Threshold structure and vehicle

Abstract

The utility model discloses a doorsill structure and a vehicle, the doorsill structure comprises a doorsill beam and a cooling liquid flow channel, and the cooling liquid flow channel penetrates through the doorsill beam along the length direction of the doorsill beam; the doorsill beam comprises a middle cavity, the cooling liquid flow channel is located in the middle cavity and connected with the middle cavity through a reinforcing rib, the doorsill beam further comprises a first force transmission transverse rib and a second force transmission transverse rib, and the first force transmission transverse rib and the second force transmission transverse rib are located on the two sides, in the width direction of the doorsill beam, of the middle cavity respectively. In the embodiment of the utility model, the cooling liquid flows through the cooling liquid flow channel in the doorsill beam, and the cooling liquid flow channel can replace a motor cooling water pipe in the prior art, so that the motor cooling water pipe does not need to be arranged, the cost is saved, and the problems that the motor cooling water pipe is difficult to assemble and long in assembly time consumption are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a door sill structure and a vehicle. Background Art

[0002] There are more pipelines in new energy vehicles than in traditional fuel vehicles, and the diameter of pipelines in new energy vehicles is larger. At present, the material of the motor cooling water pipe in new energy vehicles is nylon, and the motor cooling water pipe is assembled in the cavity of the door sill together with the rubber sleeve.

[0003] However, the motor cooling water pipe is difficult to assemble and takes a long time to assemble. In addition, since there is a matching gap between the rubber sleeve and the door sill, there is a risk of abnormal noise inside the door sill. Utility Model Content

[0004] The utility model provides a door sill structure and a vehicle, aiming to at least solve the technical problems in the prior art that the motor cooling water pipe is difficult to assemble and takes a long time to assemble.

[0005] In a first aspect, an embodiment of the utility model provides a threshold structure, including a threshold beam and a coolant flow channel, wherein the coolant flow channel penetrates the threshold beam along the length direction of the threshold beam;

[0006] The threshold beam includes an intermediate cavity, the coolant flow channel is located in the intermediate cavity and is connected to the intermediate cavity through reinforcing ribs, the threshold beam also includes a first force transmission transverse rib and a second force transmission transverse rib, the first force transmission transverse rib and the second force transmission transverse rib are respectively located on both sides of the intermediate cavity along the width direction of the threshold beam.

[0007] Optionally, the coolant flow channel is connected to the intermediate cavity through at least two of the reinforcing ribs, at least one of the reinforcing ribs is located between the first force transmission transverse rib and the coolant flow channel, and at least one of the reinforcing ribs is located between the second force transmission transverse rib and the coolant flow channel.

[0008] Optionally, the width direction of the first force-transmitting transverse reinforcement is parallel to the width direction of the door sill beam, and the second force-transmitting transverse reinforcement is arranged at an angle to the first force-transmitting transverse reinforcement.

[0009] Optionally, the wall thickness of the coolant flow channel is greater than or equal to 2 mm and less than or equal to 3 mm.

[0010] Optionally, the thickness of the reinforcing rib is greater than or equal to 2 mm and less than or equal to 3 mm.

[0011] Optionally, the threshold beam includes a first plate portion, the first plate portion is located on the upper side of the first force-transmitting transverse rib, and the first plate portion is used to overlap with the seat crossbeam.

[0012] Optionally, the coolant flow channel is connected to the intermediate cavity through four reinforcing ribs, and the four reinforcing ribs are respectively located on both sides of the coolant flow channel along the width direction of the door sill beam;

[0013] An inner cavity is formed between two reinforcing ribs located on the same side of the coolant flow channel, and the cross-sectional area of ​​the inner cavity is smaller than the cross-sectional area of ​​the coolant flow channel.

[0014] Optionally, both ends of the door sill beam are welded with pipe joints, and the positions of the pipe joints correspond to the positions of the coolant flow channels.

[0015] Optionally, the material of the pipe joint is the same as that of the door sill beam.

[0016] In a second aspect, an embodiment of the utility model provides a vehicle, comprising any of the above-mentioned door sill structures.

[0017] In the embodiment of the utility model, the coolant is circulated through the coolant flow channel in the door sill beam, and the coolant flow channel can replace the motor cooling water pipe in the prior art, so there is no need to set up the motor cooling water pipe, saving costs and solving the problem of difficult and time-consuming assembly of the motor cooling water pipe. In addition, since there is no need to set up the motor cooling water pipe, there is no need to set up a rubber sleeve, thereby avoiding the risk of abnormal noise caused by the matching gap between the rubber sleeve and the door sill. In addition, when the side column collides, the second force transmission transverse rib, the reinforcing rib, the coolant flow channel and the first force transmission transverse rib form a force transmission path with good force transmission performance and conducive to energy absorption, which can effectively reduce the warping of the seat beam and the deformation of the floor when the side column collides, improve the side column collision strength that can be sustained, and reduce the degree of deformation of the battery after being squeezed.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of a threshold structure in the prior art;

[0020] Figure 2 A schematic cross-sectional view of a threshold structure provided by an embodiment of the utility model;

[0021] Figure 3 A three-dimensional schematic diagram of a threshold structure provided by an embodiment of the utility model;

[0022] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0023] Figure 5 for Figure 4 Schematic cross-sectional view at the middle BB.

[0024] Reference numerals:

[0025] 1- threshold, 2- motor cooling water pipe, 3- rubber sleeve, 4- fitting clearance;

[0026] 10-sill beam, 11-coolant flow channel, 12-middle cavity, 121-upper cavity, 122-inner cavity, 123-lower cavity, 13-reinforcement rib, 14-first force-transmitting transverse rib, 15-second force-transmitting transverse rib, 16-first plate, 17-first mounting plate, 18-second mounting plate, 20-pipe joint, 30-coolant water pipe, 40-seat crossbeam, 50-floor, 60-welding area. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0028] Reference Figure 1 At present, the motor cooling water pipe 2 in new energy vehicles is made of nylon, and the motor cooling water pipe 2 is assembled together with the rubber sleeve 3 in the cavity of the door sill 1. However, the motor cooling water pipe 2 is difficult to assemble and takes a long time to assemble. In addition, since a matching gap 4 is designed between the rubber sleeve 3 and the door sill 1, there is a risk of abnormal noise inside the door sill. The value of the matching gap 4 is usually 3 mm. In order to solve the above problems, the embodiment of the utility model provides a door sill structure and a vehicle.

[0029] First, refer to Figure 2 The embodiment of the utility model discloses a threshold structure, including a threshold beam 10 and a coolant flow channel 11, the coolant flow channel 11 penetrates the threshold beam 10 along the length direction of the threshold beam 10, and the coolant flow channel 11 is used for circulating the coolant; an intermediate cavity 12 is opened in the threshold beam 10 along its length direction, the coolant flow channel 11 is located in the intermediate cavity 12 and is connected to the intermediate cavity 12 through a reinforcing rib 13, the threshold beam 10 also includes a first force transmission transverse rib 14 and a second force transmission transverse rib 15, the first force transmission transverse rib 14 and the second force transmission transverse rib 15 are respectively located on both sides of the intermediate cavity 12 along the width direction of the threshold beam 10.

[0030] Specifically, the cross-section of the coolant flow channel 11 may be circular, and the cross-section of the coolant flow channel 11 is also a cross-section perpendicular to the axis of the coolant flow channel 11. Figure 3 The width direction of the threshold beam 10 can be referred to Figure 2 The direction is shown by arrow C. The threshold beam 10 is used to be connected with the seat cross beam 40 and the floor 50.

[0031] The wall thickness of the coolant flow channel 11 can be set according to actual needs, for example, the wall thickness of the coolant flow channel 11 can be 2mm-3mm. The number of reinforcing ribs 13 can be set according to actual needs, for example, the number of reinforcing ribs 13 can be two, three, four, etc. The thickness of the reinforcing rib 13 can be set according to actual needs, for example, the thickness of the reinforcing rib 13 can be 2mm-3mm.

[0032] In the embodiment of the utility model, the coolant is circulated through the coolant channel 11 in the door sill beam 10. The coolant channel 11 can replace the motor cooling water pipe 2 in the prior art, so there is no need to set the motor cooling water pipe 2, which saves costs and solves the problem that the motor cooling water pipe 2 is difficult to assemble and takes a long time to assemble. In addition, since there is no need to set the motor cooling water pipe 2, there is no need to set the rubber sleeve 3, thereby avoiding the risk of abnormal noise caused by the matching gap 4 between the rubber sleeve 3 and the door sill 1. In addition, when the side column collides, the second force transmission transverse rib 15, the reinforcing rib 13, the coolant channel 11 and the first force transmission transverse rib 14 form a force transmission path, which has good force transmission performance and is conducive to energy absorption. It can effectively reduce the warping of the seat beam 40 and the deformation of the floor 50 when the side column collides, improve the side column collision strength that can be tolerated, and reduce the degree of deformation of the battery after being squeezed.

[0033] Reference Figure 2 The coolant flow channel 11 is connected to the middle cavity 12 through at least two reinforcing ribs 13, at least one reinforcing rib 13 is located between the first force transmission transverse rib 14 and the coolant flow channel 11, and at least one reinforcing rib 13 is located between the second force transmission transverse rib 15 and the coolant flow channel 11. Through this arrangement, the force transmission performance is further improved.

[0034] When the side column collides, the second force transmission transverse rib 15 transmits force to the coolant flow channel 11 through at least one reinforcing rib 13 located between the second force transmission transverse rib 15 and the coolant flow channel 11, and the coolant flow channel 11 transmits force to the first force transmission transverse rib 14 through at least one reinforcing rib 13 located between the first force transmission transverse rib 14 and the coolant flow channel 11.

[0035] Reference Figure 2The width direction of the first force transmission transverse rib 14 is parallel to the width direction of the door sill beam 10. The second force transmission transverse rib 15 is arranged at an angle to the first force transmission transverse rib 14, that is, the second force transmission transverse rib 15 is arranged obliquely to further improve the force transmission performance.

[0036] The wall thickness of the coolant flow channel 11 is greater than or equal to 2 mm and less than or equal to 3 mm.

[0037] Specifically, the wall thickness of the coolant flow channel 11 can be 2.1 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3 mm, etc. The wall thickness of the coolant flow channel 11 is preferably 2.5 mm. When the wall thickness of the coolant flow channel 11 is within the above range, the strength of the coolant flow channel 11 can be ensured, and the coolant flow channel 11 is not easily damaged.

[0038] The thickness of the reinforcing rib 13 is greater than or equal to 2 mm and less than or equal to 3 mm.

[0039] Specifically, the thickness of the reinforcing rib 13 can be 2.2 mm, 2.4 mm, 2.5 mm, 2.7 mm, 3 mm, etc. The thickness of the reinforcing rib 13 is preferably 2.5 mm. When the thickness of the reinforcing rib 13 is within the above range, the strength of the reinforcing rib 13 can be ensured.

[0040] Reference Figure 2 The threshold beam 10 includes a first plate portion 16 , which is located on the upper side of the first force-transmitting transverse rib 14 , and is used for overlapping with the seat cross beam 40 .

[0041] Specifically, the first plate portion 16 is located at the upper left portion of the door sill beam 10. The door sill beam 10 further includes a first mounting plate 17 and a second mounting plate 18, wherein the first mounting plate 17 is used to be connected to the floor 50, and the second mounting plate 18 is used to be connected to the side panel. When the side column hits, the collision force is transmitted to the seat cross beam 40 after passing through the second force transmission rib 15, the reinforcing rib 13, the coolant flow channel 11 and the first force transmission rib 14 in the door sill beam 10 and absorbing the force and energy, thereby preventing the seat cross beam 40 from warping when the side column hits.

[0042] Reference Figure 2 The coolant channel 11 is connected to the middle cavity 12 through four reinforcing ribs 13, and the four reinforcing ribs 13 are respectively located on both sides of the coolant channel 11 along the width direction of the door sill beam 10; an inner cavity 122 is formed between the two reinforcing ribs 13 located on the same side of the coolant channel 11, and the cross-sectional area of ​​the inner cavity 122 is smaller than the cross-sectional area of ​​the coolant channel 11.

[0043] Specifically, the middle cavity 12 penetrates the threshold beam 10 along the length direction of the threshold beam 10. The middle cavity 12 also includes an upper cavity 121 and a lower cavity 123. The cross-sectional area of ​​the upper cavity 121 is larger than the cross-sectional area of ​​the coolant flow channel 11, and the cross-sectional area of ​​the lower cavity 123 is larger than the cross-sectional area of ​​the coolant flow channel 11. The threshold beam 10 includes two inner cavities 122 in total. The inner cavity 122 has an energy absorption effect, and the energy absorption effect is improved by the provision of the two inner cavities 122.

[0044] Reference Figures 3 to 5 Both ends of the door sill beam 10 are welded with pipe joints 20 , and the position of the pipe joints 20 corresponds to the position of the coolant flow channel 11 .

[0045] Specifically, the threshold beam 10 includes two end faces arranged opposite to each other along the length direction of the threshold beam 10, and two pipe joints 20 are respectively welded to the two end faces, and the positions of the two pipe joints 20 correspond to the positions of the coolant flow channel 11. The two pipe joints 20 are respectively used to connect two coolant pipes 30. The coolant pipe 30 at one end passes the coolant into the coolant flow channel 11 through the pipe joint 20, and the coolant in the coolant flow channel 11 flows out through the pipe joint 20 and the coolant pipe 30 at the other end.

[0046] The sill beam 10 and the pipe joint 20 may be welded by MIG welding (Metal Inert-Gas Welding) to ensure the airtightness of the weld between the sill beam 10 and the pipe joint 20. Figure 5 The welding area 60 is shown in FIG. When the threshold beam 10 and the pipe joint 20 are welded, the connection performance of the two is good and it is easy to ensure air tightness.

[0047] The threshold beam 10 and the two pipe joints 20 may be welded in advance before subsequent final assembly. In this case, the threshold beam 10 and the pipe joints 20 do not need to be welded at the final assembly site, thereby reducing the number of assembly personnel at the final assembly site and lowering the labor cost.

[0048] The material of the pipe joint 20 is the same as that of the threshold beam 10. Specifically, the material of the threshold beam 10 may be aluminum alloy, and in this case, the material of the pipe joint 20 is also aluminum alloy. By setting the material of the pipe joint 20 to be the same as that of the threshold beam 10, the weldability of the two is improved, thereby ensuring the welding quality.

[0049] The preparation process of the above threshold structure can be: first prepare the threshold beam 10, and then weld the threshold beam 10 to the two pipe joints 20 to form a threshold structure. After the preparation of the threshold structure is completed, a pressure holding test is required. The process of the pressure holding test can be: the pipe joint 20 at one end is sealed with a plug, and the pipe joint 20 at the other end is connected to the airtightness detection equipment; then, compressed air with a set pressure is passed into the coolant flow channel 11, and the pressure is maintained for a set time; after that, the leakage amount is recorded, and it is determined whether the leakage amount is less than or equal to the set leakage amount. If the leakage amount is less than or equal to the set leakage amount, it means that the test is qualified. Among them, the set pressure can be 240kPa-260kPa, the set time can be three minutes, and the set leakage amount can be 5mL / min.

[0050] In a second aspect, the embodiment of the utility model further discloses a vehicle, comprising any of the above-mentioned threshold structures. Since the vehicle comprises the above-mentioned threshold structure, it also has the beneficial effects of the above-mentioned threshold structure, which will not be described in detail here.

[0051] The vehicle further includes a coolant water pipe 30, a seat cross beam 40, a floor 50 and a side panel. The sill structure includes a sill beam 10 and a pipe joint 20, and the pipe joint 20 is connected to the coolant water pipe 30. The sill beam 10 includes a first plate portion 16, and the first plate portion 16 is connected to the seat cross beam 40. The sill beam 10 also includes a first mounting plate 17 and a second mounting plate 18, and the first mounting plate 17 is connected to the floor 50, and the second mounting plate 18 is connected to the side panel.

[0052] It should be noted that, in this article, the terms "include", "comprises" or any other variations 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 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 existence of other identical elements in the process, method, article or device including the element.

[0053] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, which all fall within the protection of the utility model.

Claims

1. A threshold structure, characterized in that: It comprises a threshold beam and a coolant flow channel, wherein the coolant flow channel penetrates the threshold beam along the length direction of the threshold beam; The threshold beam includes an intermediate cavity, the coolant flow channel is located in the intermediate cavity and is connected to the intermediate cavity through reinforcing ribs, the threshold beam also includes a first force transmission transverse rib and a second force transmission transverse rib, the first force transmission transverse rib and the second force transmission transverse rib are respectively located on both sides of the intermediate cavity along the width direction of the threshold beam.

2. The threshold structure according to claim 1, characterized in that: The coolant flow channel is connected to the intermediate cavity through at least two of the reinforcing ribs, at least one of the reinforcing ribs is located between the first force transmission transverse rib and the coolant flow channel, and at least one of the reinforcing ribs is located between the second force transmission transverse rib and the coolant flow channel.

3. The threshold structure according to claim 1 or 2, characterized in that: The width direction of the first force-transmitting transverse reinforcement is parallel to the width direction of the door sill beam, and the second force-transmitting transverse reinforcement is arranged at an angle to the first force-transmitting transverse reinforcement.

4. The threshold structure according to claim 1, characterized in that: The wall thickness of the coolant flow channel is greater than or equal to 2 mm and less than or equal to 3 mm.

5. The threshold structure according to claim 1, characterized in that: The thickness of the reinforcing rib is greater than or equal to 2 mm and less than or equal to 3 mm.

6. The threshold structure according to claim 1, characterized in that: The threshold beam comprises a first plate portion, the first plate portion is located on the upper side of the first force transmission transverse rib, and the first plate portion is used for overlapping with the seat cross beam.

7. The threshold structure according to claim 2, characterized in that: The coolant flow channel is connected to the middle cavity through four reinforcing ribs, and the four reinforcing ribs are respectively located on both sides of the coolant flow channel along the width direction of the door sill beam; An inner cavity is formed between two reinforcing ribs located on the same side of the coolant flow channel, and the cross-sectional area of ​​the inner cavity is smaller than the cross-sectional area of ​​the coolant flow channel.

8. The threshold structure according to claim 1, characterized in that: Both ends of the door sill beam are welded with pipe joints, and the positions of the pipe joints correspond to the positions of the coolant flow channels.

9. The door sill structure according to claim 8, characterized in that: The material of the pipe joint is the same as that of the door sill beam.

10. A vehicle, characterized in that: The invention comprises the threshold structure according to any one of claims 1 to 9.

Images