A single seat sealed socket

Abstract

The utility model belongs to the field of electric connector especially is concerned about a single seat sealed socket. In order to promote the applicability of single seat sealed socket, the utility model provides a single seat sealed socket, including insulator, terminal, interlock casing and be used for with terminal insertion's pin, and the pin is integrally injection molded with the insulator to realize the one -time sealing of pin and insulator, be equipped with the slot on the insulator, and the one end of pin is inserted into the slot, and the other end is used for with the plug terminal of plug insertion, and the terminal is installed in interlock casing and is used for with wire crimping connection, and the interlock casing is inserted in the slot to make the terminal with the one end of pin in the slot insertion. Through the switching of pin, the terminal and the insulator can be set separately, so that the terminal can be installed after being connected with the wire crimping, the outlet mode is changed, the applicability of single seat sealed socket is improved, and the single seat sealed socket can be suitable for more kinds of arrangement forms of internal components of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connectors, and in particular relates to a single-seat sealed socket. Background Technology

[0002] For new energy vehicles, before the vehicle is assembled, only the socket is installed on the equipment of the vehicle body, without the plug. Therefore, the socket needs to have a self-sealing function to prevent water from entering the equipment during transportation, installation or storage, and to ensure that the electrical performance of the equipment is not affected.

[0003] like Figure 1 As shown, the single-seat sealed socket includes a shield 1, a housing 2, a sealing gasket 3, an insulator 4, a power terminal 5, and a signal terminal 6 assembled together. The power terminal 5 and the signal terminal 6 are integrally injection molded with the insulator 4 to achieve a seal between the insulator 4 and the power terminal 5 and the signal terminal 6, thereby preventing external contaminants from entering the device through the space between the insulator and the power terminal.

[0004] The sealing gasket 3 has through holes for the pins of the shield 1 to pass through, and the housing 2 has bolt holes through which bolts pass to fix the socket to the device panel 7. After the socket is assembled on the device panel 7, the pins of the shield 1 are held by the contact claws of the housing 2 and the supporting part of the insulator 4, and the pins of the shield 1 pass through the through holes to contact the device panel 7 to achieve grounding of the shield 1.

[0005] The sealing gasket 3 is squeezed between the insulator 4 and the device panel 7 to achieve a seal between the insulator 4 and the device panel 7, thereby ensuring that contaminants on the outside of the socket mounting surface cannot enter the device through the mounting surface; at the same time, the sealing gasket 3 is also squeezed between the housing 2 and the device panel 7 to achieve a seal between the housing 2 and the device panel 7, thereby ensuring that contaminants on the outside cannot enter the device through the assembly gap surface at the pin of the shield 1.

[0006] The above three seals enable the socket to have a self-sealing function, preventing water from entering the device. At the same time, the housing 2 and the insulator 4 are manufactured separately, which helps to reduce manufacturing difficulty and allows the insulator 4 and terminals (including power terminals 5 and signal terminals 6) to be replaced separately later.

[0007] In the above-mentioned single-seat sealed socket, since the terminal and the insulator 4 are integrally injection molded, it can only meet the requirements for welding out the wire. Due to the limited length of the terminal, the accuracy requirements for the arrangement of internal components are high, which leads to the large limitations and poor applicability of this single-seat sealed socket, making it unsuitable for various complex situations.

[0008] Meanwhile, during the injection molding process, due to the different materials of the terminals and insulator 4, there may be gaps at the interface between the insulator 4 and the terminals during injection molding, resulting in poor sealing. Utility Model Content

[0009] The purpose of this utility model is to provide two types of single-seat sealed sockets to solve the technical problems of the existing single-seat sealed sockets having large limitations and poor applicability.

[0010] To achieve the above objectives, the two technical solutions for single-seat sealed sockets provided by this utility model are as follows: The first type: A single-seat sealed socket includes an insulator and a signal terminal, and further includes an interlocking housing and a signal pin for insertion into the signal terminal. The signal pin is integrally injection molded with the insulator to achieve a one-time seal between the signal pin and the insulator. The insulator has a slot, one end of the signal pin extends into the slot, and the other end is used to insert into a plug signal terminal on the plug. The signal terminal is installed in the interlocking housing and is used for crimping connection with a wire. The interlocking housing is inserted into the slot so that the signal terminal and the end of the signal pin located in the slot are inserted into each other.

[0011] Furthermore, a sealing groove is formed at the end of the slot near the signal pin, and a sealing element is provided in the sealing groove. The signal pin passes through the sealing element to block the interface between the signal pin and the insulator, thereby achieving a secondary seal between the signal pin and the insulator.

[0012] Furthermore, the sealing groove is a glue-filling groove for glue filling. After the glue solidifies, it forms the sealing element to achieve secondary sealing between the signal pin and the insulator through glue filling. An observation window communicating with the glue-filling groove is provided on the outer surface of the insulator to observe the amount of glue filling during glue filling.

[0013] Furthermore, the seal is a gasket installed in a sealing groove, and the gasket has a through hole for the signal pin to pass through, so as to achieve a secondary seal between the signal pin and the insulator.

[0014] Furthermore, a power terminal is also installed on the insulator. The power terminal and the insulator are integrally injection molded to achieve a primary seal between the power terminal and the insulator. The end of the insulator used to mate with the plug is defined as the mating end. In the mating direction, the end of the insulator away from the mating end is provided with a sealing groove. The power terminal passes through the sealing groove, and a sealing element is provided in the sealing groove to achieve a secondary seal between the power terminal and the insulator.

[0015] Furthermore, the single-seat sealed socket also includes a power terminal and a power pin. The power pin is integrally injection molded with the insulator to achieve a one-time seal between the power pin and the insulator. One end of the power pin extends into the slot, and the other end is used to connect with the plug power terminal on the plug. The power terminal is installed in the interlock housing and is used to connect with the wire through crimping. When the interlock housing is inserted into the slot, it can also connect the power terminal with the end of the power pin located in the slot.

[0016] Furthermore, a sealing groove is formed at one end of the slot near the corresponding pin, and a sealing element is provided in the sealing groove. The corresponding pin passes through the sealing element to block the interface between the corresponding pin and the insulator, thereby achieving a secondary seal between the corresponding pin and the insulator.

[0017] Furthermore, the sealing groove is a glue-filling groove for potting glue. After the glue solidifies, it forms a seal to achieve a secondary seal between the corresponding pin or power terminal and the insulator.

[0018] Furthermore, the sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the corresponding pin or power terminal, and the sealing ring is squeezed between the corresponding pin or power terminal and the sealing ring mounting groove to achieve secondary sealing between the corresponding pin or power terminal and the insulator.

[0019] The second type: A single-seat sealed socket includes an insulator and a power terminal, and further includes an interlocking housing and a power pin for insertion into the power terminal. The power pin is integrally injection molded with the insulator to achieve a one-time seal between the power pin and the insulator. The insulator has a slot, one end of the power pin extends into the slot, and the other end is used to insert into the plug power terminal on the plug. The power terminal is installed in the interlocking housing and is used for crimping connection with a wire. The interlocking housing is inserted into the slot so that the power terminal is inserted into the end of the power pin located in the slot.

[0020] Furthermore, a sealing groove is formed at the end of the slot near the power pin, and a sealing element is provided in the sealing groove. The power pin passes through the sealing element to block the interface between the power pin and the insulator, thereby achieving a secondary seal between the power pin and the insulator.

[0021] Furthermore, the sealing groove is a glue-filling groove for glue filling. After the glue solidifies, it forms the sealing element to achieve secondary sealing between the power pin and the insulator through glue filling. An observation window communicating with the glue-filling groove is provided on the outer surface of the insulator to observe the amount of glue filling during glue filling.

[0022] Furthermore, a signal terminal is also installed on the insulator. The signal terminal and the insulator are integrally injection molded to achieve a primary seal between the signal terminal and the insulator. The end of the insulator used to mate with the plug is defined as the mating end. In the mating direction, the end of the insulator away from the mating end is provided with a sealing groove. The signal terminal passes through the sealing groove, and a sealing element is provided in the sealing groove to achieve a secondary seal between the signal terminal and the insulator.

[0023] Furthermore, the sealing groove is a glue-filling groove for potting glue. After the glue solidifies, it forms a seal to achieve a secondary seal between the corresponding pin or signal terminal and the insulator.

[0024] Furthermore, the sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the corresponding pin or signal terminal, and the sealing ring is squeezed between the corresponding pin or signal terminal and the sealing ring mounting groove to achieve secondary sealing between the corresponding pin or signal terminal and the insulator.

[0025] The beneficial effects of the single-seat sealed socket provided by this utility model are as follows: Compared with the prior art, in this utility model, the insulator and signal pins and / or power pins are integrally injection molded, and the corresponding signal terminals and / or power terminals are installed in the interlock housing, thereby allowing the signal terminals and / or power terminals to be installed later. Specifically, after the signal terminals and / or power terminals are crimped to the wires, the interlock housing is installed in the slot, and the corresponding pins are plugged into the corresponding terminals.

[0026] By using pins for conversion, the terminals and insulators can be set separately. This allows the terminals to be installed after they have been crimped to the wires, changing the wiring method and improving the applicability of single-seat sealed sockets. This enables single-seat sealed sockets to be used for more arrangements of internal components in equipment.

[0027] Furthermore, the pins or terminals that are integrally injection molded with the insulator are subjected to secondary sealing to improve the sealing performance and reliability of the single-seat sealed socket. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of a single-seat sealed socket in the background art; Figure 2 This is a cross-sectional view of the single-seat sealed socket of this utility model from one angle; Figure 3 This is an exploded view of the structure of the single-seat sealed socket of this utility model; Figure 4 for Figure 3 A structural schematic diagram of the insulator, power terminals, and signal pins from one perspective; Figure 5 for Figure 3Another structural diagram of the insulator, power terminals, and signal pins; Figure 6 for Figure 5 AA view; Figure 7 This is a schematic diagram of the structure when the insulator and the signal pin are sealed by two sealing rings. Figure 8 This is an exploded view of the structure of an interlock housing and signal terminals; Figure 9 for Figure 8 A schematic diagram of the structure after the interlock housing and signal terminals are assembled; Figure 10 This is a cross-sectional view of the single-seat sealed socket of this utility model from another angle.

[0029] Explanation of reference numerals in the attached figures: 1. Shielding cover; 2. Housing; 3. Sealing gasket; 4. Insulator; 4-1. Glue potting tank; 4-2. Observation window; 4-3. Card slot; 4-4. Slot; 5. Power terminal; 6. Signal terminal; 6-1. Spring; 7. Equipment panel; 8. Interlock housing; 8-1. Guide hole; 8-2. Limiting hole; 8-3. Limiting protrusion; 8-4. Limiting cantilever; 8-5. Barb; 9. Signal pin; 10. Wire; 11. Glue block; 12-1. First sealing ring; 12-2. Second sealing ring. Detailed Implementation

[0030] To address the problems in the background technology, the core inventive concept of this utility model is as follows: A pin is used for the connection, and the pin and the insulator are integrally injection molded to ensure the sealing performance of the single-seat sealed socket. Furthermore, since the terminals are installed after injection molding, the interlocking housing can be installed in the slot after the terminals and wires are crimped together, thus changing the wire exit method from welding to crimping, improving the applicability of the single-seat sealed socket, and enabling it to adapt to a wider variety of equipment layouts.

[0031] During injection molding, due to the different materials of the pin and the insulator, a gap may exist at the interface between them. Theoretically, as long as the gap does not penetrate the insulator, a seal can be guaranteed, thus achieving a primary seal between the pin and the insulator. In this invention, to ensure the reliability of the seal, a secondary seal between the pin and the insulator is achieved by methods such as potting or adding a sealing ring.

[0032] Similarly, primary sealing between the terminal and the insulator can be achieved through injection molding, and secondary sealing between the terminal and the insulator can be achieved through potting or adding sealing rings.

[0033] The present invention will be further described in detail below with reference to an embodiment of a single-seat sealed socket.

[0034] Reference Figures 2-10 As shown, a single-seat sealed socket includes a shielding cover 1, a housing 2, a sealing gasket 3, an insulator 4, a power terminal 5 (or socket power terminal), a signal terminal 6 (or socket signal terminal), and an interlocking housing 8. The insulator 4 has a slot 4-4, and the interlocking housing 8 is inserted into the slot 4-4. The power terminal 5 and the signal terminal 6 are both commonly used terminals in this field.

[0035] The assembly relationship of the shielding cover 1, housing 2, sealing gasket 3 and insulator 4 is the same as that of the single-seat sealed socket in the background art. In all cases, the housing 2 is fixed to the equipment panel 7 with bolts to achieve the corresponding two seals, which will not be described in detail here.

[0036] The main difference between the single-seat sealed socket in this invention and the single-seat sealed socket in the prior art is that in the prior art, both the power terminal 5 and the signal terminal 6 are integrally injection molded with the insulator 4 to achieve a seal between the terminal and the insulator 4, which can only meet the requirements for welding out the wires; while in this invention, the signal terminal 6 and / or the power terminal 5 can be configured with corresponding pins, which are integrally injection molded with the insulator 4, and the terminals are installed in the interlock housing 8. Later, after the terminals are crimped and connected to the wires 10, the interlock housing 8 can be installed on the insulator 4, so that the pins are connected to the corresponding terminals, ultimately changing the outgoing wire method and making the single-seat sealed socket suitable for more arrangements of internal components of the equipment.

[0037] In this utility model, there are a total of three basic embodiments, namely: (1) while keeping the power terminal 5 and the insulator 4 integrally injection molded, the signal pin 9 is integrally injection molded with the insulator 4, and the signal terminal 6 is installed on the interlock housing 8 to change the outgoing method of the signal terminal 6; (2) while keeping the signal terminal 6 and the insulator 4 integrally injection molded, the power pin is integrally injection molded with the insulator 4, and the power terminal 5 is installed on the interlock housing 8 to change the outgoing method of the power terminal 5; (3) both the power pin and the signal pin 9 are integrally injection molded with the insulator 4, and the power terminal 5 and the signal terminal 6 are installed on the same (or different) interlock housing 8 to change the outgoing method of the signal terminal 6 and the power terminal 5 at the same time.

[0038] It should be noted that there is no internal channel running through the pin (i.e., the pin is not a cylinder with open ends, which is also called a tube), in order to prevent external contaminants from entering the equipment through the pin.

[0039] The following describes the assembly method of the terminals, interlock housing 8 and insulator 4.

[0040] Reference Figure 3 and Figures 8-9 As shown, the assembly of signal terminal 6, interlock housing 8 and insulator 4 will be described as an example.

[0041] The signal terminal 6 has a spring piece 6-1, and the interlock housing 8 is provided with a limiting hole 8-2 corresponding to the spring piece 6-1. When the interlock housing 8 and the signal terminal 6 are assembled, the spring piece 6-1 is pressed against the inner wall of the interlock housing 8. After the assembly is in place, the spring piece 6-1 springs back and is locked into the limiting hole 8-2 to limit the signal terminal 6 for the first time.

[0042] During the process of inserting the interlock housing 8 into the groove, the limiting protrusion 8-3 at the end of the limiting cantilever 8-4 presses against the groove wall, causing the end of the limiting cantilever 8-4 to move inward and press against the signal terminal 6, thus achieving secondary limiting of the signal terminal 6. At the same time, one end of the signal pin 9 located in the slot 4-4 is inserted into the interlock housing 8 under the guidance of the guide hole 8-1, thereby realizing the connection between the signal pin 9 and the signal terminal 6. After the insertion is in place, the barbs 8-5 of the interlock housing 8 are engaged in the slots 4-3 on the insulator 4 to prevent the interlock housing 8 from retracting.

[0043] When the plug and socket are connected, the plug signal terminal on the plug is connected to the signal pin 9 to enable the signal circuit between the plug and the socket.

[0044] Of course, power terminals 5 can also be installed inside the interlock housing 8, and the power pins and insulator 4 can be integrally injection molded. The assembly method of power terminals 5 and interlock housing 8 is the same as that of signal terminals 6 and interlock housing 8, and will not be described in detail here.

[0045] Figure 3 and Figure 5 The shape of the interlock housing 8 is slightly different, but the installation method of the interlock housing 8 is the same as that of the terminals and insulators 4.

[0046] It should be noted that the installation methods of the interlock housing 8 and the insulator 4, as well as the installation methods of the terminals and the interlock housing 8, are relatively mature existing technologies in the field. Those skilled in the art can also refer to the Chinese invention patent application with publication number CN119764905A for understanding, and will not be elaborated here.

[0047] In this embodiment, a different number of signal terminals 6 and / or power terminals 5 (e.g., one signal terminal 6, two signal terminals 6, one power terminal 5, two power terminals 5, one power terminal 5 and two signal terminals 6, etc.) can be installed in a single interlock housing 8.

[0048] exist Figures 2-9In the illustrated embodiment, there are two power terminals 5 and two signal terminals 6. The direction of the connection between the two power terminals 5 is perpendicular to the direction of the connection between the two signal terminals 6. The signal terminal 6 is located between the two power terminals 5. The two signal terminals 6 are installed in the same interlock housing 8, and the two power terminals 5 are located on opposite sides of the interlock housing 8. Of course, the two signal terminals 6 can also be installed in two separate interlock housings 8.

[0049] In other embodiments, refer to Figures 2-9 As shown, when the power terminal 5 is installed on the interlock housing 8 and the signal terminal 6 is integrally injection molded with the insulator 4, there are two interlock housings 8, which are located on both sides of the signal terminal 6 respectively, and one power terminal 5 is installed in each interlock housing 8.

[0050] Of course, when the number of signal terminals 6 is four, six or more (i.e., when the signal terminals 6 are arranged in groups), at least four signal terminals 6 can also be installed in a single interlock housing 8. Those skilled in the art can set the number of terminals installed in a single interlock housing 8 as needed.

[0051] The following describes the sealing between the pin and insulator 4.

[0052] During the injection molding process of insulator 4 and pin, due to the different materials of pin and insulator 4, there may be gaps at the interface between pin and insulator 4. Even if the gap does not penetrate through insulator 4, the seal between pin and insulator 4 can still be guaranteed.

[0053] In a preferred embodiment, a sealing groove is formed at the end of the slot 4-4 near the pin, and the pin passes through the sealing groove (that is, the end of the pin used to engage with the terminal of the socket is located outside the sealing groove to ensure that the pin can engage with the terminal of the socket). A sealing element is provided in the sealing groove to block the interface between the pin and the insulator 4, thereby achieving a secondary seal between the pin and the insulator 4 and improving the sealing performance of the single-seat sealed socket.

[0054] Reference Figures 2-6 As shown, in a preferred embodiment, the sealing groove is a glue-filling groove 4-1 for glue filling. In the insertion direction, the pin penetrates the glue-filling groove 4-1, and after the glue solidifies, it forms the sealing element (i.e., Figure 6 The rubber block 11 forms a seal, and the pin passes through the rubber block 11 to facilitate the insertion of the pin (signal pin 9 or power pin) by potting. Figure 2 Specifically, this refers to the secondary sealing of the signal pin 9 and the insulator 4.

[0055] To facilitate observation of the amount of glue poured, an observation window 4-2 communicating with the glue-pouring groove 4-1 is provided on the outer surface of the insulator 4, so as to observe the amount of glue poured during the glue-pouring process.

[0056] During the manufacturing process, after the pin and insulator 4 are injection molded, the glue dispensing machine is inserted into the slot 4-4 and glue is poured into the glue dispensing tank 4-1. The amount of glue dispensing is observed through the observation window 4-2 to ensure that the glue can seal the pin and insulator 4 a second time, while ensuring that the pin is not completely covered by glue, so that the pin can still be plugged into the corresponding terminal.

[0057] Of course, the observation window 4-2 can be omitted, and the glue dispensing machine can dispense a fixed amount of glue to ensure that the glue can seal the pin and the insulator 4 a second time, while ensuring that the pin is not completely covered by the glue, so that the pin can still be plugged into the corresponding terminal.

[0058] In another preferred embodiment, the sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the pin, and the sealing ring is squeezed between the pin and the sealing ring mounting groove to achieve a secondary seal between the pin and the insulator 4.

[0059] Each pin can correspond to a sealing ring, for example, in Figure 7 In the embodiment shown, the two signal pins 9 correspond to the first sealing ring 12-1 and the second sealing ring 12-2, respectively. The insulator 4 includes a partition disposed between the two signal pins 9. The partition divides the end of the slot 4-4 near the pin into two sealing grooves.

[0060] When the pins are arranged close together and there are no terminals separating them (e.g.) Figures 2-7 Two signal pins 9 are arranged between two power terminals 5. The insulator 4 may not include a partition, and there is only one sealing groove. All pins pass through the same sealing groove. A sealing gasket is set in the sealing groove as a sealing element. The sealing gasket has a through hole for the pins to pass through. The pins pass through the through hole and are squeezed and sealed with the sealing gasket to achieve a secondary seal between the pins and the insulator 4. At this time, the sealing gasket is equivalent to at least two sealing rings.

[0061] In the third basic embodiment, all pins are secondary sealed with insulator 4, resulting in good sealing performance.

[0062] The following describes the sealing between the terminal and insulator 4.

[0063] In the basic embodiments of (1) and (2), the terminal and the insulator 4 are still integrally injection molded. Since the terminal and the insulator 4 are made of different materials, there may be gaps at the interface between the terminal and the insulator 4. Even if the gap does not penetrate the insulator 4, the seal between the terminal and the insulator 4 can still be guaranteed.

[0064] In a preferred embodiment, the end of the insulator 4 that is used to mate with the plug is defined as the mating end. In the mating direction, the end of the insulator 4 away from the mating end is provided with a sealing groove. The terminal passes through the sealing groove, and a sealing element is provided in the sealing groove to achieve secondary sealing between the terminal and the insulator 4.

[0065] Reference Figure 2 As shown, in a preferred embodiment, the sealing groove is a glue-filling groove 4-1 for glue filling. After the glue solidifies, it forms a seal to realize the terminal (power terminal 5 or signal terminal 6). Figure 2 Specifically, this refers to the secondary sealing of the power terminal 5 and the insulator 4.

[0066] Since the glue potting tank 4-1 is located at the end of the insulator 4 furthest from the mating end, the glue potting situation in the glue potting tank 4-1 can be directly observed to ensure that the glue can seal the terminal and the insulator 4 a second time.

[0067] Of course, the glue dispensing machine can also dispense glue in precise quantities.

[0068] In another preferred embodiment, the sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the terminal, and the sealing ring is squeezed between the terminal and the sealing ring mounting groove to achieve secondary sealing between the terminal and the insulator 4.

[0069] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some technical features, or organically combine different embodiments to create the embodiments shown in the accompanying drawings. Of course, those skilled in the art can also create other embodiments not shown in the accompanying drawings. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A single-seat sealed socket, comprising an insulator (4) and a signal terminal (6), characterized in that, It also includes an interlock housing (8) and a signal pin (9) for insertion into a signal terminal (6). The signal pin (9) and the insulator (4) are integrally injection molded to achieve a one-time seal between the signal pin (9) and the insulator (4). The insulator (4) is provided with a slot (4-4). One end of the signal pin (9) extends into the slot (4-4), and the other end is used to be inserted into the plug signal terminal on the plug. The signal terminal (6) is installed in the interlock housing (8) and is used to be crimped to the wire (10). The interlock housing (8) is inserted into the slot (4-4) so ​​that the signal terminal (6) and the end of the signal pin (9) located in the slot (4-4) are inserted into each other.

2. The single-seat sealed socket as described in claim 1, characterized in that, The slot (4-4) forms a sealing groove at one end near the signal pin (9). A sealing element is provided in the sealing groove. The signal pin (9) passes through the sealing element to block the interface between the signal pin (9) and the insulator (4), thereby achieving a secondary seal between the signal pin (9) and the insulator (4).

3. The single-seat sealed socket as described in claim 2, characterized in that, The sealing groove is a glue-filling groove (4-1) for filling glue. After the glue solidifies, it forms the sealing element mentioned above, so as to achieve secondary sealing between the signal pin (9) and the insulator (4) by filling glue. An observation window (4-2) communicating with the glue-filling groove (4-1) is provided on the outer surface of the insulator (4) so ​​as to observe the amount of glue filling during glue filling.

4. The single-seat sealed socket as described in claim 2, characterized in that, The sealing element is a sealing gasket installed in the sealing groove. The sealing gasket has a through hole for the signal pin (9) to pass through, so as to achieve a secondary seal between the signal pin (9) and the insulator (4).

5. The single-seat sealed socket as described in claim 1, characterized in that, A power terminal (5) is also installed on the insulator (4). The power terminal (5) and the insulator (4) are integrally injection molded to achieve a primary seal between the power terminal (5) and the insulator (4). The end of the insulator (4) used to be inserted with the plug is defined as the insertion end. In the insertion direction, the end of the insulator (4) away from the insertion end is provided with a sealing groove. The power terminal (5) passes through the sealing groove. A sealing element is provided in the sealing groove to achieve a secondary seal between the power terminal (5) and the insulator (4).

6. The single-seat sealed socket as described in claim 1, characterized in that, The single-seat sealed socket also includes a power terminal (5) and a power pin. The power pin and the insulator (4) are integrally injection molded to achieve a one-time seal between the power pin and the insulator (4). One end of the power pin extends into the slot (4-4), and the other end is used to connect with the plug power terminal on the plug. The power terminal (5) is installed in the interlock housing (8) and is used to crimp and connect with the wire (10). When the interlock housing (8) is inserted into the slot (4-4), the power terminal (5) can also connect with the end of the power pin located in the slot (4-4).

7. The single-seat sealed socket as described in claim 6, characterized in that, The slot (4-4) forms a sealing groove near the end of the corresponding pin. A sealing element is provided in the sealing groove. The corresponding pin passes through the sealing element to block the interface between the corresponding pin and the insulator (4) and achieve secondary sealing between the corresponding pin and the insulator (4).

8. The single-seat sealed socket as described in claim 2, 5, or 7, characterized in that, The sealing groove is a glue-filling groove (4-1) for filling glue. After the glue solidifies, it forms a sealing element to achieve secondary sealing between the corresponding pin or power terminal (5) and the insulator (4).

9. The single-seat sealed socket as described in claim 2, 5, or 7, characterized in that, The sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the corresponding pin or power terminal (5), and the sealing ring is squeezed between the corresponding pin or power terminal (5) and the sealing ring mounting groove to achieve secondary sealing between the corresponding pin or power terminal (5) and the insulator (4).

10. A single-seat sealed socket, comprising an insulator (4) and a power terminal (5), characterized in that, It also includes an interlock housing (8) and a power pin for insertion into a power terminal (5). The power pin is integrally injection molded with an insulator (4) to achieve a one-time seal between the power pin and the insulator (4). The insulator (4) is provided with a slot (4-4). One end of the power pin extends into the slot (4-4), and the other end is used to insert into the plug power terminal on the plug. The power terminal (5) is installed in the interlock housing (8) and is used to crimp and connect with the wire (10). The interlock housing (8) is inserted into the slot (4-4) so ​​that the power terminal (5) and the end of the power pin located in the slot (4-4) are inserted into each other.

11. The single-seat sealed socket as described in claim 10, characterized in that, The slot (4-4) forms a sealing groove at one end near the power pin. A sealing element is provided in the sealing groove. The power pin passes through the sealing element to block the interface between the power pin and the insulator (4) and achieve secondary sealing between the power pin and the insulator (4).

12. The single-seat sealed socket as described in claim 11, characterized in that, The sealing groove is a glue-filling groove (4-1) for filling glue. After the glue solidifies, it forms the sealing element mentioned above, so as to achieve secondary sealing between the power pin and the insulator (4) by filling glue. An observation window (4-2) communicating with the glue-filling groove (4-1) is provided on the outer surface of the insulator (4) so ​​as to observe the amount of glue filling during glue filling.

13. The single-seat sealed socket as described in claim 10, characterized in that, Signal terminals (6) are also installed on the insulator (4). The signal terminals (6) and the insulator (4) are integrally injection molded to achieve a primary seal between the signal terminals (6) and the insulator (4). The end of the insulator (4) used to mate with the plug is defined as the mating end. In the mating direction, the end of the insulator (4) away from the mating end is provided with a sealing groove. The signal terminals (6) pass through the sealing groove. A sealing element is provided in the sealing groove to achieve a secondary seal between the signal terminals (6) and the insulator (4).

14. The single-seat sealed socket as described in claim 11 or 13, characterized in that, The sealing groove is a glue-filling groove (4-1) for filling glue. After the glue solidifies, it forms a sealing element to achieve secondary sealing between the corresponding pin or signal terminal (6) and the insulator (4).

15. The single-seat sealed socket as described in claim 11 or 13, characterized in that, The sealing groove is a sealing ring mounting groove, the sealing element is a sealing ring, the sealing ring is fitted on the corresponding pin or signal terminal (6), and the sealing ring is squeezed between the corresponding pin or signal terminal (6) and the sealing ring mounting groove to achieve secondary sealing between the corresponding pin or signal terminal (6) and the insulator (4).

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