CN211701848U - Novel combined DC direct current conversion power supply - Google Patents
Novel combined DC direct current conversion power supply Download PDFInfo
- Publication number
- CN211701848U CN211701848U CN202020539499.4U CN202020539499U CN211701848U CN 211701848 U CN211701848 U CN 211701848U CN 202020539499 U CN202020539499 U CN 202020539499U CN 211701848 U CN211701848 U CN 211701848U
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- box body
- power supply
- protector
- module
- control board
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Abstract
The utility model discloses a novel combination formula DC direct current transform power, including the power box body, the upper end of power box body is provided with the upper end cover, and the front end surface mounting of power box body has the audible-visual annunciator, the inside mounting groove that is provided with of power box body, mounting groove internally mounted have overvoltage protector, and short circuit protector is installed to one side of overvoltage protector, mounting groove internally mounted has circuit control board, installs the module on the circuit control board and detects the radiator, overvoltage protector's one end is passed through the wire and is connected with overcurrent protector, and overcurrent protector's one side is installed lightning protection module. The utility model discloses an undervoltage protection is crossed in the input and undervoltage protection is crossed in direct current output, advanced instantaneous overcurrent protection and soft turn-off technique, output short circuit current-limiting protection, overheat protection, and the reputation is reported an emergency and asked for help or increased vigilance, has effectively improved the reliability and the continuity of system.
Description
Technical Field
The utility model relates to a DC conversion power supply technical field specifically is a novel combination formula DC conversion power supply.
Background
The DC conversion power source is a DC/DC converter, which converts a fixed DC voltage into a variable DC voltage, and the technology is widely applied to the stepless speed change and control of trolleybuses, subway trains and electric vehicles, and simultaneously ensures that the control obtains the performances of stable acceleration and quick response, and simultaneously has the effect of saving electric energy. The DC chopper is used to replace a rheostat, so that electric energy can be saved. The direct current chopper not only can play a role in regulating voltage, but also can play a role in effectively inhibiting harmonic current noise on the side of a power grid. The DC/DC converter of the secondary power supply of the communication power supply is commercialized, the module adopts a high-frequency PWM technology, the switching frequency is about 500kHz, and the power density is 5W-20W/in 3. With the development of large-scale integrated circuits, power modules are required to be miniaturized, so that the switching frequency is continuously increased and new circuit topology structures are adopted, and companies develop and produce secondary power modules adopting zero-current switching and zero-voltage switching technologies at present, so that the power density is greatly increased.
The existing DC direct current conversion power supply has single structure function and poor safety protection effect, and is easy to cause the damage of a power circuit, so that a novel combined DC direct current conversion power supply is urgently needed to be developed in the market.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel combination formula DC power conversion to solve the current DC power conversion structure function singleness that provides in the above-mentioned background art, the safety protection effect is relatively poor, easily causes the problem that power supply circuit damaged.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel combination formula DC direct current transform power, includes the power box body, the upper end of power box body is provided with the upper end cover, and the front end surface mounting of power box body has the audible-visual alarm, the inside mounting groove that is provided with of power box body, mounting groove internally mounted have overvoltage protector, and short circuit protector is installed to one side of overvoltage protector, mounting groove internally mounted has circuit control board, installs the module on the circuit control board and detects the radiator, overvoltage protector's one end is passed through the wire and is connected with overcurrent protector, and overcurrent protector's one side is installed lightning protection module.
Preferably, the power supply box body is provided with a power-on connector on the side surface.
Preferably, a temperature sensor is mounted on the circuit control board.
Preferably, the module detection radiator is electrically connected with the temperature sensor.
Preferably, the circuit control panel is provided with a data acquisition switching value input port.
Preferably, the power supply box body is formed by pressing PVC anti-seismic materials.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the overvoltage protection circuit is arranged in the module, the module is automatically locked after overvoltage occurs, a corresponding module fault indicator lamp is turned on, the fault module automatically quits working without influencing the normal operation of the whole system, the overvoltage protection circuit has output current limiting protection, the output power of each module is limited, and the output current cannot be infinitely increased, so that the maximum limit of the output current of each module is the rated output current, and if overload occurs, the module automatically reduces the output voltage to protect the module;
(2) the module can work in a short circuit state for a long time without damage, and can automatically recover to work after faults are eliminated;
(3) the over-temperature protection mainly protects high-power converter devices, the junction temperature and the current overload capacity of the devices have safety limit values, enough margin is reserved in system design under normal working conditions, the device is automatically shut down and protected when the temperature of a module detected radiator exceeds 85 ℃ under some special environments, such as overhigh ambient temperature, and the device is automatically started after the temperature of the radiator is reduced;
(4) the overcurrent protection mainly protects a high-power converter, and in each period of current conversion, if the current exceeds the current borne by the converter, the power converter is closed, so that the purpose of protecting the power converter is achieved, the overcurrent protection can be automatically recovered, and the measurement function is as follows: the output voltage and current of the measuring module and the working state of the module are displayed by a screen, so that a user can intuitively and conveniently know the working state of the module and the working state of a system;
(5) the input over-voltage and under-voltage protection and the direct current output over-voltage and under-voltage protection, the advanced instantaneous over-current protection and soft turn-off technology, the output short-circuit current-limiting protection, the over-temperature protection and the acousto-optic alarm effectively improve the reliability and the continuity of the system, and enable a user to manage freely and clearly;
(6) the system has the advantages of remote monitoring signal output, capability of sending the real-time working state (direct current input, direct current output, working signal and fault signal) of the DC/DC power supply to a control center for monitoring through a switching value input port of a data acquisition system, and good monitoring and data acquisition functions.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the assembly structure of the present invention;
fig. 3 is a schematic diagram of the internal structure of the power supply box of the present invention.
In the figure: 1. an upper end cover; 2. a power supply box body; 3. an audible and visual alarm; 4. an electrical connection; 5. an overvoltage protector; 6. mounting grooves; 7. a short circuit protector; 8. the module detects the radiator; 9. a temperature sensor; 10. a data acquisition switching value input port; 11. a circuit control board; 12. a lightning protection module; 13. an overcurrent protector.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a novel combination formula DC power supply that changes, including power box body 2, the upper end of power box body 2 is provided with upper end cover 1, the front end surface mounting of power box body 2 has acousto- optic alarm 3, 2 inside mounting grooves 6 that are provided with of power box body, 6 internally mounted of mounting groove has overvoltage protector 5, short circuit protector 7 is installed to one side of overvoltage protector 5, 6 internally mounted of mounting groove has circuit control board 11, circuit control board 11 is last to install module detection radiator 8, overvoltage protector 5's one end is passed through the wire and is connected with overcurrent protector 13, lightning protection module 12 is installed to one side of overcurrent protector 13.
Further, an energizing terminal 4 is mounted on a side surface of the power supply case 2.
Further, the circuit control board 11 is mounted with a temperature sensor 9.
Further, the module detection radiator 8 is electrically connected with the temperature sensor 9.
Further, a data acquisition switching value input port 10 is arranged on the circuit control board 11.
Further, the power box body 2 is formed by pressing PVC anti-seismic materials.
The working principle is as follows: when the power supply module is used, the power supply box body 2 is internally provided with a mounting groove 6, the mounting groove 6 is internally provided with an overvoltage protector 5, the overvoltage protector 5 is arranged in the mounting groove, a module is automatically locked after overvoltage occurs, a corresponding module fault indicator lamp is on, a fault module automatically quits working without influencing the normal operation of the whole system, the power supply module has output current limiting protection, the output power of each module is limited, and the output current cannot be infinitely increased, so that the maximum limit of the output current of each module is the rated output current, if overload occurs, the module automatically reduces the output voltage to protect the module, one side of the overvoltage protector 5 is provided with a short-circuit protector 7, when short circuit is output, the module instantly reduces the output voltage to zero, the short-circuit current is limited to be below 10% of the rated output current, the output power of the module is very small at the moment, the purpose of, the module can automatically recover after the fault is eliminated, the circuit control board 11 is arranged in the mounting groove 6, the module detection radiator 8 is arranged on the circuit control board 11, the over-temperature protection mainly protects the high-power converter, the junction temperature and the current overload capacity of the devices have safe limit values, and under the normal working condition, enough margin is left in the system design, under some special environments, such as overhigh ambient temperature, when the module detects that the temperature of the radiator 8 exceeds 85 ℃, the module is automatically shut down for protection, after the temperature of the radiator is reduced, the module is automatically started, a data acquisition switching value input port 10 is arranged on a circuit control board 11, the real-time working state (direct current input, direct current output, working signal and fault signal) data acquisition switching value input port 10 of the DC/DC power supply can be sent to a control center for monitoring, and the DC/DC power supply has good monitoring and data acquisition functions.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a novel combination formula DC power supply that changes, includes power box body (2), its characterized in that, the upper end of power box body (2) is provided with upper end cover (1), and the front end surface mounting of power box body (2) has audible-visual annunciator (3), power box body (2) inside is provided with mounting groove (6), and mounting groove (6) internally mounted has overvoltage protector (5), and short-circuit protector (7) are installed to one side of overvoltage protector (5), mounting groove (6) internally mounted has circuit control board (11), installs module detection radiator (8) on circuit control board (11), the one end of overvoltage protector (5) is passed through the wire and is connected with overcurrent protector (13), and lightning protection module (12) are installed to one side of overcurrent protector (13).
2. The novel combined DC-DC conversion power supply according to claim 1, characterized in that: and an electrified joint (4) is arranged on the side surface of the power supply box body (2).
3. The novel combined DC-DC conversion power supply according to claim 1, characterized in that: and a temperature sensor (9) is arranged on the circuit control board (11).
4. The novel combined DC-DC conversion power supply according to claim 1, characterized in that: the module detection radiator (8) is electrically connected with the temperature sensor (9).
5. The novel combined DC-DC conversion power supply according to claim 1, characterized in that: and a data acquisition switching value input port (10) is arranged on the circuit control board (11).
6. The novel combined DC-DC conversion power supply according to claim 1, characterized in that: the power box body (2) is formed by pressing PVC anti-seismic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020539499.4U CN211701848U (en) | 2020-04-14 | 2020-04-14 | Novel combined DC direct current conversion power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020539499.4U CN211701848U (en) | 2020-04-14 | 2020-04-14 | Novel combined DC direct current conversion power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211701848U true CN211701848U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020539499.4U Expired - Fee Related CN211701848U (en) | 2020-04-14 | 2020-04-14 | Novel combined DC direct current conversion power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211701848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2753771C1 (en) * | 2021-03-18 | 2021-08-23 | Общество с ограниченной ответственностью "РАТЕП-ИННОВАЦИЯ" | Signal converter for electrical equipment of rail traction vehicles |
-
2020
- 2020-04-14 CN CN202020539499.4U patent/CN211701848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2753771C1 (en) * | 2021-03-18 | 2021-08-23 | Общество с ограниченной ответственностью "РАТЕП-ИННОВАЦИЯ" | Signal converter for electrical equipment of rail traction vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 Termination date: 20210414 |