Commercial vehicle short-path power supply control distribution safety protection device

Abstract

The utility model relates to the technical field of automobile electrical, and particularly discloses a commercial vehicle short-path power supply control distribution safety protection device which comprises a base, an upper cover and a frame installed between the base and the upper cover. The base is provided with a binding post power supply connecting module, a wiring harness plug-in connector fixing clamping groove module, a relay fixing clamping groove module and a power supply fuse fixing clamping groove module, and the lower part of the base is provided with a plurality of wire outlet hole sheaths; according to the utility model, the power supply circuit path is shortened, the circuit stability is higher, the protection level of the butt joint of the cab wiring harness and the chassis wiring harness, the relay and the insurance all reach the IP67 level, the wiring harness arrangement is reliable and beautiful, the wiring harness assembly and maintainability are good, the after-sales fault maintenance is convenient, and the maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electrical technology, in particular to a short-path power supply control distribution safety protection device for commercial vehicles. Background Art

[0002] As commercial vehicle products continue to move towards high-end, customers' requirements for heavy-duty truck products are also increasing. The connection between the cab harness and chassis harness and the relay fuse board of heavy-duty trucks are key nodes in the design of heavy-duty truck harnesses. They have extremely high requirements for harness connection reliability, protection level, maintenance convenience, and aesthetics. They also pay more attention to power distribution, control maintenance convenience, and reliability. At present, there is still room for optimization and improvement in the existing heavy-duty truck front wall junction box and relay fuse board solutions. Figure 7 As shown, the front wiring box 6 and the relay fuse device board of the existing heavy-duty truck models are distributed on the inner and outer sides of the vehicle instrument panel 9, so two inspection ports (inspection port 1 7 and inspection port 2 8) need to be set up for equipment maintenance. The circuit fault inspection efficiency is low, the power supply path is long, the cost of parts is high, and the external relays, fuses, resistors and other electrical components are brought with the wiring harness, which leads to difficulties in circuit inspection and search.

[0003] Therefore, it is necessary to invent a short-path power control distribution safety protection device for commercial vehicles to solve the problems of long power paths, high component costs, and low circuit fault repair efficiency in existing heavy-duty truck models. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide a short-path power control distribution safety protection device for commercial vehicles. After integration, the cost of parts is reduced; the layout area of ​​fuses, relays and wiring harness connectors is concentrated, and the efficiency of circuit fault inspection and repair is improved; the power path is shortened and the diameter of the main wiring harness is thinner; the space utilization rate is improved and the weight is lighter; and the problem of difficulty in circuit inspection and search caused by external relays, fuses, resistors and other electrical components coming with the wiring harness is avoided.

[0005] The utility model adopts the technical scheme to solve the technical problem: a commercial vehicle short-path power control distribution safety protection device, comprising a base, an upper cover and a frame, wherein the frame is installed between the base and the upper cover, and the base is provided with a terminal power connection module, a wiring harness connector fixing slot module, a relay fixing slot module, and a power fuse fixing slot module, and a plurality of outlet hole sheaths are provided at the lower part of the base.

[0006] Specifically, the base, upper cover and frame are fixed by bolts, the base and the upper part of the frame are rotatably connected by a rotating shaft, a bottom sealing ring is provided at the connection between the upper cover and the frame, and a top and wire outlet hole sealing ring is provided at the connection between the base and the frame.

[0007] Specifically, the terminal power connection module is arranged on the upper part of the base, and the terminal power connection module is provided with 4 terminals, the terminals are connected to the grounding terminals by bolts, and the grounding terminal protection cover is sleeved on the outside of the terminals.

[0008] Specifically, the wiring harness connector fixing slot module is arranged in the middle of the base, and the wiring harness connector fixing slot module is provided with a plurality of connector fixing slots, and the connector fixing slots are matched and connected with connectors.

[0009] Specifically, the relay fixing slot module is arranged on the lower right side of the base, and the relay fixing slot module is provided with a plurality of relay fixing slots, and the relay fixing slots are matched and connected with relays.

[0010] Specifically, the power fuse fixing slot module is arranged on the lower left side of the base, and the power fuse fixing slot module is provided with a plurality of fuse plate fixing slots, the fuse plate fixing slots match and connect the fuse plates, and a power bus bar is also embedded in the fuse plate fixing slots.

[0011] Specifically, the outlet hole sheath adopts a half-and-half clamping structure.

[0012] The utility model has the following beneficial effects:

[0013] The commercial vehicle short-path power control distribution safety protection device designed by the utility model has concentrated functional modules and high space utilization. By uniformly planning and laying out the wiring harness connectors, relays, insurance, and power terminals, the principle design is combined with the structural design. The functional module layout area is more concentrated, and the space occupancy rate and assembly efficiency are improved by more than about 30%.

[0014] The short-path power control distribution safety protection device for commercial vehicles designed by the utility model has short-path power distribution and stable circuit. It integrates modules such as connectors, relays, and insurance in the same area, greatly shortens the power loop path, reduces the risk of faults such as virtual connection of wiring harness connector terminals, and has higher circuit stability.

[0015] The utility model designs a bus bar design for a short-path power control distribution safety protection device for commercial vehicles. The main wiring harness wire diameter is thinner, and a bus bar is used to replace the traditional wire shunt, so that the total wire diameter of the cab wiring harness is thinner, the space utilization rate is improved, and the risk of interference wear caused by assembly is reduced.

[0016] The commercial vehicle short-path power control distribution safety protection device designed by the utility model has integrated parts and low cost. The power terminal, the connector connection module, the relay fixing slot module and the power fuse fixing slot module are integrated into one, the number of parts is reduced by 1, and the cost of parts is reduced by more than about 30%.

[0017] The utility model designs a commercial vehicle short-path power control distribution safety protection device with a centralized maintenance area. The device is arranged on the right front wall of the cab, and has a unique maintenance port for fuses, relays, and wiring harness connectors. The maintenance work can be completed by one person standing under the vehicle, thereby greatly improving the maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of a short-path power control distribution safety protection device for commercial vehicles.

[0019] Figure 2 yes Figure 1 Side view of.

[0020] Figure 3 yes Figure 1 Top view of the .

[0021] Figure 4 It is a schematic diagram of the structure of the base.

[0022] Figure 5 It is a schematic diagram of the structure of the sealing ring of the top and the outlet hole.

[0023] Figure 6 It is a schematic diagram of the structure of the power bus.

[0024] Figure 7 This is a schematic diagram of the maintenance status before the short-path power control distribution safety protection device of a commercial vehicle is used.

[0025] In the figure: 1-base, 1.1-binding post, 1.2-connector fixing slot, 1.3-relay fixing slot, 1.4-fuse fixing card, 1.5-ground terminal protection cover, 1.6-power bus bar;

[0026] 2-upper cover; 3-frame; 4-wire outlet cover; 5-top and wire outlet sealing ring; 6-front enclosure junction box; 7-maintenance opening 1; 8-maintenance opening 2; 9-instrument panel; 10-seat. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1:

[0029] like Figure 1-6As shown, a short-path power control distribution safety protection device for commercial vehicles includes a base 1, an upper cover 2 and a frame 3. The frame 3 is installed between the base 1 and the upper cover 2. The base 1 is provided with a terminal power connection module, a wiring harness connector fixing slot module, a relay fixing slot module, and a power fuse fixing slot module. The lower part of the base 1 is provided with 6 outlet hole sheaths 4.

[0030] The base 1, the upper cover 2 and the frame 3 are fixed by bolt connection, the base 1 and the upper part of the frame 3 are rotatably connected by a rotating shaft, a bottom sealing ring is provided at the entire circle connection between the upper cover 2 and the frame 3, and a top and outlet hole sealing ring 5 is provided at the connection between the base 1 and the frame 3.

[0031] This heavy-duty truck short-path power control distribution safety protection device breaks the constraints of the traditional "module separation" design concept, fully considers the assembly and maintenance process, and the "maintenance area concentration" + "power distribution integration" design concept is more in line with ergonomics. It adopts a split structure, which is easy to disassemble and assemble, and the wiring harness protection is reliable, which is convenient for the removal, replacement and maintenance of the wiring harness connector, relay, and insurance. While meeting the requirements of the vehicle wiring harness connector and relay mounting seat fixation and protection, it avoids the risks existing in the current cab front wall wiring harness docking, so that the stability of the vehicle circuit is further improved.

[0032] The terminal power connection module is arranged on the upper part of the base 1. The terminal power connection module is provided with 4 terminals 1.1. The 4 terminals 1.1 on the base 1 can be matched with the grounding terminal. The bolt connection method is adopted, which is reliable, convenient for disassembly and assembly, and error-proof for assembly. At the same time, it can carry the function of large current conversion. The 4 terminals 1.1 all adopt Hpb57 copper studs to separate the power ground from the signal ground, improve the load capacity, corrosion resistance and anti-interference performance, etc. The grounding terminal protection cover 1.5 is snap-fitted with the base 1 to protect the signal ground terminal and avoid the risk of fire caused by the user's private wiring harness on the terminal.

[0033] The wiring harness connector fixing slot module is arranged in the middle of the base 1. The wiring harness connector fixing slot module is provided with 26 connector fixing slots 1.2. The base 1 is provided with connector fixing square holes in a modular design. Each square hole can fix connectors of different sizes. It can be adapted to install more than 7 types of connectors of the same series. It has strong versatility, is convenient for assembly and can prevent mistakes.

[0034] The relay fixing slot module is arranged on the lower right side of the base 1. The relay fixing slot module is provided with 10 relay fixing slots 1.3. The base 1 is designed with a relay mounting seat fixing slot, which can be adapted to 3 types of relay mounting seats and 1 type of fuse mounting seat, and has strong functional interchangeability and versatility of use.

[0035] The power fuse fixing slot module is arranged on the lower left side of the base 1. The power fuse fixing slot module is provided with 96 fuse piece fixing slots 1.4. The base 1 is designed with a series of fuse piece fixing sockets, and a power bus bar 1.6 is embedded inside, which reduces the number of power harnesses used, distributes the power nearby, safely protects the electrical equipment, and improves the reliability of circuit protection.

[0036] The device adopts a split structure design and uses bolts to connect and close the upper cover, with high connection reliability and good airtightness. The top and bottom of the device are integrally sealed, with a U-shaped sealing structure at the bottom and a hollow sealing structure at the top, and the protection level can reach IP67.

[0037] The outlet hole sheath 4 adopts a half-type clamping structure, which ensures the universality of the structure and is easy to disassemble and assemble.

[0038] Each column and row of fixed square holes in the base 1 are marked with numbers or letters for easy identification during design, assembly and maintenance.

[0039] The inner plane of the upper cover 1 reserves an area for pasting the central electrical device panel logo and warning sign, which is convenient for assembly and maintenance identification guidance and saves assembly space.

[0040] The flame retardant properties meet the requirements of GB 8410 grade A-0.

[0041] Embodiment 2: Specific implementation process using the structural form of embodiment 1.

[0042] 1. The upper cover 2 is made of PA66 material, and a warning sign is pasted on the circular concave part in the middle of the upper cover 2. The flame retardant performance of the product meets the UL94 grade V-0 requirements. The upper rotating shaft of the upper cover 2 and the upper part of the frame 3 are open-type, which is convenient for disassembly and assembly. The upper cover 2 is connected with bolts around it, and the surrounding is an integrated edge sealing strip made of EPDM. Figure 1-Figure 3 .

[0043] 2. The frame 3 is made of PA66, and its flame retardant performance meets the UL94 V-0 requirement. The upper rotating shaft is openly matched with the upper cover 2. The 6 Φ9 mounting holes around the frame 3 are used for threaded connection with the base 1 and the body in white. The frame 3 is surrounded by an integrated edge sealing strip made of EPDM. The markings for the connector, fuse, and relay fixing holes of the base 1 are E, D, C, B, A, A, B, C, D, E, and F from top to bottom.

[0044] 3. The base 1 is made of PA66, and its flame retardant performance meets the requirements of GB 8410 Grade A-0. The base 1 integrates the terminal power connection module (4 terminals 1.1), the wiring harness connector fixing slot module (26 connector fixing slots 1.2), the relay fixing slot module (10 relay fixing slots 1.3) to install large relays, and the power fuse fixing slot module (96 fuse fixing slots 1.4) to install fuses. The power fuse fixing slot module has a built-in power bus bar 1.6. The markings for the connectors, fuses, and relay fixing holes of the base 1 are as follows: 1, 2, 3, 4, 5, and 6 from left to right, see Figure 4 .

[0045] 4. The bottom sealing ring is made of EPDM, and the flame retardant performance of the product meets the requirements of GB 8410 grade A-0.

[0046] 5. The outlet hole sheath 4 is used for sealing and protection of the wiring harness penetration. The material is PP. The flame retardant performance of the product meets the requirements of GB8410 grade A-0. It adopts a half-type clamping structure to ensure the versatility of the structure while facilitating disassembly and assembly.

[0047] 6. The power bus bar 1.6 is made of phosphor bronze and is embedded in the fuse fixing slot 1.4 and is connected to the E1 terminal. Figure 6 .

[0048] 7 The ground terminal protection cover 1.5 is made of PA66 and is snap-fitted with the base 1 to protect the M5 signal ground terminal, avoiding the risk caused by the user privately wiring the terminal.

[0049] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0050] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A short-path power supply control and distribution safety protection device for commercial vehicles, characterized in that: The invention comprises a base (1), an upper cover (2) and a frame (3), wherein the frame (3) is installed between the base (1) and the upper cover (2), and the base (1) is provided with a terminal power connection module, a wiring harness connector fixing slot module, a relay fixing slot module, and a power fuse fixing slot module, and a plurality of outlet hole sheaths (4) are provided at the lower part of the base (1), the terminal power connection module is arranged at the upper part of the base (1), the wiring harness connector fixing slot module is arranged at the middle part of the base (1), the relay fixing slot module is arranged at the lower right part of the base (1), and the power fuse fixing slot module is arranged at the lower left part of the base (1).

2. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The base (1), the upper cover (2) and the frame (3) are connected and fixed by bolts; the base (1) and the upper part of the frame (3) are rotatably connected by a rotating shaft; a bottom sealing ring is provided at the connection of the upper cover (2) and the frame (3); and a top and outlet hole sealing ring (5) is provided at the connection of the base (1) and the frame (3).

3. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The terminal power connection module is provided with four terminal posts (1.1), the terminal posts (1.1) are connected to grounding terminals via bolts, and a grounding terminal protection cover (1.5) is sleeved outside the terminal posts (1.1).

4. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The wiring harness connector fixing slot module is provided with a plurality of connector fixing slots (1.2), and the connectors are matched and connected in the connector fixing slots (1.2).

5. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The relay fixing slot module is provided with a plurality of relay fixing slots (1.3), and relays are matched and connected in the relay fixing slots (1.3).

6. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The power supply fuse fixing slot module is provided with a plurality of fuse plate fixing slots (1.4), the fuse plate fixing slots (1.4) are matched with the connecting fuse plates, and power supply bus bars (1.6) are also embedded in the fuse plate fixing slots (1.4).

7. The commercial vehicle short-path power supply control distribution safety protection device according to claim 1, characterized in that: The outlet hole sheath (4) adopts a half-and-half clamping structure.

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