Frequency converter with fool-proof wiring function

Abstract

The utility model discloses a frequency converter with a fool-proof wiring function, and particularly relates to the frequency converter field, the frequency converter comprises a protection box, the inner bottom of the protection box is fixedly connected with a fixing assembly, the upper part of the fixing assembly is connected with a connecting plate in a clamping manner, the upper part of the connecting plate is fixedly connected with a heat dissipation assembly, and the heat dissipation assembly is fixedly connected with the protection box. A frequency converter body is installed above the heat dissipation assembly, a connecting interface is fixedly connected to the right side of the upper portion of the frequency converter body, a sealing plate is movably connected to the upper portion of the protection box, and a grip is fixedly connected to the front end of the upper portion of the sealing plate. According to the utility model, the heat dissipation assembly comprises the heat dissipation plate, so that a user can dissipate heat of the frequency converter body in the protection box through the heat dissipation assembly, and the problem that the service life of the frequency converter body is shortened due to the fact that the temperature in the protection box is difficult to discharge due to lack of a cold source in the protection box when the external temperature is relatively high is avoided; and meanwhile, a refrigerant in the cold water tank can be conveniently replaced, and the heat dissipation efficiency of the heat dissipation assembly is improved.

Description

Technical Field

[0001] The utility model relates to the field of frequency converters, and more specifically, to a frequency converter with fool-proof wiring function. Background Art

[0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the motor's operating power frequency. Before using the frequency converter, the user needs to connect the frequency converter, so a frequency converter with fool-proof wiring function is needed.

[0003] After searching, the existing patent (publication number: CN220272766U) discloses an inverter with an anti-foolproof wiring function, including an inverter body, an upper shell, an anti-foolproof wire outlet baffle, a double-layer terminal block, a lower shell, a fan cover and a side cover; the double-layer terminal block is fixed on the lower shell, and side covers are installed on both sides of the lower shell. A fan cover is also installed on the lower shell, and the lower shell, the side cover and the fan cover form an independent air duct; the anti-foolproof wire outlet baffle includes an upper layer wire outlet plate and a lower layer wire outlet plate, a U-shaped groove with an opening upward is provided on the upper layer wire outlet plate, and a U-shaped groove with an opening downward is provided on the lower layer wire outlet plate, and a prompt baffle is detachably installed in the U-shaped groove. The utility model has the advantages of simple structure, easy installation, small size, high power density, and client space saving. The anti-mistaken wire outlet baffle is also divided into upper and lower layers. Each layer has multiple slots for the outlet wires which correspond one to one with the double-layer terminal block, avoiding the possibility of wrong wiring, completely solving the problem of machine explosion caused by wrong wiring, and improving customer experience.

[0004] During the use of existing inverters, heat is mainly dissipated through the vents on the casing. However, the inverter itself has low heat dissipation efficiency. When the external temperature is too high, the heat dissipation efficiency of the inverter will be further reduced, resulting in excessively high internal temperature of the inverter, which shortens the service life of the inverter.

[0005] Therefore, in order to solve the above problem, a frequency converter with foolproof wiring function is proposed. Meanwhile, the above cited patent documents do not propose any relevant solutions to solve the problem of low heat dissipation efficiency of the frequency converter itself. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present invention provides a frequency converter with fool-proof wiring function to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an inverter with fool-proof wiring function, comprising a protective box, a fixing assembly fixedly connected to the bottom of the interior of the protective box, a connecting plate snap-fittedly connected to the top of the fixing assembly, a heat dissipation assembly fixedly connected to the top of the connecting plate, an inverter body mounted above the heat dissipation assembly, a connection interface fixedly connected to the upper right side of the inverter body, a sealing plate movably connected to the top of the protective box, and a handle fixedly connected to the upper front end of the sealing plate;

[0008] The heat dissipation assembly includes a heat dissipation plate, a fan is fixedly connected to the bottom of the heat dissipation plate, a cold water tank is fixedly connected to the left side of the heat dissipation plate, a circulation pipe is fixedly connected to the inner middle part of the heat dissipation plate, a return pipe is fixedly connected to the front end of the circulation pipe, a return pump is fixedly connected to the outer wall of the return pipe, an outlet pipe is fixedly connected to the rear end of the circulation pipe, and an outlet pump is fixedly connected to the outer wall of the outlet pipe.

[0009] Preferably, a detachable structure is formed between the protective box and the inverter body, and a nameplate is fixedly connected above the connection interface.

[0010] Preferably, the circulation pipe is fixedly connected to the cold water tank via a water outlet pipe, and the circulation pipe is arranged in a continuous "S" shape inside the heat sink.

[0011] Preferably, heat dissipation holes are provided on both the upper and lower sides of the heat dissipation plate, and the heat dissipation plate and the inverter body are correspondingly arranged.

[0012] Preferably, the fixing assembly includes a fixing plate, the right side of the fixing plate is movably connected to a control handle, the output end of the control handle is fixedly connected to a transmission rod through an axial linkage, one side of the transmission rod is fixedly connected to a screw rod, the outer wall of the screw rod is threadedly connected to a moving block, the upper part of the moving block is fixedly connected to an extrusion plate, the inner front end of the fixing plate is fixedly connected to a limiting rod, and the outer wall of the limiting rod is movably connected to the limiting block.

[0013] Preferably, the output end of the control handle passes through the interior of the fixed plate, and a bearing is provided at the connection between the control handle and the fixed plate.

[0014] Preferably, the extrusion plates are symmetrically arranged on the left and right sides of the connecting plate.

[0015] Preferably, the transmission rod and the screw rod are coaxially arranged, and the threads on the left and right sides of the screw rod are arranged in opposite directions.

[0016] Technical effects and advantages of this utility model:

[0017] 1. Compared with the existing technology, the inverter with foolproof wiring function includes a heat sink through the heat dissipation component. The user can use the heat dissipation component to dissipate the heat of the inverter body inside the protective box, so as to avoid the lack of cold source inside the protective box when the external temperature is high, making it difficult for the temperature inside the protective box to be discharged to the outside, resulting in a reduction in the service life of the inverter body.

[0018] 2. Compared with the existing technology, the inverter with fool-proof wiring function includes a fixing plate through the fixing component. The user can fix and release the heat dissipation component through the fixing component, which is convenient for the user to disassemble and replace the heat dissipation component after a long period of use, thereby replacing the refrigerant inside the cold water tank and increasing the heat dissipation efficiency of the heat dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional internal structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the heat dissipation component of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal three-dimensional structure of the fixing component of the utility model.

[0022] Figure 4 For this utility model Figure 3 A in the figure is an enlarged structural diagram.

[0023] The accompanying drawings are marked as follows: 1. Protective box; 2. Heat dissipation assembly; 201. Heat dissipation plate; 202. Fan; 203. Cold water tank; 204. Water outlet pump; 205. Water outlet pipe; 206. Circulation pipe; 207. Return pipe; 208. Return pump; 3. Fixed assembly; 301. Fixed plate; 302. Control handle; 303. Screw; 304. Transmission rod; 305. Extrusion plate; 306. Limit block; 307. Limit rod; 308. Moving block; 4. Sealing plate; 5. Handle; 6. Connection interface; 7. Inverter body; 8. Connection plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] As attached Figure 1 and Figure 2 The inverter with foolproof wiring function shown in the figure includes a protective box 1, a fixing assembly 3 is fixedly connected to the bottom of the interior of the protective box 1, a connecting plate 8 is snap-connected above the fixing assembly 3, a heat dissipation assembly 2 is fixedly connected above the connecting plate 8, an inverter body 7 is mounted above the heat dissipation assembly 2, a connection interface 6 is fixedly connected to the upper right side of the inverter body 7, a sealing plate 4 is movably connected to the upper part of the protective box 1, and a handle 5 is fixedly connected to the upper front end of the sealing plate 4;

[0027] The heat dissipation assembly 2 includes a heat dissipation plate 201, a fan 202 is fixedly connected to the bottom of the heat dissipation plate 201, a cold water tank 203 is fixedly connected to the left side of the heat dissipation plate 201, a circulation pipe 206 is fixedly connected to the middle part of the inner part of the heat dissipation plate 201, a return pipe 207 is fixedly connected to the front end of the circulation pipe 206, a return water pump 208 is fixedly connected to the outer wall of the return water pipe 207, and an outlet pipe 205 is fixedly connected to the rear end of the circulation pipe 206, and an outlet pump 204 is fixedly connected to the outer wall of the outlet pipe 205.

[0028] Among them: the user can use the heat dissipation component 2 to dissipate the heat of the inverter body 7 inside the protective box 1, so as to avoid the lack of a cold source inside the protective box 1 when the external temperature is high, which makes it difficult for the temperature inside the protective box 1 to be discharged to the outside, resulting in a reduction in the service life of the inverter body 7. At the same time, the user can fix and release the heat dissipation component 2 through the fixing component 3, which is convenient for the user to disassemble and replace the heat dissipation component 2 after a long period of use, thereby replacing the refrigerant inside the cold water tank 203 and increasing the heat dissipation efficiency of the heat dissipation component 2.

[0029] Example 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4 As shown, see the following description for details:

[0031] As a preferred embodiment, a detachable structure is formed between the protective box 1 and the inverter body 7, and a nameplate is fixedly connected above the connection interface 6; further, through the structural relationship between the protective box 1 and the inverter body 7, it is convenient for the user to disassemble the inverter body 7 through the protective box 1, and through the nameplate fixedly connected above the connection interface 6, it is convenient for the user to identify the neutral and live wires of the connection interface 6, thereby avoiding the user from connecting the wrong lines.

[0032] As a preferred embodiment, the circulation pipe 206 and the cold water tank 203 are fixedly connected through the water outlet pipe 205, and the circulation pipe 206 is arranged in a continuous "S" shape inside the heat sink 201; further, through the connection relationship between the circulation pipe 206 and the cold water tank 203, the refrigerant inside the cold water tank 203 can be transported to the inside of the circulation pipe 206 through the water outlet pipe 205, and through the distribution relationship between the circulation pipe 206 and the heat sink 201, the contact area between the circulation pipe 206 and the air is larger, thereby increasing the heat dissipation efficiency.

[0033] As a preferred embodiment, heat dissipation holes are provided on both the upper and lower sides of the heat dissipation plate 201, and are correspondingly arranged between the heat dissipation plate 201 and the inverter body 7; further, the heat dissipation holes provided on both the upper and lower sides of the heat dissipation plate 201 facilitate the discharge of cold air inside the heat dissipation plate 201, and the positional relationship between the heat dissipation plate 201 and the inverter body 7 facilitates the user to dissipate heat from the inverter body 7 through the heat dissipation plate 201.

[0034] As a preferred embodiment, the fixing component 3 includes a fixing plate 301, the right side of the fixing plate 301 is movably connected to the control handle 302, the output end of the control handle 302 is fixedly connected to the transmission rod 304 through an axial linkage, one side of the transmission rod 304 is fixedly connected to a screw rod 303, the outer wall of the screw rod 303 is threadedly connected to a moving block 308, the upper part of the moving block 308 is fixedly connected to an extrusion plate 305, the inner front end of the fixing plate 301 is fixedly connected to a limiting rod 307, and the outer wall of the limiting rod 307 is movably connected to the limiting block 306; further, the user can fix and release the heat dissipation component 2 through the fixing component 3, which is convenient for the user to disassemble and replace the heat dissipation component 2 after a long period of use, thereby replacing the refrigerant inside the cold water tank 203 and increasing the heat dissipation efficiency of the heat dissipation component 2.

[0035] As a preferred embodiment, the output end of the control handle 302 passes through the interior of the fixed plate 301, and a bearing is provided at the connection between the control handle 302 and the fixed plate 301; further, through the structural relationship between the control handle 302 and the fixed plate 301, it is convenient for the user to control the internal structure of the fixed plate 301 through the control handle 302, and the bearing provided at the connection between the control handle 302 and the fixed plate 301 reduces the friction of the fixed plate 301 on the control handle 302.

[0036] As a preferred embodiment, the extrusion plate 305 is symmetrically arranged on the left and right sides of the connecting plate 8; further, through the structural relationship between the extrusion plate 305 and the connecting plate 8, it is convenient for the user to fix the connecting plate 8 through the extrusion plate 305, thereby fixing the heat dissipation component 2.

[0037] As a preferred embodiment, the transmission rod 304 and the screw rod 303 are coaxially arranged, and the left and right threads of the screw rod 303 are set in reverse; further, through the connection relationship between the transmission rod 304 and the screw rod 303, the transmission rod 304 can drive the screw rod 303 to rotate, and through the reversely set threads, the moving block 308 can be driven to move in the opposite direction during the rotation of the screw rod 303.

[0038] The working process of this utility model is as follows:

[0039] When the user needs to dissipate heat for the inverter body 7, the user can turn on the water outlet pump 204. Under the action of the water outlet pump 204, the cold water inside the cold water tank 203 can be input into the circulation pipe 206 through the water outlet pipe 205, so that the cold water can reduce the temperature inside the heat sink 201 through the circulation pipe 206. Then the user can turn on the fan 202. Under the action of the fan 202, the cold air inside the heat sink 201 can dissipate heat for the inverter body 7.

[0040] After the heat dissipation assembly 2 has been used for a long time, the user can open the protective box 1 and disassemble the inverter body 7. The user can then rotate the control handle 302. Under the action of the control handle 302, the transmission rod 304 drives the screw rod 303 to rotate. Under the action of the limit rod 307 and the limit block 306, the moving block 308 drives the extrusion plate 305 to release the connection plate 8, making it convenient for the user to disassemble and replace the connection plate 8 and the inverter body 7.

[0041] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A frequency converter with foolproof wiring function, comprising a protection box (1), characterized in that: The inner bottom of the protection box (1) is fixedly connected to a fixing assembly (3), the upper part of the fixing assembly (3) is snap-connected to a connecting plate (8), the upper part of the connecting plate (8) is fixedly connected to a heat dissipation assembly (2), the upper part of the heat dissipation assembly (2) is installed with a frequency converter body (7), the upper right side of the frequency converter body (7) is fixedly connected to a connecting interface (6), the upper part of the protection box (1) is movably connected to a sealing plate (4), and the upper front end of the sealing plate (4) is fixedly connected to a handle (5); The heat dissipation assembly (2) comprises a heat dissipation plate (201), a fan (202) is fixedly connected below the heat dissipation plate (201), a cold water tank (203) is fixedly connected to the left side of the heat dissipation plate (201), a circulation pipe (206) is fixedly connected to the middle part of the interior of the heat dissipation plate (201), a return pipe (207) is fixedly connected to the front end of the circulation pipe (206), a return pump (208) is fixedly connected to the outer wall of the return pipe (207), a water outlet pipe (205) is fixedly connected to the rear end of the circulation pipe (206), and a water outlet pump (204) is fixedly connected to the outer wall of the water outlet pipe (205).

2. The frequency converter with foolproof wiring function according to claim 1, characterized in that: A detachable structure is formed between the protection box (1) and the inverter body (7), and a nameplate is fixedly connected above the connection interface (6).

3. The frequency converter with foolproof wiring function according to claim 1, characterized in that: The circulation pipe (206) and the cold water tank (203) are fixedly connected via the water outlet pipe (205), and the circulation pipe (206) is arranged in a continuous "S" shape inside the heat dissipation plate (201).

4. The frequency converter with foolproof wiring function according to claim 1, characterized in that: The heat dissipation plate (201) is provided with heat dissipation holes on both the upper and lower sides, and the heat dissipation plate (201) and the inverter body (7) are arranged correspondingly.

5. The frequency converter with foolproof wiring function according to claim 1, characterized in that: The fixing assembly (3) comprises a fixing plate (301), the right side of the fixing plate (301) is movably connected to a control handle (302), the output end of the control handle (302) is fixedly connected to a transmission rod (304) through shaft linkage, one side of the transmission rod (304) is fixedly connected to a lead screw (303), the outer wall of the lead screw (303) is threadedly connected to a moving block (308), the upper part of the moving block (308) is fixedly connected to an extrusion plate (305), the inner front end of the fixing plate (301) is fixedly connected to a limit rod (307), and the outer wall of the limit rod (307) is movably connected to the limit block (306).

6. The frequency converter with foolproof wiring function according to claim 5, characterized in that: The output end of the control handle (302) passes through the interior of the fixing plate (301), and a bearing is provided at the connection between the control handle (302) and the fixing plate (301).

7. The frequency converter with foolproof wiring function according to claim 5, characterized in that: The extrusion plates (305) are symmetrically arranged on the left and right sides of the connecting plate (8).

8. The frequency converter with foolproof wiring function according to claim 5, characterized in that: The transmission rod (304) and the screw rod (303) are coaxially arranged, and the threads on the left and right sides of the screw rod (303) are arranged in opposite directions.

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