Pullable male power connector

Abstract

This invention belongs to the technical field of electrical connection components, specifically relating to a pullable male power supply terminal. The pullable male power supply terminal includes: a male terminal body with a latch hinged to its top surface; the rear part of the latch is bent upwards towards the top surface to form a latch tail shank, and a spring element at the hinge point between the male terminal body and the latch causes the latch tail shank to tilt upwards, with the tail end of the latch tail shank projecting vertically downwards onto the top surface. This ensures that when the pull strap, connected at both ends to the tail end of the latch tail shank and the tail surface of the male terminal body respectively, is pulled towards the tail surface due to the tilting of the latch tail shank, the gap between the top tail ridge at the junction of the top and tail surfaces and the finger stop of the pull strap is smaller than the size of a finger. The pull strap for releasing the pullable male power supply terminal does not have a specified direction of tension; as long as the tension is directed away from the female end, release can be achieved without resistance.

Description

Technical Field

[0001] This invention belongs to the field of electrical connection element technology, specifically relating to a pull-out power supply male terminal. Background Technology

[0002] Power can only be supplied after the male power supply terminal is plugged into the female power supply terminal. When power is used up, there is a need to disconnect the male power supply terminal from the female power supply terminal.

[0003] To prevent the male power terminal from loosening, current power supply terminals, both male and female, are generally equipped with matching mating structures. When separating the male and female power terminals, it is necessary to overcome the resistance created by these mating structures. The plug in Publication No. CN110299654B uses a spring-loaded locking mechanism where a spring clip springs into a slot to lock the plug and socket. With this type of spring-locked power supply terminal, when pulling the male power terminal out of the female terminal, manual force is required to first rotate the spring-loaded locking clip to disengage it before continuing to pull, overcoming the resistance generated by the interference fit between the male and female power terminals, and finally pulling out the male power terminal.

[0004] The scheme described in CN110299654B for manually rotating a spring-loaded latch involves a square protrusion on a cover plate with a gap between it and the cover plate. The cover plate also has a guide section. The pull ring has a square through hole, a guide groove, and barbs. During assembly, the square through hole is aligned with the square protrusion, and the guide groove is aligned with the guide section. Then, the connecting part is pressed down, and the connecting part is pulled backward. When pulled backward, the barbs pass under the square protrusion. After the barbs pass through, the pull ring is installed on the cover plate in a sliding connection manner. When unlocking, pulling the pull ring backward causes the connecting part of the pull ring to slide backward along the guide section. The mating part drives the locking spring to rotate counterclockwise around the pin. The latch at the front end of the locking spring moves downward, and the spring is deformed by force. When the locking spring rotates to a certain position, the latch disengages from the socket's slot. Continuing to pull the pull ring separates the plug from the socket.

[0005] The solution of manually rotating the spring-loaded latch has the following shortcomings. The reason for needing an additional pull ring is the limited space at the female end. After the male power supply is inserted into the female end, there is no space for a finger to press and rotate the latch. For example, there is no space for a finger to press the transition or mating part in CN110299654B to unlock, necessitating the extension of the connecting part and the force application hole. Furthermore, when the space at the female end is limited, the direction of the pulling force that the finger can apply to the pull member when pulling to unlock is often restricted, and it cannot always be applied in the optimal direction as intended by the solution. Again, taking CN110299654B as an example, the optimal direction of pulling force in this solution is to pull the pull ring horizontally outwards. However, sometimes there is insufficient space; after the arm is extended into the equipment, there may be components, cabinet walls, or even walls around the pull ring. In this case, the finger can only hook the force application hole, and the pull ring can only be pulled by retracting the arm. In this situation, the pulling force on the pull ring is almost never the ideal horizontal outwards, but rather in other directions. Taking the simplest example of an upward pulling force on a pull ring, when a hand reaches down to the male power terminal, hooks the pull ring with fingers, and pulls the ring by retracting the arm, the initial direction of the pulling force on the pull ring is upward or diagonally upward, and it will always be upward or diagonally upward. Due to the limiting structures such as square through holes and square protrusions, the vertical component of the pulling force will increase the friction between the limiting structures. Pulling upward to unlock is more difficult than pulling horizontally to unlock. The limiting structures such as square through holes and square protrusions will also be subjected to force. Because the male power terminal is small, these limiting structures are usually relatively thin. In usage scenarios where the non-horizontal outward pulling unlock method is used frequently, the lifespan of this product is significantly shorter than that of the product in usage scenarios where the horizontal outward pulling unlock method is used frequently.

[0006] Therefore, it is necessary to improve the tripping structure of the power supply male terminal that rotates the latch pressed by the spring by pulling, in order to solve the problem that when the direction of the pulling force on the power supply male terminal is not in the design-specified direction, the pulling tripping structure will force the pulling force to be decomposed into a component force along the design-specified direction and a resistance force along the non-design-specified direction. Summary of the Invention

[0007] The purpose of this invention is to provide a pull-out power male terminal to solve the technical problem that the pull-out structure of the current power male terminal will turn part of the pulling force into resistance when the direction of the pulling force is not the design specified direction.

[0008] To solve the above-mentioned technical problems, the present invention provides a pullable power male terminal, comprising: a male terminal body, the top surface of which is hinged with a fastener; the rear part of the fastener bends upward toward the top surface to form a fastener tail shank, and a spring element provided at the hinge point between the male terminal body and the fastener causes the fastener tail shank to tilt upward, so that the vertical downward projection of the tail end of the fastener tail shank is projected onto the top surface, so that when the pull straps connected at both ends to the tail end of the fastener tail shank and the tail surface of the male terminal body are pulled toward the tail surface due to the tilting of the fastener tail shank, the top surface... The gap between the top tail ridge and the finger stop of the pull strap at the junction with the tail face is smaller than the size of a finger; the two sides of the connection between the tail face and the pull strap are provided with finger stop protrusions, so that the finger stop gap and the finger-penetrating gap between the finger stop protrusions are located on both sides of the middle of the pull strap, so as to guide the finger to hook the middle of the pull strap through the finger-penetrating gap. When the middle of the pull strap is hooked in any direction away from the mother end, the upper part of the pull strap is always under tension during the process of bending the pull strap to the outside of the tail face, which drives the buckle to rotate and causes the buckle at the front of the buckle to disengage.

[0009] Furthermore, the upper part of the tail surface of the male end body tapers towards the insertion end of the male end body, and the two finger-stopping protrusions are located at the edge of the tail surface and gradually decrease upwards until they stop decreasing when they reach the middle sides of the pull strap, and continue to extend to form an edge protrusion ring that is the same height as the lowest finger-stopping protrusion and meets at the top tail edge.

[0010] Furthermore, the middle part of the pull strap that contacts the finger has a rough surface.

[0011] Furthermore, the pull strap is a fabric strip.

[0012] Furthermore, the top surface of the male end body is provided with a pair of hinge seats; the middle part of the fastener is hinged between the two hinge seats by a hinge rod.

[0013] Furthermore, the front part of the fastener has a fastening through hole, and the fastening through hole and the surrounding frame form the fastening part; the upper part of the insertion end of the male end body has a fastening groove that extends to the fastening through hole, so that when the insertion end of the male end body is inserted into the female end, the fastening protrusion on the female end enters the fastening groove, and the fastening part advances against the inclined front of the fastening protrusion until it fastens the fastening protrusion.

[0014] Furthermore, the spring is a torsion spring, which is sleeved on the hinge rod.

[0015] Furthermore, the tail end of the buckle is provided with an upper pull strap sleeve; the tail surface of the male end body is provided with a lower pull strap sleeve; the head of the pull strap is located at the lower pull strap sleeve, and the tail of the strap passes around the upper pull strap sleeve and extends to the lower pull strap sleeve and engages with the head of the strap.

[0016] The beneficial effects of this invention are that the two ends of the pull strap of the pullable male power terminal are respectively connected to the tail end of the buckle handle and the tail surface of the male terminal body. After the buckle handle is lifted by the spring, the vertical downward projection of the tail end of the buckle handle is on the top surface of the male terminal body. When the pull strap is pulled towards the tail surface due to the lifting of the buckle handle, the gap between the top tail ridge at the junction of the top surface and the tail surface and the finger stop of the pull strap is smaller than the size of a finger. Furthermore, finger stop protrusions are provided on both sides of the connection between the tail surface and the pull strap, so that the finger gap and the finger-penetrating gap between the finger stop protrusions are located on both sides of the middle of the pull strap. When the user pulls the pull strap to release the buckle, their finger can easily pass through the larger finger gap and hook the middle of the pull strap. Then, when the middle of the pull strap is pulled in any direction away from the female end, the pull strap first bends outwards towards the tail. During the outward bending of the pull strap towards the tail, the upper part of the pull strap is always under tension, which drives the buckle to rotate and release the buckle at the front of the buckle. The pull strap used for releasing the male power terminal is not designed with a specified direction of tension. As long as the tension is in the direction away from the female end, the buckle can be released without resistance. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a side view of the pull-out power supply male terminal of the present invention; Figure 2 This is a schematic diagram of the structure of the pull-out power supply male terminal of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the structure of the pull-out power supply male terminal of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the pull-out power male terminal of the present invention being inserted into the female terminal; Figure 5 This is a schematic diagram of the structure of the pull-out power supply male terminal of the present invention. Figure 3 ; Figure 6 This is a comparative schematic diagram showing the straight pull strap of the pullable power male terminal of the present invention bent outwards from the tail face and the already bent pull strap bent outwards from the tail face. In the picture: Male end body 100, top surface 110, hinge seat 111, hinge rod 112, tail surface 120, top tail ridge 130, finger stop protrusion 140, edge protrusion ring 150, fastening groove 160, pull strap sleeve rod 170, fastening piece 200, fastening piece tail handle 210, pull strap sleeve rod 211, fastening part 220, fastening through hole 221, spring 300, pull strap 400, finger stop gap 510, finger through gap 520. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments implemented by those skilled in the art without creative effort are within the protection scope of the present invention. Example

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a pullable male power supply terminal, comprising: a male terminal body 100, wherein a fastener 200 is hinged to its top surface 110; the rear part of the fastener 200 bends upward toward the top surface 110 to form a fastener tail 210, and a spring 300 provided at the hinge point between the male terminal body 100 and the fastener 200 causes the fastener tail 210 to be raised, so that the vertical downward projection of the tail end of the fastener tail 210 is on the top surface 110, so that when the pull strap 400, which is connected at both ends to the tail end of the fastener tail 210 and the tail surface 120 of the male terminal body 100 respectively, is pulled toward the tail surface 120 due to the raising of the fastener tail 210, the top surface 110 and the tail surface 120... The finger-blocking gap 510 between the top tail ridge 130 and the pull strap 400 at the junction is smaller than the size of a finger; finger-blocking protrusions 140 are provided on both sides of the connection between the tail surface 120 and the pull strap 400, so that the finger-penetrating gap 520 between the finger-blocking gap 510 and the finger-blocking protrusion 140 is located on both sides of the middle part of the pull strap 400, so as to guide the finger to hook the middle part of the pull strap 400 through the finger-penetrating gap 520. When the middle part of the pull strap 400 is hooked in any direction away from the female end, the upper part of the pull strap 400 is always under tension during the process of bending the pull strap 400 outward from the tail surface 120, which drives the buckle 200 to rotate and causes the buckle 220 at the front of the buckle 200 to disengage.

[0021] In this embodiment, the finger size is based on the diameter of an adult's index finger.

[0022] The pull strap 400 of the pullable male power terminal is connected at both ends to the tail end of the latch handle 210 and the tail surface 120 of the male terminal body 100, respectively. After the latch handle 210 is lifted by the spring 300, the vertical downward projection of the tail end of the latch handle 210 is on the top surface 110 of the male terminal body 100. When the pull strap 400 is pulled towards the tail surface 120 due to the lifting of the latch handle 210, the finger-blocking gap 510 between the top tail ridge 130 at the junction of the top surface 110 and the tail surface 120 and the pull strap 400 is smaller than the size of a finger. Furthermore, finger-blocking protrusions 140 are provided on both sides of the connection between the tail surface 120 and the pull strap 400, thereby reducing the finger-penetrating gap 520 between the finger-blocking gap 510 and the finger-blocking protrusions 140. Located on both sides of the middle of the pull strap 400, when the user hooks the pull strap 400 to release the buckle, their fingers can easily pass through the larger finger gap 520 and hook the middle of the pull strap 400. Then, when the middle of the pull strap 400 is hooked in any direction away from the female end, the pull strap 400 first bends outward towards the tail face 120. During the process of bending outward towards the tail face 120, the upper part of the pull strap 400 is always under tension, which drives the buckle 200 to rotate and release the buckle of the front fastening part 220 of the buckle 200. The pull strap 400 used for releasing the male power terminal is not designed with a specified direction of tension. As long as the tension is in the direction away from the female end, the buckle can be released without resistance.

[0023] like Figure 1 As shown, the upper part of the tail surface 120 of the male end body 100 tapers towards the insertion end of the male end body 100, as... Figure 2 As shown in Figure 5, the two finger-stopping protrusions 140 are located at the edge of the tail face 120 and gradually decrease upward until they stop decreasing when they reach the middle sides of the pull belt 400, and continue to extend to form an edge protrusion 150 that is the same height as the lowest finger-stopping protrusion 140 and meets at the top tail ridge 130.

[0024] This is a reference. Figure 1 When the pull strap 400 is pulled towards the tail face 120 due to the buckle tail shank 210 being raised, it is somewhat straight. For comparison, as... Figure 6 The upper part of the dotted line portion does not have a tail surface that tapers towards the insertion end of the male end body. Figure 6 To create a finger gap that is easily hooked by the user's fingers, the dotted section of the pull strap must bend slightly outwards towards the tail. If the pull strap is already slightly curved, then it can only be hooked at the middle. Figure 6The pull strap in the dotted line section needs to be hooked horizontally backwards at its center to create a noticeable transition from a slight bend to a more pronounced outward bend towards the tail end. This ensures the upper part of the pull strap experiences a pulling force towards its center. If the pull strap is hooked at its center and pulled diagonally upwards, the outward bend is less pronounced and fails to cause the latch to rotate. The pullable male power terminal, through the formation of a slightly straight pull strap 400, when hooked at its center and pulled in any direction away from the female end, requires reference... Figure 6 The pull strap 400 always first bends outwards towards the tail face 120. During this process, the upper part of the pull strap 400 is pulled towards the middle of the pull strap 400. This pulling force causes the fastener 200 to rotate, disengaging the fastening part 220 at the front of the fastener 200. Therefore, the pull strap 400 used for disengaging the male power terminal of the pullable device no longer has any requirements regarding the direction of the pulling force; as long as the pulling force is directed away from the female end, disengagement can be completed without resistance.

[0025] To ensure that the finger does not slip after hooking the middle of the pull strap 400, causing the finger to slide to the upper or lower end of the pull strap 400, the part of the middle of the pull strap 400 that contacts the finger is rough.

[0026] In this embodiment, the pull belt 400 is a cloth belt, which has a rough surface and is easy to obtain.

[0027] like Figure 3 and Figure 5 As shown, the top surface 110 of the male end body 100 is provided with a pair of hinge seats 111; the middle part of the fastener 200 is hinged between the two hinge seats 111 by a hinge rod 112.

[0028] The latching part 220 of the pull-out power supply male terminal is latched to the latching protrusion on the female terminal in the following manner. For example... Figure 3 and Figure 4 As shown, The front part of the fastener 200 has a fastening through hole 221, and the fastening through hole 221 and the surrounding frame form the fastening part 220; The upper part of the insertion end of the male end body 100 has a fastening groove 160 that extends to the fastening through hole 221. When the insertion end of the male end body 100 is inserted into the female end, the fastening protrusion on the female end enters the fastening groove 160, and the fastening part 220 advances against the inclined front of the fastening protrusion until it fastens the fastening protrusion. Figure 4The female end is located on the right side. The top surface of the female end has a snap-fit ​​protrusion, which is a ramp. When the insertion end of the male end body 100 is inserted into the female end, the lower edge of the snap-fit ​​part 220 first contacts the snap-fit ​​protrusion. Then, as it is inserted, the snap-fit ​​piece 200 rotates, and the lower edge of the snap-fit ​​part 220 rises along the snap-fit ​​protrusion. The snap-fit ​​groove 160 is used to make the lower edge of the snap-fit ​​part 220 continue to rise along the snap-fit ​​protrusion until the lower edge of the snap-fit ​​part 220 passes over the snap-fit ​​protrusion. At this time, under the action of the spring 300, the snap-fit ​​piece 200 rotates back, and the snap-fit ​​is completed.

[0029] In this embodiment, as Figure 2 and Figure 5 As shown, the spring 300 is a torsion spring, which is sleeved on the hinge rod 112.

[0030] In this embodiment, as Figure 4 and Figure 5 As shown, the end of the buckle tail handle 210 is provided with an upper pull strap sleeve 211; the tail surface 120 of the male end body 100 is provided with a lower pull strap sleeve 170; the head of the pull strap 400 is located at the lower pull strap sleeve 170, and the tail of the strap passes around the upper pull strap sleeve 211 and extends to the lower pull strap sleeve 170 and engages with the head of the strap.

[0031] In summary, the pull strap 400 of the pullable male power terminal is connected at both ends to the tail end of the latch handle 210 and the tail surface 120 of the male terminal body 100, respectively. After the latch handle 210 is lifted by the spring 300, the vertical downward projection of the tail end of the latch handle 210 is on the top surface 110 of the male terminal body 100. When the pull strap 400 is pulled towards the tail surface 120 due to the lifting of the latch handle 210, the top tail ridge 130 at the junction of the top surface 110 and the tail surface 120 and the finger-blocking gap 510 of the pull strap 400 are smaller than the size of a finger. Furthermore, finger-blocking protrusions 140 are provided on both sides of the connection between the tail surface 120 and the pull strap 400, thereby reducing the finger-penetrating gap 510 between the finger-blocking gap 510 and the finger-blocking protrusions 140. Located on both sides of the middle of the pull strap 400, when the user hooks the pull strap 400 to release it, their fingers can easily pass through the larger finger gap 520 and hook the middle of the pull strap 400. Then, when the middle of the pull strap 400 is hooked in any direction away from the female end, the pull strap 400 first bends outward towards the tail face 120. During the process of bending outward towards the tail face 120, the upper part of the pull strap 400 is always under tension, which drives the buckle 200 to rotate and release the buckle of the front fastening part 220 of the buckle 200. The pull strap 400 used for releasing the male power terminal is not designed with a specified direction of tension. As long as the tension is in the direction away from the female end, the release can be completed without resistance.

[0032] In the embodiments provided in this application, it should be understood that the disclosed systems and devices can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of the mechanism is only a logical functional division, and there may be other division methods in actual implementation. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A pull-out male power terminal, characterized in that, include: The male end body (100) has a fastener (200) hinged to its top surface (110); The rear part of the buckle (200) bends upward toward the top surface (110) to form a buckle tail handle (210). The spring (300) provided at the hinge of the male end body (100) and the buckle (200) causes the buckle tail handle (210) to be raised. The vertical downward projection of the tail end of the buckle tail handle (210) is on the top surface (110). When the pull strap (400) connected to the tail end of the buckle tail handle (210) and the tail surface (120) of the male end body (100) is pulled toward the tail surface (120) due to the buckle tail handle (210) being raised, the finger-blocking gap (510) of the top tail ridge (130) at the junction of the top surface (110) and the tail surface (120) and the pull strap (400) is smaller than the finger size. The tail face (120) and the connection part of the pull strap (400) are provided with finger-blocking protrusions (140) on both sides, so that the finger-blocking gap (510) and the finger-passing gap (520) between the finger-blocking protrusions (140) are located on both sides of the middle part of the pull strap (400), so as to guide the fingers to hook the middle part of the pull strap (400) through the finger-passing gap (520). When the middle part of the pull strap (400) is hooked in any direction away from the female end, the upper part of the pull strap (400) is always under tension during the process of bending the pull strap (400) to the outside of the tail face (120), which drives the buckle (200) to rotate and causes the buckle part (220) at the front of the buckle (200) to disengage. The upper part of the tail face (120) of the male end body (100) tapers toward the insertion end of the male end body (100), and the two finger-stopping protrusions (140) are located at the edge of the tail face (120) and gradually decrease upward until they stop decreasing when they reach the middle sides of the pull strap (400), and continue to extend to form an edge protrusion ring (150) that is the same height as the lowest finger-stopping protrusion (140) and meets at the top tail ridge (130). The end of the buckle tail handle (210) is provided with an upper pull strap sleeve (211). The male end body (100) is provided with a pull-down strap rod (170) on its tail surface (120). The head of the pull strap (400) is located at the lower pull strap sleeve (170), and the tail of the strap passes over the upper pull strap sleeve (211) and extends to the lower pull strap sleeve (170) and engages with the head of the strap.

2. The pull-out power male terminal according to claim 1, characterized in that, The middle part of the pull strap (400) that contacts the finger has a rough surface.

3. The pull-out power male terminal according to claim 2, characterized in that, The pull belt (400) is a fabric belt.

4. The pull-out power male terminal according to claim 2, characterized in that, The top surface (110) of the male end body (100) is provided with a pair of hinge seats (111). The middle part of the fastener (200) is hinged between two hinge seats (111) by a hinge rod (112).

5. The pull-out power male terminal according to claim 4, characterized in that, The front part of the fastener (200) has a fastening through hole (221), and the fastening through hole (221) and the surrounding frame form the fastening part (220). The upper part of the insertion end of the male end body (100) has a fastening groove (160) that extends to the fastening through hole (221) so that when the insertion end of the male end body (100) is inserted into the female end, the fastening protrusion on the female end enters the fastening groove (160) and the fastening part (220) advances against the inclined front of the fastening protrusion until it fastens the fastening protrusion.

6. The pull-out power male terminal according to claim 4, characterized in that, The spring (300) is a torsion spring, which is sleeved on the hinge rod (112).

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