Electronic transformer and safety sealing structure thereof

Abstract

The invention belongs to the technical field of electronic transformers, and discloses an electronic transformer and a safety sealing structure thereof.The electronic transformer comprises a transformer assembly, the transformer assembly comprises a magnetic core, a coil is connected to the magnetic core, and connecting plates are connected to the two opposite ends of the magnetic core correspondingly; according to the transformer assembly, the connecting plates and the conductive pins are arranged on the transformer assembly, so that the convenience of electrical connection of the transformer assembly in use can be improved, and meanwhile, the connecting stability of the transformer assembly can be effectively improved when the transformer assembly is connected with an external carrying area through the connecting plates.

Description

Technical Field

[0001] The invention belongs to the technical field of electronic transformers, in particular to an electronic transformer and a safety sealing structure thereof. Background Art

[0002] An electronic transformer is a static power device that combines power electronic conversion technology with high-frequency power conversion technology based on the principle of electromagnetic induction to achieve the conversion of power with one power characteristic into power with another power characteristic. When moisture enters the inside of an electronic transformer, it may cause the transformer to burn out, and the transformer insulation will age after being damp, which poses a safety hazard when used; if dust particles enter the inside of an electronic transformer, because the dust particles carry an electric charge, it is easy to interfere with the conduction of the electronic transformer, and even cause damage to the electronic transformer.

[0003] Furthermore, during the use of the electronic transformer, due to the state limitation of the electronic transformer, the fixed connection method is unique, which is not conducive to the application of the electronic transformer in various environments.

[0004] The patent with application number CN202410436984.1 discloses a safe and sealed electronic transformer, including a magnetic core 1, a magnetic core 2 and an insulating tape, wherein a mounting tube 1 and a mounting tube 2 are pressed and installed between the magnetic core 1 and the magnetic core 2, and the outer surfaces of the mounting tube 1 and the mounting tube 2 are respectively wound with primary windings and secondary windings, and a plurality of groups of pins are installed at the bottom of the mounting tube 2, and a fixed disk and a middle tube are fixedly installed between the mounting tube 1 and the mounting tube 2. The above technical scheme utilizes the "chimney effect" generated by the flow of hot air in the main exhaust channel to assist the air to be discharged upward, and forms an unpowered "airflow pump" in the inner cavity of the heat sink, which generates an upward negative pressure in the inner cavity of the heat sink, and can absorb the hot air from the sealed space between the middle tube and the fixed disk, and finally effectively realizes the thermal management balance function of the transformer, but cannot identify and protect the use status of the electronic transformer during use.

[0005] When the electronic transformer is in use, due to different use environments, the electronic transformer and the sealing component may be impacted, affecting the connection state of the electronic transformer in the sealing component. As the sealing component is used, the sealing component may be damaged, thereby interfering with the use of the electronic transformer.

[0006] Therefore, in order to solve the above technical problems, the present invention proposes an electronic transformer and a safe sealing structure thereof. Summary of the invention

[0007] The purpose of the present invention is to solve the above problems. The present invention provides an electronic transformer and a safety sealing structure thereof, which have the advantages of being safe and stable during use.

[0008] To achieve the above object, the present invention provides the following technical solution: an electronic transformer, comprising a transformer assembly, wherein the transformer assembly comprises a magnetic core, a coil is connected to the magnetic core, and connecting plates are respectively connected to opposite ends of the magnetic core; A plurality of conductive pins are connected to the two connecting plates.

[0009] The safety sealing structure comprises a sealing assembly, wherein the transformer assembly is movably connected in the sealing assembly, wherein two limiting plates are connected in the sealing assembly, wherein the connecting plate is clamped with the limiting plates, and wherein a protective assembly is connected on one side of the limiting plates away from each other; The protection component comprises an elastic bag, a protection cavity is provided in the elastic bag, and a plurality of folding plates are connected in the protection cavity.

[0010] Preferably, the sealing assembly includes a sealing shell, a connecting end is connected to the sealing shell, a placement cavity is opened in the sealing shell, one end of the placement cavity passes through the sealing shell, the transformer assembly, the limiting plate and the protection assembly are all located in the placement cavity, and a closing plate is connected to the sealing shell.

[0011] Preferably, the conductive pin on the connecting plate is connected to the connecting end through the limiting plate.

[0012] Preferably, a buffer assembly is connected between the limiting plate and the protection assembly, and the buffer assembly includes a buffer rod and two buffer springs, and both ends of the buffer rod and the two buffer springs are respectively connected to the limiting plate and the elastic bag.

[0013] Preferably, a through hole is formed in the buffer rod, and the placement cavity is connected with the protection cavity through the through hole.

[0014] Preferably, a torsion spring is connected to the folding portion of the folding plate.

[0015] Preferably, the placement chamber is filled with an inert gas.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By providing a connecting plate and a conductive pin on the transformer assembly, the convenience of electrical connection of the transformer assembly during use can be improved. At the same time, when the connecting plate is used to connect with the external mounting area, the connection stability of the transformer assembly can be effectively improved.

[0017] 2. Through the cooperation between the sealing component, the limiting plate, the buffer component and the protective component, the transformer component is connected to the limiting plate and completely moved into the sealing component to ensure that the electronic transformer will not directly contact the external environment. At the same time, when the sealing component is impacted, the transformer component will shake in the sealing component, drive the limiting plate to move, and use the buffer component and the protective component to buffer and reduce vibration of the transformer component to ensure the safety of the transformer component when in use.

[0018] 3. Through the cooperation between the buffer components and the protection components, the working status of the transformer components and the sealing components can be detected. By the expansion and contraction of the elastic bag and the elastic deformation of the buffer components, the status of the transformer components and the sealing components can be judged, and the abnormal status can be eliminated and checked in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the transformer assembly of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the sealing assembly of the present invention; Figure 3 It is a schematic diagram of the connection structure between the transformer assembly and the sealing assembly of the present invention; Figure 4 is a schematic diagram of the three-dimensional structure of the limiting plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the buffer assembly of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the protection component of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the protection component of the present invention.

[0020] Description of the drawings: 1. Transformer assembly; 101. Magnetic core; 102. Coil; 103. Connecting plate; 1031. Conductive pin; 2. Sealing assembly; 201. Sealing shell; 2011. Housing cavity; 202. Connecting end; 203. Closing plate; 3. Limiting plate; 4. Buffer assembly; 401. Buffer rod; 402. Buffer spring; 5. Protective assembly; 501. Elastic bag; 502. Protective cavity; 503. Folding plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 like Figure 1 As shown, an electronic transformer includes a transformer assembly 1, and the transformer assembly 1 includes a magnetic core 101, and a coil 102 is connected to the magnetic core 101. The connection form of the magnetic core 101 and the coil 102 is a common connection form, which will not be described in detail here. The opposite ends of the magnetic core 101 are respectively connected with connecting plates 103, and the connecting plates 103 protrude from the magnetic core 101, which is convenient for fixing the position of the transformer assembly 1 and ensuring that the transformer assembly 1 will not be detached during use.

[0023] In order to facilitate the electrical connection between the external cable and the transformer assembly 1, a plurality of conductive pins 1031 are connected to the two connecting plates 103, wherein the conductive pins 1031 are located on the surface of the connecting plates 103 and are connected to the magnetic core 101 and the coil 102, so as to facilitate the normal use of the electronic transformer.

[0024] When in use, first connect the connecting plate 103 to the area that needs to work to ensure that the transformer assembly 1 will not move during use, and then connect the circuit that needs to be adjusted to the conductive pin 1031, so that the circuit that needs to be adjusted can be adjusted to a suitable voltage value after passing through the transformer assembly 1.

[0025] Embodiment 2 like Figure 2 - Figure 7 As shown, a safety sealing structure for use in an electronic transformer is used to cover a transformer assembly 1 to ensure the stability and safety of the transformer assembly 1 when in use, including a sealing assembly 2, wherein the transformer assembly 1 is movably connected in the sealing assembly 2, two limiting plates 3 are connected in the sealing assembly 2, a connecting plate 103 is snap-connected with the limiting plates 3 to limit the position of the transformer assembly 1, and a protection assembly 5 for protecting the transformer assembly 1 inside the sealing assembly 2 is connected on one side of the limiting plates 3 away from each other.

[0026] In order to ensure that the limiting plate 3 can quickly limit the position of the transformer assembly 1 when in use, in the present embodiment, the cross-sectional structure of the limiting plate 3 is set to a "J" shape, and the recessed positions of the limiting plate 3 are in a state relative to each other. When the transformer assembly 1 is connected to the sealing assembly 2, the connecting plate 103 is used to slide into the groove of the limiting plate 3, and the connecting plate 103 can be clamped by the limiting plate 3 to fix the position of the transformer assembly 1. In order to ensure that the transformer assembly 1 can work normally in the sealing assembly 2 without causing damage to the sealing assembly 2, the limiting plate 3 is set in the middle area of ​​the sealing assembly 2. After the transformer assembly 1 is connected to the limiting plate 3, the transformer assembly 1 will not contact the sealing assembly 2.

[0027] After the position of the transformer assembly 1 is locked with the limiting plate 3 , the conductive pin 1031 is connected to the limiting plate 3 , and the limiting plate 3 is electrically connected to the outside of the sealing assembly 2 .

[0028] In order to ensure the stability of the transformer assembly 1 during use, the protection assembly 5 specifically includes an elastic bag 501, and the end of the elastic bag 501 away from the limiting plate 3 is connected to the sealing assembly 2. A protection cavity 502 is opened in the elastic bag 501, and a plurality of folding plates 503 are connected in the protection cavity 502. The folding plates 503 are connected to the opposite ends of the protection cavity 502. When the elastic bag 501 is squeezed and shrinks, the space in the protection cavity 502 will be reduced, and the folding plates 503 will be folded.

[0029] It should be noted that, in the present invention, in order to ensure that the transformer assembly 1 can be stably supported when in use, the two ends of the elastic bag 501 along the width direction are made of hard materials, and the elastic material is between the two hard materials.

[0030] Furthermore, in order to effectively protect the transformer assembly 1, the sealing assembly 2 includes a sealing shell 201, which can cover the transformer assembly 1. A connecting end 202 is connected to the sealing shell 201, and the limiting plate 3 is electrically connected to the connecting end 202, that is, when in use, by connecting to the connecting end 202, it can be connected to the conductive pin 1031, ensuring that the transformer assembly 1 works stably in the sealing shell 201. A placement cavity 2011 is opened in the sealing shell 201, and one end of the placement cavity 2011 passes through the sealing shell 201. The transformer assembly 1, the limiting plate 3 and the protection assembly 5 are all located in the placement cavity 2011. After the transformer assembly 1 is connected to the limiting plate 3, the transformer assembly 1 is located in the placement cavity 2011 as a whole. A closing plate 203 for sealing the opening position of the placement cavity 2011 is connected to the sealing shell 201, ensuring that the placement cavity 2011 is a relatively sealed space.

[0031] During the use of the device, the closing plate 203 is first opened to form an open cavity in the placement cavity 2011, and then the transformer assembly 1 is moved to connect with the limiting plate 3 and drive the transformer assembly 1 to move, so that the transformer assembly 1 is completely located in the placement cavity 2011, and then the closing plate 203 is used to close the placement cavity 2011 to ensure that the transformer assembly 1 is in a relatively closed space, and the circuit is connected to the connecting end 202 to ensure that the transformer assembly 1 can work stably.

[0032] It should be emphasized that, during the use of the safety sealing device, the conductive pin 1031 on the connecting plate 103 is connected to the connecting end 202 through the limiting plate 3 .

[0033] In order to ensure the stability of the transformer assembly 1 when used in the placement cavity 2011, and to prevent the transformer assembly 1 from being damaged due to vibration or position movement, a buffer assembly 4 for constraining the position of the limiting plate 3 is further connected between the limiting plate 3 and the protection assembly 5, and the buffer assembly 4 includes a buffer rod 401 and two buffer springs 402, and the two ends of the buffer rod 401 and the two buffer springs 402 are respectively connected to the limiting plate 3 and the elastic bag 501. After the transformer assembly 1 is connected to the limiting plate 3, and in the case of external interference, the transformer assembly 1 will shake in the placement cavity 2011, and drive the limiting plate 3 to shake synchronously. At this time, if the shaking amplitude of the transformer assembly 1 is not limited, it will greatly affect the service life of the transformer assembly 1, and in severe cases, a short circuit will occur. At this time, in the process of the transformer assembly 1 driving the limiting plate 3 to shake, the buffer rod 401 and the buffer spring 402 will be compressed, thereby weakening the movement amplitude of the limiting plate 3 and ensuring the stability of the transformer assembly 1.

[0034] When the amplitude of the transformer assembly 1 in the housing cavity 2011 is too large, the transformer assembly 1 cannot be effectively buffered only by the buffer rod 401 and the buffer spring 402. That is, after the buffer rod 401 and the buffer spring 402 on one side are compressed to the maximum and the other side is extended to the maximum, when the transformer assembly 1 still has a tendency to move, the compression of the buffer assembly 4 is used to apply force to the protection assembly 5, and the force at this time is greater than the force of the folding plate 503 and the elastic bag 501, so that the elastic bag 501 is compressed and the folding plate 503 is folded, so as to absorb the force on the buffer assembly 4, thereby achieving the purpose of reducing the shaking amplitude of the transformer assembly 1.

[0035] Furthermore, in order to ensure that the protection component 5 can identify the usage status of the sealing component 2, a through hole is opened in the buffer rod 401, and the installation cavity 2011 is connected with the protection cavity 502 by the through hole, and the gas flow between the installation cavity 2011 and the protection cavity 502 is realized through the through hole. During the use of the safety sealing structure, the through hole is used to ensure that the air pressure value between the installation cavity 2011 and the protection cavity 502 is constant.

[0036] When the transformer assembly 1 and the sealing assembly 2 are both in normal working conditions, the pressure values ​​between the placement cavity 2011 and the protection cavity 502 are the same, and the folding plate 503 is partially folded, and the elastic bag 501 is partially compressed.

[0037] When the temperature of the transformer assembly 1 continues to rise with the increase in usage time, the temperature in the installation cavity 2011 will increase, causing the gas in the installation cavity 2011 to expand through the through hole into the protective cavity 502, thereby causing the gas in the protective cavity 502 to expand synchronously. However, since the temperature in the installation cavity 2011 is always greater than the temperature in the protective cavity 502, the expansion rate of the gas in the elastic capsule 501 will be lower than the expansion rate of the gas in the installation cavity 2011, that is, the installation cavity 2011 further compresses the elastic capsule 501. At this time, since the limiting plate 3 is connected to the transformer assembly 1 and its position has not changed, the buffer assembly 4 will be extended.

[0038] When the transformer assembly 1 is in normal working condition, but the sealing state of the sealing assembly 2 leaks, the gas in the installation cavity 2011 will be discharged through the leakage point. At the same time, due to the discharge of the gas in the installation cavity 2011, the gas in the protection cavity 502 quickly replenishes the gas in the installation cavity 2011, causing the gas in the protection cavity 502 to be quickly discharged, and then under the action of the folding plate 503, the elastic bag 501 will be prompted to expand rapidly.

[0039] Furthermore, in order to ensure that the folding plate 503 can effectively support the protection cavity 502 and can cause the elastic bag 501 to return to its original position, a torsion spring is connected and arranged at the folding position of the folding plate 503 .

[0040] Furthermore, the placement cavity 2011 and the elastic bag 501 are filled with inert gas to ensure that the transformer assembly 1 can be used normally in the placement cavity 2011 without arc breakdown, and when gas flows between the placement cavity 2011 and the elastic bag 501, the use status of the electronic transformer and the safety sealing structure can be identified in time, wherein the inert gas is preferably helium.

[0041] In order to identify the use status of the safety sealing structure, a display terminal is provided on the sealing shell 201 to display the stress condition and telescopic length of the buffer component 4 in the placement cavity 2011, so as to make an intuitive judgment on the use status of the transformer component 1 and the sealing component 2.

[0042] When in use, first take out the closing plate 203 to open the placement cavity 2011, connect the transformer assembly 1 with the limiting plate 3, so that the transformer assembly 1 is completely located in the placement cavity 2011, then seal the closing plate 203 and inject inert gas, then connect the circuit to be connected with the connecting end 202, so that the circuit passes through the sealing assembly 2 and then through the transformer assembly 1, to ensure that the transformer assembly 1 will not directly contact the outside world during normal use, thereby ensuring the safety of the transformer assembly 1 during use.

[0043] When the device is in normal working state, the inert gas in the placement chamber 2011 and the protection chamber 502 is used to weaken the arc that may appear on the transformer component 1, and the buffer component 4 and the protection component 5 are used to protect the state of the transformer component 1.

[0044] When the sealing shell 201 is impacted by the outside world, the transformer assembly 1 will be driven to shake in the mounting cavity 2011, prompting the transformer assembly 1 to drive the limiting plate 3 to move, thereby driving the buffer rod 401 and the buffer spring 402 to elastically deform, thereby reducing the elastic potential energy of the transformer assembly 1, thereby suppressing the vibration time and amplitude of the transformer assembly 1 and ensuring the safety of the transformer assembly 1.

[0045] When the amplitude of the transformer assembly 1 in the placement chamber 2011 is too large, the effective buffering of the transformer assembly 1 cannot be achieved only by the buffer rod 401 and the buffer spring 402. That is, after the buffer rod 401 and the buffer spring 402 on one side are compressed to the maximum and the other side is stretched to the maximum, when the transformer assembly 1 still has a tendency to move, the compression of the buffer assembly 4 is used to apply force to the protection assembly 5, and the force at this time is greater than the force of the folding plate 503 and the elastic bag 501, so that the elastic bag 501 is compressed, and the folding plate 503 shrinks under the action of the torsion spring. In addition, since the placement chamber 2011 and the protection chamber 502 are both in relatively sealed chambers, after the elastic bag 501 is compressed, the gas in the protection chamber 502 will be prompted to enter the placement chamber 2011 through the through hole, thereby increasing the gas concentration in the placement chamber 2011, thereby achieving the purpose of suppressing the vibration of the transformer assembly 1 and ensuring the safe use of the transformer assembly 1 in the placement chamber 2011.

[0046] At the same time, while the buffer component 4 and the protection component 5 are used to protect the transformer component 1, the buffer component 4 and the protection component 5 can also be used to identify the use status of the safety sealing structure.

[0047] When the transformer assembly 1 and the sealing assembly 2 are both in normal working conditions, the pressure value between the installation cavity 2011 and the protection cavity 502 is the same. In order to ensure that the gas pressure value in the elastic bag 501 and the installation cavity 2011 is the same, the folding plate 503 is partially folded and the elastic bag 501 is partially compressed to ensure that the protection assembly 5 still has the protective effect on the transformer assembly 1.

[0048] When the heat generated by the transformer assembly 1 continues to increase with the increase in usage time, resulting in a corresponding increase in temperature, the inert gas in the placement chamber 2011 is heated, causing the gas in the placement chamber 2011 to expand and enter the protective chamber 502 through the through hole, causing the gas in the protective chamber 502 to expand synchronously. However, since the temperature in the placement chamber 2011 is always greater than the temperature in the protective chamber 502, that is, the expansion rate of the gas in the elastic capsule 501 is less than the expansion rate of the gas in the placement chamber 2011, correspondingly, the air pressure in the placement chamber 2011 is greater than the air pressure in the protective chamber 502, that is, the gas in the placement chamber 2011 will further compress the elastic capsule 501 and drive the buffer rods 401 and the buffer springs 402 on both sides to extend in length, and the states of the buffer rods 401 and the buffer springs 402 can be identified and displayed. It should be noted that when the transformer assembly 1 is in normal working condition, in the later stage of the operation of the transformer assembly 1, the temperatures in the placement chamber 2011 and the protective chamber 502 tend to be stable, and at this time, the buffer assembly 4 no longer shows obvious changes.

[0049] During use, when the buffer rod 401 and the buffer spring 402 are over-extended, that is, when the buffer rod 401 and the buffer spring 402 are close to the limit of expansion and contraction, it means that the use status of the transformer assembly 1 is faulty and the user needs to be prompted to inspect the transformer assembly 1.

[0050] When the transformer component 1 is always in a normal working state, when the sealing state of the sealing component 2 leaks, the gas in the installation chamber 2011 will be discharged through the leakage point. At the same time, since the installation chamber 2011 and the protection chamber 502 are in a connected state through the through hole, when the gas in the installation chamber 2011 is discharged, the gas in the protection chamber 502 quickly replenishes the gas in the installation chamber 2011, so that the gas pressure in the protection chamber 502 is rapidly reduced. At the same time, because the air pressure in the installation chamber 2011 is also reduced, the pressure on the elastic bag 501 and the folding plate 503 is reduced. Under the action of the torsion spring in the folding plate 503, the length of the folding plate 503 is extended, thereby driving the elastic bag 501 to expand rapidly, and the buffer components 4 on both sides are synchronously compressed. At this time, the user is prompted to detect and identify the sealing component 2, thereby ensuring that the electronic transformer and the safety sealing structure are always in a normal working state.

[0051] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic transformer, comprising a transformer assembly (1), characterized in that: The transformer assembly (1) comprises a magnetic core (101), a coil (102) being connected to the magnetic core (101), and connecting plates (103) being respectively connected to opposite ends of the magnetic core (101); A plurality of conductive pins (1031) are connected to both of the two connection plates (103).

2. The safety sealing structure for use in the electronic transformer according to claim 1, characterized in that: It comprises a sealing component (2), the transformer component (1) being movably connected in the sealing component (2), two limiting plates (3) being connected in the sealing component (2), the connecting plate (103) being snap-connected with the limiting plates (3), and a protective component (5) being connected on the sides of the limiting plates (3) which are away from each other; The protection component (5) comprises an elastic bag (501), a protection cavity (502) is provided in the elastic bag (501), and a plurality of folding plates (503) are connected and provided in the protection cavity (502).

3. The safety sealing structure according to claim 2, characterized in that: The sealing component (2) comprises a sealing shell (201), a connecting end (202) being connected to the sealing shell (201), a placement cavity (2011) being provided in the sealing shell (201), one end of the placement cavity (2011) passing through the sealing shell (201), the transformer component (1), the limiting plate (3) and the protection component (5) being all located in the placement cavity (2011), and a closing plate (203) being connected to the sealing shell (201).

4. The safety sealing structure according to claim 3, characterized in that: The conductive pin (1031) on the connecting plate (103) is connected to the connecting end (202) via the limiting plate (3).

5. The safety sealing structure according to claim 3, characterized in that: A buffer component (4) is connected between the limiting plate (3) and the protection component (5), the buffer component (4) comprising a buffer rod (401) and two buffer springs (402), the two ends of the buffer rod (401) and the two buffer springs (402) being respectively connected to the limiting plate (3) and the elastic bag (501).

6. The safety sealing structure according to claim 5, characterized in that: A through hole is formed through the buffer rod (401), and the placement cavity (2011) is connected to the protection cavity (502) by means of the through hole.

7. The safety sealing structure according to claim 2, characterized in that: A torsion spring is connected to the folded portion of the folding plate (503).

8. The safety sealing structure according to claim 3, characterized in that: The placement cavity (2011) is filled with an inert gas.

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