Mini can package infrared receiving head

Abstract

This utility model discloses a MINI infrared receiver head with a metal shell and through-hole, comprising a shielding shell, a receiver head body, and pins. The pins are connected to the receiver head body, and the shielding shell is fitted onto the receiver head body. The shielding shell includes an upper shielding part, a lower shielding part, a front shielding part, a left shielding part, and a right shielding part. The receiver head body is installed within a cavity formed by the upper shielding part, lower shielding part, front shielding part, left shielding part, and right shielding part. The shielding shell is a metal shielding shell. By adding a metal shielding shell around the receiver head body and installing the receiver head body within the cavity formed by the upper shielding part, lower shielding part, front shielding part, left shielding part, and right shielding part, interference from sunlight, tungsten lamp light, energy-saving lamps, and fluorescent lamps on the infrared receiving module system can be reduced, improving the product's receiving sensitivity and receiving distance. Simultaneously, it can effectively shield high-frequency electromagnetic interference, thereby improving the functionality of the infrared receiver head.

Description

Technical Field

[0001] This utility model relates to the field of infrared communication technology, and in particular to a MINI infrared receiver head with a through hole and an iron shell. Background Technology

[0002] Infrared communication technology is widely used in home appliance remote control, smart homes, and industrial control due to its low cost, low power consumption, and high reliability. Existing infrared receivers typically consist of a photodiode (PD), signal processing circuitry, and a package structure. They convert infrared light signals into electrical signals, amplify the signals, filter, and demodulate them before outputting the final signal. Because the infrared signal transmission path is open, interference light from ambient light sources such as sunlight and artificial light can be transmitted along with the infrared light signal, converted into current by the photodiode, and then enter subsequent circuits. This can cause a shift in the DC operating point or a change in the center frequency of the circuit. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, this utility model provides a MINI infrared receiver head with a metal shell and through holes, which aims to solve the problem of interference light generated by ambient background light sources such as sunlight and lamps on the infrared receiver system.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a MINI infrared receiver head with a metal shell and through holes, including a shielding shell, a receiver head body and pins, wherein the pins are connected to the receiver head body, and the shielding shell is fitted onto the receiver head body; the shielding shell includes an upper shielding part, a lower shielding part, a front shielding part, a left shielding part and a right shielding part, and the receiver head body is installed in the accommodating cavity formed by the upper shielding part, the lower shielding part, the front shielding part, the left shielding part and the right shielding part.

[0005] As a further improvement of this utility model: the shielding shell is a metal shielding shell. By using a metal material for the shielding shell, high-frequency electromagnetic interference can be effectively shielded.

[0006] As a further improvement of this invention, the pins are Z-shaped. The Z-shaped pin design, combined with a metal shielding shell, further reduces light source interference.

[0007] As a further improvement of this utility model: the receiver head body is provided with a receiving part, and the upper shielding part is provided with a receiving window adapted to the receiving part.

[0008] As a further improvement of this utility model: the receiving part is protruding, and the opening of the receiving window is provided with a left limiting part and a right limiting part. By providing a left limiting part and a right limiting part at the opening of the receiving window, the left limiting part and the right limiting part can limit the protruding receiving part, thereby fixing the receiving head body and improving the stability between the shielding shell and the receiving head body.

[0009] As a further improvement of this utility model: the receiver head body includes an epoxy resin body, a lead frame, a photodiode (PD), and an integrated IC chip. The epoxy resin body is connected to the lead frame, and the photodiode (PD) and the integrated IC chip are mounted on the lead frame.

[0010] As a further improvement of this utility model: the photodiode PD is connected to the integrated IC chip via gold wire.

[0011] As a further improvement of this utility model: the pins include an OUT pin, a GND pin, and a VCC pin, and the GND pin is connected to the lead frame.

[0012] As a further improvement of this utility model: the OUT pin and VCC pin are Z-shaped.

[0013] As a further improvement of this utility model: the integrated IC chip is connected to the OUT pin, GND pin and VCC pin respectively via gold wire.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model adds a shielding shell around the receiver head body and installs the receiver head body in the accommodating cavity formed by the upper shielding part, lower shielding part, front shielding part, left shielding part and right shielding part. This can reduce the interference of ambient light sources such as sunlight and lamps on the infrared receiving module system, thereby improving the function of the infrared receiver head.

[0016] 2. This utility model effectively shields high-frequency electromagnetic interference by using a metal shielding shell. By employing a metal shielding shell, the product is able to resist DC light interference (interference from external natural light, artificial light, etc.) and light interference with specific frequencies (emission interference from the fluorescence spectrum), thereby improving the product's resistance to light source interference and increasing its receiving sensitivity and receiving distance.

[0017] 3. This utility model uses a metal shielding shell to provide all-round shielding for the receiver head body except for the receiving part. Compared with the existing partial shielding, the shielding effect is better and can better reduce the interference of the light source to the infrared receiving module system, thereby further improving the function of the infrared receiver head. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is an exploded view of the present invention.

[0020] Reference numerals: 1. Shielding shell; 2. Receiver head body; 3. Pin; 4. Wire frame; 5. Photodiode (PD); 6. Integrated IC chip; 7. Gold wire; 8. Upper shield; 9. Lower shield; 10. Front shield; 11. Left shield; 12. Right shield; 13. OUT pin; 14. GND pin; 15. VCC pin; 16. Receiver; 17. Left limiting part; 18. Right limiting part; 19. Epoxy resin body. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. The present utility model will now be further described with reference to the accompanying drawings and embodiments:

[0022] Please see Figure 1-2 A MINI infrared receiver head with a metal shell and through holes includes a shielding shell 1, a receiver head body 2, and pins 3. The pins are connected to the receiver head body 2, and the shielding shell 1 is fitted onto the receiver head body 2. The shielding shell 1 includes an upper shielding part 8, a lower shielding part 9, a front shielding part 10, a left shielding part 11, and a right shielding part 12. The receiver head body 2 is installed in the accommodating cavity formed by the upper shielding part 8, the lower shielding part 9, the front shielding part 10, the left shielding part 11, and the right shielding part 12.

[0023] By adding a shielding shell 1 around the receiver head body 2 and installing the receiver head body 2 in the accommodating cavity formed by the upper shielding part 8, the lower shielding part 9, the front shielding part 10, the left shielding part 11 and the right shielding part 12, the interference of the light source on the infrared receiving module system can be reduced, thereby improving the function of the infrared receiver head.

[0024] Furthermore, the shielding shell 1 is a metal shielding shell 1.

[0025] By using a metal shielding shell 1, high-frequency electromagnetic interference can be effectively shielded. The use of a metal shielding shell 1 enables the product to resist DC light interference (interference from external natural light, artificial light, etc.) and light interference with specific frequencies (emission interference from fluorescence spectra), thereby improving the product's resistance to light source interference, and increasing its receiving sensitivity and receiving distance.

[0026] Furthermore, the pins are Z-shaped. The Z-shaped pin design, combined with the metal shielding housing 1, further reduces light source interference.

[0027] Furthermore, the receiver head body 2 is provided with a receiving part 16, and the upper shielding part 8 is provided with a receiving window adapted to the receiving part 16.

[0028] The upper shielding part 8 has a receiving window adapted to the receiving part 16. The receiver head body 2 is installed in the accommodating cavity formed by the upper shielding part 8, the lower shielding part 9, the front shielding part 10, the left shielding part 11 and the right shielding part 12. By using a metal shielding shell 1 to shield all parts of the receiver head body 2 except for the receiving part 16, the shielding effect is better than the existing partial shielding. It can better reduce the interference of the light source to the infrared receiving module system, thereby further improving the function of the infrared receiver head.

[0029] Furthermore, the receiving part 16 is protruding, and the opening of the receiving window is provided with a left limiting part 17 and a right limiting part 18.

[0030] By providing a left limiting part 17 and a right limiting part 18 at the opening of the receiving window, the left limiting part 17 and the right limiting part 18 can limit the protruding receiving part 16, thereby fixing the receiving head body 2 and improving the stability between the shielding shell 1 and the receiving head body 2.

[0031] Furthermore, the receiver head body 2 includes an epoxy resin body 19, a lead frame 4, a photodiode PD5, and an integrated IC chip 6. The epoxy resin body 19 is connected to the lead frame 4, and the photodiode PD5 and the integrated IC chip 6 are mounted on the lead frame 4.

[0032] Furthermore, the position of the receiving unit 16 corresponds to the position of the photodiode PD5.

[0033] Furthermore, the photodiode PD5 is connected to the integrated IC chip 6 via a gold wire 7.

[0034] Furthermore, the pins include an OUT pin 13, a GND pin 14, and a VCC pin 15, with the GND pin 14 connected to the lead frame 4.

[0035] Among them, the OUT pin 13 and VCC pin 15 are Z-shaped.

[0036] Furthermore, the integrated IC chip 6 is connected to the OUT pin 13, GND pin 14 and VCC pin 15 respectively via gold wire 7.

[0037] This invention has the advantages of simple structure, low power consumption and low cost. It can stably carry out high-speed data communication. Its size is about one-tenth that of Bluetooth. Its power consumption during operation is comparable to that of Bluetooth in standby mode.

[0038] This invention is applicable to various short-distance applications and is suitable for remote control of electrical appliances used indoors, preventing interference between control circuits in different rooms.

[0039] The product data transmission of this utility model is a wireless transmission method, which does not require additional equipment and cables for wired transmission. It is convenient and simple to use, and can effectively solve the influence of sunlight, tungsten lamp light, energy-saving lamp and fluorescent lamp on light signals, thus improving the product performance of infrared receiver head.

[0040] The working principle of this utility model:

[0041] Photodiodes (PDs) are used to convert infrared light signals into electrical signals.

[0042] An integrated IC chip is electrically connected to the photodiode PD for amplifying, filtering, and demodulating electrical signals.

[0043] A wire frame is used to fix the photodiode (PD) and integrated IC chip and to achieve circuit connection.

[0044] Gold wires connect the photodiode (PD) to the electrodes of the integrated circuit (IC) chip; and the gold wires connect the IC chip to the electrodes of the OUT pin, GND pin, and VCC pin, respectively.

[0045] The epoxy resin body encapsulates the photodiode (PD), integrated IC chip, and lead frame to provide mechanical protection;

[0046] A metal shielding shell encloses the epoxy resin body to suppress interference from external light sources.

[0047] The photodiode (PD) converts infrared light signals into electrical signals. The integrated IC chip amplifies, filters, and demodulates the electrical signals before outputting them. By adding a shielding shell around the receiver head body and installing the receiver head body in the cavity formed by the upper shielding part, lower shielding part, front shielding part, left shielding part, and right shielding part, the interference light generated by ambient background light sources such as sunlight and lamps can be reduced on the infrared receiver system, thereby improving the function of the infrared receiver head.

[0048] The main functions of this utility model are:

[0049] This invention reduces interference from ambient light sources such as sunlight and artificial light on the infrared receiving module system by adding a shielding shell around the receiver head body and installing the receiver head body within a cavity formed by the upper shielding part, lower shielding part, front shielding part, left shielding part, and right shielding part. This improves the functionality of the infrared receiver head. The use of a metal shielding shell effectively shields against high-frequency electromagnetic interference. Furthermore, the metal shielding shell enables the product to resist DC light interference (interference from natural light, artificial light, etc.) and light interference at specific frequencies (emission interference from the fluorescence spectrum), thereby improving the product's resistance to light source interference, receiving sensitivity, and receiving distance.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A MINI infrared receiver head with a through-hole and iron shell, characterized in that: The device includes a shielding shell, a receiver head body, and pins. The pins are connected to the receiver head body, and the shielding shell is fitted onto the receiver head body. The shielding shell includes an upper shielding part, a lower shielding part, a front shielding part, a left shielding part, and a right shielding part. The receiver head body is installed in the accommodating cavity formed by the upper shielding part, the lower shielding part, the front shielding part, the left shielding part, and the right shielding part.

2. A MINI canned via type infrared receiving head according to claim 1, characterized in that: The shielding shell is a metal shielding shell.

3. The MINI canned via infrared receiving head according to claim 1, characterized in that: The pins are Z-shaped.

4. The MINI canned via infrared receiving head according to claim 1, characterized in that: The receiver head body is provided with a receiving part, and the upper shielding part is provided with a receiving window adapted to the receiving part.

5. A MINI canned via hole type infrared receiving head according to claim 4, characterized in that: The receiving part is protruding, and the opening of the receiving window is provided with a left limiting part and a right limiting part.

6. The MINI canned via infrared receiving head according to claim 1, characterized in that: The receiver head body includes an epoxy resin body, a lead frame, a photodiode (PD), and an integrated IC chip. The epoxy resin body is connected to the lead frame, and the photodiode (PD) and the integrated IC chip are mounted on the lead frame.

7. A MINI canned via infrared receiving head according to claim 6, characterized in that: The photodiode (PD) is connected to the integrated IC chip via gold wire.

8. The MINI canned via infrared receiving head according to claim 6, characterized in that: The pins include an OUT pin, a GND pin, and a VCC pin, with the GND pin connected to the lead frame.

9. A MINI canned via hole type infrared receiving head according to claim 8, characterized in that: The OUT and VCC pins are Z-shaped.

10. The MINI canned via infrared receiving head according to claim 8, characterized in that: The integrated IC chip is connected to the OUT pin, GND pin, and VCC pin via gold wires.

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