Distributed power supply grid-connected control device
By designing a combined structure of the extrapolation mechanism and the partition main body in the distributed power grid-connected control device, the mercury expansion and elastic elements are used to improve the heat dissipation effect and dust protection, solving the problem that the device is susceptible to dust in the non-use state and extending its service life.
Patent Information
- Application Number
- CN202421699671.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The existing distributed power grid-connected control devices are susceptible to dust and impurities in the air when they are not in use, resulting in wear of internal components and shortening their service life.
A distributed power grid-connected control device is designed, adopting a combined structure of an extra-propelled mechanism and a partition main body. The piston and external push rod are moved by heat expansion by mercury, and the partition main body is pushed to one side to expose the heat dissipation port. When the temperature drops, the partition main body is driven to cover the heat dissipation port through the elastic element to prevent dust from entering.
It effectively improves the heat dissipation effect, extends the service life of the device, prevents dust from entering the device, and reduces wear of components.
Smart Images
Figure CN223053234U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grid-connected control equipment, in particular to a distributed power grid-connected control device. Background Art
[0002] With the rapid development of renewable energy such as solar energy and wind energy, as a power generation mode that converts renewable energy into electric energy, distributed power sources have gradually received attention. Distributed power sources, with their flexibility, reliability, and sustainability, have become an important part of the development of the power system. Distributed power sources have a short power transmission distance, which can reduce the losses in the power transmission line and the power transmission process. Distributed power sources can be scaled up according to demand and flexibly respond to load changes in the power system. The type and form of energy can be selected and optimized according to the local resource situation to improve energy utilization efficiency. The distributed power grid-connected control device is a key link to realize the interconnection between the distributed power source and the power system. Through technologies such as inverter technology, synchronous voltage technology, and grid synchronization technology, the stable connection between the distributed power source and the power system is realized, ensuring power quality and improving power supply capacity and system stability.
[0003] Since power electronic devices generate heat during operation and will reach a relatively high temperature. If overheated, it may cause equipment failures and affect the normal operation of the device. The existing heat dissipation method generally dissipates heat through heat dissipation ports. However, in the non-use state, dust and impurities in the air easily enter the interior of the device, thus easily causing wear to the internal components and shortening the service life.
[0004] In view of the above problems, the utility model proposes a distributed power grid-connected control device. Content of the Utility Model
[0005] The purpose of the utility model is to provide a distributed power grid-connected control device, thus solving the problems in the background art.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A distributed power grid-connected control device, including a controller main body, and an interface main body arranged on the upper end of the controller main body. An external pushing mechanism is installed on the outer wall of the controller main body. One end of the external pushing mechanism is fixedly connected to a partition main body, and a heat dissipation port is opened at the position where the partition main body covers the controller main body;
[0007] The extrapolation mechanism includes an installation box fixedly connected to the outer wall of the controller body. Inside the installation box, there is a heat absorption block fixedly connected. On one side of the heat absorption block, there is a storage cavity opened inside the installation box. The storage cavity is used to store mercury. One end of the storage cavity communicates with a movable channel. A piston body is slidably arranged on the inner wall of the movable channel. The end of the piston body away from the storage cavity is fixedly connected to an outer push rod, and the other end of the outer push rod is fixedly connected to the partition body.
[0008] Preferably, one side of the heat absorption block penetrates through the outer wall of the installation box, and the penetrated end is inside the inner cavity of the controller body.
[0009] Preferably, there are two groups of storage cavities, and the two groups of storage cavities are symmetrically distributed about the center of the heat absorption block.
[0010] Preferably, a storage board is installed at the end of the partition body away from the outer push rod, and a storage groove is opened inside the storage board.
[0011] Preferably, one end of the receiving block is fixedly connected to an elastic element, and the inner bottom plate of the storage groove is fixedly connected to the receiving block.
[0012] Preferably, the end of the elastic element away from the receiving block is fixedly connected to the partition body.
[0013] Preferably, when the partition body disengages from covering the heat dissipation port, the partition body retracts into the inner cavity of the storage groove, and the elastic element is in a compressed state.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] A distributed power grid connection control device proposed by the present utility model. When the mercury is heated and expands, it will drive the piston body to move on the inner wall of the movable channel, thereby driving the outer push rod to push the partition body to move to one side, so that the heat dissipation port is exposed. As the temperature gets higher and higher, the area of the heat dissipation port will increase, and the heat dissipation effect will be improved. When the partition body moves to one side, it will retract into the storage groove, thereby compressing the elastic element. Therefore, when in the non-working state, after the temperature drops and the mercury contracts, at this time, the elastic element's acting force will drive the partition body to cover the heat dissipation port again, preventing dust from entering and improving the service life, solving the problem that in the non-use state, dust and impurities in the air easily enter the device interior, thus easily causing wear to the internal components and shortening the service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is the overall three-dimensional structure schematic diagram of the present utility model;
[0017] Figure 2 is the schematic diagram of the open state of the partition body of the present utility model;
[0018] Figure 3 Structural schematic diagram of the extrapolation mechanism of the present utility model;
[0019] Figure 4 Internal structural schematic diagram of the storage board of the present utility model.
[0020] In the figure: 1, controller main body; 2, interface main body; 3, extrapolation mechanism; 31, installation box; 32, heat absorption block; 33, storage cavity; 34, activity channel; 35, piston main body; 36, extrapolation rod; 4, partition main body; 5, heat dissipation port; 6, storage board; 7, storage groove; 8, receiving block; 9, elastic element. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1-4 , in order to solve the problem that in the non-use state, dust and impurities in the air easily enter the interior of the device, thus easily causing wear to the internal components and shortening the service life, the following preferred technical solutions are provided:
[0023] A distributed power grid connection control device includes a controller main body 1 and an interface main body 2 provided at the upper end of the controller main body 1. An extrapolation mechanism 3 is installed on the outer wall of the controller main body 1. One end of the extrapolation mechanism 3 is fixedly connected to a partition main body 4. A heat dissipation port 5 is provided on the partition main body 4 covering the controller main body 1. The extrapolation mechanism 3 includes an installation box 31 fixedly connected to the outer wall of the controller main body 1. A heat absorption block 32 is fixedly connected inside the installation box 31. A storage cavity 33 is provided on one side of the heat absorption block 32 and is opened inside the installation box 31. The storage cavity 33 is used to store mercury. One end of the storage cavity 33 communicates with an activity channel 34. A piston main body 35 is slidably arranged on the inner wall of the activity channel 34. One end of the piston main body 35 away from the storage cavity 33 is fixedly connected to an extrapolation rod 36. The other end of the extrapolation rod 36 is fixedly connected to the partition main body 4.
[0024] One side of the heat absorption block 32 passes through the outer wall of the installation box 31, and the end thereof is in the inner cavity of the controller body 1. Two groups of storage cavities 33 are provided, and the two groups of storage cavities 33 are symmetrically distributed about the center of the heat absorption block 32. A storage plate 6 is installed at one end of the partition body 4 away from the outer push rod 36. A storage groove 7 is provided inside the storage plate 6. An elastic element 9 is fixedly connected to one end of the receiving block 8. A receiving block 8 is fixedly connected to the bottom plate of the receiving groove 7. The end of the elastic element 9 away from the receiving block 8 is fixedly connected to the partition body 4. When the partition body 4 is detached from covering the heat dissipation port 5, the partition body 4 is recovered into the inner cavity of the storage groove 7, and the elastic element 9 is in a compressed state.
[0025] Specifically, after the controller body 1 has been working for a long time, heat will be generated inside it, and the heat will be absorbed by the heat absorption block 32. After absorption, the temperature will rise rapidly, thereby heating the mercury in the storage chamber 33. At this time, the mercury will expand due to the heat, thereby driving the piston body 35 to move on the inner wall of the active channel 34, thereby driving the outer push rod 36 to push the partition body 4 to move to one side, so that the heat dissipation port 5 is exposed. As the temperature gets higher and higher, the area of the heat dissipation port 5 will increase, and the heat dissipation effect will be improved. When the partition body 4 moves to one side, it will be recovered into the storage groove 7, thereby compressing the elastic element 9. Therefore, when it is not in working state, the mercury will shrink after the temperature drops. At this time, the force of the elastic element 9 will drive the partition body 4 to cover the heat dissipation port 5 again, thereby preventing dust from entering and increasing the service life. This solves the problem that dust and impurities in the air are easy to enter the interior of the device when not in use, thereby easily causing internal components to be worn and shortening the service life.
[0026] Working principle: After the controller body 1 has been working for a long time, heat will be generated inside it, and the heat will be absorbed by the heat absorption block 32. After absorption, the temperature will rise rapidly, thereby heating the mercury in the storage chamber 33. At this time, the mercury will expand due to the heat, thereby driving the piston body 35 to move on the inner wall of the active channel 34, thereby driving the outer push rod 36 to push the partition body 4 to move to one side, so that the heat dissipation port 5 is exposed. As the temperature gets higher and higher, the area of the heat dissipation port 5 will increase. When the partition body 4 moves to one side, it will be recovered into the storage groove 7, thereby compressing the elastic element 9. Therefore, when it is not in working state, the mercury will shrink after the temperature drops. At this time, the force of the elastic element 9 will drive the partition body 4 to cover the heat dissipation port 5 again.
[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0028] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A distributed power grid-connected control device, comprising a controller body (1), and an interface body (2) arranged at the upper end of the controller body (1), characterized in that: An external push mechanism (3) is installed on the outer wall of the controller body (1); one end of the external push mechanism (3) is fixedly connected to a partition body (4); and a heat dissipation port (5) is provided at a location where the partition body (4) covers the controller body (1); The external push mechanism (3) comprises an installation box (31) fixedly connected to the outer wall of the controller body (1), a heat absorbing block (32) fixedly connected inside the installation box (31), a storage chamber (33) opened inside the installation box (31) is provided on one side of the heat absorbing block (32), the storage chamber (33) is used to store mercury, one end of the storage chamber (33) is connected to a movable channel (34), a piston body (35) is slidably provided on the inner wall of the movable channel (34), an external push rod (36) is fixedly connected to one end of the piston body (35) away from the storage chamber (33), and the other end of the external push rod (36) is fixedly connected to the partition body (4).
2. A distributed power grid-connected control device according to claim 1, characterized in that: One side of the heat absorption block (32) penetrates the outer wall of the installation box (31), and one end thereof penetrates is located in the inner cavity of the controller body (1).
3. A distributed power grid-connected control device according to claim 1, characterized in that: The storage chambers (33) are provided in two groups, and the two groups of storage chambers (33) are symmetrically distributed about the center of the heat absorption block (32).
4. A distributed power grid-connected control device according to claim 1, characterized in that: A receiving plate (6) is installed at one end of the partition body (4) away from the outer push rod (36), and a receiving groove (7) is provided inside the receiving plate (6).
5. A distributed power grid-connected control device according to claim 4, characterized in that: One end of the receiving block (8) is fixedly connected to an elastic element (9), and the inner bottom plate of the receiving groove (7) is fixedly connected to the receiving block (8).
6. A distributed power grid-connected control device according to claim 5, characterized in that: One end of the elastic element (9) away from the receiving block (8) is fixedly connected to the partition body (4).
7. A distributed power grid-connected control device according to claim 6, characterized in that: When the partition body (4) is separated from covering the heat dissipation opening (5), the partition body (4) is recovered into the inner cavity of the storage groove (7), and the elastic element (9) is in a compressed state.