Electric control box installation assembly

Abstract

The utility model discloses an electric control box installation assembly in the technical field of air conditioning equipment, which comprises a circuit board, a bottom shell and a top cover, the bottom shell is provided with a concave cavity, the circuit board is arranged in the concave cavity, the top cover covers the concave cavity of the bottom shell, a first clamping piece is arranged on the front side in the concave cavity, and a second clamping piece is arranged on the rear side in the concave cavity. At least one of the first clamping piece and the second clamping piece has certain elasticity, the first clamping piece abuts against the front side of the circuit board, the second clamping piece abuts against the rear side of the circuit board, the freedom degree of the circuit board in the front-back direction is limited, at least one of the left side and the right side in the cavity is provided with a limiting piece, the limiting piece is provided with a limiting groove, and the circuit board is arranged in the limiting groove. The limiting piece limits the freedom degree of the circuit board in the vertical direction. The electric control box installation assembly solves the technical problems that when an existing electric control box installation assembly is used, the circuit board is fixed to the inner shell through screws, the layout freedom degree of the circuit board is limited by reserved screw hole positions of the circuit board, and the difficulty and complexity of circuit design are increased.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, in particular to an electric control box installation component. Background Art

[0002] The electric control box in an air conditioner is one of the core components of the air conditioning system. The circuit board fixed inside it contains complex electronic circuits and microprocessors, which are used to receive user instructions, process signals, and control the operating state of the air conditioner.

[0003] The utility model with the authorization announcement number CN208154734U discloses an air conditioner electric control box, which includes a housing, an inner housing, and a circuit board. The circuit board is installed in the cavity of the inner housing, and the housing wraps outside the inner housing. The housing includes a detachable upper housing cover and a bottom housing, and the inner housing includes a detachable upper inner housing cover and a bottom inner housing. At least one screw post is provided on the installation surface of the bottom inner housing, and the circuit board is connected to the bottom inner housing through screws. A convex bump protruding outward is provided at the position corresponding to the screw post on the bottom housing.

[0004] This circuit board installation method uses the design of fixing the circuit board to the inner housing with screws. Although it can ensure the stability of the circuit board, it also brings a series of problems. First of all, in order to cooperate with the screw fixation, the circuit board needs to reserve screw hole positions, which undoubtedly limits the layout freedom of the circuit board and increases the difficulty and complexity of circuit design. Secondly, the existence of screw holes not only occupies valuable circuit board space, but the screws may also interfere with circuit signals and affect circuit performance. Summary of the Utility Model

[0005] The utility model provides an electric control box installation component, aiming to solve the technical problem that when the existing electric control box installation component is used, the circuit board is fixed to the inner housing with screws, and the circuit board needs to reserve screw hole positions, which limits the layout freedom of the circuit board and increases the difficulty and complexity of circuit design.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0007] The electric control box installation component includes a circuit board, a bottom shell, and a top cover. The bottom shell has a concave cavity, the circuit board is arranged in the concave cavity, the top cover covers the concave cavity of the bottom shell. A first clamping member is arranged on the front side inside the concave cavity, and a second clamping member is arranged on the rear side inside the concave cavity. At least one of the first clamping member and the second clamping member has a certain elasticity. The first clamping member abuts against the front side of the circuit board, and the second clamping member abuts against the rear side of the circuit board, restricting the freedom degree of the circuit board in the front-rear direction. At least one side of the left side and the right side inside the concave cavity is provided with a limiting member. The limiting member has a limiting groove, and the circuit board is arranged in the limiting groove. The limiting member restricts the freedom degree of the circuit board in the up-down direction.

[0008] Furthermore, the left and right sides of the concave cavity are respectively provided with limiting members, the limiting members include an upper stopper and a lower stopper, and there is a gap between the upper and lower stoppers, and the gap is the limiting groove.

[0009] Furthermore, the first clamp has a certain elasticity, and the first clamp includes a fixing portion and a clamping portion, the fixing portion is fixedly arranged on the side wall of the cavity, the clamping portion is arranged at one end of the fixing portion away from the side wall of the cavity, the clamping portion is a protrusion extending toward the side of the side wall of the cavity where the fixing portion is located, and the extended distal end of the protrusion is provided with a first clamping protrusion extending perpendicularly to the protrusion, and the first clamping protrusion abuts against the circuit board.

[0010] Furthermore, the first clamping protrusion extends toward the bottom of the cavity, and a handle is provided on the protrusion, and the handle is located on a side of the protrusion opposite to the first clamping protrusion.

[0011] Furthermore, the fixing portion is a semi-enclosing frame with two open ends, the two open ends are fixedly connected to the side walls of the cavity, and the engaging portion is arranged in a hollow area formed by the fixing portion and the side walls of the cavity.

[0012] Furthermore, the second clamping member is a rigid component, which is a protrusion extending from the bottom of the cavity to the top opening of the cavity, and the extended far end of the protrusion is provided with a second clamping protrusion extending perpendicularly to the protrusion and pointing to one side of the first clamping member, the second clamping protrusion contacts the upper surface of the circuit board, and the protrusion abuts against the back side of the circuit board.

[0013] Furthermore, at least one supporting column is provided at the bottom of the cavity, and when the circuit board is installed in the cavity, the height of the supporting column is equal to the distance between the circuit board and the bottom of the cavity.

[0014] The beneficial effects of the utility model are:

[0015] 1. The circuit board is fixed by using the first clamp and the second clamp (at least one of which is elastic) and the limit groove of the limit member. The first clamp and the second clamp respectively press against the front and rear sides of the circuit board, and the limit member limits the up and down movement of the circuit board through the limit groove, which together limit the unnecessary displacement of the circuit board in three dimensions. This design does not require preset screw holes on the circuit board, greatly releases the space limitation of the circuit board layout, improves the design flexibility and simplifies the circuit design process. Eliminating the screw holes reduces the occupation of the precious space of the circuit board, and at the same time eliminates the electromagnetic interference problem that may be caused by the screws, which is conducive to improving the signal transmission quality and overall electrical performance of the circuit board.

[0016] 2. Double-sided limiter design: By setting limiters (upper stopper and lower stopper) on the left and right sides of the cavity, a limiter groove that accurately matches the thickness of the circuit board is formed, which further improves the vertical fixation stability of the circuit board and avoids the possibility of the circuit board shaking up and down.

[0017] 3. Elastic first clip structure: The first clip is specially designed with a fixing part and a clamping part. The elastic protrusions of the clamping part can flexibly adapt to the installation of the circuit board. The first convex directly contacts the circuit board, ensuring reliable positioning and facilitating the assembly and disassembly of the circuit board.

[0018] 4. Design of the handle: A handle is set on the protrusion, which makes it easier for the operator to apply force during installation or maintenance, improves work efficiency, and reduces the risk of accidental damage to the circuit board or components.

[0019] 5. Semi-surrounding structure of the fixing part: The special design of the fixing part not only enhances the connection stability between the first clip and the side wall of the concave cavity, but also provides a stable base for the clamping part, ensuring the durability and reliability of the overall structure.

[0020] 6. Adoption of the rigid second clip: Complementary to the elastic design of the first clip, the rigid second clip extends upward from the bottom of the concave cavity in the form of a convex block. Its second convex directly acts on the upper surface of the circuit board, increasing the firmness of the circuit board fixation and ensuring the stability during long-term use.

[0021] 7. Precise support design: The support columns configured at the bottom of the concave cavity precisely match the bottom of the circuit board, ensuring that the circuit board maintains a constant distance from the bottom of the concave cavity after installation, preventing the deformation of the circuit board caused by improper pressure, providing necessary support for the circuit board, and optimizing the heat dissipation performance.

[0022] Combining the above features, the installation component of the electric control box of the utility model, through a series of delicate designs, not only overcomes the limitations of the traditional screw fixing method, but also brings multiple benefits such as increased freedom in circuit board layout design, performance optimization, easy assembly, and enhanced stability, which has important practical significance for the upgrade and optimization of the air conditioner electric control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a cross-sectional view of the installation component of the electric control box;

[0024] Figure 2 is a schematic structural view of the installation component of the electric control box;

[0025] Figure 3 is Figure 2 a partial enlarged view of A in

[0026] Figure 4 is a top view of the installation component of the electric control box;

[0027] In the figure, the markings are as follows: 1 - circuit board, 2 - bottom case, 3 - concave cavity, 4 - first clamping member, 41 - fixing portion, 42 - engaging portion, 43 - first clamping protrusion, 44 - handle, 5 - second clamping member, 51 - second clamping protrusion, 6 - limiting member, 61 - upper stop block, 62 - lower stop block, 7 - support column. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present application more clearly expressed, the following further describes the present utility model with reference to the accompanying drawings.

[0029] First, it should be stated that the clear and complete description of the technical solutions of the embodiments of the present application is of the embodiments of the present application, rather than a limitation on the present utility model. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.

[0030] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the indicated device or element must have a specific orientation structure and operation. Therefore, it should not be construed as a limitation on the present utility model.

[0031] It should be noted that in the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral body: it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Refer to Figures 1 to 4 , the present utility model provides an electric control box installation assembly.

[0033] The electric control box installation component includes a circuit board 1, a bottom case 2 and a top cover. The bottom case 2 has a concave cavity 3. The circuit board 1 is arranged in the concave cavity 3. The top cover covers the concave cavity 3 of the bottom case 2. A first clamping member 4 is arranged on the front side inside the concave cavity 3, and a second clamping member 5 is arranged on the rear side inside the concave cavity 3. At least one of the first clamping member 4 and the second clamping member 5 has a certain elasticity. The first clamping member 4 abuts against the front side of the circuit board 1, and the second clamping member 5 abuts against the rear side of the circuit board 1, restricting the freedom degree of the circuit board 1 in the front-rear direction. At least one side of the left side and the right side inside the concave cavity 3 is provided with a limiting member 6. The limiting member 6 has a limiting groove, and the circuit board 1 is arranged in the limiting groove. The limiting member 6 restricts the freedom degree of the circuit board 1 in the up-down direction.

[0034] The working process of installing the circuit board 1 into the electric control box is as follows: Insert the circuit board 1 into the limiting groove. As it goes deeper, when the rear side of the circuit board 1 abuts against the second clamping member 5, pull the first clamping member 4. When the circuit board 1 reaches the pre-installed position, rely on the elastic deformation restoring force of the first clamping member 4 to abut against the front side of the circuit board 1, thereby realizing the fixation of the circuit board 1.

[0035] Regarding the top cover covering the concave cavity 3 of the bottom case 2, the top cover can cover the open mouth of the concave cavity 3, or can cover a position where the open mouth of the concave cavity 3 moves a certain distance towards the bottom of the concave cavity 3. Here, there is no special limitation on the specific depth position where the top cover covers the concave cavity 3, as long as it covers the concave cavity 3 and can cover the circuit board 1.

[0036] At least one of the first clamping member 4 and the second clamping member 5 has a certain elasticity. It can be that both have a certain elasticity, or the first clamping member 4 is an elastic member and the second clamping member 5 is a rigid member, or the first clamping member 4 is a rigid member and the second clamping member 5 is an elastic member. Regarding having a certain elasticity, those skilled in the art should, according to the material situation, make it capable of elastic deformation and be able to clamp the circuit board 1. Those skilled in the art should be able to make an adaptive selection of the elasticity of the first clamping member 4 or the second clamping member 5 according to the actual use situation. Therefore, having a certain elasticity should be clearly described.

[0037] The first clamping member 4 and the second clamping member 5 can both be protrusions with a certain elasticity; they can also both be clamping protrusions with a certain elasticity and a fixing structure for installing the clamping protrusions; or one of them can be a protrusion and the other can be a clamping protrusion and a fixing structure for installing the clamping protrusion. The first clamping member 4 and the second clamping member 5 can also be selectively elastic, and the other one is a rigid component.

[0038] Regarding the limiting groove, it can be a groove opened on a component, or it can be a gap between two components forming a groove. There is no special limitation here, as long as the formed groove can restrict the freedom degree of the circuit board 1 in the up-down direction.

[0039] In some embodiments, a limit member 6 is provided on the left and right sides of the cavity 3, respectively. The limit member 6 includes an upper stop block 61 and a lower stop block 62. There is a gap between the upper stop block 61 and the lower stop block 62, and the gap is a limit groove.

[0040] In some embodiments, the first clamping member 4 has a certain elasticity, and the first clamping member 4 includes a fixing portion 41 and a clamping portion 42. The fixing portion 41 is fixedly arranged on the side wall of the cavity 3, and the clamping portion 42 is arranged at an end of the fixing portion 41 away from the side wall of the cavity 3. The clamping portion 42 is a protrusion extending toward the side of the side wall of the cavity 3 where the fixing portion 41 is located. The extended distal end of the protrusion is provided with a first clamping protrusion 43 extending perpendicularly to the protrusion, and the first clamping protrusion 43 abuts against the circuit board 1.

[0041] The fixing portion 41 can be a boss base, a strip-shaped protrusion, or a semi-enclosed frame with two open ends. The shape of the fixing portion 41 is not particularly limited here, as long as it can be fixed on the side wall of the cavity 3, provide a mounting base for the locking portion 42 and can work normally.

[0042] In some embodiments, the first clamping protrusion 43 extends toward the bottom of the cavity 3, and a handle 44 is provided on the protrusion, and the handle 44 is located on the side of the protrusion opposite to the first clamping protrusion 43. Providing the handle 44 on the protrusion makes it easier for operators to apply force during installation or maintenance, improves work efficiency, and reduces the risk of accidental damage to the circuit board 1 or components.

[0043] In some embodiments, the fixing portion 41 is a semi-enclosing frame with two open ends, the two open ends are fixedly connected to the side wall of the cavity 3, and the clamping portion 42 is arranged in a hollow area formed by the fixing portion 41 and the side wall of the cavity 3. The special design of the fixing portion 41 not only enhances the connection stability between the first clamping member 4 and the side wall of the cavity 3, but also provides a stable base for the clamping portion 42, ensuring the durability and reliability of the overall structure.

[0044] In some embodiments, the second clamping member 5 is a rigid component, and the second clamping member 5 is a convex block extending from the bottom of the cavity 3 to the top opening of the cavity 3, and the extended distal end of the convex block is provided with a second clamping protrusion 51 extending perpendicularly to the convex block and pointing to one side of the first clamping member 4, and the second clamping protrusion 51 contacts the upper surface of the circuit board 1, and the convex block abuts against the rear side of the circuit board 1. The second clamping protrusion 51 further limits the freedom of the circuit board 1 in the upward direction.

[0045] In some embodiments, at least one support pillar 7 is provided at the bottom of the cavity 3. When the circuit board 1 is installed in the cavity 3, the height of the support pillar 7 is equal to the distance between the circuit board 1 and the bottom of the cavity 3. The number of the support pillars 7 is not particularly limited here and can be 1, 2, 3... This ensures that the circuit board 1 maintains a constant distance from the bottom of the cavity 3 after installation, preventing the deformation of the circuit board 1 caused by improper pressure and providing necessary support for the circuit board 1, thus optimizing the heat dissipation performance.

Claims

1. An electric control box mounting assembly, comprising a circuit board (1), a bottom shell (2) and a top cover, wherein the bottom shell (2) has a concave cavity (3), the circuit board (1) is arranged in the concave cavity (3), and the top cover covers the concave cavity (3) of the bottom shell (2), wherein the characteristics are: A first clamping member (4) is arranged on the front side of the concave cavity (3), and a second clamping member (5) is arranged on the rear side of the concave cavity (3); at least one of the first clamping member (4) and the second clamping member (5) has a certain elasticity; the first clamping member (4) abuts against the front side of the circuit board (1), and the second clamping member (5) abuts against the rear side of the circuit board (1), thereby limiting the degree of freedom of the circuit board (1) in the front-to-back direction; a limiting member (6) is arranged on at least one of the left and right sides of the concave cavity (3); the limiting member (6) has a limiting groove; the circuit board (1) is arranged in the limiting groove; and the limiting member (6) limits the degree of freedom of the circuit board (1) in the up-down direction.

2. The electric control box mounting assembly according to claim 1, characterized in that: A limiting member (6) is provided on the left and right sides of the concave cavity (3), respectively. The limiting member (6) comprises an upper stopper (61) and a lower stopper (62). There is a gap between the upper stopper (61) and the lower stopper (62), and the gap is a limiting groove.

3. The electric control box mounting assembly according to claim 1, characterized in that: The first clamping member (4) has a certain elasticity. The first clamping member (4) comprises a fixing portion (41) and a clamping portion (42). The fixing portion (41) is fixedly arranged on the side wall of the cavity (3). The clamping portion (42) is arranged at one end of the fixing portion (41) away from the side wall of the cavity (3). The clamping portion (42) is a protrusion extending toward the side of the side wall of the cavity (3) where the fixing portion (41) is located. A first clamping protrusion (43) extending perpendicularly to the protrusion is arranged at the extended distal end of the protrusion. The first clamping protrusion (43) abuts against the circuit board (1).

4. The electric control box mounting assembly according to claim 3, characterized in that: The first locking protrusion (43) extends toward the bottom of the cavity (3), and a handle (44) is provided on the protrusion. The handle (44) is located on a side of the protrusion opposite to the first locking protrusion (43).

5. The electric control box mounting assembly according to claim 3, characterized in that: The fixing portion (41) is a semi-enclosing frame having two open ends, the two open ends are fixedly connected to the side walls of the cavity (3), and the engaging portion (42) is arranged in a hollow area formed by the fixing portion (41) and the side walls of the cavity (3).

6. The electric control box mounting assembly according to claim 3, characterized in that: The second clamping member (5) is a rigid component, and is a protrusion extending from the bottom of the cavity (3) to the top opening of the cavity (3). The extended distal end of the protrusion is provided with a second clamping protrusion (51) extending perpendicularly to the protrusion and pointing to one side of the first clamping member (4). The second clamping protrusion (51) contacts the upper surface of the circuit board (1), and the protrusion abuts against the rear side of the circuit board (1).

7. The electric control box mounting assembly according to any one of claims 1 to 6, characterized in that: At least one supporting column (7) is arranged at the bottom of the cavity (3); when the circuit board (1) is installed in the cavity (3), the height of the supporting column (7) is equal to the distance between the circuit board (1) and the bottom of the cavity (3).

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