Active filtering mechanism
By designing a structure including a shell, a control board, a heat dissipation device and multiple sets of heat dissipation parts in the active filter mechanism, and using an air guide hood to form an airflow for heat dissipation, the problem of poor heat dissipation in the prior art is solved, and effective heat dissipation is achieved while reducing the volume of the equipment.
Patent Information
- Application Number
- CN202421313188.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing active filter mechanism has poor heat dissipation effect, which leads to the need to increase the housing to improve heat dissipation, which in turn affects the installation and assembly of the equipment.
An active filtering mechanism is designed, including a housing, a control board, a heat dissipation device and multiple sets of heat dissipation parts. The heat dissipation device forms an airflow through an air guide hood and blows out from the air outlet, for heat dissipation of the heat dissipation part and the IGBT module, and heat dissipation of the control panel through the airflow.
With this structure, not only can the volume of the active filter mechanism be reduced, but it can also effectively dissipate heat, solving the problem of poor heat dissipation effect.
Smart Images
Figure CN222852255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of active filtering, in particular to an active filtering mechanism. Background Art
[0002] With the advancement of technology, the research and development of active filters and related applications have progressed rapidly. Active filters have a series of advantages such as high efficiency, strong load capacity, good frequency characteristics, and can amplify useful signals while filtering, and are widely used. In order to increase the heat dissipation effect, the active filter mechanism in the prior art places the components at a longer distance, thereby expanding the space of the shell to achieve the heat dissipation effect. The increase in the shell requires the space for the active filter to be increased at the same time, which is not convenient for the installation and assembly of the active filter.
[0003] Therefore, it is necessary to provide an active filtering mechanism to solve the above technical problems. Utility Model Content
[0004] The utility model provides an active filtering mechanism, which solves the problem of poor heat dissipation effect of the active filtering mechanism in the prior art.
[0005] In order to solve the above technical problems, the technical solution of the utility model is: an active filtering mechanism, including a shell, a control board located in the shell, and a heat dissipation device located on one side of the control board, a plurality of groups of heat sinks and IGBT modules respectively located in the plurality of groups of heat sinks are arranged on the side of the control board close to the heat dissipation device, the heat dissipation device includes a fixing plate fixed in the shell, a heat dissipation assembly fixed in the fixing plate, and an air guide hood fixed on the fixing plate and located between the heat sink and the heat dissipation assembly, the air inlet of the air guide hood is larger than the air outlet of the air guide hood, and the heat sink is connected to the air outlet edge of the air guide hood.
[0006] In the utility model, the heat sink comprises heat sinks symmetrically arranged on both sides of the IGBT module, and the IGBT module is fitted with the heat sinks.
[0007] In the utility model, the heat sink is L-shaped, and the symmetrically arranged heat sinks enclose a cavity to accommodate the IGBT module.
[0008] In the utility model, the heat sink also includes an insulating film cover for wind shielding, the insulating film cover is located in the cavity, and the IGBT module is located in the insulating film cover.
[0009] In the utility model, the heat sink also includes a fixing member, the fixing member is E-shaped, and the symmetrical heat sink and the air guide cover are both connected to the fixing member.
[0010] In the utility model, the shell comprises a front panel, a rear panel opposite to the front panel, and a bottom shell and an upper cover respectively connected to the front panel and the rear panel, and the bottom shell and the upper cover are arranged in relative positions.
[0011] In the utility model, the control board and the bottom shell are spaced apart, and a plurality of supporting nut columns for supporting the control board are arranged on the bottom shell.
[0012] In the utility model, the front panel and the rear panel are both provided with a plurality of air holes, and the air holes are evenly distributed on the front panel and the rear panel respectively.
[0013] In the utility model, a display screen and a light board are also arranged on the front panel. The display screen and the light board are respectively located at two ends of the front panel, and the light board is located on the inner side of the front panel.
[0014] In the utility model, both ends of the front panel are respectively provided with hanging ears, and handles are provided on the hanging ears.
[0015] Compared with the prior art, the utility model has the following beneficial effects: an active filtering mechanism of the utility model, when dissipating heat through active filtering, the heat dissipation component forms an airflow with air and blows it into the air inlet of the air guide cover and blows it out from the air outlet of the air guide cover, thereby dissipating heat for the heat sink, and the heat sink dissipates heat for the IGBT module, and the airflow passing through the heat sink is simultaneously blown into the rear of the heat sink to dissipate heat for the control board. Through the above structure, not only the volume of the active filtering mechanism can be reduced, but also the heat dissipation can be well performed while reducing the volume of the active filtering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the utility model.
[0017] Figure 1 A three-dimensional active filter mechanism of the utility model Figure 1 .
[0018] Figure 2 A three-dimensional active filter mechanism of the utility model Figure 2 .
[0019] Figure 3 It is an exploded diagram of an active filtering mechanism of the utility model.
[0020] Figure 4 The utility model is a three-dimensional diagram of a control board of an active filtering mechanism.
[0021] Figure 5for Figure 4 A partial enlarged view of part A.
[0022] Figure 6 The utility model is a three-dimensional diagram of a heat sink of an active filtering mechanism.
[0023] Figure 7 It is a side view of an active filtering mechanism of the utility model.
[0024] Figure 8 for Figure 7 Section view taken along the cutting line AA. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0026] Unless otherwise defined, technical or scientific terms used herein shall have the common meanings understood by one of ordinary skill in the art to which the present disclosure belongs.
[0027] The words "first", "second" and similar words used in the patent application specification and claims of this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.
[0029] The following is a preferred embodiment of an active filtering mechanism provided by the utility model that can solve the above technical problems.
[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 ,in Figure 1 A three-dimensional active filter mechanism of the utility model Figure 1 , Figure 2 A three-dimensional active filter mechanism of the utility model Figure 2 , Figure 3 This is an exploded diagram of an active filtering mechanism of the utility model. Figure 7 It is a side view of an active filtering mechanism of the utility model. Figure 8 for Figure 7 Section view along the cutting line AA.
[0031] In the figures, structurally similar elements are denoted by the same reference numerals.
[0032] The words "first", "second" and the like in the terminology of the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be construed as limiting the order of precedence.
[0033] The utility model provides an active filtering mechanism, comprising a housing 11, a control board 12 located in the housing 11, and a heat sink 13 located at one side of the control board 12. A plurality of heat sinks 121 and IGBT modules respectively located in the plurality of heat sinks 121 are arranged on one side of the control board 12 close to the heat sink 13. The heat sink 13 comprises a fixing plate 131 fixed in the housing 11, a heat sink assembly 132 fixed in the fixing plate 131, and an air guide 133 fixed on the fixing plate 131 and located between the heat sink 121 and the heat sink assembly 132. The air inlet of the air guide 133 is larger than the air outlet of the air guide 133. The heat sink 121 is connected to the air outlet edge of the air guide 133. The housing 11 is used to install the control board 12 and the heat sink 13. The heat sink 121 and the IGBT module are installed in the control board 11. On the board 12, the IGBT module is located in the heat sink 121, and the IGBT module dissipates heat through the heat sink 121. When the heat sink 13 is started to dissipate heat, the heat sink assembly 132 forms an airflow with air, which is blown in from the air inlet of the air guide cover 133 and blown out from the air outlet of the air guide cover 133, and the heat sink 121 is located at the air outlet of the air guide cover 133. On the one hand, the heat sink assembly 132 can dissipate heat for the heat sink 121 very well, and the airflow is blown out from the rear of the heat sink 121 after passing through the heat sink 121, and at the same time, the control board 12 as a whole can be dissipated heat. The structural layout is compact, and the heat sink 121 can dissipate heat very well. Through the above structure, not only the volume of the active filtering mechanism can be reduced, but also the control board 12 as a whole can be dissipated heat well, and the volume of the active filtering mechanism can be reduced while the heat can be dissipated very well.
[0034] In this embodiment, the IGBT module is an insulated gate bipolar transistor, which is a composite fully controlled voltage-driven power semiconductor device composed of a BJT (bipolar junction transistor) and a MOS (insulated gate field effect transistor).
[0035] In this embodiment, the heat dissipation component 132 is a fan, but is not limited to using only a fan.
[0036] Please refer to Figure 4 , Figure 5 and Figure 6 , Figure 4 This is a three-dimensional diagram of a control board of an active filtering mechanism of the utility model. Figure 5 for Figure 4 A partial enlarged view of part A. Figure 6It is a three-dimensional diagram of a heat sink of an active filtering mechanism of the utility model, the heat sink 121 includes heat sinks 1211 symmetrically arranged on both sides of the IGBT module, the IGBT module is fitted with the heat sink 1211, the heat sink 1211 is L-shaped, and the symmetrically arranged heat sinks 1211 enclose a cavity to accommodate the IGBT module, the heat sink 121 also includes an insulating film cover 1213 for windproofing, the insulating film cover 1213 is located in the cavity, the IGBT module is located in the insulating film cover 1213, the insulating film cover 1213 is located in the cavity between the symmetrical heat sinks 1211, dustproofing the IGBT module and isolating airflow, the IGBT module is fitted with the heat sink 1211, the IGBT module introduces heat into the heat sink 1211, and when the airflow passes through the heat sink 1211, the heat sink 1211 is cooled, thereby cooling the IGBT module.
[0037] The heat sink 121 also includes a fixing member 1212, which is E-shaped. The symmetrical radiator 1211 and the air guide cover 133 are both connected to the fixing member 1212. The E-shaped fixing member 1212 facilitates fixing the symmetrical radiator 1211. At the same time, the top also facilitates fixing the air guide cover 133, so that the radiator 1211 can be firmly connected to the air outlet of the air guide cover 133, and the heat dissipation effect of the heat dissipation assembly 132 on the radiator 1211 is better.
[0038] The housing 11 includes a front panel 111, a rear panel 114 opposite to the front panel 111, and a bottom shell 112 and an upper cover 113 respectively connected to the front panel 111 and the rear panel 114. The bottom shell 112 and the upper cover 113 are arranged in relative positions. The front panel 111 and the rear panel 114 are both provided with a plurality of air holes 1114, and the air holes 1114 are respectively evenly distributed on the front panel 111 and the rear panel 114. The control board 12 is spaced apart from the bottom shell 112, and a plurality of supporting nut columns for supporting the control board 12 are provided on the bottom shell 112. The front panel 111 is used for air to enter the housing 11, and the rear panel 114 is used for air to flow out. The bottom shell 112 is used to fix the control board 12, and the upper cover 113 is used to close the bottom shell 112. At the same time, the control board 12 is connected to the supporting nut columns to prevent the control board 12 from directly contacting the bottom shell 112, which can effectively prevent the heat generated by the control board 12 from being conducted to the bottom shell 112.
[0039] A display screen 1111 and a light board 1115 are also provided on the front panel 111. The display screen 1111 and the light board 1115 are respectively located at the two ends of the front panel 111. The light board 1115 is located on the inner side of the front panel 111. Ears 1112 are also provided at the two ends of the front panel 111. The ear 1112 is provided with a handle 1113. The light board 1115 is used to display the power-on status of the active filter. The display screen 1111 is used to view and control the active filter mechanism. The ear 1112 is used to facilitate the installation of the handle 1113. The handle 1113 is used to facilitate the movement of the active filter mechanism.
[0040] Working principle:
[0041] When the active filter mechanism is dissipating heat, first, the heat dissipation component 132 is started, and the heat dissipation component 132 allows air to enter the housing 11 from the air hole 1114 of the front panel 111. The heat dissipation component 132 forms an airflow from the air inlet of the air guide cover 133 and blows out from the air outlet of the air guide cover 133. The air guide cover 133 is fixed to the radiator 1211 through the fixing member 1212, and the radiator 1211 is connected to the air outlet of the air guide cover 133. The IGBT module conducts heat to the radiator 1211, and the airflow passes through the radiator 1211 and dissipates heat to the radiator 1211. Since the IGBT module is located in the insulating film cover 1213, the insulating film cover 1213 can be very The IGBT module is well protected to prevent dust from being adsorbed on the IGBT module. The airflow passing through the radiator 1211 dissipates heat to the control board 12 from the rear of the radiator 1211. Finally, the airflow is blown out from the air holes 1114 of the rear panel 114, thereby dissipating heat inside the active filtering mechanism. The IGBT module of the active filtering mechanism is arranged on the control board 12, the radiator 1211 is connected and located above the IGBT module, and the air guide cover 133 is fixed to the radiator 1211 through the fixing member 1212. The heat dissipation device 13 dissipates heat to the heat sink 121 and can also dissipate heat to the control board 12 as a whole. It has a simple structure and a compact layout, and can also dissipate heat well while reducing the volume of the active filtering mechanism.
[0042] When an active filtering mechanism of the preferred embodiment performs heat dissipation through active filtering, the heat dissipation component forms an airflow through the air inlet of the air guide cover and blows it out from the air outlet of the air guide cover, thereby dissipating the heat dissipation element, and the heat dissipation element dissipates the IGBT module. The airflow passing through the heat dissipation element is simultaneously blown into the rear of the heat dissipation element to dissipate the control board. Through the above structure, not only the volume of the active filtering mechanism can be reduced, but also the heat dissipation can be well performed while reducing the volume of the active filtering mechanism.
[0043] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.
Claims
1. An active filtering mechanism, characterized in that: It includes a shell, a control board located in the shell, and a heat dissipation device located on one side of the control board. A plurality of heat dissipation elements and IGBT modules respectively located in the plurality of heat dissipation elements are arranged on one side of the control board close to the heat dissipation device. The heat dissipation device includes a fixing plate fixed in the shell, a heat dissipation assembly fixed in the fixing plate, and an air guide hood fixed on the fixing plate and located between the heat dissipation elements and the heat dissipation assembly. The air inlet of the air guide hood is larger than the air outlet of the air guide hood, and the heat dissipation element is connected to the air outlet edge of the air guide hood.
2. The active filtering mechanism according to claim 1, characterized in that: The heat sink comprises heat sinks symmetrically arranged on both sides of the IGBT module, and the IGBT module is bonded to the heat sinks.
3. The active filtering mechanism according to claim 2, characterized in that: The heat sink is L-shaped, and the symmetrically arranged heat sinks enclose a cavity to accommodate the IGBT module.
4. The active filtering mechanism according to claim 3, characterized in that: The heat sink also includes an insulating film cover for wind shielding, the insulating film cover is located in the cavity, and the IGBT module is located in the insulating film cover.
5. The active filtering mechanism according to claim 2, characterized in that: The heat sink also includes a fixing member, which is E-shaped, and the symmetrical heat sink and the air guide cover are both connected to the fixing member.
6. The active filtering mechanism according to claim 1, characterized in that: The housing comprises a front panel, a rear panel opposite to the front panel, and a bottom shell and an upper cover respectively connected to the front panel and the rear panel, wherein the bottom shell and the upper cover are arranged in opposite positions.
7. The active filtering mechanism according to claim 6, characterized in that: The control board is spaced apart from the bottom shell, and a plurality of supporting nut columns for supporting the control board are arranged on the bottom shell.
8. The active filtering mechanism according to claim 6, characterized in that: The front panel and the rear panel are both provided with a plurality of air holes, and the air holes are evenly distributed on the front panel and the rear panel respectively.
9. The active filtering mechanism according to claim 6, characterized in that: The front panel is also provided with a display screen and a light board, the display screen and the light board are respectively located at two ends of the front panel, and the light board is located on the inner side of the front panel.
10. The active filtering mechanism according to claim 6, characterized in that: Both ends of the front panel are respectively provided with hanging ears, and handles are provided on the hanging ears.