Plug and preparation method thereof

Abstract

The invention belongs to the technical field of power supplies, and particularly discloses a plug and a preparation method thereof. The plug comprises a housing, a fixed support and a bolt. The shell accommodates the fixed bracket; the fixed bracket is provided with a bolt hole and a positioning piece; the plug pin is inserted into the plug pin hole, the first end of the plug pin extends into the shell, the second end of the plug pin extends out of the shell, the first end and the second end are oppositely arranged, the plug pin is provided with a first group of grooves and a second group of grooves which are arranged at intervals in the length direction of the plug pin, and the first group of grooves are closer to the first end than the second group of grooves; and the positioning piece can be respectively matched with the first group of grooves and the second group of grooves, so that the bolt is positioned at two different positions of the fixed bracket. The plug can be connected with an electric wire after being positioned by the fixing bracket, and is simple and convenient to install and operate.

Description

Technical Field

[0001] This disclosure relates to the field of power supply technology, and in particular to a plug and its manufacturing method. Background Technology

[0002] A plug is a device that connects electrical equipment to a power source. By inserting the plug, a circuit is made open, and power is supplied to electrical appliances. It is an indispensable electrical accessory in daily life and industrial production.

[0003] Currently, plugs typically consist of a housing, a mounting bracket, and a pin, with the pin located inside the housing and connected to the power cord. However, during plug installation, the pin requires additional equipment for positioning before being connected to the power cord, making the process complex. Summary of the Invention

[0004] This disclosure provides a plug and its manufacturing method, which can be positioned by its own fixing bracket and then connected to a wire, making installation simple and convenient. The technical solution is as follows:

[0005] On one hand, this disclosure provides a plug, which includes a housing, a fixing bracket, and a pin;

[0006] The housing accommodates the fixing bracket, which has a pin hole and a positioning element;

[0007] The pin is inserted into the pin hole, the first end of the pin extends into the housing, the second end of the pin extends out of the housing, the first end and the second end are arranged opposite to each other, the pin has a first set of grooves and a second set of grooves spaced apart along the length direction of the pin, wherein the first set of grooves is closer to the first end than the second set of grooves;

[0008] The positioning element can engage with the first set of grooves and the second set of grooves respectively, so that the pin is positioned at two different positions on the fixed bracket.

[0009] In one possible implementation, the positioning element is a protruding structure located on the wall of the pin hole.

[0010] In one possible implementation, the pin includes a pin portion and a terminal;

[0011] The terminal is fixedly connected to one end of the pin portion, and the first set of grooves and the second set of grooves are both located on the side of the pin portion near the terminal.

[0012] In one possible implementation, the first set of grooves includes two first grooves, which are disposed opposite to each other on both sides of the pin portion;

[0013] The second set of grooves includes two second grooves, which are disposed opposite to each other on both sides of the pin portion.

[0014] In one possible implementation, the pin portion also has an opening on the side near the terminal, the opening being located between the two second grooves.

[0015] In one possible implementation, the pin portion has a guide structure on the side away from the terminal, and the thickness of the guide structure gradually decreases in the direction away from the terminal.

[0016] In one possible implementation, the fixing bracket has a support member located on the side of the fixing bracket near the first end of the pin.

[0017] In one possible implementation, the support member includes a plurality of support ribs, which are spaced apart on the fixed bracket.

[0018] In one possible implementation, the number of pin holes is three, including a ground pin hole, an N-pole pin hole, and an L-pole pin hole;

[0019] The center of the ground electrode pin hole is located on the center line of the fixed bracket, and the N pole pin hole and the L pole pin hole are arranged opposite each other on both sides of the center line of the fixed bracket.

[0020] The plurality of supporting ribs include a plurality of first supporting sub-ribs and a plurality of second supporting sub-ribs, wherein the plurality of first supporting sub-ribs and the plurality of second supporting sub-ribs are respectively disposed on both sides of the ground electrode pin hole.

[0021] In one possible implementation, the fixing bracket further includes a limiting portion and a through hole;

[0022] The through hole is located between the N pole pin hole and the L pole pin hole;

[0023] The limiting part is disposed adjacent to the through hole and is integrally formed with the plurality of supporting ribs.

[0024] In one possible implementation, the support member includes a mesh skeleton structure disposed on the surface of the fixed bracket opposite to the second end of the pin.

[0025] On the other hand, this disclosure provides a method for manufacturing a plug, applicable to a plug as described in the above aspect, the method comprising:

[0026] The pin is inserted into the pin hole of the fixed bracket, and the pin is controlled to be inserted along the axial direction of the pin hole, so that the positioning member cooperates with the first set of grooves to achieve pre-positioning;

[0027] After connecting the pin to the automation wire, continue to control the pin to be inserted along the axial direction of the pin hole, so that the positioning member disengages from the first set of grooves and engages with the second set of grooves to achieve repositioning;

[0028] The mounting bracket is injection molded to form the outer shell.

[0029] The beneficial effects of the technical solutions provided in this disclosure include at least the following:

[0030] The plug provided in this embodiment inserts the second end of the pin into the pin hole of the fixing bracket, controlling the pin to insert along the axial direction of the pin hole. This allows the positioning member of the fixing bracket to engage with the first set of grooves on the pin for pre-positioning, facilitating automated wire riveting. After the pin is connected to the automated wire, the pin is further controlled to insert along the axial direction of the pin hole, causing the positioning member to disengage from the first set of grooves and engage with the second set of grooves for repositioning, thus fixing the pin to the fixing bracket. In this way, the plug can be positioned by its own fixing bracket before connecting to the wire, making installation simple and convenient.

[0031] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a plug provided in an embodiment of the present disclosure;

[0034] Figure 2 An exploded view of a plug provided in an embodiment of this disclosure;

[0035] Figure 3 This is a schematic diagram of a structure in which a fixing bracket and a pin are positioned in a set of grooves according to an embodiment of the present disclosure;

[0036] Figure 4 This is a schematic diagram of a structure in which a fixing bracket and a pin are positioned in another set of grooves according to an embodiment of the present disclosure;

[0037] Figure 5 This is a schematic diagram of a positioning element that mates with a first set of grooves, according to an embodiment of the present disclosure.

[0038] Figure 6 This is a schematic diagram of a positioning element cooperating with a second set of grooves, provided in an embodiment of this disclosure;

[0039] Figure 7 This is a schematic diagram of the structure of a latch provided in an embodiment of the present disclosure;

[0040] Figure 8 This is a schematic diagram of a pin from another angle, provided as an embodiment of the present disclosure;

[0041] Figure 9 This is a schematic diagram of a fixed bracket provided in an embodiment of the present disclosure;

[0042] Figure 10 This is a flowchart illustrating a method for preparing a plug according to an embodiment of the present disclosure.

[0043] The reference numerals in the figure indicate:

[0044] 1. Outer shell;

[0045] 2. Fixed bracket; 20. Pin hole; 20-1. Ground pin hole; 20-2. N-pole pin hole; 20-3. L-pole pin hole; 21. Positioning component; 22. Support component; 221. Support rib; 2211. First support sub-rib; 2212. Second support sub-rib; 23. Limiting part; 24. Through hole;

[0046] 3. Pin; 31. First end; 32. Second end; 33. First set of grooves; 331-First groove; 34. Second set of grooves; 341-Second groove; 35. Opening; 36. Guide structure; 301. Pin part; 302. Terminal.

[0047] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0048] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0049] It should be noted that, unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by a person of ordinary skill in the art to which this disclosure pertains.

[0050] It should be understood that the directional terms used in the embodiments of this disclosure, such as "upper," "lower," "top," "bottom," "front," "rear," and "side," are based on the arrangement of the pin. Specifically, the location of the first end of the pin is considered "top" or "upper," the location of the second end of the pin is considered "bottom" or "lower," the portion between the top and bottom is considered "side," the location of the outlet end is considered "front," and the location opposite to "front" is considered "rear." The use of these directional terms in the embodiments of this disclosure is merely for the purpose of more clearly describing the structures and the relationships between them, and is not intended to describe absolute locations; therefore, it should not be construed as a limitation of this disclosure.

[0051] To make the technical solutions and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0052] A plug is a device that connects electrical equipment to a power source. By inserting the plug, a circuit is made open, and power is supplied to electrical appliances. It is an indispensable electrical accessory in daily life and industrial production.

[0053] It should be noted that this disclosure relates to a plug, which can be a power plug, such as a plug for a power outlet, or a plug for an electrical appliance, such as a refrigerator or washing machine. The plug in the embodiments of this disclosure can be a plug with a power cord or a plug without a power cord. The plug in the embodiments of this disclosure can be a three-phase plug including an L pole, a N pole, and a ground pole, or a two-phase plug including an L pole and a N pole. The plug in the embodiments of this disclosure can be a flat plug or a non-flat plug, such as a cylindrical plug.

[0054] The plug provided in this embodiment can be positioned by its own fixing bracket and then connected to the wire, making installation simple and convenient.

[0055] The structural features of the plug described in the embodiments of this disclosure will be described in detail below.

[0056] Figure 1 This is a schematic diagram of the structure of a plug provided in an embodiment of the present disclosure. Figure 2 This is an exploded view of a plug provided in an embodiment of this disclosure. Figure 3 This is a schematic diagram of a structure in which a fixing bracket and a pin are positioned in a set of grooves according to an embodiment of the present disclosure. Figure 4 This is a schematic diagram of a structure in which a fixing bracket and a pin are positioned in another set of grooves according to an embodiment of this disclosure. Figure 5This is a schematic diagram of a positioning element that mates with a first set of grooves, according to an embodiment of this disclosure. Figure 6 This is a schematic diagram of a positioning element that mates with a second set of grooves, according to an embodiment of this disclosure. Figure 5 It can be considered as Figure 3 A partial cross-sectional view, Figure 6 It can be considered as Figure 4 A partial cross-sectional view.

[0057] See Figure 1 and Figure 2 The plug provided in this embodiment includes a housing 1, a fixing bracket 2, and a pin 3. The fixing bracket 2 is wrapped by the housing 1, and the pin 3 is fixed by the fixing bracket 2. At the same time, the pin 3 extends out of the housing 1 to cooperate with the socket to realize power supply and ensure that the current can be safely and stably transmitted from the power source to the electrical device.

[0058] Specifically, the outer casing 1 houses the fixing bracket 2. The fixing bracket 2 has a pin hole 20 and a positioning element 21. A pin 3 is inserted into the pin hole 20, with its first end 31 extending inside the outer casing 1 and its second end 32 extending outside the outer casing 1. See also... Figure 2-4 The first end 31 and the second end 32 are positioned opposite each other, that is, the first end 31 and the second end 32 are the two ends of the pin 3 respectively.

[0059] See Figure 2 The pin 3 has a first set of grooves 33 and a second set of grooves 34 spaced apart along the length of the pin 3, wherein the first set of grooves 33 is closer to the first end 31 than the second set of grooves 34.

[0060] like Figure 3-6 As shown, the positioning member 21 can cooperate with the first set of grooves 33 and the second set of grooves 34 respectively, so that the pin 3 is positioned at two different positions of the fixed bracket 2.

[0061] In other words, see Figure 3 and Figure 5 By inserting the second end 32 of the pin 3 into the pin hole 20 of the fixed bracket 2, and controlling the pin 3 to insert along the axial direction of the pin hole, the positioning member 21 of the fixed bracket 2 engages with the first set of grooves 33 of the pin 3 to achieve pre-positioning, facilitating automated wire riveting. After the pin 3 is connected to the automated wire, the pin 3 is further controlled to insert along the axial direction of the pin hole, causing the positioning member 21 to disengage from the first set of grooves 33 and engage with the second set of grooves 34 for repositioning, thus fixing the pin 3 to the fixed bracket 2. After the pin 3 is fixed to the fixed bracket 2, the outer shell 1 is assembled to complete the plug manufacturing. In this way, the plug provided in this embodiment can be positioned by its own fixed bracket and then connected to the wire, making the installation simple and convenient.

[0062] In addition, through comparison Figure 3 , Figure 5 and Figure 4 and Figure 6 It can be seen that when the positioning part 21 mates with the first set of grooves 33, see specifically... Figure 3 and Figure 5 The first end 31 of the pin 3 protrudes relatively far into the housing 1. If the housing 1 were directly manufactured in this case, the plug would be larger because the housing 1 would need to completely cover the pin 3. This solution, however, involves further pressing the pin 3. (See also...) Figure 4 and Figure 6 The positioning element 21 then cooperates with the second set of grooves 34 on the pin 3 to position the pin 3, so that the length of the first end 31 of the pin 3 extending into the housing 1 is significantly shortened. Under these conditions, the size of the plug is smaller, the space utilization is greater, and it is easier to carry, thus improving the user experience.

[0063] The structural features of the plug's outer shell, mounting bracket, and pin are described in detail below:

[0064] In this embodiment of the disclosure, the outer shell 1 mainly serves to provide electrical insulation to prevent electric shock, isolate external environmental factors such as dust, moisture, and oil, so as to protect the internal structure and ensure connection stability.

[0065] In some embodiments, the outer shell 1 can be formed by an overmolding process.

[0066] Typically, the outer casing 1 is made of insulating material to isolate the internal conductive metal structure from the external environment, preventing direct contact with live parts and potential electric shock. For example, the outer casing 1 can be made of plastics such as ABS, PC, or PVC.

[0067] In this embodiment, the fixing bracket 2 mainly serves to support the fixing pin 3 and enhance the stability of the plug structure.

[0068] Here, the fixing bracket 2 can be made of plastic material, which has a certain strength and rigidity.

[0069] In some embodiments, the positioning member 21 is a protruding structure located on the wall of the pin hole 20, so that after the pin 3 is inserted into the pin hole 20, it can be positioned in conjunction with the first set of grooves 33 or the second set of grooves 34 on the pin 3.

[0070] It should be noted that when the fixed bracket 2 has multiple pin holes 20, each pin hole 20 has a positioning element 21 on its hole wall. For example, see... Figure 2When the fixed bracket 2 is provided with three pin holes 20, each of the three pin holes 20 has a positioning element 21 on its hole wall. In addition, there can be two positioning elements 21, which are arranged opposite to each other on the hole wall of the pin hole 20, so as to cooperate with the first set of grooves 33 or the second set of grooves 34, so that the pin 3 can be more stably fixedly connected to the fixed bracket 2.

[0071] In related technologies, the fixing bracket 2 only includes the frame itself. During manufacturing, the fixing bracket 2 needs to be inner-coated with glue first. After the inner coating is completed, the outer coating (i.e., the outer shell) is then manufactured. This results in numerous coating steps and a longer molding cycle during the plug manufacturing process in related technologies, leading to higher processing costs.

[0072] To address the aforementioned problems in the related technologies, in the embodiments of this disclosure, see [link to relevant documentation]. Figure 2 and Figure 9 ,in Figure 9 This is a schematic diagram of a fixed bracket provided in an embodiment of the present disclosure. The fixed bracket 2 has a support member 22, and the support member 22 and the first end 31 of the pin 3 are located on the same side of the fixed bracket 2.

[0073] By setting a support member 22 on the fixed bracket 2, that is, the fixed bracket 2 and the support member 22 are an integral structure, the support member 22 is used to replace the inner coating in the related technology. This not only simplifies the manufacturing process, but also improves the melt flow and shrinkage compensation efficiency by using the rigidity of the fixed bracket 2 to limit shrinkage, thus solving the shrinkage problem caused by separate inner coating.

[0074] Furthermore, the support member 22 and the fixed bracket 2 are integrally formed, which simplifies the manufacturing process.

[0075] In this embodiment, the support member 22 can be implemented in various ways. Two possible implementations are illustrated below:

[0076] In one possible implementation, see Figure 9 The support member 22 includes a plurality of support ribs 221, which are spaced apart on the fixed bracket 2 and located on the surface of the fixed bracket 2 away from the second end 32 of the pin 3.

[0077] By setting the support member 22 as multiple support ribs 221, not only is the structural strength and rigidity of the fixed bracket 2 enhanced, the stress distribution optimized, and stress concentration reduced, but the original inner coating is replaced, thus optimizing the structural continuity.

[0078] In addition, combined Figure 9It can be seen that, due to the limitations of the plug structure, the structural forms of two adjacent support ribs 221 can be different.

[0079] Further, see Figure 9 The number of pin holes 20 can be three. Of course, the number of pin holes 20 can also be two. It should be noted that in this embodiment, only the example of three pin holes 20 is given.

[0080] Assuming there are three pin holes 20, see Figure 9 The three pin holes 20 include a ground pin hole 20-1, an N-pole pin hole 20-2, and an L-pole pin hole 20-3. The center of the ground pin hole 20-1 is located on the center line of the fixed bracket 2 and is used for inserting the ground pin. The N-pole pin hole 20-2 and the L-pole pin hole 20-3 are positioned opposite each other on both sides of the center line of the fixed bracket 2 and are used for inserting the N-pole pin and the L-pole pin, respectively.

[0081] In some embodiments, see Figure 9 The multiple support ribs 221 include multiple first support sub-ribs 2211 and multiple second support sub-ribs 2212, which are respectively arranged on both sides of the ground electrode pin hole 20-1. That is, the support ribs 221 are divided into two groups with the ground electrode pin hole 20-1 as the boundary.

[0082] Optionally, see Figure 9 Among the plurality of first support sub-reinforcements 2211, two adjacent first support sub-reinforcements 2211 are arranged in parallel and at equal intervals, and among the plurality of second support sub-reinforcements 2212, two adjacent second support sub-reinforcements 2212 are arranged in parallel and at equal intervals.

[0083] It should be noted that, theoretically, from a structural strength perspective, all the supporting ribs 221 should ideally cover one side of the fixing bracket 2 where the first end 31 of the pin 3 is located. This would provide the best structural strength, rigidity, and continuity. However, for the convenience of subsequent wire routing and automated wire riveting, the structural arrangement of the supporting ribs 221 is as follows: Figure 9 The structure shown is distributed on both sides of the ground electrode insertion hole 20-1.

[0084] In another possible implementation, the support member 22 includes a mesh skeleton structure disposed on the surface of the fixed bracket 2 away from the second end 32 of the pin 3.

[0085] Similar to the function of setting multiple support ribs 221, by setting the support member 22 as a mesh skeleton structure, not only is the structural strength and rigidity of the fixed bracket 2 enhanced, the stress distribution optimized, and stress concentration reduced, but the original inner coating is replaced, thus optimizing the structural continuity.

[0086] In some embodiments, the mesh skeleton structure may be composed of a plurality of first fixing ribs parallel to the center line of the fixing bracket 2 and a plurality of second fixing ribs perpendicular to the center line of the fixing bracket 2, wherein the plurality of first fixing ribs and the plurality of second fixing ribs intersect to define the mesh skeleton structure.

[0087] Furthermore, the number of pin holes 20 can be three. Of course, the number of pin holes 20 can also be two. It should be noted that in this embodiment of the disclosure, only the example of three pin holes 20 is provided.

[0088] Assuming there are three pin holes 20, see Figure 9 The three pin holes 20 include a ground pin hole 20-1, an N-pole pin hole 20-2, and an L-pole pin hole 20-3. The center of the ground pin hole 20-1 is located on the center line of the fixed bracket 2, and it is used for inserting the ground pin. The N-pole pin holes 20-2 and L-pole pin holes 20-3 are positioned opposite each other on both sides of the center line of the fixed bracket 2, and are used for inserting the N-pole pin and the L-pole pin, respectively. A mesh skeleton structure is distributed on both sides of the ground pin hole 20-1.

[0089] It should be noted that, from the perspective of structural strength, theoretically, the mesh skeleton structure should ideally completely cover one side of the fixing bracket 2 where the first end 31 of the pin 3 is located, thus achieving the best structural strength, rigidity, and continuity. However, for the convenience of subsequent wire routing and automated wire riveting, the mesh skeleton structure is arranged to be distributed on both sides of the ground electrode pin hole 20-1.

[0090] In some embodiments, see Figure 9 The fixing bracket 2 also has a through hole 24, which is located between the N pole pin hole 20-2 and the L pole pin hole 20-3. By setting the through hole 24, it is possible to save manufacturing materials and thus reduce manufacturing costs.

[0091] Optionally, see Figure 9 Through hole 24 can be a circular through hole.

[0092] In some embodiments, see Figure 9 The fixed bracket 2 also has a limiting part 23, which is arranged adjacent to the through hole 24 and integrally formed with multiple support ribs 221.

[0093] By setting the limiting part 23, the wire (not shown in the figure) that will be automatically riveted to the plug 2 is fixed and limited. That is, the limiting part 23 is used to accommodate and limit the wire.

[0094] In this embodiment, the plug 3 is the core component of the plug that directly participates in electrical conduction, mainly used for conductive transmission to achieve circuit connection.

[0095] In this embodiment, the plug 3 has a novel structural form, namely, a first set of grooves 33 and a second set of grooves 34 are spaced apart along the length of the plug 3. By cooperating with the positioning member 21 of the fixing bracket 2, the first set of grooves 33 and the second set of grooves 34 can position the plug 3 at two different locations on the fixing bracket 2, thereby fixing the plug 3 to the fixing bracket 2. In this way, the plug can be positioned by its own fixing bracket and then connected to the wire, making installation simple and convenient.

[0096] For the specific structure of pin 3, see [link / reference]. Figure 7 ,in Figure 7 This is a schematic diagram of a plug structure provided in an embodiment of the present disclosure. The plug 3 includes a plug portion 301 and a terminal 302. The terminal 302 is fixedly connected to one end of the plug portion 301. The first set of grooves 33 and the second set of grooves 34 are both located on the side of the plug portion 301 near the terminal 302. Here, by configuring the plug 3 with a plug portion 301 and a terminal 302, an electrical connection is achieved by the plug portion 301 engaging with the socket's insertion hole, and the terminal 302 connects to the wire inside the plug.

[0097] Understandably, most of the pin portion 301 extends out of the housing 1 and is exposed on the outside of the plug housing 1, facilitating subsequent mating with the socket hole; a small portion of the pin portion 301 extends inside the housing 1 and connects to the terminal 302; the terminal 302 is housed inside the housing 1.

[0098] To ensure a secure connection with the positioning element 21, see [link / reference] Figure 7 The first set of grooves 33 includes two first grooves 331, which are disposed opposite to each other on both sides of the pin portion 301; the second set of grooves 34 includes two second grooves 341, which are disposed opposite to each other on both sides of the pin portion 301. Thus, since there are two positioning members 21, each positioning member 21 can be matched one-to-one with either the two first grooves 331 in the first set of grooves 33, or one-to-one with either the two second grooves 341 in the second set of grooves 34.

[0099] In some embodiments, see Figure 7The pin portion 301 also has an opening 35 on the side near the terminal 302. The opening 35 is located between two second grooves 341, so that the opening 35 is closer to the terminal 302, so that the wire can pass through the opening 35 during automated riveting, and the wire and the pin 3 can be electrically connected.

[0100] In some embodiments, see Figure 7 and Figure 8 ,in Figure 8 This is a schematic diagram of a plug provided in this embodiment from another angle. The plug portion 301 has a guide structure 36 on the side away from the terminal 302. The thickness of the guide structure 36 gradually decreases in the direction away from the terminal 302. By providing the guide structure 36, it plays a guiding role when the plug is inserted into the socket hole, making it easier for the plug to be inserted into the socket hole.

[0101] This disclosure also provides a method for manufacturing a plug, applicable to the plug described in the above embodiments. See also Figure 10 ,in Figure 10 A flowchart illustrating a method for manufacturing a plug according to an embodiment of this disclosure, the method comprising the following steps:

[0102] Step 1001: Insert the pin into the pin hole of the fixed bracket, and control the pin to be inserted along the axial direction of the pin hole so that the positioning part cooperates with the first set of grooves to achieve pre-positioning.

[0103] By inserting the pin into the pin hole of the fixed bracket, the pin is controlled to be inserted along the axial direction of the pin hole, so that the positioning part cooperates with the first set of grooves to achieve pre-positioning, which facilitates automated wire riveting.

[0104] Compared to pre-fixing the pin 3 to other structures and riveting it before installing it onto the fixed bracket 2, this step of directly pre-fixing the pin 3 onto the fixed bracket 2 makes the plug manufacturing process simpler and more convenient.

[0105] Step 1002: After connecting the pin to the automation wire, continue to control the pin to be inserted along the axial direction of the pin hole, so that the positioning member disengages from the first set of grooves and engages with the second set of grooves to achieve repositioning.

[0106] After the automated wire riveting is completed, the pin is inserted along the axis of the pin hole, causing the positioning piece to disengage from the first set of grooves and engage with the positioning piece to achieve repositioning, thereby fixing the pin to the fixed bracket.

[0107] Step 1003: Inject the fixing bracket into shape to form the outer shell.

[0108] After the process of fixing the pin to the bracket is completed, the bracket is injection molded to form a shell, which covers the bracket, the second end of the pin, and the part of the wire that is riveted to the pin, so as to provide electrical insulation and complete the preparation of the plug.

[0109] Therefore, the plug prepared using the plug preparation method provided in this embodiment can be positioned by its own fixing bracket and then connected to the wire, making the installation simple and convenient. At the same time, the plug is small in size, has a high space utilization rate, and is easy to carry, thus improving the user experience.

[0110] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this disclosure, "at least one" means one or more, and "more" means two or more, unless otherwise explicitly specified. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In the description of this specification, references to the terms "some embodiments" or "exemplary" indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiments or examples is included in at least one embodiment or example of this disclosure.

[0111] The above description is merely an embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A plug, characterized in that, The plug includes a housing (1), a fixing bracket (2), and a pin (3); The outer casing (1) accommodates the fixing bracket (2), which has a pin hole (20) and a positioning element (21); The pin (3) is inserted into the pin hole (20), the first end (31) of the pin (3) extends into the housing (1), and the second end (32) of the pin (3) extends out of the housing (1). The pin (3) has a first set of grooves (33) and a second set of grooves (34) spaced apart along the length direction of the pin (3), wherein the first set of grooves (33) is closer to the first end (31) than the second set of grooves (34). The positioning element (21) can cooperate with the first set of grooves (33) and the second set of grooves (34) respectively, so that the pin (3) is positioned at two different positions on the fixed bracket (2).

2. The plug according to claim 1, characterized in that, The positioning element (21) is a protruding structure, which is located on the wall of the pin hole (20).

3. The plug according to claim 1, characterized in that, The pin (3) includes a pin part (301) and a terminal (302); The terminal (302) is fixedly connected to one end of the pin (301), and the first set of grooves (33) and the second set of grooves (34) are both located on the side of the pin (301) near the terminal (302).

4. The plug according to claim 3, characterized in that, The first set of grooves (33) includes two first grooves (331), which are disposed opposite to each other on both sides of the pin portion (301); The second set of grooves (34) includes two second grooves (341), which are disposed opposite to each other on both sides of the pin portion (301).

5. The plug according to claim 4, characterized in that, The pin portion (301) also has an opening (35) on the side near the terminal (302), the opening (35) being located between the two second grooves (341).

6. The plug according to claim 3, characterized in that, The pin portion (301) has a guide structure (36) on the side away from the terminal (302), and the thickness of the guide structure (36) gradually decreases in the direction away from the terminal (302).

7. The plug according to claim 1, characterized in that, The fixed bracket (2) has a support (22) located on the side of the fixed bracket (2) near the first end (31) of the pin (3).

8. The plug according to claim 7, characterized in that, The support member (22) includes a plurality of support ribs (221), which are spaced apart on the fixed bracket (2).

9. The plug according to claim 8, characterized in that, The number of the three pin holes (20) is three, including a ground pin hole (20-1), an N-pole pin hole (20-2) and an L-pole pin hole (20-3); The center of the ground electrode pin hole (20-1) is located on the center line of the fixed bracket (2), and the N pole pin hole (20-2) and the L pole pin hole (20-3) are arranged opposite to each other on both sides of the center line of the fixed bracket (2); The plurality of support ribs (221) include a plurality of first support sub-ribs (2211) and a plurality of second support sub-ribs (2212), and the plurality of first support sub-ribs (2211) and the plurality of second support sub-ribs (2212) are respectively disposed on both sides of the ground electrode pin hole (20-1).

10. The plug according to claim 9, characterized in that, The fixed bracket (2) also has a limiting part (23) and a through hole (24); The through hole (24) is located between the N pole pin hole (20-2) and the L pole pin hole (20-3); The limiting part (23) is disposed adjacent to the through hole (24) and is integrally formed with the plurality of support ribs (221).

11. The plug according to claim 7, characterized in that, The support member (22) includes a mesh skeleton structure, which is disposed on the surface of the second end (32) of the fixed bracket (2) opposite to the pin (3).

12. A method for manufacturing a plug, characterized in that, Applied to a plug as described in any one of claims 1-11, the method comprises: The pin is inserted into the pin hole of the fixed bracket, and the pin is controlled to be inserted along the axial direction of the pin hole, so that the positioning member cooperates with the first set of grooves to achieve pre-positioning; After connecting the pin to the automation wire, continue to control the pin to be inserted along the axial direction of the pin hole, so that the positioning member disengages from the first set of grooves and engages with the second set of grooves to achieve repositioning; The mounting bracket is injection molded to form the outer shell.

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