CN204559099U - Air purifier and the power-off protection apparatus for air purifier - Google Patents

Abstract

The utility model discloses an air purifier and a power-off protection device for the air purifier. The power-off protection device comprises: a power supply circuit; a contact switch assembly, and the contact switch assembly is arranged on the air purifier In the base of the device, the contact switch assembly includes a switch, an elastic member and a push rod, the switch is connected in the power supply circuit, the elastic member is arranged between the switch and the push rod, the The push rod is suitable for stopping against the ground and closing the power supply circuit through the switch when the push rod is against the ground, and disconnecting the power supply circuit through the switch after the push rod is separated from the ground. The power supply circuit is described above, so that the power-off protection function is realized when the air purifier is moved, which protects the safety of users and the air purifier itself, and improves the use safety of the air purifier.

Description

Air purifier and power-off protection device for air purifier

technical field

The utility model relates to the technical field of electrical appliances, in particular to a power-off protection device for an air purifier and an air purifier with the power-off protection device.

Background technique

The relevant air purifier can still work normally when moving, but because the fan in the air purifier is in a high-speed working state, the center of gravity of the wind wheel, motor and other electrical components is constantly changing during the moving process, which may cause the electrical components in the air purifier to be damaged. damage, which poses a hazard to consumer safety.

Therefore, there is a need for improvement in the related art.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent. For this reason, an object of this utility model is to propose a kind of power-off protection device for air purifier, and this power-off protection device can realize power-off protection function when moving air purifier, improves the use safety of air purifier .

Another purpose of the utility model is to provide an air purifier.

According to one aspect of the utility model, the power-off protection device for an air purifier includes: a power supply circuit; a contact switch assembly, the contact switch assembly is arranged in the base of the air purifier, and the contact The switch assembly includes a switch, an elastic member and a push rod, the switch is connected in the power supply circuit, the elastic member is arranged between the switch and the push rod, and the push rod is suitable for stopping on the ground And when the push rod stops against the ground, the power supply circuit is closed by the switch, and the power supply circuit is disconnected by the switch after the push rod is separated from the ground.

According to the power-off protection device for air purifiers proposed by the utility model, the switch is connected in the power supply circuit, and the elastic member is arranged between the switch and the push rod, and the push rod is suitable for stopping on the ground and pushing When the rod reaches the ground, the power supply circuit is closed through the switch, and the power supply circuit is disconnected through the switch after the push rod is separated from the ground, so that the power-off protection function is realized when the air purifier is moved, which plays a role in user safety and the air purifier itself. Protective effect, improve the use safety of the air purifier.

Specifically, the push rod abuts against the ground through the through hole on the base.

Specifically, after the push rod is separated from the ground, the push rod can extend out of the plane of the base through the through hole.

Preferably, the elastic member can be a telescopic spring.

Preferably, the contact switch assembly can be arranged directly below the handle of the air cleaner.

In order to achieve the above purpose, the utility model also proposes an air purifier, including the power-off protection device for the air purifier.

According to the air purifier proposed by the utility model, the power-off protection function is realized when the air purifier is moved through the power-off protection device, which protects the safety of users and the air purifier itself, and improves the safety of the air purifier.

Description of drawings

Fig. 1 is a schematic diagram of connection of a power-off protection device of an air purifier according to an embodiment of the present invention;

2 is a schematic diagram of an electric shock switch assembly in a power-off protection device for an air purifier according to an embodiment of the present invention, wherein the push rod stops against the ground; and

Fig. 3 is a schematic diagram of an electric contact switch assembly in a power-off protection device for an air purifier according to an embodiment of the present invention, wherein the push rod is separated from the ground.

Reference signs:

Power supply circuit 10 , contact switch assembly 20 , fan 30 , electric control assembly 40 , live wire L, neutral wire N, switch K1 , elastic member 201 and push rod 202 .

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The power-off protection device for an air purifier proposed by the embodiment of the present invention and the air purifier with the device will be described below with reference to the accompanying drawings.

As shown in FIGS. 1-3 , the power-off protection device for an air purifier according to an embodiment of the present invention includes: a power supply circuit 10 and a contact switch assembly 20 .

Wherein, as shown in FIG. 1 , the power supply circuit 10 may be a circuit in which an AC power supply supplies power to the fan 30 of the air purifier. The fan 30 has a first terminal and a second terminal. The first terminal of the fan 30 is connected to the live wire L of the AC power supply through the electric control assembly 40 of the air cleaner, and the second terminal of the fan 30 is connected to the live wire L of the AC power supply through the electric control assembly 40. The neutral line N of the AC power supply is connected.

The contact switch assembly 20 is arranged in the base of the air cleaner. The contact switch assembly 20 includes a switch K1, an elastic member 201 and a push rod 202. The switch K1 is connected to the power supply circuit 10, and the elastic member 201 is arranged between the switch K1 and the push rod. Between 202, the push rod 202 is adapted to stop on the ground and close the power supply circuit 10 through the switch K1 when the push rod 202 stops on the ground, and disconnect the power supply circuit 10 through the switch K1 after the push rod 202 is separated from the ground.

That is to say, after the push rod 202 is resisted by the ground, the push rod 202 is stressed, and the elastic member 201 is compressed, thereby pushing the switch K1 to close, the power supply circuit 10 is conducted, and the air purifier works normally; After separation, the push rod 202 has no force, and the elastic member 201 rebounds, so that the switch K1 is turned off, the power supply circuit 10 is disconnected, and the air cleaner stops working due to power failure.

It should be noted that the switch K1 is in an off state when no external force acts. For example, the switch K1 may also include an elastic element. When an external force acts on the switch K1, the switch K1 is closed, and the elastic element is compressed; when the external force is removed, the elastic element rebounds, so that the switch K1 is turned off.

More specifically, as shown in FIG. 1 , the first contact a of the switch K1 is connected to the live line L of the AC power supply, and the second contact b of the switch K1 is connected to the first terminal of the fan 30 through the electric control assembly 40 .

And, as shown in Figures 1-3, the first end of the elastic member 201 is connected with the blade c of the switch K1, the second end of the elastic member 201 is connected with the push rod 202, the elastic member 201 can be compressed and pushed when compressed The blade c of the switch K1 contacts the first contact a and the second contact b of the switch K1 to close the switch K1.

Specifically, during the normal working process of the air purifier, if the air purifier is pushed down or moved, the push rod 202 has no external force, the elastic member 201 rebounds, and the blade c of the switch K1 is in contact with the first contact due to no external force. Point a and/or the second contact b are disconnected, switch K1 is disconnected so that the power supply circuit 10 is disconnected, the air purifier is powered off, and the fan 30 stops running, thereby better protecting the user's safety; if the air purifier is placed on a plane , the plane can withstand the push rod 202, the elastic member 201 is compressed, the blade c of the switch K1 is pressed by the elastic member 201 and then contacts the first contact a and the second contact b, and the switch K1 is closed so that the power supply circuit 10 is turned on , the air purifier is powered on, and the fan 30 operates normally.

Therefore, the power-off protection device for the air purifier according to the embodiment of the utility model closes the power supply circuit through the switch when the push rod stops against the ground, and disconnects the power supply circuit through the switch after the push rod is separated from the ground, thereby, When the air purifier is moved, the power-off protection function is realized, which protects the safety of the user and the air purifier itself, and improves the safety of the air purifier.

According to an embodiment of the present invention, the push rod 202 stops against the ground through the through hole on the base. Moreover, after the push rod 202 is separated from the ground, the push rod 202 can extend out of the plane of the base through the through hole. That is to say, the push rod 202 has no force, and the push rod 202 will extend out of the base step of the air purifier, that is, the push rod 202 can be slightly higher than the base step, so that when the air purifier is placed on a horizontal plane, the push rod 202 can is pushed up by the plane.

According to a specific example of the present invention, the elastic member 201 can be a telescopic spring.

According to a specific embodiment of the present invention, the contact switch assembly 20 is arranged directly below the handle of the air purifier. That is to say, the push rod 202 can be arranged directly below the handle of the air purifier. When the user pulls the handle, the push rod 202 can extend out of the plane of the base through the through hole, and the switch K1 is turned off, thereby turning off the air purifier. electricity.

Therefore, when the user pulls the handle to move the air purifier, the power supply circuit can be disconnected first, so as to ensure the safety of the user and the air purifier.

In summary, according to the power-off protection device for air purifier proposed by the embodiment of the present invention, the switch is connected in the power supply circuit, and the elastic member is arranged between the switch and the push rod, and the push rod is suitable for stopping When the push rod touches the ground, the power supply circuit is closed by the switch, and the power supply circuit is disconnected by the switch after the push rod is separated from the ground, so that the power-off protection function is realized when the air purifier is moved, which is safe for users And the air purifier itself plays a protective role, improving the use safety of the air purifier.

In addition, the utility model also proposes an air purifier, including the power-off protection device for the air purifier of the above embodiment.

According to the air purifier proposed by the embodiment of the utility model, the power-off protection device realizes the power-off protection function when the air purifier is moved, which protects the safety of the user and the air purifier itself, and improves the safety of the air purifier .

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; may be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediary, and may be an internal communication between two elements or an interactive relationship between two elements, unless otherwise stated Clearly defined. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first feature and the second feature through an intermediary indirect contact. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (6)

1. A power-off protection device for an air cleaner, characterized in that it comprises: power supply circuits; and A contact switch assembly, the contact switch assembly is arranged in the base of the air cleaner, the contact switch assembly includes a switch, an elastic member and a push rod, the switch is connected in the power supply circuit, the The elastic member is arranged between the switch and the push rod, and the push rod is suitable for stopping against the ground and closing the power supply circuit through the switch when the push rod stops against the ground, and After the push rod is separated from the ground, the power supply circuit is disconnected through the switch. 2 . The power-off protection device for an air purifier according to claim 1 , wherein the push rod stops against the ground through a through hole in the base. 3 . 3. The power-off protection device for an air purifier according to claim 2, characterized in that, after the push rod is separated from the ground, the push rod can extend out of the said through hole. The plane of the base. 4. The power-off protection device for an air purifier according to any one of claims 1-3, wherein the elastic member is a telescopic spring. 5 . The power-off protection device for an air purifier according to claim 1 , wherein the contact switch assembly is arranged directly below the handle of the air purifier. 6 . 6. An air purifier, characterized in that it comprises the power-off protection device for the air purifier according to any one of claims 1-5.