A patch panel structure for DHT

Abstract

The application relates to the technical field of terminal blocks, and discloses a terminal block structure for DHT, which comprises a terminal block, a copper bar is arranged at the bottom of the terminal block, an embedded nut is arranged at the middle position of the copper bar, a sealing ring is arranged in the notch outside the terminal block, and a T-shaped bushing is arranged in the notch at one side of the terminal block. The terminal block structure for DHT realizes the three-in-one of a reducer box body, a motor assembly box body and a motor controller, reduces the cost of split connection and realizes high integration; three short copper bars are used to realize high-voltage connection of the motor and the motor controller, traditional high-voltage wiring harness is cancelled, reliability is improved, the DHT hybrid box shell is sealed through two layers of sealing rings of the terminal block, oil and water in the hybrid box shell can be prevented from going out to the motor controller, complete sealing is realized, and the safety of the terminal block is improved.

Description

Technical Field

[0001] This application relates to the field of terminal block technology, specifically a terminal block structure for DHT. Background Technology

[0002] In recent years, the government has continuously increased its support for the new energy vehicle industry, and the new energy vehicle market is shifting from policy-driven to market-driven. More and more companies are entering the new energy vehicle field, leading to a diversification of brands and products. Technology, the industrial chain, and business models are evolving synergistically. With rising oil prices, the economics of new energy vehicles are becoming more aligned with mass market needs, and the DHT (Dynamic Hyperthermonic Hydroelectric) powertrain is suitable for both pure electric and hybrid vehicles. A junction box is a type of socket, a multi-socket socket that combines multiple outlets. In the DHT powertrain, the reducer housing, motor assembly housing, and motor controller require a junction box for connection.

[0003] The existing junction boxes for DHT electric hybrid assemblies have low heat dissipation efficiency, which can easily cause damage to the junction boxes themselves. In addition, the overall structure of the junction boxes is not tight and the sealing effect is not good, resulting in a large overall structure of the junction boxes, which is inconvenient to use. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a junction box structure for DHT, which has the advantages of high heat dissipation and compact structure, and solves the problem of easy damage to the junction box.

[0005] To achieve the above objectives, this application provides the following technical solution: a terminal block structure for DHT, including a terminal block, a copper busbar installed at the bottom of the terminal block, an embedded nut installed in the middle of the copper busbar, a sealing ring installed in the groove on the outer side of the terminal block, and a T-shaped bushing installed in the groove on one side of the terminal block.

[0006] Preferably, several groups of copper busbars are compactly and evenly distributed at the bottom of the terminal block.

[0007] Preferably, two sets of sealing rings are provided.

[0008] In summary, this application includes at least one of the following beneficial effects:

[0009] 1. This DHT uses a terminal block structure. The three-phase lines of the motor are connected to the three-phase lines of the motor controller through copper busbars. Its DC resistance is 40-60% lower than that of cables of the same cross-sectional area, and its current carrying capacity is increased by 30-50% at the same temperature rise. The connection through copper busbars has better electrical performance advantages. At the same time, the copper busbars also have better heat dissipation capacity, preventing the terminal block from being damaged by melting due to high temperature.

[0010] 2. The DHT uses a terminal block structure to achieve high integration. The terminal block combines the reducer housing, motor assembly housing and motor controller into one unit, which is beneficial for the overall vehicle space layout.

[0011] 3. This DHT uses a terminal block structure, replacing traditional high-voltage wiring harnesses with copper busbars, reducing line loss and saving energy; it also reduces the number of separate connection components (such as waterproof connectors, independent terminal blocks, junction box end caps, etc.), eliminating the need for regular tightening and inspection of many external parts such as bolts, thus reducing maintenance costs.

[0012] 4. The DHT uses a terminal block structure, which can achieve sealed protection for the reducer housing, motor assembly housing, and motor controller, solving the problem of sealing high-voltage components in hybrid oil and electric environments. Attached Figure Description

[0013] Figure 1 This is a front view of the junction box of this application;

[0014] Figure 2 This is a bottom view of the junction box in this application;

[0015] Figure 3 This is a top view of the junction box of this application.

[0016] The components include: 1. Terminal block; 2. Copper busbar; 3. Embedded nut; 4. Sealing ring; 5. T-type bushing. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] Please see Figure 1-3 A DHT terminal block structure includes a terminal block 1, with copper busbars 2 installed at the bottom of the terminal block 1, and several groups of copper busbars 2 are compactly and evenly distributed at the bottom of the terminal block 1.

[0019] The copper busbar 2 is arranged in a compact and even manner according to the installation positions of the three-phase wires of the motor and motor controller. The terminal block 1 is designed according to the limited internal space after the integration of the reducer housing, motor assembly housing and motor controller.

[0020] A nut 3 is installed in the middle of the copper busbar 2.

[0021] The embedded nut 3 on the terminal block 1 is used to install the three-phase high-voltage lines of the motor and motor controller onto the terminal block 1 with bolts, and the conductivity is achieved through the copper busbar 2.

[0022] A sealing ring 4 is installed in the groove on the outside of the terminal block 1, and two sets of sealing rings 4 are provided.

[0023] The design incorporates two layers of sealing rings to achieve a tight seal after the motor and motor controller are integrated, preventing oil and water from entering the motor controller from the reducer housing and motor assembly housing, which could lead to internal failure of the motor controller.

[0024] A T-shaped bushing 5 is installed in the slot on one side of the terminal block 1.

[0025] Terminal block 1 is fixed to the motor controller with three bolts and limited by locating pin holes. T-shaped bushings 5 ​​are embedded in the three bolt holes to prevent the terminal block from loosening.

[0026] In use, the terminal block integrates the reducer housing, motor assembly housing, and motor controller into one unit, reducing the cost of separate connections and achieving high integration. Three shorter copper busbars 2 are used to achieve high-voltage connection between the motor and the motor controller, eliminating the need for traditional high-voltage wiring harnesses and improving reliability. The DHT hybrid housing is sealed by two layers of sealing rings 4 on the terminal block, with a compression rate of 19.85% and a filling rate of 95.8%, which completely prevents oil and water from leaking into the motor controller, achieving complete sealing.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal block structure for DHTs, comprising a terminal block (1), characterized in that: A copper busbar (2) is installed at the bottom of the terminal block (1), an embedded nut (3) is installed in the middle of the copper busbar (2), a sealing ring (4) is installed in the groove on the outside of the terminal block (1), and a T-shaped bushing (5) is installed in the groove on one side of the terminal block (1).

2. The patch panel structure for DHT according to claim 1, wherein: Several sets of copper busbars (2) are compactly and evenly distributed at the bottom of the terminal block (1).

3. The DHT terminal block structure according to claim 1, characterized in that: The sealing ring (4) is provided in two sets.

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