Transformer

Abstract

The transformer comprises an iron core and a fixing assembly, the iron core is provided with a coil, a connecting frame is arranged at the upper end of the iron core, and pressing blocks are arranged at the upper end and the lower end of the coil. The fixing assembly comprises an upper clamping piece, a lower clamping piece and a plurality of connecting pieces, the upper clamping piece is arranged above the iron core and connected to the connecting frame, the lower clamping piece is arranged below the iron core, the connecting pieces are circumferentially arranged between the upper clamping piece and the lower clamping piece and are matched to connect the upper clamping piece and the lower clamping piece, the upper clamping piece is provided with an adjustable pressing nail, and the lower clamping piece is provided with an adjustable pressing nail. And the pressing block at the upper end of the coil can be tightly pressed by pressing the adjusting pressing nail, so that the coil is fixed. The whole iron core is fixed by the upper clamping piece, the lower clamping piece and the connecting pieces in a matched mode, the whole iron core is in a suspended state, and the coil does not need to bear the weight of the iron core. The pressing blocks are arranged at the upper end and the lower end of the coil, and the pressing nails are used for pressing the pressing blocks at the upper end of the coil, so that the coil is fixed, and noise generated during operation can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer equipment manufacturing, in particular to a transformer. Background Art

[0002] With the development of power grids, energy conservation requirements are becoming increasingly stringent. Amorphous alloy three-dimensional wound core transformers are widely used due to their advantages such as energy conservation and environmental protection. However, in related technologies, compared with silicon steel core products, amorphous alloy three-dimensional wound cores vibrate during operation due to unstable fixation, which produces greater noise. The currently used suspension method is to set pads at the upper and lower ends of the core so that the pads abut against the coils, and the core is supported by the coils to achieve the purpose of suspension. However, this suspension method has the following disadvantages:

[0003] (1) The part where the coil and the pressing block abut against each other needs to bear the weight of the core, which may cause local damage to the coil;

[0004] (2) Using the coil to support the iron core will cause the coil to tilt inward, which will have a negative impact on the transformer's ability to withstand short circuits;

[0005] (3) The pressing block is located between the coil and the core and is fixed only by bonding and pressing. When the pressing block bears the weight of the core, there is a risk of it falling during transportation;

[0006] Therefore, it is necessary to improve the current fixing method to improve the reliability of the product. Utility Model Content

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a transformer, wherein the core is fixed by an upper clamp, a lower clamp and a plurality of connectors, the fixing method is stable, and the weight of the core is transferred to the upper clamp and supported by the connector and the lower clamp, the core is in a suspended state, and the coil does not need to bear the weight of the core; by arranging pressure blocks at the upper and lower ends of the coil, and using the pressure pins of the upper clamp to press the pressure block at the upper end of the coil, while the pressure pins of the upper clamp press the pressure block, the pressure block generates a downward pressing force on the coil, so that the lower end of the coil fits with the pressure block located at the lower end of the coil, thereby further fixing the coil, effectively reducing the noise generated during operation, and reducing the impact on surrounding residents.

[0008] According to the transformer provided by the embodiment of the present invention, it includes: an iron core and a fixing assembly, the iron core is provided with a coil, the upper end of the iron core is provided with a connecting frame, and the upper and lower ends of the coil are provided with pressure blocks; the fixing assembly includes an upper clamp, a lower clamp and a plurality of connecting members, the upper clamp is provided above the iron core and connected to the connecting frame, the lower clamp is provided below the iron core, a plurality of the connecting members are circumferentially arranged between the upper clamp and the lower clamp, a plurality of the connecting members cooperate to connect the upper clamp and the lower clamp, the upper clamp is provided with an adjustable pressing pin, and adjusting the pressing pin to press downward can compress the pressure block located at the upper end of the coil, thereby fixing the coil.

[0009] The transformer provided by the embodiment of the present invention has at least the following beneficial effects: during installation, the upper clamp is first installed on the upper end of the connecting frame, the lower clamp is set on the lower end of the iron core, and the upper clamp and the lower clamp are connected as a whole by using the connecting piece, and then the coil is positioned through the positioning holes and the positioning nails and installed to the iron core, and then the pressure blocks are installed at the upper and lower ends of the coil, and finally the pressure nails are installed on the upper clamp, and the pressure nails are adjusted so that the pressure nails press the pressure block at the upper end of the coil downward, and the pressure block generates a downward pressing force on the coil, so that the lower end of the coil fits with the pressure block at the lower end of the coil, thereby completing the installation of the transformer. After the installation is completed, The iron core is fixed as a whole by the upper clamp, the lower clamp and a plurality of connecting parts. The fixing method is stable, and the weight of the iron core is supported by the connecting parts and the lower clamp after being transferred to the upper clamp. The iron core is in a suspended state as a whole, and the coil does not need to bear the weight of the iron core. By arranging pressure blocks at the upper and lower ends of the coil, and using the pressure pins of the upper clamp to press the pressure block at the upper end of the coil, while the pressure pins of the upper clamp press the pressure block, the pressure block generates a downward pressing force on the coil, so that the lower end of the coil fits with the pressure block located at the lower end of the coil, thereby achieving further fixation of the coil, effectively reducing noise generated during operation, and reducing the impact on surrounding residents.

[0010] According to the transformer provided by the embodiment of the present invention, a connecting column is provided at the upper end of the connecting frame, and the upper clamp is provided with a socket, the connecting column passes through the socket, and the connecting column is connected with a nut to fix the upper clamp.

[0011] According to the transformer provided by the embodiment of the present invention, the connecting frame is provided with a plurality of the connecting columns at intervals, the upper clamp is provided with a plurality of the insertion holes, and the connecting columns correspond to the insertion holes one by one.

[0012] According to the transformer provided by the embodiment of the present invention, the connecting frame extends from top to bottom, and connecting columns are provided at the upper and lower ends of the connecting frame. The upper clamp and the lower clamp are both provided with insertion holes, and the connecting columns pass through the insertion holes. The connecting columns are connected with nuts to fix the upper clamp and the lower clamp.

[0013] According to the transformer provided by the embodiment of the present invention, the upper clamp and the lower clamp both include a vertical plate and a connecting plate extending outward, the connecting plate is fixedly connected to the vertical plate, and the connecting member and the pressing nail are both connected to the connecting plate.

[0014] According to the transformer provided by the embodiment of the present invention, reinforcing ribs are provided between the vertical plate and the connecting plate.

[0015] According to the transformer provided by the embodiment of the present invention, a nut or a buckle is provided at the end of the connecting member to connect the upper clamping member and / or the lower clamping member.

[0016] According to the transformer provided by the embodiment of the present invention, a mounting hole is provided on the connecting plate, two nuts are spaced apart on the pressing nail, the pressing nail is passed through the mounting hole, and the two nuts respectively abut against the upper and lower sides of the connecting plate.

[0017] According to the transformer provided by the embodiment of the present invention, a pressure pad is provided at one end of the pressure pin close to the pressure block, and the pressure pad abuts against the outer wall of the pressure block.

[0018] According to the transformer provided by the embodiment of the present invention, the iron core has a core column, the coil is arranged on the core column, and the connecting piece is parallel to the core column.

[0019] According to the transformer provided by the embodiment of the present invention, the lower clamp is provided with a first positioning portion, the connecting frame is provided with a second positioning portion, and the first positioning portion is engaged with the second positioning portion.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 An overall schematic diagram of a transformer provided in an embodiment of the present utility model;

[0023] Figure 2 A side view of a transformer provided in an embodiment of the present utility model;

[0024] Figure 3 A schematic structural diagram of the core and the connecting frame provided in an embodiment of the present utility model;

[0025] Figure 4 A schematic structural diagram of another iron core and connecting frame provided in an embodiment of the present utility model;

[0026] Figure 5 This is a structural schematic diagram of the iron core, connecting frame and positioning holes provided in an embodiment of the present utility model.

[0027] The accompanying figures are as follows:

[0028] Iron core 100 ; coil 110 ; connecting frame 120 ; positioning hole 121 ; upper clamp 130 ; lower clamp 140 ; ​​connecting member 150 ; pressing block 160 ; pressing pin 170 ; connecting column 180 ; connecting plate 190 ; reinforcing rib 200 . DETAILED DESCRIPTION

[0029] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] In the description of this utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] With the development of power grids, energy conservation requirements are becoming increasingly stringent. Amorphous alloy three-dimensional wound core transformers are widely used due to their advantages such as energy conservation and environmental protection. However, in related technologies, compared with silicon steel core products, amorphous alloy three-dimensional wound cores vibrate during operation due to unstable fixation, which produces greater noise. The currently used suspension method is to set pads at the upper and lower ends of the core so that the pads abut against the coils, and the core is supported by the coils to achieve the purpose of suspension. However, this suspension method has the following disadvantages:

[0034] (1) The part where the coil contacts the pressing block needs to bear the weight of the core, which may cause local damage to the coil.

[0035] (2) Using the coil to support the iron core will cause the coil to tilt inward, which will have a negative impact on the transformer's ability to withstand short circuits;

[0036] (3) The pressing block is located between the coil and the iron core and is fixed only by bonding and pressing. When the pressing block bears the weight of the iron core, there is a risk of it falling during transportation.

[0037] In order to solve the above problems, the embodiment of the present invention provides a transformer. After installation, the core 100 is fixed by the upper clamp 130, the lower clamp 140 and the plurality of connectors 150. The fixing method is stable, and the weight of the core 100 is transferred to the upper clamp 130 and supported by the connector 150 and the lower clamp 140. The core 100 is in a suspended state as a whole, and the coil 110 does not need to bear the weight of the core 100. By arranging pressure blocks 160 at the upper and lower ends of the coil 110 and utilizing the pressure of the upper clamp 130, the core 100 is fixed by the upper clamp 130 and the plurality of connectors 150. The nail 170 presses the pressure block 160 at the upper end of the coil 110. While the pressure nail 170 of the upper clamp 130 presses the pressure block 160, the pressure block 160 generates a downward pressing force on the coil 110, so that the lower end of the coil 110 fits with the pressure block 160 located at the lower end of the coil 110, thereby further fixing the coil 110, effectively reducing the noise generated during operation, and reducing the impact on surrounding residents. The specific structure and function of the transformer provided by the embodiment of the utility model will be further explained below in combination with text and drawings.

[0038] Reference Figures 1 to 3 According to an embodiment of the present invention, a transformer is provided, comprising: an iron core 100 and a fixing assembly, wherein the iron core 100 is provided with a coil 110, and a connecting frame 120 is provided at the upper end of the iron core 100; the fixing assembly comprises an upper clamp 130, a lower clamp 140 and a plurality of connecting members 150, wherein the upper clamp 130 is provided above the iron core 100 and connected to the connecting frame 120, the lower clamp 140 is provided below the iron core 100, and the plurality of connecting members 150 are circumferentially arranged between the upper clamp 130 and the lower clamp Between the parts 140, multiple connecting parts 150 cooperate to connect the upper clamping part 130 and the lower clamping part 140, and pressure blocks 160 are provided at the upper and lower ends of the coil 110. The upper clamping part 130 is provided with an adjustable pressure pin 170. The pressure pin 170 is adjusted to press the pressure block 160 at the upper end of the coil 110 downward, and since the pressure block 160 generates a downward pressing force on the coil 110, the lower end of the coil 110 can fit with the pressure block 160 located at the lower end of the coil 110, thereby fixing the coil 110.

[0039] It can be understood that the lower clamp 140 is provided with a first positioning portion, which can be a positioning hole 121, a positioning groove, etc., and the connecting frame 120 is provided with a second positioning portion, which can be a positioning pin, a positioning boss, etc. The first positioning portion and the second positioning portion are not shown and can be set according to actual needs. The first positioning portion and the second positioning portion are engaged to achieve positioning between the lower clamp 140 and the connecting frame 120; specifically, in some embodiments, the first positioning portion is a positioning pin, which is located at the upper end of the lower clamp 140, and the second positioning portion is a positioning hole 121, which is located at the lower end of the connecting frame 120, and the positioning pin is engaged with the positioning hole 121.

[0040] According to the transformer provided by the embodiment of the present invention, when installing, first install the upper clamp 130 on the upper end of the connecting frame 120, set the lower clamp 140 on the lower end of the iron core 100, and then use the connecting piece 150 to connect the upper clamp 130 and the lower clamp 140 as a whole, and then use the positioning hole 121 and the positioning pin (not shown in the figure) to position and install the coil 110 to the iron core 100 and install the pressure block 160 at the upper and lower ends of the coil 110, and finally install the pressure pin 170 on the upper clamp 130, and adjust the pressure pin 170 so that the pressure pin 170 presses the pressure block 160 located at the upper end of the coil 110 downward, and the pressure block 160 generates a downward pressing force on the coil 110, so that the lower end of the coil 110 fits with the pressure block 160 located at the lower end of the coil 110, thereby completing the installation of the transformer. After the installation is completed, the iron core 100 The whole is fixed by the upper clamp 130, the lower clamp 140 and a plurality of connecting members 150. The fixing method is stable, and the weight of the iron core 100 is transferred to the upper clamp 130 and supported by the connecting member 150 and the lower clamp 140. The iron core 100 is in a suspended state as a whole, and the coil 110 does not need to bear the weight of the iron core 100; by arranging pressure blocks 160 at the upper and lower ends of the coil 110, and using the pressure pins 170 of the upper clamp 130 to press the pressure block 160 at the upper end of the coil 110, while the pressure pins 170 of the upper clamp 130 press the pressure block 160, the pressure block 160 generates a downward pressing force on the coil 110, so that the lower end of the coil 110 is fitted with the pressure block 160 located at the lower end of the coil 110, thereby achieving further fixation of the coil 110, effectively reducing the noise generated during operation, and reducing the impact on surrounding residents.

[0041] It can be understood that the upper clamp 130, the lower clamp 140 and the multiple connecting members 150 fix the iron core 100 as a whole and suspend the iron core 100. The weight of the iron core 100 is transferred to the upper clamp 130 through the connecting frame 120, and then transferred to the lower clamp 140 through the multiple connecting members 150 arranged at intervals. The multiple connecting members 150 can disperse the force and effectively avoid the problem of excessive local force. The pressure block 160 is pressed tightly by the pressure pin 170 on the upper clamp 130. The coil 110 does not need to bear the weight of the iron core 100 and is not easy to fall during transportation.

[0042] It should be noted that the core 100 is a three-dimensional wound core, including an inner mold and an outer mold. The outer mold is relatively wide, and the connecting frame 120 is arranged on the outer mold, which is beneficial to enhancing the overall structural strength of the core 100.

[0043] Reference Figure 1 According to the transformer provided by the embodiment of the present invention, a connecting column 180 is provided at the upper end of the connecting frame 120, and the upper clamp 130 is provided with a socket. The connecting column 180 passes through the socket. The connecting column 180 is connected with a nut to fix the upper clamp 130. The connection method between the connecting frame 120 and the upper clamp 130 is stable and reliable.

[0044] Reference Figures 1 to 3 According to the transformer provided by the embodiment of the present invention, the connecting frame 120 is provided with a plurality of connecting columns 180 at intervals, and the upper clamp 130 is provided with a plurality of sockets. The connecting columns 180 correspond to the sockets one by one, and each connecting column 180 is inserted into a socket and fixed by a nut, which can further increase the stability of the connection between the connecting frame 120 and the upper clamp 130.

[0045] Reference Figure 3 and Figure 4 According to the transformer provided by the embodiment of the present invention, the connecting frame 120 extends from top to bottom to the lower end of the coil 110, and connecting columns 180 are provided at the upper and lower ends of the connecting frame 120. The upper clamp 130 and the lower clamp 140 are both provided with sockets, and the connecting columns 180 pass through the sockets. The connecting columns 180 are connected with nuts to fix the upper clamp 130 and the lower clamp 140. The connection method of the connecting frame 120, the upper clamp 130 and the lower clamp 140 is stable and reliable.

[0046] It should be noted that after the connecting columns 180 at the upper and lower ends of the connecting frame 120 are connected to the upper clamp 130 and the lower clamp 140 respectively, the iron core 100 can be fixed from the bottom to prevent the iron core 100 from shaking; the connecting frame 120 extends from top to bottom to the lower end of the coil 110. After the upper clamp 130 and the lower clamp 140 are installed, the integrity of the entire transformer structure is better and more stable.

[0047] Reference Figure 5It should be noted that a plurality of positioning holes 121 can be provided at the lower end of the connecting frame 120, and a plurality of positioning pins (not shown in the figure) can be provided at the upper end of the lower clamp 140. During installation, the connecting frame 120 is moved to the top of the lower clamp 140 so that the plurality of positioning holes 121 at the lower end of the connecting frame 120 are aligned one by one with the plurality of positioning pins at the upper end of the lower clamp 140, and then the connecting frame 120 is lowered so that the plurality of positioning pins at the upper end of the lower clamp 140 correspond one by one and are inserted into the plurality of positioning holes 121 at the lower end of the connecting frame 120. This not only realizes the positioning of the iron core 100, but also prevents the iron core 100 from shaking.

[0048] It is understandable that the number of positioning holes 121 can be 2, 3, 4, etc., and can be set according to actual needs; the number of positioning pins is the same as the number of positioning holes 121.

[0049] Reference Figure 1 and Figure 2 According to the transformer provided by the embodiment of the present invention, the upper clamp 130 and the lower clamp 140 both include a vertical plate and a connecting plate 190 extending outward. The connecting plate 190 is fixedly connected to the vertical plate and is located at one end of the upper clamp 130 or the lower clamp 140 close to the coil 110. The connecting plate 190 extending outward is conducive to increasing a certain amount of installation space, which facilitates the installation of the connector 150 and the press pin 170.

[0050] Reference Figure 1 and Figure 2 According to the transformer provided by the embodiment of the present invention, a reinforcing rib 200 is provided between the vertical plate and the connecting plate 190 , which is beneficial to strengthening the structural strength between the vertical plate and the connecting plate 190 .

[0051] Reference Figure 1 and Figure 2 According to the transformer provided by the embodiment of the present invention, a nut or a buckle is provided at the end of the connecting member 150 to connect the upper clamp 130 and / or the lower clamp 140; when a nut is provided at the end of the connecting member 150, a through hole is provided on the connecting plate 190 for the end of the connecting member 150 to pass through, and the nuts at both ends of the connecting member 150 are tightened at the same time to connect the upper clamp 130 and the lower clamp 140; when a buckle is provided at the end of the connecting member 150, a socket that cooperates with the buckle is provided on the connecting plate 190, and the buckle engagement and the socket can realize the function of connecting the upper clamp 130 and the lower clamp 140.

[0052] Reference Figure 1 and Figure 2According to the transformer provided by the embodiment of the present invention, a mounting hole is provided on the connecting plate 190, and two nuts are provided on the pressure pin 170 at intervals. The pressure pin 170 is passed through the mounting hole, and the two nuts respectively abut the upper and lower sides of the connecting plate 190. The two nuts simultaneously press the upper and lower sides of the connecting plate 190, which is conducive to fixing the pressure pin 170.

[0053] It is understandable that the pressing pin 170 can also be adjusted by loosening the nut of the pressing pin 170 so that the pressing pin 170 is moved closer to or away from the pressing block 160 , thereby adjusting the pressing force of the pressing pin 170 on the pressing block 160 .

[0054] Reference Figure 1 and Figure 2 According to the transformer provided by the embodiment of the present invention, a pressure pad is provided at one end of the pressure pin 170 close to the pressure block 160. The pressure pad has a large width and abuts against the outer wall of the pressure block 160. The pressing force of the pressure pin 170 can be well transmitted to the pressure block 160 through the pressure pad.

[0055] It should be noted that the relatively wide pressure pad can disperse the pressing force of the pressure pins 170 , thereby preventing the pressure block 160 from being deformed due to excessive concentration of the pressing force of the pressure pins 170 .

[0056] Reference Figure 1 and Figure 2 According to the transformer provided by the embodiment of the present invention, the iron core 100 has a core column, the coil 110 is arranged on the core column, and the connecting piece 150 is parallel to the core column, which is beneficial to improving the force effect when the upper clamp 130, the lower clamp 140 and the multiple connecting pieces 150 cooperate to fix the iron core 100, thereby improving the integrity of the transformer.

[0057] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. The present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A transformer, characterized in that: include: An iron core is provided with a coil, a connecting frame is provided at the upper end of the iron core, and pressure blocks are provided at the upper and lower ends of the coil; A fixing assembly includes an upper clamp, a lower clamp and multiple connecting members, the upper clamp is arranged above the iron core and connected to the connecting frame, the lower clamp is arranged below the iron core, multiple connecting members are circumferentially arranged between the upper clamp and the lower clamp, and multiple connecting members cooperate to connect the upper clamp and the lower clamp, and the upper clamp is provided with an adjustable pressing pin, which can be adjusted to press the pressure block located at the upper end of the coil, thereby fixing the coil.

2. The transformer according to claim 1, characterized in that The upper end of the connecting frame is provided with a connecting column, and the upper clamp is provided with a socket. The connecting column passes through the socket, and the connecting column is connected with a nut to fix the upper clamp.

3. The transformer according to claim 2, characterized in that The connecting frame is provided with a plurality of the connecting columns at intervals, the upper clamp is provided with a plurality of the insertion holes, and the connecting columns correspond to the insertion holes one by one.

4. The transformer according to claim 1, characterized in that The connecting frame extends from top to bottom, and connecting columns are provided at the upper and lower ends of the connecting frame. The upper clamp and the lower clamp are both provided with sockets, and the connecting columns pass through the sockets. The connecting columns are connected with nuts to fix the upper clamp and the lower clamp.

5. The transformer according to claim 1, characterized in that The upper clamp includes a vertical plate and a connecting plate extending outward, the connecting plate is fixedly connected to the vertical plate, and the connecting member and the pressing nail are both connected to the connecting plate.

6. The transformer according to claim 5, characterized in that The end of the connecting member is provided with a nut or a buckle to connect the upper clamping member and / or the lower clamping member.

7. The transformer according to claim 5, characterized in that The connecting plate is provided with a mounting hole, and two nuts are spaced apart on the pressure nail. The pressure nail passes through the mounting hole, and the two nuts respectively abut against the upper and lower sides of the connecting plate.

8. The transformer according to claim 1, characterized in that A pressure pad is provided at one end of the pressure pin close to the pressure block, and the pressure pad abuts against the outer wall of the pressure block.

9. The transformer according to claim 1, characterized in that The iron core has a core column, the coil is arranged on the core column, and the connecting piece is parallel to the core column.

10. The transformer according to claim 1, characterized in that The lower clamp is provided with a first positioning portion, and the connecting frame is provided with a second positioning portion, and the first positioning portion is engaged with the second positioning portion.

Images