Battery replacement lock mechanism, battery replacement base and battery replacement vehicle thereof

Abstract

The utility model discloses a kind of battery replacement lock mechanism and battery replacement base and battery replacement vehicle, the battery replacement lock mechanism is used to install to battery replacement base and lock solid battery replacement battery, the battery replacement base has first frame, the bottom of the battery replacement battery has the second frame matched with first frame, the battery replacement lock mechanism has fixed base fixedly installed in first frame and one end is pivoted with fixed base through first pivot, the end away from first pivot of the lock bolt of the lock bolt portion is equipped, the battery replacement lock mechanism further includes the drive portion of drive lock bolt reciprocating motion between first position and second position on fixed base, the drive portion has with fixed base fixed connection fixed part and the movable part that relative to fixed part telescopic, one end of the movable part is pivoted with lock bolt portion through second pivot, this battery replacement lock mechanism structure is simple and easy to manufacture and reliability is high, and battery replacement base and battery replacement vehicle using this lock mechanism have good stability and service life.

Description

Technical Field

[0001] This utility model relates to the field of battery swapping technology, and in particular to a battery swapping lock mechanism, its battery swapping base, and a battery swapping vehicle. Background Technology

[0002] As battery swapping technology matures and its market acceptance increases significantly, consumers are placing higher demands on its reliability and safety. For example, after a battery is installed in a battery swapping vehicle, it needs to be sufficiently stable during driving and easy to replace when necessary. This places high demands on the battery swapping lock mechanism. Existing battery swapping lock mechanisms are designed to be complex to ensure reliability, leading to increased costs and manufacturing difficulties. For instance, a battery box locking device disclosed in Chinese Invention Patent No. CN118867543B, published on January 7, 2025, effectively solves the clamping force problem by utilizing a lever combined with segmented guidance principles, achieving a smaller clamping force in the drive unit. The driving force can ensure that the battery box is pressed tightly, but the processing of multiple guide sections is difficult. For example, the locking mechanism used in a base assembly disclosed in Utility Model Patent No. CN222769235U, which was announced on April 18, 2025, also uses the lever principle to drive the swing arm to rotate to press the battery box. The manufacturing difficulty of this prior art is reduced, but the swing arm bears a large torque when it is pressed. In other words, this prior art has high requirements for the structural strength of the swing arm. If the swing arm deforms, the battery box may not be reliably fixed to the base.

[0003] In conclusion, it is necessary to develop a simple and reliable battery swapping lock mechanism and apply it to battery swapping bases and vehicles to overcome the shortcomings of the existing technologies. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a battery swapping lock mechanism with simple structure and high reliability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A battery swapping lock mechanism is provided for mounting on a battery swapping base to secure a battery. The battery swapping base has a first frame, and the bottom of the battery swapping unit has a second frame that matches the first frame. The battery swapping lock mechanism has a fixed base fixedly mounted on the first frame and a rotary lock part with one end pivotally connected to the fixed base via a first rotating shaft. The end of the rotary lock part away from the first rotating shaft has a locking tongue. After rotating around the first rotating shaft, the locking tongue has a first position that presses against the second frame and a second position that releases the second frame. The battery swapping lock mechanism also includes a drive part mounted on the fixed base to drive the locking tongue to reciprocate between the first position and the second position. The drive part has a fixed part fixedly connected to the fixed base and a movable part that extends and retracts relative to the fixed part. One end of the movable part is pivotally connected to the rotary lock part via the second rotating shaft.

[0007] Furthermore, the second pivot shaft passes through the end of the rotary lock near the bolt.

[0008] Furthermore, the rotating lock part is generally L-shaped with a long side and a short side, the locking tongue is located at one end of the short side, the second rotating shaft is installed at the other end of the short side, and the first rotating shaft is installed at the end of the long side away from the short side.

[0009] Furthermore, the fixed base is L-shaped and includes two side plates arranged in parallel to each other, a guide plate and an abutment plate connected between the two side plates. When the battery is locked, the abutment plate is arranged opposite to the second frame.

[0010] Furthermore, the abutment plate has a window on the side facing the second frame, and when the rotary lock is in the first position, the locking tongue extends at least partially out of the window and presses against the second frame to achieve the aforementioned locking.

[0011] Furthermore, the fixed base includes a mounting part fixedly connected to the lower ends of the two side plates. The mounting part includes two mutually perpendicular mounting plates, each of which is provided with a plurality of mounting holes. The fixed base is detachably connected to the first frame by bolts passing through the mounting holes.

[0012] Furthermore, the guide plate and the abutment plate are an integral structure and are located on different planes.

[0013] Furthermore, the fixed part of the drive unit is provided with a piston and a connecting rod fixedly connected to the piston, and the movable part is rotatably mounted on the connecting rod.

[0014] Furthermore, the fixed base is provided with a first sensor for detecting the first position of the latch and a second sensor for detecting the second position of the latch.

[0015] The purpose of this utility model is also to provide a battery swapping base, which is provided with multiple battery swapping lock mechanisms as described above.

[0016] Furthermore, the number of the battery swapping lock mechanisms is even, and the battery swapping lock mechanisms are symmetrically distributed in pairs on the battery swapping base.

[0017] The purpose of this utility model is also to provide a battery swapping vehicle, wherein the battery swapping vehicle is provided with at least one of the aforementioned battery swapping bases.

[0018] By adopting the aforementioned battery swapping lock mechanism with its simple structure, the battery swapping base and battery swapping vehicle can ensure the stability of the swapped battery during transportation, while also having lower cost advantages and higher reliability due to the ease of processing and manufacturing and simple assembly process of the battery swapping lock mechanism. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the battery swapping base and the battery before matching provided in this embodiment of the utility model;

[0020] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the battery swapping lock mechanism on the battery swapping base shown.

[0021] Figure 3 yes Figure 2 A front view schematic diagram of the battery swapping mechanism shown;

[0022] Figure 4 yes Figure 3 A partial cross-sectional view of the battery swapping lock mechanism along the AA direction in the locked state;

[0023] Figure 5 yes Figure 3 A partial cross-sectional view of the battery swapping lock mechanism along the AA direction in the unlocked state;

[0024] Figure 6 yes Figure 4 A side view of the rotary lock section shown.

[0025] In the picture:

[0026] 100. Battery swapping base; 10. Battery swapping lock mechanism; 11. First frame; 12. Fixed base; 121. Mounting part; 122. Side plate; 123. Abutment plate; 101. Bolt; 102. Mounting plate; 103. Window; 125. Guide plate; 13. Rotary lock part; 130. Lock tongue; 131. First rotating shaft; 132. Second rotating shaft; 14. Drive part; 141. Fixed part; 104. Piston; 105. Connecting rod; 142. Movable part; 151. First sensor; 152. Second sensor; 200. Battery swapping unit; 21. Second frame. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] Please see Figures 1 to 5As shown, this utility model embodiment provides a battery swapping lock mechanism 10 for mounting on a battery swapping base 100 to lock the battery swapping 200. Obviously, the battery swapping lock mechanism 10 can also be equivalently applied to other similar scenarios where the frame needs to be locked. For ease of understanding, this embodiment only uses the case of locking the battery swapping 200 as an example for illustration. The battery swapping base 100 is provided with a first frame 11, and the bottom of the battery swapping battery 200 is provided with a second frame 21 that matches the first frame 11. The battery swapping lock mechanism 10 has a fixed base 12 fixedly installed on the first frame 11 and a rotating lock part 13 pivotally connected to the fixed base 12 at one end via a first rotating shaft 131. The rotating lock part 13 is provided with a locking tongue 130 at one end away from the first rotating shaft 131. After rotating around the first rotating shaft 131, the locking tongue 130 has a first position that presses the second frame 21 and a second position that releases the second frame 21. When the locking tongue 130 is in the first position, the battery swapping lock mechanism 10 is in a locked state. When the locking tongue 130 is in the second position, the battery swapping lock mechanism 10 is in an unlocked state.

[0032] The battery swapping lock mechanism 10 further includes a drive unit 14 mounted on a fixed base 12 to drive the locking tongue 130 of the rotating lock part 13 to reciprocate between a first position and a second position. The drive unit 14 has a fixed part 141 fixedly connected to the fixed base 12 and a movable part 142 that extends and retracts relative to the fixed part 141. One end of the movable part 142 is pivotally connected to the rotating lock part 13 via a second rotating shaft 132. The second rotating shaft 132 is located on the physical path between the locking tongue 130 and the first rotating shaft 131, but not on the geometric segment between them. Preferably, the second rotating shaft 132 passes through the end of the rotating lock part 13 near the locking tongue 130. Furthermore, as... Figure 6 As shown, the ratio of the distance D1 from the center of the second rotating shaft 132 to the center of the first rotating shaft 131 to the distance D2 from the contact point between the latch 130 and the second frame 21 to the center of the first rotating shaft 131 is not less than 1. In other words, the distance D1 from the center of the second rotating shaft 132 to the center of the first rotating shaft 131 is not less than the distance D2 from the contact point between the latch 130 and the second frame 21 to the center of the first rotating shaft 131. The advantage of this design is that the pressure provided by the drive unit 14 can be transmitted to the latch 130 in an amplified manner, making the force transmission more effective, or in other words, it can reduce the requirement for the magnitude of the driving force on the drive unit 14. The first rotating shaft 131 and the second rotating shaft 132 are both cylindrical, and the centers of the first rotating shaft 131 and the second rotating shaft 132 are respectively equivalent to the centers of the circular mounting holes (unlabeled) for mounting the first rotating shaft 131 and the second rotating shaft 132, which will not be elaborated further.

[0033] The rotary locking part 13 is generally L-shaped with a long side and a short side. The locking tongue 130 is located at one end of the short side, the second rotating shaft 132 is installed at the other end of the short side, and the first rotating shaft 131 is installed at the end of the long side away from the short side. Preferably, the effective length D1 of the long side of the rotary locking part 13 is not less than three times the effective length D3 of the short side. The purpose of this design is to ensure that the range of motion of the rotary locking part 13 is large enough, so that the locking tongue 130 has sufficient clearance, allowing the second frame 21 to freely enter from top to bottom and exit from bottom to top without interference.

[0034] Furthermore, the fixing base 12 is L-shaped and includes two parallel side plates 122, a guide plate 125, and an abutment plate 123 connected between the two side plates 122. When the battery swapping unit 200 is locked, the abutment plate 123 is positioned face-to-face with the second frame 21. The rotary locking part 13 is located between the two side plates 122, and the driving part 14 is installed on the side of the side plate 122 away from the abutment plate 123. Further, the abutment plate 123 has a window 103 on the side facing the second frame 21. When the locking tongue 130 of the rotary locking part 13 is in the first position, the locking tongue 130 at least partially extends out of the window 103 and presses against the second frame 21 to achieve the aforementioned locking. When the locking tongue 130 retracts into the window 103, the aforementioned unlocking is achieved.

[0035] The fixed base 12 includes a mounting portion 121 fixedly connected to the lower ends of the two side plates 122. The mounting portion 121 includes two mutually perpendicular mounting plates 102, each with a plurality of mounting holes (not labeled). The fixed base 12 is detachably connected to the first frame 11 by bolts 101 passing through the mounting holes. Preferably, the guide plate 125 and the abutment plate 123 are an integral structure and are located on different planes after being formed at an angle by sheet metal bending processes. In some embodiments, to increase the wear resistance of the guide plate 125, the guide plate 125 and the abutment plate 123 can be separately disposed, or a layer of wear-resistant material can be covered on the surface of the guide plate 125, which will not be elaborated here.

[0036] The driving part 14 can be either a pneumatic cylinder or a hydraulic cylinder. A piston 104 is provided inside the fixed part 141, and the movable part 142 is rotatably mounted on the piston 104. Preferably, the movable part 142 is rotatably mounted on a connecting rod 105 fixedly connected to the piston 104. The reciprocating motion of the piston 104 drives the movable part 142 forward or backward, thereby driving the swing of the rotary lock part 13, which in turn allows the locking tongue part 130 to move between a first position and a second position, thus achieving the locking or unlocking action of the battery-changing lock mechanism 10. Obviously, in some embodiments, the driving part 14 can also be a motor as the driving device. In this case, rotatably connecting the movable part 142 to the telescopic end of the telescopic driving device can also achieve the technical effect of this utility model.

[0037] Furthermore, the fixed base 12 is equipped with a first sensor 151 for detecting whether the locking tongue 130 of the rotary locking part 13 is in a first position and a second sensor 152 for detecting whether the locking tongue 130 is in a second position. By setting the first sensor 151 and the second sensor 152, it is possible to clearly identify whether the battery swapping lock mechanism 10 is in a locked or unlocked state, so as to determine whether the battery swapping 200 is reliably installed and fixed on the battery swapping base 100. This is beneficial for monitoring the stability of the battery swapping 200 during transportation. The signals collected by the first sensor 151 and the second sensor 152 can also be used to automatically complete the battery swapping operation through the control system. In this embodiment, the first sensor 151 and the second sensor 152 are both position sensors. In some other embodiments, an angle sensor can also be used to identify the working state of the rotary locking part 13, which will not be elaborated here.

[0038] This embodiment of the invention also provides a battery swapping base 100, which includes a plurality of battery swapping lock mechanisms 10 as described above. Preferably, the number of battery swapping lock mechanisms 10 is even, and the battery swapping lock mechanisms 10 are symmetrically distributed in pairs on the first frame 11 of the battery swapping base 100. The symmetrically distributed battery swapping lock mechanisms 10 ensure that the second frame 21 of the battery swapping unit 200 is subjected to uniform force, thus ensuring the stability of the battery swapping unit 200 located on the battery swapping base 100. Furthermore, the first frame 11 has a rectangular frame structure, and battery swapping lock mechanisms are provided on both its long and short sides.

[0039] This utility model embodiment also provides a battery swapping vehicle, which includes a frame and a front end. The front end is equipped with a drive motor, and the front end can carry the frame to move by being powered by a battery swapping battery 200 mounted on the frame. At least one of the aforementioned battery swapping bases 100 is mounted on the frame of the battery swapping vehicle.

[0040] The battery swapping lock mechanism 10 conforming to this utility model has a simple and reliable structure and is easy to process and manufacture. The battery swapping base 100 and battery swapping vehicle using the aforementioned simple battery swapping lock mechanism 10 ensure the stability of the battery swapping 200 during transportation. At the same time, due to the ease of processing and manufacturing and the simple assembly process of the battery swapping lock mechanism 10, it has the advantages of lower cost, higher reliability and service life.

[0041] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A battery swapping lock mechanism (10) for mounting and locking a battery swapping unit (100) to a battery swapping base (100), wherein the battery swapping base (100) is provided with a first frame (11), and the bottom of the battery swapping unit (200) is provided with a second frame (21) that matches the first frame (11), characterized in that, The battery swapping lock mechanism (10) has a fixed base (12) fixedly installed on the first frame (11) and a rotary lock part (13) pivotally connected to the fixed base (12) at one end via a first rotating shaft (131). The rotary lock part (13) is provided with a latch (130) at one end away from the first rotating shaft (131). After the latch (130) rotates around the first rotating shaft (131), it has a first position pressing against the second frame (21) and a second position releasing the second frame (21). The battery swapping lock mechanism (10) also includes a drive part (14) installed on the fixed base (12) to drive the latch (130) to reciprocate between the first position and the second position. The drive part (14) has a fixed part (141) fixedly connected to the fixed base (12) and a movable part (142) that extends and retracts relative to the fixed part (141). One end of the movable part (142) is pivotally connected to the rotary lock part (13) via a second rotating shaft (132).

2. The battery swapping lock mechanism (10) according to claim 1, characterized in that: The second pivot (132) passes through the pivot lock part (13) near the end of the latch (130).

3. The battery swapping lock mechanism (10) according to claim 1, characterized in that: The rotating lock part (13) is generally L-shaped with a long side and a short side. The locking tongue (130) is located at one end of the short side, the second rotating shaft (132) is installed at the other end of the short side, and the first rotating shaft (131) is installed at the end of the long side away from the short side.

4. The battery swapping lock mechanism (10) according to claim 1, characterized in that: The fixed base (12) is L-shaped and includes two side plates (122) arranged in parallel with each other, a guide plate (125) and an abutment plate (123) connected between the two side plates (122). When the battery swapping unit (200) is in a locked state, the abutment plate (123) is arranged opposite to the second frame (21).

5. The battery swapping lock mechanism (10) according to claim 4, characterized in that: The abutment plate (123) has a window (103) on the side facing the second frame (21). When the rotary lock part (13) is in the first position, the locking tongue (130) extends at least partially out of the window (103) and presses against the second frame (21) to achieve the aforementioned locking.

6. The battery swapping lock mechanism (10) according to claim 4, characterized in that: The fixed base (12) includes a mounting part (121) fixedly connected to the lower end of the two side plates (122). The mounting part (121) includes two mounting plates (102) perpendicular to each other. The mounting plates (102) are provided with a plurality of mounting holes. The fixed base (12) is detachably connected to the first frame (11) by bolts (101) passing through the mounting holes.

7. The battery swapping lock mechanism (10) according to claim 4, characterized in that: The guide plate (125) and the abutment plate (123) are an integral structure and are located on different planes.

8. The battery swapping lock mechanism (10) according to any one of claims 1 to 7, characterized in that: The fixed part (141) of the drive unit (14) is provided with a piston (104) and a connecting rod (105) fixedly connected to the piston (104), and the movable part (142) is rotatably mounted on the connecting rod (105).

9. The battery swapping lock mechanism (10) according to any one of claims 1 to 7, characterized in that: The fixed base (12) is provided with a first sensor (151) for detecting the first position of the latch (130) and a second sensor (152) for detecting the second position of the latch (130).

10. A battery swapping base (100), characterized in that, The battery swapping base (100) includes a plurality of battery swapping lock mechanisms (10) as described in any one of claims 1 to 9.

11. The battery swapping base (100) according to claim 10, characterized in that, The number of the battery swapping lock mechanisms (10) is an even number, and the battery swapping lock mechanisms (10) are symmetrically distributed in pairs on the battery swapping base (100).

12. A battery-swapping vehicle, characterized in that, The battery swapping vehicle includes a frame and at least one battery swapping base (100) as described in claim 10, which is fixedly mounted on the frame.

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