New energy automobile battery pack protection device

Abstract

The utility model relates to the technical field of battery packs, and discloses a new energy automobile battery pack protection device which comprises a protection box, a top cover is arranged at the top of the protection box, an installation mechanism is arranged in the protection box, a battery pack body is arranged at the top of the installation mechanism, and a heat dissipation mechanism is arranged on the outer side of the protection box and comprises a supporting frame. The supporting frame is fixedly connected to the bottom of the protection box. According to the new energy automobile battery pack protection device, dust filtered on a dustproof net can be brushed and cleaned through a heat dissipation mechanism and a cleaning brush, and meanwhile, a scraping block can further scrape impurities which cannot be brushed by the cleaning brush, so that it is guaranteed that heat in the protection box is better discharged out of the protection box; and outside air can be discharged into the protection box, so that the smoothness of ventilation and air exchange is improved, the heat dissipation effect cannot be influenced by excessive dust and impurity filtration, the risk that the battery pack body is damaged by dust is also reduced, and the purpose of stable protection is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, in particular to a protective device for a battery pack of a new energy vehicle. Background Art

[0002] Electric vehicle batteries are divided into two categories, storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, and ternary lithium batteries.

[0003] According to the description of an electric vehicle battery protection device disclosed on the patent website (authorization announcement number: CN 219419272U), "The utility model discloses an electric vehicle battery protection device, which relates to the technical field of battery boxes. The utility model includes a protection box, the inner wall of the protection box is fixedly connected with a partition, the surface of the partition is provided with a positioning assembly, the surface of the positioning assembly is provided with a battery body, the top of the protection box is provided with a clamping assembly for limiting the battery body, the bottom of the protection box is provided with a cooling assembly for cooling the battery body, the surface of the protection box is provided with heat dissipation holes, the front of the protection box is hinged with a closed door, the positioning assembly includes a positioning baffle, and the positioning baffle is fixedly connected to the top surface of the partition, and the specifications of the positioning baffle are adapted to the battery body, which achieves the effect of facilitating effective heat dissipation of the electric vehicle during use, avoids the accumulation of heat inside the protection device, thereby reducing the risk of spontaneous combustion and explosion of the battery, and is safer to use."

[0004] Based on the above, the applicant believes that there are the following defects:

[0005] During use, the electric vehicle battery protection device prevents heat from accumulating inside the protection device. However, the ventilation fan lacks a dust-proof function during ventilation, so dust may enter the interior of the vehicle battery during ventilation, affecting the normal operation of the internal components of the battery. However, if a dust-proof net is simply added, after long-term use, some dust and impurities will be filtered and accumulated on the dust-proof net. If the dust and impurities cannot be cleaned in time, the heat dissipation effect will be affected, which is inconvenient for staff to operate and use, reducing the practicability of the device. Utility Model Content

[0006] The purpose of the utility model is to provide a new energy vehicle battery pack protection device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new energy vehicle battery pack protection device, comprising a protection box, a top cover is arranged on the top of the protection box, a mounting mechanism is arranged inside the protection box, a battery pack body is arranged on the top of the mounting mechanism, and a heat dissipation mechanism is arranged on the outside of the protection box;

[0008] The heat dissipation mechanism includes a support frame, which is fixedly connected to the bottom of the protection box, and a motor 1 is fixedly connected to the top of the support frame. A support block is fixedly connected to the outside of the protection box, and two support blocks are provided. A worm 1 and a worm 2 are rotatably connected inside the two support blocks respectively. The outer wall of the worm 1 is provided with a belt structure, and the outer walls of the worm 1 and the worm 2 are both meshed with a worm gear 1. The inner ring of the worm gear 1 is fixedly connected to a connecting shaft, and the outer wall of the connecting shaft is fixedly connected to a fan blade. The outside of the protection box is fixedly connected to a ventilation duct, and the inner wall of the ventilation duct is fixedly connected to a support plate, the outer wall of one end of the connecting shaft is respectively fixedly connected to a scraper block and a cleaning brush, the inner wall of the ventilation duct is fixedly connected to a dustproof net, and the top of the support plate is fixedly connected to a connecting frame.

[0009] Preferably, the worm one is fixedly connected to the top of the motor one, and the worm one and the worm two are connected by a belt structure transmission, so that the worm one and the worm two can rotate synchronously.

[0010] Preferably, two connecting frames are provided, and the top ends of the worm one and the worm two are rotatably connected to the inside of the two connecting frames respectively, so as to provide stable support for the worm one and the worm two.

[0011] Preferably, two ventilation ducts are provided, and the worm gear 1 and the worm gear 2 respectively penetrate the bottom of the two ventilation ducts and rotate, so that the worm gear 1 and the worm gear 2 can transmit stably.

[0012] Preferably, the support plate and the dustproof net are provided with rotation holes inside, and the connecting shaft passes through the rotation holes and rotates, thereby providing stable support for the connecting shaft and ensuring better heat dissipation.

[0013] Preferably, two fan blades are provided, and the output directions of the two fan blades are consistent, so as to facilitate the purpose of air intake and exhaust inside the protective box.

[0014] Preferably, the mounting mechanism includes a second motor, which is fixedly connected to the front side of the protective box; a worm three is fixedly connected to the output end of the second motor; a worm gear two is meshed with the outer wall of the third worm; a threaded barrel is fixedly connected to the inner ring of the second worm gear; a threaded rod is threadedly connected to the inner wall of the threaded barrel; a connecting block is fixedly connected to the end of the threaded rod away from the threaded barrel; a clamping block is fixedly connected to the side of the connecting block away from the threaded rod; a connecting plate is fixedly connected to the bottom of the inner wall of the protective box; a plug block is fixedly connected to the bottom of the battery pack body; a socket is fixedly connected to the bottom of the inner wall of the protective box; a protrusion is fixedly connected to one side of the socket, so as to stabilize the positioning of the battery pack body.

[0015] Preferably, the plug-in block is plugged into the inner wall of the socket, and the card block passes through one side of the socket and moves, so that the card block can be stably inserted into the interior of the plug-in block.

[0016] Preferably, the connecting block is slidably connected to the outer side of the protrusion, and the protrusion is fixedly connected to one side of the connecting plate, thereby ensuring the stability of the movement of the connecting block.

[0017] Preferably, a bayonet is provided on one side of the plug block, and the card block is plugged into the inner wall of the bayonet, so that the bayonet and the card block cooperate with each other so that the plug block cannot be pulled out of the socket.

[0018] Preferably, the threaded barrel is rotatably connected to the inside of the connecting plate, and the threads on the inner walls at both ends of the threaded barrel are in opposite directions, so that the rotation of the threaded barrel can drive the threaded rod to move.

[0019] Preferably, the worm gear three passes through the front side of the protection box and rotates, and the rear end of the worm gear three is rotationally connected to the back side of the inner wall of the protection box, thereby providing stable support for the worm gear three.

[0020] Compared with the prior art, the utility model provides a new energy vehicle battery pack protection device, which has the following beneficial effects:

[0021] 1. The new energy vehicle battery pack protection device, through the heat dissipation mechanism, the cleaning brush can brush and clean the dust filtered on the dustproof net, and the scraper block can further scrape the impurities that the cleaning brush cannot remove, thereby ensuring that the heat inside the protection box is better discharged from the inside of the protection box, and the outside air can be discharged into the inside of the protection box, which improves the smoothness of ventilation and air exchange, does not affect the heat dissipation effect due to excessive filtering of dust and impurities, and also reduces the risk of the battery pack being damaged by dust, thereby achieving the purpose of stable protection.

[0022] 2. The new energy vehicle battery pack protection device realizes the positioning and installation of the battery pack body through the installation mechanism, and at the same time ensures that the battery pack body can be stably stored inside the protection box so that it will not easily shake or deviate, further improving the stability of the battery pack body protection and enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0024] Figure 1 This is a front view of the structure of the utility model;

[0025] Figure 2 This is a front sectional view of the structure of the utility model;

[0026] Figure 3 This is a bottom view of the structure of the utility model;

[0027] Figure 4 It is a structural schematic diagram of the battery pack body;

[0028] Figure 5 It is a partial structural schematic diagram of the heat dissipation mechanism;

[0029] Figure 6 It is a structural schematic diagram of the support frame;

[0030] Figure 7 for Figure 2 The enlarged structural diagram at A in the middle;

[0031] Figure 8 for Figure 2 The enlarged structural diagram at B in the middle;

[0032] Fig. 9 It is a structural schematic diagram of the connection block;

[0033] Fig.10 This is a schematic diagram of the structure of the dustproof net.

[0034] In the figure: 1. protective box; 2. top cover; 3. heat dissipation mechanism; 31. support frame; 32. motor 1; 33. worm 1; 34. worm 2; 35. belt structure; 36. support block; 37. ventilation duct; 38. worm gear 1; 39. support plate; 301. connecting frame; 302. connecting shaft; 303. fan blade; 304. scraper block; 305. cleaning brush; 306. dustproof net; 4. installation mechanism; 41. motor 2; 42. worm 3; 43. worm gear 2; 44. threaded barrel; 45. connecting plate; 46. threaded rod; 47. connecting block; 48. clamp block; 49. socket; 401. plug block; 402. bump; 5. battery pack body. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] The utility model provides the following technical solutions:

[0038] Embodiment 1

[0039] Combination Figures 1 to 10 A new energy vehicle battery pack protection device comprises a protection box 1, a top cover 2 is arranged on the top of the protection box 1, a mounting mechanism 4 is arranged inside the protection box 1, a battery pack body 5 is arranged on the top of the mounting mechanism 4, and a heat dissipation mechanism 3 is arranged on the outside of the protection box 1;

[0040] The heat dissipation mechanism 3 includes a support frame 31, which is fixedly connected to the bottom of the protective box 1, and a motor 32 is fixedly connected to the top of the support frame 31. A support block 36 is fixedly connected to the outside of the protective box 1. Two support blocks 36 are provided. A worm 1 33 and a worm 2 34 are rotatably connected inside the two support blocks 36. A belt structure 35 is provided on the outer wall of the worm 1 33. A worm gear 1 38 is meshed on the outer walls of the worm gear 1 33 and the worm 2 34. A connecting shaft 302 is fixedly connected to the inner ring of the worm gear 1 38, and a fan blade 303 is fixedly connected to the outer wall of the connecting shaft 302. A ventilation duct 37 is fixedly connected to the outside of the protective box 1, and a support plate 39 is fixedly connected to the inner wall of the ventilation duct 37. A scraper block 304 and a cleaning brush 305 are respectively fixedly connected to the outer wall of one end of the connecting shaft 302, and a dustproof net 306 is fixedly connected to the inner wall of the ventilation duct 37. The top of the support plate 39 is fixedly connected to the connecting frame 301.

[0041] Furthermore, the worm one 33 is fixedly connected to the top of the motor one 32, and the worm one 33 and the worm two 34 are connected by a belt structure 35, so that the worm one 33 and the worm two 34 can rotate synchronously.

[0042] Furthermore, two connecting frames 301 are provided, and the top ends of the worm 1 33 and the worm 2 34 are rotatably connected to the inside of the two connecting frames 301 respectively, so as to provide stable support for the worm 1 33 and the worm 2 34 .

[0043] Furthermore, two ventilation ducts 37 are provided, and the worm 1 33 and the worm 2 34 respectively penetrate the bottom of the two ventilation ducts 37 and rotate, so that the worm 1 33 and the worm 2 34 can stably transmit.

[0044] Furthermore, rotation holes are provided inside the support plate 39 and the dustproof net 306, and the connecting shaft 302 passes through the rotation holes and rotates, which provides stable support for the connecting shaft 302 and ensures better heat dissipation.

[0045] Furthermore, two fan blades 303 are provided, and the output directions of the two fan blades 303 are consistent, so as to facilitate the purpose of air intake and exhaust inside the protective box 1.

[0046] Embodiment 2

[0047] See also Figures 1 to 10On the basis of the first embodiment, the mounting mechanism 4 further comprises a motor 2 41, the motor 2 41 is fixedly connected to the front of the protection box 1, the output end of the motor 2 41 is fixedly connected to a worm 3 42, the outer wall of the worm 3 42 is meshed with a worm wheel 2 43, the inner ring of the worm wheel 2 43 is fixedly connected to a threaded barrel 44, the inner wall of the threaded barrel 44 is threadedly connected to a threaded rod 46, the end of the threaded rod 46 away from the threaded barrel 44 is fixedly connected to a connecting block 47, the side of the connecting block 47 away from the threaded rod 46 is fixedly connected to a clamping block 48, the bottom of the inner wall of the protection box 1 is fixedly connected to a connecting plate 45, the bottom of the inner wall of the protection box 1 is fixedly connected to an insert block 401, the bottom of the inner wall of the protection box 1 is fixedly connected to a socket 49, and one side of the socket 49 is fixedly connected to a protrusion 402, which serves the purpose of stabilizing the positioning of the battery pack body 5.

[0048] Furthermore, the plug-in block 401 is plugged into the inner wall of the socket 49 , and the card block 48 passes through one side of the socket 49 and moves, so that the card block 48 can be stably inserted into the interior of the plug-in block 401 .

[0049] Furthermore, the connection block 47 is slidably connected to the outer side of the protrusion 402 , and the protrusion 402 is fixedly connected to one side of the connection plate 45 , thereby ensuring the stability of the movement of the connection block 47 .

[0050] Furthermore, a bayonet is provided on one side of the plug block 401 , and the clamping block 48 is plugged into the inner wall of the bayonet, so that the bayonet and the clamping block 48 cooperate with each other, so that the plug block 401 cannot be pulled out of the socket 49 .

[0051] Furthermore, the threaded barrel 44 is rotatably connected to the inside of the connecting plate 45 , and the threads on the inner walls at both ends of the threaded barrel 44 are in opposite directions, so that the rotation of the threaded barrel 44 can drive the threaded rod 46 to move.

[0052] Furthermore, the worm gear three 42 penetrates the front side of the protection box 1 and rotates, and the rear end of the worm gear three 42 is rotationally connected to the back side of the inner wall of the protection box 1 , which provides stable support for the worm gear three 42 .

[0053] In actual operation, when the device is used, the staff can first open the top cover 2, place the battery pack body 5 inside the protective box 1, and ensure that the plug block 401 is inserted into the inside of the socket 49, and then start the motor 2 41 to work, so that the output end of the motor 2 41 can drive the worm 3 42 to rotate. Since the worm 3 42 and the worm wheel 2 43 are in a meshing relationship, the threaded barrel 44 will rotate, and since the inner wall threads at both ends of the threaded barrel 44 are in opposite directions, and the threaded rod 46 and the threaded barrel 44 are threadedly connected, the threaded rod 46 will extend from the inside of the threaded barrel 44 to push the connecting block 4 7 moves in the direction close to the socket 49, and during the movement of the connecting block 47, it can slide and limit on the outer side of the protrusion 402, so that the connecting block 47 can stably drive the card block 48 to be inserted into the inside of the plug block 401, so that the plug block 401 can be limited under the action of the card block 48, so that the plug block 401 cannot be moved out of the socket 49, thereby realizing the positioning and installation of the battery pack body 5, and at the same time ensuring that the battery pack body 5 can be stably stored in the protective box 1, so that it will not easily shake or deviate, further improving the stability of the protection of the battery pack body 5 and enhancing the practicability of the device.

[0054] When the battery pack body 5 needs to be cooled, the motor 1 32 can be started, and the output end of the motor 1 32 can drive the worm 1 33 to rotate, and the worm 1 33 drives the worm 2 34 to rotate through the transmission of the belt structure 35, so that the worm 1 33 and the worm 2 34 can rotate synchronously, and the worm 1 33 and the worm 2 34 will drive the corresponding worm wheel 1 38 to rotate, and the worm wheel 1 38 drives the connecting shaft 302 to rotate, and the connecting shaft 302 drives the fan blade 303 to rotate. Since the output directions of the two fan blades 303 are consistent, the purposes of air intake and exhaust can be achieved on both sides of the protection box 1, thereby accelerating the speed of air circulation inside the protection box 1 and ensuring the stability of heat dissipation. At the same time, while the connecting shaft 302 drives the fan blades 303 to rotate and dissipate heat, the connecting shaft 302 will also drive the cleaning brush 305 and the scraper block 304 to make circular motion along the axis point of the connecting shaft 302. The cleaning brush 305 can brush and clean the dust filtered on the dustproof net 306, and the scraper block 304 can further scrape away the impurities that the cleaning brush 305 cannot brush away, thereby ensuring that the heat inside the protective box 1 is better discharged, and the outside air can be discharged into the interior of the protective box 1, thereby improving the smoothness of ventilation and air exchange, and will not affect the heat dissipation effect due to excessive filtering of dust and impurities, and also reduce the risk of the battery pack body 5 being damaged by dust, thereby achieving the purpose of stable protection.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A new energy vehicle battery pack protection device, comprising a protection box (1), characterized in that: The top of the protection box (1) is provided with a top cover (2), the interior of the protection box (1) is provided with a mounting mechanism (4), the top of the mounting mechanism (4) is provided with a battery pack body (5), and the outside of the protection box (1) is provided with a heat dissipation mechanism (3); The heat dissipation mechanism (3) comprises a support frame (31), the support frame (31) is fixedly connected to the bottom of the protection box (1), the top of the support frame (31) is fixedly connected to a motor 1 (32), the outer side of the protection box (1) is fixedly connected to a support block (36), two support blocks (36) are provided, and a worm 1 (33) and a worm 2 (34) are rotatably connected inside the two support blocks (36), the outer wall of the worm 1 (33) is provided with a belt structure (35), and the outer walls of the worm 1 (33) and the worm 2 (34) are both meshed with a worm wheel 1 (38), the inner ring of the worm gear (38) is fixedly connected to a connecting shaft (302), the outer wall of the connecting shaft (302) is fixedly connected to a fan blade (303), the outer side of the protective box (1) is fixedly connected to a ventilation duct (37), the inner wall of the ventilation duct (37) is fixedly connected to a support plate (39), the outer wall of one end of the connecting shaft (302) is respectively fixedly connected to a scraper block (304) and a cleaning brush (305), the inner wall of the ventilation duct (37) is fixedly connected to a dustproof net (306), and the top of the support plate (39) is fixedly connected to a connecting frame (301).

2. A new energy vehicle battery pack protection device according to claim 1, characterized in that: The worm gear one (33) is fixedly connected to the top of the motor one (32), and the worm gear one (33) and the worm gear two (34) are connected by a belt structure (35).

3. A new energy vehicle battery pack protection device according to claim 1, characterized in that: The connecting frames (301) are provided with two, and the top ends of the worm gear 1 (33) and the worm gear 2 (34) are rotatably connected to the inside of the two connecting frames (301) respectively.

4. A new energy vehicle battery pack protection device according to claim 1, characterized in that: Two ventilation passages (37) are provided, and the worm gear 1 (33) and the worm gear 2 (34) respectively penetrate the bottom of the two ventilation passages (37) and rotate.

5. The new energy vehicle battery pack protection device according to claim 1, characterized in that: The support plate (39) and the dustproof net (306) are both provided with rotation holes, and the connecting shaft (302) passes through the rotation holes and rotates. Two fan blades (303) are provided, and the output directions of the two fan blades (303) are consistent.

6. A new energy vehicle battery pack protection device according to claim 1, characterized in that: The mounting mechanism (4) comprises a second motor (41), wherein the second motor (41) is fixedly connected to the front face of the protection box (1), the output end of the second motor (41) is fixedly connected to a third worm (42), the outer wall of the third worm (42) is meshed with a second worm wheel (43), the inner ring of the second worm wheel (43) is fixedly connected to a threaded barrel (44), the inner wall of the threaded barrel (44) is threadedly connected to a threaded rod (46), the end of the threaded rod (46) away from the threaded barrel (44) is fixedly connected to a connecting block (47), the side of the connecting block (47) away from the threaded rod (46) is fixedly connected to a clamping block (48), the bottom of the inner wall of the protection box (1) is fixedly connected to a connecting plate (45), the bottom of the battery pack body (5) is fixedly connected to an inserting block (401), the bottom of the inner wall of the protection box (1) is fixedly connected to a socket (49), and one side of the socket (49) is fixedly connected to a protrusion (402).

7. A new energy vehicle battery pack protection device according to claim 6, characterized in that: The insert block (401) is inserted into the inner wall of the socket (49), and the clamp block (48) penetrates one side of the socket (49) and moves.

8. A new energy vehicle battery pack protection device according to claim 6, characterized in that: The connecting block (47) is slidably connected to the outside of the protrusion (402), and the protrusion (402) is fixedly connected to one side of the connecting plate (45).

9. A new energy vehicle battery pack protection device according to claim 6, characterized in that: A bayonet is provided on one side of the insert block (401), the bayonet block (48) is inserted into the inner wall of the bayonet, the threaded barrel (44) is rotatably connected to the inside of the connecting plate (45), and the inner walls at both ends of the threaded barrel (44) have threads in opposite directions.

10. A new energy vehicle battery pack protection device according to claim 6, characterized in that: The worm gear three (42) penetrates the front side of the protection box (1) and rotates, and the rear end of the worm gear three (42) is rotationally connected to the back side of the inner wall of the protection box (1).

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