CN220964641U - Box structure, inverter and power system - Google Patents

Abstract

The utility model relates to the technical field of inverters and provides a box structure, an inverter and a power system. Like this, can utilize the manger plate turn-ups as first sealed waterproof construction, realize waterproof effect, manger plate turn-ups's setting can also reduce the clearance between cover and the quick-witted case to can reduce the impact pressure that the rivers flowed into this clearance, under the effect that the sealing member was sealed waterproof construction as the second, can improve waterproof effect to a great extent, guarantee the leakproofness.

Description

Box structure, inverter and power system

Technical Field

The utility model relates to the technical field of inverters, in particular to a box structure, an inverter and a power system.

Background

An inverter is a very important device that is capable of changing the nature of current in an electric power system such as a photovoltaic system, converting the operation of a circuit, and playing a role in lifting weight in the entire operation circuit.

Currently, in order to protect the inverter assembly, the inverter assembly is generally housed in a case. The box body mainly comprises a machine case and a machine cover, wherein the machine case is used for loading the inverter component, and the machine cover is covered on the machine case. In order to prevent water or other liquid from entering the casing, a sealing strip is generally stuck on the cover, an assembly gap between the cover and the casing is sealed by the sealing strip, and then the cover and the casing are fastened by a plurality of screws.

However, when the inverter is used in rainy weather, a small amount of rainwater more or less remains between the cover and the case, and the sealing strip is impacted, so that the sealing strip is easy to age and damage after long-time use, and liquid such as rainwater can enter the case from a gap between the case and the cover, so that an inverter assembly inside the case is easy to damage due to damp.

Disclosure of utility model

The utility model solves the problems that: how to improve the waterproof capability of the inverter case.

In order to solve the problems, the utility model provides a box structure, which comprises a cover, a machine case and a sealing element, wherein one end of the machine case, which is used for being covered by the cover, is provided with a first flanging, the sealing element is arranged between the cover and the first flanging, one side, facing the machine case, of the cover is provided with a water retaining flanging, and the water retaining flanging is used for surrounding the sealing element.

Optionally, the first flange is provided with a water diversion groove and a drain hole, the water diversion groove is used for surrounding the sealing piece, the drain hole is arranged in the water diversion groove, and the water retaining flange is used for being inserted in the water diversion groove.

Optionally, the drain hole is located at a side of the water deflector flange facing away from the sealing member.

Optionally, the drain hole is arranged at the joint of the bottom and the side wall of the water diversion groove.

Optionally, a space is formed between the water retaining flange and the bottom wall of the water diversion groove.

Optionally, the water diversion groove is formed by downwards sinking a local part of the first flanging.

Optionally, the bottom of the water diversion groove is inclined downwards away from one end of the sealing strip.

Optionally, the cover is towards protruding being equipped with the convex closure of one side of machine case, the convex closure is around the water diversion groove sets up, just be equipped with the mounting hole on the convex closure, the cover is used for the mounting hole department with the connection can be dismantled to the first turn-ups of machine case.

In order to solve the above problems, the present utility model also provides an inverter including the case structure as described above.

In order to solve the above problems, the present utility model further provides an electric power system including the case structure as described above, or including the inverter as described above.

Compared with the prior art, the utility model has the following beneficial effects:

According to the box body structure, the first flanging is arranged at one end of the machine box, which is used for being covered by the machine cover, and the water retaining flanging is positioned at one side of the machine cover, which faces the machine box, so that water flow is prevented from entering a gap between the machine cover and the machine box in the circumferential direction of the water retaining flanging, the water retaining flanging forms a first sealing waterproof structure, and a waterproof effect is realized; under the condition of adopting the sealing piece to carry out waterproof sealing, the water retaining flange is utilized to carry out water retaining, so that the tightness between the cover and the case can be improved more effectively. Moreover, the setting of manger plate turn-ups can also reduce the clearance between bonnet and the quick-witted case to can reduce the impact pressure that the rivers flowed into this clearance, like this, the rivers that the little part infiltration manger plate turn-ups inboard can weaken the pressure of rivers because of the baffle of manger plate turn-ups, under the effect that the sealing member was sealed waterproof construction as the second, can improve the water-proof effects to a great extent, guarantee the leakproofness.

Drawings

FIG. 1 is a schematic diagram of an explosion structure of a box structure according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a part of a case structure in a cross-section of an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a chassis according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a portion of a chassis in a cross-section of an embodiment of the present utility model;

FIG. 5 is a schematic view of a cover according to an embodiment of the present utility model;

Fig. 6 is a schematic view of a partial cross section of a cover according to an embodiment of the utility model.

Reference numerals illustrate:

1. A cover; 11. water blocking flanging; 12. a second flanging; 13. convex hulls; 131. a mounting hole; 2. a chassis; 21. a first flanging; 211. a water diversion trench; 212. a drain hole; 3. and a seal.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The Z axis in the drawing represents the vertical direction, i.e., the up-down position, and the forward direction of the Z axis represents the up direction and the reverse direction of the Z axis represents the down direction; the X-axis in the drawing represents the horizontal direction and is designated as the front-rear position, and the forward direction of the X-axis represents the front side and the reverse direction of the X-axis represents the rear side; the Y-axis in the drawing is shown in a left-right position, and the forward direction of the Y-axis represents the left side and the reverse direction of the Y-axis represents the right side. It should also be noted that the foregoing Z-axis, Y-axis, and X-axis are meant to be illustrative only and not indicative or implying that the apparatus or component in question must be oriented, configured or operated in a particular orientation, and therefore should not be construed as limiting the utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

It should be noted that, the case structure of the present utility model may be applied to an inverter, or may be applied to other electric devices having a case, and for convenience of description, the case structure is described in detail by taking an example in which the case structure is applied to an inverter.

Referring to fig. 1, fig. 2, fig. 5 and fig. 6, an embodiment of the present utility model provides a box structure, which includes a cover 1, a case 2 and a sealing member 3, wherein a first flange 21 is disposed at one end of the case 2 for covering the cover 1, the sealing member 3 is disposed between the cover 1 and the first flange 21, a water retaining flange 11 is disposed at a side of the cover 1 facing the case 2, and the water retaining flange 11 is disposed around the sealing member 3.

Specifically, the upper end of the casing 2, i.e., the end of the casing 2 located in the forward direction of the Z-axis in fig. 1 is generally open and is configured to cover the casing 1, and the first flange 21 is disposed at the end of the casing 2 configured to cover the casing 1, i.e., the upper end of the casing 2. The sealing element 3 is usually an annular sealing strip, which is usually fixedly mounted on the first flange 21 of the cover 1 or the housing 2 by means of a glue. The shape of the first flange 21 is generally adapted to the seal 3, i.e. the first flange 21 is also of annular configuration. Furthermore, the first flange 21 is arranged generally horizontally, i.e. the first flange 21 is arranged parallel to the XY-plane in fig. 1.

More specifically, the water deflector flange 11 is generally of annular configuration and extends downwardly, and the seal 3 is intended to be mounted inside the water deflector flange 11, which enables the water deflector flange 11 to provide a location for the mounting of the seal 3 to facilitate quick mounting of the seal 3. When the cover 1 and the case 2 are covered, as the sealing member 3 with certain elasticity is installed between the cover 1 and the case 2, a certain gap exists between the cover 1 and the case 2, when the water blocking flange 11 is not arranged, water flows in along the gap and impacts the sealing member 3, and if the impact pressure of the water flow is large, tiny elastic deformation is generated on the sealing member 3, so that the case 2 leaks.

In this embodiment, the first flange 21 is disposed at the end of the chassis 2 for covering the chassis cover 1, and the water-blocking flange 11 is located at the side of the chassis cover 1 facing the chassis 2, so as to block water flow from entering the gap between the chassis cover 1 and the chassis 2 in the circumferential direction of the water-blocking flange 11, so that the water-blocking flange 11 forms a first sealing waterproof structure to realize a waterproof effect; when the sealing member 3 is used for waterproof sealing, the water retaining flange 11 is used for retaining water, so that the sealing performance between the cover 1 and the case 2 can be improved more effectively. Moreover, the setting of manger plate turn-ups 11 can also reduce the clearance between cover 1 and the quick-witted case 2 to can reduce the impact pressure that the rivers flowed into this clearance, like this, the rivers that permeate manger plate turn-ups 11 the inboard at a small part can weaken the pressure of rivers because of manger plate turn-ups 11 block, under the effect that sealing member 3 was sealed waterproof construction as the second, can improve the water-proof effects to a great extent, guarantee the leakproofness.

Alternatively, as shown in fig. 2, 5 and 6, the first flange 21 is provided with a water-guiding groove 211 and a water-draining hole 212, the water-guiding groove 211 is arranged around the sealing member 3, the water-draining hole 212 is arranged in the water-guiding groove 211, and the water-retaining flange 11 is arranged in the water-guiding groove 211 in an inserted manner.

Specifically, the water diversion groove 211 is configured to be disposed along the circumferential direction of the annular sealing strip, and is located outside the area surrounded by the annular sealing strip. The drain hole 212 is provided in the water guide groove 211, and may be provided on the bottom wall of the water guide groove 211 or on the side wall of the water guide groove 211, for example, without being particularly limited herein.

In this embodiment, the water diversion groove 211 for surrounding the sealing member 3 is disposed on the first flange 21, so that the liquid such as rainwater penetrating into the gap between the cover 1 and the case 2 is collected in the water diversion groove 211, and meanwhile, the water drain hole 212 is disposed in the water diversion groove 211, so that the liquid in the water diversion groove 211 is drained, the box structure can realize a self-draining function, the waterproof capability of the box structure is effectively improved, the tightness between the cover 1 and the case 2 is ensured, and the service life of an inverter assembly in the case is prolonged. Moreover, under the condition that the sealing piece 3 is adopted for waterproof sealing and the water retaining flange 11 is utilized for retaining water, the box structure has the functions of water drainage and water prevention, and the tightness between the cover 1 and the case 2 is improved more effectively. In addition, on the basis that the water retaining flange 11 forms the first sealing waterproof structure, the water retaining flange 11 can also guide water flow impacting on the water retaining flange 11 to enter the water diversion groove 211, so that the water retaining flange 11 has both waterproof and drainage functions.

Further, as shown in fig. 3, a plurality of drain holes 212 are generally provided, and a plurality of drain holes 212 are provided at intervals along the water guide groove 211. In this way, it is ensured that liquid such as rainwater that has permeated between the cover 1 and the casing 2 from all directions can be discharged out of the casing 2 through the drain hole 212, and the drainage effect of the water diversion groove 211 is improved.

Alternatively, as shown in connection with fig. 2, the drain hole 212 is located on the side of the water deflector flange 11 facing away from the sealing member 3. In this way, the water flowing into the water diversion groove 211 can be discharged out of the case 2 from the water discharge hole 212 preferentially, and the water flow entering the inner side of the water retaining flange 11 is reduced.

In other examples, the drain hole 212 may also be provided on the side of the water deflector flange 11 facing the sealing member 3, i.e. the drain hole 212 is located inside the water deflector flange 11, in which case there should be a space between the water deflector flange 11 and the bottom wall of the water trough 211. In this way, the water flow entering the water guide groove 211 can be depressurized through the water blocking flange 11 and then discharged from the water drain hole 212 together with the water flow penetrating into the inner side of the water blocking flange 11.

Alternatively, as shown in connection with fig. 4, the drain hole 212 is provided at the junction of the bottom wall and the side wall of the water guide groove 211.

In the present embodiment, the water drain groove 211 is generally provided to be relatively narrow due to the limitation of the structure, and if the water drain hole 212 is opened in the bottom wall of the water drain groove 211, the opening area of the water drain hole 212 is also made relatively small. Therefore, in this embodiment, the drain hole 212 is formed at the junction between the bottom wall and the side wall of the water channel 211, so that the open area of the drain hole 212 is increased and the drain effect is improved while the drain function is ensured.

In other examples, the drain hole 212 may also be provided on the bottom wall of the water trough 211, or on the side wall of the water trough 211. Wherein, when the drain hole 212 is provided on the sidewall of the water guide groove 211, the drain hole 212 is generally provided at the lower end of the sidewall of the water guide groove 211 to facilitate drainage.

Optionally, as shown in connection with fig. 3, the water deflector flange 11 is spaced from the bottom wall of the water trough 211. In this way, the gap between the cover 1 and the case 2 is communicated with the water diversion groove 211, so that water flow penetrating into the inner side of the water retaining flange 11 can be conveniently discharged out of the case 2 through the water diversion groove 211 and the water discharge hole 212.

In other examples, the water blocking flange 11 may abut against the bottom of the water diversion groove 211. At this time, the drain hole 212 is provided on the side of the water deflector flange 11 facing away from the sealing member 3, i.e., on the outer side of the water deflector flange 11. In this way, the water retaining flange 11 is abutted against the bottom of the water diversion groove 211, so that the probability of water flow penetrating into the inner side of the water retaining flange 11 can be reduced, and the tightness of the box structure can be improved.

Alternatively, as shown in fig. 3 and 4, the water diversion groove 211 is formed by downwardly recessing a partial portion of the first flange 21. This makes it possible to not only reduce the thickness dimension of the first flange 21 but also improve the structural strength of the first flange 21 at the water-guiding groove 211, as compared with the case where the water-guiding groove 211 is formed by using a partial structure cut out on the first flange 21. In practice, the water-guiding groove 211 may be formed by cutting out a part of the first flange 21, or a part of the first flange 21 may be recessed downward to form the water-guiding groove 211, but the latter is generally preferable,

Alternatively, the bottom wall of the water guide groove 211 is provided obliquely downward away from the end of the seal member 3. At this time, the drain hole 212 is provided at the junction of the bottom wall and the side wall of the water guide groove 211. In this way, the water in the water diversion groove 211 can be conveniently and rapidly discharged out of the machine case 2, and the risk of water remaining in the water diversion groove 211 is reduced.

In other examples, the bottom wall of the water-guiding groove 211 may be horizontally disposed to improve convenience of processing and manufacturing while the water-guiding groove 211 achieves a self-draining function.

Alternatively, as shown in connection with fig. 5 and 6, the cover 1 is provided with a second flange 12, the second flange 12 being arranged extending downwards and being arranged around the first flange 21.

In the present embodiment, the second flange 12 may be provided to extend directly downward or may be provided to extend obliquely downward, and for example, fig. 5 shows an example in which the second flange 12 is provided to extend directly downward. When the cover 1 and the case 2 are covered, the cover 1 is covered at the upper end of the case 2, that is, the first flange 21 of the case 2 is located in the area surrounded by the second flange 12 of the cover 1. In this way, the provision of the second flange 12 can improve the rigidity of the cover 1 on the one hand and can achieve the primary waterproof effect as the first waterproof structure on the other hand, thereby reducing the flow rate and the impact pressure of the water flow entering the water-guiding groove 211.

Optionally, as shown in fig. 5 and fig. 6, a convex hull 13 is further protruding on a side of the cover 1 facing the chassis 2, the convex hull 13 is disposed between the water retaining flange 11 and the second flange 12, and a mounting hole 131 is disposed on the convex hull 13, and the cover 1 is used for being detachably connected with the first flange 21 of the chassis 2 at the mounting hole 131.

In this embodiment, the convex hulls 13 are generally disposed at a central position between the second flange 12 and the water blocking flange 11, and are generally provided in plurality, the convex hulls 13 are disposed at intervals around the water blocking flange 11, and each convex hull 13 is provided with a mounting hole 131. Thus, the cover 1 and the case 2 can be detachably connected by adopting fasteners such as screws at the mounting holes 131, and the convex hulls 13 can improve the structural strength of the mounting holes 131, and can ensure that the sealing element 3 is uniformly extruded when the cover 1 and the case 2 are assembled, so that the sealing effect is improved.

Another embodiment of the present utility model provides an inverter including the case structure as described above.

The inverter in this embodiment has the same beneficial effects as the above-mentioned box structure compared with the prior art, and will not be described here again.

Still another embodiment of the present utility model provides an electric power system including the case structure as described above, or including the inverter as described above.

The electric power system in this embodiment has the same beneficial effects as the above-mentioned box structure compared with the prior art, and will not be described here again.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The box body structure is characterized by comprising a cover (1), a machine case (2) and a sealing piece (3); wherein:

The machine case (2) is used for being equipped with first turn-ups (21) with the one end that cover (1) closed, sealing member (3) are located between cover (1) and first turn-ups (21), cover (1) orientation one side of machine case (2) is equipped with manger plate turn-ups (11), just manger plate turn-ups (11) are used for encircleing sealing member (3) setting.

2. The box structure according to claim 1, characterized in that the first flange (21) is provided with a water diversion groove (211) and a water drain hole (212), the water diversion groove (211) is used for being arranged around the sealing piece (3), the water drain hole (212) is arranged in the water diversion groove (211), and the water retaining flange (11) is used for being inserted in the water diversion groove (211).

3. The tank structure according to claim 2, characterized in that the drain hole (212) is located on the side of the water deflector flange (11) facing away from the sealing element (3).

4. A tank structure according to claim 3, characterized in that the drain hole (212) is provided at the junction of the bottom wall and the side wall of the water trough (211).

5. The tank structure according to claim 2, characterized in that the water deflector flange (11) is spaced from the bottom wall of the water trough (211).

6. The tank structure according to claim 2, characterized in that the water-guiding groove (211) is formed by a downward depression of a local part of the first flange (21).

7. A tank structure according to claim 4, characterized in that the bottom wall of the water trough (211) is arranged inclined downwards away from the end of the sealing element (3).

8. The box body structure according to claim 2, characterized in that a convex hull (13) is convexly arranged on one side of the cover (1) facing the machine box (2), the convex hull (13) is used for surrounding the water diversion groove (211), a mounting hole (131) is formed in the convex hull (13), and the cover (1) is used for being detachably connected with the first flanging (21) of the machine box (2) at the mounting hole (131).

9. An inverter comprising the tank structure of any one of claims 1-8.

10. An electric power system comprising the tank structure of any one of claims 1-8, or comprising the inverter of claim 9.