CN223488517U - A battery replacement high voltage box - Google Patents

Abstract

The utility model relates to the technical field of electric automobile power conversion, in particular to a power conversion high-voltage box which comprises a box body, wherein the box body consists of an upper cover plate, a bottom plate, a front plate, a rear plate, a left plate and a right plate, a supporting frame is arranged in the box body and is divided into a first layer of frame and a second layer of frame from top to bottom, the first layer of frame is provided with a high-voltage power distribution unit, the second layer of frame is provided with a low-voltage management unit, a battery high-voltage input interface is arranged on the front plate, a power conversion connector is arranged on the upper cover plate, and the power conversion connector is electrically connected with the battery high-voltage input interface through the high-voltage power distribution unit. Compared with the existing high-voltage box, the supporting frame improves the overall structural strength, rigidity strength and stability of the high-voltage box, can bear extrusion force possibly generated outside in the power exchange process, and effectively prevents the problem that the high-voltage box is damaged due to the deformation of the box body of the high-voltage box.

Description

Trade electric high voltage box

Technical Field

The utility model relates to the technical field of electric vehicle power conversion, in particular to a power conversion high-voltage box.

Background

At present, the electricity exchanging mode of the heavy truck can be divided into top hanging type, bottom exchanging and side exchanging, no matter what electricity exchanging mode is adopted, the electric quantity carried by the heavy truck is larger, the high-voltage power distribution system comprises a plurality of interfaces such as charging, discharging, electricity exchanging and communication and related connecting cables, the system is complex, the failure points are more, and the required installation space is also large.

In order to solve the problems, the Chinese patent with the grant bulletin number of CN 212164034U discloses an all-in-one high-voltage box which comprises a shell, a rectifying part, a pressure regulating part, a water cooling component and a power distribution part, wherein the shell comprises a base, a top seat connected with the base and a cover plate connected with the top seat, the base is provided with a mounting groove, the top seat is covered with the mounting groove, the top seat is provided with a containing groove, the cover plate is covered with the containing groove, the rectifying part is arranged in the mounting groove of the base, the pressure regulating part and the rectifying part are arranged in parallel, the pressure regulating part is electrically connected with the rectifying part, the water cooling component corresponds to the arrangement positions of the rectifying part and the pressure regulating part, and the power distribution part is arranged in the containing groove of the top seat.

According to the technical scheme, the integration of the high-voltage box is effectively improved, the connecting structure of the system is simplified, but the deformation resistance of the box body is poor, certain force is needed to be applied to overcome the friction force between the high-voltage box and the mounting position of the automobile in the power conversion process, and the box body is possibly deformed due to the extrusion force generated in the process, so that components in the high-voltage box are invalid or damaged.

Disclosure of utility model

The utility model aims to strengthen the rigidity strength of a box body of a high-pressure box and prevent the problem of failure or damage of components in the high-pressure box caused by the shape of the box body.

The utility model adopts the following technical scheme:

the utility model provides a trade electric high voltage box, includes the box body, the box body comprises upper cover plate, bottom plate, front panel, rear panel, left panel and right panel, be equipped with in the box body and be used for supporting the reinforcement the braced frame of box body, braced frame divide into first layer frame and second floor's frame from top to bottom, first layer frame is equipped with high voltage distribution unit, second floor's frame is equipped with low voltage management unit, be equipped with battery high voltage input interface on the front panel, be equipped with on the upper cover plate and trade electric connector, it passes through high voltage distribution unit with battery high voltage input interface electricity is connected to trade electric connector.

Further, the high-voltage distribution unit comprises copper bars, contactors and current sensors.

Further, the low voltage management unit includes a controller.

Further, the electric-exchanging connector is an electric-exchanging connector with the same opening for charging, discharging and exchanging.

Further, the upper cover plate is provided with supporting reinforcing ribs for fixing the electricity exchanging connector.

Further, the rear panel and the bottom panel are of a middle hollow structure, and rear access panels and bottom access panels are respectively arranged at the hollow positions of the rear panel and the bottom panel.

Further, sealing strips or sealing rings are arranged on the inner sides of the rear access panel and the bottom access panel.

Further, sealing strips are arranged on the inner sides of the upper cover plate and the bottom surface.

Further, the left panel is provided with an internal communication interface, an antenna module and a wiring port, wherein the internal communication interface is connected with the battery pack and the controller, and the wiring port is respectively connected with the controller and the wiring port of the antenna module.

Further, the right panel is provided with a debugging port, an air ventilation valve and a PE interface for debugging the controller.

As can be seen from the above description of the structure of the present utility model, compared with the prior art, the present utility model has the following advantages:

1. compared with the existing high-voltage box, the supporting frame arranged inside the high-voltage box improves the overall structural strength, rigidity strength and stability of the high-voltage box, can bear extrusion force possibly generated outside in the power exchange process, and effectively prevents the problem that the high-voltage box is damaged due to the shape of the high-voltage box.

2. The utility model integrates a plurality of electric-exchanging connectors, supports multi-path charge and discharge, and the electric-exchanging connectors are charged, discharged and changed in the same port.

3. The afterbody that trades electric connector adopts the copper bar to connect, replaces traditional high-voltage cable to connect, reduces the installation space demand. The copper bar also has excellent conductivity, and has lower resistance and heat loss when transmitting large current, thereby improving the energy utilization efficiency.

Drawings

Fig. 1 is a schematic view of the external structure of the present utility model.

Fig. 2 is a schematic view of a rear access panel and a bottom access panel of the present utility model.

FIG. 3 is a schematic diagram of the internal structure of the present utility model.

Fig. 4 is a bottom view of the upper cover plate of the present utility model.

Fig. 5 is a right side view of the present utility model.

Fig. 6 is a bottom view of the present utility model.

The drawing is characterized by comprising a box body 10, an upper cover plate 11, a front panel 12, a rear panel 13, a rear access panel 131, a left panel 14, a right panel 15, a bottom panel 16, a bottom access panel 161, a supporting frame 20, a first layer frame 21, a second layer frame 22, a high-voltage distribution unit supporting plate 211, a low-voltage management unit supporting plate 221, a battery high-voltage input interface 30, a power exchange connector 40, a supporting reinforcing rib 41, a high-voltage distribution unit 50, a copper bar 51, a contactor 52, a current sensor 53, a controller 60, an antenna module 70, a wiring port 71, an internal communication port 72, an air ventilation valve 80, a debugging port 90 and a PE interface 100.

Detailed Description

The following describes the implementation of the embodiment of the present utility model with reference to the drawings.

Referring to fig. 1, 5 and 6, a power-exchanging high-voltage box comprises a box body 10, wherein the box body 10 is composed of an upper cover plate 11, a front panel 12, a rear panel 13, a left panel 14, a right panel 15 and a bottom panel 16, the front panel 12, the rear panel 13, the left panel 14 and the right panel 15 are integrally formed by adopting a single iron plate, a supporting frame 20 for supporting and reinforcing is arranged in the box body 10, and the upper cover plate 11 is fixed on the supporting frame 20 through bolts. The inner side of the upper cover plate 11 is provided with a sealing strip which plays a role in dust prevention and water prevention when the upper cover plate 11 is locked and attached. The bottom panel 16 is fixed to the support frame 20 by welding.

Referring to fig. 3, the supporting frame 20 is integrally of a rectangular prismatic structure, the supporting frame 20 is divided into a double-layer frame structure by a high-voltage distribution unit supporting plate 211, specifically, the double-layer frame structure comprises a first layer frame 21 and a second layer frame 22 from top to bottom, the high-voltage distribution unit 50 and the low-voltage management unit in the high-voltage box are respectively arranged on the first layer frame 21 and the second layer frame 22 by the double-layer frame structure, so that the electric safety is effectively ensured, and the space utilization rate is improved.

The high-voltage distribution unit supporting plate 211 is fixed on the four prisms of the supporting frame 20 through bolts and is used for installing the high-voltage distribution unit 50 of the power exchange high-voltage box, and the copper bars 51, the contactors 52 and the current sensors 53 are fixedly arranged on the high-voltage distribution unit supporting plate 211 through bolts. The copper bar 51 is fastened to the contactor 52 through a current sensor 53 for inducing current. The copper bar 51 is used for transmitting current input by an external battery pack or a charger, and the contactor 52 is used for switching on and off a circuit, so that safe and reliable operation of electrical equipment is ensured.

The low-voltage management unit supporting plate 221 is fixed at the bottom of the supporting frame 20 through bolts, and is used for installing a low-voltage management unit of a power change high-voltage box, the controller 60 is fixedly arranged on the low-voltage management unit supporting plate 221 through bolts, the controller 60 is connected with the contactor 52, is used for monitoring and managing connection and disconnection of a high-voltage power line, ensures stable operation of a circuit, manages the whole vehicle high-voltage power distribution, realizes respective control of each output, has a communication function, can exchange data in real time, and has fault detection and processing functions.

Referring to fig. 1 and 4, the upper cover 11 is provided with a plurality of electrical connectors 40, and the interfaces of the electrical connectors 40 are charging, discharging and electrical connectors. The electric replacement connector 40 is fixed on the upper cover plate 11 through the supporting reinforcing ribs 41, the lower part of the upper cover plate 11 is connected with the copper bar 51 on the high-voltage distribution unit supporting plate 211, and the interface part can be connected with the electric automobile and the charging equipment of the electric replacement station for the power transmission of the battery pack and the electric automobile, the power requirement required by the electric automobile is provided for the electric automobile, and the electric energy is supplemented for the battery pack.

Referring to fig. 1, a battery high voltage input interface 30 is provided on the front panel 12, and the battery high voltage input interface 30 is connected with an external battery pack and an internal high voltage distribution unit 50 for transmitting required electric power for the electric vehicle.

Referring to fig. 2 and 6, the rear panel 13 and the bottom panel 16 have a hollow structure, and the rear access panel 131 and the bottom access panel 161 are respectively disposed at hollow positions of the rear panel 13 and the bottom panel 16. The inner sides of the rear access panel 131 and the bottom access panel 161 are respectively provided with a sealing strip or a sealing ring, and the sealing strips or the sealing rings are used for playing a role in dust prevention and water prevention when the rear access panel 131 and the bottom access panel 161 are locked and attached.

Referring to fig. 1, an antenna module 70 is disposed on the upper left side of the left panel 14, and the antenna module 70 is used for transmitting internal data to external devices, so as to realize remote monitoring and control of the data. A connection port 71 is provided on the right side of the antenna module 70, and the connection port 71 connects the controller 60 and the antenna module 70 for transmitting internal data of the controller 60. An internal communication interface 72 is provided below the left panel 14 for communicating with an external battery pack and transmitting internal data of the battery pack.

Referring to fig. 5, a debug port 90 is provided on the upper left side of the right panel 15, and the debug port 90 is a debug interface of the controller 60, and is used for configuring various parameters of the controller 60. The upper right side of the right panel 15 is provided with a ventilation valve 80 for balancing the internal and external air pressure of the high-pressure box and preventing the pressure difference from causing the box shape. A PE interface (ground connection port) 100 is provided below the right panel 15 for connecting a ground wire, guiding fault current to the ground, and preventing damage caused by current passing through a human body or other non-conductive parts.

Specifically, this embodiment is a power conversion high voltage box, where a battery high voltage input interface 30 of the power conversion high voltage box is connected with an external battery pack, an electric vehicle needing power conversion enters a designated position in the power conversion process, the power conversion high voltage box and the battery pack are connected with the electric vehicle through a mechanical device in a top hanging, bottom conversion or side conversion manner, in this process, a certain pressure needs to be applied to the power conversion high voltage box and the battery pack, so that a extrusion force is generated to a box body 10 of the power conversion high voltage box, and the extrusion force may damage the structure of the box body 10, thereby leading to failure of the power conversion high voltage box. The supporting frame 20 in the box body 10 can effectively reduce extrusion force and prevent the box body 10 from deforming, thereby ensuring the stability and the safety of the power-changing high-voltage box.

The foregoing is merely illustrative of specific embodiments of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modification of the present utility model by using the design concept shall fall within the scope of the present utility model.

Claims (10)

1. The power-exchanging high-voltage box is characterized by comprising an upper cover plate, a bottom panel, a front panel, a rear panel, a left panel and a right panel, wherein a supporting frame used for supporting and reinforcing the box is arranged in the box, the supporting frame is divided into a first layer of frame and a second layer of frame from top to bottom, the first layer of frame is provided with a high-voltage power distribution unit, the second layer of frame is provided with a low-voltage management unit, a battery high-voltage input interface is arranged on the front panel, and a power-exchanging connector is arranged on the upper cover plate and electrically connected with the battery high-voltage input interface through the high-voltage power distribution unit.

2. The high-voltage power conversion box according to claim 1, wherein the high-voltage power distribution unit comprises copper bars, contactors and current sensors.

3. A power conversion high voltage cassette according to claim 1 wherein said low voltage management unit comprises a controller.

4. The power conversion high voltage box according to claim 1, wherein the power conversion connector is a charging, discharging and power conversion same-port power conversion connector.

5. The power conversion high voltage box according to claim 1, wherein the upper cover plate is provided with supporting reinforcing ribs for fixing the power conversion connector.

6. The power-exchanging high-voltage box of claim 1, wherein the rear panel and the bottom panel are of a hollow structure in the middle, and a rear access panel and a bottom access panel are respectively arranged at the hollow positions of the rear panel and the bottom panel.

7. The power exchanging high voltage box as claimed in claim 6, wherein sealing strips or sealing rings are arranged on the inner sides of the rear access panel and the bottom access panel.

8. The power conversion high-voltage box according to claim 1, wherein sealing strips are arranged on the inner sides of the upper cover plate and the bottom plate.

9. A power conversion high voltage box according to claim 3, wherein the left panel is provided with an internal communication interface, an antenna module and a wiring port, the internal communication interface is connected with the battery pack and the controller, and the wiring port is connected with the wiring ports of the controller and the antenna module respectively.

10. A power conversion high voltage box according to claim 3 wherein said right panel is provided with a debug port for debugging said controller, a breather valve and a PE interface.