Automobile high-voltage junction box

Abstract

The utility model discloses an automobile high-voltage junction box, which comprises a junction box casing, a wiring port penetrating through one side of the junction box casing, a plurality of insulating junction pipes penetrating through the other side of the junction box casing, and a dustproof net frame penetrating through the bottom wall of the junction box casing, the upper part of the dustproof net frame is fixedly connected with a U-shaped chamber clamping seat, and the lower part of the dustproof net frame is fixedly connected with a U-shaped chamber clamping seat. A ventilation opening is formed in the bottom of the junction box machine shell, a fixing frame is connected to the U-shaped cavity clamping base in a clamped mode, a clamping opening matched with the U-shaped cavity clamping base is formed in the inner side of the fixing frame, and an air outlet filter screen penetrates through the upper portion of the fixing frame. The utility model belongs to the technical field of automobile high-voltage electric appliance boxes, and effectively solves the problems that the heat dissipation function of an automobile high-voltage junction box is poor, and high-voltage branch wires are easy to age in a high-temperature environment, so that the insulating property is reduced, and the risk of short circuit or electric leakage is increased.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile high -voltage electric appliance box, specifically point to a kind of automobile high -voltage distribution box. BACKGROUND

[0002] As the important structure of new energy vehicle electric energy transmission, high-voltage wire harness undertakes the important mission of transmitting the electric energy required for driving vehicle safely and reliably, and plays a key role in the safety, reliability and stability of new energy vehicle. High-voltage wire harness sometimes needs to be processed when arranging, that is, a main line is divided into multiple branch lines.

[0003] However, the existing automobile high-voltage distribution box has the following problems:

[0004] Poor heat dissipation: a large amount of heat is generated when the electrical elements inside the high-voltage distribution box are working, and the existing structure has insufficient heat dissipation, which easily leads to overheating of the elements, affecting performance and service life. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is that the automobile high-voltage distribution box has poor heat dissipation function, the high-voltage distribution is easily aged in high-temperature environment, which leads to the decrease of insulation performance and increases the risk of short circuit or electric leakage.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] The utility model provides an automobile high-voltage distribution box, which comprises a distribution box shell, a wiring port penetrates one side of the distribution box shell, a plurality of insulating distribution pipes penetrate the other side of the distribution box shell, and a dust screen frame is arranged through the bottom wall of the distribution box shell, a U-shaped cavity clamping seat is fixedly connected to the upper part of the dust screen frame, a ventilation port is formed in the bottom of the distribution box shell, a fixing frame is clamped on the U-shaped cavity clamping seat, a clamping hole matched with the U-shaped cavity clamping seat is formed in the inner side of the fixing frame, and an air outlet filter screen penetrates the upper part of the fixing frame.

[0008] Further, a box cover is arranged above the distribution box shell, and an air extractor penetrates the upper part of the box cover and is located above the air outlet filter screen.

[0009] Further, a mouth-shaped frame is inserted into the ventilation port, and a plurality of groups of air duct guide plates are fixedly connected to the inner wall of the mouth-shaped frame.

[0010] Further, a support is fixedly connected to the lower part of the distribution box shell, which is used to leave an air inlet space after lifting the distribution box shell, an L-shaped support plate is fixedly connected to the support, and a fixing bolt is screwed to the support.

[0011] Further, a sealing frame is fixedly connected to the outer wall of the distribution box shell and matched with the box cover, and a slot is formed in the two sides of the sealing frame.

[0012] Further, the lower part of the box cover is fixedly connected with a limiting block arranged on the slot, and a limiting threaded rod is screwed on the limiting block and clamped on the lower part of the sealing frame.

[0013] The utility model discloses the beneficial effects achieved by the above structure are as follows:

[0014] 1. the junction box is divided into multiple independent chambers, each chamber corresponds to different lines, and a heat dissipation air duct is designed between the chambers, air flow is used to enhance heat dissipation.

[0015] 2. The modular design is adopted, the installation and dismounting efficiency of the structure is optimized, and flexible use is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the utility model embodiment;

[0017] Figure 2 It is the structure split schematic view of the utility model embodiment;

[0018] Figure 3 It is the use state reference drawing of U-shaped chamber card seat and mouth-shaped frame;

[0019] Figure 4 It is the air duct schematic view in the junction box casing;

[0020] Figure 5 It is the use state reference drawing of limiting block and sealing frame.

[0021] Among them, 1, junction box casing;11, wiring port;12, insulating distribution tube;13, dust screen frame;2, U-shaped chamber card seat;21, air vent;22, fixed frame;221, bayonet;23, air outlet filter screen;3, box cover;31, exhaust fan;4, mouth-shaped frame;41, air duct guide plate;5, support;51, L-shaped support plate;6, sealing frame;61, slot;62, limiting block;63, limiting threaded rod. DETAILED DESCRIPTION

[0022] Example one:

[0023] As Figure 1 , Figure 2 , Figure 3As shown, the utility model provides a kind of automobile high pressure distribution box, including distribution box casing 1, the one side of distribution box casing 1 is penetrated and is connected with wiring port 11, the other side of distribution box casing 1 is penetrated and is connected with several insulating distribution tube 12, wiring harness is installed through insulating distribution tube 12, still including dust screen frame 13 being set in the bottom wall of distribution box casing 1, the upper portion of dust screen frame 13 is fixedly connected with U-shaped chamber card seat 2, and insulating distribution tube 12 is one-to-one correspondence, the bottom of distribution box casing 1 is provided with air vent 21, the upper portion of U-shaped chamber card seat 2 is clamped with fixed frame 22, the inside of fixed frame 22 is provided with the bayonet 221 of cooperation with U-shaped chamber card seat 2, can be flexibly used fixed frame 22 plug-in installation according to the number of distribution wiring, the upper portion of fixed frame 22 is penetrated and is connected with air outlet filter screen 23, forms the complete air duct in distribution box casing 1;The top of distribution box casing 1 is equipped with box cover 3, the upper portion of box cover 3 is penetrated and is connected with suction fan 31 in the top of air outlet filter screen 23, and hot air in distribution box casing 1 is extracted by suction fan 31, and the flow of air is accelerated.

[0024] As Figure 3 、 4 As shown, the air vent 21 is inserted with mouth-shaped frame 4, and a plurality of groups of air duct guide plates 41 are fixedly connected to the inner wall of the mouth-shaped frame 4, so that the air entering from the bottom of the distribution box casing 1 through the dust screen frame 13 flows vertically upward, corresponding to each group of wiring, and the heat dissipation effect is improved.

[0025] As Figure 2 shown, the lower portion of the distribution box casing 1 is fixedly connected with a support 5, which is used to lift the distribution box casing 1 to leave an air inlet space, and the support 5 is fixedly connected with an L-shaped support plate 51, and the support 5 is screwed with a fixing bolt.

[0026] Example two:

[0027] As Figure 2 、 5 shown, the outer wall of the distribution box casing 1 is fixedly connected with a sealing frame 6 that is attached to the box cover 3, which improves the sealing performance after installation; the sealing frame 6 is provided with a slot 61 on both sides, the box cover 3 is fixedly connected with a limiting block 62 that is inserted and arranged in the slot 61, and the limiting block 62 is screwed with a limiting threaded rod 63 that is clamped on the lower portion of the sealing frame 6, which fixes the box cover 3 by rotating the limiting threaded rod 63 when installing; the same principle applies when disassembling, the limiting threaded rod 63 is removed to improve the disassembly efficiency and facilitate subsequent use and maintenance.

[0028] The above is the entire use process of the automobile high pressure distribution box.

[0029] The above has described the utility model and its implementation mode, which is not restrictive, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A high-voltage distribution box for a vehicle, comprising a distribution box housing (1), a wiring port (11) being formed through one side of the distribution box housing (1), and a plurality of insulating distribution tubes (12) being formed through the other side of the distribution box housing (1), characterized in that: Also include the dust screen frame (13) is set through the bottom wall of the distribution box shell (1), the upper part of the dust screen frame (13) is fixedly connected with U type chamber card seat (2), the bottom of the distribution box shell (1) is provided with ventilation opening (21), the U type chamber card seat (2) is connected with fixed frame (22) on the upper part, the inner side of the fixed frame (22) is provided with the bayonet (221) matched with U type chamber card seat (2), the upper part of the fixed frame (22) is penetrated by the air outlet filter screen (23).

2. The automotive high voltage distribution box according to claim 1, characterized in that: The distribution box shell (1) is provided with box cover (3) above, the upper part of the box cover (3) is penetrated by the air extraction machine (31) above the air outlet filter screen (23).

3. The automotive high voltage distribution box of claim 2, wherein: The ventilation opening (21) is inserted with the mouth-shaped frame (4), and a plurality of groups of air duct guide plates (41) are fixedly connected on the inner wall of the mouth-shaped frame (4).

4. The automotive high voltage distribution box of claim 1, wherein: The distribution box shell (1) is fixedly connected with support (5) below, which is used to lift the distribution box shell (1) and leave the air inlet space, the support (5) is fixedly connected with L-shaped support plate (51), and the support (5) is screwed with fixing bolt.

5. The automotive high voltage distribution box of claim 2, wherein: The outer wall of the distribution box shell (1) is fixedly connected with the sealing frame (6) matched with the box cover (3), and the sealing frame (6) is provided with the insertion slot (61) on both sides.

6. The automotive high voltage distribution box of claim 5, wherein: The lower part of the box cover (3) is fixedly connected with the limiting block (62) inserted in the insertion slot (61), and the limiting screw rod (63) is screwed on the limiting block (62) and clamped on the lower part of the sealing frame (6).

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