An intelligent temperature control and heat dissipation system based on a mobile power supply

Abstract

The application discloses a kind of intelligent temperature control heat dissipation systems based on mobile power supply;Through lithium battery direct adhesion cooling plate, heat is conducted to the bottom cooling plate, then through the arc-shaped heat dissipation groove, cold air is concentrated and introduced to the bottom of the cooling plate to carry away heat, and the cold air is blown to the heat dissipation hole through the through hole along the arc surface of the arc-shaped plate, which can carry away heat, and since the edge heat is smaller than the heat at the lithium battery adhesion position, the cooling fan can still cool the lithium battery after blowing through the edge position, achieving the purpose of secondary heat dissipation;At the same time, the main internal heat dissipation effect is the combined action of the arc-shaped heat dissipation groove and the cooling fan, which is better than the heat dissipation effect under the general heat dissipation structure, and the volume is relatively small.The structure of the upper and lower shells separated can ensure that the environment of the mobile power supply above is single, and avoid environmental influences such as water immersion.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile power supply, in particular to an intelligent temperature control and heat dissipation system based on a mobile power supply. BACKGROUND

[0002] The intelligent power mobile test power supply is used in the field of electrical engineering, and provides a power frequency power supply for electrical tests, electric energy meter detection, temporary lighting, etc. It is suitable for use in field construction or power failure situations. The device uses a combination of new power lithium batteries and pure sine wave inverter power supplies. The new power lithium battery uses ternary lithium battery cells, which have the advantages of high energy density, small size, light weight, high charging efficiency, low temperature resistance, etc. The rated power of the high-power inverter power supply can reach 2kW, and the output voltage is a pure sine wave, with small voltage output harmonics, low distortion, high efficiency and strong load carrying capacity. However, due to the large power of the device, the heat dissipation effect is limited.

[0003] For example, a "lithium ion battery cell temperature control testing device with fan heat dissipation" disclosed in Chinese patent literature, with publication number CN110907840A; including a temperature controller and a temperature control chamber; the temperature controller includes a temperature equalizing power supply, a temperature sensing module, a refrigeration fin control module and a heat dissipation monitoring module; the temperature equalizing power supply provides power for the temperature equalizing fan, the refrigeration fin control module is connected to the refrigeration fin of the temperature control chamber, and the refrigeration fin works in cooling mode or heating mode by changing the current direction; the temperature sensing module is connected to the temperature probe pin in the temperature control chamber, and communicates with the refrigeration fin control module, compares the monitored cell surface temperature with the set value, and then controls the module to start or stop the refrigeration fin; the heat dissipation monitoring module connects the pins of the heat dissipation fan in the temperature control chamber to power it and monitor the current on the heat dissipation fan; the refrigeration fin control module communicates with the heat dissipation monitoring module, and when the heat dissipation monitoring module detects abnormal fan current, the refrigeration fin control module stops supplying power to the refrigeration fin; the invention has the characteristics of small size, low cost, fast and stable temperature control, accurate temperature measurement, wide temperature range, easy electrical testing, high working stability. However, the refrigeration fin has a large volume, which cannot meet the daily carrying needs of the mobile power supply, and the refrigeration fin still needs to exchange heat with the outside and needs a large amount of electricity when cooling, so it is difficult to meet the heat exchange needs of the mobile power supply. SUMMARY

[0004] The present application is directed to the problem that the heat dissipation device of the mobile power supply at the present stage is often large in size and difficult to meet the heat exchange demand of lithium battery; an intelligent temperature control heat dissipation system based on mobile power supply is provided; the heat is conducted to the bottom cooling plate through the direct adhesion of the lithium battery to the cooling plate, and then the cold air is concentrated and introduced into the bottom of the cooling plate through the arc-shaped heat dissipation groove to take away the heat, the cold air is blown to the heat dissipation hole through the through hole along the arc surface of the arc-shaped plate, and the heat can be taken away, and since the heat at the edge is smaller than that at the adhesion position of the lithium battery, the lithium battery can still be cooled after the cooling air blows through the edge position, achieving the purpose of secondary heat dissipation; meanwhile, the main heat dissipation effect inside is jointly acted by the arc-shaped heat dissipation groove and the heat dissipation fan, and the heat dissipation effect is better than that under the general heat dissipation structure, and the size is relatively small. The structure of separating the upper and lower shells can ensure that the environment of the mobile power supply above is single, avoiding the influence of the environment such as water immersion.

[0005] The above technical problems of the present application are mainly solved by the following technical scheme:

[0006] An intelligent temperature control heat dissipation system based on mobile power supply, the system comprises an upper shell and a lower shell; the bottom plate of the upper shell is a fixed plate; a lithium battery is arranged on one side of the fixed plate; a circuit board is arranged vertically to the lithium battery by adhering to the side plate of the upper shell; a clamping fixed plate is arranged on the top of the circuit board; a cooling plate is arranged on the top of the lower shell; a plurality of heat dissipation grooves are arranged on the bottom of the cooling plate; a heat dissipation fan is arranged on the bottom of the lower shell; and a ventilation fan is arranged on the side of the lower shell corresponding to the lithium battery. The heat is conducted to the bottom cooling plate through the direct adhesion of the lithium battery to the cooling plate, and then the cold air is concentrated and introduced into the bottom of the cooling plate through the arc-shaped heat dissipation groove to take away the heat, the cold air is blown to the heat dissipation hole through the through hole along the arc surface of the arc-shaped plate, and the heat can be taken away, and since the heat at the edge is smaller than that at the adhesion position of the lithium battery, the lithium battery can still be cooled after the cooling air blows through the edge position, achieving the purpose of secondary heat dissipation; meanwhile, the main heat dissipation effect inside is jointly acted by the arc-shaped heat dissipation groove and the heat dissipation fan, and the heat dissipation effect is better than that under the general heat dissipation structure, and the size is relatively small. The structure of separating the upper and lower shells can ensure that the environment of the mobile power supply above is single, avoiding the influence of the environment such as water immersion.

[0007] As a preferred, the heat dissipation groove is an arc-shaped plate; the arc-shaped back of the heat dissipation groove is protruded away from the ventilation fan; a mesh-shaped through hole is arranged on the top of the heat dissipation groove adhering to the cooling plate; a heat dissipation port is arranged on the side of the lower shell opposite to the ventilation fan; and the heat dissipation port is arranged in parallel to the mesh-shaped through hole. The arc-shaped heat dissipation groove can introduce the cold air of the bottom heat dissipation fan to the groove surface, and the cold air is sent upward to the surface of the cooling plate as much as possible through the air guiding effect of the groove surface, taking away the heat.

[0008] As preferred, the fixing plate and the cooling plate are arranged in close contact; the fixing plate is provided with a sliding block; the cooling plate is provided with a sliding groove adapted to the sliding block; the fixing plate is the bottom surface of the upper shell and is integrated with the side plate of the upper shell; and the cooling plate is fixed to the top of the lower shell by a buckle. After the two are connected, the inside of the upper shell forms a relatively closed environment, and the lower shell can introduce wind from the outside to cool the mobile power supply in the upper shell.

[0009] As preferred, the fixing plate is provided with a placing groove, the lithium battery is arranged in the placing groove, and the lithium battery is arranged in close contact with the cooling plate. The lithium battery is arranged in close contact with the cooling plate to discharge heat as much as possible. The lithium battery is arranged on one side of the upper shell, and the position of the lithium battery is opposite to the position of the ventilation fan in the lower shell. The ventilation fan blows air to the position. Since the part of the cooling plate close to the lithium battery is heated to a higher temperature, the cold air behind the cooling plate cools the part of the cooling plate in front, achieving the purpose of double cooling.

[0010] As preferred, the top of the clamping fixing plate is provided with a faceplate. The faceplate comprises: an AC output terminal arranged on one side of the top of the faceplate; an AC output socket arranged at the bottom of the AC output terminal, a fuse base and an AC output indicator lamp arranged on one side of the AC output socket; the AC output indicator lamp is arranged at the bottom of the AC output socket; a wireless charging base is arranged at the bottom of the AC output indicator lamp; a grounding terminal is arranged on one side of the faceplate relative to the AC output terminal; a device charging port, a power switch, an AC output leakage protector and an AC output knife switch are arranged in sequence at the bottom of the grounding terminal; a storage box is arranged between the AC output terminal and the grounding terminal; a rotary knob mouse is arranged on one side of the AC output knife switch; and a display screen is arranged between the wireless charging base and the rotary knob mouse. The faceplate can control each component of the circuit board to work, and the lithium battery of the mobile power supply can be connected to the power supply to supply power to the load.

[0011] As preferred, the system comprises a charging circuit, a lithium battery, a pure sine wave inverter, an AC output leakage protector, an AC output knife switch and a power output port connected in sequence; the commercial power is connected to the input end of the charging circuit; and the lithium battery is connected to the power switch. The system circuit completes the daily work of the mobile power supply.

[0012] As preferred, a semiconductor refrigeration piece is arranged between the cooling plates; temperature sensors are arranged in close contact on both sides of the placing groove; the temperature sensors are connected to the semiconductor refrigeration piece through a comparison circuit; and the semiconductor refrigeration piece is controlled to work by monitoring the temperature of the lithium battery in real time. The refrigeration piece only starts to work when the temperature reaches a certain limit, so as to reduce the working power of the lithium battery as much as possible. If the working power of the lithium battery is large and the temperature is too high, the semiconductor refrigeration piece is controlled to start to cool the cooling plate when the temperature exceeds the range set by the comparison circuit.

[0013] As preferred, the lower shell is provided with a mesh air window near the side of the ventilation fan, which can provide fresh and cool air for the inside, and since the upper and lower shells are not interconnected, the environment of the lower shell will not affect the main function of the upper shell.

[0014] The beneficial effects of the present application are:

[0015] By directly attaching the cooling plate to the lithium battery, the heat is conducted to the bottom cooling plate, and then the cold air is concentrated and introduced into the bottom of the cooling plate through the arc-shaped heat dissipation groove to take away the heat. The cold air is blown to the heat dissipation hole through the arc surface of the arc-shaped plate, which can take away the heat. Since the edge heat is smaller than the heat at the attachment position of the lithium battery, the cooling wind can still cool the lithium battery after blowing through the edge position, achieving the purpose of secondary heat dissipation. At the same time, the main heat dissipation effect inside is jointly acted by the arc-shaped heat dissipation groove and the heat dissipation fan, which is better than the heat dissipation effect under the general heat dissipation structure, and the volume is relatively small. The structure of separating the upper and lower shells can ensure that the environment of the upper mobile power supply is single, avoiding the influence of environmental factors such as water immersion. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a side view structure diagram of the system;

[0017] Figure 2 is a heat dissipation groove structure diagram;

[0018] Figure 3 is a system block diagram of the system;

[0019] In the figure: 1-panel; 2-clamping support frame; 3-lithium battery; 4-cooling plate; 5- placement groove; 6-heat dissipation groove; 7-heat dissipation fan; 8-ventilation fan; 9-mesh air window. DETAILED DESCRIPTION

[0020] An intelligent temperature control and heat dissipation system based on a mobile power supply, as shown in the figure, includes upper and lower shells connected by a mortise and tenon structure. The upper and lower shells can be disassembled from each other, so that when the devices in the lower shell are damaged due to environmental factors, they can be replaced by replacing the lower shell.

[0021] The lithium battery of the mobile power supply is fixed between the bottom plate of the upper shell, i.e. between the fixed plates. The lithium battery is placed inside the placement groove provided between the fixed plates and penetrates the fixed plates, and the cooling plate attached to the top of the lower shell is placed. The cooling plate is made of heat-conducting material, which can take away as much heat generated by the lithium battery as possible through the cooling plate.

[0022] The bottom of the cooling plate is provided with a plurality of heat dissipation grooves; the heat dissipation grooves are arc-shaped plates, the arc-shaped plates are raised away from the ventilating fan; the top of the heat dissipation grooves is provided with a mesh-shaped through hole in abutment with the cooling plate, and the heat dissipation holes and the mesh-shaped through hole are parallel. The bottom of the lower shell is provided with a heat dissipation fan, and the side corresponding to the lithium battery is provided with a ventilating fan. The lithium battery is directly abutted with the cooling plate, the heat is conducted to the bottom cooling plate, the cold air is concentrated and introduced into the bottom of the cooling plate through the arc-shaped heat dissipation grooves, the cold air is blown to the heat dissipation holes along the arc surface of the arc-shaped plate, the heat is removed, and the lithium battery can be cooled after the edge position is blown by the cooling air, so that the purpose of secondary cooling is achieved; meanwhile, the main internal heat dissipation effect is jointly achieved by the arc-shaped heat dissipation grooves and the heat dissipation fan, the heat dissipation effect is better than that of the general heat dissipation structure, and the volume is relatively small. The structure that the upper shell and the lower shell are separated can ensure that the environment of the upper mobile power supply is single, and the influence of the environment such as water immersion is avoided.

[0023] The size of the mesh-shaped air window and the ventilating fan can be selected according to the volume, the ventilating fan only plays the role of air circulation, a smaller volume and smaller power fan can be used to reduce the volume of the mobile power supply.

[0024] The top of the clamping fixing plate is provided with a panel, which comprises: an alternating current output terminal is arranged on one side of the top of the panel; an alternating current output socket is arranged at the bottom of the alternating current output terminal, and a fuse base and an alternating current output indicator are arranged on one side of the alternating current output socket; a wireless charging base is arranged at the bottom of the alternating current output indicator; a grounding terminal is arranged on the side of the panel opposite to the alternating current output terminal; a device charging port, a power switch, an alternating current output leakage protector and an alternating current output knife switch are sequentially arranged at the bottom of the grounding terminal; a storage box is arranged between the alternating current output terminal and the grounding terminal, which can be used for storing part of the messy wire slot, so that the internal wiring is clearer. A rotary knob mouse is arranged on one side of the alternating current output knife switch; and a display screen is arranged between the wireless charging base and the rotary knob mouse.

[0025] The AC output terminal is used for outputting AC 220V / 50Hz power supply; the AC output socket is used for outputting AC 220V / 50Hz power supply; the fuse base is used for built-in fuse, and has overload protection function; the AC output indicator lamp is used for indicating the power output of the AC output terminal and the AC output socket; the wireless charging base is used for providing a USB Type-C interface, a USB 3.0 interface and wireless charging function; the display screen is used for displaying the battery power, voltage, current, power and charging and discharging state; the storage box is used for storing the device power charging line; the grounding end is used for the device shell grounding end, which should be reliably connected with the ground; the device charging port is connected with 220V mains input, which is used for internal large capacity lithium battery charging interface. The power switch opens the internal inverter power supply and the display screen; the AC output leakage protector is used as an AC power output switch, which is used for closing or cutting off the AC power output, and has leakage protection function; the AC output knife switch is used as an AC power output switch, which is used for closing or cutting off the AC power output, and has obvious visible breaking point; the knob mouse, left rotation reduces contrast, right rotation increases contrast.

[0026] The mobile power supply adopts multiple AC output modes, has two national standard jacks and a set of special output terminals, and meets the needs of various electrical equipment. The leakage protection switch is connected in the AC output loop to prevent human body electric shock and ensure personal safety. The AC output adopts knife switch output, which has obvious visible breaking point, and meets the safety specification standard of power system. The device has a USB Type-C interface, a USB 3.0 interface and wireless charging function, which can charge mobile phones and other small electronic products. The charging port is provided with a rubber dustproof plug to prevent rain and dust. The high-definition LCD display screen displays in full Chinese, and the interface is simple and clear. The internal battery has multiple protections such as overcharge, overcurrent, overdischarge, short circuit, overvoltage and overload, which is safe and reliable. The intelligent temperature control cooling system ensures the long-term safe operation of the device. The environmental adaptability is strong, the case has the characteristics of pressure resistance, drop resistance and wear resistance, the box body is provided with TUP wear-resistant wheels and pull rod, which is convenient for moving and carrying, and is suitable for use in outdoor environment.

[0027] As shown in Figure 3 The system comprises a charging circuit, a lithium battery, a pure sine wave inverter, an AC output leakage protector, an AC output knife switch and a power output port connected in sequence; the mains is connected with the input end of the charging circuit; the lithium battery is connected with the power switch.

[0028] Semiconductor refrigerating fins are arranged between the cooling plates; temperature sensors are arranged on the both sides of the placing groove in a pasting mode; the temperature sensors are connected with the semiconductor refrigerating fins through a comparison circuit; the lithium battery temperature is monitored in real time to control the work of the semiconductor refrigerating fins.

[0029] HZST6102A intelligent power mobile test power supply is used in electrical engineering field, provides power frequency power supply for electrical test, electric energy meter detection, temporary lighting, etc., suitable for use in field construction or power failure occasions. The device uses a combination of new power lithium batteries and pure sine wave inverter power supply. The new power lithium battery has the advantages of high energy density, small size, light weight, high charging efficiency, low temperature resistance, etc. The maximum output power of the inverter power supply can reach 2kW, the output voltage is pure sine wave, the voltage output harmonic is small, the distortion is low, the efficiency is high, and the load capacity is strong.

Claims

1. A mobile power supply based intelligent temperature control cooling system, characterized in that, The system comprises an upper shell and a lower shell; the bottom plate of the upper shell is a fixed plate; a lithium battery is arranged on one side of the fixed plate; a circuit board is arranged vertically to the lithium battery by adhering to the side plate of the upper shell; the top of the circuit board is provided with a clamping fixed plate; the top of the lower shell is provided with a cooling plate; the bottom of the cooling plate is provided with a plurality of heat dissipation grooves; the bottom of the lower shell is provided with a heat dissipation fan; the side of the lower shell corresponding to the lithium battery is provided with a ventilation fan; the upper shell and the lower shell are detachably connected through a mortise and tenon structure, so that the devices in the lower shell can be replaced individually; the heat dissipation groove is an arc-shaped plate, which concentrates and guides cold air to the bottom of the cooling plate to carry away heat; the cold air is upward along the arc surface of the arc-shaped plate and blows to the heat dissipation hole through the through hole; the cooling plate is provided with a semiconductor refrigeration sheet; temperature sensors are arranged on both sides of the placing groove.

2. The intelligent temperature control heat dissipation system based on a mobile power supply according to claim 1, characterized in that, The heat dissipation groove is an arc-shaped plate; the arc-shaped back of the heat dissipation groove is convex to the ventilation fan; the top of the heat dissipation groove is provided with a mesh-shaped through hole by adhering to the cooling plate; the side of the top of the lower shell opposite to the ventilation fan is provided with a heat dissipation port; the heat dissipation port is arranged parallel to the mesh-shaped through hole.

3. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The fixed plate and the cooling plate are arranged in adhesion; the fixed plate is provided with a sliding block; the cooling plate is provided with a sliding groove adapted to the sliding block; the fixed plate is the bottom surface of the upper shell, which is integrated with the side plate of the upper shell; the cooling plate is fixed on the top of the lower shell by buckling.

4. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The placing groove is arranged through the fixed plate; the lithium battery is arranged between the placing grooves; the lithium battery is arranged by adhering to the cooling plate.

5. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The top of the clamping fixed plate is provided with a panel; the panel comprises: an alternating current output terminal is arranged on one side of the top of the panel; an alternating current output socket is arranged at the bottom of the alternating current output terminal, and a fuse base and an alternating current output indicator are arranged on one side of the alternating current output socket; the alternating current output indicator is provided with a wireless charging base at the bottom; a grounding terminal is arranged on the side of the panel opposite to the alternating current output terminal; a device charging port, a power switch, an alternating current output leakage protector and an alternating current output knife switch are sequentially arranged at the bottom of the grounding terminal; a storage box is arranged between the alternating current output terminal and the grounding terminal; a rotary knob mouse is arranged on one side of the alternating current output knife switch; a display screen is arranged between the wireless charging base and the rotary knob mouse.

6. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The system comprises a charging circuit, a lithium battery, a pure sine wave inverter, an alternating current output leakage protector, an alternating current output knife switch and a power output port connected in sequence; the mains is connected to the input end of the charging circuit; the lithium battery is connected to the power switch.

7. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The cooling plate is provided with a semiconductor refrigeration sheet; temperature sensors are arranged on both sides of the placing groove; the temperature sensors are connected to the semiconductor refrigeration sheet through a comparison circuit; the semiconductor refrigeration sheet is controlled to work by monitoring the temperature of the lithium battery in real time.

8. The intelligent temperature control heat dissipation system based on a mobile power supply of claim 1, wherein, The lower shell is provided with a mesh-shaped air exchange window near the side of the ventilation fan.

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