Inner rotor cooling fan for energy storage

Abstract

The utility model discloses an inner rotor cooling fan for energy storage, comprising a wind direction adjusting unit which comprises a heat dissipation main pipe, the heat dissipation main pipe is provided with an air inlet and an air outlet, the heat dissipation main pipe is internally provided with a frame, the frame is internally provided with an inner rotor main fan, the frame is fixedly provided with a first rotating shaft, and the first rotating shaft is fixedly provided with a second rotating shaft; one end of the first rotating shaft penetrates through the outer wall of the heat dissipation main pipe and extends out of the heat dissipation main pipe, a steering motor is fixedly installed on the heat dissipation main pipe, the output end of the steering motor is fixedly connected with the end, located outside the heat dissipation main pipe, of the first rotating shaft, and the steering motor drives the first rotating shaft to rotate; the direction of the inner rotor main fan is further adjusted, and wind direction adjustment is achieved. The inner rotor main fan is driven to rotate through the steering motor, the wind direction can be flexibly adjusted according to the heating conditions of different parts of the energy storage equipment, accurate heat dissipation is achieved, insufficient heat dissipation or excessive heat dissipation in partial areas is avoided, and the energy utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage equipment heat dissipation technical field especially relates to a cooling fan for internal rotor of energy storage. BACKGROUND

[0002] In the field of energy storage today, with the continuous progress of technology, the power and energy density of energy storage systems are increasingly improved. For example, in large battery energy storage power stations, battery packs of new energy vehicles, and uninterruptible power supplies (UPS) and other application scenarios, the performance and stability of energy storage equipment are crucial. However, energy storage equipment will inevitably generate heat during operation, and if this heat cannot be effectively dissipated in time, it will have a serious negative impact on the performance and life of the energy storage equipment.

[0003] The wind direction adjustment capability of traditional fans is limited. In energy storage equipment, the heating situation may be different in different parts, and it is necessary to flexibly adjust the wind direction according to the actual situation to achieve more accurate heat dissipation. However, the existing fans can only provide airflow in a single direction, making it difficult to meet the diversified heat dissipation needs of energy storage equipment. This results in insufficient heat dissipation in some areas, while excessive heat dissipation may occur in some areas, causing waste of energy. SUMMARY

[0004] The purpose of this section is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name. Such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide an internal rotor cooling fan for energy storage, which is suitable for solving the problem that the existing fan can only provide airflow in a single direction, making it difficult to meet the diversified heat dissipation needs of energy storage equipment.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: an internal rotor cooling fan for energy storage, comprising:

[0008] The wind direction adjusting unit comprises a heat dissipation main pipe, an air inlet and an air outlet are arranged on the heat dissipation main pipe, a frame is arranged in the heat dissipation main pipe, an inner rotor main fan is arranged in the frame, a first rotating shaft is fixedly arranged on the frame, one end of the first rotating shaft penetrates through the outer wall of the heat dissipation main pipe and extends to the outside of the heat dissipation main pipe, a steering motor is fixedly arranged on the heat dissipation main pipe, and the output end of the steering motor is fixedly connected with the end of the first rotating shaft located outside the heat dissipation main pipe.

[0009] The partition cooling unit comprises a plurality of heat dissipation branch pipes, and the air outlet of the heat dissipation main pipe is provided with a connecting cavity, and one end of each heat dissipation branch pipe is communicated with the connecting cavity, so that the air flow in the heat dissipation main pipe is distributed to different areas for cooling.

[0010] The control unit comprises a temperature sensor arranged on the heat dissipation branch pipe and an MCU controller, and the MCU controller is electrically connected with the steering motor and the temperature sensor.

[0011] As a preferred scheme of the inner rotor cooling fan for energy storage, the partition cooling unit further comprises a fan-shaped piece arranged in the connecting cavity, and the fan-shaped piece is located at the air inlet of the heat dissipation branch pipe.

[0012] As a preferred scheme of the inner rotor cooling fan for energy storage, the plurality of fan-shaped pieces are arranged staggered, the plurality of fan-shaped pieces are spliced to form an air duct flow limiting port, the air flow into the heat dissipation branch pipe is adjusted by adjusting the position of the fan-shaped piece and changing the size of the air duct flow limiting port.

[0013] As a preferred scheme of the inner rotor cooling fan for energy storage, the heat dissipation branch pipe is arranged horizontally, the connecting cavity is in a fan-like shape, and the plurality of heat dissipation branch pipes are arranged on the arc surface of the connecting cavity.

[0014] As a preferred scheme of the inner rotor cooling fan for energy storage, the heat dissipation branch pipe is a Venturi effect accelerating pipe, a small fan is arranged at the position with the minimum inner diameter of the heat dissipation branch pipe, a support is arranged in the heat dissipation branch pipe, a second rotating shaft is fixedly connected to the support, a sleeve is rotatably arranged on the second rotating shaft, the small fan is arranged on the sleeve, and the axis of the small fan and the axis of the sleeve are coincident.

[0015] As a preferred scheme of the internal rotor cooling fan for energy storage, the sleeve is fixedly connected with a sliding rod, a centrifugal counterweight is slidably sleeved on the sliding rod, a miniature tension spring is fixedly connected between the centrifugal counterweight and the sleeve, the miniature tension spring is sleeved on the sliding rod, the centrifugal counterweight is located between the small fan and the fan-shaped piece, the centrifugal counterweight and the fan-shaped piece are the same in number, and are one-to-one connected with connecting ropes.

[0016] The internal rotor cooling fan for energy storage has the advantages that the internal rotor main fan is driven to rotate by the steering motor, the air direction can be flexibly adjusted according to the heating conditions of different parts of the energy storage equipment, precise heat dissipation is realized, the problem of insufficient heat dissipation or excessive heat dissipation in some areas is avoided, and the energy utilization efficiency is improved.

[0017] The plurality of heat dissipation branch pipes are connected with the heat dissipation main pipe through the connecting cavities, air flow can be uniformly distributed to different areas of the energy storage equipment, the problem of poor partition cooling effect of the traditional fan is effectively solved, and the performance and stability of the entire energy storage system are ensured.

[0018] The temperature sensor and the MCU controller of the control unit cooperate to realize real-time monitoring of the temperature of each heat dissipation area, and dynamically adjust the air direction and the air flow entering each heat dissipation branch pipe according to the actual situation, and millisecond-level dynamic air flow distribution is realized. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor. Among them:

[0020] Figure 1 The utility model provides a kind of overall structure schematic diagram of internal rotor cooling fan for energy storage;

[0021] Figure 2 The utility model provides a kind of connecting cavity structure sectional view of internal rotor cooling fan for energy storage;

[0022] Figure 3 The utility model provides a kind of partition cooling unit structure schematic diagram of internal rotor cooling fan for energy storage;

[0023] Figure 4 The utility model provides a kind of centrifugal counterweight and fan-shaped piece cooperation structure schematic diagram of internal rotor cooling fan for energy storage.

[0024] BRIEF DESCRIPTION OF DRAWINGS: 100, wind direction adjusting unit; 101, heat dissipation main pipe; 102, air inlet; 103, air outlet; 104, frame; 105, inner rotor main fan; 106, first rotating shaft; 107, steering motor;

[0025] 200, partition cooling unit; 201, heat dissipation branch pipe; 202, connecting cavity; 203, small fan; 204, bracket; 205, second rotating shaft; 206, sleeve; 207, sliding rod; 208, centrifugal weight block; 209, micro tension spring; 210, connecting rope; 211, fan-shaped piece; 212, air duct flow limiting port;

[0026] 300, control unit; 301, temperature sensor; 302, MCU controller. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more apparent, a detailed description of the specific embodiments of the present application will be given below with reference to the accompanying drawings.

[0028] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0030] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0031] EMBODIMENT

[0032] REFERENCE Figures 1-4 For one embodiment of the present application, an inner rotor cooling fan for energy storage is provided, comprising:

[0033] The wind direction adjusting unit 100 comprises a heat dissipation main pipe 101 provided with an air inlet 102 and an air outlet 103, the inside of the heat dissipation main pipe 101 is provided with a frame 104, the inside of the frame 104 is mounted with an inner rotor main fan 105, a first rotating shaft 106 is fixedly installed on the frame 104, one end of the first rotating shaft 106 penetrates through the outer wall of the heat dissipation main pipe 101 and extends to the outside of the heat dissipation main pipe 101, a steering motor 107 is fixedly installed on the heat dissipation main pipe 101, the output end of the steering motor 107 is fixedly connected with the one end of the first rotating shaft 106 located outside the heat dissipation main pipe 101, the first rotating shaft 106 is driven to rotate by the steering motor 107, so as to adjust the direction of the inner rotor main fan 105, and the wind direction adjustment is realized.

[0034] The partition cooling unit 200 comprises a plurality of heat dissipation branch pipes 201, the air outlet 103 of the heat dissipation main pipe 101 is provided with a connecting cavity 202, one end of each heat dissipation branch pipe 201 is communicated with the connecting cavity 202, and the connecting cavity 202 is used for distributing the airflow in the heat dissipation main pipe 101 to different areas for cooling.

[0035] The partition cooling unit 200 further comprises a plurality of sector-shaped pieces 211 arranged in the connecting cavity 202, and the sector-shaped pieces 211 are located at the air inlet ports of the heat dissipation branch pipes 201.

[0036] The plurality of sector-shaped pieces 211 are arranged staggered, a plurality of sector-shaped pieces 211 are spliced to form an air duct flow limiting port 212, the airflow into the heat dissipation branch pipe 201 is adjusted by adjusting the position of the sector-shaped piece 211 and changing the size of the air duct flow limiting port 212. It should be noted that the sector-shaped piece 211 has an internal recessed area, and the internal recessed area affects the air duct flow limiting port 212, so that the inner diameter of the air duct flow limiting port 212 is not less than 10 mm even without external force.

[0037] The heat dissipation branch pipe 201 is arranged in the horizontal direction, and the connecting cavity 202 is in the shape of a sector, and a plurality of heat dissipation branch pipes 201 are distributed on the arc surface of the connecting cavity 202.

[0038] The heat dissipation branch pipe 201 is a Venturi effect accelerating pipe, the heat dissipation branch pipe 201 is provided with a small fan 203 at the minimum inner diameter, the inside of the heat dissipation branch pipe 201 is provided with a bracket 204, a second rotating shaft 205 is fixedly connected to the bracket 204, a sleeve 206 is rotatably sleeved on the second rotating shaft 205, the small fan 203 is installed on the sleeve 206, and the axis of the small fan 203 and the sleeve 206 is coincident.

[0039] The sleeve 206 is fixedly connected with a sliding rod 207, a centrifugal weight 208 is slidably sleeved on the sliding rod 207, a micro tension spring 209 is fixedly connected between the centrifugal weight 208 and the sleeve 206, the micro tension spring 209 is sleeved on the sliding rod 207, the centrifugal weight 208 is located between the small fan 203 and the fan-shaped piece 211, the number of the centrifugal weight 208 is the same as that of the fan-shaped piece 211, and the centrifugal weight 208 is connected with the fan-shaped piece 211 in one-to-one correspondence through a connecting rope 210.

[0040] A control unit 300, comprising a temperature sensor 301 arranged on the heat dissipation branch pipe 201 and an MCU controller 302, the MCU controller 302 is electrically connected with the steering motor 107 and the temperature sensor 301.

[0041] In the process of use, when in the initial running stage, in the balanced air supply mode, the ventilation volume in each heat dissipation branch pipe 201 is the same, and the outflow direction of the inner rotor main fan 105 is not deviated to any heat dissipation branch pipe 201.

[0042] The temperature sensor 301 at the outlet of each heat dissipation branch pipe 201 monitors the temperature in real time, and sends a signal to the MCU controller 302 when the temperature of a certain area exceeds a threshold value, the MCU controller 302 drives the steering motor 107 to rotate the first rotating shaft 106, so that the outflow direction of the inner rotor main fan 105 is deviated to the inlet of the heat dissipation branch pipe 201 corresponding to the high temperature area, at this time, the air volume in the corresponding heat dissipation branch pipe 201 increases, the Venturi effect makes the throat wind speed of the heat dissipation branch pipe 201 increase to about 3.2 times of the inlet, the small fan 203 is driven to rotate at a high speed, and the rotation speed and the wind speed are in a linear relationship (formula: n=60v / (πD), n is the rotation speed of the small fan 203, v is the throat wind speed, and D is the diameter of the small fan 203), the sleeve 206 is rotated by the small fan 203, the rotation speed of the small fan 203 is increased, so that the centrifugal weight 208 on the sliding rod 207 overcomes the tension of the micro tension spring 209 and moves outward along the sliding rod 207 (when the rotation speed of the small fan 203 is increased, the centrifugal force of the centrifugal weight 208 is increased, the initial tension of the micro tension spring 209 is overcome, and a certain distance is moved outward along the sliding rod 207, the distance is related to the rotation speed of the small fan 203, and the higher the rotation speed, the greater the moving distance), the corresponding fan-shaped piece 211 is further opened by the connecting rope 210, the air duct flow limiting opening 212 is expanded, so that the air volume in the corresponding heat dissipation branch pipe 201 is increased at this time, the heat dissipation of the high temperature area is accelerated, while in other heat dissipation branch pipes 201, the rotation speed of the small fan 203 is reduced due to the decrease of the air volume, and then the air duct flow limiting opening 212 is reduced, so that the air volume is reduced when local cooling is performed.

[0043] When the temperature falls to the set range, the MCU controls the steering motor 107 to reset, the throat wind speed of the heat dissipation branch pipe 201 is reduced, the rotation speed of the small fan 203 is reduced, the miniature tension spring 209 pulls the centrifugal weight block 208 to reset, the opening of the fan-shaped sheet 211 is restored to the initial state, and the system restores the balanced air supply mode.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An inner rotor cooling fan for energy storage, characterized by, The application relates to a wind direction adjusting unit (100) which comprises a heat dissipation main pipe (101) provided with an air inlet (102) and an air outlet (103), the inside of the heat dissipation main pipe (101) is provided with a frame (104), an inner rotor main fan (105) is arranged in the frame (104), a first rotating shaft (106) is fixedly arranged on the frame (104), one end of the first rotating shaft (106) penetrates through the outer wall of the heat dissipation main pipe (101) and extends to the outside of the heat dissipation main pipe (101), a steering motor (107) is fixedly arranged on the heat dissipation main pipe (101), the output end of the steering motor (107) is fixedly connected with one end of the first rotating shaft (106) located outside the heat dissipation main pipe (101), the steering motor (107) drives the first rotating shaft (106) to rotate, the direction of the inner rotor main fan (105) is adjusted, and the wind direction is adjusted. The application further relates to a partition cooling unit (200) which comprises a plurality of heat dissipation branch pipes (201), the air outlet (103) of the heat dissipation main pipe (101) is provided with a connecting cavity (202), one end of each heat dissipation branch pipe (201) is communicated with the connecting cavity (202), and the airflow in the heat dissipation main pipe (101) is distributed to different areas for cooling. The application further relates to a control unit (300) which comprises a temperature sensor (301) arranged on the heat dissipation branch pipe (201) and an MCU controller (302), the MCU controller (302) is electrically connected with the steering motor (107) and the temperature sensor (301). The partition cooling unit (200) further comprises a fan-shaped piece (211) arranged in the connecting cavity (202), and the fan-shaped piece (211) is located at the air inlet of the heat dissipation branch pipe (201).

2. The inner rotor cooling fan for energy storage according to claim 1, characterized in that: The fan-shaped pieces (211) are arranged in a staggered mode, the fan-shaped pieces (211) are spliced to form an air duct flow limiting port (212), the airflow into the heat dissipation branch pipe (201) is adjusted by adjusting the position of the fan-shaped piece (211) and changing the size of the air duct flow limiting port (212).

3. An inner rotor cooling fan for energy storage applications according to claim 2, characterized in that: The heat dissipation branch pipe (201) is arranged in a horizontal direction, the connecting cavity (202) is in a fan-shaped mode, and the plurality of heat dissipation branch pipes (201) are arranged on the arc surface of the connecting cavity (202).

4. An inner rotor cooling fan for energy storage applications according to claim 3, characterized in that: The heat dissipation branch pipe (201) is a Venturi effect accelerating pipe, a small fan (203) is arranged at the minimum inner diameter of the heat dissipation branch pipe (201), a support (204) is arranged in the heat dissipation branch pipe (201), a second rotating shaft (205) is fixedly connected to the support (204), a sleeve (206) is rotatably arranged on the second rotating shaft (205), the small fan (203) is arranged on the sleeve (206), and the axis of the small fan (203) is coincident with the axis of the sleeve (206).

5. An inner rotor cooling fan for energy storage applications according to claim 4, characterized in that: ​ 6. An inner rotor cooling fan for energy storage applications according to claim 5, characterized in that: The sleeve (206) is fixedly connected with a sliding rod (207), the centrifugal counterweight (208) is slidably sleeved on the sliding rod (207), the micro tension spring (209) is fixedly connected between the centrifugal counterweight (208) and the sleeve (206), the micro tension spring (209) is sleeved on the sliding rod (207), the centrifugal counterweight (208) is located between the small fan (203) and the fan-shaped piece (211), the centrifugal counterweight (208) is same in number with the fan-shaped piece (211), and the connecting ropes (210) are connected in one-to-one correspondence.

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