Plug structure with plate spring type terminal
By directly fixing the leaf spring terminal to the insulating seat, the high cost and high tolerance problems of traditional connectors are solved, achieving low cost and convenient installation.
Patent Information
- Application Number
- CN202422526039.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-18
AI Technical Summary
In traditional high-current connectors, leaf spring terminals must first be fixed to the conductive sheet and then installed on the terminal block, resulting in high manufacturing and assembly costs and strict tolerance requirements.
The leaf spring terminal is directly fixed to the insulating base and engages with the slot of the insulating base through a tenon, omitting the step of fixing it to the conductive sheet. Its size only needs to match the insulating base, reducing manufacturing and assembly requirements.
The manufacturing and assembly costs of the leaf spring type terminal are reduced, the convenience and flexibility of installation are improved, and the terminal is suitable for various occasions.
Smart Images

Figure CN223363444U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a connector structure, and in particular to a plug structure with a leaf spring terminal. Background Art
[0002] High-current connectors are commonly installed inside terminal blocks and are used to connect the power bus bar of network energy equipment, cell base stations, servers, Internet devices, or industrial power distribution equipment to a circuit board.
[0003] Traditional high-current connectors mainly include a female component installed inside a terminal block and a male terminal that docks with the female component. The female component includes a conductive sheet and a leaf spring-type terminal. The conductive sheet is fixed inside the terminal block and has two opposing arms extending therefrom. The leaf spring-type terminal is installed on the arm. When the male terminal is plugged into the terminal block, it will be clamped by the leaf spring-type terminal and electrically connected.
[0004] However, the above-mentioned installation sequence is as follows: the leaf spring type terminal must first be fixed to the conductive sheet, and then the combined conductive sheet and leaf spring type terminal must be installed inside the terminal block. Therefore, the leaf spring type terminal must match the dimensions of both the conductive sheet and the terminal block, resulting in higher tolerance and assembly quality requirements for the leaf spring type terminal, thereby increasing manufacturing and assembly costs.
[0005] In view of this, the present inventors have devoted themselves to studying the above-mentioned existing technologies and have applied theoretical knowledge to try their best to solve the above-mentioned problems, which has become the goal of the present inventors' improvement. Utility Model Content
[0006] The utility model provides a plug structure with a leaf spring type terminal, which is directly fixed on an insulating seat. The size of the leaf spring type terminal only needs to match the insulating seat, so as to save the manufacturing and assembly costs of the leaf spring type terminal.
[0007] In an embodiment of the present invention, a plug structure with a leaf spring-type terminal is provided, comprising: an insulating seat having a mounting surface, the mounting surface being provided with a positioning groove and at least a pair of latching grooves disposed on both sides of the positioning groove; a male terminal being inserted into the positioning groove and protruding from the mounting surface; and a leaf spring-type terminal having at least a pair of tenons and a plurality of terminals extending therefrom, each tenon being engaged with each of the latching grooves, and the plurality of terminals being arranged corresponding to the male terminal.
[0008] Based on the above, the leaf spring type terminal is engaged with the slot of the insulating base through the tenon, so that the leaf spring type terminal is directly fixed on the insulating base. Compared with the conventional method, which requires first fixing the leaf spring type terminal to the conductive piece of the female base and then installing the combined conductive piece and leaf spring type terminal inside the insulating base, the present invention omits the assembly step of fixing the leaf spring type terminal to the conductive piece, so that the size of the leaf spring type terminal only needs to match the insulating base and does not need to be manufactured to match the conductive piece, thereby reducing the tolerance and assembly requirements of the leaf spring type terminal, thereby saving the manufacturing and assembly costs of the leaf spring type terminal and making the leaf spring type terminal convenient and quick to install. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a three-dimensional combination diagram of the plug structure of the utility model.
[0010] Figure 2 This is a three-dimensional exploded view of the plug structure of the utility model.
[0011] Figure 3 It is a three-dimensional schematic diagram of the leaf spring terminal of the utility model.
[0012] Figure 4 It is a partially enlarged three-dimensional view of the plug structure of the present invention.
[0013] Figure 5 It is a cross-sectional schematic diagram of the plug structure of the present utility model.
[0014] Figure 6 This is another cross-sectional schematic diagram of the plug structure of the present invention.
[0015] Figure 7 This is a cross-sectional view of the plug structure of the utility model in use.
[0016] Figure 8 This is a three-dimensional schematic diagram of another embodiment of the leaf spring terminal of the present invention.
[0017] Figure 9 This is a partially enlarged three-dimensional view of another embodiment of the plug structure of the present invention.
[0018] Figure 10 This is a cross-sectional diagram of another embodiment of the plug structure of the present invention.
[0019] Figure 11 This is a three-dimensional schematic diagram of another embodiment of the leaf spring terminal of the present invention.
[0020] Figure 12 This is a partially enlarged three-dimensional view of another embodiment of the plug structure of the present invention.
[0021] Figure 13 This is a cross-sectional diagram of another embodiment of the plug structure of the present invention. DETAILED DESCRIPTION
[0022] The detailed description and technical contents of the present invention are described below with reference to the accompanying drawings. However, the accompanying drawings are for illustrative purposes only and are not intended to limit the present invention.
[0023] Please refer to Figures 1 to 7 As shown, the present invention provides a plug structure with a leaf spring type terminal. The plug structure 10 is a male connector of a high current connector. The plug structure 10 mainly includes an insulating base 1, a male terminal 2 and a leaf spring type terminal 3.
[0024] like Figures 1 to 2 、 Figures 4 to 7 As shown, the insulating seat 1 of this embodiment is the base of the equipment end, but is not limited to this. The insulating seat 1 has a mounting surface 11, and the mounting surface 11 is provided with a positioning groove 111 and one or more pairs of card grooves 12 arranged on both sides of the positioning groove 111. Each card groove 12 has a tapered guide area 121 and a tapered clamping area 122. Each tapered guide area 121 gradually reduces its width W1 toward the direction approaching the tapered clamping area 122, and each tapered clamping area 122 gradually increases its width W2 toward the direction approaching the tapered guide area 121.
[0025] The detailed description is as follows. The insulating seat 1 of this embodiment is provided with a slot 13. The mounting surface 11 is formed on the inner bottom wall of the slot 13. However, the slot 13 is not a necessary structure and can be omitted depending on the actual situation. The number of the card slots 12 is three pairs, but this is not a limitation. The three pairs of card slots 12 are respectively arranged in parallel on opposite sides of the positioning groove 111.
[0026] like Figures 1 to 2 、 Figures 4 to 7 As shown, the male terminal 2 is plate-shaped and made of conductive metal such as copper. The male terminal 2 is fixed in the positioning groove 111 and protrudes from the mounting surface 11 , that is, the head of the male terminal 2 of this embodiment is accommodated in the slot 13 .
[0027] like Figures 1 to 7 As shown, the leaf spring terminal 3 has a frame 31 that is sleeved on the male terminal 2 and extends from one or more pairs of tenons 32 and a plurality of terminals 33. Each tenon 32 has a tapered block 321 at its end. Each tapered block 321 can be inserted from each tapered guide area 121 and locked in each tapered locking area 122. The shape of each tapered locking area 122 matches that of each tapered block 321, so that each tenon 32 is locked in each slot 12. When the tapered block 321 moves toward the tapered guide area 121, it will form an interference fit with the tapered locking area 122, thereby preventing the tapered block 321 from being separated from the tapered locking area 122.
[0028] Further explanation is as follows: the number of tenons 32 in this embodiment is three pairs, but this is not a limitation. Each tenon 32 has an L-shaped bent section 322 extending from the end of the frame 31. The L-shaped bent sections 322 of each pair of tenons 32 extend in parallel from both sides of the end of the frame 31, and each conical block 321 is formed at the end of each L-shaped bent section 322. A part of each L-shaped bent section 322 is inserted into each conical guide area 121, and a plurality of terminals 33 are arranged corresponding to the male terminal 2.
[0029] In addition, the frame 31 of this embodiment is a U-shaped plate 311 arranged along the front, rear side surfaces and top surface of the male terminal 2, but this is not limiting. The U-shaped plate 311 is provided with twice the number of hollow openings 312 corresponding to the front and rear side surfaces, and the plurality of terminals 33 extend from one side of the inner periphery of each hollow opening 312 into each hollow opening 312.
[0030] Furthermore, the plurality of terminals 33 are arranged longitudinally side by side. Each terminal 33 is bent to have one or more first V-shaped turning sections 331 abutting against the front and rear sides of the male terminal 2 and one or more second V-shaped turning sections 332 with a bending direction opposite to the first V-shaped turning section 331 .
[0031] like Figures 2 to 7 As shown, the plug structure 10 of the present invention is in use. It utilizes the leaf spring terminal 3 to engage with the slot 12 of the insulating base 1 through the tenon 32, so that the leaf spring terminal 3 is directly fixed to the insulating base 1. Compared with the conventional method, which requires first fixing the leaf spring terminal to the conductive plate of the female base and then installing the combined conductive plate and leaf spring terminal inside the insulating base, the present invention omits the assembly step of fixing the leaf spring terminal to the conductive plate. Therefore, the size of the leaf spring terminal 3 only needs to match the insulating base 1 and does not need to match the conductive plate. This can reduce the tolerance and assembly requirements of the leaf spring terminal 3, thereby saving the manufacturing and assembly costs of the leaf spring terminal 3 and making the leaf spring terminal 3 convenient and quick to install.
[0032] In addition, the width W1 of the tapered guiding area 121 gradually decreases toward the tapered locking area 122 to guide the tapered locking block 321 to be smoothly inserted into the tapered locking area 122 , thereby improving the assembly convenience of the plug structure 10 .
[0033] Furthermore, the plug structure 10 of this embodiment is a male connector of a high-current connector, which is used to mate with the conductive sheet 101 of the female connector 100. When the conductive sheet 101 is inserted into the slot 13, it can press against the second V-shaped turning section 332 of the plurality of terminals 33, so that the conductive sheet 101 and the male terminal 2 are electrically connected to each other through the plurality of terminals 33. The plurality of terminals 33 have multiple contact points, thereby having an excellent conductive effect.
[0034] Furthermore, conventional methods only install leaf spring terminals on the conductive sheet of the female base. In contrast, the present invention installs the leaf spring terminals 3 on the insulating base 1 of the plug structure 10 to ensure that the male terminals 2 are continuously attached to the leaf spring terminals 3, making it more flexible and applicable to various occasions.
[0035] like Figures 8 to 10 FIG. 1 is another embodiment of the plug structure 10 of the present invention. Figures 8 to 10 Examples and Figures 1 to 7 The embodiments are roughly the same, Figures 8 to 10 Examples and Figures 1 to 7 The embodiment of the present invention is different in that the structure of the frame 31 is different.
[0036] The frame 31 of this embodiment is a mouth-shaped plate 313 arranged along the front, rear, left and right sides of the male terminal 2. The mouth-shaped plate 313 is provided with two times the number of hollow openings 312' corresponding to the front and rear sides. The plurality of terminals 33 extend from one side of the inner periphery of each hollow opening 312' into each hollow opening 312'. In this way, the same as Figures 1 to 7 The functions and effects of the embodiments.
[0037] like Figures 11 to 13 As shown, it is another embodiment of the plug structure 10 of the present utility model. Figures 11 to 13 Examples and Figures 1 to 7 The embodiments are roughly the same, Figures 11 to 13 Examples and Figures 1 to 7 The embodiment of the present invention is different in that the structure of the frame 31 is different.
[0038] The top surface of the male terminal 2 of this embodiment is concavely provided with one or more grooves 21 that pass through the front and rear side surfaces. The frame 31 has two strip-shaped upright plates 314 corresponding to the front and rear side surfaces of the male terminal 2, and three or more L-shaped bent ribs 315 extending from one strip-shaped upright plate 314 to the other strip-shaped upright plate 314 and embedded in the groove 21 and the left and right side surfaces of the corresponding male terminal 2. Each strip-shaped upright plate 314 is provided with a hollow opening 312" between each two adjacent L-shaped bent ribs 315. The multiple terminals 33 are formed by extending upward from the bottom side of the inner periphery of each hollow opening 312". The extension directions of the three or more L-shaped bent ribs 315 are staggered with each other. In this way, the same as Figures 1 to 7 The functions and effects of the embodiments.
[0039] In summary, the plug structure with leaf spring terminals of the present utility model can achieve its intended purpose, addressing the shortcomings of conventional plugs. It also possesses industrial applicability, novelty, and advancements, fully meeting the requirements for patent applications. Therefore, an application has been filed in accordance with the Patent Law to protect the rights of the creator.
[0040] Reference numerals
[0041] 10: Plug structure
[0042] 1: Insulation seat
[0043] 11: Mounting surface
[0044] 111: Positioning slot
[0045] 12: Card slot
[0046] 121: Conical guide area
[0047] 122: Conical latch area
[0048] 13: Slot
[0049] 2: Public terminal
[0050] 21: Grooves
[0051] 3: Leaf spring type terminal
[0052] 31: Framework
[0053] 311: U-shaped plate
[0054] 312, 312', 312": hollow mouth
[0055] 313: Mouth-shaped plate
[0056] 314: Strip vertical board
[0057] 315: L-shaped bent rib
[0058] 32: Tenon
[0059] 321: Conical block
[0060] 322: L-shaped bending section
[0061] 33: Terminal
[0062] 331: First V-shaped turning section
[0063] 332: Second V-shaped turning section
[0064] W1, W2: width
Claims
1. A plug structure with a leaf spring type terminal, characterized in that: include: An insulating seat having a mounting surface, wherein the mounting surface is provided with a positioning groove and at least a pair of clamping grooves arranged on both sides of the positioning groove; a male terminal, inserted into the positioning slot and protruding from the mounting surface; and A leaf spring type terminal extends with at least a pair of tenons and a plurality of terminals, each of the tenons is engaged with each of the slots, and the plurality of terminals are arranged corresponding to the male terminals.
2. The plug structure with leaf spring type terminals according to claim 1, characterized in that: Each of the clamping slots has a tapered guide area and a tapered clamping area, and each of the tenon ends has a tapered clamping block that can be inserted from the tapered guide area and clamped in the tapered clamping area.
3. The plug structure with leaf spring type terminals according to claim 2, characterized in that: The width of each tapered guide area gradually decreases as it approaches the tapered latching area, and the width of each tapered latching area gradually increases as it approaches the tapered guide area. The shape of each tapered latching area matches that of each tapered latching block.
4. The plug structure with leaf spring type terminals according to claim 3, characterized in that: The leaf spring terminal has a frame sleeved on the male terminal, each of the tenons has an L-shaped bending section extending from the end of the frame, and each of the conical blocks is formed at the end of each of the L-shaped bending sections.
5. The plug structure with leaf spring type terminals according to claim 4, characterized in that: Part of each L-shaped bending section passes through each tapered guiding area.
6. The plug structure with leaf spring type terminals according to claim 1, characterized in that: The leaf spring type terminal has a frame mounted on the male terminal. The frame is a U-shaped plate arranged along the front, rear side surfaces and top surface of the male terminal. The U-shaped plate is provided with at least two hollow openings corresponding to the front and rear side surfaces. The multiple terminals extend from one side of the inner periphery of the at least two hollow openings into the at least two hollow openings.
7. The plug structure with leaf spring type terminals according to claim 1, characterized in that: The leaf spring type terminal has a frame mounted on the male terminal, and the frame is a mouth-shaped plate arranged along the front, rear side surfaces and left and right side surfaces of the male terminal. The mouth-shaped plate is provided with at least two hollow openings corresponding to the front and rear side surfaces, and the multiple terminals extend from one side of the inner periphery of the at least two hollow openings into the at least two hollow openings.
8. The plug structure with leaf spring type terminals according to claim 1, characterized in that: The top surface of the male terminal is concavely provided with at least one groove running through the front and rear side surfaces, the leaf spring type terminal has a frame sleeved on the outside of the male terminal, the frame has two strip uprights arranged corresponding to the front and rear side surfaces of the male terminal, and at least three L-shaped bent ribs extending from one of the strip uprights to the other strip upright and embedded in the at least one groove and corresponding to the left and right side surfaces of the male terminal, each of the strip uprights is provided with a hollow opening between each adjacent two L-shaped bent ribs, the multiple terminals are extended upward from the bottom side of the inner periphery of each hollow opening, and the extension directions of the at least three L-shaped bent ribs are staggered with each other.
9. The plug structure with leaf spring type terminals according to claim 6, 7 or 8, characterized in that: The plurality of terminals are arranged longitudinally side by side, and each terminal is bent to have at least one first V-shaped turning section abutting against the front and rear sides of the male terminal and at least one second V-shaped turning section with a bending direction opposite to the first V-shaped turning section.
10. The plug structure with leaf spring type terminals according to claim 1, characterized in that: The insulating seat is provided with a slot, and the mounting surface is formed on the inner bottom wall of the slot.