A switched mode rectifier for charging an electric vehicle

Abstract

This utility model discloses a switch-mode rectifier for automotive charging, belonging to the field of automotive charging technology. It includes a rectifier housing, a wire harness plate snapped onto the surface of the housing, and a fixing block fixedly connected to the surface of the housing. A connecting wire harness is disposed on the surface of the wire harness plate, and an auxiliary plate is fixedly connected to the surface of the wire harness plate. A push rod is slidably disposed inside the rectifier housing. In use, when the wire harness plate needs to be connected, it is inserted into the mounting slot, allowing it to align with components inside the rectifier housing. During this process, the snap block is pushed by the surface of the wire harness plate, causing the snap block to move towards the direction of the connecting spring. When the wire harness plate continues to align but no longer contacts the snap block, the snap block loses pressure and returns to its original position under the action of the limiting block and the connecting spring, thus covering the wire harness plate for easy use.

Description

Technical Field

[0001] This utility model relates to the field of automotive charging technology, specifically a switch-mode rectifier for automotive charging. Background Technology

[0002] Automobiles are a common means of transportation, and new energy vehicles are those that use clean energy, offering advantages such as low noise and high environmental friendliness. During the charging of new energy vehicles, the switching-mode rectifier plays a crucial role. The rectifier's process of converting alternating current (AC) to direct current (DC) is fundamental to charging, and its function directly affects charging efficiency, power conversion quality, and system safety. In the use of rectifiers, as illustrated in Chinese patent application number 202021535079.5, filed on July 29, 2020, a bridge with improved heat dissipation is proposed. The rectifier is designed to facilitate heat dissipation of its internal components during operation and allows for easy disassembly and assembly of the rectifier housing, thus simplifying maintenance and user convenience. Another example is Chinese patent application number 202321490344.6, filed on June 13, 2023, which describes a high-efficiency heat-dissipating rectifier assembly. This assembly features a heat-conducting plate positioned beneath the chip, which is inserted into a base plate. The base plate contains water channels that utilize flowing water to remove heat, achieving rapid heat dissipation and improving wire efficiency and lifespan.

[0003] Before using the rectifier, the wiring harness board needs to be connected. However, the rectifier in the above application does not have the function of assisting in the connection of the wiring harness during use, which makes the wiring harness connection process complicated and may also cause the wiring harness to fall off, bringing unnecessary trouble to the use of the rectifier. Utility Model Content

[0004] The purpose of this utility model is to provide a switch-mode rectifier for automotive charging, in order to solve the problems mentioned in the background art, which are that the rectifier does not have the function of assisting in connecting the wiring harness during use, thus making the wiring harness connection process complicated and the wiring harness may fall off, causing unnecessary trouble for the use of the rectifier.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a switch-mode rectifier for automotive charging, comprising a rectifier housing, a wire harness plate being snapped onto the surface of the rectifier housing, and a fixing block being fixedly connected to the surface of the rectifier housing; a connecting wire harness being provided on the surface of the wire harness plate, and an auxiliary plate being fixedly connected to the surface of the wire harness plate; a push rod being slidably disposed inside the rectifier housing, and an installation groove corresponding to the wire harness plate being formed on the surface of the rectifier housing; and a locking block being slidably disposed inside the fixing block.

[0006] Preferably, the fixing blocks are symmetrically distributed on both sides of the rectifier housing, and the surface of the card block is fixedly connected to a limiting block, which is symmetrically distributed on both sides of the card block.

[0007] Preferably, the fixing block has a limiting groove inside, and the limiting groove corresponds one-to-one with the limiting block.

[0008] Preferably, the surface of the card block is inclined, and the card block penetrates the interior of the fixing block.

[0009] Preferably, a connecting spring that provides elastic reset is fixedly connected to the surface of the card block, and the other side of the connecting spring is fixedly connected to the inner wall of the limiting block, and a handle is fixedly connected to the upper surface of the card block.

[0010] Preferably, the push rods are symmetrically distributed on both sides of the mounting groove, and the surface of the rectifier housing is provided with deep grooves corresponding to the push rods.

[0011] Preferably, an auxiliary spring that provides elastic reset is fixedly connected to the surface of the push rod, and the other side of the auxiliary spring is fixedly connected to the inner wall of the rectifier housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the switch-mode rectifier for car charging adopts a novel structural design, the specific details of which are as follows:

[0013] (1) When the switch-mode rectifier for car charging needs to be connected to the wiring harness board during use, the wiring harness board is inserted into the mounting slot so that the wiring harness board is connected to the parts inside the rectifier housing. During this process, the locking block is pushed by the surface of the wiring harness board. The locking block drives the limiting block to move in the direction of squeezing the connecting spring. When the wiring harness board continues to connect and does not contact the locking block, the locking block loses pressure. At this time, the locking block returns to its original position under the action of the limiting block and the connecting spring. At this time, the locking block covers the wiring harness board, which facilitates the use of the wiring harness board.

[0014] Furthermore, during the movement of the card block, the limiting block will slide inside the limiting groove. The limiting block and the limiting groove restrict the movement distance of the card block, ensuring the stability of the card block's operation.

[0015] (2) When the wiring harness board needs to be repaired or replaced after a long period of use, the handle can be pulled directly to make the handle drive the locking block to move in the direction of squeezing the connecting spring. When the end of the locking block no longer presses the wiring harness board, the wiring harness board can be pulled out from the mounting slot. The operation process is simple and quick, and the work efficiency is high.

[0016] (3) In the process of connecting the wiring harness plate, the push rod of the switch mode rectifier for car charging is pushed by the auxiliary plate. At this time, the push rod moves inside the rectifier housing, and the auxiliary spring is squeezed. During the disassembly process, after the clip is moved away from the wiring harness plate by the handle, the auxiliary plate moves to the outside of the rectifier housing under the action of the push rod and the auxiliary spring. Finally, the push rod pushes the auxiliary plate and the wiring harness plate away from the rectifier housing. At this time, the push rod and the auxiliary spring play a role in assisting disassembly and improving work efficiency.

[0017] Furthermore, the push rods are symmetrically distributed on both sides of the mounting slot, corresponding one-to-one with the auxiliary plate, thus ensuring uniform pushing force and good disassembly assistance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure between the rectifier housing and the fixing block of this utility model;

[0019] Figure 2 This is a schematic diagram of the connection structure between the wire harness board and the auxiliary board of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the fixing block and the locking block of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing block of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the rectifier housing of this utility model;

[0023] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Rectifier housing; 2. Mounting slot; 3. Wiring harness plate; 4. Fixing block; 5. Auxiliary plate; 6. Locking block; 7. Handle; 8. Limiting block; 9. Limiting slot; 10. Connecting spring; 11. Push rod; 12. Deep groove; 13. Auxiliary spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides the following technical solution: a switch-mode rectifier for car charging.

[0027] Example 1: The set locking block 6 allows the wire harness board 3 to be quickly mated onto the rectifier housing 1, such as... Figures 1-4 As shown, the device includes a rectifier housing 1, a wire harness plate 3 is snapped onto the surface of the rectifier housing 1, and a fixing block 4 is fixedly connected to the surface of the rectifier housing 1; a connecting wire harness is provided on the surface of the wire harness plate 3, and an auxiliary plate 5 is fixedly connected to the surface of the wire harness plate 3; a push rod 11 is slidably provided inside the rectifier housing 1, and an installation groove 2 corresponding to the wire harness plate 3 is opened on the surface of the rectifier housing 1; a locking block 6 is slidably provided inside the fixing block 4.

[0028] Fixed blocks 4 are symmetrically distributed on both sides of the rectifier housing 1. Limiting blocks 8 are fixedly connected to the surface of the locking block 6, and the limiting blocks 8 are symmetrically distributed on both sides of the locking block 6. Limiting grooves 9 are opened inside the fixed blocks 4, and the limiting grooves 9 correspond one-to-one with the limiting blocks 8. The surface of the locking block 6 is inclined, and the locking block 6 passes through the interior of the fixed blocks 4. A connecting spring 10 that plays an elastic reset role is fixedly connected to the surface of the locking block 6, and the other side of the connecting spring 10 is fixedly connected to the inner wall of the limiting block 8. A handle 7 is fixedly connected to the upper surface of the locking block 6.

[0029] During use, when the wiring harness plate 3 needs to be connected, the wiring harness plate 3 is inserted into the mounting groove 2 on the surface of the rectifier housing 1, so that the wiring harness plate 3 aligns with the parts inside the rectifier housing 1. During this process, the locking block 6 is pushed by the surface of the wiring harness plate 3 and slides inside the fixing block 4. At the same time, the locking block 6 drives the limiting block 8 to move in the direction of pressing the connecting spring 10. When the wiring harness plate 3 continues to align and is no longer in contact with the locking block 6, the locking block 6 loses pressure. At this time, the locking block 6 returns to its original position under the action of the limiting block 8 and the connecting spring 10. At this time, the locking block 6 covers the wiring harness plate 3, which facilitates the use of the wiring harness plate 3. During the movement of the locking block 6, the limiting block 8 slides inside the limiting groove 9. The limiting block 8 and the limiting groove 9 limit the movement distance of the locking block 6 and ensure the stability of the locking block 6's operation.

[0030] When the wire harness board 3 needs to be inspected or replaced after a long period of use, the handle 7 can be pulled directly to make the handle 7 drive the locking block 6 to move in the direction of squeezing the connecting spring 10 again. When the end of the locking block 6 no longer presses the wire harness board 3, the wire harness board 3 can be pulled out from the mounting slot 2. The operation process is simple and quick, and the work efficiency is high.

[0031] Example 2: Unlike Example 1, the push rod 11 and auxiliary spring 13 assist in disassembly. Figure 5 and Figure 6As shown, push rods 11 are symmetrically distributed on both sides of the mounting groove 2. The surface of the rectifier housing 1 is provided with deep grooves 12 corresponding to the push rods 11. An auxiliary spring 13 that plays an elastic reset role is fixedly connected to the surface of the push rod 11, and the other side of the auxiliary spring 13 is fixedly connected to the inner wall of the rectifier housing 1.

[0032] During the connection of the wiring harness plate 3, the push rod 11 is pushed by the auxiliary plate 5. At this time, the push rod 11 moves inside the rectifier housing 1, and the auxiliary spring 13 is squeezed. During the disassembly process, after the latch 6 is moved away from the wiring harness plate 3 by the handle 7, the auxiliary plate 5 moves to the outside of the rectifier housing 1 under the action of the push rod 11 and the auxiliary spring 13. Finally, the push rod 11 pushes the auxiliary plate 5 and the wiring harness plate 3 away from the rectifier housing 1. At this time, the push rod 11 and the auxiliary spring 13 play a role in assisting disassembly and improving work efficiency. The push rod 11 is symmetrically distributed on both sides of the mounting groove 2, corresponding to the auxiliary plate 5 one by one. Therefore, the pushing force of the push rod 11 is uniform, and the disassembly effect is good.

[0033] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A switch-mode rectifier for car charging, comprising a rectifier housing (1), wherein a wire harness plate (3) is snapped onto the surface of the rectifier housing (1), and a fixing block (4) is fixedly connected to the surface of the rectifier housing (1). Its features are: The surface of the wire harness plate (3) is provided with connecting wire harnesses, and an auxiliary plate (5) is fixedly connected to the surface of the wire harness plate (3). A push rod (11) is slidably disposed inside the rectifier housing (1), and a mounting groove (2) corresponding to the wire harness plate (3) is opened on the surface of the rectifier housing (1). The fixing block (4) has a sliding locking block (6) inside.

2. The switch-mode rectifier for automotive charging according to claim 1, characterized in that: The fixing blocks (4) are symmetrically distributed on both sides of the rectifier housing (1), and the surface of the card block (6) is fixedly connected to the limiting blocks (8), and the limiting blocks (8) are symmetrically distributed on both sides of the card block (6).

3. A switch-mode rectifier for automotive charging according to claim 2, characterized in that: The fixed block (4) has a limiting groove (9) inside, and the limiting groove (9) corresponds one-to-one with the limiting block (8).

4. A switch-mode rectifier for automotive charging according to claim 1, characterized in that: The surface of the card block (6) is inclined, and the card block (6) penetrates the interior of the fixing block (4).

5. A switch-mode rectifier for automotive charging according to claim 2, characterized in that: The surface of the card block (6) is fixedly connected to a connecting spring (10) that plays an elastic reset role, and the other side of the connecting spring (10) is fixedly connected to the inner wall of the limiting block (8), and a handle (7) is fixedly connected to the upper surface of the card block (6).

6. A switch-mode rectifier for automotive charging according to claim 1, characterized in that: The push rods (11) are symmetrically distributed on both sides of the mounting groove (2), and the surface of the rectifier housing (1) is provided with deep grooves (12) corresponding to the push rods (11).

7. A switch-mode rectifier for automotive charging according to claim 1, characterized in that: The surface of the push rod (11) is fixedly connected to an auxiliary spring (13) that plays an elastic reset role, and the other side of the auxiliary spring (13) is fixedly connected to the inner wall of the rectifier housing (1).

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