Quick-change battery mounting structure

Abstract

The utility model relates to a quick-change battery mounting structure which comprises a frame, a second battery bin used for mounting a lithium battery is arranged on the frame, an opening is formed in the side edge of the second battery bin, a battery bracket is arranged in the second battery bin, a side door turning plate is hinged to the opening side of the battery bracket, and the side door turning plate is located at the opening of the second battery bin; the side door turning plate can be turned between a closing position and an opening position, and when the side door turning plate is in the opening position, the inner side face of the side door turning plate is flush with the bottom of the battery bracket or located below the battery bracket. According to the scheme, a door plate used for closing the opening of the second battery compartment does not need to be additionally arranged for the opening of the second battery compartment, the pulling direction of the quick-change battery is consistent with the overturning direction of the side door overturning plate, and the situation that due to the arrangement of the side door overturning plate, the operation space needed by battery replacement is increased is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery fork truck technical field especially relates to a lithium battery fork truck's quick change battery mounting structure. BACKGROUND

[0002] The characteristics of lithium battery fork truck fast charging, use gap power supply can satisfy the demand of long endurance, but there are following shortcomings:

[0003] The charging process needs certain charging time, and the lithium battery fork truck cannot continue to perform the handling work in the charging process, and continuous work cannot be guaranteed. Especially for some use scenes, charging equipment is not set, and power supply cannot be charged. The standard capacity battery in the existing lithium battery fork truck has a large volume and weight, and in the scene of replacing the battery, the lithium battery cannot be moved by manpower without the aid of handling tools. Therefore, it is necessary to improve the battery mounting structure of the lithium battery fork truck in order to simplify the difficulty of battery replacement. SUMMARY

[0004] In order to solve the above problems, the purpose of the utility model is to provide a quick change battery mounting structure.

[0005] A quick change battery mounting structure, comprising a vehicle frame, a second battery compartment for mounting a lithium battery is arranged on the vehicle frame, the second battery compartment is open on the side, a battery bracket is arranged in the second battery compartment, or a plurality of battery brackets distributed in upper and lower layers are arranged in the second battery compartment; one side of the battery bracket is open, and the opening direction of the battery bracket is consistent with the opening direction of the second battery compartment; a side door flap is hingedly arranged on the opening side of the battery bracket, and the side door flap is located at the opening of the second battery compartment; the side door flap can be turned between a closed position and an open position, when the side door flap is in the closed position, the side door flap is perpendicular to the bottom plate of the battery bracket, and a first locking mechanism is arranged on the side door flap for keeping the side door flap in the closed position; when the side door flap is in the open position, the inner side of the side door flap is flush with the bottom of the battery bracket or is located below the battery bracket.

[0006] Two or more quick change batteries are arranged side by side on the battery bracket, and the front end of the quick change battery is arranged towards the opening side of the battery bracket.

[0007] As a preferred, the battery bracket is divided into one or more battery mounting areas arranged side by side, and the adjacent battery mounting areas are separated by a buffer strip.

[0008] As a preferred, a guide rail is arranged on the bottom plate of the battery bracket in each battery mounting area along the battery pulling direction, and a guide groove is arranged on the bottom of the battery box of the quick change battery corresponding to the guide rail.

[0009] As a preferred, the quick change battery is provided with a handle at least at the front end thereof.

[0010] As preferred, a second locking mechanism is arranged on the shell of the quick-change battery, and the relative position of the quick-change battery and the battery bracket is locked by the second locking mechanism.

[0011] As preferred, the second locking mechanism comprises a fixed frame fixed on the shell of the quick-change battery, and a locking bolt is threadedly connected to the fixed frame, and a locking hole corresponding to the locking bolt is arranged on the battery bracket.

[0012] As preferred, the rear side and the front and rear sides of the battery bracket are respectively provided with upwardly folded bending edges, and the bending edges are respectively provided with buffer pads towards one side of the quick-change battery.

[0013] As preferred, the front end of the quick-change battery box is provided with a wiring terminal, and the frontmost end of the fixed frame is located in front of the frontmost end of the wiring terminal.

[0014] As preferred, the left and right ends of the side door flap are respectively provided with sunken tables, and a first locking mechanism is arranged in the sunken table, the first locking mechanism comprises a spring and a locking pin coaxially arranged along the extension direction of the spring, and a locking hole corresponding to the locking pin is arranged on the frame, when the side door flap is located at the closed position, the locking pin is aligned with the locking hole on the same side, and the locking pin is clamped into the locking hole on the same side under the action of the spring restoring force.

[0015] As preferred, the side door flap comprises an inner side plate and an outer side plate, the inner side plate is a C-shaped bending plate, and the outer side plate is a flat plate, and in the closed position, the outer side plate is flush with the side opening of the second battery compartment.

[0016] The utility model discloses adopt the above -mentioned structure, on one hand, adopt quick-change battery and supply power, and the technical personnel of the field can set the number of quick-change battery and the number of quick-change battery of the power supply circuit according to the actual need electric capacity, and because the volume and weight of quick-change battery are small, the user can realize single replacement quick-change battery without the aid of tools, on the other hand, because of the setting of side door flap, it is not necessary to set the door plate for closing the opening of the second battery compartment additionally for the opening of the second battery compartment, and the pulling direction of quick-change battery is consistent with the overturning direction of side door flap, and the operation space required for replacing battery will not increase due to the setting of side door flap. ACCURACY

[0017] Figure 1 It is the whole structure schematic diagram of forklift when side door flap is located at the closed position;

[0018] Figure 2 It is the whole structure schematic diagram of forklift when side door flap is located at the closed position;

[0019] Figure 3 It is the structure schematic diagram of battery bracket;

[0020] Figure 4 Figure 1 is a schematic view of the mounting structure of the quick-change battery and the battery bracket;

[0021] Figure 5 Figure 2 is a schematic view of the mounting structure of the side door flap;

[0022] Figure 6 Figure 3 is an enlarged view of A in figure 1. Figure 1

[0023] Reference signs:

[0024] Frame 1, second battery compartment 12, quick-change battery 4, handle 41, fixing frame 42, locking bolt 43, battery bracket 7, side door flap 71, bottom plate 72, bent edge 73, buffer pad 74, buffer strip 75, guide rail 76, locking pin 81, spring 82, hinge set 9. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below.

[0026] The embodiment provides a quick-change battery mounting structure, comprising a frame 1, wherein the frame 1 is provided with a second battery compartment 12 for mounting a lithium battery, and the second battery compartment 12 is open at the side edge; in this embodiment, a plurality of battery brackets 7 are arranged in the second battery compartment 12 in an up-down distribution; in other embodiments, only one battery bracket 7 can be arranged in the second battery compartment 12, and the number of quick-change batteries 4 and the required battery capacity can be selected by the person skilled in the art as needed. Furthermore, the person skilled in the art can understand that the number of layers of the battery bracket 7 limits the maximum number of quick-change batteries 4 that can be installed in the second battery compartment 12, and it is not necessary to arrange a quick-change battery 4 on each battery bracket 7. In this embodiment, the quick-change battery 4 is a lithium battery module that is independent and interchangeable, comprising a box body and a plurality of small battery cores arranged in the battery box body. In this embodiment, the quick-change battery 4 is a concept opposite to the conventional capacity lithium battery box in the field of forklifts. The battery box of the lithium battery forklift in the prior art comprises a box body, a plurality of battery cores arranged in the box body, and a plurality of necessary electrical elements such as contactors, signal collectors, BMS management systems, and instruments. Since a large installation space is required for the installation of these electrical elements, and the lithium battery needs to provide a large capacity, the plurality of battery boxes themselves also have a large volume, so that the overall volume of the battery box of the lithium battery forklift in the prior art is large, and these electrical elements are arranged in the box body, which is not convenient for maintenance. The volume and battery capacity of the quick-change battery 4 are smaller than the capacity of the standard battery box. Since the volume is small, the user can replace the quick-change battery 4 without the aid of tools. In this embodiment, the necessary electrical elements in the lithium battery box are arranged in an electrical box independently from the lithium battery box, so that the number of battery cores is reduced, and the volume and weight of the quick-change battery 4 box can be further reduced due to the independent arrangement of the electrical elements.​

[0027] The battery holder 7 is provided with an opening on one side, and the opening direction is consistent with the opening direction of the second battery compartment 12; the opening side of the battery holder 7 is hingedly provided with a side door flap 71, and the side door flap 71 is located at the opening of the second battery compartment 12; the side door flap 71 can be flipped between a closed position and an open position; in the closed position, the side door flap 71 is perpendicular to the bottom plate 72 of the battery holder 7, and the side door flap 71 is provided with a first locking mechanism for keeping it in the closed position; in the open position, the inner side of the side door flap 71 is flush with or below the bottom of the battery holder 7; two or more than two quick-change batteries 4 are arranged side by side on the battery holder 7, and the front ends of the quick-change batteries 4 are provided towards the opening side of the battery holder 7.

[0028] Through the above arrangement, on the one hand, the quick-change battery 4 is used for power supply, and those skilled in the art can set the number of quick-change batteries 4 and the number of quick-change batteries 4 connected to the power consumption circuit according to the actual required capacity. And because the quick-change battery 4 is small in size and weight, the user can replace the quick-change battery 4 without the help of tools. On the other hand, due to the arrangement of the side door flap 71, it is not necessary to additionally arrange a door plate for closing the opening of the second battery compartment 12, and the pulling direction of the quick-change battery 4 is consistent with the flipping direction of the side door flap 71, so that the operation space required for replacing the battery will not increase due to the arrangement of the side door flap 71.

[0029] As shown in Figure 1 and Figure 2 , in this embodiment, two layers of battery holders 7 are arranged in the second battery compartment 12, and the side door flap 71 can be flipped within a range of 90°; when the side door flap 71 is in the closed position, the two side door flaps 71 cooperate to close the side opening of the second battery compartment 12; when the side door flap 71 is in the open position, the inner side of the side door flap 71 is flush with the upper end surface of the bottom plate 72 of the battery holder 7 to support the extracted quick-change battery 4.

[0030] In the preferred embodiment, the side door flap 71 includes an inner side plate and an outer side plate, the inner side plate is a C-shaped bent plate, and the outer side plate is a flat plate; in the closed position, the outer side plate is flush with the side opening of the second battery compartment 12. The side door flap is arranged in two parts, on the one hand, the C-shaped bent plate can enhance the overall strength of the side door flap 71, and on the other hand, the outer side plate makes the appearance more simple and beautiful. And in the open position, the bottom of the outer side plate is located at the bottom of the battery holder, so that the side door flap 71 can be kept flush with the upper end surface of the bottom plate 72 of the battery holder 7 by limiting the cooperation of the bottom of the outer side plate and the bottom of the battery holder 7.

[0031] In combination with Figure 5As shown, the side door flap 71 in this embodiment is hinged to the front end of the battery bracket 7 through the hinge set 9, so as to realize the relatively flip connection of the side door flap 71 and the battery bracket 7.

[0032] As shown, Figure 3 As shown, the battery bracket 7 is divided into more than one battery mounting area arranged side by side, and the adjacent battery mounting areas are separated by the buffer strip 75. This arrangement can separate the quick-change batteries 4 in the adjacent battery mounting areas, preventing safety hazards caused by battery collision.

[0033] Preferably, the rear side and the front and rear sides of the battery bracket 7 are respectively provided with upwardly folded bending edges 73, and the bending edges 73 are respectively provided with buffer pads 74 towards the side of the quick-change battery 4. The buffer pad 74 can be made of rubber material, and the buffer pad 74 on the bending edge 73 realizes the pre-tightening of the quick-change battery 4 in the battery mounting area, so that the quick-change battery 4 is reliably installed. Further, as shown, Figure 4 As shown, the housing of the quick-change battery 4 is provided with a second locking mechanism, which locks the relative position of the quick-change battery 4 and the battery bracket 7 through the second locking mechanism and the battery bracket 7. Through the second locking mechanism, the quick-change battery 4 can be kept in the pre-tightening state with the buffer pad 74, preventing the quick-change battery 4 from shifting during vehicle driving. In this embodiment, the second locking mechanism includes a fixed frame 42 fixed on the housing of the quick-change battery 4, and a locking bolt 43 threadedly connected on the fixed frame 42, and the battery bracket 7 is provided with a locking hole corresponding to the locking bolt 43. The position of the quick-change battery 4 on the battery bracket 7 is locked and unlocked through the cooperation of the locking bolt 43 and the hole, and the quick-change battery 4 is convenient to disassemble.

[0034] Further, as shown, Figure 3 As shown, the bottom plate 72 of the battery bracket 7 is provided with a guide rail 76 arranged in the battery pulling direction in each battery mounting area, and the bottom of the battery box of the quick-change battery 4 is provided with a guide groove corresponding to the guide rail 76. The installation position of the quick-change is guided through the cooperation of the guide rail 76 and the guide groove, which facilitates the loading of the quick-change battery 4. In a preferred embodiment, the guide rail 76 is arranged as a circular arc in cross section, and the guide groove is arranged as a rectangle in cross section. In this way, under the condition of ensuring the basic function of the guide rail 76, the contact area of the quick-change battery 4 and the guide rail 76 can be reduced, and the quick-change battery 4 can be pulled more smoothly.

[0035] As shown, Figure 4As shown, in order to facilitate the operation of the quick-change battery 4 box, the quick-change battery 4 is provided with a handle 41 at least at the front end, and preferably provided with a handle 41 at both front and rear ends of the quick-change battery 4, so as to hold the quick-change battery 4. In this embodiment, the front end of the quick-change battery 4 box is provided with a wiring terminal, and the frontmost end of the fixing frame 42 is located in front of the frontmost end of the wiring terminal. In this way, it can be ensured that there is still sufficient wiring space between the side door flap 71 and the wiring terminal when the side door flap 71 is in the closed position.

[0036] Referring to Figure 1 and in combination with Figure 6 , the left and right ends of the side door flap 71 are respectively provided with a sunken platform, and a first locking mechanism is arranged in the sunken platform, the first locking mechanism comprising a spring 82 and a locking pin 81, the locking pin 81 being coaxially arranged with the extension direction of the spring 82; a locking hole is arranged on the frame 1 corresponding to the locking pin 81, when the side door flap 71 is in the closed position, the locking pin 81 is aligned with the locking hole on the same side, and the locking pin 81 is clamped into the locking hole on the same side under the action of the restoring force of the spring 82.

[0037] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A quick-change battery mounting structure comprising a vehicle frame, wherein a second battery compartment for mounting a lithium battery is provided on the vehicle frame, characterized in that, The second battery compartment side opening is provided with a battery bracket, or a plurality of battery brackets distributed in upper and lower layers; one side of the battery bracket is provided with an opening, and the opening direction is consistent with the opening direction of the second battery compartment; a side door flap is hingedly arranged at the opening side of the battery bracket, and the side door flap is located at the opening of the second battery compartment; the side door flap can be flipped between a closed position and an open position; when the side door flap is in the closed position, the side door flap is perpendicular to the bottom plate of the battery bracket, and a first locking mechanism is arranged on the side door flap for keeping the side door flap in the closed position; when the side door flap is in the open position, the inner side of the side door flap is flush with the bottom of the battery bracket or is located below the battery bracket. Two or more quick-change batteries are arranged side by side on the battery bracket, and the front ends of the quick-change batteries are arranged towards the opening side of the battery bracket.

2. The quick-change battery mounting structure according to claim 1, characterized by The battery bracket is divided into one or more battery mounting areas arranged side by side, and the adjacent battery mounting areas are separated by a buffer strip.

3. The quick-change battery mounting structure according to claim 2, characterized by A guide rail is arranged on the bottom plate of the battery bracket in each battery mounting area and in the battery pulling direction, and a guide groove is arranged on the bottom of the battery box of the quick-change battery corresponding to the guide rail.

4. The quick-change battery mounting structure according to claim 1, characterized by The quick-change battery is provided with a handle at least at the front end thereof.

5. The quick-change battery mounting structure according to claim 1, characterized by A second locking mechanism is arranged on the shell of the quick-change battery, and the second locking mechanism is used to connect and lock the relative position of the quick-change battery and the battery bracket.

6. The quick-change battery mounting structure according to claim 5, characterized by The second locking mechanism comprises a fixed frame fixed on the shell of the quick-change battery, a locking bolt threadedly connected to the fixed frame, and a locking hole arranged on the battery bracket corresponding to the locking bolt.

7. The quick-change battery mounting structure according to claim 1, characterized by The rear side and the front and rear sides of the battery bracket are respectively provided with upwardly folded bending edges, and the bending edges are respectively provided with buffer pads towards one side of the quick-change battery.

8. The quick-change battery mounting structure according to claim 6, characterized by The front end of the battery box of the quick-change battery is provided with a wiring terminal, and the frontmost end of the fixed frame is located in front of the frontmost end of the wiring terminal.

9. The quick-change battery mounting structure according to claim 1, characterized by The left and right ends of the side door flap are respectively provided with sunken tables, and the sunken tables are provided with first locking mechanisms, the first locking mechanisms comprising springs and locking pins coaxially arranged in the extension direction of the springs; the frame is provided with locking holes corresponding to the locking pins, and when the side door flap is in the closed position, the locking pins are aligned with the locking holes on the same side, and the locking pins are clamped into the locking holes on the same side under the action of the restoring force of the springs.

10. The quick-change battery mounting structure according to claim 1, characterized by The side door flap comprises an inner side plate and an outer side plate, the inner side plate is a C-shaped bending plate, and the outer side plate is a flat plate, and in the closed position, the outer side plate is flush with the side opening of the second battery compartment.

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