Industrial camera

Abstract

The utility model discloses an industrial camera which comprises a shell and a cover plate arranged on the shell, the shell and the cover plate are matched to define a sealing cavity, the shell is provided with an exhaust hole communicating the sealing cavity with the outside, and the industrial camera further comprises a pressure relief assembly arranged on the shell. When the pressure value of the pressure relief assembly in the sealing cavity reaches a set threshold value and is larger than the pressure of the environment where the industrial camera is located, gas in the sealing cavity is allowed to flow to the outside through the exhaust hole. According to the utility model, the problem of cracking at the adhesive dispensing joint of the cover plate and the shell can be prevented, so that the cover plate of the industrial camera can be made of an acrylic material with lower cost and can also be adhered by using common glue, and the cost is reduced on the premise of ensuring the attractiveness and the performance.

Description

Technical Field

[0001] The present application relates to the field of camera technology, and in particular to an industrial camera. Background Art

[0002] At present, the interior of industrial cameras with IP67 protection level on the market can be close to the ideal sealed cavity. The shell of such industrial cameras generally includes a shell and a cover plate arranged on the shell. A sealed cavity is formed between the shell and the cover plate, and various functional devices are installed in the sealed cavity. The cover plate is generally made of glass or acrylic. The cover plate and the shell are generally assembled together by glue point bonding. Such industrial cameras can be used in high temperature environments (such as in a machine room). When the temperature of the industrial camera rises due to the environment, its internal temperature can reach 70-80℃. Such industrial cameras can reach IP67 level, which is close to the ideal sealed cavity. The internal gas expands due to heat, and the pressure is higher than that of the outside world. The glue point between the cover plate and the shell may crack, which will cause the cover plate to warp or float at the crack of the glue point, affecting the appearance and fill light performance of the product. Especially for the cover plate of acrylic material with low strength, the large internal pressure may cause the cover plate of acrylic material to deform directly. In order to solve the above problem, the related technology generally selects high-strength glass for such industrial cameras, and uses glue with good bonding effect and non-deformation for bonding and assembly. The above solution can reduce the probability of the aforementioned glue cracking problem to a certain extent, but the aforementioned problem is still prone to occur in a high temperature operating environment or after a long period of use, and the cost of this solution is relatively high. Utility Model Content

[0003] The present application aims to solve one of the technical problems in the related art to a certain extent. To this end, the present application provides an industrial camera.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: an industrial camera, comprising a shell and a cover plate arranged on the shell, and the shell and the cover plate cooperate to form a sealed cavity, the shell is provided with an exhaust hole connecting the sealed cavity with the outside, the industrial camera also includes a pressure relief component arranged on the shell, and the pressure relief component allows the gas in the sealed cavity to flow to the outside through the exhaust hole when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

[0005] The application of this application has the following beneficial effects: by setting an exhaust hole and a pressure relief component on the shell, the exhaust hole can be closed or opened by the pressure relief component, so that the sealing of the sealed cavity can be maintained when the pressure value in the sealed cavity is small, and when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located, the pressure is released through the exhaust hole, so that the pressure value in the sealed cavity will not be too high. This can prevent the problem of cracking at the glue point connection between the cover plate and the shell, so that the cover plate of this type of industrial camera can be made of low-cost acrylic material or ordinary glue for bonding, reducing costs while ensuring beauty and performance.

[0006] Optionally, the pressure relief assembly includes a first elastic sealing pad, a first elastic member and a first crimping member, the first elastic sealing pad is arranged on the outside of the shell, and the first elastic member is crimped between the first crimping member and the first elastic sealing pad; the first elastic sealing pad is adhered to the shell and closes the exhaust hole under the pressure of the first elastic member, and the first elastic member is configured to shrink and deform when the pressure value in the sealing cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

[0007] Optionally, the first crimping member is a pressing block, and the pressing block is threadably connected to the housing via a screw.

[0008] Optionally, the screw is arranged in the sealing cavity, and the housing and the first elastic sealing pad are both provided with through holes for the screw to pass through, and the pressing block is provided with a threaded hole adapted to the screw.

[0009] Optionally, a groove is provided on the outer surface of the shell, the exhaust hole passes through the bottom wall of the groove, and the first elastic sealing pad and the first elastic member are both arranged in the groove.

[0010] Optionally, there is a gap between an edge of a side surface of the first crimping member facing the first elastic sealing pad and an opening edge of the groove.

[0011] Optionally, a metal pad is provided on the side of the first elastic sealing pad facing the elastic member, the first elastic sealing pad and the pad are integrally formed, one end of the first elastic member abuts against the first crimping member, and the other end abuts against the pad.

[0012] Optionally, the first elastic sealing pad is a rubber pad, and the first elastic member is a spring.

[0013] Optionally, the pressure relief assembly includes a second elastic sealing pad and a second crimping piece for pressing the second elastic sealing pad, the second elastic sealing pad is arranged on the outside of the shell, and the second elastic sealing pad fits with the shell and closes the exhaust hole under the pressure of the second crimping piece, and the second elastic sealing pad is configured to shrink and deform when the pressure value in the sealing cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

[0014] Optionally, a waterproof and breathable membrane for closing the exhaust hole is adhered to the inner surface of the shell.

[0015] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings. The best embodiments or means of the present application will be described in detail in conjunction with the drawings, but they are not intended to limit the technical solutions of the present application. In addition, there are multiple features, elements, and components that appear in each of the following texts and drawings, and different symbols or numbers are marked for convenience, but they all represent components with the same or similar structures or functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 A schematic diagram of the structure of an industrial camera provided in an embodiment of the present application;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0019] Figure 3 An exploded view of an industrial camera provided in an embodiment;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of part B;

[0021] Figure 5 A side cross-sectional view of an industrial camera provided in an embodiment;

[0022] Figure 6 for Figure 5 Enlarged schematic diagram of part C.

[0023] Among them, 1. bottom shell, 2. upper shell, 20. groove, 200. exhaust hole, 3. cover plate, 4. pressure relief assembly, 40. first elastic sealing pad, 41. first elastic member, 42. first crimping member, 43. screw, 44. perforation, 5. waterproof breathable membrane. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments based on the embodiments are intended to be used to explain the present application and cannot be understood as limiting the present application.

[0025] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present application. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0026] This embodiment provides an industrial camera such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in , the industrial camera includes a shell and a cover plate 3 arranged on the shell, and the shell and the cover plate 3 cooperate to enclose and form a sealed cavity. The shell of the industrial camera provided in this embodiment includes a bottom shell 1 and an upper shell 2, and the cover plate 3 is arranged on the upper shell 2. It is easy to understand that in other optional embodiments, the shell can also adopt other structural forms according to assembly requirements. In this embodiment, an exhaust hole 200 is provided on the upper shell 2 to connect the sealed cavity with the outside, and the industrial camera also includes a pressure relief component 4 arranged on the upper shell 2. The pressure relief component 4 is configured to allow the gas in the sealed cavity to flow to the outside through the exhaust hole 200 when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located. By providing the exhaust hole 200 and the pressure relief component 4 on the upper shell 2, the exhaust hole 200 is closed or conducted by the pressure relief component 4, so that the sealing of the sealed cavity can be maintained when the pressure value in the sealed cavity is small, and when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located, the pressure is relieved through the exhaust hole 200, so that the pressure value in the sealed cavity will not be too high. This can prevent cracking at the glue point connection between the cover plate 3 and the upper shell 2. In this way, the cover plate 3 of this type of industrial camera can be made of a low-cost acrylic material or ordinary glue for bonding, thereby reducing costs while ensuring aesthetics and performance.

[0027] In other optional embodiments, the exhaust hole and the pressure relief assembly may also be provided on the bottom shell. That is, in the industrial camera provided in this embodiment, a sealed cavity is formed by the cooperation of the shell and the cover plate. Therefore, it is only necessary to provide an exhaust hole on the shell that can connect the sealed cavity with the outside and a pressure relief assembly that can close and conduct the exhaust hole.

[0028] Generally, the pressure of the environment in which the industrial camera is located is one atmosphere. The set threshold value can be verified through experiments. The set threshold value can ensure that the glue point between the cover plate and the upper shell will not crack.

[0029] Specifically in this embodiment, the pressure relief assembly 4 includes a first elastic sealing pad 40, a first elastic member 41 and a first crimping member 42. The first elastic sealing pad 40 is arranged on the outer side of the upper shell 2, and the first elastic member 41 is crimped between the first crimping member 42 and the first elastic sealing pad 40, that is, the first elastic member 41 is located between the first crimping member 42 and the first elastic sealing pad 40, and is squeezed by the first crimping member 42 and the first elastic sealing pad 40, and the first elastic member 41 is in a compressed state. In this way, the first elastic sealing pad 40 is pressed against the upper shell 2 and closes the exhaust hole 200 under the pressure of the first elastic member 41. In addition, the first elastic member 41 in this embodiment is configured to shrink and deform when the pressure value in the sealing cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located. In this way, when the pressure value in the sealed cavity is small, the first elastic sealing pad 40 closes the exhaust hole 200 under the action of the first elastic member 41 and the first crimping member 42, so that the sealed cavity is in a sealed state; and when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located, the pressure in the sealed cavity will act on the first elastic member 41 through the first elastic sealing pad 40, and the first elastic member 41 will be squeezed and shrink and deform. Accordingly, the first elastic sealing pad 40 will separate from the upper shell 2 and produce a gap, so that the gas in the sealed cavity can be discharged through the exhaust hole 200 and the above-mentioned gap to achieve pressure relief.

[0030] The first elastic sealing pad 40 in this embodiment is made of rubber material, and other elastic polymer materials may also be selected in optional implementations; the first elastic member 41 in this embodiment is a spring, and elastic members such as metal springs or rubber columns may also be selected in optional implementations.

[0031] In this embodiment, the first crimping member 42 is a crimping block, which is threadedly connected to the upper shell 2 via a screw 43. Figure 5 and Figure 6As shown in , in this embodiment, the screw 43 is arranged in the sealing cavity, and the upper shell 2 and the first elastic sealing pad 40 are both provided with a through hole 44 for the screw 43 to pass through, and the pressing block is provided with a threaded hole adapted to the screw 43. In this arrangement, the pressing block is threadedly connected to the upper shell 2 by the screw 43, and the pressing block applies a force to the first elastic member 41 so that the first elastic member 41 is in a compressed state. At the same time, the first elastic member 41 in the compressed state presses on the first elastic sealing pad 40, so that the first elastic sealing pad 40 fits on the upper shell 2 and closes the exhaust hole 200. It is easy to understand that in an optional embodiment, the screw can also be arranged on the outside of the upper shell, for example, a through hole for the screw to pass through can be provided on the pressing block, a thread groove can be provided on the outer surface of the upper shell, and the screw can be passed through the through hole on the pressing block and tightened in the above-mentioned thread groove, and the pressing block can also be fixed to the upper shell. Alternatively, the pressing block can also be fixed relative to the upper shell through other connection forms, so as to exert pressure on the first elastic member. For example, in some optional embodiments, no screws are provided, and a clamping structure is provided between the pressing block and the upper shell to clamp and fix the pressing block to the upper shell. Alternatively, a pressing component for pressing the pressing block is provided on the bottom shell, and after the upper shell and the bottom shell are assembled together, the pressing component on the bottom shell presses the pressing block on the upper shell tightly, so that the pressing block remains fixed relative to the upper shell and exerts pressure on the first elastic member.

[0032] In order to facilitate assembly and maintain aesthetics, a groove 20 is provided on the outer surface of the upper shell 2 in the present embodiment, and the exhaust hole 200 runs through the bottom wall of the groove 20. The first elastic sealing gasket 40 and the first elastic member 41 are both provided in the groove 20. This facilitates assembly operations. For example, when assembling the first elastic sealing gasket 40, it is directly placed in the groove 20. The groove 20 can form a preliminary positioning for the first elastic sealing gasket 40, and there is no need to worry about the movement of the first elastic sealing gasket 40 during the subsequent assembly of other components. In addition, the groove 20 also has a certain protective effect on the first elastic sealing gasket 40, preventing dust and light to a certain extent, slowing down the aging of the first elastic sealing gasket 40 and extending its service life. Further, combined with Figure 2 and Figure 6 As shown in the figure, in this embodiment, when the first crimping member 42 is arranged, a gap is provided between the edge of the surface of one side of the first crimping member 42 facing the first elastic sealing pad 40 and the opening edge of the groove 20. This arrangement allows the groove 20 to be fully connected to the outside through the gap, so that when the pressure relief assembly 4 is in the conducting state, the gas discharged from the exhaust hole 200 can be quickly discharged from the gap.

[0033] Considering that the first elastic sealing pad 40 itself also has a certain deformation ability, when the first elastic member 41 is used to directly abut against the first elastic sealing pad 40, a pit may be squeezed out of the portion of the first elastic sealing pad 40 that is in direct contact with the first elastic member 41. This situation may cause the following problems: when the pressure value in the sealing chamber reaches the set threshold value, the first elastic member 41 should undergo a certain degree of contraction deformation according to the design, but due to the existence of the above-mentioned pit, the degree of contraction deformation of the first elastic member 41 is smaller than the design value, which will affect the exhaust pressure relief efficiency and also increase the difficulty of parameter design for the first elastic member 41. Therefore, in some optional embodiments, a metal backing plate (not shown in the figure) can also be provided on the side of the first elastic sealing pad 40 facing the first elastic member 41, and the first elastic sealing pad 40 and the backing plate are integrally formed, and one end of the first elastic member 41 abuts against the first crimping member 42 and the other end abuts against the backing plate. After such arrangement, the first elastic member 41 is in rigid contact with the first crimping member 42 and the backing plate, and only the deformation degree of the first elastic member 41 itself needs to be considered during design, which reduces the design difficulty and ensures the efficiency of exhaust pressure relief. Specifically, the backing plate and the first elastic sealing pad 40 can be directly integrally formed by a metal insert injection molding process.

[0034] Combination Figure 4 and Figure 6 As shown in , the upper shell 2 in this embodiment is pasted with a waterproof breathable membrane 5 for closing the exhaust hole 200 on its inner surface. The waterproof breathable membrane 5 can prevent external water vapor from entering the sealed cavity through the exhaust hole 200, and will not affect the exhaust pressure relief. The waterproof breathable membrane is also called breathing paper, which is a polymer waterproof material. Its basic principle is that it is provided with air holes, and the distance between gas molecules is large, and they can pass through the air holes of the waterproof breathable membrane during the diffusion movement. The distance between liquid molecules is smaller than the distance between the air holes, and under the action of surface tension, the liquid molecules cannot pass through the waterproof breathable membrane, which plays a waterproof role. The waterproof breathable membrane is an existing product and can be purchased directly on the market.

[0035] This embodiment shows a preferred solution of a pressure relief component. In other optional embodiments, the pressure relief component may also include a second elastic seal and a second crimping piece for pressing the second elastic seal. The second elastic seal and the second crimping piece may adopt the same structure as the first elastic seal and the first crimping piece, but the deformation capacity of the second elastic seal is designed to be different from the deformation capacity of the first elastic seal. At the same time, the second elastic seal is arranged on the outside of the upper shell, and the second elastic seal fits with the upper shell and closes the exhaust hole under the pressure of the second crimping piece. The second elastic seal is configured to shrink and deform when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located. That is, in some optional embodiments, the pressure-applying component similar to the first elastic member mentioned above can be eliminated, and the second elastic seal is directly pressed by the second crimping piece. When the pressure value in the sealed cavity reaches the set threshold, the second elastic seal is directly separated from the upper shell by the deformation of the second elastic seal itself, so that the pressure relief component is in a conductive state and the exhaust hole can be exhausted.

[0036] The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. An industrial camera, comprising a housing and a cover plate (3) arranged on the housing, wherein the housing and the cover plate (3) cooperate to form a sealed cavity, characterized in that: The shell is provided with an exhaust hole (200) for connecting the sealed cavity with the outside, and the industrial camera also includes a pressure relief component (4) arranged on the shell, and the pressure relief component (4) is configured to allow the gas in the sealed cavity to flow to the outside through the exhaust hole (200) when the pressure value in the sealed cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

2. The industrial camera according to claim 1, characterized in that: The pressure relief assembly (4) comprises a first elastic sealing pad (40), a first elastic member (41) and a first crimping member (42), wherein the first elastic sealing pad (40) is arranged on the outside of the housing, and the first elastic member (41) is crimped between the first crimping member (42) and the first elastic sealing pad (40); The first elastic sealing pad (40) is fitted to the shell and closes the exhaust hole (200) under the pressure of the first elastic member (41), and the first elastic member (41) is configured to shrink and deform when the pressure value in the sealing cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

3. The industrial camera according to claim 2, characterized in that: The first crimping member (42) is a pressing block, and the pressing block is threadedly connected to the housing via a screw (43).

4. The industrial camera according to claim 3, characterized in that: The screw (43) is arranged in the sealing cavity, and the housing and the first elastic sealing pad (40) are both provided with a through hole (44) for the screw (43) to pass through, and the pressing block is provided with a threaded hole matched with the screw (43).

5. The industrial camera according to claim 2, characterized in that: The outer surface of the shell is provided with a groove (20), the exhaust hole (200) penetrates the bottom wall of the groove (20), and the first elastic sealing pad (40) and the first elastic member (41) are both arranged in the groove (20).

6. The industrial camera according to claim 5, characterized in that: There is a gap between the edge of a side surface of the first crimping member (42) facing the first elastic sealing pad (40) and the opening edge of the groove (20).

7. The industrial camera according to claim 2, characterized in that: A metal backing plate is provided on one side of the first elastic sealing pad (40) facing the elastic member, the first elastic sealing pad (40) and the backing plate are integrally formed, one end of the first elastic member (41) abuts against the first crimping member (42), and the other end abuts against the backing plate.

8. The industrial camera according to claim 2, characterized in that: The first elastic sealing pad (40) is a rubber pad, and the first elastic member (41) is a spring.

9. The industrial camera according to claim 1, characterized in that: The pressure relief assembly (4) comprises a second elastic sealing pad and a second crimping piece for pressing the second elastic sealing pad, the second elastic sealing pad is arranged on the outer side of the shell, and the second elastic sealing pad is fitted with the shell and closes the exhaust hole (200) under the pressure of the second crimping piece, and the second elastic sealing pad is configured to shrink and deform when the pressure value in the sealing cavity reaches a set threshold and is greater than the pressure of the environment in which the industrial camera is located.

10. The industrial camera according to claim 1, characterized in that: The housing has a waterproof and breathable membrane (5) attached to its inner surface for sealing the exhaust hole (200).

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