Connector

Abstract

The utility model discloses a connector which comprises a first connecting assembly, a second connecting assembly and a mounting assembly, the second connecting assembly and the first connecting assembly can be mutually plugged to form electric connection, and the first connecting assembly or the second connecting assembly is mounted on the mounting assembly; the first connecting assembly comprises a first shell, a first terminal and a first C-shaped clamping ring, a first annular groove is formed in the outer circumferential wall of the first terminal, the first C-shaped clamping ring is installed in the first annular groove, a first cavity is formed in the first shell, and a first limiting part is arranged on the inner circumferential wall of the first cavity in a protruding mode; the first connecting assembly is configured in a way that the first terminal is inserted into the first cavity along the first direction, the first C-shaped clamping ring is extruded and deformed by the first limiting part, and the first C-shaped clamping ring is deformed and recovered after passing through the first limiting part and abuts against one end face of the first limiting part, so that the first terminal is limited to move in the first direction. The terminal is limited and fixed by using the C-shaped clamping ring, so that the terminal is very convenient and rapid to mount and dismount.

Description

Technical Field

[0001] This application relates to the technical field of connectors, and particularly to a connector. Background Art

[0002] A connector, also known as a plug-in, plug, and socket, generally refers to an electrical connector, that is, a device connecting two active devices to transmit current or signals. A welding robot connector is a key component for connecting and transmitting electrical energy and signals in industrial automation. Existing electrical connectors generally include two parts: a socket and a plug. The plug is connected to a cable, and the socket is fixed on an electronic device. When in use, the plug is inserted into the socket to achieve electrical connection. However, when installing terminals on existing plugs or sockets, rubber steps are generally relied on for positioning. A relatively large thrust is required when inserting the terminal into the rubber core, resulting in difficult installation and easy extrusion deformation and damage. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide a connector that uses a C-shaped snap ring to limit and fix the terminal, which is very convenient and fast for both installation and disassembly.

[0004] To achieve the above object, this application adopts the following technical solutions:

[0005] On the one hand, a connector is provided, including: a first connection component, a second connection component, and an installation component. The second connection component and the first connection component can be plugged into and unplugged from each other to form an electrical connection. The first connection component or the second connection component is installed on the installation component;

[0006] The first connection component includes a first housing, a first terminal, and a first C-shaped snap ring. A first annular groove is formed on the outer peripheral wall of the first terminal. The first C-shaped snap ring is installed in the first annular groove. A first cavity is formed in the first housing, and a first limiting portion protrudes from the inner peripheral wall of the first cavity. The first connection component is configured such that the first terminal is inserted into the first cavity along a first direction, the first C-shaped snap ring is deformed by the first limiting portion, and after the first C-shaped snap ring passes through the first limiting portion, it deforms and recovers to abut against one end face of the first limiting portion, thereby restricting the first terminal from displacing in the first direction.

[0007] Further, the second connection component includes a second outer shell, a second terminal, and a second C-shaped retaining ring. A second annular groove is formed in the outer peripheral wall of the second terminal, and the second C-shaped retaining ring is installed in the second annular groove. A second cavity is formed in the second outer shell, and a second limiting portion protrudes from the inner peripheral wall of the second cavity. The second connection component is configured such that the second terminal is inserted into the second cavity in a direction opposite to the first direction, the second C-shaped retaining ring is deformed by the second limiting portion, and after passing through the second limiting portion, the second C-shaped retaining ring is restored to its original shape and abuts against one end face of the second limiting portion, thereby restricting the displacement of the second connection component in the plugging and unplugging direction.

[0008] Further, a first limiting block protrudes from the outer peripheral wall of the first terminal, and a second limiting block protrudes from the outer peripheral wall of the second terminal. The first limiting block abuts against and is limited by the other end face of the first limiting portion, and the second limiting block abuts against and is limited by the other end face of the second limiting portion.

[0009] Further, the first outer shell includes a rubber core and a rubber core shell. A plugging and unplugging cavity is formed between the rubber core shell and the rubber core. The second outer shell is inserted into the plugging and unplugging cavity in the plugging and unplugging direction, and an O-ring is provided between the outer wall surface of the rubber core and the second outer shell.

[0010] Further, a first protrusion protrudes from the outer wall surface of the rubber core, and a second protrusion protrudes from the inner wall surface of the rubber core shell. The first protrusion and the second protrusion are misaligned in the axial direction, and a retaining ring is provided between the first protrusion and the second protrusion to restrict the axial displacement between the rubber core and the rubber core shell.

[0011] Further, the mounting component includes a mounting base and a protective cover. The protective cover is snap-fitted onto the mounting base, and a mounting cavity is formed therebetween. The first outer shell or the second outer shell is installed in the mounting cavity.

[0012] Further, a positioning post protrudes from the mounting base and is located in the mounting cavity. Positioning holes for cooperating with the positioning post for positioning are formed in both the first outer shell and the second outer shell.

[0013] Further, a pre-installation groove is formed in the mounting base, and a pre-installation portion for cooperating with the pre-installation groove for pre-installation is provided on the protective cover.

[0014] Further, snap holes are formed in both side surfaces of the mounting base, and elastic snap fasteners for cooperating with the snap holes for snap-fitting are provided on the protective cover. A tolerance groove extends from the snap holes towards the protective cover, and the axial distance of the tolerance groove is greater than the aperture of the snap holes.

[0015] Furthermore, wire harnesses are inserted into both the first terminal and the second terminal. Sealing bodies are provided between the wire harnesses and the second housing, and between the wire harnesses and the first housing. Tail nuts are respectively provided on the first housing and the second housing, and the tail nuts can be tightened to compress the sealing bodies.

[0016] The beneficial effects of this application are as follows: The connector is composed of a first connection component, a second connection component, and an installation component. Among them, the first connection component and the second connection component can be inserted and unplugged from each other to achieve electrical connection, and these two component parts are stably installed at the required positions through the installation component. The first connection component includes a first housing, a first terminal, and a first C-shaped snap ring. A first annular groove is cleverly formed on the outer peripheral wall of the first terminal for installing the first C-shaped snap ring. When the first terminal is axially inserted into the first cavity in the first housing, the first C-shaped snap ring will first encounter a first limiting portion protruding from the inner peripheral wall of the first housing. At this time, the C-shaped snap ring is squeezed and deformed by the limiting portion due to its elastic characteristic, thereby allowing the terminal to pass through smoothly. Once the C-shaped snap ring completely passes over the limiting portion, it will immediately return to its original shape, and its end is in close contact with one end face of the limiting portion, forming a stable barrier that effectively restricts any displacement of the terminal in the insertion direction. This design not only greatly simplifies the installation process of the terminal, avoiding the risk of extrusion deformation caused by the need for a large thrust during installation in the traditional method, but also significantly improves the stability of the terminal after fixation. In addition, due to the elastic restoring force of the C-shaped snap ring, it ensures the long-term stability of the terminal position, and can maintain the reliability of the connection even under vibration or external force, thereby extending the service life of the connector. Description of the Drawings

[0017] The following further elaborates on this application in detail based on the drawings and embodiments.

[0018] Figure 1 is a perspective view of the connector according to the embodiment of this application;

[0019] Figure 2 is an exploded view of the connector according to the embodiment of this application;

[0020] Figure 3 is a front view of the connector according to the embodiment of this application;

[0021] Figure 4 For this application Figure 3 is a schematic cross-sectional view taken along line A-A in;

[0022] Figure 5 is an exploded schematic view of the first connection component according to the embodiment of this application;

[0023] Figure 6 is an exploded schematic view of the second connection component according to the embodiment of this application;

[0024] Figure 7 is a perspective view of the second terminal described in the embodiments of the present application;

[0025] Figure 8 is a perspective view of the second terminal described in the embodiments of the present application;

[0026] Figure 9 is a perspective view of the rubber core described in the embodiments of the present application;

[0027] Figure 10 is a perspective view of the second housing described in the embodiments of the present application;

[0028] Figure 11 is an exploded view of the mounting assembly described in the embodiments of the present application.

[0029] In the figure: 1. First connection assembly; 101. First housing; 102. First terminal; 103. First C-shaped snap ring; 104. Retaining ring; 1011. Rubber core; 1012. Rubber core housing; 1013. First cavity; 1014. First limiting portion; 1021. First annular groove; 1022. First limiting block; 2. Second connection assembly; 201. Second housing; 202. Second terminal; 203. Second C-shaped snap ring; 2011. Second cavity; 2012. Second limiting portion; 2021. Second annular groove; 2022. Second limiting block; 3. Mounting assembly; 301. Mounting seat; 302. Protective cover; 3011. Positioning post; 3012. Clamping hole; 3013. Fault tolerance groove; 3014. Pre-installation groove; 3021. Pre-installation portion; 3022. Elastic buckle; 4. O-ring; 5. Wiring harness; 6. Cable sealing body; 7. Tail nut; 8. Protective cap; 9. Positioning hole. Detailed implementation manners

[0030] To make the technical problems solved by the present application, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0031] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0032] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0033] In view of the technical problems existing in the existing connectors, this embodiment provides a connector, as Figures 1 - 11 shown, comprising: a first connection component 1, a second connection component 2 and a mounting component 3. The second connection component 2 and the first connection component 1 can be plugged into and unplugged from each other to form an electrical connection, and the first connection component 1 or the second connection component 2 is mounted on the mounting component 3; the first connection component 1 includes a first housing 101, a first terminal 102 and a first C-shaped snap ring 103. A first annular groove 1021 is formed in the outer peripheral wall of the first terminal 102, and the first C-shaped snap ring 103 is mounted in the first annular groove 1021. A first cavity 1013 is formed in the first housing 101, and a first limiting portion 1014 protrudes from the inner peripheral wall of the first cavity 1013. The first connection component 1 is configured such that: the first terminal 102 is inserted into the first cavity 1013 along a first direction, the first C-shaped snap ring 103 is squeezed and deformed by the first limiting portion 1014, and after the first C-shaped snap ring 103 passes through the first limiting portion 1014, it deforms and recovers and abuts against an end surface of the first limiting portion 1014, thereby restricting the first terminal 102 from displacing in the first direction.

[0034] Based on the above solution, first, insert the first terminal 102 into the first cavity 1013 opened in the first housing 101 along the first direction. Here, the first direction refers to the axial direction, which is also the direction opposite to the plugging and unplugging direction. During the insertion process, the first annular groove 1021 on the outer peripheral wall of the first terminal 102 will first come into contact with the first limiting portion 1014 on the inner peripheral wall of the first housing 101. As the first terminal 102 continues to be inserted, the first C-shaped snap ring 103 pre-installed in the first annular groove 1021 will be squeezed by the first limiting portion 1014 and elastically deformed. This deformation allows the C-shaped snap ring to temporarily contract so as to smoothly pass through the first limiting portion 1014. When the first C-shaped snap ring 103 completely passes through the first limiting portion 1014, it will re-expand due to the elastic restoring force, and its end is in close contact with one end face of the first limiting portion 1014. This contact state effectively restricts the displacement of the first terminal 102 in the first direction, thus realizing the firm fixation of the first terminal 102. When it is necessary to connect the second connection component 2 to the first connection component 1, just align and plug and unplug the two until the predetermined electrical connection state is reached. At this time, the first terminal 102 in the first connection component 1 forms a reliable electrical connection with the corresponding part in the second connection component 2; when disconnecting, just pull out the second connection component 2 from the first connection component 1. Since the first terminal 102 has been firmly fixed in the first housing 101 by the first C-shaped snap ring 103, the disconnection process will not affect the position stability of the first terminal 102. Using the first C-shaped snap ring 103 to limit and fix the terminal avoids the problem of requiring a large thrust for installation in the traditional rubber step positioning method, significantly reduces the installation difficulty, and also facilitates the subsequent disassembly work; moreover, the elastic restoring force of the first C-shaped snap ring 103 ensures the position stability of the terminal after fixation, reduces the risk of the terminal loosening or falling off due to vibration or external force, thereby improving the reliability of the connection. In addition, since no excessive thrust is required during the installation process, the risk of extrusion deformation of the terminal and surrounding components is reduced, protecting the overall structural integrity of the connector.

[0035] Meanwhile, the second connection component 2 includes a second housing 201, a second terminal 202, and a second C-shaped retaining ring 203. A second annular groove 2021 is formed on the outer peripheral wall of the second terminal 202, and the second C-shaped retaining ring 203 is installed in the second annular groove 2021. A second cavity 2011 is formed in the second housing 201, and a second limiting portion 2012 protrudes from the inner peripheral wall of the second cavity 2011. The second connection component 2 is configured such that the second terminal 202 is inserted into the second cavity 2011 in a direction opposite to the first direction. The second C-shaped retaining ring 203 is deformed by the second limiting portion 2012. After the second C-shaped retaining ring 203 passes through the second limiting portion 2012, it returns to its original shape and abuts against one end face of the second limiting portion 2012, thereby restricting the displacement of the second connection component 2 in the insertion and extraction direction. The second housing 201, as the main body part of the second connection component 2, is internally designed with a second cavity 2011 for accommodating the second terminal 202. The second terminal 202 is a key component for transmitting electrical signals or currents, and a second annular groove 2021 is formed on its outer peripheral wall for installing the second C-shaped retaining ring 203. The second C-shaped retaining ring 203 has a certain elasticity and plays a role in limiting and fixing. The second terminal 202 is designed to be inserted into the second cavity 2011 in the second housing 201 in a direction opposite to the first direction (i.e., in the reverse direction). This reverse insertion design not only meets various connection requirements in practical applications but also increases the flexibility and versatility of the connector. During the insertion process, the second C-shaped retaining ring 203 first encounters the second limiting portion 2012 protruding from the inner peripheral wall of the second cavity 2011. Similar to the situation in the first connection component 1, the second C-shaped retaining ring 203 is elastically deformed by the second limiting portion 2012. As the second terminal 202 continues to be inserted, the C-shaped retaining ring gradually passes through the limiting portion and quickly returns to its original shape after passing through. Its end tightly abuts against one end face of the second limiting portion 2012, thereby restricting the further displacement of the second terminal 202 in the insertion direction. Through the cooperation of the second C-shaped retaining ring 203 and the second limiting portion 2012, the second terminal 202 is firmly fixed in the second housing 201. This fixing method can not only effectively prevent the terminal from loosening or falling off due to vibration or external force but also ensure good electrical contact performance of the connector during the insertion and extraction process. Compared with the traditional rubber step positioning method, the fixing method of the C-shaped retaining ring is more reliable and easier to operate. It does not require additional fastening tools or complex installation steps, and only needs to simply insert the terminal to achieve firm fixing.

[0036] In summary, by introducing the C-type snap ring limiting and fixing technology into both the first and second connection components 2 in the present application, the connector achieves the convenience of terminal installation and disassembly, the improvement of connection stability, and the optimization of overall performance. This innovative design not only improves production efficiency and reliability but also provides a more reliable and efficient solution for power and signal transmission in the field of industrial automation.

[0037] Specifically, the first connection component 1 is a socket, and the second connection component 2 is a plug. The plug can be inserted into the socket along the plugging and unplugging direction to form a stable electrical connection.

[0038] In some embodiments, a first limiting block 1022 protrudes from the outer peripheral wall of the first terminal 102, and a second limiting block 2022 protrudes from the outer peripheral wall of the second terminal 202. The first limiting block 1022 abuts and limits against the other end face of the first limiting portion 1014, and the second limiting block 2022 abuts and limits against the other end face of the second limiting portion 2012. The first limiting block 1022 is located on the outer peripheral wall of the first terminal 102. As an additional limiting structure, when the first terminal 102 is completely inserted into the first terminal 102 cavity of the first housing 101 and the first C-type snap ring 103 abuts and fixes against one end face of the first limiting portion 1014, the first limiting block 1022 will further tightly abut against the other end face of the first limiting portion 1014, that is, the other end opposite to the C-type snap ring. It is equivalent that the first C-type snap ring 103 and the first limiting block 1022 jointly define the axial position of the first terminal 102, preventing the left and right movement of the first terminal 102 in the axial direction. This design achieves a more stable and effective limiting effect. The limiting of the second terminal 202 is the same and will not be elaborated here. By ensuring the installation stability of the first terminal 102 and the second terminal 202, the current transmission stability of the connector after assembly is further ensured.

[0039] Further, the first housing 101 includes a rubber core 1011 and a rubber core housing 1012. An insertion and extraction cavity is formed between the rubber core housing 1012 and the rubber core 1011. The second housing 201 is inserted into the insertion and extraction cavity along the insertion and extraction direction. An O-ring seal 4 is provided between the outer wall surface of the rubber core 1011 and the second housing 201. As the core part of the first housing 101, the rubber core 1011 is usually made of a material with good insulation performance and elasticity. It can not only provide a stable support for the first terminal 102, but also play a role in buffering and guiding during the insertion and extraction process. The rubber core housing 1012 wrapped around the outside of the rubber core 1011 is usually made of a strong material such as metal or hard plastic. Its main function is to protect the rubber core 1011 from external impacts and damages, and together with the rubber core 1011, form the insertion and extraction cavity. The insertion and extraction cavity is composed of the space between the rubber core housing 1012 and the rubber core 1011, and is the channel for the insertion of the second housing 201. The design of the insertion and extraction cavity needs to ensure sufficient space to accommodate the second housing 201 and allow it to move smoothly along the insertion and extraction direction. The shape and size of the insertion and extraction cavity should precisely match the outer shape and size of the second housing 201, so as to play a good guiding role during the insertion and extraction process. This helps to reduce the insertion and extraction force, improve the insertion and extraction efficiency, and reduce the risk of damage caused by improper insertion and extraction. In order to improve the sealing performance of the connector and prevent impurities such as dust and moisture from entering the inside of the insertion and extraction cavity, an O-ring seal 4 is provided between the outer wall surface of the rubber core 1011 and the second housing 201 in this application. The O-ring seal 4 has good elasticity and sealing performance. When the second housing 201 is inserted into the insertion and extraction cavity, it can closely fit on the contact surface between the two, forming an effective sealing barrier. This helps to protect the electrical components inside the connector from the influence of the external environment and ensure the stability and reliability of the connection.

[0040] Further, a first protrusion is convexly provided on the outer wall surface of the rubber core 1011, and a second protrusion is convexly provided on the inner wall surface of the rubber core housing 1012. The first protrusion and the second protrusion are distributed in an axially offset manner, and a retaining ring 104 is provided between the first protrusion and the second protrusion to limit the axial displacement between the rubber core 1011 and the rubber core housing 1012. A plurality of or at least one first protrusion is convexly provided on the outer wall surface of the rubber core 1011. These protrusions are distributed axially and maintain a certain gap from the inner wall surface of the rubber core housing 1012. The design of the first protrusion is intended to interact with the structure inside the rubber core housing 1012 to limit the axial movement of the rubber core 1011; correspondingly, a plurality of or at least one second protrusion is convexly provided on the inner wall surface of the rubber core housing 1012. These protrusions are also distributed axially but are axially offset from the first protrusion. This axially offset distribution design ensures that the first protrusion and the second protrusion do not directly face each other, but form a staggered arrangement structure. Between the first protrusion and the second protrusion, one or more retaining rings 104 are cleverly provided. The retaining ring 104 is usually made of a material with good elasticity and wear resistance, such as rubber or silica gel. The function of the retaining ring 104 is to fill the gap between the first protrusion and the second protrusion and tightly connect the two together through its elastic force. When the rubber core 1011 is installed into the rubber core housing 1012, the first protrusion will contact the retaining ring 104 and be squeezed by its elastic force. At the same time, since the second protrusion is axially offset from the first protrusion, a certain constraint relationship will also be formed between them. This dual constraint mechanism effectively limits the axial displacement between the rubber core 1011 and the rubber core housing 1012. Through the combined design of the protrusion and the retaining ring 104, not only the connection strength between the rubber core 1011 and the rubber core housing 1012 is enhanced, but also the stability of the connector during plugging and unplugging and use is improved. Even under external forces, the connector can maintain good sealing performance and electrical connection status.

[0041] Preferably, the mounting assembly 3 includes a mounting base 301 and a protective cover 302. The protective cover 302 is snap-fitted onto the mounting base 301, and an installation cavity is formed therebetween. The first housing 101 or the second housing 201 is installed in the installation cavity. The mounting base 301 serves as the basic part of the mounting assembly 3. The mounting base 301 usually has a stable structure and sufficient strength to support the entire connector and fix it in the required position. The mounting base 301 may be designed with structural features such as threaded holes and mounting grooves for connection to equipment or other fixing devices. The protective cover 302 is another important component of the mounting assembly 3. It is designed with a snap-fitting structure that matches the mounting base 301. By snap-fitting the protective cover 302 onto the mounting base 301, a closed installation cavity is formed therebetween. This installation cavity provides a safe installation environment for the connector and prevents the intrusion of impurities such as dust and moisture. The installation cavity provides sufficient space for the installation of the connector. Whether it is the first housing 101 or the second housing 201 (depending on the design and installation requirements of the connector), it can be stably installed in the installation cavity. This design ensures the stability and reliability of the connector during the installation process. In addition to providing installation space, the installation cavity also plays a role in protecting the connector. The tight fit between the protective cover 302 and the mounting base 301 forms an effective sealing barrier that can resist external environmental interference and damage, which helps to extend the service life of the connector and improve its performance stability.

[0042] Specifically, a positioning post 3011 protrudes from the mounting base 301. The positioning post 3011 is located within the mounting cavity. Positioning holes 9 that cooperate with the positioning post 3011 for positioning are provided on both the first housing 101 and the second housing 201. The positioning post 3011 protrudes from the mounting base 301 and is located inside the mounting cavity. Its quantity and distribution position are determined according to the specific structure and installation requirements of the connector to ensure that accurate positioning references can be provided for both the first housing 101 and the second housing 201 simultaneously. The shape of the positioning post 3011 is usually cylindrical or other shapes that are easy to cooperate with the positioning hole 9. The dimensions are precisely designed according to the dimensions of the positioning hole 9 to ensure a tight fit between the two. Positioning holes 9 that cooperate with the positioning post 3011 are provided on both the first housing 101 and the second housing 201. The positions and quantities of these positioning holes 9 correspond one-to-one with the positioning posts 3011 on the mounting base 301 to ensure smooth insertion and tight fit during installation. The shape and dimensions of the positioning hole 9 match those of the positioning post 3011 to ensure seamless docking between the two. This design of tight fit not only improves the installation accuracy and stability but also helps prevent misalignment or loosening caused by external forces during installation. When installing the connector, first fix the mounting base 301 at the required position. Then, align the first housing 101 and the second housing 201 with the positioning post 3011 on the mounting base 301 respectively and slowly insert them along the direction of the positioning post 3011. During the insertion process, the positioning post 3011 will smoothly enter the positioning hole 9 to form a tight fit relationship.

[0043] In addition, a pre - installation groove 3014 is formed on the mounting base 301, and a pre - installation portion 3021 that is pre - installed in cooperation with the pre - installation groove 3014 is provided on the protective cover 302. Clamping holes 3012 are formed on both side surfaces of the mounting base 301, and elastic clamping buckles 3022 that are clamped in cooperation with the clamping holes 3012 are provided on the protective cover 302. A tolerance groove 3013 is formed by the clamping hole 3012 extending towards the protective cover 302, and the axial distance of the tolerance groove 3013 is greater than the aperture of the clamping hole 3012. A pre - installation groove 3014 is formed on the mounting base 301, and these grooves are used to provide initial positioning and guidance for the protective cover 302 in the initial stage of installation. The shape and size of the pre - installation groove 3014 match those of the pre - installation portion 3021 on the protective cover 302, enabling the protective cover 302 to smoothly slide into the pre - installation groove 3014 during the initial installation, thus ensuring the smooth progress of the subsequent installation process. The pre - installation portion 3021 can be a protrusion or other structures that can closely cooperate with the pre - installation groove 3014. When the protective cover 302 is initially installed on the mounting base 301, the pre - installation portion 3021 will slide into the pre - installation groove 3014, forming an initial fixed relationship. Clamping holes 3012 are formed on both side surfaces of the mounting base 301, and these holes are used to achieve further fixation through the elastic clamping buckles 3022 after the protective cover 302 is fully installed in place. The shape and size of the clamping hole 3012 match those of the elastic clamping buckle 3022 to ensure a tight fit between the two. The elastic clamping buckle 3022 is usually made of a material with good elasticity, such as plastic or rubber. During the installation process, when the protective cover 302 slides into the pre - installation groove 3014 and approaches the mounting base 301, the elastic clamping buckle 3022 will automatically snap into the clamping hole 3012, forming a stable clamping relationship.

[0044] To cope with minor deviations or errors during the installation process, a tolerance groove 3013 is formed by the clamping hole 3012 extending towards the protective cover 302 in this application. The axial distance of the tolerance groove 3013 is greater than the aperture of the clamping hole 3012, which means that even if there is a certain deviation when the elastic clamping buckle 3022 is initially snapped in, it can be gradually adjusted to the correct position through the guidance of the tolerance groove 3013 and finally achieve a stable clamping.

[0045] It should be noted that wire harnesses 5 are inserted on both the first terminal 102 and the second terminal 202. Sealing bodies 6 are provided between the wire harnesses 5 and the second housing 201, and between the wire harnesses 5 and the first housing 101. Tail nuts 7 are respectively provided on the first housing 101 and the second housing 201, and the tail nuts 7 can be tightened to compress the sealing bodies 6. Holes or slots for inserting the wire harnesses 5 are reserved on both the first terminal 102 and the second terminal 202. The wire harnesses 5 are inserted into the terminals through these holes or slots and form electrical connections with the conductive parts inside the terminals. The material and specifications of the wire harnesses 5 need to be selected according to specific application scenarios and electrical requirements. The sealing body 6 is a sealing structure provided between the wire harness 5 and the housing. Its main function is to prevent impurities such as moisture and dust from entering the connection area between the wire harness 5 and the terminal, thereby protecting the stability and reliability of the electrical connection. After the wire harness 5 is inserted into the terminal, the sealing body 6 is installed on the contact surface between the wire harness 5 and the housing. The sealing body 6 is usually made of materials with good elasticity and sealing performance, such as rubber or silicone. During the installation process, the sealing body 6 is compressed and closely fits between the wire harness 5 and the housing, forming an effective sealing barrier. The tail nut 7 is a fastening structure provided on the housing. Its main function is to compress the sealing body 6 by tightening, thereby enhancing the fastening and sealing effect between the wire harness 5 and the housing. The tail nut 7 is usually installed at the tail of the first housing 101 and the second housing 201, corresponding to the positions of the wire harness 5 and the sealing body 6. During the installation process, the user can rotate the tail nut 7 to gradually compress the sealing body 6 until the required fastening and sealing effect is achieved. The design of the tail nut 7 should be convenient for the user to operate and have good fastening performance and sealing performance.

[0046] In addition, protective caps 8 are also provided on the first terminal 102 and the second terminal 202. The protective caps 8 are provided to protect the terminals during transportation. Specifically, it means that before the first connection component 1 and the second connection component 2 are plugged together, the protective caps 8 need to be removed during plugging to avoid the situation of inability to connect.

[0047] In the description of this article, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] In the description of this specification, the descriptions referring to terms such as "one embodiment" and "example" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0049] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0050] The technical principles of the present application have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be construed in any way as a limitation on the protection scope of the present application. Based on the explanations herein, those skilled in the art can readily conceive of other specific implementation manners of the present application without creative efforts, and these manners will all fall within the protection scope of the present application.

Claims

1. A connector, characterized in that, Including: A first connection component (1), a second connection component (2), and a mounting component (3), wherein the second connection component (2) and the first connection component (1) can be plugged into and unplugged from each other to form an electrical connection, and the first connection component (1) or the second connection component (2) is mounted on the mounting component (3); The first connection component (1) includes a first housing (101), a first terminal (102), and a first C-shaped snap ring (103). A first annular groove (1021) is formed in the outer peripheral wall of the first terminal (102), and the first C-shaped snap ring (103) is mounted in the first annular groove (1021). A first cavity (1013) is formed in the first housing (101), and a first limiting portion (1014) protrudes from the inner peripheral wall of the first cavity (1013). The first connection component (1) is configured such that the first terminal (102) is inserted into the first cavity (1013) in a first direction, the first C-shaped snap ring (103) is deformed by the first limiting portion (1014), and after the first C-shaped snap ring (103) passes through the first limiting portion (1014), it deforms and recovers and abuts against one end face of the first limiting portion (1014), thereby restricting the displacement of the first terminal (102) in the first direction.

2. The connector according to claim 1, wherein, The second connection component (2) includes a second housing (201), a second terminal (202), and a second C-shaped snap ring (203). A second annular groove (2021) is formed in the outer peripheral wall of the second terminal (202), and the second C-shaped snap ring (203) is mounted in the second annular groove (2021). A second cavity (2011) is formed in the second housing (201), and a second limiting portion (2012) protrudes from the inner peripheral wall of the second cavity (2011). The second connection component (2) is configured such that the second terminal (202) is inserted into the second cavity (2011) in a direction opposite to the first direction, the second C-shaped snap ring (203) is deformed by the second limiting portion (2012), and after the second C-shaped snap ring (203) passes through the second limiting portion (2012), it deforms and recovers and abuts against one end face of the second limiting portion (2012), thereby restricting the displacement of the second connection component (2) in the plugging and unplugging direction.

3. The connector according to claim 2, characterized in that, A first limiting block (1022) protrudes from the outer peripheral wall of the first terminal (102), and a second limiting block (2022) protrudes from the outer peripheral wall of the second terminal (202). The first limiting block (1022) abuts against and is limited by the other end face of the first limiting portion (1014), and the second limiting block (2022) abuts against and is limited by the other end face of the second limiting portion (2012).

4. The connector according to claim 2, wherein The first outer shell (101) includes a rubber core (1011) and a rubber core shell (1012). An insertion and extraction cavity is formed between the rubber core shell (1012) and the rubber core (1011). The second outer shell (201) is inserted into the insertion and extraction cavity along the insertion and extraction direction. An O-ring seal (4) is provided between the outer wall surface of the rubber core (1011) and the second outer shell (201).

5. The connector according to claim 4, wherein The outer wall surface of the rubber core (1011) is convexly provided with a first protrusion, and the inner wall surface of the rubber core shell (1012) is convexly provided with a second protrusion. The first protrusion and the second protrusion are misaligned in the axial direction, and a retaining ring (104) is provided between the first protrusion and the second protrusion to limit the axial displacement between the rubber core (1011) and the rubber core shell (1011).

6. The connector according to claim 2, characterized in that, The mounting assembly (3) includes a mounting base (301) and a protective cover (302). The protective cover (302) is snap-fitted onto the mounting base (301), and a mounting cavity is formed between the two. The first outer shell (101) or the second outer shell (201) is mounted in the mounting cavity.

7. The connector according to claim 6, characterized in that, The mounting base (301) is convexly provided with a positioning post (3011). The positioning post (3011) is located in the mounting cavity. Positioning holes (9) for cooperating with the positioning post (3011) for positioning are provided on both the first outer shell (101) and the second outer shell (201).

8. The connector according to claim 6, characterized in that, A pre-installation groove (3014) is provided on the mounting base (301), and a pre-installation portion (3021) for cooperating with the pre-installation groove (3014) for pre-installation is provided on the protective cover (302).

9. The connector according to claim 6, characterized in that, Snap-fitting holes (3012) are provided on both side surfaces of the mounting base (301), and elastic snap-fasteners (3022) for cooperating with the snap-fitting holes (3012) for snap-fitting are provided on the protective cover (302). A tolerance groove (3013) is formed by extending the snap-fitting holes (3012) in the direction of the protective cover (302). The axial distance of the tolerance groove (3013) is greater than the aperture of the snap-fitting holes (3012).

10. The connector according to claim 2, wherein, Wiring harnesses (5) are inserted into both the first terminal (102) and the second terminal (202). Sealing bodies (6) are provided between the wiring harnesses (5) and the second outer shell (201), and between the wiring harnesses (5) and the first outer shell (101). Tail nuts (7) are respectively provided on the first outer shell (101) and the second outer shell (201). The tail nuts (7) can be tightened to compress the sealing bodies (6).

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