Frequency converter with moisture-proof function
By introducing a humidity sensor and an electrically operated telescopic baffle system into the frequency converter, the problem of damage to electronic components caused by moisture intrusion is solved, the frequency converter is made moisture-proof, service life is extended and maintenance costs are reduced.
Patent Information
- Application Number
- CN202520011165.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-03
AI Technical Summary
During operation, existing frequency converters are susceptible to damage to electronic components due to external moisture entering the interior through the heat dissipation channels, which affects stability and lifespan, and increases maintenance frequency and costs.
A frequency converter with moisture-proof function was designed. It uses a humidity sensor and an electric telescopic rod in conjunction with a baffle system to monitor and cover the heat dissipation slots in real time to prevent moisture from entering and protect the internal electronic components.
It effectively prevents moisture from entering the inverter, reduces short circuits and corrosion problems, significantly extends equipment life, reduces maintenance and replacement costs, and adapts to different environmental humidity levels.
Smart Images
Figure CN223872522U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to frequency converter technical field especially relates to a frequency converter with moistureproof function. BACKGROUND
[0002] Frequency converter, also known as frequency drive or inverter, is a kind of power regulating device for controlling the speed of AC motor.
[0003] Frequency converter adjusts the speed of motor by changing the frequency and voltage of power supply, so as to realize the accurate speed control of motor, and frequency converter can adjust the running speed of motor according to demand, from zero speed to any value of rated speed, and by adjusting the working speed of motor to match the actual load demand, it can significantly reduce energy consumption, and also can provide softer starting characteristics, reduce current impact during starting, prolong the service life of motor and load equipment, and frequency converter is widely used in various industrial and commercial fields, such as speed control of fan, pump, compressor, conveyor belt, machine tool and other equipment, which has important significance for improving production efficiency, saving energy and improving automation level.
[0004] During the operation of frequency converter, due to the change of environmental humidity, external moisture is easy to enter its inside through the heat dissipation groove of frequency converter, and the invasion of such moisture can cause damage to the electronic components inside frequency converter, such as short circuit, corrosion and other problems, which seriously affects the stability and reliability of frequency converter, and due to the lack of effective moisture-proof measures, the electronic components inside frequency converter are easy to be damaged by moisture, which leads to the shortening of the overall service life of frequency converter, which not only increases the maintenance frequency of frequency converter, but also increases the replacement cost, and brings additional economic burden to users, in view of this, a frequency converter with moisture-proof function is provided to overcome the above defects. CONTENT OF UTILITY MODEL
[0005] The utility model aims at solving the shortcomings in the prior art and provides a frequency converter with moisture-proof function.
[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a frequency converter with moisture-proof function, including the casing, the left and right ends of the casing front side are all provided with the heat dissipation groove, the electric telescopic handle is fixedly connected with the slide plate of electric telescopic handle output end fixed connection, the fixed link of fixed link far away from the slide plate one end is fixedly connected with the linkage rod, the front side top of linkage rod is fixedly connected with the baffle, the baffle inner end surface is fixedly connected with the limit frame, the limit frame inboard is fixedly connected with the drying plate, the left and right sides of casing interior upper portion are fixedly connected with the limit strip, the limit strip inside rear is provided with the slide groove, the humidity sensor is fixedly connected with the controller in the casing interior top front left, the controller is fixedly connected with the humidity sensor.
[0007] As further description of the above technical scheme: the bottom of the slide plate and the bottom rear right of the casing interior are slidably connected, the inner wall of the slide groove in the rear of the limit strip is slidably connected with the outer side of the linkage rod, the outer end surface of the limit strip is in contact with the upper end surface of the baffle, the outer end surface of the baffle is in contact with the inner wall of the casing left and right, which can effectively prevent external moisture from entering the frequency converter, protect the internal electronic components from moisture, reduce the problems of short circuit, corrosion and other problems caused by moisture, significantly prolong the service life of the equipment, reduce the maintenance frequency and replacement cost.
[0008] As further description of the above technical scheme: the humidity sensor is electrically connected with the controller, and the controller is electrically connected with the electric telescopic rod, the humidity sensor detects that the relative humidity in the casing reaches 70% RH, and the electric telescopic rod is extended and started through the controller, and the humidity sensor detects that the relative humidity in the casing reaches 30% RH, and the electric telescopic rod is retracted and closed through the controller, which can monitor the humidity in the casing in real time, if the humidity exceeds the set threshold, the electric telescopic rod is started through the controller, and the electric telescopic rod drives the baffle to completely cover the heat dissipation groove.
[0009] As further description of the above technical scheme: the heat dissipation groove is longitudinally arranged on the front side of the left and right end faces of the casing, and the front and back length of the heat dissipation groove is one third of the front and back length of the casing, the front and back length of the baffle is consistent with the front and back length of the heat dissipation groove, which facilitates the baffle to move to the limit and completely cover the heat dissipation groove, avoiding the moisture from entering the casing interior again.
[0010] As further description of the above technical scheme: the cross section shape of the linkage rod is concave, the number of baffles is two, and the baffles are distributed at the two front end positions of the linkage rod, the left and right length of the linkage rod matches the left and right length of the casing interior, the linkage rod can drive two baffles to move at the same time, reducing the number of electric telescopic rods used, reducing the manufacturing cost.
[0011] As the further description of the above technical scheme: the gap is arranged between the outer end surface of the limiting strip and the inner wall of the left and right sides of the shell, and the width of the gap arranged between the outer end surface of the limiting strip and the inner wall of the left and right sides of the shell matches the thickness of the baffle, and the length of the sliding groove at the rear of the limiting strip corresponds to the front and rear length of the heat dissipation groove, the limiting strip and the sliding groove can limit the front and rear sliding of the baffle, and the deviation of the baffle in the sliding process is avoided, so that the moisture enters the shell through the gap between the heat dissipation groove and the baffle.
[0012] As the further description of the above technical scheme: the area of the drying plate matches the area of the inner side of the limiting frame, and the drying plate is adhered to the inner wall of the limiting frame in a manner of adhesion by adhesive, so that the user can conveniently replace the drying plate in the future, and the downtime due to replacement of the drying plate is reduced.
[0013] The utility model has the following beneficial effects:
[0014] The frequency converter with the moisture-proof function is designed by cooperating the temperature sensor and the electric telescopic rod, so that the device can monitor the humidity inside the shell in real time, if the humidity exceeds the set threshold value, the electric telescopic rod is started by the controller, the electric telescopic rod drives the baffle to completely cover the heat dissipation groove, the moisture is prevented from entering the shell interior through the heat dissipation groove again, the external moisture can be effectively prevented from entering the frequency converter interior, the internal electronic elements are protected from damp, the problems such as short circuit and corrosion caused by the moisture are reduced, the service life of the equipment is remarkably prolonged, the maintenance frequency and replacement cost are reduced, the device can adapt to various different environmental humidity, can effectively protect the electronic elements inside the shell in high humidity or dry environment, and has wide versatility. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the whole structure schematic diagram of the utility model;
[0016] Figure 2 It is the longitudinal section structure schematic diagram of the shell of the utility model;
[0017] Figure 3 It is the shell top end horizontal section and longitudinal overturn 180 degree solid structure schematic diagram of the utility model;
[0018] Figure 4 It is the whole horizontal rotation 180 degree solid structure schematic diagram of the utility model's linkage lever;
[0019] Figure 5 It is the baffle explosion structure schematic diagram of the utility model.
[0020] Legend:
[0021] 1, shell; 2, heat dissipation groove; 3, electric telescopic rod; 4, sliding plate; 5, fixed rod; 6, connecting rod; 7, baffle; 8, drying plate; 9, limiting strip; 10, sliding groove; 11, humidity sensor; 12, controller; 13, limiting frame. DETAILED DESCRIPTION
[0022] REFERENCE Figures 1 to 5 The utility model provides a kind of frequency converter with moisture-proof function, including shell 1, heat dissipation groove 2 is set in the left and right ends of shell 1 front side, electric telescopic rod 3 is fixed by bolt in the lower right side of shell 1 rear end face, the output end of electric telescopic rod 3 is fixed by bolt sliding plate 4, fixed rod 5 is welded in the middle of sliding plate 4 top, one end of fixed rod 5 away from sliding plate 4 is welded connecting rod 6, baffle 7 is welded in the front top end of connecting rod 6, limiting frame 13 is welded in the inner end surface of baffle 7, drying plate 8 is adhered in the inside of limiting frame 13, limiting strip 9 is welded in the left and right sides of shell 1 inside upper side, sliding groove 10 is set in the inside rear of limiting strip 9, humidity sensor 11 is fixed by bolt in the right front top end of shell 1 inside, controller 12 is fixed by bolt in the left front top end of shell 1 inside, sliding plate 4 bottom and shell 1 inside bottom rear right side sliding connection, the inner wall of sliding groove 10 in the rear of limiting strip 9 inside is slidably connected with the outside of connecting rod 6, the outer end surface of limiting strip 9 and the upper side of the inner end surface of baffle 7 contact, the outer end surface of baffle 7 and the left and right inner walls of shell 1 contact, can effectively prevent external moisture from entering the inside of frequency converter, protect internal electronic components from damp, reduce short circuit, corrosion and other problems caused by humidity, significantly prolong the service life of equipment, reduce maintenance frequency and replacement cost.
[0023] As further implementation of the above technical solution: humidity sensor 11 and controller 12 are electrically connected, and controller 12 is electrically connected with electric telescopic rod 3, when the relative humidity in shell 1 reaches 70%RH, humidity sensor 11 controls electric telescopic rod 3 to extend and start through controller 12, and when the relative humidity in shell 1 reaches 30%RH, humidity sensor 11 controls electric telescopic rod 3 to retract and close through controller 12, which can monitor the humidity inside shell 1 in real time, if the humidity exceeds the set threshold, controller 12 starts electric telescopic rod 3, so that electric telescopic rod 3 drives baffle 7 to completely cover heat dissipation groove 2.
[0024] As further implementation of the above technical solution: heat dissipation groove 2 is longitudinally arranged on the front side of the left and right end faces of shell 1 as a whole, and the front and back length of heat dissipation groove 2 is one third of the front and back length of shell 1, the front and back length of baffle 7 is consistent with the front and back length of heat dissipation groove 2, which facilitates the movement of baffle 7 to the limit, so that heat dissipation groove 2 can be completely covered, avoiding the moisture from entering the inside of shell 1 again through heat dissipation groove 2.
[0025] As a further implementation of the above technical solution: the cross section shape of the linkage rod 6 is concave, the number of the baffle 7 is two, and the baffle 7 is distributed at two front end positions of the linkage rod 6, the left and right lengths of the linkage rod 6 match the left and right lengths inside the shell 1, the linkage rod 6 can simultaneously drive the two baffles 7 to move simultaneously, the number of the electric telescopic rod 3 is reduced, and the manufacturing cost is reduced.
[0026] As a further implementation of the above technical solution: the gap is arranged between the outer end surface of the limiting strip 9 and the left and right inner walls of the shell 1, the width of the gap arranged between the outer end surface of the limiting strip 9 and the left and right inner walls of the shell 1 matches the thickness of the baffle 7, the length of the sliding groove 10 inside the rear of the limiting strip 9 corresponds to the front and rear lengths of the heat dissipation groove 2, and the limiting strip 9 and the sliding groove 10 can limit the front and rear sliding of the baffle 7, so that the baffle 7 is prevented from deviating in the sliding process, and the moisture is prevented from entering the shell 1 through the gap between the heat dissipation groove 2 and the baffle 7.
[0027] As a further implementation of the above technical solution: the area of the drying plate 8 matches the area inside the limiting frame 13, and the drying plate 8 is adhered to the inner wall of the limiting frame 13 in a manner of adhesion by adhesive, so that the user can conveniently replace the drying plate 8 in the future, and the downtime due to replacement of the drying plate 8 is reduced.
[0028] Working principle:
[0029] When the utility model is used, the shell 1 is installed at a set position, then the humidity sensor 11 in front of the inside of the shell 1 and the controller 12 are turned on, the humidity sensor 11 monitors the relative humidity inside the shell 1 in real time, if the relative humidity inside the shell 1 exceeds 70% RH, then the controller 12 controls the electric telescopic rod 3 to extend and start, the electric telescopic rod 3 drives the sliding plate 4 at the output end to move from the rear to the front, the fixed rod 5 at the top of the sliding plate 4 drives the baffle 7 to slide from the rear to the front simultaneously through the linkage rod 6, the left and right outer sides of the linkage rod 6 are limited by the sliding groove 10 at the rear of the limiting strip 9 on the left and right sides above the inside of the shell 1, and the baffle 7 slides forward under the limitation of the limiting strip 9, until the outer end surface of the baffle 7 completely covers the heat dissipation groove 2 opened at the left and right ends in front of the shell 1, the heat generated by the electronic elements inside the shell 1 cooperates with the drying plate 8 at the inner end surface of the baffle 7, so that the shell 1 can be quickly dried, when the humidity sensor 11 monitors that the relative humidity inside the shell 1 reaches 30% RH, then the controller 12 controls the electric telescopic rod 3 to retract and close, the baffle 7 returns to the initial position, and the heat in the shell 1 continues to be discharged outward through the heat dissipation groove 2.
[0030] It should be explained finally: above only is the preferred embodiment of the utility model and is not used for limiting the utility model, although the utility model has been explained in detail with reference to foregoing embodiment, for the skilled person in the art, it still can modify the technical scheme recorded in foregoing each embodiment or make equivalent replacement to part technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.
Claims
1. A frequency converter with moisture-proof function, comprising a housing (1), characterized in that: Heat dissipation grooves (2) are provided on both the left and right sides of the front side of the housing (1). An electric telescopic rod (3) is fixedly connected to the lower right side of the rear end face of the housing (1). A sliding plate (4) is fixedly connected to the output end of the electric telescopic rod (3). A fixed rod (5) is fixedly connected to the middle of the top of the sliding plate (4). A linkage rod (6) is fixedly connected to the end of the fixed rod (5) away from the sliding plate (4). A baffle (7) is fixedly connected to the top front side of the linkage rod (6). A limit frame (13) is fixedly connected to the inner end face of the baffle (7). A drying plate (8) is fixedly connected to the inner side of the limit frame (13). Limit strips (9) are fixedly connected to the upper left and right sides inside the housing (1). A sliding groove (10) is provided at the rear inside the limit strip (9). A humidity sensor (11) is fixedly connected to the right front side of the top inside the housing (1). A controller (12) is fixedly connected to the left front side of the top inside the housing (1).
2. The frequency converter with moisture-proof function according to claim 1, characterized in that: The bottom of the sliding plate (4) is slidably connected to the rear right side of the bottom of the housing (1). The inner wall of the sliding groove (10) at the rear of the limiting strip (9) is slidably connected to the outer side of the connecting rod (6). The outer end face of the limiting strip (9) is in contact with the upper part of the inner end face of the baffle (7). The outer end face of the baffle (7) is in contact with the inner walls of the left and right sides of the housing (1).
3. A frequency converter with moisture-proof function according to claim 1, characterized in that: The humidity sensor (11) is electrically connected to the controller (12), and the controller (12) is electrically connected to the electric telescopic rod (3). When the humidity sensor (11) detects that the relative humidity inside the housing (1) reaches 70%RH, it controls the electric telescopic rod (3) to extend and start through the controller (12). When the humidity sensor (11) detects that the relative humidity inside the housing (1) reaches 30%RH, it controls the electric telescopic rod (3) to retract and close through the controller (12).
4. A frequency converter with moisture-proof function according to claim 1, characterized in that: The heat dissipation groove (2) is arranged longitudinally on the front side of the left and right ends of the shell (1), and the front-to-back length of the heat dissipation groove (2) is one-third of the front-to-back length of the shell (1). The front-to-back length of the baffle (7) is the same as the front-to-back length of the heat dissipation groove (2).
5. A frequency converter with moisture-proof function according to claim 1, characterized in that: The cross-sectional shape of the linkage rod (6) is concave. There are two baffles (7), which are distributed at the two front ends of the linkage rod (6). The left and right lengths of the linkage rod (6) match the left and right lengths inside the housing (1).
6. A frequency converter with moisture-proof function according to claim 1, characterized in that: A gap is provided between the outer end face of the limiting strip (9) and the inner walls of the left and right sides of the housing (1), and the width of the gap between the outer end face of the limiting strip (9) and the inner walls of the left and right sides of the housing (1) matches the thickness of the baffle (7). The length of the sliding groove (10) at the rear of the limiting strip (9) corresponds to the front and rear length of the heat dissipation groove (2).
7. A frequency converter with moisture-proof function according to claim 1, characterized in that: The area of the drying plate (8) matches the inner area of the limiting frame (13), and the drying plate (8) is bonded to the inner wall of the limiting frame (13) by adhesive bonding.