Stable low-noise transformer iron core

Abstract

According to the stable low-noise type transformer iron core provided by the embodiment of the invention, the first side surfaces of the plurality of silicon steel sheets of the iron core body are fixed by using the fasteners, so that primary fixation of the iron core body is realized. And the second side surfaces of the plurality of silicon steel sheets of the iron core body are fixed by using a clamping and fixing block, so that secondary fixation of the iron core body is realized. And moreover, the clamping and fixing block is in contact with the plurality of silicon steel sheets through the step grooves, so that the contact area between the clamping and fixing block and the silicon steel sheets can be increased, the clamping and fixing block and the silicon steel sheets are attached more adaptively, and the clamping and fixing strength is improved. By the adoption of the structural design, abrasion between adjacent silicon steel sheets caused by vibration generated in the operation process of the transformer iron core can be greatly reduced, meanwhile, noise generated by abrasion can be effectively reduced, and the service life of the transformer iron core is prolonged.

Description

Technical Field

[0001] This application relates to the field of transformer technology, and more specifically, to a stable, low-noise transformer core. Background Technology

[0002] The transformer core is used to transmit magnetic flux. When the transformer is connected to a power source, the output current creates a magnetic field. This magnetic field needs to be transmitted through the transformer core, and then electromagnetic induction occurs in the transformer windings, thus achieving the electrical conversion of the transformer. Therefore, the core plays a crucial role in the transformer.

[0003] In related technologies, transformer cores typically consist of a core body, fasteners, and insulation components. The core body is made of multiple hot-rolled or cold-rolled silicon steel sheets with a high silicon content, stacked together. Fasteners are used to fix the multiple silicon steel sheets in place, and the bottom of the core body is installed to a predetermined position using insulating pads such as feet.

[0004] Traditionally, multiple silicon steel sheets are bundled together with straps and secured with fasteners. However, during actual use, transformer cores vibrate due to electromagnetic forces, magnetic fields, and mechanical vibrations. Vibration in the transformer core causes varying degrees of wear between the stacked silicon steel sheets, generates noise, and ultimately affects the lifespan of the transformer core. Utility Model Content

[0005] In view of this, the present application provides a stable and low-noise transformer core to solve the problem that vibrations generated by the transformer core during operation can cause wear between adjacent silicon steel sheets, thereby affecting the service life of the transformer core.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A stable, low-noise transformer core, comprising:

[0008] The iron core body is a plurality of iron core bodies, each of which is composed of multiple silicon steel sheets stacked together.

[0009] Fasteners, there are two fasteners, the fasteners are set at the upper and lower ends of the iron core body, the fasteners are set on the first side of the iron core body to fix multiple silicon steel sheets, and the bottom end of the fasteners is provided with a pad.

[0010] A clamping and fixing block is provided, and there are multiple clamping and fixing blocks. The clamping and fixing blocks are disposed on the second side of the iron core body. The clamping and fixing blocks are located between the upper and lower fasteners and respectively abut against the upper and lower surfaces of the fasteners. The clamping and fixing blocks are provided with stepped grooves on the surfaces of the clamping and fixing blocks that contact the fasteners. The clamping and fixing blocks abut against multiple silicon steel sheets through the stepped grooves. The clamping and fixing blocks are used to fix the multiple silicon steel sheets in a secondary manner.

[0011] A pull rod passes through the fastener and the clamping block. Bolts are fixedly installed at both the top and bottom of the pull rod. The pull rod is used to fix the iron core body, the fastener and the clamping block.

[0012] In some possible implementations, the pull rod and the clamping block are fixedly connected.

[0013] In some possible implementations, a double-sided fixing block is also provided between adjacent core bodies, with both walls of the double-sided fixing block connected to the core body, and the stepped groove is provided on each wall of the double-sided fixing block.

[0014] In some possible implementations, both the clamping block and the double-sided fixing block are made of thermally conductive metal.

[0015] In some possible implementations, both the clamping and fixing blocks and the double-sided fixing blocks are hollow structural designs.

[0016] In some possible implementations, a fan is provided on one wall of both the clamping and fixing block and the double-sided fixing block for blowing air into it, and a ventilation hole is provided on the other wall of both the clamping and fixing block and the double-sided fixing block, the ventilation hole being located on the opposite side of the fan.

[0017] The stable, low-noise transformer core provided in this application has at least the following beneficial effects:

[0018] In the stable, low-noise transformer core provided in this application embodiment, the first-level fixation of the core body is achieved by using fasteners to fix the first side of multiple silicon steel sheets of the core body. Then, a clamping and fixing block is used to fix the second side of the multiple silicon steel sheets of the core body, achieving a second-level fixation of the core body. Furthermore, the clamping and fixing block and the multiple silicon steel sheets contact each other through stepped grooves, which increases the contact area between them, making them fit more closely and thus improving the clamping and fixing strength. This structural design can significantly reduce the wear between adjacent silicon steel sheets caused by vibrations generated during transformer core operation, and also effectively reduce noise caused by wear, thereby improving the service life of the transformer core. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a stable, low-noise transformer core provided in an embodiment of this application;

[0021] Figure 2 An exploded view of the core of a stable, low-noise transformer provided in an embodiment of this application.

[0022] In the picture:

[0023] 100. Iron core body; 110. Silicon steel sheet; 111. First side; 112. Second side; 200. Fastener; 300. Pad; 400. Clamping and fixing block; 410. Ventilation hole; 500. Step groove; 600. Tie rod; 700. Bolt; 800. Double-sided fixing block; 900. Fan. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-2As shown in the embodiment of this application, the stable low-noise transformer core includes a core body 100, fasteners 200, clamping and fixing blocks 400, and a pull rod 600. The core body 100 is composed of multiple stacked silicon steel sheets 110, and there are multiple core bodies 100. The core body 100 has two first side surfaces 111 and two second side surfaces 112. The first side surfaces 111 of the core body 100 are fixed together by the fasteners 200. Specifically, the fasteners 200 are located at the upper and lower ends of the core body 100, and the fasteners 200 can stack multiple silicon steel sheets 110 together to form the core body 100. Furthermore, the fastener 200 at the lower end is also provided with an insulating pad 300, which serves both insulating and elevation functions.

[0026] The two second sides 112 of the iron core body 100 have a stepped structure. The stepped structure makes the overall shape of the iron core body 100 closer to a circle. This not only improves space utilization but also maximizes the cross-sectional area of ​​the iron core body 100, thereby reducing the amount of silicon steel sheets 110 used and lowering costs.

[0027] In this embodiment, clamping and fixing blocks 400 are provided at the two second side surfaces 112 of the iron core body 100. Specifically, the clamping and fixing blocks 400 are located at the upper and lower ends of the iron core body 100, and abut against the stepped structure of the second side surface 112 of the iron core body 100. The wall surface of the clamping and fixing blocks 400 is provided with stepped grooves 500 adapted to the stepped structure. The clamping and fixing blocks 400 can fix the iron core body 100 a second time on the second side surface 112 through the stepped grooves 500, so as to improve the connection stability between adjacent silicon steel sheets 110.

[0028] Furthermore, the clamping and fixing block 400 is located between the fasteners 200 and contacts the adjacent fasteners 200. The fastener 200 is also provided with a pull rod 600 in the vertical direction, which passes through the fastener 200 and the clamping and fixing block 400 and fixes them. Both ends of the pull rod 600 are provided with fastening bolts 700. Specifically, the pull rod 600 and the clamping and fixing block 400 can be an interference fit.

[0029] In the stable, low-noise transformer core provided in this embodiment, the first side 111 of multiple silicon steel sheets 110 of the core body 100 is fixed using fasteners 200 to achieve primary fixation of the core body 100. Then, the second side 112 of the multiple silicon steel sheets 110 of the core body 100 is fixed using clamping and fixing blocks 400 to achieve secondary fixation of the core body 100. Furthermore, the clamping and fixing blocks 400 and the multiple silicon steel sheets 110 are in contact through stepped grooves 500, which increases the contact area between them, making them fit more closely and thus improving the clamping and fixing strength. This structural design can significantly reduce the wear between adjacent silicon steel sheets 110 caused by vibrations generated during transformer core operation, and can also effectively reduce noise caused by wear, thereby improving the service life of the transformer core.

[0030] In some embodiments, a double-sided fixing block 800 is also provided between adjacent iron core bodies 100. Specifically, both walls of the double-sided fixing block 800 are connected to the second side surface 112 of the iron core body 100, and both walls of the double-sided fixing block 800 are provided with stepped grooves 500 that abut against the second side surface 112 of the iron core body 100.

[0031] Preferably, the clamping and fixing block 400 and the double-sided fixing block 800 can be hollow structures, both made of metal materials with good thermal conductivity. This allows the heat generated by the iron core body 100 during operation to be dissipated in a timely manner, ensuring the normal operation of the iron core body 100.

[0032] Preferably, one wall of the clamping and fixing block 400 and the double-sided fixing block 800 is provided with multiple fans 900, which can blow air into the interior. The other wall of the clamping and fixing block 400 and the double-sided fixing block 800 is also provided with ventilation holes 410, which are located on the opposite side of the fans 900. When the fans 900 are started, they can exchange heat with the outside environment by blowing air, thereby improving the heat dissipation effect of the iron core body 100.

[0033] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0034] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0035] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0036] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0037] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0038] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).

[0039] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A stable, low-noise transformer core, characterized in that, include: The iron core body (100) has multiple iron core bodies (100), and each iron core body (100) is composed of multiple silicon steel sheets (110) stacked together; Fasteners (200), there are two fasteners (200), the fasteners (200) are disposed at the upper and lower ends of the iron core body (100), the fasteners (200) are disposed on the first side (111) of the iron core body (100) to fix multiple silicon steel sheets (110), and a pad (300) is disposed at the bottom end of the fasteners (200). A clamping and fixing block (400) is provided, and there are multiple clamping and fixing blocks (400). The clamping and fixing blocks (400) are disposed on the second side (112) of the iron core body (100). The clamping and fixing blocks (400) are located between the upper and lower fasteners (200), and the clamping and fixing blocks (400) abut against the upper surface and the lower surface of the fasteners (200) respectively. The clamping and fixing blocks (400) are provided with stepped grooves (500) on the surface of the clamping and fixing blocks (400) that contact the fasteners (200). The clamping and fixing blocks (400) abut against multiple silicon steel sheets (110) through the stepped grooves (500). The clamping and fixing blocks (400) are used to fix the multiple silicon steel sheets (110) in a secondary manner. A pull rod (600) passes through the fastener (200) and the clamping block (400). Bolts (700) are fixedly provided at both the top and bottom of the pull rod (600). The pull rod (600) is used to fix the iron core body (100), the fastener (200) and the clamping block (400).

2. The stable, low-noise transformer core according to claim 1, characterized in that: The pull rod (600) and the clamping block (400) are fixedly connected.

3. The stable, low-noise transformer core according to claim 1, characterized in that: A double-sided fixing block (800) is also provided between adjacent iron core bodies (100). Both walls of the double-sided fixing block (800) are connected to the iron core body (100), and the stepped groove (500) is provided on the walls of the double-sided fixing block (800).

4. The stable, low-noise transformer core according to claim 3, characterized in that: Both the clamping and fixing block (400) and the double-sided fixing block (800) are made of thermally conductive metal.

5. The stable, low-noise transformer core according to claim 4, characterized in that: Both the clamping and fixing block (400) and the double-sided fixing block (800) are hollow structural designs.

6. The stable, low-noise transformer core according to claim 5, characterized in that: A fan (900) is provided on one wall of both the clamping and fixing block (400) and the double-sided fixing block (800), and the fan (900) is used to blow air into its interior. A ventilation hole (410) is provided on the other wall of both the clamping and fixing block (400) and the double-sided fixing block (800), and the ventilation hole (410) is located on the opposite side of the fan (900).

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