A new energy vehicle battery replacement battery pack positioning locking and unlocking linkage structure

Abstract

The utility model relates to new energy automobile battery replacement technical field, and disclose a new energy automobile battery replacement battery package positioning locking and unlocking linkage structure. This new energy automobile battery replacement battery package positioning locking and unlocking linkage structure, including locking ring and cylindrical shell, the inside of locking ring is equipped with the limit protruding that is left and right symmetrical distribution, the inside rotation of cylindrical shell is connected with the cylindrical barrel extending to its upper, the outside of cylindrical barrel is equipped with the arc hole that is front and rear center symmetry distribution, this device have automatic reset and efficient operation, locking reliability and high security, anti -pollution and strong durability etc. advantage, solved the battery package locking structure in the prior art more adopts bolt fixed and buckle type design, bolt fixed and buckle type mechanism rely on manual operation or simple mechanical cooperation, easy because vehicle vibration leads to loosening, there is the hidden danger that battery package shifts or falls off, influence the problem of driving safety.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping technology for new energy vehicles, specifically a linkage structure for positioning, locking, and unlocking battery packs in new energy vehicles. Background Technology

[0002] With the rapid development of the new energy vehicle industry, battery swapping, as an efficient energy replenishment method, has received widespread attention due to its ability to significantly shorten replenishment time. During the battery swapping process, the rapid and precise locking and unlocking of the battery pack and the vehicle's battery compartment is a crucial step in ensuring the safety and efficiency of the swapping process.

[0003] In existing technologies, battery pack locking structures mostly adopt bolt fixing and snap-on designs. Bolt fixing and snap-on mechanisms rely on manual operation or simple mechanical cooperation, which are prone to loosening due to vehicle vibration, posing a risk of battery pack displacement or detachment, affecting driving safety.

[0004] Therefore, a linkage structure for positioning, locking and unlocking of battery packs in new energy vehicles is proposed to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a linkage structure for positioning, locking, and unlocking battery packs in new energy vehicles. It features automatic reset and efficient operation, high locking reliability and safety, and strong anti-pollution and durability. This solves the problem that existing battery pack locking structures often use bolt fixing and snap-on designs, which rely on manual operation or simple mechanical cooperation and are prone to loosening due to vehicle vibration, posing a risk of battery pack displacement or detachment and affecting driving safety.

[0007] (II) Technical Solution

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A positioning locking and unlocking linkage structure for a battery pack of a new energy vehicle includes a locking ring and a cylindrical shell. The inner side of the locking ring is provided with limiting protrusions that are symmetrically distributed from left to right. The cylindrical shell is rotatably connected to a cylindrical tube extending above it. The outer side of the cylindrical tube is provided with arc-shaped holes that are symmetrically distributed from front to back. The top of the cylindrical tube is fixedly connected with a locking shaft that is adapted to the locking ring. The outer side of the locking shaft is provided with an annular locking groove that is adapted to the limiting protrusions. The outer side of the upper end of the locking shaft is provided with a guide groove that is symmetrically distributed from front to back, communicates with the annular locking groove, and is adapted to the limiting protrusions. The inner cavity sidewall of the cylindrical shell is provided with a reset guide assembly. The bottom of the cylindrical shell is provided with a top rod that extends into the cylindrical tube. The outer side of the upper end of the top rod is fixedly connected with connecting rods that are symmetrically distributed from front to back and extend into the arc-shaped holes respectively. The outer side of the top rod is fixedly connected with a stop plate sleeved on the outer side of the reset guide assembly.

[0009] The beneficial effects of this utility model are:

[0010] This new energy vehicle battery pack positioning and locking linkage structure features a locking ring mounted on the vehicle body. A cylindrical shell is embedded inside the outer edge of the battery pack and is adapted to the locking ring. The battery pack lifting device contains an electric push rod that is aligned with the cylindrical shell, and the output end of the electric push rod is aligned with the top rod. During battery pack installation, the battery pack lifting device lifts the battery pack, allowing it to enter the battery compartment at the vehicle body. During this process, the control module causes the output end of the electric push rod to simultaneously push the top rod, which in turn compresses the reset guide assembly, causing the connecting rod to slide along the arc-shaped hole. This drives the cylindrical cylinder and locking shaft to rotate 90°, thus activating the guide rod on the outer side of the locking shaft. The guide grooves are aligned with the limiting protrusions. As the battery pack rises, the locking shaft inserts into the locking ring, and the limiting protrusions enter the annular locking groove along the guide grooves. This causes the output end of the electric push rod to retract, the reset guide assembly to restore its deformation, and the abutment plate and top rod to reset. Simultaneously, the connecting rod drives the cylindrical tube and locking shaft to reverse and reset, causing the limiting protrusions to rotate inside the annular locking groove and displace the guide grooves, thus completing the locking. When the battery pack is removed, the battery pack lifting device rises and contacts the bottom of the battery pack. The control module causes the output end of the electric push rod to simultaneously push the top rod, causing the locking shaft to rotate and align the guide grooves with the limiting protrusions, thus releasing the lock and allowing the battery pack to descend with the battery pack lifting device.

[0011] It has the advantages of automatic reset and efficient operation.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the reset guide assembly includes an assembly ring, guide rods, and reset springs. The assembly ring is fixedly connected to the inner cavity sidewall of the cylindrical shell. A guide rod arranged in a ring array is fixedly connected between the bottom of the assembly ring and the inner cavity bottom wall of the cylindrical shell. A stop plate sleeved on the outside of the top rod is fixedly connected to the outside of the guide rod. A reset spring that abuts against the stop plate is sleeved on the outside of each guide rod.

[0014] The beneficial effects of adopting the above-mentioned further solution are that the guide rods are distributed in a ring array, providing multi-directional constraints for the abutment plate, ensuring that the top rod does not deviate or jam during vertical movement, improving the reliability of the locking shaft rotation, the return spring stores energy when the abutment plate is pressed, and after the output end of the electric push rod retracts, the return spring automatically releases to push the top rod to reset, reducing external power dependence, improving battery swapping efficiency, and preventing the locking shaft from rotating and unlocking due to vibration.

[0015] Furthermore, the outer diameter of the locking shaft is adapted to the inner diameter of the locking ring.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the locking shaft and the locking ring are tightly fitted, which can reduce the risk of loosening caused by vibration during vehicle operation and improve the safety of battery pack connection.

[0017] Furthermore, the interior of the cylindrical shell is fitted with a sealing ring that fits tightly against the outer side of the lower end of the top rod.

[0018] The beneficial effects of adopting the above-mentioned further solutions are that the sealing ring prevents external contaminants from entering the interior of the cylindrical shell, protects the internal components from corrosion or jamming, and extends the service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the locking ring and columnar shell structure of this utility model;

[0021] Figure 3 This is an enlarged schematic diagram of the structure at point a of this utility model.

[0022] In the diagram: 1. Locking ring; 2. Cylindrical shell; 3. Limiting protrusion; 4. Cylindrical cylinder; 5. Arc-shaped hole; 6. Locking shaft; 7. Annular locking groove; 8. Guide groove; 9. Reset guide assembly; 901. Assembly ring; 902. Guide rod; 903. Reset spring; 10. Top rod; 11. Connecting rod; 12. Abutment plate; 13. Sealing ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the embodiments, by Figure 1-3 This invention discloses a positioning, locking, and unlocking linkage structure for a battery pack in a new energy vehicle. The structure includes a locking ring 1 and a cylindrical shell 2. The inner side of the locking ring 1 has symmetrically distributed limiting protrusions 3. A cylindrical tube 4 extending upwards is rotatably connected inside the cylindrical shell 2. The outer side of the cylindrical tube 4 has arc-shaped holes 5 symmetrically distributed front and rear centers. A locking shaft 6, adapted to the locking ring 1, is fixedly connected to the top of the cylindrical tube 4. The outer side of the locking shaft 6 has a ring adapted to the limiting protrusions 3. The locking groove 7 is provided. The outer side of the upper end of the locking shaft 6 is provided with a guide groove 8 that is symmetrically distributed front and back and communicates with the annular locking groove 7 and is adapted to the limiting protrusion 3. The inner cavity side wall of the columnar shell 2 is provided with a reset guide assembly 9. The bottom of the columnar shell 2 is provided with a top rod 10 that extends into the inside of the columnar cylinder 4. The outer side of the upper end of the top rod 10 is fixedly connected with connecting rods 11 that are symmetrically distributed front and back and extend into the arc-shaped hole 5 respectively. The outer side of the top rod 10 is fixedly connected with a stop plate 12 that is sleeved on the outer side of the reset guide assembly 9.

[0025] The outer diameter of the locking shaft 6 is adapted to the inner diameter of the locking ring 1;

[0026] The reset guide assembly 9 includes an assembly ring 901, a guide rod 902, and a reset spring 903. The assembly ring 901 is fixedly connected to the inner cavity sidewall of the cylindrical shell 2. The bottom of the assembly ring 901 and the bottom wall of the inner cavity of the cylindrical shell 2 are fixedly connected to the guide rods 902 arranged in a ring array. The outside of the top rod 10 is fixedly connected to the abutment plate 12 sleeved on the outside of the guide rod 902. The outside of the guide rod 902 is fitted with a reset spring 903 that abuts against the abutment plate 12.

[0027] The interior of the cylindrical shell 2 is fitted with a sealing ring 13 that fits tightly against the outer side of the lower end of the top rod 10.

[0028] Working principle:

[0029] Step 1: The battery pack lifting device lifts the battery pack to the upper vehicle battery compartment. During this process, the control module activates the electric push rod, which pushes the top rod 10 to move upward. The bottom plate 12 compresses the return spring 903, and the connecting rod 11 slides along the arc-shaped hole 5, driving the cylindrical tube 4 and the locking shaft 6 to rotate 90°. The guide groove 8 aligns with the limiting protrusion 3.

[0030] Step 2: As the battery pack continues to rise until it enters the battery compartment, the locking shaft 6 is inserted into the locking ring 1, and the limiting protrusion 3 enters the annular locking groove 7 along the guide groove 8. After the electric push rod retracts, the reset spring 903 pushes the abutment plate 12 and the top rod 10 to reset. The connecting rod 11 drives the locking shaft 6 to rotate 90°, so that the limiting protrusion 3 is offset from the guide groove 8 in the annular locking groove 7, thus completing the locking.

[0031] Step 3: When removing the battery pack, the electric push rod pushes the top rod 10 again, causing the locking shaft 6 to rotate until the guide groove 8 is aligned with the limiting protrusion 3, and the battery pack can then be released as the lifting device descends.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning locking and unlocking linkage structure for a battery pack in a new energy vehicle, comprising a locking ring (1) and a cylindrical shell (2), characterized in that: The inner side of the locking ring (1) is provided with limiting protrusions (3) symmetrically distributed from left to right. The cylindrical shell (2) is rotatably connected to a cylindrical tube (4) extending above it. The outer side of the cylindrical tube (4) is provided with arc-shaped holes (5) symmetrically distributed from front to back. The top of the cylindrical tube (4) is fixedly connected with a locking shaft (6) adapted to the locking ring (1). The outer side of the locking shaft (6) is provided with an annular locking groove (7) adapted to the limiting protrusions (3). The outer side of the upper end of the locking shaft (6) is provided with an annular locking groove (7) symmetrically distributed from front to back. A guide groove (8) is symmetrically distributed and communicates with the annular locking groove (7) and is adapted to the limiting protrusion (3). The inner cavity sidewall of the columnar shell (2) is provided with a reset guide assembly (9). The bottom of the columnar shell (2) is provided with a top rod (10) extending into the inside of the columnar cylinder (4). The outer side of the upper end of the top rod (10) is fixedly connected with connecting rods (11) that are symmetrically distributed front and back and extend into the inside of the arc-shaped hole (5). The outer side of the top rod (10) is fixedly connected with a stop plate (12) sleeved on the outside of the reset guide assembly (9).

2. The positioning locking and unlocking linkage structure for a new energy vehicle battery pack according to claim 1, characterized in that: The outer diameter of the locking shaft (6) is adapted to the inner diameter of the locking ring (1).

3. The positioning locking and unlocking linkage structure for a new energy vehicle battery pack according to claim 1, characterized in that: The reset guide assembly (9) includes an assembly ring (901), a guide rod (902), and a reset spring (903). The assembly ring (901) is fixedly connected to the inner cavity sidewall of the columnar shell (2). The bottom of the assembly ring (901) and the inner cavity bottom wall of the columnar shell (2) are fixedly connected to the guide rods (902) arranged in a ring array. The outside of the top rod (10) is fixedly connected to the abutment plate (12) sleeved on the outside of the guide rod (902). The outside of the guide rod (902) is sleeved with a reset spring (903) that abuts against the abutment plate (12).

4. The positioning locking and unlocking linkage structure for a new energy vehicle battery pack according to claim 1, characterized in that: The interior of the columnar shell (2) is fitted with a sealing ring (13) that fits tightly against the outer side of the lower end of the top rod (10).

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