PCB control box

Abstract

The utility model discloses a PCB control box which comprises a box body, an installation groove is arranged in the box body and used for installing a PCB, a cover plate is embedded and clamped above the box body, a limiting groove is arranged in the box body and above the installation groove, fixing grooves are respectively arranged in the box body and at two ends of the installation groove, and the fixing grooves are used for fixing the PCB. Limiting clamping blocks clamped in the limiting grooves in an embedded mode are fixedly installed at the bottom of the cover plate, a buffer plate is fixedly installed at the top of the cover plate, buffer protrusions are fixedly installed at the positions, located on the two sides of the buffer plate, of the top of the cover plate, and locking fixing pieces are installed on the fixing grooves and used for locking and fixing the cover plate and the box body. The PCB control box relates to the technical field of control boxes, and is simple in installation structure, convenient for maintenance personnel to maintain the PCB in the box body, and high in stability after installation.

Description

Technical Field

[0001] The utility model relates to the technical field of control boxes, in particular to a PCB board control box. Background Art

[0002] Air conditioners are common household appliances. Currently, the installation box for the PCB control board of an air conditioner is the electric control box. The air conditioner indoor unit is composed of many components, among which the electric control box assembly of the air conditioner indoor unit includes an electric control box and its electric control box cover that are fixed by screws. Since the air conditioner indoor unit is often disassembled and assembled during maintenance, and the electric control box and its electric control box cover are both made of plastic, it is easy for the structural parts to slip, failing to play a fixing role, and the disassembly and assembly are complicated. In addition, after installation, the electric control box is easily squeezed and collided, which can easily damage the internal PCB control board.

[0003] Therefore, we propose a PCB board control box to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a PCB board control box, which is easy to assemble and disassemble, has good anti-collision capability, and solves the existing problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a PCB board control box, including a box body, a mounting groove is provided inside the box body for installing the PCB board, a cover plate is installed on the top of the box body in an interlocking manner, a limiting groove is provided inside the box body and above the mounting groove, a fixing groove is provided inside the box body and at both ends of the mounting groove, a limiting card block is fixedly installed on the bottom of the cover plate and is interlocked and engaged in the limiting groove, a buffer plate is fixedly installed on the top of the cover plate, and buffer protrusions are fixedly installed on the top of the cover plate and on both sides of the buffer plate, and a locking fixture is installed on the fixing groove for locking and fixing the cover plate and the box body.

[0006] Preferably, the outer dimensions of the limiting block are matched with the inner dimensions of the limiting groove.

[0007] Preferably, the buffer plate is made of natural rubber.

[0008] Preferably, the number of the buffer protrusions is set to be multiple, the buffer protrusions are evenly distributed on the top of the cover plate, and the buffer protrusions are made of natural rubber.

[0009] Preferably, the locking fixture includes a screw rod fixed on the fixing groove and a threaded sleeve rotatably mounted on the bottom of the cover plate through a bearing, and the threaded sleeve is threadedly connected to the screw rod.

[0010] Preferably, a sealing sheet is placed at the installation gap between the cover plate and the box body.

[0011] Preferably, the box body is provided with through holes for connecting the PCB circuit with the outside and heat dissipation holes.

[0012] Beneficial effects

[0013] The utility model provides a PCB board control box. Compared with the existing technology, it has the following advantages:

[0014] 1. A PCB control box has an installation slot on the box body for clamping and installing the PCB board, a cover plate is arranged above the box body, a fixing slot and a limit slot are provided on the box body, a limit block is installed on the bottom of the cover plate, so that the limit block is clamped in the limit slot to achieve a closed installation of the cover plate on the top of the installation slot, a locking fixture is installed on the fixing slot, the locking fixture includes a screw, a threaded sleeve, etc., which is threadedly connected to the screw through the threaded sleeve to achieve fixation between the cover plate and the box body, thereby facilitating the cover plate to be quickly installed on the box body to fix the PCB board in the installation slot. This installation structure is simple and convenient for maintenance personnel to repair the PCB board in the box body.

[0015] 2. A PCB control box has a buffer plate and a buffer protrusion installed on the top of the cover. The buffer plate and the buffer protrusion are made of natural rubber. After the cover is installed, the soft resilience of the buffer plate and the buffer protrusion can buffer the impact force applied to the cover when the cover is squeezed or collided, thereby reducing the impact of the collision and squeezing impact force on the cover, improving the stability of the cover installation structure, and improving the fixing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a side view of the structure of the utility model;

[0018] Figure 3 It is a side sectional structural schematic diagram of the utility model.

[0019] In the figure: 1. Box body; 2. Mounting slot; 3. Cover plate; 4. Limiting slot; 5. Fixing slot; 6. Limiting block; 7. Buffer plate; 8. Buffering protrusion; 9. Locking fixture; 91. Screw; 92. Threaded sleeve; 93. Bearing. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-3 , this utility model provides two technical solutions:

[0022] Example 1:

[0023] A PCB board control box includes a box body 1, an installation groove 2 is provided inside the box body 1 for installing a PCB board, a cover plate 3 is installed on the top of the box body 1 in an interlocking manner, a limiting groove 4 is provided inside the box body 1 and above the installation groove 2, a fixing groove 5 is provided inside the box body 1 and at both ends of the installation groove 2, a limiting block 6 is fixedly installed on the bottom of the cover plate 3 and is interlocked and engaged in the limiting groove 4, a buffer plate 7 is fixedly installed on the top of the cover plate 3, and buffer protrusions 8 are fixedly installed on the top of the cover plate 3 and on both sides of the buffer plate 7, and a locking fixture 9 is installed on the fixing groove 5 for locking and fixing the cover plate 3 and the box body 1.

[0024] Example 2:

[0025] A PCB board control box includes a box body 1, an installation groove 2 is provided inside the box body 1 for installing a PCB board, a cover plate 3 is installed on the top of the box body 1 in an interlocking manner, a limiting groove 4 is provided inside the box body 1 and above the installation groove 2, a fixing groove 5 is provided inside the box body 1 and at both ends of the installation groove 2, a limiting block 6 is fixedly installed on the bottom of the cover plate 3 and is interlocked and engaged in the limiting groove 4, a buffer plate 7 is fixedly installed on the top of the cover plate 3, and buffer protrusions 8 are fixedly installed on the top of the cover plate 3 and on both sides of the buffer plate 7, and a locking fixture 9 is installed on the fixing groove 5 for locking and fixing the cover plate 3 and the box body 1.

[0026] In this embodiment, the outer dimensions of the limit card block 6 are adapted to the inner dimensions of the limit groove 4, and the limit card block 6 is clamped in the limit groove 4 to realize the closed installation of the cover plate 3 on the top of the installation groove 2; the buffer plate 7 is made of natural rubber material, and the number of buffer protrusions 8 is set to multiple, and the buffer protrusions 8 are evenly distributed on the top of the cover plate 3. The buffer protrusions 8 are made of natural rubber material. After the cover plate 3 is installed, the soft resilience of the buffer plate 7 and the buffer protrusions 8 can buffer the impact force exerted on the cover plate 3 when the cover plate 3 is squeezed and collided, thereby reducing the influence of the collision and extrusion impact force on the cover plate 3, improving the stability of the installation structure of the cover plate 3, and improving the fixing effect; locking The fixing part 9 includes a screw 91 fixed on the fixing groove 5 and a threaded sleeve 92 rotatably mounted on the bottom of the cover plate 3 through a bearing 93. The threaded sleeve 92 is threadedly connected to the screw 91 and is threadedly connected to the screw 91 through the threaded sleeve 92 to achieve fixation between the cover plate 3 and the box body 1, thereby facilitating the cover plate 3 to be quickly installed on the box body 1 to fix the PCB board in the mounting groove 2; a sealing sheet is placed in the installation gap between the cover plate 3 and the box body 1 to increase the sealing performance of the cover plate 3 and the box body 1 after installation and reduce the impact of dust and moisture entering the PCB board; the box body 1 is provided with through holes for connecting the PCB board circuit with the outside and heat dissipation holes, and the heat dissipation holes are used for heat dissipation of the PCB board.

[0027] When the PCB control box is used, a mounting groove 2 is provided on the box body 1 for clamping and installing the PCB board, a cover plate 3 is provided on the top of the box body 1, a fixing groove 5 and a limit groove 4 are provided on the box body 1, and a limit block 6 is installed on the bottom of the cover plate 3, so that the limit block 6 is clamped in the limit groove 4 to achieve the closed installation of the cover plate 3 on the top of the mounting groove 2, and a locking fixture 9 is installed on the fixing groove 5. The locking fixture 9 includes a screw 91, a threaded sleeve 92, etc. The threaded sleeve 92 is threadedly connected to the screw 91 to achieve the fixation between the cover plate 3 and the box body 1, thereby facilitating the quick installation of the cover plate 3. It is installed on the box body 1 to fix the PCB board in the installation groove 2. This installation structure is simple and convenient for maintenance personnel to repair the PCB board in the box body 1. In addition, a buffer plate 7 and a buffer protrusion 8 are installed on the top of the cover plate 3 of the utility model. The buffer plate 7 and the buffer protrusion 8 are made of natural rubber. After the cover plate 3 is installed, the soft resilience of the buffer plate 7 and the buffer protrusion 8 can buffer the impact force exerted on the cover plate 3 when the cover plate 3 is squeezed or collided, thereby reducing the influence of the collision and extrusion impact force on the cover plate 3, improving the stability of the installation structure of the cover plate 3, and improving the fixing effect.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB board control box, comprising a box body (1), characterized in that: The box body (1) is provided with a mounting groove (2) for mounting a PCB board, a cover plate (3) is mounted on the top of the box body (1) in a lockable manner, a limiting groove (4) is provided on the inside of the box body (1) and located above the mounting groove (2), fixing grooves (5) are provided on the inside of the box body (1) and located at both ends of the mounting groove (2), a limiting block (6) is fixedly mounted on the bottom of the cover plate (3) and is lockable in the limiting groove (4), a buffer plate (7) is fixedly mounted on the top of the cover plate (3), buffer protrusions (8) are fixedly mounted on the top of the cover plate (3) and located on both sides of the buffer plate (7), and a locking fixture (9) is mounted on the fixing groove (5) for locking and fixing the cover plate (3) and the box body (1).

2. A PCB board control box according to claim 1, characterized in that: The outer dimensions of the limiting block (6) are matched with the inner dimensions of the limiting groove (4).

3. A PCB board control box according to claim 1, characterized in that: The buffer plate (7) is made of natural rubber.

4. A PCB board control box according to claim 1, characterized in that: The number of the buffer protrusions (8) is set to be multiple, the buffer protrusions (8) are evenly distributed on the top of the cover plate (3), and the buffer protrusions (8) are made of natural rubber.

5. A PCB board control box according to claim 1, characterized in that: The locking fixture (9) comprises a screw rod (91) fixed on the fixing groove (5) and a threaded sleeve (92) rotatably mounted on the bottom of the cover plate (3) via a bearing (93), wherein the threaded sleeve (92) is threadedly connected to the screw rod (91).

6. A PCB board control box according to claim 1, characterized in that: A sealing sheet is placed at the installation gap between the cover plate (3) and the box body (1).

7. A PCB board control box according to claim 1, characterized in that: The box body (1) is provided with through holes for connecting the PCB circuit with the outside and heat dissipation holes.

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