Blocking structure, vehicle body and vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to a blocking structure, a vehicle body and a vehicle. The blocking structure comprises a filling piece and a mounting assembly, the mounting assembly is used for being arranged in a cavity of an object to separate the cavity, and the mounting assembly is provided with a containing space for containing the filling piece. According to the blocking structure, the mounting assembly is arranged to separate the cavity, the containing space is formed in the mounting assembly, the forming space of the filling piece is defined by the containing space, it is guaranteed that the filling piece is evenly distributed, and the situation that the blocking effect of the blocking structure is reduced due to uneven distribution of the filling piece and the cavity problem can be avoided. Due to the fact that the vehicle body is provided with the blocking structure, water is not prone to entering the cavity of the stand column, noise can be blocked, good sealing performance is achieved, and therefore the NVH performance of the vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more particularly to a blocking structure, vehicle body, and vehicle. Background Technology

[0002] Vehicle body pillars are typically constructed as hollow columns to balance lightweight and rigidity requirements. However, the internal cavities of these pillars reduce the vehicle's sealing performance and consequently lower its NVH (noise, vibration, and harshness) performance. Related technologies employ blocking structures, such as partitions, at these cavities; however, the blocking capacity of partitions is limited, offering only mediocre sound insulation and waterproofing. To improve blocking capabilities, some technologies use expanding foam, or a combination of partitions and expanding foam. However, controlling the foaming process of the expanding foam can lead to voids and uneven distribution, resulting in limited improvement in vehicle performance. Utility Model Content

[0003] This application provides a blocking structure, a vehicle body, and a vehicle to improve the blocking effect on the pillar cavity, enhance the sealing performance of the vehicle body, and improve the NVH performance of the vehicle, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a blocking structure is provided, comprising:

[0005] Filler;

[0006] Mounting components are provided for placement within a cavity of an object to separate the cavity, the mounting components having receiving spaces to accommodate the filler.

[0007] Optionally, the mounting assembly includes a first partition and a second partition, the first partition having a first surface and the second partition having a second surface, the first surface and the second surface being opposite to and spaced apart to form the receiving space.

[0008] Optionally, the first surface and / or the second surface are provided with receiving grooves, and the filler is embedded and fixed in the receiving grooves.

[0009] Optionally, the receiving groove is provided on the circumferential edge of the first surface and / or the second surface.

[0010] Optionally, at least one of the first partition and the second partition is provided with at least one snap-fit ​​member, the snap-fit ​​member being used to abut against the inner wall of the cavity and to form a gap between the outer peripheral surface of the mounting assembly and the inner wall of the cavity.

[0011] Optionally, at least one of the first partition and the second partition is provided with a fixing member, which is used to fix it to the inner wall of the cavity.

[0012] Optionally, the blocking structure has a first state and a second state:

[0013] In the first state, the filler is located within the receiving space;

[0014] In the second state, the filler extends out of the receiving space to seal the gap between the mounting assembly and the inner wall of the cavity.

[0015] Optionally, the filler expands under the action of external factors to extend out of the receiving space, causing the blocking structure to switch from the first state to the second state.

[0016] Optionally, the blocking structure further includes:

[0017] A seal is disposed on the mounting assembly for sealing the gap between the mounting assembly and the inner wall of the cavity.

[0018] Optionally, the blocking structure has a first state and a second state:

[0019] In the first state, the seal covers at least a portion of the surface of the mounting assembly;

[0020] In the second state, the seal covers at least a portion of the surface of the mounting assembly and the surface of the portion of the filler that extends out of the receiving space.

[0021] Optionally, the seal covers the portion of the filler that extends out of the receiving space under the action of an external factor, so that the blocking structure switches from the first state to the second state.

[0022] Optionally, the mounting assembly includes an outer peripheral surface and two separating surfaces, the gap being formed between the outer peripheral surface and the inner wall of the cavity, the two separating surfaces being disposed on both sides of the outer peripheral surface to separate the cavity, and at least one of the two separating surfaces being provided with the sealing element.

[0023] Optionally, the separating surface includes a central region and an edge region, the edge region surrounding the central region, and the seal covering at least a portion of the edge region.

[0024] Optionally, the central region protrudes relative to the edge region.

[0025] Optionally, one of the edge region and the seal has a protrusion and the other has a groove, the groove engaging with the protrusion.

[0026] Optionally, the filler is located within the receiving space in the first state, and the filler extends out of the receiving space in the second state to seal the gap between the mounting assembly and the inner wall of the cavity. The filler and the seal change under the action of external factors to switch the blocking structure from the first state to the second state.

[0027] The external factors include temperature. When the blocking structure is heated to a first temperature, the filler expands to extend out of the receiving space. When the blocking structure is heated to a second temperature, the seal melts and flows to cover the portion of the filler extending out of the receiving space. The first temperature is lower than the second temperature.

[0028] According to a second aspect of this application, a vehicle body is provided, comprising:

[0029] The column has an internal cavity;

[0030] The blocking structure described in any one of the first aspects is disposed within the cavity.

[0031] According to a third aspect of this application, a vehicle is also provided, comprising the body described in the second aspect.

[0032] In the blocking structure of this application embodiment, a cavity is set by the mounting component, and a receiving space is formed in the mounting component. The receiving space defines the molding space of the filler, ensuring that the filler is evenly distributed. This avoids the problem of uneven filler distribution and voids causing a reduction in the blocking effect of the blocking structure.

[0033] Because the vehicle body of this embodiment has the above-mentioned blocking structure, its column cavity is not easy to be flooded and can effectively block noise, thus having good sealing performance, thereby effectively improving the NVH performance of the vehicle.

[0034] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0037] Figure 1This is a schematic diagram of the overall structure of a vehicle provided in one embodiment of this application;

[0038] Figure 2 This is an internal sectional view of a vehicle body pillar provided in one embodiment of this application;

[0039] Figure 3 This is a schematic diagram of the blocking structure provided in one embodiment of this application;

[0040] Figure 4 This is a schematic diagram of the structure of the first separator and the filler provided in one embodiment of this application;

[0041] Figure 5 This is a schematic diagram of the structure of the second separator and the seal provided in one embodiment of this application;

[0042] Figure 6 This is a schematic diagram of the structure of the sealing element provided in one embodiment of this application in the second state;

[0043] Figure 7 This is a schematic diagram of the structure of the second separator provided in one embodiment of this application.

[0044] Explanation of reference numerals in the attached figures:

[0045] 1000 - Body, 1001 - Pillar, 1002 - Cavity

[0046] 1003-blocking structure,

[0047] 1-Filling material,

[0048] 2-Install components,

[0049] 21-First separator, 211-First surface,

[0050] 22-Second separator, 221-Second surface,

[0051] 23-Mounting post; 24-Receiving groove; 25-Snap-fit ​​component; 26-Fixing component.

[0052] 27-Separating surface, 271-Central region, 272-Edge region, 273-Protrusion,

[0053] 3-Accommodation space,

[0054] 4-Seals. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0056] like Figure 1 As shown, in one aspect, this application provides a vehicle, which includes a vehicle body 1000. The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this disclosure does not specifically limit it.

[0057] On the other hand, this application embodiment provides a vehicle body 1000, which includes pillars 1001. Pillars 1001 refer to column-shaped members in the structure of the vehicle body 1000 used to support the roof and sides of the vehicle body 1000, enhancing the rigidity and stability of the vehicle body 1000 and providing safety protection for occupants. Pillars 1001 include front pillars, middle pillars, and rear pillars. Front pillars generally include A-pillars, middle pillars generally include B-pillars, and rear pillars generally include C-pillars. Some vehicles also include D-pillars in their rear pillars; this embodiment does not specifically limit this.

[0058] To balance lightweight requirements with the rigidity requirements of the vehicle body 1000, the pillar 1001 is generally constructed as a hollow column structure. By setting a cavity 1002 inside the pillar 1001, the torsional resistance of the pillar 1001 can be improved without increasing material usage. The cavity 1002 can also be used for wiring and as an energy-absorbing space to release collision energy. However, the cavity 1002 of the pillar 1001 reduces the sealing performance of the vehicle body 1000, resulting in reduced interior noise, dust, and waterproofing. In related technologies, a partition plate is used to block the flow of air within the cavity 1002, but gaps can easily exist between the partition plate and the inner wall of the cavity 1002, and the partition plate itself does not have noise reduction capabilities; therefore, the waterproofing and sound insulation capabilities are generally limited. In some technologies, expanding foam is placed at the bottom of cavity 1002, or expanding foam is placed on the partition plate after the partition plate is placed in cavity 1002. In these solutions, the foaming state of the expanding foam is difficult to control, which can easily lead to voids and uneven distribution of the expanding foam, resulting in inconsistent barrier performance.

[0059] like Figure 2As shown, in another aspect, based on the above-mentioned problems, this application provides a blocking structure 1003, which is installed in the cavity 1002 of the pillar 1001 of the vehicle body 1000 to improve the sealing performance of the cavity 1002, thereby improving the sealing performance of the vehicle body 1000 and improving the NVH performance of the vehicle. NVH performance is an abbreviation for Noise, Vibration, and Harshness, and includes the comprehensive performance of noise, vibration, and acoustic roughness. It is an important indicator for measuring the manufacturing quality and driving comfort of automobiles.

[0060] like Figure 3 As shown, the blocking structure 1003 includes a filler 1 and an installation component 2.

[0061] Mounting assembly 2 is used to connect the vehicle body 1000 to separate the cavity 1002 of the pillar 1001. At the same time, mounting assembly 2 is provided with a receiving space 3 for receiving the filler 1.

[0062] Understandably, the separation mentioned in the embodiments of this application refers to dividing the cavity 1002 into two parts from the middle of the cavity 1002, or separating the cavity 1002 from the external environment at the opening near the cavity 1002.

[0063] The filler 1 includes a lightweight, porous filler material, such as sponge, foam plastic, or foamed material. The filler 1 is filled in the receiving space 3 of the mounting component 2, which can absorb noise and dust, at least reduce the noise and dust in the cavity 1002, and within the limitation of the receiving space 3, the filler 1 can be distributed more evenly, thereby improving the blocking ability of the blocking structure 1003.

[0064] In the technical solution provided in this application embodiment, by setting the installation component 2 to separate the cavity 1002 of the column 1001, and forming a receiving space 3 in the installation component 2, the receiving space 3 defines the forming space of the filler 1, ensuring that the filler 1 is evenly distributed, and avoiding problems such as uneven distribution of the filler 1 and voids that reduce the blocking effect of the blocking structure 1003.

[0065] The installation component 2 provided in this application embodiment can be a one-piece structure with a receiving space 3, or it can be a separate structure. In some embodiments, such as Figure 3 , Figure 4 and Figure 5As shown, the mounting assembly 2 includes a first partition 21 and a second partition 22. The first partition 21 has a first surface 211, and the second partition 22 has a second surface 221. The first surface 211 and the second surface 221 are opposite to each other and spaced apart to form a receiving space 3. As an example, one of the first surface 211 and the second surface 221 may be provided with a mounting post 23, and the other may be provided with a corresponding mounting hole. When the first surface 211 and the second surface 221 are opposite to each other, the mounting post 23 cooperates with the mounting hole to position the first partition 21 and the second partition 22, and then the first partition 21 and the second partition 22 are fixedly connected by bolt connection or welding connection. By setting the installation component 2 as the first separator 21 and the second separator 22, before the first separator 21 and the second separator 22 are connected, the filler 1 can be set in a visible state on the first surface 211 and the second surface 221. After the setting is completed, the first separator 21 and the second separator 22 are set at a relative interval to form a receiving space 3 to limit the filler 1, which has the effect of facilitating the installation of the filler 1, reducing the difficulty of operation, and helping to further improve the uniformity of the arrangement of the filler 1.

[0066] In some embodiments, the first surface 211 and / or the second surface 221 are provided with receiving grooves 24, and the filler 1 is embedded and fixed in the receiving grooves 24. The first surface 211 and / or the second surface 221 being provided with receiving grooves 24 means that only the first surface 211 or the second surface 221 is provided with a receiving groove 24, or both the first surface 211 and the second surface 221 are provided with receiving grooves 24. By providing the receiving grooves 24, the filler 1 can be embedded and fixed within the receiving grooves 24, improving the installation stability of the filler 1.

[0067] Optionally, the circumferential edges of the first surface 211 and / or the second surface 221 are provided with receiving grooves 24, that is, the circumferential edges of the first surface 211 are provided with receiving grooves 24, or the circumferential edges of the second surface 221 are provided with receiving grooves 24, or both the circumferential edges of the first surface 211 and the circumferential edges of the second surface 221 are provided with receiving grooves 24.

[0068] For example, such as Figure 4 As shown, a receiving groove 24 is provided on the first surface 211 of the first separator 21 along the circumferential edge of the first surface 211, and a receiving groove 24 is also provided in the middle part of the first surface 211. The method by which the filler 1 is embedded and fixed in the receiving groove 24 on the first surface 211 includes: the filler 1 is formed with a structure adapted to the shape of the first surface 211 so as to be interlocked with the receiving groove 24 of the first surface 211.

[0069] In some embodiments, at least one of the first partition 21 and the second partition 22 is provided with a plurality of snap-fit ​​members 25 for abutting against the vehicle body 1000 and forming a gap between the outer peripheral surface of the mounting assembly 2 and the vehicle body 1000. The outer peripheral surface of the mounting assembly 2 refers to the surface of the first partition 21 facing the inner wall of the cavity 1002, and the surface of the second partition 22 facing the inner wall of the cavity 1002. The snap-fit ​​members 25 extend beyond the edge of the mounting assembly 2, exceeding the outer peripheral surface of the mounting assembly 2, thereby abutting against the inner wall of the cavity 1002 in place of the outer peripheral surface of the mounting assembly 2. As an example of this application, such as Figure 4 As shown, the first partition 21 is provided with multiple snap-fit ​​pieces 25, with each pair of snap-fit ​​pieces 25 forming a group and arranged opposite each other on both sides of the first surface 211 to engage in the cavity 1002. By providing the snap-fit ​​pieces 25, the mounting component 2 can be easily snapped into the cavity 1002 for positioning, facilitating installation. Furthermore, the snap-fit ​​pieces 25 also create a gap between the mounting component 2 and the inner wall of the cavity 1002. When the structural components of the vehicle body 1000 are coated using an electrophoresis process, this gap allows the electrophoretic liquid to drain out, and the gap can then be sealed with the filler piece 1 to improve the blocking effect.

[0070] In some embodiments, at least one of the first partition 21 and the second partition 22 is provided with a fixing member 26, which is used to fix it to the vehicle body 1000. Through the cooperation of the snap-fit ​​member 25 and the fixing member 26, during installation, the snap-fit ​​member 25 is used for positioning and fixing, and then the fixing member 26 is used for fixed connection to the sheet metal structure of the vehicle body 1000. This facilitates operation in the confined cavity 1002 and reduces processing difficulty. Optionally, the fixing member 26 can be fixed to the vehicle body 1000 by welding, bolting, or other methods.

[0071] In some embodiments, the blocking structure 1003 has a first state and a second state:

[0072] In the first state, the filler 1 is located within the receiving space 3;

[0073] In the second state, the filler 1 extends out of the receiving space 3 to seal the gap between the mounting assembly 2 and the vehicle body 1000.

[0074] The first state can be when the blocking structure 1003 is manufactured as a product. By housing the filler 1 within the receiving space 3, it serves to protect the filler 1 and facilitate storage and transportation. The second state can be when the blocking structure 1003 is applied to the cavity 1002 of the pillar 1001. By allowing the filler 1 to extend from the receiving space 3, it seals the gap between the mounting assembly 2 and the vehicle body 1000, thereby improving the blocking capability of the blocking structure 1003.

[0075] There are multiple ways to switch the state of the blocking structure 1003. In some embodiments, the filler 1 expands under the action of external factors to extend out of the receiving space 3, so that the blocking structure 1003 switches from the first state to the second state.

[0076] As an example of this application, the filler 1 includes a foamed material, and the external factors include temperature. In a first state, the filler 1 is disposed on the first surface 211 and housed in the receiving space 3 between the first surface 211 and the second surface 221. After being installed in the cavity 1002 of the pillar 1001, the filler 1 is heated to cause it to foam and expand, thereby filling the receiving space 3 and extending out of the receiving space 3 to seal the gap between the mounting assembly 2 and the inner wall of the cavity 1002, thereby switching to the second state. Optionally, when it is necessary to use an electrophoresis process to paint the structural components of the vehicle body 1000, the electrophoresis process can be performed first so that the electrophoretic liquid can be discharged through the gap between the mounting assembly 2 and the inner wall of the cavity 1002. After the electrophoresis is completed, the filler 1 is heated to seal the gap.

[0077] Furthermore, when the filler 1 includes foamed material, the external factors may also be different depending on the foaming expansion method. For example, the external factors may include gas filling, such as introducing gas into the interior of the filler 1 through chemical gas generation or physical gas filling to cause it to foam and expand.

[0078] As further examples of this application, the filler 1 can be pre-formed using porous materials such as sponge or foam plastic, and external factors include pressure. Exemplarily, in the first state, a certain pressure is applied to the filler 1 to house it in the receiving space 3 by means of folding, compression, etc.; when in use, the pressure is released, causing the filler 1 to lose the pressure and extend out of the receiving space 3, thereby switching to the second state.

[0079] The structure formed by the foaming of filler 1 has a porous interior and a smooth exterior, which not only absorbs sound and reduces noise but also provides a certain degree of waterproofing, meeting waterproofing requirements under normal driving conditions. In some embodiments, please refer again... Figure 3 As shown, the blocking structure 1003 also includes a seal 4, which is disposed on the mounting assembly 2 and used to seal the gap between the mounting assembly 2 and the vehicle body 1000. It should be noted that when the blocking structure 1003 is applied to the vehicle body 1000, the gap between the mounting assembly 2 and the vehicle body 1000 is the same as the gap between the mounting assembly 2 and the inner wall of the cavity 1002. By using the seal 4 to seal the gap between the mounting assembly 2 and the vehicle body 1000, the waterproof effect of the blocking structure 1003 can be further improved, alleviating the problem of water ingress when the vehicle is driving through flooded areas.

[0080] As an example, the seal 4 may be disposed in the receiving space 3 of the mounting assembly 2. Exemplarily, the seal 4 extends at least partially out of the receiving space 3 to seal the gap between the mounting assembly 2 and the vehicle body 1000.

[0081] As another example, a seal 4 is disposed on the surface of the mounting assembly 2. Exemplarily, the seal 4 is at least partially located in the gap between the mounting assembly 2 and the vehicle body 1000. As previously described, the surface of the mounting assembly 2 includes an outer peripheral surface, a first surface 211 and a second surface 221 for forming the receiving space 3, and further includes two separating surfaces 27 for separating the cavity 1002, the two separating surfaces 27 being located on opposite sides of the outer peripheral surface and facing away from each other. Exemplarily, as... Figure 4 As shown, the side of the first separator 21 facing away from the first surface 211 is a separator surface 27; as Figure 5 As shown, the side of the second separator 22 opposite to the second surface 221 is another separator surface 27. The sealing member 4 is disposed on the surface of the mounting assembly 2 including: the sealing member 4 is disposed on the outer peripheral surface, the first surface 211, the second surface 221, and at least one of the two separator surfaces 27.

[0082] In some embodiments, the seal 4 has different structures when the blocking structure 1003 is in a first state and a second state. For example, in the first state, the seal 4 covers at least a portion of the surface of the mounting assembly 2; while in the second state, the seal 4 covers at least a portion of the surface of the mounting assembly 2, as well as the surface of the portion of the filler 1 that extends out of the receiving space 3.

[0083] As before, as Figure 5 As shown, the first state can be the state in which the blocking structure 1003 is manufactured as a product, such as... Figure 6 As shown, the second state can be the state in which the blocking structure 1003 is applied to the cavity 1002 of the column 1001. As an example of this application, such as... Figure 5 As shown, in the first state, the seal 4 covers the partition surface 27; as Figure 6 As shown, in the second state, the seal 4 extends out of the partition surface 27 to abut or adhere to the inner wall of the cavity 1002, thereby sealing the gap between the mounting assembly 2 and the vehicle body 1000 and improving the blocking capability of the blocking structure 1003.

[0084] When the filler 1 does not extend beyond the receiving space 3, the seal 4 can independently seal the gap, utilizing the filler 1 for sound absorption and noise reduction, and the seal 4 for enhanced waterproof and dustproof performance. When the filler 1 extends beyond the receiving space 3, the filler 1 supports the seal 4, ensuring that the seal 4 is well-formed and has a good connection with the inner wall of the cavity 1002; the seal 4 covering the surface of the filler 1 can compensate for any porosity that may exist on the surface of the filler 1. Therefore, the combined effect of the filler 1 and the seal 4 can greatly enhance the blocking capability of the blocking structure 1003 and improve the waterproof and noise reduction effect.

[0085] There are various ways to change the structure of the seal 4 in the first state and the second state. In some embodiments, the seal 4 covers the part of the filler 1 that extends out of the receiving space 3 under the action of external factors, so that the blocking structure 1003 switches from the first state to the second state.

[0086] As an example of this application, the seal 4 includes a hot melt adhesive, and the external factor includes temperature. In a first state, the seal 4 is fixed in the receiving space 3 or the partition surface 27 of the mounting assembly 2 for storage and transportation. After being installed in the cavity 1002 of the pillar 1001, the seal 4 is heated to allow it to melt and flow, thereby covering the portion of the filler 1 that extends out of the receiving space 3 and flowing into the gap between the mounting assembly 2 and the inner wall of the cavity 1002. This forms a waterproof layer extending to the inner wall of the cavity 1002 after cooling and curing, allowing the blocking structure 1003 to switch to the second state. Optionally, when the structural components of the vehicle body 1000 need to be coated using an electrophoresis process, the electrophoresis process can be performed first to allow the electrophoretic liquid to drain through the gap between the mounting assembly 2 and the inner wall of the cavity 1002. After electrophoresis is completed, the seal 4 is heated to seal the gap.

[0087] In embodiments where the filler 1 uses a heat-blown foaming material, by setting the sealant 4 as a hot melt adhesive, foaming and hot-melt sealing can be completed in a single heating process without additional steps. Optionally, during the heating process, when the blocking structure 1003 is heated to a first temperature, the filler 1 expands to extend out of the receiving space 3; when the blocking structure is heated to a second temperature, the sealant 4 melts and flows to cover the portion of the filler 1 extending out of the receiving space 3. The first temperature is lower than the second temperature, so that the filler 1 expands and forms first, and the sealant 4 melts and flows later. The filler 1 acts as a support, preventing the sealant 4 from flowing away from the gap after melting due to excessively large gaps, thus ensuring that the sealant 4 provides a good sealing effect. At the same time, the filler 1 is evenly distributed in the gaps and occupies more space, resulting in a better sound blocking effect.

[0088] Furthermore, when seal 4 includes other types of sealant, external factors may include other elements. For example, the sealant 4 includes a chemically vulcanizing sealant, comprising a two-component material isolated on the partition surface 27. After the blocking structure 1003 is installed in the cavity 1002 of the column 1001, the isolation between the two components is removed, and both flow towards the inner wall of the cavity 1002 and mix and cure to achieve a seal. Alternatively, the sealant 4 includes an oxidatively curing sealant, in which the sealant material is placed on the partition surface 27 and isolated from air. After the blocking structure 1003 is installed in the cavity 1002 of the column 1001, the isolation is removed, allowing it to flow towards the inner wall of the cavity 1002 and cure upon contact with air to achieve a seal. Yet another example is a solvent-evaporating curing sealant, in which the sealant material is placed on the partition surface 27 and isolated from air. After the blocking structure 1003 is installed in the cavity 1002 of the column 1001, the isolation is removed, allowing it to flow towards the inner wall of the cavity 1002, and cure after the solvent evaporates to achieve a seal.

[0089] As further examples of this application, the seal 4 can also be pre-formed using solid materials such as rubber or film, and external factors include pressure. Exemplarily, in the first state, a certain pressure is applied to the seal 4 to make it stacked on the partition surface 27 by folding, compression, or other means; during use, the pressure is released, causing the seal 4 to lose its pressure and protrude from the partition surface 27, and then it is pressed and bonded to the inner wall of the cavity 1002 and the portion of the filler 1 that protrudes from the receiving space 3, thereby switching to the second state.

[0090] In some embodiments, the seal 4 is disposed on a partition surface 27 of the mounting assembly 2. During installation, the partition surface 27 with the seal 4 is positioned upwards, so that the filler 1 can receive the hot melt adhesive flowing upwards after it extends out of the receiving space 3. In this embodiment, the orientation "up" and "down" refer to the vertical relationship in the direction of gravity.

[0091] In other embodiments, the seal 4 may also be disposed on the downward-facing partition surface 27, flowing towards the inner wall of the cavity 1002 under the action of external force during hot melting, thereby extending from the partition surface 27 to the inner wall of the cavity 1002 to form a waterproof layer. For example, in the hot melting state, the hot melt adhesive can be covered on the edge of the partition surface 27 and the filler 1 and bonded to the inner wall of the cavity 1002 by means of high-pressure gas purging, robotic arm application, etc.

[0092] That is, in some embodiments, a seal 4 may be provided on at least one of the two separating surfaces 27.

[0093] The seal 4 can completely cover the partition surface 27, or it can cover the edge of the partition surface 27. For example... Figure 7As shown, the separating surface 27 includes a central region 271 and an edge region 272, with the edge region 272 surrounding the central region 271 and the seal 4 covering the edge region 272. By having the seal 4 cover the edge region 272, after the seal 4 extends toward the inner wall of the cavity 1002, it not only seals the gap between the inner wall of the cavity 1002 and the mounting assembly 2, but also seals the gap between the mounting assembly 2 and the filler 1. This prevents water from flowing into the receiving space 3, penetrating the filler 1, and entering the other side of the blocking structure 1003, thereby further improving the waterproof and noise reduction blocking capabilities.

[0094] In some embodiments, the central region 271 protrudes relative to the edge region 272, and the central region 271 serves to position the seal 4. Furthermore, in embodiments where the seal 4 includes hot melt adhesive, the hot melt adhesive is guided towards the inner wall of the cavity 1002 by the blocking effect of the central region 271, achieving better molding and sealing effects.

[0095] In some embodiments, one of the edge region 272 and the seal 4 is provided with a protrusion 273 and the other is provided with a groove, the groove engaging with the protrusion 273.

[0096] As an example of this application, such as Figure 7 As shown, in the barrier surface of the second separator 22, the central region 271 protrudes relative to the edge region 272, and the edge region 272 is provided with a plurality of spaced protrusions 273. The side of the seal 4 facing the barrier surface is provided with a groove. The protrusions 273 on the edge region 272 cooperate with the groove on the seal 4 to install the seal 4 on the barrier surface.

[0097] Because the vehicle body 1000 of this application embodiment has the above-mentioned blocking structure 1003, the cavity 1002 of its pillar 1001 is not easy to get water or noise in, and has good sealing performance, which effectively improves the NVH performance of the vehicle.

[0098] It should be noted that the blocking structure 1003 provided in this application embodiment is not only applicable to the cavity 1002 of the pillar 1001 of the vehicle body 1000, but also applicable to the blocking of cavities in other parts of the vehicle body 1000, such as cavities in car doors. Furthermore, the blocking structure 1003 provided in this application embodiment is also applicable to separating and blocking cavities of other objects. In summary, the blocking structure 1003 provided in this application embodiment has an mounting component 2 that can be disposed within the cavity of an object to separate the cavity. The mounting component 2 has a receiving space 3, which defines the molding space of the filler 1, allowing the filler 1 to be evenly distributed and molded, thereby avoiding uneven distribution and voids in the filler 1 and improving the blocking effect of the blocking structure 1003.

[0099] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0100] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0101] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0102] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A blocking structure, characterized in that, include: Filler; An installation assembly is provided for placement within a cavity of an object to separate the cavity. The installation assembly has a receiving space to accommodate the filler. The installation assembly is a split-type structure.

2. The blocking structure according to claim 1, characterized in that, The mounting assembly includes a first partition and a second partition, the first partition having a first surface and the second partition having a second surface, the first surface and the second surface being opposite to and spaced apart to form the receiving space.

3. The blocking structure according to claim 2, characterized in that, The first surface and / or the second surface are provided with receiving grooves, and the filler is embedded and fixed in the receiving grooves.

4. The blocking structure according to claim 3, characterized in that, The receiving groove is provided on the circumferential edge of the first surface and / or the second surface.

5. The blocking structure according to claim 2, characterized in that, At least one of the first partition and the second partition is provided with at least one snap-fit ​​member, the snap-fit ​​member being used to abut against the inner wall of the cavity and to form a gap between the outer peripheral surface of the mounting assembly and the inner wall of the cavity.

6. The blocking structure according to claim 5, characterized in that, At least one of the first partition and the second partition is provided with a fixing member, which is used to fix it to the inner wall of the cavity.

7. The blocking structure according to claim 1, characterized in that, The blocking structure has a first state and a second state: In the first state, the filler is located within the receiving space; In the second state, the filler extends out of the receiving space to seal the gap between the mounting assembly and the inner wall of the cavity.

8. The blocking structure according to claim 7, characterized in that, The filler expands under the action of external factors to extend out of the receiving space, causing the blocking structure to switch from the first state to the second state.

9. The blocking structure according to any one of claims 1-8, characterized in that, Also includes: A seal is disposed on the mounting assembly for sealing the gap between the mounting assembly and the inner wall of the cavity.

10. The blocking structure according to claim 9, characterized in that, The blocking structure has a first state and a second state: In the first state, the seal covers at least a portion of the surface of the mounting assembly; In the second state, the seal covers at least a portion of the surface of the mounting assembly and the surface of the portion of the filler that extends out of the receiving space.

11. The blocking structure according to claim 10, characterized in that, The seal covers the portion of the filler that extends out of the receiving space under the action of an external factor, so that the blocking structure switches from the first state to the second state.

12. The blocking structure according to claim 10, characterized in that, The mounting assembly includes an outer peripheral surface and two separating surfaces, the gap being formed between the outer peripheral surface and the inner wall of the cavity, the two separating surfaces being disposed on both sides of the outer peripheral surface to separate the cavity, and at least one of the two separating surfaces being provided with the sealing element.

13. The blocking structure according to claim 12, characterized in that, The separating surface includes a central region and an edge region, the edge region surrounding the central region, and the seal covering at least a portion of the edge region.

14. The blocking structure according to claim 13, characterized in that, The central region protrudes relative to the edge region.

15. The blocking structure according to claim 13, characterized in that, One of the edge region and the seal is provided with a protrusion and the other is provided with a groove, the groove engaging with the protrusion.

16. The blocking structure according to claim 11, characterized in that, The filler is located within the receiving space in the first state, and the filler extends out of the receiving space in the second state to seal the gap between the mounting assembly and the inner wall of the cavity. The filler and the sealing member change under the action of external factors to switch the blocking structure from the first state to the second state. The external factors include temperature. When the blocking structure is heated to a first temperature, the filler expands to extend out of the receiving space. When the blocking structure is heated to a second temperature, the seal melts and flows to cover the portion of the filler extending out of the receiving space. The first temperature is lower than the second temperature.

17. A vehicle body, characterized in that, include: The column has an internal cavity; The blocking structure according to any one of claims 1-16 is disposed within the cavity.

18. A vehicle, characterized in that, Includes the vehicle body as described in claim 17.

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