Heat abstractor for be used for outdoor portable power source
Technical Field
The utility model belongs to the technical field of outdoor portable power supplies, and particularly relates to a heat dissipation device for an outdoor portable power supply.
Background
The outdoor portable mobile power supply is a large-capacity portable power supply which is convenient and easy to carry. With the popularization of electronic products, outdoor portable power sources are used more frequently. Is commonly used for outdoor camping and emergency disaster relief.
The conversion efficiency of the whole power system is not 100%, and part of electric energy is converted into heat energy loss. The housing of the outdoor portable power source is a relatively airtight space, and heat is dissipated through the air outlet. When the discharge power is high, the generated heat is not dissipated to the outside of the shell and accumulated in the shell, so that the temperature in the shell rises, and when the temperature exceeds the proper working temperature (0-40 ℃) of the battery cell, the performance of the battery cell is affected. In order to protect the battery cell, the system can reduce the discharge power, thereby affecting the use experience of users.
Therefore, the cells must be maintained within a reasonable operating temperature range. The heat accumulation is reduced, and the heat is timely emitted to the outside of the shell.
Disclosure of utility model
The utility model provides a heat dissipation device for an outdoor portable power supply, and aims to solve the technical problem that the performance of a battery cell is affected by the fact that the temperature of the battery cell is too high when the power supply works in the prior art.
The technical scheme includes that the outdoor portable power supply comprises a shell and an inverter board positioned in the shell, wherein a plurality of power devices are arranged on the inverter board, the heat dissipation device comprises a radiator and an air compressor, the power devices are tightly attached to the radiator, an air flow slit channel is arranged on the radiator, one end of the air flow slit channel is connected with the output end of the air compressor, and an air outlet is arranged at the other end of the air flow slit channel. The air compressor has the beneficial effects that the air compressor is arranged in front of the radiator, air is sucked from the air inlet holes by utilizing the rotation of the turbine blades of the air compressor and is pressurized to form high-pressure air, the high-pressure air is discharged through the air outlet of the air flow slit channel, the high-pressure air is closely attached to the inner wall to flow, and meanwhile, the coanda effect exists to drive the surrounding air to flow so as to realize blowing in the air discharging direction, namely, a negative pressure area generated by utilizing a high-speed air jet flow on the radiator side is utilized to suck the surrounding air. The effect of blowing is achieved, and therefore heat dissipation and cooling are conducted inside the outdoor portable mobile power supply.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the section of the radiator is of an inverted U-shaped structure.
The outdoor portable mobile power supply has the beneficial effects that the radiator is in an inverted U-shaped structure, so that surrounding air can be driven to flow better, and the heat dissipation and the temperature reduction of the inside of the outdoor portable mobile power supply are realized.
Further, the cross section of the radiator is of an annular structure.
The outdoor portable mobile power supply has the beneficial effects that the shape of the radiator is set to be an annular structure, so that surrounding air can be driven to flow better, and the heat dissipation and the temperature reduction of the inside of the outdoor portable mobile power supply are realized.
Further, the airflow slit channel is positioned on the inner wall of the radiator.
The further scheme has the beneficial effect that the airflow slit channel is arranged on the inner wall of the radiator, so that high-speed airflow can flow closely to the inner wall, and surrounding airflow is driven.
Further, the plurality of power devices are attached to the outer surface of the heat sink.
The heat collecting device has the beneficial effects that the power device mainly generating heat is attached to the outer surface of the radiator, and heat is collected.
Further, the plurality of power devices are uniformly distributed on the outer surface of the radiator.
The further scheme has the beneficial effects that the power devices are uniformly distributed, and damage to the power devices caused by overhigh heat quantity due to heat source aggregation is avoided.
Further, the shell is provided with a heat dissipation hole for dissipating heat.
The heat dissipation device has the beneficial effects that the heat dissipation holes are formed in the shell, so that air in the shell can flow conveniently, and the air flow is smoother.
Further, the heat dissipation holes are opposite to the air outlet.
The air flow interaction device has the beneficial effects that the heat dissipation holes just face the air outlet, and air exhausted from the air outlet can be rapidly and smoothly exhausted out of the shell, so that rapid air flow interaction is realized.
Further, the outer surface of the radiator is provided with a heat absorption layer, and a plurality of power devices are attached to the heat absorption layer.
The heat absorption layer is arranged, so that heat emitted by the power device is easier to collect.
Further, the material of the heat absorbing layer is a thermally stable nanomaterial.
The adoption of the further scheme has the beneficial effect that the heat-stable nano material can dissipate heat or absorb heat through the infrared radiation effect. When the material is lower than the external temperature, heat is absorbed, and when the material is higher than the external temperature, heat is dissipated.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
FIG. 1 is a top view of a heat sink according to an embodiment of the present utility model;
FIG. 2 is a side view of a heat sink according to one embodiment of the present utility model;
Fig. 3 is a front view of a heat dissipating device according to an embodiment of the present utility model.
The air conditioner comprises a reference numeral 1, a radiator, 2, a power device, 3, an air flow slit channel and 4, an air compressor.
Detailed Description
The principles and features of the present utility model are described below with examples given for the purpose of illustration only and are not intended to limit the scope of the utility model.
The following describes the technical scheme of the present utility model and how the technical scheme of the present utility model solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present utility model will be described below with reference to the accompanying drawings.
As shown in fig. 1-3, the embodiment provides a heat dissipating device for an outdoor portable power supply, the outdoor portable power supply comprises a housing of the outdoor portable power supply, a BMS battery protection board, an inverter board and an MPPT controller, wherein the BMS battery protection board, the inverter board and the MPPT controller are arranged in the housing, the BMS battery protection board is connected with the inverter board, the MPPT controller is also connected with the inverter board, a plurality of power devices 2 are arranged on the inverter board, the heat dissipating device comprises a radiator 1 and an air compressor 4, a plurality of power devices 2 are connected with the radiator 1, an air flow slit channel 3 is arranged on the radiator 1, the air flow slit channel 3 is connected with the output end of the air compressor 4, and an exhaust outlet is arranged at one end, far away from the air compressor 4, of the air flow slit channel 3.
The air compressor 4 is arranged in front of the radiator 1, and sucks air from the air inlet hole and pressurizes the air by utilizing the rotation of the turbine blades of the air compressor to form high-pressure air, the high-pressure air is discharged through the air outlet of the air flow slit channel 3, the high-pressure air is closely attached to the inner wall to flow, and meanwhile, the coanda effect exists to drive the surrounding air to flow so as to realize blowing in the air exhaust direction, namely, a negative pressure area generated by utilizing a high-speed moving air jet flow on the radiator 1 side is utilized to suck the surrounding air. The effect of blowing is achieved, and therefore heat dissipation and cooling are conducted inside the outdoor portable mobile power supply.
Optionally, the cross section of the radiator 1 is an inverted U-shaped structure.
The radiator 1 is of an inverted U-shaped structure, so that surrounding air can be driven to flow better, and heat dissipation and cooling are achieved inside the outdoor portable mobile power supply.
Optionally, the cross section of the radiator 1 is a ring structure.
The radiator 1 is arranged to be of an annular structure, so that surrounding air can be driven to flow better, and the outdoor portable mobile power supply can be cooled.
Optionally, the air flow slit channel 3 is located on the inner wall of the radiator 1.
Wherein the air flow slit channel 3 is provided in the inner wall of the radiator 1 so that the high-speed air flow flows against the inner wall, thereby entraining the surrounding air flow.
Optionally, a plurality of power devices 2 are attached to the outer surface of the heat sink 1.
Wherein, the power device 2 mainly generating heat is attached to the outer surface of the radiator 1 to collect heat.
Optionally, the plurality of power devices 2 are uniformly distributed on the outer surface of the heat sink 1.
Wherein, a plurality of power devices 2 evenly distribute, avoid appearing the heat source gathering and lead to the heat too high to cause the damage to power device 2.
Optionally, a heat dissipation hole for dissipating heat is formed in the housing.
Wherein, through starting the louvre on the shell, the air flow in the inside of shell of being convenient for makes the air flow unobstructed more.
Optionally, the heat dissipation hole is opposite to the air outlet.
The heat dissipation holes just face the air outlet, and air exhausted from the air outlet can be rapidly discharged out of the shell, so that rapid interaction of air flows is realized.
Optionally, the outer surface of the heat radiator 1 is provided with a heat absorbing layer, and a plurality of the power devices 2 are attached to the heat absorbing layer.
Wherein, through setting up the heat absorbed layer, make the heat that power device 2 sent more easily gather.
Optionally, the material of the heat absorbing layer is a thermally stable nanomaterial.
Wherein, the heat stable nanometer material can dissipate heat or absorb heat through the infrared radiation effect. When the material is lower than the external temperature, heat is absorbed, and when the material is higher than the external temperature, heat is dissipated.
Working principle:
In outdoor portable power supply working process, power device 2 generates heat, and heat that will send out is conducted to radiator 1 through the heat absorbed layer, radiator 1 can be aluminium piece radiator 1, aluminium piece radiator 1 wholly is the structure of falling U-shaped, can set up temperature detector on the aluminium piece radiator 1, when detecting that the temperature reaches the preset temperature, start air compressor 4 and dispel the heat and cool, also can start air compressor 4 and dispel the heat and cool just when outdoor portable power supply work begins, after starting air compressor 4, air compressor 4 absorbs air and compresses, form high-pressure air, discharge high-pressure control to air current slit passageway 3, finally discharge through the air exit, the air exit is a crack, the purpose is because high-pressure air current is in close to the inner wall flow and is because coanda effect exists and drive the air flow realization around to the direction of airing exhaust, the air around the suction is realized to the negative pressure region that is produced in radiator 1 side to utilize a high-speed motion's air jet. The effect of blowing is achieved, and therefore heat dissipation and cooling are conducted inside the outdoor portable mobile power supply.
The above description is only illustrative of the preferred embodiments of the present utility model and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the disclosure referred to in the present utility model is not limited to the specific combinations of technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the spirit of the disclosure. Such as the above-mentioned features and the technical features disclosed in the present utility model (but not limited to) having similar functions are replaced with each other.