A sand vehicle battery heat dissipation mounting box and a sand vehicle

Abstract

The application discloses a sand vehicle battery heat dissipation mounting box and a sand vehicle. The sand vehicle is provided with the battery heat dissipation mounting box, a power battery is arranged in the mounting box, a wheel hub motor is arranged on a rear wheel of the vehicle, the power battery is used for providing power support for the wheel hub motor, the wheel hub motor is introduced into a power system at a starting stage of the vehicle or when the vehicle accelerates to overtake, and is used for assisting the vehicle to start quickly or overtake quickly. The application provides the sand vehicle battery heat dissipation mounting box and the sand vehicle, which can automatically switch a heat dissipation mode according to the temperature of a battery body and the humidity of the surrounding, carry out air cooling or liquid cooling, and further reduce energy consumption for heat dissipation of the battery body. Meanwhile, when starting a liquid cooling operation, the battery body is automatically compressed to prevent the battery body from being deformed due to heat, and the battery box is closed to reduce the influence of the battery overheat on the surrounding things.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of sand buggies, in particular to a sand-buggy battery heat-dissipation mounting box and a sand buggy. BACKGROUND

[0002] The sand buggy is a vehicle used for driving on a beach, and the existing sand buggy is single-power driven, that is, traditionally fuel driven. In order to adapt to the development of new energy and the trend of energy saving and environmental protection, a hybrid sand buggy needs to be developed. However, the sand buggy is limited by the use environment and the body mechanism, so a sand buggy with a small battery is designed.

[0003] The battery is located in the sand buggy, and the heat dissipation of the battery is particularly important. When the battery overheats, natural and explosion situations are prone to occur. Therefore, the heat dissipation and protection of the battery are particularly important. The application designs a battery heat-dissipation mounting box according to the use environment of the sand buggy to protect the battery and the user. SUMMARY

[0004] The application provides a sand-buggy battery heat-dissipation mounting box and a sand buggy to solve the problems in the prior art.

[0005] To solve the above technical problems, the application provides the following technical scheme: a sand-buggy battery heat-dissipation mounting box, which comprises a base, a battery box for placing a battery is arranged on the base, a plurality of heat-dissipation grooves for ventilation are formed in the battery box, and a heat-dissipation block for plugging or opening the heat-dissipation grooves is arranged on the heat-dissipation grooves, a liquid cooling device is connected to the heat-dissipation block to cool the heat-dissipation block, a detection unit is further arranged on the base, the detection unit is used to detect the humidity around the battery box and the temperature of the battery body, and a conversion device is arranged on the battery box, when the detection unit detects that the humidity around the battery box is too large or the temperature of the battery body is too high, the conversion device controls the liquid cooling device to be started to dissipate heat of the battery box, and the heat-dissipation grooves are closed.

[0006] The battery mounting box can automatically switch air cooling or liquid cooling according to the temperature of the battery body or the humidity around the battery body to dissipate heat of the battery body. When the liquid cooling operation is started, the battery body is automatically pressed to prevent the battery body from being deformed due to heat, and the battery box is closed to reduce the influence of the battery overheating on the surrounding objects.

[0007] In the above scheme, preferably, a filter screen device for filtering sand and stones is further arranged on the base, the filter screen device comprises a filter screen and a plurality of rotating rollers for guiding the filter screen, the rotating rollers are rotatably arranged on the base, the filter screen is annularly arranged on the rotating rollers, and the filter screen surrounds the battery box to filter air flowing into the battery box.

[0008] Preferably, the filter screen is provided with a sponge layer on the inner wall, which is used to adsorb moisture on the flowing gas.

[0009] Preferably, the rotating motor is arranged on one of the rotating rollers to drive the filter screen to rotate, and the sponge layer is extruded when passing the rotating roller, thereby performing the dehydration operation.

[0010] Preferably, the rear end of the battery box is provided with an inclined air deflector between the base, and an air outlet is formed on the base, the air outlet is located between the battery box and the air deflector, and the air flowing into the battery box flows out from the air outlet.

[0011] Preferably, the air deflector is provided with an air permeable opening, the air permeable opening is aligned with the inner wall of the filter screen at the rear through the channel, and part of the air flowing into the battery box flows out from the air permeable opening and acts on the filter screen, thereby blowing the filter screen outward.

[0012] Preferably, the heat dissipation block is provided with a sliding groove, the heat dissipation groove is provided with a guide rod, the heat dissipation block is slidably arranged on the guide rod through the sliding groove, and the first elastic member is arranged between the guide rod and the heat dissipation block to elastically push the heat dissipation block away, so that the heat dissipation groove is unblocked.

[0013] Preferably, the heat dissipation block is provided with a contact plate, the contact plate and the heat dissipation block are connected by the annular folding cover to form a sealed cavity, the heat dissipation block is provided with an injection port and an outlet port communicated with the liquid cooling device, the liquid cooling device injects liquid into the sealed cavity, the annular folding cover expands, the contact plate presses on the battery body, and the heat dissipation block is pushed to slide out of the battery box, thereby blocking the heat dissipation groove.

[0014] Preferably, the outlet port is provided with a pressure valve, which is opened when the pressure in the liquid flow cavity reaches a set value, and the liquid cooling device circulates the cooling liquid.

[0015] Preferably, the sand beach vehicle is provided with a battery heat dissipation mounting box, a power battery is arranged in the mounting box, and a hub motor is arranged on the rear wheel of the vehicle, the power battery is used to provide power support for the hub motor, and the hub motor is used to assist the vehicle to travel.

[0016] The sand beach vehicle provided by the application can automatically switch the heat dissipation mode according to the temperature of the battery body and the humidity of the surrounding environment, perform air cooling or liquid cooling, thereby reducing the energy consumption for heat dissipation of the battery body, and automatically pressing the battery body when starting the liquid cooling operation to prevent the battery body from being deformed due to heat, and the battery box is closed to reduce the influence of the battery overheating on the surrounding objects. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The schematic view of the sand vehicle of the present application.

[0018] Figure 2 The sectional view of the sand vehicle of the present application.

[0019] Figure 3 The schematic view of the installation box of the present application.

[0020] Figure 4 The sectional view of the installation box of the present application.

[0021] Figure 5 The schematic view of the battery box of the present application.

[0022] Figure 6 The partial enlarged view of the filter screen device of the present application.

[0023] Figure 7 The schematic view of the cooperation of the heat dissipation groove and the heat dissipation block of the present application.

[0024] Figure 8 The schematic view of the embodiment 2 of the present application. DETAILED DESCRIPTION

[0025] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0026] Embodiment 1:

[0027] Reference Figures 1-7 A sand vehicle battery heat dissipation installation box and a sand vehicle, the sand vehicle is configured with a battery heat dissipation installation box, a power battery is configured in the installation box, and a hub motor is configured on the rear wheel of the vehicle, the power battery is used to provide power support for the hub motor, wherein the hub motor is involved into the power system at the starting stage of the vehicle or when the vehicle accelerates to overtake, so as to assist the vehicle to start quickly or to overtake quickly.

[0028] The heat dissipation installation box comprises a base 1, the base 1 is configured with a battery box 2 for placing a battery and a conversion device for converting a heat dissipation mode, the peripheral wall of the battery box 2 is uniformly provided with heat dissipation grooves 21 for ventilation and heat dissipation, so that the wind from outside blows into the battery box 2 to dissipate heat for the battery fixedly placed inside, and a guide rod 211 is configured on the heat dissipation groove 21, a heat dissipation block 22 is slidingly guided on the guide rod 211, a sliding groove 221 is formed on the heat dissipation block 22, the heat dissipation block 22 is slidingly guided on the guide rod 211 of the heat dissipation groove 21 through the sliding groove 221, the heat dissipation block 22 moves forward and backward to block or open the heat dissipation groove 21, a first elastic member is configured between the guide rod 211 and the heat dissipation block 22, and the first elastic member is used to move the heat dissipation block 22 into the battery box 2 to make the heat dissipation groove 21 in an open state.

[0029] The upper and lower ends of the inner wall of the heat dissipation block 22 are provided with top contact blocks 222, which make the inner wall of the heat dissipation block 22 into a C shape. The battery body of the vehicle is fixedly installed in the battery box 2, and gaps are left between the battery body and the four walls of the battery box 2 for air circulation and heat dissipation. The heat dissipation block 22 slides into the battery box 2 under the action of the first elastic member, and the top contact blocks 222 on the heat dissipation block 22 contact the end walls of the battery body, so that the middle region of the inner wall of the heat dissipation block 22 is not in contact with the battery body, and air can flow through the gap. The heat dissipation block 22 is made of a heat-conducting material, so that the heat on the battery body is absorbed by the top contact blocks 222. When air flows into the heat dissipation groove 21, it passes through the heat dissipation block 22 and is cooled by the heat dissipation block 22. At the same time, the air flows through the gap between the heat dissipation block 22 and the battery body to cool the battery body.

[0030] A contact plate 223 is arranged at the middle position of the inner wall of the heat dissipation block 22. One end of the contact plate 223 is connected to an annular folding cover, and the other end of the annular folding cover is tightly fitted on the middle position of the inner wall of the heat dissipation block 22. Thus, the annular folding cover, the inner wall of the heat dissipation block 22 and the contact plate 223 form a sealed chamber. The heat dissipation block 22 is connected to a liquid cooling device. An injection port and an outlet port are respectively arranged on the side walls of the top contact blocks 222, and the two ports are in communication with the sealed chamber. The injection port and the outlet port are respectively in communication with the circulating pipeline of the liquid cooling device. After the liquid cooling device is started, the cooling liquid is injected from the injection port into the sealed chamber and flows out from the outlet port to return to the liquid storage tank, thereby circulating and dissipating heat.

[0031] A pressure valve is arranged on the outlet port. When the pressure of the outlet port reaches a set value, the outlet port is opened, and the cooling liquid circulation operation is performed. In the initial state, the sealed chamber is in a deflated state. After the cooling liquid is injected inward, the pressure value in the sealed chamber does not reach the set value, and the outlet port is not opened. At this time, the cooling liquid remains in the sealed chamber. The annular folding cover is an annular organ cover, so that the sealed chamber can expand and push the contact plate 223 to move forward and contact the side wall of the battery body. The contact plate 223 is made of a heat-conducting metal. At this time, the cooling liquid continues to be injected, and the heat dissipation block 22 moves out of the battery box 2. Finally, the inclined surface at the front end of the heat dissipation block 22 contacts the heat dissipation groove 21, thereby blocking the heat dissipation groove 21. At this time, the heat dissipation block 22 cannot move any more, and the space inside the sealed chamber does not become larger. At this time, the injection port continues to inject the cooling liquid, thereby increasing the pressure in the sealed chamber. When the set value is reached, the outlet port is opened, and the excess cooling liquid is returned to the liquid storage tank through the pipeline.

[0032] And the pressure in the sealed chamber is maintained at a set pressure, and the peripheral wall of the battery box 2 is provided with a heat dissipation groove 21, and the heat dissipation block 22 is arranged in each heat dissipation groove 21, and the battery body is in contact with the heat dissipation block on the four peripheral surfaces, and the heat dissipation block 22 on the four peripheral surfaces is pressed tightly on the side surface of the battery body, which prevents the battery body from deforming due to excessive temperature, and the contact plate 223 is in contact with the battery body, and the cooling in the sealed chamber is realized by heat exchange through the contact plate 223, thereby cooling the battery body.

[0033] Wherein the liquid cooling device includes a liquid storage tank and a circulating pump, the circulating pump is powered by the battery body, the circulating pump can rotate forward or reverse, when the heat dissipation operation is performed, the circulating pump rotates forward, and the cooling liquid in the liquid storage tank is injected into the sealed chamber from the injection port, and the battery body is fixed and supported, and the battery body is cooled by liquid cooling, when the temperature of the battery body decreases to the set temperature and the humidity decreases to the set value, the air cooling can be started at this time, at this time the circulating pump is reversed, the pressure valve on the outlet is a one-way valve, therefore the circulating pump reverses to suck the cooling liquid in the sealed chamber back to the liquid storage tank, thereby the space of the sealed chamber is reduced and returns to the initial state, the heat dissipation block 22 is pressed on the battery body by the top contact block 222 under the action of the first elastic member, and the battery box 2 returns to the air cooling state.

[0034] The base 1 is also provided with a filter screen device for filtering the air entering the battery box 2, the filter screen device includes a filter screen 41 and a rotating roller 42, the rotating roller 42 is rotatably arranged on the base 1, the battery box 2 is a rectangular parallelepiped, and four rotating rollers 42 are respectively located outside the four right angles of the cross section of the battery box 2, the filter screen 41 is tightly sleeved on the four rotating rollers 42, so that the filter screen 41 surrounds the four peripheral surfaces of the battery box 2 upward, one of the rotating rollers 42 is a power roller or a rotating motor is connected to one of the rotating rollers 42, thereby making this rotating roller 42 rotate, the rotating roller 42 drives the filter screen 41 to rotate, and a sponge layer 411 is arranged on the inner side of the filter screen 41, the sponge layer 411 is used to absorb the moisture in the flowing air, and a detection unit is also arranged on the base 1, the detection unit is used to detect the humidity in the battery box 2 and the temperature of the battery body, because the sand beach vehicle is used in the sand beach environment, the salt content in the air is relatively high, therefore when the humidity around the battery box 2 is too high, the contact or control parts on the battery body will be corroded, and when the temperature of the battery body is too high, the battery body will become unstable and be damaged, therefore when the detection unit detects that the humidity in the battery box 2 exceeds the set value or the temperature of the battery body exceeds the set value, the battery box 2 is closed and converted to a liquid cooling state.

[0035] In the initial state, the heat dissipation slot 21 is open, and the battery body is cooled by air. When the ATV is in motion, air enters the battery box 2 from the front end and flows out from the rear end of the battery box 2, thus performing air cooling on the battery body inside.

[0036] Before entering the battery box 2, the air passes through the filter screen 41, which filters out the sand and gravel in the air. The sponge layer 411 absorbs the moisture at the end of the air. At the same time, the rotating roller 42 drives the filter screen 41 to rotate. The front end of the annular filter screen is the windward side, so the sand and gravel accumulate on the front end of the filter screen. As the rotating roller 42 drives the filter screen 41 to rotate, the filter screen area on the windward side is constantly changing. When the filter screen containing sand and gravel moves to the side or rear end of the battery box 2, the vibration force of the vehicle driving will shake the sand and gravel off the filter screen. At the same time, when it moves to the rear end, the air blown out from the rear end will simultaneously blow the filter screen 41 outward.

[0037] Since the filter element 41 is tensioned and mounted on four rotating rollers 42, the sponge layer 411 at the rotating rollers 42 is in a compressed state. Therefore, the sponge layer 411 undergoes a squeezing operation each time it passes over the rotating rollers 42, thereby squeezing out the water in the sponge layer 411 at the point of passage and drying the sponge layer 411. At the same time, when the sponge layer 411 passes the rear end of the battery box 2, the heat from the battery is carried away, which to some extent dries the sponge layer 411 passing from the rear end.

[0038] Its working principle or usage method is as follows:

[0039] In the initial state, the heat dissipation slot 21 is in the open state. At this time, the battery body is cooled by air cooling. When the ATV is in motion, air enters the battery box 2 from the front end and flows out from the rear end of the battery box 2, performing air cooling operation on the battery body inside.

[0040] Before entering the battery box 2, the air passes through the filter screen 41, which filters out the sand and gravel in the air. The sponge layer 411 absorbs the moisture at the end of the air. At the same time, the rotating roller 42 drives the filter screen 41 to rotate. When the filter screen containing sand and gravel moves to the side or rear end of the battery box 2, the vibration force of the vehicle driving will shake the sand and gravel off the filter screen. The sponge layer 411 is squeezed once each time it passes through the rotating roller 42, thereby squeezing out the moisture in the sponge layer 411 at the location it passes through. When the filter screen moves to the rear end of the battery box 2, the air blown out from the rear end simultaneously blows the filter screen 41 outward, that is, dries the sponge layer 411 and blows the filter screen outward.

[0041] When the detection unit detects that the humidity inside the battery box 2 exceeds the set value or the battery body temperature exceeds the set value, the liquid cooling device is activated, thereby switching the cooling method to liquid cooling mode.

[0042] After the liquid cooling device is started, it can inject coolant into the sealed chamber from the inlet. A pressure valve is installed on the outlet. When the pressure at the outlet reaches the set value, the outlet opens, and the coolant circulates.

[0043] The sealed chamber is initially deflated. After coolant is injected, the outlet does not open because the pressure inside the sealed chamber does not reach the set value. At this time, the coolant remains in the sealed chamber, and the sealed chamber can expand, pushing the contact plate 223 forward to touch the side wall of the battery body. At this time, the coolant continues to be injected, causing the heat sink 22 to move out of the battery box 2. Finally, the inclined surface at the front end of the heat sink 22 touches the heat sink 21, thus sealing the heat sink 21. At this time, the heat sink 22 can no longer move, and the battery box 2 is in a closed state.

[0044] After the battery box 2 is sealed, the space inside the sealed chamber no longer increases. At this time, the injection port continues to inject coolant, which causes the pressure inside the sealed chamber to rise. When the set pressure is reached, the outlet opens, allowing excess coolant to flow back into the reservoir through the pipe. The pressure inside the sealed chamber is maintained at the set pressure. The heat dissipation blocks 22 on the four sides of the battery box 2 press the sides of the battery body to prevent the battery body from deforming due to excessive temperature. At the same time, the contact plate 223 contacts the battery body, and the cooling inside the sealed chamber is achieved through the heat exchange via the contact plate 223, thereby dissipating heat from the battery body.

[0045] Example 2:

[0046] The difference between this embodiment and Example 1 lies in the structure of the filter device; all other aspects are the same. See also... Figures 1-8 An inclined air guide plate 12 is provided between the rear end of the battery box 2 and the base 1, and an air outlet 11 is provided on the base 1. The air outlet 11 is located between the battery box 2 and the air guide plate 12. An air vent is provided on the air guide plate 12. The air vent is aligned with the inner wall of the filter screen 41 behind it through a channel component. The airflow entering the battery box 2 flows out from the air vent and acts on the filter screen 41 to blow the filter screen outward.

[0047] The airflow from the rear end of the battery box 2 is guided by the air guide plate 12 and flows outward from the air outlet 11 on the base 1, thereby reducing the resistance of the airflow and allowing the air at the front end of the battery box 2 to quickly enter the battery box 2.

[0048] Part of the airflow enters the channel member, so that the air can flow quickly and part of the air can blow the filter screen member 41 at the rear end.

[0049] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation mounting box for a beach buggy battery, characterized in that: Includes a base (1), on which a battery box (2) for placing batteries is disposed, and the battery box (2) has multiple heat dissipation slots (21) for ventilation, and heat dissipation blocks (22) for sealing or opening are disposed on the heat dissipation slots (21), and a liquid cooling device is connected to the heat dissipation blocks (22) for cooling the heat dissipation blocks. The base (1) is also equipped with a detection unit, which is used to detect the humidity around the battery box (2) and the temperature of the battery body; The battery box (2) is equipped with a conversion device. When the detection unit detects that the ambient humidity is too high or the battery body temperature is too high, the conversion device controls the start of the liquid cooling device to dissipate heat from the battery box (2) and at the same time closes the heat dissipation slot (21).

2. The ATV battery heat dissipation mounting box according to claim 1, characterized in that: The base (1) is also equipped with a filter screen device (4) for filtering sand and gravel. The filter screen device (4) includes a filter screen element (41) and a plurality of rotating rollers (42) for guiding the filter screen element (41). The rotating rollers (42) are rotatably arranged on the base (1). The filter screen element (41) is arranged around the rotating rollers (42) and surrounds the battery box (2) to filter the airflow entering the battery box (2).

3. The ATV battery heat dissipation mounting box according to claim 2, characterized in that: The inner wall of the filter element (41) is provided with a sponge layer (411), which is used to absorb moisture on the gas flowing through it.

4. The ATV battery heat dissipation mounting box according to claim 3, characterized in that: One of the rotating rollers (42) is equipped with a rotating motor to drive the filter screen (41) to rotate. The sponge layer (411) is squeezed at the rotating roller (42) and then dehydrated.

5. The ATV battery heat dissipation mounting box according to claim 1, characterized in that: An inclined air guide plate (12) is provided between the rear end of the battery box (2) and the base (1), and an air outlet (11) is provided on the base (1). The air outlet (11) is located between the battery box (2) and the air guide plate (12), and the airflow entering the battery box (2) flows out from the air outlet (11).

6. The ATV battery heat dissipation mounting box according to claim 5, characterized in that: The air guide plate (12) has an air vent. The air vent is aligned with the inner wall of the filter screen (41) behind it through the channel component. The airflow that enters the battery box (2) flows out from the air vent and acts on the filter screen (41) to blow the filter screen outward.

7. The ATV battery heat dissipation mounting box according to claim 1, characterized in that: The heat sink (22) has a sliding groove (221) and a guide rod (211) is arranged on the heat sink (21). The heat sink (22) is slidably arranged on the guide rod (211) through the sliding groove (221), and a first elastic element is arranged between the guide rod (211) and the heat sink (22) to elastically push the heat sink (22) open so that the heat sink (21) is unobstructed.

8. The ATV battery heat dissipation mounting box according to claim 1, characterized in that: The heat sink (22) is provided with a contact plate (223). The contact plate (223) and the heat sink (22) are connected by an annular folding cover to form a sealed cavity. The heat sink (22) is provided with an injection port and an outlet port that are connected to the liquid cooling device. When the liquid cooling device is started, it injects liquid into the sealed cavity. The annular folding cover expands and the contact plate (223) presses against the battery body. At the same time, it pushes the heat sink (22) to slide out of the battery box (2) to seal the heat sink (21).

9. A beach buggy battery heat dissipation mounting box according to claim 8, characterized in that: A pressure valve is installed at the outlet, which opens when the pressure in the liquid flow chamber reaches a set value, allowing the liquid cooling device to circulate the coolant.

10. ATV equipped with a battery heat dissipation mounting box as described in any one of claims 1-9, characterized in that: The beach buggy is equipped with a battery cooling installation box containing a power battery, and a hub motor is installed on the rear wheel of the vehicle. The power battery provides power to the hub motor, which assists in the vehicle's movement.

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