TWM632748U - Car charger for agricultural electric tool - Google Patents

Abstract

A vehicle charger for an agricultural electric tool, connected between a battery device of the agricultural electric tool and a car battery, the car battery has a positive pole and a negative pole, includes a power conversion device, has a positive pole connector and a negative pole connector, and at least one power output terminal, the positive connector is connected to the positive pole of the car battery, the negative connector is connected to the negative pole of the car battery, the power conversion device is a DC power boost circuit, connected to the car battery The electric power is converted into a pre-supplied electric power, and the pre-supplied electric power is used to charge the battery device of the agricultural electric tool through the output terminal of the power supply.

Description

Vehicle charger for agricultural electric tools

This creation relates to a DC charging device, in particular to a vehicle charger for agricultural electric tools which is easy to obtain electricity and is convenient to carry and use.

Traditional oil-fired agricultural machines are not only bulky, but must be refilled at any time after the fuel is used up, causing inconvenience in use, and the waste gas and noise generated by the fuel will also cause serious environmental pollution , and it is also quite harmful to the body and mind of the operator, not to mention the maintenance and repair of fuel oil equipment.

Therefore, with the rise of environmental awareness, existing agricultural machinery, such as fuel-fueled lawn mowers, fuel-fueled pesticide sprayers, sprayers, etc., have been gradually replaced by electric lawn mowers and electric pesticide sprayers. Cause environmental pollution, and secondly, also can not endanger the health of the staff, moreover, also needn't carry a large amount of fuel oils for backup.

However, with the popularity of electric agricultural machinery, the problem of power supply is a major obstacle, because when the user needs to work for a long time, the general staff can carry a few more power packs with them, but, Because the price of the power pack is expensive, if you want to increase the number of carrying, you must spend a lot of use costs. Moreover, even if you have carried multiple power packs, once the power of the power pack is exhausted, you still cannot charge it at the operation site. It is really inconvenient for the staff to be far away or in the remote suburbs.

The car charger for agricultural electric tools in this creation uses the power of the car battery to For charging, in addition to easy access to electricity, it can also be used with you, which is quite convenient.

The car charger for agricultural electric tools created in this invention has a fast charging speed because the power conversion device is boosted by a high-power DC-to-DC constant-voltage constant-current step-up module.

Therefore, a car charger for an agricultural electric tool proposed in this creation is connected between a battery device of the agricultural electric tool and a car battery. The car battery has a positive pole and a negative pole, and includes a power conversion device. It has a positive terminal, a negative terminal, and at least one power output terminal, the positive terminal is connected to the positive terminal of the vehicle battery, the negative terminal is connected to the negative terminal of the vehicle battery, and the power conversion device is a DC power booster The electric circuit is connected with the electric power of the automobile storage battery and converted into a pre-supplied electric power, and the pre-supplied electric power is used to charge the battery device of the agricultural electric tool through the output terminal of the power supply.

According to the vehicle charger for agricultural electric tools mentioned above, the power conversion device further has an outer box, a plurality of through holes arranged on the outer box, and a fan group arranged on the outer box, the The DC power boosting circuit is arranged inside the outer box, and the power output terminals are respectively electrically connected to the DC power boosting circuit through a power line.

According to the vehicle charger for agricultural electric tools mentioned above, the power output end of the power conversion device is a 14S-6 military-standard male plug, which is electrically connected to the DC power step-up circuit through a power line, and the The battery device of the agricultural electric tool has a power input socket, and the power input socket is a 14S-6 military standard female connector.

According to the vehicle charger for the agricultural electric tool of the present invention, the agricultural electric tool is an electric sprayer, and the power input socket of the battery device is exposed on the outside of the agricultural electric tool.

According to the vehicle charger for agricultural electric tools mentioned above, the power supply at the power output end of the power conversion device is DC55V to 90V.

According to the vehicle charger for agricultural electric tools mentioned above, the battery There are two power output terminals of the source conversion device.

According to the vehicle charger for agricultural electric tools mentioned above, the battery device of the agricultural electric tools has a rechargeable battery, a power input socket, and a power output socket, and the power output end of the power conversion device is connected to the The power input socket is used to store the pre-supplied power in the rechargeable battery and supply it to the agricultural electric tool through the power output socket.

According to the vehicle charger for agricultural electric tools mentioned above, the battery device of the agricultural electric tools further has a casing, and a main power switch, a primary power switch and a display electrically connected to the rechargeable battery. The input socket, the power output socket, the main power switch, the secondary power switch and the display are all arranged on the casing and exposed outside, and the rechargeable battery is a lithium battery.

According to the vehicle charger for agricultural electric tools mentioned above, the battery device of the agricultural electric tools further has a plurality of hanging ears arranged on the outside of the housing, and a set of straps, the straps are installed on the hanging parts of the housing. Ears are used to carry the battery device, and the agricultural electric tool is an electric lawn mower.

According to the above, the car charger for agricultural electric tools created by this invention uses the power of the car battery for charging. In addition to being easy to get electricity, it can also be used on the go. It is quite convenient, and the power conversion device is made of The high-power DC-to-DC constant-voltage constant-current booster module is used for boosting. The boosting is fast and stable, which can increase the charging speed.

10: Car battery

11: Positive pole

12: negative pole

20: Power conversion device

21: outer box

211: opening

22: Positive terminal

23: Negative terminal

24: Power output terminal

25: DC power boost circuit

26: Through hole

27: Fan group

28: Power cord

29: Power cord

30: battery device

30': battery unit

31: shell

32: rechargeable battery

33: Power input socket

34: Power output socket

341: cover

35: Main power switch

36: secondary power switch

37: display

38: hanging ear

39:Strap

100: Agricultural electric tools

110: power input plug

120: Power input plug

〔Fig. 1〕 is the exterior perspective view of the first preferred embodiment of the car charger of the agricultural electric tool of the present invention.

[Fig. 2] is a perspective view of the appearance, which illustrates that the power conversion device is connected to a car battery.

[Fig. 3] is a block diagram of a circuit.

[FIG. 4] is a plan view illustrating a power output socket of a battery unit.

〔Fig. 5〕 is an appearance stereogram, is the second preferred embodiment of the car charger of the agricultural electric tool of this creation.

[Fig. 6] is a three-dimensional schematic diagram illustrating the power supply usage of an electric lawnmower.

〔Fig. 7〕 is a three-dimensional schematic diagram, is to illustrate the charging usage situation of an electric sprayer.

As shown in [Fig. 1] to [Fig. 3], the first preferred embodiment of the car charger of the agricultural electric tool of the present invention is connected between a battery device 30 of the agricultural electric tool 100 and a car storage battery 10 . The car battery 10 has a positive pole 11 and a negative pole 12 .

The car charger includes a power conversion device 20 . The power conversion device 20 (portable charger) has an outer box 21 , a positive terminal 22 , a negative terminal 23 , and a power output 24 . The positive terminal 22 of the power conversion device 20 is connected to the positive terminal 11 of the vehicle battery 10, and the negative terminal 23 is connected to the negative terminal 12 of the vehicle battery 10. In this embodiment, the positive terminal 22 and the negative terminal 23 are both is a fixture. The power conversion device 20 further has a DC power step-up circuit 25 arranged inside the outer box 21. The DC power step-up circuit 25 receives the electric power of the car battery 10 and converts it into a pre-supplied power. The pre-supplied power DC55V to 90V to supply the battery device 30 . In this embodiment, the DC power boost circuit 25 is a high-power DC-to-DC (DC/DC) constant voltage and constant current boost module, which includes a circuit board, a heat-dissipating aluminum plate, several large capacitors, several It is composed of a transformer, a large inductor, several resistors, and several capacitors. The electric power (DC12V) of the car battery 10 is connected through the positive terminal 22 and the negative terminal 23, and the DC power boost circuit 25 is used to perform a boost drive, so that the power output terminal 24 can output a DC voltage of 55V to 90V . Secondly, the power conversion device 20 has a plurality of through-holes 26 provided on the outer box 21 for heat dissipation, and a plurality of through holes 26 arranged on the outer box 21. One of the openings 211 is the fan group 27, the fan group 27 is corresponding to the above-mentioned heat dissipation aluminum plate, so as to achieve the effect of rapid heat dissipation.

In [ FIG. 1 ] and [ FIG. 2 ], the positive terminal 22 and the negative terminal 23 are electrically connected to the DC power step-up circuit 25 via two power lines 28 . The power output terminal 24 of the power conversion device 20 is a 14S-6 military plug, and is electrically connected to the DC power boosting circuit 25 through a power line 29 . Secondly, the power output end 24 of the power conversion device 20 can also use an air adapter (wire to wire) to match and electrically connect battery devices of different brands, so as to achieve the effect of convenient charging.

And the battery device 30 of this agricultural electric tool 100 has a shell 31, a rechargeable battery 32 installed inside the shell 31, a power input socket 33, a power output socket 34, and the rechargeable battery 32 electrically connected A main power switch 35 , a primary power switch 36 and a display 37 . The power input socket 33, the power output socket 34, the main power switch 35, the secondary power switch 36 and the display 37 are all arranged on the casing 31 and exposed outside, and the rechargeable battery 31 is a lithium battery. In addition, the battery device 30 has a plurality of hanging ears 38 arranged on the outside of the casing 31, and a set of straps 39. The straps 39 are installed on the aforementioned hanging ears 38 for carrying the battery device 30, making it easy to carry OK to use. In this embodiment, the power input socket 33 is a 14S-6 military standard female connector. This power output socket 34 is a model IEC320-C13 socket, and a protective cover 341 needs to be lifted outwards during use, see (Fig. 4).

When in use, the power output terminal 24 of the power conversion device 20 is connected to the power input socket 33, and when the main power switch 35 is turned on, the future pre-supplied power (55V to 90V) is stored in the rechargeable battery 32, and is supplied by the rechargeable battery 32. The power output socket 34 is externally supplied to the agricultural electric tool 100 for use, as [Fig. 6]. And when opening this time power switch 36, this display 37 can show the electric quantity of this rechargeable battery 32, and this display 37 is the seven-segment display (Seven-segment display) of three digits, provides and shows the residual electric quantity of this rechargeable battery 32 , for example: show When "100" is displayed, it means the state of full potential, and when "000" is displayed, it means that the battery is in a state of zero power. The user can timely replenish power according to the display state for backup. Generally speaking, if The display 37 shows numbers below "040", which means the low potential state.

And this main power switch 35 is the master switch of this battery device 30, this main power switch 35 and this secondary power switch 36 are all switched to ON state, the electric power of this rechargeable battery 32 can be supplied and used, or just can be charged. operation; on the contrary, if the main power switch 35 is switched to the OFF state, the battery device 30 will not be able to work, and at the same time provide the function of power-off protection.

As shown in [Fig. 5], the second preferred embodiment of the car charger of the agricultural electric tool of the present creation is connected between a battery device 30 and a car battery 10 of the agricultural electric tool 100. The car charger includes a power conversion device 20 . The feature of the second embodiment is that there are two power output terminals 24 of the power conversion device 20, therefore, two battery devices 30 can be charged simultaneously by the two power output terminals 24 of the power conversion device 20, When the agricultural electric tool is at a distance or in the suburbs for a long time, it can be directly charged on site, which can meet the needs of users. The general structure and usage of the power conversion device 20 of the second embodiment are the same as those of the first embodiment, and will not be repeated here.

As shown in Fig. 6, the agricultural electric tool 100 is an electric lawnmower, and the agricultural electric tool 100 has a power input plug 110. When in use, the power input plug 110 of the agricultural electric tool 100 is inserted into the On the power output socket 34 of the battery device 30, the staff utilizes the strap 39 to carry the battery device 30 on their backs, so that they can easily carry the battery device 30 with them, and supply power to the electric lawn mower, so as to benefit the field Or the convenience when working in remote suburbs.

As shown in [Fig. 7], this agricultural electric tool 100 is a kind of electric sprayer, and this agricultural electric tool 100 has a battery device 30' arranged inside the implement, and a battery device 30' from the electric The battery device 30' extends outward and exposes the power input plug 120 on the outside. When charging is required, the power output end 24 of the power conversion device 20 is inserted into the power input plug 120 of the agricultural electric tool 100, and It can be connected to the electric power of the car battery to supply the electric sprayer, which is convenient for working in other places or in remote suburbs.

In addition, in this invention, the input power of the power conversion device 20 is set between DC12V~24V, and the output power is set between DC36V~90V. In addition, a single voltage can also be limited, for example, if the input power is set at DC48V, then the output power is set between DC48V~55V. Of course, if it is necessary to charge the voltage with other set values, the power supply at the output terminal of the power conversion device 20 must be adjusted before the charging operation can be performed to ensure safe use.

To sum up the above, the car charger of the agricultural electric tool of the present invention utilizes the positive terminal 22 and the negative terminal 23 of the power conversion device 20 (male and female plug structures can also be used) to be connected to the positive pole 11 and the negative pole of the car battery 10. 12, the rechargeable battery 32 can be charged at any time and quickly, and based on the premise that every household has a car, the staff can use the car battery 10 for charging in advance, or can also use the The power conversion device 20 is connected to the car battery 10 to charge the battery device 30. Therefore, when the staff uses an electric lawn mower or an electric sprayer to perform gardening or agricultural work such as weeding and spraying pesticides, if they are in other places or When working in remote places, the battery device 30 can be carried on the body to supply power to the electric lawn mower or electric sprayer, so that the work can be carried out smoothly. The DC/DC constant voltage and constant current step-up module has a fast and stable boost, and the charging process takes about 1.5 hours to fully charge the power from 0% to 100%. Therefore, if the power is insufficient when working in a remote place In some cases, as long as the noon break or driving time is used, the car battery can be connected to supplement the electricity. In this way, not only can the work efficiency be improved, but also the mobility during work can be enhanced.

It is worth mentioning that, because the vehicle charger of the agricultural electric tools created in this invention is Power is supplied by lithium batteries. First, the long-term battery life has the advantage of sufficient and stable power supply. Second, the use of car batteries to supplement power is not only easy to obtain, but also environmentally friendly.

The above are just a few preferred embodiments of this creation, and should not limit the scope of implementation of this creation, that is, all simple equivalent changes and modifications made according to the patent scope of this creation and the new description content, All should still fall within the scope covered by this creation patent.

20: Power conversion device

21: outer box

211: opening

22: Positive terminal

23: Negative terminal

24: Power output terminal

25: DC power boost circuit

26: Through hole

27: Fan group

28: Power cord

29: Power cord

30: battery device

31: shell

32: rechargeable battery

33: Power input socket

34: Power output socket

35: Main power switch

36: secondary power switch

37: display

38: hanging ear

39:Strap

Claims (9)

A vehicle charger for an agricultural electric tool is connected between a battery device of the agricultural electric tool and a car battery, the car battery has a positive pole and a negative pole, and includes: a power conversion device with a positive terminal and A negative terminal, and at least one power output terminal, the positive terminal is connected to the positive pole of the car battery, the negative terminal is connected to the negative pole of the car battery, the power conversion device is a DC power step-up circuit, connected to the The electric power of the car storage battery is converted into a pre-supplied electric power, and the pre-supplied electric power is used to charge the battery device of the agricultural electric tool through the output terminal of the power supply. The vehicle charger for agricultural electric tools as described in Claim 1, wherein the power conversion device further has an outer box, a plurality of through holes arranged on the outer box, and a fan group arranged on the outer box , the DC power boosting circuit is arranged inside the outer box, and the power output terminals are respectively electrically connected to the DC power boosting circuit through a power line. The vehicle charger for agricultural electric tools as described in Claim 1, wherein the power output end of the power conversion device is a 14S-6 military-standard male plug, which is electrically connected to the DC power step-up circuit through a power line, And the battery device of this agricultural electric tool has a power input socket, and this power input socket is a 14S-6 military standard female connector. The vehicle charger for the agricultural electric tool as described in claim 3, wherein the agricultural electric tool is an electric sprayer, and the power input socket of the battery device is exposed on the outside of the agricultural electric tool. The vehicle charger for agricultural electric tools according to claim 1, wherein the power supply at the power output terminal of the power conversion device is DC55V to 90V. The vehicle charger for agricultural electric tools according to claim 1, wherein the power conversion device has two power output terminals. The vehicle charger for agricultural electric tools as described in claim 1, wherein the battery device of the agricultural electric tools has a rechargeable battery, a power input socket, and a power output socket, and the power output terminal of the power conversion device is connected to to the power input socket, so that the pre-supplied power is stored in the rechargeable battery, and supplied to the agricultural electric tool from the power output socket for use. The vehicle charger for agricultural electric tools as described in claim 7, wherein the battery device of the agricultural electric tools further has a casing, and a main power switch, a primary power switch and a display electrically connected to the rechargeable battery, The power input socket, the power output socket, the main power switch, the secondary power switch and the display are all arranged on the casing and exposed outside, and the rechargeable battery is a lithium battery. The vehicle charger for agricultural electric tools as described in claim 8, wherein the battery device of the agricultural electric tools further has a plurality of hanging ears arranged on the outside of the casing, and a set of straps, the straps are mounted on the casing on the hanging ear for carrying the battery device, and the agricultural electric tool is an electric lawn mower.

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