Hydroelectric power generation device

Abstract

The utility model discloses a hydroelectric power generation device which comprises a power generation mechanism and an impeller mechanism, the impeller mechanism comprises a shell and an impeller, the shell is provided with a water flow cavity, and the impeller can be installed in the water flow cavity in the mode of rotating around the axis of the impeller and is driven by water flow to rotate when the water flow passes through the water flow cavity. A first magnet is installed on the impeller, the power generation mechanism is located outside the water flow cavity and comprises a stator, a rotor and a second magnet, the rotor and the stator are matched in a sleeved mode, the second magnet and the rotor are relatively fixed, and the second magnet is arranged on the periphery of the water flow cavity in a matched mode and arranged opposite to the first magnet on the impeller, so that the second magnet and the first magnet are matched to form a magnetic transmission chain. When the impeller rotates, the rotor is driven to rotate in the same direction through the magnetic transmission chain. According to the utility model, high-efficiency and high-power generation can be realized, the risk of water leakage can be avoided, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation devices, in particular to a hydroelectric power generation device. Background Art

[0002] The control mode of bathroom equipment is gradually becoming electronic. For example, faucets and showers are electrically controlled to control water output and adjust water temperature. Some faucets and showers also need to display water temperature. These functions require the use of electricity. Therefore, it is necessary to install a hydroelectric power generation device in the faucet and shower to power it. However, the existing hydroelectric power generation devices have the following problems: 1. Existing hydroelectric power generation devices usually use a magnet on the impeller as the generator rotor, and the stator is directly sleeved on the outside of the impeller. The plastic shell is used in the middle for waterproofing, resulting in a magnetic gap between the rotor and the stator of the generator set of more than 2mm, which makes the magnetic gap larger and seriously affects the power generation efficiency; 2. Existing hydroelectric power generation devices usually use an axis to connect the rotor and impeller of the generator, and use an elastomer as an axial waterproof seal, which will cause difficulty in rotation due to large friction during rotation or leakage caused by excessive aging gap due to long rotation. Utility Model Content

[0003] The utility model aims at the technical problems existing in the prior art and provides a hydroelectric power generation device, which can realize high-efficiency and high-power power generation, avoid the risk of water leakage and increase the service life of the device.

[0004] The utility model adopts the following technical scheme to solve the technical problems: a hydroelectric power generation device, comprising a power generation mechanism and an impeller mechanism, the impeller mechanism comprising a shell and an impeller, the shell being provided with a water flow chamber, the impeller being rotatably installed in the water flow chamber around its axis, and being driven to rotate by the water flow when the water flow chamber passes through the water flow chamber; a first magnet being installed on the impeller, the power generation mechanism being located outside the water flow chamber, and comprising a stator, a rotor, and a second magnet, the rotor being fitted with the stator, the second magnet being relatively fixed to the rotor, and the second magnet being fitted on the periphery of the water flow chamber, and being arranged opposite to the first magnet on the impeller, so that the second magnet and the first magnet are fitted to form a magnetic transmission chain, and when the impeller rotates, the rotor is driven to rotate in the same direction through the magnetic transmission chain.

[0005] Furthermore, the rotor is mounted outside the stator, and the stator is provided with a coil winding; and the gap between the rotor and the stator is less than 0.5 mm.

[0006] Furthermore, the number of the first magnet and the number of the second magnet are multiple, the multiple first magnets are distributed along the circumference of the impeller, the multiple second magnets correspond to the multiple first magnets one by one, and each second magnet is distributed along the radial direction of the impeller with the corresponding first magnet, and each second magnet is arranged opposite to the corresponding first magnet with opposite poles.

[0007] Furthermore, the magnetic poles of every two adjacent first magnets are distributed in opposite directions.

[0008] Furthermore, the power generation mechanism also includes a transmission member having an annular surrounding wall, the transmission member is coaxially fixed to the rotor, the annular surrounding wall of the transmission member is located outside the impeller, and the second magnet is installed on the annular surrounding wall of the transmission member.

[0009] Furthermore, a first rotating shaft is fixed on the central axis of the rotor, and the transmission member is located on a side of the rotor close to the impeller in the axial direction and is fixed to the first rotating shaft, so that the transmission member drives the rotor to rotate through the first rotating shaft.

[0010] Furthermore, a second rotating shaft is fixed to the shell, the second rotating shaft extends into the water flow cavity, and the impeller is rotatably connected to the second rotating shaft; the impeller is sleeved outside the second rotating shaft, and a bearing is arranged between the impeller and the second rotating shaft.

[0011] Furthermore, a water inlet hole is provided on the wall of the water flow chamber, and the water inlet hole is an inclined water hole. Water enters the water flow chamber from the water inlet hole and drives the impeller to rotate; the water flow chamber is provided with a water outlet hole at a position corresponding to one side of the axial direction of the impeller to allow the water entering the water flow chamber to flow out.

[0012] Furthermore, the shell is provided with a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are respectively connected to the water flow cavity; the shell is formed by at least two parts sealed and connected.

[0013] Furthermore, the power generation mechanism also includes a protective shell, which is connected to the housing, and the stator and the rotor are located in the protective shell.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model makes the power generation mechanism independent of the water flow chamber, and forms a magnetic transmission chain through the cooperation of the first magnet on the impeller and the second magnet on the rotor, so as to realize the gap transmission between the impeller and the rotor. There is no need to set elastic parts for water-proof sealing, thereby avoiding the difficulty of rotation caused by large friction, and the risk of aging of elastic parts due to long rotation, which makes the gap too large and causes water leakage, thereby improving the power generation efficiency and increasing the service life of the device.

[0016] 2. The rotor is mounted outside the stator, and the stator is provided with coil windings. The gap between the rotor and the stator is less than 0.5 mm, thereby greatly shortening the magnetic gap and improving the power generation efficiency.

[0017] 3. The second magnets are arranged opposite to the corresponding first magnets with opposite poles, and the poles of each two adjacent first magnets are distributed in opposite directions, so that even if the impeller and the rotor are misaligned in rotation, the rotor will be repelled and pushed back because the poles of the first and second magnets are the same, thereby realizing a tight connection between the impeller and the rotor in the air.

[0018] 4. A bearing is arranged between the impeller and the second rotating shaft to reduce the friction between the impeller and the second rotating shaft, increase the rotation speed, and thus improve the power generation efficiency.

[0019] 5. The power generation mechanism also includes a protective shell to prevent the stator and rotor from being disturbed by the outside world and foreign matter from entering.

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments; however, the hydroelectric power generation device of the utility model is not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an exploded schematic diagram of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the utility model (excluding the base);

[0023] Figure 3 It is an exploded schematic diagram of the power generation mechanism of the utility model (without the protective shell);

[0024] Figure 4 It is an exploded schematic diagram of the impeller mechanism of the utility model (excluding the base);

[0025] Figure 5 It is a cross-sectional schematic diagram of the utility model;

[0026] Figure 6 yes Figure 5 Schematic diagram of the cross section along AA;

[0027] Figure 7 yes Figure 5 Schematic diagram of the cross section along BB;

[0028] Figure 8 It is a schematic diagram of the magnetic poles of the first magnet and the second magnet of the utility model;

[0029] In the figure: 1. power generation mechanism; 11. stator; 111. coil winding; 12. rotor; 13. transmission member; 131. second magnet; 14. first rotating shaft; 15. protective cover; 16. fixed seat; 2. impeller mechanism; 21. upper shell; 211. water flow chamber; 212. water inlet; 22. impeller; 221. first magnet; 23. second rotating shaft; 24. bearing; 25. base; 251. water inlet channel; 252. water outlet channel; 26. end cover; 261. water outlet; 27 / 28. sealing ring; 3. screws. DETAILED DESCRIPTION

[0030] In the present utility model, the terms "first", "second", etc. are only used to distinguish similar objects, rather than to describe a specific order or sequence, and cannot be understood as indicating or implying relative importance. In the description, the orientation or position relationship indicated by "inside", "outside", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more. In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, or a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] See also Figure 1-Figure 8 As shown, a hydroelectric power generation device of the utility model comprises a power generation mechanism 1 and an impeller mechanism 2, wherein the impeller mechanism 2 comprises a housing and an impeller 22, wherein the housing is provided with a water flow chamber 211, and the impeller 22 is rotatably installed in the water flow chamber 211 around its axis, and is driven to rotate by the water flow when the water flow chamber 211 passes through the water flow chamber 211. A first magnet 221 is installed on the impeller 22, and the power generation mechanism 1 is located outside the water flow chamber 211, and comprises a stator 11, a rotor 12 and a second magnet 131, wherein the rotor 12 is fitted with the stator 11, and the second magnet 131 is relatively fixed with the rotor 12, and the second magnet 131 is fitted with the outer periphery of the water flow chamber 211, and is arranged relative to the first magnet 221 on the impeller 22, so that the second magnet 131 cooperates with the first magnet 221 to form a magnetic transmission chain, and when the impeller 22 rotates, the rotor 12 is driven to rotate in the same direction through the magnetic transmission chain.

[0033] The rotor 12 is mounted outside the stator 11, and the stator 11 is provided with a coil winding 111. The gap between the rotor 12 and the stator 11 is less than 0.5 mm, and the magnetic gap is small, thereby improving the power generation efficiency of the device.

[0034] There are multiple first magnets 221 and second magnets 131, and the multiple first magnets 221 are distributed along the circumference of the impeller 22. The multiple second magnets 131 correspond to the multiple first magnets 221 one by one, and each second magnet 131 is distributed along the radial direction of the impeller 22 with the corresponding first magnet 221, and each second magnet 131 is arranged with the opposite magnetic poles of the corresponding first magnet 221. The magnetic poles of each adjacent two first magnets 221 are distributed in opposite directions. Specifically, Figure 8 As shown, the number of the first magnets 221 and the number of the second magnets 131 are six respectively. Among two adjacent first magnets 221, the S pole of one first magnet 221 faces the radial inward direction of the impeller 22, while the S pole of the other first magnet 221 faces the radial outward direction of the impeller 22.

[0035] The power generation mechanism 1 further includes a transmission member 13 having an annular surrounding wall, the transmission member 13 is coaxially fixed to the rotor 12, the annular surrounding wall of the transmission member 13 is located outside the impeller 22, and the second magnet 131 is installed on the annular surrounding wall of the transmission member 13. A first rotating shaft 14 is fixed on the central axis of the rotor 12, the transmission member 13 is located on a side of the rotor 12 close to the impeller 22 in the axial direction, and is fixed to the first rotating shaft 14, so that the transmission member 13 drives the rotor 12 to rotate through the first rotating shaft 14, and the stator 11 is sleeved outside the first rotating shaft 14.

[0036] The housing is fixed with a second rotating shaft 23, which extends into the water flow chamber 211, and the impeller 22 is rotatably connected to the second rotating shaft 23. The impeller 22 is mounted outside the second rotating shaft 23, and a bearing 24 is arranged between the impeller 22 and the second rotating shaft 23 to reduce the friction between the two and increase the rotation speed of the impeller 22.

[0037] A water inlet hole 212 is provided on the wall of the water flow chamber 211. The water inlet hole 212 is an inclined water hole. Water enters the water flow chamber 211 from the water inlet hole 212. The special structure of the inclined water hole can accelerate the water flow speed to impact the impeller 22 and drive the impeller 22 to rotate. The water flow chamber 211 is provided with a water outlet hole 261 at a position corresponding to one side of the axial direction of the impeller 22, so that the water entering the water flow chamber 211 can flow out. The housing is provided with a water inlet channel 251 and a water outlet channel 252, and the water inlet channel 251 and the water outlet channel 252 are connected to the water flow chamber 211 respectively. The housing is formed by at least two parts sealed and connected.

[0038] Specifically, the housing includes an upper housing 21, a base 25 and an end cover 26. The end cover 26 is fixed to the bottom of the upper housing 21, and a sealing ring 28 is provided between the two, so that the water flow cavity 211 is formed inside the upper housing 21. The end cover 26 is provided with a water outlet 261. The two ends of the second rotating shaft 23 are respectively fixedly connected to the upper housing 21 and the end cover 26. The upper housing 21 and the base 25 are sealed and connected, and a sealing ring 27 is provided between the two. The upper housing 21 is provided with a water flow cavity 211 and a water inlet hole 212, and the base 25 is provided with a water inlet channel 251 and a water outlet channel 252.

[0039] The power generation mechanism 1 also includes a protective shell, which is connected to the shell. The stator 11 and the rotor 12 are located in the protective shell, which can prevent the stator 11 and the rotor 12 from being disturbed by the outside world and foreign objects from entering. Specifically, the protective shell includes a protective cover 15 and a fixing seat 16. The protective cover 15 and the fixing seat 16 together form a space for installing the stator 11 and the rotor 12. The first rotating shaft 14 fixed on the axis of the rotor 12 passes through the fixing seat 16 and is connected to the transmission member 13, and the stator 11 is fixedly installed on the fixing seat 16, so that the first rotating shaft 14 can be prevented from driving the stator 11 to rotate. The screw 3 passes through the protective cover 15 and the fixing seat 16 in turn and is threadedly connected to the upper shell 21, so that the power generation mechanism 1 and the impeller mechanism 2 are fixed to each other.

[0040] The utility model is a hydroelectric power generation device, the working principle is as follows: water flows from the water inlet channel 251 through the water inlet hole 212 on the upper shell 21, enters the water flow chamber 211 in a tangential manner to impact the impeller 22, thereby causing the impeller 22 to rotate, and drives the first magnet 221 thereon to rotate, and flows out from the water outlet channel 252 through the water outlet hole 261. Specifically, the water flow route is as follows: Figure 5 , Figure 6 At this time, since the first magnet 221 forms a magnetic link with the second magnet 131 installed on the transmission member 13, gap transmission is realized, so that the transmission member 13 rotates with the rotation of the impeller 22, thereby driving the rotor 12 to rotate to achieve power generation, and since the impeller 22 and the transmission member 13 are gap-transmitted, the water in the water flow cavity 211 is completely isolated from the power generation mechanism 1, which can prevent the risk of water leakage.

[0041] The utility model is a hydroelectric power generation device, the transmission principle is as follows: Figure 8 As shown, the second magnets 131 are respectively arranged opposite to the corresponding first magnets 221 with opposite poles. When the first magnet 221 on the impeller 22 rotates, the second magnet 131 on the transmission member 13 rotates due to the attraction of different poles. Since the poles of two adjacent first magnets 221 are distributed in opposite directions, even if the impeller 22 and the transmission member 13 are rotationally misaligned, the transmission member 13 will be repelled and pushed back due to the same poles of the relative first magnets 221 and the second magnet 131, thereby realizing a tight connection between the impeller 22 and the transmission member 13 in the air.

[0042] The utility model provides a hydroelectric power generation device which can realize hydroelectric power generation efficiently, can provide a high-power continuous power supply for various areas where it is inconvenient to reserve mains electricity, such as bathrooms, and provides a basic energy platform for realizing intelligent control of products.

[0043] The utility model provides a hydroelectric power generation device, and the unrelated parts are the same as the prior art or can be implemented by using the prior art.

[0044] The above embodiments are only used to further illustrate a hydroelectric power generation device of the utility model, but the utility model is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model fall within the protection scope of the technical solution of the utility model.

Claims

1. A hydroelectric power generation device, comprising a power generation mechanism and an impeller mechanism, wherein the impeller mechanism comprises a housing and an impeller, wherein the housing is provided with a water flow cavity, and the impeller is rotatably mounted in the water flow cavity around its axis and is driven to rotate by the water flow when the water flow cavity passes through the water flow cavity; characterized in that: A first magnet is installed on the impeller, and the power generation mechanism is located outside the water flow chamber and includes a stator, a rotor and a second magnet. The rotor and the stator are fitted together, and the second magnet is relatively fixed to the rotor. The second magnet is fitted around the periphery of the water flow chamber and is arranged opposite to the first magnet on the impeller, so that the second magnet cooperates with the first magnet to form a magnetic transmission chain. When the impeller rotates, the rotor is driven to rotate in the same direction through the magnetic transmission chain.

2. The hydroelectric power generation device according to claim 1, characterized in that: The rotor is sleeved outside the stator, and a coil winding is arranged on the stator; and a gap between the rotor and the stator is less than 0.5 mm.

3. The hydroelectric power generation device according to claim 1, characterized in that: The number of the first magnets and the second magnets is respectively multiple, the multiple first magnets are distributed along the circumference of the impeller, the multiple second magnets correspond to the multiple first magnets one by one, and each second magnet is distributed along the radial direction of the impeller with the corresponding first magnet, and each second magnet is arranged opposite to the corresponding first magnet with opposite poles.

4. The hydroelectric power generation device according to claim 3, characterized in that: The magnetic poles of each adjacent two first magnets are distributed in opposite directions.

5. The hydroelectric power generation device according to any one of claims 1 to 4, characterized in that: The power generation mechanism also includes a transmission member having an annular surrounding wall, the transmission member is coaxially fixed to the rotor, the annular surrounding wall of the transmission member is located at the periphery of the impeller, and the second magnet is installed on the annular surrounding wall of the transmission member.

6. The hydroelectric power generation device according to claim 5, characterized in that: A first rotating shaft is fixed on the central axis of the rotor, and the transmission member is located on a side of the rotor close to the impeller in the axial direction and is fixed to the first rotating shaft so that the transmission member drives the rotor to rotate through the first rotating shaft.

7. The hydroelectric power generation device according to claim 1, characterized in that: The housing is fixed with a second rotating shaft, the second rotating shaft extends into the water flow cavity, and the impeller is rotatably connected to the second rotating shaft; the impeller is sleeved outside the second rotating shaft, and a bearing is arranged between the impeller and the second rotating shaft.

8. The hydroelectric power generation device according to claim 1, characterized in that: A water inlet hole is provided on the wall of the water flow cavity, and the water inlet hole is an inclined water hole. Water enters the water flow cavity from the water inlet hole and drives the impeller to rotate; the water flow cavity is provided with a water outlet hole at a position corresponding to one side of the axial direction of the impeller to allow the water entering the water flow cavity to flow out.

9. The hydroelectric power generation device according to claim 1 or 8, characterized in that: The shell is provided with a water inlet channel and a water outlet channel, and the water inlet channel and the water outlet channel are respectively connected to the water flow cavity; the shell is formed by at least two parts that are sealed and connected.

10. The hydroelectric power generation device according to claim 1, characterized in that: The power generation mechanism further comprises a protective shell, which is connected to the housing, and the stator and the rotor are located in the protective shell.

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