PCB mounting structure of cleaning machine

Abstract

The utility model provides a PCB mounting structure of a cleaning machine, and belongs to the technical field of high-pressure cleaning machines. The problem that the installation position of a PCB on a shell of an existing cleaning machine is difficult to form is solved. The PCB mounting structure of the cleaning machine comprises a shell and a PCB, the top end of the shell is provided with an inclined plane, the inclined plane is provided with a window, a panel is embedded in the window, a bottom box is arranged at the position, corresponding to the window, in the shell, the PCB is arranged in the bottom box, the panel and the bottom box are connected through screws, and the PCB is clamped and positioned through the panel and the bottom box. According to the structure, the shell, the panel and the bottom box jointly form the installation position of the PCB, the three parts can be conveniently and respectively formed to be matched with the PCB, the manufacturing difficulty is lowered, and installation of the PCB is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of cleaning machines, in particular to a PCB board mounting structure of a cleaning machine. Background Art

[0002] A high-pressure cleaning machine is a machine that uses a power device to make a high-pressure plunger pump generate high-pressure water to wash the surface of an object. It can strip and wash away dirt to achieve the purpose of cleaning the surface of the object.

[0003] On the housing of the existing high-pressure cleaning machine, a circuit board is installed. There are several buttons and several LED lights arranged on the circuit board. The buttons are used to control the start and stop of the high-pressure cleaning machine or the switching of the working mode, and the LED lights are used to display the working state of the high-pressure cleaning machine. Each button corresponds to an LED light. For the convenience of user operation and observation, the circuit board is generally installed on the inclined surface at the top of the housing. Since the housing is injection molded, an installation position for the circuit board needs to be formed inside the housing. This installation position requires inclined core pulling both externally and internally during injection molding, making the injection molding of this installation position extremely difficult and hard to manufacture. Summary of the Utility Model

[0004] The purpose of the utility model is to address the above problems existing in the prior art and propose a PCB board mounting structure for a cleaning machine. The technical problem to be solved by the utility model is: how to solve the problem of the difficult forming of the mounting position of the PCB board on the housing of the cleaning machine.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A PCB board mounting structure for a cleaning machine, including a housing and a PCB board. It is characterized in that the top of the housing has an inclined surface, a window is opened on the inclined surface, a panel is embedded in the window, a bottom box is arranged in the housing corresponding to the window, the PCB board is arranged in the bottom box, and the panel and the bottom box are connected by screws and the panel and the bottom box clamp and position the PCB board.

[0007] This structure disassembles the housing of the cleaning machine into three components: the housing, the panel, and the bottom box. Since the shape of the panel needs to be adapted to the PCB board and the components on the PCB board, the shape of the panel is irregular. The panel being a separate component is convenient for injection molding. After the panel is installed on the housing, it fits with the PCB. By using screws to connect the bottom box and the panel, the bottom box and the panel clamp the PCB board to achieve the positioning of the PCB board. And the screws connecting the bottom box and the panel also make the bottom box and the panel form a unit fixed on the housing, completing the installation of the PCB board on the inclined surface of the housing. The housing, the panel, and the bottom box in this structure jointly constitute the mounting position of the PCB board. The three components are convenient for their respective forming to adapt to the PCB board, reducing the manufacturing difficulty and facilitating the installation of the PCB board.

[0008] In the PCB board mounting structure of the above-mentioned cleaning machine, a stepped surface is provided on the inner wall of the window, and the panel has a positioning surface that abuts against the stepped surface. Through the setting of this structure, the structure in which the stepped surface abuts against the positioning surface realizes the positioning of the panel within the window.

[0009] In the PCB board mounting structure of the above-mentioned cleaning machine, a boss protruding towards the bottom box is provided on the inner surface of the panel. The end face of the boss has a protruding positioning post. A positioning protrusion that abuts against the positioning post is provided on the inner bottom surface of the bottom box. The PCB board has a mounting hole, and the positioning post is inserted into the mounting hole. The end face of the boss abuts against the upper surface of the PCB board, and the upper end face of the positioning protrusion abuts against the lower surface of the PCB board. Through the setting of this structure, the end face of the boss abuts against the upper surface of the PCB board, and the upper end face of the positioning protrusion abuts against the lower surface of the PCB board, so that the boss and the positioning protrusion clamp and position the PCB board, realizing the up and down positioning of the PCB board. The positioning post is inserted into the mounting hole to realize the horizontal positioning of the PCB board. Ensure that the PCB board is firmly installed and does not shift.

[0010] In the PCB board mounting structure of the above-mentioned cleaning machine, a mounting groove is provided on the upper surface of the panel corresponding to the position of the boss. The mounting groove extends into the boss. A through hole penetrating the positioning post is provided on the bottom surface of the mounting groove. A threaded hole is provided on the positioning protrusion. The screw is arranged in the mounting groove, and after passing through the through hole, the screw is threadedly connected to the threaded hole. Through the setting of this structure, the screw fixedly connects the positioning post and the positioning protrusion, and further realizes the fixed connection between the panel and the bottom box. The screw is located in the mounting groove, making the overall panel more beautiful.

[0011] In the PCB board mounting structure of the above-mentioned cleaning machine, an extension post is provided on the outer bottom surface of the bottom box corresponding to the position of the positioning protrusion. The threaded hole extends into the extension post. Through the setting of this structure, the depth of the threaded hole is increased, making the screw connection more stable, firm, and not easy to loosen.

[0012] In the PCB board mounting structure of the above-mentioned cleaning machine, an LED lamp is provided on the PCB board. A lamp holder that abuts against the PCB board is provided on the inner surface of the panel. A through light guide channel is provided in the lamp holder. The LED lamp is located in the light guide channel. Through the setting of this structure, structures such as the lamp holder and the light guide channel need to be formed on the panel. The panel is a separate component, which is convenient for forming, and thus reduces the manufacturing difficulty of the PCB board mounting structure.

[0013] Compared with the prior art, the PCB board mounting structure of the cleaning machine of the present utility model has the following advantages: This structure disassembles the cleaning machine housing into three components: the housing, the panel, and the bottom box. Since the shape of the panel needs to be adapted to the PCB board and the components on the PCB board, the shape of the panel is irregular. The panel being a separate component facilitates injection molding. After the panel is installed on the housing, it fits with the PCB board. The bottom box is connected to the panel by screws, clamping the PCB board between the bottom box and the panel to achieve positioning of the PCB board. And the connection of the bottom box and the panel by screws also makes the bottom box and the panel form a unit fixed on the housing, completing the installation of the PCB board on the inclined surface of the housing; The housing, the panel, and the bottom box in this structure jointly constitute the mounting position of the PCB board. The three components are convenient for individual molding to adapt to the PCB board, reducing the manufacturing difficulty and facilitating the installation of the PCB board. Brief Description of the Drawings

[0014] Figure 1 is one of the three-dimensional structure schematic diagrams of the present utility model.

[0015] Figure 2 is the second three-dimensional structure schematic diagram of the present utility model.

[0016] Figure 3 is the partial three-dimensional structure schematic diagram of the present utility model.

[0017] Figure 4 is Figure 3 the enlarged structure schematic diagram of part A in

[0018] Figure 5 is the three-dimensional structure schematic diagram of the panel of the present utility model.

[0019] Figure 6 is the cross-sectional structure schematic diagram of the present utility model.

[0020] Figure 7 is Figure 6 the enlarged structure schematic diagram of part A in

[0021] In the figures, 1. housing; 2. PCB board; 20. mounting hole; 3. inclined surface; 4. window; 40. step surface; 5. panel; 50. positioning surface; 51. boss; 52. positioning post; 53. mounting groove; 54. through hole; 55. lamp socket; 56. light guide channel; 6. bottom box; 60. positioning protrusion; 61. threaded hole; 62. extension post; 7. screw. Detailed Embodiment

[0022] The following are specific embodiments of the present utility model in combination with the accompanying drawings, further describing the technical solutions of the present utility model, but the present utility model is not limited to these embodiments.

[0023] As Figures 1 to 7As shown in the figure, the PCB board mounting structure of this cleaning machine includes a housing 1 and a PCB board 2. The top end of the housing 1 has an inclined surface 3, and a window 4 is opened on the inclined surface 3. A panel 5 is embedded in the window 4. In this embodiment, a stepped surface 40 is opened on the inner wall of the window 4, and the panel 5 has a positioning surface 50 that abuts against the stepped surface 40. A bottom box 6 is provided in the housing 1 corresponding to the window 4, the PCB board 2 is arranged in the bottom box 6, and the panel 5 and the bottom box 6 are connected by screws 7 and the panel 5 and the bottom box 6 clamp and position the PCB board 2. In this embodiment, the PCB board 2 has an LED lamp 8, the inner surface of the panel 5 has a lamp socket 55 that abuts against the PCB board 2, and the lamp socket 55 has a through light guide channel 56, and the LED lamp 8 is located in the light guide channel 56. This structure splits the cleaning machine housing into three components: the housing 1, the panel 5, and the bottom box 6. Since the shape of the panel 5 needs to be adapted to the PCB board 2 and the components on the PCB board 2, the shape of the panel 5 is irregular. The panel 5 being a separate component facilitates injection molding. After the panel 5 is installed on the housing 1, it fits with the PCB board 2. By using screws 7 to connect the bottom box 6 and the panel 5, the bottom box 6 and the panel 5 clamp the PCB board 2 to achieve the positioning of the PCB board 2, and the screws 7 connecting the bottom box 6 and the panel 5 also cause the bottom box 6 and the panel 5 to be fixed on the housing 1, completing the installation of the PCB board 2 on the inclined surface of the housing 1; the housing 1, the panel 5, and the bottom box 6 in this structure jointly constitute the installation position of the PCB board 2. The three components are convenient for each to be molded to adapt to the PCB board 2, reducing the manufacturing difficulty and facilitating the installation of the PCB board 2. Structures such as the lamp socket 55 and the light guide channel 56 need to be formed on the panel 2. The panel 5 being a separate component is convenient for molding, thereby reducing the manufacturing difficulty of the PCB board 2 mounting structure.

[0024] As Figure 6 and Figure 7 shown, the inner surface of the panel 5 has a convex platform 51 that protrudes towards the bottom box 6. The end face of the convex platform 51 has a protruding positioning post 52, and the inner bottom surface of the bottom box 6 has a positioning protrusion 60 that abuts against the positioning post 52. The PCB board 2 has a mounting hole 20, and the positioning post 52 passes through the mounting hole 20. The end face of the convex platform 51 abuts against the upper surface of the PCB board 2, and the upper end face of the positioning protrusion 60 abuts against the lower surface of the PCB board 2. The end face of the convex platform 51 abuts against the upper surface of the PCB board 2, and the upper end face of the positioning protrusion 60 abuts against the lower surface of the PCB board 2, so that the convex platform 51 and the positioning protrusion 60 clamp and position the PCB board 2 to achieve the up and down positioning of the PCB board 2, and the positioning post 52 passing through the mounting hole 20 realizes the horizontal positioning of the PCB board 2. Ensure that the PCB board 2 is firmly installed and does not shift.

[0025] As Figure 6 and Figure 7As shown, an installation groove 53 is provided on the upper surface of the panel 5 corresponding to the position of the boss 51. The installation groove 53 extends into the boss 51. A through hole 54 penetrating the positioning post 52 is provided on the bottom surface of the installation groove 53. A threaded hole 61 is provided on the positioning protrusion 60. An extension post 62 is provided on the outer bottom surface of the bottom box 6 corresponding to the position of the positioning protrusion 60. The threaded hole 61 extends into the extension post 62. The screw 7 is arranged in the installation groove 53, and the screw 7 passes through the through hole 54 and is threadedly connected to the threaded hole 61. The screw 7 fixedly connects the positioning post 52 and the positioning protrusion 60, thereby realizing the fixed connection between the panel 5 and the bottom box 6. The screw 7 is located in the installation groove 53, making the whole panel 5 more beautiful.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. The PCB board mounting structure of a cleaning machine, comprising a housing (1) and a PCB board (2), characterized in that, The top end of the housing (1) has an inclined surface (3), a window (4) is formed on the inclined surface (3), a panel (5) is embedded in the window (4), a bottom box (6) is arranged in the housing (1) corresponding to the window (4), the PCB board (2) is arranged in the bottom box (6), and the panel (5) and the bottom box (6) are connected by screws (7) and the panel (5) and the bottom box (6) clamp and position the PCB board (2).

2. The PCB board mounting structure of a cleaning machine according to claim 1, characterized in that, A stepped surface (40) is formed on the inner wall of the window (4), and the panel (5) has a positioning surface (50) that abuts against the stepped surface (40).

3. The PCB board mounting structure of a cleaning machine according to claim 1, characterized in that, The inner surface of the panel (5) has a boss (51) protruding towards the bottom box (6), the end face of the boss (51) has a protruding positioning post (52), the inner bottom surface of the bottom box (6) has a positioning protrusion (60) that abuts against the positioning post (52), the PCB board (2) has a mounting hole (20), the positioning post (52) is inserted into the mounting hole (20), the end face of the boss (51) abuts against the upper surface of the PCB board (2), and the upper end face of the positioning protrusion (60) abuts against the lower surface of the PCB board (2).

4. The PCB board mounting structure of a cleaning machine according to claim 3, characterized in that, An installation groove (53) is formed on the upper surface of the panel (5) corresponding to the position of the boss (51), the installation groove (53) extends into the boss (51), a through hole (54) penetrating the positioning post (52) is formed on the bottom surface of the installation groove (53), a threaded hole (61) is formed on the positioning protrusion (60), the screw (7) is arranged in the installation groove (53), and the screw (7) passes through the through hole (54) and is threadedly connected to the threaded hole (61).

5. The PCB board mounting structure of a cleaning machine according to claim 4, characterized in that, An extension post (62) is provided on the outer bottom surface of the bottom box (6) corresponding to the position of the positioning protrusion (60), and the threaded hole (61) extends into the extension post (62).

6. The PCB board mounting structure of a cleaning machine according to any one of claims 1 to 5, characterized in that, The PCB board (2) has an LED lamp (8), the inner surface of the panel (5) has a lamp socket (55) that abuts against the PCB board (2), the lamp socket (55) has a through light guide channel (56), and the LED lamp (8) is located in the light guide channel (56).

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