A detachable assembled battery box lower cover fixing structure

Abstract

The present invention discloses a detachable assembled battery box lower cover fixing structure, which relates to the technical field of battery box lower covers, including a battery protective shell, a first soft pad is installed on the outer side of the bottom of the battery protective shell, a second soft pad is installed on the bottom of the first soft pad, and a lower cover is installed on the bottom of the second soft pad. The present invention can monitor the distance between one end of the fixed block and the output end of the first laser ranging sensor in real time through a first laser ranging sensor, and then can monitor the tightness and stability of the lower cover installed on the bottom of the battery protective shell in real time through multiple first laser ranging sensors, the second laser ranging sensor can monitor the distance between the square limit block and the output end of the second laser ranging sensor in real time, the square limit block is used to lock the fixed block, and the position of the square limit block is adjusted by using a microprocessor module to control multiple adjustment components, so that the lower cover can be quickly removed from the battery box, thereby improving the installation and disassembly maintenance efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of battery box lower covers, and in particular to a detachable assembled battery box lower cover fixing structure. Background Art

[0002] A battery box, also known as a battery tray or a battery pack lower shell, is a shell or container structure used to hold a battery pack. Its main function is to hold the battery pack and provide protection, support, connection, heat dissipation, and convenient installation and maintenance. The battery box lower cover is an important component of the battery box, and its design and function have an important impact on the safety and performance of the battery.

[0003] The defects of the existing battery box lower cover are:

[0004] 1. Patent document US20140272509A1 discloses a waterproof battery box, but the waterproof battery box in the above document has technical problems such as complicated steps and complicated operations when disassembling;

[0005] 2. Patent document US09159966B2 discloses a battery box, but the above document lacks a device that can monitor in real time whether the lower cover and the battery box are tightly connected;

[0006] 3. Patent document JP2001202936A discloses a battery box structure. However, when disassembling the battery box, the staff needs to disassemble each fixed structure separately, which is cumbersome to disassemble. In addition, once the fixed structure is damaged, the fixed structure cannot be disassembled.

[0007] 4. Patent document CN212323121U discloses a battery box lower cover fixing structure, but the above document cannot adjust the cooling device in real time according to the real-time temperature of the battery pack, making it difficult to ensure that the battery pack is maintained at a stable temperature for use. Summary of the invention

[0008] The object of the present invention is to provide a detachable assembled battery box lower cover fixing structure to solve the technical problems raised in the above background technology.

[0009] To achieve the above-mentioned object, the present invention provides the following technical solutions: a detachable assembled battery box lower cover fixing structure, comprising a battery protective shell, a first soft pad is installed on the outer side of the bottom of the battery protective shell, a second soft pad is installed on the bottom of the first soft pad, a lower cover is installed on the bottom of the second soft pad, and a plurality of fixing structures are installed on the outer side of the top of the battery protective shell, and the fixing structures are used to install the lower cover on the bottom of the battery protective shell;

[0010] The fixing structure includes a fixing box, a first fixing groove is provided on one side of the bottom of the fixing box, a fixing block is movably connected to the inner wall of the first fixing groove, and the bottom of the fixing block is fixedly connected to the outer side of the top of the lower cover, the bottom of the outer wall of the fixing block is installed on the inner wall of the second fixing groove, and the second fixing groove is provided on the outer side of the battery protective shell, and one end of the first fixing groove corresponds to the other end of the second fixing groove, a first laser ranging sensor is embedded and installed on one end of the inner wall of the first fixing groove, a fixing hole is provided on one side of the inner wall of the first fixing groove, and a second laser ranging sensor is embedded and installed on the inner wall of the fixing hole, a through hole is provided on the top of one side of the fixing block, a square limit block is movably connected to the inner wall of the through hole, and the front end of the outer wall of the square limit block is movably connected to the inside of the fixing hole, and an adjustment component is installed on the other end of the square limit block, and the adjustment component is used to adjust the moving position of the square limit block;

[0011] The first laser ranging sensor and the second laser ranging sensor are both electrically connected to a data acquisition module. The distance data collected by the data acquisition module is sent to a microprocessor module. The microprocessor module makes a judgment based on the collected data and sends an instruction to the PLC controller. The PLC controller drives the actuator to work or drives the alarm module according to the received instruction to issue an alarm and contact the staff.

[0012] Preferably, the adjustment component includes a square slide groove, and the tail end of the inner wall of the square slide groove is movably connected to the front end of the outer wall of the square limit block, the inner wall of the square slide groove is movably connected with a bolt, the tail end of the outer wall of the bolt is threadedly connected with a thread groove, and the thread groove is opened in the middle of one end of the square limit block, and a cross opening is opened at one end of the bolt.

[0013] Preferably, an annular groove is provided at the front end of the inner wall of the square slide groove, the inner wall of the annular groove is movably connected with a first gear, and the inner wall of the first gear is fixedly connected to the front end of the outer wall of the bolt, the outer wall of the first gear is meshed with a second gear, a servo motor is installed on the top of the second gear through a transmission rod, and the bottom of the servo motor is installed on the top of the fixed box.

[0014] Preferably, a third laser ranging sensor is embedded and installed at the four corners of the bottom of the battery protective shell, and a laser reflective disk is installed at the four corners of the top of the lower cover.

[0015] Preferably, a fixing frame is installed in the middle of the top of the lower cover, a plurality of partitions are installed on the inner wall of the fixing frame, a plurality of first battery clamping compartments are arranged on the fixing frame through the partitions, a group of first grooves are opened on the inner wall of the first battery clamping compartment, a first rubber pad is installed on the inner wall of the first groove, a first clamping plate is installed on one end of the first rubber pad, and a battery pack is installed on one side of the first clamping plate.

[0016] Preferably, an upper cover is installed on the top of the battery protective shell by screws, and air inlet ducts are installed on both sides of the top of the upper cover, a first air-ventilated protective plate is installed at the bottom of the inner wall of the air inlet duct, a fan is installed at the bottom of the inner wall of the air inlet duct, a second air-ventilated protective plate is installed on the top of the inner wall of the air inlet duct, a connecting rod is installed in the middle of the bottom of the second air-ventilated protective plate, a bearing is installed on the outer wall of the connecting rod, a sealing plate is installed on the outer wall of the bearing, an arc-shaped groove is opened on the outer wall of the air inlet duct, a fixing rod is movably connected to the inner wall of the arc-shaped groove, and one end of the fixing rod is installed on the outer wall of the sealing plate, a connecting plate is installed on the other end of the fixing rod, a push plate is movably connected to the front of the connecting plate, an electric telescopic cylinder is installed on the front of the push plate, an arc-shaped rod is installed on the inner wall of the arc-shaped groove, and the front end of the outer wall of the arc-shaped rod passes through one side of the fixing rod, and the tail end of the outer wall of the arc-shaped rod is movably connected to a pressure spring.

[0017] Preferably, a plurality of second battery clamping compartments are provided at the bottom of the upper cover, a plurality of groups of partition plates are installed on the top of the inner wall of the second battery clamping compartments, a plurality of ventilation grooves are opened in the second battery clamping compartments through the partition plates, and protective cushions are installed at the bottom of the partition plates.

[0018] Preferably, the inner wall of the second battery clamping compartment is provided with a group of second grooves, the inner wall of the second groove is installed with a second rubber pad, one end of the second rubber pad is installed with a second clamping plate, and one side of the second clamping plate is installed on the top of the outer wall of the battery pack.

[0019] Preferably, a plurality of heat dissipation vents are provided on the front and back of the battery protective shell, dust filters are installed on the inner walls of the heat dissipation vents, and a temperature sensor is installed on the inner wall of the battery protective shell. The temperature sensor is used to monitor the temperature data of the battery pack in real time and send it to the data acquisition module.

[0020] Preferably, the third laser ranging sensor realizes data transmission and interaction with the data acquisition module through electrical connection.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can monitor the distance between one end of the fixed block and the output end of the first laser ranging sensor in real time through the first laser ranging sensor, and then can monitor the tightness and stability of the lower cover installed on the bottom of the battery protective shell in real time through multiple first laser ranging sensors. The second laser ranging sensor can monitor the distance between the square limit block and the output end of the second laser ranging sensor in real time. The square limit block is used to lock the fixed block. By using a microprocessor module to control multiple adjustment components to adjust the position of the square limit block, the lower cover can be quickly removed from the battery box, thereby improving the installation and removal maintenance efficiency;

[0023] 2. The present invention provides a third laser distance measuring sensor and a laser reflective disk. When the data detected by the first laser distance measuring sensor and the second laser distance measuring sensor are both within the threshold, when the third laser distance measuring sensor detects that the distance between its output end and the laser reflective disk is greater than the threshold, the microprocessor module can determine that there is a loose connection between the lower cover and the battery protective shell, and then the PLC controller can be used to drive the alarm module to give an alarm and contact the staff, thereby improving the safety of the battery box when in use;

[0024] 3. The present invention sends instructions to the PLC controller through the microprocessor module to control the rotation of each servo motor. The rotation of the servo motor can drive the second gear to rotate and then drive the first gear to rotate. The rotation of the first gear can drive the bolt to rotate, and then the position of the square limit block in the square slide groove can be adjusted, so as to complete the disassembly of the lower cover. When the servo motor is damaged and cannot be used, a cross screwdriver can be inserted into the cross hole at one end of the bolt to manually control the rotation of the bolt, so as to ensure the flexibility of disassembly of the lower cover;

[0025] 4. The present invention obtains the temperature of the battery pack in real time by using a temperature sensor. The microprocessor module controls the electric telescopic cylinder through the PLC controller to drive the push plate to move, and then drives the connecting plate to move. Through the arrangement of the second ventilation protective plate, bearings, sealing plates, arc grooves, arc rod pressure springs and fixed rods, the size of the ventilation holes on the second ventilation protective plate can be adjusted, and then the air intake volume is adjusted according to the real-time monitored battery pack temperature. When the battery pack temperature is low, the second ventilation protective plate is completely sealed, thereby ensuring that the battery pack can be maintained at a stable temperature during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic cross-sectional structural diagram of a fixing box of the present invention;

[0028] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the lower cover of the present invention;

[0030] Figure 5 It is a schematic diagram of the cross-sectional structure of the lower cover of the present invention;

[0031] Figure 6 It is a schematic diagram of the cross-sectional structure of the air inlet pipe of the present invention;

[0032] Figure 7It is a schematic diagram of the top cover structure of the present invention;

[0033] Figure 8 It is a schematic diagram of the top view of the battery protection shell of the present invention;

[0034] Fig. 9 It is a schematic diagram of the system flow of the present invention;

[0035] Fig.10 It is a schematic diagram of the workflow of the present invention.

[0036] In the figure: 1. battery protection shell; 2. first soft pad; 3. second soft pad; 4. lower cover; 5. fixing box; 6. first fixing groove; 7. fixing block; 8. second fixing groove; 9. first laser ranging sensor; 10. fixing hole; 11. second laser ranging sensor; 12. through hole; 13. square limit block; 14. acquisition module; 15. microprocessor module; 16. PLC controller; 17. actuator; 18. drive alarm module; 19. square slide; 20. bolt; 21. thread groove; 22. cross mouth; 23. annular groove; 24. first gear; 25. second gear; 26. servo motor; 27. third laser ranging sensor; 28. laser reflector; 29. ​​fixing frame; 30. Partition; 31. First battery clamping compartment; 32. First groove; 33. First rubber pad; 34. First clamping plate; 35. Battery pack; 36. Upper cover; 37. Air inlet duct; 38. First ventilation protective plate; 39. Fan; 40. Second ventilation protective plate; 41. Connecting rod; 42. Bearing; 43. Sealing plate; 44. Arc groove; 45. Fixing rod; 46. Connecting plate; 47. Push plate; 48. Electric telescopic cylinder; 49. Second battery clamping compartment; 50. Partition plate; 51. Ventilation groove; 52. Protective pad; 53. Second groove; 54. Second rubber pad; 55. Second clamping plate; 56. Heat dissipation port; 57. Dust filter; 58. Temperature sensor; 59. Arc rod; 60. Pressure spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Example 1: Please refer to Figure 1 , Figure 2 and Fig. 9 An embodiment of the present invention provides: a detachable assembled battery box lower cover fixing structure, comprising a battery protective shell 1, a first soft pad 2 is installed on the outer side of the bottom of the battery protective shell 1, a second soft pad 3 is installed on the bottom of the first soft pad 2, a lower cover 4 is installed on the bottom of the second soft pad 3, and a plurality of fixing structures are installed on the outer side of the top of the battery protective shell 1, and the fixing structures are used to install the lower cover 4 on the bottom of the battery protective shell 1;

[0041] The fixing structure includes a fixing box 5, a first fixing groove 6 is provided on one side of the bottom of the fixing box 5, the inner wall of the first fixing groove 6 is movably connected with a fixing block 7, and the bottom of the fixing block 7 is fixedly connected to the outer side of the top of the lower cover 4, the bottom of the outer wall of the fixing block 7 is installed on the inner wall of the second fixing groove 8, and the second fixing groove 8 is provided on the outer side of the battery protective shell 1, and one end of the first fixing groove 6 corresponds to the other end of the second fixing groove 8, a first laser ranging sensor 9 is embedded and installed at one end of the inner wall of the first fixing groove 6, a fixing hole 10 is provided on one side of the inner wall of the first fixing groove 6, and a second laser ranging sensor 11 is embedded and installed on the inner wall of the fixing hole 10, a through hole 12 is provided on the top of one side of the fixing block 7, a square limit block 13 is movably connected to the inner wall of the through hole 12, and the front end of the outer wall of the square limit block 13 is movably connected to the inside of the fixing hole 10, and an adjustment component is installed on the other end of the square limit block 13, and the adjustment component is used to adjust the moving position of the square limit block 13;

[0042] The first laser distance sensor 9 and the second laser distance sensor 11 are both electrically connected to a data acquisition module 14. The distance data collected by the data acquisition module 14 is sent to a microprocessor module 15. The microprocessor module 15 makes a judgment based on the collected data and sends an instruction to a PLC controller 16. The PLC controller 16 drives the actuator 17 to work or drives the alarm module 18 according to the received instruction to give an alarm and contact the staff.

[0043] The four corners of the bottom of the battery protection shell 1 are embedded with a third laser distance sensor 27, and the four corners of the top of the lower cover 4 are installed with a laser reflection plate 28;

[0044] The third laser distance measuring sensor 27 realizes data transmission and interaction with the data acquisition module 14 through electrical connection;

[0045] Furthermore, the first laser ranging sensor 9 can monitor in real time the distance between one end of the fixing block 7 and the output end of the first laser ranging sensor 9, and then the multiple first laser ranging sensors 9 can monitor in real time the tightness and stability of the lower cover 4 installed on the bottom of the battery protective shell 1, and at the same time, the first soft pad 2 and the second soft pad 3 can improve the sealing effect of the battery protective shell 1 and the lower cover 4, and the second laser ranging sensor 11 can monitor in real time the distance between the square limit block 13 and the output end of the second laser ranging sensor 11, and the square limit block 13 is used to lock the fixing block 7. By using the microprocessor module 15 to control multiple adjustment components to adjust the position of the square limit block 13, the lower cover 4 can be quickly removed from the battery box, thereby improving the installation and disassembly maintenance efficiency;

[0046] By setting the third laser ranging sensor 27 and the laser reflecting disk 28, when the data detected by the first laser ranging sensor 9 and the second laser ranging sensor 11 are within the threshold, when the third laser ranging sensor 27 detects that the distance between its output end and the laser reflecting disk 28 is greater than the threshold, it can be judged through the microprocessor module 15 that there is a loose connection between the lower cover 4 and the battery protective shell 1, and then the alarm module 18 can be driven by the PLC controller 16 to give an alarm and contact the staff, thereby improving the safety of the battery box when in use.

[0047] Example 2: Please refer to Figure 2 and Figure 3 , an embodiment provided by the present invention: the adjustment component includes a square slide 19, and the tail end of the inner wall of the square slide 19 is movably connected to the front end of the outer wall of the square limit block 13, the inner wall of the square slide 19 is movably connected with a bolt 20, the tail end of the outer wall of the bolt 20 is threadedly connected with a thread groove 21, and the thread groove 21 is opened in the middle of one end of the square limit block 13, and one end of the bolt 20 is opened with a cross opening 22;

[0048] The front end of the inner wall of the square slide 19 is provided with an annular groove 23, the inner wall of the annular groove 23 is movably connected with a first gear 24, and the inner wall of the first gear 24 is fixedly connected to the front end of the outer wall of the bolt 20, the outer wall of the first gear 24 is meshed with a second gear 25, the top of the second gear 25 is installed with a servo motor 26 through a transmission rod, and the bottom of the servo motor 26 is installed on the top of the fixed box 5;

[0049] Furthermore, the microprocessor module 15 sends instructions to the PLC controller 16 to regulate the rotation of each servo motor 26. The rotation of the servo motor 26 can drive the second gear 25 to rotate and then drive the first gear 24 to rotate. The rotation of the first gear 24 can drive the bolt 20 to rotate, and then the position of the square limit block 13 in the square slide groove 19 can be adjusted to complete the disassembly of the lower cover 4. When the servo motor 26 is damaged and cannot be used, a cross screwdriver can be inserted into the cross opening 22 at one end of the bolt 20 to manually control the rotation of the bolt 20, thereby ensuring the flexibility of disassembly of the lower cover 4.

[0050] Example 3: Please refer to Figure 4 , Figure 5 and Figure 8 , an embodiment provided by the present invention: a fixing frame 29 is installed in the middle of the top of the lower cover 4, a plurality of partitions 30 are installed on the inner wall of the fixing frame 29, a plurality of first battery clamping compartments 31 are arranged on the fixing frame 29 through the partitions 30, a group of first grooves 32 are opened on the inner wall of the first battery clamping compartment 31, a first rubber pad 33 is installed on the inner wall of the first groove 32, a first clamping plate 34 is installed on one end of the first rubber pad 33, and a battery pack 35 is installed on one side of the first clamping plate 34;

[0051] A plurality of second battery clamping compartments 49 are provided at the bottom of the upper cover 36, a plurality of partition plates 50 are installed at the top of the inner wall of the second battery clamping compartment 49, a plurality of ventilation grooves 51 are opened in the second battery clamping compartment 49 through the partition plates 50, and a protective cushion 52 is installed at the bottom of each partition plate 50;

[0052] The inner wall of the second battery clamping compartment 49 is provided with a group of second grooves 53, the inner wall of the second grooves 53 is provided with a second rubber pad 54, one end of the second rubber pad 54 is provided with a second clamping plate 55, and one side of the second clamping plate 55 is provided on the top of the outer wall of the battery pack 35;

[0053] Furthermore, through the arrangement of the lower cover 4 and the upper cover 36, the arrangement of the first rubber pad 33, the first clamping plate 34, the second rubber pad 54 and the second clamping plate 55 in the first battery clamping compartment 31 and the second battery clamping compartment 49 is beneficial to improving the stability of the battery pack 35 during installation.

[0054] Example 4: Please refer to Figure 1 , Figure 6 and Figure 7 , an embodiment provided by the present invention: an upper cover 36 is installed on the top of the battery protective shell 1 by screws, an air inlet pipe 37 is installed through both sides of the top of the upper cover 36, a first air-permeable protective plate 38 is installed at the bottom of the inner wall of the air inlet pipe 37, a fan 39 is installed at the bottom of the inner wall of the air inlet pipe 37, a second air-permeable protective plate 40 is installed at the top of the inner wall of the air inlet pipe 37, a connecting rod 41 is installed in the middle of the bottom of the second air-permeable protective plate 40, a bearing 42 is installed on the outer wall of the connecting rod 41, and a sealing plate 43 is installed on the outer wall of the bearing 42 The outer wall of the air inlet pipe 37 is provided with an arc groove 44, the inner wall of the arc groove 44 is movably connected with a fixing rod 45, and one end of the fixing rod 45 is installed on the outer wall of the sealing plate 43, and the other end of the fixing rod 45 is installed with a connecting plate 46, and the front side of the connecting plate 46 is movably connected with a push plate 47, and the front side of the push plate 47 is installed with an electric telescopic cylinder 48, and the inner wall of the arc groove 44 is installed with an arc rod 59, and the front end of the outer wall of the arc rod 59 passes through one side of the fixing rod 45, and the tail end of the outer wall of the arc rod 59 is movably connected with a pressure spring 60;

[0055] A plurality of second battery clamping compartments 49 are provided at the bottom of the upper cover 36, a plurality of partition plates 50 are installed at the top of the inner wall of the second battery clamping compartment 49, a plurality of ventilation grooves 51 are opened in the second battery clamping compartment 49 through the partition plates 50, a protective cushion 52 is installed at the bottom of the partition plates 50, a group of second grooves 53 are opened on the inner wall of the second battery clamping compartment 49, a second rubber cushion 54 is installed on the inner wall of the second groove 53, a second clamping plate 55 is installed at one end of the second rubber cushion 54, and one side of the second clamping plate 55 is installed at the top of the outer wall of the battery pack 35;

[0056] A plurality of heat dissipation openings 56 are provided on the front and back of the battery protection shell 1. The inner walls of the heat dissipation openings 56 are provided with dustproof filters 57. A temperature sensor 58 is provided on the inner wall of the battery protection shell 1. The temperature sensor 58 is used to monitor the temperature data of the battery pack 35 in real time and send the data to the data acquisition module 14.

[0057] Furthermore, by using the temperature sensor 58 to obtain the temperature of the battery pack 35 in real time, the microprocessor module 15 controls the electric telescopic cylinder 48 through the PLC controller 16 to drive the push plate 47 to move, thereby pushing the connecting plate 46 to move, and through the setting of the second ventilation protective plate 40, the bearing 42, the sealing plate 43, the arc groove 44, the arc rod 59 pressure spring 60 and the fixed rod 45, the size of the ventilation holes opened on the second ventilation protective plate 40 can be adjusted, and then the air intake is adjusted according to the real-time monitored temperature of the battery pack 35, and when the temperature of the battery pack 35 is low, the second ventilation protective plate 40 is completely sealed, thereby ensuring that the battery pack 35 can be maintained at a stable temperature during use.

[0058] Example 5: Please refer to Fig.10 , an embodiment provided by the present invention: the working steps of the detachable assembled battery box lower cover fixing structure are as follows:

[0059] S1, the data of the first laser ranging sensor 9, the second laser ranging sensor 11, the third laser ranging sensor 27 and the temperature sensor 58 can be acquired through the data acquisition module 14, and sent to the microprocessor module 15;

[0060] S2. The temperature of the battery pack 35 is obtained in real time by the temperature sensor 58, and the electric telescopic cylinder 48 is adjusted to drive the push plate 47 to move, thereby pushing the connecting plate 46 to move. The size of the ventilation hole on the second ventilation protective plate 40 can be adjusted by setting the second ventilation protective plate 40, the bearing 42, the sealing plate 43, the arc groove 44, the arc rod 59, the pressure spring 60 and the fixing rod 45;

[0061] S3, the distance between one end of the fixing block 7 and the output end of the first laser ranging sensor 9 can be monitored in real time through the first laser ranging sensor 9, and then the tightness and stability of the lower cover 4 installed on the bottom of the battery protective shell 1 can be monitored in real time through multiple first laser ranging sensors 9;

[0062] S4, the distance between the square limit block 13 and the output end of the second laser distance sensor 11 can be monitored in real time by the second laser distance sensor 11, and the square limit block 13 is used to lock the fixing block 7;

[0063] S5. Through the arrangement of the third laser distance measuring sensor 27 and the laser reflective disk 28, when the third laser distance measuring sensor 27 detects that the distance between its output end and the laser reflective disk 28 is greater than a threshold value, the microprocessor module 15 can determine that there is a loose connection between the lower cover 4 and the battery protective shell 1;

[0064] S6. By using the microprocessor module 15 to control multiple adjustment components to adjust the position of the square limit block 13, the lower cover 4 can be quickly removed from the battery box, thereby improving the installation and removal maintenance efficiency;

[0065] S3 also includes the following steps:

[0066] S31, the first soft pad 2 and the second soft pad 3 can improve the sealing effect of the battery protective shell 1 and the lower cover 4;

[0067] S6 also includes the following steps:

[0068] S61. Send instructions to the PLC controller 16 through the microprocessor module 15 to control the rotation of each servo motor 26. The rotation of the servo motor 26 can drive the second gear 25 to rotate and then drive the first gear 24 to rotate. The rotation of the first gear 24 can drive the bolt 20 to rotate, and then the position of the square limit block 13 in the square slide groove 19 can be adjusted, thereby completing the disassembly of the lower cover 4. When the servo motor 26 is damaged and cannot be used, a cross screwdriver can be used to insert into the cross opening 22 at one end of the bolt 20 to manually control the rotation of the bolt 20, thereby ensuring the flexibility of disassembly of the lower cover 4.

[0069] Working principle: the distance between one end of the fixing block 7 and the output end of the first laser ranging sensor 9 can be monitored in real time through the first laser ranging sensor 9, and then the tightness and stability of the lower cover 4 installed on the bottom of the battery protective shell 1 can be monitored in real time through multiple first laser ranging sensors 9. At the same time, the first soft pad 2 and the second soft pad 3 can improve the sealing effect of the battery protective shell 1 and the lower cover 4. The second laser ranging sensor 11 can monitor the distance between the square limit block 13 and the output end of the second laser ranging sensor 11 in real time. The square limit block 13 is used to lock the fixing block 7. By using the microprocessor module 15 to control multiple adjustment components to adjust the position of the square limit block 13, the lower cover 4 can be quickly removed from the battery box. , improve the efficiency of installation and disassembly maintenance, through the arrangement of the third laser distance sensor 27 and the laser reflective disk 28, when the data detected by the first laser distance sensor 9 and the second laser distance sensor 11 are within the threshold value, when the third laser distance sensor 27 detects that the distance between its output end and the laser reflective disk 28 is greater than the threshold value, it can be judged through the microprocessor module 15 that there is a loose connection between the lower cover 4 and the battery protective shell 1, and then the alarm module 18 can be driven through the PLC controller 16 to alarm and contact the staff, thereby improving the safety of the battery box when in use, and the microprocessor module 15 sends instructions to the PLC controller 16 to control the rotation of each servo motor 26, and the servo The rotation of the servo motor 26 can drive the second gear 25 to rotate and then drive the first gear 24 to rotate. The rotation of the first gear 24 can drive the bolt 20 to rotate, and then the position of the square limit block 13 in the square slide groove 19 can be adjusted, thereby completing the disassembly of the lower cover 4. When the servo motor 26 is damaged and cannot be used, a cross screwdriver can be inserted into the cross opening 22 at one end of the bolt 20 to manually control the rotation of the bolt 20, thereby ensuring the flexibility of disassembly of the lower cover 4. Through the arrangement of the lower cover 4 and the upper cover 36, the arrangement of the first rubber pad 33, the first clamping plate 34, the second rubber pad 54 and the second clamping plate 55 in the first battery clamping compartment 31 and the second battery clamping compartment 49 is conducive to improving the battery The stability of the battery pack 35 during installation is ensured by using a temperature sensor 58 to obtain the temperature of the battery pack 35 in real time. The microprocessor module 15 controls the electric telescopic cylinder 48 through the PLC controller 16 to drive the push plate 47 to move, thereby pushing the connecting plate 46 to move. Through the arrangement of the second ventilation protective plate 40, the bearing 42, the sealing plate 43, the arc groove 44, the arc rod 59 pressure spring 60 and the fixing rod 45, the size of the ventilation holes on the second ventilation protective plate 40 can be adjusted, and then the air intake can be adjusted according to the real-time monitored temperature of the battery pack 35. When the temperature of the battery pack 35 is low, the second ventilation protective plate 40 is completely sealed, thereby ensuring that the battery pack 35 can be maintained at a stable temperature during use.

[0070] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A detachable assembled battery box lower cover fixing structure, comprising a battery protective shell (1), characterized in that: A first soft pad (2) is installed on the outer side of the bottom of the battery protective shell (1), a second soft pad (3) is installed on the bottom of the first soft pad (2), a lower cover (4) is installed on the bottom of the second soft pad (3), and a plurality of fixing structures are installed on the outer side of the top of the battery protective shell (1), the fixing structures are used to install the lower cover (4) on the bottom of the battery protective shell (1); The fixing structure comprises a fixing box (5), one side of the bottom of the fixing box (5) is provided with a first fixing groove (6), the inner wall of the first fixing groove (6) is movably connected with a fixing block (7), and the bottom of the fixing block (7) is fixedly connected to the outer side of the top of the lower cover (4), the bottom of the outer wall of the fixing block (7) is mounted on the inner wall of the second fixing groove (8), and the second fixing groove (8) is provided on the outer side of the battery protective shell (1), and one end of the first fixing groove (6) corresponds to the other end of the second fixing groove (8), and one end of the inner wall of the first fixing groove (6) is fitted with a first fixing block (7). A laser distance measuring sensor (9), wherein a fixing hole (10) is provided on one side of the inner wall of the first fixing groove (6), and a second laser distance measuring sensor (11) is mounted in the inner wall of the fixing hole (10), a through hole (12) is provided on the top of one side of the fixing block (7), a square stop block (13) is movably connected to the inner wall of the through hole (12), and the front end of the outer wall of the square stop block (13) is movably connected to the inside of the fixing hole (10), and an adjustment component is installed on the other end of the square stop block (13), and the adjustment component is used to adjust the moving position of the square stop block (13); The first laser distance measuring sensor (9) and the second laser distance measuring sensor (11) are both electrically connected to a data acquisition module (14); the distance data collected by the data acquisition module (14) is sent to a microprocessor module (15); the microprocessor module (15) makes a judgment based on the collected data and sends an instruction to a PLC controller (16); the PLC controller (16) drives an actuator (17) to operate or drives an alarm module (18) based on the received instruction to generate an alarm and contact a staff member.

2. A detachable assembled battery box lower cover fixing structure according to claim 1, characterized in that: The adjustment component comprises a square slide groove (19), and the rear end of the inner wall of the square slide groove (19) is movably connected to the front end of the outer wall of the square limit block (13), the inner wall of the square slide groove (19) is movably connected with a bolt (20), the rear end of the outer wall of the bolt (20) is threadedly connected with a thread groove (21), and the thread groove (21) is opened in the middle of one end of the square limit block (13), and one end of the bolt (20) is opened with a cross opening (22).

3. The detachable assembled battery box bottom cover fixing structure according to claim 2, characterized in that: The front end of the inner wall of the square slide groove (19) is provided with an annular groove (23), the inner wall of the annular groove (23) is movably connected with a first gear (24), and the inner wall of the first gear (24) is fixedly connected to the front end of the outer wall of the bolt (20), the outer wall of the first gear (24) is meshed with a second gear (25), the top of the second gear (25) is installed with a servo motor (26) through a transmission rod, and the bottom of the servo motor (26) is installed on the top of the fixed box (5).

4. The detachable assembled battery box bottom cover fixing structure according to claim 1, characterized in that: The four corners of the bottom of the battery protection shell (1) are all embedded with third laser distance measuring sensors (27), and the four corners of the top of the lower cover (4) are installed with laser reflection plates (28).

5. The detachable assembled battery box bottom cover fixing structure according to claim 1, characterized in that: A fixing frame (29) is installed in the middle of the top of the lower cover (4), a plurality of partitions (30) are installed on the inner wall of the fixing frame (29), a plurality of first battery clamping compartments (31) are provided on the fixing frame (29) through the partitions (30), a group of first grooves (32) are opened on the inner wall of the first battery clamping compartment (31), a first rubber pad (33) is installed on the inner wall of the first groove (32), a first clamping plate (34) is installed on one end of the first rubber pad (33), and a battery pack (35) is installed on one side of the first clamping plate (34).

6. The detachable assembled battery box bottom cover fixing structure according to claim 1, characterized in that: The top of the battery protective shell (1) is installed with an upper cover (36) by means of screws, air inlet pipes (37) are installed through both sides of the top of the upper cover (36), a first air-permeable protective plate (38) is installed at the bottom of the inner wall of the air inlet pipe (37), a fan (39) is installed at the bottom of the inner wall of the air inlet pipe (37), a second air-permeable protective plate (40) is installed at the top of the inner wall of the air inlet pipe (37), a connecting rod (41) is installed in the middle of the bottom of the second air-permeable protective plate (40), a bearing (42) is installed on the outer wall of the connecting rod (41), a sealing plate (43) is installed on the outer wall of the bearing (42), and the air inlet pipe (37) is installed at the bottom of the second air-permeable protective plate (40). The outer wall of the arc groove (44) is provided with an arc-shaped groove (44), the inner wall of the arc groove (44) is movably connected to a fixing rod (45), one end of the fixing rod (45) is mounted on the outer wall of the sealing plate (43), the other end of the fixing rod (45) is mounted with a connecting plate (46), the front face of the connecting plate (46) is movably connected to a push plate (47), the front face of the push plate (47) is mounted with an electric telescopic cylinder (48), the inner wall of the arc groove (44) is mounted with an arc-shaped rod (59), the front end of the outer wall of the arc-shaped rod (59) passes through one side of the fixing rod (45), and the rear end of the outer wall of the arc-shaped rod (59) is movably connected to a pressure spring (60).

7. A detachable assembled battery box lower cover fixing structure according to claim 6, characterized in that: A plurality of second battery clamping compartments (49) are arranged at the bottom of the upper cover (36); a plurality of groups of partition plates (50) are installed at the top of the inner wall of the second battery clamping compartment (49); a plurality of ventilation grooves (51) are opened in the second battery clamping compartment (49) through the partition plates (50); and protective cushions (52) are installed at the bottom of the partition plates (50).

8. The detachable assembled battery box bottom cover fixing structure according to claim 7, characterized in that: The inner wall of the second battery clamping compartment (49) is provided with a group of second grooves (53), the inner wall of the second grooves (53) is installed with a second rubber pad (54), one end of the second rubber pad (54) is installed with a second clamping plate (55), and one side of the second clamping plate (55) is installed on the top of the outer wall of the battery pack (35).

9. The detachable assembled battery box bottom cover fixing structure according to claim 1, characterized in that: The front and back sides of the battery protection shell (1) are provided with a plurality of heat dissipation openings (56), the inner walls of the heat dissipation openings (56) are provided with dustproof filters (57), and the inner wall of the battery protection shell (1) is provided with a temperature sensor (58), which is used to monitor the temperature data of the battery pack (35) in real time and transmit the temperature data to the data acquisition module (14).

10. A detachable assembled battery box bottom cover fixing structure according to claim 4, characterized in that: The third laser distance measuring sensor (27) realizes data transmission and interaction with the data acquisition module (14) by means of electrical connection.

Images