Plug connector, energy storage connector and energy storage connector assembly

Abstract

The invention provides a plug connector, an energy storage connector and an energy storage connector assembly, and the plug connector comprises a plug housing which is internally and fixedly provided with a plug terminal, and a first end of the plug housing is provided with a connection cavity for a socket connector to be inserted in; a locking hole is further formed in the plug shell, and a locking opening communicated with the connecting cavity is formed in the middle of the locking hole; the locking piece comprises a locking arm corresponding to the locking hole and a base fixedly connected with the locking arm; the inner side, facing the connecting cavity, of the locking arm is provided with a locking protruding block, and the outer side is provided with a first limiting piece. A second limiting piece corresponding to the first limiting piece is arranged on the hole wall of the locking hole; the elastic piece is arranged between the base and the plug shell; when external force is applied to the base, the locking arm slides in the locking hole in the first direction, and when the locking protruding block protrudes into the connecting cavity from the locking opening, the locking piece reaches the locking position. The plug connector provided by the invention is good in stability, and the operation convenience of the locking piece is high.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to a plug connector, an energy storage connector, and an energy storage connector assembly. Background Art

[0002] Energy storage devices are often electrically connected to other devices through energy storage connectors, allowing them to power other devices or charge them. Common energy storage connectors include plugs and sockets that connect to mating connectors. The plugs connect to cables, while the sockets connect to electrical devices or other equipment. Because energy storage connectors are used continuously for extended periods of time after connection, and may even require movement as a whole, their stability after connection is a key evaluation criterion for their safety and practicality.

[0003] In order to improve the connection stability between the plug connector and the socket connector, a locking mechanism is generally provided in the plug connector. Currently, the locking mechanism generally includes a locking component, an unlocking component, an elastic component and other multi-component mechanisms. Not only is the installation process more cumbersome, but the locking button and unlocking button respectively provided on the two circumferential surfaces of the connector housing also require more operating space for the installation and removal of the energy storage connector, otherwise it will affect the convenience of operation and use of the energy storage connector. Summary of the Invention

[0004] Therefore, in order to overcome the above-mentioned problems, the present invention provides a plug connector in which the locking mechanism only includes a locking member and an elastic member, and the locking button and the unlocking button of the locking member are the same component, which is easy to install and use, and provides an energy storage connector and an energy storage connector assembly including the plug connector.

[0005] To this end, according to a first aspect, the present invention provides a plug connector, comprising:

[0006] The plug housing has a plug terminal fixed therein and a connection cavity formed at its first end for inserting the socket connector; a locking hole is also provided in the plug housing, and a locking opening is provided in the middle of the locking hole and communicates with the connection cavity;

[0007] The locking member includes a locking arm corresponding to the locking hole and a base fixedly connected to the locking arm; a locking protrusion is provided on the inner side of the locking arm facing the connecting cavity, and a first limiting member is provided on the outer side; a second limiting member corresponding to the first limiting member is provided on the hole wall of the locking hole;

[0008] an elastic member, disposed between the base and the plug housing;

[0009] When an external force is applied to the base and the locking arm slides in the locking hole along the first direction until the locking protrusion protrudes from the locking mouth into the connecting cavity, the locking member reaches the locking position; when the locking arm is pushed from the locking position and slides in the first direction until the locking protrusion passes the locking mouth, the locking member reaches the unlocking position; when the external force is removed, the locking member is limited to the locking position by the first limiting member, the second limiting member and the elastic member; when the locking member is in the locking position, the locking protrusion can lock the socket connector in the connecting cavity.

[0010] Optionally, the end face of the locking protrusion facing the first end is an inclined surface with a preset angle to the second direction, so that when the socket connector is inserted into the connecting cavity along the second direction, part of the plugging force on the socket connector is converted into a thrust along the first direction on the locking arm, causing the locking member to slide from the locked position to the unlocked position.

[0011] Optionally, the first limiting member is a limiting elastic arm extending along the first direction, and the second limiting member is a limiting groove; when the locking member is limited to the locking position by the first limiting member, the second limiting member and the elastic member, the tail end of the limiting elastic arm abuts against the limiting groove, limiting the sliding of the locking arm in a third direction; the third direction is the direction opposite to the first direction.

[0012] Optionally, there are two locking holes, which are respectively located on both sides of the connecting cavity; there are correspondingly two locking arms, and both ends of the base are fixedly connected to the two locking arms respectively.

[0013] Optionally, an engaging groove corresponding to the base is provided on the plug housing. When the locking member reaches the locking position, the end of the base in the first direction is embedded in the engaging groove, one end of the elastic member abuts against the base, and the other end abuts against the bottom of the engaging groove; when the locking member slides from the locking position to the unlocking position, the base slides in the engaging groove.

[0014] According to a second aspect, the present invention provides an energy storage connector, comprising:

[0015] The socket connector comprises a socket housing and a socket terminal fixed in the socket housing; a locking step is provided on the outer periphery of the plug end of the socket housing;

[0016] The plug connector described in the first aspect or any embodiment of the first aspect; the plug-in end of the socket shell is inserted into the connecting cavity, and when the locking piece is in the locking position, the locking protrusion abuts against the locking step, locking the socket connector in the connecting cavity.

[0017] Optionally, an assembly hole is provided in the socket shell, and a first assembly step and a second assembly step are provided in the assembly hole; a third assembly step and an assembly slot are provided on the socket terminal; when the socket terminal is assembled in the assembly hole, the first assembly step and the third assembly step are abutted against each other, and the retaining ring provided in the assembly slot is abutted against the second assembly step, thereby fixing the socket terminal in the socket shell.

[0018] According to a third aspect, the present invention provides an energy storage connector assembly, comprising:

[0019] The energy storage connector according to the second aspect or any one of the embodiments of the second aspect;

[0020] The conductive wire harness has its end inserted into the plug housing through the guide hole provided on the plug housing and is screwed to the plug terminal;

[0021] The first sealing ring is arranged in the guide hole. When the conductive wire harness is inserted into the plug housing through the guide hole, the conductive wire harness passes through the first sealing ring.

[0022] Optionally, the plug terminal includes an assembly section and a connection section, the assembly section is fixed in the plug housing, and the connection section extends into the connection cavity; the conductive wire harness is screwed to the assembly section, and an operating port is provided on the plug housing corresponding to the end face of the assembly section;

[0023] The plug connector also includes a cover body and a second sealing ring. The cover body is arranged corresponding to the operation port. The second sealing ring is arranged on the cover body. When the cover body covers the operation port, the second sealing ring abuts against the peripheral wall of the plug housing.

[0024] Optionally, there are two energy storage connectors, and the two ends of the conductive harness are respectively screwed to the plug terminals of the two energy storage connectors.

[0025] The technical solution of the present invention has the following advantages:

[0026] The plug connector provided by the present invention provides a locking hole connected to the connecting cavity in the middle part of the plug shell, and then provides a locking arm corresponding to the locking hole in the locking member, so that it has a locking protrusion facing the inner side of the connecting cavity and a first limiting member on the outer side, and an elastic member is provided between the base of the locking member and the plug shell. Finally, when an external force is applied to the base and the locking arm slides in the locking hole along the first direction, the locking member can first reach the locking position where the locking protrusion protrudes from the locking mouth into the connecting cavity, and if the external force on the base is removed, the locking member will still be limited in the locking position by the first limiting member, the second limiting member and the elastic member, which can not only ensure the locking effect of the locking member on the plug connector and the plug connector, but also play the role of pre-assembly. The locking member can be pre-assembled on the plug connector and does not necessarily need to be installed when the tap connector and the socket connector are plugged in), which makes the operation more convenient and practical. At the same time, as long as the external force is continued to be applied to the base, the locking arm can be pushed to continue sliding in the first direction, and when the locking protrusion passes the locking mouth, it reaches the unlocking position, and the locking protrusion is released from the locking state of the socket connector. That is, the base can be used as a button component for performing locking and unlocking operations at the same time, and the force direction when performing locking and unlocking operations is consistent, so that the operating space required when using the plug connector is relatively small (compared to the connector in which the buttons for performing locking and unlocking are different components), which further improves the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 A schematic structural diagram of an energy storage connector assembly provided in an embodiment of the present invention;

[0029] Figure 2 A cross-sectional view of an energy storage connector assembly provided by an embodiment of the present invention;

[0030] Figure 3 A partial structure explosion of the energy storage connector assembly provided by an embodiment of the present invention;

[0031] Figure 4 A schematic structural diagram of an energy storage connector provided in an embodiment of the present invention;

[0032] Figure 5 A cross-sectional view of a socket connector provided by an embodiment of the present invention;

[0033] Figure 6 A schematic structural diagram of a plug connector provided in an embodiment of the present invention;

[0034] Figure 7 A partial structure explosion of a plug connector provided by an embodiment of the present invention;

[0035] Figure 8 A schematic structural diagram of a plug connector provided by an embodiment of the present invention when the locking member is in a locked position;

[0036] Figure 9 A schematic structural diagram of a plug connector provided by an embodiment of the present invention when the locking member is in an unlocked position;

[0037] Figure 10 A schematic diagram of the structure of the locking member in the plug connector according to an embodiment of the present invention locking the socket connector;

[0038] Description of reference numerals:

[0039] 100-Energy storage connector;

[0040] 110-plug connector;

[0041] 111 - plug housing; 1111 - connecting cavity; 1112 - locking hole; 1112a - second limiting member; 1113 - locking opening; 1114 - fitting groove; 1115 - guide hole; 1116 - second fastening member; 1117 - operation opening;

[0042] 112-plug terminal;

[0043] 113 - locking member; 1131 - locking arm; 1131a - locking protrusion; 1131b - first limiting member; 1131c - inclined surface; 1132 - base;

[0044] 114- elastic member;

[0045] 115-cover body; 1151-first fastening member;

[0046] 116-second sealing ring;

[0047] 120-socket connector;

[0048] 121-socket housing; 1211-locking step; 1212-first assembly step; 1213-second assembly step;

[0049] 122-socket terminal; 1221-third assembly step;

[0050] 123-clasp;

[0051] 124-third sealing ring;

[0052] 200-conductive wire harness;

[0053] 300-First sealing ring. DETAILED DESCRIPTION

[0054] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present 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.

[0056] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0057] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structures. Other replacements, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0058] Furthermore, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments (i.e., those features not relevant to the best mode currently considered for carrying out the invention, or those features not relevant to implementing the invention) may be described. Furthermore, the technical features involved in the different embodiments of the invention described below may be combined with one another as long as they do not conflict with one another.

[0059] Please refer to Figure 1-Figure 3 , is a structural diagram of an energy storage connector assembly provided by an embodiment of the present invention, such as Figure 1-Figure 3 As shown, the energy storage connector assembly includes an energy storage connector 100, a conductive wire harness 200, and a first sealing ring 300. The end of the conductive wire harness 200 is inserted into the plug housing 111 within the energy storage connector 100 through a guide hole 1115 provided on the plug housing 111 and is threadedly connected to the plug terminal 112. The first sealing ring 300 is disposed within the guide hole 1115. When the conductive wire harness 200 is inserted into the plug housing 111 through the guide hole 1115, the conductive wire harness 200 passes through the first sealing ring 300.

[0060] Specifically, the conductive wire harness 200 may be a soft copper bus wire harness or other cable wire harness.

[0061] In this embodiment, in order to facilitate the screw connection between the conductive wire harness 200 and the plug terminal 112, as shown in FIG. Figure 2 and Figure 3 As shown, the plug housing 111 in the plug connector 110 may be provided with an operating port 1117, which corresponds to the end face of the plug terminal 112 for threaded connection with the conductive harness 200; and the plug connector 110 may further include a cover body 115 and a second sealing ring 116, wherein the cover body 115 is provided corresponding to the operating port 1117, and the second sealing ring 116 is provided on the cover body 115. When the cover body 115 covers the operating port 1117, the second sealing ring 116 abuts against the peripheral wall of the plug housing 111.

[0062] Specifically, if Figure 2 and Figure 3 As shown, the cover 115 may be provided with a plurality of first fastening members 1151 , and the plug housing 111 may be provided with a plurality of corresponding second fastening members 1116 . When the cover 115 covers the operating port 1117 , the cover 115 and the plug housing 111 are fastened and connected.

[0063] Specifically, if Figure 2 As described above, one of the second fastening parts 1116 on the plug housing 111 can be set as a fastening flange arranged on the outer periphery of the plug housing 111, and the corresponding first fastening part 1151 on the cover body 115 is a hook; at this time, when the cover body 115 is fastened to the plug housing 111, the hook is fastened to the outer periphery of the plug housing 111, which makes it convenient to apply external force on the hook to release the fastening connection relationship between the cover body 115 and the plug housing 111.

[0064] In this embodiment, when one end of the conductive harness 200 is threadedly connected to the energy storage connector 100 in this embodiment, the other end thereof can be connected to the energy storage connector 100 in this embodiment or to an energy storage connector of other structures.

[0065] Please refer to Figures 4-10 , which is a structural diagram of the energy storage connector 100 provided in an embodiment of the present invention, as shown Figure 3-10 As shown, the energy storage connector 100 includes a plug connector 110 and a socket connector 120 .

[0066] Please refer to Figure 5 The socket connector 120 includes a socket housing 121 and a socket terminal 122 fixed in the socket housing 121 . A locking step 1211 is provided on the outer periphery of the plug-in end of the socket housing 121 .

[0067] In this embodiment, in order to improve the connection stability between the socket terminal 122 and the socket housing 121, as shown in FIG. Figure 5As shown, a first assembly step 1212 and a second assembly step 1213 can be provided in the assembly hole of the socket housing 121, and a third assembly step 1221 and an assembly slot are correspondingly provided on the socket terminal 122. When the socket terminal 122 is assembled in the assembly hole, the first assembly step 1212 and the third assembly step 1221 are abutted against each other, and the snap ring 123 provided in the assembly slot is abutted against the second assembly step 1213, thereby fixing the socket terminal 122 in the socket housing 121.

[0068] Specifically, if Figure 5 As shown, a third sealing ring 124 can also be provided on the socket terminal 122. When the socket terminal 122 is fixed in the socket housing 121, the third sealing ring 124 abuts against the peripheral wall of the socket housing 121. Specifically, the third sealing ring 124 can be provided between the third assembly step 1221 and the assembly slot.

[0069] Please refer to Figures 6-10 , is a structural diagram of a plug connector 110 provided in an embodiment of the present invention, as shown Figures 6-10 As shown, the plug connector 110 has a plug housing 111, a plug terminal 112, a locking member 113 and an elastic member 114, wherein the plug terminal 112 is fixed in the plug housing 111, and the first end ( Figure 6 In the position shown, the first end is the lower end) and a connecting cavity 1111 is formed for inserting the socket connector 120. A locking hole 1112 is also provided in the plug housing 111, and a locking port 1113 communicating with the connecting cavity 1111 is provided in the middle of the locking hole 1112; the locking member 113 includes a locking arm 1131 corresponding to the locking hole 1112, and a base 1132 fixedly connected to the locking arm 1131; a locking protrusion 1131a is provided on the inner side of the locking arm 1131 facing the connecting cavity 1111, and a first limiting member 1131b is provided on the outer side; a second limiting member 1112a corresponding to the first limiting member 1131b is provided on the hole wall of the locking hole 1112; and the elastic member 114 is provided between the base 1132 and the plug housing 111.

[0070] In this embodiment, Figure 8 As shown, when an external force is applied to the base 1132 of the locking member 113, the locking arm 1131 slides in the locking hole 1112 along the first direction until the locking protrusion 1131a protrudes from the locking port 1113 into the connecting cavity 1111, the locking member 113 reaches the locked position; Figure 9As shown, the locking arm 1131 is pushed from the locking position and slides along the first direction until the locking protrusion 1131a passes over the locking opening 1113, and the locking member 113 reaches the unlocking position; when the external force is removed, the locking member 113 is limited to the locking position by the first limiting member 1131b, the second limiting member 1112a and the elastic member 114; when the locking member 113 is in the locking position, the locking protrusion 1131a can lock the socket connector 120 in the connecting cavity 1111. Specifically, as Figure 10 As shown, if the plugging direction of the plug connector 110 toward the socket connector 120 is taken as the fourth direction, when the locking member 113 is in the locking position, when the plug connector 110 is plugged toward the socket connector 120, the locking protrusion 1131a abuts against the locking step 1211, limiting the movement of the plug connector 110 in the second direction; the second direction is the direction opposite to the fourth direction.

[0071] Specifically, if Figure 7 and Figure 8 As shown, the first limiting member 1131b can be set as a limiting elastic arm extending along the first direction, and the second limiting member 1112a can be set as a limiting groove; when the locking member 113 is limited to the locking position by the first limiting member 1131b, the second limiting member 1112a and the elastic member 114, the tail end of the limiting elastic arm is against the limiting groove, limiting the sliding of the locking arm 1131 in the third direction; the third direction is the direction opposite to the first direction.

[0072] In this embodiment, in order to further improve the convenience of operation when the plug connector 110 and the socket connector 120 are plugged in, Figure 7 and Figure 10 As shown, the end surface of the locking protrusion 1131a facing the first end can be configured as an inclined surface 1131c at a predetermined angle to the second direction. This allows, when the receptacle connector 120 is inserted into the connecting cavity 1111 along the second direction, part of the insertion force on the receptacle connector 120 is converted into a thrust along the first direction on the locking arm 1131, causing the locking member 113 to slide from the locked position to the unlocked position. Those skilled in the art will understand that the phrase "the receptacle connector 120 is inserted into the connecting cavity 1111 along the second direction" is merely for convenience of describing the movement of the receptacle connector 120, and does not affect the movement of the plug connector 110 toward the receptacle connector 120 for insertion in actual use.

[0073] In this embodiment, in order to further improve the locking stability of the locking member 113 to the socket connector 120, as shown in FIG. Figure 7-Figure 9 As shown, two locking holes 1112 can be set, and the two locking holes 1112 are respectively located on both sides of the connecting cavity 1111; two locking arms 1131 are correspondingly set, and the two ends of the base 1132 are fixedly connected to the two locking arms 1131 respectively.

[0074] In this embodiment, Figure 7-Figure 9 As shown, an engaging groove 1114 corresponding to the base 1132 can be provided on the plug housing 111. When the locking member 113 reaches the locking position, the end of the base 1132 in the first direction is embedded in the engaging groove 1114, and one end of the elastic member 114 abuts against the base 1132, and the other end abuts against the bottom of the engaging groove 1114; when the locking member 113 slides from the locking position to the unlocking position, the base 1132 slides in the engaging groove 1114.

[0075] In specific implementation, a first elastic member mounting groove can be set on the base 1132, and a second elastic member mounting groove can be set on the plug housing 111. When the elastic member 114 is set between the base 1132 and the plug housing 111, the two ends of the elastic member 114 are respectively set in the first elastic member mounting groove and the second elastic member mounting groove.

[0076] In summary, the plug connector 110, the energy storage connector 100, and the energy storage connector assembly provided by the embodiment of the present invention are based on the provision of a locking hole 1112 in the plug housing 111 of the plug connector 110, the middle of which is connected to the connecting cavity 1111, and the provision of a locking arm 1131 corresponding to the locking hole 1112 in the locking member 113, so that the locking arm 1131 has a locking protrusion 1131a on the inner side facing the connecting cavity 1111 and a first limiting member 1131b on the outer side, and the provision of a base 113 in the locking member 113. There is an elastic member 114 between 132 and the plug housing 111, so that when an external force is applied to the base 1132 and the locking arm 1131 slides in the locking hole 1112 along the first direction, the locking member 113 can first reach the locking position where the locking protrusion 1131a protrudes from the locking port 1113 into the connecting cavity 1111, and if the external force on the base 1132 is removed, the locking member 113 will still be limited in the locking position by the first limiting member 1131b, the second limiting member 1112a and the elastic member 114. The arrangement can not only ensure that the locking member 113 has a firm locking effect on the plug connector 110 and the plug connector 110, but also has the effect of pre-assembly (the locking member 113 can be pre-assembled on the plug connector 110, and does not necessarily need to be installed when the tap connector and the socket connector 120 are plugged in), which makes it more convenient to use and practical. At the same time, as long as the external force is continuously applied to the base 1132, the locking arm 1131 can be pushed to continue sliding in the first direction, and when the locking protrusion 1131a passes over the locking hole 1113, the locking member 113 reaches the unlocked position, releasing the locking protrusion 1131a from the socket connector 120. That is, the base 1132 can simultaneously serve as a button component for performing locking and unlocking operations, and the force applied in the locking and unlocking operations is consistent, so that the operating space required when using the plug connector 110 is relatively small (compared to a connector in which the buttons for performing locking and unlocking are different components), further improving the convenience of operation.

[0077] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A plug connector, characterized in that: include: A plug housing, in which a plug terminal is fixed, and a connecting cavity is formed at a first end thereof for inserting a socket connector; a locking hole is also provided in the plug housing, and a locking opening is provided in the middle of the locking hole and communicates with the connecting cavity; A locking member comprising a locking arm corresponding to the locking hole and a base fixedly connected to the locking arm; a locking protrusion is provided on the inner side of the locking arm facing the connecting cavity, and a first limiting member is provided on the outer side; a second limiting member corresponding to the first limiting member is provided on the hole wall of the locking hole; an elastic member, disposed between the base and the plug housing; When an external force is applied to the base and the locking arm slides in the locking hole along a first direction until the locking protrusion protrudes from the locking opening into the connecting cavity, the locking member reaches a locking position; When the locking arm is pushed from the locking position and slides along the first direction until the locking protrusion passes over the locking opening, the locking member reaches the unlocking position; when the external force is removed, the locking member is limited to the locking position by the first limiting member, the second limiting member and the elastic member; When the locking member is in the locking position, the locking protrusion can lock the socket connector in the connecting cavity.

2. The plug connector according to claim 1, wherein: The end surface of the locking protrusion facing the first end is an inclined surface with a preset angle to the second direction, so that when the socket connector is inserted into the connecting cavity along the second direction, part of the plugging force on the socket connector is converted into a thrust along the first direction on the locking arm, causing the locking member to slide from the locked position to the unlocked position.

3. The plug connector according to claim 1, wherein: The first limiting member is a limiting elastic arm extending along the first direction, and the second limiting member is a limiting groove; when the locking member is limited to the locking position by the first limiting member, the second limiting member and the elastic member, the tail end of the limiting elastic arm abuts against the limiting groove, limiting the sliding of the locking arm in a third direction; the third direction is a direction opposite to the first direction.

4. The plug connector according to any one of claims 1 to 3, wherein: There are two locking holes, which are respectively located on both sides of the connecting cavity; there are correspondingly two locking arms, and the two ends of the base are respectively fixedly connected to the two locking arms.

5. The plug connector according to claim 1, wherein: The plug housing is provided with an engaging groove corresponding to the base. When the locking member reaches the locking position, the end of the base in the first direction is embedded in the engaging groove, one end of the elastic member abuts against the base, and the other end abuts against the bottom of the engaging groove; when the locking member slides from the locking position to the unlocking position, the base slides in the engaging groove.

6. An energy storage connector, characterized in that: include: A socket connector comprises a socket housing and a socket terminal fixed in the socket housing; a locking step is provided on the outer periphery of the plug end of the socket housing; The plug connector according to any one of claims 1 to 5; the plug-in end of the socket housing is inserted into the connecting cavity, and when the locking member is in the locking position, the locking protrusion abuts against the locking step, thereby locking the socket connector in the connecting cavity.

7. The energy storage connector according to claim 6, characterized in that: An assembly hole is provided in the socket housing, and a first assembly step and a second assembly step are provided in the assembly hole; a third assembly step and an assembly slot are provided on the socket terminal; when the socket terminal is assembled in the assembly hole, the first assembly step abuts against the third assembly step, and the snap ring provided in the assembly slot abuts against the second assembly step, thereby fixing the socket terminal in the socket housing.

8. An energy storage connector assembly, characterized in that: include: The energy storage connector according to claim 6 or 7; The conductive wire harness has its end inserted into the plug housing through the guide hole provided on the plug housing and is screwed to the plug terminal; The first sealing ring is arranged in the guide hole. When the conductive wire harness is inserted into the plug housing through the guide hole, the conductive wire harness passes through the first sealing ring.

9. The energy storage connector assembly according to claim 8, characterized in that: The plug terminal includes an assembly section and a connection section, wherein the assembly section is fixed in the plug housing and the connection section extends into the connection cavity; the conductive wire harness is screwed to the assembly section, and an operation port is provided on the plug housing corresponding to the end surface of the assembly section; The plug connector further includes a cover body and a second sealing ring. The cover body is arranged corresponding to the operation port. The second sealing ring is arranged on the cover body. When the cover body covers the operation port, the second sealing ring abuts against the peripheral wall of the plug housing.

10. The energy storage connector assembly according to claim 9, characterized in that: There are two energy storage connectors, and the two ends of the conductive wire harness are respectively screwed to the plug terminals of the two energy storage connectors.

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