Insulating seat and high-voltage distribution box

Abstract

The utility model relates to an insulating seat and a high-voltage distribution box, the insulating seat comprises a seat body, a limiting part and a stopping part, and the seat body is provided with a mounting surface and a locking hole penetrating through the mounting surface. The limiting part is arranged on the mounting surface and forms a plurality of first limiting grooves which are sequentially arranged along the first direction and are used for mounting fuses; the stopping part is arranged on the mounting surface, and the stopping part and the limiting part are arranged in a spaced mode in the second direction intersecting with the first direction so as to jointly form a second limiting groove extending in the first direction. The second limiting grooves are used for installing conducting bars and are communicated with all the first limiting grooves. And the locking holes are used for installing locking pieces for locking the conducting bar and the fuse on the seat body. According to the technical scheme, the fuse and the conducting bar can be positioned through the first limiting groove and the second limiting groove respectively, and the fuse and the conducting bar are convenient to install. A plurality of fuses are centrally arranged in the same area of the high-voltage distribution box, so that installation and maintenance by workers are facilitated, and the layout is more reasonable.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage distribution boxes, and particularly to an insulating seat and a high-voltage distribution box. Background Art

[0002] As an energy storage unit of an electric vehicle, a power battery plays an important role in providing power for various electrical components of the whole vehicle. Due to the high voltage and large power of the power battery, it has a certain degree of danger. To ensure the safe operation of the electric vehicle, a high-voltage distribution box (Power Distribution Unit, PDU) is usually equipped for the power battery to control the charging and discharging rhythm and avoid risks such as overload and short circuit.

[0003] Multiple fuses are usually arranged in the high-voltage distribution box to protect multiple loads. How to simplify the installation and maintenance of multiple fuses in the high-voltage distribution box and make the layout of internal electrical components in the high-voltage distribution box more reasonable is a problem worthy of consideration by those skilled in the art. Summary of the Utility Model

[0004] Based on this, in order to simplify the installation and maintenance of multiple fuses in the high-voltage distribution box and make the internal layout of the high-voltage cooperation box more reasonable, an insulating seat and a high-voltage distribution box are provided.

[0005] In a first aspect, the present application provides an insulating seat, including:

[0006] A seat body having an installation surface and a locking hole penetrating the installation surface;

[0007] A limiting portion provided on the installation surface and forming a plurality of first limiting grooves for installing fuses arranged in sequence along a first direction;

[0008] A stop portion provided on the installation surface and spaced from the limiting portion in a second direction intersecting the first direction to jointly form a second limiting groove extending along the first direction, and the second limiting groove is used for installing a conductive bar and communicating with all the first limiting grooves;

[0009] The locking hole is used for installing a locking member for locking the conductive bar and the fuse to the seat body.

[0010] In some embodiments, the limiting portion includes a partition plate provided on the installation surface, and the plurality of partition plates are sequentially spaced along the first direction and partition a plurality of the first limiting grooves on the installation surface.

[0011] In some embodiments, the limiting portion also includes a first protrusion and / or a second protrusion; the first protrusion is arranged in the first limiting groove, and is used to limit the displacement of the fuse in the first direction; the second protrusion is arranged in the first limiting groove, and is located at one end of the first limiting groove away from the second limiting groove, and is used to limit the displacement of the wiring harness connecting the fuse in the first direction.

[0012] In some embodiments, a wire harness fixing portion is provided at one end of the seat body in the second direction, and the wire harness fixing portion is used to fix the wire harness.

[0013] In some embodiments, a wiring groove for wiring harness routing is recessed at one end of the seat body away from the mounting surface, and the wiring groove runs through opposite ends of the seat body in the second direction; reinforcing ribs are provided on the seat body, and the reinforcing ribs are located in the wiring groove.

[0014] In some embodiments, a fixing hole is provided on the seat body, and the fixing hole is used to install a locking member that locks the seat body to an external structure; a mounting groove is recessed on the mounting surface, and the fixing hole is provided at the bottom of the mounting groove.

[0015] In some embodiments, a fool-proof mounting portion is provided at the bottom of the seat body, and the seat body is positioned and mounted on the external structure via the fool-proof mounting portion.

[0016] In some embodiments, an exhaust hole is provided at the bottom of the locking hole, and the exhaust hole is provided through the seat body along the height direction of the seat body.

[0017] In a second aspect, the present application provides a high-voltage distribution box, comprising:

[0018] Box;

[0019] The insulating seat as described in any of the above embodiments is located in the box;

[0020] An electrical component, located in the box, includes a plurality of first fuses, each of the first limiting grooves being equipped with the first fuse;

[0021] An electrical connector, comprising a conductive bar, a portion of which is mounted in the second limiting groove, a portion of which extends into the second limiting groove and is pressed on the conductive bar in the second limiting groove; and

[0022] A locking member is installed in the locking hole and locks the first fuse and the conductive bar to the base.

[0023] In some embodiments, the high-voltage distribution box includes a connector disposed on the outer wall of the box body;

[0024] The connector includes a battery connector and a plurality of load connectors, and the electrical component also includes a second fuse, a main positive relay, a main negative relay and a Hall sensor;

[0025] The positive terminal of the battery connector, the second fuse, the main positive relay and the positive terminal of the load connector are electrically connected in sequence via the electrical connector to form a first circuit, and the first fuse is connected in series between at least part of the load connector and the main positive relay;

[0026] The negative terminal of the battery connector, the Hall sensor, the main negative relay, and the negative terminal of the load connector are electrically connected in sequence via the electrical connector to form a second circuit, and each load connector is connected in parallel to the main negative relay.

[0027] In some embodiments, the electrical connector includes a first high voltage wire harness group and a second high voltage wire harness group;

[0028] One end of the first high-voltage wire harness is connected to the positive terminal of the load connector, and the other end is connected to an end of the first fuse away from the second limiting groove;

[0029] One end of the second high-voltage wire harness group is connected to the negative terminal of the load connector, and the other end is connected to the main negative relay;

[0030] The multiple load connectors are arranged at the first end of the box in the second direction, the main negative relay is arranged on the side of the insulating seat away from the first end, and the second high-voltage wire harness group passes through the wiring groove at the bottom of the insulating seat and is located below the first high-voltage wire harness group.

[0031] In some embodiments, the connector further includes a charging connector, and the electrical component further includes a fast-charge positive relay, a fast-charge negative relay, a pre-charge relay, and a pre-charge resistor;

[0032] The pre-charging relay and the pre-charging resistor are connected in series and are electrically connected to two connection ends of the main positive relay located in the first circuit respectively;

[0033] One end of the fast charge positive relay is connected to the positive terminal of the charging connector, and the other end is connected to the connection end of the main positive relay on the first circuit away from the battery connector;

[0034] One end of the fast charge negative relay is connected to the negative terminal of the charging connector, and the other end is connected to the connection end of the main negative relay arranged away from the battery connector on the second circuit.

[0035] In some embodiments, the battery connector is arranged at the second end of the box body in the first direction. The second fuse, the main positive relay, the insulating seat, and the fast charging negative relay are arranged side by side in the first direction to form a first row of electrical components, and the second fuse is arranged close to the battery connector.

[0036] The pre-charge relay, the Hall sensor, the main negative relay, and the fast charging positive relay are arranged side by side in the first direction to form a second row of electrical components, and are located on one side of the insulating seat in the second direction.

[0037] The pre-charge resistor is arranged between the second fuse and the pre-charge relay in the second direction.

[0038] In some embodiments, the high-voltage power distribution box further includes a battery manager arranged inside the box body, and the battery manager is arranged above all the electrical components.

[0039] In some embodiments, the electrical connector includes a low-voltage acquisition wire harness and / or a low-voltage interlock wire harness arranged below the battery manager and electrically connected to the battery manager. The low-voltage acquisition wire harness is used to acquire the working state information of at least part of the electrical components, and is located between the first row of electrical components and the second row of electrical components, and passes through the wire harness fixing part of the insulating seat. The low-voltage interlock wire harness has a first interlock terminal, and at least part of the connectors have a second interlock terminal, and the second interlock terminal is plugged into the first interlock terminal. The low-voltage interlock wire harness is arranged along the inner wall of the box body.

[0040] In some embodiments, the connector further includes a communication connector, the electrical connector includes a low-voltage communication wire harness, and the battery manager is connected to the communication connector via the low-voltage communication wire harness.

[0041] Compared with the prior art, the present application has the following beneficial effects:

[0042] When the above-mentioned insulating seat and high-voltage electrical box are actually applied, the fuse and the conductive bar can be positioned through the first limiting groove and the second limiting groove respectively, and then the locking piece is installed through the locking hole to fix the fuse and the conductive bar on the seat body. The installation of the fuse and the conductive bar is convenient. Moreover, multiple fuses are centrally installed on the same insulating seat, so that multiple fuses are centrally arranged in the same area of the high-voltage power distribution box, which is convenient for the staff to install and maintain the fuses, and makes the layout of the internal electrical components of the high-voltage power distribution box more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Upon reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to denote the same components. In the drawings:

[0044] Figure 1 Side view schematic diagram of the insulating base for some embodiments.

[0045] Figure 2 is Figure 1 Top view schematic diagram of the insulating base shown.

[0046] Figure 3 is Figure 1 Bottom view schematic diagram of the insulating base described.

[0047] Figure 4 External shape schematic diagram of the high-voltage power distribution box for some embodiments.

[0048] Figure 5 Internal structure schematic diagram of the high-voltage power distribution box for some embodiments.

[0049] Figure 6 is Figure 5 Partial schematic diagram of the high-voltage power distribution box shown.

[0050] Figure 7 is Figure 5 Electrical component layout schematic diagram of the high-voltage power distribution box shown.

[0051] Figure 8 is Figure 5 Another orientation schematic diagram of the high-voltage power distribution box shown.

[0052] Figure 9 Internal structure schematic diagram of the high-voltage power distribution box for some other embodiments.

[0053] The reference numerals in the specific embodiments are as follows:

[0054] 1000, high-voltage power distribution box;

[0055] 100, insulating base; X, first direction; Y, second direction; Z, height direction;

[0056] 10, seat body; M, mounting surface; 11, locking hole; 12, wire harness fixing part; 13, wiring groove; 14, reinforcing rib; 15, fixing hole; 16, mounting groove; 17, anti-misassembly mounting part; 18, exhaust hole;

[0057] 20, limiting part; X1, first limiting groove; 21, partition board; 22, first protrusion; 23, second protrusion;

[0058] 30. Stop portion; X2. Second limiting groove;

[0059] 200. Electrical component; 201. First fuse; 202. Second fuse; 203. Main positive relay; 204. Main negative relay; 205. Hall sensor; 206. Fast charging positive relay; 207. Fast charging negative relay; 208. Pre-charging relay; 209. Pre-charge resistor; 200A. First row of electrical components; 200B. Second row of electrical components;

[0060] 300. Electrical connection component; 301. Conductive bar; 302. First high-voltage wire harness group; 303. Second high-voltage wire harness group; 304. Low-voltage acquisition wire harness; 305. Low-voltage interlock wire harness; S1. First interlock terminal; 306. Low-voltage communication wire harness;

[0061] 400. Locking component;

[0062] 500. Box body; D1. First end; D2. Second end; 501. First mounting plate; 502. Second mounting plate;

[0063] 600. Connector; 601. Battery connector; 602. Load connector; S2. Second interlock terminal; 603. Charging connector; 604. Communication connector;

[0064] 700. Battery manager. Detailed implementation manners

[0065] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0066] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0067] In addition, if present, 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 quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0068] In this application, unless otherwise clearly specified and defined, if present, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] In this application, if present, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0070] It should be noted that if present, when an element is referred to as "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0071] In response to the problems mentioned in the background art, an insulation seat is first proposed in an embodiment of this application.

[0072] Refer to Figure 1 and Figure 2, the insulating base 100 provided by the embodiments of the present application includes a base body 10, a limiting portion 20, and a stopping portion 30. The base body 10 has a mounting surface M and a locking hole 11 penetrating the mounting surface M. The limiting portion 20 is provided on the mounting surface M and forms a plurality of first limiting grooves X1 for mounting fuses arranged in sequence along the first direction X. The stopping portion 30 is provided on the mounting surface M and is spaced from the limiting portion 20 in a second direction Y intersecting the first direction X to jointly form a second limiting groove X2 extending along the first direction X. The second limiting groove X2 is used for mounting a bus bar 301 and is communicated with all the first limiting grooves X1. The locking hole 11 is used for mounting a locking member 400 that locks the bus bar 301 and the fuse to the base body 10.

[0073] The insulating base 100 has insulating properties. Optionally, the insulating base 100 is integrally formed by an insulating plastic through an injection molding process. The base body 10, the limiting portion 20, and the stopping portion 30 can be integrally formed or separately provided. The insulating base 100 can be entirely formed of an insulating material, or an insulating coating can be sprayed only on the surface of the insulating base 100.

[0074] In the actual application state, the mounting surface M is one end surface of the base body 10 in the height direction Z. The first direction X and the second direction Y are two substantially perpendicular horizontal directions. One end of the locking hole 11 penetrates the mounting surface M, and it is not limited whether the other end penetrates the base body 10. An insert nut can be provided in the locking hole 11, and a locking member 400 such as a bolt is installed through the threaded hole formed by the insert nut. Of course, the locking hole 11 can also be a smooth hole, and the locking member 400 can be a plug inserted into the locking hole 11. Regarding the cooperation mode between the locking hole 11 and the locking member 400, those skilled in the art can make conventional settings.

[0075] The limiting portion 20 itself can form a plurality of first limiting grooves X1, or can jointly form a plurality of first limiting grooves X1 with the mounting surface M. The first limiting grooves X1 extend along the second direction Y and are arranged side by side in the first direction X. Usually, one fuse is installed in each first limiting groove X1.

[0076] The second limiting groove X2 is formed by the spacing between the stopping portion 30 and the limiting portion 20. The stopping portion 30 can include a stop plate extending along the first direction X. The second limiting groove X2 extends along the first direction X, and both ends of it in the extending direction can be open, or both can be closed, or one end is open and the other end is closed. Specifically, it can be designed according to actual needs as long as it is convenient to install the bus bar 301.

[0077] The second limiting groove X2 is located on the same side of all the first limiting grooves X1 in the second direction Y and communicates with all the first limiting grooves X1. The fuse has a first connection end and a second connection end arranged opposite to each other. In practical applications, after installing the busbar 301 in the second limiting groove X2, a fuse is installed in each first limiting groove X1. Since the second limiting groove X2 communicates with the first limiting groove X1, the first connection end of each fuse can extend into the second limiting groove X2 and be pressed on the busbar 301 to be electrically connected to the busbar 301, so that each fuse is connected in parallel to the busbar 301.

[0078] Generally, one end of each first limiting groove X1 facing away from the second limiting groove X2 is an open end. The second connection end of the fuse can pass through the open end to be electrically connected to other electrical components 200 through a wire harness or the like; alternatively, the wire harness passes through the open end and extends into the first limiting groove X1 to be electrically connected to the second connection end of the fuse.

[0079] Generally, connection holes are correspondingly arranged on the fuse and the busbar 301. The locking member 400 passes through the connection hole and the locking hole 11 to fix and lock the fuse and the busbar 301 on the seat body 10, preventing the fuse and the busbar 301 from shifting and reducing electrical safety.

[0080] When the above-mentioned insulating seat 100 is applied to a high-voltage electrical box, the fuse and the busbar 301 can be positioned through the first limiting groove X1 and the second limiting groove X2 respectively, and then the locking member 400 is installed through the locking hole 11 to fix the fuse and the busbar 301 on the seat body 10. The installation of the fuse and the busbar 301 is convenient. Moreover, multiple fuses are centrally installed on the same insulating seat 100, so that multiple fuses are centrally arranged in the same area of the high-voltage distribution box 1000, which is convenient for the staff to install and maintain the fuses and makes the layout of the internal electrical components of the high-voltage distribution box 1000 more reasonable.

[0081] In some embodiments, referring to Figure 1 and Figure 2 , the limiting part 20 includes a partition plate 21 arranged on the installation surface M. A plurality of partition plates 21 are arranged at intervals in sequence along the first direction X and form a plurality of first limiting grooves X1 on the installation surface M by partitioning.

[0082] That is, a plurality of partition plates 21 are arranged on the installation surface M, and the first limiting groove X1 is jointly formed by the interval space between the partition plates 21 and the installation surface M. The forming of the first limiting groove X1 is simple and convenient.

[0083] Specifically, each partition plate 21 extends continuously in the second direction Y, or each partition plate 21 includes a plurality of partition segments arranged at intervals in the second direction Y. The partition plate 21 can be separately arranged on the installation surface M by means of bonding, fastening connection, etc., or can be integrally formed with the installation surface M.

[0084] Moving further to the embodiments, continue to refer to Figure 1 and Figure 2 , the limiting part 20 further includes a first protrusion 22 and / or a second protrusion 23. The first protrusion 22 is arranged in the first limiting groove X1 and is used to limit the displacement of the fuse in the first direction X. The second protrusion 23 is arranged in the first limiting groove X1 and is located at one end of the first limiting groove X1 away from the second limiting groove X2, and is used to limit the displacement of the wire harness connected to the fuse in the first direction X.

[0085] Specifically, at least one group of first protrusions 22 can be symmetrically arranged in each first limiting groove X1 along a plane parallel to the second direction Y. When the fuse is installed in the first limiting groove X1, the two symmetric first protrusions 22 can abut against the opposite sides of the fuse. Specifically, in each first limiting groove X1, a limiting notch is formed at an interval between the second protrusion 23 and the opposite partition plate 21 in the first direction X, and the wire harness connected to the second connection end of the fuse passes through the limiting notch.

[0086] At this time, the first protrusion 22 is arranged in the first limiting groove X1 to limit the displacement of the fuse in the first direction X, improve the positioning reliability of the fuse, and facilitate the subsequent locking of the fuse. The second protrusion 23 is arranged in the first limiting groove X1, and the position of the wire harness connected to the fuse is limited by the second protrusion 23 to prevent the wire harness from flipping, which is more convenient for wire routing.

[0087] In some embodiments, refer to Figure 3 , a wire harness fixing part 12 is arranged at one end of the seat body 10 in the second direction Y, and the wire harness fixing part 12 is used to fix the wire harness.

[0088] Specifically, the wire harness fixing part 12 can be a wire harness fixing hole, a wire harness fixing buckle, etc. When the insulating seat 100 is applied to the high-voltage distribution box 1000, the wire harness fixing part 12 can be used to pass through and fix the wire harness, which is convenient for wire routing of the wire harness.

[0089] In some embodiments, refer to Figure 1 and Figure 3 , a wire routing groove 13 for wire harness routing is recessed at one end of the seat body 10 away from the mounting surface M, and the wire routing groove 13 penetrates through the opposite ends of the seat body 10 in the second direction Y.

[0090] In actual application, part of the wire harness in the high-voltage distribution box 1000 can be routed under the insulating seat 100 through the wire routing groove 13, so that the wire harness layout is more flexible, and the wire routing space in the high-voltage distribution box 1000 can be saved. Moreover, the setting of the wire routing groove 13 can reduce the consumables of the seat body 10 and reduce the cost.

[0091] In some embodiments, refer to Figure 3 , a reinforcing rib 14 is arranged on the seat body 10, and the reinforcing rib 14 is located in the wire routing groove 13.

[0092] The provision of the reinforcing rib 14 can enhance the structural strength of the insulating base 100. Regarding the layout of the reinforcing rib 14, those skilled in the art can design it flexibly. Understandably, the reinforcing rib 14 is provided on the inner wall of the wire groove 13 while allowing the wire groove 13 to route wires. The reinforcing rib 14 and the base body 10 can be integrally injection-molded.

[0093] In some embodiments, referring to Figure 1 and Figure 2 , a fixing hole 15 is provided on the base body 10, and the fixing hole 15 is used to install a locking member 400 for locking the base body 10 to an external structure.

[0094] In actual application, the external structure can be the box body 500 of the high-voltage distribution box 1000. By installing the locking member 400 at the fixing hole 15, the base body 10 is locked on the box body 500 to ensure the installation reliability of the insulating base 100. Understandably, a connection hole matching the fixing hole 15 is provided on the external structure, and the locking member 400 passes through the fixing hole 15 and connects to the connection hole. The fixing hole 15 can be a smooth through-hole, or can be provided with threads on its inner wall, etc.

[0095] Specifically in the embodiment, referring to Figure 1 and Figure 2 , an installation groove 16 is recessed on the installation surface M, and the fixing hole 15 is provided at the bottom of the installation groove 16.

[0096] Understandably, one end of the fixing hole 15 penetrates through the bottom of the installation groove 16, and the other end penetrates through the base body 10 for the locking member 400 to pass through. The design of the installation groove 16 can accommodate the locking member 400 to prevent the locking member 400 from protruding and affecting the installation of the fuse and the conductive bar 301. Moreover, the installation groove 16 can shorten the depth of the fixing hole, and thus shorten the length of the locking member 400, which can reduce the cost of the locking member 400.

[0097] In some embodiments, referring to 1 and Figure 3 , an anti-false installation portion 17 is provided at the bottom of the base body 10, and the base body 10 is positioned and installed on the external structure via the anti-false installation portion 17.

[0098] Specifically, the anti-false installation portion 17 can be a first concave-convex portion protruding from the bottom of the base body 10, and the external structure is correspondingly provided with a second concave-convex portion matching the first concave-convex portion. In this way, the anti-false installation portion 17 is engaged with the external structure in a concave-convex manner to achieve the anti-false installation of the insulating base 100. The first concave-convex portion can be a convex column, a concave hole, etc. Specifically, the anti-false installation portion 17 is arranged at one end of the bottom of the base body 10 in the second direction Y.

[0099] At this time, through the design of the anti-fooling installation part 17, the anti-fooling installation of the insulating seat 100 in the high-voltage distribution box 1000 can be realized, preventing the insulating seat 100 from being installed reversely or wrongly, and improving the assembly efficiency of the insulating seat 100 in the high-voltage distribution box 1000.

[0100] In some embodiments, referring to Figure 2 and Figure 3 , an exhaust hole 18 is provided at the bottom of the locking hole 11, and the exhaust hole 18 penetrates through the seat body 10 along the height direction Z of the seat body 10.

[0101] Preferably, a plurality of exhaust holes 18 are provided corresponding to each locking hole 11. In actual application, the insulating seat 100 can be integrally formed by injection molding, and a nut is embedded at the locking hole 11. The exhaust hole 18 is provided for discharging the gas generated during injection molding at the position of the locking hole 11, preventing defects such as glue overflow and shrinkage holes at this position.

[0102] In a specific embodiment of the present application, the insulating seat 100 includes a seat body 10, a partition plate 21, a first protrusion 22, a second protrusion 23 and a stop portion 30. A plurality of partition plates 21 form a plurality of first limiting grooves X1 at intervals along the first direction X on the installation surface M of the seat body 10. The stop portion 30 and all the partition plates 21 form a second limiting groove X2 at intervals along the second direction Y on the installation surface M. A first convex body and a second protrusion 23 are arranged in each first limiting groove X1. Locking holes 11 are provided at the bottom of the groove of the first limiting groove X1 and the bottom of the groove of the second limiting groove X2. A wiring groove 13 and an anti-fooling installation part 17 are formed at the bottom of the seat body 10. An installation groove 16 and a fixing hole 15 penetrating through the bottom of the installation groove 16 are provided on the seat body 10. A wire fixing hole is provided at one end of the seat body 10 in the second direction Y.

[0103] In addition, referring to Figure 4 , Figure 5 and Figure 6 , the embodiment of the present application further provides a high-voltage distribution box 1000, including a box body 500, the insulating seat 100 as described in any of the above embodiments, an electrical component 200, an electrical connection component 300 and a locking component 400. The insulating seat 100 and the electrical component 200 are both located in the box body 500. The electrical component 200 includes a plurality of first fuses 201, and each first fuse 201 is installed in a first limiting groove X1. The electrical connection component 300 includes a conductive bar 301, and part of the conductive bar 301 is installed in the second limiting groove X2. Part of the first fuse 201 extends into the second limiting groove X2 and is pressed on the conductive bar 301 in the second limiting groove X2. The locking component 400 is installed in the locking hole 11 and locks the first fuse 201 and the conductive bar 301 to the seat body 10.

[0104] The housing 500 generally includes a lower housing and a cover. The lower housing forms the accommodation space of the housing 500, and the cover is hermetically closed on the lower housing. Both the insulating base 100 and the electrical component 200 are located inside the lower housing. Optionally, as Figure 7 shown, a first mounting plate 501 is provided at the bottom of the lower housing. The first mounting plate 501 is used to mount the electrical component 200 and the insulating base 100. The first mounting plate 501 generally adopts an insulating plate to electrically isolate the electrical component 200 and the housing 500.

[0105] The electrical component 200 is a device that can be connected to a circuit and realize its own functions, such as a fuse for realizing circuit protection, a relay for circuit interruption and conduction, as well as resistors, sensors, etc. The electrical connector 300 refers to a component that can realize the electrical connection between electrical components 200, such as a busbar 301, a wire harness, etc. A fuse is a protection device that melts the fuse wire by the heat generated by itself after the current exceeds the specified value for a period of time, thereby disconnecting the circuit. The busbar 301 is made of a conductive material and can be a copper bar, an aluminum bar, etc., and is used to realize circuit connection. The locking member 400 can be a locking bolt, a locking pin, etc., and the specific structure is not limited.

[0106] In actual application, the insulating base 100 is installed in the housing 500, the busbar 301 is installed in the second limiting groove X2, and the first fuse 201 is installed in the first limiting groove X1. The first connection ends of the first fuses 201 extend into the second limiting groove X2 and are pressed on the busbar 301, and are connected in parallel with other electrical components 200 through the busbar 301. Finally, the busbar 301 and the first fuse 201 are locked on the insulating base 100 through the locking member 400. The installation of the fuse and the busbar 301 is convenient. Moreover, multiple fuses are centrally installed on the same insulating base 100, so that multiple fuses are centrally arranged in the same area of the high-voltage distribution box 1000, which is convenient for the staff to install and maintain the fuses and makes the layout of the internal electrical components of the high-voltage distribution box 1000 more reasonable.

[0107] In addition, the high-voltage distribution box 1000 also has other beneficial effects in the above embodiments.

[0108] In some embodiments, referring to Figure 5 and Figure 7, the high-voltage distribution box 1000 includes a connector 600 provided on the outer wall of the box body 500. The connector 600 includes a battery connector 601 and a plurality of load connectors 602. The electrical component 200 further includes a second fuse 202, a main positive relay 203, a main negative relay 204, and a Hall sensor 205. The positive terminal of the battery connector 601, the second fuse 202, the main positive relay 203, and the positive terminals of the load connectors 602 are sequentially electrically connected via an electrical connector 300 to form a first circuit, and a first fuse 201 is connected in series between at least some of the load connectors 602 and the main positive relay 203. The negative terminal of the battery connector 601, the Hall sensor 205, the main negative relay 204, and the negative terminals of the load connectors 602 are sequentially electrically connected via an electrical connector 300 to form a second circuit, and each load connector 602 is connected in parallel to the main negative relay 204.

[0109] The connector 600 is a device for plugging in an external electrical connection structure. The battery connector 601 is used to connect the power battery and can realize the output of the power of the power battery to supply power to the load connector 602. The load connector 602 includes, but is not limited to, a load system that needs to be powered by the power battery. The load system includes, but is not limited to, an air-conditioning system, a lighting system, an ignition system, an electronic control system, a power system, etc. on a power vehicle. Those skilled in the art can make an adaptive selection and design according to the type of the load system connected by the load connector 602, and specific details are not limited here. In addition, for the structures and working principles of the electrical components 200 such as each fuse, each relay, and the Hall sensor 205 mentioned in the embodiments of the present application, please refer to common knowledge and will not be elaborated here.

[0110] The positive terminal and the negative terminal of the battery connector 601 are respectively used to connect the positive connection end and the negative connection end of the power battery. The positive terminal of the battery connector 601, the second fuse 202, the main positive relay 203, and the positive terminals of the load connectors 602 can be sequentially connected via an electrical connector 300 such as a busbar 301 to form a first circuit. A first fuse 201 is connected between the main positive relay 203 and each load connector 602 to protect each load connector 602 by using the first fuse 201. The first circuit can be controlled to be turned on and off through the main positive relay 203.

[0111] Specifically, the first connection end of each first fuse 201 is connected to the main positive relay 203 through a busbar 301 located in the second limiting groove X2, and the second connection end of each first fuse 201 is electrically connected to the corresponding load connector 602 through a wire harness. Of course, only some of the load connectors 602 can be connected with the first fuse 201 between them and the main positive relay 203.

[0112] The negative terminal of the battery connector 601, the Hall sensor 205, the main negative relay 204, and the negative terminal of the load connector 602 are connected in sequence via the conductive bar 301 and other electrical connectors 300 to form a second circuit. The first circuit and the second circuit constitute a power-on circuit for the power battery to supply power to each load connector 602. The main negative relay 204 can control the on and off of the second circuit, and the Hall sensor 205 can detect the current size of the second circuit. Each load connector 602 and the main negative relay 204 can be connected in parallel through a wiring harness.

[0113] In a further embodiment, referring to Figure 6 The electrical connector 300 includes a first high-voltage wire harness group 302 and a second high-voltage wire harness group 303. One end of the first high-voltage wire harness group 302 is connected to the positive terminal of the load connector 602, and the other end is connected to the end of the first fuse 201 away from the second limiting groove X2. One end of the second high-voltage wire harness group 303 is connected to the negative terminal of the load connector 602, and the other end is connected to the main negative relay 204. A plurality of load connectors 602 are arranged at the first end D1 of the box body 500 in the second direction Y, and the main negative relay 204 is arranged on the side of the insulating seat 100 away from the first end D1. The second high-voltage wire harness group 303 passes through the wiring groove 13 at the bottom of the insulating seat 100 and is located below the first high-voltage wire harness group 302.

[0114] It can be understood that the first high-voltage wire harness group 302 includes multiple wire harnesses, each of which is arranged in parallel to respectively connect a first fuse 201 and a positive terminal of a load connector 602. The second high-voltage wire harness group 303 includes multiple wire harnesses, one end of which can be simultaneously connected to the main negative relay 204 through a conductive bar 301, and the other end can be respectively connected to the negative terminal of each load connector 602.

[0115] At this time, the high-voltage harness group is easier to realize parallel connection between the electrical components 200, and it is also convenient for layout. In addition, the first high-voltage harness group 302 and the second high-voltage harness group 303 are routed up and down, and the second high-voltage harness group 303 is routed using the routing groove 13 at the bottom of the insulating seat 100, which can reduce the risk of electrical accidents caused by entanglement of the two high-voltage harness groups and too close distance, and the routing is safer and simpler.

[0116] In some embodiments, reference Figure 5 and Figure 7, the connector 600 further includes a charging connector 603, and the electrical component 200 further includes a fast charging positive relay 206, a fast charging negative relay 207, a pre-charge relay 208, and a pre-charge resistor 209. The pre-charge relay 208 and the pre-charge resistor 209 are connected in series and are respectively electrically connected to two connection ends of the main positive relay 203 in the first circuit. One end of the fast charging positive relay 206 is connected to the positive terminal of the charging connector 603, and the other end is connected to the connection end of the main positive relay 203 on the first circuit that is arranged away from the battery connector 601. One end of the fast charging negative relay 207 is connected to the negative terminal of the charging connector 603, and the other end is connected to the connection end of the main negative relay 204 on the second circuit that is arranged away from the battery connector 601.

[0117] The charging connector 603 is used to connect to an external power source so that the external power source can charge the power battery through the charging connector 603 and the battery connector 601. The pre-charge relay 208 and the pre-charge resistor 209 can be connected through electrical connectors 300 such as a conductive bar 301 to form a pre-charge circuit, and the pre-charge circuit is connected in parallel with the main positive relay 203 on the first circuit.

[0118] The positive terminal of the charging connector 603 is sequentially connected to the positive terminal of the battery connector 601 through the fast charging positive relay 206 and the main positive relay 203, and the various electrical components 200 can be connected through the conductive bar 301. The negative terminal of the charging connector 603 is sequentially connected to the negative terminal of the battery connector 601 through the fast charging negative relay 207 and the main negative relay 204, and the various electrical components 200 can be connected through the conductive bar 301.

[0119] At this time, the fast charging positive relay 206 is connected to the battery connector 601 through the main positive relay 203, and the fast charging negative relay 207 is connected to the battery connector 601 through the main negative relay 204, which can shorten the wiring distance and simplify the layout and wiring of the conductive bar 301.

[0120] Regarding the working control of components such as the pre-charge relay 208, the fast charging positive relay 206, the fast charging negative relay 207, the main positive relay 203, and the main negative relay 204, those skilled in the art can perform conventional designs based on common knowledge and will not be elaborated here.

[0121] In some embodiments, refer to Figure 7, the battery connector 601 is arranged at the second end D2 of the box body 500 in the first direction X. The second fuse 202, the main positive relay 203, the insulating seat 100, and the fast charging negative relay 207 are arranged side by side in the first direction X to form the first row of electrical components 200A, and the second fuse 202 is arranged close to the battery connector 601. The pre-charge relay 208, the Hall sensor 205, the main negative relay 204, and the fast charging positive relay 206 are arranged side by side in the first direction X to form the second row of electrical components 200B, and are located on one side of the insulating seat 100 in the second direction Y. The pre-charge resistor 209 is arranged between the second fuse 202 and the pre-charge relay 208 in the second direction Y.

[0122] At this time, each electrical component 200 is generally arranged in two rows in the high-voltage distribution box 1000, and the layout in the high-voltage distribution box 1000 is reasonable and simple, and the wiring is convenient.

[0123] In some embodiments, referring to Figure 9 , the high-voltage distribution box 1000 further includes a battery manager 700 arranged in the box body 500, and the battery manager 700 is arranged above all the electrical components 200.

[0124] The battery manager 700 (BMS, BATTERY MANAGEMENT SYSTEM) is used for intelligent management and maintenance of the power battery, monitors the state of the power battery, and prevents overcharging and over-discharging of the power battery to extend the service life of the power battery. Specifically, a second mounting plate 502 can be set in the box body 500. The second mounting plate 502 is arranged above the first mounting plate 501 and is used to support the battery manager 700. Each electrical component 200 is arranged in the lower layer space separated by the first mounting plate 501 and the second mounting plate 502.

[0125] At this time, the battery manager 700 on the low-voltage side and the electrical components 200 on the high-voltage side are arranged in layers, which is more convenient for maintenance and installation, and the layout is relatively reasonable.

[0126] In a further embodiment, referring to Figure 8 , and in combination with Figure 9 , the electrical connector 300 includes a low-voltage acquisition wire harness 304 and / or a low-voltage interlock wire harness 305 arranged below the battery manager 700 and electrically connected to the battery manager 700. The low-voltage acquisition wire harness 304 is used to acquire the working state information of at least part of the electrical components 200, and is located between the first row of electrical components 200A and the second row of electrical components 200B, and passes through the wire harness fixing part 12 of the insulating seat 100. The low-voltage interlock wire harness 305 has a first interlock terminal S1, at least part of the connectors 600 have a second interlock terminal S2, the second interlock terminal S2 is inserted into the first interlock terminal S1, and the low-voltage interlock wire harness 305 is arranged along the inner wall of the box body 500.

[0127] The low-voltage acquisition harness 304 can be used to acquire the current, voltage, etc. of each relay and each fuse. Those skilled in the art can flexibly design the specific acquisition scheme according to requirements. The low-voltage interlock harness 305 checks the integrity and continuity of the high-voltage circuit (the above-mentioned power-on circuit) where the connector 600 is located by plugging the first interlock terminal S1 and the second interlock terminal S2, and identifies abnormal on / off of the high-voltage circuit to ensure electrical safety. This is a conventional means in the art, and the specific implementation method will not be elaborated here.

[0128] At this time, the low-voltage acquisition harness 304 is arranged between the first row of electrical components 200A and the second row of electrical components 200B, and is fixed by the harness fixing part 12 on the insulating seat 100, which can make full use of the space between the two rows of electrical components for wiring, with high space utilization. Moreover, by arranging the low-voltage acquisition harness 304 between the two rows of electrical components, the acquisition branches on the low-voltage acquisition harness 304 can be set shorter, reducing unnecessary wiring and making the wiring simple and convenient.

[0129] In addition, the low-voltage interlock harness 305 is routed along the inner wall of the box body 500 close to each connector 600, which can shorten the routing length of each first interlock terminal S1 of the low-voltage interlock harness 305 and make the routing more simple and convenient.

[0130] Further in the embodiment, referring to Figure 9 , the connector 600 further includes a communication connector 604, the electrical connector 300 includes a low-voltage communication harness 306, and the battery management unit 700 is connected to the communication connector 604 via the low-voltage communication harness 306.

[0131] The communication connector 604 can be used for the battery management unit 700 to feedback signals and data to the relevant control systems (such as the central control system) of the electric vehicle, so as to facilitate the control system to achieve global management and monitoring of the electric vehicle. The communication connector 604 is usually used to plug in cables, harnesses, etc. connected to the electric vehicle control system. The use of the communication connector 604 on the high-voltage distribution box 1000 is a conventional means in the art and will not be elaborated here.

[0132] Specifically, the communication connector 604 can be arranged at the second end D2 of the box body 500. The number of communication connectors 604 can also be configured as one or more, which can be flexibly set according to requirements.

[0133] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0134] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An insulating base (100), characterized in that, include: A seat body (10) having a mounting surface (M) and a locking hole (11) penetrating the mounting surface (M); A limiting portion (20) is provided on the mounting surface (M) and forms a plurality of first limiting grooves (X1) arranged in sequence along a first direction (X) for mounting fuses; a stopper (30) provided on the mounting surface (M) and spaced apart from the limiting portion (20) in a second direction (Y) intersecting the first direction (X) so as to jointly form a second limiting groove (X2) extending along the first direction (X), the second limiting groove (X2) being used for mounting the conductive bar (310) and being in communication with all the first limiting grooves (X1); The locking hole (11) is used to install a locking piece for locking the conductive bar (310) and the fuse to the base (10).

2. The insulating base (100) according to claim 1, characterized in that, The limiting portion (20) comprises a partition plate (21) arranged on the mounting surface (M), wherein a plurality of the partition plates (21) are sequentially arranged at intervals along the first direction (X) and are separated to form a plurality of the first limiting grooves (X1) on the mounting surface (M); The limiting portion (20) further comprises a first protrusion (22) and / or a second protrusion (23); the first protrusion (22) is arranged in the first limiting groove (X1) and is used to limit the displacement of the fuse in the first direction (X); the second protrusion (23) is arranged in the first limiting groove (X1) and is located at an end of the first limiting groove (X1) away from the second limiting groove (X2), and is used to limit the displacement of the wiring harness connected to the fuse in the first direction (X).

3. The insulating base (100) according to claim 1, characterized in that, The base (10) is provided with a wire harness fixing portion (12) at one end in the second direction (Y), and the wire harness fixing portion (12) is used to fix the wire harness; and / or, The end of the seat body (10) facing away from the mounting surface (M) is recessed and provided with a wiring groove (13) for wiring harnesses, and the wiring groove (13) passes through the two opposite ends of the seat body (10) in the second direction (Y); the seat body (10) is provided with a reinforcing rib (14), and the reinforcing rib (14) is located in the wiring groove (13); and / or, The seat body (10) is provided with a fixing hole (16), and the fixing hole (16) is used to install a locking member for locking the seat body (10) to an external structure; the mounting surface (M) is recessed to form a mounting groove (15), and the fixing hole (16) is arranged at the bottom of the mounting groove (15).

4. The insulating base (100) according to claim 1, characterized in that, The bottom of the base (10) is provided with a foolproof mounting portion (17), and the base (10) is positioned and mounted on the external structure via the foolproof mounting portion (17); and / or, An exhaust hole (18) is provided at the bottom of the locking hole (11), and the exhaust hole (18) is provided through the seat body (10) along the height direction (Z) of the seat body (10).

5. A high-voltage power distribution box (1000), characterized in that, include: Box (500); The insulating seat (100) according to any one of claims 1 to 4, located in the box (500); An electrical component (200) is located in the box (500), comprising a plurality of first fuses (201), each of the first limiting grooves (X1) being installed with the first fuse (201); An electrical connector (300) comprising a conductive bar (310), part of the conductive bar (310) being mounted in the second limiting groove (X2), and part of the first fuse (201) extending into the second limiting groove (X2) and being pressed onto the conductive bar (310) in the second limiting groove (X2); and A locking member (400) is installed in the locking hole (11) and locks the first fuse (201) and the conductive bar (310) to the base (10).

6. The high-voltage power distribution box (1000) according to claim 5, characterized in that, The high-voltage distribution box (1000) comprises a connector (600) arranged on the outer wall of the box body (500); The connector (600) includes a battery connector (601) and a plurality of load connectors (602), and the electrical component (200) further includes a second fuse (202), a main positive relay (203), a main negative relay (204) and a Hall sensor (205); The positive terminal of the battery connector (601), the second fuse (202), the main positive relay (203) and the positive terminal of the load connector (602) are electrically connected in sequence via the electrical connector (300) to form a first circuit, and the first fuse (201) is connected in series between at least part of the load connector (602) and the main positive relay (203); The negative terminal of the battery connector (601), the Hall sensor (205), the main negative relay (204), and the negative terminal of the load connector (602) are electrically connected in sequence via the electrical connector (300) to form a second circuit, and each load connector (602) is connected in parallel to the main negative relay (204).

7. The high-voltage power distribution box (1000) according to claim 6, characterized in that, The electrical connector (300) comprises a first high-voltage wire harness group (302) and a second high-voltage wire harness group (303); One end of the first high-voltage wire harness group (302) is connected to the positive terminal of the load connector (602), and the other end is connected to an end of the first fuse (201) facing away from the second limiting groove (X2); One end of the second high-voltage wire harness group (303) is connected to the negative terminal of the load connector (602), and the other end is connected to the main negative relay (204); The plurality of load connectors (602) are arranged at the first end (D1) of the box (500) in the second direction (Y), the main negative relay (204) is arranged on the side of the insulating seat (100) away from the first end (D1), and the second high-voltage wire harness group (303) passes through the wiring groove (13) at the bottom of the insulating seat (100) and is located below the first high-voltage wire harness group (302).

8. The high-voltage power distribution box (1000) according to claim 6, characterized in that, The connector (600) further includes a charging connector (603), and the electrical component (200) further includes a fast charge positive relay (206), a fast charge negative relay (207), a pre-charge relay (208), and a pre-charge resistor (209); The pre-charge relay (208) and the pre-charge resistor (209) are connected in series, and are respectively electrically connected to two connection ends of the main positive relay (203) located in the first circuit; One end of the fast charge positive relay (206) is connected to the positive terminal of the charging connector (603), and the other end is connected to the connection end of the main positive relay (203) disposed away from the battery connector (601) in the first circuit; One end of the fast charge negative relay (207) is connected to the negative terminal of the charging connector (603), and the other end is connected to the connection end of the main negative relay (204) disposed away from the battery connector (601) in the second circuit.

9. The high-voltage power distribution box (1000) according to claim 8, characterized in that, The battery connector (601) is disposed at the second end (D2) of the box body (500) in the first direction (X). The second fuse (202), the main positive relay (203), the insulating seat (100), and the fast charge negative relay (207) are arranged side by side in the first direction (X) to form a first row of electrical components (200A), and the second fuse (202) is disposed close to the battery connector (601); The pre-charge relay (208), the Hall sensor (205), the main negative relay (204), and the fast charge positive relay (206) are arranged side by side in the first direction (X) to form a second row of electrical components (200B), and are located on one side of the insulating seat (100) in the second direction (Y); The pre-charge resistor (209) is disposed between the second fuse (202) and the pre-charge relay (208) in the second direction (Y).

10. The high-voltage power distribution box (1000) according to claim 9, characterized in that, The high-voltage distribution box (1000) further includes a battery manager (700) disposed in the box body (500), and the battery manager (700) is disposed above all the electrical components (200); The electrical connector (300) includes a low-voltage acquisition wire harness (304) and / or a low-voltage interlock wire harness (305) disposed below the battery manager (700) and electrically connected to the battery manager (700); the low-voltage acquisition wire harness (304) is used for acquiring the working state information of at least part of the electrical components (200), and is located between the first row of electrical components (200A) and the second row of electrical components (200B), and passes through the wire harness fixing portion (12) of the insulating seat (100); the low-voltage interlock wire harness (305) has a first interlock terminal (S1), at least part of the connector (600) has a second interlock terminal (S2), and the second interlock terminal (S2) is inserted into the first interlock terminal (S1); the low-voltage interlock wire harness (305) is arranged along the inner wall of the box body (500); The connector (600) further includes a communication connector (604), the electrical connector (300) includes a low-voltage communication wire harness (306), and the battery manager (700) is connected to the communication connector (604) via the low-voltage communication wire harness (306).

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