Electric forklift controller and electric forklift control method

Abstract

The present invention discloses an electric forklift controller and an electric forklift control method, and belongs to the technical field of electric forklift accessories. An electric forklift controller includes a controller body and a heat dissipation base, the heat dissipation base is a corrugated plate structure, and card-connection holes are provided on both sides of the heat dissipation base. Two elastic card plates are mirror-imaged at the bottom of the controller body, and a bending protrusion is provided in the middle of the elastic card plate. The bending protrusion is provided in the card-connection through hole, and adjustment mounting plates are provided on both sides of the controller body, and the adjustment mounting plates are connected to a heat dissipation fan. Using the above-mentioned electric forklift controller and electric forklift control method, the heat dissipation base is connected to the controller body in a plug-in manner, and the heat dissipation fan is detachably connected to the heat dissipation base, which is convenient for subsequent cleaning of the heat dissipation base and replacement and maintenance of other components. A wire fixing mechanism is provided, so that when the controller body is disassembled, the connecting wires will not be messy, which greatly reduces the wrong connection rate, and the speed change is more stable, thereby improving the safety of forklift operation.

Description

Technical Field

[0001] The present invention relates to the technical field of electric forklift accessories, and in particular to an electric forklift controller and an electric forklift control method. Background Art

[0002] The electric forklift controller is the core component of the entire vehicle control system, responsible for receiving operating instructions and controlling the working state of the motor. It is usually installed near the vehicle's cockpit or on the chassis where it is safer and convenient to connect the wiring harness. Since heat is generated during the operation, it is necessary to ensure a good heat dissipation effect, such as installing a heat sink or a fan. For example, the patent with announcement number CN215626573U discloses an efficient heat dissipation controller for an electric forklift, including a controller body, a speaker is provided on the front outer surface of the controller body, a base is provided on the lower outer surface of the controller body, a heat dissipation fin is provided on the lower outer surface of the base, a 10A fuse is provided on one side of the controller body, a 200A fuse is provided on one side of the 10A fuse, a programmer interface is provided on the upper outer surface of the controller body, a mounting bracket is provided on one side of the heat dissipation fin, and a heat dissipation fan is provided at the rear end of the controller body. A heat dissipation fan and a connection structure of the heat dissipation fan are added to improve the heat dissipation function of the controller, and it is also convenient to disassemble and install, which is convenient for people to overhaul. The fan is fixedly installed and the existing heat sink has a simple structure and a single function. At the same time, although the installation bracket is set, there is no protection and fixing structure at the plug-in position, which makes the plug-in messy and easy to mix up after the controller is removed. At the same time, the speed control is unstable, which affects the handling effect. Summary of the invention

[0003] The purpose of the present invention is to provide an electric forklift controller and an electric forklift control method to solve the above technical problems.

[0004] To achieve the above-mentioned purpose, the present invention provides an electric forklift controller, including a controller body and a heat dissipation base, the heat dissipation base is a corrugated board structure, and card-connection holes are opened on both sides of the heat dissipation base. Two elastic card plates are mirror-imaged at the bottom of the controller body, and a bending protrusion is arranged in the middle of the elastic card plate, and the bending protrusion is arranged in the card-connection through hole. Adjustment mounting plates are arranged on both sides of the controller body, and the adjustment mounting plates are connected to a cooling fan.

[0005] Preferably, the cross-section of the bent protrusion is an isosceles trapezoid, a semicircle, or a rectangle.

[0006] Preferably, the adjustment mounting plate includes a vertical connecting plate and a horizontal mounting plate, the horizontal mounting plate is provided with an oblong hole, the vertical connecting plate is provided with a plurality of ventilation holes arranged in parallel, and the connecting bolt passes through one of the ventilation holes to be connected to the controller body.

[0007] Preferably, a vertical connecting plate of one of the adjustment mounting plates is hinged to one end of the telescopic plate, and the other end of the telescopic plate is connected to the cooling fan. A card is provided on the cooling fan, and the card includes a mounting stud. At least two symmetrically arranged elastic cards are provided at one end of the mounting stud, and a semicircular protrusion is provided on the side of the elastic card.

[0008] Preferably, a wire fixing mechanism is provided on the controller body, and the wire fixing mechanism includes a fixing plate, and card edges are provided on both sides of the fixing plate, and the card edges are arranged in fixing slots on the side of the controller body, and the fixing plate is connected to a first U-shaped card plate, and a middle wire fixing plate is arranged between the first U-shaped card plate and the second U-shaped card plate, and a plurality of first wire passing grooves and second wire passing grooves are respectively provided on the outer sides of the first U-shaped card plate and the second U-shaped card plate, and middle wire passing grooves are provided on both sides of the middle wire fixing plate, and connecting slots are provided on the upper end face and the lower end face of the middle wire fixing plate, and the connecting protrusions of the first U-shaped card plate and the second U-shaped card plate are arranged in the connecting slots.

[0009] Preferably, a control circuit board is disposed in the controller body, a temperature sensor is disposed on the control circuit board, the control circuit board is electrically connected to the cooling fan, an IO socket is disposed on the controller body, and the IO socket is disposed opposite to the middle wiring board.

[0010] The electric forklift control method based on the above electric forklift controller has the following specific steps: Step S1: The electric forklift controller obtains the electric forklift operation data and inputs the control data in real time through the IO socket; Step S2: the electric forklift controller obtains output control data according to the electric forklift operation data and input control data; Step S3: the electric forklift controller outputs control data to the electric forklift actuator via the IO socket.

[0011] Preferably, the electric forklift operating data includes vehicle speed and controller temperature data; the input control data includes direction gear data and speed gear data, the direction gear data includes forward gear, reverse gear and parking gear, the speed gear data includes low gear, medium gear and high gear, and the operating speeds of the low gear, medium gear and high gear are 30%, 60% and 100% of the set maximum speed respectively.

[0012] Preferably, when the speed gear is changed, the output control data includes an output change acceleration, and the output change acceleration follows a normal distribution until the running speed reaches the running speed after the gear is changed; When the direction gear is changed, when the handle is switched to the parking gear, the output control data is the ABS start signal, and when the handle is switched to the reverse gear, the output control data includes voice output data.

[0013] Preferably, when the controller temperature is greater than a set temperature, the cooling fan is started until the controller temperature is no greater than the set temperature.

[0014] Therefore, the present invention adopts the above-mentioned electric forklift controller and electric forklift control method, which has the following beneficial effects: (1) The heat sink base is connected to the controller body by plugging, and the heat sink fan is detachably connected to the heat sink base, which is convenient for subsequent cleaning of the heat sink base and replacement and maintenance of other components.

[0015] (2) A wire fixing mechanism is provided so that when the controller body is disassembled, the connecting wires will not be messy, greatly reducing the wrong connection rate.

[0016] (3) When the speed gear is changed, the output control data includes the output change acceleration, and the output change acceleration follows the normal distribution until the running speed reaches the running speed after the gear is changed, so that the speed change is smoother and the safety of forklift operation is improved.

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of an electric forklift controller according to Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the bending protrusion structure of the present invention; Figure 3 It is a schematic diagram of the card structure of the present invention; Figure 4 This is a schematic diagram of the structure of an electric forklift controller according to Embodiment 2 of the present invention; Figure 5 It is a schematic diagram of the first U-shaped card structure of the present invention.

[0019] Reference numerals 1. Controller body; 11. Fixed card slot; 12. IO socket; 2. Heat dissipation base; 3. Elastic card plate; 31. Bending protrusion; 4. Adjustment mounting plate; 41. Vertical connecting plate; 411. Ventilation through hole; 42. Horizontal mounting plate; 421. Long round hole; 43. Connecting bolt; 5. Cooling fan; 6. Telescopic plate; 7. Card; 71. Mounting stud; 72. Elastic card; 73. Semicircular protrusion; 8. Wire fixing mechanism; 81. Fixed plate; 811. Card corrugation; 82. First U-shaped card plate; 821. First wire through groove; 83. Second U-shaped card plate; 831. Second wire through groove; 84. Middle wire fixing plate; 841. Middle wire through groove; 842. Connecting card slot; 85. Connecting protrusion. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the invented product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "setting", "installation", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] Example 1 like Figure 1 As shown, an electric forklift controller includes a controller body 1 and a heat dissipation base 2. The heat dissipation base 2 is a corrugated board structure. Card connection holes are opened on both sides of the heat dissipation base 2. Two elastic card plates 3 are mirror-imaged at the bottom of the controller body 1. A bending protrusion 31 is set in the middle of the elastic card plate 3, as shown in FIG. Figure 2 As shown, the bending protrusion 31 is arranged in the card-connecting hole. According to actual needs, the cross-section of the bending protrusion 31 can be an isosceles trapezoid, a semicircle or a rectangle. The present embodiment adopts an isosceles trapezoid. Adjustment mounting plates 4 are arranged on both sides of the controller body 1. The adjustment mounting plates 4 include a vertical connecting plate 41 and a horizontal mounting plate 42. The horizontal mounting plate 42 is provided with an oblong hole 421 for installation and fixation. The vertical connecting plate 41 is provided with a plurality of ventilation holes 411 arranged in parallel for connecting the controller body 1. The connecting bolt 43 passes through one of the ventilation holes 411 and is connected to the controller body 1. The vertical connecting plate 41 of one of the adjustment mounting plates 4 is hinged to one end of the telescopic plate 6, and the other end of the telescopic plate 6 is connected to the cooling fan 5. Figure 1 The cooling fan 5 is not arranged opposite to the cooling base 2, which is convenient for cleaning the cooling base 2. When in operation, the cooling fan 5 is attached between the installation position and the controller body 1 to dissipate heat for the controller. A clamp 7 is provided on the cooling fan 5, and the clamp 7 includes a mounting stud 71. At least two symmetrically arranged elastic cards 72 are provided at one end of the mounting stud 71. A semicircular protrusion 73 is provided on the side of the elastic card 72. The semicircular protrusion is clamped in the groove of the corrugated board structure, which is convenient for clamping the cooling fan 5 with the cooling base 2 and for installing the entire controller body.

[0023] A control circuit board is provided in the controller body 1, a temperature sensor is provided on the control circuit board, the control circuit board is electrically connected to the cooling fan 5, an IO socket 12 is provided on the controller body 1, and the IO socket 12 is arranged opposite to the middle fixed wire plate 84. It is used to detect the temperature of the controller body 1 in real time, and control the opening and closing of the cooling fan 5 according to the temperature of the controller body 1.

[0024] Example 2 The difference between this embodiment and embodiment 1 is that a wire fixing mechanism 8 is provided on the controller body 1. Figure 4 As shown, the wire fixing mechanism 8 includes a fixing plate 81, and the fixing plate 81 is provided with ribs 811 on both sides. The ribs 811 are arranged in the fixing slots 11 on the side of the controller body 1. The fixing plate 81 is made of a plastic material with a certain elasticity. The ribs 811 can be arranged in the fixing slots 11 by pressing the fixing plate 81 downward, and the controller body 1 and the fixing plate 81 can be disassembled by lifting the fixing plate 81 upward. Figure 5 As shown, the fixing plate 81 is connected to the first U-shaped card plate 82, and a middle wire fixing plate 84 is arranged between the first U-shaped card plate 82 and the second U-shaped card plate 83. The outer sides of the first U-shaped card plate 82 and the second U-shaped card plate 83 are respectively provided with a plurality of first wire passing grooves 821 and second wire passing grooves 831, and middle wire passing grooves 841 are opened on both sides of the middle wire fixing plate 84. The upper end face and the lower end face of the middle wire fixing plate 84 are both provided with connecting grooves 842, and the connecting protrusions 85 of the first U-shaped card plate 82 and the second U-shaped card plate 83 are arranged in the connecting grooves 842.

[0025] The first wire through groove 821 and the second wire through groove 831 and the middle wire through groove 841 form two rows of wire through holes, and the connecting wires are set in the corresponding wire through holes. When the controller body 1 needs to be disassembled, the fixing plate 81 is removed and the wires on the IO socket 12 are pulled out. After the maintenance is completed and the controller body 1 is installed, the fixing plate 81 is installed back on the controller body 1. Since the wires are fixed in the corresponding wire through holes, it is not easy to connect them incorrectly.

[0026] The electric forklift control method based on the above electric forklift controller has the following specific steps: Step S1: The electric forklift controller obtains the electric forklift operation data and input control data in real time through the IO socket 12; the electric forklift operation data includes the vehicle speed and controller temperature data; the input control data includes the direction gear data and the speed gear data, the direction gear data includes the forward gear, the reverse gear and the parking gear, the speed gear data includes the low speed gear, the medium speed gear and the high speed gear, and the operation speeds of the low speed gear, the medium speed gear and the high speed gear are 30%, 60% and 100% of the set maximum speed respectively.

[0027] Step S2: the electric forklift controller obtains output control data according to the electric forklift operation data and input control data; Step S3: the electric forklift controller outputs control data to the electric forklift execution components through the IO socket 12. The electric forklift execution components include the motor, the voice module, the ABS and the cooling fan 5, etc., and other components can also be controlled according to actual conditions.

[0028] When the speed gear is changed, the output control data includes the output change acceleration, and the output change acceleration follows the normal distribution until the running speed reaches the running speed after the gear is changed. For example, when the medium speed gear is changed to the high speed gear, the speed needs to be increased slowly and cannot reach the high speed instantly. The acceleration follows the normal distribution to make the speed transition smoothly.

[0029] When the direction gear is changed, when the handle is switched to the parking gear, the output control data is to start the ABS signal to prevent the front and rear from sliding down the slope. When the handle is switched to the reverse gear, the output control data includes voice output data.

[0030] When the controller temperature is greater than the set temperature, the cooling fan 5 is started until the controller temperature is no greater than the set temperature.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, and the controller and the corresponding sensors are conventional components in the field and are no longer limited to their specific models, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An electric forklift controller, comprising a controller body and a heat dissipation base, characterized in that: The heat dissipation base is a corrugated plate structure, with card-connection holes on both sides of the heat dissipation base. Two elastic card plates are mirror-imaged at the bottom of the controller body. A bending protrusion is provided in the middle of the elastic card plate, and the bending protrusion is provided in the card-connection hole. Adjustment mounting plates are provided on both sides of the controller body, and the adjustment mounting plates are connected to the cooling fan.

2. An electric forklift controller according to claim 1, characterized in that: The cross section of the bent protrusion is an isosceles trapezoid, a semicircle or a rectangle.

3. The electric forklift controller according to claim 1, characterized in that: The adjustment mounting plate comprises a vertical connection plate and a horizontal mounting plate. The horizontal mounting plate is provided with an oblong hole, and the vertical connection plate is provided with a plurality of ventilation holes arranged in parallel. A connecting bolt passes through one of the ventilation holes and is connected to the controller body.

4. An electric forklift controller according to claim 3, characterized in that: A vertical connecting plate of one of the adjustment mounting plates is hinged to one end of the telescopic plate, and the other end of the telescopic plate is connected to the cooling fan. A clamp is provided on the cooling fan, and the clamp includes a mounting stud. At least two symmetrically arranged elastic cards are provided at one end of the mounting stud, and a semicircular protrusion is provided on the side of the elastic card.

5. An electric forklift controller according to claim 4, characterized in that: A wire fixing mechanism is arranged on the controller body, and the wire fixing mechanism includes a fixing plate, and card edges are arranged on both sides of the fixing plate, and the card edges are arranged in the fixing card grooves on the side of the controller body. The fixing plate is connected with a first U-shaped card plate, and a middle wire fixing plate is arranged between the first U-shaped card plate and the second U-shaped card plate. A plurality of first wire passing grooves and second wire passing grooves are respectively provided on the outer sides of the first U-shaped card plate and the second U-shaped card plate, and middle wire passing grooves are provided on both sides of the middle wire fixing plate, and connecting card grooves are provided on the upper end face and the lower end face of the middle wire fixing plate, and the connecting protrusions of the first U-shaped card plate and the second U-shaped card plate are arranged in the connecting card grooves.

6. An electric forklift controller according to claim 5, characterized in that: A control circuit board is arranged in the controller body, a temperature sensor is arranged on the control circuit board, the control circuit board is electrically connected with the cooling fan, an IO socket is arranged on the controller body, and the IO socket is arranged opposite to the middle fixed line board.

7. An electric forklift control method based on an electric forklift controller according to claim 6, characterized in that: The specific steps are as follows: Step S1: The electric forklift controller obtains the electric forklift operation data and inputs the control data in real time through the IO socket; Step S2: the electric forklift controller obtains output control data according to the electric forklift operation data and input control data; Step S3: the electric forklift controller outputs control data to the electric forklift actuator via the IO socket.

8. The electric forklift control method of the electric forklift controller according to claim 7, characterized in that: The operating data of the electric forklift includes vehicle speed and controller temperature data; the input control data includes direction gear data and speed gear data. The direction gear data includes forward gear, reverse gear and parking gear. The speed gear data includes low gear, medium gear and high gear. The operating speeds of low gear, medium gear and high gear are 30%, 60% and 100% of the set maximum speed respectively.

9. The electric forklift control method of the electric forklift controller according to claim 8, characterized in that: When the speed gear is changed, the output control data includes the output change acceleration, and the output change acceleration follows a normal distribution until the running speed reaches the running speed after the gear is changed; When the direction gear is changed, when the handle is switched to the parking gear, the output control data is the ABS start signal, and when the handle is switched to the reverse gear, the output control data includes voice output data.

10. The electric forklift control method of the electric forklift controller according to claim 9, characterized in that: When the controller temperature is higher than the set temperature, the cooling fan is started until the controller temperature is no higher than the set temperature.

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