CN215869854U - Press and exempt from screw formula PCB binding post - Google Patents
Press and exempt from screw formula PCB binding post Download PDFInfo
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- CN215869854U CN215869854U CN202023287284.7U CN202023287284U CN215869854U CN 215869854 U CN215869854 U CN 215869854U CN 202023287284 U CN202023287284 U CN 202023287284U CN 215869854 U CN215869854 U CN 215869854U
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Abstract
The utility model has the technical scheme that the pressing screw-free PCB wiring terminal comprises a shell, a slider wiring terminal, a static wiring terminal, a cover plate and an elastic body, wherein the elastic body is placed at a proper position at the bottom of the shell; the slider wiring terminal and the static wiring terminal are meshed with each other, and through holes in the slider wiring terminal and the static wiring terminal are alternately staggered to form a closed state and are placed in a cavity of the shell; the cover plate is covered to complete the assembly; when the sliding wiring terminal is used, the button is pressed to move downwards, so that the first through hole and the second through hole are concentric with the axis of the wire insertion hole, one end of the wire is inserted into the first through hole and the second through hole, the button is released, and the sliding wiring terminal can be meshed with the static wiring terminal by means of the rebound force of the elastic body to clamp the wire. By the technology, when technicians or students practice or operate the wiring, the screw screwing action can be omitted, so that a large amount of time is saved, and the cost is effectively reduced.
Description
Technical Field
The utility model relates to a wiring terminal technology, in particular to a pressing screw-free PCB wiring terminal.
Background
At present, no matter in experimental teaching, daily life, can all relate to wire and wire in a large number in the industrial production, the work of being connected of wire and electrical apparatus, more traditional way generally has the welding, the adhesive tape is twined again in the kink or use the screw to fix the wire on electrical apparatus etc. this kind of traditional connection is comparatively firm in joint strength, but also can lead to the problem that the activity duration is long simultaneously, especially in this kind of main field that plays knowledge propagation of experimental teaching and demonstration occasion, teacher and student spend a large amount of time in the work that the wire is connected, cause the waste of a lot of time, make holistic efficiency lower, relative teaching cost is high.
Therefore, in view of the above problems, there is a need for a new technique that can improve the wiring efficiency of the wires, reduce unnecessary work content, improve the overall teaching efficiency, and spread knowledge to the society more quickly and widely.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a press screw-free PCB wiring terminal, aiming at achieving the effects of reducing the wiring time of a lead, saving labor force and further improving the overall social efficiency.
In order to solve the technical problems, the basic technical scheme provided by the utility model is as follows:
a press screw-free PCB wiring terminal comprising:
the device comprises a shell, a slider wiring terminal, a static wiring terminal, a cover plate and an elastic body;
the shell is provided with a PCB board jack and a lead jack;
the slider wiring terminal is provided with a movable tooth piece and a button, wherein the outline of the slider wiring terminal is in a shape like a Chinese character 'shan', and the movable tooth piece is provided with a first through hole;
the static wiring terminal is provided with two static tooth sheets which are arranged at intervals, an inner button through hole and a wiring slot communicated with the PCB board jack, and the static tooth sheets are provided with second through holes with the same inner diameter as the first through holes;
one end of the elastic body is placed at the bottom of the inner cavity of the shell, and the other end of the elastic body is in contact with the slider wiring terminal; the slider wiring terminal and the static wiring terminal are placed in a cavity of the shell in a meshing manner, after meshing, the axes of the first through hole and the second through hole are not concentric, and the button penetrates through the inner button through hole and can move relatively; the cover plate is provided with an outer button through hole corresponding to the button, the cover plate is fixed on the upper portion of the shell and presses the static wiring terminal, the button penetrates out of the outer button through hole and can move up and down freely, and the position of the second through hole corresponds to the position of the wire jack at the moment.
Furthermore, a plurality of protruding points are arranged on one side of the cover plate facing the housing cavity.
Furthermore, a plurality of supporting points corresponding to the protruding points are arranged in the cavity of the shell.
Further, the aperture of the wire insertion hole is larger than the inner diameters of the first through hole and the second through hole.
Furthermore, a limiting protrusion is arranged at the bottom of the cavity of the shell, the outer diameter of the limiting protrusion is slightly smaller than the inner diameter of the elastic body, and the distance between the upper surface of the limiting protrusion and the movable space formed by the lower surface of the slider wiring terminal is equal to the inner diameter of the first through hole.
Further, after complete meshing, the axle center distance between the first through hole of the slider wiring terminal and the second through hole of the static wiring terminal is equal to the inner diameter of the first through hole.
Further, the button is provided with an insulating cover.
Furthermore, the inner surfaces of the first through hole of the slider wiring terminal and the second through hole of the static wiring terminal are provided with sawteeth.
The utility model has the beneficial effects that:
the utility model has the technical scheme that the pressing screw-free PCB wiring terminal comprises a shell, a slider wiring terminal, a static wiring terminal, a cover plate and an elastic body, wherein a spring body is placed at a proper position at the bottom of the shell; the slider wiring terminal and the static wiring terminal are meshed with each other, and through holes in the slider wiring terminal and the static wiring terminal are alternately staggered to form a closed state and are placed in a cavity of the shell; the assembly can be completed by covering the cover plate; when the sliding wiring terminal is used, the button is pressed to move downwards, so that one end of the wire is inserted into the through hole and the axis of the second wiring terminal is positioned on the same line, and the button is loosened at the same time, and the sliding wiring terminal can be meshed with the static wiring terminal by means of the rebound force of the elastic body to clamp the wire. By the technology, when technicians or students practice or operate the wiring, the screw screwing action can be omitted, so that a large amount of time is saved, the overall efficiency is improved, and the cost is effectively saved.
Drawings
FIG. 1 is a schematic view of a press screw-free PCB terminal mounting of the present invention;
fig. 2 is a three-dimensional schematic view of a sliding terminal;
FIG. 3 is a three-dimensional schematic view of a static wire terminal;
fig. 4 is an internal sectional view of the press screw-free type PCB terminal;
fig. 5 is a sectional view showing a working state of the press screw-free type PCB terminal;
FIG. 6 is a cross-sectional view of the sliding terminal engaging the stationary terminal;
fig. 7 is a modified cross-sectional view of through-holes of the slide and stationary terminals.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 7, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
The utility model relates to a push type screw-free PCB wiring terminal, and a complete schematic diagram in working is shown in figure 1. The whole body shown on the right side of fig. 1 is a combination of the PCB housing and the circuit board of the conventional structure; socket 13 is formed by socket body 8 and wire 9 combination, wire 9's one end welds on PCB board 10 during operating condition, the other end then extends outside PCB shell 11, press as probe and matching exempt from screw formula PCB binding post 7 interference fit and then firm connection together, thereby reach the function that the electric conductance leads to, when the outer wire 6 is connected to needs, through pressing down behind button 21 to complete open mode, insert outer wire 6 and loosen button 21 again in the wiring hole and can accomplish the connection work of wire.
The utility model mainly aims at the occlusion structure of the press screw-free PCB wiring terminal 7 shown on the left side of figure 1 to innovate, and concretely aims at knowing the structures of the slider wiring terminal 2 and the static wiring terminal 3 in advance.
As shown in fig. 2, the slider terminal 2 has a shape of a "mountain", and is provided with a movable blade 23 and a button 21, wherein the movable blade 23 has a first through hole 22.
As shown in fig. 3, the static wiring terminal 3 is provided with two static tooth plates 35 arranged at intervals, an inner button through hole 31 and a wiring slot 34 communicated with the PCB board jack 11, and the static tooth plate 35 is provided with a second through hole 32 having the same inner diameter as the first through hole 22; the distance between the opposite plug wire slots 34 is slightly smaller than the thickness of the lead 9, so that the press screw-free type PCB wiring terminal 7 can be connected with the corresponding socket 13 of the PCB more firmly due to interference fit when the plug wire slots 34 are inserted into the lead 9. And one end of the probe 33 close to the PCB board jack 11 is rounded and the diameter of the PCB board jack 11 is larger than the distance of the plug wire groove 34, so that the lead wire 9 is easier to be inserted into the plug wire groove 34.
Referring in detail to fig. 4, an internal cross-sectional view of the press type screw-free PCB terminal includes: the connecting structure comprises a shell 1, a slider connecting terminal 2, a static connecting terminal 3, a cover plate 4 and an elastic body 5. Two sides of the shell 1 are respectively provided with a PCB board jack 11 and a lead jack 12 with non-overlapping axial leads. Wherein the elastic body 5 is placed at the bottom of the cavity of the shell 1; the movable teeth of the slider wiring terminal 2 and the static wiring terminal 3 are combined and placed in the cavity of the shell 1, the lower surface 201 of the slider wiring terminal is contacted with the elastic body 5, the slider wiring terminal 2 can keep the upward movement trend by relying on the rebound force generated by the elastic deformation of the elastic body 5, the axis of the first through hole 22 of the slider wiring terminal 2 is staggered with the axis of the second through hole 32 to be in a closed state, and the elastic body 5 can be a spring or other materials with rebound property, such as rubber and the like; the cover plate 4 is connected with the housing 1 in a buckling manner, obviously, other manners can also be adopted, such as interference fit between the cover plate 4 and the housing 1 and reinforced connection by adding glue, at the moment, the static wiring terminal 3 is fixed at the upper part of the housing 1, the opening end of the wiring slot 34 faces the direction of the PCB board jack 11, and at the moment, the second through hole 32 and the wire jack 12 are coaxial; in order to further fix the static connecting terminal 3, a plurality of protruding points 42 are provided on the cover plate 4, and it is obvious that the protruding points 42 may be in a simple protruding point form, and may also be configured as long-strip-shaped protrusions along the length direction of the static connecting terminal 3, and in order to make the fixing of the static connecting terminal 3 more uniformly stressed, the supporting points 13 corresponding to the protruding points 42 are also provided in the cavity of the housing 1.
Fig. 5 shows the working condition of the present invention and illustrates the working principle thereof, since one end of the stationary terminal 3 is fixed to the upper portion of the housing 1 by the cover plate 4, when an external force F is applied, the slide block terminal 2 moves downwards to gradually press the elastic body 5 and generate a rebound force which is enhanced along with the downward pressing, when the slide block terminal 2 moves downwards continuously, the slide block terminal touches the limit bulge 14, at the moment, the second through hole 32, the first through hole 22 and the wire insertion hole 12 are completely converged to the maximum value to form a cavity 101, in order to ensure that the accurate maximum value cavity 101 can be formed by each pressing, it is necessary to make the distance of the movable space formed by the upper surface 141 of the stopper projection 14 and the lower surface 201 of the slider terminal 2 equal to the inner diameter of the first through-hole 22, and the outer diameter of the limiting bulge 14 is slightly smaller than the inner diameter of the elastic body 5, so that the installation of the elastic body 5 is convenient. Because the aperture of the wire insertion hole 12 is larger than the inner diameters of the first through hole 22 and the second through hole 32, and one end of the wire insertion hole 12 and the second through hole 32 facing the external wire 6 is chamfered, at this time, the external wire 6 is only required to be gently fed into the cavity 101 to a proper depth, and finally, the slider wiring terminal 2 automatically moves upwards under the action of the elastic body 5 as long as the external force applied to the button 21 is removed, the cavity 101 is gradually reduced until the external wire 6 is bitten, and the tooth-shaped structures formed by the relative movement of the two wiring terminals can more tightly bite the wire; after the connection of the external lead 6 and the press screw-free type PCB wiring terminal 7 is completed, the connection of the lead can be completed only by gently inserting the press screw-free type PCB wiring terminal 7 which is connected with the lead into the corresponding socket 13 of the PCB.
Fig. 6 shows the combination of the slider terminal 2 and the fixed terminal 3, the thickness of the fixed blade 35 being smaller than the distance between the adjacent moving blades 23, thus enabling the relative movement of the combination; and the static tooth plates 35 and the movable tooth plates 23 are alternately distributed, so that when the wiring terminals are occluded, the wires can be bitten like teeth. In the conventional PCB terminal field, it is not necessary to insulate the button and screw of the terminal, but in order to reduce the stimulation of metal to human body when the technician presses, an insulating cover 211 is mounted on the head of the button 21, the insulating cover 211 is made of an electrically insulating and flexible material, such as plastic, and can be assembled by interference fit, by using a screw, or by using a method such as plastic immersion plating, and the outer diameter of the finished insulating cover 211 should be smaller than the diameter of the inner button through hole 31.
Fig. 7 shows a cross-sectional view along the axial diameter direction of the first through hole 22 and the second through hole 32, in order to make the engagement between the sliding terminal 2 and the fixed terminal 3 have a stronger engaging force with the wire, the structure inside the cavity 101 may be designed as serrations 26, which when engaged will make the sliding terminal 2 and the fixed terminal 3 have sharper edges with respect to the wire, respectively, to firmly grip the wire.
In a word, through the technology, when later technicians or students practice or operate wiring, the technology can be used for saving the action of screwing screws, so that a large amount of time is saved, the overall efficiency is improved, the cost is effectively saved, and the technology has wide applicability in the fields of weak current, industrial control teaching and the like.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (8)
1. The utility model provides a press and exempt from screw formula PCB binding post which characterized in that includes:
the device comprises a shell (1), a slider wiring terminal (2), a static wiring terminal (3), a cover plate (4) and an elastic body (5);
the shell (1) is provided with a PCB board jack (11) and a lead jack (12);
the slider wiring terminal (2) is in a shape like a Chinese character 'shan' in the outline, and is provided with a movable tooth piece (23) and a button (21), wherein a first through hole (22) is formed in the movable tooth piece (23);
the static wiring terminal (3) is provided with two static tooth plates (35) which are arranged at intervals, an inner button through hole (31) and a wiring slot (34) which is communicated with the PCB board jack (11), and a second through hole (32) with the same inner diameter as the first through hole (22) is formed in each static tooth plate (35);
one end of the elastic body (5) is placed at the bottom of the inner cavity of the shell (1), and the other end of the elastic body is contacted with the slider wiring terminal (2); the sliding block wiring terminal (2) and the static wiring terminal (3) are placed in a cavity of the shell (1) in a meshing mode, after meshing, the axes of the first through hole (22) and the second through hole (32) are not concentric, and the button (21) penetrates through the inner button through hole (31) and can move relatively; be provided with outer button through-hole (41) corresponding with button (21) on apron (4), apron (4) are fixed in the upper portion of shell (1) compresses tightly simultaneously quiet binding post (3), button (21) are worn out outer button through-hole (41) and can freely move from top to bottom, and second through-hole (32) position this moment with wire jack (12) position corresponds.
2. A press-screw-free PCB terminal as claimed in claim 1, wherein:
the side of the cover plate (4) facing the cavity of the shell (1) is provided with a plurality of protruding points (42).
3. A press-screw-free PCB terminal as claimed in claim 2, wherein:
a plurality of supporting points (13) corresponding to the protruding points (42) are arranged in the cavity of the shell (1).
4. A press-screw-free PCB terminal as claimed in claim 1, wherein:
the diameter of the lead wire insertion hole (12) is larger than the inner diameters of the first through hole (22) and the second through hole (32).
5. A press-screw-free PCB terminal as claimed in claim 1, wherein:
the bottom of the cavity of the shell (1) is provided with a limiting protrusion (14), the outer diameter of the limiting protrusion (14) is slightly smaller than the inner diameter of the elastic body (5), and the distance between the upper surface (141) of the limiting protrusion (14) and the movable space formed by the lower surface (201) of the slider wiring terminal (2) is equal to the inner diameter of the first through hole (22).
6. A press-screw-free PCB terminal as claimed in claim 1, wherein:
after the slider wiring terminal (2) is completely meshed, the axial distance between the first through hole (22) of the slider wiring terminal (2) and the second through hole (32) of the static wiring terminal (3) is equal to the inner diameter of the first through hole (22).
7. A press-screw-free PCB terminal as claimed in claim 1, wherein:
the button (21) is provided with an insulating cover (211).
8. A press-screw-free PCB terminal as claimed in claim 1, wherein:
the inner surfaces of the first through hole (22) of the sliding block wiring terminal (2) and the second through hole (32) of the static wiring terminal (3) are provided with sawteeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023287284.7U CN215869854U (en) | 2020-12-30 | 2020-12-30 | Press and exempt from screw formula PCB binding post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023287284.7U CN215869854U (en) | 2020-12-30 | 2020-12-30 | Press and exempt from screw formula PCB binding post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215869854U true CN215869854U (en) | 2022-02-18 |
Family
ID=80237474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023287284.7U Active CN215869854U (en) | 2020-12-30 | 2020-12-30 | Press and exempt from screw formula PCB binding post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215869854U (en) |
-
2020
- 2020-12-30 CN CN202023287284.7U patent/CN215869854U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |