Energy management device for power battery pack of new energy automobile

Abstract

The utility model relates to an energy management device for a power battery pack of a new energy automobile, which belongs to the technical field of power batteries and comprises a shell, a mounting bracket, a BDU and a BMU, the mounting bracket comprises a top plate, a positioning rod and a mounting plate, the positioning rod is mounted on the top plate, the mounting plate is mounted in the middle of the positioning rod, the BDU and the BMU are mounted on the mounting plate firstly, and then the BMU and the BDU are mounted on the mounting plate. The whole mounting bracket is inserted into the enclosure frame, the positioning rod is locked and connected with the bottom plate of the shell through the bolt, then the BDU and the BMU are subjected to wire harness wiring, during wiring, classification is carried out according to the types or functions of wire harnesses, and different wire harness clamping pieces are adopted for classification, so that the wire harnesses are prevented from being disordered, and the wiring quality of the BDU and the BMU is improved. The whole device can be installed on a new energy automobile. The whole device is compact in structure and small in occupied space, the space ratio of the new energy automobile is reduced, the new energy automobile can be provided with more batteries, and meanwhile the device is compact in structure, easy and convenient to install and beneficial to repair, maintenance and replacement.

Description

Technical Field

[0001] The utility model belongs to the technical field of power batteries, in particular to an energy management device for a power battery pack of a new energy vehicle. Background Art

[0002] As the energy density of automotive batteries increases, the volume of batteries in the battery pack assembly (hereinafter referred to as PACK) is increasing, and the space reserved for other modules and components is decreasing. Effectively utilizing the remaining space in the PACK and solving the problems of electrical safety and electromagnetic interference have become key concerns.

[0003] The battery management unit (BMU) is generally a flat rectangular block. When it is installed vertically in the lower shell of the PACK, the height space of the PACK can be effectively utilized. However, vertical installation may cause condensed water to flow into the BMU along the wiring harness and cause failure. Therefore, the BMU can only be installed horizontally on the lower shell of the PACK. When installed horizontally, it will take up more horizontal space and waste height space.

[0004] The battery disconnect unit (BDU) has no fixed shape. The height is generally determined by the height of the internal relays, and the horizontal boundary is determined by the selection of internal components combined with the high-voltage architecture. It is generally larger than the horizontally installed BMU. There is a certain amount of space left in the height.

[0005] Therefore, for performance batteries, a battery management device that takes up less space is beneficial to the battery life of the entire new energy battery. Reducing the space occupied by battery management components can allow more batteries to be arranged in the car. Utility Model Content

[0006] The utility model aims to solve the problem that the existing battery management device in new energy vehicles occupies a large space.

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0008] The utility model discloses an energy management device for a new energy vehicle power battery pack, comprising a shell, a mounting bracket, a BDU and a BMU. The mounting bracket comprises a top plate, a positioning rod and a mounting plate. The positioning rod is mounted on the top plate, the mounting plate is mounted on the middle of the positioning rod, the BDU and the BMU are respectively mounted on the two side walls of the mounting plate, a positioning hole is provided on the shell, a threaded hole is provided on the positioning rod, and the positioning rod is connected to the positioning hole by a bolt.

[0009] Preferably, a shielding layer is provided in the mounting plate, and the shielding layer is used to shield electromagnetic interference of the BDU and the BMU.

[0010] Preferably, the housing comprises a base plate and a surrounding frame, the surrounding frame is mounted on the base plate, the base plate is provided with through holes for mounting and fixing, the mounting plate is located inside the surrounding frame, and the surrounding frame is provided with a plurality of heat dissipation holes.

[0011] Preferably, the enclosure frame is provided with wiring openings, which are arranged up and down, and the wiring openings arranged up and down correspond to the positions of the BDU and the BMU respectively.

[0012] Preferably, accessory mounting holes are provided above and below the wiring opening, and a wiring harness clamp is provided inside the wiring opening, and the wiring harness clamp is mounted on the accessory mounting hole by screws.

[0013] Preferably, the cross-section of the wiring harness clamp is T-shaped, a wiring harness hole is provided on the wiring harness clamp, a plurality of wiring harness clamps are installed on the wiring opening, and different types of wiring harnesses pass through different wiring harness clamps. Beneficial Effects

[0014] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0015] The utility model of the energy management device for the power battery pack of a new energy vehicle first installs the BDU and BMU on the mounting plate, inserts the entire mounting bracket into the enclosure, and locks the positioning rod with the bottom plate of the housing through bolts, and then respectively connects the BDU and BMU with the wiring harness. When wiring, the wiring harness is classified according to the type or function, and different wiring harness clips are used for classification to avoid wiring harness confusion. The entire device can be installed on the new energy vehicle for you. The entire device has a compact structure and occupies a small space, which reduces the space occupied by the new energy vehicle, so that the new energy vehicle can be equipped with more batteries. At the same time, the device has a compact structure and is easy to install, which is conducive to repair, maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the energy management device for the power battery pack of a new energy vehicle of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of the mounting bracket of the energy management device for the power battery pack of a new energy vehicle of the present utility model.

[0018] Explanation of the symbols in the schematic diagram:

[0019] 100, housing; 110, bottom plate; 111, through hole; 120, frame; 121, heat dissipation hole; 122, wiring opening; 123, accessory installation hole; 124, wiring harness clamp;

[0020] 200, mounting bracket; 210, top plate; 220, positioning rod; 230, mounting plate; 231, shielding layer;

[0021] 300, BDU;

[0022] 400, BMU. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0025] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0027] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. 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.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Example

[0029] See attached Figure 1-2 The energy management device of the new energy vehicle power battery pack of this embodiment includes a shell 100, a mounting bracket 200, a BDU300 and a BMU400. The mounting bracket 200 includes a top plate 210, a positioning rod 220 and a mounting plate 230. The positioning rod 220 is installed on the top plate 210, and the mounting plate 230 is installed in the middle of the positioning rod 220. The BDU300 and BMU400 are respectively installed on the two side walls of the mounting plate 230. A positioning hole is provided on the shell 100, and a threaded hole is provided on the positioning rod 220. The positioning rod 220 is connected to the positioning hole by a bolt.

[0030] In this embodiment, a shielding layer 231 is provided in the mounting plate 230 , and the shielding layer 231 is used to shield the electromagnetic interference of the BDU 300 and the BMU 400 .

[0031] The housing 100 of this embodiment includes a base plate 110 and a surrounding frame 120 . The surrounding frame 120 is mounted on the base plate 110 . The base plate 110 is provided with through holes 111 for mounting and fixing. The mounting plate 230 is located in the surrounding frame 120 . The surrounding frame 120 is provided with a plurality of heat dissipation holes 121 .

[0032] In this embodiment, the frame 120 is provided with wiring openings 122 , which are arranged vertically. The wiring openings 122 respectively correspond to the positions of the BDU 300 and the BMU 400 .

[0033] In this embodiment, accessory mounting holes 123 are provided above and below the wiring opening 122 , and a wiring harness clamp 124 is provided inside the wiring opening 122 . The wiring harness clamp 124 is mounted on the accessory mounting hole 123 by screws.

[0034] The wire harness clamp 124 of the present embodiment has a T-shaped cross section, a wire harness hole is provided on the wire harness clamp 124 , a plurality of wire harness clamps 124 are installed on the wiring opening 122 , and different types of wire harnesses pass through different wire harness clamps 124 .

[0035] Working principle: first install BDU300 and BMU400 on the mounting plate 230, and insert the entire mounting bracket 200 into the enclosure 120, and lock and connect the positioning rod 220 with the bottom plate 110 of the housing 100 by bolts, and then respectively connect the wire harnesses of BDU300 and BMU400. When wiring, classify the wire harnesses according to their type or function, and use different wire harness clips 124 to classify them to avoid confusion of the wire harnesses. The entire device can be installed on your new energy vehicle. The entire device has a compact structure and occupies a small space, which reduces the space occupied by new energy vehicles, so that new energy vehicles can be equipped with more batteries. At the same time, the device has a compact structure and is easy to install, which is conducive to repair, maintenance and replacement.

[0036] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. Energy management device for power battery pack of new energy vehicle, characterized by: The invention comprises a housing (100), a mounting bracket (200), a BDU (300) and a BMU (400); the mounting bracket (200) comprises a top plate (210), a positioning rod (220) and a mounting plate (230); the positioning rod (220) is mounted on the top plate (210); the mounting plate (230) is mounted in the middle of the positioning rod (220); the BDU (300) and the BMU (400) are respectively mounted on two side walls of the mounting plate (230); a positioning hole is provided on the housing (100); a threaded hole is provided on the positioning rod (220); and the positioning rod (220) is connected to the positioning hole by a bolt.

2. The energy management device for a new energy vehicle power battery pack according to claim 1, characterized in that: A shielding layer (231) is provided inside the mounting plate (230), and the shielding layer (231) is used to shield electromagnetic interference of the BDU (300) and the BMU (400).

3. The energy management device for a new energy vehicle power battery pack according to claim 1, characterized in that: The housing (100) comprises a bottom plate (110) and a surrounding frame (120); the surrounding frame (120) is mounted on the bottom plate (110); a through hole (111) for mounting and fixing is provided on the bottom plate (110); the mounting plate (230) is located inside the surrounding frame (120); and a plurality of heat dissipation holes (121) are provided on the surrounding frame (120).

4. The energy management device for a new energy vehicle power battery pack according to claim 3 is characterized in that: The enclosure frame (120) is provided with wiring openings (122), the wiring openings (122) are arranged up and down, and the wiring openings (122) arranged up and down correspond to the positions of the BDU (300) and the BMU (400) respectively.

5. The energy management device for a new energy vehicle power battery pack according to claim 4 is characterized in that: Accessory mounting holes (123) are provided above and below the wiring opening (122), a wiring harness clamp (124) is provided inside the wiring opening (122), and the wiring harness clamp (124) is mounted on the accessory mounting hole (123) by means of screws.

6. The energy management device for a new energy vehicle power battery pack according to claim 5, characterized in that: The cross section of the wire harness clamp (124) is T-shaped, a wire harness hole is provided on the wire harness clamp (124), a plurality of wire harness clamps (124) are installed on the wiring opening (122), and different types of wire harnesses pass through different wire harness clamps (124).

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