Traction type fireproof power battery maintenance vehicle

Abstract

The invention discloses a traction type fireproof power battery maintenance vehicle, and belongs to the technical field of new energy vehicle maintenance, the traction type fireproof power battery maintenance vehicle is provided with a frame main body and a water tank arranged in the frame main body; the maintenance platform is used for bearing a to-be-maintained battery pack and is arranged above the water tank; a driver is mounted at the bottom of the frame body; the end part of the driver is connected with a plurality of flexible traction pieces; the traction piece forms a traction path along the side wall of the frame main body, and is connected with a traction connection point at the angular position of the maintenance platform at the tail end of the traction path; the driver has a first working state in which the maintenance platform and the upper surface of the frame main body are kept coplanar; according to the invention, the structure is simple, the use is convenient, and the problem of spontaneous combustion of the battery caused by overheat of the battery in the detection, maintenance and charge-discharge treatment work of the battery pack of the new energy vehicle can be safely and efficiently solved.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle maintenance, and particularly to a towable fireproof power battery maintenance vehicle. Background Art

[0002] With major automobile enterprises successively launching new energy vehicles, the detection, maintenance, and charging and discharging treatment of new energy vehicle battery packs have also followed. During this process, automobile maintenance personnel have a certain probability of causing battery spontaneous combustion due to battery overheating. For the situation of battery fire or explosion, there are many drawbacks in the existing treatment means. For example, although flushing with water can dilute the electrolyte and lower the temperature, the flushing water is inconvenient to discharge in the maintenance workshop and pollutes the environment; some automobile manufacturers recommend that 4S stores throw the burning battery into a pre-built pool, but building a pool requires a large area, and the risk is high during the process of transporting the battery in thermal runaway to the pool, and even causes personal injury.

[0003] In addition, under the strong promotion of national environmental protection policies, the detection and maintenance workload of new energy vehicle battery packs is also increasing day by day. This further highlights that in the process of carrying out new energy vehicle related businesses, battery related problems face many challenges and urgently need more perfect, safer and more efficient solutions;

[0004] Therefore, based on the above problems, how to provide a towable fireproof power battery maintenance vehicle has become an important technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the existing technology and provide a towable fireproof power battery maintenance vehicle that can safely and efficiently solve the problem of battery spontaneous combustion caused by battery overheating in the detection, maintenance, and charging and discharging treatment of new energy vehicle battery packs.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A towable fireproof power battery maintenance vehicle disclosed by the present invention includes:

[0008] A frame main body, a water tank placed inside the frame main body; and

[0009] An overhaul platform, which is used to carry the battery pack to be overhauled and is placed above the water tank;

[0010] Wherein, a driver is installed at the bottom of the frame main body;

[0011] A plurality of flexible towing members are connected to the end of the driver;

[0012] The towing member forms a towing path along the side wall of the frame main body and is connected to the towing connection point at the corner position of the overhaul platform at the end of the towing path;

[0013] The driver has a first working state in which the maintenance platform is coplanar with the upper surface of the frame body; and

[0014] a second working state in which the maintenance platform freely falls into the water tank by extending the traction member.

[0015] Furthermore, the traction path includes a vertical path parallel to the vertical plane and a water path parallel to the horizontal plane, and the frame body is provided with guide wheels for guiding the turning of the traction member at the inflection point positions of the vertical path and the horizontal path.

[0016] Furthermore, a first virtual plane is formed above the water tank by the frame body, and a second virtual plane and a third virtual plane are sequentially formed below. On the first virtual plane, the traction member forms a spanning section a that spans the water tank along the horizontal path. On the second virtual plane and the third virtual plane, the traction member forms an approaching section b that approaches the driver along the horizontal path. The approaching section b is connected to the driver through a detour section c, and the spanning section a suspends the maintenance platform through a traction section d extending along the inner wall of the water tank.

[0017] Furthermore, the traction connection points arranged at the corner positions of the quadrilateral maintenance platform are all connected to the traction members that individually control the lifting of the maintenance platform.

[0018] Furthermore, a limiting mechanism is arranged inside the frame body, the limiting mechanism is fixedly connected to the water tank, and a driver connection point is fixedly connected to the low wall of the frame body and is fixedly connected to the flange of the end of the driver through the driver connection point.

[0019] Furthermore, insulating pads are arranged on the maintenance platform.

[0020] Furthermore, a control unit is installed at the bottom end of the side of the frame body for controlling the start of the driver.

[0021] Furthermore, casters are installed at the corner positions of the bottom of the frame body.

[0022] Furthermore, the traction member is a steel wire rope.

[0023] Furthermore, the driver is an oil cylinder or a cylinder.

[0024] In the above technical solution, for a traction-type fireproof power battery maintenance vehicle provided by the present invention, the beneficial effects are:

[0025] The traction - type fire - proof power battery maintenance vehicle designed by the present invention has a water tank placed inside the frame body. The maintenance platform for carrying the battery pack to be repaired is placed above the water tank. The driver installed at the bottom of the frame body is connected with a flexible traction member. The traction member forms a traction path along the side wall of the frame body. The traction member is connected to the traction connection point at the corner position of the maintenance platform at the end of the traction path. When the driver is in the first working state, the maintenance platform is coplanar with the upper surface of the frame body. When in the second working state, the driver drives the traction member to extend so that the maintenance platform freely falls into the water tank. When maintenance personnel carry out detection, repair, and charge - discharge operations on the power battery pack of a new - energy vehicle, if the battery pack catches fire spontaneously, the traction - type fire - proof power battery maintenance vehicle can immediately immerse the power battery together with the maintenance platform in saturated salt water, thereby isolating air, reducing temperature, and discharging the battery at the same time;

[0026] The maintenance vehicle hoists the maintenance platform through four traction members, achieving the effect of smooth operation during the movement of the maintenance platform, and the synchronism can be highly guaranteed. At the same time, adopting the design method of multi - point suspension can endow the maintenance platform with the function of preventing falling, effectively ensuring its safety during use. In addition, adopting the connection structure of the driver and the traction member does not require considering the anti - rust treatment of the in - groove connection mechanism, with a clever design, high product cost - performance, simple structure, and convenient use. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is the overall assembly drawing of the traction - type fire - proof power battery maintenance vehicle disclosed by the present invention - battery pack upper - position view;

[0029] Figure 2 It is the overall assembly drawing of the traction - type fire - proof power battery maintenance vehicle disclosed by the present invention - battery pack lower - position view;

[0030] Figure 3 It is the explosion view of the traction - type fire - proof power battery maintenance vehicle disclosed by the present invention;

[0031] Figure 4 It is the structural schematic diagram of the maintenance platform of the traction - type fire - proof power battery maintenance vehicle disclosed by the present invention;

[0032] Figure 5 It is the structural schematic diagram of the frame body of the traction - type fire - proof power battery maintenance vehicle disclosed by the present invention;

[0033] Figure 6 It is a schematic structural diagram of the guide wheel, traction member, and driver of the towed fireproof power battery maintenance vehicle disclosed in the present invention on the traction path.

[0034] Explanation of reference numerals:

[0035] 1, maintenance platform; 2, frame main body; 3, water tank; 4, driver; 5, steel wire rope; 6, caster; 7, control unit; 8, insulating pad;

[0036] 101, 102, 103, 104, traction connection points;

[0037] 2D11, 2D12, 2D13, 2D14, 2D15, 2D16, 2D21, 2D22, 2D23, 2D24, 2D25, 2D26, 2D31, 2D32, 2D3, 2D34, 2D41, 2D42, 2D43, 2D44, guide wheels;

[0038] 2S01, 2S02, 2S03, 2S04, 2S05, 2S036, 2S037, 2S08, limit mechanism

[0039] 2Y01, 2Y02, driver connection points

[0040] 2K01, 2K02, 2K03, 2K04, 2K05, 2K06, guide blocks

[0041] 401, 402, 403, 404, traction connection points;

[0042] 501, 502, 503, 504, steel wire ropes. Detailed implementation manners

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Figure 1 It is the overall assembly drawing of the towed fireproof power battery maintenance vehicle - the upper view of the battery pack;

[0045] Figure 2 It is the overall assembly drawing of the towed fireproof power battery maintenance vehicle - the lower view of the battery pack;

[0046] Figure 3 It is the explosion diagram of the towed fireproof power battery maintenance vehicle;

[0047] An invention of a towed fireproof power battery maintenance vehicle includes:

[0048] Maintenance platform 1, frame main body 2, water tank 3;

[0049] The water tank 3 is placed inside the frame body 2, and the maintenance platform 1 is used to carry the battery pack to be maintained and is placed above the water tank 3. Among them, a driver 4 is installed at the bottom of the frame body 2, and a plurality of flexible traction members 5 are connected to the end of the driver 4. The traction member 5 forms a traction path along the side wall of the frame body 2 and is connected to the traction connection point at the corner position of the maintenance platform 1 at the end of the traction path;

[0050] The driver 4 has a first working state and a second working state;

[0051] The first working state is used to keep the maintenance platform 1 coplanar with the upper surface of the frame body 2;

[0052] In the second working state, the maintenance platform 1 is made to free-fall and sink into the water tank 3 by the extension of the traction member 5;

[0053] When the maintenance personnel are carrying out inspections, repairs, and charging and discharging operations on the power battery pack of a new energy vehicle, if the battery pack catches fire, this traction-type fire-proof power battery repair vehicle can immediately immerse the power battery together with the maintenance platform 1 in saturated salt water, so as to achieve the effect of isolating air, reducing temperature, and discharging the battery at the same time.

[0054] Figure 6 It is a schematic structural diagram of the guide wheel, traction member, and driver of the traction-type fire-proof power battery repair vehicle on the traction path:

[0055] Preferably, the traction path includes a vertical path parallel to the vertical plane and a water path parallel to the horizontal plane. The frame body 2 is provided with guide wheels for guiding the traction member 5 to turn at the inflection point positions of the vertical path and the horizontal path, and the traction member 5 is supported by the guide wheels and does not contact the frame body 2 and the water tank 3.

[0056] In a specific embodiment, a first guide wheel group, a second guide wheel group, a third guide wheel group, and a fourth guide wheel group are respectively arranged on the frame body 2 corresponding to the number of the traction members 5;

[0057] The first guide wheel group includes guide wheels 2D11, 2D12, 2D13, 2D14, 2D15, 2D16;

[0058] The second guide wheel group includes wire guide wheels 2D21, 2D22, 2D23, 2D24, 2D25, 2D26;

[0059] The third guide wheel group includes guide wheels 2D31, 2D32, 2D3, 2D34;

[0060] The fourth guide wheel group includes guide wheels 2D41, 2D42, 2D43, 2D44;

[0061] Among them, the frame body 2 is also provided with limiting mechanisms 2S01, 2S02, 2S03, 2S04, 2S05, 2S036, 2S037, 2S08 for positioning the water tank 3; and driver connection points 2Y01, 2Y02 for fixing the driver 4. Guide blocks 2K01, 2K02, 2K03, 2K04, 2K05, 2K06 are arranged on both sides of the top end of the frame body 2. The maintenance platform 1 is positioned and guided through the guide blocks to avoid jamming during the movement of the maintenance platform 1.

[0062] Preferably, the frame body 2 forms a first virtual plane above the water tank 3, and successively forms a second virtual plane and a third virtual plane below. On the first virtual plane, the traction member 5 forms a crossing section a that crosses the water tank 3 along a horizontal path. By means of the crossing section a, the water tank 3 is avoided, preventing the traction member 5 from interfering with the water tank 3 and causing jamming. On the second virtual plane and the third virtual plane, the traction member 5 forms an approaching section b that approaches the driver 4 along a horizontal path. The traction member 5 gradually approaches the driver 4 through the approaching section b to ensure smooth force application on the traction member 5. The end of the approaching section b is connected to the driver 4 through a detour section c. The crossing section a suspends and installs the maintenance platform 1 through a traction section d extending along the inner wall of the water tank 3.

[0063] In a specific embodiment, when the number of the approaching sections b is one, the approaching section b is arranged at the head end of the driver 4 and extends perpendicular to the direction of the driver 4. After the traction member 5 extends along a vertical path, it directly connects to the head end of the driver 4 through the approaching section b and the detour section c in sequence.

[0064] When the number of the approaching sections b is multiple, taking two as an example in this embodiment, the approaching sections b both extend vertically towards the driver 4 and are distributed at the head end and the tail end of the driver 4. A transition section extending along the length direction of the driver 4 is connected between the two approaching sections b. The approaching section b at the head end of the driver 4 is connected to the head end of the driver 4 through a detour section c.

[0065] Figure 4 It is a schematic structural diagram of the maintenance platform of a traction type fire-proof power battery maintenance vehicle. Among them, a in the figure is an isometric view of the maintenance platform, and b is a top view of the maintenance platform:

[0066] Preferably, traction connectors are arranged at the corner positions of the quadrilateral maintenance platform 1, and each is connected to a traction member 5 that independently controls the lifting of the maintenance platform 1. That is to say, the traction connectors 101, 102, 103, and 104 at the corner positions of the maintenance platform 1 are all connected to separate traction members 5 and are independently controlled by their respective traction members 5. Both ends of the four traction members 5 are respectively installed on the same drive 4 and the maintenance platform 1. As a result, the four corners of the maintenance platform 1 can achieve a stable operation effect during its movement, and the synchronization can be highly guaranteed. At the same time, adopting the design method of multi-point suspension can endow the maintenance platform 1 with the function of preventing falling, effectively ensuring its safety during use. In addition, adopting the connection structure of the drive 4 and the traction member 5 does not require considering the anti-rust treatment of the in-tank connection mechanism. The design is ingenious and the product has a high cost performance;

[0067] Specifically, there are four traction members 5, namely traction members 501, 502, 503, and 504, where:

[0068] One end of the traction member 501 is fixed to the traction connection point 101, and the other end is sequentially fixed to the traction connection point 401 through guide wheels 2D11, 2D12, 2D13, 2D14, 2D15, and 2D16;

[0069] One end of the traction member 502 is fixed to the traction connection point 102, and the other end is sequentially fixed to the traction connection point 402 through guide wheels 2D21, 2D22, 2D23, 2D24, 2D25, and 2D26;

[0070] One end of the traction member 503 is fixed to the traction connection point 103, and the other end is sequentially fixed to the traction connection point 403 through guide wheels 2D31, 2D32, 2D3, and 2D34;

[0071] One end of the traction member 504 is fixed to the traction connection point 104, and the other end is sequentially fixed to the traction connection point 404 through guide wheels 2D41, 2D42, 2D43, and 2D44;

[0072] Figure 5 It is a schematic diagram of the frame main body structure of the traction type fireproof power battery maintenance vehicle. Among them, a in the figure is the front axonometric view of the frame main body, and b is the rear axonometric view of the frame main body:

[0073] Preferably, a limiting mechanism is arranged inside the frame main body 2. The limiting mechanism is fixedly connected to the water tank 3. The position of the water tank 3 inside the frame main body 2 is positioned through the limiting mechanism and the position is ensured to be fixed, which is beneficial to accurately receiving the falling maintenance platform 1. Specifically, the water tank 3 is placed directly below the maintenance platform 1 and is fixed to the frame main body 2 through eight water tank limiting mechanisms 2S01, 2S02, 2S03, 2S04, 2S05, 2S036, 2S037, and 2S08;

[0074] The low wall of the frame body 2 is fixedly connected with a driver connection point, and is fixedly connected with the flange at the end of the driver 4 through the driver connection point. In this embodiment, the driver 4 is an oil cylinder, and two flanges are provided on the cylinder sleeve of the oil cylinder, which are respectively connected to the driver connection points 2Y01 and 2Y02 provided on the frame body 2, so that the oil cylinder is fixed directly below the frame body 2; traction connection points 401, 402, 403, and 404 are provided at the outer end of the cylinder rod of the oil cylinder;

[0075] See Figure 4 as shown;

[0076] Preferably, insulating pads 8 are arranged on the maintenance platform 1. The insulating pads 8 are in contact with the vehicle battery pack, used to place the vehicle battery pack, and at the same time facilitate the operation of the forklift.

[0077] See Figure 1 、 2 as shown:

[0078] Preferably, a control unit 7 is installed at the bottom end of the side of the frame body 2, used to control the start of the driver 4. The control unit 7 is circuit-connected to an external control system. Specifically, the control unit 7 has a foot switch, and the driving part is controlled to switch between the first working position and the second working position through the foot switch. The switch equipped in the control unit 7 in this structure adopts an ingenious design of alternating action, and its position layout is extremely reasonable. When there is a safety hazard in the battery pack, the maintenance personnel only need to press the switch, and then can quickly evacuate the scene. In this way, not only can the relevant problems be properly handled, but also the personal safety of the maintenance personnel is effectively guaranteed;

[0079] See Figure 2 as shown:

[0080] Preferably, casters 6 are installed at the bottom corners of the frame body 2, and the maintenance vehicle is moved on the use site through the casters 6, which is convenient to use;

[0081] Preferably, the traction member 5 is a steel wire rope, and of course it can also be a non-metallic rope that can bear the weight of the battery pack and the maintenance platform 1.

[0082] Preferably, the driver 4 is an oil cylinder or a cylinder.

[0083] In the above technical solution, a traction type fireproof power battery maintenance vehicle provided by the present invention;

[0084] Usage method:

[0085] Battery pack placement process:

[0086] The driver is in the initial state, that is, the first working state. The upper surface of the maintenance platform 1 is at the same horizontal level as the upper surface of the frame body 2. Place a plurality of insulating pads 8 reasonably on the upper surface of the maintenance platform 1 according to the size of the battery pack. Use a forklift or other equipment to place the battery pack smoothly on the insulating pads 8, and move the maintenance vehicle to a suitable maintenance point;

[0087] Preparatory work before battery pack maintenance:

[0088] Personnel must take protective measures;

[0089] Check whether the equipment is abnormal and ensure that the water level in the water tank 3 is normal;

[0090] Check whether the maintenance tools are complete and in reasonable positions;

[0091] Confirm whether the maintenance plan is reasonable;

[0092] Check whether there are potential safety hazards in the surrounding environment;

[0093] Use the present invention to start repairing the battery pack.

[0094] During maintenance, if an emergency occurs, such as an emergency situation where the battery pack catches fire or burns spontaneously, the maintenance personnel should first start the control unit 7 and then immediately evacuate to ensure their own safety.

[0095] After the control unit 7 is started, the driver 4 extends, and the four traction members 5 will move synchronously with the movement of the piston rod of the driver, and then corresponding actions will occur:

[0096] The traction member 501 moves towards the maintenance platform 1 end through the guide wheels 2D11, 2D12, 2D13, 2D14, 2D15, 2D16;

[0097] The traction member 502 moves towards the maintenance platform 1 end through the guide wheels 2D21, 2D22, 2D23, 2D24, 2D25, 2D26;

[0098] The traction member 503 moves towards the lifting maintenance platform 1 end through the guide wheels 2D31, 2D32, 2D3, 2D34;

[0099] The traction member 504 moves towards the maintenance platform 1 end through the guide wheels 2D41, 2D42, 2D43, 2D44;

[0100] Finally, the battery pack drops into the water tank with the maintenance platform 1, and the battery pack is immersed in saturated salt water, the air is isolated, the temperature is reduced, and the problem is effectively solved.

[0101] The traction - type fire - proof power battery maintenance vehicle hoists the maintenance platform through four traction members, achieving the effect of smooth operation during the movement of the maintenance platform and highly ensuring the synchronism. At the same time, adopting the design method of multi - point suspension can endow the maintenance platform with the function of preventing falling, effectively guaranteeing the safety during its use. In addition, by adopting the connection structure of the driver and the traction member, there is no need to consider the rust - proof treatment of the in - groove communication mechanism. The design is ingenious, the product has a high cost - performance ratio, a simple structure, and the beneficial effect of convenient use;

[0102] Only some exemplary embodiments of the present invention have been described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above - mentioned drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A traction fireproof power battery maintenance vehicle, characterized in that: include: A frame body (2), and a water tank (3) disposed inside the frame body (2); as well as An inspection platform (1), which is used to carry the battery pack to be inspected and is placed above the water tank (3); Wherein, a driver (4) is installed at the bottom of the frame body (2); The end of the driver (4) is connected to a plurality of flexible traction members (5); The traction member (5) forms a traction path along the side wall of the frame body (2), and is connected to a traction connection point at an angle of the maintenance platform (1) at the end of the traction path; The driver (4) has a first working state in which the inspection platform (1) and the upper surface of the frame body (2) are kept coplanar; as well as In the second working state, the traction member (5) is extended to allow the maintenance platform (1) to freely fall into the water tank (3).

2. A traction-type fireproof power battery maintenance vehicle according to claim 1, characterized in that ； The traction path comprises a vertical path parallel to the vertical plane and a water path parallel to the horizontal plane, and the frame body (2) is provided with guide wheels for guiding the traction member (5) to turn at the inflection points of the vertical path and the horizontal path.

3. A traction-type fireproof power battery maintenance vehicle according to claim 2, It is characterized by: The frame body (2) forms a first virtual plane above the water tank (3), and a second virtual plane and a third virtual plane below the water tank (3). On the first virtual plane, the traction member (5) forms a spanning section a along the horizontal path that spans the water tank (3). On the second virtual plane and the third virtual plane, the traction member 5 forms an approaching section b along the horizontal path that approaches the driver 4. The approaching section b is connected to the driver 4 via a detour section c. The spanning section a is hoisted with the inspection platform 1 via a traction section d extending along the inner wall of the water tank 3.

4. A traction-type fireproof power battery maintenance vehicle according to claim 1, characterized in that ； The traction connection points arranged at the corner positions of the quadrilateral maintenance platform (1) are all connected to the traction members (5) that independently control the lifting and lowering of the maintenance platform (1).

5. A traction-type fireproof power battery maintenance vehicle according to claim 1, It is characterized by: A limiting mechanism is arranged inside the frame body (2), and the limiting mechanism is fixedly connected to the water tank (3). A driver connection point is fixedly connected to the lower wall of the frame body (2), and is fixedly connected to a flange at the end of the driver (4) through the driver connection point. Guide blocks are arranged on both sides of the top of the frame body (2).

6. A traction-type fireproof power battery maintenance vehicle according to claim 1, characterized in that ； An insulating pad (8), wherein the insulating pad (8) is arranged on the maintenance platform (1).

7. A traction-type fireproof power battery maintenance vehicle according to claim 1, characterized in that ； A control unit (7) is installed at the bottom end of the side of the frame body (2) for controlling the start-up of the driver (4).

8. A traction-type fireproof power battery maintenance vehicle according to any one of claims 1 to 7, characterized in that ； Casters (6) are installed at the bottom corners of the frame body (2).

9. A traction-type fireproof power battery maintenance vehicle according to any one of claims 1 to 7, characterized in that ； The traction member (5) is a steel wire rope.

10. A traction-type fireproof power battery maintenance vehicle according to any one of claims 1 to 7, characterized in that ； The driver (4) is an oil cylinder or a gas cylinder.

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