A straight single seat sealed printed board socket

Abstract

The utility model belongs to the field of electric connector especially is concerned about a kind of straight single seat sealing printed board socket.The utility model provides a kind of straight single seat sealing printed board socket to make printed board socket have self-sealing function, including shell, power terminal, shield cover, inner and outer sealing ring and the insulator mounted on shell, outer sealing ring is used to be extruded between shell and equipment panel, to be used to realize the sealing between shell and equipment panel, inner sealing ring is used to be extruded between insulator and equipment panel, to realize the sealing between insulator and equipment panel, shield cover has the pin for being electrically connected with equipment panel, pin is located between inner and outer sealing ring, power terminal is sheet type terminal, power terminal and insulator integrally injection moulding, to realize the sealing of insulator and power terminal.Through the sealing of the above-mentioned three places, the self-sealing of the printed board socket can be realized, and the pollutants can be prevented from entering the equipment.

Description

Technical Field

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

[0002] In the original technology, a single socket could not achieve self-sealing; sealing could only be achieved when the plug and socket were inserted together.

[0003] For new energy vehicles, only the socket is installed on the vehicle body before the entire vehicle is assembled, without the plug. Therefore, the sealing performance of the socket cannot be guaranteed. There is a risk of water ingress during transportation, installation, or storage, which may affect the electrical performance of the equipment.

[0004] To prevent water ingress into the equipment, a sealing fixture with a sealing function needs to be installed at the socket. However, the sealing mechanism is complex and costly, so there is an urgent need for a socket that can provide an independent sealing function.

[0005] To address the aforementioned issues, Chinese utility model patent CN207490187U, published on June 12, 2018, discloses a waterproof electrical connector socket, which is a self-sealing socket. The socket includes an integrated socket housing, a shielding cover, and terminals. The integrated socket housing comprises a socket outer shell and an insulating mounting plate, with the shielding cover mounted on the outer shell. The insulating mounting plate has mounting holes, shielding pin windows, an outer sealing ring mounting groove, and an inner sealing ring mounting groove. The bottom of the shielding cover has shielding pins that pass through the shielding pin windows to electrically connect with the device panel, thereby grounding the shielding cover. Sealing rings are installed between the outer and inner sealing ring mounting grooves, and the shielding pin windows are positioned between the two sealing rings to prevent water from entering the device through the joint between the insulating mounting plate and the panel, and also to prevent water from entering the device through the shielding pins. Simultaneously, the terminals are used to connect cables, and a sealing plug is provided at the rear of the terminals to prevent water from entering the device through the space between the terminals and the integrated socket housing.

[0006] Based on the three seals mentioned above, the socket can achieve self-sealing. However, on the one hand, the socket housing is a one-piece socket housing, and the entire socket housing needs to be replaced when replacing it; on the other hand, the connector mentioned above is a cable connector, which is not suitable for printed circuit boards.

[0007] In printed circuit board (PCB) sockets, due to space constraints, the power terminals are surface-mount terminals for connection to the PCB. Because the power terminals are surface-mount terminals, the sealing performance is poor when using sealing sleeves to seal the gap between the power terminals and the integrated socket housing. Utility Model Content

[0008] The purpose of this utility model is to provide a straight single-seat sealed printed circuit board socket to solve the technical problem that there is no prefabricated board socket with self-sealing function in the prior art.

[0009] To achieve the above objectives, the technical solution of the vertical single-seat sealed printed circuit board socket provided by this utility model is as follows: A straight single-seat sealed printed circuit board socket includes a housing, power terminals, a shield, an inner sealing ring, and an outer sealing ring. The shield has pins for electrical connection with a device panel, the pins being located between the inner and outer sealing rings. The outer sealing ring is pressed between the housing and the device panel to achieve a seal between the housing and the device panel. The socket also includes an insulator mounted on the housing. The power terminals are surface-mount terminals, integrally injection-molded with the insulator to achieve a seal between the insulator and the power terminals. The inner sealing ring is pressed between the insulator and the device panel to achieve a seal between the insulator and the device panel.

[0010] Furthermore, the insulator is provided with a sealing groove, and a sealing element is provided in the sealing groove to achieve a secondary seal between the insulator and the power terminal.

[0011] Furthermore, the end of the insulator used for mating is defined as the mating end, and the end of the insulator away from the mating end is provided with a potting groove arranged around the power terminal. The potting groove is filled with sealant for secondary sealing of the insulator and the power terminal. The potting groove constitutes a sealing groove, and the rubber ring formed after the sealant solidifies constitutes a sealing element.

[0012] Furthermore, the insulator is provided with a mounting groove, and a sealing ring is installed in the mounting groove, which is pressed between the insulator and the power terminal to achieve a secondary seal; the mounting groove constitutes a sealing groove, and the sealing ring constitutes a sealing element.

[0013] Furthermore, the two ends of the blade terminal are perpendicular to each other, and a twisted portion is formed in the middle of the blade terminal to increase the stopping area between the blade terminal and the insulator in the mating direction.

[0014] Furthermore, the inner and outer sealing rings are connected together by a connecting part to form a sealing gasket. The sealing gasket has a through hole for the pin to pass through, and the through hole is located between the inner and outer sealing rings.

[0015] Furthermore, the sealing gasket includes a gasket body, a stop head, and a connecting post for connecting the gasket body and the stop head. The housing includes a mounting panel for matching the equipment panel. The side wall of the mounting panel is provided with a groove for the connecting post to pass through. The groove width is smaller than the maximum width of the stop head, so as to achieve a fixed connection between the sealing gasket and the housing using the stop head and the connecting post. The stop head is located on the side of the mounting panel away from the gasket body and constitutes a judgment part for determining whether the sealing gasket is missing.

[0016] Furthermore, the housing includes a mounting panel for mating with the device panel, the mounting panel having an observation window at one end near the device panel, and the sealing gasket including an observation portion flush with or partially protruding from the observation window for determining whether the sealing gasket is missing.

[0017] Furthermore, the insulator includes a spring pawl, and the housing is provided with a stop step that matches the spring pawl to prevent the insulator from retracting.

[0018] Furthermore, the insulator has feet for mounting on the device panel to prevent excessive compression of the inner and outer sealing rings.

[0019] Furthermore, a signal pin is also installed on the insulator, which is integrally formed with the insulator. A low-voltage plug is inserted and installed on the insulator. The low-voltage plug includes an interlock housing that is fixed to the insulator and a signal terminal installed in the interlock housing for connecting to the signal pin. The signal terminal is used for crimping to a wire. A potting groove is formed between the insulator and the interlock housing, and the potting groove is filled with sealant for sealing the connection between the insulator and the interlock housing.

[0020] The beneficial effects of the straight single-seat sealed printed circuit board socket provided by this utility model are as follows: This utility model is an improved invention. The main difference between this utility model and the prior art is that the waterproof electrical connector socket in the prior art is a cable connector socket, while the socket in this utility model is a printed circuit board socket.

[0021] In this invention, the socket can be self-sealed by setting three seals, preventing contaminants from entering the equipment, thus eliminating the need for sealing fixtures.

[0022] The first sealing: The outer sealing ring is used to seal the shell and the equipment panel to ensure that contaminants on the outside of the socket mounting surface cannot enter the equipment through the mounting surface; The second sealing: The inner sealing ring is used to seal the insulator and the equipment panel to prevent external contaminants from entering the equipment through the assembly gap at the pin of the shield. The third sealing method involves injection molding the insulator and power terminal together to achieve a seal between them, thus preventing external contaminants from entering the device through the space between the insulator and the power terminal.

[0023] In this invention, the insulator and power terminal can be replaced separately without replacing the housing, which helps to save costs. The injection molding method can easily achieve a seal between the insulator and the power terminal. At the same time, manufacturing the insulator and the housing separately helps to reduce manufacturing difficulty and facilitates processing. Attached Figure Description

[0024] Figure 1 Exploded view of the structure of a vertical single-seat sealed printed circuit board socket; Figure 2 A cross-sectional view of a vertical single-seat sealed printed circuit board socket at one angle; Figure 3 for Figure 2 A schematic diagram of the structure at the pins of the shielding cover; Figure 4 for Figure 1 Schematic diagram of the structure of the central sealing gasket; Figure 5 A schematic diagram of the structure of a straight single-seat sealed printed circuit board socket with a limiting protrusion in the interlock housing; Figure 6 A cross-sectional view of a vertical single-seat sealed printed circuit board socket from another angle; Figure 7 A schematic diagram of the structure of a straight single-seat sealed printed circuit board socket without the housing; Figure 8 A schematic diagram of the structure of a straight single-seat sealed printed circuit board socket after omitting the insulator and terminals; Figure 9 A schematic diagram of the structure of a straight single-seat sealed printed circuit board socket after omitting the insulator and terminals; Figure 10 This is a schematic diagram of the power terminals in a straight single-seat sealed printed circuit board.

[0025] Explanation of reference numerals in the attached figures: 1. Shielding cover; 1-1. Pins; 2. Housing; 2-1. Mounting panel; 3. Sealing gasket; 3-1. Outer sealing ring; 3-2. Inner sealing ring; 3-3. Perforation; 3-4. Mushroom head; 3-5. Observation section; 3-6. Connecting post; 4. Insulator; 4-1. Glue potting groove; 4-2. Spring claw; 4-3. Support foot; 4-4. Guide slope; 5. Interlocking housing; 5-1. Limiting protrusion; 6. Signal terminal; 7. Equipment panel; 8. Power terminal; 8-1. Torsion part. Detailed Implementation

[0026] The core inventive concept of this utility model lies in providing a printed circuit board socket with a self-sealing function.

[0027] The socket achieves self-sealing by sealing the following three points to prevent water from entering the device.

[0028] The first sealing: The outer sealing ring is used to seal the shell and the equipment panel to ensure that contaminants on the outside of the socket mounting surface cannot enter the equipment through the mounting surface; The second sealing: The inner sealing ring is used to seal the insulator and the equipment panel to prevent external contaminants from entering the equipment through the assembly gap at the pin of the shield. The third sealing element: The power terminal is a surface-mount terminal. By integrally injection molding the insulator and the power terminal, a seal is achieved between the insulator and the power terminal to prevent external contaminants from entering the equipment through the space between the insulator and the power terminal.

[0029] The aforementioned three seals enable the socket to have a self-sealing function. Furthermore, the separate manufacturing of the housing and insulator reduces manufacturing difficulty and allows for the individual replacement of the insulator and terminals later.

[0030] The present invention will be further described in detail below with reference to the embodiments.

[0031] An embodiment of the vertical single-seat sealed printed circuit board socket provided by this utility model: like Figures 1-10 As shown, as a basic embodiment, the straight single-seat sealed printed circuit board socket (hereinafter referred to as the printed circuit board socket) includes a housing 2, an insulator 4, a power terminal 8, a signal terminal 6, a shield 1, an inner sealing ring 3-2 and an outer sealing ring 3-1. The insulator 4 is manufactured separately from the housing 2, and the insulator 4 is mounted on the housing 2.

[0032] The outer sealing ring 3-1 is pressed between the housing 2 and the device panel 7 to achieve a seal between the housing 2 and the device panel 7; the inner sealing ring 3-2 is pressed between the insulator 4 and the device panel 7 to achieve a seal between the insulator 4 and the device panel 7; the shield 1 has a pin 1-1 for electrical connection with the device panel 7, and the pin 1-1 is located between the inner and outer sealing rings; the power terminal 8 is a surface terminal, and the power terminal 8 and the insulator 4 are integrally injection molded to achieve a seal between the insulator 4 and the power terminal 8; the insulator 4 is also sealed to the signal terminal 6.

[0033] Preferably, in one embodiment, such as Figure 10 As shown, the two ends of the plate terminal (i.e., power terminal 8) are perpendicular to each other, and a torsion portion 8-1 is formed in the middle of the plate terminal to increase the stopping area between the plate terminal and the insulator 4 in the mating direction. During the plug and socket mating process, the torsion portion 8-1 and the insulator 4 have sufficient stopping area in the mating direction, thereby ensuring that the power terminal 8 and the insulator 4 will not loosen and avoiding gaps between the power terminal 8 and the insulator 4 due to loosening.

[0034] In other embodiments, the power terminal 8 may also be flat (i.e., not twisted). During the plug-socket insertion process, the insulator 4 applies a limiting force to the power terminal 8 through the mating surface with the power terminal 8 to prevent relative movement between the power terminal 8 and the insulator 4.

[0035] After the socket is assembled, pin 1-1 of the shield 1 is held by the contact claw of the housing 2 and the support part of the insulator 4, and pin 1-1, the contact claw, and the aforementioned support part pass through the gap between the inner sealing ring 3-2 and the outer sealing ring 3-1 (in Figures 1-6 In the middle, the number of pins 1-1 and the number of holes 3-3 are both four, so that pins 1-1 can contact the device panel 7 of the device (e.g., vehicle body equipment), thereby so that the shield 1 and the device share the ground.

[0036] After the socket is installed on the device, it can achieve three seals, which are described in detail below.

[0037] The first seal: ensuring a seal between the socket and the equipment mounting surface (the end face of the equipment panel 7 near the housing 2). Specifically, an outer sealing ring 3-1 is used to achieve a seal between the housing 2 and the equipment panel 7, ensuring that contaminants on the outside of the socket mounting surface (the side of the socket used to mate with the equipment mounting surface) cannot enter the socket through the space between the two mounting surfaces.

[0038] The second sealing layer ensures that external contaminants cannot enter the equipment through the socket. Specifically, after the shielding cover 1, insulator 4, and housing 2 are assembled, there is an assembly gap between the shielding cover 1 and insulator 4 and housing 2. External contaminants can reach the equipment panel 7 through this assembly gap. By sealing the space between the insulator 4 and the equipment panel 7, external contaminants can be prevented from entering the equipment through the space between the insulator 4 and the equipment mounting surface.

[0039] The third seal: the power terminal 8 is a surface mount terminal, which is rotated 90° inside the insulator 4. That is, the end of the surface mount terminal used for mating is perpendicular to the end of the surface mount terminal used for connecting to the printed circuit board. By injection molding the insulator 4 and the power terminal 8 as a single piece, a seal is achieved between the insulator 4 and the power terminal 8. The signal terminal 6 is also sealed to the insulator 4 to prevent external contaminants from entering the device through the space between the insulator 4 and the terminal.

[0040] The signal terminal 6 can be integrally injection molded with the insulator 4 to achieve a seal between the signal terminal 6 and the insulator 4; alternatively, a sealing ring can be provided between the signal terminal 6 and the insulator 4 to achieve a seal between the signal terminal 6 and the insulator 4.

[0041] The three seals mentioned above enable the socket to have a self-sealing function. Furthermore, the housing 2 and the insulator 4 are manufactured separately, which reduces manufacturing difficulty and allows for the individual replacement of the insulator 4 and terminals later.

[0042] Since the power terminal 8 is a surface-mount terminal, during the injection molding process, when the insulator 4 cools and shrinks, a small gap may appear between the power terminal 8 and the insulator 4 (especially when the power terminal 8 includes the torsion part 8-1). Theoretically, as long as the gap does not penetrate the entire insulator 4, the gap will not cause external contaminants to enter the equipment.

[0043] like Figures 1-2 As shown, in order to further improve the sealing effect between the power terminal 8 and the insulator 4, in a preferred embodiment, as... Figure 2 As shown, the end of the insulator 4 used for mating is defined as the mating end. The end of the insulator 4 away from the mating end is provided with a potting groove 4-1 arranged around the power terminal 8. The potting groove 4-1 is filled with sealant for sealing the insulator 4 and the power terminal 8, so as to perform a secondary seal between the insulator 4 and the power terminal 8 through the sealant.

[0044] In other embodiments, a sealing ring can also be used to achieve secondary sealing. For example, the insulator 4 is provided with a mounting groove, and a sealing ring is installed in the mounting groove, which is pressed between the insulator 4 and the power terminal 8 to achieve secondary sealing between the insulator 4 and the power terminal 8.

[0045] By setting a sealing groove (glue filling groove 4-1 or mounting groove) on the insulator 4 and setting a sealing element (glue ring or sealing ring after the sealant has solidified) in the sealing groove, a secondary seal is achieved between the insulator 4 and the power terminal 8, thereby ensuring that external contaminants do not enter the equipment from between the terminal and the insulator 4.

[0046] The following describes the installation method of the inner sealing ring 3-2 and the outer sealing ring 3-1.

[0047] In one embodiment, referring to the utility model patent with authorization announcement number CN207490187U, sealing ring mounting grooves can be provided on both the housing 2 and the insulator 4, and the inner sealing ring 3-2 and the outer sealing ring 3-1 can be installed in different sealing ring mounting grooves respectively.

[0048] In another embodiment, such as Figures 1-9 As shown, the inner sealing ring 3-2 and the outer sealing ring 3-1 are connected together by a connecting part to form a sealing gasket 3. The sealing gasket 3 has a through hole 3-3 for the pin 1-1 to pass through. The through hole 3-3 is located between the inner sealing ring 3-2 and the outer sealing ring 3-1. The portion between the inner sealing ring 3-2 and the outer sealing ring 3-1, excluding the through hole 3-3, constitutes the connecting part. The inner sealing ring 3-2 can prevent contaminants from flowing from inside the socket through the through hole 3-3 to the device panel 7.

[0049] Preferably, such as Figures 1-9As shown, the sealing gasket 3 includes a gasket body, a stop head, and a connecting post 3-6 for connecting the gasket body and the stop head. The gasket body includes the inner sealing ring 3-2, the outer sealing ring 3-1, and a through hole 3-3. The housing 2 includes a mounting panel 2-1 for matching the equipment panel 7. The side wall of the mounting panel 2-1 is provided with a groove for the connecting post 3-6 to pass through. The groove width is smaller than the maximum width of the stop head (refer to...). Figure 9 (For understanding), the sealing gasket 3 and the housing 2 are fixedly connected using a stop head and connecting post 3-6; the stop head is located on the side of the mounting panel 2-1 away from the gasket and constitutes a judgment part for determining whether the sealing gasket 3 is missing. The stop head can be a mushroom head 3-4, a cylindrical head, a cuboid head, or other structures.

[0050] When installing the socket on the equipment panel 7, it is easy to determine whether the sealing gasket 3 is missing by observing the judgment part (stop head). The sealing gasket 3 integrates the inner sealing ring 3-2 and the outer sealing ring 3-1. After the sealing gasket 3 is installed on the housing 2 using the stop head and the connecting post 3-6, the inner sealing ring 3-2 and the outer sealing ring 3-1 can be pre-fixed with the housing 2, which facilitates the later installation of the socket on the equipment panel 7 and makes assembly easier.

[0051] In one embodiment, sealing ring mounting grooves can still be provided on the insulator 4 and the housing 2. In this case, after the socket is installed, only the housing 2, the stop head, and the connecting posts 3-6 can be seen from the outside.

[0052] In another embodiment, sealing ring mounting grooves can still be provided on the insulator 4 and the housing 2; however, the mounting panel 2-1 is provided with an observation window at one end near the device panel 7, and the sealing gasket 3 includes components flush with the observation window. Figures 8-9 The observation section 3-5, which is flush with or partially exposed through the observation window, is used to determine whether the sealing gasket 3 is missing.

[0053] After installing the socket on the device panel 7, you can also check through the viewing window whether the sealing gasket 3 is missing.

[0054] Of course, in other embodiments, the sealing ring mounting groove may not be provided on the insulator 4 and the housing 2. In this case, in order to avoid the sealing ring being over-compressed, on the one hand, since the housing 2 is mounted on the equipment panel 7 by bolts, the compressive force on the sealing ring can be controlled by using a torque-controlled mounting bolt to avoid the sealing ring being over-compressed; on the other hand, the insulator 4 can also have a support foot 4-3 for pressing against the equipment panel 7 to limit the maximum degree of compression of the sealing ring and avoid the inner sealing ring 3-2 and the outer sealing ring 3-1 being over-compressed.

[0055] The following explains the specific installation method for the socket.

[0056] like Figures 1-9 As shown, in one embodiment, the insulator 4 includes a spring claw 4-2, and the housing 2 has a stop step that matches the spring claw 4-2 to prevent the insulator 4 from retracting; the mounting panel 2-1 of the housing 2 has a bolt hole for a bolt to pass through to mount the housing 2 onto the device panel 7; in the mating direction of the connector, the housing 2 has a pressing portion for pressing the shield 1 and the insulator 4 against the device panel 7; the sealing gasket 3 has a clearance notch for avoiding bolts passing through the bolt hole. Figure 4 The four corners of the central sealing gasket 3 have the aforementioned clearance notches.

[0057] During installation, firstly, the housing 2, insulator 4, sealing gasket 3, and shielding cover 1 are fixed together. The sealing gasket 3 has four mushroom heads 3-4 for connecting the housing 2 and the sealing gasket 3. During the assembly of the insulator 4 onto the housing 2, the stop step and spring claw 4-2 are used to ensure that the insulator 4 will not move backward. The pressing part cooperates with the pressing part of the insulator 4 to ensure that the insulator 4 cannot move forward, thereby ensuring that the housing 2, shielding cover 1, and insulator 4 are fixedly connected. Then, the housing 2 is installed onto the equipment panel 7 using bolts, thereby completing the installation of the socket.

[0058] Preferably, such as Figure 6 As shown, the housing 2 is also provided with a guide ramp 4-4 for guiding the movement of the pawl 4-2 during the installation of the insulator 4 and the housing 2, so as to facilitate the assembly of the housing 2 and the insulator 4.

[0059] In one embodiment, the signal terminal 6 is integrally injection molded with the insulator 4 or sealed by a sealing ring, which can only meet the requirements for the wire exit method of welding. Due to the length limitation of the signal terminal 6, the arrangement position of the internal components of the equipment is required to be high.

[0060] To avoid the limitations of socket size affecting socket use and improve socket practicality, in a preferred embodiment, unlike the above embodiments, a signal pin is installed on the insulator 4. The signal pin is integrally formed with the insulator 4 to achieve a one-time seal, preventing external contaminants from entering the device. A low-voltage plug is inserted and installed on the insulator 4. The low-voltage plug includes an interlocking housing 5 that is inserted and fixed to the insulator 4 and a signal terminal 6 installed in the interlocking housing 5 for connecting to the signal pin. The signal terminal 6 is used for crimping and connecting to a wire to realize the connection between the internal components of the device and the signal terminal 6.

[0061] Preferably, such as Figure 2As shown, the end of the interlock housing 5 used for insertion is thinner than the rest, so that there is an annular gap between the end of the interlock housing 5 used for insertion and the insulator 4. The part of the insulator 4 used to mate with the interlock housing 5 is provided with an annular groove. The annular groove and the annular gap constitute a potting groove 4-1 located between the insulator 4 and the interlock housing 5. The potting groove 4-1 is filled with sealant for sealing the connection between the insulator 4 and the interlock housing 5 to achieve secondary sealing.

[0062] Among them, such as Figure 5 As shown, the signal terminal 6 is provided with a spring clip, and the interlock housing 5 is provided with a window that matches the spring clip to fix the spring clip on the interlock housing 5, so as to realize the primary fixation of the signal terminal 6 and the interlock housing 5; the interlock housing 5 is provided with barbs, and the insulator 4 is provided with a groove that matches the barbs, so as to realize the fixation of the interlock housing 5 and the insulator 4; the interlock housing 5 is also provided with a spring arm and a limiting protrusion 5-1 located at the end of the spring arm. The interlock housing 5 and the insulator 4 are interference-fitted, and the limiting protrusion 5-1 presses against the insulator 4 and drives the spring arm to deform so that the spring arm presses against the signal terminal 6, thereby realizing the secondary fixation of the signal terminal 6 and the interlock housing 5.

[0063] 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 straight single-seat sealed printed circuit board socket, comprising a housing (2), power terminals (8), a shield (1), an inner sealing ring (3-2), and an outer sealing ring (3-1), the shield (1) having pins (1-1) for electrical connection with a device panel (7), the pins (1-1) being located between the inner and outer sealing rings, the outer sealing ring (3-1) being pressed between the housing (2) and the device panel (7) to achieve a seal between the housing (2) and the device panel (7), characterized in that, It also includes an insulator (4) mounted on the housing (2), a power terminal (8) being a chip terminal, and the power terminal (8) and the insulator (4) being integrally injection molded to achieve a seal between the insulator (4) and the power terminal (8). An inner sealing ring (3-2) is used to be pressed between the insulator (4) and the device panel (7) to achieve a seal between the insulator (4) and the device panel (7).

2. The vertical single-seat sealed printed circuit board socket as described in claim 1, characterized in that, The insulator (4) is provided with a sealing groove, and a sealing element is provided in the sealing groove to achieve secondary sealing between the insulator (4) and the power terminal (8).

3. The vertical single-seat sealed printed circuit board socket as described in claim 2, characterized in that, The end of the insulator (4) used for mating is defined as the mating end. The end of the insulator (4) away from the mating end is provided with a potting groove (4-1) arranged around the power terminal (8). The potting groove (4-1) is filled with sealant for secondary sealing of the insulator (4) and the power terminal (8). The potting groove (4-1) constitutes a sealing groove, and the rubber ring formed after the sealant solidifies constitutes a sealing element.

4. The vertical single-seat sealed printed circuit board socket as described in claim 2, characterized in that, An mounting groove is provided on the insulator (4), and a sealing ring is installed in the mounting groove, which is pressed between the insulator (4) and the power terminal (8) to achieve secondary sealing; the mounting groove constitutes a sealing groove, and the sealing ring constitutes a sealing element.

5. The vertical single-seat sealed printed circuit board socket as described in any one of claims 1 to 4, characterized in that, The two ends of the blade terminal are perpendicular to each other, and a twisted portion (8-1) is formed in the middle of the blade terminal to increase the stopping area between the blade terminal and the insulator (4) in the mating direction.

6. The vertical single-seat sealed printed circuit board socket as described in any one of claims 1 to 4, characterized in that, The inner sealing ring (3-2) and the outer sealing ring (3-1) are connected together by a connecting part to form a sealing gasket (3). The sealing gasket (3) has a through hole (3-3) for the pin (1-1) to pass through. The through hole (3-3) is located between the inner sealing ring (3-2) and the outer sealing ring (3-1).

7. The vertical single-seat sealed printed circuit board socket as described in claim 6, characterized in that, The sealing gasket (3) includes a gasket body, a stop head, and a connecting post (3-6) for connecting the gasket body and the stop head. The housing (2) includes a mounting panel (2-1) for matching the equipment panel (7). The side wall of the mounting panel (2-1) is provided with a groove for the connecting post (3-6) to pass through. The groove width is less than the maximum width of the stop head, so as to achieve a fixed connection between the sealing gasket (3) and the housing (2) by using the stop head and the connecting post (3-6). The stop head is located on the side of the mounting panel (2-1) away from the gasket body and constitutes a judgment part for determining whether the sealing gasket (3) is missing.

8. The vertical single-seat sealed printed circuit board socket as described in claim 6, characterized in that, The housing (2) includes a mounting panel (2-1) for matching the device panel (7), the mounting panel (2-1) having an observation window at one end near the device panel (7), and the sealing gasket (3) including an observation part (3-5) flush with or partially protruding from the observation window for determining whether the sealing gasket (3) is missing.

9. The vertical single-seat sealed printed circuit board socket as described in any one of claims 1 to 4, characterized in that, The insulator (4) includes a pawl (4-2), and the housing (2) is provided with a stop step that matches the pawl (4-2) to prevent the insulator (4) from retracting.

10. The vertical single-seat sealed printed circuit board socket as described in any one of claims 1 to 4, characterized in that, The insulator (4) has feet (4-3) for mounting on the device panel (7) to prevent the inner seal (3-2) and outer seal (3-1) from being over-compressed.

11. The vertical single-seat sealed printed circuit board socket as described in any one of claims 1 to 4, characterized in that, Signal pins are also installed on the insulator (4). The signal pins are integrally formed with the insulator (4). Low-voltage plugs are installed on the insulator (4). The low-voltage plugs include an interlock housing (5) that is fixed to the insulator (4) and a signal terminal (6) installed in the interlock housing (5) for connecting to the signal pin. The signal terminal (6) is used to connect to the wire by crimping. A potting groove (4-1) is formed between the insulator (4) and the interlock housing (5). The potting groove (4-1) is filled with sealant for sealing the connection between the insulator (4) and the interlock housing (5).

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