Efficient wind generating set variable pitch battery heating device

Abstract

The utility model relates to the technical field of variable pitch battery heating, in particular to an efficient wind generating set variable pitch battery heating device which comprises a heating shell, a sliding groove is formed in the inner side of the heating shell, an installation partition plate is connected to the inner side of the sliding groove in a sliding mode, and a first spring is arranged on the inner side of the sliding groove. According to the variable-pitch battery heating device, through the arrangement of the structure composed of the top plate and the like, when a variable-pitch battery is placed in the heating shell, the variable-pitch battery can extrude the top plate, a switch is pressed to send a signal to a controller through a signal receiver, and the controller is started to heat the variable-pitch battery; the controller controls the corresponding top heating plate and the like to heat the variable-pitch battery, so that the problems that the reaction rate of an active substance on the surface of an electrode at low temperature is slowed down, the substance concentration in the active substance is reduced, and the balance and discharge capacity of the variable-pitch battery are reduced are solved; and the problem that the battery cannot be discharged due to electrolyte freezing under the extremely low temperature condition can even occur.

Description

Technical Field

[0001] The utility model relates to the technical field of variable pitch battery heating, in particular to a high-efficiency variable pitch battery heating device for a wind turbine generator set. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. The variable pitch battery pack for a wind turbine is an important component of a wind turbine. It is the backup power source for the variable pitch system. In the event of a high-level fault in the wind turbine or a power outage in the power grid, the battery is used to implement an emergency pitch-feeding function. The battery drives the variable pitch motor to feather the blades to a safe position, ensuring the safety and reliability of the entire machine.

[0003] The working principle of the variable pitch battery is essentially the redox reaction between the internal positive and negative electrodes and the electrolyte. At low temperatures, the reaction rate of the active substances on the electrode surface slows down and the substance concentration inside the active substances decreases, which will cause the variable pitch battery to balance and reduce the discharge capacity. In extreme low temperature conditions, the electrolyte may even freeze, resulting in the battery being unable to discharge, which greatly affects the performance of the variable pitch battery. Therefore, it is necessary to preheat the variable pitch battery before the variable pitch battery is used. Therefore, an efficient wind turbine variable pitch battery heating device is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an efficient wind turbine pitch battery heating device to solve the problem that the reaction rate of active substances on the electrode surface slows down at low temperatures and the concentration of substances inside the active substances decreases, which will cause the pitch battery to be unbalanced and the discharge capacity to be reduced. In extreme low temperature conditions, the electrolyte may even freeze, causing the battery to be unable to discharge.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A high-efficiency variable pitch battery heating device for a wind turbine generator system comprises a heating shell, a slide groove is provided on the inner side of the heating shell, a mounting partition is slidably connected to the inner side of the slide groove, a first spring is provided on the inner side of the slide groove, a first heating side plate is installed on the inner side of the mounting partition, a second spring is fixedly connected to the inner side of the heating shell, a top plate is fixedly connected to the end of the second spring away from the heating shell, a top heating plate is installed on the inner side of the top plate, a push switch is provided on the inner side of the heating shell, a bottom plate is fixedly connected to the inner side of the heating shell, a bottom heating plate is installed on the inner side of the bottom plate, a second heating side plate is installed on the inner side of the heating shell, a controller is installed on the outer side of the heating shell, and a signal receiver is installed on the outer side of the heating shell.

[0007] Preferably, the first spring is symmetrically arranged on the outside of the mounting partition, and the two ends of the first spring are fixedly connected to the inner wall of the slide groove and the mounting partition respectively.

[0008] Preferably, there are four top plates in total, and the push switches are arranged on the top of the top plates, and the push switches are symmetrically arranged on both sides of the second spring.

[0009] Preferably, there are two second heating side plates, which are symmetrically arranged, and there are three mounting partitions.

[0010] Preferably, the top plate corresponds to the bottom plate one-to-one, and the signal receiver corresponds to the controller one-to-one.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the structure composed of the top plate, the first spring, the push switch, the signal receiver and the top heating plate, when the variable pitch battery is placed in the heating shell for heating, the variable pitch battery will squeeze the top plate, and the top plate will squeeze the first spring. When the variable pitch battery is placed, the top plate will squeeze the push switch, so that the push switch is pressed. The push switch sends a signal to the controller through the signal receiver. The controller controls the corresponding top heating plate, the bottom heating plate and the second heating side plate to heat the variable pitch battery, thereby realizing the ability of the efficient wind turbine variable pitch battery heating device to efficiently heat the variable pitch battery, and solving the problem that the reaction rate of active substances on the electrode surface slows down at low temperatures and the concentration of substances inside the active substances decreases, which will cause the variable pitch battery to balance and reduce the discharge capacity. In extreme low temperature conditions, the electrolyte may even freeze, causing the battery to be unable to discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of the structure at point A.

[0015] In the figure: 1. Heating shell; 2. Slide groove; 3. Mounting partition; 4. First spring; 5. First heating side plate; 6. Second spring; 7. Top plate; 8. Top heating plate; 9. Push switch; 10. Bottom plate; 11. Bottom heating plate; 12. Second heating side plate; 13. Controller; 14. Signal receiver. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0019] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0020] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0022] See also Figure 1-2 , the utility model provides a technical solution:

[0023] A highly efficient variable pitch battery heating device for a wind turbine generator system comprises a heating shell 1, a slide groove 2 is provided on the inner side of the heating shell 1, a mounting baffle 3 is slidably connected to the inner side of the slide groove 2, a first spring 4 is provided on the inner side of the slide groove 2, a first heating side plate 5 is installed on the inner side of the mounting baffle 3, a second spring 6 is fixedly connected to the inner side of the heating shell 1, a top plate 7 is fixedly connected to the end of the second spring 6 away from the heating shell 1, a top heating plate 8 is installed on the inner side of the top plate 7, a push switch 9 is provided on the inner side of the heating shell 1, a bottom plate 10 is fixedly connected to the inner side of the heating shell 1, a bottom heating plate 11 is installed on the inner side of the bottom plate 10, a second heating side plate 12 is installed on the inner side of the heating shell 1, a controller 13 is installed on the outer side of the heating shell 1, and a signal receiver 14 is installed on the outer side of the heating shell 1.

[0024] The first spring 4 is symmetrically arranged on the outside of the mounting partition 3, and the two ends of the first spring 4 are fixedly connected to the inner wall of the slide groove 2 and the mounting partition 3 respectively. This arrangement makes the first spring 4 squeezed or stretched when the mounting partition 3 slides, which is convenient for installing the variable pitch battery in the heating shell 1; there are four top plates 7, and the push switch 9 is arranged on the top of the top plate 7. The push switch 9 is symmetrically arranged on both sides of the second spring 6. This arrangement makes the variable pitch battery squeeze the top plate 7 when it acts on the top plate 7 containing the top heating plate 8, so that the top plate 7 squeezes the second spring 6. The second spring 6 will be compressed at this time, and when the top plate 7 acts on the push switch 9, the push switch 9 is turned on. When the push switch 9 is turned on The signal will be transmitted to the corresponding controller 13 through the corresponding signal receiver 14, so that the variable pitch battery can be heated efficiently, and multiple installed partitions 3 make it possible to heat multiple variable pitch batteries at the same time; there are two second heating side plates 12, and the second heating side plates 12 are symmetrically arranged, and there are three installed partitions 3. This arrangement makes it possible to heat multiple variable pitch batteries at the same time; the top plate 7 corresponds to the bottom plate 10 one by one, and the signal receiver 14 corresponds to the controller 13 one by one. This arrangement enables the signal receiver 14 to transmit the signal to the controller 13, and the controller 13 controls the use of the top heating plate 8, the bottom heating plate 11, the second heating side plate 12 and the first heating side plate 5.

[0025] Working process: All electrical appliances in the utility model are provided with an external power supply. The pitch battery to be heated is placed in the heating shell 1, and the pitch battery is placed between the top plate 7 and the bottom plate 10. In the process of placing the pitch battery, the pitch battery will act on the mounting partition 3 with the first heating side plate 5 installed on the inner side, so that the mounting partition 3 slides on the inner side of the slide groove 2. At this time, the first spring 4 is squeezed or stretched. The sliding of the mounting partition 3 makes it easier to place the pitch battery in the heating shell 1. In the process of the pitch battery acting on the top plate 7 containing the top heating plate 8, the top plate 7 is squeezed, so that the top plate 7 squeezes the second spring 6, and the second spring 6 is compressed at this time. When the top plate 7 acts on the push switch 9, the push switch 9 is turned on. When the push switch 9 is turned on, the signal will be transmitted to the corresponding controller 13 through the corresponding signal receiver 14. When the variable pitch battery is placed on both sides, the controller 13 controls the corresponding top heating plate 8, the bottom heating plate 11, the second heating side plate 12 and the first heating side plate 5 to turn on. When the variable pitch battery is placed in the middle, the controller 13 controls the corresponding top heating plate 8, the bottom heating plate 11 and the second heating side plate 12 to turn on. When the temperature reaches a certain level, the controller 13 will stop starting, so that the variable pitch battery will stop being heated, thereby avoiding the occurrence of overheating of the variable pitch battery to a certain extent.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An efficient wind turbine variable pitch battery heating device, comprising a heating housing (1), characterized in that: A slide groove (2) is provided on the inner side of the heating shell (1), and a mounting baffle (3) is slidably connected to the inner side of the slide groove (2). A first spring (4) is provided on the inner side of the slide groove (2), and a first heating side plate (5) is installed on the inner side of the mounting baffle (3). A second spring (6) is fixedly connected to the inner side of the heating shell (1), and a top plate (7) is fixedly connected to the end of the second spring (6) away from the heating shell (1), and a top heating plate (8) is installed on the inner side of the top plate (7). A push switch (9) is provided on the inner side of the heating shell (1), a bottom plate (10) is fixedly connected to the inner side of the heating shell (1), and a bottom heating plate (11) is installed on the inner side of the bottom plate (10). A second heating side plate (12) is installed on the inner side of the heating shell (1), a controller (13) is installed on the outer side of the heating shell (1), and a signal receiver (14) is installed on the outer side of the heating shell (1).

2. According to claim 1, a high-efficiency wind turbine variable pitch battery heating device is characterized in that: The first spring (4) is symmetrically arranged on the outside of the mounting partition (3), and the two ends of the first spring (4) are respectively fixedly connected to the inner wall of the slide groove (2) and the mounting partition (3).

3. The efficient wind turbine variable pitch battery heating device according to claim 1 is characterized in that: There are four top plates (7) in total. The push switches (9) are arranged on the top of the top plates (7). The push switches (9) are symmetrically arranged on both sides of the second spring (6).

4. The efficient wind turbine variable pitch battery heating device according to claim 1 is characterized in that: There are two second heating side plates (12) in total, and the second heating side plates (12) are symmetrically arranged. There are three mounting partitions (3) in total.

5. The efficient wind turbine variable pitch battery heating device according to claim 1 is characterized in that: The top plate (7) corresponds to the bottom plate (10) in one-to-one correspondence, and the signal receiver (14) corresponds to the controller (13) in one-to-one correspondence.

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