Sleeve, battery box and electric equipment

Abstract

The utility model provides a sleeve, battery box and electric equipment relates to battery technical field, the sleeve includes the barrel, the side part of barrel is equipped with the first opening, and the first opening passes through the side part of barrel along the axial direction of barrel, the side part of barrel is also equipped with the bulge, and the bulge is equipped with the second opening. The maximum size of the protrusion is smaller than or equal to the hole diameter of a mounting hole of a workpiece when the cylinder body is in a tightened state, and the maximum size of the protrusion is larger than the hole diameter of the mounting hole when the cylinder body is in an initial state. According to the utility model, the installation convenience of the sleeve can be improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and more specifically, to a sleeve, a battery box, and an electrical device. Background Technology

[0002] In order to install the battery box onto electrical equipment such as a vehicle, it is often necessary to install a sleeve on the frame of the battery box, and the sleeve is connected to the vehicle body by bolts, thereby fixing the battery box and the vehicle body to each other.

[0003] In related technologies, sleeves are usually installed at the mounting holes on the frame by fixing methods such as welding, but the welding process is relatively troublesome and will make the sleeve installation inconvenient. Utility Model Content

[0004] The problem this invention solves is: how to make sleeve installation more convenient.

[0005] To solve the above problems, this utility model provides a sleeve, a battery box, and an electrical device.

[0006] In a first aspect, the present invention provides a sleeve, including a cylindrical body, wherein a first opening is provided on the side of the cylindrical body and the first opening extends through the side of the cylindrical body along the axial direction of the cylindrical body, and a protrusion is also provided on the side of the cylindrical body, wherein the maximum size of the protrusion when the cylindrical body is in a tightened state is less than or equal to the diameter of the mounting hole of the workpiece, and the maximum size of the protrusion when the cylindrical body is in an initial state is greater than the diameter of the mounting hole.

[0007] Optionally, the outer surface of the protrusion is an arc surface that convexes outward along the radial direction of the cylinder.

[0008] Optionally, the outer wall surface of the cylinder includes an upper wall surface located above the protrusion, and a first chamfer surface is provided between the upper wall surface and the outer surface of the protrusion.

[0009] Optionally, the outer wall surface of the cylinder includes a lower wall surface located below the protrusion, and a second chamfer surface is provided between the lower wall surface and the outer surface of the protrusion.

[0010] Optionally, the cross-section of the protrusion perpendicular to the axial direction of the cylinder is an annular shape with a notch.

[0011] Optionally, the upper end of the cylinder is provided with a shoulder that protrudes radially therefrom, and a second opening communicating with the first opening is provided on the shoulder, the second opening penetrating the shoulder radially along the cylinder.

[0012] Optionally, the maximum size of the protrusion when the cylinder is in a tightened state is less than or equal to the diameter of the mounting hole, and the maximum size of the protrusion when the cylinder is in an initial state is greater than the diameter of the mounting hole.

[0013] Secondly, this utility model provides a battery box, including a workpiece and a sleeve as described above. The workpiece is the outer frame plate of the battery box, and the outer frame plate has a mounting hole. The sleeve is inserted into the mounting hole.

[0014] Optionally, the protrusion of the sleeve is used to enter the inner side of the outer frame plate when the sleeve body is inserted into the mounting hole in a tightened state, and to limit the engagement with the inner side of the outer frame plate after the sleeve body returns to the initial state.

[0015] Optionally, the battery box further includes an inner frame plate disposed opposite to the outer frame plate, the sleeve extending between the outer frame plate and the inner frame plate, and the protrusion of the sleeve abutting against the outer frame plate, and one end of the sleeve abutting against the inner frame plate.

[0016] Thirdly, this utility model provides an electrical device, including the battery box as described above.

[0017] The beneficial effects of this sleeve are as follows: By providing a first opening on the side of the sleeve, and the first opening penetrating the side of the sleeve along the axial direction of the sleeve, the sleeve can switch between a tightened state with a smaller radial dimension and an initial state with a larger radial dimension. Simultaneously, by providing a protrusion on the side of the sleeve, where the maximum size of the protrusion in the tightened state is less than or equal to the diameter of the workpiece's mounting hole, and the maximum size of the protrusion in the initial state is greater than the diameter of the mounting hole, it can be ensured that when the sleeve is inserted into the mounting hole in the tightened state, the protrusion can simultaneously pass through the mounting hole, and the sleeve can be restored to its original position. Once in its initial state, the protrusion cannot dislodge through the mounting hole. Therefore, during sleeve installation, a clamping tool can be used to clamp the sleeve to tighten it. Then, insert it into the mounting hole from one side of the workpiece to expose the other side of the workpiece. At this time, the protrusion can also enter the other side of the workpiece. Then, release the sleeve to return it to its initial state, so that the protrusion and the other side of the workpiece mutually limit each other, thereby preventing the sleeve from dislodging from the mounting hole. Finally, the sleeve is installed at the mounting hole, avoiding the use of welding for fixing, which is more troublesome, and improving the ease of sleeve installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the sleeve in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the sleeve after deformation and tightening and before it is inserted into the mounting hole according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the sleeve being installed in the mounting hole according to an embodiment of the present invention;

[0021] Figure 4 This is a side view of the sleeve according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the battery box structure according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Exploded view of the battery box;

[0024] Figure 7 for Figure 5 Enlarged schematic diagram of part A of the battery box.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Cylinder body; 11. Upper wall surface; 12. Lower wall surface; 2. First opening; 3. Protrusion; 31. Outer surface; 32. First chamfered surface; 33. Second chamfered surface; 4. Shoulder; 41. Second opening; 5. Frame; 51. Outer frame plate; 511. Mounting hole; 512. Inner side; 52. Inner frame plate; 53. Inner cavity; 6. Shell; 7. Sleeve. Detailed Implementation

[0027] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Although some embodiments of this utility model are shown in the drawings, it should be understood that this utility model can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this utility model. It should be understood that the drawings and embodiments of this utility model are for illustrative purposes only and are not intended to limit the scope of protection of this utility model.

[0028] In the attached diagram, the Z-axis represents the vertical direction, i.e., up and down, with the positive direction of the Z-axis representing up and the negative direction representing down. The X-axis represents the horizontal direction and is designated as the front and back position, with the positive direction of the X-axis representing the front and the negative direction representing the back. The Y-axis represents the left and right position, with the positive direction of the Y-axis representing the left and the negative direction representing the right. It should be noted that the aforementioned representations of the Z, Y, and X axes are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments"; and the term "optionally" means "optional embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first," "second," etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0030] It should be noted that the terms "one" and "multiple" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] In related technologies, the sleeve is often cylindrical. After the sleeve is inserted into the mounting hole of the frame, it may detach from the mounting hole. Therefore, it is necessary to further weld the sleeve to the frame to fix the sleeve at the mounting hole. However, the welding process often requires continuous monitoring of welding parameters and adjustment according to the actual situation to ensure the quality of the weld. This makes the welding process more troublesome and causes inconvenience in installing the sleeve.

[0032] To address the problems existing in the aforementioned related technologies, this utility model provides a sleeve, a battery box, and an electrical device to make sleeve installation more convenient. Detailed descriptions are provided below with reference to specific embodiments.

[0033] like Figures 1 to 3 As shown in the figure, a sleeve provided in this embodiment of the utility model includes a cylindrical body 1. The side of the cylindrical body 1 is provided with a first opening 2, and the first opening 2 penetrates the side of the cylindrical body 1 along the axial direction of the cylindrical body 1. The side of the cylindrical body 1 is also provided with a protrusion 3. The maximum size of the protrusion 3 when the cylindrical body 1 is in a tightened state is less than or equal to the diameter of the mounting hole 511 of the workpiece. The maximum size of the protrusion 3 when the cylindrical body 1 is in an initial state is greater than the diameter of the mounting hole 511.

[0034] It is understandable that because the cylinder 1 has a first opening 2 on its side, the first opening 2 can close when the cylinder 1 is radially compressed, so that the entire cylinder 1 can deform and tighten to enter a tightened state. When the compression ends, the first opening 2 can open again, so that the entire cylinder 1 can return from the tightened state to the initial state when it is not deformed. In the initial state, the radial dimension of the cylinder 1 is the outer diameter of the cylinder 1 when it is not deformed. In the tightened state, the radial dimension of the cylinder 1 will be smaller than the outer diameter of the cylinder 1 when it is not deformed.

[0035] It should be noted that the maximum dimension of protrusion 3 when cylinder 1 is in the tightened state refers to the maximum radial dimension of protrusion 3 along cylinder 1 when cylinder 1 is in the tightened state. (See [reference needed]). Figure 2 , Figure 2 When the middle cylinder 1 is in its tightened state, 'a' represents the maximum dimension of protrusion 3. Similarly, the maximum dimension of protrusion 3 when cylinder 1 is in its initial state refers to the maximum radial dimension of protrusion 3 along cylinder 1 when cylinder 1 is in its initial state. See also Figure 2 b is the diameter of mounting hole 511.

[0036] It should be noted that the workpiece can be any component of the battery box, without any restrictions. For example, it can be the outer frame plate 51 of the battery box. When installing the sleeve, the sleeve can be inserted into the mounting hole 511 from one side of the workpiece and its end can extend to the other side of the workpiece. For example, for the outer frame plate 51, the sleeve can be inserted into the mounting hole 511 from the outside of the outer frame plate 51 and its end can extend to the inside of the outer frame plate 51.

[0037] In this embodiment, by providing a first opening 2 on the side of the cylinder 1, and the first opening 2 penetrating the side of the cylinder 1 along the axial direction of the cylinder 1, the cylinder 1 can switch between a tightened state with a smaller radial dimension and an initial state with a larger radial dimension. Simultaneously, by providing a protrusion 3 on the side of the cylinder 1, and the maximum size of the protrusion 3 when the cylinder 1 is in the tightened state being less than or equal to the diameter of the mounting hole 511 of the workpiece, and the maximum size of the protrusion 3 when the cylinder 1 is in the initial state being greater than the diameter of the mounting hole 511, it can be ensured that when the cylinder 1 is inserted into the mounting hole 511 in the tightened state, the protrusion 3 can simultaneously pass through the mounting hole 511, and the cylinder 1 can be restored to its original state. Once in the initial state, the protrusion 3 cannot be dislodged through the mounting hole 511. Thus, during the installation of the sleeve, the cylinder 1 can be clamped with a clamping tool to bring it into a tightened state. Then, it can be inserted into the mounting hole 511 from one side of the workpiece to expose the other side of the workpiece. At this time, the protrusion 3 can also enter the other side of the workpiece. Then, the cylinder 1 can be released to return it to the initial state, so that the protrusion 3 and the other side of the workpiece mutually limit each other, thereby preventing the cylinder 1 from dislodging from the mounting hole 511. Finally, the sleeve is installed at the mounting hole 511, avoiding the use of welding for fixing, which would make the welding process more troublesome, and improving the ease of installation of the sleeve.

[0038] Optionally, such as Figure 4 As shown, the outer surface 31 of the protrusion 3 is an arc surface that convexes outward along the radial direction of the cylinder 1.

[0039] It should be noted that the outer surface 31 of the protrusion 3 refers to the portion of the surface of the protrusion 3 that is opposite to the outer wall surface of the cylinder 1. Specifically, in Figure 3In the middle, the protrusion 3 can be annular, and the outer peripheral surface of the protrusion 3 is the outer surface 31 of the protrusion 3.

[0040] In this optional embodiment, by making the outer surface 31 of the protrusion 3 an arc surface that convexes outward along the radial direction of the cylinder 1, the process of inserting the sleeve into the mounting hole 511 can be made smoother, thereby reducing the difficulty of installing the sleeve.

[0041] Optionally, such as Figure 4 As shown, the outer wall of the cylinder 1 includes an upper wall surface 11 located on the upper side of the protrusion 3, and a first chamfered surface 32 is provided between the upper wall surface 11 and the outer surface 31 of the protrusion 3.

[0042] It should be noted that the first chamfered surface 32 is obtained by chamfering between the upper wall surface 11 and the outer surface 31 of the protrusion 3. The first chamfered surface 32 can be a bevel or an arc surface formed by chamfering, and there is no restriction here.

[0043] In this optional embodiment, by providing a first chamfered surface 32 between the upper wall surface 11 of the cylinder 1 and the outer surface 31 of the protrusion 3, a chamfered transition can be formed between the upper wall surface 11 and the outer surface 31 of the protrusion 3, so that the protrusion 3 can adapt to more workpieces of different thicknesses and mounting holes 511 of different diameters, thereby improving the versatility of the sleeve.

[0044] Optionally, such as Figure 4 As shown, the outer wall of the cylinder 1 includes a lower wall surface 12 located below the protrusion 3, and a second chamfered surface 33 is provided between the lower wall surface 12 and the outer surface 31 of the protrusion 3.

[0045] It should be noted that the second chamfered surface 33 is obtained by chamfering between the lower wall surface 12 and the outer surface 31 of the protrusion 3. The second chamfered surface 33 can be a bevel or an arc surface formed by chamfering, and there is no restriction here.

[0046] In this optional embodiment, by providing a second chamfered surface 33 between the lower wall surface 12 of the cylinder 1 and the outer surface 31 of the protrusion 3, the second chamfered surface 33 can serve as a guide surface, helping the sleeve to be more easily inserted into the mounting hole 511 during installation, thereby improving the smoothness of the sleeve insertion process.

[0047] Optionally, the cross-section of the protrusion 3 perpendicular to the axial direction of the cylinder 1 is an annular shape with a notch.

[0048] In this optional embodiment, by making the cross section of the protrusion 3 perpendicular to the axial direction of the cylinder 1 annular with a notch, that is, the protrusion 3 as a whole forms an annular structure, it is more conducive to improving the limiting effect.

[0049] Optionally, such as Figure 1 and 3As shown, the upper end of the cylinder 1 is provided with a shoulder 4 formed by a radial protrusion 3. A second opening 41 communicating with the first opening 2 is provided on the shoulder 4. The second opening 41 penetrates the shoulder 4 radially along the cylinder 1.

[0050] Specifically, the shoulder 4 can be an annular plate with an opening, and the annular plate can be arranged around the upper end of the cylinder 1.

[0051] In this optional embodiment, the shoulder 4 can be used to abut against the workpiece and is located on both sides of the workpiece along with the protrusion 3, so that the shoulder 4 and the protrusion 3 can jointly limit the workpiece to better fix the sleeve at the mounting hole 511. Furthermore, since the shoulder 4 has a second opening 41 that communicates with the first opening 2 and the second opening 41 passes through the shoulder 4 radially along the cylinder 1, the shoulder 4 can deform and tighten along with the cylinder 1 when it deforms and tightens, thus avoiding the situation where the shoulder 4 cannot deform, which would require the cylinder 1 to exert more force to complete the deformation and tightening, thereby increasing the difficulty of assembly.

[0052] like Figures 5 to 7 As shown in the figure, a battery box provided by this utility model includes a workpiece and a sleeve 7 as described above. The workpiece is the outer frame plate 51 of the battery box. The outer frame plate 51 has a mounting hole 511, and the sleeve 7 is inserted into the mounting hole 511.

[0053] Specifically, such as Figure 6 As shown, the battery box may include four side frames 5, which are connected sequentially to form a rectangular structure. Each side frame 5 may include an outer frame plate 51, and the aforementioned workpiece can be this outer frame plate 51. Of course, as... Figure 6 As shown, the battery box may also include a housing 6 disposed between the four sidewalls 5.

[0054] In this embodiment, since the battery box includes the sleeve 7 described above, it has all the beneficial effects brought by the sleeve 7 in all the above embodiments, which will not be repeated here.

[0055] Optionally, the protrusion 3 of the sleeve 7 is used to enter the inner side of the outer frame plate 51 when the sleeve 7 is inserted into the mounting hole 511 in a tightened state, and to limit the engagement with the inner side surface 512 of the outer frame plate 51 after the sleeve 7 returns to the initial state.

[0056] It should be noted that the outer frame panel 51 constitutes one of the side walls of the frame 5, and its inner side is the side facing the inside of the frame 5. Correspondingly, its inner side panel 512 is the side facing the inside of the frame 5.

[0057] In this optional embodiment, the above-mentioned settings can limit the sleeve 7 to be installed at the mounting hole 511, thereby fixing the sleeve 7 to the outer plate 51 of the frame and preventing it from loosening.

[0058] Optionally, such as Figure 2 and Figure 7 As shown, the battery box also includes an inner frame plate 52 disposed opposite to the outer frame plate 51. The cylindrical body 1 of the sleeve 7 extends between the outer frame plate 51 and the inner frame plate 52, and the protrusion 3 of the sleeve 7 abuts against the outer frame plate 51, and one end of the cylindrical body 1 abuts against the inner frame plate 52.

[0059] Specifically, refer to Figure 2 There can be multiple outer frame plates 51, and multiple outer frame plates 51 together enclose an inner cavity 53 extending along the length direction of the frame 5. The inner frame plate 52 can be set in the inner cavity 53. The inner cavity 53 can not only improve the strength of the frame 5, but also reduce the weight of the frame 5.

[0060] In this optional embodiment, by setting the inner frame plate 52, and having the protrusion 3 of the sleeve 7 abut against the outer frame plate 51, and one end of the cylinder 1 abut against the inner frame plate 52, that is, the sleeve 7 is simultaneously limited between the outer frame plate 51 and the inner frame plate 52, the installation stability of the sleeve 7 at the mounting hole 511 can be improved.

[0061] This utility model provides an electrical device, including the battery box as described above.

[0062] Specifically, the electrical equipment can be a vehicle, and the battery box can be connected to the vehicle body via bolts installed in sleeve 7.

[0063] In this embodiment, since the electrical device includes the battery box described above, it has all the beneficial effects brought by the battery boxes of all the above embodiments, which will not be repeated here.

[0064] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A sleeve, characterized in that, The device includes a cylindrical body (1), a first opening (2) on the side of the cylindrical body (1), and the first opening (2) extends through the side of the cylindrical body (1) along the axial direction of the cylindrical body (1). The side of the cylindrical body (1) is also provided with a protrusion (3). The maximum size of the protrusion (3) when the cylindrical body (1) is in a tightened state is less than or equal to the diameter of the mounting hole (511) of the workpiece. The maximum size of the protrusion (3) when the cylindrical body (1) is in an initial state is greater than the diameter of the mounting hole (511).

2. The sleeve according to claim 1, characterized in that, The outer surface (31) of the protrusion (3) is an arc surface that convexes outward along the radial direction of the cylinder (1).

3. The sleeve according to claim 2, characterized in that, The outer wall of the cylinder (1) includes an upper wall (11) located on the upper side of the protrusion (3), and a first chamfered surface (32) is provided between the upper wall (11) and the outer surface (31) of the protrusion (3).

4. The sleeve according to claim 2, characterized in that, The outer wall of the cylinder (1) includes a lower wall (12) located below the protrusion (3), and a second chamfer (33) is provided between the lower wall (12) and the outer surface (31) of the protrusion (3).

5. The sleeve according to claim 1, characterized in that, The cross section of the protrusion (3) perpendicular to the axial direction of the cylinder (1) is an annular shape with a notch.

6. The sleeve according to claim 1, characterized in that, The upper end of the cylinder (1) is provided with a shoulder (4) formed by a radial protrusion (3). A second opening (41) communicating with the first opening (2) is provided on the shoulder (4). The second opening (41) passes through the shoulder (4) radially along the cylinder (1).

7. A battery box, characterized in that, The device includes a workpiece and a sleeve (7) as described in any one of claims 1 to 6, wherein the workpiece is the outer frame plate (51) of the battery box, the outer frame plate (51) has a mounting hole (511), and the sleeve (7) is inserted into the mounting hole (511).

8. The battery box according to claim 7, characterized in that, The protrusion (3) of the sleeve (7) is used to enter the inner side of the outer frame plate (51) when the sleeve (7) is inserted into the mounting hole (511) in a tightened state, and to limit the engagement with the inner side (512) of the outer frame plate (51) after the sleeve (7) returns to the initial state.

9. The battery box according to claim 7, characterized in that, The battery box also includes an inner frame plate (52) disposed opposite to the outer frame plate (51). The cylindrical body (1) of the sleeve (7) extends between the outer frame plate (51) and the inner frame plate (52), and the protrusion (3) of the sleeve (7) abuts against the outer frame plate (51), and one end of the cylindrical body (1) abuts against the inner frame plate (52).

10. An electrical appliance, characterized in that, Includes the battery box as described in any one of claims 7 to 9.

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