Self-shorting connector

Abstract

The present invention relates to a self-shorting connector that can solve the problem of multiple parts and complex structure in the prior art self-shorting connectors. The self-shorting connector includes a housing; contacts arranged in pairs within the housing; a shorting link installed within the housing and located between two contacts in a contact pair; the shorting link includes a first end and a second end, wherein: the first end contacts one of the contacts in the contact pair, the second end is a bent elastic arm structure that elastically abuts the other contact; the second end and the abutting contact form a flared structure on the side facing the plugging direction, so that when in use, an insulator of an adapter connector can be inserted to insulate the second end of the shorting link from the contact.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a self-short-circuiting connector. Background Art

[0002] Self-shorting connectors are used in special applications to enhance system stability through their self-shorting function. Compared to conventional electrical connectors, self-shorting connectors offer the ability to both short-circuit and release short-circuit functions, depending on the intended use. This means that when the mated connectors are separated, they enter a self-shorting state. When the connectors are reconnected, the short-circuit state is automatically released, restoring the connection to its normal state.

[0003] For example, a self-shorting connector disclosed in a patent document with authorization announcement number CN208674555U and authorization announcement date 2019.03.29 includes a socket body, in which a plurality of pins are arranged, with each pair of two pins forming a pair. A shorting block is arranged between the pair of pins, and the shorting block corresponds only to one pair of pins. A spring is provided in the socket body to elastically support the shorting block. The spring is in a pre-compressed state and can press the shorting block tightly between the two pins to short-circuit the two pins. The connector also includes a plug, which is provided with a push rod for pushing the shorting block open after the plug is inserted into the socket body.

[0004] In this self-shorting connector, a shorting block, supported by a spring, presses against the paired pins, short-circuiting them. Pushed by a push rod, the shorting block retreats, disengaging from the pins and eliminating electrical contact between the two pins. The spring deforms to position the shorting block, which then conducts the pins, while the shorting block itself conducts the two pins. This connector achieves its self-shorting function by combining a spring and a shorting block, but some issues remain: The placement of the spring and pressure block within the housing increases the number of components, resulting in high costs and a complex assembly structure. Summary of the Invention

[0005] The object of the present invention is to provide a self-shorting connector, which can solve the problem of the self-shorting connector in the prior art having many parts and a complex structure.

[0006] To achieve the above objectives, the self-shorting connector of the present invention adopts the following technical solutions:

[0007] Self-shorting connector, comprising:

[0008] case;

[0009] Contacts are arranged in pairs in the housing;

[0010] The shorting piece is installed in the housing and is located between the two contacts in the center of the contact pair;

[0011] The shorting link includes a first end and a second end, wherein:

[0012] The first end contacts one of the contact members in the contact member pair, and the second end is a bent elastic arm structure that elastically abuts against the other contact member;

[0013] The second end and the contact piece abutting against each other form a flared structure on the side facing the plugging direction, so that the insulator of the adapter connector can be inserted when in use to insulate and isolate the second end of the shorting piece from the contact piece.

[0014] Its beneficial effect is that the short circuit piece arranged between the two contacts, its first end and the second end contact with the contact piece on the corresponding side to conduct the two contacts, thereby realizing a short circuit between the two contacts when the connector is not plugged in. At the second end, the elastic arm structure abuts against the contact piece on the corresponding side to realize the conduction of the circuit, and the elastic arm structure itself can elastically deform to adapt to the different distances between the contacts. When plugging in or unplugging with the adapter connector, the insulator on the adapter connector can short-circuit or disconnect the two contacts by inserting or withdrawing the elastic arm structure and the contact piece. The use of a short circuit piece can realize the self-short circuit function of the connector, and the structure is simple. The parts of the short circuit piece at both ends that abut against the contact piece on the corresponding side are integrally formed with the short circuit piece. When assembling the short circuit piece, only the short circuit piece as a whole can be operated, and the assembly structure is relatively simple.

[0015] Furthermore, the portions at both ends of the shorting piece that are used to contact the corresponding contact pieces are staggered in the plugging direction.

[0016] Its beneficial effect is that the parts where the two ends of the shorting piece contact the corresponding contact pieces are staggered in the plug-in direction, so that the second end can be staggered with the first end in the plug-in direction when swinging, so that the second end has enough movable space to abut on the corresponding contact piece, ensuring the stability and reliability of the abutment between the second end and the contact piece.

[0017] Furthermore, the first end is a spring arm structure formed by bending, and elastically abuts against the contact member in contact. The bending directions of the first end and the second end are opposite, so that the shorting piece is N-shaped.

[0018] Its beneficial effects are as follows: the first end and the second end are both elastic arm structures, and the bending directions are opposite. When the shorting piece is installed, the shorting piece can use the elastic arm structures at both ends to abut on the corresponding contact pieces to achieve short-circuiting of the two contact pieces. There is no need to fix the shorting piece and the contact pieces on the corresponding sides, and the elastic deformation of the elastic arm structure itself can ensure reliable abutment during insertion. The structure is simple and easy to assemble.

[0019] Furthermore, the second end is bent away from the plugging direction.

[0020] The beneficial effect is that the second end of the shorting piece faces away from the plugging direction, and the bent structure of the second end itself is used to easily form a flared structure, and the solution is simple and easy to implement.

[0021] Furthermore, the overhang length of the second end is greater than the overhang length of the first end, so that the second end can form a long elastic arm that can easily swing, and the first end forms a short elastic arm that provides positive pressure.

[0022] The advantages are: the longer second-end elastic arm structure has a longer lever arm and a larger swing angle when swinging, requiring less power to rotate, making it suitable for scenarios with frequent swinging and bending. The shorter first-end elastic arm structure has a shorter lever arm when swinging, making it less prone to swinging, and exerts a greater positive pressure on the contact, ensuring the stability and reliability of the contact between the shorting piece and the corresponding contact.

[0023] Furthermore, the shell is provided with a short-circuit installation opening at a position between the two contacts corresponding to the contact pair. The short-circuit can be installed into the shell from the short-circuit installation opening along the plug-in and pull-out direction. A forced installation hook or a forced installation protrusion is provided on the first end of the short-circuit, and a corresponding card groove is provided on the shell to block the forced installation hook or the forced installation protrusion in the installation direction of the short-circuit.

[0024] The beneficial effect is that a forced hook or a forced protrusion is provided on the short-circuit piece, and the forced hook or the forced protrusion cooperates with the card slot to limit the movement of the short-circuit piece in the plug-in and pull-out direction, thereby determining the relative position of the short-circuit piece and the shell. No other fasteners are required to connect the short-circuit piece and the shell, and the assembly structure is simple.

[0025] Furthermore, the shell is provided with a short-circuit installation opening at a position between the two contacts corresponding to the contact pair. The short-circuit can be installed into the shell from the short-circuit installation opening along the plug-in and pull-out direction. A forced installation hook or a forced installation protrusion is provided on the first end of the short-circuit, and a corresponding card groove is provided on the shell to block the forced installation hook or the forced installation protrusion in the installation direction of the short-circuit.

[0026] The beneficial effect is that a forced hook or a forced protrusion is provided on the short-circuit piece, and the forced hook or the forced protrusion cooperates with the card slot to limit the movement of the short-circuit piece in the plug-in and pull-out direction, thereby determining the relative position of the short-circuit piece and the shell. No other fasteners are required to connect the short-circuit piece and the shell, and the assembly structure is simple.

[0027] Furthermore, the first end includes three parts punched out in the width direction of the sheet, the middle part elastically abuts against the corresponding contact piece, and the forced hooks or forced protrusions are arranged on the two parts on both sides, and the two parts on both sides protrude in the width direction of the short-circuit sheet.

[0028] Its beneficial effect is that: among the three parts formed by punching, the middle part elastically abuts against the contact piece, and the two parts located on both sides of the middle part are used to set strong hooks or strong protrusions. On the one hand, the strong hooks or strong protrusions are symmetrically arranged on both sides of the middle part, which is more reliable when connected with the shell; on the other hand, the position of the middle part abutting against the contact piece can be determined by the strong hooks or strong protrusions, and the abutment and conduction with the contact piece is more reliable.

[0029] Furthermore, the plug-in ends of the two contacts included in the contact pair are flush, the wiring ends are staggered in the plugging and unplugging direction, the first end of the shorting piece contacts the longer contact, and the contact position is close to the wiring end of the shorter contact.

[0030] The beneficial effect is that the wiring terminals of the two contacts are staggered, so that the cables connected to the two contacts can be staggered in the plugging and unplugging direction, so that the cables can be output from the same side of the short-circuit connector, reducing the space occupied when the cables are connected, and the first end of the short-circuit piece contacts the longer contact piece, and the contact position is close to the wiring terminal of the shorter contact piece. The first end of the short-circuit piece is closer to the wiring terminal of the short-circuit connector, and the space between the two contacts can be used to accommodate the first end of the short-circuit piece. The first end of the short-circuit piece only needs to ensure that it is in contact with and conductive with the contact piece, and there is no requirement for the movable space, which simplifies the structure and facilitates assembly.

[0031] Furthermore, the number of the shorting links is equal to the number of the contact pairs.

[0032] Its beneficial effect is that the number of shorting links is equal to the number of contact pairs, so that one pair of contacts corresponds to one shorting link. During installation, it is only necessary to ensure that each shorting link is installed between the corresponding two contacts to ensure that the self-shorting connector can achieve the self-shorting function. The assembly structure is simple and the technical requirements are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of the assembly structure of the components of the self-shorting connector embodiment 1 of the present invention;

[0034] Figure 2 A partial cross-sectional view of the self-shorting connector of Embodiment 1 of the present invention when plugged into and mated with a matching connector;

[0035] Figure 3 Schematic diagram of the first three-dimensional structure of the shorting link of the self-shorting connector embodiment 1 of the present invention;

[0036] Figure 4 Schematic diagram of a second three-dimensional structure of the shorting link of the self-shorting connector embodiment 1 of the present invention;

[0037] Figure 5Schematic diagram of the shorting link and two contact members of the self-shorting connector embodiment 1 of the present invention;

[0038] In the picture:

[0039] 10-self-shorting connector; 11-connector housing; 12-first contact; 13-second contact; 14-shorting link;

[0040] 141 - sheet body; 142 - first end; 143 - second elastic arm; 144 - strong barb; 145 - first elastic arm;

[0041] 15 - first cable; 16 - second cable; 20 - adapter connector; 21 - adapter housing; 22 - adapter contact. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely intended to represent selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0045] The features and performance of the self-shorting connector of the present invention are further described in detail below with reference to the embodiments.

[0046] Example 1 of the self-shorting connector in the present invention: The self-shorting connector in the present invention is used to connect to the external wiring of the electrical control cabinet and is connected to the adapter connector to realize the transmission of signals between the electrical control cabinet and other equipment. The self-shorting connector includes a shell made of insulating material, and contacts are arranged in pairs inside the shell. A shorting piece is arranged between the two contacts forming a pair, and the shorting piece is used to connect the two contacts. Among them, the shape of the shorting piece can be changed, and it can realize the functions of short-circuiting and releasing the short-circuiting of the contacts according to the requirements of use. The specific structure of the self-shorting connector is now introduced.

[0047] like Figure 1 and Figure 2 As shown, the self-shorting connector 10 includes an elongated connector housing 11 , in which two rows of mounting holes are provided for mounting contacts. Each row of mounting holes extends along the length direction of the connector housing 11 , and the two rows of mounting holes are spaced apart along the width direction of the connector housing 11 .

[0048] The top openings of the two rows of mounting holes are staggered in the height direction of the connector housing 11, with one row higher and the other lower. Adaptively, the contacts installed in the two rows of mounting holes are of different lengths, namely, first contacts 12 and second contacts 13, with the first contacts 12 being longer than the second contacts 13. The first contacts 12 are installed in the longer mounting holes with higher top openings, while the second contacts 13 are installed in the shorter mounting holes with lower top openings.

[0049] The tops of the first and second contacts 12, 13 serve as wiring terminals, while their bottoms serve as plug-in terminals for mating with matching contacts. A first cable 15, 16, is connected to the tops of the first and second contacts 12, 13, respectively. The first contact 12 and the first cable 15 are secured together by screw crimping, while the second contact 13 and the second cable 16 are also secured together by screw crimping. Because the wiring terminals at the tops of the first and second contacts 12, 13 are not at the same height, the first and second cables 15, 16 can be staggered in the height direction of the connector housing 11, enabling connections to be made on the same side of each contact on the short-circuiting connector 10.

[0050] A first contact 12 and a second contact 13 aligned in the width direction of the connector housing 11 constitute a contact pair. Within each contact pair, a shorting link 14 is disposed between the first contact 12 and the second contact 13. This shorting link 14 is capable of short-circuiting the first contact 12 and the second contact 13. For the entire self-shorting connector, each contact pair is equipped with a corresponding shorting link 14, and the number of shorting links 14 is equal to the number of contact pairs.

[0051] The connector housing 11 is provided with a shorting link installation opening between the first contact 12 and the second contact 13. Specifically, an opening is provided on the end face of the connector housing 11 facing the mating connector 20. The shorting link 14 can be installed into the connector housing 11 through the shorting link installation opening along the insertion and removal direction. When the first and second contacts 12, 13 are installed in the housing, the top of the first contact 12 is higher than the top of the second contact 13, and the bottom of the first contact 12 is flush with the bottom of the second contact 13.

[0052] The adapter connector 20 adapted to the self-shorting connector 10 includes an adapter shell 21, which is also in the shape of a long strip. Adapter contacts 22 corresponding to the first contact 12 and the second contact 13 are arranged in the adapter shell 21. The adapter contacts 22 are also arranged in two rows, but the connection terminals of the adapter contacts 22 have two forms, one is a terminal seat and the other is a pin structure.

[0053] like Figure 3 and Figure 4 As shown, the shorting link 14 of the present invention is a sheet metal component including a main body 141. When installed in the connector housing 11, the main body 141 extends along the plugging direction between the contacts of the shorting connector 10 and the mating connector 20. The upper end of the main body 141 is a first end 142. The first end 142 is folded toward the plugging direction, forming a U-shaped bend at the end of the main body 141.

[0054] The first end 142 is punched out to form three sections along its width. The central section is a cantilevered arm extending away from the first contact 12. The cantilevered arm extends in the same direction as the insertion direction. The cantilevered arm is turned outward to form a first elastic arm 145 of the shorting link 14 for mating with the first contact 12. The first elastic arm 145 can elastically deform to abut against the first contact 12. The width of the first end 142 is greater than that of the main body 141, and the two sections on either side protrude in the width direction of the shorting link 14.

[0055] A locking barb 144 is also provided on the first end 142 to control the relative position of the shorting link 14 and the connector housing 11. Four locking barbs 144 are arranged in a group, consisting of two upper and lower locking barbs 144. These two groups of locking barbs 144 are located on two of the three blanked sections of the first end 142, on either side. Specifically, the locking barbs 144 are located on either side of the first spring arm 145 along the contact pair arrangement direction. The downstream end of the locking barbs 144 in the insertion direction serves as an overhang, angled toward the housing wall.

[0056] The second end of the sheet body 141 is folded away from the plugging direction, also forming a U-shaped bend structure. The folded portion of the shorting link 14 forms a second elastic arm 143 in the shorting link 14 for mating with the second contact 13. The second elastic arm 143 can elastically deform to abut against the second contact 13. Because the second elastic arm 143 is folded away from the plugging direction, a flared structure is formed between the second elastic arm 143 and the second contact 13 on the side facing the plugging direction.

[0057] The overhang length of the second end, or second elastic arm 143, is greater than the overhang length of the first elastic arm 145 at the first end 142, forming a structure in which the shorting link 14 has a large elastic arm at one end and a small elastic arm at the other. The longer second elastic arm 143 swings with a long lever arm and a large swing angle, requiring less power to rotate, making it suitable for scenarios with frequent swinging and bending. The shorter first elastic arm 145 has a short lever arm during swinging, making it less prone to swinging and exerting a strong positive pressure on the first contact 12, ensuring stable and reliable contact between the shorting link 14 and the corresponding contact, ensuring that the shorting link 14 is always in contact with the first contact 12 after installation.

[0058] When assembling the self-shorting connector 10, first install the first contact 12 and the second contact 13 into the corresponding mounting holes, and then install the shorting piece 14 into the connector housing 11 from the lower end of the connector housing 11. A mounting groove corresponding to the shorting piece 14 is provided in the housing and located between the first contact 12 and the second contact 13 in the center of the contact pair.

[0059] Because the first elastic arm 145 and the second elastic arm 143 as elastic arm structures are located at the two ends of the shorting piece 14 respectively, and the folding directions are opposite, and the first elastic arm 145 and the second elastic arm 143 are staggered in the plugging direction, the cross section of the shorting piece 14 is "N" shaped. When installing, the first elastic arm 145 enters the installation slot first, and when the shorting piece 14 moves along the direction of the installation slot, the forced installation hook 144 on the shorting piece 14 is pressed against the installation slot wall to Figure 5 The direction indicated by the middle arrow is pressed toward the first end 142 , so that the forced installation hook 144 is in a retracted posture, which does not affect the forward movement of the shorting piece 14 .

[0060] After the shorting link 14 moves to its final position, the area where the first end 142 meets the main body 141 of the link will press against the bottom of the mounting slot, restricting the movement of the shorting link 14 in the removal direction. The forced hooks 144 on the shorting link 14 will snap into corresponding slots on the wall of the mounting slot. At this point, the shorting link 14 is restricted by the forced hooks 144 and cannot be withdrawn from the mounting slot in the insertion direction. The first and second elastic arms 145, 143 on the shorting link 14 elastically press against the surfaces of the corresponding contacts, effectively short-circuiting the two contacts when the self-shorting connector 10 is not mated with the adapter connector 20.

[0061] In order to realize the function of releasing the short circuit of the contacts when the connectors are plugged in, an insulator is provided on the adapter housing 21 of the adapter connector 20. When the self-shorting connector 10 and the adapter connector 20 are plugged into each other, the insulator can squeeze into the flared opening formed by the second elastic arm 143 and the second contact 13, and as the two connectors continue to approach each other, the second elastic arm 143 and the second contact 13 are isolated and insulated, thereby releasing the short circuit between the first contact 12 and the second contact 13.

[0062] The self-shorting connector in the present invention is not limited to the content provided in the above embodiment 1, and also includes the solutions provided in the following embodiments:

[0063] Self-shorting connector embodiment 2 of the present invention differs from the above embodiments in that the first end of the shorting link in this embodiment directly abuts the contact after installation. A slot is provided in the housing for securing the first end of the link. Once the first end is engaged within the slot, it directly abuts the surface of the contact. Alternatively, during connector assembly, the first end of the shorting link is directly secured to the contact by snapping or pressing with a fastener.

[0064] Embodiment 3 of the self-shorting connector in the present invention: The difference from the above embodiments is that in this embodiment, the two ends of the shorting link for contacting the corresponding two contact pieces are arranged on both sides of the shorting link in a direction perpendicular to the plug-in direction. If the connector is plugged in along the up and down direction, then the two ends of the shorting link are arranged on both sides of the shorting link body in the horizontal direction.

[0065] Self-shorting connector embodiment 4 of the present invention differs from the previous embodiments in that both the first and second ends of the shorting link in this embodiment employ spring-loaded structures. The spring-loaded structure at the second end bends toward the plugging direction, while the spring-loaded structure at the first end bends away from the plugging direction. To ensure smooth insertion of the insulator in the mating connector between the second end and the contact, the distal end of the spring-loaded structure at the second end extends obliquely toward the mating connector, forming a flared structure.

[0066] Embodiment 5 of the self-shorting connector in the present invention: The difference from the above embodiments is that in this embodiment, the first and second ends of the shorting piece both adopt an elastic arm structure, and the overhang length of the elastic arm structure at the second end is equal to the overhang length of the elastic arm structure at the first end, or the overhang length of the elastic arm structure at the second end is less than the overhang length of the elastic arm structure at the first end.

[0067] Embodiment 6 of the self-shorting connector in the present invention: The difference from the above embodiments is that, in this embodiment, a forced mounting protrusion is provided on the first end of the shorting link, and a corresponding card slot is provided on the shell. The forced mounting protrusion and the card slot can play a limiting role when the shorting link moves along the plugging and unplugging direction, so as to determine the position of the shorting link relative to the shell; or the shell adopts a petal structure, and a card slot for fixing the shorting link is provided in the shell. The operator places the shorting link into the card slot of one petal of the shell, and then mates the petals that make up the shell to form a complete shell. The shorting link is fixed in the shell, and only the second end can elastically abut against the corresponding side contact piece.

[0068] Self-shorting connector embodiment 7 of the present invention differs from the previous embodiments in that the second end of this embodiment is formed by bending the end of the shorting link, rather than punching it out into three parts. Instead, the second end as a whole elastically abuts against the corresponding contact. The forced barb and forced protrusion are still located on the side of the second end facing away from the corresponding contact to engage with the retaining groove in the housing, or the forced barb and forced protrusion are located on the main body of the shorting link.

[0069] Self-shorting connector embodiment 8 of the present invention differs from the previous embodiments in that the first and second contacts in the contact pair are of equal length, and the connection and insertion ends are aligned in the insertion direction. The first and second ends of the shorting link can abut against the first and second contacts, respectively, or the first end can contact the second contact while the second end contacts the first contact.

[0070] Embodiment 9 of the self-shorting connector of the present invention: The difference from the above embodiments is that, in the self-shorting connector of this embodiment, the number of contact pairs is greater than the number of shorting plates, that is, some of the contact pairs are not arranged with shorting plates, or some of the contact pairs are arranged with conductors of other structures to realize the shorting function.

[0071] The specific implementation methods described above further illustrate the invention objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Self-shorting connector, including: case; Contacts are arranged in pairs in the housing; It is characterized by further comprising: The shorting piece is installed in the housing and is located between the two contacts in the center of the contact pair; The shorting link includes a first end and a second end, wherein: The first end contacts one of the contact members in the contact member pair, and the second end is a bent elastic arm structure that elastically abuts against the other contact member; The first end is a U-shaped bent structure with an opening facing the plugging direction, and the second end is a U-shaped bent structure with an opening facing away from the plugging direction. One arm of the U-shaped bent structure at the first end is fixedly abutted against the surface of the first contact piece, and the other arm of the U-shaped structure at the first end is integrally formed with one arm of the U-shaped bent structure at the second end to form an intermediate elastic arm. The other arm of the U-shaped bent structure at the second end elastically abuts against the second contact piece, and an insertion port for the insulating sheet is formed between the other arm of the U-shaped bent structure at the second end and the second contact piece. The second end and the abutting contact piece form a flared structure on the side facing the plugging direction to provide an adapter for the connector when in use. The insulator is inserted to insulate the second end of the shorting link from the contact piece; the shell is provided with a shorting link installation port at a position between the two contact pieces corresponding to the contact piece pair, and the shorting link can be installed into the shell from the shorting link installation port along the plugging and unplugging direction, and a forced installation hook or a forced installation protrusion is provided on the first end of the shorting link, and a corresponding card slot is provided on the shell for blocking the forced installation hook or the forced installation protrusion in the installation direction of the shorting link; the first end includes three parts punched out in the width direction of the sheet body, the middle part elastically abuts against the corresponding contact piece, the forced installation hook or the forced installation protrusion is provided on the two parts on both sides, and the two parts on both sides protrude in the width direction of the shorting link.

2. The self-shorting connector according to claim 1, wherein: The portions at both ends of the shorting link for contacting corresponding contact pieces are staggered in the plugging direction.

3. The self-shorting connector according to claim 1 or 2, characterized in that: The first end is a spring arm structure formed by bending and elastically abuts against the contact member in contact. The bending directions of the first end and the second end are opposite, so that the shorting piece is in an N shape.

4. The self-shorting connector according to claim 3, wherein: The second end is bent away from the plugging direction.

5. The self-shorting connector according to claim 3, wherein: The overhang length of the second end is greater than that of the first end, so that the second end can form a long elastic arm that is easy to swing, and the first end forms a short elastic arm that provides positive pressure.

6. The self-shorting connector according to claim 2, wherein: The plugging ends of the two contacts included in the contact pair are flush, the wiring ends are staggered in the plugging and unplugging direction, the first end of the shorting piece contacts the longer contact, and the contact position is close to the wiring end of the shorter contact.

7. The self-shorting connector according to claim 1 or 2, characterized in that: The number of shorting links is equal to the number of contact pairs.

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