Plug core module

Abstract

The utility model relates to the technical field of plugs, in particular to a plug core module, which is characterized by comprising a base, a cover plate covered on the base and a pin sheet fixed in the base in a penetrating manner, an embedding groove is arranged on the base, the upper end of the pin sheet extends into the embedding groove, and the lower end of the pin sheet extends out of the bottom surface of the base. According to the utility model, the thermal protector can be embedded on the base, and the base, the pin sheet and the cover plate are integrated into a whole to be provided for plug manufacturers, so that the quality of plug products is ensured, and disputes between the plug manufacturers and thermal protector manufacturers are reduced.

Description

Technical Field

[0001] This utility model relates to the field of plug technology, and in particular to a plug core module. Background Technology

[0002] Power plugs are widely used in the production of electrical products. Installing a thermal protector on the plug can effectively prevent safety hazards caused by poor contact between the plug and socket or excessive load. Currently, plug manufacturers purchase thermal protectors from thermal protector manufacturers to produce plugs with thermal protectors. Workers then assemble the thermal protectors onto the base of the existing plug using welding or screws, as disclosed in Chinese utility model patent application number 200620105999.7, entitled "Current Overload Protection Plug". The current production technology has the following technical problems: First, because the bimetallic strip and moving contact in the thermal protector are thin and small metal pieces, like a fingernail, workers can easily touch them during assembly due to factors such as their skill level, sense of responsibility, or personal emotions. This can cause deformation, resulting in poor contact between the moving and stationary contacts, which in turn prevents the thermal protector from functioning properly and produces a large number of defective products. Furthermore, it is difficult to determine whether the defect is due to a problem with the thermal protector itself or a problem with the worker's operation. Plug manufacturers and thermal protector manufacturers often shift responsibility, leading to disputes between them. Second, because a thermal protector is added to an existing plug, the plug housing needs to be made larger to accommodate the thermal protector. Therefore, this type of plug is bulky and unsuitable for use in confined spaces.

[0003] Given the aforementioned technical problems in the existing technology, the applicant believes it is necessary to make technical improvements to provide a plug core module to reduce the defect rate of plug products and avoid disputes between plug manufacturers and thermal protector manufacturers. Utility Model Content

[0004] The purpose of this invention is to solve the above-mentioned problems and shortcomings by providing a plug core module. By providing an mounting groove for a thermal protector on the base, thermal protector manufacturers can create a plug module that integrates the base, pins, cover plate, and thermal protector into a single unit, which can then be supplied to plug manufacturers. This reduces the defect rate of plug products and minimizes disputes between plug manufacturers and thermal protector manufacturers. Furthermore, it results in a smaller plug product size, suitable for use in confined spaces.

[0005] The technical solution of this utility model is implemented as follows: a plug core module, characterized in that: it includes a base, a cover plate placed on the base, and a pin piece inserted and fixed in the base. The base is provided with an embedding groove, the upper end of the pin piece is inserted into the embedding groove, and the lower end of the pin piece is extended out of the bottom surface of the base.

[0006] Furthermore, the mounting groove is arranged laterally along the width direction of the base.

[0007] Furthermore, the groove wall of the mounting groove is provided with a mounting groove for inserting the pin piece, the upper end of the pin piece is inserted into the mounting groove, and the lower end of the pin piece extends out of the bottom surface of the base from the bottom of the mounting groove.

[0008] Furthermore, rivet clearance holes are provided on the pin plates located within the insertion slot.

[0009] Furthermore, a rivet clearance groove is provided on the wall of the mounting groove.

[0010] Furthermore, the rivet clearance groove has a shape that is larger at the top and smaller at the bottom.

[0011] Furthermore, a concealed slot is provided on the top surface of the cover plate, and the top end of the pin protrudes from the cover plate and is accommodated in the concealed slot.

[0012] Furthermore, a recessed step is provided on the top surface of the cover plate located on the other side of the recessed slot, and a cavity with perforations is provided on the recessed step.

[0013] The beneficial effects of this utility model are:

[0014] Firstly, the base has an insert groove. During application, the thermal protector can be inserted into this groove, which limits and secures the thermal protector to the base. When the cover plate is placed on the base, the thermal protector is completely protected within the sealed space formed by the base and the cover plate. This allows thermal protector manufacturers to provide plug manufacturers with a plug module that integrates the base, pins, cover plate, and thermal protector into a single unit. When plug manufacturers use this plug module to produce plug products with thermal protectors, they only need to connect the power cord and injection mold an insulating base conforming to national standards onto the module. During production, workers can completely avoid touching the moving contact or bimetallic strip of the thermal protector, thus preventing defects caused by worker error. When defective plug products occur, it is easy to determine whether the problem lies with the plug module's quality or the manufacturer's operator's actions, effectively preventing blame-shifting between the plug manufacturer and the thermal protector manufacturer and reducing disputes.

[0015] Secondly, the mounting groove can also provide a wrapping protection for the thermal protector. Combined with the protection of the cover plate, this invention can effectively resist damage to the thermal protector caused by external impacts, greatly improving the stability of the plug product.

[0016] In addition, the upper end of the prong extends into the mounting groove, which can be used to limit the prong and the thermal protector to fit tightly together and achieve electrical connection between them. This makes the plug product produced using the structure of this utility model more compact and smaller in size, and can be used in more confined spaces. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model.

[0019] Figure 3 This is a bottom view of the cover plate in this utility model.

[0020] Figure 4 This is a top view of the base structure in this utility model.

[0021] Figure 5 This is a schematic diagram of the pin plate in this utility model. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1 , 2 As shown, this utility model provides a plug core module. To achieve the purpose proposed by this utility model, it includes a base 1, a cover plate 2 placed on the base 1, and a pin 3 inserted and fixed in the base 1. The base 1 is provided with an embedding groove 13. The upper end of the pin 3 extends into the embedding groove 13, and the lower end of the pin 3 extends out of the bottom surface of the base 1. In this way, the thermal protector can be integrated into the base 1 and the cover plate 2, and is protected by the embedding groove 13 and the cover plate 2. When used in the production of plug products, it can effectively resist the damage caused by external impacts and completely prevent workers from touching the thermal protector, thereby effectively ensuring the quality of the plug products.

[0024] like Figure 2 , 4As shown, the mounting groove 13 is arranged laterally along the width direction of the base 1. In application, the thermal protector is installed flat within the mounting groove 13 along its length, resulting in a smaller height for the plug core module. This further reduces the height of the plug product manufactured using this invention, making it ideal for use in very confined spaces.

[0025] like Figure 2 , 4 As shown, the mounting groove 13 has a mounting groove 131 on its groove wall for inserting the pin 3. The upper end of the pin 3 is inserted into the mounting groove 131, and the lower end of the pin 3 extends out of the bottom surface of the base 1 from the bottom of the mounting groove 131. In the production of this utility model, it is preferable that the pin 3 and the base 1 are integrally injection molded. In this way, the mounting groove 131 makes the pin 3 fit tightly against one side of the groove wall of the mounting groove 13. When the thermal protector is installed in the mounting groove 13, the limiting effect of the groove wall of the mounting groove 13 makes the upper end of the pin 3 fit tightly against the thermal protector, forming a stable electrical connection.

[0026] Thermal protectors typically use rivets to lock their components together. The bottom of the rivet protrudes from the thermal protector. To ensure a tight fit between the thermal protector and the pin 3, such as... Figure 5 As shown, a rivet clearance hole 31 is provided on the pin piece 3 located in the insertion slot 131; at the same time, the rivet clearance hole 31 can also limit the end of the rivet to increase the stability of the thermal protector in the insertion slot 13.

[0027] like Figure 2 , 4 As shown, a rivet clearance groove 132 is also provided on the wall of the mounting groove 13. This rivet clearance groove 132 also limits the end of the rivet, further increasing the stability of the thermal protector within the mounting groove 13. Simultaneously, it allows for a more compact assembly structure between the thermal protector and the base 1, thereby reducing the volume of the base 1. Figure 2 , 4 As shown, the rivet clearance groove 132 has a shape with a large upper end and a small lower end. This allows the end of the rivet to be inserted more smoothly into the rivet clearance groove 132 when the thermal protector is installed in the mounting groove 13, thereby improving production efficiency.

[0028] like Figure 1 , 2As shown, a recessed slot 23 is provided on the top surface of the cover plate 2, and the top end of the plug piece 3 protrudes from the cover plate 2 and is accommodated in the recessed slot 23. A recessed step 24 is also provided on the top surface of the cover plate 2 on the other side of the recessed slot 23, and a perforated cavity 25 is provided on the recessed step 24. When the thermal protector is assembled on this utility model, epoxy resin is injected into the recessed slot 23 and the cavity 25 to prevent moisture or other objects from entering the interior of this utility model. Especially in the process of manufacturing plug products, when liquid plastic needs to be injection molded on the outside of the plug core module to form an insulating base, it can prevent the liquid plastic from seeping into the interior of the plug core module and sticking to the thermal protector, thereby ensuring the quality of the plug module.

[0029] like Figure 2 , 4 As shown, two mounting slots 13 are arranged side by side on the base 1. In this way, both the live wire pin and the neutral wire pin are connected to a thermal protector, thereby providing dual protection and enhancing the thermal protection function of this utility model.

[0030] like Figure 2 , 3 As shown in Figure 4, the base 1 has multiple mounting holes 11; the cover plate 2 has multiple mounting protrusions 21 correspondingly; the base 1 has multiple fastening grooves 12 around its perimeter, and the cover plate 2 has multiple fastening protrusions 22 correspondingly around its perimeter. Through the mutual fitting of the mounting holes 11 and the mounting protrusions 21, and the mutual fastening of the fastening grooves 12 and the fastening protrusions 22, the base 1 and the cover plate 2 can be firmly assembled together.

Claims

1. A plug core module, characterized by: The utility model relates to a base (1), the cover plate (2) of cover is placed on the base (1), the plug blade (3) is placed fixedly in the base (1), the base (1) is provided with the embedded groove (13), the upper end of plug blade (3) is set into the embedded groove (13) and is provided, the lower end of plug blade (3) is set out of the bottom surface of base (1) and is provided.

2. The plug core module of claim 1, wherein The embedded groove (13) is set horizontally along the width direction of the base (1).

3. The plug core module of claim 2, wherein The groove wall of embedded groove (13) is provided with the plug groove (131) for plug blade (3) to be inserted, the upper end of plug blade (3) is inserted into plug groove (131), and the lower end of plug blade (3) is set out of the bottom surface of base (1) from the groove bottom of plug groove (131).

4. The plug core module of claim 3, wherein Rivet accommodating hole (31) is arranged on plug blade (3) in plug groove (131).

5. The plug core module of claim 3, wherein Rivet accommodating groove (132) is further arranged on the groove wall of embedded groove (13).

6. The plug core module of claim 5, wherein The rivet accommodating groove (132) has a shape structure with a large upper end and a small lower part.

7. The plug core module of claim 1, wherein: The top surface of cover plate (2) is provided with a hiding groove hole (23), and the top end of plug blade (3) passes through cover plate (2) and is accommodated in hiding groove hole (23).

8. The plug core module of claim 7, wherein: Sunken step (24) is further arranged on the top surface of cover plate (2) on the other side of hiding groove hole (23), and recessed cavity (25) with perforation is further arranged on sunken step (24).

9. The plug core module of claim 1, wherein Two embedded grooves (13) are arranged side by side on the base (1).

10. The plug core module of claim 1, wherein: The base (1) is provided with a plurality of embedded holes (11), the cover plate (2) is correspondingly provided with a plurality of embedded convex columns (21), and the periphery of the base (1) is provided with a plurality of buckling grooves (12), and the periphery of the cover plate (2) is correspondingly provided with a plurality of buckling convex strips (22).

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