JP2021180142A - Both switch knife contact plug type connector - Google Patents

Abstract

To provide a both-switch knife contact plug type connector which has low cost, small volume, high current resistance, high efficiency percentage and high waterproof property.SOLUTION: At least one first switch knife 11 is protrusively provided on a male terminal connection member 10, and a first front surface 111 is formed on the first switch knife 11. At least one second switch knife 21 is protrusively provided on a female terminal connection member 20, and a second front surface 211 is formed on the second switch knife 21. The second switch knife 21 is provided in an insertion groove 22, and a position limitation rib 221 is protrusively provided in the insertion groove 22. The first switch knife 11 of the male terminal connection member 10 is inserted to the insertion groove 22 of the female terminal connection member 20, and thereby the first front surface 111 and the second front surface 211 are pushed against each other and connected with each other. At this time, the second switch knife 21 is elastically deformed to come into contact with the position limitation rib 221, and an elastic deformation amount between the first switch knife 11 and the second switch knife 21 is limited.SELECTED DRAWING: Figure 2

Description

The present invention relates to a connector for a digital signal and a power supply, and particularly to a connector for both switch knives with low cost, small volume, high current resistance, high quality, and high waterproofness, in which both switch knives are connected to each other.

A conventional connector is a connection component for a digital signal and a power supply, and its main function is provided for the power supply connection of various electronic devices, so that the signal can be transmitted reliably and the operation of the equipment is ensured. It is necessary to maintain a stable connection state both in the power supply and in signal transmission, and poor contact may amplify the electrical resistance or cause the breaker to trip. In addition, when both ends of the connector are prone to vibration or shaking, the demand for connector connection stability increases, so many conventional connectors are provided with a switch knife terminal at the male end head (blade-shaped or plate-shaped structure). ), An elastic single terminal is provided on the female end head. By firmly sandwiching the switch knife with the excellent elasticity of the elastic single terminal, it is possible to tolerate dimensional errors that occur during production, maintain the production non-defective rate of the connector, and provide a stable conductive effect. However, if you look closely at the conventional structure as described above, there are still some shortcomings. The main reason is that the elastic piece terminal requires a larger assembly space than the switch knife, and when the volume of the elastic piece terminal is reduced, the production difficulty is doubled and a high defect rate occurs, and the defect rate is too small. Thin terminals have a lower withstand current. For this reason, it is difficult to reduce the volume of the connector due to the limitation of the terminals, and the present invention is improved so as to connect with both switch knives, thereby effectively overcoming the above-mentioned drawbacks. Since the double switch knife plugging type causes many problems, the double switch knife plugging type is not adopted in the prior art. The main cause is insufficient elasticity of both switch knives, if both switch knives are too far apart, a poor contact situation will occur, and if both switch knives are too close, they will push each other excessively and excessively. Since both switch knives deformed to bend, there is a drawback that a larger gap is created and the conductive contact area is insufficient. As described above, since the demand for dimensional accuracy of both switch knife plugging type connectors is too high, it is difficult to meet the usage demands such as low cost, small volume, high current withstand, and high non-defective rate.

Therefore, the present inventor has obtained the present invention full of practicality as a result of detailed design and careful evaluation of the above-mentioned goals based on many years of experience in manufacturing development and design of related products.

The problem to be solved by the present invention solves the conventional technical problems and provides a double-switch knife plug-in type connector.

In both switch knife plugging type connectors, at least one first switch knife is projected from the male end connecting member, and the first switch knife is formed with a first front surface and a first back surface. At least one second switch knife is projected from the female end connecting member, and the second switch knife is formed with a second front surface and a second back surface. The first switch knife and the second switch knife have a plate structure having the same thickness, and the second switch knife is provided in the insertion groove, and the insertion groove is the second switch knife of the second switch knife. (Ii) A position-limited rib is projected on the back surface, and the position-limited rib abuts on the second back surface at the bottom of the insertion groove. Further, a deformation allowable angle is formed between the position-limited rib and the second back surface, and the first switch knife of the male end connecting member is inserted into the insertion groove of the female end connecting member to form the first. The first front surface of the switch knife and the second front surface of the second switch knife are pressed against each other and connected. At this time, the second switch knife is elastically deformed and hits the position-limited rib, so that the amount of elastic deformation between the first switch knife and the second switch knife is limited.

The male end connecting member penetrates the first switch knife by a cover body, and the female end connecting member penetrates the second switch knife by a block body. Since the elasticity of the block body is higher than the elasticity of the cover body, the second switch knife has a larger amount of deformation elasticity than the first switch knife.

The male end connecting member penetrates the first switch knife by a cover body, and the cover body is provided around the first switch knife to form a ring. The female end connecting member includes a block body and a connection base, and the block body penetrates the second switch knife and also penetrates the connection base to provide the insertion groove. The connection base is expanded to one end of the insertion groove to connect the positioning chamber, the block body is fixed to the positioning chamber, and the block body is applied to the opening at one end of the insertion groove. The block body is formed at the bottom of the insertion groove, and the relative position between the second switch knife and the position-limited rib can be positioned. The female end connecting member is inserted into the ring of the male end connecting member by the connecting base.

An external thread step is formed on the surface of the ring at one end of the cover body, a male end body is incorporated at the other end of the cover body, and a female end body is one end at which the connection base is fixed to the block body. Be incorporated. The female end body is fitted with a nut, and the female end body is formed with a convex ring capable of blocking the nut, and the nut is tightened to the external thread step.

The connection base is fitted with a water stop ring, and a protrusion ring is projected from the opening peripheral edge of the ring, and the protrusion ring is used to push the water stop ring in front of the connection base and the ring. A leak prevention effect is formed between the two.

A plurality of signal needles are provided in the cover body, a plurality of through holes are provided in the connection base, and a plurality of signal connection rods penetrate the connection base and are installed in the through holes. Further, the male end connecting member and the female end connecting member are connected to each other to form an electrical connection between the signal needle and the signal connecting rod.

A plurality of signal switch knives penetrate the cover body of the male end connecting member, and a plurality of square holes are provided in the connection base of the female end connecting member, whereby a plurality of communication switch knives are connected. It is provided in the square hole through the base. Further, the square hole is provided with a blocking rib on the surface adjacent to the communication switch knife, and the male end connecting member and the female end connecting member are plugged together to form a signal switch knife and the communication switch knife. Form a connection. At the same time, when the signal switch knife and the communication switch knife are pressed against each other, the communication switch knife hits the blocking rib, so that the amount of elastic deformation between the signal switch knife and the communication switch knife is reduced. Restrict.

The allowable deformation angle is an angle formed by one point where the position-limited rib and the second switch knife are in contact with each other and two points where the second switch knife is not in contact with each other, and the allowable deformation angle is 0.5 degrees. Between 1.5 degrees.

The second switch knife pushes up the first switch knife, and the first switch knife hits the inner wall surface of the insertion groove at the free end position of the first back surface to push the first switch knife to push the second switch. Push toward the knife.

The male end connecting member penetrates the first switch knife by a cover body, and the female end connecting member penetrates the second switch knife by a block body. The length of the second switch knife extended from the block body is longer than the length of the first switch knife protruding from the cover body, and the second switch knife has a larger amount of elastic deformation than the first switch knife.

The first main object of the present invention is that since the first switch knife and the second switch knife have a plate structure having the same thickness, the same structure has the effect of reducing the mold opening cost and the inventory cost. Further, by connecting the male end connecting member and the female end connecting member by both switch knife plugging type, more power supply terminals can be installed in a limited space, and the first switch knife and the first switch knife can be installed. Utilizing the state where the two switch knives are connected to each other face to face, the volume of the connector is effective under the same rated current state by increasing the current value that can be withstood by the male end connecting member and the female end connecting member. Can be reduced to.

A second main object of the present invention is that the position-restricted rib, the one end where the second switch knife is in contact with each other, and the two surfaces which are not in contact with each other form the deformation allowable angle, and the position-restricted rib is formed. By utilizing the fact that the second back surface of the second switch knife is applied to the second switch knife, it is possible to prevent the second switch knife from being deformed too much and separating from the first switch knife. The first switch knife and the second switch knife are Even when the relative positions are closer to each other, the contact between the surfaces is maintained, the defect tolerance rate during production is increased, and the quality and the non-defective rate are combined.

Other objectives, advantages and novelty of the present invention will be clarified from the following detailed explanations and drawings.

FIG. 1 is a three-dimensional view showing a double-switch knife plug-in type connector according to the present invention. FIG. 2 is a three-dimensional exploded view showing a double-switch knife plug-in type connector according to the present invention. FIG. 3 is a three-dimensional exploded view of the double-switch knife plug-in type connector according to the present invention. FIG. 4 is a vertical sectional view of the female end connecting member of the present invention. FIG. 5 is a cross-sectional view of the female end connecting member of the present invention. FIG. 6 is a diagram (1) showing a usage state of the present invention. FIG. 7 is a diagram (2) showing a usage state of the present invention. FIG. 8 is a diagram (3) showing a usage state of the present invention. FIG. 9 is a cross-sectional view of the AA cut surface of FIG. 8 according to the present invention. FIG. 10 is a vertical sectional view of another embodiment of the present invention. FIG. 11 is a partially three-dimensional exploded view of still another embodiment of the present invention. FIG. 12 is a vertical sectional view of still another embodiment of the present invention. FIG. 13 is a cross-sectional view of still another embodiment of the present invention.

First, see FIGS. 1 to 5. The both switch knife plugging type connectors of the present invention include a male end connecting member 10 and a female end connecting member 20. At least one first switch knife 11 is projected from the male end connecting member 10, and the first switch knife 11 is formed with a first front surface 111 and a first back surface 112. The male end connecting member 10 penetrates the first switch knife 11 by the cover body 12, and the cover body 12 is provided around the first switch knife 11 to form a ring 13. At least one second switch knife 21 is projected from the female end connecting member 20, and the second switch knife 21 is formed with a second front surface 211 and a second back surface 212. The first switch knife 11 and the second switch knife 21 have a plate structure having the same thickness, and the same structure has the effect of reducing the mold opening cost and the inventory cost. Further, the first switch knife 11 and the second switch knife 21 are made of the same material, and the maximum current value that the male end connecting member 10 and the female end connecting member 20 can withstand becomes the same. In addition to being able to effectively reduce the overall volume, it also has the effect of withstanding high currents. Further, the second switch knife 21 is installed in the insertion groove 22, and the insertion groove 22 has a position-limited rib 221 projecting from the second back surface 212 of the second switch knife 21, and the position-limited rib 221 is provided. Hits the second back surface 212 at the bottom of the insertion groove 22. Further, a deformation allowable angle θ is formed by the position-limited rib 221 and the second back surface 212, and the deformation allowable angle θ is not in contact with one end where the position-limited rib 221 and the second switch knife 21 are in contact with each other. It is an angle formed by the two surfaces, and the angle of the allowable deformation angle θ is between 0.5 degrees and 1.5 degrees, and the most preferable allowable deformation angle θ is 1 degree. More specifically, the female end connecting member 20 includes a block body 23 and a connecting base 24. The block body 23 penetrates the second switch knife 21 and also penetrates the connection base 24 to provide the insertion groove 22. The connection base 24 is enlarged at one end of the insertion groove 22 to allow the positioning chamber 241 to communicate with each other, and the block body 23 is fixed to the positioning chamber 241 and further, the insertion groove 22 is formed by the block body 23. By hitting the opening at one end, the block body 23 is formed at the bottom of the insertion groove 22, and the relative position between the second switch knife 21 and the position limiting rib 221 can be positioned. The female end connecting member 20 is inserted into the ring 13 of the male end connecting member 10 by the connecting base 24, and the first switch knife 11 of the male end connecting member 10 is the female end connecting member 20. By inserting into the insertion groove 22, the first front surface 111 of the first switch knife 11 and the second front surface 211 of the second switch knife 21 are pressed against each other and connected. At this time, the second switch knife 21 is elastically deformed to hit the position limiting rib 221, and at the same time, the second switch knife 21 pushes up the first switch knife 11, and the first switch knife 11 is the first. The first switch knife 11 and the second switch are pushed in order to push the first switch knife 11 toward the second switch knife 21 by hitting the inner wall surface of the insertion groove 22 at the free end position of the back surface 112. The amount of elastic deformation between the knife 21 and the knife 21 can be limited, and the first front surface 111 and the second front surface 211 are in complete contact with each other. Further refer to FIG. 8 together with FIGS. 2 and 3. An external thread step 131 is formed on the surface of the ring 13 at one end of the cover body 12, a male end body 14 is incorporated at the other end of the cover body 12, and the connection base 24 is fixed to the block body 23. A female end body 25 is incorporated in one end. A nut 26 is fitted to the female end body 25, and a convex ring 251 capable of blocking the nut 26 is formed on the female end body 25, and the nut 26 is tightened to the external thread step 131. By such a screw tightening method, the male end connecting member 10 and the female end connecting member 20 are prevented from being separated from each other without permission. The connection base 24 is fitted with a water stop ring 27, and a protrusion ring 132 is projected from the opening peripheral edge of the ring 13, and the protrusion ring 132 is used to push the water stop ring 27 in front. A leak prevention effect is formed between the connection base 24 and the ring 13. Further, when the nut 26 is tightened to the external thread step 131, the elasticity of the water stop ring 27 provides an appropriate relaxation effect, and excessive tightening causes the nut 26 and the external thread step 131 to be deformed. Prevent it from breaking.

Among them, a plurality of signal needles 15 are provided in the cover body 12, a plurality of through holes 242 are provided in the connection base 24, and a plurality of signal connection rods 28 penetrate the connection base 24 and the through holes. It is installed at 242. Further, the male end connecting member 10 and the female end connecting member 20 are connected to each other to form an electrical connection between the signal needle 15 and the signal connecting rod 28. The second switch knife 21 is symmetrically installed on the connection base 24 of the female end connecting member 20, and the signal connecting rod 28 is limited by being installed in an annular shape on the outer peripheral edge of the second switch knife 21. It provides the connection function of power supply and signal source at the same time in the space.

Please continue to refer to FIGS. 4 to 9 for the effects actually used. When the male end connecting member 10 and the female end connecting member 20 are inserted and connected, the male end connecting member 10 is fitted to the connection base 24 of the female end connecting member 20 by the ring 13 of the cover body 12 at the same time. , The first switch knife 11 is inserted into the insertion groove 22 of the connection base 24. At this time, the free ends of the first switch knife 11 and the second switch knife 21 are pressed against each other, and the second switch knife is elastically deformed by both the first switch knife 11 and the second switch knife 21. When 21 bends toward the position-limited rib 221 and the second back surface 212 of the second switch knife 21 completely hits the position-limited rib 221, the second switch knife 21 is deformed too much and the first. Prevents you from moving away from the switch knife 11. Similarly, the second front surface 211 of the second switch knife 21 is used to firmly push the first front surface 111 of the first switch knife 11, and the male end connecting member 10 and the female end connecting member 20 are connected to each other. When connected to each other, the first switch knife 11 deforms in the direction of the first back surface 112, and the free end of the first back surface 112 of the first switch knife 11 hits the inner wall surface of the insertion groove 22. The first switch knife 11 can be prevented from being deformed too much and separated from the second switch knife 21, and the amount of elastic deformation between the first switch knife 11 and the second switch knife 21 can be limited. The surface of the front surface 111 and the surface of the second front surface 211 are connected to each other. According to the structure of the specific embodiment described above, the following effects can be obtained. 1. Since the first switch knife 10 and the second switch knife 20 are connected by both switch knife plugging type (plate structure of the same thickness), more power supply terminals can be installed in a limited space. Further, by utilizing the state in which the first switch knife 11 and the second switch knife 21 are connected to each other face to face, the current value that the male end connecting member 10 and the female end connecting member 20 can withstand is increased. Therefore, the volume of the connector can be effectively reduced under the same rated current. 2. The female end connecting member 20 has the position-limited rib 221 projecting in the insertion groove 22, and the position-limited rib 221 abuts against the bottom of the insertion groove 22 with the second back surface 212. Further, a deformation allowable radius θ is formed by one end of the position-limited rib 221 and the second switch knife 21 in contact with each other and two surfaces not in contact with each other, and the position-limited rib 221 is the second switch knife 21. By utilizing the second back surface 212 of the above, it is possible to prevent the second switch knife 21 from being excessively deformed and separated from the first switch knife 11. When the first front surface 111 and the second front surface 211 are maintained in a face-to-face electrical connection and the position limiting rib 221 utilizes a block against the second switch knife 21, the first switch knife 11 and the first switch knife 11 and the second. The contact between the two switch knives 21 is maintained even when the relative positions are closer to each other, the defect tolerance rate at the time of production is increased, and the quality and the non-defective rate are combined.

See FIGS. 7 and 8 for one specific embodiment of the present invention. The male end connecting member 10 penetrates the first switch knife 11 by the cover body 12, and the female end connecting member 20 penetrates the second switch knife 21 by the block body 23. Since the elasticity of the block body 23 is higher than the elasticity of the cover body 12, the second switch knife 21 has a larger amount of deformation elasticity than the first switch knife 11. See FIG. 10 for another specific embodiment of the present invention. The male end connecting member 10 penetrates the first switch knife 11 by the cover body 12, and the female end connecting member 20 penetrates the second switch knife 21 by the block body 23. The length of the second switch knife 21 extended from the block body 23 is longer than the length of the first switch knife 11 protruding from the cover body 12, and the second switch knife 21 is larger than the first switch knife 11. It has an elastic deformation amount. According to the characteristics of the above structure, the second switch knife 21 is first elastically deformed by the first switch knife 11, and the second switch knife 21 hits the position limiting rib 221 and then stops deforming. The first switch is prevented from being separated from the free end of the second switch knife 21 from the first switch knife 11, and the amount of deformation is increased by generating a reaction force against the first switch knife 11. The deformation order of the knife 11 and the second switch knife 21 is effectively controlled, the limiting effect is prevented from being lost by the second switch knife 21 not hitting the position limiting rib 221, and the stability of the connection is improved. increase.

See FIGS. 11-13 for another specific embodiment of the present invention. A plurality of signal switch knives 16 penetrate the cover body 12 of the male end connecting member 10, and a plurality of square holes 243 are provided in the connection base 24 of the female end connecting member 20. A communication switch knife 29 is provided in the square hole 243 through the connection base 24. Further, the square hole 243 is provided with a blocking rib 244 on the surface adjacent to the communication switch knife 24, and the male end connecting member 10 and the female end connecting member 20 are plugged together with the signal switch knife 16. It forms an electrical connection with the communication switch knife 29. At the same time, the signal switch knife 16 and the communication switch knife 29 are pressed against each other, and the communication switch knife 29 hits the blocking rib 244, whereby the signal switch knife 16 and the communication switch knife 29 are brought into contact with each other. Limit the amount of elastic deformation between.

Since the above is only a part of the examples according to the present invention, the scope of implementation of the present invention is not limited. That is, changes, modifications, etc. made within the scope of the claims of the present invention should also belong to the scope of the present invention.

10 Male end connection member 11 First switch knife 111 First front 112 First back surface 12 Cover body 13 Ring 131 External thread step 132 Protrusion ring 14 Male end body 15 Signal needle 16 Signal switch knife 20 Female end connection member 21 Second Switch knife 211 Second front 212 Second back 22 Insertion groove 221 Position limited rib 23 Block body 24 Connection base 241 Positioning chamber 242 Through hole 243 Square hole 244 Blocking rib 25 Female end body 251 Convex ring 26 Nut 27 Water stop ring 28 Signal connection rod 29 Communication switch knife θ Deformation allowable angle

Claims (10)

A double-switch knife plug-in connector that includes a male-end connecting member and a female-end connecting member.
At least one first switch knife is projected from the male end connecting member, and the first switch knife is formed with a first front surface and a first back surface.
At least one second switch knife is projected from the female end connecting member, and the second switch knife is formed with a second front surface and a second back surface. What are the first switch knife and the second switch knife? It has a plate structure of the same thickness, and the second switch knife is provided in the insertion groove, and the insertion groove has a position limiting rib projecting from the second back surface of the second switch knife to the above position. The limited rib is applied to the second back surface at the bottom of the insertion groove, and a deformation allowable angle is formed between the position limited rib and the second back surface, and the first switch knife of the male end connecting member is the female end. By inserting the connection member into the insertion groove, the first front surface of the first switch knife and the second front surface of the second switch knife are pressed against each other to connect, and at this time, the second switch knife is connected. Both switch knife plug-in type connectors, characterized in that the amount of elastic deformation between the first switch knife and the second switch knife is limited by elastically deforming and applying the position-limited rib. The male end connecting member penetrates the first switch knife by the cover body, and the female end connecting member penetrates the second switch knife by the block body, and the elasticity of the block body is higher than the elasticity of the cover body. Therefore, the double switch knife plugging type connector according to claim 1, wherein the second switch knife has a larger amount of deformation elasticity than the first switch knife. The male end connecting member penetrates the first switch knife by a cover body, the cover body is provided around the first switch knife to form a ring, and the female end connecting member has a block body and a connection base. Including, the block body penetrates the second switch knife and also penetrates the connection base to provide the insertion groove, and the connection base is enlarged at one end of the insertion groove to form a positioning chamber. The block body is interchanged, and the block body is fixed to the positioning chamber, and further, the block body is formed at the bottom of the insertion groove by hitting the opening at one end of the insertion groove with the block body, and the block body is formed at the bottom of the insertion groove. Both of claims 1, wherein the relative positions of the second switch knife and the position limiting rib can be positioned, and the female end connecting member is inserted into the ring of the male end connecting member by the connecting base. Switch knife plug-in type connector. An external thread step is formed on the surface of the ring at one end of the cover body, a male end body is incorporated at the other end of the cover body, and a female end body is one end at which the connection base is fixed to the block body. The third aspect of claim 3, wherein the female end body is fitted with a nut, the female end body is formed with a convex ring capable of blocking the nut, and the nut is tightened to the external thread step. Both switch knife plug-in type connector. The connection base is fitted with a water stop ring, and a protrusion ring is projected from the opening peripheral edge of the ring, and the protrusion ring is used to push the water stop ring in front of the connection base. The double switch knife plug-in type connector according to claim 3, wherein a leakage prevention effect is formed between the two switches and the knife. The cover body is provided with a plurality of signal needles, the connection base is provided with a plurality of through holes, a plurality of signal connection rods are provided through the connection base and installed in the through holes, and the male end connection is provided. The both switch knife plug-in type connector according to claim 2 or 3, wherein the member and the female end connecting member are connected to each other to form an electrical connection between the signal needle and the signal connecting rod. A plurality of signal switch knives penetrate the cover body of the male end connecting member, and a plurality of square holes are provided in the connection base of the female end connecting member, whereby a plurality of communication switch knives are connected. The square hole is provided in the square hole through the base, and the square hole is provided with a blocking rib on the surface adjacent to the communication switch knife, and the male end connecting member and the female end connecting member are plugged together. At the same time as forming a connection between the signal switch knife and the communication switch knife, the signal switch knife and the communication switch knife are pressed against each other, and the communication switch knife hits the blocking rib to obtain the signal. The both switch knife plugging type connector according to claim 2 or 3, wherein the amount of elastic deformation between the switch knife and the communication switch knife is limited. The deformation allowable angle is an angle formed by one point where the position-limited rib and the second switch knife are in contact with each other and two points where the second switch knife is not in contact with each other, and the deformation allowable angle is 0.5 degrees to 1. The double-switch knife plug-in connector according to claim 1, wherein the temperature is between 5 degrees. The second switch knife pushes up the first switch knife, and the first switch knife hits the inner wall surface of the insertion groove at the free end position of the first back surface to push the first switch knife and the second switch. The double-switch knife plug-in type connector according to claim 1, characterized in that it is pushed in the direction of a knife. The male end connecting member penetrates the first switch knife by a cover body, the female end connecting member penetrates the second switch knife by a block body, and the second switch knife has a length extended from the block body. The two switch knife plugging according to claim 1, wherein the first switch knife is longer than the length protruding from the cover body, and the second switch knife has a larger elastic deformation amount than the first switch knife. Expression connector.

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