Waterproof structure of elevator frequency converter
By designing the waterproof structure of the box and bottom plate, using air flow and drainage systems to prevent water from entering, the problem of the elevator inverter being susceptible to moisture in harsh environments is solved, and the stable operation and safety guarantee of the inverter is achieved.
Patent Information
- Application Number
- CN202323298402.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-05
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-05
AI Technical Summary
The elevator inverter is susceptible to moisture and moisture in harsh environments, resulting in equipment damage and safety hazards, and it is difficult for the existing technology to effectively prevent waterproofing.
A waterproof structure including the box, bottom plate, air inlet, air outlet, inclined partition and drainage hole is designed to prevent water from entering through air flow and drainage system, and combine sealed connection coils and aviation plugs to enhance the waterproofing of the inverter and Ventilation effect.
Effectively prevent water and humid air from entering the inverter, ensure stable operation of the equipment and personnel safety, and extend the service life of the equipment.
Smart Images
Figure CN222234654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator frequency converters, in particular to a waterproof structure of an elevator frequency converter. Background Art
[0002] In the field of industrial control, frequency converters, as an important power control device, are widely used in various mechanical equipment, including elevators. In elevator frequency converters, the output frequency of the inverter can be adjusted through the control circuit to change the operating speed and output torque of the elevator.
[0003] However, the inverter is composed of many circuits and copper bars. Once water enters, it may cause short circuits in the circuit board and cause the machine to explode. In certain working environments, such as high temperature, high humidity, rain and snow, the inverter is more susceptible to water and moisture, increasing the risk of equipment damage. Especially for elevator inverters, due to their special working properties, the waterproof effect of the inverter directly affects the safe operation of the equipment. If the elevator fails during operation, it will not only affect work efficiency, but may also threaten the life safety of the staff.
[0004] Therefore, there is an urgent need to provide a waterproof structure for an elevator frequency converter to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and provide a waterproof structure for an elevator inverter, which can provide waterproof protection for the internal components of the inverter while ventilating and cooling the interior of the inverter, thereby ensuring the stable operation of the elevator inverter.
[0006] The purpose of this utility model is achieved through the following technical solutions:
[0007] A waterproof structure for an elevator inverter comprises a box body and a base plate, wherein the box body is arranged on the base plate, an air inlet and an air outlet are opened on one side of the box body, an air inlet baffle and an air outlet baffle are vertically arranged in the box body, the air inlet baffle is opposite to the air inlet, the air outlet baffle is opposite to the air outlet, the air inlet baffle and the air outlet baffle are both inclined, a drainage hole is provided on the base plate, a partition is horizontally arranged above the drainage hole, the partition comprises a horizontal portion and an inclined portion, one side edge of the inclined portion is connected to the horizontal portion, and the other side edge is inclined downward toward the side wall of the box body and abuts against the side wall of the box body, and a drainage outlet is provided at the connection between the inclined portion and the side wall of the box body.
[0008] As a preferred technical solution of the utility model, a support plate is horizontally extended from the horizontal portion, the support plate is abutted against the side wall of the box body, and a radiator is placed on the support plate.
[0009] As a preferred technical solution of the utility model, the bottom plate is also provided with a wire inlet and outlet, and a sealing connection coil is provided on the wire inlet and outlet.
[0010] As a preferred technical solution of the utility model, a cooling fan and a fan bracket for fixing the cooling fan are provided on one side of the radiator close to the air outlet, and the cooling fan is fixed on the fan bracket.
[0011] As a preferred technical solution of the utility model, a sealing groove is provided at the connection between the box body and the bottom plate, and a sealing strip is provided in the sealing groove.
[0012] As a preferred technical solution of the utility model, a waterproof aviation plug is also provided on one side wall of the box body.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] The utility model provides an air inlet and an air outlet, an air inlet baffle and an air outlet baffle, wind and air enter from the air inlet, are guided through the air inlet baffle into the interior of the inverter to dissipate heat, and then are guided through the air outlet baffle by the rotation of the cooling fan to go out from the air outlet; through the air inlet baffle and the air outlet baffle, the incoming water can be guided to the drain port on the partition, and then discharged to the outside of the inverter through the drain holes on the bottom plate, so that the interior of the inverter achieves a waterproof effect, and water or humid air is prevented from entering the interior of the inverter from the air inlet and the air outlet, so that the inverter is more ventilated, waterproof and moisture-proof, effectively ensuring the stable operation of the elevator inverter equipment, and also ensuring the life safety of the elevator staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a left-side structural schematic diagram of the interior of the frequency converter of the utility model.
[0016] Figure 2 It is a structural schematic diagram of the utility model.
[0017] Figure 3 It is a schematic diagram of the internal structure of the inverter of the utility model from the right side.
[0018] Figure 4 It is a side view of the utility model.
[0019] Figure 5 This is a bottom view of the utility model
[0020] The above drawings include the following reference numerals:
[0021] 1. Box body, 2. Bottom plate, 3. Air inlet, 4. Air outlet, 5. Air inlet baffle, 6. Air outlet baffle, 7. Drain hole, 8. Partition, 9. Horizontal part, 10. Inclined part, 11. Drain port, 12. Support plate, 13. Radiator, 14. Wire inlet and outlet, 15. Sealing coil, 16. Cooling fan, 17. Fan bracket, 18. Sealing strip, 19. Waterproof aviation plug. DETAILED DESCRIPTION
[0022] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.
[0023] The specific implementation process of the utility model is as follows:
[0024] like Figures 1 to 5 As shown, a waterproof structure of an elevator inverter includes a box body 1 and a base plate 2, the box body 1 is arranged on the base plate 2, an air inlet 3 and an air outlet 4 are opened on one side of the box body 1, an air inlet baffle 5 and an air outlet baffle 6 are vertically arranged in the box body 1, the air inlet baffle 5 is opposite to the air inlet 3, the air outlet baffle 6 is opposite to the air outlet 4, the air inlet baffle 5 and the air outlet baffle 6 are both inclined, a drainage hole 7 is provided on the base plate 2, a partition plate 8 is horizontally arranged above the drainage hole 7, the partition plate 8 includes a horizontal portion 9 and an inclined portion 10, one side edge of the inclined portion 10 is connected to the horizontal portion 9, and the other side edge is inclined downward toward the side wall of the box body 1 and abuts against the side wall of the box body 1, and a drainage hole 11 is provided at the connection between the inclined portion 10 and the side wall of the box body 1.
[0025] Specifically, by setting the air inlet 3 and the air outlet 4, the air inside the inverter flows, reducing the heat of the radiator 13, and by setting the air inlet baffle 5 and the air outlet baffle 6, the water entering is guided to flow out to the drain port 11, so as to achieve a waterproof effect, and prevent water or humid air from entering the inverter from the air inlet 3 and the air outlet 4, so as to prevent the components inside the inverter from getting damp. The heat dissipation space is above the partition 8, and the drainage space is below the partition 8. The air inlet baffle 5 and the air outlet baffle 6 are arranged above the partition 8. Wind, water and air enter the inverter from the air inlet 3, and the water is guided through the air inlet baffle 5, and flows downward along the air inlet baffle 5 to the partition 8. Since the inclined portion 10 of the partition 8 is arranged to be inclined downward, and the drain port 11 is arranged on the inclined portion 10, the water will flow along the inclined direction of the inclined portion 10, flow into the drainage space through the drain port 11, and be discharged through the drainage hole 7. Wind and air are guided through the air inlet baffle 5 to pass through the heat dissipation space, and then guided through the air outlet baffle 6 to exit from the air outlet 4. There are multiple drainage ports 11 on the inclined portion 10. In other embodiments, one side of the inclined portion 10 is connected to the horizontal portion 9, and the other side is inclined downward toward the side wall of the box body 1. A drainage groove is formed between the inclined portion 10 and the side wall of the box body 1. Water is guided through the air inlet baffle 5 and flows downward along the air inlet baffle 5 to the partition 8. Since the inclined portion 10 of the partition 8 is inclined downward, water will flow into the drainage space along the inclined portion 10 through the drainage groove, and then be discharged through the drainage hole 7. The inverter is waterproofed to prevent water or humid air from entering the inverter from the air inlet and outlet, making the inverter more ventilated, waterproof and moisture-proof, effectively ensuring the stable operation of the elevator inverter equipment, and also ensuring the life safety of the elevator staff.
[0026] In the embodiment of the utility model, the horizontal portion 9 is horizontally extended with a support plate 12, the support plate 12 is in contact with the side wall of the box body 1, and a radiator 13 is placed on the support plate 12. Specifically, the heat generated inside the elevator inverter is dissipated into the air by the radiator 13, and the heat generated by the internal components of the inverter is conducted away by the radiator 13, and then the surface of the radiator 13 is dissipated through the air flow, so that the radiator 13 achieves a cooling effect. The radiator 13 is located in the heat dissipation space, and the wind and air enter from the air inlet 3, and are guided through the air inlet baffle 5 to blow through the radiator 13, helping the radiator 13 to dissipate heat, and then are guided through the air outlet baffle 6 to dissipate from the air outlet 4, bringing the heat on the radiator 13 to the outside, reducing the heat of the radiator 13, thereby ensuring the stable operation of the inverter.
[0027] In the embodiment of the utility model, the bottom plate 2 is also provided with an inlet and outlet port 14, and a sealing connection coil 15 is provided on the inlet and outlet port 14. Specifically, the inlet and outlet port 14 is used to allow the cable of the frequency converter to be connected to an external power source or device through the inlet and outlet port 14. The sealing connection coil 15 is made of polymer materials such as silicone rubber, has excellent electrical properties and waterproof properties, plays a role in sealing and insulation, and can prevent water from entering the interior of the frequency converter, thereby protecting the internal electronic components and circuit boards. Secondly, the sealing connection coil 15 can also prevent the influence of external electromagnetic interference and electric shock on the frequency converter, and ensure the stability and reliability of the equipment.
[0028] Furthermore, in order to accelerate the air flow inside the inverter, in the embodiment of the utility model, a cooling fan 16 and a fan bracket 17 for fixing the cooling fan 16 are provided on one side of the radiator 13 close to the air outlet 4, and the cooling fan 16 is fixed on the fan bracket 17. Specifically, the cooling fan 16 is arranged between the radiator 13 and the air outlet baffle 6. By adding the cooling fan 16, the ventilation effect inside the box body 1 is better, the air flow in the heat dissipation space is accelerated, and the heat on the radiator 13 is accelerated.
[0029] In the embodiment of the utility model, a sealing groove is provided at the connection between the box body 1 and the bottom plate 2, and a sealing strip 18 is provided in the sealing groove to further enhance the waterproofness of the inverter and prevent water from entering the interior of the inverter.
[0030] In an embodiment of the utility model, a waterproof aviation plug 19 is also provided on one side wall of the box body 1, which can easily connect the lines and has good waterproof performance. It can effectively prevent moisture from entering the inside of the plug, thereby avoiding circuit short circuits or other faults caused by moisture erosion and extending the service life of the equipment.
[0031] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A waterproof structure for an elevator inverter, characterized in that: The invention comprises a box body (1) and a bottom plate (2), wherein the box body (1) is arranged on the bottom plate (2), an air inlet (3) and an air outlet (4) are provided on one side of the box body (1), an air inlet baffle (5) and an air outlet baffle (6) are vertically arranged inside the box body (1), the air inlet baffle (5) is opposite to the air inlet (3), the air outlet baffle (6) is opposite to the air outlet (4), and the air inlet baffle (5) and the air outlet baffle (6) are both arranged obliquely. The bottom plate (2) is provided with a drainage hole (7), a partition (8) is transversely arranged above the drainage hole (7), the partition (8) comprises a horizontal portion (9) and an inclined portion (10), one side of the inclined portion (10) is connected to the horizontal portion (9), and the other side is inclined downward toward the side wall of the box body (1) and abuts against the side wall of the box body (1), and a drainage port (11) is provided at the connection between the inclined portion (10) and the side wall of the box body (1).
2. The waterproof structure of an elevator inverter according to claim 1, characterized in that: The horizontal portion (9) is horizontally extended with a support plate (12), the support plate (12) abuts against the side wall of the box body (1), and a radiator (13) is placed on the support plate (12).
3. The waterproof structure of an elevator inverter according to claim 1, characterized in that: The bottom plate (2) is also provided with a wire inlet and outlet (14), and a sealing connection coil (15) is provided on the wire inlet and outlet (14).
4. The waterproof structure of an elevator inverter according to claim 2, characterized in that: A cooling fan (16) and a fan bracket (17) for fixing the cooling fan (16) are provided on one side of the radiator (13) close to the air outlet (4); the cooling fan (16) is fixed on the fan bracket (17).
5. The waterproof structure of an elevator inverter according to claim 1, characterized in that: A sealing groove is provided at the connection between the box body (1) and the bottom plate (2), and a sealing rubber strip (18) is provided in the sealing groove.
6. The waterproof structure of an elevator inverter according to claim 1, characterized in that: A waterproof aviation plug (19) is also provided on one side wall of the box body (1).