A socket and battery pack

Abstract

The utility model relates to the technical field of connector, specifically relate to a socket and battery pack. The battery pack includes battery pack casing and the socket fixed on the side wall of battery pack casing, and the socket includes socket casing and shield cover, and the socket casing has the installation surface, and the shield cover has the shield wear department, and the socket casing is equipped with the shield perforation from its inner chamber to the installation surface, and the shield wear department is worn in the shield perforation, and the end of shield wear department is equipped with the shield contact part for contacting equipment casing in the side of shield wear department wear to the installation surface, and the installation surface is equipped with the sealing ring around the socket center line, and the ring body of sealing ring is equipped with the ring -like around department, and the around department ring is equipped in the periphery of shield wear department to be used for the equipment casing to form the seal to shield wear department through the part of socket casing, one sealing ring can realize the seal of socket casing installation surface periphery a circle and shield perforation place, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a socket and battery pack. Background Technology

[0002] Pure electric commercial vehicles have large battery capacities and various battery configurations. To meet the battery capacity requirements of different models, commercial vehicles design battery packs as standard packs with different cell capacities. These standard battery packs do not contain contactors, and the battery input and output circuits are always energized. The input and output interfaces of the battery packs mostly use quick-connect connectors. The socket is installed on the side wall of the battery pack housing, and the plug connects to the cable. The plug and socket are mated together to connect the circuit. To prevent electromagnetic interference, the connector terminals are surrounded by a shielding structure. The plug's shielding structure is connected to the cable's shielding layer, and the socket's shielding structure is connected to the side wall of the battery pack housing. After the plug and socket are mated, their shielding structures make contact and conduct electricity.

[0003] A power connector socket disclosed in Chinese utility model patent CN219268059U includes a housing, a sealing ring, and a shielding cover. The shielding cover is the shielding structure of the socket, and the housing is the socket shell. A rectangular connecting plate is provided at the rear of the housing. The connecting plate has fixing holes for fixing the socket to the side wall of the corresponding battery box with bolts. The rear end face of the connecting plate forms the mounting surface. The shielding cover is installed in the inner cavity of the housing. The rear end of the shielding cover has a contact piece that extends from the mounting surface to the rear of the housing. The contact piece is electrically connected to the metal battery box after the socket is fixed to the battery box. The sealing ring is installed on the mounting surface at the rear of the housing and surrounds the pin terminals inside the housing. The sealing ring can fit tightly with the side wall of the battery box to achieve a sealing effect.

[0004] The sealing ring on the mounting surface of the aforementioned socket is used to seal the interface between the socket and the battery box sidewall. The sealing ring is located on the outer periphery of the portion of the shielding cover that protrudes from the outer shell's mounting surface, preventing external water from entering the device through the gap between the socket shell and the battery box sidewall. In scenarios with high sealing requirements, in addition to preventing external water from entering through the gap between the socket shell and the battery box sidewall, it is also required that, if the seal at the plug-socket mating interface fails, external water cannot enter the device through the socket's internal cavity via the socket head. In other words, the socket should have a single-unit sealing function. Since the shielding cover has a portion that protrudes from the socket shell, and the corresponding shell has perforations, currently, two sealing rings, inner and outer, are used on the mounting surface of the socket shell to seal these perforations. The perforations on the socket shell are located between the inner and outer sealing rings, ensuring that external water cannot enter the socket through the perforations on the shell, and that, if the seal at the plug-socket mating interface fails, external water cannot enter the device through the perforations via the socket head. However, this structure using two sealing rings requires separate fabrication of the two rings, resulting in higher costs, inconvenient installation, and a larger footprint, which is not conducive to reducing the socket size. Utility Model Content

[0005] The purpose of this utility model is to provide a socket that solves the problem of high cost associated with the current socket structure that uses two sealing rings to seal the part of the shielding cover protruding from the shell; the purpose of this utility model is also to provide a battery pack that solves the above problems.

[0006] The technical solution of the socket of this utility model is as follows:

[0007] A socket includes a socket housing and a shield installed inside the socket housing. The socket housing has a mounting surface for abutting against a device housing. The shield has a shielding protrusion. The socket housing has a shielding perforation extending from its inner cavity to the mounting surface. The shielding protrusion passes through the shielding perforation, and the end of the shielding protrusion extending to the mounting surface has a shielding contact portion for contacting the device housing. A sealing ring is provided on the mounting surface, which surrounds the center line of the socket for sealing with the device housing. The sealing ring has a ring-shaped circumferential portion, which corresponds one-to-one with the shielding protrusion. The circumferential portion surrounds the outer periphery of the shielding protrusion to cooperate with the device housing to form a seal at the part where the shielding protrusion passes through the socket housing.

[0008] Beneficial effects: This utility model modifies the elements of the socket in the existing technology, setting the sealing ring at the installation interface between the socket and the equipment housing as a structure with a partial ring on the whole ring. The sealing ring surrounding the center line of the socket forms a seal between the mounting surface of the socket housing and the equipment housing to the outside. The partial sealing ring surrounding the shielding through-hole of the shielding cover forms a seal to the inside of the socket. Thus, after the socket is fixedly installed on the corresponding equipment housing, the shielding contact part of the shielding cover is conductive to the equipment housing, and the sealing ring on the mounting surface of the socket housing presses against the equipment housing to form a seal. One sealing ring can achieve a seal around the outer edge of the mounting surface of the socket housing and a seal at the shielding through-hole. Compared with using two sealing rings, one inside and one outside, the sealing ring installation structure can be simplified and costs can be saved.

[0009] Furthermore, the width of the portion surrounding the sealing ring is greater than the width of the remaining portion, and this width direction is perpendicular to the centerline direction of the sealing ring.

[0010] Furthermore, the surrounding portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring, with the width of the inner portion being smaller than the width of the outer portion.

[0011] Furthermore, the sealing ring is provided with raised ribs protruding along its center line, and the number of raised ribs on the inner part of the surrounding portion is less than the number of raised ribs on the outer part.

[0012] Furthermore, the sealing ring is provided with a protruding post that protrudes perpendicular to the center line of the sealing ring, and the mounting surface is provided with an exposed groove for the protruding post to be inserted. The exposed groove has a side opening on the outer side of the socket housing for the protruding post to be exposed.

[0013] Furthermore, the protruding post is provided on the portion of the sealing ring located between two adjacent surrounding portions.

[0014] Furthermore, the mounting surface is provided with a sealing groove for installing a sealing ring, and the sealing groove is connected to the shielding perforation.

[0015] Furthermore, the surrounding portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring, and the sealing groove has an inner groove portion for mounting the inner portion and an outer groove portion for mounting the outer portion, the inner groove portion communicating with the corresponding shielding perforation.

[0016] Furthermore, a boss is provided in the sealing groove at the position corresponding to the shielding perforation. The surrounding part is sleeved around the boss and the shielding protrusion. The shielding protrusion is located inside the boss. The shielding contact part is a spring claw that is turned outward relative to the shielding protrusion. The boss is used to support the spring claw after it abuts against the equipment housing.

[0017] The technical solution of the battery pack of this utility model is as follows:

[0018] A battery pack includes a battery pack housing and a socket fixedly mounted on the side wall of the battery pack housing. The battery pack constitutes a device with the socket installed. The socket includes a socket housing and a shield installed in the inner cavity of the socket housing. The socket housing has a mounting surface for abutting against the device housing. The shield has a shielding protrusion. The socket housing has a shielding perforation extending from its inner cavity to the mounting surface. The shielding protrusion passes through the shielding perforation, and the end of the shielding protrusion extending to the mounting surface has a shielding contact portion for contacting the device housing. A sealing ring is provided on the mounting surface, which surrounds the center line of the socket for sealing with the device housing. The sealing ring has a ring-shaped circumferential portion, which corresponds one-to-one with the shielding protrusion. The circumferential portion surrounds the outer periphery of the shielding protrusion to cooperate with the device housing to form a seal at the part where the shielding protrusion passes through the socket housing.

[0019] Beneficial effects: This utility model modifies the elements of the socket installed on the battery pack housing in the existing technology. The sealing ring at the installation interface between the socket and the equipment housing is set as a structure with a partial ring on the whole ring. The sealing ring around the center line of the socket forms a seal to the outside between the mounting surface of the socket housing and the equipment housing. The partial sealing ring around the shielding through-hole of the shielding cover forms a seal to the inside of the socket. In this way, after the socket is fixedly installed on the corresponding equipment housing, the shielding contact part of the shielding cover is conductive to the equipment housing, and the sealing ring on the mounting surface of the socket housing presses against the equipment housing to form a seal. One sealing ring can achieve a seal around the outer edge of the mounting surface of the socket housing and a seal at the shielding through-hole. Compared with using two sealing rings with inner and outer rings, the sealing ring installation structure can be simplified and costs can be saved.

[0020] Furthermore, the width of the portion surrounding the sealing ring is greater than the width of the remaining portion, and this width direction is perpendicular to the centerline direction of the sealing ring.

[0021] Furthermore, the surrounding portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring, with the width of the inner portion being smaller than the width of the outer portion.

[0022] Furthermore, the sealing ring is provided with raised ribs protruding along its center line, and the number of raised ribs on the inner part of the surrounding portion is less than the number of raised ribs on the outer part.

[0023] Furthermore, the sealing ring is provided with a protruding post that protrudes perpendicular to the center line of the sealing ring, and the mounting surface is provided with an exposed groove for the protruding post to be inserted. The exposed groove has a side opening on the outer side of the socket housing for the protruding post to be exposed.

[0024] Furthermore, the protruding post is provided on the portion of the sealing ring located between two adjacent surrounding portions.

[0025] Furthermore, the mounting surface is provided with a sealing groove for installing a sealing ring, and the sealing groove is connected to the shielding perforation.

[0026] Furthermore, the surrounding portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring, and the sealing groove has an inner groove portion for mounting the inner portion and an outer groove portion for mounting the outer portion, the inner groove portion communicating with the corresponding shielding perforation.

[0027] Furthermore, a boss is provided in the sealing groove at the position corresponding to the shielding perforation. The surrounding part is sleeved around the boss and the shielding protrusion. The shielding protrusion is located inside the boss. The shielding contact part is a spring claw that is turned outward relative to the shielding protrusion. The boss is used to support the spring claw after it abuts against the equipment housing. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of an embodiment of the battery pack of this utility model;

[0029] Figure 2 for Figure 1 A diagram showing the plug and socket connections.

[0030] Figure 3 for Figure 2 A diagram of the socket in the diagram;

[0031] Figure 4 for Figure 2 A schematic diagram of the plug in the diagram;

[0032] Figure 5 for Figure 2 A cross-sectional view of the socket and plug in their plugged-in state;

[0033] Figure 6 for Figure 2 A schematic diagram showing the rear view of the socket in the diagram;

[0034] Figure 7 for Figure 5 A schematic diagram of the shielding cover in the diagram;

[0035] Figure 8 for Figure 6 A schematic diagram of the interface sealing ring.

[0036] In the diagram: 100, Battery pack housing; 101, Socket; 11, Socket housing; 12, Socket cavity; 13, Power terminal; 14, Signal terminal; 15, Shielding cover; 151, Main cylinder; 152, Outward flange; 153, Shielding protrusion; 154, Shielding contact; 16, Socket protrusion; 17, Interface sealing ring; 171, Surrounding part; 1711, Inner part; 1712, Outer part; 172, Protrusion; 18, Mounting surface; 19, Fixing plate; 110, Boss;

[0037] 102. Plug; 21. Power pin; 22. Interlocking shorting terminal; 23. Plug center recess; 24. Plug outer ring cavity; 25. Plug shielding contact claw. Detailed Implementation

[0038] The basic concept of the socket on the battery pack of this utility model is to set the sealing ring of the installation interface between the socket and the device housing as a structure with a partial ring on the whole ring. One sealing ring can achieve sealing to the outside and sealing of the part of the inner shield of the socket that passes through the housing, which can simplify the installation structure of the sealing ring and save costs.

[0039] The technical solution of this utility model will be described in detail below with reference to specific embodiments.

[0040] Embodiments of the battery pack of this utility model:

[0041] To facilitate understanding, the main structure of the battery pack and its connector on the casing of this utility model will be described first. For example... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the battery pack includes a battery pack housing 100 and battery modules disposed within the battery pack housing 100. The side wall of the battery pack housing 100 is the shell side wall, and a socket 101 is fixedly installed on the side wall of the battery pack housing 100. This socket 101 is adapted to be paired with a plug 102. The plug and socket are quick-connect connectors. The battery pack has an input and output end spaced apart. The aforementioned socket 101 is a single-core socket, and only one type of power terminal 13 is provided within the socket 101. The power terminal 13 is either a positive or negative power terminal 13. The input and output ends are formed by two sockets 101 spaced apart. The plug 102 adapted to the socket 101 is a single-core plug, and only one type of power pin 21 is provided on the plug 102. The two sockets 101 are respectively connected to the plug 102. The power terminal 13 of the socket 101 is a socket terminal, which is used to connect with the power pin 21 of the plug 102 to achieve power current transmission.

[0042] The socket 101 includes a socket housing 11, power terminals 13, signal terminals 14, and a shielding cover 15. Both power terminals 13 and signal terminals 14 are plug-in terminals. The socket housing 11 has a mounting plate 19 for fixing to a battery pack housing 100. The head of the socket housing 11 has a plug-in cavity 12, and the inner cavity of the socket housing includes the plug-in cavity 12. A plug-in protrusion 16 is provided within the plug-in cavity 12, protruding from the bottom of the cavity. The bottom of the cavity 12 is the base of the plug-in cavity 12. The power terminals 13 and signal terminals 14 are installed in corresponding mounting holes within the plug-in protrusion 16. The shielding cover 15 is fitted around the plug-in protrusion 16. The power terminals 13 and signal terminals 14 of the socket 101 are all located within the area enclosed by the shielding cover 15, providing good shielding for each plug-in terminal.

[0043] The plug 102 includes a plug housing, power pins 21, interlocking shorting terminals 22, and a plug shielding structure. The head of the plug housing is provided with a plug central cavity 23 and a plug peripheral annular cavity 24 surrounding the plug central cavity 23. The power pins 21 and the interlocking shorting terminals 22 are located inside the plug central cavity 23. The plug shielding structure has plug shielding contact claws 25 located on the side wall of the plug central cavity 23. The tail end of the plug 102 is connected to a cable, and the plug shielding structure is connected to the shielding layer of the cable.

[0044] After the plug 102 is inserted into the socket 101, the insertion protrusion 16 and the shielding cover 15 are inserted into the central cavity 23 of the plug. The portion of the socket housing 11 located around the insertion protrusion 16 is inserted into the outer ring cavity 24 of the plug. Correspondingly, the portion of the plug housing located between the central cavity 23 and the outer ring cavity 24 is inserted into the space of the insertion cavity 12 located around the insertion protrusion 16. The power pin 21 is inserted into the insertion protrusion 16 and contacts the power terminal 13 for conduction. The interlocking short-circuit terminal 22 is inserted into the two signal terminals 14 of the socket 101 to achieve interlocking circuit conduction. The signal terminals 14 transmit low-voltage signals. In conjunction with the interlocking short-circuit terminal 22 of the plug, it can detect whether the plug and socket are properly inserted. The interlocking detection circuit is existing technology and will not be described in detail here. The plug shielding contact claw 25 abuts against the outer wall surface of the shielding cover 15 to achieve shielding conduction.

[0045] Combination Figure 6 , Figure 7 , Figure 8 The socket housing 11 has a mounting surface 18 for abutting against the side wall of the battery pack housing 100, which is the corresponding equipment housing on which the socket 101 is mounted. The rear end face of the fixing plate 19 forms the mounting surface, and bolt holes are provided at the four corners of the fixing plate 19 to fix the socket housing 11 to the side wall of the battery pack housing 100 by bolts. The shielding cover 15 has a portion that extends out of the socket housing 11 and forms contact and conduction with the metal battery pack housing 100.

[0046] The shielding cover 15 includes a main cylinder 151 that fits over the insertion protrusion 16. An outwardly turned flange 152 is provided at one end of the main cylinder 151 near the bottom of the insertion cavity 12. A shielding protrusion 153 is provided at the end of the outwardly turned flange 152 away from the main cylinder 151. The socket housing 11 has a shielding through hole that passes through the insertion cavity 12 and the mounting surface 18. The shielding protrusion 153 passes through the shielding through hole, and a shielding contact part 154 for contacting the equipment housing is provided at the end of the shielding protrusion 153 extending to the mounting surface 18. The shielding cover 15 is formed by bending an integral sheet material, with the two ends of the sheet joined together to form the main cylinder 151 of the shielding cover 15. This design is simple and easy to manufacture.

[0047] The shielding through-hole of the socket housing 11, located within the inner opening of the insertion cavity 12, forms the entry point for the shielding through-hole 153 to pass through the insertion cavity 12 to the mounting surface 18. The shielding contact part 154 is a spring claw located at the end of the shielding through-hole 153. The spring claw forms an elastic contact with the side wall of the battery pack housing 100, which is beneficial for reliable contact. The shielding contact part 154 is turned outward relative to the shielding through-hole 153, so that the spring claw extends outward. The end of the spring claw has a curved structure, which can better form an elastic contact with the side wall of the battery pack housing 100. When installing the shielding cover 15, the spring claw is not bent at first. At this time, the extension direction of the spring claw is the same as the extension direction of the shielding through-hole 153, so as to facilitate the smooth installation of the shielding cover 15 from one side of the insertion cavity 12. After installation, the spring claw extends out of the socket housing 11, and then it is bent so that it forms an angle with the shielding through-hole 153, which can be perpendicular, thus ensuring the smooth installation of the integrated shielding cover 15.

[0048] The main body 151 has a rectangular structure. Each of the four side walls of the main body 151 is provided with an outward flange 152. The outward flanges 152 are spaced apart from each other. The outward flanges 152 on the two opposite long sides are provided with shielding protrusions 153, while the short sides are not provided with shielding protrusions 153. Both ends of the same outward flange 152 in the length direction are provided with shielding protrusions 153. The shielding holes of the socket housing 11 correspond one-to-one with the shielding protrusions 153 of the shielding cover 15. The four shielding holes are distributed at the four corners of the rectangle.

[0049] In this embodiment, to achieve the individual sealing function of the socket, the sealing of the shielding perforation of the socket housing and the sealing of the socket relative to the battery pack housing mounting interface are achieved using the same integrally molded sealing ring, namely the interface sealing ring 17. The interface sealing ring 17 is arranged around the center line of the socket 101. The mounting surface 18 is provided with a sealing groove for fitting the interface sealing ring 17. The sealing groove is located on the periphery of the area surrounding the plug-in terminal of the socket housing 11. The interface sealing ring 17 presses against the side wall of the battery pack housing 100 to form a seal. The interface sealing ring 17 is located outside the mounting opening on the side wall of the battery pack housing 100 for the socket tail to pass through, which can prevent water from entering at the mounting interface between the socket 101 and the battery pack housing 100. At the same time, the interface sealing ring 17 can seal the shielding perforation of the socket housing 11. The signal terminal 14 and the power terminal 13 respectively form a seal with the socket housing 11, realizing the individual sealing function of the socket 101, and preventing external water from entering the battery pack housing 100 from the socket 101.

[0050] The interface sealing ring 17 has a ring-shaped circumferential portion 171 on its ring body. The circumferential portion 171 corresponds one-to-one with the shielding through portion 153. There are four circumferential portions 171, and each circumferential portion 171 corresponds to one shielding through portion 153. The shielding through portion 153 and the shielding contact portion 154 are located in the space enclosed by the corresponding circumferential portion 171. The circumferential portion 171 is arranged around the periphery of the shielding through hole to cooperate with the battery pack housing 100 to form a seal on the part of the shielding through portion 153 that passes through the socket housing 11.

[0051] The interface sealing ring 17 at the mounting interface between the socket and the battery pack housing 100 is configured as a structure with a partial ring on the overall ring. The overall ring surrounds the center line of the socket to form a seal against the outside world between the mounting surface 18 of the socket housing and the battery pack housing 100, preventing external water from entering through the mounting port on the side wall of the battery pack housing. The partial ring formed by the surrounding part 171 of the interface sealing ring surrounds the shielding through-hole 153 of the shielding cover to form a seal against the inside of the socket. One sealing ring can achieve a seal around the outer edge of the mounting surface of the socket housing and a seal at the shielding through-hole. The interface sealing ring 17 can be integrally molded, saving costs and simplifying the installation structure of the sealing ring, making it convenient to operate.

[0052] The width of the portion surrounding the interface sealing ring 171 is greater than the width of the remaining portion. This width direction is perpendicular to the centerline direction of the interface sealing ring 17, which is consistent with the centerline direction of the socket, i.e., the front-to-back direction. The ring body of the interface sealing ring 17 has a portion of equal width between two adjacent surrounding portions 171. The overall ring body of the interface sealing ring 17 is not a structure of equal width. The portion where the surrounding portion 171 is located is wider to ensure that it encircles the shielding perforation area, while the remaining portion is narrower, which can reduce the size, make the structure compact, and save space. In other embodiments, the interface sealing ring can also be set to a structure of equal width throughout.

[0053] The surrounding portion 171 has an inner portion 1711 close to the center line of the interface sealing ring 17 and an outer portion 1712 away from the center line of the interface sealing ring 17. The width of the inner portion 1711 is smaller than the width of the outer portion 1712, ensuring the sealing contact area while avoiding the inner portion occupying too much space. In other embodiments, if the arrangement space allows, the width of the inner portion can also be the same as the width of the outer portion.

[0054] The interface sealing ring 17 has raised ribs that protrude along its centerline. The width of the raised ribs gradually decreases along the protruding direction. The raised ribs extend along the ring body, and there are raised ribs on both the front and rear sides of the interface sealing ring 17. The raised ribs can enhance the sealing performance. The number of raised ribs on the inner part 1711 of the surrounding part 171 is less than the number of raised ribs on the outer part 1712. There is one raised rib on the inner part 1711, two raised ribs on the outer part 1712, and two raised ribs on the remaining parts. All raised ribs are the same size, which facilitates molding.

[0055] The interface sealing ring 17 has a protruding post 172 perpendicular to the center line of the interface sealing ring. The mounting surface 18 has an exposed groove for the protruding post 172 to be inserted. The exposed groove is connected to the sealing groove and has a side opening on the outer side of the socket housing 11 to expose the protruding post 172. After the socket is fixed to the battery pack housing, the mounting surface 18 is attached to the side wall of the housing. At this time, the sealing ring can be seen through the side opening of the exposed groove, which can help determine whether it is missing.

[0056] The protruding post 172 is disposed on the portion of the interface sealing ring 17 located between two adjacent surrounding portions 171, and is connected to the equal-width portion of the ring body of the interface sealing ring 17 located between two adjacent surrounding portions 171. This equal-width portion is relatively small, which can prevent the protruding post from occupying too much space perpendicular to the center line of the interface sealing ring, resulting in a compact structure. In other embodiments, the protruding post can also be disposed on the surrounding portion if space permits.

[0057] The mounting surface 18 is provided with a sealing groove for mounting the interface sealing ring 17. The sealing groove is connected to the shielding perforation, which can save the space required for mounting the interface sealing ring and help reduce the size of the socket connector. In other embodiments, the sealing groove and the shielding perforation may not be connected, but are independent of each other. In this case, the sealing groove has an outer space surrounding the shielding perforation and spaced at the periphery of the shielding perforation. The portion of the interface sealing ring located inside the outer space can seal the shielding perforation area.

[0058] The surrounding portion 171 includes an inner portion 1711 near the center line of the interface sealing ring 17 and an outer portion 1712 relatively far from the center line of the interface sealing ring 17. The sealing groove on the mounting surface 18 has an inner groove portion for mounting the inner portion 1711 and an outer groove portion for mounting the outer portion 1712. The inner groove portion communicates with the corresponding shielding perforation, so that the inner side of the shielding protrusion 153 contacts the inner portion 1711 of the surrounding portion 171, which helps to reduce the size of the shielding cover. In other embodiments, the outer groove portion may also communicate with the corresponding shielding perforation, and accordingly, the outer flange dimension of the shielding cover is larger.

[0059] A boss 110 is provided in the sealing groove on the mounting surface 18 at the position corresponding to the shielding perforation. The space through the front and back of the surrounding part 171 is adapted to the size of the boss. The surrounding part 171 is wrapped around the boss 110 and the shielding protrusion 153. The top surface of the boss 110 is the surface of the mounting surface 18 located between the inner part 1711 and the outer part 1712 of the surrounding part 171. The shielding protrusion 153 is located inside the boss 110. The outwardly turned shielding contact part 154 faces the outer part 1712 of the surrounding part 171. The shielding contact part 154 is a spring claw that is turned outward relative to the shielding protrusion 153. The boss 110 can support the spring claw after it abuts against the side wall of the battery pack housing. The distance between the inner part and the outer part of the surrounding part 171 is sufficient to prevent the sealing ring from interfering with the spring claw, so as to ensure reliable sealing.

[0060] An embodiment of the socket of this utility model:

[0061] The socket in this embodiment has the same structure as the socket in the embodiment of the battery pack described above, and will not be described again here.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. 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 socket, characterized in that, The device includes a socket housing and a shielding cover installed inside the socket housing. The socket housing has a mounting surface for abutting against a device housing. The shielding cover has a shielding protrusion. The socket housing has a shielding through-hole that extends from its inner cavity to the mounting surface. The shielding protrusion passes through the shielding through-hole, and the end of the shielding protrusion that extends to the mounting surface has a shielding contact portion for contacting the device housing. The mounting surface has a sealing ring that surrounds the center line of the socket for sealing with the device housing. The sealing ring has a ring-shaped circumferential portion that corresponds one-to-one with the shielding protrusion. The circumferential portion surrounds the outer periphery of the shielding protrusion to cooperate with the device housing to form a seal at the part where the shielding protrusion passes through the socket housing.

2. The socket according to claim 1, characterized in that, The width of the portion surrounding the sealing ring is greater than the width of the remaining portion, and this width direction is perpendicular to the center line direction of the sealing ring.

3. The socket according to claim 1 or 2, characterized in that, The surrounding portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring, with the width of the inner portion being smaller than the width of the outer portion.

4. The socket according to claim 3, characterized in that, The sealing ring is provided with raised ribs that protrude along its center line, and the number of raised ribs on the inner part of the surrounding part is less than the number of raised ribs on the outer part.

5. The socket according to claim 1 or 2, characterized in that, The sealing ring has a protruding post that protrudes perpendicular to the center line of the sealing ring. The mounting surface has an exposed groove for the protruding post to be inserted. The exposed groove has a side opening on the outer side of the socket housing for the protruding post to be exposed.

6. The socket according to claim 5, characterized in that, The protruding post is located on the portion of the sealing ring between two adjacent surrounding portions.

7. The socket according to claim 1 or 2, characterized in that, The mounting surface is provided with a sealing groove for installing a sealing ring, and the sealing groove is connected to the shielding perforation.

8. The socket according to claim 7, characterized in that, The circumferential portion has an inner portion close to the center line of the sealing ring and an outer portion away from the center line of the sealing ring. The sealing groove has an inner groove portion for mounting the inner portion and an outer groove portion for mounting the outer portion. The inner groove portion communicates with the corresponding shielding perforation.

9. The socket according to claim 8, characterized in that, A boss is provided in the sealing groove at the position corresponding to the shielding through hole. The surrounding part is wrapped around the boss and the shielding through part. The shielding through part is located inside the boss. The shielding contact part is a spring claw that is turned outward relative to the shielding through part. The boss is used to support the spring claw after it abuts against the equipment housing.

10. A battery pack, characterized in that, The device includes a battery pack housing and a socket fixedly mounted on the side wall of the battery pack housing, wherein the socket is the socket described in any one of claims 1-9, and the battery pack constitutes a device with the socket installed.

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