Straddle carrier cross beam and air system comprising same

Abstract

The utility model relates to a straddle carrier cross beam and an air system comprising the straddle carrier cross beam. Wherein the straddle carrier cross beam comprises a front part, a rear part and a rear part, and the front part comprises a first cross beam part extending in the transverse direction; the rear part comprises a second cross beam part extending in the transverse direction; the front part and the rear part are split parts and can be detachably connected, and the first cross beam part and the second cross beam part can form an airflow channel which is connected with a heating ventilation and air conditioning system and an air outlet respectively after being detachably connected; a partition plate is arranged in the air flow channel and divides the air flow channel, so that the air flow channel at least comprises a first flow channel and a second flow channel which are separated, the first flow channel corresponds to a defrosting air outlet, and the second flow channel corresponds to an air outlet of a passenger air conditioner.

Description

TECHNICAL FIELD

[0001] The present application relates to a cross car beam and an air system comprising the same. BACKGROUND

[0002] A cross car beam (CCB), generally a structural component of a vehicle's instrument panel, can connect two A-pillars at both ends in the transverse direction, providing load-bearing function of the instrument panel, as well as modal, crash and mass performance.

[0003] The instrument panel is generally provided with air vents to provide air conditioning and other functions. In the prior art, the cross car beam as a structural member is provided with air ducts around it to output airflow to the air vents. The above structure needs to be further compact to meet the installation space requirements of the vehicle.

[0004] Therefore, there is a need in the art for a cross car beam and an air system comprising the same to solve at least one of the above problems. SUMMARY

[0005] The purpose of the present application is to provide a cross car beam.

[0006] The purpose of the present application is also to provide an air system.

[0007] According to the first aspect of the present application, a cross car beam comprises: a front part comprising a first cross beam part extending in the transverse direction; a rear part comprising a second cross beam part extending in the transverse direction; the front part and the rear part are separate parts and can be detachably connected, the first cross beam part and the second cross beam part can be detachably connected to form an airflow passage connected with a heating, ventilation and air conditioning system and an air outlet respectively; a partition is arranged in the airflow passage, the partition separates the airflow passage, so that the airflow passage comprises at least a first flow channel and a second flow channel separated by the partition, the first flow channel corresponds to a defrost air outlet, and the second flow channel corresponds to a passenger air conditioning air outlet.

[0008] In one or more embodiments of the cross car beam, the first flow channel has a first airflow outlet at a first end in the transverse direction, a second airflow outlet at a second end in the transverse direction, and a first airflow inlet and a second airflow inlet isolated from each other at a middle region in the transverse direction, the first airflow inlet and the first airflow outlet form a first sub-flow channel, and the second airflow inlet and the second airflow outlet form a second sub-flow channel; the second flow channel has a third airflow outlet at a first end in the transverse direction, a fourth airflow outlet at a second end in the transverse direction, and a third airflow inlet and a fourth airflow inlet isolated from each other at a middle region in the transverse direction, the third airflow inlet and the third airflow outlet form a third sub-flow channel, and the fourth airflow inlet and the fourth airflow outlet form a fourth sub-flow channel.

[0009] In one or more embodiments of the cross-car beam, the second flow passage further has a fifth air inlet and a fifth air outlet in the middle region in the transverse direction, and a fifth sub-flow passage is formed between the fifth air inlet and the fifth air outlet.

[0010] In one or more embodiments of the cross-car beam, the front portion further comprises a first longitudinal beam portion extending along the longitudinal direction from the first beam portion, and the rear portion further comprises a second longitudinal beam portion extending along the longitudinal direction from the second beam portion, and the first longitudinal beam portion and the second longitudinal beam portion are used to connect the floor of the vehicle to support the air flow passage formed by the first beam portion and the second beam portion.

[0011] In one or more embodiments of the cross-car beam, the first longitudinal beam portion comprises a first longitudinal beam and a second longitudinal beam, the first longitudinal beam and the second longitudinal beam surround the first flow passage and the second flow passage in the middle region in the transverse direction, and the first longitudinal beam and the second longitudinal beam are connected by the first beam; the second longitudinal beam portion comprises a third longitudinal beam and a fourth longitudinal beam, the third longitudinal beam is arranged adjacent to the first air outlet and the third air outlet in the transverse direction, and the fourth longitudinal beam is arranged adjacent to the second air outlet and the fourth air outlet in the transverse direction.

[0012] In one or more embodiments of the cross-car beam, the outer surfaces of the first beam portion and the second beam portion are provided with matched first connecting portions and second connecting portions, and the first connecting portions and the second connecting portions can be detachably connected by connectors, so that the front portion and the rear portion can be detachably connected.

[0013] In one or more embodiments of the cross-car beam, the rear portion comprises a composite material member and a metal member, the base body of the composite material member is plastic, and the reinforcing body is fiber, the composite material member provides the second beam portion and the second longitudinal beam portion, and the metal member is embeddedly connected to the composite material member.

[0014] In one or more embodiments of the cross-car beam, the base body of the composite material member is PA66 plastic, the reinforcing body is 30% glass fiber, the material of the metal member is steel, and the metal member is matched in shape with the second beam portion.

[0015] According to the second aspect of the present application, an air system comprises the cross-car beam according to the first aspect, and a heating, ventilation and air conditioning system and an air outlet, and the cross-car beam is fluidly connected to the heating, ventilation and air conditioning system and the air outlet as an air flow passage.

[0016] In one or more embodiments of the air system, the defrost air outlet includes a first defrost air outlet connected to a first end of the air flow channel in a transverse direction, a second defrost air outlet connected to a second end of the air flow channel in the transverse direction, a defrost air outlet as a side window, and a third defrost air outlet directly connected to the heating, ventilation and air conditioning system as a defrost air outlet as a front windshield.

[0017] The beneficial effects of the above embodiments include, but are not limited to, the front and rear parts are detachably connected to each other, thereby forming an air flow channel connected to the heating, ventilation and air conditioning system and the air outlet, respectively, and a partition is arranged in the air flow channel, so that the air flow channel includes at least a first flow passage and a second flow passage separated from each other, the first flow passage corresponds to the defrost air outlet, and the second flow passage corresponds to the passenger air conditioning air outlet, so that the cross-car beam functions as a structural member and an air flow channel at the same time, thereby reducing or even eliminating the need for a dedicated pipeline connecting the air conditioning system and the air outlet in the vehicle, and further compacting the structure of the air system to meet the installation space requirements of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other features, properties, and advantages of the present application will become more apparent by describing in detail the following embodiments with reference to the accompanying drawings and examples, in which:

[0019] Figure 1 A structural schematic diagram of a vehicle according to an embodiment.

[0020] Figure 2 A schematic diagram of an air system according to an embodiment.

[0021] Figure 3 A partial cross-sectional schematic diagram of an air system according to an embodiment.

[0022] Figure 4 A partial cross-sectional schematic diagram of a cross-car beam according to an embodiment.

[0023] Figure 5 A structural schematic diagram of a metal member of a cross-car beam according to an embodiment.

[0024] Figure 6 A structural schematic diagram of a rear part of a cross-car beam according to an embodiment.

[0025] Figure 7 A structural schematic diagram of a front part of a cross-car beam according to an embodiment.

[0026] REFERENCE NUMERALS:

[0027] 1000 - air system

[0028] 10 - cross-car beam

[0029] 100 - air flow passage

[0030] 101 - first air flow passage

[0031] 1011 - first air flow outlet

[0032] 1012 - second air flow outlet

[0033] 1013 - first air flow inlet

[0034] 1014 - second air flow inlet

[0035] 10101 - first flow divider

[0036] 10102 - second flow divider

[0037] 102 - second air flow passage

[0038] 1021 - third air flow outlet

[0039] 1022 - fourth air flow outlet

[0040] 1023 - third air flow inlet

[0041] 1024 - fourth air flow inlet

[0042] 1025 - fifth air flow inlet

[0043] 1026 - fifth air flow outlet

[0044] 10201 - third flow divider

[0045] 10202 - fourth flow divider

[0046] 10203 - fifth flow divider

[0047] 103 - bulkhead

[0048] 1 - front portion

[0049] 11 - first cross beam portion

[0050] 111 - first connecting portion

[0051] 12 - first longitudinal beam portion

[0052] 121 - first longitudinal beam

[0053] 122 - second longitudinal beam

[0054] 2 - rear portion

[0055] 201 - composite piece

[0056] 202 - metal piece

[0057] 21 - second cross beam portion

[0058] 211 - second connecting portion

[0059] 22 - second longitudinal beam portion

[0060] 221 - third longitudinal beam

[0061] 222 - fourth longitudinal beam

[0062] 3 - connecting member

[0063] 20 - heating, ventilation and air conditioning system

[0064] 30 - air outlet

[0065] 31 - defrost air outlet

[0066] 311 - first defrost air outlet

[0067] 312 - second defrost air outlet

[0068] 313 - third defrost air outlet

[0069] 32 - passenger air conditioning air outlet

[0070] 321 - first passenger air conditioning air outlet

[0071] 322 - second passenger air conditioning air outlet

[0072] 323 - third passenger air conditioning air outlet DETAILED DESCRIPTION

[0073] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0074] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0075] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified.

[0076] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a common or identical embodiment, although they can. As will be understood by one of ordinary skill in the art upon reading this disclosure, one or more embodiments of the application can be combinable with another embodiment of the application.

[0077] In the description of the embodiments of the present application, the relative position or positional relationship indicated by the technical terms“center”,“longitudinal”,“lateral”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“back”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like are based on the position or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0078] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connecting”,“connecting”,“fixing” and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, and those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific circumstances.

[0079] While the cross-car beam disclosed in the embodiments of the present application is applicable to the instrument panel of a vehicle, examples of the vehicle include, but are not limited to, a car, a truck and a bus. The number of wheels can vary between different types of vehicles, and one or more (e.g., all) wheels can be used for propulsion of the vehicle. The vehicle can include a passenger compartment that accommodates one or more persons. At least one vehicle passenger can be considered a driver; various tools, implements or other devices can then be provided to the driver. In examples herein, any person carried by the vehicle is collectively referred to as an“occupant”, which can be referred to as a“driver” or a“passenger” of the vehicle, regardless of whether the person is driving the vehicle, or whether the person has access to, or lacks access to, control devices for driving the vehicle. As used herein, a cross-car beam is a structural component installed in any type of vehicle so as to substantially span from one side of the vehicle to the opposite side of the vehicle. That is, the cross-car beam can be used in a variety of types of vehicles, some (but not necessarily all) of which can be automobiles. For example, the cross-car beam can extend between the left and right A-pillars of an automobile.

[0080] In the embodiments, the meanings of the front and rear, "front" and "rear" are a pair of relative concepts, "front" means the direction towards the occupant, and "rear" is the opposite direction. The directions of front and rear, for example, can be the Y direction shown in the figure, while the lateral direction, for example, can be the X direction shown in the figure, and the longitudinal direction, for example, can be the Z direction shown in the figure.

[0081] Reference Figure 1 As shown, taking the air system 1000 of the vehicle as an example, the air system 1000 includes the cross-car beam 10 and the heating, ventilation and air conditioning system 20 (HAVC) and the air vent 30 which will be described in detail in the following embodiments. The cross-car beam 10 is fluidly connected to the heating, ventilation and air conditioning system 20 and the air vent 30 as the airflow passage 100. It can be understood that the cross-car beam 10 and the heating, ventilation and air conditioning system 20 of the vehicle are generally invisible to the occupant, and therefore Figure 1 The cross-car beam 31 and the heating, ventilation and air conditioning system 20 are not shown in the middle.

[0082] The air vent 30 can include the defrost air vent 31 and the occupant air conditioning air vent 32. The defrost air vent 31 includes the first defrost air vent 311 connected to the first end of the airflow passage 100 in the lateral direction, the second defrost air vent 312 connected to the second end of the airflow passage 100 in the lateral direction, as the defrost air vent of the side window, and the third defrost air vent 313 connected to the heating, ventilation and air conditioning system 20, as the defrost air vent of the front windshield. The occupant air conditioning air vent 32 can include the first occupant air conditioning air vent 321 connected to the first end of the airflow passage 100 in the lateral direction, the second occupant air conditioning air vent 322 connected to the second end of the airflow passage 100 in the lateral direction, as the air outlet of cold or hot air of the air conditioner on both sides, and the third occupant air conditioning air vent 323 connected to the middle region of the airflow passage 100.

[0083] It can be understood that the meaning of "defrosting" here is the common meaning in the art, and is not specifically for removing frost particles. The synonyms in the art can also include "defogging", "defrosting and defogging", etc., indicating the removal of surface blurring phenomenon on the surface of the glass piece due to water vapor, which belongs to the interpretation range of "defrosting" of the present application.

[0084] Reference Figures 2 to 7As shown, in some embodiments, the cross-car beam 10 includes a front portion 1 and a rear portion 2. The front portion 1 includes a first beam portion 11 extending in the transverse direction; the rear portion 2 includes a second beam portion 21 extending in the transverse direction; the front portion 1 and the rear portion 2 are separate parts and can be detachably connected, and the first beam portion 11 and the second beam portion 21 can be detachably connected to form an airflow passage 100 connected with the HVAC system 20 and the air outlet 30, respectively. In addition, the cross-car beam 10 is connected with the A-pillar of the vehicle on both sides in the transverse direction, and therefore the first beam portion 11 and the second beam portion 21 are generally provided with a connection site or a connection structure for connecting with the A-pillar of the vehicle.

[0085] Referring to FIG. 1, a baffle 103 is arranged in the airflow passage 100, and the baffle 103 divides the airflow passage 100, so that the airflow passage 100 includes at least a first flow passage 101 and a second flow passage 102 separated by the baffle 103. The first flow passage 101 corresponds to the defrost air outlet 31, and the second flow passage 102 corresponds to the passenger air conditioning air outlet 32. The baffle 103 can be integrally formed with the first beam portion 11 or the second beam portion 21, or can be integrally formed with the first beam portion 11 and the second beam portion 21, respectively, and the two are connected to form the baffle 103.

[0086] By detachably connecting the front portion and the rear portion to form the airflow passage 100 connected with the HVAC system 20 and the air outlet 30, respectively, and by arranging the baffle 103 in the airflow passage 100 to divide the airflow passage 100 into at least the first flow passage 101 and the second flow passage 102, the first flow passage 101 corresponds to the defrost air outlet 31, and the second flow passage 102 corresponds to the passenger air conditioning air outlet 32, the cross-car beam not only functions as a structural member, but also functions as an airflow passage, so that the vehicle does not need to be provided with a dedicated pipeline connecting the air conditioning system and the air outlet, and the structure of the air system is further compact, so as to meet the installation space requirement of the vehicle.

[0087] Continuing to refer to Figures 2 to 7 As shown, in some embodiments, the first flow passage 101 has a first airflow outlet 1011 at a first end in the transverse direction, a second airflow outlet 1012 at a second end in the transverse direction, and a first airflow inlet 1013 and a second airflow inlet 1014 isolated from each other at a middle region in the transverse direction. The first airflow inlet 1013 and the first airflow outlet 1011 form a first sub-flow passage 10101, and the second airflow inlet 1014 and the second airflow outlet 1012 form a second sub-flow passage 10102. The first sub-flow passage 10101 corresponds to the first defrost air outlet 311, and the second sub-flow passage 10102 corresponds to the second defrost air outlet 312.

[0088] The second flow channel 102 has a third air flow outlet 1021 at a first end in the transverse direction, a fourth air flow outlet 1022 at a second end in the transverse direction, and a third air flow inlet 1023 and a fourth air flow inlet 1024 in a middle region in the transverse direction, the third air flow inlet 1023 and the third air flow outlet 1021 form a third sub-flow channel 10201, the fourth air flow inlet 1024 and the fourth air flow outlet 1022 form a fourth sub-flow channel 10202, the third sub-flow channel 10201 corresponds to the first passenger air conditioner air outlet 321, and the fourth air flow inlet 1024 corresponds to the second passenger air conditioner air outlet 322. The above-mentioned gas flow path layout makes the gas flow path more smooth, and also meets the mechanical performance requirements of the cross-car beam.

[0089] With reference to the Figure 2 and Figure 3 illustrated, in some embodiments, the second flow channel 102 also has a fifth air flow inlet 1025 and a fifth air flow outlet 1026 in the middle region in the transverse direction, the fifth air flow inlet 1025 and the fifth air flow outlet 1026 form a fifth sub-flow channel 10203, and the fifth air flow outlet 1026 corresponds to the third passenger air conditioner air outlet 323. In this way, the structure of the gas passage is more compact.

[0090] With reference to the Figures 2 to 7 illustrated, in some embodiments, the front part 1 further includes a first longitudinal beam part 12 extending along the longitudinal direction from the first cross beam part 11, and the rear part 2 further includes a second longitudinal beam part 22 extending along the longitudinal direction from the second cross beam part 21, the first longitudinal beam part 12 and the second longitudinal beam part 22 are used to connect the floor of the vehicle to support the air flow passage 100 formed by the first cross beam part 11 and the second cross beam part 21. By arranging the first longitudinal beam part 12 and the second longitudinal beam part 22, the other end of the longitudinal beam part can be connected to the floor of the vehicle, further optimizing the stability of the cross-car beam.

[0091] With reference to the Figures 2 to 4 and Figure 6 , Figure 7As shown, in some embodiments, the specific structure of the longitudinal beam part can be that the first longitudinal beam part 12 includes a first longitudinal beam 121 and a second longitudinal beam 122, which are arranged in the middle region of the first flow channel 101 and the second flow channel 102 in the transverse direction and are connected by a first cross beam 123; the second longitudinal beam part 22 includes a third longitudinal beam 221 and a fourth longitudinal beam 222, which are arranged adjacent to the first air outlet 1011 and the third air outlet 1021 in the transverse direction; and the fourth longitudinal beam 222 is arranged adjacent to the second air outlet 1012 and the fourth air outlet 1022. In this way, the longitudinal beam part can provide support for the air outlets in the middle region and the end part, respectively, further optimizing the support stability of the cross beam.

[0092] Referring to Figure 2 , Figure 3 and Figure 6 , Figure 7 As shown, the specific structure of the detachable connection can be that the outer surfaces of the first cross beam part 11 and the second cross beam part 21 are provided with matching first connecting parts 111 and second connecting parts 211, which can be detachably connected by the connecting piece 3, so that the front part 1 and the rear part 2 can be detachably connected. The specific structure of the connecting part and the connecting piece can be a flange and a threaded connecting piece, but is not limited thereto.

[0093] Referring to Figures 5 to 7 As shown, in some embodiments, the rear part 2 includes a composite material part 201 and a metal part 202. The base body of the composite material part 201 is plastic, and the reinforcing body is fiber. The composite material part 201 provides the second cross beam part 21 and the second longitudinal beam part 22. The metal part 202 is embeddedly connected to the composite material part 201, for example, by using an insert injection molding process. The metal part 202 is first insert injection molded with the composite material part 201 to obtain the rear part 2. Then, the front part 1 is manufactured by an injection molding process. Finally, the two parts are spliced. In this way, the mechanical properties of the cross beam as an air flow channel can meet the requirements while taking into account the requirements of weight reduction and light weight.

[0094] In some embodiments, the specific materials can be that the base body of the composite material part 201 is PA66 plastic, and the reinforcing body is 30% glass fiber; the material of the metal part 202 is steel; and the metal part 202 is matched in shape with the second cross beam part 21. The inventors have found that the composite material with PA66 plastic and 30% glass fiber as the reinforcing body can better meet the requirements of light weight. Therefore, the metal part 202 can use 45 steel with lower cost, instead of using light weight metal materials such as aluminum alloy with higher cost, further reducing the manufacturing material cost of the cross beam.

[0095] In summary, the beneficial effects of the above embodiments include, but are not limited to, by detachably connecting the front part and the rear part, the air flow channel 100 connected with the heating ventilation and air conditioning system 20 and the air outlet 30 can be formed, and the partition plate 103 is arranged in the air flow channel, so that the air flow channel 100 at least includes the separated first flow channel 101 and the second flow channel 102, the first flow channel 101 corresponds to the defrosting air outlet 31, and the second flow channel 102 corresponds to the passenger air conditioning air outlet 32, so that the cross beam plays the function of the structural member and the function of the air flow channel at the same time, the special pipeline connecting the air conditioning system and the air outlet in the vehicle is reduced or even not needed, the structure of the air system is further compact, and the installation space requirement of the vehicle is met.

[0096] Although the present application is disclosed with the preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the technical solutions of the present application, fall within the protection scope defined by the claims of the present application.

Claims

1. A crossbeam (10) for a vehicle, characterized in that, include: The front part (1) includes a first crossbeam part (11) extending laterally; The rear part (2) includes a second crossbeam part (21) extending laterally; The front part (1) and the rear part (2) are separate parts and can be detachably connected. After the first crossbeam part (11) and the second crossbeam part (21) are detachably connected, they can form an airflow channel (100) that is connected to the heating, ventilation and air conditioning system (20) and the air outlet (30) respectively. A partition (103) is provided inside the airflow channel (100), the partition (103) divides the airflow channel (100) so that the airflow channel (100) includes at least a first flow channel (101) and a second flow channel (102) that are separated. The first flow channel (101) corresponds to the defrost air outlet (31), and the second flow channel (102) corresponds to the occupant air conditioning air outlet (32).

2. The crossbeam (10) as described in claim 1, characterized in that, The first flow channel (101) has a first airflow outlet (1011) at a first end in the lateral direction and a second airflow outlet (1012) at a second end in the lateral direction. In the middle region in the lateral direction, there are a first airflow inlet (1013) and a second airflow inlet (1014) that are isolated from each other. The first airflow inlet (1013) and the first airflow outlet (1011) form a first flow channel (10101), and the second airflow inlet (1014) and the second airflow outlet (1012) form a second flow channel (10102). The second flow channel (102) has a third airflow outlet (1021) at the first end in the lateral direction and a fourth airflow outlet (1022) at the second end in the lateral direction. In the middle region in the lateral direction, there are a third airflow inlet (1023) and a fourth airflow inlet (1024) that are isolated from each other. The third airflow inlet (1023) and the third airflow outlet (1021) form a third flow channel (10201), and the fourth airflow inlet (1024) and the fourth airflow outlet (1022) form a fourth flow channel (10202).

3. The crossbeam (10) as described in claim 2, characterized in that, The second flow channel (102) also has a fifth airflow inlet (1025) and a fifth airflow outlet (1026) in the middle region of the transverse direction, and the fifth airflow inlet (1025) and the fifth airflow outlet (1026) form a fifth branch channel (10203).

4. The crossbeam (10) as described in claim 2, characterized in that, The front part (1) further includes a first longitudinal beam (12) extending longitudinally from the first crossbeam (11), and the rear part (2) further includes a second longitudinal beam (22) extending longitudinally from the second crossbeam (21). The first longitudinal beam (12) and the second longitudinal beam (22) are used to connect the floor of the vehicle to support the airflow passage (100) formed by the first crossbeam (11) and the second crossbeam (21).

5. The crossbeam (10) as described in claim 4, characterized in that, The first longitudinal beam section (12) includes a first longitudinal beam (121) and a second longitudinal beam (122). The first longitudinal beam (121) and the second longitudinal beam (122) laterally surround the first flow channel (101) and the second flow channel (102) in the middle region of the lateral direction, and the first longitudinal beam (121) and the second longitudinal beam (122) are connected by a first crossbeam (123). The second longitudinal beam section (22) includes a third longitudinal beam (221) and a fourth longitudinal beam (222). Laterally, the third longitudinal beam (221) is disposed adjacent to the first airflow outlet (1011) and the third airflow outlet (1021); the fourth longitudinal beam (222) is disposed adjacent to the second airflow outlet (1012) and the fourth airflow outlet (1022).

6. The crossbeam (10) as described in claim 1, characterized in that, The outer surfaces of the first crossbeam (11) and the second crossbeam (21) are provided with matching first connecting parts (111) and second connecting parts (211). The first connecting parts (111) and the second connecting parts (211) can be detachably connected by a connector (3), so that the front part (1) and the rear part (2) can be detachably connected.

7. The crossbeam (10) as described in claim 1, characterized in that, The rear part (2) includes a composite material part (201) and a metal part (202). The matrix of the composite material part (201) is plastic and the reinforcement is fiber. The composite material part (201) provides a second crossbeam part (21) and a second longitudinal beam part (22). The metal part (202) is embeddedly connected to the composite material part (201).

8. The crossbeam (10) as described in claim 7, characterized in that, The matrix of the composite material part (201) is PA66 plastic, and the reinforcement is 30% glass fiber; the material of the metal part (202) is steel; the shape of the metal part (202) matches that of the second crossbeam part (21).

9. An air system (1000), characterized in that, Includes a crossbeam (10) as described in any one of claims 1-8, a heating, ventilation and air conditioning system (20), and an air outlet (30); the crossbeam (10) serves as an airflow channel (100) and fluidly connects the heating, ventilation and air conditioning system (20) and the air outlet (30) respectively.

10. The air system (1000) as claimed in claim 9, characterized in that, The defrost vent (31) includes a first defrost vent (311) connected to the first end of the airflow channel (100) in the horizontal direction, a second defrost vent (312) connected to the second end of the airflow channel (100) in the horizontal direction, serving as a defrost vent for the side window, and a third defrost vent (313) directly connected to the heating, ventilation and air conditioning system (20), serving as a defrost vent for the windshield.

Images