A small-size low-frequency-band ultra-wideband LC filter

Abstract

The utility model provides a kind of small volume low frequency band ultra-wideband LC filter, it is related to electronic component material engineering technical field, including resonant filter assembly, wiring port component and phase change heat dissipation component, wiring port component is located at the outer surface side of resonant filter assembly, by the synergic cooperation of phase change heat dissipation component each component, gypsum material in phase change box is mutually converted between solid and liquid to realize fast absorption and release heat, to rapidly dissipate heat in high-power scene, rapidly release stored heat when temperature is lower to meet the demand, externally fixed heat dissipation grille can avoid heat accumulation too much to cause to exceed the load range of material, avoid the problem that traditional device is seriously heat-accumulated in low-frequency high-power application scene, cannot quickly export internal heat, effectively delay component consumption, greatly prolong the service life of device, make it in daily use practicality and functionality are effectively taken into account, compared with traditional single mode more adapt to actual demand.

Description

Technical Field

[0001] This utility model relates to the field of electronic component materials engineering technology, and in particular to a small-volume, low-frequency, ultra-wideband LC filter. Background Technology

[0002] A small-volume low-frequency ultra-wideband LC filter is a passive filter composed of an inductor (L) and a capacitor (C). It is mainly used to process signals in the 10kHz to 10GHz frequency band and can achieve the filtering function of low-frequency ultra-wideband signals.

[0003] In traditional small-volume, low-frequency, ultra-wideband LC filters, the heat dissipation design is insufficient. Due to the Joule heating of parasitic resistance under low-frequency, high-current conditions and the heat accumulation caused by dense component layout, the inductor and capacitor parameters drift after the temperature rises, which affects the stability of the filtering performance. Furthermore, the poor heat dissipation will reduce the lifespan of components during long-term high-power operation. Utility Model Content

[0004] To address the problem of severe heat buildup and inability to quickly dissipate internal heat in traditional small-volume, low-frequency, ultra-wideband LC filters in low-frequency, high-power applications, this invention proposes a small-volume, low-frequency, ultra-wideband LC filter. This filter utilizes paraffin material to absorb and store latent heat during the solid-to-liquid phase transition, and then releases the stored heat during the liquid-to-solid phase transition. Combined with heat dissipation grilles mounted on the device surface, this maintains stable device temperature for a certain period, preventing overheating of the filter, effectively delaying component wear, significantly extending the device's lifespan, thereby substantially reducing costs and improving safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a small-volume low-frequency ultra-wideband LC filter, comprising a resonant filter component, a wiring port component, and a phase change heat dissipation component, wherein the wiring port component is disposed on one side of the outer surface of the resonant filter component, and the phase change heat dissipation component covers three sides of the outer surface of the resonant filter component. The phase change heat dissipation component includes a main heat dissipation grille and two phase change boxes. The main heat dissipation grille is directly attached to one side of the outer surface of the resonant filter component and is used to dissipate heat from the top of the filter device. The two phase change boxes are encapsulated with paraffin material, and heat dissipation is achieved through the phase change of paraffin when the temperature changes. Each phase change box has an auxiliary heat dissipation grille on one side of its outer wall, and the two auxiliary heat dissipation grilles are used to dissipate heat from the two phase change boxes. Two thermally conductive copper rings are inserted into the inner surface of each phase change box. All four thermally conductive copper rings penetrate the resonant filter component and are used to provide auxiliary heat conduction between the two phase change boxes and the resonant filter component.

[0006] Preferably, sealing gaskets are fitted at the two ends where the outer surfaces of the four heat-conducting copper rings intersect with the phase change box.

[0007] Preferably, the resonant filter assembly includes a chassis, a filter unit is fixedly connected to the top of the chassis, and two holes are respectively passed through the two ends of the outer wall of the filter unit, and sealing gaskets are fitted on both ends of the inner surface of the four holes.

[0008] Preferably, both sides of the outer wall of the filter unit are fixedly connected to the phase change box.

[0009] Preferably, a metal guide rod is provided at one end of the outer wall of the filter unit, a limiting bolt is fitted on the outer surface of the metal guide rod, a gasket is provided on one side of the outer wall of the limiting bolt, and an adjusting bolt is provided on one side of the outer wall of the gasket.

[0010] Preferably, the wiring port assembly includes a terminal base, four guide strips are inserted into the inner wall of the terminal base, and four conductive plates are connected to the bottom of the inner wall of the terminal base.

[0011] Preferably, the top of the terminal base has four screw holes, and fastening screws are inserted into the inner surface of each of the four screw holes.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, the heat transfer between the filter unit and the phase change box is facilitated by the coordinated operation of various components of the phase change heat dissipation assembly. The gypsum material inside the phase change box rapidly absorbs and releases heat through the interconversion between solid and liquid states. This enables rapid heat dissipation in high-power scenarios and rapid release of stored heat at lower temperatures to meet demand. The externally fixed heat dissipation grille prevents excessive heat buildup that could exceed the material's load capacity. This avoids the problem of severe heat buildup in traditional devices during low-frequency, high-power applications, which prevents the rapid removal of internal heat. This effectively delays component wear and significantly extends the device's lifespan, thereby greatly reducing production costs. It effectively balances practicality and functionality in daily use, making it more suitable for actual needs compared to traditional single-mode designs. Attached Figure Description

[0013] Figure 1 This is a three-dimensional front view of a small-volume low-frequency ultra-wideband LC filter proposed in this utility model; Figure 2 This is a schematic diagram showing the installation position of the wiring port assembly in a small-volume low-frequency ultra-wideband LC filter proposed in this utility model. Figure 3 This is a schematic diagram showing the installation position of the resonant filter component in a small-volume low-frequency ultra-wideband LC filter proposed in this utility model. Figure 4This is a schematic diagram showing the installation position of the phase change heat dissipation component in a small-volume low-frequency ultra-wideband LC filter proposed in this utility model. Figure 5 for Figure 3 Enlarged view of the structure at point A in the image.

[0014] Legend: 1. Resonant filter assembly; 101. Chassis; 102. Filter unit; 103. Sealing washer; 104. Metal guide rod; 105. Limit bolt; 106. Gasket; 107. Adjusting bolt; 2. Wiring port assembly; 201. Terminal base; 202. Guide strip; 203. Conductive sheet; 204. Fastening screw; 3. Phase change heat dissipation assembly; 301. Main heat dissipation grille; 302. Phase change box; 303. Auxiliary heat dissipation grille; 304. Thermally conductive copper ring; 305. Sealing washer. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] 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. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] In the embodiments, according to Figures 1-2 As shown, this utility model provides a technical solution: a small-volume low-frequency ultra-wideband LC filter, including a resonant filter component 1, a wiring port component 2, and a phase change heat dissipation component 3. The wiring port component 2 is disposed on one side of the outer surface of the resonant filter component 1, and the phase change heat dissipation component 3 covers three sides of the outer surface of the resonant filter component 1.

[0018] The resonant filter assembly 1 includes a chassis 101, and a filter unit 102 is fixedly connected to the top of the chassis 101. Two holes are respectively passed through the two ends of the outer wall of the filter unit 102. The inner surfaces of the four holes are fitted with sealing washers 103 at both ends. The outer walls of the filter unit 102 are fixedly connected to the phase change box 302 on both sides. A metal guide rod 104 is provided at one end of the outer wall of the filter unit 102. A limiting bolt 105 is fitted on the outer surface of the metal guide rod 104. A gasket 106 is provided on one side of the outer wall of the limiting bolt 105. An adjusting bolt 107 is provided on one side of the outer wall of the gasket 106.

[0019] The terminal assembly 2 includes a terminal base 201, four guide strips 202 are inserted into the inner wall of the terminal base 201, four conductive plates 203 are connected to the bottom of the inner wall of the terminal base 201, and four screw holes are opened on the top of the terminal base 201. Fastening screws 204 are inserted into the inner surface of each of the four screw holes.

[0020] Specifically: When using this device for ultra-wideband filtering, firstly, fix the filter unit 102 on the chassis 101. The chassis 101 has four holes for easy fixing of the device with screws. The filter unit 102 passes through the four holes, and each hole has a sealing washer 103 fitted at both ends. Then, fix and connect the metal guide rod 104. Insert the limiting bolt 105, the washer 106, and the adjusting bolt 107 into the outer surface of the metal guide rod 104 in sequence. This is used to adjust the frequency of the metal guide rod 104, which is connected to the inside, by turning the adjusting bolt 107. A terminal base 201 is installed at each of the front and rear ends of 102. The terminal base 201 has four slots for connecting the filter unit 102. A conductive sheet 203 is fixed at the bottom of each of the four slots. The conductive sheet 203 is used to connect the wires. A guide strip 202 is fixed at the top of each of the four slots. The guide strip 202 is used to realize the electrical connection between the wires and the filter unit 102. The top of the terminal base 201 has four screw holes. A fastening screw 204 is inserted into each screw hole. The fastening screw 204 is used to tighten against the guide strip 202 to secure the wires.

[0021] In some embodiments, according to Figure 2 As shown, the phase change heat dissipation assembly 3 includes a main heat dissipation grille 301 and two phase change boxes 302. The main heat dissipation grille 301 is directly attached to one side of the outer surface of the resonant filter assembly 1 and is used to dissipate heat from the top of the filter device. The two phase change boxes 302 are encapsulated with paraffin material and heat dissipation is achieved through the phase change of paraffin when the temperature changes. Each phase change box 302 has an auxiliary heat dissipation grille 303 on one side of its outer wall and is used to dissipate heat from the two phase change boxes 302. Each phase change box 302 has two thermally conductive copper rings 304 inserted into its inner surface. All four thermally conductive copper rings 304 penetrate the resonant filter assembly 1 and are used to provide auxiliary heat conduction between the two phase change boxes 302 and the resonant filter assembly 1. Sealing gaskets 305 are fitted at the two ends where the outer surfaces of the four thermally conductive copper rings 304 intersect with the phase change boxes 302.

[0022] The overall effect of this embodiment is as follows: A complete small-volume, low-frequency, ultra-wideband LC filter is formed using the aforementioned components. The filter unit 102 of the resonant filter component 1 is responsible for the operation of the filtering function. The chassis 101 fixes the entire device. The eight sealing washers 103 at both ends of the filter unit 102 are responsible for sealing the opening after the heat-conducting copper ring 304 passes through. The frequency of the metal guide rod 104 connected to the interior is adjusted by turning the adjusting bolt 107. The limiting bolt 105 and the washer 106 limit the position of the adjusting bolt 107 to prevent excessive turning and damage to the device. The wiring port assembly... Component 2 is fixed at the intersection of chassis 101 and filter unit 102. The filter unit 102 has a terminal base 201 at both the front and rear. Each terminal base 201 has four slots, with a conductive sheet 203 fixed to its bottom for connecting wires, and a guide strip 202 fixed to its top for connecting the wires to internal components. Four screw holes on the top of the terminal base 201 are fitted with fastening screws 204 to tighten against the guide strips 202, thus securing the wires. The main heat dissipation grille 301 in the phase change heat dissipation assembly 3 is attached to the top surface of the filter unit 102. The surface provides heat dissipation. Phase change boxes 302 are tightly attached to both sides of the filter unit 102. The two phase change boxes 302 are encapsulated with paraffin wax. When a high-power current passes through, a large amount of heat energy enters the paraffin wax through the surface of the filter unit 102 and the phase change boxes 302. At this time, the solidified paraffin wax rapidly absorbs heat and changes phase to liquid. Simultaneously, the thermally conductive copper ring 304 penetrating between the filter unit 102 and the phase change boxes 302 greatly accelerates this process. Meanwhile, the sealing gasket 305 seals the through opening of the phase change boxes 302 to prevent paraffin wax leakage. The two phase change boxes 302 are positioned relative to the other side of the filter unit 102. Each side is closely fitted with auxiliary heat dissipation grilles 303, which can assist in heat dissipation when the heat exceeds the absorption range of paraffin wax. When low-power current is used and heat dissipation is not required, each component quickly releases heat, and at the same time, the paraffin wax changes from liquid to solid. Compared with traditional devices, this device avoids the problem of severe heat accumulation and inability to quickly dissipate internal heat in low-frequency, high-power application scenarios, effectively delaying component wear and greatly extending the service life of the device, thereby significantly reducing production costs. It effectively balances practicality and functionality in daily use, and can greatly improve production efficiency.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any other way. Any person skilled in the art may make changes to the above-disclosed technical content and apply equivalent embodiments to other fields. However, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A small-volume, low-frequency, ultra-wideband LC filter, characterized in that: It includes a resonant filter component (1), a wiring port component (2) and a phase change heat dissipation component (3). The wiring port component (2) is located on one side of the outer surface of the resonant filter component (1), and the phase change heat dissipation component (3) covers three sides of the outer surface of the resonant filter component (1). The phase change heat dissipation component (3) includes a main heat dissipation grille (301) and two phase change boxes (302). The main heat dissipation grille (301) is directly attached to one side of the outer surface of the resonant filter component (1) and is used to dissipate heat from the top of the filter device. The two phase change boxes (302) are encapsulated with paraffin material and heat dissipation is achieved through the phase change generated by the paraffin when the temperature changes. The outer wall of each of the two phase change boxes (302) is provided with an auxiliary heat dissipation grille (303) and the two auxiliary heat dissipation grilles (303) are used to dissipate heat from the two phase change boxes (302). Two thermally conductive copper rings (304) are inserted into the inner surface of each phase change box (302). The four thermally conductive copper rings (304) penetrate the resonant filter component (1) and are used to provide auxiliary heat conduction between the two phase change boxes (302) and the resonant filter component (1).

2. The small-volume low-frequency ultra-wideband LC filter according to claim 1, characterized in that: Sealing gaskets (305) are fitted at the two ends where the outer surfaces of the four thermally conductive copper rings (304) intersect with the phase change box (302).

3. A small-volume, low-frequency, ultra-wideband LC filter according to claim 2, characterized in that: The resonant filter assembly (1) includes a chassis (101), and a filter unit (102) is fixedly connected to the top of the chassis (101). Two holes are respectively passed through the two ends of the outer wall of the filter unit (102), and a sealing gasket (103) is fitted on both ends of the inner surface of the four holes.

4. A small-volume, low-frequency, ultra-wideband LC filter according to claim 3, characterized in that: Both sides of the outer wall of the filter unit (102) are fixedly connected to the phase change box (302).

5. A small-volume, low-frequency, ultra-wideband LC filter according to claim 3, characterized in that: The filter unit (102) has a metal guide rod (104) at one end of its outer wall. A limiting bolt (105) is fitted on the outer surface of the metal guide rod (104). A gasket (106) is provided on one side of the outer wall of the limiting bolt (105). An adjusting bolt (107) is provided on one side of the outer wall of the gasket (106).

6. A small-volume, low-frequency, ultra-wideband LC filter according to claim 1, characterized in that: The wiring port assembly (2) includes a terminal base (201), with four guide strips (202) inserted into the inner wall of the terminal base (201), and four conductive sheets (203) connected to the bottom of the inner wall of the terminal base (201).

7. A small-volume, low-frequency, ultra-wideband LC filter according to claim 6, characterized in that: The terminal base (201) has four screw holes on its top, and fastening screws (204) are inserted into the inner surfaces of the four screw holes.

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