Firewall assembly, vehicle body and vehicle

Abstract

The application relates to the technical field of vehicles, and particularly discloses a firewall assembly, a vehicle body and a vehicle, which comprises a firewall body and a firewall side connecting piece, the firewall body comprises a top plate and a baffle connected with each other, the top plate is provided with a groove, and the baffle is arranged on one side of the groove. The bottom of the firewall side connecting piece is provided with a limiting protrusion which can be connected with the groove. The bottom of the firewall side connecting piece is fixedly connected with the top plate, the baffle is arranged on the side of the firewall side connecting piece and is fixedly connected with the firewall side connecting piece. The firewall side connecting piece and the firewall body can be limited in multiple directions, the installation precision is high, accurate installation can be realized, the installation is convenient, and the efficiency is high. After installation, the connecting position of the limiting protrusion and the groove, the fixed connection position of the baffle and the firewall side connecting piece and the fixed connection position of the firewall side connecting piece and the top plate can all bear and disperse stress, and the installation stability is good.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a firewall assembly, a vehicle body, and a vehicle. Background Technology

[0002] The front engine compartment of range-extended vehicles is cramped due to the presence of components such as heat pumps and engines, which poses significant obstacles to the installation and coordinated arrangement of these components.

[0003] In related technologies, firewalls are components that isolate the heat flow field of the engine compartment and block engine compartment noise from entering the cab. Firewalls are installed in the engine compartment and need to be connected and fixed to the vehicle frame sheet metal in the engine compartment. Due to the redundant layout space in the engine compartment, firewalls have problems such as small installation space, insufficient layout space, and difficult installation process.

[0004] In particular, firewalls are mostly plate structures with connection holes. The firewalls extend from the left to right of the frame and are connected and fixed to the frame sheet metal using fasteners such as bolts or snap fasteners. However, due to the small installation space in the engine compartment and insufficient layout space, the firewall installation requires the cooperation of multiple people. The firewall is installed into the engine compartment from front to back in the front-to-back direction and placed near the frame sheet metal at the installation position. After aligning the multiple holes, the fasteners are installed for connection. Often, there are problems such as low installation accuracy, difficulty in aligning some mounting holes, and installation difficulties, resulting in low installation efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a firewall assembly, body, and vehicle to solve the problems of inconvenient installation and low installation accuracy of firewalls in the engine compartment in related technologies.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a firewall assembly, the firewall assembly comprising:

[0008] The firewall body includes a top plate and a baffle connected to each other. The top plate is provided with a groove, and the baffle is disposed on one side of the groove.

[0009] A firewall side connector, wherein a limiting protrusion is provided at the bottom of the firewall side connector, and the limiting protrusion can be connected to the groove;

[0010] The bottom of the firewall side connector is fixedly connected to the top plate, and the baffle is mounted on the side of the firewall side connector and fixedly connected to the firewall side connector.

[0011] In one embodiment, the firewall side connector includes:

[0012] A vertical plate, which is fixedly connected to the baffle.

[0013] A surrounding panel is disposed on the circumferential edge of the upright panel and is fixedly connected to the top panel.

[0014] In one embodiment, the wall of the top plate is integrally recessed to form the groove; and / or, the wall of the firewall side connector is integrally convex to form the limiting protrusion.

[0015] In one embodiment, the limiting protrusion has a first limiting wall surface and a second limiting wall surface disposed opposite to each other, both of which can abut against the groove wall of the groove.

[0016] In one embodiment, the limiting protrusion includes a protruding body and a support block connected to each other. The support block is disposed on one side of the protruding body or on both sides opposite to it. The support block can abut against the groove wall of the groove. The surface of the support block forms the first limiting wall surface and / or the second limiting wall surface.

[0017] In one embodiment, the support block is a long strip structure that extends vertically along the protrusion direction of the limiting protrusion, and the end of the long strip structure facing the baffle is provided with a guide surface.

[0018] In one embodiment, in the protrusion direction of the limiting protrusion, the distance between the first limiting wall surface and the second limiting wall surface gradually decreases from the groove opening to the groove bottom; and / or,

[0019] In the vertical direction of the protrusion direction of the limiting protrusion, the end of the groove away from the baffle is an open end, and the end of the groove near the baffle is a closed end. The distance between the first limiting wall surface and the second limiting wall surface gradually decreases from the open end to the closed end.

[0020] Secondly, the present invention provides a vehicle body including a frame and a firewall assembly as described in any of the above embodiments, wherein the firewall body is connected to the frame via a firewall side connector.

[0021] In one embodiment, the limiting protrusion protrudes along the vertical height direction of the vehicle frame, the baffle extends along the vertical height direction of the vehicle frame, and the baffle is located on one side of the firewall side connector located in the left-right width direction of the vehicle frame.

[0022] Thirdly, the present invention provides a vehicle comprising the aforementioned vehicle body.

[0023] The beneficial effects of this invention are as follows:

[0024] The present invention provides a firewall assembly, a vehicle body, and a vehicle. The firewall body of the firewall assembly is fixed to the vehicle frame via a firewall side connector. The user can connect the limiting protrusion of the firewall side connector to the groove in the top plate, and then move the firewall side connector as a whole until it abuts against the baffle. The limiting protrusion is located at the bottom of the firewall side connector, and the groove is located at the top of the firewall body. The connection between the limiting protrusion and the groove can reduce the sliding displacement of the firewall side connector and the firewall body in one direction of their contact surface, such as the installation direction of the firewall body when installed in the engine compartment or other mounting equipment. The abutment and fixed connection between the firewall side connector and the baffle can reduce the sliding displacement of the firewall side connector and the firewall body in the other direction of their contact surface, such as the extension direction of the firewall body. At this time, the firewall side connector and the firewall body can be locked and fixed by completing the fixed connection between the bottom of the firewall side connector and the top plate, which can reduce the separation of the firewall side connector and the firewall body, and has high installation accuracy, enabling accurate installation, convenient installation, and high efficiency. After installation, the connection positions of the limiting protrusion and groove, the fixed connection positions of the baffle and the firewall side connector, and the fixed connection positions of the firewall side connector and the top plate can all withstand and disperse stress, resulting in good installation stability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the firewall assembly in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the firewall side connector in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the firewall body in an embodiment of the present invention;

[0028] Figure 4 This is a front view of the firewall assembly in an embodiment of the present invention;

[0029] Figure 5 for Figure 4 A magnified view of view B in the middle;

[0030] Figure 6 for Figure 4 Sectional view at midsection AA;

[0031] Figure 7 This is a top view of the firewall assembly in an embodiment of the present invention;

[0032] Figure 8 This is a side view of the firewall assembly in an embodiment of the present invention.

[0033] In the picture:

[0034] 1. Firewall body; 11. Top plate; 111. Groove; 111a. Open end; 111b. Closed end; 12. Baffle;

[0035] 2. Firewall side connectors;

[0036] 21. Limiting protrusion; 210. Protrusion body; 211. First limiting wall surface; 212. Second limiting wall surface; 213. Transition wall surface; 214. Support block; 214a. Guide surface;

[0037] 22. Vertical panel; 221. Annular flange; 23. Enclosure panel;

[0038] 3. First fastener;

[0039] 4. Second fastener. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0044] First, it should be noted that the first direction, second direction, and third direction refer to the intersecting directions in three-dimensional space, representing three different directions. The first direction, second direction, and third direction can be perpendicular to each other, or adjacent directions can be non-perpendicular intersecting. The first direction can be the direction in which the limiting protrusion is set, the second direction can be the direction in which the firewall body is extended, and the third direction can be the installation direction in which the firewall body is installed in the chassis or other installation equipment. For ease of understanding, the following explanation is based on a three-dimensional coordinate system.

[0045] This invention provides a firewall assembly comprising a firewall body and a firewall side connector. The firewall body includes a top plate and a baffle plate connected together. A groove is provided on the top plate, and the baffle plate is disposed on one side of the groove. A limiting protrusion is provided at the bottom of the firewall side connector, and the limiting protrusion can connect with the groove. The bottom of the firewall side connector is fixedly connected to the top plate, and the baffle plate is positioned on the side of the firewall side connector and fixedly connected to it. This assembly offers high installation accuracy, enabling precise installation, and is convenient and efficient.

[0046] The baffle being located on one side of the groove means that the baffle can be fixedly connected to the top plate. The connection position between the baffle and the top plate is located on one side of the groove opening, so that after the limiting protrusion is connected to the groove, the side of the firewall side connector can be connected to the baffle.

[0047] The ability of the limiting protrusion to connect with the groove means that the limiting protrusion can extend into the groove for an interventional connection. The limiting protrusion and the groove can be an interference fit or a transition fit, which can reduce the sliding displacement of the firewall side connector and the firewall body in one direction of their contact surface. For example, the installation direction of the firewall body when it is installed in the engine room or other installation equipment, that is, the third direction.

[0048] The bottom of the firewall side connector is fixedly connected to the top plate. This means that the bottom of the firewall side connector can be fixed to the top plate by means of bolts, snaps, clips, adhesives, or magnetic attraction. This can lock and fix the firewall side connector to the top plate, reducing the risk of the firewall side connector separating from the top plate of the firewall body. The connection method of the bottom of the firewall side connector to the top plate can be a surface connection or an intermittent connection at one or more points.

[0049] The baffle being installed on the side of the firewall side connector and fixedly connected to the firewall side connector means that the baffle can be installed on the side of the firewall side connector to limit and restrict the firewall side connector. The baffle can be fixed to the firewall side connector by bolts, snaps, snaps, adhesives or magnetic attraction, which can reduce the sliding displacement of the firewall side connector and the firewall body in the other direction of their contact surface, such as the extension direction of the firewall body, i.e., the second direction.

[0050] With this configuration, the firewall side connector can be fixed to the sheet metal of the vehicle frame. The user can connect the limiting protrusion of the firewall side connector to the groove in the top plate, and then move the firewall side connector as a whole until it abuts against the baffle. The limiting protrusion is located at the bottom of the firewall side connector, and the groove is located at the top of the firewall body. The connection between the limiting protrusion and the groove reduces the sliding displacement of the firewall side connector and the firewall body in one direction of their contact surface. For example, in the installation direction of the firewall body when installed in a mounting device such as an engine compartment, i.e., in the third direction, the firewall side connector and the baffle... The abutment and fixed connection can reduce the sliding displacement of the firewall side connector and the firewall body in another direction of their contact surface, such as the extension direction of the firewall body, i.e., the second direction. In this case, the firewall side connector and the firewall body can be locked and fixed by completing the fixed connection between the bottom of the firewall side connector and the top plate, which can reduce the disengagement of the firewall side connector and the firewall body, and the installation accuracy is high. The firewall assembly of the present invention can be accurately installed in multiple directions, such as the first direction, the second direction and the third direction in three dimensions, which is convenient and efficient. After installation, the connection position of the limiting protrusion and the groove, the fixed connection position of the baffle and the firewall side connector, and the fixed connection position of the firewall side connector and the top plate can all bear and disperse stress, resulting in good installation stability. This solves the problems of inconvenient installation and low installation accuracy of firewalls in the cabin in related technologies.

[0051] It should be noted that compared to the firewall body, the firewall side connector is smaller and requires less installation space. The firewall side connector can be pre-installed on the vehicle frame's sheet metal, and then the firewall body is connected to the firewall side connector to complete the installation of the entire firewall assembly to the vehicle frame's sheet metal, making installation quick and convenient. The firewall assembly connection method can be applied to both the main firewall assembly and the secondary firewall assembly. The main firewall assembly is located between the side of the engine compartment and the cab, while the secondary firewall assembly is located between the top of the engine compartment and the cab.

[0052] See Figures 1 to 3As shown in the figure, the Z direction is a schematic diagram of the first direction, and the limiting protrusion 21 can be set along the first direction. The Y direction is a schematic diagram of the second direction, and the firewall body 1 extends along the second direction. The X direction is a schematic diagram of the third direction, and the firewall body 1 is installed in the cabin or other installation equipment along the third direction.

[0053] An embodiment of the first aspect of the present invention provides a firewall assembly, which includes a firewall body 1 and a firewall side connector 2. The firewall body 1 includes a top plate 11 and a baffle 12 connected to each other. The top plate 11 is provided with a groove 111, and the baffle 12 is disposed on one side of the groove 111. The firewall side connector 2 is disposed on the top plate 11 of the firewall, and the bottom of the firewall side connector 2 is provided with a limiting protrusion 21, which can connect with the groove 111. The bottom of the firewall side connector 2 is fixedly connected to the top plate 11, and the baffle 12 is positioned on the side of the firewall side connector 2 and fixedly connected to the firewall side connector 2. This reduces the displacement of the firewall side connector 2 and the firewall body 1 in multiple directions, resulting in high installation accuracy, accurate installation, convenient installation, and high efficiency.

[0054] In some other embodiments, a positioning structure may also be provided between the limiting protrusion 21 and the groove 111 to determine whether the limiting protrusion 21 and the groove 111 are installed in place. For example, the positioning structure may include a locking head and a locking slot. The locking head can engage with the locking slot. One of the locking head and the locking slot is provided on the firewall side connector 2, and the other is provided on the top plate 11. After the limiting protrusion 21 and the groove 111 are installed in place, the locking head can be engaged into the locking slot, which can reduce the installation error of the limiting protrusion 21 and the groove 111. Optionally, the locking head may be made of an elastic material, such as rubber or silicone, which allows the locking head to deform to a certain extent into the locking slot before extending and engaging, which can reduce positional interference between the limiting protrusion 21 and the groove 111 and the locking head when they are connected.

[0055] Optionally, the firewall body 1 may include an upper body and a lower body. The upper body and the lower body may be connected by a detachable method such as bolts, snap fasteners or clips. The top plate 11 is set on the upper body and may extend along the second direction to form a large-area plate structure to cover the internal components of the cabin.

[0056] See Figures 1 to 3 As shown, in some embodiments, the firewall side connector 2 includes a vertical plate 22 and a surrounding plate 23, with the vertical plate 22 fixedly connected to the baffle 12. The surrounding plate 23 is disposed on the circumferential edge of the vertical plate 22 and is fixedly connected to the top plate 11.

[0057] The purpose of setting the enclosure 23 on the circumferential edge of the upright plate 22 is to increase the connection area between the firewall side connector 2 and the top plate 11, and to provide sufficient space for the installation of the limiting protrusion 21.

[0058] With this design, the firewall side connector 2, enclosed by a shell-like structure formed by the upright plate 22 and the surrounding plate 23, achieves a lightweight design, reducing the weight of the firewall side connector 2 and facilitating installation and operation. Furthermore, there is ample space for connection and installation between the surrounding plate 23 and the top plate 11, and between the upright plate 22 and the baffle 12. The top plate 11 and the surrounding plate 23 are securely connected in the first direction, and the upright plate 22 and the baffle 12 are securely connected in the second direction. This connection, along with the limiting protrusion 21 and the groove 111, provides multi-directional positioning of the firewall side connector 2 and the top plate 11, improving installation stability.

[0059] Optionally, the enclosure 23 can be positioned on the side of the upright 22 away from the baffle 12 to reduce positional interference between the connection point of the upright 22 and the baffle 12 and the enclosure 23. The enclosure 23 can surround the entire circumferential edge of the upright 22 to increase the overall structural strength of the firewall side connector 2. The joint between the enclosure 23 and the upright 22 can be integrally formed to ensure the structural strength of the joint. One end of the enclosure 23 is fixedly connected to the upright 22, and the other end can be a free end, that is, the end of the enclosure 23 away from the upright 22 is an open opening, which facilitates the user's installation operations at the connection points between the enclosure 23 and the top plate 11 and between the upright 22 and the baffle 12.

[0060] In this embodiment, the firewall assembly further includes a first fastener 3 and a second fastener 4. The first fastener 3 extends along a first direction, and the second fastener 4 extends along a second direction. The purpose of the first fastener 3 extending along the first direction is to connect and secure the top plate 11 and the surrounding plate 23 in the first direction, reducing displacement or detachment of the top plate 11 and the surrounding plate 23 in the first direction. The purpose of the second fastener 4 extending along the second direction is to connect and secure the upright plate 22 and the baffle 12 in the second direction, reducing displacement or detachment of the upright plate 22 and the baffle 12 in the second direction. The first fastener 3 and the second fastener 4 can be, but are not limited to, bolts, snap-fit ​​joints, or pins, as long as they can securely fix the connection position.

[0061] See Figures 7 to 8As shown, an annular flange 221 is provided on the surface of the upright plate 22 facing the baffle 12. The annular flange 221 can surround the circumference of the second fastener 4. The annular flange 221 can separate the upright plate 22 from the surface of the baffle 12 at the connection position of the second fastener 4. After the second fastener 4 fastens the upright plate 22 and the baffle 12, the end of the annular flange 221 abuts against the surface of the baffle 12, which can reduce the contact area between the surface of the upright plate 22 and the surface of the baffle 12, and reduce the impact of the machining error of the surface of the upright plate 22 and the surface of the baffle 12 on the connection accuracy of the second fastener 4.

[0062] See Figures 1 to 3 As shown, in some embodiments, the wall of the top plate 11 is recessed to form a groove 111. That is, the groove 111 not only does not reduce the wall thickness of the top plate 11, but the top plate 11 can form a reinforcing rib structure by being recessed in the thickness direction, thereby strengthening the structural strength at the location of the groove 111 and improving the connection stability.

[0063] Optionally, the wall surface of the firewall side connector 2 protrudes outward to form a limiting protrusion 21. The wall surface of the firewall side connector 2 protrudes outward, making it easier to integrally process the limiting protrusion 21 with the upright plate 22 and the surrounding plate 23. This facilitates processing. Moreover, the limiting protrusion 21 is hollow inside, which can form a lightweight design, further reducing the overall weight of the firewall side connector 2 and making it easier to install. Furthermore, under the same weight, the limiting protrusion 21 can be designed to have a larger volume, increasing the connection area between the limiting protrusion 21 and the groove 111.

[0064] It should be noted that the top plate 11 can adopt a uniform wall thickness concave design or a non-uniform wall thickness concave design, as long as the overall wall of the top plate 11 is concave and the influence of the groove 111 on the wall thickness of the top plate 11 is reduced. The firewall side connector 2 can adopt a uniform wall thickness convex design or a non-uniform wall thickness convex design, as long as the limiting protrusion 21 is easier to process and a lightweight design can be achieved. The uniform wall thickness design means that the groove 111 can be formed by bending based on the top plate 11 itself, and the limiting protrusion 21 can be formed by bending based on the firewall side connector 2 itself. The wall thickness at the location of the groove 111 and the wall thickness of the top plate 11 itself, and the wall thickness at the location of the limiting protrusion 21 and the wall thickness of the firewall side connector 2 itself, can be equal within the error range.

[0065] Optionally, in the vertical direction of the second direction, the cross-sectional profile of the groove 111 is the same as the cross-sectional profile of the limiting protrusion 21, so that the limiting protrusion 21 can fit more closely with the groove 111 after it extends into the groove 111.

[0066] See Figures 4 to 6As shown, in some embodiments, the limiting protrusion 21 has a first limiting wall surface 211 and a second limiting wall surface 212. The first limiting wall surface 211 and the second limiting wall surface 212 are arranged opposite each other in the third direction. With this arrangement, the limiting protrusion 21 can abut against the groove wall of the groove 111 in the third direction through the first limiting wall surface 211 and the second limiting wall surface 212, thereby limiting the firewall side connector 2 and the top plate 11 in the third direction and reducing the displacement or disengagement of the firewall side connector 2 and the top plate 11 in the third direction.

[0067] Optionally, the first limiting wall surface 211 and the second limiting wall surface 212 can be a plane or a curved surface with a wavy or arc-shaped profile, as long as they can limit the firewall side connector 2 and the top plate 11.

[0068] In some other embodiments, the limiting protrusion 21 has a transition wall 213 connecting the first limiting wall 211 and the second limiting wall 212. The transition wall 213 can be a plane or a polygonal bent surface. For example, the transition wall 213 may include a plane and a bent surface, with the plane engaging with the bent surface. The plane may also engage with the second limiting wall 212. The bent surface may engage with the first limiting wall 211 to form a guide slope, facilitating the insertion of the limiting protrusion 21 into the groove 111 in a first direction. It may also form a foolproof structure, requiring the limiting protrusion 21 to be oriented into the groove 111, thus reducing the possibility of misinsertion between the limiting protrusion 21 and the groove 111.

[0069] See Figures 4 to 6 As shown, in some embodiments, the limiting protrusion 21 includes a protrusion body 210 and a support block 214 connected together. The support block 214 is disposed on one side of the protrusion body 210 or on both sides opposite to it. The support block 214 can abut against the groove wall of the groove 111. The surface of the support block 214 forms a first limiting wall surface 211 and / or a second limiting wall surface 212. That is, the limiting protrusion 21 can abut against the groove wall of the groove 111 through the support block 214, which can reduce the connection area between the first limiting wall surface 211 and the groove wall of the groove 111 and / or between the second limiting wall surface 212 and the groove wall of the groove 111. This avoids the situation where the limiting protrusion 21 cannot be inserted into the groove 111 and installed in place due to unevenness between the surface of the protrusion body 210 and the groove wall of the groove 111, resulting in a large connection error.

[0070] Optionally, multiple support blocks 214 can be provided on both the first limiting wall surface 211 and the second limiting wall surface 212, so as to provide multi-point segmented support and limiting between the surface of the first limiting wall surface 211 and the surface of the limiting protrusion 21, and between the surface of the second limiting wall surface 212 and the surface of the limiting protrusion 21, thereby improving the connection and fit accuracy between the limiting protrusion 21 and the groove 111.

[0071] See Figures 4 to 6 As shown, in some embodiments, the support block 214 is a long strip structure. The long strip structure extends vertically along the protrusion direction of the limiting protrusion 21, that is, it extends along the second direction. This allows the support block 214 to provide long-distance support and limitation in the second direction, preventing the firewall side connector 2 from swaying or shifting relative to the top plate 11 in the second direction, and ensuring the connection stability between the firewall side connector 2 and the top plate 11. The end of the long strip structure facing the vertical plate 22 is provided with a guide surface 214a. The guide surface 214a not only facilitates the smooth insertion of the limiting protrusion 21 into the groove 111 in the second direction, but also guides the support block 214 as it moves closer to the baffle 12 in the second direction. This makes the movement of the support block 214 with the first limiting wall 211 and the second limiting wall 212 smoother, reducing positional interference between the support block 214 and the groove wall of the groove 111.

[0072] Optionally, the cross-section of the support block 214 may be, but is not limited to, square, semi-circular or trapezoidal, as long as it can support the surface of the limiting protrusion 21 and the groove wall of the groove 111.

[0073] Optionally, the transition wall 213 and the groove wall of the groove 111 can be clearance-fitted to reduce the connection error between the surface of the transition wall 213 and the groove wall of the groove 111, which could cause the limiting protrusion 21 to fail to connect properly with the limiting groove 111. The support block 214 can also be disposed between the transition wall 213 and the groove wall of the groove 111, which can improve the fitting accuracy between the transition wall 213 and the groove 111, and also prevent the limiting protrusion 21 from shaking in the groove 111, thereby improving the connection stability between the firewall side connector 2 and the top plate 11.

[0074] See Figures 4 to 6 As shown, in some embodiments, in the protrusion direction of the limiting protrusion 21, that is, in the first direction, the distance between the first limiting wall surface 211 and the second limiting wall surface 212 gradually decreases from the groove opening to the bottom of the groove 111. With this arrangement, the first limiting wall surface 211 and the second limiting wall surface 212 can make the limiting protrusion 21 form a wedge-shaped design, so that the limiting protrusion 21 can smoothly extend into the groove 111 in the first direction, making the installation operation convenient.

[0075] Optionally, in the vertical direction of the protrusion direction of the limiting protrusion 21, that is, in the second direction, the end of the groove 111 away from the baffle 12 is the open end 111a, and the end of the groove 111 near the baffle 12 is the closed end 111b. The distance between the first limiting wall surface 211 and the second limiting wall surface 212 gradually decreases from the open end 111a to the closed end 111b. With this setting, the limiting protrusion 21 can also be designed as a wedge-shaped structure with a gradually changing size in the second direction, so that the limiting protrusion 21 can slide smoothly in the groove 111 in the second direction, so that the upright plate 22 of the firewall side connector 2 can be smoothly installed near the baffle 12 and connected to the baffle 12, making the installation and operation convenient.

[0076] See Figures 4 to 6 As shown, an embodiment of the second aspect of the present invention provides a vehicle body, which includes a frame and a firewall assembly as described in any of the above embodiments. The firewall body 1 is connected to the frame via a firewall side connector 2. The firewall side connector 2 can be pre-installed on the sheet metal of the frame, and then the firewall body 1 is connected to the firewall side connector 2 to complete the installation of the firewall assembly to the frame. The installation is quick and convenient. The connection between the limiting protrusion 21 and the groove 111 can reduce the sliding displacement of the firewall side connector 2 and the firewall body 1 in one direction of their contact surface, for example, the front-to-back mounting direction of the firewall body 1 in the engine compartment of the frame, i.e., the third direction. The firewall side connector 2 abuts and is fixedly connected to the baffle 12, which can reduce the sliding displacement of the firewall side connector 2 and the firewall body 1 in the other direction of their contact surface. For example, in the extension direction of the firewall body 1, that is, the second direction, the bottom of the firewall side connector 2 can be fixedly connected to the top plate 11 to lock and fix the firewall side connector 2 and the firewall body 1. This can reduce the separation of the firewall side connector 2 and the firewall body 1, thereby completing the installation and positioning of the firewall assembly and the frame in multiple directions. The installation accuracy is high, accurate installation can be performed, and the installation is convenient and efficient.

[0077] In some embodiments, the first direction can be the vertical height direction of the frame, the second direction can be the horizontal width direction of the frame, and the third direction can be the longitudinal length direction of the frame. The limiting protrusion 21 protrudes along the vertical height direction of the frame, and the baffle 12 extends along the vertical height direction of the frame. The baffle 12 is located on one side of the firewall side connector 2 in the horizontal width direction of the frame. The limiting protrusion 21 of the firewall side connector 2 is connected to the groove 111 of the top plate 11, so that the firewall body 1 and the frame can be positioned in the longitudinal length direction of the frame. The baffle 12 is blocked on the side of the firewall side connector 2 and fixedly connected to the firewall side connector 2, so that the firewall body 1 and the frame can be positioned in the horizontal width direction of the frame. The bottom of the firewall side connector 2 is fixedly connected to the top plate 11, so that the firewall body 1 and the frame can be positioned in the vertical height direction of the frame. Thus, the firewall assembly and the frame are installed and positioned in multiple directions with high installation accuracy.

[0078] It should be noted here that... Figures 1 to 4 as well as Figures 7 to 8 The diagram shows the connection position between the firewall side connector 2 and the firewall body 1. The firewall side connector 2 and the firewall body 1 have cross-sections at the second fastener 4. The extensions of the firewall side connector 2 and the firewall body 1 are omitted from the diagram. Figures 6 to 8 In the diagram, the top plate 11 has a cross-section at the end away from the groove 111, and the partial extension of the top plate 11 in the second direction is omitted.

[0079] In summary, during the installation of the firewall body 1, the firewall side connector 2 is positioned vertically on the vehicle frame and connected to it. The top plate 11 of the firewall body 1 is positioned horizontally on the vehicle frame. The top plate 11 can be pushed forward along the longitudinal length of the vehicle frame, causing the limiting protrusion 21 of the firewall side connector 2 to engage with the groove 111 of the top plate 11. The firewall body 1 is then pushed forward horizontally on the vehicle frame, causing the upright plate 22 of the firewall side connector 2 to abut and connect with the baffle 12. The connection between the limiting protrusion 21 and the groove 111 enables the firewall side connector to be properly secured. The firewall assemblies 2 and 1 are limited in the longitudinal length direction of the frame. The firewall side connector 2 and the baffle 12 are abutted and fixedly connected, which can limit the firewall side connector 2 and the firewall body 1 in the lateral width direction of the frame. By fixing the bottom of the firewall side connector 2 to the top plate 11, the firewall side connector 2 and the firewall body 1 can be limited in multiple directions in the vertical height direction, longitudinal length direction and lateral width direction of the frame, thereby completing the installation and positioning of the firewall assembly and the frame in multiple directions, which is quick and convenient.

[0080] In some embodiments, a seal may be provided between the firewall side connector 2 and the vehicle frame. After the firewall side connector 2 is connected to the vehicle frame, the seal is sandwiched between the surface of the firewall side connector 2 and the vehicle frame, which can ensure the sealing performance between the surface of the firewall side connector 2 and the vehicle frame, and at the same time reduce the connection and fit stress between the firewall side connector 2 and the vehicle frame, thereby improving the installation stability.

[0081] The seal can be a sheet or plate structure, and the material of the seal can be, but is not limited to, rubber sheet or foam.

[0082] Since the vehicle body of this embodiment includes the firewall assembly described above, it possesses all the advantages and beneficial effects of any of the above embodiments, which will not be repeated here.

[0083] A third aspect of the present invention provides a vehicle that includes the body described in the above embodiments.

[0084] Since the vehicle body described above is included, the vehicle of this embodiment of the invention has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A firewall assembly, characterized in that, The firewall assembly includes: The firewall body (1) includes a top plate (11) and a baffle (12) connected to each other. The top plate (11) is provided with a groove (111), and the baffle (12) is provided on one side of the groove (111). Firewall side connector (2), the bottom of the firewall side connector (2) is provided with a limiting protrusion (21), the limiting protrusion (21) can be connected to the groove (111); The bottom of the firewall side connector (2) is fixedly connected to the top plate (11), and the baffle (12) is mounted on the side of the firewall side connector (2) and fixedly connected to the firewall side connector (2).

2. The firewall assembly according to claim 1, characterized in that, The firewall side connector (2) includes: A vertical plate (22) is fixedly connected to the baffle (12); A surrounding panel (23) is disposed on the circumferential edge of the upright plate (22) and is fixedly connected to the top plate (11).

3. The firewall assembly according to claim 1, characterized in that, The wall of the top plate (11) is recessed to form the groove (111); and / or the wall of the firewall side connector (2) is convex to form the limiting protrusion (21).

4. The firewall assembly according to claim 1, characterized in that, The limiting protrusion (21) has a first limiting wall surface (211) and a second limiting wall surface (212) arranged opposite to each other, and both the first limiting wall surface (211) and the second limiting wall surface (212) can abut against the groove wall of the groove (111).

5. The firewall assembly according to claim 4, characterized in that, The limiting protrusion (21) includes a protrusion body (210) and a support block (214) connected to each other. The support block (214) is disposed on one side of the protrusion body (210) or on both sides opposite to it. The support block (214) can abut against the groove wall of the groove (111). The surface of the support block (214) forms the first limiting wall surface (211) and / or the second limiting wall surface (212).

6. The firewall assembly according to claim 5, characterized in that, The support block (214) is a long strip structure. The long strip structure extends vertically along the protrusion direction of the limiting protrusion (21). The end of the long strip structure facing the baffle (12) is provided with a guide surface (214a).

7. The firewall assembly according to any one of claims 4-6, characterized in that, In the protrusion direction of the limiting protrusion (21), the distance between the first limiting wall surface (211) and the second limiting wall surface (212) gradually decreases from the opening to the bottom of the groove (111); and / or, In the vertical direction of the protrusion direction of the limiting protrusion (21), the end of the groove (111) away from the baffle (12) is an open end (111a), and the end of the groove (111) near the baffle (12) is a closed end (111b). The distance between the first limiting wall surface (211) and the second limiting wall surface (212) gradually decreases from the open end (111a) to the closed end (111b).

8. A vehicle body, characterized in that, The vehicle includes a frame and a firewall assembly according to any one of claims 1-7, wherein the firewall body (1) is connected to the frame via the firewall side connector (2).

9. The vehicle body according to claim 8, characterized in that, The limiting protrusion (21) is provided to protrude along the vertical height direction of the vehicle frame, and the baffle (12) extends along the vertical height direction of the vehicle frame. The baffle (12) is provided on one side of the firewall side connector (2) located in the left and right width direction of the vehicle frame.

10. A vehicle, characterized in that, Includes the vehicle body as described in claim 9.

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