Weighing instrument circuit board structure and weighing instrument

Abstract

The utility model relates to the technical field of metering and weighing, and discloses a weighing instrument circuit board structure and a weighing instrument, the weighing instrument circuit board structure comprises a housing, a display panel and a golden finger, the housing comprises a shell, a front shell and a rear shell, the front shell and the rear shell are connected to two opposite sides of the shell, and the shell, the front shell and the rear shell enclose to form a mounting cavity; the display panel is embedded in the front shell and comprises a liquid crystal display screen and a first golden finger slot, the liquid crystal display screen is arranged on the side, back to the rear shell, of the display panel, and the first golden finger slot is formed in the side, facing the rear shell, of the display panel; the mainboard is installed in the installation cavity and electrically connected with the display panel, the two ends of the mainboard are connected to the inner side wall of the shell, and a first golden finger is arranged on the mainboard and matched with the first golden finger slot in an inserted mode. In the scheme, the mainboard is installed in the shell by adopting a card type structure, and the display panel and the mainboard are connected by adopting the slot, so that the space is saved, the connection reliability is enhanced, and the plugging and unplugging of the circuit board are facilitated. The installation structure is simplified, and assembling and disassembling are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement and weighing, in particular to a weighing instrument circuit board structure and a weighing instrument. Background Art

[0002] With the development of science and technology, various weighing instruments have flooded the market, with more and more styles and functions. There are many types of weighing instruments on the market, including desktop, column, embedded, wall-mounted, rail-mounted, etc. Due to the division of different functional units, there are often multiple circuit boards inside the instrument. Multiple circuit boards are generally stacked in multiple layers, and adjacent boards are supported by copper columns and connected by connectors or cables. Although this makes the space inside the weighing instrument more compact, it also has the disadvantages of troublesome assembly and inconvenient disassembly. During assembly, the fixing of the supporting copper columns, the alignment of the connectors, and the production of the cables all consume a lot of time, which increases the time cost of maintenance and disassembly. Utility Model Content

[0003] The main purpose of the utility model is to provide a weighing instrument circuit board structure, aiming to simplify the installation structure of the weighing instrument and improve the convenience of disassembly and assembly of the weighing instrument.

[0004] To achieve the above purpose, the weighing instrument circuit board structure proposed by the utility model includes:

[0005] A housing, the housing comprising a shell, a front shell and a rear shell, the front shell and the rear shell are respectively connected to two opposite sides of the shell, and the shell, the front shell and the rear shell enclose a mounting cavity;

[0006] A display panel, the display panel is embedded in the front shell, the display panel comprises a liquid crystal display screen and a first gold finger slot, the liquid crystal display screen is arranged on a side of the display panel facing away from the rear shell, and the first gold finger slot is arranged on a side of the display panel facing the rear shell;

[0007] A main board is installed in the installation cavity and electrically connected to the display panel, two ends of the main board are connected to the inner wall of the shell, and a first gold finger is provided on the main board, and the first gold finger is plugged into and matched with the first gold finger slot.

[0008] Optionally, the weighing instrument circuit board structure also includes an expansion board, the main board and the expansion board are installed in the installation cavity at intervals, a second gold finger is provided on the expansion board, and a second gold finger slot is also provided on the display board corresponding to the second gold finger, and the second gold finger is plugged into the second gold finger slot.

[0009] Optionally, a card slot is formed on the inner side wall of the shell, and the main board and the expansion board are carded in the card slot.

[0010] Optionally, an inner side wall of the shell includes at least four of the card slots, and the card slots are distributed at intervals on the inner side wall of the shell.

[0011] Optionally, the display panel is provided with connection holes, which are respectively arranged at the upper and lower sides of the liquid crystal display screen, and are used to connect the display panel to the front shell.

[0012] Optionally, the weighing instrument circuit board structure further includes a wiring terminal, and the wiring terminal is arranged on the front shell and electrically connected to the main board.

[0013] Optionally, the shell is a cylindrical structure with a rectangular cross-section.

[0014] Optionally, an industrial rail buckle is connected to a side of the rear shell facing away from the front shell.

[0015] Optionally, the expansion board is provided with Profinet, Profibus-DP, Ethernet, DeviceNet, RS485 industrial bus interfaces.

[0016] The utility model also provides a weighing instrument, which comprises the weighing instrument circuit board structure described above.

[0017] In the technical solution of the utility model, a weighing instrument circuit board structure is proposed, including a housing, a display panel and a main board. The main board is installed in the housing in a card-type structure and connected to the display panel by a slot, which saves space, enhances the connection reliability, and facilitates the plugging and unplugging of the circuit board. The installation structure of the weighing instrument circuit table is simplified, which is convenient for assembly and disassembly, and the convenience of maintenance is improved on the basis of ensuring that the circuit board structure is fully functional. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0019] Figure 1 A three-dimensional structural diagram of an embodiment of a weighing instrument circuit board structure provided by the utility model;

[0020] Figure 2 for Figure 1 A schematic diagram showing the front and back of the panel;

[0021] Figure 3It is a cross-sectional schematic diagram of the circuit board structure of the weighing instrument of the utility model;

[0022] Figure 4 for Figure 1 Schematic diagram of the structure of the middle front shell, main board and expansion board;

[0023] Figure 5 for Figure 1 Schematic diagram of the structure of the middle and rear shell.

[0024] Description of Figure Numbers:

[0025]

[0026] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0030] With the development of science and technology, various weighing instruments have flooded the market, with more and more styles and functions. There are many types of weighing instruments on the market, including desktop, column, embedded, wall-mounted, rail-mounted, etc. Due to the division of different functional units, there are often multiple circuit boards inside the instrument. Multiple circuit boards are generally stacked in multiple layers, and adjacent boards are supported by copper columns and connected by connectors or cables. Although this makes the space inside the weighing instrument more compact, it also has the disadvantages of troublesome assembly and inconvenient disassembly. During assembly, the fixing of the supporting copper columns, the alignment of the connectors, and the production of the cables all consume a lot of time, which increases the time cost of maintenance and disassembly.

[0031] In order to solve the above problems, the utility model proposes a weighing instrument circuit board structure, which aims to simplify the installation structure of the weighing instrument and improve the convenience of disassembly and assembly of the weighing instrument. Figures 1 to 5 The present invention is a schematic structural diagram of an embodiment of the weighing instrument circuit board structure provided by the present invention.

[0032] Please refer to Figures 1 to 5 The utility model proposes a weighing instrument circuit board structure 1000, comprising a shell 1, a display board 2 and a main board 3, wherein the shell 1 comprises a shell 11, a front shell 12 and a rear shell 13, wherein the front shell 12 and the rear shell 13 are respectively connected to opposite sides of the shell 11, and the shell 11, the front shell 12 and the rear shell 13 are enclosed to form an installation cavity; the display board 2 is embedded in the front shell 12, the display board 2 comprises a liquid crystal display screen 21 and a first gold finger slot 22, the liquid crystal display screen 21 is arranged on the side of the display board 2 facing away from the rear shell 13, and the first gold finger slot 22 is arranged on the side of the display board 2 facing the rear shell 13; the main board 3 is installed in the installation cavity and is electrically connected to the display board 2, the two ends of the main board 3 are connected to the inner side wall of the shell 11, the main board 3 is provided with a first gold finger 31, and the first gold finger 31 is plugged and matched with the first gold finger slot 22.

[0033] In the technical solution of the utility model, a weighing instrument circuit board structure 1000 is proposed, including a housing 1, a display panel 2 and a main board 3. The main board 3 is installed in the housing 1 in a card-type structure and connected to the display panel 2 by a slot, which saves space, enhances the connection reliability, and facilitates the plugging and unplugging of the circuit board. The installation structure of the weighing instrument circuit board is simplified, which is convenient for assembly and disassembly, and the convenience of maintenance is improved on the basis of ensuring that the circuit board structure is fully functional.

[0034] In an optional embodiment, in order to expand the function of the weighing instrument circuit board structure 1000, the weighing instrument circuit board structure 1000 further includes an expansion board 4, the main board 3 and the expansion board 4 are installed in the installation cavity at intervals, the expansion board 4 is provided with a second gold finger 41, and the display board 2 is further provided with a second gold finger slot 23 corresponding to the second gold finger 41, and the second gold finger 41 is plugged and matched with the second gold finger slot 23. Please refer to Figures 1 to 4 An expansion board 4 is also provided in the installation cavity. The expansion board 4 is connected to the housing 11 in parallel with the main board 3. The second gold finger 41 provided on the expansion board 4 is plugged into the second gold finger slot 23 on the display board 2 to achieve electrical connection between the expansion board 4 and the display board 2, so as to facilitate the transmission of electrical signals.

[0035] In an optional embodiment, in order to facilitate the assembly and disassembly of the main board 3 and the expansion board 4 on the inner wall of the housing 11, a slot 111 is formed on the inner wall of the housing 11, and the main board 3 and the expansion board 4 are clamped in the slot 111. Figures 1 to 4 The upper and lower ends of the main board 3 and the expansion board 4 close to the inner wall of the shell 11 are both clamped in the card slot 111, so that the main board 3 and the expansion board 4 can be limited in the left and right directions through the card slot 111, thereby avoiding the internal shaking of the main board 3 and the expansion board 4 due to the movement of the shell 11, and ensuring the working stability of the main board 3 and the expansion board 4. In addition, when it is necessary to disassemble and assemble the main board 3 and the expansion board 4, the main board 3 and the expansion board 4 are pushed and pulled back and forth in the extension direction of the card slot 111, so that the first gold finger 31 and the second gold finger 41 on the main board 3 and the expansion board 4 can be plugged in and out of the first gold finger slot 22 and the second gold finger slot 23 on the display board 2, thereby improving the convenience of connection between the main board 3, the expansion board 4 and the display board 2, eliminating the wiring, connectors, etc., saving space, and facilitating the disassembly and assembly of the weighing instrument during maintenance.

[0036] Furthermore, in order to improve the adaptability of the installation of the main board 3 and the expansion board 4, an inner side wall of the housing 11 includes at least four card slots 111, and each card slot 111 is distributed at intervals on the inner side wall of the housing 11. Figure 3At least one additional slot 111 is provided around the slots 111 for installing the main board 3 and the expansion board 4. Optionally, the number of additional slots 111 may be one or a plurality of slots 111 provided side by side. Thus, by providing a plurality of slots 111 on the inner wall of the shell 11, the installation spacing between the main board 3 and the expansion board 4 can be flexibly adjusted during installation, and the installation space in the installation cavity can be reasonably planned. On the other hand, by changing the spacing between the slots 111, it is convenient to add an expansion board 4 for installation, thereby further expanding the function of the weighing instrument circuit board.

[0037] In an optional embodiment, in order to facilitate the installation of the display panel 2 on the front shell 12, the display panel 2 is provided with connection holes 24, and the connection holes 24 are respectively provided on the upper and lower sides of the liquid crystal display screen 21, so as to connect the display panel 2 to the front shell 12. Figure 1 and Figure 2 In this embodiment, the connection holes 24 are arranged on the upper and lower sides of the liquid crystal display screen 21. In other embodiments, the connection holes 24 can also be arranged on the left and right sides of the liquid crystal display screen 21 or arranged diagonally, which is not specifically limited here. A connection part is arranged on the periphery of the front shell 12 corresponding to the display panel 2. The connection holes 24 are penetrated by screws and then screwed and fixed with the connection part on the shell 1, so that the display panel 2 is installed on the front shell 12 and the display panel 2 is partially exposed outside the front shell 12. In addition, in order to facilitate the operator to operate the display panel 2, a plurality of operation buttons are arranged at intervals along the vertical direction on the right side of the liquid crystal display screen 21, so that the operator can use various functions of the weighing instrument through buttons.

[0038] In an optional embodiment, in order to facilitate the connection of the weighing instrument circuit board structure 1000, the weighing instrument circuit board structure 1000 further includes a connection terminal 5, and the connection terminal 5 is arranged on the front shell 12 and is electrically connected to the main board 3. Figure 1 and Figure 3 The wiring terminals 5 are exposed to the front shell 12 in the vertical direction, so that the weighing instrument circuit board structure 1000 can be connected with wires or cables. Optionally, in this embodiment, the wiring terminals 5 include sensor wiring terminals, power wiring terminals, serial port wiring terminals, analog output wiring terminals, IO input and output wiring terminals, network interfaces, extended industrial bus interfaces, etc. So that the weighing instrument circuit structure can meet various usage scenarios.

[0039] In an optional embodiment, the shape of the housing 11 can have a variety of options. In this embodiment, the housing 11 is a cylindrical structure with a rectangular cross section. Figures 1 to 4The shell 1 is a regular rectangular parallelepiped shape, and the four corners of the periphery of the front shell 12 and the rear shell 13 are connected to the shell 11 by screws to facilitate the disassembly and assembly of the shell 1. In addition, the rectangular parallelepiped shell 11 is also convenient for the arrangement of the weighing instrument circuit board structure 1000, and the installation and distribution of the internal main board 3 and the expansion board 4, and can also reduce the molding difficulty of the shell 11 during processing and molding. In addition, the regular rectangular parallelepiped shape can also facilitate the storage and transportation of the weighing instrument circuit board. Of course, in the actual manufacturing and use process, the shell 11 can also be cylindrical or other shapes, which are not specifically limited here.

[0040] In an optional embodiment, to facilitate the installation of the weighing instrument circuit board structure 1000, an industrial rail buckle 131 is connected to the side of the rear shell 13 facing away from the front shell 12. Figure 5 The industrial rail buckle 131 is arranged in the middle of the rear shell 13 to install the weighing instrument circuit board structure 1000 on the DIN35 rail. This rail system has a standard size of 35 mm wide and is suitable for installing various types of modular equipment, which helps to neatly organize and wire electrical equipment.

[0041] In an optional embodiment, in order to expand the function of the weighing instrument circuit board structure 1000, the expansion board 4 is provided with Profinet, Profibus-DP, Ethernet, DeviceNet, RS485 industrial bus interfaces, so that the weighing instrument circuit board structure 1000 can be connected to various devices through the corresponding interfaces for use.

[0042] The utility model also proposes a weighing instrument, which includes a weighing instrument circuit board structure and a corresponding connecting cable. The specific structure of the weighing instrument circuit board structure refers to the above embodiment. Since the weighing instrument adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0043] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A weighing instrument circuit board structure, characterized in that: include: A housing, the housing comprising a shell, a front shell and a rear shell, the front shell and the rear shell are respectively connected to two opposite sides of the shell, and the shell, the front shell and the rear shell enclose a mounting cavity; A display panel, the display panel is embedded in the front shell, the display panel comprises a liquid crystal display screen and a first gold finger slot, the liquid crystal display screen is arranged on a side of the display panel facing away from the rear shell, and the first gold finger slot is arranged on a side of the display panel facing the rear shell; A main board is installed in the installation cavity and electrically connected to the display panel, two ends of the main board are connected to the inner wall of the shell, and a first gold finger is provided on the main board, and the first gold finger is plugged into and matched with the first gold finger slot.

2. The weighing instrument circuit board structure according to claim 1, characterized in that: The weighing instrument circuit board structure also includes an expansion board. The main board and the expansion board are installed in the installation cavity at intervals. A second gold finger is provided on the expansion board. A second gold finger slot is also provided on the display board corresponding to the second gold finger. The second gold finger is plugged into the second gold finger slot.

3. The weighing instrument circuit board structure according to claim 2, characterized in that: The inner side wall of the shell is formed with a card slot, and the main board and the expansion board are carded in the card slot.

4. The weighing instrument circuit board structure according to claim 3, characterized in that: An inner side wall of the shell comprises at least four of the card slots, and the card slots are distributed at intervals on the inner side wall of the shell.

5. The weighing instrument circuit board structure according to any one of claims 3 to 4, characterized in that: The display panel is provided with connection holes, which are respectively arranged at the upper and lower sides of the liquid crystal display screen and are used to connect the display panel to the front shell.

6. The weighing instrument circuit board structure according to claim 5, characterized in that: The weighing instrument circuit board structure also includes a wiring terminal, which is arranged on the front shell and electrically connected to the main board.

7. The weighing instrument circuit board structure according to claim 5, characterized in that: The shell is a cylindrical structure with a rectangular cross section.

8. The weighing instrument circuit board structure according to claim 5, characterized in that: The side of the rear shell facing away from the front shell is connected with an industrial rail buckle.

9. The weighing instrument circuit board structure according to claim 5, characterized in that: The expansion board is provided with Profinet, Profibus-DP, Ethernet, DeviceNet and RS485 industrial bus interfaces.

10. A weighing meter, characterized in that: It comprises a weighing instrument circuit board structure as claimed in any one of claims 1 to 9.

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