Connector housing and connector

Abstract

This application relates to a connector housing and a connector. The connector housing includes a shell, the tail end of which forms a potting cavity, and multiple terminal holes extending through both ends are formed within the potting cavity. An isolation block protruding towards the tail end of the shell is integrally formed within the potting cavity to separate the multiple terminal holes from each other. The isolation block has adhesive channels communicating with the outer periphery of each terminal hole. Connectors using this connector housing prevent adjacent crimping pins of the terminals inserted into the terminal holes from contacting each other through the isolation block. This results in low manufacturing costs, eliminates the need for additional parts and assembly time, ensures uniform potting, and improves airtightness after potting.

Description

Technical Field

[0001] This application relates to electrical connectors, and more specifically, to a connector housing and a connector employing the connector housing. Background Technology

[0002] Connectors typically consist of a plastic housing and metal terminals inserted within it. The terminals are crimped to wire harnesses at both ends to facilitate electrical conduction or signal transmission. To prevent the connector terminals from shifting within the terminal holes of the plastic housing after crimping, they are usually sealed and secured using glue in the field. However, because the crimped portion of the terminals is exposed outside the terminal holes, when the wire harness is twisted and wrapped in pairs on-site, adjacent terminals are pulled tightly together, leading to accidental contact between the crimped portions. After subsequent glue application, the corresponding terminal structure is covered by glue, making testing impossible and potentially causing a short circuit that affects electrical performance.

[0003] Therefore, existing technologies offer two solutions. One solution is to lengthen the terminal hole, which results in a shorter potting depth, making the wiring harness more prone to gaps due to movement, leading to poor airtightness. Furthermore, lengthening the terminal hole increases the overall wall thickness of the housing, making it more susceptible to pinholes during molding. The other solution is to add a back cover component within the potting cavity of the housing to separate the terminals. This design increases manufacturing and manual operation costs, hinders glue flow, makes it easy to install backwards, and causes it to easily detach after installation. During potting, there may be insufficient glue and poor adhesion between the bottom of the back cover and the terminals, resulting in insufficient airtightness. Utility Model Content

[0004] The technical problem to be solved by this application is to provide a connector housing with low manufacturing cost, convenient potting and good airtightness after potting, and a connector using the connector housing, in view of the above-mentioned defects of the prior art.

[0005] To solve its technical problem, this application proposes a connector housing in the first aspect, including a housing, wherein a potting cavity is formed at the tail end of the housing and a plurality of terminal holes passing through the head and tail ends are formed in the potting cavity, and an isolation block protruding toward the tail end of the housing to separate the plurality of terminal holes from each other is integrally formed in the potting cavity, and an adhesive flow channel is formed on the isolation block to connect each terminal hole with the outer periphery of the isolation block.

[0006] According to one embodiment of the connector housing described in the first aspect of this application, the isolation block has a first through hole opening towards the outer periphery of each of the plurality of outer ring terminal holes along the periphery of each outer ring terminal hole, and a second through hole is formed around each inner ring terminal hole other than the outer ring terminal holes, and the adhesive channel communicates each second through hole with the outer periphery of the isolation block.

[0007] According to one embodiment of the connector housing described in the first aspect of this application, the adhesive channel includes an annular channel formed between the outer periphery of the isolation block and the sidewall of the potting cavity, a first connecting channel formed between every two adjacent first through holes on the isolation block and connecting a second through hole in the outer ring located between the two adjacent first through holes to the annular channel, and a second connecting channel connecting the remaining second through holes to the second through hole in the outer ring.

[0008] According to one embodiment of the connector housing described in the first aspect of this application, the first connection channel and the second connection channel uniformly divide the isolation block around the first through hole and the second through hole.

[0009] In one embodiment of the connector housing according to the first aspect of this application, the height of the isolation block protruding toward the tail end of the housing is greater than the height of the crimping pin of the terminal in the terminal hole extending out of the terminal hole.

[0010] In order to solve its technical problem, this application proposes a connector in a second aspect, including the aforementioned connector housing, and further including a plurality of terminals disposed in a plurality of terminal holes in the connector housing, wherein the crimping pins at the tail ends of the plurality of terminals are crimped with the wire harness and then separated from each other by the isolation block and sealed and fixed by filling the potting cavity with glue.

[0011] The connector housing and connector of this application have the following advantages: The connector housing according to the embodiment of this application separates multiple terminal holes from each other by an integrally formed protruding isolation block in the potting cavity, preventing adjacent crimping pins of each terminal inserted in the terminal hole from touching each other, resulting in low manufacturing cost and no need to add new parts and assembly time; When potting the connector, each terminal hole is connected through the glue channel on the isolation block, and the glue can flow into each terminal hole along the glue channel, avoiding uneven potting and better air tightness after potting. Attached Figure Description

[0012] The present application will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the connector structure according to one embodiment of this application; Figure 2 yes Figure 1 A schematic diagram of the connector housing structure; Figure 3 yes Figure 1 The diagram shows a cross-sectional view of the connector.

[0013] Reference numerals: 100-Connector; 10-Connector housing; 11-Housing; 12-Potting cavity; 121-Side wall; 13-Terminal hole; 131-Outer ring terminal hole; 132-Inner ring terminal hole; 14-Isolation block; 141-First through hole; 142-Second through hole; 15-Adhesive channel; 151-Annular channel; 152-First connection channel; 153-Second connection channel; 20-Terminal; 21-Crimp pin; 30-Wire harness. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. Furthermore, the embodiments and features described herein can be combined with each other unless otherwise specified.

[0015] Figure 1 A schematic diagram of the connector 100 according to one embodiment of this application is shown. See also Figure 1 As shown, the connector 100 mainly consists of a connector housing 10 and terminals 20 inserted therein. The terminals 20 are used to crimp with the wire harnesses 30 at both ends to achieve electrical conductivity or signal transmission. See details. Figure 1 As shown, the connector housing 10 includes a housing 11, with a potting cavity 12 formed at the tail end of the housing 11. Multiple terminal holes 13, penetrating both ends of the housing 11, are provided within the potting cavity. Multiple terminals 20 are correspondingly inserted into these terminal holes 13. It should be noted that the number of terminals 20 shown in the figure is merely an example and not a specific limitation on the connector 100 claimed in this application. The number and distribution of the terminal holes 13 and the terminals 20 inserted into them can be selected according to the usage requirements of the connector 100.

[0016] See further Figure 1 As shown, an isolation block 14 is integrally formed within the potting cavity 12 of the connector housing 10. The isolation block 14 protrudes towards the tail end of the housing 11 and is used to separate the multiple terminal holes 13 from each other. The isolation block 14 also has adhesive channels 15 that communicate with the outer periphery of each terminal hole 13, so that adhesive can flow into each terminal hole 13 during potting. See details... Figure 1 Combination Figure 2 As shown, a first through hole 142 is provided on the isolation block 14 corresponding to each outer ring terminal hole 131 among the plurality of terminal holes 13, and a second through hole 142 is provided corresponding to each inner ring terminal hole 132 other than the outer ring terminal holes 131, for the terminals 20 and wire harness 30 to pass through. Specifically, the first through hole 141 is provided along the periphery of the outer ring terminal holes 131 and opens toward the outer periphery of the isolation block 14, preferably as follows. Figure 2The outer ring terminal hole 131 is partially surrounded by a second through hole 142, which surrounds each inner ring terminal hole 132. The adhesive flow channel 15 includes an annular flow channel 151, a first connecting flow channel 152, and a second connecting flow channel 153. The annular flow channel 151 is formed between the outer periphery of the spacer block 14 and the sidewall 121 of the potting cavity 12. The open first through hole 141 communicates with the annular flow channel 151, allowing adhesive to flow into the outer ring terminal hole 131. The first connecting flow channel 152 is formed between every two adjacent first through holes 141 on the spacer block 14, and communicates with the annular flow channel 151 to the second through hole 142 located between these two adjacent first through holes 141, allowing adhesive to flow into the second through hole 142. The second connecting channel 153 is used to connect the remaining second through holes 142 (excluding the second through hole 142 of the outer ring) to the second through hole 142 of the outer ring, thereby connecting the first connecting channel 152 and the annular channel 151 through the second through hole 142 of the outer ring, allowing adhesive to flow into the inner ring terminal hole 132. The second connecting channel 153 can connect the remaining inner second through holes 142 to the second through hole 142 of the outer ring in a sequential, individual, or combined manner, and its specific arrangement can be flexibly selected. In a preferred embodiment, the first connecting channel 152 and the second connecting channel 153 can be designed to evenly divide the spacer block 14 around the first through hole 141 and the second through hole 142, which is beneficial to the molding of the spacer block 14.

[0017] According to the above embodiments of this application, the connector 100 separates multiple terminal holes 13 from each other through an integrally formed protruding isolation block 14 within the potting cavity 12 of the connector housing 10, and see also... Figure 3 As shown, the height of the isolation block 14 protruding towards the tail end of the housing 11 is greater than the height of the crimping foot 21 of the terminal 20 extending out of the terminal hole 13. When the wire harness 30 is crimped with the crimping foot 21 at the tail end of the terminal 20, since the crimping feet 21 of each terminal 20 are separated from each other by the isolation block 14, no matter how the wire harness 30 shakes, the crimping feet 21 of adjacent terminals 20 will not touch. When filling the potting cavity 12 with glue to seal and fix the wire harness 30 and the terminal 20, since each terminal hole 13 is connected through the glue flow channel 15 on the isolation block 14, the glue can flow into each terminal hole 13 along the glue flow channel 15, avoiding uneven glue filling and improving the airtightness after glue filling.

[0018] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A connector housing comprising a housing, a rear end of the housing forming a potting cavity and a plurality of terminal holes passing through the front and rear ends of the housing in the potting cavity, characterized in that, The glue injection cavity is integrally formed with a separation block protruding towards the tail end of the shell to separate the terminal holes from each other, and the separation block is provided with glue flow channels communicating each terminal hole with the outer periphery of the separation block.

2. The connector housing of claim 1, wherein, The separation block is provided with a first through hole opening towards the outer periphery of the separation block along the periphery of each outer-circle terminal hole, and a second through hole surrounding each inner-circle terminal hole except the outer-circle terminal hole, and the glue flow channels communicate each second through hole with the outer periphery of the separation block.

3. The connector housing of claim 2, wherein, The glue flow channels include an annular flow channel formed between the outer periphery of the separation block and the side wall of the glue injection cavity, a first connecting flow channel provided between each two adjacent first through holes on the separation block and communicating the second through hole between the two adjacent first through holes with the annular flow channel, and a second connecting flow channel communicating the remaining second through holes with the second through hole.

4. The connector housing of claim 3, wherein, The first connecting flow channel and the second connecting flow channel uniformly divide the separation block around the first through hole and the second through hole.

5. The connector housing of claim 1, wherein, The protruding height of the separation block towards the tail end of the shell is greater than the height of the terminal crimping feet of the terminals in the terminal holes.

6. A connector characterized by comprising: The connector shell includes the terminals inserted into the terminal holes of the connector shell, and the crimping feet of the terminals at the tail end are crimped with the wire harness and sealed and fixed by glue injection into the glue injection cavity.

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