Sensor circuit board fixing structure convenient to replace

Abstract

The utility model relates to the technical field of water quality sampler accessories, in particular to a sensor circuit board fixing structure convenient to replace, which comprises a heat preservation shell, a main board arranged on the outer surface of the heat preservation shell and a sensor circuit board arranged on the inner surface of the heat preservation shell. A plurality of mounting grooves located right above the sample bottles are formed in the inner surface of the heat preservation shell, and an insertion hole upwards penetrating through the heat preservation shell is formed in one end of each mounting groove; female headers are arranged on the main board corresponding to the jacks; the sensor circuit board is fixedly installed in the installation groove through screws, one end of the sensor circuit board is provided with a pin header, and the pin header is upwards in butt joint with the insertion female header. According to the utility model, the main board and the sensor circuit board are connected through the pin header and the female header, so that the easily damaged sensor is independent, and the replacement and maintenance of the sensor are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of water sampler accessories, in particular to a sensor circuit board fixing structure which is convenient to replace. Background Art

[0002] The water quality sampler is used to collect sewage samples at the test point. When collecting samples, the water quality sampler usually leaves the equipment at the collection point in the water area, and uses the water quality sampler to automatically collect water in the water area multiple times according to time periods. After the time is up, the staff will recycle it, which provides convenience for water quality sampling.

[0003] Most of the water quality samplers currently on the market have various functions, such as automatic collection and refrigeration functions. Among them, for water quality automatic samplers with refrigeration function, the sample bin is usually equipped with an insulation board, and the sample bottles are arranged and placed in the sample bin. In order to detect whether the sample bin is full of sample bottles, it is necessary to set a sensor to detect the position of the sample bottles. During the wiring process, the sensor line usually runs through the insulation board. When the sensor needs to be replaced, it is inconvenient to disassemble and assemble because the sensors and serial port connectors are respectively set at both ends of the sensor line. Therefore, a sensor circuit board fixing structure that is easy to replace is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a sensor circuit board fixing structure that is easy to replace, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sensor circuit board fixing structure that is easy to replace, comprising a heat preservation shell, a main board arranged on the outer surface of the heat preservation shell, and a sensor circuit board arranged on the inner surface of the heat preservation shell, wherein the inner surface of the heat preservation shell is provided with a plurality of mounting grooves located directly above the sample bottle, and one end of the mounting groove is provided with a jack that penetrates upward through the heat preservation shell;

[0007] Female headers are provided on the mainboard corresponding to each jack position;

[0008] The sensor circuit board is fixed in the installation groove by screws. A pin header is arranged at one end of the sensor circuit board, and the pin header is upwardly inserted into the female header.

[0009] As a preferred solution, a sealing ring is provided on the surface of the female connector, and the sealing ring is pressed and fitted with the inner wall of the socket.

[0010] As a preferred solution, a sensor is arranged on the lower surface of the sensor circuit board just above the sample bottle, and the circuit of the sensor is electrically connected to the pin header.

[0011] As a preferred solution, the mainboard is fixedly mounted on the heat-insulating shell by means of screws.

[0012] It can be seen from the technical solution provided by the above-mentioned utility model that the utility model provides a sensor circuit board fixing structure that is easy to replace, and the beneficial effect is: by connecting the main board and the sensor circuit board by pin and female headers, the easily damaged sensor is separated out, making the replacement and maintenance of the sensor more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a sensor circuit board fixing structure that is easy to replace in the utility model;

[0014] Figure 2 This is an exploded view of a sensor circuit board fixing structure that is easy to replace in the utility model;

[0015] Figure 3 for Figure 2 Schematic diagram of the detailed structure of area A in the middle.

[0016] In the figure: 1. Insulation shell; 11. Mounting slot; 12. Jack; 2. Main board; 21. Female header; 22. Sealing ring; 3. Sensor circuit board; 31. Pin header; 32. Sensor. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0019] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1-3 As shown, the embodiment of the utility model provides a sensor circuit board fixing structure that is easy to replace, including a heat preservation shell 1, a main board 2 arranged on the outer surface of the heat preservation shell 1, and a sensor circuit board 3 arranged on the inner surface of the heat preservation shell 1. The inner surface of the heat preservation shell 1 is provided with a plurality of mounting grooves 11 located just above the sample bottle, and one end of the mounting groove 11 is provided with a plug hole 12 that penetrates upward through the heat preservation shell 1;

[0023] Female headers 21 are provided on the mainboard 2 at positions corresponding to the sockets 12;

[0024] The sensor circuit board 3 is fixedly installed in the installation groove 11 by means of screws. A pin header 31 is provided at one end of the sensor circuit board 3 , and the pin header 31 is upwardly inserted into the female header 21 for docking.

[0025] In the above device, in order to improve the sealing between the female connector 21 and the heat-insulating shell 1 , a sealing ring 22 is provided on the surface of the female connector 21 , and the sealing ring 22 is pressed and fitted with the inner wall of the insertion hole 12 .

[0026] In the above device, in order to achieve accurate detection of the sample bottle, a sensor 32 is provided on the lower surface of the sensor circuit board 3 just above the sample bottle, and the circuit of the sensor 32 is electrically connected to the pin header 31 .

[0027] In the above device, in order to fix the main board 2, the main board 2 is fixedly mounted on the heat-insulating shell 1 by means of screws.

[0028] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0029] See also Figure 1-3 , comprising a heat-insulating shell 1, a main board 2 arranged on the outer surface of the heat-insulating shell 1, and a sensor circuit board 3 arranged on the inner surface of the heat-insulating shell 1. In order to fix the main board 2, the main board 2 is fixedly mounted on the heat-insulating shell 1 by screws;

[0030] See also Figure 2The inner surface of the heat preservation shell 1 is provided with several installation grooves 11 located just above the sample bottle, and one end of the installation groove 11 is provided with a plug hole 12 that penetrates the heat preservation shell 1 upward; a female connector 21 is provided on the main board 2 at a position corresponding to each plug hole 12; the sensor circuit board 3 is fixedly installed in the installation groove 11 by screws, and one end of the sensor circuit board 3 is provided with a pin header 31, which is inserted upward and docked with the female connector 21;

[0031] By connecting the main board 2 and the sensor circuit board 3 through the pin header 31 and the female header 21 , the easily damaged sensor 32 is separated out, making replacement and maintenance of the sensor 32 more convenient.

[0032] See also Figure 3 In order to improve the sealing between the female connector 21 and the heat preservation shell 1, a sealing ring 22 is provided on the surface of the female connector 21. The sealing ring 22 is pressed and fitted with the inner wall of the jack 12. When installing, the female connector 21 is inserted into the installation groove 11.

[0033] See also Figure 2 In order to accurately detect the sample bottle, a sensor 32 is provided on the lower surface of the sensor circuit board 3 just above the sample bottle, and the circuit of the sensor 32 is electrically connected to the pin header 31;

[0034] The sensor 32 is a liquid level sensor capable of detecting the liquid level in the sample bottle. Furthermore, an ultrasonic liquid level sensor may be selected to synchronously detect whether a sample bottle is placed under the sensor 32 .

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sensor circuit board fixing structure that is easy to replace, comprising a heat-insulating shell (1), a main board (2) arranged on the outer surface of the heat-insulating shell (1), and a sensor circuit board (3) arranged on the inner surface of the heat-insulating shell (1), characterized in that: The inner surface of the heat-insulating shell (1) is provided with a plurality of mounting grooves (11) located directly above the sample bottle, and one end of the mounting groove (11) is provided with a plug hole (12) penetrating upward through the heat-insulating shell (1); The mainboard (2) is provided with female connectors (21) at positions corresponding to the respective sockets (12); The sensor circuit board (3) is fixedly mounted in the mounting groove (11) by means of screws. A pin header (31) is provided at one end of the sensor circuit board (3). The pin header (31) is upwardly inserted into a female header (21) for docking.

2. The sensor circuit board fixing structure that is easy to replace according to claim 1 is characterized in that: A sealing ring (22) is provided on the surface of the female row (21), and the sealing ring (22) is pressed and fitted with the inner wall of the insertion hole (12).

3. The sensor circuit board fixing structure that is easy to replace according to claim 1 is characterized in that: A sensor (32) is arranged on the lower surface of the sensor circuit board (3) just above the sample bottle, and the circuit of the sensor (32) is electrically connected to the pin header (31).

4. The sensor circuit board fixing structure that is easy to replace according to claim 1 is characterized in that: The main board (2) is fixedly mounted on the heat-insulating shell (1) by means of screws.

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