Insulating iron yoke of dry-type transformer

Abstract

The dry-type transformer insulation iron yoke comprises two iron yoke assemblies which are distributed up and down, each iron yoke assembly comprises a first iron yoke piece and a second iron yoke piece which are oppositely arranged, the two ends of the side, facing the second iron yoke piece, of each first iron yoke piece are each provided with a limiting groove, and one side of an inner cavity of each limiting groove is provided with sliding grooves which are evenly distributed. A positioning bolt is slidably mounted in the sliding groove, and one end of the positioning bolt is fixedly connected with a spring I. The iron yoke design structure capable of being adjusted according to actual use requirements is adopted, and the length of the upper iron yoke assembly and the length of the lower iron yoke assembly can be adjusted according to the actual use requirements in actual use. In addition, one mounting cavity position can be added, the mounting number of the armatures is increased, the number of the coils can be further flexibly increased, the use requirements of the iron core in different working scenes are met, and convenience is provided for work and use of a user.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating yokes, in particular to an insulating yoke for a dry-type transformer. Background Technique

[0002] The yoke is one of the components of a dry-type transformer. The yoke is a component installed at the end of the iron core for sorting and fixing multiple iron chips together, and also plays an insulating role. The traditional yoke is difficult to be flexibly adjusted according to actual needs during actual use. Therefore, the size set during production cannot be changed during later use. That is to say, the yoke with a modified size is matched with the iron core (armature) after leaving the factory. For example, when there are only two groups of iron cores, then the yoke can only be assembled with these two groups of iron cores and cannot be assembled with three groups of iron cores. This greatly limits the installation and use of the yoke and also increases the production cost.

[0003] In view of the above problems, the utility model is improved. Summary of the Invention

[0004] The utility model provides an insulating yoke for a dry-type transformer, which solves the above problems existing in the prior art during use.

[0005] The technical solution of the utility model is realized as follows: An insulating yoke for a dry-type transformer includes two yoke components distributed up and down. The yoke component includes a first yoke sheet and a second yoke sheet arranged opposite to each other. Both ends of the first yoke sheet on the side facing the second yoke sheet are provided with limiting grooves. One side of the inner cavity of the limiting groove is provided with uniformly distributed sliding grooves. A positioning pin is slidably installed inside the sliding groove. One end of the positioning pin is fixedly connected to a first spring. The end of the first spring away from the positioning pin is fixedly connected to the inner wall of the sliding groove. Both ends of the first yoke sheet on the side facing the second yoke sheet are fixedly connected with sliding plates adapted to the limiting grooves. The side of the sliding plate is provided with uniformly distributed positioning holes, and the positioning holes are adapted to the positioning pins.

[0006] For the insulating yoke for a dry-type transformer as described above in the utility model, further: Activity notches are provided on the sides of the first yoke sheet and the second yoke sheet facing away from each other. An activity plate is movably arranged inside the activity notch. A plurality of installation pins are penetrated through one end inside the activity notch, and one end of the installation pin penetrates to the outside of the activity plate.

[0007] For the insulating yoke for a dry-type transformer as described above in the utility model, further: A second spring is sleeved on the surface of the installation pin, and both ends of the second spring are respectively fixedly connected to the activity plate and the inner wall of the activity notch.

[0008] The insulating yoke for dry-type transformers of the present utility model as described above further: Both ends of the inner side of the movable notch are fixedly connected with sliding rails, and limiting openings are provided on both sides of the movable plate. The movable plate is movably installed on the two sliding rails through the two limiting openings.

[0009] The insulating yoke for dry-type transformers of the present utility model as described above further: A plurality of mounting sleeves are inserted into the interiors of the first yoke sheet and the second yoke sheet. Slots are provided on the outer sides of the mounting sleeves, and a plurality of iron core sheets are arranged between the two yoke assemblies. Both ends of the iron core sheet are respectively inserted into the corresponding slots.

[0010] The insulating yoke for dry-type transformers of the present utility model as described above further: A plurality of pin holes one adapted to the mounting pins are provided at one end of the inner side of the movable notch, and a pin hole two adapted to the mounting pins is provided on the side of the mounting sleeve facing the mounting pin.

[0011] The insulating yoke for dry-type transformers of the present utility model as described above further: A winding coil is differentially wound on the surfaces of a plurality of iron core sheets, and the number of turns of the winding coil is not less than five turns.

[0012] In summary, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model adopts a yoke design structure that can be adjusted according to actual use requirements. In actual use, the upper and lower yoke assemblies can adjust the length according to actual use requirements, and an additional mounting cavity can be added to increase the number of armatures installed, and thus the number of coils can also be flexibly increased to meet the use requirements of the iron core in different working scenarios, providing convenience for the user's work.

[0014] 2. Through the settings of the movable notch, the movable plate, the mounting pin, and the second spring of the present utility model, after the mounting sleeve is inserted into the yoke assembly, that is, into the first yoke sheet or the second yoke sheet, the corresponding mounting pin will be first extruded outward and the second spring will be stretched. When the slot on the mounting sleeve is aligned with the mounting pin, the mounting pin will be pulled back and inserted into the corresponding pin hole two under the action of the second spring, thereby realizing the positioning and fixing of the mounting sleeve and ensuring the stability of the mounting sleeve after installation, providing convenience for the user's use.

[0015] 3. Through the settings of the sliding rail and the limiting opening of the present utility model, when the mounting pin is inserted into the slot on the mounting sleeve during the installation of the mounting sleeve, the movable plate will also move accordingly. In this way, it is equivalent to the sliding rail sliding in the limiting opening, which can play a role in limiting the movement of the movable plate and ensure that the mounting pin can be accurately inserted into the slot on the mounting sleeve, providing convenience for the user's work.

[0016] 4. Through the arrangement of the mounting sleeve and the slot, the slot on the mounting sleeve faces the iron core sheet. Therefore, when the iron core sheet is installed, its two ends will be inserted into the corresponding slots, and then it is installed on the yoke assembly. Moreover, the mounting sleeve can be installed on the corresponding iron core sheet in advance before assembly. In this way, during the later assembly and use, the iron core sheet can be quickly assembled onto the yoke assembly, improving the installation efficiency and providing convenience for the user's installation and use.

[0017] 5. Through the arrangement of the first pin hole and the second pin hole, during installation and use, the first pin hole and the second pin hole are aligned on the same axis, and both the first pin hole and the second pin hole are used for inserting the installation pin. In this way, the installation pin can pass through the corresponding first pin hole and then be inserted into the corresponding mounting sleeve to achieve the positioning and fixing of the mounting sleeve, completing the assembly of the iron core sheet. At the same time, the mounting sleeve can also separate two adjacent iron core sheets, thus playing an insulating role and providing convenience for the user's installation and use.

[0018] 6. Through the arrangement of the winding coil, the winding coil is wound around multiple iron core sheets at the same time, and the number of winding turns is very large. The specific number of turns is determined by the user according to actual usage requirements and standards, providing convenience for the user's use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is an exploded schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 3 It is an exploded schematic diagram of the partial three-dimensional structure of the present invention;

[0023] Figure 4 is Figure 3 An enlarged schematic diagram of the partial three-dimensional structure of A in;

[0024] Figure 5 It is a schematic diagram of the sectional view of the three-dimensional structure of the first yoke piece.

[0025] In the figure: 1. Yoke assembly, 101. First yoke sheet, 102. Second yoke sheet, 103. Sliding plate, 104. Positioning jack, 105. Limiting groove, 106. Sliding groove, 107. Positioning pin, 108. First spring, 2. Movable notch, 3. Sliding guide rail, 4. Movable plate, 5. Limiting opening, 6. Mounting pin, 7. Second spring, 8. Mounting sleeve, 9. First pin hole, 10. Second pin hole, 11. Iron core sheet, 12. Winding coil. Detailed implementation mode

[0026] The following will combine the attached drawings in the embodiments of the present invention Figures 1-5 to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0027] A dry-type transformer insulating yoke includes two yoke assemblies 1 distributed up and down. The yoke assembly 1 includes a first yoke sheet 101 and a second yoke sheet 102 arranged oppositely. Both ends of the first yoke sheet 101 on the side facing the second yoke sheet 102 are provided with limiting grooves 105. One side of the inner cavity of the limiting groove 105 is provided with uniformly distributed sliding grooves 106. A positioning pin 107 is slidably installed in the sliding groove 106. One end of the positioning pin 107 is fixedly connected with a first spring 108. The end of the first spring 108 away from the positioning pin 107 is fixedly connected to the inner wall of the sliding groove 106. Both ends of the first yoke sheet 101 on the side facing the second yoke sheet 102 are fixedly connected with sliding plates 103 adapted to the limiting grooves 105. The sliding plates 103 are provided with uniformly distributed positioning jacks 104 on one side. The positioning jacks 104 are adapted to the positioning pins 107.

[0028] The specific usage process is as follows: During use, if two sets of iron cores are installed, then there is no need to adjust the yoke assembly 1. If three sets of iron cores are installed, the length of the yoke assembly 1 can be extended to meet the installation requirements. It should be noted that if there are more sets of iron cores, corresponding adjustment structures can be added to adjust the length of the yoke assembly 1 to meet the installation requirements for more sets of iron cores. The adjustment process is as follows: The user directly holds the first yoke plate 101 and the second yoke plate 102 and pulls them in opposite directions. During this period, when the first yoke plate 101 and the second yoke plate 102 move, the sliding plate 103 will slide in the limit groove 105 following the second yoke plate 102, so as to ensure the stability when the second yoke plate 102 and the first yoke plate 101 are connected. Among them, the sliding plate 103 will first squeeze the positioning pin 107 into the corresponding sliding groove 106. At this time, the positioning pin 107 will first move out of the corresponding positioning hole 104, and at the same time compress the first spring 108. When the next positioning hole 104 moves to the position of the current positioning pin 107, under the action of the first spring 108, the positioning pin 107 will be ejected from the corresponding sliding groove 106 and simultaneously snap into the positioning hole 104 at the current position after moving. As the second yoke plate 102 continues to move, the sliding plate 103 will also continue to move in the limit groove 105, and the positioning pin 107 will repeatedly move in and out of the corresponding positioning hole 104 and sliding groove 106 until the adjustment work is completed. At this time, the positioning pin 107 is stuck in the corresponding positioning hole 104 under the action of the first spring 108, thereby positioning the sliding plate 103 at the current position and also positioning the second yoke plate 102 at the current position. At this time, the chamber between the first yoke plate 101 and the second yoke plate 102 is the installation chamber derived after adjustment, which is used to install the additional iron cores, so as to meet the supporting installation requirements for different numbers of sets of iron cores and provide convenience for the user's work. That is to say, according to the actual work requirements, this yoke can be adjusted to install three or more sets of iron cores, so that the yoke can meet more work scenarios and more work requirements, and can also reduce production costs and provide convenience for the user's work. After the yoke assembly 1 is adjusted, all the installation sleeves 8 are installed into the second yoke plate 102 and the first yoke plate 101 in sequence. Among them, after the installation sleeve 8 is snapped into the yoke assembly 1, that is, into the first yoke plate 101 or the second yoke plate 102, the corresponding installation pin 6 will be first squeezed outwards and the second spring 7 will be stretched. When the slot on the installation sleeve 8 is aligned with the installation pin 6, under the action of the second spring 7, the installation pin 6 will be pulled back and inserted into the corresponding pin hole two 10, so as to realize the positioning and fixation of the installation sleeve 8 and ensure the stability after the installation sleeve 8 is installed, providing convenience for the user's use. When installing the installation sleeve 8, the installation pin 6 will be inserted into the slot on the installation sleeve 8, and at the same time the movable plate 4 will also move accordingly. In this way, it is equivalent to the sliding guide 3 sliding in the limit opening 5.In this way, it can play a role in limiting the movement of the movable plate 4, ensuring that the installation pin 6 can be accurately inserted into the slot on the installation sleeve 8, providing convenience for the user's work. The slot on the installation sleeve 8 faces the iron chip 11. Therefore, when the iron chip 11 is installed, its two ends will be inserted into the corresponding slots, and then it is installed on the yoke assembly 1. And before assembly, the installation sleeve 8 can be installed on the corresponding iron chip 11 in advance. In this way, in the later assembly and use, the iron chip 11 can be quickly assembled onto the yoke assembly 1, improving the installation efficiency and providing convenience for the user's installation. During installation and use, the first pin hole 9 and the second pin hole 10 are aligned on the same axis, and both the first pin hole 9 and the second pin hole 10 are used for the installation pin 6 to be inserted. In this way, the installation pin 6 can pass through the corresponding first pin hole 9 and then be inserted into the corresponding installation sleeve 8 to realize the positioning and fixing of the installation sleeve 8, completing the assembly of the iron chip 11. At the same time, the installation sleeve 8 can also separate two adjacent iron chips 11, thus playing an insulating role and providing convenience for the user's installation. It should be noted that all the installation sleeves 8 can also be installed on the corresponding iron chips 11 first, and finally all the installation sleeves 8 and iron chips 11 are inserted into the first yoke plate 101 and the second yoke plate 102 together, thereby improving the user's installation efficiency.

[0029] Therefore, a yoke design structure that can be adjusted according to actual use requirements is adopted. In actual use, the upper and lower yoke assemblies 1 can adjust the length according to actual use requirements, and an installation cavity can also be added to increase the number of armatures installed, and then the number of coils can also be increased flexibly to meet the use requirements of the iron core in different working scenarios, providing convenience for the user's work.

[0030] On the opposite sides of the first yoke plate 101 and the second yoke plate 102, there are activity notches 2 provided. An activity plate 4 is movably arranged inside the activity notch 2. At one end inside the activity notch 2, a plurality of installation pins 6 are arranged through. One end of the installation pin 6 penetrates to the outside of the activity plate 4. A second spring 7 is sleeved on the surface of the installation pin 6. The two ends of the second spring 7 are respectively fixedly connected to the activity plate 4 and the inner wall of the activity notch 2.

[0031] Specifically, the settings of the activity notch 2, the activity plate 4, the installation pin 6 and the second spring 7 are such that after the installation sleeve 8 is snapped into the yoke assembly 1, that is, into the first yoke plate 101 or the second yoke plate 102, the corresponding installation pin 6 will first be squeezed outward and the second spring 7 will be stretched. When the slot on the installation sleeve 8 is aligned with the installation pin 6, under the action of the second spring 7, the installation pin 6 will be pulled back and inserted into the corresponding second pin hole 10, thereby realizing the positioning and fixing of the installation sleeve 8 and ensuring the stability of the installation sleeve 8 after installation, providing convenience for the user's use.

[0032] Both ends inside the movable notch 2 are fixedly connected with sliding guide rails 3. Limiting openings 5 are provided on both sides of the movable plate 4, and the movable plate 4 is movably installed on the two sliding guide rails 3 through the two limiting openings 5.

[0033] Specifically, due to the arrangement of the sliding guide rails 3 and the limiting openings 5, when installing the installation sleeve 8, the installation pin 6 will be inserted into the slot on the installation sleeve 8, and at the same time, the movable plate 4 will also move accordingly. In this way, it is equivalent to the sliding guide rails 3 sliding within the limiting openings 5, which can limit the movement of the movable plate 4 and ensure that the installation pin 6 can be accurately inserted into the slot on the installation sleeve 8, providing convenience for the user's work and use.

[0034] A plurality of installation sleeves 8 are inserted inside both the yoke piece one 101 and the yoke piece two 102. Slots are provided on the outer side of the installation sleeve 8. A plurality of iron core chips 11 are arranged between the two yoke assemblies 1, and both ends of the iron core chip 11 are respectively inserted into the corresponding slots.

[0035] Specifically, due to the arrangement of the installation sleeve 8 and the slots, the slots on the installation sleeve 8 face the iron core chips 11. Therefore, when installing the iron core chips 11, both ends thereof will be inserted into the corresponding slots, and thus they are installed on the yoke assembly 1. And before assembly, the installation sleeve 8 can be installed on the corresponding iron core chips 11 in advance. In this way, during the later assembly and use, the iron core chips 11 can be quickly assembled onto the yoke assembly 1, improving the installation efficiency and providing convenience for the user's installation and use.

[0036] One end inside the movable notch 2 is provided with a plurality of pin holes one 9 adapted to the installation pin 6, and one side of the installation sleeve 8 facing the installation pin 6 is provided with a pin hole two 10 adapted to the installation pin 6.

[0037] Specifically, due to the arrangement of the pin hole one 9 and the pin hole two 10, during installation and use, the pin hole one 9 and the pin hole two 10 are aligned on the same axis, and both the pin hole one 9 and the pin hole two 10 are used for the installation pin 6 to be inserted. In this way, the installation pin 6 can pass through the corresponding pin hole one 9 and then be inserted into the corresponding installation sleeve 8 to realize the positioning and fixing of the installation sleeve 8, complete the assembly of the iron core chips 11, and at the same time, the installation sleeve 8 can also separate two adjacent iron core chips 11, thus playing an insulating role and providing convenience for the user's installation and use.

[0038] A winding coil 12 is wound around the surfaces of a plurality of iron core chips 11, and the number of turns of the winding coil 12 is not less than five turns.

[0039] Specifically, the winding coil 12 is arranged in such a way that it is wound around multiple iron chips 11 simultaneously, and the number of winding turns is large. The specific number of turns is determined by the user according to actual usage requirements and standards, providing convenience for the user's use.

[0040] It should be noted that there are a large number of mature technologies to support the functions to be realized by each hardware in the present utility model, which belong to the prior art. The essence of the present utility model lies in optimizing the combination of existing hardware and its connection manner for a specific application scenario to meet the adaptation requirements in the specific application scenario and solve the problems raised in the background art (without involving the improvement of the software inside the hardware).

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A dry-type transformer insulating iron yoke, comprising two iron yoke components (1) arranged in an upper and lower arrangement, characterized in that: The iron yoke assembly (1) comprises an iron yoke piece 1 (101) and an iron yoke piece 2 (102) which are arranged opposite to each other. The iron yoke piece 1 (101) has limit grooves (105) at both ends facing the iron yoke piece 2 (102). One side of the inner cavity of the limit groove (105) has evenly distributed sliding grooves (106). A positioning pin (107) is slidably installed inside the sliding groove (106). One end of the positioning pin (107) is fixedly connected to a spring. (108), one end of the spring 1 (108) away from the positioning pin (107) is fixedly connected to the inner wall of the sliding groove (106), and both ends of the iron yoke piece 1 (101) facing the iron yoke piece 2 (102) are fixedly connected to a sliding plate (103) adapted to the limiting groove (105), and one side of the sliding plate (103) is provided with evenly distributed positioning holes (104), and the positioning holes (104) are adapted to the positioning pin (107).

2. The insulating iron yoke of a dry-type transformer according to claim 1, characterized in that: The first iron yoke piece (101) and the second iron yoke piece (102) are each provided with a movable notch (2) on the opposite side thereof, a movable plate (4) is movably provided inside the movable notch (2), a plurality of mounting pins (6) are provided through one end of the inner side of the movable notch (2), and one end of the mounting pin (6) is extended to the outer side of the movable plate (4).

3. The insulating iron yoke of a dry-type transformer according to claim 2, characterized in that: A second spring (7) is sleeved on the surface of the mounting pin (6), and two ends of the second spring (7) are respectively fixedly connected to the inner wall of the movable plate (4) and the movable notch (2).

4. The insulating iron yoke of a dry-type transformer according to claim 3, characterized in that: Both ends of the inner side of the movable notch (2) are fixedly connected to sliding guide rails (3), and both sides of the movable plate (4) are provided with limit openings (5), and the movable plate (4) is movably mounted on the two sliding guide rails (3) through the two limit openings (5).

5. The insulating iron yoke of a dry-type transformer according to claim 4, characterized in that: A plurality of mounting sleeves (8) are inserted into the interior of the first iron yoke piece (101) and the second iron yoke piece (102), a slot is provided on the outside of the mounting sleeve (8), and a plurality of iron core sheets (11) are arranged between the two iron yoke components (1), and two ends of the iron core sheets (11) are respectively inserted into corresponding slots.

6. The insulating iron yoke of a dry-type transformer according to claim 5, characterized in that: A plurality of first latch holes (9) adapted to the mounting latch (6) are formed at one end of the inner side of the movable notch (2), and a second latch hole (10) adapted to the mounting latch (6) is formed on the side of the mounting sleeve (8) facing the mounting latch (6).

7. The insulating iron yoke of a dry-type transformer according to claim 6, characterized in that: The surfaces of the plurality of iron core sheets (11) are differentially wound with a coil (12), and the number of turns of the coil (12) is not less than five.

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