Current acquisition device, distribution box and electric equipment

Abstract

The utility model relates to a current acquisition device, a distribution box and electric equipment. The current acquisition device comprises a conductive part, a circuit board, a first acquisition module and a second acquisition module. Wherein the circuit board comprises a connector, the first acquisition module comprises an acquisition piece which is arranged on the circuit board and is electrically connected with the connector, and the second acquisition module is arranged on the circuit board and is electrically connected with the connector. The first acquisition module is used for detecting a first current signal of the conductive member, and the second acquisition module is used for detecting a second current signal of the conductive member. By integrating the acquisition piece of the first acquisition module and the second acquisition module on the same circuit board and communicating the acquisition piece and the second acquisition module to the connector of the circuit board, synchronous acquisition of current of the conductive piece by the first acquisition module and the second acquisition module can be realized, use of external wire harnesses can be reduced, and the cost is reduced. And the integration level of the current acquisition device is higher.

Description

Technical Field

[0001] The present disclosure relates to the field of current detection, and in particular to a current acquisition device, a distribution box, and electrical equipment. Background Art

[0002] Hall sensors and shunts can be used in combination in a distribution box to measure the current in a working circuit. In related technologies, the Hall sensors and shunts need to be connected together using fasteners, which adds redundant wiring harnesses and has a low degree of integration. Utility Model Content

[0003] The purpose of the present disclosure is to provide a current collection device, a distribution box and an electrical device, wherein the current collection device can reduce the use of wiring harnesses and has a high degree of integration.

[0004] In order to achieve the above objectives, the present disclosure provides a current collection device in a first aspect, comprising:

[0005] Conductive parts;

[0006] circuit boards, including connectors;

[0007] A first acquisition module, comprising an acquisition member provided on the circuit board and electrically connected to the connector, the first acquisition module being configured to detect a first current signal from the conductive member; and

[0008] The second acquisition module is provided on the circuit board and electrically connected to the connector, and is used for detecting a second current signal of the conductive member.

[0009] Optionally, the collecting element is constructed as a Hall element;

[0010] The first acquisition module further includes a magnetic core component, which is sleeved around the conductive member and includes a first end and a second end. The Hall element is disposed in a magnetic flux region between the first end and the second end.

[0011] Optionally, the second acquisition module is configured as a shunt resistor, and the shunt resistor is connected in parallel to the conductive element.

[0012] Optionally, a projection of the shunt resistor on the circuit board and a projection of the magnetic core component on the circuit board are arranged at intervals.

[0013] Optionally, the current collection device further includes a shell, the shell forming a through cavity passing through the shell and a accommodating cavity surrounding the through cavity, the conductive member is passed through the through cavity, part of the circuit board is arranged in the accommodating cavity, and part of the circuit board extends into the interior of the through cavity and is fixedly connected to the conductive member.

[0014] Optionally, the shell includes a shell body and a cover plate covering the shell body, the shell body and the cover plate enclose the accommodating cavity, a first channel is formed on the shell body, and a second channel corresponding to the first channel is formed on the cover plate, and the first channel is connected to the second channel to form the through cavity.

[0015] Optionally, the shell body includes an outer frame, an annular frame arranged inside the outer frame, and a bracket arranged between the annular frame and the outer frame;

[0016] The inner cavity of the annular frame forms the first channel, the outer side wall of the annular frame, the inner side wall of the outer frame and the cover plate form the accommodating cavity, and the bracket is used to support and install the circuit board and the magnetic core assembly.

[0017] Optionally, the outer frame and the annular frame are respectively sealed and connected to the cover plate on the sides facing the cover plate.

[0018] Optionally, the annular frame has a lateral opening, the bracket includes a first limiting assembly, the first limiting assembly includes two first limiting parts arranged at intervals along a first direction, a first gap corresponding to the lateral opening is formed between the two first limiting parts, and the circuit board is passed through the lateral opening and the first gap to limit the relative position between the circuit board and the shell body in the first direction.

[0019] Optionally, a second limiting assembly is provided on the inner wall of the outer frame, and the second limiting assembly is located on the side of the first limiting assembly away from the annular frame. The second limiting assembly includes two second limiting parts spaced apart along the first direction, and a second gap corresponding to the first gap is formed between the two second limiting parts, and the circuit board is passed through the second gap.

[0020] Optionally, a spacing area for accommodating the Hall element is provided between the first limiting assembly and the second limiting assembly.

[0021] Optionally, the two first limiting portions are respectively connected to the annular frame, and the two first limiting portions and the annular frame enclose a slot;

[0022] The cover plate is provided with a plug matching the slot, the plug including a slot portion, the plug is plugged into the slot so that the circuit board passes through the slot portion, and the circuit board is clamped between the plug and the bottom plate of the shell body in the second direction.

[0023] Optionally, the connector includes a connector base arranged on a circuit board, and a third limiting portion is provided on the outer frame. The third limiting portion cooperates with the connector base to limit the relative position of the circuit board and the shell in a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0024] Optionally, the bracket includes a plurality of fourth limiting portions surrounded by the annular frame and a plurality of fifth limiting portions provided on the side wall of the shell body, and the magnetic core assembly is sleeved on the plurality of fourth limiting portions so that the plurality of fourth limiting portions abut against the inner wall of the magnetic core assembly and the plurality of fifth limiting portions abut against the outer wall of the magnetic core assembly.

[0025] Optionally, the shell body is provided with a convex rib located in the accommodating cavity, and one side of the magnetic core component in the second direction abuts against the convex rib;

[0026] The cover plate is provided with a top rib matched with the convex rib, and the other side of the magnetic core component in the second direction abuts against the top rib, so that the magnetic core component is clamped between the convex rib and the top rib in the second direction.

[0027] Optionally, the conductive member is formed with a first fixing hole, the shell includes a fixing frame with a second fixing hole, and the fixing frame is connected to the first fixing hole of the conductive member via a fastener passing through the second fixing hole to fix the conductive member to the fixing frame.

[0028] A second aspect of the present disclosure provides a distribution box, comprising the current collection device as described above.

[0029] A third aspect of the present disclosure provides an electrical device, comprising the current collection device provided in the first aspect of the present disclosure and / or the distribution box provided in the second aspect of the present disclosure.

[0030] Through the above technical solution, the first acquisition module is used to detect the first current signal of the conductive part, and the second acquisition module is used to detect the second current signal of the conductive part. The acquisition part of the first acquisition module and the second acquisition module are both arranged on the same circuit board, and the acquisition part and the second acquisition module are both connected to the connector on the circuit board. The first acquisition module and the second acquisition module can realize the synchronous acquisition of the current of the conductive part, and the use of external wiring harnesses is reduced, with a higher degree of integration.

[0031] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0033] Figure 1 is a schematic diagram of the overall structure of a current collection device provided in an exemplary embodiment of the present disclosure;

[0034] Figure 2 is an exploded schematic diagram of a current collection device provided in an exemplary embodiment of the present disclosure;

[0035] Figure 3 is a schematic structural diagram of a shell body provided in an exemplary embodiment of the present disclosure;

[0036] Figure 4 is a schematic structural diagram of a cover plate provided in an exemplary embodiment of the pump disclosure;

[0037] Figure 5 is a structural schematic diagram of a circuit board and a conductive member provided in an exemplary embodiment of the present disclosure when they are installed on a housing body;

[0038] Figure 6 3 is a schematic structural diagram of a Hall element, a connector base, a conductive member, and a shunt resistor provided in an exemplary embodiment of the present disclosure, which are integrated on a circuit board.

[0039] Description of Reference Numerals

[0040] 10-conductive member; 11-mounting hole; 12-first fixing hole; 13-resistance stabilization area; 20-housing; 21-housing body; 211-outer frame; 212-annular frame; 213-bracket; 2131-first limiting assembly; 2131a-first limiting portion; 2132-fourth limiting portion; 2133-fifth limiting portion; 22-cover; 23-accommodating cavity; 24-fixing frame; 241-second fixing hole; 30-circuit board; 31-connector; 311-connector base; 312-PIN needle assembly; 40-first acquisition module; 41-acquisition component; 4 10-Hall element; 42-magnetic core assembly; 50-second acquisition module; 500-shunt resistor; 60-through cavity; 61-second channel; 62-first channel; 70-fastener; 71-bolt; 72-nut; 80-second limiting assembly; 81-second limiting portion; 90-third limiting assembly; 91-third limiting portion; 100-convex rib; 200-lateral opening; 300-first gap; 400-second gap; 600-plug; 601-card slot; 700-top rib; 800-slot; X-first direction; Y-second direction; Z-third direction. DETAILED DESCRIPTION

[0041] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0042] In the present disclosure, an XYZ coordinate system is established for the current acquisition device, wherein the X direction is the first direction, the Y direction is the second direction, and the Z direction is the third direction, wherein the first direction, the second direction, and the third direction are perpendicular to each other. Unless otherwise specified, the directional words used, such as "inside" and "outside", refer to the inside and outside relative to the outline of the component or structure itself. In addition, it should be noted that the terms used, such as "first" and "second", etc., are used to distinguish one element from another and do not have order or importance. In addition, in the description with reference to the drawings, the same mark in different drawings represents the same element.

[0043] like Figures 1 to 6 As shown, a first aspect of the present disclosure provides a current acquisition device, comprising a conductive member 10, a circuit board 30, a first acquisition module 40, and a second acquisition module 50. The circuit board 30 includes a connector 31, the first acquisition module 40 includes a acquisition member 41 disposed on the circuit board 30 and electrically connected to the connector 31, and the second acquisition module 50 is disposed on the circuit board 30 and electrically connected to the connector 31. The first acquisition module 40 is used to detect a first current signal from the conductive member 10, and the second acquisition module 50 is used to detect a second current signal from the conductive member 10. By integrating the acquisition member 41 of the first acquisition module 40 and the second acquisition module 50 on the same circuit board 30, and connecting the acquisition member 41 and the second acquisition module 50 to the connector 31 of the circuit board 30, the first acquisition module 40 and the second acquisition module 50 can simultaneously acquire the current of the conductive member 10, while also reducing the use of external wiring harnesses, thereby achieving a higher level of integration of the current acquisition device.

[0044] In the above embodiment, the first acquisition module 40 and the second acquisition module 50 may adopt different current acquisition modules to achieve synchronous acquisition of the current of the conductive member 10 by the different current acquisition modules.

[0045] In some embodiments, as Figure 2 、 Figure 5 as well as Figure 6As shown, the acquisition component 41 is configured as a Hall effect element 410. The first acquisition module 40 also includes a magnetic core assembly 42, which is sheathed around the conductive member 10. The magnetic core assembly 42 includes a first end and a second end, and the Hall effect element 410 is located in the magnetic flux region between the first and second ends. To ensure sampling accuracy for the first acquisition module 40, the Hall effect element 410 is aligned with the first and second ends of the magnetic core assembly 42. That is, the center of the Hall effect element 410 coincides with the center of the magnetic flux region, allowing the induced magnetic flux lines of the magnetic core assembly 42 to pass perpendicularly through the Hall effect element 410 on the copper busbar integrated assembly.

[0046] Furthermore, the second acquisition module 50 can be configured as a shunt resistor 500, which is connected in parallel to the conductive member 10. Specifically, the shunt resistor 500 can be connected in parallel to the resistance-stabilizing region 13 of the conductive member 10. The conductive member 10 can be configured as a copper busbar, and the resistance-stabilizing region 13 of the conductive member 10 can be made of a manganese-copper alloy.

[0047] When the first acquisition module 40 includes a Hall element 410 and a magnetic core component 42 and the second acquisition module 50 is configured as a shunt resistor 500, the two acquisition modules use different current sampling ranges. The first acquisition module 40 including the Hall element 410 and the magnetic core component 42 is suitable for collecting larger currents, and the shunt resistor 500 is suitable for collecting smaller currents. Using these two acquisition modules to collect currents from the conductive parts 10 can enable the current acquisition device to have a wider current sampling range.

[0048] In addition, the first acquisition module 40 including the Hall element 410 and the magnetic core assembly 42 and the second acquisition module 50 configured as a shunt resistor 500 can be calibrated with each other, thereby improving the sampling accuracy of current within a certain range.

[0049] It should be understood that the Hall element 410 and the shunt resistor 500 are arranged on the same circuit board, and the current signal of the same conductive member 10 is collected simultaneously, which can also reduce the number of fasteners and conductive members 10, optimize the structure, and reduce costs.

[0050] In other possible implementations, one of the first acquisition module 40 and the second acquisition module 50 may be configured as a fluxgate current sampling module, which will not be described in detail here.

[0051] In some embodiments, as Figure 2 、 Figure 5 as well as Figure 6As shown, when the first acquisition module 40 includes a Hall element 410 and a magnetic core component 42, and the second acquisition module 50 is configured as a shunt resistor 500, the shunt resistor 500 and the Hall element 410 are both provided on the circuit board 30. The projection of the shunt resistor 500 on the circuit board 30 and the projection of the magnetic core component 42 on the circuit board 30 are spaced apart to prevent the induced magnetic field on the magnetic core component 42 from affecting the sampling of the shunt resistor 500 during operation.

[0052] Furthermore, to avoid other components on the circuit board 30, the shunt resistor 500 and the Hall element 410 can be located on opposite sides of the circuit board 30. The conductive member 10 is fixedly connected to the circuit board 30 and is located on the side where the Hall element 410 is located. A gap can be provided between the conductive member 10 and the circuit board 30 in the resistance stabilization region 13 to facilitate electrical connection between the shunt resistor 500 and the conductive member 10.

[0053] In some embodiments, as Figures 1 to 5 As shown, the current acquisition device also includes a housing 20, which defines a through cavity 60 extending through the housing 20 and a receiving cavity 23 surrounding the through cavity 60. The conductive member 10 is disposed within the through cavity 60, and a portion of the circuit board 30 is disposed within the receiving cavity 23. A portion of the circuit board 30 extends into the through cavity 60 and is fixedly connected to the conductive member 10. Furthermore, a magnetic core assembly 42, which matches the Hall element 410, can be disposed within the receiving cavity 23. The configuration of the housing 20 integrates the first acquisition module 40 and the second acquisition module 50, making it easier to remove the current acquisition device during use.

[0054] In the above embodiment, the setting of the shell 20 can also protect some components of the first acquisition module 40 and the second acquisition module 50, so that some components in the accommodating cavity 23 are insulated from the outside world, so as to prevent the external circuit from affecting these components when the current acquisition device is in use.

[0055] In some embodiments, as Figures 1 to 5 As shown, the shell 20 includes a shell body 21 and a cover plate 22 covering the shell body 21. The shell body 21 and the cover plate 22 enclose a receiving cavity 23. A first channel 62 is formed on the shell body 21, and a second channel 61 corresponding to the first channel 62 is formed on the cover plate 22. The first channel 62 is connected to the second channel 61 to form a through cavity 60.

[0056] In the above embodiment, the housing 20 is composed of a housing body 21 and a cover plate 22 . The cover plate 22 is detachably fastened to the housing body 21 , so as to facilitate the assembly and disassembly of the current collection device.

[0057] In some embodiments, the housing body 21 includes an outer frame 211, an annular frame 212 disposed within the outer frame 211 and having a lateral opening 200, and a bracket 213 disposed between the annular frame 212 and the outer frame 211. The inner cavity of the annular frame 212 forms a first channel 62, and the outer wall of the annular frame 212, the inner wall of the outer frame 211, and the cover plate 22 form a receiving cavity 23. The bracket 213 is used to support and install the circuit board 30 and the magnetic core assembly 42.

[0058] The outer frame 211 and the annular frame 212 are respectively sealed and connected to the cover plate 22 on the sides facing the cover plate 22 , so as to isolate the accommodating cavity 23 from the outside, thereby insulating the components arranged in the accommodating cavity 23 from the outside.

[0059] In some embodiments, sealant may be applied to both the side of the outer frame 211 facing the cover plate 22 and the side of the annular frame 212 facing the cover plate 22, and then the side of the outer frame 211 facing the cover plate 22 may be bonded to the cover plate 22 by the sealant, and the side of the annular frame 212 facing the cover plate 22 may be bonded to the cover plate 22 by the sealant.

[0060] In some embodiments, the bracket 213 includes a first limiting component 2131, the first limiting component 2131 includes two first limiting portions 2131a spaced apart along the first direction X, a first gap 300 corresponding to the lateral opening 200 is formed between the two first limiting portions 2131a, and the circuit board 30 is passed through the lateral opening 200 and the first gap 300, for limiting the relative position between the circuit board 30 and the shell body 21 in the first direction X.

[0061] In the above embodiment, the circuit board 30 is inserted into the lateral opening 200 and the first gap 300 , so that the circuit board 30 is engaged with the lateral opening 200 and the first gap 300 in the first direction X, thereby limiting the relative position between the circuit board 30 and the shell body 21 in the first direction X.

[0062] In some embodiments, as Figure 1 and Figure 3 As shown, a second limiting component 80 is provided on the inner wall of the outer frame 211. The second limiting component 80 is located on the side of the first limiting component 2131 away from the annular frame 212. The second limiting component 80 includes two second limiting portions 81 along the first direction X. A second gap 400 corresponding to the first gap 300 is formed between the two second limiting portions 81, and the circuit board 30 is passed through the second gap 400.

[0063] In the above embodiment, the second limiting assembly 80 can provide a more stable support for the circuit board 30. The distance between the second limiting assembly 80 and the first limiting assembly 2131 can be set according to the size of the circuit board 30 to meet the requirement of stable support for the circuit board 30.

[0064] In some embodiments, as Figure 5 As shown, there is a spacing area between the first limiting component 2131 and the second limiting component 80. When the circuit board 30 is inserted into the lateral opening 200 of the annular frame 212, the first gap 300 between the two first limiting portions 2131a, and the second gap 400 between the two second limiting portions 81, the Hall element 410 provided on the circuit board 30 can be located in the spacing area, that is, the spacing area can be used to accommodate the Hall element 410. This facilitates the installation of the magnetic core component 42 so that the magnetic flux area between the magnetic core components 42 corresponds to the Hall element 410.

[0065] In some embodiments, the two first limiting portions 2131a are respectively connected to the annular frame 212, and the two first limiting portions 2131a and the annular frame 212 enclose a slot 800. The cover plate 22 is provided with a plug 600 that matches the slot 800. The plug 600 includes a slot portion 601. The plug 600 is inserted into the slot 800 so that the circuit board 30 is inserted into the slot portion 601. The circuit board 30 is clamped between the plug 600 and the shell body 21 in the second direction Y, so that the relative position of the circuit board 30 and the shell body 21 in the second direction Y is defined by the plug 600 and the shell body 21.

[0066] In the above embodiment, the two first limiting portions 2131 a can be integrally formed with the annular frame 212 .

[0067] In addition, the engagement between the plug 600 and the socket 800 can be used to position the cover 22 when it is mounted on the housing body 21 .

[0068] In some embodiments, the connector 31 includes a connector base 311 disposed on the circuit board 30. The outer frame 211 is provided with a third limiting portion 91. The third limiting portion 91 cooperates with the connector base 311 to limit the relative position of the circuit board 30 and the housing body 21 in the third direction Z. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0069] In the above embodiment, the connector base 311 is fixedly connected to the circuit board 30, and the third limiting assembly 90 includes two third limiting portions 91 arranged on the outer frame 211 and spaced apart along the third direction Z. When the circuit board 30 is installed on the shell body 21, the connector base 311 is located between the two third limiting portions 91, so that the connector base 311 is clamped between the two third limiting portions 91, which is used to limit the connector base 311, and thereby limit the relative position of the circuit board 30 and the shell body 21 in the third direction Z.

[0070] As can be seen from the above, the relative position between the circuit board 30 and the shell body 21 in the first direction X can be limited by the annular frame 212, the first limiting component 2131 and the second limiting component 80; the circuit board 30 is clamped between the plug 600 and the shell body 21 in the second direction Y by the plug 600 arranged on the cover plate 22, so as to limit the relative position between the circuit board 30 and the shell body 21 in the second direction Y; the relative position between the circuit board 30 and the shell body 21 in the third direction Z can be limited by the cooperation between the third limiting part 91 and the connector base 311. Through the above arrangement, the circuit board 30 is fixedly installed on the shell 20, and the relative position between the conductive part 10 fixedly connected to the circuit board 30 and the shell 20 can also be further limited.

[0071] In some embodiments, as Figure 1 、 Figure 2 、 Figure 5 as well as Figure 6 As shown, the connector 31 also includes a PIN needle assembly 312, which is plugged into the connector base 311. The Hall element 410 and the shunt resistor 500 are electrically connected to the connector base 311, and signal interaction is performed with an external device through the PIN needle assembly 312 to read the first current signal collected by the Hall element 410 and the second current signal collected by the shunt resistor 500.

[0072] like Figure 2 and Figure 6 As shown, the PIN needle assembly 312 may include two rows of PIN needles spaced apart along the third direction Z, wherein the first current signal collected by the Hall element 410 can be read through the PIN needles in the PIN needle assembly 312 that are in a row close to the Hall element 410 in the third direction Z, and the second current signal collected by the shunt resistor 500 can be read through the PIN needles in the PIN needle assembly 312 that are in a row far from the Hall element 410 in the third direction Z.

[0073] In other possible implementations, power may be supplied to the circuit board 30 via the connector 31 , which will not be described in detail here.

[0074] In some embodiments, the bracket 213 includes a plurality of fourth limiting portions 2132 surrounded by the annular frame 212 and a plurality of fifth limiting portions 2133 provided on the side wall of the shell body 21. The magnetic core assembly 42 is sleeved on the plurality of fourth limiting portions 2132 so that the plurality of fourth limiting portions 2132 abut against the inner wall of the magnetic core assembly 42 and the plurality of fifth limiting portions 2133 abut against the outer wall of the magnetic core assembly 42, for limiting the relative position between the magnetic core assembly 42 and the shell body 21 in the first direction X and the third direction Z.

[0075] In the above embodiment, multiple fourth limiting portions 2132 can be respectively arranged on both sides of the annular frame 212 in the first direction X, and the multiple fourth limiting portions 2132 located on both sides of the annular frame 212 in the first direction X are arranged one by one, so that the magnetic core component 42 is more stably clamped on the multiple fourth limiting portions 2132, and then abutted against the outer wall of the magnetic core component 42 through multiple fifth limiting portions 2133 arranged on the outer frame 211, which are used to limit the relative position between the magnetic core component 42 and the shell body 21 in the first direction X and the third direction Z.

[0076] In addition, if Figure 2 and Figure 5 As shown, the magnetic core assembly 42 may be provided with a groove that matches the fifth limiting portion 2133, so that a portion of the fifth limiting portion 2133 is located within the groove to better define the relative position of the magnetic core assembly 42 relative to the shell body 21. It should be noted that the groove can also cooperate with a portion of the fifth limiting portion 2133 to position the magnetic core assembly 42 during installation.

[0077] In other embodiments, Figures 1 to 5 As shown, the shell body 21 is provided with a convex rib 100 located in the accommodating cavity 23, and the magnetic core component 42 abuts against the convex rib 100 on one side in the second direction Y; the cover plate 22 is provided with a top rib 700 that cooperates with the convex rib 100, and the magnetic core component 42 abuts against the top rib 700 on the other side in the second direction Y, so that the magnetic core component 42 is clamped between the convex rib 100 and the top rib 700 in the second direction Y.

[0078] In the above embodiment, there may be multiple ribs 100. Multiple ribs 100 may be disposed in the accommodating cavity 23 around the annular frame 212. The ribs 100 may extend from the annular frame 212 toward the outer frame 211. The multiple ribs 100 can also provide a more stable clamping of the magnetic core assembly 42. Furthermore, the top rib 700 disposed on the cover plate 22 can be configured in an "L" shape. There can be two top ribs 700, one located on either side of the second channel 61 on the cover plate 22 in the first direction X. This can also provide a more stable clamping of the magnetic core assembly 42 between the ribs 100 on the shell body 21 and the top rib 700 on the cover plate 22.

[0079] It can be seen from the above that the fourth limiting portion 2132 and the fifth limiting portion 2133 can limit the position between the magnetic core assembly 42 and the shell body 21 in the first direction X and the third direction Z; the convex rib 100 and the top rib 700 can limit the position of the magnetic core assembly 42 and the shell body 21 in the second direction Y. Through the above settings, the magnetic core assembly 42 can be fixedly installed on the shell 20.

[0080] It should be understood that when the magnetic core assembly 42 is installed in the housing 20, the magnetic core assembly 42 is located in the accommodating cavity 23, so that the Hall element 410 provided on the circuit board 30 is located in the magnetic flux area between the first end and the second end of the magnetic core assembly 42. No further details are given here.

[0081] In addition, the shunt resistor 500 provided on the circuit board 30 is located in the through cavity 60 , and the housing 20 separates the magnetic core component 42 from the shunt resistor 500 , which can further prevent the magnetic core component 42 from affecting the shunt resistor 500 .

[0082] In some embodiments, the conductive member 10 is formed with a first fixing hole 12, and the shell 20 includes a fixing frame 24 having a second fixing hole 241. The fixing frame 24 is connected to the first fixing hole 12 of the conductive member 10 through a fastener 70 passing through the second fixing hole 241, thereby fixing the conductive member 10 to the fixing frame 24 and further fixing the conductive member 10 to the shell 20.

[0083] In the above embodiment, the fastener 70 may be a bolt 71 and a nut 72 , and the conductive member 10 may be fixed to the fixing bracket 24 of the housing 20 by the bolt 71 and the nut 72 .

[0084] In addition, the conductive member 10 is fixedly connected to the circuit board 30 , and the relative positions of the conductive member 10 and the circuit board 30 fixedly connected to the conductive member 10 and the housing 20 can be further defined by the fastener 70 .

[0085] In some embodiments, in order to facilitate the connection of the conductive member 10 to the circuit to be tested, a mounting hole 11 is provided on the upper shell of the conductive member 10. The conductive member 10 can be connected to the circuit to be tested through the mounting hole 11 and a screw matching the mounting hole 11, which will not be repeated here.

[0086] A second aspect of the present disclosure provides a distribution box, comprising the current collection device provided in the first aspect of the present disclosure.

[0087] A third aspect of the present disclosure provides an electrical device, comprising the current acquisition device provided in the first aspect of the present disclosure and / or the distribution box provided in the second aspect of the present disclosure. The electrical device may be a vehicle, a ship, a spacecraft, or the like. When the electrical device is a vehicle, the vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. The embodiments of the present application do not impose any special restrictions on the aforementioned electrical devices.

[0088] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0089] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0090] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A current collection device, characterized in that: include: Conductive parts; circuit boards, including connectors; a first acquisition module, comprising an acquisition member provided on the circuit board and electrically connected to the connector, the first acquisition module being configured to detect a first current signal from the conductive member; as well as The second acquisition module is provided on the circuit board and electrically connected to the connector, and is used for detecting a second current signal of the conductive member.

2. The current acquisition device according to claim 1, characterized in that: The collecting element is constructed as a Hall element; The first acquisition module further includes a magnetic core component, which is sleeved around the conductive member and includes a first end and a second end. The Hall element is disposed in a magnetic flux region between the first end and the second end.

3. The current collection device according to claim 2, characterized in that: The second acquisition module is configured as a shunt resistor, and the shunt resistor is connected in parallel to the conductive element.

4. The current collection device according to claim 3, characterized in that: The projection of the shunt resistor on the circuit board is spaced apart from the projection of the magnetic core component on the circuit board.

5. The current collection device according to claim 2, characterized in that: The current collection device also includes a shell, which is formed with a through cavity running through the shell and a accommodating cavity surrounding the through cavity. The conductive member is arranged in the through cavity, part of the circuit board is arranged in the accommodating cavity, and part of the circuit board extends into the through cavity and is fixedly connected to the conductive member.

6. The current collection device according to claim 5, characterized in that: The shell includes a shell body and a cover plate covered on the shell body, the shell body and the cover plate enclose the accommodating cavity, a first channel is formed on the shell body, and a second channel corresponding to the first channel is formed on the cover plate, the first channel is connected to the second channel to form the through cavity.

7. The current collection device according to claim 6, characterized in that: The shell body includes an outer frame, an annular frame arranged inside the outer frame, and a bracket arranged between the annular frame and the outer frame; The inner cavity of the annular frame forms the first channel, the outer side wall of the annular frame, the inner side wall of the outer frame and the cover plate form the accommodating cavity, and the bracket is used to support and install the circuit board and the magnetic core assembly.

8. The current collection device according to claim 7, characterized in that: The sides of the outer frame and the annular frame facing the cover plate are respectively sealed and connected to the cover plate.

9. The current collection device according to claim 7, characterized in that: The annular frame has a lateral opening, the bracket includes a first limiting assembly, the first limiting assembly includes two first limiting parts arranged at intervals along a first direction, a first gap corresponding to the lateral opening is formed between the two first limiting parts, and the circuit board is inserted through the lateral opening and the first gap to limit the relative position between the circuit board and the shell body in the first direction.

10. The current collection device according to claim 9, characterized in that: A second limiting assembly is provided on the inner side wall of the outer frame, and the second limiting assembly is located on the side of the first limiting assembly away from the annular frame. The second limiting assembly includes two second limiting parts spaced apart along the first direction, and a second gap corresponding to the first gap is formed between the two second limiting parts, and the circuit board is passed through the second gap.

11. The current collection device according to claim 10, characterized in that: A spacing area for accommodating the Hall element is provided between the first limiting assembly and the second limiting assembly.

12. The current collection device according to claim 9, characterized in that: The two first limiting portions are respectively connected to the annular frame, and the two first limiting portions and the annular frame enclose a slot; The cover plate is provided with a plug matching the slot, the plug including a slot portion, the plug is plugged into the slot so that the circuit board passes through the slot portion, and the circuit board is clamped between the plug and the bottom plate of the shell body in the second direction.

13. The current collection device according to claim 12, characterized in that: The connector includes a connector base arranged on a circuit board, and a third limiting portion is provided on the outer frame. The third limiting portion cooperates with the connector base to limit the relative position of the circuit board and the shell body in a third direction. The first direction, the second direction and the third direction are perpendicular to each other.

14. The current collection device according to claim 7, characterized in that: The bracket includes a plurality of fourth limiting parts surrounded by the annular frame and a plurality of fifth limiting parts arranged on the side wall of the shell body. The magnetic core component is sleeved on the plurality of fourth limiting parts so that the plurality of fourth limiting parts abut against the inner wall of the magnetic core component and the plurality of fifth limiting parts abut against the outer wall of the magnetic core component.

15. The current collection device according to claim 6, characterized in that: The shell body is provided with a convex rib located in the accommodating cavity, and one side of the magnetic core component in the second direction abuts against the convex rib; The cover plate is provided with a top rib matched with the convex rib, and the other side of the magnetic core component in the second direction abuts against the top rib, so that the magnetic core component is clamped between the convex rib and the top rib in the second direction.

16. The current acquisition device according to any one of claims 5 to 15, characterized in that: The conductive member is formed with a first fixing hole, and the housing includes a fixing bracket with a second fixing hole. The fixing bracket is connected to the first fixing hole of the conductive member via a fastener passing through the second fixing hole to fix the conductive member to the fixing bracket.

17. A distribution box, characterized in that: The device comprises a current collection device as described in any one of claims 1 to 16.

18. An electrical device, characterized in that: It comprises the current collection device according to any one of claims 1 to 16 and / or the distribution box according to claim 17.

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