thermal imaging camera

The thermal imaging camera addresses thermal interference issues by using an arranging device to position and insulate the visual and infrared assemblies, improving measurement accuracy and performance in handheld devices.

DE102023213295A1Pending Publication Date: 2025-06-26ROBERT BOSCH GMBH

Patent Information

Application Number
DE102023213295
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-12-22
Publication Date
2025-06-26

AI Technical Summary

Technical Problem

Existing thermal imaging cameras face challenges in reducing thermal influences that affect the accuracy and performance of temperature measurements, particularly in handheld devices.

Method used

The thermal imaging camera incorporates an arranging device to position the visual assembly relative to the infrared assembly, using a cooling element to minimize thermal interference and a positioning device to thermally insulate and decouple the assemblies, along with a shielding element to block thermal radiation, all within a housing designed to protect components from environmental influences.

Benefits of technology

This configuration reduces thermal interference, enhancing the accuracy and performance of temperature measurements by maintaining the integrity of the infrared and visual assemblies, thereby improving the reliability and precision of two-dimensional temperature information capture.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 00000000_0000_ABST
    Figure 00000000_0000_ABST
Patent Text Reader

Abstract

A thermal imaging camera (100) is disclosed, comprising a housing (110), a front mount (120), an infrared assembly (140) for detecting infrared radiation, a visual assembly (160) for receiving visual radiation, the infrared assembly (140) and the visual assembly (160) being arranged substantially within the housing (110), and at least one cooling element (180) for cooling at least the infrared assembly (140). It is proposed that the thermal imaging camera (100) has an arranging device (200) which is designed to arrange the visual assembly (160) with respect to the infrared assembly (140).
Need to check novelty before this filing date? Find Prior Art

Description

The present invention relates to a thermal imaging camera according to the preamble of claim 1.Prior ArtDE 10 2016 219 388 A1 already discloses a hand-held thermal imaging camera for the contactless determination of two-dimensional temperature information of a scene, having a housing with at least one infrared detector array, which consists of a multiplicity of pixels sensitive to infrared radiation.Disclosure of the InventionThe present invention is based on a thermal imaging camera having a housing, having a front holder, having an infrared assembly for detecting infrared radiation, having a visual assembly for receiving visual radiation, wherein the infrared assembly and the visual assembly are arranged substantially within the housing, and having at least one cooling element at least for cooling the infrared assembly. It is proposed that the thermal imaging camera has an arranging device which is designed to arrange the visual assembly to the infrared assembly.The invention provides a thermal imaging camera in which thermal influences can be reduced by the arranging device arranging the visual assembly to the infrared assembly."Thermal imaging camera" refers to a device for contactless measurement of two-dimensional temperature information of a scene while outputting at least one information item relating to the two-dimensional temperature information item, for example while outputting one or more temperature information items, advantageously two or more temperature measurement values, a temperature distribution or the like. In one embodiment of the thermal imaging camera, this two-dimensional temperature information can consist in the form of a thermal image composed of a plurality of spatially resolved and / or spatially angle resolved temperature measurement values.The thermal imaging camera can be designed as a hand-held thermal imaging camera. The "hand-held" thermal imaging camera is to be understood in particular to mean that the thermal imaging camera can be transported without the aid of a transport machine only with hands, in particular with one hand, of a user. In particular, the thermal imaging camera can also be guided through a room during a measurement process in a movement performed freely by the user of the thermal imaging camera. The mass of the hand-held thermal imaging camera is in particular less than 5 kg, advantageously less than 3 kg and particularly advantageously less than 1 kg.The housing can be designed as a shell housing with two half shells. The housing has a handle or a handle area with which the thermal imaging camera can be guided by the user. The housing accommodates at least essential functional components of the thermal imaging camera. Thus, the infrared assembly and the visual assembly are substantially disposed within the housing. Furthermore, the frog holder, the cooling element and / or the arrangement device can be arranged substantially within the housing. Furthermore, the housing accommodates at least one control unit, an input and / or an output device, in particular a display device, an energy supply unit and an evaluation unit. The thermal imaging camera can have at least one operating element which is designed to operate the thermal imaging camera. Furthermore, the housing can have at least one inlet opening into which the visual radiation and / or infrared radiation can enter.The front bracket may be received by the housing. In this case, the front holder can close off the housing from the environment. The functional components of the thermal imaging camera can be substantially protected from environmental influences within the housing. The front mount has an opening for the infrared assembly and the visual assembly. The front holder has a receptacle for the visual assembly. The receptacle for the visual assembly is designed to at least partially surround the visual assembly. The visual assembly can abut the receptacle of the front holder by means of an end face. It is possible for the visual assembly to bear against the front holder, in particular the receptacle of the front holder, by means of a visual optical system. The front bracket may be made of, for example, a thermally conductive material such as aluminum.The visual assembly comprises at least one visual camera for recording at least one image and / or one video in the visual spectrum of the radiation, an optics for the visual camera and a printed circuit board for the visual camera. The visual assembly, in particular the printed circuit board for the visual camera, is connected to the control unit by signal technology. The optics for the visual camera is configured to refract, bundle and / or focus the visual radiation and to direct it to the visual camera.In addition, the front holder has a further receptacle. The further receptacle of the front holder can have an adhesive layer or an adhesive pad. The further receptacle of the front holder is designed to receive at least one infrared window and / or a glass pane for the visual assembly. It is further possible for the further receptacle of the front holder to receive, for example, a laser and a lens for a light source, such as, for example, an LED. Furthermore, a seal can be applied and / or glued onto the front holder.The infrared assembly may include an infrared housing, an infrared sensor, an infrared optics, and / or an infrared circuit board. The infrared housing is configured to arrange the infrared optics relative to the infrared sensor. The infrared sensor can be designed as an infrared detector array. It is also conceivable for the infrared sensor to be designed as a bolometer, in particular a micro-bolometer. For measuring infrared radiation, the thermal imaging camera has the infrared assembly and the evaluation unit. The infrared sensor comprises a plurality of pixels sensitive to infrared radiation. The infrared sensor detects infrared radiation emitted in a solid angle range and projected onto the surface thereof and generates a detection signal based on a detected intensity of incident infrared radiation. The infrared sensor has a two-dimensional detection surface on a surface facing the scene, on which the plurality of pixels sensitive to infrared radiation is arranged. Each of the pixels of the infrared detector array can determine image information, assuming illumination by means of infrared radiation, and generate a detection signal therefrom. The detection signal provided by each pixel can then be used to determine temperature information. In particular, the detection signal of each pixel can be forwarded to the evaluation unit of the thermal imaging camera. The evaluation unit can evaluate the detection signal individually and / or in combination with detection signals of other pixels. The infrared optics are configured to refract, bundle and / or focus the infrared radiation and to direct it onto the infrared sensor. The infrared sensor may be disposed on the infrared board. Thus, the infrared sensor can be arranged between the infrared circuit board and the infrared optics. The infrared circuit board is connected by signal technology to the control unit and / or the evaluation unit, so that the detection signal can be conducted from the infrared assembly to the control unit and / or evaluation unit. The infrared assembly can at least partially engage in a recess of the front holder. The infrared assembly can engage in the recess by means of the infrared optics. The infrared assembly may define an optical axis, which may be a main incident direction of the infrared radiation. In particular, "axial" is to be understood to mean substantially parallel to the optical axis. Whereas, "radial" is to be understood to mean substantially perpendicular to the optical axis.The thermal imaging camera has the control unit at least for controlling the infrared assembly and / or the visual assembly. For this purpose, the control unit is connected by signal technology to at least the infrared module and the visual module. Furthermore, the control unit is connected to the evaluation unit by signal technology. For example, the control unit can be arranged in a handle of the hand-held power tool, in a region of a power supply interface or in a region of the infrared assembly and / or the visual assembly. The control unit has at least one main board. The motherboard may be disposed opposite the front mount. For example, the motherboard may be arranged towards the output device.The "evaluation unit" of the thermal imaging camera is to be understood as a unit which has at least one information input for accepting detection signals, an information processing unit for processing, in particular evaluating, the accepted detection signals, and an information output for forwarding the processed and / or evaluated detection signals and / or evaluation information. The evaluation unit advantageously has components which comprise at least one processor, a memory and an operating program with evaluation and calculation routines. In particular, the electronic components of the evaluation unit can be arranged on a printed circuit board or printed circuit board, preferably on a common printed circuit board with the control unit of the thermal imaging camera for controlling the thermal imaging camera. Furthermore, the control unit and the evaluation unit can also be embodied as a single component, for example in the form of a microcontroller. The evaluation unit is provided for receiving, evaluating detection signals generated by the infrared detector array, in particular by the pixels that can be connected to the evaluation unit in terms of signal technology, and for carrying out an evaluation of the two-dimensional temperature information of the scene on the basis of detection signals of at least a plurality of illuminated pixels of the infrared detector array. The evaluation unit is preferably provided for the purpose of carrying out, on the basis of the detection signals of at least a plurality of illuminated pixels, an evaluation of one or more temperature measurement values, in particular also averaged temperature measurement values, particularly preferably of a thermal image. In this way, the evaluation unit serves for the determination of the two-dimensional temperature information, in particular the thermal image, from measured infrared radiation. The evaluated two-dimensional temperature information, in particular the thermal image, can be provided by the evaluation unit for further processing and / or output to the user of the thermal imaging camera by means of the output device and / or an external device by means of a data communication interface.The output device is designed to display the two-dimensional temperature information, in particular the thermal image, to provide information to the user and to display it. The output device can be designed, for example, as a display. The dispenser may be disposed on the housing opposite the front mount. The output device can, for example, reproduce the images or the videos of the visual assembly and / or the detection signal of the infrared assembly.The input device is designed to receive input from the user and to forward it at least to the control unit. The input device can have at least one operating element. The operating element can be designed, for example, to switch the thermal imaging camera on and / or off, to take a photograph of a scene, to set an operating mode or to activate another function of the thermal imaging camera.The cooling element is configured to cool at least the infrared assembly. In this case, the cooling element can be arranged opposite the front holder, in particular substantially within the housing. The cooling element may be arranged axially along the optical axis between the front holder and the dispenser. The cooler element is made of a thermally conductive material. The cooling element absorbs heat from at least the visual assembly and the infrared assembly and dissipates it in order to reduce, in particular minimize, thermal interference influences.The locating device mechanically locates the visual assembly to the infrared assembly. By way of example, the arrangement device can be designed as a type of frame, shell or pot. The locating device may be formed about the optical axis. In addition, the arrangement device is configured to thermally isolate the infrared assembly from the visual assembly. Furthermore, the arrangement device is designed to reduce interference radiation to the infrared assembly. The arrangement device is substantially made of a non-thermally conductive, i.e. thermally insulating, material. In this case, the arrangement device can thermally decouple the cooling element from the front holder.The energy supply unit is provided for battery operation by means of batteries, for battery operation by means of batteries, in particular hand-held power tool battery packs, and / or for grid operation. The energy supply unit is provided at least for supplying energy to the thermal imaging camera. In a preferred embodiment, the energy supply is designed for battery operation. In the context of the present invention, a "hand-held power tool battery pack" is intended to mean a connection of at least one battery cell and one battery pack housing. The handheld power tool rechargeable battery pack is advantageously designed for supplying energy to commercially available battery-operated handheld power tools. The at least one battery cell can be designed, for example, as a Lilon battery cell having a rated voltage of 3.6 V. By way of example, the handheld power tool battery pack can comprise up to ten battery cells, wherein a different number of battery cells is also conceivable. An embodiment as a battery-operated hand-held power tool and also the operation as a mains-operated hand-held power tool are sufficiently known to the person skilled in the art, for which reason the details of the energy supply will not be discussed here.In one embodiment of the thermal imaging camera, the arrangement device is arranged, in particular axially along the optical axis, between the front holder and the cooling element. At least the infrared assembly abuts the cooling element by means of the infrared board. The cooling element has a receptacle for the infrared assembly. The receptacle of the cooling element is designed to at least partially receive the infrared assembly. The arrangement device abuts at least partially and / or at least in sections on the cooling element and / or the front holder. The cooling element can at least partially engage in the arrangement device.In one embodiment of the thermal imaging camera, the infrared assembly and the visual assembly are arranged overlapping one another by means of the arrangement device. In this case, the infrared assembly and the visual assembly may axially overlap relative to the optical axis. For example, at least the infrared optics and the visual camera board overlap. The infrared assembly and the visual assembly can be arranged spaced apart from one another radially, in particular with respect to the optical axis.In one embodiment of the thermal imaging camera, the arrangement device has at least one receptacle for the infrared assembly, which receptacle at least partially surrounds the infrared assembly. The receptacle of the arrangement device for the infrared assembly can be designed, for example, as an opening or a recess. In this case, the receptacle of the arrangement device for the infrared assembly can be formed, for example, in a round, elliptical or polygonal manner, such as triangular or quadrangular. The receptacle of the arrangement device for the infrared assembly can at least partially surround the infrared housing. The infrared housing may abut or be spaced apart from the receptacle of the assembly device for the infrared assembly. The receptacle can have at least two webs which are arranged opposite one another. By way of example, four mutually abutting webs can be provided, which abut against the infrared housing. By way of example, the receptacle of the arrangement device for the infrared assembly substantially completely surrounds the infrared housing. The receptacle of the infrared assembly locating device may secure the infrared housing relative to the visual assembly.In one embodiment of the thermal imaging camera, the arrangement device has a receptacle for the visual assembly, which receptacle at least partially surrounds the visual assembly. The receptacle of the visual assembly locating device may at least partially receive the visual assembly. In this case, the visual assembly can only partially abut on the receptacle of the arrangement device for the visual assembly. The recording of the arrangement device for the visual assembly can at least partially encompass the circuit board for the visual camera. The receptacle of the arrangement device for the infrared assembly and the receptacle of the arrangement device for the visual assembly can be formed radially, in particular offset to the optical axis, on the arrangement device. Accordingly, the infrared assembly and the visual assembly may be arranged radially with respect to each other. The receptacle of the arrangement device for the visual assembly can be designed, for example, in the manner of a shell, a pot, a frame or a rack. The receptacle of the arrangement device for the visual assembly can have at least one abutment element which is arranged between the printed circuit board of the visual camera and at least partially abuts thereon. The contact element can be designed, for example, as webs.In one embodiment of the thermal imaging camera, the arrangement device has at least one shielding element which is designed to shield thermal radiation from the visual assembly from the infrared assembly. The shielding element can be connected to the arrangement device. The arranging device may form the shielding member. It is possible that the shielding element and the arrangement device are integral. The shielding member may extend axially along the optical axis. For example, the shielding element can be arranged here in the direction of the front holder and away from the infrared assembly. The shielding element can be designed, for example, in the manner of a web, a projection or an edge.In an embodiment of the thermal imaging camera, the front bracket comprises at least one insulating element configured to insulate the infrared assembly. The insulating member may be connected to the front bracket. It is possible for the front holder to form the insulating element so that they are integral. The isolation member may extend axially along the optical axis. The insulating element can extend in the direction of the infrared assembly. The insulating element can be designed, for example, in the manner of a web, a projection or an edge. The isolation element may prevent and / or reduce thermal radiation from the visual assembly toward the infrared assembly.In an embodiment of the thermal imaging camera, the shielding element abuts the insulating element. In a mounted state of the thermal imaging camera, the shielding member may abut on the insulating member. As a result, the shielding element and the insulating element can form a common web which substantially shields the infrared assembly from thermal radiation from the visual assembly.In one embodiment of the thermal imaging camera, the arrangement device has at least one arrangement element which is designed to arrange the front holder relative to the infrared assembly and / or the visual assembly. The arrangement device can be connected to the arrangement element. The arrangement device can form the arrangement element, so that these can be integral. The locating element aligns the front mount relative to the infrared assembly and / or the visual assembly such that openings in the front mount are axially aligned with the infrared assembly and / or the visual assembly, respectively. The arrangement element can be formed, for example, in the manner of a sleeve, cylindrical, web or in the manner of a screw dome. The locating element can engage in the front holder. The front holder can have a receptacle for this purpose, wherein the arrangement element can engage in the receptacle at least in a positively locking manner. A plurality of locating elements may be provided, such as two, three, four or more than four.In one embodiment of the thermal imaging camera, the cooling element has at least one alignment element and the arrangement device comprises at least one receptacle for the alignment element, wherein the alignment element is configured to align the arrangement device relative to the cooling element by means of the receptacle for the alignment element. The alignment element may be connected to the cooling element. The cooling element can form the alignment element, so that these are integral. The alignment element can engage in the receptacle of the arrangement device for the alignment element at least in a positively locking manner. The alignment element can be designed, for example, as a pin, pin, bolt, projection or web. A plurality of alignment elements can be provided, for example, two, three or more than three.Brief Description of the DrawingsThe invention is explained below with reference to a preferred embodiment. The drawings show: FIG. 1a is a schematic front view of a thermal imaging camera according to the invention; FIG. 1 b is a schematic rear view of a thermal imaging camera according to the invention; FIG. 2 is a fragmentary longitudinal sectional view of the thermal camera; FIG. 3 is an exploded view of a front bracket, an assembly device, a cooling element, an infrared assembly, and a visual assembly; FIG. 4a is a perspective front view of the arrangement device; FIG. 4 b shows a perspective rear view of the arrangement device;DESCRIPTION OF THE EMBODIMENTFIG. 1 ashows a schematic front view of a thermal imaging camera 100 according to the invention, wherein FIG. 1 bshows a schematic rear view of the thermal imaging camera 100. The thermal imaging camera 100 is formed here as a hand-held thermal imaging camera 100 by way of example. The thermal imaging camera 100 comprises a housing 110, a front holder 120, an infrared assembly 140 for detecting infrared radiation, a visual assembly 160 for receiving visual radiation and at least one cooling element at least 180 for cooling the infrared assembly 140, see also FIGS. 2 to 4. The thermal imaging camera 100 comprises an arrangement device 200, see also FIGS. 2 to 4, The arrangement device 200 is provided for arranging the visual assembly 160 to the infrared assembly 140.The housing 110 is formed as a shell housing with two half shells. The housing 110 includes a handle 112. The fron holder 120, the cooling element 180 and the arrangement device 200 are arranged substantially within the housing 110, see also FIGS. 2 and 3. the housing 110 accommodates a control unit 300, an input device 310, an output device 320, an energy supply unit 330 and an evaluation unit, not shown. The input device 310 comprises, for example, five operating elements 311, 312, 313, 314, 315, see also FIG. 1 b. The five control elements 311, 312, 313, 314, 315 are provided to operate the thermal imaging camera 100. A first operating element 311 is designed as a trigger, by means of which images can be recorded. A second operating element 312 is designed as a button, by means of which a user can switch the thermal imaging camera 100 on and off and call up a menu selection. A third operating element 313 and a fourth operating element 314 are designed to switch through between operating modes within the menu selection. A fifth operating element 315 is designed to confirm and activate a desired operating mode. Assignments of the operating elements 311, 312, 313, 314, 315 are mentioned here by way of example, and therefore it is clear to the person skilled in the art that the assignments can also be different. The output device 320 is provided to display two-dimensional temperature information, in particular a thermal image, provide information to the user and display it. The output device 320 is formed, for example, as a display 322, see FIG. 1 b. The dispenser 320 is disposed on the housing 110 opposite the front bracket 120. The energy supply unit 330 is designed for battery operation by means of a handheld power tool battery pack 332. The energy supply unit 330 is designed at least for supplying energy to the thermal imaging camera 100. The housing comprises an inlet opening 111. The visual radiation and / or infrared radiation can enter the inlet opening 111. The infrared assembly 140 defines an optical axis 102 that is a main incident direction of the infrared radiation and / or the visual radiation through the entrance aperture 111.FIG. 2 shows a section 400 of a longitudinal section of the thermal imaging camera 100. The cooling element 180 is configured to cool at least the infrared assembly 140, being made of a thermally conductive material. The cooling element 180 is arranged opposite to the front bracket 120. The cooling element 180 is disposed axially along the optical axis 102 between the front mount 120 and the dispenser 300. The housing 110 receives the front bracket 120. The front mount 120 includes an opening 121 for the infrared assembly and an opening 122 for the visual assembly 160. The front bracket 120 includes a receptacle 123 for the visual assembly 160. The receptacle 123 for the visual assembly 160 at least partially surrounds the visual assembly 160. The visual assembly 160 abuts the receptacle 123 of the front bracket 120 by means of an end face 161. The visual assembly 160 abuts the front bracket 120 via a visual optic 162. The visual assembly 160 includes a visual camera 164 for capturing at least one image and / or video in the visual spectrum of the radiation, the optics 162 for the visual camera 164, and a board 166 for the visual camera 164. The visual assembly 160, in particular the circuit board 166 for the visual camera 164, is connected signal-wise to the control unit 300 by means of a cable 168.The infrared assembly 140 includes an infrared housing 142, an infrared sensor 144, an infrared optics 146, an infrared board 148, and a patch cable 150. The infrared housing 142 locates the infrared optics 146 relative to the infrared sensor 144. The infrared sensor 144 is formed as an infrared detector array. For measuring infrared radiation, thermal imaging camera 100 includes infrared module 140 and the evaluation unit. The infrared assembly 140 is connected to the evaluation unit by means of the connecting cable 150, wherein the control unit 300 here has the evaluation unit. The infrared optics 146 collimates infrared radiation incident through the entrance aperture 111 and passes it to the infrared sensor 144. The infrared sensor 144 is arranged on the infrared board 148, wherein the infrared sensor 144 is arranged between the infrared board 148 and the infrared optics 146. The infrared board 148 is connected to the control unit 300 via the connection cable 150. The infrared assembly 140 engages at least partially in a recess 124 of the front bracket 120, wherein the infrared assembly 140 engages in the recess 124 by means of the infrared optics 146.The control unit 300 is connected signal-wise to the infrared assembly 140 by means of the connecting cable 150 and to the visual assembly 160 by means of the cable 168. The control unit 300 includes a main board 302 disposed opposite to the front bracket 120. The main board 302 is arranged, in particular axially with respect to the optical axis 102, between the front holder 120 and the output device 320. In addition, the main board 302 is arranged axially, in particular with respect to the optical axis 102, between the cooling element 180 and the output device 320.The locating device 200 is configured to mechanically locate the visual assembly 160 to the infrared assembly 140. The locating device 200 is exemplarily formed as a frame 210, see also FIGS. 3 to 4. the locating device 200 is arranged around the optical axis 102 and thermally isolates the infrared assembly 140 from the visual assembly 160. The locating device 200 thermally decouples the cooling element 180 from the front bracket 120. The locating device 200 is arranged axially along the optical axis 102 between the front bracket 120 and the cooling element 180. The infrared assembly 140 abuts the cooling element 180 via the infrared board 148. The cooling element 180 includes a receptacle 182 for the infrared assembly 140. The receptacle 182 of the cooling element 180 at least partially receives the infrared assembly 140. The arrangement device 200 abuts at least partially and / or at least in sections on the cooling element 180 and the front holder 120. In addition, the cooling element 180 engages at least partially in the arrangement device 200. The infrared assembly 140 and the visual assembly 160 are arranged overlapping with one another by means of the arrangement device 200, in particular axially along the optical axis 102. Here, at least the infrared optics 146 and the board 166 for the visual camera 164 overlap. The infrared assembly 140 and the visual assembly 160 are arranged spaced apart from one another radially, in particular with respect to the optical axis 102. The arrangement device 200 comprises a receptacle 220 for the infrared assembly 140. The receptacle 220 for the infrared assembly 140 engages around the infrared assembly 140 at least partially, in particular substantially completely. The receptacle 220 of the arrangement device 200 for the infrared assembly 140 is formed, for example, as a quadrangular opening 222, see also FIGS. 3 and 4. The receptacle 220 of the arrangement device 200 for the infrared assembly 140 is here spaced apart from the infrared assembly, so that there is a distance between the infrared housing 142 and the receptacle 220. The arrangement device 200 comprises a receptacle 230 for the visual assembly 160. The receptacle 230 of the arrangement device 200 for the visual assembly 160 engages around the visual assembly 160 at least partially and at least partially. The visual assembly 160 only partially abuts the receptacle 230 of the placement device 200 for the visual assembly 160. The receptacle 230 of the arrangement device 200 for the visual assembly 160 at least partially surrounds the circuit board 166 for the visual camera 164. The receptacle 220 of the arrangement device 200 for the infrared assembly 140 and the receptacle 230 of the arrangement device 200 for the visual assembly 160 are formed on the arrangement device 200 radially, in particular offset with respect to the optical axis 102. The receptacle 230 of the arrangement device 200 for the visual assembly 160 is shaped like a shell, for example.The arrangement device 200 comprises a shielding element 240. The shielding member 240 is provided to shield heat radiation from the visual assembly 160 from the infrared assembly 140. By way of example, the arrangement device 200 forms the shielding element, with the result that they are in one piece here. The shielding member 240 extends axially along the optical axis 102. The shielding member 240 extends toward the front bracket 120. The shielding element 240 is formed, for example, as a shielding web 242. The front bracket 120 includes an insulating member 126. The isolation element 126 is provided to isolate the infrared assembly 140. The front bracket 120 shapes the insulating member 126 to be integral. The isolation member 126 extends axially along the optical axis 102 toward the infrared assembly 140 and the cooling element 180. The insulating element 126 is formed as an insulating web, for example. The shielding member 240 abuts on the insulating member 126. The arrangement device 200 comprises at least one arrangement element 250. The locating member 250 is provided to locate the front bracket 120 relative to the infrared assembly 140 and the visual assembly 160. The locating device 200 shapes the locating element 250 so that they are integral. The locating element 250 aligns the front mount 120 relative to the infrared assembly 140 and the visual assembly 160 such that the opening 121 in the front mount 120 for the infrared assembly 140 and the opening 122 in the front mount 120 for the visual assembly 160 are aligned axially with the infrared assembly 140 and the visual assembly 160, respectively.The arrangement element 250 is formed, for example, in the manner of a screw dome 252, wherein four arrangement elements 250 are provided here. The locating member 250 engages the front bracket 120. The front holder 120 comprises a receptacle 130 for the arrangement element 250. The receptacle 130 for the arrangement element 250 receives the arrangement element 250 at least in a positively locking manner. By way of example, four receptacles 130 are formed for one of the arrangement elements 250 in each case. The cooling element 180 includes at least one alignment element 184. The arrangement device 200 comprises at least one receptacle 260 for the alignment element 184. The alignment element 186 is provided to align the arrangement device 200 relative to the cooling element 180 by means of the receptacle 260 for the alignment element 186. The cooling element 180 forms the alignment element 184 by way of example, so that these are integral. The alignment element 186 engages in the receptacle 260 of the arrangement device 200 for the alignment element 184 at least in a positively locking manner. The alignment element 184 is formed, for example, as an alignment pin 186. Here, two alignment pins 186 and two receptacles 260 are formed by way of example, see also FIGS. 3 and 4.FIG. 3 shows an exploded view of the front mount 120, the locating device 200, the cooling element 180, the infrared assembly 140, and the visual assembly 160. The front holder 120 comprises a further receptacle 132. The further receptacle 132 of the front holder 120 comprises an adhesive pad 134. The further receptacle 132 of the front bracket 120 is provided to receive an infrared window 152 for the infrared assembly 140 and a glass pane 170 for the visual assembly 160 via the adhesive pad 134. A seal 136 is bonded to the front bracket 120 to seal the housing 110 from a working environment.FIG. 4 ashows a perspective front view of the arrangement device 200, wherein FIG. 4 bshows a perspective rear view of the arrangement device 200.References included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedDE 10 2016 219 388 A1

[0002]

Claims

Thermal imaging camera (100) having a housing (110), having a front holder (120), having an infrared assembly (140) for detecting infrared radiation, having a visual assembly (160) for receiving visual radiation, wherein the infrared assembly (140) and the visual assembly (160) are arranged substantially within the housing (110), and having at least one cooling element (180) at least for cooling the infrared assembly (140), characterized byan arranging device (200) which is designed to arrange the visual assembly (160) to the infrared assembly (140).Thermal imaging camera (100) according to claim 1, characterized in that the arrangement device (200) is arranged between the front holder (120) and the cooling element (180).Thermal imaging camera (100) according to claim 1 or 2, characterized in that the infrared assembly (140) and the visual assembly (160) are arranged overlapping each other by means of the arrangement device (200).Thermal imaging camera (100) according to one of the preceding claims, characterized in that the arrangement device (200) has at least one receptacle (220) for the infrared assembly (140), which receptacle at least partially surrounds the infrared assembly (140).Thermal imaging camera (100) according to one of the preceding claims, characterized in that the arrangement device (200) has a receptacle (230) for the visual assembly (160), which receptacle at least partially surrounds the visual assembly (160).Thermal imaging camera (100) according to one of the preceding claims, characterized in that the arrangement device (200) has at least one shielding element (240) which is designed to shield thermal radiation from the visual assembly (160) from the infrared assembly (140).Thermal imaging camera (100) according to any one of the preceding claims, characterized in that the front support (120) comprises at least one insulating element (126) configured to insulate the infrared assembly (140).Thermal imaging camera (100) according to claims 6 and 7, characterized in that the shielding element (240) abuts the insulating element (126).Thermal imaging camera (100) according to one of the preceding claims, characterized in that the arrangement device (200) has at least one arrangement element (250) which is designed to arrange the front holder (120) relative to the infrared assembly (140) and / or the visual assembly (160).Thermal imaging camera (100) according to one of the preceding claims, characterized in that the cooling element (180) has at least one alignment element (184) and the arrangement device (200) comprises at least one receptacle (260) for the alignment element (184), wherein the alignment element (184) is designed to align the arrangement device (200) relative to the cooling element (180) by means of the receptacle (260) for the alignment element (184).

Citation Information

Patent Citations

  • Camera with heating element

    DE102013020894B3

  • Spherical camera and method for directing IR radiation

    DE112018002841T5

  • Sensor device for detecting movement of a heat-radiating object and electrical device comprising such a sensor device

    EP4130567A1

Cited By

  • thermal imaging camera

    DE102025104933A1

  • thermal imaging camera

    DE102025104944A1