Through-wall electric connector
By setting limiting grooves and limiting protrusions on the housing of the through-wall electrical connector, the inner liner is fixed in three-coordinate space, which solves the problem of poor contact caused by the slippage of the inner liner and improves the connection stability.
Patent Information
- Application Number
- CN202422678434.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The inner liner of existing through-wall electrical connectors is prone to slipping, leading to poor contact and poor connection stability.
The inner liner is limited in the length, width and height directions of the shell. The inner liner is fully fixed in the three-coordinate space by the limiting groove and the limiting protrusion to prevent slippage.
It effectively prevents the inner liner from slipping, improves the connection stability of the connector, and avoids poor contact.
Smart Images
Figure CN223693439U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of connectors, and more particularly to a wall-through type electrical connector. BACKGROUND
[0002] A wall-through type terminal (or wall-through type electrical connector) is an electrical component designed to pass through a cavity wall or partition to connect a circuit. It usually has a square-shaped shell, which contains conductive metal sheets or terminals inside, fixed in the shell by insulating material, and is provided with wire access holes and fastening screws. Its structure is compact, easy to install and use. The inner liner in the wall-through type electrical connector in the prior art is easy to fall off, which causes the connector to be prone to poor contact and poor connection stability, resulting in more current consumption when the connector is used. CONTENT OF THE UTILITY MODEL
[0003] Therefore, the present application provides a wall-through type electrical connector to solve the technical problems of poor contact and poor connection stability of the wall-through type electrical connector in the prior art.
[0004] The present application provides a wall-through type electrical connector, wherein the wall-through type electrical connector comprises a shell, an inner liner, a metal row, and first and second terminal ends connected to the metal row, the inner liner is installed in a mounting cavity in the shell, the metal row is detachably connected to the inner liner, the cavity wall of the mounting cavity limits the inner liner in the length direction and the width direction of the shell, one end of the inner liner has a protruding head, the side surface of the inner liner has a first limiting protrusion, the cavity wall is formed with a limiting groove and a second limiting protrusion, the limiting groove resists and limits the protruding head in the height direction of the shell along a first direction, and the second limiting protrusion resists and limits the first limiting protrusion in the height direction of the shell along a second direction, the first direction being opposite to the second direction.
[0005] Further, the protruding head comprises a boss protruding towards both sides of the inner liner in the width direction of the inner liner.
[0006] Further, the metal row comprises a first edge and a second edge connected to each other, the first edge is perpendicular to the second edge to form an L-shaped metal row, the first edge is detachably connected to the inner liner, and the second edge extends out of the shell.
[0007] Further, a third limiting protrusion is arranged on the inner side surface of the second edge, the third limiting protrusion resists and limits the first end surface of the inner liner in the height direction of the shell along a first direction, and the inner side surface of the first edge resists and limits the second end surface of the inner liner in the height direction of the shell along a second direction, the first end surface and the second end surface being opposite to each other.
[0008] Further, a mounting hole is formed through the inner liner, a threaded sleeve with internal threads is mounted in the mounting hole, the first and second terminal posts are both terminal posts with external threads, the first terminal post is threadedly connected to one end of the threaded sleeve through the first side, and the second terminal post is threadedly connected to the other end of the threaded sleeve through the second side and extends out of the shell.
[0009] Further, the metal strip includes a middle side and first and second side sides connected to both ends of the middle side, the first and second side sides and the middle side form a U-shaped metal strip, the first and second side sides are detachably connected to the inner liner, and the second side side protrudes out of the shell.
[0010] Further, the inner side surface of the first side side abuts against and limits the first end surface of the inner liner in a first direction along the height direction of the shell, the inner side surface of the second side side abuts against and limits the second end surface of the inner liner in a second direction along the height direction of the shell, and the first and second end surfaces face away from each other.
[0011] Further, a mounting hole is formed through the inner liner, a threaded sleeve with internal threads is mounted in the mounting hole, the first and second terminal posts are both terminal posts with external threads, the first terminal post is threadedly connected to one end of the threaded sleeve through the first side, and the second terminal post is threadedly connected to the other end of the threaded sleeve through the second side and extends out of the shell.
[0012] Further, the shell includes a first half shell and a second half shell detachably connected to each other.
[0013] Further, the outer side of the shell is provided with anti-skid lines, a terminal port is formed on the shell, the wall-type electrical connector includes a cover sheet connected to the shell and covering the terminal port, and the cover sheet can be detached from the shell when subjected to an external force.
[0014] Compared with the prior art, in the wall-type electrical connector provided by the application, the cavity wall of the mounting cavity limits the inner liner in the length direction and the width direction of the shell, and in the height direction of the shell, the inner liner is also limited by the limiting groove and the second limiting protrusion, which is equivalent to comprehensively limiting the inner liner in three perpendicular coordinate spaces, effectively preventing the problem of poor contact of the wall-type electrical connector caused by the sliding of the inner liner, and improving the connection stability of the wall-type electrical connector. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.
[0016] Figure 1 A cross-sectional view of a wall-through electrical connector according to an embodiment of the present application;
[0017] Figure 2 Another cross-sectional view of a wall-through electrical connector according to an embodiment of the present application;
[0018] Figure 3 A perspective view of a wall-through electrical connector according to an embodiment of the present application;
[0019] Figure 4 A cross-sectional view of a wall-through electrical connector according to another embodiment of the present application;
[0020] Figure 5 Another cross-sectional view of a wall-through electrical connector according to another embodiment of the present application;
[0021] Figure 6 A perspective view of a wall-through electrical connector according to another embodiment of the present application;
[0022] Figure 7 A perspective exploded view of a wall-through electrical connector according to an embodiment of the present application. DETAILED DESCRIPTION
[0023] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings show one or more embodiments of the present application in order to make the understanding of the technical solutions disclosed by the present application more accurate and thorough. However, it should be understood that the present application can be realized in various forms and is not limited to the embodiments described below.
[0024] In the drawings of the present application, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration and cannot be understood as a limitation on the present application, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0025] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, if "and / or" or "and / or" appears throughout the text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme.
[0026] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor in the protection scope claimed by the present application.
[0027] Referring to Figures 1 to 7 The utility model provides a kind of wall-penetrating electrical connector, but also can be used as other types of electrical connector, can be used as (but not limited to) a large current electrical connector, wherein, wall-penetrating electrical connector includes shell 100, inner liner 200, metal row and be connected to the first terminal 1 and second terminal 2 of metal row, metal row specifically can be divided into the U-shaped metal row 400 and L-shaped metal row 300 mentioned below, inner liner 200 is installed in the mounting cavity 101 in shell 100, metal row is detachably connected with inner liner 200, the cavity wall of mounting cavity 101 is positioned in the length direction and width direction of shell 100, one end of inner liner 200 has boss 201, the side of inner liner 200 has first limiting protrusion 202, limiting groove 102 and second limiting protrusion 103 are formed on the cavity wall, limiting groove 102 is resisted limiting protrusion 201 in the height direction of shell 100 along first direction F1, second limiting protrusion 103 is resisted limiting first limiting protrusion 202 in the height direction of shell 100 along second direction F2, first direction F1 and second direction F2 are opposite, so that inner liner 200 is completely positioned in the height direction of shell 100.
[0028] Because wall-penetrating electrical connector provided in the present application, the cavity wall of mounting cavity 101 is positioned in the length direction and width direction of shell 100, and in the height direction of shell 100, inner liner 200 is also positioned by limiting groove 102 and second limiting protrusion 103, equivalent to comprehensively positioning inner liner 200 in three coordinate spaces of two two perpendiculars, can effectively prevent the problem of wall-penetrating electrical connector contact failure caused by inner liner 200 sliding, improve the connection stability of the present wall-penetrating electrical connector.
[0029] According to one embodiment of the present application, the convex head 201 comprises a convex platform 203 protruding towards both sides of the inner liner 200 along the width direction of the inner liner 200. The first limiting protrusion 202 is located on a side of the inner liner 200 different from the convex platform 203, and can also be located on the same side.
[0030] Referring to Figures 1 to 3 and Figure 7 According to one embodiment of the present application, the metal strip comprises a first side 301 and a second side 302 connected to each other, the first side 301 is perpendicular to the second side 302 to form an L-shaped metal strip 300, the first side 301 is detachably connected to the inner liner 200, and the second side 302 protrudes out of the shell 100.
[0031] In this embodiment, specifically, a third limiting protrusion 303 is arranged on the inner side of the second side 302, the third limiting protrusion 303 abuts against a first end surface of the inner liner 200 along a first direction F1 in the height direction of the shell 100, the inner side of the first side 301 abuts against a second end surface of the inner liner 200 along a second direction F2 in the height direction of the shell 100, and the first end surface and the second end surface are opposite to each other. A mounting hole penetrating through both ends of the inner liner 200 is formed, a threaded sleeve 3, for example, a copper threaded sleeve, is mounted in the mounting hole, the first terminal 1 and the second terminal 2 are both terminal posts with external threads, the end surface of the terminal post can form a hexagonal wrench hole, and the terminal post can be equipped with a gasket when connected in use, the first terminal 1 is threadedly connected to one end of the threaded sleeve 3 through the first side 301, and the second terminal 2 is arranged on the part of the second side 302 protruding out of the shell 100.
[0032] Referring to Figures 4 to 6 According to another embodiment of the present application, the metal strip comprises a middle side 402 and a first side 401 and a second side 403 connected to both ends of the middle side 402, the first side 401, the middle side 402 and the second side 403 form a U-shaped metal strip 400, the first side 401 and the second side 403 are both detachably connected to the inner liner 200, and the second side 403 protrudes out of the shell 100.
[0033] In the embodiment, specifically, the inner side of the first side edge 401 resists the first end surface of the limiting lining 200 in the height direction of the shell 100 along the first direction F1, and the inner side of the second side edge 403 resists the second end surface of the limiting lining 200 in the height direction of the shell 100 along the second direction F2, the first end surface and the second end surface are opposite to each other. The mounting hole penetrating through both ends is formed in the lining 200, the mounting hole is provided with the threaded sleeve 3 with internal threads, for example, a copper threaded sleeve, the first terminal 1 and the second terminal 2 are both terminal posts with external threads, the end surface of the terminal post can form a hexagonal wrench hole, and the terminal post can be provided with a gasket when connected in use, the first terminal 1 is threadedly connected with one end of the threaded sleeve 3 through the first side edge 401, and the second terminal 2 is threadedly connected with the other end of the threaded sleeve 3 through the second side edge 403 and extends out of the shell 100.
[0034] According to one embodiment of the present application, the shell 100 comprises a first half shell 104 and a second half shell 105 which are detachably connected to each other. Specifically, the outer side of the shell 100 is provided with anti-skid lines 106 (alternating concave-convex structures), the shell 100 is formed with a wiring port 107, the through-wall electrical connector comprises a cover sheet 4 connected to the shell 100 and covering the wiring port 107, the cover sheet 4 can be detached from the shell 100 when subjected to external force (specifically, can be connected to the shell 100 through a breakable rib 41), after the cover sheet 4 is detached, it is convenient for the electric wire to enter the shell 100 and be connected with the first terminal 1, and the second terminal 2 is located outside the shell 100 (or at least has a part extending out of the shell 100), which is convenient for being connected with another electric wire outside, the first half shell 104 and the second half shell 105 can be clamped or buckled to each other, for example, the two sides of the second half shell 105 are formed with clamping holes 108, the first half shell 104 is formed with clamping protrusions 109 which are clamped with the clamping holes 108, the clamping protrusions 109 can be formed in hidden holes 110 on the two sides of the first half shell 104, in addition, the limiting groove 102 and the second limiting protrusion 103 can be formed on the inner side wall of the first half shell 104.
[0035] In addition, in the through-wall electrical connector provided by the present application, the first half shell 104 and the second half shell 105 can both be (but are not limited to be) plastic parts, and the metal bar can be (but is not limited to be) a copper bar.
[0036] It should be noted that the above embodiments only express the preferred embodiments of the present application, and the description is more specific and detailed, but it should not be construed as a limitation of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, such as combining different features in each embodiment, which should all fall within the protection scope of the present application.
Claims
1. A through-wall electrical connector, characterized by, The wall-penetrating electrical connector comprises a housing, an inner liner, a metal strip, and first and second wiring terminals connected to the metal strip, the inner liner is installed in an installation cavity in the housing, the metal strip is detachably connected to the inner liner, a cavity wall of the installation cavity limits the inner liner in both the length direction and the width direction of the housing, one end of the inner liner has a protruding head, a side surface of the inner liner has a first limiting protrusion, a limiting groove and a second limiting protrusion are formed on the cavity wall, the limiting groove blocks the protruding head in a first direction in the height direction of the housing, and the second limiting protrusion blocks the first limiting protrusion in a second direction in the height direction of the housing, the first direction is opposite to the second direction.
2. The through-wall electrical connector of claim 1, wherein, The protruding head comprises a boss protruding towards both sides of the inner liner in the width direction of the inner liner.
3. The through-wall electrical connector of claim 1, wherein, The metal strip comprises a first side and a second side connected to each other, the first side is perpendicular to the second side to form an L-shaped metal strip, the first side is detachably connected to the inner liner, and the second side extends out of the housing.
4. The through-wall electrical connector of claim 3, wherein, A third limiting protrusion is arranged on the inner side of the second side, the third limiting protrusion blocks a first end surface of the inner liner in a first direction in the height direction of the housing, and an inner side of the first side blocks a second end surface of the inner liner in a second direction in the height direction of the housing, the first end surface and the second end surface face away from each other.
5. The through-wall electrical connector of claim 4, wherein, An installation hole penetrating through both ends of the inner liner is formed, a threaded sleeve with internal threads is installed in the installation hole, the first and second wiring terminals are both wiring posts with external threads, the first wiring terminal is threadedly connected to one end of the threaded sleeve through the first side, and the second wiring terminal is threadedly connected to the other end of the threaded sleeve through the second side and extends out of the housing.
6. The through-wall electrical connector of claim 1, wherein, The metal strip comprises a middle side and first and second side edges connected to both ends of the middle side, the first, middle, and second side edges form a U-shaped metal strip, the first and second side edges are both detachably connected to the inner liner, and the second side edge protrudes out of the housing.
7. The through-wall electrical connector of claim 6, wherein, An inner side of the first side edge blocks a first end surface of the inner liner in a first direction in the height direction of the housing, and an inner side of the second side edge blocks a second end surface of the inner liner in a second direction in the height direction of the housing, the first end surface and the second end surface face away from each other.
8. The through-wall electrical connector of claim 7, wherein, An installation hole penetrating through both ends of the inner liner is formed, a threaded sleeve with internal threads is installed in the installation hole, the first and second wiring terminals are both wiring posts with external threads, the first wiring terminal is threadedly connected to one end of the threaded sleeve through the first side, and the second wiring terminal is threadedly connected to the other end of the threaded sleeve through the second side and extends out of the housing.
9. The electrical wall connector according to any one of claims 1 to 8, wherein The housing comprises first and second half housings detachably connected to each other.
10. The electrical wall connector according to any one of claims 1 to 8, wherein The outer side of the shell is provided with anti-skid lines, a wiring port is formed on the shell, the wall-penetrating electric connector comprises a cover sheet connected to the shell and covering the wiring port, and the cover sheet can be separated from the shell when subjected to external force.