A shell structure and control box

Abstract

The utility model relates to electrical engineering technical field and discloses a kind of shell structure and control box, shell structure includes upper shell, lower shell and cover, upper shell and lower shell joint cooperation, first window is set on upper shell and with the first electrical interface corresponding, cover is jointed in upper shell to shield first electrical interface, the backside wall of cover is provided with the step surface towards downwards, and the backside wall of cover is provided with the dismounting hole on upper shell corresponding;When the control box is externally connected with expansion card by first electrical interface in the above scheme, cover is tightly shielded first electrical interface by jointing mode, cooperate the jointing sealing design of upper shell and lower shell, form physical barrier, effectively block dust, metal scrap and moisture invasion, cover backside step surface forms lever fulcrum, dismounting tool can be inserted into hole and abut with step surface or the edge of step surface, pry up cover by external force, with the characteristics of dismounting convenient.

Description

Technical Field

[0001] This utility model relates to the field of electrical engineering technology, and in particular to a housing structure and control box. Background Technology

[0002] In the fields of industrial equipment, home appliances, and new energy vehicles, the control box, as a core control unit, is the central carrier for visualizing equipment operating status and providing user feedback. When the control box requires an external expansion card, the expansion card's protective performance is relatively weak, lacking effective dust-proof, waterproof, and accidental touch prevention structures. In industrial environments, dust and metal debris can easily enter the control box through interface gaps, leading to short circuits, signal interference, or even equipment malfunctions. In outdoor or humid environments, moisture infiltration may cause insulation failure and component corrosion. Accidental contact by users or operators with exposed expansion interfaces may unintentionally trigger incorrect commands or create personal safety hazards. Utility Model Content

[0003] This utility model discloses a housing structure and a control box to solve the above-mentioned technical problems existing in related technologies.

[0004] To solve the above problems, the present invention adopts the following technical solution: In a first aspect, this application provides a housing structure, wherein the control box has a first electrical interface, the housing structure includes an upper housing, a lower housing, and a cover, wherein the upper housing and the lower housing are snap-fitted together, the upper housing is provided with a first window penetrating through the upper housing, the first window corresponding to the first electrical interface, the cover is snap-fitted onto the upper housing to cover the first electrical interface, the back sidewall of the cover is provided with a downward-facing stepped surface, the upper housing is provided with a disassembly hole corresponding to the back sidewall of the cover, a disassembly tool can be inserted into the disassembly hole and abut against the stepped surface or the edge of the stepped surface, and the disassembly tool is configured to pry up the cover under the action of external force.

[0005] Furthermore, the upper housing is also provided with a receiving cavity, and the opening area of ​​the first window is located in the bottom wall area of ​​the receiving cavity.

[0006] Furthermore, the upper housing is provided with a baffle on the bottom wall of the receiving cavity, the baffle corresponding to the disassembly hole, and when the cover is snapped into the upper housing, the back side wall of the cover is located between the disassembly hole and the baffle.

[0007] Furthermore, the upper housing is provided with a stepped structure at the lower part of the disassembly hole, and the upper surface of the stepped structure is adjacent to and lower than the stepped surface.

[0008] Furthermore, a longitudinally extending concave-convex fitting structure is provided between the upper shell and the cover.

[0009] Furthermore, the sidewall of the cover is provided with a plurality of reinforcing ribs, which extend longitudinally and are distributed along the periphery of the cover.

[0010] Furthermore, the cover is provided with a fastener, and part of the reinforcing rib passes through the fastener.

[0011] Furthermore, the control box also has a second electrical interface, and a second window corresponding to the second electrical interface is provided on the side wall of the upper housing or the lower housing. The housing structure is provided with a longitudinally extending through slot, through which the expansion module can slide to the position corresponding to the second electrical interface.

[0012] Furthermore, the portion of the through slot adjacent to the second window is constricted.

[0013] Secondly, this application also provides a control box, which includes the aforementioned housing structure.

[0014] The technical solution adopted in this utility model can achieve the following beneficial effects: The housing structure and control box of this utility model allow for the expansion of the control box's functions through an external expansion card that can be electrically connected to a first electrical interface. The cover tightly shields the first electrical interface via a snap-fit ​​mechanism, and the snap-fit ​​sealing design between the upper and lower housings forms a physical barrier that effectively prevents dust, metal debris, and moisture from intruding. It also avoids erroneous commands or safety hazards caused by accidental touches by the operator. When installing or removing the expansion module, the stepped surface or edge of the stepped surface on the back side wall of the cover can form a lever fulcrum. The disassembly tool (such as a flathead screwdriver) can be inserted into the disassembly hole and abut against the stepped surface or edge of the stepped surface. When the operator applies external force to pry up the cover with the disassembly tool, the cover can be lifted and separated from the upper housing, making disassembly convenient. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the control box according to an embodiment of this application; Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle; Figure 3This is a schematic diagram of the upper shell structure according to an embodiment of this application; Figure 4 yes Figure 3 A magnified view of a portion of point B in the middle; Figure 5 This is a schematic diagram of the structure of the cover according to an embodiment of this application; Figure 6 This is an exploded view of the control box according to an embodiment of this application.

[0017] In the picture: 100. Upper housing; 110. First window; 120. Disassembly hole; 130. Receiving cavity; 140. Baffle; 150. Stepped structure; 200. Lower housing; 210. Second window; 220. Through groove; 300. Cover; 310. Stepped surface; 320. Reinforcing rib; 330. Snap-fit; 400. First electrical interface; 500. Second electrical interface. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] This application provides a housing structure and a control box, which are described below in conjunction with the accompanying drawings. Figures 1-6 The shell structure and control box provided in this application will be described in detail through specific embodiments and application scenarios.

[0020] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This application discloses a housing structure applied to a control box as a mounting base for electronic components within the control box, providing a certain degree of protection for these components. Specifically, the disclosed housing structure includes an upper housing 100, a lower housing 200, and a cover 300. The upper housing 100 and the lower housing 200 are snap-fitted together to form a housing structure with a receiving space for accommodating electronic components. For example, the electronic components may be PCBs, etc. In this application embodiment, the upper housing 100 has a first window 110 penetrating through it. The control box has a first electrical interface 400 located on the PCB, corresponding to the first window 110. An external expansion card can be electrically connected to the PCB by inserting into the first electrical interface 400 through the first window 110. The cover 300 is snap-fitted into the upper housing 100 to shield the first electrical interface 400.

[0021] In the embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 5 The back sidewall of the cover 300 is provided with a downward-facing stepped surface 310. The upper housing 100 is provided with a disassembly hole 120 corresponding to the back sidewall of the cover 300. For example, the stepped surface 310 is located in the middle of the back sidewall of the cover 300. A disassembly tool can be inserted into the disassembly hole 120. For example, the disassembly tool can be a flathead screwdriver. The end of the disassembly tool abuts against the stepped surface 310 or the edge of the stepped surface 310. The disassembly tool is configured to pry up the cover 300 under the action of external force, thereby realizing the disassembly and separation of the cover 300 and the upper housing 100. It is understood that when the cover 300 and the upper housing 100 are disassembled and separated, the expansion card can be electrically connected to the first electrical interface 400 or the expansion card that has been electrically connected to the first electrical interface 400 can be removed. After installation and connection or disassembly and removal, the cover 300 and the upper housing 100 can be snapped together again.

[0022] Based on the above technical solution, the external expansion card can expand the function of the control box by electrically connecting with the first electrical interface 400. The cover 300 tightly covers the first electrical interface 400 by snap-fitting. Combined with the snap-fit ​​sealing design of the upper shell 100 and the lower shell 200, a physical barrier is formed to effectively prevent dust, metal debris and moisture from entering. At the same time, it can also avoid incorrect commands or safety hazards caused by accidental touch by the operator. When installing or removing the expansion card, the stepped surface 310 or the edge of the stepped surface 310 on the back side wall of the cover 300 can form a lever fulcrum. The disassembly tool can be inserted into the disassembly hole 120 and abut against the stepped surface 310 or the edge of the stepped surface 310. When the operator applies external force to the disassembly tool to pry up the cover 300, the cover 300 can be lifted and separated from the upper shell 100, which has the feature of convenient disassembly.

[0023] In a further technical solution, a disassembly mark is also provided on the cover 300 corresponding to the disassembly hole 120. For example, the disassembly mark can be a pattern of a disassembly tool, such as a flathead screwdriver. When it is necessary to connect an external expansion card to the control box or remove the expansion card, the staff can intuitively judge by seeing the disassembly mark that the disassembly tool can be inserted into the disassembly hole to disassemble and remove the cover 300, thus avoiding hard damage.

[0024] In the embodiments of this application, please continue to refer to Figure 3 , Figure 4 , Figure 5 and Figure 6 The upper housing 100 is also provided with a receiving cavity 130, which is used to accommodate an expansion card that is electrically connected to the first electrical interface 400. The opening area of ​​the first window 110 is located in the bottom wall area of ​​the receiving cavity 130. After the cover 300 is snapped onto the upper housing 100, the receiving cavity 130 provides an embedded storage cavity for the expansion card. Together with the shielding effect of the cover 300, a double physical barrier is formed between the cavity and the cover 300. Compared with the traditional exposed expansion design, the housing structure of this embodiment can completely block the intrusion path of dust and metal debris, thereby ensuring the stability of the control box operation.

[0025] For some embodiments of this application, please refer to Figure 4 The upper housing 100 has a baffle 140 on the bottom wall of the receiving cavity 130. The baffle 140 corresponds to the disassembly hole 120. For example, the baffle 140 is integrally formed with the upper housing 100. When the cover 300 is snapped into the upper housing 100, the back side wall of the cover 300 is located between the disassembly hole 120 and the baffle 140. The corresponding layout of the baffle 140 and the disassembly hole 120 forms a physical limiting barrier for the disassembly tool. When the disassembly tool is inserted into the disassembly hole 120 and pryed up the cover 300, the pre-blocking action of the baffle 140 can effectively constrain the movement trajectory of the end of the disassembly tool, preventing it from accidentally penetrating into the control box due to operational errors or vibration, and avoiding mechanical damage (such as scratches, squeezing or short circuit risks) to the PCB, electronic components or internal wiring harness.

[0026] In a further technical solution, the baffle 140 is provided with a longitudinally extending rib on the side opposite to the disassembly hole 120. The lower end of the rib is connected to the bottom wall of the receiving cavity 130. The rib can strengthen the connection between the baffle 140 and the bottom wall of the receiving cavity 130, making it less prone to bending or breaking, and ensuring the effectiveness of protection.

[0027] Please see Figure 4 and Figure 5The upper housing 100 is also provided with a stepped structure 150 below the disassembly hole 120. The upper surface of the stepped structure 150 is adjacent to and lower than the step surface 310. With this arrangement, when the cover 300 is pried up, the stepped structure 150 can position the end of the disassembly tool when it is inserted into the disassembly hole 120, preventing the end of the disassembly tool from going too deep. When the end of the disassembly tool abuts against the upper surface of the stepped structure 150, it is only necessary to gently rotate the disassembly tool to make its end abut against the step surface 310 or the edge of the step surface 310. This avoids the process of the disassembly tool probing and searching for the step surface 310 or its edge after it is inserted into the disassembly hole 120. The entire disassembly process can be divided into disassembly tool insertion-rotation-prying, which greatly increases the convenience of disassembling the cover 300.

[0028] In a further technical solution, a longitudinally extending concave-convex fitting structure is provided between the upper housing 100 and the cover 300. For example, the concave-convex fitting structure may include a guide protrusion provided on the inner sidewall of the receiving cavity 130 and a guide recess provided on the outer sidewall of the cover 300. The guide protrusion and the guide recess guide and cooperate in the longitudinal direction. When the cover 300 is installed, the guide protrusion and the guide recess can provide a definite guide trajectory for the movement of the cover 300, avoiding the situation where the cover 300 is tilted, stuck or misaligned relative to the upper housing 100 due to human operation error, thereby ensuring the smoothness of the cover 300 being fastened to or removed from the upper housing 100.

[0029] For further technical solutions, please refer to [link / reference]. Figure 5 The cover 300 has multiple reinforcing ribs 320 on its side wall. For example, the reinforcing ribs 320 extend longitudinally and can be distributed circumferentially along the cover 300. For example, the multiple reinforcing ribs 320 are located on the inner side wall of the cover 300. The longitudinally extending reinforcing ribs 320 form a "rib-like" support structure on the side wall of the cover 300, which significantly improves the cover 300's resistance to bending and compression. It effectively prevents the side wall of the cover 300 from deforming inward or outward after being subjected to force, and prevents the cover 300 from failing to snap-fit, loosening of the seal, or damage to the appearance due to deformation, thus ensuring the safety of the connection between the first electrical interface 400 and the expansion card.

[0030] In this embodiment, the upper housing 100 has an elastic buckle on the inner wall of the receiving cavity 130, and the cover 300 has a latch 330 on its side wall. For example, please refer to [link to relevant documentation]. Figure 5 The buckle 330 is a through hole that penetrates the side wall of the cover 300. The elastic buckle can be elastically deformed and partially embedded in the through hole to achieve the snap-fit ​​between the upper shell 100 and the cover 300.

[0031] For further technical solutions, please refer to [link / reference]. Figure 5 In the perforated area of ​​some reinforcing ribs 320, the structural strength of the side wall of the cover 300 is reduced due to the perforation. However, through the design of the fastener 330 via the reinforcing ribs 320, the reinforcing ribs 320 can reinforce the perforated area of ​​the cover 300 and improve the structural stability of the cover 300.

[0032] For some embodiments of this application, please refer to Figure 1 and Figure 2 The control box also has a second electrical interface 500. A second window 210 corresponding to the second electrical interface 500 is provided on the side wall of the upper housing 100 or the lower housing 200. The housing structure is provided with a longitudinally extending through slot 220 corresponding to the second window 210. The expansion module can slide through the through slot 220 to the position corresponding to the second electrical interface 500 and be electrically connected to the PCB inside the control box by making electrical contact with the second electrical interface 500.

[0033] For further technical solutions, please refer to Figure 2 The portion of the through slot 220 adjacent to the second window 210 is constricted. With this configuration, when the expansion module and the control box are assembled, the constricted portion of the through slot 220 can guide the electrical contacts on the expansion module, enabling them to accurately contact the electrical contacts on the second electrical interface 500. For example, each electrical contact on the second electrical interface 500 can be two first metal pieces, which are arched and abut or adjacent to each other. The electrical contacts on the expansion module can be second metal pieces. When the second metal piece slides between the two first metal pieces, the first metal pieces contact the second metal pieces, thus achieving an electrical connection between the control box and the expansion module.

[0034] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0035] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A housing structure for use in a control box, the control box having a first electrical interface (400), characterized in that, The shell structure includes an upper shell (100), a lower shell (200), and a cover (300); wherein: The upper housing (100) and the lower housing (200) are snapped together. The upper housing (100) is provided with a first window (110) that penetrates the upper housing (100). The first window (110) corresponds to the first electrical interface (400). The cover (300) is snapped onto the upper housing (100) to cover the first electrical interface (400). The back sidewall of the cover (300) is provided with a downward-facing stepped surface (310). The upper housing (100) is provided with a disassembly hole (120) corresponding to the back sidewall of the cover (300). A disassembly tool can be inserted into the disassembly hole (120) and abut against the stepped surface (310) or the edge of the stepped surface (310). The disassembly tool is configured to pry up the cover (300) under the action of external force.

2. The shell structure according to claim 1, characterized in that, The upper housing (100) is also provided with a receiving cavity (130), and the opening area of ​​the first window (110) is located in the bottom wall area of ​​the receiving cavity (130).

3. The shell structure according to claim 2, characterized in that, The upper housing (100) is provided with a baffle (140) on the bottom wall of the receiving cavity (130). The baffle (140) corresponds to the disassembly hole (120). When the cover (300) is engaged with the upper housing (100), the back side wall of the cover (300) is located between the disassembly hole (120) and the baffle (140).

4. The shell structure according to any one of claims 1 to 3, characterized in that, The upper housing (100) is further provided with a stepped structure (150) at the lower part of the disassembly hole (120), and the upper surface of the stepped structure (150) is adjacent to and lower than the stepped surface (310).

5. The shell structure according to any one of claims 1 to 3, characterized in that, A longitudinally extending concave-convex fitting structure is provided between the upper shell (100) and the cover (300).

6. The shell structure according to claim 1, characterized in that, The cover (300) has a plurality of reinforcing ribs (320) on its side wall. The reinforcing ribs (320) extend in the longitudinal direction and are distributed along the periphery of the cover (300).

7. The shell structure according to claim 6, characterized in that, The cover (300) is provided with a fastener (330), and part of the reinforcing rib (320) passes through the fastener (330).

8. The shell structure according to claim 1, characterized in that, The control box also has a second electrical interface (500). A second window (210) corresponding to the second electrical interface (500) is provided on the side wall of the upper housing (100) or the lower housing (200). A longitudinally extending through groove (220) is provided on the housing structure. The expansion module can slide through the through groove (220) to the position corresponding to the second electrical interface (500).

9. The shell structure according to claim 8, characterized in that, The portion of the through slot (220) adjacent to the second window (210) is constricted.

10. A control box, characterized in that, Includes the shell structure described in any one of claims 1 to 9.

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