Hydraulic microgenerator

Abstract

The utility model discloses a kind of hydraulic microgenerator, including shell, water outlet cover, impeller and generator, wherein: a baffle part is formed in shell, baffle part is cut off to form a containing cavity in shell interior, shell is provided with liquid inlet with containing cavity intercommunication, baffle part is provided with multiple connecting grooves, connecting groove is used for liquid outflow in containing cavity;Water outlet cover one end is arranged in containing cavity and is abutted with baffle part, and water outlet cover and shell form liquid outlet passage, and are communicated with connecting groove;Impeller is arranged in containing cavity, generator is fixed in shell interior, and generator driving end is fixedly connected with impeller.The utility model liquid enters containing cavity by liquid inlet, flows to connecting groove by impeller, then flows out from connecting groove to shell outside, impeller is subjected to liquid force as far as possible along impeller axial direction, reduces impeller radial force, can effectively avoid that shaft is deformed and causes jam, connecting groove is provided with multiple, can make impeller stress more uniform, reduce abrasion.

Description

Technical Field

[0001] This utility model relates to the field of micro generator technology, specifically to a hydraulic micro generator. Background Technology

[0002] A generator is a mechanical device that converts other forms of energy into electrical energy. Driven by a water turbine, steam turbine, diesel engine, or other power machinery, it converts the energy generated by water flow, airflow, fuel combustion, or nuclear fission into mechanical energy, which is then transferred to the generator and converted into electrical energy. Generators have wide applications in industrial and agricultural production, national defense, science and technology, and daily life. There are many types of generators, but their working principle is based on the laws of electromagnetic induction and electromagnetic force. Therefore, the general principle of their construction is to use appropriate magnetic and electrical materials to form mutually electromagnetically inductive magnetic and electrical circuits to generate electromagnetic power and achieve energy conversion. A common generator consists of an impeller, a rotor, and a stator connected in sequence. Wind or water power drives the impeller to rotate, which in turn drives the rotor to rotate inside the stator, cutting magnetic field lines and generating an induced electromotive force to produce electricity.

[0003] Existing micro hydroelectric generators often adopt a side-inlet design, where the impeller is subjected to radial force from the water flow. Over time, this can cause the impeller shaft to deform, leading to impeller jamming and rendering the generator unusable. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a hydraulic micro generator to solve the problem of large radial force on the impeller in the prior art.

[0005] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: A micro hydroelectric generator includes a housing, a water outlet cover, an impeller, and a generator, wherein: a partition is formed inside the housing, the partition divides the interior of the housing into a receiving cavity, the housing has a liquid inlet communicating with the receiving cavity, the partition has multiple connecting grooves for liquid to flow out of the receiving cavity; one end of the water outlet cover is disposed in the receiving cavity and abuts against the partition, the water outlet cover and the housing form a liquid outlet channel, and communicate with the connecting grooves; the impeller is disposed in the receiving cavity, the generator is fixed inside the housing, and the generator drive end is fixedly connected to the impeller.

[0006] Preferably, multiple liquid outlet channels are formed between the water outlet cover and the outer shell, and each of the multiple liquid outlet channels corresponds to one of the multiple connecting grooves. One end of each liquid outlet channel is connected to the connecting groove, and the other end extends to the outside of the outer shell.

[0007] Preferably, the water outlet cover has multiple liquid outlet grooves, and the liquid outlet grooves form the liquid outlet channel with the outer shell. The liquid outlet grooves are wedge-shaped, and the wide end of the liquid outlet grooves is connected to the connecting groove, while the narrow end extends to the outside of the outer shell.

[0008] Preferably, the plurality of connecting grooves are arranged circumferentially along the impeller, and the connecting grooves are formed radially along the impeller.

[0009] Preferably, the impeller forms a circular outline with its diameter and axial projection, and one end of the connecting groove is received within the circular outline, while the other end extends outside the circular outline.

[0010] Preferably, the micro hydroelectric generator further includes a connecting shaft. The generator is disposed on the side of the partition portion away from the receiving cavity. The connecting shaft passes through the partition portion and is fixedly connected to the impeller. The other end is fixedly connected to the generator drive end.

[0011] Preferably, the water outlet cover has a central abutment portion, and the end of the connecting shaft away from the generator is rotatably connected to the abutment portion.

[0012] Preferably, the inner side of the receiving cavity protrudes inward to form a limiting boss, and the outer side of the water outlet cover is recessed inward to form a limiting groove, and the limiting boss and the limiting boss are connected in a cooperative manner.

[0013] Preferably, the water outlet cover has multiple drain ports, and the drain ports are connected to the receiving cavity.

[0014] Compared with the prior art, the beneficial effects of this utility model include: the liquid enters the receiving cavity through the inlet, flows through the impeller to the connecting groove, and then flows out of the outer shell from the connecting groove. The impeller is subjected to liquid force along the impeller axis as much as possible, reducing the radial force on the impeller. This can effectively avoid the shaft deformation caused by force and jamming. The multiple connecting grooves can make the impeller more evenly stressed and reduce wear. Attached Figure Description

[0015] Figure 1 This is a perspective view of the micro hydroelectric generator provided by this utility model;

[0016] Figure 2 This is a front view of the micro hydroelectric generator provided by this utility model;

[0017] Figure 3 yes Figure 2 Sectional view at point A in the middle;

[0018] Figure 4 This is a perspective view of the water outlet cover of the micro hydroelectric generator provided by this utility model;

[0019] Figure 5This is a perspective view of the casing of the micro hydroelectric generator provided by this utility model;

[0020] Reference numerals: 1-outer shell, 2-outlet cover, 3-impeller, 4-generator, 5-connecting shaft, 1a-partition plate, 1b-accommodating cavity, 1c-limiting boss, 2a-outlet groove, 2b-abutment part, 2c-limiting groove, 2d-drain outlet, 1aa-inlet, 1ab-connecting groove. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] Please see Figures 1 to 5 This embodiment provides a hydraulic micro generator 4, which includes a housing 1, a water outlet cover 2, an impeller 3, and a generator 4. The housing 1 is used to connect and support other components, the water outlet cover 2 is used to protect the components inside the housing 1, the impeller 3 rotates in the receiving cavity 1b under the impact of water flow, and the generator 4 rotates to cut the magnetic field and generate electrical energy.

[0023] A partition portion 1a is formed inside the outer casing 1, dividing the interior of the outer casing 1 into a receiving cavity 1b. The outer casing 1 has a liquid inlet 1aa communicating with the receiving cavity 1b. A pipe can be connected to the liquid inlet 1aa to introduce water into the receiving cavity 1b. The partition portion 1a has multiple connecting grooves 1ab for liquid to flow out of the receiving cavity 1b. The multiple connecting grooves 1ab are arranged circumferentially along the impeller 3 and radially along the impeller 3. Preferably, in this embodiment, the multiple connecting grooves 1ab are evenly arranged circumferentially along the impeller 3, so water flows out from the multiple connecting grooves 1ab respectively, making the force on the impeller 3 more uniform. Preferably, the impeller 3 forms a circular outline with its diameter projected axially. One end of the connecting groove 1ab is housed within the circular outline, and the other end extends outside the circular outline. Therefore, water flows radially from the inside to the outside of the impeller 3, effectively driving the impeller 3 to rotate.

[0024] One end of the water outlet cover 2 is disposed in the receiving cavity 1b and abuts against the partition portion 1a. A liquid outlet channel is formed between the water outlet cover 2 and the outer shell 1, and it communicates with the connecting groove 1ab. Therefore, the receiving cavity 1b is formed by the water outlet cover 2 and the outer shell 1. Specifically, multiple liquid outlet channels are formed between the water outlet cover 2 and the outer shell 1. Each of the multiple liquid outlet channels corresponds to a multiple of the connecting grooves 1ab. One end of the liquid outlet channel communicates with the connecting groove 1ab, and the other end extends to the outside of the outer shell 1. The liquid outlet channel can be a hole opened along the water outlet cover 2, or it can be in the following form: multiple liquid outlet grooves 2a are opened in the water outlet cover 2. A liquid outlet channel is formed between the liquid outlet grooves 2a and the outer shell 1. The liquid outlet grooves 2a are wedge-shaped, and the wide end of the liquid outlet grooves 2a communicates with the connecting groove 1ab, while the narrow end extends to the outside of the outer shell 1. Therefore, the water in the receiving cavity 1b flows through the connecting groove 1ab into the liquid outlet grooves 2a, and then flows out through the liquid outlet grooves 2a. The water flow in the receiving cavity 1b can be set to flow out only from the liquid outlet channel, or it can be set to discharge from other outlets at the same time. Specifically, in this embodiment, the water outlet cover 2 has multiple liquid outlets 2d, which are connected to the receiving cavity 1b. When multiple liquid outlets 2d are set, the pressure in the receiving cavity 1b is lower when the liquid flow is large. When the flow is small, the liquid outlets 2d can be closed, or no liquid outlet can be set.

[0025] The impeller 3 is disposed in the receiving cavity 1b, and the generator 4 is fixed inside the outer casing 1, with the drive end of the generator 4 fixedly connected to the impeller 3. Preferably, the micro-hydroelectric generator 4 also includes a connecting shaft 5. The generator 4 is disposed on the side of the partition portion 1a away from the receiving cavity 1b, and the connecting shaft 5 passes through the partition portion 1a and is fixedly connected to the impeller 3, with the other end fixedly connected to the drive end of the generator 4. Furthermore, an abutment portion 2b is formed in the center of the water outlet cover 2, and the end of the connecting shaft 5 away from the generator 4 is rotatably connected to the abutment portion 2b. The abutment portion 2b and the connecting shaft 5 can be rotatably connected by a bearing.

[0026] Preferably, the inner side of the receiving cavity 1b protrudes inward to form a limiting boss 1c, and the outer side of the water outlet cover 2 is recessed inward to form a limiting groove 2c. The limiting boss 1c and the limiting boss 2c are connected in a cooperative manner. After the water outlet cover 2 is connected to the outer shell 1, the limiting boss 1c and the limiting groove 2c are connected in a cooperative manner, which can prevent the water outlet cover 2 and the outer shell 1 from rotating relative to each other.

[0027] In summary, the present invention provides a hydraulic micro generator 4 in which liquid enters the receiving cavity 1b through the inlet 1aa, flows through the impeller 3 to the connecting groove 1ab, and then flows out of the outer casing 1 from the connecting groove 1ab. The impeller 3 is subjected to liquid force as much as possible along the axial direction of the impeller 3, reducing the radial force on the impeller 3, which can effectively avoid the deformation of the shaft caused by the force and cause jamming. Multiple connecting grooves 1ab can make the force on the impeller 3 more uniform and reduce wear.

[0028] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A micro-hydroelectric generator, characterized in that, Includes the casing, water outlet cover, impeller, and generator, among which: A partition is formed inside the outer shell, which divides the interior of the outer shell into a receiving cavity. The outer shell has a liquid inlet communicating with the receiving cavity. The partition has multiple connecting grooves for liquid to flow out of the receiving cavity. One end of the water outlet cover is disposed in the receiving cavity and abuts against the partition portion. A liquid outlet channel is formed between the water outlet cover and the outer shell and communicates with the connecting groove. The impeller is disposed in the receiving cavity, the generator is fixed inside the housing, and the generator drive end is fixedly connected to the impeller.

2. A micro-hydroelectric generator according to claim 1, characterized in that, Multiple liquid outlet channels are formed between the water outlet cover and the outer shell. Each of the multiple liquid outlet channels corresponds to one of the multiple connecting grooves. One end of each liquid outlet channel is connected to the connecting groove, and the other end extends to the outside of the outer shell.

3. A micro-hydroelectric generator according to claim 2, characterized in that, The water outlet cover has multiple liquid outlet grooves, and the liquid outlet grooves form the liquid outlet channel with the outer shell. The liquid outlet grooves are wedge-shaped, and the wide end of the liquid outlet grooves is connected to the connecting groove, while the narrow end extends to the outside of the outer shell.

4. A micro-hydroelectric generator according to claim 1, characterized in that, The plurality of connecting grooves are arranged circumferentially along the impeller, and the connecting grooves are formed radially along the impeller.

5. A micro-hydroelectric generator according to claim 1, characterized in that, The impeller forms a circular outline with its diameter and axial projection. One end of the connecting groove is housed within the circular outline, and the other end extends outside the circular outline.

6. A micro-hydroelectric generator according to claim 1, characterized in that, The micro hydroelectric generator also includes a connecting shaft. The generator is located on the side of the partition portion away from the receiving cavity. The connecting shaft passes through the partition portion and is fixedly connected to the impeller. The other end is fixedly connected to the generator drive end.

7. A micro-hydroelectric generator according to claim 6, characterized in that, The water outlet cover has a central abutment portion, and the end of the connecting shaft away from the generator is rotatably connected to the abutment portion.

8. A micro-hydroelectric generator according to claim 1, characterized in that, The inner side of the receiving cavity protrudes inward to form a limiting boss, and the outer side of the water outlet cover is recessed inward to form a limiting groove. The limiting boss and the limiting boss are connected in a cooperative manner.

9. A micro-hydroelectric generator according to claim 1, characterized in that, The water outlet cover has multiple drainage ports, and the drainage ports are connected to the receiving cavity.

Images