Exhaust box, exhaust box assembly, cooling system and motor vehicle

Abstract

The disclosure provides an exhaust box, an exhaust box assembly, a cooling system including the exhaust box and / or the exhaust box assembly, and a motor vehicle including the cooling system. The exhaust tank assembly includes an exhaust tank and a fluid connector. The exhaust box comprises a box body, a connecting pipe and a connecting pipe separator. The connecting pipe is connected to the box body and located outside the box body. The connecting pipe separator divides a connecting pipe inlet flow channel and a connecting pipe outlet flow channel which are in fluid communication with the degassing space in the box body in the connecting pipe. The fluid connector includes an inlet section, an outlet section, and a connection section. The connecting section enables the inlet section and the outlet section to be in fluid communication with the connecting pipe inlet flow channel and the connecting pipe outlet flow channel respectively. The fluid connector forms a bypass flow path which communicates the inlet section with the outlet section and is separated from the degassing space, so that one part of the heat transfer fluid flowing in from the inlet section is guided into the degassing space to be degassed, and the other part of the heat transfer fluid does not pass through the degassing space but directly flows to the outlet section through the bypass flow path.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to an exhaust box, an exhaust box assembly, a cooling system including the exhaust box and / or the exhaust box assembly, and a motor vehicle including the cooling system. Background Art

[0002] Motor vehicles usually have a cooling system for cooling down the heat-generating components in the motor vehicle. The cooling system includes a heat transfer fluid circuit and an exhaust tank (also called an expansion tank or an expansion pot). The exhaust tank is connected to the heat transfer fluid circuit through its inlet pipe, outlet pipe and corresponding pipe joints for degassing the heat transfer fluid. Summary of the invention

[0003] According to a first aspect of the present disclosure, the present disclosure provides an exhaust box assembly for a cooling system of a motor vehicle, the exhaust box assembly comprising an exhaust box and a fluid connector. The exhaust box comprises a box body, a connecting pipe and a connecting pipe partition. A degassing space is provided in the box body. The connecting pipe is connected to the box body and is located outside the box body. The connecting pipe partition is arranged in the connecting pipe and extends along the length direction of the connecting pipe to separate a connecting pipe inlet flow channel and a connecting pipe outlet flow channel in the connecting pipe, wherein the connecting pipe inlet flow channel and the connecting pipe outlet flow channel are respectively in fluid communication with the degassing space. The fluid connector comprises an inlet section, an outlet section and a connecting section. The inlet section is used to guide a heat transfer fluid into the exhaust box assembly. The outlet section is used to discharge the heat transfer fluid from the exhaust box assembly. The connecting section is respectively connected to the inlet section, the outlet section and the connecting pipe, so that the inlet section is in fluid communication with the connecting pipe inlet flow channel, and the outlet section is in fluid communication with the connecting pipe outlet flow channel. The fluid connector is configured to form a bypass flow path connecting the inlet section with the outlet section, and the bypass flow path is isolated from the degassing space, so that a portion of the heat transfer fluid flowing in from the inlet section is guided into the degassing space to be degassed, and the other portion of the heat transfer fluid flowing in from the inlet section does not pass through the degassing space, but flows directly to the outlet section via the bypass flow path.

[0004] According to the exhaust box assembly of the first aspect mentioned above, the connecting section is generally tubular, the inlet section and the outlet section are formed by a straight pipe, the straight pipe has a connecting port passing through its pipe wall, and the connecting section is connected to the straight pipe fluid via the connecting port; and wherein, the fluid connector also includes a connector partition, the connector partition generally extends along the axial direction of the connecting section, and includes a first end and a second end opposite to each other, the first end is connected to the connecting pipe partition, and the second end extends between the inlet section and the outlet section and has a gap with the pipe wall of the straight pipe, and the gap forms the bypass flow path.

[0005] According to the exhaust box assembly of the first aspect described above, the connector partition is formed integrally with the inlet section, the outlet section and the connecting section.

[0006] According to the exhaust box assembly of the first aspect, the connecting pipe partition is formed integrally with the connecting pipe.

[0007] According to the exhaust box assembly of the first aspect mentioned above, one end of the connecting pipe is inserted into the connecting section and is provided with a guide portion, and the connecting section is provided with a guide matching portion, and the guide portion cooperates with the guide matching portion so that the connecting pipe is inserted into the connecting section in a predetermined orientation in the rotation direction around its axis.

[0008] According to the exhaust box assembly of the first aspect, the fluid connector further comprises a flow divider seal, which seals and fluidically connects the inlet section and the outlet section to the connecting pipe inlet flow channel and the connecting pipe outlet flow channel, respectively.

[0009] According to a second aspect of the present disclosure, the present disclosure provides an exhaust box for a cooling system of a motor vehicle, the exhaust box comprising a box body, a connecting pipe and a connecting pipe partition. A degassing space is provided in the box body. The connecting pipe is connected to the box body and is located outside the box body. The connecting pipe partition is arranged in the connecting pipe and extends along the length direction of the connecting pipe to separate a connecting pipe inlet flow channel and a connecting pipe outlet flow channel in the connecting pipe, wherein the connecting pipe inlet flow channel and the connecting pipe outlet flow channel are respectively in fluid communication with the degassing space.

[0010] According to the exhaust box of the second aspect, the exhaust box further comprises a flow bypass plate, which is disposed in the degassing space and configured to allow the heat transfer fluid flowing into the degassing space to flow toward the connecting pipe outlet flow channel along a path bypassing the flow bypass plate.

[0011] According to the exhaust box of the second aspect, the bottom of the flow deflector is connected to the bottom wall of the box body, and the top of the flow deflector is not lower than the highest liquid level in the box body.

[0012] According to the exhaust box of the second aspect above, the exhaust box also includes a guide pipe and a guide pipe partition, the guide pipe partition extends along the length direction of the guide pipe, and separates an inlet guide flow channel and a return guide flow channel in the guide pipe, the inlet guide flow channel fluidly connects the degassing space with the connecting pipe inlet flow channel, and the return guide flow channel fluidly connects the degassing space with the connecting pipe outlet flow channel; wherein the flow bypass plate extends along the length direction of the guide pipe and is connected to the guide pipe partition.

[0013] According to the exhaust box of the second aspect, gaps are respectively formed between both ends of the detent plate in the length direction and the side walls of the box body.

[0014] According to the exhaust box according to the second aspect, the connecting pipe, the connecting pipe partition, the flow deflector, the guide pipe, and the guide pipe partition are formed integrally.

[0015] According to a third aspect of the present disclosure, the present disclosure provides a cooling system, comprising the exhaust box assembly according to the first aspect and / or the exhaust box according to the second aspect.

[0016] According to a fourth aspect of the present disclosure, the present disclosure provides a motor vehicle, comprising a cooling system according to the third aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of a motor vehicle according to one embodiment of the present disclosure;

[0018] Figure 2 yes Figure 1 A block diagram of a cooling system for a motor vehicle;

[0019] Figure 3A is a perspective view of an exhaust box assembly according to one embodiment of the present disclosure;

[0020] Figure 3B yes Figure 3A A front view of the exhaust box assembly;

[0021] Figure 3C yes Figure 3A An exploded view of the exhaust box assembly in FIG.

[0022] Figure 3D is along Figure 3B The cross-sectional view of line AA in the figure;

[0023] Figure 3E is along Figure 3D The cross-sectional view of line BB in FIG.

[0024] Figure 3F yes Figure 3DA local enlarged view of point C in FIG.

[0025] Figure 4A yes Figure 3A A perspective view from front to rear of a splitter seal of an exhaust box assembly in FIG.

[0026] Figure 4B yes Figure 3A A perspective view of the diverter seal from the back to the front;

[0027] Figure 4C yes Figure 3A Radial cross-section view of the diverter seal in FIG.

[0028] It should be understood that the accompanying drawings are not necessarily drawn to scale. In some cases, details that are not necessary for understanding the present invention or that make other details difficult to perceive may be omitted. Where appropriate, similar or identical reference numerals are used to represent similar or identical parts. DETAILED DESCRIPTION

[0029] Various specific embodiments of the present disclosure will be described below with reference to the accompanying drawings that form a part of this specification. It should be understood that although terms indicating directions, such as "front", "rear", "upper", "lower", "left", "right", "top", "bottom", etc., are used in the present disclosure to describe various example structural parts and elements of the present disclosure, these terms are used here only for the purpose of convenience of description and are determined based on the example orientations shown in the accompanying drawings. Since the embodiments disclosed in the present disclosure can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0030] Figure 1 A schematic diagram of a motor vehicle 100 according to an embodiment of the present disclosure is shown. The motor vehicle 100 includes a cooling system 110 for providing cooling for heat generating components of the motor vehicle 100.

[0031] Figure 2 A simplified block diagram of the cooling system 110 is shown. Figure 2 As shown, the cooling system 110 includes a heat transfer fluid circuit 200 and an exhaust box assembly 210 connected in the heat transfer fluid circuit 200, a cooled component 220, a heat exchange device 230, and a pump 240. The cooled component 220 is, for example, a battery, a motor, or other components of the motor vehicle 100.

[0032] The heat transfer fluid (e.g., coolant) in the heat transfer fluid loop 200 circulates between the heat exchange device 230 and the component 220, wherein the heat transfer fluid absorbs the heat emitted by the component 220 when flowing through the cooling channel (not shown) of the cooled component 220, and releases the heat when passing through the heat exchange device 230, thereby cooling the component 220 through the circulation of the heat transfer fluid. The pump 240 is used to provide power to circulate the heat transfer fluid.

[0033] During the operation of the cooling system 110, gas is generated in the heat transfer fluid due to heat and other reasons, and excessive gas may affect the normal operation of the cooling system 110. The exhaust box assembly 210 is connected to the heat transfer fluid loop 200 to degas the heat transfer fluid.

[0034] Figures 3A-3F The specific structure of the exhaust box assembly 210 according to an embodiment of the present disclosure is shown, wherein: Figure 3A is a perspective view of the exhaust box assembly 210, Figure 3B is a front view of the exhaust box assembly 210, Figure 3C is an exploded view of the exhaust box assembly 210, Figure 3D is along Figure 3B The cross-sectional view of line AA in the figure, Figure 3E is along Figure 3D The cross-sectional view of line BB in Figure 3F yes Figure 3D A local enlarged view of point C in the figure.

[0035] Reference Figures 3A-3F The exhaust box assembly 210 includes an exhaust box 310, a fluid connector 320, a sealing ring 330, a stop ring 340 and a latch 350. The exhaust box 310 includes a box body 311, a connecting pipe 312, a connecting pipe partition 313, a flow deflector 314, a guide pipe 315 and a guide pipe partition 316.

[0036] The connecting tube 312 is located outside the box body 311, and includes a connecting tube proximal end 3124 connected to the box body 311 and a connecting tube distal end 3125 away from the box body. The connecting tube distal end 3125 is inserted into the fluid connector 320 and fixedly connected to the fluid connector 320 through a latch 350. The sealing ring 330 is sleeved on the connecting tube 312 and clamped between the fluid connector 320 and the connecting tube 312 to seal the fluid connector 320 and the connecting tube 312. The limiting ring 340 is sleeved on the connecting tube 312 to limit the sealing ring 330.

[0037] The connecting pipe partition 313, which is substantially plate-shaped, is disposed in the connecting pipe 312 and extends along the length direction of the connecting pipe 312. Figure 3EThe vertical direction of the orientation shown) is along the radial direction of the connecting pipe 312, and the opposite sides of the connecting pipe partition 313 in the width direction are respectively connected to the pipe wall of the connecting pipe 312, thereby separating the connecting pipe inlet flow channel 3121 and the connecting pipe outlet flow channel 3122 in the connecting pipe 312.

[0038] The fluid connector 320 includes an inlet section 321, an outlet section 322, a connecting section 323, and a connector partition 327. The inlet section 321 and the outlet section 322 are connected to other pipelines of the heat transfer fluid circuit 200. The inlet section 321 is used to guide the heat transfer fluid into the exhaust box assembly 210, and the outlet section 322 is used to discharge the heat transfer fluid out of the exhaust box assembly 210. The connecting section 323 is connected to the inlet section 321, the outlet section 322, and the connecting pipe 312, respectively, so that the inlet section 321 is in fluid communication with the connecting pipe inlet flow channel 3121, and the outlet section 322 is in fluid communication with the connecting pipe outlet flow channel 3122.

[0039] Specifically, the inlet section 321, the outlet section 322 and the connecting section 323 are respectively generally tubular, and the fluid connector 320 is a three-way pipe joint structure as a whole when viewed from the outside. The inlet section 321 and the outlet section 322 are formed by a straight pipe 325, and the two ends of the straight pipe 325 respectively form the inlet section 321 and the outlet section 322, and the straight pipe 325 is generally perpendicular to the axial direction of the connecting section 323. The straight pipe 325 has a connecting port 3251 passing through its pipe wall. The connecting section 323 includes a connecting section proximal end 3231 and a connecting section distal end 3232 opposite to each other. The connecting section proximal end 3231 is in fluid communication with the straight pipe 325 via the connecting port 3251, thereby being in fluid communication with the inlet section 321 and the outlet section 322. The connecting pipe 312 is inserted into the connecting section 323 via the connecting section distal end 3232.

[0040] The connector partition 327 is generally plate-shaped and extends along the axial direction of the connecting section 323. The connector partition 327 includes a first end 3271 and a second end 3272 opposite to each other in the length direction. The first end 3271 is connected to the connecting pipe partition 313, and the second end 3272 extends between the inlet section 321 and the outlet section 322. The width direction of the connector partition 327 (i.e., according to Figure 3EThe connector separator 327 is connected to the wall of the connecting section 323 and the inner wall of the straight tube 325 in the width direction of the connector separator 327, thereby separating the connector inlet flow channel 3201 and the connector outlet flow channel 3202 in the fluid connector 320. The connector inlet flow channel 3201 fluidically connects the inlet section 321 with the connecting tube inlet flow channel 3121, and the connector outlet flow channel 3202 fluidically connects the outlet section 322 with the connecting tube outlet flow channel 3122. There is a gap 328 between the connector separator 327 and the tube wall of the straight tube 325, and the gap 328 connects the inlet section 321 and the outlet section 322, thereby forming a bypass flow path 329 which will be described in detail below.

[0041] A guide portion 3123 is provided at the distal end 3125 of the connecting tube 312, and a guide fitting portion 3233 is provided at the distal end 3232 of the connecting segment 323 of the fluid connector 320. The guide portion 3123 cooperates with the guide fitting portion 3233 so that the connecting tube 312 is inserted into the connecting segment 323 in a predetermined orientation (or orientation) in the rotation direction around its axis, so that the connector partition 327 is aligned with the connecting tube partition 313 in the circumferential direction, that is, the two appear to extend continuously, so as to quickly and accurately connect the connecting tube 312 and the fluid connector 320.

[0042] In the illustrated embodiment, the guide portion 3123 is a protrusion protruding radially outward from the outer circumference of the connecting tube 312 and extending along the axial direction of the connecting tube 312, and the guide matching portion 3233 is a groove recessed radially outward from the inner wall of the connecting section 323 and extending along the axial direction of the connecting section 323. Two guide portions 3123 are provided on opposite sides in the radial direction of the connecting tube 312, and correspondingly, two guide matching portions 3233 are provided on opposite sides in the radial direction of the connecting section 323.

[0043] Two openings 3234 passing through the tube wall are provided on opposite sides of the connecting section 323 in the radial direction, and two slots 3126 are provided on opposite sides of the connecting tube 312 in the radial direction. Each slot 3126 extends along the circumference of the connecting tube 312 on the outer wall of the connecting tube 312 and connects the two guide portions 3123. The latch 350 is, for example, a substantially U-shaped elastic clip, including two substantially parallel legs 351, each leg 351 passing through one of the openings 3234 of the fluid connector 320 and being inserted into one of the slots 3126 of the connecting tube 312.

[0044] The connector partition 327 of the fluid connector 320 is formed integrally with the inlet section 321, the outlet section 322 and the connection section 323, for example, by molding or injection molding, to facilitate manufacturing and assembly, and to ensure the sealing of the connection parts to avoid fluid leakage.

[0045] It is worth noting that although in the illustrated embodiment, the inlet section 321 and the outlet section 322 are formed by a straight tube 325 that is substantially perpendicular to the axial direction of the connecting section 323 for ease of design and manufacturing, in other embodiments, the straight tube 325 can be configured to form a non-90-degree angle with the axial direction of the connecting section 323, or the inlet section 321 and the outlet section 322 can be formed by a bent tube, or the inlet section 321, the outlet section 322 and the connecting section 323 can be respectively formed by three sections of tubes, and the three sections of tubes are interconnected to form a Y shape or other shapes.

[0046] 3A-3F, the exhaust box 310 is connected to the heat transfer fluid circuit 200 through the connecting tube 312 and the fluid connector 320. In operation, the exhaust box 310 is designed according to Figure 3B and 3E The orientation shown is arranged so that the direction of gravity is substantially along Figure 3B and 3E The vertical direction in .

[0047] The box body 311 has a degassing space 3111, and the degassing space 3111 contains the degassed heat transfer fluid and the gas above the liquid surface of the heat transfer fluid. The box body 311 includes a top wall 3112, a bottom wall 3113 and a side wall 3114. The top wall 3112 is opposite to the bottom wall 3113, and the side wall 3114 connects the top wall 3112 and the bottom wall 3113. Figure 3E In the orientation shown, the top wall 3112 is located above the degassing space 3111, i.e., on the side close to the gas, and the bottom wall 3113 is located below the degassing space 3111, i.e., on the side close to the heat transfer fluid. The connecting pipe inlet flow channel 3121 and the connecting pipe outlet flow channel 3122 are in fluid communication with the degassing space 3111 to guide the heat transfer fluid to flow into and out of the degassing space 3111, respectively.

[0048] Thus, the heat transfer fluid in the heat transfer fluid circuit 200 flows from the inlet section 321 of the fluid connector 320 through the connector inlet channel 3201 and the connecting pipe inlet channel 3121 into the degassing space 3111 in the box body 311 for degassing. The degassed heat transfer fluid flows to the outlet section 322 of the fluid connector 320 through the connecting pipe outlet channel 3122 and the connector outlet channel 3202, and then flows into other pipelines in the heat transfer fluid circuit 200.

[0049] The guide tube 315 is disposed inside the box body 311. The guide tube partition 316 is generally plate-shaped and extends along the length direction of the guide tube 315. The guide tube partition 316 is Figure 3EThe vertical direction of the orientation shown in FIG31 is along the radial direction of the guide tube 315, and the opposite sides of the guide tube partition 316 in the width direction are respectively connected to the tube wall of the guide tube 315, thereby separating the inlet guide flow channel 3151 and the return guide flow channel 3152 in the guide tube 315. The inlet guide flow channel 3151 and the return guide flow channel 3152 are in fluid communication with the degassing space 3111.

[0050] The guide tube 315 has the same inner diameter as the connecting tube 312 and is coaxially connected to the connecting tube 312. The guide tube partition 316 extends along the length direction of the connecting tube partition 313, and one end of the guide tube partition 316 in the length direction is connected to one end of the connecting tube partition 313 in the length direction, so that the inlet guide channel 3151 is fluidly connected to the connecting tube inlet channel 3121, and the reflux guide channel 3152 is fluidly connected to the connecting tube outlet channel 3122, thereby connecting the degassing space 3111 to the connecting tube inlet channel 3121 through the inlet guide channel 3151, and connecting the degassing space 3111 to the connecting tube outlet channel 3122 through the reflux guide channel 3152.

[0051] The lower portion of the guide tube 315 (according to Figure 3E The bottom wall 3113 of the box body 311 is connected to the bottom wall 3113 of the box body 311, that is, the bottom wall 3113 of the box body 311 provides part of the tube wall of the guide tube 315, so as to promote the gas in the heat transfer fluid to be discharged upward by gravity, and facilitate the degassed heat transfer fluid to be fully discharged from the degassing space 3111.

[0052] It is worth noting that although in the illustrated embodiment, the guide tube 315 has the same inner diameter as the connecting tube 312 and is coaxially connected to the connecting tube 312 for ease of design and manufacturing, in other embodiments, the inner diameter and / or direction of the guide tube 315 and the connecting tube 312 may be different.

[0053] Continue to refer to Figures 3A-3F The flow deflector plate 314 is arranged in the degassing space 3111, the bottom 3141 of the flow deflector plate 314 is connected to the bottom wall 3113 of the box body 311, the top 3142 of the flow deflector plate 314 is not lower than the highest liquid level in the box body 311 (that is, the designed nominal liquid level), and the flow deflector plate 314 extends along the length direction of the guide tube 315 and is connected to the guide tube partition 316, thereby forcing the heat transfer fluid flowing into the degassing space 3111 from the inlet guide channel 3151 to flow to the return guide channel 3152 along a longer curved path bypassing the flow deflector plate 314, so as to improve the degassing effect of the heat transfer fluid.

[0054] There is a gap between the opposite ends 3143, 3144 of the flow bypass plate 314 in the length direction and the side wall 3114 of the box body 311, so that the heat transfer fluid flowing into the degassing space 3111 from the inlet guide channel 3151 flows along two generally U-shaped paths bypassing the two ends 3143, 3144 of the flow bypass plate 314, and then flows into the return guide channel 3152. Figure 3D The U-shaped flow path of the heat transfer fluid is schematically shown by arrows in FIG. 1 . It should be noted that since the lower part of the guide pipe 315 is connected to the bottom wall 3113 of the box body 311, the heat transfer fluid only flows along the guide pipe 315 at a level not higher than the guide pipe 315. Figure 3D The heat transfer fluid flows along the U-shaped path shown by the solid line in FIG. 31 , and above the guide tube 315, the heat transfer fluid flows along Figure 3D The U-shaped path shown by the solid line in the figure flows along Figure 3D The U-shaped path flow is shown by the dashed line.

[0055] It is worth noting that, although in the illustrated embodiment, the two opposite ends 3143, 3144 of the flow deflector 314 in the length direction have gaps with the side wall 3114 of the box body 311, in other embodiments, only one of the two ends 3143, 3144 of the flow deflector 314 may have a gap with the side wall 3114 of the box body 311. In addition, although in the illustrated embodiment, the flow deflector 314 is configured as a flat plate extending in the length direction of the guide tube 315 for ease of manufacturing, in other embodiments, the flow deflector 314 may be configured to extend in other directions and / or be configured to have other shapes.

[0056] Continue to refer to Figures 3A-3F The box body 311 is a split structure, including an upper box body 3116 and a lower box body 3117, and the upper box body 3116 and the lower box body 3117 respectively define the upper half and the lower half of the degassing space 3111 (according to Figure 3E The connecting pipe 312, the connecting pipe partition 313, the flow bypass plate 314, the guide pipe 315, and the guide pipe partition 316 are integrally formed with the lower box body 3117, for example, by molding or injection molding, so as to facilitate manufacturing and assembly, and to ensure the sealing of the connection parts to avoid fluid leakage.

[0057] As can be seen from the above, in order to fully degas the heat transfer fluid in the degassing space 3111, the flow path for guiding the degassing of the heat transfer fluid is set to be relatively long. If the entire flow of the heat transfer fluid flowing into the exhaust box assembly 210 from the inlet section 321 passes through the degassing space 3111 via the above flow path for degassing, a large pressure drop will be generated in the heat transfer fluid loop. In order to ensure that the circulation pressure of the heat transfer fluid loop meets the requirements, the exhaust box assembly 210 forms the aforementioned bypass flow path 329 connecting the inlet section 321 and the outlet section 322 in the fluid connector 320, and the bypass flow path 329 is isolated from the degassing space 3111, so that a part of the heat transfer fluid flowing in from the inlet section 321 is guided to the degassing space 3111, and flows into the outlet section 322 after being degassed in the degassing space 3111, while the other part of the heat transfer fluid flowing in from the inlet section 321 does not pass through the degassing space 3111, but directly flows to the outlet section 322 via the bypass flow path 329. By designing the size of the gap 328 between the connector partition 327 and the straight tube 325, the flow rate of the heat transfer fluid flowing into the degassing space 3111 can be conveniently and accurately controlled. The structure is simple and easy to design and manufacture.

[0058] As an optional configuration, the exhaust box 310 further includes a flow limiting structure 317 disposed in the inlet flow guide channel 3151 to further limit the flow rate of the heat transfer fluid flowing into the degassing space 3111. Specifically, the flow limiting structure 317 is a stopper formed integrally with the guide pipe 315, and is disposed at one end of the inlet flow guide channel 3151 away from the connecting pipe 312 to block a portion of the cross section of the inlet flow guide channel 3151. Therefore, by designing the size of the flow limiting structure 317, the flow rate of the heat transfer fluid flowing into the degassing space 3111 can be conveniently and accurately controlled, and the structure is simple and easy to design and manufacture.

[0059] Therefore, by selecting one of the exhaust boxes 310 from a plurality of exhaust boxes 310 having flow limiting structures 317 of different sizes and / or selecting one of the fluid connectors 320 from a plurality of fluid connectors 320 having gaps 328 of different sizes to form the exhaust box assembly 210, a variety of proportional relationships between the flow rate of the bypass flow path 329 and the flow rate of the degassing flow path passing through the degassing space 3111 can be easily obtained to meet the needs of various application environments.

[0060] Optionally, the size of the gap 328 and / or the flow limiting structure 317 between the connector partition 327 and the straight tube 325 is configured so that 10% to 40% of the total flow of the heat transfer fluid flowing in from the inlet section 321 of the fluid connector 320 enters the degassing space 3111 for degassing, and the remaining flow bypasses the degassing space 3111 via the bypass flow path 329.

[0061] As an optional configuration, the fluid connector 320 also includes a diverter seal 324, which seals the inlet section 321 and the outlet section 322 to fluidically connect the connecting pipe inlet flow channel 3121 and the connecting pipe outlet flow channel 3122 respectively, thereby more accurately controlling the proportional relationship between the flow of the bypass flow path 329 and the degassing flow path.

[0062] Figures 4A-4C The specific structure of the diverter seal 324 is shown, wherein: Figure 4A is a perspective view of the diverter seal 324 viewed from the front to the rear, Figure 4B is a perspective view of the diverter seal 324 viewed from the rear to the front, Figure 4C is a radial cross-sectional view of the flow splitter seal 324 .

[0063] Reference Figures 4A-4C , the flow dividing seal 324 includes a radial sealing portion 3241 and a circumferential sealing portion 3242. The circumferential sealing portion 3242 is arranged around the radial sealing portion 3241, and the radial sealing portion 3241 is connected to the circumferential sealing portion 3242 through the opposite ends 4243 in the length direction thereof. The axial length of the radial sealing portion 3241 is greater than the axial length of the circumferential sealing portion 3242. The radial sealing portion 3241 includes end sealing surfaces 4244 located at the opposite ends 4243 thereof and extending in the axial direction, and a radial sealing surface 4245 connecting the end sealing surfaces 4244. The radial sealing surface 4245 extends in the radial direction and is located on the side of the radial sealing portion 3241 away from the circumferential sealing portion 3242.

[0064] The radial seal portion 3241 has a cavity 4246 formed inside thereof for receiving the first end 3271 of the connector partition 327. The opening of the cavity 4246 is located on the side of the radial seal portion 3241 close to the circumferential seal portion 3242. The flow divider seal 324 is made of an elastic material, for example, formed integrally from a rubber material. The size of the cavity 4246 is designed to be slightly smaller than the size of the first end 3271 of the connector partition 327, so that the radial seal portion 3241 can be wrapped around the connector partition 327 to keep the flow divider seal 324 in the fluid connector 320 through the connector partition 327.

[0065] Reference Figures 3A-3F, the inner diameter of the proximal end 3231 of the connection section of the fluid connector 320 is larger than the size of the communication port 3251, so that a step surface 326 is formed between the communication port 3251 and the proximal end 3231 of the connection section. The first end 3271 of the connector partition 327 extends from the communication port 3251 of the straight tube 325 beyond the step surface 326 and enters the connection section 323. The end of the connection tube partition 313 close to the distal end 3125 of the connection tube is retracted toward the inside of the connection tube 312 relative to the end surface of the distal end 3125 of the connection tube. When the fluid connector 320 receives and fixes the connection tube 312, the connection tube 312 is located in the connection section 323 of the fluid connector 320, and the first end 3271 of the connector partition 327 and the radial sealing portion 3241 of the flow dividing seal 324 retained thereon at least partially extend into the connection tube 312. The radial sealing portion 3241 of the flow dividing seal 324 is clamped between the connector partition 327 and the connecting pipe partition 313, and its radial sealing surface 4245 abuts against the connecting pipe partition 313. In addition, the two end sealing surfaces 4244 of the radial sealing portion 3241 abut against the inner surface of the connecting pipe 312. The circumferential sealing portion 3242 of the flow dividing seal 324 is clamped between the end surface of the connecting pipe distal end 3125 and the step surface 326 of the fluid connector 320.

[0066] Thus, the circumferential sealing portion 3242 of the diverter seal 324 seals and connects the connecting pipe 312 with the connecting port 3251, and the radial sealing portion 3241 of the diverter seal 324 seals and connects the connecting pipe partition 313 with the connector partition 327, thereby sealingly fluidically connecting the inlet section 321 of the fluid connector 320 with the connecting pipe inlet channel 3121, and sealingly fluidically connecting the outlet section 322 of the fluid connector 320 with the connecting pipe outlet channel 3122, so as to more accurately control the proportional relationship between the flow rates of the bypass flow path 329 and the degassing flow path.

[0067] It is worth noting that although in the illustrated embodiment, the connector partition 327 is connected to the connecting pipe partition 313 through the diverter seal 324, in other embodiments, the connector partition 327 may not be provided, or the connector partition 327 may be provided by the connecting pipe partition 313, provided that the proportional relationship between the flow rates of the bypass flow path 329 and the degassing flow path meets the requirements. For example, the connecting pipe 312 is inserted between the inlet section 321 and the outlet section 323 of the fluid connector 320, and there is a gap between the distal end 3125 of the connecting pipe and the pipe wall of the connecting pipe partition 313 and the straight pipe 325, so that the inlet section 321 and the outlet section 323 are connected to form a bypass flow path. Furthermore, a portion of the pipe wall of the connecting pipe 312 facing the inlet section 321 and the pipe wall facing the outlet section 323 may be cut off to facilitate the heat transfer fluid to flow from the inlet section 321 into the connecting pipe 312 and from the connecting pipe 312 into the outlet section 323.

[0068] According to the exhaust box assembly of the embodiment of the present disclosure, by separating the connecting pipe inlet flow channel and the connecting pipe outlet flow channel in the connecting pipe, and separating the connector inlet flow channel and the connector outlet flow channel in the fluid connector, only one connecting pipe and one fluid connector are needed to connect the exhaust box to the heat transfer fluid circuit. Compared with the conventional solution of connecting the exhaust box to the heat transfer fluid circuit through two separate pipelines of the inlet pipeline and the outlet pipeline and the corresponding pipe joints, it can save space, reduce the number of parts (such as pipelines, pipe joints, pipe clamps, etc.), facilitate manufacturing and installation, and reduce costs. In addition, according to the exhaust box assembly of the embodiment of the present disclosure, the connector separator of the fluid connector for separating the two flow channels and the straight pipe for forming the inlet section and the outlet section are used to form a bypass flow path, so there is no need to add an additional bypass pipeline structure, which can further simplify the structure and save space, reduce the number of parts, facilitate design and manufacturing, and reduce assembly operation steps.

[0069] Although the present disclosure has been described in conjunction with the examples of the embodiments summarized above, various alternatives, modifications, changes, improvements and / or substantially equivalent solutions, whether known or currently or foreseeable in the near future, may be apparent to those of ordinary skill in the art. In addition, the technical effects and / or technical problems described in this specification are exemplary rather than restrictive; so the disclosure in this specification may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Therefore, the examples of the embodiments of the present disclosure as stated above are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is intended to include all known or earlier developed alternatives, modifications, changes, improvements and / or substantially equivalent solutions.

Claims

1. An exhaust box assembly (210) for a cooling system (110) of a motor vehicle (100), the exhaust box assembly (210) comprising: An exhaust box (310), the exhaust box (310) comprising: A box body (311), wherein the box body (311) has a degassing space (3111); a connecting pipe (312), the connecting pipe (312) being connected to the box (311) and being located outside the box (311); and a connecting pipe partition (313), the connecting pipe partition (313) being arranged in the connecting pipe (312) and extending along the length direction of the connecting pipe (312) so as to separate a connecting pipe inlet flow channel (3121) and a connecting pipe outlet flow channel (3122) in the connecting pipe (312), wherein the connecting pipe inlet flow channel (3121) and the connecting pipe outlet flow channel (3122) are respectively in fluid communication with the degassing space (3111); and A fluid connector (320), the fluid connector (320) comprising: an inlet section (321), the inlet section (321) being used to direct a heat transfer fluid into the exhaust box assembly (210); an outlet section (322) for exhausting the heat transfer fluid out of the exhaust box assembly (210); and a connecting section (323), the connecting section (323) being connected to the inlet section (321), the outlet section (322) and the connecting pipe (312) respectively, so that the inlet section (321) is in fluid communication with the inlet flow channel (3121) of the connecting pipe, and the outlet section (322) is in fluid communication with the outlet flow channel (3122) of the connecting pipe; The fluid connector (320) is configured to form a bypass flow path (329) connecting the inlet section (321) and the outlet section (322), and the bypass flow path (329) is isolated from the degassing space (3111), so that a portion of the heat transfer fluid flowing in from the inlet section (321) is guided into the degassing space (3111) to be degassed, and the other portion of the heat transfer fluid flowing in from the inlet section (321) does not pass through the degassing space (3111), but flows directly to the outlet section (322) via the bypass flow path (329).

2. The exhaust box assembly (210) according to claim 1, characterized in that: The connecting section (323) is generally tubular, the inlet section (321) and the outlet section (322) are formed by a straight tube (325), the straight tube (325) has a communication port (3251) passing through the tube wall thereof, and the connecting section (323) is in fluid communication with the straight tube (325) via the communication port (3251); and The fluid connector (320) further includes a connector partition (327), which generally extends along the axial direction of the connecting section (323) and includes a first end (3271) and a second end (3272) opposite to each other, wherein the first end (3271) is connected to the connecting tube partition (313), and the second end (3272) extends between the inlet section (321) and the outlet section (322) and has a gap (328) with the tube wall of the straight tube (325), and the gap (328) forms the bypass flow path (329).

3. The exhaust box assembly (210) according to claim 2, characterized in that: The connector partition (327) is formed integrally with the inlet section (321), the outlet section (322) and the connecting section (323).

4. The exhaust box assembly (210) according to claim 1, characterized in that: The connecting pipe partition (313) is formed integrally with the connecting pipe (312).

5. The exhaust box assembly (210) according to claim 1, characterized in that: One end of the connecting tube (312) is inserted into the connecting section (323) and is provided with a guide portion (3123), and the connecting section (323) is provided with a guide matching portion (3233), and the guide portion (3123) cooperates with the guide matching portion (3233) so that the connecting tube (312) is inserted into the connecting section (323) in a predetermined orientation in the rotation direction around its axis.

6. The exhaust box assembly (210) according to claim 1, characterized in that: The fluid connector (320) further includes a flow divider seal (324), which seals the inlet section (321) and the outlet section (322) in sealed fluid communication with the connecting pipe inlet flow channel (3121) and the connecting pipe outlet flow channel (3122), respectively.

7. An exhaust box (310) for a cooling system (110) of a motor vehicle (100), the exhaust box (310) comprising: A box body (311), wherein the box body (311) has a degassing space (3111); a connecting pipe (312), the connecting pipe (312) being connected to the box (311) and being located outside the box (311); and A connecting pipe partition (313), wherein the connecting pipe partition (313) is arranged in the connecting pipe (312) and extends along the length direction of the connecting pipe (312) to separate a connecting pipe inlet flow channel (3121) and a connecting pipe outlet flow channel (3122) in the connecting pipe (312), wherein the connecting pipe inlet flow channel (3121) and the connecting pipe outlet flow channel (3122) are respectively connected to the degassing space (3111) fluid.

8. The exhaust box (310) according to claim 7, characterized in that: The exhaust box (310) further comprises a flow bypass plate (314), wherein the flow bypass plate (314) is disposed in the degassing space (3111) and is configured such that the heat transfer fluid flowing into the degassing space (3111) flows toward the connecting pipe outlet flow channel (3122) along a path bypassing the flow bypass plate (314).

9. The exhaust box (310) according to claim 8, characterized in that: The bottom (3141) of the flow bypass plate (314) is connected to the bottom wall (3113) of the box body (311), and the top (3142) of the flow bypass plate (314) is not lower than the highest liquid level in the box body (311).

10. The exhaust box (310) according to claim 8, characterized in that: The exhaust box (310) further comprises a guide pipe (315) and a guide pipe partition (316), wherein the guide pipe partition (316) extends along the length direction of the guide pipe (315) and separates an inlet guide flow channel (3151) and a return guide flow channel (3152) in the guide pipe (315), wherein the inlet guide flow channel (3151) fluidically connects the degassing space (3111) with the connecting pipe inlet flow channel (3121), and the return guide flow channel (3152) fluidically connects the degassing space (3111) with the connecting pipe outlet flow channel (3122); The flow bypass plate (314) extends along the length direction of the guide pipe (315) and is connected to the guide pipe partition (316).

11. The exhaust box (310) according to claim 10, characterized in that: There is a gap between the two ends (3143, 3144) of the flow deflection plate (314) in the length direction and the side wall (3114) of the box body (311).

12. The exhaust box (310) according to claim 10, characterized in that: The connecting pipe (312), the connecting pipe partition (313), the flow bypass plate (314), the guide pipe (315) and the guide pipe partition (316) are formed integrally.

13. A cooling system (110), comprising an exhaust box assembly (210) according to any one of claims 1-6, and / or comprising an exhaust box (310) according to any one of claims 7-12.

14. A motor vehicle (100) comprising a cooling system (110) according to claim 13.

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