CN213816649U

CN213816649U - Power strip

Info

Publication number: CN213816649U
Application number: CN202022870339.0U
Authority: CN
Inventors: 黄兹彪
Original assignee: Shenzhen Soka Technology Co ltd
Current assignee: Shenzhen Soka Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-07-27
Anticipated expiration: 2030-12-04

Abstract

The utility model relates to a power strip, include: the device comprises a base, a power line connected with the base, a load assembly installed on the base and connected with the power line, and a monitoring assembly installed on the base. The load assembly has a plurality of slots for receiving the power supplies. The monitoring assembly includes: the overload alarm circuit comprises a Hall detection circuit connected with the load assembly, a central processing circuit connected with the Hall detection circuit, a power display circuit connected with the central processing circuit, and an overload alarm circuit connected with the central processing circuit. Above-mentioned power row inserts, realizes the real-time power monitoring to load component for the user can observe the load condition that power row inserted directly perceivedly, and whether the consumer of being convenient for differentiates whether can insert more with electrical apparatus to power row insert, and has the overload suggestion, reaches the purpose that improves the power consumption security.

Description

Power strip

Technical Field

The utility model relates to an electrical equipment technical field especially relates to a power strip.

Background

Along with the popularization of household appliances in the daily life of residents, the utilization rate of power extension socket is increased day by day, and the safety of the power extension socket arouses the attention of people day by day while bringing convenience to people.

The power strip usually has rated load power, and long-time operation exceeding the rated power can cause wires in the power strip to be easily scorched and yellow, and even cause short circuit of lines to cause fire. The user generally does not know how much power load is connected to the socket, and whether the power of the socket exceeds the rated load power. Therefore, the user is difficult to find the overload problem in the process of using the power strip, and a large potential safety hazard is formed.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model provides a power row inserts realizes the real-time power control to load assembly for the user can observe the load condition that the power row inserted directly perceivedly, and whether the consumer of being convenient for differentiates whether can insert more insert and insert to insert with electrical apparatus to the power row, and has the suggestion of transshipping, reaches the purpose that improves the power consumption security.

A power strip, comprising:

a base;

a power line connected to the base;

the load assembly is arranged on the base and connected with a power line; the load assembly is provided with a plurality of slots for inserting the power supplies; and

a monitoring assembly mounted on the base; the monitoring assembly includes: the overload alarm circuit comprises a Hall detection circuit connected with a load assembly, a central processing circuit connected with the Hall detection circuit, a power display circuit connected with a central processing unit and an overload alarm circuit connected with the central processing circuit; the Hall detection circuit is used for detecting the load current of the load assembly and outputting feedback voltage to the central processing circuit according to the load current, the central processing circuit calculates the current load power of the load assembly according to the feedback voltage and controls the power display circuit and the overload alarm circuit to work according to the current load power, the power display circuit is used for displaying the current load power, and the overload alarm circuit is used for sending out an alarm signal when the current load power exceeds the rated maximum load power.

The power supply extension socket monitors the current load power of the load assembly through the monitoring assembly during working. The Hall detection circuit converts the load current of the load assembly into a voltage signal according to the Hall effect and transmits the voltage signal to the central processing circuit in the form of feedback voltage, the central processing circuit calculates the current load power of the load assembly according to the feedback circuit and controls the power display circuit and the overload alarm circuit to work according to the current load power, the power display circuit is used for displaying the current load power, and the overload alarm circuit is used for sending an alarm signal when the current load power exceeds the rated maximum load power. Through the design, the real-time power monitoring of the load assembly is realized, so that a user can visually observe the load condition of the power strip, and whether more electric appliances can be plugged into the power strip or not is judged by a consumer conveniently, and the overload prompt is provided, so that the purpose of improving the power utilization safety is achieved.

In one embodiment, the power display circuit has an LCD digital display screen or an LED digital display screen. The current load power of the load assembly can be visually displayed through the LCD digital display screen or the LED digital display screen, and the LED digital display screen has the advantages of low cost and simple structure.

In one embodiment, the power display circuit has a plurality of first indicator lights; the power display circuit lights a corresponding number of first indicator lights according to the ratio of the current load power to the rated maximum load power. The user can be according to the quantity of the first pilot lamp of lighting in order to observe the condition of current load power directly perceivedly, and the intuition is strong, simple structure moreover.

In one embodiment, each first indicator light flashes when the current load power exceeds the rated maximum load. When the current load power exceeds the rated maximum load, the first indicator lamp intuitively prompts that the user enters the overload state in a flickering mode, the structure is simple, and the prompt is obvious.

In one embodiment, the overload warning circuit has a buzzer; when the current load power exceeds the rated maximum load, the buzzer sounds an alarm. When the current load power exceeds the rated maximum load, the user is intuitively prompted to enter an overload state through an alarm sound, the structure is simple, and the prompt is obvious.

In one embodiment, the overload warning circuit has a second indicator light; the second indicator light is illuminated or flashed when the current load power exceeds the rated maximum load. When the current load power exceeds the rated maximum load, the second indicator lamp intuitively prompts that the user enters the overload state in a flickering mode, the structure is simple, and the prompt is obvious.

In one embodiment, the monitoring assembly further comprises: and the direct current power supply circuit is respectively connected with the Hall detection circuit, the central processing circuit, the power display circuit and the overload alarm circuit. And the direct current power supply circuit converts alternating current in the power grid into direct current to provide working voltage for each functional circuit module.

In one embodiment, the monitoring assembly further comprises: an overload short-circuit protection circuit connected to the load assembly; the overload short-circuit protection circuit is used for disconnecting the power supply of the load component when the overload or short circuit occurs to the load component. When overload or short circuit occurs, the power supply of the load assembly is cut off through the overload short-circuit protection circuit, and the overload short-circuit protection function is achieved.

In one embodiment, the overload short-circuit protection circuit is connected with the central processing circuit and is provided with an on-off switch; when the current load power exceeds the safe load power, the on-off switch enters an off state; the safe load power is not less than the rated maximum load power. When the current load power reaches the safe load power, the on-off switch enters an off state to cut off the power supply of the load assembly, so that the protection effect is achieved.

In one embodiment, the overload short-circuit protection circuit has a current fuse; the current fuse blows to disconnect the power supply to the load assembly when an overload or a short circuit occurs to the load assembly. When the power strip is overloaded or short-circuited, the current fuse is fused due to overlarge load current, so that the power supply of the load component is disconnected, and the protection effect is achieved.

Drawings

Fig. 1 is a schematic diagram of a power strip according to an embodiment of the present invention;

FIG. 2 is a partial view of the power strip shown in FIG. 1;

fig. 3 is a schematic circuit diagram of the power strip shown in fig. 1.

The meaning of the reference symbols in the drawings is:

100-power strip;

10-a base;

20-a power line;

30-load component, 31-slot, 32-sub-switch;

40-a monitoring component, 41-a Hall detection circuit, 42-a central processing circuit, 43-a power display circuit, 431-an LCD digital display screen, 432-a first indicator light, 44-an overload alarm circuit, 441-a buzzer, 45-a direct current supply circuit, 46-an overload short-circuit protection circuit and 461-a current fuse.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 3, a power strip 100 according to an embodiment of the present invention is provided.

As shown in fig. 1 to 3, the power strip 100 includes: the base 10, the power cord 20 connected to the base 10, the load assembly 30 mounted on the base 10 and connected to the power cord 20, and the monitoring assembly 40 mounted on the base 10.

As shown in fig. 1, in the present embodiment, the base 10 is a strip structure, and is made of insulating plastic material or insulating ceramic material.

As shown in fig. 1, one end of the power cord 20 extends from the outside to the inside of the base 10, and the other end of the power cord 20 is provided with a plug for plugging a power grid.

As shown in fig. 1, in the present embodiment, the load module 30 has six sockets 31 for receiving connectors. Six slots 31 are provided at intervals along the length direction of the base 10. In this embodiment, each slot 31 is distributed in a triangular vacancy, and a sub-switch 32 for controlling whether the slot 31 is turned on or off is provided at each slot 31.

Referring to fig. 3, in the present embodiment, the monitoring assembly 40 includes: a hall detection circuit 41 connected with the load assembly 30, a central processing circuit 42 connected with the hall detection circuit 41, a power display circuit 43 connected with the central processing unit, and an overload alarm circuit 44 connected with the central processing circuit 42. The hall detection circuit 41 is used for detecting the load current of the load component 30 and outputting a feedback voltage to the central processing circuit 42 according to the magnitude of the load current, the central processing circuit 42 calculates the current load power of the load component 30 according to the magnitude of the feedback voltage and controls the power display circuit 43 and the overload alarm circuit 44 to work according to the current load power, the power display circuit 43 is used for displaying the current load power, and the overload alarm circuit 44 is used for sending an alarm signal when the current load power exceeds the rated maximum load power.

It should be noted that, in the present embodiment, the functional circuits of the monitoring assembly 40 are integrated on a control circuit board and are disposed on the base 10.

In addition, in this embodiment, the hall detection circuit 41 and the central processing circuit 42 may be implemented by directly purchasing off-the-shelf devices and modules, or may be configured according to the conventional design concept in the field, and will not be described in detail herein.

For example, as shown in fig. 2, in the present embodiment, the power display circuit 43 has an LCD digital display 431 (liquid crystal digital display), and the current load power of the load assembly 30 can be visually displayed through the LCD digital display 431, and the present embodiment has low cost and simple structure. In other embodiments, the LCD digital display 431 may be replaced by an LED digital display. Further, in other embodiments, the LCD digital display 431 may be replaced by a touch screen, which has a disadvantage of higher cost.

For example, as shown in fig. 2, in the present embodiment, the power display circuit 43 also shows another arrangement. The power display circuit 43 has four first indicator lights 432. The power display circuit 43 lights a corresponding number of first indicator lights 432 according to the ratio of the current load power to the rated maximum load power. The user can intuitively observe the current load power according to the number of the lighted first indicator lights 432, and the LED lamp has strong intuition and simple structure. For example, in the present embodiment, each time the first indicator light 432 is turned on, the current load power is reflected to be increased by 25% of the rated load power. When all of the four first indicator lights 432 are lit, it is reflected that the current load power has reached 100% of the rated load power.

Further, in this embodiment, each first indicator light 432 flashes when the current load power exceeds the rated maximum load. When the current load power exceeds the rated maximum load, the first indicator lamp 432 intuitively prompts that the user enters the overload state in a flickering mode, the structure is simple, and the prompt is obvious.

In the present embodiment, the prompt mode of the overload warning circuit 44 may be a sound prompt, a light prompt, or a sound and light mixed prompt.

For example, as shown in fig. 3, in the present embodiment, the overload warning circuit 44 has a buzzer 441. The buzzer 441 sounds an alarm when the current load power exceeds the rated maximum load. When the current load power exceeds the rated maximum load, the user is intuitively prompted to enter an overload state through an alarm sound, the structure is simple, and the prompt is obvious.

In other embodiments, the overload warning circuit 44 can have a second indicator light. The second indicator light is illuminated or flashed when the current load power exceeds the rated maximum load. When the current load power exceeds the rated maximum load, the second indicator lamp intuitively prompts that the user enters the overload state in a flickering mode, the structure is simple, and the prompt is obvious.

In addition, considering that the operating voltage of each functional circuit in the monitoring component 40 is a dc voltage smaller than the grid voltage, as shown in fig. 3, in this embodiment, the monitoring component 40 may further include: and a DC power supply circuit 45 respectively connected with the Hall detection circuit 41, the central processing circuit 42, the power display circuit 43 and the overload alarm circuit 44. The dc power supply circuit 45 converts the ac power in the power grid into dc power to provide operating voltage for each functional circuit module. For example, in the present embodiment, when the power line 20 is connected to an ac power grid of 120V-240V and 50Hz/60Hz, the dc power supply circuit 45 converts the ac power grid into dc 5V to supply to each functional module. In other embodiments, the dc power supply circuit 45 may be provided in each of the functional circuits or may be shared by the functional circuits.

As shown in fig. 3, in the present embodiment, the monitoring component 40 may further include: an overload short circuit protection circuit 46 of the load assembly 30 is connected. The overload short circuit protection circuit 46 is used to disconnect the power supply to the load assembly 30 when an overload or short circuit occurs to the load assembly 30. When an overload or short circuit occurs, the power supply to the load assembly 30 is disconnected by the overload short circuit protection circuit 46, which functions as overload short circuit protection.

For example, as shown in fig. 2, in the present embodiment, the overload short-circuit protection circuit 46 has a current fuse 461. The current fuse 461 is located at one side of the base 10. The current fuse 461 blows to disconnect the power supply of the load assembly 30 when the load assembly 30 is overloaded or short-circuited. When the power strip 100 is overloaded or short-circuited, the current fuse 461 blows due to the excessive load current, so as to disconnect the power supply of the load component 30, thereby performing a protection function.

In other embodiments, the overload circuit can be designed otherwise, for example, the overload short-circuit protection circuit 46 is connected to the central processing circuit 42 and has an on-off switch. When the current load power exceeds the safe load power, the on-off switch enters an off state. The safe load power is not less than the rated maximum load power. When the current load power reaches the safe load power, the on-off switch enters the off state to disconnect the power supply of the load component 30, and the protection effect is achieved.

As shown in fig. 3, in operation, the current load power of the load component 30 is monitored by the monitoring component 40. The hall detection circuit 41 converts the load current of the load assembly 30 into a voltage signal according to the hall effect and transmits the voltage signal to the central processing circuit 42 in the form of feedback voltage, the central processing circuit 42 calculates the current load power of the load assembly 30 according to the feedback circuit and controls the power display circuit 43 and the overload alarm circuit 44 to work according to the current load power, the power display circuit 43 is used for displaying the current load power, and the overload alarm circuit 44 is used for sending an alarm signal when the current load power exceeds the rated maximum load power.

It should be noted that, in the present embodiment, the power consumption of the monitoring component 40 is almost negligible compared to that of the load component 30, and therefore, the current detected by the monitoring component 40 through the hall detection circuit 41 can be regarded as the load current of the load component 30.

The power strip 100 realizes real-time power monitoring of the load assembly 30, so that a user can visually observe the load condition of the power strip 100, a consumer can conveniently judge whether more electrical appliances can be plugged into the power strip 100, and an overload prompt is provided, thereby achieving the purpose of improving the power utilization safety.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A power strip, comprising:

a base;

a power cord connected to the base;

the load assembly is arranged on the base and connected with the power line; the load assembly is provided with a plurality of slots for inserting the power supplies; and

a monitoring assembly mounted on the base; the monitoring assembly includes: the load component comprises a Hall detection circuit connected with the load component, a central processing circuit connected with the Hall detection circuit, a power display circuit connected with the central processing circuit, and an overload alarm circuit connected with the central processing circuit; the Hall detection circuit is used for detecting the load current of the load assembly and outputting feedback voltage to the central processing circuit according to the load current, the central processing circuit calculates the current load power of the load assembly according to the feedback voltage and controls the power display circuit and the overload alarm circuit to work according to the current load power, the power display circuit is used for displaying the current load power, and the overload alarm circuit is used for sending out an alarm signal when the current load power exceeds the rated maximum load power.

2. The power strip of claim 1, wherein the power display circuit has an LCD digital display screen or an LED digital display screen.

3. The power strip of claim 1, wherein the power display circuit has a plurality of first indicator lights; the power display circuit lights a corresponding number of first indicator lamps according to the ratio of the current load power to the rated maximum load power.

4. The power strip of claim 3, wherein each of said first indicator lights flashes when the current load power exceeds the rated maximum load.

5. The power strip of claim 1, wherein the overload warning circuit has a buzzer; and when the current load power exceeds the rated maximum load, the buzzer sounds an alarm.

6. The power strip of claim 1, wherein the overload warning circuit has a second indicator light; when the current load power exceeds the rated maximum load, the second indicator light is lighted or flickers.

7. The power strip of claim 1, wherein the monitoring assembly further comprises: and the direct current power supply circuit is respectively connected with the Hall detection circuit, the central processing circuit, the power display circuit and the overload alarm circuit.

8. The power strip of claim 1, wherein the monitoring assembly further comprises: an overload short-circuit protection circuit connected to the load assembly; the overload short-circuit protection circuit is used for disconnecting the power supply of the load component when the overload or short circuit occurs to the load component.

9. The power strip of claim 8, wherein said overload short circuit protection circuit is connected to said central processing circuit and has an on-off switch; when the current load power exceeds the safe load power, the on-off switch enters an off state; the safe load power is not less than the rated maximum load power.

10. The power strip of claim 8, wherein the overload short-circuit protection circuit has a current fuse; the current fuse blows to disconnect the power supply of the load component when the load component is overloaded or short-circuited.