Electrically-driven two-in-one high-voltage junction box applied to non-road mechanical vehicle

Abstract

The utility model relates to the technical field of junction boxes, and discloses an electrically-driven two-in-one high-voltage junction box applied to a non-road mechanical vehicle, which comprises a junction box main shell, a high-voltage wire bolt mounting seat, a junction box upper cover, a bus copper bar, a bolt and a rear cover plate, and the rear cover plate is provided with a second battery high-voltage positive and negative electrode wire wiring port. According to the electrically-driven two-in-one high-voltage junction box applied to the non-road mechanical vehicle, wiring port blind holes are reserved on the main shell of the junction box and are not processed, so that a high-voltage wire of a battery can be directly accessed from the second wiring port and enters through the second battery high-voltage positive and negative wire wiring ports to be connected with a bus copper bar, and the high-voltage wire of the battery can be directly connected with the bus copper bar. The problem that when the second battery comes from the direction of the high-voltage positive and negative electrode wire wiring port, the turning radius is large, and no space is provided for arranging the high-voltage wire is solved.

Description

Technical Field

[0001] This utility model relates to the field of junction box technology, specifically a high-voltage junction box for electric drive of non-road mechanical vehicles. Background Technology

[0002] Currently, all electric drive dual-in-one high-voltage junction boxes for non-road machinery vehicles on the market have unidirectional cable outlets. In some motor installation locations, the single cable outlet of the junction box will face away from the high-voltage line. In this case, due to the large diameter of the cable, a large turning radius is required to reach the opposite cable outlet, resulting in insufficient space for cable arrangement. A dual-in-one back-facing design can solve this problem well. Therefore, there is an urgent need for a dual-in-one high-voltage junction box for electric drive of non-road machinery vehicles to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this utility model is to provide a high-voltage junction box for electric drive of non-road machinery vehicles, in order to solve the problem mentioned in the background art. Currently, the high-voltage junction boxes for electric drive of non-road machinery vehicles on the market are all unidirectional outlets. In some motor installation positions, the single outlet of the junction box will face away from the high-voltage line. At this time, due to the large diameter of the cable, a large turning radius is required to reach the opposite outlet, resulting in insufficient space for cable arrangement.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A high-voltage junction box for electric drive of non-road machinery vehicles is disclosed. The junction box comprises a main housing, a high-voltage line bolt mounting base, a top cover, a busbar, bolts, and a rear cover. The main housing has a first battery high-voltage positive and negative terminal connection port, and the rear cover has a second battery high-voltage positive and negative terminal connection port. Both the first and second battery high-voltage positive and negative terminal connections have two holes for connecting the battery high-voltage positive and negative lines. The high-voltage line bolt mounting base is located below the busbar. The top of the main housing is the top cover, and bolts are installed on the left side of the top cover. A rear cover is installed at the rear end of the main housing. The high-voltage junction box has a first connection port and a second connection port at its two ends.

[0006] As a preferred embodiment of this utility model, the bolt is a hexagonal bolt.

[0007] As a preferred embodiment of this utility model, the first and second terminals are of the same size, and the diameters of the two holes are circular.

[0008] As a preferred embodiment of this utility model, the first wiring port and the second wiring port are located at the left and right ends of the main housing of the junction box, respectively.

[0009] As a preferred embodiment of this utility model, the cross-sectional area of ​​the rear cover is smaller than the cross-sectional area of ​​the junction box cover.

[0010] As a preferred embodiment of this utility model, the high-voltage line bolt mounting base is installed inside the main housing of the junction box.

[0011] Compared with the prior art, the present invention has the following advantages: The main housing of the junction box of the present invention has a pre-reserved blind hole for the wiring port, which does not need to be processed. In this way, the high voltage wire of the battery can be directly connected from the second wiring port, and enters through the high voltage positive and negative terminal wiring port of the second battery to connect with the bus copper bus and be fixed to the high voltage wire bolt mounting seat. This solves the problem that when the high voltage positive and negative terminal wiring port of the second battery comes from the direction, the turning radius is large and there is no space to arrange the high voltage wire. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a cross-sectional view of the high-voltage junction box for electric drive of non-road machinery vehicles, which is an application of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall structure of the dual-purpose high-voltage junction box for electric drive of non-road machinery vehicles.

[0015] In the diagram: 1. Junction box main housing; 2. High-voltage line bolt mounting base; 3. Busbar copper busbar; 4. First wiring port; 5. Second wiring port; 6. Junction box top cover; 7. Rear cover plate; 8. Bolt; 9. Second battery high-voltage positive and negative terminal wiring port; 10. First battery high-voltage positive and negative terminal wiring port. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.

[0017] Please see Figure 1-2A high-voltage junction box for electric drive of non-road machinery vehicles is disclosed. The high-voltage junction box consists of a main housing 1, a high-voltage line bolt mounting base 2, a junction box cover 6, a busbar copper busbar 3, bolts 8, and a rear cover plate 7. The main housing 1 has a first battery high-voltage positive and negative line connection port 10, and the rear cover plate 7 has a second battery high-voltage positive and negative line connection port 9. The first battery high-voltage positive and negative line connection port 10 and the second battery high-voltage positive and negative line connection port 9 have two holes for connecting the battery high-voltage positive and negative lines. The high-voltage line bolt mounting base 2 is located below the busbar copper busbar 3. The upper end of the main housing 1 is the junction box cover 6, and the bolts 8 are installed on the left side of the junction box cover 6. A rear cover plate 7 is installed at the rear end of the main housing 1. The two ends of the high-voltage junction box are respectively provided with a first connection port 4 and a second connection port 5.

[0018] Among them, bolt 8 is a type of hexagonal bolt.

[0019] The first terminal 4 and the second terminal 5 are the same size and have the same diameter. The two holes are circular.

[0020] The first wiring port 4 and the second wiring port 5 are located at the left and right ends of the main housing 1 of the junction box, respectively.

[0021] The cross-sectional area of ​​the rear cover 7 is smaller than that of the junction box cover 6.

[0022] The high-voltage line bolt mounting base 2 is installed inside the main housing 1 of the junction box.

[0023] The working principle and usage process of this utility model: This dual-outlet junction box consists of a main junction box housing 1, a high-voltage line bolt mounting base 2, a junction box top cover 6, a busbar copper busbar 3, bolts 8, and a rear cover plate 7 (e.g., Figure 1 The main housing 1 of the junction box has a first battery high voltage positive and negative wire connection port 10, and the rear cover 7 has a second battery high voltage positive and negative wire connection port 9. All connection ports have two holes, which can be connected to the battery high voltage positive and negative wires.

[0024] For example, if there is only one second connection port 5, when the battery high-voltage wire comes from the direction of the first battery high-voltage positive and negative terminal connection port 10, the battery high-voltage wire needs to make a large radius turn to connect to the second connection port 5. However, with the design of two back-facing connection ports, there is no need for the high-voltage wire to turn. The pre-reserved blind hole on the main housing 1 of the junction box is directly processed into a through hole (first connection port 4), and the pre-reserved blind hole on the rear cover 7 (second connection port 5) is not processed. In this way, the battery high-voltage wire can be directly connected from the first connection port 4, enter through the first battery high-voltage positive and negative terminal connection port 10, connect to the bus copper busbar 3, and be fixed to the high-voltage wire bolt mounting seat 2. This solves the problem of large turning radius and no space for high-voltage wire arrangement when coming from the direction of the first battery high-voltage positive and negative terminal connection port 10. Conversely, if there is only one first connection port 4, when the battery high-voltage wire comes from the direction of the second battery high-voltage positive and negative connection port 9, the battery high-voltage wire needs to make a large radius turn to connect to the first connection port 4. However, with the design of two back-facing connection ports, there is no need for the high-voltage wire to turn. The blind hole reserved for the connection port on the rear cover plate 7 is directly machined into a through hole (second connection port 5), and the blind hole reserved for the connection port on the main housing 1 of the junction box is not machined. In this way, the battery high-voltage wire can be directly connected from the second connection port 5, and enters through the second battery high-voltage positive and negative connection port 9 to connect to the bus copper busbar 3 and be fixed to the high-voltage wire bolt mounting seat 2. This solves the problem of large turning radius and no space for high-voltage wire arrangement when coming from the direction of the second battery high-voltage positive and negative connection port 9.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A high-voltage junction box for electric drive of non-road machinery vehicles, the high-voltage junction box comprising a main housing (1), a high-voltage line bolt mounting base (2), a junction box cover (6), a busbar copper busbar (3), bolts (8), and a rear cover plate (7), characterized in that: The main housing (1) of the junction box has a first battery high voltage positive and negative terminal wire connection port (10), and the rear cover plate (7) has a second battery high voltage positive and negative terminal wire connection port (9). The first battery high voltage positive and negative terminal wire connection port (10) and the second battery high voltage positive and negative terminal wire connection port (9) have two holes for connecting the battery high voltage positive and negative terminal wires. The high voltage line bolt mounting seat (2) is located below the bus copper busbar (3). The upper end of the main housing (1) of the junction box is the junction box cover (6), and a bolt (8) is installed on the left side of the junction box cover (6). A rear cover plate (7) is installed at the rear end of the main housing (1) of the junction box. The two ends of the high voltage junction box are respectively provided with a first connection port (4) and a second connection port (5).

2. The high-voltage junction box for electric drive of non-road machinery vehicles according to claim 1, characterized in that: The bolt (8) is a hexagonal bolt.

3. The high-voltage junction box for electric drive of non-road machinery vehicles according to claim 1, characterized in that: The first terminal (4) and the second terminal (5) are the same size and the two holes are circular.

4. A high-voltage junction box for electric drive of non-road machinery vehicles according to claim 1, characterized in that: The first wiring port (4) and the second wiring port (5) are located at the left and right ends of the main housing (1) of the junction box, respectively.

5. A high-voltage junction box for electric drive of non-road machinery vehicles according to claim 1, characterized in that: The cross-sectional area of ​​the rear cover (7) is smaller than that of the junction box cover (6).

6. A high-voltage junction box for electric drive of non-road machinery vehicles according to claim 1, characterized in that: The high-voltage line bolt mounting base (2) is installed inside the junction box main housing (1).

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