Board end connector with locking structure

Abstract

The utility model relates to the technical field of electric connectors, in particular to a board end connector with a locking structure, which comprises a plugging shell, a locking element, a fixed seat and an electric terminal, the plugging shell comprises a fixed panel, a plugging head and a fixed cavity, the fixed panel is used for separating the plugging head from the fixed cavity, the plugging head is provided with an insertion port and an insertion cavity, and the locking element is arranged in the insertion port. The connecting plug is provided with an end face groove close to the fixed panel and lateral sliding grooves located in the two sides of the end face groove, and elastic elements are arranged at the positions, close to the lateral sliding grooves, of the end face groove. The locking element comprises a locking beam and sliding pins arranged on the two sides of the locking beam, locking blocks are arranged on the outer sides of the sliding pins, the sliding pins are arranged on the lateral sliding grooves in a sliding mode, and one end of the elastic element abuts against the locking beam; the fixing seat comprises an installation fixing part and an insertion fixing part. According to the utility model, the locking element is used for locking and fixing after the connector is plugged, and the electric connection terminal and the fixed seat are matched to realize stable conductive plugging.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a board-end connector with a locking structure. Background Art

[0002] Connectors are a component that electronic engineers often come into contact with. Their function is to build a bridge of communication between blocked or isolated circuits in a circuit, so that current can flow and the circuit can achieve its intended function. Energy storage connectors are connectors specifically used to connect and transmit electrical energy. The main function of energy storage connectors is to provide current transmission, voltage distribution, and partial protection for system battery packs. It needs to withstand high voltage and high current, and also have sufficiently low contact resistance, so as to ensure stable current transmission and low energy consumption, and improve the efficiency of the entire energy storage system.

[0003] In the prior art, the Chinese patent application number is: CN202222819667.7, which discloses a riveted wire socket connector, the purpose of which is to solve the problems of inconvenient wiring and poor stability of existing connectors. It uses riveted wire connection, stable wiring, and a plug-matching fixing groove is provided to fix the power terminal, so that the connector is plugged in stably. However, in actual use, since there is no structure for maintaining the lock in the structural design, it is easy to cause the mutually plugged connectors to fall off when affected by external forces, affecting the use of the connectors. Utility Model Content

[0004] To solve the above problems, the utility model provides a solution to the problem that the existing connector is easy to loosen and fall off after plugging. A locking element is used to lock and fix the connector after plugging, and the electrical terminal and the fixing seat cooperate with each other to conduct and plug stably to form a board-end connector with a locking structure.

[0005] The technical solution adopted by the utility model is: a board-end connector with a locking structure, including a plug-in shell, a locking element, a fixing seat and an electrical terminal, the plug-in shell includes a fixing panel, a plug-in connector and a fixing cavity, the fixing panel is used to separate the plug-in connector and the fixing cavity, the plug-in connector is provided with an insertion port and a plug-in cavity, one end of the insertion port is connected to the plug-in cavity, the plug-in cavity is provided with a plurality of plug-in columns, one end of the plug-in column is connected to the fixing cavity, the plug-in connector is provided with an end face groove and lateral sliding grooves on both sides of the end face groove near the fixing panel, and the end face groove is provided with an elastic element near the lateral sliding groove Part; the locking element includes a locking beam and sliding pins arranged on both sides of the locking beam, a locking block is arranged on the outer side of the sliding pin, the sliding pin can be slidably arranged on the lateral sliding groove, and one end of the elastic element is pressed toward the locking beam; the fixing seat includes an installation fixing part and a plug-in fixing part, the plug-in fixing part is provided with an electrical connection fixing sleeve, the installation fixing part is arranged in the fixing cavity, and the electrical connection fixing sleeve extends toward the plug-in column; the power terminal includes a wiring part, a fixed installation part and a plug-in part, the fixed installation part is installed in the electrical connection fixing sleeve, and one end of the plug-in part extends to the inside of the plug-in column.

[0006] A further improvement to the above solution is that the fixed panel is provided with an installation sealing groove on the periphery of the fixed cavity, and a first sealing ring is installed on the installation sealing groove. The first sealing ring is used to seal the periphery of the fixed cavity when the fixed panel is installed.

[0007] A further improvement to the above solution is that a plug-in sealing groove is provided on the outer periphery of the plug connector, and a second sealing ring is installed in the plug-in sealing groove, and the second sealing ring is used to seal the outer periphery of the plug connector when the plug connector is plugged in.

[0008] A further improvement to the above solution is that the size of the insertion port is larger than the size of the plug-in cavity, and an insertion stop step is provided between the plug-in cavity and the insertion port.

[0009] A further improvement to the above solution is that a plug-in guide bar and a plug-in positioning bar are provided in the plug-in cavity, and both the plug-in guide bar and the plug-in positioning bar protrude toward the plug-in cavity.

[0010] A further improvement to the above scheme is that a limiting spring piece is provided on the fixed panel above the locking beam, and the limiting spring piece includes an embedded part and a spring piece part, one end of the embedded part is embedded in the fixed panel, and the locking beam is provided with a positioning groove toward the spring piece part, one end of the limiting spring piece is connected to the embedded part, and the other end faces the locking beam, so as to limit the locking beam when the elastic element is pressed.

[0011] A further improvement to the above scheme is that sliding baffles are provided on both sides of the lateral slide groove, and sliding steps are provided on both sides of the sliding pin, and the sliding steps are used to cooperate with the sliding baffles to enable the sliding pin to keep sliding in the lateral slide groove.

[0012] A further improvement to the above scheme is that a sliding limit slot is provided in the lateral sliding slot, the sliding pin is provided with a sliding elastic buckle, an elastic slot is provided on the periphery of the sliding elastic buckle, the sliding elastic buckle can be slidably set in the sliding limit slot, one end of the sliding limit slot is provided with a limiting platform, and the limiting platform is used for limiting the sliding elastic buckle.

[0013] A further improvement to the above scheme is that one side of the locking beam can be sunk into the end face groove, elastic grooves are provided on both sides of the end face groove, positioning columns are provided in the elastic grooves, and a positioning sleeve is provided on the locking beam facing the positioning column, and the elastic element is a spring and is provided between the positioning column and the positioning sleeve.

[0014] A further improvement to the above solution is that the installation and fixing portion is provided with a wiring groove, the wiring portion is arranged in the wiring groove, and the wiring groove is used for wiring the wiring portion.

[0015] A further improvement to the above scheme is that the power connection fixing sleeve is provided with an opening and closing clamping portion, the outer diameter of the opening and closing clamping portion is circumferentially evenly distributed with multiple elastic clamping grooves for clamping and fixing the fixed mounting portion, and the fixed mounting portion is provided with a clamping groove for clamping and fixing the opening and closing clamping portion.

[0016] A further improvement to the above solution is that fixing buckles are provided on both sides of the plug-in fixing portion, and a fixing slot is provided in the fixing cavity, and the fixing buckles are used to cooperate with the fixing slot to fix the plug-in fixing portion in the fixing cavity.

[0017] A further improvement to the above solution is that the plug-in portion is provided with a mating hole, and the mating hole is provided with a contact ring, which is a conductive contact ring for generating contact resistance when the connectors are mated.

[0018] The beneficial effects of the utility model are:

[0019] Compared with the existing connectors, the utility model is provided with an end face groove and a lateral sliding groove on the plug connector of the plug housing to match the locking beam and the sliding pin of the locking element, and under the action of the elastic element, the sliding pin of the locking element slides on the lateral sliding groove, and is actively locked when plugged with the connector to ensure the stability of the connector after plugging. The problem that the existing connector is easy to loosen and fall off after plugging is solved. The locking element is used to lock and fix the connector after plugging, and the electrical terminal and the fixing seat cooperate with each other for conductive plugging and stability.

[0020] The utility model arranges a plug-in column in the plug-in cavity, a fixing seat is fixed in the fixing cavity, and a power connection terminal is fixed through a power connection fixing sleeve, so as to fix the power connection terminal in the power connection fixing groove, thereby ensuring the stability of the terminal inside the plug-in column. In addition, during the plug-in process of the connector, the power connection terminal has good stability and will not shift. The problem of poor stability of the existing power connection terminal during the plug-in process is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of a board-end connector with a locking structure of the utility model;

[0022] Figure 2 for Figure 1 A three-dimensional schematic diagram of a board-end connector with a locking structure from another perspective;

[0023] Figure 3 for Figure 1 A front view of the connecting plug of the board-end connector with a locking structure;

[0024] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0025] Figure 5 for Figure 1 An exploded diagram of a board-end connector with a locking structure;

[0026] Figure 6 for Figure 1 An exploded diagram of the board-end connector with a locking structure from another perspective.

[0027] Description of reference numerals: plug housing 1, fixed panel 11, installation sealing groove 111, first sealing ring 112, limiting spring piece 113, embedded portion 1131, spring piece portion 1132, plug connector 12, insertion port 121, plug cavity 122, plug guide strip 1221, plug positioning strip 1222, plug column 123, plug sealing groove 124, second sealing ring 125, stop plug step 126, fixed cavity 13, fixed card groove 131, end face groove 14, elastic groove 141, positioning column 142, lateral slide groove 15, sliding baffle 151, sliding limiting card groove 152, elastic element 16;

[0028] Locking element 2, locking beam 21, positioning sleeve 211, sliding pin 22, sliding step 221, sliding elastic buckle 222, elastic slot 223, locking block 23;

[0029] The fixing seat 3, the mounting fixing part 31, the wiring slot 311, the plug-in fixing part 32, the fixing buckle 321, the power connection fixing sleeve 33, the opening and closing clamping part 331, and the elastic clamping slot 332;

[0030] The electrical terminal 4 , the wiring portion 41 , the fixed installation portion 42 , the clamping groove 421 , the plug-in portion 43 , the plug-in hole 431 , and the contact ring 432 . DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0034] like Figure 1 to Figure 6As shown, in one embodiment of the utility model, a board-end connector with a locking structure is involved, including a plug housing 1, a locking element 2, a fixing seat 3 and a power terminal 4, the plug housing 1 includes a fixing panel 11, a plug connector 12 and a fixing cavity 13, the fixing panel 11 is used to separate the plug connector 12 and the fixing cavity 13, the plug connector 12 is provided with an insertion port 121 and a plug cavity 122, one end of the insertion port 121 is connected to the plug cavity 122, the plug cavity 122 is provided with a plurality of plug posts 123, one end of the plug posts 123 is connected to the fixing cavity 13, the plug connector 12 is provided with an end face groove 14 and lateral sliding grooves 15 located on both sides of the end face groove 14 near the fixing panel 11, and the end face groove 14 is provided with a spring The locking element 2 comprises a locking beam 21 and sliding pins 22 arranged on both sides of the locking beam 21, a locking block 23 is arranged on the outer side of the sliding pin 22, the sliding pin 22 can be slidably arranged on the lateral slide groove 15, and one end of the elastic element 16 is pressed toward the locking beam 21; the fixing seat 3 comprises an installation fixing portion 31 and a plug-in fixing portion 32, the plug-in fixing portion 32 is provided with an electrical connection fixing sleeve 33, the installation fixing portion 31 is arranged in the fixing cavity 13, and the electrical connection fixing sleeve 33 extends toward the plug-in column 123; the power terminal 4 comprises a wiring portion 41, a fixed installation portion 42 and a plug-in portion 43, the fixed installation portion 42 is installed in the electrical connection fixing sleeve 33, and one end of the plug-in portion 43 extends to the inside of the plug-in column 123. In this embodiment, an end face groove 14 and a lateral sliding groove 15 are provided on the plug connector 12 of the plug housing 1 to match the locking beam 21 and the sliding pin 22 of the locking element 2, and under the action of the elastic element 16, the sliding pin 22 of the locking element 2 slides on the lateral sliding groove 15, and is actively locked when plugged with the connector to ensure the stability of the connector after plugging. The problem that the existing connector is prone to loosening and falling off after plugging is solved. The locking element 2 is used to lock and fix the connector after plugging, and the electrical terminal 4 and the fixing seat 3 cooperate to conduct the plugging stably. Specifically, during the locking process, the locking block 23 is engaged with the locking groove of the target connector to form a locked connection.

[0035] In this embodiment, a plug-in column 123 is arranged in the plug-in cavity 122, the fixing seat 3 is fixed in the fixing cavity 13, and the power terminal 4 is fixed through the power fixing sleeve 33, so as to fix the power terminal 4 in the power fixing groove, thereby ensuring the stability of the terminal inside the plug-in column 123. In addition, during the plug-in process of the connector, the power terminal 4 has good stability and will not shift. The problem of poor stability of the existing power terminal 4 during the plug-in process is solved.

[0036] In the above embodiment, the plug-in column 123 of the plug-in housing 1 is disposed in the plug-in cavity 122, and one end of the plug-in column 123 is connected to the fixing cavity 13 through the plug-in cavity 122 of the plug-in housing 1. This design ensures the stability of the connection. The plug-in column 123 is provided with an electrical connection fixing groove for fixing the electrical terminal 4, thereby ensuring the stability and reliability of the entire connector.

[0037] In the above embodiment, the plug-in fixing portion 32 on the fixing seat 3 is provided with an electrical connection fixing sleeve 33, which extends toward the electrical connection fixing groove. This design enables the plug-in column 123 to cooperate with the electrical connection fixing sleeve 33 to firmly fix the electrical terminal 4, further enhancing the stability of the connector. At the same time, the fixed installation portion 42 in the electrical terminal 4 is installed in the electrical connection fixing sleeve 33, and one end of the plug-in portion 43 extends into the electrical connection fixing groove, which can ensure a stable connection between the electrical terminal 4 and the connector.

[0038] The fixed panel 11 is provided with an installation sealing groove 111 on the periphery of the fixed cavity 13, and a first sealing ring 112 is installed on the installation sealing groove 111. The first sealing ring 112 is used to seal the periphery of the fixed cavity 13 when the fixed panel 11 is installed; the plug-in sealing groove 124 is provided on the periphery of the plug connector 12, and a second sealing ring 125 is installed on the plug-in sealing groove 124. The second sealing ring 125 is used to seal the periphery of the plug connector 12 when the plug connector 12 is plugged in. In this embodiment, the first sealing ring 112 is used to seal the structure in the fixed cavity 13 including the fixed seat 3, so as to ensure the sealing of the internal structure and the structural safety. The second sealing ring 125 is used to play a sealing connection role in the plug connector 12 plug-in process, thereby ensuring that the connector maintains sealing after plugging.

[0039] The size of the insertion opening 121 is larger than that of the plug-in cavity 122, and a stop plugging step 126 is provided between the plug-in cavity 122 and the insertion opening 121. In this embodiment, a larger insertion opening 121 is used to guide the connector when it is inserted, and a guide slope is provided on the stop plugging step 126 for centering guidance during insertion to ensure plugging accuracy.

[0040] A plug-in guide strip 1221 and a plug-in positioning strip 1222 are provided in the plug-in cavity 122. The plug-in guide strip 1221 and the plug-in positioning strip 1222 both protrude toward the plug-in cavity 122. In this embodiment, when the connectors are plugged in, the connectors are positioned and matched by the plug-in guide strip 1221 and the plug-in positioning strip 1222 to ensure the plug-in accuracy and also play an anti-mistake effect during the plug-in process.

[0041] The fixed panel 11 is provided with a limit spring piece 113 above the locking beam 21. The limit spring piece 113 includes an embedded portion 1131 and a spring piece portion 1132. One end of the embedded portion 1131 is embedded in the fixed panel 11. The locking beam 21 is provided with a positioning groove toward the spring piece portion 1132. One end of the limit spring piece 113 is connected to the embedded portion 1131 and the other end faces the locking beam 21, so as to limit the locking beam 21 when the elastic element 16 presses. In this embodiment, the spring piece portion 1132 is provided to lock and fix the locking beam 21, so as to fix it after locking, and prevent the locking from being unstable.

[0042] Sliding baffles 151 are provided on both sides of the lateral slide groove 15, and sliding steps 221 are provided on both sides of the sliding pin 22. The sliding steps 221 are used to cooperate with the sliding baffles 151 so that the sliding pin 22 can keep sliding in the lateral slide groove 15. In this embodiment, the sliding baffles 151 are provided to cooperate with the sliding steps 221 to form a sliding structure of the slide rail, thereby ensuring structural stability during the sliding process and allowing the sliding pin 22 to keep sliding in the lateral slide groove 15.

[0043] A sliding limit slot 152 is provided in the lateral slide slot 15, and a sliding elastic buckle 222 is provided on the sliding pin 22. An elastic buckle 223 is provided on the periphery of the sliding elastic buckle 222. The sliding elastic buckle 222 can be slidably provided in the sliding limit slot 152. A limit platform is provided at one end of the sliding limit slot 152, and the limit platform is used to limit the sliding elastic buckle 222. In this embodiment, the sliding limit slot 152 and the sliding limit buckle are provided to limit the sliding position, and are kept in the sliding elastic buckle 222 during the pressing process of the elastic element 16.

[0044] One side of the locking beam 21 can be sunk into the end surface groove 14, and elastic grooves 141 are provided on both sides of the end surface groove 14, and positioning columns 142 are provided in the elastic grooves 141. The locking beam 21 is provided with a positioning sleeve 211 facing the positioning column 142, and the elastic element 16 is a spring and is provided between the positioning column 142 and the positioning sleeve 211. In this embodiment, the positioning column 142 and the positioning sleeve 211 are provided to position the elastic element 16, thereby ensuring the stability of the elastic element 16 inside.

[0045] The mounting and fixing portion 31 is provided with a wiring groove 311, and the wiring portion 41 is provided in the wiring groove 311, and the wiring groove 311 is used for wiring the wiring portion 41. In this embodiment, the wiring groove 311 is provided for wiring with the wiring portion 41, so that the electrical terminal 4 cooperates with the connecting wire for electrical conduction.

[0046] The power connection fixing sleeve 33 is provided with a clamping portion 331, and the outer diameter of the clamping portion 331 is evenly distributed with a plurality of elastic clamping grooves 332 in a circumferential direction, which are used to clamp and fix the fixed installation portion 42, and the fixed installation portion 42 is provided with a clamping groove 421, which is used to clamp and fix the clamping portion 331. In this embodiment, the clamping groove 421 is clamped by the clamping portion 331 to ensure the structural stability of the power connection terminal 4, so that it remains in place during the plugging process without displacement, and the structure is reliable.

[0047] The two sides of the plug-in fixing portion 32 are provided with fixing buckles 321, and the fixing cavity 13 is provided with fixing slots 131, and the fixing slots 131 are used to cooperate with the fixing buckles 321 to fix the plug-in fixing portion 32 in the fixing cavity 13. In this embodiment, the plug-in fixing portion 32 is fixed in the fixing cavity 13 by the cooperation of the fixing slots 131 and the fixing buckles 321, so as to ensure the stability of the structure and facilitate assembly.

[0048] The plug-in portion 43 is provided with a plug-in hole 431, and the plug-in hole 431 is provided with a contact ring 432, and the contact ring 432 is a conductive contact ring 432, which is used to generate contact resistance when the connector is plugged in. In this embodiment, the conductive contact ring 432 is provided for contact and conduction when the connector is plugged in, ensuring the stability of contact and conduction, and providing slight resistance to generate damping effect, so that the plug-in conductive effect is better.

[0049] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A board-end connector with a locking structure, characterized in that: include A plug-in shell, the plug-in shell comprising a fixed panel, a plug connector and a fixed cavity, the fixed panel is used to separate the plug connector and the fixed cavity, the plug connector is provided with an insertion port and a plug-in cavity, one end of the insertion port is connected to the plug-in cavity, the plug-in cavity is provided with a plurality of plug-in columns, one end of the plug-in columns is connected to the fixed cavity, the plug connector is provided with an end face groove and lateral sliding grooves on both sides of the end face groove near the fixed panel, and an elastic element is provided at a position of the end face groove near the lateral sliding groove; A locking element, the locking element comprising a locking beam and sliding pins arranged on both sides of the locking beam, a locking block is arranged on the outer side of the sliding pin, the sliding pin can be slidably arranged on the lateral sliding groove, and one end of the elastic element is pressed toward the locking beam; A fixing seat, the fixing seat comprising an installation fixing portion and a plug fixing portion, the plug fixing portion is provided with an electrical connection fixing sleeve, the installation fixing portion is arranged in the fixing cavity, and the electrical connection fixing sleeve extends toward the plug post; and The power terminal comprises a wiring portion, a fixed installation portion and a plug-in portion. The fixed installation portion is installed in a power connection fixed sleeve, and one end of the plug-in portion extends to the interior of the plug-in column.

2. The board-end connector with a locking structure according to claim 1, characterized in that: The fixed panel is provided with an installation sealing groove on the periphery of the fixed cavity, and a first sealing ring is installed on the installation sealing groove, and the first sealing ring is used to seal the periphery of the fixed cavity when the fixed panel is installed; The outer periphery of the plug connector is provided with a plug-in sealing groove, and the plug-in sealing groove is installed with a second sealing ring, and the second sealing ring is used for sealing the outer periphery of the plug connector when the plug connector is plugged in.

3. The board-end connector with a locking structure according to claim 1, characterized in that: The size of the insertion port is larger than the size of the insertion cavity, and a stop insertion step is provided between the insertion cavity and the insertion port; A plug-in guide bar and a plug-in positioning bar are arranged in the plug-in cavity, and both the plug-in guide bar and the plug-in positioning bar protrude toward the plug-in cavity.

4. The board-end connector with a locking structure according to claim 1, characterized in that: The fixed panel is provided with a limiting spring sheet above the locking beam, and the limiting spring sheet includes an embedded portion and a spring sheet portion. One end of the embedded portion is embedded in the fixed panel, and the locking beam is provided with a positioning groove toward the spring sheet portion. One end of the limiting spring sheet is connected to the embedded portion and the other end faces the locking beam, so as to limit the locking beam when the elastic element is pressed.

5. The board-end connector with a locking structure according to claim 1, characterized in that: Sliding baffles are arranged on both sides of the lateral sliding groove, and sliding steps are arranged on both sides of the sliding pin. The sliding steps are used to cooperate with the sliding baffles so that the sliding pin keeps sliding in the lateral sliding groove.

6. The board-end connector with a locking structure according to claim 1, characterized in that: A sliding limit slot is arranged in the lateral sliding slot, a sliding elastic buckle is arranged on the sliding pin, an elastic slot is arranged on the periphery of the sliding elastic buckle, the sliding elastic buckle can be slidably arranged in the sliding limit slot, a limiting platform is arranged at one end of the sliding limit slot, and the limiting platform is used for limiting the sliding elastic buckle.

7. The board-end connector with a locking structure according to claim 1, characterized in that: One side of the locking beam can be sunk into the end face groove, elastic grooves are arranged on both sides of the end face groove, positioning columns are arranged in the elastic grooves, and a positioning sleeve is arranged on the locking beam facing the positioning column. The elastic element is a spring and is arranged between the positioning column and the positioning sleeve.

8. The board-end connector with a locking structure according to claim 1, characterized in that: The installation and fixing part is provided with a wiring groove, the wiring part is arranged in the wiring groove, and the wiring groove is used for wiring the wiring part; The power connection fixing sleeve is provided with an opening and closing clamping part, and the outer diameter of the opening and closing clamping part is evenly distributed with multiple elastic clamping grooves in an annular direction for clamping and fixing the fixed installation part, and the fixed installation part is provided with a clamping groove for clamping and fixing the opening and closing clamping part.

9. The board-end connector with a locking structure according to claim 1, characterized in that: Fixing buckles are arranged on both sides of the plug-in fixing part, and a fixing slot is arranged in the fixing cavity. The fixing buckles are used to cooperate with the fixing slot to fix the plug-in fixing part in the fixing cavity.

10. The board-end connector with a locking structure according to claim 9, characterized in that: The plug-in portion is provided with a plug-in hole, and the plug-in hole is provided with a contact ring. The contact ring is a conductive contact ring used to generate contact resistance when the connectors are plugged in.

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