CN221162686U - Trade electric base and trade electric system - Google Patents

Abstract

The embodiment of the application provides a power conversion base, which relates to the technical field of power conversion, and comprises the following components: a bottom plate, a back plate and two side plates; the bottom plate, the back plate and the two side plates are connected with each other and are enclosed to form an accommodating space for accommodating the battery box; the bottom plate is provided with first fastener towards the side of accommodation space to fix a position and fix the battery case. In the embodiment of the application, the bottom plate, the back plate and the two side plates are connected and enclosed to form the accommodating space for accommodating the battery box, the fasteners arranged on the bottom plate play a role in positioning and fixing the battery box during installation, the thickness of the bottom plate is smaller, and the structure is simple, so that the ground clearance of the power conversion system is increased, the trafficability of the whole vehicle is enhanced, the two side plates also play a role in limiting and protecting the battery box, and the reliability of the installation of the battery box and the base is enhanced.

Description

Trade electric base and trade electric system

Technical Field

The application belongs to the technical field of power conversion, and particularly relates to a power conversion base and a power conversion system.

Background

In recent years, with the rapid development of high-capacity power battery technology, electric trucks have also developed. At present, the power supply mode of the power battery of the electric truck mainly comprises two modes of charging and power changing, wherein the mode of supplying power to the electric truck by adopting the power changing mode is short in time, high in efficiency and high in utilization rate of the electric truck.

The power exchanging system of the power exchanging electric truck consists of a base and a battery box, wherein in the whole vehicle, the top of the battery box is provided with a vehicle body and a vehicle hopper. In the prior art, a battery box is placed on the upper part of a base and is fixed with the base through a locking structure, the locking structure is complex, and the occupied space in the height direction of a vehicle body is larger, so that the ground clearance of a power exchange system is smaller, and the trafficability of the whole vehicle is poorer; in addition, the locking structure is easy to damage when dealing with bumpy road conditions, and the reliability of the connection between the battery box and the base is easy to influence.

Disclosure of utility model

The application aims to provide a power conversion base and a power conversion system, which are used for solving the problem that the existing power conversion base occupies a large space along the height direction of a vehicle body and influences the trafficability of the whole vehicle.

In order to solve the technical problems, the application is realized as follows:

In a first aspect, the present application discloses a power conversion base, the power conversion base comprising: a bottom plate, a back plate and two side plates; wherein,

The backboard is fixedly connected to the bottom board, and the two side boards are arranged at intervals along the first direction and connected to the bottom board and the backboard to form an accommodating space for accommodating the battery box; the bottom plate is provided with first fastener towards the one side of accommodation space, first fastener is used for location and fixed the battery box.

The number of the first fasteners is multiple, and the first fasteners are arranged in an array along the first direction and the second direction, wherein the second direction is perpendicular to the first direction.

At least one side plate is provided with a hollowing part at one side far away from the bottom plate, and the hollowing part is used for providing avoidance space for the installation of the pluggable device.

Optionally, a mounting pad is further provided on a side of the bottom plate facing the receiving space, the mounting pad being adapted to cooperate with a bottom of the battery case.

Optionally, the number of the mounting pads is plural, and the plural mounting pads are arranged along the first direction and the second direction, wherein the second direction is perpendicular to the first direction.

Optionally, the electricity exchanging base further comprises a second fastening piece, wherein the back plate is provided with a mounting hole, and the second fastening piece penetrates through the mounting hole to enable the electricity exchanging base to be connected with the car body.

Optionally, the mounting hole is formed on the back plate body, or a connecting portion is arranged on one side of the back plate away from the accommodating space, and the mounting hole is formed on the connecting portion.

Optionally, the bottom plate is provided with a plurality of first lightening holes, and the plurality of first lightening holes are arranged along the first direction and the second direction, wherein the second direction is perpendicular to the first direction.

Optionally, a plurality of second lightening holes are formed in the back plate, and the plurality of second lightening holes are arranged in an array along the first direction and a third direction, wherein the third direction is perpendicular to the first direction.

In a second aspect, the present application also discloses a power conversion system, which includes: a battery box, a plug assembly, and a battery change base as described in any one of the above; wherein,

The battery box is placed in the accommodating space and is detachably connected to the bottom plate of the power conversion base through the fastener;

The plug assembly comprises two plug devices, one plug device is connected to the battery box, and the other plug device is connected to one side, away from the accommodating space, of one backboard.

In the embodiment of the application, the electricity conversion base is formed by connecting a bottom plate, a back plate and two side plates, and the battery box is placed in an accommodating space formed by enclosing the bottom plate, the back plate and the two side plates. The battery box is fixed by the fasteners arranged on the bottom plate, the thickness of the bottom plate is small, the structure is simple, the ground clearance of the battery replacing system is increased, the trafficability of the whole vehicle is enhanced, the two side plates also play a role in limiting and protecting the battery box, and the reliability of the battery box and the base installation is enhanced.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a power conversion base according to an embodiment of the present application;

FIG. 2 is a schematic view of another embodiment of the power conversion base structure according to the present application;

FIG. 3 is a schematic diagram of a second embodiment of a power conversion base according to the present application;

FIG. 4 is a schematic view of a power conversion base according to another embodiment of the present application;

FIG. 5 is a schematic diagram of a power conversion system according to an embodiment of the present application.

Reference numerals: 10-a bottom plate; 11-a first fastener; 12-mounting mat; 13-a first lightening hole; 20-a back plate; 21-mounting holes; 22-connecting part; 23-a second lightening hole; 30-side plates; 100-changing the electricity base; 200-a battery box; 300-plug assembly.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

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

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The embodiment of the application provides a power conversion base which can be used for an electric truck and is fixed on a vehicle-mounted main beam so as to provide an accommodating space for a battery box of the electric truck. The size of the base plate 10 of the power conversion base along the height direction of the vehicle body is smaller, so that the ground clearance of the power conversion system is increased, and the trafficability of the whole vehicle is enhanced; the two side plates 30 also play a role in limiting and protecting the battery box, and are beneficial to enhancing the reliability of the installation of the battery box and the base.

It should be noted that, in the embodiment of the present application, the first direction, the second direction, and the third direction are perpendicular to each other. Referring to fig. 1, a schematic diagram of a first direction, a second direction, and a third direction according to an embodiment of the present application is shown. The first direction is the x-axis direction shown in fig. 1, the second direction is the y-axis direction shown in fig. 1, and the third direction is the z-axis direction shown in fig. 1.

Referring to fig. 1, a schematic structural diagram of the power conversion base according to an embodiment of the present application is also shown. As shown in fig. 1, the power conversion base may specifically include: a bottom plate 10, a back plate 20, and two side plates 30; wherein,

The back plate 20 is fixedly connected to the bottom plate 10, and the two side plates 30 are arranged at intervals along the first direction x and connected to the bottom plate 10 and the back plate 20 to form an accommodating space for accommodating the battery box; the bottom plate 10 is provided at a side facing the receiving space with a first fastening member 11, and the first fastening member 11 is used to position and fix the battery box.

Specifically, the back plate 20 is fixedly connected to the bottom plate 10, and the back plate 20 is disposed perpendicular to the bottom plate 10; the two side plates 30 are disposed at intervals along the first direction x and connected to two ends of the bottom plate 10 along the first direction x, and two ends of the back plate 20 along the first direction x, and the two side plates 30 are perpendicular to the bottom plate 10 and the back plate 20. The bottom plate 10, the back plate 20, and the two side plates 30 are connected to each other and enclose a semi-open receiving space for placing the battery case. Because the accommodation space is semi-open, the battery box body is more convenient to detach and mount when the battery is replaced. The bottom plate 10, the back plate 20, and the two side plates 30 may be high-strength steel plates, and the bottom plate 10, the back plate 20, and the two side plates 30 are welded together to form a whole power conversion base.

Referring to fig. 2 to 3, schematic diagrams of a power conversion base according to another embodiment of the present application are shown. As shown in the figure, in another embodiment of the present application, the bottom plate 10 may be formed by welding steel plates and section steel, or by welding steel plates and steel pipes, and the structural configuration of the bottom plate 10 is not particularly limited in the present application. In specific application, the base plate 10 formed by welding steel plates and section steel or welding steel plates and steel pipes can reduce the overall weight of the power conversion base, and when the power conversion base is applied to a power conversion system of an electric truck, the overall weight of the electric truck can be reduced, so that the cruising duration of the electric truck is improved.

In the embodiment of the present application, the side of the bottom plate 10 facing the accommodating space is further provided with a first fastening member 11, and the first fastening member 11 may be a positioning pin. Alternatively, the first fastener 11 is fixedly coupled to the base plate 10 by a bolt, or welded to the base plate 10.

In a specific application, the bottom of the battery box is provided with a positioning hole matched with the first fastening piece 11, and the positioning and fixing of the battery box can be completed by positioning the battery box positioning hole at the position of the first fastening piece 11 and inserting the first fastening piece 11 into the battery box positioning hole, because the first fastening piece 11 is fixedly connected to the bottom plate 10 and the battery box is connected with the first fastening piece 11.

In the embodiment of the present application, the number of the first fasteners 11 is plural, and the plural first fasteners 11 are arranged in an array along the first direction x and the second direction y.

Specifically, on the base plate 10, four positioning pins are provided, and the four positioning pins are arranged in an array along the first direction x and the second direction y. The four positioning pin shafts are respectively composed of two coarse positioning pin shafts and two fine positioning pin shafts; the two rough positioning pins are used for preliminary positioning of the battery box, and in the power conversion process, preliminary guiding of the battery box in the installation stage is mainly achieved, and the clearance between the rough positioning pins and the installation shaft sleeve is large; after the battery box is initially positioned, the battery box can move along the first direction x or the second direction y due to the large gap between the rough positioning pin shaft and the shaft sleeve. The two fine positioning pins are used for further fastening the battery box with the preliminary positioning, and the coarse positioning pins are positioned in the early stage, and then the clearance between the fine positioning pins and the shaft sleeve is set to be small, so that the battery box has only the freedom degree of movement along the third direction z. In practical application, the pressing device is further arranged on the vehicle body, downward pressure is applied to the top of the battery box body to limit the movement of the battery box along the third direction z, and therefore the positioning and fixing of the battery box are completed.

In the embodiment of the present application, at least one side plate 30 is provided with a hollowed-out portion on a side far away from the bottom plate 10, specifically, the hollowed-out portion may be a through hole formed on the side plate 30, or the hollowed-out portion may be a portion of a plate body of the side plate 30 is cut. As shown in fig. 1, the hollowed-out portions are formed by cutting the plate bodies of the side plates 30 away from the bottom plate 10 and the back plate 20 on both side plates 30, and the remaining plate bodies are cut to form an L-like plate body structure. In practical applications, a hollowed-out portion may be disposed on one or both side plates 30, where the hollowed-out portion is used to provide an avoidance space for installation of the pluggable unit; meanwhile, the arrangement of the hollowed-out part reduces the overall weight of the battery replacing base while the side plate 30 meets the limiting and protecting effects on the battery box placed in the accommodating space.

In an embodiment of the application, a mounting pad 12 is also provided on the side of the base plate 10 facing the receiving space. Specifically, the size of the mounting pad 12 may be further determined based on the positional relationship and size of the components on the base plate 10.

Specifically, the mounting pad 12 is adapted to mate with the bottom of the battery case; when changing the electricity, because bottom plate 10 is steel sheet or shaped steel, the surface can exist certain degree unevenness, or stereoplasm arch for the battery box can not form good laminating with bottom plate 10 when placing in bottom plate 10, and the stereoplasm arch can also cause the damage to the battery box. In order to make the battery box fit to the base plate 10 more tightly, the base plate 10 needs to be machined by milling. The provision of the mounting pad 12 reduces the area of the machined surface and thus facilitates reduced tooling costs for the power conversion base.

In practical applications, the number of mounting mats 12 is plural, and the number of mounting mats 12 is not particularly limited in the present application, and the plural mounting mats 12 are arranged in an array along the first direction x and the second direction y.

It should be noted that the plurality of mounting pads 12 are arranged in an array along the first direction x and the second direction y and uniformly arranged in the middle and around the bottom plate 10, so that the connection between the battery box and the power conversion base can be more stable.

In the embodiment of the application, the electricity exchanging base further comprises a second fastening piece, the back plate 20 is provided with a mounting hole 21, and the second fastening piece penetrates through the mounting hole 21 to enable the electricity exchanging base to be connected with the vehicle body.

Specifically, the aperture of the mounting hole 21 is matched with the model of the second fastener, the mounting hole 21 is provided on the side of the back plate 20 away from the bottom plate 10, the plurality of mounting holes 21 are provided in an array in the first direction x and the third direction z, and on the back plate 20, a plurality of mounting hole 21 arrays are provided, and the plurality of mounting hole 21 arrays are provided at intervals in the first direction x. In practical applications, the mounting holes 21 are also required to be matched with the main beam structure of the vehicle body, so as to meet the requirement of reliable connection between the power conversion base and the vehicle body.

In the embodiment of the present application, the mounting hole 21 is formed on the body of the back plate 20. In practical application, the back plate 20 body can be a whole high-strength steel plate, and the mounting holes 21 are formed by punching holes in the high-strength steel plate, so that the mounting holes 21 are more convenient to process, and the processing time is shortened and the processing cost is saved.

Referring to fig. 4, a schematic diagram of a power conversion base according to still another embodiment of the present application is shown. In still another embodiment of the present application, as shown in fig. 4, a connection portion 22 is provided at a side of the back plate 20 away from the accommodating space, and the mounting hole 21 is opened on the connection portion 22. In practical application, the body of the back plate 20 may be a whole high-strength steel plate, the connecting portion 22 is formed by a reinforcing plate or a section steel welded on one side of the body of the back plate 20 far away from the accommodating space, the reinforcing plate or the section steel is provided with a mounting hole 21, and then the second fastener passes through the mounting hole 21 to realize connection between the electricity exchanging base and the vehicle body.

In the embodiment of the present application, the base plate 10 is provided with a plurality of first lightening holes 13, and the plurality of first lightening holes 13 are arranged in an array along the first direction x and the second direction y. The back plate 20 is provided with a plurality of second lightening holes 23, and the plurality of second lightening holes 23 are arranged in an array along the first direction x and the third direction z.

In practical application, the first lightening holes 13 and the second lightening holes 23 may be provided in any shape. Illustratively, as shown in fig. 1, the first lightening holes 13 and the second lightening holes 23 are arranged in a circular shape, the number of the first lightening holes 13 is 4, the 4 first lightening holes 13 are arranged in an array along the first direction x and the second direction y, the number of the second lightening holes 23 is also 4, and the 4 second lightening holes 23 are arranged in an array along the first direction x and the third direction z. In practical application, through the arrangement of the first lightening holes 13 and the second lightening holes 23, the whole weight of the power conversion base is reduced, and when the power conversion base is applied to a power conversion system of an electric truck, the whole weight of the electric truck can be reduced, so that the endurance of the electric truck is improved.

The embodiment of the application provides a power conversion system, which can include the power conversion base 100, and can be applied to an electric heavy card or an electric light card.

Referring to fig. 5, a power conversion system according to an embodiment of the present application is shown. As shown in the figure, the power conversion system may specifically include: battery box 200, plug assembly 300, and battery change base 100 as described above; wherein,

The battery box 200 is placed in the receiving space and detachably connected to the bottom plate 10 of the battery-exchanging base 100 by fasteners;

The plug assembly 300 includes two plug-ins, one plug-in is connected to the battery box 200, and the other plug-in is connected to one side of one of the back plates 20 away from the receiving space.

Specifically, the plug-in devices are the hydro-electric connectors of the battery box 200, and the two plug-in devices are respectively provided with a male head and a female head, so that the male head and the female head are connected to realize the electric connection of the two plug-in devices. In practical applications, when the battery box 200 is connected to the power conversion base 100, two plug-in devices may be respectively disposed on any side of the power conversion system along the first direction x, and the two plug-in devices are electrically connected. Preferably, the two plug-ins may be arranged on the same side of the power exchanging system in the first direction x, which facilitates the connection between the male and female heads of the two plug-ins.

In the power conversion system according to the embodiment of the present application, since the power conversion base 100 is included, all advantages of the power conversion base 100 are provided, and are not described herein.

In summary, in the embodiment of the present application, the power conversion base is formed by connecting a bottom plate, a back plate and two side plates, and the battery box is placed in an accommodating space formed by enclosing the bottom plate, the back plate and the two side plates. The battery box is positioned and fixed by the fasteners arranged on the bottom plate, the thickness of the bottom plate is smaller, and the structure is simple, so that the ground clearance of the battery replacement system is increased, and the trafficability of the whole vehicle is enhanced; the two side plates also play a role in limiting and protecting the battery box, and are beneficial to enhancing the reliability of the installation of the battery box and the base.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A power conversion base, characterized in that the power conversion base comprises: a bottom plate, a back plate and two side plates; wherein,

The backboard is fixedly connected to the bottom board, and the two side boards are arranged at intervals along the first direction and connected to the bottom board and the backboard to form an accommodating space for accommodating the battery box; the bottom plate is provided with first fastener towards the one side of accommodation space, first fastener is used for location and fixed the battery box.

2. The electrical replacement base of claim 1 wherein the number of first fasteners is a plurality, the plurality of first fasteners being arranged in an array along the first direction and a second direction, wherein the second direction is perpendicular to the first direction.

3. The power conversion chassis of claim 1, wherein at least one of the side plates is provided with a cutout on a side remote from the bottom plate, the cutout providing a relief space for installation of the plug.

4. The battery exchange base of claim 1, wherein a mounting pad is further provided on a side of the bottom plate facing the receiving space, the mounting pad being adapted to mate with a bottom of a battery case.

5. The power conversion chassis of claim 4, wherein the number of mounting pads is a plurality, the plurality of mounting pads being arranged in an array along the first direction and a second direction, wherein the second direction is perpendicular to the first direction.

6. The power conversion base of claim 1, further comprising a second fastener provided with a mounting hole in the back plate, the second fastener passing through the mounting hole to connect the power conversion base to a vehicle body.

7. The power conversion base according to claim 6, wherein the mounting hole is formed in the back plate body, or a connection portion is provided on a side of the back plate away from the accommodating space, and the mounting hole is formed in the connection portion.

8. The power conversion chassis of claim 1, wherein the bottom plate is provided with a plurality of first lightening holes, and the plurality of first lightening holes are arranged in an array along the first direction and a second direction, wherein the second direction is perpendicular to the first direction.

9. The power conversion chassis of claim 1, wherein the back plate is provided with a plurality of second lightening holes, and the plurality of second lightening holes are arranged along the first direction and a third direction array, wherein the third direction is perpendicular to the first direction.

10. A power conversion system, the power conversion system comprising: battery compartment, plug assembly, and power conversion base according to any one of claims 1 to 9; wherein,

The battery box is placed in the accommodating space and is detachably connected to the bottom plate of the electricity changing base through the first fastening piece;

The plug assembly comprises two plug devices, one plug device is connected to the battery box, and the other plug device is connected to one side, away from the accommodating space, of one backboard.