Transformer

Abstract

The transformer comprises a first winding, a second winding and a third winding, the second winding and the third winding are located on the two sides of the first winding respectively, the first winding comprises symmetrical magnetic cores and coil pieces connected in the symmetrical magnetic cores, each magnetic core comprises a first magnetic plate and a second magnetic plate, and the second magnetic plates are located on the sides of the final rimes of the coil pieces. When the symmetrical magnetic cores are folded, the second magnetic plate is attached to one side of the coil piece to absorb scattered magnetism. According to the transformer disclosed by the utility model, when the internal load of the transformer is unbalanced, the magnetizing current is not uniform and the scattered magnetism is caused, the scattered magnetism is diffused towards the pin direction of the coil piece, and the scattered magnetism is prevented from being diffused towards the pin direction of the coil piece due to the fact that the symmetrical magnetic cores are folded and the second magnetic plates are attached to form a shielding plate and absorb the scattered magnetism; scattered magnetism is prevented from being refracted to the outside and cutting external parts, and the performance and the service life of the external parts are effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, especially a kind of transformer. BACKGROUND

[0002] Transformer is the device using the principle of electromagnetic induction to change AC voltage, main component includes support, insulation, magnetic core, primary coil, secondary coil.In wireless circuit, commonly used as voltage, auxiliary power supply, safety isolation etc..The copper sheet is set as shielding function in the part of coil pin in prior art transformer, but copper sheet will refract the scattered magnetic field to outside to cut other components to form heat, thereby affecting the performance and service life of other components.

[0003] Therefore, it is necessary to provide a transformer to solve the above technical problems. INVENTION CONTENTS

[0004] The utility model provides a kind of transformer, solve the problem that the transformer in prior art sets shielding sheet as shielding function, but copper sheet will refract the scattered magnetic field to outside to cut other components to form heat, thereby affecting the performance and service life of other components.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a kind of transformer, including first winding and respectively located second winding and third winding on the two sides of the first winding, the first winding includes symmetrical magnetic core and coil piece connected in the symmetrical magnetic core, the magnetic core includes first magnetic plate and second magnetic plate connected in one end of the first magnetic plate, the second magnetic plate is located on the side of the coil piece pin, the symmetrical magnetic core is closed when the second magnetic plate is attached to the side of the coil piece to absorb magnetic field.

[0006] In the utility model, the first winding is further provided with a framework, and the coil piece is wound on the framework.

[0007] In the utility model, the center of the second magnetic plate is further provided with a third magnetic plate for fixing the framework.

[0008] In the utility model, the transformer is further provided with a shell, and the first winding, the second winding and the third winding are located in the shell.

[0009] In the utility model, one end of the shell is further provided with an opening, and a plurality of water channels extending along the height direction of the shell are further provided in the shell, and the two ends of the water channel are respectively an inlet and an outlet.

[0010] In the utility model, one side of the shell is further provided with a mounting piece for closing the opening, and the two ends of the mounting piece are respectively provided with a water inlet channel communicated with the water inlet and a water outlet channel communicated with the water outlet.

[0011] The transformer further has a first base, and the first winding and the second winding are connected to the first base.

[0012] The third winding further has a second base for fixing the third winding.

[0013] The second base has a skirt for limiting the third winding.

[0014] The shell further has a plurality of positioning holes.

[0015] The first base and the second base have a plurality of positioning columns matched with the positioning holes.

[0016] Compared with the prior art, the transformer has the advantages that when the internal load of the transformer is unbalanced, the magnetization current is uneven, which causes the diffusion of the scattered magnetic field to the direction of the pin of the coil, and due to the symmetrical magnetic core, the second magnetic plate forms a shielding plate and absorbs the scattered magnetic field when being attached, thereby preventing the diffusion of the scattered magnetic field to the direction of the pin of the coil, avoiding the refraction of the scattered magnetic field to the outside and cutting the external components, and effectively protecting the performance and service life of the external components. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following briefly introduces the drawings needed in the embodiments, and the drawings in the following description are only corresponding to some embodiments of the present application.

[0018] Figure 1 It is a perspective view of the transformer of the present application.

[0019] Figure 2 It is a perspective view of the first winding of the transformer of the present application.

[0020] Figure 3 It is a perspective view of the magnetic core of the transformer of the present application.

[0021] Figure 4 It is a perspective view of the shell of the transformer of the present application.

[0022] Figure 5 It is a perspective view of the third winding of the transformer of the present application.

[0023] 11, first winding; 12, second winding; 13, third winding; 14, housing; 15, mounting; 151, water inlet channel; 152, water outlet channel; 111, magnetic core; 112, coil member; 113, skeleton; 1111, first magnetic plate; 1112, second magnetic plate; 1113, third magnetic plate; 141, water inlet; 142, water outlet; 143, positioning hole; 131, second base; 132, skirt; 133, positioning column. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present disclosure.

[0025] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the same meaning as commonly understood by one of ordinary skill in the art to which this present disclosure belongs.

[0026] The terms "first", "second", and similar terms used in the specification and claims of the present patent application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before the "include" or "contain" cover the elements or objects listed after the "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are used only to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0027] The technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present utility model.

[0028] The following is a preferred embodiment of a transformer provided by the present utility model that can solve the above technical problems.

[0029] Please refer to Figure 1 ,Figure 2 and Figure 3 ,in Figure 1 This is a perspective view of the transformer of this utility model. Figure 2 This is a perspective view of the first winding of the transformer of this utility model. Figure 3 This is a perspective view of the magnetic core of the transformer of this utility model.

[0030] In the diagram, units with similar structures are represented by the same labels.

[0031] The terms "first" and "second" in this utility model are used for descriptive purposes only and should not be construed as indicating or implying relative importance, nor as a restriction on the order of events.

[0032] This utility model provides a transformer, including a first winding 11 and a second winding 12 and a third winding 13 located on both sides of the first winding 11. The first winding 11 includes a symmetrical magnetic core 111 and a coil element 112 connected within the symmetrical magnetic core 111. The magnetic core 111 includes a first magnetic plate 1111 and a second magnetic plate 1112 connected to one end of the first magnetic plate 1111. The second magnetic plate 1112 is located on one side of the lead of the coil element 112. When the symmetrical magnetic core 111 is closed, it adheres to the second magnetic plate 1112 on one side of the coil element 112 to absorb dissipated magnetism. The first winding 11, the second winding 12, and the third winding 13 are used for... Transmitting electrical energy and achieving voltage rise and fall, during the operation of a transformer, when the internal load of the transformer is unbalanced and the current on different phases is inconsistent, uneven magnetization current will occur, which will cause magnetic flux deviation and lead to demagnetization. The demagnetization will emanate along the pins of coil component 112. Since the symmetrical second magnetic plate 1112 is attached to form a shield, when the demagnetization is emitted in the direction of the pins of coil component 112, it is absorbed by the second magnetic plate 1112, effectively isolating the demagnetization from emanating in the direction of the pins of coil component 112, thereby preventing the demagnetization from being refracted to the outside and cutting off external components, effectively ensuring the performance and service life of external components.

[0033] The first winding 11 is also provided with a frame 113, and the coil 112 is wound on the frame 113. The frame 113 is used to fix the coil 112, and the coil 112 is connected to the magnetic core 111 through the frame 113.

[0034] The center of the second magnetic plate 1112 is also provided with a third magnetic plate 1113 for fixing the skeleton 113. The third magnetic plate 1113 is used to snap the skeleton 113, so that the skeleton 113 can be fixed in the symmetrical magnetic core 111.

[0035] The transformer is also provided with a housing 14, in which the first winding 11, the second winding 12, and the third winding 13 are all located. The housing 14 is used to facilitate heat dissipation of the first winding 11, the second winding 12, and the third winding 13. When the transformer is potted with glue, the heat of the first winding 11, the second winding 12, and the third winding 13 is transferred to the housing 14 and dissipated through the housing 14.

[0036] Please refer to Figure 4 The housing 14 is also provided with an opening at one end, and multiple water channels extending along the height of the housing 14 are provided inside the housing 14. The two ends of the water channels are an inlet 141 and an outlet 142, respectively. The inlet 141 is used to facilitate the entry of cooling water into the water channel of the housing 14. After cooling the housing 14, the cooling water flows out from the outlet 142 of the housing 14, so that new cooling water can enter the water channel from the inlet 141 to cool the housing 14, thereby cooling the first winding 11, the second winding 12, and the third winding 13.

[0037] A mounting component 15 with a closed opening is also provided on one side of the housing 14. The two ends of the mounting component 15 are respectively provided with a water inlet channel 151 communicating with the water inlet 141 and a water outlet channel 152 communicating with the water outlet 142. The mounting component 15 is connected to the opening of the housing 14 to close the opening. The mounting component 15 facilitates the connection of external equipment and facilitates the entry of external cooling water into the water inlet channel 151. The water inlet channel 151 is connected to the water inlet 141 to facilitate the entry of external cooling water into the water channel. At the same time, the water outlet channel 152 is connected to the water outlet 142. When the water that dissipates heat from the housing 14 flows out from the water outlet 142 and into the water outlet channel 152, it is convenient for the cooled water to flow out from the water outlet channel 152.

[0038] The transformer is also provided with a first base, and the first winding 11 and the second winding 12 are both connected to the first base. The first base is used to fix the first winding 11 and the second winding 12 and prevent the first winding 11 and the second winding 12 from separating.

[0039] Please refer to Figure 5 The bottom of the third winding 13 is also provided with a second base 131 for fixing the third winding 13. The second base 131 is used to fix the third winding 13 and prevent the third winding 13 from being dispersed, so that the third winding 13 forms a whole.

[0040] The top of the second base 131 is provided with a skirt 132 for limiting the third winding 13. The skirt 132 is used to limit the third winding 13 and prevent the third winding 13 from shaking inside the second base 131. At the same time, it is also convenient to fix the third winding 13 on the second base 131.

[0041] The bottom of the housing 14 is also provided with multiple positioning holes 143. Both sides of the first base and the third winding 13 are provided with multiple positioning posts 133 that match the positioning holes 143. The positioning posts 133 are used to position the positioning holes 143 of the housing 14, which facilitates the efficiency of assembling the transformer.

[0042] Working principle:

[0043] When a transformer is in operation, if the internal load is unbalanced and the current magnitudes on different phases are inconsistent, uneven magnetization current will occur, leading to magnetic flux deviation and demagnetization. The demagnetization generated by the first winding 11 diffuses towards the pins of the coil component 112. Due to the action of the second magnetic plate 1112 of the magnetic core 111, the symmetrical second magnetic plates 1112 of the magnetic core 111 adhere together to form a shielding plate and absorb the demagnetization, thereby preventing the demagnetization from spreading towards the pins of the coil component 112 and avoiding the demagnetization from being refracted to the outside and cutting external components. At the same time, when potting the transformer, the heat generated by the first winding 11, the second winding 12, and the third winding 13 is conducted to the casing. On 14, the mounting part 15 is connected to the external equipment. The external equipment delivers cooling water to the water inlet channel 151. Since the water inlet 141 of the water channel is connected to the water inlet channel 151, the cooling water in the water inlet channel 151 enters the water channel through the water inlet 141 and dissipates heat from the housing 14. The cooling water that has dissipated heat from the housing 14 flows out from the water outlet 142 of the water channel. Since the water outlet 142 of the water channel is connected to the water outlet channel 152, the water that has dissipated heat flows from the water outlet 142 into the water outlet channel 152 and flows into the external equipment, thereby effectively dissipating heat from the housing 14. At the same time, it can also effectively dissipate heat from the first winding 11, the second winding 12, and the third winding 13.

[0044] When the transformer in this preferred embodiment experiences an unbalanced internal load, the magnetizing current becomes uneven, leading to demagnetization. This demagnetization spreads towards the leads of the coil components. However, due to the symmetrical magnetic cores closing together, the second magnetic plate forms a shield and absorbs the demagnetization, thus preventing it from spreading towards the leads of the coil components. This avoids the demagnetization from being refracted to the outside and cutting off external components, effectively ensuring the performance and service life of external components.

[0045] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. A transformer, characterized by The transformer comprises a first winding and a second winding and a third winding located on both sides of the first winding respectively, the first winding comprises symmetrical magnetic cores and coil pieces connected in the symmetrical magnetic cores, the magnetic cores comprise a first magnetic plate and a second magnetic plate connected to one end of the first magnetic plate, the second magnetic plate is located on one side of the pin of the coil piece, and the second magnetic plate is attached to one side of the coil piece to absorb stray magnetic field when the symmetrical magnetic cores are closed.

2. The transformer of claim 1, wherein, The first winding is further provided with a framework, and the coil piece is wound on the framework.

3. The transformer of claim 2, wherein, A third magnetic plate is further arranged at the center of the second magnetic plate to fix the framework.

4. The transformer of claim 1, wherein, The transformer is further provided with a shell, and the first winding, the second winding and the third winding are located in the shell.

5. The transformer of claim 4, wherein, One end of the shell is further provided with an opening, and a plurality of water channels extending along the height direction of the shell are further arranged in the shell, and the two ends of the water channel are respectively an inlet and an outlet.

6. The transformer of claim 5, wherein, One side of the shell is further provided with a mounting piece for closing the opening, and the two ends of the mounting piece are respectively provided with a water inlet channel communicated with the water inlet and a water outlet channel communicated with the water outlet.

7. The transformer of claim 4, wherein, The transformer is further provided with a first base, and the first winding and the second winding are connected to the first base.

8. The transformer of claim 7, wherein, The bottom of the third winding is further provided with a second base for fixing the third winding.

9. The transformer of claim 8, wherein, The top of the second base is provided with a skirt for limiting the third winding.

10. The transformer of claim 8, wherein, The bottom of the shell is further provided with a plurality of positioning holes. The two sides of the first base and the second base are both provided with a plurality of positioning columns matched with the positioning holes.

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