) are clamped in the annular clamping groove (11).

5. The connector according to claim 3, wherein An annular clamping protrusion (14) is provided on the inner wall of the connector housing (1), and the elastic clamping claws (211) are clamped and fixed to the annular clamping protrusion (14).

6. The connector according to claim 2, characterized in that, The connector further comprises: A sensor (3) provided on the connector housing (1), and pins (323) of the sensor (3) being connected to the circuit board (30), the sensor (3) being configured to detect a direct current of the connecting conductor (2) and / or an arcing signal of the connecting conductor (2).

7. The connector according to claim 6, wherein, The sensor (3) comprises: A sensor housing (31) provided on the connector housing (1); and A sensor magnetic core (32) accommodated in the sensor housing (31), pins (323) of the sensor magnetic core (32) extending out of the sensor housing (31) to be connected to the circuit board (30), the sensor magnetic core (32) being arranged around at least a part of the connecting conductor (2), the sensor magnetic core (32) being configured to detect a direct current of the connecting conductor (2) and / or an arcing signal of the connecting conductor (2).

8. The connector according to claim 7, characterized in that A bend (22) of the connecting conductor (2) abuts against the inner wall of the sensor (3).

9. The connector according to claim 7, characterized in that, The sensor housing (31) comprises a detachable upper cover (311) and a base (312), the upper cover (311) and the base (312) being snap-fitted to form an accommodation space for accommodating the sensor magnetic core (32); The base (312) is convexly provided with a protrusion (3122) towards the top end of the upper cover (311). The protrusion (3122) is located in the opening (3111) at the top end of the upper cover (311). The sensor core (32) is sleeved on the protrusion (3122), and a conductor through-hole (314) is provided on the protrusion (3122). The second end (24) of the connecting conductor (2) passes through the conductor through-hole (314) and is connected to the circuit board (30).

10. The connector according to claim 9, characterized in that, The upper cover (311) is provided with a pin through-hole (313). The pin (323) passes through the pin through-hole (313) and is connected to the circuit board (30).

11. The connector according to claim 7, characterized in that, The sensor core (32) includes: A DC sensor core (321), which is accommodated in the sensor housing (31). The pin (323) of the DC sensor core (321) extends out of the sensor housing (31) and is connected to the circuit board (30). The DC sensor core (321) is arranged around the connecting conductor (2). The DC sensor core (321) is configured to detect the DC current of the connecting conductor (2); and / or An arc-striking sensor core (322), which is accommodated in the sensor housing (31). The pin (323) of the arc-striking sensor core (322) extends out of the sensor housing (31) and is connected to the circuit board (30). The arc-striking sensor core (322) is arranged around the connecting conductor (2). The arc-striking sensor core (322) is configured to detect the arc-striking signal of the connecting conductor (2).

12. The connector according to any one of claims 7 to 11, characterized in that, The sensor housing (31) is snap-connected to the connector housing (1), and there is a snap-fit gap (15) between the sensor housing (31) and the connector housing (1).

13. The connector according to claim 12, wherein One of the sensor housing (31) and the connector housing (1) is provided with a snap-fit protrusion (3121), and the other is provided with a snap-fit groove (12). The snap-fit groove (12) extends along the elastic deformation direction of the connecting conductor (2). The snap-fit protrusion (3121) can be snapped into the snap-fit groove (12) and move relative to the snap-fit groove (12).

14. The connector according to claim 13, wherein On the inner walls of the two opposite sides of the snap-fit groove (12), abutting protrusions (123) are provided. The two abutting protrusions (123) divide the snap-fit groove (12) into a first groove (121) and a second groove (122) that communicate with each other. The first groove (121) and the second groove (122) are arranged in sequence along the extending direction of the snap-fit groove (12). The snap-fit protrusion (3121) can move in the first groove (121), and the snap-fit protrusion (3121) can abut against the abutting protrusion (123).

15. The connector according to claim 14, wherein A guiding inclined surface (31211) is provided on the side of the snap-fit protrusion (3121) facing the first groove (121). The guiding inclined surface (31211) is used to guide the snap-fit protrusion (3121) to slide from the second groove (122) into the first groove (121).

16. An electrical component housing, characterized in that, Comprising a housing and the connector according to any one of claims 1 to 15, the connector being mounted on the housing.

17. The electrical component housing according to claim 16, wherein, An installation hole (201) is provided on the housing. A connection nut (4) is arranged on the outer side of the connector. The connector housing (1) passes through the installation hole (201), and the connection nut (4) is threadedly connected to the connector housing (1) and abuts against the housing.

18. The outer shell of the electrical component according to claim 17, characterized in that, An annular protrusion (13) is provided on the outer periphery of the connector housing (1), and the annular protrusion (13) abuts against the side of the housing away from the connection nut (4).

19. The electrical component housing according to claim 17, wherein, An annular protrusion (13) is provided on the outer periphery of the connector housing (1). The electrical component housing further includes: A sealing gasket (40), the sealing gasket (40) being sleeved on the outer periphery of the connector housing (1). The sealing gasket (40) is located on the side of the housing away from the connection nut (4), and the sealing gasket (40) is clamped between the annular protrusion (13) and the housing.

20. An inverter, characterized in that, Comprising a circuit board (30) and the electrical component housing according to any one of claims 16 to 19, the circuit board (30) is located inside the housing, and the connector is connected to the circuit board (30).

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