Power distribution equipment, power supply system and vehicle

Abstract

The utility model relates to power distribution equipment, a power supply system and a vehicle. The power distribution equipment comprises a main circuit conductive piece; the first current detection piece is arranged at the main circuit conductive piece, and the first current detection piece is used for detecting the current at the main circuit conductive piece; the first end of the branch circuit conductive assembly is electrically connected with the main circuit conductive piece; the second current detection piece is arranged at the branch conductive component and is used for detecting the current at the branch conductive component; the first end of the power distribution connection assembly is electrically connected with the second end of the branch conductive assembly, and the second end of the power distribution connection assembly is used for being connected with electric equipment. According to the power distribution equipment provided by the embodiment of the invention, dual current detection of the power distribution equipment is realized, so that whether the power distribution equipment has a current abnormal condition or not can be judged through the main circuit current, and whether the power distribution equipment has the current abnormal condition or not can also be judged through the branch circuit current, and the safety of the power distribution equipment is improved.

Description

Technical Field

[0001] This application relates to the field of power distribution technology, and in particular to a power distribution device, power supply system and vehicle. Background Technology

[0002] Distribution boxes, distribution containers, and other power distribution equipment are mainly used to distribute the main power supply to at least two electrical devices through different circuits. Each circuit is protected by circuit breakers or fuses to prevent overload and short circuits.

[0003] The safety of power distribution equipment in related technologies still needs to be improved. Utility Model Content

[0004] This application provides a power distribution device that effectively improves the safety of the power distribution device, thereby at least partially solving the above-mentioned technical problems.

[0005] To achieve the above objectives, according to a first aspect of this application, a power distribution device is provided, comprising:

[0006] Main conductive components;

[0007] A first current detection device is disposed at the main conductive component, and the first current detection device is used to detect the current at the main conductive component.

[0008] A branch conductive component, wherein the first end of the branch conductive component is electrically connected to the main conductive component;

[0009] A second current detection device is disposed at the branch conductive component, and the second current detection device is used to detect the current at the branch conductive component;

[0010] A power distribution connection assembly, wherein a first end of the power distribution connection assembly is electrically connected to a second end of the branch conductive assembly, and the second end of the power distribution connection assembly is used to connect electrical equipment.

[0011] Optionally, the main conductive component, the first current detection component, and the branch conductive component are electrically connected in sequence.

[0012] Optionally, the branch conductive assembly further includes at least two conductive parts and at least two fuses, with at least two fuses corresponding one-to-one with at least two conductive parts. The first end of each fuse is electrically connected to the main conductive component, and the second end of each fuse is electrically connected to the first end of each conductive part.

[0013] Optionally, the branch conductive assembly further includes a housing, in which the conductive part and the fuse are both mounted.

[0014] Optionally, the power distribution equipment further includes a negative conductive element, which is installed in the housing and electrically connected to the power-consuming equipment.

[0015] Optionally, both the negative conductive element and the conductive part are disposed adjacent to the power distribution connection assembly.

[0016] Optionally, the housing has at least two mounting cavities, each corresponding to one of the at least two fuses, and the fuses are installed in the mounting cavities such that adjacent fuses are spaced apart.

[0017] Optionally, the power distribution equipment further includes a positive conductive element, the first end of which is electrically connected to the main conductive element, and the second end of which is embedded in or passes through the housing and is electrically connected to the fuse.

[0018] Optionally, the second current sensing element is mounted on the housing.

[0019] Optionally, the power distribution equipment further includes an insulating separator disposed between the second current detection element and the conductive part.

[0020] Optionally, the second current detection device includes a current detection plate and at least two current detection elements. The current detection elements are mounted on the current detection plate and located at the conductive portion. The at least two current detection elements correspond one-to-one with the at least two conductive portions. The current detection elements are used to detect the current at the conductive portion.

[0021] Optionally, the conductive part is provided with a slot, wherein,

[0022] The housing is provided with at least two heat dissipation holes, each of which corresponds one-to-one with a slot in one of the at least two conductive parts, and the heat dissipation holes communicate with the slots; and / or,

[0023] The current sensing element is positioned directly opposite the slot; and / or,

[0024] The distance between the current sensing element and the conductive part is between 0.1 mm and 0.3 mm.

[0025] Optionally, the power distribution equipment further includes a first electrical connector, the branch conductive component is connected to the power distribution connection component through the first electrical connector, and the power distribution equipment further includes a filter component, the filter component being disposed at the first electrical connector.

[0026] Optionally, the filtering component includes a filter magnetic ring, and the first electrical connector passes through the filter magnetic ring.

[0027] Optionally, the power distribution equipment further includes a switching element electrically connected between the main conductive component and the branch conductive component.

[0028] According to a second aspect of this application, a power supply system is provided, including the power distribution equipment as described above.

[0029] According to a third aspect of this application, a vehicle is also provided, including the power supply system described above.

[0030] In the power distribution equipment of this application embodiment, current flows along the main conductive component, branch conductive component, power distribution connection component, and power-consuming equipment. A first current detection device can detect the current at the main conductive component. Since the current must pass through the main conductive component before flowing to the branch conductive component, the first current detection device can detect the main current of the power distribution equipment. A second current detection device can detect the current at the branch conductive component, thus realizing the detection of the branch current of the power distribution equipment. In other words, by setting up the first and second current detection devices, this application can realize the detection of both the main current and branch current of the power distribution equipment, achieving dual current detection. This allows for the determination of whether there is an abnormal current condition in the power distribution equipment through both the main current and the branch current, improving the safety of the power distribution equipment.

[0031] At the same time, the total power consumption of the power distribution equipment can be determined by the main current, and the power consumption of the branch conductive components can be determined by the branch current. Since the branch conductive components are connected to the power equipment, the power consumption of the power equipment can be determined.

[0032] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0035] Figure 1 This is a schematic diagram of the structure of the power distribution equipment provided in an exemplary embodiment of this disclosure;

[0036] Figure 2This is one of the partial structural schematic diagrams of the power distribution equipment provided in the exemplary embodiments of this disclosure;

[0037] Figure 3 This is a second schematic diagram of a portion of the structure of the power distribution equipment provided in the exemplary embodiments of this disclosure;

[0038] Figure 4 This is an exploded view of a portion of the structure of the power distribution equipment provided in an exemplary embodiment of this disclosure;

[0039] Figure 5 This is a schematic diagram of the structure of the second current detection device provided in an exemplary embodiment of this disclosure;

[0040] Figure 6 This is the third of the partial structural schematic diagrams of the power distribution equipment provided in the exemplary embodiments of this disclosure;

[0041] Figure 7 This is a circuit diagram of the power distribution equipment provided in an exemplary embodiment of this disclosure.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Main conductive component; 2. First current detection component; 3. Branch conductive component; 4. Second current detection component; 5. Power distribution connection component; 6. Negative conductive component; 7. Positive conductive component; 8. Insulating separator; 9. First electrical connection component; 10. Filter component; 11. Second electrical connection component; 20. Switching element; 30. Housing; 31. Conductive part; 32. Fuse; 33. Shell; 41. Current detection board; 42. Current detection element; 51. Power distribution connection component; 101. Filter magnetic ring; 311. Slot; 331. Mounting cavity; 332. Heat dissipation hole. Detailed Implementation

[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0045] According to the first aspect of this application, see Figures 1 to 7This application provides a power distribution device, including a main conductor 1, a first current detection element 2, a branch conductor assembly 3, a second current detection element 4, and a power distribution connection assembly 5. The first current detection element 2 is disposed at the main conductor 1 and is used to detect the current at the main conductor 1. The first end of the branch conductor assembly 3 is electrically connected to the main conductor 1. The second current detection element 4 is disposed at the branch conductor assembly 3 and is used to detect the current at the branch conductor assembly 3. The first end of the power distribution connection assembly 5 is electrically connected to the second end of the branch conductor assembly 3, and the second end of the power distribution connection assembly 5 is used to connect electrical equipment.

[0046] Understandably, the current flows along the main conductive component 1, branch conductive components 3, power distribution connection components 5, and the electrical equipment. The first current detection element 2 can detect the current at the main conductive component 1. Since the current must pass through the main conductive component 1 before flowing to the branch conductive component 3, the first current detection element 2 can detect the main current of the power distribution equipment. The second current detection element 4 can detect the current at the branch conductive component 3, thus realizing the detection of the branch current of the power distribution equipment. In other words, by setting the first current detection element 2 and the second current detection element 4, this application can realize the detection of both the main current and branch current of the power distribution equipment, achieving dual current detection of the power distribution equipment. Therefore, it can determine whether there is an abnormal current in the power distribution equipment through both the main current and the branch current, thereby improving the safety of the power distribution equipment.

[0047] At the same time, the total power consumption of the power distribution equipment can be determined by the main current, and the power consumption of the branch conductive component 3 can be determined by the branch current. Since the branch conductive component 3 is connected to the power-consuming equipment, the power consumption of the power-consuming equipment can be determined.

[0048] Understandably, placing the first current detection element 2 at the main circuit conductive component 1 enables the detection of the total current of the power distribution equipment. This facilitates the direct calculation of the power and energy consumption of all electrical appliances operating on the power distribution lines, while simultaneously reducing the cumulative acquisition errors of at least two branch current sensors and improving the accuracy of the total current detection. The second current detection element 4 is placed at the branch circuit conductive component 3 to facilitate the detection of the current in each power distribution branch. This allows for the calculation of the power and energy consumption of appliances such as air compressors, steering systems, overhead heating devices, and defrosters. It also monitors the operation of heat-generating appliances such as PTC and battery heaters, preventing prolonged abnormal overcurrent in heating devices.

[0049] In some examples, the first current sensing element 2 can be electrically connected to the main circuit of the power distribution equipment to directly detect the main circuit current of the power distribution equipment. The first current sensing element 2 can also be spaced apart from the main circuit conductive element 1 to achieve non-contact current detection.

[0050] In some examples, the first current sensing element 2 is, for example, a Hall current sensor or a differential current sensor.

[0051] In some examples, electrical equipment includes motors, DC drives, air compressor controllers, OBCs, compressors, PTC cabs, battery heaters, and superstructure controllers.

[0052] In some embodiments, the main conductive component 1, the first current detection component 2, and the branch conductive component 3 are electrically connected in sequence.

[0053] It is understandable that the first current detection element 2 is electrically connected between the main circuit conductive element 1 and the branch circuit conductive component 3, so that the current must first flow through the first current detection element 2 before flowing to the branch circuit conductive component 3. This allows the first current detection element 2 to detect the total current flowing into the branch circuit conductive component 3, thereby realizing the detection of the main circuit current of the power distribution equipment.

[0054] In some embodiments, see Figure 2 and Figure 3 The branch conductive component 3 includes at least two conductive parts 31. The first end of the conductive part 31 is electrically connected to the main conductive component 1. The first current detection component 2 is used to detect the current at each conductive part 31.

[0055] The power distribution connection assembly 5 includes at least two power distribution connectors 51, each of which corresponds to at least two conductive parts 31. The second end of each conductive part 31 is electrically connected to the power distribution connector 51.

[0056] It is understood that at least two conductive parts 31 are connected in parallel and electrically connected to the main conductive part 1, that is, each conductive part 31 is a branch, and each branch is connected to a power distribution connector 51. The power distribution connector 51 is used to connect to the electrical equipment, so that each branch can be connected to an electrical equipment.

[0057] The first current detection element 2 can detect the current at each conductive part 31, thereby knowing the current at each conductive part 31, that is, the current flowing to each electrical device, realizing the detection of the branch current of the power distribution equipment, determining the power consumption of each electrical device, and helping to improve the intelligence level of the power distribution equipment.

[0058] In some examples, the conductive part 31 is, for example, a conductive copper busbar or wire.

[0059] In some examples, the first end of the conductive part 31 can be directly connected to the main conductive part 1, or it can be indirectly connected.

[0060] In some embodiments, see Figure 2 and Figure 3The branch conductive component 3 also includes at least two fuses 32, each of which corresponds to at least two conductive parts 31. The first end of the fuse 32 is electrically connected to the main conductive component 1, and the second end of the fuse 32 is electrically connected to the first end of the conductive part 31.

[0061] It is understood that a fuse 32 is connected between each conductive part 31 and the main conductive part 1. That is, each branch circuit of the power distribution equipment includes a fuse 32, a conductive part 31 and a power distribution connector 51. When the current in one branch is abnormal, the fuse 32 will disconnect the current in that branch in time, so that the current cannot flow through the main conductive part 1 to that branch, thereby improving the safety of the power distribution equipment.

[0062] Meanwhile, the second current detection element 4 can detect the current of each branch of the power distribution equipment. When the fuse 32 is stuck or other abnormal, and cannot disconnect the current of the corresponding branch in time, the second current detection element 4 can detect the abnormal current of the branch in time, so as to take protective measures such as disconnecting the main current in time, thereby improving the safety of the power distribution equipment.

[0063] In some examples, at least two fuses 32 are set at equal intervals.

[0064] In some examples, a metal nut is pre-embedded below the input terminal of each fuse 32 to facilitate the fastening of the fuse 32 and the conductive part 31 with bolts.

[0065] In some embodiments, see Figure 2 and Figure 4 The branch conductive component 3 also includes a housing 33, and the conductive part 31 and the fuse 32 are both installed in the housing 33.

[0066] Understandably, the housing 33 can limit and fix the conductive part 31 and the fuse 32, thereby improving the installation stability of the conductive part 31 and the fuse 32.

[0067] By mounting both the conductive part 31 and the fuse 32 on the housing 33, the structural integration of the branch conductive component 3 is improved, which is beneficial to reducing the structural size of the branch conductive component 3 and the power distribution equipment.

[0068] In some embodiments, see Figure 2 and Figure 3 The power distribution equipment also includes a negative conductive component 6, which is installed in the housing 33 and is electrically connected to the power-consuming equipment.

[0069] Understandably, current flows into the electrical device through the conductive part 31 and the power distribution connector 51, and then flows out from the electrical device to the negative conductive part 6 to form a conductive circuit. Both the negative conductive part 6 and the power distribution connector 51 are mounted on the housing 33, which means that the positive and negative ports of the power distribution device are both formed on the housing 33. Since the positive and negative ports of the power distribution device need to be connected to the electrical device, integrating the positive and negative ports of the power distribution device into the housing 33 facilitates the connection between the electrical device and the positive and negative ports, and helps to shorten the length of the connection line between the electrical device and the power distribution device.

[0070] The negative conductive component 6 is installed in the housing 33, which can limit and fix the negative conductive component 6, thus improving its stability. At the same time, the negative conductive component 6, the conductive part 31, and the fuse 32 are all installed in the housing 33, which improves the structural integration of the branch conductive assembly 3 and helps to reduce the structural size of the branch conductive assembly 3 and the power distribution equipment.

[0071] In some embodiments, see Figure 2 Both the negative electrode conductive component 6 and the conductive part are arranged adjacent to the power distribution connection component 5.

[0072] It is understandable that the power distribution connector 51 is used to connect with electrical equipment, which requires connecting wires to connect the power distribution connector 5 and the negative conductive part 6 together, and also requires connecting wires to connect the conductive part and the power distribution connector 5 together. Therefore, by setting the negative conductive part 6 and the conductive part adjacent to the power distribution connector 5, the distance between the negative conductive part 6 and the power distribution connector 5 is shortened, the distance between the conductive part and the power distribution connector 5 is shortened, and thus the length of the connecting wire between the power distribution connector 5 and the negative conductive part 6 can be shortened, thereby reducing the messiness of the wiring harness in the power distribution equipment.

[0073] In some embodiments, see Figure 2 and Figure 4 The housing 33 has at least two mounting cavities 331, and the at least two mounting cavities 331 correspond one-to-one with at least two fuses 32. The fuses 32 are installed in the mounting cavities 331 so that adjacent fuses 32 are spaced apart.

[0074] It is understandable that the fuses 32 are installed in the corresponding mounting cavities 331, so that different fuses 32 are spaced apart, so as to achieve electrical isolation between different fuses 32.

[0075] In some examples, a separator is provided between two adjacent fuses 32 to separate them.

[0076] In some examples, two adjacent mounting cavities 331 are spaced apart, so that two adjacent fuses 32 are spaced apart.

[0077] In some examples, at least two mounting cavities 331 are arranged in parallel at equal intervals.

[0078] In some embodiments, see Figure 2 and Figure 3 The power distribution equipment also includes a positive conductive element 7. The first end of the positive conductive element 7 is electrically connected to the main conductive element 1, and the second end of the positive conductive element 7 is embedded in or passes through the housing 33 and is electrically connected to the fuse 32.

[0079] It is understandable that the current at the main conductive component 1 can flow to the fuse 32 through the positive conductive component 7. The positive conductive component 7 is embedded in or passes through the housing 33, so that the housing 33 can limit and fix the positive conductive component 7, so that the positive conductive component 7 can stably connect the main conductive component 1 and the fuse 32.

[0080] In some examples, the second end of the positive conductive element 7 includes at least two connecting portions, each corresponding to at least two fuses 32. Each connecting portion is embedded in or passes through the housing 33 to facilitate connection between the connecting portion and the fuse 32.

[0081] In some embodiments, the second current sensing element 4 is mounted on the housing 33.

[0082] Understandably, the housing 33 can limit and fix the second current detection element 4, thereby improving the installation stability of the second current detection element 4.

[0083] Installing the second current detection element 4 on the housing 33 improves the structural integration of the branch conductive component 3, which is beneficial to reducing the structural size of the branch conductive component 3 and the power distribution equipment.

[0084] In some embodiments, see Figure 4 , Figure 5 and Figure 6 The power distribution equipment also includes an insulating separator 8, which is disposed between the second current detection element 4 and the conductive part 31.

[0085] It is understandable that the insulating separator 8 is used to separate the second current detection element 4 and the conductive part 31 to ensure that the power distribution equipment can meet the electrical safety requirements.

[0086] In some examples, the insulating separator 8 is, for example, insulating paper.

[0087] In some examples, the insulating separator 8 is provided with a first fixing hole so that fasteners can be inserted through the insulating separator 8 to fix the insulating separator 8. The first fixing hole can serve the functions of fixing and positioning.

[0088] In some embodiments, see Figure 4 and Figure 5 The second current detection device 4 includes a current detection plate 41 and at least two current detection elements 42. The current detection elements 42 are mounted on the current detection plate 41 and are located at the conductive part 31. The at least two current detection elements 42 correspond one-to-one with the at least two conductive parts 31. The current detection elements 42 are used to detect the current at the conductive part 31.

[0089] It is understandable that each current detection element 42 can detect the current at the corresponding conductive part 31, thereby realizing the detection of the current at all conductive parts 31 and the detection of the current in all branch circuits of the power distribution equipment.

[0090] In some examples, the fuse 32 and the current detection board 41 are both fixed to the housing 33 by bolts, which can be disassembled and installed separately, which is beneficial for replacing damaged or failed components and reducing maintenance costs.

[0091] In some embodiments, the housing 33 is formed with a positioning post, which is connected to the current detection plate 41 to realize the positioning of the current detection plate 41.

[0092] In some embodiments, see Figure 3 and Figure 4 The conductive part 31 is provided with a slot 311, and the housing 33 is provided with at least two heat dissipation holes 332. The at least two heat dissipation holes 332 correspond one-to-one with the slots 311 of the at least two conductive parts 31, and the heat dissipation holes 332 are connected to the slots 311.

[0093] It is understandable that the heat of the heat-conducting component can be dissipated through the slot 311, and the heat dissipation hole 332 is connected to the slot 311, so the heat of the conductive part 31 can be dissipated through the heat dissipation hole 332, which is beneficial to improving the heat dissipation speed of the conductive part 31.

[0094] In some embodiments, the conductive part 31 is provided with a slot 311, wherein the current sensing element 42 is directly opposite the slot 311.

[0095] It is understandable that the slot 311 of the conductive part 31 and the current detection element 42 are arranged opposite to each other to facilitate the current detection element 42 to detect the current of the conductive part 31.

[0096] In some embodiments, the conductive part 31 is provided with a slot 311, wherein the distance between the current sensing element 42 and the conductive part 31 is between 0.1 mm and 0.3 mm.

[0097] It is understandable that setting the distance between the current sensing element 42 and the slot 311 between 0.1mm and 0.3mm ensures the detection accuracy of the current sensing element 42.

[0098] In some examples, the distance between the current sensing element 42 and the conductive part 31 is preferably 0.2 mm.

[0099] In some examples, when the current sensing element 42 is a differential current sensor, the distance between the current sensing element 42 and the slot 311 is set between 0.1 mm and 0.3 mm, which facilitates the current sensing element 42 in acquiring the magnetic field strength, thereby ensuring the current sensing accuracy of the current sensing element 42.

[0100] In some embodiments, see Figure 1 and Figure 2 The power distribution equipment also includes a first electrical connector 9, and the branch conductive component 3 is connected to the power distribution connection component 5 through the first electrical connector 9. The power distribution equipment also includes a filter component 10, which is located at the first electrical connector 9.

[0101] Understandably, the current flows along the direction of the branch conductive component 3, the first electrical connector 9, and the distribution connector 51. By setting the filter component 10 at the first electrical connector 9, the filter component 10 can filter out the noise at the first electrical connector 9, making the output at the distribution connector 51 more stable.

[0102] In some examples, the power distribution equipment also includes a second electrical connector 11, which is electrically connected to the power distribution connector 51 and the negative conductor 6.

[0103] In some embodiments, see Figure 1 and Figure 2 The filter assembly 10 includes a filter magnetic ring 101, and a first electrical connector 9 passes through the filter magnetic ring 101.

[0104] It is understandable that the filter magnetic ring 101 can filter out the noise at the first electrical connector 9, that is, it can filter the current flowing to the power distribution connector 51, which is used to connect with the electrical equipment. Thus, the filter magnetic ring 101 can improve the output stability of the power distribution equipment.

[0105] In some examples, there are at least two filter magnetic rings 101, with a portion of the first electrical connector 9 passing through one of the filter magnetic rings 101 and a portion of the first electrical connector 9 passing through the other filter magnetic ring 101.

[0106] In some embodiments, see Figure 1 and Figure 2 The power distribution equipment also includes a switching element 20, which is electrically connected between the main conductive component 1 and the branch conductive component 3.

[0107] It is understandable that by setting a switching element 20 between the main conductive component 1 and the branch conductive component 3, that is, by setting a switching element 20 at the main circuit of the power distribution equipment, the main circuit of the power distribution equipment can be switched on and off through the switching element 20.

[0108] In some examples, the switching element 20 is, for example, a relay.

[0109] Specifically, the safety of the power distribution equipment is mainly achieved through the combined use of relays and fuses 32. The relays close the power distribution lines, while the fuses 32 can break the circuit when an abnormal overcurrent occurs in a branch, thus disconnecting the line. The first current detection element 2 and the second current detection element 4 monitor the current in the line. When an abnormal overcurrent occurs, and the fuse 32 malfunctions or fails to completely break, the relays can be controlled to disconnect, thus cutting off the abnormal overcurrent line and ensuring safety.

[0110] In some examples, the switching element 20 is electrically connected, for example, between the first current sensing element 2 and the branch conductive component 3.

[0111] In some embodiments, see Figure 1 The power distribution equipment includes a housing 30, and the housing 33 has at least two second fixing holes. The branch conductive component 3 also includes at least two steel sleeves, each corresponding to one of the at least two second fixing holes. The steel sleeves are located in the fixing holes, with a portion of the steel sleeve protruding from the second fixing holes. Fasteners pass through the steel sleeves and connect to the fixing posts of the housing 30. It is understood that the portion of the steel sleeve protruding from the second connecting holes allows the fasteners to abut against the steel sleeves rather than directly against the housing 33, thus preventing the fasteners from damaging the housing 33.

[0112] In some examples, the steel sleeve protrudes 0.5 mm above the second fixing hole.

[0113] In some embodiments, the housing 33 is provided with at least two positioning holes arranged diagonally to facilitate the positioning and fixing of the housing 33.

[0114] According to a second aspect of this application, this application provides a power supply system including the aforementioned power distribution equipment.

[0115] It is understandable that by setting up the first current detection element 2 and the second current detection element 4, the detection of the main circuit current and the branch circuit of the power distribution equipment can be realized, thus realizing dual current detection of the power distribution equipment. In this way, it is possible to determine whether there is an abnormal current in the power distribution equipment by checking the main circuit current or the branch circuit current, thereby improving the safety of the power distribution equipment and thus improving the safety of the power supply system.

[0116] According to a third aspect of this application, this application provides a vehicle including the aforementioned power supply system.

[0117] It is understandable that by setting up the first current detection element 2 and the second current detection element 4, the main circuit current and branch circuit current of the power distribution equipment can be detected, realizing dual current detection of the power distribution equipment. Thus, it is possible to determine whether there is an abnormal current in the power distribution equipment by checking the main circuit current or the branch circuit current, thereby improving the safety of the power distribution equipment, improving the safety of the power supply system, and ultimately improving the safety of the vehicle.

[0118] In some examples, the vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not specifically limit this.

[0119] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or at least two features. In the description of this application, "at least two" means two or more, unless otherwise explicitly specified.

[0120] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0121] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0122] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A power distribution device, characterized in that, include: Main conductive components; A first current detection device is disposed at the main conductive component, and the first current detection device is used to detect the current at the main conductive component. A branch conductive component, wherein the first end of the branch conductive component is electrically connected to the main conductive component; A second current detection device is disposed at the branch conductive component, and the second current detection device is used to detect the current at the branch conductive component; A power distribution connection assembly, wherein a first end of the power distribution connection assembly is electrically connected to a second end of the branch conductive assembly, and the second end of the power distribution connection assembly is used to connect electrical equipment.

2. The power distribution equipment according to claim 1, characterized in that, The main conductive component, the first current detection component, and the branch conductive component are electrically connected in sequence.

3. The power distribution equipment according to claim 1, characterized in that, The branch conductive assembly further includes at least two conductive parts and at least two fuses, with each of the at least two fuses corresponding to one of the at least two conductive parts. The first end of each fuse is electrically connected to the main conductive component, and the second end of each fuse is electrically connected to the first end of the conductive part.

4. The power distribution equipment according to claim 3, characterized in that, The branch conductive assembly also includes a housing, and the conductive part and the fuse are both mounted in the housing.

5. The power distribution equipment according to claim 4, characterized in that, The power distribution equipment also includes a negative conductive component, which is installed in the housing and electrically connected to the power-consuming equipment.

6. The power distribution equipment according to claim 5, characterized in that, Both the negative electrode conductive element and the conductive part are arranged adjacent to the power distribution connection assembly.

7. The power distribution equipment according to claim 5, characterized in that, The housing has at least two mounting cavities, each corresponding to one of the at least two fuses. The fuses are installed in the mounting cavities such that adjacent fuses are spaced apart.

8. The power distribution equipment according to claim 5, characterized in that, The power distribution equipment also includes a positive conductive element, the first end of which is electrically connected to the main conductive element, and the second end of which is embedded in or passes through the housing and is electrically connected to the fuse.

9. The power distribution equipment according to claim 5, characterized in that, The second current sensing element is mounted on the housing.

10. The power distribution equipment according to claim 9, characterized in that, The power distribution equipment also includes an insulating separator, which is disposed between the second current detection element and the conductive part.

11. The power distribution equipment according to claim 10, characterized in that, The second current detection device includes a current detection plate and at least two current detection elements. The current detection elements are mounted on the current detection plate and located at the conductive part. The at least two current detection elements correspond one-to-one with the at least two conductive parts. The current detection elements are used to detect the current at the conductive part.

12. The power distribution equipment according to claim 11, characterized in that, The conductive part is provided with a slot, wherein... The housing is provided with at least two heat dissipation holes, each of which corresponds one-to-one with a slot in one of the at least two conductive parts, and the heat dissipation holes are connected to the slots; and / or, The current sensing element is positioned directly opposite the slot; and / or, The distance between the current sensing element and the conductive part is between 0.1 mm and 0.3 mm.

13. The power distribution equipment according to any one of claims 1 to 12, characterized in that, The power distribution equipment further includes a first electrical connector, and the branch conductive component is connected to the power distribution connection component through the first electrical connector. The power distribution equipment also includes a filter component, which is located at the first electrical connector.

14. The power distribution equipment according to claim 13, characterized in that, The filtering component includes a filter magnetic ring, and the first electrical connector passes through the filter magnetic ring.

15. The power distribution equipment according to any one of claims 1 to 12, characterized in that, The power distribution equipment also includes a switching element, which is electrically connected between the main conductive component and the branch conductive component.

16. A power supply system, characterized in that, Includes the power distribution equipment as described in any one of claims 1 to 15.

17. A vehicle, characterized in that, Includes the power supply system as described in claim 16.

Images