Filtering assembly of power transformer

Abstract

The utility model relates to the technical field of filtering assemblies, in particular to a filtering assembly of a power transformer. In order to solve the problem that the frequency range of a wireless communication signal is overlapped with the passband or stopband frequency range of the filter, so that the normal signal processing of the filter is possibly interfered, the following technical scheme is provided: the filter comprises a shielding plate; the filtering module is arranged on the side face of the shielding plate, and a shielding cover is installed on the outer side of the filtering module; a plurality of groups of connecting assemblies which are installed at two sides of the shielding case and are convenient for wiring and use of the shielding case; and a plurality of groups of synchronization mechanisms arranged on the inner side of the shielding case and used for ensuring the stability of circuit connection. According to the utility model, external wireless signals can be effectively blocked, the accuracy and effectiveness of filtering are improved, and the installation and maintenance operations are simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter assembly technical field especially relates to a filter assembly of power transformer. BACKGROUND

[0002] A filter is an electronic device or circuit that processes signals. Its main function is to allow signals within a specific frequency range to pass through while suppressing or attenuating signals of other frequencies, thereby achieving selective filtering of the signal spectrum. With the development of wireless communication technology, various devices can be controlled using wireless communication. Wireless communication signals usually occupy a certain frequency range, and filters also have specific passband and stopband frequency ranges when working. If the frequency range of the wireless communication signal overlaps with the passband or stopband frequency range of the filter, it may interfere with the filter's processing of normal signals. In view of this, the utility model provides a filter assembly of power transformer. SUMMARY

[0003] The utility model aims at the problem that the frequency range of wireless communication signal overlaps with the passband or stopband frequency range of filter in the background art, which may interfere with the filter's processing of normal signals, and provides a filter assembly of power transformer.

[0004] The technical scheme of the utility model: a filter assembly of power transformer, including shielding board, filter module is set up in the side surface of shielding board, shielding cover is installed outside filter module, a plurality of groups of connecting components are installed on both sides of shielding cover, the connecting component is convenient for wiring and use of shielding cover, a plurality of groups of synchronous mechanisms are arranged in the inner side of shielding cover, and the synchronous mechanism is used for guaranteeing the stability of circuit connection.

[0005] Optionally, a plurality of groups of mounting plates are fixedly connected on both sides of the shielding cover, first bolts are penetratingly arranged in the mounting plates, the first bolts are in threaded connection with the shielding board, and a positioning frame is installed on the inner wall of the side of the shielding cover away from the shielding board.

[0006] Optionally, four groups of first positioning blocks are fixedly connected on the side of the shielding board close to the filter module, the four groups of first positioning blocks are arranged at four corner positions of the filter module respectively, four groups of second positioning blocks are further installed on the side of the shielding board close to the filter module, and the four groups of second positioning blocks are located at four corner positions of the shielding cover respectively.

[0007] Optionally, the connecting assembly includes a first electrode plate fixedly connected to the side of the filter module, a second electrode plate disposed on the side of the first electrode plate away from the filter module, the second electrode plate being L-shaped, a slider slidably connected to the bottom of the second electrode plate, the slider being I-shaped, a mounting base fixedly connected to the side of the slider near the shielding plate, the mounting base being fixedly connected to the shielding plate, a wiring groove being provided on the mounting base, a pressure plate slidably connected in the wiring groove, a second bolt being threaded through the pressure plate, the second bolt being threadedly connected to the mounting base, and the second electrode plate being electrically connected to the pressure plate.

[0008] Optionally, an insulating pad is provided on the side of the shielding plate at a position corresponding to the first electrode sheet.

[0009] Optionally, the synchronization mechanism includes a first slide rod fixedly connected to the side of the second electrode plate away from the first electrode plate, a movable plate slidably connected to the first slide rod, a collar fixedly connected to the outer ring of the first slide rod, the collar being located between the second electrode plate and the movable plate, a first spring sleeved and installed on the outer ring of the first slide rod between the movable plate and the collar, and a first limiting plate fixedly connected to the end of the first slide rod away from the second electrode plate.

[0010] Optionally, a sliding block is fixedly connected to the side of the movable plate away from the collar, and a pressing block is provided on the side of the sliding block away from the movable plate. The pressing block is fixedly connected to the inside of the shielding cover. The end of the sliding block away from the shielding plate is inclined, and the end of the pressing block near the shielding plate is also inclined.

[0011] Optionally, the movable plate is also slidably connected to multiple sets of second slide rods, and the ends of the multiple sets of second slide rods near the filter module are fixedly connected to a fixed plate. Multiple sets of connecting plates are fixedly connected between the fixed plate and the shielding plate. A second spring is provided between the movable plate and the fixed plate and sleeved on the outer ring of the second slide rod. A second limiting plate is fixedly connected to the end of the second slide rod away from the fixed plate.

[0012] In summary, this application includes at least one of the following beneficial technical effects:

[0013] This invention, through the setting of a shielding cover, can effectively block external wireless signals, reduce their chance of interfering with the filtering module, and enable the filtering module to focus more on processing the target signal, thereby improving the accuracy and effectiveness of filtering.

[0014] Furthermore, by setting up a synchronization mechanism, after the shielding cover is installed, the second electrode plate is driven to contact the first electrode plate, and the contact effect is improved by the elastic force of the first spring, ensuring the stability of the electrical connection.

[0015] In conclusion, the utility model discloses can effectively block outside wireless signal, improve the accuracy and effectiveness of filtering, and simple operation of installation and maintenance simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Give the structure diagram of the filter assembly of the power transformer of the utility model;

[0017] Figure 2 It is the schematic diagram of before shield case installation state;

[0018] Figure 3 It is Figure 1 Sectional structure schematic diagram;

[0019] Figure 4 It is Figure 3 Amplification schematic diagram of A in;

[0020] Figure 5 It is the structure schematic diagram of synchronous mechanism.

[0021] Reference signs:

[0022] 1, shield plate;11, first positioning block;12, second positioning block;13, insulating pad;

[0023] 2, filter module;3, shield case;31, mounting plate;32, first bolt;33, positioning frame;

[0024] 4, connecting assembly;41, first electrode sheet;42, second electrode sheet;43, sliding block;44, mounting seat;45, wiring slot;46, pressing sheet;47, second bolt;

[0025] 5, synchronous mechanism;51, first sliding rod;52, moving plate;53, collar;54, first spring;55, first limit disc;56, sliding block;57, extrusion block;58, second sliding rod;59, fixed plate;510, connecting plate;511, second spring;512, second limit disc. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described clearly and completely in combination with the drawings, and obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment.

[0027] The components of the utility model embodiment generally described and displayed in the drawings can be arranged and designed in various different configurations.

[0028] Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the range of the utility model protection.

[0029] In the description of the utility model, it is to be explained that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown based on the drawing, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as the restriction on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the relative importance.

[0030] In the description of the utility model, it is to be explained that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Embodiment

[0032] As Figures 1 to 5 shown, the utility model provides a filter assembly of power transformer, including shielding plate 1, shielding plate 1 is fixedly connected with four groups of first locating block 11 on the side close to filter module 2, four groups of first locating block 11 are arranged at the four corner positions of filter module 2 respectively, and be used for the position of filter module 2 is positioned. Shielding plate 1 still installs four groups of second locating block 12 on the side close to filter module 2, four groups of second locating block 12 are located at the four corner positions of shielding cover 3 respectively, and second locating block 12 is used for the position of shielding cover 3 is positioned.

[0033] Specifically, the aforementioned filtering assembly includes a filtering module 2 disposed on the side of the shielding plate 1. The filtering module 2 utilizes the different impedances and phase shifts generated by signals of different frequencies in electronic components. By rationally combining components such as capacitors, inductors, and resistors, different types of filter circuits are created, thereby achieving selective passage or blocking of signals of specific frequencies. This is existing technology and will not be elaborated upon further. A shielding cover 3 is mounted on the outside of the filtering module 2. Multiple mounting plates 31 are fixedly connected to both sides of the shielding cover 3. A first bolt 32 is threaded through the mounting plate 31 and connected to the shielding plate 1. This allows the shielding cover 3 to be fixed to the side of the shielding plate 1 using the first bolt 32 and the positioning frame 33, placing the filtering module 2 between the shielding plate 1 and the shielding cover 3. Both the shielding plate 1 and the shielding cover 3 are made of copper. When facing wireless signals, they can efficiently reflect and absorb electromagnetic waves based on the principle of electromagnetic induction, forming a strong shielding effect against wireless signals. This effectively blocks interference from external wireless signals and prevents internal signals from leaking outwards. A positioning frame 33 is installed on the inner wall of the shielding cover 3 away from the shielding plate 1. After the shielding cover 3 is installed, the filter module 2 is pressed against one side of the shielding plate 1, so that the position of the filter module 2 is fixed.

[0034] Furthermore, the aforementioned filtering assembly also includes multiple sets of connecting components 4 installed on both sides of the shielding cover 3. The connecting components 4 facilitate the wiring and use of the shielding cover 3. The connecting components 4 include a first electrode plate 41 fixedly connected to the side of the filtering module 2. A second electrode plate 42 is provided on the side of the first electrode plate 41 away from the filtering module 2. The second electrode plate 42 is L-shaped. When the first electrode plate 41 and the second electrode plate 42 are in contact, the circuit is connected. A slider 43 is slidably connected to the bottom of the second electrode plate 42. The slider 43 is I-shaped. A mounting base 44 is fixedly connected to the side of the slider 43 near the shielding plate 1. The mounting base 44 is fixedly connected to the shielding plate 1. The position of the mounting base 44 is fixed, thereby fixing the position of the slider 43, so that the movement of the second electrode plate 42 is smooth. A wiring groove 45 is provided on the mounting base 44. A pressure plate 46 is slidably connected in the wiring groove 45. A second bolt 47 is provided through the pressure plate 46. The second bolt 47 is threadedly connected to the mounting base 44, which facilitates clamping of the wire after tightening and ensures the power supply connection. The second electrode plate 42 is electrically connected to the pressure plate 46, thus connecting the circuit. An insulating pad 13 is provided on the side of the shielding plate 1 at the position corresponding to the first electrode plate 41 to prevent current from passing through the shielding plate 1.

[0035] Further, the filter assembly comprises a plurality of synchronization mechanisms 5 arranged inside the shielding cover 3, which are used to ensure the stability of the circuit connection. The synchronization mechanism 5 comprises a first sliding rod 51 fixedly connected to the second electrode sheet 42 away from the first electrode sheet 41, which moves synchronously with the second electrode sheet 42. The first sliding rod 51 is slidably connected with a moving plate 52, and the outer ring of the first sliding rod 51 is further fixedly connected with a sleeve ring 53, which is located between the second electrode sheet 42 and the moving plate 52. A first spring 54 is arranged between the moving plate 52 and the sleeve ring 53 and is sleevedly installed on the outer ring of the first sliding rod 51. When the moving plate 52 moves, it extrudes the first spring 54 and drives the first sliding rod 51 and the second electrode sheet 42 to move through the sleeve ring 53. Under the elastic force of the first spring 54, the second electrode sheet 42 is tightly attached to the first electrode sheet 41, ensuring good electrical contact. The first sliding rod 51 is fixedly connected with a first limiting disc 55 at an end away from the second electrode sheet 42, preventing the moving plate 52 from being separated from the first sliding rod 51. The moving plate 52 is fixedly connected with a sliding block 56 at an end away from the sleeve ring 53, and the sliding block 56 is provided with an extrusion block 57 at an end away from the moving plate 52. The extrusion block 57 is fixedly connected inside the shielding cover 3, and the end of the sliding block 56 away from the shielding plate 1 is inclined, and the end of the extrusion block 57 close to the shielding plate 1 is also inclined, so that the shielding cover 3 can drive the extrusion block 57 to extrude the sliding block 56 when installed, thereby driving the moving plate 52 to move. The moving plate 52 is further slidably connected with two second sliding rods 58, and the two second sliding rods 58 are fixedly connected with a fixed plate 59 at an end close to the filter module 2. A plurality of connecting plates 510 are fixedly connected between the fixed plate 59 and the shielding plate 1, and the positions of the fixed plate 59 and the connecting plates 510 are fixed. A second spring 511 is arranged between the moving plate 52 and the fixed plate 59 and is sleevedly installed on the outer ring of the second sliding rod 58. The second sliding rod 58 is fixedly connected with a second limiting disc 512 at an end away from the fixed plate 59. Under the elastic force of the second spring 511, when the shielding cover 3 is away from the shielding plate 1, the second spring 511 releases the elastic force to drive the moving plate 52 to move away from the filter module 2, thereby driving the second electrode sheet 42 to move away from the first electrode sheet 41, facilitating the disassembly and replacement of the filter module 2.

[0036] In the embodiment, when the combination is installed, the filter module 2 is placed on the side of the shielding plate 1 under the limiting action of the four sets of first positioning blocks 11, and then the shielding cover 3 is covered on one side of the shielding plate 1 under the action of the second positioning block 12. When the shielding cover 3 is close to the shielding plate 1, the extrusion block 57 is in contact with the inclined surface of the sliding block 56, the extrusion block 57 extrudes the sliding block 56 and drives the moving plate 52 to slide under the limiting action of the second sliding rod 58. At this time, the moving plate 52 extrudes the second spring 511, and at the same time drives the first sliding rod 51 to move and drives the second electrode sheet 42 to be close to the first electrode sheet 41. After the second electrode sheet 42 is in contact with the first electrode sheet 41, the moving plate 52 continuously moves and extrudes the first spring 54, and the elastic force of the first spring 54 makes the second electrode sheet 42 extrude the first electrode sheet 41, so as to ensure the stability of the electrical contact. Finally, the shielding cover 3 is fixed on the side of the shielding plate 1 through the mounting plate 31 and the first bolt 32, and at the same time the positioning frame 33 abuts against the position of the filter module 2, so as to ensure the position of the filter module 2 is fixed. The external circuit is inserted into the wiring slot 45, and the second bolt 47 is tightened to drive the pressing sheet 46 to extrude the wire to realize the connection, and at this time the circuit is connected.

[0037] The above specific embodiments are only optional embodiments of the present application, and based on the technical scheme of the present application and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A filter assembly for a power transformer, characterized by include: Shielding plate (1); The filter module (2) is disposed on the side of the shielding plate (1), and a shielding cover (3) is installed on the outside of the filter module (2); Multiple sets of connecting components (4) are installed on both sides of the shield (3), and the connecting components (4) facilitate the wiring and use of the shield (3); Multiple synchronization mechanisms (5) are disposed inside the shield (3), and the synchronization mechanisms (5) are used to ensure the stability of the circuit connection.

2. A filter assembly for a power transformer as defined in claim 1, characterized in that Multiple sets of mounting plates (31) are fixedly connected to both sides of the shielding cover (3). A first bolt (32) is provided through the mounting plate (31). The first bolt (32) is threadedly connected to the shielding plate (1). A positioning frame (33) is installed on the inner wall of the shielding cover (3) away from the shielding plate (1).

3. A filter assembly for a power transformer as defined in claim 2, wherein, Four sets of first positioning blocks (11) are fixedly connected to the side of the shielding plate (1) near the filter module (2). The four sets of first positioning blocks (11) are respectively set at the four corners of the filter module (2). Four sets of second positioning blocks (12) are also installed on the side of the shielding plate (1) near the filter module (2). The four sets of second positioning blocks (12) are respectively located at the four corners of the shielding cover (3).

4. A filter assembly for a power transformer as claimed in claim 3, wherein, The connecting component (4) includes a first electrode plate (41) fixedly connected to the side of the filter module (2). A second electrode plate (42) is provided on the side of the first electrode plate (41) away from the filter module (2). The second electrode plate (42) is L-shaped. A slider (43) is slidably connected to the bottom of the second electrode plate (42). The slider (43) is I-shaped. A mounting base (44) is fixedly connected to the side of the slider (43) near the shielding plate (1). The mounting base (44) is fixedly connected to the shielding plate (1). A wiring groove (45) is provided on the mounting base (44). A pressure plate (46) is slidably connected in the wiring groove (45). A second bolt (47) is provided through the pressure plate (46). The second bolt (47) is threadedly connected to the mounting base (44). The second electrode plate (42) is electrically connected to the pressure plate (46).

5. A filter assembly for a power transformer as claimed in claim 4, wherein, An insulating pad (13) is provided on the side of the shielding plate (1) at the position corresponding to the first electrode plate (41).

6. A filter assembly for a power transformer as defined in claim 4, wherein, The synchronization mechanism (5) includes a first slide rod (51) fixedly connected to the side of the second electrode plate (42) away from the first electrode plate (41). A movable plate (52) is slidably connected to the first slide rod (51). A collar (53) is also fixedly connected to the outer ring of the first slide rod (51). The collar (53) is located between the second electrode plate (42) and the movable plate (52). A first spring (54) is sleeved and installed on the outer ring of the first slide rod (51) between the movable plate (52) and the collar (53). A first limiting plate (55) is fixedly connected to the end of the first slide rod (51) away from the second electrode plate (42).

7. A filter assembly for a power transformer as defined in claim 6, wherein The mobile plate (52) is fixedly connected with a sliding block (56) away from the side of the sleeve ring (53), the sliding block (56) is provided with an extrusion block (57) away from the side of the mobile plate (52), the extrusion block (57) is fixedly connected to the inner side of the shielding cover (3), the end of the sliding block (56) away from the shielding plate (1) is inclined, and the end of the extrusion block (57) close to the shielding plate (1) is also inclined.

8. A filter assembly for a power transformer as defined in claim 7, wherein, A plurality of groups of second sliding rods (58) are slidably connected to the mobile plate (52), a plurality of groups of the second sliding rods (58) are fixedly connected with a fixed plate (59) at the end close to the filtering module (2), a plurality of groups of connecting plates (510) are fixedly connected between the fixed plate (59) and the shielding plate (1), a second spring (511) is arranged between the mobile plate (52) and the fixed plate (59) and is sleeved on the outer circle of the second sliding rod (58), and a second limiting disc (512) is fixedly connected to the end of the second sliding rod (58) away from the fixed plate (59).

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