Electric control system of reach forklift

Abstract

The utility model discloses an electric control system of a reach forklift. The reach forklift electric control system comprises a bottom plate, an integrated controller, a copper bar connecting assembly, a contactor assembly, a fuse assembly and a fuse box, and the integrated controller, the contactor assembly, the fuse assembly and the fuse box are all fixed to the bottom plate through bolts. The fuse assembly is arranged between the integrated controller and the contactor assembly and used for protecting the integrated controller, and the copper bar connecting assemblies are arranged between the integrated controller and the fuse assembly and between the fuse and the contactor assembly respectively. According to the utility model, the control number of the controllers is effectively reduced, the occupied area of the electric control system is reduced, the stability is effectively improved, and electrical elements are prevented from being damaged during walking or lifting.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklifts, and in particular relates to an electric control system for a reach-type forklift. Background Art

[0002] A reach truck is a type of warehouse truck that can be divided into a sit-down reach truck and a stand-up reach truck based on the mode of operation. Reach trucks have a smaller lifting capacity and are often driven by a control system that controls the motor.

[0003] In the existing technology, slip control is often used for control, which causes poor synchronization when the drive motor is moving. During use, its starting speed and driving speed are subject to corresponding restrictions. During walking start and lifting start, it is not easy to be too aggressive, which can easily cause damage to electrical components. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the present invention provides an electric control system for a reach forklift, comprising: a base plate, an integrated controller, a copper busbar connection assembly, a contactor assembly, a fuse assembly and a fuse box, wherein: the integrated controller, the contactor assembly, the fuse assembly and the fuse box are all fixed to the base plate by bolts, the fuse assembly is arranged between the integrated controller and the contactor assembly to protect the integrated controller, and the copper busbar connection assembly is respectively arranged between the integrated controller and the fuse assembly, and between the fuse and the contactor assembly.

[0005] Furthermore, in the above-mentioned reach truck electronic control system, the copper bar connection assembly includes a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a fifth copper bar, a sixth copper bar, a seventh copper bar, an eighth copper bar and a ninth copper bar.

[0006] Furthermore, in the above-mentioned reach forklift electronic control system, the integrated controller includes a drive controller, an oil pump controller, an AC steering controller and a solenoid valve controller. The drive controller, the oil pump controller and the AC steering controller are all provided with control connection points and fuse connection points. The control connection points on the drive controller are connected to the control connection points on the oil pump controller through the first copper busbar, and the control connection points on the oil pump controller are connected to the control connection points on the AC steering controller through the second copper busbar. The solenoid valve controller is electrically connected to the drive controller, the oil pump controller and the AC steering controller respectively.

[0007] Furthermore, in the above-mentioned reach truck electronic control system, the fuse assembly includes a drive control fuse, an oil pump control fuse and a steering control fuse, the drive control fuse is connected to the steering control fuse through the third copper bar, the steering control fuse is connected to the fuse connection point on the AC steering controller through the fourth copper bar, the oil pump control fuse is connected to the fuse connection point on the oil pump controller through the fifth copper bar, and the drive control fuse is connected to the fuse connection point on the drive controller through the sixth copper bar.

[0008] Furthermore, in the above-mentioned reach forklift electronic control system, the contactor assembly includes a main contactor and an oil pump contactor, the main contactor is connected to the oil pump control contactor through the seventh copper bar, the main contactor is connected to the drive control fuse and the steering control fuse through the eighth copper bar, and the oil pump contactor is connected to the oil pump control fuse through the ninth copper bar.

[0009] Furthermore, in the above-mentioned reach forklift electric control system, the seventh copper bar is connected to the positive input interface of the power supply;

[0010] The control connection point on the oil pump controller is connected to the negative input interface of the power supply.

[0011] Furthermore, in the above-mentioned electric control system of the reach forklift, the fuse box is electrically connected to the forklift body.

[0012] The electric control system for reach forklifts of the utility model has the following advantages and beneficial effects:

[0013] The utility model integrates a drive controller + oil pump controller + AC steering controller + solenoid valve controller into an integrated controller, which effectively reduces the number of controllers and reduces the area occupied by the electronic control system. The drive controller, oil pump controller and AC steering controller are accurately controlled by the solenoid valve controller respectively, which effectively improves the stability. The setting of the fuse component effectively improves the safety and avoids damage to electrical components during walking or lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only used to further understand the embodiments of the present invention and constitute part of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1This is a schematic diagram of the three-dimensional structure of the electric control system of the reach forklift of the present invention;

[0016] Figure 2 It is a top view of the electric control system of the reach forklift of the present invention.

[0017] Description of reference numerals:

[0018] 1: bottom plate;

[0019] 2: integrated controller, 21: drive controller, 22: oil pump controller, 23: AC steering controller, 24: solenoid valve controller, 25: control connection point, 26: fuse connection point;

[0020] 3: copper bar connection assembly, 31: first copper bar, 32: second copper bar, 33: third copper bar, 34: fourth copper bar, 35: fifth copper bar, 36: sixth copper bar, 37: seventh copper bar, 38: eighth copper bar, 39: ninth copper bar;

[0021] 4: Contactor assembly, 41: Main contactor, 42: Oil pump contactor;

[0022] 5: Fuse assembly, 51: Drive control fuse, 52: Oil pump control fuse, 53: Steering control fuse;

[0023] 6: Fuse box. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will provide a clear and complete description of the technical solutions of the present invention in conjunction with specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] like Figure 1-2 As shown, the electric control system of a reach forklift of the present invention includes: a base plate 1, an integrated controller 2, a copper busbar connection assembly 3, a contactor assembly 4, a fuse assembly 5 and a fuse box 6, wherein: the integrated controller 2, the contactor assembly 4, the fuse assembly 5 and the fuse box 6 are all fixed to the base plate 1 by bolts, the fuse assembly 5 is arranged between the integrated controller 2 and the contactor assembly 4 to protect the integrated controller 2, and the copper busbar connection assembly 3 is respectively arranged between the integrated controller 2 and the fuse assembly 5, and between the fuse and the contactor assembly 4.

[0026] Furthermore, in the electric control system of the reach forklift of the utility model, the copper bar connection assembly 3 includes a first copper bar 31, a second copper bar 32, a third copper bar 33, a fourth copper bar 34, a fifth copper bar 35, a sixth copper bar 36, a seventh copper bar 37, an eighth copper bar 38 and a ninth copper bar 39, thereby ensuring a stable connection between the integrated controller 2, the contactor assembly 4 and the fuse assembly 5 through the copper bar connection assembly 3, thereby effectively improving the stability during operation.

[0027] Furthermore, in the electric control system of the reach forklift of the utility model, the integrated controller 2 includes a drive controller 21, an oil pump controller 22, an AC steering controller 23 and a solenoid valve controller 24. The drive controller 21, the oil pump controller 22 and the AC steering controller 23 are all provided with a control connection point 25 and a fuse connection point 26. The control connection point 25 on the drive controller 21 is connected to the control connection point 25 on the oil pump controller 22 through a first copper bus 31, and the control connection point 25 on the oil pump controller 22 is connected to the control connection point 25 on the AC steering controller 23 through a second copper bus 32, so that the drive controller 2 1. The oil pump controller 22 and the AC steering controller 23 form an integrated control system. When turning, the vehicle's travel speed can be limited according to the turning angle. The solenoid valve controller 24 is electrically connected to the drive controller 21, the oil pump controller 22, and the AC steering controller 23, respectively. Thus, the drive controller 21, the oil pump controller 22, and the AC steering controller 23 are controlled separately or simultaneously by the electromagnetic controller. When the drive controller 21, the oil pump controller 22, and the AC steering controller 23 are working, the battery voltage is used to ensure the accuracy of the integrated controller 2, stabilize the torque, and reduce switching losses, thereby ensuring optimal control performance.

[0028] Furthermore, in the electronic control system of the reach forklift of the utility model, the fuse assembly 5 includes a drive control fuse 51, an oil pump control fuse 52 and a steering control fuse 53. The drive control fuse 51 is connected to the steering control fuse 53 through the third copper bar 33, the steering control fuse 53 is connected to the fuse connection point 26 on the AC steering controller 23 through the fourth copper bar 34, the oil pump control fuse 52 is connected to the fuse connection point 26 on the oil pump controller 22 through the fifth copper bar 35, and the drive control fuse 51 is connected to the fuse connection point 26 on the drive controller 21 through the sixth copper bar 36, so that the drive controller 21, the oil pump controller 22 and the AC steering controller 23 are protected by the drive control fuse 51, the oil pump control fuse 52 and the steering control fuse 53 respectively, effectively avoiding the problem of burning of the controller during use.

[0029] Furthermore, in the electric control system of the reach forklift of the utility model, the contactor assembly 4 includes a main contactor 41 and an oil pump contactor 42. The main contactor 41 is connected to the oil pump control contactor through the seventh copper bar 37, the main contactor 41 is connected to the drive control fuse 51 and the steering control fuse 53 through the eighth copper bar 38, and the oil pump contactor 42 is connected to the oil pump control fuse 52 through the ninth copper bar 39, thereby effectively ensuring that the forklift motor can be frequently switched on and off.

[0030] Furthermore, in the electric control system of the reach forklift of the utility model, the seventh copper bar 37 is connected to the positive input interface of the power supply;

[0031] The control connection point 25 on the oil pump controller 22 is connected to the negative input interface of the power supply.

[0032] Furthermore, in the electric control system of the reach forklift of the utility model, the fuse box 6 is electrically connected to the forklift body, thereby providing a fuse for the power supply of the entire vehicle and facilitating maintenance.

[0033] Specifically, during installation, the seventh copper bus 37 is first connected to the positive input interface of the power supply, and the control connection point 25 on the oil pump controller 22 is connected to the negative input interface of the power supply. At the same time, the vehicle control power supply is connected to the fuse box 6 through the wiring harness. When working, the drive controller 21, the oil pump controller 22 and the AC steering controller 23 form an integrated control. When turning, the vehicle walking speed can be limited according to the turning angle, and the solenoid valve controller 24 accurately controls the speed and rotation speed according to the control characteristics during the operation of the drive controller 21, the oil pump controller 22 and the AC steering controller 23. The drive control fuse 51, the oil pump control fuse 52 and the steering control fuse 53 correspond one-to-one to the drive controller 21, the oil pump controller 22 and the AC steering controller 23, which effectively ensures the safe operation of the integrated controller 2.

[0034] In summary, compared with the prior art, the electric control system for reach forklifts of the present invention has the following advantages and beneficial effects:

[0035] The utility model integrates a drive controller + oil pump controller + AC steering controller + solenoid valve controller into an integrated controller, which effectively reduces the number of controllers and reduces the area occupied by the electronic control system. The drive controller, oil pump controller and AC steering controller are accurately controlled by the solenoid valve controller respectively, which effectively improves the stability. The setting of the fuse component effectively improves the safety and avoids damage to electrical components during walking or lifting.

[0036] It should be noted that, in this document, unless otherwise expressly specified or limited, the term "connected" or its synonyms should be interpreted broadly. For example, "connected" can mean a fixed or removable connection; a mechanical or electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication between two elements or the interaction between two elements. A person of ordinary skill in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances. Furthermore, expressions such as "first" and "second" are used solely to distinguish one entity or operation from another and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Furthermore, the terms "front," "rear," "left," "right," "upper," and "lower" herein are used with reference to the positions shown in the accompanying drawings.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An electronic control system for a reach forklift, characterized in that: The electronic control system of the reach forklift includes a base plate, an integrated controller, a copper busbar connection assembly, a contactor assembly, a fuse assembly and a fuse box, wherein: the integrated controller, the contactor assembly, the fuse assembly and the fuse box are all fixed to the base plate by bolts, the fuse assembly is arranged between the integrated controller and the contactor assembly to protect the integrated controller, and the copper busbar connection assembly is respectively arranged between the integrated controller and the fuse assembly, and between the fuse and the contactor assembly.

2. The electronic control system for a reach truck according to claim 1, characterized in that: The copper bar connection assembly includes a first copper bar, a second copper bar, a third copper bar, a fourth copper bar, a fifth copper bar, a sixth copper bar, a seventh copper bar, an eighth copper bar and a ninth copper bar.

3. The electronic control system for a reach truck according to claim 2, characterized in that: The integrated controller includes a drive controller, an oil pump controller, an AC steering controller and a solenoid valve controller. The drive controller, the oil pump controller and the AC steering controller are all provided with control connection points and fuse connection points. The control connection points on the drive controller are connected to the control connection points on the oil pump controller through the first copper busbar, and the control connection points on the oil pump controller are connected to the control connection points on the AC steering controller through the second copper busbar. The solenoid valve controller is electrically connected to the drive controller, the oil pump controller and the AC steering controller respectively.

4. The electronic control system for a reach truck according to claim 3, wherein: The fuse assembly includes a drive control fuse, an oil pump control fuse and a steering control fuse. The drive control fuse is connected to the steering control fuse through the third copper bar, the steering control fuse is connected to the fuse connection point on the AC steering controller through the fourth copper bar, the oil pump control fuse is connected to the fuse connection point on the oil pump controller through the fifth copper bar, and the drive control fuse is connected to the fuse connection point on the drive controller through the sixth copper bar.

5. The electronic control system for a reach truck according to claim 4, wherein: The contactor assembly includes a main contactor and an oil pump contactor. The main contactor is connected to the oil pump control contactor through the seventh copper bar, the main contactor is connected to the drive control fuse and the steering control fuse through the eighth copper bar, and the oil pump contactor is connected to the oil pump control fuse through the ninth copper bar.

6. The electronic control system for a reach truck according to claim 5, characterized in that: The seventh copper busbar is connected to the positive input interface of the power supply; The control connection point on the oil pump controller is connected to the negative input interface of the power supply.

7. The electronic control system for a reach truck according to claim 1, wherein: The fuse box is electrically connected to the forklift body.

Images