CN215733490U - Waterproof and high-current three-phase power supply filter capable of being conveniently installed - Google Patents
Waterproof and high-current three-phase power supply filter capable of being conveniently installed Download PDFInfo
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- CN215733490U CN215733490U CN202121657195.9U CN202121657195U CN215733490U CN 215733490 U CN215733490 U CN 215733490U CN 202121657195 U CN202121657195 U CN 202121657195U CN 215733490 U CN215733490 U CN 215733490U
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Abstract
The utility model discloses a waterproof and heavy-current three-phase power filter capable of being conveniently installed, which comprises a shell, a three-phase power filter body and a shell, wherein the three-phase power filter body and the shell are packaged in the shell, the top of the shell is respectively and fixedly connected with a plurality of first and second flat wiring terminals and a flat grounding terminal, the first and second flat wiring terminals are respectively and correspondingly connected with the input end and the output end of the three-phase power filter body, every two first and second flat wiring terminals are respectively in a group and are commonly connected with the input end and the output end of the corresponding three-phase power filter body, and the flat grounding terminal is connected with the grounding end of the three-phase power filter body. The utility model can effectively prevent water and dust, and prolong the service life; and, it is very convenient to connect, can increase input current and output current to increase input and output power, be favorable to realizing the miniaturization.
Description
Technical Field
The utility model relates to the technical field of three-phase power filters, in particular to a waterproof and high-current three-phase power filter which can be conveniently installed.
Background
The power filter is a filter circuit consisting of a capacitor, an inductor and a resistor, is also called as a power EMI filter, or is an EMI power filter, and is a passive bidirectional network, wherein one end of the passive bidirectional network is a power supply, and the other end of the passive bidirectional network is a load. The principle of the power filter is an impedance adaptation network: the greater the impedance adaptation of the input and output sides of the power filter to the power and load sides, the more effective the attenuation of electromagnetic interference. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.
By using the characteristic of the power supply filter, a square wave group or composite noise wave passing through the power supply filter can be changed into a sine wave with a specific frequency.
At present, a three-phase power filter mainly comprises electronic components such as a common-mode inductor, a safety capacitor, a piezoresistor and the like, wherein the electronic components are usually welded on a circuit board integrated with a corresponding circuit. When the circuit board is installed, corresponding assembling holes need to be arranged on the circuit board or assembling bolts, nuts and the like need to be welded, which is very troublesome. In addition, common mode inductance generally adopts annular magnetic core, need rely on the manual work to form the winding with the copper line coiling on annular magnetic core, and not only work efficiency is low, moreover because the space is limited, can only adopt 0.4~0.5 mm's copper line usually, consequently restricted three-phase power supply filter's input and output current, restricted three-phase power supply filter's input and output power promptly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and shortcomings in the prior art, and provides a waterproof and heavy-current three-phase power supply filter which can be conveniently installed, can prevent water and dust and prolong the service life; in addition, the installation is convenient, the input current and the output current can be increased so as to increase the input power and the output power, and the miniaturization is favorably realized; in addition, machine winding can be adopted to improve the working efficiency.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a waterproof, heavy current three phase current filter that can convenient installation, including three phase current filter body and casing, its characterized in that: the three-phase power supply filter body is packaged in the shell, a plurality of first flat wiring terminals and a plurality of second flat wiring terminals are fixedly connected to two sides of the top of the shell correspondingly and respectively, a flat grounding terminal is also fixedly connected to the top of the shell, the first flat wiring terminals are input terminals and are correspondingly connected with the input end of the three-phase power supply filter body respectively, and every two first flat wiring terminals are in a group and are connected with the input end of the corresponding three-phase power supply filter body together; the second flat wiring terminals are output terminals and are respectively correspondingly connected with the output end of the three-phase power supply filter body, every two second flat wiring terminals form a group and are connected with the output end of the corresponding three-phase power supply filter body, and the flat grounding terminal is connected with the grounding end of the three-phase power supply filter body.
Furthermore, the three-phase power supply filter body comprises a common-mode inductor, a safety capacitor, a piezoresistor and a circuit board, wherein the common-mode inductor, the safety capacitor and the piezoresistor are fixedly welded on the circuit board.
Furthermore, the plurality of first flat connecting terminals are respectively and correspondingly welded with the input end of the circuit board, the plurality of second flat connecting terminals are respectively and correspondingly welded with the output end of the circuit board, and the flat grounding terminal is welded with the grounding end of the circuit board.
Furthermore, the common mode inductor comprises two E-shaped magnetic cores, an I-shaped framework and a thick copper wire, wherein the two E-shaped magnetic cores are correspondingly inserted at two ends of the I-shaped framework respectively, side columns at two sides of the two E-shaped magnetic cores are correspondingly abutted, center columns of the two E-shaped magnetic cores are respectively inserted into a middle cylinder of the I-shaped framework, the thick copper wire is wound on the middle cylinder of the I-shaped framework to form a three-phase winding, two ends of the I-shaped framework are respectively and correspondingly and fixedly connected with a plurality of PIN needles, and the PIN needles are respectively and correspondingly connected with an input end and an output end of the three-phase winding on one hand and are fixedly welded on the other hand on the circuit board.
Further, the diameter of the thick copper wire is 0.8 mm.
Furthermore, two clamping pieces are correspondingly clamped at the outer sides of the two E-shaped magnetic cores at the two ends of the I-shaped framework respectively, the two clamping pieces are in a shape of a letter 21274, and the two E-shaped magnetic cores are correspondingly fixed on the I-shaped framework respectively.
Furthermore, the shell is made of PET plastic.
Furthermore, both sides of the bottom of the shell are provided with mounting seats which are integrally connected.
Furthermore, the wide surfaces of the first flat wiring terminals are all parallel to the long edge of the top of the shell, the wide surfaces of the second flat wiring terminals are all parallel to the short edge of the top of the shell, and the flat grounding terminal is independently positioned on one side of the top of the shell.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the three-phase power supply filter body is packaged in the shell, so that the water and dust can be effectively prevented, and the service life is prolonged.
2. According to the utility model, the first flat wiring terminals and the second flat wiring terminals are respectively and fixedly connected to two sides of the top of the shell, and the flat grounding terminal is fixedly connected to the top of the shell, wherein the flat terminal (male terminal) is convenient to be inserted into a connector (female terminal), so that the connection is very convenient, and the installation-free is realized; meanwhile, the surface area of the flat terminal is large, and the heat dissipation is fast; in addition, two pairs of first flat binding post are a set of, connect corresponding three-phase power supply filter body's input altogether, and two pairs of second flat binding post are a set of, connect corresponding three-phase power supply filter body's output altogether, and two terminals connect corresponding three-phase power supply filter body's an input or output altogether promptly, can increase input current and output current to input and output power has been increased, need not to adopt jumbo size or bulky electronic components, be favorable to realizing the miniaturization.
3. The I-shaped framework and the E-shaped magnetic core are adopted, the traditional annular magnetic core is abandoned, the copper wire can be directly wound on the I-shaped framework to form a winding, a machine can be used for winding, the winding speed is high, and the working efficiency is effectively improved; furthermore, using a thick copper wire with a diameter of 0.8mm enables a further increase in input and output current, and thus a further increase in input and output power.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of the common mode inductor according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, a waterproof and heavy-current three-phase power filter capable of being conveniently installed comprises a three-phase power filter body and a shell 1, wherein the three-phase power filter body is packaged inside the shell 1, two sides of the top of the shell 1 are respectively and correspondingly and fixedly connected with six first flat wiring terminals 2 and six second flat wiring terminals 3, the top of the shell 1 is also fixedly connected with a flat grounding terminal 4, the six first flat wiring terminals 2 are input terminals and are respectively and correspondingly connected with the input end of the three-phase power filter body, and every two first flat wiring terminals are in a group and are commonly connected with the input end of the corresponding three-phase power filter body; the six second flat wiring terminals 3 are output terminals and are respectively correspondingly connected with the output end of the three-phase power supply filter body, wherein every two second flat wiring terminals form a group and are commonly connected with the output end of the corresponding three-phase power supply filter body, and the flat grounding terminal 4 is connected with the grounding end of the three-phase power supply filter body.
In the utility model, the three-phase power filter body comprises a common-mode inductor 5, a safety capacitor, a piezoresistor and a circuit board (the safety capacitor, the piezoresistor and the circuit board are not shown in the figure), and the common-mode inductor 5, the safety capacitor and the piezoresistor are fixedly welded on the circuit board.
In the utility model, six first flat connecting terminals 2 are respectively welded with the input end of the circuit board correspondingly, six second flat connecting terminals 3 are respectively welded with the output end of the circuit board correspondingly, and a flat grounding terminal 4 is welded with the grounding end of the circuit board.
In the utility model, the common mode inductor 5 comprises two E-shaped magnetic cores 51, an I-shaped framework 52 and a thick copper wire 53, wherein the two E-shaped magnetic cores 51 are respectively and correspondingly inserted at two ends of the I-shaped framework 52, side columns at two sides of the two E-shaped magnetic cores 51 are correspondingly abutted, center columns of the two E-shaped magnetic cores 51 are respectively inserted into a middle cylinder of the I-shaped framework 52, the thick copper wire 53 is wound on the middle cylinder of the I-shaped framework 52 to form a three-phase winding, two ends of the I-shaped framework 52 are respectively and correspondingly and fixedly connected with six PIN PINs 54, and the six PIN PINs 54 are respectively and correspondingly connected with an input end and an output end of the three-phase winding on one hand and are fixedly welded on a circuit board on the other hand, so that the common mode inductor 5 is fixedly welded on the circuit board.
In the present invention, the diameter of the thick copper wire 53 is 0.8 mm. Thereby, the input current and the output current can be increased, thereby increasing the input and output power.
In the utility model, two clamping pieces 55 are correspondingly clamped at the outer sides of the two E-shaped magnetic cores 51 at the two ends of the I-shaped framework 52 respectively, the two clamping pieces 55 are in a shape of a letter 21274, and the two E-shaped magnetic cores 51 are correspondingly fixed on the I-shaped framework 52 respectively, so that the method is very convenient.
In the utility model, the shell 1 is made of PET plastic, has excellent physical and mechanical properties in a wide temperature range, and has excellent electrical insulation and aging resistance.
In the utility model, the two sides of the bottom of the shell 1 are respectively provided with the mounting seats 6 which are integrally connected, so that the whole three-phase power filter can be conveniently assembled.
In the utility model, the wide surfaces of the six first flat wiring terminals 2 are all parallel to the long side of the top of the shell 1, the wide surfaces of the six second flat wiring terminals 3 are all parallel to the short side of the top of the shell 1, and the flat grounding terminal 4 is independently positioned on one side of the top of the shell 1. Therefore, the connector can be conveniently connected with the connector (female connector), and the input end and the output end can be prevented from being connected in a wrong way.
The utility model is further described below with reference to the accompanying drawings:
the three-phase power supply filter body is packaged in the shell 1, so that the three-phase power supply filter body can effectively prevent water and dust, and the service life is prolonged.
According to the utility model, six first flat wiring terminals 2 and six second flat wiring terminals 3 are respectively and fixedly connected to two sides of the top of the shell 1, and the top of the shell 1 is fixedly connected with one flat grounding terminal 4; meanwhile, the surface area of the flat terminal is large, and the heat dissipation is fast; in addition, two pairs of first flat binding post are a set of, connect corresponding three-phase power supply filter body's input altogether, and two pairs of second flat binding post are a set of, connect corresponding three-phase power supply filter body's output altogether, and two terminals connect corresponding three-phase power supply filter body's an input or output altogether promptly, can increase input current and output current to input and output power has been increased, need not to adopt jumbo size or bulky electronic components, be favorable to realizing the miniaturization.
The common mode inductor 5 comprises two E-shaped magnetic cores 51 and an I-shaped framework 52, a traditional annular magnetic core is not adopted, copper wires can be directly wound on the I-shaped framework 52 to form a winding, a machine can be adopted for winding, the winding speed is high, and the working efficiency can be effectively improved; in addition, with the use of the thick copper wire 53 having a diameter of 0.8mm, the input current and the output current can be further increased, thereby further increasing the input and output power.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (9)
1. The utility model provides a waterproof, heavy current three phase current filter that can convenient installation, including three phase current filter body and casing, its characterized in that: the three-phase power supply filter body is packaged in the shell, a plurality of first flat wiring terminals and a plurality of second flat wiring terminals are fixedly connected to two sides of the top of the shell correspondingly and respectively, a flat grounding terminal is also fixedly connected to the top of the shell, the first flat wiring terminals are input terminals and are correspondingly connected with the input end of the three-phase power supply filter body respectively, and every two first flat wiring terminals are in a group and are connected with the input end of the corresponding three-phase power supply filter body together; the second flat wiring terminals are output terminals and are respectively correspondingly connected with the output end of the three-phase power supply filter body, every two second flat wiring terminals form a group and are connected with the output end of the corresponding three-phase power supply filter body, and the flat grounding terminal is connected with the grounding end of the three-phase power supply filter body.
2. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 1, wherein: the three-phase power supply filter body comprises a common-mode inductor, a safety capacitor, a piezoresistor and a circuit board, wherein the common-mode inductor, the safety capacitor and the piezoresistor are fixedly welded on the circuit board.
3. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 2, wherein: the first flat connecting terminals are respectively welded with the input end of the circuit board, the second flat connecting terminals are respectively welded with the output end of the circuit board, and the flat grounding terminals are welded with the grounding end of the circuit board.
4. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 2, wherein: the common mode inductor comprises two E-shaped magnetic cores, an I-shaped framework and a thick copper wire, wherein the two E-shaped magnetic cores are correspondingly inserted at two ends of the I-shaped framework respectively, side posts at two sides of the two E-shaped magnetic cores are correspondingly abutted, center posts of the two E-shaped magnetic cores are respectively inserted into a middle cylinder of the I-shaped framework, the thick copper wire is wound on the middle cylinder of the I-shaped framework to form a three-phase winding, two ends of the I-shaped framework are respectively and correspondingly and fixedly connected with a plurality of PIN needles, the PIN needles are respectively and correspondingly connected with an input end and an output end of the three-phase winding on one hand, and are fixedly welded on the circuit board on the other hand.
5. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 4, wherein: the diameter of the thick copper wire is 0.8 mm.
6. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 4, wherein: two clamping pieces are correspondingly clamped at the outer sides of the two E-shaped magnetic cores at the two ends of the I-shaped framework respectively, the two clamping pieces are in a shape of \ 21274, and the two E-shaped magnetic cores are correspondingly fixed on the I-shaped framework respectively.
7. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 1, wherein: the shell is made of PET plastic.
8. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 7, wherein: and the two sides of the bottom of the shell are provided with mounting seats which are integrally connected.
9. The waterproof, high-current three-phase power filter capable of being conveniently installed according to claim 1, wherein: the wide surfaces of the first flat wiring terminals are all parallel to the long edge of the top of the shell, the wide surfaces of the second flat wiring terminals are all parallel to the short edge of the top of the shell, and the flat grounding terminals are independently located on one side of the top of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121657195.9U CN215733490U (en) | 2021-07-21 | 2021-07-21 | Waterproof and high-current three-phase power supply filter capable of being conveniently installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121657195.9U CN215733490U (en) | 2021-07-21 | 2021-07-21 | Waterproof and high-current three-phase power supply filter capable of being conveniently installed |
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| Publication Number | Publication Date |
|---|---|
| CN215733490U true CN215733490U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121657195.9U Active CN215733490U (en) | 2021-07-21 | 2021-07-21 | Waterproof and high-current three-phase power supply filter capable of being conveniently installed |
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| CN (1) | CN215733490U (en) |
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2021
- 2021-07-21 CN CN202121657195.9U patent/CN215733490U/en active Active
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