A terminal which can be directly soldered
By designing a directly solderable terminal block, the problems of complex structure and high production cost of existing terminal blocks are solved, achieving the effects of simplifying the soldering process, improving production efficiency and connection reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHIHENG ZHUONANG ELECTRIC TECH (CHUZHOU) CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-05
AI Technical Summary
Existing terminal blocks require matching socket terminals and plug terminals during soldering, resulting in a complex structure and high production costs.
A terminal block that can be directly soldered is designed, which simplifies the soldering process by directly soldering to the PCB board through solder pin clips. The stability is enhanced by the spring groove and clip boss structure, the limiting hole and the wing structure, and multiple terminal body shells can be spliced to adapt to different circuit requirements.
It simplifies the welding process, improves production efficiency and connection reliability, reduces costs, and enhances the stability and applicability of the structure.
Smart Images
Figure CN224328901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical connector technology, specifically to a terminal block that can be directly soldered. Background Technology
[0002] Terminal blocks are key components in electrical connections, widely used in various electrical equipment and circuit systems. Despite their compact size, they offer reliable connections, quickly and securely linking different wires to ensure safe and stable current transmission. Terminal blocks come in various forms, including plug-in and screw-type, to suit different installation scenarios and wire specifications. They are typically made of highly conductive metals and equipped with an insulating shell to ensure electrical connection while preventing leakage. With their advantages of easy installation and high reliability, terminal blocks have become fundamental components in building electrical systems, facilitating the smooth flow of power and signals. However, existing terminal blocks still have certain problems in use:
[0003] For example, a terminal block with an anti-detachment structure, as described in application number 202220777934.6, includes a female terminal and a male terminal. The female and male terminals can be locked and unlocked. When locked, the external conductor in the stamped port of the male terminal is connected to the conductor piece of the circuit board of the female terminal. The conductor piece is electrically connected to the corresponding terminal block, which is used to connect to an external wire. The wiring and terminal block are located inside the female end core of the female terminal. The terminal block also includes a through hole that penetrates one side of the female end core and the terminal block. A screw is located inside the through hole, and the inner surface of the through hole is threaded. The screw can rotate up and down along the thread. An anti-detachment structure is provided at the top of the through hole. However, in the electrical connector industry, to achieve the functions of soldering the terminal to the PCB board and wiring, matching socket terminals and plug terminals are required. Moreover, the existing terminal block structure is complex and the production cost is high.
[0004] In view of this, in-depth research was conducted on the above issues, which led to the creation of this case.
[0005] To address the aforementioned issues, an innovative design was implemented based on the existing terminal blocks. Utility Model Content
[0006] The purpose of this utility model is to provide a terminal block that can be directly welded, so as to solve the problems of inconvenient welding and complex structure and high production cost mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A terminal block that can be directly soldered includes a terminal body shell, a wire, and a PCB board. The PCB board is located on the right side of the terminal body shell, and the wire passes through the interior of the terminal body shell. A button groove is located on the left side of the interior of the terminal body shell, and a receiving groove is connected to the right side of the button groove, with the receiving groove located inside the terminal body shell. A soldering pin clip is located inside the terminal body shell, and the soldering pin clip includes a clip boss structure, a wing structure, and a soldering pin body. A spring body is located inside the terminal body shell, and the spring body and the soldering pin clip form a fixing structure for the button body. A dovetail structure is located on the top of the terminal body shell, and a dovetail groove is located on the bottom of the terminal body shell.
[0009] Preferably, a button body is provided on the upper left side of the terminal body housing, and the button body is installed through the button slot.
[0010] Using the above technical solution, the button body located on the upper left side of the terminal body shell is installed inside the button slot, making it convenient for operators to press the button body to control the internal structure. The operation is simple and convenient.
[0011] Preferably, a spring groove is provided on the upper part of the spring body, and a clamping boss structure is provided on the upper part of the welding needle clamp, and the spring groove and the clamping boss structure are connected in a concave-convex manner.
[0012] By adopting the above technical solution, the spring groove on the upper part of the spring body and the clamping boss structure on the upper part of the welding pin clamp are connected in a concave-convex manner. This connection method enhances the stability between the spring body and the welding pin clamp, ensuring that the two will not easily shift during operation and guaranteeing the reliability of the internal structure of the terminal block.
[0013] Preferably, a limiting hole is provided on the upper surface of the terminal body shell, and a wing structure is provided on the upper right side of the welding pin clip, and the wing structure passes through the limiting hole to form a limiting structure.
[0014] By adopting the above technical solution, the limiting hole opened on the upper surface of the terminal body shell and the flying wing structure on the upper right side of the welding pin clamp form a limiting structure, which effectively limits the range of motion of the welding pin clamp, so that it works within the specified position, thereby improving the accuracy and stability of the terminal during use.
[0015] Preferably, the right end of the welding pin clip is provided with a welding pin body, and a welding pin hole is opened in the middle of the PCB board, and the welding pin body passes through the welding pin hole and is fixed by solder.
[0016] Using the above technical solution, the soldering pin body at the right end of the soldering pin clip passes through the soldering pin hole in the middle of the PCB board and is fixed by solder. This direct soldering method simplifies the connection steps between the terminal block and the PCB board, reduces the additional components required for matching soldering, and improves the convenience of soldering and the firmness of the connection.
[0017] Preferably, the terminal body housing has a wire inlet hole on the bottom left side, and the wire passes through the wire inlet hole.
[0018] The above technical solution provides a standard wire entry channel for the wire by setting the wire inlet hole on the bottom left side of the terminal body shell, which makes it easier for the wire to be accurately inserted into the interior of the terminal body shell, making the wiring operation more standardized and convenient, and reducing the probability of wiring errors.
[0019] Preferably, the terminal body shell is provided in multiple ways, and the multiple terminal body shells are connected in a splicing structure, and the dovetail structure on the top of the terminal body shell and the dovetail groove at the bottom of the stacked terminal body shell form a connection structure.
[0020] The above technical solution involves multiple terminal body shells arranged in a splicing structure, with the upper dovetail structure connecting to the bottom dovetail groove of the terminal body shell stacked on top. This allows for flexible splicing of multiple terminals according to actual circuit requirements, expanding the number and methods of circuit connections and improving the applicability and flexibility of the terminals.
[0021] Compared with the prior art, the beneficial effects of this utility model are: the terminal block that can be directly soldered,
[0022] 1. Simplified welding and connection process: By directly welding the welding pin body to the welding pin hole on the PCB board, the complex matching welding components are eliminated, greatly simplifying the welding steps; at the same time, the wire inlet hole standardizes the wire access, making the wiring and welding operations more convenient and efficient, and improving production and installation efficiency.
[0023] 2. Enhanced structural stability and applicability: The concave-convex connection of the spring groove and the clamping boss structure, as well as the limiting fit of the limiting hole and the flying wing structure, enhances the stability of the internal structure of the terminal block; multiple terminal body shells are spliced together by dovetail structure and dovetail groove, which can be flexibly combined according to different circuit requirements, improving the applicability of the terminal block in various electrical connection scenarios. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the welded front structure of this utility model;
[0026] Figure 3This is a schematic diagram of the front structure of the wiring of this utility model;
[0027] Figure 4 This is a schematic diagram of the splicing structure of this utility model.
[0028] In the diagram: 1. Terminal body shell; 101. Button groove; 102. Receiving groove; 103. Limiting hole; 104. Wire inlet hole; 105. Dovetail structure; 106. Dovetail groove; 2. Button body; 3. Solder pin clamp; 301. Clamp boss structure; 302. Flying wing structure; 303. Solder pin body; 4. Spring body; 401. Spring groove; 5. Wire; 6. PCB board; 601. Solder pin hole. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Please see Figure 1-4 This utility model provides a technical solution:
[0031] A terminal block that can be directly soldered includes a terminal body shell 1, a wire 5, and a PCB board 6. The PCB board 6 is located on the right side of the terminal body shell 1, and the wire 5 passes through the interior of the terminal body shell 1. A button groove 101 is located on the left side of the interior of the terminal body shell 1, and a receiving groove 102 is connected to the right side of the button groove 101. The receiving groove 102 is located inside the terminal body shell 1. A soldering pin clip 3 is located inside the terminal body shell 1, and the soldering pin clip 3 includes a clip boss structure 301, a wing structure 302, and a soldering pin body 303. A spring body 4 is located inside the terminal body shell 1, and the spring body 4 and the soldering pin clip 3 form a fixing structure for the button body 2. A dovetail structure 105 is located on the top of the terminal body shell 1, and a dovetail groove 106 is located on the bottom of the terminal body shell 1.
[0032] A button body 2 is provided on the upper left side of the terminal body shell 1, and the button body 2 is installed through the button slot 101. The button body 2 on the upper left side of the terminal body shell 1 passes through the button slot 101, which is convenient for users to operate. By pressing the button body 2, the internal structure can be flexibly controlled to achieve functions such as clamping or loosening the wire 5, thereby improving the ease of use.
[0033] A spring groove 401 is provided on the upper part of the spring body 4, and a clamping boss structure 301 is provided on the upper part of the soldering pin clip 3. The spring groove 401 and the clamping boss structure 301 are connected in a concave-convex manner. A limiting hole 103 is provided on the upper surface of the terminal body shell 1. A wing structure 302 is provided on the upper right side of the soldering pin clip 3, and the wing structure 302 passes through the limiting hole 103 to form a limiting structure. A soldering pin body 303 is provided at the right end of the soldering pin clip 3. A soldering pin hole 601 is provided in the middle of the PCB board 6, and the soldering pin body 303 passes through the soldering pin hole 601 and is fixed by solder. The spring groove 401 of the spring body 4 and the clamping boss structure 301 of the soldering pin clip 3 are connected in a concave-convex manner, so that the spring body 4 and the soldering pin clip 3 are connected in a concave-convex manner. The pin clip 3 is tightly and stably connected, ensuring that it will not easily separate due to vibration or external force during use, thus guaranteeing the electrical connection stability of the terminal block. The limiting hole 103 on the terminal body shell 1 and the wing structure 302 of the pin clip 3 form a limiting structure, precisely limiting the position and range of motion of the pin clip 3, preventing the pin clip 3 from falling off, and ensuring the accuracy of the welding and connection between the pin body 303 and the PCB board 6. The pin body 303 of the pin clip 3 passes through the pin hole 601 of the PCB board 6 and is fixed with solder, realizing the direct welding of the terminal block and the PCB board 6, simplifying the connection steps. Compared with the traditional connection method, it reduces intermediate adapters, reduces costs, and enhances the reliability of the connection.
[0034] A wire inlet hole 104 is provided on the bottom left side of the terminal body housing 1, and the wire 5 passes through the wire inlet hole 104. The wire inlet hole 104 on the bottom left side of the terminal body housing 1 provides a standard channel for the wire 5 to pass through, which makes it convenient for the wire 5 to be quickly and accurately connected to the inside of the terminal body housing 1, avoiding problems such as tangling and misalignment when the wire 5 is connected, and improving wiring efficiency.
[0035] Multiple terminal body shells 1 are provided, and the multiple terminal body shells 1 form a splicing structure on top of each other. The dovetail structure 105 on the top of the terminal body shell 1 and the dovetail groove 106 at the bottom of the stacked terminal body shell 1 form a connection structure. The multiple terminal body shells 1 are spliced together by the dovetail structure 105 and the dovetail groove 106. The number and arrangement of the terminals can be flexibly combined according to the actual circuit wiring requirements, which improves the versatility and adaptability of the product and meets the diverse connection requirements of different electrical equipment.
[0036] Working principle:
[0037] In use, the wire 5 is first inserted into the terminal body housing 1 through the inlet hole 104. The button body 2 is then pressed, and the wire 5 can be fixed or released using the mating structure between the button body 2, the spring body 4, and the solder pin clamp 3. During soldering, the solder pin body 303 is aligned with the solder pin hole 601 on the PCB board 6, and the two are soldered together to achieve electrical connection between the terminal and the PCB board 6. During this process, the concave-convex connection between the spring groove 401 and the clamp boss structure 301, and the limiting structure between the limiting hole 103 and the wing structure 302, ensure the stability of the internal components such as the solder pin clamp 3, preventing displacement during soldering or use. When circuit connections need to be expanded, multiple terminal body housings 1 can be spliced together using the upper dovetail structure 105 and the lower dovetail groove 106 to meet different circuit connection requirements.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A terminal block that can be directly soldered, comprising a terminal body housing (1), a wire (5), and a PCB board (6), wherein the PCB board (6) is disposed on the right side of the terminal body housing (1), and the wire (5) passes through the interior of the terminal body housing (1), characterized in that: A button groove (101) is provided on the left side inside the terminal body shell (1), and a receiving groove (102) is connected to the right side of the button groove (101). The receiving groove (102) is located inside the terminal body shell (1). A welding pin clip (3) is provided inside the terminal body shell (1). The welding pin clip (3) includes a clip boss structure (301), a wing structure (302), and a welding pin body (303). A spring body (4) is provided inside the terminal body shell (1). The spring body (4) and the welding pin clip (3) form a fixing structure for the button body (2). A dovetail structure (105) is provided above the terminal body shell (1), and a dovetail groove (106) is provided below the terminal body shell (1).
2. The terminal block that can be directly soldered according to claim 1, characterized in that: A button body (2) is provided on the upper left side of the terminal body shell (1), and the button body (2) is installed through the button slot (101).
3. A terminal block that can be directly soldered according to claim 1, characterized in that: The spring body (4) is provided with a spring groove (401) on top, and the welding needle clamp (3) is provided with a clamping boss structure (301) on top, and the spring groove (401) and the clamping boss structure (301) are connected in a concave-convex manner.
4. A terminal block that can be directly soldered according to claim 1, characterized in that: The terminal body shell (1) has a limiting hole (103) on its upper surface, and a flying wing structure (302) is provided on the upper right side of the welding pin clip (3), and the flying wing structure (302) passes through the limiting hole (103) to form a limiting structure.
5. A terminal block that can be directly soldered according to claim 1, characterized in that: The right end of the welding needle clip (3) is provided with a welding needle body (303), and a welding needle hole (601) is opened in the middle of the PCB board (6), and the welding needle body (303) passes through the welding needle hole (601) and is fixed by solder.
6. A terminal block that can be directly soldered according to claim 1, characterized in that: The terminal body housing (1) has a wire inlet hole (104) on the bottom left side, and the wire (5) passes through the wire inlet hole (104).
7. A terminal block that can be directly soldered according to claim 1, characterized in that: The terminal body shell (1) is provided in multiple ways, and the multiple terminal body shells (1) form a splicing structure on the top and bottom. The dovetail structure (105) on the top of the terminal body shell (1) and the dovetail groove (106) at the bottom of the stacked terminal body shell (1) form a connection structure.