Fuse box assembly

Abstract

The utility model discloses a fuse box assembly, which comprises an upper shell and a lower shell, and a circuit board is arranged between the upper shell and the lower shell. The circuit board is provided with an input end, a plurality of output ends, a fuse socket and a control relay; the input end is connected with a vehicle-mounted power supply, is provided with a bolt, and is connected with the input end connector through the arranged bolt; the output end insertion piece, the fuse socket and the circuit board are integrally welded; a plurality of fuses are arranged on the circuit board, one end of each fuse is connected with the input end, and the other end of each fuse is connected with the output end; a plurality of expansion joints are arranged on the peripheral side of the circuit board; and new requirements of customers are met, multiple functions are achieved, and the vehicle-mounted charger is suitable for more vehicle types and new vehicle types.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile fuse boxes, and in particular relates to a fuse box assembly. Background Art

[0002] With the development of the automotive industry, customers' requirements for cars are gradually increasing, and cars have more and more functions. More and more electronic devices and functions are added to the interior of the car. In order to better meet the humanized driving requirements, under such a background, the functional requirements for fuse boxes are also getting higher and higher.

[0003] The functions of existing fuse boxes are no longer sufficient, so a new fuse box is needed to meet new customer needs.

[0004] The existing fuse box can no longer fully meet the customer's needs in terms of electrical control function and structural function. To solve this problem, a fuse box assembly is needed that can replace the existing one in terms of installation space and electrical aspects, and is suitable for new functional requirements in terms of electrical and expansion. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a fuse box assembly that at least solves one of the problems of the background technology.

[0006] The utility model provides the following technical solutions:

[0007] A fuse box assembly comprises an upper shell and a lower shell, wherein a circuit board is installed between the upper shell and the lower shell;

[0008] The circuit board is provided with an input terminal, multiple output terminals, a fuse socket, and a control relay; the input terminal is connected to the vehicle power supply, and the input terminal is provided with a bolt, which is connected to the input terminal connector through the provided bolt;

[0009] Integrated welding of output terminal plugs, fuse sockets and circuit boards;

[0010] There are also multiple fuses on the circuit board, one end of the fuse is connected to the input end and the other end is connected to the output end;

[0011] A plurality of expansion connectors are provided on the peripheral side of the circuit board.

[0012] Preferably, the plurality of expansion connectors are evenly arranged along the circumference of the circuit board, one end of each expansion connector is connected to the input end, and the other end is connected to the output end; the expansion connector is a plug or a socket.

[0013] Preferably, the upper shell, circuit board and lower shell are installed in sequence from top to bottom and fastened with fastening screws; the upper shell and lower shell are injection molded.

[0014] Preferably, the circuit board is provided with a plurality of control relays 1 and a plurality of control relays 2, one end of the control relay 1 is connected to the control circuit of the circuit board, and the other end of the control relay 1 is connected to the input end main circuit; one end of the control relay 2 is connected to the control circuit of the circuit board, and the other end of the control relay 2 is connected to the input end main circuit.

[0015] Preferably, the fuse and the control relay 1 and the control relay 2 are connected to the circuit board in a plug-in manner; each fuse is provided with a corresponding light-emitting diode, and the fuse and the light-emitting diode are connected in series.

[0016] Preferably, a mark is provided on the surface of the upper shell, the mark is made of insulating material, and displays the model of the fuse box.

[0017] Preferably, the upper shell and the lower shell are made of reinforced nylon.

[0018] Preferably, the output end and the lower shell are plug-in outputs, and a rubber sheath is provided between the output end and the lower shell.

[0019] Preferably, holes are provided at the four corners of the lower shell, and the lower shell is mounted on the vehicle body by bolts fitting into the holes.

[0020] Preferably, the upper shell and the lower shell are respectively injection molded in one step, and the material is reinforced nylon, which is safe and reliable, meets the requirements of national banned substances, and is flame retardant in accordance with V0. The input end is a bolt type, and the surface is treated with salt spray resistance, which meets the requirements of national banned substances. The circuit board is assembled and welded by a fully automatic machine, including input end bolts, output end plug-in sheets, output end sockets, and various electrical components. The upper shell, circuit board assembly, and lower shell are installed in sequence and fastened with salt spray resistant fixing screws. The performance of the fuse and relay is stable, and the installation method is plug-in. The output end is a plug-in output with an integrated sheath of the lower shell.

[0021] This technical solution is provided with an expansion plug. When it is necessary to add new expansion functions to the original car, only another fuse box needs to be made and connected to the original fuse box through a socket, plug or expansion piece. On the one hand, it simplifies the circuit board design solution, and on the other hand, it reduces the production cost.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The utility model provides a fuse box assembly with expansion functions reserved in four directions to meet new customer needs, achieve multi-functions, and adapt to more and new models of vehicles; realize platformization of different vehicle models, with wide application and strong practicality; the fuse box assembly material is flame-retardant V0 for safety protection, greater applicability, and a wider range of applicable ambient temperature; the new electrical principle and new structural layout design are combined to add new control functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a top view of the fuse box structure of the present utility model.

[0026] Figure 2 It is a side view of the present utility model.

[0027] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0028] Figure 4 It is an enlarged schematic diagram of the local structure of A of the present utility model. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention. Example

[0031] refer to Figure 1-4 A fuse box assembly includes an upper shell 1 and a lower shell 2, with a circuit board 5 installed between the upper shell 1 and the lower shell 2; the circuit board 5 is provided with an input terminal 3, multiple output terminals 11, a fuse 7 socket, and a control relay; the input terminal 3 is connected to the vehicle power supply, and the input terminal 3 is provided with a bolt, which is connected to the input terminal 3 connector through the provided bolt; the output terminal 11 plug, the fuse 7 socket and the circuit board 5 are integrally welded; the circuit board 5 is also provided with multiple fuses 7, one end of the fuse 7 is connected to the input terminal 3, and the other end is connected to the output terminal 11;

[0032] Multiple expansion connectors 10 are provided around the perimeter of the circuit board 5. These connectors 10 are evenly spaced along the perimeter of the circuit board 5. One end of each expansion connector 10 is connected to the input terminal 3, and the other end is connected to the output terminal 11. These expansion connectors 10 are either plugs or sockets. The upper housing 1, circuit board 5, and lower housing 2 are installed sequentially from top to bottom and secured with screws. The upper and lower housings 1 and 2 are injection molded. The circuit board 5 is equipped with multiple control relays 1 8 and 2 9. One end of control relay 1 8 is connected to the control circuit of the circuit board 5, and the other end is connected to the main circuit of the input terminal 3. One end of control relay 2 9 is connected to the control circuit of the circuit board 5, and the other end is connected to the main circuit of the input terminal 3. Fuses 7, control relays 1 8, and control relays 2 9 are connected to the circuit board 5 via plug-in connections. Each fuse 7 is equipped with a corresponding light-emitting diode 6, which is connected in series. A label 12 made of insulating material is provided on the surface of the upper housing 1, indicating the fuse box model. The upper and lower housings 1 and 2 are made of reinforced nylon. The output port 11 is plug-in and mounted on the lower housing 2, with a rubber sheath between them. Holes are located at the four corners of the lower housing 2, allowing bolts to secure the device to the vehicle. The output port 11 consists of a plug and a socket. The socket is fitted with multiple plugs, which are welded to the circuit board.

[0033] The upper and lower housings 1 and 2 are each injection-molded in a single step from reinforced nylon, ensuring safety and reliability, meeting national standards for banned substances, and achieving a flame retardancy rating of V0. The input terminal 3 is a bolt-type device with a salt spray-resistant surface treatment, meeting national standards for banned substances. The circuit board 5 is assembled and welded using a fully automated machine, comprising the input terminal 3 bolts, the output terminal 11 inserts, the output terminal 11 socket, and various electrical components. The upper housing 1, circuit board 5 assembly, and lower housing 2 are assembled sequentially and secured with salt spray-resistant retaining screws 4. The fuse 7 and relay feature stable performance and are installed using a plug-in design. The output terminal 11 is a plug-in output, integrated into the lower housing 2's sheath.

[0034] This technical solution is provided with an expansion plug. When it is necessary to add new expansion functions to the original car, only another fuse box needs to be made and connected to the original fuse box through a socket, plug or expansion piece. On the one hand, it simplifies the circuit board design solution, and on the other hand, it reduces the production cost.

[0035] Specifically, 1. The fuse type is F, which complies with the requirements of GB / T 31465.1 and GB / T 31465.3;

[0036] 2. The relay socket should comply with the installation requirements of 3752015-91W, 3752115-91W relays and 3722110-671 relays;

[0037] 3. Flame retardant properties according to: GB 8410 (GB / T2408 horizontal HB level, vertical V-0 level requirements);

[0038] 4. Bolt tightening torque is (10~12)Nm;

[0039] 5. Vibration shall comply with the requirements of GB / T 28046.3;

[0040] 6. Other requirements shall be in accordance with JA 3722-A01-1;

[0041] 7. After the fuse blows, when the system voltage is 28V, the voltage at the output of the fuse box must be less than 2V;

[0042] 8. The voltage drop of each circuit in the fuse box meets the following requirements: for circuits with loads <10A, the maximum voltage drop is 20mV / A; for circuits with loads between 10A and 20A, the maximum voltage drop is 15mV / A; for circuits with loads >20A, the maximum voltage drop is 10mV / A.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuse box assembly, characterized in that: It comprises an upper shell (1) and a lower shell (2), wherein a circuit board (5) is installed between the upper shell (1) and the lower shell (2); The circuit board (5) is provided with an input terminal (3), a plurality of output terminals (11), a fuse (7) socket, and a control relay; the input terminal (3) is connected to the vehicle power supply, and the input terminal (3) is provided with a bolt, which is connected to the input terminal (3) connector through the provided bolt; The output end (11) plug, the fuse (7) socket and the circuit board (5) are integrated and welded; A plurality of fuses (7) are also provided on the circuit board (5), one end of the fuse (7) is connected to the input end (3), and the other end is connected to the output end (11); A plurality of expansion connectors (10) are provided on the peripheral side of the circuit board (5).

2. A fuse box assembly according to claim 1, characterized in that: The plurality of expansion connectors (10) are evenly arranged along the circumference of the circuit board (5), one end of each expansion connector (10) is connected to the input end (3), and the other end is connected to the output end (11); the expansion connector (10) is a plug or a socket.

3. The fuse box assembly according to claim 1, characterized in that: The upper shell (1), circuit board (5), and lower shell (2) are installed in sequence from top to bottom and fastened using fastening screws; the upper shell (1) and lower shell (2) are injection molded.

4. The fuse box assembly according to claim 1, characterized in that: The circuit board (5) is provided with a plurality of control relays 1 (8) and a plurality of control relays 2 (9), one end of the control relay 1 (8) is connected to the control circuit of the circuit board (5), and the other end of the control relay 1 (8) is connected to the input end (3) main circuit; one end of the control relay 2 (9) is connected to the control circuit of the circuit board (5), and the other end of the control relay 2 (9) is connected to the input end (3) main circuit.

5. The fuse box assembly according to claim 1, characterized in that: The fuse (7), control relay 1 (8), and control relay 2 (9) are connected to the circuit board (5) in a plug-in manner; each fuse (7) is provided with a corresponding light-emitting diode (6), and the fuse (7) and the light-emitting diode (6) are connected in series.

6. The fuse box assembly according to claim 1, characterized in that: The surface of the upper shell (1) is provided with a mark (12), the mark (12) is made of insulating material and displays the model of the fuse box.

7. The fuse box assembly according to claim 1, characterized in that: The upper shell (1) and the lower shell (2) are made of reinforced nylon.

8. The fuse box assembly according to claim 1, characterized in that: The output end (11) and the lower housing (2) are plug-in outputs, and a rubber sheath is provided between the output end (11) and the lower housing (2).

9. The fuse box assembly according to claim 1, characterized in that: Holes are provided at the four corners of the lower shell (2), and are mounted on the vehicle body by means of bolts fitting the holes.

10. The fuse box assembly according to claim 1, characterized in that: The output end (11) comprises a plug and a socket, a plurality of plugs are provided on the inner side of the socket, and the plug and the socket are welded to the circuit board.

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