Self-resetting voltage and current protector with extension attachment

Abstract

The utility model discloses a self -recovery voltage current protector with expansion annex relates to voltage current protector technical field. Including protector body, the side part detachable of protector body is connected with expansion annex, the one side of expansion annex is equipped with a plurality of joint pieces to protector body, is equipped with the joint hole of cooperation with joint piece on protector body. The utility model discloses through the setting expansion annex of detachable, equivalent to the space of protector body has been added, thereby can increase setting wiring port or wiring terminal, need not extra increase a voltage current protector, has saved the cost.

Description

Technical Field

[0001] This utility model relates to the field of voltage and current protection technology, specifically to a self-resetting voltage and current protection device with extended accessories. Background Technology

[0002] Self-resetting voltage and current protectors are also commonly known as self-resetting over / under voltage protectors, over / under voltage protectors, automatic reset over / under voltage protectors, etc. Their core function is to provide protection in the event of overvoltage or undervoltage. When an abnormal voltage occurs, the protector can react quickly to ensure system safety.

[0003] When overvoltage or undervoltage in the circuit exceeds the preset range, the self-resetting overvoltage and undervoltage protector can automatically cut off the power supply and monitor the line voltage in real time. Once the line voltage returns to the normal level, the protector will automatically re-close. This type of protector is particularly suitable for users or loads with a single-phase AC voltage of 220V, a frequency of 50Hz, and a rated operating current of 60A or less. It can effectively prevent overvoltage and undervoltage in single-phase lines caused by neutral line faults, thereby protecting single-phase electrical equipment. Self-resetting overvoltage and undervoltage protectors are commonly used in residential distribution boxes or distribution lines that require protection of single-phase electrical equipment. They are important protective devices for overvoltage, undervoltage, phase loss, and neutral line breakage in household and commercial power distribution lines (single-phase AC230V, three-phase four-wire AC415V).

[0004] However, existing self-resetting voltage and current protectors are usually standard parts with fixed wiring ports and internal space. When more wiring ports and internal space are needed, multiple voltage and current protectors are usually installed side by side. However, for some specific situations, such as when only one wiring port needs to be expanded, it is too wasteful to directly add a voltage and current protector and increase the cost of use. Or, when an additional wiring terminal is needed to connect to smart devices in the home, the internal space of a single voltage and current protector is not enough. Utility Model Content

[0005] The main purpose of this utility model is to provide a self-resetting voltage and current protector with extended accessories to overcome the problems existing in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A self-resetting voltage and current protector with an extension attachment includes a protector body, an extension attachment detachably connected to the side of the protector body, a plurality of snap-fit ​​parts on the side of the extension attachment near the protector body, and snap-fit ​​holes on the protector body that mate with the snap-fit ​​parts.

[0008] Furthermore, the snap-fit ​​component includes a vertical portion extending outwardly from the side of the extension attachment and a hook portion connected to the vertical portion.

[0009] Furthermore, the hook portion passes through the snap-fit ​​hole and abuts against the side wall of the protector body.

[0010] Furthermore, the protector body includes a base and a top cover, the top cover being snapped onto the top of the base, and both the base and the top cover are provided with snap-fit ​​holes.

[0011] Furthermore, there are three snap-fit ​​components. The two lower snap-fit ​​components are connected to snap-fit ​​holes on the base, and the upper snap-fit ​​component is connected to snap-fit ​​holes on the top cover.

[0012] Furthermore, the middle part of the top cover extends upward to form a protrusion, and the protrusion is provided with display screen mounting holes and function button mounting holes.

[0013] Furthermore, the top of the cover is provided with wiring ports located on both sides of the protrusion.

[0014] Furthermore, terminal covers are snapped onto the upper parts of both ends of the top cover, and the terminal covers are provided with through holes corresponding to the wiring ports.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The detachable expansion accessories effectively increase the space of the protector body, allowing for the addition of wiring ports or terminals without the need for an additional voltage and current protector, thus saving costs. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle.

[0019] Figure 3 This is a three-dimensional structural diagram of the present invention from the bottom view.

[0020] Figure 4 This is a structural schematic diagram of the extended attachment of this utility model.

[0021] Figure 5 This is a side view of the extended attachment of this utility model.

[0022] Figure 6 This is a schematic diagram of the structure of the protector body of this utility model.

[0023] Figure 7This is a top view of the present invention.

[0024] Figure 8 This utility model Figure 7 Sectional view at point AA.

[0025] Explanation of reference numerals in the attached drawings: 1-protector body, 11-snap hole, 12-base, 13-top cover, 131-wiring port, 2-extension accessory, 21-snap piece, 211-vertical part, 212-hook part, 3-terminal cover. Detailed Implementation

[0026] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0027] Combination Figure 1-8 This embodiment provides a self-resetting voltage and current protector with an extension attachment, including a protector body 1. An extension attachment 2 is detachably connected to the side of the protector body 1. The extension attachment 2 has multiple snap-fit ​​pieces 21 on the side near the protector body 1. The protector body 1 has snap-fit ​​holes 11 that cooperate with the snap-fit ​​pieces 21.

[0028] In this embodiment, the snap-fit ​​component 21 includes a vertical portion 211 extending outward from the side of the extension attachment 2 and a hook portion 212 connected to the vertical portion 211. The hook portion 212 passes through the snap-fit ​​hole 11 and abuts against the side wall of the protector body 1.

[0029] In this embodiment, the protector body 1 includes a base 12 and a top cover 13. The top cover 13 is snapped onto the top of the base 12, and both the base 12 and the top cover 13 are provided with snap-fit ​​holes 11.

[0030] In this embodiment, the middle portion of the upper cover 13 extends upward to form a protrusion, on which are provided display screen mounting holes and function button mounting holes. Wiring ports 131 are located on both sides of the protrusion at the top of the upper cover 13. Terminal covers 3 are snapped onto the upper parts of both ends of the upper cover 13. Figure 2 The terminal cover 3 is hidden in the middle of the film, so that the wiring port 131 can be seen. The terminal cover 3 is provided with a through hole corresponding to the wiring port 131.

[0031] Preferably, there are three snap-fit ​​pieces 21. The two snap-fit ​​pieces 21 at the bottom are connected to the snap-fit ​​holes 11 on the base 12, and the one snap-fit ​​piece 21 at the top is connected to the snap-fit ​​hole 11 on the top cover 13.

[0032] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A self-resetting voltage and current protector with extended accessories, characterized in that, Includes a protector body (1), and an extension attachment (2) is detachably connected to the side of the protector body (1). The extension attachment (2) has multiple snap-fit ​​pieces (21) on the side near the protector body (1), and the protector body (1) has snap-fit ​​holes (11) that cooperate with the snap-fit ​​pieces (21).

2. A self-resetting voltage and current protector with extended accessories as described in claim 1, characterized in that, The snap-fit ​​component (21) includes a vertical portion (211) extending vertically outward from the side of the extension attachment (2) and a hook portion (212) connected to the vertical portion (211).

3. A self-resetting voltage and current protector with extended accessories as described in claim 2, characterized in that, The hook portion (212) passes through the snap hole (11) and abuts against the side wall of the protector body (1).

4. A self-resetting voltage and current protector with extended accessories as described in claim 2, characterized in that, The protector body (1) includes a base (12) and a top cover (13). The top cover (13) is snapped onto the top of the base (12). Both the base (12) and the top cover (13) are provided with snap-fit ​​holes (11).

5. A self-resetting voltage and current protector with extended accessories as described in claim 4, characterized in that, There are three snap-fit ​​pieces (21). The two snap-fit ​​pieces (21) at the bottom are connected to the snap-fit ​​holes (11) on the base (12), and the one snap-fit ​​piece (21) at the top is connected to the snap-fit ​​hole (11) on the top cover (13).

6. A self-resetting voltage and current protector with an extension accessory as described in claim 4, characterized in that, The middle part of the upper cover (13) extends upward to form a protrusion, and the protrusion is provided with a display screen mounting hole and a function button mounting hole.

7. A self-resetting voltage and current protector with extended accessories as described in claim 6, characterized in that, The top of the cover (13) is provided with wiring ports (131) located on both sides of the protrusion.

8. A self-resetting voltage and current protector with extended accessories as described in claim 7, characterized in that, Terminal covers (3) are snapped onto the upper parts of both ends of the top cover (13), and the terminal covers (3) are provided with through holes corresponding to the wiring ports (131).

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