Automatic counting device for power failure
By designing an automatic power outage counting device for power outages, the automatic counting of power outages is achieved by using an AC relay and a counter combined with a built-in battery or accumulator, the accuracy of power supply quality assessment is solved, ensuring the stable operation of the equipment and providing guidance on improvement measures.
Patent Information
- Application Number
- CN202421447675.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-30
- Filing Date
- 2024-06-24
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The prior art is difficult to accurately record and evaluate the number of power outages of power supply power supply, which affects the normal operation of equipment and equipment safety, and lacks effective guidance on improving power supply quality measures.
Design an automatic power-off counting device for power-off, using an AC relay to collect power-off signals, and realize automatic counting through a counter. Combined with the built-in battery or battery power supply, the counter is connected to the normally closed contact of the AC relay to achieve accurate recording of the number of power-offs.
It realizes automatic counting of the number of power outages of the power supply power supply, provides accurate power supply quality assessment, provides reference information for formulating improvement measures, and ensures the stable operation of the equipment.
Smart Images
Figure CN223123206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a device capable of automatically counting the power-off faults of a power supply, belonging to the technical field of power supplies. Background Art
[0002] With the progress of technology, various electrical appliances have higher and higher requirements for power quality. In some areas, the power supply is unstable, which is likely to have an adverse impact on electrical equipment. Frequent power outages will not only seriously affect the normal operation of equipment, but also cause damage to some equipment (such as equipment that requires soft start). Recording and counting the number of power outages of the power supply within a certain period to accurately evaluate the power supply stability has guiding significance for reasonably formulating power quality improvement measures. Therefore, it is very necessary to design a power-off automatic counting device for the power supply. Content of the Utility Model
[0003] The purpose of the utility model is to provide a power-off automatic counting device for the power supply aiming at the drawbacks of the prior art, so as to accurately evaluate the power supply quality and provide reference information for reasonably formulating power quality improvement measures.
[0004] To achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A power-off automatic counting device for the power supply includes an AC relay, a storage battery and a counter. The control coil of the AC relay is connected to the power supply of the electrical equipment. The negative pole of the storage battery is connected to the negative pole of the power supply of the counter through a wire, and the positive pole of the storage battery is connected to the counting pulse input terminal of the counter through the normally closed contact of the AC relay.
[0006] The above power-off automatic counting device for the power supply further includes a switch, and the switch is connected in series with the normally closed contact of the AC relay.
[0007] For the above power-off automatic counting device for the power supply, the counter is powered by a built-in battery or a storage battery.
[0008] For the above power-off automatic counting device for the power supply, the switch is a non-self-resetting push-button switch; the counter is a power-off zeroing electronic counter; the rated working voltage of the AC relay is 220 volts.
[0009] The utility model uses an AC relay to collect the power-off signal of the power supply and transmits the power-off signal to the counting pulse input terminal of the counter, realizing the automatic counting of the power-off faults of the power supply of the electrical equipment. Using this device, the power supply quality of the power supply can be accurately evaluated, and reference information can be provided for reasonably formulating power quality improvement measures. Description of the Drawings
[0010] The following further describes the utility model in detail with reference to the drawings and specific embodiments.
[0011] Figure 1 It is a structural schematic diagram of the present utility model.
[0012] The reference numerals in the figure are as follows: FU, fuse; KA, AC relay; SB, switch; B, storage battery; T, counter; Z, grid load. Specific embodiments
[0013] In view of the problems existing in the prior art, the present utility model provides a power-off automatic counting device, which is internally provided with a storage battery and a counter, and automatically records the number of power-offs when the power supply of the device is cut off.
[0014] Refer to Figure 1 , the present utility model mainly includes an AC relay KA, a switch SB, a storage battery B, and a counter T. The AC 220V power supply of the electrical equipment (grid load Z) is connected to both ends of the control coil of the AC relay KA of the present device. The counter T is powered by an internal battery or can also be powered by the storage battery B. The negative pole of the storage battery B is connected to the negative pole of the power supply of the counter T through a wire. One end of the switch SB is connected to the positive pole of the storage battery B, and the other end is connected to the counting pulse input end of the counter T through the normally closed contact of the AC relay KA.
[0015] The usage method of the present utility model is as follows:
[0016] When the power supply of the electrical equipment is turned on and in normal use, the AC relay KA is energized and attracted, the normally closed contact of the AC relay is opened, the circuit between the storage battery B and the counter T is disconnected, the reset switch on the counter T is pressed to initialize the count value of the counter T to zero, and then the switch SB is closed, and the power-off automatic counting device enters the working state.
[0017] When a power failure occurs in the commercial power supply, the control coil of the AC relay KA loses power, and its normally closed contact closes. At this time, the circuit between the storage battery B and the counter T is conducted, the output voltage of the storage battery B is applied to the counting pulse input end of the counter T, and the count value of the counter T is incremented by one. Each time the electrical equipment is powered on and off, the count value of the counter T is incremented by one, realizing the automatic counting of the number of power-offs of the power supply of the electrical equipment.
[0018] The switch SB is a non-self-resetting push-button switch. The counter T is an electronic counter that returns to zero when powered off. The rated working voltage of the AC relay KA is 220V.
[0019] The beneficial effects of the present utility model are:
[0020] The utility model uses an AC relay to collect the power-off signal of the power supply and transmits the signal to the counting pulse input end of the counter to realize the automatic counting of the power-off times of the power supply of the electrical equipment. By using the utility model, the power-off situation of the power supply within a certain period of time can be mastered, which can not only understand the power quality of the local area, but also be used for testing the on-off life test of electrical equipment.
Claims
1. An automatic counting device for power failure, characterized in that, It includes an AC relay (KA), a storage battery (B) and a counter (T). The control coil of the AC relay (KA) is connected to the power supply of the electrical equipment. The negative pole of the storage battery (B) is connected to the negative pole of the power supply of the counter (T) through a wire, and the positive pole of the storage battery (B) is connected to the counting pulse input end of the counter (T) through the normally closed contact of the AC relay (KA).
2. The automatic counting device for power-off of a power supply according to claim 1, characterized in that, It further includes a switch (SB), and the switch (SB) is connected in series with the normally closed contact of the AC relay (KA).
3. The automatic counting device for power-off of a power supply according to claim 2, characterized in that, The counter (T) is powered by a built-in battery or the storage battery (B).
4. The automatic counting device for power-off of a power supply according to claim 3, characterized in that, The switch (SB) is a non-self-resetting push-button switch; the counter (T) is a power-off reset electronic counter; the rated working voltage of the AC relay (KA) is 220 volts.