Filter

Abstract

The utility model discloses a filter, which comprises a filter, a heat conducting plate and a heat dissipation positioning block, a support frame is arranged at the bottom of the filter; a mounting plate is arranged on one side of the bottom of the support frame; the heat-conducting plate is arranged on the side edge of the filter, and cooling fins are arranged on the side edge of the heat-conducting plate; according to the utility model, through cooperation of the rotary positioning ring and the threaded column in the positioning mechanism, rapid and convenient installation of the filter support frame and the installation plate is realized, no special tool is needed, and convenience and stability of installation are improved; through the combined design of the heat conducting plate and the cooling fins and the cooperation of the cooling positioning blocks and the cooling positioning grooves, the cooling capacity of the filter is greatly enhanced, an efficient cooling system can timely dissipate heat generated when the filter works, performance reduction and even damage caused by overheating of the filter are avoided, and the service life of the filter is prolonged. And the stability and the reliability of the filter in a long-time and high-load working state are ensured, and good filtering performance is always kept.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a filter. Background Technology

[0002] A filter is a filtering circuit composed of capacitors, inductors, and resistors. A filter can effectively filter out specific frequencies or frequencies other than those in a power supply line, resulting in a power signal of a specific frequency, or eliminating a power signal with a specific frequency. In use, a filter allows specific frequencies in a signal to pass through while filtering out other frequencies. A filter maintains a stable current output. Filters can be classified into two types based on the signal they process: analog filters and digital filters.

[0003] In existing technologies, the installation of filters is usually quite complex, often involving welding or riveting. Welding requires specialized welding equipment and skilled welding techniques, making it difficult for ordinary personnel to operate. Moreover, once welding is completed, it is difficult to adjust the position of the filter. If the position is inaccurate, it will affect the coordinated operation of the filter with other devices. Riveting also requires specific tools, is cumbersome, and the position of the filter is fixed after riveting, making it impossible to adjust flexibly. Although the cumbersome multi-part snap-fit ​​connection can achieve installation to some extent.

[0004] In light of this, we introduce a filter. Utility Model Content

[0005] The purpose of this invention is to provide a filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filter, comprising: a filter, a heat-conducting plate, and a heat dissipation positioning block;

[0007] The bottom of the filter is provided with a support frame, which is integrally formed with the filter. A mounting plate is provided on one side of the bottom of the support frame.

[0008] The heat-conducting plate is disposed on the side of the filter, and heat sinks are provided on the side of the heat-conducting plate. The heat-conducting plate and heat sinks work together to further dissipate the heat generated by the filter.

[0009] The heat dissipation positioning block is disposed on the other side of the filter. The side of the filter is provided with a heat dissipation positioning groove for inserting the heat dissipation positioning block. The heat dissipation positioning groove and the filter are integrally formed, and the size of the heat dissipation positioning groove is the same as the size of the heat dissipation positioning block.

[0010] A positioning mechanism is provided between the mounting plate and the support frame. The rotating positioning ring of the positioning mechanism rotates on the surface of the threaded column to fix the support frame and the mounting plate.

[0011] Preferably, the positioning mechanism includes a positioning post connected to the top of the mounting plate, the positioning post being fixedly connected to the mounting plate, the threaded post being connected to the top of the positioning post, the rotating positioning ring being screwed onto the surface of the threaded post, and the rotating positioning ring having an internal thread.

[0012] Preferably, the surface of the threaded post is connected with external thread portions for screwing a rotating positioning ring at equal intervals, and the external thread portions and the threaded post are integrally formed.

[0013] Preferably, the surface of the support frame is provided with a through groove for passing through the positioning post and the threaded post, and the through groove and the support frame are integrally formed.

[0014] Preferably, the surface of the heat-conducting plate is connected with bolts, one end of which passes through the heat-conducting plate and extends into the interior of the filter. The bolts are used to fix the heat-conducting plate to one side of the filter.

[0015] Preferably, the surface of the heat-conducting plate has through holes for bolts to pass through, and the through holes and the heat-conducting plate are integrally formed.

[0016] Preferably, the filter has a conductor connected to its side. The conductor is used to realize the electrical connection between the filter and the external circuit, so that electrical signals can smoothly enter and exit the filter.

[0017] Preferably, the filter has a screw hole inside for screwing bolts, and the screw hole and the filter are integrally formed.

[0018] like Figure 6 As shown:

[0019] After connecting a Zener diode VD1 between the base of VT1 and ground, the input voltage, through R1, reverse-biases the Zener diode VD1. At this point, the Zener characteristic of VD1 stabilizes the base voltage of VT1, thus ensuring a relatively stable DC voltage output from the emitter of VT1. Note: This voltage stability is determined by the Zener characteristic of VD1 and is unrelated to the electronic filter circuit itself.

[0020] R1 also serves as the current-limiting protection resistor for VD1. After adding the Zener diode VD1, changing the value of R1 will not change the magnitude of the emitter output voltage of VT1. Because there is a PN junction voltage drop at the emitter junction of VT1, the emitter output voltage is slightly smaller than the regulated voltage of VD1.

[0021] C1, R1, and VT1 together form an electronic filter circuit, which serves a filtering function.

[0022] In some cases, to further improve the filtering effect, a dual-tube electronic filter circuit can be used, where two electronic filter tubes form a composite tube circuit. The total current amplification factor is thus the product of the current amplification factors of each tube, which obviously improves the filtering effect.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] (1) Through the cooperation of the rotating positioning ring and the threaded column in the positioning mechanism, the filter support frame and the mounting plate can be installed quickly and conveniently without special tools. Ordinary personnel can complete the installation. Moreover, during the installation process, the position of the filter can be adjusted at any time according to actual needs. After installation, it is firmly fixed, which can effectively prevent the filter from loosening due to vibration and other reasons, thus improving the convenience and stability of installation.

[0025] (2) Through the combination design of heat conduction plate and heat sink, as well as the cooperation of heat dissipation positioning block and heat dissipation positioning groove, the heat dissipation capacity of the filter is greatly enhanced. The efficient heat dissipation system can dissipate the heat generated by the filter during operation in a timely manner, and avoid the filter from degrading or even being damaged due to overheating. This not only extends the service life of the filter, but also ensures the stability and reliability of the filter under long-term, high-load working conditions, so that it can always maintain good filtering performance. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the filter structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the heat-conducting plate and heat sink of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure when the filter and heat sink of this utility model are connected;

[0030] Figure 5 This is a structural schematic diagram of the support frame, mounting plate, and positioning mechanism of this utility model;

[0031] Figure 6 This is a schematic diagram of the filter circuit of this utility model.

[0032] In the diagram: 1. Filter; 2. Heat-conducting plate; 3. Heat sink; 4. Bolt; 5. Support frame; 6. Conductor; 7. Mounting plate; 8. Threaded post; 9. Threaded hole; 10. Heat dissipation positioning groove; 11. Heat dissipation positioning block; 12. Through hole; 13. Through groove; 14. Positioning post; 15. Rotary positioning ring; 16. External threaded part. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-6 The present invention provides a technical solution: a filter, comprising: a filter 1, wherein a support frame 5 is provided at the bottom of the filter 1, and a mounting plate 7 is provided on one side of the bottom of the support frame 5;

[0035] Heat-conducting plate 2 is disposed on the side of filter 1, and heat sink 3 is disposed on the side of heat-conducting plate 2;

[0036] A heat dissipation positioning block 11 is disposed on the other side of the filter 1, and a heat dissipation positioning groove 10 for inserting the heat dissipation positioning block 11 is provided on the side of the filter 1.

[0037] A positioning mechanism is provided between the mounting plate 7 and the support frame 5. The rotating positioning ring 15 of the positioning mechanism rotates on the surface of the threaded column 8 so that the rotating positioning ring 15 fixes the support frame 5 and the mounting plate 7.

[0038] The positioning mechanism includes a positioning post 14 connected to the top of the mounting plate 7. The positioning post 14 is fixedly connected to the mounting plate 7. The threaded post 8 is connected to the top of the positioning post 14. The rotating positioning ring 15 is screwed onto the surface of the threaded post 8. The rotating positioning ring 15 has an internal thread.

[0039] The surface of the threaded post 8 is connected with external threaded portions 16 at equal intervals for screwing the rotating positioning ring 15, and the external threaded portions 16 and the threaded post 8 are integrally formed.

[0040] The surface of the support frame 5 is provided with a through groove 13 for passing through the positioning post 14 and the threaded post 8. The through groove 13 and the support frame 5 are integrally formed.

[0041] Bolts 4 are connected to the surface of the heat-conducting plate 2. One end of the bolts 4 passes through the heat-conducting plate 2 and extends into the interior of the filter 1. The bolts 4 are used to fix the heat-conducting plate 2 to one side of the filter 1.

[0042] The surface of the heat-conducting plate 2 is provided with a through hole 12 for the bolt 4 to pass through, and the through hole 12 and the heat-conducting plate 2 are integrally formed.

[0043] The filter 1 is connected to a conductor 6 on its side. The conductor 6 is used to realize the electrical connection between the filter 1 and the external circuit, so that the electrical signal can smoothly enter and exit the filter 1.

[0044] The filter 1 has a screw hole 9 inside for screwing bolts 4, and the screw hole 9 and the filter 1 are integrally formed.

[0045] like Figure 6 As shown:

[0046] After connecting a Zener diode VD1 between the base of VT1 and ground, the input voltage, through R1, reverse-biases the Zener diode VD1. At this point, the Zener characteristic of VD1 stabilizes the base voltage of VT1, thus ensuring a relatively stable DC voltage output from the emitter of VT1. Note: This voltage stability is determined by the Zener characteristic of VD1 and is unrelated to the electronic filter circuit itself.

[0047] R1 also serves as the current-limiting protection resistor for VD1. After adding the Zener diode VD1, changing the value of R1 will not change the magnitude of the emitter output voltage of VT1. Because there is a PN junction voltage drop at the emitter junction of VT1, the emitter output voltage is slightly smaller than the regulated voltage of VD1.

[0048] C1, R1, and VT1 together form an electronic filter circuit, which serves a filtering function.

[0049] In some cases, to further improve the filtering effect, a dual-tube electronic filter circuit can be used, where two electronic filter tubes form a composite tube circuit. The total current amplification factor is thus the product of the current amplification factors of each tube, which obviously improves the filtering effect.

[0050] Specifically, during use, when installing filter 1, first align the through slot 13 on the support frame 5 with the positioning post 14 and threaded post 8 on the top of the mounting plate 7, so that the positioning post 14 and threaded post 8 pass through the through slot 13. Then, rotate the positioning ring 15. Since the surface of the threaded post 8 is provided with an external thread 16, the internal thread of the rotating positioning ring 15 matches and engages with the external thread 16. As the rotating positioning ring 15 rotates, it will move downward along the threaded post 8. When the rotating positioning ring 15 is tightly attached to the bottom of the support frame 5, the support frame 5 and the mounting plate 7 are firmly fixed together, thereby completing the installation and positioning of filter 1. This threaded connection method makes it convenient to adjust the installation angle and position of filter 1. If it is necessary to fine-tune the position of filter 1 during the installation process, it can be achieved by rotating the rotating positioning ring 15 again.

[0051] During operation, filter 1 generates heat. Heat-conducting plate 2 is tightly attached to the side of filter 1. Utilizing its excellent thermal conductivity, it quickly conducts the heat generated by filter 1 to itself. The heat sink 3 on the side of heat-conducting plate 2 increases the heat dissipation area and accelerates the dissipation of heat to the surrounding environment. Heat dissipation positioning block 11 is inserted into the heat dissipation positioning groove 10 on the side of filter 1. It not only plays the role of assisting in positioning the heat dissipation device, but also enhances the heat conduction effect between heat-conducting plate 2 and filter 1, so that heat can be transferred more efficiently from filter 1 to heat sink 3 and then dissipated into the air, thereby effectively reducing the operating temperature of filter 1.

[0052] Conductor 6 is connected to the side of filter 1 to realize the electrical connection between filter 1 and external circuit, so that electrical signals can smoothly enter and exit filter 1. Bolt 4 passes through the through hole 12 on the surface of heat-conducting plate 2, with one end extending into the interior of filter 1 and screwed into screw hole 9. This connection method not only fixes heat-conducting plate 2 on filter 1, but may also serve as an electrical connection or grounding function, ensuring the stability and reliability of filter 1 in electrical performance, and ensuring that filter 1 can work normally to filter electrical signals.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A filter, characterized in that, include: A filter (1) is provided with a support frame (5) at its bottom, and a mounting plate (7) is provided on one side of the bottom of the support frame (5). Heat-conducting plate (2), the heat-conducting plate (2) is disposed on the side of filter (1), and heat sink (3) is disposed on the side of the heat-conducting plate (2); Heat dissipation positioning block (11) is provided on the other side of filter (1), and heat dissipation positioning groove (10) for inserting heat dissipation positioning block (11) is provided on the side of filter (1). A positioning mechanism is provided between the mounting plate (7) and the support frame (5). The rotating positioning ring (15) of the positioning mechanism rotates on the surface of the threaded column (8) so that the rotating positioning ring (15) fixes the support frame (5) and the mounting plate (7).

2. A filter according to claim 1, characterized in that, The positioning mechanism includes a positioning post (14) connected to the top of the mounting plate (7), a threaded post (8) connected to the top of the positioning post (14), and a rotating positioning ring (15) screwed onto the surface of the threaded post (8).

3. A filter according to claim 2, characterized in that, The surface of the threaded post (8) is connected at equal intervals with external thread portions (16) for screwing in a rotating positioning ring (15).

4. A filter according to claim 1, characterized in that, The surface of the support frame (5) is provided with a through groove (13) for passing through the positioning post (14) and the threaded post (8).

5. A filter according to claim 1, characterized in that, The surface of the heat-conducting plate (2) is connected to a bolt (4), one end of which passes through the heat-conducting plate (2) and extends into the interior of the filter (1).

6. A filter according to claim 5, characterized in that, The surface of the heat-conducting plate (2) is provided with through holes (12) for passing through bolts (4).

7. A filter according to claim 1, characterized in that, The filter (1) has a conductor (6) connected to its side.

8. A filter according to claim 5, characterized in that, The filter (1) has a screw hole (9) inside for screwing in the bolt (4).

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