An electrical box

Abstract

The utility model relates to an electric appliance box belongs to the field of automobile engine, including the upper shell, PCB board and lower shell that set from top to bottom in proper order, be equipped with the limit hole on the lower shell, be connected with the busbar on the limit hole, be equipped with the combination type connector that is connected with the PCB board on the lower shell, the side of PCB board is away from combination type connector staggered distribution has terminal, resistance and miniaturized relay, be equipped with with terminal connection's miniaturized fuse in the upper shell, the side of lower shell near busbar is equipped with the side plate. The utility model sets up miniaturized fuse on the upper shell, sets up miniaturized relay and the terminal connected with miniaturized fuse on the PCB board, sets up combination type connector on the lower shell, connects busbar on the PCB board and lower shell, reduces the volume and weight of electric appliance box, reduces the cost, also reduces the space occupation, to this satisfies the space demand of whole car arrangement.

Description

Technical Field

[0001] This utility model belongs to the field of automobile engines, and specifically relates to an electrical box. Background Technology

[0002] The main function of the electrical box is to rationally distribute the vehicle's power supply and match the wiring harness to achieve the goals of vehicle power safety and cost-effectiveness. The electrical box is the carrier of power transmission, using relays to control small currents to large currents and fuses to provide overvoltage and overcurrent protection for the circuit.

[0003] As vehicle configurations become increasingly sophisticated, the number and types of electrical appliances also increase, leading to a need to continuously expand the functionality of electrical boxes. This results in larger and larger boxes that occupy more space and are more expensive, failing to meet the space requirements for vehicle layout and cost control. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides an electrical box, comprising an upper shell, a PCB board, and a lower shell arranged sequentially from top to bottom. The lower shell has a limiting hole, and a busbar is connected to the limiting hole. The lower shell has a combination connector connected to the PCB board. Terminals, resistors, and miniaturized relays are staggered on the side of the PCB board away from the combination connector. A miniaturized fuse connected to the terminals is located inside the upper shell. A side plate is located on the side of the lower shell near the busbar. A MIDI fuse is located on the busbar, and the end of the MIDI fuse away from the busbar is connected to the side plate.

[0005] Furthermore, the busbar includes a main connecting bar, with support bars on both sides of the main connecting bar, and an extension bar at the end of the support bar away from the main connecting bar. The main connecting bar is connected to a connecting hole, and a MIDI fuse is provided on the extension bar.

[0006] Furthermore, the upper housing is provided with a limiting groove, and a miniaturized fuse is inserted into the limiting groove.

[0007] Furthermore, the lower housing is provided with a connecting platform, the connecting platform is provided with a limiting hole, the PCB board is provided with a connecting groove, the connecting groove is provided with a connecting hole, and a first fastener is provided in the limiting hole through the connecting hole, the first fastener being connected to the busbar.

[0008] Furthermore, the upper housing is provided with a disassembly groove that communicates with the connecting groove.

[0009] Furthermore, a limiting block is provided on the wall of the disassembly and assembly slot, and the limiting block contacts the busbar.

[0010] Furthermore, the upper housing is provided with a cover, and the MIDI fuse is housed within the cover.

[0011] Furthermore, the cover is provided with a locking hole, and the upper shell is provided with a locking plate, which is locked in the locking hole.

[0012] Furthermore, the combined connector includes a connector plate and a plurality of connector slots, wherein the plurality of connector slots are distributed sequentially along the transverse direction of the connector plate.

[0013] Furthermore, a fuse clip is provided on the upper housing.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model reduces the size and weight of the electrical box by setting a miniature fuse on the upper housing, setting a miniaturized relay and terminals connected to the miniature fuse on the PCB board, setting a combined connector on the lower housing, and connecting a busbar on the PCB board and the lower housing. This reduces costs and space requirements, thereby meeting the space requirements of the vehicle layout.

[0016] Compared with the traditional component layout of the electrical box, the present invention reduces the horizontal and vertical area by 32%, the cost by 10%, and the weight by 15%.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 An exploded view of the electrical box is shown;

[0020] Figure 2 A schematic diagram of the cover structure is shown;

[0021] Figure 3 A schematic diagram of the miniaturized fuse is shown;

[0022] Figure 4 A schematic diagram of the upper shell structure is shown;

[0023] Figure 5 A schematic diagram of the PCB board structure is shown;

[0024] Figure 6 It shows Figure 5 Top view;

[0025] Figure 7 A schematic diagram of the lower housing structure is shown;

[0026] Figure 8 A schematic diagram of the side plate structure is shown;

[0027] Figure 9 A schematic diagram of the busbar structure is shown;

[0028] Figure 10 A schematic diagram of the combined connector is shown.

[0029] Figure 11 A schematic diagram showing the connection between the upper housing and the fuse clip is shown;

[0030] Reference numerals: 1. Cover; 11. Slot; 2. Upper housing; 21. Limiting groove; 211. First slot; 212. Second slot; 213. Third slot; 214. Fourth slot; 22. Miniaturized fuse; 221. Mcase fuse; 222. Mcase+ fuse; 223. Micro2 fuse; 224. Micro3 fuse; 23. Mounting / removing slot; 231. Limiting block; 24. Fuse clip; 25. Clamping plate; 3. PCB board; 31. Miniaturized relay; 311. HFK7-T / 12-HST relay; 312. HFK8-T / 12-SHST relay; 313. HFK9-T / 12-SHST relay; 314, HFK10-T / 12-SHST relay; 315, HFKAH-T / 12-1ZST relay; 316, HFKAH-T / 12-1HST relay; 32, terminal; 33, resistor; 34, connecting slot; 341, connecting hole; 4, lower housing; 41, combination connector; 411, connector slot; 412, connector plate; 42, connecting platform; 421, limiting hole; 422, first fastener; 5, side plate; 51, limiting platform; 52, MIDI fuse; 7, busbar; 71, main connecting bar; 711, mounting hole; 72, support bar; 73, extension bar; 8, second fastener. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Figure 1 An exploded view of the electrical box is shown. Figure 1 As shown, an electrical box includes an upper housing 2, a PCB board 3, and a lower housing 4 arranged sequentially from top to bottom. The lower housing 4 is provided with a limiting hole 421, and a busbar 7 is connected to the limiting hole 421. The lower housing 4 is provided with a combination connector 41 that connects to the PCB board 3. Figure 5 A schematic diagram of the structure of PCB board 3 is shown, as follows: Figure 5 As shown, on the side of the PCB board 3 away from the combined connector 41, terminals 32, resistors 33 and miniaturized relays 31 are distributed in an alternating manner. The upper housing 2 is provided with a miniaturized fuse 22 connected to the terminals 32. The lower housing 4 is provided with a side plate 5 on the side near the busbar 7. The busbar 7 is provided with a MIDI fuse 52. The end of the MIDI fuse 52 away from the busbar 7 is connected to the side plate 5.

[0033] The electrical box reduces its size and weight, lowers costs, and reduces space requirements by installing a miniature fuse on the upper housing 2, a miniaturized relay 31 and a terminal 32 connected to the miniature fuse on the PCB board 3, and a combination connector 41 on the lower housing 4. A busbar 7 is connected to the PCB board 3 and the lower housing 4. This reduces the size and weight of the electrical box, lowers costs, and reduces space requirements, thus meeting the space requirements of the vehicle layout.

[0034] Specifically, terminal 32 is provided with several.

[0035] Specifically, there are several MIDI fuses 52.

[0036] Figure 3 A schematic diagram of the miniaturized fuse 22 is shown. Figure 3As shown, in some embodiments, the miniaturized fuse 22 includes an Mcase fuse 221, an Mcase+ fuse 222, a Micro2 fuse 223, and a Micro3 fuse 224. These fuses are staggered within the upper housing 2, and are all connected to terminals 32. The miniaturized fuses 221, Mcase+ fuse 222, Micro2 fuse 223, and Micro3 fuse 224 are all connected to terminals 32. The miniaturized fuses 221, Mcase+ fuse 222, Micro2 fuse 223, and Micro3 fuse 224 not only reduce space requirements but also decrease weight.

[0037] Specifically, there are several Mcase fuses 221, Mcase+ fuse 222, Micro2 fuse 223, and Micro3 fuse 224.

[0038] In some embodiments, the end of the MIDI fuse 52 away from the busbar 7 is connected to the side plate 5 via a second fastener 8; the second fastener 8 is used to connect the MIDI fuse 52 and the busbar 7, which facilitates disassembly and reassembly.

[0039] Specifically, the second fastener 8 is optional, but not limited to, a bolt. Bolts are existing technology and will not be described further here.

[0040] In some embodiments, the miniaturized relay 31 includes HFK7-T / 12-HST relay 311, HFK7-T / 12, HFK8-T / 12-SHST relay 312, HFK8-T / 12, HFK9-T / 12-SHST relay 313, HFK9-T / 12, HFK10-T / 12-SHST relay 314, HFK10-T / 12, HFKAH-T / 12-1ZST relay 315, HFKAH-T / 12-1, and HFKAH-T / 12-1HST relay 316, HFKAH-T / 1 2-1, the HFK7-T / 12-HST relays 311, HFK7-T / 12, HFK8-T / 12-SHST relays 312, HFK8-T / 12, HFK9-T / 12-SHST relays 313, HFK9-T / 12, HFK10-T / 12-SHST relays 314, HFK10-T / 12, HFKAH-T / 12-1ZST relays 315, HFKAH-T / 12-1, and HFKAH-T / 12-1HST relays 316 are interleaved on the PCB board 3. The HFK7-T / 12-HST relay 311, HFK7-T / 12, HFK8-T / 12-SHST relay 312, HFK8-T / 12, HFK9-T / 12-SHST relay 313, HFK9-T / 12, HFK10-T / 12-SHST relay 314, HFK10-T / 12, HFKAH-T / 12-1ZST relay 315, HFKAH-T / 12-1 and HFKAH-T / 12-1HST relay 316 are all miniaturized relays, which not only reduce the space occupied but also reduce the weight.

[0041] Specifically, several HFK7-T / 12-HST relays are provided, including HFK7-T / 12, HFK8-T / 12-SHST relays, HFK8-T / 12, HFK9-T / 12-SHST relays, HFK9-T / 12, HFK10-T / 12-SHST relays, HFK10-T / 12-SHST relays, HFKAH-T / 12-1ZST relays, HFKAH-T / 12-1, and HFKAH-T / 12-1HST relays.

[0042] Figure 9 A schematic diagram of the busbar 7 is shown. Figure 9As shown, in some embodiments, the busbar 7 includes a main connecting strip 71, with support strips 72 on both sides of the main connecting strip 71. An extension strip 73 is provided at the end of each support strip 72 away from the main connecting strip 71. The main connecting strip 71 is connected to a connection hole 341, and a MIDI fuse 52 is provided on the extension strip 73. The busbar 7 performs power conversion for the PCB board 3; the main connecting strip 71 serves as a connection and fixation element; the support strip 72 connects the main connecting strip 71 and the extension strip 73; and the extension strip 73 connects to the MIDI fuse 52 and performs power conversion.

[0043] In some embodiments, the main connecting strip 71 is inverted L-shaped. The inverted L-shaped main connecting strip 71 facilitates connection and also facilitates the expansion of the support strip 72 and the extension strip 73.

[0044] Figure 8 A structural schematic diagram of side plate 5 is shown. (See diagram below.) Figure 8 As shown, in some embodiments, the side plate 5 is provided with a limiting platform 51, and the main connecting strip 71 and the support strip 72 are both in contact with the limiting platform 51. The limiting platform 51 serves to limit and support the main connecting strip 71 and the support strip 72.

[0045] In some embodiments, the side of the extension strip 73 opposite to the MIDI fuse 52 contacts the side plate 5. The extension strip 73 serves to convert power for the MIDI fuse 52.

[0046] Figure 4 A schematic diagram of the upper shell 2 is shown. Figure 4 As shown, in some embodiments, the upper housing 2 is provided with a limiting groove 21, and a miniaturized fuse 22 is inserted into the limiting groove 21; the limiting groove 21 plays a limiting role for the miniaturized fuse 22.

[0047] In some embodiments, the limiting slot 21 includes a first slot 211, a second slot 212, a third slot 213, and a fourth slot 214, which are staggered on the upper housing 2. The Mcase fuse 221 is inserted into the first slot 211, the Mcase+ fuse 222 is inserted into the second slot 212, the Micro2 fuse 223 is inserted into the third slot 213, and the Micro3 fuse 224 is inserted into the fourth slot 214. The first slot 211 limits the Mcase fuse 221; the second slot 212 limits the Mcase+ fuse 222; the third slot 213 limits the Micro2 fuse 223; and the fourth slot 214 limits the Micro3 fuse 224.

[0048] Specifically, there are several of the first slot 211, the second slot 212, the third slot 213 and the fourth slot 214.

[0049] Figure 7 A schematic diagram of the lower housing 4 is shown. Figure 7 As shown, in some embodiments, the lower housing 4 is provided with a connecting platform 42, and the connecting platform 42 is provided with a limiting hole 421. Figure 6 It shows Figure 5 Top view, such as Figure 6 As shown, the PCB board 3 is provided with a connecting groove 34, the connecting groove 34 is provided with a connecting hole 341, and a first fastener 422 is provided in the limiting hole 421 through the connecting hole 341. The first fastener 422 is connected to the busbar 7. The limiting hole 421 is used to limit the head position of the first fastener 422. The connecting hole 341 plays a guiding role for the first fastener 422. The connecting groove 34 facilitates the placement of the busbar 7. The connecting platform 42 is used to support the connecting groove 34.

[0050] Specifically, the first fastener 422 is optional, but not limited to, a bolt. Bolts are prior art and will not be described further here.

[0051] In some embodiments, the connecting hole 341 is connected to the main connecting strip 71 via a first fastener 422; the connection via the first fastener 422 facilitates disassembly.

[0052] In some embodiments, the main connecting strip 71 is provided with a mounting hole 711, and the first fastener 422 is connected to the mounting hole 711; the mounting hole 711 serves as a connection.

[0053] In some embodiments, the upper housing 2 is provided with a disassembly groove 23 that communicates with the connecting groove 34, so that the user can disassemble the upper housing 2.

[0054] In some embodiments, a limiting block 231 is provided on the wall of the disassembly groove 23, and the limiting block 231 contacts the busbar 7; the limiting block 231 plays a limiting role on the busbar 7.

[0055] Specifically, the limiting block 231 contacts the main connecting strip 71; the limiting block 231 plays a limiting role on the main connecting strip 71.

[0056] In some embodiments, the upper housing 2 is provided with a cover 1, and the MIDI fuse 52 is housed within the cover 1.

[0057] Figure 2 A schematic diagram of the structure of cover 1 is shown. Figure 2As shown, in some embodiments, the cover 1 is provided with a locking hole 11, and the upper shell 2 is provided with a locking plate 25, which is locked in the locking hole 11; the locking plate 25 is engaged with the locking hole 11, which not only facilitates the connection between the cover 1 and the upper shell 2, but also facilitates the disassembly of the cover 1 and the upper shell 2.

[0058] Figure 10 A schematic diagram of the combined connector 41 is shown. Figure 10 As shown, in some embodiments, the combined connector 41 includes a connector plate 412 and a plurality of connector slots 411, which are arranged sequentially along the transverse direction of the connector plate 412; the plurality of connector slots 411 can provide users with selection; the plurality of connector slots 411 are centrally arranged on the connector plate 412, saving space and reducing the area occupied.

[0059] Figure 11 A schematic diagram showing the connection between the upper housing 2 and the fuse clip 24 is provided. Figure 11 As shown, in some embodiments, the upper housing 2 is provided with a fuse clip 24; the fuse clip 24 makes it convenient for users to replace the miniaturized fuse 22, thus improving convenience.

[0060] The working principle of the electrical box is as follows:

[0061] By setting a miniature fuse on the upper housing 2, setting a miniature relay 31 and a terminal 32 connected to the miniature fuse on the PCB board 3, setting a combination connector 41 on the lower housing 4, and connecting a busbar 7 on the PCB board 3 and the lower housing 4, the volume and weight of the electrical box are reduced, the cost is reduced, and the space occupied is reduced, thereby meeting the space requirements of the vehicle layout.

[0062] The process involves assembling the side plate 5 onto the lower housing 4, then installing the PCB board 3 onto the lower housing 4 and connecting it to the connector. Next, the first fastener 422 is inserted into the limiting hole 421 and passes through the connecting hole 341. The busbar 7 passes through the first fastener 422 and is placed on the connecting groove 34. The support bar 72 and the main connecting bar 71, near the support bar 72, contact the limiting platform 51 and are then fixed to the connecting groove 34 by the first fastener 422. One end of the MIDI fuse 52 is connected to the extension bar 73, and the other end of the MIDI fuse 52 is connected to the side plate 5 via the second fastener 8. A miniaturized fuse 22 is installed on the upper housing 2, and the upper housing 2 is installed on the lower housing 4. The miniaturized fuse 22 is then connected to the terminal 32. A fuse clip 24 is installed on the upper housing 2. Finally, the cover 1 is placed on the upper housing 2, and the clip plate 25 is inserted into the clip hole 11 by downward force. This completes the installation.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical box, characterized in that, The device includes an upper housing (2), a PCB board (3), and a lower housing (4) arranged sequentially from top to bottom. The lower housing (4) is provided with a limiting hole (421), and a busbar (7) is connected to the limiting hole (421). The lower housing (4) is provided with a combination connector (41) connected to the PCB board (3). On the side of the PCB board (3) away from the combination connector (41), terminals (32), resistors (33), and miniaturized relays (31) are staggered. The upper housing (2) is provided with a miniaturized fuse (22) connected to the terminal (32). The side of the lower housing (4) near the busbar (7) is provided with a side plate (5). The busbar (7) is provided with a MIDI fuse (52), and the end of the MIDI fuse (52) away from the busbar (7) is connected to the side plate (5).

2. The electrical box according to claim 1, characterized in that, The busbar (7) includes a main connecting bar (71), and support bars (72) are provided on both sides of the main connecting bar (71). An extension bar (73) is provided at the end of the support bar (72) away from the main connecting bar (71). The main connecting bar (71) is connected to the connection hole (341), and a MIDI fuse (52) is provided on the extension bar (73).

3. The electrical box according to claim 1, characterized in that, The upper housing (2) is provided with a limiting groove (21), and a miniaturized fuse (22) is inserted in the limiting groove (21).

4. The electrical box according to claim 1, characterized in that, The lower housing (4) is provided with a connecting platform (42), the connecting platform (42) is provided with a limiting hole (421), the PCB board (3) is provided with a connecting groove (34), the connecting groove (34) is provided with a connecting hole (341), the limiting hole (421) is provided with a first fastener (422) that penetrates the connecting hole (341), and the first fastener (422) is connected to the busbar (7).

5. The electrical box according to claim 4, characterized in that, The upper housing (2) is provided with a disassembly groove (23) that communicates with the connecting groove (34).

6. The electrical box according to claim 5, characterized in that, The wall of the disassembly groove (23) is provided with a limiting block (231), which contacts the busbar (7).

7. The electrical box according to any one of claims 1 to 6, characterized in that, The upper housing (2) is provided with a cover (1), and the MIDI fuse (52) is housed in the cover (1).

8. The electrical box according to claim 7, characterized in that, The cover (1) is provided with a card hole (11), and the upper shell (2) is provided with a card plate (25), which is engaged in the card hole (11).

9. The electrical box according to any one of claims 1 to 6, characterized in that, The combined connector (41) includes a connector plate (412) and a plurality of connector slots (411), which are distributed sequentially along the transverse direction of the connector plate (412).

10. The electrical box according to any one of claims 1 to 6, characterized in that, The upper housing (2) is provided with a fuse clip (24).

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