A straight-in type spring terminal

Abstract

This invention discloses a direct-insertion spring-loaded terminal block, comprising a base and a housing. The base and housing have a uniformly symmetrical structure, increasing the creepage distance to 12.5mm and the rated voltage to 1000V. The base and housing are detachably mounted. An integrated spring sheet and a conductive sheet are snapped together inside the base, with the top of the integrated spring sheet contacting the bottom of the conductive sheet. Two sets of rotating blocks are rotatably connected inside the base, and these two sets of rotating blocks contact the integrated spring sheet. The rotating blocks compress the integrated spring sheet, forming a lever mechanism between them. This reduces effort and time during pressing, and enhances safety. By replacing the traditional single-sided spring sheet with an integrated spring sheet, installation only requires the entire integrated spring sheet to be installed, reducing the number of parts. Simultaneously, the integrated spring sheet provides safer conductive current diversion and higher mechanical support performance.

Description

Technical Field

[0001] This invention relates to the field of spring-loaded terminal technology, specifically a direct-insertion spring-loaded terminal. Background Technology

[0002] Terminal blocks are accessories used to achieve electrical connections. In industry, they are classified as connectors. With the increasing level of industrial automation and the increasingly stringent and precise requirements of industrial control, the usage of terminal blocks is gradually increasing. With the development of the electronics industry, the application scope of terminal blocks is expanding, and the types are also increasing. In addition to PCB board terminals, the most widely used types include hardware terminals, nut terminals, spring terminals, etc.

[0003] Existing straight-insertion spring contacts use a linear downward-pressing spring structure, which requires strong downward pressure and is prone to slippage, leading to operational safety accidents. Moreover, existing spring contacts are single-sided, requiring one spring contact on each side for installation, making installation cumbersome. In addition, existing terminals use a vertical 90° wire entry method for installation, which is not convenient and quick. Furthermore, most existing terminals expose metal parts, resulting in lower safety. In addition, existing terminals have low rated voltages due to creepage distance limitations, and installation requires distinguishing between the positive and negative sides, leading to low installation efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a direct-insertion spring terminal, which forms a rotating lever structure by means of a rotating block and an integral spring sheet, thereby preventing slippage when pressed down, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a direct-insertion spring contact terminal, comprising a base and a housing, wherein the base and housing have a uniformly symmetrical structure and are detachably installed; an integral spring sheet and a conductive sheet are snapped into the interior of the base; a reverse spring sheet is integrally formed on the surface of the integral spring sheet; the top of the integral spring sheet contacts the bottom of the conductive sheet; two sets of rotating blocks are rotatably connected inside the base; the two sets of rotating blocks contact the integral spring sheet; the rotating blocks press the integral spring sheet, causing it to deform under force, and the conductor is clamped by the spring sheet's own rebound force.

[0006] Preferably, the integrated spring sheet and the conductive sheet are both symmetrical structures, and the two sets of rotating blocks are symmetrically and uniformly distributed inside the substrate.

[0007] Preferably, the top of the substrate and the shell are provided with two sets of test holes, which are symmetrically and evenly distributed on the top of the shell and the substrate.

[0008] Preferably, the base and the shell have two sets of cable inlets on their sides, and the bottom of the two sets of cable inlets is at an angle of 15° to the horizontal plane.

[0009] Preferably, the surface of the substrate is integrally formed with a self-expanding undercut, and the interior of the shell is provided with a cavity that matches the self-expanding undercut, and the self-expanding undercut engages inside the cavity.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The rotating block compresses the integrated spring sheet when it rotates, forming a lever mechanism between the rotating block and the integrated spring sheet, which saves effort and time when pressing and is safer.

[0012] 2. By replacing the traditional single-sided spring sheet with an integrated spring sheet, installation only requires installing the integrated spring sheet as a whole, reducing the number of parts. At the same time, the integrated spring sheet has a safer conductive current diversion function and higher mechanical support performance.

[0013] 3. By setting the angle between the inlet and the horizontal plane to 15°, the inlet efficiency is improved while saving inlet materials;

[0014] 4. By opening symmetrical bidirectional test holes on the top of the base and the shell, wiring and testing are convenient and the convenience is improved;

[0015] 5. By designing the base and shell as a fully enclosed structure, the overall mechanical properties are improved, as are the overall electrical properties;

[0016] 6. The self-expanding undercut and cavity design ensures a tight fit in the Y and Z directions, preventing detachment. Meanwhile, the front and back of the base and shell are stopped by plastic rotating blocks, preventing deformation and increasing the overall mechanical strength.

[0017] 7. By increasing the creepage distance by 12.5mm, the rated voltage is increased to 1000V, thereby improving the overall electrical performance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0019] Figure 2 This is a front structural diagram of the integrated spring sheet of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the substrate of the present invention;

[0021] Figure 4 This is a schematic diagram of the main structure of the rotating block of the present invention;

[0022] Figure 5 This is a schematic diagram of the connection structure between the rotating block and the base of the present invention;

[0023] Figure 6 This is a schematic diagram of the connection structure between the substrate and the shell of the present invention;

[0024] Figure 7 This is a schematic diagram of the connection structure between the rotating block and the integrated spring sheet of the present invention.

[0025] In the diagram: 1. Substrate; 2. Shell; 3. Test hole; 4. Integrated spring sheet; 41. Reverse spring sheet; 5. Conductive sheet; 6. Inlet; 7. Rotating block; 8. Self-expanding inverted clip; 9. Cavity. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-7 This invention provides a technical solution: a direct-insertion spring contact terminal, including a base 1 and a housing 2. The base 1 and housing 2 have a uniformly symmetrical structure, and the base 1 and housing 2 are detachably installed. An integral spring sheet 4 and a conductive sheet 5 are snapped into the inside of the base 1. A reverse spring sheet 41 is integrally formed on the surface of the integral spring sheet 4. The top of the integral spring sheet 4 contacts the bottom of the conductive sheet 5. Two sets of rotating blocks 7 are rotatably connected inside the base 1. The two sets of rotating blocks 7 are in contact with the integral spring sheet 4. When the rotating blocks 7 are rotated, the integral spring sheet 4 is squeezed, causing the integral spring sheet 4 to deform. The elastic force of the integral spring sheet 4 locks the wire. The rotating blocks 7 are made of plastic, so that the front and back of the base 1 and housing 2 are stopped by the plastic rotating blocks 7, which will not deform and increases the overall mechanical strength.

[0028] Both the integrated spring sheet 4 and the conductive sheet 5 are symmetrical structures. The two sets of rotating blocks 7 are symmetrically and evenly distributed inside the base 1. By setting the spring sheet as an integrated structure, multiple parts are not required to work together, which reduces the cost of production management. At the same time, the integrated spring sheet 4 has the function of conductive current diversion, which improves the conductivity of the terminal.

[0029] Two sets of test holes 3 are provided on the top of the base 1 and the shell 2. The two sets of test holes 3 are symmetrically and evenly distributed on the top of the shell 2 and the base 1. The symmetrical arrangement of the two sets of test holes 3 makes it more operable.

[0030] The sides of the base 1 and the shell 2 are provided with two sets of cable inlets 6. The bottom of the two sets of cable inlets 6 is at an angle of 15° to the horizontal plane. Setting the cable inlets at a 15° angle allows for quick guidance and positioning when the cable is inserted, thereby improving installation efficiency.

[0031] The surface of the base 1 is integrally formed with a self-expanding buckle 8, and the interior of the shell 2 is provided with a cavity 9 that matches the self-expanding buckle 8. The self-expanding buckle 8 is engaged inside the cavity 9. The arrangement of the self-expanding buckle 8 and the cavity 9 ensures a tight fit in the Y and Z directions, preventing the base 1 from falling off the shell 2.

[0032] When the rotating block 7 rotates, it will press the integrated spring plate 4 through the bottom of the rotating block 7. The integrated spring plate 4 will deform and fix one end of the wire entering from the inlet 6 through the elastic force of the integrated spring plate 4. At the same time, the integrated spring plate 4 will press the reverse spring plate 41 when it deforms. The reverse spring plate 41 will have an elastic force in the opposite direction to the integrated spring plate 4, thereby strengthening the clamping of the wire.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A direct insertion contact comprising a base body (1) and a housing (2), characterized in that: The base body (1) and the shell (2) are uniformly symmetrical, and the base body (1) and the shell (2) are detachably installed; the inside of the base body (1) is clamped with an integrated spring sheet (4) and a conductive sheet (5); the surface of the integrated spring sheet (4) is integrally formed with a reverse spring sheet (41); the top of the integrated spring sheet (4) is in contact with the bottom of the conductive sheet (5); the inside of the base body (1) is rotatably connected with two groups of rotating blocks (7); the two groups of rotating blocks (7) are in contact with the integrated spring sheet (4); the integrated spring sheet (4) and the conductive sheet (5) are symmetrical; the two groups of rotating blocks (7) are uniformly and symmetrically distributed in the base body (1); the top of the base body (1) and the shell (2) is provided with two groups of test holes (3); the two groups of test holes (3) are uniformly and symmetrically distributed on the top of the shell (2) and the base body (1); the side surface of the base body (1) and the shell (2) is provided with two groups of wire inlet ports (6); the angle between the bottom of the two groups of wire inlet ports (6) and the horizontal plane is 15°; the surface of the base body (1) is integrally formed with a self-expanding reverse buckle (8); the inside of the shell (2) is provided with a cavity (9) matched with the self-expanding reverse buckle (8); and the self-expanding reverse buckle (8) is clamped in the inside of the cavity (9).

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