CN107040233B - Electronic equipment and power divider thereof - Google Patents
Electronic equipment and power divider thereof Download PDFInfo
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- CN107040233B CN107040233B CN201710335960.7A CN201710335960A CN107040233B CN 107040233 B CN107040233 B CN 107040233B CN 201710335960 A CN201710335960 A CN 201710335960A CN 107040233 B CN107040233 B CN 107040233B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to an electronic device and a power divider thereof. A power divider includes a housing, pins, a capacitor, a resistor, and an inductor; the shell is provided with a closed inner cavity; the capacitor, the inductor and the resistor are arranged in the inner cavity; the pins include three pins. Three pins are used as input and two outputs, respectively. The inductor comprises a magnetic core, a first inductor and a second inductor; the first inductor and the second inductor are wound on the magnetic core; the first inductor is respectively connected with an input end pin and an output end pin; the second inductor is connected with the other output terminal pin and the input terminal pin respectively. The capacitor is respectively connected with the input end pin and the reference ground end pin; the resistor is respectively connected with the two output end pins; the pins are welded on the shell by spot welding. Above-mentioned merit divides ware, and the pin welds on the casing through spot welding mode to realize reducing merit divides ware's insertion loss.
Description
Technical Field
The invention relates to the technical field of electronic information, in particular to electronic equipment and a power divider thereof.
Background
The power divider is a device for dividing one input signal energy into two or more paths to output equal or unequal energy. Or the multiple signal energies are combined into one path for output, which can be also called a combiner. The traditional power divider adopts a winding type power divider. Therefore, the conventional power divider has high insertion loss, which is disadvantageous for signal transmission.
Disclosure of Invention
Based on this, it is necessary to provide a power divider that reduces insertion loss, and also to provide an electronic device.
A power divider comprising a housing, pins, a capacitor, a resistor, and an inductor; the shell is provided with a closed inner cavity; the capacitor, the inductor and the resistor are arranged in the inner cavity; the pins comprise a first pin, a second pin and a third pin; the first pin is used as an input end of the power divider; the second pin and the third pin are respectively used as two output ends of the power divider; the inductor comprises a magnetic core, a first inductor and a second inductor; the first inductor and the second inductor are wound on the magnetic core; one end of the first inductor is electrically connected with the first pin, and the other end of the first inductor is electrically connected with the second pin; one end of the second inductor is electrically connected with the first pin, and the other end of the second inductor is electrically connected with the third pin; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is connected with a reference ground; one end of the resistor is electrically connected with the second pin, and the other end of the resistor is electrically connected with the third pin; the pins are welded on the shell in a spot welding mode; one end of the pin extends out of the shell and is used for being connected with external equipment.
In one embodiment, the device further comprises a fixed pin; the fixed pins are welded on the shell in a spot welding mode; one end of the fixed pin extends out of the shell so as to be used for fixing the power divider.
In one embodiment, the start end of the first inductor is electrically connected with the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the third pin; the end of the second inductor is electrically connected with the first pin.
In one embodiment, the start end of the first inductor is electrically connected with the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the first pin; and the end of the second inductor is electrically connected with the third pin.
In one embodiment, an epoxy resin is also included; the epoxy resin is filled in the inner cavity of the shell to fix the capacitor, the inductor and the resistor.
In one embodiment, the magnetic core is a ferrite core.
In one embodiment, the capacitor is a capacitor made of COG material.
In one embodiment, the housing is a bakelite housing.
In one embodiment, the pins further comprise a fourth pin; the fourth pin is used for being connected with an external reference ground terminal; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is electrically connected with the fourth pin.
An electronic device includes a first circuit module and a second circuit module; the power divider of any of the embodiments above is also included; the input end of the power divider is used for receiving signal input; the two output ends of the power divider are respectively connected with the first circuit module and the second circuit module so as to distribute the input signal power to the first circuit module and the second circuit module.
The power divider is characterized in that a capacitor, an inductor and a resistor are arranged in the inner cavity of the shell. The power divider achieves power division through a capacitor and a resistor and an inductor. And the power divider realizes the input and output of signals through pins. The pins are welded on the shell in a spot welding mode, so that the insertion loss of the power divider is reduced.
Drawings
FIG. 1 is a schematic diagram showing an internal structure of a power divider according to an embodiment;
fig. 2 is a schematic diagram of an external structure of a power divider in an embodiment.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1, a power divider 10 includes a housing 100, pins, a capacitor 300, a resistor 500, and an inductor 400. The housing 100 has a closed interior 101. The capacitor 300, the inductor 400 and the resistor 500 are disposed within the cavity 101.
The pins include a first pin 201, a second pin 203, and a third pin 205. The first pin 201 is used as an input terminal of the power divider 10 for receiving input signals. The second pin 203 and the third pin 205 serve as two output terminals of the power divider 10 for outputting signals. When an input signal is input from the first pin 201, power is distributed through the power divider 10, and then output from the second pin 203 and the third pin 205, respectively. In this embodiment, the pins further include a fourth pin 207. The fourth pin 207 is for connection to an external reference ground.
Inductor 400 includes a magnetic core, a first inductance, and a second inductance (not shown). The first inductor and the second inductor are wound on the magnetic core. One end of the first inductor is electrically connected with the first pin 201, and the other end of the first inductor is electrically connected with the second pin 203. One end of the second inductor is electrically connected to the first pin 201, and the other end is electrically connected to the third pin 205.
One end of the capacitor 300 is electrically connected to the first pin 201, and the other end is electrically connected to the fourth pin 207. One end of the capacitor 300 connected to the first pin 201 is further connected to the first inductance and the second inductance in the inductor 400. One end of the resistor 500 is electrically connected to the second pin 203, and the other end is electrically connected to the third pin 205. Wherein the first, second, third and fourth pins 201, 203, 205 and 207 are welded to the case 200 by spot welding. The first pin 201, the second pin 203, the third pin 205, and the fourth pin 207 have one end protruding outside the housing 100, respectively, for connection with external devices for signal input and output.
The inductor 400, the capacitor 300 and the resistor 500 in the cavity 101 of the housing 100 of the power divider 10 form the structural circuit of the power divider 10, so as to realize the power distribution of the power divider 10. The first pin 201, the second pin 203, the third pin 205, and the fourth pin 207 of the power divider 10 are assembled to the housing 100 by spot welding. The insertion loss of the power divider 10 is reduced compared to the conventional wire-wound type.
In this embodiment, the core of the inductor 400 is made of ferrite. The ferrite core allows for low loss of the inductor 400, thereby further reducing the insertion loss of the power divider 10. Meanwhile, the line-to-line capacitance of the inductor 400 may be determined by the twisted wire, and the insertion loss of the power divider 10 may be further reduced by controlling the line-to-line capacitance of the inductor 400. The inductance in inductor 400 is an enameled copper wire inductance. The enamelled copper wire inductor adopts wires which are high-temperature resistant and reach 180 ℃ in material, thereby meeting the requirement of the power divider 10 on high temperature resistance. The core is made of a material having a good temperature coefficient while ensuring low loss, so that the power divider 10 can operate at a high and low operating temperature.
In the present embodiment, a start end of a first inductor in the inductor 400 is electrically connected to the first pin 201, and an end of the first inductor is electrically connected to the second pin 203. The start end of the second inductor in the inductor 400 is electrically connected to the third pin 205, and the end of the second inductor is electrically connected to the first pin 201. Therefore, the inductance in the inductor 400 is a differential mode inductance. The signals output in the second pin 203 and the third pin 205 are in opposite phases.
In other embodiments, the start end of the first inductor of the inductor 400 is electrically connected to the first pin 201, and the end of the first inductor is electrically connected to the second pin 203. The start end of the second inductor in the inductor 400 is electrically connected to the first pin 201, and the end of the second inductor is electrically connected to the third pin 205. Thus, the inductance in inductor 400 is a common mode inductance. The signals output in the second pin 203 and the third pin 205 have the same phase.
The connection manner of the first inductor and the second inductor in the inductor 400 is not limited to the connection manner described in the above embodiment. In other embodiments, the connection between the first inductor and the second inductor in the inductor 400 further includes other connection modes that make the inductor in the inductor 400 be a common-mode inductor or a differential-mode inductor, so that the output signals of the second pin 203 and the third pin 205 have the same phase or opposite phases.
The power divider 10 further comprises fixing pins to achieve positioning and fixing effects of the power divider 10. In this embodiment, the fixed pins include pin 601 and pin 603. Pins 601 and 603 are respectively disposed at two symmetrical ends of the housing 100 to realize balanced fixation of the power divider 10. Pins 601 and 603 are welded to the housing 100 by spot welding, and one ends of the two pins protrude outside the housing 100 for fixing the power divider 10. Therefore, the insertion loss of the power divider 10 can be further reduced. In other embodiments, the number and location of the fixing pins for fixing the power divider 10 may be set according to the actual situation.
The power divider 10 further includes an epoxy 700 and a plurality of bond wires connected between the devices in the power divider 10 and between the devices and the pins. The plurality of connecting wires in the power divider 10 are made of wires with high temperature resistance reaching 180 ℃, so that the high temperature resistance requirement of the power divider 10 is met. An epoxy 700 is filled in the inner cavity 101 of the housing 100 to fix the devices and the plurality of connection lines in the inner cavity 101. In this embodiment, the epoxy 700 is a two-component epoxy. The two-component epoxy resin has good fluidity and small stress, so that the inductor 400, the capacitor 300, the resistor 500 and the plurality of connecting wires inside the power divider 10 are integrated with the housing 100, thereby improving the vibration resistance and the shock resistance of the power divider 10.
The capacitor 300 employs a capacitor having a low loss property, so that the insertion loss of the power divider 10 can be further reduced. In this embodiment, the capacitor 300 is a COG (chip on glass) capacitor. Resistor 500 employs a precision resistor with good temperature performance. The housing 100 is made of high temperature resistant bakelite. Therefore, the whole power divider 10 has better high-temperature resistance.
The invention further provides electronic equipment. An electronic device comprises a first circuit module and a second circuit module, and further comprises the power divider 10 according to any of the embodiments described above. As shown in fig. 2, the input 2011 of the power divider 10 is configured to receive a signal input. The two outputs of the power divider 10, namely, the output 2033 and the output 2055, are connected to the first circuit module and the second circuit module, respectively. The power divider 10 distributes the input signal power to the first circuit module and the second circuit module.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. A power divider comprising a housing, pins, a capacitor, a resistor, and an inductor; it is characterized in that the method comprises the steps of,
The shell is provided with a closed inner cavity; the capacitor, the inductor and the resistor are arranged in the inner cavity;
The pins comprise a first pin, a second pin and a third pin; the first pin is used as an input end of the power divider; the second pin and the third pin are respectively used as two output ends of the power divider;
The inductor comprises a magnetic core, a first inductor and a second inductor; the first inductor and the second inductor are wound on the magnetic core; one end of the first inductor is electrically connected with the first pin, and the other end of the first inductor is electrically connected with the second pin; one end of the second inductor is electrically connected with the first pin, and the other end of the second inductor is electrically connected with the third pin;
One end of the capacitor is respectively and electrically connected with the first pin, one end of the first inductor and one end of the second inductor, and the other end of the capacitor is connected with a reference ground terminal;
one end of the resistor is electrically connected with the second pin, and the other end of the resistor is electrically connected with the third pin;
The fixed pin is welded on the shell in a spot welding mode; one end of the fixed pin extends out of the shell to be used for fixing the power divider;
The starting end of the first inductor is electrically connected with the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the third pin; the end of the second inductor is electrically connected with the first pin;
the pins are welded on the shell in a spot welding mode; one end of the pin extends out of the shell and is used for being connected with external equipment.
2. The power divider of claim 1, wherein a start end of the first inductor is electrically connected to the first pin; the end of the first inductor is electrically connected with the second pin; the starting end of the second inductor is electrically connected with the first pin; and the end of the second inductor is electrically connected with the third pin.
3. The power divider of claim 1, further comprising an epoxy; the epoxy resin is filled in the inner cavity of the shell to fix the capacitor, the inductor and the resistor.
4. The power divider of claim 1, wherein the magnetic core is a ferrite core.
5. The power divider of claim 1, wherein the capacitor is a COG capacitor.
6. The power divider of claim 1, wherein the housing is an bakelite housing.
7. The power divider of claim 1, wherein the pins further comprise a fourth pin; the fourth pin is used for being connected with an external reference ground terminal; one end of the capacitor is electrically connected with the first pin, and the other end of the capacitor is electrically connected with the fourth pin.
8. An electronic device includes a first circuit module and a second circuit module; characterized by further comprising a power divider according to any one of claims 1-7; the input end of the power divider is used for receiving signal input; the two output ends of the power divider are respectively connected with the first circuit module and the second circuit module so as to distribute the input signal power to the first circuit module and the second circuit module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335960.7A CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710335960.7A CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107040233A CN107040233A (en) | 2017-08-11 |
| CN107040233B true CN107040233B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710335960.7A Active CN107040233B (en) | 2017-05-12 | 2017-05-12 | Electronic equipment and power divider thereof |
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| CN (1) | CN107040233B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067380B (en) * | 2018-07-11 | 2024-06-21 | 深圳振华富电子有限公司 | Vibration-resistant power divider |
| CN109066040B (en) * | 2018-07-11 | 2024-06-14 | 深圳振华富电子有限公司 | Low insertion loss type power divider |
| CN109037869A (en) * | 2018-07-11 | 2018-12-18 | 深圳振华富电子有限公司 | High-temperature adaptability power splitter |
| CN109103557A (en) * | 2018-07-11 | 2018-12-28 | 深圳振华富电子有限公司 | Three road power splitters |
| CN113224492B (en) * | 2021-04-19 | 2021-12-28 | 中国电子科技集团公司第二十九研究所 | Ultra-wideband power divider chip based on mutual inductance coupling |
| CN113257547A (en) * | 2021-05-31 | 2021-08-13 | 深圳振华富电子有限公司 | Radio frequency pulse transformer |
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| CN106206546A (en) * | 2016-07-14 | 2016-12-07 | 中国电子科技集团公司第五十五研究所 | A kind of ceramic wall type shell being applied to 18GHz |
| CN206865423U (en) * | 2017-05-12 | 2018-01-09 | 深圳振华富电子有限公司 | Electronic equipment and its power splitter |
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| JPS62180882U (en) * | 1986-05-08 | 1987-11-17 | ||
| US6963256B2 (en) * | 2004-03-29 | 2005-11-08 | Radhakrishnaiah Setty | Low cost splitter |
| KR20100004440A (en) * | 2008-07-03 | 2010-01-13 | 광운대학교 산학협력단 | Power divider and combiner using lumped elements |
| GB201015295D0 (en) * | 2010-09-14 | 2010-10-27 | Technetix Group Ltd | Signal splitter for use in MoCA/CATV networks |
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Patent Citations (2)
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| CN106206546A (en) * | 2016-07-14 | 2016-12-07 | 中国电子科技集团公司第五十五研究所 | A kind of ceramic wall type shell being applied to 18GHz |
| CN206865423U (en) * | 2017-05-12 | 2018-01-09 | 深圳振华富电子有限公司 | Electronic equipment and its power splitter |
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| CN107040233A (en) | 2017-08-11 |
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