Fuse box and vehicle

Abstract

The utility model discloses a fuse box and a vehicle, the fuse box comprises a box body assembly and a PCB, the PCB is arranged on the box body assembly, a fast-melting fuse, a slow-melting fuse, a busbar and an MEGA fuse are integrated on the PCB, and the fast-melting fuse and the slow-melting fuse are electrically connected through the busbar and the MEGA fuse respectively. The integration level of the fuse box can be improved so as to meet the requirements of miniaturization and light weight.

Description

Technical Field

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

[0002] With the continuous development of the new four modernizations of automobiles, the wiring harness field will also develop towards lightweight, high voltage, high speed, platformization and intelligence in the future, which also poses new challenges to the optimization and upgrading of power supply architecture. At present, the mainstream fuse box is still the plug-in fuse box. The capacity of the plug-in fuse box is greatly limited by the volume. Under the same capacity requirement, the plug-in fuse box has a larger volume and weight. An additional junction box is required to ensure the capacity of the plug-in fuse box, resulting in a low degree of integration of the fuse box and redundant space layout, which cannot meet the needs of miniaturization and lightweighting. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems in the prior art. To this end, the present invention provides a fuse box that can improve the integration of the fuse box to meet the needs of miniaturization and lightweighting.

[0004] The utility model also provides a vehicle using the fuse box.

[0005] According to the first embodiment of the present invention, the fuse box includes:

[0006] Box assembly;

[0007] A PCB board is provided in the box body assembly. The PCB board is provided with a fast-blow fuse, a slow-blow fuse, a bus and a MEGA fuse. The MEGA fuse is electrically connected to the fast-blow fuse and the slow-blow fuse respectively through the bus. The MEGA fuse is used to connect to a power supply.

[0008] The fuse box according to the embodiment of the first aspect of the present utility model has at least the following beneficial effects:

[0009] By integrating fast-blow fuses, slow-blow fuses, busbars, and MEGA fuses on the box assembly through a PCB board, the integration of the fuse box can be improved to meet the needs of miniaturization and lightweighting.

[0010] In other embodiments of the present invention, the box body assembly includes a shell and a cover body detachably connected to the shell, the shell is provided with a receiving groove and a first opening connected to the receiving groove, the PCB board is arranged in the receiving groove, the cover body covers the first opening, and the fast-blow fuse and the slow-blow fuse are both provided on the cover body.

[0011] In other embodiments of the present invention, the cover body is provided with a first mounting slot and a second mounting slot, the fast-blow fuse is installed in the first mounting slot and electrically connected to the PCB board, and the slow-blow fuse is installed in the second mounting slot and electrically connected to the PCB board.

[0012] In other embodiments of the present invention, the busbar includes a first conductive portion and a second conductive portion connected to the first conductive portion, the first conductive portion is provided on the PCB board, one end of the second conductive portion extends out of the PCB board, and the end of the second conductive portion away from the PCB board is connected to the MEGA fuse.

[0013] In other embodiments of the present invention, the busbar also includes a third conductive portion provided on the PCB board, the third conductive portion is connected to the first conductive portion, the third conductive portion extends along the length direction of the PCB board, and the first conductive portion extends along the width direction of the PCB board.

[0014] In other embodiments of the present invention, a connecting seat is further included, which is used to connect the instrument pipe beam of the vehicle, and the connecting seat is detachably arranged on the outer peripheral side of the box body assembly.

[0015] In other embodiments of the present invention, the connecting seat and the box body assembly are provided with a first limiting structure and a second limiting structure, and the first limiting structure and the second limiting structure cooperate with each other to enable the connecting seat and the box body assembly to be detachably connected.

[0016] In other embodiments of the present invention, the first limiting structure includes a connecting block provided on the box body assembly and a limiting protrusion provided on the connecting seat, the connecting block is provided with a first limiting groove and a second opening connected to the first limiting groove, the limiting protrusion is accommodated in the first limiting groove through the second opening, and the limiting protrusion can abut against the bottom wall of the first limiting groove.

[0017] In other embodiments of the present invention, the second limiting structure includes a second limiting groove provided on the connecting block and a limiting strip provided on the connecting seat, the second limiting groove has a third opening, the limiting strip is accommodated in the second limiting groove through the third opening, and the limiting strip can abut against the side of the second limiting groove away from the box body assembly to limit the limiting protrusion from exiting the first limiting groove from the second opening.

[0018] A vehicle according to an embodiment of the second aspect of the present invention includes:

[0019] instrument pipe beam;

[0020] The fuse box is arranged on the instrument pipe beam.

[0021] The fuse box according to the second embodiment of the present invention has at least the following beneficial effects:

[0022] The fuse box according to the first embodiment of the present invention integrates fast-blow fuses, slow-blow fuses, busbars and MEGA fuses on the box body assembly through a PCB board, thereby improving the integration of the fuse box to meet the requirements of miniaturization and lightweighting.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0025] Figure 1 This is an exploded schematic diagram of a fuse box in an embodiment of the present utility model;

[0026] Figure 2 This is a bottom view of the fuse box in the assembled state according to the embodiment of the present invention;

[0027] Figure 3 for Figure 1 Exploded diagram of the middle cover, fast-blow fuse, and slow-blow fuse;

[0028] Figure 4 for Figure 3 A partial enlarged view of part A;

[0029] Figure 5 It is a three-dimensional schematic diagram of the connecting seat in the embodiment of the utility model.

[0030] Reference numerals:

[0031] Box assembly 100, housing 110, receiving slot 111, first opening 112, hook 113, cover 120, first mounting slot 121, second mounting slot 122, mounting hole 123, connecting block 130, first limiting slot 131, second opening 1311, second limiting slot 132, third opening 1321, notch 133, avoidance slot 134, fourth opening 1341, fifth opening 1342, first pressing slope 1343, default hole 135, connecting bolt 140;

[0032] PCB board 200, tuning fork terminal 201, fast-blow fuse 210, slow-blow fuse 220, bus bar 230, first conductive portion 231, second conductive portion 232, third conductive portion 233, MEGA fuse 240, relay 250;

[0033] The connecting seat 300 , the limiting protrusion 310 , the second pushing inclined surface 311 , the limiting strip 320 , the main body 330 , and the connecting portion 340 . DETAILED DESCRIPTION

[0034] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] In the description of this utility model, "several" means more than one, "plurality" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the terms "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] In the description of the present invention, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the exemplary expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] In related technologies, with the continuous development of the new four modernizations of automobiles, the future of the wiring harness field will also develop towards the trend of lightweight, high voltage, high speed, platformization, and intelligence, which also poses new challenges to the optimization and upgrading of power supply architecture. At present, the mainstream fuse box is still the plug-in fuse box. The capacity of the plug-in fuse box is greatly limited by the volume. Under the same capacity requirement, the plug-in fuse box has a larger volume and weight. An additional junction box is required to ensure the capacity of the plug-in fuse box, resulting in a low degree of integration of the fuse box and redundant space layout, which cannot meet the needs of miniaturization and lightweighting. Based on this, the utility model proposes a fuse box that integrates fast-blow fuses, slow-blow fuses, busbars and MEGA fuses on a PCB board, which can improve the integration of the fuse box to meet the needs of miniaturization and lightweighting.

[0040] Reference Figure 1 , Figure 1 The figure shows an exploded schematic diagram of the fuse box in the embodiment of the present utility model, wherein: Figure 1 Disassemble the fuse box in the up and down direction. Figure 1 As shown, the fuse box of the first embodiment of the present invention includes a box assembly 100 and a PCB board 200. The PCB board 200 is disposed in the box assembly 100. The PCB board 200 is integrated with a fast-blow fuse 210, a slow-blow fuse 220, a bus bar 230, and a MEGA fuse 240. The MEGA fuse 240 can serve as a power transfer bridge. Through the bus bar 230, the MEGA fuse 240 is electrically connected to the fast-blow fuse 210 and the slow-blow fuse 220, respectively. This can improve the integration of the fuse box to meet the requirements of miniaturization and lightweighting. In addition, the MEGA fuse 240 can also optimize the power architecture to reduce the design cost of the power system.

[0041] It should be noted that the slow-blow fuse 220 is suitable for circuits with heavy loads, while the fast-blow fuse 210 is suitable for circuits with light loads. The main difference between the slow-blow fuse 220 and the fast-blow fuse 210 is that the melting heat energy value of the slow-blow fuse 220 is greater than that of the fast-blow fuse 210, making the slow-blow fuse 220 melt slower than the fast-blow fuse 210. When the circuit is overloaded, the slow-blow fuse 220 can gradually cut off the current to prevent circuit malfunctions such as overheating. The fast-blow fuse 210 is generally used for short-circuit protection in circuits. The fast-blow fuse 210 can cut off the circuit in a relatively short time to prevent wires and other electrical components from being damaged by excessive current.

[0042] In order to facilitate the installation of the PCB board 200, for example Figure 1As shown, the box body assembly 100 is divided into two parts: a shell 110 and a cover 120. The shell 110 is provided with a receiving groove 111, and the PCB board 200 is installed in the receiving groove 111. A first clamping structure is provided between the shell 110 and the cover 120. Through the first clamping structure, the shell 110 and the cover 120 are detachably connected. When installing the PCB board 200, the PCB board 200 can be first installed in the corresponding position in the receiving groove 111, and then the shell 110 and the cover 120 can be relatively fixed by the first clamping structure. The operation is simple, convenient and fast, and can improve the installation efficiency of the PCB board 200.

[0043] Specifically, the first clamping structure includes a hook 113 provided on the shell 110 and a mounting hole 123 provided on the cover body 120. The shell 110 is provided with a hook 113 on the opposite sides, and the cover body 120 is also provided with a mounting hole 123 on the opposite sides. The hook 113 corresponds to the mounting hole 123 one by one. When the shell 110 and the cover body 120 are relatively fixed, the hook portion of the hook 113 can be accommodated in the mounting hole 123 and abut against the side wall of the mounting hole 123 close to the shell 110, which can limit the separation of the shell 110 and the cover body 120 to stably connect the shell 110 and the cover body 120; when disassembling the shell 110, the hook portion of the hook 113 is squeezed out of the mounting hole 123 by a rod-shaped tool, so that the shell 110 and the cover body 120 can be separated. The operation is simple, convenient and quick, and the cover body 120 can be easily disassembled to facilitate the inspection and maintenance of the fuse box.

[0044] It is understandable that the positions of the hook 113 and the mounting hole 123 can be interchanged, that is, the hook 113 is provided on the cover 120 , and the mounting hole 123 is provided on the housing 110 , which will not be described in detail here.

[0045] As another embodiment, the hook 113 can be arranged on one side of the shell 110, and the mounting hole 123 can be arranged on the other side of the cover body 120, and the side of the shell 110 away from the hook 113 is hinged to the side of the cover body 120 away from the mounting hole 123. The maintenance personnel can open the cover body 120 by disconnecting the first clamping structure, which can facilitate the maintenance personnel to inspect the fuse box.

[0046] As another embodiment, the cover body 120 can also be slidably provided on the shell 110. For example, the cover body 120 and the shell 110 are a drawer-type structure, and a locking assembly is provided between the cover body 120 and the shell 110. When the cover body 120 is installed, the cover body 120 and the shell 110 can be relatively fixed by the locking assembly. When the cover body 120 is removed, the locking assembly is unlocked and the cover body 120 can be slid to separate the cover body 120 from the shell 110. The locking assembly can be a mechanical lock or other components, which will not be repeated here.

[0047] As another embodiment, the shell 110 and the cover 120 may also be connected by bolts. The shell 110 and the cover 120 may also be detachably connected, which will not be described in detail here.

[0048] It should be pointed out that, for example Figure 2 As shown, Figure 2 This is a bottom view of the fuse box in the assembled state in an embodiment of the present invention. A plurality of connecting structures are provided on the side of the shell 110 away from the cover 120. The connecting structures can be configured as plug-in columns or plug-in holes. The slow-blow fuse 220 and the fast-blow fuse 210 are respectively connected to the corresponding connecting structures. The connecting structures are used to plug and cooperate with external connectors to facilitate the installation of external connectors.

[0049] Reference Figure 1 To facilitate assembly of the MEGA fuse 240 and the busbar 230, two connecting bolts 140 are provided on the bottom wall of the accommodating groove 111. The two connecting bolts 140 are arranged side by side and spaced apart along the width direction of the housing 110. The two ends of the MEGA fuse 240 are respectively sleeved on the corresponding connecting bolts 140, and the end of the busbar 230 extending out of the PCB board 200 is also sleeved on one of the connecting bolts 140. The two connecting bolts 140 are respectively sleeved with nuts, which are threadedly engaged with the corresponding connecting bolts 140. The assembler can use one of the nuts to relatively fix one end of the MEGA fuse 240 and one end of the busbar 230, and then fix the other end of the MEGA fuse 240 by screwing the other nut, which can facilitate the connection of the MEGA fuse 240 and the busbar 230.

[0050] In order to facilitate the installation and positioning of the fast-blow fuse 210 and the slow-blow fuse 220, for example Figure 3 As shown, Figure 3 for Figure 1 Schematic diagram of the exploded view of the middle cover 120, the fast-blow fuse 210 and the slow-blow fuse 220. Figure 3The housing 110, PCB board 200 and connecting base 300 are not shown. A first mounting groove 121 and a second mounting groove 122 are provided on the side of the cover 120 facing away from the housing 110. A plurality of tuning fork terminals 201 are provided on the side of the PCB board 200 facing the cover 120. The fast-blow fuse 210 and the slow-blow fuse 220 are electrically connected to the PCB board 200 through the corresponding tuning fork terminals 201. The fast-blow fuse 210 is installed in the first mounting groove 121 by plugging. The size of the side of the fast-blow fuse 210 away from the cover 120 matches the cross-sectional size of the first mounting groove 121, which can limit the lateral movement of the fast-blow fuse in the first mounting groove 121. The portion of the fast-blow fuse 210 away from the cover 120 extends out of the first mounting groove 121, which can facilitate the installation and positioning of the fast-blow fuse 210 and the removal of the fast-blow fuse 210, thereby facilitating the replacement of the fast-blow fuse 210 by maintenance personnel.

[0051] Similarly, the slow-blow fuse 220 is also installed in the second mounting groove 122 by plugging. The size of the side of the slow-blow fuse 220 away from the cover body 120 matches the size of the cross-section of the second mounting groove 122, and the part of the side of the slow-blow fuse 220 away from the cover body 120 extends out of the second mounting groove 122, which can facilitate the installation and positioning of the slow-blow fuse 220 and the removal of the slow-blow fuse 220, thereby facilitating the maintenance personnel to replace the slow-blow fuse 220.

[0052] It should be noted that the cross-sectional dimensions of the first mounting groove 121 are inconsistent with the cross-sectional dimensions of the second mounting groove 122. This facilitates identification of the first mounting groove 121 and the second mounting groove 122 by the assembler so as to accurately install the fast-blow fuse 210 and the slow-blow fuse 220. The cross-sectional dimensions of the first mounting groove 121 refer to the cross-sectional dimensions of the first mounting groove 121 in a direction perpendicular to the recess of the first mounting groove 121, while the cross-sectional dimensions of the second mounting groove 122 refer to the cross-sectional dimensions of the second mounting groove 122 in a direction perpendicular to the recess of the second mounting groove 122. These details will not be further described herein.

[0053] It should be noted that since the volume of the fast-blow fuse 210 is smaller than that of the slow-blow fuse 220, the capacity of the fuse box can be increased by adjusting the ratio of the fast-blow fuse 210 to the slow-blow fuse 220 so that the number of fast-blow fuses 210 is greater than the number of slow-blow fuses 220.

[0054] To increase the capacity of the fuse box, e.g. Figure 1As shown, the fuse box of the present invention embodiment integrates the MEGA fuse 240 on the outside of the PCB board 200 via the busbar 230. The busbar 230 is a carrier for high current distribution. The busbar 230 includes a first conductive portion 231 and a second conductive portion 232. The first conductive portion 231 is soldered to the PCB board 200, while one end of the second conductive portion 232 extends out of the PCB board 200. The end of the second conductive portion 232 away from the PCB board 200 is connected to the MEGA fuse 240. This can reduce the space occupied by the MEGA fuse 240 on the PCB board 200, allowing the PCB board 200 to integrate more fast-blow fuses 210 and slow-blow fuses 220, thereby increasing the capacity of the fuse box.

[0055] It should be noted that the busbar 230 can be made of copper, silver or other conductive materials, which is not limited here.

[0056] It should be pointed out that, for example Figure 1 As shown, the cross-section of the PCB 200 perpendicular to its thickness is rectangular. The busbar 230 further includes a third conductive portion 233, which is connected to the first conductive portion 231. The first conductive portion 231 and the third conductive portion 233 are arranged perpendicularly. The first conductive portion 231 extends along the width of the PCB 200, while the second conductive portion 232 and the third conductive portion 233 extend in opposite directions along the length of the PCB 200. This improves the structural strength of the busbar 230, reduces bending deformation of the first conductive portion 231, and thereby increases the service life of the fuse box. As another embodiment, the angle between the first conductive portion 231 and the third conductive portion 233 can be acute or obtuse. The angle between the first conductive portion 231 and the third conductive portion 233 can be selected based on the specific shape of the cross-section of the PCB 200 perpendicular to its thickness, and will not be further described here.

[0057] It should also be noted that the first conductive portion 231, the second conductive portion 232, and the third conductive portion 233 can be integrally formed by sheet metal bending, which can reduce the number of molds, thereby reducing mold production costs and, consequently, the fuse box production costs. Of course, in some specific embodiments, the first conductive portion 231, the second conductive portion 232, and the third conductive portion 233 can also be connected by welding. Welding methods include, but are not limited to, resistance welding, ultrasonic welding, or laser welding.

[0058] It should also be noted that in order to reduce the volume of the fuse box, the connection between the first conductive portion 231 and the second conductive portion 232 is located at the corner of the PCB board 200, that is, the first conductive portion 231 and the second conductive portion 232 are both arranged at the edge of the PCB board 200, so that the tuning fork terminals 201 on the PCB board 200 can be concentrated in the middle area of the PCB board 200, which can minimize the volume of the fuse box.

[0059] For example Figure 3-5 As shown, Figure 4 for Figure 3 A partial enlarged view of part A in the middle. Figure 5 This is a three-dimensional schematic diagram of the connecting seat 300 of an embodiment of the present invention. The cover body 120 of the embodiment of the present invention cooperates with the first limiting structure and the second limiting structure to make the connecting seat 300 detachably connected to the box body assembly 100, which can facilitate the installation and removal of the connecting seat 300.

[0060] Specifically, for example Figure 3 As shown, the first limiting structure includes a connecting block 130 provided on the cover body 120 and a limiting protrusion 310 provided on the connecting seat 300. The connecting block 130 is located on the outer peripheral side of the cover body 120. The connecting block 130 is provided with a first limiting groove 131 and a second opening 1311 communicating with the first limiting groove 131. The second opening 1311 is located on a side of the connecting block 130 away from the cover body 120. The limiting protrusion 310 is accommodated in the first limiting groove 131 through the second opening 1311, and the limiting protrusion 310 can abut against the bottom wall of the first limiting groove 131 to limit the movement of the connecting seat 300 in a direction close to the housing 110.

[0061] The second limiting structure includes a second limiting groove 132 provided on the connecting block 130 and a limiting strip 320 provided on the connecting seat 300. The second limiting groove 132 and the limiting strip 320 are both configured with two, the second limiting groove 132-the first limiting groove 131-the second limiting groove 132 are arranged in sequence, the limiting strip 320-the limiting protrusion 310-the limiting strip 320 are arranged in sequence, and a third opening 1321 is provided on one side of the bottom wall of the second limiting groove 132 and the first limiting groove 131. The second opening 1311 and the third opening 1321 are located on different sides of the connecting block 130, and the limiting strip 320 is passed through The connector 300 is accommodated in the second limiting groove 132 through the third opening 1321. The limiting strip 320 can abut against the side of the second limiting groove 132 away from the box assembly 100 to restrict the limiting protrusion 310 from exiting the first limiting groove 131 through the second opening 1311. The first limiting structure can restrict the limiting strip 320 from moving in the direction of exiting the third opening 1321, and the second limiting structure can restrict the limiting protrusion 310 from moving in the direction of exiting the second opening 1311. Under the combined action of the first and second limiting structures, the connector 300 can be stably mounted on the cover 120. It will be understood that when the limiting strip 320 is accommodated in the second limiting groove 132, the limiting strip 320 can also serve as a guide, guiding the connector 300 to move in the up and down directions, so that the limiting protrusion 310 can accurately enter the first limiting groove 131.

[0062] It should be noted that the positions of the first limiting groove 131 and the limiting protrusion 310 can also be interchanged, that is, the first limiting groove 131 is provided on the connecting seat 300, and the limiting protrusion 310 is provided on the connecting block 130. The limiting protrusion 310 can also be accommodated in the first limiting groove 131, and can limit the movement of the limiting bar 320 in the direction of exiting the third opening 1321. As another embodiment, the first limiting structure can also be a structure in which a limiting pin and a limiting hole cooperate. The limiting pin is slidably provided on the connecting seat 300, and a compression spring is provided between the limiting pin and the connecting seat 300. The limiting hole is provided on the connecting block 130. When the limiting pin is accommodated in the limiting hole, the compression spring extends. When the limiting pin abuts against the periphery of the limiting hole, the compression spring contracts. This will not be described in detail here.

[0063] It should also be noted that the positions of the second limiting groove 132 and the limiting strip 320 can also be interchanged, that is, the second limiting groove 132 is provided with a connecting seat 300, and the limiting strip 320 is provided on the connecting block 130, which can also limit the limiting protrusion 310 from moving in the direction of exiting the second opening 1311.

[0064] It should also be noted that the first limiting structure and the second limiting structure as a whole can also be replaced by a second clamping structure. The specific implementation of the second clamping structure is similar to that of the first clamping structure and will not be repeated here.

[0065] It should be noted that, for example Figure 4 As shown, an avoidance groove 134 is provided below the first limiting groove 131, and the avoidance groove 134 has a fourth opening 1341 and a fifth opening 1342. The fourth opening 1341 and the fifth opening 1342 are arranged adjacent to each other, and the fourth opening 1341 is located on the side of the connecting block 130 facing the shell 110. Along the width direction of the shell 110, the fifth opening 1342 is located on the side of the connecting block 130 away from the cover body 120, so that the avoidance groove 134 can avoid the limiting protrusion 310 to reduce the difficulty of installing the connecting seat 300, which will not be repeated here.

[0066] Next, the installation process of the connecting seat 300 is described in detail. First, align the limiting protrusion 310 and the limiting bar 320 with the avoidance groove 134 and the second limiting groove 132 respectively, and slide the connecting seat 300 from bottom to top so that the limiting protrusion 310 and the limiting bar 320 enter the avoidance groove 134 and the second limiting groove 132 respectively. When the limiting protrusion 310 moves to the position between the avoidance groove 134 and the first limiting groove 131, the limiting protrusion 310 gradually withdraws from the avoidance groove 134 from the fifth opening 1342. Continue to move the connecting seat 300 so that the limiting protrusion 310 enters the first limiting groove 131 from the second opening 1311, and the installation of the connecting seat 300 is completed.

[0067] As another embodiment, the first limiting structure and the second limiting structure may also be provided between the housing 110 and the connecting base 300 , which will not be described in detail here.

[0068] It should be noted that the connecting base 300 can also be detachably connected to the cover body 120 by means of bolt connection or clamping, which can also facilitate the installation of the connecting base 300.

[0069] It should be noted that the connecting seat 300 can be connected to the instrument tube beam by bolt connection or clamping, which can facilitate fixing the fuse box on the instrument tube beam of the car.

[0070] It is understandable that the cover 120 and the connecting block 130 are an integral structure, and the cover 120 and the connecting block 130 can be integrally formed by injection molding, which can reduce the number of molds, thereby reducing the production cost of the molds and thus reducing the production cost of the fuse box.

[0071] In order to be able to flexibly arrange the fuse box according to different space environments, such as Figure 3As shown, two connecting blocks 130 are provided on each of the three sides of the cover 120. Each connecting block 130 on each side can be connected to a connecting base 300. The assembler can select the installation position of the connecting base 300 according to the actual installation environment, which can improve the installation flexibility of the fuse box. As another embodiment, the number of connecting blocks 130 on the corresponding sides of the cover 120 can be equal or unequal, which is not limited here. Of course, in some specific embodiments, connecting blocks 130 can also be provided on two or four sides of the cover 120, which is not limited here.

[0072] In order to improve the connection strength of the limit bar 320, a connecting portion 340 is provided between the main body 330 and the limit bar 320, one side of the connecting portion 340 is connected to the main body 330, and the side of the connecting portion 340 away from the main body 330 is connected to the limit bar 320, the connecting portion 340 and the limit bar 320 as a whole are T-shaped structure, and the upper end surface of the connecting portion 340 is flush with the upper end surface of the limit bar 320, and the lower end surface of the connecting portion 340 is flush with the lower end surface of the limit bar 320, and the second limiting groove 132 is provided with a notch 133 on the side away from the cover body 120, and the notch 133 and the second limiting groove 132 are T-shaped structure as a whole, and the connecting portion 340 is passed through the notch 133, which can improve the structural strength of the connecting seat 300, reduce the deformation of the limit bar 320, and improve the service life of the connecting seat 300.

[0073] It should be noted that, for example Figure 2 As shown, a default hole 135 is provided on the side of the connecting block 130 away from the first limiting groove 131, and the default hole 135 passes through the upper and lower ends of the connecting block 130 in the up and down directions. The side wall of the avoidance groove 134 close to the first limiting groove 131 is provided with a first pushing slope 1343, and the limiting protrusion 310 is provided with a second pushing slope 311. By setting the default hole 135, when the first pushing slope 1343 abuts the second pushing slope 311, the limiting protrusion 310 can push the middle position of the connecting block 130 to produce a slight deformation, so that the limiting protrusion 310 can smoothly enter the ground limiting groove, which can reduce the difficulty of installing the connecting seat 300 and will not be repeated here.

[0074] The PCB board 200 of the embodiment of the present invention is further provided with a relay 250. The relay 250 is a micro relay 250 or an electromagnetic relay 250. The relay 250 can prevent high voltage current from passing through the control circuit and causing danger, thereby improving the safety of the fuse box.

[0075] The second embodiment of the present invention provides a vehicle, comprising an instrument tube beam and the fuse box of the aforementioned embodiments, wherein the fuse box is disposed on the instrument tube beam to facilitate installation and fixation of the fuse box. It should be noted that the instrument tube beam can be a well-known technology and will not be described in detail here.

[0076] The vehicle according to the second embodiment of the present invention adopts the fuse box according to the first embodiment of the present invention. A fast-blow fuse 210, a slow-blow fuse 220, a bus 230, and a MEGA fuse 240 are integrated on the box body assembly 100 through a PCB board 200. The MEGA fuse 240 can be used as a power transfer bridge. The MEGA fuse 240 is electrically connected to the fast-blow fuse 210 and the slow-blow fuse 220 through the bus 230, thereby improving the integration of the fuse box to meet the requirements of miniaturization and lightweighting.

[0077] The vehicle can be a private car, such as a sedan, SUV, MPV, or pickup truck. It can also be a commercial vehicle, such as a van, bus, small truck, or large trailer. It can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0078] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. In addition, the embodiments of the present invention and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A fuse box, characterized in that: include: Box assembly; A PCB board is provided in the box body assembly. The PCB board is provided with a fast-blow fuse, a slow-blow fuse, a bus and a MEGA fuse. The MEGA fuse is electrically connected to the fast-blow fuse and the slow-blow fuse respectively through the bus. The MEGA fuse is used to connect to a power supply.

2. The fuse box according to claim 1, wherein: The box assembly includes a shell and a cover detachably connected to the shell. The shell is provided with a receiving groove and a first opening connected to the receiving groove. The PCB board is arranged in the receiving groove. The cover is arranged to cover the first opening. The fast-blow fuse and the slow-blow fuse are both arranged on the cover.

3. The fuse box according to claim 2, wherein: The cover body is provided with a first mounting slot and a second mounting slot. The fast-blow fuse is installed in the first mounting slot and electrically connected to the PCB board. The slow-blow fuse is installed in the second mounting slot and electrically connected to the PCB board.

4. The fuse box according to claim 1, wherein: The busbar includes a first conductive portion and a second conductive portion connected to the first conductive portion, the first conductive portion is provided on the PCB board, one end of the second conductive portion extends out of the PCB board, and the end of the second conductive portion away from the PCB board is connected to one end of the MEGA fuse.

5. The fuse box according to claim 4, characterized in that The busbar further includes a third conductive portion provided on the PCB board, the third conductive portion being connected to the first conductive portion, the third conductive portion extending along the length direction of the PCB board, and the first conductive portion extending along the width direction of the PCB board.

6. The fuse box according to claim 1, wherein: The fuse box further comprises a connecting seat, which is used to connect to an instrument pipe beam of a vehicle, and the connecting seat is detachably arranged on the outer peripheral side of the box body assembly.

7. The fuse box according to claim 6, characterized in that A first limiting structure is provided between the connecting base and the box body assembly, and a second limiting structure is provided between the connecting base and the box body assembly. The first limiting structure and the second limiting structure cooperate with each other to enable the connecting base and the box body assembly to be detachably connected.

8. The fuse box according to claim 7, wherein: The first limiting structure includes a connecting block provided on the box body assembly and a limiting protrusion provided on the connecting seat, the connecting block is provided with a first limiting groove and a second opening connected to the first limiting groove, the limiting protrusion is accommodated in the first limiting groove through the second opening, and the limiting protrusion can abut against the bottom wall of the first limiting groove.

9. The fuse box according to claim 8, wherein: The second limiting structure includes a second limiting groove provided on the connecting block and a limiting strip provided on the connecting seat, the second limiting groove has a third opening, the limiting strip is accommodated in the second limiting groove through the third opening, and the limiting strip can abut against a side of the second limiting groove away from the box body assembly to limit the limiting protrusion from exiting the first limiting groove from the second opening.

10. A vehicle, characterized in that include: instrument pipe beam; The fuse box according to any one of claims 1 to 9, wherein the fuse box is arranged on the instrument tube beam.

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