Frequency converter housing

Abstract

The utility model belongs to the technical field of frequency converters, and particularly relates to a frequency converter shell, which comprises a first shell and a second shell, the first shell is integrally hollowed to form a first cavity, and a connecting groove is formed in the edge end face of the first shell; the wall surface of the side edge of the second shell is hollowed out to form a second cavity, and the edge of the second shell is provided with a connecting edge corresponding to the connecting groove; a first screw hole is formed in the side edge, corresponding to the connecting groove, of the first shell, a second screw hole is formed in the connecting edge, and the first shell and the second shell are fixed after being connected with the first screw hole and the second screw hole through bolts.

Description

TECHNICAL FIELD

[0001] The utility model belongs to frequency converter technical field especially relates to a frequency converter casing. BACKGROUND

[0002] Variable-frequency Drive (VFD) is application frequency conversion technology and microelectronic technology, through changing motor work power frequency mode to control the electric power control equipment of AC motor. Frequency converter mainly by rectification (AC changes DC), filter, inversion (DC changes AC), brake unit, drive unit, detection unit micro processing unit etc. Frequency converter adjusts output power supply's voltage and frequency by inside IGBT's break, according to the actual need of motor to provide the power supply voltage that it needs, and then reaches the purpose of energy saving, speed regulation, in addition, frequency converter has many protection functions, such as overcurrent, overvoltage, overload protection etc. With the continuous improvement of industrial automation, frequency converter has been very widely used.

[0003] The existing frequency converter is easily damaged and exposes the internal electrical components when it is hit, which may cause safety hazards during use. Therefore, we specially design a frequency converter casing. UTILITY MODEL CONTENTS

[0004] The utility model aims at the above-mentioned technical problem, provides a kind of frequency converter casing, reaches the effect of improving protection effect.

[0005] Therefore, the utility model provides a kind of frequency converter casing, comprising:

[0006] First casing, first casing is hollow to form first cavity, and the rim end surface of first casing is formed with connecting groove;

[0007] Second casing, second casing side wall surface is hollow to form second cavity, and the rim of second casing is provided with connecting edge corresponding to connecting groove;

[0008] Wherein, the side of first casing corresponding to connecting groove is provided with first screw hole, and the connecting edge is provided with second screw hole, and first casing and second casing are fixed by bolt connecting first screw hole and second screw hole.

[0009] In the above technical scheme, further, it further includes:

[0010] Mounting cavity, mounting cavity includes first mounting cavity and second mounting cavity, and first mounting cavity and second mounting cavity are respectively arranged on the two sides of first casing, and second mounting cavity is provided with movable cover;

[0011] The second shell wall between the first mounting cavity and the second mounting cavity is provided with a through wiring port, and the second mounting cavity is provided with an interface end on one side.

[0012] In the above technical solution, further comprising:

[0013] The partition frame body is arranged in the second mounting cavity and away from the interface end on one side, and a plurality of cutting grooves are arranged on the partition frame body.

[0014] The partition frame body divides a circuit connection area from the second mounting cavity, and a plurality of wiring ports are arranged on the circuit connection area.

[0015] In the above technical solution, further comprising:

[0016] The boss is arranged on the end face of the second mounting cavity, and a third threaded hole is arranged on the boss.

[0017] The movable cover is provided with a fourth threaded hole corresponding to the third threaded hole, is connected to the boss, and is fixed by connecting the third threaded hole and the fourth threaded hole through bolts.

[0018] In the above technical solution, further comprising:

[0019] The protection device is arranged in the circuit connection area and between the wiring ports.

[0020] In the above technical solution, further, the protection device comprises:

[0021] The main body is formed with a cavity in the main body, a high-temperature expansion material is arranged in the cavity, and openings are arranged on both sides of the main body, and a film is arranged on the openings.

[0022] The base is provided with a connecting frame body, the base is clamped between the wall surface of the second mounting cavity and the partition protrusion, and the main body is fixed with the connecting frame body.

[0023] The side edge of the main body is provided with a sliding groove corresponding to the connecting frame body.

[0024] In the above technical solution, further comprising:

[0025] The alarm device comprises an inductor and an alarm, the inductor is arranged in the circuit connection area, and the alarm is arranged on the outer wall surface of the second shell.

[0026] The utility model discloses the beneficial effects are:

[0027] 1. Reduce the impact force of frequency converter after being impacted, thereby protecting the electrical element of the inside side of frequency converter, and effectively prolong the service life of frequency converter.

[0028] 2. In the case of line short circuit burning, the fire can be inhibited to a certain extent, and an alarm is sent out. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a structural schematic diagram of the utility model;

[0030] Figure 2 is Figure 1 a side partial section schematic diagram;

[0031] Figure 3 is Figure 1 another side partial section schematic diagram;

[0032] Figure 4 is a first shell schematic diagram of the utility model;

[0033] Figure 5 isa side partial section schematic diagram; Figure 4

[0034] Figure 6 isanother side partial section schematic diagram; Figure 4

[0035] Figure 7 is a second shell schematic diagram of the utility model;

[0036] Figure 8 isa side partial section schematic diagram; Figure 7

[0037] Figure 9 isanother side partial section schematic diagram; Figure 7

[0038] Figure 10 is a protective device schematic diagram of the utility model;

[0039] Figure 11 is a logic diagram of the alarm device of the utility model;

[0040] The marks in the figure are as follows: 1, first shell; 11, first cavity; 12, connecting groove; 2, second shell; 21, second cavity; 22, connecting edge; 3, installation cavity; 31, first installation cavity; 32, second installation cavity; 4, movable cover; 5, first screw hole; 6, second screw hole; 7, interface end; 8, partition frame body; 81, cutting groove; 9, wiring port; 10, boss; 13, third screw hole; 14, fourth screw hole; 15, protective device; 151, main body; 1511, opening; 1512, sliding groove; 152, base; 1521, connecting frame body. DETAILED DESCRIPTION

[0041] With reference to the drawings and embodiments disclosed herein, it will be obvious to those skilled in the art that the embodiments described are only a part of the embodiments of the present application, and not all the embodiments. Based on the embodiments disclosed herein, all other embodiments obtained by a person of ordinary skill in the art shall fall within the scope of the present application.

[0042] Embodiment 1

[0043] The embodiment provides a frequency converter shell, which comprises:

[0044] The first shell 1 is hollowed out as a whole to form a first cavity 11, and a connecting groove 12 is formed on the edge end surface of the first shell 1;

[0045] The second shell 2 is hollowed out on the side wall surface to form a second cavity 21, and a connecting edge 22 is arranged on the edge of the second shell 2 corresponding to the connecting groove 12;

[0046] The first shell 1 is provided with a first screw hole 5 on the side edge corresponding to the connecting groove 12, the connecting edge 22 is provided with a second screw hole 6, and the first shell 1 and the second shell 2 are fixed by connecting the first screw hole 5 and the second screw hole 6 through bolts.

[0047] The embodiment can be seen that the frequency converter shell comprises the first shell 1 and the second shell 2;

[0048] The first shell 1 is a double-layer shell structure, and the first cavity 11 is formed in the first shell 1, the connecting groove 12 is arranged on the side edge end surface of the first shell 1, the connecting groove 12 is communicated into the first cavity 11, and the first screw hole 5 is arranged on the side wall surface of the first shell 1 opposite to the connecting groove 12, and the first shell 1 is used for mounting electrical elements;

[0049] The side edge of the second shell 2 is a double-layer shell structure, and the connecting edge 22 is formed on the side edge end surface of the second shell 2 corresponding to the connecting groove 12, the second screw hole 6 is arranged on the connecting edge 22 corresponding to the first screw hole 5, in use, the second shell 2 is connected with the first shell 1 through the connecting edge 22 cooperating with the connecting groove 12, and is fixed together through bolts after being concentric between the first screw hole 5 and the second screw hole 6, and the second shell 2 is used for mounting a display and a touch device;

[0050] The first shell 1 is provided with a double-layer shell structure to improve the structural strength of the first shell 1, in the process of receiving external force damage, the shell on the outside can protect the electrical elements in the shell on the inside from being damaged, the end surface of the second shell 2 is designed as a single layer, mainly for facilitating the installation of the display and the touch device, and the display and the touch device are convenient to replace after being damaged, so that the maintenance is facilitated, and the side edge of the second shell 2 is designed as a double-layer shell same as the first shell 1, so that the protection capability of the side edge of the first shell 1 is improved;

[0051] The impact force of the frequency converter after being impacted is reduced, thereby protecting electrical elements on the inside of the frequency converter and effectively prolonging the service life of the frequency converter.

[0052] Embodiment 2

[0053] The frequency converter shell provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0054] The mounting cavity 3 includes a first mounting cavity 31 and a second mounting cavity 32, and the first mounting cavity 31 and the second mounting cavity 32 are respectively arranged on two sides of the first shell 1. The second mounting cavity 32 is provided with a movable cover 4.

[0055] The second shell 2 wall surface between the first mounting cavity 31 and the second mounting cavity 32 is provided with a wiring port 9, and one side of the second mounting cavity 32 is provided with an interface end 7.

[0056] It can be seen from the embodiment that the mounting cavity 3 includes the first mounting cavity 31 and the second mounting cavity 32. The first mounting cavity 31 is concavely formed on the inner side wall surface of the first shell 1. The second mounting cavity 32 is concavely formed on the outer side wall surface of the first shell 1. The second mounting cavity 32 is connected with the movable cover 4. One side of the second mounting cavity 32 is formed with the interface end 7, which is used for connecting external lines.

[0057] Due to the double-shell structure of the first shell 1, the cavity exists between the first mounting cavity 31 and the second mounting cavity 32. The wiring port 9 is arranged on the wall surface of the first shell 1 between the first mounting cavity 31 and the second mounting cavity 32. Thus, the electrical elements in the first mounting cavity 31 and the second mounting cavity 32 can be conveniently connected with lines. In the case of line short circuit and burning in the first mounting cavity 31 or the second mounting cavity 32, the cavity can play a blocking effect to prevent the fire from extending to the other side through the wiring port 9.

[0058] Embodiment 3

[0059] The frequency converter shell provided in the embodiment further has the following technical features in addition to the technical solutions in the above embodiments.

[0060] The partition frame 8 is arranged in the second mounting cavity 32 and away from one side of the interface end 7. The partition frame 8 is provided with a plurality of cut grooves 81.

[0061] The partition frame 8 divides a circuit connection area from the second mounting cavity 32. The plurality of wiring ports 9 are arranged on the circuit connection area.

[0062] The embodiment can be seen that the partition frame body 8 is formed in the second mounting cavity 32, the partition frame body 8 separates a circuit connection area from the second mounting cavity 32, and the wiring port 9 is also arranged in the circuit connection area, so that the installation area of the circuit is planned, the circuit management and connection are facilitated, the security risk is reduced, and further, the partition frame body 8 is formed with the cutting groove 81, the circuit is clamped on the cutting groove 81 in the connection process, and the effect of preventing the circuit from winding is achieved.

[0063] Embodiment 4:

[0064] The embodiment provides a frequency converter shell, in addition to comprising the technical scheme in the above embodiment, further has the following technical features.

[0065] The boss 10 is arranged on the end face of the second mounting cavity 32, and the third screw hole 13 is arranged on the boss 10;

[0066] The fourth screw hole 14 is arranged on the movable cover 4 corresponding to the third screw hole 13, the movable cover 4 is connected to the boss 10, and is fixed after the third screw hole 13 and the fourth screw hole 14 are connected by the bolt.

[0067] The embodiment can be seen that the boss 10 is formed on the end face of the second mounting cavity 32, the third screw hole 13 is arranged on the boss 10, the fourth screw hole 14 is arranged on the movable cover 4 corresponding to the third screw hole 13, and in the use process, the movable plate is connected to the second mounting cavity 32 and is attached to the boss 10, and the third screw hole 13 and the fourth screw hole 14 are fixed by the bolt after being concentric.

[0068] Embodiment 5:

[0069] The embodiment provides a frequency converter shell, in addition to comprising the technical scheme in the above embodiment, further has the following technical features.

[0070] The protection device 15 is arranged in the circuit connection area and between the wiring ports 9.

[0071] The embodiment can be seen that the protection device 15 is arranged in the circuit connection area, the wiring port 9 is closed when the short circuit and spontaneous combustion occur in the first mounting cavity 31 or the second mounting cavity 32, and the combustion is blocked.

[0072] Embodiment 6:

[0073] The embodiment provides a frequency converter shell, in addition to comprising the technical scheme in the above embodiment, further has the following technical features.

[0074] The protection device 15 comprises:

[0075] The main body 151 is provided with a cavity formed therein, the cavity is provided with high-temperature expansion material, and the main body 151 is provided with an opening 1511 on both sides, and the opening 1511 is provided with a film;

[0076] The base 152 is provided with a connecting frame body 1521, the base 152 is clamped between the wall surface of the second mounting cavity 32 and the partition protrusion, and the main body 151 is fixed with the connecting frame body 1521.

[0077] The main body 151 is provided with a sliding groove 1512 corresponding to the connecting frame body 1521 on the side.

[0078] It can be seen from the embodiment that the protection device 15 includes a main body 151 and a base 152.

[0079] The main body 151 is provided with a cavity formed therein, and the cavity is provided with an opening 1511 on both sides, the opening 1511 is closed by a film, and the cavity is filled with high-temperature expansion material, in use, the film melts when it encounters high temperature, the high-temperature expansion material flows out of the opening 1511 and expands after being heated, and penetrates into the first mounting cavity 31 and the second mounting cavity 32, thereby achieving the effect of flame retardation.

[0080] The base 152 is installed in the circuit connection area, the base 152 is clamped on the wall surface between the second mounting cavity 32 and the partition protrusion, and is fixed by tight fit friction, further, the base 152 is formed with a connecting frame body 1521, and the main body 151 is provided with a sliding groove 1512 corresponding to the connecting frame body 1521, the main body 151 is detachably installed on the base 152 by cooperating with the connecting frame body 1521 through the sliding groove 1512, thereby facilitating maintenance and replacement (the high-temperature expansion material generally has a shelf life).

[0081] Embodiment 7:

[0082] The embodiment provides a frequency converter shell, in addition to the technical solutions of the above-mentioned embodiments, further having the following technical features.

[0083] The alarm device includes a sensor and an alarm, the sensor is arranged in the circuit connection area, and the alarm is arranged on the outer wall surface of the second shell 2.

[0084] It can be seen from the embodiment that the sensor is a high-temperature sensor, the sensor is used for sensing the temperature change in the first mounting cavity 31 and the second mounting cavity 32, and an alarm is sent through the alarm in the case of fire burning, thereby reminding the user to discover the fire in time.

[0085] The embodiments of the present application are described above with reference to the drawings, and the embodiments and features in the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are only illustrative but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection of the present application.

Claims

1. A frequency converter housing, characterized in that It comprises: The first shell (1) is hollowed out to form a first cavity (11), and a connecting groove (12) is formed on the edge end surface of the first shell (1); The second shell (2) is hollowed out to form a second cavity (21) on the side wall surface, and a connecting edge (22) is provided on the edge of the second shell (2) corresponding to the connecting groove (12); Wherein, the first shell (1) is provided with a first screw hole (5) on the side corresponding to the connecting groove (12), the connecting edge (22) is provided with a second screw hole (6), and the first shell (1) and the second shell (2) are fixed by connecting the first screw hole (5) and the second screw hole (6) through bolts.

2. A frequency converter housing according to claim 1, further characterized by It comprises: The mounting cavity (3) comprises a first mounting cavity (31) and a second mounting cavity (32), and the first mounting cavity (31) and the second mounting cavity (32) are respectively arranged on both sides of the first shell (1). An active cover (4) is arranged on the second mounting cavity (32); Wherein, the second shell (2) wall surface between the first mounting cavity (31) and the second mounting cavity (32) is provided with a wire port (9), and one side of the second mounting cavity (32) is provided with an interface end (7).

3. A frequency inverter housing as defined in claim 2, further characterized by It comprises: The partition frame body (8) is arranged in the second mounting cavity (32) and away from one side of the interface end (7), and a plurality of cut grooves (81) are arranged on the partition frame body (8); Wherein, the partition frame body (8) divides the circuit connection area from the second mounting cavity (32), and a plurality of wire ports (9) are arranged on the circuit connection area.

4. A frequency inverter housing as claimed in claim 3, further characterized by It comprises: The boss (10) is arranged on the end surface of the second mounting cavity (32), and the boss (10) is provided with a third screw hole (13); Wherein, the active cover (4) is provided with a fourth screw hole (14) corresponding to the third screw hole (13), the active cover (4) is connected to the boss (10), and is fixed by connecting the third screw hole (13) and the fourth screw hole (14) through bolts.

5. A frequency converter housing according to claim 4, further characterized by It comprises: The protection device (15) is arranged in the circuit connection area and between the wire ports (9).

6. A frequency changer housing according to claim 5, wherein, The protection device (15) comprises: The main body (151) is formed with a cavity, the cavity is provided with a high-temperature expansion material, and the main body (151) is provided with an opening (1511) on both sides, and the opening (1511) is provided with a film; The base (152) is provided with a connecting frame body (1521), the base (152) is clamped between the wall surface of the second mounting cavity (32) and the partition protrusion, and the main body (151) is fixed with the connecting frame body (1521); Wherein, the main body (151) side corresponding to the connecting frame body (1521) is provided with a sliding groove (1512).

7. A frequency inverter housing as claimed in claim 6, further characterized by It comprises: The alarm device comprises a sensor and an alarm, the sensor is arranged in the circuit connecting area, and the alarm is arranged on the outer side wall surface of the second shell (2).

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