Filter

Abstract

The utility model provides a filter. The filter of the utility model comprises a housing; a resonator accommodated in the housing and having a center line; and the cooling pipeline surrounds the outer side of the resonator, the cooling pipeline is configured to be a spiral component and extends in the circumferential direction of the center line, a refrigerant can be conveyed in the cooling pipeline, and heat generated by the resonator is guided out of the shell. According to the technical scheme, the problem that a filter in the prior art is poor in heat dissipation effect is solved.

Description

Technical Field

[0001] The present invention relates to the field of filters, and specifically provides a filter. Background Art

[0002] Any electronic product generates heat to a certain extent when powered on, and filters are no exception. Typically, filters generate very little heat in low-current mode. However, in high-dynamic current mode, due to the material properties and the filter's filtering principle, the filter material will experience significant energy loss. This energy loss is then converted into heat and dissipated. If this heat is not dissipated promptly, or if the heat cannot be quickly reduced, there will be significant risks to the product itself and the filter's filtering effect will be significantly reduced, failing to achieve the intended filtering effect. Existing filters mostly use air cooling, which has poor heat dissipation.

[0003] Therefore, this field needs a new technical solution to solve the above problems. Summary of the Invention

[0004] To address the poor heat dissipation performance of conventional filters, the present invention provides a filter. The filter comprises a housing; a resonator housed within the housing and having a centerline; and a cooling pipe surrounding the resonator. The cooling pipe is configured as a helical member and extends circumferentially around the centerline. A refrigerant can be transported within the cooling pipe to dissipate heat generated by the resonator to the exterior of the housing.

[0005] The filter of the present invention includes a resonator arranged in a shell. Under a large dynamic current mode, the resonator will generate a lot of heat. If the heat continues to accumulate in the shell, it may cause the performance of the components in the filter to degrade or even fail. Through the configuration of the cooling pipeline, the cooling pipeline can export the heat generated by the resonator to the outside of the shell, maintaining the temperature inside the filter always within a reasonable range. The cooling pipeline surrounds the outside of the resonator to fully transfer the heat generated by the resonator. The cooling pipeline is configured as a spiral component and extends in the circumferential direction of the center line, so that the cooling pipeline can surround the outside of the resonator as long as possible to improve the heat dissipation capacity of the cooling pipeline. Through the above-mentioned configuration, the cooling pipeline can not only export the heat generated by the resonator in a timely manner, but also export the heat generated by other electronic devices inside the filter.

[0006] In a preferred technical solution of the above filter, the resonator includes a first resonator and a second resonator, and the cooling pipeline includes a first pipeline surrounding the outside of the first resonator and a second pipeline surrounding the outside of the second resonator.

[0007] In the preferred technical solution of the above filter, the filter further includes a filter circuit assembly, and the filter circuit assembly is disposed between the first resonator and the second resonator. Through the above arrangement, the filter circuit assembly is disposed between the first resonator and the second resonator, so as to electrically connect the two resonators and save space, enabling the filter to be miniaturized.

[0008] In the preferred technical solution of the above filter, the filter circuit assembly includes a first inductor unit and a second inductor unit. The first inductor unit includes a first iron core, and the second inductor unit includes a second iron core; the housing includes a first bracket and a second bracket disposed on both sides of the filter circuit assembly. Both ends of the first bracket are fixedly connected to the first iron core and the second iron core respectively, and enclose a first chamber for accommodating the first resonator with the filter circuit assembly; both ends of the second bracket are fixedly connected to the first iron core and the second iron core respectively, and enclose a second chamber for accommodating the second resonator with the filter circuit assembly. Through the above configuration, the first bracket and the second bracket enclose the main body part of the housing, making the filter housing have supportability. The first bracket and the filter circuit assembly enclose a first chamber for accommodating the first resonator, and the second bracket and the filter circuit assembly enclose a second chamber for accommodating the second resonator, making full use of the space inside the filter, enabling the filter of the present utility model to be miniaturized and intensive as much as possible.

[0009] In the preferred technical solution of the above filter, the cooling pipeline has an inlet and an outlet exposed outside the housing, and the cooling pipeline can be connected to the refrigeration circuit through the inlet and the outlet. Through the above arrangement, the cooling pipeline can serve as an evaporator in the refrigeration circuit to reduce the temperature of the resonator.

[0010] In the preferred technical solution of the above filter, the cooling pipeline is a hollow copper pipe. Copper has good heat conduction performance, and the setting of the hollow copper pipe makes the heat dissipation efficiency of the cooling pipeline relatively high.

[0011] In the preferred technical solution of the above filter, the filter further includes a temperature sensing device, and the temperature sensing device includes a thermocouple in contact with the surface of the cooling pipeline. Through the above arrangement, the temperature sensing device can obtain the temperature inside the housing in real time, so as to adjust the heat dissipation effect of the cooling pipeline according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, in which:

[0013] Figure 1 is a schematic structural diagram of an embodiment of the filter of the present utility model;

[0014] Figure 2 It is a schematic internal structure diagram of an embodiment of the filter of the present utility model;

[0015] Figure 3 is Figure 2 an exploded view of the internal structure of the embodiment of the filter shown.

[0016] List of reference numerals:

[0017] 100, filter; 10, housing; 11, first bracket; 12, second bracket; 13, resin layer; 20, resonator; 21, first resonator; 22, second resonator; 30, cooling pipeline; 31, first pipeline; 32, second pipeline; 33, inlet; 34, outlet; 40, filter circuit assembly; 41, first inductor unit; 411, first iron core; 42, second inductor unit; 421, second iron core; 43, circuit bracket; 50, temperature sensing device; 51, thermocouple. Detailed implementation manners

[0018] The preferred implementation manners of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these implementation manners are only used to explain the technical principle of the present invention and are not intended to limit the protection scope of the present invention.

[0019] It should be noted that in the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] To solve the problem of poor heat dissipation effect of the filter in the prior art, the present utility model provides a filter 100. The filter 100 of the present utility model includes: a housing 10; a resonator 20, the resonator 20 being received in the housing 10 and having a center line; and a cooling pipeline 30, the cooling pipeline 30 surrounding the outside of the resonator 20, the cooling pipeline 30 being configured as a spiral member and extending in the circumferential direction of the center line, and a refrigerant can be conveyed inside the cooling pipeline 30 so that the heat generated by the resonator 20 is conducted out of the housing 10.

[0022] Figure 1 is a schematic structural diagram of an embodiment of the filter of the present utility model;Figure 2 It is a schematic diagram of the internal structure of an embodiment of the filter of the present utility model; Figure 3 It is Figure 2 An exploded view of the internal structure of the embodiment of the filter shown.

[0023] As Figure 1 and Figure 2 As shown in FIGS. and, the filter 100 of the present utility model includes a housing 10 and a resonator 20 disposed within the housing 10. The resonator 20 can be used to implement signal processing functions in various electronic devices. For example, in some communication devices, the resonator 20 is used to implement the filter 100 for transmitting and / or receiving signals. Several different types of resonators can be used according to different applications, such as thin film bulk acoustic resonators (FBAR), coupled resonator filters, etc. When the filter operates in a large dynamic current mode, electronic components such as resonators will generate a large amount of heat. If the heat continues to accumulate, it will affect the performance of the filter. Therefore, the filter 100 of the present utility model further includes a cooling pipeline 30 for dissipating heat from the electronic components within the housing 10, such as the resonator 20, to ensure that the filter 100 can always operate stably.

[0024] As Figure 3 As shown in FIGS., in one or more embodiments, the filter 100 of the present utility model includes two resonators 20, namely a first resonator 21 and a second resonator 22. Alternatively, the number of resonators 20 can also be configured as other suitable numbers according to actual needs, such as 1, 3, etc. In one or more embodiments, the resonator 20 is configured as a substantially cylindrical member and has a center line, i.e., the axis of the cylindrical member. Alternatively, the resonator 20 can also be configured as other suitable shapes.

[0025] Continuing to refer to Figure 3 , the cooling pipeline 30 surrounds the outside of the resonator 20 and is configured as a spiral member. In one or more embodiments, the resonator 20 is a cylindrical member, and the cooling pipeline 30 can be in the shape of a substantially spring, spirally wound around the outside of the resonator 20. The cooling pipeline 30 can extend circumferentially along the center line, i.e., spirally surround the outside of the resonator 20 with a predetermined radius. In alternative embodiments, the resonator 20 has other suitable shapes, and the cooling pipeline 30 can also be formed into other suitable shapes to adapt to the outer shape of the resonator 20 and spirally surround the outside of the resonator 20.

[0026] Continuing to refer to Figure 1 - Figure 3In one or more embodiments, the number of cooling pipes 30 is two: a first pipe 31 surrounding the outside of the first resonator 21 and a second pipe 32 surrounding the outside of the second resonator 22. Alternatively, other suitable numbers of cooling pipes 30 may be provided, such as one cooling pipe 30 surrounding the outside of all resonators 20, or a number greater than two. With the above configuration, a greater number of cooling pipes 30 can more accurately dissipate heat generated by various heat sources within the filter 100.

[0027] In one or more embodiments, the cooling line 30 is configured as a hollow copper tube. A refrigerant can be transported inside the hollow copper tube. The refrigerant can be a gas or liquid with a relatively low temperature that is continuously supplied from the outside, such as cooling water that is continuously supplied from the outside; or it can be a refrigerant that circulates in a refrigeration circuit and can absorb heat through phase change, such as Freon and other refrigerants commonly used in air-conditioning systems. Copper has good thermal conductivity and can transfer the heat generated by electronic components (such as the resonator 20, the inductor coil, etc.) to the refrigerant in a timely manner, so that it can remove the heat from the filter 100. Alternatively, the cooling line 30 can also be made of other materials with good thermal conductivity, such as aluminum.

[0028] Continue reading Figure 1 In one or more embodiments, each cooling line 30 has an inlet 33 and an outlet 34, allowing the cooling line 30 to connect to a refrigeration circuit through the inlet 33 and outlet 34. The refrigeration circuit can be a circulatory system consisting of a condenser, an evaporator, an expansion device, and a compressor, and the cooling line 30 can serve as the evaporator. The inlet 33 and outlet 34 are exposed to the outside of the housing 10, making it easy for operators to connect the inlet 33 and outlet 34 to other pipelines and facilitate subsequent maintenance and repair.

[0029] Continue reading Figure 2 and Figure 3 In one or more embodiments, the filter 100 further includes a filter circuit assembly 40. The filter circuit assembly 40 is disposed between the first resonator 21 and the second resonator 22 so as to fully utilize the space within the filter 100. The filter circuit assembly 40 includes a first inductor unit 41 and a second inductor unit 42. The first inductor unit 41 includes a first iron core 411, and an inductor coil is wound around the outside of the first iron core 411. The second inductor unit 42 includes a second iron core 421, and an inductor coil is also wound around the outside of the second iron core 421 for filtering current and suppressing high-frequency noise. The first iron core 411 and the second iron core 421 are spaced apart from each other and are connected by a circuit bracket 43 to form an "I" shape. Alternatively, the filter circuit assembly 40 can also be configured into other suitable shapes according to actual needs.

[0030] Continue reading Figure 2 andFigure 3 In one or more embodiments, the housing 10 includes a first bracket 11 and a second bracket 12 disposed on both sides of the filter circuit assembly 40. The first bracket 11 is configured to be generally "C"-shaped, and the two ends of the "C" shape are respectively fixedly connected to the first iron core 411 and the second iron core 421, so that the first bracket 11 and the filter circuit assembly 40 enclose a first chamber for accommodating the first resonator 21. The second bracket 12 is also configured to be generally "C"-shaped, and the two ends of the "C" shape are respectively fixedly connected to the first iron core 411 and the second iron core 421, so that the second bracket 12 and the filter circuit assembly 40 enclose a second chamber for accommodating the second resonator 22. The connection manners between the filter circuit assembly 40 and the first bracket 11 and the second bracket 12 include but are not limited to screwing, clamping, bonding, etc. Through the above settings, the first bracket 11, the second bracket 12 and the filter circuit assembly 40 constitute the support structure of the filter 100. In one or more embodiments, the housing 10 further includes a resin layer 13. The resin layer 13 wraps the first bracket 11, the second bracket 12, the cooling pipeline 30, the resonator 20 and the filter circuit assembly 40, so that the filter 100 is protected by the resin layer 13. After the resin layer 13 is molded, it can also form a fixed connection effect on the components in the filter 100.

[0031] In one or more embodiments, the filter 100 further includes a temperature sensing device 50. The temperature sensing device 50 includes a thermocouple 51 in abutting contact with the surface of the cooling pipeline 30. The thermocouple 51 obtains the temperature of the surface of the cooling pipeline 30 as a reference for the temperature inside the filter 100, so as to adjust the refrigerant to timely export the heat inside the filter 100. Alternatively, the temperature sensing device 50 can also obtain the temperature inside the filter 100 by other means.

[0032] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A filter, characterized in that, The filter includes: A housing; A resonator, which is accommodated in the housing and has a center line; and A cooling pipeline, which surrounds the outside of the resonator. The cooling pipeline is configured as a spiral member and extends circumferentially around the center line. Refrigerant can be conveyed inside the cooling pipeline so that the heat generated by the resonator is conducted to the outside of the housing.

2. The filter according to claim 1, wherein The resonator includes a first resonator and a second resonator. The cooling pipeline includes a first pipeline surrounding the outside of the first resonator and a second pipeline surrounding the outside of the second resonator.

3. The filter according to claim 2, wherein The filter further includes a filter circuit assembly, which is disposed between the first resonator and the second resonator.

4. The filter according to claim 3, wherein The filter circuit assembly includes a first inductance unit and a second inductance unit. The first inductance unit includes a first iron core, and the second inductance unit includes a second iron core; The housing includes a first bracket and a second bracket disposed on both sides of the filter circuit assembly. Both ends of the first bracket are fixedly connected to the first iron core and the second iron core respectively, and enclose a first chamber for accommodating the first resonator with the filter circuit assembly; Both ends of the second bracket are fixedly connected to the first iron core and the second iron core respectively, and enclose a second chamber for accommodating the second resonator with the filter circuit assembly.

5. The filter according to claim 1, characterized in that, The cooling pipeline has an inlet and an outlet exposed to the outside of the housing, and the cooling pipeline can be connected to a refrigeration circuit through the inlet and the outlet.

6. The filter according to claim 1, wherein The cooling pipeline is a hollow copper pipe.

7. The filter according to claim 1, characterized in that The filter further includes a temperature sensing device, and the temperature sensing device includes a thermocouple in abutting contact with the surface of the cooling pipeline.

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