Frequency converter with efficient heat dissipation

Abstract

The frequency converter comprises an upper cover, a side cover, a radiator, a control board, a driving board and a wiring terminal strip, the side cover is fixedly connected with the radiator, the upper cover is clamped at the upper end of the side cover and the upper end of the radiator to form a vertical shell, the control board is transversely fixed in the shell, the driving board is vertically fixed in the shell, and the wiring terminal strip is fixedly connected with the side cover. The wiring terminal strip is embedded in one side of the upper cover. The upper cover, the side cover and the radiator are assembled into the vertical shell which is of a vertical structure, the control board and the driving board are transversely and vertically fixed in the shell respectively, the wiring terminal strip is embedded in one side of the upper cover, the layout is reasonable, space can be effectively saved, and installation is convenient; in addition, the radiator can account for more than 60% of the surface area of the whole shell, has a large radiating area, can effectively reduce heat accumulation, and achieves efficient radiating.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter technical field, specifically a kind of high-efficiency heat dissipation frequency converter. BACKGROUND

[0002] Frequency converter is applied frequency conversion technology and microelectronic technology, through the way of changing motor working power frequency to control ac motor's electric power control equipment, mainly including shell, control panel, drive board and terminal block etc., wherein, control panel and drive board are both fixed in the inside of shell horizontally.

[0003] Since IGBT module, large capacitor and other electronic devices are integrated on drive board, therefore, drive board arranged horizontally has high requirement to the internal space of shell;In addition, in order to facilitate heat dissipation, the bottom of drive board is usually connected with radiator, in order to avoid that dust and humid air outside affect the normal work of internal electronic components, shell is usually divided into two layers, upper layer space is used to accommodate the above-mentioned electronic components, and lower layer space is used to accommodate radiator, i.e. built-in radiator, for this, heat dissipation hole or heat dissipation grating needs to be arranged on four sides of shell, so that the size of shell is large, which obviously cannot be applied to some occasions with limited installation space. SUMMARY

[0004] The utility model aims at overcoming the defects and deficiencies of prior art, and provides a kind of high-efficiency heat dissipation frequency converter, vertical structure is used to save space and facilitate installation;In addition, it has larger heat dissipation area, can effectively reduce heat accumulation, to realize high-efficiency heat dissipation.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of high-efficiency heat dissipation frequency converter, upper cover, side cover, radiator, control panel, drive board and terminal block, characterized by: the side cover is fixedly connected with the radiator, the upper cover is connected in the upper end of the side cover and the radiator, and is formed into vertical shell, the control panel is fixed in the inside of the shell horizontally, the drive board is fixed in the inside of shell vertically, and the terminal block is embedded in one side of the upper cover.

[0007] Further, the radiator is made of cast aluminum, including bottom plate and side plate, a plurality of heat dissipation fins are integrally connected to the outer wall of the side plate, a fan is installed on the outer wall of the side plate, and a plurality of holes are provided on the side plate for exposing capacitors on the drive board;One end of the top of the side plate is integrally connected with a first protruding column, and a first screw hole is formed in the end face of the first protruding column and extends inward;Second protruding columns are integrally connected to the inner wall of the side plate at both ends, and a second screw hole is formed in the end face of each second protruding column and extends inward.

[0008] Further, one end of the control board is provided with a first through hole corresponding to the first screw hole, a first screw is sequentially passed through the first through hole from top to bottom and screwed into the first screw hole.

[0009] Further, both ends of the inner wall of the side cover are integrally connected with third protruding columns, and the outer wall of the side cover is respectively provided with a counterbore corresponding to each third protruding column; both ends of the driving plate are provided with second through holes, and a second screw is sequentially passed through the corresponding counterbore and second through hole from outside to inside and screwed into the corresponding second screw hole.

[0010] Further, the inner side of the bottom plate is provided with a first clamping groove, and the bottom of the side cover is integrally connected with a first clamping buckle which can be clamped into the first clamping groove.

[0011] Further, both ends of the side cover are provided with first positioning grooves, and both ends of the side plate are integrally connected with first positioning pieces, and each first positioning piece can be inserted into the corresponding first positioning groove.

[0012] Further, the top of the side cover and the side plate is provided with a second positioning groove which is distributed in the circumferential direction, and each second positioning groove is integrally connected with a second clamping buckle on the groove wall.

[0013] Further, the bottom of the upper cover is integrally connected with a second positioning piece which is distributed in the circumferential direction, each second positioning piece can be inserted into the corresponding second positioning groove, and the second positioning pieces on both sides are provided with a second clamping groove, and each second clamping buckle can be clamped into the corresponding second clamping groove.

[0014] Further, the upper cover is provided with a window corresponding to the input key and output display on the control board and the exposed wiring terminal row, and one side of the upper cover is provided with a through hole for the wiring terminal row to externally connect the wires.

[0015] Further, the top inner wall of the side cover is integrally connected with a rib, and the rib abuts against the bottom surface of the wiring terminal row and is used for supporting the wiring terminal row from the lower side.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] The utility model discloses a vertical shell is assembled by upper cover, side cover and radiator, is vertical structure, and control board and driving plate are fixed in the inside of shell respectively horizontally and vertically, and the wiring terminal row is embedded on one side of the upper cover, so the layout is reasonable, space can be effectively saved, and installation is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1The utility model discloses an external structure schematic diagram of the utility model Figure 1 .

[0019] Figure 2 The utility model discloses an external structure schematic diagram of the utility model Figure 1 The structure amplification schematic diagram of part A in

[0020] Figure 3 The utility model discloses an external structure schematic diagram of the utility model Figure 2 .

[0021] Figure 4 The utility model discloses an external structure schematic diagram of the utility model Figure 3 The structure amplification schematic diagram of part B in

[0022] Figure 5 The utility model discloses an internal structure schematic diagram of the utility model

[0023] Figure 6 The utility model discloses an internal structure schematic diagram of the utility model Figure 5 The structure amplification schematic diagram of part C in

[0024] Figure 7 The utility model discloses a partial structure schematic diagram of the utility model internally

[0025] Figure 8 The utility model discloses a structure schematic diagram of the upper cover in the utility model

[0026] Figure 9 The utility model discloses a structure schematic diagram of the utility model internally Figure 8 The structure amplification schematic diagram of part D in

[0027] Figure 10 The utility model discloses a structure schematic diagram of the side cover in the utility model Figure 1 .

[0028] Figure 11 The utility model discloses a structure schematic diagram of the utility model internally Figure 10 The structure amplification schematic diagram of part E in

[0029] Figure 12 The utility model discloses a structure schematic diagram of the side cover in the utility model Figure 2 .

[0030] Figure 13 The utility model discloses a structure schematic diagram of the radiator in the utility model Figure 1 .

[0031] Figure 14 The utility model discloses a structure schematic diagram of the utility model internally Figure 13 The structure amplification schematic diagram of part F in

[0032] Figure 15 The utility model discloses a structure schematic diagram of the radiator in the utility model Figure 2 . Specific implementation

[0033] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0034] Referring to Figures 1-15 A high-efficiency heat dissipation frequency converter, an upper cover 1, a side cover 2, a radiator 3, a control panel 4, a driving panel 5 and a terminal block 6, the side cover 2 is fixedly connected with the radiator 3, the upper cover 1 is clamped on the upper end of the side cover 2 and the radiator 3, and a box-shaped shell is formed, the control panel 4 is fixedly arranged in the inside of the shell in a transverse direction, the driving panel 5 is fixedly arranged in the inside of the shell in a vertical direction, and the terminal block 6 is embedded on one side of the upper cover 1.

[0035] In the utility model, the radiator 3 adopts a cast aluminum piece, comprising a bottom plate 31 and a side plate 32, a plurality of heat dissipation fins 33 are integrally connected to the outer wall of the side plate 31, a fan 7 is installed on the outer wall of the side plate 32, and a plurality of holes 9 are formed in the side plate 32 for exposing capacitors 8 on the driving panel 5; one end of the top of the side plate 32 is integrally connected with a first protruding column 10, and a first screw hole (not shown in the figure) extending inward is arranged on the end face of the first protruding column 10; the inner wall of the side plate 32 is integrally connected with a second protruding column 11 at both ends, and a second screw hole 12 extending inward is arranged on the end face of each second protruding column 11.

[0036] Therefore, by installing the fan 7 on the outer wall of the side plate 32, the heat conducted to the heat dissipation fin group 33 can be quickly taken away, and the heat dissipation is further efficient.

[0037] In addition, by arranging the holes 9 on the side plate 32, the capacitors 8 on the driving panel 5 can pass through the holes 9 and be exposed between the heat dissipation fin groups 33, so that the layout of electronic components including capacitors 8 of large size is facilitated, the space is saved, and the heat dissipation of the capacitors 8 is facilitated.

[0038] It should be noted that, in order to isolate the outside dust and humid air from entering the inside of the shell, a sealing ring should be arranged at the gap between the capacitors 8 and the inner wall of the hole 9.

[0039] In the utility model, one end of the control panel 4 is provided with a first through hole (not shown in the figure) corresponding to the first screw hole, a first screw 13 passes through the first through hole from top to bottom and is screwed into the first screw hole, so as to realize the transverse fixation of the control panel 4 in the inside of the shell.

[0040] In the utility model, the inner wall of side cover 2 is integrally connected with third convex column 14 at both ends, and the outer wall of side cover 2 is respectively provided with counter bore 15 corresponding to each third convex column 14; the both ends of driving plate 5 are respectively provided with second through hole (not shown in the drawing), and second screw (not shown in the drawing) sequentially passes through corresponding counter bore 15 and second through hole from outside to inside and is screwed into corresponding second screw hole 12.

[0041] Therefore, side cover 2 is fixedly connected with radiator 3, and driving plate 5 is vertically fixed in the inside of shell, and two goals are achieved at one stroke.

[0042] In the utility model, the inner side of bottom plate 31 is provided with first clamping groove 16, and the bottom of side cover 2 is integrally connected with first clamping buckle 17 which can be clamped into first clamping groove 16.

[0043] Therefore, when assembling side cover 2 and radiator 3, first clamping buckle 17 is clamped into first clamping groove 16, so that the bottom of side cover 2 and radiator 3 are fixed.

[0044] In the utility model, the both ends of side cover 2 are provided with first positioning groove 18, and the both ends of side plate 32 are integrally connected with first positioning piece 19, and each first positioning piece 19 can be respectively inserted into corresponding first positioning groove 18.

[0045] Therefore, when assembling side cover 2 and radiator 3, each first positioning piece 19 is respectively inserted into corresponding first positioning groove 18, so that side cover 2 and radiator 3 are relatively combined and fixed.

[0046] In the utility model, the top of side cover 2 and side plate 32 is provided with second positioning groove 20 which is distributed in the circumferential direction, and the groove wall of each second positioning groove 20 is integrally connected with second clamping buckle 21.

[0047] In the utility model, the bottom of upper cover 1 is integrally connected with second positioning piece 22 which is distributed in the circumferential direction, each second positioning piece 22 can be respectively inserted into corresponding second positioning groove 20, second clamping groove 23 is arranged on the second positioning piece 22 at both sides, and each second clamping buckle 21 can be clamped into corresponding second clamping groove 23.

[0048] Therefore, when installing upper cover 1, each second positioning piece 22 is respectively inserted into corresponding second positioning groove 20, and each second clamping buckle 21 is clamped into corresponding second clamping groove 23, so that upper cover 1 is clamped to the upper end of side cover 2 and radiator 3.

[0049] In the utility model, window 26 corresponding to input button 24 and output display 25 on control panel 4 and wiring terminal row 6 is arranged on upper cover 1, and the side of upper cover 1 is provided with through hole 27 for external wiring of wiring terminal row 6.

[0050] Therefore, by setting the window 26 on the upper cover 1, the input button 24 and the output display 25 on the control panel 4 and the wiring terminal row 6 are exposed through the corresponding window 26 respectively, so as to facilitate use and operation.

[0051] In addition, by setting the through hole 27 on one side of the upper cover 1, wiring is facilitated.

[0052] It should be noted that, in order to isolate the outside dust, humid air into the inside of the shell, a panel should be pasted on the upper cover 1 covering the input button 24 and the output display 25.

[0053] In the utility model, the top inner wall of the side cover 2 is integrally connected with the rib 28, and the rib 28 abuts against the bottom surface of the wiring terminal row 6, so as to realize the support of the wiring terminal row 6 from the downside.

[0054] The utility model will be further described below in combination with the drawings:

[0055] Since the utility model adopts the upper cover 1, the side cover 2 and the radiator 3 to assemble the vertical shell, that is, the vertical structure, the control panel 4 and the driving panel 5 are fixed horizontally and vertically in the inside of the shell respectively, and the wiring terminal row 6 is embedded in one side of the upper cover 1, after the side cover 2 and the radiator 3 are fixedly connected, the capacitor 8 on the driving panel 5 is exposed between the heat dissipation fin groups 33 through the opening 9, so that it is beneficial to the layout of the electronic components including the control panel 4, the driving panel 5 and the large-size capacitor 8, and space can be effectively saved, and installation is facilitated.

[0056] In addition, the radiator 3 is used as part of the shell, and can occupy more than 60% of the surface area of the entire shell, has a large heat dissipation area, can quickly dissipate the heat generated by each electronic component during work, effectively reduces heat accumulation, and realizes efficient heat dissipation.

[0057] Although the present specification is described according to the embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that can be understood by those skilled in the art.

[0058] Therefore, the above only describes the preferred embodiments of the present application, and is not used to limit the implementation scope of the present application; that is, various equivalent transformations made according to the claim scope of the present application are all within the protection scope of the claims of the present application.

Claims

1. A high-efficiency heat-dissipation frequency converter, comprising a top cover, a side cover, a heat sink, a control board, a drive board and a terminal block, characterized in that: The side cover is fixedly connected with the radiator, the upper cover is connected with the upper end of the side cover and the radiator, forming a rectangular shell, the control board is fixed horizontally in the shell, the driving board is fixed vertically in the shell, and the terminal block is embedded in one side of the upper cover.

2. The high-efficiency heat-dissipation frequency converter according to claim 1, characterized in that: The radiator is made of cast aluminum and includes a bottom plate and a side plate, a plurality of heat dissipation fins are integrally connected to the outer wall of the side plate, a fan is installed on the outer wall of the side plate, and the side plate is provided with a hole for exposing the capacitor on the driving board; one end of the top of the side plate is integrally connected with a first protruding column, and the end face of the first protruding column is provided with a first screw hole extending inward; the inner wall of the side plate is integrally connected with a second protruding column at both ends, and the end face of each second protruding column is provided with a second screw hole extending inward.

3. The high-efficiency heat-dissipation frequency converter according to claim 2, characterized in that: One end of the control board is provided with a first through hole corresponding to the first screw hole, and a first screw passes through the first through hole from top to bottom and is screwed into the first screw hole.

4. The high-efficiency heat-dissipation frequency converter according to claim 2, characterized in that: The inner wall of the side cover is integrally connected with a third protruding column at both ends, and the outer wall of the side cover is respectively provided with a counterbore corresponding to each third protruding column; the driving board is provided with a second through hole at both ends, and a second screw passes through the corresponding counterbore and the second through hole from outside to inside in sequence and is screwed into the corresponding second screw hole.

5. The high-efficiency heat-dissipation frequency converter according to claim 2, characterized in that: The inner side of the bottom plate is provided with a first clamping groove, and the bottom of the side cover is integrally connected with a first clamping buckle which can be clamped into the first clamping groove.

6. The high-efficiency heat-dissipation frequency converter according to claim 2, characterized in that: Both ends of the side cover are provided with a first positioning groove, and both ends of the side plate are integrally connected with a first positioning piece, and each first positioning piece can be inserted into the corresponding first positioning groove.

7. The high-efficiency heat-dissipation frequency converter according to claim 2, characterized in that: The top of the side cover and the side plate is provided with a second positioning groove distributed along the circumference, and a second clamping buckle is integrally connected to the groove wall of each second positioning groove.

8. The high-efficiency heat-dissipation frequency converter according to claim 7, characterized in that: The bottom of the upper cover is integrally connected with a second positioning piece distributed along the circumference, each second positioning piece can be inserted into the corresponding second positioning groove, and a second clamping groove is provided on the second positioning piece at both sides, and each second clamping buckle can be clamped into the corresponding second clamping groove.

9. The high-efficiency heat-dissipation frequency converter according to claim 1 or 8, characterized in that: The upper cover is provided with a window corresponding to the input keys and output displays on the control board and the terminal block exposed outside, and one side of the upper cover is provided with a through hole for the terminal block to connect the wires.

10. The high heat dissipating frequency converter of claim 1, wherein: The top inner wall of the side cover is integrally connected with a rib, and the rib abuts against the bottom surface of the terminal block to support the terminal block from the bottom.

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