A socket strip and its manufacturing process

Abstract

The present invention discloses a power strip and its manufacturing process, comprising a housing and a socket module disposed within the housing; the housing is provided with two or more groups of external jacks; the socket module comprises an insulating inner frame, a conductive metal strip, and an insulating bottom cover; the insulating inner frame is integrally injection-molded to form two or more groups of socket main frames, with adjacent socket main frames connected as a whole via a first connecting portion; at least two conductive metal strips are provided, with two or more groups of conductive clips disposed on the conductive metal strips, with adjacent groups of conductive clips connected as a whole via a second connecting portion, and the conductive metal strips are disposed on the insulating inner frame; the insulating bottom cover is integrally injection-molded to form two or more groups of cover bodies, with adjacent cover bodies connected as a whole via a third connecting portion. By utilizing the individual modular design of the socket module and the ingenious design of the insulating inner frame, the conductive metal strip, and the insulating bottom cover, the socket module is suitable for continuous mold production, and different groups of required numbers can be produced in a common mold, thereby improving production efficiency and reducing costs.

Description

Technical Field

[0001] The present invention relates to the field of power strip technology, and in particular to a power strip and its manufacturing process. Background Art

[0002] There are two main types of power strips on the market:

[0003] 1. The socket inner frames are separately arranged, and a group of sockets (for example, two holes in a group or three holes in a group) is separately arranged on a socket inner frame. In this way, several socket inner frames are arranged inside the socket shell. For example, CN217656119U discloses a socket shell structure and a socket structure. The socket structure includes a socket shell, multiple sockets, a control switch and a terminal block. The sockets are installed in the corresponding first mounting holes. Since multiple sockets need to be configured, it is more troublesome to assemble many loose parts one by one and install and position these sockets. In addition, additional wires are required to form electrical connections between the multiple sockets, and the wiring operation is also more troublesome.

[0004] 2. A socket bracket portion is formed in the bottom shell of the socket, and the conductive terminal is installed on the bottom shell of the socket. For example, CN217934279U discloses a socket for a wireless power strip and a wireless power strip. The socket for the wireless power strip includes an L-pole socket, an N-pole socket and an E-pole socket. The E-pole socket is located between the L-pole socket and the N-pole socket. The L-pole socket includes an integrally formed L-pole socket body, an L-pole socket tongue and an L-pole socket body. The L-pole socket tongue is connected to the side of the L-pole socket body; the N-pole socket includes an integrally formed N-pole socket body, an N-pole socket tongue and an N-pole socket body. The N-pole socket tongue is connected to the side of the N-pole socket body; the E-pole socket includes an integrally formed E-pole socket body, an E-pole socket tongue and an E-pole socket body. The E-pole socket tongue is connected to the end of the E-pole socket body. The use of sockets for wireless power strips eliminates the need for additional wires to form electrical connections between multiple sockets. However, the structure of the base shell of each socket is more complex and the production is more difficult. For power strip products, the overall production efficiency is not ideal.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Summary of the Invention

[0006] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a power strip and its manufacturing process. By integrating the modular design of the socket module and the insulated inner frame, conductive metal strip, and insulating bottom cover into a clever design, the present invention is suitable for continuous mold production. Different group requirements can all be produced in the same mold, thereby improving production efficiency and reducing costs.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A power strip comprises a housing and a socket module disposed inside the housing; wherein the housing is provided with two or more sets of external sockets;

[0009] The socket module includes an insulating inner frame, a conductive metal strip and an insulating bottom cover;

[0010] The insulating inner frame is integrally injection-molded to form two or more groups of socket main frames, and the socket main frames of two adjacent groups are connected into one body through a first connecting portion. The socket main frame is provided with an inner plug hole, and the inner plug hole is correspondingly provided with the outer plug hole;

[0011] At least two conductive metal strips are provided, one of which is a neutral wire and the other is a live wire; more than two groups of conductive clips are provided on the conductive metal strip, and the conductive clips of two adjacent groups are connected into one body by a second connecting portion, and the conductive metal strip is provided on the insulating inner frame, and the conductive clips are located in the corresponding inner plug holes; wherein, the conductive metal strip includes a base plate and a side plate, the front end of the side plate is connected to one side of the base plate, and the side plate is provided with at least a first bend, a second bend and a third bend arranged at intervals along the front-to-back direction, the side plate is bent outward at the first bend, and is bent inward at the second bend, and is bent inward at the third bend, so that the conductive clip on the side plate is bent to form a U-shape;

[0012] The insulating bottom cover is integrally injection molded to form more than two groups of cover bodies, and the cover bodies of two adjacent groups are connected into one body through a third connecting part; the insulating bottom cover is arranged at the bottom of the insulating inner frame to block and position the conductive metal strip, and the cover body is correspondingly located at the bottom of the socket main frame.

[0013] As a preferred solution, a positioning hole is provided at the bottom of the cover, a corresponding positioning column is provided at the inner bottom of the shell, the socket module is placed inside the shell, and the positioning column is embedded in the corresponding positioning hole.

[0014] As a preferred solution, a buckle portion is provided on the side of the socket main frame, and a buckle hole is provided on the cover body. The insulating bottom cover is assembled from bottom to top toward the insulating inner frame so that the buckle portion is locked in the corresponding buckle hole.

[0015] As a preferred solution, the bottom of the socket main frame is recessed upward with a mounting groove; one of the conductive metal strips is inserted into the top of the mounting groove, and the other conductive metal strip is inserted into the bottom of the mounting groove, so that the two conductive metal strips maintain an upper and lower spacing.

[0016] As a preferred solution, a stopper is provided on the inner side of the mounting groove, and the conductive metal strip squeezes the stopper to fit into the top of the mounting groove and is limited between the top surface of the stopper and the top surface of the mounting groove.

[0017] As a preferred solution, three conductive metals are provided, which also include a ground wire, and the ground wire is installed on the left side or the right side of the insulating inner frame.

[0018] As a preferred solution, the neutral wire and the live wire are respectively installed on the left and right sides of the insulating inner frame; upper ribs are provided on the left and right sides of the socket main frame, and lower ribs are provided on the left and right sides of the cover body. The upper side of the conductive metal strip is limited by the bottom end of the upper rib, the cover body limits the lower side of the conductive metal strip, and the lower rib limits the outer side of the conductive metal strip.

[0019] As a preferred embodiment, a terminal is provided on the second connecting portion, and the terminal includes a first terminal and a second terminal arranged adjacent to each other; and, after one end of the conductive metal strip is cut, the first terminal is retained, and after the other end is cut, the second terminal is retained, and the first terminal and the second terminal at both ends are respectively exposed at both ends of the insulating inner frame.

[0020] As a preferred solution, a jack partition panel is assembled on the top of the socket main frame, and an avoidance hole is provided on the jack partition panel, and the avoidance hole is provided corresponding to the inner jack. A hinge shaft is provided at the left or right end of the jack partition panel, and the hinge shaft extends into the hinged movable groove of the socket main frame, so that the jack partition panel can swing around the left and right axial directions relative to the socket main frame, and the hinge shaft has a translational movable space along the front and back directions in the hinged movable groove.

[0021] A process for manufacturing a power strip, wherein the power strip is any of the power strips described above, and the manufacturing process comprises the following steps:

[0022] Step 1: Prepare a housing and a socket module respectively; wherein the insulating inner frame and the insulating bottom cover of the socket module are separately injection molded, and the conductive metal strip is cut to a corresponding length on the continuous terminal strip; when assembling the socket module, the conductive metal strip is installed in the insulating inner frame, and then the insulating bottom cover is assembled to the bottom of the insulating inner frame;

[0023] Step 2: Install the socket module into the housing.

[0024] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it mainly realizes the modular design of the socket module and the ingenious structural design of the insulating inner frame, the conductive metal strip and the insulating bottom cover. Different groups of requirements can be produced in the same mold. According to the length and requirements of the power strip, several groups of jacks need to be designed and then cut accordingly. The integrated molding is easy to produce and manufacture, improves production efficiency and reduces production costs. Moreover, the shell structure of the power strip becomes very simple, and the shell and socket module of the power strip product can be manufactured separately, which is convenient for parallel production, further helping to improve the overall production efficiency of the power strip.

[0025] Furthermore, the bent structure of the conductive metal strip makes the overall width of the terminal material narrower, saving metal sheet materials. Moreover, the contact area of ​​the conductive clip c can be made larger, which is conducive to improving the reliability of conductive contact.

[0026] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a three-dimensional schematic diagram of a power strip according to the first embodiment of the present invention;

[0028] Figure 2 is another perspective schematic diagram of the power strip according to the first embodiment of the present invention;

[0029] Figure 3 This is a first exploded schematic diagram of the power strip according to the first embodiment of the present invention;

[0030] Figure 4 This is a second exploded schematic diagram of the power strip according to the first embodiment of the present invention;

[0031] Figure 5 This is a third exploded schematic diagram of the power strip according to the first embodiment of the present invention;

[0032] Figure 6 1 is a perspective schematic diagram of a socket module of a power strip according to a first embodiment of the present invention;

[0033] Figure 7 is another perspective schematic diagram of the socket module of the power strip according to the first embodiment of the present invention;

[0034] Figure 8 This is an exploded schematic diagram of the socket module of the power strip according to the first embodiment of the present invention;

[0035] Figure 8A It is a partial enlarged view of the conductive metal strip;

[0036] Figure 9 This is another exploded schematic diagram of the socket module of the power strip according to the first embodiment of the present invention;

[0037] Figure 10 yes Figure 9 A partial enlarged view of

[0038] Figure 11 This is a three-dimensional schematic diagram of the socket module of the power strip according to the second embodiment of the present invention;

[0039] Figure 12 This is another perspective schematic diagram of the socket module of the power strip according to the second embodiment of the present invention;

[0040] Figure 13 This is an exploded schematic diagram of the socket module of the power strip according to the second embodiment of the present invention;

[0041] Figure 14 This is another exploded schematic diagram of the socket module of the power strip according to the second embodiment of the present invention;

[0042] Figure 15 This is a three-dimensional schematic diagram of the socket module of the power strip according to the third embodiment of the present invention;

[0043] Figure 16 is another perspective schematic diagram of the socket module of the power strip according to the third embodiment of the present invention;

[0044] Figure 17 This is an exploded schematic diagram of the socket module of the power strip according to the third embodiment of the present invention;

[0045] Figure 18 This is another exploded schematic diagram of the socket module of the power strip according to the third embodiment of the present invention;

[0046] Figure 19A Schematic diagram of the continuous injection molding of the insulating inner frame of the socket module of the power strip according to the third embodiment of the present invention and cutting according to the required number of groups;

[0047] Figure 19B Schematic diagram of the continuous stamping and cutting of the live wire conductive metal strips of the socket module of the power strip according to the third embodiment of the present invention;

[0048] Figure 19C Schematic diagram of the continuous stamping and cutting of the ground wire conductive metal strips of the socket module of the power strip according to the third embodiment of the present invention;

[0049] Figure 19D Schematic diagram of the continuous stamping and cutting of the neutral wire conductive metal strip of the socket module of the power strip according to the third embodiment of the present invention;

[0050] Figure 19E This is a schematic diagram of the continuous injection molding of the insulating bottom cover of the socket module of the power strip according to the third embodiment of the present invention and cutting according to the required number of groups;

[0051] Figure 20A This is a schematic diagram of the continuous injection molding of the insulating inner frame of the socket module of the power strip according to the fourth embodiment of the present invention and cutting according to the required number of groups;

[0052] Figure 20B Schematic diagram of the continuous stamping and cutting of the live wire conductive metal strips of the socket module of the power strip according to the fourth embodiment of the present invention;

[0053] Figure 20C Schematic diagram of the continuous stamping and cutting of the ground wire conductive metal strips of the socket module of the power strip according to the fourth embodiment of the present invention;

[0054] Figure 20D Schematic diagram of the continuous stamping and cutting of the neutral wire conductive metal strip of the socket module of the power strip according to the fourth embodiment of the present invention;

[0055] Figure 20E Schematic diagram of continuous injection molding of the insulating bottom cover of the socket module of the power strip according to the fourth embodiment of the present invention and cutting according to the required number of groups.

[0056] Description of the accompanying drawings:

[0057] Housing 10, socket module 20, switch assembly 30, USB interface assembly 40, bottom shell 101, top shell 102, external jack 11, buckle portion 12, extension portion 13, buckle hole 14, positioning column 15, partition wall 16, insulating inner frame 201, conductive metal strip 202, insulating bottom cover 203, jack partition panel 204, socket main frame 21, upper rib 211, first connecting portion 22, inner jack 23, cover 24, lower rib 241, third connecting portion 25, positioning hole 26, buckle hole 27, mounting slot 28, stopper 29, conductive clip 1, first terminal 2, second terminal 3 , avoidance hole 4, hinge shaft 5, hinged movable groove 6, limit part 7, anti-slip part 8, second connecting part 9, live wire conductive metal strip 2021, neutral wire conductive metal strip 2022, ground wire conductive metal strip 2023, conductive terminal 1', substrate a1, side panel a2, horizontal extension part a21, longitudinal extension part a22, longitudinal connecting strip a221, clip a222, clip groove a223, first bending point b1, second bending point b2, third bending point b3, fourth bending point b4, conductive clip c, side panel a2' of other structural forms, front and rear length value L1, left and right width value L2, cutting position K. DETAILED DESCRIPTION

[0058] Please refer to Figures 1 to 20E As shown, it shows the specific structure of various embodiments of the present invention.

[0059] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0060] like Figures 1 to 10 As shown in the first embodiment, a power strip includes a housing 10 and a socket module 20 disposed inside the housing 10 . Typically, a switch component 30 and a USB interface component 40 are also disposed inside the housing 10 .

[0061] The outer shell 10 is provided with more than two groups of external jacks 11; in this embodiment, the outer shell 10 includes a bottom shell 101 and a surface shell 102, the structures of the bottom shell 101 and the surface shell 102 are relatively simple, the external jacks 11 are provided on the surface shell 102, the inner side surface of the bottom shell 101 is provided with a buckle 12, the lower end of the surface shell 102 extends downward with an extension portion 13, the extension portion 13 is provided with a card hole 14, the extension portion 13 extends into the interior of the bottom shell 101, the buckle 12 hangs on the card hole 14, so that the surface shell 102 and the bottom shell 101 are assembled and positioned.

[0062] The socket module 20 includes an insulating inner frame 201 , a conductive metal strip 202 , and an insulating bottom cover 203 .

[0063] The insulating inner frame 201 is integrally formed to form more than two groups of socket main frames 21. Adjacent socket main frames 21 are connected into one body through a first connecting portion 22. An inner plug hole 23 is provided on the socket main frame 21, and the inner plug hole 23 is corresponding to the outer plug hole 11.

[0064] The conductive metal strip 202 is mounted on the insulating inner frame 201 and extends into the inner socket 23. Specifically, at least two conductive metal strips 202 are provided, one for the neutral line and the other for the live line. Two or more groups of conductive clips 1 are mounted on the conductive metal strip 202. Each group of conductive clips 1 includes at least one conductive terminal 1' adapted for the inner socket 23. In this embodiment, each group of conductive clips 1 includes two conductive terminals 1' arranged side by side. Adjacent groups of conductive clips 1 are connected to form a single body via a second connecting portion 9. The conductive metal strip 202 is mounted on the insulating inner frame 201, and the conductive terminals 1' of the conductive clips 1 are located within corresponding inner sockets 23.

[0065] The insulating bottom cover 203 is positioned at the bottom of the insulating inner frame 201 to block and position the conductive metal strip 202. The insulating bottom cover 203 is integrally formed to form two or more sets of covers 24. Adjacent covers 24 are connected to form a single body via a third connecting portion 25. The covers 24 are positioned at the bottom of the socket main frame 21. Positioning holes 26 are provided at the bottom of the covers 24, and corresponding positioning posts 15 are provided on the inner bottom of the housing 10. The socket module 20 is placed within the housing 10, and the positioning posts 15 are embedded in the corresponding positioning holes 26. In this way, the socket module 20 is securely installed and positioned within the housing 10. The side of the socket main frame 21 is provided with a snap portion 12, and the cover body 24 is provided with a snap hole 27. The insulating bottom cover 203 is assembled from bottom to top toward the insulating inner frame 201, so that the snap portion 12 is locked into the corresponding snap hole 27, thereby achieving the installation and positioning of the insulating bottom cover 203 on the bottom of the insulating inner frame 201. The bottom of the socket main frame 21 is provided with an upwardly recessed mounting groove 28; two conductive metal strips 202 are provided, one for the neutral wire and the other for the live wire. One conductive metal strip 202 is locked into the top of the mounting groove 28, and the other conductive metal strip 202 is locked into the bottom of the mounting groove 28, so that the two conductive metal strips 202 maintain a vertical spacing. The two conductive metal strips 202 are installed at different heights, and are positioned separately from top to bottom. A stopper 29 is provided inside the mounting groove 28. The conductive metal strip 202 presses against the stopper 29 to fit within the top of the mounting groove 28 and is constrained between the top surface of the stopper 29 and the top surface of the mounting groove 28. Terminals are provided on the conductive metal strip 202 corresponding to the area between two adjacent sets of conductive clips 1. These terminals include adjacent first and second terminals 2 and 3. Thus, the conductive metal strip 202 is a continuous, long strip design that can be cut to the desired length. For example, in this embodiment, three sets of conductive clips 1 are cut, leaving the first and second terminals 2 and 3 at the ends of the cut conductive metal strip 202. The ends of the conductive metal strip 202 protrude from the ends of the insulating inner frame 201. The top of the socket main frame 21 is assembled with a socket partition panel 204, and the socket partition panel 204 is provided with an avoidance hole 4, and the avoidance hole 4 is provided corresponding to the inner socket 23. The left end or the right end of the socket partition panel 204 is provided with a hinge shaft 5, and the hinge shaft 5 extends into the hinge movable groove 6 of the socket main frame 21, so that the socket partition panel 204 can swing around the left and right axial directions relative to the socket main frame 21, and the hinge shaft 5 has a translational activity space along the front and back directions in the hinge movable groove 6.

[0066] The switch assembly 30 and USB interface assembly 40 are located at the front and rear ends of the socket module 20, respectively. The switch assembly 30 includes a switch circuit board and a switch button disposed on the switch circuit board, while the USB interface assembly 40 includes an interface circuit board and a USB interface disposed on the interface circuit board. The number and type of USB interfaces are not limited to one or one type, and examples include USB Type-A, Type-C, and Micro-USB interfaces. The switch assembly 30 is connected to the power strip cable. One end of the conductive metal strip 202 of the socket module 20 is electrically connected to the switch assembly 30, and the other end of the conductive metal strip 202 of the socket module 20 is electrically connected to the USB interface assembly 40. The USB interface assembly 40 is exposed on the housing 10 to form a USB interface, facilitating connection with a USB plug.

[0067] like Figure 8A As shown, the conductive metal strip includes a substrate a1 and a side panel a2; the substrate a1 is extended forward and backward, and some positioning holes and / or process holes are usually provided on the substrate a1; one end of the side panel a2 is connected to one side of the substrate a1; the side panel a2 is extended forward and backward along the side edge of the substrate a1, and the side panel a2 maintains a distance from the substrate a1; the side panel a2 is provided with at least a first bend b1, a second bend b2 and a third bend b3 arranged at intervals along the front-to-back direction, the side panel a2 is bent outward at the first bend b1, and is bent inward at the second bend b2 and is bent inward at the third bend b3, so that: a U-shaped conductive clip c is bent on the side panel a2. The side panel a2 is further provided with a fourth bend b4, located forward of the first bend b1. The side panel a2 is bent upward or downward at the fourth bend b4. In an actual design, the side panels a2 are connected to the left and right sides of the substrate a1, respectively, and two or more side panels a2 are provided on the left or right side of the substrate a1, spaced apart in the front-to-back direction, such that the conductive terminal has multiple U-shaped conductive clips c.

[0068] Specifically, the side panel a2 includes a transverse extension portion a21 and a longitudinal extension portion a22; one end of the transverse extension portion a21 is integrally connected to one side of the substrate a1, and the other end of the transverse extension portion a21 extends outward away from the substrate a1; the front end of the longitudinal extension portion a22 is connected to the other end of the transverse extension portion a21, and the rear end of the longitudinal extension portion a22 extends backward beside the side of the substrate a1; the first bending point b1, the second bending point b2 and the third bending point b3 are arranged on the longitudinal extension portion a22, and the fourth bending point b4 is arranged on the transverse extension portion a21. The substrate a1 and the side panel a2 are integrally punched and bent parts of the same metal plate; the plate thickness direction of the substrate a1 is the up-down direction; the portion of the lateral extension portion a21 corresponding to the fourth bend b4 close to one end of the lateral extension portion a21 has a plate thickness direction of the up-down direction, that is: the thickness direction of the portion of the lateral extension portion a21 located between one end of the lateral extension portion a21 and the fourth bend b4 is the up-down direction; after the side panel a2 is bent upward or downward at the fourth bend b4, the plate thickness direction of the portion of the lateral extension portion a21 corresponding to the fourth bend b4 away from one end of the lateral extension portion a21 has a plate thickness direction of the left-right direction; therefore, the plate thickness direction of the conductive clip c is the defined horizontal direction. The longitudinal extension portion a22 includes a longitudinal connecting strip a221 and two clips a222. The front end of the longitudinal connecting strip a221 is integrally connected to the other end of the transverse extension portion a21, and the rear end of the longitudinal connecting strip a221 extends rearward from the side of the substrate a1. When not bent, the distance between the longitudinal connecting strip a221 and the side of the substrate a1 is generally the left-right width of the transverse extension portion a21. The clips a222 are integrally connected to the inner side of the longitudinal connecting strip a221, and the two clips a222 maintain a front-to-back distance. After bending, the two clips a222 are arranged on opposite sides to form a clamping groove a223. In order to improve the reliability of the clamping contact, one or both clips a222 are typically contact springs protruding toward the clamping groove. When not bent, the front-to-back length L1 of the clip a222 is greater than the left-to-right width L2. Sufficient dimensions in the front-to-back direction are used to design the front-to-back length L1 of the clip. Therefore, on a metal plate with sufficiently narrow left and right widths, the clip can still be freely and flexibly set to a sufficient front-to-back length to meet the contact area requirements and improve contact reliability.

[0069] It should be noted that the conductive terminal can adopt the above-mentioned side plate a2 structure on one side or both sides, such as Figure 1-6As shown, it shows an embodiment in which the side plate a2 structure described above is adopted on both sides. If the side plate a2 structure described above is designed on only one side of the substrate a1, the side plate a2 and the conductive clip may not be provided on the other side, or as shown in FIG. Figures 7 to 9 As shown, other structural forms of side panels a2' can be provided on the other side, which will not be listed one by one in this article.

[0070] Part or all of the conductive metal strips of the power strip can adopt this bending structure, and the overall width of the terminal material is narrower on both sides, saving metal sheet materials. Moreover, the contact area of ​​the conductive clip c can be made larger, which is conducive to improving the reliability of conductive contact.

[0071] Next, a manufacturing process of a power strip is provided. The power strip is any of the power strips described above, and the manufacturing process includes the following steps:

[0072] Step 1: Prepare a housing and a socket module respectively; wherein the insulating inner frame and the insulating bottom cover of the socket module are separately injection molded, and the conductive metal strip is cut to a corresponding length on the continuous terminal strip; when assembling the socket module, the conductive metal strip is installed in the insulating inner frame, and then the insulating bottom cover is assembled to the bottom of the insulating inner frame;

[0073] Step 2: Install the socket module into the housing.

[0074] Specifically, a feasible assembly process of the power strip of Example 1 is introduced:

[0075] (1) A bottom shell 101, a front shell 102, a socket module 20, a switch assembly 30, and a USB interface assembly 40 are respectively manufactured; wherein, the bottom shell 101 and the front shell 102 are respectively manufactured by injection molding; the insulating inner frame 201, the insulating bottom cover 203, and the jack partition panel 204 of the socket module 20 are respectively manufactured by injection molding, and the insulating inner frame 201 and the insulating bottom cover 203 are continuously injection molded and cut according to the required number of groups. A long thin plate-type insulating material piece (having a certain hardness and being able to meet the cutting requirements) can be preset in advance, and the long thin plate-type insulating material piece passes through the injection mold, and a plurality of socket main frames (or cover bodies) are injection molded on the long thin plate-type insulating material piece. This continuous injection molding method is the same / similar to the method of injecting plastic parts on metal strips commonly used in the industry. The main difference is that the metal strip is replaced with a long thin plate-type insulating material piece. Of course, the insulating inner frame 201 and the insulating bottom cover 203 can also be designed to have an injection mold as a common mold within a set range of N groups. For example, the accessories in the injection mold are designed as more than two independent modules: a first module, a second module, a third module, and so on. If the insulating inner frame to be injection molded has two groups of socket main frames, it can be achieved by using the first module (baffles are provided at both ends of the first module). If the insulating inner frame to be injection molded has three groups of socket main frames, it can be achieved by using the first module in combination with the second module (baffles are provided at one outer end of the first module and one outer end of the second module, respectively, and the adjacent ends of the two are connected to form a cavity that can be used to injection mold an insulating inner frame with two groups of socket main frames as one body). If the insulating inner frame to be injection molded has four groups of socket main frames, it can be achieved by using the first module in combination with the second module and the third module (similarly, adjacent modules are connected, and baffles are provided at the two outermost ends to form a cavity that can be used to injection mold an insulating inner frame with three groups of socket main frames as one body). Similarly, the insulating bottom cover can also be made by such a co-molding method. The conductive metal strip 202 can be made of a continuous long strip of conductive metal strip 202 material, and the corresponding length can be cut as needed. When assembling the socket module 20, one of the conductive metal strips 202 is inserted into the top of the mounting groove 28 of the insulating inner frame 201, and the other conductive metal strip 202 is inserted into the bottom of the mounting groove 28 of the insulating inner frame 201. Then, the insulating bottom cover 203 is assembled to the bottom of the insulating inner frame 201, and the buckle portion 12 is stuck in the corresponding buckle hole 27 to achieve the installation and positioning of the insulating bottom cover 203 at the bottom of the insulating inner frame 201. In addition, the jack partition panel 204 is assembled to the top of the socket main frame 21, and the hinge shaft 5 extends into the hinged movable groove 6 of the socket main frame 21. The limit portion 7 at the other end is also stuck under the anti-slip portion 8 of the socket main frame 21.

[0076] (2) The switch assembly 30, the USB interface assembly 40, and the socket module 20 are respectively installed in the bottom shell 101. The bottom shell 101 is provided with installation positions for the switch assembly 30, the USB interface assembly 40, and the socket module 20, so that these switch assembly 30, the USB interface assembly 40, and the socket module 20 can be placed in the corresponding installation positions and positioned. A partition wall 16 is provided between the installation position of the USB interface assembly 40 and the installation position of the socket module 20. The socket module 20 is placed in the corresponding installation position, and the positioning column 15 provided on the inner bottom of the shell 10 is embedded in the bottom positioning hole 26 of the socket module 20. In this way, the socket module 20 is reliably installed and positioned inside the shell 10.

[0077] (3) Assemble the front shell 102 onto the bottom shell 101, and the buckle 12 of the bottom shell 101 hooks the clamping hole 14 of the front shell 102, so that the front shell 102 and the bottom shell 101 form an assembled position.

[0078] like Figures 11 to 14 As shown, it shows the structure of the socket module of the second embodiment. The structure of the second embodiment is basically the same as that of the first embodiment, and the main difference is:

[0079] First, the two conductive metal strips 202 of Example 2 are respectively mounted on the left and right sides of the insulating inner frame 201. The left and right sides of the socket main frame 21 are used to separate and position the two conductive metal strips 202, resulting in an ideal insulation and separation effect. Specifically, upper ribs 211 are provided on both the left and right sides of the socket main frame 21, with the bottom ends of the upper ribs 211 serving as upper positioning surfaces for the conductive metal strips 202. Lower ribs 241 are provided on both the left and right sides of the cover 24. The cover 24 limits the lower side of the conductive metal strips 202, while the lower ribs 241 limit the outer side of the conductive metal strips 202. In this way, the conductive metal strip 202 is installed on the insulating inner frame 201, and the upper side of the conductive metal strip 202 is limited by the bottom end (upper positioning surface) of the upper rib 211. Then the insulating bottom cover 203 is assembled to the bottom of the socket main frame 21. The cover body 24 limits the lower side of the conductive metal strip 202, and uses the lower rib 241 to block the outside of the conductive metal strip 202 to limit the outside of the conductive metal strip 202.

[0080] Second, the second embodiment has five groups of jacks, each group including two jacks, while the first embodiment has three groups of jacks, each group including two jacks arranged side by side and three jacks arranged in a triangle. In actual design, the number of jack groups and the arrangement of jacks in each group are not limited to those in the first and second embodiments.

[0081] like Figures 15 to 19EAs shown, it shows the structure of the socket module of Example 3. The structure of Example 3 is basically the same as that of Example 1. The main difference is that in Example 3, three conductive metals are provided, including a neutral wire, a live wire and a ground wire, that is, on the basis of Example 1, a ground wire is also included. In actual layout, the ground wire can be installed on the left or right side of the insulating inner frame.

[0082] With reference to the first and third embodiments, in actual production, for sockets of the same specification (for example, the arrangement of each group of jacks in the first and third embodiments is the same) but with different numbers of groups, they can be produced in a common mold. According to the length and requirements of the strip, the number of groups of jacks to be designed can be cut accordingly (the dotted line indicates the approximate position of the cut-off line). Figures 19A to 19E As shown, the insulating inner frame 201, the live wire conductive metal strip 2021, the neutral wire conductive metal strip 2022, the ground wire conductive metal strip 2023, and the insulating bottom cover 203 are all in a continuous material strip during production. The insulating inner frame 201 and the insulating bottom cover 203 are injection molded separately. A cutting machine is provided on the discharge side of the injection molding machine. For the insulating inner frame production line, the insulating inner frame 201 with the corresponding number of socket main frames 21 is cut out (for example, in the third embodiment, each insulating inner frame has 6 groups of socket main frames 21). For the insulating bottom cover production line, the insulating inner frame 201 with the corresponding number of socket main frames 21 is cut out. The insulating bottom cover 203 has a number of cover bodies 24 (each insulating bottom cover 203 has 6 groups of cover bodies 24), and the live wire conductive metal strip 2021, the neutral wire conductive metal strip 2022, and the ground wire conductive metal strip 2023 are respectively formed by metal stamping. For example, a cutting machine can be set on the discharge side of the stamping machine to cut the live wire conductive metal strip 2021 with a corresponding number of conductive clips 1. After cutting, one end of the live wire conductive metal strip retains the first terminal, and after cutting, the other end retains the second terminal (the same is true for the neutral wire conductive metal strip 2022 and the ground wire conductive metal strip 2023).

[0083] like Figures 20A to 20E As shown, if only three groups of inner jacks are provided, corresponding groups of insulating inner frames 201, live wire conductive metal strips 2021, neutral wire conductive metal strips 2022, ground wire conductive metal strips 2023, and insulating bottom covers 203 can be cut during production.

[0084] It should be noted that, for the first embodiment, a ground wire conductive metal strip may also be arranged so that the ground wire jack is provided with a corresponding conductive terminal.

[0085] The design focus of the present invention is that it mainly combines the independent modular design of the socket module and the insulated inner frame, conductive metal strip, and insulating bottom cover with an ingenious structural design, so that different groups of requirements can be produced in a common mold. According to the length and requirements of the power strip, several groups of jacks need to be designed and then cut accordingly. The one-piece molding is easy to produce, improves production efficiency, and reduces production costs. Moreover, the shell structure of the power strip becomes very simple, and the shell and socket module of the power strip product can be produced separately, which is convenient for parallel production, further helping to improve the overall production efficiency of the power strip.

[0086] Furthermore, the bent structure of the conductive metal strip makes the overall width of the terminal material narrower, saving metal sheet materials. Moreover, the contact area of ​​the conductive clip c can be made larger, which is conducive to improving the reliability of conductive contact.

[0087] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A power strip, characterized by: It comprises a housing and a socket module arranged inside the housing; wherein the housing is provided with two or more sets of external jacks; The socket module includes an insulating inner frame, a conductive metal strip and an insulating bottom cover; The insulating inner frame is integrally injection-molded to form two or more groups of socket main frames, and the socket main frames of two adjacent groups are connected into one body through a first connecting portion. The socket main frame is provided with an inner plug hole, and the inner plug hole is correspondingly provided with the outer plug hole; At least two conductive metal strips are provided, one of which is a neutral wire and the other is a live wire; more than two groups of conductive clips are provided on the conductive metal strip, and the conductive clips of two adjacent groups are connected into one body by a second connecting portion, and the conductive metal strip is provided on the insulating inner frame, and the conductive clips are located in the corresponding inner plug holes; wherein, the conductive metal strip includes a base plate and a side plate, the front end of the side plate is connected to one side of the base plate, and the side plate is provided with at least a first bend, a second bend and a third bend arranged at intervals along the front-to-back direction, the side plate is bent outward at the first bend, and is bent inward at the second bend, and is bent inward at the third bend, so that the conductive clip on the side plate is bent to form a U-shape; The insulating bottom cover is integrally injection molded to form more than two groups of cover bodies, and the cover bodies of two adjacent groups are connected into one body through a third connecting part; the insulating bottom cover is arranged at the bottom of the insulating inner frame to block and position the conductive metal strip, and the cover body is correspondingly located at the bottom of the socket main frame.

2. The power strip according to claim 1, wherein: The bottom of the cover is provided with a positioning hole, the inner bottom of the shell is provided with a corresponding positioning column, the socket module is placed inside the shell, and the positioning column is embedded in the corresponding positioning hole.

3. The power strip according to claim 1, wherein: A buckle portion is provided on the side of the socket main frame, and a buckle hole is provided on the cover body. The insulating bottom cover is assembled from bottom to top toward the insulating inner frame so that the buckle portion is locked in the corresponding buckle hole.

4. The power strip according to claim 1, wherein: The bottom of the socket main frame is recessed upwardly with a mounting groove; one conductive metal strip is inserted into the top of the mounting groove, and the other conductive metal strip is inserted into the bottom of the mounting groove, so that the two conductive metal strips maintain a vertical spacing.

5. The socket strip according to claim 4, characterized in that: A stopper is provided inside the installation slot, and the conductive metal strip presses the stopper to fit into the top of the installation slot and is confined between the top end surface of the stopper and the top end surface of the installation slot.

6. The socket strip according to claim 1 or 4, characterized in that: The conductive metal is provided with three strips, which also include a ground wire, and the ground wire is installed on the left side or the right side of the insulating inner frame.

7. The socket strip according to claim 1, characterized in that: The neutral wire and the live wire are respectively installed on the left and right sides of the insulating inner frame; upper ribs are provided on the left and right sides of the socket main frame, and lower ribs are provided on the left and right sides of the cover body. The upper side of the conductive metal strip is limited by the bottom end of the upper rib, the cover body limits the lower side of the conductive metal strip, and the lower ribs limit the outer side of the conductive metal strip.

8. The power strip according to claim 1, characterized in that: The second connecting portion is provided with a wiring terminal, and the wiring terminal includes a first wiring terminal and a second wiring terminal arranged adjacent to each other; and, after one end of the conductive metal strip is cut, the first wiring terminal is retained, and after the other end is cut, the second wiring terminal is retained, and the first wiring terminal and the second wiring terminal at both ends are respectively exposed at both ends of the insulating inner frame.

9. The power strip according to claim 1, characterized in that: A socket partition panel is assembled on the top of the socket main frame, and an avoidance hole is provided on the socket partition panel. The avoidance hole is provided corresponding to the inner socket. A hinge shaft is provided at the left or right end of the socket partition panel, and the hinge shaft extends into the hinged movable groove of the socket main frame, so that the socket partition panel can swing around the left and right axial directions relative to the socket main frame, and the hinge shaft has a translational movable space along the front and back directions in the hinged movable groove.

10. A process for manufacturing a power strip, characterized by: The power strip is the power strip according to any one of claims 1 to 9, and the manufacturing process includes the following steps: Step 1: Prepare a housing and a socket module respectively; wherein the insulating inner frame and the insulating bottom cover of the socket module are separately injection molded, and the conductive metal strip is cut to a corresponding length on the continuous terminal strip; when assembling the socket module, the conductive metal strip is installed in the insulating inner frame, and then the insulating bottom cover is assembled to the bottom of the insulating inner frame; Step 2: Install the socket module into the housing.

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