CN211924030U

CN211924030U - Electric door machine head and electric door

Info

Publication number: CN211924030U
Application number: CN201921507641.0U
Authority: CN
Inventors: 余德君; 陈军; 黄文略
Original assignee: Hongmen Advanced Technology Corp
Current assignee: Hongmen Advanced Technology Corp
Priority date: 2019-09-09
Filing date: 2019-09-09
Publication date: 2020-11-13
Anticipated expiration: 2029-09-09

Abstract

The utility model discloses an electrically operated gate aircraft nose and electrically operated gate, wherein the electrically operated gate aircraft nose includes: the device comprises a base, a battery assembly and a driving mechanism; the base is provided with a mounting part, the mounting part comprises a mounting groove, and the mounting groove is used for inserting and fixing the battery assembly; the driving mechanism is fixedly connected with the base and used for driving the base to move through energy supply of the battery component. Therefore, the battery assembly arranged on the electric door head can directly provide electric energy for the driving mechanism to ensure that the driving mechanism has enough driving force output, so that the electric door can stably operate. Meanwhile, the battery component directly supplies power to the driving mechanism, so that the electric door can be charged by replacing a thin power supply cable, the problem that a thick power supply cable is easy to bend and damage is solved, and the electrical safety of the electric door is improved. And, through fixing battery pack in the mounting groove on the frame, be favorable to the dismantlement when maintaining and repairing to be changed, greatly reduced cost of maintenance.

Description

Electric door machine head and electric door

Technical Field

The utility model relates to an electrically operated gate technical field especially relates to an electrically operated gate machine head and electrically operated gate.

Background

In daily life, various doors are often seen, and electric doors are common. The electric door is widely applied to various districts, institutions, industrial and mining plants, workshops, warehouses, garages and other occasions as a movable enclosing wall due to the characteristic of convenient opening and closing. The electric door mainly comprises a telescopic door body, an electric door head, a control system and the like, wherein the control system controls the electric door head to move so as to drive the telescopic door body to be opened and closed.

At present, the driving motor that electrically operated gate aircraft nose of electrically operated gate used in the market is mostly 220V's alternating current motor, by 220V's alternating current direct drive, and the power supply cable is wired along the flexible door body, is connected the one end and the power supply who sets up in the afterbody stand of this power supply cable, if insert on the socket of 220V commercial power. However, because the electrically operated gate is many in outdoor environment, long-time exposure to the sun and rain drenches and has very high requirement to the insulating parcel material of power supply cable, in addition opens or closes along with the flexible of electrically operated gate for the power supply cable along the wiring of the flexible door body is often folded, the condition such as damage, fracture appears easily, leads to the emergence of electric leakage injury people accident.

In order to solve the potential safety hazard problem existing in high-voltage power supply, a direct-current power supply mode of converting 220V alternating current into 36V direct current and supplying power to a direct-current motor through a power supply cable also exists in the market. However, the electric door is usually adapted to the installed environment, the telescopic stroke of the electric door is very large, so that the power supply cable is long, the voltage in the power supply cable is very easy to gradually decrease along with the increase of the distance when the direct current is used for supplying power, the motor cannot output enough driving force due to insufficient voltage, and the operation of the electric door is unstable; in addition, the dc power supply system generally requires a thick power supply cable, and the thicker the cable, the more likely the cable is to be broken or damaged during bending, which results in poor electrical safety of the electric door.

Disclosure of Invention

The embodiment of the utility model provides an electrically operated gate aircraft nose and electrically operated gate aims at solving the not enough and poor problem of electrical safety nature of current electrically operated gate aircraft nose drive power.

In view of this, the embodiment of the present invention provides in a first aspect an electric door head, including: the device comprises a base, a battery assembly and a driving mechanism;

the base is provided with an installation part, the installation part comprises an installation groove, and the installation groove is used for inserting and fixing the battery component;

the driving mechanism is fixedly connected with the machine base and used for driving the machine base to move through the energy supply of the battery pack.

Further, the mounting groove passes through the buckle to be fixed battery pack specifically includes:

the mounting groove is provided with a clamping groove, and the battery component is provided with a clamping piece;

or the like, or, alternatively,

the mounting groove is provided with a clamping piece, and the battery component is provided with a clamping groove;

or the like, or, alternatively,

the mounting groove is provided with a clamping piece and a clamping groove;

the clamping groove is used for clamping the clamping piece, so that the battery component is fixed in the mounting groove.

Further, if the mounting groove is provided with a clamping groove and the battery component is provided with a clamping piece, the clamping groove is arranged on the inner side or the outer side of the mounting groove, and the clamping piece is arranged on the same side corresponding to the clamping groove;

if the mounting groove is provided with a clamping piece and the battery component is provided with a clamping groove, the clamping groove is arranged on the outer side of the battery component, and the clamping piece is arranged on the mounting groove corresponding to the clamping groove;

if the mounting groove is provided with a buckling part and a clamping groove, the buckling part and the clamping groove are arranged corresponding to two sides of the battery assembly respectively, and when the buckling part is buckled with the clamping groove, the buckling part props against the battery assembly to fix the battery assembly in the mounting groove.

Further, at least one clamping block is arranged on the clamping part and used for clamping and fixing the battery component when the clamping block is attached to the clamping groove;

and, the buckle spare still is equipped with according to the briquetting, according to the briquetting be used for when the atress separating fixture block and draw-in groove for battery pack with the mounting groove separation.

Further, the battery module includes: the battery comprises a battery shell, a battery socket, a battery pack and a battery control board;

the battery control board is electrically connected with the battery socket and the battery pack respectively and is used for controlling the battery pack to charge and discharge through the battery socket;

the battery socket is arranged on the battery shell and comprises a charging jack and a discharging jack;

the charging jack is used for plugging a charging cable so as to charge the battery pack through the charging cable;

the discharging jack is used for being connected with a discharging cable in an inserted mode, so that discharging energy supply is conducted to the driving mechanism through the discharging cable.

Further, the power door head further includes: a main control panel;

the main control board is respectively connected with the charging cable and the discharging cable and is connected to the battery socket through the charging cable and the discharging cable;

a main discharge cable is arranged between the main control board and the driving mechanism, so that the driving mechanism is electrically connected with the battery assembly through the main control board;

the main control board is used for controlling the operation of the driving mechanism;

wherein the main control board controlling the operation of the driving mechanism includes:

and controlling the battery assembly to discharge electricity to the driving mechanism through the main discharge cable.

Further, if the battery socket is a three-hole socket, the charging cable and the zero line end of the discharging cable are combined and connected, so that the battery pack is charged or discharged to the driving mechanism through the three-hole socket.

Further, the battery pack further includes: a heating device and a temperature sensor;

the battery pack comprises a plurality of groups of battery cores, the heating device is arranged between the adjacent battery cores and is electrically connected with the battery control board, and the heating device is used for heating the plurality of groups of battery cores;

the temperature sensor is electrically connected with the battery control board and used for detecting the temperature of the battery pack, and the heating device is started by the battery control board when the temperature value detected by the temperature sensor is lower than a preset temperature value.

Further, the heating device comprises a flexible film heating device.

Further, the main control board is mounted on the mounting portion.

Further, the installation department includes the installation face, the installation face is used for installing the main control board.

Further, the installation department includes mounting groove and installation face, the mounting groove is used for the ann to insert and fix battery pack, the installation face is used for the installation the master control board.

Further, the mounting surface is arranged on the outer side surface of the mounting groove.

A second aspect of the embodiment of the present invention provides an electric door, including a door body, and further including an electric door head as described in the first aspect, wherein a main charging cable is disposed in the door body, and the main charging cable is used for connecting with the main control board so as to charge the battery assembly through the main control board;

and the wire thickness of the main charging cable is smaller than that of the main discharging cable.

According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:

the embodiment of the utility model provides an in, through the battery pack who sets up in this electrically operated gate aircraft nose, can directly provide the electric energy to actuating mechanism and ensure this actuating mechanism and have sufficient drive power output for this electrically operated gate operates steadily. Meanwhile, the battery component directly supplies power to the driving mechanism, so that the electric door can be charged by replacing a thin power supply cable, the problem that a thick power supply cable is easy to bend and damage is solved, and the electrical safety of the electric door is improved. And, fix battery pack on the frame of electrically operated gate aircraft nose through the mounting groove, be favorable to the dismantlement when maintaining and examining and change, greatly reduced cost of maintenance.

Drawings

In order to more clearly illustrate embodiments of the present invention or solutions in the prior art, one or more embodiments are exemplarily described below with reference to the accompanying drawings, which do not constitute a limitation of the embodiments, wherein elements having the same reference numerals are denoted by similar elements, unless otherwise specified, and the drawings are not to scale.

FIG. 1 is a schematic view of one embodiment of a power door handpiece;

FIG. 2 is a schematic view of one embodiment of a mounting portion;

FIG. 3 is a schematic view of one embodiment of a battery assembly and mounting groove latch;

FIG. 4 is an enlarged schematic view of a half-section of a battery assembly at a snap-fit location with a mounting groove;

fig. 5 is an exploded view of a battery assembly;

FIG. 6 is a schematic wiring diagram of a battery plug;

FIG. 7 is a schematic view of one embodiment of a drive mechanism;

FIG. 8 is a side schematic view of a drive configuration;

FIG. 9 is a bottom schematic view of the drive mechanism;

FIG. 10 is a schematic view of one embodiment of a main control board;

FIG. 11 is a schematic view of one embodiment of a heating device;

FIG. 12 is a functional block diagram of the power door;

FIG. 13 is a schematic diagram of one embodiment of a battery management circuit;

FIG. 14 is a schematic view of one embodiment of a temperature control module;

FIG. 15 is a schematic circuit diagram of a temperature control module;

FIG. 16 is a schematic diagram of one embodiment of a protection module;

fig. 17 is a schematic circuit diagram of the protection module.

Description of reference numerals:

the electric door comprises an electric door head 100, a machine base 10, a battery component 20, a driving mechanism 30, a main control panel 40 and a limit navigator 50;

the mounting part 110, the mounting groove 111, the mounting surface 112, the slot 1111 and the extrusion strip 1112;

the fastener 21, the battery shell 22, the battery socket 23, the battery pack 24, the battery control board 25, the battery plug 26, the fixture block 211, the pressing block 212, the socket mounting opening 221, the heating device 241 and the temperature sensor 242;

driving

mechanisms

310 and 320, driving

motors

311 and 321, driving

wheels

312 and 322, a chain 330, a connecting shaft 340 and a rotating bearing 350;

a control panel front cover 41;

a battery management circuit 250;

a temperature control module 251, a power failure detection module 252, a protection module 253;

a sampling unit 2511, a temperature control unit 2512, a heating start unit 2513;

the protection chip 2531, the battery overcharge protection unit 2532, the battery overdischarge protection unit 2533, the overcurrent protection unit 2534 and the balancing unit 2535.

Detailed Description

The embodiment of the utility model provides an electrically operated gate aircraft nose and electrically operated gate through fixing the battery pack at the mounting groove, can solve the not enough and poor problem of electrical safety of electrically operated gate aircraft nose drive power of current electrically operated gate to be favorable to battery pack's dismouting to be maintained.

In order to facilitate understanding of the technical solutions of the present invention, the technical solutions of the present invention are described in more detail below with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "front", "rear", "left", "right", "inner", "outer", "bottom", "top", and the like used in the present specification indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "at least one" means one or more unless specifically limited otherwise.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the prior art, except most of electrically operated gate that adopt 220V alternating current power supply, there is the direct current motor that the electrically operated gate of fractional portion adopted 36V safe voltage power supply on the market, through install the power adapter additional in the stand of electrically operated gate end connection, convert 220V's alternating current into 36V's direct current, the rethread power supply cable provides the direct current motor power supply to this potential safety hazard that avoids adopting high voltage power supply to exist. However, in this solution, since the output power of the motor is generally about 500W, if only a safe voltage of 36V is used for power supply, in order to ensure the output power of the motor, the current in the power supply cable will reach more than 20A, which requires a thicker power supply cable to match the power supply of the motor, not only is the production and installation costs high, but also the voltage drop across the power supply cable is significant.

Therefore, the utility model provides an improvement scheme, through the battery pack who sets up the battery that is connected with actuating mechanism in the electrically operated gate aircraft nose department at the electrically operated gate, because battery pack is adjacent with this actuating mechanism, sets up the inside at the electrically operated gate aircraft nose in the lump. When the battery assembly provides electric energy for the driving mechanism, namely, the driving mechanism is subjected to direct current power supply, the voltage drop caused by the fact that the driving mechanism is too far away from the power adapter can be avoided, and the output power of the driving mechanism is effectively guaranteed. Moreover, the battery assembly can store electric energy, so that the power supply cable arranged in the door body of the electric door can adopt a thinner cable, the requirement of charging the battery assembly is met, and the electric door is lower in cost and more resistant to bending.

For the convenience of understanding, the specific structure of the electric door head of the electric door in the embodiment of the present invention is described below, please refer to fig. 1, and an embodiment of the electric door head 100 in the embodiment of the present invention includes:

a frame 10, and a battery pack 20 and a driving mechanism 30 mounted on the frame 10.

The driving mechanism 30 includes a pair of driving

mechanisms

310 and 320 symmetrically disposed on two sides of the base 10, and the pair of driving

mechanisms

310 and 320 can be powered by the battery assembly 20 to drive the base 10 to move back and forth in the moving direction, so as to drive the door body of the electric door to open or close.

And a mounting portion 110 may be provided on the housing 10 between the pair of driving

mechanisms

310 and 320. As shown in fig. 2, the mounting portion 110 may have a mounting groove 111, and the battery assembly 20 is inserted into the mounting groove 111, so that five surfaces of the battery assembly 20 can be fixed, and loosening or falling off of the battery assembly 20 due to shaking during the moving process of the electric door head 100 is reduced. Taking the orientation shown in fig. 1 as an example, the inner wall of the mounting groove 111 can abut against the front, rear, left, right and bottom surfaces of the battery assembly 20, thereby fixing the battery assembly 20.

Specifically, as shown in fig. 3, the battery assembly 20 may be further fixed to the mounting groove 111 by a snap-fit manner, for example:

in the first mode, a clamping groove 1111 is arranged in the mounting groove 111, and a fastener 21 is arranged on the battery assembly 20;

in this embodiment, the locking groove 1111 may be disposed inside the mounting groove 111, and the corresponding locking member 21 may be disposed between the inside of the mounting groove 111 and the battery pack 20. The fastener 21 and the battery assembly 20 are inserted into the mounting groove 111, and the battery assembly 20 is fixed by fastening the fastener 21 and the slot 1111.

Or, the clamping groove 1111 may also be disposed at an outer side of the mounting groove 111, and when the battery assembly 20 is correspondingly inserted into the mounting groove 111, the fastening member 21 may extend out of the outer side of the mounting groove 111, and is fastened and fixed with the clamping groove 1111 at one side.

In the second mode, the fastener 21 is disposed in the mounting groove 111, and the slot 1111 is disposed in the battery pack 20;

in this embodiment, the locking groove 1111 may be provided on the outer surface of the battery pack 20, and the locking member 21 may be provided in the mounting groove 111, so that the battery pack 20 may be fixed by the locking member 21 provided in the mounting groove 111. For example: the locking groove 1111 is disposed on the top or the side of the battery assembly 20, so that the locking member 21 disposed on the mounting groove 111 can extend to the top or the side of the battery assembly 20 and be locked with the locking groove 1111.

In a third mode, a clamping groove 1111 and a clamping piece 21 corresponding to the clamping groove 1111 are arranged in the mounting groove 111;

in this manner, two opposite sides of the mounting groove 111 may be respectively provided with a clamping groove 1111 and a fastening member 21, when the battery assembly 20 is inserted into the mounting groove 111, the clamping groove 1111 and the fastening member 21 may sandwich the battery assembly 20, the fastening member 21 may extend to the clamping groove 1111 to be fastened with the clamping groove 1111, and the body of the fastening member 21 may abut against the battery assembly 20 to fasten the battery assembly 20 inside the mounting groove 111.

It should be understood that the above is an illustration of fixing the battery assembly 20 and the mounting groove 111 by means of a snap, however, the illustration is not exhaustive, and all technical solutions based on the inventive concept should belong to the scope of the present invention.

The embodiment of the utility model provides an in, through the built-in battery pack 20 of electrically operated gate aircraft nose 100, this battery pack 20 can directly provide the electric energy to actuating mechanism 30 to guarantee this actuating mechanism 30's output, make this electrically operated gate operate steadily. And, be equipped with an installation department 110 on this frame 10, have a mounting groove 111 in it, buckle 21 through setting up on battery pack 20 and the lock of the draw-in groove 1111 that sets up on mounting groove 111, realize fixing battery pack 20 buckle on frame 10 of electrically operated gate aircraft nose 100, the dismouting when greatly having made things convenient for the later stage to electrically operated gate aircraft nose 100 maintains and overhauls is changed, has reduced cost of maintenance.

The following description specifically describes the above manner in which the snap-in groove 1111 is disposed inside the mounting groove 111 and the snap-in member 21 is disposed on the battery assembly 20, but the present invention should not be limited thereto.

Referring to fig. 2 to 4, an embodiment of the mounting portion 110 according to the embodiment of the present invention includes:

a concave mounting groove 111 and a card slot 1111 disposed at both sides of the concave mounting groove 111 and protruding upward.

Correspondingly, the battery assembly 20 is provided with fasteners 21 at the left and right sides thereof for engaging the engaging grooves 1111 at the two sides of the mounting groove 111. It is understood that the left and right sides of the battery assembly 20 may be the narrower ends of the battery assembly 20.

Preferably, the fastener 21 may be a strip fastener, and one end of the fastener corresponding to the slot 1111 is a fastening end for fastening with the slot 1111; the other end is a fixed end for fixedly connecting with the surfaces of the left and right sides of the battery assembly 20. It is understood that the fixing end of the fastener 21 can be fixed at the bottom of the left and right sides of the battery assembly 20, and the fastening end extends to the top of the battery assembly 20 and extends away from the surface of the battery assembly 20 to the direction of the fastening groove 1111 to fasten the fastening groove 1111.

As shown in fig. 4, a latch 211 may be disposed at the holding end, and the latch 211 may limit the movement of the holding end when the holding end is engaged with the slot 1111, so as to support the battery assembly 20 in the mounting groove 111. Of course, a plurality of locking blocks 211 may also be disposed at the locking end, the plurality of locking blocks 211 may be arranged along the locking end toward the fixed end, and a plurality of locking structures engaged with the plurality of locking blocks 211 may be disposed in the corresponding locking groove 1111, which is not limited herein.

It should be understood that the holding end of the locking member 21 can be elastically deformed from the fixed end, and the end of the holding end can extend out of the slot 1111 to form a pressing block 212. When the battery pack is pressed by a force, the pressing block 212 can make the holding end of the locking member 21 approach to the surface of the left side or the right side of the battery pack 20, so that the locking block 211 arranged at the holding end is separated from the locking groove 1111, and further the battery pack 20 is separated from the mounting groove 111, for example, the battery pack 20 is pulled out upwards along the protruding direction of the locking groove 1111. When the battery assembly 20 is installed, the battery assembly 20 can naturally slide into the installation groove 111 along the clamping groove 1111, the fastening members 21 located at two sides of the battery assembly 20 can be elastically deformed by the gravity or the artificial thrust of the battery assembly 20, and the fastening block 211 arranged at the fastening end of the fastening member 21 is embedded into the clamping groove 1111 to complete the fastening.

Through the mode, the battery assembly 20 can be conveniently disassembled and assembled, and the working time cost during maintenance is greatly saved.

It should be noted that the concave mounting groove 111 may be wrapped around the bottom of the battery pack 20, and fixed to the battery pack 20 from five sides, i.e., front, back, left, right, and bottom. As shown in fig. 2, a plurality of pressing strips 1112 may be distributed on the inner surface of the concave mounting groove 111 to increase the pressing force on the front, rear, left and right surfaces of the battery assembly 20, thereby reducing the occurrence of damage caused by the looseness of the battery assembly 20 and shaking and collision in the mounting groove 111.

It should be noted that, the mounting groove 111 may also be provided with a clamping groove 1111 only on one side, that is, the battery assembly 20 is provided with a fastening member 21 only on one side, and the battery assembly 20 is fixed in the mounting groove 111 by fastening the fastening member 21 and the clamping groove 1111.

The embodiment of the utility model provides an in insert when battery pack 20 and put in mounting groove 111, through holding fixture block 211 that this buckle 21 held the department setting in the card, set up draw-in groove 1111 block with this mounting groove 111 both sides, can realize battery pack 20's quick fixation. And through applying force to the pressing block 212 arranged at the clamping end of the clamping part 21, the clamping block 211 is separated from the clamping groove 1111, so that the battery assembly 20 can be quickly disassembled, and the installation and replacement are greatly facilitated.

For further detailed description of the embodiment of the present invention, the battery assembly 20 in the embodiment of the present invention is described below. Referring to fig. 5, an embodiment of the battery assembly 20 according to the present invention includes:

latch 21, battery housing 22, battery receptacle 23, battery pack 24, and battery control board 25.

Taking the example that the fasteners 21 are disposed on the left and right sides of the battery assembly 20, the fasteners 21 may be integrally formed with the battery housing 22, and the inside of the battery housing 22 may form a mounting cavity for mounting the battery pack 24 and the battery control board 25.

To further facilitate the installation and removal of the battery assembly 20, a battery receptacle 23 may be provided on the battery housing 22, and the battery receptacle 23 may be electrically connected to the battery pack 24 through the battery control board 25 to charge the battery pack 24. Of course, the battery control board 25 can also control the battery pack 24 to discharge power to the driving mechanism 30 through the battery socket 23, so that the driving mechanism 30 can operate to drive the door handle 100 to move.

Specifically, the battery case 22 may be provided with a socket mounting hole 221, and the battery socket 23 may be mounted on the socket mounting hole 221, penetrate the battery case 22 and connect the inside and the outside of the battery case 22. The battery receptacle 23 may be fixed by screws, and a charging jack and a discharging jack may be provided in the battery receptacle 23, and a charging cable may be connected to the charging jack to charge the battery pack 24 through the charging cable. The discharge jack may be connected to a discharge cable through which the battery pack 24 may be discharged to the drive mechanism 30.

It should be understood that the charging cable may be connected to a power adapter installed in the pillar at the tail of the power door, and may be used to transmit a safe voltage converted from 220V mains power by the power adapter, which may be ac or dc. It will be appreciated that the above-mentioned safe voltage is a safe extra-low voltage (voltage not exceeding 42V, no load not exceeding 50V, and isolated from the grid) complying with 3.4.2 of GB 4706.1-2005.

Taking direct current under safe voltage as an example, compared with the current market which transmits direct current of 20A or more for ensuring the output power of the motor, the current power supply cable (equivalent to a charging cable) mostly adopts a cable with a cross section of 2mm²And the thicker cable above, but in the embodiment of the present invention, the charging cable connected to the charging jack of the battery socket 23 may be a thinner cable with a smaller cross section, for example, 0.75mm in cross section²The reason for this is that it is only necessary to charge the battery pack 24 connected to the charging jack of the battery receptacle 23. It will be appreciated by those skilled in the art that the thinner the cable, the more resistant it is to bending, and therefore the longer the life of the charging cable, and the thinner the cable, the lower the cost, using 0.75mm for the power door²The cable can effectively reduce the cost in production and expand the competitive advantage.

Of course, in order to ensure the output power of the driving mechanism 30, the battery pack 24 discharges and supplies power to the driving mechanism 30 through a discharge cable connected with a discharge jack in the battery socket 23, and the discharge cable can use a section of 2mm²Or 2mm²Above (e.g. 6 mm)²) The thick cable of (2) to output a large current of 20A or more to the drive mechanism 30. Since the driving mechanism 30 and the battery pack 24 are located on the same base 10 of the power door head 100 and are adjacent to each other, the thick cable used does not increase the cost and does not affect the total production cost.

In a preferred embodiment, the battery receptacle 23 can be designed as a three-hole receptacle to accommodate plugs used in the normal market and to further reduce cost, in which case the charging cable and the discharging cable can be combined to use a battery plug 26 for plugging with the three-hole receptacle. As shown in fig. 6, the phase terminal of the charging cable is L1, the phase terminal of the discharging cable is L2, and the neutral terminals N of the charging cable and the discharging cable can be connected to form a single neutral terminal N, so as to reduce the number of the jacks of the battery socket 23, and the battery socket 23 does not need to be designed and produced separately, which increases additional cost. Meanwhile, the matching connection between the battery socket 23 and the battery plug 26 is more stable than the conventional elastic electrode connection, which can effectively avoid unstable connection caused by the shake of the electric door drawn by the electric door head 100 during the traveling process, and especially can effectively protect the connection between the battery socket 23 and the battery plug 26 when the battery pack 24 outputs a high-power current to the driving mechanism 30 through the battery socket 23.

In an alternative embodiment, the battery pack 24 may also be directly connected to the commercial power through the charging jack of the battery socket 23, that is, a charging cable connected to the battery socket 23 is directly connected to the commercial power, so as to charge the battery pack 24 with 220V ac without voltage conversion by a power adapter. It is understood that when the battery pack 24 is charged with 220V ac power, a voltage converter (not shown) may be further disposed in the battery assembly 20, and the voltage converter may convert the 220V ac power into a charging voltage suitable for the battery pack 24, and the converted charging voltage depends on the type of the battery pack 24, and is not limited herein.

In the embodiment of the present invention, the battery assembly 20 and the driving mechanism 30 are disposed on the frame 10 of the electric door head 100, and the battery socket 23 is disposed on the housing of the battery assembly 20, which not only facilitates the detachment of the battery assembly 20 through the battery socket 23, but also only needs to pull out the battery plug 26 and press the fastener 21, and the installation is not performed; further, the battery socket 23 can also charge the battery pack 24 in the battery assembly 20 and discharge the driving mechanism 30, so that the voltage drop caused by the driving mechanism 30 being too far away from the power adapter is avoided, and the output power of the driving mechanism 30 can be ensured. In addition, a thin charging cable is used between the battery socket 23 and the power adapter, and a thick discharging cable is used between the battery socket 23 and the driving mechanism 30, so that charging with a small current and outputting of a large current can be realized, the output power of the driving mechanism 30 is ensured, the charging cable is more resistant to bending, and the production cost is reduced.

On the other hand, in conjunction with the above-mentioned embodiments shown in fig. 1 to fig. 6, in the embodiment of the present invention, the electric door includes but is not limited to a rail type and a trackless type, and for convenience of description, the driving mechanism 30 is described below from the perspective of the trackless electric door, but it should not constitute a limitation to the embodiment of the present invention.

Referring to fig. 7 to 9, an embodiment of the driving mechanism 30 according to the embodiment of the present invention includes:

a pair of driving

mechanisms

310 and 320 symmetrically disposed at two sides of the machine base 10, wherein the driving mechanism 310 includes a driving motor 311 and at least one driving wheel 312, and the driving mechanism 320 includes a driving motor 321 and at least one driving wheel 322.

For simplicity of description, the driving mechanism 310 is described as an example. In the drive mechanism 310, the drive motor 311 may directly or indirectly drive the at least one drive wheel 312. When the at least one driving wheel 312 is directly driven, the at least one driving wheel 312 is a driving wheel 312, and the driving wheel 312 can be directly connected to the rotating shaft of the driving motor 311 and rotated by the rotation of the driving motor 311. When indirectly driven, the at least one driving wheel 312 may be one or more, and the driving motor 311 may be rigidly connected to the at least one driving wheel 312 through a gear connection, or the driving motor 311 may be flexibly connected to the at least one driving wheel 312 through a chain, a belt, etc.

As shown in fig. 8, in a preferred embodiment, the at least one driving wheel 312 may be two driving wheels 312, the two driving wheels 312 may be connected with the driving motor 211 by a chain 330, and the two driving wheels 312 may be respectively disposed at both sides of the driving motor 211 to tension the chain 330 in a triangular shape. The chain 330 and the driving wheel 312 can be connected by a gear plate coaxially sleeved on the connecting shaft 340 connected to the driving wheel 312, and the chain 330 is connected to the gear plate, so that the driving wheel 312 provided at one end of the connecting shaft 340 is driven to rotate by the chain 330.

As shown in fig. 9, at least two rotating bearings 350 may be disposed at the bottom of the machine base 10 for the connecting shaft 340 connected to each driving wheel 312, and the at least two rotating bearings 350 may be matched to fix the other end of the connecting shaft 340, so that the connecting shaft 340 may drive the driving wheel 312 disposed at one end thereof to rotate independently. The driving wheels 312 and the driving wheels 322 on the two sides of the machine base 10 are controlled independently, and the automatic deviation rectifying function of the electric door machine head 100 is realized by using the rotating speed difference of the driving wheels 312 and the driving wheels 322 on different sides.

In addition, a limit navigator 50 may be disposed on the base 10 at the front end of the power door head 100 of the trackless power door as shown in fig. 7, and by uniformly embedding magnets in the running direction of the trackless power door in advance, the strength of a guidance signal of a magnet magnetic field received by the limit navigator 50 is used to determine whether the trackless power door deviates from a track. Of course, in some embodiments, the trackless electrically operated gate may also be navigated by other ways, such as laser guidance, infrared guidance, radar guidance, ultrasonic guidance, wired guidance, wireless guidance, geomagnetic guidance, inertial guidance, etc., and this is only described in a magnet guidance manner, but should not be construed as limiting the embodiments of the present invention.

It should be noted that the driving motor 311 and the driving motor 321 may be dc motors to obtain dc power from the battery assembly 20. The dc motor includes a dc brush motor and a dc brushless motor, and the dc brushless motor is preferred in this embodiment. A speed reduction mechanism may be provided between the driving motor 311 and the chain 330, and a speed reduction mechanism may be provided between the driving motor 321 and the other chain 330 to increase the torque to the driving

wheels

312 and 322 by the speed reduction mechanism. The speed reduction mechanism includes, but is not limited to, a spur gear speed reduction mechanism, a bevel gear speed reduction mechanism, a worm gear speed reduction mechanism, and the like. The embodiment of the utility model provides an optimization straight gear reduction gears to reduce the expense in this reduction gears part.

The embodiment of the utility model provides an in, through a pair of

drive structure

310 and 320 that set up in frame 10 both sides, can drive this electrically operated gate aircraft nose 100 and pull the door body of electrically operated gate, reduced the ground requirement to electrically operated gate installation place simultaneously. Moreover, the two driving wheels 312 included in the driving structure 310 and the two driving wheels 322 included in the driving structure 320 can form two groups of driving wheels in tandem, which can ensure the smooth running of the power door head 100 in the traction process. The chain driving used in the driving mechanism 310 and the driving mechanism 320 can reduce the influence of environmental factors such as gravel, dust and the like, and ensure the normal operation of the electric door head 100.

In some embodiments of the present invention, a main control board 40 may be further disposed in the electric door head 100 to control the battery assembly 20 and the driving mechanism 30. Referring to fig. 1 to 10, an embodiment of the main control board 40 of the present invention includes:

a mounting groove 111 and a mounting surface 112 may be provided in the mounting portion 110 of the housing 10, the mounting groove 111 may be used for mounting and fixing the battery pack 20, and the mounting surface 112 may be used for mounting and fixing the main control board 40.

Specifically, the mounting surface 112 may be an outer surface on the side of the mounting groove 111, which can be used to mount the main control board 40, the main control board 40 being disposed opposite to the battery pack 20. Preferably, as shown in fig. 10, the battery module 20 is shaped like a rectangular parallelepiped, and the mounting surface 112 may be an outer side surface of the mounting groove 111 on the longer side of the battery module 20, and the main control board 40 is disposed opposite to the longer side of the battery module 20.

The main control board 40 and the battery assembly 20 can be connected through a charging cable and a discharging cable, that is, the main control board 40 can be connected with the battery socket 23 through the battery plug 26 combining the charging cable and the discharging cable, so as to achieve the purpose of being connected with the battery assembly 20.

When the main control board 40 is connected to the battery assembly 20 to control the charging and discharging of the battery assembly 20, the main control board 40 can be additionally arranged in the tail upright post of the electric door through a main charging cableThe installed power adapter is connected with the power adapter and used for transmitting the safety voltage converted by the power adapter; the main control board 40 may also be connected to the driving mechanism 30 through a main discharge cable. It will be appreciated that the main charging cable may be a thin cable (e.g. 0.75 mm) of small cross-section²A cable of a cross section) to enhance bending resistance, the main discharge cable may be a thicker cable (e.g., 2 mm) having a larger cross section²A cross-sectional cable) to output a large current.

It should be understood that the main control board 40 may have various interfaces, including but not limited to an interface for connecting a charging cable and a discharging cable (i.e. connecting the battery pack 20), an interface for connecting a main charging cable (i.e. connecting a power adapter), an interface for connecting a main discharging cable (i.e. connecting the driving mechanism 30), an interface for connecting the position-limiting navigator 50, an interface for connecting an LED (Light Emitting Diode) display screen, an interface for connecting a position-limiting switch, an interface for connecting an infrared collision avoidance device, an interface for connecting an anti-climbing device, an interface for connecting an alarm device, and the like. It should also be understood that the main control board 40 may be provided with corresponding chips, components, and the like for the above cables, devices, and the like, and is not limited herein.

In a preferred embodiment, the main charging cable for transmitting a safe voltage (e.g., 36V) is connected to the main control board 40 for convenient connection, and the main control board 40 can directly output to the battery pack 20 without any processing to charge the battery pack 24 in the battery pack 20. That is, the interface of the main control board 12 connected to the main charging cable may be directly connected to the interface connected to the charging cable.

In one embodiment of the battery assembly 20, when the battery pack 24 is charged with 220V ac power, the voltage converter may be disposed on the main control board 40 or connected to the main control board 40, so that the charging voltage converted by the voltage converter is transmitted to the battery assembly 20 through the main control board 40, and the main control board 40 may also be directly output to the battery assembly 20 without any processing.

In another preferred embodiment, to further facilitate the maintenance and disassembly, the mounting portion 110 and the housing 10 may be designed to be separated, and the mounting portion 110 is fixed to the housing 10 by screws. That is, the main control board 40 and the battery pack 20 mounted on the mounting portion 110 can be removed or mounted.

In another preferred embodiment, as shown in fig. 10, in order to reduce the influence of dust, water drops, etc. on the main control board 40, a control board front cover 41 may be provided on the main control board 40, which may enclose the main control board 40 between the control board front cover 41 and the mounting surface 112 of the mounting portion 110. The control panel front cover 41 and the mounting surface 112 of the mounting portion 110 may also be fixedly connected by a snap-fit manner, which is not limited herein.

In the embodiment of the present invention, in the electric door head 100, the frame 10 is equipped with the installation portion 110, the installation portion 110 includes the mounting groove 111 and the installation face 112, the mounting groove 111 is used for installing and fixing the battery pack 20, the installation face 112 is used for installing the main control panel 40, the installation face 112 set up in the outside of mounting groove 111. Through setting up main control board 40 and battery pack 20 in the lump in installation department 110 on frame 10, set up this main control board 40 and battery pack 20 adjacent, can reduce unnecessary and walk the line and arrange, make things convenient for the later stage to overhaul.

In some embodiments of the present invention, in combination with the embodiments shown in fig. 1 to 10, in view of the high energy density, long service life and wide application of lithium batteries, the battery pack 24 in the battery assembly 20 may preferably adopt a battery pack composed of lithium batteries, for example, a 18650 type lithium battery, so as to reduce the production cost of the battery part. However, the lithium Battery itself has a defect of low temperature tolerance, and therefore, in a System composed of the lithium Battery, a Battery Management System (BMS) sets a requirement that the charging temperature of the lithium Battery is not lower than 0 ℃, and stops charging the lithium Battery when the Battery temperature is lower than 0 ℃, so that the charging efficiency in a low-temperature environment is greatly reduced.

For this reason, for the electric door disposed in the outdoor environment, the embodiment of the present invention may further be provided with a heating device 241 in the battery assembly 20 inside the electric door head 100, so as to heat the battery pack 24 in the battery assembly 20. Referring to fig. 11, another embodiment of the battery assembly 20 according to the present invention includes:

as shown by the dotted lines in fig. 11, the heating device 241 may be disposed between the side-by-side battery cells in the battery pack 24, which may be a conventional 18650 type lithium battery.

Specifically, the heating device 241 may be a flexible film heating device, and the flexible film heating device may be proximate to the adjacent battery cells in the battery pack 24, so as to increase the effective heating area and improve the heating efficiency of the battery pack 24.

It is understood that the battery pack 24 may include a plurality of sets of battery cells, and two sets of battery cells arranged side by side are illustrated in fig. 11, but should not be construed as limiting the embodiments of the present invention. The battery pack 24 may also include a group of battery cells or three or more groups of battery cells side by side, or may also include three or more groups of battery cells side by side, and the flexible film heating devices may be adjacent to the plurality of groups of battery cells, which is not limited herein.

As shown in fig. 12, the heating device 241 can be connected to the battery control board 25 and can be turned on or off under the control of the battery control board 25. Also, a temperature sensor 242 may be provided in the battery pack 20, the temperature sensor 242 may be provided near the battery pack 24, and the temperature sensor 242 may be connected to the battery control board 25 as well. The temperature sensor 242 can feed back a temperature signal to the battery control board 25 in real time, and when the temperature sensor 242 detects that the temperature value of the battery pack 24 is lower than a preset temperature value (e.g. 0), the battery control board 25 can receive the fed back temperature signal and start the heating device 241 to heat the battery pack 24, thereby ensuring the charging efficiency of the battery pack 24.

Alternatively, the preset temperature value may be 5 ℃, which may prevent the temperature value detected by the temperature sensor 242 from having an error, and the heating device 241 may start to heat the battery pack 24 when the temperature is 0 ℃ within an error range by setting the preset temperature value of 5 ℃.

Of course, another preset temperature value, for example a value of 65 ℃, can also be set in the battery control board 25. It can cut off the current input to the battery pack 24 when the battery pack 24 reaches 65 deg.c, protecting the battery pack 24, the battery control board 25, etc. in the battery assembly 20 from high temperature damage.

The embodiment of the utility model provides an in, through heating device 241 and the temperature sensor 242 that set up in this battery pack 20, can carry out the normal charging under the auxiliary heating guarantee low temperature environment to this group battery 24, make the normal operating of this electrically operated gate simultaneously. And can also prevent the battery pack 24 from having too high temperature, cut off the input of the charging current through the battery control board 25 and carry on the cooling protection to the battery pack 24.

As will be described below with reference to a specific circuit embodiment, it is understood that the battery control board 25 of the main control board 40 is provided with a battery management circuit 250, i.e., a battery management system BMS main control board 40, in order to control charging and discharging of the battery pack 24 and control of the heating device 241. The battery management circuit 250 is described in detail below with reference to specific embodiments. It should be noted that, in some embodiments, the battery management circuit 250 may also be integrated in the main control board 40.

Referring to fig. 13-15, in one embodiment of the battery management circuit 250:

the battery management circuit 250 may include a temperature control module 251, which in turn may include a sampling unit 2511, a temperature control unit (2512/U1), and a heat activation unit 2513.

Wherein the temperature control unit (2512/U1) has a plurality of inputs and a plurality of outputs; the sampling end of the sampling unit 2511 is connected with the temperature sensor 242, and the output end of the sampling unit 2511 is connected with the temperature control unit (2512/U1); one output end of the temperature control unit (2512/U1) is connected with the control end of the heating starting unit 2513, and the heating starting unit 2513 is connected in a loop formed by the discharging anode P + of the battery management circuit 250, the heating device 241 and the discharging cathode CH-of the battery management circuit 250.

Specifically, the temperature control unit (2512/U1) may be implemented by a single chip microcomputer of type HT66F002, which has a plurality of I/O ports, and receives the real-time temperature of the rechargeable point battery collected by the sampling unit 2511 through the temperature control unit (2512/U1), and when the temperature value received by the temperature control unit (2512/U1) is lower than a preset value, the battery management circuit 250 is controlled to start the heating start unit 2513, so as to turn on a loop formed by the discharging positive electrode P + of the battery management circuit 250, the heating device 241, and the discharging negative electrode CH-of the battery management circuit 250, and the heating device 241 is charged and can heat, so that the temperature of the battery pack 24 rises.

It is understood that the preset value can be set according to actual requirements, and is not limited herein.

In this embodiment, as shown in fig. 15, the temperature sensor 242 may be a thermistor NTC, the sampling unit 2511 is connected to the thermistor NTC to form a voltage dividing circuit, and the voltage divided by the thermistor NTC is transmitted to the temperature control unit (2512/U1).

The sampling unit 2511 may include a resistor R31, a resistor R29, and a capacitor C12, wherein one end of the resistor R31 is connected to an output terminal of the temperature control unit (2512/U1) and one end of the capacitor C12, and the other end of the resistor R31 is connected to one end of the thermistor NTC and one end of the resistor R29. The other end of the capacitor C12 is connected with the other end of the thermistor NTC, and the other end of the resistor R29 is connected with one input end of a temperature control unit (2512/U1).

In this embodiment, the thermistor NTC may be a negative temperature coefficient thermistor NTC, that is, the resistance of the thermistor NTC increases when the temperature decreases, the resistance of the thermistor NTC decreases when the temperature increases, and the capacitor C12 plays a role in filtering, so as to prevent other signals from interfering with the sampling result. When the temperature control unit (2512/U1) starts the temperature detection function, the PA1 pin is controlled to output a high level of 5V to the resistor R31, and the resistor R31 and the thermistor NTC form a voltage division circuit. At this time, when the temperature of the battery pack 24 decreases, the resistance value of the thermistor NTC increases, that is, the divided voltage across the thermistor NTC increases. The thermistor NTC can transmit voltage to the PA7 pin of the temperature control unit (2512/U1), i.e., the PA7 pin of the temperature control unit (2512/U1) is boosted through the resistor R29. Accordingly, as the temperature of the battery pack 24 increases, the voltage at the PA7 pin of the temperature control unit (2512/U1) will decrease.

In this embodiment, the temperature of the battery pack 24 can be determined by determining the magnitude of the voltage value of the PA7 pin. The determination is made by the sampling unit 2511 converting the temperature value sampled by the temperature sensor 242 (thermistor NTC) into a corresponding voltage value.

Further, referring to fig. 15, the heating start unit 2513 includes a switching tube assembly composed of a plurality of switching tubes connected to each other, the switching tube assembly has a control end and two output ends, the control end of the switching tube assembly is connected to an output end of the temperature control unit (2512/U1) as the control end of the heating start unit 2513, and the two output ends of the switching tube assembly are connected to a loop composed of the discharging anode P + of the battery management circuit 250, the heating device 241 and the discharging cathode CH-of the battery management circuit 250.

The heating start unit 2513 may be a switching tube assembly composed of a transistor Q9, a MOS transistor Q10 and a MOS transistor Q16, wherein a base of the transistor Q9 is connected to an output terminal of the temperature control unit (2512/U1) through a resistor R27, an emitter of the transistor Q9 is grounded, a resistor R28 is further connected between the base and the emitter of the transistor Q9, and a collector of the transistor Q9 is connected to a gate of the MOS transistor Q10 and a gate of the MOS transistor Q16 through one end of the resistor R33; the source of the MOS transistor Q10 is connected with the positive discharge electrode P + of the battery management circuit 250, the drain of the MOS transistor Q10 is connected with the drain of the MOS transistor Q16, and the source of the MOS transistor Q16 is connected with the negative discharge electrode CH-of the battery management circuit 250 through the heating device 241. And a voltage regulator ZD3 and a resistor R32 are connected between the discharge positive electrode P + of the battery management circuit 250 and the gates of the two MOS transistors (Q10, Q16).

In this embodiment, the transistor Q9 is preferably an NPN transistor, and the MOS transistor Q10 and the MOS transistor Q16 are preferably P-type MOS transistors.

When the voltage value of the PA7 pin of the temperature control unit (2512/U1) is increased to the internal preset value, namely the temperature of the battery pack 24 is reduced to the preset value, the temperature control unit (2512/U1) controls the PA2 pin thereof to output a high level, the high level is preferably 5V, and the corresponding triode Q9 is conducted. The levels of the gate of the MOS transistor Q10 and the gate of the MOS transistor Q16 are pulled low by the resistor R33, and the MOS transistor Q10 and the MOS transistor Q16 are both turned on. The circuit formed by the positive discharging electrode P + of the battery management circuit 250, the heating pipe and the negative discharging electrode CH-of the battery management circuit 250 is conducted, the battery pack 24 supplies power to the heating device 241 through the battery management circuit 250, and the heating device 241 can be heated after being electrified.

In the embodiment, the voltage regulator ZD3 is used to stabilize the voltage value between the positive discharge electrode P + and the negative discharge electrode CH-of the battery management circuit 250, and the resistor R27, the resistor R28, the resistor R33 and the resistor R32 all have a current limiting function.

Of course, when the voltage value of the PA7 pin of the temperature control unit (2512/U1) is not increased to its internal preset value, that is, the temperature of the battery pack 24 is not decreased to the preset value, the temperature control unit (2512/U1) controls the PA2 pin to continuously output a low level, preferably 0V, and the transistor Q9, the MOS transistor Q10 and the MOS transistor Q16 are all kept in a closed state. Accordingly, the circuit formed by the positive discharge electrode P + of the battery management circuit 250, the heating tube, and the negative discharge electrode P-of the battery management circuit 250 is not conducted, and the heating device 241 does not heat.

In the present embodiment, since the lowest temperature of the battery pack 24 in the discharging state is lower than the lowest temperature in the charging state, the lowest temperature in the charging state is usually set to the low-temperature preset value, and it is possible to set to heat the battery pack 24 only in the charging state, so that it is possible to ensure that the electric quantity of the battery is not consumed during heating.

Further, referring to fig. 13 and fig. 15, the battery management circuit 250 further includes a power-off detection module 252, an input end of the power-off detection module 252 is connected to the charging positive electrode P +, the charging negative electrode CH-of the battery management circuit 250, and an output of the power-off detection module 252 is used as a power-off indication of the power adapter. When the output of the power-off detection module 252 is at a high level, indicating that the power adapter is in a power-off state, and when the output is at a low level, indicating that the power adapter is in a power-on state; or when the output of the power-off detection module 252 is at a high level, the power adapter is indicated to be in a power-on state, and when the output is at a low level, the power adapter is indicated to be in a power-off state.

In this embodiment, the power adapter is indicated to be in a power-off state when the output of the power-off detection module 252 is at a high level, and the power adapter is indicated to be in a power-on state when the output of the power-off detection module 252 is at a low level. The output of the power failure detection module 252 can be connected to the pin PA5 of the temperature control unit (2512/U1), and whether the power adapter has abnormal power failure or damage or the like can be judged by judging the level output by the pin PA5 of the temperature control unit (2512/U1).

Specifically, referring to fig. 15, the power-off detection module 252 includes a transistor Q8, a transistor Q11, a resistor R26, a resistor R25, a resistor R34, a resistor R37, a resistor R35, and a resistor R38. The emitter of the triode Q8 is connected with the charging anode P + of the battery management circuit 250, the charging cathode CH-of the battery management circuit 250 is connected with the base of the triode Q8 through a resistor R26, a resistor R25 is connected between the base and the emitter of the triode Q8, and the collector of the triode Q8 is connected with the base of the triode Q11 through a resistor R34. The emitter of the triode Q11 is grounded, the collector of the triode Q11 is connected with a power supply through a resistor R37, a resistor R35 is connected between the emitter and the base of the triode Q11, the collector of the triode Q11 is connected with one end of a resistor R38, and the other end of the resistor R38 serves as the output end of the power-off detection module 252 and is connected with a PA5 pin of a temperature control unit (2512/U1).

In this embodiment, the transistor Q8 is preferably a PNP transistor, and the transistor Q11 is preferably an NPN transistor.

When the power adapter supplies power normally, the base of the triode Q8 is pulled down to low level by the charging negative electrode CH-of the battery management circuit 250, the triode Q8 is turned on, the base of the triode Q11 is pulled up to high level at this time, the triode Q11 is also turned on, and the pin PA5 of the temperature control unit (2512/U1) outputs low level at this time because the emitter of the triode Q11 is grounded. When the power adapter is powered off, the triode Q8 is turned off, the base of the triode Q11 is pulled low to low level, the triode Q11 is also turned off, and the pin PA5 of the temperature control unit (2512/U1) is connected to the power supply through the resistor R37 and the resistor R38 to output high level.

Therefore, the judgment of the PA5 pin of the temperature control unit (2512/U1) can be used to judge whether the power adapter supplies power normally or not, and can be used as one of the judgment conditions for starting the heating device 241.

Further, referring to fig. 13, 16 and 17, the battery management circuit 250 further includes a protection module 253, and the protection module 253 includes a protection chip (2531/U3), a battery overcharge protection unit 2532 and a battery overdischarge protection unit 2533.

The input end of the protection chip (2531/U3) is connected with the positive and negative poles of each battery cell in the battery pack 24, and the output end of the protection chip (2531/U3) is connected with the control ends of the battery overcharge protection unit 2532 and the battery overdischarge protection unit 2533 respectively. The battery overcharge protection unit 2532 is connected in a charge circuit of the battery pack 24, and the battery overdischarge protection unit 2533 is connected in a discharge circuit of the battery pack 24. The protection chip (2531/U3) can detect the voltage of each battery cell, and when the voltage of any battery cell is higher than a first threshold value, the protection chip (2531/U3) controls the battery overcharge protection unit 2532 to disconnect the charging loop of the battery pack 24; when the voltage of any battery cell is lower than a second threshold value, the protection chip (2531/U3) controls the battery over-discharge protection unit 2533 to disconnect the discharge loop of the battery pack 24.

In this embodiment, the protection chip (2531/U3) is preferably a battery protection chip (2531/U3) of type SH 367007.

In the charging and discharging process of the battery pack 24, in order to prevent the overcharge condition of the battery, when the voltage of the battery cell reaches a first threshold value, the battery cell is considered to be fully charged, and a charging loop of the battery pack 24 is disconnected, so that safety accidents such as explosion and the like caused by overcharge of the battery pack 24 are prevented; in the discharging process of the battery pack 24, in order to prevent the over-discharge condition of the battery, when the voltage of any battery cell is lower than the second threshold, the electric quantity of the battery cell is considered to be discharged, and the discharging loop of the battery pack 24 is disconnected, so that the battery damage caused by the over-discharge condition of the battery pack 24 is prevented, and the service life of the battery pack 24 is effectively prolonged.

In this embodiment, the first threshold is typically 4.2V, and the second threshold is typically 2.7V.

Specifically, referring to fig. 16 and 17, the battery overcharge protection unit 2532 and the battery overdischarge protection unit 2533 are sequentially connected between the charging cathode CH of the battery management circuit 250 and the ground, the common terminal between the battery overcharge protection unit 2532 and the battery overdischarge protection unit 2533 is further connected to the discharging cathode P of the battery management circuit 250, the battery overcharge protection unit 2532 may include a MOS transistor Q15, a resistor R54, a resistor R55 and a diode D6, and the battery overdischarge protection unit 2533 may include a MOS transistor Q13, a resistor R48 and a resistor R46.

The grid electrode of the MOS tube Q15 is connected with the CHG pin of the protection chip (2531/U3) through a resistor R54, the source electrode of the MOS tube Q15 is connected with the discharging cathode CH of the battery management circuit 250 through a diode D6, a resistor R55 is further connected between the grid electrode and the source electrode of the MOS tube Q15, and the drain electrode of the MOS tube Q15 is connected with the drain electrode of the MOS tube Q13 and is commonly connected with the discharging cathode P-of the battery management circuit 250. The gate of the MOS transistor Q13 is connected with the DSG pin of the protection chip (2531/U3) through a resistor R48, a resistor R46 is also connected between the gate and the source of the MOS transistor Q13, and the source of the MOS transistor Q13 can be grounded.

In this embodiment, N-type MOS transistors are preferably used for the MOS transistors Q15 and Q13.

When the protection chip (2531/U3) detects that the voltage of any battery cell reaches a first threshold value, the CHG pin of the protection chip (2531/U3) is controlled to output a low level, so that the MOS transistor Q15 is disconnected, and accordingly, a charging loop is disconnected. When the protection chip (2531/U3) detects that the voltage of any battery cell is lower than the first threshold value, the DSG pin of the protection chip (2531/U3) is controlled to output a low level, so that the MOS transistor Q13 is disconnected, and the corresponding discharge loop is disconnected. In this embodiment, the battery overcharge protection unit 2532 and the battery overdischarge protection unit 2533 can be used to monitor the electric quantity of the battery pack 24 during the charging process and the discharging process.

Further, referring to fig. 16 and 17, the protection module 253 further includes a current over-detection unit 2534, and an output terminal of the current over-detection unit 2534 is connected to the protection chip (2531/U3). When the battery pack 24 is in a charging state, the current excessive detection unit 2534 is connected in a charging loop of the battery pack 24; when the battery pack 24 is in a discharge state, the current excessive detection unit 2534 is connected in a discharge circuit of the battery pack 24.

Specifically, the current overload detection unit 2534 may include a sampling resistor R36, a resistor R41, a resistor R45, and a capacitor C14, wherein the sampling resistor R36 is connected between the source of the MOS transistor Q13 and ground, the resistor R41, the capacitor C14, and the resistor R45 are sequentially connected to two ends of the sampling resistor R36, and two ends of the capacitor C14 are connected to the protection chip (2531/U3).

The voltage values at two ends of the sampling resistor R36 are transmitted to the protection chip (2531/U3) for judgment in the charging process or the discharging process, so that whether the current in the charging process or the discharging process is overlarge can be judged, and the safety performance of the circuit is effectively ensured.

Further, referring to fig. 16 and 17, the protection module 253 further includes a balancing unit 2535 connected between each battery cell and the protection chip (2531/U3), in this embodiment, the battery cells are connected in series as an example, wherein one balancing unit 2535 includes a transistor Q4, a resistor R18, a resistor R1 and a resistor R11, an emitter of the transistor Q4 is connected to the positive electrode of the battery pack 24, a base of the transistor Q4 is connected to the protection chip (2531/U3) through the resistor R18, a collector of the transistor Q4 is connected to the negative electrode of the battery pack 24 through the resistor R1, and the resistor R11 is connected between the emitter and the base of the transistor Q4.

In this embodiment, the transistor Q4 is preferably a PNP transistor.

When the protection chip (2531/U3) monitors that the voltage difference between the battery cores is large, assuming that the voltage of the battery core corresponding to the balancing unit of the above example is high, the protection chip (2531/U3) outputs a low level to the base of the transistor Q4 corresponding to the battery core, so that the transistor Q4 is turned on, the battery core starts to discharge through the resistor R1 (energy consumption unit) until the voltage difference is at a low level, the transistor Q4 is turned off, so that the battery core does not discharge any more, and at this time, the electric quantity between the batteries is balanced. Through the balancing units 2535, the electric quantity between the batteries can be balanced, and the performance of the whole battery pack 24 is guaranteed.

In addition, in some embodiments, when the resistance value acquired by the sampling unit 2511 is lower than a preset value, that is, the temperature of the battery pack 24 is higher than a high-temperature preset value, the temperature control unit (2512/U1) outputs a high level through the pin PA6, and then the N-type MOS transistor is conducted through the resistor R39 and can be reported to the protection chip (2531/U3). When the TS pin of the protection chip (2531/U3) receives the signal, it is determined that the temperature of the battery pack 24 is too high, and a corresponding control signal is output to the MOS transistor Q15 or Q13 to disconnect the charging circuit or the discharging circuit.

In some embodiments, the power supply of the temperature control unit (2512/U1) may also be supplied by the output of the battery pack 24, the positive output of the battery pack 24 is sequentially filtered by the filter circuit formed by the resistor R30 and the capacitor C13, and is input to the voltage converter U2 after being stabilized by the zener diode ZD4, and is output to the power pin VDD of the temperature control unit (2512/U1) after being converted by the voltage converter U2, so as to provide the operating voltage for the temperature control unit (2512/U1).

In other embodiments, as shown in fig. 15, a lightning protection unit formed by an electrolytic capacitor EC1 and a transient diode D8 may be disposed between the output of the battery management circuit 250 and the driving mechanism 30, so as to better ensure the stability of the circuit and avoid the impact of external surge current on the circuit.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A motorized door handpiece, comprising: the device comprises a base, a battery assembly and a driving mechanism;

2. The electric door head as claimed in claim 1, wherein the mounting groove fixes the battery assembly by a snap, specifically comprising:

or the like, or, alternatively,

the mounting groove is provided with a clamping piece and a clamping groove;

3. The electric door machine head as claimed in claim 2, wherein if the mounting groove is provided with a clamping groove and the battery assembly is provided with a clamping piece, the clamping groove is arranged at the inner side or the outer side of the mounting groove, and the clamping piece is arranged at the same side corresponding to the clamping groove;

4. The electric door machine head as claimed in claim 3, wherein the fastening member is provided with at least one fastening block for fastening and fixing the battery assembly when the fastening block is attached to the fastening groove;

5. The power door handpiece of any one of claims 1 to 4, wherein said battery assembly comprises: the battery comprises a battery shell, a battery socket, a battery pack and a battery control board;

6. The power door head as claimed in claim 5, further comprising: a main control panel;

7. The power door handpiece of claim 6, wherein the battery receptacle is a three-hole receptacle, and the charging cable is coupled in combination with a neutral end of the discharging cable for charging the battery pack or discharging the battery pack to the drive mechanism through the three-hole receptacle.

8. The power door handpiece as set forth in claim 5, wherein said battery assembly further includes: a heating device and a temperature sensor;

9. The motorized door end as set forth in claim 8, wherein said heating device comprises a flexible film heating device.

10. An electric door, which comprises a door body and is characterized by further comprising an electric door head according to claim 6 or 7, wherein a main charging cable is arranged in the door body and is used for being connected with the main control board so as to charge the battery pack through the main control board;