Blind bolt plugging method for fuse box and fuse box

Abstract

The present invention relates to the technical field of fuse box processing, and in particular, to a method for plugging blind bolts into fuse boxes and a fuse box. The method includes obtaining the geometric center of the distribution area of ​​the locking piece based on the completion of positioning the fuse box on the plug-in device; dividing a plurality of first arrangement areas distributed around the geometric center on the reference plane based on the geometric center; obtaining the target number of blocking holes in each first arrangement area; determining the first target area; plugging blind bolts into some of the blocking holes in the first target area; determining the second target area; plugging blind bolts into some of the blocking holes in the second target area; re-determining the first target area in descending order of the target number, and returning to execute the step of plugging blind bolts into some of the blocking holes in the first target area, until all the blocking holes in the fuse box are plugged with blind bolts. This solves the problem of the locking piece on the positioning platform becoming loose due to long-term uneven force when the fuse box is plugged with a blind bolt.

Description

Technical Field

[0001] The present invention relates to the technical field of fuse box processing, and in particular to a blind bolt plugging method for a fuse box and a fuse box. Background Art

[0002] The structural design of the fuse box includes multiple plug-in holes. According to the needs of the circuit design, some of the plug-in holes are selected as electrical connection holes. In order to prevent the entry of dust, the remaining holes need to be blocked with blind bolts to form blocked holes. When the blind bolt is plugged into the fuse box, the fuse box is positioned on the positioning platform of the plug-in device. The positioning platform is driven by the drive unit to achieve lifting and rotation functions, thereby meeting the position and angle adjustment requirements during the blind bolt plug-in process. Since the positioning platform has multiple degrees of freedom, in order to ensure that the fuse box has a stable connection with the positioning platform during the plug-in process, multiple locking parts are usually provided to lock and position the positioning platform. Through the coordinated action of multiple locking parts, the positioning platform is kept in the appropriate position to ensure that the blind bolt can be accurately and stably inserted into the blocked hole.

[0003] However, since the force required to plug in the blind bolts is large, and there are many blind bolts, and they are irregularly distributed on the fuse box, that is, the number of blind bolts plugged in in different areas is different. This leads to differences in the duration of the force exerted on the positioning platform by the blind bolts in each area during the plugging process. In areas with densely blocked holes, there are more blind bolts, which causes the positioning platform to be subjected to a large plugging force in local areas for a long time. When multiple locking pieces are provided, the force borne by each locking piece is not uniform. Under the action of a large plugging force that lasts unevenly, it is difficult for the locking piece to form a consistent and stable locking effect on the positioning platform. As the number of locking pieces increases, this uneven force situation will become more obvious, and the positioning platform will be subjected to different forces at different positions for different durations, and the probability of loosening will also increase accordingly. The key point of the problem is that the blind bolts require a large force when plugged in, and the number is large and the distribution is uneven. This reduces the locking stability of the positioning platform by the multiple locking pieces under the condition of uneven force, which in turn causes the positioning platform to be easily loosened. Summary of the Invention

[0004] In order to solve the problem that a locking piece on a positioning platform becomes loose due to long-term uneven force when a blind bolt is inserted into a fuse box, the present invention provides a blind bolt insertion method for a fuse box and a fuse box.

[0005] In a first aspect, the present invention provides a method for inserting a blind bolt into a fuse box, the method comprising:

[0006] After the fuse box is positioned on the plug-in device, the geometric center of the distribution area of ​​the locking elements is obtained, and the first arrangement area of ​​the plug-in holes is obtained; the plug-in device includes a positioning assembly and a bolt assembly; the positioning assembly is used to position the fuse box; the bolt assembly is used to insert a blind bolt into the fuse box; the positioning assembly includes a positioning platform, a driving part, and a plurality of the locking elements; the positioning platform is detachably connected to the driving part via the plurality of the locking elements; a plurality of the plug-in holes are distributed on the plug-in surface of the fuse box; some of the plug-in holes are electrical connection holes, and others are blocking holes;

[0007] Based on the geometric center, a plurality of first arrangement areas distributed around the geometric center are divided on a reference plane; each first arrangement area has another first arrangement area symmetrically distributed about the geometric center; the reference plane is parallel to the positioning platform; the set of the plurality of first arrangement areas covers the area where the blocking hole positions are arranged;

[0008] Obtaining a target number of the blocked holes in each of the first arrangement areas;

[0009] Determine a first target area, where the first target area is the first arrangement area with the largest number of targets;

[0010] Inserting the blind plugs into some of the blocking holes in the first target area;

[0011] Determining a second target area, where the second target area is the first arrangement area that is symmetrically distributed with the first target area about the geometric center;

[0012] Inserting the blind plugs into some of the blocking holes in the second target area;

[0013] The first target area is re-determined in descending order of the target number, and the step of inserting the blind bolts into some of the blocking holes in the first target area is returned to execution until all the blocking holes in the fuse box are inserted with the blind bolts.

[0014] In some embodiments, inserting the blind plugs into the partially open blocked holes of the first target area includes:

[0015] A first preset ratio of the blocking holes in the first target area is connected with the blind bolts; the first preset ratio is less than 1; the first preset ratio is the ratio of the number of the connected blind bolts to the target number of the first target area.

[0016] In some embodiments, the first preset ratio is negatively correlated with the total number of the blocked holes of the fuse box.

[0017] In some embodiments, inserting the blind plugs into some of the blocking holes in the second target area includes:

[0018] The blind plugs are inserted into the blocking holes of a second preset ratio in the second target area; the second preset ratio is less than 1; and the second preset ratio is a ratio value of the target number in the second target area.

[0019] In some embodiments, the second preset ratio is negatively correlated with the total number of the blocked holes of the fuse box.

[0020] In some embodiments, before the step of inserting the blind plugs into the blocking holes in the second preset proportion of the second target area, the fuse box blind plug insertion method further includes:

[0021] The second preset ratio is determined based on the target number of the first target area and the target number of the second target area; wherein, if the target number of the second target area is smaller than the target number of the first target area, the second preset ratio is greater than the first preset ratio; if the target number of the second target area is greater than the target number of the first target area, the second preset ratio is less than the first preset ratio.

[0022] In some embodiments, the difference between the second preset ratio and the first preset ratio is less than 20%.

[0023] In some embodiments, the plurality of locking members are distributed in a ring shape; the geometric center is the center of the ring area formed by the distribution of the plurality of locking members.

[0024] In some embodiments, the plurality of first arrangement areas are evenly distributed fan-shaped areas.

[0025] In a second aspect, the present invention provides a fuse box, which is manufactured using the blind bolt plugging method for a fuse box according to any one of the above embodiments;

[0026] The fuse box includes a shell, an electrical component assembly and multiple blind bolts; the electrical component assembly is installed inside the shell; the shell has a plug-in surface; multiple plug-in holes are distributed on the plug-in surface; some of the plug-in holes are electrical connection holes, and other parts of the plug-in holes are blocking holes; the electrical connection holes are used to plug in wiring harnesses electrically connected to the electrical component assembly; the blind bolts correspond one-to-one with the blocking holes; the blind bolts are plugged into the corresponding blocking holes; and multiple blind bolts are arranged according to preset orientations.

[0027] In order to solve the problem that the locking piece on the positioning platform becomes loose due to long-term uneven force when the blind bolt is inserted into the fuse box, the present invention has the following advantages:

[0028] By obtaining the geometric center of the locking member distribution area and the first arrangement area of ​​the plug-in holes, a plurality of symmetrically distributed first arrangement areas are divided around the geometric center on the reference plane, so that the collection of the plurality of first arrangement areas covers the area where the blocking holes are arranged. After obtaining the target number of blocking holes in each first arrangement area, the first target area with the largest target number is first determined, and blind bolts are inserted into some of its blocking holes. Then, the second target area that is symmetrically distributed with respect to the geometric center of the first target area is determined, and blind bolts are inserted into some of its blocking holes. Then, the first target area is re-determined in descending order of the target number and blind bolts are inserted until all the blocking holes are inserted. Blind bolt insertion can be achieved for the blocking holes in each area in a specific order. Since each first arrangement area has symmetrically distributed areas, when inserting the blind bolts, the insertion operation of the symmetrical areas can make the impact force on the locking member on the positioning platform tend to be uniform. This can avoid concentrated force caused by frequent plugging near the same position, and ultimately solve the problem of uneven force and high probability of loosening of the locking parts caused by the large number and uneven distribution of blind bolt plugging, thereby extending the locking time of the locking parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram showing a flow chart of a blind bolt plugging method for a fuse box according to an embodiment;

[0030] Figure 2 A schematic structural diagram of a fuse box according to an embodiment is shown;

[0031] Figure 3 A schematic structural diagram of a positioning component according to an embodiment is shown.

[0032] Reference numerals: 10 fuse box; 11 housing; 12 plugging hole; 121 electrical connection hole; 122 blocking hole; 20 positioning assembly; 21 positioning platform; 22 locking piece. DETAILED DESCRIPTION

[0033] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the present disclosure, rather than to imply any limitation on the scope of the present disclosure.

[0034] As used herein, the term "including" and its variations are to be interpreted as open-ended terms meaning "including, but not limited to." The term "based on" is to be interpreted as "based, at least in part, on." The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment." The term "another embodiment" is to be interpreted as "at least one other embodiment." Terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "vertical," "horizontal," "transverse," and "longitudinal" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily intended to better describe the present application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationships. For example, the term "on" may, in certain circumstances, be used to indicate a dependency or connection relationship. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances. Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" are to be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise specified, "plurality" means two or more.

[0035] During the blind bolt insertion process of the fuse box 10, an insertion device is required. This insertion device includes a positioning assembly 20 and a bolting assembly. The positioning assembly 20 is used to position the fuse box 10 and includes a positioning platform 21, a drive unit, and multiple locking members 22. The positioning platform 21 is detachably connected to the drive unit via multiple locking members 22. The bolting assembly is used to insert the blind bolt into the fuse box 10. The plugging surface of the fuse box 10 is distributed with multiple plugging holes 12, some of which are blocking holes 122 that require plugging by inserting blind bolts. Due to the high force required to insert blind bolts and the large number of blind bolts, as well as the uneven distribution of these blind bolts on the plugging surface of the fuse box 10, the direction and magnitude of the force generated by the blind bolts at each blocking hole 122 when acting on the positioning platform 21 during the insertion process vary. The positioning platform 21 is connected to the drive unit via multiple locking members 22. When subjected to uneven forces, the multiple locking members 22 have difficulty in achieving a stable and consistent locking effect on the positioning platform 21. As the number of locking members 22 increases, the uneven force on the locking members 22 caused by the large blind bolt insertion force, large number and uneven distribution will become more obvious, thereby increasing the probability of the positioning platform 21 becoming loose.

[0036] Embodiment 1: In order to solve the above problem, this embodiment discloses a blind bolt plugging method for a fuse box 10 .

[0037] In this embodiment, if Figure 1 As shown, the blind bolt plugging method of the fuse box 10 includes:

[0038] Step S10: After the fuse box 10 is positioned on the plug-in device, the geometric center of the distribution area of ​​the locking member 22 is obtained, and the first arrangement area of ​​the plug-in holes 12 is obtained. The plug-in device includes a positioning assembly 20 and a bolt assembly. The positioning assembly 20 is used to position the fuse box 10. The bolt assembly is used to insert the blind bolt into the fuse box 10. The positioning assembly 20 includes a positioning platform 21, a driving unit, and a plurality of locking members 22. The positioning platform 21 is detachably connected to the driving unit via the plurality of locking members 22. A plurality of plug-in holes 12 are distributed on the plug-in surface of the fuse box 10. Some of the plug-in holes 12 are electrical connection holes 121, and others are blocking holes 122.

[0039] Step S20: Based on the geometric center, a plurality of first arrangement areas are divided on a reference plane and distributed around the geometric center; each first arrangement area has another first arrangement area symmetrically distributed about the geometric center; the reference plane is parallel to the positioning platform 21; the plurality of first arrangement areas collectively cover the area where the plugging holes 122 are arranged;

[0040] Step S30, obtaining the target number of blocked holes 122 in each first arrangement area;

[0041] Step S40, determining a first target area, where the first target area is a first arrangement area with the largest number of targets;

[0042] Step S50, inserting blind plugs into the partially blocked holes 122 in the first target area;

[0043] Step S60, determining a second target area, where the second target area is a first arrangement area symmetrically distributed with respect to the first target area about a geometric center;

[0044] Step S70, inserting blind plugs into the partially blocked holes 122 in the second target area;

[0045] In step S80, the first target area is re-determined in descending order of the target number, and the process returns to the step of inserting blind plugs into some of the blocked holes 122 in the first target area (i.e., repeating steps S50 to S80) until all the blocked holes 122 in the fuse box 10 are inserted with blind plugs.

[0046] like Figure 2 、 Figure 3 As shown, by first obtaining the relevant geometric center C and the first arrangement area, and then dividing the geometric center C into multiple first arrangement areas that are symmetrically distributed and cover the arrangement area of ​​the blocking hole 122 (the area is divided by dotted lines A and B, and the area between one end of the dotted line A and one end of the dotted line B is a first arrangement area), and then obtaining the target number, determining the first target area and the second target area, and inserting the blind bolts in sequence, so that when the blind bolts are inserted, the impact force on the locking parts 22 in each area on the positioning platform 21 tends to be uniform, thereby avoiding long-term concentrated force on the locking parts 22 near the same position, which causes them to loosen faster than other locking parts 22, and extends the locking time limit of the locking parts 22.

[0047] In some other embodiments, the blind bolt plugging method of the fuse box 10 further includes steps S501 to S503 before step S50;

[0048] Step S501, obtaining the remaining number of the plugged holes 122 in the first target area that are in an open state;

[0049] Step S502 : If the remaining number is greater than 0, then the step of inserting blind plugs into some of the blocking holes 122 in the first target area is executed, that is, step S50 is executed.

[0050] Step S503: If the remaining number is 0, the step of determining a second target area is executed, where the second target area is a first arrangement area symmetrically distributed with the first target area about the geometric center, that is, step S60 is executed.

[0051] In other embodiments, the blind bolt plugging method of the fuse box 10 further includes steps S701 to S703 in step S70;

[0052] Step S701, obtaining the remaining number of the plugged holes 122 in the second target area that are in an open state;

[0053] Step S702 : If the remaining number is greater than 0, the step of inserting blind plugs into some of the blocking holes 122 in the second target area is executed, that is, step S70 is executed.

[0054] In step S703, if the remaining number is 0, the first target area is redetermined in descending order of the target number, and the process returns to the step of inserting blind plugs into some of the blocked holes 122 in the first target area, until all the blocked holes 122 in the fuse box 10 are inserted with blind plugs, that is, step S80 is executed.

[0055] Furthermore, partially plugging blind bolts into the blocked holes 122 in the first target area, i.e., step S50, includes: step S51, plugging blind bolts into a first preset ratio of the blocked holes 122 in the first target area; the first preset ratio is less than 1; the first preset ratio is the ratio of the number of plugged blind bolts to the target number of the first target area. When executing step S50, step S51 can be replaced, so that blind bolts are plugged into the first target area according to the first preset ratio, and the ratio of blind bolts plugged each time in each first target area can be divided to determine the number of blind bolts plugged each time in the first target area.

[0056] Furthermore, the first preset ratio is negatively correlated with the total number of blocked holes 122 in the fuse box 10. The first preset ratio can be inversely correlated with the total number of blocked holes 122. The greater the total number of blocked holes 122, the smaller the first preset ratio, thereby reducing the number of blind bolts inserted each time within the first target area. This reduces the continuous impact force generated by inserting blind bolts within the corresponding area and reduces the probability of the locking member 22 loosening. In other words, when the total number of blocked holes 122 is large, more cycles of alternately inserting blind bolts are required in each first arrangement area to reduce the duration of the insertion force within each first arrangement area.

[0057] Furthermore, partially plugging the blocked holes 122 in the second target area with blind bolts, i.e., step S70, includes: step S71, plugging a second preset ratio of the blocked holes 122 in the second target area with blind bolts; the second preset ratio is less than 1; and the second preset ratio is a ratio of the target number in the second target area. When executing step S70, step S71 can be replaced, so that blind bolts can be plugged in the second target area according to the second preset ratio. The ratio of blind bolts plugged each time in each second target area can be divided, and the number of blind bolts plugged each time in the second target area can be determined.

[0058] Furthermore, the second preset ratio is negatively correlated with the total number of blocked holes 122 in the fuse box 10. The second preset ratio can be inversely correlated with the total number of blocked holes 122. The greater the number of blocked holes 122, the smaller the second preset ratio. This reduces the number of blind bolts inserted each time within the second target area, making the continuous impact force generated by insertion within the corresponding area less than a set value, thereby reducing the probability of the locking member 22 loosening.

[0059] In other embodiments, before inserting blind bolts into a second preset ratio of the blocking holes 122 in the second target area, that is, after completing step S60 and before executing step S71, the blind bolt insertion method for the fuse box 10 further includes: step S90, determining a second preset ratio based on the target number of the first target area and the target number of the second target area; wherein, if the target number of the second target area is less than the target number of the first target area, the second preset ratio is greater than the first preset ratio; if the target number of the second target area is greater than the target number of the first target area, the second preset ratio is less than the first preset ratio. The second preset ratio can be determined based on the relationship between the target numbers of the first and second target areas. This ensures that the number of blind bolts inserted each time in the second target area is within a set range, and that the impact force applied to the blind holes in the second target area approaches the impact force applied to the blind holes in the first target area. The execution order can be: step S10, step S20, step S30, step S40, step S51, step S60, step S90, step S71, and step S80.

[0060] Furthermore, the difference between the second preset ratio and the first preset ratio is less than 20%. That is, the difference between the second preset ratio and the first preset ratio can be controlled to be within 20%. When the difference between the first preset ratio and the second preset ratio is too large, the number of blind bolts inserted each time in the first arrangement area where the blocking holes 122 are densely distributed is balanced with the number of blind bolts inserted each time in the first arrangement area where the blocking holes 122 are sparsely distributed, resulting in an excessive number of blocking holes 122 remaining in the first arrangement area where the blocking holes 122 are densely distributed. Therefore, this embodiment limits the difference between the second preset ratio and the first preset ratio to within 20%, which can prevent the excessive difference from causing an excessive number of blocking holes 122 remaining in the first arrangement area where the blocking holes 122 are densely distributed without blind bolts, thereby ensuring that blind bolts in each first arrangement area can be inserted substantially simultaneously. In other embodiments, the difference between the second preset ratio and the first preset ratio is at least greater than 0, thereby preventing the cumulative impact force from being excessive when blind bolts are inserted continuously in the corresponding area and reducing the risk of the locking member 22 loosening.

[0061] Furthermore, the multiple locking members 22 are distributed in a ring shape, and the geometric center is the center of the ring area formed by the multiple locking members 22. The distribution pattern of the multiple locking members 22 and the position of the geometric center can be clearly determined, which facilitates the determination of the first arrangement area when the blind bolt is inserted.

[0062] Furthermore, the plurality of first arrangement areas are evenly distributed fan-shaped areas, which can clarify the shapes and distribution of the plurality of first arrangement areas, thereby facilitating the division of the first arrangement areas and the insertion of blind bolts.

[0063] Embodiment 2: This embodiment discloses a fuse box 10, which is manufactured using the blind bolt plugging method for fuse boxes 10 described in any of the above embodiments. The fuse box 10 includes a housing 11, an electrical component assembly, and multiple blind bolts. The electrical component assembly is mounted inside the housing 11. The housing 11 has a plugging surface. Multiple plugging holes 12 are distributed on the plugging surface. Some of the plugging holes 12 are electrical connection holes 121, while others are blocking holes 122. The electrical connection holes 121 are used to plug in wiring harnesses electrically connected to the electrical component assembly. The blind bolts correspond one-to-one with the blocking holes 122. The blind bolts are plugged into the corresponding blocking holes 122. The multiple blind bolts are arranged in a preset orientation. When the fuse box 10 is blindly plugged, the side of the housing 11 away from the plugging surface can be fixedly positioned on the positioning platform 21 of the positioning assembly 20, so that it can be processed in conjunction with the corresponding blind plugging method of the fuse box 10, ensuring processing efficiency while protecting the stable structure of the positioning platform 21 and extending the locking time limit of the locking member 22.

[0064] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present disclosure, and that in actual applications, various changes may be made thereto in form and detail without departing from the scope of the present disclosure.

Claims

1. A blind plug connection method for a fuse box, characterized in that: The fuse box blind bolt plugging method comprises: After the fuse box is positioned on the plug-in device, the geometric center of the distribution area of ​​the locking elements is obtained, and the first arrangement area of ​​the plug-in holes is obtained; the plug-in device includes a positioning assembly and a bolt assembly; the positioning assembly is used to position the fuse box; the bolt assembly is used to insert a blind bolt into the fuse box; the positioning assembly includes a positioning platform, a driving part, and a plurality of the locking elements; the positioning platform is detachably connected to the driving part via the plurality of the locking elements; a plurality of the plug-in holes are distributed on the plug-in surface of the fuse box; some of the plug-in holes are electrical connection holes, and others are blocking holes; Based on the geometric center, a plurality of first arrangement areas distributed around the geometric center are divided on a reference plane; each first arrangement area has another first arrangement area symmetrically distributed about the geometric center; the reference plane is parallel to the positioning platform; the set of the plurality of first arrangement areas covers the area where the blocking hole positions are arranged; Obtaining a target number of the blocked holes in each of the first arrangement areas; Determine a first target area, where the first target area is the first arrangement area with the largest number of targets; Inserting the blind plugs into some of the blocking holes in the first target area; Determining a second target area, where the second target area is the first arrangement area that is symmetrically distributed with the first target area about the geometric center; Inserting the blind plugs into some of the blocking holes in the second target area; The first target area is re-determined in descending order of the target number, and the step of inserting the blind bolts into some of the blocking holes in the first target area is returned to execution until all the blocking holes in the fuse box are inserted with the blind bolts.

2. A blind bolt plugging method for a fuse box according to claim 1, characterized in that: Inserting the blind plugs into the partially blocked holes in the first target area in an open state includes: A first preset ratio of the blocking holes in the first target area is connected with the blind bolts; the first preset ratio is less than 1; the first preset ratio is the ratio of the number of the connected blind bolts to the target number of the first target area.

3. A blind bolt plugging method for a fuse box according to claim 2, characterized in that: The first preset ratio is negatively correlated with the total number of the blocked holes of the fuse box.

4. A blind bolt plugging method for a fuse box according to claim 2, characterized in that: Inserting the blind plugs into some of the blocking holes in the second target area includes: The blind plugs are inserted into the blocking holes of a second preset ratio in the second target area; the second preset ratio is less than 1; and the second preset ratio is a ratio value of the target number in the second target area.

5. A blind bolt plugging method for a fuse box according to claim 4, characterized in that: The second preset ratio is negatively correlated with the total number of the blocked holes of the fuse box.

6. A blind bolt plugging method for a fuse box according to claim 4, characterized in that: Before the step of inserting the blind bolts into the blocking holes of the second preset proportion in the second target area, the fuse box blind bolt insertion method further includes: The second preset ratio is determined based on the target number of the first target area and the target number of the second target area; wherein, if the target number of the second target area is smaller than the target number of the first target area, the second preset ratio is greater than the first preset ratio; if the target number of the second target area is greater than the target number of the first target area, the second preset ratio is less than the first preset ratio.

7. A blind bolt plugging method for a fuse box according to claim 6, characterized in that: A difference between the second preset ratio and the first preset ratio is less than 20%.

8. A blind bolt plugging method for a fuse box according to claim 1, characterized in that: The plurality of locking members are distributed in a ring shape; the geometric center is the center of the ring area formed by the distribution of the plurality of locking members.

9. A blind bolt plugging method for a fuse box according to claim 1, characterized in that: The plurality of first arrangement areas are evenly distributed fan-shaped areas.

10. A fuse box, characterized in that: The fuse box is manufactured by the blind bolt plugging method for a fuse box according to any one of claims 1 to 9; The fuse box includes a housing, an electrical component assembly, and a plurality of blind bolts; the electrical component assembly is mounted inside the housing; the housing has a plugging surface; a plurality of plugging holes are distributed on the plugging surface; a portion of the plugging holes are electrical connection holes, and another portion of the plugging holes are blocking holes; the electrical connection holes are used to plug in wiring harnesses electrically connected to the electrical component assembly; the blind bolts correspond to the blocking holes one by one; and the blind bolts are plugged into the corresponding blocking holes; The plurality of blind bolts are arranged in a preset orientation.

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