Power strip

Abstract

A kind of power supply socket, including shell, cable assembly and at least two plug sleeve modules, plug sleeve module includes plug sleeve base and at least two types of connecting units, connecting unit includes plug sleeve and conductive piece, the middle part of conductive piece is integrally injection molded with plug sleeve base, outer side end is fixed with connecting piece by rotary riveting, inner side end is connected with plug sleeve by expansion riveting, form gapless sealing structure, plug sleeve base is separated into ground wire, fire wire and zero line cavity by partition, support column and drainage channel are arranged in the bottom of cavity, and the drainage hole in the bottom of shell is communicated, realize fast drainage, by modular design, integrated injection molding and riveting process, the sealing reliability is significantly improved, assembly process is simplified, contact resistance is reduced, suitable for humid, dusty and outdoor environment.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical appliances, specifically to a power strip. Background Technology

[0002] With the rapid development of new energy vehicles, electric bicycles, and outdoor electrical equipment, users have placed higher demands on the safety and protection levels of electrical accessories. Especially in humid, dusty, or outdoor environments, traditional power strips are not adequately protected, easily leading to safety hazards such as leakage and short circuits, seriously threatening users' lives and property.

[0003] Most power strips on the market currently use soldering, which has the following drawbacks:

[0004] 1. The assembly process of power strips is cumbersome, the production efficiency is low, and it is difficult to achieve precise sealing.

[0005] 2. Poor solder joint reliability: During the solder cooling process, shrinkage stress may be generated, forming microcracks or incomplete solder joints, which become channels for moisture penetration.

[0006] 3. Pores may exist on the solder surface, resulting in an uneven surface that is difficult to seal completely, leading to decreased insulation performance and increasing the risk of electric shock. Utility Model Content

[0007] The purpose of this utility model is to overcome at least one defect of the prior art and provide a power strip.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A power strip includes a housing, a cable assembly, and at least two socket modules disposed within the housing. Each socket module includes a socket base and at least two types of connection units. Each connection unit includes a socket piece and a conductive element. Connection units of the same type in at least two socket modules are connected to the same connector, and the connector is connected to the cable assembly.

[0010] The insert assembly is disposed inside the insert base, the connector is located outside the insert base, between the insert base and the housing, the middle part of the conductive element passes through the insert base and is integrally injection molded with the insert base, one end of the conductive element located outside the insert base is connected to the connector, and the other end located inside the insert base is connected to the insert assembly.

[0011] Preferably, the connector has a first riveting hole for the conductive component to pass through, and one end of the conductive component passing through the first riveting hole has a first riveting joint formed by rotational riveting. The diameter of the riveting joint is larger than the diameter of the first riveting hole. The riveting joint fixes the connector to the socket base and forms a conductive connection with the connector.

[0012] Preferably, the insert kit has a second riveting hole for the conductive component to pass through, and one end of the conductive component passing through the second riveting hole has a second riveting joint formed by expansion riveting, and the second riveting joint is interference-fitted with the second riveting hole.

[0013] Preferably, the conductive component has a molding part in the middle, and the outer circumferential surface of the molding part has uniformly distributed annular continuous tooth-shaped molding protrusions. The molding part is embedded in the socket base and is integrally injection molded with the socket base.

[0014] Preferably, the socket base is divided into a ground wire cavity, a live wire cavity, and a neutral wire cavity by a Y-shaped first partition. The live wire cavity and the neutral wire cavity are arranged opposite each other on both sides of the ground wire cavity. The ground wire cavity, the live wire cavity, and the neutral wire cavity are respectively provided with a ground wire connection unit, a live wire connection unit, and a neutral wire connection unit as connection units.

[0015] Preferably, the bottom of the socket base is provided with at least three support columns corresponding to the ground wire cavity, the live wire cavity and the neutral wire cavity respectively. The support columns are provided with drainage channels, and the bottom of the housing is provided with drainage holes at corresponding positions, which are aligned with the drainage channels of the support columns, forming a continuous drainage path from the inside of the socket base, the drainage channels to the drainage holes.

[0016] Preferably, the top of the drainage channel is higher than the bottom surface of the socket base and communicates with the corresponding cavity through a lateral communication port; and / or, the bottom of the support column is provided with an annular first sealing ring, which cooperates with the bottom of the housing.

[0017] Preferably, the first partition is provided with a waterproof groove, and a Y-shaped second sealing ring is embedded in the waterproof groove, the second sealing ring being in sealing contact with the bottom of the protective door assembly.

[0018] Preferably, it also includes a protective door assembly, which includes a protective door base installed inside the plug base above the connecting unit, and is provided with a movable protective door slide and a spring, the spring being used to drive the protective door slide to block the connecting unit.

[0019] Preferably, the interior of the protective door base is divided into a two-stage sliding groove and a three-stage sliding groove by a second partition;

[0020] The protective door slide includes a two-pole slide and a three-pole slide, which are slidably disposed in the two-pole slide groove and the three-pole slide groove, respectively;

[0021] The second partition is provided with a spring groove connecting the two-pole slide groove and the three-pole slide groove. The two-pole slide and the three-pole slide are provided with spring portions extending into the spring groove. The spring is disposed in the spring groove, and its two ends are respectively connected to the spring portions of the two-pole slide and the three-pole slide.

[0022] Preferably, the inner wall of the insert base is provided with positioning ribs, which make the protective door base and the inner wall of the insert base spaced apart, forming a limiting groove in the protective door base. The side of the waterproof bushing is provided with limiting plates corresponding to the limiting grooves, and the limiting plates are inserted into the corresponding limiting grooves for limiting engagement.

[0023] Preferably, it also includes a switch assembly, which includes a switch body and a switch button for controlling the on / off state of the switch body, and the cable supplies power to the socket module through the switch body.

[0024] Preferably, the switch body is provided with switch terminals that are respectively connected to cables and connectors, and the switch terminals are provided with a third riveting part, which is U-shaped and wrapped around the corresponding cable assembly or connector for conductive connection.

[0025] Preferably, the switch button is provided with a corrugated elastic structure around its perimeter, and the edge of the elastic structure is interference-fitted with the housing to seal the switch hole on the housing corresponding to the switch button.

[0026] Preferably, the cable assembly includes a sheath, a first limiting rib, and a second limiting rib. The first limiting rib and the second limiting rib are spaced apart along the axial direction of the sheath. The housing is provided with a first sealing groove fitted onto the upper limit of the first limiting rib and a second sealing groove fitted onto the upper limit of the second limiting rib at corresponding positions.

[0027] Preferably, the housing includes a front shell and a bottom shell, and an annular fifth sealing ring is provided at the contact position between the front shell and the bottom shell.

[0028] The power strip in this embodiment has the following advantages:

[0029] 1. By using a conductive component as an intermediary, the insert and connector can be separated, and the conductive component can be designed in a standardized manner;

[0030] 2. Conductive components, plug-in kits, and plug-in bases can be pre-assembled into independent modules, and the circuit can be built by connecting them in parallel with connectors. This makes assembly convenient and significantly reduces assembly costs.

[0031] 3. When similar connection units are connected in parallel via connectors, the cable assembly only needs to be connected in series with the connectors to avoid multiple cables being directly connected to the plug kit;

[0032] 4. The conductive component and the socket base are integrally injection molded. The socket base covers the middle of the conductive component, which not only eliminates gaps and completely isolates dust and moisture, but also makes the connection more reliable and extends the service life.

[0033] In addition, the molding part is a cylindrical embossed structure with annular continuous toothed molding protrusions evenly distributed on its outer circumference surface. The length direction of the molding protrusions is parallel to the axis, which interlocks with the injection molding of the insert base. This can also greatly increase the contact area, adapt to the characteristics of the injection molding process, avoid uneven plastic filling, and improve the injection molding yield.

[0034] Furthermore, rotary riveting applies pressure and friction to the first riveting part using a rotating tool, softening and shaping the first riveting head into a mushroom shape. This first riveting head has a contact surface that tightly adheres to the conductive component, and the diameter of this contact surface is larger than the diameter of the first riveting hole. Rotary riveting, through plastic deformation, can fill gaps and form a contact surface that tightly adheres to the conductive component, significantly reducing contact resistance and avoiding the problem of increased contact resistance caused by poor soldering. It also effectively isolates external moisture and dust, improving electrical safety and durability. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the top structure of a power strip;

[0036] Figure 2 This is a schematic diagram of the bottom structure of a power strip;

[0037] Figure 3 This is an exploded view of a power strip;

[0038] Figure 4 This is a schematic diagram of the columnar structure before the conductive components and connectors are rotated and riveted together;

[0039] Figure 5 This is a schematic diagram of the structure that becomes mushroom-shaped after the conductive parts and connectors are rotated and riveted together.

[0040] Figure 6 It is a cross-sectional view of the power strip before the conductive parts and connecting parts are rotated and riveted;

[0041] Figure 7 It is a cross-sectional view of the power strip after the conductive parts and connecting parts are rotated and riveted together;

[0042] Figure 8 This is a schematic diagram of the conductive component;

[0043] Figure 9 This is a schematic diagram of the plug-in module;

[0044] Figure 10 This is an assembly diagram of the socket base and the socket assembly;

[0045] Figure 11 This is a schematic diagram of the internal structure of the socket base and the connecting unit;

[0046] Figure 12This is a schematic diagram of the structure on the outer side of the bottom of the socket base;

[0047] Figure 13 This is a schematic diagram of the second sealing ring;

[0048] Figure 14 This is an exploded view of the protective door assembly;

[0049] Figure 15 This is a schematic diagram of the structure of the protective door base and the protective door slide.

[0050] Figure 16 This is a schematic diagram of the structure at the bottom outer side of the protective door base;

[0051] Figure 17 This is a schematic diagram of the switch assembly.

[0052] Figure 18 This is an exploded view of the switch assembly;

[0053] Figure 19 This is an assembly diagram of the faceplate, switch assembly, and socket module;

[0054] Figure 20 It is a cross-sectional view of the assembled housing, switch assembly, and socket module;

[0055] Figure 21 This is an assembly diagram of the cable assembly;

[0056] In the picture:

[0057] 1. Housing 51. Protective Door Base

[0058] 2 Cable Assembly 52 Waterproof Bushing

[0059] 3-socket module 53 two-pole slider

[0060] 4 Switching Components 54 Three-Pole Slider

[0061] 5. Protective door assembly 55. Second partition

[0062] 11 Bottom shell 56 Two-pole sliding groove

[0063] 12-sided shell 57 three-pole groove

[0064] 13 panel, 58 spring slots

[0065] 14 Drainage holes 59 Spring section

[0066] 15 plug 210 first sealing groove

[0067] 16 Fifth sealing ring 220 Second sealing groove

[0068] 17 Waterproof sealing groove 311 First partition

[0069] 20 sheath 312 grounding cavity

[0070] 21 First limiting rib 313 Fire wire cavity

[0071] 22 Second limiting rib 314 Zero line cavity

[0072] 23 Connector 315 Support Column

[0073] 24 connecting columns, 316 drainage channels

[0074] 31 Insert base 317 First sealing ring

[0075] 32 Insert Kit 318 Second Sealing Ring

[0076] 33 Conductive component 321 Second riveting hole

[0077] 34 Connector 330 Molding Part

[0078] 35 Fire Wire Connection Unit 331 First Riveting Part

[0079] 36 Neutral wire connection unit 332 Second riveting part

[0080] 37 Grounding connection unit 333 First riveting joint

[0081] 41 Switch button 341 First riveting hole

[0082] 42 Switch Body 511 Limit Post

[0083] 43 switch bracket 512 positioning slot

[0084] 44 Elastic Structure 513 Positioning Column

[0085] 45 Fourth sealing ring 514 Limiting groove

[0086] 50 spring 521 limit plate Detailed Implementation

[0087] The following embodiments, in conjunction with the accompanying drawings, further illustrate the specific implementation of the power strip of this utility model. The power strip of this utility model is not limited to the descriptions in the following embodiments.

[0088] like Figure 1-3 As shown, the safe power strip in this embodiment includes:

[0089] The housing 1 is used to house and protect the internal components, including the bottom housing 11, the front housing 12, and the front panel 13;

[0090] Cable assembly 2, used to provide power input;

[0091] At least two socket modules 3 are used for conductive connection with an external plug, including a socket base 31 and at least two types of connection units disposed in the socket base 31. Each connection unit includes a socket assembly 32 and a conductive element 33 connected to the socket assembly 32. The connection unit is connected to a corresponding connector 34 through the conductive element 33. The connector 34 is connected to a cable assembly 2. The cable assembly 2 is transmitted to the socket assembly 32 through the connector 34. The housing 1 is provided with a socket corresponding to the socket assembly 32. The socket assembly 32 is conductively connected to the external plug. The socket assembly 32 is disposed inside the socket base 31. The connector 34 is located outside the socket base 31 and between the socket base 31 and the housing 1.

[0092] In at least two plug-in modules 3, conductive components 33 of the same type are connected by corresponding connectors 34, and the connectors 34 are connected to the corresponding cables. The connectors 34 are copper sheets or other conductive sheets.

[0093] The switch assembly 4 includes a switch button 41 and a switch body 42. The cable assembly 2 supplies power to the socket module 3 through the switch body 42. The user controls the on / off state of the switch body 42 through the switch button 41.

[0094] The protective door assembly 5 includes a protective door slide and a spring 50. The spring 50 is used to drive the protective door slide to block the insertion hole on the housing 1 to prevent foreign objects from being inserted into the housing 1 and contacting the insertion module 3.

[0095] This embodiment features three types of connection units: a live wire connection unit 35, a neutral wire connection unit 36, and a ground wire connection unit 37. The cable assembly 2 is correspondingly equipped with a live wire, a neutral wire, and a ground wire. The live wire connection unit 35, the neutral wire connection unit 36, and the ground wire connection unit 37 are respectively connected to the live wire, neutral wire, and ground wire via three connectors 34. Alternatively, the ground wire can be omitted, and the ground wire connection unit 37 can be removed, leaving only the live wire connection unit 35 and the neutral wire connection unit 36. In this case, the power strip loses its grounding protection function and is suitable for two-prong plugs.

[0096] Alternatively, the switch assembly 4 can be omitted, and the live wire can be directly connected to the socket module 3, omitting the circuit control function. However, the power strip is always powered by default and cannot be switched off by a physical switch.

[0097] Alternatively, the protective door component 5 can be omitted, but the socket will be unobstructed, posing a risk of foreign objects being accidentally inserted, thus reducing safety.

[0098] like Figure 4-7As shown, an improvement in this embodiment is that the connecting unit includes a plug-in kit 32 and a conductive element 33. The plug-in kit 32 is disposed inside the plug-in base 31. The connecting element 34 is located outside the plug-in base 31, between the plug-in base 31 and the housing 1. The middle part of the conductive element 33 passes through the plug-in base 31 and is integrally injection molded with the plug-in base 31. One end of the conductive element 33 located outside the plug-in base 31 is connected to the connecting element 34, and the other end located inside the plug-in base 31 is connected to the plug-in kit 32.

[0099] The power strip in this embodiment has the following advantages:

[0100] 1. The insert 32 and the connector 34 are separated by the conductive component 33 as an intermediary, and the conductive component 33 can be designed in a standardized manner;

[0101] 2. The conductive component 33, the insert kit 32 and the insert base 31 can be pre-assembled as independent modules, and the circuit can be built by connecting them in parallel through the connector 34. The assembly is convenient and the assembly cost is significantly reduced.

[0102] 3. After the same type of connection units are connected in parallel through connector 34, the cable assembly 2 only needs to be connected in series with connector 34 to avoid multiple cables being directly connected to the plug kit 32;

[0103] 4. The conductive component 33 and the socket base 31 are integrally injection molded. The socket base 31 covers the middle of the conductive component 33, which not only eliminates gaps and completely isolates dust and moisture, but also makes the connection more reliable and extends the service life.

[0104] like Figure 7-8 As shown, the conductive component 33 in this embodiment includes a molding part 330 and a first riveting part 331 and a second riveting part 332 disposed opposite to each other at both ends of the molding part 330. The first riveting part 331 and the second riveting part 332 are respectively connected to the connector 34 and the insert 32. The molding part 330 is embedded in the injection mold of the insert base 31 and is integrally injection molded with the insert base 31. Preferably, the molding part 330 is a cylindrical embossed structure with annular continuous toothed molding protrusions evenly distributed on its outer circumferential surface. The length direction of the molding protrusions is parallel to the axis, forming an interlock with the injection molding of the insert base 31. This can also greatly increase the contact area, adapt to the characteristics of the injection molding process, avoid uneven plastic filling, and improve the injection molding yield.

[0105] like Figure 4-7As shown, in this embodiment, the first riveting part 331 is connected to the connector 34 via rotary riveting. The connector 34 has a first riveting hole 341 through which the first riveting part 331 of the conductive element 33 passes. The first riveting part 331 has a first riveting head 333 formed by rotary riveting. The first riveting head 333 fixes the conductive element 33 to the bottom outer side of the plug-in module 3. Rotary riveting refers to applying pressure and friction to the first riveting part 331 using a rotating tool, softening the first riveting head 333 and shaping it into a mushroom shape. The first riveting head 333 has a contact surface that fits tightly with the conductive element 33, and the diameter of the contact surface is larger than the diameter of the first riveting hole 341. Rotary riveting can fill gaps through plastic deformation, forming a contact surface that fits tightly with the conductive element 33, significantly reducing contact resistance and avoiding the problem of increased contact resistance due to poor soldering during soldering. It can also effectively isolate external moisture and dust, improving electrical safety and durability.

[0106] like Figure 6-7 As shown in Figure 9, in this embodiment, the second riveting part 332 is connected to the insert kit 32 by expansion riveting. The insert kit 32 is provided with a second riveting hole 321 through which the second riveting part 332 of the conductive member 33 passes. One end of the conductive member 33 passing through the second riveting hole 321 is provided with a second riveting head formed by expansion riveting. The second riveting head is interference-fitted with the second riveting hole 321. The second riveting part 332 is provided with a cross-shaped groove for positioning and deformation guidance during expansion riveting. The expansion riveting can be formed into a trumpet shape or an umbrella shape by expanding outward through the conductive member 33.

[0107] It should be noted that, as in other embodiments, the conductive element 33 can also be connected to the connector 34 and the plug-in kit 32 in other ways.

[0108] like Figure 9-12 A preferred embodiment of the socket module 3 is shown. The socket base 31 adopts a square box structure. The socket base 31 has four screw holes at its four corners and is locked to the mounting post on the inner side of the face shell 12 by screws. The interior is divided into a ground wire cavity 312, a live wire cavity 313 and a neutral wire cavity 314 by a central Y-shaped first partition 311. The ground wire cavity 312 is located in the middle of the socket base 31 and is formed by the Y-shaped first partition 311. A ground wire connection unit 37 is provided inside.

[0109] The live wire cavity 313 and the neutral wire cavity 314 are arranged opposite to each other on both sides of the ground wire cavity 312, and the live wire connection unit 35 and the neutral wire connection unit 36 ​​are respectively provided inside the cavity.

[0110] The live wire connection unit 35 and the neutral wire connection unit 36 ​​are respectively provided with a live wire two-prong socket and a neutral wire two-prong socket at the front end of the live wire cavity 313 and the neutral wire cavity 314. The live wire two-prong socket and the neutral wire two-prong socket form a two-hole slot to accommodate a two-prong plug.

[0111] The live wire connection unit 35 and the neutral wire connection unit 36 ​​are respectively provided with a live wire three-prong socket and a neutral wire three-prong socket at the rear end of the live wire cavity 313 and the neutral wire cavity 314. The ground wire socket, the live wire three-prong socket and the neutral wire three-prong socket form a two-hole slot to adapt to a three-prong plug.

[0112] The two-prong live wire socket and the three-prong live wire socket are respectively disposed on the live wire socket plate, and the end of the live wire socket plate is connected to the conductive element. The two-prong neutral wire socket and the three-prong neutral wire socket are respectively disposed on the neutral wire socket plate, and the end of the neutral wire socket plate is connected to the conductive element.

[0113] Furthermore, the socket module 3 also has a drainage system. Three hollow support columns 315 extend from the bottom of the outer side of the socket base 31. The three support columns 315 are triangularly distributed on the three outer walls of the socket base 31. Drainage channels 316 are provided inside the three support columns 315. The drainage channels 316 inside the three support columns 315 are respectively connected to the ground wire cavity 312, the live wire cavity 313 and the neutral wire cavity 314. The top of the drainage channel 316 is set higher than the bottom of the socket base 31. A connecting port is opened on the side of the top of the drainage channel 316. The connecting port is connected to the bottom of the corresponding cavity. The height difference forms a liquid flow path, so that the liquid in the cavity can flow in along the top of the drainage channel 316.

[0114] A drainage hole 14 is provided at the corresponding position at the bottom of the housing 1, which is aligned with the drainage channel 316 of the support column 315, forming a continuous drainage path from the inside of the insert base 31, the drainage channel 316 to the drainage hole 14.

[0115] The support column 315 contacts the bottom of the housing 1, so that the bottom of the socket base 31 is suspended, leaving space for the installation of the connector 34, while ensuring that the accumulated water is quickly discharged through the drainage channel 316 to avoid liquid retention in the cavity.

[0116] Preferably, the bottom of the support column 315 is provided with an annular first sealing ring 317, which seals with the bottom of the housing 1, thereby improving the waterproof performance between the support column 315 and the housing 1.

[0117] like Figure 9 , 13 As shown, the top of the insert base 31 is provided with a protective door assembly 5, and the Y-shaped first partition 311 is provided with a Y-shaped waterproof groove. The waterproof groove is provided with a Y-shaped second sealing ring 318, and the second sealing ring 318 seals with the protective door assembly 5.

[0118] like Figure 14-16 As shown, the protective door assembly 5 includes:

[0119] A protective door base 51, installed within the insert base 31 above the connecting unit, includes a movable protective door slide and a spring 50. The spring 50 drives the protective door slide to block the connecting unit. The protective door slide includes a two-pole slide 53 and a three-pole slide 54. The spring 50 drives the two-pole slide 53 and the three-pole slide 54 to block the connecting unit. When the plug is inserted, it pushes the protective door slide to slide and expose the connecting unit, allowing the plug to make conductive contact with the connecting unit.

[0120] The waterproof bushing 52 is located above the protective door base 51 and is used to limit the two-pole slider 53, the three-pole slider 54 and the spring 50, while sealing the top opening of the insert base 31.

[0121] The protective door base 51 is installed inside the insert base 31, and the waterproof bushing 52 seals the top opening of the insert base 31, forming a module to improve sealing and modular integration.

[0122] In this embodiment, the interior of the protective door base 51 is divided into a two-pole sliding groove 56 and a three-pole sliding groove 57 by a second partition 55. A spring groove 58 connecting the two is provided in the middle of the second partition 55. Two-pole sliding pieces 53 and three-pole sliding pieces 54 are respectively arranged in the two-pole sliding groove 56 and the three-pole sliding groove 57. Two-pole sliding pieces 53 and three-pole sliding pieces 54 are respectively provided with spring portions 59 extending into the spring groove 58. The spring portions 59 of the two are connected by a spring 50. One spring 50 is used to drive the two-pole sliding pieces 53 and the three-pole sliding pieces 54 to block the connecting unit.

[0123] Furthermore, the bottom of the protective door base 51 is provided with a plurality of limiting posts 511. The protective door base 51 is inserted into the insert base 31. The limiting posts 511 create a gap between the bottom of the protective door base 51 and the bottom of the insert base 31, leaving space for the insert kit 32 of the connecting unit to be installed. At the same time, the limiting posts 511 limit the insert kit 32 of the connecting unit. The two top corners of the diagonal of the protective door base 51 are provided with positioning grooves 512, and the corresponding positions of the insert base 31 are provided with positioning posts 513. The two work together to achieve limiting.

[0124] The inner wall of the insert base 31 is provided with positioning ribs, which space the protective door base 51 from the inner wall of the insert base 31. Four limiting grooves 514 are formed around the protective door base 51.

[0125] The waterproof bushing 52 has four side edges with limit plates 521 corresponding to the four limit grooves 514 respectively. The limit plates 521 are inserted into the corresponding limit grooves 514 for limiting and matching.

[0126] like Figure 17-20As shown, the switch assembly 4 is located between the cable assembly 2 and the socket module 3, specifically installed in the switch mounting slot inside the housing 12, and is used to control the current flow between the cable assembly 2 and the socket module 3. It includes:

[0127] The switch body 42 includes a switch contact and two switch contacts. The two switch contacts are connected to the cable assembly 2 and the connector 34 respectively through two switch terminals. The switch contact can contact and separate from the two switch contacts to conduct the cable assembly 2 and the connector 34, thereby realizing power control.

[0128] The switch button 41 is used to move the switch contact. The housing 1 has a switch hole for the switch button 41 to extend out. The switch button 41 is surrounded by a corrugated elastic structure 44. The elastic structure 44 covers the switch hole and the outer ring is fixed to the housing 1. When the switch button 41 moves, it causes the elastic structure 44 to contract, which is used to compensate for the displacement deformation when pressed, so that the elastic structure 44 can always be in close contact with the housing 12 to form a dynamic sealing interface and block water vapor penetration.

[0129] The switch bracket 43 is fixed to the housing 1 on the front through a limiting round hole and a screw post hole. The switch body 42 is fixed to the switch bracket 43 by two screws. The switch bracket 43 is ring-shaped and can press the edge of the elastic structure 44 to the housing 1. The through hole in the middle of the switch bracket 43 is used to avoid the switch button 41 and the elastic structure 44.

[0130] Preferably, the edge of the elastic structure 44 is provided with an annular fourth sealing ring 45, and the corresponding position of the face shell 12 is provided with an annular waterproof sealing groove 17, and the fourth sealing ring 45 and the waterproof sealing groove 17 are interference fit.

[0131] Preferably, the switch terminal is a metal sheet, and the switch terminal has a U-shaped third riveting part formed by pulse riveting. The third riveting part is wrapped around the corresponding cable assembly 2 or connector 34 for conductive connection, which does not require soldering, and the connection is reliable and has low contact resistance.

[0132] like Figure 3 , 21 As shown, the housing 1 includes a bottom shell 11 and a front shell 12 covering the bottom shell 11. The front shell 12 is fixed to the bottom shell 11 by snaps and screws. A plug 15 for sealing the screws is provided at the bottom of the bottom shell 11. A fifth annular sealing ring 16 is provided at the part of the front shell 12 that contacts the bottom shell 11. A protruding mounting post is provided on the inner side of the front shell 12. The plug module 3 is fixed to the mounting post by screws. A mounting groove is provided on the top side of the front shell 12. A panel 13 is provided in the mounting groove.

[0133] The cable assembly 2 includes:

[0134] Sheath 20, internally housing the live wire, neutral wire, and ground wire;

[0135] The first limiting rib 21 is provided on the outside of the sheath 20, and the bottom shell 11 and the top shell 12 are respectively provided with a first sealing groove 210 for being fitted onto the first limiting rib 21 for upper positioning.

[0136] The second limiting rib 22 is located on the outside of the sheath 20 and is spaced apart from the first limiting rib 21 at a distance of 2-4mm. The face shell 12 is provided with a second sealing groove 220 for fitting the upper limit of the second limiting rib 22.

[0137] The connecting seat 23 is located on both sides of the second limiting rib 22, and the face shell 12 is provided with a connecting post 24 that is inserted into the connecting seat 23 for limiting.

[0138] The first limiting rib 21 and the second limiting rib 22 not only provide axial limiting, but also play a multi-level sealing role to prevent moisture from seeping in from the cable inlet.

[0139] The assembly process in this embodiment includes the following steps:

[0140] Step 1: Insert the sleeve 32 into the conductive component 33, and fix the conductive component 33 to the sleeve 32 by expansion riveting;

[0141] Step 2: Insert the connecting strip 34 into the outside of the conductive component 33, and fix the conductive component 33 to the connecting strip 34 by rotation riveting;

[0142] Step 3: Fit the first sealing ring 317 onto the three support posts 315 at the bottom of the socket base 31, and embed the second sealing ring 318 into the Y-shaped waterproof groove at the top of the socket base 31. Figure 13 ;

[0143] Step 4: Insert the two-pole protection door slide and the three-pole protection door slide into the slide groove of the protection door base 51, install the compression spring 50 between the two slides, then align the protection door base 51 with the positioning post 513 of the insert base 31 and press it down and install it into the insert base 31.

[0144] Step 5: Fix the switch body 42 to the switch bracket 43 with screws. Connect the switch terminal and the live wire connector 34 with pulse riveting. Press the edge of the elastic structure 44 of the switch button 41 into the waterproof sealing groove 17 of the housing 12. Then fix the switch bracket 43 to the housing 1 with screws to form a dynamic seal. Figure 20 .

[0145] Step 6: Pass the sheath 20 cable through the cable inlet of the bottom shell 11, and pulse-rivet the live wire to the switch body 42. Pulse-rivet the neutral wire and the ground wire to the neutral wire connector 34 and the ground wire connector 34 respectively.

[0146] Step 7: Secure the insert module 3 to the mounting post of the face shell 12 with screws. Insert the fifth sealing ring 16 into the groove on the edge of the face shell 12 and fasten it onto the bottom shell 11. Fix the bottom shell 11 and the face shell 12 with screws. Figure 3 .

[0147] It should be noted that in the description of this utility model, the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used during use. They are only for ease of description and do not indicate that the device or component referred to must have a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating relative importance.

[0148] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A power strip, comprising a housing (1), a cable assembly (2), and at least two socket modules (3) disposed within the housing (1), characterized in that: The socket module (3) includes a socket base (31) and at least two types of connection units. The connection unit includes a socket piece (32) and a conductive element (33). The same type of connection units of at least two socket modules (3) are connected to the same connector (34). The connector (34) is connected to the cable assembly (2). The insert kit (32) is disposed inside the insert base (31). The connector (34) is located outside the insert base (31) and between the insert base (31) and the housing (1). The middle part of the conductive element (33) passes through the insert base (31) and is integrally injection molded with the insert base (31). One end of the conductive element (33) located outside the insert base (31) is connected to the connector (34), and the other end located inside the insert base (31) is connected to the insert kit (32).

2. The power strip according to claim 1, characterized in that: The connector (34) is provided with a first riveting hole (341) through which the conductive element (33) passes. One end of the conductive element (33) passing through the first riveting hole (341) is provided with a first riveting head (333) formed by rotational riveting. The diameter of the riveting head is larger than the diameter of the first riveting hole (341). The riveting head fixes the connector (34) to the socket base (31) and forms a conductive connection with the connector (34).

3. The power strip according to claim 1, characterized in that: The insert (32) is provided with a second riveting hole (321) through which the conductive element (33) passes. One end of the conductive element (33) through the second riveting hole (321) is provided with a second riveting head formed by expansion riveting. The second riveting head is interference-fitted with the second riveting hole (321).

4. The power strip according to claim 2, characterized in that: The conductive component (33) has a molding part (330) in the middle. The outer circumferential surface of the molding part (330) is uniformly distributed with annular continuous tooth-shaped molding protrusions. The molding part (330) is embedded in the insert base (31) and is integrally injection molded with the insert base (31).

5. The power strip according to claim 1, characterized in that: The socket base (31) is divided into a ground wire cavity (312), a live wire cavity (313), and a neutral wire cavity (314) by a Y-shaped first partition (311). The live wire cavity (313) and the neutral wire cavity (314) are arranged opposite to each other on both sides of the ground wire cavity (312). The ground wire cavity (312), the live wire cavity (313), and the neutral wire cavity (314) are respectively provided with a ground wire connection unit (37), a live wire connection unit (35), and a neutral wire connection unit (36) as connection units.

6. The power strip according to claim 5, characterized in that: The bottom of the socket base (31) is provided with at least three support columns (315) corresponding to the ground wire cavity (312), the live wire cavity (313) and the neutral wire cavity (314) respectively. The support columns (315) are provided with drainage channels (316). The bottom of the housing (1) is provided with drainage holes (14) at the corresponding positions, which are aligned with the drainage channels (316) of the support columns (315), forming a continuous drainage path from the inside of the socket base (31), the drainage channels (316) to the drainage holes (14).

7. The power strip according to claim 6, characterized in that: The top of the drainage channel (316) is higher than the bottom surface of the socket base (31) and is connected to the corresponding cavity through the lateral communication port; and / or, the bottom of the support column (315) is provided with an annular first sealing ring (317), which is engaged with the bottom of the housing (1).

8. The power strip according to claim 5, characterized in that: The first partition (311) is provided with a waterproof gasket groove, and a Y-shaped second sealing ring (318) is embedded in the waterproof gasket groove. The second sealing ring (318) is in sealing contact with the bottom of the protective door assembly (5).

9. The power strip according to claim 1, characterized in that: It also includes a protective door assembly (5), which includes a protective door base (51), which is installed in the insert base (31) above the connecting unit and is provided with a movable protective door slide and a spring (50). The spring (50) is used to drive the protective door slide to block the connecting unit.

10. The power strip according to claim 9, characterized in that: The protective door base (51) is divided into a two-pole sliding groove (56) and a three-pole sliding groove (57) by a second partition (55); The protective door slide includes a two-pole slide (53) and a three-pole slide (54), which are slidably disposed in the two-pole slide groove (56) and the three-pole slide groove (57), respectively; The second partition (55) is provided with a spring groove (58) connecting the two-pole slide groove (56) and the three-pole slide groove (57). The two-pole slide (53) and the three-pole slide (54) are provided with spring portions (59) extending to the spring groove (58). The spring (50) is disposed in the spring groove (58) and its two ends are respectively connected to the spring portions (59) of the two-pole slide (53) and the three-pole slide (54).

11. The power strip according to claim 9, characterized in that: The inner wall of the insert base (31) is provided with positioning ribs, which make the protective door base (51) and the inner wall of the insert base (31) spaced apart. A limiting groove (514) is formed in the protective door base (51). The side of the waterproof bushing (52) is provided with a limiting plate (521) corresponding to the limiting groove (514). The limiting plate (521) is inserted into the corresponding limiting groove (514) for limiting and matching.

12. The power strip according to claim 1, characterized in that: It also includes a switch assembly (4), which includes a switch body (42) and a switch button (41) for controlling the on / off state of the switch body (42). The cable supplies power to the socket module (3) through the switch body (42).

13. The power strip according to claim 12, characterized in that: The switch body (42) is provided with switch terminals that are respectively connected to the cable and connector (34). The switch terminals are provided with a third riveting part, which is U-shaped and wrapped around the corresponding cable assembly (2) or connector (34) for conductive connection.

14. The power strip according to claim 12, characterized in that: The switch button (41) is surrounded by a corrugated elastic structure (44), the edge of which is press-fitted with the housing (1) to seal the switch hole on the housing (1) corresponding to the switch button (41).

15. The power strip according to claim 1, characterized in that: The cable assembly (2) includes a sheath (20), a first limiting rib (21) and a second limiting rib (22). The first limiting rib (21) and the second limiting rib (22) are spaced apart along the axial direction of the sheath (20). The housing (1) is provided with a first sealing groove (210) that is fitted onto the upper limit of the first limiting rib (21) and a second sealing groove (220) that is fitted onto the upper limit of the second limiting rib (22).

16. The power strip according to claim 1, characterized in that: The housing (1) includes a front shell (12) and a bottom shell (11), and an annular fifth sealing ring (16) is provided at the contact position of the front shell (12) and the bottom shell (11).

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