CN209488903U - A kind of plant protection drone distributor plate - Google Patents

Abstract

The utility model discloses a kind of plant protection drone distributor plates, terminal is picked out including distributor plate substrate and the access terminal and multiple groups that are arranged on distributor plate substrate, the distributor plate substrate is multi-layer stacked composite plate, wherein the first conductive layer and the second conductive layer will access terminal respectively and pick out anode and cathode between terminal is conductively connected one by one, the first conductive layer and the second conductive layer are isolated with exterior insulation for one layer of two surface layer setting signals of distributor plate substrate and four layers of signal, two layers and three layers of signal of setting signal between first conductive layer and the second conductive layer, it will be dielectrically separated between first conductive layer and the second conductive layer.The unmanned plant protection electromechanical source distributor plate high temperature resistant of the utility model is simultaneously fire-retardant; enhancing mechanical strength has very strong current-carrying capability simultaneously; reduce distributor plate system consumption; enhance the cruise duration of fog machine; it is easy to maintain; the power supply of efficient stable is provided for the plant protection drone of high-strength working, guarantees that unmanned plane fulfils assignment in high quality.

Description

A kind of plant protection drone distributor plate

Technical field

The utility model belongs to unmanned plane electronic control technology, and in particular to a kind of plant protection drone distributor plate.

Background technique

Due to unmanned plane have it is at low cost, be easy maintenance, the flexible advantages such as good are planted as modern agriculture in recent years The latest development and cutting edge technology of guarantor's technology, unmanned plane low latitude pesticide application technology development prospect are wide.The characteristic of plant protection drone is Heavy load, large volume, high current, operating frequency is high, in this case, the problem quilt in many previous small and medium size unmanned aerial vehicles It is greatly enlarged, such as fever under cruising ability, body vibration, high current etc..Plant protection drone mostly uses greatly lithium battery to carry out The electric current of power supply is supplied to the loads such as electricity tune, water pump and winged control by power supply, distributor plate.But if on delivering path, separated time The impedance of plate is unreasonable, and the fuel factor of electric current is obvious, to influence transmitted size of current.Influence the main of circuit board impedance Factor includes: dielectric constant, dielectric thickness, conductor width, conductor thickness etc..Conductor thickness and conductor width are to influence impedance One of major parameter.The power supply line of existing plant protection drone distributor plate is copper-based using 3oz's, and copper-based thickness is thin so that power supply line Cross-sectional area become smaller.Show that the impedance of power supply line is bigger than normal according to formula R=ρ L/S, so that the fuel factor of power supply is obvious.Power supply Plate generates heat so that its impedance continues to increase, and heating effect of current continues to increase.High temperature influences the electric property of distributor plate, and makes Distributor plate oxidation accelerates, and hardness of distributor plate etc. reduces.The distributor plate heating effect of current of unmanned plane is significant, consumes more batteries Energy reduces the cruising ability of unmanned plane.Particularly with powerful plant protection drone, caused since distributor plate impedance is excessive Influence it is especially serious.

The distributor plate structure of existing unmanned plane, a kind of use as disclosed in the Chinese patent application No. is 201620527437.5 In the high current section board of unmanned plane, for another example a kind of more rotors disclosed in the Chinese patent application No. is 201720596708.7 without Man-machine electric current section board is used using the mechanisms such as regular polygon or round additional fixation hole, and the fixation of distributor plate Hole location is few, and the fixation hole of distributor plate is fixed built on the sand, and the substrate intensity and poor toughness of distributor plate are solid in the case where colliding Determine hole easy fracture, and the angle of the distributor plate of regular polygon is more sharp, the angle easy fracture of distributor plate when colliding.Divide after fracture The copper wire exposure of line plate, influences the electric property of distributor plate.The distributor plate of round additional fixation hole, fixation hole and distributor plate Connection area is small, and the intensity of fixation hole is low, is not able to satisfy the high-intensitive collision of plant protection drone, is easy to influence the complete of distributor plate Whole property, particularly with the big plant protection drone of bearing a heavy burden, as distributor plate impact resistant ability difference and caused by influence it is especially serious. To sum up problem causes tremendous influence to unmanned plane.

Utility model content

The utility model solve the technical issues of be: for existing unmanned plane distributor plate structure plant protection drone work Make under environment the problem that existing intensity is inadequate, electrical connection performance is not high, a kind of a kind of novel plant protection drone point is provided Line plate.

The utility model adopts the following technical solution realizes:

A kind of plant protection drone distributor plate, including distributor plate substrate 1 and the access terminal being arranged on distributor plate substrate 1 2 and multiple groups pick out terminal 3；

The distributor plate substrate 1 is multi-layer stacked composite plate, is from top to bottom followed successively by one layer 11 of signal, the first conductive layer 12, two layer 13 of signal, three layer 14 of signal, the second conductive layer 15 and four layer 16 of signal,

First conductive layer 12 and the second conductive layer 15 will access terminal 2 respectively and pick out anode between terminal 3 and Cathode is conductively connected one by one,

One layer 11 of the signal and four layer 16 of signal two surface layers positioned at distributor plate substrate 1, by 12 He of the first conductive layer Second conductive layer 15 is isolated with exterior insulation,

Two layer 13 of the signal and three layer 14 of signal are led between the first conductive layer 12 and the second conductive layer 15 by first It is dielectrically separated between electric layer 12 and the second conductive layer 15.

Further, first conductive layer 12 and the second conductive layer 15 will be connect on backing material plate by continuously applying copper respectively The anode and cathode for entering terminal 2 and picking out between terminal 3 are conductively connected one by one.

Further, one layer 11 of the signal, two layer 13 of signal, three layer 14 of signal and four layer 16 of signal are all made of insulation Backing material plate.

Further, the surface in one layer 11 of the signal, two layer 13 of signal, three layer 14 of signal and four layer 16 of signal is applied Copper forms printed circuit.

In the present invention, one layer 11 of the signal, the first conductive layer 12, two layer 13 of signal, three layer 14 of signal, second Conductive layer 15 and four layer 16 of signal of backing material plate are all made of FR-5 epoxy resin fiberglass substrate.

Further, one layer 11 of the signal, the first conductive layer 12, two layer 13 of signal, three layer 14 of signal, the second conductive layer It is integrally formed between 15 and four layer 16 of signal by pressing.

Further, the connection mounting hole 17 of perforation distributor plate substrate is evenly distributed on the distributor plate substrate 1, it is described The inner surface of connection mounting hole 17 is embedded in the copper sheathing for compressing 1 closed assembly layer structure of distributor plate substrate.

Further, the distributor plate substrate 1 is polygonal panel, and fillet is arranged in each corner, and the access terminal 2 is located at The center of polygonal panel, each corner location for picking out terminal 3 and being located at polygonal panel.

Further, the access terminal 2 is all made of N-shaped self-clinching nut, the pressure with the anode and cathode terminals for picking out terminal 3 The pin of riveting nut is inserted respectively into 1 inside of distributor plate substrate and corresponding conductive layer contact, and electricity is adjusted peace by self-clinching stud The wiring nose of attaching line connection is crimped on self-clinching nut.

The unmanned plant protection electromechanical source distributor plate of the utility model, distributor plate use six layer structure, and material uses FR-5 grade Material, high temperature resistant are simultaneously fire-retardant.The second, five layers have very strong simultaneously as conductive layer using copper, enhancing mechanical strength is applied entirely Current-carrying capability reduces distributor plate system consumption, enhances the cruise duration of fog machine.Four layer signal layers are used to that conductive layer is isolated, and drop Low EMI.The dismounting for facilitating power supply and electricity to adjust using the connecting terminal that presses, it is easy to maintain.It applies copper fixation hole and facilitates installation point Line plate, and reinforce fuselage.The power supply of efficient stable is provided for the plant protection drone of high-strength working, guarantees that unmanned plane is high-quality Fulfil assignment to amount.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the plant protection drone distributor plate in embodiment.

Fig. 2 is the top view of the plant protection drone distributor plate in embodiment.

Fig. 3 is the cross-section cutaway view of the plant protection drone distributor plate in embodiment.

Fig. 4 is the terminal structure schematic diagram of the quality guarantee unmanned plane distributor plate in embodiment.

Figure label: 1- distributor plate substrate, one layer of 11- signal, the first conductive layer of 12-, two layers of 13- signal, 14- signal three Layer, the second conductive layer of 15-, four layers of 16- signal, 17- connection mounting hole, 2- accesses terminal, and 21- anode accesses terminal, 22- cathode Terminal is accessed, 3- picks out terminal, and 31- anode picks out terminal, and 32- cathode picks out terminal, 301- self-clinching stud, 302- Wiring nose Son, 4- electricity tune install wiring.

Specific embodiment

Embodiment

Referring to Fig. 1 and Fig. 2, the distributor plate in diagram is the preferred embodiment of six rotor plant protection drones, the distributor plate substrate 1 For the multilayer composite sheet of a regular hexagon, it is provided with a group of access terminal 2 and seven groups picks out terminal 3, realize same A power supply at most connects seven groups of electricity tune control circuits of output simultaneously.

In conjunction with Fig. 3, the multilayer composite sheet of the distributor plate substrate 1 of the present embodiment includes six layer structure, is from top to bottom followed successively by One layer 11 of signal, the first conductive layer 12, two layer 13 of signal, three layer 14 of signal, the second conductive layer 15 and four layer 16 of signal.Its In, the first conductive layer 12 and the second conductive layer 15 be will access terminal and pick out the conductive layer of conductive communication between terminal, wherein The anode access terminal 21 for accessing terminal 2 and the anode for picking out terminal 3 are picked out and are led between terminal 31 by first conductive layer 12 The cathode access terminal 22 for accessing terminal 2 and the cathode for picking out terminal 3 are picked out terminal 32 by electrical connection, second conductive layer 15 Between be conductively connected.First conductive layer 12 and the second conductive layer 15 are all made of FR-5 epoxy resin fiberglass substrate as substrate Plate continuously applies copper in backing material plate, and continuous copper-clad will access terminal 2 and pick out anode and cathode between terminal 3 and leads one by one Electrical connection.

One layer 11 of the signal, two layer 13 of signal, three layer 14 of signal and four layer 16 of signal equally use FR-5 asphalt mixtures modified by epoxy resin For rouge glass fibre basal plate as backing material plate, the backing material plate itself has good insulation performance and flame retardant property, wherein the letter A number floor 11 and four floor 16 of signal are located at the upper layer of distributor plate substrate 1, by the first conductive layer 12 and the second conductive layer 15 with Exterior insulation isolation, two layer 13 of the signal and three layer 14 of signal are positioned at the first conductive layer 12 and the second conductive layer 15 between, general It is dielectrically separated between first conductive layer 12 and the second conductive layer 15, avoids contact short circuit occur between two conductive layers.

Distributor plate substrate 1 is also used as the pcb board of plant protection drone simultaneously, in one layer 11 of signal, two layer 13 of signal, letter Surface in number four floor 16 of three floor 14 and signal applies copper and forms printed circuit, and copper is applied on the above signals layer should will avoid connecing Contact the one side of conductive layer, while the thickness for applying copper will be significantly lower than the first conductive layer 12 and the second conductive layer 15.

For example, the first conductive layer 12 and the second conductive layer 15 is copper-based with a thickness of 0.21mm, then one layer 11 of signal, signal It is copper-based with a thickness of 0.035mm on two layer 13, three layer 14 of signal and four layer 16 of signal.Wherein one layer 11 of signal and the first conductive layer The first dielectric layer is formed between 12, and the second dielectric layer, two layer of 13 He of signal are formed between the first conductive layer 12 and two layer 13 of signal Formation third dielectric layer between three layer 14 of signal, three layer 14 of signal the 4th dielectric layer of formation between the second conductive layer 15, second The 5th dielectric layer is formed between conductive layer 15 and four layer 16 of signal.Wherein the first medium thickness and the second dielectric layer, the 4th Jie The dielectric layer formed between conductive layer and insulating layer between electric layer and the 5th dielectric layer, the above medium thickness is identical, third Dielectric layer is the dielectric layer formed between two insulating layers, therefore its dielectric thickness is 6 times of above-mentioned medium thickness.

The present embodiment uses backing material plate of the FR-5 epoxy resin fiberglass substrate as each layer of distributor plate substrate, fire prevention Grade is UL94V0, and highest continuous temperature is up to 170 degrees Celsius, can keep good strength and electrical property at higher temperatures. And FR-5 water absorption rate is almost nil, and in immersion 24, as a child water absorption rate is only 0.09%, the smaller adaptation nothing of thermal expansion coefficient Six stacking installing meters of man-machine distributor plate.One layer 11 of the signal, the first conductive layer 12, two layer 13 of signal, three layer 14 of signal, It can be integrally formed by pressing between two conductive layers 15 and four layer 16 of signal.

It is evenly distributed with the connection mounting hole 17 of perforation distributor plate substrate on the distributor plate substrate 1, connects mounting hole 17 The hexagon side center of distributor plate substrate is set, is fixed as installation of the distributor plate substrate 1 in plant protection drone Hole, while in order to further increase the integral strength of the multilayer distributor plate substrate of pressing and forming, it is described to connect the interior of mounting hole 17 Surface is embedded in the copper sheathing for compressing 1 closed assembly layer structure of distributor plate substrate, can be realized by applying copper by the copper sheathing, as separated time The hardness and mechanical strength of position of opening can be improved in the auxiliary connecting structure of plate substrate, it shall be noted that in the first conductive layer 12 The region for not applying copper is reserved close to the region of connection mounting hole 17 with the second conductive layer 15, avoids copper sheathing by 12 He of the first conductive layer Short circuit connection between on second conductive layer 15.

The access terminal 2 is located at the hexagonal centre position of distributor plate substrate 1, wherein six groups pick out terminal 3 and distinguish position It in each corner location of polygonal panel, can guarantee that on-position is identical to the distance for picking out position in this way, guarantee incoming end The resistance that sub 2 to six groups pick out between terminal 3 is close, and with convenient for corresponding with six groups of rotors of unmanned plane, in addition goes back One group is arranged on distributor plate substrate 1 and spare picks out terminal.In practical application, distributor plate substrate 1 can adjust circuit according to electricity Control the size and require to be set as the polygonal panels of other number of edges, fillet is arranged in each corner, to avoid collision during Stress is concentrated.

In conjunction with referring to fig. 4, the access terminal 2 of the present embodiment and the anode and cathode terminals for picking out terminal 3 are all made of N-shaped and press spiral shell Mother, the pin of the self-clinching nut are inserted respectively into 1 inside of distributor plate substrate and corresponding conductive layer contact, pass through self-clinching stud 301 are crimped on wiring nose 302 on self-clinching nut, pick out each electricity by wiring nose 302 and the electricity of control circuit is adjusted to adjust peace Attaching line 4.

The design process of distributor plate is carried out with the plant protection drone of standard 10kg configuration below.

The plant protection drone power configuration of standard 10kg configuration is motor: Q9XL (8318), electricity are adjusted: high pressure version 80A, paddle: 30 deposit carbon fiber paddle.After installing battery and liquid medicine, the complete machine of six axis unmanned planes is in 36kg-43kg.It is assigned to each motor Pulling force is 6000g to 7166g, for unmanned plane long-time steady operation.The capabilities list for compareing Q9XL motor, when pulling force is 7300g is that the electric current that motor needs is 24A, and the electric current that motor needs are corresponded to when pulling force is 8700g is 32A.To sum up analyze six The power supply distributor plate electric current to be offered of axis plant protection drone is 144A-192A.It is to be offered according to unmanned electromechanical source distributor plate Electric current designs the deposited copper thickness of distributor plate.Currently used is IPC-2221Generic Standards on Printed Board Design is calculated, according to formula:

I=K × T^0.44×A^0.75

K is correction factor, and generally deposited copper takes 0.024 in internal layer, takes 0.048 in outer layer；

T is maximum temperature rise, degrees Celsius (fusing point of copper is 1060 DEG C)；

A is to apply copper area, and unit is square mil；

I is the maximum current allowed, and unit is ampere；

The bus plane of this utility model example power supply distributor plate and stratum all in internal layer, so the correction factor of K take be 0.024.Room temperature is 20 DEG C, and the substrate of distributor plate is using FR-5, and maximum temperature rise can achieve 150 DEG C, so T= 150℃.The side length of this utility model example distributor plate substrate is 10cm=3937mil, and the deposited copper of distributor plate substrate uses 3 big bellys Department, that is, applying copper thickness is 105um=4.134mil.The sectional area for then applying copper is A=3937 × 4.134=16275.558mil².It is comprehensive It is I=0.024 × (150) that upper parameter, which calculates the passable maximum current that continues of this utility model example power supply distributor plate substrate,^0.44 ×(16275.558)^0.75=313.576A > 192A.It can be very good the electric current needs for meeting plant protection drone.

Six groups of M3 self-clinching nuts pick out terminal, and material is that 1.0mm environmental protection brass is tin plating, and the electric current passed through for a long time is 42A > 32A can satisfy the power reguirements of motor.Six groups of M3 self-clinching nuts pick out terminal and are located at hexagon distributor plate substrate Edge, it is directly corresponding with the axis of unmanned plane, it is directly corresponding with motor position, reduce the error probability of installation.14AWG Special soft high temperature resistant silicon tree lace adjusts installation wiring and the welding of M3 cold pressure lines nose that will be mounted on by M3 stud and pick out terminal as electricity Self-clinching nut on, realize that the connection of each motor of power supply distributor plate and rotor is realized and power.M3 is cold-pressed wiring nose and connects For the self-clinching nut of terminal by Stud connection, installation is firm out, and supply current stablizes the dismounting and maintenance for facilitating fog machine.

Access terminal and pick out the self-clinching nut of terminal there are four fixed pin, inserting be fixed on distributor plate substrate with it is right It answers conductive layer contact and is fixed by soldering, the size of pad is 4M × 3M on distributor plate substrate, slightly larger than fixed pin.It will pressure In the hole of the pin insertion distributor plate substrate of riveting nut connecting terminal, left hand holds solder stick, and the right hand holds electric iron, into standby weldering State.It is required that solder horn keeps clean, the oxides such as no welding slag, and one layer of tin is plated on surface.Solder horn connects close to self-clinching nut The pin and pad of line terminals, while heating 1 to 2 seconds.Realize the thermally equivalent of pad and fixed pin.Solder stick is ironed from electricity The opposite contact pad and pin of iron, are careful not to send solder stick on solder horn.When welding wire is melted to it is a certain amount of after, immediately Welding wire is removed to 45 degree of upper left direction.Scolding tin infiltrates entire pad and pin, and the size of scolding tin is 4M × 2M × 2M, and solder joint is full It is mellow and full, electric iron is removed to 45 degree of directions of upper right.Such welding machine guarantees the electric current that each pin of self-clinching nut connecting terminal passes through For 10A, then four feet just reach 40A.

In the hexagon side midpoint of distributor plate substrate, six 3 millimeters of diameter of connection mounting hole, connection peace are set It is 3 millimeters that hole, which is filled, apart from each edge.Connection inner wall of the hole installing has applied the layers of copper that a layer thickness is 105um, protects distributor plate, prevents Only the friction bring of distributor plate is lost in mechanical shock, because the full plate of distributor plate uses the deposited copper of large area, is easy after friction Keep distributor plate short-circuit.The hardness that hole is also further improved after the deposited copper of fixation hole inner wall, improves the mechanical strength of distributor plate substrate, makes The fixation of score line plate is more firm.The distributor plate substrate that debugging is completed is mounted on plant protection drone by 3 millimeters of copper post Fuselage central plate on, the access terminal of distributor plate substrate is connected with the mains, with the electrical characteristic of multimeter detection distributor plate

The advantages of embodiment above describes the basic principles and main features of the utility model and the utility model, current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the concrete operating principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, this reality It will also have various changes and improvements with novel, these various changes and improvements fall within the scope of the claimed invention, this Utility model is claimed range and is defined by the appending claims and its equivalent thereof.

Claims (9)

1. a kind of plant protection drone distributor plate, it is characterised in that: including distributor plate substrate (1) and be arranged in distributor plate substrate (1) access terminal (2) and multiple groups on pick out terminal (3)；

The distributor plate substrate (1) is multi-layer stacked composite plate, is from top to bottom followed successively by one layer of signal (11), the first conductive layer (12), two layers of signal (13), three layers of signal (14), the second conductive layer (15) and four layers of signal (16),

First conductive layer (12) and the second conductive layer (15) will access terminal (2) respectively and pick out between terminal (3) just Pole and cathode are conductively connected one by one,

The signal one layer (11) and four layers of signal (16) are located at two surface layers of distributor plate substrate (1), by the first conductive layer (12) it is isolated with the second conductive layer (15) with exterior insulation,

The signal two layers (13) and three layers of signal (14) are between the first conductive layer (12) and the second conductive layer (15), by It is dielectrically separated between one conductive layer (12) and the second conductive layer (15).

2. a kind of plant protection drone distributor plate according to claim 1, first conductive layer (12) and the second conductive layer (15) respectively on backing material plate by continuously apply copper will access terminal (2) and pick out between terminal (3) anode with cathode one by one It is conductively connected.

3. a kind of plant protection drone distributor plate according to claim 2, one layer of the signal (11), two layers of signal (13), It is all made of insulating substrate plate for three layers of signal (14) and four layers of signal (16).

4. a kind of plant protection drone distributor plate according to claim 3, one layer of the signal (11), two layers of signal (13), Surface in three layers of signal (14) and four layers of signal (16) applies copper and forms printed circuit.

5. a kind of plant protection drone distributor plate according to Claims 2 or 3 or 4, one layer of the signal (11), the first conduction Layer (12), two layers of signal (13), three layers of signal (14), the backing material plate of the second conductive layer (15) and signal four layers (16) is all made of FR-5 epoxy resin fiberglass substrate.

6. a kind of plant protection drone distributor plate according to claim 5, the signal one layer of (11), first conductive layer (12), pass through pressing one between two layers of signal (13), three layers of signal (14), the second conductive layer (15) and four layers of signal (16) Molding.

7. a kind of plant protection drone distributor plate according to claim 6, it is evenly distributed with and passes through on the distributor plate substrate (1) The connection mounting hole (17) of logical distributor plate substrate, the inner surface of connection mounting hole (17) are embedded in distributor plate substrate (1) is folded Fill the copper sheathing that layer structure compresses.

8. a kind of plant protection drone distributor plate according to claim 1, the distributor plate substrate (1) is polygonal panel, respectively Fillet is arranged in a corner, and access terminal (2) is located at the center of polygonal panel, and the terminal (3) that picks out is located at Each corner location of polygonal panel.

9. a kind of plant protection drone distributor plate according to claim 8, access terminal (2) and terminal (3) is picked out Anode and cathode terminals are all made of N-shaped self-clinching nut, the pin of the self-clinching nut be inserted respectively into distributor plate substrate (1) it is internal with it is right Electricity is adjusted the wiring nose of installation wiring connection to be crimped on self-clinching nut by the conductive layer contact answered by self-clinching stud.