An integrally molded terminal
By using aluminum integrally molded terminals, the problems of high cost, heavy weight and unstable production of terminals have been solved, achieving low-cost, lightweight and efficient production, and ensuring the high precision and stability of terminals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIANGSHAN HONGQIANG ELECTRIC MFG CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-24
AI Technical Summary
Existing terminal blocks are costly, heavy, have complicated and unstable production processes, are prone to incomplete soldering and porosity at the welding points, pose safety hazards, have low casting precision, and require complicated machining steps.
The terminals are made of aluminum and are formed in one piece. Through extrusion molding and machining, the connecting plate and connecting post are formed in one piece, avoiding welding and maintaining the original surface without secondary processing. The surface is silver-plated to improve conductivity.
It reduces costs and weight, improves production efficiency and product stability, avoids welding defects, and ensures high precision and good electrical connection performance.
Smart Images
Figure CN224554764U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of electrical connector technology, and in particular discloses an integrally molded terminal block. Background Technology
[0002] As a key component for electrical connections, the reliability and manufacturing cost of terminal blocks directly affect equipment performance and production efficiency. Currently, most mainstream terminal blocks are made of copper, as copper's excellent conductivity can meet the basic requirements for electrical connections.
[0003] However, the high price of copper increases the cost of terminal blocks. Furthermore, copper's high density results in heavier terminal blocks, hindering low-cost, lightweight electrical designs. Current terminal block manufacturing typically involves separate machining followed by welding assembly. Connecting posts and plates require individual machining and welding, leading to cumbersome processes, reduced efficiency, and the risk of incomplete welds and porosity, resulting in inconsistent product quality. Over time, these welded areas may overheat due to increased resistance, potentially causing connection failure and safety hazards. While some terminal blocks are manufactured through casting followed by machining, casting has low precision, requiring extensive machining of the cast blank to meet standards. This process is cumbersome and results in significant material waste. Due to these drawbacks, improvements are necessary. Utility Model Content
[0004] The purpose of this application is to provide a one-piece molded terminal block.
[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: an integrally formed terminal block, comprising a connecting plate and a connecting post, wherein the connecting plate and the connecting post are integrally formed from aluminum material, and the terminal block is formed by machining aluminum blank, wherein the aluminum blank is extruded, and the projection patterns of the terminal block in the front-back, left-right, and up-down directions are adapted to be located within the projection patterns of the aluminum blank in the front-back, left-right, and up-down directions, respectively. The aluminum blank comprises a plate and a post, wherein the plate is adapted to be machined into the connecting plate, and the post is adapted to be machined into the connecting post.
[0006] As a preferred embodiment, the aluminum blank is extruded from the aluminum material in the front-to-back direction. The plate and the connecting plate have the same dimensions in the vertical direction, and the column and the connecting column have the same dimensions in the vertical direction. The upper and lower sides of the plate and the upper and lower end faces of the column retain their original formed surfaces, eliminating the need for machining. After machining, the dimensions of the side of the plate are consistent with those of the side of the connecting plate, and the dimensions of the side of the column are consistent with those of the side of the connecting column.
[0007] In a further preferred embodiment, the plate is formed by punching along the vertical direction, and its separation surface directly forms the outer surface of the connecting plate, and the column is formed into the outer surface of the connecting column after milling.
[0008] As a preferred embodiment, the plate has mounting holes formed on it, and the column has threaded holes formed on it. The mounting holes are formed by punching the plate in the vertical direction, and the threaded holes are formed by drilling and tapping the column in the vertical direction.
[0009] As a preferred embodiment, the connecting column includes an upper connecting portion and a lower connecting portion, both of which are cylinders. Therefore, the column includes an upper column and a lower column. Both the upper column and the lower column are quadrangular prisms. The upper column is formed by milling to create the upper connecting portion, and the lower column is formed by milling to create the lower connecting portion.
[0010] More preferably, the upper connecting part is disposed on the upper side of the connecting plate, the lower connecting part is disposed on the lower side of the connecting plate and is coaxially disposed with the upper connecting part, and the diameter of the lower connecting part is smaller than the diameter of the upper connecting part.
[0011] Further preferably, the lower connecting portion has a chamfered edge.
[0012] As a preferred embodiment, the connecting plate is a rectangular plate with rounded ends. The axes of the connecting post and the mounting hole coincide with the normal reference axes of the two rounded ends of the connecting plate, respectively. A protrusion is also provided on the rounded end near the mounting hole, and the upper and lower sides of the protrusion are flush with the upper and lower sides of the connecting plate, respectively.
[0013] As a preferred embodiment, the mounting hole protrudes downward after stamping to form a mounting sleeve, and the side of the mounting sleeve is inclined inward to form a bottomless basin-shaped structure with the mounting hole.
[0014] As a preferred embodiment, the surface of the terminal block is plated with a silver layer.
[0015] Compared with the prior art, the beneficial effects of this application are as follows:
[0016] (1) Integrated aluminum molding, cost reduction and efficiency improvement: The terminal block of this application is formed by mechanical processing of aluminum blank. The aluminum blank is formed by extrusion molding. Compared with the copper terminal block of the prior art, the terminal block of this application is made of aluminum material. The cost and density of aluminum are much lower than those of copper. Therefore, the cost and weight of aluminum terminal block are greatly reduced, which meets the requirements of low cost and lightweight electrical design. At the same time, the integrated molding is achieved through extrusion process and mechanical processing, eliminating the need for welding. This avoids defects such as false welding and porosity that may occur in traditional separate welding process. The integrated structure has high overall strength, better mechanical performance and long-term stability of electrical connection, and more reliable quality.
[0017] (2) High precision and fewer machining surfaces: Compared with cast blanks, the blanks produced by extrusion molding in this application have higher dimensional accuracy and better surface quality, providing an excellent foundation for subsequent machining. By controlling the direction of extrusion molding, the upper and lower surfaces of the plate and column can maintain the original extrusion molding surface, eliminating the need for secondary machining such as milling, directly reducing the machining steps of the upper and lower surfaces, shortening production time, and improving efficiency. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the aluminum material extrusion molding of this utility model.
[0019] Figure 2 This is a schematic diagram of the aluminum blank of this utility model.
[0020] Figure 3 This is a three-dimensional schematic diagram comparing the aluminum blank before and after machining according to this utility model.
[0021] Figure 4 These are three-view comparisons of the aluminum billet before and after machining according to this utility model.
[0022] Figure 5 This is a three-dimensional structural diagram of the present invention.
[0023] Figure 6 This is a three-dimensional structural diagram of the present invention.
[0024] Figure 7 This is a three-dimensional structural diagram of the present invention.
[0025] Figure 8 This is a three-dimensional structural cross-sectional view of the present invention.
[0026] In the diagram: 1. Connecting plate; 2. Connecting column; 21. Upper connecting part; 22. Lower connecting part; 23. Threaded hole; 3. Mounting sleeve; 31. Mounting hole; 4. Protrusion; 5. Plate; 6. Column; 61. Upper column; 62. Lower column. Detailed Implementation
[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0028] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.
[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.
[0031] A preferred embodiment of this application, such as Figures 1 to 8 As shown, an integrally formed terminal block includes a connecting plate 1 and a connecting post 2. The connecting plate 1 and the connecting post 2 are integrally formed from aluminum material, and the terminal block is machined from an aluminum blank. The aluminum blank is extruded, and the projection patterns of the terminal block in the front-back, left-right, and up-down directions are adapted to be located within the projection patterns of the aluminum blank in the front-back, left-right, and up-down directions, respectively. The aluminum blank includes a plate body 5 and a post body 6. The plate body 5 is adapted to be machined into the connecting plate 1, and the post body 6 is adapted to be machined into the connecting post 2.
[0032] The terminals in this application are made of aluminum. Compared to copper terminals in the prior art, aluminum has a much lower cost and density. Therefore, aluminum terminals significantly reduce cost and weight, meeting the requirements of low-cost, lightweight electrical design. Figures 3 to 4 As shown, by designing and controlling the size of the aluminum blank, material waste can be minimized and costs can be further reduced while ensuring that the projections of the terminals in all directions fall into the same direction of the aluminum blank.
[0033] In this embodiment, the aluminum blank is extruded from the aluminum material in the front-to-back direction. The plate 5 and the connecting plate 1 have the same dimensions in the vertical direction, and the column 6 and the connecting column 2 have the same dimensions in the vertical direction. The upper and lower sides of the plate 5 and the upper and lower end faces of the column 6 retain their original forming surfaces, eliminating the need for machining. After machining, the side of the plate 5 has the same dimensions as the side of the connecting plate 1, and the side of the column 6 has the same dimensions as the side of the connecting column 2.
[0034] Compared to cast blanks, the blanks produced by extrusion molding in this application have higher dimensional accuracy and better surface quality, providing an excellent foundation for subsequent machining. By controlling the direction of extrusion molding, the upper and lower surfaces of the plate 5 and the column 6 can maintain the original extruded surface without the need for secondary processing such as milling. This directly reduces the machining steps on the upper and lower surfaces, shortens production time, and improves efficiency. At the same time, the upper and lower surfaces can be exempted from machining, which also avoids machining losses on these two surfaces and further reduces costs.
[0035] Furthermore, the plate 5 is formed by punching along the vertical direction, and its separation surface directly forms the outer side of the connecting plate 1. The column 6 is formed into the outer side of the connecting column 2 after milling.
[0036] Punching is a fast and efficient processing method that can form complex shapes. For the connecting plate 1 in this application, its outer surface can be quickly formed by punching with high precision and no additional processing is required. Since the column 6 is thick, it cannot be punched, so milling is used. Milling is also a fast and efficient processing method that can not only form the outer surface of the column 6, but also simultaneously process chamfers or rounded corners to achieve the machining of its complete shape.
[0037] In this embodiment, the plate 5 is formed with mounting holes 31, and the column 6 is formed with threaded holes 23. The mounting holes 31 are formed by punching the plate 5 in the vertical direction, and the threaded holes 23 are formed by drilling and tapping the column 6 in the vertical direction.
[0038] In this embodiment, the connecting post 2 includes an upper connecting part 21 and a lower connecting part 22. Both the upper connecting part 21 and the lower connecting part 22 are cylinders 6, so the post 6 includes an upper post 61 and a lower post 62. Both the upper post 61 and the lower post 62 are quadrangular prisms. The upper post 61 is formed by milling to create the upper connecting part 21, and the lower post 62 is formed by milling to create the lower connecting part 22. The upper connecting part 21 is disposed on the upper side of the connecting plate 1, and the lower connecting part 22 is disposed on the lower side of the connecting plate 1 and is coaxially disposed with the upper connecting part 21. The diameter of the lower connecting part 22 is smaller than the diameter of the upper connecting part 21, and the edge of the lower connecting part 22 is chamfered.
[0039] It is understandable that, such as Figure 8 As shown, since the depth of the threaded hole 23 may be greater than the height of the upper connecting part 21, the diameter of the lower connecting part 22 should be greater than the diameter of the threaded hole 23 in order to ensure that the hole can be drilled smoothly. The upper connecting part 21, as the main body of the connecting cable, needs to have sufficient strength, so its diameter can be designed to be slightly larger. The lower connecting part 22 can be used for positioning during installation. To facilitate insertion into the positioning slot, its bottom edge can be chamfered.
[0040] In other embodiments, the lower connecting part 22 can also be designed as a frustum or a pyramid, which can be adjusted according to the shape of the positioning groove.
[0041] In this embodiment, the connecting plate 1 is a rectangular plate with rounded ends. The axes of the connecting post 2 and the mounting hole 31 are respectively aligned with the normal reference axes of the two rounded ends of the connecting plate 1. A protrusion 4 is also provided on the rounded end near the mounting hole 31. The upper and lower sides of the protrusion 4 are flush with the upper and lower sides of the connecting plate 1, respectively. The protrusion 4 can serve as a fulcrum to facilitate the installation of the wiring terminals.
[0042] In this embodiment, the mounting hole 31 protrudes downward after stamping to form a mounting sleeve 3. The side of the mounting sleeve 3 is inclined inward, forming a bottomless basin-shaped structure with the mounting hole 31.
[0043] It is understandable that, due to the downward punching of the mounting hole 31, the hole wall will form a downward flared shape after the impact (e.g., Figure 8 As shown in the figure, after stamping, its position and shape are equivalent to a chamfer. This shape makes it easy to install the mounting sleeve 3. At the same time, since the mounting sleeve 3 protrudes downward, it has stronger stress resistance when installed, which can prevent the mounting sleeve 3 from deforming.
[0044] In this embodiment, the surface of the terminal block is plated with a silver layer. The terminal block is integrally formed from aluminum. Aluminum has lower conductivity than metals such as copper and silver. Therefore, if a processed aluminum terminal block is used, its conductivity may be insufficient. In order to ensure that it has the same or even better conductivity as the prior art, it can be plated with silver or copper. The relevant process is a mature prior art, which can be referred to by those skilled in the art.
[0045] As described in this embodiment, the one-piece molded aluminum terminal block is lighter and less expensive than the copper terminal block of the prior art under the same specifications. After being silver-plated, it has better conductivity. In terms of processing, the one-piece molding avoids the defects caused by the welding process, and the production is achieved by machining only, which ensures product quality.
[0046] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A one-piece molded terminal block, characterized in that, The device includes a connecting plate and a connecting column, both integrally formed from aluminum material. The terminal block is machined from an aluminum blank, which is extruded. The projection patterns of the terminal block in the front-back, left-right, and up-down directions are adapted to be located within the projection patterns of the aluminum blank in the front-back, left-right, and up-down directions, respectively. The aluminum blank includes a plate and a column. The plate is adapted to be machined into the connecting plate, and the column is adapted to be machined into the connecting column.
2. The integrally molded terminal block as described in claim 1, characterized in that, The aluminum blank is formed by extruding the aluminum material in the front-to-back direction. The plate and the connecting plate have the same dimensions in the vertical direction. The column and the connecting column have the same dimensions in the vertical direction. The upper and lower sides of the plate and the upper and lower end faces of the column retain their original forming surfaces, eliminating the need for machining. After machining, the dimensions of the side of the plate are consistent with the side of the connecting plate. After machining, the dimensions of the side of the column are consistent with the side of the connecting column.
3. The integrally molded terminal block as described in claim 2, characterized in that, The plate is formed by punching along the vertical direction, and its separation surface directly forms the outer surface of the connecting plate. The column is formed into the outer surface of the connecting column after milling.
4. The integrally molded terminal block as described in claim 1, characterized in that, The plate has mounting holes formed on it, and the column has threaded holes formed on it. The mounting holes are formed by punching the plate in the vertical direction, and the threaded holes are formed by drilling and tapping the column in the vertical direction.
5. The integrally molded terminal block as described in claim 1, characterized in that, The connecting column includes an upper connecting part and a lower connecting part, both of which are cylinders. Therefore, the column includes an upper column and a lower column. Both the upper column and the lower column are quadrangular prisms. The upper column is formed by milling to create the upper connecting part, and the lower column is formed by milling to create the lower connecting part.
6. The integrally molded terminal block as described in claim 5, characterized in that, The upper connecting part is disposed on the upper side of the connecting plate, and the lower connecting part is disposed on the lower side of the connecting plate and coaxially disposed with the upper connecting part. The diameter of the lower connecting part is smaller than the diameter of the upper connecting part.
7. The integrally molded terminal block as described in claim 5, characterized in that, The lower connecting part has a chamfered edge.
8. The integrally molded terminal block as described in claim 4, characterized in that, The connecting plate is a rectangular plate with rounded ends. The axes of the connecting column and the mounting hole are respectively aligned with the normal reference axes of the two rounded ends of the connecting plate. A protrusion is also provided on the rounded end near the mounting hole. The upper and lower sides of the protrusion are flush with the upper and lower sides of the connecting plate, respectively.
9. A one-piece molded terminal block as described in claim 4, characterized in that, The mounting hole protrudes downward after being stamped to form a mounting sleeve. The side of the mounting sleeve is inclined inward, forming a bottomless basin-shaped structure with the mounting hole.
10. A one-piece molded terminal block as described in claim 1, characterized in that, The surface of the wiring terminal is plated with a silver layer.