Split housing structure of circuit board

Abstract

This application relates to the technical field of electrical devices and provides a split housing structure for a circuit board. It includes a housing, which consists of a first half-shell and a second half-shell. The first half-shell includes a bottom plate, a connecting plate, and two first side plates. The two first side plates are fixed on opposite sides of the bottom plate, the connecting plate is fixed on the opposite sides of the first side plates, and the cross-section formed by enclosing the first side plates and the bottom plate is in a U-shaped. The second half-shell includes a panel and two second side plates. The two second side plates are fixed on opposite sides of the panel. The second side plates are opposite to the connecting plate, the bottom plate and the panel are opposite, and the second side plates are provided with fasteners detachably connected to the connecting plate. The cross-section formed by enclosing the second side plates and the panel is in a U-shaped, and the first half-shell and the second half-shell enclose a housing with an internal cavity. Based on this, it can achieve the effect of reducing the limitation of the housing on the installation of the circuit board and electrical components and improving the installation efficiency of the circuit board and electrical components in the housing.

Description

Technical Field

[0001] This application relates to the technical field of electrical devices, and particularly to a split housing structure for a circuit board. Background Art

[0002] Currently, some devices often require control cabinets. A control cabinet generally includes a housing, a circuit board, and some electrical components. The circuit board is installed inside the housing, and the electrical components are arranged on the circuit board. The housing is used to protect the circuit board and also plays a role in shielding and grounding. The housing generally includes a frame and a panel. One side of the frame is provided with an opening. After the circuit board is installed at the bottom of the frame from the opening, the opening of the frame is then covered.

[0003] In view of the above related technologies, the cross-section and the opening of the frame are mostly rectangular, and the circuit board is mostly rectangular and adapted to the cross-section of the frame. When installing the circuit board, due to the restrictive effect of the periphery of the frame, when installing the circuit board or electrical components, the hands of the installer are easily restricted by the periphery of the frame, resulting in troublesome installation of the circuit board and electrical components and low efficiency. Summary of the Invention

[0004] In order to reduce the restriction on the installation of the circuit board and electrical components by the housing and improve the installation efficiency of the circuit board and electrical components inside the housing, this application provides a split housing structure for a circuit board.

[0005] The split housing structure for a circuit board provided by this application adopts the following technical solution:

[0006] A split housing structure for a circuit board includes a housing. The housing includes a first half-shell and a second half-shell. The first half-shell includes a bottom plate, a connecting plate, and two first side plates. The two first side plates are fixed on opposite sides of the bottom plate, the connecting plate is fixed on the opposite sides of the first side plates, and the cross-section formed by enclosing the first side plates and the bottom plate is in a U-shaped. The second half-shell includes a panel and two second side plates. The two second side plates are fixed on opposite sides of the panel. The second side plates are opposite to the connecting plate, the bottom plate is opposite to the panel, and the second side plates are provided with fasteners detachably connected to the connecting plate. The cross-section formed by enclosing the second side plates and the panel is in a U-shaped, and the first half-shell and the second half-shell enclose to form the housing with an internal cavity.

[0007] By adopting the above technical solution, when installing the circuit board, the first half shell and the second half shell can be disassembled first, and then the circuit board and electrical components can be installed on the bottom plate of the first half shell. Since the upper surface and the two opposite sides of the shell are open after the second half shell is removed, the space restriction of the shell side wall on the installation of the circuit board and electrical components can be greatly reduced, and the hand is easier to operate. Finally, the second half shell and the first half shell are fixed by fasteners to form a shell with an internal cavity, thereby reducing the restriction of the shell on the installation of the circuit board and electrical components and improving the installation efficiency of the circuit board and electrical components in the shell.

[0008] Preferably, it also includes an insulating cover that covers the panel and the shell and is located on the side of the panel, one side of the insulating cover is in contact with the panel, a positioning hole is provided on the first side panel, and a positioning block is provided on the side of the insulating cover and opposite to the first side panel, and the positioning block is clamped in the positioning hole; display holes are provided on both the insulating cover and the panel.

[0009] By adopting the above technical solution, the display hole can be used for installing a display screen on the shell, and the insulating cover can cover the panel. When the shell accidentally leaks electricity, it prevents the staff from directly contacting the shell during operation, thereby playing a role of insulation protection; and when the positioning block is engaged with the positioning block, the insulating cover is clamped to the first half shell, and at the same time the insulating cover can press the panel, so that the second half shell can be pressed against the first half shell, thereby improving the connection stability between the first half shell and the second half shell.

[0010] Preferably, a convex portion is provided on a side of the panel facing the insulation cover, and the convex portion abuts against the insulation cover.

[0011] By adopting the above technical solution, the insulating cover will not be directly and completely attached to the panel through the raised portion, and a gap will be formed between the insulating cover and the panel. When the insulating cover is squeezed, the insulating cover can play a certain buffering effect.

[0012] Preferably, a support column is provided on a side of the insulation cover facing the panel, and the support column abuts against the raised portion.

[0013] By adopting the above technical solution, the mutual abutment between the support column and the protrusion causes a rebound force between the insulating cover and the panel, ensuring the elastic deformation of the panel and the insulating cover, and further improving the buffering effect of the insulating cover on the shell.

[0014] Preferably, the support column is tubular, and a reinforcing rib fixed to the insulating cover is integrally fixed to the circumference of the support column.

[0015] By adopting the above technical solution, the structural strength between the support column and the panel can be improved by reinforcing the ribs, thereby reducing the probability of damage to the support column.

[0016] Preferably, the position of the panel located at the protrusion facing the base plate is a groove, an elastic reset member is provided in the groove, and the panel is detachably provided with a mounting rod at the notch of the groove, the mounting rod spans the notch of the groove, one end of the elastic reset member abuts against the bottom of the groove, and the other end of the elastic reset member is lower than the mounting rod.

[0017] By adopting the above technical solution, a groove is provided on the back side of the protrusion, so that the protrusion itself has a certain buffering effect; the elastic reset member in the groove can support the other side of the protrusion, and the detachable mounting rod can limit the elastic reset member in the groove, while ensuring the installation of the elastic reset member in the groove, so that the protrusion is not easy to be sunken when squeezed by the support column, thereby improving the buffering effect between the panel and the insulation cover.

[0018] Preferably, the panel is provided with a threaded sleeve on one side of the groove notch, the axial direction of the threaded sleeve is perpendicular to the depth direction of the groove, and one end of the mounting rod is threadedly connected to the threaded sleeve.

[0019] By adopting the above technical solution, the mounting rod is threadedly connected to the threaded sleeve, so that the mounting rod can be quickly and detachably connected to the panel, and the mounting rod is made to span the groove notch.

[0020] Preferably, the elastic return member is a rubber column, and a positioning rod is vertically and detachably provided on the outside of the mounting rod. The positioning rod passes through the radial direction of the mounting rod and is inserted into the end of the rubber column. The end of the rubber column is provided with an arc groove that cooperates with the outside of the mounting rod, and the rubber column is located at the bottom of the arc groove and is provided with a recess for inserting the positioning rod.

[0021] By adopting the above technical solution, the rubber column has a certain elastic reset ability. When installing the rubber column, the rubber column can be placed in the groove first, and then the mounting rod can be rotated so that one side of the mounting rod is attached to the arc groove of the rubber column and is locked with the threaded sleeve. The rubber column can be installed in the groove. At the same time, the setting of the arc groove can facilitate the stable rotation of the mounting rod.

[0022] Preferably, a first threaded hole is provided in the radial direction of the mounting rod, and the positioning rod is threadedly connected and passed through the first threaded hole.

[0023] By adopting the above technical solution, when the installation rod is rotated to be opposite to the rubber column and in the same straight line, the positioning rod is threadedly connected to the first threaded hole until the positioning rod passes through the first threaded hole and is stuck in the groove.

[0024] Preferably, a second threaded hole is provided on the connecting plate, and the fastener comprises a bolt passing through the second side plate and threadedly locked with the second threaded hole.

[0025] By adopting the above technical solution, after the first half shell and the second half shell are combined to form a rectangular shell, the bolt is passed through the second side plate and threadedly locked with the second threaded hole, so as to achieve locking between the second side plate and the connecting plate, and then achieve locking and fixation between the first half shell and the second half shell.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] (1) By arranging the cooperation between the first half shell, the second half shell, the connecting plate and the fasteners, the housing can be split into two parts, so that three sides of the housing can be opened, thereby reducing the restrictions of the housing on the installation of circuit boards and electrical components, and improving the installation efficiency of circuit boards and electrical components in the housing;

[0028] (2) By providing a fit between the insulating cover and the mounting hole, the installation of the display screen on the housing can be facilitated, and the safety of the housing can be improved in the event of leakage. At the same time, the second half shell can be pressed, thereby improving the installation stability between the first half shell and the second half shell;

[0029] (3) By arranging the cooperation between the support column and the raised portion, the insulating cover and the panel can rebound against each other, thereby improving the buffering protection effect of the panel on the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the shell structure of this embodiment;

[0031] Figure 2 Schematic diagram of the exploded structure of the shell structure of this embodiment;

[0032] Figure 3 Schematic diagram of the structure of the insulating cover of this embodiment;

[0033] Figure 4 yes Figure 1 Partial cross-sectional view of AA;

[0034] Figure 5 It is a schematic diagram of the explosion structure of the second shell of this embodiment.

[0035] Reference numerals: 1, insulating cover; 101, first plate; 102, second plate; 2, housing; 21, first half housing; 211, bottom plate; 212, connecting plate; 213, first side plate; 22, second half housing; 221, panel; 222, second side plate; 3, fastener; 4, second threaded hole; 5, positioning hole; 6, positioning block; 7, display hole; 8, protruding portion; 9, groove; 10, support column; 11, reinforcing rib; 12, elastic reset member; 13, threaded sleeve; 14, mounting rod; 15, arc-shaped groove; 16, positioning rod; 17, first threaded hole; 18, circuit board; 19, recess. Detailed implementation manners

[0036] The following further describes the present application in detail with reference to the Figure 1-5 accompanying drawings.

[0037] The embodiment of the present application discloses a split housing structure for a circuit board. Refer to Figure 1 , the circuit board housing structure includes an insulating cover 1 and a housing 2. The housing 2 is made of a metal material, and the insulating cover 1 is made of a plastic insulating material.

[0038] Refer to Figure 1 and Figure 2 , the housing 2 includes a first half housing 21 and a second half housing 22. The first half housing 21 includes a bottom plate 211, a connecting plate 212, and two first side plates 213. The bottom plate 211 and the first side plates 213 are both rectangular. The two first side plates 213 are vertically fixed to the opposite wide sides of the bottom plate 211. The connecting plate 212 is vertically fixed to the opposite sides of the first side plates 213 and is perpendicular to the bottom plate 211. The connecting plate 212 is strip-shaped. The first side plates 213 and the connecting plate 212 are both formed by bending. The cross-section formed by enclosing the first side plates 213 and the bottom plate 211 is in a U-shaped. The second half housing 22 includes a panel 221 and two second side plates 222. The panel 221 and the second side plates 222 are both rectangular. The two second side plates 222 are vertically fixed to the opposite sides of the panel 221. The cross-section formed by enclosing the second side plates 222 and the panel 221 is in a U-shaped. The second side plates 222 are opposite to the connecting plate 212. The bottom plate 211 and the panel 221 are parallel and opposite to each other. A fastener 3 for detachably connecting with the connecting plate 212 is provided on the second side plates 222. The first half housing 21 and the second half housing 22 enclose to form a rectangular housing 2 with an internal cavity.

[0039] The two ends of the connecting plate 212 are in contact with the second side plates 222. A second threaded hole 4 is machined on the connecting plate 212. The fastener 3 includes a bolt that passes through the second side plates 222 and is threadedly locked with the second threaded hole 4 to achieve the locking and fixing of the first half housing 21 and the second half housing 22.

[0040] Refer to Figure 2 and Figure 3The insulating cover 1 includes a first plate 101 and four second plates 102. The first plate 101 is rectangular, and the second plates 102 are integrally formed on the same surface around the first plate 101. The insulating cover 1 is snapped onto the second side plates 222. The insulating cover 1 covers the panel 221 and the portion of the housing 2 located around the panel 221. The first plate 101 and the panel 221 are opposite and abut each other, while the second plates 102 are positioned correspondingly to the outer sides of the first and second side plates 213 and 222. Positioning holes 5 are provided on the first side plates 213 near the insulating cover 1. Positioning blocks 6 are fixed to the surface of the first plate 101 opposite the first side plates 213. The positioning blocks 6 snap into the positioning holes 5, allowing the first plate 101 to press against the panel 221, improving the connection stability between the first and second half shells 21 and 22. Opposing display holes 7 are provided on both the insulating cover 1 and the panel 221, facilitating the installation of displays. The insulating cover 1 also reduces the risk of electric shock in the event of a current leak in the housing 2.

[0041] Among them, reference Figure 2 and Figure 4 A raised portion 8 is provided on the side of the panel 221 facing the insulating cover 1. The raised portion 8 is in the shape of a frustum and can be formed by stamping the side of the panel 221 facing the base plate 211. A groove 9 is formed on the inner side of the panel 221 where the raised portion 8 faces the base plate 211. The raised portion 8 abuts the insulating cover 1. In this embodiment, four raised portions 8 are provided. Furthermore, a tubular support column 10 is integrally formed on the side of the insulating cover 1 facing the panel 221. The support column 10 is arranged opposite the raised portion 8 and abuts the raised portion 8. The abutment between the raised portion 8 and the support column 10 creates a gap between the panel 221 and the first plate 101, ensuring the elastic deformation of the first plate 101 and the panel 221. Therefore, when the insulating cover 1 is impacted, the first plate 101 and the panel 221 can rebound against each other, providing a better cushioning effect and reducing the impact on the housing 2.

[0042] Reference Figure 3 A plurality of reinforcing ribs 11 are integrally formed around the support column 10 , and the reinforcing ribs 11 are fixed to the first plate 101 to improve the structural strength of the support column 10 .

[0043] Reference Figure 4 and Figure 5, an elastic reset member 12 is provided in the groove 9, and a mounting rod 14 is detachably provided on the panel 221 at the notch of the groove 9. The mounting rod 14 spans the notch of the groove 9 to limit the elastic reset member 12 from detaching from the groove 9. One end of the elastic reset member 12 abuts against the bottom of the groove 9, and the other end of the elastic reset member 12 is lower than the side connected to the mounting rod 14. The elastic reset member 12 is selected as a spring or a rubber column, both of which have a certain elastic reset ability; in this embodiment, the rubber column is taken as an example. When the rubber column is stuck in the groove 9, the rubber column is always in a compressed state. Therefore, when the insulating cover 1 is impacted and the support column 10 produces a greater extrusion on the protrusion 8, the elastic reset member 12 can press the inner side of the protrusion 8, reduce the depression of the protrusion 8, and ensure the support strength and deformation of the protrusion 8.

[0044] Specifically, a threaded sleeve 13 is welded to one side of the panel 221 at the notch of the groove 9. The outer side of the threaded sleeve 13 is fixed to the panel 221 and is arranged along the radial direction of the notch, and the axial direction of the threaded sleeve 13 is perpendicular to the depth direction of the groove 9. One end of the mounting rod 14 is threadedly connected to the threaded sleeve 13 to achieve a detachable connection between the mounting rod 14 and the notch of the groove 9, facilitating the installation and replacement of the elastic reset member 12. An arcuate groove 15 is machined at the end of the rubber column near the mounting rod 14, which cooperates with one side of the mounting rod 14. The arcuate groove 15 can play a certain limiting role, so that the rubber column can remain stable when the mounting rod 14 is rotated.

[0045] A positioning rod 16 is vertically and detachably mounted on the outside of the mounting rod 14. The positioning rod 16 passes through the mounting rod 14 in a radial direction and is inserted into the end of the rubber column. A first threaded hole 17 is machined radially into the mounting rod 14. A recess 19 is defined at the bottom of the arcuate groove 15 of the rubber column for the positioning rod 16 to be inserted into. The recess 19 is circular and coaxial with the rubber column. When the mounting rod 14 is rotated until the first threaded hole 17 and the recess 19 are coaxial, the positioning rod 16 is threadedly connected and inserted into the first threaded hole 17 until the end of the positioning rod 16 enters the recess 19. The positioning rod 16 can limit the movement of the rubber column, ensuring that the rubber column remains stable within the groove 9.

[0046] The implementation principle of the split shell structure of a circuit board in the embodiment of the present application is as follows: when installing the circuit board 18, the circuit board 18 and electrical components can be installed on the bottom plate 211 of the first half shell 21 first. Since the second half shell 22 has not been installed yet, the upper surface of the shell 2 and the opposite sides of the periphery are open, that is, the part of the shell 2 covered by the second half shell 22 is open, so the space restriction of the side walls of the shell 2 on the installation of the circuit board 18 and electrical components can be greatly reduced, and the hands of the staff can be easier to operate; finally, the second half shell 22 and the first half shell 21 are fixed by the fasteners 3, and finally the insulating cover 1 is clamped and fixed, so as to reduce the restriction of the shell 2 on the installation of the circuit board 18 and electrical components, and improve the installation efficiency of the circuit board 18 and electrical components in the shell 2.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A split housing structure for a circuit board, comprising a housing (2), characterized in that: The housing (2) includes a first half-shell (21) and a second half-shell (22). The first half-shell (21) includes a bottom plate (211), a connecting plate (212), and two first side plates (213). The two first side plates (213) are fixed to opposite sides of the bottom plate (211), the connecting plate (212) is fixed to the opposite sides of the first side plates (213), and the cross-section formed by enclosing the first side plates (213) and the bottom plate (211) is in a U-shaped; the second half-shell (22) includes a panel (221) and two second side plates (222). The two second side plates (222) are fixed to opposite sides of the panel (221). The second side plates (222) are opposite to the connecting plate (212), the bottom plate (211) is opposite to the panel (221), and the second side plates (222) are provided with fasteners (3) detachably connected to the connecting plate (212); the cross-section formed by enclosing the second side plates (222) and the panel (221) is in a U-shaped, and the first half-shell (21) and the second half-shell (22) enclose the housing (2) with an internal cavity; The split housing structure further includes an insulating cover (1) covering the panel (221) and the part of the housing (2) around the panel (221). One side of the insulating cover (1) abuts against the panel (221). A positioning hole (5) is provided on the first side plate (213), and a positioning block (6) is provided at a position on the periphery of the insulating cover (1) opposite to the first side plate (213). The positioning block (6) is snap-fitted into the positioning hole (5); display holes (7) are provided on both the insulating cover (1) and the panel (221); A protruding portion (8) is provided on the side of the panel (221) facing the insulating cover (1), and the protruding portion (8) abuts against the insulating cover (1); A support column (10) is provided on the side of the insulating cover (1) facing the panel (221), and the support column (10) abuts against the protruding portion (8); The support column (10) is tubular, and a reinforcing rib (11) fixed to the insulating cover (1) is integrally fixed to the periphery of the support column (10); The position of the panel (221) where the protruding portion (8) faces the bottom plate (211) is a groove (9). An elastic reset member (12) is provided in the groove (9). An installation rod (14) is detachably provided at the notch of the groove (9) of the panel (221). The installation rod (14) straddles the notch of the groove (9). One end of the elastic reset member (12) abuts against the bottom of the groove (9), and the other end of the elastic reset member (12) abuts against the installation rod (14).

2. The split housing structure of a circuit board according to claim 1, characterized in that: A threaded sleeve (13) is provided on one side of the panel (221) at the notch of the groove (9). The axial direction of the threaded sleeve (13) is perpendicular to the depth direction of the groove (9), and one end of the installation rod (14) is threadedly connected into the threaded sleeve (13).

3. The split housing structure of a circuit board according to claim 2, characterized in that: The elastic reset member (12) is a rubber column, and a positioning rod (16) is vertically and detachably provided on the outside of the mounting rod (14). The positioning rod (16) passes through the radial direction of the mounting rod (14) and is inserted into the end of the rubber column. The end of the rubber column is provided with an arc groove (15) that cooperates with the outside of the mounting rod (14). The rubber column is provided with a recess (19) at the bottom of the arc groove (15) for inserting the positioning rod (16).

4. The split housing structure of a circuit board according to claim 3, characterized in that: A first threaded hole (17) is provided in the radial direction of the mounting rod (14), and the positioning rod (16) is threadedly connected and passed through the first threaded hole (17).

5. The split housing structure of a circuit board according to claim 1, characterized in that: A second threaded hole (4) is provided on the connecting plate (212), and the fastener (3) comprises a bolt that passes through the second side plate (222) and is thread-locked with the second threaded hole (4).

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