Electricity taking mechanism for RCCB type leakage protector

Abstract

The utility model discloses an electricity-taking mechanism for an RCCB type leakage protector, which comprises a first wiring board and a second wiring board which are respectively arranged in the leakage protector, the outside of the first wiring board is connected with a static contact, one side of the static contact is provided with a moving contact, the outside of the moving contact is electrically connected with a button electricity-taking spring through a contact spring, and the button electricity-taking spring is electrically connected with the second wiring board. A first power connection part is arranged on the button power taking spring, a button spring is arranged above the first power connection part, one end of the button spring is connected with the second wiring board through a test resistor, a test part is formed at the other end of the button spring, a test button is arranged above the test part, and the test button is used for driving the test part to be attached to the first power connection part after being pressed. According to the utility model, the installation and wiring difficulty of the electricity taking mechanism can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to a leakage current trip device, and more particularly to a power supply mechanism for an RCCB type leakage current protection device. Background Technology

[0002] To enable the leakage current testing function of a residual current device (RCCB), current manufacturers incorporate a power-taking mechanism within the RCCB. This mechanism connects the L (Low) and N (N) terminals of the RCCB. When the RCCB is energized and closed, pressing the test button generates residual operating current, causing the RCCB to trip and thus performing the test. However, when the RCCB is open, the test resistor in the power-taking mechanism is de-energized, rendering the test function ineffective.

[0003] However, the drawback of this power-taking mechanism is that existing power-taking mechanisms generally use the method of welding copper wires to realize the electrical connection function of various components in the residual current device (RCCB). This welding method increases the manufacturing difficulty of the RCCB type residual current device. On the other hand, the flexible copper wires can easily occupy the internal space of the residual current device after wiring. Operators need to insert the copper wires into the corners of the device housing to prevent them from interfering with other functional components inside the residual current device, which further increases the assembly difficulty of the RCCB type residual current device.

[0004] Therefore, the power supply mechanism of the existing RCCB type residual current device has the problem of installation difficulties. Utility Model Content

[0005] The purpose of this invention is to provide a power-taking mechanism for an RCCB type residual current device. It effectively reduces the difficulty of installing and wiring the power-taking mechanism.

[0006] The technical solution of this utility model: The power-taking mechanism for an RCCB type residual current device includes a first terminal block and a second terminal block respectively disposed inside the residual current device. A stationary contact is connected to the outside of the first terminal block, and a moving contact is provided on one side of the stationary contact. A button power-taking spring is electrically connected to the outside of the moving contact via a contact spring. A first contact part is provided on the button power-taking spring, and a button spring is provided above the first contact part. One end of the button spring is connected to the second terminal block via a test resistor, and the other end of the button spring forms a test part. A test button is provided above the test part. The test button is used to drive the test part to fit together with the first contact part after being pressed.

[0007] The aforementioned RCCB type leakage current protection device power-taking mechanism also includes an actuator. The actuator has a rotating plate, and the moving contact and the contact spring are both connected to the rotating plate. One end of the contact spring is electrically connected to the moving contact, and the other end of the contact spring extends to the outside of the rotating plate and is in contact with the button power-taking spring.

[0008] In the aforementioned RCCB type residual current device power-taking mechanism, the rotating plate is rotatably connected inside the residual current device via a rotating shaft, the contact spring is sleeved on the outside of the rotating shaft, one end of the contact spring is in contact with the moving contact, and the other end of the contact spring extends to the outside of the rotating plate and forms a second contact part.

[0009] In the aforementioned RCCB type leakage current protection device power-taking mechanism, the button power-taking spring is fixedly connected inside the leakage current protection device. One end of the button power-taking spring is connected to the third and second power-taking parts, and the other end of the button power-taking spring forms the first power-taking part.

[0010] In the aforementioned RCCB type leakage current protection device power taking mechanism, the test resistor and the second terminal block are electrically connected to each other via a resistor power taking spring.

[0011] In the aforementioned RCCB type leakage current protection device power-taking mechanism, the test resistor is fixedly connected inside the leakage current protection device. One end of the test resistor extends to one side of the button spring and forms a fourth power-taking part, and the other end of the test resistor extends to one side of the resistor power-taking spring and forms a fifth power-taking part.

[0012] In the aforementioned RCCB type leakage current protection device power taking mechanism, the resistor power taking spring is rotatably connected inside the leakage current protection device, one end of the resistor power taking spring is in contact with the fifth power receiving part, and the other end of the resistor power taking spring is in contact with the second terminal block.

[0013] In the aforementioned RCCB type leakage current protection device power supply mechanism, one end of the button spring extends to the outside of the fourth power contact part and is in contact with the fourth power contact part.

[0014] Compared with the prior art, this utility model has the following characteristics:

[0015] (1) By limiting the structure of the power taking structure, this utility model makes the moving contact and the stationary contact separate when the leakage current protection device is in the open state, and the power taking mechanism does not have the function of power-on testing. However, when the leakage current protection device is in the closed state, the operator can press the test button to make the test part and the first power receiving part contact each other, thereby making the first terminal block, the second terminal block and the test resistor connected in sequence and forming a standard residual operating current, thus realizing its testing function.

[0016] (2) By using springs instead of the existing flexible copper wires to achieve electrical connection between the first terminal block, the second terminal block and the test resistor, on the one hand, the position of each connector in the leakage current protection device can be kept fixed, and on the other hand, the mutual pressing of adjacent springs can achieve the power supply function. That is, while ensuring the stability of the power connection, the manufacturer does not need to weld the power taking mechanism, thereby effectively reducing the installation difficulty of the power taking mechanism.

[0017] Therefore, this utility model can effectively reduce the difficulty of installing and wiring the power supply mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 yes Figure 1 A magnified view from direction A;

[0020] Figure 3 yes Figure 1 A magnified view from direction B;

[0021] Figure 4 This is an exploded view of this utility model.

[0022] The markings in the attached diagram are as follows: 1-First terminal block, 2-Second terminal block, 3-Stationary contact, 4-Moving contact, 5-Contact spring, 6-Button power-taking spring, 7-Button spring, 8-Test resistor, 9-Test button, 10-Rotating plate, 11-Rotating shaft, 12-Resistor power-taking spring, 501-Second power-taking part, 601-First power-taking part, 602-Third power-taking part, 701-Test part, 801-Fourth power-taking part, 802-Fifth power-taking part. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0024] Example. The power supply mechanism for the RCCB type residual current device is configured as follows: Figure 1As shown, the device includes a first terminal block 1 and a second terminal block 2 respectively disposed inside the residual current device (RCD). The first terminal block 1 and the second terminal block 2 are the L-pole terminal block and the N-pole terminal block, respectively, and are located at the left and right ends of the RCD. A stationary contact 3 is connected to the outside of the first terminal block 1. A moving contact 4 is provided on one side of the stationary contact 3. A button spring 6 is electrically connected to the outside of the moving contact 4 via a contact spring 5. A first contact part 601 is provided on the button spring 6. A button spring 7 is rotatably connected to the housing of the RCD above the first contact part 601. One end of the button spring 7 is connected to the second terminal block 2 via a test resistor 8. The other end of the button spring 7 forms a test part 701. A test button 9 is slidably connected to the housing of the RCD above the test part 701. The test button 9 is used to drive the test part 701 to fit together with the first contact part 601 after being pressed.

[0025] It also includes an actuator, which has a rotating plate 10 inside. The moving contact 4 and the contact spring 5 are both connected to the rotating plate 10. The rotating plate 10 rotates with the opening and closing action of the actuator and realizes the mutual contact or separation of the moving contact 4 and the stationary contact 3. One end of the contact spring 5 is electrically connected to the moving contact 4, and the other end of the contact spring 5 extends to the outside of the rotating plate 10 and is in contact with the button power spring 6.

[0026] The rotating plate 10 is rotatably connected to the leakage current protector via the rotating shaft 11. The contact spring 5 is sleeved on the outside of the rotating shaft 11. One end of the contact spring 5 is in contact with the moving contact 4, and the other end of the contact spring 5 extends to the outside of the rotating plate 10 and forms the second contact part 501.

[0027] The button power spring 6 is fastened and connected inside the leakage current protector. One end of the button power spring 6 is attached to the third power contact part 602 and the second power contact part 501, and the other end of the button power spring 6 forms the first power contact part 601.

[0028] The test resistor 8 and the second terminal block 2 are electrically connected to each other via the resistor power-taking spring 12.

[0029] The test resistor 8 is snapped into the leakage current protector. One end of the test resistor 8 extends to one side of the button spring 7 and forms a fourth contact part 801. The other end of the test resistor 8 extends to one side of the resistor power spring 12 and forms a fifth contact part 802.

[0030] The resistor-driven power spring 12 is rotatably connected inside the leakage current protector. One end of the resistor-driven power spring 12 is in contact with the fifth electrical connection part 802 to form an electrical connection, and the other end of the resistor-driven power spring 12 is in contact with the second terminal block 2 to form an electrical connection.

[0031] One end of the button spring 7 extends to the outside of the fourth electrical contact part 801 and is in contact with the fourth electrical contact part 801 to form an electrical connection.

[0032] When the residual current device (RCD) is in the closed state, the contact spring 5, the button power-taking spring 6, and the resistor power-taking spring 12 are all in a compressed state, thereby ensuring the stability of the power supply of each contacting energized part.

[0033] The working principle of this utility model is as follows: By defining the structure of the power-taking mechanism, this utility model allows the contact spring 5, button power-taking spring 6, button spring 7, test resistor 8, and resistor power-taking spring 12 used for power taking to be snapped into the leakage current device (RCD). Compared with existing copper wire connections, this method ensures that the positions of each connector remain fixed, eliminating the need for assembly personnel to insert copper wires into the corners of the RCD. Furthermore, it eliminates the need for assembly personnel to solder the power-taking mechanism during wiring, thus reducing the wiring difficulty for manufacturers and improving wiring efficiency. Simultaneously, the spring-based power-taking method utilizes the pressure of the springs after contraction to improve the connection stability at each joint, thereby ensuring the effectiveness of the power-taking mechanism.

[0034] When the residual current device (RCD) is in the open state, the stationary contact 3 and the moving contact 4 are separated, and the power-taking mechanism is not energized. When the RCD is in the closed state, the first terminal block 1, the stationary contact 3, the moving contact 4, the contact spring 5, and the button power-taking spring 6 are connected in sequence, and the first energizing part 601 of the button power-taking spring 6 and the test part 701 of the button spring 7 are arranged vertically and separated from each other; at this time, the operator presses the test button 9 to make the two come into contact with each other and energize them. The test resistor 8 and the second terminal block 2 are then connected to the first terminal block 1 to form a load circuit, forming a residual operating current that meets IEC61008, realizing the button test function of the RCD.

Claims

1. A power-taking mechanism for an RCCB type residual current device, comprising a first terminal block (1) and a second terminal block (2) respectively disposed within the residual current device, wherein a stationary contact (3) is externally connected to the first terminal block (1), and a moving contact (4) is provided on one side of the stationary contact (3), characterized in that: The movable contact (4) is electrically connected to a button power spring (6) via a contact spring (5). The button power spring (6) has a first power receiving part (601). A button spring (7) is provided above the first power receiving part (601). One end of the button spring (7) is connected to the second terminal block (2) via a test resistor (8). The other end of the button spring (7) forms a test part (701). A test button (9) is provided above the test part (701). The test button (9) is used to drive the test part (701) and the first power receiving part (601) to fit together after being pressed.

2. The power-taking mechanism for an RCCB type residual current device according to claim 1, characterized in that: It also includes an actuator, which has a rotating plate (10) inside. The moving contact (4) and the contact spring (5) are both connected to the rotating plate (10). One end of the contact spring (5) is electrically connected to the moving contact (4), and the other end of the contact spring (5) extends to the outside of the rotating plate (10) and is in contact with the button power spring (6).

3. The power supply mechanism for an RCCB type residual current device according to claim 2, characterized in that: The rotating plate (10) is rotatably connected to the leakage current protector via the rotating shaft (11). The contact spring (5) is sleeved on the outside of the rotating shaft (11). One end of the contact spring (5) is in contact with the moving contact (4), and the other end of the contact spring (5) extends to the outside of the rotating plate (10) and forms the second contact part (501).

4. The power-taking mechanism for an RCCB type residual current device according to claim 3, characterized in that: The button power spring (6) is fixedly connected inside the leakage current protector. One end of the button power spring (6) is attached to the third power contact part (602) and the second power contact part (501), and the other end of the button power spring (6) forms the first power contact part (601).

5. The power supply mechanism for an RCCB type residual current device according to claim 1, characterized in that: The test resistor (8) and the second terminal block (2) are electrically connected to each other via a resistor-driven spring (12).

6. The power supply mechanism for an RCCB type residual current device according to claim 5, characterized in that: The test resistor (8) is fixedly connected inside the leakage current protector. One end of the test resistor (8) extends to one side of the button spring (7) and forms a fourth contact part (801). The other end of the test resistor (8) extends to one side of the resistor power spring (12) and forms a fifth contact part (802).

7. The power-taking mechanism for an RCCB type residual current device according to claim 6, characterized in that: The resistor-driven power spring (12) is rotatably connected inside the leakage current protector. One end of the resistor-driven power spring (12) is in contact with the fifth electrical connection part (802), and the other end of the resistor-driven power spring (12) is in contact with the second terminal block (2).

8. The power supply mechanism for an RCCB type residual current device according to claim 6, characterized in that: One end of the button spring (7) extends to the outside of the fourth contact part (801) and is in contact with the fourth contact part (801).

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