A battery module protection structure and use method thereof

Abstract

The present invention relates to the field of battery module protection technology, and in particular to a battery module protection structure and a method of using the same. The protection structure includes an upper shell, a base and an internal fixed component, the internal fixed component includes a grid plate, a cooling plate, a connecting rod and a return resistance member, the grid plate is arranged at the bottom of the storage chamber, the cooling plate is arranged above the grid plate and connected to an external coolant circuit, one end of the connecting rod is connected to the cooling plate, and the other end of the connecting rod is detachably connected to the upper shell, the return resistance member includes a bottom rod connected to the bottom of the storage chamber, a return rod rotatably connected to the bottom rod, a first spring and a resistance gear connecting the return rod and the bottom rod, every two return rods clamp the connecting rod in the middle, the resistance gear is arranged between the two return rods and meshes with the connecting rod, and the resistance gear slows down the swinging speed of the connecting rod when it swings. The internal fixed component is provided so that the battery module can be fixedly connected to the upper shell after installation, which is convenient for subsequent maintenance and disassembly.

Description

Technical Field

[0001] The present invention relates to the technical field of battery module protection, and in particular to a battery module protection structure and a use method thereof. Background Art

[0002] After assembly, existing battery modules are usually packaged and protected in a single-layer heat-insulating shell. At the same time, a liquid cooling plate is set around the battery module to circulate the coolant to achieve internal heat dissipation of the battery module. However, this is prone to coolant leakage or collision between battery modules due to vehicle bumps or sudden braking, so a battery module protection structure is needed. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a battery module protection structure and a method of using the same, which has the advantages of convenient maintenance, good shockproof effect and good heat dissipation effect.

[0004] In the first aspect, the present invention provides a battery module protection structure for fixing the battery module. The protection structure includes an upper shell, a base and an internal fixing component. The upper shell cover is arranged above the base. A partition is arranged inside the base. The partition divides the inside of the base into at least four storage chambers. A plurality of the internal fixing components are arranged one by one in the storage chamber. The internal fixing component includes an isolation grid plate, a cooling plate, a connecting rod and a return resistance member. The isolation grid plate is arranged at the bottom of the storage chamber. The cooling plate is arranged above the isolation grid plate and connected to an external coolant circuit. The connecting rod is L-shaped. Four of the connecting rods are evenly arranged on the left and right sides of the cooling plate and one end is connected to the cooling plate. The cooling plate is used to connect The battery module is connected, and the other end of the connecting rod is detachably connected to the upper shell body; two return resistance members are respectively arranged on the left and right sides of the isolation grid plate, and the return resistance member includes a bottom rod, a return rod, a first spring and a resistance gear. The bottom rod is connected to the bottom of the storage cavity, and the return rod is rotatably connected to the bottom rod. The first spring connects the return rod and the bottom rod so that the return rod remains vertical after the external force is lost. Every two return rods clamp the connecting rod in the middle, and the resistance gear is arranged between the two return rods and meshes with the connecting rod. The resistance gear slows down the swinging speed of the connecting rod when it swings.

[0005] Furthermore, the upper shell is provided with a gravity plate at a corresponding position of the storage cavity, and the gravity plate is embedded in the top of the upper shell. The internal fixing assembly also includes a universal plate, and a plurality of universal balls are provided at the bottom of the universal plate. When the connecting rod is connected to the upper shell, the gravity plate presses down the universal plate so that the universal ball contacts the top of the battery module.

[0006] Furthermore, the protective structure also includes an air intake assembly, the side wall of the upper shell is provided with a one-way air outlet, and multiple air intake assemblies are arranged one by one in the storage cavity. The air intake assembly includes an air intake pipe, a first air outlet and a second air outlet. The air intake pipe is arranged on one side of the storage cavity and is connected to an external air cooling system. The first air outlet is arranged on the side wall of the air intake pipe and blows air toward the side wall of the isolation grid plate, and the second air outlet is arranged at the top of the air intake pipe and blows air into the upper shell.

[0007] Furthermore, the air intake assembly also includes a resistance nozzle, which includes a limiting cylinder, a movable block and a turntable. The bottom of the limiting cylinder is connected to the second air outlet, the side wall of the limiting cylinder is provided with an opening, the movable block is arranged in the limiting cylinder, and the turntable is rotatably arranged at the top of the limiting cylinder. The movable block moves upward under the action of wind force until it reaches the turntable and then starts to rotate so that the wind flows out from the opening.

[0008] Furthermore, a plurality of guide plates are arranged around the bottom of the movable block.

[0009] Furthermore, the turntable is in the shape of a frustum.

[0010] Furthermore, the isolation grid plate is provided with ventilation holes, and fan blades are rotatably provided on the ventilation holes.

[0011] In a second aspect, the present invention provides a method for using a battery module protection structure, using the protection structure as described above, and the specific steps are as follows:

[0012] S1: Fix the base at the target location and connect the external coolant circuit and air cooling system.

[0013] S2: Place the cooling plate connected with the connecting rod on top of the isolation grid plate, and make the bottom of the connecting rod mesh with the resistance gear. Then, after the battery module is fixedly connected to the cooling plate, the upper shell cover is placed on the base.

[0014] S3: Connect the connecting rod and the upper shell. At this time, the cooling plate leaves the isolation grid plate under the action of the connecting rod, and then the upper shell and the base are fixedly connected.

[0015] S4: The air cooling system is started according to the temperature inside the protective structure. The air first fills the space below the cooling plate under the action of the resistance nozzle, and then enters the upper shell from the second air outlet.

[0016] By adopting the above technical solution, the beneficial effects of the present invention are:

[0017] The present invention provides a separate upper shell and base to facilitate positioning and fixing of the protective structure; an internal fixing component is provided so that the battery module can be fixedly connected to the upper shell after installation, which is convenient for subsequent maintenance and disassembly; a rotatably connected connecting rod is provided to fix the cooling plate, and the battery module is lifted while ensuring the heat dissipation effect of the battery module, and the swing of the connecting rod is restricted by the return resistance member, so that the battery module can be reset after the buffered inertial operation according to the operation of the vehicle; to prevent the battery module from being damaged or leaking due to sudden braking or bumps, the connecting rod is meshed with the resistance gear to reduce the inertial swing amplitude of the connecting rod.

[0018] The present invention realizes movable fixation of the battery module by arranging a gravity plate, and ensures slight swing of the battery module by arranging a universal plate; increases the heat dissipation effect inside the protective structure by arranging an air intake assembly, sets the position of the air outlet on the air intake pipe according to the internal position, and realizes graded heat dissipation in conjunction with the resistance nozzle, thereby achieving better heat dissipation effect.

[0019] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

[0020] Undoubtedly, these and other objects of the present invention will become more apparent after the following detailed description of the preferred embodiment described with reference to various figures and drawings.

[0021] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, one or several preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation of the present invention.

[0023] In the drawings, the same reference numerals are used for the same components and the drawings are schematic and not necessarily drawn to scale.

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only one or several embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on such drawings without paying creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of a battery module protection structure of the present invention;

[0026] Figure 2A schematic diagram of the internal structure of a battery module protection structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of an internal fixing component of a battery module protection structure of the present invention;

[0028] Figure 4 This is an expanded view of the internal fixing component structure of a battery module protection structure of the present invention;

[0029] Figure 5 A bottom diagram of a universal plate of a battery module protection structure of the present invention;

[0030] Figure 6 A partial structural side view of a battery module protection structure of the present invention;

[0031] Figure 7 This is a schematic diagram of a base structure of a battery module protection structure of the present invention;

[0032] Figure 8 A schematic diagram of the internal structure of a resistance nozzle of a battery module protection structure of the present invention;

[0033] Fig. 9 A side view of the internal structure of a resistance nozzle of a battery module protection structure of the present invention.

[0034] Description of main reference numerals:

[0035] 1- upper shell;

[0036] 11- gravity plate; 12- one-way air outlet;

[0037] 2- Base;

[0038] 21- separator;

[0039] 3-Internal fixation components;

[0040] 31-isolation grid plate; 311-fan blade; 32-cooling plate; 33-connecting rod; 34-return resistance member; 341-bottom rod; 342-return rod; 343-first spring; 344-resistance gear; 35-universal plate; 351-universal ball;

[0041] 4-Intake assembly;

[0042] 41 - air inlet pipe; 42 - first air outlet; 43 - second air outlet; 44 - resistance nozzle; 441 - limiting cylinder; 4411 - opening; 442 - movable block; 4421 - guide plate; 443 - turntable. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0044] First, refer to Figure 1-9 The present invention provides a technical solution: a battery module protection structure for fixing the battery module.

[0045] The protective structure includes an upper shell 1, a base 2, an inner fixing component 3 and an air intake component 4.

[0046] The upper shell 1 is covered on the top of the base 2, and an extension part for connection is provided at its edge. The upper shell 1 is provided with a gravity plate 11 at the corresponding position of the storage cavity, and the gravity plate 11 is embedded in the top of the upper shell 1. The gravity plate 11 has a certain gravity, and a sealing ring for sealing can be provided at its edge.

[0047] A partition 21 is disposed inside the base 2 , and the partition 21 divides the inside of the base 2 into at least four storage chambers, and a plurality of internal fixing components 3 are disposed in the storage chambers one by one.

[0048] The internal fixing assembly 3 includes a grid plate 31, a cooling plate 32, a connecting rod 33, a return resistance member 34 and a universal plate 35. The grid plate 31 is arranged at the bottom of the storage cavity. The grid plate 31 is preferably a tic-tac-toe grid. The grid plate raises the position of the battery module to reserve a channel for the leakage of the coolant. In order to increase the ventilation effect between the grid plates 31, a ventilation hole is provided on the grid plate 31, and a fan blade 311 is rotatably provided on the ventilation hole. The cooling plate 32 is arranged above the grid plate 31 and connected to the external coolant circuit. The connecting rod 33 is L-shaped, and four connecting rods 33 are evenly arranged on the left and right sides of the cooling plate 32 and one end is connected to the cooling plate 32. The cooling plate 32 is used to connect the battery module, and the connection method includes but is not limited to any one of adhesion and welding. The other end of the connecting rod 33 is rotatably provided with a connecting seat, and the connecting seat is detachably connected to the upper shell 1, and the connection method includes but is not limited to screw connection. Two return resistance members 34 are respectively arranged on the left and right sides of the isolation grid plate 31, and the return resistance member 34 includes a bottom rod 341, a return rod 342, a first spring 343 and a resistance gear 344. The bottom rod 341 is connected to the bottom of the storage chamber, the return rod 342 is rotatably connected to the bottom rod 341, the first spring 343 connects the return rod 342 and the bottom rod 341 so that the return rod 342 remains vertical after the external force is lost, and every two return rods 342 clamp the connecting rod 33 in the middle, and the resistance gear 344 is arranged between the two return rods 342 and meshes with the connecting rod 33. The resistance gear 344 slows down the swinging speed of the connecting rod 33 when it swings. A plurality of universal balls 351 are arranged at the bottom of the universal plate 35. When the connecting rod 33 is connected to the upper shell 1, the gravity plate 11 presses down the universal plate 35 so that the universal balls 351 contact the top of the battery module.

[0049] In order to balance the internal pressure of the protective structure, a one-way air outlet 12 is provided on the side wall of the upper shell 1. Multiple air intake components 4 are arranged in the storage cavity one by one. The air intake component 4 includes an air intake pipe 41, a first air outlet 42 and a second air outlet 43. The air intake pipe 41 is arranged on one side of the storage cavity and connected to an external air cooling system, the first air outlet 42 is arranged on the side wall of the air intake pipe 41 and blows air to the side wall of the isolation grid plate 31, and the second air outlet 43 is arranged on the top of the air intake pipe 41 and blows air into the upper shell 1.

[0050] Because the air pressure between the cooling plate 32 and the placement cavity is greater than the air pressure inside the cooling plate 32 and the upper shell 1, in order to ensure that the wind that plays a cooling role can first fill the gap below, the air intake assembly 4 also includes a resistance nozzle 44, and the resistance nozzle 44 includes a limiting cylinder 441, a movable block 442 and a turntable 443. The bottom of the limiting cylinder 441 is connected to the second air outlet 43, and the side wall of the limiting cylinder 441 is provided with an opening 4411. The movable block 442 is arranged in the limiting cylinder 441 and a plurality of guide plates 4421 are arranged around the bottom thereof. The turntable 443 is rotatably arranged at the top of the limiting cylinder 441, and the turntable 443 is truncated. Under the action of wind force, the movable block 442 moves upward until it reaches the turntable 443 and then begins to rotate so that the wind flows out from the opening 4411.

[0051] In a second aspect, the present invention provides a method for using a battery module protection structure, using the protection structure as described above, and the specific steps are as follows:

[0052] S1: Fix the base 2 at the target position and connect the external coolant circuit and air cooling system.

[0053] S2: Place the cooling plate 32 connected with the connecting rod 33 above the isolation grid plate 31, and make the bottom of the connecting rod 33 engage with the resistance gear 344, and then use screws to fix the battery module and the cooling plate 32, and then cover the upper shell 1 on the base 2.

[0054] S3: Connect the connecting rod 33 and the upper shell 1. At this time, the cooling plate 32 leaves the isolation grid plate 31 under the action of the connecting rod 33, and then fixes the upper shell 1 and the base 2.

[0055] S4: The air cooling system is started according to the temperature inside the protective structure. Under the action of the resistance nozzle 44, the wind first fills the space below the cooling plate 32, and then enters the upper shell 1 from the second air outlet 43.

[0056] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0057] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0058] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A battery module protection structure for fixing a battery module, characterized in that: The invention comprises an upper shell, a base and an inner fixing assembly, wherein the upper shell cover is arranged above the base, a partition is arranged inside the base, and the partition divides the inside of the base into at least four storage chambers, and a plurality of the inner fixing assemblies are arranged one by one in the storage chamber; the inner fixing assembly comprises an isolation grid plate, a cooling plate, a connecting rod and a return resistance member, the isolation grid plate is arranged at the bottom of the storage chamber, the cooling plate is arranged above the isolation grid plate and connected to an external cooling liquid circuit, the connecting rod is L-shaped, and the four connecting rods are evenly arranged on the left and right sides of the cooling plate and one end is connected to the cooling plate, and the cooling plate is used to connect the electric The pool module, the other end of the connecting rod is detachably connected to the upper shell body; two return resistance members are respectively arranged on the left and right sides of the isolation grid plate, the return resistance member includes a bottom rod, a return rod, a first spring and a resistance gear, the bottom rod is connected to the bottom of the storage chamber, the return rod is rotatably connected to the bottom rod, the first spring connects the return rod and the bottom rod so that the return rod remains vertical after the external force is lost, and every two return rods clamp the connecting rod in the middle, the resistance gear is arranged between the two return rods and meshes with the connecting rod, and the resistance gear slows down the swinging speed of the connecting rod when it swings; The upper shell is provided with a gravity plate at a corresponding position of the storage cavity, and the gravity plate is embedded in the top of the upper shell. The inner fixing assembly also includes a universal plate, and a plurality of universal balls are provided at the bottom of the universal plate. When the connecting rod is connected to the upper shell, the gravity plate presses down the universal plate so that the universal ball contacts the top of the battery module. It also includes an air intake assembly, the side wall of the upper shell is provided with a one-way air outlet, a plurality of the air intake assemblies are arranged one by one in the storage cavity, the air intake assembly includes an air intake pipe, a first air outlet and a second air outlet, the air intake pipe is arranged at one side of the storage cavity and connected to an external air cooling system, the first air outlet is arranged at the side wall of the air intake pipe and blows air toward the side wall of the isolation grid plate, and the second air outlet is arranged at the top of the air intake pipe and blows air into the upper shell; The air intake assembly also includes a resistance nozzle, which includes a limiting cylinder, a movable block and a turntable. The bottom of the limiting cylinder is connected to the second air outlet, and the side wall of the limiting cylinder is provided with an opening. The movable block is arranged in the limiting cylinder, and the turntable is rotatably arranged on the top of the limiting cylinder. The movable block moves up under the action of wind until it reaches the turntable and then starts to rotate so that the wind flows out from the opening.

2. The battery module protection structure according to claim 1, characterized in that: The bottom ring of the movable block is provided with a plurality of guide plates.

3. The battery module protection structure according to claim 1, characterized in that: The turntable is in the shape of a truncated cone.

4. The battery module protection structure according to claim 1, characterized in that: The isolation grid plate is provided with a ventilation hole, and a fan blade is rotatably provided on the ventilation hole.

5. A method for using a battery module protection structure, characterized in that: The protective structure as claimed in claim 1 is applied, and the specific steps are as follows: S1: fix the base at the target position and connect the external coolant circuit and air cooling system; S2: placing the cooling plate connected with the connecting rod on the top of the isolation grid plate, and making the bottom of the connecting rod mesh with the resistance gear, and then fixing the battery module and the cooling plate, and then making the upper shell cover on the base; S3: connecting the connecting rod and the upper shell, at which time the cooling plate leaves the isolation grid plate under the action of the connecting rod, and then the upper shell and the base are fixedly connected; S4: The air cooling system is started according to the temperature inside the protective structure. The air first fills the space below the cooling plate under the action of the resistance nozzle, and then enters the upper shell from the second air outlet.

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