Explosion-proof electric flat carriage

Abstract

The utility model provides an explosion-proof electric flat carriage which comprises a carriage frame, bottom beams are symmetrically arranged at the bottom of the carriage frame, walking wheels are arranged at the two ends of each bottom beam, a battery box is fixedly arranged in the middle of the bottom of the carriage frame, a battery is arranged in the battery box, and heat exchange plates are arranged on the upper side and the lower side of the battery. Heat dissipation plates parallel to the short edges of the frame are evenly arranged at the bottom of the frame, heat dissipation coil pipes are arranged in the heat dissipation plates, heat exchange coil pipes are arranged on the heat exchange plates, a circulating pump is arranged in the bottom beam, and the heat dissipation coil pipes, the heat exchange coil pipes and the circulating pump are connected to form a circulating loop; collision detection mechanisms are arranged at the bottoms of the two sides of the battery box; according to the utility model, the heat exchange plate absorbs heat inside the battery box, the heat is transferred to the heat dissipation plate through the heat dissipation coil pipe and the circulation loop formed by connecting the heat exchange coil pipe and the circulation pump, and the heat is dissipated outwards through the heat dissipation plate, so that the purposes of reducing the temperature inside the battery box and maintaining the environment temperature of the battery to be moderate are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of handling equipment, and particularly relates to an explosion-proof electric flat car. Background Art

[0002] An electric flat car is a flat transportation vehicle driven by electricity, mainly used for short-distance handling of heavy objects or large materials in places such as factories, warehouses, and construction sites. It combines the load-bearing capacity of a traditional flat car and the convenience of electric drive, and is a common tool in modern logistics and industrial transportation.

[0003] Currently, in order to improve the endurance of the electric flat car, extend its service life, and achieve fast charging, lithium batteries are usually used as the power source of the electric flat car. However, lithium batteries are prone to thermal runaway, resulting in fires and explosions when they are collided or continuously exposed to high-temperature environments.

[0004] Therefore, it is necessary to design an explosion-proof electric flat car that can prevent the battery from being collided and maintain a moderate temperature in the battery environment to solve the current technical problems. Summary of the Utility Model

[0005] Aiming at the deficiencies in the prior art, the utility model provides an explosion-proof electric flat car that can prevent the battery from being collided and maintain a moderate temperature in the battery environment.

[0006] The technical solution of the utility model is as follows: an explosion-proof electric flat car, including a frame, the bottom of the frame is symmetrically provided with bottom beams, both ends of the bottom beams are provided with traveling wheels, the bottom of the frame is centrally and fixedly provided with a battery box, a battery is arranged inside the battery box, heat exchange plates are arranged on the upper and lower sides of the battery, heat dissipation plates parallel to the short side of the frame are evenly arranged at the bottom of the frame, a heat dissipation coil is arranged inside the heat dissipation plate, a heat exchange coil is arranged on the heat exchange plate, a circulation pump is arranged inside the bottom beam, and the heat dissipation coil, the heat exchange coil and the circulation pump are connected into a circulation loop; collision detection mechanisms are arranged at both bottom sides of the battery box.

[0007] Further, ventilation windows corresponding to the heat dissipation plates are opened on the two bottom beams, and a fan for driving the air flow between the heat dissipation plates is arranged inside the bottom beam.

[0008] Further, the collision detection mechanism has a collision plate elastically supported on one bottom side of the battery box, and a travel switch corresponding to the collision plate is arranged on the side of the battery box; when the travel switch is triggered, the movement of the traveling wheels stops.

[0009] Further, springs are arranged between both ends of the collision plate and the battery box, and the collision plate is elastically supported on one side of the battery box through the springs.

[0010] Furthermore, a sliding tube is arranged inside the spring, one end of the sliding tube is fixedly connected to the side of the battery box, and a sliding rod is slidably arranged inside the other end of the sliding tube, and the end of the sliding rod is fixedly connected to the collision plate.

[0011] Furthermore, a sliding cavity is arranged inside the sliding tube, and a sliding block slidably arranged inside the sliding cavity is fixedly arranged at one end of the sliding rod.

[0012] Furthermore, a buffer plate is fixedly arranged on a side of the collision plate away from the battery box, and the buffer plate is a rubber plate fixedly arranged on the collision plate.

[0013] Furthermore, a temperature sensor is arranged inside the battery box.

[0014] Beneficial effects of the utility model:

[0015] (1) In the present invention, the heat exchange plate absorbs the heat inside the battery box, and transfers the heat to the heat dissipation plate through the circulation loop formed by the heat dissipation coil, the heat exchange coil and the circulation pump, and the heat is dissipated to the outside through the heat dissipation plate, so as to reduce the internal temperature of the battery box and maintain a moderate battery environment temperature;

[0016] (2) When the battery box is about to collide with the electric trolley during its movement, the external obstacle first contacts the collision detection mechanism. After the collision detection mechanism contacts the obstacle, the electric trolley stops moving, thereby preventing the battery box and the internal batteries from being hit. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0018] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0019] Figure 3 The structure diagram of the collision detection mechanism in the utility model is shown in FIG. Figure 1 .

[0020] Figure 4 The structure diagram of the collision detection mechanism in the utility model is shown in FIG. Figure 2 .

[0021] Figure 5 It is a structural schematic diagram of the sliding tube and the sliding rod in the utility model. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and does not constitute any limitation to the present utility model and its application or use. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present utility model thorough and complete, and to fully convey the scope of the present utility model to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions and values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0023] The "first", "second" and similar terms used in the present utility model do not denote any order, quantity or importance, but are only used to distinguish different parts. Words such as "comprising" or "including" mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] As Figures 1 to 5 shown, the explosion-proof electric flat car includes a frame 1. Bottom beams 2 are symmetrically arranged at the bottom of the frame 1. Travel wheels 3 are arranged at both ends of the bottom beams 2. A battery box 4 is fixedly arranged in the middle of the bottom of the frame 1. A battery 41 is arranged inside the battery box 4. Heat exchange plates 42 are arranged on the upper and lower sides of the battery 41. Heat dissipation plates 6 parallel to the short side of the frame 1 are evenly arranged at the bottom of the frame 1. A heat dissipation coil 61 is arranged inside the heat dissipation plate 6. A heat exchange coil is arranged on the heat exchange plate 42. A circulation pump is arranged inside the bottom beam 2. The heat dissipation coil 61, the heat exchange coil and the circulation pump are connected into a circulation loop, and the circulation loop has a cooling medium such as water; Collision detection mechanisms 5 are arranged at both bottom sides of the battery box 4; In this embodiment, the heat exchange plate 42 absorbs the heat inside the battery box 4, and transfers the heat to the heat dissipation plate 6 through the circulation loop formed by the heat dissipation coil 61, the heat exchange coil and the circulation pump, and the heat is dissipated to the outside through the heat dissipation plate 6, so as to achieve the purpose of reducing the temperature inside the battery box 4 and maintaining a moderate battery environment temperature; During the movement of the electric flat car, when the battery box 4 is about to collide, the external obstacle first contacts the collision detection mechanism 5, and the collision detection mechanism 5 stops the electric flat car from continuing to move after contacting the obstacle, thereby avoiding the battery box 4 and the internal battery from being collided.

[0025] In some embodiments, ventilation windows 21 corresponding to the heat dissipation plates 6 are opened on the two bottom beams 2. A fan for driving the air flow between the heat dissipation plates 6 is arranged inside the bottom beam 2. After the fan is started, it can drive the air between the heat dissipation plates 6 to flow faster, and by increasing the air flow speed on the surface of the heat dissipation plate 6, its heat dissipation efficiency can be improved.

[0026] In some embodiments, as Figures 3 to 5 shown, the collision detection mechanism 5 has a collision plate 54 elastically supported at the bottom of one side of the battery box 4, and a travel switch 55 corresponding to the collision plate 54 is arranged on the side of the battery box 4; when the travel switch 55 is triggered, the movement of the walking wheels 3 stops;

[0027] During the movement of the electric flat car, when the battery box 4 is about to collide, the external obstacle first contacts the collision plate 54 in the collision detection mechanism 5. The collision plate 54 contacts the obstacle, and as the electric flat car moves, the collision plate 54 is pushed to trigger the travel switch 55. After the controller detects the trigger signal of the travel switch 55, it controls the walking wheels 3 to stop moving, thereby avoiding the collision of the battery box 4 and the internal battery 41.

[0028] In some embodiments, springs 53 are arranged between both ends of the collision plate 54 and the battery box 4, and the collision plate 54 is elastically supported on one side of the battery box 4 through the springs 53; when a collision occurs, the collision plate 54 moves towards the battery box 4, compressing the springs 53 and triggering the travel switch 55; after the collision contact, the springs 53 reset, pushing the collision plate 54 away from the battery box 4 and releasing the travel switch 55.

[0029] In some embodiments, a sliding tube 51 is arranged inside the spring 53. One end of the sliding tube 51 is fixedly connected to the side of the battery box 4, and a sliding rod 52 is slidably arranged inside the other end of the sliding tube 51. The end of the sliding rod 52 is fixedly connected to the collision plate 54; the collision plate 54 is slidably connected with the sliding tube 51 through the sliding rod 52, ensuring the stability of the movement of the collision plate 54.

[0030] In some embodiments, as Figure 5 shown, a sliding cavity 511 is arranged inside the sliding tube 51, and a slider 521 slidably arranged inside the sliding cavity 511 is fixedly arranged at one end of the sliding rod 52; the sliding rod 52 slides inside the sliding cavity 511 through the slider 521, and the slider 521 and the sliding rod 52 can be prevented from sliding out of the inside of the sliding cavity 511.

[0031] In some embodiments, a buffer plate 56 is fixedly arranged on the side of the collision plate 54 facing away from the battery box 4. The buffer plate 56 is a rubber plate fixedly arranged on the collision plate 54; the rubber plate can play a certain buffering role for the collision plate 54 during a collision, reducing the damage to the collision plate 54 caused by the collision.

[0032] In some embodiments, a temperature sensor 43 is arranged inside the battery box 4. The temperature sensor 43 is used to detect the real-time temperature inside the battery box 4. When the temperature is greater than the set temperature in the controller, the controller controls the circulating pump and the fan to start, and dissipates heat from the inside of the battery box 4.

[0033] So far, the embodiments of the present utility model have been described in detail. To avoid obscuring the concept of the present utility model, some details well known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0034] The above-described embodiments only represent some implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An explosion-proof electric flat car, characterized in that: The invention comprises a frame, wherein a bottom beam is symmetrically arranged at the bottom of the frame, walking wheels are arranged at both ends of the bottom beam, a battery box is fixedly arranged at the center of the bottom of the frame, batteries are arranged inside the battery box, heat exchange plates are arranged on the upper and lower sides of the batteries, heat sinks parallel to the short sides of the frame are evenly arranged at the bottom, heat sinks are arranged inside the heat sinks, heat exchange coils are arranged on the heat exchange plates, a circulation pump is arranged inside the bottom beam, and the heat sink coils, the heat exchange coils and the circulation pump are connected to form a circulation loop; collision detection mechanisms are arranged at the bottoms of both sides of the battery box.

2. The explosion-proof electric flat car according to claim 1 is characterized in that: The two bottom beams are provided with ventilation windows corresponding to the heat sinks, and a fan for driving air flow between the heat sinks is arranged inside the bottom beams.

3. The explosion-proof electric flat car according to claim 1 is characterized in that: The collision detection mechanism has a collision plate elastically supported at the bottom of one side of the battery box, and a travel switch corresponding to the collision plate is arranged on the side of the battery box; when the travel switch is triggered, the movement of the walking wheel is stopped.

4. The explosion-proof electric flat car according to claim 3 is characterized in that: Springs are arranged between the two ends of the collision plate and the battery box, and the collision plate is elastically supported on one side of the battery box by the springs.

5. The explosion-proof electric flat car according to claim 4 is characterized in that: A sliding tube is arranged inside the spring, one end of which is fixedly connected to the side of the battery box, and a sliding rod is slidably arranged inside the other end of the sliding tube, and the end of the sliding rod is fixedly connected to the collision plate.

6. The explosion-proof electric flat car according to claim 5 is characterized in that: A sliding cavity is arranged inside the sliding tube, and a sliding block slidably arranged inside the sliding cavity is fixedly arranged at one end of the sliding rod.

7. The explosion-proof electric flat car according to claim 3 is characterized in that: A buffer plate is fixedly arranged on a side of the collision plate away from the battery box, and the buffer plate is a rubber plate fixedly arranged on the collision plate.

8. The explosion-proof electric flat car according to claim 1 is characterized in that: A temperature sensor is arranged inside the battery box.

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