New energy high-voltage wiring harness assembly for engineering machinery

Abstract

The utility model discloses a new energy high-voltage wiring harness assembly for engineering machinery, which is characterized in that a cathode high-voltage wiring harness and an anode high-voltage wiring harness are respectively integrated in a cathode high-voltage shielding line I and an anode high-voltage shielding line I. Corrugated pipes are respectively sleeved outside the cathode high-voltage shielding line I and the anode high-voltage shielding line I; a black heat shrink tube and a red heat shrink tube are respectively sleeved on the corrugated tube close to the PDU; the corrugated pipes are collected into the high-voltage connecting box, the positive high-voltage wire harness and the negative high-voltage wire harness are redistributed in the high-voltage connecting box, the negative high-voltage wire harness is divided into three paths, the positive high-voltage wire harness is divided into three paths, each path is integrated into a corresponding high-voltage shielding wire, then the corrugated pipes are connected in a sleeved mode, and finally the corrugated pipes are connected with the wiring terminals. The wiring harness is convenient to install, the anti-interference capability between the wiring harnesses is strong, the safety risk is eliminated, and the service life is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of new energy for construction machinery, and specifically refers to a new energy high-voltage wire harness assembly for construction machinery. Background Technique

[0002] The existing new energy high-voltage wire harnesses for construction machinery have the following problems: First, the new energy high-voltage wire harnesses for construction machinery are not integrated, and a large number of wires need to be laid, resulting in low efficiency and affecting the installation progress. Second, due to the poor working environment of construction machinery and large vibrations, all wire harness connections are made by hard connections. This not only easily causes poor contact of electrical circuits, but also easily weakens the anti-interference ability, leading to malfunctions or abnormal working states of construction machinery and posing great safety risks. Third, when the new energy high-voltage wire harnesses for construction machinery are working, the vibration amplitude is relatively large, resulting in poor sealing. The sealing risks of multiple connectors are increased, and they are easily eroded by dust, rain, dew, and fog, reducing the service life. Content of the Utility Model

[0003] The purpose of the utility model is to provide a new energy high-voltage wire harness assembly for construction machinery, which is convenient for installation, has strong anti-interference ability, eliminates safety risks, and improves the service life.

[0004] To achieve the above purpose, the new energy high-voltage wire harness assembly for construction machinery of the utility model includes a PDU high-voltage connector. The PDU high-voltage connector is connected with a high-voltage wire harness. The high-voltage wire harness includes a negative high-voltage wire harness and a positive high-voltage wire harness. The negative high-voltage wire harness and the positive high-voltage wire harness are respectively integrated into a negative high-voltage shielded wire I and a positive high-voltage shielded wire I. Bellows are respectively sleeved outside the negative high-voltage shielded wire I and the positive high-voltage shielded wire I. A black heat shrinkable tube and a red heat shrinkable tube are respectively sleeved at the parts of the bellows close to the PDU. The bellows converge into a high-voltage connection box. Inside the high-voltage connection box, the positive high-voltage wire harness and the negative high-voltage wire harness are redistributed. Three paths are separated from the negative high-voltage wire harness, and three paths are separated from the positive high-voltage wire harness. Each path is integrated into the corresponding high-voltage shielded wire, then sleeved with bellows, and finally connected to a terminal.

[0005] As a further scheme of the utility model: The three paths separated from the negative high-voltage wire harness are respectively sleeved with a negative high-voltage shielded wire II, a negative high-voltage shielded wire III, and a negative high-voltage shielded wire IV. One end of the negative high-voltage shielded wire II is connected with the bellows through a gland, and the other end is connected with the terminal through a black heat shrinkable tube. One end of the negative high-voltage shielded wire III is connected with the bellows through a black heat shrinkable tube, and the other end is connected with the terminal through a shielding ring, a black heat shrinkable tube in sequence. One end of the negative high-voltage shielded wire IV is connected with the bellows through a black heat shrinkable tube, and the other end is connected with the terminal through an MCU high-voltage connector.

[0006] As a further solution of the utility model: the three paths separated from the positive high-voltage wire harness are respectively sleeved with the positive high-voltage shield wire II, the positive high-voltage shield wire III, and the positive high-voltage shield wire IV. One end of the positive high-voltage shield wire II is connected to the corrugated pipe through a gland, and the other end is connected to the terminal through a red heat shrinkable tube; one end of the positive high-voltage shield wire III is connected to the corrugated pipe through a red heat shrinkable tube, and the other end is sequentially connected to the red heat shrinkable tube and the terminal through a shielding ring; one end of the positive high-voltage shield wire IV is connected to the corrugated pipe through a red heat shrinkable tube, and the other end is connected to the terminal through an MCU high-voltage connector.

[0007] As a further solution of the utility model: the high-voltage connection box includes a conductive sealing ring, which is arranged at the interface connected to the corrugated pipe, and also includes four-way terminals I, four-way terminals II, a wire distributing frame I, and a wire distributing frame II, which are evenly distributed inside the high-voltage connection box.

[0008] As a further solution of the utility model: the four-way terminals I and the four-way terminals II are respectively connected to four-way high-voltage shield wires; the wire distributing frame I and the wire distributing frame II are designed with upper and lower layers of through holes to separate the positive high-voltage wire harness and the negative high-voltage wire harness.

[0009] Compared with the prior art, the utility model integrates the new energy high-voltage wire harness assembly of construction machinery, with a simple structure, easy installation, neat wire harness, reduced wire harness storage space and convenient maintenance, effectively improving the service life of the wire harness assembly; on the one hand, the high-voltage connection box fixes the high-voltage wire harness, and on the other hand, it can reduce the mutual interference between the positive and negative high-voltage wire harnesses, eliminate safety risks, and improve the stability of the high-voltage wire harness; by adding a conductive sealing ring, the sealing performance of the high-voltage wire harness is improved, preventing it from being eroded by dust, rain, dew and fog, and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic structural diagram of the high-voltage wire harness assembly of the utility model.

[0011] Figure 2 It is a schematic internal structure diagram of the high-voltage connection box of the utility model.

[0012] In the figure: 1. PDU high-voltage connector; 2. Negative high-voltage shield wire I; 3. Positive high-voltage shield wire I; 4. Bellows; 5. Gland; 6. Negative high-voltage shield wire II; 7. Negative high-voltage shield wire III; 8. High-voltage connection box; 81. Conductive sealing ring; 82. Four-way terminal I; 83. Wiring rack I; 84. Wiring rack II; 85. Four-way terminal II; 9. Positive high-voltage shield wire III; 10. Positive high-voltage shield wire II; 11. Shielding ring; 12. Black heat shrink tube; 13. Red heat shrink tube; 14. Negative high-voltage shield wire IV; 15. Positive high-voltage shield wire IV; 16. MCU high-voltage connector; 17. Terminal Detailed implementation mode

[0013] The present utility model will be further described below in conjunction with the accompanying drawings.

[0014] As Figure 1 shown, a new energy high-voltage wire harness assembly for construction machinery includes a PDU high-voltage connector 1. The PDU high-voltage connector 1 is connected to a high-voltage wire harness. The high-voltage wire harness includes a negative high-voltage wire harness and a positive high-voltage wire harness. The negative high-voltage wire harness and the positive high-voltage wire harness are respectively integrated into the negative high-voltage shield wire I 2 and the positive high-voltage shield wire I 3. Bellows 4 are respectively sleeved outside the negative high-voltage shield wire I 2 and the positive high-voltage shield wire I 3. In order to facilitate the distinction between the negative high-voltage wire harness and the positive high-voltage wire harness, black heat shrink tubes 12 and red heat shrink tubes 13 are respectively sleeved at the parts of the bellows 4 close to the PDU; the bellows 4 converge into a high-voltage connection box 8. Inside the high-voltage connection box 8, the positive high-voltage wire harness and the negative high-voltage wire harness are redistributed. Three paths are separated from the negative high-voltage wire harness, and three paths are separated from the positive high-voltage wire harness. Each path is integrated into a corresponding high-voltage shield wire, and then the bellows 4 are sleeved, and finally connected to the terminal 17.

[0015] The three paths separated from the negative high-voltage wire harness are respectively sleeved with a negative high-voltage shield wire II 6, a negative high-voltage shield wire III 7, and a negative high-voltage shield wire IV 14. One end of the negative high-voltage shield wire II 6 is connected to the bellows 4 through a gland 5, and the other end is connected to the terminal 17 through a black heat shrink tube 12; one end of the negative high-voltage shield wire III 7 is connected to the bellows 4 through a black heat shrink tube 12, and the other end is sequentially connected to the black heat shrink tube 12 and the terminal 17 through a shielding ring 11; one end of the negative high-voltage shield wire IV 14 is connected to the bellows 4 through a black heat shrink tube 12, and the other end is connected to the terminal 17 through an MCU high-voltage connector 16.

[0016] The three circuits separated from the positive high-voltage harness are respectively sleeved with the positive high-voltage shield wire II10, the positive high-voltage shield wire III9, and the positive high-voltage shield wire IV15. One end of the positive high-voltage shield wire II10 is connected to the corrugated pipe 4 through the gland 5, and the other end is connected to the terminal 17 through the red heat shrinkable tube 13; one end of the positive high-voltage shield wire III9 is connected to the corrugated pipe 4 through the red heat shrinkable tube 13, and the other end is sequentially connected to the red heat shrinkable tube 13 and the terminal 17 through the shielding ring 11; one end of the positive high-voltage shield wire IV15 is connected to the corrugated pipe 4 through the red heat shrinkable tube 13, and the other end is connected to the terminal 17 through the MCU high-voltage connector 16.

[0017] By setting the black heat shrinkable tube 12 and the red heat shrinkable tube 13, it is convenient to distinguish the negative and positive poles of the high-voltage circuit, which is convenient for installation and conducive to rapid wiring and maintenance.

[0018] By sleeving the high-voltage shield wire and the corrugated pipe on the high-voltage harness, the integration of the harness is completed, the anti-interference ability of the harness is improved, the high-voltage harness is protected, and the service life of the high-voltage harness is extended.

[0019] As Figure 2 shown, the high-voltage connection box 8 includes a conductive sealing ring 81, which is arranged at the interface connected to the corrugated pipe 4, and also includes a four-way terminal I82, a four-way terminal II85, a wire dividing frame I83, and a wire dividing frame II84, which are evenly distributed inside the high-voltage connection box 8; the four-way terminal I82 and the four-way terminal II85 are respectively connected to the four-way high-voltage shield wires to make them neat and orderly, which is convenient for installation; the wire dividing frame I83 and the wire dividing frame II84 are designed with upper and lower layers of through holes to separate the positive high-voltage harness and the negative high-voltage harness so that they do not interfere with each other and improve the anti-interference ability of the high-voltage harness.

[0020] The high-voltage junction box 8 also plays a role in protecting and fixing the high-voltage shield wire.

[0021] The working process of the present utility model: The high-voltage harness extending from the PDU high-voltage connector 1 includes a negative high-voltage harness and a positive high-voltage harness. The negative high-voltage harness and the positive high-voltage harness are respectively integrated into the negative high-voltage shield wire I2 and the positive high-voltage shield wire I3. The corrugated pipes 4 are respectively sleeved outside the negative high-voltage shield wire I2 and the positive high-voltage shield wire I3. The black heat shrinkable tube 12 and the red heat shrinkable tube 13 are respectively sleeved at the parts of the corrugated pipes 4 close to the PDU; the corrugated pipes 4 converge into the high-voltage connection box 8. Inside the high-voltage connection box 8, the positive high-voltage harness and the negative high-voltage harness are redistributed. Three circuits are separated from the negative high-voltage harness, and three circuits are separated from the positive high-voltage harness. Each circuit is integrated into the corresponding high-voltage shield wire, then sleeved with the corrugated pipe 4, and finally connected to the terminal 17.

Claims

1. The new energy high-voltage wire harness assembly for construction machinery includes a PDU high-voltage connector (1). The PDU high-voltage connector (1) is connected to a high-voltage wire harness, and the high-voltage wire harness includes a negative high-voltage wire harness and a positive high-voltage wire harness. It is characterized in that, Integrate the negative high-voltage wire harness and the positive high-voltage wire harness into the negative high-voltage shield wire I (2) and the positive high-voltage shield wire I (3) respectively. Sleeve bellows (4) on the outer parts of the negative high-voltage shield wire I (2) and the positive high-voltage shield wire I (3). Sleeve a black heat shrink tube (12) and a red heat shrink tube (13) on the parts of the bellows (4) close to the PDU respectively. The bellows (4) converge into the high-voltage connection box (8). Inside the high-voltage connection box (8), redistribute the positive high-voltage wire harness and the negative high-voltage wire harness. Divide the negative high-voltage wire harness into three paths and the positive high-voltage wire harness into three paths. Each path is integrated into the corresponding high-voltage shield wire, then sleeved with bellows (4), and finally connected to the terminal (17).

2. The new energy high-voltage wire harness assembly for construction machinery according to claim 1, wherein The three paths divided from the negative high-voltage wire harness are respectively sleeved with the negative high-voltage shield wire II (6), the negative high-voltage shield wire III (7), and the negative high-voltage shield wire IV (14). One end of the negative high-voltage shield wire II (6) is connected to the bellows (4) through a gland (5), and the other end is connected to the terminal (17) through a black heat shrink tube (12). One end of the negative high-voltage shield wire III (7) is connected to the bellows (4) through a black heat shrink tube (12), and the other end is connected to the terminal (17) through a shielding ring (11) successively through the black heat shrink tube (12). One end of the negative high-voltage shield wire IV (14) is connected to the bellows (4) through a black heat shrink tube (12), and the other end is connected to the terminal (17) through an MCU high-voltage connector (16).

3. The new energy high-voltage wire harness assembly for construction machinery according to claim 1, characterized in that, The three paths divided from the positive high-voltage wire harness are respectively sleeved with the positive high-voltage shield wire II (10), the positive high-voltage shield wire III (9), and the positive high-voltage shield wire IV (15). One end of the positive high-voltage shield wire II (10) is connected to the bellows (4) through a gland (5), and the other end is connected to the terminal (17) through a red heat shrink tube (13). One end of the positive high-voltage shield wire III (9) is connected to the bellows (4) through a red heat shrink tube (13), and the other end is connected to the terminal (17) through a shielding ring (11) successively through the red heat shrink tube (13). One end of the positive high-voltage shield wire IV (15) is connected to the bellows (4) through a red heat shrink tube (13), and the other end is connected to the terminal (17) through an MCU high-voltage connector (16).

4. The new energy high-voltage wire harness assembly for construction machinery according to claim 1, characterized in that, The high-voltage connection box (8) includes a conductive sealing ring (81). The conductive sealing ring (81) is arranged at the interface connected to the bellows (4). It also includes four-way terminals I (82), four-way terminals II (85), a wire dividing frame I (83), and a wire dividing frame II (84), which are evenly distributed inside the high-voltage connection box (8).

5. The new energy high-voltage wire harness assembly for construction machinery according to claim 4, wherein, The four-way terminals I (82) and the four-way terminals II (85) are respectively connected to four-way high-voltage shield wires. The wire dividing frame I (83) and the wire dividing frame II (84) are designed with through holes in upper and lower layers to separate the positive high-voltage wire harness and the negative high-voltage wire harness.

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