Waterproof instrument circuit board

Abstract

The utility model discloses a waterproof instrument circuit board, which relates to the technical field of instrument circuit boards and comprises a fixing frame and an instrument circuit board body, a supporting seat is arranged on the inner wall of the fixing frame, a drying box is arranged between the top of the supporting seat and the instrument circuit board body, a drying agent is arranged in the drying box, and a hollow clamping plate is mounted at the top of the drying box. Clamping grooves are formed in the two side walls of the drying box, a dismounting and mounting assembly for fixing the clamping grooves is arranged in the supporting base and comprises two sets of sliding plates connected to the top of the supporting base in a sliding mode, and clamping blocks connected with the clamping grooves are installed on the inner side faces of the sliding plates. Through the effect of the drying agent in the drying box, water vapor in air can be absorbed, the probability that the water vapor is attached to the instrument circuit board is reduced, the waterproof performance of the instrument circuit board is improved, the clamping blocks on the sliding plate can be connected with or separated from the clamping grooves formed in the outer wall of the drying box through the disassembling and assembling assembly, and the drying effect is improved. The drying box and the supporting seat can be quickly disassembled and assembled, and a drying agent in the drying box can be conveniently replaced.

Description

Technical Field

[0001] This utility model relates to the field of instrument circuit board technology, specifically a waterproof instrument circuit board. Background Technology

[0002] Instrument circuit boards are core components of various instruments and meters, responsible for signal acquisition, data processing, and display control. They are typically composed of multi-layered PCBs, integrating microprocessors, ADC / DAC converters, sensor interfaces, communication modules (such as RS485 and CAN bus), and power management units. Their design must balance interference immunity and stability, and their operating temperature range is often -40℃ to 85℃.

[0003] When existing instrument circuit boards are installed in equipment, they are usually protected by an external casing. However, there are still gaps between the casing and the instrument circuit board, and moisture in the air can easily enter the casing through these gaps. The existing instrument circuit boards are not waterproof, and moisture can easily damage them, resulting in a short service life. Therefore, based on actual usage, we have improved the above-mentioned existing technology. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A waterproof instrument circuit board includes a mounting bracket and an instrument circuit board body. The inner wall of the mounting bracket is provided with a support base, and a drying box is provided between the top of the support base and the instrument circuit board body. The drying box contains a desiccant, and a perforated card plate is installed on the top of the drying box. The two side walls of the drying box are provided with slots, and the support base is provided with a disassembly and assembly component for fixing the slots.

[0008] The assembly and disassembly components include two sets of sliding plates that are slidably connected to the top of the support base, with locking blocks that connect to the slots installed on the inner side of the sliding plates.

[0009] Furthermore, the assembly and disassembly components also include cavities at both ends of the inner cavity of the support base, each cavity having a sliding component slidably connected therein, and the top of the sliding component being fixedly connected to the bottom of the slide plate.

[0010] Furthermore, a telescopic rod is connected between the outer wall of the sliding component and the outer inner wall of the cavity, and a damping spring is sleeved on the outer wall of the telescopic rod.

[0011] Furthermore: both ends of the top wall of the support base are provided with upper slots that connect to the cavity, and the upper slots are slidably connected to the slide plate; both ends of the bottom wall of the support base are provided with lower slots that connect to the cavity, and an operating slider is slidably connected in the lower slot, and the top of the operating slider is fixedly connected to the bottom of the slide plate.

[0012] Furthermore, both ends of the bottom wall of the mounting bracket are equipped with threaded fastening screws.

[0013] Furthermore: the perforated cardboard and the drying box are designed to be snapped together.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes the desiccant inside the drying box to absorb moisture from the air, reducing the probability of moisture adhering to the instrument circuit board, improving the waterproof performance of the instrument circuit board, and extending its service life. By sliding the sliding component in the lower slot within the disassembly and assembly assembly, the sliding component and slide plate can be moved. With the elasticity of the telescopic rod and damping spring, the locking block on the slide plate can connect or disengage with the locking slot on the outer wall of the drying box, realizing quick disassembly and assembly of the drying box and support base, and facilitating the replacement of the desiccant inside the drying box.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a frontal sectional view of the present invention.

[0021] Figure 3For the present utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Fixing bracket; 2. Fastening screw; 3. Instrument circuit board body; 4. Support base; 5. Drying box; 6. Assembly / disassembly assembly; 600. Cavity; 601. Telescopic rod; 602. Damping spring; 603. Sliding component; 604. Slide plate; 605. Locking block; 606. Upper slot; 607. Lower slot; 608. Operating sliding component; 7. Desiccant; 8. Hollowed-out locking plate; 9. Locking groove. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0027] Please see Figure 1-3This utility model provides a technical solution: a waterproof instrument circuit board, including a fixing frame 1 and an instrument circuit board body 3. The inner wall of the fixing frame 1 is provided with a support base 4, and a drying box 5 is provided between the top of the support base 4 and the instrument circuit board body 3. The drying box 5 contains a desiccant 7, and a hollow card plate 8 is installed on the top of the drying box 5. The two side walls of the drying box 5 are provided with slots 9. The support base 4 is provided with a disassembly and assembly component 6 for fixing the slots 9. The instrument circuit board body 3 is an existing component, and its specific model and working principle will not be described here. The instrument circuit board body 3 is installed on the fixing frame 1, and the fixing frame 1 can be used to install the instrument circuit board body 3 inside the housing of the equipment. Through the action of the desiccant 7 in the drying box 5, moisture in the air can be absorbed, reducing the probability of moisture adhering to the instrument circuit board, improving the waterproof performance of the instrument circuit board, and extending its service life.

[0028] The disassembly and assembly component 6 includes two sets of sliding plates 604 slidably connected to the top of the support base 4. The inner side of the sliding plate 604 is equipped with a locking block 605 that connects to the locking slot 9. Through the action of the disassembly and assembly component 6, the locking block 605 on the sliding plate 604 can connect or disconnect from the locking slot 9 opened on the outer wall of the drying box 5, realizing the quick disassembly and assembly of the drying box 5 and the support base 4, which facilitates the replacement of the desiccant 7 inside the drying box 5.

[0029] Preferably, the disassembly and assembly component 6 further includes cavities 600 formed at both ends of the inner cavity of the support base 4. Each cavity 600 is slidably connected to a sliding member 603, and the top of the sliding member 603 is fixedly connected to the bottom of the slide plate 604. The slide plate 604 and the locking block 605 are fixedly connected, and the slide plate 604 and the locking block 605 can be moved by the movement of the sliding member 603.

[0030] Preferably, a telescopic rod 601 is connected between the outer wall of the sliding member 603 and the outer inner wall of the cavity 600, and a damping spring 602 is sleeved on the outer wall of the telescopic rod 601; the two ends of the telescopic rod 601 are fixedly connected to the outer wall of the sliding member 603 and the inner wall of the cavity 600, respectively.

[0031] Preferably, both ends of the top wall of the support base 4 are provided with upper slots 606 that communicate with the cavity 600, and the upper slots 606 are slidably connected to the slide plate 604. Both ends of the bottom wall of the support base 4 are provided with lower slots 607 that communicate with the cavity 600. An operating slider 608 is slidably connected in the lower slot 607, and the top of the operating slider 608 is fixedly connected to the bottom of the slide plate 604.

[0032] When the support base 4 and the drying box 5 are installed, the operating slider 608 moves outward in the lower slot 607. At this time, the telescopic rod 601 and the damping spring 602 are in a compressed state, and the sliding plate 604 and the locking block 605 are close to the inner wall of the fixing frame 1. Then, the drying box 5 is placed on the support base 4, so that the locking slots 9 on both sides of the drying box 5 are aligned with the locking block 605. Then, the operating slider 608 is released, and the compressed telescopic rod 601 and the damping spring 602 automatically return to their original positions, so that the slider 603 moves towards one side of the drying box 5. The slider 603 drives the sliding plate 604 to slide in the upper slot 606 until the locking block 605 is connected with the locking slot 9, thus completing the installation and fixing of the drying box 5 and the support base 4.

[0033] Preferably, both ends of the bottom wall of the fixing frame 1 are provided with threaded fastening screws 2; there are four sets of fastening screws 2, and the fixing frame 1 can be installed inside the equipment through the four sets of fastening screws 2. Example

[0034] Reference Figure 2 The difference between this embodiment and the first embodiment is that the perforated card plate 8 and the drying box 5 are snap-fitted together; the snap-fit ​​perforated card plate 8 can be easily disassembled and assembled, which further facilitates the replacement of the desiccant 7 inside the drying box 5.

[0035] It should be noted that the electrical component of this utility model is used to organize the wire harness during operation, and will not cause the wire harness to become tangled.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A waterproof type instrument circuit board comprising a fixing frame (1) and an instrument circuit board body (3), characterized in that: The inner wall of the fixed frame (1) is provided with a support base (4), and a drying box (5) is provided between the top of the support base (4) and the instrument circuit board body (3). The drying box (5) is provided with a desiccant (7), and a hollow card plate (8) is installed on the top of the drying box (5). The two side walls of the drying box (5) are provided with slots (9), and the support base (4) is provided with a disassembly and assembly component (6) for fixing the slots (9). The assembly (6) includes two sets of sliding plates (604) slidably connected to the top of the support base (4), and the inner side of the sliding plate (604) is equipped with a locking block (605) connected to the locking slot (9).

2. The waterproof meter circuit board according to claim 1, characterized in that: The disassembly and assembly assembly (6) also includes cavities (600) opened at both ends of the inner cavity of the support base (4). Each set of cavities (600) is slidably connected to a sliding member (603), and the top of the sliding member (603) is fixedly connected to the bottom of the slide plate (604).

3. The waterproof meter circuit board according to claim 2, characterized in that: A telescopic rod (601) is connected between the outer wall of the sliding member (603) and the outer inner wall of the cavity (600), and a damping spring (602) is sleeved on the outer wall of the telescopic rod (601).

4. The waterproof meter circuit board according to claim 2, characterized in that: The support base (4) has upper slots (606) at both ends of the top wall that communicate with the cavity (600), and the upper slots (606) are slidably connected to the slide plate (604). The support base (4) has lower slots (607) at both ends of the bottom wall that communicate with the cavity (600), and an operating slider (608) is slidably connected in the lower slot (607), and the top of the operating slider (608) is fixedly connected to the bottom of the slide plate (604).

5. The waterproof instrument circuit board according to claim 1, characterized in that: Both ends of the bottom wall of the fixing frame (1) are provided with threaded fastening screws (2).

6. The waterproof instrument circuit board according to claim 1, characterized in that: The perforated cardboard (8) and the drying box (5) are snap-fitted together.

Images