CN215338607U - Lens assembling structure - Google Patents

Abstract

The utility model discloses a lens assembly structure, which comprises a driving device, an infrared lens and an infrared detection circuit, wherein the infrared detection circuit comprises an infrared detector, and the driving device controls the distance between the infrared detector and the infrared lens; in the utility model, the part of the first cylinder body, which is contacted with the second cylinder body, can be partially or completely made of metal material with good heat conduction, so that the first cylinder body and the second cylinder body have good heat conduction; according to the utility model, the infrared detector is provided with the first heat dissipation plate for heat dissipation, the first heat dissipation plate is made of a material with good heat conduction, and the first heat dissipation plate is connected with the inner wall of the first cylinder, so that heat can be conducted to the first cylinder, and the heat balance of the infrared detector is facilitated; the acquisition circuit is provided with a second heat dissipation plate, the second heat dissipation plate is made of a material with good heat conduction, and the second heat dissipation plate can be connected with the inner wall of the first cylinder so as to conduct heat to the first cylinder; the infrared lens and the second cylinder are connected in a clamping mode so as to be convenient to replace.

Description

Lens assembling structure

Technical Field

The utility model belongs to the field of thermal infrared imagers, and relates to a lens assembling structure.

Background

In the prior art, thermal infrared imagers generally use an electric focusing mechanism for driving lenses to complete focusing, for example, in a conventional structure, a lens or an overlay lens needs to be replaced, which may result in high cost for replacing the electric lens, or a large amount of infrared light is attenuated and an image is degraded after the lenses are overlapped; in addition, the hardware circuit of the existing thermal imager is generally divided into an infrared thermal image detector circuit part and a processing circuit part; the processing circuit portion generally generates a large amount of heat, for example, when processing an image; because the thermal infrared imager is very sensitive to heat, the precision of the thermal infrared image detector can be influenced by the heat generated by the processing circuit part in the working process; how to perform automatic focusing and how to solve the problem of how to reduce the influence of heat generated by a processing circuit part on an infrared thermal image detector as far as possible while performing automatic focusing, thereby improving the performance and the temperature measurement precision of a thermal imager.

Disclosure of Invention

The utility model provides a lens assembly structure for overcoming the defects of the prior art.

In order to achieve the purpose, the utility model adopts the following technical scheme: a lens mount structure characterized in that: including drive arrangement, infrared camera lens and infrared detection circuit, infrared detection circuit includes infrared detector, drive arrangement controls the interval of infrared detector and infrared camera lens, still include first barrel and second barrel, infrared camera lens is located the second barrel, infrared detector is located first barrel, drive arrangement is through the interval of driving first barrel control infrared detector and infrared camera lens, infrared detector disposes first heating panel and supplies its heat dissipation, first heating panel adopts the metal material, first heating panel is connected with the inner wall of first barrel, be convenient for with heat conduction to first barrel, be convenient for infrared detector's thermal balance.

Further, the method comprises the following steps of; the infrared detector is assembled on the guide rail, the guide rail is assembled in the guide groove of the second barrel body or the first barrel body, and the sliding mechanism is driven by the driving device.

Further, the method comprises the following steps of; the first barrel and the second barrel are connected in a mutually nested mode, the first barrel is nested in the second barrel, the outer wall of the first barrel and the inner wall of the second barrel form a nesting, the part or the whole of the part of the first barrel, which is in mutual contact with the second barrel, is made of metal materials, and the shapes of the first barrel and the second barrel are matched.

Further, the method comprises the following steps of; the first barrel is provided with a rear wall, the rear wall is made of metal, an opening is formed in the front wall of the first barrel opposite to the rear wall, the infrared detector is fixedly arranged between the front wall and the rear wall of the first barrel, and the position of the infrared detector is opposite to that of the opening so as to receive light of the infrared lens.

Further, the method comprises the following steps of; the infrared detection circuit further comprises an acquisition circuit, the acquisition circuit is provided with a signal acquisition and analog-to-digital conversion circuit and used for outputting AD value data of a thermal image after analog signals output by the infrared detector are subjected to analog-to-digital conversion, the acquisition circuit is provided with a second heating panel, the second heating panel is made of metal materials, and the second heating panel is connected with the inner wall of the first barrel and is convenient for conducting heat to the first barrel.

Further, the method comprises the following steps of; the infrared detector is connected with the acquisition circuit in a fixed mode of welding or socket splicing, the contact position of welding or socket splicing is the connection circuit of the infrared detector, the socket is welded on the acquisition circuit in a socket splicing mode, the acquisition circuit with the socket circuit is assembled outside the rear wall of the first barrel or outside the second barrel, an orifice through the socket is reserved on the rear wall, a pin of the infrared detector is connected with the acquisition circuit through the socket, the rear wall is simultaneously used as a heat dissipation plate of the infrared detector, and a heat insulation material layer is arranged between the rear wall and the acquisition circuit, so that the heat of the acquisition circuit is not easily conducted to the infrared detector; the infrared detector is connected with the pin of the infrared detector and the acquisition circuit in a movable mode of a conducting wire, a flexible wire or an FPC flexible circuit, and a socket circuit of the acquisition circuit is connected with the analog-to-digital conversion circuit through the conducting wire, the flexible wire or the flexible flat cable; the connection between the infrared detector and the acquisition circuit has two connection modes of fixing and moving.

Further, the method comprises the following steps of; the second barrel comprises a first cavity and a second cavity, the first cavity and the second cavity are isolated through a spacer block, an opening is fixedly formed in the spacer block, the first cavity and the second cavity are communicated through the opening, the infrared lens is wholly or partially located in the first cavity, the first barrel is located in the second cavity, the infrared detector and the infrared lens are communicated through the opening and an opening, and the opening are used as light paths, so that the infrared detector can receive light of the infrared lens conveniently.

Further, the method comprises the following steps of; the driving device and one of the first cylinder or the second cylinder are arranged in a fixed relative position mode, and are arranged in a movable relative position mode; the driving device comprises a motor and a motor driving shaft, a partition plate is fixedly arranged in the shell, the motor is fixedly arranged on the partition plate, the motor driving shaft extends into the second cavity and is connected with the rear wall of the first cylinder, and the motor driving shaft enables the first cylinder to axially move in the second cylinder to control the distance between the infrared detector and the infrared lens.

Further, the method comprises the following steps of; the control device comprises an adjusting mechanism, a magnetic ring and an induction circuit, the adjusting mechanism is positioned outside the second cylinder body, the adjusting mechanism performs rotary adjustment, the magnetic ring is assembled on the adjusting mechanism, the adjusting mechanism rotates to drive the magnetic ring to synchronously rotate, the induction circuit is positioned on the shell and corresponds to the magnetic ring, and when the magnetic ring rotates, the induction circuit generates a trigger signal to enable the driving device to drive the first cylinder body and the second cylinder body to move; the second cylinder body also comprises a baffle plate for thermal image verification, the baffle plate is positioned on a light path of the infrared detector for receiving the infrared lens, and the baffle plate is positioned at the through opening, the opening or between the through opening and the opening; the infrared lens is partially or completely positioned in the third cylinder, the first cylinder is positioned in the second cylinder, and the third cylinder is connected with the second cylinder; the connection mode of the infrared lens and the second cylinder body comprises one or more of threads, buckles, screw fixation or magnetic attraction; the acquisition circuit is configured to be an image processing circuit with thermal image data or a function thereof, and the acquisition circuit is partially or completely assembled inside the first cylinder, outside the first cylinder, inside the second cylinder or outside the second cylinder; the acquisition circuit consists of two parts, wherein one part is welded with an infrared detector, namely an infrared detector connecting circuit, the other part is provided with an analog-digital conversion circuit, the two parts are connected through a lead or a soft flat cable such as an FPC flexible circuit, the analog-digital conversion circuit has small heat productivity, and the acquisition circuit is completely arranged in the first cylinder; the second cylinder is fixedly provided with a rear cover; the central lines of the motor driving shaft and the first cylinder are coaxial; a metal shell is wrapped outside the motor for electromagnetic shielding; the first cylinder, the second cylinder and the third cylinder are made of metal materials.

In conclusion, the utility model has the advantages that:

1) in the utility model, the part of the first cylinder body, which is in contact with the second cylinder body, can be partially or completely made of metal material with good heat conduction, so that the first cylinder body and the second cylinder body have good heat conduction.

2) According to the utility model, the infrared detector is provided with the first heat dissipation plate for heat dissipation, the first heat dissipation plate is made of a material with good heat conduction, and the first heat dissipation plate is connected with the inner wall of the first cylinder body so as to conduct heat to the first cylinder body and facilitate heat balance of the infrared detector; the acquisition circuit is provided with the second heating panel, and the second heating panel adopts the good material of heat conduction, and the second heating panel can be connected with the inner wall of first barrel to be convenient for with heat conduction to first barrel.

3) The infrared lens and the second barrel are connected in a clamping mode so as to be convenient to replace.

4) The control device controls the driving device, the adjusting mechanism rotates to drive the magnetic ring to rotate synchronously, the induction circuit generates a trigger signal when the magnetic ring rotates, and the driving device enables the first cylinder and the second cylinder to move, so that the aim of focusing is fulfilled.

5) The utility model ensures that the infrared detector has good heat dissipation performance, the second cylinder is in good contact with the metal structural part of the infrared lens or the metal connecting piece thereof, the heat of the infrared detector can be transferred from the first cylinder to the second cylinder to the infrared lens, or the second cylinder can be in good contact with the metal structural part of the shell or the metal heat dissipation part thereof to keep conduction, so that the first cylinder and the second cylinder play a role in stabilization and heat dissipation, and the whole infrared detector has the advantages of electromagnetic interference, simple processing and stable operation.

6) In order to reduce the interference of the motor of the driving device to the circuit, the metal shell is wrapped outside the motor for electromagnetic shielding.

7) The first cylinder body and the second cylinder body are designed into a nested structure which is matched with each other, the first cylinder body can move in the second cylinder body, the first cylinder body is connected with the motor driving shaft, the first cylinder body moves according to the motor driving shaft driven by the motor, and the contact surface of the first cylinder body and the second cylinder body is stable, so that stable and reliable driving can be realized.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention.

FIG. 2 is a schematic diagram of the present invention.

FIG. 3 is a schematic diagram of the present invention.

FIG. 4 is a schematic diagram of the present invention.

FIG. 5 is a schematic view of the present invention.

FIG. 6 is a schematic view of the present invention.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

All directional indicators (such as up, down, left, right, front, rear, lateral, longitudinal … …) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the movement, etc. in a particular posture, and if the particular posture is changed, the directional indicator is changed accordingly.

The first embodiment is as follows:

as shown in fig. 1-2, a lens assembly structure includes a first barrel 1, a second barrel 2, a driving device 8, an infrared lens 6 located in the second barrel 2, and an infrared detection circuit located in the first barrel 1, where the infrared detection circuit includes an infrared detector 13, and the driving device 8 controls a distance between the infrared detector 13 and the infrared lens 6 by adjusting a position of the first barrel 1.

The first cylinder 1 and the second cylinder 2 are located in the casing 10, as shown in fig. 1, the first cylinder 1, the second cylinder 2 and the display screen 9 are sequentially distributed from left to right in the horizontal direction, and the handle 15 is fixedly arranged below the casing 10.

In the embodiment, the first cylinder 1 and the second cylinder 2 are connected in a mutually nested manner, specifically, the first cylinder 1 is nested in the second cylinder 2, the outer wall of the first cylinder 1 and the inner wall of the second cylinder 2 form a nested manner, and a gap between the outer wall of the first cylinder 1 and the inner wall of the second cylinder 2 can ensure smooth movement of the two cylinders in relative movement and can also realize good heat dissipation; in addition, the contact part of the first cylinder 1 and the second cylinder 2 can be partially or completely made of good heat conduction materials. For example, a metal material, so as to ensure good thermal conductivity between the two; the first cylinder 1 and the second cylinder 2 are matched in shape, the cross sections of the first cylinder 1 and the second cylinder 2 are regular, such as circular, oval or square, and irregular shapes can be adopted, as long as the relative movement between the first cylinder 1 and the second cylinder is ensured, and the basic functions can be realized.

In this embodiment, the first cylinder 1 has a rear wall made of metal, the rear wall and the cylinder are connected in a sealing manner, for example, a screw matched with the shaft is disposed on the rear wall, and is connected with the driving device 8, for example, a nut matched with the shaft is disposed on the rear wall, and when the driving shaft of the driving device 8 rotates, the first cylinder 1 can be driven to move back and forth; in other embodiments, the rear wall may be eliminated, the driving device 8 and the first cylinder 1 may be connected in other manners, for example, a bracket located on the cylinder 1 is connected to the driving device 8, the front wall of the first cylinder 1 opposite to the rear wall is provided with an opening 11, the infrared detector 13 is fixedly arranged between the front wall and the rear wall of the first cylinder 1, and the infrared detector 13 is opposite to the opening 11 to receive the light of the infrared lens 6; the infrared detector 13 is configured with a first heat dissipation plate (not shown) for heat dissipation, the first heat dissipation plate is made of a material with good heat conduction, such as a metal material, and the first heat dissipation plate is connected with the inner wall of the first cylinder 1 so as to conduct heat to the first cylinder 1 and facilitate heat balance of the infrared detector 13; in order to reduce the interference of stray light to the infrared detector 13, the first cylinder 1 and the first heat dissipation plate form a closed space.

The infrared detection circuit further comprises an acquisition circuit, the acquisition circuit is provided with a signal acquisition and analog-to-digital conversion circuit for example, and is used for outputting AD value data of a thermal image after analog-to-digital conversion is carried out on an analog signal output by the infrared detector 13, the acquisition circuit is provided with a second heat dissipation plate, the second heat dissipation plate is made of a material with good heat conduction, such as a metal material, and can be connected with the inner wall of the first cylinder 1 so as to conduct heat to the first cylinder; the first heat dissipation plate used for heat dissipation of the infrared detector 13 and the second heat dissipation plate used for heat dissipation of the acquisition circuit can be adjusted and adapted in shape and position in practical application; the acquisition circuit can also be configured as an image processing circuit with thermal image data or a function thereof, such as converting into data for display, recording and the like, and outputting; in this embodiment, the acquisition circuit may be partially or completely assembled inside the first cylinder 1, outside the first cylinder 1, inside the second cylinder 2, or outside the second cylinder 2; the acquisition circuit can be composed of two parts, one part is welded with the infrared detector 13, namely an infrared detector connecting circuit, the other part is provided with an analog-digital conversion circuit, the two parts are connected through a lead or a flexible flat cable such as an FPC flexible circuit, and when the analog-digital conversion circuit has small heat productivity, the acquisition circuit can be completely arranged in the first cylinder 1.

The infrared detector 13 and the acquisition circuit can be connected in a fixed or movable way, specifically, the infrared detector 13 can be connected with the acquisition circuit in a fixed way of welding or socket plugging, at the moment, the contact position of welding or socket plugging is the connection circuit of the infrared detector 13, when the socket plugging way is adopted, the socket is welded on the acquisition circuit, the acquisition circuit with the socket circuit is assembled outside the rear wall of the first barrel 1 or outside the second barrel 2, the rear wall is provided with an orifice through which the socket passes, the pin of the infrared detector 13 is connected with the acquisition circuit 14 through the socket, by adopting the way, the rear wall can be simultaneously used as a heat radiation plate of the infrared detector 13, a heat insulation material layer can be arranged between the rear wall and the acquisition circuit, so that the heat of the acquisition circuit is not easy to be conducted to the infrared detector 13, and the pin of the infrared detector 13 and the acquisition circuit can be connected in a movable way of a lead, a flexible wire or an FPC flexible circuit, in this embodiment, the socket circuit of the acquisition circuit is connected with the analog-to-digital conversion circuit through a wire, a flexible wire or a flexible flat cable; of course, the two connection modes of fixing and moving can be achieved, for example, a part is connected by a lead, a flexible wire or an FPC flexible circuit, and a part is welded.

In the embodiment, the wires, the flexible wires or the flexible circuits are used for connection, so that on one hand, the weight in the first barrel 1 can be reduced, the driving device 8 can be conveniently dragged, and on the other hand, the influence of the heating of the acquisition circuit on the infrared detector 13 can be reduced; when a conducting wire, a flexible wire or a flexible circuit is used for connection and needs to penetrate through the first cylinder body 1 or the second cylinder body 2, in practical application, corresponding switching ports are reserved at corresponding positions of the first cylinder body 1 and the second cylinder body 2 to be connected with an inner FPC and an outer FPC, or holes penetrating through the FPC and the flexible circuit are reserved, in addition, a part of the acquisition circuit which generates little heat or/and is convenient to design is generally fixedly connected with the infrared detector 13, and a part which generates much heat or/and is difficult to design is movably connected with the infrared detector 13.

As shown in fig. 1, the second cylinder 2 includes a first cavity 21 and a second cavity 22, the first cavity 21 and the second cavity 22 are located at the left and right positions of the second cylinder 2, the present invention does not limit the heights of the first cavity 21 and the second cavity 22, that is, the heights of the first cavity 21 and the second cavity 22 may be the same or different, the first cavity 21 and the second cavity 22 are both communicated with the external space and are isolated by a spacer 23, a through hole 231 is fixedly disposed on the spacer 23, the first cavity 21 and the second cavity 22 are communicated through the through hole 231, the infrared lens 6 is located in the first cavity 21 and can be wholly or partially located in the first cavity 21, the temperature stability of the cavity between the infrared lens 6 and the infrared detector 13 can be further ensured, thereby improving the performance of the thermal imager, the first cylinder 1 is located in the second cavity 22, the infrared detector 13 and the infrared lens 6 are communicated with the opening 11 through the through hole 231, the passage of the port 231 and the opening 11 serves as a light path for the infrared detector 13 to receive the light of the infrared lens 6.

The infrared lens 6 is fixedly connected with the second cylinder 2, and can adopt one or more of threads, buckles, screw fixation or magnetic attraction, and in the embodiment, the infrared lens 6 is connected with the second cylinder 2 in a buckling manner so as to be convenient for replacement.

In this embodiment, the second cylinder 2 further includes a stopper (not shown) for thermal image verification, the stopper is located on the light path of the infrared detector 13 receiving the infrared lens 6, specifically, the stopper is located at the through hole 231, the opening 11 or between the through hole 231 and the opening 11, and preferably, the stopper is located at the opening 11.

In the embodiment, the driving device 8 drives the first cylinder 1 to move the first cylinder 1 relative to the second cylinder 2, so as to adjust the distance between the infrared detector 13 and the infrared lens 6, thereby achieving the purpose of focusing, the driving device 8 may be arranged in a manner of fixing the relative position with one of the first cylinder 1 or the second cylinder 2, and arranged in a manner of moving the relative position with the other, for driving convenience, it is preferable that the driving device 8 is arranged in a manner of fixing the relative position with the second cylinder 2, and arranged in a manner of moving the relative position with the first cylinder 1; the driving device 8 can adopt various motors, pneumatic or magnetic, preferably adopts a stepping motor, and the driving device 8 comprises a motor and a motor driving shaft.

The driving device 8 is specifically installed, for example, by fixedly installing a partition 12 in the housing 10, fixedly installing a motor on the partition 12, driving a motor shaft to extend into the second cavity 22 and connect with the rear wall of the first cylinder 1, and driving the motor shaft by the motor to make the first cylinder 1 axially move, such as forward or backward, in the second cylinder 2, so as to control the distance between the infrared detector 13 and the infrared lens 6, thereby achieving the purpose of auto-focusing, in other manners, the driving device 8 may also be configured on a part where the relative position of the cylinder 2 is fixed, such as a fixing bracket located at the rear part of the cylinder 2.

Because the first cylinder 1 and the second cylinder 2 form a nested structure matched with each other, the first cylinder 1 can move in the second cylinder 2, the first cylinder 1 is connected with a motor driving shaft, the first cylinder 1 moves according to the motor driving shaft driven by a motor, and the contact surface of the first cylinder 1 and the second cylinder 2 is stable, so that stable and reliable driving can be realized.

The utility model also comprises a control device for controlling the driving device 8, the control device comprises an adjusting mechanism 3, a magnetic ring 4 and an induction circuit 5, the adjusting mechanism 3 is positioned outside the second cylinder 2, the adjusting mechanism 3 can be rotationally adjusted, the magnetic ring 4 is assembled on the adjusting mechanism 3, the adjusting mechanism 3 rotates to drive the magnetic ring 4 to synchronously rotate, the induction circuit 5 is positioned on the shell 10 and corresponds to the magnetic ring 4, when the magnetic ring 4 rotates, the induction circuit 5 generates a trigger signal, and the driving device 8 drives the first cylinder 1 and the second cylinder 2 to move, so that the aim of focusing is fulfilled.

As shown in fig. 2, the magnetic ring 4 is a circular ring structure, and the value of the ring difference is greater than the value of the ring thickness, that is, the magnetic ring 4 is a transverse ring.

This embodiment is for guaranteeing that infrared detector 13 possesses good thermal diffusivity, make the second barrel 2 and infrared lens 6's metallic structure spare or its metal connecting piece good contact, make infrared detector 13's heat, can transmit from first barrel 1 to second barrel 2 to infrared lens 6, or can keep switching on with the metallic structure spare of second barrel 2 and casing 10 or its metal heat dissipation spare good contact, thereby make first barrel 1 and second barrel 2 play firm effect and radiating effect, and make whole possess electromagnetic interference, processing is simple and the stable advantage of operation.

Example two:

as shown in fig. 3, the present embodiment is different from the first embodiment in that in the first embodiment, the second cylinder 2 includes a first cavity 21 and a second cavity 22, the infrared lens 6 is located in the first cavity 21, and the infrared detector 13 is located in the second cavity 22; in this embodiment, a third cylinder 300 is provided, the infrared lens 6 is partially or completely located in the third cylinder 300, the first cylinder 1 is located in the second cylinder 2, and the third cylinder 300 is connected to the second cylinder 2.

Example three:

as shown in fig. 4, the present embodiment is different from the first embodiment in that the second cylinder 2 is not provided with a rear cover, and in the present embodiment, the second cylinder 2 is fixedly provided with a rear cover 25 to ensure the stability of the temperature in the second cylinder 2.

Example four:

as shown in fig. 5-6, the difference between the present embodiment and the first embodiment is that in the first embodiment, the magnetic ring 4 is a horizontal ring, i.e. the value of the ring difference is greater than the value of the ring thickness, while in the present embodiment, the magnetic ring 4 is a vertical ring, i.e. the value of the ring difference is less than the value of the ring thickness, so as to further improve the space utilization of the infrared lens 6 and simplify the design.

Furthermore, in the above described embodiments, the nested connection between the first barrel 1 and the second barrel 2 may be in a fully or partially nested manner.

In the above embodiment, the motor drive shaft and the centre line of the first cylinder 1 are preferably coaxial.

In the above embodiment, in order to reduce the interference of the motor of the driving device to the circuit, it is preferable that a metal casing is wrapped outside the motor for electromagnetic shielding.

In the above embodiment, the protruding portion of the front shell of the housing 10 is of an up-down structure or a left-right structure, and partially covers the adjusting mechanism 3 or the infrared lens 6, so as to protect the lens without affecting the operation of the adjusting mechanism 3.

The first cylinder 1, the second cylinder 2 and the third cylinder 300 are made of a material with good heat conduction, such as a metal material.

Through the technical scheme, the overall size and weight can be greatly reduced, the heat dissipation structure is improved, and furthermore, related circuits and structures such as a shell and a local shell can be added to form instruments of various forms, such as various handheld thermal imagers, side-holding portable thermal imagers, online thermal imagers, head-mounted thermal imagers and the like, wherein the problems of the electrical connection line between the first barrel body 1 and the second barrel body 2 and the like can be solved by the mode that a line passing groove is reserved in a connecting piece assembled by the first barrel body and the second barrel body.

In other embodiments, the infrared detection circuit may only include the infrared detector 13, and at this time, an analog-to-digital conversion circuit is provided inside the infrared detector 13, and a signal of the infrared detector 13, such as AD value data of a thermal image, is directly output through a pin interface; or the infrared detection circuit has the functions of part or all of the processing circuits, such as one or more of AD value data used for outputting thermal images, data used for displaying, recording and the like after thermal image processing and the like.

In other examples, the drive device 8 may also include a speed change mechanism.

In other examples, the present invention may also omit the first cylinder 1 or the second cylinder 2, and the sliding mechanism is movably connected to the second cylinder 2 (when the first cylinder 1 is canceled) or the first cylinder 1 (when the second cylinder 2 is canceled) through the sliding mechanism, and the sliding mechanism is driven by the driving device 8; the sliding mechanism adopts a guide rail and a guide groove, the infrared detector 13 is assembled on the guide rail, and the guide rail is assembled in the guide groove of the second barrel 2 or the first barrel 1.

It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all 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.

Claims (9)

1. A lens mount structure characterized in that: including drive arrangement, infrared camera lens and infrared detection circuit, infrared detection circuit includes infrared detector, drive arrangement controls the interval of infrared detector and infrared camera lens, still include first barrel and second barrel, infrared camera lens is located the second barrel, infrared detector is located first barrel, drive arrangement is through the interval of driving first barrel control infrared detector and infrared camera lens, infrared detector disposes first heating panel and supplies its heat dissipation, first heating panel adopts the metal material, first heating panel is connected with the inner wall of first barrel, be convenient for with heat conduction to first barrel, be convenient for infrared detector's thermal balance.

2. A lens mount as claimed in claim 1, wherein: the infrared detector is assembled on the guide rail, the guide rail is assembled in the guide groove of the second barrel body or the first barrel body, and the sliding mechanism is driven by the driving device.

3. A lens mount as claimed in claim 2, wherein: the first barrel and the second barrel are connected in a mutually nested mode, the first barrel is nested in the second barrel, the outer wall of the first barrel and the inner wall of the second barrel form a nesting, the part or the whole of the part of the first barrel, which is in mutual contact with the second barrel, is made of metal materials, and the shapes of the first barrel and the second barrel are matched.

4. A lens mount structure according to claim 2 or 3, wherein: the first barrel is provided with a rear wall, the rear wall is made of metal, an opening is formed in the front wall of the first barrel opposite to the rear wall, the infrared detector is fixedly arranged between the front wall and the rear wall of the first barrel, and the position of the infrared detector is opposite to that of the opening so as to receive light of the infrared lens.

5. A lens mount as claimed in claim 1, wherein: the infrared detection circuit further comprises an acquisition circuit, the acquisition circuit is provided with a signal acquisition and analog-to-digital conversion circuit and used for outputting AD value data of a thermal image after analog signals output by the infrared detector are subjected to analog-to-digital conversion, the acquisition circuit is provided with a second heating panel, the second heating panel is made of metal materials, and the second heating panel is connected with the inner wall of the first barrel and is convenient for conducting heat to the first barrel.

6. A lens mount as claimed in claim 1, wherein: the infrared detector is connected with the acquisition circuit in a fixed mode of welding or socket splicing, the contact position of welding or socket splicing is the connection circuit of the infrared detector, the socket is welded on the acquisition circuit in a socket splicing mode, the acquisition circuit with the socket circuit is assembled outside the rear wall of the first barrel or outside the second barrel, an orifice through the socket is reserved on the rear wall, a pin of the infrared detector is connected with the acquisition circuit through the socket, the rear wall is simultaneously used as a heat dissipation plate of the infrared detector, and a heat insulation material layer is arranged between the rear wall and the acquisition circuit, so that the heat of the acquisition circuit is not easily conducted to the infrared detector; the infrared detector is connected with the pin of the infrared detector and the acquisition circuit in a movable mode of a conducting wire, a flexible wire or an FPC flexible circuit, and a socket circuit of the acquisition circuit is connected with the analog-to-digital conversion circuit through the conducting wire, the flexible wire or the flexible flat cable; the connection between the infrared detector and the acquisition circuit has two connection modes of fixing and moving.

7. A lens mount structure according to claim 2 or 3, wherein: the second barrel comprises a first cavity and a second cavity, the first cavity and the second cavity are isolated through a spacer block, an opening is fixedly formed in the spacer block, the first cavity and the second cavity are communicated through the opening, the infrared lens is wholly or partially located in the first cavity, the first barrel is located in the second cavity, the infrared detector and the infrared lens are communicated through the opening and an opening, and the opening are used as light paths, so that the infrared detector can receive light of the infrared lens conveniently.

8. A lens mount as claimed in claim 1, wherein: the driving device and one of the first cylinder or the second cylinder are arranged in a fixed relative position mode, and are arranged in a movable relative position mode; the driving device comprises a motor and a motor driving shaft, a partition plate is fixedly arranged in the shell, the motor is fixedly arranged on the partition plate, the motor driving shaft extends into the second cavity and is connected with the rear wall of the first cylinder, and the motor driving shaft enables the first cylinder to axially move in the second cylinder to control the distance between the infrared detector and the infrared lens.

9. A lens mount as claimed in claim 1, wherein: the control device comprises an adjusting mechanism, a magnetic ring and an induction circuit, the adjusting mechanism is positioned outside the second cylinder body, the adjusting mechanism performs rotary adjustment, the magnetic ring is assembled on the adjusting mechanism, the adjusting mechanism rotates to drive the magnetic ring to synchronously rotate, the induction circuit is positioned on the shell and corresponds to the magnetic ring, and when the magnetic ring rotates, the induction circuit generates a trigger signal to enable the driving device to drive the first cylinder body and the second cylinder body to move; the second cylinder body also comprises a baffle plate for thermal image verification, the baffle plate is positioned on a light path of the infrared detector for receiving the infrared lens, and the baffle plate is positioned at the through opening, the opening or between the through opening and the opening; the infrared lens is partially or completely positioned in the third cylinder, the first cylinder is positioned in the second cylinder, and the third cylinder is connected with the second cylinder; the connection mode of the infrared lens and the second cylinder body comprises one or more of threads, buckles, screw fixation or magnetic attraction; the acquisition circuit is configured to be an image processing circuit with thermal image data or a function thereof, and the acquisition circuit is partially or completely assembled inside the first cylinder, outside the first cylinder, inside the second cylinder or outside the second cylinder; the acquisition circuit consists of two parts, wherein one part is welded with an infrared detector, namely an infrared detector connecting circuit, the other part is provided with an analog-digital conversion circuit, the two parts are connected through a lead or a soft flat cable such as an FPC flexible circuit, the analog-digital conversion circuit has small heat productivity, and the acquisition circuit is completely arranged in the first cylinder; the second cylinder is fixedly provided with a rear cover; the central lines of the motor driving shaft and the first cylinder are coaxial; a metal shell is wrapped outside the motor for electromagnetic shielding; the first cylinder, the second cylinder and the third cylinder are made of metal materials.

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