Micro line-to-board horizontal female connector for power battery
By setting up a support platform and partition in the horizontal female connector of the power battery to increase the creepage distance, the problems of arc discharge and leakage between terminals are solved, and the assembly height is increased to meet the application requirements of larger assembly spaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG HONGRU TECH CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
The existing horizontal female connector for power batteries has too short a creepage distance between terminals, which leads to arcing and leakage. In addition, the narrow assembly space makes it difficult to adapt to application scenarios with higher assembly heights.
Design a miniature wire-to-board horizontal female connector for power batteries. The connector uses a support platform to support the upper and lower terminals, and sets a partition and isolation part on the support platform to increase the creepage distance. At the same time, a support structure is set on the outer side of the tail end face of the female housing to increase the assembly height.
It effectively blocks electrical interference between terminals, avoids arc discharge and leakage, and increases the assembly height, making it suitable for applications with larger assembly spaces.
Smart Images

Figure CN224458686U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connection device technology, and in particular to a miniature wire-to-board horizontal female connector for use in power batteries. Background Technology
[0002] Connectors are crucial components for achieving electrical connections, primarily transmitting power or electrical signals. Power battery connectors in products like new energy vehicles need to withstand greater forces than those in general products, thus requiring higher structural strength. Existing horizontal female connectors of this type have several problems. For example, to ensure even and neat arrangement of the double-layer terminals, the connecting part of the upper terminal is typically bent horizontally before being extended, offsetting the connecting part from the mating part, thus achieving a neat and even arrangement with the lower terminal. However, this bending reduces the distance between the bent part of the upper terminal and the mating part of the next adjacent terminal. In relatively crowded terminals, this can easily lead to arcing and leakage due to insufficient creepage distance. Additionally, support structures are often incorporated into the female housing to support and isolate the upper and lower male terminals, improving assembly stability and isolation performance. However, these female housings typically employ a recessed structure, meaning the support structure is recessed within the tail end face of the female housing, with only the connecting part of the male terminal extending beyond the tail end face. This results in a relatively narrow assembly space, making it difficult to adapt to applications with higher assembly heights. Utility Model Content
[0003] This invention addresses the shortcomings of existing technologies, such as arcing and leakage due to insufficient creepage distance caused by the small distance between terminals. It provides a miniature wire-to-board horizontal female connector for power batteries with a more reasonable structural design, capable of blocking electrical interference between terminals, and with a larger assembly height.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a micro wire-to-board horizontal female connector for power batteries, comprising a female housing and male terminals. The female housing has two layers of terminal holes, the upper layer corresponding to several first male terminals and the lower layer corresponding to several second male terminals. The first and second male terminals each include a plug-in portion and a connecting portion, the plug-in portion and the connecting portion are connected, and each male terminal passes through the plug-in portion into the terminal hole and extends out of the tail end face of the female housing. A support platform is provided at the tail end of the female housing, the support platform protruding beyond the tail end face of the female housing. Each first male terminal extends out of the terminal hole above the support platform and is supported by the support platform so that its connecting portion extends downward over the support platform. Each second male terminal extends out of the terminal hole below the support platform and extends downward. A partition is provided between adjacent terminal holes on the support platform to separate adjacent first male terminals.
[0005] Furthermore, the insertion ends of each first male terminal are bent to the same side to form a bent portion, and the connecting portion is connected to the end of the bent portion. The insertion portions of adjacent first male terminals are separated from the bent portions by a partition.
[0006] Furthermore, the insertion end and bending portion of each first male terminal are pressed against the support platform, and the partition plate protrudes upward on the support platform to separate the insertion portion and bending portion of adjacent first male terminals.
[0007] Furthermore, the top of the partition extends horizontally to the side to form a reinforcing rib, which is connected to the tail end face of the mother shell.
[0008] Furthermore, an isolation section is provided between adjacent terminal holes below the support platform to separate adjacent second male terminals from each other.
[0009] Furthermore, a reinforcing groove and a snap-fit groove are provided on the side of the mother shell. The reinforcing groove is close to the tail of the mother shell and opens downward, while the snap-fit groove is close to the front of the mother shell and is recessed inward.
[0010] Furthermore, the two end faces of the support platform extend outward to connect with the mother shell to form a reinforced support portion, which reinforces the support platform.
[0011] Furthermore, locking portions are provided on both sides of the insertion end of each second male terminal. The locking portions extend outward and are locked inside the female housing by the isolation portion, thereby strengthening the fixation of the first male terminal.
[0012] This invention uses a support platform to support and isolate the upper and lower layers of terminals. A partition is placed between adjacent terminal holes on the support platform to separate the adjacent first terminals on the upper layer. This increases the creepage distance between terminals, effectively blocking electrical interference and preventing arcing and leakage caused by insufficient creepage distance due to overcrowding. Furthermore, by positioning the support platform outside the tail end face of the female housing, a convex support structure is formed for the male terminals. This provides more effective support for the male terminals and increases the assembly height, making it ideal for applications requiring significant assembly height. Attached Figure Description
[0013] Figure 1 This is a structural diagram of the present utility model;
[0014] Figure 2 This is a structural diagram of the mother shell of this utility model;
[0015] Figure 3 This is a structural diagram of the mother shell of this utility model from another angle;
[0016] Figure 4This is a structural diagram showing the mating state of the first and second terminals.
[0017] In the figure, 1 is the female shell, 11 is the terminal hole, 12 is the tail end face, 13 is the reinforcing groove, 14 is the snap-fit groove, 21 is the first male terminal, 211 is the insertion part, 212 is the connecting part, 213 is the bending part, 22 is the second male terminal, 221 is the insertion part, 222 is the connecting part, 223 is the locking part, 3 is the support platform, 4 is the partition, 41 is the reinforcing rib, and 5 is the isolation part. Detailed Implementation
[0018] Reference Figures 1-4 A micro wire-to-board horizontal female connector for power batteries includes a female housing 1 and male terminals. The female housing 1 has two layers of terminal holes 11, the upper layer corresponding to several (e.g., five) first male terminals 21, and the lower layer corresponding to several second male terminals 22. Figure 1 and Figure 4 (Based on the perspective of the viewpoint); the first male terminal 21 and the second male terminal 22 respectively include plug-in portions 211 and 221 and connecting portions 212 and 222. The plug-in portion 211 is connected to the connecting portion 212, and the plug-in portion 221 is connected to the connecting portion 222. Each male terminal passes through the plug-in portion 211 and 221 in the terminal hole 11 and extends out of the tail end face 12 of the mother shell 1. A support platform 3 is provided at the tail of the mother shell 1. The support platform 3 protrudes beyond the tail end face 12 of the mother shell 1. Each first male terminal 21 extends out of the terminal hole 11 above the support platform 3 and is supported by the support platform 3 so that its connecting portion 212 extends downward over the support platform to connect to the circuit board. Each second male terminal 223 extends out of the terminal hole 11 below the support platform and extends downward to connect to the circuit board. A partition 4 is provided between adjacent terminal holes 11 on the support platform 3 to separate adjacent first male terminals 21 from each other. This increases the creepage distance between terminals, effectively blocking electrical interference between terminals and preventing arcing and leakage caused by insufficient creepage distance due to crowded terminals.
[0019] The ends of the insertion portions 211 of each first male terminal 21 are bent toward the same side to form a bent portion 213. The connecting portion 212 is connected to the end of the bent portion 213 so as to be staggered from the connecting portion 222 of the second male terminal 22. The insertion portions 211 and bent portions 213 of adjacent first male terminals 21 are separated by a partition 4.
[0020] The ends of the insertion portion 211 and the bending portion 213 of each first male terminal 21 are pressed against the support platform 3, and the partition 4 protrudes upward on the support platform 3 to separate the insertion portion 211 and the bending portion 213 of adjacent first male terminals 21.
[0021] The top of the partition 4 protrudes horizontally to the side to form a reinforcing rib 41, which is connected to the tail end face 12 of the mother shell 1 to enhance the structural strength of the partition 4.
[0022] An isolation section 5 is provided between adjacent terminal holes 11 below the support platform 3, and the adjacent second male terminals 22 are separated from each other by the isolation section 5.
[0023] A reinforcing groove 13 and a snap-fit groove 14 are provided on the side of the mother shell 1. The reinforcing groove 13 is located near the tail of the mother shell 1 and opens downwards, while the snap-fit groove 14 is located near the front of the mother shell 1 and opens downwards to the bottom wall (within the range of...). Figure 3 (Referring to the perspective). By opening the snap-fit groove 14 downwards to the bottom wall, during mold production, the snap-fit groove 14 and the reinforcing groove 13 on the same side can use a single, integrated mold slider in the same direction, allowing them to open the mold in the same direction. This reduces the number of mold parts and production costs. Simultaneously, reducing the number of sliders increases production stability. Without this design, an additional slider would be required for injection molding due to the different mold opening directions.
[0024] The support platform 3 extends outward from both ends to connect with the mother shell 1 to form a reinforced support portion, which reinforces the support platform 3.
[0025] A locking part 223 is provided on both sides of the end of the insertion part 222 of each second male terminal 22. The locking part 223 extends outward and is locked inside the female housing 1 by the isolation part 5, which plays the role of strengthening the fixation of the first male terminal 22.
[0026] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.
Claims
1. A micro wire-to-board horizontal female connector for power batteries, comprising a female housing and male terminals, wherein the female housing has upper and lower layers of terminal holes, the upper layer corresponding to a plurality of first male terminals and the lower layer corresponding to a plurality of second male terminals; the first and second male terminals each include a plug-in portion and a connecting portion, the plug-in portion being connected to the connecting portion, and each male terminal passing through the plug-in portion and extending out of the tail end face of the female housing, characterized in that: A support platform is provided at the tail of the mother shell. The support platform protrudes beyond the tail end face of the mother shell. Each first male terminal extends out from the terminal hole above the support platform and is supported by the support platform so that its connecting part passes downward over the support platform. Each second male terminal extends out from the terminal hole below the support platform and extends downward. A partition is provided between adjacent terminal holes on the support platform to separate adjacent first male terminals.
2. The miniature wire-to-board horizontal female connector for power batteries according to claim 1, characterized in that: The insertion end of each first male terminal is bent to the same side to form a bent portion, and the connecting portion is connected to the end of the bent portion. The insertion portion of adjacent first male terminals is separated from the bent portion by a partition.
3. The micro-wire-to-board horizontal female connector for power battery according to claim 2, characterized in that: The insertion end and bending part of each first male terminal are pressed against the support platform, and the partition plate protrudes upward on the support platform to separate the insertion part and bending part of adjacent first male terminals.
4. The micro-wire-to-board female connector for power battery of claim 1, wherein: The top of the partition extends horizontally to the side to form a reinforcing rib, which is connected to the tail end face of the mother shell.
5. The micro-wire-to-board female connector for power battery according to claim 3, characterized in that: An isolation section is provided between adjacent terminal holes below the support platform to separate adjacent second male terminals from each other.
6. The micro-male connector for power battery according to claim 1, characterized in that: A reinforcing groove and a snap-fit groove are provided on the side of the mother shell. The reinforcing groove is close to the tail of the mother shell and opens downward, while the snap-fit groove is close to the front of the mother shell and is recessed inward.
7. The micro-male connector for power battery according to claim 1, characterized in that: The support platform extends outward from both ends to connect with the main shell, forming a reinforced support section. The support platform is reinforced and supported by the reinforced support sections on both sides.
8. The miniature wire-to-board horizontal female connector for power batteries according to claim 5, characterized in that: A locking part is provided on both sides of the end of the plug portion of each second male terminal. The locking part extends outward and is locked inside the female housing by the isolation part.