A battery pack heater for new energy vehicles

Abstract

The present invention relates to the technical field of new energy vehicle battery, and specifically relates to a battery pack heater for new energy vehicles, which comprises a frame, and two groups of tracks fixedly connected to the frame. The battery pack heater further includes: a linear drive structure connected to the frame; a heat conduction and heat exchange structure connected to the linear drive structure; two groups of flipping water filtering structures connected to the heat conduction and heat exchange structure. Each flipping water filtering structure includes an outer shell body, the outer shell body is connected with a torsion reset part, the torsion reset part is connected with a rotating seat, an inner cavity is formed in the rotating seat, two groups of elastic telescopic rods are installed in the inner cavity, the elastic telescopic rods are connected with a blocking frame, the blocking frame is connected with a filtering module, and the rotating seat is connected with a hydraulic switch structure; a hot water diversion structure is fixedly connected to the two groups of outer shell bodies. By transferring the heat of hot water, the present invention can increase the temperature of the battery, and the flipping water filtering structure performs self-cleaning by pressurized water spraying, so as to extend the cleaning cycle of the filtering module and avoid frequent cleaning operations by personnel.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle batteries, and specifically to a heater for a new energy vehicle battery pack. Background Art

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as the power source. New energy vehicles include pure electric vehicles, range-extended electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, etc.

[0003] In the existing technology in the cold regions of the north, the battery of the new energy vehicle itself is used to heat itself. The battery can only be used normally after being preheated to a certain temperature. The technical drawback is that when the temperature is too low, the battery of the new energy vehicle cannot work normally or even cannot be charged due to low-temperature protection. Therefore, a special heater needs to be used to heat the battery. In the existing technology, new energy vehicles are equipped with a water and electricity heater, which heats the vehicle's air conditioning system or the whole vehicle through the method of water and electricity heating. However, this technology is not combined with the battery heating technology of new energy vehicles, resulting in the existing technology often using a single electric heating method to increase the temperature of the battery. However, the electric energy consumed by this battery preheating causes the new energy vehicle to consume electricity at low temperatures, further exacerbating the power consumption. The technical difficulty of combining direct electric heating with a water and electricity heater is that during the long-term use of the water and electricity heater, due to the inevitable doping of impurities in the water body, once the water and electricity heater is used to heat the battery, it is necessary to frequently clean the heat exchange structure attached to the battery, which additionally increases the workload of the vehicle owner. Summary of the Invention

[0004] The purpose of the present invention is to provide a heater for a new energy vehicle battery pack to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A heater for a new energy vehicle battery pack includes a frame, and two sets of tracks are fixedly connected to the frame. It further includes:

[0007] A linear drive structure connected to the frame;

[0008] A heat conduction and heat exchange structure connected to the linear drive structure, and the heat conduction and heat exchange structure is connected to the track;

[0009] Two groups of flipping water filtering structures connected to the heat conduction and heat exchange structure. The flipping water filtering structure includes a housing connected to the heat conduction and heat exchange structure. The housing is connected with a torsion reset part. The torsion reset part is connected with a rotating seat rotatably installed in the housing. An inner cavity is provided in the rotating seat. Two groups of elastic telescopic rods are installed in the inner cavity. The moving end of the elastic telescopic rod is fixedly connected with a blocking frame. The blocking frame is fixedly connected with a filtering module. The filtering module is fixedly connected with an impact block. The rotating seat is connected with a hydraulic switch structure. The hydraulic switch structure is movably connected with the housing. A dust discharging notch is provided at the lower part of the housing. A water pipe is connected to the top of the housing. The water pipe is fixedly connected with a control valve. The control valve is threadedly connected with a high-pressure water bottle;

[0010] A hot water diversion structure is fixedly connected to the two groups of housings together.

[0011] As a further improvement scheme of the present invention: The linear driving structure includes a double-output shaft motor fixedly connected to the frame. The output end of the double-output shaft motor is fixedly connected with a gear. The gear is meshed with a rack connected to the heat conduction and heat exchange structure.

[0012] As a further improvement scheme of the present invention: The heat conduction and heat exchange structure includes a box body fixedly connected to the rack. An opening is provided at the top of the box body. The box body is rotatably connected with multiple groups of rollers installed in the track. An electric heating rod is fixedly installed in the box body. A temperature sensor is fixedly installed in the box body. A cover body is fixedly installed at the top of the box body. Two groups of elastic gaskets are fixedly installed in the cover body. The two groups of elastic gaskets are fixedly connected with a heat conduction frame together. The heat conduction frame is slidably connected with the cover body. One end of the heat conduction frame extends into the box body. The box body is fixedly connected with multiple groups of branch pipes. The multiple groups of branch pipes are fixedly connected with a confluence cover together. The confluence cover is fixedly connected with the housing.

[0013] As a further improvement scheme of the present invention: The torsion reset part includes a rotating frame rotatably connected to the housing. The rotating frame is coaxially and fixedly connected with the rotating seat. The rotating frame is fixedly connected with a first electromagnet. The rotating frame is fixedly connected with a spring. The end of the spring away from the rotating frame is fixedly connected with a pressure sensor. The pressure sensor is fixedly connected with the housing. A second electromagnet magnetically coupled with the first electromagnet is fixedly installed in the housing.

[0014] As a further improvement scheme of the present invention: The filtering module includes a mounting frame fixedly connected to the blocking frame. The mounting frame is movably connected with a filter screen. The mounting frame is detachably connected with a cover frame. The cover frame abuts against the filter screen. The mounting frame is fixedly connected with the impact block.

[0015] As a further improvement of the present invention: The hydraulic switch structure includes a bent hydraulic cavity opened in the outer shell body. An extrusion head adapted to the impact block is slidably installed in the bent hydraulic cavity. A return spring is installed in the bent hydraulic cavity. The return spring is fixedly connected to a plug frame slidably installed in the bent hydraulic cavity. The plug frame is fixedly connected to a sphere, and the sphere is movably connected to the outer shell body.

[0016] As a further improvement of the present invention: The hot water diversion structure includes a diversion cover fixedly connected to the outer shell body. The diversion cover is fixedly connected to a branch water pipe. The branch water pipe is fixedly connected to a first hot water pipe. The first hot water pipe is fixedly connected to a reversing valve. The reversing valve is fixedly connected to a second hot water pipe. The reversing valve is fixedly connected to a third hot water pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] During use, the frame is installed at the bottom of the vehicle. The hot water diversion structure is connected to the vehicle's water and electricity heating system. When it is necessary to heat the battery at the bottom of the vehicle, the linear drive structure drives the heat conduction and heat exchange structure to move along the track, so that the heat conduction and heat exchange structure moves to the lower side of the battery at the bottom of the vehicle and abuts against the battery. At this time, the hot water discharged from the vehicle's water and electricity heating system flows into the inner cavity through the hot water diversion structure. The filtration module filters the hot water. Then the hot water enters the heat conduction and heat exchange structure through the inner cavity to heat the battery. When the filtration module is blocked by dirt, under the pressure of the hot water, the pressure on the filtration module increases. At this time, the filtration module drives the impact block to trigger the hydraulic switch structure, so that the hydraulic switch structure is separated from the outer shell body. Driven by the torsion reset part, the rotating seat rotates, so that the filtration module faces the ash discharge slot. Then the control valve is opened, and the high-pressure water flow sprayed by the high-pressure water bottle sprays onto the filtration module to dredge the filtration module. Then the torsion reset part drives the rotating seat to reset, so as to extend the cleaning cycle of the filtration module. Through the cooperation of the hot water diversion structure, the heat conduction and heat exchange structure, the linear drive structure, and the flip water filtration structure, the present invention transfers the heat of the hot water to increase the temperature of the battery. And the flip water filtration structure performs self-cleaning by pressurized water spraying, thereby extending the cleaning cycle of the filtration module and avoiding frequent cleaning operations by personnel. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structure diagram of the present invention;

[0020] Figure 2 It is a structure diagram of the present invention;

[0021] Figure 3 It is a three-dimensional structure diagram of the flip water filtration structure of the present invention;

[0022] Figure 4Internal structure schematic diagram of the flip water filtering structure of the present invention;

[0023] Figure 5 Structural schematic diagram of the flip water filtering structure of the present invention;

[0024] Figure 6 For the present invention Figure 3 Partial enlarged schematic diagram at position A in;

[0025] Figure 7 Structural schematic diagram of the heat conduction and heat exchange structure of the present invention.

[0026] In the figure: 1, frame; 2, track; 3, linear drive structure; 4, heat conduction and heat exchange structure; 5, flip water filtering structure; 7, outer housing; 8, torsion reset part; 9, rotating seat; 10, inner cavity; 11, elastic telescopic rod; 12, blocking frame; 13, filter module; 14, impact block; 15, hydraulic switch structure; 16, ash discharge slot; 17, water pipe; 18, control valve; 19, high-pressure water bottle; 20, hot water diversion structure; 21, double-output shaft motor; 22, gear; 23, rack; 24, box body; 25, roller; 26, electric heating rod; 27, temperature sensor; 28, cover body; 29, elastic gasket; 30, heat conduction frame; 31, branch pipe; 32, confluence cover; 33, rotating frame; 34, first electromagnet; 35, pressure sensor; 36, second electromagnet; 37, mounting frame; 38, filter screen; 39, cover frame; 40, bent hydraulic cavity; 41, extrusion head; 42, plug frame; 43, sphere; 44, diversion cover; 45, branch water pipe; 46, first hot water pipe; 47, reversing valve; 48, second hot water pipe; 49, third hot water pipe. Specific embodiments

[0027] The technical solutions of the present invention will be further described in detail below in conjunction with specific embodiments.

[0028] Example 1, referring to Figures 1 to 7 As shown, a new energy vehicle battery pack heater includes a frame 1, the frame 1 is fixedly connected with two groups of tracks 2, the two groups of tracks 2 are arranged in parallel, and further includes:

[0029] A linear drive structure 3 connected to the frame 1;

[0030] A heat conduction and heat exchange structure 4 connected to the linear drive structure 3, the heat conduction and heat exchange structure 4 is connected to the track 2;

[0031] Two groups of flip water filtering structures 5 connected to the heat conduction and heat exchange structure 4. The flip water filtering structure 5 includes a housing 7 connected to the heat conduction and heat exchange structure 4. The housing 7 is connected with a torsion reset part 8. The torsion reset part 8 is connected with a rotating seat 9 rotatably installed in the housing 7. An inner cavity 10 is formed in the rotating seat 9. Two groups of elastic telescopic rods 11 are installed in the inner cavity 10. The moving end of the elastic telescopic rod 11 is fixedly connected with a blocking frame 12. The blocking frame 12 is fixedly connected with a filtering module 13. The filtering module 13 is fixedly connected with an impact block 14. The rotating seat 9 is connected with a hydraulic switch structure 15. The hydraulic switch structure 15 is movably connected with the housing 7. A dust discharge notch 16 is formed in the lower part of the housing 7. A water pipe 17 is connected to the top end of the housing 7. The water pipe 17 is fixedly connected with a control valve 18. The control valve 18 is threadedly connected with a high-pressure water bottle 19;

[0032] A hot water diversion structure 20 is fixedly connected to the two groups of housings 7 together.

[0033] During use, the frame 1 is installed at the bottom of the vehicle. The hot water diversion structure 20 is communicated with the vehicle's water and electricity heating system. When it is necessary to heat the battery at the bottom of the vehicle, the linear drive structure 3 drives the heat conduction and heat exchange structure 4 to move along the track 2, so that the heat conduction and heat exchange structure 4 moves below the battery at the bottom of the vehicle and abuts against the battery. At this time, the hot water discharged from the vehicle's water and electricity heating system flows into the inner cavity 10 through the hot water diversion structure 20. The filtering module 13 filters the hot water. Then the hot water enters the heat conduction and heat exchange structure 4 through the inner cavity 10 to heat the battery. When the filtering module 13 is blocked by dirt, under the pressure of the hot water, the pressure on the filtering module 13 increases. At this time, the filtering module 13 drives the impact block 14 to trigger the hydraulic switch structure 15, so that the hydraulic switch structure 15 is separated from the housing 7. Driven by the torsion reset part 8, the rotating seat 9 rotates, so that the filtering module 13 faces the dust discharge notch 16. Then the control valve 18 is opened, and the high-pressure water flow sprayed by the high-pressure water bottle 19 sprays onto the filtering module 13 to dredge the filtering module 13. Then the torsion reset part 8 drives the rotating seat 9 to reset, so as to extend the cleaning cycle of the filtering module 13. Through the cooperation of the hot water diversion structure 20, the heat conduction and heat exchange structure 4, the linear drive structure 3, and the flip water filtering structure 5, the present invention improves the temperature of the battery by transferring the heat of the hot water. And the flip water filtering structure 5 performs self-cleaning by pressurized water spraying, so as to extend the cleaning cycle of the filtering module 13 and avoid frequent cleaning operations by personnel.

[0034] In a case of this embodiment, the linear drive structure 3 includes a double-output shaft motor 21 fixedly connected to the frame 1. The output end of the double-output shaft motor 21 is fixedly connected with a gear 22. The gear 22 is meshed with a rack 23 connected to the heat conduction and heat exchange structure 4. The double-output shaft motor 21 drives the gear 22 to rotate. The rotating gear 22 drives the rack 23 to move. The rack 23 drives the heat conduction and heat exchange structure 4 to move. As the heat conduction and heat exchange structure 4 moves away from the battery, it is convenient to perform heat dissipation operations when the battery is at a high temperature.

[0035] In a case of this embodiment, the heat conduction and heat exchange structure 4 includes a box body 24 fixedly connected to the rack 23. An opening is formed at the top of the box body 24. The box body 24 is rotatably connected with a plurality of groups of rollers 25 installed in the track 2. An electric heating rod 26 is fixedly installed in the box body 24. A temperature sensor 27 is fixedly installed in the box body 24. A cover body 28 is fixedly installed at the top of the box body 24. Two groups of elastic gaskets 29 are fixedly installed in the cover body 28. The two groups of elastic gaskets 29 are commonly fixedly connected with a heat conduction frame 30. The heat conduction frame 30 is slidably connected with the cover body 28. One end of the heat conduction frame 30 extends into the box body 24. The box body 24 is fixedly connected with a plurality of groups of branch pipes 31. The plurality of groups of branch pipes 31 are commonly fixedly connected with a confluence cover 32. Each group of branch pipes 31 is externally connected to the water and electric heating system of the vehicle through a hose to ensure the water flow returns. The confluence cover 32 is fixedly connected with the outer shell 7. A heat conduction solvent is filled in the space surrounded by the branch pipes 31, the box body 24, the cover body 28, and the heat conduction frame 30. The filtered hot water enters each group of branch pipes 31 through the confluence cover 32. The heat of the hot water is guided to the heat conduction frame 30 through the heat conduction solvent in the box body 24, so that the heat conduction frame 30 heats the battery in contact with the heat conduction frame 30. And when the heating effect of the hot water is low, the heating effect of the present invention on the battery is improved by actively heating the heat conduction solvent through the electric heating rod 26. The rack 23 moves the heat conduction and heat exchange structure 4 by driving the box body 24 to move. During this period, the rollers 25 roll in the track 2. Due to the setting of the elastic gaskets 29, the tightness of the contact between the heat conduction frame 30 and the battery is ensured under the support of the elastic gaskets 29.

[0036] In a case of this embodiment, the torsion reset portion 8 includes a rotating frame 33 rotatably connected to the outer housing 7. The rotating frame 33 is coaxially and fixedly connected to the rotating seat 9. The rotating frame 33 is fixedly connected with a first electromagnet 34. The rotating frame 33 is fixedly connected with a spring. One end of the spring away from the rotating frame 33 is fixedly connected with a pressure sensor 35. The pressure sensor 35 is fixedly connected to the outer housing 7. A second electromagnet 36 magnetically coupled to the first electromagnet 34 is fixedly installed in the outer housing 7. The spring is used to drive the rotation of the rotating frame 33. The pressure sensor 35 judges the rotation angle of the rotating frame 33 by measuring the pressure fed back by the spring. By the mutual magnetic attraction of the first electromagnet 34 and the second electromagnet 36, the first electromagnet 34 drives the rotation of the rotating frame 33, and the rotating frame 33 drives the rotating seat 9 to perform a reset rotation.

[0037] In a case of this embodiment, the filtering module 13 includes a mounting frame 37 fixedly connected to the blocking frame 12. The mounting frame 37 is movably connected with a filter screen 38. The mounting frame 37 is detachably connected with a cover frame 39. The cover frame 39 abuts against the filter screen 38. The mounting frame 37 is fixedly connected with the impact block 14. By detaching the cover frame 39, it is convenient for personnel to detach the filter screen 38 for replacement operation.

[0038] In a case of this embodiment, the hydraulic switch structure 15 includes a bent hydraulic cavity 40 opened in the outer housing 7. An extrusion head 41 adapted to the impact block 14 is slidably installed in the bent hydraulic cavity 40. A reset spring is installed in the bent hydraulic cavity 40. The reset spring is fixedly connected with a plug frame 42 slidably installed in the bent hydraulic cavity 40. The plug frame 42 is fixedly connected with a sphere 43. The sphere 43 is movably connected to the outer housing 7. When the impact block 14 presses the extrusion head 41, the extrusion head 41 presses the hydraulic oil in the bent hydraulic cavity 40. The hydraulic oil presses the plug frame 42, and the plug frame 42 drives the sphere 43 to disengage from the outer housing 7.

[0039] Embodiment 2, on the basis of Embodiment 1, refer to Figure 1 and Figure 2, the hot water diversion structure 20 includes a shunt cover 44 fixedly connected to the outer housing 7. The shunt cover 44 is fixedly connected to a branch water pipe 45, the branch water pipe 45 is fixedly connected to a first hot water pipe 46, the first hot water pipe 46 is fixedly connected to a reversing valve 47, the reversing valve 47 is fixedly connected to a second hot water pipe 48, and the reversing valve 47 is fixedly connected to a third hot water pipe 49. The third hot water pipe 49 is used to connect to the pipeline of the vehicle's water and electricity heating system. When the third hot water pipe 49 is connected to the second hot water pipe 48 through the reversing valve 47, normal water circulation of the vehicle's water and electricity heating system is carried out. When the third hot water pipe 49 is connected to the first hot water pipe 46 through the reversing valve 47, hot water enters the branch water pipe 45 along the first hot water pipe 46, and then the hot water enters the outer housing 7 through the shunt cover 44, so that the hot water of the water and electricity heating system flows through the branch pipe 31 to perform auxiliary heating operation on the battery.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A new energy vehicle battery pack heater, comprising a frame, the frame being fixedly connected with two sets of rails, characterized in that: Also includes: A linear drive structure connected to the frame; A heat-conducting and heat-exchanging structure connected to the linear drive structure, wherein the heat-conducting and heat-exchanging structure is connected to the track; Two groups of flip water filtering structures connected to the heat-conducting and heat-exchanging structures, the flip water filtering structures include an outer shell connected to the heat-conducting and heat-exchanging structures, the outer shell is connected to a torque reset part, the torque reset part is connected to a rotating seat rotatably installed in the outer shell, an inner cavity is provided in the rotating seat, two groups of elastic telescopic rods are installed in the inner cavity, the movable ends of the elastic telescopic rods are fixedly connected to a baffle, the baffle is fixedly connected to a filter module, the filter module is fixedly connected to an impact block, the rotating seat is connected to a hydraulic switch structure, the hydraulic switch structure is movably connected to the outer shell, an ash discharge notch is provided at the lower part of the outer shell, a water pipe is connected to the top of the outer shell, the water pipe is fixedly connected to a control valve, and the control valve is threadedly connected to a high-pressure water bottle; A hot water guide structure is fixedly connected to the two sets of outer shells.

2. A new energy vehicle battery pack heater according to claim 1, characterized in that: The linear drive structure comprises a double-output shaft motor fixedly connected to the frame, the output end of the double-output shaft motor is fixedly connected to a gear, and the gear is meshingly connected to a rack connected to the heat conduction and heat exchange structure.

3. A new energy vehicle battery pack heater according to claim 2, characterized in that: The heat-conducting and heat-exchanging structure includes a box body fixedly connected to a rack, an opening is provided on the top of the box body, a plurality of groups of rollers installed in a track are rotatably connected to the box body, an electric heating rod is fixedly installed in the box body, a temperature sensor is fixedly installed in the box body, a cover body is fixedly installed on the top of the box body, two groups of elastic gaskets are fixedly installed in the cover body, the two groups of elastic gaskets are commonly fixedly connected to a heat-conducting frame, the heat-conducting frame is slidably connected to the cover body, one end of the heat-conducting frame extends into the box body, a plurality of groups of branch pipes are fixedly connected to the box body, the plurality of groups of branch pipes are commonly fixedly connected to a collector cover, and the collector cover is fixedly connected to the outer shell.

4. The new energy vehicle battery pack heater according to claim 1, characterized in that: The torque reset part includes a rotating frame rotatably connected to the outer shell, the rotating frame is coaxially fixedly connected to the rotating seat, the rotating frame is fixedly connected to a first electromagnet, the rotating frame is fixedly connected to a spring, the spring is fixedly connected to a pressure sensor at one end away from the rotating frame, the pressure sensor is fixedly connected to the outer shell, and a second electromagnet magnetically coupled to the first electromagnet is fixedly installed in the outer shell.

5. The new energy vehicle battery pack heater according to claim 1, characterized in that: The filter module comprises a mounting frame fixedly connected to the retaining frame, the mounting frame is movably connected to a filter screen, the mounting frame is detachably connected to a cover frame, the cover frame abuts against the filter screen, and the mounting frame is fixedly connected to the impact block.

6. The new energy vehicle battery pack heater according to claim 1, characterized in that: The hydraulic switch structure includes a bending hydraulic cavity opened in an outer shell, an extrusion head adapted to the impact block is slidably installed in the bending hydraulic cavity, a return spring is installed in the bending hydraulic cavity, the return spring is fixedly connected to a plug rack slidably installed in the bending hydraulic cavity, the plug rack is fixedly connected to a ball, and the ball is movably connected to the outer shell.

7. The new energy vehicle battery pack heater according to claim 1, characterized in that: The hot water diversion structure includes a diverter cover fixedly connected to the outer shell, the diverter cover is fixedly connected to a branch water pipe, the branch water pipe is fixedly connected to a first hot water pipe, the first hot water pipe is fixedly connected to a reversing valve, the reversing valve is fixedly connected to a second hot water pipe, and the reversing valve is fixedly connected to a third hot water pipe.

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