Mute unit of permanent magnet machine

Abstract

The utility model provides a permanent magnet machine mute unit which comprises a machine frame, the machine frame is composed of a cold cavity, a middle cavity and a hot cavity, and the cold cavity and the hot cavity are symmetrically arranged on the two sides of the middle cavity. A centrifugal fan and a power source for driving the centrifugal fan are arranged in the middle cavity; a plurality of electronic devices for regulating and controlling the power source are fixedly arranged in the cold cavity; a silencer is fixedly arranged in the heat cavity, and the silencer is communicated with the output end of the power source. The silencer is arranged at the output end of the power source and used for reducing noise generated by the output end of the power source, and overall noise control can be effectively guaranteed; the air duct in the rack is designed, and the structure of the permanent magnet motor mute unit is synchronously arranged according to the air duct, so that the heat dissipation condition in the permanent magnet motor mute unit can be effectively enhanced, and stable operation of the permanent magnet motor mute unit is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanent magnet machine quiet equipment technical field especially, relates to a permanent magnet machine quiet unit. BACKGROUND

[0002] Traditional quiet unit, air duct singleness leads to the insufficient air intake in quiet unit, makes quiet unit unable to obtain sufficient cooling medium for heat exchange, causes the oil high temperature in quiet unit. Meanwhile during quiet unit working, the noise is big, reduces the power of quiet unit seriously to reduce the noise, has many aspects disadvantages. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem of overcoming the defects of prior art, the utility model proposes a permanent magnet machine quiet unit, the noise end of power source is handled, and the internal space and structure of the unit are arranged, and the heat dissipation of internal components is completed by the air duct.

[0004] To solve the above technical problem, the utility model adopts the technical scheme of a permanent magnet machine quiet unit, characterized by comprising a rack, the rack is composed of a cold cavity, an intermediate cavity and a hot cavity, the cold cavity and the hot cavity are symmetrically arranged on both sides of the intermediate cavity;

[0005] A centrifugal fan and a power source for driving the centrifugal fan are arranged in the intermediate cavity.

[0006] A plurality of electronic devices for regulating and controlling the power source are fixedly arranged in the cold cavity.

[0007] A silencer is fixedly arranged in the hot cavity, and the silencer is in communication with the output end of the power source.

[0008] Further, the hot cavity and the intermediate cavity are separated by a partition, a heat exhaust air duct is fixedly arranged in the intermediate cavity based on the partition, the heat exhaust air duct is fixedly arranged above the centrifugal fan, a first heat exhaust air pipe is fixedly arranged in the heat exhaust air duct, one end of the first heat exhaust air pipe is in communication with the output end of the power source, and the other end is in communication with the silencer.

[0009] Further, it further includes a second heat exhaust air pipe, one end of the second heat exhaust air pipe extends into the silencer, and the other end is fixed on the side wall of the hot cavity; the heat exhaust air duct penetrates and communicates the intermediate cavity and the hot cavity, an air inlet slot is formed on the side of the heat exhaust air duct facing the centrifugal fan, and a plurality of heat dissipation holes are formed on the side wall of the hot cavity.

[0010] Further, a first air inlet is arranged on the lower section of the cold cavity and faces the intermediate cavity, and auxiliary air inlet channels are arranged on both sides of the cold cavity, and the electronic device is fixedly arranged in the lower section of the cold cavity.

[0011] Further, a second air inlet is arranged on the bottom of the intermediate cavity, the auxiliary air inlet is arranged below the power source, and the power source is a single-cylinder diesel engine.

[0012] Further, a plurality of handles are fixedly arranged above the rack.

[0013] Further, a plurality of sound-absorbing cottons are fixedly arranged in the rack.

[0014] Compared with the prior art, the beneficial effects of the utility model include:

[0015] 1) The muffler is arranged on the output end of the power source to reduce the noise generated by the output end of the power source, and the sound-absorbing cotton is arranged in the rack to further reduce the noise in the permanent magnet machine, so that the overall noise control can be effectively ensured.

[0016] 2) The air duct in the rack is designed, and the structure of the permanent magnet machine silent unit is arranged according to the air duct, so that the heat dissipation in the permanent magnet machine silent unit can be effectively enhanced, and stable operation can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] The disclosure of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference numerals are used to refer to the same parts. Among them:

[0018] Figure 1 The internal front view structure of the permanent magnet machine silent unit is schematically shown;

[0019] Figure 2 The internal partial cross-sectional structure of the permanent magnet machine silent unit is schematically shown;

[0020] Figure 3 The internal overall structure of the permanent magnet machine silent unit is schematically shown;

[0021] Figure 4 The bottom structure of the permanent magnet machine silent unit is schematically shown.

[0022] Reference numerals in the drawings: 1-rack, 2-cold cavity, 3-intermediate cavity, 4-hot cavity, 5-power source, 6-muffler, 7-heat exhaust air duct, 8-first heat exhaust air pipe, 9-second heat exhaust air pipe, 10-first air inlet, 11-auxiliary air inlet channel, 12-second air inlet. DETAILED DESCRIPTION

[0023] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0024] A type of permanent magnet silent unit, such as Figure 1 As shown, the device includes a frame 1, which consists of a cold cavity 2, an intermediate cavity 3, and a hot cavity 4. The cold cavity 2 and the hot cavity 4 are symmetrically arranged on both sides of the intermediate cavity 3. A centrifugal fan and a power source 5 for driving the centrifugal fan are installed in the intermediate cavity 3. Several electronic devices for controlling the power source 5 are fixedly installed in the cold cavity 2, such as controlling the opening and closing or speed of the power source 5. A silencer 6 is fixedly installed in the hot cavity 4. The silencer 6 is connected to the output end of the power source 5 and is used to discharge the hot air generated by the power source 5 to the outside of the permanent magnet silent unit after being processed by the silencer 6.

[0025] The aforementioned hot cavity 4 and intermediate cavity 3 are separated by a partition. To enhance heat dissipation inside the permanent magnet motor silent unit, a heat exhaust duct 7 is fixedly installed within the partition and intermediate cavity 3. The heat exhaust duct 7 is fixedly installed above the centrifugal fan. Figure 2 As shown, a first row of hot air pipes 8 is fixedly installed in the heat exhaust duct 7. One end of the first row of hot air pipes 8 is connected to the output end of the power source 5, and the other end is connected to the silencer 6.

[0026] It also includes a second row of hot air ducts 9, one end of which extends into the aforementioned silencer 6, and the other end is fixed to the side wall of the hot cavity 4. The exhaust duct 7 runs through and connects the intermediate cavity 3 and the hot cavity 4. An air inlet is provided on the side of the exhaust duct 7 facing the centrifugal fan, and several heat dissipation holes are provided on the side wall of the hot cavity 4. This arrangement allows the hot air delivered from the output end of the power source 5 to first enter the silencer 6 through the first row of hot air ducts 8, and then be discharged from the permanent magnet silent unit through the second row of hot air ducts 9. The hot air in the intermediate cavity 3 dissipates heat through the aforementioned air inlet and the heat dissipation holes on the side wall of the hot cavity 4, that is, the heat in the intermediate cavity 3 is dissipated through the hot cavity 4.

[0027] Due to the heat exchange requirements within the permanent magnet motor's silent unit, air must be drawn in through the cold cavity 2 and then sent to the intermediate cavity 3 for heat exchange before being discharged through the hot cavity 4. It is worth noting that the cold cavity 2 and the intermediate cavity 3 are also separated by a partition, such as... Figure 3As shown, a first air inlet 10 is arranged on the lower section of the cold cavity 2 and faces the intermediate cavity 3, a first air inlet channel is arranged below the cold cavity 2, and auxiliary air inlet channels 11 are arranged on both sides of the cold cavity 2 to increase the air inlet amount of the cold cavity 2, and electronic devices including inverters, starting batteries, panel wire harnesses and voltage stabilizers are fixedly arranged in the lower section of the cold cavity 2, and the electronic devices are greatly affected by heat, so they are fixedly arranged at the first air inlet channel and the auxiliary air inlet channels 11 to directly receive heat exchange of the cold air outside the permanent magnet silent unit to complete the heat dissipation process.

[0028] In order to strengthen the heat dissipation process of the power source 5, as shown, Figure 4 A second air inlet 12 is arranged at the bottom of the intermediate cavity 3 and is located below the power source 5, the second air inlet 12 arranged below the power source 5 increases the air flow in the intermediate cavity 3, supplements the insufficient air inlet amount of the internal cavity of the silent unit, and the purpose is to better take away the heat generated in the internal cavity to provide a better working environment and power consumption performance for the power source; at the same time, due to the existence of the centrifugal fan, at least two air channels in the intermediate cavity 3 can complete the heat dissipation process, and the power source 5 is a single-cylinder diesel engine, and the oil tank is fixedly arranged at the upper portion of the rack 1.

[0029] It is worth mentioning that the side of the rack 1 is closed by a side plate, a slot is arranged on the side plate and extends along the height direction of the side plate, the lower section of the slot coincides with the auxiliary air inlet channel 11, the air inlet is completed by the slot and the auxiliary air inlet channel 11, a plurality of handles are fixedly arranged on the upper portion of the rack 1, the permanent magnet machine silent unit can be lifted to move the position, and a plurality of sound-absorbing cottons are fixedly arranged in the rack 1 to improve the noise reduction effect of the permanent magnet machine silent unit.

[0030] The muffler is arranged at the output end of the power source 5 to reduce the noise generated at the output end of the power source 5, the sound-absorbing cottons are arranged in the rack 1 to further reduce the noise in the permanent magnet machine, and the overall noise control can be effectively guaranteed; the air channel in the rack 1 is designed, and the structure of the permanent magnet machine silent unit is arranged according to the air channel, so that the heat dissipation in the permanent magnet machine silent unit can be effectively enhanced, and stable operation can be guaranteed.

[0031] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A silent permanent magnet generator unit, characterized in that, Includes a frame (1), which is composed of a cold cavity (2), an intermediate cavity (3) and a hot cavity (4), wherein the cold cavity (2) and the hot cavity (4) are symmetrically arranged on both sides of the intermediate cavity (3); A centrifugal fan and a power source (5) for driving the centrifugal fan are provided in the intermediate cavity (3); A number of electronic devices for controlling the power source (5) are fixedly installed in the cold cavity (2); A silencer (6) is fixedly installed in the hot cavity (4), and the silencer (6) is connected to the output end of the power source (5).

2. The permanent magnet silent generator unit according to claim 1, characterized in that, The hot cavity (4) and the intermediate cavity (3) are separated by a partition. A heat exhaust duct (7) is fixedly installed in the partition and the intermediate cavity (3). The heat exhaust duct (7) is fixedly installed on the centrifugal fan. A first heat exhaust pipe (8) is fixedly installed in the heat exhaust duct (7). One end of the first heat exhaust pipe (8) is connected to the output end of the power source (5), and the other end is connected to the silencer (6).

3. The silent permanent magnet generator unit according to claim 2, characterized in that, It also includes a second row of hot air pipes (9), one end of which extends into the silencer (6), and the other end is fixed to the side wall of the hot cavity (4); the exhaust air duct (7) runs through and connects the intermediate cavity (3) and the hot cavity (4), and an air inlet is provided on the side of the exhaust air duct (7) facing the centrifugal fan, and several heat dissipation holes are provided on the side wall of the hot cavity (4).

4. The silent permanent magnet generator unit according to claim 1, characterized in that, A first air inlet (10) is provided in the lower section of the cold cavity (2) facing the middle cavity (3), and auxiliary air inlet channels (11) are provided on both sides of the cold cavity (2). The electronic device is fixedly installed in the lower section of the cold cavity (2).

5. The permanent magnet silent generator unit according to claim 4, characterized in that, A second air inlet (12) is also provided at the bottom of the intermediate cavity (3), and the auxiliary air inlet is located below the power source (5), which is a single-cylinder diesel engine.

6. The silent permanent magnet generator unit according to claim 1, characterized in that, Several handles are fixedly installed above the frame (1).

7. The silent permanent magnet generator unit according to claim 1, characterized in that, Several sound-absorbing cottons are fixedly installed inside the frame (1).

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