Moving-iron Stirling generator

Abstract

The invention relates to the technical field of generators, and discloses a moving-iron Stirling generator which comprises a bottom plate, a Stirling generator body fixedly mounted on the upper surface of the bottom plate, and a connecting rod and a heating cover which are mounted on the Stirling generator body and can move linearly. When a plurality of ignited cotton cores heat a heating cover, the temperature in a cover shell is gradually increased, so that a thermal expansion solution in a heat conduction cylinder mounted on the inner wall of the cover shell is heated and expanded, a first piston is pushed outwards, the first piston drives a rack to move through a guide rod and a vertical plate, and the rack drives a gear ring meshed with the rack to rotate; the gear ring can drive the rotating disc to rotate, the adjusting holes formed in the rotating disc are staggered from the through holes, and therefore the size of flame emitted by the cotton core is reduced, the temperature of the heating end of a heat source is kept within the designed range, and excessive expansion or aging or damage of the heating end caused by the too high temperature is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of generators, and in particular to a moving iron Stirling generator. Background Art

[0002] A Stirling engine is a heat engine that converts heat energy into mechanical energy by heating and cooling a gas. This engine can operate efficiently at relatively low temperature differences, and the working fluid is completely enclosed, so there is no gas loss. In a moving iron Stirling generator, it usually includes an electromagnetic system, where the "moving iron" refers to an iron core that moves in a magnetic field. This design can convert the mechanical energy of the piston into electrical energy.

[0003] Existing Stirling generators need to be controlled within a certain temperature range when heating, because the efficiency and operating stability of the Stirling engine are highly dependent on the temperature difference of the heat source. The existing heating method is usually to directly and continuously heat the heating end by igniting the fuel. As the heating continues, the temperature of the heating end will gradually increase, causing the temperature of the heating end to exceed the designed temperature range. Excessive temperature will cause excessive expansion, aging or damage to the heating end. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a moving iron Stirling generator.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A moving-iron Stirling generator comprises a base plate, on the upper surface of which a Stirling generator body is fixedly mounted, and further comprises a connecting rod and a heating hood which are mounted on the Stirling generator body and can move linearly, a fuel barrel is fixedly mounted on the outer surface of the base plate close to the heating hood, a cover shell is fixedly mounted on the top of the fuel barrel, one side of the cover shell is an open structure, an exhaust pipe connected to the interior of the cover shell is fixedly mounted on the top of the cover shell, the heating hood is arranged inside the cover shell, a plurality of cotton cores are evenly penetrated and fixedly mounted on the top of the fuel barrel, a fixing plate is penetrated and fixedly mounted on the bottom of the cover shell, a plurality of through holes corresponding to the cotton cores are evenly penetrated and opened on the upper surface of the fixing plate, and an adjustment mechanism is installed inside the cover shell.

[0006] As a further solution of the present invention, the adjustment mechanism includes a turntable rotatably mounted on the upper surface of the fixed disk, the upper surface of the turntable is evenly penetrated with a plurality of adjustment holes corresponding to the through holes, a heat-conducting tube is fixedly mounted on the inner wall of the cover shell near its top end, one end of the heat-conducting tube is a closed structure, and the other end is an open structure, a bracket is fixedly mounted on the inner wall of the open end of the heat-conducting tube, a guide rod is inserted through the outer surface of the bracket, a first piston is fixedly mounted on one end of the guide rod, the first piston is slidably mounted on the inner wall of the heat-conducting tube, the inner wall of the heat-conducting tube is filled with a thermal expansion solution, and a toggle assembly is installed between the guide rod and the turntable.

[0007] As a further solution of the present invention, the toggle assembly includes a vertical plate fixedly mounted on the end of the guide rod away from the first piston, a rack is fixedly mounted on the bottom end of the vertical plate, a gear ring is fixedly mounted on the outer periphery of the turntable, and the rack is meshed with the gear ring.

[0008] As a further solution of the present invention, a compression spring is sleeved on the outer surface of the guide rod, and the compression spring is arranged between the first piston and the bracket.

[0009] As a further solution of the present invention, an air supply mechanism for supplying air to the interior of the cover shell is also installed on the base plate, and the air supply mechanism includes a piston cylinder fixedly installed on the upper surface of the base plate, the end of the piston cylinder close to the cover shell is a closed structure, and a conduit that is connected to each other is fixedly installed between the end of the closed end of the piston cylinder and the cover shell, a mesh cover is fixedly installed on the inner wall of the cover shell close to the air outlet end of the conduit, and an air pumping assembly is installed between the piston cylinder and the connecting rod.

[0010] As a further solution of the present invention, the inflation assembly includes a mounting plate fixedly mounted on the outer surface of the connecting rod, a connecting rod is fixedly mounted on the outer surface of the mounting plate close to the piston cylinder, a second piston is fixedly mounted on one end of the connecting rod away from the mounting plate, and the second piston is slidably mounted on the inner wall of the piston cylinder.

[0011] As a further solution of the present invention, a first one-way valve is installed on the conduit, a second one-way valve is installed through the second piston, and the first one-way valve and the second one-way valve are arranged in opposite directions.

[0012] As a further solution of the present invention, a filling hole is formed through the top of the fuel barrel, and a sealing plug is threadedly connected to the inside of the filling hole.

[0013] As a further solution of the present invention, a sealing door is hinged on the open side of the cover shell.

[0014] The beneficial effects of the present invention are: 1. When the ignited multiple cotton cores heat the heating cover, the temperature inside the cover will gradually increase, causing the heat expansion solution in the heat-conducting cylinder installed on the inner wall of the cover to expand due to the heat, thereby pushing the first piston outward, causing the first piston to drive the rack to move through the guide rod and the vertical plate, causing the rack to drive the gear ring meshing with it to rotate, so that the gear ring can drive the turntable to rotate, causing the adjustment hole and the through hole on the turntable to be misaligned, thereby reducing the size of the flame emitted by the cotton core, so that the temperature of the heating end of the heat source is maintained within the designed range, avoiding excessive expansion, aging or damage of the heating end caused by excessive temperature; 2. When the Stirling generator body is operating, the connecting rod will move back and forth in a straight line, so that the connecting rod can drive the second piston to move back and forth inside the piston cylinder through the mounting plate and the connecting rod, so that the second piston cooperates with the first one-way valve and the second one-way valve to press air into the piston cylinder, and the pressed air is injected into the cover through the conduit, so as to ensure that there is always sufficient oxygen inside the cover for fuel combustion and ensure the stability of the heat source. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a moving iron Stirling generator proposed by the present invention; Figure 2 A schematic diagram of the internal structure of a housing of a moving iron Stirling generator proposed by the present invention; Figure 3 A schematic diagram of the internal structure of a fuel barrel of a moving iron Stirling generator proposed by the present invention; Figure 4 A schematic diagram of a cross-sectional structure of the top of a housing of a moving iron Stirling generator proposed by the present invention; Figure 5 A schematic diagram of the internal structure of a housing of a moving iron Stirling generator proposed by the present invention; Figure 6 A schematic diagram of the bottom structure of a rotating disk of a moving iron Stirling generator proposed by the present invention; Figure 7 This is a schematic cross-sectional view of the fuel barrel of a moving iron Stirling generator proposed by the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of a piston cylinder of a moving iron Stirling generator proposed by the present invention; Fig. 9 for Figure 5 A magnified view of the structure in the middle.

[0016] In the figure: 1, bottom plate; 2, Stirling generator body; 3, connecting rod; 4, heating cover; 5, fuel barrel; 6, cover; 7, exhaust pipe; 8, cotton core; 9, fixed plate; 10, through hole; 11, turntable; 12, adjustment hole; 13, heat-conducting tube; 14, bracket; 15, guide rod; 16, first piston; 17, vertical plate; 18, rack; 19, compression spring; 20, gear ring; 21, mounting plate; 22, piston cylinder; 23, connecting rod; 24, second piston; 25, guide tube; 26, first one-way valve; 27, mesh cover; 28, second one-way valve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] See attached Figure 1 -Attached Fig. 9 A moving iron Stirling generator comprises a bottom plate 1, a Stirling generator body 2 is fixedly mounted on the upper surface of the bottom plate 1, and also comprises a connecting rod 3 and a heating cover 4 which are installed on the Stirling generator body 2 and can move linearly. A fuel barrel 5 is fixedly mounted on the outer surface of the bottom plate 1 near the heating cover 4, and a cover shell 6 is fixedly mounted on the top of the fuel barrel 5. One side of the cover shell 6 is an open structure, and an exhaust pipe 7 connected to the inside of the cover shell 6 is fixedly mounted on the top of the cover shell 6. The heating cover 4 is arranged inside the cover shell 6, and the cover shell 6 can be used to keep the heating cover 4 warm to a certain extent, so as to avoid a large amount of heat loss and save heat energy; a plurality of cotton cores 8 are evenly penetrated and fixedly mounted on the top of the fuel barrel 5, a fixed plate 9 is penetrated and fixedly mounted on the bottom of the cover shell 6, and a plurality of through holes 10 corresponding to the cotton cores 8 are evenly penetrated and opened on the upper surface of the fixed plate 9, and the top of the cotton core 8 does not exceed the upper surface of the fixed plate 9, and an adjusting mechanism is installed inside the cover shell 6.

[0020] In this embodiment, the adjustment mechanism includes a turntable 11 rotatably mounted on the upper surface of the fixed plate 9, and a plurality of adjustment holes 12 corresponding to the through holes 10 are evenly penetrated on the upper surface of the turntable 11. A heat-conducting tube 13 is fixedly mounted on the inner wall of the cover 6 near the top thereof, and one end of the heat-conducting tube 13 is a closed structure, and the other end is an open structure. A bracket 14 is fixedly mounted on the inner wall of the open end of the heat-conducting tube 13, and a guide rod 15 is inserted through the outer surface of the bracket 14, and a first piston 16 is fixedly mounted on one end of the guide rod 15. The first piston 16 is fixedly mounted on the inner wall of the cover 6 near the top thereof. 6 is slidably installed with the inner wall of the heat-conducting tube 13, the inner wall of the heat-conducting tube 13 is filled with a thermal expansion solution, a toggle assembly is installed between the guide rod 15 and the turntable 11, the toggle assembly includes a vertical plate 17 fixedly installed on the end of the guide rod 15 away from the first piston 16, a rack 18 is fixedly installed on the bottom end of the vertical plate 17, a gear ring 20 is fixedly installed on the outer periphery of the turntable 11, the rack 18 is meshed with the gear ring 20, a compression spring 19 is sleeved on the outer surface of the guide rod 15, and the compression spring 19 is arranged between the first piston 16 and the bracket 14.

[0021] When the ignited multiple cotton cores 8 heat the heating cover 4, the temperature inside the housing 6 will gradually increase, causing the heat expansion solution in the heat-conducting cylinder 13 installed on the inner wall of the housing 6 to expand due to the heat, thereby pushing the first piston 16 outward, so that the first piston 16 drives the rack 18 to move through the guide rod 15 and the vertical plate 17, so that the rack 18 drives the gear ring 20 meshing with it to rotate, so that the gear ring 20 can drive the turntable 11 to rotate, so that the adjustment hole 12 opened on the turntable 11 is misaligned with the through hole 10, thereby reducing the size of the flame emitted by the cotton core 8, so that the temperature of the heat source (heating end) is maintained within the designed range, and excessive expansion, aging or damage of the heating end caused by excessive temperature is avoided.

[0022] In this embodiment, an air supply mechanism for supplying air to the inside of the cover shell 6 is also installed on the base plate 1, and the air supply mechanism includes a piston cylinder 22 fixedly installed on the upper surface of the base plate 1, and the end of the piston cylinder 22 close to the cover shell 6 is a closed structure, and a mutually conductive conduit 25 is fixedly installed between the end of the closed end of the piston cylinder 22 and the cover shell 6, and a mesh cover 27 is fixedly installed on the inner wall of the cover shell 6 close to the air outlet end of the conduit 25, and an air pumping assembly is installed between the piston cylinder 22 and the connecting rod 3, and the air pumping assembly includes a mounting plate 21 fixedly installed on the outer surface of the connecting rod 3, and a connecting rod 23 is fixedly installed on the outer surface of the mounting plate 21 close to the piston cylinder 22. A second piston 24 is fixedly installed on the end of the connecting rod 23 away from the mounting plate 21, and the second piston 24 is slidably installed on the inner wall of the piston cylinder 22, and a first one-way valve 26 is installed on the conduit 25, and a second one-way valve 28 is installed through the second piston 24, and the conduction directions of the first one-way valve 26 and the second one-way valve 28 are set in opposite directions.

[0023] When the Stirling generator body 2 is operating, the connecting rod 3 will move back and forth in a straight line, so that the connecting rod 3 can drive the second piston 24 to move back and forth inside the piston cylinder 22 through the mounting plate 21 and the connecting rod 23, so that the second piston 24 cooperates with the first one-way valve 26 and the second one-way valve 28 to press air into the piston cylinder 22, and the pressed air is injected into the cover 6 through the conduit 25, so as to ensure that there is always sufficient oxygen inside the cover 6 for fuel combustion and ensure the stability of the heat source.

[0024] In this embodiment, a filling hole is formed through the top of the fuel barrel 5 , and a sealing plug is threadedly connected to the inside of the filling hole. By opening the sealing plug, fuel can be added to the fuel barrel 5 through the filling hole.

[0025] In this embodiment, a sealing door is hinged on the open side of the cover shell 6, and the sealing door is locked with the cover shell 6 by a lock.

[0026] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: when in use, the cotton core 8 is ignited, and the fuel in the fuel barrel 5 is adsorbed onto the cotton core 8 through the siphon effect of the cotton core 8, so that the end of the cotton core 8 is ignited, and the heating cover 4 is heated, so that the Stirling generator body 2 can operate normally; When the ignited multiple cotton cores 8 heat the heating cover 4, the temperature inside the housing 6 will gradually increase, causing the heat expansion solution in the heat-conducting cylinder 13 installed on the inner wall of the housing 6 to expand due to the heat, thereby pushing the first piston 16 outward, so that the first piston 16 drives the rack 18 to move through the guide rod 15 and the vertical plate 17, so that the rack 18 drives the gear ring 20 meshing with it to rotate, so that the gear ring 20 can drive the turntable 11 to rotate, so that the adjustment hole 12 opened on the turntable 11 is misaligned with the through hole 10, thereby reducing the size of the flame emitted by the cotton core 8, so that the temperature of the heat source (heating end) is maintained within the designed range, and excessive expansion, aging or damage of the heating end caused by excessive temperature is avoided; When the Stirling generator body 2 is operating, the connecting rod 3 will move back and forth in a straight line, so that the connecting rod 3 can drive the second piston 24 to move back and forth inside the piston cylinder 22 through the mounting plate 21 and the connecting rod 23, so that the second piston 24 cooperates with the first one-way valve 26 and the second one-way valve 28 to press air into the piston cylinder 22, and the pressed air is injected into the cover 6 through the conduit 25, so as to ensure that there is always sufficient oxygen inside the cover 6 for fuel combustion and ensure the stability of the heat source.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A moving iron Stirling generator, comprising a base plate (1), a Stirling generator body (2) being fixedly mounted on the upper surface of the base plate (1), and further comprising a connecting rod (3) and a heating cover (4) mounted on the Stirling generator body (2) and capable of linear motion, characterized in that: A fuel barrel (5) is fixedly mounted on the outer surface of the bottom plate (1) close to the heating hood (4); a cover shell (6) is fixedly mounted on the top of the fuel barrel (5); one side of the cover shell (6) is an open structure; an exhaust pipe (7) connected to the inside of the cover shell (6) is fixedly mounted on the top of the cover shell; the heating hood (4) is arranged inside the cover shell (6); a plurality of cotton cores (8) are evenly penetrated and fixedly mounted on the top of the fuel barrel (5); a fixing plate (9) is fixedly mounted on the bottom of the cover shell (6); a plurality of through holes (10) corresponding to the cotton cores (8) are evenly penetrated and opened on the upper surface of the fixing plate (9); and an adjustment mechanism is mounted inside the cover shell (6).

2. A moving iron Stirling generator according to claim 1, characterized in that: The adjustment mechanism comprises a turntable (11) rotatably mounted on the upper surface of a fixed disk (9); a plurality of adjustment holes (12) corresponding to the through holes (10) are evenly penetrated through the upper surface of the turntable (11); a heat-conducting tube (13) is fixedly mounted on the inner wall of the cover shell (6) near the top thereof; one end of the heat-conducting tube (13) is a closed structure, and the other end is an open structure; a bracket (14) is fixedly mounted on the inner wall of the open end of the heat-conducting tube (13); a guide rod (15) is inserted through the outer surface of the bracket (14); a first piston (16) is fixedly mounted on one end of the guide rod (15); the first piston (16) is slidably mounted on the inner wall of the heat-conducting tube (13); the inner wall of the heat-conducting tube (13) is filled with a thermal expansion solution; and a toggle assembly is installed between the guide rod (15) and the turntable (11).

3. A moving iron Stirling generator according to claim 2, characterized in that: The toggle assembly comprises a vertical plate (17) fixedly mounted on an end of the guide rod (15) away from the first piston (16), a rack (18) fixedly mounted on the bottom end of the vertical plate (17), a gear ring (20) fixedly mounted on the outer periphery of the rotating disk (11), and the rack (18) meshes with the gear ring (20).

4. A moving iron Stirling generator according to claim 3, characterized in that: The outer surface of the guide rod (15) is sleeved with a compression spring (19), and the compression spring (19) is arranged between the first piston (16) and the bracket (14).

5. The moving iron Stirling generator according to claim 1, characterized in that: The bottom plate (1) is also provided with an air supply mechanism for supplying air to the interior of the housing (6), the air supply mechanism comprising a piston cylinder (22) fixedly mounted on the upper surface of the bottom plate (1), the end of the piston cylinder (22) close to the housing (6) being a closed structure, and a mutually conductive conduit (25) fixedly mounted between the end of the closed end of the piston cylinder (22) and the housing (6), a mesh cover (27) fixedly mounted on the inner wall of the housing (6) close to the air outlet end of the conduit (25), and an air pumping assembly mounted between the piston cylinder (22) and the connecting rod (3).

6. A moving iron Stirling generator according to claim 5, characterized in that: The pumping assembly comprises a mounting plate (21) fixedly mounted on the outer surface of the connecting rod (3); a connecting rod (23) is fixedly mounted on the outer surface of the mounting plate (21) on a side close to the piston cylinder (22); a second piston (24) is fixedly mounted on an end of the connecting rod (23) away from the mounting plate (21); and the second piston (24) is slidably mounted on the inner wall of the piston cylinder (22).

7. A moving iron Stirling generator according to claim 6, characterized in that: A first one-way valve (26) is installed on the conduit (25), and a second one-way valve (28) is installed through the second piston (24). The first one-way valve (26) and the second one-way valve (28) are arranged in opposite directions.

8. The moving iron Stirling generator according to claim 1, characterized in that: A filling hole is formed through the top of the fuel barrel (5), and a sealing plug is threadedly connected to the inside of the filling hole.

9. The moving iron Stirling generator according to claim 1, characterized in that: A sealing door is hinged on the open side of the cover (6).

Images