New energy automobile battery pack protection structure

Abstract

The utility model discloses a new energy automobile battery pack protection structure which relates to the technical field of new energy automobile batteries and comprises a protection shell assembly, a ventilation opening is formed in the left side of the protection shell assembly in a penetrating mode, and electric opening and closing dry powder boxes are fixedly arranged on the front side and the rear side of an inner cavity of the protection shell assembly. And a flue gas sensor is fixedly arranged on the surface of the electric opening and closing dry powder box. According to the new energy automobile battery pack protection structure, smoke is detected through a smoke sensor, an electric signal is fed back to an electric opening and closing dry powder box, the electric opening and closing dry powder box pours dry powder out, the electric opening and closing dry powder box feeds back the electric signal to an electric motor, and the electric motor is started to drive a first rotating rod to rotate; the fan assemblies rotate synchronously, dry powder in the protective shell assembly is diffused, oxygen near the battery is isolated through the dry powder, the battery cannot be spontaneously combusted, and potential safety hazards caused by spontaneous combustion of an automobile are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy vehicle batteries, in particular to a new energy vehicle battery pack protection structure. Background Art

[0002] Electric vehicle batteries are divided into two categories, storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries. New energy vehicle batteries are generally located in the chassis of the car and require the use of a battery pack protection structure for protection.

[0003] The patent with announcement number CN208806286U discloses a new energy vehicle battery pack structure, including: bolts, through holes, a bottom plate, batteries, a facing plate, a first heat dissipation hole, a partition, a slider, a slide groove, a face frame, a front baffle, a circuit control box, a fixed plate, a rear baffle, and a second heat dissipation hole; through holes are opened on the left and right sides of the bottom plate, and the through holes and the bottom plate are an integrated structure; through holes are opened on the left and right ends of the face frame, and the through holes and the face frame are an integrated structure; batteries are arranged in the bottom plate, and the batteries are fixed in the bottom plate by the partition with bolts through the through holes; a face frame is arranged on the top of the battery, and the batteries are fixed in the face frame by the partition with bolts through the through holes; the utility model improves the structure of a new energy vehicle battery pack, has the advantages of easy disassembly and installation of the device for batteries, and convenient replacement of single-cell faulty batteries, thereby effectively solving the problems and shortcomings of the utility model in the background technology.

[0004] However, due to the above-mentioned battery pack protection structure, in hot summer weather, the car battery is prone to spontaneous combustion, causing the car to spontaneously combust, posing a major safety hazard. The battery pack protection structure cannot deal with the battery spontaneous combustion. In this regard, we propose a new energy vehicle battery pack protection structure to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a new energy vehicle battery pack protection structure, which solves the problem that in the hot summer weather, the car batteries are prone to spontaneous combustion, causing the car to spontaneously combust, posing a major safety hazard, and the battery pack protection structure cannot deal with the problem of battery spontaneous combustion.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a new energy vehicle battery pack protection structure, including a protective shell assembly, a ventilation hole is opened through the left side of the protective shell assembly, electric opening and closing dry powder boxes are fixedly provided on the front and rear sides of the inner cavity of the protective shell assembly, a smoke sensor is fixedly provided on the surface of the electric opening and closing dry powder box, and a fixed box is fixedly connected to the left and right sides of the protective shell assembly. The inner cavity of the fixed box is movably connected to a first rotating rod through a bearing, and a first bevel gear is fixedly sleeved on the surface of the first rotating rod. The bottom of the inner cavity of the fixed box is fixedly connected to a support plate, and the inner cavity of the support plate is movably connected to a second rotating rod through a bearing, a fan assembly is fixedly provided at one end of the inner side of the second rotating rod, and a second bevel gear is fixedly connected to one end of the outer side of the second rotating rod, and the surface of the first bevel gear is meshed with the surface of the second bevel gear.

[0007] Preferably, an electric motor is fixedly provided on the back surface of the right fixing box, and an output end of the electric motor is fixedly connected to the back surface of the first rotating rod on the right side.

[0008] Preferably, there are several fan assemblies, which are distributed in a linear array, and the fan assemblies are made of plastic.

[0009] Preferably, a protective box is fixedly provided on the back surface of the electric motor.

[0010] Preferably, a synchronous wheel is fixedly connected to the front surface of the second rotating rod, and a synchronous belt is movably sleeved on the surface of the synchronous wheel.

[0011] Preferably, the protective shell assembly includes a thermal conductive paste, a carbon fiber plate is fixedly provided at the bottom of the thermal conductive paste, and an aluminum plate is fixedly provided at the bottom of the carbon fiber plate.

[0012] Preferably, the receiving end of the smoke sensor is electrically connected to an external power supply, the output end of the external power supply is electrically connected to the receiving ends of the electric opening and closing dry powder box and the electric motor, the output end of the smoke sensor is electrically connected to the receiving end of the electric opening and closing dry powder box, and the output end of the electric opening and closing dry powder box is electrically connected to the receiving end of the electric motor.

[0013] Beneficial Effects

[0014] The utility model provides a new energy vehicle battery pack protection structure. Compared with the prior art, it has the following beneficial effects:

[0015] The new energy vehicle battery pack protection structure detects smoke through a smoke sensor and feeds back an electrical signal to an electric opening and closing dry powder box. The electric opening and closing dry powder box pours out the dry powder, and the electric opening and closing dry powder box feeds back an electrical signal to an electric motor. The electric motor is started by an external power supply, and the electric motor rotates forward, driving the first rotating rod to rotate, driving the synchronous wheel on the right to rotate, and through a set synchronous belt, the synchronous wheel on the left rotates synchronously, driving the first bevel gear to rotate, driving the second bevel gear to rotate, driving the second rotating rod to rotate, and making a plurality of fan assemblies rotate synchronously, so as to diffuse the dry powder in the protective shell assembly, so that the dry powder isolates the oxygen near the battery, so that the battery cannot spontaneously combust. When the smoke sensor detects the smoke, the vehicle is powered off, reducing the safety hazard caused by spontaneous combustion of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the main view of the overall structure of the utility model;

[0017] Figure 2 This is the front view of the dry powder diffusion component structure of the utility model;

[0018] Figure 3 This is the front view of the transmission assembly structure of the utility model;

[0019] Figure 4 This is a cross-sectional view of the protective shell assembly structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the utility model system.

[0021] In the figure: 1. fixing box; 2. protective shell assembly; 3. synchronous wheel; 4. synchronous belt; 5. electric opening and closing dry powder box; 6. smoke sensor; 7. vent; 8. protective box; 9. first rotating rod; 10. electric motor; 11. fan assembly; 12. support plate; 13. first bevel gear; 14. second bevel gear; 15. second rotating rod; 16. external power supply; 201. aluminum plate; 202. carbon fiber plate; 203. thermal conductive paste. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 5 The utility model provides a technical solution, which specifically includes the following embodiments:

[0024] Embodiment 1:

[0025] A new energy vehicle battery pack protection structure comprises a protective shell component 2, a vent 7 is provided through the left side of the protective shell component 2, an electric opening and closing dry powder box 5 is fixedly provided on both the front and rear sides of the inner cavity of the protective shell component 2, a smoke sensor 6 is fixedly provided on the surface of the electric opening and closing dry powder box 5, a fixing box 1 is fixedly connected to the left and right sides of the protective shell component 2, a first rotating rod 9 is movably connected to the inner cavity of the fixing box 1 through a bearing, a first bevel gear 13 is fixedly sleeved on the surface of the first rotating rod 9, a support plate 12 is fixedly connected to the bottom of the inner cavity of the fixing box 1, a second rotating rod 15 is movably connected to the inner cavity of the support plate 12 through a bearing, a fan component 11 is fixedly provided on one end of the inner side of the second rotating rod 15, a second bevel gear 14 is fixedly provided on one end of the outer side of the second rotating rod 15, and the surface of the first bevel gear 13 is meshed with the surface of the second bevel gear 14;

[0026] The smoke is detected by the smoke sensor 6, and the electrical signal is fed back to the electric opening and closing dry powder box 5. The electric opening and closing dry powder box 5 pours out the dry powder. The electric opening and closing dry powder box 5 then feeds back the electrical signal to the electric motor 10, and the electric motor 10 is started by the external power supply 16. The electric motor 10 rotates forward, driving the first rotating rod 9 to rotate, driving the synchronous wheel 3 on the right to rotate, and through the set synchronous belt 4, the synchronous wheel 3 on the left rotates synchronously, driving the first bevel gear 13 to rotate, and the second bevel gear 14 to rotate, and the second rotating rod 15 to rotate, so that several groups of fan assemblies 11 rotate synchronously, and the dry powder in the protective shell assembly 2 is diffused, so that the dry powder isolates the oxygen near the battery, so that the battery cannot spontaneously combust. When the smoke sensor 6 detects the smoke, the car is powered off to reduce the safety hazard caused by spontaneous combustion of the car.

[0027] An electric motor 10 is fixedly provided on the back surface of the fixing box 1 on the right side, and an output end of the electric motor 10 is fixedly connected to the back surface of the first rotating rod 9 on the right side;

[0028] By providing the electric motor 10, the device is provided with a power source, which facilitates the diffusion of dry powder and isolates the oxygen near the battery assembly.

[0029] The number of the fan assemblies 11 is several, and the several fan assemblies 11 are distributed in a linear array, and the material of the fan assemblies 11 is plastic;

[0030] By setting the fan assembly 11 to be made of plastic, the weight of the device is reduced, making the device easier to use.

[0031] A protective box 8 is fixedly provided on the back surface of the electric motor 10;

[0032] The protective box 8 is provided to protect the electric motor 10 , so as to facilitate the use of the electric motor 10 .

[0033] The front surface of the second rotating rod 15 is fixedly connected with a synchronous wheel 3, and the surface of the synchronous wheel 3 is movably sleeved with a synchronous belt 4;

[0034] The synchronous wheel 3 on the right side is rotated, and the synchronous belt 4 is provided to make the synchronous wheel 3 on the left side rotate synchronously.

[0035] The protective shell assembly 2 includes a heat conductive paste 203, a carbon fiber plate 202 is fixedly provided at the bottom of the heat conductive paste 203, and an aluminum plate 201 is fixedly provided at the bottom of the carbon fiber plate 202;

[0036] The carbon fiber plate 202 and the aluminum plate 201 are provided to facilitate protection of the battery assembly and reduce the weight of the device.

[0037] The receiving end of the smoke sensor 6 is electrically connected to the external power supply 16, the output end of the external power supply 16 is electrically connected to the receiving ends of the electric opening and closing dry powder box 5 and the electric motor 10, the output end of the smoke sensor 6 is electrically connected to the receiving end of the electric opening and closing dry powder box 5, and the output end of the electric opening and closing dry powder box 5 is electrically connected to the receiving end of the electric motor 10;

[0038] When the smoke sensor 6 detects smoke, it feeds back an electrical signal to the electric opening and closing dry powder box 5, which pours out the dry powder. The electric opening and closing dry powder box 5 then feeds back an electrical signal to the electric motor 10, which starts the electric motor 10 through the external power supply 16.

[0039] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0040] During operation, when the battery spontaneously combusts, smoke will be generated. When the smoke sensor 6 detects smoke, an electrical signal is fed back to the electric opening and closing dry powder box 5, and the electric opening and closing dry powder box 5 pours out the dry powder. The electric opening and closing dry powder box 5 then feeds back an electrical signal to the electric motor 10, and the electric motor 10 is started by the external power supply 16. The electric motor 10 rotates forward, driving the first rotating rod 9 to rotate, and driving the synchronous wheel 3 on the right to rotate. Through the set synchronous belt 4, the synchronous wheel 3 on the left rotates synchronously, driving the first bevel gear 13 to rotate, and the second bevel gear 14 to rotate, and driving the second rotating rod 15 to rotate, so that several groups of fan assemblies 11 rotate synchronously, and the dry powder in the protective shell assembly 2 is diffused, so that the dry powder isolates the oxygen near the battery, so that the battery cannot spontaneously combust. When the smoke sensor 6 detects the smoke, the car is powered off to reduce the safety hazard caused by spontaneous combustion of the car.

Claims

1. A new energy vehicle battery pack protection structure, comprising a protective shell component (2), characterized in that: The left side of the protective shell assembly (2) is provided with a ventilating opening (7), the front and rear sides of the inner cavity of the protective shell assembly (2) are fixedly provided with an electric opening and closing dry powder box (5), the surface of the electric opening and closing dry powder box (5) is fixedly provided with a smoke sensor (6), the left and right sides of the protective shell assembly (2) are fixedly connected with a fixing box (1), the inner cavity of the fixing box (1) is movably connected with a first rotating rod (9) through a bearing, the surface of the first rotating rod (9) is fixedly sleeved with a first bevel gear (13), the bottom of the inner cavity of the fixing box (1) is fixedly connected with a support plate (12), the inner cavity of the support plate (12) is movably connected with a second rotating rod (15) through a bearing, one end of the inner side of the second rotating rod (15) is fixedly provided with a fan assembly (11), one end of the outer side of the second rotating rod (15) is fixedly connected with a second bevel gear (14), and the surface of the first bevel gear (13) is meshed with the surface of the second bevel gear (14).

2. A new energy vehicle battery pack protection structure according to claim 1, characterized in that: An electric motor (10) is fixedly provided on the back surface of the right fixing box (1), and an output end of the electric motor (10) is fixedly connected to the back surface of the right first rotating rod (9).

3. The new energy vehicle battery pack protection structure according to claim 1, characterized in that: The number of the fan assemblies (11) is several, and the several fan assemblies (11) are distributed in a linear array. The material of the fan assemblies (11) is plastic.

4. A new energy vehicle battery pack protection structure according to claim 2, characterized in that: A protective box (8) is fixedly provided on the back surface of the electric motor (10).

5. The new energy vehicle battery pack protection structure according to claim 1, characterized in that: A synchronous wheel (3) is fixedly connected to the front surface of the second rotating rod (15), and a synchronous belt (4) is movably sleeved on the surface of the synchronous wheel (3).

6. A new energy vehicle battery pack protection structure according to claim 1, characterized in that: The protective shell assembly (2) comprises a thermal conductive paste (203), a carbon fiber plate (202) is fixedly provided at the bottom of the thermal conductive paste (203), and an aluminum plate (201) is fixedly provided at the bottom of the carbon fiber plate (202).

7. A new energy vehicle battery pack protection structure according to claim 1, characterized in that: The receiving end of the smoke sensor (6) is electrically connected to an external power supply (16), the output end of the external power supply (16) is electrically connected to the receiving ends of the electric opening and closing dry powder box (5) and the electric motor (10), the output end of the smoke sensor (6) is electrically connected to the receiving end of the electric opening and closing dry powder box (5), and the output end of the electric opening and closing dry powder box (5) is electrically connected to the receiving end of the electric motor (10).

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