Battery box for battery replacement heavy truck

Abstract

The utility model provides a battery box for a battery replacement heavy truck, which comprises a box body, a fixed frame, a hoisting beam and a safety protection switch arranged at the bottom of the hoisting beam, when the battery box is replaced, an external hoisting device clamps the bottom of the hoisting beam, the battery box is hoisted, and the safety protection switch is arranged at the bottom of the hoisting beam. The hoisting beam is arranged in the box body, and pressure is applied to the safety protection switch arranged at the bottom of the hoisting beam, so that the safety protection switch is pressed down under stress, external power supply of the battery module in the box body is forcibly cut off, power supply of the battery module is directly cut off in a physical mode, and the risk of protection failure caused by software vulnerabilities or faults is greatly reduced; and the risk that the battery replacing heavy truck is powered on accidentally when the external hoisting device is not completely loosened is avoided, so that potential safety hazards caused by mistaken starting of the battery replacing heavy truck are prevented, safety accidents caused by dragging the external hoisting device are avoided, and the structure and equipment safety of the battery replacing station is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery replacement heavy truck, especially to a battery box for battery replacement heavy truck. BACKGROUND

[0002] With the rapid development of new energy vehicle technology, battery replacement heavy truck gradually becomes an important force in the field of logistics transportation with its efficient and environmentally friendly characteristics. Battery replacement heavy truck significantly shortens the energy supply time of the vehicle by quickly replacing the battery pack, improves the operation efficiency, and is especially suitable for long-distance transportation and logistics distribution scenarios that require high endurance and rapid energy supply.

[0003] However, during the battery replacement process, the safety problem of battery replacement heavy truck becomes a key point that cannot be ignored. Especially at the critical moment when the battery replacement operation has not been completed and the new battery has just been installed on the vehicle, but the battery replacement spreader has not left the battery or the vehicle, if the vehicle is mistakenly started, it will cause extremely serious safety hazards. Since the battery replacement spreader is still connected to the battery and is usually connected to the fixing device of the battery replacement station, if the vehicle starts and tries to move at this time, it is easy to drag the spreader, which not only may cause damage to the spreader, but also may cause damage to the structure of the battery replacement station, and even cause more serious safety accidents such as equipment damage and personnel injury.

[0004] Currently, in view of this safety hazard, the general practice in the current industry is to use software to protect safety. For example, during the battery replacement process, the vehicle is prohibited from starting by the control system to prevent the vehicle from starting. This software protection method reduces the safety risk to a certain extent, but its reliability is limited by the stability and perfection of the software system. Once the software has a bug or a fault (so-called "bug"), or the software protection fails due to other unknown factors, the protection function may completely fail, causing the vehicle to be successfully started without completing the battery replacement, and thus causing the above-mentioned safety risks. Secondly, the software protection method often relies on complex algorithms and logical judgments, which increases the complexity and maintenance cost of the system to a certain extent. Finally, the protection effect of the software protection method may be greatly reduced when facing malicious attacks or human errors.

[0005] Therefore, although the existing software protection method improves the safety of the battery replacement process to a certain extent, its inherent limitations and potential risks cannot be ignored. In order to further improve the safety of battery replacement heavy truck, it is necessary to explore more reliable and comprehensive safety protection measures to ensure that the vehicle cannot be mistakenly started during the battery replacement process, so as to effectively avoid possible safety accidents. UTILITY MODEL CONTENT

[0006] In view of the above prior art defects, the technical problem to be solved by the utility model is to provide a battery box for a battery replacement heavy truck, to solve the technical problem of safety hazards caused by misstart during the battery replacement process of the existing battery replacement vehicle.

[0007] To achieve the above object, the utility model provides a battery box for a battery replacement heavy truck, an external hoisting device is used for replacing the battery box, and the battery box comprises:

[0008] A box body is internally provided with a battery module;

[0009] A fixed frame is internally provided with at least one mounting inner cavity, and the mounting inner cavity is used for mounting the box body;

[0010] A hoisting beam is arranged above the fixed frame and is used for hoisting and replacing the battery box;

[0011] A safety protection switch is arranged at the bottom of the hoisting beam, is electrically connected with the battery module, and is pressed down under force when the bottom of the hoisting beam is clamped by the external hoisting device, so as to cut off the external power supply of the battery module.

[0012] As a preferred mode, the hoisting beam comprises a first square frame and a plurality of support columns connecting the first square frame and the fixed frame; the first square frame comprises two hoisting arms and a plurality of connecting arms arranged between the two hoisting arms; and the safety protection switch is arranged at the bottom of one of the hoisting arms.

[0013] As a preferred mode, the bottom of one of the hoisting arms is provided with a fixing seat, and the safety protection switch is mounted at the bottom of one of the hoisting arms through the fixing seat.

[0014] As a preferred mode, the battery module comprises a plurality of batteries.

[0015] As a preferred mode, the safety protection switch is in the shape of a strip.

[0016] As a preferred mode, the fixed frame comprises oppositely arranged second square frames and connecting columns connecting the two second square frames; and the two second square frames are connected with the support columns respectively.

[0017] As a preferred mode, a heat dissipation frame is further included and is arranged below the fixed frame.

[0018] As a preferred mode, the heat dissipation frame is internally provided with a heat dissipation inner cavity, and a heat dissipation fan is arranged in the heat dissipation inner cavity.

[0019] As a preferred mode, the number of the heat dissipation fans is multiple.

[0020] As a preferred mode, the bottom of the mounting inner cavity is provided with a fixing structure, and the box body is mounted through the fixing structure.

[0021] As described above, the battery box for the battery swap heavy truck has the following beneficial effects:

[0022] The battery box for the battery swap heavy truck comprises a box body, a fixing frame, a hoisting beam and a safety protection switch arranged at the bottom of the hoisting beam. When the battery box is replaced, the external hoisting device clamps the bottom of the hoisting beam, the battery box is hoisted, and the safety protection switch arranged at the bottom of the hoisting beam is pressed to force the battery module in the box body to stop outputting externally, thereby prohibiting power supply. The battery module power supply is directly cut off by a physical method, and is not dependent on complex algorithms and logical judgments, and is not limited by software stability and perfection. The risk of protection failure caused by software vulnerabilities or faults is greatly reduced, and the risk of accidental power-on of the battery swap heavy truck when the external hoisting device is not completely loosened is avoided, thereby preventing the safety hazards caused by the accidental start of the battery swap heavy truck and avoiding the safety accidents caused by dragging the external hoisting device. Not only the structure and equipment safety of the battery swap station are protected, but also the life safety of the operator is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The structure of the battery box for the battery swap heavy truck is shown.

[0024] Figure 2 The structure of the external hoisting device is shown.

[0025] Element number explanation

[0026] 1 box body

[0027] 2 fixing frame

[0028] 21 mounting inner cavity

[0029] 22 second square

[0030] 23 connecting column

[0031] 3 hoisting beam

[0032] 31 first square

[0033] 311 hoisting arm

[0034] 312 connecting arm

[0035] 32 supporting column

[0036] 4 safety protection switch

[0037] 5 heat dissipation frame

[0038] 51 heat dissipation inner cavity

[0039] 6 external hoisting device

[0040] 61 grabbing clamp

[0041] 62 driving device

[0042] 63 support guide rail DETAILED DESCRIPTION

[0043] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification.

[0044] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the implementation conditions of the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. The following detailed description should not be considered as limiting, and the scope of the embodiments of the present application is only limited by the claims of the published patent. The terms used herein are only for describing specific embodiments, and are not intended to limit the present application. Spatially related terms, such as "upper", "lower", "left", "right", "below", "under", "lower", "above", "upper", etc. can be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing", "holding" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0046] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including" when used herein, specify the presence of stated features, operations, elements, components, items, and / or groups but do not preclude the presence or addition of one or more other features, operations, elements, components, items, and / or groups thereof. As used herein, the terms "or" and "and / or" are to be interpreted as inclusive, i.e., as meaning one or any combination of the items. Thus, "A, B or C" or "A, B and / or C" means any of the following: A; B; C; A and B; A and C; B and C; A, B and C. This definition applies only when an element, function or operation is in some way inherently mutually exclusive with another.

[0047] In order to make the purpose, technical scheme and advantages of the utility model clearer, specific embodiments of the utility model are described below in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the application.

[0048] As shown in Figure 1 The utility model provides a battery box for battery swap heavy truck, external hoisting device 6 is used to replace the battery box, the battery box includes:

[0049] Box 1, the box 1 is provided with battery module in;

[0050] Fixed frame 2, at least one installation inner cavity 21 is provided in the fixed frame 2, and the installation inner cavity 21 is used to install the box 1;

[0051] Hoisting beam 3, the hoisting beam 3 is arranged above the fixed frame 2 and is used for hoisting replacement of the battery box;

[0052] Safety protection switch 4, the safety protection switch 4 is arranged at the bottom of the hoisting beam 3 and is electrically connected with the battery module, and when the bottom of the hoisting beam 3 is clamped by the external hoisting device 6, the safety protection switch 4 is pressed under stress to cut off the external power supply of the battery module.

[0053] When the battery box is replaced, the bottom of the hoisting beam 3 is clamped by the external hoisting device 6, and the safety protection switch 4 arranged at the bottom of the hoisting beam 3 is pressed, so that the safety protection switch 4 is pressed, thereby cutting off the external power supply of the battery module.

[0054] The utility model discloses a battery box for battery swap heavy truck, including box 1, fixed frame 2, hoist beam 3 and the safety protection switch 4 of setting at the bottom of hoist beam 3, when replacing the battery box, the bottom of hoist beam 3 is clamped by the external hoisting device 6, the battery box is hoisted, and the safety protection switch 4 of setting at the bottom of hoist beam 3 is pressed, so that the safety protection switch 4 is forced to be pressed down, forcibly cut off the battery module in the box 1 and export to the outside, prohibit power supply, realize the direct cut-off of battery module power supply through physical mode, do not depend on complex algorithm and logic judgment, not by the limitation of software stability and perfect degree, greatly reduce the risk of protection failure caused by software vulnerability or failure, and avoid the risk of battery swap heavy truck accidental power-on when the external hoisting device 6 is not completely loosened, thereby prevent the security risk caused by battery swap heavy truck misoperation, and avoid the safety accident caused by dragging the external hoisting device 6, not only protect the structure and equipment safety of battery swap station, but also ensure the life safety of operating personnel.

[0055] In the embodiment, the materials of the hoist beam 3 and the safety protection switch 4 should be selected from high-strength and high-toughness materials to withstand the tension and pressure generated during hoisting, thereby preventing the safety protection switch 4 from being crushed.

[0056] In the embodiment, a buffer pad is arranged on the safety protection switch 4 to disperse and reduce the pressure at the contact surface.

[0057] In the embodiment, as shown in Figure 1 The fixed frame 2 is provided with at least one mounting cavity 21 for mounting the box 1, and the box 1 is provided with a battery module. The fixed frame 2 provides firm support and protection for the box 1, and the mounting cavities 21 can be customized according to the size and shape of the box 1 to maximize the use of space. Multiple mounting cavities 21 can achieve greater power storage.

[0058] In the embodiment, as shown in Figure 1 The hoist beam 3 includes a first square frame 31 and a plurality of support columns 32 connecting the first square frame 31 and the fixed frame 2; the first square frame 31 includes two hoist arms 311 and a plurality of connecting arms 312 arranged between the two hoist arms 311; and the safety protection switch 4 is arranged at the bottom of one of the hoist arms 311. Preferably, the bottom of one of the hoist arms 311 is provided with a groove, the safety protection switch 4 is arranged in the groove and protrudes from the groove, and the grabbing clamp 61 clamps one of the hoist arms 311 while pressing the safety protection switch 4.

[0059] In the embodiment, as shown in Figure 2As shown, the external hoisting device 6 includes a plurality of pairs of grabbing clamps 61, a driving device 62, and a support rail 63. The grabbing clamps 61 are symmetrically arranged on both sides of the support rail 63 and are used to clamp the bottoms of the two hoisting arms 311. The driving device 62 is connected to the grabbing clamps 61 and is used to drive the grabbing clamps 61 to clamp the bottoms of the two hoisting arms 311. The support rail 63 is used to support the grabbing clamps 61 and the driving device 62. The driving device 62 drives the grabbing clamps 61 to rotate and clamp the bottoms of the two hoisting arms 311. The external hoisting device 6 further includes a control box connected to the driving device 62 and controlling the driving device 62. When the grabbing clamps 61 clamp the bottoms of the two hoisting arms 311, the safety protection switch 4 is pressed, so that the safety protection switch 4 is pressed down to cut off the power supply of the battery module in the box body 1, thereby achieving physical power-off, solving the safety hazard caused by accidental power-on during vehicle battery replacement, and making up for the situation that the protection is not in place when the soft drop scheme fails.

[0060] In this embodiment, as shown in Figure 1 , 2 In this embodiment, the bottom of one of the hoisting arms 311 is provided with a fixing seat, and the safety protection switch 4 is installed on the bottom of one of the hoisting arms 311 through the fixing seat. When the grabbing clamps 61 clamp the bottoms of the two hoisting arms 311, the grabbing clamps 61 will contact the safety protection switch 4 and press it, so that the safety protection switch 4 is pressed down to achieve physical power-off of the battery box.

[0061] In this embodiment, the battery module includes a plurality of batteries. The series and parallel connection of the plurality of batteries provides the required voltage and current for the battery module.

[0062] In this embodiment, as shown in Figure 1 The safety protection switch 4 is in the shape of a long strip, so that when the battery box is lifted by the external hoisting device 6, the contact area with the grabbing clamps 61 is increased to reduce the pressure at the contact surface, and the grabbing clamps 61 are facilitated to contact the safety protection switch 4 and press it down.

[0063] In this embodiment, as shown in Figure 1 The fixed frame 2 includes a second square frame 22 and a connecting column 23 connecting the two second square frames 22. The two second square frames 22 are respectively connected to the support columns 32. The second square frames 22 and the connecting column 23 form a rectangular fixed frame 2.

[0064] In this embodiment, as shown in Figure 1As shown, further comprising a heat dissipation frame 5 arranged below the fixed frame 2 and connected with the fixed frame 2. A heat dissipation inner cavity 51 is arranged in the heat dissipation frame 5, and a heat dissipation fan is arranged in the heat dissipation inner cavity 51. The heat dissipation fan is used for dissipating heat of the battery module in the box 1, and can discharge heat generated by the battery module, effectively reducing the temperature of the battery module, thereby preventing the battery module from being overheated and causing performance degradation or damage, and prolonging the service life of the battery module.

[0065] In the embodiment, the number of heat dissipation fans is multiple. Multiple heat dissipation fans can form more uniform airflow distribution in the heat dissipation frame 5, so that heat can be more uniformly dissipated to the entire heat dissipation frame 5, avoiding local overheating, ensuring the temperature uniformity of each part of the battery module, and improving the overall performance of the system.

[0066] In the embodiment, the bottom of the mounting inner cavity 21 is provided with a fixing structure, and the box 1 is mounted through the fixing structure. The fixing structure is a mounting beam arranged at the bottom of the mounting inner cavity 21, and the box 1 is fixed on the mounting beam to achieve fixed mounting of the box 1.

[0067] In summary, when the battery box for the battery replacement heavy truck is replaced, the external hoisting device 6 clamps the bottom of the hoisting beam 3 and applies pressure to the safety protection switch 4 arranged at the bottom of the hoisting beam 3, so that the safety protection switch 4 is forced to be pressed down, and the battery module in the box 1 is forcibly cut off to supply power to the outside, thereby directly cutting off the power supply of the battery module through a physical method, without relying on complex algorithms and logical judgments, greatly reducing the risk of protection failure caused by software vulnerabilities or faults, and avoiding the risk of accidental power-on of the battery replacement heavy truck when the external hoisting device 6 is not completely loosened, thereby preventing the safety hazard caused by the accidental start of the battery replacement heavy truck, and avoiding the safety accident caused by dragging the external hoisting device 6, not only protecting the structure and equipment safety of the battery replacement station, but also ensuring the life safety of the operator. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0068] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A battery box for a battery swap heavy truck, an external hoisting device (6) is used to replace the battery box, characterized in that, The battery box comprises: a box body (1) in which a battery module is arranged; a fixed frame (2) in which at least one mounting cavity (21) for mounting the box body (1) is arranged; a hoisting beam (3) arranged above the fixed frame (2) for hoisting replacement of the battery box; a safety protection switch (4) arranged at the bottom of the hoisting beam (3) and electrically connected with the battery module, and pressed down to cut off the external power supply of the battery module when the hoisting beam (3) is clamped by the external hoisting device (6) at the bottom.

2. The battery box for a battery swap heavy truck according to claim 1, characterized in that, The hoisting beam (3) comprises a first square frame (31) and a plurality of support columns (32) connecting the first square frame (31) and the fixed frame (2); the first square frame (31) comprises two hoisting arms (311) and a plurality of connecting arms (312) arranged between the two hoisting arms (311); the safety protection switch (4) is arranged at the bottom of one of the hoisting arms (311).

3. The battery box for a battery swap heavy truck according to claim 2, characterized in that, The bottom of one of the hoisting arms (311) is provided with a fixing seat, and the safety protection switch (4) is installed at the bottom of one of the hoisting arms (311) through the fixing seat.

4. The battery box for a battery swap heavy truck according to claim 1, characterized in that, The battery module comprises a plurality of batteries.

5. The battery box for a battery swap heavy truck of claim 1, wherein, The safety protection switch (4) is in the shape of a long strip.

6. The battery box for a battery swap heavy truck according to claim 2, wherein, The fixed frame (2) comprises oppositely arranged second square frames (22) and connecting columns (23) connecting the two second square frames (22); the two second square frames (22) are respectively connected with the support columns (32).

7. The battery box for a battery swap heavy truck of claim 1, wherein, Further comprising a heat dissipation frame (5) arranged below the fixed frame (2).

8. The battery box for a battery swap heavy truck of claim 7, wherein, The heat dissipation frame (5) is provided with a heat dissipation cavity (51) therein, and a heat dissipation fan is arranged in the heat dissipation cavity (51).

9. The battery box for a battery swap heavy truck of claim 8, wherein, The number of the heat dissipation fans is multiple.

10. The battery box for a battery swap heavy truck of claim 1, wherein, The bottom of the mounting cavity (21) is provided with a fixing structure, and the box body (1) is mounted through the fixing structure.

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