Variable frequency motor of energy-saving fan

Abstract

The utility model relates to the technical field of valve installation, in particular to a variable frequency motor of an energy-saving fan, which comprises a motor shell, one side of the motor shell is connected with a variable frequency mechanism, and the inside of the variable frequency mechanism is respectively connected with a variable frequency mechanism shell, a heat dissipation fan I and a heat dissipation ring. The frequency conversion mechanism is arranged in the motor shell, the frequency conversion mechanism is arranged in the motor shell, the side, close to the output end of the motor, of the frequency conversion mechanism is provided with a rectifier, a filter and an inverter in a connected mode, and the other side of the motor shell is provided with a rear-mounted heat dissipation circular pipe in a connected mode. The frequency conversion mechanism shell, the first heat dissipation fan and the heat dissipation ring are arranged in the frequency conversion mechanism, and the second heat dissipation fan is arranged in the rear-mounted heat dissipation circular pipe. The heat dissipation capability of the motor is effectively improved, heat dissipation is further enhanced through the design of a heat dissipation ring and the combination of heat conduction strips, ventilation hole grooves and heat dissipation strips, the stability of the motor during high-load operation is ensured, the temperature of the motor is effectively controlled through circulation of a cooling liquid circulation pump water circulation pipe, and the service life of the motor is prolonged. And the energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy -conserving motor technical field, concretely is a variable frequency motor of energy -consaving fan. BACKGROUND

[0002] Motor refers to the electromagnetic device that realizes electric energy conversion or transmission according to electromagnetic induction law, wherein energy -conserving motor refers to the motor with high efficiency compared with general standard motor, and common energy -conserving motor generally adopts new motor design, new technology and new material, improves output efficiency by reducing electromagnetic energy, heat energy and mechanical energy loss, and compared with standard motor, the energy -conserving effect of using high -efficient motor is very obvious, and most of the existing motors do not have frequency conversion technology, which makes the motor use cost high, and the heat dissipation effect is poor, so that the motor will be damaged due to the high temperature of long time work. UTILITY MODEL CONTENTS

[0003] The utility model discloses a variable frequency motor of energy -consaving fan to solve the problem in the background art.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: including motor shell, its characterized in that: the one side of motor shell is connected with variable frequency mechanism, the other side of motor shell is connected with rear -mounted heat dissipation round pipe, the inside of rear -mounted heat dissipation round pipe is connected with heat dissipation fan no.

[0005] The variable frequency mechanism includes the variable frequency mechanism shell that sets up on one side of motor shell, and the rectifier, filter and inverter are connected in the variable frequency mechanism shell respectively.

[0006] Preferably, the surface of the motor shell is connected with four groups of protective plates.

[0007] Preferably, the surface of the transmission shaft is connected with a limiting rod, and one end of the transmission shaft is provided with a screw thread.

[0008] Preferably, the heat dissipation ring includes a heat conduction strip connected in the variable frequency mechanism, a plurality of ventilation hole grooves are formed in the surface of the heat conduction strip, and a plurality of heat dissipation strips are connected between the clamps extended from the heat conduction strip.

[0009] Preferably, the water circulation pipe surface connection is provided with a stabilizing ring, and the stabilizing rings are connected by a stabilizing rod.

[0010] Preferably, one end of the transmission shaft penetrates the frequency conversion mechanism shell, the first heat dissipation fan, the heat dissipation ring, the rectifier, the filter and the inverter, and the other end is connected with the motor rotor.

[0011] Preferably, the frequency conversion mechanism shell in the frequency conversion mechanism is connected with a dust cover, a first heat dissipation fan and a heat dissipation ring.

[0012] Compared with the prior art, the beneficial effects of the utility model are that the frequency conversion mechanism shell, the first heat dissipation fan, the heat dissipation ring in the frequency conversion mechanism and the second heat dissipation fan in the rear heat dissipation circular pipe effectively improve the heat dissipation capacity of the motor, especially the design of the heat dissipation ring, the combination of the heat conduction strip, the ventilation hole groove and the heat dissipation strip further enhances the heat dissipation, ensures the stability of the motor during high-load operation, and effectively controls the temperature of the motor through the circulation of the cooling liquid circulating pump water circulation pipe, achieving the effect of energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of a variable frequency motor of an energy-saving fan.

[0014] Figure 2 It is a side view structural schematic diagram of a variable frequency motor of an energy-saving fan.

[0015] Figure 3 It is an internal mechanism schematic diagram of a variable frequency motor of an energy-saving fan.

[0016] Figure 4 It is a frequency conversion mechanism schematic diagram of a variable frequency motor of an energy-saving fan.

[0017] Figure 5 It is a heat dissipation ring structure schematic diagram of a variable frequency motor of an energy-saving fan.

[0018] Figure 6 It is a cooling liquid circulation mechanism schematic diagram of a variable frequency motor of an energy-saving fan.

[0019] In the drawing: 1, motor shell; 2, protection plate; 3, frequency conversion mechanism; 31, dust cover; 31, frequency conversion mechanism shell; 32, first heat dissipation fan; 33, heat dissipation ring; 331, heat conduction strip; 332, ventilation hole groove; 333, heat dissipation strip; 34, rectifier; 35, filter; 36, inverter; 4, rear heat dissipation circular pipe; 41, second heat dissipation fan; 5, fixed ring; 6, connecting rod; 7, motor; 8, transmission shaft; 9, limiting rod; 10, cooling liquid circulation mechanism; 101, cooling liquid circulating pump; 102, water circulation pipe; 103, stabilizing ring; 104, stabilizing rod; 11, control circuit. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Please refer to Figures 1-6 The utility model provides a technical scheme, including motor shell 1, its characterized in being: motor shell 1 one side is connected with frequency conversion mechanism 3, and motor shell 1 other side is connected with rear heat dissipation round pipe 4, and rear heat dissipation round pipe 4 inside is connected with heat dissipation fan two 41, and motor shell 1 inside is connected with fixed ring 5, and fixed ring 5 surface is connected with connecting rod 6, and connecting rod 6 is connected in the inner wall of motor shell 1, and fixed ring 5 inner ring is connected with motor 7, and motor 7 output end is connected with transmission shaft 8, and one end of motor 7 away from output end is connected with cooling liquid circulation mechanism 10, and cooling liquid circulation mechanism 10 includes the cooling liquid flow pump 101 of being connected in one end of motor 7, and the water circulation pipe 102 of being connected in the both sides of cooling liquid flow pump 101, and motor 7 surface is connected with control circuit 11, and control circuit 11 includes microprocessor, drive circuit, protection circuit and other parts, because it is the existing mature technology, so not in the specification.

[0022] Frequency conversion mechanism 3 includes the frequency conversion mechanism shell 31 of being set in motor shell 1 side, and frequency conversion mechanism shell 31 inside is connected with rectifier 34, filter 35 and inverter 36 respectively.

[0023] Motor shell 1 surface is connected with four sets of protection plate 2, and its role is that four sets of protection plate 2 can provide additional protective layer for motor shell, effectively prevent the direct impact and damage of external objects such as dust, water drop, fragment to motor, especially important in harsh environment, can ensure that the motor can stably run under various conditions.

[0024] Transmission shaft 8 surface is connected with limit rod 9, and one end of transmission shaft 8 is set as screw thread, and its role is that limit rod 9 facilitates the installation of the fan blade for the operator, and the screw thread at one end of transmission shaft 8 makes it convenient to connect with other components.

[0025] The heat dissipation ring 33 includes a heat conduction strip 331 arranged inside the frequency conversion mechanism 3, a plurality of ventilation hole grooves 332 are arranged on the surface of the heat conduction strip 331, and a plurality of heat dissipation strips 333 are arranged between the clamping plates of the heat conduction strip 331. The heat conduction strip 331 serves as the main heat conduction path and can quickly absorb and dissipate the heat generated inside the frequency conversion mechanism. The ventilation hole grooves 332 increase the surface area of the heat dissipation ring and allow air to circulate, thereby accelerating heat dissipation through natural convection or forced air cooling. The heat dissipation strips 333 are located between the clamping plates of the heat conduction strip 331, further increasing the heat dissipation area, and these heat dissipation strips can form heat radiation "fins" to more effectively transfer heat to the surrounding environment.

[0026] The water circulation pipe 102 is connected with a stabilizing ring 103, and the stabilizing ring 103 is connected with a stabilizing rod 104. The stabilizing ring 103 and the stabilizing rod 104 form a stable support structure, which can effectively prevent the water circulation pipe 102 from being displaced or deformed due to vibration or external force during operation, ensuring the stability and reliability of the water circulation pipe 102 during the cooling liquid circulation process, and reducing the risk of leakage caused by pipe vibration or deformation.

[0027] The transmission shaft 8 is connected with the motor 7 rotor at one end and penetrates the frequency conversion mechanism shell 31, the first heat dissipation fan 32, the heat dissipation ring 33, the rectifier 34, the filter 35, and the inverter 36 at the other end. The transmission shaft 8 can make the various elements in the frequency conversion mechanism 3 more closely arranged together, reducing the space occupation and improving the compactness and integration of the overall structure. Since the transmission shaft 8 penetrates multiple elements that may generate heat, this design helps to reduce thermal stress caused by temperature gradient, which helps to reduce the size of the motor and makes it more suitable for installation in limited space.

[0028] The dust cover 301, the first heat dissipation fan 32, and the heat dissipation ring 33 are arranged inside the frequency conversion mechanism shell 31. The dust cover 301 can effectively prevent external fluffy debris and dust from entering the frequency conversion mechanism, preventing damage to the precision electronic components inside the mechanism. The first heat dissipation fan 32 can accelerate the air flow inside the frequency conversion mechanism, improve the heat dissipation efficiency, and ensure that the frequency conversion mechanism can still work normally in high temperature environment. The heat dissipation ring 33 as part of the heat dissipation system can further increase the heat dissipation area and improve the heat dissipation efficiency.

[0029] Working principle: when the external signal input to the control circuit 11, the control circuit according to the signal requirements start motor 7, motor start, through the transmission shaft 8 to the fan blade rotation power transmission in the description is not explicitly mentioned, but generally the motor output will be connected to the fan blade to achieve the function of the fan, at the same time, the frequency conversion mechanism 3 according to the instruction of control circuit adjustment through the rectifier 34 into the alternating current power supply into direct current, filter 35 will this direct current smoothing, inverter 36 will this direct current into adjustable frequency alternating current, and the control circuit controls the frequency and voltage of inverter 36 output power, by changing the output frequency of frequency converter, can control the speed of the motor, realize the accurate control of the fan speed, in the process of motor operation, the cooling fan 32 and cooling ring 33 act on the cooling of the frequency conversion mechanism, to ensure its stability in high load operation. Cooling liquid circulation mechanism 10 also works synchronously, through the cooling liquid circulation further reduces the temperature of the motor, when the external signal requirements stop motor, the control circuit disconnects the power supply of the motor, the motor stops running.

[0030] It should be noted that in this paper, such as the first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent in such process, method, article or equipment.

[0031] Although the embodiments of the present application have been shown and described, it is understood that those skilled in the art can make various changes, modifications, replacements and variations to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A variable frequency motor for an energy-saving fan, comprising a motor housing (1), characterized in that: A frequency converter (3) is connected to one side of the motor housing (1), and a rear heat dissipation tube (4) is connected to the other side of the motor housing (1). A second heat dissipation fan (41) is connected inside the rear heat dissipation tube (4). A fixed ring (5) is connected inside the motor housing (1). A connecting rod (6) is connected to the surface of the fixed ring (5), and the connecting rod (6) is connected to the inner wall of the motor housing (1). A motor (7) is connected to the inner ring of the fixed ring (5). A drive shaft (8) is connected to the output end of the motor (7). The motor (7) is located away from the output shaft. A coolant circulation mechanism (10) is connected to one end of the outlet. The coolant circulation mechanism (10) includes a coolant flow pump (101) connected to one end of the motor (7). Water circulation pipes (102) are connected to both sides of the coolant flow pump (101). A control circuit (11) is connected to the surface of the motor (7). The frequency conversion mechanism (3) includes a frequency conversion mechanism housing (31) located on one side of the motor housing (1). A heat dissipation ring (33), a rectifier (34), a filter (35), and an inverter (36) are respectively connected inside the frequency conversion mechanism housing (31).

2. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: Four sets of protective plates (2) are connected to the surface of the motor housing (1).

3. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: The drive shaft (8) is connected to a limit rod (9) on its surface, and one end of the drive shaft (8) is threaded.

4. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: The heat dissipation ring (33) includes a heat-conducting strip (331) connected inside the frequency conversion mechanism (3). The surface of the heat-conducting strip (331) is provided with a plurality of ventilation holes (332). A plurality of heat dissipation strips (333) are connected between the clamps extending from the heat-conducting strip (331).

5. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: A stabilizing ring (103) is connected to the surface of the water circulation pipe (102), and a stabilizing rod (104) is connected between the stabilizing rings (103).

6. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: One end of the drive shaft (8) passes through the inverter housing (31), cooling fan (32), cooling ring (33), rectifier (34), filter (35) and inverter (36), and the other end is connected to the rotor of the motor (7).

7. The variable frequency motor for an energy-saving fan according to claim 1, characterized in that: The variable frequency mechanism housing (31) is equipped with a dust cover (301), a cooling fan (32) and a cooling ring (33) respectively.

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