RU219629U1 - DEVICE FOR PROTECTION OF SUPERVISION CAMERA WITH COOLING - Google Patents

Abstract

The utility model relates to the field of accessories, to surveillance devices, namely to housings for surveillance devices that provide protection from negative environmental factors. The device for protecting a surveillance camera with cooling comprises an inner housing in which the surveillance camera is located, an outer housing, a channel for spraying a cooling medium, and means for supplying a cooling medium to the channel. At the same time, the channel for spraying the cooling medium is provided with holes for spraying and is at least partially located in the space between the inner and outer housings. The means for supplying the cooling medium comprise inlets for the components of the cooling medium and at least one control unit for supplying the cooling medium into the channel. The device improves the cooling efficiency of the surveillance camera. 13 w.p. f-ly, 2 ill.

Description

The proposed utility model relates to the field of accessories, to surveillance devices, namely to housings for surveillance devices (photo cameras, video cameras) that protect these devices from negative environmental factors, in particular physical (mechanical), temperature influences.

The operating temperature of many electronic devices, in particular video and photo cameras, does not go beyond +50-60°C. The presence of a closed housing in which the camera is installed complicates the removal of heat generated during operation of the device, thereby increasing the temperature inside the housing. The transfer of thermal energy from the housing surface to the environment is limited both by the ambient temperature and by air movement. In a room with a relatively high temperature, heat removal through the walls of the housing is significantly difficult. To maintain the optimum operating temperature range, it is necessary to apply a cooling system to the chamber - directly cooling the device or indirectly through the cooling of the closed housing in which the chamber is placed. Devices and systems that solve these problems have been identified from the prior art.

Known technical solution according to the application of the European Union for invention No. 3951490 "Monitoring camera device (Surveillance camera device)" (IPC G03B15/00; G03B17/55; G03B17/56; H04N5/225; H05K7/20, MAINTECH CO LTD, Japan, application No. 2019065041 dated 03/28/2019, publication 02/09/2022). According to the description of the proposed technical solution, a surveillance camera device is proposed that can stably shoot in high temperature conditions. The invention is directed to use for monitoring another device in conditions of high ambient temperature. The surveillance camera consists of a housing containing the surveillance camera and a pipe for supplying cooled air to the housing, including a cylindrical housing section and a rear cover attached to the end of the housing section, and a pipe for supplying cooling air is attached to the rear cover. The housing additionally contains a heat-insulating coating.

The disadvantages of this technical solution are the lack of a temperature control system, the need to clean the case supplied inside, where the camera is installed, and the lack of cleaning of the supplied air can lead to pollution and subsequent failure of the surveillance camera itself. In addition, an additional disadvantage of the solution is the need to supply compressed air to the cooling line, which requires a compressor or a compressed air line, leading to a more complex design, an increase in the likelihood of breakdown and an increase in the cost of the device.

The technical solution according to the application of South Korea for the invention No. 20110130688 "Apparatus For Protecting Camera (Device for protecting the camera)" (MPK H04N5 / 225; H04N7 / 18, Hyundai Steel Co, Republic of Korea, application No. 20100050150 dated May 28) has a similar purpose. .2010, publication 06.12.2011). A device is provided to protect the chamber from wear due to operation in high temperature mode. In one of the parts of the body is a camera. The viewing hole for the camera is made in one of the end parts of the housing. The glass plate is installed in the hole. The atomizing part removes foreign substances from the glass plate by spraying air onto it. In addition to the cleaning system, the device is also equipped with a chamber cooling system installed inside the housing and consisting of a cooled air supply section, a heat exchange section and an exhaust section. The supply section is supplied with air from an air supply source, such as an air pump, and then enters the heat exchange section. The heat exchange section cools the chamber by exchanging the air supplied through the supply section with the air inside the housing. The heat exchange section includes a cooling pipe made in the form of a spiral inside the body part around the chamber.

The disadvantages of the above technical solution include the need to supply compressed air from an air compressor, which cannot be used in explosive facilities, as well as the introduction of a cooling medium directly into the internal volume of the housing. Additionally, the disadvantages of the device can be recognized as the complexity of the design, due to the dependence of the efficiency of the cooling system on the dimensions of the casing, the diameter and the number of turns of the spiral tube for cooling.

The above solutions involve the supply of a cooling medium inside the housing in which the camera is installed, however, in some cases, for example, when protecting the camera from external influences, such as explosion, fire, dust, it is required to isolate the camera from the external environment as much as possible, limiting the choice of cooling methods.

In this regard, the closest solution is the decision on the application of South Korea for invention No. 101050766 “A camera housing for inner observation of the furnace (Camera housing for monitoring the furnace from the inside)” (IPC H04N5/2252 F01P11/0276 H04N7/18, Samsung Image Security Co Ltd and others, Republic of Korea, application No. 20110029322 dated 03/31/2011, publication 07/20/2011). According to the description of the technical solution, the housing for the surveillance camera inside the pipe is designed to prevent damage to the camera due to high temperature. The outer pipe has inlet and outlet pipes for cooling water. The inner tube is inserted into the outer tube, with the front end of the inner tube protruding from the outer tube. In the space between the pipes, a circuit for the movement of cooling water is formed. The device is equipped with an internal temperature sensor.

The disadvantages of the invention are the need to ensure the tightness of the cooling circuit due to the use of a liquid heat carrier, in addition, it is necessary to ensure a constant supply of water for circulation in the circuit.

The systems and devices disclosed in the prior art do not provide a solution to a number of technical problems, in particular, the creation of a device for cooling the surveillance camera, which allows you to effectively cool the surveillance cameras by cooling the housing in which the camera is located, reducing the requirements for the quality of the cooling medium, the consumption of fluid for processing through the use of a combined cooling medium, as well as being able to be used in areas where there are special requirements, incl. for explosion safety.

The technical problem is solved as follows. The present utility model proposes a device for protecting a surveillance camera with cooling, comprising an inner housing in which the surveillance camera is located, an outer housing, a channel for spraying a cooling medium and means for supplying a cooling medium to the channel, characterized in that the channel for spraying a cooling medium is provided with holes for spraying and at least partially located in the space between the inner and outer housing, and the means for supplying a cooling medium contain inlets for the components of the cooling medium and at least one control unit for supplying a cooling medium to the channel.

Features common with analogue are the presence of an inner housing, which houses the surveillance camera, an outer housing, a channel for spraying a coolant and means for supplying a coolant to the channel.

The features that distinguish the device from analogues are the supply of the channel for spraying the coolant with holes for spraying and at least partial placement in the space between the inner and outer housings, the supply of means for supplying the coolant with inlets for the components of the cooling medium and the presence of at least , one control unit for the supply of coolant to the channel.

In the first particular case, the device is characterized by the fact that the cooling medium consists of air or liquid or their composition.

In the second particular case, the device is additionally characterized by the fact that the coolant supply control unit contains means for mixing liquid and air. In the development of this particular case, it is specified that the means for mixing liquid and air are made in the form of ejector nozzles.

In the third particular case, the device is characterized in that the coolant supply control unit contains at least one thermostat. In clarifying this particular case, it is indicated that the coolant control unit contains a pair of thermostats, one of which has a higher setpoint temperature.

In the fourth particular case, the device is characterized by the fact that the holes in the part of the channel are made in the form of a slot.

In the fifth particular case, the device is additionally characterized by the fact that the outer casing of the device is made open.

In the sixth particular case, the device is characterized by the fact that the outer case is provided with a heat shield on the side of the inner case. In the development of this particular case, the heat shield can be made partially covering the inner casing.

In the seventh particular case, the device is characterized by the fact that the outer case is an open case. To clarify this particular case, the outer case is made partially covering the inner case.

In the eighth particular case, the device is characterized by the fact that the outer casing is made closed. To clarify this particular case, the outer casing is provided with holes for removing the components of the cooling medium from the inter-casing space.

The technical solution is a surveillance device with cooling in the form, directly, of a surveillance camera that forms an image through its optical system. The camera is placed in a housing, essentially isolated from the environment. The end end of the inner case must contain a translucent element to enable the camera installed in the inner case to perceive the surrounding reality. The camera's power supply and image output can be realized by means of an electric cable, PoE (Power over Ethernet) system or similar technologies. The camera is connected to the network through a cable gland, which, depending on the tasks, can be made explosion-proof. From the outside, the inner housing is completely or partially closed by the outer housing. The outer case can either repeat the shape of the inner case or differ from it. With partial overlap of the inner case, the outer case can be made in the form of a visor located above the upper part of the inner case. Otherwise, the outer housing may be in the form of a cylinder, provided with holes for the input/output of the cooling medium, as well as a translucent element on the end part, into which the camera lens is directed. Placement of the camera in the case allows to protect it from negative manifestations of the environment, in particular from thermal, baric, other physical or chemical effects, which can lead to loss of camera performance. The supply of the device with an outer case allows to provide better protection against external influences, to protect the channel for supplying a cooling medium, in particular, to improve thermoregulation due to the provision of a thermal screen, and also to provide protection from sunlight for images received from a camera installed in the inner case.

The device contains a channel for spraying a cooling medium, mainly water with air. Although the cooling of the inner case can be carried out solely due to the air flow. The holes made in the channel allow the cooling medium to flow from the channel into the space between the outer and inner housing in which it is located. This ensures that the outer surface of the inner case is exposed to the cooling medium, ensuring its cooling.

Placing the channel for spraying the cooling medium in the space between the inner and outer housing allows spraying directly near the surface of the inner housing. Considering the possible thermal insulation of the outer casing, this ensures high cooling efficiency.

Providing the device with means for supplying a cooling medium allows you to set the composition of the cooling medium, the time and temperature of the operation of the supply of the cooling medium to the inner case. The cooling medium, according to the present utility model, can be single or multi-component, in particular, the cooling medium can consist of air, as well as air with water particles (aerosol) dispersed in it. Such a dispersed system makes it possible to effectively remove heat from the inner case, as well as to cool the air in the inter-case space.

The mixing of liquid with air is carried out by means of supplying a cooling medium. The liquid with air enters the mixing chamber through different channels, where the liquid is sprayed in the air stream by means of ejecting means, forming a dispersed system. Atomization of the liquid may be provided, for example, by ejector nozzles, one or more cascaded. Cascaded ejecting nozzles provide uniform and stable irrigation of the dispersed liquid by a cone-shaped torch of the air flow passing through them and complete uniform dense filling of the channel, which is located further in the nozzle irrigation cone, with the dispersed liquid. The dispersed liquid, entrained by the air flow, then enters the channel and through the slotted holes in the channel enters the inter-case space, where it mixes with the air present there, providing its cooling, circulation, and also cooling the surface of the inner case.

The present invention is illustrated by the following figures:

Fig. 1 is a general view of a device for protecting a surveillance camera with cooling;

Fig. 2 is a perspective view of an alternate implementation of a cooling camera protection device.

The figures show the following positions:

1 - inner case;

2 - outer case;

3 - channel for spraying the cooling medium;

4 - input for the first component of the cooling medium;

5 - input for the second component of the cooling medium;

6 - ejector;

7 - thermostat;

8 - thermostat with increased setpoint temperature.

To understand the principles of operation and features of various implementations of the utility model, the following is a description of the figures of the technical solution. Although the text of the description explains in detail the preferred embodiments of the technical solution, it should be understood that other embodiments of the invention are also possible. Accordingly, there is no need to limit the scope of legal protection of a technical solution solely to the presented implementations and lists of subsystems, assemblies and components. The invention can be implemented in other ways. However, when describing the preferred technical solutions, for a clear understanding of the basic principles of the invention by a specialist, it is necessary to clarify the terms used in the description.

It should be noted that the components and parts of the device used in the singular in the description and the formula also represent plural forms, unless the opposite is expressly stated. For example, an indication of a component element of the device also means an indication of the totality (set) of such elements.

Also, when describing the preferred embodiments, specific terms are used to ensure clarity of understanding. The term is intended to be used in the broadest sense in which it can be construed by those skilled in the art and to include all technical equivalents used in the same manner and for the same purpose. So, in particular, the term "protection device" means a technical solution designed to prevent the influence of negative, primarily physical impacts on the surveillance camera (surveillance device) located in the inner case of the device in order to ensure that the latter receives and transmits an image of a terrain or premises, to which it is directed. The term "with cooling" means the supply of the device with parts (assemblies) during the operation of which the air temperature in the space between the inner and outer cases changes, as well as the surface of the inner case due to heat exchange caused by the supply of a cooling medium to the inter-case space. The inner case is understood as an essentially closed shell, which has an internal space sufficient to accommodate a surveillance camera, and also provides the possibility of obtaining an image of the surrounding reality placed in it by a camera through an element that is transparent, at least for visible radiation, placed, preferably, on one of its end surfaces. The inner case may contain openings for power and/or signal cables. Although the inner case may have a different shape, it is advisable to give it a shape corresponding to the shape of the surveillance camera, subject to optimal heat dissipation to the environment. The term atomization is understood to mean the dispersion of the substance(s) that make up the cooling medium through the holes in the channel. The channel for spraying the cooling medium is mainly called a tubular body, with the possibility of passing through it the cooling medium and provided with holes for spraying the cooling medium into the intervessel space. One of the end surfaces of the channel can be deaf. Under the means for supplying a cooling medium to the channel is meant a part of the device that supplies the cooling medium to the channel inlet. The said cooling medium is directly formed by the means for supplying the cooling medium, and its entry into the channel is also regulated. These means can also regulate the composition of the cooling medium, the proportion of its components, the temperature of the supplied cooling medium. The phrase partially placed is understood as the location of any section of the channel for spraying the cooling medium in the inter-case space between the inner and outer cases. At the same time, it is preferable to make holes for spraying the coolant in the section of the channel located in the specified inter-case space. The inlet for the coolant component is understood to be the presence, preferably, of an opening through which the coolant component flows from the source of the coolant component, eg reservoir, atmosphere, reservoir, into the means for supplying the coolant and further into the channel. A cooling medium component is understood to mean a substance in a gaseous or liquid state of aggregation, by itself or when mixed with another component, forming a cooling medium. The control unit is understood as a set of software and hardware that allows you to control the flow of the cooling medium into the channel, including the flow rate and temperature. Air is understood as a substance or mixture of substances in a gaseous state of aggregation, similar in composition to atmospheric air. A liquid is understood to mean a substance in a liquid state of aggregation, for example, water, coolants with a low boiling point, for example, containing ammonia, freons and similar substances. The term open housing is understood as a housing that partially covers the surface of the inner housing. Under the inter-hull space is understood the area bounded by the inner and outer hulls.

The words "comprising", "comprising", "including" mean that at least the specified component, element, part or step of the method is present in the device, but does not exclude the presence of other components, materials, parts, even if such component, material, part, performs the same function as specified.

The materials from which the various elements of the present invention are made, indicated below in the description of examples of a specific implementation of the device, are typical, but not mandatory for use. The materials indicated in the present examples of execution can be replaced by numerous analogues that perform the same function as the material examples given in the description.

Let's take a look at the attached figures. On FIG. 1 shows a device for protecting a surveillance camera. The device consists of a cylindrical metal inner case 1 in which a video camera with a standard operating temperature range is installed: from 0°С to +60°С. The inner casing has at least one opening for the power/signal cable. The hole can be made in the form of an explosion-proof cable entry. The inner case is partially enclosed in an outer case 2 of an open type, containing, in this case, in the form of a protective visor with a sun-protection area above the end surface of the inner case, containing a translucent insert to enable the operation of the surveillance camera, on the inner surface of which a thermal screen is placed. In the space between the outer and inner casings there is a perforated part of the channel 3 for supplying a cooling medium. The cooling medium is supplied through the tube to the perforated section. The cooling medium is formed either from the air entering the inlet 4, or from a suspension of water in the air, which enters the inlet 5, and mixes with the air entering the inlet 4 in the ejector 6. Depending on the ambient temperature, thermostats 7 and 8. Thermostats 7 and 8 are set to different temperatures: if only the incoming air is not enough to cool the inner casing, water is mixed in. To do this, thermostat 8 has a higher setpoint temperature than thermostat 7.

An alternative utility model shown in FIG. 2 provides for making the outer housing 2 closed, similar to the inner housing, which, at the same time, has proportionately large dimensions. The cable entry is made at the location of the entry of the inner case. To remove excess cooling medium from the inter-casing space, holes are made in the outer casing, which can be in the form of branch pipes. Also, on the lower part of the surface of the outer casing 2, a through perforation can be made, which makes it possible to remove excess cooling medium, primarily liquid, from the inter-casing space.

The embodiments of the present utility model are not limited to the above specific examples. Other forms of implementation of the technical solution may be proposed, without departing from the meaning of the utility model.

The exemplary embodiments disclosed above are provided to show the industrial applicability of the device and to give an overall impression of the device. The scope of legal protection of a technical solution is determined by the formula of the utility model, and not by the description provided.

Claims (14)

1. A device for protecting a surveillance camera with cooling, comprising an inner housing configured to accommodate a surveillance camera, an outer housing, a channel for spraying a cooling medium and means for supplying a cooling medium to the channel, characterized in that the channel for spraying a cooling medium is provided with holes for spraying and at least partially located in the space between the inner and outer casing, and the means for supplying a cooling medium contain inlets for the components of the cooling medium and at least one control unit for supplying a cooling medium to the channel. 2. The device according to claim 1, further characterized in that the cooling medium consists of air or liquid or a composition thereof. 3. The device according to claim 1, further characterized in that the coolant control unit contains means for mixing liquid and air. 4. The device according to claim 3, additionally characterized in that the means for mixing liquid and air are made in the form of ejector nozzles. 5. The device according to claim. 1, further characterized in that the control unit for supplying a cooling medium contains at least one thermostat. 6. The apparatus of claim 5, further characterized in that the coolant control unit comprises a pair of thermostats, one of which has a higher setpoint temperature. 7. The device according to claim. 1, additionally characterized in that the holes in the part of the channel are made in the form of a slot. 8. The device according to claim. 1, additionally characterized in that the outer casing is made open. 9. The device according to claim. 1, additionally characterized in that the outer casing is provided with a heat shield on the side of the inner casing. 10. The device according to claim 9, additionally characterized in that the heat shield is made partially covering the inner casing. 11. The apparatus of claim 1, further characterized in that the outer housing is an open type housing. 12. The device according to claim 11, further characterized in that the outer housing is made partially covering the inner housing. 13. The device according to claim. 1, additionally characterized in that the outer casing is made closed. 14. The device according to claim 13, additionally characterized in that the outer casing is provided with holes for removing the components of the cooling medium from the inter-casing space.

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