Vehicle-mounted cooling module group with variable structure

Abstract

The invention discloses a vehicle-mounted cooling module group with a variable structure. The vehicle-mounted cooling module group comprises a plurality of cooling modules, each cooling module comprises a frame, a compressor, a plate heat exchanger, a fan, a movable heat exchanger and a fixed heat exchanger; the top of the frame is a top plate with an adjustable inclination angle, and the fan is mounted in the top plate; a movable frame is arranged on one side in the frame, the movable heat exchanger is fixed in the movable frame, the movable frame is connected with one side of the top plate, and the fixed heat exchanger is fixed on one side, facing the outside of the vehicle cabin, in the frame; the compressor, the movable heat exchanger and the fixed heat exchanger form a refrigerant loop through pipelines. One set of flow channels of the plate heat exchanger and an external cooling liquid source form a cooling liquid loop through pipelines, and the other set of flow channels of the plate heat exchanger are connected with the compressor to form a refrigerant loop. The air flow field is more reasonable, and the heat exchange capacity of the module is improved to the maximum extent.

Description

Technical Field

[0001] The invention relates to the field of vehicle-mounted cooling liquid equipment, in particular to a vehicle-mounted cooling module group with a variable structure. Background Art

[0002] Liquid cooling equipment, sometimes called liquid cooling machine, liquid cooling source or water chiller, is mainly used to provide circulating coolant with certain temperature, flow and pressure requirements for heat load (cooled object). On-board liquid cooling equipment is mainly used for heat dissipation of military and civilian lasers, radars and high-power electronic equipment on vehicle platforms. With the rapid development of industry technology, the application of on-board liquid cooling equipment has been rapidly developed, and its number and models are increasing. The modular design ideas that follow have also been gradually recognized and strengthened by users and manufacturers. Modular design is a way out of the contradiction between customized production and mass production.

[0003] Modular design was first proposed by Herbert Simon, and its idea was initially applied in the modular design of products. Modular design is a design method that divides and designs a series of functional modules based on the functional analysis of products with different functions or the same functions with different performance and specifications within a certain range. Different products can be formed through the selection and combination of modules to meet different market needs.

[0004] A set of cooling liquid equipment usually includes a liquid supply part, a compression refrigeration part, a conventional heat exchange part (when necessary), an electronic control part, and system connection pipes, while the cooling module group mainly includes the compression refrigeration part and the conventional heat exchange part, which is the core of realizing the cooling function. In the past, the cooling module group or the vehicle cooling module group was often a fixed square structure. If it was installed on the chamfered cabin, it was difficult to achieve a reasonable heat dissipation path. On the contrary, if it was designed according to the chamfered structure, it was found to be difficult to install or could not meet the cabin strength requirements.

[0005] For modular products, they are often manifested as an entity composed of modules, so decomposition based on mechanical structural elements is an important aspect. Various other functional modules also often use mechanical structural modules as carriers to participate in the assembly of the whole machine or system. It is worth studying how the coolant equipment can adapt to the characteristics of the chamfered cabin, establish a variable modular structure, improve the adaptability of the vehicle cooling module group, and create more possibilities for the formation of modular products or systems.

[0006] At the same time, for the layout of large-capacity cold liquid equipment on the chamfered cabin, since there are almost no air inlets and outlets at the bottom and both end surfaces due to other factors, a large amount of heat exchange to the outside is required. It is highly likely that heat exchangers will be installed on both sides of the cabin and air outlet fans will be placed on the top slope. In this case, if an effective design plan is not adopted, a large amount of side space will be occupied, causing the cabin to be too long in the driving direction. Summary of the invention

[0007] The present invention provides a vehicle-mounted cooling module group with a variable structure to solve the problems existing in the traditional module architecture of the prior art.

[0008] In order to achieve the above object, the technical solution adopted by the present invention is: A variable-structure vehicle cooling module group, characterized in that it comprises a plurality of cooling modules loaded at the top edge of a vehicle cabin; each cooling module comprises a frame (2), a compressor, a plate heat exchanger (1), a fan (4.1), a movable heat exchanger (3.1), and a fixed heat exchanger (5.1); the top of the frame (1) is a top plate (4.2) with an adjustable inclination angle, and the fan (4.1) is installed in the top plate (4.2); a movable frame (3.2) is provided on one side of the frame (1) facing the vehicle cabin, the movable heat exchanger (3.1) is fixed in the movable frame (3.2), and the movable frame (3.2) The movable frame (3.2) and the movable heat exchanger (3.1) are connected to one side of the top plate (4.2) so that the movable frame (3.2) and the movable heat exchanger (3.1) can rise and fall as a whole along with the side of the top plate (4.2); the fixed heat exchanger (5.1) is fixed to the side of the frame (1) facing the outside of the vehicle cabin; the compressor is connected to the movable heat exchanger (3.1) and the fixed heat exchanger (5.1) through pipelines to form a refrigerant circuit; the plate heat exchanger (1) has two groups of flow channels, one group of flow channels of the plate heat exchanger (1) is connected to an external coolant source through pipelines to form a coolant circuit, and the other group of flow channels of the plate heat exchanger (1) is connected to the compressor through pipelines to form a refrigerant circuit.

[0009] Furthermore, it also includes a movable radiator (3.4) and a fixed radiator (5.2), wherein the movable radiator (3.4) is fixed in the movable frame (3.2) and integrated with the movable heat exchanger (3.1), the fixed radiator (5.2) is integrated with the fixed heat exchanger (5.1), and the movable radiator (3.4) and the fixed radiator (5.2) are connected to an external coolant source via a pipeline to form a coolant circuit.

[0010] Furthermore, the refrigerant inlet and outlet of the movable heat exchanger (3.1) face downward, and the refrigerant inlet and outlet of the movable heat exchanger (3.1) are connected to the compressor via a U-shaped hose to form a refrigerant circuit.

[0011] Furthermore, the coolant provided by the coolant source is an ethylene glycol aqueous solution, or an aviation coolant, or a hydrocarbon and organic silicon compound coolant, or a fluorocarbon coolant.

[0012] Furthermore, multiple cooling modules are distributed on both side edges of the top of the cabin in an array. Channels are provided between adjacent rows, or between adjacent columns, or between adjacent rows and columns in the array corresponding to the top of the cabin. The channels are connected to the environment outside the cabin through air inlets on the vehicle body.

[0013] Furthermore, the horizontal cross-sections of the movable heat exchanger (3.1) and the fixed heat exchanger (5.1) are linear or U-shaped.

[0014] The advantages of the present invention are: 1. The present invention utilizes the upper and lower positions of the movable heat exchanger to realize a variable modular structure, and the air flow field is more reasonable, which maximizes the heat exchange capacity of the module and is suitable for the modular design of the cold liquid equipment in the chamfered cabin.

[0015] 2. The present invention facilitates the integration of large systems through modular combination and realizes the modularization of core cooling components in the cooling liquid equipment.

[0016] 3. The structure of the present invention is simple, and the size of the cabin in the driving direction can be effectively reduced. At the same time, the maintenance surface becomes larger in the unfolded state, which is convenient for maintenance.

[0017] 4. The present invention is easy to realize large-scale production and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram of the structure of the present invention when only a movable heat exchanger and a fixed heat exchanger are provided, wherein: (a) is the structural diagram when the top plate is not inclined, and (b) is the structural diagram when the top plate is inclined.

[0019] Figure 2 It is a schematic diagram of a top view of a movable heat exchanger and a fixed heat exchanger in the present invention, wherein: (a) is a structural diagram when the horizontal cross section is a straight line, and (b) is a structural diagram when the horizontal cross section is a U-shaped.

[0020] Figure 3 This is a schematic diagram of the structure of the forced air cooling composite used in the present invention.

[0021] Figure 4 This is a front view of the layout of the present invention in a chamfered cabin.

[0022] Figure 5 It is a top view of the layout of multiple cooling models in the chamfered cabin of the present invention. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4, Figure 5 As shown, this embodiment discloses a vehicle-mounted cooling module group with a variable structure, including multiple cooling modules loaded at the top edge position of the cabin, and the multiple cooling modules are distributed at the edge positions on both sides of the top of the chamfered cabin and are distributed in an array. A channel is provided at the position between adjacent rows, or between adjacent columns, or between adjacent rows and columns in the array corresponding to the top of the chamfered cabin, and the channel is connected to the environment outside the cabin through the air inlet on the vehicle body. Figure 1 , Figure 3 middle, is the refrigerant flow direction, is the coolant flow direction, For air flow direction.

[0025] like Figure 1 As shown, each cooling module includes a frame 2, a compressor, a plate heat exchanger 1, a fan 4.1, a movable heat exchanger 3.1, and a fixed heat exchanger 5.1. One side of the frame 2 faces the inside of the vehicle cabin, and the top and the other side of the frame 2 face the outside of the vehicle cabin respectively. The top of the frame 2 is a top plate 4.2 with an adjustable tilt angle, and the fan 4.1 is embedded and installed in the top plate 4.2. A movable frame 3.2 is provided on one side of the frame 2 facing the inside of the vehicle cabin, and the movable heat exchanger 3.1 is fixed in the movable frame 3.2, and the upper end of the movable frame 3.2 is rotatably connected to the bottom of the left side of the top plate 4.2. When the left side of the top plate 4.2 is tilted to tilt upward, the movable frame 3.2 and the movable heat exchanger 3.1 can rise as a whole with the left side of the top plate 4.2. When the left side of the top plate 4.2 returns to horizontal, the movable frame 3.2 and the movable heat exchanger 3.1 can fall as a whole with the left side of the top plate 4.2. The fixed heat exchanger 5.1 is fixed to the other side of the frame facing the outside of the cabin. Figure 2 As shown, the horizontal cross-sections of the movable heat exchanger 3.1 and the fixed heat exchanger 5.1 are linear or U-shaped to meet the requirements of heat exchange capacity and space layout.

[0026] The compressor has three refrigerant output ports and two refrigerant input ports. The first refrigerant output port pipeline of the compressor is connected to the refrigerant inlet of the fixed heat exchanger 5.1 through a pipeline, and the first refrigerant input port of the compressor is connected to the refrigerant outlet of the fixed heat exchanger 5.1 through a pipeline, thereby the compressor and the fixed heat exchanger 5.1 form a refrigerant circuit. The second refrigerant output port pipeline of the compressor is connected to the refrigerant inlet of the movable heat exchanger 3.1 through a hose pipeline, and the first refrigerant input port of the compressor is also connected to the refrigerant outlet of the movable heat exchanger 3.1 through a hose pipeline, thereby the compressor and the movable heat exchanger 3.1 form a refrigerant circuit.

[0027] The refrigerant inlet and outlet of the movable heat exchanger 3.1 face downward, and are connected to the corresponding refrigerant input and output ports of the compressor through a U-shaped hose 3.3 to form a refrigerant circuit.

[0028] A coolant inlet A and a coolant outlet B are provided on one side of the frame 2, and the coolant inlet A and the coolant outlet B are connected to an external coolant source through pipelines respectively. The plate heat exchanger 1 has two groups of flow channels, one group of flow channels of the plate heat exchanger 1 is a coolant flow channel, and the other group of flow channels is a refrigerant flow channel. The two ends of the coolant flow channel of the plate heat exchanger 1 are connected to the coolant inlet A and the coolant outlet B through pipelines respectively, thereby connecting the coolant flow channel of the plate heat exchanger 1 to an external coolant source through the coolant inlet A and the coolant outlet B to form a coolant loop. The second refrigerant input port and the third refrigerant output port of the compressor are connected to the two ends of the refrigerant flow channel of the plate heat exchanger 1 through pipelines respectively, thereby forming a refrigerant loop between the compressor and the refrigerant flow channel of the plate heat exchanger 1.

[0029] The coolant provided by the coolant source is ethylene glycol aqueous solution, or No. 60 aviation coolant, or No. 65 aviation coolant, or hydrocarbon and organosilicon compound coolant, or fluorocarbon compound coolant.

[0030] like Figure 3 As shown, this embodiment also includes a movable radiator 3.4 and a fixed radiator 5.2, wherein the movable radiator 3.4 is fixed in the movable frame 3.2 and integrated with the movable heat exchanger 3.1, and the fixed radiator 5.2 is integrated with the fixed heat exchanger 5.1. The coolant inlet A is connected to the corresponding end of the coolant flow channel of the plate heat exchanger 1 through a three-way valve 6, one end of the movable radiator 3.4 is connected to the coolant inlet A through the three-way valve 6, the other end of the movable radiator 3.4 is connected to one end of the fixed heat exchanger 5.1 through a hose, and the other end of the fixed heat exchanger 5.1 is connected to the coolant outlet B. Thus, the movable radiator 3.4 and the fixed radiator 5.2 are connected in series and connected to the external coolant source through the coolant inlet A and the coolant outlet B to form a coolant loop.

[0031] In this embodiment, each cooling module includes two groups of heat exchangers, one group is a fixed heat exchanger 5.1, and the other group is a movable heat exchanger 3.1. The fixed heat exchanger 5.1 is vertically mounted on the side of the frame 2 facing the outside of the vehicle cabin; the movable heat exchanger 3.1 is vertically mounted on a movable frame 3.2, and can move up and down with the movable frame 3.2. After reaching the lower low position or the upper high position, it is fixed to the side of the frame 2 facing the inside of the cabin by connecting means. The movable heat exchanger 3.1 and the movable frame 3.2 constitute a movable heat exchange assembly 3. Each cooling module also includes a rotatable fan assembly 4, which includes a tiltable top plate 4.2 of the frame and a fan 4.1 embedded in the top plate 4.2. Before deployment, the fan 4.1 installed on the top plate 4.2 is horizontally upward, blows air upward, and the movable heat exchanger 3.1 is in a low position; after deployment, the fan 4.1 and the top plate 4.2 are tilted at an angle α (10° to 35°) to blow air upward, and the movable heat exchanger 3.1 is in a high position. A set of external coolant inlets and outlets A and B are also provided on one side of the frame of each cooling module.

[0032] When the cooling module is an air-cooled condensing compressor unit, the movable heat exchanger 3.1 and the fixed heat exchanger 5.1 assume the function of the condenser, and the high-temperature and high-pressure refrigerant discharged from the compressor is divided into two paths for condensation and heat exchange in two groups of heat exchangers, and then exchanges cold in the evaporation side heat exchanger through the throttling element, and the coolant enters from the coolant inlet A for cooling and finally flows out from the coolant outlet B.

[0033] When the cooling module is a composite of an air-cooled condensing compressor unit and forced air cooling, a movable radiator 3.4 and a fixed radiator 5.2 are also integrated. When the air-cooled condensing compressor unit is working, the principle is the same as above. When switched to forced air cooling, the coolant enters from the coolant inlet A through the three-way valve 6 to dissipate heat in the movable radiator 3.4 and the fixed radiator 5.2, and finally flows out from the coolant outlet B.

[0034] like Figure 4 , Figure 5 As shown, in this embodiment, the cooling modules are distributed back to back and symmetrically on the top edge of the cabin, and are distributed in rows and columns. Channels are provided between rows, or between columns, or between rows and columns, and air inlets are reserved at the corresponding channel positions on the top of the cabin.

[0035] After the movable heat exchanger 3.1 is installed upward to a high position, the space left at the bottom is used as a maintenance surface; the pipelines connected to the movable heat exchanger 3.1 and the movable radiator 3.4 adopt U-shaped stainless steel hoses, and the bending radius and length of the U-shaped stainless steel hoses are determined according to the safe distance that can be moved up and down.

[0036] The number of cooling module combinations and the design capacity of each group are optimized and determined based on the specific project. Usually, the number of cooling modules is between 2 and 20 groups, and the cooling capacity of each cooling module is between 10 and 200 kW. The cabin used to install each cooling module has installation interfaces and air outlets reserved on the side and top slope to facilitate the installation of the cooling module in the undeployed state from the outside and meet the air outlet requirements of fan 4.1.

[0037] The number of fans 4.1 used in each cooling module is not less than one, and the specific number is reasonably determined based on the heat exchange capacity and space layout.

[0038] The movable heat exchanger 3.1, the fixed heat exchanger 5.1, the movable radiator 3.4 and the fixed radiator 5.2 respectively adopt high-efficiency copper tube fin type heat exchangers or microchannel heat exchangers.

[0039] The present invention is further described as follows: For example, a cooling module with a cooling capacity of 100kW has an overall dimension of 1500×1000×1400 (length×width×height), a cabin width of 3000mm, and a cabin chamfer angle α of 15°; the movable heat exchanger 3.1 adopts a microchannel heat exchanger with a dimension of 1400×650×25.4 (length×height×thickness), corresponding to a cooling capacity of 33kW, and a theoretical height of 1400-650=750 mm at the bottom; the fixed heat exchanger 5.1 adopts a microchannel heat exchanger with a dimension of 1400×1300×25.4 (length×height×thickness), corresponding to a cooling capacity of 67kW. The width of the cooling module is calculated as 1000 mm, and the corresponding height of 15° is about 268 mm. At this time, the movable heat exchanger 3.1 is installed upward, and the theoretical height reserved at its lower part is 750+268=1018 mm. It can be seen that the movable heat exchanger 3.1 is designed as a movable component, which effectively improves the maintainability of the module. At the same time, 33% of the air volume must flow through the movable heat exchanger 3.1. Installing the movable heat exchanger 3.1 upward will reduce the wind resistance.

[0040] When two cooling modules are installed back to back and left to right, the theoretical width of the channel between the cooling modules is 3000-2×1000=1000 mm, and air inlets and outlets can be conveniently reserved at the top of the channel.

[0041] Furthermore, if there is no movable heat exchanger 3.1, the heat exchange capacity of the fixed heat exchanger 5.1 will increase by 50%, and the corresponding condenser length will increase to 1400×1.5=2100mm, that is, the length of one cooling module will increase by 700mm. If there are three cooling modules on one side, the cabin length will be affected by 2100mm. It can be seen that the cooling module with two sets of heat exchangers saves more space.

[0042] Furthermore, whether the air inlet and outlet of the cooling module use electric dampers, manual dampers or shutters is not the content to be protected by this patent and will not be elaborated here.

[0043] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. The various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and such combinations should also be regarded as the contents disclosed in the present disclosure as long as they do not violate the concept of the present invention. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0044] The present invention is not limited to the specific details of the above-mentioned embodiments. Within the technical concept of the present invention and without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by technical personnel in this field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A vehicle-mounted cooling module group with a variable structure, characterized in that: The invention comprises a plurality of cooling modules which are loaded at the top edge of a vehicle cabin; each cooling module comprises a frame (2), a compressor, a plate heat exchanger (1), a fan (4.1), a movable heat exchanger (3.1), and a fixed heat exchanger (5.1); the top of the frame (1) is a top plate (4.2) with an adjustable inclination angle, and the fan (4.1) is installed in the top plate (4.2); a movable frame (3.2) is provided on one side of the frame (1) facing the vehicle cabin, the movable heat exchanger (3.1) is fixed in the movable frame (3.2), and the movable frame (3.2) is connected to the top plate (4.2). The movable frame (3.2) and the movable heat exchanger (3.1) are integrally movable along with one side of the top plate (4.2); the fixed heat exchanger (5.1) is fixed to the side of the frame (1) facing the outside of the vehicle cabin; the compressor is connected to the movable heat exchanger (3.1) and the fixed heat exchanger (5.1) through pipelines to form a refrigerant circuit; the plate heat exchanger (1) has two groups of flow channels, one group of flow channels of the plate heat exchanger (1) is connected to an external coolant source through pipelines to form a coolant circuit, and the other group of flow channels of the plate heat exchanger (1) is connected to the compressor through pipelines to form a refrigerant circuit.

2. The variable structure vehicle cooling module assembly according to claim 1, characterized in that: It also includes a movable radiator (3.4) and a fixed radiator (5.2), wherein the movable radiator (3.4) is fixed in the movable frame (3.2) and integrated with the movable heat exchanger (3.1), the fixed radiator (5.2) is integrated with the fixed heat exchanger (5.1), and the movable radiator (3.4) and the fixed radiator (5.2) are connected to an external coolant source via a pipeline to form a coolant loop.

3. The variable structure vehicle cooling module assembly according to claim 1, characterized in that: The refrigerant inlet and outlet of the movable heat exchanger (3.1) face downward, and the refrigerant inlet and outlet of the movable heat exchanger (3.1) are connected to the compressor via a U-shaped hose to form a refrigerant circuit.

4. The variable structure vehicle cooling module assembly according to claim 1, characterized in that: The coolant provided by the coolant source is ethylene glycol aqueous solution, or aviation coolant, or hydrocarbon and organic silicon compound coolant, or fluorocarbon coolant.

5. The variable structure vehicle cooling module assembly according to claim 1, characterized in that: Multiple cooling modules are distributed on the edges of both sides of the top of the cabin in an array. Channels are provided between adjacent rows, or between adjacent columns, or between adjacent rows and columns in the array corresponding to the top of the cabin. The channels are connected to the environment outside the cabin through air inlets on the vehicle body.

6. The variable structure vehicle cooling module assembly according to claim 1, characterized in that: The horizontal cross-sections of the movable heat exchanger (3.1) and the fixed heat exchanger (5.1) are linear or U-shaped.

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