CN216391860U - Cooling device and DC-DC converter cooling system - Google Patents
Cooling device and DC-DC converter cooling system Download PDFInfo
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- CN216391860U CN216391860U CN202122327398.8U CN202122327398U CN216391860U CN 216391860 U CN216391860 U CN 216391860U CN 202122327398 U CN202122327398 U CN 202122327398U CN 216391860 U CN216391860 U CN 216391860U
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Abstract
The utility model discloses a cooling device for a DC-DC converter, the DC-DC converter is provided with a cooling channel, the cooling device comprises: the cooling assembly comprises a cooling pipeline, an inlet of the cooling pipeline is communicated with an outlet of the cooling channel, an outlet of the cooling pipeline is communicated with an inlet of the cooling channel, and the cooling pipeline and the cooling channel form a circulation loop for conveying cooling liquid; and the temperature control assembly comprises a temperature sensor, a controller and a cooling mechanism, the temperature sensor is right for detecting the temperature of the cooling liquid in the cooling pipeline, the cooling mechanism is right for cooling the cooling liquid in the cooling pipeline, the controller receives the detection signal of the temperature sensor and sends a control signal for controlling the switch of the temperature sensor to the cooling mechanism. The cooling device is used for cooling the DC-DC converter, and has the advantages of simple structure, short construction time and simple and convenient use. The application also provides a cooling system of the DC-DC converter, which comprises the cooling device.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a cooling device and a cooling system of a DC-DC converter.
Background
A DC-DC converter, as a voltage converter, has advantages of high efficiency, capability of outputting a large current, small quiescent current, and the like, and thus is widely used in many fields. For example, a fuel cell system is provided with a DC-DC converter, and a low-voltage DC power can be converted into a high-voltage DC power by the DC-DC converter and then outputted, thereby forming a stable and controllable DC power supply.
The DC-DC converter can generate a large amount of heat in the working process, so that the rapid aging of internal electronic components, the reduction of the service life and even the damage of the internal electronic components caused by the fact that the DC-DC converter is in a high-temperature working environment for a long time can be avoided, the DC-DC converter needs to be cooled, and the working temperature of the DC-DC converter can be accurately controlled.
At present, for cooling of the DC-DC converter, most laboratories of small and medium-sized enterprises adopt special cooling devices, the structure is complex, the building time is long, workers can control the cooling device after special training, and the cooling device is troublesome to use.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a cooling device for a DC-DC converter, and aims to solve the technical problems that the existing cooling device for the DC-DC converter is complex in structure, long in construction time and troublesome to use.
To achieve the above object, the present invention proposes a cooling device for a DC-DC converter provided with a cooling passage, the cooling device including:
the cooling assembly comprises a cooling pipeline, an inlet of the cooling pipeline is communicated with an outlet of the cooling channel, an outlet of the cooling pipeline is communicated with an inlet of the cooling channel, and the cooling pipeline and the cooling channel form a circulation loop for conveying cooling liquid; and
temperature control subassembly, including temperature sensor, controller and cooling mechanism, temperature sensor is right coolant liquid in the cooling pipeline carries out the temperature detection, cooling mechanism is right coolant liquid in the cooling pipeline cools down, the controller is received temperature sensor's detected signal, and to cooling mechanism sends the control signal of controlling its switch.
Preferably, the cooling assembly further comprises a heat radiation water tank disposed in the circulation loop and communicated with the cooling pipeline.
Preferably, a heat radiating fin is arranged in the heat radiating water tank.
Preferably, the cooling mechanism comprises a fan, and the fan is arranged towards the heat radiation water tank.
Preferably, the controller includes a temperature control switch and a signal generator, the temperature control switch is electrically connected to the temperature sensor, and the signal generator is electrically connected to the temperature control switch and the fan respectively.
Preferably, the cooling module further comprises a water pump for pumping the cooling liquid, and the water pump is arranged in the circulation loop and communicated with the cooling pipeline.
Preferably, the temperature sensor is provided at an inlet section of the cooling line.
The present invention also provides a DC-DC converter cooling system including a DC-DC converter and the cooling device described above.
Compared with the prior art, the technical scheme of the utility model has the beneficial effects that:
a cooling pipeline of a cooling assembly in the cooling device and a cooling channel of the DC-DC converter form a circulating loop, and cooling liquid in the circulating loop absorbs heat emitted by the DC-DC converter when passing through the cooling channel so as to cool the DC-DC converter; the controller of the temperature control assembly receives a detection signal of the temperature sensor, and when the temperature sensor detects that the temperature of the cooling liquid rises to an upper limit temperature, the controller sends a control signal to the cooling mechanism to control the cooling mechanism to be started, and the cooling mechanism starts to cool the cooling liquid in the cooling pipeline; when the temperature sensor detects that the temperature of the cooling liquid is reduced to the lower limit temperature, the controller sends a control signal to the cooling mechanism to control the cooling mechanism to be closed, and the cooling mechanism stops cooling the cooling liquid in the cooling pipeline. The cooling device is simple in structure and short in construction time, can detect the real-time temperature of the cooling liquid in the cooling pipeline, automatically cools the cooling pipeline when the temperature is too high, enables the working temperature of the DC-DC converter to be in a controlled state, does not need to be controlled by a worker, and is simple and convenient to use.
Drawings
Fig. 1 is a schematic structural diagram of a cooling device according to an embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | DC- |
21 | Temperature sensor |
| 1 | |
22 | |
| 11 | |
221 | |
| 12 | |
222 | |
| 13 | |
23 | |
| 2 | Temperature control assembly |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In the following, the embodiments of the present invention will be described in detail with reference to the drawings in the following, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
It will also be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The present invention proposes a cooling device for a DC-DC converter 10, with reference to fig. 1, the DC-DC converter 10 being provided with a cooling channel, the cooling device comprising:
the cooling assembly 1 comprises a cooling pipeline 11, an inlet of the cooling pipeline 11 is communicated with an outlet of the cooling channel, an outlet of the cooling pipeline 11 is communicated with an inlet of the cooling channel, and the cooling pipeline 11 and the cooling channel form a circulation loop for conveying cooling liquid; and
the temperature control assembly 2 comprises a temperature sensor 21, a controller 22 and a temperature reduction mechanism 23, wherein the temperature sensor 21 detects the temperature of the cooling liquid in the cooling pipeline 11, the temperature reduction mechanism 23 reduces the temperature of the cooling liquid in the cooling pipeline 11, and the controller 22 receives a detection signal of the temperature sensor 21 and sends a control signal for controlling the on-off of the temperature reduction mechanism 23.
In the present embodiment, the DC-DC converter 10 may be a DC-DC converter 10 used with a fuel cell system, and the cooling device may be used for cooling the laboratory DC-DC converter 10 during the test, although the type of the DC-DC converter 10 and the application scenario of the cooling device include but are not limited to this. Specifically, the DC-DC converter 10 is provided with a cooling channel, which may be a channel penetrating through two sides of the DC-DC converter 10, and the cooling channel is used for passing a cooling fluid, and the cooling fluid can absorb heat emitted by the operation of the DC-DC converter 10 and take away the heat; the cooling channels on the DC-DC converter 10 can be arranged according to actual conditions.
The cooling device comprises a cooling assembly 1 and a temperature control assembly 2, wherein a cooling pipeline 11 of the cooling assembly 1 and a cooling channel form a circulation loop for conveying cooling liquid, the cooling pipeline 11 can be formed by butting multiple sections of pipelines, specifically, an inlet of the cooling pipeline 11 is communicated with an outlet of the cooling channel, and an outlet of the cooling pipeline 11 is communicated with an inlet of the cooling channel. The cooling liquid in the circulation loop absorbs heat emitted from the DC-DC converter 10 when passing through the cooling passage to achieve cooling of the DC-DC converter 10, and the pipe wall of the cooling pipe 11 absorbs heat of the cooling liquid when passing through the cooling pipe 11 to conduct the heat to the external environment. Of course, other cooling means may be provided in the cooling line 11 to cool the coolant in the cooling line based on the temperature of the coolant so that the coolant can maintain its cooling performance. Alternatively, water may be used as the cooling liquid.
The temperature control assembly 2 is used for controlling the cooling temperature of cooling liquid in the cooling pipeline 11, the temperature control assembly 2 is composed of a temperature sensor 21, a controller 22 and a cooling mechanism 23, the controller 22 is respectively electrically connected with the temperature sensor 21 and the cooling mechanism 23, and a temperature probe of the temperature sensor 21 is positioned in the cooling pipeline 11 and is in direct contact with the cooling liquid to detect the temperature of the cooling liquid; in a specific application, the controller 22 receives a detection signal of the temperature sensor 21, when the temperature sensor 21 detects that the temperature of the cooling liquid in the cooling pipeline 11 rises to an upper limit temperature, the controller 22 sends a control signal to the temperature reduction mechanism 23 to control the temperature reduction mechanism 23 to be started, and the temperature reduction mechanism 23 starts to reduce the temperature of the cooling liquid in the cooling pipeline 11; when the temperature sensor 21 detects that the temperature of the cooling liquid in the cooling pipeline 11 is reduced to the lower limit temperature, the controller 22 sends a control signal to the temperature reduction mechanism 23 to control the temperature reduction mechanism 23 to be closed, and the temperature reduction mechanism 23 stops reducing the temperature of the cooling liquid in the cooling pipeline 11. The cooling mechanism 23 may be a fan, but is not limited thereto.
This cooling device simple structure, construction time are short to the real-time temperature of coolant liquid in the detectable cooling pipeline 11 is cooled down to it automatically when the high temperature, so that DC-DC converter 10's operating temperature is in controlled state, need not the staff and controls, and it is simple and convenient to use.
In some embodiments, the cooling module 1 further comprises a radiator tank 12, the radiator tank 12 being arranged in the circulation circuit and communicating with the cooling circuit 11. Specifically, the heat radiation water tank 12 is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively communicated with the cooling pipeline 11, the temperature of the cooling liquid in the circulation loop can be raised by absorbing the heat of the DC-DC converter 10 after passing through the cooling channel of the DC-DC converter 10, and the heat radiation water tank 12 is used for performing basic heat radiation and temperature reduction on the cooling liquid in the circulation loop so as to maintain the cooling performance of the cooling liquid. Wherein the number of the radiating water tanks 12 is set according to actual conditions.
Further, a heat sink is disposed in the heat sink water tank 12. The heat sink may be attached to an inner wall of the heat sink tank 12 to absorb heat of the coolant passing through the heat sink tank 12. The number and the position arrangement of the heat dissipation fins in the heat dissipation water tank 12 can be set according to actual conditions.
In some embodiments, the cooling mechanism 23 includes a fan disposed toward the radiator tank 12. In this embodiment, the fan blows the heat dissipation water tank 12, so that the heat dissipation speed of the heat dissipation water tank 12 can be increased, and the temperature of the cooling liquid passing through the heat dissipation water tank 12 is lower. The cooling mechanism 23 adopts a fan, the structure is simple and convenient to set, and the heat dissipation effect is obvious.
In some embodiments, the controller 22 includes a temperature-controlled switch 221 electrically connected to the temperature sensor 21 and a signal generator 222 electrically connected to the temperature-controlled switch 221 and the fan, respectively. According to the current operating environment conditions of the DC-DC converter 10, the temperature of the DC-DC converter 10 is not higher than 60 ℃ in the full power state. The signal generator 222 is a PWM signal generator, a default PWM value of the PWM signal generator may be set to 45% and in an on state, a protection temperature of the temperature control switch 221 is set to 60 ℃, and a deviation value is 20 ℃. The internal temperature of the DC-DC converter 10 gradually increases as the operation proceeds, and when the temperature sensor 21 detects that the temperature of the cooling liquid in the cooling pipeline 11 increases to 60 ℃, the temperature control switch 221 reaches the upper temperature limit to turn on the internal relay, and starts to supply power to the PWM signal generator, the PWM signal generator sends a PWM signal with a value of 45% or more to the fan, and the fan receives the PWM signal of the PWM signal transmitter, starts to operate at a speed matched with the PWM signal value continuously; when the temperature sensor 21 detects that the temperature of the cooling liquid in the cooling pipe is about 40 ℃, the temperature control switch 221 reaches the lower temperature limit to disconnect the internal relay, the power supply to the PWM signal generator is stopped, the PWM signal generator stops sending PWM signal values to the fan, and the fan does not receive the PWM signal values sent by the fan, so that the operation is stopped. In this embodiment, the controller 22 is controlled by the signal generator 222 and the temperature control switch 221, and does not need to specially control the controller and program a corresponding control program, so that the operation is simple and convenient, and the time and the manufacturing cost can be saved.
In some embodiments, the cooling module 1 further comprises a water pump 13 for pumping the cooling liquid, the water pump 13 being arranged in the circulation circuit and communicating with the cooling circuit 11. In this embodiment, the cooling liquid is pumped by the water pump 13 in the circulation circuit to flow circularly, and the structure is simple and convenient to set and the work is reliable.
In some embodiments, the temperature sensor 21 is provided at the inlet section of the cooling circuit 11. By providing the temperature sensor 21 at the inlet section of the cooling pipe 11, the temperature of the cooling liquid passing through the cooling passage of the DC-DC converter 10 can be detected to accurately know the real-time operating temperature of the DC-DC converter 10. When the coolant is about to reach the upper limit temperature, the temperature information can be fed back to the controller 22 quickly, so that the controller 22 can make control decisions conveniently, and the cooling effect can be improved.
In the scheme of the embodiment of the utility model, the cooling device has small requirements on environment, field and personnel, can quickly finish the construction of the test environment of the DC-DC converter 10, has strong applicability, and can meet the requirements of small and medium-sized laboratories.
The present invention further provides a cooling system for a DC-DC converter, which includes a DC-DC converter 10 and a cooling device as described in the foregoing embodiments, and the specific structure of the cooling device refers to the foregoing embodiments.
The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A cooling apparatus for a DC-DC converter, characterized in that the DC-DC converter is provided with a cooling passage, the cooling apparatus comprising:
the cooling assembly comprises a cooling pipeline, an inlet of the cooling pipeline is communicated with an outlet of the cooling channel, an outlet of the cooling pipeline is communicated with an inlet of the cooling channel, and the cooling pipeline and the cooling channel form a circulation loop for conveying cooling liquid; and
temperature control subassembly, including temperature sensor, controller and cooling mechanism, temperature sensor is right coolant liquid in the cooling pipeline carries out the temperature detection, cooling mechanism is right coolant liquid in the cooling pipeline cools down, the controller is received temperature sensor's detected signal, and to cooling mechanism sends the control signal of controlling its switch.
2. The cooling apparatus of claim 1, wherein the cooling assembly further comprises a radiator tank disposed in the circulation loop and in communication with the cooling line.
3. A cooling device according to claim 2, wherein a heat radiating fin is provided in the heat radiating water tank.
4. The cooling apparatus as claimed in claim 2, wherein the temperature reducing mechanism includes a fan disposed toward the heat-dissipating water tank.
5. The cooling device as claimed in claim 4, wherein the controller comprises a temperature-controlled switch and a signal generator, the temperature-controlled switch is electrically connected to the temperature sensor, and the signal generator is electrically connected to the temperature-controlled switch and the fan, respectively.
6. The cooling apparatus as claimed in claim 1, wherein the cooling module further comprises a water pump for pumping the cooling liquid, the water pump being provided in the circulation circuit and communicating with the cooling line.
7. The cooling device according to any one of claims 1 to 6, wherein the temperature sensor is provided at an inlet section of the cooling pipeline.
8. A DC-DC converter cooling system, characterized by comprising a DC-DC converter and a cooling device according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122327398.8U CN216391860U (en) | 2021-09-24 | 2021-09-24 | Cooling device and DC-DC converter cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122327398.8U CN216391860U (en) | 2021-09-24 | 2021-09-24 | Cooling device and DC-DC converter cooling system |
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| Publication Number | Publication Date |
|---|---|
| CN216391860U true CN216391860U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122327398.8U Active CN216391860U (en) | 2021-09-24 | 2021-09-24 | Cooling device and DC-DC converter cooling system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115623740A (en) * | 2022-09-30 | 2023-01-17 | 湖北文理学院 | High-temperature cooling system and method based on soft starting cabinet |
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2021
- 2021-09-24 CN CN202122327398.8U patent/CN216391860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115623740A (en) * | 2022-09-30 | 2023-01-17 | 湖北文理学院 | High-temperature cooling system and method based on soft starting cabinet |
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