Generator capable of adjusting heat dissipation capability

Abstract

The utility model provides a generator capable of adjusting heat dissipation capability, and belongs to the technical field of generators, the generator comprises a transformer body and a protective shell arranged outside the transformer body, and further comprises a heat exchange tube arranged in a gap between a high-voltage coil and a low-voltage coil of the transformer body; the refrigerating device is arranged outside the protective shell and is connected with the heat exchange pipe to form a cooling liquid circulation loop; the temperature sensor is arranged in the protective shell; the fire extinguishing device is arranged outside the protective shell and communicates with the protective shell to provide dry powder; and the flame sensor is arranged in the protective shell. The heat dissipation capacity of the transformer is greatly improved through refrigeration and heat dissipation, the working temperature of the transformer is reduced so as to reduce the fire risk, meanwhile, fire can be extinguished in time by means of the fire extinguishing device when the transformer is on fire, and the fire is prevented from further worsening.

Description

Technical Field

[0001] The invention belongs to the technical field of generators, and in particular relates to a generator capable of adjusting heat dissipation capacity. Background Art

[0002] The patent with publication number CN214850773U discloses a heat dissipation structure of a generator and a generator, which uses a scraping device to clean the vents of the wind shield. However, in the actual application process, it is not difficult to remove the debris on the air inlet side manually. In contrast, the effect and significance of setting up a sweeping device alone to improve the heat dissipation are not significant. On the contrary, the heat dissipation capacity of the heat dissipation device itself has a decisive influence on the overall heat dissipation. For example, the speed of the fan. As we all know, some diesel generators with relatively large power are equipped with independent heat dissipation motors to drive the heat dissipation fan to achieve heat dissipation, and its speed can be adjusted according to the temperature. However, for diesel generators that use their own power for air cooling and heat dissipation, since the power of the heat dissipation device is directly derived from the rotation of the generator main shaft or the diesel engine crankshaft, when the power generation power is constant, the speed of the heat dissipation fan is also constant. When the temperature rises or falls, the speed of the heat dissipation fan will not change, and the heat dissipation capacity will not change accordingly, which can easily cause the generator to fail due to high temperature. Summary of the invention

[0003] The object of the present invention is to provide a generator capable of adjusting heat dissipation capacity, using an adaptive transmission capable of adjusting according to temperature to change the rotation speed of a cooling fan, thereby ensuring the heat dissipation capacity.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a generator capable of adjusting heat dissipation capacity, comprising a generator body and a cooling fan arranged on one side of the generator body, and also comprising an adaptive transmission capable of changing the transmission ratio according to temperature; the input shaft of the adaptive transmission is connected to the main shaft of the generator body, and the output shaft thereof is connected to the cooling fan.

[0005] Furthermore, the adaptive transmission comprises:

[0006] a first movable plate, the first movable plate being configured to be movably mounted on the input shaft so as to slide along the shaft and rotate with the shaft;

[0007] a first fixed disk, the first fixed disk being configured to be fixedly mounted on the input shaft to rotate with the shaft;

[0008] a sliding sleeve, the sliding sleeve being configured to be movably mounted on the input shaft to rotate around the shaft and to generate axial movement, the sliding sleeve being in contact with the first movable disk;

[0009] a temperature sensor cover, the temperature sensor cover being configured to be fixedly mounted on the first movable plate;

[0010] A temperature sensor, wherein the temperature sensor is configured such that a first end thereof is connected to the sliding sleeve and a second end thereof is connected to the temperature sensor sleeve, and the first end of the temperature sensor generates a circumferential rotation relative to the second end when the temperature changes;

[0011] a second movable plate, the second movable plate being configured to be movably mounted on the output shaft to slide along the shaft and rotate with the shaft;

[0012] A second fixed disk, the second fixed disk is configured to be fixedly mounted on the output shaft and rotate with the shaft;

[0013] A limiting sleeve, wherein the limiting sleeve is configured to be fixedly mounted on the output shaft to limit the second movable disk;

[0014] A belt is configured to connect the first moving disk, the first fixed disk, the second moving disk, and the second fixed disk to form a transmission connection.

[0015] Furthermore, the input shaft is divided into a power input section, a sleeve installation section, a first movable disk installation section, a first fixed disk installation section and a distal section which are sequentially distributed along the shaft from the generator side;

[0016] The output shaft is divided into a proximal section, a second fixed disk installation section, a second movable disk installation section, a limit sleeve installation section and a power output section which are sequentially distributed along the shaft from the generator side.

[0017] Further, the sliding sleeve and the sliding sleeve mounting section form a threaded connection, the first movable disk and the first movable disk mounting section form a spline connection, and the first fixed disk and the first fixed disk mounting section form a flat key connection;

[0018] The second fixed disk and the second fixed disk mounting section form a flat key connection, and the second movable disk and the second movable disk mounting section form a spline connection.

[0019] Further, the sliding sleeve is provided with at least one adjusting pressure rod for abutting against the first movable disk, and the adjusting pressure rod is configured to be able to adjust the distance between the sliding sleeve and the first movable disk.

[0020] Furthermore, the limiting sleeve is provided with at least one spring sleeve rod, a spring is sleeved on the outer circumference of the threaded sleeve rod, and the spring is configured to be elastically arranged between the second movable disk and the limiting sleeve.

[0021] Furthermore, the temperature sensor is a spiral thermal bimetallic strip.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention adopts an adaptive transmission to achieve the purpose of changing the output speed according to temperature changes, so that the heat dissipation capacity can be adjusted according to actual conditions to avoid the generator from malfunctioning due to excessive temperature.

[0024] 2. The adaptive transmission in the present invention is appropriately improved on the basis of the traditional belt continuously variable transmission, and uses the principle of temperature sensor deformation due to temperature rise to drive the moving disk, thereby achieving the purpose of changing the transmission ratio. The whole process does not require any external electric energy and has the advantage of self-adaptation.

[0025] 3. The distance between the moving plate and the fixed plate in the adaptive transmission of the present invention is adjustable, thereby changing the adjustment range of the actual transmission ratio of the transmission and improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural stereogram of a preferred embodiment of the present invention;

[0027] Figure 2 for Figure 1 A left side view of the structure of the illustrated embodiment;

[0028] Figure 3 for Figure 1 A front view of the structure of the illustrated embodiment;

[0029] Figure 4 for Figure 3 Structural cross-section view in the middle AA direction (low transmission ratio state);

[0030] Figure 5 for Figure 4 The structural cross-sectional view of the illustrated embodiment in a high transmission ratio state.

[0031] The reference numerals in the figure are: 1 is the generator body; 2 is the adaptive transmission; 3 is the cooling fan; 2.1 is the input shaft; 2.2 is the temperature sensor; 2.3 is the sleeve; 2.4 is the first movable disk; 2.5 is the first fixed disk; 2.6 is the output shaft; 2.7 is the second movable disk; 2.8 is the second fixed disk; 2.9 is the spring; 2.10 is the limit sleeve; 2.11 is the adjusting pressure rod; 2.12 is the belt; 2.14 is the temperature sensor sleeve; 2.1a is the power input section; 2.1b is the sleeve installation section; 2.1c is the first movable disk installation section; 2.1d is the first fixed disk installation section; 2.1e is the distal section; 2.6a is the proximal section; 2.6b is the second fixed disk installation section; 2.6c is the second movable disk installation section; 2.6d is the limit sleeve installation section; 2.6e is the power output section. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 5 As shown, this embodiment discloses a generator capable of adjusting heat dissipation capacity, comprising a generator body 1, a cooling fan 3 arranged on one side of the generator body 1, and an adaptive transmission 2 capable of changing the transmission ratio according to temperature. The input shaft 2.1 of the adaptive transmission 2 is connected to the power output end of the main shaft of the generator body 1, and its output shaft 2.6 is connected to the cooling fan 3. The power input end of the main shaft of the generator body 1 is connected to the crankshaft of the diesel engine.

[0034] like Figure 4 As shown, the adaptive transmission 2 is appropriately modified on the basis of the existing belt continuously variable transmission, and has a low cost and a simple structure. It specifically includes a first movable plate 2.4, a first fixed plate 2.5, a sliding sleeve 2.3, a temperature sensor sleeve 2.14, a temperature sensor 2.2, a second movable plate 2.7, a second fixed plate 2.8, a limit sleeve 2.10 and a belt 2.12.

[0035] Obviously, the input shaft 2.1 and the output shaft 2.6 are arranged in a bearing rotation installation manner, and the adaptive transmission 2 can be installed and fixed to the input shaft 2.1 and the output shaft 2.6 in the form of a transmission case, and the remaining components can be accommodated. It can also share a shell with the engine body 1 to form an integrated structure, which is a conventional method, so it will not be repeated. In addition, it can also be known that for the input shaft 2.1, it directly receives the power of the engine body 1, so the input shaft 2.1 can be connected to the main shaft of the engine body 1 by a coupling 4, or it can be designed as a coaxial whole with the main shaft of the engine body 1, which is a conventional method, so it will not be repeated. For the output shaft 2.6, it can be connected to the fan shaft 3.2 of the cooling fan 3, or it can be designed as a coaxial whole with the fan shaft 3.2, which is a conventional method, so it will not be repeated.

[0036] Furthermore, the input shaft 2.1 is divided into a power input section 2.1a, a sleeve installation section 2.1b, a first movable disk installation section 2.1c, a first fixed disk installation section 2.1d and a distal section 2.1e which are sequentially distributed along the shaft from the generator side. The output shaft 2.6 is parallel to the input shaft 2.1, and its shaft body is divided into a proximal section 2.6a, a second fixed disk installation section 2.6b, a second movable disk installation section 2.6c, a limit sleeve installation section 2.6d and a power output section 2.6e which are sequentially distributed along the shaft from the generator side. In the present invention, the distal end refers to the end close to the engine body 1, and the proximal end refers to the end away from the engine body 1.

[0037] The first movable plate 2.4 is configured to be movably mounted on the first movable plate mounting section 2.1c, and its mounting method is a spline connection, so that it can achieve the purpose of sliding along the axis and rotating with the axis.

[0038] The first fixed disk 2.5 is configured to be fixedly mounted on the first fixed disk mounting section 2.1d, and its mounting method is a flat key connection, so that it can achieve the purpose of rotating with the shaft.

[0039] The sleeve 2.3 is configured to be movably mounted on the sleeve mounting section 2.1b, and its mounting method is a threaded connection, so that it can achieve the purpose of rotating around the axis and generating axial movement at the same time. The function of the sleeve 2.3 is to drive the first movable disk 2.4 to move, thereby changing the distance between the first movable disk 2.4 and the first fixed disk 2.5. Furthermore, the sleeve 2.3 is provided with six adjusting rods 2.11 for abutting the first movable disk 2.4. The adjusting rods 2.11 are evenly distributed around the circumference. The adjusting rods 2.11 can be screws and are configured to be able to adjust the distance between the sleeve 2.3 and the first movable disk 2.4. By rotating the adjusting rod 2.11, its telescopic length on the sleeve 2.3 can be changed, thereby changing the distance between the sleeve 2.3 and the first movable disk 2.4, and finally achieving the purpose of changing the transmission ratio range. It can be known that the sleeve 2.3 has a certain range of movement,

[0040] The temperature sensor cover 2.14 is configured to be fixedly installed on the first movable plate 2.4 by screws, and its function is to fix one end of the temperature sensor 2.2, and also to provide protection for the temperature sensor. The end of the temperature sensor cover 2.14 is an open structure, the purpose of which is to ensure communication with the external environment, so that the temperature sensor 2.2 can sense temperature changes more accurately.

[0041] The temperature sensor 2.2 is configured to be installed in the space formed between the sliding sleeve 2.3 and the temperature sensor sleeve 2.14, with its first end connected to the sliding sleeve 2.3 and its second end connected to the temperature sensor sleeve 2.14. When the temperature changes, the first end of the temperature sensor 2.2 rotates relative to the second end. The temperature sensor 2.2 is a spiral thermal bimetal strip, which can generate a rotational force when heated, so that it drives the sliding sleeve 2.3 to rotate.

[0042] The second movable plate 2.7 is configured to be movably mounted on the second movable plate mounting section 2.6c, and its mounting method is a spline connection, so as to achieve the purpose of sliding along the shaft and rotating with the shaft.

[0043] The second fixed disk 2.8 is configured to be fixedly mounted on the second fixed disk mounting section 2.6b, and its mounting method is a flat key connection to achieve the purpose of rotating with the shaft.

[0044] The limiting sleeve 2.10 is configured to be fixedly mounted on the limiting sleeve mounting section 2.6d, and its mounting method is a flat key connection, so as to achieve the purpose of limiting the second movable disk 2.7. Furthermore, the limiting sleeve 2.10 is provided with four spring sleeve rods 2.14 evenly distributed around the circumference, and the outer circumference of the threaded sleeve rod 2.14 is sleeved with a spring 2.9, which is configured to be elastically arranged between the second movable disk 2.7 and the limiting sleeve 2.10, thereby providing pressure for the second movable disk 2.7, so that it can form a matching connection with the belt 2.6.

[0045] The belt 2.12 is configured to connect the first movable disk 2.4, the first fixed disk 2.5, the second movable disk 2.7 and the second fixed disk 2.8 to form a transmission connection. Obviously, the disk surfaces of the first movable disk 2.4, the first fixed disk 2.5, the second movable disk 2.7 and the second fixed disk 2.8 are all conical surfaces, thereby forming a "V"-shaped structure to achieve adaptive connection with the belt 2.12.

[0046] like Figure 4 As shown, when the engine body 1 is working, if the temperature is not high at this time, the temperature sensor 2.2 remains in its original state, and the first movable plate 2.4 is far away from the first fixed plate 2.5. The connection radius of the belt 2.12 on the driving wheel side is R1, and the connection radius on the driven wheel side is R2, and the transmission ratio n of the adaptive transmission 2 is R1 / R2. When the temperature rises, the temperature sensor 2.2 expands and rotates, driving the sleeve 2.3 to move axially to drive the first movable disk 2.4 to approach the first fixed disk 2.5, and because the length of the belt 2.12 is constant, the second movable disk 2.7 moves away from the second fixed disk 2.8. At this time, the connection radius of the belt 2.12 on the driving wheel side is R1', and the connection radius on the driven wheel side is R2'. The transmission ratio n' of the adaptive transmission 2 is R1' / R2'. Since R1'>R1, R2>R2', n'>n, when the speed of the input shaft 2.1 remains unchanged, the speed of the output shaft 2.6 increases, so that the blades 3.1 of the cooling fan 3 rotate at a higher speed, improving the heat dissipation capacity under the temperature rise state. When the temperature drops, the adaptive transmission 2 will gradually restore the transmission ratio in the initial state.

[0047] It should be noted that, for the automatic adjustment of the speed, there are methods in the prior art that use other types of temperature sensors and independent motors to achieve the purpose of variable temperature speed regulation, but this method not only requires an independent motor, but also requires electrical components such as a temperature measurement circuit board, a speed regulator, and a frequency converter, which are expensive and require additional wiring. The present invention is not only low in cost but also can achieve automatic temperature control and speed regulation without any electrical components.

[0048] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation of the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0049] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A generator capable of adjusting heat dissipation capacity, comprising a generator body (1) and a heat dissipation fan (3) arranged on one side of the generator body (1), characterized in that: It also includes an adaptive transmission (2) capable of changing the transmission ratio according to temperature; the input shaft (2.1) of the adaptive transmission (2) is connected to the main shaft of the generator body (1), and the output shaft (2.6) is connected to the cooling fan (3).

2. A generator capable of adjusting heat dissipation capacity according to claim 1, characterized in that: The adaptive transmission (2) comprises: A first movable disk (2.4), the first movable disk (2.4) being configured to be movably mounted on the input shaft (2.1) so as to slide along the shaft and rotate with the shaft; A first fixed disk (2.5), the first fixed disk (2.5) being configured to be fixedly mounted on the input shaft (2.1) so as to rotate with the shaft; a sliding sleeve (2.3), the sliding sleeve (2.3) being configured to be movably mounted on the input shaft (2.1) so as to rotate around the shaft and generate axial movement at the same time, the sliding sleeve (2.3) being in abutment with the first movable disk (2.4); a temperature sensor sleeve (2.14), the temperature sensor sleeve (2.14) being configured to be fixedly mounted on the first movable plate (2.4); A temperature sensor (2.2), the temperature sensor (2.2) being configured such that a first end thereof is connected to the sliding sleeve (2.3) and a second end thereof is connected to the temperature sensor sleeve (2.14), and the first end of the temperature sensor (2.2) generates circumferential rotation relative to the second end when the temperature changes; A second movable disk (2.7), the second movable disk (2.7) being configured to be movably mounted on the output shaft (2.6) so as to slide along the shaft and rotate with the shaft; a second fixed disk (2.8), the second fixed disk (2.8) being configured to be fixedly mounted on the output shaft (2.6) and rotate with the shaft; a limiting sleeve (2.10), the limiting sleeve (2.10) being configured to be fixedly mounted on the output shaft (2.6) to limit the second movable disk (2.7); A belt (2.12) is configured to connect the first moving disk (2.4), the first fixed disk (2.5), the second moving disk (2.7) and the second fixed disk (2.8) to form a transmission connection.

3. A generator capable of adjusting heat dissipation capacity according to claim 2, characterized in that: The input shaft (2.1) is divided into a power input section (2.1a), a sleeve installation section (2.1b), a first movable disk installation section (2.1c), a first fixed disk installation section (2.1d) and a distal section (2.1e) in sequence along the shaft from the generator side; the output shaft (2.6) is divided into a proximal section (2.6a), a second fixed disk installation section (2.6b), a second movable disk installation section (2.6c), a limit sleeve installation section (2.6d) and a power output section (2.6e) in sequence along the shaft from the generator side.

4. A generator capable of adjusting heat dissipation capacity according to claim 3, characterized in that: The sliding sleeve (2.3) and the sliding sleeve mounting section (2.1b) form a threaded connection, the first movable disk (2.4) and the first movable disk mounting section (2.1c) form a spline connection, and the first fixed disk (2.5) and the first fixed disk mounting section (2.1d) form a flat key connection; The second fixed disk (2.8) and the second fixed disk mounting section (2.6b) form a flat key connection, and the second movable disk (2.7) and the second movable disk mounting section (2.6c) form a spline connection.

5. The generator capable of adjusting heat dissipation capacity according to claim 2, characterized in that: The sliding sleeve (2.3) is provided with at least one adjusting pressure rod (2.11) for abutting against the first movable disk (2.4); the adjusting pressure rod (2.11) is configured to be able to adjust the distance between the sliding sleeve (2.3) and the first movable disk (2.4).

6. A generator capable of adjusting heat dissipation capacity according to claim 2, characterized in that: The limiting sleeve (2.10) is provided with at least one threaded sleeve rod, a spring (2.9) is sleeved on the outer circumference of the threaded sleeve rod, and the spring (2.9) is configured to be elastically arranged between the second moving disk (2.7) and the limiting sleeve (2.10).

7. A generator capable of adjusting heat dissipation capacity according to claim 2, characterized in that: The temperature sensor (2.2) is a spiral thermal bimetallic strip.

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