CN220476076U

CN220476076U - Low-voltage PDU structure

Info

Publication number: CN220476076U
Application number: CN202321928930.4U
Authority: CN
Inventors: 楼炀; 胡浩; 许奇
Original assignee: Hangzhou Pengcheng New Energy Technology Co ltd
Current assignee: Hangzhou Pengcheng New Energy Technology Co ltd
Priority date: 2023-07-21
Filing date: 2023-07-21
Publication date: 2024-02-09
Anticipated expiration: 2033-07-21

Abstract

The utility model discloses a low-voltage PDU structure, which belongs to the technical field of PDU structures, and comprises a box body positioned outside a battery pack, wherein the box body is made of metal materials, an electric installation plate and a control plate support are arranged in the box body, the electric installation plate and the control plate support are arranged in a vertically stacked mode, the electric installation plate and the control plate support are respectively fixedly connected with the box body, an upper cover made of metal materials is arranged at the upper part of the box body, and a sealing part is arranged at the joint of the upper cover and the box body; through setting up box and upper cover of metal material, improve the protection level of product, through setting up the PDU structure outside the battery package and with the setting mode of control panel support setting in the box, unified the structural style of this PDU product, improved the degree of integrating of product.

Description

Low-voltage PDU structure

Technical Field

The utility model relates to the technical field of PDU structures, in particular to a low-voltage PDU structure suitable for non-road vehicles.

Background

For non-road new energy vehicles such as forklifts, mechanical vehicles and the like, for example, the utility model with the application number of 202123002379.4 and the utility model with the application number of 202221169247.2, a battery pack generally adopts an MTP+BDU or MTP+electric component assembly structure, the electric assembly of components or the protection level of the BDU is lower, the battery system is required to be used for protecting the whole pack, the BDU arranged in the battery pack is influenced by the internal structure of the battery pack, the battery pack has no uniform modeling, each vehicle type is required to be designed with different structures according to requirements, the production and manufacturing cost is higher, and the risk of unknown system architecture is increased.

In order to solve the problems, the utility model provides a low-voltage PDU structure, which improves the protection level of products, unifies the structural form of the device and reduces the production and manufacturing cost.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art, and provides a low-voltage PDU structure which improves the protection level of products, unifies the structural form of the products, improves the integration degree of the products and reduces the probability of unknown risks of system architecture.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a low-voltage PDU structure, which comprises a box body positioned outside a battery pack, wherein the box body is made of metal materials, an electric mounting plate used for fixing various electric elements and a control plate bracket used for fixing a control plate and a main plate are arranged in the box body, the electric mounting plate and the control plate bracket are arranged in a vertically stacked mode, the electric mounting plate and the control plate bracket are respectively and fixedly connected with the box body, an upper cover made of metal materials is arranged at the upper part of the box body, and a sealing part is arranged at the joint of the upper cover and the box body;

preferably, the electric mounting plate and the control board bracket are detachably connected with the box body respectively;

preferably, the electrical mounting plate is detachably connected with the bottom wall of the box body;

preferably, a waterproof nut is welded at the bottom of the box body, a first threaded hole matched with the waterproof nut is formed in the electric mounting plate, and a waterproof bolt penetrates through the first threaded hole to be connected with the waterproof nut;

preferably, a bracket is welded on the side wall of the box body, and the bracket is detachably connected with the control panel bracket;

preferably, a second threaded hole is formed in the bracket, a third threaded hole is formed in the control panel bracket, and a waterproof bolt penetrates through the second threaded hole and one end of the third threaded hole to be connected with a waterproof nut;

preferably, a nylon gram head for leading out a 4G module antenna is arranged on the side wall of the box body, and the 4G module antenna is in signal connection with the control board;

preferably, a wall penetrating terminal, a communication plug-in unit and a heating plug-in unit are arranged on the side wall of the box body, and the wall penetrating terminal, the communication plug-in unit and the heating plug-in unit all meet the requirement of IP67 working conditions;

preferably, the electrical component and the busbar are arranged on the electrical mounting plate, and a PC insulating sheet is arranged on one side of the electrical mounting plate, on which the electrical component is arranged.

Compared with the prior art, the utility model has the following technical effects:

according to the utility model, the low-voltage PDU structure is arranged outside the battery pack, so that the low-voltage PDU structure can be free from the influence of parts in the battery pack, and the control board and the main board are arranged inside the PDU structure, compared with the MTP+BDU or MTP+electric component assembly structure mode adopted by a non-road vehicle in the prior art, the integration level of the system is improved, the probability of unknown risks of the system architecture is reduced, the integrated low-voltage PDU structure has uniform modeling, the standardization of a propulsion system is facilitated, and the production and manufacturing cost is reduced; in addition, adopt the box of metal material, set up sealing member in the junction of upper cover and box, improved the protection level of the low pressure PDU structure of this application disclosure.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an exploded view of the low pressure PDU structure;

fig. 2 is a partial cross-sectional view of the low pressure PDU structure.

Wherein, 1, the box body; 2. an electrical mounting plate; 3. a control board; 4. a main board; 5. a control board bracket; 6. an upper cover; 7. a sealing member; 8. a waterproof nut; 9. waterproof bolts; 10. a bracket; 11. a nylon Long Gelan head; 12. a wall penetrating terminal; 13. a communication plug-in; 14. heating the insert; 15. a relay; 16. a busbar; 17. an insulator; 18. a fuse; 19. a shunt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1 to 2, the present utility model provides a low voltage PDU structure, comprising a case 1 located outside a battery pack, the case 1 being made of metal, an electric installation board 2 for fixing various electric components and a control board bracket 5 for fixing a control board 3 and a main board 4 being provided in the case 1, the electric installation board 2 and the control board bracket 5 being stacked up and down, the electric installation board 2 and the control board bracket 5 being fixedly connected with the case 1, respectively, an upper cover 6 being provided with metal on an upper portion of the case 1, a sealing member 7 being provided at a junction of the upper cover 6 and the case 1.

The low-voltage PDU structure is arranged outside the battery pack, so that the low-voltage PDU structure can be free from the influence of parts in the battery pack, the control board 3 and the main board 4 are arranged inside the PDU structure, compared with the MTP+BDU or MTP+electric component assembly structure mode adopted by non-road vehicles in the prior art, the integration level of the system is improved, the probability of unknown risks of the system architecture is reduced, the integrated low-voltage PDU structure has uniform modeling, the standardization of a propulsion system is facilitated, and the production and manufacturing cost is reduced; in addition, the box body 1 made of metal is provided with the sealing component 7 at the joint of the upper cover 6 and the box body 1, so that the protection level of the low-voltage PDU structure can be improved, specifically, the box body 1 and the upper cover 6 can be manufactured and formed by adopting a sheet metal stamping or die casting process, the sealing component 7 arranged at the joint of the upper cover 6 and the box body 1 can be sealing glue or sealing strips capable of realizing the protection level of IP67, and in order to facilitate the replacement of the faulty electric installation plate 2 or control plate bracket 5, the sealing component 7 is preferably a sealing strip, and the upper cover 6 and the box body 1 are detachably and fixedly connected by adopting the waterproof bolt 9 and the waterproof nut 8.

In order to facilitate the installation and replacement of the faulty electric installation plate 2 and the control plate bracket 5, the electric installation plate 2 and the control plate bracket 5 are respectively and detachably connected with the box body 1, and in order to facilitate the connection of the electric elements installed on the electric installation plate 2 with the control plate 3, the electric installation plate 2 is arranged at the lower part of the control plate bracket 5, in particular, the electric installation plate 2 is detachably connected with the bottom wall of the box body 1, and the control plate bracket 5 is detachably connected with the side wall of the box body 1; the utility model provides a detachable connection mode, such as clamping connection, bolt-nut connection, screw connection and the like, and the connection mode of bolts and nuts is adopted for arranging the electric mounting plate 2 and the bottom wall of the box body 1 and the control plate bracket 5 and the side wall of the box body 1 under the condition of fully considering the requirements of connection firmness, protection level and the like.

Specifically, waterproof nut 8 is welded to the diapire of box 1, is equipped with the first screw hole with waterproof nut 8 looks adaptation on the electrical installation board 2, waterproof bolt 9 pass first screw hole and waterproof nut 8 be connected, also can be at the upper surface welding installing support of diapire, welding waterproof bolt 9 on the installing support, the screw hole on the electrical installation board 2 pass waterproof bolt 9 after with waterproof nut 8 fixed connection.

The side wall of the box body 1 is welded with a bracket 10, the bracket 10 is detachably connected with the control panel bracket 5, specifically, a second threaded hole is formed in the bracket 10, a third threaded hole is formed in the control panel bracket 5, one end of a waterproof bolt 9, which penetrates through the second threaded hole and the third threaded hole, is connected with a waterproof nut 8, a waterproof bolt 9 can be welded on the bracket 10, and the waterproof bolt 9 penetrates through the third threaded hole and is fixedly connected with the waterproof nut 8.

Be equipped with on the lateral wall of box 1 and supply the nylon Long Gelan head 11 that 4G module antenna draws forth, reduce the manufacturing cost of device, 4G module antenna and control panel 3 signal connection are equipped with on the lateral wall of box 1 and wear wall terminal 12, communication plug-in components 13 and heating plug-in components 14, wear wall terminal 12, communication plug-in components 13 and heating plug-in components 14 all satisfy IP67 operating mode demand, wear wall terminal 12's inside to be equipped with the copper post, play overcurrent effect, the copper post is connected with the power.

The electric installation plate 2 is respectively provided with a relay 15, a busbar 16, an insulator 17, a fuse 18, a shunt 19 and other components, wherein the busbar 16 is an aluminum row, the aluminum row has the advantages of good energy saving effect, good heat conduction effect and the like, the upper surface of the electric installation plate 2 is provided with a PC insulating sheet, the insulation protection of the electric installation plate 2 is increased, and the PC insulating sheet is provided with the relay 15, the insulator 17, the fuse 18, the shunt 19 and other electrical components, wherein the relay 15 is a horizontal relay so as to improve the space utilization rate; the upper surface of control panel support 5 is equipped with control panel 3, and the lower surface is equipped with mainboard 4, and the distance between busbar 16 and mainboard 4, control panel 3 satisfies EMC performance's requirement.

The traditional assembly mode is as follows: the utility model also provides an assembly method of the low voltage PDU structure, which comprises the following steps:

s1, fixing an electric mounting plate 2 fixed with an electric element and a busbar 16 in a box body 1;

firstly, electrical components such as a relay 15, an insulator 17, a fuse 18, a shunt 19 and the like are fixed on an electrical mounting plate 2 in a welding or sticking mode, after the electrical components are mounted, the electrical mounting plate 2 is fixed in a box body 1, and the electrical components or circuits are easily damaged by sparks generated by welding due to the fact that the electrical components fixed on the electrical mounting plate 2 are affected by sparks generated by welding, so that the electrical mounting plate 2 is fixed in the box body 1 in a waterproof nut and waterproof bolt connecting mode.

S2, mounting a through-wall terminal 12 on the box body 1, and connecting a busbar 16 with each electrical element;

s3, fixing a control board bracket 5 fixed with a control board 3 and a main board 4 in the box body 1;

firstly, a control board 3 and a main board 4 are fixed on a control board bracket 5, then the control board bracket 5 is fixed in a box body 1, and in order to facilitate connection of an electrical element on an electrical installation board 2 and the control board 3, the electrical installation board 2 is arranged at the lower part of the control board bracket 5; the side wall of the box body 1 is provided with a bracket 10, and the control panel bracket 5 and the bracket 10 are fixedly connected in a waterproof nut and waterproof bolt mode.

S4, mounting a communication plug-in 13 and a heating plug-in 14 outside the box body 1, and connecting a wire harness and an antenna inside the box body 1;

s5, fixedly connecting the box body 1 with the upper cover 6, and arranging a sealing part 7 at the connecting part of the box body 1 and the upper cover 6.

For the spare part that breaks down in the box 1 of being convenient for change, box 1 also adopts waterproof bolt and waterproof nut's mode detachable connection with upper cover 6 to set up the sealing strip that can realize IP67 grade protection in the junction.

It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A low pressure PDU structure, characterized by: including being located the outside box of battery package, the box adopts the metal material, be equipped with the electrical installation board that is used for fixed various electrical components in the box and be used for fixed control panel and the control panel support of mainboard, the electrical installation board with the control panel support stacks up and down and sets up, the electrical installation board with the control panel support respectively with box fixed connection, the upper portion of box is equipped with the upper cover of metal material, the upper cover with the junction of box is equipped with sealing member.

2. The low pressure PDU structure of claim 1, wherein: the electric mounting plate and the control board support are detachably connected with the box body respectively.

3. The low pressure PDU structure of claim 2, wherein: the electrical mounting plate is detachably connected with the bottom wall of the box body.

4. A low pressure PDU structure as recited in claim 3, wherein: waterproof nuts are welded at the bottom of the box body, first threaded holes matched with the waterproof nuts are formed in the electric mounting plate, and waterproof bolts penetrate through the first threaded holes and are connected with the waterproof nuts.

5. The low pressure PDU structure of claim 2, wherein: and a bracket is welded on the side wall of the box body and is detachably connected with the control panel bracket.

6. The low pressure PDU structure of claim 5, wherein: the waterproof screw bolt penetrates through the second threaded hole and one end of the third threaded hole to be connected with the waterproof nut.

7. The low pressure PDU structure of claim 1, wherein: nylon gram heads for leading out the 4G module antenna are arranged on the side wall of the box body, and the 4G module antenna is in signal connection with the control board.

8. The low pressure PDU structure of claim 1, wherein: the wall terminal, communication plug-in components and heating plug-in components are equipped with on the lateral wall of box, pass through the wall terminal communication plug-in components with the heating plug-in components all satisfy IP67 operating mode demand.

9. The low pressure PDU structure of claim 1, wherein: the electric elements and the bus bars are arranged on the electric mounting plate, and a PC insulating sheet is arranged on one side of the electric mounting plate, on which the electric elements are arranged.