Modularized cooling, sealing and quick-connecting device for marine frequency converter

Abstract

The utility model discloses a marine frequency converter modularization cooling sealing quick connection device, relates to the frequency converter technology field, and comprises a sealing pedestal, a bidirectional screw rod is rotatably connected in the sealing pedestal, the end portion of the bidirectional screw rod is fixedly connected with a knob, two groups of clamping mechanisms are arranged in the sealing pedestal, and the two groups of clamping mechanisms are fixedly connected with the knob. The clamping mechanism comprises a supporting sliding plate connected with the sealing base in a sliding mode, the top face of the supporting sliding plate is fixedly connected with two clamping vertical rods, and the top end of each clamping vertical rod is connected with a supporting sliding rod in a sliding mode. Through the arrangement of the clamping vertical rod, the L-shaped clamping rod, the buffer pad and other parts, the clamping vertical rod and the L-shaped clamping rod can clamp and fix the frequency converter shell under the rotation of the bidirectional screw rod, and the clamping state of the frequency converter can be canceled by reversely rotating the bidirectional screw rod, so that the working intensity of mounting and dismounting the frequency converter is greatly reduced, and the working efficiency is improved. A worker can conveniently carry out regular maintenance work on the frequency converter, and the use convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of frequency converter technology, specifically a modular cooling and sealing quick-connect device for marine frequency converters. Background Technology

[0002] A frequency converter, also known as a inverter, is a power control device that uses frequency conversion technology and microelectronics to control an AC motor by changing the frequency of the power supply to the motor. Marine frequency converters are used on ships; in ship electric propulsion systems, speed-regulating frequency converters are a key technology determining the motor control performance.

[0003] According to patent CN210780510U, a novel cooling device for a marine frequency converter is disclosed, including a ship body and a frequency converter body. The frequency converter body includes a heat conductor, a power module, a power equipment cabinet, and a control box. A reinforced structure cofferdam is installed at the bottom of the ship body, and the heat conductor is installed inside the cofferdam through a sealing material.

[0004] The above solution can achieve precise control of the power module and suppress interference between the weak electrical signals of the control unit and the strong electromagnetic interference of the power unit. However, the above solution is inconvenient to quickly disassemble and assemble the frequency converter during implementation, which requires a lot of time for disassembly and installation during the regular maintenance of the frequency converter, reducing maintenance efficiency. To address this issue, we provide a modular cooling and sealing quick-connect device for marine frequency converters. Summary of the Invention

[0005] The purpose of this invention is to provide a modular cooling and sealing quick-connect device for marine frequency converters to solve the problems raised in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular cooling and sealing quick-connect device for marine frequency converters, comprising a sealing base, a bidirectional lead screw rotatably connected inside the sealing base, a knob fixedly connected to the end of the bidirectional lead screw, two sets of clamping mechanisms provided inside the sealing base, each clamping mechanism comprising a support slide plate slidably connected to the sealing base, two clamping uprights fixedly connected to the top surface of the support slide plate, a support slide rod slidably connected to the top of each clamping upright, an L-shaped clamping rod fixedly connected to the top surface of each support slide rod, and a buffer pad fixedly connected to the outer surface of the clamping upright and the L-shaped clamping rod.

[0007] Preferably, the clamping mechanism further includes a set of fixed links, both ends of which are fixedly connected to the clamping upright or L-shaped clamping rod. The fixed links enhance the stability of the clamping mechanism.

[0008] Preferably, a spring is sleeved on the outer surface of the support slide rod, and the two ends of the spring are fixedly connected to the clamping upright and the L-shaped clamping rod, respectively. The spring plays the role of pulling the L-shaped clamping rod.

[0009] Preferably, the bottom surface of the supporting slide plate is fixedly connected to an internally threaded slider, the bidirectional lead screw passes through the internally threaded slider and is threadedly connected to the internally threaded slider, the internally threaded slider is slidably connected to the sealing base, and the bidirectional lead screw can drive the internally threaded slider to slide inside the sealing base.

[0010] Preferably, a fixing ring is fixedly connected inside the sealing base, and a set of limiting strips is fixedly connected to the outer surface of the fixing ring. The limiting strips serve to clamp and fix the bidirectional lead screw.

[0011] Preferably, a fastening nut is slidably connected to the outer surface of the bidirectional lead screw, the fastening nut being adapted to the limiting strip, and the fastening nut providing support for the clamping of the limiting strip.

[0012] Preferably, a set of fixing plates is fixedly connected to the outer surface of the sealing base, and a set of heat dissipation plates is fixedly installed on the bottom surface of the sealing base. The heat dissipation plates play a role in improving the heat dissipation and cooling effect of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application incorporates components such as a bidirectional lead screw, a clamping upright, an L-shaped clamping rod, and a buffer pad. The clamping upright and the L-shaped clamping rod can clamp and fix the inverter housing under the rotation of the bidirectional lead screw, and the clamping state of the inverter can be released by rotating the bidirectional lead screw in the opposite direction. This greatly reduces the workload of installing and disassembling the inverter, facilitates the regular maintenance of the inverter by the staff, and improves the ease of use of the device.

[0015] 2. This application improves the overall connection stability of the clamping mechanism by setting up components such as buffer pads and fixed connecting rods. The fixed connecting rods can improve the overall connection stability of the clamping mechanism, and the buffer pads can provide a buffering effect for the clamping mechanism to clamp the inverter, so as to avoid the clamping mechanism from causing wear on the surface of each module of the inverter during the clamping process, increase the friction between the clamping mechanism and the inverter, and increase the clamping stability of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the internal structure of the sealing base of this utility model;

[0018] Figure 3 This is a schematic diagram of the clamping mechanism of this utility model;

[0019] Figure 4 This is a partial structural cross-sectional view of the present invention.

[0020] Numbering on the map:

[0021] 1. Sealed base; 2. Two-way lead screw; 3. Knob;

[0022] 4. Clamping mechanism; 401. Support slide plate; 402. Clamping upright; 403. Support slide bar; 404. L-shaped clamping rod; 405. Buffer pad; 406. Fixing link; 407. Spring; 408. Internal threaded slider;

[0023] 5. Retaining ring; 6. Limiting strip; 7. Fastening nut; 8. Fixing plate; 9. Heat dissipation plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a technical solution for a modular cooling and sealing quick-connect device for marine frequency converters.

[0026] Please see Figure 1 The system includes a sealing base 1, which provides support for the installation of the frequency converter. The inner bottom wall of the sealing base 1 is made of copper material with good thermal conductivity, which can improve the heat conduction and cooling efficiency of the frequency converter and improve the protective sealing of the bottom of the frequency converter, preventing water from flowing in the hull and entering the bottom of the frequency converter, thus ensuring the normal operation of the frequency converter. The structural structures of each component shown in the attached drawings of this application are all illustrative examples. The specific real-time method should be combined with the functional requirements, assembly conditions and process limitations in the actual application scenario, and the structural parameters, size specifications and connection methods should be adaptively adjusted and optimized.

[0027] A set of fixing plates 8 are fixedly connected to the outer surface of the sealing base 1, and a set of heat dissipation plates 9 are fixedly installed on the bottom surface of the sealing base 1. The fixing plates 8 make it convenient for workers to use bolts to fix the sealing base 1 to a suitable position in the hull. The heat dissipation plates 9 are made of copper alloy and are distributed in a cone shape with staggered lengths on the bottom surface of the sealing base 1. The bottom end of the heat dissipation plates 9 protrudes from the hull and contacts the water below. The heat generated during the operation of the frequency converter can be conducted to the water below the hull through the sealing base 1 and the heat dissipation plates 9, thereby realizing the rapid heat dissipation and cooling of the device. This reduces the space occupied by heat dissipation equipment such as pipes or air ducts and the increased cost, and effectively improves the cooling effect of the device. The bottom surface of the heat dissipation plates 9 is galvanized, which can reduce the corrosion effect of the heat dissipation plates 9 during use. The sealing base 1 and the hull have good sealing performance, which can prevent water from flowing into the hull through the gap between the heat dissipation plates 9 and the hull.

[0028] Please see Figure 1 , Figure 2 and Figure 4 The sealing base 1 is internally connected to a bidirectional lead screw 2, and a knob 3 is fixedly connected to the end of the bidirectional lead screw 2. The surface of the knob 3 is treated with friction to facilitate the rotation of the knob 3 by the operator. The threads at both ends of the bidirectional lead screw 2 are opposite in direction. When the operator rotates the knob 3, the knob 3 can drive the bidirectional lead screw 2 to rotate inside the sealing base 1. The rotation of the bidirectional lead screw 2 can drive the internal thread sliders 408 connected at both ends to slide in opposite directions, so that the two clamping mechanisms 4 can clamp and fix the installed frequency converter, which facilitates the quick installation and disassembly of the frequency converter.

[0029] A fixing ring 5 is fixedly connected inside the sealing base 1. A set of limiting strips 6 are fixedly connected to the outer surface of the fixing ring 5. A fastening nut 7 is slidably connected to the outer surface of the bidirectional lead screw 2. The fastening nut 7 is adapted to the limiting strips 6. The end of the limiting strip 6 has a certain angled inclined sliding surface design. The inner wall of the end of the fastening nut 7 has an inclined design adapted to the limiting strip 6. When the fastening nut 7 is rotated into the interior of the sealing base 1, its end will continuously squeeze the end of the limiting strip 6, thereby causing the limiting strip 6 to deform to a certain extent under force. The surface of the bidirectional lead screw 2 is provided with a biting ring. The end of the limiting strip 6 has biting teeth adapted to the biting ring. When the limiting strip 6 is compressed, its end biting teeth will abut against the biting ring, thereby fixing the bidirectional lead screw 2 and preventing the bidirectional lead screw 2 from rotating and affecting the clamping and fixing of the inverter by the device.

[0030] Please see Figure 1 , Figure 2 and Figure 3The sealing base 1 is equipped with two sets of clamping mechanisms 4. The clamping mechanism 4 includes a support slide plate 401 that is slidably connected to the sealing base 1. An internal threaded slider 408 is fixedly connected to the bottom surface of the support slide plate 401. A bidirectional lead screw 2 passes through the internal threaded slider 408 and is threadedly connected to the internal threaded slider 408. The internal threaded slider 408 is slidably connected to the sealing base 1. The rotation of the bidirectional lead screw 2 can drive the two internal threaded sliders 408 to slide towards or away from each other, thereby driving the support slide plate 401 to move closer or further away from each other. The support slide plate 401 provides a stable support effect for the clamping operation of the other components of the clamping mechanism 4 on the modular frequency converter. A baffle is installed on the surface of the support slide plate 401 and slides in contact with the top surface of the sealing base 1 to prevent the internal threaded slider 408 from tilting during the sliding process and to ensure the normal use of the clamping mechanism 4.

[0031] Two clamping rods 402 are fixedly connected to the top surface of the support slide plate 401. Each clamping rod 402 has a support slide rod 403 slidably connected to its top end. Each support slide rod 403 has an L-shaped clamping rod 404 fixedly connected to its top surface. The sliding of the support slide plate 401 can drive the clamping rods 402 to slide. The clamping rods 402 drive the L-shaped clamping rods 404 to move through the support slide rods 403. Through the setting of the L-shaped clamping rods 404 and the clamping rods 402, the frequency converter placed in the sealed base 1 can be stably clamped, thereby solving the problem that a large number of bolts are needed for fixing the frequency converter during the installation and disassembly process, and greatly reducing the efficiency of frequency converter installation and disassembly.

[0032] A spring 407 is fitted on the outer surface of the support slide rod 403. The two ends of the spring 407 are fixedly connected to the clamping upright rod 402 and the L-shaped clamping rod 404, respectively. The spring 407 has a certain elastic potential energy, which can provide resistance for the sliding of the support slide rod 403. The operator can pull the L-shaped clamping rod 404 to clamp the top surface of the frequency converter, so that the device can stably clamp the frequency converter within a certain height range. The small vibration caused by the characteristics of the spring 407 itself will be offset by the friction generated when the buffer pad 405 clamps the frequency converter, and will not affect the clamping stability of the clamping mechanism 4.

[0033] Both the clamping upright 402 and the L-shaped clamping rod 404 have buffer pads 405 fixedly connected to their outer surfaces. The buffer pads 405 are made of rubber and are fixed to the positions where the clamping upright 402 and the L-shaped clamping rod 404 contact the frequency converter with adhesive. This provides a buffering effect for the clamping mechanism 4 to clamp the frequency converter, so as to avoid wear on the surface of each module of the frequency converter during the clamping process. At the same time, the buffer pads 405 can also effectively increase the friction between the clamping mechanism 4 and the frequency converter, and increase the clamping stability of the device.

[0034] The clamping mechanism 4 also includes a set of fixed connecting rods 406. Both ends of each fixed connecting rod 406 are fixedly connected to the clamping upright 402 or the L-shaped clamping rod 404. The fixed connecting rods 406 are used to fix the two clamping uprights 402 or the L-shaped clamping rods 404 together, thereby improving the overall connection stability of the clamping mechanism 4. This allows the clamping mechanism 4 to fix the frequency converter placed in the sealed base 1, making it convenient for workers to quickly disassemble and assemble the frequency converter, thus improving the efficiency of maintenance work.

[0035] Working principle: In use, the operator first inserts the heat sink 9 into the hole left inside the ship and uses bolts to fix the fixing plate 8 inside the ship. Then, the inverter is placed in the middle of the sealed base 1, and the fastening nut 7 is unscrewed from the sealed base 1. Then, the knob 3 is turned. The rotation of the knob 3 drives the bidirectional lead screw 2 to rotate. The rotation of the bidirectional lead screw 2 drives the two internal thread sliders 408 to move closer to each other. The internal thread sliders 408 drive the support slide plate 401 to move closer to each other. The movement of the support slide plate 401 drives the clamping upright 402 and the L-shaped clamping rod 404 to clamp the two sides and the top surface of the inverter. After clamping is completed, the operator screws the fastening nut 7 into the sealed base 1 to ensure the stability of the device in fixing the inverter. When the operator wants to disassemble the inverter, he only needs to turn the knob 3 in reverse according to the above steps, which greatly improves the installation and disassembly efficiency of the inverter.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A modular cooling and sealing quick-connect device for marine frequency converters, characterized in that: The sealing base (1) is characterized in that: a bidirectional lead screw (2) is rotatably connected inside the sealing base (1), a knob (3) is fixedly connected to the end of the bidirectional lead screw (2), and two sets of clamping mechanisms (4) are provided inside the sealing base (1). The clamping mechanism (4) includes a support slide plate (401) slidably connected to the sealing base (1). Two clamping rods (402) are fixedly connected to the top surface of the support slide plate (401). A support slide rod (403) is slidably connected to the top of each clamping rod (402). An L-shaped clamping rod (404) is fixedly connected to the top surface of each support slide rod (403). A buffer pad (405) is fixedly connected to the outer surface of the clamping rod (402) and the L-shaped clamping rod (404).

2. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 1, characterized in that: The clamping mechanism (4) further includes a set of fixed connecting rods (406), both ends of which are fixedly connected to the clamping upright (402) or the L-shaped clamping rod (404).

3. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 1, characterized in that: A spring (407) is fitted on the outer surface of the support slide rod (403), and the two ends of the spring (407) are fixedly connected to the clamping upright rod (402) and the L-shaped clamping rod (404) respectively.

4. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 1, characterized in that: The bottom surface of the support slide plate (401) is fixedly connected to an internal threaded slider (408). The bidirectional screw (2) passes through the internal threaded slider (408) and is threadedly connected to the internal threaded slider (408). The internal threaded slider (408) is slidably connected to the sealing base (1).

5. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 1, characterized in that: The sealing base (1) is internally fixedly connected to a fixing ring (5), and the outer surface of the fixing ring (5) is fixedly connected to a set of limiting strips (6).

6. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 5, characterized in that: The outer surface of the bidirectional lead screw (2) is slidably connected to a fastening nut (7), which is adapted to the limiting strip (6).

7. The modular cooling and sealing quick-connect device for marine frequency converters according to claim 1, characterized in that: A set of fixing plates (8) are fixedly connected to the outer surface of the sealing base (1), and a set of heat dissipation plates (9) are fixedly installed on the bottom surface of the sealing base (1).

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