CN220732890U - Condensing camera structure - Google Patents

Abstract

The utility model relates to an image pickup apparatus, in particular to a condensing type camera structure. The camera structure comprises a closed shell, a first condenser and a second condenser, wherein the first condenser and the second condenser are respectively fixed on two opposite wall bodies of the shell, and the first condenser and the second condenser are respectively provided with an external radiating surface exposed outside the shell; the first condenser comprises a first refrigeration piece for generating a first temperature, and the first refrigeration piece faces to the inside of the shell; the second condenser comprises a second refrigerating sheet for generating a second temperature, and the second refrigerating sheet faces the inside of the shell; the temperature difference between the first temperature and the second temperature is not less than 3 ℃. The condenser can help to reduce the temperature inside the shell, an air outlet is not required to be arranged for cooling the condenser, and the shell can keep the structure airtight; the two condensers generate different temperatures, and the temperature difference can promote the heat flow in the shell, so that the temperature between all electronic elements in the shell can be more uniform.

Description

Condensing camera structure

Technical Field

The present utility model relates to an image pickup apparatus, and more particularly, to a condensing camera structure.

Background

The video camera is video input equipment and is widely applied to video conference, remote medical treatment, real-time monitoring and other aspects. A common camera may use a fan to exhaust air to create an air flow to cool the interior of the camera. Some cameras are special in use, such as scenes with larger dust, and only can be used for a closed camera structure. When the outside air temperature is extremely increased, the temperature inside the closed camera structure is also increased rapidly, and the heat flow inside the closed structure is small, so that the condition that the inside temperature is higher than the outside temperature is likely to occur. The camera structure is to be developed to meet the requirements of cooling the inside of the structure and increasing the heat flow in the structure while keeping the structure airtight.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide a condensing camera structure which can meet the requirements of cooling and increasing the heat flow in the structure while keeping the structure airtight.

In order to achieve the above object, the present utility model provides a condensation camera structure, which comprises a closed housing, a first condenser and a second condenser, wherein the first condenser and the second condenser are respectively fixed on two opposite wall bodies of the housing, and the first condenser and the second condenser are respectively provided with an external heat dissipation surface exposed outside the housing; the first condenser comprises a first refrigeration piece for generating a first temperature, and the first refrigeration piece faces to the inside of the shell; the second condenser comprises a second refrigerating sheet for generating a second temperature, and the second refrigerating sheet faces the inside of the shell; the temperature difference between the first temperature and the second temperature is not less than 3 ℃.

Compared with the prior art, the utility model has the beneficial effects that: two condensers are respectively arranged on two opposite wall bodies of the shell, the condensers can help to reduce the temperature inside the shell, an air outlet is not required to be arranged for cooling the condensers, and the shell can keep the structure airtight; the two condensers generate different temperatures, the temperature difference can promote the heat flow in the shell, so that the temperature between electronic elements in the shell can be more uniform, the overhigh temperature of a certain part or part is avoided, and the continuous working stability of the product is maintained.

The foregoing description is only an overview of the present utility model, and is intended to be more clearly understood as being carried out in accordance with the following description of the preferred embodiments, as well as other objects, features and advantages of the present utility model.

Drawings

Fig. 1 is an assembled perspective view of the camera structure of the present utility model.

Fig. 2 and 3 are exploded views of the camera structure of the present utility model.

Fig. 4 is a cross-sectional view of the camera structure of the present utility model.

Fig. 5 is a system block diagram of the camera architecture of the present utility model.

Fig. 6 and 7 are schematic connection diagrams of the first refrigeration piece, the second refrigeration piece, the polarity switching circuit and the main control chip.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The embodiment of the utility model relates to a condensing camera structure, the specific structure of which is shown in fig. 1-4, and the system block diagram of which is shown in fig. 5.

As shown in fig. 1, the camera structure includes a closed housing 30, a first condenser 10 and a second condenser 20, the first condenser 10 and the second condenser 20 being fixed to opposite side walls of the housing 30, respectively. As shown in fig. 2 and 3, the first condenser 10 includes a first cooling plate 11 for generating a first temperature, the first cooling plate 11 faces the inside of the housing 30, and the first condenser 10 is provided with an external heat dissipating surface 101 exposed outside the housing 30. When the inward side of the first cooling fin 11 is cooling, the heat generated by the first cooling fin 11 is dissipated from the outer heat dissipation surface 101. Similarly, the second condenser 20 includes a second cooling plate 21 for generating a second temperature, the second cooling plate 21 faces the inside of the housing 30, and the second condenser 20 is also provided with an external heat dissipating surface 201 exposed outside the housing 30. When the inward side of the second cooling plate 21 is cooling, the heat generated by the second cooling plate 21 is dissipated from the outer cooling surface 201. In an embodiment, the temperature difference between the first temperature generated by the first cooling plate 11 and the second temperature generated by the second cooling plate 21 is not less than 3 ℃, and the temperature difference is more preferably 5 ℃ to generate enough heat flow.

In implementation, the first refrigerating piece 11 and the second refrigerating piece 21 are both TEC semiconductor refrigerating pieces, one side of the refrigerating piece is cooled, the other side is warmed, and the cooling surface and the warming surface of the refrigerating piece can be switched only by switching the positive and negative of the wiring. When the ambient temperature outside the camera structure is low (for example, the ambient temperature reaches zero), the connection polarities of the first refrigeration piece 11 and the second refrigeration piece 21 can be switched by the polarity switching circuit 42 (fig. 5), so that the first refrigeration piece 11 and the second refrigeration piece 21 heat up the interior of the shell 30, and the interior of the shell 30 is kept in a proper working temperature range.

The camera structure is provided with the first condenser 10 and the second condenser 20 on two opposite wall bodies of the shell 30 respectively, the first condenser 10 and the second condenser 20 can help to reduce the temperature inside the shell 30, an air outlet is not required to be arranged for condensation and cooling, and the shell 30 keeps the structure airtight. The first condenser 10 and the second condenser 20 generate different temperatures, the temperature difference can promote the heat flow in the shell 30, so that the temperature among various electronic elements in the shell 30 can be more uniform, the overhigh temperature of a certain part or part is avoided, and the continuous working stability of the product is maintained.

In some embodiments, as shown in fig. 2, the first condenser 10 further includes a first conductive base 12, and the first cooling fin 11 is fixed on a side of the first conductive base 12 facing the inside of the housing 30. The surface of the first conductive base 12 facing the inside of the housing 30 is provided with inner fins 122, and the first cooling fin 11 is disposed between the inner fins 122. As shown in fig. 3, the outer heat dissipation surface 101 of the first conductive base 12 is provided with outer fins 121. In production, the first conductive base 12 is fixed to the wall of the housing 30 by insert molding. Insert molding is a conventional injection molding technique, and can form a reliable sealing connection between the first condenser 10 and the wall of the housing 30, and a relatively simple structure can obtain good sealing performance.

In some embodiments, as shown in fig. 3, the second condenser 20 further includes a second conductive base 22, and the second cooling fin 21 is fixed on a side of the second conductive base 22 facing the inside of the case 30. The surface of the second conductive base 22 facing the inside of the housing 30 is provided with inner fins 222, and the second cooling fin 21 is disposed between the inner fins 222. As shown in fig. 2, the outer heat dissipating surface 201 of the second conductive base 22 is provided with outer fins 221. During manufacture, the second conductive base 22 is fixed on the wall of the casing 30 by insert molding, and the insert molding can form reliable sealing connection between the second condenser 20 and the wall of the casing 30, so that good sealing performance is obtained by a relatively simple structure.

In some embodiments, as shown in fig. 3, a main control circuit board 40 is further disposed in the housing 30, and a main control chip 41 (fig. 5) is disposed in the main control circuit board 40. As shown in fig. 5, the main control chip 41 is electrically connected to the first cooling sheet 11 and the second cooling sheet 21 through the polarity switching circuit 42, respectively. The model of the main control chip 41 is STM32F103. The main control chip 41 may control cooling or heating of the first cooling sheet 11 and the second cooling sheet 21 through the polarity switching circuit 42. The two polarity switching circuits 42 may employ double pole double throw relays 42' (fig. 6 and 7). When the external temperature is too high, and the internal temperature of the casing 30 is higher than the normal working temperature interval, the main control chip 41 outputs a low level, as shown in fig. 6, the switch of the double pole double throw relay 42' is in a default state, and the first refrigeration piece 11 and the second refrigeration piece 21 cool and refrigerate towards the surface inside the casing 30 (fig. 3). When the external temperature is too low and the internal temperature is lower than the normal working temperature interval, the main control chip 41 outputs a high level, the switch position of the double-pole double-throw relay 42' is changed into as shown in fig. 7, the polarities of the first refrigeration piece 11 and the second refrigeration piece 21 are reversely connected, and the surfaces of the first refrigeration piece 11 and the second refrigeration piece 21 facing the inside of the shell 30 (fig. 3) are heated to warm.

In some embodiments, as shown in fig. 2, a first temperature sensor 13 is disposed on a surface of the first cooling plate 11 to monitor a surface temperature of the first cooling plate 11. As shown in fig. 3, a second temperature sensor 23 is disposed on the surface of the second cooling plate 21 to monitor the surface temperature of the second cooling plate 21. As shown in fig. 5, the main control chip 41 is electrically connected to the first temperature sensor 13 and the second temperature sensor 23, respectively. The main control chip 41 monitors the real-time surface temperature of the first refrigerating sheet 11 in real time through the first temperature sensor 13, and controls the surface temperature of the first refrigerating sheet 11 to rise or fall to a temperature set value. Similarly, the main control chip 41 monitors the real-time surface temperature of the second cooling sheet 21 in real time through the second temperature sensor 23, and controls the surface temperature of the second cooling sheet 21 to rise or fall to a temperature set value. There is a difference of at least 3 c, preferably 5 c, between the temperature set point for the first cooling fin 11 and the temperature set point for the second cooling fin 21. Whether the interior of the shell 30 is cooled or warmed, the temperature difference exists between the temperatures finally generated by the first cooling plate 11 and the second cooling plate 21, and the heat flow in the shell is promoted by utilizing the internal temperature difference, so that the temperature among all electronic elements in the shell can be more uniform.

In some embodiments, as shown in fig. 3, a camera module 50 is disposed inside the front end of the housing 30, a third temperature sensor 51 is disposed on one side of the camera module 50, and a fourth temperature sensor 52 is disposed on the other side of the camera module 50, and as shown in fig. 5, the main control chip 41 is electrically connected to the third temperature sensor 51 and the fourth temperature sensor 52, respectively. The main control chip 41 obtains real-time temperatures of two sides of the camera module 50 through the third temperature sensor 51 and the fourth temperature sensor 52. The third temperature sensor 51 is on the same side of the housing 30 as the first temperature sensor 13, and the fourth temperature sensor 52 is on the same side of the housing 30 as the second temperature sensor 23.

In some embodiments, as shown in fig. 4, a built-in battery 44 and a wireless receiving coil 45 are further provided in the housing 30, and the wireless receiving coil 45 is provided on an inner wall of an upper portion of the housing 30. As shown in fig. 5, the main control chip 41 is electrically connected to the built-in battery 44 and the wireless receiving coil 45, respectively. The built-in battery 44 may be a lithium battery, the built-in battery 44 may power the electronics of the overall camera structure, and the external wireless charger 90 may charge the built-in battery 44 by interfacing the wireless receiving coil 45. Further, as shown in fig. 3, a plurality of magnet blocks 451 are provided around the wireless receiving coil 45, and the magnetic attraction force of the magnet blocks 451 attracts the positioning iron blocks 91 (or the positioning magnet blocks 91) of the external charger 90, so that the wireless transmitting coil 92 of the external charger 90 and the wireless receiving coil 45 can be automatically positioned and mutually fixed by the magnetic attraction force. In practice, the manufacturer may choose to use only the wireless receiving coil 45 and the built-in battery 44, so that the power cord 80 behind the housing 30 may be omitted, and the holes in the housing 30 may be reduced. If the power line 80 needs to be penetrated into the rear of the housing 30 to supply power to the product, the position where the power line 80 is connected with the housing 30 needs to be coated with sealant to ensure tightness.

In some embodiments, as shown in fig. 3, a wireless module 43 is further disposed on the main control circuit board 40. As shown in fig. 5, the wireless module 43 is electrically connected to the main control chip 41. The wireless module 43 is mainly used for realizing wireless data transmission with an external control device or an acquisition device so as to reduce the use of data lines. The wireless module 43 may select a 4G module/5G module/WiFi module/bluetooth module/LoRa module/ZigBee module in the conventional art.

In some embodiments, as shown in fig. 3, the wall of the housing 30 is further provided with at least one-way exhaust valve 33, and the exhaust port of the one-way exhaust valve 33 is disposed outside the housing 30. The unidirectional exhaust valve 33 is used for exhausting high-pressure gas generated by high temperature inside the shell 30, so that the excessive high air pressure inside the shell 30 is avoided, and meanwhile, external liquid or gas cannot enter the shell 30 from the unidirectional exhaust valve 33, so that the inside of the shell 30 is sealed.

In addition, as shown in fig. 3, the case 30 is divided into a front case 31 and a rear case 32 fixedly connected to each other, and a sealing strip 320 is interposed between the rear case 32 and the front case 31 to secure sealability of the case 30. The lens 311 of the front case 31 may be fixed and sealed by applying a sealant. The camera module 50 is disposed in the front case 31, the built-in battery 44, the main control circuit board 40, and the wireless receiving coil 45 are disposed in the rear case 32, and the unidirectional exhaust valve 33 is fixed in a wall below the rear case 32.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms should not be understood as necessarily being directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. The condensing type camera structure is characterized by comprising a closed shell, a first condenser and a second condenser, wherein the first condenser and the second condenser are respectively fixed on two opposite wall bodies of the shell, and the first condenser and the second condenser are respectively provided with an external radiating surface exposed out of the shell; the first condenser comprises a first refrigeration piece for generating a first temperature, and the first refrigeration piece faces to the inside of the shell; the second condenser comprises a second refrigeration piece for generating a second temperature, and the second refrigeration piece faces the inside of the shell; the temperature difference between the first temperature and the second temperature is not less than 3 ℃.

2. The condensing camera structure of claim 1, wherein said first condenser further comprises a first conductive base, said first cooling fin is fixed to a side of said first conductive base facing the interior of said housing, said first conductive base is fixed to a wall of said housing by insert molding, an outer heat dissipation surface of said first conductive base is provided with outer fins, and a surface of said first conductive base facing the interior of said housing is provided with inner fins.

3. The condensing camera structure of claim 1, wherein said second condenser further comprises a second conductive base, said second cooling fin is fixed on a side of the second conductive base facing the interior of the housing, said second conductive base is fixed on a wall of the housing by insert molding, an outer heat dissipation surface of said second conductive base is provided with an outer fin, and a surface of said second conductive base facing the interior of the housing is provided with an inner fin.

4. The condensing camera structure of claim 1, wherein a main control circuit board is further disposed in the housing, a main control chip is disposed in the main control circuit board, and the main control chip is electrically connected to the first refrigeration piece and the second refrigeration piece through a polarity switching circuit, respectively.

5. The condensing camera structure according to claim 4, wherein a first temperature sensor is disposed on a surface of said first cooling plate, a second temperature sensor is disposed on a surface of said second cooling plate, and said main control chip is electrically connected to said first temperature sensor and said second temperature sensor, respectively.

6. The condensing camera structure according to claim 5, wherein a camera module is arranged in the front end of the housing, a third temperature sensor is arranged on one side of the camera module, a fourth temperature sensor is arranged on the other side of the camera module, and the main control chip is respectively and electrically connected with the third temperature sensor and the fourth temperature sensor; the third temperature sensor and the first temperature sensor are positioned on the same side of the shell, and the fourth temperature sensor and the second temperature sensor are positioned on the same side of the shell.

7. The condensing camera structure according to claim 4, wherein said housing further comprises a built-in battery and a wireless receiving coil, said main control chip is electrically connected to said built-in battery and said wireless receiving coil, respectively, said wireless receiving coil is disposed on an inner wall of said housing.

8. The condensing camera structure according to claim 7, wherein a plurality of magnet pieces are provided around the wireless receiving coil, and the magnetic attraction force of the magnet pieces attracts a positioning iron piece or a positioning magnet piece of an external charger.

9. The condensing camera structure of claim 4, wherein the main control circuit board is further provided with a wireless module, the wireless module is electrically connected with the main control chip, and the wireless module is a 4G module/5G module/WIFI module/bluetooth module/NFC module/LoRa module/ZigBee module.

10. The condensing camera structure of claim 1, wherein said housing wall is further provided with at least one-way exhaust valve for exhausting high pressure gas inside the housing, and said one-way exhaust valve exhaust port is provided outside the housing.