Changeable battery pack for container truck and method for changing battery pack

Abstract

The application provides a truck battery pack and a battery replacement method thereof, which comprises: a battery pack framework, an internal space defined by the battery pack framework is divided into an upper layer and a lower layer; a first space area for accommodating a high-voltage junction box, a second space area for accommodating a high-voltage control box and a third space area for accommodating an air conditioner compressor are arranged in the lower layer; a battery pack is arranged in the upper layer of the battery pack framework in a matrix manner, a water cooling pipeline of the air conditioner compressor is connected with the battery pack, and coolant flows out from the air conditioner compressor, passes through a path in a counter-gravity direction and reaches the battery pack in the battery pack; and a water cooling water supplement tank is arranged on one side of the battery pack with the highest position in the battery pack, and the water cooling water supplement tank is connected with the battery pack and the air conditioner compressor. The application can greatly reduce the height and overall volume of the battery pack, thereby reducing the collision between the battery pack and the battery compartment when the side-mounted electric vehicle is replaced with a battery, and improving the safety and efficiency of replacing the battery.

Description

Technical Field

[0001] This invention relates to the field of vehicle battery swapping, and more particularly to a battery swapping pack for trucks and a battery swapping method thereof. Background Technology

[0002] Currently, although new energy vehicles have entered a relatively mature stage of development, compared with traditional fuel vehicles, due to their shorter start-up time, consumers pay particular attention to the stability of the three-electric system (battery, motor, and electronic control system) of pure electric vehicles during use. The power battery, in particular, is the core lifeline of new energy vehicles.

[0003] In new energy battery swapping station systems for heavy-duty trucks, the battery pack, as the energy transfer unit, has a crucial structural layout design. Existing battery packs often use a top-mounted water-cooling system for the air conditioning unit, resulting in a higher water tank (there is a certain height difference between the water tank and the air conditioning unit). The placement of both the water tank and the air conditioning unit increases the overall height of the battery pack, making it relatively tall. Furthermore, the guiding mechanism is complex when interacting with the vehicle-mounted base. Thirdly, most battery packs are top-mounted, and because of this, the height of the battery itself is not very sensitive. These existing structural features make it difficult to reduce the overall height of the battery pack.

[0004] Therefore, when the method of battery use needs to be improved, such as when the battery pack needs to be mounted on the side, an excessively high battery pack will significantly affect the installation accuracy, causing the battery pack to collide with the battery compartment and creating safety hazards.

[0005] In view of this, the present invention provides a battery pack for truck swapping and a swapping method thereof.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To address the problems in the prior art, the present invention aims to provide a battery pack for trucks and a battery swapping method thereof, which overcomes the difficulties of the prior art. Through innovative internal layout, the overall volume of the battery pack, especially its height, can be greatly reduced, thereby reducing the collision between the battery pack and the battery compartment when the battery is swapped in a side-mounted electric vehicle, and improving the safety and efficiency of battery swapping.

[0008] An embodiment of the present invention provides a battery pack for swapping batteries on trucks, comprising:

[0009] A battery pack frame, wherein the internal space defined by the battery pack frame is divided into an upper layer and a lower layer;

[0010] A first space area accommodating a high-voltage junction box, a second space area accommodating a high-voltage control box, and a third space area accommodating an air conditioning compressor are arranged in the lower layer.

[0011] A battery pack, arranged in a matrix on the upper layer of the battery pack frame, is connected to the battery pack via the water-cooled piping of the air conditioning compressor. Refrigerant flows from the air conditioning compressor and travels against gravity to reach the battery pack within the battery pack.

[0012] A water-cooled water supply tank is located on one side of the highest battery pack in the battery pack, and the water-cooled water supply tank is connected to the battery pack and the air conditioning compressor.

[0013] Preferably, it further includes:

[0014] At least one first battery swapping connector is disposed at the bottom of the second spatial region, and the first battery swapping connector is electrically connected to the high-voltage control box.

[0015] Preferably, the high-voltage control box is electrically connected to the high-voltage junction box, and the high-voltage junction box is electrically connected to the battery pack.

[0016] Preferably, the compressor further includes a horizontal compressor, wherein the rotation shaft of the motor in the horizontal compressor is parallel to the length direction of the truck.

[0017] Preferably, the high-voltage junction box, the high-voltage control box, and the air conditioning compressor are arranged sequentially along the width direction of the truck in the lower layer, and the projection patterns of the high-voltage junction box, the high-voltage control box, and the air conditioning compressor based on a vertical plane perpendicular to the width direction of the truck at least partially overlap each other.

[0018] Preferably, the water-cooling pipes of battery packs in the same row in the battery pack form a series pipe, and the water-cooling pipes of battery packs in different rows in the battery pack form a parallel pipe. The high-voltage junction box, the high-voltage control box and the air conditioning compressor are all at the same height.

[0019] Preferably, the battery pack frame is provided with intersecting main beams, either laterally or longitudinally;

[0020] At least one battery pack ear plate extends from both sides of the battery pack frame at the intersection of the transverse main beam and the longitudinal main beam in a direction away from the internal space.

[0021] Preferably, several intersecting diagonal reinforcement bars are provided between the main beams.

[0022] An embodiment of the present invention provides a battery swapping method for a container truck using a battery swapping pack, comprising the following steps:

[0023] The battery pack body is inserted into the battery compartment of the truck along the width direction of the truck.

[0024] When the battery pack body reaches above the battery docking position in the battery compartment, the battery pack body is lowered to allow the battery pack body to be mechanically aligned and electrically connected with the battery docking position.

[0025] Preferably, the method includes: the battery docking position of the truck is provided with at least two guide brackets and a second battery swapping connector, and the positioning hole of the battery pack frame of the battery pack body is vertically inserted into the guide bracket to guide the first battery swapping connector and the second battery swapping connector to dock vertically.

[0026] The battery pack and battery swapping method for trucks of the present invention can greatly reduce the overall volume of the battery pack, especially its height, through an innovative internal layout. This reduces the collision between the battery pack and the battery compartment when the battery is swapped in a side-mounted electric vehicle, thereby improving the safety and efficiency of battery swapping. Attached Figure Description

[0027] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0028] Figure 1 This is a perspective view of the battery pack for truck swapping according to the present invention.

[0029] Figure 2 This is a front view of the truck battery swapping pack of the present invention.

[0030] Figure 3 This is a side view of the truck battery swapping pack of the present invention.

[0031] Figure 4 This is a perspective view of the connection between the truck battery pack and the truck according to the present invention.

[0032] Figure 5 This is a front view of the connection between the truck battery pack and the truck according to the present invention.

[0033] Figure 6 yes Figure 7 Cross-sectional view along the AA direction.

[0034] Figure 7 This is a side view of the connection between the truck battery pack and the truck according to the present invention.

[0035] Figure 8 This is a flowchart of the battery swapping method for truck batteries according to the present invention.

[0036] Figures 9 to 10 This is a schematic diagram illustrating the implementation process of the battery pack swapping method for trucks according to the present invention.

[0037] Figure Labels

[0038] 1 Battery Pack

[0039] 11 Main Beam

[0040] 12 Battery Pack Earplates

[0041] 13 Battery pack frame

[0042] 14 Cross diagonal bars

[0043] 15 First Space Region

[0044] 16 Second Space Region

[0045] 17 Third Space Region

[0046] 18. Fourth Space Region

[0047] 21 Air Conditioner Compressor

[0048] 22 Water-cooled water supply tank

[0049] 23 First battery swapping connector

[0050] 24 High-voltage junction box

[0051] 25 battery packs

[0052] 26 High-voltage control box

[0053] 3. Vehicle-mounted chassis

[0054] 31 Second battery swapping connector

[0055] 32 Guide Bracket

[0056] 4-unit truck Detailed Implementation

[0057] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand the other advantages and effects of this application from the content disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0058] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0059] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0060] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] For the purpose of clearly describing this application, devices that are not relevant to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0062] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0063] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0064] While the terms first, second, etc., are used in some instances to denote various elements in this invention, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of features, steps, operations, elements, components, items, kinds, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are to be interpreted inclusively, or mean any one or any combination thereof. Therefore, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” An exception to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0065] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0066] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the content of this present application, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0067] Figure 1 This is a perspective view of the battery pack for truck swapping according to the present invention. Figure 2 This is a front view of the truck battery swapping pack of the present invention. Figure 3 This is a side view of the truck battery swapping pack of the present invention. Figure 4 This is a perspective view of the connection between the truck battery pack and the truck according to the present invention. Figure 5 This is a front view of the connection between the truck battery pack and the truck according to the present invention. Figure 6 yes Figure 7 Cross-sectional view along the AA direction. Figure 7 This is a side view of the connection between the truck battery pack and the truck according to the present invention. Figures 1 to 7 As shown, the battery pack body 1 of the truck battery swapping battery pack of the present invention includes:

[0068] A battery pack frame 13, the internal space defined by the battery pack frame 13 is divided into an upper layer and a lower layer.

[0069] A first spatial region 15 accommodating a high-voltage junction box 24, a second spatial region 16 accommodating a high-voltage control box 26, and a third spatial region 17 accommodating an air conditioning compressor 21 are arranged in the lower layer.

[0070] A battery pack is arranged in a matrix on the upper layer of the battery pack frame 13. The water cooling pipe of the air conditioning compressor 21 is connected to the battery pack. The refrigerant flows out of the air conditioning compressor 21 and travels in the anti-gravity direction to reach the battery pack in the battery pack.

[0071] A water-cooled water supply tank 22 is located on one side of the highest battery pack in the battery pack. The water-cooled water supply tank 22 is connected to the battery pack and the air conditioning compressor 21.

[0072] In a preferred embodiment, it further includes:

[0073] At least one first power swapping connector 23 is disposed at the bottom of the second space region 16. The first power swapping connector 23 is electrically connected to the high-voltage control box 26, but is not limited thereto.

[0074] In a preferred embodiment, the high-voltage control box 26 is electrically connected to the high-voltage junction box 24, and the high-voltage junction box 24 is electrically connected to the battery pack, but this is not a limitation.

[0075] In a preferred embodiment, the air conditioning compressor 21 is a horizontal compressor, wherein the rotation axis of the motor in the horizontal compressor is parallel to the length direction of the truck, but is not limited thereto.

[0076] In a preferred embodiment, the high-voltage junction box 24, the high-voltage control box 26, and the air conditioning compressor 21 are arranged sequentially along the width direction of the truck in the lower layer.

[0077] In a preferred embodiment, the projection patterns of the high-voltage junction box 24, the high-voltage control box 26, and the air conditioning compressor 21 respectively overlap at least partially based on the projection patterns of a vertical plane perpendicular to the width direction of the truck. However, this is not a limitation.

[0078] In a preferred embodiment, the water-cooling pipes of battery packs in the same row in the battery pack form a series pipe, and the water-cooling pipes of battery packs in different rows in the battery pack form a parallel pipe. The high-voltage junction box 24, the high-voltage control box 26 and the air conditioning compressor 21 are all the same height, but are not limited thereto.

[0079] In a preferred embodiment, the battery pack frame 13 is provided with intersecting main beams 11, either laterally or longitudinally.

[0080] On both sides of the battery pack frame 13, at least one battery pack ear plate 12 extends out in a direction away from the internal space at the intersection of the transverse main beam 11 and the longitudinal main beam 11, but is not limited thereto.

[0081] In a preferred embodiment, a plurality of intersecting diagonal reinforcement bars 14 are provided between the main beams 11, but this is not a limitation.

[0082] The specific embodiments of the present invention are as follows:

[0083] See Figures 1 to 7 As shown, the battery pack body 1 of the truck battery swapping battery pack of the present invention includes: a battery pack frame 13, a first battery swapping connector 23, a high-voltage junction box 24, a high-voltage control box 26, an air conditioning compressor 21, a battery pack, and a water-cooled water supply tank 22. Wherein, the X direction is the length direction of the truck, the Y direction is the width direction of the truck, and the Z direction is the height direction of the truck. Intersecting main beams 11, either transversely or longitudinally, are provided between the battery pack frames 13 to further enhance the load-bearing capacity of the battery pack frames 13. At least one battery pack ear plate 12 extends from both sides of the battery pack frame 13 at the intersection of the transverse and longitudinal main beams 11 in a direction away from the internal space. The subsequent battery swapping robot uses the battery pack ear plates 12 to transport the battery pack body 1. The inner side of the battery pack frame 13 also has several through holes for mechanical alignment with the guide brackets 32 of the battery compartment in the truck. Furthermore, several intersecting diagonal ribs 14 are provided between the main beams 11 to further strengthen the load-bearing capacity of the battery pack frame 13. The internal space defined by the battery pack frame 13 is divided into upper and lower layers. The battery packs are arranged in a matrix on the upper layer of the battery pack frame 13. The water-cooled pipes of the air conditioning compressor 21 are connected to the battery packs. The refrigerant flows out of the air conditioning compressor 21 and travels in the anti-gravity direction to reach the battery packs in the battery pack. The air conditioning compressor 21 is a horizontal compressor, and the rotation axis of the motor in the horizontal compressor is parallel to the length direction of the truck. The water-cooled pipes of the battery packs in the same row form a series pipe, and the water-cooled pipes of the battery packs in different rows form a parallel pipe. The high-voltage junction box 24, the high-voltage control box 26, and the air conditioning compressor 21 are all at the same height. The first space area 15 that accommodates the high-voltage junction box 24, the second space area 16 that accommodates the high-voltage control box 26, and the third space area 17 that accommodates the air conditioning compressor 21 are arranged sequentially along the width direction (Y direction) of the truck in the lower layer. A water-cooled water supply tank 22 is located on one side of the highest battery pack in the battery pack, and the water-cooled water supply tank 22 connects the battery pack and the air conditioning compressor 21. A first battery swapping connector 23 is located at the bottom of the second space area 16, and the first battery swapping connector 23 is electrically connected to the high-voltage control box 26. The battery pack in the main body 1 supplies power to the truck through the first battery swapping connector 23. The high-voltage control box 26 is electrically connected to the high-voltage junction box 24, and the high-voltage junction box 24 is electrically connected to the battery pack.

[0084] This invention essentially divides the internal space of the battery pack frame 13 into an upper layer to accommodate the battery pack and a lower layer to provide different functions. In the lower layer, the high-voltage junction box 24, high-voltage control box 26, and air conditioning compressor 21 are arranged along the width direction (Y direction) of the truck, allowing them to overlap as much as possible in the Y direction. This reduces the lateral height and width of the battery pack, thus minimizing its overall lateral projected area. As a result, the truck can use less space to install and replace the battery pack, breaking through the inherent structure of existing battery pack designs. In particular, it reduces collisions between the battery pack and the battery compartment during battery replacement in side-mounted electric vehicles, improving the safety and efficiency of battery replacement.

[0085] Figure 8 This is a flowchart of the battery swapping method for truck batteries according to the present invention. Figures 9 to 10 This is a schematic diagram illustrating the implementation process of the battery pack swapping method for trucks according to the present invention. (See diagram below.) Figure 8 As shown, a battery swapping method for a truck battery swapping pack according to the present invention, using the above-mentioned truck battery swapping pack, includes the following steps:

[0086] S110, the battery swapping robot 2 uses the battery pack ear plates 12 supporting both sides of the battery pack body 1 to insert the battery pack body 1 into the battery compartment of the truck 4 along the width direction (Y direction) of the truck 4 (see...). Figure 9 ).

[0087] S120. When the battery pack body 1 reaches above the battery docking position in the battery compartment, lower the battery pack body 1 to mechanically align and electrically connect it with the battery docking position. (See...) Figure 10 The battery docking position of the truck 4 is provided with at least two guide brackets 32 and a second battery swapping connector 31. The positioning hole of the battery pack frame 13 of the battery pack body 1 is vertically inserted into the guide bracket 32 ​​to guide the first battery swapping connector 23 and the second battery swapping connector 31 to dock vertically.

[0088] In summary, the battery pack and battery swapping method for trucks of the present invention can greatly reduce the overall volume of the battery pack, especially its height, through innovative internal layout. This reduces the collision between the battery pack and the battery compartment when the battery is swapped in a side-mounted electric vehicle, thereby improving the safety and efficiency of battery swapping.

[0089] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A battery pack for swapping batteries on trucks, characterized in that, The battery pack body (1) includes: A battery pack frame (13) is provided, wherein the internal space defined by the battery pack frame (13) is divided into an upper layer and a lower layer; A first space region (15) accommodating a high-voltage junction box (24), a second space region (16) accommodating a high-voltage control box (26) and a third space region (17) accommodating an air conditioning compressor (21) are arranged in the lower layer; A battery pack is arranged in a matrix on the upper layer of the battery pack frame (13). The water-cooled pipes of the air conditioning compressor (21) are connected to the battery pack. The refrigerant flows out of the air conditioning compressor (21) and travels in the anti-gravity direction to reach the battery pack in the battery pack; and A water-cooled water supply tank (22) is located on one side of the highest battery pack in the battery pack. The water-cooled water supply tank (22) is connected to the battery pack and the air conditioning compressor (21). At least one first battery swapping connector (23) is disposed at the bottom of the second space region (16), the first battery swapping connector (23) is electrically connected to the high voltage control box (26), the high voltage junction box (24), the high voltage control box (26) and the air conditioning compressor (21) are arranged sequentially in the lower layer along the width direction of the truck, and the projection patterns of the high voltage junction box (24), the high voltage control box (26) and the air conditioning compressor (21) respectively based on the vertical plane perpendicular to the width direction of the truck at least partially overlap each other.

2. The truck battery swapping pack according to claim 1, characterized in that, The high-voltage control box (26) is electrically connected to the high-voltage junction box (24), and the high-voltage junction box (24) is electrically connected to the battery pack.

3. The truck battery swapping pack according to claim 1, characterized in that, Also includes: The air conditioning compressor (21) is a horizontal compressor, and the rotating shaft of the motor in the horizontal compressor is parallel to the length direction of the truck.

4. The truck battery swapping pack according to claim 1, characterized in that, The water-cooling pipes of the battery packs in the same row in the battery pack form a series pipe, and the water-cooling pipes of the battery packs in different rows in the battery pack form a parallel pipe. The high-voltage junction box (24), the high-voltage control box (26) and the air conditioning compressor (21) are all the same height.

5. The truck battery swapping pack according to claim 1, characterized in that, The battery pack frame (13) is provided with intersecting main beams (11) in the horizontal and vertical directions. On both sides of the battery pack frame (13), at the intersection of the transverse main beam (11) and the longitudinal main beam (11), at least one battery pack ear plate (12) extends in a direction away from the internal space.

6. The truck battery swapping pack according to claim 5, characterized in that, Several intersecting diagonal bars (14) are provided between the main beams (11).

7. A battery swapping method for a truck battery pack, characterized in that, The method of using the truck battery swapping pack as described in any one of claims 1 to 6 includes the following steps: The battery pack body (1) is inserted into the battery compartment of the truck along the width direction of the truck. When the battery pack body (1) reaches above the battery docking position in the battery compartment, the battery pack body (1) is lowered down, so that the battery pack body (1) is mechanically aligned and electrically connected with the battery docking position.

8. The battery swapping method for truck battery packs according to claim 7, characterized in that, include: The battery docking position of the truck is provided with at least two guide brackets (32) and a second battery swapping connector (31). The positioning hole of the battery pack frame (13) of the battery pack body (1) is vertically inserted into the guide bracket (32) to guide the first battery swapping connector (23) and the second battery swapping connector (31) to dock vertically.

Images