A ship-shaped overload protection switch

Abstract

This utility model provides a ship-shaped overload protection switch, including a switch body, a circuit board, a first terminal, a second terminal, a third terminal, a bimetallic strip, and two conductive elastic elements disposed on the switch body. The circuit board has an LED light and two contact portions. Both the first and second terminals include inserts and pin portions connected to the inserts, with each pin portion corresponding to a contact portion. The two conductive elastic elements are respectively installed between the two contact portions and the pin portions, and are used to electrically connect the contact portions to their corresponding pin portions. By integrating the LED light and contact portions on the circuit board, and by electrically connecting the two pin portions of the first and second terminals to their corresponding contact portions via conductive elastic elements, this structure is simpler and has lower production costs compared to existing technologies. Furthermore, the conductive elastic elements can provide continuous pressure, avoiding the risk of poor soldering and improving reliability.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, specifically to a ship-shaped overload protection switch. Background Technology

[0002] The rocker overload protection switch is a circuit protection device widely used in household appliances and industrial equipment. Its core function is to quickly cut off the power supply when an overcurrent or short circuit fault occurs in the circuit, protecting the downstream load and the safety of the circuit.

[0003] Ship-type overload protection switches generally integrate status indication functions and commonly use light-emitting diodes (LEDs) as visual display elements for working status. In the existing technology, the installation structure of LED status indicator has obvious defects. The two pins need to be manually bent and shaped during installation, and then fixed to the stationary terminal and neutral terminal inside the switch by welding. The above installation process is cumbersome and increases production costs. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defect that the installation of ship-shaped overload protection switches in the prior art is relatively complicated, so as to provide a ship-shaped overload protection switch that is simple to install and has low production cost.

[0005] Therefore, this utility model provides a ship-shaped overload protection switch, including a switch body, a circuit board, a first terminal, a second terminal, a third terminal, a bimetallic strip, and two conductive elastic elements. The circuit board is installed in the switch body and has an LED light and two contact portions. The first terminal, the second terminal, the third terminal, and the bimetallic strip are installed on the switch body. The second terminal has a stationary contact. One end of the bimetallic strip is connected to the third terminal, and the other end has a moving contact. Both the first terminal and the second terminal include a insert and a pin portion connected to the insert. The two pin portions are respectively arranged corresponding to the two contact portions. The two conductive elastic elements are respectively installed between the two contact portions and the pin portions. The conductive elastic elements are used to electrically connect the contact portions to the corresponding pin portions.

[0006] The conductive elastic element is a spring, with one end of the spring abutting against the contact portion and the other end abutting against the pin portion.

[0007] The switch body has a mounting post with a mounting groove for mounting the spring and a slot on its side wall for the pin to be inserted.

[0008] The circuit board is disposed on the top of the mounting post, and also includes a lampshade connected to the switch body for fixing the circuit board.

[0009] The lampshade is assembled with the mounting post via an elastic hook structure. The elastic hook structure includes elastic hooks on both sides of the lampshade and hook blocks on the outer wall of the mounting post that cooperate with the elastic hooks.

[0010] A positioning structure is provided between the lampshade and the circuit board. The positioning structure includes a positioning groove on the circuit board and a positioning block on the lampshade that is adapted to and connected to the positioning groove.

[0011] The switch body has a partition, the circuit board, the conductive elastic element and the pin portion are arranged above the partition, the third terminal and the bimetallic strip are arranged below the partition, and the insert is located below the partition and is connected to the pin portion through a connecting part.

[0012] The switch body includes a base and a cover plate that interlock with each other. The base is provided with the partition plate, and the connecting part is disposed adjacent to the inner wall of the cover plate.

[0013] The circuit board is provided with at least one resistor that is electrically connected to the LED.

[0014] The technical solution of this utility model has the following advantages:

[0015] 1. The ship-shaped overload protection switch provided by this utility model includes a circuit board, a first terminal, a second terminal, a third terminal, a bimetallic strip, and a conductive elastic element. The circuit board integrates an LED light and a contact portion. Both the first terminal and the second terminal include a plug and a pin portion connected to the plug. The two pin portions are electrically connected to the corresponding contact portions through the conductive elastic element. This structure is simpler, has lower production costs, and the conductive elastic element can provide continuous pressure, avoiding the risk of poor soldering and improving reliability.

[0016] 2. The ship-shaped overload protection switch provided by this utility model has a mounting post inside the switch body. The mounting post has a mounting groove for mounting a spring and a slot located on its side wall. The slot allows the pin to be inserted, thereby preventing the pin from becoming loose. The mounting groove and slot respectively realize the mounting and positioning of the spring and the pin, which has the advantages of simple structure and stability.

[0017] 3. The boat-shaped overload protection switch provided by this utility model has a lampshade assembled with a mounting post through an elastic hook structure, which makes installation quick and convenient and presses the circuit board firmly and fixed on the mounting post. Furthermore, a positioning structure is provided between the lampshade and the circuit board. The positioning structure includes a positioning groove on the circuit board and a positioning block on the lampshade that is adapted to and connected to the positioning groove, thereby preventing the circuit board from shifting. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the ship-shaped overload protection switch of this utility model;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure after removing the cover plate;

[0021] Figure 3 for Figure 1 A 3D view after removing the switch body and button;

[0022] Figure 4 for Figure 1 A 3D view after removing the buttons and cover plate;

[0023] Figure 5 for Figure 4 A 3D view after removing the lampshade and circuit board;

[0024] Figure 6 A three-dimensional view of the base;

[0025] Figure 7 This is an exploded structural diagram of the lampshade, circuit board, and conductive elastic component.

[0026] Explanation of reference numerals in the attached drawings: 1. Switch body; 2. Circuit board; 3. LED light; 4. Contact part; 5. Stationary contact; 6. Moving contact; 7. Insert; 8. Pin part; 9. Conductive elastic element; 10. Mounting post; 11. First terminal; 12. Second terminal; 13. Third terminal; 14. Bimetallic strip; 15. Mounting groove; 16. Slot; 17. Lamp cover; 18. Elastic hook; 19. Hook block; 20. Positioning groove; 21. Positioning block; 22. Partition; 23. Connecting part; 24. Base; 25. Cover plate; 26. Resistor. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0031] Example

[0032] This embodiment provides a ship-type overload protection switch, such as... Figure 1 and Figure 2 As shown, it includes a switch body 1, a circuit board 2, a first terminal 11, a second terminal 12, a third terminal 13, a bimetallic strip 14, and a conductive elastic element 9.

[0033] Switch body 1, such as Figure 1 As shown, it includes a base 24 and a cover plate 25 that interlock with each other, as... Figure 2 and Figure 4 As shown, a partition 22 is provided in the middle of the base 24. The circuit board 2 and the conductive elastic element 9 are arranged above the partition 22, and the third terminal 13 and the bimetallic strip 14 are arranged below the partition 22. Figure 5 and Figure 6 As shown, the top surface of the partition 22 is provided with a mounting post 10, which has a mounting groove 15 for mounting the conductive elastic element 9, and a slot 16 located on its side wall, which allows the pin portion 8 of the first terminal 11 and the second terminal 12 to be inserted.

[0034] Circuit board 2 is installed inside the switch body 1, such as Figure 7As shown, the circuit board 2 is equipped with an LED light 3, a resistor 26, and two contact portions 4. In this embodiment, the LED light 3 and the resistor 26 are both fixed to the circuit board 2 in a surface mount form. The circuit board 2 is disposed on the top of the mounting post 10 and is fixed to the switch body 1 by the lamp cover 17, as shown. Figure 6 and Figure 7 As shown, the lampshade 17 is assembled with the mounting post 10 via an elastic hook structure. The elastic hook structure includes elastic hooks 18 on both sides of the lampshade 17 and hook blocks 19 on the outer wall of the mounting post 10 that cooperate with the elastic hooks 18. A positioning structure is provided between the lampshade 17 and the circuit board 2. The positioning structure includes a positioning groove 20 on the circuit board 2 and a positioning block 21 on the lampshade 17 that is adapted to and connected to the positioning groove 20.

[0035] like Figure 2 and Figure 3 As shown, a first terminal 11, a second terminal 12, a third terminal 13, and a bimetallic strip 14 are mounted on the switch body 1. The second terminal 12 has a stationary contact 5. One end of the bimetallic strip 14 is connected to the third terminal 13, and the other end has a moving contact 6. Both the first terminal 11 and the second terminal 12 include a plug 7, a connecting part 23, and a pin part 8 connected in sequence. The two pin parts 8 are respectively arranged corresponding to the two contact parts 4. In this embodiment, the plug 7 has a base 24 arranged vertically and is located below the partition 22. The pin part 8 is arranged horizontally above the partition 22. The connecting part 23 is arranged adjacent to the inner wall of the cover plate 25. It should be noted that the first terminal 11 and the second terminal 12 are spaced apart along the length of the switch body 1. The first terminal 11 is a neutral terminal, and the second terminal 12 is a stationary terminal. The first terminal 11, the circuit board 2, the second terminal 12, and the two conductive elastic elements 9 can form a conductive circuit.

[0036] As a variable implementation, the first terminal 11 and the second terminal 12 are spaced apart along the length direction of the switch body 1.

[0037] like Figure 5 and Figure 7 As shown, two conductive elastic elements 9 are respectively installed between the two contact portions 4 and the pin portions 8. The conductive elastic elements 9 are used to electrically connect the contact portions 4 and the corresponding pin portions 8. In this embodiment, the conductive elastic element 9 is a spring, with one end of the spring abutting against the contact portion 4 and the other end abutting against the pin portion 8.

[0038] The ship-shaped overload protection switch provided by this utility model includes a circuit board 2, a first terminal 11, a second terminal 12, a third terminal 13, a bimetallic strip 14, and a conductive elastic element 9. An LED light 3 and a contact part 4 are integrated through the circuit board 2. Both the first terminal 11 and the second terminal 12 include a plug 7 and a pin part 8 connected to the plug 7. The two pin parts 8 are electrically connected to the corresponding contact parts 4 through the conductive elastic element 9. This structure is simpler, the production cost is lower, and the conductive elastic element 9 can provide continuous pressure, avoiding the risk of poor soldering and improving reliability.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A ship-shaped overload protection switch, characterized in that, include: Switch body (1); A circuit board (2) is installed inside the switch body (1). The circuit board (2) is provided with an LED light (3) and two contact parts (4). The first terminal (11), the second terminal (12), the third terminal (13) and the bimetallic strip (14) are mounted on the switch body (1). The second terminal (12) is provided with a stationary contact (5). One end of the bimetallic strip (14) is connected to the third terminal (13) and the other end is provided with a moving contact (6). The first terminal (11) and the second terminal (12) both include a insert (7) and a pin portion (8) connected to the insert (7). The two pin portions (8) are respectively provided with corresponding contact portions (4). Two conductive elastic elements (9) are respectively installed between the two contact portions (4) and the pin portions (8), and the conductive elastic elements (9) are used to electrically connect the contact portions (4) and the corresponding pin portions (8).

2. The ship-type overload protection switch according to claim 1, characterized in that, The conductive elastic element (9) is a spring, one end of which abuts against the contact portion (4), and the other end abuts against the pin portion (8).

3. The ship-type overload protection switch according to claim 2, characterized in that, The switch body (1) is provided with a mounting post (10), the mounting post (10) having a mounting groove (15) for mounting the spring, and a slot (16) located on its side wall for the pin portion (8) to be inserted.

4. The ship-type overload protection switch according to claim 3, characterized in that, The circuit board (2) is disposed on the top of the mounting post (10) and also includes a lampshade (17) connected to the switch body (1) for fixing the circuit board (2).

5. The ship-type overload protection switch according to claim 4, characterized in that, The lampshade (17) is assembled with the mounting post (10) via an elastic hook structure. The elastic hook structure includes elastic hooks (18) on both sides of the lampshade (17) and hook blocks (19) on the outer wall of the mounting post (10) that cooperate with the elastic hooks (18).

6. The ship-type overload protection switch according to claim 4 or 5, characterized in that, A positioning structure is provided between the lampshade (17) and the circuit board (2). The positioning structure includes a positioning groove (20) on the circuit board (2) and a positioning block (21) on the lampshade (17) that is adapted to and connected to the positioning groove (20).

7. The ship-type overload protection switch according to claim 1, characterized in that, The switch body (1) is provided with a partition (22). The circuit board (2), the conductive elastic element (9) and the pin part (8) are arranged above the partition (22). The third terminal (13) and the bimetallic strip (14) are arranged below the partition (22). The insert (7) is located below the partition (22) and is connected to the pin part (8) through the connecting part (23).

8. The ship-type overload protection switch according to claim 7, characterized in that, The switch body (1) includes a base (24) and a cover plate (25) that are interlocked. The base (24) is provided with the partition plate (22), and the connecting part (23) is provided adjacent to the inner wall of the cover plate (25).

9. The ship-type overload protection switch according to claim 1, characterized in that, The circuit board (2) is provided with at least one resistor (26) that is electrically connected to the LED lamp (3).

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