TWM470444U - UPS capable of insulating power source circuit - Google Patents

Description

Uninterruptible power supply that isolates the power circuit

The present invention is an uninterruptible power supply, especially an uninterruptible power supply that isolates a power supply circuit.

At present, there is an uninterruptible power supply (UPS) connected to electrical appliances, which is mainly used for equipment that can supply power urgently during a power outage. Some UPSs also have functions to prevent power anomalies or anti-noise. In turn, electronic equipment is maintained, especially precision instruments pay more attention to power quality, but in general, UPS is not mainly equipped for users unless the user has high demand for power quality.

The Taiwan Power Company issued a press release titled "Taiwan's 101-year Shareholders' Meeting", which stated that the average power outage time per household in each science park in 1999 was 1.2 minutes (about 72 seconds); the above performance is an excellent standard. In particular, this user group belongs to densely populated households, electronics, semiconductors, telecommunications, optoelectronics and other manufacturing industries. If there is a power outage, the loss is difficult to estimate; it is reported to be Samsung's Samsung panel department in 2012. On the evening of June 14th, about 11 minutes due to power jump, even Samsung's SCP glass factory and Samsung Action Display (SMD) AMOLED, which is a joint venture between Samsung and Corning, were affected. According to Yonhap News, even The blackout period was very short and the power supply was quickly resumed, but the production line was still seriously affected. The power outage was estimated, Samsung Electronics (Samsung) The loss is probably as high as tens of billions of won.

In addition to the aforementioned international production lines, in fact, there is a demand for UPS for general users. Currently, a UPS with a replaceable battery is commonly used. The circuit design is usually designed to design the battery-side circuit as an isolated circuit. Isolating the power from the appliance to avoid the risk of high voltage shock when replacing the battery; however, the UPS of such a replaceable battery needs to increase the isolated power, isolation optocoupler, and isolation between the primary and secondary lines. The detection of the line, etc., the component cost and the need for the internal use space of the UPS increase correspondingly, and has many disadvantages such as complicated lines, many isolation components, high UPS cost, and large use area of the UPS internal circuit board.

In view of the above-mentioned shortcomings of the prior art, the main object of the present invention is to provide an uninterruptible power supply capable of isolating a power supply circuit, simplifying the power isolation circuit of the electric appliance, and reducing the use of the isolation component and the cost, thereby saving the interior of the uninterruptible power supply. Space.

The main technical means for achieving the above object is that the uninterruptible power supply of the detachable power supply circuit comprises: a base, and a battery compartment is arranged on the base for accommodating a battery, and the battery compartment is provided with two electrodes. Providing electrical contact with the battery and providing a power circuit; a fixed upper cover is coupled to one end of the base; the fixed upper cover is internally provided with a circuit switch and is connected to a power circuit of the battery room, and the circuit switch is provided with a control power circuit a movable action piece; a movable upper cover detachably disposed at the other end of the base and corresponding to the battery compartment thereon; the inner end of the movable upper cover is provided with an abutting member, the abutting The position of the piece is relative to the action piece of the loop switch.

In the above-mentioned uninterruptible power supply device, when the movable upper cover is attached to the base and is connected to the fixed upper cover, the abutting member is in the state of pressing the action piece to turn on the power circuit, and when the user wants to replace the When the movable upper cover is disassembled from the battery of the power supply, the movable upper cover is separated from the fixed upper cover, and the abutting member no longer presses the action piece to completely disconnect the uninterruptible power supply circuit, thereby simplifying and reducing the use. The isolation components and cost, and save space inside the uninterruptible power supply.

10‧‧‧Base

20‧‧‧Fixed cover

21‧‧‧Circuit switch

211‧‧‧ Action Movies

22‧‧‧ circuit board

221‧‧‧First power contact

222‧‧‧second power contact

23‧‧‧Microcontroller

24‧‧‧ Relay

25‧‧‧Switch circuit

30‧‧‧ movable cover

31‧‧‧After the top piece

32‧‧‧Fixed tablets

40‧‧‧Power cable

50‧‧‧Battery

60‧‧‧Power control circuit

1 is a schematic view showing the appearance of a preferred embodiment of the present invention.

Figure 2 is an exploded state view of a preferred embodiment of the present invention.

Figure 3 is a schematic diagram of the first application mode of the present invention.

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

FIG. 5 is a schematic diagram of another circuit of the second application mode of the present invention.

With respect to the uninterruptible power supply of the isolated power supply circuit of a preferred embodiment of the present invention, please refer to FIG. 1 , which is an appearance of an uninterruptible power supply, and the uninterruptible power supply includes a base 10 , A fixed upper cover 20 and a movable upper cover 30 that can be connected and detached. In the preferred embodiment, a power supply 50 is disposed in the power supply, and the power supply connection line 40 is connected to the external power supply connection line 40. One end is connected to the electrical device, and the other end is connected to the uninterruptible power supply; the base 10 is provided with a battery compartment for accommodating the battery 50, and the battery compartment is provided with two electrodes for electrically contacting the battery 50. Provide a power circuit.

Referring to FIG. 2, the main structure of the fixed upper cover 20 and the movable upper cover 30 of the present type of uninterruptible power supply is provided; wherein the fixed upper cover 20 is coupled to one end of the base 10; the fixed upper cover 20 is internally provided a loop switch 21 is connected to the power circuit of the battery compartment. The loop switch 21 is provided with an action piece 211 for controlling the power circuit to be turned on and off. In the preferred embodiment, the fixed upper cover 20 is further provided. The circuit board 22 is provided with a first power contact 221 and a second power contact 222. The circuit switch 21 is disposed on the circuit board 22; the first power contact 221 is connected to the power source. One end of the wire 40 is electrically connected, and the second power contact 222 is electrically connected to the loop switch 21.

The movable upper cover 30 is detachably disposed at the other end of the base 10 and corresponding to the battery compartment thereon; the inner end of the movable upper cover 30 is provided with an abutting member 31, and the position of the abutting member 31 is relative to the loop switch The action piece 211; when the two covers are connected, the abutting member 31 touches the action piece 211, and the circuit switch 21 is in an open state, so that the uninterruptible power supply works normally; in the preferred embodiment, the movable upper cover 30 The inner end of the fixed upper cover 20 further forms an opening at a position corresponding to the corresponding circuit switch 21; And a fixing groove corresponding to the rectangular fixing piece 32 is formed on the left and right sides of the opening; as can be seen from the foregoing, when the movable upper cover 30 is mounted on the base 10, the abutting member 31 and each fixing piece 32 are respectively inserted. When the opening of the upper cover 20 and the fixing groove are fixed, the two covers are made more stable when connected.

As shown in FIG. 1 and FIG. 2, in the preferred embodiment, when the fixed upper cover 20 is connected to the movable upper cover 30, the abutting member 31 maintains the state of the pressing action piece 211, and the fixing cover 32 is simultaneously inserted and fixed by the fixing pieces 32. Each of the fixing slots is fixed. When the user replaces the battery 50 of the uninterruptible power supply, and the movable upper cover 30 is detached, the abutting member 31 is no longer pressed against the action piece 211, and each fixing piece 32 is simultaneously When the fixing grooves are disengaged, the circuit switch 21 is thus switched to the open state.

The loop switch 21 of the aforementioned uninterruptible power supply will further cooperate with the power supply control circuit provided on the circuit substrate 22 to completely isolate the electrical side when the battery is replaced.

A first possible embodiment of the foregoing isolation protection circuit is shown in FIG. 3. The circuit substrate 22 is provided with a power supply control circuit 60 connected to a power supply. The circuit switch 21 is connected to the power supply circuit of the power supply control circuit 60 and the battery room. 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 an output terminal connected to the loop switch 21, the output terminal is connected to the voltage input end of the voltage regulator U1; the electronic switch Q1 is obtained by the loop switch 21 to obtain a 12V DC power supply, and is on the output end. Supply 12V DC power supply, and the regulator U1 regulates the 12V DC power supply and supplies 5V DC power at its voltage output terminal, thereby supplying DC power of different voltages; therefore, when replacing the battery, the movable cover 30 is removed from the base 10 such that the abutting member 31 no longer presses the action piece 211, and when the circuit switch 21 is simultaneously switched to the open circuit, the circuit switch 21 disconnects the battery compartment from the power supply control circuit 60. Power circuit BAT-V, achieve closure Output and disconnect INPUT RELAY to safely isolate the power circuit.

As shown in FIG. 4 and FIG. 5, the circuit board 22 is provided with a microcontroller 23, a relay 24 and a switch circuit 25; the switch circuit is provided. 25 has a control terminal and an input terminal. The relay 24 is composed of a normally closed switch and an excitation coil connected to the mains. The excitation coil is connected to an input positive power source 12V and an input end of the switch circuit 25. For controlling the switching state thereof, the microcontroller 23 has a plurality of pins, wherein one pin D-SWITCH is electrically connected to the loop switch 21, and the other pin INPUT-RLY is connected to the switch circuit 25. The control circuit; the circuit switch 21 is connected to a +5V DC power supply. When the movable upper cover 30 is closed on the base 10, the circuit switch 21 is closed, and the pin 23 of the microcontroller 23 is provided D-SWITCH-5V. Positive voltage, in this state, the pin INPUT-RLY of the microcontroller 23 does not output the signal driving switch circuit 25, so the normally closed switch of the relay 24 remains closed; and after the battery is replaced and the movable upper cover 30 is removed, the circuit switch 21 turns to open, The pin D-SWITCH potential of the microcontroller 23 is changed, the microcontroller 23 is driven by another pin INPUT-RLY to drive the switch circuit 25, the relay 24 is switched to an open circuit, and the microcontroller 23 issues another A signal is used to turn off the output, so as to achieve the purpose of safely isolating the power circuit.

In the above manner, the power circuit of the uninterruptible power supply is completely disconnected, thereby achieving the purpose of isolating the battery from the electrical appliance, reducing the use of the isolation components and cost.

The above description is only a preferred embodiment of the present invention, and it is not The present invention is to be limited in any form, and any one of ordinary skill in the art may, if not departing from the scope of the technical features of the present invention, the equivalent implementation of the local modification or modification made by the disclosed technology. For example, they are still within the scope of the novel technical features.

20‧‧‧Fixed cover

21‧‧‧Circuit switch

211‧‧‧ Action Movies

22‧‧‧ circuit board

221‧‧‧First power contact

222‧‧‧second power contact

30‧‧‧ movable cover

31‧‧‧After the top piece

32‧‧‧Fixed tablets

40‧‧‧Power cable

Claims (8)

An uninterruptible power supply capable of isolating a power supply circuit, comprising: a base having a battery compartment for accommodating a battery, wherein the battery compartment is provided with two electrodes for electrically contacting the battery and providing a power circuit a fixed upper cover is coupled to one end of the base; the fixed upper cover is internally provided with a circuit switch and is connected to a power circuit of the battery room, the circuit switch is provided with an action piece for controlling the power circuit to be turned on and off; and a movable upper cover Removably disposed at the other end of the base and corresponding to the battery compartment thereon; the inner end of the movable upper cover is provided with an abutting member, the abutting member being located relative to the action piece of the circuit switch. The uninterruptible power supply for the isolated power circuit of claim 1, wherein the fixed upper cover is connected with a power connection line having two ends, one end for connecting with the electrical appliance, and the other end and the uninterruptible power supply connection. The uninterruptible power supply of the isolated power supply circuit of claim 2, wherein the fixed upper cover is further provided with a circuit substrate, wherein the circuit substrate is provided with a first power contact and a second power contact; The open relationship is disposed on the circuit substrate; the first power contact is electrically connected to one end of the power connection line, and the second power contact is electrically connected to the loop switch. The uninterruptible power supply of the isolated power supply circuit of claim 3, wherein the inner end of the fixed upper cover further forms an opening at a position corresponding to the circuit switch. The uninterruptible power supply of the detachable power supply circuit of claim 4, wherein the left and right sides of the inner end of the movable upper cover further form a rectangular fixing piece having an area smaller than the abutting member; Upper cover The left and right sides of the opening respectively form a fixing groove corresponding to the rectangular fixing piece. An uninterruptible power supply capable of isolating a power supply circuit as claimed in claim 5, wherein the circuit substrate is provided with a power supply control circuit connected to the power supply, and the open circuit relationship is connected between the power supply control circuit and the power supply circuit of the battery room. An uninterruptible power supply capable of isolating a power supply circuit according to claim 6, wherein the power control circuit is mainly composed of an electronic switch and a voltage regulator, the voltage regulator having a voltage input end and a voltage output end; The electronic switch has an input end and an output end, and the input end is connected to the aforementioned loop switch, and the output end is connected to the voltage input end of the voltage regulator. The uninterruptible power supply of the isolated power circuit of claim 5, wherein the circuit substrate is provided with a microcontroller, a relay and a switch circuit; the switch circuit has a control end and an input end, the relay system Composed of a normally closed switch and an excitation coil connected to the mains, the excitation coil is connected between an input positive power source and an input end of the switch circuit for controlling a switch state thereof; the microcontroller has a plurality of A pin, wherein one pin is electrically connected to the loop switch, and the other pin is connected to the control end of the switch circuit.