Firewall-penetrating distribution box, firewall and firewall-penetrating distribution system

Abstract

The application relates to a fire-wall-penetrating power distribution box, a fire wall and a fire-wall-penetrating power distribution system. The fire-wall-penetrating power distribution box comprises a box body and a wiring structure. The box body comprises a first box body part and a second box body part. The first box body part is arranged in the fire wall. The first side of the first box body part is provided with a first wire-penetrating hole. The first wire-penetrating hole is used for penetrating a first cable through the first wire-penetrating hole and connecting to the wiring structure. The second box body part is fixedly arranged on the fire wall. The second side of the second box body part is provided with a second wire-penetrating hole. The second wire-penetrating hole is used for penetrating a second cable through the second wire-penetrating hole and connecting to the wiring structure. The fire-wall-penetrating power distribution box can reduce the space occupied by the fire-wall-penetrating power distribution box.

Description

Technical Field

[0001] This application relates to the field of power distribution technology, and in particular to firewall-penetrating distribution boxes, firewalls, and firewall-penetrating power distribution systems. Background Technology

[0002] With the continuous development of automotive electrification and intelligence, there are more and more high-power electrical devices in the front compartment of cars. Some cars, due to space constraints in the front compartment, place the battery in the driver's compartment and distribute power to the electrical devices in the front compartment through cables running through the firewall between the front compartment and the battery.

[0003] Traditional through-wall power distribution systems require several vias to be made in the firewall so that cables can pass through the firewall to distribute power to electrical equipment in the front compartment.

[0004] However, traditional through-wall power distribution devices take up a lot of space. Summary of the Invention

[0005] Therefore, it is necessary to address the issue of traditional through-wall power distribution devices occupying a large amount of space by providing a through-wall power distribution box, firewall, and through-wall power distribution system that occupy less space.

[0006] In a first aspect, this application provides a firewall-penetrating power distribution box, the firewall-penetrating power distribution box comprising: a box body and a wiring structure, the box body comprising a first box body portion and a second box body portion, wherein:

[0007] The first box body is installed through the firewall. The first side of the first box body has a first wire hole. The first wire hole is used for the first cable to pass through the first wire hole and connect to the wiring structure.

[0008] The second housing is fixedly mounted on the firewall. The second side of the second housing has a second wiring hole for the second cable to pass through and connect to the wiring structure.

[0009] In one embodiment, the firewall-penetrating power distribution box provided in this application further includes:

[0010] The first box cover, together with the first box body, forms the first box cavity;

[0011] The second box cover, together with the second box body, forms the second box cavity.

[0012] In one embodiment, the firewall-penetrating power distribution box provided in this application further includes a fixing structure for fixing the second box body to one side of the firewall.

[0013] In one embodiment, a seal is provided at the position where the first box body of the firewall-penetrating power distribution box provided in this application contacts the firewall.

[0014] In one embodiment, the first and second housing portions of the firewall-penetrating power distribution box provided in this application are arranged in an L-shape.

[0015] In one embodiment, the wiring structure of the firewall-penetrating power distribution box provided in this application includes terminal blocks and busbars, wherein:

[0016] The wiring structure has a first end of the wiring terminal inside the first housing that is fixedly connected to the first cable, and a second end of the wiring terminal that is fixedly connected to the busbar.

[0017] In one embodiment, the first box body of the firewall-penetrating power distribution box provided in this application is provided with a limiting partition, which is disposed between two wiring terminals.

[0018] In one embodiment, the wiring structure of the firewall-penetrating power distribution box provided in this application has the same number of wiring terminals and the same number of first through holes inside the first box body.

[0019] Secondly, this application provides a firewall, wherein the firewall has sheet metal holes, the shape of which matches the shape of the first box body portion of the power distribution box penetrating the firewall as described in the first aspect.

[0020] Thirdly, this application provides a firewall-penetrating power distribution system, which includes: a firewall as described in the second aspect, a firewall-penetrating power distribution box as described in the first aspect, a first cable, and a second cable.

[0021] The aforementioned firewall-penetrating power distribution box, firewall, and firewall-penetrating power distribution system, wherein the firewall-penetrating power distribution box includes: a box body and a wiring structure, the box body includes a first box body portion and a second box body portion, wherein: the first box body portion is disposed through the firewall, and a first side of the first box body portion has a first wiring hole for a first cable to pass through the first wiring hole and connect to the wiring structure; the second box body portion is fixedly disposed on the firewall, and a second side of the second box body portion has a second wiring hole for a second cable to pass through the second wiring hole and connect to the wiring structure. In this application, when using a firewall-penetrating power distribution box to transmit power from the battery to the target electrical equipment in the front compartment, only one sheet metal hole matching the first box body needs to be opened on the firewall to accommodate multiple first cables and / or second cables passing through the wall for power supply. This effectively reduces the complexity of through-wall power distribution and improves the adaptability and flexibility of through-wall power distribution scenarios. It also eliminates the need to open multiple vias on the firewall 300, thereby reducing the impact on the performance of the firewall 300. During the through-wall power distribution process, the firewall-penetrating power distribution box acts as both a power distribution device and a via device, which can save front compartment space to the greatest extent and reduce space occupation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a power distribution box that penetrates a firewall in one embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the box in the fire-through power distribution box in one embodiment;

[0024] Figure 3 This is a schematic diagram of the wiring structure in a firewall-penetrating power distribution box in one embodiment.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Box body; 110. First box body section; 111. First wiring hole; 112. First box body cover; 113. First fastener; 114. Second fastener; 120. Second box body section; 121. Second wiring hole; 122. Second box body cover; 200. Wiring structure; 210. Terminal block; 220. Busbar; 300. Firewall; 400. First cable. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] Figure 1 A schematic diagram of a firewall-penetrating power distribution box is shown in one embodiment of this application; Figure 2 A schematic diagram of the structure of the housing 100 of the firewall distribution box in one embodiment of this application is shown. Figure 2 A schematic diagram of the wiring structure 200 of the firewall distribution box according to one embodiment of this application is shown. (See also...) Figure 1 , Figure 2 and Figure 3 An embodiment of this application provides a firewall-penetrating power distribution box, including: a box body 100 and a wiring structure 200.

[0034] The housing 100 includes a first housing portion 110 and a second housing portion 120, wherein: the first housing portion 110 is disposed through the firewall 300, and a first side of the first housing portion 110 has a first wire hole 111 for a first cable 400 to pass through the first wire hole 111 and connect to the wiring structure 200; the second housing portion 120 is fixedly disposed on the firewall 300, and a second side of the second housing portion 120 has a second wire hole 121 for a second cable to pass through the second wire hole 121 and connect to the wiring structure 200.

[0035] In one possible implementation, the battery is placed inside the cockpit, or between the front cabin firewall and the cockpit firewall, with a front cabin firewall separating the battery from the target electrical equipment in the front cabin. A first cable 400 passes through a first through-hole 111 and connects to a wiring structure 200, while its second end connects to the battery. A second cable (not shown) passes through a second through-hole 121 and connects to the wiring structure 200, while its second end connects to the target electrical equipment in the front cabin. The wiring structure 200 of the firewall distribution box, the first cable 400, and the second cable form a conductive circuit. Power from the battery is transmitted through the first cable 400 to the wiring structure 200 of the firewall distribution box, and then through the second cable to the target electrical equipment in the front cabin, thus enabling the battery to supply power to the target electrical equipment through the firewall.

[0036] Optionally, the first end of the first cable 400 passes through the first wiring hole 111 and is connected to the wiring structure 200, and the second end of the first cable 400 is connected to the target electrical equipment in the front compartment; the first end of the second cable passes through the second wiring hole 121 and is connected to the wiring structure 200, and the second end of the second cable is connected to the battery.

[0037] There can be multiple first wire-passing holes 111 and second wire-passing holes 121. The first cable 400 can pass through any one of the first wire-passing holes 111, and the second cable can pass through any one of the second wire-passing holes 121.

[0038] The firewall-penetrating power distribution box provided in this embodiment includes: a box body 100 and a wiring structure 200. The box body 100 includes a first box body portion 110 and a second box body portion 120, wherein: the first box body portion 110 is disposed through the firewall 300, and a first wire hole 111 is provided on a first side of the first box body portion 110 for a first cable 400 to pass through the first wire hole 111 and connect to the wiring structure 200; the second box body portion 120 is fixedly disposed on the firewall 300, and a second wire hole 121 is provided on a second side of the second box body portion 120 for a second cable to pass through the second wire hole 121 and connect to the wiring structure 200. In this embodiment, when power from the battery is transmitted to the target electrical equipment in the front compartment using a through-firewall power distribution box, only one sheet metal hole matching the first box body 110 needs to be opened on the firewall 300 to accommodate multiple first cables 400 and / or second cables passing through the wall for power supply. This effectively reduces the complexity of through-wall power distribution and improves the adaptability and flexibility of through-wall power distribution scenarios. It eliminates the need to open multiple vias on the firewall 300, thereby reducing the impact on the performance of the firewall 300. During the through-wall power distribution process, the through-firewall power distribution box acts as both a power distribution device and a via device, which can save front compartment space to the greatest extent and reduce space occupation.

[0039] Continue reading Figure 1 In one embodiment of this application, the firewall-penetrating power distribution box further includes: a first box cover 112, which cooperates with the first box part 110 to form a first box 100 cavity; and a second box cover 122, which cooperates with the second box part 120 to form a second box 100 cavity.

[0040] In this embodiment, the power distribution box through the firewall is set up as follows: the battery is installed in the cockpit, the second box part 120 is installed in the front compartment, the first box part 110 is installed in the cockpit, the part of the first box cover 112 near the first wiring hole 111 is located between the cockpit and the firewall 300, and the part near the second box part 120 is located in the front compartment.

[0041] In one possible implementation, the portion of the first box cover 112 near the first wire hole 111 can be independently disassembled or opened, and the portion of the first box cover 112 near the second box portion 120 can be fixedly connected to the first box portion 110.

[0042] Optionally, the portion of the first box cover 112 near the second box body 120 and the portion of the first box cover 112 near the first wire hole 111 can be independently detached or opened.

[0043] Optionally, the first box cover 112 is an indivisible unit that can be completely disassembled or opened.

[0044] The second box cover 122 can be disassembled or opened independently.

[0045] In one possible implementation, the first box cover 112 and the first box part 110 are respectively provided with corresponding through holes, and the first box cover 112 can be fixed to the first box part 110 by screws, so that the first box cover 112 and the first box part 110 cooperate to form the cavity of the first box 100.

[0046] Optionally, the first box cover 112 and the first box part 110 are pre-installed with spring pins and corresponding insertion holes, respectively. The first box cover 112 is placed on the first box part 110 so that the spring pins enter the corresponding insertion holes, thereby achieving connection.

[0047] Optionally, the first box cover 112 and the first box part 110 are respectively provided with a matching cover and a latch. The cover and latch can be locked or unlocked by pressing or pulling, thereby realizing the connection and disassembly of the first box cover 112 and the first box part 110.

[0048] Optionally, magnetic materials are provided on the first box cover 112 and the first box part 110 respectively, so that the first box cover 112 and the first box part 110 can attract each other and maintain connection when they are close to each other, so that the first box cover 112 and the first box part 110 cooperate to form the cavity of the first box 100.

[0049] In one possible implementation, the edge of the second cover 122 is provided with a notch, and the structure of the second cover portion 120 corresponds to that of the first cover 112. After the second cover 122 and the second cover portion 120 are closed, a space that is easy to hold is formed, making it easier to install the firewall distribution box onto the firewall 300.

[0050] In one possible implementation, the edge of the first box cover 112 is provided with a notch, and the structure of the first box part 110 corresponds to the first box cover 112.

[0051] In this embodiment, a first box cover 112 and a second box cover 122 are respectively provided on the first box body 110 and the second box body 120. This can prevent dust or water from entering the joint of the cable and wiring structure 200 during the use of the firewall power distribution box, keep the joint clean, thereby improving the reliability of power transmission and avoiding equipment failure or even accidents caused by poor contact.

[0052] In one embodiment of this application, the firewall-penetrating power distribution box further includes a fixing structure for fixing the second box body 120 to one side of the firewall 300.

[0053] The fixing structure fixes the second box part 120 to one side of the firewall 300, which can be achieved by having the side of the second box part 120 with a larger surface area close to the firewall 300.

[0054] In one possible implementation, one end of the fixing structure is fixedly connected to one side of the second box body 120, and a screw hole is provided in the middle of the main body of the fixing structure, so that the main body of the fixing structure and the firewall 300 are fastened together by screws.

[0055] In one possible implementation, the fixing structure includes a limiting slot disposed on the side of the second housing portion 120 that contacts the firewall 300. The limiting slot is passed through an opening at a corresponding position on the firewall 300, thereby engaging the second housing portion 120 onto the firewall 300.

[0056] In one possible implementation, see [reference] Figure 2 The fixing structure includes a first fixing member 113 and a second fixing member 114. The first fixing member 113 is the fixing structure that uses screws for fixing, and the second fixing member 114 is the fixing structure that uses a limiting bayonet for fixing.

[0057] In this embodiment, the second box body 120 is fixed to one side of the firewall 300 by a fixing structure, which can improve the stability of the firewall-penetrating power distribution box, thereby ensuring that the firewall-penetrating power distribution box can stably and reliably supply power to the target electrical equipment in the front compartment during use.

[0058] In one embodiment of this application, a sealing element is provided at the position where the first box body 110 contacts the firewall 300 in the distribution box that penetrates the firewall.

[0059] Optionally, the sealant can be an elastic material placed at the location where the first housing portion 110 contacts the firewall 300. During the installation of the through-firewall distribution box, the first housing portion 110 is pushed to a preset position, and the elastic material can fill the gap between the through-firewall distribution box and the firewall 300, thereby achieving a sealing effect.

[0060] Optionally, the sealant can also be a sealant. During the installation of the firewall distribution box, after the first box body 110 is pushed to the preset position, sealant is applied along the position where the first box body 110 contacts the firewall 300 to achieve a sealing effect.

[0061] In one possible implementation, the seal is a rubber sealing ring.

[0062] In this embodiment, by providing a sealing element at the position where the first box body 110 contacts the firewall 300, the sealing performance between the through-firewall power distribution box and the firewall 300 is improved, thereby enhancing the fireproof function of the firewall 300's stability and reducing the impact of installing the through-firewall power distribution box on the performance of the firewall 300 itself.

[0063] In one embodiment of this application, the first box body 110 and the second box body 120 are arranged in an L-shape in the fireproof power distribution box.

[0064] The first wire hole 111 is perpendicular to the first housing portion 110, and the first cable 400 is parallel to the first housing portion 110 and passes through the first wire hole 111; the second wire hole 121 is perpendicular to the second housing portion 120, and the second cable is parallel to the second housing portion 120 and passes through the second wire hole 121.

[0065] In one possible implementation, the first box body portion 110 and the second box body portion 120 are arranged perpendicularly, and the lengths of the mutually perpendicular sides of the first box body portion 110 and the second box body portion 120 are the same. The size of the first box body cover 112 is adapted to the first box body portion 110, and the size of the second box body cover 122 is adapted to the second box body portion 120, and the lengths of the mutually perpendicular sides of the first box body cover 112 and the second box body cover 122 are the same.

[0066] In this embodiment, the first box portion 110 and the second box portion 120 of the firewall-penetrating power distribution box are arranged in an L-shape. The L-shaped design can better utilize corners or limited spaces, allowing the firewall-penetrating power distribution box to be installed in narrow or corner locations, thereby saving space. Better cable layout: the first cable 400 and the second cable are also connected to the wiring structure 200 of the firewall-penetrating power distribution box perpendicularly to each other, making the wiring neater and reducing the problems that may be caused by messy and cross-wiring. The L-shaped firewall-penetrating power distribution box, together with the independently detachable or openable first box cover 112 and second box cover 122, facilitates the connection, inspection and maintenance of cables by the staff, and prevents external objects or moisture from entering the firewall-penetrating power distribution box, protecting the wiring structure 200, the first cable 400 and the second cable from damage.

[0067] Continue reading Figure 3 In one embodiment of this application, the wiring structure 200 in the firewall distribution box includes a terminal block 210 and a busbar 220, wherein: the first end of the terminal block 210 is fixedly connected to the first cable 400, and the second end of the terminal block 210 is fixedly connected to the busbar 220.

[0068] In one possible implementation, both the first and second ends of the terminal block 210 are provided with openings through which screws and wire cores can pass. The wire core of the first end of the first cable 400 and the first end of the terminal block 210 are fixedly connected by screws, and the second end of the terminal block 210 is fixedly connected to the busbar 220 by screws, so that the first cable 400, the terminal block 210 and the busbar 220 form a passage.

[0069] In one possible implementation, a conductive sheet is provided at the first end of the first cable 400. The conductive sheet is connected to the wire core of the first cable 400. By tightening a screw, the conductive sheet at the first end of the first cable 400 and the first end of the terminal 210 are fixedly connected, thereby forming a path between the first cable 400, the terminal 210, and the busbar 220. Optionally, the conductive sheet is a copper sheet.

[0070] In one possible implementation, the wiring structure 200 includes a first terminal group and a second terminal group, wherein each first terminal 210 in the first terminal group is fixedly connected to the first cable 400, each second terminal 210 in the second terminal group is fixedly connected to the second cable, the first end of the second terminal 210 is fixedly connected to the first end of the second cable, and the second end of the second terminal 210 is fixedly connected to the busbar 220.

[0071] In one possible implementation, the first terminal 210 or the second terminal 210 may further include a port into which the core of the first cable 400 or the second cable is inserted, and is secured to the busbar 220 by a clamping element, such as a screw or a clip.

[0072] In one possible implementation, the first terminal 210 or the second terminal 210 may also be a socket terminal, and the first cable 400 or the second cable is fixedly connected to the busbar 220 by inserting into the hole or slot of the socket terminal.

[0073] In this embodiment, by setting a terminal block 210 and a busbar 220, the first end of the terminal block 210 inside the first housing 110 is fixedly connected to the first cable 400, and the second end of the terminal block 210 is fixedly connected to the busbar 220. This allows the first cable 400 to be easily and quickly connected to the firewall distribution box. Through the terminal block 210, cables can be quickly connected or replaced while providing a stable electrical connection, avoiding electrical faults caused by poor or loose connections, improving the stability and reliability of the system, and eliminating the need for soldering or other complex connection operations. The terminal block 210 can adapt to cable connections of different shapes, specifications, and types, enabling it to supply power to various electrical devices and meet different connection requirements. When it is necessary to replace or repair cables, simply disconnect the terminal block without affecting other components, simplifying the maintenance process and reducing maintenance costs.

[0074] In addition, the first cable 400 is connected to the second cable on the other side of the firewall distribution box via the connection terminal 210, enabling stable and convenient electrical conduction through the firewall 300, thereby improving the availability of the firewall distribution box.

[0075] In one embodiment of this application, a firewall-penetrating power distribution box is provided, wherein a limiting partition is provided inside the first box body 110, and the limiting partition is disposed between two wiring terminals 210.

[0076] In this embodiment, the partition between the terminals 210 can effectively isolate the influence between the terminals 210 or cables, preventing interference or short circuits during installation, disassembly or use, thereby improving the safety and reliability of the electrical connection. The partition can increase the structural strength and stability of the distribution box 100 through the firewall, and make maintenance and repair more convenient. When maintenance is required on a certain terminal 210 or cable, only the corresponding partition can be removed without affecting the normal operation of other circuits, which can simplify the maintenance process and improve work efficiency.

[0077] In one embodiment of this application, in the firewall-penetrating power distribution box, the number of wiring terminals 210 inside the first box body 110 of the wiring structure 200 is the same as the number of first through holes 111.

[0078] Each terminal block 210 is correspondingly provided with a through hole, so that the first cable 400 or the second cable can be smoothly connected to the terminal block 210 by passing through the through hole, which simplifies the wiring structure 200 of the firewall distribution box.

[0079] In one embodiment of this application, a firewall-penetrating power distribution box includes a box body 100 and a wiring structure 200. The box body 100 includes a first box body portion 110 and a second box body portion 120. The first box body portion 110 is disposed in the firewall 300. A first wire hole 111 is provided on a first side of the first box body portion 110. The first wire hole 111 is used for a first cable 400 to pass through the first wire hole 111 and connect to the wiring structure 200. The second box body portion 120 is fixedly disposed on the firewall 300. A second wire hole 121 is provided on a second side of the second box body portion 120. The second wire hole 121 is used for a second cable to pass through the second wire hole 121 and connect to the wiring structure 200.

[0080] The first box cover 112, which cooperates with the first box part 110 to form the cavity of the first box 100; the second box cover 122, which cooperates with the second box part 120 to form the cavity of the second box 100.

[0081] A fixing structure is used to fix the second box body 120 to one side of the firewall 300.

[0082] The fixing structure includes a first fixing member 113 and a second fixing member 114. The first fixing member 113 is disposed on one side of the second housing part 120, and the second fixing member 114 is disposed on the side of the second housing part 120 that contacts the firewall 300.

[0083] A seal is provided at the position where the first box body 110 contacts the firewall 300.

[0084] The first housing portion 110 and the second housing portion 120 are arranged in an L-shape. The first housing portion 110 is arranged perpendicular to the firewall 300, and the second housing portion 120 is arranged parallel to the firewall 300, with the bottom surface of the second housing portion 120 attached to one side of the firewall 300.

[0085] The wiring structure 200 includes a terminal block 210 and a busbar 220, wherein: the first end of the terminal block 210 near the first housing part 110 is fixedly connected to the first cable 400, and the second end of the terminal block 210 near the first housing part 110 is fixedly connected to the busbar 220; the terminal block 210 near the second housing part 120 directly fixes the busbar 220 to the second cable.

[0086] The first housing 110 is provided with a limiting partition, which is located between two terminals 210.

[0087] The number of terminals 210 inside the first housing portion 110 of the wiring structure 200 is the same as the number of first through holes 111; the number of terminals 210 inside the second housing portion 120 is the same as the number of second through holes 121.

[0088] One embodiment of this application provides a firewall with sheet metal holes, the shape of which matches the shape of the first box body of the power distribution box penetrating the firewall as described in the above embodiment.

[0089] One embodiment of this application provides a firewall-penetrating power distribution system, which includes: a firewall as described in the above embodiment, a firewall-penetrating power distribution box as described in the above embodiment, a first cable, and a second cable.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A power distribution box that penetrates a firewall, characterized in that, The fire-resistant power distribution box includes: a box body and a wiring structure, wherein the box body includes a first box body section and a second box body section, wherein: The first housing portion passes through the firewall, and the first side of the first housing portion has a first wire hole. The first wire hole is used for the first cable to pass through the first wire hole and connect to the wiring structure. The second housing is fixedly mounted on the firewall. The second side of the second housing has a second through hole for the second cable to pass through and connect to the wiring structure. The firewall is located between the battery and the target electrical equipment in the front compartment, and the battery is located in the cockpit. The wiring structure, the first cable and the second cable form a conductive circuit. The power in the battery is transmitted to the wiring structure through the first cable, and the wiring structure transmits the power to the target electrical equipment through the second cable, so as to realize the battery's through-wall power supply to the target electrical equipment.

2. The firewall-penetrating power distribution box according to claim 1, characterized in that, The firewall-penetrating power distribution box also includes: The first box cover, which mates with the first box body portion to form a first box cavity; The second box cover, together with the second box body, forms the second box cavity.

3. The firewall-penetrating power distribution box according to claim 1, characterized in that, The firewall-penetrating power distribution box further includes a fixing structure for fixing the second box body to one side of the firewall.

4. The firewall-penetrating power distribution box according to claim 1, characterized in that, A seal is provided at the position where the first housing part contacts the firewall.

5. The firewall-penetrating power distribution box according to claim 1, characterized in that, The first box section and the second box section are arranged in an L-shape.

6. The firewall-penetrating power distribution box according to claim 1, characterized in that, The wiring structure includes terminals and busbars, wherein: The wiring structure has a first end of the wiring terminal inside the first housing part that is fixedly connected to the first cable, and a second end of the wiring terminal that is fixedly connected to the bus bar.

7. The firewall-penetrating power distribution box according to claim 6, characterized in that, The first housing is provided with a limiting partition, which is disposed between the two terminals.

8. The firewall-penetrating power distribution box according to claim 6, characterized in that, The number of wiring terminals inside the first housing part of the wiring structure is the same as the number of the first through holes.

9. A firewall, characterized in that, The firewall has sheet metal holes, the shape of which matches the shape of the first box body of the power distribution box penetrating the firewall as described in any one of claims 1-8.

10. A power distribution system penetrating a firewall, characterized in that, The firewall-penetrating power distribution system includes: the firewall as described in claim 9, the firewall-penetrating power distribution box as described in any one of claims 1-8, the first cable, and the second cable.

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