CN110809838A

CN110809838A - Adapter, charger and agricultural plant protection machine

Info

Publication number: CN110809838A
Application number: CN201880039887.1A
Authority: CN
Inventors: 徐晖; 李日照
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-02-18
Anticipated expiration: 2038-11-15
Also published as: WO2020097842A1; CN110809838B

Abstract

An adapter, a charger and an agricultural plant protection machine are disclosed, wherein the adapter comprises a shell (1), a positive pin (2), a negative pin (3), a plurality of signal pins (4) and a control circuit (5), wherein the positive pin, the negative pin and the signal pins are arranged on the same side of the shell side by side; the control circuit is arranged in the shell and is respectively and electrically connected with the positive pin, the negative pin and the signal pin; the positive contact pin, the negative contact pin and the signal contact pin are used for being simultaneously connected with external equipment in an inserting manner; the plurality of signal pins comprise a first signal pin (41) and a second signal pin (42), the first signal pin and the second signal pin are arranged at intervals, and the length of the first signal pin is smaller than that of the positive pin, the negative pin and other signal pins except the first signal pin; when the first signal contact pin detects that the external equipment is connected with the first signal contact pin in a plugging mode, the trigger control circuit controls the adapter to output the power supply to supply power to or charge the external equipment.

Description

Adapter, charger and agricultural plant protection machine

Technical Field

The invention relates to the field of chargers, in particular to an adapter, a charger and an agricultural plant protection machine.

Background

When a charger is used for charging a battery of the agricultural plant protection machine or the battery is used for supplying power to a structure (such as a motor, a flight controller and the like) of the agricultural plant protection machine to be powered, the humidity of the environment where the agricultural plant protection machine is located is usually high, so that the requirements on the connection between the charger and the battery and the connection between the battery and the structure to be powered are very high. When the battery is charged by the charger, the battery needs to be connected with a connector of the charger in an inserting manner; when the structure to be powered is powered by the battery, the structure to be powered needs to be connected with the connector of the battery in an inserting manner. If the connection head of the battery and the charger or the connection head of the structure to be powered and the battery are not connected in place, the battery cannot be charged normally, the structure to be powered cannot be powered on to work, and the like; and because the connection is not in place, the contact area between the battery and the connector of the charger and the contact area between the structure to be powered and the connector of the battery are too small, so that the connectors are heated greatly and burnt, and loss is caused to users.

Disclosure of Invention

The invention provides an adapter, a charger and an agricultural plant protection machine.

Specifically, the invention is realized by the following technical scheme:

according to a first aspect of the present invention, there is provided an adapter comprising a housing, a positive pin, a negative pin, a plurality of signal pins, and a control circuit,

the positive contact pin, the negative contact pin and the signal contact pin are arranged on the same side of the shell side by side;

the control circuit is arranged in the shell and is electrically connected with the positive contact pin, the negative contact pin and the signal contact pin respectively;

the positive contact pin, the negative contact pin and the signal contact pin are used for being simultaneously connected with external equipment in an inserting manner;

the plurality of signal pins comprise a first signal pin and a second signal pin, the first signal pin and the second signal pin are arranged at intervals, and the length of the first signal pin is smaller than that of the positive pin, the negative pin and other signal pins except the first signal pin;

when the first signal contact pin detects that the external equipment is connected with the first signal contact pin in a plugging mode, the control circuit is triggered to control the adapter to output a power supply to supply power or charge the external equipment.

According to a second aspect of the present invention, there is provided a charger comprising:

a housing;

the main control board is arranged in the shell;

the power supply connecting end is used for connecting an external power supply, is electrically connected with the main control panel and is positioned outside the shell; and

the adapter is used for connecting a first device to be charged, is detachably and electrically connected with the main control board and is positioned outside the shell;

the adapter comprises a shell, a positive pin, a negative pin, a plurality of signal pins and a control circuit,

According to a third aspect of the present invention, there is provided an agricultural plant protection machine comprising:

a battery; and

the charger is used for connecting the battery and an external power supply and comprises a shell, a main control board arranged in the shell, a power supply connecting end used for connecting the external power supply and an adapter used for connecting a first device to be charged;

the power supply connecting end is electrically connected with the main control board and is positioned outside the shell, and the adapter is detachably and electrically connected with the main control board and is positioned outside the shell;

According to a fourth aspect of the present invention, there is provided a charger comprising:

a housing;

the main control board is arranged in the shell;

the power supply connecting end is used for connecting an external power supply, is electrically connected with the main control panel and is positioned outside the shell;

the connector is used for being detachably connected with a second device to be charged, is electrically connected with the main control board and is positioned outside the shell; and

the adapter is used for connecting a first device to be charged and can be detachably connected with the connector;

the type of the connector is different from that of the adapter;

the connector can be connected with one of the second device to be charged and the adapter at the same time;

when the connector is connected with the adapter and the adapter is connected with a first device to be charged, the adapter is electrically connected with the main control board, so that the external power supply charges the first device to be charged;

when the connector is connected with the second equipment to be charged, the external power supply is used for charging the second equipment to be charged.

According to a fifth aspect of the present invention, there is provided an agricultural plant protection machine comprising:

a battery; and

a charger for connecting the battery and an external power supply;

the charger comprises a shell, a main control board arranged in the shell, a power supply connecting end used for connecting an external power supply, a connector used for detachably connecting a second device to be charged and an adapter used for connecting a first device to be charged,

the power supply connecting end is electrically connected with the main control board and is positioned outside the shell, and the connecting head is electrically connected with the main control board and is positioned outside the shell;

the adapter can be detachably connected with the connector, and the type of the connector is different from that of the adapter;

According to the technical scheme provided by the embodiment of the invention, the length of the first signal contact pin is set to be shorter than the lengths of other contact pins by the adapter provided by the embodiment of the invention, so that when the external equipment is connected with the first signal contact pin in a plugging manner, the external equipment is connected with other contact pins in place, the contact area between the external equipment and the adapter is ensured to be large enough, and the risk of burning the adapter due to the fact that the contact area is too small because the external equipment is not connected in place in a plugging manner is reduced; and, whether external equipment and adapter whether pegging graft and target in place are judged through first signal contact pin detection external equipment with this first signal contact pin plug connection, only when first signal contact pin detects external equipment and this first signal contact pin plug connection, just can trigger control circuit control adapter output power, have guaranteed that adapter and external equipment realize charging or the power supply to external equipment when target in place, have improved the security of charging or supplying power.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

Figure 1 is a perspective view of an adapter in accordance with an embodiment of the present invention;

fig. 2 is a block diagram of an adapter according to an embodiment of the present invention;

figure 3 is a perspective view of the adapter of figure 1 in another orientation;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is another enlarged partial view of FIG. 3;

figure 6 is a perspective view of the adapter of figure 1 in yet another orientation;

FIG. 7 is a perspective view of a charger in one embodiment of the invention;

FIG. 8 is a block diagram of a charger in an embodiment of the invention;

FIG. 9 is a block diagram of a charger in another embodiment of the present invention;

FIG. 10 is a block diagram of an agricultural plant protection machine in an embodiment of the present invention;

fig. 11 is a block diagram of an agricultural plant protection machine according to another embodiment of the present invention.

Reference numerals:

100: a battery; 200: a charger; 300: a structure to be powered; 50: a connector;

10: a housing; 20: a main control board; 30: a power supply connection end; 40: an adapter;

1: a housing; 11: an accommodating groove; 2: inserting a positive pin; 3: inserting a pin into a negative electrode; 4: a signal pin; 41: a first signal pin; 42: a second signal pin; 43: a third signal pin; 44: a fourth signal pin; 5: a control circuit; 6: an insulator; 7: a positioning part; 8: a limiting part; 81: a groove; 9: an adapting section; 91: a positive electrode mating end; 92: a negative electrode adapting end; 93: a signal adapting terminal; 94: and a fixed end.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

The adapter, the charger and the agricultural plant protection machine of the invention are described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.

Example one

With reference to fig. 1 to 4, an adapter 40 according to an embodiment of the present invention may include a housing 1, a positive pin 2, a negative pin 3, a signal pin 4, and a control circuit 5. Wherein, anodal contact pin 2, negative pole contact pin 3 and signal contact pin 4 set up side by side and locate same one side of casing 1, and anodal contact pin 2, negative pole contact pin 3 and signal contact pin 4 of this embodiment are used for with external equipment plug-in connection simultaneously. Control circuit 5 is located in casing 1 to control circuit 5 is connected with positive pin 2, negative pin 3 and signal pin 4 respectively the electricity.

In the present embodiment, the signal pin 4 includes a plurality of signal pins, and referring to fig. 4, the plurality of signal pins 4 may include a first signal pin 41 and a second signal pin 42. The first signal pin 41 and the second signal pin 42 are disposed at an interval, and the length of the first signal pin 41 is smaller than the lengths of the positive pin 2, the negative pin 3, and the other signal pins 4 (including the second signal pin 42) except the first signal pin 41. The corresponding position of the external equipment to be charged or powered is provided with an electric socket hole corresponding to the positive pin 2, the negative pin 3 and the signal pin 4, and when the external equipment is used in particular, the positive pin 2, the negative pin 3 and the signal pin 4 need to be in socket connection with the corresponding electric socket holes in the external equipment. In this embodiment, when the first signal pin 41 detects that the external device is plugged in the first signal pin 41, the trigger control circuit 5 controls the adapter 40 to output power to supply power to or charge the external device. In the embodiment of the present invention, the length of each pin (including the positive pin 2, the negative pin 3, and the signal pin 4) refers to the length of each pin exposed to the outside of the housing 1.

According to the adapter 40 of the embodiment of the present invention, since the length of the first signal pin 41 is set to be shorter than the lengths of other pins (including the positive pin 2, the negative pin 3, and the other signal pins 4 except the first signal pin 41), it can be ensured that when the external device is connected to the first signal pin 41 in an inserting manner, the external device is connected to the other pins in place, so that it is ensured that the contact area between the external device and the adapter 40 is large enough, and the risk of burning the adapter 40 due to the contact area being too small is reduced; and, whether external equipment and adapter 40 are pegged graft in place is judged through first signal contact pin 41 detection external equipment and this first signal contact pin 41 plug connection, only when first signal contact pin 41 detects external equipment and this first signal contact pin 41 plug connection, just can trigger control circuit 5 and control adapter 40 output power, realized charging or power supply to external equipment when having ensured that adapter 40 and external equipment are connected in place, the security that has improved to charge or supply power.

The external device may be a device or a structure that needs to be charged, or may be a device or a structure that needs to be powered. For example, in an embodiment, the external device is a battery of an unmanned aerial vehicle (such as an agricultural plant protection machine), and before charging the battery, the battery needs to be connected to the charger through the adapter 40 of the embodiment, so that the battery is charged through the cooperation of the charger and the external power supply. In this embodiment, the adapter 40 may be a part of the charger, or may be separately provided from the charger.

In another embodiment, the external device is a to-be-powered structure (such as a motor, a flight controller, etc.) of an unmanned aerial vehicle (such as an agricultural plant protection machine), the adapter 40 of the embodiment is an external electrical connector of a battery, and before the to-be-powered structure is powered, the to-be-powered structure is plugged in the adapter 40, so that the to-be-powered structure is powered through the battery, and the to-be-powered structure is powered on and operates.

The lengths of the positive pin 2, the negative pin 3 and the other signal pins 4 except the first signal pin 41 can be designed as required, for example, in an embodiment, the lengths of the positive pin 2, the negative pin 3 and the other signal pins 4 except the first signal pin 41 are equal. In another embodiment, the length of the positive pin 2 is equal to the length of the negative pin 3, and the lengths of the other signal pins 4 except the first signal pin 41 are slightly smaller than the lengths of the positive pin 2 and the negative pin 3, so that the signal pin 4 can be distinguished from the positive pin 2 and the negative pin 3.

In the plurality of signal pins 4 of the present embodiment, each signal pin 4 corresponds to a function, for example, the first signal pin 41 is used to detect whether the external device and the adapter 40 are inserted in place, and the second signal pin 42 is used to transmit data information between the external device and the adapter 40.

The number of the signal pins 4 can be designed according to the functional requirements, and referring to fig. 4, in this embodiment, the plurality of signal pins 4 further includes a third signal pin 43 and a fourth signal pin 44. Of course, the number of the signal pins 4 is not limited to 4, and the number of the signal pins 4 can be increased or decreased according to the functional requirements, and the number of the signal pins 4 is not limited in this embodiment.

The structure of the contact 40 will be further described by taking the example in which the signal pin 4 includes a first signal pin 41, a second signal pin 42, a third signal pin 43 and a fourth signal pin 44.

In this embodiment, the thickness of the signal pins 4 is relatively thin, so as to reinforce the signal pins 4 and prevent abrasion caused by plugging. Referring to fig. 4 again, insulators 6 are respectively disposed between the first signal pin 41 and the second signal pin 42 and between the third signal pin 43 and the fourth signal pin 44 of the present embodiment, and the first signal pin 41 and the second signal pin 42 are respectively connected to both sides of the corresponding insulator 6, and the third signal pin 43 and the fourth signal pin 44 are respectively connected to both sides of the corresponding insulator 6.

The connection mode of each signal pin 4 and the insulator 6 can be designed as required, for example, each signal pin 4 can be connected to the corresponding insulator 6 by an adhesive method, can be embedded in the corresponding insulator 6, and can be connected to the corresponding insulator 6 by other methods. In this embodiment, the two sides of the insulator 6 are respectively provided with an accommodating groove, and the first signal pin 41, the second signal pin 42, the third signal pin 43 and the fourth signal pin 44 are all embedded in the corresponding accommodating grooves.

The material of the insulator 6 can be selected from plastic or gas abrasion-resistant insulating material according to the requirement.

In addition, the shapes of the positive pin 2, the negative pin 3 and the signal pin 4 of the present embodiment can be designed as required, and for the convenience of matching with an external device, the shapes of the positive pin 2, the negative pin 3 and the signal pin 4 of the present embodiment can be designed to be substantially the same. For example, in one embodiment, the positive pin 2, the negative pin 3 and the signal pin 4 are all sheet-like structures, which increases the contact area when each pin is connected with an external device. Optionally, the surfaces of the positive pin 2, the negative pin 3 and the signal pin 4 are parallel to each other, so that external equipment can be conveniently plugged, and the arrangement mode is more attractive. Of course, the surfaces of the positive pin 2, the negative pin 3 and the signal pin 4 may also have a certain inclination angle, and the position relationship among the surfaces of the positive pin 2, the negative pin 3 and the signal pin 4 may be specifically set as required.

In another embodiment, the positive pin 2, the negative pin 3, and the signal pin 4 are all cylindrical or other regular shapes, and the shapes of the positive pin 2, the negative pin 3, and the signal pin 4 can be designed according to the requirement.

Optionally, the size of the whole formed by the first signal pin 41, the second signal pin 42 and the corresponding insulator 6, the size of the whole formed by the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6 are equal to the size of the positive pin 2 and the size of the negative pin 3, so that the structure of the adapter 40 is more attractive, and the electrical plug hole of the external device can be conveniently designed. The following description will be made by taking as an example a structure in which the first signal pin 41, the second signal pin 42 and the corresponding insulator 6 are integrally formed, the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6 are integrally formed, and the positive pin 2 and the negative pin 3 are all in a sheet shape. In this embodiment, the entire first signal pin 41, the entire second signal pin 42 and the corresponding insulator 6, the entire third signal pin 43, the entire fourth signal pin 44 and the corresponding insulator 6 are equal to the lengths of the positive pin 2 and the negative pin 3, and the entire first signal pin 41, the entire second signal pin 42 and the corresponding insulator 6, and the entire third signal pin 43, the entire fourth signal pin 44 and the corresponding insulator 6 are equal to the thicknesses of the positive pin 2 and the negative pin 3.

Of course, in other examples, the whole of the first signal pin 41, the second signal pin 42 and the corresponding insulator 6, and the whole of the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6 are equal to the lengths of the positive pin 2 and the negative pin 3, while the whole of the first signal pin 41, the second signal pin 42 and the corresponding insulator 6, and the whole of the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6, and the thicknesses of the positive pin 2 and the negative pin 3 may be designed to be partially equal or unequal. In still other examples, the whole of the first signal pin 41, the second signal pin 42 and the corresponding insulator 6, the whole of the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6, and the positive pin 2 and the negative pin 3 are equal in thickness, and the whole of the first signal pin 41, the second signal pin 42 and the corresponding insulator 6, the whole of the third signal pin 43, the fourth signal pin 44 and the corresponding insulator 6, and the positive pin 2 and the negative pin 3 may be partially equal or different in length.

In the correlation technique, positive contact pin 2 and negative pole contact pin 3 adjacent setting of adapter 40, the phenomenon of striking sparks takes place easily to

positive contact pin

2 and 3 distances of negative pole contact pin are too close, causes the potential safety hazard. In contrast, in the present embodiment, the positive pin 2 and the negative pin 3 are respectively provided on both sides of the plurality of signal pins 4. Specifically, a plurality of signal contact pins 4 are one row of interval and locate between anodal contact pin 2 and the negative pole contact pin 3, with the design placed in the middle of a plurality of signal contact pins 4, have increased the distance between anodal contact pin 2 and the negative pole contact pin 3, have effectively avoided the risk that positive negative pole struck sparks.

In addition, in the related art, the adapter 40 can be easily used when one of the positive pin 2 and the negative pin 3 is in a problem due to insufficient redundancy of the positive pin 2 and the negative pin 3. In view of this, in the present embodiment, referring to fig. 3, the positive pin 2 includes a plurality of pins, and the negative pin 3 corresponds to the positive pin 2 and also includes a plurality of pins, that is, the number of the negative pins 3 is the same as the number of the positive pins 2. Wherein, a plurality of positive pins 2 are one side that negative pole contact pin 3 was kept away from at signal contact pin 4 to one row interval setting, and a plurality of negative pole contact pins 3 are one side that positive pole contact pin 2 was kept away from at signal contact pin 4 to one row interval setting.

Optionally, the number of the positive pins 2 and the negative pins 3 may be 2, 3, 4, 5 or more, and specifically, the redundancy of the positive pins 2 and the negative pins 3 may be set as required. The adapter 40 of this embodiment includes 3 anodal contact pins 2 and 3 negative pole contact pins 3, uses the form of each 3 contact pins of positive negative pole, has increased the redundancy of positive negative pole, only needs 1

anodal contact pin

2 and 1 negative pole contact pin 3 to use, can guarantee adapter 40 normal use. In one embodiment, the adapter 40 is used to connect the charger and the battery, the maximum current passing through the battery is 45A (amperes), and the maximum current passing through the positive and negative single pins is 60A. The positive and negative poles of this embodiment are 3 contact pins, as long as it is guaranteed that the positive and negative poles have 1 contact pin respectively and can work, then can normally charge the battery, be equivalent to 3 times redundancy.

Further, referring to fig. 1 and 3, the adapter 40 further includes two positioning portions 7 disposed on the housing 1, wherein one of the two positioning portions 7 is disposed on one side of the positive pin 2 away from the signal pin 4 and is spaced apart from the positive pin 2, and the other positioning portion 7 is disposed on one side of the negative pin 3 away from the signal pin 4 and is spaced apart from the negative pin 3. Correspondingly, the corresponding position of external equipment is equipped with two location cooperation portions that correspond two complex of location portion 7, when pegging graft external equipment on adapter 40, two location portion 7 are connected with two location cooperation portions and make external equipment be connected with adapter 40 for each contact pin and the electric mortiser socket stable connection that corresponds, power and signal can stable transmission between external equipment and the adapter 40. The matching mode between the positioning part 7 and the positioning matching part can select the existing fixed connection mode, for example, the positioning part 7 and the positioning matching part can be fixedly matched through a screw, and can also be matched in an inserting way.

It is understood that the number of the positioning portions 7 and the positional relationship between the positioning portions 7 and the respective pins are not limited to those listed above, and may be provided in other forms, specifically, the number of the positioning portions 7 and the positional relationship between the positioning portions 7 and the respective pins may be provided as needed.

In addition, referring to fig. 1 and fig. 3, the adapter 40 of the present embodiment may further include a limiting portion 8 disposed on the housing 1, the limiting portion 8 surrounds a groove 81, the positive pin 2, the negative pin 3 and the signal pin 4 are disposed in the groove 81, on one hand, the groove 81 can limit the connection position between the external device and the adapter 40, and the external device can be connected to the adapter 40 more quickly; on the other hand, the grooves 81 can effectively protect each contact pin, and prevent each contact pin from directly colliding with other parts to be damaged when the adapter 40 is not used. Optionally, in the length direction of each pin, the limiting portion 8 is longer than the length of each pin, so as to effectively protect each pin.

With the continuous update of the charger or the battery, the connector 50 of the charger or the battery is also continuously updated, the connector 50 before the update of the charger or the battery cannot be adapted to the external device adapted to the updated connector 50, and the interoperability is poor. Taking a charger as an example, a charger before updating is called a 1 generation charger, a charger after updating is called a 2 generation charger, a connector 50 of the 1 generation charger is different from a connector 50 of the 2 generation charger, the 1 generation charger can charge a first type of battery but cannot charge a second type of battery, the 2 generation charger can charge a second type of battery but cannot charge the first type of battery, and the interoperability between the 1 generation charger and the 2 generation charger is poor. In this regard, the present embodiment may add the adapter 40 matched with the connector 50 of the 1-generation charger on the basis of the 1-generation charger, and the adapter 40 is adapted to the battery of the second model. When the first type of battery needs to be charged through the 1 generation charger, the first type of battery is directly connected to the connector 50 of the 1 generation charger; when the battery of second model charges through 1 generation charger, be connected adapter 40 with the connector 50 of 1 generation charger, the battery of second model is connected to rethread adapter 40, can realize the function that the battery of 1 generation charger to the second model charges, need not to purchase respectively 1 generation charger and 2 generation chargers to charge respectively the battery of two kinds of models, has reduced user's cost.

Specifically, with reference to fig. 3, fig. 5 and fig. 6, the adapter 40 of the present embodiment may further include an adapting portion 9, where the adapting portion 9 is used for detachably connecting an external connector 50, and a model of the external connector 50 is different from a model of the adapter 40. The adaptation portion 9 is electrically connected with the control circuit 5, and when the external adapter 40 is connected with the adaptation portion 9, the external connector 50 is electrically connected with the adapter 40, so that the compatibility of the product is improved.

In this embodiment, the housing 1 includes a front portion and a side portion, the positive pin 2, the negative pin 3 and the signal pin 4 are disposed on the front portion, the adapter portion 9 is disposed on the side portion, and the adapter 40 can be conveniently connected to the external connector 50 and the external device. Of course, the fitting part 9 may be provided at other positions of the housing 1, and is not limited to the side part.

Furthermore, the side part is provided with an accommodating groove 11, the adaptive part 9 is accommodated in the accommodating groove 11, the adaptive part 9 is effectively protected by the accommodating groove 11, and the connecting position between the external connector 50 and the adaptive part 9 is limited, so that the external connector 50 and the adaptive part 9 can be positioned and connected more quickly.

With reference to fig. 5 and 6, the adapting portion 9 of the present embodiment may include a positive adapting end 91, a negative adapting end 92 and a signal adapting end 93, wherein the positive adapting end 91, the negative adapting end 92 and the signal adapting end 93 are arranged in multiple rows. Correspondingly, the corresponding position of external connector 50 is equipped with positive link, negative link and signal connection end, and positive link and the electricity cooperation of anodal adaptation end 91, negative link and the electricity cooperation of negative pole adaptation end 92, signal connection end and the electricity cooperation of signal adaptation end 93 realize the electricity between external connector 50 and adapter 40 and be connected.

In this embodiment, the adapting portion 9 includes 1 positive pole adapting end 91, 1 negative

pole adapting end

92 and 2 signal adapting ends 93, and 1 positive pole adapting end 91, 1 negative

pole adapting end

92 and 2 signal adapting ends 93 are arranged in two rows, and are arranged at intervals between adjacent adapting ends. Of course, the arrangement of the positive pole adapting end 91, the negative pole adapting end 92 and the signal adapting end 93 and the number of the positive pole adapting end 91, the negative pole adapting end 92 and the signal adapting end 93 can be set to be other.

The structure of anodal adaptation end 91, negative pole adaptation end 92 and signal adaptation end 93 can set up as required, anodal link and anodal adaptation end 91, negative pole link and negative pole adaptation end 92 and signal link and signal adaptation end 93's structure looks adaptation can. For example, in some examples, the positive mating terminal 91, the negative mating terminal 92, and the signal mating terminal 93 are all electrically connected holes, and the positive connection terminal, the negative connection terminal, and the signal connection terminal are all electrically connected pins. In other examples, the positive mating end 91, the negative mating end 92, and the signal mating end 93 are electrical pins, and the positive connection end, the negative connection end, and the signal connection end are electrical sockets.

With further reference to fig. 5 and 6, the adapting portion 9 may further include two fixing ends 94, and the positive adapting end 91, the negative adapting end 92 and the signal adapting end 93 are disposed between the two fixing ends 94. Correspondingly, the corresponding position of external adapter 40 be equipped with two stiff ends 94 correspond two fixed cooperation ends of complex, when being connected external connector 50 with cooperation portion, two stiff ends 94 are connected with two fixed cooperation ends and make external connector 50 be connected with adapter 40 for can be more stable connection between anodal adaptation end 91 and anodal link, negative pole adaptation end 92 and negative pole link and signal adaptation end 93 and the signal connection end, thereby stably transmit power and signal. The engagement between the fixed end 94 and the fixed mating end may be selected from conventional fixed connection methods, such as screw-fastening engagement or plug-in engagement of the fixed end 94 and the fixed mating end.

It is understood that the number of the fixing ends 94 and the positional relationship between the fixing ends 94 and the respective fitting ends (including the positive fitting end 91, the negative fitting end 92 and the signal fitting end 93) are not limited to those listed above, and may be set in other forms, and specifically, the number of the fixing ends 94 and the positional relationship between the fixing ends 94 and the respective fitting portions 9 may be set as required.

The control Circuit 5 of the present embodiment at least includes a processor and a peripheral Circuit cooperating with the processor, the processor may be a single chip microcomputer such as an ARM (Advanced RISC Machines, RISC microprocessors), an AVR (RISC reduced instruction set high speed 8-bit single chip microcomputer), and may also be an ASIC (Application Specific Integrated Circuit) chip.

The adapter 40 of the present embodiment can be used to connect a charger and a battery, and also can be used to connect a battery and a structure to be powered, so as to realize different functions.

It should be noted that the embodiment of the present invention further provides a charger, referring to fig. 7 and 8, the charger 200 includes a housing 10, a main control board 20, a power connection terminal 30, and an adapter 40. The main control board 20 is disposed in the housing 10, the power connection end 30 is used for connecting an external power source, the power connection end 30 is electrically connected to the main control board 20, and the power connection end 30 of the embodiment is located outside the housing 10. The adapter 40 is used to connect a first device to be charged, the adapter 40 of this embodiment is detachably and electrically connected to the main control board 20, and the adapter 40 is located outside the housing 10, and the structure of the adapter 40 may refer to the description of the above embodiments, and is not described herein again.

The main control board 20 of the present embodiment at least includes a processor and a peripheral Circuit cooperating with the processor, the processor may be a single chip microcomputer such as an ARM (Advanced RISC Machines, RISC microprocessors), an AVR (RISC reduced instruction set high speed 8-bit single chip microcomputer), and may also be an ASIC (Application Specific Integrated Circuit) chip.

Further, with reference to fig. 7 and 9, the charger 200 of the present embodiment may further include a connector 50, where a model of the connector 50 is different from a model of the adapter 40. In this embodiment, the connector 50 is electrically connected to the main control board 20, and the connector 50 can be detachably connected to the adapting portion 9 of the adapter 40, which may specifically refer to the description of the adapting portion 9 in the foregoing embodiment, and is not described herein again.

In the present embodiment, the connection head 50 can be connected to one of the second device to be charged and the adapter 9 at the same time. Specifically, when the connector 50 is connected to the adapting portion 9 and the adapter 40 is connected to the first device to be charged, the adapter 40 is electrically connected to the main control board 20, so that the external power supply charges the first device to be charged; when the adapter 40 is connected to the second device to be charged, the external power supply charges the second device to be charged. Charger 200 of this embodiment realizes waiting charging device's the charging to multiple through setting up adapter 40, and charger 200's compatibility is strong, the function is many, the security is strong and the sexual valence relative altitude.

Connector 50 can include body, anodal link, negative pole link and signal connection end, and anodal link, negative pole link and signal connection end are the multirow setting on the body. In this embodiment, the connector 50 includes 1 positive electrode connection end, 1 negative electrode connection end and 2 signal connection ends, and 1 positive electrode connection end, 1 negative electrode connection end and 2 signal connection ends are two rows of settings to the interval sets up between the adjacent connection end. Of course, the arrangement mode among the positive electrode connecting end, the negative electrode connecting end and the signal connecting end and the number of the positive electrode connecting end, the negative electrode connecting end and the signal connecting end can be set to other.

The structure of positive link, negative link and signal connection end can set up as required, for example, in some examples, positive link, negative link and signal connection end are electric contact pin. In other examples, the positive mating end 91, the negative mating end 92, and the signal mating end 93 are all electrical sockets.

In one embodiment, the charger 200 includes 1

connector

50 and 1 adapter 40, and the charger 200 can charge the first device to be charged or the second device to be charged at the same time.

In another embodiment, the charger 200 includes a plurality of connectors 50 and a plurality of adapters 40, and the plurality of connectors 50 and the plurality of adapters 40 are correspondingly matched, so that a plurality of devices to be charged (such as batteries) can be charged at the same time, and the charging efficiency is improved.

In other embodiments, the charger 200 includes a plurality of connectors 50 and at least one adapter 40, and the number of the connectors 50 is greater than the number of the adapters 40, so that a plurality of devices to be charged can be charged simultaneously, and the user requirements are met.

In addition, the embodiment of the invention also provides an agricultural plant protection machine, which comprises a battery 100 and the charger 200 of the embodiment, referring to fig. 10. The charger 200 is used to connect the battery 100 and an external power source, and charges the battery 100. The battery 100 in this embodiment may be a storage battery, or may be another type of battery. In the present embodiment, the battery 100 may supply power to a structure to be powered on the agricultural plant protection machine, such as a motor, a flight controller, and the like.

Referring to fig. 11, the embodiment of the present invention further provides another agricultural plant protection machine, which includes a battery 100, the adapter 40 of the above embodiment, and a structure 300 to be powered. The battery 100 is connected to the structure 300 to be powered through the adapter 40, so as to supply power to the structure 300 to be powered. The battery 100 in this embodiment may be a storage battery, or may be another type of battery. The structure to be powered 300 may include flight controls, motors, and the like. Optionally, in this embodiment, the adapter 40 is a part of the battery 100.

Example two

With the continuous update of the charger, the charger connector 50 is also continuously updated, the charger connector 50 before update cannot be adapted to the battery adapted to the updated charger connector, and the interoperability between products before and after update is poor. The charger before updating is called as a 1 generation charger, the charger after updating is called as a 2 generation charger, a connector 50 of the 1 generation charger is different from a connector 50 of the 2 generation charger, the 1 generation charger can charge the battery of the first model and can not charge the battery of the second model, the 2 generation charger can charge the battery of the second model and can not charge the battery of the first model, and the interoperability between the 1 generation charger and the 2 generation charger is poor.

In view of this, the embodiment of the present invention may add the adapter 40 matched with the connector 50 of the 1 generation charger on the basis of the 1 generation charger, and the adapter 40 is adapted to the battery of the second model. When the first type of battery needs to be charged through the 1 generation charger, the first type of battery is directly connected to the connector 50 of the 1 generation charger; when the battery of second model charges through 1 generation charger, be connected adapter 40 with the connector 50 of 1 generation charger, the battery of second model is connected to rethread adapter 40, can realize the function that the battery of 1 generation charger to the second model charges, need not to purchase respectively 1 generation charger and 2 generation chargers to charge respectively the battery of two kinds of models, has reduced user's cost.

Referring to fig. 7 and 9, a charger 200 according to a second embodiment of the present invention may include a housing 10, a main control board 20, a power connection terminal 30, a connector 50, and an adapter 40. Wherein, the main control board 20 is disposed in the housing 10, the power connection end 30 is used for connecting an external power supply, and the power connection end 30 is electrically connected to the main control board 20, the power connection end 30 of this embodiment is located outside the housing 10, and is conveniently connected to the external power supply.

The connector 50 is used for detachably connecting a second device to be charged, the connector 50 of the embodiment is electrically connected to the main control board 20, and the connector 50 is located outside the housing 10. Adapter 40 is used for connecting the first equipment that needs to charge, and adapter 40 can dismantle with connector 50 and be connected. The type of the connector 50 in this embodiment is different from that of the adapter 40, and the first device to be charged and the second device to be charged may be batteries of different types or other different components.

In the present embodiment, the connection head 50 can be connected to one of the second device to be charged and the adapter 40 at the same time. When the connector 50 is connected with the adapter 40 and the adapter 40 is connected with the first device to be charged, the adapter 40 is electrically connected with the main control board 20, so that an external power supply charges the first device to be charged; when the connector 50 is connected to the second device to be charged, the external power supply charges the second device to be charged. Charger 200 of this embodiment realizes waiting charging device's the charging to multiple through setting up adapter 40, and charger 200's compatibility is strong, the function is many, the security is strong and the sexual valence relative altitude.

The connector 50 may include a body, a positive connection end, a negative connection end and a signal connection end, and the positive connection end, the negative connection end and the signal connection end are all disposed on the body. Adapter 40 includes casing 1, anodal contact pin 2, negative pole contact pin 3 and signal contact pin 4, and anodal contact pin 2, negative pole contact pin 3 and signal contact pin 4 all locate on casing 1. In this embodiment, the arrangement of positive electrode connecting end, negative electrode connecting end and signal connection end on the body is different from the arrangement of positive electrode contact pin 2, negative electrode contact pin 3 and signal contact pin 4 on casing 1, and the equipment of waiting to charge of 50 adaptations of connector is different from the equipment of waiting to charge of adapter 40 adaptations.

Optionally, the positive connecting end, the negative connecting end and the signal connecting end are arranged on the body in multiple rows. Of course, the arrangement of the positive connection end, the negative connection end and the signal connection end on the body is not limited to this arrangement.

Optionally, the positive pin 2, the negative pin 3 and the signal pin 4 are arranged side by side on the same side of the housing 1. It is understood that the arrangement of the positive pin 2, the negative pin 3 and the signal pin 4 on the body is not limited to this arrangement.

The structure of positive link, negative link and signal connection end can be selected as required, and in this embodiment, positive link, negative link and signal connection end are electric contact pin.

The adapter 40 further comprises a control circuit 5 arranged in the housing 1 and an adapting part 9 arranged on the housing 1, wherein the positive pin 2, the negative pin 3, the signal pin 4 and the adapting part 9 are respectively and electrically connected with the control circuit 5. The adaptation portion 9 of this embodiment can be dismantled with connector 50 and be connected, specifically speaking, the positive pole link, the negative pole link and the signal connection end of adaptation portion 9 and connector 50 can be dismantled and be connected. When the adapter 9 is connected to the connector 50, the control circuit 5 is electrically connected to the main control board 20, so that the adapter 40 is electrically connected to the main control board 20.

The structure of the connector 50 of this embodiment is similar to the structure of the connector 50 of the first embodiment, and the structure of the adapter 40 of this embodiment is similar to the structure of the adapter 40 of the first embodiment, and therefore, the description thereof is omitted.

In one embodiment, the charger 200 includes 1

connector

An embodiment of the present invention further provides an agricultural plant protection machine, referring to fig. 10, the agricultural plant protection machine may include a battery 100 and a charger 200, and the charger 200 is used for connecting the battery 100 and an external power source to charge the battery 100. The battery 100 in this embodiment may be a storage battery, or may be another type of battery. In the present embodiment, the battery 100 may supply power to a structure to be powered on the agricultural plant protection machine, such as a motor, a flight controller, and the like.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The adapter, the charger and the agricultural plant protection machine provided by the embodiment of the invention are described in detail, a specific example is applied in the description to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. An adapter is characterized by comprising a shell, a positive pin, a negative pin, a plurality of signal pins and a control circuit,

2. The adapter as claimed in claim 1, wherein the plurality of signal pins further comprises a third signal pin and a fourth signal pin, and the plurality of signal pins are arranged in a row and spaced between the positive pin and the negative pin.

3. The adapter according to claim 2, wherein an insulator is included between the first signal pin and the second signal pin and between the third signal pin and the fourth signal pin; the first signal pin and the second signal pin are respectively connected to two sides of the corresponding insulator, and the third signal pin and the fourth signal pin are respectively connected to two sides of the corresponding insulator.

4. The adapter according to claim 1, wherein the positive pin, the negative pin and the signal pins other than the first signal pin are of equal length.

5. The adapter according to any one of claims 1-4, wherein the positive pin, the negative pin, and the signal pin are each in a sheet configuration.

6. The adapter according to claim 5, wherein the surfaces of the positive pin, the negative pin and the signal pin are parallel to each other.

7. The adapter according to any one of claims 1-4, wherein the positive pin and the negative pin are disposed on opposite sides of the signal pin.

8. The adapter according to claim 7, wherein the positive pin comprises a plurality of positive pins, and the plurality of positive pins are arranged at intervals in a row on a side of the signal pin away from the negative pin;

the negative contact pin with the positive contact pin corresponds, also includes a plurality ofly, and is a plurality of the negative contact pin is one row of interval setting and is in the signal contact pin is kept away from one side of positive contact pin.

9. The adapter according to claim 1, further comprising two positioning portions disposed on the housing, wherein one of the positioning portions is disposed on a side of the positive pin away from the signal pin and spaced apart from the positive pin; and the other positioning part is arranged on one side of the negative pin, which is far away from the signal pin, and is arranged at an interval with the negative pin.

10. The adapter according to claim 1, further comprising a limiting portion disposed on the housing, wherein the limiting portion surrounds a recess, and the positive pin, the negative pin and the signal pin are disposed in the recess.

11. The adapter according to claim 1, wherein the adapter further comprises an adapter portion for detachably connecting an external connector, wherein the external connector is of a different type than the adapter;

the adaptation portion with the control circuit electricity is connected, works as outside adapter with when the adaptation portion is connected, external connection head with the adapter electricity is connected.

12. The adapter of claim 11, wherein said housing includes a front portion and a side portion, said positive pin, said negative pin and said signal pin being disposed on said front portion, said adapter being disposed on said side portion.

13. The adapter according to claim 12, wherein the side portion defines a receiving slot, the adapter portion being received in the receiving slot.

14. The adapter as claimed in any one of claims 11 to 13, wherein the adapter portion comprises a positive adapter end, a negative adapter end and a signal adapter end, the positive adapter end, the negative adapter end and the signal adapter end being arranged in a plurality of rows.

15. The adapter of claim 14, wherein the positive mating end, the negative mating end, and the signal mating end are electrically connected holes.

16. The adapter of claim 14, wherein the adapter portion further comprises two fixed ends, and the positive adapter end, the negative adapter end, and the signal adapter end are disposed between the two fixed ends.

17. A charger, characterized in that the charger comprises:

a housing;

the main control board is arranged in the shell;

18. The charger of claim 17, wherein the plurality of signal pins further comprises a third signal pin and a fourth signal pin, and the plurality of signal pins are arranged between the positive pin and the negative pin in a row at intervals.

19. The charger according to claim 18, wherein an insulator is included between the first signal pin and the second signal pin and between the third signal pin and the fourth signal pin; the first signal pin and the second signal pin are respectively connected to two sides of the corresponding insulator, and the third signal pin and the fourth signal pin are respectively connected to two sides of the corresponding insulator.

20. The charger according to claim 17, wherein the positive pin, the negative pin and the other signal pins except the first signal pin are equal in length.

21. The charger according to any one of claims 17 to 20, wherein the positive pin, the negative pin and the signal pin are each in a sheet-like configuration.

22. The charger of claim 21, wherein the surfaces of the positive pin, the negative pin, and the signal pin are parallel to each other.

23. The charger according to any one of claims 17 to 20, wherein the positive pin and the negative pin are respectively disposed on both sides of the signal pin.

24. The charger according to claim 23, wherein the positive pin comprises a plurality of positive pins, and the plurality of positive pins are arranged at intervals in a row on a side of the signal pin away from the negative pin;

25. The charger of claim 17, wherein the adapter further comprises two positioning portions disposed on the housing, wherein one of the positioning portions is disposed on a side of the positive pin away from the signal pin and spaced apart from the positive pin; and the other positioning part is arranged on one side of the negative pin, which is far away from the signal pin, and is arranged at an interval with the negative pin.

26. The charger of claim 17, wherein the adapter further comprises a limiting portion disposed on the housing, the limiting portion surrounding a groove, the positive pin, the negative pin and the signal pin being disposed in the groove.

27. The charger of claim 17, wherein the adapter further comprises an adapter portion for detachably connecting an external connector, the external connector having a different type than the adapter;

28. The charger of claim 27, wherein the housing includes a front portion and a side portion, the positive pin, the negative pin and the signal pin being disposed on the front portion, and the adapter portion being disposed on the side portion.

29. The charger of claim 28, wherein the side portion is provided with a receiving slot, and the adapter portion is received in the receiving slot.

30. The charger according to any one of claims 27 to 29, wherein the fitting portion includes a positive fitting end, a negative fitting end, and a signal fitting end, the positive fitting end, the negative fitting end, and the signal fitting end being arranged in a plurality of rows.

31. The electrical charger according to claim 30, wherein the positive mating terminal, the negative mating terminal and the signal mating terminal are all electrically connected holes.

32. The charger of claim 30, wherein the adapter further comprises two fixed ends, and the positive adapter end, the negative adapter end and the signal adapter end are disposed between the two fixed ends.

33. The charger of claim 17, further comprising a connector of a different type than the adapter;

the connector is electrically connected with the main control board and can be detachably connected with the adapting part of the adapter;

the connector can be connected with one of the second device to be charged and the adapting part at the same time;

when the connector is connected with the adapting part and the adapter is connected with a first device to be charged, the adapter is electrically connected with the main control board, so that the external power supply charges the first device to be charged;

when the adapter is connected with a second device to be charged, the external power supply is used for charging the second device to be charged.

34. The charger according to claim 33, wherein the connector comprises a body, a positive connection end, a negative connection end and a signal connection end, and the positive connection end, the negative connection end and the signal connection end are arranged on the body in multiple rows.

35. The electrical charger according to claim 34, wherein the positive connection terminal, the negative connection terminal and the signal connection terminal are electrical contact pins.

36. An agricultural plant protection machine, characterized in that, the agricultural plant protection machine includes:

a battery; and

37. The agricultural plant protection machine of claim 36, wherein the plurality of signal pins further comprises a third signal pin and a fourth signal pin, and the plurality of signal pins are arranged between the positive pin and the negative pin at intervals in a row.

38. The agricultural plant protection machine of claim 37, wherein insulators are included between the first signal pin and the second signal pin and between the third signal pin and the fourth signal pin; the first signal pin and the second signal pin are respectively connected to two sides of the corresponding insulator, and the third signal pin and the fourth signal pin are respectively connected to two sides of the corresponding insulator.

39. The agricultural plant protection machine as claimed in claim 36, wherein the positive pin, the negative pin and the signal pins except the first signal pin are equal in length.

40. The agricultural plant protection machine as claimed in any one of claims 36-39, wherein the positive pin, the negative pin and the signal pin are each in a sheet-like configuration.

41. The agricultural plant protection machine of claim 40, wherein the surfaces of said positive pin, said negative pin and said signal pin are parallel to each other.

42. The agricultural plant protection machine as claimed in any one of claims 36-39, wherein the positive pin and the negative pin are respectively disposed on both sides of the signal pin.

43. The agricultural plant protection machine as claimed in claim 42, wherein the positive pins include a plurality of positive pins, and the positive pins are arranged at intervals in a row on one side of the signal pin away from the negative pin;

44. The agricultural plant protection machine of claim 36, wherein said adapter further comprises two positioning portions disposed on the housing, one of said positioning portions being disposed on a side of said positive pin remote from said signal pin and spaced from said positive pin; and the other positioning part is arranged on one side of the negative pin, which is far away from the signal pin, and is arranged at an interval with the negative pin.

45. The agricultural plant protection machine of claim 36, wherein said adapter further comprises a limiting portion disposed on said housing, said limiting portion surrounding a recess, said positive pin, said negative pin and said signal pin being disposed in said recess.

46. The agricultural plant protection machine of claim 36, wherein said adapter further comprises an adapter portion for removably connecting an external connector, said external connector having a different type than said adapter;

47. The agricultural plant protection machine of claim 46, wherein the housing includes a front portion and a side portion, the positive pin, the negative pin and the signal pin being disposed on the front portion, and the adapter portion being disposed on the side portion.

48. The agricultural plant protection machine of claim 47, wherein the side portion is provided with a receiving slot, the adapter portion being received within the receiving slot.

49. The agricultural plant protection machine of any one of claims 46 to 48, wherein the adapter portion includes a positive adapter end, a negative adapter end, and a signal adapter end, the positive adapter end, the negative adapter end, and the signal adapter end being arranged in a plurality of rows.

50. The agricultural plant protection machine of claim 49, wherein the positive mating end, the negative mating end, and the signal mating end are all electrically connected holes.

51. The agricultural plant protection machine of claim 49, wherein said adapter further comprises two fixed ends, said positive adapter end, said negative adapter end and said signal adapter end being disposed between said two fixed ends.

52. The agricultural plant protection machine of claim 36, wherein the charger further comprises a connector, the connector being of a different type than the adapter;

53. The agricultural plant protection machine of claim 52, wherein the connector comprises a body, a positive connection end, a negative connection end and a signal connection end, the positive connection end, the negative connection end and the signal connection end are arranged on the body in multiple rows.

54. The agricultural plant protection machine of claim 53, wherein the positive connection end, the negative connection end and the signal connection end are electrical contact pins.

55. A charger, characterized in that the charger comprises:

a housing;

the main control board is arranged in the shell;

the type of the connector is different from that of the adapter;

56. The charger according to claim 55, wherein the connector comprises a body, a positive connection terminal, a negative connection terminal and a signal connection terminal, the positive connection terminal, the negative connection terminal and the signal connection terminal being disposed on the body;

the adapter comprises a shell, a positive pin, a negative pin and a signal pin, wherein the positive pin, the negative pin and the signal pin are all arranged on the shell;

the arrangement mode of the positive connecting end, the negative connecting end and the signal connecting end on the body is different from the arrangement mode of the positive contact pins, the negative contact pins and the signal contact pins on the shell.

57. The electrical charger according to claim 56, wherein the positive connection terminals, the negative connection terminals and the signal connection terminals are disposed on the body in a plurality of rows.

58. The electrical charger according to claim 57, wherein the positive connection terminal, the negative connection terminal and the signal connection terminal are electrical contact pins.

59. The electrical charger according to claim 56, wherein the positive pin, the negative pin and the signal pin are arranged side by side on a same side of the housing.

60. The charger according to claim 56, wherein the adapter comprises a control circuit disposed in the housing and an adapter portion disposed on the housing, the positive pin, the negative pin, the signal pin and the adapter portion are electrically connected to the control circuit respectively, and the adapter portion is detachably connected to the connector;

when the adaptation portion with when the connector is connected, the control circuit with realize the electricity between the main control board.

61. The electrical charger according to claim 60, wherein the housing comprises a front portion and a side portion, the positive pin, the negative pin and the signal pin are disposed on the front portion, and the adapter portion is disposed on the side portion.

62. The charger according to claim 61, wherein the side portion is provided with a receiving groove, and the fitting portion is received in the receiving groove.

63. An agricultural plant protection machine, characterized in that, the agricultural plant protection machine includes:

a battery; and

a charger for connecting the battery and an external power supply;

64. The agricultural plant protection machine of claim 63, wherein the connector comprises a body, a positive connection end, a negative connection end and a signal connection end, the positive connection end, the negative connection end and the signal connection end being disposed on the body;

65. The agricultural plant protection machine of claim 64, wherein the positive connection ends, the negative connection ends, and the signal connection ends are disposed on the body in a plurality of rows.

66. The agricultural plant protection machine of claim 65, wherein the positive connection end, the negative connection end, and the signal connection end are electrical contact pins.

67. The agricultural plant protection machine of claim 64, wherein the positive pin, the negative pin and the signal pin are arranged side by side on the same side of the housing.

68. The agricultural plant protection machine of claim 64, wherein said adapter includes a control circuit disposed in said housing and an adapter portion disposed on said housing, said positive pin, said negative pin, said signal pin and said adapter portion being electrically connected to said control circuit, respectively, said adapter portion being detachably connected to said connector;

69. The agricultural plant protection machine of claim 68, wherein the housing includes a front portion and a side portion, the positive pin, the negative pin and the signal pin being disposed on the front portion, and the adapter portion being disposed on the side portion.

70. The agricultural plant protection machine of claim 69, wherein the side portion is provided with a receiving slot, the adapter portion being received within the receiving slot.