Vehicle body stand column connecting structure, vehicle body assembly and vehicle
By connecting the lower part of the body column with the inner plate and reinforcement of the door sill side beam, the problem of insufficient connection strength of the existing body column is solved, achieving stronger connection strength and better occupant protection.
Patent Information
- Application Number
- CN202421747579.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The lower connection strength of the existing body column is insufficient, and it is prone to breakage during side bumps and column bump verification, which cannot effectively protect the personnel in the occupant's compartment.
The connection strength is increased by connecting it to the inner plate of the sill side beam and the reinforcement at the lower part of the body column. The specific method includes fixing the sill side beam reinforcement on the inner side of the inner plate of the sill side beam, and connecting the upper part to the inner plate of the column, and connecting the lower part of the inner plate of the sill side beam and the lower part of the sill side beam reinforcement at the lower part of the sill side beam inner plate, and enhancing the connection strength by welding.
It effectively enhances the lower connection strength of the body column, prevents breakage, provides better occupant protection, and optimizes the connection method between the body column and other components, improving the overall connection strength.
Smart Images
Figure CN222820140U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of vehicle technology, and in particular to a vehicle body pillar connection structure, a vehicle body assembly and a vehicle. Background Art
[0002] At present, as users pay more attention to automobile safety, at the same time, in order to meet the requirements of automobile exit collision, the demand for side collision safety is getting higher and higher.
[0003] Existing vehicle body pillars generally include A-pillars, B-pillars and C-pillars, and some vehicle body pillars also include D-pillars. Taking the B-pillar as an example to illustrate the connection structure of the B-pillar, the lower part of the vehicle body pillar is connected to the upper part of the door sill side beam. In the side collision and pillar collision verification, the lower part of the vehicle body pillar has insufficient connection strength and is prone to collision fracture, thereby causing injuries to the torso and head of the occupant in the passenger compartment, and failing to provide effective protection for the occupant in the passenger compartment. Similarly, the A-pillar, C-pillar and D-pillar also have insufficient lower connection strength and are prone to collision fracture. Utility Model Content
[0004] In view of this, the embodiments of the present application provide a vehicle body pillar connection structure, a vehicle body assembly and a vehicle to solve the problem that the lower connection strength of the vehicle body pillar is insufficient and prone to collision fracture.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the embodiment of the present application is implemented as follows:
[0006] In a first aspect, an embodiment of the present application provides a vehicle body pillar connection structure for connecting a vehicle body pillar, wherein the vehicle body pillar includes a pillar inner panel, and is characterized in that the vehicle body pillar connection structure includes: a sill side beam inner panel, fixed to the inner side of the pillar inner panel; a sill side beam reinforcement, fixed to the inner side of the sill side beam inner panel, wherein the upper portion of the sill side beam reinforcement extends upward to the upper portion of the pillar inner panel and is connected to the pillar inner panel.
[0007] Beneficial effect: a sill side beam reinforcement is fixed on the inner side of a sill side beam inner plate, the sill side beam inner plate is a part of the lower vehicle body, the pillar inner plate is a part of the upper vehicle body, the upper portion of the sill side beam reinforcement is connected to the pillar inner plate and the sill side beam reinforcement is fixed on the inner side of the sill side beam inner plate, the upper vehicle body and the lower vehicle body are connected via the sill side beam reinforcement, the connection strength is additionally increased, the vehicle body pillar is strengthened, the side collision intrusion amount is guaranteed, the vehicle body pillar is prevented from being broken, and further effective protection is provided for the personnel in the passenger compartment, effectively solving the problem that the existing vehicle body pillar has insufficient connection strength at the lower portion and is prone to collision and breakage.
[0008] In a possible implementation of the present application, the inner plate of the sill side beam has a matching portion corresponding to the lower portion of the sill side beam reinforcement, the lower portion of the pillar inner plate extends downward to the matching portion, and the lower portion of the pillar inner plate, the matching portion of the inner plate of the sill side beam and the lower portion of the sill side beam reinforcement are connected.
[0009] Beneficial effect: The lower part of the vehicle body pillar is extended downward and connected with the matching part of the inner plate of the sill side beam and the lower part of the sill side beam reinforcement, so that the upper part and the lower part of the inner plate of the pillar are connected to the sill side beam reinforcement, further improving the connection strength of the lower part of the vehicle body pillar, thereby enhancing the connection strength of the vehicle body pillar, preventing the lower part of the vehicle body pillar from breaking and affecting the collision effect. At the same time, the lower part of the inner plate of the pillar, the matching part of the inner plate of the sill side beam and the lower part of the sill side beam reinforcement are connected together, which also optimizes the connection method of the vehicle body pillar and other components, and ensures the connection strength between the upper and lower vehicle bodies.
[0010] In a possible implementation of the present application, the lower portion of the pillar inner panel, the matching portion of the sill side beam inner panel, and the lower portion of the sill side beam reinforcement are overlapped and welded.
[0011] Beneficial effects: The overlap of the lower part of the column inner plate, the matching part of the sill side beam inner plate and the lower part of the sill side beam reinforcement makes the sill side beam reinforcement form an effective overlap, which can increase the overlap area of the overlap, effectively increase the connection strength, and the welding connection method has the advantages of strong integrity, high strength, high rigidity, etc., which greatly enhances the connection strength.
[0012] In a possible implementation of the present application, the vehicle body pillar connection structure also includes a sill side beam outer plate, which is fixed to the outer side of the pillar inner plate, and the upper part of the sill side beam outer plate, the pillar inner plate and the upper part of the sill side beam inner plate are connected.
[0013] Beneficial effect: The threshold side beam outer plate, the pillar inner plate and the threshold side beam inner plate are connected together, so that the vehicle body pillar is connected to the threshold side beam outer plate, the threshold side beam inner plate and the threshold side beam reinforcement, which effectively ensures the connection strength of the vehicle body pillar.
[0014] In a possible implementation of the present application, the upper portion of the outer plate of the sill side beam, the inner plate of the pillar, and the upper portion of the inner plate of the sill side beam are overlapped and welded.
[0015] Beneficial effect: The overlap of the threshold side beam outer plate, the column inner plate and the threshold side beam inner plate can increase the overlap area of the overlap, effectively ensure the connection strength, and the welding connection method has integrity.
[0016] In a possible implementation of the present application, the sill side beam reinforcement has an avoidance hole for avoiding the connection between the upper portion of the sill side beam outer plate, the pillar inner plate and the upper portion of the sill side beam inner plate.
[0017] Beneficial effect: By opening an avoidance hole in the threshold side beam reinforcement, the connection between the upper part of the threshold side beam outer plate, the column inner plate and the upper part of the threshold side beam inner plate can be avoided, and when connecting the upper part of the threshold side beam outer plate, the column inner plate and the upper part of the threshold side beam inner plate, there will be no interference with the threshold side beam reinforcement.
[0018] In a possible implementation of the present application, a through hole is provided on the outer plate of the sill side beam corresponding to the connection between the lower portion of the sill side beam reinforcement, the matching portion of the inner plate of the sill side beam and the lower portion of the inner plate of the pillar, and the through hole is used for passing the connecting component.
[0019] Beneficial effect: When connecting the lower part of the pillar inner plate, the matching part of the threshold side beam inner plate and the lower part of the threshold side beam reinforcement, the connecting component is connected to the lower part of the pillar inner plate, the matching part of the threshold side beam inner plate and the lower part of the threshold side beam reinforcement through the through hole reserved on the threshold side beam outer plate, which is more convenient for connection.
[0020] In a possible implementation of the present application, connection holes are provided on the upper portion of the pillar inner plate and the upper portion of the door sill side beam reinforcement, and the connection holes are used to be connected to the retractor bolts.
[0021] Beneficial effect: The upper part of the pillar inner plate and the upper part of the door sill side beam reinforcement are connected together by retractor bolts, and no separate bolts are needed. The connection between the upper and lower car bodies can also be achieved, and the connection efficiency is greatly enhanced, which effectively avoids the breakage of the original insufficient connection part.
[0022] In a second aspect, an embodiment of the present application provides a vehicle body assembly, including: a vehicle body pillar, including a pillar inner panel; and the above-mentioned vehicle body pillar connection structure, which is assembled and connected with the pillar inner panel.
[0023] In a third aspect, an embodiment of the present application provides a vehicle, comprising: the above-mentioned vehicle body pillar connection structure, or the above-mentioned vehicle body assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic diagram of a vehicle body pillar connection structure provided in an embodiment of the present application.
[0025] Reference numerals:
[0026] 1. Inner plate of column; 101. Connection hole;
[0027] 2. Inner plate of threshold side beam;
[0028] 3. Door sill side beam reinforcement; 301. Avoidance hole;
[0029] 4. Threshold side beam outer plate; 401. Through hole;
[0030] 5. First connection;
[0031] 6. The second connection point. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the specific technical solution of the present application will be further described in detail below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but are not used to limit the scope of the present application.
[0033] In the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, unless otherwise specified, "multiple" means two or more.
[0034] In addition, in the embodiments of the present application, directional terms such as "up", "down", "left" and "right" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the changes in the orientation of the components in the drawings.
[0035] In the embodiments of the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0036] In the embodiments of the present application, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0037] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.
[0038] Combine the following Figure 1 , describing an embodiment of the present application.
[0039] According to an embodiment of the present application, on the one hand, a vehicle body pillar connection structure is provided, which is used to connect vehicle body pillars. The vehicle body pillars generally include A pillars, B pillars and C pillars, and some vehicle body pillars also include D pillars. The connection structure is described by taking the B pillar as an example:
[0040] The B-pillar includes a pillar inner panel 1, and the vehicle body pillar connection structure includes: a sill side beam inner panel 2 and a sill side beam reinforcement 3, the sill side beam inner panel 2 is fixed to the inner side of the pillar inner panel 1; the sill side beam reinforcement 3 is fixed to the inner side of the sill side beam inner panel 2, and the upper part of the sill side beam reinforcement 3 extends upward to the upper part of the pillar inner panel 1 and is connected to the pillar inner panel 1.
[0041] By applying the vehicle body pillar connection structure of the present embodiment, a sill side beam reinforcement 3 is fixed on the inner side of a sill side beam inner plate 2, the sill side beam inner plate 2 is a part of the lower vehicle body, and the pillar inner plate 1 is a part of the upper vehicle body. The upper portion of the sill side beam reinforcement 3 is connected to the pillar inner plate 1 and the sill side beam reinforcement 1 is fixed on the inner side of the sill side beam inner plate 2. The upper vehicle body and the lower vehicle body are connected via the sill side beam reinforcement 3, the connection strength is additionally increased, the B-pillar is strengthened, the side collision intrusion amount is guaranteed, the B-pillar is prevented from being broken, and effective protection is provided for the personnel in the passenger compartment, and the problem of insufficient connection strength at the lower portion of the existing B-pillar, which is prone to collision and breakage, is effectively solved.
[0042] It should be noted that, in the embodiment of the present application, the vehicle body pillar connection structure is not only applicable to the B-pillar, but also to the A-pillar, C-pillar, and D-pillar.
[0043] Among them, up and down refer to Figure 1 The arrows in the middle point to the "up" and "down" directions, and the inside and outside refer to Figure 1 The arrow in the middle points to the "inside and outside" direction.
[0044] It should be noted that in the embodiment of the present application, there is no limitation on the molding method and material of the sill side beam reinforcement 3, which can be machined and the like, and can be flexibly selected according to manufacturing convenience.
[0045] Furthermore, in some embodiments of the present application, the sill side beam inner plate 2 has a matching portion corresponding to the lower portion of the sill side beam reinforcement 3, the lower portion of the pillar inner plate 1 extends downward to the matching portion, and the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2 and the lower portion of the sill side beam reinforcement 3 are connected. The lower portion of the B-pillar is extended downward and connected to the matching portion of the sill side beam inner plate 2 and the lower portion of the sill side beam reinforcement 3, so that the upper and lower portions of the pillar inner plate 1 are connected to the sill side beam reinforcement 3, further improving the connection strength of the lower portion of the B-pillar, thereby enhancing the connection strength of the B-pillar, and preventing the lower portion of the B-pillar from being broken and affecting the collision effect. At the same time, the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2 and the lower portion of the sill side beam reinforcement 3 are connected together, which also optimizes the connection method of the B-pillar with other components and ensures the connection strength between the upper and lower vehicle bodies.
[0046] Furthermore, in some embodiments of the present application, the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2, and the lower portion of the sill side beam reinforcement 3 are overlapped and welded. The overlap of the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2, and the lower portion of the sill side beam reinforcement 3 enables the sill side beam reinforcement 3 to form an effective overlap, which can increase the overlap area at the overlap, effectively increase the connection strength, and the welding connection method has the advantages of strong integrity, high strength, and high rigidity, so that the connection strength is greatly enhanced.
[0047] Specifically, the pillar inner plate 1, the sill side beam inner plate 2 and the sill side beam reinforcement 3 are all thin plates. The thin plates are light in weight and can effectively control the weight of the vehicle body while enhancing the connection strength of the B-pillar.
[0048] Preferably, the lower portion of the pillar inner panel 1, the mating portion of the sill side beam inner panel 2 and the lower portion of the sill side beam reinforcement 3 are connected by spot welding. The advantages of spot welding are fast welding speed, shallow melting depth, small heat-affected zone and low pressure on the substrate.
[0049] In addition, it should be noted that the welding method of the lower part of the pillar inner panel 1, the matching part of the sill side beam inner panel 2 and the lower part of the sill side beam reinforcement 3 is not limited to the above-mentioned method and can be selected according to actual needs.
[0050] In this embodiment, there is no limitation on the molding method and material of the pillar inner plate 1 and the door sill side beam inner plate 2, as long as they can be manufactured conveniently.
[0051] In addition, it should be noted that in the embodiment of the present application, the connection method of the lower part of the pillar inner panel 1, the matching part of the sill side beam inner panel 2 and the lower part of the sill side beam reinforcement 3 is not limited to the above-mentioned method. For example, the lower part of the pillar inner panel 1, the matching part of the sill side beam inner panel 2 and the lower part of the sill side beam reinforcement 3 are connected by fasteners, as long as the connection form is reliable and easy to operate.
[0052] Furthermore, in some embodiments of the present application, the vehicle body pillar connection structure further includes a sill side beam outer plate 4, which is fixed to the outer side of the pillar inner plate 1, and the upper part of the sill side beam outer plate 4, the pillar inner plate 1 and the upper part of the sill side beam inner plate 2 are connected. The sill side beam outer plate 4, the pillar inner plate 1 and the sill side beam inner plate 2 are connected together, so that the B-pillar is connected to the sill side beam outer plate 4, the sill side beam inner plate 2 and the sill side beam reinforcement 3, which effectively ensures the connection strength of the B-pillar.
[0053] It should be noted that in the embodiment of the present application, there is no limitation on the molding method and material of the sill side beam outer plate 4, and it can be machined and formed, and can be manufactured according to the needs.
[0054] Furthermore, in some embodiments of the present application, the upper portion of the sill side beam outer plate 4, the column inner plate 1 and the upper portion of the sill side beam inner plate 2 are overlapped and welded. The overlap of the sill side beam outer plate 4, the column inner plate 1 and the sill side beam inner plate 2 can increase the overlap area at the overlap, effectively ensuring the connection strength, and the welding connection method has the advantages of strong integrity, high strength, high rigidity, etc., which greatly enhances the connection strength.
[0055] Specifically, the sill side beam outer plate 4 is a thin plate member, which is light in weight and can effectively control the weight of the vehicle body while enhancing the connection strength of the B-pillar.
[0056] Preferably, the threshold side beam outer plate 4, the column inner plate 1 and the threshold side beam inner plate 2 are connected by spot welding. The advantages of spot welding are fast welding speed, shallow melting depth, small heat-affected zone and low pressure on the substrate.
[0057] Furthermore, in some embodiments of the present application, the sill side beam reinforcement 3 has an avoidance hole 301 for avoiding the connection between the upper part of the sill side beam outer plate 4, the pillar inner plate 1 and the upper part of the sill side beam inner plate 2. By providing the avoidance hole 301 in the sill side beam reinforcement 3, the connection between the upper part of the sill side beam outer plate 4, the pillar inner plate 1 and the upper part of the sill side beam inner plate 2 can be avoided, and the upper part of the sill side beam outer plate 4, the pillar inner plate 1 and the upper part of the sill side beam inner plate 2 will not interfere with the sill side beam reinforcement 3 when connecting them.
[0058] In addition, it should be noted that in the embodiment of the present application, the avoidance hole 301 may not be provided, and the upper part of the sill side beam outer plate 4, the pillar inner plate 1, the upper part of the sill side beam inner plate 2 and the sill side beam reinforcement 3 are connected together.
[0059] Furthermore, in some embodiments of the present application, a through hole 401 is provided on the sill side beam outer plate 4 at a connection position corresponding to the lower portion of the sill side beam reinforcement 3, the matching portion of the sill side beam inner plate 2, and the lower portion of the pillar inner plate 1, and the through hole 401 is used for the connection component to pass through. When connecting the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2, and the lower portion of the sill side beam reinforcement 3, the connection component is connected to the lower portion of the pillar inner plate 1, the matching portion of the sill side beam inner plate 2, and the lower portion of the sill side beam reinforcement 3 through the through hole 401 reserved on the sill side beam outer plate 4, which is more convenient for connection.
[0060] Specifically, when the lower part of the pillar inner panel 1, the matching part of the sill side beam inner panel 2 and the lower part of the sill side beam reinforcement 3 are connected by welding, the connecting component is a welding clamp, and the welding clamp is passed through the through hole 401 reserved on the sill side beam outer panel 4 to connect the lower part of the pillar inner panel 1, the matching part of the sill side beam inner panel 2 and the lower part of the sill side beam reinforcement 3 by spot welding.
[0061] Among them, Figure 1 In the figure, the connection between the lower part of the pillar inner plate 1, the matching part of the sill side beam inner plate 2 and the lower part of the sill side beam reinforcement 3 is the first connection 5, and the connection between the upper part of the sill side beam outer plate 4, the pillar inner plate 1 and the upper part of the sill side beam inner plate 2 is the second connection 6.
[0062] Furthermore, in some embodiments of the present application, a connection hole 101 is provided on the upper portion of the pillar inner panel 1 and the upper portion of the sill side beam reinforcement 3, and the connection hole 101 is used to connect with the retractor bolt. The upper portion of the pillar inner panel 1 and the upper portion of the sill side beam reinforcement 3 are connected together by the retractor bolt, and the connection between the upper and lower car bodies can be achieved without adding bolts separately, and the connection efficiency is greatly enhanced, effectively avoiding the situation where the original insufficient connection part occurs.
[0063] Specifically, when assembling the vehicle body pillar connection structure, firstly, the sill side beam reinforcement 3 and the sill side beam inner panel 2 are spot welded to form a welding assembly, and the pillar inner panel 1 is welded to the sill side beam outer panel 4 to form a side assembly. Since the pillar inner panel 1 is longer than the ordinary pillar inner panel and extends downward to the matching part of the sill side beam inner panel 2, after the upper and lower vehicle bodies are assembled, the sill side beam outer panel 4, the pillar inner panel 1, and the sill side beam inner panel 2 are connected by spot welding. At the same time, the pillar inner panel 1, the sill side beam inner panel 2, and the sill side beam reinforcement 3 are pre-welded on the sill side beam outer panel 4. The reserved via 401 is connected by spot welding. The connection strength between the upper and lower car bodies is ensured by increasing the overlap area and optimizing the connection method, which greatly improves the connection strength of the upper and lower car bodies. At the same time, the brittle fracture characteristics of carbon dioxide shielded welding are avoided, and the upper and lower ends of the B-pillar are effectively connected by spot welding and retractor bolts, which greatly enhances the connection efficiency and ensures that the lower end of the B-pillar will not break when the vehicle has a side collision. This effectively solves the problem of insufficient connection of the lower part of the B-pillar and easy collision fracture in side collision and pillar collision verification caused by the single connection form of the B-pillar in the side collision.
[0064] According to an embodiment of the present application, on the other hand, a vehicle body assembly is provided, which includes: a vehicle body pillar and the above-mentioned vehicle body pillar connecting structure, the vehicle body pillar includes a pillar inner panel 1; the vehicle body pillar connecting structure is assembled and connected to the pillar inner panel 1.
[0065] According to an embodiment of the present application, in yet another aspect, a vehicle is provided, which includes: the above-mentioned vehicle body pillar connection structure, or the above-mentioned vehicle body assembly.
[0066] It should be noted that the vehicle in this application may refer to a large car, a small car, a special-purpose car, etc. For example, according to the vehicle model, the vehicle in this application may be a sedan model, an off-road vehicle model, a multi-purpose vehicle (MPV) model or other models. Generally, a vehicle is provided with wheels, a power source, and a transmission system arranged between the wheels and the power source. The transmission system can transmit the power provided by the power source to the wheels, so that the wheels rotate, thereby driving the vehicle to travel.
[0067] It should be noted that in the embodiments of the present application, the type of the power source of the vehicle is not limited. For example, for a fuel vehicle, the power source may refer to a fuel engine such as a gasoline engine or a diesel engine; for an electric vehicle, the power source may refer to an electric motor; for a hybrid vehicle, the power source may refer to an engine or an electric motor; for a vehicle powered by other means, the power source may refer to a device that generates power.
[0068] The serial numbers of the embodiments of the present application are only for description and do not represent the advantages and disadvantages of the embodiments. The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.
Claims
1. A vehicle body pillar connection structure, used for connecting a vehicle body pillar, the vehicle body pillar comprising a pillar inner plate (1), characterized in that: The vehicle body pillar connection structure comprises: A threshold side beam inner plate (2) fixed on the inner side of the column inner plate (1); A sill side beam reinforcement (3) is fixed to the inner side of the sill side beam inner plate (2), and the upper part of the sill side beam reinforcement (3) extends upward to the upper part of the pillar inner plate (1) and is connected to the pillar inner plate (1).
2. The vehicle body pillar connection structure according to claim 1, characterized in that: The sill side beam inner plate (2) has a matching portion corresponding to the lower portion of the sill side beam reinforcement (3), the lower portion of the pillar inner plate (1) extends downward to the matching portion, and the lower portion of the pillar inner plate (1), the matching portion of the sill side beam inner plate (2) and the lower portion of the sill side beam reinforcement (3) are connected.
3. The vehicle body pillar connection structure according to claim 2, characterized in that: The lower portion of the pillar inner plate (1), the matching portion of the sill side beam inner plate (2) and the lower portion of the sill side beam reinforcement (3) are overlapped and welded.
4. The vehicle body pillar connection structure according to claim 2 or 3, characterized in that: The vehicle body pillar connection structure also includes a sill side beam outer plate (4), the sill side beam outer plate (4) is fixed to the outer side of the pillar inner plate (1), and the upper part of the sill side beam outer plate (4), the pillar inner plate (1) and the upper part of the sill side beam inner plate (2) are connected.
5. The vehicle body pillar connection structure according to claim 4, characterized in that: The upper portion of the threshold side beam outer plate (4), the pillar inner plate (1) and the upper portion of the threshold side beam inner plate (2) are overlapped and welded.
6. The vehicle body pillar connection structure according to claim 4, characterized in that: The threshold side beam reinforcement (3) has an avoidance hole (301) for avoiding the connection between the upper part of the threshold side beam outer plate (4), the pillar inner plate (1) and the upper part of the threshold side beam inner plate (2).
7. The vehicle body pillar connection structure according to claim 4, characterized in that: A through hole (401) is provided on the sill side beam outer plate (4) at a connection point corresponding to the lower part of the sill side beam reinforcement (3), the matching part of the sill side beam inner plate (2) and the lower part of the pillar inner plate (1), and the through hole (401) is used for allowing a connecting component to pass through.
8. The vehicle body pillar connection structure according to any one of claims 1 to 3, characterized in that: The upper part of the pillar inner plate (1) and the upper part of the door sill side beam reinforcement (3) are provided with connection holes (101), and the connection holes (101) are used for connection with retractor bolts.
9. A vehicle body assembly, characterized in that: include: A vehicle body pillar, comprising a pillar inner plate (1); The vehicle body pillar connection structure according to any one of claims 1 to 8 is assembled and connected to the pillar inner panel (1).
10. A vehicle, characterized in that: include: The vehicle body pillar connection structure according to any one of claims 1 to 8, or the vehicle body assembly according to claim 9.