A socket, fuse assembly and connector

Abstract

The application provides a socket, a fuse assembly and a connector. The socket comprises a socket shell, a socket shielding structure and a socket terminal. The socket terminal comprises a socket plug terminal. The socket shell is provided with a first cylindrical wall part, a second cylindrical wall part, a third cylindrical wall part, a first external connection interface, a second external connection interface and a third external connection interface. The first external connection interface is located at one end of the first cylindrical wall part and is used for connecting a plug. The socket plug terminal is at least partially located in the enclosed space of the first cylindrical wall part and is used for electrically conducting with the plug terminal of the plug. The second external connection interface is located at one end of the second cylindrical wall part and is used for connecting the fuse assembly with a built-in fuse. The third external connection interface is located at one end of the third cylindrical wall part and is used for leading out a wire or connecting an external device. The fuse assembly can be made into a standard part, thereby solving the problems of no spare parts, high replacement cost, inconvenience and slow replacement speed.

Description

Technical Field

[0001] This application relates to the field of connector technology, specifically to a socket, a fuse assembly, and a connector. Background Technology

[0002] Connectors are electrical components in electrical systems that enable the rapid connection, disconnection, switching, and protection of circuits. They are widely used in the automotive, industrial control, power distribution, and home appliance industries. Connectors include plugs, sockets, fuses, and more.

[0003] In traditional connectors, the fuse is built into the socket. The fuse is inserted into the socket housing through the interface for connecting the plug, and a cover is provided to prevent the fuse from coming out of the interface. When replacing the fuse, the cover needs to be removed. Since the cover is located inside the socket housing, tools need to be inserted into the socket housing to remove it, making fuse replacement inconvenient and slow. Moreover, the cover is relatively small and cannot withstand repeated disassembly and assembly. As a result, when replacing the fuse several times, the cover must be replaced as well, which is costly. Furthermore, the cover cannot be made into a standard part, leading to a shortage of spare parts when replacing the cover.

[0004] Therefore, how to avoid at least one of the aforementioned drawbacks of connectors is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides the following solution: A socket includes a socket housing, a socket shielding structure, and socket terminals. The socket terminals include socket plug terminals. The socket housing has a first cylindrical wall portion, a second cylindrical wall portion, a first external interface, and a second external interface. The first external interface is located at one end of the first cylindrical wall portion and is used to connect a plug. The socket plug terminals are at least partially located within the enclosed space of the first cylindrical wall portion and are used to conduct electricity with the plug terminals. The second external interface is located at one end of the second cylindrical wall portion and is used to connect a fuse assembly with a built-in fuse.

[0006] In one embodiment of the socket, the socket housing is provided with a first latching portion and a second latching portion. The first latching portion and the second latching portion can respectively abut against a first mating portion and a second mating portion on the fuse box of the fuse assembly along the axial direction of the first cylindrical wall portion to achieve latching, so that the fuse box can be disassembled and assembled with the socket housing by moving along the axial direction of the first cylindrical wall portion.

[0007] In one embodiment of the socket, the opening area of ​​the second external interface is larger than the opening area of ​​the first external interface.

[0008] In one embodiment of the socket, the socket terminals include socket outlet terminals. The socket housing is provided with a third cylindrical wall portion and a third external interface. The third external interface is located at one end of the third cylindrical wall portion and is used to connect to an external device. The socket outlet terminals are at least partially located within the enclosed space of the third cylindrical wall portion and are used to conduct electricity with the external device. The axial direction of the first cylindrical wall portion is along a first direction, and the axial directions of the second and third cylindrical wall portions are both along a second direction. Furthermore, the orthographic projections of the enclosed spaces of the second and third cylindrical wall portions onto a projection plane perpendicular to the second direction at least partially overlap. The first and second directions are perpendicular to each other.

[0009] In one embodiment of the socket, the socket further includes a socket interlock terminal, wherein the socket interlock terminal, the socket plug terminal, and the socket outlet terminal are all integrally injection molded with the socket housing.

[0010] A fuse assembly capable of being connected to a socket as described in any of the preceding claims, the fuse assembly being at least partially insertable into the first cylindrical wall portion via a second external interface, the fuse assembly having a built-in fuse that can be connected in series in the positive circuit of the socket.

[0011] In one embodiment of the fuse assembly, a fuse box is included, the fuse being located inside the fuse box. The fuse box is provided with a first mating part and a second mating part, the first mating part and the second mating part being able to engage with a first snap-fit ​​part and a second snap-fit ​​part on the socket housing respectively along the axial direction of the first cylindrical wall portion, so that the fuse box can be disassembled and assembled with the socket housing by moving along the axial direction of the first cylindrical wall portion.

[0012] In one embodiment of the fuse assembly, the fuse assembly includes a snap-fit ​​member, the fuse box has a socket, the snap-fit ​​member is inserted into the socket, the snap-fit ​​member has a third snap-fit ​​portion, the third snap-fit ​​portion can abut against the end of the first mating portion away from the first snap-fit ​​portion along the axial direction of the first cylindrical wall portion to achieve snap-fit.

[0013] In one embodiment of the fuse assembly, the fuse box includes a first box body, a second box body, and a box body sealing ring. The first box body and the second box body are snapped together and sealed between them by the box body sealing ring. The box body sealing ring can be located inside the first cylindrical wall portion and can abut against the inner circumferential surface of the first cylindrical wall portion to achieve a seal between the fuse box and the socket housing. The second box body can be guided to the socket to guide the fuse box to be assembled into the socket along the axial direction of the first cylindrical wall portion.

[0014] In one embodiment of the fuse assembly, the fuse assembly includes a fuse shield, the fuse shield being partially located inside the fuse box to shield the fuse, and the fuse shield being partially located outside the fuse box to connect with the socket shielding structure, so that the sub-shielding cavity formed by the fuse shield and the sub-shielding cavity formed by the socket shielding structure can communicate inside the socket housing to form a total shielding cavity.

[0015] A connector comprising a socket as described in any of the preceding claims, a fuse assembly as described in any of the preceding claims, and a plug, wherein the fuse assembly is partially located outside the socket housing.

[0016] The aforementioned socket has a first cylindrical wall portion and a second cylindrical wall portion on its outer casing. One end of the first cylindrical wall portion serves as the first external interface for connecting the connector, and one end of the second cylindrical wall portion serves as the second external interface for connecting the fuse assembly. For sockets of different specifications, the dimensions of the first external interface differ because different plug specifications need to be connected. However, the dimensions of the second external interface can be designed to be the same. In this way, the external dimensions of the fuse assembly connected to the second external interface are not affected by the socket specifications and can be designed as a standard part, thereby avoiding the problem of not having spare parts when replacing the fuse assembly.

[0017] Furthermore, since the second external interface corresponding to the fuse assembly does not have a plug, there are no plug terminals inside the second cylindrical wall of the fuse assembly. Therefore, even if the fuse assembly is made larger, there will still be space for plug terminals. Making the fuse assembly larger can improve the durability of the fuse assembly 2, ensuring that the fuse box 22 of the fuse assembly can still reliably connect to the socket housing after multiple disassemblies and reassemblies, thus saving the cost of replacing the fuse box of the fuse assembly.

[0018] Furthermore, since the second external interface corresponding to the fuse assembly is not connected to a plug, the fuse assembly extending outside the second cylindrical wall through the second external interface will not affect the connection between the plug and the socket. In this way, the fuse assembly can be removed by directly applying force to the part of the fuse assembly located outside the second cylindrical wall, without having to use tools to reach inside the second cylindrical wall to remove the fuse assembly, making fuse replacement more convenient and quick. Attached Figure Description

[0019] Figure 1 A schematic diagram of a partial structure of one embodiment of the connector provided in this application; Figure 2 for Figure 1 A diagram showing the view from the right. Figure 3 for Figure 1 A top-down view; Figure 4 A three-dimensional diagram showing the socket and fuse assembly in their disassembled state; Figure 5 A three-dimensional diagram showing the socket and fuse assembly in disassembled condition; Figure 6 This is a cross-sectional view of the assembly process of the socket and fuse assembly, at which point the snap-fit ​​components are not yet fully engaged; Figure 7 This is a cross-sectional view of the completed socket and fuse assembly, where the snap-fit ​​components are already in place.

[0020] The annotations in the attached figures are explained as follows: 1. Socket; 11. Socket housing; 11a. First external interface; 11b. Second external interface; 11c. Third external interface; 11d. First snap-fit ​​part; 11e. Second snap-fit ​​part; 11f. First sleeve; 11g. Second sleeve; 12. Socket outlet terminal; 13. Socket plug-in terminal; 14. Socket interlock terminal; 15. First shielding sleeve; 16. Second shielding sleeve; 17. Socket sealing ring. 2. Fuse assembly, 21. Fuse, 21a. Fuse conductive terminal, 22. Fuse box, 221. First box body, 221a. First mating part, 221b. Second mating part, 221c. Socket, 222. Second box body, 223. Box body sealing ring, 23. Inner liner, 24. Snap-fit ​​part, 24a. Third snap-fit ​​part, 25. Fuse shield. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this application, the following description is provided in conjunction with the appendix. Figures 1 to 7 The technical solutions of this application will be further described in detail below with reference to specific embodiments.

[0022] This application provides a socket 1, a fuse assembly 2, and a connector, the connector including the socket 1, the fuse assembly 2, and a plug.

[0023] As shown in the figure, the socket 1 includes at least a socket housing 11, a socket shielding structure, and socket terminals. In the illustrated embodiment, the socket 1 further includes a socket sealing ring 17 for sealing between the socket 1 and an external device.

[0024] The socket terminals include at least socket plug terminals 13. Socket plug terminals 13 are used to make electrical connections with the plug terminals.

[0025] In the illustrated embodiment, the socket terminals also include a socket output terminal 12 and a socket interlock terminal 14. The socket output terminal 12 is used to establish electrical connection with external devices (power supply devices or load devices). Specifically, the socket output terminal 12 can establish electrical connection with external devices via a cable, or it can establish electrical connection with external devices via contact with conductive terminals integrated on the external devices. The socket interlock terminal 14 is used to establish electrical connection with the interlock terminal of the plug, playing a role in preventing mis-insertion, preventing loosening, and preventing non-compliant insertion and removal. It achieves precise alignment and locking between the plug and socket 1, preventing accidental loosening and power loss during use, and avoiding problems such as circuit misconnection and short circuits caused by incorrect insertion or reverse insertion, thereby improving connection stability and usage safety.

[0026] The socket shielding structure is used to shield electromagnetic signals, preventing external electromagnetic signals from interfering with the stability of the internal circuit of socket 1, and also preventing the leakage of internal electromagnetic signals of socket 1 from affecting the stability of surrounding circuits.

[0027] In the illustrated embodiment, the socket shielding structure includes a first shielding sleeve 15 and a second shielding sleeve 16. The first shielding sleeve 15 is at least partially disposed on the inner circumference of the first cylindrical wall portion (described below), and the second shielding sleeve 16 is at least partially disposed on the inner circumference of the third cylindrical wall portion (described below). The socket shielding structure is not limited to the illustrated embodiment; any structure that can achieve the aforementioned shielding effect is acceptable.

[0028] The socket housing 11 has a first cylindrical wall portion, a second cylindrical wall portion, a first external interface 11a, and a second external interface 11b. The first external interface 11a is located at one end of the first cylindrical wall portion. The first external interface 11a is used to connect a plug, and the socket plug terminal 13 is at least partially located within the enclosed space of the first cylindrical wall portion. The second external interface 11b is located at one end of the second cylindrical wall portion, and the second external interface 11b is used to connect a fuse assembly 2 with a built-in fuse 21. This design allows the plug and the fuse assembly 2 to be connected to different interfaces of the socket 1.

[0029] In traditional connectors, both the fuse and the cover plate for the limiting fuse are housed within the same cylindrical wall portion of the socket housing, with one end of this cylindrical wall portion used to connect the plug. For different socket sizes, the cross-sectional dimensions of the cylindrical wall portion's enclosed space need to be designed differently to accommodate different plug sizes. Since the cover plate is located within and connected to the cylindrical wall portion, its dimensions must be adapted to the cross-sectional dimensions of the cylindrical wall portion's enclosed space. Therefore, for different socket sizes, the cover plate must be designed in different sizes and cannot be made into a standard part. When repeated disassembly and reassembly of the cover plate causes a reliable connection between the cover plate and the cylindrical wall portion, the cover plate needs to be replaced. Because the cover plate is not a standard part, there are sometimes problems with the availability of replacement parts when replacement is needed. Furthermore, replacing the fuse requires removing the cover plate. Since the port of the cylindrical wall section where the cover plate is located needs to connect to a plug, the cover plate cannot extend outside the cylindrical wall section (otherwise, the plug cannot be connected). It must be built inside the cylindrical wall section. Therefore, removing the cover plate requires tools to reach inside the cylindrical wall section, making fuse replacement inconvenient and slow. Additionally, the cylindrical wall section where the cover plate is located also needs to house the plug-in terminals. Therefore, the cover plate must be relatively small (otherwise, there would be no space for the plug-in terminals). This results in a weak structure on the cover plate for connecting to the cylindrical wall section. Consequently, after repeated disassembly and reassembly, the cover plate can no longer reliably connect to the cylindrical wall section, requiring replacement and increasing costs.

[0030] The socket 1 provided in this application has a socket housing 11 with a first cylindrical wall and a second cylindrical wall. One end of the first cylindrical wall serves as the first external interface 11a, and one end of the second cylindrical wall serves as the second external interface 11b. The connector provided in this application has its plug connected to the first external interface 11a and its fuse assembly 2 connected to the second external interface 11b. For sockets 1 of different specifications, the dimensions of the first external interface 11a differ because different plug specifications need to be connected. However, the dimensions of the second external interface 11b can be designed to be the same. Thus, the external dimensions of the fuse assembly 2 connected to the second external interface 11b are not affected by the specifications of the socket 1 and can be designed as a standard part, thereby avoiding the problem of not having spare parts when replacing the fuse assembly 2.

[0031] Furthermore, since the second external interface 11b corresponding to the fuse assembly 2 is not connected to a plug, there is no plug-in terminal inside the second cylindrical wall of the fuse assembly 2. Therefore, even if the fuse assembly 2 is made larger, there will still be space for plug-in terminals. Making the fuse assembly 2 larger can improve its durability and ensure that the fuse box 22 of the fuse assembly 2 can still be reliably connected to the socket housing 11 after multiple disassemblies and reassemblies, thus saving the cost of replacing the fuse box 22 of the fuse assembly 2.

[0032] Furthermore, since the second external interface 11b corresponding to the fuse assembly 2 is not connected to a plug, the fact that part of the fuse assembly 2 extends outside the second cylindrical wall through the second external interface 11b will not affect the connection between the plug and the socket 1. In this way, the fuse assembly 2 can be removed by directly applying force to the part of the fuse assembly 2 located outside the second cylindrical wall, without having to use tools to reach inside the second cylindrical wall to remove the fuse assembly 2, making the replacement of the fuse 21 more convenient and quick.

[0033] As can be seen, this application uses one end of the first cylindrical wall of the socket housing 11 as the first external interface 11a for connecting the plug, and one end of the second cylindrical wall of the socket housing 11 as the second external interface 11b for connecting the fuse assembly 2. In this way, the problems of no replacement parts, high replacement cost, and inconvenient and slow replacement are solved at the same time, achieving multiple benefits and unexpected technical effects.

[0034] In the illustrated embodiment, the opening area of ​​the second external interface 11b is larger than the opening area of ​​the first external interface 11a. This allows the fuse assembly 2 connected to the second external interface 11b to be larger in size, thereby improving the durability of the fuse assembly 2 and reducing the frequency of replacement of the fuse box 22, thus reducing replacement costs.

[0035] In the illustrated embodiment, the socket housing 11 is provided with a first latching portion 11d and a second latching portion 11e. The first latching portion 11d and the second latching portion 11e can respectively abut against the first mating portion 221a and the second mating portion 221b on the fuse box 22 of the fuse assembly 2 along the axial direction of the first cylindrical wall to achieve latching. This allows the fuse box 22 to be disassembled and assembled from the socket housing 11 by moving along the axial direction of the first cylindrical wall. In other words, when disassembling and assembling the fuse assembly 2, it is only necessary to move the fuse assembly 2 along the axial direction of the first cylindrical wall to achieve latching or disassembly of the first latching portion 11d and the first mating portion 221a, as well as latching or disassembly of the second latching portion 11e and the second mating portion 221b. This makes disassembly and assembly more convenient. In the figure, the first latching portion 11d is a protruding structure, and the second latching portion 11e is a hole structure. In practice, it is not limited to these, as long as it can abut against the corresponding mating portion along the axial direction of the first cylindrical wall to achieve latching.

[0036] In the illustrated embodiment, the socket housing 11 further includes a third cylindrical wall portion and a third external interface 11c, with the third external interface 11c located at one end of the third cylindrical wall portion. The third external interface 11c is used to connect external devices (power supply devices or load devices). The socket output terminal 12 is at least partially located within the enclosed space of the third cylindrical wall portion. The socket sealing ring 17 is located at the end where the third external interface 11c is located. After the external device is connected to the third external interface 11c, it cooperates with the socket 1 to press the socket sealing ring 17, achieving a seal between the two.

[0037] In the illustrated embodiment, the axial direction of the first cylindrical wall portion is along a first direction, while the axial directions of the second and third cylindrical wall portions are both along a second direction. The enclosed spaces of the second and third cylindrical wall portions at least partially overlap in their orthographic projections onto a projection plane perpendicular to the second direction. The first and second directions are perpendicular to each other. Thus, when the fuse assembly 2 is assembled onto the socket 1 along the first direction, it can partially extend into the third cylindrical wall portion, resulting in a compact and small overall connector structure.

[0038] In the illustrated embodiment, the socket housing 11 is provided with two first sleeves 11f and two second sleeves 11g. The socket 1 is provided with two socket output terminals 12, one positive and one negative. The two socket output terminals 12 are respectively located within the two first sleeves 11f. Parts of the two first sleeves 11f are located within the enclosed space of the third cylindrical wall, and parts extend outside the enclosed space of the third cylindrical wall through the third external interface 11c. The two first sleeves 11f can provide limiting constraints on the socket 1 terminals and the cables or adapter terminals connected to the socket 1 terminals, thereby improving the connection stability between the socket 1 terminals and the cables or adapter terminals. The two socket interlock terminals 14 are respectively partially located within the two second sleeves 11g. Parts of the two second sleeves 11g are located within the enclosed space of the third cylindrical wall, and parts extend outside the enclosed space of the third cylindrical wall through the third external interface 11c. The two second sleeves 11g can provide limiting constraints on the socket interlock terminals 14.

[0039] In some embodiments, the socket terminals and the socket housing 11 are injection molded as a single unit. Injection molding methods include, but are not limited to, overmolding. This eliminates the need for separate socket terminal assembly, improving connector assembly speed and reducing production costs. When the socket terminals include socket insertion terminals 13, socket interlock terminals 14, and socket output terminals 12, these terminals are all injection molded as a single unit with the socket housing 11.

[0040] The fuse assembly 2 and socket 1 provided in this application can be used separately or together. When used together, the fuse assembly 2 is at least partially inserted into the second cylindrical wall of the socket housing 11 through the second external interface 11b. The fuse 21 built into the fuse assembly 2 is connected in series with the positive circuit of the socket 1, and can quickly melt and disconnect the circuit in the event of an overload or short circuit fault, thereby achieving circuit power-off protection and ensuring the safety of electricity use and equipment operation.

[0041] For example, in the illustrated embodiment, the socket 1 has four socket insertion terminals 13, two of which are positive and two are negative. The socket 1 also has two socket output terminals 12, one positive and one negative. The fuse assembly 2 contains two fuses 21, each with two fuse conductive terminals 21a. In the figure, all four fuse conductive terminals are female, but they could also be male. The two negative socket insertion terminals 13 are electrically connected to the negative socket output terminals 12. Each of the two positive socket terminals 13 is connected to and electrically conductive to the two fuse conductive terminals 21a of the two fuses 21. The other two fuse conductive terminals 21a of the two fuses 21 are connected to and electrically conductive to the positive socket output terminal 12, so that the two fuses 21 are connected in series between the two positive socket terminals 13 and the same positive socket output terminal 12.

[0042] It should be noted that the above-mentioned connection method of fuse 21 is only exemplary. Any connection method that enables "fuse 21 to be connected in series in the positive circuit of socket 1" falls within the protection scope of this application.

[0043] In addition, it should be noted that the number of fuses 21 built into the fuse assembly 2 is not limited to two, and can also be one or more.

[0044] In the illustrated embodiment, the fuse assembly 2 includes a fuse box 22, with the fuse 21 located inside the fuse box 22. An inner liner 23 may also be provided inside the fuse box 22 to limit the fuse 21 and prevent it from moving within the box. The fuse box 22 has a first mating part 221a and a second mating part 221b. The first mating part 221a and the second mating part 221b can respectively abut against the first snap-fit ​​part 11d and the second snap-fit ​​part 11e on the socket housing 11 along the axial direction of the first cylindrical wall to achieve snap-fit. This allows the fuse box 22 to be disassembled and assembled with the socket housing 11 by moving along the axial direction of the first cylindrical wall, making disassembly and assembly more convenient and quick. In the figure, the first mating part 221a and the second mating part 221b are both protruding structures, but the actual design is not limited to these; any part that can abut against the corresponding snap-fit ​​part along the axial direction of the first cylindrical wall is acceptable.

[0045] In the illustrated embodiment, the fuse assembly 2 includes a snap-fit ​​member 24. The fuse box 22 has a slot 221c, into which the snap-fit ​​member 24 is inserted. The snap-fit ​​member 24 has a third snap-fit ​​portion 24a, from which... Figure 6 Press down on the latch 24 at the indicated position to make the latch 24 reach the desired position. Figure 7 The location shown Figure 7In this configuration, the third engaging portion 24a abuts against the end of the first mating portion 221a away from the first engaging portion 11d along the axial direction of the first interface to achieve engagement. Under the engagement action of the third engaging portion 24a, the first mating portion 221a will move further closer to the first engaging portion 11d, thereby enabling a tighter engagement with the first engaging portion 11d, improving the connection stability of the fuse assembly 2 and the socket 1, and reducing the risk of them becoming loose.

[0046] In the illustrated embodiment, the fuse box 22 includes a first box body 221, a second box body 222, and a box body sealing ring 223. The first box body 221 and the second box body 222 are snapped together and sealed between them by the box body sealing ring 223.

[0047] The housing sealing ring 223 can be located inside the first cylindrical wall portion and abut against the inner circumferential surface of the first cylindrical wall portion to achieve a seal between the fuse box 22 and the socket housing 11. In this way, the housing sealing ring 223 can seal both the fuse box 22 and the connection position between the fuse box 22 and the socket 1, without the need to provide a separate sealing element at the end of the fuse box 22 to seal the connection position between the fuse box 22 and the socket 1, thus reducing the number of parts and assembly steps.

[0048] The second housing 222 can be guided to the socket 1 to guide the fuse box 22 to be assembled into the socket 1 along the axial direction of the first cylindrical wall. In the figure, the outer peripheral surface of the second housing 222 is guided to the inner peripheral surface of the second shielding sleeve 16 on the inner periphery of the third cylindrical wall, guiding the second housing 222 into the third cylindrical wall, ensuring that the connector structure formed after assembly is compact and small in size.

[0049] In the illustrated embodiment, the fuse assembly 2 includes a fuse shield 25. The fuse shield 25 is partially located inside the fuse box 22 to shield the fuse 21. The fuse shield 25 is also partially located outside the fuse box 22. In the figure, the fuse shield 25 is folded over from the seam between the first box 221 and the second box 222 to the outside of the fuse box 22. The portion of the fuse shield 25 located outside the fuse box 22 can connect with the socket shielding structure, allowing the sub-shielding cavity formed by the fuse shield 25 and the sub-shielding cavity formed by the socket shielding structure to communicate inside the socket housing 11 to form a total shielding cavity. This improves the shielding effect.

[0050] The above description of the structure of socket 1 and fuse assembly 2 also includes the connection structure between socket 1 and fuse assembly 2, as well as the connection structure between socket 1 and plug. The connection structure between socket 1 and plug, and fuse assembly 2 of the connector can be referred to in the above description and will not be repeated here. It should be noted that the connector may include the aforementioned socket 1, fuse assembly 2, and plug, or it may include the aforementioned socket 1 and plug but not the aforementioned fuse assembly 2.

[0051] The above examples illustrate the principles and implementation methods of this application. The descriptions of the embodiments are merely for the purpose of helping to understand the methods and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A socket, characterized in that, The socket (1) includes a socket housing (11), a socket shielding structure, and socket terminals. The socket terminals include socket plug terminals (13). The socket housing (11) is provided with a first cylindrical wall portion, a second cylindrical wall portion, a first external interface (11a), and a second external interface (11b). The first external interface (11a) is located at one end of the first cylindrical wall portion and is used to connect a plug. The socket plug terminal (13) is at least partially located within the enclosed space of the first cylindrical wall portion and is used to conduct electricity with the plug terminals of the plug. The second external interface (11b) is located at one end of the second cylindrical wall portion and is used to connect a fuse assembly (2) with a built-in fuse (21). The socket housing (11) is provided with a first snap-fit ​​portion (11d) and a second snap-fit ​​portion (11e). The first snap-fit ​​portion (11d) and the second snap-fit ​​portion (11e) can respectively abut against the first mating portion (221a) and the second mating portion (221b) on the fuse box (22) of the fuse assembly (2) along the axial direction of the first cylindrical wall to achieve snap-fit, so that the fuse box (22) can be disassembled and assembled with the socket housing (11) by moving along the axial direction of the first cylindrical wall. The opening area of ​​the second external interface (11b) is larger than the opening area of ​​the first external interface (11a); The socket terminal includes a socket outlet terminal (12). The socket housing (11) is provided with a third cylindrical wall portion and a third external interface (11c). The third external interface (11c) is located at one end of the third cylindrical wall portion and is used to connect to an external device. The socket outlet terminal (12) is at least partially located within the enclosed space of the third cylindrical wall portion and is used to conduct electricity with the external device. The axial direction of the first cylindrical wall portion is along a first direction. The axial directions of the second cylindrical wall portion and the third cylindrical wall portion are both along a second direction. Furthermore, the orthographic projections of the enclosed space of the second cylindrical wall portion and the enclosed space of the third cylindrical wall portion on a projection plane perpendicular to the second direction at least partially overlap. The first direction and the second direction are perpendicular to each other.

2. The socket according to claim 1, characterized in that, The socket (1) also includes a socket interlock terminal (14), and the socket interlock terminal (14), the socket plug terminal (13) and the socket outlet terminal (12) are all injection molded together with the socket housing (11).

3. A fuse assembly, characterized in that, It is capable of being connected to the socket (1) according to any one of claims 1-2, wherein the fuse assembly (2) is at least partially capable of being inserted into the first cylindrical wall portion through the second external interface (11b), and the fuse assembly (2) has a built-in fuse (21) which is capable of being connected in series in the positive circuit of the socket (1).

4. The fuse assembly according to claim 3, characterized in that, The fuse assembly (2) includes a fuse box (22), and the fuse (21) is located inside the fuse box (22). The fuse box (22) is provided with a first mating part (221a) and a second mating part (221b). The first mating part (221a) and the second mating part (221b) can respectively abut against the first snap-fit ​​part (11d) and the second snap-fit ​​part (11e) on the socket housing (11) along the axial direction of the first cylindrical wall to achieve snap-fit, so that the fuse box (22) can be disassembled and assembled with the socket housing (11) by moving along the axial direction of the first cylindrical wall.

5. The fuse assembly according to claim 4, characterized in that, The fuse assembly (2) includes a snap-fit ​​member (24), the fuse box (22) is provided with a socket (221c), the snap-fit ​​member (24) is inserted into the socket (221c), the snap-fit ​​member (24) is provided with a third snap-fit ​​part (24a), the third snap-fit ​​part (24a) can abut against the end of the first mating part (221a) away from the first snap-fit ​​part (11d) along the axial direction of the first cylindrical wall to achieve snap-fit.

6. The fuse assembly according to claim 5, characterized in that, The fuse box (22) includes a first box body (221), a second box body (222), and a box body sealing ring (223). The first box body (221) and the second box body (222) are engaged and sealed by the box body sealing ring (223). The box body sealing ring (223) can be located inside the first cylindrical wall portion and can abut against the inner circumferential surface of the first cylindrical wall portion to achieve the sealing between the fuse box (22) and the socket housing (11). The second box body (222) can be guided to cooperate with the socket (1) to guide the fuse box (22) to be assembled on the socket (1) along the axial direction of the first cylindrical wall portion.

7. The fuse assembly according to any one of claims 3-6, characterized in that, The fuse assembly (2) includes a fuse shield (25), which is partially located inside the fuse box (22) to shield the fuse (21). The fuse shield (25) is partially located outside the fuse box (22) so that it can be connected to the socket shielding structure, so that the sub-shielding cavity formed by the fuse shield (25) and the sub-shielding cavity formed by the socket shielding structure can be connected inside the socket housing (11) to form a total shielding cavity.

8. A connector, characterized in that, The device includes a socket (1) as described in any one of claims 1-2, a fuse assembly (2) as described in any one of claims 3-7, and a plug, wherein the fuse assembly (2) is partially located outside the socket housing (11).

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