CN209675444U - A kind of ultralow temperature emergency starting device - Google Patents

Abstract

The utility model discloses an ultra-low temperature emergency starting device, which comprises a casing and a power supply module placed in the casing. The power module includes a lithium battery power supply and a capacitor module coupled in parallel to the positive and negative poles of the lithium battery power supply. The two ends of the positive and negative poles of the battery power supply are respectively coupled with the output positive terminal and the output negative terminal; the utility model has the capability of discharging in the form of a parallel capacitor module, so that the lithium battery power module itself generates heat, and the capacitor module is fully charged. The advantages of carrying out the discharge and eventually starting the external device.

Description

An ultra-low temperature emergency starting device

technical field

The utility model relates to the technical field of battery power sources, in particular to an ultra-low temperature emergency starting device.

Background technique

"Lithium battery power supply" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. In 1912, the lithium metal battery was first proposed and studied by GilbertN.Lewis. In the 1970s, M.S.Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements.

Lithium battery power supply has the following advantages: 1. High voltage, the working voltage of a single battery is as high as 3.7-3.8V (3.2V for lithium iron phosphate), which is 3 times that of Ni-Cd and Ni-MH batteries; 2. Specific energy Large, the actual specific energy that can be achieved is about 555Wh/kg, that is, the specific capacity of the material can reach more than 150mAh/g (3--4 times that of Ni-Cd, 2--3 times that of Ni-MH), which is close to Its theoretical value is about 88%; 3. Long cycle life, generally can reach more than 500 times, or even more than 1000 times, and lithium iron phosphate can reach more than 2000 times. For electrical appliances with small current discharge, the service life of the battery will double the competitiveness of electrical appliances; 4. Good safety performance, no pollution, no memory effect. As the lithium battery power source of the predecessor of Li-ion, because metal lithium is easy to form dendrites Short circuit reduces its application field: Li-ion does not contain cadmium, lead, mercury and other elements that pollute the environment: a major drawback of Ni-Cd batteries with some processes (such as sintered type) is "memory effect". Seriously restrict the use of batteries, but Li-ion does not have this problem at all; 5. The self-discharge is small, and the self-discharge rate of Li-ion fully charged at room temperature after storage for 1 month is about 2%, which is much lower than that of Ni - 25-30% of Cd, 30-35% of Ni-MH; 6. Fast charging, the capacity can reach more than 80% of the nominal capacity after 1C charging for 30 minutes, and the nominal capacity can be reached in 10 minutes for the phosphorus iron battery 90%; 7. Working temperature, the working temperature is -25~45°C.

The operating temperature of the lithium battery power supply is -25~45°C, but due to the existence of technical barriers, the lithium battery power supply in the prior art cannot be used in an environment below -40°C.

Utility model content

Aiming at the deficiencies of the existing technology, the purpose of this utility model is to provide an ultra-low temperature emergency starting device, which can be discharged in the form of a parallel capacitor module, so that the lithium battery power module can be used normally due to self-heating.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions:

An ultra-low temperature emergency starting device, including a housing and a power module placed in the housing, the power module includes a lithium battery power supply and a capacitor module coupled in parallel to the positive and negative poles of the lithium battery power supply, the positive and negative poles of the lithium battery power supply An output positive terminal and an output negative terminal are respectively coupled to the two ends of the pole.

By adopting the above technical scheme, in the ultra-low temperature environment below minus 40 degrees, the lithium battery power supply cannot start the device, and the capacitor modules are connected in parallel at both ends of the lithium battery power supply, and the lithium battery power supply can be charged through the capacitor module. The temperature around the power supply increases, and the low temperature resistance of the capacitor module is good. After charging, it can also be discharged. Finally, the lithium battery power supply and the capacitor module are discharged together, so that the entire device can be used in an ultra-low temperature environment, increasing the use of the device. practical value.

The utility model is further set as: the capacitor module is a super capacitor module.

By adopting the above technical scheme, the supercapacitor module has the following advantages: 1. The charging speed is fast, and it can reach more than 95% of its rated capacity after charging for 10 seconds to 10 minutes; 2. The cycle life is long; 3. The large current discharge capacity is super strong , high energy conversion efficiency, and small process loss; therefore, the use of super capacitors for auxiliary discharge has the advantages of shortening the corresponding time and improving startup efficiency.

The utility model is further configured as: a power display module is coupled to the lithium battery power supply.

By adopting the above technical solution, a power display module is provided on the lithium battery power supply, and the power display module can facilitate real-time grasp of the power status of the lithium battery power supply, increasing the practical value of the device.

The utility model is further configured as follows: the housing is provided with power output interface modules with a DC voltage of 19V and a current of 3A, a DC voltage of 12V and a current of 2A, and a DC voltage of 5V and a current of 1A.

By adopting the above technical solution, different power supply output interface modules are provided to facilitate docking with devices with different needs, the operation is simple and convenient, and the practical value of the device is increased.

The utility model is further configured as follows: the DC power output interface module with a voltage of 5V and a current of 1A is a USB output interface module.

By adopting the above-mentioned technical solution, the interface module for USB output is set, which is convenient for charging other devices through the USB interface, and the operation is simple and convenient.

The utility model is further configured as follows: the housing is provided with an LED lighting lamp, and a control switch for controlling its opening or closing is coupled in series to the LED lighting lamp.

By adopting the above technical solution, setting the LED lighting lamp is convenient for lighting in a dark environment, and the practical value of the equipment is increased.

The utility model is further configured as: the side of the housing is provided with ventilation windows.

By adopting the above-mentioned technical solution, setting the ventilation window facilitates the heat dissipation treatment of the lithium battery power supply, and increases the practical value of the equipment.

The utility model is further configured as follows: the housing includes a front shell and a rear shell that are fastened and spliced with each other, and the output positive terminal and the output negative terminal are both arranged on the rear shell.

By adopting the above-mentioned technical solution, the assembly form of the front shell and the rear shell is set to be fastened to each other, which facilitates the installation and disassembly of the lithium battery power supply, the operation is simple and convenient, and the practical value of the device is increased.

The utility model is further configured as follows: the housing is provided with a power supply inner box, and the lithium battery power supply is arranged inside the power supply inner box.

By adopting the above technical solution, the lithium battery power supply is arranged in the power supply inner box, which is convenient for protecting the lithium battery power supply, and the operation is simple and convenient, which increases the practical value of the device.

The utility model is further configured as follows: the capacitor module is arranged in the housing next to the inner box of the power supply.

By adopting the above technical solution, the capacitor module is arranged in the casing to facilitate installation or disassembly of the capacitor module, the operation is simple and convenient, and the practical value of the device is increased.

In summary, the beneficial technical effects of the utility model are:

1. In an ultra-low temperature environment below minus 40 degrees, the lithium battery power supply cannot start the device. A capacitor module is connected in parallel at both ends of the lithium battery power supply, and the capacitor module is used to charge the lithium battery power supply to heat up, which increases the surrounding temperature of the lithium battery power supply. At the same time, the capacitor module has good low temperature resistance, and can also be discharged after charging, and finally realizes the joint discharge of the lithium battery power supply and the capacitor module, so that the entire device can be used in an ultra-low temperature environment, increasing the practical value of the device;

2. A power display module is installed on the lithium battery power supply, through which the power supply of the lithium battery power supply can be easily grasped in real time, which increases the practical value of the device.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment.

Reference signs: 1. Shell; 11. Front shell; 111. Power output interface module; 112. Power display module; 113. Ventilation window; 12. Rear shell; 121. Output positive terminal; 122. Output negative terminal; 123 1. LED lighting lamp; 13. power inner box; 131. lithium battery power supply; 14. supercapacitor module.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Referring to Fig. 1, it is an ultra-low temperature emergency starting device disclosed by the utility model, which includes a housing 1 and a power supply inner box 13 placed in the housing 1; the housing 1 includes a front shell 11 and a rear shell 12 that are snapped together , a lithium battery power supply 131 is fixed in the power supply inner box 13, and a supercapacitor module 14 is fastened and fixed on the housing 1 next to the power supply inner box 13. The supercapacitor module 14 is arranged in parallel with the lithium battery power supply 131, and the lithium battery power supply The output positive terminal 121 and the output negative terminal 122 are respectively connected in series to the positive and negative poles of 131 , and both the output positive terminal 121 and the output negative terminal 122 are arranged on the rear housing 12 .

A power display module 112 is arranged on the front shell 11, and the power display module 112 is made up of multiple groups of nixie tubes, which is connected to the lithium battery power supply 131 and detects the battery remaining quantity of the lithium battery power supply 131 in real time; the front shell 11 is provided with a voltage of 19V and current are 3A DC, voltage is 12V and current is DC 2A, voltage is 5V and current is DC power output interface module 111; each group of power output interface modules 111 is equipped with 5V and current The DC power output interface module 111 of 1A is a USB output interface module; an LED lighting lamp 123 is arranged on the rear casing 12, and a control switch for controlling its opening or closing is coupled in series on the LED lighting lamp 123; A ventilation window 113 is provided on the side wall of the casing 1 composed of the rear casing 11 and the rear casing 12, through which the heat dissipation process can be facilitated.

The implementation principle of this embodiment is: in an ultra-low temperature environment, the lithium battery power supply 131 can start to discharge through the parallel connection of the supercapacitor module 14, and the supercapacitor module 14 is charged. At this time, the lithium battery power supply 131 can generate a part of heat by itself. The capacitor module 14 can adapt to the ultra-low temperature environment, and discharge through the lithium battery power supply 131 and the super capacitor module 14 together after the charging is completed, so as to provide the starting current for the device.

The embodiments of this specific embodiment are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model accordingly: all equivalent changes made according to the structure, shape and principle of the present utility model are all valid. Should be covered within the protection scope of the present utility model.

Claims (10)

1. An ultra-low temperature emergency starting device, characterized in that: it comprises a housing (1) and a power module placed in the housing (1), the power module includes a lithium battery power supply (131) and is coupled in parallel to the lithium battery The positive and negative capacitor modules of the power supply (131), the positive and negative terminals of the lithium battery power supply (131) are respectively coupled to the output positive terminal (121) and the output negative terminal (122). 2. The ultra-low temperature emergency starting device according to claim 1, characterized in that: the capacitor module is a super capacitor module (14). 3. The ultra-low temperature emergency starting device according to claim 1, characterized in that: a power display module (112) is coupled to the lithium battery power supply (131). 4. A kind of ultra-low temperature emergency starting device according to claim 1, characterized in that: the housing (1) is provided with a DC with a voltage of 19V and a current of 3A, a DC with a voltage of 12V and a current of 2A, A DC power output interface module (111) with a voltage of 5V and a current of 1A. The ultra-low temperature emergency starting device according to claim 4, characterized in that: the DC power output interface module (111) with a voltage of 5V and a current of 1A is a USB output interface module. 6. The ultra-low temperature emergency starting device according to claim 1, characterized in that: an LED lighting lamp (123) is arranged on the housing (1), and a control device is connected in series to the LED lighting lamp (123). Its on or off control switch. 7. The ultra-low temperature emergency starting device according to claim 1, characterized in that: a ventilation window (113) is provided on the side of the casing (1). 8. The ultra-low temperature emergency starting device according to claim 1, characterized in that: the housing (1) includes a front shell (11) and a rear shell (12) that are fastened and spliced with each other, and the output positive terminal (121) and the output negative terminal (122) are both arranged on the rear shell (12). 9. The ultra-low temperature emergency starting device according to claim 1, characterized in that: the housing (1) is provided with a power supply inner box (13), and the lithium battery power supply (131) is set in the power supply inner box (13) INTERNAL. 10. The ultra-low temperature emergency starting device according to claim 9, characterized in that: the capacitor module is arranged in the casing (1) next to the inner box (13) of the power supply.