Heat exchanger fan device and cold chain unit

Abstract

The utility model provides a heat exchanger fan device and a cold chain unit. The heat exchanger fan device is used for being installed on a frame of a cold chain unit and comprises a fan assembly, a wind scooper and a partition plate. The fan assembly and the partition plate are used for being fixed to the frame, and the wind scooper is assembled on the partition plate. The partition plate is provided with a mounting hole and is provided with a first side and a second side which are opposite, the wind scooper is arranged on the inner side of a heat exchanger in the cold chain unit, the wind scooper is provided with an inlet and an outlet, the inlet of the wind scooper is adjacent to the outlet of the heat exchanger, and the wind scooper is arranged in the mounting hole of the partition plate; an inlet and an outlet of the wind scooper are located on the first side and the second side of the partition plate respectively, the wind scooper has a first position and a second position relative to the partition plate, and the wind scooper is connected with the fan assembly when the wind scooper is located at the first position relative to the partition plate; when the wind scooper is located at the second position relative to the partition plate, the wind scooper can be separated from the fan assembly. The fan assembly can be conveniently disassembled under the condition that the wind scooper is not disassembled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchangers, and in particular to a heat exchanger fan device and a cold chain unit. BACKGROUND

[0002] The existing trailer condenser fan structure adopts a mechanical fan + gear train structure, and needs to use a belt drive to drive the fan to rotate by an engine. Therefore, there are a large number of gear trains around the fan. The belt drive has high requirements for the parts body and assembly error. Therefore, during installation, very precise assembly fixtures are required; during disassembly, a large amount of manpower and material resources need to be spent to cooperate with disassembly, and some complex maintenance work needs to disassemble the condenser. The existing trailer condenser fan structure is complex and difficult to disassemble, which is not conducive to installation and after-sales maintenance. In addition, the existing trailer condenser fan structure has many complex gear trains, high failure rate, and frequent maintenance. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present application is to provide a heat exchanger fan device and a cold chain unit, which can conveniently disassemble the fan assembly without disassembling the air guide cover.

[0004] One aspect of the present application provides a heat exchanger fan device for installation on a frame of a cold chain unit. The heat exchanger fan device comprises a fan assembly, an air guide cover and a partition plate, wherein the fan assembly and the partition plate are respectively fixed on the frame, and the air guide cover is assembled on the partition plate; the partition plate has a mounting hole and has opposite first and second sides, the air guide cover is arranged on the inner side of a heat exchanger in the cold chain unit, the air guide cover has an inlet and an outlet, the inlet of the air guide cover is arranged adjacent to the outlet of the heat exchanger, the air guide cover is arranged in the mounting hole of the partition plate, and the inlet and the outlet of the air guide cover are respectively located on the first and second sides of the partition plate, the air guide cover has a first position and a second position relative to the partition plate, when the air guide cover is in the first position relative to the partition plate, the air guide cover is engaged with the fan assembly; when the air guide cover is in the second position relative to the partition plate, the air guide cover can be disengaged from the fan assembly.

[0005] Further, the heat exchanger fan device comprises a fixing bolt having external threads, the air guide cover is provided with a threaded hole having internal threads, the external threads of the fixing bolt are screwed with the internal threads of the threaded hole, the fixing bolt has a locked state and an unlocked state, when the fixing bolt is in the locked state, the air guide cover is fixed in the first position relative to the partition plate; when the fixing bolt is in the unlocked state, the air guide cover can be axially moved between the first position and the second position relative to the partition plate by screwing the external threads of the fixing bolt with the internal threads of the threaded hole.

[0006] Further, a limiting locking nut is arranged at the end of the fixing bolt, and the limiting locking nut is used for limiting the air baffle relative to the partition plate.

[0007] Further, the air baffle comprises an air duct and a mounting rim, the air duct has the inlet and the outlet, the mounting rim extends radially outward from the inlet end of the air duct, the air duct extends through the mounting opening, the mounting rim is located on the first side of the partition plate, and the screw hole is arranged on the mounting rim.

[0008] Further, a through hole is arranged on the mounting rim, and a nut is arranged in the through hole, and the nut has the screw hole.

[0009] Further, the fan assembly comprises a fan and a fixing support, the fan is assembled on the fixing support, and the fixing support is used for being fixed on the frame.

[0010] Further, the fixing support comprises a mounting plate and a sliding sheet, the fan is assembled on the mounting plate, the sliding sheet extends from the top of the mounting plate to the side away from the fan, and the sliding sheet is used for being in sliding fit with the sliding rail on the frame.

[0011] Further, the mounting plate has one or more punched recesses.

[0012] Further, the heat exchanger fan device further comprises a motor, and the motor is used for driving the fan to operate.

[0013] Another aspect of the present application provides a cold chain unit. The cold chain unit comprises a frame and a condenser and a heat exchanger fan device as described above mounted on the frame, the heat exchanger fan device is a condenser fan device, and the heat exchanger fan device is mounted close to the outlet of the condenser and is used for dissipating heat of the condenser.

[0014] The heat exchanger fan device and the cold chain unit of one or more embodiments of the present application can realize that the fan assembly can be selectively engaged with or separated from the air baffle by designing the air baffle into a non-detachable movable structure, so that the fan assembly can be conveniently detached from the metal frame of the cold chain unit without removing the air baffle, and good maintenance convenience and reliability are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Part of the schematic diagram of the cold chain unit of one embodiment of the present application.

[0016] Figure 2 Part of the schematic diagram of another view of the cold chain unit of one embodiment of the present application.

[0017] Figure 3 The overall structure schematic diagram of the heat exchanger fan device of one embodiment of the present application.

[0018] Figure 4 The state schematic diagram of the shroud relative to the partition plate in the first position of one embodiment of the present application.

[0019] Figure 5 The state schematic diagram of the shroud relative to the partition plate in the second position of one embodiment of the present application.

[0020] Figure 6 The exploded schematic diagram of the fan assembly of one embodiment of the present application.

[0021] Figure 7 The assembled schematic diagram of the fan assembly of one embodiment of the present application.

[0022] Figure 8 The schematic diagram of the fan assembly before being installed on the metal frame of one embodiment of the present application.

[0023] Figure 9 The schematic diagram of the fan assembly after being installed on the metal frame of one embodiment of the present application. DETAILED DESCRIPTION

[0024] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, and the term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Unless specifically stated otherwise, the exemplary embodiments are not intended to be limiting.

[0025] The heat exchanger fan device and cold chain unit of the present application will be described in detail below with reference to the accompanying drawings. The features in the following embodiments and implementation manners can be combined with each other without conflict.

[0026] The present application provides a cold chain unit 1. The cold chain unit 1 of the present application may, for example, be a kind of trailer cold chain unit 1. Figure 1 And Figure 2 A partial schematic diagram of the cold chain unit 1 of one embodiment of the present application is disclosed. As shown in Figure 1 And Figure 2 The cold chain unit 1 of one embodiment of the present application may, for example, include an evaporator, a condenser 20, a gas-liquid separator, a power pack, and a battery pack. The cold chain unit 1 of the present application also includes a metal frame 70, and the evaporator, the condenser 20, the gas-liquid separator, the power pack, and the battery pack are all installed on the metal frame 70 of the cold chain unit 1.

[0027] The power pack has a compressor, and the compressor, the condenser 20, the evaporator and the gas-liquid separator can be connected by pipelines. The battery pack has a wiring terminal, and the wiring terminal of the battery pack can be connected with the power pack by wires to provide power for the power pack.

[0028] The present application also provides a heat exchanger fan device 60. In an embodiment of the present application, the heat exchanger fan device 60 is a condenser fan. However, the heat exchanger fan device 60 of the present application is not limited to be a condenser fan. As shown in Figure 1 and Figure 2 The heat exchanger fan device 60 of the present application can be installed on the metal frame 70 of the cold chain unit 1. In the case that the heat exchanger fan device 60 is a condenser fan, the heat exchanger fan device 60 of the present application is installed close to the outlet of the condenser 20 to dissipate heat for the condenser 20.

[0029] Figure 3 The overall structure of the heat exchanger fan device 60 of an embodiment of the present application is disclosed. In combination with the description of Figure 3 The heat exchanger fan device 60 of an embodiment of the present application includes a fan assembly 61, a fan shroud 62 and a partition plate 63. The fan assembly 61 and the partition plate 63 are respectively fixed on the metal frame 70 of the cold chain unit 1, and the fan shroud 62 can be assembled on the partition plate 63. Through the partition plate 63, the fan shroud can be assembled to the metal frame.

[0030] The partition plate 63 has a mounting opening 630 and has opposite first and second sides.

[0031] The fan shroud 62 is arranged at the inner side of the heat exchanger (for example, the condenser 20) in the cold chain unit 1. In an embodiment of the present application, the fan shroud 62 is arranged at the inner side of the condenser 20. The fan shroud 62 has an inlet 6201 and an outlet 6202 (as shown in Figure 4 and Figure 5 As shown in Figure 2 The inlet 6201 of the fan shroud 62 is arranged adjacent to the outlet 6202 of the heat exchanger, the fan shroud 62 is arranged in the mounting opening 630 of the partition plate 63, and the inlet 6201 and the outlet 6202 of the fan shroud 62 are respectively located at the first side and the second side of the partition plate 63.

[0032] The fan shroud 62 has a first position and a second position relative to the partition plate 63. Figure 4 The state diagram of the fan shroud 62 of the heat exchanger fan device 60 of an embodiment of the present application is disclosed in the first position relative to the partition plate 63. As shown in Figure 4 and in combination with the description of Figure 1 and Figure 2As shown, when the air guide shroud 62 is in the first position relative to the partition 63, the air guide shroud 62 can be engaged with the fan assembly 61, and the heat exchanger fan device 60 of this application is in the assembly position, so that the heat exchanger fan device 60 of this application can be assembled onto the metal frame 70 of the cold chain unit 1.

[0033] Figure 5 This diagram illustrates a state in which the air guide shroud 62 of a heat exchanger fan assembly 60 according to an embodiment of this application is in a second position relative to the partition 63. (See diagram below.) Figure 5 and in conjunction with reference Figure 1 and Figure 2 As shown, when the air guide shroud 62 is in the second position relative to the partition 63, the air guide shroud 62 can be detached from the fan assembly 61, so that the fan assembly 61 can be separated from the air guide shroud 62 without disassembling the air guide shroud 62 and the partition 63, and then the fan assembly 61 can be removed from the metal frame 70 of the cold chain unit 1.

[0034] The heat exchanger fan assembly 60 of this application designs the air guide shroud 62 as a non-removable movable structure, so that the fan assembly 61 can be selectively engaged or disengaged from the air guide shroud 62, thereby enabling the fan assembly 61 to be easily removed from the metal frame 70 of the cold chain unit 1 without removing the air guide shroud 62.

[0035] like Figure 4 and Figure 5 As shown, in some embodiments, the heat exchanger fan device 60 of this application includes a fixing bolt 64, the fixing bolt 64 having an external thread, and the air guide shroud 62 having a threaded hole with an internal thread. The external thread of the fixing bolt 64 can be screwed into the internal thread of the threaded hole of the air guide shroud 62.

[0036] The fixing bolt 64 has a locked state and an unlocked state. For example... Figure 4 As shown, with the fixing bolt 64 in the locked state, the air guide shroud 62 is fixed in the first position relative to the partition 63. At this time, the fan assembly 61 is engaged with the air guide shroud 62. Figure 5 As shown, with the fixing bolt 64 in the unlocked state, the engagement of the external thread of the fixing bolt 64 with the internal thread of the threaded hole of the air guide 62 allows the air guide 62 to move axially between the first and second positions relative to the partition 63. When the air guide 62 is in the second position relative to the partition 63, the fan assembly 61 is disengaged from the air guide 62. At this time, since the fan assembly 61 has been disengaged from the air guide 62, the fan assembly 61 can be removed from the metal frame 70 without removing the air guide 62.

[0037] like Figure 3As shown, in the example of the present application, three screw holes are arranged in the circumference of the mounting rim 622 of the air deflector 62, and the heat exchanger fan device 60 of the present application comprises three fixing bolts 64. The air deflector 62 is assembled on the partition plate 63 through the cooperation of the three fixing bolts 64 and the three screw holes of the air deflector 62.

[0038] Optionally, a gasket 67 is arranged between the fixing bolt 64 and the partition plate 63 to better fasten the fixing bolt 64 on the partition plate 63.

[0039] To prevent the air deflector 62 from being detached from the fixing bolt 64, a limiting locking nut 65 is arranged at the end of the fixing bolt 64, which is used to limit the air deflector 62 relative to the partition plate 63.

[0040] In some embodiments, the air deflector 62 comprises an air deflector cylinder 621 and a mounting rim 622, the air deflector cylinder 621 has an inlet 6201 and an outlet 6202, the inlet 6201 of the air deflector cylinder 621 is close to the outlet 6202 of the condenser 20, and when the fan assembly 61 is assembled on the air deflector cylinder 621, the fan assembly 61 is engaged with the outlet 6202 of the air deflector cylinder 621. The mounting rim 622 of the air deflector 62 extends radially outward from one end of the inlet 6201 of the air deflector cylinder 621, and the air deflector cylinder 621 can extend from the first side of the partition plate 63 through the mounting opening 630 of the partition plate 63 and be located on the second side of the partition plate 63, wherein the mounting rim 622 is located on the first side of the partition plate 63, and the screw hole arranged on the air deflector 62 is arranged on the mounting rim 622 of the air deflector 62.

[0041] As shown in FIG. 1, Figure 4 and Figure 5 In some embodiments, a through hole 6220 is arranged on the mounting rim 622 of the air deflector 62, and a nut 66 having a screw hole is arranged in the through hole 6220. The structural strength of the mounting rim 622 of the air deflector 62 can be enhanced through the cooperation of the screw hole of the nut 66 and the fixing bolt 64, so as to avoid the abrasion of the mounting rim 622 of the air deflector 62 caused by the screwing of the external thread of the fixing bolt 64. Of course, the screw hole of the air deflector 62 of the present application is not limited to this. In other embodiments, a screw hole can also be directly arranged on the mounting rim 622 of the air deflector 62.

[0042] Figure 6 FIG. 2 shows an exploded schematic view of the fan assembly 61 of an embodiment of the present application, Figure 7 FIG. 3 shows an assembled schematic view of the fan assembly 61 of an embodiment of the present application. As shown in FIG. 3, Figure 6 and Figure 7As shown, in some embodiments, the fan assembly 61 of the present application comprises a fan 611 and a fixing bracket 612, the fan 611 is assembled on the fixing bracket 612, so that the fan 611 and the fixing bracket 612 can form an integral whole, which can be installed or disassembled as a whole. The fixing bracket 612 can be fixed on the metal frame 70 by bolts or the like, so that the entire fan assembly 61 can be installed on the metal frame 70.

[0043] In an embodiment of the present application, the heat exchanger fan device 60 comprises two air guide covers 62 and corresponding two fans 611, wherein the two fans 611 are vertically assembled together on a fixing bracket 612, the upper fan 611 blows air upward, and the lower fan 611 blows air downward, forming a fan assembly 61.

[0044] In some embodiments, the fixing bracket 612 of the fan assembly 61 comprises a mounting plate 6121 and a sliding piece 6122, the fan 611 is assembled on the mounting plate 6121, and the sliding piece 6122 extends from the top of the mounting plate 6121 to the side away from the fan 611.

[0045] Figure 8 A schematic view of the fan assembly 61 of an embodiment of the present application before being installed on the metal frame 70 is disclosed, Figure 9 A schematic view of the fan assembly 61 of an embodiment of the present application after being installed on the metal frame 70 is disclosed. As Figure 8 And Figure 9 As shown, the metal frame 70 of the cold chain unit 1 is provided with a sliding rail 71. The sliding piece 6122 on the fixing bracket 612 of the fan assembly 61 can be slidably connected with the sliding rail 71 on the metal frame 70. Thus, the entire fan assembly 61 can be slid into the installation position of the metal frame 70 by means of the sliding connection between the sliding piece 6122 on the fixing bracket 612 of the fan assembly 61 and the sliding rail 71 on the metal frame 70.

[0046] As Figure 6 Optionally, the mounting plate 6121 has one or more stamped recesses 6123, so as to enhance the structural strength of the mounting plate 6121.

[0047] In an embodiment, the heat exchanger fan device 60 of the present application further comprises a motor (not shown), which can drive the fan 611 to operate. The heat exchanger fan device 60 of the present application adopts an electronic fan 611, which has a simple structure and can avoid the complex gear train used by a mechanical fan 611, thereby reducing the failure rate of the fan 611 and facilitating maintenance.

[0048] In assembling the heat exchanger fan device 60 of the present application, the two fans 611 are first assembled on the fixed support 612 by bolts, so as to form a fan assembly 61 of the fans 611 and the fixed support 612 as a whole; the partition plate 63 is fixed on the metal frame 70, then the two air deflectors 62 are pre-assembled on the partition plate 63 by long fixing bolts 64, the fixing bolts 64 are tightened at the ends by limiting locking nuts 65 to prevent the air deflectors 62 from slipping off, the fan assembly 61 is slid into the metal frame 70 as a whole, and is then fixed on the metal frame 70 by bolts, finally the fan assembly 61 and the air deflectors 62 are adjusted to a proper gap by a tool, and the fixing bolts 64 are directly locked to lock the air deflectors 62.

[0049] In disassembling the heat exchanger fan device 60 of the present application, the fixing bolts 64 of the air deflectors 62 are loosened, the air deflectors 62 are pushed out towards the condenser 20, and the air deflectors 62 are blocked by the limiting locking nuts 65 and cannot fall out, then the bolts for fixing the fan assembly 61 are disassembled, and the fan assembly 61 is slid out of the metal frame 70 and disassembled, so that the fan assembly 61 can be repaired or replaced without disassembling the air deflectors 62.

[0050] The heat exchanger fan device 60 of the present application has good maintenance convenience and reliability.

[0051] The heat exchanger fan device and the cold chain unit provided by the embodiment of the present application are described in detail above. The heat exchanger fan device and the cold chain unit of the embodiment of the present application are described by applying specific examples in this paper, and the above description of the embodiments is only used to help understand the core idea of the present application, and does not limit the present application. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the spirit and principles of the present application, and these improvements and modifications should also fall within the protection scope of the appended claims of the present application.

Claims

1. A heat exchanger fan assembly for mounting on the frame of a cold chain unit, characterized in that: The heat exchanger fan device comprises a fan assembly, a fan shroud and a partition plate, wherein, the fan assembly and the partition plate are respectively arranged to be fixed on the frame, and the fan shroud is arranged on the partition plate; the partition plate has a mounting hole and has opposite first and second sides, the fan shroud is arranged on the inner side of the heat exchanger in the cold chain unit, the fan shroud has an inlet and an outlet, the inlet of the fan shroud is arranged adjacent to the outlet of the heat exchanger, the fan shroud is arranged in the mounting hole of the partition plate, and the inlet and the outlet of the fan shroud are respectively located on the first and second sides of the partition plate, the fan shroud has a first position and a second position relative to the partition plate, when the fan shroud is in the first position relative to the partition plate, the fan shroud is engaged with the fan assembly, and when the fan shroud is in the second position relative to the partition plate, the fan shroud can be disengaged from the fan assembly.

2. The heat exchanger fan arrangement of claim 1, wherein: a fixing bolt is provided, the fixing bolt has external threads, the fan shroud is provided with a threaded hole having internal threads, the external threads of the fixing bolt are screwed with the internal threads of the threaded hole, the fixing bolt has a locking state and a non-locking state, when the fixing bolt is in the locking state, the fan shroud is fixed in the first position relative to the partition plate; when the fixing bolt is in the non-locking state, the fan shroud can be axially moved between the first position and the second position relative to the partition plate by screwing the external threads of the fixing bolt with the internal threads of the threaded hole.

3. The heat exchanger fan arrangement of claim 2, wherein: a limiting locking nut is arranged at the end of the fixing bolt, and the limiting locking nut is used to limit the fan shroud relative to the partition plate.

4. The heat exchanger fan arrangement of claim 2, wherein: the fan shroud comprises a fan shroud and a mounting rim, the fan shroud has the inlet and the outlet, the mounting rim extends radially outward from the inlet end of the fan shroud, the fan shroud extends through the mounting hole, the mounting rim is located on the first side of the partition plate, and the threaded hole is arranged on the mounting rim.

5. The heat exchanger fan arrangement of claim 4, wherein: a through hole is arranged on the mounting rim, and a nut is arranged in the through hole, and the nut has the threaded hole.

6. The heat exchanger fan arrangement of claim 1, wherein: the fan assembly comprises a fan and a fixing bracket, the fan is arranged on the fixing bracket, and the fixing bracket is arranged on the frame.

7. The heat exchanger fan arrangement of claim 6, wherein: the fixing bracket comprises a mounting plate and a sliding sheet, the fan is arranged on the mounting plate, the sliding sheet extends from the top of the mounting plate away from the side of the fan, and the sliding sheet is used to slide with the sliding rail on the frame.

8. The heat exchanger fan arrangement of claim 7, wherein: one or more punched recesses are arranged on the mounting plate.

9. The heat exchanger fan arrangement of claim 1, wherein: a motor is further arranged, and the motor is used to drive the fan to operate.

10. A cold chain unit, characterized in that, a frame, a condenser arranged on the frame, and the heat exchanger fan device according to any one of claims 1 to 9 are provided, the heat exchanger fan device is a condenser fan device, and the heat exchanger fan device is arranged close to the outlet of the condenser and is used to dissipate heat for the condenser.

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