Protection box with efficient heat conduction and cooling structure for automobile power battery

Abstract

The invention belongs to the technical field of automobile power battery protection, and particularly relates to an automobile power battery protection box with an efficient heat conduction and cooling structure, the automobile power battery protection box comprises a box body, an air cooling mechanism, a water cooling mechanism and a decontamination mechanism, the box body comprises a box body with the top of an open structure and a box cover located at the top of the box body; an air inlet groove is formed in one side of the box body, an air outlet groove is formed in one side of the box body, and filter plates are arranged on the side walls of the air inlet groove and the air outlet groove; when the air cooling mechanism works, external air is sucked into the box body through the air inlet groove, and meanwhile air in the box body is discharged out of the box body through the air outlet groove. When the air cooling mechanism works, the water cooling mechanism is automatically driven to work, and the interior of the box body is cooled through cooling water; and when the water cooling mechanism works, the decontamination mechanism is automatically driven to start to work to sweep the outer side wall of the filter plate on the side wall of the air inlet groove, so that the problem that potential safety hazards are increased after an automobile runs for a long time due to the poor cooling effect on the battery in the protection box is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile power battery protection, and in particular to a protection box for an automobile power battery provided with a high-efficiency heat conduction and cooling structure. Background Art

[0002] With the rise of new energy, the development of new energy vehicles is also getting faster and faster. The core components of new energy vehicles include power batteries. The performance of batteries directly affects the main performance of the car. The automotive battery pack is composed of multiple battery cells connected in series into modules. Since the batteries at the bottom of the car need to be protected from being bumped, a protective box will be installed at the bottom of the car to protect the battery pack. However, the number of batteries required for the vehicle is large, and the batteries are tightly arranged and connected. When the vehicle is running under different driving conditions such as high speed, low speed, acceleration, and deceleration, the battery will discharge at different rates and generate a lot of heat. Cooling and dissipating the batteries in the protective box is an important measure to ensure the safety of new energy vehicles.

[0003] However, the main method for cooling and dissipating heat from the batteries in the protective box at the bottom of the car is to naturally cool the battery protective box through high-speed air flow during the driving of the vehicle. The cooling effect is poor. As the driving range of new energy vehicles increases, it is unable to meet the requirement of rapid cooling of the batteries during long-term driving of the vehicle, resulting in increased safety risks in driving the vehicle. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a protective box for an automobile power battery equipped with a high-efficiency heat conduction and cooling structure, which replaces the traditional method of cooling the battery in the automobile power battery protective box, thereby avoiding the poor cooling effect of the battery in the protective box, thereby causing the safety hazard of the automobile to increase after long-term driving.

[0006] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A protective box for an automotive power battery provided with a high-efficiency heat conduction and cooling structure, comprising:

[0008] A box body, comprising a box body with an open top structure and a box cover located on the top of the box body, one side of the box body is provided with an air inlet slot and one side of the box body is provided with an air outlet slot, and the side walls of the air inlet slot and the air outlet slot are provided with filter plates;

[0009] An air cooling mechanism is installed in the box body, and when the air cooling mechanism is in operation, the external air is drawn into the box body through the air inlet slot and the air inside the box body is discharged out of the box body through the air outlet slot;

[0010] A water cooling mechanism is installed on the box cover, wherein the air cooling mechanism automatically drives the water cooling mechanism to work when the air cooling mechanism is working, and cools down the inside of the box body through cooling water;

[0011] A dirt removal mechanism is installed on the side wall of the box body, wherein when the water cooling mechanism is working, it automatically drives the dirt removal mechanism to start working to clean the outer side wall of the filter plate on the side wall of the air inlet slot.

[0012] As a preferred solution of the protective box for an automotive power battery provided with a high-efficiency heat-conducting and cooling structure described in the present invention, the air cooling mechanism includes a first electric fan installed in the air inlet groove and drawing external air into the interior of the box body when in operation, and a second electric fan installed in the air outlet groove and drawing air inside the box body to the outside when in operation.

[0013] As a preferred solution of the protective box for automotive power batteries provided with a high-efficiency heat-conducting and cooling structure described in the present invention, the water cooling mechanism includes a heat dissipation pipe installed at the bottom of the box cover, a heat exchanger located at the top of the box cover, and a water guiding component which automatically draws cooling water in the heat exchanger into one end of the heat dissipation pipe and re-draws water at the other end of the heat dissipation pipe into the heat exchanger when the air cooling mechanism is working.

[0014] As a preferred solution of the protective box for an automotive power battery provided with a high-efficiency heat conduction and cooling structure described in the present invention, the water guide component includes a first pumping component for pumping cooling water in the heat exchanger into the heat pipe when the first electric fan is working, and a second pumping component for pumping water at the other end of the heat pipe into the heat exchanger when the second electric fan rotates.

[0015] As a preferred solution of the automotive power battery protection box with a high-efficiency heat conduction and cooling structure described in the present invention, a first water conduit extending from the top of the box cover is provided at the top of one end of the heat dissipation pipe;

[0016] The first water pumping assembly includes a first water pumping pipe having one end connected to the output end of the heat exchanger and the other end connected to the first water conduit, a first auger located in the first water pumping pipe, and a first pulley connected to the side wall of the first auger through a rotating shaft, and a second pulley having one end connected to the side wall of the first electric fan through a rotating shaft and connected to the first pulley through a belt.

[0017] As a preferred solution of the protective box for automotive power batteries provided with a high-efficiency heat conduction and cooling structure described in the present invention, the second water pumping assembly includes a second water pumping pipe with an open bottom structure and a bottom extending to the other end of the heat dissipation pipe, a second auger located in the second water pipe, and a third pulley connected to the side wall of the second auger through a rotating shaft, and a bevel gear set having one end connected to the side wall of the second electric fan through a rotating shaft and the other end connected to a fourth pulley, the fourth pulley being connected to the third pulley through a belt, and the top side wall of the second water pipe is provided with a second water pipe with the other end connected to the input end of the heat exchanger.

[0018] As a preferred solution of the protective box for automotive power batteries provided with a high-efficiency heat conduction and cooling structure described in the present invention, a first scraper plate is provided on the rotating shaft connecting the bevel gear set with the side wall of the second electric fan, and the side wall is in contact with the outer wall of the filter plate of the side wall of the air outlet slot.

[0019] As a preferred solution of the protective box for automotive power batteries provided with a high-efficiency heat conduction and cooling structure described in the present invention, the dirt removal mechanism includes a reciprocating screw installed on the side wall of the box body with opposite textures at both ends, a limiting slide installed on the side wall of the box body, two second scraping plates with one end threadedly sleeved on both ends of the reciprocating screw and the other end slidably sleeved on the limiting slide, and a transmission assembly with one end transmission connected to the reciprocating screw and the other end transmission connected to the first pumping assembly.

[0020] As a preferred solution of the protective box for an automotive power battery provided with a high-efficiency heat conduction and cooling structure described in the present invention, the transmission assembly includes a fifth pulley connected to the reciprocating screw through a rotating shaft and a transmission rod extending into the first water conduit and having spiral blades at the bottom and a sixth pulley at the top, and the sixth pulley is connected to the fifth pulley through a belt.

[0021] As a preferred solution of the protective box for automotive power batteries provided with a high-efficiency heat conduction and cooling structure described in the present invention, it further includes a buffer heat conduction mechanism, which includes a first heat conduction plate located below the box cover and having an elastic telescopic rod on the top, and a plurality of elastic heat conduction members located on the top of the first heat conduction plate, wherein the top of the elastic telescopic rod is connected to the top of the inner wall of the box cover;

[0022] A second heat conducting plate whose bottom is connected to the tops of the plurality of elastic heat conducting members is arranged at the bottom of the heat dissipation pipe.

[0023] Compared with the prior art, the beneficial effect of the present invention is that the protective box for automobile power batteries provided with a high-efficiency heat conduction and cooling structure starts working through the air cooling mechanism, so that the external air and the air inside the box body are circulated, thereby air-cooling and cooling the batteries inside the box body. During the operation of the air cooling mechanism, the water cooling mechanism is driven to work, and the inside of the box body is cooled by cooling water. At the same time, when the water cooling mechanism is working, the outlet mechanism is driven to work to clean the dirt on the side wall of the filter plate on the side wall of the air inlet slot, thereby preventing the dirt from affecting the air permeability of the filter plate, and then cooling the batteries inside the box body by cooling them simultaneously through air cooling and water cooling, replacing the traditional method of cooling the batteries in the automobile power battery protective box, avoiding the poor cooling effect of the batteries in the protective box, thereby causing the problem of increased safety hazards after the car has been driving for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in combination with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 A schematic structural diagram of a protective box for a vehicle power battery provided with a high-efficiency heat conduction and cooling structure from one perspective of the present invention;

[0026] Figure 2 A schematic structural diagram of another perspective of a protective box for a vehicle power battery provided with a high-efficiency heat conduction and cooling structure according to the present invention;

[0027] Figure 3 This is a structural disassembly diagram of a protective box for an automotive power battery provided with a high-efficiency heat conduction and cooling structure according to the present invention;

[0028] Figure 4 It is a side sectional view of a box cover of a protective box for a vehicle power battery provided with a high-efficiency heat conduction and cooling structure according to the present invention;

[0029] Figure 5 This is a disassembled view of the connection structure between the box cover and the buffer heat conduction mechanism of a protective box for an automotive power battery provided with a high-efficiency heat conduction and cooling structure according to the present invention;

[0030] Figure 6 The present invention is a side sectional view of a protective box for an automotive power battery provided with a high-efficiency heat-conducting and cooling structure.

[0031] In the figure: 100, box body; 110, box body; 110a, air inlet slot; 110b, air outlet slot; 110c, filter plate; 120, box cover; 200, air cooling mechanism; 210, first electric fan; 220, second electric fan; 300, water cooling mechanism; 310, heat pipe; 310a, first water guide pipe; 310b, second heat conduction plate; 320, heat exchanger; 330, water guide assembly; 330a, first pumping assembly; 330a-1, first pumping pipe; 330a-2, first auger; 330a-3, first pulley; 330a-4, second pulley; 330b, second pumping assembly; 330b-1, The second water extraction pipe; 330b-11, the second water guide pipe; 330b-2, the second auger; 330b-3, the third pulley; 330b-4, the bevel gear set; 330b-41, the fourth pulley; 330b-42, the first scraper; 400, the dirt removal mechanism; 410, the reciprocating screw; 420, the limit slide; 430, the second scraper; 440, the transmission assembly; 440a, the fifth pulley; 440b, the transmission rod; 440b-1, the spiral blade; 440b-2, the sixth pulley; 500, the buffer heat conduction mechanism; 510, the first heat conduction plate; 510a, the elastic telescopic rod; 520, the elastic heat conduction member. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] The present invention provides a protective box for an automobile power battery with a high-efficiency heat-conducting and cooling structure, which replaces the traditional method of cooling the battery in the automobile power battery protective box, thereby avoiding the problem of poor cooling effect of the battery in the protective box, thereby increasing the safety hazard after the automobile is driven for a long time.

[0036] Figure 1-Figure 6 The figure shows a schematic diagram of a protective box for a vehicle power battery provided with a high-efficiency heat conduction and cooling structure according to the present invention. Figure 1-Figure 6A detailed introduction is given to this type of protective box for automotive power batteries which is equipped with a high-efficiency heat conduction and cooling structure.

[0037] Example 1

[0038] refer to Figure 1-Figure 6 The present invention discloses a protective box for an automotive power battery with a high-efficiency heat conduction and cooling structure, the main body of which includes a box body 100, an air cooling mechanism 200, a water cooling mechanism 300 and a decontamination mechanism 400.

[0039] refer to Figure 1-Figure 3 The box body 100 is used to carry the automotive power battery and protect its exterior. The box body 100 includes a box body 110 with an open top structure and a box cover 120 located on the top of the box body 110. The box body 110 is used to carry the automotive power battery and protect the bottom and both sides of the battery. The box cover 120 is used to protect the top of the battery. An air inlet slot 110a is opened on one side of the box body 110 and an air outlet slot 110b is opened on one side. The air inlet slot 110a is used to facilitate the outside air to enter the box body 110 when the air cooling mechanism 200 is working. The air outlet slot 110b is used to facilitate the air inside the box body 110 to be discharged when the air cooling mechanism 200 is working. The side walls of the air inlet slot 110a and the air outlet slot 110b are provided with filter plates 110c for filtering impurities in the air entering the box body 110 from the outside;

[0040] refer to Figure 1-Figure 6 The air cooling mechanism 200 is used to dissipate the heat of the battery side wall inside the box body 110 through air flow. The air cooling mechanism 200 is installed in the box body 110. When the air cooling mechanism 200 is working, the external air is drawn into the box body 110 through the air inlet slot 110a and the air inside the box body 110 is discharged from the box body 110 through the air outlet slot 110b. When the air cooling mechanism 200 is working, the external air is drawn into the box body 110 through the air inlet slot 110a and then discharged from the air outlet slot 110b. At the same time, the heat inside the box body 110 is taken out of the box body 110 by the circulating air, so as to cool the inside of the box body 110.

[0041] refer to Figure 1-Figure 6 The water cooling mechanism 300 is used to cool the interior of the box body 110 by water. The water cooling mechanism 300 is installed on the box cover 120. When the air cooling mechanism 200 is working, it automatically drives the water cooling mechanism 300 to work, and cools the interior of the box body 110 by cooling water. When the air cooling mechanism 200 is working, it drives the water cooling to start working, and cools the interior of the box body 110 by cooling water.

[0042] refer to Figure 1-Figure 3The dirt removing mechanism 400 is used to clean up the dust and other impurities attached to the side wall of the filter plate 110c on the side wall of the air inlet slot 110a, to avoid clogging the filter plate 110c and affecting the external air from entering the box body 110. The dirt removing mechanism 400 is installed on the side wall of the box body 110, wherein when the water cooling mechanism 300 is working, it automatically drives the dirt removing mechanism 400 to start working to clean the outer wall of the filter plate 110c on the side wall of the air inlet slot 110a, so that when the water cooling mechanism 300 is working, it automatically drives the dirt removing mechanism 400 to start working to clean the impurities on the side wall of the filter plate 110c on the side wall of the air inlet slot 110a, to avoid the impurities in the air blocking the holes of the filter plate 110c when the external air continues to enter the box body 110.

[0043] In this embodiment, the specific use process is as follows: when the car is driving, after the battery temperature inside the box body 110 rises, the air cooling mechanism 200 starts to work so that the external air continuously enters the box body 110 through the air inlet slot 110a and is then discharged from the air outlet slot 110b, thereby utilizing the continuously flowing air to bring the heat inside the box body 110 out of the box body 110. At the same time, the air cooling mechanism 200 drives the water cooling mechanism 300 to start working, and synchronously cools the inside of the box body 110 through cooling water, thereby quickly cooling the inside of the box body 110. During this process, the decontamination mechanism 400 cleans the side wall of the filter plate 110c on the side wall of the air inlet slot 110a, thereby preventing impurities in the continuously and rapidly flowing air from blocking the holes of the filter plate 110c on the side wall of the air inlet slot 110a, resulting in poor air permeability and affecting the cooling effect.

[0044] Example 2

[0045] Based on Example 1, Figure 6 The air cooling mechanism 200 includes a first electric fan 210 installed in the air inlet slot 110a and drawing external air into the box body 110 when working, and a second electric fan 220 installed in the air outlet slot 110b and drawing air inside the box body 110 to the outside when working. The first electric fan 210 is used to draw external air into the box body 110 when rotating, and the second electric fan 220 is used to draw air inside the box body 110 out of the box body 110 and discharge it to the outside when rotating, thereby forming a continuous air flow between the inside and outside of the box body 110. At the same time, the fast-flowing air brings the heat inside the box body 110 out of the box body 110, thereby cooling the batteries inside the box body 110.

[0046] Example 3

[0047] Based on Example 2, Figure 4-Figure 6The water cooling mechanism 300 includes a heat pipe 310 installed at the bottom of the box cover 120, a heat exchanger 320 located at the top of the box cover 120, and a water guide component 330 that automatically draws the cooling water in the heat exchanger 320 into one end of the heat pipe 310 and re-draws the water at the other end of the heat pipe 310 into the heat exchanger 320 when the air cooling mechanism 200 is working. The heat pipe 310 is used to exchange heat between the internal cooling water and the heat inside the box body 110, thereby cooling the inside of the box body 110. The heat exchanger 320 is used to continuously release cooling water. The water guide component 330 is used to drive the air cooling mechanism 200 to start working when it is working, draw the cooling water in the heat exchanger 320 into the heat pipe 310 and re-draw the water after heat exchange in the heat pipe 310 into the heat exchanger 320, thereby forming a cooling water circulation, and then continuously cooling the inside of the box body 110 with cooling water.

[0048] In this embodiment, reference Figure 6 The water guide component 330 includes a first pumping component 330a for pumping cooling water in the heat exchanger 320 into the heat pipe 310 when the first electric fan 210 is working, and a second pumping component 330b for pumping water at the other end of the heat pipe 310 into the heat exchanger 320 when the second electric fan 220 rotates. The first pumping component 330a is used to drive the first electric fan 210 to work when it rotates to pump the cooling water in the heat exchanger 320 into the heat pipe 310, and the second pumping component 330b is used to drive the second electric fan 220 to work when it rotates to pump the water after heat exchange in the heat pipe 310 into the heat exchanger 320.

[0049] In this embodiment, reference Figure 6 A first water pipe 310a extending from the top of the box cover 120 is provided at the top of one end of the heat dissipation pipe 310, and is used to guide the cooling water pumped out of the first water pumping pipe 330a-1 into the heat dissipation pipe 310;

[0050] refer to Figure 6The first pumping assembly 330a includes a first pumping pipe 330a-1 connected to the output end of the heat exchanger 320 at one end and connected to the first water conduit 310a at the other end, a first auger 330a-2 located in the first pumping pipe 330a-1, a first pulley 330a-3 connected to the side wall of the first auger 330a-2 through a rotating shaft, and a second pulley 330a-4 connected to the side wall of the first electric fan 210 through a rotating shaft and connected to the first pulley 330a-3 through a belt. The first pumping pipe 330a-1 is used to facilitate the installation of the first auger 330a-2, and the first auger 330a-2 is used to guide the cooling water released in the heat exchanger 320 into the first pumping pipe 330 when rotating. a-1, the first pulley 330a-3 is used to drive the first auger 330a-2 to rotate when it rotates, and the second pulley 330a-4 is used to drive the first pulley 330a-3 to rotate when the first electric fan 210 rotates and drives it to rotate, so that when the first electric fan 210 rotates and drives the second pulley 330a-4 to rotate, it drives the first pulley 330a-3 to rotate, and when the first pulley 330a-3 rotates, it drives the first auger 330a-2 to rotate. When the first auger 330a-2 rotates, the cooling water released from the heat exchanger 320 is pumped into the first pumping pipe 330a-1, and the cooling water in the first pumping pipe 330a-1 flows into the heat pipe 310 through the first water conduit 310a.

[0051] In this embodiment, reference Figure 6The second pumping assembly 330b includes a second pumping pipe 330b-1 with an open bottom and a bottom extending to the other end of the heat dissipation pipe 310, a second auger 330b-2 located in the second water conduit 330b-11, and a third pulley 330b-3 connected to the side wall of the second auger 330b-2 through a rotating shaft, and a bevel gear set 330b-4 having one end connected to the side wall of the second electric fan 220 through a rotating shaft and the other end connected to a fourth pulley 330b-41. 330b-1 is used to facilitate the installation of the second auger 330b-2. The second auger 330b-2 is used to pump the exchanged water in the heat pipe 310 into the second water pumping pipe 330b-1 when rotating. The third pulley 330b-3 is used to drive the second auger 330b-2 to rotate when rotating. The bevel gear set 330b-4 is used to drive the fourth belt road to rotate when the second electric fan 220 rotates and drives it to rotate. The fourth pulley 330b-41 is used to drive the third pulley 330 b-3 rotates, the fourth pulley 330b-41 is connected to the third pulley 330b-3 through a belt, and the top side wall of the second water pipe 330b-11 is provided with a second water pipe 330b-11 connected at the other end to the input end of the heat exchanger 320, which is used to re-introduce the heat exchanged water extracted through the second water extraction pipe 330b-1 into the heat exchanger 320, so that when the second electric fan 220 rotates and drives the bevel gear set 330b-4 to rotate, the fourth pulley 330b- 41 rotates, and when the fourth pulley 330b-41 rotates, it drives the third pulley 330b-3 to rotate, and when the third pulley 330b-3 rotates, it drives the second auger 330b-2 to rotate. When the second auger 330b-2 rotates, the water after heat exchange in the heat dissipation pipe 310 is pumped into the second water pumping pipe 330b-1 and then re-introduced into the heat exchanger 320 from the second water pipe 330b-11, thereby realizing the cooling water circulation, and then continuously cooling the interior of the box body 110 with cooling water.

[0052] In this embodiment, the specific working process is as follows: when the first electric fan 210 rotates, it drives the second pulley 330a-4 to rotate, and automatically drives the first pulley 330a-3 to rotate. When the first pulley 330a-3 rotates, it drives the first auger 330a-2 to rotate. When the first auger 330a-2 rotates, the cooling water released in the heat exchanger 320 is pumped into the first pumping pipe 330a-1. The cooling water in the first pumping pipe 330a-1 flows into the heat dissipation pipe 310 through the first water conduit 310a. The cooling water flows inside the heat dissipation pipe 310 and exchanges heat with the inside of the box body 110 at the same time. At the same time, when the second electric fan 220 rotates, it drives the bevel gear set 330b-4 to rotate, and drives the fourth pulley 330b-41 to rotate. When the fourth pulley 330b-41 rotates, it drives the third pulley 330b-3 to rotate. When the third pulley 330b-3 rotates, it drives the second auger 330b-2 to rotate. When the second auger 330b-2 rotates, the water after heat exchange in the heat pipe 310 is pumped into the second water pumping pipe 330b-1 and then re-introduced into the heat exchanger 320 from the second water pipe 330b-11, thereby realizing cooling water circulation, and then continuously cooling the interior of the box body 110 with cooling water.

[0053] Example 4

[0054] Based on Example 3, Figure 2 In order to prevent the holes of the filter plate 110c on the side wall of the air outlet slot 110b from being contaminated and clogged by impurities in the outside air during the parking of the car, a first scraper plate 330b-42 whose side wall is in contact with the outer wall of the filter plate 110c on the side wall of the air outlet slot 110b is provided on the rotating shaft connected to the bevel gear set 330b-4 and the side wall of the second electric fan 220. The first scraper plate 330b-42 is used to drive the first scraper plate 330b-42 to rotate along the outer wall of the filter plate 110c when the second electric fan 220 rotates and drives the bevel gear set 330b-4 to rotate, thereby removing a small amount of impurities attached to the side wall of the filter plate 110c on the side wall of the air outlet slot 110b.

[0055] Example 5

[0056] Based on Example 4, Figure 1-Figure 3The dirt removal mechanism 400 includes a reciprocating screw 410 installed on the side wall of the box body 110 and having opposite lines at both ends, a limiting slide 420 installed on the side wall of the box body 110, two second scraping plates 430 with one end threadedly sleeved on both ends of the reciprocating screw 410 and the other end slidably sleeved on the limiting slide 420, and a transmission component 440 with one end transmission connected to the reciprocating screw 410 and the other end transmission connected to the first pumping component 330a. The reciprocating screw 410 is used to drive the two second scraping plates 430 to move back and forth repeatedly when rotating, and the limiting slide 420 is used to One end of the scraper plate 430 is limited to prevent the reciprocating screw 410 from driving the second scraper plate 430 to rotate synchronously and unable to move in a straight line when the reciprocating screw 410 rotates. The transmission assembly 440 is used to drive the reciprocating screw 410 to rotate when the first pumping assembly 330a is working. Therefore, when the first pumping assembly 330a is working, the reciprocating screw 410 is driven to rotate through the transmission assembly 440. When the reciprocating screw 410 rotates, it drives the two second scrapers 430 to move back and forth repeatedly, thereby removing impurities on the side wall of the filter plate 110c on the side wall of the air inlet slot 110a.

[0057] In this embodiment, reference Figure 3 The transmission assembly 440 includes a fifth pulley 440a connected to the reciprocating screw rod 410 through a rotating shaft, and a transmission rod 440b extending into the first water conduit 310a and having a spiral blade 440b-1 at the bottom and a sixth pulley 440b-2 at the top. The fifth pulley 440a is used to drive the reciprocating screw rod 410 to rotate when rotating, the transmission rod 440b is used to drive the sixth pulley 440b-2 to rotate when rotating, and the sixth pulley 440b-2 is used to drive the fifth pulley 440a to rotate when rotating. The spiral blade 440b-1 is used to drive the cooling water in the first pumping pipe 330a-1 to flow down through the first water conduit 310a. When the first pumping assembly 330a is working, as the cooling water continues to flow from the first water pipe 310a, the spiral blade 440b-1 is driven to rotate continuously, which in turn drives the transmission rod 440b to rotate. When the transmission rod 440b rotates, it drives the sixth pulley 440b-2 to rotate. When the sixth pulley 440b-2 rotates, it drives the fifth pulley 440a to rotate. When the fifth pulley 440a rotates, it drives the reciprocating screw 410 to rotate.

[0058] In this embodiment, the specific working process is as follows: when the first pumping component 330a is working, as the cooling water continues to flow down from the first water pipe 310a, it drives the spiral blade 440b-1 to rotate continuously and then drives the transmission rod 440b to rotate. When the transmission rod 440b rotates, it drives the sixth pulley 440b-2 to rotate. During the rotation of the sixth pulley 440b-2, it drives the fifth pulley 440a to rotate. When the fifth pulley 440a rotates, it drives the reciprocating screw 410 to rotate. When the reciprocating screw 410 rotates, it drives the two second scraping plates 430 to move back and forth repeatedly, thereby sweeping away impurities on the side wall of the filter plate 110c on the side wall of the air inlet slot 110a, thereby preventing the holes of the filter plate 110c on the side wall of the air inlet slot 110a from being blocked by impurities, resulting in poor air permeability.

[0059] Example 6

[0060] Based on Example 5, Figure 4-Figure 5 In order to enhance the cooling effect of the water cooling mechanism 300 on the battery inside the box body 110, a buffer heat conducting mechanism 500 is also included. The buffer heat conducting mechanism 500 includes a first heat conducting plate 510 located below the box cover 120 and having an elastic telescopic rod 510a on the top, and a plurality of elastic heat conducting members 520 located on the top of the first heat conducting plate 510. The top of the elastic telescopic rod 510a is connected to the top of the inner wall of the box cover 120. The bottom of the second heat conducting plate 310b is always in contact with the top of the battery pack inside the box body 110, so as to continuously and quickly conduct away the heat of the battery pack. The elastic heat conducting member 520 is used to transfer the heat absorbed by the second heat conducting plate 310b to the first heat conducting plate 510. The elastic telescopic rod 510a is used to make the battery pack inside the box body 110 shake during driving, and then expand and contract synchronously, so that the bottom of the second heat conducting plate 310b is always in contact with the battery pack for heat conduction.

[0061] A second heat conducting plate 310b connected to the tops of multiple elastic heat conducting members 520 is provided at the bottom of the heat pipe 310 for transferring the heat absorbed from the elastic heat conducting members 520 to the cooling water inside the heat pipe 310, thereby rapidly performing heat exchange to cool the battery.

[0062] In this embodiment, the specific working process is as follows: the heat generated by the battery pack is quickly absorbed by the second heat conducting plate 310b, and then transferred to the first heat conducting plate 510 through the elastic heat conducting member 520 to exchange heat with the cooling water inside the heat dissipation pipe 310, so as to quickly absorb the heat generated by the battery, cool the battery more directly, and improve the cooling efficiency. At the same time, through the setting of the elastic telescopic rod 510a and the elastic heat conducting member 520, the bottom of the second heat conducting plate 310b is kept in contact with the top of the battery pack during driving, avoiding the need to reserve a certain space between the top of the battery pack and the heat dissipation pipe 310 to prevent damage to the battery caused by shaking during driving, which affects the cooling effect of the battery pack, thereby enhancing the cooling efficiency.

[0063] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure, characterized in that: include: A box body (100) comprises a box body (110) with an open top structure and a box cover (120) located on the top of the box body (110), one side of the box body (110) is provided with an air inlet slot (110a) and one side of the box body (110) is provided with an air outlet slot (110b), and the side walls of the air inlet slot (110a) and the air outlet slot (110b) are provided with filter plates (110c); An air cooling mechanism (200) is installed in the box body (110). When the air cooling mechanism (200) is in operation, it draws external air into the box body (110) through the air inlet slot (110a) and simultaneously discharges the air inside the box body (110) out of the box body (110) through the air outlet slot (110b); A water cooling mechanism (300) is installed on the box cover (120), wherein when the air cooling mechanism (200) is in operation, it automatically drives the water cooling mechanism (300) to operate, thereby cooling the interior of the box body (110) by cooling water; A dirt removal mechanism (400) is installed on the side wall of the box body (110), wherein when the water cooling mechanism (300) is in operation, the dirt removal mechanism (400) is automatically driven to start working to clean the outer wall of the filter plate (110c) on the side wall of the air inlet slot (110a).

2. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 1, characterized in that: The air cooling mechanism (200) comprises a first electric fan (210) installed in the air inlet slot (110a) and sucking external air into the box body (110) when in operation, and a second electric fan (220) installed in the air outlet slot (110b) and sucking air inside the box body (110) to the outside when in operation.

3. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 2, characterized in that: The water cooling mechanism (300) comprises a heat dissipation pipe (310) installed at the bottom of the box cover (120), a heat exchanger (320) located at the top of the box cover (120), and a water guide component (330) which automatically pumps cooling water in the heat exchanger (320) into one end of the heat dissipation pipe (310) and pumps water at the other end of the heat dissipation pipe (310) back into the heat exchanger (320) when the air cooling mechanism (200) is in operation.

4. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 3 is characterized in that: The water guide component (330) comprises a first pumping component (330a) for pumping cooling water in the heat exchanger (320) into the heat dissipation pipe (310) when the first electric fan (210) is working, and a second pumping component (330b) for pumping water at the other end of the heat dissipation pipe (310) into the heat exchanger (320) when the second electric fan (220) is rotating.

5. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 4, characterized in that: A first water conduit (310a) extending from the top of the box cover (120) is provided at the top of one end of the heat dissipation pipe (310); The first pumping assembly (330a) comprises a first pumping pipe (330a-1) having one end connected to the output end of the heat exchanger (320) and the other end connected to the first water conduit (310a), a first auger (330a-2) located in the first pumping pipe (330a-1), a first pulley (330a-3) connected to the side wall of the first auger (330a-2) via a rotating shaft, and a second pulley (330a-4) having one end connected to the side wall of the first electric fan (210) via a rotating shaft and connected to the first pulley (330a-3) via a belt.

6. The protective box for automotive power battery with a high-efficiency heat conduction and cooling structure according to claim 4, characterized in that: The second water pumping assembly (330b) comprises a second water pumping pipe (330b-1) having an open bottom structure and a bottom extending to the other end of the heat dissipation pipe (310), a second auger (330b-2) located in the second water pipe (330b-11), a third pulley (330b-3) connected to the side wall of the second auger (330b-2) via a rotating shaft, and a bevel gear set (330b-4) having one end connected to the side wall of the second electric fan (220) via a rotating shaft and the other end connected to a fourth pulley (330b-41), the fourth pulley (330b-41) being connected to the third pulley (330b-3) via a belt, and a second water pipe (330b-11) having the other end connected to the input end of the heat exchanger (320) is provided on the top side wall of the second water pipe (330b-11).

7. The protective box for automotive power battery with a high-efficiency heat conduction and cooling structure according to claim 6, characterized in that: A first scraper (330b-42) is provided on the rotating shaft connected to the side wall of the bevel gear set (330b-4) and the second electric fan (220), the side wall of which is in contact with the outer side wall of the filter plate (110c) of the side wall of the air outlet slot (110b).

8. The protective box for automotive power battery with a high-efficiency heat conduction and cooling structure according to claim 5, characterized in that: The dirt removal mechanism (400) comprises a reciprocating screw (410) mounted on the side wall of the box body (110) and having opposite lines at both ends, a limiting slide bar (420) mounted on the side wall of the box body (110), two second dirt scraping plates (430) one end of which is threadedly sleeved on both ends of the reciprocating screw (410) and the other end of which is slidably sleeved on the limiting slide bar (420), and a transmission component (440) one end of which is transmission-connected to the reciprocating screw (410) and the other end of which is transmission-connected to the first pumping component (330a).

9. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 8, characterized in that: The transmission assembly (440) comprises a fifth pulley (440a) connected to the reciprocating screw (410) via a rotating shaft, and a transmission rod (440b) extending into the first water conduit (310a) and having a spiral blade (440b-1) at the bottom and a sixth pulley (440b-2) at the top, wherein the sixth pulley (440b-2) is connected to the fifth pulley (440a) via a belt.

10. The protective box for automotive power batteries with a high-efficiency heat conduction and cooling structure according to claim 3, characterized in that: The heat-conducting buffer mechanism (500) further comprises a first heat-conducting plate (510) located below the box cover (120) and having an elastic telescopic rod (510a) disposed on the top thereof, and a plurality of elastic heat-conducting members (520) located on the top of the first heat-conducting plate (510), wherein the top of the elastic telescopic rod (510a) is connected to the top of the inner wall of the box cover (120); The bottom of the heat dissipation pipe (310) is provided with a second heat conducting plate (310b) whose bottom is connected to the tops of the plurality of elastic heat conducting members (520).

Images