Box body and electrical equipment
By adjusting the installation direction of the locking assembly to pass vertically through the flange of the upper cover and the lower box, the problem of unstable connection between the upper cover and the lower box in electrical equipment is solved, and higher locking reliability and sealing are achieved.
Patent Information
- Application Number
- CN202421801662.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-29
AI Technical Summary
In existing electrical equipment, the connection between the upper cover and the lower box is prone to failure of the screw due to the increase in air pressure, which poses a risk of disengagement, affecting the reliability and sealing of the equipment.
Adjust the installation direction of the locking assembly so that it passes vertically through the flange of the upper cover and the lower box to enhance the locking effect using radial shear force, avoiding the screw being cut off, and use a flange structure to increase sealing and stability.
It improves the locking reliability between the upper cover and the lower box, prevents disengagement, enhances the sealing effect, reduces the risk of screw failure, and ensures the safety and sealing of the equipment.
Smart Images
Figure CN223157343U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electrical equipment, in particular to a box body and an electrical equipment. Background Art
[0002] With the continuous development of electrical equipment technology, electrical equipment with energy storage functions is more and more widely used, such as products like inverters and switch boxes.
[0003] Generally speaking, an electrical equipment consists of a housing and electrical components arranged inside the housing. The housing is used to protect the electrical components. The housing includes an upper cover and a lower box body. After installing the electrical components in the lower box body, the upper cover is locked to the lower box body with screws to ensure a firm connection between the upper cover and the lower box body.
[0004] However, in the existing connection method between the upper cover and the lower box body, the screws are all vertically arranged, that is, the length direction of the screws is parallel to the depth direction of the lower box body. When an accident such as a short circuit occurs to the electrical components, causing the air pressure in the cavity inside the housing to increase, the upper cover expands and deforms outward, having a tendency to separate from the lower box body. At this time, the upper cover generates a pulling force on the screws, and the pulling force direction of the upper cover on the screws is parallel to the length direction of the screws. After using for a period of time, the screw threads of the screws may not be able to withstand the pulling force of the upper cover, and there is a risk that the screws fail and fly off. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a box body and an electrical equipment, by adjusting the installation direction of the locking component, to improve the reliability of the locking component in locking the upper cover and the lower box body.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] In the first aspect, a box body is provided, including:
[0008] A lower box body;
[0009] An upper cover, covering the lower box body. A first flanging extending along the depth direction of the lower box body is provided on the periphery of the upper cover, and the first flanging is located outside the lower box body;
[0010] A locking component, passing through the first flanging and the lower box body along a first direction to lock the first flanging and the lower box body, and the first direction is perpendicular to the extending direction of the first flanging.
[0011] As an optional technical solution, a second flanging that is folded outward is provided on the periphery of the lower box body, and the extending direction of the second flanging is perpendicular to the depth direction of the lower box body.
[0012] As an alternative technical solution, the second flanging is further connected to a third flanging, the third flanging extends along the depth direction of the lower box body, and the locking assembly passes through the first flanging and the third flanging along the first direction to lock the first flanging and the third flanging.
[0013] As an alternative technical solution, both the second flanging and the third flanging are obtained by folding the top wall of the lower box body.
[0014] As an alternative technical solution, the first flanging is further connected to a fourth flanging, the fourth flanging is folded towards the third flanging, and the fourth flanging is in close contact with the third flanging.
[0015] As an alternative technical solution, both the first flanging and the fourth flanging are obtained by folding the periphery of the upper cover.
[0016] As an alternative technical solution, the periphery of the upper cover is further provided with a fifth flanging and a sixth flanging, the fifth flanging, the sixth flanging and the first flanging are connected in sequence, and the fifth flanging, the sixth flanging and the body of the upper cover enclose a U-shaped structure.
[0017] As an alternative technical solution, the periphery of the lower box body is provided with a second flanging that is folded outwards, the extending direction of the second flanging is perpendicular to the depth direction of the lower box body, the second flanging is further connected to a third flanging, the third flanging extends along the depth direction of the lower box body, and the locking assembly passes through the first flanging and the third flanging along the first direction to lock the first flanging and the third flanging.
[0018] As an alternative technical solution, a sealing member is provided between the lower box body and the upper cover, and the sealing member is used to seal the gap between the lower box body and the upper cover.
[0019] In a second aspect, an electrical device is provided, the electrical device includes electrical components and the box body as described above, and the electrical components are arranged in the cavity formed by the upper cover and the lower box body.
[0020] Advantages of the present utility model:
[0021] The present utility model provides a box body and an electrical device. The box body includes a lower box body, an upper cover and a locking assembly; the upper cover covers the lower box body, the periphery of the upper cover is provided with a first flanging that extends along the depth direction of the lower box body, and the first flanging is located outside the lower box body; the locking assembly passes through the first flanging and the lower box body along the first direction to lock the first flanging and the lower box body, and the first direction is perpendicular to the extending direction of the first flanging.
[0022] The locking component vertically penetrates through the first flanging. When the upper cover expands and deforms, the first flanging generates a tangential force on the locking component in the radial direction, making it difficult for the locking component to be cut off and having strong reliability. Description of the Drawings
[0023] Figure 1 is a partial structural sectional view of the box body described in the first embodiment;
[0024] Figure 2 is Figure 1 a partial enlarged view of position A in
[0025] Figure 3 is a partial structural sectional view of the box body described in the second embodiment;
[0026] Figure 4 is Figure 3 a partial enlarged view of position B in
[0027] Figure 5 is a partial structural sectional view of the box body described in the third embodiment;
[0028] Figure 6 is Figure 5 a partial enlarged view of position C in
[0029] Figure 7 is a partial structural sectional view of the box body described in the fourth embodiment;
[0030] Figure 8 is Figure 7 a partial enlarged view of position D in
[0031] Figure 9 is a partial structural sectional view of the box body described in the fifth embodiment;
[0032] Figure 10 is Figure 9 a partial enlarged view of position E in
[0033] Figure 11 is a schematic structural diagram of the electrical equipment described in the sixth embodiment.
[0034] In the figure:
[0035] 1. Lower box body; 11. Second flanging; 12. Third flanging;
[0036] 2. Upper cover; 21. First flanging; 22. Fourth flanging; 23. Fifth flanging; 24. Sixth flanging;
[0037] 3. Sealing member;
[0038] 4. Locking component. Detailed Implementation Manner
[0039] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.
[0040] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. 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 situations.
[0041] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0042] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.
[0043] Embodiment 1:
[0044] As Figure 1 and Figure 2 shown, this embodiment provides a box body, which includes a lower box body 1, an upper cover 2, and a locking assembly 4; the upper cover 2 covers the lower box body 1, and a first flanging 21 extending along the depth direction of the lower box body 1 is provided on the periphery of the upper cover 2, and the first flanging 21 is located outside the lower box body 1; the locking assembly 4 passes through the first flanging 21 and the lower box body 1 along a first direction to lock the first flanging 21 and the lower box body 1, and the first direction is perpendicular to the extending direction of the first flanging 21.
[0045] Optionally, the upper cover 2 is provided with first flanges 21 extending in the depth direction of the lower box body 1 on at least one set of opposite sides. Each first flange 21 is located outside the lower box body 1. Connecting holes are provided on each first flange 21 and the peripheral part of the lower box body 1. The locking assembly 4 passes through the connecting holes of the first flange 21 and the connecting holes of the lower box body 1 along a first direction. The first direction is perpendicular to the extending direction of the first flange 21. When the internal air pressure in the box body increases, the upper cover 2 expands and deforms outward. The upper cover 2 has a tendency to separate from the box body in the depth direction of the lower box body 1. At this time, the first flange 21 generates a shearing force in the radial direction on the locking assembly 4. The locking assembly 4 has high radial structural strength and is not easily cut off, with strong reliability, thereby being able to prevent the upper cover 2 from separating from the lower box body 1.
[0046] In this embodiment, first flanges 21 extending in the depth direction of the lower box body 1 are provided on the peripheral part of the upper cover 2. In some other embodiments, first flanges 21 extending in the depth direction of the lower box body 1 are provided at both ends of the upper cover 2 in the length direction or the width direction.
[0047] In this embodiment, the locking assembly 4 includes a threaded fastener and a nut. The threaded fastener is a screw or a bolt.
[0048] In this embodiment, the nut is fixed to the inner wall of the lower box body 1. For example, the nut is welded to the inner wall of the lower box body 1. The screw passes through the connecting holes of the first flange 21 and the connecting holes of the lower box body 1 from the outside along the first direction and is then threadedly connected to the nut, thereby locking the first flange 21 and the lower box body 1.
[0049] In this embodiment, the locking assembly 4 is arranged on the side surface of the upper cover 2, without affecting the aesthetics of the front surface of the upper cover 2.
[0050] In some other embodiments, the connecting holes of the first flange 21 and the connecting holes of the lower box body 1 are both threaded holes. The screw is threadedly connected to the threaded holes of the first flange 21 and the threaded holes of the lower box body 1.
[0051] In the prior art, the screw locks the upper cover and the lower box body along the depth direction of the lower box body. The screw uses the thread to restrict the separation tendency of the upper cover. The structural strength of the thread is far less than the radial structural strength of the screw. When the internal air pressure in the box body reaches a certain level or the thread structure strength decreases due to wear, there may be a phenomenon of flying off. In this embodiment, the radial structure of the screw is used to restrict the separation tendency of the upper cover 2. The screw is difficult to be cut off, avoiding the phenomenon of flying off.
[0052] Optionally, a seal 3 is provided between the lower box body 1 and the upper cover 2. The seal 3 is used to seal the gap between the lower box body 1 and the upper cover 2.
[0053] In the normal state, the electrical component does not generate high-pressure gas. The upper cover 2 presses the seal 3 tightly against the lower box body 1. The seal 3 is an elastic colloid, which can ensure the sealing performance between the upper cover 2 and the lower box body 1, preventing dust, impurities, mosquitoes, rainwater, etc. from entering the interior of the box body.
[0054] Embodiment Two
[0055] As Figure 3 and Figure 4 shown, the difference between this embodiment and Embodiment One is that the periphery of the lower box body 1 of this embodiment is provided with a second flanging 11 that is turned outwards, and the extending direction of the second flanging 11 is perpendicular to the depth direction of the lower box body 1. The setting of the second flanging 11 can increase the contact area between the lower box body 1 and the upper cover 2 and ensure the sealing effect.
[0056] Optionally, the seal 3 is arranged between the second flanging 11 and the upper cover 2.
[0057] Optionally, the second flanging 11 is further connected with a third flanging 12. The third flanging 12 extends along the depth direction of the lower box body 1. The locking assembly 4 passes through the first flanging 21 and the third flanging 12 along the first direction to lock the first flanging 21 and the third flanging 12.
[0058] When the upper cover 2 expands and deforms outwards, the seal 3 follows the upper cover 2 away from the lower box body 1, or the seal 3 is fixed to the box body and the upper cover 2 moves away from the seal 3 and the box body. At this time, both the first flanging 21 and the third flanging 12 flip away from the lower box body 1. The high-pressure gas can cause a gap to be generated between the first flanging 21 and the third flanging 12, and the pressure is relieved from the gap between the first flanging 21 and the third flanging 12, reducing the pressure inside the box body.
[0059] In this embodiment, there is a gap between the third flanging 12 and the body of the lower box body 1, and the size of the gap is the width of the second flanging 11. The connecting holes of the first flanging 21 and the connecting holes of the third flanging 12 do not need to be provided with internal threads. Only need to pass the screw through the connecting holes of the first flanging 21 and the connecting holes of the third flanging 12, and then use the nut to sleeve on the screw to lock the first flanging 21 and the third flanging 12.
[0060] In this embodiment, both the second flanging 11 and the third flanging 12 are turned out from the top wall of the lower box body 1.
[0061] Optionally, the end of the third flanging 12 is provided with a notch, and the notch will be used for drainage.
[0062] Embodiment Three
[0063] As Figure 5 and Figure 6As shown in the figure, the difference between this embodiment and the second embodiment is that a fourth flanging 22 is further connected to the first flanging 21 of this embodiment. The fourth flanging 22 is folded towards the third flanging 12, and the fourth flanging 22 is in close contact with the third flanging 12 to prevent dust, impurities, mosquitoes, rainwater, etc. from entering the interior of the box body through the gap between the first flanging 21 and the third flanging 12.
[0064] In this embodiment, both the first flanging 21 and the fourth flanging 22 are obtained by folding the periphery of the upper cover 2.
[0065] Embodiment Four
[0066] As Figure 7 and Figure 8 shown in the figure, the difference between this embodiment and the first embodiment is that a fifth flanging 23 and a sixth flanging 24 are further provided on the periphery of the upper cover 2 of this embodiment. The fifth flanging 23, the sixth flanging 24 and the first flanging 21 are connected in sequence, and the fifth flanging 23, the sixth flanging 24 and the body of the upper cover 2 enclose a U-shaped structure.
[0067] When the internal air pressure of the box body rises and the upper cover 2 expands and deforms outward, the space of the U-shaped structure formed by the fifth flanging 23, the sixth flanging 24 and the body of the upper cover 2 communicates with the internal space of the lower box body 1, increasing the internal space of the box body and being beneficial to reducing the pressure.
[0068] Embodiment Five
[0069] As Figure 9 and Figure 10 shown in the figure, the difference between this embodiment and the fourth embodiment is that a second flanging 11 that is folded outward is provided on the periphery of the lower box body 1 of this embodiment. The extending direction of the second flanging 11 is perpendicular to the depth direction of the lower box body 1. The second flanging 11 is further connected to a third flanging 12, and the third flanging 12 extends along the depth direction of the lower box body 1. The locking assembly 4 passes through the first flanging 21 and the third flanging 12 along the first direction to lock the first flanging 21 and the third flanging 12.
[0070] In this embodiment, the seal 3 is arranged between the second flanging 11 and the upper cover 2.
[0071] Embodiment Six
[0072] As Figure 11 shown in the figure, this embodiment provides an electrical device, which includes electrical components and a box body according to any one of Embodiments One to Five. The electrical components are arranged in the cavity formed by the upper cover 2 and the lower box body 1.
[0073] The electrical device of this embodiment can be an inverter, or a switch box, a distribution box, a current converter, an energy storage device, etc.
[0074] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.
Claims
1. A box body, characterized in that, Comprising: Lower box body (1); Upper cover (2), covering the lower box body (1). A first flanging (21) extending along the depth direction of the lower box body (1) is provided at the periphery of the upper cover (2), and the first flanging (21) is located outside the lower box body (1); Locking assembly (4), passing through the first flanging (21) and the lower box body (1) along a first direction to lock the first flanging (21) and the lower box body (1), and the first direction is perpendicular to the extending direction of the first flanging (21).
2. The box according to claim 1, characterized in that, A second flanging (11) that is folded outward is provided at the periphery of the lower box body (1), and the extending direction of the second flanging (11) is perpendicular to the depth direction of the lower box body (1).
3. The box according to claim 2, characterized in that, The second flanging (11) is further connected to a third flanging (12), and the third flanging (12) extends along the depth direction of the lower box body (1). The locking assembly (4) passes through the first flanging (21) and the third flanging (12) along the first direction to lock the first flanging (21) and the third flanging (12).
4. The box according to claim 3, characterized in that, Both the second flanging (11) and the third flanging (12) are obtained by folding the top wall of the lower box body (1).
5. The box according to claim 3, characterized in that, The first flanging (21) is further connected to a fourth flanging (22), and the fourth flanging (22) is folded towards the third flanging (12), and the fourth flanging (22) is in close contact with the third flanging (12).
6. The box according to claim 5, characterized in that, Both the first flanging (21) and the fourth flanging (22) are obtained by folding the periphery of the upper cover (2).
7. The box according to claim 1, characterized in that, A fifth flanging (23) and a sixth flanging (24) are further provided at the periphery of the upper cover (2). The fifth flanging (23), the sixth flanging (24), and the first flanging (21) are connected in sequence, and the fifth flanging (23), the sixth flanging (24), and the body of the upper cover (2) enclose a U-shaped structure.
8. The box according to claim 7, characterized in that A second flanging (11) that is folded outward is provided at the periphery of the lower box body (1), and the extending direction of the second flanging (11) is perpendicular to the depth direction of the lower box body (1). The second flanging (11) is further connected to a third flanging (12), and the third flanging (12) extends along the depth direction of the lower box body (1). The locking assembly (4) passes through the first flanging (21) and the third flanging (12) along the first direction to lock the first flanging (21) and the third flanging (12).
9. The box according to any one of claims 1-8, characterized in that, A sealing member (3) is provided between the lower box body (1) and the upper cover (2), and the sealing member (3) is used to seal the gap between the lower box body (1) and the upper cover (2).
10. Electrical equipment, characterized in that, The electrical equipment includes electrical components and a box body as described in any one of claims 1-9, and the electrical components are arranged in the cavity formed by the upper cover (2) and the lower box body (1).