Mechanical power battery quick-change mechanism

Abstract

The utility model relates to the field of battery quick change, and discloses a mechanical power battery quick change mechanism which comprises a vehicle body right longitudinal beam, two vehicle body cross beams are fixedly connected to the left side surface of the vehicle body right longitudinal beam, and a vehicle body left longitudinal beam is fixedly connected to the left side surfaces of the vehicle body cross beams. A battery pack is assembled between the vehicle body right longitudinal beam and the vehicle body left longitudinal beam, the outer side wall of the vehicle body right longitudinal beam and the outer side wall of the vehicle body left longitudinal beam are symmetrically and fixedly connected with two pulley mechanisms correspondingly in a welding mode, and the front surface of the outer side wall of the vehicle body left longitudinal beam is in threaded connection with a cam mechanism and a cam locking mechanism through bolts. Two battery pack fixing mechanisms are symmetrically and fixedly connected to the outer side wall of the vehicle body right longitudinal beam and the outer side wall of the vehicle body left longitudinal beam in a welding mode correspondingly, and the battery pack fixing mechanisms are used for fixing battery packs; the device is a mechanical power battery quick-change structure, and the structure is suitable for a single battery pack or a plurality of battery packs and is fixed through a battery pack bracket.

Description

Technical Field

[0001] The utility model relates to the field of rapid battery replacement, and more specifically to a mechanical power battery rapid replacement mechanism. Background Technique

[0002] With the rapid development of the new energy vehicle industry, the ownership of new energy vehicles in China has continued to grow rapidly. At the same time, related problems of new energy vehicles have gradually emerged. One of the problems that users are more concerned about for electric vehicles is the charging problem: not only the charging time is long, but also the driving range decreases as the number of battery charging times increases; this is a relatively critical pain point for operating users.

[0003] In response to this, some manufacturers have launched battery replacement solutions;

[0004] However, at present, most of the market is in the form of electro-hydraulic, electromagnetic and other structures, which have problems such as complex structure, high cost, and high maintenance cost. Content of the Utility Model

[0005] The main technical problem to be solved by the utility model is to provide a mechanical power battery rapid replacement mechanism, which can solve the problems of complex structure, high cost, and high maintenance cost existing in structures such as electromagnetic.

[0006] To solve the above technical problems, according to one aspect of the utility model, more specifically, it is a mechanical power battery rapid replacement mechanism, including a right longitudinal beam of the vehicle body. Two vehicle body cross beams are fixedly connected to the left side surface of the right longitudinal beam of the vehicle body. A left longitudinal beam of the vehicle body is fixedly connected to the left side surface of the vehicle body cross beam. A battery pack is assembled between the right longitudinal beam of the vehicle body and the left longitudinal beam of the vehicle body. Two pulley mechanisms are symmetrically and fixedly connected to the outer side walls of the right longitudinal beam of the vehicle body and the left longitudinal beam of the vehicle body by welding respectively. A cam mechanism and a cam locking mechanism are threadedly connected to the front surface of the outer side wall of the left longitudinal beam of the vehicle body by bolts. Two battery pack fixing mechanisms are symmetrically and fixedly connected to the outer side walls of the right longitudinal beam of the vehicle body and the left longitudinal beam of the vehicle body by welding respectively. The battery pack fixing mechanism is used for fixing the battery pack. Above the cam mechanism, a rocker arm mechanism is fixedly connected to the outer wall of the left longitudinal beam of the vehicle body. Below the cam mechanism, a cam locking mechanism is fixedly connected to the outer wall of the left longitudinal beam of the vehicle body. The rocker arm mechanism, the pulley mechanism and the battery pack fixing mechanism are jointly connected with a cable assembly.

[0007] Furthermore, the battery pack fixing mechanism includes a fixing seat. A rotating groove is opened inside the fixing seat. A battery fixing shaft locking block is rotatably connected to the inside of the rotating groove through a rotating shaft. A battery fixing shaft guiding groove is opened at the rear side of the fixing seat.

[0008] Further, the cam mechanism includes a fixed support. The inner cavity of the fixed support is connected with a cam through a cam hexagon head rotating shaft. A cam locking groove is formed on the outer side wall of the cam. A first spring is directly fixedly connected between the cam and the fixed support; above the cam mechanism, a rocker arm mechanism is welded and connected to the outer side wall of the left longitudinal beam of the vehicle body. The rocker arm mechanism includes a rocker arm fixing frame. The rocker arm fixing frame is fixedly connected to the outer wall of the left longitudinal beam of the vehicle body through bolts. A rocker arm is rotationally connected to the inner cavity of the rocker arm fixing frame through a hexagon head. The rear arm of the rocker arm is fixedly connected to the cable assembly; below the cam, a cam locking mechanism is fixedly connected to the outer side wall of the left longitudinal beam of the vehicle body through bolts. The cam locking mechanism includes a fixed bracket. A locking tongue is rotationally connected to the inside of the fixed bracket through a hexagon head. A second spring is directly fixedly connected between the front lower surface of the locking tongue and the inner upper surface of the fixed bracket.

[0009] The beneficial effects of a mechanical power battery quick replacement mechanism of the present utility model are as follows:

[0010] This device is a mechanical power battery quick replacement structure. This structure is applicable to a single battery pack and multiple battery packs (fixed through a battery pack bracket), can quickly replace the power battery, and because it is a mechanical structure, it has a simple structure, easy operation, low use cost, and low maintenance cost. Description of the Drawings

[0011] The following further describes the present utility model in detail with reference to the drawings and specific implementation methods.

[0012] Figure 1 It is a schematic diagram of the overall structure of a mechanical power battery quick replacement mechanism of the present utility model;

[0013] Figure 2 It is for the Figure 1 magnified structure schematic diagram at A of the battery pack fixing mechanism of a mechanical power battery quick replacement mechanism of the present utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the battery pack fixing mechanism of the battery pack fixing mechanism of a mechanical power battery quick replacement mechanism of the present utility model;

[0015] Figure 4 It is a schematic diagram of the structures of the cam mechanism, cam locking mechanism and rocker arm mechanism of a mechanical power battery quick replacement mechanism of the present utility model;

[0016] Figure 5 It is a schematic cross-sectional view of the cam locking mechanism of a mechanical power battery quick replacement mechanism of the present utility model.

[0017] In the figure: 1. Right longitudinal beam of the vehicle body; 2. Cross beam of the vehicle body; 3. Left longitudinal beam of the vehicle body; 4. Battery pack; 5. Pulley mechanism; 6. Cam locking mechanism; 7. Battery pack fixing mechanism; 8. Rocker arm mechanism; 9. Cable assembly; 10. Cam mechanism; 101. Fixed seat; 102. Fixing groove for battery fixing shaft; 103. Rotating groove; 104. Locking block of battery fixing shaft; 105. Guide groove for battery fixing shaft; 201. Fixed support; 202. Cam; 203. Cam locking groove; 204. Rocker arm fixing bracket; 205. Rocker arm; 206. Fixed bracket; 207. Lock tongue; 208. Chuck; 209. Second spring; 210. First spring. Detailed implementation mode

[0018] In the following, the present utility model will be described in detail with reference to the accompanying drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other.

[0019] According to one aspect of the present utility model, as Figures 1-4 shown, a mechanical quick replacement mechanism for power batteries is provided, including a right longitudinal beam (1) of the vehicle body. It is characterized in that: two cross beams (2) of the vehicle body are fixedly connected to the left side surface of the right longitudinal beam (1) of the vehicle body, a left longitudinal beam (3) of the vehicle body is fixedly connected to the left side surface of the cross beam (2), a battery pack (4) is assembled between the right longitudinal beam (1) and the left longitudinal beam (3) of the vehicle body, two pulley mechanisms (5) are symmetrically and fixedly connected to the outer side walls of the right longitudinal beam (1) and the left longitudinal beam (3) of the vehicle body by welding respectively, a cam mechanism (10) and a cam locking mechanism (6) are connected to the outer side wall of the left longitudinal beam (3) by bolt threads, two battery pack fixing mechanisms (7) are symmetrically and fixedly connected to the outer side walls of the right longitudinal beam (1) and the left longitudinal beam (3) of the vehicle body by welding respectively, the battery pack fixing mechanism (7) is used for fixing the battery pack (4), a rocker arm mechanism (8) is fixedly connected to the outer side wall of the left longitudinal beam (3) above the cam mechanism (10), a cam locking mechanism (6) is fixedly connected to the outer side wall of the left longitudinal beam (3) below the cam mechanism (10), and a cable assembly (9) is commonly connected to the rocker arm mechanism (8), the pulley mechanism (5) and the battery pack fixing mechanism (7);

[0020] This device is a mechanical quick replacement structure for power batteries. This structure is applicable to fixing a single battery pack and multiple battery packs through a battery pack bracket, can quickly replace the power battery, and because it is a mechanical structure, it has a simple structure, easy operation, low use cost, and low maintenance cost.

[0021] In this embodiment, the cam mechanism (10) includes a fixed support (201). The inner cavity of the fixed support (201) is connected with a cam (202) through a cam hexagon head rotating shaft. A cam locking groove (203) is formed on the outer side wall of the cam (202). A first spring (210) is directly fixedly connected between the cam (202) and the fixed support (201). Above the cam mechanism (10), a rocker arm mechanism (8) is welded to the outer side wall of the left longitudinal beam (3) of the vehicle body. The rocker arm mechanism (8) includes a rocker arm fixing bracket (204). The rocker arm fixing bracket (204) is fixedly connected to the outer wall of the left longitudinal beam (3) of the vehicle body through bolts. A rocker arm (205) is rotatably connected to the inner cavity of the rocker arm fixing bracket (204) through a hexagon head. The rear arm of the rocker arm (205) is fixedly connected to the cable assembly (9). Below the cam (202), a cam locking mechanism (6) is fixedly connected to the outer side wall of the left longitudinal beam (3) of the vehicle body through bolts. The cam locking mechanism (6) includes a fixing bracket (206). A locking tongue (207) is rotatably connected to the inside of the fixing bracket (206) through a hexagon head. A second spring (209) is directly fixedly connected between the front lower surface of the locking tongue (207) and the inner upper surface of the fixing bracket (206).

[0022] First, rotate the hexagon head of the locking mechanism counterclockwise. The locking tongue (207) rotates downward under the action of torque until it exits the locked state. At this time, the cam (202) rotates counterclockwise under the pulling force of the first spring (210) until the rocker arm (205) is in a free state;

[0023] Use the battery tray to hold the battery, move it horizontally forward by 20 mm (at this time, the battery fixed shaft (battery 4) will give a forward and downward thrust to the battery fixed shaft locking block (104). Under the action of this force, the battery fixed shaft locking block (104) will be pushed back into the rotation groove and no longer have the locking function), then move it upward by 45 mm, and then move it backward to remove the battery pack (4);

[0024] After that, use the battery tray to hold the battery pack. After aligning its fixed shaft in the Z direction and Y direction with the battery fixed shaft guide groove (105), move it horizontally forward until the front end of the guide groove. Then the battery pack (4) moves downward (the battery fixed shaft locking block (104) moves downward and retracts into the rotation groove under the downward pressure of the battery fixed shaft (battery 4) (at this time, the cable is in a free state)). Finally, move the battery pack (4) backward into the fixed groove;

[0025] Rotate the hexagonal screw head on the cam clockwise. The cam gradually pushes the rocker arm (205) to rotate clockwise, causing the cable to be gradually tightened, pulling the battery fixing shaft locking block (104) to rotate counterclockwise, and gradually locking the battery fixing shaft (battery report 4). When the cam locking groove (203) rotates to the position of the locking tongue (207), the locking tongue (207) is pushed into the cam locking groove (203) under the action of the second spring (209) (upward force) for locking, that is, the battery assembly is completed.

[0026] The working principle of this device is:

[0027] Battery pack disassembly:

[0028] First, rotate the hexagonal screw head of the locking mechanism counterclockwise. The locking tongue (207) rotates downward under the action of torque until it exits the locked state. At this time, the cam (202) rotates counterclockwise under the pulling force of the first spring (210) until the rocker arm (205) is in a free state;

[0029] Secondly, use the battery tray to hold the battery, move it horizontally forward by 20 mm (at this time, the battery fixing shaft (battery 4) will give a forward and downward thrust to the battery fixing shaft locking block (104). Under the action of this force, the battery fixing shaft locking block (104) will be pushed back into the rotating groove and no longer have the locking function), then move it up by 45 mm, and then move it backward to disassemble the battery pack (4);

[0030] Battery pack assembly:

[0031] First, use the battery tray to hold the battery pack. After aligning its fixing shaft in the Z and Y directions with the battery fixing shaft guide groove (105), move it horizontally forward until the front end of the guide groove. Then, the battery pack (4) moves down (the battery fixing shaft locking block (104) moves down and retracts into the rotating groove under the downward pressure of the battery fixing shaft (battery 4) (at this time, the cable is in a free state)), and finally move the battery pack (4) backward into the fixing groove;

[0032] Secondly, rotate the hexagonal screw head on the cam clockwise. The cam gradually pushes the rocker arm (205) to rotate clockwise, causing the cable to be gradually tightened, pulling the battery fixing shaft locking block (104) to rotate counterclockwise, and gradually locking the battery fixing shaft (battery report 4). When the cam locking groove (203) rotates to the position of the locking tongue (207), the locking tongue (207) is pushed into the cam locking groove (203) under the action of the second spring (209) (upward force) for locking, that is, the battery assembly is completed.

[0033] All electrical components mentioned in this article are electrical components that exist in reality.

[0034] Certainly, the above description is not a limitation to the present utility model, nor is the present utility model limited to the above examples. Changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model also fall within the protection scope of the present utility model.

Claims

1. A mechanical power battery quick-change mechanism, comprising a right longitudinal beam (1) of a vehicle body, characterized in that: The left side surface of the right longitudinal beam (1) of the vehicle body is fixedly connected to two vehicle body cross beams (2), the left side surface of the vehicle body cross beam (2) is fixedly connected to the left longitudinal beam (3) of the vehicle body, a battery pack (4) is installed between the right longitudinal beam (1) of the vehicle body and the left longitudinal beam (3) of the vehicle body, the outer side wall of the right longitudinal beam (1) of the vehicle body and the outer side wall of the left longitudinal beam (3) of the vehicle body are symmetrically fixedly connected to two pulley mechanisms (5) by welding, the outer side wall of the left longitudinal beam (3) of the vehicle body is threadedly connected to a cam mechanism (10) and a cam locking mechanism (6), the right longitudinal beam of the vehicle body The beam (1) and the outer side wall of the left longitudinal beam (3) of the vehicle body are symmetrically fixedly connected with two battery pack fixing mechanisms (7) by welding. The battery pack fixing mechanism (7) is used to fix the battery pack (4). Above the cam mechanism (10), a rocker mechanism (8) is fixedly connected to the outer side wall of the left longitudinal beam (3) of the vehicle body. Below the cam mechanism (10), a cam locking mechanism (6) is fixedly connected to the outer side wall of the left longitudinal beam (3) of the vehicle body. The rocker mechanism (8), the pulley mechanism (5) and the battery pack fixing mechanism (7) are commonly connected to a cable assembly (9).

2. A mechanical power battery quick-change mechanism according to claim 1, characterized in that: The battery pack fixing mechanism (7) comprises a fixing seat (101), a rotation groove (103) is provided inside the fixing seat (101), a battery fixing shaft locking block (104) is rotatably connected inside the rotation groove (103) via a rotating shaft, and a battery fixing shaft guide groove (105) is provided on the rear side of the fixing seat (101).

3. The mechanical power battery quick-change mechanism according to claim 1, characterized in that: The cam mechanism (10) comprises a fixed support (201), the inner cavity of the fixed support (201) is connected to a cam (202) via a cam hexagonal screw shaft, the outer wall of the cam (202) is provided with a cam locking groove (203), and the cam (202) and the fixed support (201) are directly fixedly connected by a spring 1 (210); above the cam mechanism (10), a rocker mechanism (8) is welded to the outer wall of the left longitudinal beam (3) of the vehicle body, and the rocker mechanism (8) comprises a rocker fixing frame (204), and the rocker fixing frame (204) is fixed to the outer wall of the left longitudinal beam (3) of the vehicle body by bolts. The inner cavity of the rocker arm fixing frame (204) is rotatably connected to the rocker arm (205) through a hexagonal screw head, and the rear arm of the rocker arm (205) is fixedly connected to the cable assembly (9); below the cam (202), the outer wall of the left longitudinal beam (3) of the vehicle body is fixedly connected to a cam locking mechanism (6) through bolts, and the cam locking mechanism (6) includes a fixing bracket (206), and the fixing bracket (206) is rotatably connected to a locking tongue (207) through a hexagonal screw head, and the front lower surface of the locking tongue (207) and the inner upper surface of the fixing bracket (206) are directly fixedly connected to a spring 2 (209).

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