A forklift electric drive electric control assembly heat dissipation structure

Abstract

This utility model discloses a heat dissipation structure for the electronic control assembly of a forklift electric drive, including at least one motor and an electronic control unit that is assembled with the motor. The electronic control unit is fixedly installed above the motor. A lifting beam extending to the left and right is provided on the side of the base plate of the electronic control unit facing the motor. The lifting beam is used to lift the heat dissipation component. The lifting beam has a limiting rail extending to the left and right and passing through the front and back. A threaded rotating rod extending to the left and right is installed in the limiting rail. At least one set of clamping blocks is provided on the upper surface of the outer frame of the heat dissipation component. The upper end of the clamping block has a threaded groove extending to the left and right. After each set of clamping blocks moves and assembles in opposite directions, it can form a threaded sleeve that fits perfectly with the threaded rotating rod. The heat dissipation component of this utility model uses a cooling fan installed in the outer frame to blow away the airflow from the chip position on the base plate of the electronic control unit. The airflow is concentrated, and the heat dissipation efficiency is high. The heat dissipation component is suspended from the lifting beam of the base plate of the electronic control unit. After installation, the position can be flexibly adjusted, and the adjustability and applicability are high.

Description

Technical Field

[0001] This utility model relates to the field of forklift electronic assembly technology, and in particular to a heat dissipation structure for the electronic control assembly of a forklift electric drive. Background Technology

[0002] Existing forklift electric drive electrical control systems employ air cooling by installing heat dissipation fins on the main control panel and carving out cavities within these fins for fan installation. While this provides effective cooling, the manufacturing cost of creating these cavities is high. Furthermore, the fans can only be installed in fixed locations within these cavities, resulting in poor adjustability and applicability. If multiple fans are installed, the airflow between them can interfere with each other, leading to reduced cooling efficiency. Utility Model Content

[0003] In order to solve the problems mentioned in the background art, the present invention provides a heat dissipation structure for the electronic control assembly of a forklift electric drive.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A heat dissipation structure for the electric control assembly of a forklift electric drive includes at least one motor and an electric control unit that is assembled with the motor. The electric control unit is fixedly installed above the motor. A lifting beam extending to the left and right is provided on the side of the base plate of the electric control unit facing the motor. The lifting beam is used to lift the heat dissipation components. The lifting beam has a limiting rail extending to the left and right and passing through the front and back. A threaded rotating rod extending to the left and right is installed in the limiting rail.

[0006] The outer frame of the heat dissipation component is provided with at least one set of clamping blocks. The upper end of the clamping blocks has threaded grooves extending to the left and right. After each set of clamping blocks moves and assembles in opposite directions, it can form a threaded sleeve that fits perfectly with the threaded rotating rod.

[0007] Preferably, the base plate of the electronic control unit has several heat dissipation fins that extend horizontally and are arranged in a front-to-back array on the side facing the motor.

[0008] Preferably, the outer frame has a through cavity that can accommodate the fixed beam and the fan. The fixed beam is fixedly mounted in the cavity inside the outer frame. The fan is electrically controlled and powered. The fan is mounted on the fixed beam and can rotate in the cavity inside the outer frame to generate airflow.

[0009] Preferably, the clamping blocks are all installed in the guide rails provided by the outer frame, and can move towards or away from each other along the guide rails that extend forward and backward.

[0010] Preferably, after the clamping blocks move towards each other and are assembled, there is a gap below the threaded groove that is not less than the thickness of the lifting beam, and the gap generated at the upper end when the clamping blocks move away from each other is not less than the thickness of the lifting beam.

[0011] Preferably, the two ends of the threaded rod are axially rotatable and mounted on the left and right side walls of the limiting rail via a rotating shaft, and a rotating head coaxially connected to the threaded rod is installed on the outside of the lifting beam.

[0012] Preferably, an inner cavity is provided in the four corners of the outer frame, and the inner cavity extends upward to the outside through the guide rail. The clamping block has a linkage block that passes through the guide rail and enters the inner cavity. The end of the linkage block extending into the inner cavity is connected to the spring-loaded component provided in the inner cavity.

[0013] Preferably, when the spring is at its normal length, the linkage blocks are pushed closer together to make the two pairs of clamping blocks fit tightly. A locking groove is provided at the bottom of the linkage block, and a U-shaped insert is provided below the linkage block. The U-shaped insert is restricted by the inner wall of the inner cavity and can only move vertically.

[0014] Preferably, the U-shaped insert and the adjusting screw are connected by a rotating shaft. The U-shaped insert has two upwardly extending protrusions. When the clamping blocks are close together, the U-shaped insert moves upward so that the protrusions can be inserted into the locking grooves of the two clamping blocks.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The heat dissipation component of this utility model uses a cooling fan installed inside an outer frame to blow away air from the chip position on the electronic control base plate. The air volume is concentrated, resulting in high heat dissipation efficiency. The heat dissipation component is suspended from the lifting beam of the electronic control base plate, and its position can be flexibly adjusted after installation, making it highly adjustable and applicable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the forklift electric drive and electronic control assembly structure described in this utility model;

[0019] Figure 2 This is a schematic diagram of the installation of the electronic control and heat dissipation components described in this utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the clamping block assembly structure described in this utility model.

[0022] In the diagram: 1. Motor; 2. Electrical control; 201. Limit rail; 21. Heat dissipation fins; 22. Lifting beam; 23. Threaded rotating rod; 24. Rotating head; 3. Heat dissipation assembly; 301. Guide rail; 302. Threaded groove; 303. Internal cavity; 304. Locking groove; 305. Threaded hole; 31. Outer frame; 32. Fixed beam; 33. Fan; 34. Clamping block; 35. Linkage block; 36. Springback component; 37. U-shaped insert; 38. Adjusting screw. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1

[0025] Reference Figure 1-4 A heat dissipation structure for the electric control assembly of a forklift electric drive includes at least one motor 1 and an electric control unit 2 that is assembled with the motor 1. The electric control unit 2 is fixedly installed above the motor 1 by screws. A heat dissipation component 3 is installed between the motor 1 and the electric control unit 2 to provide air cooling for the motor 1 and the electric control unit 2.

[0026] Specifically, the base plate of the electronic control unit 2 is provided with several heat dissipation ribs 21 extending left and right and arranged in a front-back array on the side facing the motor 1, in order to increase the heat dissipation area of ​​the base plate of the electronic control unit 2. Two lifting beams 22 extending left and right are also installed on the base plate of the electronic control unit 2. The two lifting beams 22 are respectively located in front of the frontmost heat dissipation rib 21 and behind the rearmost heat dissipation rib 21, for lifting the heat dissipation component 3.

[0027] The heat dissipation assembly 3 includes an outer frame 31, a fixed beam 32, and a fan 33. The outer frame 31 has a through cavity that can accommodate the fixed beam 32 and the fan 33. The fixed beam 32 is fixedly mounted in the cavity inside the outer frame 31, so that the fan 33 can be mounted on the fixed beam 32 and can rotate in the cavity inside the outer frame 31 to generate airflow. The airflow blown by the fan 33 can blow towards the heat dissipation fins 21 above, thereby effectively cooling the electronic control 2. The fan 33 is controlled and powered by the electronic control 2.

[0028] The lifting beam 22 has a limiting rail 201 that extends horizontally and passes through the front and back. A threaded rotating rod 23 that extends horizontally is installed inside the limiting rail 201. The two ends of the threaded rotating rod 23 are rotatably mounted on the left and right side walls of the limiting rail 201 via rotating shafts. A rotating head 24 is installed on the outside of the lifting beam 22 and is coaxially connected to the threaded rotating rod 23, so that the user can drive the threaded rotating rod 23 to rotate axially within the limiting rail 201 by twisting the rotating head 24.

[0029] Each of the four corners of the outer frame 31 is provided with a set of clamping blocks 34. Each set of clamping blocks 34 is installed in the guide rails 301 at the four corners of the outer frame 31 and cannot be separated from the outer frame 31. They can move towards each other or away from each other along the guide rails 301 that extend forward and backward. The upper end of each clamping block 34 has a threaded groove 302 that extends left and right. After each set of clamping blocks 34 moves towards each other and is assembled, it can form a threaded sleeve that fits perfectly with the threaded rotating rod 23. After the clamping blocks 34 move towards each other and are assembled, there is a gap below the threaded groove 302 that is not less than the thickness of the lifting beam 22. And when the clamping blocks 34 move away from each other, the gap generated at the upper end is not less than the thickness of the lifting beam 22.

[0030] The spacing between the front and rear sets of clamping blocks 34 of the heat dissipation component 3 is the same as the front and rear spacing of the hoisting beam 22. Before installation, the user separates each set of clamping blocks 34 to move the threaded groove 302 to the height set by the threaded rotating rod 23. Then, the user tightly joins and holds each set of clamping blocks 34 together so that the upper part of the clamping block 34 moves into the limiting rail 201 and the threaded groove 302 wraps around the threaded rotating rod 23, thereby hoisting the heat dissipation component 3 below the heat dissipation fin 21 and changing the horizontal position by rotating the threaded rotating rod 23.

[0031] Example 2

[0032] Reference Figure 1-4 The difference between this embodiment and embodiment 1 is that an inner cavity 303 is provided in the four corners of the outer frame 31. The inner cavity 303 extends upward to the outside through the guide rail 301. The clamping block 34 has a linkage block 35 that penetrates the guide rail 301 and enters the inner cavity 303. The end of the linkage block 35 that extends into the inner cavity 303 is connected to the spring member 36 provided in the inner cavity 303.

[0033] When the spring-loaded component 36 is at its normal length, it pushes the linkage block 35 closer together, causing the two pairs of clamping blocks 34 to fit tightly together. The user can also overcome the spring force of the spring-loaded component 36 to separate the two pairs of clamping blocks 34 when installing the heat dissipation component 3. After the clamping blocks 34 are moved to the same height as the threaded groove 302 and the threaded rotating rod 23, the user can remove the separation force. The spring force of the spring-loaded component 36 can cause the two pairs of clamping blocks 34 to clamp the threaded rotating rod 23 and engage the threads.

[0034] The linkage block 35 has a locking groove 304 at its bottom, and a U-shaped insert 37 is provided below the linkage block 35. The U-shaped insert 37 is restricted by the inner wall of the inner cavity 303 and can only move vertically. The U-shaped insert 37 is connected to the adjusting screw head 38 through a rotating shaft. One end of the adjusting screw head 38 is inserted into the U-shaped insert 37 and cannot be disengaged, but it can rotate axially relative to the U-shaped insert 37. The inner cavity 303 extends downward to the outside through a threaded hole 305. The threaded rod of the adjusting screw head 38 passes through the threaded hole 305 and a torsion head is provided outside the outer frame 31. The adjusting screw head 38 is threadedly engaged with the threaded hole 305. The user can adjust the vertical position of the U-shaped insert 37 by rotating the adjusting screw head 38.

[0035] The U-shaped insert 37 has two upwardly extending protrusions. When the clamping blocks 34 are close together, the U-shaped insert 37 moves upward so that the protrusions can be inserted into the locking grooves 304 of the two clamping blocks 34, so that the two clamping blocks 34 cannot be separated unless the U-shaped insert 37 moves downward so that the protrusions are removed from the locking grooves 304. After the clamping blocks 34 are installed in conjunction with the threaded rotating rod 23, the user can lift the U-shaped insert 37 by rotating the adjusting screw head 38 to lock the clamping blocks 34, ensuring the stability of the heat dissipation assembly 3 during hoisting and installation.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for the electronic control assembly of a forklift electric drive, comprising at least one motor (1) and an electronic control unit (2) assembled in cooperation with the motor (1), wherein the electronic control unit (2) is fixedly installed above the motor (1), characterized in that: The bottom plate of the electric control (2) is provided with a left and right extending hoisting beam (22) on the side facing the motor (1). The hoisting beam (22) is used to hoist the heat dissipation component (3). The hoisting beam (22) has a left and right extending and front and back penetrating limit rail (201). A left and right lateral extending threaded rotating rod (23) is installed in the limit rail (201). The outer frame (31) of the heat dissipation component (3) is provided with at least one set of clamping blocks (34). The upper end of the clamping block (34) has a threaded groove (302) extending to the left and right. After each set of clamping blocks (34) moves and assembles in opposite directions, it can form a threaded sleeve that fits perfectly with the threaded rotating rod (23).

2. The heat dissipation structure of the electric control assembly of the electric drive of the fork truck according to claim 1, characterized in that: The base plate of the electronic control (2) is provided with several heat dissipation fins (21) that extend left and right and are arranged in a front and back array on the side facing the motor (1).

3. The electric control assembly heat dissipation structure of the electric drive of the fork truck according to claim 1, characterized in that: The outer frame (31) has an open cavity that can accommodate the fixed beam (32) and the fan (33). The fixed beam (32) is fixedly mounted in the cavity inside the outer frame (31). The fan (33) is controlled and powered by the electric control (2). The fan (33) is mounted on the fixed beam (32) and can rotate in the cavity inside the outer frame (31) to generate airflow.

4. The heat dissipation structure of the electronic control assembly of a forklift electric drive according to claim 1, characterized in that: The clamping blocks (34) are all installed in the guide rails (301) provided on the outer frame (31) and can move towards each other or away from each other along the guide rails (301) that extend forward and backward.

5. The heat dissipation structure of the electric control assembly of the electric drive of the fork truck according to claim 1, characterized in that: After the clamping blocks (34) move towards each other and are assembled, the space below the threaded groove (302) is not less than the thickness of the hoisting beam (22), and the space generated at the upper end by the clamping blocks (34) moving away from each other is not less than the thickness of the hoisting beam (22).

6. The heat dissipation structure of the electric control assembly of the electric drive of the fork truck according to claim 1, characterized in that: The two ends of the threaded rotating rod (23) are rotatably mounted on the left and right side walls of the limiting rail (201) via a rotating shaft. The lifting beam (22) is equipped with a rotating head (24) that is coaxially connected to the threaded rotating rod (23).

7. The electric control assembly heat dissipation structure of the electric drive of the fork truck according to claim 4, characterized in that: The outer frame (31) has an inner cavity (303) at each of its four corners. The inner cavity (303) extends upward to the outside via a guide rail (301). The clamping block (34) has a linkage block (35) that passes through the guide rail (301) and enters the inner cavity (303). The end of the linkage block (35) extending into the inner cavity (303) is connected to the spring-loaded component (36) provided inside the inner cavity (303).

8. The heat dissipation structure of the electronic control assembly of a forklift electric drive according to claim 7, characterized in that: When the spring-loaded component (36) is at its normal length, it pushes the linkage block (35) closer together so that the two pairs of clamping blocks (34) are tightly attached. The bottom of the linkage block (35) is provided with a locking groove (304). A U-shaped insert (37) is provided below the linkage block (35). The U-shaped insert (37) is restricted by the inner wall of the inner cavity (303) and can only move vertically.

9. The electric control assembly heat dissipation structure of the electric drive of the fork truck according to claim 8, characterized in that: The U-shaped insert (37) is connected to the adjusting screw (38) via a rotating shaft. The U-shaped insert (37) has two upwardly extending protrusions. When the clamping blocks (34) are close together, the U-shaped insert (37) moves upward so that the protrusions can be inserted into the locking grooves (304) of the two clamping blocks (34).

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