A safety box

Abstract

The application discloses an insurance box, comprising an insurance box body, a busbar clamped in the insurance box body, a fuse plug-in part and an electricity inlet connecting part being arranged on the busbar, and a slot being opened on the electricity inlet connecting part along the clamping direction of the busbar; further comprising an electricity inlet part inserted into the slot, an electricity inlet seat being arranged on the insurance box body, the electricity inlet seat being provided with a plug-in cavity penetrating through the insurance box body, and the electricity inlet part sequentially penetrating through the slot and being inserted into the plug-in cavity; the electricity inlet part comprising two opposite electricity inlet sheets, an insertion space being formed between the two electricity inlet sheets for inserting a blade fuse and a relay, a limiting slot being respectively opened on the side of the two electricity inlet sheets opposite to each other, and the inner wall of the limiting slot being clamped with the inner wall of the slot; a new electricity inlet part is inserted into the slot on the electricity inlet connecting part, the slot on the busbar and the electricity inlet part are plugged, and the electricity inlet part is plugged with the electricity inlet seat, so that the traditional welding or riveting is replaced, and the installation is more convenient and efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fuse boxes, in particular to a fuse box. BACKGROUND

[0002] In the field of automobiles, the stability and safety of the power system are of great importance. The automobile power supply fuse box assembly, as a key component for protecting various electrical branches of the automobile, is of great significance to ensuring the normal operation of the automobile electrical system. It can effectively protect the rated current carried in each electrical branch of the automobile within a safe range, avoid damage to electrical components or even fire caused by excessive load or line short circuit, and ensure the safe and reliable operation of the entire vehicle electrical components.

[0003] At present, the conventional structure of the automobile power supply fuse box assembly in the industry generally includes a box body, a conductive sheet arranged in the box body, a plug-in terminal, a fuse, and a relay. When a new electrical branch needs to be added, the traditional method is usually to weld or rivet a new connection conductive sheet on the conductive sheet in the fuse box to cope with the increase in the electrical branch.

[0004] However, these existing technical means have obvious defects. The welding or riveting of a new connection conductive sheet is a tedious and inefficient installation process that requires professional tools and technical personnel to operate, consuming a lot of time and labor costs. Moreover, once the new connection conductive sheet is installed, it is not convenient to disassemble and replace it, making subsequent maintenance difficult. In particular, when a short electrical branch is added, the installation efficiency of welding or riveting will be further reduced due to limited operating space and increased process difficulty. 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 upgrading of the automobile electrical system. SUMMARY

[0005] To facilitate the addition of a new electrical branch in the fuse box, a fuse box is provided.

[0006] The above application purpose of the present application is achieved by the following technical scheme:

[0007] A fuse box includes a fuse box body and a busbar clamped in the fuse box body. The busbar is provided with a fuse plug-in part and an incoming power connection part. The incoming power connection part is provided with a slot along the clamping direction of the busbar. The fuse box further includes an incoming power piece plugged into the slot. The fuse box body is provided with an incoming power seat. The incoming power seat is provided with a plug-in cavity that penetrates through the fuse box body. The incoming power piece passes through the slot and is plugged into the plug-in cavity in sequence.

[0008] The power input part comprises two opposite power input sheets, and a plug-in space for plug-in fuses and relay plugs is formed between the two power input sheets.

[0009] By using the above technical scheme, when a shorter power branch needs to be added, only the new power input part needs to be inserted into the plug-in slot on the power input connection part, the inner wall of the self-limiting slot of the power input part is clamped with the inner wall of the plug-in slot to realize electrical connection with the busbar, ensuring stable installation of the power input part, the plug-in space formed between the two power input sheets can be used for plug-in fuses and relay plugs, and the plug-in of the power input part with the plug-in slot on the busbar and the plug-in of the power input part with the power input seat are used to replace the traditional welding or riveting, so that the installation is more convenient and efficient, and the time spent on adding a new branch is reduced.

[0010] Preferably, the opposite side of the two power input sheets is respectively provided with an arc-shaped contact boss in contact with the plug-in fuse and the relay.

[0011] By using the above technical scheme, the arc-shaped contact boss provided on the opposite side of the two power input sheets is in contact with the plug-in fuse and the relay, which can increase the contact area and form a clamping force on the plug-in fuse and the relay. When the car shakes, the stability of the plug-in fuse and the relay inserted into the power input sheet can be improved, the security risk of the disengagement of the two is reduced, the stable power supply of the automobile electrical system is ensured, and the safe and reliable operation of the vehicle electrical components is ensured.

[0012] Preferably, the power input part comprises a connecting sheet connected to the upper ends of the two power input sheets, and the lower side wall of the connecting sheet is flush with the inner side wall of the limiting slot.

[0013] By using the above technical scheme, when the power input part is sequentially inserted into the plug-in slot and the power input seat, the lower side wall of the connecting sheet will abut against the power input connection part, thereby limiting the depth of the power input part inserted, and reducing the risk of the end of the power input part passing through the power input seat on the other side of the fuse box body.

[0014] Preferably, the opposite side of the two power input sheets is respectively provided with a sliding guide surface, the upper end of the sliding guide surface is connected with the inner side wall of the limiting slot, and the two inner side walls of the plug-in slot are respectively in interference fit with the fulcrums of the two sliding guide surfaces.

[0015] By using the above technical scheme, when the busbar and the power input part are assembled, the two inner side walls of the plug-in slot can smoothly slide along the sliding guide surface and pass through the fulcrums thereof, so that the power input part can be more conveniently inserted into the plug-in slot, and the assembly efficiency is improved. At the same time, the interference fit ensures the stability of the connection between the power input part and the busbar, thereby ensuring the stability of the circuit connection of the fuse box, which helps to ensure the normal operation of the automobile electrical system and avoid damage to electrical components and even cause a fire due to unstable connection.

[0016] Preferably, the upper end of the sliding-in guide surface is provided between the inner side wall of the limiting groove and the sliding-out guide surface.

[0017] By adopting the above technical scheme, the sliding-out guide surface facilitates the sliding-out of the power input component from the insertion slot, improves the convenience of disassembly and assembly of the power input component, and solves the problem of inconvenient disassembly and replacement and difficult maintenance after adding the power branch in the prior art.

[0018] Preferably, the two inner side walls of the insertion slot communicating with the insertion space are respectively provided with guide members, and the upper end of the guide member is provided with a guide inclined surface for the insertion of the power input component.

[0019] By adopting the above technical scheme, the two inner side walls of the insertion slot are provided with guide members, and the upper end of the guide member is provided with a guide inclined surface, which can play a guiding role when the power input component is inserted into the insertion slot, so that the power input component is more smoothly and accurately inserted, and the installation efficiency is improved.

[0020] Preferably, the fuse box body is further provided with a plurality of insertion holes, the positioning member is provided with an insertion member for clamping in the insertion hole, and the fuse box body is further provided with a through guide groove in the direction of clamping the bus bar, the guide groove is provided with a sliding inclined surface at the connection position with the upper surface of the positioning member, and the bus bar passes through the sliding inclined surface, the guide groove and is clamped on the fuse box body.

[0021] By adopting the above technical scheme, the insertion holes are arranged on the fuse box body, the insertion member of the positioning member is clamped in the insertion hole, the positioning member is connected and fixed on the fuse box body, and the positioning member is clamped on the fuse box body before the installation of the bus bar. The guide groove on the positioning member is provided with a sliding inclined surface at the connection position with the upper surface, so that the bus bar can smoothly pass through the guide groove along the sliding inclined surface, and then is clamped on the fuse box body. This not only facilitates the installation of the bus bar and improves the installation efficiency, but also ensures the accurate installation of the bus bar.

[0022] Preferably, the positioning member is further provided with a movable cavity in the slotting direction of the guide groove, the insertion member includes a sleeve, a rotating member and a sliding member, the sleeve is fixed on the inner wall of the movable cavity, and the outer wall of the sleeve is provided with a through spiral groove; the rotating member slides in the inner wall of the sleeve in the radial direction of the sleeve, the outer wall of the rotating member is provided with a through sliding groove in the axial direction of the rotating member; one end of the sliding member slides in the inner wall of the rotating member in the radial direction of the rotating member, the outer wall of one end of the sliding member located in the rotating member is provided with a sliding block, 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 insertion hole, and the positioning member is provided with a movable groove for the movement of the limiting end.

[0023] By adopting the technical scheme, the positioning member can assist the busbar to be clamped to the fuse box body, and the plug-in part 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, the sliding groove can drive the matched part to rotate and ascend or descend in the spiral groove of the sleeve, the limiting end at the lower end of the sliding member is correspondingly rotated and ascended or descended, and the limiting end is more flexibly and stably clamped in the jack of the fuse box body.

[0024] Preferably, the limiting end is made of elastic material and is semi-annular.

[0025] By adopting the technical scheme, the limiting end is made of elastic material and is semi-annular, can be elastically deformed to be smoothly inserted into the jack of the fuse box body, and is restored to the original shape after being inserted to be firmly clamped in the jack, so that the connection between the positioning member and the fuse box body is stable, the positioning and installation of the busbar are facilitated, the positioning member can be elastically deformed to be taken out when being disassembled later, and the installation, maintenance and replacement of the positioning member are facilitated.

[0026] Preferably, the fuse box body is provided with a power supply terminal, a fixing groove is formed in the inner wall of the power supply terminal, a fixing block is arranged on the outer wall of the positioning member for limiting the insertion of the fixing groove, and a wire bundling groove is formed in the side of the positioning member facing the power supply terminal.

[0027] By adopting the technical scheme, when the plug-in of the busbar is completed with the assistance of the positioning member, the positioning member is dismounted from the fuse box body, is inserted into the fixing block on the outer wall of the positioning member through the fixing groove in the inner wall of the power supply terminal to be limited, and the limiting end is spirally ascended into the wire bundling groove by rotating the rotating member. Due to the elastic material of the limiting end, the limiting end can limit the wires in the wire bundling groove, thereby playing a wire bundling role.

[0028] In summary, the present application has at least one of the following beneficial technical effects:

[0029] 1. A new power input member is inserted into the insertion slot on the power input connection part, the inner wall of the self-limiting groove of the power input member is clamped with the inner wall of the insertion slot and realizes electrical connection with the busbar, and the insertion space formed between the two power input pieces can be used for plug-in type fuse and relay. By using the insertion of the insertion slot on the busbar and the power input member and the insertion of the power input member and the power input seat, the traditional welding or riveting is replaced, the installation is more convenient and efficient, and the time spent for adding new branches is reduced.

[0030] 2. The positioning member is clamped on the fuse box body before the busbar is installed, the positioning member is provided with a guide groove and a sliding slope at the connection between the guide groove and the upper surface, so that the busbar can smoothly pass through the guide groove through the sliding slope and be clamped on the fuse box body, facilitating the installation of the busbar, improving the installation efficiency, and ensuring accurate installation of the busbar in place;

[0031] 3. The positioning member is inserted into the fixing block through the fixing slot to realize limiting, and the limiting end is screwed up into the wire bundling groove by rotating the rotating member, the limiting end can limit the wires in the wire bundling groove due to the elastic material of the limiting end, and the wire bundling effect is achieved;

[0032] 4. The power inlet member is convenient to disassemble, replace and maintain, and is convenient to adjust the power supply branch or maintain the conductive sheet, which is beneficial to the maintenance and upgrading of the automobile electrical system. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic view of a fuse box embodiment one;

[0034] Figure 2 It is an explosion schematic view of the busbar, the power inlet seat and the power inlet member;

[0035] Figure 3 It is an explosion schematic view of the busbar and the power inlet member;

[0036] Figure 4 It is a structural schematic view of the power inlet member;

[0037] Figure 5 It is a sectional view of the positioning member clamped in the jack;

[0038] Figure 6 It is Figure 5 It is a local enlarged view at A;

[0039] Figure 7 It is an explosion schematic view between the positioning member and the plug-in member;

[0040] Figure 8 It is an explosion schematic view of the plug-in member;

[0041] Figure 9 It is a sectional view of the positioning member clamped on the power supply terminal.

[0042] Label: 1, the safety box body; 11, the jack; 12, the power inlet; 121, the plug-in cavity; 13, the power terminal; 131, the fixed groove; 2, the busbar; 21, the fuse plug-in part; 211, the plug-in piece; 2111, the contact piece; 2112, the contact space; 2113, the contact protrusion; 22, the power inlet connecting part; 221, the insertion slot; 222, the guide; 223, the guide slope; 3, the power inlet piece; 31, the power inlet piece; 32, the connecting piece; 33, the plug-in space; 34, the limiting groove; 35, the sliding guide surface; 36, the sliding guide surface; 37, the arc contact boss; 4, the positioning piece; 41, the guide groove; 42, the sliding slope; 43, the movable cavity; 44, the fixed block; 45, the movable slot; 46, the wire binding groove; 5, the plug-in piece; 51, the sleeve; 511, the spiral groove; 52, the rotating piece; 521, the sliding slot; 53, the sliding piece; 531, the sliding end; 532, the sliding block; 533, the limiting end. DETAILED DESCRIPTION

[0043] Further details are described below in conjunction with the accompanying drawings: EMBODIMENT

[0044] As shown in the accompanying drawings Figure 1 and accompanying drawings Figure 2 A safety box includes a safety box body 1 and a busbar 2. The safety box body 1 has multiple rows of jacks 11 for plugging external circuits. The jacks 11 in the same row are relatively parallel. The busbar 2 is a conductive metal sheet. The busbar 2 is clamped and installed between two adjacent rows of jacks 11. The busbar 2 is provided with a fuse plug-in part 21 and a power inlet connecting part 22.

[0045] The fuse plug-in part 21 is fixed with multiple plug-in pieces 211 arranged uniformly at intervals. The plug-in piece 211 includes two opposite contact pieces 2111. The two opposite contact pieces 2111 form a contact space 2112 for plugging in a plug-in type fuse. The two contact pieces 2111 are respectively fixed with relatively parallel contact protrusions 2113 on the opposite sides. The stability of plugging in the plug-in type fuse and the contact pieces 2111 is improved. The security risk of disengaging the clamping is reduced.

[0046] The power inlet connecting part 22 is vertically fixed on the side wall of the busbar 2. The power inlet connecting part 22 is provided with an insertion slot 221 along the clamping direction of the busbar 2. The power inlet piece 3 is inserted into the insertion slot 221. The safety box body 1 is provided with a power inlet seat 12 for plugging in the lower end of the power inlet piece 3. The power inlet seat 12 is hollow inside. The power inlet seat 12 is provided with a plug-in cavity 121 penetrating through the other side of the safety box body 1. The power inlet piece 3 sequentially passes through the insertion slot 221 and is inserted into the plug-in cavity 121. The power transmission and distribution are realized. The connection and management of the power supply branch are facilitated. Compared with the traditional welding or riveting new connection conductive sheet mode, the disassembly and assembly work efficiency is greatly improved.

[0047] As shown in the accompanying drawings Figure 3 and the accompanying drawings Figure 4 As shown in the accompanying drawings The two incoming pieces 31 are oppositely provided with limiting grooves 34, the limiting grooves 34 are rectangular, and the inner walls of the limiting grooves 34 are clamped with the inner walls of the insertion grooves 221, so that the incoming piece 3 is stably fixed in the insertion groove 221, preventing the incoming piece 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 incoming pieces 31, the clamping of the limiting grooves 34 and the insertion grooves 221 reduces the risk of movement of the incoming piece 3, while the clamping of the limiting grooves 34 and the insertion grooves 221 also ensures the stability of the incoming piece 3 on the busbar 2, and maintains a good connection state under the action of vibration or other external forces.

[0048] The two incoming pieces 31 are oppositely provided with limiting grooves 34, the limiting grooves 34 are rectangular, and the inner walls of the limiting grooves 34 are clamped with the inner walls of the insertion grooves 221, so that the incoming piece 3 is stably fixed in the insertion groove 221, preventing the incoming piece 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 incoming pieces 31, the clamping of the limiting grooves 34 and the insertion grooves 221 reduces the risk of movement of the incoming piece 3, while the clamping of the limiting grooves 34 and the insertion grooves 221 also ensures the stability of the incoming piece 3 on the busbar 2, and maintains a good connection state under the action of vibration or other external forces.

[0049] The two incoming pieces 31 are oppositely provided with limiting grooves 34, the limiting grooves 34 are rectangular, and the inner walls of the limiting grooves 34 are clamped with the inner walls of the insertion grooves 221, so that the incoming piece 3 is stably fixed in the insertion groove 221, preventing the incoming piece 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 incoming pieces 31, the clamping of the limiting grooves 34 and the insertion grooves 221 reduces the risk of movement of the incoming piece 3, while the clamping of the limiting grooves 34 and the insertion grooves 221 also ensures the stability of the incoming piece 3 on the busbar 2, and maintains a good connection state under the action of vibration or other external forces.

[0050] The two incoming pieces 31 are oppositely provided with limiting grooves 34, the limiting grooves 34 are rectangular, and the inner walls of the limiting grooves 34 are clamped with the inner walls of the insertion grooves 221, so that the incoming piece 3 is stably fixed in the insertion groove 221, preventing the incoming piece 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 incoming pieces 31, the clamping of the limiting grooves 34 and the insertion grooves 221 reduces the risk of movement of the incoming piece 3, while the clamping of the limiting grooves 34 and the insertion grooves 221 also ensures the stability of the incoming piece 3 on the busbar 2, and maintains a good connection state under the action of vibration or other external forces.

[0051] Two sides of the two incoming pieces 31 are provided with arc-shaped contact bosses 37 in contact with the plug-in fuse and the relay, which can increase the contact area of the incoming piece 31 with the plug-in fuse and the relay, improve the conductivity, and the arc-shaped contact bosses 37 can be formed on the incoming piece 31 by stamping or casting process, and the arc-shaped contact bosses 37 form a clamping force on the plug-in fuse and the relay, which can improve the stability of the plug-in fuse and the relay and the incoming piece 31 in the shock of the car, and reduce the security risks of the two.

[0052] As shown in the accompanying Figure 2 and the accompanying Figure 3 The connecting piece 32 is rectangular in shape, the lower end of the connecting piece 32 is fixedly connected with the upper end of the two incoming pieces 31, and the lower side wall of the connecting piece 32 is flush with the inner side wall of the limiting groove 34, so that when the incoming piece 3 passes through the insertion slot 221 and is inserted into the incoming seat 12, the lower side wall of the connecting piece 32 will abut against the incoming connection part 22, thereby limiting the depth of the incoming piece 3, and reducing the risk of the end of the incoming piece 3 penetrating out of the incoming seat 12.

[0053] The insertion slot 221 is provided with a guide 222 on the two inner side walls of the insertion space 33, and the upper end of the guide 222 is provided with a guide inclined surface 223 for the insertion of the incoming piece 3. The guide inclined surface 223 of the guide 222 further plays a guiding role when the incoming piece 3 is inserted into the insertion slot 221, ensuring that the incoming piece 3 can be accurately inserted. Through the guidance of the guide inclined surface 223, the incoming piece 3 can be quickly and accurately inserted into the insertion slot 221. The guide 222 is made of metal material and has certain hardness and wear resistance.

[0054] The implementation principle of the embodiment is

[0055] The worker inserts the incoming piece 3 along the insertion slot 221 of the busbar 2, the sliding guide surface 35 on the side opposite to the incoming piece 31 contacts the inner side wall of the insertion slot 221, guiding the incoming piece 3 to smoothly slide in, and the inner side wall of the insertion slot 221 slides along the sliding guide surface 35 to the connecting branch point position, and is preliminarily fixed through interference fit, and at the same time triggers the clamping and locking of the inner wall of the limiting groove 34 and the inner wall of the insertion slot 221, preventing the incoming piece 3 from loosening.

[0056] The incoming piece 3 continues to extend downward, passes through the insertion slot 221 of the busbar 2, and is inserted into the incoming seat 12 of the fuse box body 1, and is in communication with the external circuit through the penetration space of the incoming seat 12, and completes the power transmission. Embodiment

[0057] The second embodiment is improved on the basis of the first embodiment, and other structures are consistent with those of the first embodiment, which will not be described here.

[0058] As shown in the accompanyingFigure 5 and attached Figure 6 As shown in the attached Before the busbar 2 is installed, the positioning member 4 is first clamped in the two adjacent insertion holes 11 through the plug-in member 5, and then when the busbar 2 is installed, the busbar 2 passes through the sliding slope 42, passes through the guide groove 41 and is clamped between the two adjacent insertion holes 11 on the fuse box body 1. The positioning member 4 can assist the busbar 2 in plug-in installation. Since the fuse box body 1 is provided with a plurality of adjacent insertion holes 11, the staff needs to determine the position of the busbar 2 during the installation of the busbar 2. Compared with the positioning member 4 directly clamped 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 the plug-in clamping of the busbar 2 is smoother.

[0059] As shown in the attached Figure 7 and attached Figure 8 As shown in the attached The positioning member 4 is further provided with two movable cavities 43 along the slotting direction of the guide groove 41, and two plug-in members 5 are respectively installed in the two movable cavities 43. The plug-in member 5 comprises a sleeve 51, a rotating member 52 and a sliding member 53. The sleeve 51 is fixed to 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. 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 formed on the outer wall of the rotating member 52 along the axial direction of the rotating member 52.

[0060] One end of the sliding member 53 is a sliding end 531 with a ring structure, which 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 to 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, which is clamped in the insertion hole 11. The limiting end 533 has a certain elastic deformation, and the limiting end 533 is a semi-ring. The positioning member 4 is further provided with a movable groove 45 which is in communication with the movable cavity 43. When the limiting end 533 rises and falls, the movable groove 45 provides the limiting end 533 with spiral movement.

[0061] When the busbar 2 needs to be installed with the aid of the positioning member 4, the rotating member 52 is rotated, the limiting end 533 is spirally lowered below the positioning member 4, and the ends with convex surfaces of the two limiting ends 533 abut against the two rows of adjacent insertion holes 11 respectively. The elastically deformed semi-annular limiting end 533 can be deformed to a certain extent when inserted into the insertion hole 11, and then restored to the original state in the insertion hole 11, thereby achieving firm clamping. After the busbar 2 is clamped, the positioning member 4 is pulled out, and the limiting end 533 is pulled out of the insertion hole 11.

[0062] As shown in the accompanying drawings Figure 7 and the accompanying drawings Figure 9 As shown in the accompanying drawings, the power connection end 13 is provided on the safe box body 1, a fixing groove 131 is formed in the inner wall of the power connection end 13, and a fixing block 44 is provided on the outer wall of the positioning member 4 for limiting insertion of the fixing groove 131. The cooperation of the fixing groove 131 and the fixing block 44 further strengthens the connection between the positioning member 4 and the safe box body 1. A wire bundling groove 46 is formed in the side of the positioning member 4 facing the power connection end 13, and the wire bundling groove 46 is perpendicular to the direction of the guiding groove 41. The wire bundling groove 46 is in communication with the guiding groove 41. After the busbar 2 is clamped with the aid of the positioning member 4, the positioning member 4 is removed from the safe box body 1, and the fixing block 44 on the outer wall of the positioning member 4 is inserted into the fixing groove 131 in the inner wall of the power connection end 13 to achieve limiting. At the same time, the rotating member 52 is rotated, and the limiting end 533 is spirally raised into the wire bundling groove 46. Due to the elastic material of the limiting end 533, the side with concave surfaces of the two semi-annular limiting ends 533 can clamp and limit the wires in the wire bundling groove 46, thereby playing a role of wire bundling.

[0063] The implementation principle of the embodiment is

[0064] The positioning member 4 assists in installation of the busbar 2. The positioning member 4 is clamped into the two rows of adjacent insertion holes 11 of the safe box body 1 through the insertion member 5. The rotating member 52 is rotated to spirally lower the elastic semi-annular limiting end 533 at the lower end of the sliding member 53 and clamp the insertion hole 11, thereby fixing the position of the positioning member 4. The busbar 2 enters the guiding groove 41 along the sliding slope 42 of the positioning member 4. The posture is adjusted through the cooperation of the guiding groove 41 and the sliding slope 42, and finally clamped between the adjacent insertion holes 11 of the safe box body 1, thereby ensuring installation precision and efficiency.

[0065] The positioning member 4 is installed to the power terminal 13, after the busbar 2 is installed, the positioning member 4 is pulled out, the plug-in member 5 is separated from the plug hole 11, the positioning member 4 is moved to the power terminal 13, the fixed groove 131 in the inner wall of the power terminal 13 is inserted into the fixed block 44 of the outer wall of the positioning member 4, the secondary limiting of the positioning member 4 and the safety box body 1 is realized, the rotating member 52 is rotated, the limiting end 533 of the sliding member 53 is spirally raised into the wire slot 46 of the positioning member 4, the wire is clamped by using the deformation ability of the elastic semi-ring limiting end 533, the wire fixing is realized, and the wire is prevented from being loose.

[0066] The specific embodiment is only an explanation of the application, and is not a limitation of the application. Those skilled in the art can make modifications to the embodiment without creative contribution according to the needs after reading the specification, and the application is protected by the patent law as long as it is within the scope claimed by the application.

Claims

1. A safety box comprising a safety box body (1), a busbar (2) fitted in the safety box body (1), characterized in that, The fuse plug-in part (21) and the power input connecting part (22) are arranged on the busbar (2), the power input connecting part (22) is provided with a slot (221) along the direction of the busbar (2) clamping, and the power input part (3) is plugged into the slot (221). The power input part (3) includes two opposite power input sheets (31), the two power input sheets (31) form a plug-in space (33) for plug-in fuse or relay, the opposite side of the two power input sheets (31) is respectively provided with a limiting slot (34), and the inner wall of the limiting slot (34) is clamped with the inner wall of the slot (221). The positioning part (4) is further provided with a plug-in part (5) clamped in the insertion hole (11), the guiding groove (41) is further provided on the positioning part (4) along the direction of the busbar (2) clamped in the fuse box body (1), the guiding groove (41) is provided with a sliding inclined surface (42) at the connection position between the guiding groove (41) and the upper surface of the positioning part (4), and the busbar (2) passes through the sliding inclined surface (42) and the guiding groove (41) and is clamped on the fuse box body (1).

2. A safety box according to claim 1, characterized in that The opposite side of the two power input sheets (31) is respectively provided with an arc-shaped contact boss (37) in contact with the plug-in fuse or relay.

3. A safety box according to claim 1, characterized in that The power input part (3) includes a connecting sheet (32) connected to the upper end of the two power input sheets (31), and the lower side wall of the connecting sheet (32) is flush with the inner side wall of the limiting slot (34).

4. A safety box according to claim 1, characterized in that The opposite side of the two power input sheets (31) is respectively provided with a sliding guide surface (35), the upper end of the sliding guide surface (35) is connected with the inner side wall of the limiting slot (34), and the two inner side walls of the slot (221) respectively pass through the fulcrums of the two sliding guide surfaces (35).

5. A safety box according to claim 4, characterized in that The upper end of the sliding guide surface (35) and the inner side wall of the limiting slot (34) are provided with a sliding guide surface (36).

6. A safety box according to claim 1, characterized in that The two inner side walls of the slot (221) are respectively provided with a guide part (222) connected with the plug-in space (33), and the upper end of the guide part (222) is provided with a guide inclined surface (223) for the plug-in of the power input part (3).

7. A safety box according to claim 1, characterized in that The positioning member (4) is further provided with a movable cavity (43) along the slotting direction of the guide slot (41), the plug-in member (5) comprises 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), the outer wall of the sleeve (51) is provided with a through helical groove (511); the rotating member (52) is slidably arranged on the inner wall of the sleeve (51) along the radial direction of the sleeve (51), the outer wall of the rotating member (52) is provided with a through sliding groove (521) along the axial direction of the rotating member (52); one end of the sliding member (53) is slidably arranged on the inner wall of the rotating member (52) along the radial direction of the rotating member (52), the outer wall of one end of the sliding member (53) located in the rotating member (52) is provided with a sliding block (532), the sliding block (532) is located in the sliding groove (521) and the helical groove (511), the other end of the sliding member (53) is provided with a limiting end (533) which is clamped in the plug hole (11), the positioning member (4) is provided with a movable slot (45) for the movement of the limiting end (533).

8. A safety box according to claim 7, characterized in that The limiting end (533) is made of elastic material, and the limiting end (533) is semi-annular.

9. A safety box according to claim 8, characterized in that The power connection end (13) is provided on the safety box body (1), the inner wall of the power connection end (13) is provided with a fixing groove (131), the outer wall of the positioning member (4) is provided with a fixing block (44) for limiting the plug-in of the fixing groove (131), and the side of the positioning member (4) facing the power connection end (13) is provided with a through wire bundling groove (46), the slotting direction of the wire bundling groove (46) is perpendicular to the slotting direction of the guide slot (41).

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