Battery replacement battery and electric vehicle with same

Abstract

The battery replacing battery comprises a battery assembly and a body for containing the battery assembly, a high-voltage box fixedly connected to the body is arranged at the bottom of the battery assembly, and the body comprises a top frame located on the upper portion of the battery assembly and a bottom frame for installing the high-voltage box. A refrigeration assembly is arranged in the middle of the top frame, the top frame comprises hoisting parts arranged on the two sides of the refrigeration assembly, and the refrigeration assembly and the high-voltage box are vertically aligned, so that the gravity center of the battery is in the center, good stability is achieved, and an electric vehicle adopting the power battery runs more safely and reliably.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy vehicle technical field especially, and relates to a kind of battery swapping battery and electric vehicle with it. BACKGROUND

[0002] New energy electric vehicle is more environmentally friendly compared with traditional fuel truck, and operating cost is not affected by oil price, more conducive to cost control, the existing new energy electric vehicle usually uses power battery to provide electric energy.For example, the battery swapping battery used by the common battery swapping heavy truck, since the energy needed to be provided is more, generally uses multiple cells to combine into battery pack, to ensure that enough power can be provided to electric vehicle, in this case, multiple cells need to be managed simultaneously, therefore battery swapping battery is often equipped with cooling system and heating system, these functional components undoubtedly increase the assembly difficulty of battery swapping battery and occupy more space.The existing method is to install high-voltage box to the bottom of power battery and manage the high-voltage power distribution of the whole vehicle by using high-voltage box, install battery swapping connector to high-voltage box, and distribute the compressor, condenser and evaporator of cooling system with refrigeration function around the high-voltage box at the bottom of battery swapping battery to reduce the overall height of battery swapping battery, in this case, there is a certain space waste on the top of battery swapping battery after removing the necessary hoisting space;Another method is to distribute the parts of cooling system to the side or one side of the top of battery swapping battery, which undoubtedly offsets the center of gravity of battery swapping battery, and the stability and safety of battery swapping battery in the driving process of electric vehicle using such battery swapping battery need to be improved. SUMMARY

[0003] In view of the defects in the prior art, the purpose of the utility model is to provide a battery swapping battery which is compact and stable.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A battery swapping battery is provided, which includes a battery assembly and a body accommodating the battery assembly, the bottom of the battery assembly is provided with a high-voltage box fixedly connected to the body, the bottom of the high-voltage box is provided with an electrical connector, the body includes a top frame located at the upper part of the battery assembly and a bottom frame mounting the high-voltage box, the middle position of the top frame is provided with a refrigeration assembly, the top frame includes hoisting parts arranged on both sides of the refrigeration assembly, and the refrigeration assembly is aligned with the high-voltage box in an up-down direction.

[0006] Further, the bottom frame is provided with a first guide part on both sides of the high-voltage box.

[0007] Further, the bottom frame is further provided with a second guide part on both sides of the high-voltage box, and the distance between the second guide part and the high-voltage box is smaller than the distance between the first guide part and the high-voltage box.

[0008] Further, the hoisting part comprises a buffer pad fixed on the top frame, and a projection of the buffer pad on a horizontal plane is located between the first guide part and the second guide part.

[0009] Further, the battery assembly comprises a plurality of stacked battery cells, and the refrigeration assembly is in communication with each battery cell through a pipeline for heat exchange with the inside of the battery cell.

[0010] Further, the refrigeration assembly comprises a box body comprising oppositely arranged front and rear walls, the front wall is provided with an air outlet, and the rear wall is provided with an air inlet.

[0011] Further, the refrigeration assembly is integrated with a condenser and a compressor in the box body, and the condenser is aligned with the air outlet.

[0012] The utility model also aims at providing an electric vehicle, which separates the high-voltage box from the vehicle to obtain higher energy density and facilitate maintenance of the power battery.

[0013] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0014] The utility model provides a power battery which is installed on the frame of an electric vehicle, and comprises a battery compartment for storing a battery system, the bottom of the battery compartment is installed on the frame, and the power battery further comprises a high-voltage box as described above which is detachably installed on the bottom of the battery compartment and located on one side of the frame, and the side of the high-voltage box where the charging socket is installed faces the outside of the electric vehicle.

[0015] Further, the battery compartment comprises a shell which comprises a bottom plate on one side of which the high-voltage box is installed, the bottom plate is provided with an avoiding gap on the side close to the high-voltage box, and the transfer joint is electrically connected with the battery system through a second cable which passes through the avoiding gap.

[0016] Further, the shell of the battery compartment is provided with an end plate on the side where the high-voltage box is installed, and the end plate is provided with a wiring space between the end plate and the battery system.

[0017] Further, the wiring space is aligned with the avoiding gap in the vertical direction.

[0018] Further, a step is formed between the battery compartment and the high-voltage box, the height of the step is equal to the thickness of the high-voltage box, and the length of the charging joint extending outward beyond the high-voltage box is not more than the width of the step.

[0019] Further, the electric vehicle comprises a driving system, the power transmission joint of the high-voltage box is in electrical communication with the driving system through a first cable, and the first cable is partially fixedly connected to the frame.

[0020] The utility model also aims at providing an electric vehicle, the electric vehicle includes a vehicle head and a frame, is equipped with the battery bottom support on the frame, is equipped with the battery of replacing electricity as described above on the battery bottom support.

[0021] By adopting the preceding technical scheme, the utility model has the beneficial effects of making full use of the structural space of the battery of replacing electricity, making the battery of replacing electricity more compact and stable with the center of gravity in the middle, and making the electric vehicle with the battery of replacing electricity more safe and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the three-dimensional schematic view of the battery of replacing electricity provided by the utility model;

[0023] Figure 2 is Figure 1 the rear view schematic view of the battery of replacing electricity shown in the figure;

[0024] Figure 3 is Figure 1 the three-dimensional schematic view of another view of the battery of replacing electricity shown in the figure. DETAILED DESCRIPTION

[0025] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as limiting the utility model.

[0026] In the description of the utility model, unless explicitly defined and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on top of" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "underneath" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0028] The technical scheme of the present application will be further illustrated below in combination with the drawings and through specific embodiments.

[0029] Please refer to Figures 1 to 3 As shown in the figure, the utility model provides a battery 100 for providing power for electric vehicles (not shown) especially for battery swap heavy truck, the battery 100 includes the battery assembly 4 consisting of a plurality of electric core and the body 10 for receiving battery assembly 4, the body 10 is substantially rectangular cuboid shape, in the embodiment, the body 10 is combined and fixed by several crossbeam and vertical beam and constitutes, in some other embodiments, the body 10 can also be combined into box shape by light weight aluminum alloy sheet material, it can also be that middle part is box shape, top and bottom are formed by frame and can be detachably installed as a whole. The bottom of the battery assembly 4 is provided with the high voltage box 2 fixedly connected to the body 4, the bottom of the high voltage box 2 is provided with the electric connector 21, the body 10 includes the top frame 11 located at the upper portion of the battery assembly 4 and the bottom frame 12 for installing the high voltage box 2, the middle position of the top frame 11 is provided with the refrigeration assembly 3, the top frame 11 includes the hoisting part 111 arranged at both sides of the refrigeration assembly 3, the refrigeration assembly 3 and the high voltage box 2 are vertically aligned with each other, that is, the refrigeration assembly 3 and the high voltage box 2 are vertically aligned, and the advantage of such design is that the gravity center of the battery 100 is centered, and is not deviated to one side, which is beneficial to improve the stability of the battery 100 during transportation.

[0030] Preferably, the bottom frame 12 is provided with a first guide part 121 on both sides of the high-voltage box 2. The first guide part 121 is used to complete the coarse guiding work with the coarse guide column provided on the battery replacement bottom support (not shown) of the electric vehicle. Further, the bottom frame 12 is also provided with a second guide part 122 on both sides of the high-voltage box 2, which is used to complete the fine guiding work with the fine guide column provided on the battery replacement bottom support of the electric vehicle, so as to ensure the accurate matching of the electric connector 21 and improve the service life of the battery replacement battery 100. Preferably, the distance between the second guide part 122 and the high-voltage box 2 is less than the distance between the first guide part 121 and the high-voltage box 2, so as to ensure the guiding accuracy of the electric connector 21 installed on the high-voltage box 2.

[0031] The battery replacement battery 100 is detachably installed on the electric vehicle, and preferably a lifting appliance is used to hoist and transfer the battery replacement battery 100 to complete the battery replacement action. The hoisting part 111 includes a buffer pad 112 fixedly provided on the top frame 11. The buffer pad 112 is used to reduce the impact of the lifting appliance on the battery replacement battery 100 when the lifting appliance contacts the battery replacement battery 100, and can also play a role of anti-skid and wear-resistant. Preferably, the projection of the buffer pad 112 on the horizontal plane is located between the first guide part 121 and the second guide part 122. In this way, the force conducted by the lifting appliance to the battery replacement battery 100 can be better distributed, so that the battery replacement battery 100 is more secure and stable during hoisting.

[0032] Further, the battery assembly 4 includes a plurality of stacked battery cells. The stacked arrangement can be spaced apart along the vertical direction, and each layer of battery cells can be fixed to the body 10 or contactingly stacked, for example, each battery cell itself has a box shell. The stacked arrangement can also be stacked along the horizontal direction, which will not be repeated here. The refrigeration assembly 3 and each battery cell are communicated through a pipeline (not shown), which is used to exchange heat with the inside of the battery cell and perform thermal management on the inside of the battery cell. The refrigeration assembly 3 includes a box body 30, which includes oppositely arranged front and rear walls 303 and 304. The front wall 303 is provided with an air outlet 31, and the rear wall 304 is provided with an air inlet 32. The box body 30 further includes two side walls 302 connected between the front and rear walls 303 and 304. In other embodiments, the side walls 302 are also provided with air inlet holes for air circulation.

[0033] The condenser (not shown) and the compressor (not shown) are integrated in the box body 30 of the refrigeration assembly 3, the condenser is aligned with the air outlet 31, and the heat emitted by the condenser can be quickly taken away by air flow. The battery replacement battery 100 fully utilizes the headspace, and the integrated refrigeration assembly 3 is convenient for maintenance and assembly. Since the refrigeration assembly 3 is located in the middle of the top of the battery replacement battery, the center of gravity of the battery replacement battery 100 is in the middle, and the stability during transportation is better. At the same time, since the refrigeration accessories do not need to be arranged in the bottom frame 12, the height of the high-pressure box 2 can be designed according to the height of the coarse guide column, thereby reducing the height of the bottom frame 12 as much as possible. In addition to the reserved grabbing space on both sides of the top frame 11, the middle part can be used to place the refrigeration assembly 3, so that the overall height of the battery replacement battery 100 can be further optimized, and the battery replacement battery 100 is more compact and has higher energy density.

[0034] The utility model further provides a kind of electric vehicle, the electric vehicle includes car head and frame, battery bottom support is equipped on the frame, battery bottom support is equipped with fine guide column and aforementioned coarse guide column, the battery bottom support is as described above battery replacement battery 100, preferably, rear wall 304 of the battery replacement battery 100 is close to car head part, front wall 303 is away from car head part, that is to say, let air inlet 32 be towards the advancing direction of vehicle, and then in the driving process of electric vehicle, the space flow in the box body 30 of refrigeration assembly 3 is advantageous to improve refrigeration effect, and the electric vehicle using the battery replacement battery 100 meeting the utility model has higher safety.

[0035] The above embodiments only illustrate the basic principles and characteristics of the utility model, and the utility model is not limited by the above embodiments. Without departing from the spirit and scope of the utility model, the utility model has various changes and changes, and these changes and changes fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A battery replacement battery (100) comprising a battery assembly (4) and a body (10) for accommodating the battery assembly (4), a high-voltage box (2) fixedly connected to the body (10) is arranged at the bottom of the battery assembly (4), an electrical connector (21) is arranged at the bottom of the high-voltage box (2), and the body (10) comprises a top frame (11) arranged at the upper part of the battery assembly (4) and a bottom frame (12) for mounting the high-voltage box (2), characterized in that, The middle position of the top frame (11) is provided with a refrigeration assembly (3), the top frame (11) comprises a hoisting part (111) arranged on both sides of the refrigeration assembly (3), and the refrigeration assembly (3) is aligned with the high-voltage box (2) up and down.

2. The battery swap battery (100) according to claim 1, characterized in that: The bottom frame (12) is provided with a first guide part (121) on both sides of the high-voltage box (2).

3. The battery swap battery (100) according to claim 2, characterized in that: The bottom frame (12) is further provided with a second guide part (122) on both sides of the high-voltage box (2), and the distance between the second guide part (122) and the high-voltage box (2) is smaller than the distance between the first guide part (121) and the high-voltage box (2).

4. The battery swap battery (100) according to claim 3, characterized in that: The hoisting part (111) comprises a buffer pad (112) fixedly arranged on the top frame (11), and the projection of the buffer pad (112) on the horizontal plane is located between the first guide part (121) and the second guide part (122).

5. The battery swap battery (100) of claim 1, wherein: The battery assembly (4) comprises a plurality of stacked battery cells, the refrigeration assembly (3) and each battery cell are communicated through a pipeline, and the pipeline is used for heat exchange with the inside of the battery cell.

6. The battery swap battery (100) of claim 1, wherein: The refrigeration assembly (3) comprises a box body (30), the box body (30) comprises a front wall (303) and a rear wall (304) arranged oppositely, an air outlet (31) is arranged on the front wall (303), and an air inlet (32) is arranged on the rear wall (304).

7. The battery swap battery (100) according to claim 6, characterized in that: The box body (30) of the refrigeration assembly (3) is integrated with a condenser and a compressor, and the condenser is aligned with the air outlet (31).

8. An electric vehicle comprising a vehicle head and a vehicle frame, the vehicle frame being provided with a battery bottom support, characterized in that, The battery bottom support is provided with the battery replacement battery (100) as claimed in any one of claims 1 to 6.

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