A vehicle-mounted battery swapping pack

Abstract

This utility model provides a vehicle-mounted battery swapping pack, comprising: a battery pack frame divided into several strip-shaped cavities arranged along a central axis, the extension direction of the strip-shaped cavities being perpendicular to the central axis; two pairs of connecting lugs symmetrically positioned at both ends of the battery pack frame along the central axis; power batteries and at least one functional module are sequentially arranged from the first to the second end of the odd-numbered column of strip-shaped cavities; power batteries and at least one functional module are sequentially arranged from the second to the first end of the even-numbered column of strip-shaped cavities, with the center of symmetry between the power batteries in the odd-numbered columns and the adjacent power batteries in the even-numbered columns falling on the central axis; a power battery cooling air conditioner, a high-voltage junction box, a high-voltage terminal box, and a battery pack control box belonging to the functional modules are respectively connected to each power battery. The connection direction of this vehicle-mounted battery swapping pack can be interchanged, and the overall center of gravity is located on the central axis of the battery pack frame, ensuring that the battery pack remains balanced left and right even after blind insertion, which is beneficial to improving driving safety.

Description

Technical Field

[0001] This utility model relates to the field of energy storage and battery swapping, specifically to a vehicle-mounted battery swapping pack. Background Technology

[0002] With most automated container terminals in China now using pure electric container flatbed trucks as key equipment for transporting containers, the traditional charging mode has significant drawbacks.

[0003] 1. Low refueling efficiency: Container flatbed trucks generally require more than 2 hours to refuel.

[0004] 2. Low vehicle utilization: The vehicle cannot be driven while charging, which reduces the vehicle utilization rate.

[0005] To address these issues, some vehicles employ a battery swapping system. However, the battery packs required for pure electric container flatbed trucks are very large, with complex wiring. Specialized equipment is needed for hoisting, and blind insertion is not possible during the overall connection. Furthermore, the layout of the power battery pack is designed to match the functional modules, causing the overall center of gravity of the battery pack to be off-center. This can disrupt the vehicle's balance, especially during steering, and create safety hazards.

[0006] Therefore, this utility model provides a vehicle-mounted battery swapping pack. Utility Model Content

[0007] To address the problems in the existing technology, the purpose of this utility model is to provide a vehicle-mounted battery swapping pack that overcomes the difficulties of the existing technology. The connection direction can be interchanged, and the overall center of gravity is located on the central axis of the battery pack frame, ensuring that the battery pack is still evenly arranged from left to right after blind insertion, which is conducive to improving driving safety.

[0008] An embodiment of this utility model provides a vehicle-mounted battery swapping pack, comprising:

[0009] A battery pack frame is provided, the interior of which is divided into several strip-shaped cavities arranged along a central axis. The extension direction of the strip-shaped cavities is perpendicular to the central axis. A power battery and at least one functional module are sequentially arranged from the first end to the second end of the odd-numbered columns of the strip-shaped cavities. A power battery and at least one functional module are sequentially arranged from the second end to the first end of the even-numbered columns of the strip-shaped cavities. The center of symmetry between the first projection pattern of the power battery in the odd-numbered columns and the second projection pattern of the power battery in the adjacent even-numbered columns falls on the central axis. The functional module includes at least a power battery cooling air conditioner, a high-voltage junction box, a high-voltage terminal box, and a battery pack control box. The power battery cooling air conditioner, high-voltage junction box, high-voltage terminal box, and battery pack control box are respectively connected to each power battery.

[0010] Two pairs of connecting lugs are respectively disposed at both ends of the battery pack frame along the central axis, and the center of symmetry of the connecting lugs falls on the central axis; and

[0011] Two battery swapping plugs are respectively located at both ends of the battery pack frame along the central axis, and the center of symmetry of the battery swapping plugs falls on the central axis.

[0012] Preferably, the power battery cooling air conditioner is located at the first corner of the battery pack frame, and the battery pack control box is located at the second corner of the battery pack frame opposite to the first corner.

[0013] Preferably, it also includes a heater, which is disposed together with the power battery cooling air conditioner at the second end of the same strip cavity located in the odd-numbered column.

[0014] Preferably, it also includes a radiator and a fire extinguishing system, which are disposed together with the battery pack control box at the second end of the even-numbered strip cavity.

[0015] Preferably, the power battery also includes a length that is half the extended length of the strip-shaped cavity.

[0016] Preferably, the battery pack frame is a rectangular frame, and the outer surface of the rectangular frame is covered by an outer shell.

[0017] Preferably, it also includes several detachable top access doors, which are disposed on the top of the rectangular frame. When the top access doors are removed, the top surface of the functional module is exposed.

[0018] Preferably, it also includes several detachable side access doors, which are disposed on the side of the rectangular frame. When the side access doors are removed, the side of the functional module and the side of the power battery are exposed.

[0019] This utility model discloses a vehicle-mounted battery swapping pack with interchangeable connection directions. The overall center of gravity is located on the central axis of the battery pack frame, ensuring that the battery pack remains evenly arranged from left to right after blind insertion, which helps improve driving safety. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0021] Figure 1 This is a top view of a vehicle-mounted battery swapping pack according to the present invention.

[0022] Figure 2 This is a side view of a vehicle-mounted battery swapping pack according to the present invention.

[0023] Figure 3This is a perspective view of a vehicle-mounted battery swapping pack after the outer casing has been removed.

[0024] Figure 4 This is a side view of one side of a vehicle-mounted battery swapping pack after the outer casing has been removed, according to this utility model.

[0025] Figure 5 This is a side view of the vehicle-mounted battery swapping pack of this utility model after the outer casing has been removed.

[0026] Figure 6 This is a side view of a vehicle-mounted battery swapping pack after the outer casing has been removed.

[0027] Figure Labels

[0028] 1. Power Battery

[0029] 2. Power Battery Cooling Air Conditioner

[0030] 3 High-voltage junction box

[0031] 4. High-voltage junction box

[0032] 5 Battery Pack Control Box

[0033] 6 heaters

[0034] 7 Fire Extinguishing System

[0035] 8 Radiators

[0036] 9 Connecting ear loops

[0037] 10 Battery Pack Frame

[0038] 11. Top access door

[0039] 12 Side inspection doors

[0040] 13. Outer shell

[0041] 14. Battery swapping plug Detailed Implementation

[0042] 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.

[0043] 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Although the terms first, second, etc., are used in some instances herein to refer to various elements, 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 interpreted as inclusive, or mean any one or any combination thereof. Thus, “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.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0050] 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.

[0051] 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.

[0052] To overcome the problems of existing technologies where large battery packs in large electric vehicles such as pure electric container flatbed trucks require precise alignment and cannot be blindly inserted, resulting in a shift in the center of gravity and potential safety hazards, this utility model provides a vehicle-mounted battery swapping pack. The following is an appendix to the specification. Figures 1 to 6 Please provide an explanation. Figure 1 This is a top view of a vehicle-mounted battery swapping pack according to the present invention. Figure 2 This is a side view of a vehicle-mounted battery swapping pack according to the present invention. Figure 3 This is a perspective view of a vehicle-mounted battery swapping pack after the outer casing has been removed. Figure 4 This is a side view of one side of a vehicle-mounted battery swapping pack after the outer casing has been removed, according to this utility model. Figure 5This is a side view of the vehicle-mounted battery swapping pack of this utility model after the outer casing has been removed. Figure 6 This is a side view of a vehicle-mounted battery swapping pack of this utility model after the outer casing has been removed. Figures 1 to 6 As shown, the vehicle-mounted battery swapping pack of this utility model includes: a battery pack frame 10, two pairs of connecting lugs 9, and two battery swapping plugs 14. The interior of the battery pack frame 10 is divided into several strip-shaped cavities arranged along a central axis. The extension direction of the strip-shaped cavities is perpendicular to the central axis. A power battery 1 and at least one functional module are sequentially arranged from the first end to the second end of the odd-numbered strip-shaped cavities. A power battery 1 and at least one functional module are sequentially arranged from the second end to the first end of the even-numbered strip-shaped cavities. The center of symmetry between the first projection pattern of the power battery 1 in the odd-numbered strip-shaped cavities and the second projection pattern of the power battery 1 in the adjacent even-numbered strip-shaped cavities lies on the central axis. The functional modules include at least a power battery cooling air conditioner 2, a high-voltage junction box 3, a high-voltage terminal box 4, and a battery pack control box 5. The power battery cooling air conditioner 2, the high-voltage junction box 3, the high-voltage terminal box 4, and the battery pack control box 5 are respectively connected to each power battery 1. Two pairs of connecting lugs 9 are respectively located at both ends of the battery pack frame 10 along the central axis, and the center of symmetry of the connecting lugs 9 falls on the central axis. Two battery swapping plugs 14 are respectively located at both ends of the battery pack frame 10 along the central axis, and the center of symmetry of the battery swapping plugs 14 falls on the central axis.

[0053] In a preferred embodiment, the power battery cooling air conditioner 2 is located at the first corner of the battery pack frame 10, and the battery pack control box 5 is located at the second corner of the battery pack frame 10 opposite to the first corner, but is not limited thereto.

[0054] In a preferred embodiment, a heater 6 is also included, which is disposed together with the power battery cooling air conditioner 2 at the second end of the odd-numbered column-shaped cavity, but is not limited thereto.

[0055] In a preferred embodiment, a radiator 8 and a fire suppression system 7 are also included, which are disposed together with the battery pack control box 5 at the second end of the even-numbered strip-shaped cavity, but are not limited thereto.

[0056] In a preferred embodiment, the length of the power battery 1 is half the extension length of the strip cavity, but this is not a limitation.

[0057] In a preferred embodiment, the battery pack frame 10 is a rectangular frame, the outer surface of which is covered by the outer casing 13, but this is not a limitation.

[0058] In a preferred embodiment, a plurality of detachable top access doors 11 are also included, which are disposed on the top of the rectangular frame. The top access doors 11 are exposed after being removed, but this is not a limitation.

[0059] In a preferred embodiment, a plurality of detachable side access doors 12 are also included, which are disposed on the side of the rectangular frame. After the side access doors 12 are removed, the side of the functional module and the side of the power battery 1 are exposed, but this is not a limitation.

[0060] This battery swapping pack comprises a main structural frame, a power battery system, a power battery cooling system, a fire extinguishing system, a battery pack control system, and a battery self-balancing system. The battery pack frame 10 of this invention includes a frame, skin, inspection doors, and other components, serving as the carrier for each system within the battery pack. The power battery system of this invention mainly comprises a power battery 1, high and low voltage junction boxes, a BMS box, and high and low voltage wiring harnesses, making it the most important component of the battery swapping pack and the part that stores electrical energy. The power battery cooling system of this invention is a device for dissipating heat and heating the battery pack, comprising a power battery cooling air conditioner 2, a heater 6, and piping, its main function being to maintain the battery pack at a suitable temperature for charging and discharging. The fire extinguishing system 7 of this invention primarily ensures safety; its main working principle is that after the system detects an abnormality in the battery pack, it releases extinguishing agent to extinguish initial fires, thereby ensuring the safety of the battery pack. The battery self-balancing system of this invention mainly addresses the problem of inaccurate State of Charge (SOC) after long-term use of the battery pack. Other components of this utility model mainly include a manual charging port, a battery swapping plug, and a display screen, which are auxiliary devices for the operation of the battery pack.

[0061] Using the battery pack of this invention for vehicle battery swapping has the following technical advantages:

[0062] (1) Fast vehicle recharge: When the pure electric container flatbed truck runs out of power, this battery pack can be replaced and the power can be replenished in 3-5 minutes.

[0063] (2) The power battery and other components in the battery pack adopt a balanced arrangement scheme, which can effectively alleviate local stress concentration and structural fatigue effect, and there is no off-center load problem. It also effectively improves the overall structural strength and durability of the battery pack.

[0064] (3) The battery box cabinet has doors on both sides, allowing for battery installation or maintenance. This makes it more maintainable than existing battery pack layouts.

[0065] (4) Good battery pack adaptability: The battery pack adopts a centrally symmetrical arrangement with a power swap plug at both the front and back. The battery pack can be used normally in both directions, making it highly adaptable.

[0066] The implementation process of this utility model is as follows:

[0067] The present invention relates to a vehicle-mounted battery swapping pack, comprising: a battery pack frame 10, two pairs of connecting lugs 9, and two battery swapping plugs 14. The interior of the battery pack frame 10 is divided into several strip-shaped cavities arranged along the central axis L. The extension direction of the strip-shaped cavities is perpendicular to the central axis L. A power battery 1 and at least one functional module are sequentially arranged from the first end to the second end of the odd-numbered strip-shaped cavities. A power battery 1 and at least one functional module are sequentially arranged from the second end to the first end of the even-numbered strip-shaped cavities. The center of symmetry (projected at point P) of the first projection pattern of the power battery 1 in the odd-numbered strip-shaped cavities and the second projection pattern of the power battery 1 in the adjacent even-numbered strip-shaped cavities on the horizontal plane falls on the central axis L. The functional modules include at least a power battery cooling air conditioner 2, a high-voltage junction box 3, a high-voltage terminal box 4, and a battery pack control box 5. The power battery cooling air conditioner 2, the high-voltage junction box 3, the high-voltage terminal box 4, and the battery pack control box 5 are respectively connected to each power battery 1. Two pairs of connecting lugs 9 are respectively located at both ends of the battery pack frame 10 along the central axis L, and the center of symmetry of the connecting lugs 9 (projected onto point P) falls on the central axis L. Two battery swapping plugs 14 are respectively located at both ends of the battery pack frame 10 along the central axis L, and the center of symmetry of the battery swapping plugs 14 (projected onto point P) falls on the central axis L. Point P can be located at the center of the central axis L, but is not limited to this.

[0068] In this invention, since both pairs of connecting lugs 9 and the battery swapping plug 14 are symmetrical about point P at the center, the battery pack has a blind-plugging effect. When docking with the charging position inside the electric vehicle, it can work normally regardless of whether the first end A of the battery pack frame 10 is connected to the first charging position of the vehicle body and the second end B is connected to the second charging position of the vehicle body; or whether the battery pack frame 10 is rotated so that the first end A is connected to the second charging position of the vehicle body and the second end B is connected to the first charging position of the vehicle body. Moreover, even when the battery pack frame 10 is rotated, since the power batteries 1, which are the main weight inside the battery pack, are arranged in an alternating row, the center of gravity of all the power batteries 1 will fall on the projection point P. This ensures that the overall center of gravity of the multiple power batteries 1 remains unchanged after rotating the battery pack frame 10, achieving a balanced arrangement of the battery pack and high stability.

[0069] The power battery cooling air conditioner 2 is located at the first corner of the battery pack frame 10, and the battery pack control box 5 is located at the second corner of the battery pack frame 10 opposite to the first corner. The heater 6 and the power battery cooling air conditioner 2 are jointly located at the second end of the odd-numbered column of the strip-shaped cavity. The radiator 8 and the fire extinguishing system 7 are jointly located at the second end of the even-numbered column of the strip-shaped cavity, along with the battery pack control box 5. The length of the power battery 1 is half the extended length of the strip-shaped cavity. The battery pack frame 10 is a rectangular frame, and its outer surface is covered by a housing 13. Several removable top access doors 11 are located at the top of the rectangular frame; when removed, the top surface of the functional modules is exposed. Several removable side access doors 12 are located on the sides of the rectangular frame; when removed, the sides of the functional modules and the power battery 1 are exposed for easy maintenance.

[0070] When swapping batteries using a battery swapping robot or forklift, the battery packs of this invention are evenly arranged based on the center position of the battery pack, resulting in a balanced overall weight. The center of the battery module coincides with the center of gravity of the volume, ensuring the balance of the battery pack during transportation. The battery swapping robot or forklift will not trigger a fault alarm due to imbalance, and the equipment can operate safely.

[0071] The vehicle-mounted battery swapping pack of this invention is installed in heavy vehicles (e.g., unmanned trucks). Since the center of the battery module coincides with the center of gravity of the volume, the inertial effect of the battery pack on the vehicle body is reduced when the heavy truck is in motion, which is beneficial to the stability of the whole vehicle during driving (especially when turning or braking).

[0072] The vehicle-mounted battery swapping pack of this utility model has the following technical advantages:

[0073] 1. Fast power replenishment: When the pure electric container flatbed truck runs out of power, this battery pack can be replaced and the power can be replenished in 3-5 minutes.

[0074] 2. The battery pack is evenly distributed, resulting in high stability.

[0075] 3. Good battery pack adaptability: This battery pack adopts a centrally symmetrical arrangement with replacement plugs at both the front and rear. The battery pack can be used normally in both directions, making it highly adaptable.

[0076] In summary, the purpose of this utility model is to provide a vehicle-mounted battery swapping pack with interchangeable connection directions and an overall center of gravity located on the central axis of the battery pack frame, ensuring that the battery pack remains evenly arranged from left to right after blind insertion, which is beneficial to improving driving safety.

[0077] 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 protection scope of the present invention.

Claims

1. A vehicle-mounted battery swapping pack, characterized in that, include: A battery pack frame (10) is provided. The interior of the battery pack frame (10) is divided into several strip-shaped cavities arranged along the central axis. The extension direction of the strip-shaped cavities is perpendicular to the central axis. A power battery (1) and at least one functional module are arranged sequentially from the first end to the second end of the strip-shaped cavities in the odd-numbered columns. A power battery (1) and at least one functional module are arranged sequentially from the second end to the first end of the strip-shaped cavities in the even-numbered columns. The center of symmetry between the first projection pattern of the power battery (1) in the odd-numbered columns and the second projection pattern of the power battery (1) in the even-numbered columns based on the horizontal plane falls on the central axis. The functional module includes at least a power battery cooling air conditioner (2), a high-voltage junction box (3), a high-voltage terminal box (4), and a battery pack control box (5). The power battery cooling air conditioner (2), the high-voltage junction box (3), the high-voltage terminal box (4), and the battery pack control box (5) are respectively connected to each power battery (1). Two pairs of connecting lugs (9) are respectively disposed at both ends of the battery pack frame (10) along the central axis, and the center of symmetry of the connecting lugs (9) lies on the central axis; and Two battery swapping plugs (14) are respectively located at both ends of the battery pack frame (10) along the central axis, and the center of symmetry of the battery swapping plugs (14) falls on the central axis.

2. The vehicle-mounted battery swapping pack as described in claim 1, characterized in that, The power battery cooling air conditioner (2) is located at the first corner of the battery pack frame (10), and the battery pack control box (5) is located at the second corner of the battery pack frame (10) opposite to the first corner.

3. The vehicle-mounted battery swapping pack as described in claim 2, characterized in that, It also includes a heater (6), which is located at the same second end of the strip cavity in the odd-numbered column, together with the power battery cooling air conditioner (2).

4. The vehicle-mounted battery swapping pack as described in claim 3, characterized in that, It also includes a radiator (8) and a fire extinguishing system (7), which are disposed together with the battery pack control box (5) at the second end of the even-numbered strip cavity.

5. The vehicle-mounted battery swapping pack as described in claim 1, characterized in that, It also includes a power battery (1) whose length is half the extension length of the strip cavity.

6. The vehicle-mounted battery swapping pack as described in claim 1, characterized in that, The battery pack frame (10) is a rectangular frame, and the outer surface of the rectangular frame is covered by the outer shell (13).

7. The vehicle-mounted battery swapping pack as described in claim 6, characterized in that, It also includes several detachable top access doors (11) located on the top of the rectangular frame. When the top access doors (11) are removed, the top surface of the functional module is exposed.

8. The vehicle-mounted battery swapping pack as described in claim 6, characterized in that, It also includes several detachable side access doors (12) located on the side of the rectangular frame. After the side access doors (12) are removed, the side of the functional module and the side of the power battery (1) are exposed.

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