A cleaning device for a plate heat exchanger used in a new energy vehicle

Abstract

The present invention discloses a cleaning device for a plate heat exchanger used in new energy vehicles, which relates to the technical field of new energy vehicles. It includes two fixed plate bodies arranged in parallel, and a heat exchange plate group is laminated and clamped between the two fixed plate bodies. A cleaning mechanism for automatically cleaning the dirt on its surface is provided outside the heat exchange plate group; the cleaning mechanism includes a first cleaning member, a first reciprocating member, a second cleaning member, a second reciprocating member, a linkage mechanism and a transmission mechanism. Through the mutual cooperation of the designed first cleaning member, first reciprocating member, second cleaning member, second reciprocating member, linkage mechanism and transmission mechanism, the present invention can automatically clean the dirt on the left, right, upper and lower four surfaces of the heat exchange plate group, ensure the accuracy and simultaneity of cleaning in all directions, and has a fast cleaning speed and high efficiency, thus ensuring the heat exchange effect of the heat exchange plate.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicles, and in particular to a cleaning device for a plate heat exchanger for a new energy vehicle. Background Art

[0002] At present, new energy vehicles are developing rapidly. Vehicle thermal management is a difficult problem for new energy vehicles. When performing vehicle thermal management, it is also necessary to consider the energy consumption of the vehicle. In order to achieve maximum endurance while ensuring safety, the plate heat exchanger assembly structure is an indispensable part of the thermal management system of new energy vehicles.

[0003] During the long-term use of the plate heat exchanger, condensation and other dirt will adhere to the surface of the plate heat exchanger. In order to extend the service life of the plate heat exchanger, it is necessary to perform regular maintenance on the plate heat exchanger. Cleaning the surface of the plate heat exchanger is one of the important steps in the maintenance process. At present, the external surface of the plate heat exchanger is cleaned manually by workers holding a cleaning brush. However, manual cleaning still has the problem of large labor force and affects the cleaning efficiency. To this end, we propose a cleaning device for plate heat exchangers for new energy vehicles. Summary of the invention

[0004] The object of the present invention is to provide a cleaning device for a plate heat exchanger for new energy vehicles with a self-cleaning function, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a cleaning device for a plate heat exchanger for a new energy vehicle, comprising two fixed plates arranged in parallel, a heat exchange plate group being overlapped and clamped between the two fixed plates, and a cleaning mechanism for automatically cleaning dirt on the surface of the heat exchange plate group is provided on the outer side of the heat exchange plate group; the cleaning mechanism comprises a first cleaning member, a first reciprocating member, a second cleaning member, a second reciprocating member, a linkage mechanism and a transmission mechanism, the first cleaning member and the second cleaning member are each provided with two groups, the two groups of the first cleaning members are respectively arranged on the left and right sides of the heat exchange plate group, the two groups of the second cleaning members are respectively arranged on the upper and lower sides of the heat exchange plate group, the first reciprocating member is installed on the top and bottom of the first cleaning member, the first reciprocating member is installed on the front and rear sides of the second cleaning member, the first reciprocating member and the second reciprocating member are transmission-connected through the linkage mechanism, and the transmission mechanism is installed on one side of one of the fixed plates.

[0006] Preferably, the first cleaning member includes a first brush, a first fixing rod, and a limiting member. The first brush is respectively attached to the left and right outer side walls of the heat exchange plate group. Both the upper and lower ends of the first brush are drivingly connected to the output end of the first reciprocating member through the first fixing rod. The limiting member is arranged between the two fixing plate bodies. The first reciprocating member controls the first brush located on the left and right sides of the heat exchange plate group to perform reciprocating back-and-forth movements, automatically cleaning the left and right sides of the heat exchange plate group.

[0007] Preferably, the first reciprocating member includes a first moving frame, a first half gear, a first rack, and a first rotating shaft. The first moving frame is fixedly connected to the first brush through the first fixing rod. The first rack is evenly distributed at the upper and lower positions inside the first moving frame. The first half gear is meshingly connected to the first moving frame through the first rack. A first rotating shaft is fixed in the central hole of the first half gear. The input end of the linkage mechanism is drivingly connected to the first rotating shaft. There are two first rotating shafts symmetrically distributed up and down, and one side of the two first rotating shafts is drivingly connected through the transmission mechanism. By the rotation of the first half gear, the first rack drives the first moving frame to move back and forth, thereby driving the first brush connected to the first moving frame to perform reciprocating movements on the surface of the heat exchange plate group.

[0008] Preferably, the second cleaning member includes a second brush and a second fixing rod. The second brush is respectively attached to the upper and lower end outer side walls of the heat exchange plate group. Both the front and rear ends of the second brush are drivingly connected to the output end of the second reciprocating member through the second fixing rod. Sliding grooves are formed on the upper and lower sides of the fixing plate body. The second fixing rod is slidably connected to the fixing plate body through the sliding grooves. The second reciprocating member controls the second brush located on the upper and lower sides of the heat exchange plate group to perform reciprocating back-and-forth movements, automatically cleaning the upper and lower sides of the heat exchange plate group.

[0009] Preferably, the second reciprocating member includes a second moving frame, a second half gear, a second rack, and a second rotating shaft. The second moving frame is fixedly connected to the second brush through the second fixing rod. The second rack is evenly distributed at the upper and lower positions inside the second moving frame. The second half gear is meshingly connected to the second moving frame through the second rack. A second rotating shaft is fixed in the central hole of the second half gear. The output end of the linkage mechanism is drivingly connected to the second rotating shaft. The outer side of the second rotating shaft is rotatably connected to an L-shaped plate through a bearing. One end of the L-shaped plate is fixed on the fixing plate body. By the rotation of the second half gear, the second rack drives the second moving frame to move back and forth, thereby driving the second brush connected to the second moving frame to perform reciprocating movements on the surface of the heat exchange plate group.

[0010] Preferably, the linkage mechanism includes a driving bevel gear, a passive bevel gear, a third rotating shaft, a driving pulley, a belt and a driven pulley, the passive bevel gear and the driving pulley are both fixedly sleeved on the outside of the third rotating shaft, the driving bevel gear and the passive bevel gear are meshingly connected, the driving pulley is transmission-connected to the driven pulley through the belt, the driven pulley is fixedly sleeved on the outside of the second rotating shaft, a U-shaped plate is fixed on the L-shaped plate, the middle part of the U-shaped plate is rotatably connected to the third rotating shaft through a bearing, and the first rotating shaft and the second rotating shaft can be driven to rotate at the same time through the linkage mechanism.

[0011] Preferably, the transmission mechanism includes a driving motor, a motor fixing frame, a driving shaft, a U-shaped seat, a driving gear, a transmission gear and a synchronous belt. The driving motor is fixed to one side of one of the fixed plates through the motor fixing frame, the driving shaft is fixedly connected to the output end of the driving motor, the U-shaped seat is rotatably connected to the outside of the driving shaft through a bearing, one end of the U-shaped seat is fixed to the outer wall of the fixed plate, the driving gear is fixed to the end of the driving shaft away from the driving motor, and a transmission gear is fixed to one end of the two first rotating shafts, and the two transmission gears are meshed and connected with the driving gear through the synchronous belt, and the transmission mechanism can provide power for the rotation of the first rotating shaft.

[0012] Preferably, the limiting member includes a sliding sleeve, a fixed block, a spring, a sliding rod and a limiting block, the sliding rod is fixed between the two fixed plates through the limiting block, the sliding sleeve is slidably sleeved on the outer side of the sliding rod, the sliding sleeve is fixedly connected to the first brush through the fixed block, the spring is provided with two groups, and the two ends of the two groups of springs are respectively fixedly connected to the sliding sleeve and the limiting block, the sliding rod is provided on the inner side of the spring, and the reciprocating motion of the first brush can be made more stable through the limiting member.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention can automatically clean the dirt on the four surfaces of the heat exchange plate group, the left, right, upper and lower surfaces, by using the designed first cleaning member, the first reciprocating member, the second cleaning member, the second reciprocating member, the linkage mechanism and the transmission mechanism in coordination with each other, thereby ensuring the accuracy and simultaneity of cleaning in all directions, and the cleaning speed is fast and the efficiency is high, thereby ensuring the heat exchange effect of the heat exchange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the cleaning mechanism structure of the present invention;

[0017] Figure 3 Left view of the overall structure of the present invention;

[0018] Figure 4 Top view of the overall structure of the present invention;

[0019] Figure 5 Schematic diagram of the structure of the first cleaning member and the first reciprocating member of the present invention;

[0020] Figure 6 Schematic diagram of the structure of the second cleaning member and the second reciprocating member of the present invention;

[0021] Figure 7 Schematic diagram of the structure of the linkage mechanism of the present invention;

[0022] Figure 8 Schematic diagram of the structure of the transmission mechanism of the present invention;

[0023] Figure 9 Schematic diagram of the structure of the limiting member of the present invention.

[0024] In the figure: 1 - fixed plate body; 2 - heat exchange plate group; 3 - cleaning mechanism; 4 - first cleaning member; 5 - first reciprocating member; 6 - second cleaning member; 7 - second reciprocating member; 8 - linkage mechanism; 9 - transmission mechanism; 10 - first brush; 11 - first fixing rod; 12 - limiting member; 13 - first moving frame; 14 - first half gear; 15 - first rack; 16 - first rotating shaft; 17 - second brush; 18 - second fixing rod; 19 - sliding groove; 20 - second moving frame; 21 - second half gear; 22 - second rack; 23 - second rotating shaft; 24 - L-shaped plate; 25 - driving bevel gear; 26 - driven bevel gear; 27 - third rotating shaft; 28 - driving pulley; 29 - belt; 30 - driven pulley; 31 - U-shaped plate; 32 - driving motor; 33 - motor fixing bracket; 34 - driving shaft; 35 - U-shaped seat; 36 - driving gear; 37 - transmission gear; 38 - synchronous belt; 39 - sliding sleeve; 40 - fixing block; 41 - spring; 42 - sliding rod; 43 - limiting block. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] As Figures 1-4As shown in the figure, a cleaning device for a plate heat exchanger for a new energy vehicle comprises two fixed plate bodies 1 arranged in parallel, a heat exchange plate group 2 is overlapped and clamped between the two fixed plate bodies 1, and a cleaning mechanism 3 for automatically cleaning dirt on the surface of the heat exchange plate group 2 is arranged on the outer side of the heat exchange plate group 2; the cleaning mechanism 3 comprises a first cleaning member 4, a first reciprocating member 5, a second cleaning member 6, a second reciprocating member 7, a linkage mechanism 8 and a transmission mechanism 9, and the first cleaning member 4 and the second cleaning member 6 are each provided with two groups, and the two groups of first cleaning members 4 are respectively arranged on the left and right sides of the heat exchange plate group 2, and the two groups of second cleaning members 6 are respectively arranged on the upper and lower sides of the heat exchange plate group 2, and the top of the first cleaning member 4 The first reciprocating member 5 is installed at the top and bottom of the heat exchange plate group 2, the first reciprocating member 5 is installed at the front and rear sides of the second cleaning member 6, the first reciprocating member 5 and the second reciprocating member 7 are connected by a linkage mechanism 8, and the transmission mechanism 9 is installed on one side of one of the fixed plate bodies 1. Through the coordinated use of the designed first cleaning member 4, the first reciprocating member 5, the second cleaning member 6, the second reciprocating member 7, the linkage mechanism 8 and the transmission mechanism 9, the dirt on the four surfaces of the left, right, top and bottom of the heat exchange plate group 2 can be automatically cleaned, the accuracy and simultaneity of cleaning in all directions are guaranteed, and the cleaning speed is fast and the efficiency is high, thereby ensuring the heat exchange effect of the heat exchange plate.

[0028] Among them, Figure 5 As shown, in order to clean the left and right sides of the heat exchange plate group 2, the first cleaning member 4 includes a first brush 10, a first fixed rod 11 and a limit member 12. The first brush 10 is respectively fitted with the left and right outer walls of the heat exchange plate group 2, and the upper and lower ends of the first brush 10 are transmission-connected to the output end of the first reciprocating motion member 5 through the first fixed rod 11. The limit member 12 is arranged between the two fixed plate bodies 1. The first reciprocating motion member 5 controls the first brush 10 located on the left and right sides of the heat exchange plate group 2 to reciprocate back and forth, thereby automatically cleaning the left and right sides of the heat exchange plate group 2.

[0029] At the same time, if Figure 5As shown in the figure, in order to make the first brush 10 reciprocate on the surface of the heat exchange plate group 2, the first reciprocating member 5 includes a first moving frame 13, a first half gear 14, a first rack 15 and a first rotating shaft 16. The first moving frame 13 is fixedly connected to the first brush 10 through a first fixing rod 11. The first racks 15 are evenly distributed at the upper and lower positions inside the first moving frame 13. The first half gear 14 is meshed with the first moving frame 13 through the first racks 15. A first rotating shaft 16 is fixed in the central hole of the first half gear 14. The input end of the linkage mechanism 8 is drivingly connected to the first rotating shaft 16. There are two first rotating shafts 16 symmetrically distributed up and down, and one side of the two first rotating shafts 16 is drivingly connected through a transmission mechanism 9. By the rotation of the first half gear 14, the first racks 15 drive the first moving frame 13 to move back and forth, and then drive the first brush 10 connected to the first moving frame 13 to reciprocate on the surface of the heat exchange plate group 2.

[0030] In addition, as Figure 1 and Figure 6 shown, in order to clean the upper and lower sides of the heat exchange plate group 2, the second cleaning member 6 includes a second brush 17 and a second fixing rod 18. The second brush 17 is respectively attached to the outer side walls of the upper and lower ends of the heat exchange plate group 2. Both the front and rear ends of the second brush 17 are drivingly connected to the output end of the second reciprocating member 7 through the second fixing rod 18. Sliding grooves 19 are formed on both the upper and lower sides of the fixed plate body 1. The second fixing rod 18 is slidably connected to the fixed plate body 1 through the sliding grooves 19. The second reciprocating member 7 controls the second brush 17 located on the upper and lower sides of the heat exchange plate group 2 to reciprocate back and forth, so as to automatically clean the upper and lower sides of the heat exchange plate group 2.

[0031] Meanwhile, as Figure 6 shown, in order to make the second brush 17 reciprocate on the surface of the heat exchange plate group 2, the second reciprocating member 7 includes a second moving frame 20, a second half gear 21, a second rack 22 and a second rotating shaft 23. The second moving frame 20 is fixedly connected to the second brush 17 through the second fixing rod 18. The second racks 22 are evenly distributed at the upper and lower positions inside the second moving frame 20. The second half gear 21 is meshed with the second moving frame 20 through the second racks 22. A second rotating shaft 23 is fixed in the central hole of the second half gear 21. The output end of the linkage mechanism 8 is drivingly connected to the second rotating shaft 23. An L-shaped plate 24 is rotatably connected to the outside of the second rotating shaft 23 through a bearing. One end of the L-shaped plate 24 is fixed on the fixed plate body 1. By the rotation of the second half gear 21, the second racks 22 drive the second moving frame 20 to move back and forth, and then drive the second brush 17 connected to the second moving frame 20 to reciprocate on the surface of the heat exchange plate group 2.

[0032] In addition, as Figure 9As shown, in order to ensure the stability of the reciprocating motion of the first brush 10, the limiter 12 includes a sleeve 39, a fixed block 40, a spring 41, a slide rod 42 and a limit block 43. The slide rod 42 is fixed between the two fixed plates 1 through the limit block 43. The sleeve 39 is slidably sleeved on the outer side of the slide rod 42. The sleeve 39 is fixedly connected to the first brush 10 through the fixed block 40. There are two groups of springs 41, and the two ends of the two groups of springs 41 are respectively fixedly connected to the sleeve 39 and the limit block 43. The slide rod 42 is arranged on the inner side of the spring 41. The reciprocating motion of the first brush 10 drives the sleeve 39 to slide on the outer side of the slide rod 42. The sleeve 39 stretches and contracts the spring 41 to ensure that the first brush 10 can accurately move between the two extreme positions.

[0033] Self-cleaning of the heat exchange plate group 2: By starting the transmission mechanism 9, the transmission mechanism 9 transmits the output power to the two first rotating shafts 16, and drives the two first rotating shafts 16 to rotate at the same time, and the first rotating shaft 16 drives the first half gear 14 to rotate. Through the rotation of the first half gear 14, the first rack 15 drives the first moving frame 13 to move back and forth, and then drives the first brush 10 connected to the first moving frame 13 to make a reciprocating motion on the left and right surfaces of the heat exchange plate group 2, and automatically cleans the dirt on the left and right sides of the heat exchange plate group 2. At the same time, the second rotating shaft 23 will also be connected to the linkage mechanism 8. The two second rotating shafts 23 are driven to rotate simultaneously, and the second rotating shaft 23 will drive the second half gear 21 to rotate. Through the rotation of the second half gear 21, the second gear drives the second movable frame 20 to move back and forth, thereby driving the second brush 17 connected to the second movable frame 20 to make reciprocating motion on the upper and lower surfaces of the heat exchange plate group 2, and automatically cleans the dirt on the upper and lower sides of the heat exchange plate group 2, so that the dirt on the four surfaces of the left, right, upper and lower surfaces of the heat exchange plate group 2 can be automatically cleaned, ensuring the accuracy and simultaneity of cleaning in all directions, and the cleaning speed is fast and efficient, thereby ensuring the heat exchange effect of the heat exchange plate.

[0034] Example 2

[0035] like Figure 7 As shown, this embodiment further illustrates Example 1. The linkage mechanism 8 shown in the figure includes a driving bevel gear 25, a passive bevel gear 26, a third rotating shaft 27, a driving pulley 28, a belt 29 and a driven pulley 30. The passive bevel gear 26 and the driving pulley 28 are both fixedly sleeved on the outside of the third rotating shaft 27. The driving bevel gear 25 and the passive bevel gear 26 are meshed and connected. The driving pulley 28 is transmission-connected to the driven pulley 30 through the belt 29. The driven pulley 30 is fixedly sleeved on the outside of the second rotating shaft 23. A U-shaped plate 31 is fixed on the L-shaped plate 24. The middle part of the U-shaped plate 31 is rotationally connected to the third rotating shaft 27 through a bearing. The first rotating shaft 16 and the second rotating shaft 23 can be driven to rotate at the same time through the linkage mechanism 8.

[0036] In this embodiment: Combining with Embodiment 1, when the two first rotating shafts 16 rotate, they will drive the driving bevel gear 25 to rotate. The driving bevel gear 25 drives the driven bevel gear 26 to rotate, and the driven bevel gear 26 drives the third rotating shaft 27 to rotate, thereby driving the driving pulley 28 to rotate. The driving pulley 28 drives the driven pulley 30 to rotate through the belt 29, so that the second rotating shaft 23 fixed to the driven pulley 30 rotates, and further ensures that the first reciprocating member 5 and the second reciprocating member 7 can move simultaneously.

[0037] Embodiment 3

[0038] As Figure 8 shown, this embodiment further illustrates Embodiment 1. The transmission mechanism 9 in the figure includes a driving motor 32, a motor fixing bracket 33, a driving shaft 34, a U-shaped seat 35, a driving gear 36, a transmission gear 37, and a synchronous belt 38. The driving motor 32 is fixed to one side of one of the fixing plate bodies 1 through the motor fixing bracket 33. The driving shaft 34 is fixedly connected to the output end of the driving motor 32. The U-shaped seat 35 is rotatably connected to the outside of the driving shaft 34 through a bearing. One end of the U-shaped seat 35 is fixed to the outer wall of the fixing plate body 1. The driving gear 36 is fixed to the end of the driving shaft 34 away from the driving motor 32. Transmission gears 37 are fixed to one ends of the two first rotating shafts 16, and the two transmission gears 37 are meshed and connected to the driving gear 36 through the synchronous belt 38. The transmission mechanism 9 can provide power for the rotation of the first rotating shafts 16.

[0039] In this embodiment: When cleaning is required, by starting the driving motor 32 to work, the driving motor 32 drives the driving shaft 34 to rotate, the driving shaft 34 drives the driving gear 36 to rotate, and the driving gear 36 drives the two transmission gears 37 to rotate simultaneously through the synchronous belt 38. The two transmission gears 37 will drive the two first rotating shafts 16 to rotate simultaneously, so that the power sources of the first cleaning member 4, the first reciprocating member 5, the second cleaning member 6, and the second reciprocating member 7 all come from the same driving motor 32, reducing the power consumption of the overall cleaning mechanism 3.

[0040] In this solution, the driving motor 32 is preferably of the model Y100L-2. The circuit operation is a conventional existing circuit. The circuits and controls involved in the present invention are all existing technologies and will not be elaborated too much here.

[0041] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] 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. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning device for a plate heat exchanger used in a new energy vehicle, comprising two fixed plate bodies (1) arranged in parallel, and a heat exchange plate group (2) is laminated and clamped between the two fixed plate bodies (1), and is characterized in that: A cleaning mechanism (3) for automatically cleaning dirt on the surface of the heat exchange plate group (2) is provided on the outer side of the heat exchange plate group (2); the cleaning mechanism (3) comprises a first cleaning member (4), a first reciprocating member (5), a second cleaning member (6), a second reciprocating member (7), a linkage mechanism (8) and a transmission mechanism (9); the first cleaning member (4) and the second cleaning member (6) are each provided with two groups, the two groups of the first cleaning member (4) are respectively arranged on the left and right sides of the heat exchange plate group (2), the two groups of the second cleaning member (6) are respectively arranged on the upper and lower sides of the heat exchange plate group (2), the first reciprocating member (5) is installed on the top and bottom of the first cleaning member (4), the second reciprocating member (7) is installed on the front and rear sides of the second cleaning member (6), the first reciprocating member (5) and the second reciprocating member (7) are connected to each other by the linkage mechanism (8), and the transmission mechanism (9) is installed on one side of one of the fixed plates (1); The second cleaning member (6) comprises a second brush (17) and a second fixing rod (18), the second brush (17) being respectively fitted with the upper and lower outer side walls of the heat exchange plate group (2), the front and rear ends of the second brush (17) being transmission-connected to the output end of the second reciprocating member (7) via the second fixing rod (18), the upper and lower sides of the fixing plate body (1) being provided with sliding grooves (19), the second fixing rod (18) being slidingly connected to the fixing plate body (1) via the sliding grooves (19); The second reciprocating member (7) comprises a second moving frame (20), a second half gear (21), a second rack (22) and a second rotating shaft (23); the second moving frame (20) is fixedly connected to the second brush (17) via the second fixing rod (18); the second rack (22) is evenly distributed at upper and lower positions inside the second moving frame (20); the second half gear (21) is meshedly connected to the second moving frame (20) via the second rack (22); a second rotating shaft (23) is fixed in a center hole of the second half gear (21); the output end of the linkage mechanism (8) is drivingly connected to the second rotating shaft (23); an L-shaped plate (24) is rotatably connected to the outer side of the second rotating shaft (23) via a bearing; one end of the L-shaped plate (24) is fixed to the fixed plate body (1); The linkage mechanism (8) includes a driving bevel gear (25), a driven bevel gear (26), a third rotating shaft (27), a driving pulley (28), a belt (29) and a driven pulley (30). The driven bevel gear (26) and the driving pulley (28) are both fixedly sleeved on the outer side of the third rotating shaft (27). The driving bevel gear (25) is meshed and connected with the driven bevel gear (26). The driving pulley (28) is drivingly connected with the driven pulley (30) through the belt (29). The driven pulley (30) is fixedly sleeved on the outer side of the second rotating shaft (23). A U-shaped plate (31) is fixed on the L-shaped plate (24). The middle part of the U-shaped plate (31) is rotationally connected with the third rotating shaft (27) through a bearing.

2. The cleaning device for the plate heat exchanger used in a new energy vehicle according to claim 1, characterized in that: The first cleaning member (4) includes a first brush (10), a first fixing rod (11) and a limiting member (12). The first brush (10) is respectively attached to the left and right outer side walls of the heat exchange plate group (2). The upper and lower ends of the first brush (10) are both drivingly connected with the output end of the first reciprocating member (5) through the first fixing rod (11). The limiting member (12) is arranged between the two fixing plate bodies (1).

3. The cleaning device for the plate heat exchanger used in a new energy vehicle according to claim 2, characterized in that: The first reciprocating member (5) includes a first moving frame (13), a first half gear (14), a first rack (15) and a first rotating shaft (16). The first moving frame (13) is fixedly connected with the first brush (10) through the first fixing rod (11). The first racks (15) are evenly distributed at the upper and lower positions inside the first moving frame (13). The first half gear (14) is meshed and connected with the first moving frame (13) through the first rack (15). A first rotating shaft (16) is fixed in the central hole of the first half gear (14). The input end of the linkage mechanism (8) is drivingly connected with the first rotating shaft (16). There are two first rotating shafts (16) symmetrically distributed up and down, and one side of the two first rotating shafts (16) is drivingly connected through the transmission mechanism (9).

4. The cleaning device for the plate heat exchanger used in a new energy vehicle according to claim 3, characterized in that: The transmission mechanism (9) includes a driving motor (32), a motor fixing frame (33), a driving shaft (34), a U-shaped seat (35), a driving gear (36), a transmission gear (37) and a synchronous belt (38). The driving motor (32) is fixed on one side of one of the fixing plate bodies (1) through the motor fixing frame (33). The driving shaft (34) is fixedly connected with the output end of the driving motor (32). The U-shaped seat (35) is rotationally connected to the outer side of the driving shaft (34) through a bearing. One end of the U-shaped seat (35) is fixed to the outer wall of the fixing plate body (1). The driving gear (36) is fixed at the end of the driving shaft (34) away from the driving motor (32). Transmission gears (37) are fixed at one end of each of the two first rotating shafts (16). The two transmission gears (37) are meshed and connected with the driving gear (36) through the synchronous belt (38).

5. The cleaning device for the plate heat exchanger used in a new energy vehicle according to claim 2, wherein: The limiting member (12) includes a sliding sleeve (39), a fixing block (40), a spring (41), a sliding rod (42) and a limiting block (43). The sliding rod (42) is fixed between the two fixing plate bodies (1) through the limiting block (43). The sliding sleeve (39) is slidably sleeved on the outer side of the sliding rod (42). The sliding sleeve (39) is fixedly connected to the first brush (10) through the fixing block (40). There are two groups of springs (41), and the two ends of the two groups of springs (41) are respectively fixedly connected to the sliding sleeve (39) and the limiting block (43). The sliding rod (42) is arranged inside the spring (41).

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