Fuse box

Abstract

The invention discloses a fuse box, which comprises a fuse box body and a busbar clamped in the fuse box body, the busbar is provided with a fuse plugging part and an electricity input connecting part, and the electricity input connecting part is provided with a slot along the clamping direction of the busbar; the safety box comprises a safety box body, a slot is formed in the safety box body, the safety box further comprises a power input part inserted into the slot, a power input seat is arranged on the safety box body and provided with an insertion cavity communicated with the safety box body in a penetrating mode, and the power input part sequentially penetrates through the slot and is inserted into the insertion cavity. The power inlet part comprises two opposite power inlet sheets, a plugging space for plugging the plug-in type fuse and the relay is formed between the two power inlet sheets, the opposite sides of the two power inlet sheets are respectively provided with a limiting groove, the inner walls of the limiting grooves are clamped with the inner wall of the slot, a new power inlet part is plugged into the slot on the power inlet connecting part, and the plug-in type fuse and the relay are plugged into the new power inlet part. According to the utility model, the mode that the slot on the busbar is plugged with the power input member and then the power input member is plugged with the power input seat is utilized to replace the traditional welding or riveting, so that the installation is more convenient and efficient.

Description

Technical Field

[0001] This application relates to the technical field of fuse boxes, and particularly to a fuse box. Background Art

[0002] In the automotive field, the stability and safety of the power system are of crucial importance. As a key component for protecting each electrical branch of the vehicle, the automotive power fuse box assembly is of great significance for ensuring the normal operation of the vehicle's electrical system. It can effectively limit the rated current carried by each electrical branch of the vehicle within a safe range, avoiding damage to electrical components or even fire caused by overloading or short-circuit of the line, and ensuring the safe and reliable operation of all electrical components of the vehicle.

[0003] Currently, the conventional structure of the automotive power fuse box assembly in the industry generally includes a box body, conductive sheets, plug-in terminals, fuses, and relays disposed inside the box body. When a new electrical branch needs to be added, the traditional method usually involves welding or riveting a new connecting conductive sheet onto the conductive sheet inside the fuse box to deal with the increase in electrical branches.

[0004] However, these existing technical means have obvious defects. The method of welding or riveting a new connecting conductive sheet has a cumbersome installation process and low efficiency. Professional tools and technicians are required for operation, consuming a large amount of time and labor costs. Moreover, once the new connecting conductive sheet is installed, it is not convenient for disassembly and replacement, and subsequent maintenance work is difficult. Especially when adding a relatively short electrical branch, due to limited operating space and increased process difficulty, the installation efficiency of welding or riveting will be further reduced. If the electrical branch needs to be adjusted or the conductive sheet needs to be repaired during use, it will face great obstacles, seriously affecting the maintenance and upgrade of the vehicle's electrical system. Summary of the Invention

[0005] To facilitate adding a new electrical branch to the fuse box, a fuse box is provided.

[0006] The above application objective of this application is achieved through the following technical solutions: A fuse box includes a fuse box body and a busbar clamped inside the fuse box body. The busbar is provided with a fuse plugging portion and a power input connection portion. The power input connection portion is provided with a slot along the clamping direction of the busbar. The fuse box further includes a power input component inserted into the slot. The fuse box body is provided with a power input seat. The power input seat is provided with a plugging cavity penetrating and communicating with the fuse box body, and the power input component sequentially passes through the slot and is inserted into the plugging cavity. The power input component includes two opposing power input sheets. A plugging space for inserting plug-in fuses and relays is formed between the two power input sheets. Limiting grooves are respectively formed on the opposite sides of the two power input sheets, and the inner walls of the limiting grooves are clamped with the inner walls of the slot.

[0007] By adopting the above technical solution, when it is necessary to add a shorter power-consuming branch circuit, only a new power inlet component needs to be inserted into the slot on the power inlet connection part. The inner wall of the limiting groove of the power inlet component is clamped with the inner wall of the slot and is electrically connected to the bus bar, ensuring the stable installation of the power inlet component. The insertion space formed between the two power inlet pieces can be used for inserting plug-in fuses and relays. By using the method of inserting the slot on the bus bar with the power inlet component and then inserting the power inlet component into the power inlet seat to replace the traditional welding or riveting, the installation is more convenient and efficient, and the time spent on adding a new branch circuit is reduced.

[0008] Preferably, arc-shaped contact bosses for contacting the plug-in fuse and the relay are respectively arranged on one side of the two power inlet pieces facing each other.

[0009] By adopting the above technical solution, the arc-shaped contact bosses arranged on one side of the two power inlet pieces facing each other contact the plug-in fuse and the relay, which can increase the contact area and at the same time form a clamping force on the plug-in fuse and the relay. When the vehicle vibrates, the stability of the plug-in fuse and the relay inserted into the power inlet piece can be improved, reducing the safety hazard of the two breaking away from the clamping connection, ensuring the stable power supply of the vehicle electrical system, and ensuring the safe and reliable operation of all vehicle electrical components.

[0010] Preferably, the power inlet component includes a connecting piece connecting the upper ends of the two power inlet pieces, and the lower side wall of the connecting piece is flush with the inner side wall of the limiting groove.

[0011] By adopting the above technical solution, when the power inlet component is inserted into the slot and the power inlet seat in sequence, the lower side wall of the connecting piece will abut against the power inlet connection part, thereby limiting the insertion depth of the power inlet component and reducing the risk that the end of the power inlet component passes through the power inlet seat and is located on the other side of the fuse box body.

[0012] Preferably, sliding-in guiding surfaces are respectively arranged on one side of the two power inlet pieces facing away from each other. The upper end of the sliding-in guiding surface is connected to the inner side wall of the limiting groove, and the two inner side walls of the slot respectively slide over the fulcrums of the two sliding-in guiding surfaces with interference.

[0013] By adopting the above technical solution, when the bus bar and the power inlet component are assembled, the two inner side walls of the slot can smoothly slide over their fulcrums along the sliding-in guiding surfaces with interference, making it more convenient for the power inlet component to be inserted into the slot and improving the assembly efficiency; at the same time, the interference fit ensures the stability of the connection between the power inlet component and the bus bar, and further ensures the stability of the fuse box circuit connection, contributing to ensuring the normal operation of the vehicle electrical system and avoiding damage to electrical components or even causing a fire due to unstable connection.

[0014] Preferably, a sliding-out guiding surface is arranged between the upper end of the sliding-in guiding surface and the inner side wall of the limiting groove.

[0015] By adopting the above technical solution, the sliding guiding surface facilitates the sliding out of the power inlet part from the slot, improves the convenience of disassembly and assembly of the power inlet part, and solves the problems of inconvenient disassembly, replacement and difficult maintenance in the prior art after adding an electric branch circuit.

[0016] Preferably, guiding members are respectively arranged on two inner side walls of the slot communicating with the insertion space, and guiding inclined surfaces for inserting the power inlet part are arranged at the upper ends of the guiding members.

[0017] By adopting the above technical solution, guiding members are arranged on two inner side walls of the slot and guiding inclined surfaces are arranged at the upper ends of the guiding members, which can play a guiding role when the power inlet part is inserted into the slot, make the power inlet part insert more smoothly and accurately, and improve the installation efficiency.

[0018] Preferably, a positioning member is further included. A plurality of jacks are formed in the fuse box body. Insertion members that are clamped in the jacks are arranged on the positioning member. A through guiding groove is further formed in the positioning member along the direction of clamping the bus bar on the fuse box body. A sliding inclined surface is arranged at the connection between the guiding groove and the upper surface of the positioning member, and the bus bar passes through the sliding inclined surface, passes through the guiding groove and is clamped on the fuse box body in this way.

[0019] By adopting the above technical solution, the fuse box body is provided with jacks, and the insertion members of the positioning member are clamped with the jacks, so that the positioning member can be connected and fixed to the fuse box body. The positioning member is clamped on the fuse box body before the bus bar is installed. A sliding inclined surface is arranged at the connection between the guiding groove on the positioning member and the upper surface, so that the bus bar can smoothly pass through the guiding groove along the sliding inclined surface and then be clamped on the fuse box body, which not only facilitates the installation of the bus bar, improves the installation efficiency, but also ensures that the bus bar is accurately installed in place.

[0020] Preferably, an activity cavity is further formed in the positioning member along the grooving direction of the guiding groove. The insertion member includes a sleeve, a rotating member and a sliding member. The sleeve is fixed on the inner wall of the activity cavity, and a through spiral groove is formed on the outer wall of the sleeve; the rotating member slides along the radial direction of the sleeve on the inner wall of the sleeve, and a through sliding groove is formed on the outer wall of the rotating member along its own axial direction; one end of the sliding member slides along the radial direction of the rotating member on the inner wall of the rotating member, a sliding block is arranged on the outer wall of the end of the sliding member located in the rotating member, the sliding block is located in the sliding groove and the spiral groove, the other end of the sliding member is provided with a limiting end clamped in the jack, and an activity groove for the limiting end to move is arranged in the positioning member.

[0021] By adopting the above technical solution, the positioning member can assist in clamping the busbar to the fuse box body. The insertion member arranged in the movable cavity of the positioning member is composed of a sleeve, a rotating member, and a sliding member. When the positioning member is clamped to the fuse box body, the rotating member is rotated, and its chute can drive the cooperating part to rotate up or down in the spiral groove of the sleeve, so that the limiting end at the lower end of the sliding member rotates up or down correspondingly, and is more flexibly and stably clamped in the jack of the fuse box body.

[0022] Preferably, the material of the limiting end has elastic deformation, and the limiting end is semi-circular.

[0023] By adopting the above technical solution, the material of the limiting end has elastic deformation and is semi-circular. When inserted into the jack of the fuse box body, it can elastically deform to be inserted smoothly, and then restore its shape and firmly clamp in the jack after insertion, ensuring the stable connection between the positioning member and the fuse box body, facilitating the positioning and installation of the busbar, and can be elastically deformed and taken out again during later disassembly, which is beneficial to the installation, maintenance, and replacement of the positioning member.

[0024] Preferably, a power connection terminal is provided on the fuse box body. A fixing groove is formed on the inner wall of the power connection terminal. A fixing block for being inserted and limited by the fixing groove is provided on the outer wall of the positioning member. And a through wire slot is formed on one side of the positioning member facing the power connection terminal, and the slotting direction of the wire slot is perpendicular to the slotting direction of the guiding slot.

[0025] By adopting the above technical solution, after the positioning member assists in inserting the busbar, the positioning member is removed from the fuse box body, and the fixing block on the outer wall of the positioning member is inserted into the fixing groove on the inner wall of the power connection terminal for limiting. At the same time, the rotating member is rotated, and the limiting end will spiral up into the wire slot. Due to its own elastic material, the limiting end can limit the wires in the wire slot, thereby playing a role in bundling the wires.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Insert a new power inlet member into the slot on the power inlet connection part. The inner wall of the self-limiting slot of the power inlet member is clamped with the inner wall of the slot to achieve electrical connection with the busbar. The insertion space formed between the two power inlet pieces can be used for inserting plug-in fuses and relays. The method of inserting the busbar into the power inlet member through the slot on the busbar and then inserting the power inlet member into the power inlet socket replaces the traditional welding or riveting method, making the installation more convenient and efficient, and reducing the time spent on adding new branches; 2. The positioning member is clamped and rotated on the fuse box body before the busbar is installed. The positioning member is provided with a guiding slot and a sliding inclined surface at the connection between the guiding slot and the upper surface, so that the busbar can smoothly pass through the guiding slot through the sliding inclined surface and be clamped to the fuse box body, facilitating the installation of the busbar, improving the installation efficiency, and ensuring that the busbar is accurately installed in place; 3. The positioning member is limited by inserting it into the fixing block through the fixing groove. At the same time, when the rotating member is rotated, the limiting end will spiral upward into the wire bundling groove. Due to its elastic material, the limiting end can limit the wires in the wire bundling groove, playing a role in bundling wires. 4. The power inlet member is convenient for disassembly and replacement, facilitating subsequent adjustment of the power-using branch or maintenance of the conductive sheet, which is beneficial to the maintenance and upgrade of the automotive electrical system. Description of the Drawings

[0027] Figure 1 is a schematic structural diagram of a first embodiment of a fuse box; Figure 2 is an exploded view among the bus bar, the power inlet base, and the power inlet member; Figure 3 is an exploded view between the bus bar and the power inlet member; Figure 4 is a schematic structural diagram of the power inlet member; Figure 5 is a cross-sectional view of the positioning member clamped in the jack; Figure 6 is Figure 5 a partial enlarged view at A; Figure 7 is an exploded view between the positioning member and the plug-in member; Figure 8 is an exploded view of the plug-in member; Figure 9 is a cross-sectional view of the positioning member clamped in the power connection terminal.

[0028] Reference Numerals: 1. Fuse box body; 11. Jack; 12. Power inlet base; 121. Plug-in cavity; 13. Power connection terminal; 131. Fixing groove; 2. Bus bar; 21. Fuse plug-in part; 211. Plug-in piece; 2111. Contact piece; 2112. Contact space; 2113. Contact protrusion; 22. Power inlet connection part; 221. Slot; 222. Guide part; 223. Guide inclined plane; 3. Power inlet member; 31. Power inlet piece; 32. Connection piece; 33. Plug-in space; 34. Limiting groove; 35. Sliding-in guide surface; 36. Sliding-out guide surface; 37. Arc-shaped contact boss; 4. Positioning member; 41. Guide groove; 42. Sliding inclined plane; 43. Activity cavity; 44. Fixing block; 45. Activity groove; 46. Wire bundling groove; 5. Plug-in member; 51. Sleeve; 511. Spiral groove; 52. Rotating member; 521. Chute; 53. Sliding member; 531. Sliding end; 532. Sliding block; 533. Limiting end. Detailed Embodiment

[0029] The following is a further detailed introduction in conjunction with the drawings of the specification: Embodiment

[0030] As shown in the appendix Figure 1 and the appendix Figure 2 As shown, a fuse box includes a fuse box body 1 and a busbar 2. Multiple rows of jacks 11 for external circuit plugging are provided on the fuse box body 1. The jacks 11 in the same row are parallel to each other. The busbar 2 is a conductive metal sheet. The busbar 2 is clamped and installed between two adjacent rows of jacks 11. A fuse plugging part 21 and a power input connection part 22 are provided on the busbar 2.

[0031] A plurality of uniformly spaced plugging pieces 211 are fixed on the fuse plugging part 21. The plugging pieces 211 include two opposite contact pieces 2111. A contact space 2112 for plugging a plug-in type fuse is formed between the two opposite contact pieces 2111. And opposite contact protrusions 2113 are respectively fixed on one side of the two contact pieces 2111 facing each other, which improves the stability of the plug-in type fuse plugged with the contact piece 2111 and reduces the safety hazard of the two disengaging from the clamping connection.

[0032] The power input connection part 22 is vertically fixed on the side wall of the busbar 2. A slot 221 is opened in the power input connection part 22 along the clamping direction of the busbar 2. A power input member 3 is plugged in the slot 221. A power input seat 12 for plugging the lower end of the power input member 3 is provided on the fuse box body 1. The inside of the power input seat 12 is hollow, and a plugging cavity 121 penetrating to the other side of the fuse box body 1 is provided in the power input seat 12. And the power input member 3 sequentially passes through the slot 221 and is plugged in the plugging cavity 121 to realize power transmission and distribution, which is convenient for the connection and management of the power consumption branch circuits. Compared with the traditional method of welding or riveting new connection conductive sheets, the disassembly and assembly work efficiency is greatly improved.

[0033] As shown in the appendix Figure 3 and the appendix Figure 4 As shown, the power input member 3 includes two opposite power input sheets 31 and a connection sheet 32 fixedly connected to the upper ends of the two power input sheets 31. The two power input sheets 31 together form the main structure of the power input member 3. The power input sheets 31 are usually made of a metal material with good conductivity. The shape of the power input sheets 31 is a sheet structure. And the power input sheets 31 in this application are composed of three overlapping conductive sheets in a sheet structure and riveted to form a certain thickness to ensure that it can withstand a certain current. A plugging space 33 for plugging a plug-in type fuse or a relay is formed between the two power input sheets 31. The setting of the plugging space 33 provides an installation position for the plug-in type fuse and the relay, so that they can be electrically connected to the power input member 3.

[0034] On the opposite sides of the two power inlet pieces 31, limiting grooves 34 are respectively formed. The limiting grooves 34 are rectangular, and the inner walls of the limiting grooves 34 are clamped with the inner walls of the insertion slots 221, so as to firmly fix the power inlet member 3 in the insertion slots 221, preventing the power inlet member 3 from loosening or falling off during use. When the plug-in fuse or relay is inserted into the insertion space 33 between the two power inlet pieces 31, depending on the setting that the limiting grooves 34 are clamped with the insertion slots 221, the risk of the power inlet member 3 moving is reduced. At the same time, the clamping of the limiting grooves 34 and the insertion slots 221 ensures the stability of the power inlet member 3 on the bus bar 2, and it can also maintain a good connection state under vibration or other external forces.

[0035] On the opposite sides of the two power inlet pieces 31, sliding-in guiding surfaces 35 are respectively provided. Between the upper ends of the sliding-in guiding surfaces 35 and the inner side walls of the limiting grooves 34, sliding-out guiding surfaces 36 are provided. Both the sliding-in guiding surfaces 35 and the sliding-out guiding surfaces 36 are inclined slopes, which facilitate the inner side walls of the insertion slots 221 to slide along them. The guiding forces exerted by the sliding-in guiding surfaces 35 and the sliding-out guiding surfaces 36 are opposite. The function of the sliding-in guiding surfaces 35 is to play a guiding role when the power inlet member 3 is inserted into the insertion slots 221, enabling the power inlet pieces 31 to smoothly enter the insertion slots 221. The sliding-out guiding surfaces 36 play an auxiliary role when the power inlet member 3 needs to be disassembled, making it easier to take out the power inlet member 3 from the insertion slots 221.

[0036] The distance between the two inner side walls of the insertion slots 221 facing the sliding-in guiding surfaces 35 is greater than the distance between the two power inlet pieces 31, and the distance between the two inner side walls of the insertion slots 221 facing the sliding-in guiding surfaces 35 is less than the distance between the connection fulcrums of the two sliding-in guiding surfaces 35 and the sliding-out guiding surfaces 36. Thus, when the power inlet member 3 is inserted into the bus bar 2, the two inner side walls of the insertion slots 221 can smoothly and press-fittingly slide past their connection fulcrums along the sliding-in guiding surfaces 35, making it more convenient to insert the power inlet member 3 into the insertion slots 221, improving the assembly efficiency, and at the same time ensuring the stability of the connection between the power inlet member 3 and the bus bar 2 by using the interference fit.

[0037] On the opposite sides of the two power inlet pieces 31 facing each other, arc-shaped contact bosses 37 in contact with the plug-in fuse and the relay are respectively provided. The arc-shaped contact bosses 37 can increase the contact area between the power inlet pieces 31 and the plug-in fuse and the relay, improving the electrical conductivity. The arc-shaped contact bosses 37 can be formed on the power inlet pieces 31 by processes such as stamping or casting. At the same time, the arc-shaped contact bosses 37 form a clamping force on the plug-in fuse and the relay, and when the vehicle vibrates, it can improve the stability of the connection between the plug-in fuse and the relay and the power inlet pieces 31, reducing the safety hazard of the two disengaging from the clamping connection.

[0038] As shown in the appendix Figure 2 and the appendix Figure 3As shown, the connecting piece 32 is rectangular in shape. The lower end of the connecting piece 32 is fixedly connected to the upper ends of the two power input pieces 31, and the lower side wall of the connecting piece 32 is flush with the inner side wall of the limiting groove 34. Thus, when the lower end of the power input member 3 passes through the slot 221 and is inserted into the power input seat 12, the lower side wall of the connecting piece 32 will abut against the power input connecting portion 22, thereby limiting the insertion depth of the power input member 3 and reducing the risk of the end of the power input member 3 penetrating out of the power input seat 12.

[0039] On the two inner side walls of the slot 221 communicating with the insertion space 33, guiding members 222 are respectively provided. At the upper end of the guiding member 222, a guiding inclined surface 223 for inserting the power input member 3 is provided. The guiding inclined surface 223 of the guiding member 222 further plays a guiding role when the power input member 3 is inserted into the slot 221, ensuring that the power input member 3 can be accurately inserted. Through the guidance of the guiding inclined surface 223, the power input member 3 can quickly and accurately complete the insertion with the slot 221. The guiding member 222 is made of a metal material and has a certain hardness and wear resistance.

[0040] The implementation principle of this embodiment is The staff inserts the power input member 3 along the direction of the slot 221 of the bus bar 2. The sliding guiding surfaces 35 on the opposite sides of the power input piece 31 come into contact with the inner side wall of the slot 221, guiding the power input member 3 to slide in smoothly. The inner side wall of the slot 221 slides along the sliding guiding surface 35 to the connection fulcrum position, and is initially fixed through interference fit. At the same time, the clamping and locking between the inner wall of the limiting groove 34 and the inner wall of the slot 221 is triggered to prevent the power input member 3 from loosening; The power input member 3 continues to extend downward, passes through the slot 221 of the bus bar 2, and then is inserted into the power input seat 12 of the fuse box body 1, and is connected to the external circuit through the through space of the power input seat 12 to complete power transmission. Embodiment

[0041] The second embodiment is an improvement based on the first embodiment. The other structures are the same as those of the first embodiment and will not be described in detail here.

[0042] As shown in the attached Figure 5 and attached Figure 6As shown in the figure, a fuse box further includes a positioning member 4. The positioning member 4 is clamped along the bus bar 2 and has a through guiding groove 41 opened in the direction of the fuse box body 1. The guiding groove 41 is aligned with two adjacent rows of jacks 11. A sliding inclined surface 42 is provided at the connection between the guiding groove 41 and the upper surface of the positioning member 4. A plugging member 5 that is clamped in the jack 11 is provided on the positioning member 4. Before installing the bus bar 2, first clamp the positioning member 4 in two adjacent rows of jacks 11 through the plugging member 5. Then, when installing the bus bar 2, the bus bar 2 sequentially passes through the sliding inclined surface 42, passes through the guiding groove 41 and is clamped between two adjacent rows of jacks 11 on the fuse box body 1. The positioning member 4 can assist in the plugging installation of the bus bar 2. Since there are multiple adjacent rows of jacks 11 on the fuse box body 1, when the bus bar 2 is installed and produced, the staff needs to determine the clamping position of the bus bar 2. Compared with directly clamping the positioning member 4 on the fuse box body 1, the installation of the positioning member 4 on the fuse box body 1 is more conspicuous and convenient, and thus the insertion and clamping of the bus bar 2 are smoother.

[0043] As shown in the attached Figure 7 and attached Figure 8 As shown in the figure, two moving cavities 43 are further opened in the positioning member 4 along the grooving direction of the guiding groove 41. Two plugging members 5 are respectively installed in the two moving cavities 43. The plugging member 5 includes a sleeve 51, a rotating member 52 and a sliding member 53. The sleeve 51 is fixed on the inner wall of the moving cavity 43, and a through spiral groove 511 is opened on the outer wall of the sleeve 51; the rotating member 52 slides along the radial direction of the sleeve 51 on the inner wall of the sleeve 51. One end of the rotating member 52 is located outside the positioning member 4, and the other end of the rotating member 52 is located inside the sleeve 51. A through sliding groove 521 is opened on the outer wall of the rotating member 52 along its own axis.

[0044] One end of the sliding member 53 is a sliding end 531 with a ring structure, and the sliding end 531 slides along the radial direction of the rotating member 52 on the inner wall of the rotating member 52. A sliding block 532 is fixed on the outer wall of the sliding end 531, and the sliding block 532 is located in the sliding groove 521 and the spiral groove 511. The other end of the sliding member 53 is a limiting end 533 with a sheet structure, and the limiting end 533 is clamped in the jack 11. The material of the limiting end 533 has a certain elastic deformation, and the limiting end 533 is semi-circular. An activity groove 45 communicated with the moving cavity 43 is further opened in the positioning member 4. When the limiting end 533 rises and falls, the activity groove 45 allows the limiting end 533 to perform spiral movement.

[0045] When the positioning member 4 is needed to assist in the installation of the bus bar 2, rotate the rotating member 52, and the limiting end 533 will spiral down to the lower part of the positioning member 4. One end of the two limiting ends 533 with convex surfaces abuts against two adjacent rows of jacks 11 respectively. The semi-circular limiting end 533 with elastic deformation can deform to a certain extent when inserted into the jack 11, and then return to its original state in the jack 11 to achieve firm clamping. After the bus bar 2 is clamped and installed, hold the positioning member 4 and pull it out, and the limiting end 533 will be pulled out of the jack 11.

[0046] As shown in the Figure 7 and Figure 9 figure, a power supply terminal 13 is provided on the fuse box body 1. A fixing groove 131 is formed on the inner wall of the power supply terminal 13. A fixing block 44 for being inserted and limited by the fixing groove 131 is provided on the outer wall of the positioning member 4. The cooperation of the fixing groove 131 and the fixing block 44 further strengthens the connection between the positioning member 4 and the fuse box body 1. And a through wire slot 46 is formed on one side of the positioning member 4 facing the power supply terminal 13. The slotting direction of the wire slot 46 is perpendicular to the slotting direction of the guiding slot 41, and the wire slot 46 is communicated with the guiding slot 41. After the positioning member 4 assists in the insertion of the bus bar 2, the positioning member 4 is removed from the fuse box body 1, and the fixing block 44 on the outer wall of the positioning member 4 is inserted into the fixing groove 131 on the inner wall of the power supply terminal 13 to achieve limiting. At the same time, rotate the rotating member 52, and the limiting end 533 will spiral up into the wire slot 46. Due to its own elastic material, the concave sides of the two semi-circular limiting ends 533 can clamp and limit the wires in the wire slot 46, thus playing a role in bundling the wires.

[0047] The implementation principle of this embodiment is The positioning member 4 assists in the installation of the bus bar 2. The positioning member 4 is inserted into two adjacent rows of jacks 11 of the fuse box body 1 through the connector 5. Rotate the rotating member 52 to make the elastic semi-circular limiting end 533 at the lower end of the sliding member 53 spiral down and clamp the jack 11 to fix the position of the positioning member 4. The bus bar 2 enters the guiding slot 41 along the sliding inclined surface 42 of the positioning member 4, and adjusts its posture through the cooperation of the guiding slot 41 and the sliding inclined surface 42, and finally is clamped between the adjacent jacks 11 of the fuse box body 1 to ensure the installation accuracy and efficiency.

[0048] The positioning member 4 is installed to the power supply terminal 13 for bundling the wires. After the bus bar 2 is installed, pull out the positioning member 4, and the connector 5 is separated from the jack 11. Move the positioning member 4 to the power supply terminal 13, and insert the fixing block 44 on the outer wall of the positioning member 4 into the fixing groove 131 on the inner wall of the power supply terminal 13 to achieve secondary limiting of the positioning member 4 and the fuse box body 1. Rotate the rotating member 52 to make the limiting end 533 of the sliding member 53 spiral up into the wire slot 46 of the positioning member 4, and use the deformation ability of the elastic semi-circular limiting end 533 to clamp the wires to achieve wire bundling and fixation, and avoid wire loosening.

[0049] This specific embodiment is only an interpretation of the present application and does not limit the present application. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope claimed by the present application, it is protected by the patent law.

Claims

1. An insurance box, comprising an insurance box body (1) and a bus bar (2) clamped in the insurance box body (1), characterized in that, The bus bar (2) is provided with a fuse socket part (21) and a power input connection part (22). The power input connection part (22) is provided with a slot (221) along the clamping direction of the bus bar (2); further included is a power input component (3) inserted into the slot (221). The fuse box body (1) is provided with a power input seat (12). The power input seat (12) is provided with a plugging cavity (121) that penetrates and communicates with the fuse box body (1), and the power input component (3) sequentially passes through the slot (221) and is inserted into the plugging cavity (121). The power input component (3) includes two opposed power input pieces (31). A plugging space (33) for plugging in a blade fuse and a relay is formed between the two power input pieces (31). Limiting grooves (34) are respectively formed on the opposite sides of the two power input pieces (31), and the inner walls of the limiting grooves (34) are clamped with the inner walls of the slot (221).

2. An insurance box according to claim 1, characterized in that, Arc contact bosses (37) in contact with the blade fuse and the relay are respectively arranged on the opposed sides of the two power input pieces (31).

3. The fuse box according to claim 1, characterized in that, The power input component (3) includes a connecting piece (32) connecting the upper ends of the two power input pieces (31). The lower side wall of the connecting piece (32) is flush with the inner side wall of the limiting groove (34).

4. An insurance box according to claim 1, characterized in that, Sliding-in guiding surfaces (35) are respectively arranged on the opposite sides of the two power input pieces (31). The upper ends of the sliding-in guiding surfaces (35) are connected with the inner side walls of the limiting grooves (34), and the two inner side walls of the slot (221) respectively pass over the fulcrums of the two sliding-in guiding surfaces (35) by interference fit.

5. An insurance box according to claim 4, characterized in that, A sliding-out guiding surface (36) is arranged between the upper ends of the sliding-in guiding surfaces (35) and the inner side walls of the limiting grooves (34).

6. The fuse box according to claim 1, wherein, Guiding components (222) are respectively arranged on the two inner side walls of the slot (221) communicating with the plugging space (33). A guiding inclined surface (223) for plugging in the power input component (3) is arranged at the upper end of the guiding component (222).

7. An insurance box according to claim 1, characterized in that, Further included is a positioning component (4). A plurality of jacks (11) are formed on the fuse box body (1). The positioning component (4) is provided with a plugging component (5) clamped in the jacks (11). The positioning component (4) is further provided with a through guiding groove (41) along the direction of clamping the bus bar (2) to the fuse box body (1). A sliding inclined surface (42) is arranged at the connection between the guiding groove (41) and the upper surface of the positioning component (4), and the bus bar (2) passes through the sliding inclined surface (42), passes through the guiding groove (41) and is clamped on the fuse box body (1).

8. An insurance box according to claim 7, characterized in that, The positioning member (4) is further provided with a movable cavity (43) along the slotting direction of the guiding slot (41). The plug-in member (5) includes a sleeve (51), a rotating member (52) and a sliding member (53). The sleeve (51) is fixed on the inner wall of the movable cavity (43), and a through spiral groove (511) is formed on the outer wall of the sleeve (51); the rotating member (52) slides along the radial direction of the sleeve (51) on the inner wall of the sleeve (51), and a through sliding groove (521) is formed on the outer wall of the rotating member (52) along its own axial direction; one end of the sliding member (53) slides along the radial direction of the rotating member (52) on the inner wall of the rotating member (52), a sliding block (532) is arranged on the outer wall of the sliding member (53) at one end located inside the rotating member (52), the sliding block (532) is located in the sliding groove (521) and the spiral groove (511), and the other end of the sliding member (53) is provided with a limiting end (533) clamped in the jack (11), and an activity groove (45) for the limiting end (533) to move is arranged in the positioning member (4).

9. An insurance box according to claim 8, characterized in that, The material of the limiting end (533) has elastic deformation, and the limiting end (533) is semi-circular.

10. An insurance box according to claim 9, characterized in that, A power supply terminal (13) is arranged on the fuse box body (1), a fixing groove (131) is formed on the inner wall of the power supply terminal (13), a fixing block (44) for being inserted and limited with the fixing groove (131) is arranged on the outer wall of the positioning member (4), and a through wire slot (46) is formed on one side of the positioning member (4) facing the power supply terminal (13), and the slotting direction of the wire slot (46) is perpendicular to the slotting direction of the guiding slot (41).

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