Sensor and control system

Abstract

The utility model proposes a sensor and a control system, the sensor comprises a control circuit board, a display assembly, a housing and a visual assembly, the display assembly is electrically connected with the control circuit board, an accommodating cavity is formed in the housing, the control circuit board is installed in the accommodating cavity, the housing is provided with a display hole, and the visual assembly is electrically connected with the display hole. The display hole is communicated with the containing cavity and corresponds to the display assembly in position, the visual assembly is installed at the display hole and seals the display hole, and the visual assembly is used for a user to observe the display assembly. According to the sensor provided by the utility model, the display assembly is arranged in the shell so as to interact with a user, the display hole is formed in the shell, and the display hole is sealed by the visual assembly, so that the display assembly is protected by the shell so as to have a waterproof effect, and the visual assembly seals the display hole so that the waterproof weak part of the shell is also subjected to waterproof sealing; the reliability of the sensor is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a sensor and a control system. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] At present, most of the waterproof sensors on the market use screws to fix the upper cover and the lower cover, and the gap between the upper cover and the lower cover is filled with a sealing rubber ring to ensure waterproofing; there are also a small number of waterproof sensors that use a snap-on connection between the upper cover and the lower cover, and then use certain sealing methods to achieve waterproofing. Utility Model Content

[0004] The purpose of the utility model is to at least solve the technical problem that the existing sensor has poor waterproof effect. This purpose is achieved through the following technical solutions:

[0005] The utility model proposes a sensor, which comprises:

[0006] A housing, wherein the housing has a housing cavity, and the housing is provided with a display hole, wherein the display hole is communicated with the housing cavity;

[0007] A control circuit board is arranged in the accommodating cavity;

[0008] A display assembly is disposed in the accommodating cavity and is electrically connected to the control circuit board;

[0009] A visual component is installed at the display hole and seals the display hole. The visual component is used for allowing a user to observe the display information of the display component.

[0010] The sensor proposed by the utility model arranges a display component in a shell to interact with the user, arranges a display hole on the shell, and seals the display hole with a visual component, so that the display component is protected by the shell to have a waterproof effect. The visual component seals the display hole, so that the weak waterproof part of the shell is also waterproofly sealed, thereby further improving the reliability of the sensor.

[0011] In addition, the sensor according to the utility model may also have the following additional technical features:

[0012] In some embodiments of the present invention, the display component includes a digital tube, and the digital tube is electrically connected to the control circuit board.

[0013] In some embodiments of the present invention, the visual component includes a mounting member and a transparent member, the mounting member is provided with a first through hole, the mounting member is installed at the display hole, and the transparent member is installed on the mounting member and closes the first through hole.

[0014] In some embodiments of the present invention, the visible component further includes an adhesive layer, the transparent component is connected to the mounting component via the adhesive layer, and the adhesive layer is arranged to avoid the first through hole.

[0015] In some embodiments of the present invention, the shell is provided with a decorative piece, the decorative piece is provided with a second through hole, the second through hole corresponds to the position of the display hole, and the visual component is mounted on the decorative piece.

[0016] In some embodiments of the utility model, the shell includes an upper cover and a rear shell connected to the upper cover, the accommodating cavity is formed between the upper cover and the rear shell, and a sealing ring is provided at the connection between the upper cover and the rear shell, wherein the upper cover is provided with the display hole, and the decorative piece is installed on the upper cover.

[0017] In some embodiments of the present invention, the sensor further includes a temperature sensing device, which is disposed in the housing and electrically connected to the control circuit board.

[0018] In some embodiments of the utility model, the temperature sensing device includes a joint assembly, a filling layer and a temperature sensing probe, the shell is provided with a first connecting hole, the first connecting hole is communicated with the accommodating cavity, the joint assembly is connected to the first connecting hole, and the joint assembly is provided with a through hole, the filling layer is filled in the through hole and seals the through hole, the temperature sensing probe is inserted in the filling layer, and the temperature sensing probe is electrically connected to the control circuit board.

[0019] In some embodiments of the present utility model, the joint assembly includes a second sealing ring and a connecting pipe, the connecting pipe is threadedly connected to the first connecting hole, and the second sealing ring is arranged between the connecting surface of the connecting pipe and the first connecting hole.

[0020] In some embodiments of the present invention, the temperature sensing device further includes a filter element and a protective cover, the filter element is disposed in the protective cover, the protective cover is mounted on the joint assembly, and one end of the temperature sensing probe away from the joint assembly is inserted into the filter element.

[0021] In some embodiments of the utility model, the sensor also includes a waterproof connector and a third sealing ring. The shell is also provided with a second connecting hole, the second connecting hole is communicated with the accommodating cavity, the waterproof connector is threadedly connected to the second connecting hole, and the third sealing ring is arranged between the connecting surface of the waterproof connector and the shell.

[0022] The second aspect of the utility model provides a control system, comprising the sensor provided in the first aspect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0024] Figure 1 The structure diagram of the sensor according to the embodiment of the utility model is schematically shown;

[0025] Figure 2 The schematic diagram shows the exploded structure of the sensor according to the embodiment of the present utility model;

[0026] Figure 3 The structure diagram of the visual component according to the embodiment of the utility model is schematically shown;

[0027] Figure 4 The structure diagram of the temperature sensing device (the filter element is not shown) according to the embodiment of the utility model is schematically shown;

[0028] 10. transparent member; 11. mounting member; 111. first through hole; 12. adhesive layer;

[0029] 20, upper cover; 201, display hole; 202, groove; 21, rear shell; 22, digital tube; 23, control circuit board; 24, decorative part; 241, second through hole; 25, accommodating cavity; 26, first sealing ring; 27, first connecting hole; 28, through hole;

[0030] 30. Connecting pipe; 31. Second sealing ring; 32. Filling layer; 33. Temperature sensor; 34. Filter element; 35. Protective cover; 36. Threaded joint;

[0031] 40. Waterproof joint; 41. Third sealing ring. DETAILED DESCRIPTION

[0032] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0034] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0035] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0036] like Figures 1 to 4 As shown, according to the implementation mode of the present invention, the present invention proposes a sensor, the sensor comprising:

[0037] A housing, wherein a receiving cavity 25 is formed in the housing, and a display hole 201 is provided in the housing, the display hole 201 is communicated with the receiving cavity 25 and corresponds to the position of the display component;

[0038] A control circuit board 23 is installed in the accommodating cavity 25;

[0039] The display assembly is installed in the accommodating cavity 25 and is electrically connected to the control circuit board 23;

[0040] The visual component is installed at the display hole 201 and seals the display hole 201. The visual component is used for allowing users to observe the display component.

[0041] It is understandable that the control circuit board 23 can be a PCBA (Printed Circuit Board Assembly) printed circuit board, and the display component can be a digital tube 22 or a light-emitting diode or other components that can be controlled by the control circuit board 23 to emit interactive lights. The shell can be a structure formed by buckling two half shells, and a receiving cavity 25 is formed inside the receiving cavity 25. The control circuit board 23 is fixed in the receiving cavity 25 through the mounting column in the receiving cavity 25. The display component can be installed on the control circuit board 23 to achieve fixation and facilitate electrical connection with the control circuit board 23. The shell is provided with a display hole 201, and the display hole 201 communicates with the outside world and the receiving cavity 25. A visual component can be arranged at the display hole 201 to seal and waterproof the display hole 201. The visual component can be a transparent plastic part or a glass part that is installed on the shell with a fixed structure and seals the display hole 201. In order to enhance the waterproof effect, the connection between the visual component and the shell can be realized by ultrasonic welding or gluing to reduce water leakage points and improve the waterproof effect of weak waterproof parts.

[0042] The sensor proposed by the utility model interacts with the user by arranging a display component in the shell, and a display hole 201 is arranged on the shell, and the display hole 201 is sealed by a visual component, so that the display component is protected by the shell to have a waterproof effect. The visual component seals the display hole 201, so that the weak waterproof part of the shell is also waterproofly sealed, thereby further improving the reliability of the sensor.

[0043] In some embodiments of the present invention, the display assembly includes a digital tube 22 , which is electrically connected to a control circuit board 23 , and is used to display the working status of the sensor.

[0044] It can be understood that the digital tube 22 can display numbers or other information. The digital tube 22 can be arranged on the control circuit board 23. The digital tube 22 is electrically connected to the control circuit board 23. The control circuit board 23 can convert the working status of the sensor into an electrical signal and transmit it to the digital tube 22 for display. For example, when the sensor fails, the digital tube 22 can be controlled to display the number or symbol corresponding to the sensor failure to remind the user of the sensor failure.

[0045] In some embodiments of the utility model, the visible component includes a transparent part 11 and a mounting part 11, the mounting part 11 is provided with a first through hole 111, the mounting part 11 is installed at the display hole 201, the transparent part 11 is installed on the mounting part 11, and the transparent part 11 closes the first through hole 111.

[0046] It is understandable that the transparent member 11 can be a transparent glass plate or a transparent plastic plate, and the mounting member 11 can be selected in different colors according to user needs to improve the aesthetics, and the shape of the mounting member 11 can be adapted to the display hole 201. For example, when the display hole 201 is circular, the mounting member 11 is annular, and the housing is provided with a mounting groove on the outer periphery of the display hole 201, and the mounting member 11 is embedded and installed in the mounting groove to achieve fixation, and the first through hole 111 can also be circular, and the transparent member 11 can be fixed to the mounting member 11 by gluing, and the transparent member 11 can also be connected to the mounting member 11 by threading or injection molding to achieve connection and have a good waterproof effect.

[0047] In some embodiments of the present invention, the visible component further includes an adhesive layer 12 , the transparent component 11 is connected to the mounting component 11 via the adhesive layer 12 , and the adhesive layer 12 is arranged to avoid the first through hole 111 .

[0048] It is understandable that the adhesive layer 12 can be a foam layer, and the foam layer can be used to connect the mounting member 11 and the transparent member 11, which can have a good waterproof effect. The adhesive layer 12 can be arranged in an annular shape to avoid the first through hole 111, so as to prevent the adhesive layer 12 from affecting the user's observation of the display assembly.

[0049] In some embodiments of the utility model, the shell includes a shell and a decorative piece 24, a accommodating cavity 25 is formed in the shell, the shell is provided with a display hole 201, the decorative piece 24 is installed on the shell, a second through hole 241 is provided on the decorative piece 24, the second through hole 241 corresponds to the position of the display hole 201, and the visual component is installed on the decorative piece 24.

[0050] It is understandable that the housing can be formed by snapping together two half shells, so that the sensor can be opened for maintenance and installation. A accommodating cavity 25 is formed inside it for installing electrical components such as a control circuit board 23. A second through hole 241 can be provided on the front side of the housing. The second through hole 241 can be provided with a plurality of rectangular holes spaced along the first direction to match the display of the digital tube 22. The second through hole 241 can be provided directly above the digital tube 22. A matching groove can also be provided on the housing, and a second through hole 241 is provided at the bottom of the matching groove. In order to improve the aesthetics of the sensor, a decorative plate can be installed in the matching groove. The decorative plate can be selected in the color that the user likes. The decorative plate can be fixed in the matching groove by ultrasonic welding and has a good waterproof effect. A display hole 201 can be provided on the decorative plate, and the mounting member 11 in the visual component is mounted on the decorative plate by ultrasonic welding.

[0051] In some embodiments of the utility model, the shell includes an upper cover 20, a rear shell 21 and a first sealing ring. The upper cover 20 is connected to the rear shell 21. A accommodating cavity 25 is formed between the upper cover 20 and the rear shell 21. The sealing ring is arranged at the connection between the upper cover 20 and the rear shell 21. A display hole 201 is provided on the upper cover 20, and a decorative member 24 is installed on the upper cover 20.

[0052] It can be understood that the upper cover 20 and the rear shell 21 can be a rectangular half-shell structure, and a groove 202 or a protrusion is provided at the opening. The upper cover 20 can be snap-fitted with the rear shell 21 through the groove 202 and the protrusion structure, and a first sealing ring can be provided in the groove 202 to enhance the waterproof effect of the connection.

[0053] Specifically, the outer surface of the upper cover 20 is provided with a groove 202, the shape of the groove 202 is adapted to the shape of the decorative element 24, and the decorative element 24 is embedded and installed in the groove 202.

[0054] In some embodiments of the present invention, the sensor further includes a temperature sensing device, which is mounted on the housing and electrically connected to the control circuit board 23 .

[0055] It is understandable that the temperature sensing device can sense the external ambient temperature and convert the temperature signal into an electrical signal and transmit it to the control circuit board 23. The temperature sensing device may include a temperature sensing probe 33, and the specific implementation may refer to the existing temperature sensing probe 33.

[0056] In some embodiments of the utility model, the temperature sensing device includes a joint assembly, a filling layer 32 and a temperature sensing probe 33. A first connecting hole 27 is also provided on the shell, and the first connecting hole 27 is connected to the accommodating cavity 25. The joint assembly is installed in the first connecting hole 27. The joint assembly is provided with a through hole 28. The filling layer 32 fills the through hole 28 and seals the through hole 28. The temperature sensing probe 33 is inserted in the filling layer 32, and the temperature sensing probe 33 is electrically connected to the control circuit board 23.

[0057] It is understandable that a first connecting hole 27 is provided on the peripheral wall of the shell, and the first connecting hole 27 may be a threaded hole to facilitate screw connection with the connector assembly. The connector assembly may be a connector structure with external threads, which is connected to the first connecting hole 27 by screw connection, and the interior of the connector assembly is in communication with the first connecting hole 27, and further in communication with the accommodating cavity 25. A filling layer 32 may be provided in the connector assembly by means of glue pouring, and the temperature sensing probe 33 may be inserted in the filling layer 32 for fixation, and one end of the temperature sensing probe 33 extending into the connector assembly may be electrically connected to the control circuit board 23 through a wiring harness to realize signal transmission. The waterproof effect of the connection is achieved by the threaded cooperation between the connector assembly and the first connecting hole 27, and the connection between the temperature sensing probe 33 and the connector assembly is sealed by means of glue pouring to improve the waterproof effect of the weak point.

[0058] In some embodiments of the present invention, the joint assembly includes a second sealing ring 31 and a connecting pipe 30 . The connecting pipe 30 is threadedly connected to the first connecting hole 27 . The second sealing ring 31 is disposed at the connection between the connecting pipe 30 and the first connecting hole 27 .

[0059] It can be understood that the connecting pipe 30 is a tubular structure with external threads, and the connecting pipe 30 is connected to the first connecting hole 27 by screwing, and a second sealing ring 31 is provided at the screwing point to enhance the waterproof effect at this point. Specifically, a first annular boss can be provided on the peripheral wall of the connecting pipe 30, and the first annular boss extends along the circumference of the connecting pipe 30 and protrudes from the peripheral wall of the connecting pipe 30. When the connecting pipe 30 is connected to the first connecting hole 27, the first annular boss can squeeze the second sealing ring 31 between the first annular boss and the housing, and cooperate with the threaded sealing structure to further improve the waterproof effect at this point.

[0060] In some embodiments of the present invention, the temperature sensing device further includes a filter element 34 and a protective cover 35 , the filter element 34 is disposed in the protective cover 35 , the protective cover 35 is mounted on the joint assembly, and one end of the temperature sensing probe 33 away from the joint assembly is inserted into the filter element 34 .

[0061] It is understandable that a filter element 34 may be provided at one end of the temperature sensing probe 33 away from the joint assembly. The filter element 34 may be a cylindrical structure and have a plug hole. The filter element 34 may be a PE filter element 34. The temperature sensing probe 33 can be plugged into the plug hole, so that the filter element 34 can wrap the end of the temperature sensing probe 33 to filter impurities, protect the temperature sensing probe 33, and improve the reliability of the temperature sensing probe 33. The filter element 34 is fixed by filling the protective cover 35 in an interference fit manner. The protective cover 35 may be a cylindrical structure and is provided with a through hole. The protective cover 35 may be connected and fixed to the joint assembly by welding, clamping or screwing, and the filter element 34 is inserted into the protective cover 35 to be fixed.

[0062] Specifically, a threaded joint 36 may be provided at one end of the connecting pipe 30 away from the housing, and the threaded joint 36 may be fixed to the connecting pipe 30 by hydrogen peroxide glue, and glue is poured into the threaded joint 36, and the temperature sensing probe 33 is fixed in the threaded joint 36. The threaded joint 36 is also coaxially arranged and connected with the connecting pipe 30. The threaded joint 36 has an external thread, and the protective cover 35 has an internal thread. The protective cover 35 can be fixed to the threaded joint 36 by screwing to improve the reliability of the installation.

[0063] In some embodiments of the utility model, the sensor also includes a waterproof connector 40 and a third sealing ring 41. A through hole 28 is also provided on the shell, and the through hole 28 is connected to the accommodating cavity 25. The waterproof connector 40 is screwed into the through hole 28, and the third sealing ring 41 is arranged at the connection between the waterproof connector 40 and the shell.

[0064] It is understandable that the waterproof connector 40 can refer to the existing waterproof connector 40 structure. The waterproof connector 40 is provided with an external thread, fixed to the housing by screw connection, and connected to the through hole 28, and then connected to the accommodating cavity 25. The waterproof connector 40 can be arranged next to the temperature sensing device. Specifically, a second annular boss can be provided on the peripheral wall of the waterproof connector 40, and the second annular boss extends along the circumference of the waterproof connector 40 and protrudes from the peripheral wall of the waterproof connector 40. When the waterproof connector 40 is connected to the through hole 28, the second annular boss can squeeze the third sealing ring 41 between the second annular boss and the housing, and cooperate with the threaded sealing structure to further improve the waterproof effect at this location.

[0065] The second aspect of the utility model provides a control system, comprising the sensor provided in the first aspect of the utility model.

[0066] The above are only preferred specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A sensor, characterized in that: The sensor comprises: A housing, wherein the housing has a housing cavity, and the housing is provided with a display hole, wherein the display hole is communicated with the housing cavity; A control circuit board is arranged in the accommodating cavity; A display assembly is disposed in the accommodating cavity and is electrically connected to the control circuit board; A visual component is installed at the display hole and seals the display hole. The visual component is used for allowing a user to observe the display information of the display component.

2. The sensor according to claim 1, characterized in that The display component comprises a digital tube, and the digital tube is electrically connected to the control circuit board.

3. The sensor according to claim 2, characterized in that The visual component comprises a mounting member and a transparent member, wherein the mounting member is provided with a first through hole, the mounting member is mounted at the display hole, and the transparent member is mounted on the mounting member and closes the first through hole.

4. The sensor according to claim 3, characterized in that The visible component further includes an adhesive layer, through which the transparent component is connected to the mounting component, and the adhesive layer is arranged to avoid the first through hole.

5. The sensor according to claim 1, characterized in that The shell is provided with a decorative piece, the decorative piece is provided with a second through hole, the second through hole corresponds to the position of the display hole, and the visual component is mounted on the decorative piece.

6. The sensor according to claim 5, characterized in that The shell includes an upper cover and a rear shell connected to the upper cover, the accommodating cavity is formed between the upper cover and the rear shell, and a sealing ring is provided at the connection between the upper cover and the rear shell, wherein the upper cover is provided with the display hole, and the decorative component is installed on the upper cover.

7. The sensor according to claim 1, characterized in that The sensor further comprises a temperature sensing device, which is arranged on the housing and electrically connected to the control circuit board.

8. The sensor according to claim 7, characterized in that The temperature sensing device includes a joint assembly, a filling layer and a temperature sensing probe, the shell is provided with a first connecting hole, the first connecting hole is communicated with the accommodating cavity, the joint assembly is connected to the first connecting hole, and the joint assembly is provided with a through hole, the filling layer is filled in the through hole and seals the through hole, the temperature sensing probe is inserted in the filling layer, and the temperature sensing probe is electrically connected to the control circuit board.

9. The sensor according to claim 8, characterized in that The joint assembly includes a second sealing ring and a connecting pipe, the connecting pipe is threadedly connected to the first connecting hole, and the second sealing ring is arranged between the connecting surface of the connecting pipe and the first connecting hole.

10. The sensor according to claim 8, characterized in that The temperature sensing device further comprises a filter element and a protective cover, wherein the filter element is arranged in the protective cover, the protective cover is mounted on the joint assembly, and one end of the temperature sensing probe away from the joint assembly is inserted into the filter element.

11. The sensor according to any one of claims 1 to 10, characterized in that: The sensor also includes a waterproof connector and a third sealing ring. The shell is also provided with a second connecting hole, the second connecting hole is communicated with the accommodating cavity, the waterproof connector is threadedly connected to the second connecting hole, and the third sealing ring is arranged between the waterproof connector and the connecting surface of the shell.

12. A control system, characterized in that: The sensor comprises the sensor according to any one of claims 1 to 11.

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