阅读说明：本技术 导轨接地端子结构 (Guide rail grounding terminal structure ) 是由 邓永其 马新博 胡斐 崔士通 于 2021-08-26 设计创作，主要内容包括：本发明公开了一种导轨接地端子结构,包括绝缘主体、导轨和接地端子,绝缘主体一端能与导轨一端扣合连接,接地端子能固定于绝缘主体另一端,接地端子上设有用于与电路板电性连接的焊点,接地端子上还形成有横向固定触点、竖向固定触点和弹性触点,横向固定触点、竖向固定触点和弹性触点恰围成一个与导轨延伸方向存在夹角的倾斜通道,导轨另一端能呈倾斜状态插设于所述倾斜通道内,导轨另一端的端部止挡于竖向固定触点,导轨另一端上侧面紧抵于横向固定触点上,导轨另一端下侧面紧抵于弹性触点上,弹性触点与横向固定触点沿导轨厚度方向交错排列,弹性触点弹性变形能改变其与横向固定触点之间的距离,本发明能保持对导轨的稳定夹持力,使用便利。(The invention discloses a guide rail grounding terminal structure, which comprises an insulating main body, a guide rail and a grounding terminal, wherein one end of the insulating main body can be buckled and connected with one end of the guide rail, the grounding terminal can be fixed at the other end of the insulating main body, a welding spot for electrically connecting with a circuit board is arranged on the grounding terminal, a transverse fixed contact, a vertical fixed contact and an elastic contact are also formed on the grounding terminal, the transverse fixed contact, the vertical fixed contact and the elastic contact just enclose an inclined channel with an included angle with the extending direction of the guide rail, the other end of the guide rail can be inserted into the inclined channel in an inclined state, the end part of the other end of the guide rail is stopped at the vertical fixed contact, the upper side surface of the other end of the guide rail is tightly abutted against the transverse fixed contact, the lower side surface of the other end of the guide rail is tightly abutted against the elastic contact, the elastic contact and the transverse fixed contact are staggered in the thickness direction of the guide rail, and the elastic deformation of the elastic contact can change the distance between the elastic contact and the transverse fixed contact, the invention can keep stable clamping force on the guide rail and is convenient to use.)

1. The utility model provides a guide rail ground terminal structure, includes insulating main part, guide rail and ground terminal, insulating main part one end can be connected with guide rail one end lock, and ground terminal can fixed mounting in the insulating main part other end, the last solder joint that is used for with circuit board electric connection in the insulating main part, characterized in that is equipped with of ground terminal: still be fixed with horizontal fixed contact, vertical fixed contact and elastic contact on the ground terminal, horizontal fixed contact, vertical fixed contact and elastic contact just enclose into one and have the slope passageway of setting for the contained angle with the guide rail extending direction, and the guide rail other end can be the tilt state and insert and locate in the slope passageway, the tip stop of the guide rail other end is in vertical fixed contact, and the side tightly supports on horizontal fixed contact on the guide rail other end, and guide rail other end downside tightly supports on elastic contact, and elastic contact and horizontal fixed contact follow guide rail thickness direction staggered arrangement, elastic contact elastic deformation can change its and the distance between the horizontal fixed contact.

2. The rail grounding terminal structure of claim 1, wherein: the surface of the transverse fixed contact of the grounding terminal is a transverse plane parallel to the extending direction of the guide rail, and the surface of the vertical fixed contact is a vertical plane vertical to the extending direction of the guide rail.

3. The rail grounding terminal structure according to claim 1 or 2, characterized in that: the ground terminal is connected between the surface of the transverse fixed contact and the root of the vertical fixed contact through an inclined plane, and the inclined plane forms an upper side wall of an inclined channel for the other end of the guide rail to be inserted.

4. The rail grounding terminal structure of claim 3, wherein: the elastic contact is of a hook-shaped cantilever structure, the surface of the end part of the hook-shaped cantilever structure is parallel to the inclined plane between the transverse fixed contact and the vertical fixed contact in a free state, and the surface of the end part of the hook-shaped cantilever structure is in smooth transition connection with the side wall of the hook-shaped cantilever structure through a round angle.

5. The rail grounding terminal structure of claim 4, wherein: the structure that ground terminal can fixed mounting in the insulating main part other end does: fixed projection that is equipped with one and extends along the horizontal direction and the horizontal slot that extends along the horizontal direction in the insulating main part, fixed projection can be inside inserting the hook-like cantilever structure of locating elastic contact of circumferencial direction locking, be formed with the depressed part on the horizontal slot inside wall of insulating main part, the fixed horizontal inserted sheet that is equipped with along the horizontal direction extension on the ground terminal, horizontal inserted sheet tip is formed with the back-off structure, horizontal inserted sheet can insert and locate in the horizontal slot of insulating main part, and the back-off structure of its tip can be connected with the depressed part lock on the horizontal slot lateral wall.

6. The rail grounding terminal structure of claim 5, wherein: an opening-shaped accommodating groove matched with the ground terminal in shape is formed in the insulating body, the ground terminal is accommodated in the accommodating groove, and the horizontal slot and the fixed convex column are respectively located on the side wall and the bottom surface of the accommodating groove.

7. The rail grounding terminal structure of claim 6, wherein: the ground terminal is of an L-shaped single-layer structure, the transverse fixed contact, the vertical fixed contact and the elastic contact are located on one side wall of the L shape, and the welding spot and the horizontal insertion sheet are located on the other side wall of the L shape.

8. The rail grounding terminal structure of claim 7, wherein: the side wall of the containing groove is also provided with a reverse-buckled body buckling structure, and the hook-shaped cantilever structure of the elastic contact is stopped at one side of the reverse-buckled body buckling structure, which faces to the bottom surface of the containing groove.

9. The rail grounding terminal structure of claim 6, wherein: the grounding terminal is of a U-shaped double-layer structure, the paired transverse fixed contacts, the paired vertical fixed contacts and the paired elastic contacts are positioned on two opposite side walls of the U-shaped structure, and the welding spots and the horizontal inserting pieces are positioned on the bottom surface of the U-shaped structure.

10. The rail grounding terminal structure of claim 9, wherein: the bottom surface of the U-shaped ground terminal is also provided with a notch structure, barb-shaped bulges are respectively formed on two side walls of the notch, the insulating body is provided with a lug structure, the lug structure can be inserted into the notch structure formed on the bottom surface of the U-shaped ground terminal, and the barb-shaped bulges on the two side walls of the notch on the bottom surface of the U-shaped ground terminal can be connected with the side walls of the lug structure on the insulating body in a clamping manner.

Technical Field

The invention relates to the technical field of connectors, in particular to a guide rail grounding terminal structure.

Background

The grounding terminal in the prior art is single in structure, only contacts with the guide rail through one contact, the contact stability of the guide rail with the grounding terminal is poor after the guide rail is assembled, the guide rail is easy to fall off in the using process, and the grounding terminal is easy to deform, break and other adverse conditions in the assembling and disassembling processes, so that the using stability of the connector is poor.

Disclosure of Invention

In order to make up for the above deficiencies, the invention provides a guide rail grounding terminal structure, which can improve the contact stability of a grounding terminal and a guide rail, and further improve the safety of a product.

The technical scheme adopted by the invention for solving the technical problem is as follows: a guide rail grounding terminal structure comprises an insulation main body, a guide rail and a grounding terminal, wherein one end of the insulation main body can be buckled and connected with one end of the guide rail, the grounding terminal can be fixedly arranged at the other end of the insulation main body, a welding spot for electrically connecting with a circuit board in the insulation main body is arranged on the grounding terminal, a transverse fixed contact, a vertical fixed contact and an elastic contact are further fixedly formed on the grounding terminal, the transverse fixed contact, the vertical fixed contact and the elastic contact just form an inclined channel with a set included angle with the extension direction of the guide rail, the other end of the guide rail can be inserted into the inclined channel in an inclined state, the end part of the other end of the guide rail is stopped at the vertical fixed contact, the upper side surface of the other end of the guide rail is tightly abutted against the transverse fixed contact, the lower side surface of the other end of the guide rail is tightly abutted against the elastic contact, and the elastic contact and the transverse fixed contact are staggered in the thickness direction of the guide rail, the elastic contact elastically deforms to change the distance between the elastic contact and the transverse fixed contact.

When the guide rail is assembled, one end of the guide rail is suspended, the other end of the guide rail is inserted into an inclined channel enclosed by a transverse fixed contact, a vertical fixed contact and an elastic contact of the grounding terminal in an inclined state, the guide rail cannot be inserted inwards continuously after the end part of the other end of the guide rail props against the vertical fixed contact, the upper side wall and the lower side wall of the other end of the guide rail respectively prop against the surfaces of the transverse fixed contact and the elastic contact, one end of the guide rail is buckled and connected with one end of the insulating body by pulling one end of the guide rail, the guide rail rotates by taking the transverse fixed contact as a fulcrum, the elastic contact is elastically deformed by the lower side wall of the guide rail to be far away from the transverse fixed contact, and finally the guide rail forms a horizontal extending state, and because of the self elastic force of the elastic contact, an elastic torsion is provided for the other end of the guide rail, so that one end of the guide rail and the insulating body are kept in a tight buckling state, meanwhile, the other end of the guide rail and the grounding terminal are kept in a stable clamping state, when the guide rail is disassembled, only one end of the guide rail and the insulating body are required to be tripped firstly, under the action of elastic reset force of the elastic contact of the grounding terminal, the guide rail automatically rotates around the transverse fixed contact, one end of the guide rail is rotated towards the lower part far away from the insulation body, the guide rail forms an inclined state and is pulled out, so that the guide rail can be pulled out from between the transverse fixed contact and the elastic contact of the grounding terminal, the structure ensures that the product is safer and more reliable in the using process and the guide rail is more convenient to disassemble, when the structure meets the requirements of the product for through-flow use and guide rail disassembly, the adverse conditions such as thermal deformation of the terminal, terminal yield and the like do not occur, and the product is more stable and safer.

As a further improvement of the present invention, the horizontal fixed contact surface of the ground terminal is a horizontal plane parallel to the extending direction of the guide rail, and the vertical fixed contact surface is a vertical plane perpendicular to the extending direction of the guide rail. The transverse fixed contact is a transverse plane, so that the guide rail is kept in a close contact state with the transverse fixed contact when the guide rail is finally kept in a horizontal state, the contact area is large, and the assembly stability of a product and the capability of resisting impact current are enhanced.

As a further improvement of the present invention, the ground terminal is joined between the surface of the horizontal fixed contact and the root of the vertical fixed contact by an inclined surface, and the inclined surface forms an upper side wall of an inclined channel for the other end of the guide rail to be inserted. An inclined channel for inserting the other end of the guide rail is formed by the inclined surface, and the other end of the guide rail is inserted to play a role in guiding.

As a further improvement of the invention, the elastic contact is a hook-shaped cantilever structure, the end surface of the hook-shaped cantilever structure is parallel to the inclined plane between the transverse fixed contact and the vertical fixed contact in a free state, and the end surface of the hook-shaped cantilever structure is smoothly and transitionally connected with the side wall of the hook-shaped cantilever structure through a round angle. Elastic deformation of the elastic contact is achieved through the hook-shaped cantilever structure, during a free state, an inclined channel is formed between the elastic contact and the inclined plane, a guide effect is achieved for inserting the other end of the guide rail, when the guide rail is pulled, and the guide rail rotates around the transverse fixed contact, the hook-shaped cantilever structure is pried by the lower side face of the guide rail to deform, and the round angle of the hook-shaped cantilever structure tightly supports the lower side face of the rail.

As a further improvement of the present invention, the structure that the ground terminal can be fixedly mounted on the other end of the insulating main body is: fixed projection that is equipped with one and extends along the horizontal direction and the horizontal slot that extends along the horizontal direction in the insulating main part, fixed projection can be inside inserting the hook-like cantilever structure of locating elastic contact of circumferencial direction locking, be formed with the depressed part on the horizontal slot inside wall of insulating main part, the fixed horizontal inserted sheet that is equipped with along the horizontal direction extension on the ground terminal, horizontal inserted sheet tip is formed with the back-off structure, horizontal inserted sheet can insert and locate in the horizontal slot of insulating main part, and the back-off structure of its tip can be connected with the depressed part lock on the horizontal slot lateral wall.

The ground terminal passes through the circle in the middle of the hook-like cantilever structure and fixed projection transition fit on the insulator, accomplish ground terminal's main location, the back-off structure of the horizontal inserted sheet tip on the ground terminal has inserted in insulator's horizontal slot, form interference fit, form lock fixed position through the depressed part lock joint on back-off structure and the horizontal slot, wherein the best body rib interval that forms for the cantilever of horizontal slot both sides wall sets up, and then when horizontal inserted sheet inserts, the body rib can elastic deformation dodge, it is internal to ensure that ground terminal packs into insulator smoothly, ground terminal and insulator's reciprocal anchorage is accomplished to above-mentioned structure.

As a further improvement of the present invention, an open-shaped receiving groove matched with the shape of the ground terminal is formed on the insulating body, the ground terminal is received in the receiving groove, and the horizontal slot and the fixing convex column are respectively located on the side wall and the bottom surface of the receiving groove. The holding groove is used for holding the grounding terminal, the grounding terminal is prevented from being exposed outside, the grounding terminal is prevented from falling off under the action of external force, the connection stability of the grounding terminal and the insulating body is improved, and meanwhile, the grounding terminal is effectively protected and prevented from being damaged.

As a further improvement of the present invention, the ground terminal is an L-shaped single-layer structure, the horizontal fixed contact, the vertical fixed contact and the elastic contact are located on one side wall of the L-shape, and the solder joint and the horizontal insertion sheet are located on the other side wall of the L-shape. The single-layer grounding terminal is in contact with the guide rail, and is simple in structure and low in cost. The cooperation through the ground terminal of metal and insulator reaches lasting stable clamping-force, makes the product safe and reliable more in the use, and it is also more convenient equally to dismantle the guide rail.

As a further improvement of the invention, a reverse-buckled body buckling structure is further arranged on the side wall of the accommodating groove, and the hook-shaped cantilever structure of the elastic contact is stopped at one side of the reverse-buckled body buckling structure facing the bottom surface of the accommodating groove. The hook-shaped cantilever structure of the single-layer grounding terminal is buckled and fixed by the inverted buckle-shaped body buckling structure of the insulating body, so that the grounding terminal is prevented from being separated from the insulating body when in use. Two anticreeps, fixed knot construct and accomplished ground terminal and insulator and fixed completely, make ground terminal more stable firm in transportation, use, the security is high.

As a further improvement of the present invention, the ground terminal is a U-shaped double-layer structure, the pair of the horizontal fixed contact, the vertical fixed contact and the elastic contact are located on two opposite side walls of the U-shape, and the welding point and the horizontal insertion piece are located on the bottom surface of the U-shape. The grounding terminal with the double-layer structure is contacted with the guide rail, so that the number of contact points with the guide rail is increased, and the shock current resistance of the product is enhanced; adopt the integral type structure, the product is whole more firm, has avoided comparatively complicated equipment mode simultaneously, uses also very conveniently when satisfying high impulse current.

As a further improvement of the invention, a notch structure is further formed on the bottom surface of the U-shape of the ground terminal, barb-shaped protrusions are respectively formed on two side walls of the notch, a bump structure is arranged on the insulating body, the bump structure can be inserted into the notch structure formed on the bottom surface of the U-shape of the ground terminal, and the barb-shaped protrusions on the two side walls of the notch on the bottom surface of the U-shape of the ground terminal can be connected with the side walls of the bump structure on the insulating body in a clamping manner. When the grounding terminal with the double-layer structure is assembled with the insulating body, the double-layer grounding terminal is in transition fit with the fixed convex column of the insulating body through a circle in the middle of the hook-shaped cantilever structures on the two side walls, so that the main positioning of the grounding terminal is completed; the upper end of the grounding terminal is in interference fit with the lug structure of the insulating body through the barb-shaped bulge, and the barb-shaped bulge pierces the lug structure to complete the mutual fixation of the grounding terminal and the insulating body; the horizontal insertion piece end part reverse buckling structure formed by bending the hook-shaped cantilever structure at the lower end of the grounding terminal on the outer side completely penetrates into the horizontal insertion hole on the side wall of the accommodating groove of the insulating body, so that the body is firmly hooked, and the grounding terminal is prevented from being separated from the insulating body when in use. Two anti-disengaging structures mutually support and reach ground terminal's final fixed, make ground terminal more stable firm in transportation, use, the security is high.

The beneficial technical effects of the invention are as follows: the invention designs the transverse fixed contact, the vertical fixed contact and the elastic contact on the grounding terminal to form an inclined channel, when the guide rail is assembled, the guide rail is inserted into the inclined channel, when the guide rail is pulled to rotate to complete the assembly, the guide rail presses the elastic contact to deform by taking the transverse fixed contact as a fulcrum, so that one end of the guide rail is firmly buckled and connected with the insulating body, meanwhile, the other end of the guide rail is tightly clamped with the transverse fixed contact and the elastic contact of the grounding terminal, the grounding terminal can not generate the adverse conditions of terminal thermal deformation, terminal yield and the like when the product is used in a through-flow way and the guide rail is disassembled, the product is more stable and safe to use, the grounding terminal can form a single-layer structure and a double-layer structure, the single-layer grounding terminal has simple structure and lower cost, the guide rail is more convenient to disassemble while the stable clamping force is kept, and the double-layer grounding terminal is contacted with the guide rail, the number of contact points with the guide rail is increased, and the shock resistance current capability of the product is enhanced; adopt the integral type structure, the product is whole more firm, has avoided comparatively complicated equipment mode simultaneously, when satisfying high impulse current, uses also very conveniently.

Drawings

Fig. 1 is a perspective view of a ground terminal in embodiment 1;

fig. 2 is a front view of the ground terminal in embodiment 1;

fig. 3 is a plan view of the ground terminal in embodiment 1;

fig. 4 is a right side view of the ground terminal in embodiment 1;

FIG. 5 is a front view of the insulating body according to embodiment 1;

FIG. 6 is a partial cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a schematic view showing a state where the guide rail is assembled in embodiment 1;

FIG. 8 is a schematic view showing a state in which the insulating housing is rotated counterclockwise in embodiment 1;

FIG. 9 is an enlarged view of portion B of FIG. 8;

FIG. 10 is a view showing a state where the assembly of the guide rail is completed in embodiment 1;

fig. 11 is a perspective view of the ground terminal in embodiment 2;

fig. 12 is a developed state view of the ground terminal in embodiment 2;

FIG. 13 is a front view of the insulating body according to embodiment 2;

FIG. 14 is a partial cross-sectional view taken along line C-C of FIG. 13;

FIG. 15 is a schematic view showing a state where the guide rail is assembled in embodiment 2;

FIG. 16 is an enlarged view of portion D of FIG. 15;

FIG. 17 is a schematic view showing a state in which the insulating housing is rotated counterclockwise in embodiment 2;

FIG. 18 is a view showing a state where the assembly of the guide rail is completed in embodiment 2;

FIG. 19 is an enlarged view of section E of FIG. 18;

FIG. 20 is a sectional view taken along line F-F in FIG. 19;

fig. 21 is a sectional view taken along line G-G in fig. 19.

Detailed Description

The invention is described in further detail below with reference to the figures and specific examples.

Example 1: the grounding terminal is of a single-layer structure, and the single-layer grounding terminal 10 is matched with an insulating body assembled by a metal sheet to achieve stable contact with a guide rail.

The single-layer ground terminal 10 is welded with the PCB board in the insulating body 20 through the first welding point 11, so that a passage is formed inside the product.

The single-layer grounding terminal is in transition fit with the first fixing convex column 23 of the insulating body through the middle first circle 15 of the hook-shaped cantilever structure of the single piece, so that the main positioning of the single-layer grounding terminal is completed; the upper end of the single-layer grounding terminal 10 is in interference fit with a horizontal slot 21 of the insulating body through a first inverted buckle structure 17 on the horizontal insertion sheet, and the first inverted buckle structure 17 is buckled with a concave part of the first horizontal slot 21 to complete the mutual fixation of the single-layer grounding terminal 10 and the insulating body; the lower end metal sheet of the hook-shaped cantilever structure 16 of the single-layer ground terminal 10 is fastened and fixed by the inverted-buckle-shaped body fastening structure 22 of the insulation body, so as to prevent the single-layer ground terminal 10 from being separated from the insulation body when in use. Two anti-drop, fixed knot construct and accomplished single-deck ground terminal 10 and its insulator complete fixation, make ground terminal more stable firm in transportation, use, the security is high.

The single-layer ground terminal 10 has three contact points, namely a first transverse fixed contact 12, a first vertical fixed contact 13 and a first elastic contact 14, which are in close contact with the guide rail 1. When the product is used, the product is firstly inclined by a certain angle, so that the inclined channel of the single-layer grounding terminal and the right side of the guide rail are smoothly inserted together, and the guide rail and the insulating body are in an inclined state with an included angle during insertion, so that the guide rail and the inclined channel of the single-layer grounding terminal are in clearance fit at the moment; then, the insulating body is buckled anticlockwise downwards, in the rotating process, the gap between the single-layer grounding terminal on the right side and the guide rail is gradually reduced until the single-layer grounding terminal is completely propped against the guide rail, and at the moment, the first transverse fixed contact 12, the first vertical fixed contact 13 and the first elastic contact 14 of the single-layer grounding terminal 10 are completely contacted with the guide rail; finally, the insulation body is still buckled downwards counterclockwise by applying force, because the single-layer grounding terminal in the previous state is completely contacted with the guide rail, when the insulation body is buckled downwards again, the first elastic plastic structure 24 on the left side can be smoothly clamped into the guide rail on the left side, and the first elastic plastic structure 24 provides stable and reliable Fa and Fb force to enable the guide rail to be tightly connected with the single-layer grounding terminal.

Example 2: the ground terminal has a double-layer structure, and the double-layer ground terminal 30 is formed by bending a plate inwardly at a bottom surface 33 to form a first side wall 31 and a second side wall 32 of a U-shaped structure, respectively, so as to form a double-layer ground terminal, which is an integrated double-layer ground terminal.

The double-layer grounding terminal is welded with the PCB in the product through the second welding point 37, so that a passage is formed in the product.

The double-layer grounding terminal 30 is in transition fit with the second fixed convex column 42 of the insulating body through a second circle 34 in the middle of the double-piece hook-shaped cantilever structure to complete the main positioning of the double-layer grounding terminal; a notch structure is formed on the bottom surface of the U-shaped structure at the upper end of the double-layer grounding terminal 30, barb-shaped protrusions 35 are respectively formed on two side walls of the notch, the barb-shaped protrusions 35 are in interference fit with the bump structures 41 of the insulating body, and the barb-shaped protrusions penetrate into the bump structures 41 to complete the mutual fixation of the double-side grounding terminal 30 and the insulating body; the hook-shaped cantilever structure at the outer side of the double-side grounding terminal 30 is bent to form a horizontal insertion sheet, the end part of the horizontal insertion sheet of the double-side grounding terminal 30 forms a second reverse-buckling structure 36, and the second reverse-buckling structure 36 completely extends into the second horizontal slot 43 of the insulating body to firmly hook the insulating body, so that the double-layer grounding terminal is prevented from being separated from the insulating body when in use. Two anti-disengaging structures mutually support and reach double-deck ground terminal's final fixed, make double-deck ground terminal more stable firm in transportation, use, the security is high.

The double-layer grounding terminal has six contact points which are respectively a second transverse fixed contact 311, a third transverse fixed contact 321, a second vertical fixed contact 313, a third vertical fixed contact 323, a second elastic contact 312 and a third elastic contact 322, and the six contact points are in close contact with the guide rail 01, wherein the second transverse fixed contact 311, the second elastic contact 312, the third transverse fixed contact 321 and the third elastic contact 322 are in interference fit with the guide rail. The contact points of the rail and the double-layered ground terminal 30 are in interference fit, so that the contact points in interference are provided with opposite external tension. At this time, the first hook-shaped cantilever structure 314 and the second hook-shaped cantilever structure 324 of the double-layer ground terminal 30 play a crucial role in the whole process of matching with the guide rail, because the first hook-shaped cantilever structure 314 and the second hook-shaped cantilever structure 324 are formed by long circular arcs, and the long circular arc structures of the cantilevers deform under the action of external tension provided by the guide rail, so that stable clamping force is provided for the guide rail, and the product is safer and more reliable in the use process. And because the long circular arc is a deformable structure, stable clamping force is provided, and the guide rail is more convenient to disassemble.

When the guide rail is installed next, the assembly principle of the double-layer grounding terminal is consistent with that of the single-layer grounding terminal, the insulation body is buckled anticlockwise downwards, and the second elastic plastic structure 44 is also arranged on the left side of the insulation body to provide stable and reliable Fa and Fb force, so that the guide rail 1 is connected with the double-layer grounding terminal 30 more tightly.