A dc-dc converter waterproof ground terminal

Abstract

This utility model belongs to the field of automotive parts technology, and particularly relates to a waterproof grounding terminal for a DC-DC converter. It includes a terminal housing, a terminal body, a connector housing, a through-hole connector, and a top cover. The connector housing is mounted on the upper end of the terminal housing. The terminal body has threaded holes for installation. The top cover is mounted at the upper opening of the connector housing. A first waterproof ring is installed at the bottom of the terminal housing, and a second waterproof ring is installed at the upper end of the terminal housing at the connection point between the terminal housing and the connector housing. A third waterproof ring is installed between the upper outer wall of the connector housing and the inner wall of the top cover. The installation of the terminal housing and connector housing in this utility model is achieved through the terminal body and the through-hole connector. This design allows for the design of the terminal housing and connector housing with a highly waterproof structure. Combined with the first, second, and third waterproof rings, the waterproof effect at the connection gap is enhanced, thereby improving the overall waterproof function of the device.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a waterproof grounding terminal for a DC-DC converter. Background Technology

[0002] A DC-DC converter is a voltage converter that transforms an input voltage to effectively output a fixed voltage. It is a key component connecting power input, output, and control signals. DC-DC converter terminals are typically installed using mechanical structures such as threaded fittings or snap-fit ​​mechanisms. As a critical component, it requires high levels of safety protection against electric shock and water.

[0003] While existing DC-DC converter terminals use waterproof housings and sealing rings to provide waterproofing, the housing structure design cannot meet both requirements in addition to waterproofing, as it also needs to be easy to disassemble and maintain. Therefore, DC-DC converter terminals still have the problem of not being able to meet waterproofing requirements.

[0004] This invention provides a waterproof grounding terminal for a DC-DC converter to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A waterproof grounding terminal for a DC-DC converter includes a terminal housing, a terminal body, a connector housing, a socket connector, and a top cover. The terminal body is installed inside the terminal housing, the head of the socket connector is installed inside the connector housing, the connector housing is installed on the upper end of the terminal housing, and the head of the socket connector contacts the terminal body. The terminal body has a threaded hole for installation. The top cover is installed at the upper opening of the connector housing. A first waterproof ring is installed at the bottom of the terminal housing, a second waterproof ring is installed at the upper end of the terminal housing at the connection between the terminal housing and the connector housing, and a third waterproof ring is installed between the upper outer wall of the connector housing and the inner wall of the top cover.

[0006] As a preferred embodiment, the outer end of the connector housing is provided with a flange, and the upper cover is provided with at least two rocker plates. The lower end of the rocker plate extends to the lower part of the flange and is provided with a latch, and the upper end of the latch abuts against the lower end of the flange.

[0007] As a preferred embodiment, the lower end face of the flange is inclined upward from the outside to the inside, and the upper end face of the latch is an inclined surface that fits against the lower end face of the flange.

[0008] As a preferred embodiment, the connector housing is provided with a connecting clip, and a soft rope is connected to the top cover. The end of the soft rope passes through the connecting clip and is connected to a limit block.

[0009] As a preferred embodiment, a limiting plate is provided at the upper end of the terminal housing, the limiting plate has an upward-facing groove, and a limiting protrusion is provided at the outer end of the connector housing, with the lower end of the limiting protrusion extending into the groove.

[0010] As a preferred embodiment, the top edge of the terminal body 2 is chamfered.

[0011] Compared with existing technologies, the advantages of this utility model are: 1. The terminal housing, connector housing, and top cover designed in this utility model facilitate waterproofing at the connection between the terminal body and the hole connector. The installation between the terminal housing and the connector housing is achieved by the terminal body and the hole connector. Therefore, no additional connection and fixing structure is needed between the terminal housing and the connector housing. It is easy to design the terminal housing and the connector housing into a structure with high waterproof performance. In addition, the first waterproof ring, the second waterproof ring, and the third waterproof ring enhance the waterproof effect at the connection gap of the equipment, thereby improving the waterproof function of the entire equipment.

[0012] 2. In this invention, both the flange and the latch have beveled surfaces for contact, and the beveled latch design provides higher holding force than a flat design. 3. The connecting clip, soft rope and limiting block designed in this utility model can prevent the top cover from completely detaching from the connector housing when the upper opening area of ​​the connector housing is opened, thus avoiding the top cover falling into the narrow space for installing electrical components inside the vehicle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention.

[0014] Figure 2 This is a schematic diagram showing the positional relationship between the limiting plate and the limiting protrusion of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0016] Figure 4 This is a schematic diagram showing the positional relationship between the latch and the flange of this utility model.

[0017] Figure 5 This is a schematic diagram of the terminal housing, connector housing, and top cover of this utility model.

[0018] The labels in the diagram are as follows: 1. Terminal housing; 2. Terminal body; 3. Connector housing; 4. Hole connector; 5. Top cover; 6. First waterproof ring; 7. Second waterproof ring; 8. Third waterproof ring; 9. Flange; 10. Rocker; 11. Lock; 12. Connecting clip; 13. Soft rope; 14. Limiting block; 15. Limiting plate; 16. Groove; 17. Limiting protrusion; 18. Threaded hole. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following embodiments or drawings are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] A waterproof grounding terminal for a DC-DC converter, such as Figures 1 to 5 As shown, the device includes a terminal housing 1, a terminal body 2, a connector housing 3, a hole connector 4, and a top cover 5. The terminal body 2 is installed inside the terminal housing 1, the head of the hole connector 4 is installed inside the connector housing 3, the connector housing 3 is installed on the upper end of the terminal housing 1, and the head of the hole connector 4 contacts the terminal body 2. The terminal body 2 has a threaded hole 18 for installation. The top cover 5 is installed at the upper opening of the connector housing 3. A first waterproof ring 6 is installed at the bottom of the terminal housing 1, a second waterproof ring 7 is installed at the upper end of the terminal housing 1 at the connection between the terminal housing 1 and the connector housing 3, and a third waterproof ring 8 is installed between the upper outer wall of the connector housing 3 and the inner wall of the top cover 5.

[0021] Installation steps between terminal housing 1, connector housing 3 and top cover 5: Place the hole connector 4 on the terminal housing 1, and use bolts to insert into the threaded holes 18. The bolts fix the head of the hole connector 4 to the upper end of the terminal body 2. Due to the installation relationship between the terminal body 2 and the terminal housing 1, and the installation relationship between the hole connector 4 and the connector housing 3, the purpose of installing and fixing the connector housing 3 on the terminal housing 1 is achieved. Finally, install the top cover 5 on the connector housing 3 to complete the installation of the equipment.

[0022] The terminal housing 1, connector housing 3, and top cover 5 facilitate waterproofing at the connection between the terminal body 2 and the hole connector 4. The installation between the terminal housing 1 and the connector housing 3 is achieved by the terminal body 2 and the hole connector 4. Therefore, no additional connection and fixing structure is needed between the terminal housing 1 and the connector housing 3. It is easy to design the terminal housing 1 and the connector housing 3 into a structure with high waterproof performance. In addition, the first waterproof ring 6, the second waterproof ring 7, and the third waterproof ring 8 enhance the waterproof effect at the equipment connection gap, thereby improving the overall waterproof function of the equipment.

[0023] The connector housing 3 and the socket connector 4 are injection molded as a single unit. Specifically, the socket connector 4 is placed inside the injection molding machine, and the connector housing 3 is injection molded onto the outside of the socket connector 4. The head of the socket connector 4 is used to connect to the terminal body 2, and the tail of the socket connector 4 has a crimping wing design for connecting to the wire harness. The tail of the socket connector 4 is located outside the connector housing 3. After crimping the wire harness, the area of ​​the socket connector 4 exposed outside the connector housing 3 can be wrapped with heat shrink tubing to provide a waterproof effect. The first waterproof ring 6 has a clearance fit with the groove at the bottom of the terminal housing 1, and the surface of the first waterproof ring 6 has raised ribs for installation and fixation.

[0024] like Figure 1 and Figure 4 As shown, the outer end of the connector housing 3 is provided with a flange 9, and the upper cover 5 is provided with at least two rocker plates 10. The lower end of the rocker plate 10 extends to the lower part of the flange 9 and is provided with a latch 11. The upper end of the latch 11 abuts against the lower end of the flange 9. The lower end surface of the flange 9 is inclined upward from the outside to the inside, and the upper end surface of the latch 11 is an inclined surface that fits against the lower end surface of the flange 9.

[0025] Both the flange 9 and the latch 11 have beveled surfaces for contact, and the beveled latch design provides greater holding force than a flat design. The optimal number of rocker arms 10 is two, symmetrically distributed on the side of the upper cover 5. The rocker arm 10 structure can deform within the allowable range. Pressing the upper end of the rocker arm 10 separates the latch 11 from the flange 9, allowing the upper cover 5 to be pulled up to separate from the connector housing 3.

[0026] like Figure 1 As shown, a connecting clip 12 is provided on the connector housing 3, and a soft rope 13 is connected to the upper cover 5. The tail end of the soft rope 13 passes through the connecting clip 12 and is connected to a limit block 14.

[0027] The design of the connecting clip 12, the soft rope 13 and the limiting block 14 can prevent the top cover 5 from completely separating from the connector housing 3 when the upper opening area of ​​the connector housing 3 is opened, thus preventing the top cover 5 from falling into the narrow space for installing electrical components inside the vehicle.

[0028] like Figure 2 As shown, a limiting plate 15 is provided on the upper end of the terminal housing 1, and the limiting plate 15 has an upward-facing groove 16. A limiting protrusion 17 is provided on the outer end of the connector housing 3, and the lower end of the limiting protrusion 17 extends into the groove 16.

[0029] The limiting plate 15 and the limiting protrusion 17 can ensure that the connector housing 3 is installed on the terminal housing 1 at a specified angle. This not only avoids the situation where the angle of the connector housing 3 deflects when it is installed, but also allows for the identification of terminal bodies 2 and hole connectors 4 with different installation positions and purposes by pre-setting different combinations of the limiting plate 15 and the limiting protrusion 17 in the same vehicle space when multiple of this utility model need to be installed.

[0030] like Figure 3 As shown, the top edge of the terminal body 2 is chamfered. The chamfered design of the terminal body 2 facilitates the installation and positioning of the connector housing 3.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A waterproof grounding terminal for a DC-DC converter, characterized in that: The device includes a terminal housing (1), a terminal body (2), a connector housing (3), a hole connector (4), and a top cover (5). The terminal body (2) is installed inside the terminal housing (1), the head of the hole connector (4) is installed inside the connector housing (3), the connector housing (3) is installed on the upper end of the terminal housing (1), the head of the hole connector (4) contacts the terminal body (2), the terminal body (2) has a threaded hole (18) for installation, the top cover (5) is installed at the upper opening of the connector housing (3), the bottom of the terminal housing (1) is equipped with a first waterproof ring (6), the upper end of the terminal housing (1) is equipped with a second waterproof ring (7) located at the connection between the terminal housing (1) and the connector housing (3), and a third waterproof ring (8) is installed between the upper outer wall of the connector housing (3) and the inner wall of the top cover (5).

2. The waterproof grounding terminal for a DC-DC converter according to claim 1, characterized in that: The outer end of the connector housing (3) is provided with a flange (9), and the upper cover (5) is provided with at least two rocker plates (10). The lower end of the rocker plate (10) extends to the lower part of the flange (9) and is provided with a buckle (11). The upper end of the buckle (11) abuts against the lower end of the flange (9).

3. A waterproof grounding terminal for a DC-DC converter according to claim 2, characterized in that: The lower end face of the flange (9) is inclined upward from the outside to the inside, and the upper end face of the latch (11) is an inclined surface that fits against the lower end face of the flange (9).

4. A waterproof grounding terminal for a DC-DC converter according to claim 1, characterized in that: The connector housing (3) is provided with a connecting clip (12), and a soft rope (13) is connected to the upper cover (5). The end of the soft rope (13) passes through the connecting clip (12) and is connected to a limit block (14).

5. A waterproof grounding terminal for a DC-DC converter according to claim 1 or 4, characterized in that: The terminal housing (1) is provided with a limiting plate (15) at the upper end. The limiting plate (15) has an upward-facing groove (16). The connector housing (3) is provided with a limiting protrusion (17) at the outer end. The lower end of the limiting protrusion (17) extends into the groove (16).

6. A waterproof grounding terminal for a DC-DC converter according to claim 1, characterized in that: The top edge of the terminal body (2) is chamfered.

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