CN217444402U

CN217444402U - Aspheric lens detector

Info

Publication number: CN217444402U
Application number: CN202221175576.8U
Authority: CN
Inventors: 温永阔; 胡靖�; 邓刚; 龚成文; 张雄辉
Original assignee: Wuhan East Feiling Technology Co ltd
Current assignee: Wuhan East Feiling Technology Co ltd
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-09-16
Anticipated expiration: 2032-05-09

Abstract

The utility model relates to an aspheric lens detector, which comprises a tube seat, a tube cap, pins, a detecting device and a protecting device; the tube cap and the pins are respectively fixedly arranged on two sides of the tube seat, which are deviated from each other, an accommodating space is formed in the tube cap, and the detection device is arranged in the accommodating space and is fixedly connected with the tube seat; the tube cap is provided with a lens; the protection device is sleeved outside the tube cap, the tube seat and the pins, the internal shape of the protection device is matched with the tube cap, the tube seat and the pins, and the protection device is in clearance fit with the lens. The utility model discloses can prevent that pipe cap and the lens of detector from receiving to cut to scrape and rub on the way in the transportation, still can prevent that the pin from taking place crooked, rupture on the way in the transportation, avoid the detector to damage on the way and cause economic loss.

Description

Aspheric lens detector

Technical Field

The utility model relates to a detector field especially relates to an aspheric surface lens detector.

Background

The TO-CAN detector applied TO optical fiber communication has the function of converting optical signals into electric signals and is realized by mainly using a photodiode arranged in the TO-CAN detector as a photoelectric conversion unit. The tube cap is provided with a glass aspheric lens, and the tube seat is provided with a pin for transmitting signals.

However, the conventional aspheric lens detector is not provided with a protection device, so that the lens on the tube cap is easily scratched in the transportation process, and the pins are bent and broken, thereby causing economic loss.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide an aspheric lens detector, the aspheric lens detector who aims at solving among the prior art does not set up protection device, leads to like this that the detector can receive the damage in the transportation, and then leads to causing economic loss's problem.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an aspheric lens detector comprises a tube seat, a tube cap, a pin, a detection device and a protection device;

the tube cap and the pins are respectively fixedly arranged on two sides of the tube seat, which are deviated from each other, an accommodating space is formed in the tube cap, and the detection device is arranged in the accommodating space and is fixedly connected with the tube seat; the tube cap is provided with a lens;

the protection device is sleeved outside the tube cap, the tube seat and the pins, the internal shape of the protection device is matched with the tube cap, the tube seat and the pins, and the protection device is in clearance fit with the lens.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Preferably, the protection device comprises a protection sleeve and a protection seat which are coaxially arranged, and the adjacent edges of the protection sleeve and the protection seat are detachably connected; the protective sleeve is sleeved on the outer side of the pipe cap and is in clearance fit with the pipe cap; a settling tank is arranged in the protective seat and is matched with the periphery of the tube seat; a plurality of pin placing grooves are formed in the settling tank, and the pin placing grooves are sleeved on the plurality of pins in a one-to-one correspondence mode.

Preferably, the protection seat includes shell and fixing base, the shell housing is established in the periphery of fixing base, and the fixing base sinks along the open end of shell and forms the subsider, the pin standing groove sets up the tank bottom at the subsider.

Preferably, the periphery of protection seat is equipped with the recess, the inner wall of protective sheath is equipped with the clutch blocks, works as when protection seat is connected with the protective sheath, the cooperation of pegging graft of clutch blocks and recess.

Preferably, the periphery of protection seat is equipped with the recess, the fixed cover that is equipped with of one end towards the protection seat on the protection cover, the inner wall of fixed cover is equipped with the clutch blocks, works as when the protection seat is connected with the protection cover, the cooperation of pegging graft of clutch blocks and recess.

Preferably, the friction block has elasticity.

Preferably, the groove is an annular groove, the friction block is matched with the annular groove in shape, and when the protection seat is connected with the protection sleeve, the friction block is embedded into the annular groove.

Preferably, a plurality of grooves and a plurality of friction blocks are arranged, and the grooves are matched with the friction blocks in a one-to-one correspondence manner.

Preferably, the detection device comprises a photodiode, a transimpedance amplifier and a capacitor, wherein the photodiode, the transimpedance amplifier and the capacitor are fixedly arranged on the tube seat, a photosensitive surface of the photodiode is arranged over against the lens, an output end of the photodiode is electrically connected with an input end of the transimpedance amplifier, one end of the capacitor is connected with an output end of the photodiode, the other end of the capacitor is grounded, and an output end of the transimpedance amplifier is electrically connected with the pin.

The utility model has the advantages that: in the aspheric lens detector of the utility model, the tube seat is used as a structural support part of the detector, the tube cap protects the internal electrical elements, light is introduced through the lens on the tube cap, the detection device detects the light and converts the light signal into an electrical signal to be transmitted to the pin for output; the protective device is detachable and protects the pipe cap, the lens, the pipe seat and the pins, and the pipe cap and the lens can be prevented from being scratched in the transportation process due to clearance fit between the protective device and the lens; because the protection device is sleeved outside the tube seat and the pins, the pins can be prevented from being bent and broken in the transportation process, and the economic loss caused by damage of the detector in the transportation process is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an aspheric lens detector provided by the present invention;

fig. 2 is a schematic view of a fixing base structure provided by the present invention;

fig. 3 is a schematic structural diagram of the detecting device provided by the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a tube seat, 2, a tube cap, 3, a pin, 4, a detection device, 41, a transimpedance amplifier, 42, a photodiode, 43, a capacitor, 5, a protection device, 51, a shell, 511, a groove, 52, a fixing seat, 521, a pin placing groove, 53, a protective sleeve, 54, a fixing sleeve, 55, a friction block, 6, a lens, a and a settling tank.

Detailed Description

The principles and features of the present invention are described below with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, the present invention provides an aspheric lens detector, which includes a tube seat 1, a tube cap 2, a pin 3, a detecting device 4 and a protecting device 5; the tube cap 2 is fixedly connected with the tube seat 1 and is positioned on one side of the tube seat 1, the pin 3 is fixedly connected with the tube seat 1 and is positioned on one side of the tube seat 1, which is far away from the tube cap 2, and the detection device 4 is arranged on the tube seat 1; an accommodating space is formed in the pipe cap 2, and the detection device 4 is arranged in the accommodating space and is fixedly connected with the pipe seat 1; the tube cap 2 is fixedly provided with a lens 6, and the lens 6 is positioned on one side of the tube cap 2 far away from the tube seat 1 to receive incident light as much as possible. As shown in fig. 1, the protection device 4 is sleeved outside the tube cap 2, the tube seat 1 and the pin 3, the internal shape of the protection device 5 is matched with the tube cap 2, the tube seat 1 and the pin 3, and the inner wall of the protection device 5 is in clearance fit with the lens 6.

In this embodiment, the pipe cap 2 protects the internal electrical components, and the protection device rigidly protects the pipe cap 2 and the lens 6, so as to prevent the pipe cap 2 and the lens 6 from being cut and rubbed by the outside and the pins 3 from being bent or broken when the detector is in a bumpy or vibrating environment, such as during transportation, and avoid economic loss.

In a possible embodiment, the protection device 5 comprises a protection sleeve 53 and a protection seat which are coaxially arranged, wherein the protection sleeve 53 is detachably connected with the adjacent edge of the protection seat, the protection sleeve 53 is sleeved on the outer side of the pipe cap 2 and is in clearance fit with the pipe cap 2; a settling tank a is arranged in the protective seat and is matched with the periphery of the tube seat 1; a plurality of pin placing grooves 521 are formed in the settling tank a, and the plurality of pin placing grooves 521 are sleeved on the plurality of pins 3 in a one-to-one correspondence manner. When the detector is not used, the protective sleeve 53 and the protective base can be sleeved outside the tube cap 2, the tube seat 1 and the pin 3 and connected, so that the core components of the detector can be protected. The protective sleeve 53 protects the tube cap 2 and the lens 6, the sedimentation groove a in the protective base limits and fixes the tube base 1, and the plurality of pin placing grooves 521 protect the pins 3 respectively. When the detector needs to be put into use, the core component of the detector can be taken out by releasing the connection between the protective sleeve 53 and the protective seat.

As shown in fig. 2, the protecting base includes a housing 51 and a fixing base 52, the housing 51 is sleeved on the periphery of the fixing base 52, that is, the fixing base 52 is embedded in the housing 51, an opening is provided on one end of the housing 51 facing the protecting cover 53, the fixing base 52 sinks along the opening end of the housing 51 to form a settling tank a, and the pin placing tank 521 is provided on the bottom of the settling tank a. When the detector is transported, each pin 3 is correspondingly placed in the pin placing groove 521, and the tube seat 1 is correspondingly placed in the settling tank a, so that the protection of each pin 3 is realized.

In order to realize the detachable connection between the protective sleeve 53 and the protective seat, the outer periphery of the shell 51 on the protective seat is provided with a groove 511, and correspondingly, the inner wall of the protective sleeve 53 is provided with a friction block 55 matched with the groove 511. When the shell 51 of the protective seat is connected with the protective sleeve 53, the open end of the protective sleeve 53 is pressed down towards the open end of the shell 51, and the friction block 55 is in plug fit with the groove 511, so that the connection between the protective sleeve 53 and the protective seat is realized. Through the clutch blocks 55 increase the friction when the protective sleeve 53 is installed on the shell 51, thereby preventing the protective sleeve 53 from falling off, through the cooperation of the groove 511 with the clutch blocks 55, the clutch blocks 55 can be embedded into the groove 511, thereby further increasing the friction between the protective sleeve 53 and the shell 51, and realizing the purpose of increasing the fixing effect of the protective sleeve 53. When the protective sleeve 53 is required to be opened to be connected with the protective seat, the protective sleeve 53 is pulled down, and then the detector core component inside can be taken out. In this embodiment, a resilient material, such as a rubber material, may be used as the friction block 55, so as to form a buffer, reduce wear, and increase the connection firmness between the protection sleeve 53 and the protection seat when the protection sleeve 53 is inserted into or pulled out of the protection seat.

As an alternative, the friction block 55 may be directly disposed on the protecting cover 53, or may be fixedly connected with the protecting cover 53 through a connecting member, for example, as shown in fig. 1, on the basis of the above embodiment, a groove 511 is disposed on the periphery of the outer shell 51 of the protecting base, a fixing sleeve 54 is fixedly disposed on one end of the protecting cover 53 facing the protecting base, a friction block 55 is disposed on the inner wall of the fixing sleeve 54, and when the protecting base is connected with the protecting cover 53, the friction block 55 is inserted into and matched with the groove 511. The friction force of the fixing sleeve 54 when the fixing sleeve 54 is mounted on the shell 51 is increased through the friction block 55, so that the protective sleeve 53 is prevented from falling off, and the friction block 55 can be embedded into the groove 511 through the matching of the groove 511 and the friction block 55, so that the friction between the fixing sleeve 54 and the shell 51 is further increased, and the purpose of increasing the fixing effect of the fixing sleeve 54 is achieved. In this embodiment, a material having elasticity, such as a rubber material, may be used as the fixing cover 54, and the friction block 55 may be integrally formed on the inner wall of the fixing cover 54. Fixed cover 54 and clutch blocks 55 adopt the rubber material, and rubber has elasticity, can stretch, will fixed cover 54 cover is established on shell 51, through the elasticity that rubber has, make protective sheath 53 can with shell 51 is fixed, thereby prevents shell 51 with protective sheath 52 drops, has strengthened the reliability of connecting.

Preferably, the groove 511 is an annular groove, the friction block 55 is shaped to fit the annular groove, and when the casing 51 of the protection seat is connected with the protection sleeve 53, the protection sleeve 53 can be inserted into the casing 51 at any circumferential angle along the axial direction of the annular groove, so that the convenience of operation is improved; and the friction block 55 is embedded in the annular groove and can also rotate in the circumferential direction, so that the circumferential stress possibly applied to the protective sleeve 53 or the shell 51 is reduced, the connection firmness is enhanced, the service life of the protection device 5 is prolonged, and the core element of the detector is better protected.

In order to further increase the reliability of the connection between the protective cover 53 and the housing 51, the plurality of grooves 511 and the plurality of friction blocks 55 are respectively arranged on the housing 51 and the protective cover 53, and the plurality of grooves 511 and the plurality of friction blocks 55 are correspondingly matched with each other one by one, so that the connection between the housing 51 and the protective cover 53 is firmer.

In this embodiment, referring to fig. 3, the detecting device 4 includes a photodiode 42, a transimpedance amplifier 41, and a capacitor 43 fixedly disposed on the tube seat 1, and the transimpedance amplifier 41, the photodiode 42, and the capacitor 43 are protected by the cap 2. The photosensitive surface of the photodiode 42 is disposed opposite the lens 6 to receive as much light as possible incident into the cap 2. Through lens 6 makes light can shine inside pipe cap 2, it is convenient photodiode 42 surveys, lens 6 is aspherical lens 6, and aspherical lens 6 generally is used for the higher application scene of transmission rate, can make light signal assemble the effect better like this, and the light signal that has bigger proportion assembles on photodiode 42's the photosurface for the responsivity (A/W) of detector improves.

The output end of the photodiode 42 is electrically connected to the input end of the transimpedance amplifier 41, and is configured to convert an optical signal into an electrical signal and transmit the electrical signal to the transimpedance amplifier 41; the output end of the transimpedance amplifier 41 is electrically connected with the pin 3 and is used for converting an electric signal into a voltage signal, amplifying the voltage signal and then differentially outputting the amplified voltage signal to the outside of the detector. One end of the capacitor 43 is connected to the output end of the photodiode 42, and the other end of the capacitor is grounded, so that the electric signal obtained by photoelectric conversion is filtered, and the voltage signal output by the detector is more accurate.

The utility model discloses an aspherical lens detector, through detecting device 4 detects light, and turn optical signal into electrical signal transmission for pin 3, pin 3 is provided with a plurality ofly, the quantity of pin standing groove 521 and the quantity cooperation of pin 3, through pin standing groove 521, make pin 3 can put into inside pin standing groove 521, prevent pin 3 bending, rupture in the transportation, through protective sheath 53 will the pipe cap 2 protects, prevents during the transportation that pipe cap 2 and lens 6 receive to cut and rub, fixed cover 54 is made by rubber, rubber has elasticity, can stretch, through with fixed cover 54 cover establish on shell 51, through the elasticity that rubber has, make protective sheath 53 can with shell 51 is fixed, thereby prevent shell 51 with protective sheath 53 from droing, the pin 3 and the pipe cap 2 are protected, and economic loss is prevented.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An aspheric lens detector is characterized by comprising a tube seat (1), a tube cap (2), pins (3), a detection device (4) and a protection device (5);

the tube cap (2) and the pins (3) are respectively fixedly arranged on two sides of the tube seat (1) which are deviated from each other, an accommodating space is formed in the tube cap (2), and the detection device (4) is arranged in the accommodating space and is fixedly connected with the tube seat (1); a lens (6) is arranged on the pipe cap (2);

the protection device (5) is sleeved outside the pipe cap (2), the pipe seat (1) and the pin (3), the inner shape of the protection device (5) is matched with the pipe cap (2), the pipe seat (1) and the pin (3), and the protection device (5) is in clearance fit with the lens (6).

2. An aspherical lens probe according to claim 1, characterized in that the protection device (5) comprises a protection sleeve (53) and a protection base which are coaxially arranged, wherein the protection sleeve (53) is detachably connected with the adjacent edge of the protection base; the protective sleeve (53) is sleeved on the outer side of the pipe cap (2) and is in clearance fit with the pipe cap (2); a settling tank (a) is arranged in the protective seat, and the settling tank (a) is matched with the periphery of the tube seat (1); a plurality of pin placing grooves (521) are arranged in the settling tank (a), and the plurality of pin placing grooves (521) are sleeved on the plurality of pins (3) in a one-to-one correspondence manner.

3. The aspheric lens detector as claimed in claim 2, wherein the protection base comprises a housing (51) and a fixed base (52), the housing (51) is sleeved on the periphery of the fixed base (52), the fixed base (52) sinks along the open end of the housing (51) to form a settling tank (a), and the pin placing groove (521) is arranged at the bottom of the settling tank (a).

4. An aspherical lens probe according to claim 2, wherein the outer circumference of the protection base is provided with a groove (511), the inner wall of the protection base (53) is provided with a friction block (55), and when the protection base is connected with the protection base (53), the friction block (55) is inserted into and matched with the groove (511).

5. An aspherical lens probe according to claim 2, wherein the periphery of the protection base is provided with a groove (511), a fixing sleeve (54) is fixedly arranged on one end of the protection base (53) facing the protection base, the inner wall of the fixing sleeve (54) is provided with a friction block (55), and when the protection base is connected with the protection base (53), the friction block (55) is in inserted fit with the groove (511).

6. An aspherical lens probe according to claim 4 or 5, characterized in that the friction block (55) is elastic.

7. Aspherical lens probe according to claim 6, characterized in that the groove (511) is an annular groove, the friction block (55) being shaped to fit into the annular groove, the friction block (55) fitting into the annular groove when the protection seat is connected to the protection sleeve (53).

8. An aspherical lens probe according to claim 6, wherein a plurality of the grooves (511) and a plurality of the rubbing blocks (55) are provided, and the plurality of grooves (511) and the plurality of rubbing blocks (55) are fitted in one-to-one correspondence.

9. An aspheric lens detector as claimed in claim 1, characterized in that the detecting means (4) comprises a photodiode (42) fixedly arranged on the tube base (1), a transimpedance amplifier (41) and a capacitor (43), the photosensitive surface of the photodiode (42) is arranged opposite to the lens (6), the output of the photodiode (42) is electrically connected to the input of the transimpedance amplifier (41), one end of the capacitor (43) is connected to the output of the photodiode (42), the other end is grounded, and the output of the transimpedance amplifier (41) is electrically connected to the pin (3).