CN114852195A

CN114852195A - Cab roof and refrigerator car

Info

Publication number: CN114852195A
Application number: CN202210293487.1A
Authority: CN
Inventors: 栾天; 董波; 李海忠; 王泽�; 梁好宇; 郝勇; 高阳; 薛洪亮; 陈永刚
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-08-05

Abstract

The application relates to a cab roof and a refrigerator car. The cab roof cover comprises a roof cover skin, wherein the roof cover skin comprises a middle skin, a front skin, a rear skin and two side skins, the front skin, the rear skin and the two side skins surround the middle skin, the front skin and the rear skin are arranged opposite to each other along a first direction, and the two side skins are arranged opposite to each other along a second direction; the first direction and the second direction are perpendicular to each other, a plane parallel to the first direction and the second direction is a reference surface, the orthographic projection of the middle skin on the reference surface is a first projection, the orthographic projection of the rear skin on the reference surface is a second projection, and the second projection is located on the outer side of the first projection, so that an avoidance space for installing a refrigerating unit is formed on one side, away from the front skin, of the rear skin. Above-mentioned driver's cabin top cap and refrigerator car can the direct mount refrigerating unit, has avoided quality and the safety problem that the cutting system of reforming transform mode brought, has guaranteed quality and security performance.

Description

Cab roof and refrigerator car

Technical Field

The application relates to the technical field of refrigerated trucks, in particular to a cab roof and a refrigerated truck.

Background

In the related art, in order to install the refrigerator unit in the refrigerator car, a conventional cab roof is cut and modified to form a space for installing the refrigerator unit. In this process, the quality and safety of the cab roof obtained by cutting the modified cab roof are to be improved.

Disclosure of Invention

Accordingly, there is a need for a cab roof and a refrigerator car that improve the quality and safety of the cab roof.

According to a first aspect of the present application, embodiments of the present application provide a cab roof, comprising a roof skin, the roof skin comprising a middle skin and a front skin, a rear skin and two side skins surrounding the middle skin, the front skin and the rear skin being disposed opposite to each other in a first direction, the two side skins being disposed opposite to each other in a second direction;

wherein the first direction and the second direction are perpendicular to each other;

a plane parallel to the first direction and the second direction is a reference plane, the orthographic projection of the middle skin on the reference plane is a first projection, and the orthographic projection of the rear skin on the reference plane is a second projection;

the second projection is located on the outer side of the first projection, so that an avoidance space for installing a refrigerating unit is formed on one side, away from the front skin, of the rear skin.

In one embodiment, the cab roof further includes two baffle assemblies;

the two air deflector assemblies are respectively connected to two sides of the rear skin along the second direction.

In one embodiment, the baffle assembly includes a baffle and a connection assembly;

the deflector is secured to the rear skin by means of the connection assembly.

In one embodiment, the cab roof further comprises a roof frame disposed inside the roof skin, the roof frame supporting the roof skin;

the roof framework comprises a plurality of cross beams and a plurality of longitudinal beams;

the plurality of cross beams are arranged at intervals along the first direction, and the plurality of longitudinal beams are arranged at intervals along the second direction, so that the plurality of cross beams and the plurality of longitudinal beams form a staggered structure.

In one embodiment, the cab roof further comprises two reinforcement plates;

the two reinforcing plates are respectively positioned on two sides of the top cover framework in the second direction;

the reinforcing plate is used for connecting at least two adjacent cross beams with an inner plate of the cab side wall.

In one embodiment, the reinforcing plate comprises a first connecting part and a second connecting part bent and extended from one side of the first connecting part;

the first connecting portion is connected with the end portions of at least two adjacent cross beams, and the second connecting portion is used for connecting the inner plate of the cab side wall.

In one embodiment, the cross-members arranged inside the middle skin and the two side skins comprise a first type of cross-member;

the stringers are disposed inboard of the front skin, the rear skin, and the center skin.

In one embodiment, the cross beams arranged inside the rear skin and the two side skins comprise a second type of cross beam.

In one of the embodiments, the cross beams arranged at the inner side of the rear skin comprise cross beams of a third type.

According to a second aspect of the present application, embodiments of the present application further provide a cab roof, including a refrigeration unit and the cab roof;

the refrigerating unit is installed in the avoiding space.

Above-mentioned driver's cabin top cap and refrigerator car form the dodging space that is used for installing refrigerating unit in one side that the covering deviates from preceding covering behind, but the direct mount refrigerating unit, have avoided quality and the safety problem that the cutting system of reforming transform mode brought, have guaranteed the quality and the security performance of driver's cabin top cap and refrigerator car.

Drawings

FIG. 1 is a schematic view of a cab roof according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of a cab roof and refrigeration unit according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of the cab roof shown in FIG. 1 from another perspective;

fig. 4 is a schematic view illustrating an assembly of a cab roof and a cab side panel according to an embodiment of the present invention.

Description of reference numerals:

1. a cab roof;

11. a top cover skin; 111. a middle skin; 112. a front skin; 113. a rear skin; 114. a side skin;

12. a baffle assembly; 121. a baffle; 122. a first connecting member; 123. a second connecting member;

13. a roof framework; 131. a cross beam; 131a, a first type beam; 131b, a second type beam; 131c, third type beam; 132. a stringer; 133. a skylight beam;

14. a reinforcing plate; 141. a first connection portion; 142. a second connecting portion.

2. A refrigeration unit;

3. a cab side inner panel;

4. a cab side outer plate;

5. and (4) bolts.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

The refrigerator car is a closed type van-type transport car for maintaining the temperature of frozen or fresh-keeping goods, and is provided with a refrigerating unit. The refrigerating unit can be divided into an independent refrigerating unit and a non-independent refrigerating unit according to power sources, wherein the independent refrigerating unit is mostly of an integrated structure, and the integrated independent refrigerating unit (hereinafter referred to as the refrigerating unit) is arranged between a cab top cover and a compartment of the refrigerator car. In the related art, in order to install the refrigerator unit in the refrigerator car, a conventional cab roof is cut and modified to form a space for installing the refrigerator unit. However, the quality and safety of the cab roof obtained by cutting the modified cab roof are to be improved.

To solve the problems in the related art, the embodiment of the application provides a cab roof and a refrigerator car so as to improve the quality and the safety performance of the cab roof.

Fig. 1 shows a schematic structural diagram of a cab roof 1 in an embodiment of the present application, and fig. 2 shows a schematic structural diagram of the cab roof 1 and a refrigeration unit 2 in an embodiment of the present application.

In some embodiments, referring to fig. 1 and 2, embodiments of the present application provide a cab roof 1 including a roof skin 11. The roof skin 11 includes a middle skin 111, and a front skin 112, a rear skin 113, and two side skins 114 surrounding the middle skin 111, the front skin 112 and the rear skin 113 being disposed opposite to each other in a first direction, and the two side skins 114 being disposed opposite to each other in a second direction. Wherein the first direction and the second direction are perpendicular to each other. The plane parallel to the first direction and the second direction is a reference plane, the orthographic projection of the middle skin 111 on the reference plane is a first projection, and the orthographic projection of the rear skin 113 on the reference plane is a second projection. The second projection is located outside the first projection, so that the side of the rear skin 113 facing away from the front skin 112 forms an escape space a for installing the refrigeration unit 2.

Specifically, in the embodiment shown in fig. 1, the first direction is the x-direction, the second direction is the y-direction, and the reference plane is the xy-plane.

Specifically, the skin is a dimensional member that surrounds and is fixed to the support structure to form the outer shape of the cab roof, and belongs to an automobile panel, and is generally manufactured by press forming. The middle skin 111, the front skin 112, the rear skin 113 and the two side skins 114 are spot welded by lap flanging to form the roof skin 11. The skin parts can be formed by one-time stamping, and can also be formed by welding a plurality of stamping parts. For example, in some embodiments, the side skin 114 is complex in structure and difficult to stamp in one go. The side skin 114 is divided into a front side skin and a rear side skin, the front side skin and the rear side skin are respectively processed, and then the welding sub-assembly is formed through overlap flanging spot welding, so that the difficulty of process design and production is reduced.

One side of the rear skin 113 in the first direction is connected to the center skin 111, and the other side of the rear skin 113 in the first direction is used to connect to a cab rear (not shown). The cabin (not shown) is used for loading cargo and is disposed behind the cab, and generally, the distance between the rear wall of the cab and the front wall of the cabin is small. And the rear skin of traditional driver's cabin top cap encloses extending direction unanimously behind with the driver's cabin, and all perpendicular to above-mentioned reference surface, well covering is on a parallel with the reference surface, and the rear skin is the right angle setting with well covering to make the distance between driver's cabin top cap and the railway carriage also very little, unable direct mount refrigerating unit, need cut the space of transformation system in order to form and be used for installing refrigerating unit to the driver's cabin top cap.

Cab roof 1 in the embodiment of this application makes the improvement to roof skin 11's spatial structure, with the junction along first direction antedisplacement of back skin 113 and well skin 111, back skin 113 is the obtuse angle setting with well skin 111, thereby make back skin 113 deviate from one side formation of preceding skin 112 and be used for installing refrigerating unit 2 dodge space A, but direct mount refrigerating unit 2, the quality and the safety problem that the cutting repayment mode brought have been avoided, the quality and the security performance of cab roof have been guaranteed.

In some embodiments, with continued reference to fig. 1, cab roof 1 further includes two baffle assemblies 12, and two baffle assemblies 12 are respectively connected to two sides of rear skin 113 along the second direction. On the one hand, the air deflector assembly 12 plays a role in guiding air in the running process of the vehicle, so as to achieve the purpose of reducing the wind resistance. On the other hand, referring to fig. 2, the two baffle assemblies 12 act as a shield on both sides of the refrigeration unit 2 along the second direction, so as to reduce the entrance and adhesion of dust. The specific shape of the baffle assembly 12 needs to be set according to the flow guiding requirement, which is not specifically limited in the embodiment of the present application.

In some embodiments, the baffle assembly 12 includes a baffle 121 and a connection assembly by which the baffle 121 is secured to the rear skin 113. Optionally, the deflector 121 is made of SMC (sheet molding compound), and the connecting assembly and the rear skin 113 are made of metal materials, so that the deflector 121 can be adjusted and fixed on the rear skin 113 conveniently. Specifically to the illustrated embodiment, as shown in fig. 1, the connecting assembly includes a first connecting member 122 and a second connecting member 123, the first connecting member 122 is fixed to the baffle 121 by bolts, the second connecting member 123 is welded to the rear skin 113, and the first connecting member 122 is fixed to the second connecting member 123 by bolts, so that the mounting and dismounting are facilitated.

Fig. 3 shows a schematic structural view from another perspective of the cab roof 1 shown in fig. 1.

In some embodiments, referring to fig. 3, the cab roof 1 further includes a roof frame 13 disposed inside the roof skin 11, the roof frame 13 being configured to support the roof skin 11. The roof framework 13 includes a plurality of cross members 131 and a plurality of longitudinal members 132. The plurality of cross members 131 are arranged at intervals in the first direction, and the plurality of longitudinal members 132 are arranged at intervals in the second direction, so that the plurality of cross members 131 and the plurality of longitudinal members 132 form a staggered structure. Therefore, stress decomposition and transmission can be effectively carried out when collision occurs, and the safety of passengers in the cab is protected.

In some embodiments, the cross beams 131 and the longitudinal beams 132 are welded together, and the roof framework 13 and the roof skin 11 are welded together. Optionally, each cross beam 131 and each longitudinal beam 132 are of a segmented structure, and the segments are connected by welding, so that the production and installation difficulty can be reduced.

With continued reference to fig. 3, in some embodiments, the cross beams 131 arranged inside the middle skin 111 and the two side skins 114 include a first type cross beam 131a for increasing the connection strength between both sides of the middle skin 111 in the second direction and the two side skins 114. The stringers 132 are disposed inside the front skin 112, the rear skin 113, and the middle skin 111 for increasing the connection strength between both sides of the middle skin 111 in the first direction and the front skin 112 and the rear skin 113. Therefore, the middle skin 111 is effectively fixed in the first direction and the second direction, and the safety performance of the cab roof is guaranteed.

In some embodiments, referring to fig. 3, the number of the first type cross beams 131a and the number of the longitudinal beams 132 are two, and the first type cross beams 131a are of a segmented structure. The cab roof 1 is provided with a skylight, and the roof framework 13 further comprises a skylight beam 133. The skylight beam 133 is a square frame having a first beam extending lengthwise in a first direction and a second beam extending lengthwise in a second direction. The second beam body is also used as a middle section of the first type beam 131a and is connected with the left section and the right section of the first type beam 131 a. In other embodiments, the cab roof 1 does not have a sunroof, and the first type cross member 131a has a separate intermediate section.

It should be understood that the cab roof 1 in the embodiment of the present application improves the spatial structure of the roof skin 11 such that the side of the rear skin 113 facing away from the front skin 112 forms an escape space for installing the refrigeration unit 2. Compared with the conventional cab roof, the cab roof 1 in the embodiment of the present invention is more complicated in the stress condition in the event of a collision due to the change in the spatial structure. Accordingly, to accommodate the improved roof skin 11, the roof skeletal 13 is in some embodiments modified accordingly.

Optionally, the cross beams 131 arranged inside the rear skin 113 and the two side skins 114 include a second-type cross beam 131b for increasing the connection strength between both sides of the rear skin 113 in the second direction and the two side skins 114. The second type cross beams 131b cooperate with the longitudinal beams 132 to effectively reinforce the rear skin 113 in both the first direction and the second direction, thereby further ensuring the safety performance of the cab roof.

It should be appreciated that as the junction of rear skin 113 and center skin 111 advances in the first direction, the size of center skin 111 in the embodiment of the present application is relatively reduced, the size of rear skin 113 is relatively increased, and the support structure required for rear skin 113 is correspondingly increased.

Optionally, the cross beams 131 arranged at the inner side of the rear skin 113 comprise a third type cross beam 131c for increasing the structural strength of the rear skin 113. Through addding third type crossbeam 131c, effectively support back skin 113, avoid the deformation problem because of local support is not enough produces, further guaranteed the security performance of driver's cabin top cap.

Fig. 4 shows a schematic view of the assembly of the cab roof 1 with the cab side walls according to an embodiment of the present application.

In some embodiments, referring to fig. 3 and 4, the cab roof 1 further includes two reinforcement plates 14, and the two reinforcement plates 14 are respectively located on both sides of the roof frame 13 in the second direction. The reinforcing plates 14 are used to connect at least two adjacent cross members 131 to the cab-side inner panel 3. It should be noted that the cross beams 131 to which the stiffening plates 14 are connected should extend to the edges of the side skin 114, such as the aforementioned first type cross beams 131a and second type cross beams 131 b.

In the correlation technique, the driver's cabin side wall includes driver's cabin side wall inner panel 3 and driver's cabin side wall planking 4, side skin 114, driver's cabin side wall inner panel 3, driver's cabin side wall planking 4 welded connection, and lack effective connection between top cap skeleton 13 and the driver's cabin side wall, lead to the joint strength between driver's cabin top cap 1 and the driver's cabin side wall not enough to influence the holistic structural strength of driver's cabin. Through setting up reinforcing plate 14, effectively be connected crossbeam 131 and driver's cabin side wall inner panel 3, increased the joint strength between driver's cabin top cap 1 and the driver's cabin side wall, guaranteed the holistic structural strength of driver's cabin, can effectively carry out the atress when bumping and decompose and transmit, protect driver's in the driver's cabin safety. Meanwhile, the reinforcing plate 14 also connects at least two adjacent cross beams 131, which increases the structural strength of the roof framework 13.

Specifically, in the embodiment shown in fig. 3, the cross member 131 includes two first-type cross members 131a, one second-type cross member 131b, and one third-type cross member 131c, and the reinforcing plate 14 connects the end of the second-type cross member 131b and the end of the first-type cross member 131a adjacent thereto, and is integrally used for connecting with the cab-side inner panel 3. The connection mode can obtain ideal cab structural strength through simulation experiments, stress decomposition and transmission are effectively carried out when collision occurs, and safety of passengers in the cab is protected.

In some embodiments, with reference to fig. 4, the reinforcing plate 14 includes a first connecting portion 141 and a second connecting portion 142 extending from one side of the first connecting portion 141. The first connection portion 141 connects end portions of at least two adjacent cross members 131, and the second connection portion 142 connects the cab-side inner panel 3. In other embodiments, the reinforcing plate 14 may be configured in other structures, and may be configured to connect the cross member 131 and the cab-side inner panel 3.

Alternatively, the connection mode of the reinforcing plate 14, the cross member 131, and the cab-side inner panel 3 is not limited. In the embodiment shown in fig. 4, the first connecting portion 141 is welded to the cross beam 131, and the second connecting portion 142 is connected to the inner side wall panel 3 of the cab through the bolt 5, so as to facilitate installation and adjustment.

The embodiment of the application also provides a refrigerator car, which comprises a refrigerating unit 2 and the cab roof 1, wherein the refrigerating unit 2 is arranged in an avoiding space A on one side of the rear skin 113 departing from the front skin 112. Therefore, the quality and safety problems caused by the cutting and reforming mode are avoided, and the quality and safety performance of the refrigerator car are guaranteed.

To sum up, among the driver's cabin top cap 1 and the refrigerator car that this application embodiment provided, driver's cabin top cap 1 includes top cap covering 11 at least, improves through the spatial structure to top cap covering 11, makes one side that back covering 113 deviates from preceding covering 112 form the space of dodging that is used for installing refrigerating unit 2, but directly install refrigerating unit 2, has avoided quality and the safety problem that the cutting system of reforming mode brought, has guaranteed the quality and the security performance of driver's cabin top cap and refrigerator car.

The cab roof 1 may further include a spoiler assembly 12, a roof framework 13, and a reinforcement plate 14. The air deflector assembly 12 plays a role in guiding air in the driving process of the vehicle, so that the aim of reducing wind resistance is fulfilled. Meanwhile, the two guide plate assemblies 12 play a role in shielding the two sides of the refrigerating unit 2 along the second direction, so that the entering and the attachment of dust are reduced.

The roof skeleton 13 includes a plurality of cross members 131 and a plurality of longitudinal members 132 forming an interleaved structure for supporting the roof skin 11. The reinforcing plate 14 is used for connecting at least two adjacent cross beams 131 with the cab side wall inner plate 3, so that the connection strength between the cab top cover 1 and the cab side wall is increased, and the integral structural strength of the cab is ensured, so that stress decomposition and transmission are effectively carried out when collision occurs, and the safety of passengers in the cab is protected.

The cross beam 131 at least comprises a first type cross beam 131a, the first type cross beam is used for increasing the connection strength between two sides of the middle skin 111 along the second direction and the two side skins 114, the middle skin 111 is effectively fixed in the first direction and the second direction by matching with the longitudinal beam 132, and the safety performance of the cab roof is guaranteed.

The beams 131 may further include second-type beams 131b and third-type beams 131 c. The second type cross beams 131b are used for increasing the connection strength between the two sides of the rear skin 113 along the second direction and the two side skins 114, and the rear skin 113 is effectively reinforced in the first direction and the second direction by matching with the longitudinal beams 132, so that the safety performance of the cab roof is further ensured. The third type beam 131c is used for increasing the structural strength of the rear skin 113, effectively supporting the rear skin 113, avoiding the deformation problem caused by insufficient local support, and further ensuring the safety performance of the cab roof.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of this patent shall be subject to the appended claims.

Claims

1. A cab roof, comprising a roof skin comprising a middle skin and, surrounding the middle skin, a front skin, a rear skin and two side skins, the front and rear skins being disposed opposite one another in a first direction and the two side skins being disposed opposite one another in a second direction;

2. The cab cap of claim 1, further comprising two baffle assemblies;

and the two guide plate assemblies are respectively connected to two sides of the rear skin along the second direction.

3. The cab cap of claim 2, wherein the baffle assembly includes a baffle and a connection assembly;

the deflector is secured to the rear skin by means of the connection assembly.

4. The cab roof according to any one of claims 1 to 3, further comprising a roof skeleton provided inside the roof skin, the roof skeleton being configured to support the roof skin;

5. The cab roof of claim 4, further comprising two reinforcement plates;

6. The cab cap according to claim 5, wherein the reinforcement plate includes a first connecting portion and a second connecting portion extending by being bent from one side of the first connecting portion;

7. The cab roof according to claim 4, wherein the cross member disposed inside the middle skin and the two side skins includes a first type cross member;

8. The cab roof according to claim 7, wherein the cross member disposed inside the rear skin and the two side skins includes a second type cross member.

9. The cab roof according to claim 7, wherein the cross member disposed inside the rear skin includes a third type of cross member.

10. A refrigerated vehicle comprising a refrigeration unit and a cab roof as claimed in any one of claims 1 to 9;

the refrigerating unit is installed in the avoiding space.