Truck bottom battery quick-changing structure and vehicle

Abstract

The invention relates to a truck bottom battery quick-change structure and a vehicle. The truck bottom battery quick-change structure comprises a quick-change support and a battery pack. The battery pack comprises a battery locking beam, a hook, a tension spring, a connecting rod, a sleeve shaft, an unlocking ejector rod and a reset spring. The two sides of the front face of the battery locking beam are each rotationally connected with at least one hook, and the hooks located on the two sides of the battery locking beam are symmetrical with the battery locking beam as the center line. The front surface of the quick-change bracket is connected with a quick-connection lock shaft matched with the hook; one end of the tension spring is connected below the opening of the hook, and the other end of the tension spring is connected to the battery locking beam; the two sides of the front face of the battery locking beam are each rotationally connected with at least one hook matched with the quick-connection lock shaft. The bottoms of the hooks located on one side of the front face of the battery locking beam are rotationally connected to the same connecting rod. Sleeve shafts are connected to the positions, close to the middle line of the battery locking beam, under the two hooks in front of the battery locking beam, unlocking ejector rods are installed in the sleeve shafts, and reset springs are arranged on the unlocking ejector rods in a sleeving mode.

Description

Technical Field

[0001] The present invention relates to the technical field of truck battery replacement, and more specifically, to a truck bottom battery quick-change structure and a vehicle. Background Art

[0002] The existing battery pack installation methods of electric vehicles are generally divided into fixed installation and replaceable installation. The fixed installation battery pack is generally fixed on the car; while the replaceable battery pack is generally installed in a movable manner. The battery pack can be removed at any time for replacement or charging, and then installed on the vehicle body after replacement or charging.

[0003] In the prior art, vehicles usually use a whole pack battery replacement. A single battery pack is heavy, has high requirements for the battery replacement equipment used to achieve the battery replacement, is inflexible to use, and if the battery pack needs to be replaced, the entire battery pack must be replaced. These disadvantages are particularly significant when the vehicle is a heavy truck.

[0004] In addition, for the current snap-on locking structure, in the process of locking the battery pack, the lock shaft usually rises to a position relative to the locking mechanism and then moves horizontally to a position, that is, the movement process of the battery pack is relatively complicated, and the requirements for the battery replacement equipment will be relatively high, which will also affect the efficiency of the battery pack locking, and further affect the battery replacement efficiency of the vehicle;

[0005] On the other hand, in existing battery replacement, battery disassembly and unlocking is relatively complicated, and there is a large error in the precise positioning of the battery installation, making it difficult to achieve the requirements of rapid disassembly and installation.

[0006] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0007] The purpose of the present invention is to provide a battery quick-change structure and vehicle at the bottom of a truck. The installation and unlocking methods of the battery quick-change structure at the bottom of the truck are simple to operate, and there is no need for a more complicated battery replacement process, which is beneficial to reducing the requirements for battery replacement equipment. The locking efficiency and locking reliability of the battery pack are both high, thereby improving the efficiency of disassembly and assembly of the battery pack.

[0008] The present invention provides a battery quick-change structure at the bottom of a truck, comprising a quick-change bracket and a battery pack; the battery pack comprises a battery locking beam, a hook, a tension spring, a connecting rod, a sleeve shaft, an unlocking push rod and a reset spring; at least one of the hooks is rotatably connected to both sides of the front of the battery locking beam, and the hooks located on both sides of the battery locking beam are symmetrical about the center line of the battery locking beam; the quick-connect lock shaft matched with the hook is connected to the front of the quick-change bracket; one end of the tension spring is connected to the bottom of the hook opening, and the other end of the tension spring is connected to the battery locking beam. The spring is used to provide a pulling force away from the hook opening direction; at least one hook that cooperates with the quick-connect lock shaft is rotatably connected to both sides of the front of the battery locking beam; the bottom of the hook located on the front side of the battery locking beam is rotatably connected to the same connecting rod; the sleeve shaft is connected just below the two hooks near the center line of the battery locking beam in front of the battery locking beam, and the unlocking push rod is installed in the sleeve shaft. A reset spring is sleeved on the unlocking push rod, and the reset spring is used to provide a force for the unlocking push rod to move away from the hook.

[0009] When the unlocking push rod is provided with an upward force, the unlocking push rod moves upward, pushing the hook to rotate around the pin shaft to the unlocking position, and the hook drives the hooks on the other connecting rods on the same side to rotate around the pin shaft to the unlocking position through the connecting rod; after the hook rotates, it is separated from the quick-connect lock shaft to unlock the battery pack; when the external force of the unlocking push rod is removed, the unlocking push rod returns to the initial position under the action of the reset spring, and the hook returns to the locked position under the action of the tension spring; when the battery pack moves upward, the top inclined surface of the hook will hit the quick-connect lock shaft, and the quick-connect lock shaft and the hook force component push the hook to rotate around the pin shaft; the quick-connect lock shaft pushes the hook to rotate outward until the quick-connect lock shaft passes over the hook tip, the hook is reset under the action of the tension spring, the quick-connect lock shaft reaches the locked position, and the tension spring pulls the hook back to the zero position to achieve quick locking.

[0010] Furthermore, one, two, three or four hooks are rotatably connected to both sides of the front of the battery locking beam.

[0011] Furthermore, the battery pack also includes a positioning plate, which is connected to the battery locking beam, and at least one positioning notch is provided on the positioning plate, and guide bevels are provided on both sides of the positioning notch; a positioning lock shaft that cooperates with the positioning notch is connected to the quick-change bracket; when the hook is hung on the quick-connect lock shaft, the positioning lock shaft is located in the positioning notch.

[0012] By adopting the above technical solution, the positioning lock shaft on the quick-change bracket, the positioning lock shaft and the positioning plate are precisely matched to ensure the precise alignment of the hook and the quick-connect lock shaft, ensuring that the hook can be accurately hung.

[0013] Furthermore, the battery pack also includes a water-electricity connector, which is installed on one end of the battery locking beam.

[0014] Furthermore, the battery pack also includes a pre-tensioning spring, and the pre-tensioning springs are connected to both ends of the battery locking beam.

[0015] By adopting the above technical solution, the preload springs on both sides of the battery pack enable the battery pack to maintain a certain preload state between the battery pack and the quick-change bracket in the Z direction, thereby improving the stability of the connection.

[0016] Furthermore, the battery pack also includes a limiting bolt, which is connected to the battery locking beam and is used to prevent the hook from rotating sideways.

[0017] The present invention also provides a vehicle, comprising the above-mentioned truck bottom battery quick-change structure.

[0018] Furthermore, the vehicle includes a truck beam, and the quick-change bracket is fixedly connected to both sides of the truck beam.

[0019] The battery quick-change structure at the bottom of a truck provided by the present invention has the advantages that when the unlocking push rod is provided with an upward force, the unlocking push rod moves upward, pushing the hook to rotate around the pin shaft to the unlocking position, and the hook drives the hooks on the other connecting rods on the same side to rotate around the pin shaft to the unlocking position through the connecting rod; after the hook rotates, it is separated from the quick-connect lock shaft to unlock the battery pack; when the external force of the unlocking push rod is removed, the unlocking push rod returns to the initial position under the action of the return spring, and the hook returns to the locked position under the action of the tension spring; when the battery pack moves upward, the top inclined surface of the hook will hit the quick-connect lock shaft, and the quick-connect lock shaft and the hook force component push The hook rotates around the pin shaft; the quick-connect lock shaft pushes the hook to rotate outward until the quick-connect lock shaft passes over the hook tip, the hook is reset under the action of the tension spring, the quick-connect lock shaft reaches the locking position, and the tension spring pulls the hook back to the zero position to achieve rapid locking; the battery quick-change structure at the bottom of the truck of the present invention is respectively fixed to the outside of the truck beam by two quick-change brackets, and the battery pack is connected to the quick-change bracket by a hook, which can be quickly installed and unlocked; the installation and unlocking method of the present invention is simple to operate, and there is no need for a more complicated battery replacement process, which is beneficial to reducing the requirements for battery replacement equipment, the locking efficiency and locking reliability of the battery pack are relatively high, and the disassembly and assembly efficiency of the battery pack is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1A schematic front structural diagram of a quick-change battery structure at the bottom of a truck provided in an embodiment of the present invention.

[0021] Figure 2 for Figure 1 A plan view of the combination of the hook, tension spring, connecting rod, unlocking push rod and return spring of the battery quick-change structure at the bottom of a medium-sized truck.

[0022] Figure 3 for Figure 1 Schematic diagram of the planar structure of the battery pack with a quick-change battery structure at the bottom of a medium-sized truck.

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the quick-change battery at the bottom of a medium truck.

[0024] Figure 5 for Figure 1 Schematic diagram of the top view of the quick-change battery structure at the bottom of the medium truck.

[0025] The reference numerals and components involved in the drawings are as follows:

[0026] 100, quick-change bracket 110, quick-connect lock shaft 120, positioning lock shaft

[0027] 200, battery pack 210, battery locking beam 211, preload spring

[0028] 212, limit bolt 220, hook 230, tension spring

[0029] 240, connecting rod 250, sleeve shaft 260, unlocking push rod

[0030] 270, return spring 280, positioning plate 281, positioning notch

[0031] 282, guide bevel 290, water and electricity connector 300, truck beam DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence.

[0034] Example 1

[0035] Figure 1 A front structural diagram of a quick-change battery structure for a truck bottom provided by an embodiment of the present invention, Figure 2 for Figure 1 A schematic diagram of the combination of the hook, tension spring, connecting rod, unlocking rod and return spring of the quick-change battery structure at the bottom of a medium truck. Figure 3 for Figure 1 Schematic diagram of the planar structure of the battery pack with a quick-change battery structure at the bottom of a medium-sized truck. Please refer to Figure 1 , Figure 2 , Figure 3 The battery quick-change structure at the bottom of a truck provided by an embodiment of the present invention includes a quick-change bracket 100 and a battery pack 200; the battery pack 200 includes a battery locking beam 210, a hook 220, a tension spring 230, a connecting rod 240, a sleeve shaft 250, an unlocking push rod 260 and a reset spring 270; at least one of the hooks 220 is rotatably connected to both sides of the front of the battery locking beam 210, and the hooks 220 located on both sides of the battery locking beam 210 are symmetrical about the midline of the battery locking beam 210; the quick-connect lock shaft 110 that cooperates with the hook 22 is connected to the front of the quick-change bracket 100; one end of the tension spring 230 is connected to the lower opening of the hook 220 The other end of the tension spring 230 is connected to the battery locking beam 210, and the tension spring 230 is used to provide a pulling force away from the opening direction of the hook 220; the bottom of the hook 220 located on the front side of the battery locking beam 210 can be rotatably connected to the same connecting rod 240; the sleeve shaft 250 is connected directly below the two hooks 220 near the center line of the battery locking beam 210 in front of the battery locking beam 210, and the unlocking push rod 260 is installed in the sleeve shaft 250. The unlocking push rod 260 is sleeved with a return spring 270, and the return spring 270 is used to provide a force for the unlocking push rod 260 to move away from the hook 220.

[0036] It should be noted that when an upward force is provided to the unlocking push rod 260, the unlocking push rod 260 moves upward, pushing the hook 220 to rotate around the pin axis to the unlocking position, and the hook 220 drives the hooks 220 on the other connecting rods 240 on the same side to rotate around the pin axis to the unlocking position through the connecting rod 240; after the hook 220 rotates, it separates from the quick-connect lock shaft 110 to unlock the battery pack 200; when the external force on the unlocking push rod 260 is removed, the unlocking push rod 260 returns to the initial position under the action of the return spring 270, and the hook 220 returns to the locked position under the action of the tension spring 230; when the battery pack 200 moves upward, the top inclined surface of the hook 220 will hit the quick-connect lock shaft 110, and the quick-connect lock shaft 110 and the hook 220 will push the hook 220 to rotate around the pin shaft; the quick-connect lock shaft 110 pushes the hook 220 to rotate outward until the quick-connect lock shaft 110 passes over the hook tip of the hook 220, and the hook 220 is reset under the action of the tension spring 230, and the quick-connect lock shaft 110 reaches the locked position, and the tension spring 230 pulls the hook 220 back to the zero position to achieve rapid locking.

[0037] The battery quick-change structure at the bottom of the truck of the present invention is fixed to the outside of the truck beam 300 by two quick-change brackets 100 respectively, and the battery pack 200 is connected to the quick-change bracket 100 by a hook 220, which can be quickly installed and unlocked; the installation and unlocking method of the present invention is simple to operate, and there is no need for a more complicated battery replacement process, which is beneficial to reducing the requirements for battery replacement equipment. The locking efficiency and locking reliability of the battery pack 200 are relatively high, which improves the disassembly and assembly efficiency of the battery pack 200.

[0038] Further references Figure 3 In the present invention, one, two, three or four hooks are rotatably connected on both sides of the front of the battery locking beam (that is, the present invention can include 4, 8, 12 and 16 hooks in total); the battery pack 200 also includes a positioning plate 280, which is connected to the battery locking beam 210, and at least one positioning notch 281 is provided on the positioning plate 280, and guide bevels 282 are provided on both sides of the positioning notch 281; a positioning lock shaft 120 that cooperates with the positioning notch 281 is connected to the quick-change bracket 100; when the hook 220 is hung on the quick-connect lock shaft 110, the positioning lock shaft 120 is located in the positioning notch 281.

[0039] It should be noted that the positioning lock shaft 120 on the quick-change bracket 100 and the precise fit between the positioning lock shaft 120 and the positioning plate 280 can ensure the precise alignment of the hook 220 and the quick-connect lock shaft 110, ensuring that the hook 220 can be accurately hooked.

[0040] Figure 5 for Figure 1A top view of the quick-change battery structure at the bottom of a mid-sized truck. Figure 5 The battery pack 200 of the present invention further includes a water-electricity connector 290 , which is mounted on one end of the battery locking beam 210 .

[0041] It should be noted that the water-electricity connector 290 can be automatically plugged in and out when the battery pack 200 is quickly replaced.

[0042] Further references Figure 1 , Figure 3 The battery pack 200 of the present invention further includes a preload spring 211 , and the preload spring 211 is connected to both ends of the battery locking beam 210 .

[0043] It should be noted that the preload springs on both sides of the battery pack 200 enable the battery pack 200 to maintain a certain preload state between the quick-change bracket 100 and the Z direction, thereby improving the stability of the connection.

[0044] Further references Figure 2 The battery pack 200 of the present invention further includes a limiting bolt 212, which is connected to the battery locking beam 210 to prevent the hook 220 from rotating; specifically, the limiting bolt 212 is located on a side of the hook 220 away from the opening of the hook 220.

[0045] It should be noted that the limiting bolt 212 on the outside of the hook 220 prevents the battery pack 200 from being in a fixed position when it is not hooked to the quick-change bracket 100 .

[0046] Figure 4 for Figure 1 Schematic diagram of the quick-change structure of the battery at the bottom of the truck. Please refer to Figure 4 The present invention also provides a vehicle, comprising the above-mentioned truck bottom battery quick-change structure.

[0047] Furthermore, the vehicle includes a truck beam 300, and the quick-change bracket 100 is fixedly connected to both sides of the truck beam 300. It should be noted that, for other technical features of the vehicle, please refer to the prior art, which will not be repeated here.

[0048] Based on the above description, it can be seen that the advantages of the present invention are:

[0049] 1. The quick-change battery structure at the bottom of a truck of the present invention, when the unlocking push rod 260 is provided with an upward force, the unlocking push rod 260 moves upward, pushing the hook 220 to rotate around the pin shaft to the unlocking position, and the hook 220 drives the hooks 220 on the other connecting rods 240 on the same side to rotate around the pin shaft to the unlocking position through the connecting rod 240; after the hook 220 rotates, it separates from the quick-connect lock shaft 110 to unlock the battery pack 200; when the external force on the unlocking push rod 260 is removed, the unlocking push rod 260 returns to the initial position under the action of the return spring 270 The hook 220 returns to the locked position under the action of the tension spring 230; when the battery pack 200 moves upward, the top inclined surface of the hook 220 hits the quick-connect lock shaft 110, and the quick-connect lock shaft 110 and the hook 220 push the hook 220 to rotate around the pin shaft; the quick-connect lock shaft 110 pushes the hook 220 to rotate outward until the quick-connect lock shaft 110 passes over the hook tip of the hook 220, and the hook 220 is reset under the action of the tension spring 230, and the quick-connect lock shaft 110 reaches the locked position, and the tension spring 230 pulls the hook 220 back to the zero position, thereby achieving rapid locking;

[0050] 2. The battery quick-change structure at the bottom of the truck of the present invention is fixed to the outside of the truck beam 300 by two quick-change brackets 100 respectively, and the battery pack 200 is connected to the quick-change bracket 100 by a hook 220, which can be quickly installed and unlocked; the installation and unlocking method of the present invention is simple to operate, and there is no need for a more complicated battery replacement process, which is beneficial to reducing the requirements for battery replacement equipment. The locking efficiency and locking reliability of the battery pack 200 are relatively high, which improves the disassembly and assembly efficiency of the battery pack 200.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A quick-change battery structure at the bottom of a truck, characterized in that: The invention comprises a quick-change bracket (100) and a battery pack (200); the battery pack (200) comprises a battery locking beam (210), a hook (220), a tension spring (230), a connecting rod (240), a sleeve shaft (250), an unlocking push rod (260) and a reset spring (270); at least one hook (220) is rotatably connected to both sides of the front of the battery locking beam (210), and the hooks (220) located on both sides of the battery locking beam (210) are symmetrical about the midline of the battery locking beam (210); The quick-change bracket (100) is connected to the front thereof with the quick-connect lock shaft (110) that cooperates with the hook (220); One end of the tension spring (230) is connected below the opening of the hook (220), and the other end of the tension spring (230) is connected to the battery locking beam (210), and the tension spring (230) is used to provide a pulling force in a direction away from the opening of the hook (220); The bottom of the hook (220) located on the front side of the battery locking beam (210) can be rotatably connected to the same connecting rod (240); The sleeve shaft (250) is connected to the front of the battery locking beam (210) and directly below the two hooks (220) close to the center line of the battery locking beam (210). The unlocking push rod (260) is installed in the sleeve shaft (250). The unlocking push rod (260) is sleeved with a return spring (270). The return spring (270) is used to provide a force for the unlocking push rod (260) to move away from the hook (220).

2. The quick-change battery structure at the bottom of a truck according to claim 1, characterized in that: One, two, three or four hooks (220) are rotatably connected to both sides of the front of the battery locking beam (210).

3. The quick-change battery structure at the bottom of a truck according to claim 1, characterized in that: The battery pack (200) further comprises a positioning plate (280), the positioning plate (280) being connected to the battery locking beam (210), at least one positioning notch (281) being provided on the positioning plate (280), and guide bevels (282) being provided on both sides of the positioning notch (281); A positioning lock shaft (120) that cooperates with the positioning notch (281) is connected to the quick-change bracket (100); When the hook (220) is hung on the quick-connect lock shaft (110), the positioning lock shaft (120) is located in the positioning notch (281).

4. The quick-change battery structure at the bottom of a truck according to claim 1, characterized in that: The battery pack (200) further comprises a preload spring (211), and both ends of the battery locking beam (210) are connected to the preload spring (211).

5. The quick-change battery structure at the bottom of a truck according to claim 1, characterized in that: The battery pack (200) further comprises a limiting bolt (212), wherein the limiting bolt (212) is connected to the battery locking beam (210) and is used to prevent the hook (220) from rotating.

6. A vehicle, characterized in that: The vehicle comprises the truck bottom battery quick-change structure as described in any one of claims 1-5.

7. The vehicle according to claim 6, characterized in that The vehicle comprises a truck beam (300), and the quick-change bracket (100) is fixedly connected to both sides of the truck beam (300).

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