Case and electrical equipment

Abstract

The utility model belongs to the technical field of electrical equipment, and discloses a cabinet and electrical equipment, and the cabinet comprises a cabinet body, a cover body, and a fastening assembly. The box body is covered with the cover body, the cover body is provided with a flanging structure located on the outer side of the box body, the flanging structure comprises a tail end flanging and a root flanging which are arranged in a spaced mode, the root flanging is located on the side, away from the box body, of the tail end flanging, the root flanging is provided with an adjusting hole, and the tail end flanging and the box body are both provided with connecting holes. The connecting hole of the tail end flanging and the connecting hole of the box body are coaxially arranged; the fastening assembly penetrates through the connecting hole of the tail end turnup and the connecting hole of the box body so as to lock the tail end turnup and the box body, and the fastening assembly can be locked or loosened by penetrating through the adjusting hole. And the fastening assembly is hidden on the inner side of the root flanging, so that the aesthetic property of the electrical equipment is improved, and meanwhile, the risk of scratching other electrical equipment or a user is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a chassis and an electrical equipment. Background Art

[0002] With the continuous development of electrical equipment, 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 includes 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 the electrical components are installed 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 always exposed outside the housing, which affects the aesthetics of the electrical equipment and even poses a risk of scratching other electrical equipment or users. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a chassis and an electrical equipment, which hide the fastening component inside the root flange to improve the aesthetics of the electrical equipment and at the same time reduce the risk of scratching other electrical equipment or users.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] In the first aspect, a chassis is provided, including:

[0008] A box body;

[0009] A cover body covering the box body. The cover body has a flange structure located outside the box body. The flange structure includes a terminal flange and a root flange arranged at intervals. The root flange is located on the side of the terminal flange away from the box body. The root flange is provided with an adjustment hole. The terminal flange and the box body are both provided with connection holes. The connection holes of the terminal flange and the connection holes of the box body are coaxially arranged;

[0010] A fastening component passing through the connection hole of the terminal flange and the connection hole of the box body to lock the terminal flange and the box body, and the fastening component can be locked or loosened by passing through the adjustment hole.

[0011] As an optional technical solution, the terminal flange extends along the depth direction of the box body, and the fastening component vertically passes through the terminal flange and the box body along the X-axis direction.

[0012] As an alternative technical solution, the flanging structure is a U-shaped structure. The two opposite side walls of the flanging structure are respectively the root flanging and the end flanging, and the head of the fastening component is located in the U-shaped groove of the flanging structure.

[0013] As an alternative technical solution, the cover body has a covering portion covering the opening of the box body, and the distance from the end flanging to the covering portion is greater than the distance from the edge of the opening of the box body to the covering portion.

[0014] As an alternative technical solution, a transition flanging is connected between the root flanging and the end flanging, and the root flanging, the transition flanging and the end flanging enclose a U-shaped structure.

[0015] As an alternative technical solution, a sealing member is provided between the box body and the cover body.

[0016] As an alternative technical solution, the box body is provided with an outwardly turned bearing flanging, the extending direction of the bearing flanging is perpendicular to the depth direction of the box body, and the sealing member is arranged on the bearing flanging.

[0017] As an alternative technical solution, the bearing flanging is connected with a connecting flanging, the connecting flanging extends along the depth direction of the box body, the connecting flanging is provided with a connecting hole, the connecting hole of the end flanging and the connecting hole of the connecting flanging are coaxially arranged, and the fastening component vertically passes through the end flanging and the connecting flanging along the X-axis direction.

[0018] As an alternative technical solution, a through hole is provided inside the sealing member.

[0019] In a second aspect, an electrical device is provided, including electrical components and the chassis as described above, and the electrical components are arranged inside the chassis.

[0020] Advantages of the present utility model:

[0021] The present utility model provides a chassis and an electrical device. The electrical device includes the chassis. The chassis includes a box body, a cover body and a fastening component. The cover body covers the box body. The cover body has a flanging structure located outside the box body. The flanging structure includes an end flanging and a root flanging arranged at intervals. The root flanging is located on the side of the end flanging away from the box body. The root flanging is provided with an adjusting hole. Both the end flanging and the box body are provided with connecting holes. The connecting holes of the end flanging and the box body are coaxially arranged. The fastening component passes through the connecting hole of the end flanging and the connecting hole of the box body to lock the end flanging and the box body, and the fastening component can be locked or loosened by passing through the adjusting hole.

[0022] The fastening assembly passes through the connection holes of the end flange and the box body to lock the end flange and the box body. When it is necessary to loosen the fastening assembly, a tool can be used to pass through the adjustment hole to loosen the fastening assembly. The root flange plays a role of isolating and protecting the fastening assembly, preventing other electrical devices or users from being scratched. Unless directly facing the adjustment hole, it is not easy to observe the fastening assembly with the naked eye, and the fastening assembly does not affect the aesthetics of the chassis. Description of the Drawings

[0023] Figure 1 is a partial structural cross-sectional view of the chassis of the first embodiment;

[0024] Figure 2 is Figure 1 a partial enlarged view of position A in

[0025] Figure 3 is a partial structural cross-sectional view of the chassis of the second embodiment;

[0026] Figure 4 is Figure 3 a partial enlarged view of position B in

[0027] Figure 5 is a structural schematic diagram of the electrical device of the third embodiment.

[0028] In the figure:

[0029] 1. Box body; 11. Bearing flange; 12. Connection flange;

[0030] 2. Cover body; 21. Flange structure; 211. End flange; 212. Root flange; 213. Transition flange; 214. Adjustment hole; 22. Covering part;

[0031] 3. Fastening assembly;

[0032] 4. Seal; 41. Through hole. Detailed Implementation Modes

[0033] The present utility model will be further described in detail below with reference to the 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. In addition, it should be noted that for the sake of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0034] 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 may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] 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 between them. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0036] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it 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 have no special meaning.

[0037] Embodiment 1

[0038] As Figure 1 and Figure 2 shown, this embodiment provides a chassis, which includes a box body 1, a cover body 2, and a fastening assembly 3; the cover body 2 covers the box body 1, the cover body 2 has a flanging structure 21 located outside the box body 1, the flanging structure 21 includes spaced-apart end flanges 211 and root flanges 212, the root flanges 212 are located on the side of the end flanges 211 away from the box body 1, the root flanges 212 are provided with adjustment holes 214, both the end flanges 211 and the box body 1 are provided with connection holes, and the connection holes of the end flanges 211 and the connection holes of the box body 1 are coaxially arranged; the fastening assembly 3 passes through the connection holes of the end flanges 211 and the connection holes of the box body 1 to lock the end flanges 211 and the box body 1, and the fastening assembly 3 can be locked or loosened by passing through the adjustment holes 214.

[0039] Specifically, the fastening assembly 3 passes through the connection holes of the end flange 211 and the connection holes of the box body 1 to lock the end flange 211 and the box body 1. When it is necessary to loosen the fastening assembly 3, a tool can be used to pass through the adjustment hole 214 to loosen the fastening assembly 3. The root flange 212 plays a role in isolating and protecting the fastening assembly 3, preventing it from scratching other electrical devices or users. Unless directly facing the adjustment hole 214, it is not easy to observe the fastening assembly 3 with the naked eye, and the fastening assembly 3 does not affect the aesthetics of the chassis.

[0040] Optionally, the cover body 2 is provided with a flanging structure 21 on at least one set of opposite sides.

[0041] In this embodiment, the circumferential part of the cover body 2 is provided with a flanging structure 21. In some other embodiments, the cover body 2 is provided with a flanging structure 21 at both ends in the X-axis direction or on both sides in the X-axis direction.

[0042] In the prior art, the screws are arranged vertically, 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 in the electrical component and the air pressure in the cavity inside the shell increases, 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 may not be able to withstand the pulling force of the upper cover, and there is a risk of screw failure and flying off.

[0043] To solve the above problems, in this embodiment, the end flange 211 extends along the depth direction of the box body 1, and the fastening assembly 3 vertically passes through the end flange 211 and the box body 1 in the X-axis direction. When the internal air pressure of the box body 1 increases, the cover body 2 expands and deforms outward, and the cover body 2 has a tendency to separate from the box body 1 along the depth direction of the box body 1. At this time, the end flange 211 generates a shearing force in the radial direction on the fastening assembly 3. The radial structural strength of the fastening assembly 3 is high, it is not easy to be cut off, and the reliability is strong, so as to prevent the cover body 2 from separating from the box body 1.

[0044] Optionally, the flanging structure 21 is a U-shaped structure. The two opposite side walls of the flanging structure 21 are respectively the root flange 212 and the end flange 211, and the head of the fastening assembly 3 is located in the U-shaped groove of the flanging structure 21.

[0045] In this embodiment, the fastening assembly 3 includes a threaded fastener and a nut, and the threaded fastener is a screw or a bolt.

[0046] In this embodiment, the nut is fixed to the inner wall of the box body 1. For example, the nut is welded to the inner wall of the box body 1. The screw passes through the adjustment hole 214 in the X-axis direction and then is inserted into the connection hole of the end flanging 211 and the connection hole of the box body 1. Then, the screw is threadedly connected to the nut, thereby locking the end flanging 211 and the box body 1. At this time, the screw completely passes through the adjustment hole 214, and the head of the screw is located in the U-shaped groove of the flanging structure 21. When it is necessary to loosen the screw, a screwdriver can be used to pass through the adjustment hole 214 to remove the screw.

[0047] In this embodiment, the root flanging 212 extends along the depth direction of the box body 1. When the internal air pressure of the box body 1 increases, the cover body 2 expands and deforms outward, and the root flanging 212 follows the deformation, making it easier for the inner cavity of the box body 1 to communicate with the U-shaped groove of the flanging structure 21.

[0048] Optionally, the cover body 2 has a covering portion 22 covering the opening of the box body 1. The distance from the end flanging 211 to the covering portion 22 is greater than the distance from the edge of the opening of the box body 1 to the covering portion 22. When the covering portion 22 expands and deforms, the opening of the flanging structure 21 communicates with the inside of the box body 1, realizing pressure relief and avoiding obstruction by the end flanging 211.

[0049] Optionally, a transition flanging 213 is connected between the root flanging 212 and the end flanging 211. The root flanging 212, the transition flanging 213, and the end flanging 211 enclose a U-shaped structure. The root flanging 212, the end flanging 211, and the transition flanging 213 are all obtained by folding the cover body 2.

[0050] In this embodiment, the extending direction of the transition flanging 213 is perpendicular to the extending direction of the root flanging 212 and the extending flanging of the end flanging 211.

[0051] In some other embodiments, the included angle between the extending direction of the transition flanging 213 and the extending direction of the root flanging 212 is less than 90°, the included angle between the extending direction of the transition flanging 213 and the extending flanging of the end flanging 211 is greater than 90°, or the included angle between the extending direction of the transition flanging 213 and the extending direction of the root flanging 212 is greater than 90°, and the included angle between the extending direction of the transition flanging 213 and the extending flanging of the end flanging 211 is less than 90°.

[0052] Optionally, a sealing member 4 is provided between the box body 1 and the cover body 2.

[0053] Under normal conditions, when the electrical component does not generate high-pressure gas, the cover body 2 presses the sealing member 4 against the box body 1. The sealing member 4 is an elastic colloid, which can ensure the sealing performance between the cover body 2 and the box body 1 and prevent dust, impurities, mosquitoes, rainwater, etc. from entering the inside of the box body 1.

[0054] Optionally, a notch is provided at the end of the flanging structure 21, and the notch is used for draining water.

[0055] Optionally, a through hole 41 is provided inside the seal 4 to improve the elastic buffering ability of the seal 4.

[0056] Optionally, the through hole 41 is not communicated with the inside of the box body 1 to prevent rainwater or mosquitoes from entering the inside of the box body 1 through the through hole 41.

[0057] Embodiment Two

[0058] As Figure 3 and Figure 4 shown, the difference between this embodiment and Embodiment Two is that the box body 1 is provided with an outward-turned bearing flange 11, the extending direction of the bearing flange 11 is perpendicular to the depth direction of the box body 1, and the seal 4 is arranged on the bearing flange 11. Setting the bearing flange 11 can increase the contact area between the box body 1 and the cover body 2 and ensure the sealing effect.

[0059] Optionally, the bearing flange 11 is connected with a connecting flange 12, the connecting flange 12 extends along the depth direction of the box body 1, the connecting flange 12 is provided with a connecting hole, the connecting hole of the end flange 211 is coaxially arranged with the connecting hole of the connecting flange 12, and the fastening component 3 vertically penetrates through the end flange 211 and the connecting flange 12 along the X-axis direction.

[0060] Both the connecting flange 12 and the bearing flange 11 are obtained by folding the box body 1. When there is no high-pressure gas inside the box body 1, the end flange 211 is in close contact with the connecting flange 12, which can prevent dust impurities, mosquitoes, rainwater, etc. from entering the U-shaped space of the flange structure 21. After high-pressure gas is generated inside the box body 1, the cover body 2 deforms, the root flange 212, the end flange 211 and the connecting flange 12 are all pulled, the opening of the flange structure 21 is communicated with the inside of the box body 1, and a gap is generated between the end flange 211 and the connecting flange 12 for pressure relief.

[0061] Embodiment Three

[0062] As Figure 5 shown, this embodiment provides an electrical device, including electrical components and a chassis such as in Embodiment One or Embodiment Two, and the electrical components are arranged inside the chassis.

[0063] The electrical device in this embodiment can be an inverter, or a switch box, a distribution box, a current converter, an energy storage device, etc.

[0064] 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 chassis, characterized in that: include: Box body (1); A cover body (2) is arranged on the box body (1), the cover body (2) has a flange structure (21) located outside the box body (1), the flange structure (21) comprises an end flange (211) and a root flange (212) arranged at intervals, the root flange (212) is located on a side of the end flange (211) away from the box body (1), the root flange (212) is provided with an adjustment hole (214), the end flange (211) and the box body (1) are both provided with a connection hole, and the connection hole of the end flange (211) and the connection hole of the box body (1) are coaxially arranged; The fastening assembly (3) passes through the connection hole of the end flange (211) and the connection hole of the box body (1) to lock the end flange (211) and the box body (1), and passes through the adjustment hole (214) to lock or loosen the fastening assembly (3).

2. The chassis according to claim 1, characterized in that: The terminal flange (211) extends along the depth direction of the box body (1), and the fastening assembly (3) vertically passes through the terminal flange (211) and the box body (1) along the X-axis direction.

3. The chassis according to claim 2, characterized in that: The flange structure (21) is a U-shaped structure, and the two opposite side walls of the flange structure (21) are respectively the root flange (212) and the end flange (211), and the head of the fastening component (3) is located in the U-shaped groove of the flange structure (21).

4. The chassis according to claim 3, characterized in that: The cover body (2) has a covering portion (22) covering the opening of the box body (1), and the distance from the end flange (211) to the covering portion (22) is greater than the distance from the edge of the opening of the box body (1) to the covering portion (22).

5. The chassis according to claim 3, characterized in that: A transition flange (213) is connected between the root flange (212) and the terminal flange (211), and the root flange (212), the transition flange (213) and the terminal flange (211) form a U-shaped structure.

6. The chassis according to any one of claims 1 to 5, characterized in that: A sealing member (4) is provided between the box body (1) and the cover body (2).

7. The chassis according to claim 6, characterized in that: The box body (1) is provided with an outward-turned load-bearing flange (11), the extension direction of the load-bearing flange (11) is perpendicular to the depth direction of the box body (1), and the sealing member (4) is arranged on the load-bearing flange (11).

8. The chassis according to claim 7, characterized in that: The load-bearing flange (11) is connected to a connecting flange (12), the connecting flange (12) extends in the depth direction of the box body (1), the connecting flange (12) is provided with a connecting hole, the connecting hole of the end flange (211) is coaxially arranged with the connecting hole of the connecting flange (12), and the fastening component (3) vertically passes through the end flange (211) and the connecting flange (12) along the X-axis direction.

9. The chassis according to claim 6, characterized in that: A through hole (41) is provided inside the sealing member (4).

10. An electrical device, characterized in that It comprises an electrical component and a chassis as described in any one of claims 1 to 9, wherein the electrical component is arranged inside the chassis.

Images