A battery box facilitating installation and removal of a battery module

Abstract

The application relates to a battery box facilitating installation and removal of battery modules, comprising a box body and a box cover used for sealing the box body, and a plurality of battery modules distributed in parallel in the box body; the box body is provided with positioning columns detachably connected with two ends of the battery modules; the battery module comprises a module body and handles arranged at two ends of the module body, and the two ends of the module body are provided with holding positions for accommodating the handles; when the battery module is pulled by the handles and placed into the box body, the handles drive the driving seat to move upwards and compress the elastic element, the clamping jaw is away from the positioning column, the positioning column is guaranteed to position the battery module, after the battery module is placed, the driving seat moves downwards under the returning action of the elastic element, the clamping jaw is driven to be close to the positioning column, and then the clamping jaw locks the positioning column, so that the battery module is fixed in the box body, the installation and removal of the battery module are more rapid and convenient, and the use is more convenient.

Description

Technical Field

[0001] This invention relates to the field of new energy battery technology, specifically a battery box that facilitates the installation and removal of battery modules. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source. Currently, new energy vehicles mainly include four types: hybrid electric vehicles (HEVs), battery electric vehicles (BEVs, including solar-powered vehicles), fuel cell electric vehicles (FCEVs), and other new energy vehicles (such as supercapacitors, flywheels, and other high-efficiency energy storage devices). The power batteries for electric vehicles are currently mainly divided into two categories: rechargeable batteries and fuel cells. Among these, rechargeable battery technology is the most mature, hence its widespread application in electric vehicles. Rechargeable batteries in electric vehicles include lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries, among others.

[0003] In existing technologies, battery modules are mostly installed inside battery boxes and secured with bolts. This makes the installation and removal of battery modules cumbersome. Furthermore, to achieve higher vehicle mileage, the number of batteries within the battery box needs to be maximized. This results in significant losses in the battery cooling and heat dissipation structure within the box, which negatively impacts battery performance. Therefore, to address these issues, a battery box that facilitates the installation and removal of battery modules is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a battery box that facilitates the installation and removal of battery modules, thereby solving the problems of cumbersome battery module installation and removal and poor battery cooling quality in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a battery box that facilitates the installation and removal of battery modules, comprising a box body and a box cover for encapsulating the box body, and further comprising a plurality of battery modules arranged in parallel within the box body;

[0006] The housing is equipped with positioning posts that can be detachably connected to both ends of the battery module.

[0007] The battery module includes a module body and handles at both ends of the module body. Each end of the module body has a gripping position for accommodating the handle. Each gripping position has mounting holes corresponding to positioning posts. The top and bottom ends of the mounting holes are respectively provided with a top plate and a bottom plate connected to the module body. The top and bottom plates are slidably connected to the ends of the handles and positioning posts that extend into the mounting holes. A drive seat is vertically slidably mounted within the mounting holes. The top end of the drive seat is connected to the end of the handle that extends into the mounting holes. An elastic element is provided between the top plate and the drive seat, sleeved on the outside of the bottom end of the handle. A gripper is horizontally slidably connected to the bottom end of the mounting holes. The bottom end of the drive seat connects to and drives the gripper to slide horizontally, locking and unlocking the positioning posts.

[0008] Preferably, the top of the positioning post is provided with an annular groove, and a plurality of grippers are provided, the bottom of each of the grippers being provided with a locking platform that mates with the groove.

[0009] Preferably, the top of the drive seat is a limiting platform with a sliding connection mounting hole, the bottom of the drive seat is provided with a support, the end of the support away from the drive seat is provided with a pin, and the top of the gripper is provided with an inclined guide groove, which is engaged with the pin at the end of the support.

[0010] Preferably, the inner compartment includes an air inlet end plate and an air outlet end plate respectively disposed at both ends of the inner cavity of the box. A plurality of pairs of support plates disposed inside the box are connected between the air inlet end plate and the air outlet end plate. The two pairs of support plates are symmetrically arranged. The air inlet end plate, the air outlet end plate, and the two pairs of support plates form an installation cavity for placing the battery module. The support plate is a cold-rolled steel plate with at least one stepped structure. One of the stepped top surfaces of the support plate is used to install a positioning post and corresponds to the bottom surface of the battery module.

[0011] Preferably, the bottom of the support plate is provided with an air guide port, and the bent parts of the support plates at both ends of the battery module respectively form an air inlet cavity and an air outlet cavity located on both sides of the mounting cavity. The air inlet cavity and the air outlet cavity are connected to the mounting cavity through the air guide port. The two ends of the housing are respectively provided with an air inlet and a lower air outlet, and the air inlet and the lower air outlet cavity are connected to the air inlet cavity and the air outlet cavity respectively.

[0012] Preferably, it also includes an inner compartment disposed within the box body, the inner compartment further including a cable trough disposed within the box body, the two ends of the cable trough being connected to an air inlet end plate and an air outlet end plate respectively, and the two sides of the cable trough being connected to a support plate.

[0013] Preferably, it also includes several lateral air guide assemblies arranged in parallel within the mounting cavity, with the battery module located between adjacent lateral air guide assemblies. Each lateral air guide assembly includes an air guide chamber connected to a support plate at both ends, a lower support plate provided below the air guide chamber, and fins extending into the inner cavity of the air guide chamber arranged in parallel on the top surface of the lower support plate.

[0014] Preferably, the top surface inside the cover is provided with an upper exhaust duct for ventilation, and the battery module also includes a heat dissipation duct disposed on the top surface of the module body. One end of the heat dissipation duct is detachably connected to the air guide chamber, and the other end of the heat dissipation duct is detachably connected to the upper exhaust duct.

[0015] This invention has at least the following beneficial effects:

[0016] 1. This invention uses mounting holes to accommodate the drive seat and grippers, and the top and bottom plates constrain both ends of the mounting holes, guiding the handle and positioning post respectively. An elastic element provides downward elastic support to the drive seat. When the battery module is lifted and placed into the housing using the handle, the grippers move away from the positioning post, ensuring the positioning post positions the battery module. After placement, the drive seat moves downward under the return action of the elastic element, driving the grippers closer to the positioning post, thus locking the positioning post and fixing the battery module inside the housing. When the handle is lifted, the handle moves the drive seat upward and compresses the elastic element, causing the drive seat to disengage the grippers from the positioning post, releasing the engagement between the mounting plate and the slot. This makes the installation and removal of the battery module faster and more convenient, and easier to use.

[0017] 2. This invention uses an internal compartment for positioning and installing the battery module. A cold-rolled support plate, air inlet plate, air outlet plate, and cable tray are combined to form an installation cavity for the battery module, an air inlet cavity for introducing flowing air, and an air outlet cavity for discharging hot air within the housing. A side-guided air assembly and a heat sink are used to form the installation slot for the battery module. Simultaneously, the side-guided air assembly, in conjunction with the heat sink and exhaust pipe, guides the air entering the installation cavity into the heat sink. Thus, through the combined action of the heat sink, side-guided air assembly, and heat sink, the module body is cooled from all angles, accelerating the cooling speed and effectively improving the heat dissipation quality of the battery module. Furthermore, the structure is more compact, achieving superior cooling and heat dissipation while ensuring the vehicle's mileage design requirements. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the unfolded structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal layout of the box in this invention;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner compartment;

[0022] Figure 5 This is a schematic diagram of the exploded structure of the inner compartment;

[0023] Figure 6 This is a three-dimensional structural diagram of the positioning column;

[0024] Figure 7 This is a schematic diagram of a partial unfolded structure of the battery module;

[0025] Figure 8 A three-dimensional structural diagram of the module body from another perspective;

[0026] Figure 9 This is a three-dimensional structural diagram of the drive unit;

[0027] Figure 10 This is a schematic diagram of the three-dimensional structure of the gripper;

[0028] Figure 11 This is a three-dimensional structural diagram of a heat pipe;

[0029] Figure 12 A three-dimensional structural diagram of the lateral wind guide component;

[0030] Figure 13 A schematic diagram of the exploded structure of a lateral wind guide component;

[0031] Figure 14 This is a schematic diagram of the three-dimensional structure of the heat sink.

[0032] In the attached diagram, 1 represents the box body; 2 represents the box lid.

[0033] 3. Inner compartment; 31. Cable tray; 32. Air inlet end plate; 33. Air outlet end plate; 34. Support plate; 35. Positioning post; 36. Slot; 37. Air guide; 38. Mounting cavity; 39. Air inlet cavity; 310. Air outlet cavity;

[0034] 4. Battery module; 41. Module body; 42. Grip position; 43. Mounting hole; 44. Handle; 45. Top plate; 46. Bottom plate; 47. Drive base; 48. Limiting platform; 49. Support; 410. Elastic element; 411. Locking bolt; 412. Gripper; 413. Locking platform; 414. Guide groove; 415. Guide groove; 416. Heat dissipation pipe;

[0035] 5. Lateral air guide assembly; 51. Air guide chamber; 52. Air outlet; 53. Lower support plate; 54. Fins; 55. Process groove;

[0036] 6. Upper exhaust duct; 7. Heat sink; 8. Connecting plate; 9. Buffer pad; 10. Sealing gasket; 11. Air inlet; 12. Lower exhaust vent. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] Please see Figure 1-10 The present invention provides a technical solution: a battery box that facilitates the installation and removal of battery modules, including a box body 1 and a box cover 2 for enclosing the box body 1, and also including a plurality of battery modules 4 arranged in parallel within the box body 1;

[0040] The housing 1 is provided with positioning posts 35 that can be detachably connected to both ends of the battery module 4.

[0041] The battery module 4 includes a module body 41 and handles 44 disposed at both ends of the module body 41. Both ends of the module body 41 have grip positions 42 for accommodating the handles 44. Specifically, the grip positions 42 are recessed grooves. Each grip position 42 has a mounting hole 43 corresponding to a positioning post 35. Specifically, the top end of the positioning post 35 extends into the mounting hole 43. The mounting hole 43 is a stepped through hole. The top and bottom ends of the mounting hole 43 are respectively provided with a top plate 45 and a bottom plate 46 connected to the module body 41. The top plate 45 and bottom plate 46 are slidably connected to the handles 44 and the end of the positioning post 35 extending into the mounting hole 43, respectively. Specifically, the top plate 45 is installed within the grip position 42, and the end face of the top plate 45 has an opening... A through hole is provided for the handle 44 to extend into the mounting hole 43. The base plate 46 is recessed and installed on the bottom surface of the end of the module body 41. The end face of the base plate 46 has a through hole that mates with the positioning post 35. This through hole communicates with the mounting hole 43. A drive seat 47 is vertically slidably installed in the mounting hole 43. The top of the drive seat 47 is connected to the end of the handle 44 that extends into the mounting hole 43. Specifically, the top surface of the drive seat 47 has a square countersunk hole. The bottom end of the handle 44 has a square shaft end that mates with the square countersunk hole on the top surface of the drive seat 47. A locking bolt 411 that is recessed and installed at the bottom end of the drive seat 47 and connected to the bottom end of the handle 44 is also provided. A spring is provided between the top plate 45 and the drive seat 47 and sleeved on the outside of the bottom end of the handle 44. Specifically, the elastic element 410 is a spring, which provides a downward restoring force to the drive seat 47. A gripper 412 is horizontally slidably connected to the bottom end of the mounting hole 43. The bottom end of the drive seat 47 connects to and drives the gripper 412 to slide horizontally and lock and unlock the positioning post 35. Specifically, when the drive seat 47 moves downward, the gripper 412 approaches the positioning post 35 and clamps it; when the drive seat 47 moves upward, the gripper 412 moves away from the positioning post 35 and releases the clamping. Thus, the drive seat 47 and gripper 412 can be accommodated and installed through the mounting hole 43, and the top plate 45 and bottom plate 46 constrain both ends of the mounting hole 43. The handle 44 and positioning post 35 are guided respectively, and the elastic element 410 provides downward elastic support to the drive seat 47. When the battery module 4 is lifted by the handle 44 and placed into the housing 1, the gripper 412 moves away from the positioning post 35, ensuring that the positioning post 35 positions the battery module 4. After placement, under the return action of the elastic element 410, the drive seat 47 moves down, and the drive gripper 412 moves closer to the positioning post 35, thereby locking the positioning post 35 and fixing the battery module 4 inside the housing 1. When the handle 44 is lifted, the handle 44 drives the drive seat 47 to move up and compress the elastic element 410, thereby driving the gripper 412 to disengage from the positioning post 35, releasing the engagement between the card slot 413 and the card groove 36.Battery module 4 is easier and more convenient to install and remove, making it more user-friendly.

[0042] The mounting hole 43 has a guide groove 415 at one end near the base plate 46. The gripper 412 is horizontally slidably installed in the guide groove 415. Specifically, the end face of the bottom of the gripper 412 contacts the top surface of the base plate 46. The base plate 46 and the guide groove 415 cooperate to accommodate and position the gripper 412, and the guide groove 415 guides the horizontal sliding of the gripper 412.

[0043] During the upward stroke of the handle 44 (or the upward stroke of the drive seat 47 in the mounting hole 43 or the horizontal outward sliding stroke of the gripper 412), the sum of the maximum stresses of the elastic element 410 compressed in the battery module 4 is less than the weight of the battery module. Therefore, during the process of releasing the gripper 412 from locking the positioning post 35, the module body 41 will not move upward and interfere with the unlocking action.

[0044] The positioning post 35 has an annular groove 36 at its top end. Several grippers 412 are provided. Specifically, several grippers 412 are arranged in a ring on the outside of the drive seat 47. The bottom end of each gripper 412 is provided with a locking platform 413 that cooperates with the groove 36. Specifically, when several grippers 412 come together, the locking platforms 413 at their bottom ends form an annular protrusion that cooperates with the groove 36. The locking platform 413 can be inserted into the groove 36, and the grippers 412 lock the positioning post 35.

[0045] The top of the drive seat 47 is a limiting platform 48 that slides through the mounting hole 43. Specifically, the vertical sliding movement of the limiting platform 48 within the mounting hole 43 is limited upward by the stepped surface of the mounting hole 43. The bottom of the drive seat 47 is provided with a support 49, and a pin is provided at the end of the support 49 facing away from the drive seat 47. The top of the gripper 412 has an inclined guide groove 414. Specifically, the top of the gripper 412 has a groove that mates with the support 49, and elongated through guide grooves 414 are provided on both sides of this groove. The guide grooves 414 and the ends of the support 49... The pin engages with the slot, allowing the limit platform 48 to engage with the mounting hole 43, thus sliding the drive seat 47 within the mounting hole 43. The pin also engages with the guide groove 414, connecting the support platform 49 and the gripper 412 along the guide groove 414. When the drive seat 47 moves downwards, the pin at the end of the support platform 49 slides relative to the guide groove 414, driving the gripper 412 closer to the positioning post 35. When the drive seat 47 moves upwards, the pin at the end of the support platform 49 slides relative to the guide groove 414, driving the gripper 412 away from the positioning post 35, facilitating locking and unlocking of the positioning post 35.

[0046] In this embodiment, a positioning post 35 is provided inside the housing 1, and the positioning post 35 cooperates with the bottom plate 36 and mounting hole 43 at the end of the battery module 4 to position the module body 41.

[0047] During installation, when the battery module 4 is lifted by the handle 44, the handle 44 drives the drive seat 47 to move upward and compresses the elastic element 410. Then the drive seat 47 drives the grippers 412 to move away from each other, making it easier for the module body 41 to cooperate with the positioning post 35.

[0048] After placement, release handle 44. Under the return action of elastic element 410, drive seat 47 moves down and drive gripper 412 approaches positioning post 35. Then gripper 412 locks positioning post 35, thereby fixing battery module 4 in housing 1.

[0049] When disassembling the battery module 4, as the lifting handle 44 moves the drive seat 47 upward to its upward end point, the elastic element 410 is compressed, and the drive seat 47 drives the gripper 412 to disengage from the positioning post 35, thus releasing the engagement between the card table 413 and the card slot 36.

[0050] When the lifting handle 44 moves the drive seat 47 to its upward end point, the gripper 412 completely disengages from the positioning post 35, and the module body 41 can be removed by the handle 44.

[0051] Example 2

[0052] Please see Figure 2-5 The difference from Example 1 is as follows:

[0053] The system also includes an inner compartment 3 located within the housing 1. The inner compartment 3 includes an air inlet plate 32 and an air outlet plate 33 located at opposite ends of the inner cavity of the housing 1. Several pairs of support plates 34 are connected between the air inlet plate 32 and the air outlet plate 33, and are symmetrically arranged within the housing 1. Specifically, two or four support plates 34 are provided, arranged in pairs, symmetrically distributed at both ends of the battery module 4. The air inlet plate 32, the air outlet plate 33, and the pairs of support plates 34 form a mounting cavity 38 for placing the battery module 4. Specifically, the inner compartment 3 contains multiple parallel battery modules mounted within it, formed by the pairs of support plates 34. In the installation area of ​​4, the support plate 34 is a cold-rolled steel plate with at least one stepped structure. Specifically, the support plate 34 is a cold-rolled stainless steel plate with multiple continuous reverse right-angle stepped surfaces. One of the top surfaces of the steps of the support plate 34 is used to install the positioning post 35 and corresponds to the bottom surface of the battery module 4. Specifically, the bottom surface of the step of the support plate 34 for installing the positioning post 35 is welded with a nut. The bottom end of the positioning post 35 is threadedly connected to the nut. The positioning post 35 can be installed through the cold-rolled support plate 34, and the end of the battery module 4 is positioned by the positioning post 35. Then, the support plate 34 supports the end of the battery module 4 and reserves space below the battery module 4, making the structure more stable.

[0054] The support plate 34 has an air guide 37 at its bottom. The bent portions of the support plates 34 at both ends of the battery module 4 form an air inlet 39 and an air outlet 310 located on either side of the mounting cavity 38. Specifically, the bend of the support plate 34 forms a cavity on the side away from the battery module 4. Both the air inlet 39 and the air outlet 310 are connected to the mounting cavity 38 through the air guide 37. The housing 1 has an air inlet 11 and a lower air outlet 12 at both ends, which are connected to the air inlet 39 and the air outlet 310, respectively. Specifically, the air inlet 11 penetrates the air inlet end plate 32 and connects to the air inlet 39. The air inlet 11 is used to connect to a ventilator or other equipment that pumps in cold air, introducing outside air into the housing. The air inlet 11 is connected to the air inlet cavity 39. The lower exhaust port 12 passes through the exhaust end plate 33 and is connected to the exhaust cavity 310. The lower exhaust port 12 is used to discharge the heat-exchanged air through the exhaust cavity 310. The air inlet 11 is connected to a fan for air intake, and the lower exhaust port 12 is connected to a pipeline to discharge the hot air to the rear side in the direction of vehicle travel. Thus, the outside air (in the direction of vehicle travel) is introduced into the air inlet cavity 39 through the air inlet 11, and then diverted to the mounting cavity 38 through the air inlet cavity 39 and the air guide port 37 to cool the battery module 4. The heat-exchanged air enters the exhaust cavity 310 through the air guide port 37 and is discharged to the vehicle exhaust pipeline through the lower exhaust port 12, which accelerates the cooling speed of the module body 41 and effectively improves the heat dissipation quality of the battery module 4.

[0055] The inner compartment 3 also includes a wire trough 31 disposed within the housing 1. Specifically, the wire trough 31 is disposed between two adjacent pairs of support plates 34, and the two sides of the wire trough 31 are welded to the top edge of the adjacent support plates 34. The two ends of the wire trough 31 are respectively connected to the air inlet end plate 32 and the air outlet end plate 33. Specifically, the cross-section of the wire trough 31 is U-shaped, and the U-shaped groove is used for centralized wiring of the wire harness. The two ends of the wire trough 31 are welded to the alligator air inlet end plate 32 and the air outlet end plate 33. The two sides of the wire trough 31 are connected to the support plates 34. Specifically, the wire trough 31 is located above the air inlet cavity 39. The wire trough 31 and the support plates 34 on both sides form the air inlet cavity 39 that connects to the air inlet 11. The installation of the two adjacent pairs of support plates 34 can be positioned through the wire trough 31, and the connecting wires of the module body 41 can be accommodated through the wire trough 31, which makes it easier to centrally manage the wire harness.

[0056] The top of the housing 1 is connected to a connecting plate 8. Specifically, the outer edge of the bottom surface of the connecting plate 8 is welded to the top edge of the housing 1. The connecting plate 8 is connected to the top of the inner compartment 3. Specifically, the connecting plate 8 is connected to the top of the support plate 34, the air inlet plate 32, and the air outlet plate 33 by rivet nuts or by welding. The top surface of the connecting plate 8 is provided with a sealing gasket 10. The sealing gasket 10 is used to seal the housing 1 and the cover 2. The connecting plate 8 forms a plane on the top edge of the housing 1 for installing the cover 2, and the inner compartment 3 is fixed by the connecting plate 8.

[0057] The system also includes a buffer pad 9 installed inside the housing 1. The buffer pad 9 engages with the end of the battery module 4. Specifically, the buffer pad 9 is laid on the plane of the support plate 34 used for mounting the positioning post 35. The end face of the buffer pad 9 has through holes corresponding to the positioning post 35. The buffer pad 9 is used to flexibly support the end of the battery module 4. The buffer pad 9 can support the battery module 4, providing not only a certain degree of elastic support for the battery module 4, but also reserving a small gap for the installation of the battery module 4. This ensures that when the battery module 4 engages with the positioning post 35, the clamping platform 413 at the bottom of the gripper 412 can smoothly engage into the slot 36 at the top of the positioning post 35.

[0058] In this embodiment, the inner chamber 3 is formed by the cold-rolled support plate 34, the air inlet end plate 32, the air outlet end plate 33, and the wire groove 31. The battery module 4 is positioned and installed in the mounting cavity 38 in the inner chamber 3. An air inlet cavity 39 and an air outlet cavity 310 are formed between the housing 1 and the inner chamber 3. Outside air from the vehicle is introduced into the air inlet cavity 39 by the fan through the air inlet 11. The air inlet cavity 39 is then diverted to the mounting cavity 38 through the air guide 37 to cool the battery module 4. The air after heat exchange enters the air outlet cavity 310 through the air guide 37 and is then discharged to the vehicle's exhaust pipe through the lower exhaust port 12, which accelerates the cooling speed of the module body 41 and effectively improves the heat dissipation quality of the battery module 4.

[0059] Example 3

[0060] Please see Figure 2-3 11-14, based on Example 2, the difference is as follows:

[0061] The system also includes several lateral airflow guide assemblies 5 arranged side-by-side within the mounting cavity 38. The battery module 4 is located between adjacent lateral airflow guide assemblies 5. Each lateral airflow guide assembly 5 includes an airflow chamber 51 connected to a support plate 34 at both ends. Specifically, the sidewall of the module body 41 contacts the sidewall of the airflow chamber 51. A lower support plate 53 is provided below the airflow chamber 51. Specifically, the bottom surface of the lower support plate 53 contacts the inner bottom surface of the housing 1. The top surface of the lower support plate 53 has fins 54 arranged side-by-side that extend into the inner cavity of the airflow chamber 51. Specifically, a gap is reserved between the top of the fins 54 and the inner top surface of the airflow chamber 51 to form a channel for collecting air. The parallel lateral airflow guide assemblies 5 can form an installation space for the battery module 4. The airflow chamber 51 then contacts the sidewall of the module body 41. Through the cooperation of the airflow chamber 51 and the fins 54, the heat of the module body 41 is conducted and absorbed, accelerating the heat dissipation of the module body 41.

[0062] Specifically, the side wall of the air guide chamber 51 is provided with a process groove 55 located between the fins 54. Specifically, the process groove 55 forms a cavity with the side wall of the module body 41, which is more conducive to heat dissipation of the module body 41 through the cavity formed by the process groove 55.

[0063] The top surface of the inner cover 2 is provided with an upper exhaust duct 6 for ventilation. Specifically, the end of the upper exhaust duct 6 facing away from the air inlet 11 extends out of the cover 2 and corresponds to the lower exhaust outlet 12. The battery module 4 also includes heat dissipation conduits 416 disposed on the top surface of the module body 41. Specifically, the top surface of the module body 41 is provided with two heat dissipation conduits 416. The ends of the two heat dissipation conduits 416 facing away from the upper exhaust duct 6 are bent and respectively cooperate with the air guide chambers 51 on both sides of the battery module 4. One end of the heat dissipation conduit 416 is detachably connected to the air guide chamber 51. Specifically, the bottom surface of the end of the heat dissipation conduit 416 facing away from the upper exhaust duct 6 is provided with a downwardly protruding inlet end. The top surface of the air guide chamber 51 is provided with... An air outlet 52 is provided to mate with the inlet end of the heat dissipation duct 416. The other end of the heat dissipation duct 416 is detachably connected to the upper exhaust duct 6. Specifically, the top surface of the heat dissipation duct 416 near the upper exhaust duct 6 has an upwardly protruding outlet end. The bottom surface of the upper exhaust duct 6 has a port that mates with the outlet end of the heat dissipation duct 416. The heat dissipation duct 416 connects the air guide chamber 51 and the upper exhaust duct 6. Air enters the mounting cavity 38 through the air guide port 37. A portion of the air enters the air guide chamber 51 through the channel between the fins 54 and enters the heat dissipation duct 416 through the air outlet 52. The top surface of the module body 41 is cooled by the heat dissipation duct 416 and the circulating air.

[0064] The system also includes a heat sink 7 located below the battery module 4. The two ends of the heat sink 7 are detachably connected to the positioning posts 35. Specifically, the heat sink 7 contacts the bottom surface of the module body 41, and the two ends of the heat sink 7 are provided with through holes that are axially aligned with the holes of the positioning posts 35. The heat sink 7 is provided with parallel diamond-shaped grids, which can conduct the heat radiated from the bottom surface of the module body 41 through the heat sink 7 located below the battery module 4, and then cool the bottom surface of the module body 41 through the air flowing through the bottom of the mounting cavity 38.

[0065] In this embodiment, the side-mounted air guide components 5 are arranged in parallel to form the installation space of the battery module 4. The cold air entering the installation cavity 38 through the air guide 37 first cools the heat sink 7. Some of the cold air enters the air guide chamber 51 through the channel between the fins 54 and enters the heat dissipation duct 416 through the air outlet 52. The top surface of the module body 41 is cooled by the heat dissipation duct 416 and the circulating air. The air after heat exchange in the heat dissipation duct 416 is discharged through the upper exhaust pipe 6. Thus, the module body 41 is cooled and dissipated in all directions by the heat sink 7, the side-mounted air guide components 5, and the heat dissipation duct 416.

[0066] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. 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 its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0067] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery box for easy installation and removal of battery modules, comprising a box body (1) and a box cover (2) for enclosing the box body (1), characterized in that: It also includes several battery modules (4) arranged side by side in the housing (1); The housing (1) is provided with positioning posts (35) that are detachably connected to both ends of the battery module (4); The battery module (4) includes a module body (41) and handles (44) disposed at both ends of the module body (41). The two ends of the module body (41) are provided with grip positions (42) for accommodating the handles (44). The grip positions (42) are provided with mounting holes (43) corresponding to the positioning posts (35). The top and bottom ends of the mounting holes (43) are respectively provided with a top plate (45) and a bottom plate (46) connected to the module body (41). The top plate (45) and the bottom plate (46) extend into the mounting holes along with the handles (44) and the positioning posts (35), respectively. One end of (43) is slidably connected, and a drive seat (47) is vertically slidably installed in the mounting hole (43). The top end of the drive seat (47) is connected to one end of the handle (44) that extends into the mounting hole (43). An elastic element (410) sleeved on the outside of the bottom end of the handle (44) is provided between the top plate (45) and the drive seat (47). A gripper (412) is horizontally slidably connected to the bottom end of the mounting hole (43). The bottom end of the drive seat (47) is connected to and drives the gripper (412) to slide horizontally and lock and unlock the positioning post (35).

2. The battery box for easy installation and removal of battery modules according to claim 1, characterized in that: The top of the positioning post (35) is provided with an annular groove (36), and a plurality of grippers (412) are provided. The bottom of each of the grippers (412) is provided with a clamping platform (413) that cooperates with the groove (36).

3. The battery box for easy installation and removal of battery modules according to claim 2, characterized in that: The top of the drive seat (47) is a limiting platform (48) for sliding connection mounting hole (43). The bottom of the drive seat (47) is provided with a support (49). The end of the support (49) away from the drive seat (47) is provided with a pin. The top of the gripper (412) is provided with an inclined guide groove (414). The guide groove (414) and the pin at the end of the support (49) are engaged.

4. The battery box for easy installation and removal of battery modules according to claim 1, characterized in that: It also includes an inner compartment (3) set inside the housing (1). The inner compartment (3) includes an air inlet end plate (32) and an air outlet end plate (33) respectively set at both ends of the inner cavity of the housing (1). A plurality of pairs of support plates (34) set inside the housing (1) are connected between the air inlet end plate (32) and the air outlet end plate (33). The two pairs of support plates (34) are symmetrically arranged. The air inlet end plate (32), the air outlet end plate (33) and the two pairs of support plates (34) form an installation cavity (38) for placing the battery module (4). The support plate (34) is a cold-rolled steel plate with at least one stepped structure. One of the stepped top surfaces of the support plate (34) is used to install a positioning post (35) and corresponds to the bottom surface of the battery module (4).

5. A battery box for easy installation and removal of battery modules according to claim 4, characterized in that: The bottom of the support plate (34) is provided with an air guide (37). The bent parts of the support plate (34) at both ends of the battery module (4) are respectively formed with an air inlet (39) and an air outlet (310) on both sides of the mounting cavity (38). The air inlet (39) and the air outlet (310) are connected to the mounting cavity (38) through the air guide (37). The two ends of the housing (1) are respectively provided with an air inlet (11) and a lower air outlet (12). The air inlet (11) and the lower air outlet (12) are respectively connected to the air inlet (39) and the air outlet (310).

6. The battery box for easy installation and removal of battery modules according to claim 5, characterized in that: The inner compartment (3) also includes a wire trough (31) set in the box body (1). The two ends of the wire trough (31) are connected to the air inlet end plate (32) and the air outlet end plate (33) respectively, and the two sides of the wire trough (31) are connected to the support plate (34).

7. A battery box for easy installation and removal of battery modules according to claim 5, characterized in that: It also includes several side air guide assemblies (5) arranged side by side in the mounting cavity (38). The battery module (4) is located between adjacent side air guide assemblies (5). The side air guide assembly (5) includes air guide chambers (51) connected to the support plate (34) at both ends. A lower support plate (53) is provided below the air guide chamber (51). The top surface of the lower support plate (53) has fins (54) that extend into the cavity of the air guide chamber (51) arranged side by side.

8. A battery box for easy installation and removal of battery modules according to claim 7, characterized in that: The top surface of the cover (2) is provided with an upper exhaust pipe (6) for ventilation. The battery module (4) also includes a heat dissipation pipe (416) disposed on the top surface of the module body (41). One end of the heat dissipation pipe (416) is detachably connected to the air guide chamber (51), and the other end of the heat dissipation pipe (416) is detachably connected to the upper exhaust pipe (6).

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