Connector
By employing an interlocking structure of the first and second housings in the connector, and utilizing the overlapping partition portions to extend the creepage distance, the contradiction between creepage distance and connector size in the prior art is resolved, and the creepage distance is extended without increasing the volume.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2025-10-27
- Publication Date
- 2026-05-15
AI Technical Summary
In the prior art, increasing the protruding end of the partition to extend the creepage distance between the terminal connectors leads to an overall increase in connector size, making it difficult to achieve sufficient creepage distance while suppressing the increase in size.
The connector employs a mating structure of a first housing and a second housing. By providing a first and a second partition between the terminal portions, they are arranged to overlap between a pair of terminal portions, thereby extending the creepage distance without increasing the connector's size.
This achieves an effective extension of the creepage distance between terminals without increasing the connector size, thus avoiding the problem of large size.
Smart Images
Figure CN122051697A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a connector that holds a terminal portion by means of an upper housing and a lower housing. Background Technology
[0002] Patent Document 1 discloses a connector comprising: a lower housing having a plurality of terminal receiving slots divided by partitions; a plurality of terminal connectors respectively received in the plurality of terminal receiving slots; and an upper housing assembled to the lower housing in such a way as to close the openings of the terminal receiving slots. A groove is formed on the upper housing to receive the protruding ends of the partitions.
[0003] Patent Document 1: Japanese Patent Application Publication No. 2021-72148 Summary of the Invention
[0004] In the technology described in Patent Document 1, it is preferable to be able to increase the creepage distance between the terminal connectors. If the protruding end of the partition portion is increased, the creepage distance between the terminal connectors becomes longer, but the overall connector becomes larger.
[0005] The purpose of this invention is to provide a connector that can suppress the increase in size while extending the creepage distance between terminals.
[0006] To address the aforementioned issues, a connector according to one embodiment of the present invention comprises: a first housing having a first mating portion; a second housing having a second mating portion that mates with the first mating portion; and a plurality of terminal portions sandwiched between the first mating portion and the second mating portion. The first mating portion has a plurality of first partition portions extending between the plurality of terminal portions. The second mating portion has a plurality of second partition portions extending between the plurality of terminal portions. The first partition portions and the second partition portions are arranged overlapping between a pair of terminal portions.
[0007] Invention Effects
[0008] According to the present invention, a connector that can suppress enlargement while extending the creepage distance between terminals can be provided. Attached Figure Description
[0009] Figure 1 This is a perspective view of the connector in the embodiment.
[0010] Figure 2 This is a three-dimensional view of the upper shell as seen from below.
[0011] Figure 3 This is a three-dimensional view of the lower shell as seen from above.
[0012] Figure 4 yes Figure 1 The connector shown is a cross-sectional view taken along line segment AA. Detailed Implementation
[0013] Figure 1 This is a perspective view of connector 10 in an embodiment. Figure 2 This is a perspective view of the upper shell 12 as seen from below. Figure 3 This is a perspective view of the lower housing 14 as seen from above. The connector 10 is provided, for example, in an on-board device such as an ECU, and is capable of connecting multiple wires.
[0014] The connector 10 includes an upper housing 12, a lower housing 14, and terminal portions described later. The upper housing 12 and the lower housing 14 are positioned opposite each other in the vertical direction and clamp and hold the conductive terminal portions. The connector 10 has a plurality of parallel ports 16. Therefore, the upper housing 12 and the lower housing 14 have a structure that insulates the terminal portions disposed in the plurality of ports 16 from each other.
[0015] Furthermore, the use of connector 10 is not limited to the configuration of upper housing 12 on top and lower housing 14 on the bottom. For example, it can be reversed, or the ports 16 can be arranged vertically.
[0016] Figure 2 The upper housing 12 shown has a locking portion 20, an engaging portion 22, and a first fitting portion 24. The locking portion 20 is formed in the form of holes on both sides of the upper housing 12 and engages with the lower housing 14. The engaging portion 22 is formed in the form of claws on both sides of the upper housing 12 and engages with the lower housing 14.
[0017] Multiple first fitting portions 24 are formed side-by-side on the inner surface of the upper housing 12. Each first fitting portion 24 extends along its respective terminal portion and is formed as a protrusion. Furthermore, Figure 2 and Figure 3 The first fitting portion 24 and the second fitting portion 30 are shown in a simplified manner; details will be described later.
[0018] Figure 3 The lower housing 14 shown has ports 16, locking portions 26, engaging portions 28, and a second fitting portion 30. Multiple ports 16 are open and arranged side-by-side on the front of the lower housing 14. The locking portions 26 are formed in a claw shape on both sides of the lower housing 14 and engage with the locking portions 20.
[0019] The engaging portion 28 is formed in a stepped shape on both sides of the lower housing 14 and engages with the engaging portion 22. Multiple second engaging portions 30 are formed side-by-side on the inner surface of the lower housing 14. The second engaging portions 30 extend along each terminal portion and are formed as protrusions. The second engaging portions 30 engage with the first engaging portion 24 to accommodate each terminal portion.
[0020] Figure 4 yes Figure 1The connector 10 shown is a cross-sectional view taken along line segment AA. The first mating portion 24 and the second mating portion 30 are mated side by side in the transverse direction. The transverse direction is orthogonal to the vertical direction. The terminal portion 50 is sandwiched between the first mating portion 24 and the second mating portion 30.
[0021] The assembly method of connector 10 will be described. With the lower housing 14 mounted, a plurality of terminal portions 50 are mounted on the lower housing 14 in a manner that engages with the second mating portion 30. Next, the upper housing 12 is pressed in from above, and the first mating portion 24 extends between the second mating portion 30 and the terminal portions 50. Thus, the assembly process of connector 10 is completed.
[0022] The first fitting portion 24 has a root portion 32, a conical surface 34, a locking claw 36, a first step 38, and a first partition portion 40. The width of the root portion 32 is wider than the width of the first partition portion 40 and is set to be approximately half the width of the terminal portion 50.
[0023] The first partition wall 40 hangs down from the root 32 and extends vertically. The first partition wall 40 extends between the plurality of terminal portions 50. The first partition wall 40 extends vertically beyond the terminal portions 50 toward the lower housing 14 and extends to a position lower than the terminal portions 50. Thus, the creepage distance between the terminal portions 50 can be extended.
[0024] A conical surface 34 is formed on one side of the front end of the first partition wall portion 40, and it slopes in a manner that the width narrows towards the front end. The front end of the first partition wall portion 40 is the same as the lower end. Through the conical surface 34, the first fitting portion 24 can be easily inserted between the second fitting portion 30 and the terminal portion 50.
[0025] A locking claw 36 is formed on one side of the first partition wall portion 40 and is continuously formed with the conical surface 34. The locking claw 36 engages with the lower edge of the terminal portion 50. This restricts the movement of the first engaging portion 24 separating from the terminal portion 50.
[0026] The first step 38 is formed on the other side of the first partition wall portion 40, and is located on the side opposite to the side where the conical surface 34 and the locking claw 36 are formed. The first step 38 is located in the middle of the first partition wall portion 40. The first step 38 is positioned to overlap with the terminal portion 50 in the lateral direction.
[0027] The second mating portion 30 has a second partition wall portion 42, a protrusion 44, and a second step 46. The second partition wall portion 42 is erected on the inner surface of the lower housing 14. The second partition wall portion 42 extends between a plurality of terminal portions 50. The first partition wall portion 40 and the second partition wall portion 42 are arranged overlappingly between a pair of terminal portions 50. Thus, the creepage distance between the terminal portions 50 can be sufficiently extended without making the upper housing 12 and the lower housing 14 larger.
[0028] The second partition portion 42 extends beyond the terminal portion 50 toward the upper housing 12, and extends to a position higher than the terminal portion 50. Thus, the creepage distance between the terminal portions 50 can be extended.
[0029] The protrusion 44 protrudes laterally from the front end side of the second partition wall portion 42. The protrusion 44 protrudes laterally to approximately half the length of the terminal portion 50. The protrusion 44 clamps the terminal portion 50 between itself and the inner surface of the lower housing 14. The creepage distance between the terminal portions 50 is increased by the protrusion 44. Furthermore, the second engaging portion 30 is able to retain the terminal portion 50.
[0030] The second step 46 is formed on one side of the second partition 42 and is located in the middle of the second partition 42. The second step 46 engages with the first step 38 of the first fitting part 24. The first step 38 and the second step 46 are formed along a direction that intersects the vertical direction with respect to the upper housing 12 and the lower housing 14, and engage with each other. As a result, the first fitting part 24 and the second fitting part 30 are difficult to separate in the vertical direction.
[0031] The present invention has been described above with reference to the embodiments. The present invention is not limited to the above embodiments, and various design changes and modifications can be made based on the knowledge of those skilled in the art.
[0032] In the embodiment, the first fitting portion 24 is shown to have a conical surface 34 and a locking claw 36, but it is not limited to this arrangement. For example, the second fitting portion 30 may have a conical surface 34 and a locking claw 36, the shape of the first fitting portion 24 may be provided in the lower housing 14, and the shape of the second fitting portion 30 may be provided in the upper housing 12.
[0033] Symbol Explanation
[0034] 10-Connector, 12-Upper housing, 14-Lower housing, 16-Port, 20-Locking part, 22-Engaging part, 24-First mating part, 26-Locking part, 28-Engaging part, 30-Second mating part, 32-Root, 34-Conical surface, 36-Locking claw, 38-First step, 40-First partition part, 42-Second partition part, 44-Protrusion, 46-Second step, 50-Terminal part.
Claims
1. A connector, characterized in that, have: A first housing having a first fitting portion; A second housing having a second fitting portion that fits into the first fitting portion; and Multiple terminal portions are sandwiched between the first fitting portion and the second fitting portion. The first fitting portion has a plurality of first partition portions extending between the plurality of terminal portions. The second fitting portion has a plurality of second partition portions extending between the plurality of terminal portions. The first partition portion and the second partition portion are arranged overlappingly between a pair of terminal portions.
2. The connector according to claim 1, characterized in that, The first partition wall extends beyond the terminal portion toward the second housing side. The second partition extends beyond the terminal portion toward the first housing side.
3. The connector according to claim 1 or 2, characterized in that, One of the first partition wall portion and the second partition wall portion has a tapered portion whose width narrows towards the front end.
4. The connector according to claim 3, characterized in that, A locking claw, continuous with the tapered portion, is formed on one of the first partition portion and the second partition portion, and the locking claw engages with the terminal portion.
5. The connector according to claim 1 or 2, characterized in that, The first partition wall portion and the second partition wall portion are formed in a direction that intersects with the opposite direction of the first housing and the second housing, and have steps that engage with each other.