Fire-fighting mechanism in battery swap station

Abstract

The utility model relates to the technical field of electric vehicle battery replacement. A fire fighting mechanism in a battery swap station comprises a water tank, and a supporting frame is installed above the water tank. The lifting mechanism is used for driving the battery pack to descend to be immersed in the water tank or ascend to be moved out of the water tank and comprises a lifting frame, a battery pack bracket is installed on the lifting frame, and a positioning structure used for positioning the battery pack is installed on the battery pack bracket; the supporting frame is provided with a longitudinal guide wheel used for guiding lifting of the lifting frame. A battery charging base used for charging the battery pack is detachably installed on the supporting frame, and the battery charging base and the lifting frame are arranged up and down. The structure of the fire-fighting mechanism is optimized, and the lifting platform used for driving the battery pack to be immersed in the water tank is arranged below the battery charging seat, so that fire extinguishment in the battery swap station is realized. As the transmission distance of the battery pack is shortened, the time is greatly shortened and the fire-fighting efficiency is improved compared with the fire-fighting time required for moving the battery out of the battery swap station.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle battery swapping technology, specifically to fire protection agencies. Background Technology

[0002] Fire safety is paramount at battery swapping stations because batteries pose a fire risk during storage and replacement. To ensure safety and stability within the station, existing electric vehicle battery swapping stations typically handle fires by removing faulty battery packs from the station and using external fire suppression systems such as water tanks and sandboxes.

[0003] Because the battery packs of electric vehicles such as mining trucks are quite heavy, the time required for transporting the battery packs is far from sufficient to remove abnormal battery packs, which could lead to serious safety accidents. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides an internal fire protection mechanism for a battery swapping station, which has solved at least one of the above-mentioned technical problems.

[0005] The technical solution of this utility model is: an internal fire-fighting mechanism for a battery swapping station, comprising a water tank, characterized in that a support frame is installed above the water tank;

[0006] It also includes a lifting mechanism for lowering the battery pack into the water tank or raising it out of the water tank. The lifting mechanism includes a lifting frame, on which a battery pack bracket is installed, and on which a positioning structure for positioning the battery pack is installed.

[0007] The support frame is equipped with longitudinal guide wheels for guiding the lifting frame to move up and down;

[0008] A battery charging stand for charging the battery pack is detachably installed on the support frame, and the battery charging stand is arranged vertically above the lifting frame.

[0009] This invention optimizes the structure of the fire-fighting mechanism by incorporating a lifting platform below the battery charging base to immerse the battery pack in the water tank, thus enabling fire suppression inside the battery swapping station. By shortening the battery pack's transport distance, the fire-fighting time required to remove the batteries from the station is significantly reduced, thereby improving fire-fighting efficiency.

[0010] More preferably, two smoke sensors are detachably connected to the support frame; the two smoke sensors are located above the battery charging base and above the highest point of the lifting frame, respectively.

[0011] More preferably, the water tank is disposed in a ground depression, and the support frame is installed on the outer edge of the ground depression.

[0012] More preferably, the lifting frame includes vertically arranged support legs, the bottom of which is lower than the bottom of the battery pack bracket.

[0013] This allows for mechanical restraint of the battery pack's descent at the bottom of the support feet.

[0014] More preferably, the lifting mechanism includes a chain-type lifting module, which includes a left drive chain and a right drive chain arranged side by side, and the left and right ends of the lifting frame are respectively connected to the left drive chain and the right drive chain.

[0015] The lifting mechanism also includes a counterweight module, which includes a counterweight frame, a counterweight block, a transmission chain, a front guide wheel, and a rear guide wheel.

[0016] The front guide wheel and the rear guide wheel are mounted on the top of the support frame via bearings;

[0017] One end of the transmission chain is detachably connected to the lifting frame. The transmission chain passes through the front guide wheel and the rear guide wheel and is detachably connected to the counterweight frame. A counterweight block is installed on the counterweight frame.

[0018] The lifting frame and the counterweight frame are arranged in front of and behind each other; the counterweight frame is equipped with a set of guide wheels that are longitudinally slidably connected to the support frame.

[0019] This invention improves the lifting stability of the chain-type lifting module by adding a counterweight module.

[0020] More preferably, guide wheel sets are installed at both the left and right ends of the counterweight frame;

[0021] The guide wheel assembly includes a front limit roller, a rear limit roller, and an inner limit roller;

[0022] The central axis of the inner limiting roller is in the front-back direction;

[0023] The central axis of the front limiting roller and the rear limiting roller is oriented to the left and right;

[0024] The support frame includes a guide bar sandwiched between the front limiting roller and the rear limiting roller, and the inner limiting roller is sandwiched between the counterweight frame and the guide bar.

[0025] More preferably, the transmission chain is provided in two parts, and the two transmission chains are located between the left drive chain and the right drive chain.

[0026] More preferably, the left end of the support frame is equipped with a left driving sprocket and a left driven sprocket that are arranged vertically and mesh with the left drive chain;

[0027] The right end of the support frame is equipped with a right-side drive sprocket and a right-side driven sprocket that are arranged vertically and mesh with the right drive chain.

[0028] The top of the support frame is equipped with a drive mechanism for rotating the left and right drive sprockets.

[0029] More preferably, the support frame includes a left support frame and a right support frame arranged on the left and right sides, and the left support frame and the right support frame are connected by a connecting beam arranged in front and behind.

[0030] The battery charging dock is detachably connected to the top of the connecting crossbeam;

[0031] The lifting frame includes a support frame with an opening at the front end, which serves as an insertion end for laterally inserting a battery pack.

[0032] The top of the support frame is detachably connected to a limiting sleeve. The limiting sleeve includes a bottom support plate, a front limiting claw and a rear limiting claw for limiting the front and rear sides of the connecting crossbeam. The front and rear ends of the bottom support plate are fixedly connected to the front limiting claw and the rear limiting claw, respectively. The distance between the tops of the front limiting claw and the rear limiting claw decreases from top to bottom.

[0033] More preferably, the positioning structure includes two primary positioning plates arranged on the left and right sides, and an edge support strip is fixed to the inner side of the primary positioning plate;

[0034] The positioning structure also includes four vertically arranged secondary guide rods, which are located between the two primary positioning plates.

[0035] The positioning structure also includes two positioning pins arranged on the left and right sides. One positioning pin is located between the four secondary guide rods and the primary positioning plate located on the left side, and the other positioning pin is located between the four secondary guide rods and the primary positioning plate located on the right side.

[0036] More preferably, the battery pack bracket includes a central support frame and edge support frames;

[0037] The primary positioning plate is installed on the edge support frame;

[0038] The tops of the left and right ends of the central support frame are higher than the top of the central region of the central support frame;

[0039] The positioning pins are installed at both ends of the middle support frame;

[0040] The secondary guide rod is installed in the central area of ​​the central support frame.

[0041] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model ensures that abnormal battery packs can be quickly placed in a safe position. The core point is that it is quick and fast, and the battery pack can be directly and quickly lowered into the fire water tank without being affected by weight. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of this utility model;

[0043] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0044] Figure 3 This is a structural schematic diagram of the present invention from another perspective;

[0045] Figure 4 This is a schematic diagram of the lifting mechanism of this utility model;

[0046] Figure 5 This is a schematic diagram of the support frame and water tank of this utility model in their combined state;

[0047] Figure 6 This is a schematic diagram of the lifting frame of this utility model;

[0048] Figure 7 This is a partial structural diagram of the counterweight frame of this utility model.

[0049] Attached reference numerals: 1 for water tank, 2 for support frame, 21 for longitudinal guide wheel, 22 for battery charging base, 3 for battery pack bracket, 31 for primary positioning plate, 32 for secondary guide rod, 33 for positioning pin, 34 for support bar, 41 for lifting frame, 411 for front limit claw, 412 for rear limit claw, 42 for right drive chain, 43 for transmission chain, 44 for counterweight frame, 45 for front guide wheel, 46 for rear guide wheel, 47 for left drive chain, 48 for front limit roller, 49 for rear limit roller, 50 for inner limit roller. Detailed Implementation

[0050] See Figures 1 to 7Specific embodiment 1: A fire-fighting mechanism inside a battery swapping station includes a water tank 1, with a support frame 2 mounted above the water tank 1; it also includes a lifting mechanism for lowering or raising a battery pack to immerse it in or remove it from the water tank 1. The lifting mechanism includes a lifting frame 41, with a battery pack bracket 3 mounted on the lifting frame 41, and a positioning structure for positioning the battery pack on the battery pack bracket 3; longitudinal guide wheels 21 for guiding the lifting frame 41 are mounted on the support frame 2; a battery charging base 22 for charging the battery pack is detachably mounted on the support frame 2, and the battery charging base 22 is positioned vertically above the lifting frame 41. This utility model optimizes the structure of the fire-fighting mechanism by setting a lifting platform below the battery charging base 22 for immersing the battery pack in the water tank 1, thus achieving fire extinguishing inside the battery swapping station. Because the transfer distance of the battery pack is shortened, the fire-fighting time required to remove the battery from the battery swapping station is greatly reduced, improving fire-fighting efficiency. This utility model allows for the rapid and emergency placement of battery packs from the battery charging base inside the battery swapping station into the water tank for fire extinguishing.

[0051] The longitudinal guide wheel 21 includes a front guide wheel for limiting the front side of the lifting frame and a rear guide wheel for limiting the rear side of the lifting frame. The front guide wheel and the rear guide wheel located on the left side of the support frame abut against the left side of the lifting frame. The front guide wheel and the rear guide wheel located on the right side of the support frame abut against the right side of the lifting frame.

[0052] Two smoke sensors are detachably connected to the support frame 2; the two smoke sensors are located above the battery charging base 22 and above the highest position of the lifting frame 41, respectively.

[0053] Water tank 1 is set in a pit in the ground, and support frame 2 is installed on the outer edge of the pit.

[0054] The lifting frame 41 includes vertically arranged support legs, the bottom of which is lower than the bottom of the battery pack bracket 3. This facilitates mechanical restraint of the battery pack's descent by the bottom of the support legs.

[0055] The lifting mechanism includes a chain-type lifting module, which comprises a left drive chain 47 and a right drive chain 42 arranged side by side. The left and right ends of the lifting frame 41 are connected to the left and right drive chains, respectively. The lifting mechanism also includes a counterweight module, which comprises a counterweight frame 44, a counterweight block, a transmission chain 43, a front guide wheel 45, and a rear guide wheel 46. The front guide wheel 45 and the rear guide wheel 46 are mounted on the top of the support frame 2 via bearings. One end of the transmission chain 43 is detachably connected to the lifting frame 41, and the transmission chain 43 passes through the front guide wheel 45 and the rear guide wheel 46 and is detachably connected to the counterweight frame 44. A counterweight block is installed on the counterweight frame 44. The lifting frame 41 and the counterweight frame 44 are arranged front and rear. A guide wheel assembly that is longitudinally slidably connected to the support frame 2 is installed on the counterweight frame 44. This utility model improves the lifting stability of the chain-type lifting module by adding a counterweight module.

[0056] The counterweight frame 44 is equipped with guide wheel sets arranged vertically at both ends; the guide wheel sets include a front limit roller 48, a rear limit roller 49 and an inner limit roller 50; the central axis of the inner limit roller is in the front-back direction; the central axis of the front limit roller 48 and the rear limit roller 49 is in the left-right direction; the support frame 2 includes a guide bar sandwiched between the front limit roller 48 and the rear limit roller 49, and the inner limit roller 50 is sandwiched between the counterweight frame 44 and the guide bar.

[0057] There are two drive chains 43, which are located between the left drive chain 47 and the right drive chain 42.

[0058] The left end of the support frame 2 is equipped with a left drive sprocket and a left driven sprocket that are arranged vertically and mesh with the left drive chain; the right end of the support frame 2 is equipped with a right drive sprocket and a right driven sprocket that are arranged vertically and mesh with the right drive chain; the top of the support frame 2 is equipped with a drive mechanism for rotating the left drive sprocket and the right drive sprocket.

[0059] The support frame 2 includes a left support frame and a right support frame arranged on the left and right sides, which are connected by a connecting beam arranged at the front and rear. A battery charging base 22 is detachably connected to the top of the connecting beam. The lifting frame 41 includes a support frame with an opening at the front end, which serves as the insertion end for horizontally inserting the battery pack. A limiting sleeve is detachably connected to the top of the support frame. The limiting sleeve includes a bottom support plate, a front limiting claw 411 and a rear limiting claw 412 arranged on the front and rear sides of the connecting beam for limiting. The front and rear ends of the bottom support plate are fixedly connected to the front limiting claw 411 and the rear limiting claw 412, respectively. The distance between the tops of the front limiting claw 411 and the rear limiting claw 412 decreases from top to bottom.

[0060] The positioning structure includes two primary positioning plates 31 arranged horizontally, with edge support strips 34 fixed to the inner side of each primary positioning plate 31. The positioning structure also includes four vertically arranged secondary guide rods 32 located between the two primary positioning plates. Furthermore, the positioning structure includes two positioning pins 33 arranged horizontally, one pin located between the four secondary guide rods 32 and the primary positioning plate 31 on the left, and the other pin located between the four secondary guide rods 32 and the primary positioning plate 31 on the right. The positioning structure is used for downward positioning and insertion of the battery pack after it extends laterally into the support frame from the insertion end. The primary positioning plates abut against the two sides of the battery pack. The bottom of the battery pack has positioning holes for inserting positioning pins and guide holes for inserting secondary guide rods.

[0061] The battery pack bracket 3 includes a central support frame 2 and an edge support frame 2; a primary positioning plate 31 is installed on the edge support frame 2; the tops of the left and right ends of the central support frame 2 are higher than the top of the central area of ​​the central support frame 2; positioning pins 33 are installed on the left and right ends of the central support frame 2; and a secondary guide rod 32 is installed in the central area of ​​the central support frame 2.

[0062] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A battery replacement station internal fire extinguishing mechanism comprising a water tank, characterized in that, The upper part of the water tank is provided with a support frame; The lifting mechanism is used to drive the battery pack to descend and immerse in the water tank or to ascend and move out of the water tank, and the lifting mechanism comprises a lifting frame, a battery pack bracket mounted on the lifting frame, and a positioning structure mounted on the battery pack bracket and used to position the battery pack; The support frame is provided with longitudinal guide wheels used to guide the lifting of the lifting frame; The support frame is detachably provided with a battery charging seat used to charge the battery pack, and the battery charging seat is arranged above and below the lifting frame.

2. The internal fire extinguishing mechanism of the battery swap station according to claim 1, characterized in that: The support frame is detachably connected with two smoke sensors, and the two smoke sensors are respectively arranged above the battery charging seat and above the highest position of the lifting frame. 3.The internal fire extinguishing mechanism of the battery swap station according to claim 1, wherein: The water tank is arranged in a ground pit, and the support frame is arranged at the outer edge of the ground pit. 4.The internal fire extinguishing mechanism of the battery swap station according to claim 1, characterized in that: The lifting frame comprises a vertically arranged support leg, and the bottom of the support leg is lower than the bottom of the battery pack bracket. 5.The internal fire extinguishing mechanism of the battery swap station according to claim 1, wherein: The lifting mechanism comprises a chain type lifting module, and the chain type lifting module comprises left and right drive chains arranged side by side, and the left and right ends of the lifting frame are connected with the left and right drive chains respectively. The lifting mechanism further comprises a counterweight module, and the counterweight module comprises a counterweight frame, a counterweight block, a transmission chain, a front guide wheel and a rear guide wheel. The front guide wheel and the rear guide wheel are mounted on the top of the support frame through bearings. One end of the transmission chain is detachably connected with the lifting frame, the transmission chain passes through the front guide wheel and the rear guide wheel and is detachably connected with the counterweight frame, and the counterweight block is mounted on the counterweight frame. The lifting frame and the counterweight frame are arranged in front of and behind each other, and the counterweight frame is provided with a guide wheel set which is connected with the support frame in a longitudinal sliding manner. 6.The internal fire extinguishing mechanism of the battery swap station according to claim 5, characterized in that: The left and right ends of the counterweight frame are both provided with a guide wheel set arranged in an up-down manner. The guide wheel set comprises a front limiting roller, a rear limiting roller and an inner limiting roller. The central axis direction of the inner limiting roller is front-rear direction. The central axis directions of the front limiting roller and the rear limiting roller are left-right. The support frame comprises a guide strip clamped between the front limiting roller and the rear limiting roller, and the inner limiting roller is clamped between the counterweight frame and the guide strip. 7.The internal fire extinguishing mechanism of the battery swap station according to claim 5, characterized in that: The left end of the support frame is provided with a left driving sprocket and a left driven sprocket arranged in an up-down manner and engaged with the left drive chain. The right end of the support frame is provided with a right driving sprocket and a right driven sprocket arranged in an up-down manner and engaged with the right drive chain. The top of the support frame is provided with a driving mechanism used to drive the left driving sprocket and the right driving sprocket to rotate. 8.The internal fire extinguishing mechanism of the battery swap station according to claim 1, wherein: The support frame comprises left and right support frames connected through a front and rear connecting cross beam. The battery charging seat is detachably connected above the connecting cross beam. The lifting frame comprises a support frame, and the front end of the support frame is open, and the open front end of the support frame is an insertion end used to insert the battery pack horizontally. The top of the support frame is detachably connected with a limiting sleeve, the limiting sleeve comprises a bottom support plate, front and rear limiting claws for limiting arrangement on the front and rear sides of the connecting crossbeam, the front and rear ends of the bottom support plate are fixedly connected with the front and rear limiting claws respectively, and the spacing between the tops of the front and rear limiting claws decreases from top to bottom. 9.The internal fire extinguishing mechanism of the battery swap station according to claim 1, wherein: The positioning structure comprises two first positioning plates arranged left and right, and edge support strips are fixed to the inner sides of the first positioning plates; The positioning structure further comprises four second guide rods arranged vertically, and the four second guide rods are located between the two first positioning plates; The positioning structure further comprises two positioning pins arranged left and right, one of the positioning pins is located between the four second guide rods and the first positioning plate on the left side, and the other positioning pin is located between the four second guide rods and the first positioning plate on the right side. 10.The internal fire extinguishing mechanism of the battery swap station according to claim 9, characterized in that: The battery pack bracket comprises a middle support frame and an edge support frame; The edge support frame is provided with the first positioning plate; The top of the left and right ends of the middle support frame is higher than the top of the central region of the middle support frame; The left and right ends of the middle support frame are provided with the positioning pins; The central region of the middle support frame is provided with the second guide rods.

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