Active filter
By incorporating a guide plate and capacitor limiting design in the active filter, the airflow is directed to the heat dissipation channel, solving the problem of excessive size caused by the air guide shroud and achieving a compact design and efficient heat dissipation for the active filter.
Patent Information
- Application Number
- CN202520048761.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-08
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-08
AI Technical Summary
In existing active filter heat dissipation devices, the air guide shroud is placed between the heat sink and the heat sink, resulting in an excessively large active filter size.
An active filter is designed by setting a first guide plate on one side of the heat dissipation device, using the heat dissipation component to form an airflow to dissipate heat from the heat sink, and by limiting the airflow through the guide plate and capacitor, the airflow is concentrated and blown into the heat dissipation channel, reducing the distance between the heat dissipation component and the heat sink, forming an effective heat dissipation channel and saving space.
This effectively reduces the size of the active filter while improving heat dissipation efficiency, ensuring the heat dissipation effect of the SI CMOS module and inductor.
Smart Images
Figure CN223713946U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to active filter technical field, especially active filter of a kind of. BACKGROUND
[0002] With the progress of technology, active filter research and development and related application progress rapidly, active filter has a series of advantages such as high efficiency, strong load capacity, good frequency characteristic, and can amplify useful signal while filtering, and is widely used. The heat dissipation device of active filter in prior art is provided with a wind deflector, the wind deflector is arranged between the heat dissipation piece and the radiator, and the wind deflector between the heat dissipation piece and the radiator invisibly increases the area of the power filter board, thereby causing the large volume of the active filter.
[0003] Therefore, it is necessary to provide an active filter to solve the above technical problems. UTILITY MODEL CONTENT
[0004] The utility model provides a kind of active filter, solve the problem that the heat dissipation device of active filter in prior art is wind deflector, to peak value setting between heat dissipation piece and radiator causes the large volume of active filter.
[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: an active filter, comprising a shell, a power filter board located in the shell, a heat dissipation device located on one side of the shell, a plurality of SICMOS modules are arranged on the power filter board, the heat dissipation device comprises a plurality of heat dissipation pieces, a plurality of radiators corresponding to the plurality of heat dissipation pieces and located on one side of the SICMOS module, and a first guide plate located on one side of the radiator for heat dissipation of the radiator, a first heat dissipation channel for heat dissipation of the radiator is formed between the first guide plate and the power filter board.
[0006] In the utility model, a plurality of capacitors are further arranged on the power filter board, a plurality of the capacitors are located on both sides of the radiator respectively, a channel for direct blowing of the heat dissipation piece is formed between adjacent capacitors, and the radiator is located in the channel.
[0007] In the utility model, the radiator comprises a fixing block and a plurality of heat dissipation plates vertically and spaced apart from the fixing block.
[0008] In the utility model, the power filter board is further provided with a plurality of inductors corresponding to the radiator respectively, and the radiator is located between the inductor and the heat dissipation piece.
[0009] In the utility model, the rear side of the shell is further provided with a wall-penetrating terminal and a power strip connected to the wall-penetrating terminal, and the other end of the power strip is connected to the power filter board.
[0010] The utility model discloses, the power row includes the first electric row of connecting on the wall -penetrating terminal, vertical connection on the first electric row's second electric row and the third electric row of connecting respectively at second electric row both ends, the other end of third electric row connects between adjacent inductance, and the first electric row with second electric row is suspended and sets up.
[0011] The utility model discloses, still be provided with the second guide plate of being located inductance one side in the shell, form second heat dissipation channel between second guide plate, power filter board and inductance, and third electric row is located in second heat dissipation channel.
[0012] The utility model discloses, still be provided with the air inlet of the air inlet of the shell's front side for the heat dissipation piece, still be provided with the air outlet of the air outlet of the shell's back for hot air.
[0013] The utility model discloses, the air inlet with air outlet all sets up dust screen.
[0014] The utility model discloses, still be provided with the touch display screen of the shell's front side.
[0015] The utility model discloses, compared with prior art, its beneficial effects are: the active filter of the utility model, through setting first guide plate on one side of heat dissipation device, when heat dissipation piece forms the air current to radiator and blows out and carries out heat dissipation, and first guide plate and power filter board limit the air current, prevent the air current and scatter to the direction of being away from first heat dissipation channel, through above -mentioned setting, can effectively save the interval between heat dissipation piece and radiator, thereby effectively reduce the volume of active filter. ACCURACY
[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following briefly introduces the drawing needed to be used in the embodiment, and the drawing in the following description is only the drawing of part embodiment of the utility model.
[0017] Figure 1 It is the perspective drawing of the active filter of the utility model.
[0018] Figure 2 It is the explosion view of the active filter of the utility model.
[0019] Figure 3 It is the perspective drawing of the power filter board of the active filter of the utility model.
[0020] Figure 4 It is the plan view of the active filter of the utility model.
[0021] Figure 5 It is Figure 4A cross-sectional view taken along the cutting line A-A.
[0022] Figure 6 A perspective view of a power strip of the active filter of the present application.
[0023] Figure 7 A perspective view of a heat sink of the active filter of the present application.
[0024] 11, housing; 111, touch display screen; 112, dustproof net; 12, power filter board; 121, capacitor; 122, inductor; 13, heat dissipation device; 131, heat dissipation piece; 132, heat sink; 1321, fixing block; 1322, heat dissipation plate; 133, first guide plate; 134, second guide plate; 123, SIMOS module; 124, first heat dissipation channel; 125, second heat dissipation channel; 126, power strip; 127, through-wall terminal; 1261, first power strip; 1262, second power strip; 1263, third power strip. DETAILED DESCRIPTION
[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments of the present disclosure. Based on the described embodiments of the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present disclosure.
[0026] Unless otherwise defined, the technical terms or scientific terms used herein should be understood as their common meanings to those skilled in the art to which the present disclosure pertains.
[0027] The terms "first", "second", and similar terms used in the patent application specification and claims of the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects appearing before the "include" or "contain" cover the elements or objects listed after the "include" or "contain" and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0029] The following is a preferred embodiment of an active filter provided by the present application which can solve the above technical problems.
[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , wherein Figure 1 is a perspective view of the active filter of the present application, Figure 2 is an exploded view of the active filter of the present application, Figure 3 is a perspective view of the power filter plate of the active filter of the present application, Figure 4 is a top view of the active filter of the present application, Figure 5 is Figure 4 a sectional view along the cutting line A-A in
[0031] In the drawings, similar units are denoted by the same reference numerals.
[0032] The terms "first", "second" and the like in the present application are only for the purpose of description, and cannot be understood as indicating or implying relative importance, and are not limited as the order of priority.
[0033] The utility model provides a kind of active filter, including shell 11, power filter plate 12 in shell 11, heat dissipation device 13 in one side of shell 11, power filter plate 12 is provided with multiple groups SICMOS module 123, heat dissipation device 13 includes multiple groups of heat dissipation piece 131, radiator 132 respectively with multiple groups of heat dissipation piece 131 correspond and located SICMOS module 123 one side, and first guide plate 133 for radiator 132 heat dissipation located one side of radiator 132, first guide plate 133 and power filter plate 12 form first heat dissipation passage 124 for the heat dissipation of radiator 132 between, shell 11 is used to install power filter plate 12 and heat dissipation device 13, heat dissipation device 13 is used to heat dissipation for power filter plate 12 and SICMOS module 123, heat dissipation piece 131 is used to inhale external air and form airflow to blow into shell 11, radiator 132 is used to cool SICMOS module 123, since first guide plate 133 is located one side of radiator 132, first guide plate 133 is used to limit wind direction, first guide plate 133 limit airflow to blow into the direction of radiator 132, when cooling SI CMOS module 123, first, radiator 132 starts, radiator 132 adsorbs external air and forms airflow to blow into shell 11, and SI CMOS module 123 is located above radiator 132, the heat emitted by SI CMOS module 123 is absorbed by radiator 132, when airflow enters into shell 11, first air deflector limits airflow to blow into the direction of radiator 132, airflow carries away the heat of radiator 132 when passing through radiator 132, to reach the heat dissipation of radiator 132, simultaneously, also reach the cooling effect of SI CMOS module 123, by above-mentioned structure, not only can effectively active filter's volume, simultaneously, can also effectively heat dissipation for SI CMOS module 123.
[0034] In the embodiment, the SI CMOS module 123 is a power semiconductor device based on silicon carbide material, has a metal-oxide-semiconductor field effect transistor, and has characteristics of high temperature resistance, high frequency resistance and high voltage resistance, and is an important component of the third generation semiconductor material.
[0035] In the embodiment, the heat dissipation piece 131 is a heat dissipation fan, but is not limited to only using the heat dissipation fan.
[0036] The power filter board 12 is further provided with a plurality of capacitors 121, the capacitors 121 are respectively located on two sides of the radiator 132, channels for the straight blowing of the heat dissipation member 131 are formed between adjacent capacitors 121, and the radiator 132 is located in the channels; when the airflow blows in the direction of the radiator 132, the airflow is limited by the capacitors 121 on two sides of the radiator 132, so that the airflow is concentrated to blow in the direction of the radiator 132, on the one hand, the efficiency of heat dissipation of the radiator 132 is improved, and on the other hand, the airflow blows to the capacitors 121, and the capacitors 121 are simultaneously radiated.
[0037] Please refer to Figure 7 The radiator 132 comprises a fixed block and a plurality of heat dissipation plates 1322 which are vertically and spacedly arranged on the fixed block 1321, the fixed block 1321 is close to one side of the SCMOS module 123, and is used for increasing the heat absorption area of the radiator 132; the heat dissipation plates 1322 are spacedly arranged, so that the airflow blows in from two sides of the heat dissipation plates 1322, and the heat dissipation of the radiator 132 is effectively improved.
[0038] The power filter board 12 is further provided with a plurality of inductors 122 which are respectively corresponding to the radiators 132, the radiators 132 are located between the inductors 122 and the heat dissipation member 131, the inductors 122 are located on one side of the radiators 132, and the airflow passing through the radiators 132 blows in the direction of the inductors 122, so that the inductors 122 are further radiated.
[0039] The rear side of the shell 11 is further provided with a wall-penetrating terminal 127 and a power strip 126 which is connected to the wall-penetrating terminal 127, one end of the power strip 126 is connected to the power filter board 12, the wall-penetrating terminal 127 is used for being connected to an external power supply, and the power strip 126 is connected to the power filter board 12 and the wall-penetrating terminal 127, so as to provide power for the active filter.
[0040] Please refer to Figure 6 , Figure 6 It is a perspective view of the power strip of the active filter, the power strip 126 comprises a first power strip 1261 which is connected to the wall-penetrating terminal, a second power strip 1262 which is vertically connected to the first power strip 1261, and a third power strip 1263 which is connected to two ends of the second power strip 1262 respectively, and the other end of the third power strip 1263 is connected between adjacent inductors 122; the first power strip 1261 and the second power strip 1262 are suspendedly arranged, the first power strip 1261 and the second power strip 1262 which are suspendedly arranged are used for increasing the distance from the power filter board 12, preventing the current carrying of the power filter board 12 from being insufficient, and playing an isolating and insulating role.
[0041] The shell 11 is further provided with a second guide plate 134 on one side of the inductor 122, and a second heat dissipation channel 125 is formed between the second guide plate 134, the power filter plate 12 and the inductor 122. The third electric row 1263 is located in the second heat dissipation channel 125. The air current blown from the first heat dissipation channel 124 blows into the direction of the inductor 122, and the air current cannot pass through the inductor 122. When the air current contacts the inductor 122, the air current is dispersed from both sides of the inductor 122. The air current enters the second heat dissipation channel 125. The second guide plate 134 limits the air current entering the second heat dissipation channel 125, prevents the air current entering the second heat dissipation channel 125 from being dispersed, and can dissipate heat for the third electric row 1263.
[0042] The front side of the shell 11 is further provided with an air inlet for the heat dissipation piece 131, and the rear side of the shell 11 is further provided with an air outlet for discharging the hot air. The air inlet facilitates the outside air to enter the shell 11 for the heat dissipation piece 131 to absorb. The air outlet is used for discharging the air after heat dissipation, so as to prevent the air current with hot air from staying in the shell 11.
[0043] The air inlet and the air outlet are both provided with a dust screen 112, which is used to prevent sundries from entering the shell 11.
[0044] The front side of the shell 11 is further provided with a touch display screen 111, which is used to control and control the active filter mechanism. The touch display screen 111 is more convenient to operate and control the active filter mechanism.
[0045] Working principle:
[0046] When the active filter is used, the heat dissipation piece 131 sucks the air outside the shell 11 into the shell 11 from the outside of the shell 11, the air enters the shell 11 from the air inlet, the heat dissipation piece 131 blows the air into the direction of the radiator 132, and due to the limiting of the first guide plate 133 and the capacitor 121, the first guide plate 133 and the capacitor 121 limit the air flow to blow into the first heat dissipation channel 124 in the direction of the radiator 132, and the heat generated by the SCMOS module 123 during operation is absorbed by the radiator 132, when the air flow contacts the radiator 132, the air flow passes through the gap between the adjacent heat dissipation plates 1322 and takes away the heat on the heat dissipation plates 1322, so that the radiator 132 is cooled, when the air flow passes through the radiator 132, and the inductor 122 is located at the rear side of the radiator 132, the air flow passing through the radiator 132 contacts the inductor 122, and the inductor 122 is cooled, and simultaneously, due to the fact that the air flow cannot pass through the inductor 122, the air flow contacting the inductor 122 enters the second heat dissipation channel 125 on both sides of the inductor 122, under the limiting of the second guide plate 134, the second guide plate 134 prevents the air flow from blowing away from the second heat dissipation channel 125, so that the air flow can effectively cool the power row 126, and the first guide plate 133 is arranged on one side of the radiator 132, so that the distance between the heat dissipation piece 131 and the radiator 132 can be effectively shortened, thereby effectively reducing the volume of the active filter.
[0047] In conclusion, although the utility model has disclosed as above with preferred embodiments, the preferred embodiments are not used to limit the utility model, and the ordinary skilled in the art can make various changes and decorations without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model is subject to the range defined by the claims.
Claims
1. An active filter, characterized in that, The device includes a housing, a power filter board located inside the housing, and a heat dissipation device located on one side of the housing. The power filter board is provided with multiple sets of SICMOS modules. The heat dissipation device includes multiple sets of heat sinks, heat sinks corresponding to the multiple sets of heat sinks and located on one side of the SICMOS modules, and a first guide plate located on one side of the heat sink for heat dissipation of the heat sink. A first heat dissipation channel for heat dissipation of the heat sink is formed between the first guide plate and the side wall of the power filter board.
2. The active filter according to claim 1, characterized in that, The power filter board is also provided with multiple capacitors, which are located on both sides of the heat sink. Adjacent capacitors form a channel for the heat sink to blow air directly through, and the heat sink is located in the channel.
3. The active filter according to claim 1, characterized in that, The radiator includes a fixed block and a plurality of heat dissipation plates that are perpendicular to and spaced apart from the fixed block.
4. The active filter according to claim 1, characterized in that, The power filter board is also provided with a plurality of inductors, each corresponding to the heat sink, and the heat sink is located between the inductors and the heat sink.
5. The active filter according to claim 4, characterized in that, The rear side of the housing is also provided with a wall-penetrating terminal and a power bus connected to the wall-penetrating terminal, and the other end of the power bus is connected to the power filter board.
6. The active filter according to claim 5, characterized in that, The power bus includes a first bus connected to the through-wall terminal, a second bus vertically connected to the first bus, and a third bus connected to both ends of the second bus. The other end of the third bus is connected between adjacent inductors, and the first bus and the second bus are suspended.
7. The active filter according to claim 6, characterized in that, The housing also includes a second guide plate located on one side of the inductor. The second guide plate, the power filter plate, and the inductor form a second heat dissipation channel, and the third busbar is located within the second heat dissipation channel.
8. The active filter according to claim 1, characterized in that, The front side of the housing is provided with an air inlet for the heat sink to enter, and the rear side of the housing is provided with an air outlet for hot air to exit.
9. The active filter according to claim 8, characterized in that, Both the air inlet and the air outlet are equipped with dustproof nets.
10. The active filter according to claim 1, characterized in that, A touch screen is also provided on the front side of the housing.