Planar transformer, power supply and satellite thruster

Abstract

The utility model discloses a planar transformer, a power supply and a satellite thruster. Wherein the planar transformer comprises a first magnetic core, a second magnetic core and a circuit board matched with the first magnetic core and the second magnetic core; the planar transformer further comprises a first bonding layer for fixing the relative positions of the first magnetic core and the second magnetic core, and the first bonding layer is arranged to enable a gap to exist between the opposite surfaces of the first magnetic core and the second magnetic core. A second bonding layer is arranged between the first magnetic core and / or the second magnetic core and the circuit board, and the thickness of the second bonding layer is set to enable the circuit board to be located at a target position. According to the planar transformer, a gap can be formed between the opposite surfaces of the first magnetic core and the second magnetic core through the first bonding layer, so that the breath stability during operation of the planar transformer is ensured. The second bonding layer can fix the circuit board at a target position so as to optimize the operation performance of the planar transformer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electrical component technical field, concretely relates to a planar transformer, power supply and satellite thruster. BACKGROUND

[0002] The transformer is a key element in the power supply. The traditional transformer is usually composed of ferrite core and copper coil, which is bulky and easy to produce electromagnetic interference. The planar transformer can effectively solve the volume and high frequency problems. The biggest difference between the planar transformer and the traditional transformer lies in the core and the coil winding. The planar transformer adopts small size E type, RM type or ring type ferrite core, which is usually made of high frequency power ferrite material, and has low core loss at high frequency; The winding is made of multi-layer printed circuit board, and the winding or copper sheet is stacked on the planar high frequency core to form the magnetic circuit of the transformer. This design has low DC copper resistance, low leakage inductance and distributed capacitance, which can meet the design requirements of the resonant circuit. In the prior art, the magnetic core and the magnetic core, the magnetic core and the circuit board cannot be quickly installed during assembly, and it is impossible to ensure that the planar transformer meets the design requirements.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a planar transformer, power supply and satellite thruster. INVENTION CONTENTS

[0004] The utility model discloses a planar transformer, power supply and satellite thruster, which can solve the problem that the magnetic core and the magnetic core, the magnetic core and the circuit board of the planar transformer cannot be quickly installed.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a planar transformer, and the technical scheme is as follows:

[0006] A planar transformer comprises a first magnetic core, a second magnetic core and a circuit board installed in cooperation with the first magnetic core and the second magnetic core; the planar transformer further comprises a first adhesive layer for fixing the relative position of the first magnetic core and the second magnetic core, and the thickness of the first adhesive layer is set to make there be a gap between the opposite surfaces of the first magnetic core and the second magnetic core; a second adhesive layer is arranged between the first magnetic core and / or the second magnetic core and the circuit board, and the thickness of the second adhesive layer is set to make the circuit board be at a target position.

[0007] In one or more embodiments of the utility model, the first magnetic core comprises a base plate, two side columns arranged on the same side of the base plate, and a middle column located between the two side columns; the second magnetic core is located on the side of the side column or the middle column away from the base plate, and the first adhesive layer is arranged in cooperation with the two side columns or the middle column.

[0008] In one or more embodiments of the utility model, the first adhesive layer is arranged between the opposite surfaces of the second magnetic core and the two side columns.

[0009] The first adhesive layer is arranged between the opposite surfaces of the second magnetic core and the two side columns.

[0010] In one or more embodiments of the utility model, the first adhesive layer is arranged between the opposite surfaces of the second magnetic core and the two side columns, and / or,

[0011] The first adhesive layer is arranged on the adjacent interconnection side surfaces of the second magnetic core and the two side columns, and the interconnection side surfaces are the side surfaces of the two side columns away from the middle column.

[0012] In one or more embodiments of the utility model, the circuit board is provided with an assembly hole corresponding to the assembly hole, and the two side columns and the middle column are arranged in the assembly hole, and the second adhesive layer is arranged between the opposite surfaces of the second magnetic core and the circuit board, or the second adhesive layer is arranged between the opposite surfaces of the substrate of the first magnetic core and the circuit board.

[0013] In one or more embodiments of the utility model, the second adhesive layer is also arranged between the side column and the middle column.

[0014] In one or more embodiments of the utility model, the second adhesive layer is arranged at least two, and the second adhesive layer is symmetrically arranged relative to the middle column.

[0015] In one or more embodiments of the utility model, one surface of the second magnetic core close to the first magnetic core is arranged as a plane.

[0016] The utility model provides a kind of power supply in one specific embodiment, and technical solutions are as follows:

[0017] A kind of power supply, including power supply shell and install in the power supply shell as above described planar transformer, the first magnetic core and / or second magnetic core of the planar transformer is connected with the heat conduction layer between the power supply shell.

[0018] The utility model provides a satellite thruster in one specific embodiment, and technical solutions are as follows:

[0019] A kind of satellite thruster, including heat sink and with as above described power supply being attached and arranged.

[0020] Compared with the prior art, the planar transformer in the assembling process can be quickly fixed through the first adhesive layer and the second adhesive layer. The thickness of the first adhesive layer can reserve the gap between the opposite surfaces of the first magnetic core and the second magnetic core, so as to ensure the breath stability of the planar transformer during operation. The thickness of the second adhesive layer can position the circuit board at the target position, so as to optimize the operation performance of the planar transformer. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0022] Figure 1 It is a structural schematic view of the first magnetic core and the second magnetic core in an embodiment of the present application.

[0023] Figure 2 It is a structural schematic view of the planar transformer in embodiment 1 and embodiment 2 of the present application.

[0024] Figure 3 It is a structural schematic view of the planar transformer in embodiment 3 and embodiment 4 of the present application.

[0025] Figure 4 It is a structural schematic view of the planar transformer in embodiment 5 and embodiment 6 of the present application.

[0026] Figure 5 It is a structural schematic view of the satellite thruster in an embodiment of the present application.

[0027] MAIN REFERENCE NUMERALS:

[0028] 1, first magnetic core; 11, base plate; 12, side column; 13, middle column; 2, second magnetic core; 3, circuit board; 4, first adhesive layer; 5, second adhesive layer; 6, power supply shell; 7, heat conduction layer; 8, heat dissipation plate. DETAILED DESCRIPTION

[0029] In order to make the technical scheme in the present application more comprehensible to those skilled in the art, the technical scheme in the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0030] With reference to Figures 1 to 4 An embodiment of the present application provides a planar transformer, which comprises a first magnetic core 1, a second magnetic core 2 and a circuit board 3 cooperatively installed with the first magnetic core 1 and the second magnetic core 2. The planar transformer further comprises a first adhesive layer 4 for fixing the relative positions of the first magnetic core 1 and the second magnetic core 2, and the thickness of the first adhesive layer 4 is set to make a gap exist between the opposite surfaces of the first magnetic core 1 and the second magnetic core 2. A second adhesive layer 5 is arranged between the first magnetic core 1 and / or the second magnetic core 2 and the circuit board 3, and the thickness of the second adhesive layer 5 is set to make the circuit board 3 be at a target position. The first adhesive layer 4 and the second adhesive layer 5 can be formed by cooperating dispensing between the first magnetic core 1, the second magnetic core 2 and the circuit board 3.

[0031] With reference to Figures 1 to 4 The first magnetic core 1 comprises a substrate 11, two side columns 12 arranged on the same side of the substrate 11, and a middle column 13 located between the two side columns 12. The second magnetic core 2 is located on the side of the side column 12 or the middle column 13 away from the substrate 11, and the first adhesive layer 4 is cooperatively arranged on the two side columns 12 or the middle column 13. When the first adhesive layer 4 is arranged on the two side columns 12, a gap exists between the opposite surfaces of the second magnetic core 2 and the middle column 13; when the first adhesive layer 4 is arranged on the middle column 13, a gap exists between the opposite surfaces of the second magnetic core 2 and the two side columns 12. By setting the thickness of the first adhesive layer 4, a gap can exist between the opposite surfaces of the first magnetic core 1 and the second magnetic core 2, thereby ensuring the stability of the air in the operation of the planar transformer. It can be understood that controlling the thickness of the first adhesive layer 4 can control the size of the gap between the opposite surfaces of the second magnetic core 2 and the side column 12 or the middle column 13.

[0032] With reference to Figures 1 to 4 The circuit board 3 is correspondingly provided with an assembly hole, the two side columns 12 and the middle column 13 are arranged in the assembly hole, and the second adhesive layer 5 is located between the opposite surfaces of the second magnetic core 2 and the circuit board 3; or the second adhesive layer 5 is located between the opposite surfaces of the substrate 11 of the first magnetic core 1 and the circuit board 3. The target position of the above-mentioned circuit board 3 is a position at which the circuit board 3 has a designed relative distance from the first magnetic core 1 or the second magnetic core 2, so as to optimize the operation performance of the planar transformer.

[0033] With reference to Figures 1 to 4In an optional embodiment, one face of the second magnetic core 2 close to the first magnetic core 1 is arranged as a plane, so as to facilitate the first adhesive layer 4 to fixedly connect the first magnetic core 1 and the second magnetic core 2, and to make a gap exist between the opposite surfaces of the first magnetic core 1 and the second magnetic core 2. In this embodiment, the second magnetic core 2 can be arranged as an "I" shaped magnetic core, and the first magnetic core 1 can be arranged as an "E" shaped magnetic core.

[0034] Further, referring to Figure 1 and Figure 2 , the area of the vertical projection of the second magnetic core 2 on the circuit board 3 is greater than the area of the vertical projection of the first magnetic core 1 on the circuit board 3. By setting the relative size of the first magnetic core 1 and the second magnetic core 2, the first magnetic core 1 can cover the second magnetic core 2, and the influence of the machining tolerance on the assembly and operation of the planar transformer can be reduced.

[0035] The above is the overall concept of the present application, and the following provides detailed embodiments based thereon to further illustrate the present application.

[0036] Embodiment 1

[0037] Referring to FIG. a in Figure 2 , in this embodiment, the first adhesive layer 4 is arranged in the middle column 13, and a gap exists between the opposite surfaces of the second magnetic core 2 and the two side columns 12. Specifically, the first adhesive layer 4 is located between the opposite surfaces of the second magnetic core 2 and the middle column 13. The first adhesive layer 4 can cover one face of the middle column 13 away from the base plate 11, for ensuring the stability of the adhesion between the first magnetic core 1 and the second magnetic core 2.

[0038] Referring to FIG. a in Figure 2 , the second adhesive layer 5 is located between the opposite surfaces of the second magnetic core 2 and the circuit board 3. Specifically, the second adhesive layer 5 is also located between the side column 12 and the middle column 13. The second adhesive layer 5 is provided with at least two, and the second adhesive layer 5 is symmetrically arranged relative to the middle column 13. In this embodiment, the second adhesive layer 5 is provided with two, and is symmetrically arranged relative to the middle column 13, for ensuring the stability of the adhesion between the second magnetic core 2 and the circuit board 3.

[0039] Embodiment 2

[0040] Referring to FIG. b in Figure 2 , the difference between this embodiment and Embodiment 1 is that the second adhesive layer 5 is located between the opposite surfaces of the base plate 11 of the first magnetic core 1 and the circuit board 3. Similarly, the second adhesive layer 5 of this embodiment can also be provided with two, and is symmetrically arranged relative to the middle column 13, for ensuring the stability of the adhesion between the second magnetic core 2 and the circuit board 3.

[0041] Embodiment 3

[0042] Referring to FIG. a in Figure 3In the c drawing of FIG. 1, the first adhesive layer 4 is arranged on the two side columns 12, and a gap exists between the opposite surfaces of the second magnetic core 2 and the middle column 13. Specifically, the first adhesive layer 4 is located between the opposite surfaces of the second magnetic core 2 and the two side columns 12. The first adhesive layer 4 can cover the side of the side column 12 away from the substrate 11, so as to ensure the stability of the adhesion between the first magnetic core 1 and the second magnetic core 2.

[0043] Referring to Figure 3 In the c drawing of FIG. 1, the first adhesive layer 4 is arranged on the two side columns 12, and a gap exists between the opposite surfaces of the second magnetic core 2 and the middle column 13. Specifically, the first adhesive layer 4 is located between the opposite surfaces of the second magnetic core 2 and the two side columns 12. The first adhesive layer 4 can cover the side of the side column 12 away from the substrate 11, so as to ensure the stability of the adhesion between the first magnetic core 1 and the second magnetic core 2.

[0044] Embodiment 4

[0045] Referring to Figure 3 In the d drawing of FIG. 1, the difference between the present embodiment and the embodiment 3 is that the second adhesive layer 5 is located between the substrate 11 of the first magnetic core 1 and the circuit board 3. Similarly, the second adhesive layer 5 of the present embodiment can also be provided with two, and is symmetrically arranged with respect to the middle column 13, so as to ensure the stability of the adhesion between the second magnetic core 2 and the circuit board 3.

[0046] Embodiment 5

[0047] Referring to Figure 4 In the e drawing of FIG. 1, the difference between the present embodiment and the embodiment 3 is that the first adhesive layer 4 is located on the interconnection side surface adjacent to the two side columns 12, and the interconnection side surface is the side of the two side columns 12 away from the middle column 13.

[0048] Embodiment 6

[0049] Referring to Figure 4 In the f drawing of FIG. 1, the difference between the present embodiment and the embodiment 4 is that the first adhesive layer 4 is located on the interconnection side surface adjacent to the two side columns 12, and the interconnection side surface is the side of the two side columns 12 away from the middle column 13.

[0050] The above is a part of the exemplary embodiments, and in other embodiments, the second adhesive layer 5 can also be arranged between the opposite surfaces of the second magnetic core 2 and the circuit board 3, and between the opposite surfaces of the substrate 11 of the first magnetic core 1 and the circuit board 3, so as to ensure the adhesion stability of the circuit board 3 and ensure that the circuit board 3 is located at the target position. Among them, the operator can select different specific embodiments to assemble the planar transformer of the present application according to the actual operation space and design requirements.

[0051] Referring to Figure 5The utility model discloses an embodiment provides a kind of power supply, including power supply shell 6 and install in the power supply shell 6 as above the planar transformer, the first magnetic core 1 of planar transformer and / or second magnetic core 2 are connected with the heat conduction layer 7 between power supply shell 6.This embodiment, heat conduction layer 7 can be formed by heat-conducting glue, it can also be set as heat-conducting gasket, for the heat dissipation of planar transformer, to ensure its operating performance.Wherein, the first magnetic core 1 of this embodiment and second magnetic core 2 are connected with the heat conduction layer 7 between power supply shell 6.

[0052] With reference to Figure 5 The utility model discloses an embodiment provides a kind of power supply satellite thruster, including heat sink 8 and with heat sink 8 as above the power supply of adhesion arrangement.It can be understood, satellite thruster with the above-mentioned power supply can be cooled to power supply in time by heat sink 8, further to the planar transformer in power supply is cooled, so as to improve the performance of planar transformer operation.

[0053] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A planar transformer, characterized by The planar transformer comprises a first magnetic core (1), a second magnetic core (2), and a circuit board (3) installed in cooperation with the first magnetic core (1) and the second magnetic core (2); The planar transformer further comprises a first adhesive layer (4) for fixing the relative positions of the first magnetic core (1) and the second magnetic core (2), wherein the thickness of the first adhesive layer (4) is set to allow a gap between the opposite surfaces of the first magnetic core (1) and the second magnetic core (2); A second adhesive layer (5) is arranged between the first magnetic core (1) and / or the second magnetic core (2) and the circuit board (3), and the thickness of the second adhesive layer (5) is set to allow the circuit board (3) to be in a target position.

2. The planar transformer according to claim 1, characterized in that The first magnetic core (1) comprises a base plate (11), two side columns (12) arranged on the same side of the base plate (11), and a middle column (13) located between the two side columns (12); the second magnetic core (2) is located on the side of the side column (12) or the middle column (13) away from the base plate (11), and the first adhesive layer (4) is arranged in cooperation with the two side columns (12) or the middle column (13).

3. The planar transformer according to claim 2, characterized in that When the first adhesive layer (4) is arranged between the two side columns (12), a gap is formed between the opposite surfaces of the second magnetic core (2) and the middle column (13); When the first adhesive layer (4) is arranged on the middle column (13), a gap is formed between the opposite surfaces of the second magnetic core (2) and the two side columns (12).

4. The planar transformer according to claim 2, characterized in that, The first adhesive layer (4) is located between the opposite surfaces of the second magnetic core (2) and the two side columns (12), and / or The first adhesive layer (4) is located on the adjacent interconnection side surfaces of the second magnetic core (2) and the two side columns (12), and the interconnection side surfaces are the side surfaces of the two side columns (12) away from the middle column (13).

5. The planar transformer of claim 2, wherein, The circuit board (3) is provided with a mounting hole corresponding thereto, the two side columns (12) and the middle column (13) are arranged in the mounting hole, and the second adhesive layer (5) is located between the opposite surfaces of the second magnetic core (2) and the circuit board (3); or the second adhesive layer (5) is located between the base plate (11) of the first magnetic core (1) and the circuit board (3).

6. The planar transformer according to claim 5, characterized in that The second adhesive layer (5) is also located between the side column (12) and the middle column (13).

7. The planar transformer of claim 5, wherein, The second adhesive layer (5) is provided with at least two second adhesive layers (5), and the second adhesive layers (5) are symmetrically arranged relative to the middle column (13).

8. The planar transformer of claim 2, wherein, The surface of the second magnetic core (2) close to the first magnetic core (1) is provided as a plane.

9. A power supply, characterized by, The power supply shell (6) and the planar transformer as claimed in any one of claims 1-8 installed in the power supply shell (6) are provided, and a heat-conducting layer (7) is connected between the first magnetic core (1) and / or the second magnetic core (2) of the planar transformer and the power supply shell (6).

10. A satellite thruster, characterized by The power supply comprises a heat dissipation plate (8) and the power supply as claimed in claim 9 arranged in cooperation with the heat dissipation plate (8).

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