Lift car structure and battery transfer equipment comprising same

Abstract

The utility model provides a car structure and battery transfer equipment including the car structure, it includes bottom plate and fixed part, the fixed part extends along the battery transport direction and is provided on the upper surface of bottom plate, the fixed part is used for bearing the battery extension mechanism, its characterized in that the car structure also includes the crossbeam, the crossbeam is arranged in pair, and the fixed part is provided with the battery extension mechanism. The two cross beams are arranged on the bottom plate and attached to the surfaces of the two sides of the bottom plate in the battery conveying direction respectively, the two ends of the fixing part extend and are connected to the surfaces of the two cross beams respectively, and the top faces of the cross beams are higher than the upper surface of the fixing part. According to the lift car structure, the cross beams are arranged on the two sides of the bottom plate to be attached to the bottom plate, the two ends of the fixing part also extend and are connected with the cross beams, and therefore the bottom plate can meet the requirement for bearing the battery pack under the condition that the thickness of the bottom plate is relatively small, and the battery pack with the larger size can be contained.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle battery replacement technical field, especially a car structure and contain its battery transfer equipment. BACKGROUND

[0002] The battery replacement station is used for replacing the battery of the electric vehicle, when the electric vehicle drives into the battery replacement station and is reliably positioned, the battery replacement trolley takes the depleted battery on the electric vehicle and places it on the battery transfer equipment, then the battery transfer equipment transports the taken depleted battery to the charging compartment of the charging rack, and then the battery transfer equipment takes out the charged battery from the charging compartment and places it on the battery replacement trolley, and the battery replacement trolley transports the charged battery to the predetermined position and installs it on the electric vehicle.

[0003] In the prior art, the battery transfer equipment generally includes a car and a support, and the car is mainly a three-dimensional frame structure composed of a bottom plate and a column. The column of the car is connected to the support and can be lifted up and down relative to the support to drive the entire car structure to lift up and down. The bottom plate of the car is provided with a battery extension mechanism to horizontally take and place the battery pack. At present, the types of electric vehicles that can be replaced are expanded from small cars to trucks and buses, and the size of the battery pack is also expanded, which puts more requirements on the space inside the car. How to make the car structure of the battery transfer equipment compact to accommodate larger size batteries in the limited space of the battery replacement station has become the focus of the designers. SUMMARY

[0004] The utility model solves the technical problem that the car structure of the battery transfer equipment in the prior art is not compact and cannot accommodate larger size battery packs, and provides a car structure and a battery transfer equipment containing the same.

[0005] The utility model solves the above technical problems by the following technical scheme:

[0006] A car structure includes a bottom plate and a fixed part, the fixed part extends along the battery conveying direction and is arranged on the upper surface of the bottom plate, the fixed part is used for bearing a battery extension mechanism, the car structure further includes a cross beam, the cross beam is arranged in pairs and is respectively attached to the two side surfaces of the bottom plate along the battery conveying direction, the two ends of the fixed part extend and are respectively connected to the surfaces of the two cross beams, and the top surface of the cross beam is higher than the upper surface of the fixed part.

[0007] The car structure is provided with the beams on both sides of the bottom plate along the battery conveying direction, and the two ends of the fixed part for connecting the battery extension mechanism also extend and connect with the beams to strengthen the structure of the bottom plate and the fixed part, so that the bottom plate can meet the requirement of carrying the battery pack even if the thickness of the bottom plate is relatively thin.

[0008] Meanwhile, the top surface of the beam is higher than the upper surface of the fixed part, and the two sides and the middle bottom plate form an upward concave structure, the fixed part is arranged between the two beams, so that the battery extension mechanism connected with the fixed part can also be partially located between the two beams, which can ensure that the beam has sufficient height to provide structural reinforcement, and can also compress the height between the bottom of the car structure and the battery extension mechanism to accommodate larger size battery packs.

[0009] Preferably, the bottom surface of the beam is flush with the lower surface of the bottom plate.

[0010] Through the structure, on the one hand, the beam can have sufficient height to provide structural reinforcement, and on the other hand, the height between the bottom of the car structure and the battery extension mechanism can be further compressed to accommodate larger size battery packs.

[0011] Preferably, the beam is composed of a horizontally extending rectangular tube, and the outer surface of the beam on the side facing the fixed part has an upward hollow part, and the fixed part passes through the hollow part and is connected with the inner surface of the beam on the side away from the fixed part.

[0012] By providing the upward hollow part on the outer surface of the beam on the side facing the fixed part, the fixed part can be connected with the inner surface of the beam on the side away from the fixed part after passing through the hollow part, so that the length of the fixed part can be extended, and larger size battery extension mechanisms can be accommodated to improve the battery pack carrying capacity of the car structure.

[0013] Preferably, the car structure comprises a battery in-place detection bracket connected to the surface of the beam on the side facing the bottom plate.

[0014] By connecting the battery in-place detection bracket to the surface of the beam on the side facing the bottom plate, the battery in-place detection bracket is located within the range of the bottom plate in the horizontal direction, which can avoid false detection caused by the battery in-place sensor connected with the battery in-place detection bracket extending horizontally to the outside of the bottom plate.

[0015] Preferably, the car structure further comprises a plurality of columns, and a plurality of the columns are arranged on both sides of the bottom plate along a direction perpendicular to the battery conveying direction.

[0016] The bottom plate comprises a channel steel extending in a direction perpendicular to the battery conveying direction, two ends of the channel steel extending below the column, and the column being connected to the upper surface of the channel steel.

[0017] In the case where the profile constituting the bottom plate comprises a channel steel, by extending the channel steel below the column, the column is connected to the bottom plate in a top-down contact manner, which can improve the vertical load-bearing capacity of the car structure compared with the side contact scheme commonly used in the prior art, so as to bear heavier battery packs.

[0018] Preferably, the car structure further comprises a reinforcing plate having a first surface and a second surface arranged at an angle, the first surface of the reinforcing plate being connected to the side surface of the column, and the second surface of the reinforcing plate being connected to the upper surface of the bottom plate.

[0019] By connecting the column and the bottom plate with the reinforcing plate, the connection strength between the column and the bottom plate is improved.

[0020] A battery transfer device comprising:

[0021] The car structure as described above;

[0022] At least two position detection sensors, two of the position detection sensors being arranged at two ends of the car structure in the battery conveying direction, and the detection end of the position detection sensor being arranged upward in the vertical direction.

[0023] By arranging the detection end of the position detection sensor upward in the vertical direction, if both of the position detection sensors generate a position signal after the battery pack is placed in the car structure, it indicates that the placement posture of the battery pack relative to the car structure is correct, and if one or none of the position detection sensors generates a position signal, it indicates that the placement posture of the battery pack relative to the car structure is incorrect (i.e., there is a certain angle between the bottom surface of the battery pack and the bottom surface of the normally placed battery pack), so as to determine whether the posture of the battery pack relative to the car structure is correct based on the position signals generated by the two position detection sensors.

[0024] Preferably, the two position detection sensors are arranged at the two ends of the car structure along the battery conveying direction, so that the horizontal distance between the two position detection sensors is relatively far, and the battery pack can be detected by the position detection sensor even if the placement angle deviation is small, thereby improving the active detection capability.

[0025] Preferably, the car structure further comprises a battery position detection bracket corresponding to each of the position detection sensors, and at least one of the battery position detection brackets is connected to the surface of the cross beam on the side facing the bottom plate.

[0026] By connecting the battery-in-place detection bracket to the surface of the crossbeam towards the side of the bottom plate, the in-place detection sensor connected with the battery-in-place detection bracket can also be located within the range of the bottom plate in the horizontal direction, so as to avoid false detection caused by the horizontal extension of the in-place sensor to the outside of the bottom plate.

[0027] Preferably, the battery transfer device further comprises an adapter, the in-place detection sensor is detachably connected with the battery-in-place detection bracket through the adapter, the horizontal position of the adapter relative to the battery-in-place detection bracket is adjustable, and the vertical position of the in-place detection sensor relative to the adapter is adjustable.

[0028] The in-place detection sensor is connected with the battery-in-place detection bracket through the adapter, so that the in-place detection sensor has the ability of horizontal and vertical position adjustment, thereby improving the battery pack in-place detection capability by fine-tuning the position of the in-place detection sensor.

[0029] Preferably, the battery transfer device further comprises:

[0030] Two battery extension mechanisms arranged in parallel, and the two battery extension mechanisms are arranged on the upper surfaces of the two fixing parts, respectively.

[0031] A power source arranged between the two battery extension mechanisms and in driving connection with the two battery extension mechanisms, respectively, and at least one battery-in-place detection bracket arranged between the power source and the crossbeam.

[0032] The battery-in-place detection bracket is arranged in the space between the power source and the crossbeam, so that the structural layout is more compact.

[0033] The positive progress effect of the battery transfer device of the embodiment of the utility model lies in:

[0034] In the battery transfer device comprising the car structure, the crossbeam is attached to the bottom plate on both sides, and the two ends of the fixing part are also extended and connected with the crossbeam, so that the structure of the bottom plate and the fixing part is strengthened, and the bottom plate can meet the requirement of bearing the battery pack even if the thickness of the bottom plate is relatively thin.

[0035] Meanwhile, the top surface of the crossbeam is higher than the upper surface of the fixing part, the fixing part is arranged between the two crossbeams, so that the battery extension mechanism connected with the fixing part can also be partially located between the two crossbeams, so as to ensure that the crossbeam has sufficient height to provide structural reinforcement, and the height between the bottom of the car structure and the battery extension mechanism is reduced to accommodate a larger size battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 The figure is a structural schematic view of the battery transfer device of the embodiment of the utility model.

[0037] Figure 2 The setting relation schematic view of the car structure, the battery extension mechanism and the power source of one embodiment of the utility model.

[0038] Figure 3 The structure schematic view of the car structure of one embodiment of the utility model, wherein the roof beam is hidden.

[0039] Figure 4 The structure schematic view of the roof beam of one embodiment of the utility model. Figure 3 The sectional view of C-C part in the figure.

[0040] Figure 5 The local enlarged view of D part in the figure. Figure 3 The sectional view of C-C part in the figure.

[0041] Figure 6 The structure schematic view of the roof beam of one embodiment of the utility model.

[0042] Figure 7 The local enlarged view of E part in the figure. Figure 3 The sectional view of C-C part in the figure.

[0043] Figure 8 The structure schematic view of the car structure of one embodiment of the utility model.

[0044] Figure 9 The local enlarged view of F part in the figure. Figure 8 The sectional view of C-C part in the figure.

[0045] Figure 10 The local enlarged view of G part in the figure. Figure 8 The sectional view of C-C part in the figure.

[0046] Explanation of reference signs:

[0047] Battery transfer equipment 100, battery conveying direction A, car lifting direction B

[0048] Car structure 10

[0049] Bottom plate 1, lower surface 1a

[0050] Fixed part 2, upper surface 2a

[0051] Crossbeam 3, hollow part 31, top surface 3a, bottom surface 3b, inner surface 3c

[0052] Battery in place detection support 4

[0053] Stand 5

[0054] Reinforcing plate 6

[0055] Roof beam 7

[0056] Equipment frame 20

[0057] Lifting mechanism 30

[0058] Battery extension mechanism 40

[0059] Position detection sensor 50

[0060] Power Source 60

[0061] Adapter 70 Detailed Implementation

[0062] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0063] This utility model provides a battery transfer device 100, such as... Figure 1 As shown, the battery transfer device 100 includes a car structure 10, an equipment frame 20, a lifting mechanism 30, and a battery extension mechanism 40. The car structure 10 accommodates the battery pack to be replaced. A pair of battery extension mechanisms 40 are provided on the surface of the floor plate 1 of the car structure 10. These mechanisms directly support the battery pack and are driven by a power source 60 to move the battery pack into or out of the car structure 10 along the battery transport direction A. The entire car structure 10 is housed within the equipment frame 20. Lifting mechanisms 30 are located on both sides of the car structure 10. These mechanisms are driven by a motor to rotate gears that mesh with racks vertically positioned on the sides of the car structure 10, driving the car structure 10 to reciprocate along the car lifting direction B, thereby raising and lowering the battery pack within the car structure 10. This battery transfer device 100 achieves the purpose of battery pack transfer by moving the battery pack along the battery transport direction A (horizontal direction) and the car lifting direction B (vertical direction), meeting the battery swapping needs of electric vehicles.

[0064] like Figure 2 As shown, two battery extension mechanisms 40 are provided inside the car structure 10 to directly support the battery pack. A power source 60, which is a motor, is provided between the two battery extension mechanisms 40, and is connected to the two battery extension mechanisms 40 through transmission rods located on both sides of the power source 60.

[0065] When it is necessary to send the battery pack it carries outward along the battery transport direction A, the motor of the power source 60 works and drives the two battery extension mechanisms 40 to move outward along the battery transport direction A, so as to achieve the purpose of sending the battery pack out horizontally.

[0066] When it is necessary to return the battery pack to the car structure 10, the motor of the power source 60 rotates in the opposite direction and drives the two battery extension mechanisms 40 to retract inward along the battery conveying direction A, thereby achieving the purpose of horizontally returning the battery pack to the car structure 10.

[0067] Meanwhile, two battery-to-position detection supports 4 are arranged in the car structure 10, and the two battery-to-position detection supports 4 are distributed at the front and rear ends of the car structure 10 along the battery conveying direction A, and are respectively used for arranging a to-position detection sensor 50, and the detection end of the to-position detection sensor 50 is arranged upward along the vertical direction, so that, after the battery pack is placed in the car structure 10, if the two to-position sensors all generate a to-position signal, it indicates that the placement posture of the battery pack relative to the car structure 10 is correct, and if one or none of the to-position sensors 50 generates a to-position signal, it indicates that the placement posture of the battery pack relative to the car structure 10 is incorrect (that is, at this time, there is a certain angle between the bottom surface of the battery pack relative to the bottom surface of the normally placed battery pack), so as to judge whether the posture of the battery pack relative to the car structure 10 is correct based on the to-position signals generated by the two to-position sensors 50. Among them, the two to-position sensors 50 are arranged at the two ends of the car structure 10 along the battery conveying direction A, so that the horizontal distance between the two to-position sensors 50 is relatively far, so that the battery pack can also be detected by the to-position sensor in the case of small placement angle deviation, and the active detection capability is improved.

[0068] As shown in Figure 3 , the car structure 10 in the embodiment includes a bottom plate 1 and two fixed parts 2, the two fixed parts 2 are respectively arranged corresponding to the two battery extension mechanisms 40, and extend along the battery conveying direction A, and are respectively arranged on the upper surface of the bottom plate 1. The fixed part 2 is a solid metal block, and has high structural precision, and is used for bearing the battery extension mechanism 40, and the bottom plate 1 is formed by butt welding of a plurality of channel steels, so that the weight of the bottom plate 1 is not too heavy, to form a plane for arranging the fixed part 2.

[0069] As shown in Figure 3 and Figure 4 , the car structure 10 further includes two cross beams 3, and the two cross beams 3 are arranged in pairs and respectively abut the two side surfaces of the bottom plate 1 along the battery conveying direction A. Meanwhile, the two ends of the fixed part 2 extend and are respectively connected to the surfaces of the cross beams 3. As shown in Figure 4 and Figure 5 , the top surface 3a of the cross beam 3 is higher than the upper surface 2a of the fixed part 2. The car structure 10 is abutted with the bottom plate 1 by arranging the cross beams 3 on the two sides of the bottom plate 1 along the battery conveying direction A, and the two ends of the fixed part 2 also extend and are connected to the cross beams 3, so as to strengthen the structure of the bottom plate 1 and the fixed part 2, so that the bottom plate 1 can provide a load capacity to meet the requirement of bearing the battery pack under the condition that the thickness of the bottom plate 1 is relatively thin.

[0070] Meanwhile, the top surface 3a of the cross beam 3 is higher than the upper surface 2a of the fixed part 2, and the openings surrounded by the cross beams 3 on the two sides and the bottom plate 1 in the middle are concave structures with the opening upward (see Figure 4), the fixing part 2 is arranged between the two cross beams 3, so that the battery extension mechanism 40 connected by the fixing part 2 can also be partially located between the two cross beams 3, on the one hand, the height of the cross beam 3 can be ensured to provide structural reinforcement, and on the other hand, the height between the bottom of the car structure 10 and the battery extension mechanism 40 can be compressed to accommodate a larger size battery pack.

[0071] As shown in Figure 4 , in the present embodiment, the bottom surface 3b of the cross beam 3 is flush with the lower surface 1a of the bottom plate 1. Through such structural arrangement, on the one hand, the height of the cross beam 3 can be ensured to provide structural reinforcement, and on the other hand, the height between the bottom of the car structure 10 and the battery extension mechanism 40 can be further compressed to accommodate a larger size battery pack.

[0072] In the present embodiment, in order to ensure the structural strength of the cross beam 3, while avoiding the weight of the cross beam 3 being too heavy, as shown in Figure 6 , the cross beam 3 is composed of a horizontally extending rectangular tube, and the outer surface of the cross beam 3 on the side facing the fixing part 2 has an upwardly penetrating hollow part, the fixing part 2 penetrates through the hollow part and is connected with the inner surface 3c of the cross beam 3 on the side away from the fixing part 2 (see Figure 4 and Figure 5 ). By arranging the upwardly penetrating hollow part on the outer surface of the cross beam 3 on the side facing the fixing part 2, the fixing part 2 can penetrate through the hollow part and then be connected with the inner surface of the cross beam 3 on the side away from the fixing part 2, so that the length of the fixing part 2 can be extended, a larger size battery extension mechanism 40 can be accommodated, and the battery pack carrying capacity of the car structure 10 can be improved.

[0073] As shown in Figure 7 , in the case of arranging the cross beam 3 to reinforce the structure of the bottom plate 1, the battery in-place detection bracket 4 is connected to the surface of the cross beam 3 on the side facing the bottom plate 1, so that the battery in-place detection bracket 4 is located within the range of the bottom plate 1 in the horizontal direction, and false detection caused by the battery in-place sensor connected to the battery in-place detection bracket 4 extending horizontally to the outside of the bottom plate 1 can be avoided.

[0074] In the present embodiment, there are two battery in-place detection brackets 4 for respectively arranging two battery in-place sensors, wherein, as shown in Figure 8 , the battery in-place detection bracket 4 close to the side of the power source 60 is arranged on the surface of the cross beam 3 on the side facing the bottom plate 1 to avoid false detection caused by the battery in-place sensor, and the other battery in-place detection bracket 4 is arranged on the surface of the cross beam 3 on the side away from the bottom plate 1. In other embodiments, the arrangement position of the battery in-place detection bracket 4 can be arranged as needed according to actual detection requirements.

[0075] As shown in Figure 9 and Figure 10As shown, the battery transfer device 100 further comprises an adapter 70, the in-place detection sensor 50 is detachably connected with the battery in-place detection bracket 4 through the adapter 70, specifically, the adapter 70 is connected with the in-place detection sensor 50 and the battery in-place detection bracket 4 through the waist hole of the adapter 70. Among them, since the waist hole of the adapter 70 connected with the battery in-place detection bracket 4 is arranged along the battery conveying direction A, the horizontal position of the adapter 70 relative to the battery in-place detection bracket 4 can be adjusted. In addition, since the waist hole of the adapter 70 connected with the in-place detection sensor is arranged along the car lifting direction B, the vertical position of the in-place detection sensor 50 relative to the adapter 70 can be adjusted. The in-place detection sensor 50 is connected with the battery in-place detection bracket 4 through the adapter 70, so that the in-place detection sensor 50 has the ability of horizontal and vertical adjustment of position, so as to improve the ability of battery pack in-place detection by fine-tuning the position of the in-place detection sensor 50. In addition, as shown in Figure 9 In order to achieve the purpose of compact layout, the battery in-place detection bracket 4 close to the power source 60 is arranged between the power source 60 and the cross beam 3.

[0076] As shown in Figure 2 and Figure 3 The car structure 10 further comprises six columns 5, which are arranged on both sides of the bottom plate 1 along the direction perpendicular to the battery conveying direction A, and the lifting mechanism 30 is arranged on the column 5. Among them, since the bottom plate 1 in the embodiment is composed of a plurality of channel steels, by further extending the channel steels arranged along the direction perpendicular to the battery conveying direction A outward, the two ends of the channel steels are extended below the column 5, and the bottom of the column 5 is connected with the upper surface of the channel steel. In the embodiment, when the profile constituting the bottom plate 1 includes channel steel, by extending part of the channel steel below the column 5, the column 5 and the bottom plate 1 are connected by upper and lower contact, which can improve the carrying capacity of the car structure 10 in the vertical direction compared with the side contact scheme commonly used in the prior art, so as to carry heavier battery packs.

[0077] The car structure 10 further comprises a reinforcing plate 6, which has a first face and a second face arranged at 90°, wherein the first face of the reinforcing plate 6 is connected with the side face of the column 5, and the second face of the reinforcing plate 6 is connected with the upper surface of the bottom plate 1. By connecting the column 5 and the bottom plate 1 through the reinforcing plate 6, the connection strength between the column 5 and the bottom plate 1 is improved. In addition, as shown in Figure 2 The car structure 10 further comprises a top beam 7, which is horizontally arranged and connected with the columns 5 on both sides, so that the bottom plate 1, the column 5 and the top beam 7 form a complete frame structure, and the structural strength of the car structure 10 is higher.

[0078] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, but these changes and modifications all fall within the protection scope of the present application.

Claims

1. A car structure comprising a floor and a fixed portion, the fixed portion extending in a battery conveying direction and provided on an upper surface of the floor, the fixed portion serving to carry a battery extension mechanism, characterized in that, The car structure further comprises a beam, the beam is arranged in pairs and is matched with the two side surfaces of the bottom plate along the battery conveying direction respectively, the two ends of the fixed part extend and are connected to the surfaces of the two beams respectively, and the top surface of the beam is higher than the upper surface of the fixed part.

2. The car structure according to claim 1, characterized in that, The bottom surface of the beam is flush with the lower surface of the bottom plate.

3. The car structure according to claim 1, characterized in that, The beam is composed of a horizontally extending rectangular tube, and the outer surface of the side of the beam facing the fixed part has a hollow part penetrating upward, and the fixed part penetrates through the hollow part and is connected to the inner surface of the side of the beam away from the fixed part.

4. The car structure according to claim 1, characterized by The car structure comprises a battery in-place detection bracket, and the battery in-place detection bracket is connected to the surface of the side of the beam facing the bottom plate.

5. The car structure according to claim 1, characterized by The car structure further comprises a plurality of columns, and a plurality of columns are arranged on the two sides of the bottom plate along a direction perpendicular to the battery conveying direction. The bottom plate comprises a channel steel extending along a direction perpendicular to the battery conveying direction, and the two ends of the channel steel extend below the columns, and the columns are connected to the upper surface of the channel steel.

6. The car structure according to claim 5, characterized in that, The car structure further comprises a reinforcing plate, the reinforcing plate has a first surface and a second surface arranged at an angle, the first surface of the reinforcing plate is connected to the side surface of the column, and the second surface of the reinforcing plate is connected to the upper surface of the bottom plate.

7. A battery transfer apparatus, characterized by, It comprises: The car structure of any one of claims 1-6; At least two in-place detection sensors, in the battery conveying direction, two in-place detection sensors are arranged at the two ends of the car structure respectively, and the detection end of the in-place detection sensor is arranged upward along the vertical direction.

8. The battery transfer device of claim 7, wherein, The car structure further comprises a battery in-place detection bracket corresponding to the in-place detection sensor, and at least one battery in-place detection bracket is connected to the surface of the side of the beam facing the bottom plate.

9. The battery transfer device of claim 8, wherein, The battery transfer device further comprises an adapter, the in-place detection sensor is detachably connected to the battery in-place detection bracket through the adapter, the horizontal position of the adapter relative to the battery in-place detection bracket is adjustable, and the vertical position of the in-place detection sensor relative to the adapter is adjustable.

10. The battery transfer device of claim 8, wherein, The battery transfer device further comprises: Two relatively parallel arranged battery extension mechanisms, two battery extension mechanisms are arranged on the upper surfaces of the two fixed parts respectively; A power source, the power source is arranged between the two battery extension mechanisms and is drivingly connected to the two battery extension mechanisms respectively, and at least one battery in-place detection bracket is arranged between the power source and the beam.

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