CN203166613U - Uninterruptible power supply with isolated power loop - Google Patents

Abstract

The utility model provides an uninterruptible power supply capable of isolating a power supply loop, which is mainly characterized in that a base is provided with a battery chamber, a fixed upper cover and a movable upper cover, and the battery chamber is used for accommodating a battery; the fixed upper cover is combined at one end of the base, and the movable upper cover is arranged at the other end of the base and corresponds to the battery chamber on the base; a loop switch is arranged in the fixed upper cover and is connected with a power supply loop of the battery chamber, and the loop switch is provided with an action sheet for controlling the on-off of the loop; the inner end of the movable upper cover is provided with a propping piece, and when the movable upper cover covers the base, the propping piece is an action piece for triggering the loop switch to switch on the power supply loop; when the movable upper cover is disassembled to replace the battery, the loop is completely disconnected; therefore, the used isolation elements and cost are effectively reduced, and the space in the uninterruptible power supply is saved.

Description

Uninterruptible power supply with isolated power loop

technical field

The utility model relates to an uninterrupted power supply device, in particular to an uninterrupted power supply device capable of isolating a power circuit.

Background technique

At present, there is an uninterruptible power supply (Uninterruptible Power Supply, UPS) connected to electrical appliances on the market. It is mainly used for emergency power supply equipment during power outages. Some UPSs also have the function of preventing power abnormalities or anti-noise, and then Maintaining electronic equipment, especially precision instruments, pays more attention to power quality, but generally speaking, UPS is not the main equipment for users, unless users have higher requirements for power quality.

According to reports, South Korea's Samsung Electronics (Samsung) panel department shut down for about 11 minutes due to a power outage on the evening of June 14, 2012. ) AMOLED is also affected. According to Yonhap News, even though the power outage was very short and the power supply began to resume quickly, the production line was still seriously affected. It is estimated that the loss of Samsung Electronics (Samsung Electronics) may reach tens of billions. won.

In addition to the above-mentioned production lines of major international manufacturers, in fact, general users also have needs for UPS. At present, UPS with replaceable batteries is generally used, and the circuit design is usually to design the circuit on the battery side as an isolated circuit. Effectively isolate the power from electrical appliances, so as to avoid the danger of high-voltage electric shock to the user when replacing the battery; Detection lines, etc., the cost of components and the demand for space inside the UPS increase accordingly, and there are many disadvantages such as complex circuits, many isolation components, high cost of UPS, and large area of circuit boards inside the UPS.

Utility model content

The main purpose of the utility model is to provide an uninterruptible power supply capable of isolating a power circuit, simplify the power isolation circuit of its electrical appliances, reduce the use of isolation components and costs, and save the space inside the uninterruptible power supply.

In order to achieve the above purpose, the utility model provides an uninterruptible power supply that can isolate the power circuit, including:

A base, on which is provided a battery chamber for accommodating the battery, and the battery chamber is provided with two electrodes for electrical contact with the battery and providing a power circuit;

A fixed upper cover, combined with one end of the base; a circuit switch is arranged inside the fixed upper cover, and is connected to the power circuit of the battery room, and the circuit switch is provided with an action piece for controlling the power circuit on and off;

A movable upper cover is detachably arranged on the other end of the base and corresponds to the battery chamber on it; the inner end of the movable upper cover is provided with a propping piece, and the position of the abutting piece is relative to the action of the circuit switch piece.

Wherein, the fixed upper cover is connected with a power connection line, and the power connection line has two ends, one end is connected with an electrical appliance, and the other end is connected with an uninterruptible power supply.

Wherein, the inside of the fixed upper cover is further provided with a circuit substrate, and the circuit substrate is provided with a first power contact and a second power contact; the circuit switch is arranged on the circuit substrate; Electrically connected, the second power contact is electrically connected to the loop switch.

Wherein, the inner end of the fixed upper cover further has an opening at a position corresponding to the circuit switch.

Wherein, the left and right sides of the abutting piece at the inner side of the movable upper cover further respectively form a rectangular fixed piece whose area is smaller than that of the abutting piece; the left and right sides of the opening of the fixed upper cover respectively form a corresponding rectangle. Fixing slot for the fixing piece.

Wherein, the circuit substrate is provided with a power control circuit connected to the power supply, and the circuit switch is connected between the power control circuit and the power circuit of the battery room.

Wherein, the power supply control circuit is mainly composed of an electronic switch and a voltage stabilizer, the voltage stabilizer has a voltage input terminal and a voltage output terminal; the electronic switch has an input terminal and an output terminal, and the input terminal and the aforementioned The loop switch is connected, and the output terminal is connected with the voltage input terminal of the regulator.

Wherein, the circuit substrate is provided with a microcontroller, a relay and a switch circuit; the switch circuit has a control terminal and an input terminal, and the relay is composed of a normally closed switch connected to the mains and an excitation coil , the excitation coil is connected between an input positive power supply and the input terminal of the switch circuit, and is used to control the switch state of the switch circuit; the microcontroller has a plurality of pins, one of which is electrically connected to the loop switch, and the other One pin is connected to the control end of the switch circuit.

In the above-mentioned uninterruptible power supply, when the movable upper cover is closed on the base and connected with the fixed upper cover, the abutting member is in the state of pressing the action piece to connect the power circuit. When the user disassembles the movable upper cover to replace the battery of the uninterruptible power supply, the movable upper cover is separated from the fixed upper cover, and the abutting piece no longer presses the action piece to completely disconnect the uninterruptible power supply circuit , this structure will effectively simplify and reduce the used isolation components and cost, and save the space inside the uninterruptible power supply.

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the utility model.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of a preferred embodiment of the present invention.

Fig. 2 is an exploded state diagram of a preferred embodiment of the present invention.

Fig. 3 is a circuit diagram of the first application mode of the utility model.

Fig. 4 is a circuit diagram of the second application mode of the present invention.

Fig. 5 is another circuit diagram of the second application mode of the present invention.

Among them, reference signs:

10 Base 20 Fixed cover

21 Loop switch 211 Action film

22 Circuit board 221 First power contact

222 Second power contact 23 Microcontroller (MCU)

24 relay 25 switch circuit

30 Movable upper cover 31 Resisting piece

32 Rectangular fixing piece 40 Power cable

50 battery 60 power control circuit

Q1 electronic switch U1 voltage regulator

Detailed ways

In the following, in conjunction with the drawings and preferred embodiments of the utility model, the technical means adopted by the utility model to achieve the intended purpose of the utility model are further described.

Regarding the uninterruptible power supply of a preferred embodiment of the present invention, which can isolate the power circuit, please refer to FIG. 1, which includes a base 10, a fixed upper cover 20 and a movable upper cover that can be connected and detached. 30. In this preferred embodiment, a battery 50 is installed inside the power supply, and a power connection line 40 is connected to the outside of the fixed upper cover 20. The power connection line 40 has two ends, one end is used to connect with electrical appliances, and the other end It is connected with the uninterruptible power supply; the base 10 is provided with a battery chamber for accommodating the battery 50, and the battery chamber is provided with two electrodes for electrical contact with the battery 50 and providing a power circuit.

Please refer to Fig. 2, which discloses the main structure inside the fixed upper cover 20 and the movable upper cover 30; the fixed upper cover 20 is combined with one end of the base 10; the fixed upper cover 20 is provided with a circuit switch 21 inside, and the circuit The switch 21 is connected to the power circuit of the battery room, and the circuit switch 21 is provided with an action piece 211 for controlling the on-off of the aforementioned power circuit; 22 is provided with a first power contact 221 and a second power contact 222; the loop switch 21 is located on the circuit substrate 22; the first power contact 221 is electrically connected to one end of the power connection line 40, and the second power contact 222 is electrically connected to the circuit switch 21 .

The movable upper cover 30 is detachably arranged on the other end of the base 10 and corresponds to the battery chamber thereon; the inner end of the movable upper cover 30 is provided with a propping member 31, and the position of the abutting member 31 is opposite to The action piece 211 of the circuit switch; when the movable upper cover 30 is connected with the fixed upper cover 20, its abutting piece 31 touches the action piece 211, and the circuit switch 21 is turned on at this time, so that the uninterruptible power supply can work normally ;

In this preferred embodiment, the inner side of the movable upper cover 30 further forms a rectangular fixed piece 32 with an area smaller than that of the abutting member 31 on both sides of the abutting member 31; in addition, the inner side of the fixed upper cover 20 An opening is further formed at the position corresponding to the circuit switch 21, and a fixing groove corresponding to the aforementioned rectangular fixing piece 32 is formed on both sides of the opening; When the abutting member 31 and each fixing piece 32 are respectively inserted into the opening and the fixing groove of the fixed upper cover 20, the two covers are more stable when connected.

As shown in Figures 1 and 2, in this preferred embodiment, when the fixed upper cover 20 is connected to the movable upper cover 30, the abutment member 31 is kept in the state of pressing the action piece 211, and is inserted by each fixed piece 32 at the same time. The fixed grooves of the fixed upper cover 20 are fixed. When the user wants to replace the battery 50 of the uninterruptible power supply and disassemble the movable upper cover 30, the abutment member 31 will no longer press the action piece 211, and the fixed pieces 32 is also disengaged from each fixing groove simultaneously, and this loop switch 21 is therefore switched to an open circuit state.

The loop switch 21 of the aforementioned uninterruptible power supply will further cooperate with the power control circuit provided on the circuit board 22 so as to completely isolate the electrical side when replacing the battery.

The first feasible embodiment of the aforementioned isolation protection circuit is as shown in FIG. 3 , the circuit substrate 22 is provided with a power control circuit 60 connected to the power supply, and the circuit switch 21 is connected to the power control circuit 60 and the power circuit of the battery room. Between BAT-V; the power control circuit 60 is mainly composed of an electronic switch Q1 and a voltage regulator U1, the voltage regulator U1 has a voltage input terminal and a voltage output terminal; the electronic switch Q1 has an input terminal and a voltage regulator An output terminal, the input terminal is connected with the aforementioned loop switch 21, and the output terminal is connected with the voltage input terminal of the voltage stabilizer U1; the electronic switch Q1 obtains a 12V DC power supply through the loop switch 21, and supplies it on the output terminal 12V DC power supply, and the 12V DC power supply is stabilized by the voltage regulator U1 to supply 5V DC power supply at its voltage output terminal, thereby supplying DC power supplies of different voltages; therefore, when replacing the battery, it can be moved. The cover 30 is removed from the base 10 so that the abutting member 31 no longer presses the action piece 211, and when the circuit switch 21 is switched to an open circuit at the same time, the circuit switch 21 will disconnect the power supply from the battery chamber to the power control circuit 60 The circuit BAT-V realizes closing the output and disconnecting the INPUT RELAY, so as to achieve the purpose of safely isolating the power circuit.

Another power control circuit used in conjunction with the aforementioned loop switch 21, please refer to FIG. 4 and FIG. The switch circuit 25 has a control terminal and an input terminal. The relay 24 is composed of a normally closed switch connected to the commercial power and an excitation coil. The excitation coil is connected to an input positive power supply 12V and the switch circuit 25 between the input terminals of the micro-controller 23 to control its switching state; the microcontroller 23 has multiple pins, one pin D-SWITCH is electrically connected to the loop switch 21, and the other pin INPUT-RLY is connected to the switch The control end of the circuit 25; the loop switch 21 is connected to a +5V DC power supply, when the movable upper cover 30 is closed on the base 10, the loop switch 21 is closed, and the pin D-SWITCH of the microcontroller 23 will be provided A positive voltage of 5V, in this state, the pin INPUT-RLY of the microcontroller 23 does not output a signal to drive the switch circuit 25, so the normally closed switch of the relay 24 remains closed; and when the battery is replaced and the movable upper cover 30 After disassembly, the loop switch 21 turns into an open circuit, causing the potential of the pin D-SWITCH of the microcontroller 23 to change, and the microcontroller 23 sends a signal from another pin INPUT-RLY to drive the switch circuit 25 to switch the relay 24 It is an open circuit, and the microcontroller 23 sends another signal to close the output, so as to achieve the purpose of safely isolating the power circuit.

Through the above method, the power circuit of the uninterruptible power supply is completely disconnected, so as to achieve the purpose of isolating the battery from the electrical appliances, reducing the isolation components used and the cost.

Certainly, the utility model also can have other various embodiments, under the situation of not departing from the spirit and essence of the utility model, those skilled in the art can make various corresponding changes and distortions according to the utility model, but these Corresponding changes and deformations should all belong to the protection scope of the claims of the present invention.

Claims (8)

1. but the uninterruptable power supply in an insulating power supply loop is characterized in that, comprises:

One base has a battery chamber for set battery, is provided with two electrodes in this battery chamber, and an electric power loop is provided;

One fixed cover is combined in an end of this base; This fixed cover inside is provided with a circuit switching, and is connected with the electric power loop of battery chamber, and this circuit switching is provided with the action movie of a control electric power loop break-make; And

One movable loam cake removably is located at holding in addition and correspondence battery chamber thereon of base; The medial extremity of this movable loam cake is provided with a supporting member, and the position of this supporting member is with respect to the action movie of circuit switching.

2. but the uninterruptable power supply in insulating power supply according to claim 1 loop is characterized in that this fixed cover is connected with an electric power connection line, and this electric power connection line has two ends, and an end is connected with electrical equipment, and end is connected with uninterruptable power supply in addition.

3. but the uninterruptable power supply in insulating power supply according to claim 2 loop is characterized in that this fixed cover inside further is provided with a circuit substrate, and this circuit substrate is provided with one first power supply contact, a second source contact; This circuit switching is located on the circuit substrate; This first power supply contact is electrically connected with electric power connection line one end, and this second source contact is electrically connected with circuit switching.

4. but the uninterruptable power supply in insulating power supply according to claim 3 loop is characterized in that the medial extremity of this fixed cover further has an opening in the position of corresponding circuit switching.

5. but the uninterruptable power supply in insulating power supply according to claim 4 loop is characterized in that, the left and right sides of the supporting member of the medial extremity of this movable loam cake, and each self-forming area is less than a rectangle stator of supporting member further; The left and right sides of the opening of this fixed cover forms the holddown groove of a corresponding aforementioned rectangle stator again respectively.

6. but the uninterruptable power supply in insulating power supply according to claim 5 loop is characterized in that, this circuit substrate is provided with a power control circuit that connects power supply, and this circuit switching is to be connected between the electric power loop of power control circuit and battery chamber.

7. but the uninterruptable power supply in insulating power supply according to claim 6 loop is characterized in that this power control circuit mainly is made up of an electronic switch and a pressurizer, and this pressurizer has a voltage input end and a voltage output end; This electronic switch has an input and an output, and this input is connected with aforementioned circuit switching, and this output is connected with the voltage input end of this pressurizer.

8. but the uninterruptable power supply in insulating power supply according to claim 5 loop is characterized in that this circuit substrate is provided with a microcontroller, a relay and a switching circuit; This switching circuit has a control end and an input, this relay is made up of a normally closed switch and a magnetizing coil that is connected in civil power, this magnetizing coil is connected between the input of an input positive supply and this switching circuit, the on off state of control switch circuit; This microcontroller has a plurality of pins, and wherein a pin is electrically connected with circuit switching, and another pin is connected in the control end of this switching circuit.

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