Ventilation and heat dissipation mechanism for automatic quasi-synchronization device

Abstract

The utility model belongs to the technical field of grid-connected equipment, and particularly relates to a ventilation and heat dissipation mechanism for an automatic quasi-synchronization device, which comprises a box body, a double-shaft motor, a fan wheel, a dustproof cover, a clamping piece, a lifting mechanism, a supporting table, a rotating block, a cross rod, a brush head and a temperature sensor, the inner circumference of the dustproof cover is brushed and swept through the brush head, so that the air inlet is dredged, active dust prevention is achieved, smoothness of a heat dissipation channel is guaranteed, regular manual cleaning is not needed, and the operation and maintenance workload is reduced; through clamping and separation of a clamping piece and a rotating block and sensing of a temperature sensor on the internal temperature, intermittent work of the brush head is achieved, the dredging effect is guaranteed, energy consumption is reduced, and abrasion of the brush head is reduced; and finally, a dustproof cover is arranged on the bottom surface of the box body, and all parts are intensively arranged in the dustproof cover, so that the occupation of the internal space of the box body can be reduced, the layout space of core parts is large, and the structural compactness and expansibility are improved.

Description

Technical Field

[0001] This utility model belongs to the field of grid-connected equipment technology, specifically relating to a ventilation and heat dissipation mechanism for an automatic synchronizing device. Background Technology

[0002] Condensing screw expander generator sets are an important component of distributed energy systems. They can generate electricity by recovering low-grade heat sources such as industrial waste heat or geothermal energy, offering advantages such as high energy efficiency and strong adaptability. However, due to their low speed and fluctuating heat source characteristics, they suffer from large fluctuations in output voltage frequency, and grid connection requires synchronization of voltage, frequency, and phase. Traditional grid connection methods, due to response lag, are prone to inrush currents, leading to rotor overheating, insulation damage, and even protection tripping.

[0003] Automatic quasi-synchronization devices achieve instantaneous closing with zero phase difference after the frequency difference / voltage difference converges, based on constant lead time control, through real-time monitoring and dynamic closed-loop adjustment. This limits the inrush current to within the rated value, making it a core technology for ensuring the safe grid connection of screw expander units and improving the efficiency of distributed generation.

[0004] However, the ventilation and heat dissipation mechanisms of existing automatic synchronizing devices lack active dust prevention design. The air inlets are easily blocked by dust and other impurities, which obstructs the internal heat dissipation channels, leading to overheating of components, performance degradation, or even malfunction and shutdown. They require regular manual cleaning, which increases the workload of operation and maintenance. In addition, the related components are scattered, occupying too much internal space of the device, resulting in small layout space for core components and limiting scalability. Utility Model Content

[0005] The purpose of this invention is to provide a ventilation and heat dissipation mechanism for an automatic synchronizing device, which solves the technical problems of existing technologies lacking active dust prevention design and having a dispersed structure that occupies too much internal space.

[0006] This utility model discloses a ventilation and heat dissipation mechanism for an automatic synchronizing device, comprising:

[0007] The enclosure has multiple ventilation holes on the side and multiple air inlets on the bottom.

[0008] A dual-axis motor is vertically installed through the bottom surface of the housing, with the upper shaft located inside the housing and the lower shaft extending to the outside of the housing;

[0009] The fan wheel is mounted on the upper shaft of the dual-axis motor and is located directly above the air inlet;

[0010] The dust cover has a disc-shaped structure, is installed on the bottom surface of the box, covers all the air inlets, and has multiple air inlets on its outer periphery;

[0011] A snap-fit ​​connector is installed on the lower shaft of the dual-axis motor;

[0012] The lifting mechanism is located inside the dust cover;

[0013] The support platform is located inside the dust cover and is connected to the lifting mechanism via a transmission connection.

[0014] The rotating block is rotatably mounted on the support platform and has a snap-fit ​​part adapted to the snap-fit ​​component, and the rotating shaft is coaxially arranged with the dual-axis motor and the dust cover;

[0015] Multiple crossbars are configured and evenly distributed around the outer periphery of the rotating block;

[0016] Multiple brush heads are configured and are respectively located at the end of the crossbar away from the rotating block, and are in contact with the inner circumference of the dust cover;

[0017] A temperature sensor is installed inside the enclosure.

[0018] This application achieves active dust prevention, ensuring unobstructed internal heat dissipation channels, and eliminates the need for regular manual cleaning, reducing maintenance workload. It also has the advantages of energy saving, environmental protection, and extended service life, while significantly reducing the space occupied inside the enclosure, allowing for more space for the layout of core components, thereby improving structural compactness and expandability.

[0019] Based on the above technical solution, the solution of this application can be further improved as follows:

[0020] Preferably, it includes:

[0021] An air guide ring is located on the bottom surface of the housing and is fitted around the fan wheel. This design forms a flow channel, which accelerates the intake of air through the air inlet, thereby improving the heat dissipation effect.

[0022] Preferably, it includes:

[0023] The upper cover is installed on the bottom surface of the housing and covers the upper end of the dual-axis motor;

[0024] The lower end cover is installed on the bottom surface of the outer casing and covers the lower end of the dual-axis motor. This solution improves the operational stability and ease of disassembly and assembly of the dual-axis motor, reduces the complexity of production and assembly, and increases production efficiency.

[0025] Preferably, the multiple air inlets are evenly arranged around the dual-axis motor; this design improves airflow stability, enhances suction at the air inlets, and reduces operating noise.

[0026] Preferably, a receiving groove is formed at the center of the inner bottom surface of the dust cover, the lifting mechanism is installed at the bottom of the receiving groove, and the support platform is vertically slidingly engaged with the receiving groove. By adopting this solution, the thickness of the dust cover can be reduced, the structural compactness can be improved, the installation stability of the lifting mechanism and the support platform can be enhanced, and the sliding guide function can be played to ensure the vertical movement stability of the support platform.

[0027] Preferably, the lifting mechanism is a push-pull electromagnet, and the driving end is connected to the bottom surface of the support platform; this solution has the advantages of compact structure and stable driving.

[0028] Preferably, the top of the rotating block has a first mating surface, and the snap-fit ​​part is disposed on the first mating surface; the bottom of the snap-fit ​​part has a second mating surface, and a snap-fit ​​groove complementary to the shape of the snap-fit ​​part is formed on the second mating surface; by adopting this solution, the stability of the snap-fit ​​part and the rotating block are improved, and the stability of the torque transmission of the lower shaft is ensured.

[0029] Preferably, the top surface of the support platform has a protruding post at its center, and the rotating block is rotatably sleeved on the protruding post. This solution improves the stability of the connection between the support platform and the rotating block and ensures smooth rotation, thereby enhancing the operational stability of the device and achieving good performance.

[0030] Through the above technical solution, this utility model achieves the following beneficial effects:

[0031] 1. This application uses a brush head to brush the inner circumference of the dust cover, thereby clearing the air intake holes and achieving active dust prevention, ensuring the smooth flow of internal heat dissipation channels, and eliminating the need for regular manual cleaning, thus reducing maintenance workload.

[0032] 2. This application enables the brush head to work intermittently by using the snap-fit ​​and rotating block to snap and separate, as well as the temperature sensor to sense the internal temperature of the box. This ensures the unblocking effect, reduces energy consumption, and reduces brush head wear, thus achieving energy saving, environmental protection, and extending service life.

[0033] 3. By setting a dust cover on the bottom of the enclosure and arranging the snap-fit ​​parts, lifting mechanism, support platform, rotating block, crossbar and brush head inside the dust cover, this application can significantly reduce the space occupied inside the enclosure, allowing for a larger layout space for core components, thereby improving the structural compactness and expandability. Attached Figure Description

[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a side cross-sectional view of the ventilation and heat dissipation mechanism for the automatic synchronizing device described in a specific embodiment of this utility model;

[0036] Figure 2 for Figure 1 A partial enlarged view of the ventilation and heat dissipation mechanism for the automatic synchronizing device shown.

[0037] Figure 3 for Figure 1 Side view of the ventilation and heat dissipation mechanism for the automatic synchronizing device shown.

[0038] Figure 4 for Figure 1 Top sectional view of the ventilation and heat dissipation mechanism for the automatic synchronizing device shown.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Housing; 2. Dual-axis motor; 3. Fan wheel; 4. Dust cover; 5. Snap-fit ​​connector; 6. Lifting mechanism; 7. Support platform; 8. Rotating block; 9. Crossbar; 10. Brush head; 11. Temperature sensor; 12. Air guide ring; 13. Top cover; 14. Bottom cover;

[0041] 101. Heat dissipation hole; 102. Air inlet; 401. Air intake hole; 402. Receiving groove; 501. Second mating surface; 502. Snap-fit ​​groove; 701. Protrusion; 801. Snap-fit ​​part; 802. First mating surface. Detailed Implementation

[0042] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0043] First, it should be noted that some directional terms used in the following description to clearly illustrate the technical solution of this utility model, such as the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," are all derived from the normal orientation of the components in the ventilation and heat dissipation mechanism of the automatic synchronizing device. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] To better understand the above technical solutions, the following will provide a detailed description of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0047] Example:

[0048] like Figures 1-4 As shown in the figure, this application discloses a ventilation and heat dissipation mechanism for an automatic synchronizing device. It adds an active dustproof design, ensuring the smooth flow of internal heat dissipation channels, eliminating the need for regular manual cleaning, reducing maintenance workload, and the related components have a compact structure that does not occupy too much internal space, allowing for a large layout space for core components and improving expandability. Its specific structure includes: a housing 1, a dual-axis motor 2, a fan wheel 3, a dust cover 4, a snap-fit ​​component 5, a lifting mechanism 6, a support platform 7, a rotating block 8, a crossbar 9, a brush head 10, and a temperature sensor 11.

[0049] The side of the enclosure 1 has multiple heat dissipation holes 101 and the bottom has multiple air inlets 102, which reduces the direct intake rate of dust and forms a heat dissipation channel inside, which can ventilate and dissipate heat for the core components.

[0050] The dual-axis motor 2 is vertically installed through the bottom surface of the housing 1, with the upper shaft located inside the housing 1 and the lower shaft extending to the outside of the housing 1, serving as a power source for heat dissipation and dust prevention.

[0051] The fan wheel 3 is mounted on the upper shaft of the dual-axis motor 2 and is located directly above the air inlet 102. It is used to force the airflow to enter from the air inlet 401 and vertically enter the housing 1 through the air inlet 102, thereby improving the heat dissipation efficiency.

[0052] The dust cover 4 has a disc-shaped structure, is installed on the bottom of the box 1, and covers all the air inlets 102. It has multiple air inlets 401 on its outer periphery and its inner periphery is circular, so that it can always keep in contact with the brush head 10.

[0053] The snap-fit ​​component 5 is installed on the lower shaft of the dual-axis motor 2 and is used to transmit the torque of the lower shaft after snapping with the rotating block 8, thereby driving the brush head 10 to perform cleaning.

[0054] The lifting mechanism 6 is located inside the dust cover 4 and is used to drive the support platform 7 to move up and down.

[0055] The support platform 7 is located inside the dust cover 4 and is connected to the lifting mechanism 6 for transmission. It is used to drive the rotating block 8 to move up and down, and it does not interfere with the rotation, thereby improving the rotational stability.

[0056] The rotating block 8 is rotatably mounted on the support platform 7 and has a snap-fit ​​part 801 that is adapted to the snap-fit ​​part 5. The rotating shaft is coaxially arranged with the dual-axis motor 2 and the dust cover 4 to ensure that the brush head 10 is always in contact with the inner circumference of the dust cover 4.

[0057] Multiple crossbars 9 are configured and evenly distributed around the outer periphery of the rotating block 8 to connect the rotating block 8 and the brush head 10, so that the two can rotate synchronously.

[0058] Multiple brush heads 10 are configured and are located one by one at the end of the crossbar 9 away from the rotating block 8, and are in contact with the inner circumference of the dust cover 4, for unblocking the air inlet 401.

[0059] Temperature sensor 11 is installed inside the enclosure 1 to sense the internal temperature of the enclosure 1 and send it to the control system.

[0060] With the above-described design, this utility model has the following advantages:

[0061] By brushing the inner circumference of the dust cover 4 with the brush head 10, the air inlet 401 can be unblocked, thereby achieving active dust prevention, ensuring the smooth flow of the internal heat dissipation channel, and eliminating the need for regular manual cleaning, thus reducing the workload of operation and maintenance.

[0062] By engaging and disengaging the snap-fit ​​component 5 and the rotating block 8, and by sensing the internal temperature of the housing 1 through the temperature sensor 11, the brush head 10 can operate intermittently, which not only ensures the unblocking effect but also reduces energy consumption and wear on the brush head 10, thus playing a role in energy conservation, environmental protection, and extending service life.

[0063] By setting a dust cover 4 on the bottom surface of the housing 1 and arranging the snap-fit ​​component 5, lifting mechanism 6, support platform 7, rotating block 8, crossbar 9 and brush head 10 inside the dust cover 4, the space occupied inside the housing 1 can be greatly reduced, allowing for a larger layout space for the core components, thereby improving the structural compactness and expandability.

[0064] In some embodiments, such as Figure 1 and Figure 2 As shown, it includes: an air guide ring 12, which is located on the bottom surface of the housing 1 and sleeved on the outside of the fan wheel 3, to form a flow channel and accelerate the intake of air through the air inlet 401, thereby improving the heat dissipation effect.

[0065] In some embodiments, such as Figure 2 As shown, it includes: an upper end cover 13 and a lower end cover 14;

[0066] The upper end cover 13 is installed on the inner bottom surface of the housing 1 and covers the upper end of the dual-axis motor 2, and has a through hole for the upper shaft to pass through; the lower end cover 14 is installed on the outer bottom surface of the housing 1 and covers the lower end of the dual-axis motor 2, and has a through hole for the lower shaft to pass through.

[0067] By setting the upper end cover 13 and the lower end cover 14, the operational stability and ease of disassembly and assembly of the dual-axis motor 2 are improved, the complexity of production and assembly is reduced, and production efficiency is increased.

[0068] In some embodiments, such as Figure 4 As shown, multiple air inlets 102 are evenly arranged around the dual-axis motor 2, which can ensure that the airflow evenly covers the air intake surface of the fan wheel 3, thereby improving airflow stability, enhancing the suction force at the air intake 401, and reducing operating noise.

[0069] In some embodiments, such as Figure 2 As shown, a receiving groove 402 is formed in the center of the inner bottom surface of the dust cover 4, the lifting mechanism 6 is installed at the bottom of the receiving groove 402, and the support platform 7 forms a vertical sliding fit with the receiving groove 402.

[0070] By setting the receiving groove 402, the thickness of the dust cover 4 can be reduced, the structural compactness can be improved, the installation stability of the lifting mechanism 6 and the support platform 7 can be enhanced, and it also plays a sliding guiding role, ensuring the vertical movement stability of the support platform 7.

[0071] Based on the above embodiments, such as Figure 2 As shown, the lifting mechanism 6 is a push-pull electromagnet, and the drive end is connected to the bottom surface of the support platform 7, which has the advantages of compact structure and stable drive.

[0072] In some embodiments, such as Figure 2As shown, the top of the rotating block 8 has a first mating surface 802, and the snap-fit ​​part 801 is provided on the first mating surface 802; the bottom of the snap-fit ​​part 5 has a second mating surface 501, and the second mating surface 501 has a snap-fit ​​groove 502 that is complementary in shape to the snap-fit ​​part 801.

[0073] The above settings improve the stability of the engagement between the snap-fit ​​component 5 and the rotating block 8, ensuring the stability of the torque transmission of the lower shaft.

[0074] In some embodiments, such as Figure 2 As shown, the support platform 7 has a protruding post 701 at the center of its top surface. The rotating block 8 is rotatably sleeved on the protruding post 701, and the protruding post 701 is sleeved with a bearing, thereby reducing resistance and improving the smoothness of rotation.

[0075] By setting the protruding column 701, the stability of the connection between the support platform 7 and the rotating block 8 is improved, and the smoothness of rotation is ensured, thereby improving the operational stability of the device and achieving good results.

[0076] The working principle of the above technical solution is as follows:

[0077] Under normal conditions, the dual-axis motor 2 drives the fan wheel 3 to rotate, forcing the airflow from the outside into the dust cover 4 through the air inlet 401. This allows the air inlet 401 to intercept dust, lint, and other impurities in the airflow. The airflow then enters the housing 1 through the air inlet 102, and finally carries the heat emitted by the core components out through the heat dissipation hole 101 to the outside of the housing 1, thus achieving the function of ventilation and heat dissipation.

[0078] During dust prevention, the temperature sensor 11 senses the internal temperature of the housing 1 and sends it to the control system. When the control system determines that the internal temperature is too high, it activates the lifting mechanism 6. The lifting mechanism 6 drives the support platform 7 to rise, and the support platform 7 drives the rotating block 8 to rise together. This causes the snap-fit ​​part 801 to contact the second mating surface 501. After the snap-fit ​​groove 502 rotates to align with the snap-fit ​​part 801, the rotating block 8 is no longer limited and will rise again, thus allowing the snap-fit ​​part 801 to be inserted into the snap-fit ​​groove 502. At the same time, the first mating surface 802 and the second mating surface 501 are kept in contact. The snap-fit ​​part 5 then transmits torque to drive the rotating block 8 to rotate together. The rotating block 8 drives the brush head 10 to rotate through the crossbar 9. The brush head 10 will perform a circular sweeping of the inner circumference of the dust cover 4 to unclog the air inlet 401.

[0079] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A ventilation and heat dissipation mechanism for an automatic synchronizing device, characterized in that, include: The enclosure has multiple ventilation holes on the side and multiple air inlets on the bottom. A dual-axis motor is vertically installed through the bottom surface of the housing, with the upper shaft located inside the housing and the lower shaft extending to the outside of the housing; The fan wheel is mounted on the upper shaft of the dual-axis motor and is located directly above the air inlet; The dust cover has a disc-shaped structure, is installed on the bottom surface of the box, covers all the air inlets, and has multiple air inlets on its outer periphery; A snap-fit ​​connector is installed on the lower shaft of the dual-axis motor; The lifting mechanism is located inside the dust cover; The support platform is located inside the dust cover and is connected to the lifting mechanism via a transmission connection. The rotating block is rotatably mounted on the support platform and has a snap-fit ​​part adapted to the snap-fit ​​component, and the rotating shaft is coaxially arranged with the dual-axis motor and the dust cover; Multiple crossbars are configured and evenly distributed around the outer periphery of the rotating block; Multiple brush heads are configured and are respectively located at the end of the crossbar away from the rotating block, and are in contact with the inner circumference of the dust cover; A temperature sensor is installed inside the enclosure.

2. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, include: An air guide ring is located on the bottom surface of the housing and is fitted around the fan wheel.

3. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, include: The upper cover is installed on the bottom surface of the housing and covers the upper end of the dual-axis motor; The lower end cover is installed on the bottom surface of the outer casing and covers the lower end of the dual-axis motor.

4. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, Multiple air inlets are evenly arranged around the dual-axis motor.

5. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, The dust cover has a receiving groove at the center of its inner bottom surface, the lifting mechanism is installed at the bottom of the receiving groove, and the support platform is vertically slidingly engaged with the receiving groove.

6. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 5, characterized in that, The lifting mechanism is a push-pull electromagnet, and the driving end is connected to the bottom surface of the support platform.

7. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, The top of the rotating block has a first mating surface, and the snap-fit ​​part is provided on the first mating surface; the bottom of the snap-fit ​​part has a second mating surface, and a snap-fit ​​groove complementary to the shape of the snap-fit ​​part is provided on the second mating surface.

8. The ventilation and heat dissipation mechanism for the automatic synchronizing device according to claim 1, characterized in that, The support platform has a protruding post at the center of its top surface, and the rotating block is rotatably sleeved on the protruding post.

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