High-power high-density patch transformer

Abstract

The utility model discloses a high-power high-density patch transformer which comprises a main body unit, the main body unit comprises a lower fixing piece, a coil is installed on the upper side surface of the lower fixing piece, and an upper fixing piece is installed on the upper side surface of the coil. According to the utility model, the sealing shell I and the sealing shell II are pushed to slide between the lower fixing piece and the upper fixing piece, so that the sealing shell I and the sealing shell II are sleeved on the surface of the coil while the sealing shell I and the sealing shell II are tightly attached, and then the rotating plate rotates between the fixing blocks I under the torsion action of the torsion spring; the rotating plate drives the clamping groove to rotate towards the second sealing shell, the clamping groove and the clamping strip are clamped, then the positions of the first sealing shell and the second sealing shell are locked, the coil is packaged, deformation and loosening under the high-temperature and high-pressure conditions are avoided, the structure is simple, and operation is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the technical field of surface mount transformers, and more particularly to a high-power, high-density surface mount transformer. Background Technology

[0002] High-power, high-density surface mount transformers are a special type of transformer with high power density and high withstand voltage. They encapsulate the coil and core into a single unit, resulting in a compact structure and small footprint. They are mainly used in the power electronics field, especially in applications requiring miniaturization and high efficiency.

[0003] Existing patent publication number CN2 (201) 71896U discloses a high-power, high-density surface mount transformer, relating to the field of surface mount transformer technology. It includes a magnetic core and a protective assembly. The outer side of the magnetic core is coated with insulating varnish, and a primary coil is located on the outer side of the left end of the magnetic core, while a secondary coil is located on the outer side of the right end. The protective assembly, used to improve withstand voltage performance, is located on the outer side of the primary and secondary coils. The protective assembly includes a polyamide film layer, an epoxy resin layer, and a glass fiber layer. This high-power, high-density surface mount transformer utilizes a toroidal manganese-zinc power ferrite core, which leverages its high saturation magnetic flux density. The core employs a gapless design to reduce magnetic flux leakage, and the insulating varnish enhances the core's insulation performance. Furthermore, the multiple insulation structure formed by the polyamide film layer, epoxy resin layer, and glass fiber layer improves the withstand voltage performance of the primary and secondary coils, meeting the high-power requirements of surface mount transformers.

[0004] Existing technology uses the engagement of bumps and through holes to enable quick assembly and fixation of the bottom shell and top cover. However, high-power, high-density surface mount transformers generate a lot of heat during operation, causing high temperature and high pressure conditions inside the bottom shell and top cover. The bumps are at risk of deforming and loosening under the influence of high temperature. At the same time, high temperature and high pressure can also cause the coils to burn out, which can lead to a fire. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problems existing in the current high-power, high-density patch transformer, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a high-power, high-density surface mount transformer, which solves the problem that "existing technology uses protrusions and through holes to engage, so that the bottom shell and top cover can be quickly assembled and fixed. However, high-power, high-density surface mount transformers generate a lot of heat during operation, which leads to high temperature and high pressure inside the bottom shell and top cover. The protrusions are at risk of deformation and loosening under the influence of high temperature. At the same time, high temperature and high pressure can also cause the coil to burn out, which can lead to a fire."

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A high-power, high-density surface-mount transformer, comprising:

[0010] The main body unit includes a lower component, on the upper surface of which a coil is mounted, and on the upper surface of which an upper component is mounted.

[0011] The envelope unit includes a first envelope and a second envelope fitted onto the surface of the upper component. The lower surfaces of the first envelope and the second envelope are movably connected to the lower component, and the upper surfaces of the first envelope and the second envelope are movably connected to the upper component. The surfaces of the first envelope and the second envelope that are close to each other are movably connected. Two sets of fixing blocks are fixedly connected to both sides of the first envelope, and a rotating plate is rotatably connected between the fixing blocks. The surfaces of the two sets of rotating plates that are close to each other are provided with slots, and the inner walls of the slots are engaged with locking strips. The locking strips are fixedly connected to the second envelope, and the two ends of the locking strips are fixedly connected to the second fixing blocks. Each set of fixing blocks has a spring groove on the surface of the first fixing block that is close to the rotating plate, and a torque component is provided inside the spring groove.

[0012] As a preferred embodiment of the high-power, high-density surface mount transformer of this utility model, each set of torque components includes a rotating rod rotatably connected to a fixed block, and a torsion spring is sleeved on the surface of the rotating rod. One end of each set of rotating rods is fixedly connected to a rotating plate, one end of each set of torsion springs is fixedly connected to the rotating plate, and the other end of each set of torsion springs is fixedly connected to the inner wall surface of the spring groove.

[0013] As a preferred embodiment of the high-power, high-density surface-mount transformer of this utility model, wherein: a limiting block is fixedly connected to one phase-opposite side surface of each group of fixed blocks, and the limiting block is slidably connected to the upper and lower fixing components; a limiting block is fixedly connected to two phase-opposite side surfaces of each group of fixed blocks, and the limiting block is slidably connected to the upper and lower fixing components.

[0014] In a preferred embodiment of the high-power, high-density surface mount transformer described in this utility model, a lever is fixedly connected to one side of each of the two sets of rotating plates facing away from each other, and the levers are all located in the middle area of ​​the rotating plates.

[0015] As a preferred embodiment of the high-power, high-density patch transformer of this utility model, wherein: a through hole is provided on one side surface of the first casing, and a round cover is rotatably connected to the inner wall surface of the through hole.

[0016] As a preferred embodiment of the high-power, high-density surface-mount transformer of this utility model, a groove is provided on one side surface of the circular cover, and a slider is slidably connected inside the groove, and a counterweight is fixedly connected to one side surface of the slider.

[0017] The beneficial effects of this utility model are:

[0018] 1. Push the first and second covers to slide between the lower and upper components, so that the first and second covers fit tightly together and are fitted onto the surface of the coil. Then, under the torque of the torsion spring, the rotating plate rotates between the fixed blocks, causing the rotating plate to drive the slot to rotate towards the second cover, so that the slot engages with the clip, thereby locking the position of the first and second covers and encapsulating the coil. This prevents deformation and loosening under high temperature and high pressure, and the structure is simple and easy to operate.

[0019] 2. By providing through holes, when the inside of the first and second shells is under high temperature and pressure due to the operation of the upper component, the round cover will rotate on the inner wall surface of the through hole under high pressure, so that the through hole can open to dissipate heat and pressure, effectively improving safety. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0021] Figure 1 The above is a three-dimensional structural diagram of a high-power, high-density patch transformer proposed in this utility model.

[0022] Figure 2 for Figure 1 A three-dimensional exploded diagram;

[0023] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B.

[0025] In the diagram: 100, Main unit; 101, Lower component; 102, Coil; 103, Upper component; 200, Enclosure unit; 201, Enclosure 1; 202, Enclosure 2; 203, Fixing block 1; 204, Rotating plate; 205, Slot; 206, Clip; 207, Fixing block 2; 208, Spring slot; 209, Torque assembly; 209a, Rotating rod; 209b, Torque spring; 210, Limiting block; 211, Paddle; 212, Through hole; 213, Round cover; 214, Slide groove; 215, Slider; 216, Counterweight. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0030] Reference Figure 1-4 This utility model provides a high-power, high-density surface mount transformer, comprising:

[0031] The main body unit 100 includes a lower component 101, a coil 102 is mounted on the upper surface of the lower component 101, and an upper component 103 is mounted on the upper surface of the coil 102.

[0032] The envelope unit 200 includes a first envelope 201 and a second envelope 202 fitted onto the surface of the upper fastener 103. The lower surfaces of the first envelope 201 and the second envelope 202 are movably connected to the lower fastener 101, and the upper surfaces of the first envelope 201 and the second envelope 202 are movably connected to the upper fastener 103. The surfaces of the first envelope 201 and the second envelope 202 that are close to each other are movably connected. Two sets of fixing blocks 203 are fixedly connected to both sides of the first envelope 201, and a rotating plate 204 is rotatably connected between the fixing blocks 203. The surfaces of the two sets of rotating plates 204 that are close to each other are provided with slots 205, and the inner walls of the slots 205 are engaged with locking strips 206. Both sets of 206 are fixedly connected to the second set of cover 202. Both ends of the two sets of clips 206 are fixedly connected to the second set of fixing blocks 207. Each set of fixing blocks 203 has a spring groove 208 on the side surface near the rotating plate 204. The spring groove 208 is provided with a torque component 209, which pushes the first set of cover 201 and the second set of cover 202 to slide and fit between the lower fixer 101 and the upper fixer 103, so that the first set of cover 201 and the second set of cover 202 are fitted on the surface of the coil 102. At the same time, the rotating plate 204, which is rotatably connected to the first set of fixing blocks 203, rotates towards the second set of cover 202, so that the clip 205 engages with the clip 206, thereby fixing the first set of cover 201 and the second set of cover 202.

[0033] Each set of torque components 209 includes a rotating rod 209a rotatably connected to the fixed block 203, and a torsion spring 209b is sleeved on the surface of the rotating rod 209a. One end of each set of rotating rods 209a is fixedly connected to the rotating plate 204, one end of each set of torsion springs 209b is fixedly connected to the rotating plate 204, and the other end of each set of torsion springs 209b is fixedly connected to the inner wall surface of the spring groove 208. Through the torsion of the torsion springs 209b, the rotating plate 204 is rotated towards the locking strip 206, thereby locking the locking groove 205 and the locking strip 206.

[0034] Furthermore, each set of fixing blocks 203 has a limiting block 210 fixedly connected to the opposite side surface, and the limiting block 210 is slidably connected to the upper firmware 103 and the lower firmware 101. Each set of fixing blocks 207 has a limiting block 210 fixedly connected to the opposite side surface, and the limiting block 210 is slidably connected to the upper firmware 103 and the lower firmware 101, which can limit the sliding of the first cover 201 and the second cover 202.

[0035] Furthermore, each of the two sets of rotating plates 204 has a paddle 211 fixedly connected to one side of the opposing locking strip 206, and the paddle 211 is located in the middle area of ​​the rotating plate 204. Pressing the paddle 211 can make the rotating plate 204 rotate between the first fixed block 203, so that the locking groove 205 and the locking strip 206 are disengaged, making it easy to disassemble the first sealing shell 201 and the second sealing shell 202.

[0036] Furthermore, a through hole 212 is provided on one side surface of the first shell 201, and a round cover 213 is rotatably connected to the inner wall surface of the through hole 212. Under the conditions of high temperature and high pressure inside the first shell 201 and the second shell 202, the round cover 213 is pushed by the high pressure to rotate and open inside the through hole 212, thereby dissipating heat and releasing pressure.

[0037] Furthermore, a groove 214 is provided on one side surface of the round cover 213, and a slider 215 is slidably connected inside the groove 214. A counterweight 216 is fixedly connected to one side surface of the slider 215. After the heat dissipation and pressure relief are completed, the counterweight 216 can drive the round cover 213 to rotate downward, so that the round cover 213 can close the through hole 212.

[0038] During use, the first cover 201 and the second cover 202 are pushed to slide between the lower fixture 101 and the upper fixture 103, so that the first cover 201 and the second cover 202 fit tightly together and are sleeved on the surface of the coil 102. Then, under the torque of the torsion spring 209b, the rotating plate 204 rotates between the fixed block 1 203, so that the rotating plate 204 drives the slot 205 to rotate in the direction of the second cover 202, so that the slot 205 engages with the slot strip 206, thereby locking the position of the first cover 201 and the second cover 202 and encapsulating the coil 102. By providing a through hole 212, when the inside of the first cover 201 and the second cover 202 is in a state of high temperature and high pressure due to the operation of the upper fixture 103, the round cover 213 will rotate on the inner wall surface of the through hole 212 under high pressure, so that the through hole 212 can open to dissipate heat and pressure.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-power, high-density surface-mount transformer, characterized in that: include: The main body unit (100) includes a lower component (101), on the upper surface of the lower component (101) a coil (102) is mounted, and on the upper surface of the coil (102) an upper component (103) is mounted. The envelope unit (200) includes a first envelope (201) and a second envelope (202) fitted onto the surface of the upper component (103). The lower surfaces of the first envelope (201) and the second envelope (202) are movably connected to the lower component (101), and the upper surfaces of the first envelope (201) and the second envelope (202) are movably connected to the upper component (103). The surfaces of the first envelope (201) and the second envelope (202) that are close to each other are movably connected. Two sets of fixing blocks (203) are fixedly connected to both sides of the first envelope (201), and the fixing blocks (203) are... Rotating plates (204) are rotatably connected between the two sets of rotating plates (204). The surfaces of the two sets of rotating plates (204) that are close to each other are provided with slots (205), and the inner walls of the slots (205) are connected with clips (206). The two sets of clips (206) are fixedly connected to the second cover (202). The two ends of the two sets of clips (206) are fixedly connected with the second fixing block (207). The surface of the first fixing block (203) of each set that is close to the rotating plate (204) is provided with a spring groove (208), and the inside of the spring groove (208) is provided with a torque component (209).

2. The high-power, high-density surface-mount transformer according to claim 1, characterized in that: Each set of torque components (209) includes a rotating rod (209a) rotatably connected to a fixed block (203), and a torsion spring (209b) is fitted on the surface of the rotating rod (209a). One end of each set of rotating rods (209a) is fixedly connected to a rotating plate (204), one end of each set of torsion springs (209b) is fixedly connected to the rotating plate (204), and the other end of each set of torsion springs (209b) is fixedly connected to the inner wall surface of a spring groove (208).

3. A high-power, high-density surface-mount transformer according to claim 2, characterized in that: Each set of fixed blocks (203) has a limiting block (210) fixedly connected to the opposite side surface of each set of fixed blocks (207), and the limiting block (210) is slidably connected to the upper component (103) and the lower component (101). Each set of fixed blocks (207) has a limiting block (210) fixedly connected to the opposite side surface of each set of fixed blocks (207), and the limiting block (210) is slidably connected to the upper component (103) and the lower component (101).

4. A high-power, high-density surface-mount transformer according to claim 3, characterized in that: Both sets of rotating plates (204) have a lever (211) fixedly connected to one side of the opposing clip (206), and the lever (211) is located in the middle area of ​​the rotating plate (204).

5. A high-power, high-density surface-mount transformer according to claim 4, characterized in that: A through hole (212) is provided on one side surface of the casing (201), and a round cover (213) is rotatably connected to the inner wall surface of the through hole (212).

6. A high-power, high-density surface-mount transformer according to claim 5, characterized in that: A groove (214) is provided on one side surface of the round cover (213), and a slider (215) is slidably connected inside the groove (214). A counterweight (216) is fixedly connected to one side surface of the slider (215).

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