CN218261422U - Power supply monitoring circuit for elevator brake release device - Google Patents
Power supply monitoring circuit for elevator brake release device Download PDFInfo
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- CN218261422U CN218261422U CN202220787282.4U CN202220787282U CN218261422U CN 218261422 U CN218261422 U CN 218261422U CN 202220787282 U CN202220787282 U CN 202220787282U CN 218261422 U CN218261422 U CN 218261422U
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Abstract
The utility model discloses a power monitoring circuit for elevator device that declutches relates to elevator device that declutches power supply technical field, mainly includes: the power supply supplies power to the elevator brake release device; the main control chip is used for acquiring a voltage signal, a positive current and a negative current of a power supply and transmitting the voltage signal, the positive current and the negative current to the background terminal through the data port; and the battery protection loop limits the charging and discharging speed of the power supply. The utility model discloses a to the real time monitoring of the power supply of the device that declutches, avoid because the rescue under the emergency that the power feed leads to delays the risk.
Description
Technical Field
The utility model relates to an elevator device power supply technical field that declutches, concretely relates to power monitoring circuit for elevator device that declutches.
Background
The mechanical action principle of the elevator brake is that a brake locks an elevator car when the elevator is abnormal. In normal operation, the brake is kept in a release state under continuous electrification, and the current of the brake is cut off. And normal operation relies on the battery power supply when the electronic trip gear of elevator cuts off the power supply, and battery or lithium cell all have the emergence of feed condition after using for a long time. When the elevator is trapped or the elevator is in an emergency, if the battery feeding condition occurs, the electric brake release device cannot be normally started, so that the rescue is delayed. Based on this, we need real-time supervision and analysis of the battery state. The problem is found before the battery can not be ensured to be normally used as far as possible, so that the battery can be ensured to normally operate when required.
SUMMERY OF THE UTILITY MODEL
In order to realize the real time monitoring to the power supply of elevator device that declutches, the utility model provides a power monitoring circuit for elevator device that declutches, include:
the power supply is used for supplying power to the elevator brake release device;
the main control chip is used for acquiring a voltage signal, a positive current and a negative current of a power supply and transmitting the voltage signal, the positive current and the negative current to the background terminal through the data port;
and the battery protection loop is used for limiting the charging and discharging speed of the power supply.
Further, when the voltage signal is smaller than the preset threshold value, the background terminal sends out an alarm signal.
Further, the chip model of the main control chip is BQ27000, and the main control chip includes a first pin to a tenth pin.
Furthermore, a sixth pin of the main control chip is a voltage signal acquisition end, an eighth pin is an anode current acquisition end, a seventh pin is a cathode current acquisition end, and a fifth pin is a data port.
Furthermore, the sixth pin is grounded through a first capacitor and connected with the anode of the power supply through a first resistor.
Furthermore, the eighth pin is grounded through a third capacitor, and is sequentially connected with the anode of the power supply through a second resistor and an eighth capacitor.
Furthermore, the fifth pin is respectively connected to one end of a seventh resistor and the cathode of the second diode through an eighth resistor, the other end of the seventh resistor is connected to the background terminal through a data line, and the anode of the second diode is grounded.
Further, the battery protection circuit includes,
a source electrode of the third field effect transistor is simultaneously connected with a negative electrode of the power supply, one end of the sixth capacitor and the positive electrode of the fourth diode; the grid electrode of the third field effect transistor is connected with the anode of a third diode together with the other end of a sixth capacitor through a third fuse and a second fuse in sequence, and a base electrode of a second triode is connected between the third fuse and the second fuse; the drain electrode of the third field effect transistor and the cathode of a fourth diode are connected with the source electrode of the fourth field effect transistor, and the cathode of the fourth diode is also connected with the anode of a fifth diode; the negative electrode of the third diode is connected with the drain electrode of the first field effect transistor; the grid electrode of the first field effect transistor is connected with the collector electrode of the second triode through a fourth fuse, and the source electrode of the first field effect transistor is connected with the drain electrode of the fourth field effect transistor through a seventh capacitor; the emitting electrode of the second triode is connected with the grid electrode of the fourth field effect transistor; the drain electrode of the fourth field effect transistor is simultaneously connected with one end of a ninth resistor and one end of a third resistor, the other end of the third resistor is simultaneously connected with one end of a second capacitor and a seventh pin of the main control chip, and the other end of the ninth resistor is connected between the fourth resistor and the eighth capacitor; the other end of the second capacitor is grounded.
Furthermore, a second pin of the main control chip is a power supply port and is connected with the anode of the power supply through a fourth resistor.
Furthermore, a fourth pin of the main control chip is a clock signal port, and is simultaneously connected with a cathode of the first diode and one end of the fifth resistor through the sixth resistor, an anode of the first diode is grounded, and the other end of the fifth resistor receives a clock signal.
Compared with the prior art, the utility model, contain following beneficial effect at least:
(1) The utility model discloses a power monitoring circuit for elevator release device, through the real-time monitoring to the power supply of the release device, avoid the rescue delay risk under the emergency state that leads to because of the power feed;
(2) Through the setting of battery protection return circuit, avoid the emergence of the power overshoot overdischarge condition, prolong power life.
Drawings
Fig. 1 is an overall construction diagram of a power monitoring circuit for an elevator brake release device;
fig. 2 is a schematic circuit diagram of a power monitoring circuit for an elevator brake release device;
fig. 3 is a circuit schematic diagram of a power supply monitoring circuit for an elevator brake release device.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example one
In order to avoid the elevator incident because the power feed of brake release device leads to, as shown in fig. 1, the utility model provides a power monitoring circuit for elevator brake release device mainly includes:
the power supply is used for supplying power to the elevator brake release device;
the main control chip is used for acquiring a voltage signal, a positive electrode current and a negative electrode current of a power supply and transmitting the voltage signal, the positive electrode current and the negative electrode current to the background terminal through the data port;
and the battery protection loop is used for limiting the charging and discharging speed of the power supply.
In order to realize the acquisition of power supply parameters such as supply voltage, electric current, as shown in fig. 2 and 3, the utility model discloses choose the chip (U1) that the model is BQ27000 for use as the main control chip of power monitoring circuit, it contains first pin to tenth pin (U1.1-U1.10). The sixth pin is a voltage signal acquisition end, the eighth pin is a positive current acquisition end, the seventh pin is a negative current acquisition end, and the fifth pin is a data port. Therefore, the acquisition of various power supply parameters and the background transmission of data are respectively met.
Specifically, the sixth pin is grounded through a first capacitor (C1) and is connected with the positive electrode (Pack +) of the power supply through a first resistor (R1); the eighth pin is grounded through a third capacitor (C3) and is sequentially connected with the anode of the power supply through a second resistor (R2) and an eighth capacitor (C8); the fifth pin is respectively connected with one end of a seventh resistor (R7) and the cathode of a second diode (D2) through an eighth resistor (R8), the other end of the seventh resistor is connected with a background terminal (HDQ/SDA) through a data line, and the anode of the second diode is grounded.
And the battery protection circuit includes a voltage regulator circuit,
a source electrode of the third field effect transistor (Q3) is simultaneously connected with a negative electrode (Pack-) of a power supply, one end of a sixth capacitor (C6) and the positive electrode of a fourth diode (D4); the grid electrode of the third field effect transistor is connected with the anode of a third diode (D3) together with the other end of a sixth capacitor through a third fuse (F3) and a second fuse (F2) in sequence, and the base electrode of a second triode (Q2) is connected between the third fuse and the second fuse; the drain electrode of the third field effect transistor and the cathode of a fourth diode are connected with the source electrode of a fourth field effect transistor (Q4), and the cathode of the fourth diode is also connected with the anode of a fifth diode (D5); the negative electrode of the third diode is connected with the drain electrode of the first field effect transistor (Q1); the grid electrode of the first field effect transistor is connected with the collector electrode of the second triode through a fourth fuse (F4), and the source electrode of the first field effect transistor is connected with the drain electrode of the fourth field effect transistor through a seventh capacitor (C7); the emitting electrode of the second triode is connected with the grid electrode of the fourth field effect transistor; the drain electrode of the fourth field effect transistor is simultaneously connected with one end of a ninth resistor (R9) and one end of a third resistor (R3), the other end of the third resistor is simultaneously connected with one end of a second capacitor (C2) and a seventh pin of the main control chip, and the other end of the ninth resistor is connected between the second resistor and the eighth capacitor; the other end of the second capacitor is grounded.
The acquisition of power supply voltage and positive and negative electrode current information can be realized through the ports, and the information is transmitted to the background terminal through the data port by the data line. The background terminal can obtain the output current and the electric quantity information of the power supply in the current running state according to the parameters, and further more stably control charging and discharging of the power supply by controlling corresponding supporting facilities. When the voltage signal of the power supply is smaller than a preset threshold value (set), the background terminal can send an alarm signal so that operation and maintenance personnel can charge the power supply or perform fault maintenance in time. Meanwhile, when the power supply is charged, if the charging and discharging control facility breaks down, and the power supply overshoots, the power supply current is too large, and at the moment, the fuse in the battery protection loop is fused, so that the charging of the power supply is blocked, the overshoot condition of the power supply is avoided, and the service life of the power supply is prolonged.
Furthermore, a second pin of the main control chip is a power supply port, and is connected with the anode of the power supply through a fourth resistor (R4) to supply power to the main control chip; the fourth pin is a clock signal port and is simultaneously connected with the cathode of the first diode (D1) and one end of a fifth resistor (R5) through a sixth resistor (R6), the anode of the first diode is grounded, and the other end of the fifth resistor receives a clock signal and provides the clock signal for the main control chip; the first pin is grounded through a fourth capacitor (C4), and the third pin is grounded.
To sum up, a power monitoring circuit for elevator device that declutches, through the real time monitoring to declutch device power supply, avoid because the rescue under the emergency that the power feed leads to delays the risk. Through the setting of battery protection return circuit, avoid the emergence of the power overshoot overdischarge condition, prolong power life.
It should be noted that all the directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions in the present application as to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a 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 explicitly defined otherwise.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or 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 addition, the technical solutions of the embodiments of the present invention can be combined with each other, but it is necessary to use a person skilled in the art to realize the basis, and when the technical solutions are combined and contradictory to each other or cannot be realized, the combination of the technical solutions should not exist, and is not within the protection scope of the present invention.
Claims (10)
1. A power monitoring circuit for an elevator trip gear, comprising:
the power supply is used for supplying power to the elevator brake release device;
the main control chip is used for acquiring a voltage signal, a positive current and a negative current of a power supply and transmitting the voltage signal, the positive current and the negative current to the background terminal through the data port;
and the battery protection loop is used for limiting the charging and discharging speed of the power supply.
2. The power supply monitoring circuit for the brake release device of the elevator as claimed in claim 1, wherein the background terminal sends out an alarm signal when the voltage signal is less than a preset threshold value.
3. The power supply monitoring circuit for the elevator brake release device as claimed in claim 1, wherein the main control chip has a chip model number BQ27000 and comprises a first pin to a tenth pin.
4. The power monitoring circuit for the brake release device of the elevator according to claim 3, wherein the sixth pin of the main control chip is a voltage signal collecting terminal, the eighth pin is a positive current collecting terminal, the seventh pin is a negative current collecting terminal, and the fifth pin is a data port.
5. The power monitoring circuit for an elevator brake release device according to claim 4, wherein the sixth pin is grounded through a first capacitor and connected to the positive pole of the power supply through a first resistor.
6. The power supply monitoring circuit for the brake release device of the elevator as set forth in claim 4, wherein the eighth pin is grounded through a third capacitor and is sequentially connected to the positive electrode of the power supply through a second resistor and an eighth capacitor.
7. The power supply monitoring circuit for the brake release device of the elevator as claimed in claim 4, wherein the fifth pin is connected to one end of a seventh resistor and the cathode of a second diode through an eighth resistor, respectively, the other end of the seventh resistor is connected to the background terminal through a data line, and the anode of the second diode is grounded.
8. The power monitoring circuit for an elevator brake release device of claim 4, wherein the battery protection circuit comprises,
a source electrode of the third field effect transistor is simultaneously connected with a negative electrode of the power supply, one end of the sixth capacitor and the positive electrode of the fourth diode; a grid electrode of the third field effect transistor and the other end of the sixth capacitor are connected with the anode of a third diode through a third fuse and a second fuse in sequence, and a base electrode of a second triode is connected between the third fuse and the second fuse; the drain electrode of the third field effect transistor and the cathode of a fourth diode are connected with the source electrode of the fourth field effect transistor, and the cathode of the fourth diode is also connected with the anode of a fifth diode; the negative electrode of the third diode is connected with the drain electrode of the first field effect transistor; the grid electrode of the first field effect transistor is connected with the collector electrode of the second triode through a fourth fuse, and the source electrode of the first field effect transistor is connected with the drain electrode of the fourth field effect transistor through a seventh capacitor; the emitting electrode of the second triode is connected with the grid electrode of the fourth field effect transistor; the drain electrode of the fourth field effect transistor is simultaneously connected with one end of a ninth resistor and one end of a third resistor, the other end of the third resistor is simultaneously connected with one end of a second capacitor and a seventh pin of the main control chip, and the other end of the ninth resistor is connected between the fourth resistor and the eighth capacitor; the other end of the second capacitor is grounded.
9. The power supply monitoring circuit for the elevator brake release device as claimed in claim 3, wherein the second pin of the main control chip is a power supply port connected to the positive electrode of the power supply through a fourth resistor.
10. The power supply monitoring circuit for the elevator brake release device as claimed in claim 3, wherein the fourth pin of the main control chip is a clock signal port, and the cathode of the first diode and one end of the fifth resistor are connected simultaneously through a sixth resistor, the anode of the first diode is grounded, and the other end of the fifth resistor receives the clock signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220787282.4U CN218261422U (en) | 2022-04-07 | 2022-04-07 | Power supply monitoring circuit for elevator brake release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220787282.4U CN218261422U (en) | 2022-04-07 | 2022-04-07 | Power supply monitoring circuit for elevator brake release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218261422U true CN218261422U (en) | 2023-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220787282.4U Active CN218261422U (en) | 2022-04-07 | 2022-04-07 | Power supply monitoring circuit for elevator brake release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218261422U (en) |
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2022
- 2022-04-07 CN CN202220787282.4U patent/CN218261422U/en active Active
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