CN220605291U

CN220605291U - Electrical cabinet and electrical equipment with same

Info

Publication number: CN220605291U
Application number: CN202322307447.0U
Authority: CN
Inventors: 李行; 彭琦允; 唐建明; 郭继豪
Original assignee: Shenzhen Tongye Technology Co ltd
Current assignee: Shenzhen Tongye Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-03-15
Anticipated expiration: 2033-08-25

Abstract

The application discloses an electrical cabinet and have its electrical equipment relates to electrical equipment technical field. The electrical cabinet comprises a cabinet body, a cover plate and a fastener. The cabinet body is provided with an opening, a first through hole is formed in the edge of the opening, the cover plate covers the opening and is used for closing the opening, a second through hole opposite to the first through hole is formed in the edge of the cover plate, an annular protrusion is arranged at one end, close to the cover plate, of the first through hole, a connecting piece is arranged at one end, far away from the cover plate, of the first through hole, and a fastener penetrates through the second through hole, the annular protrusion and the first through hole and is connected with the connecting piece in a detachable mode. The application provides an regulator cubicle, apron and the cabinet body form the contact through annular protrusion, like this, use fastener and connecting piece to fasten the back to apron and cabinet body, can accomplish the cabinet body and the electricity of apron is connected, need not to use the yellow-green line, the dismantlement and the installation of apron of being convenient for have improved the dismouting efficiency of apron.

Description

Electrical cabinet and electrical equipment with same

Technical Field

The application relates to the technical field of electrical equipment, in particular to an electrical cabinet and electrical equipment with the same.

Background

As shown in fig. 1, in the grounding mode of the conventional electrical cabinet, grounding members are generally disposed on a cover plate and a cabinet body respectively, then a yellow-green wire is connected between the two grounding members by using screws, so that the cover plate is electrically connected with the cabinet body, and finally the whole electrical cabinet is grounded. The grounding structure of the electrical cabinet is characterized in that when the cover plate is dismounted, the screws at the two ends of the yellow-green wire are dismounted in addition to the screws on the cover plate, so that the operation is very inconvenient, the operable space between the cover plate and the cabinet body is small, and the operation is difficult. The same problem exists when installing the cover plate.

Disclosure of Invention

In view of this, the purpose of this application provides an regulator cubicle and has its electrical equipment, aims at solving among the prior art through the structure that the yellow-green line realized cabinet body and apron electricity be connected, inconvenient, the difficult technical problem of operation when dismantling and installing the apron.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

in a first aspect, embodiments of the present application provide an electrical cabinet comprising:

the cabinet body is provided with an opening, and a first through hole is formed in the edge of the opening;

the cover plate is covered at the opening and is used for closing the opening, a second through hole opposite to the first through hole is formed in the edge of the cover plate, an annular protrusion is arranged at one end, close to the cover plate, of the first through hole, and a connecting piece is arranged at one end, far away from the cover plate, of the first through hole;

the fastener is arranged in the second through hole in a penetrating mode, the annular protrusion is connected with the first through hole in a detachable mode, so that the annular protrusion is respectively contacted with the cover plate and the cabinet body, and the cabinet body is electrically connected with the cover plate through the annular protrusion.

In one embodiment of the first aspect, the fastener is a screw fastening element, and the connecting piece is a nut, and a screw of the screw fastening element is threaded through the nut and is connected with the nut in a screwing manner.

In one embodiment of the first aspect, the nut is a blind rivet nut, the blind rivet nut has a threaded hole, the blind rivet nut is riveted at the first through hole, a screw of the screw fastening element is in threaded connection with a hole wall of the threaded hole, and the annular protrusion is a portion protruding out of the cabinet body after the blind rivet nut is riveted.

In one embodiment of the first aspect, the nut is a screwing nut, the screwing nut is fixed at one end of the first through hole away from the cover plate, the screwing nut is provided with a threaded hole penetrating through the first through hole, the annular protrusion is an annular gasket, and the screw of the screw fastening element penetrates through the threaded hole and is in threaded connection with the hole wall of the threaded hole.

In one embodiment of the first aspect, the electrical cabinet further includes a lock washer sleeved on the screw of the screw fastening element and abutting between the head of the screw fastening element and the cover plate.

In one embodiment of the first aspect, the annular protrusion is an annular boss stamped and formed on the cabinet.

In one embodiment of the first aspect, the electrical cabinet further includes an annular sealing strip, the open edge is provided with a first annular folded edge, a second annular folded edge is disposed along the circumferential direction of the cover plate, the annular sealing strip is attached to the first annular folded edge and between the second annular folded edge, the first annular folded edge is provided with a first through hole, the second annular folded edge is provided with a second through hole, the annular sealing strip is provided with an avoidance through hole, and the annular protrusion is located at the avoidance through hole.

In one embodiment of the first aspect, a thickness T1 of the annular sealing strip along a center line direction of the first through hole, and a thickness T2 of the annular protrusion along the center line direction of the first through hole satisfy the following relation: t1 is more than or equal to 0.5T1 and less than or equal to T2 and less than or equal to T1.

In one embodiment of the first aspect, the annular protrusion is in surface contact with the cabinet and the cover plate, respectively.

In a second aspect, embodiments of the present application also provide an electrical apparatus comprising an electrical cabinet as described in any of the embodiments above.

The beneficial effects of this application are:

the application provides an regulator cubicle, when the assembly apron, with the apron lid in uncovered department, use the fastener to pass second through-hole, annular protrusion and first through-hole in proper order and be connected with the connecting piece then to fasten the apron and the cabinet body, accomplish the installation of apron, at this moment, the apron forms the contact through annular protrusion with the cabinet body, can satisfy the ground connection demand to the regulator cubicle whole ground connection at last, need not to use the yellow-green line, the dismantlement and the installation of apron of being convenient for have improved the dismouting efficiency of apron.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered limiting the scope, and that other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic view of the internal structure of a conventional electrical cabinet;

FIG. 2 illustrates a schematic view of a perspective structure of an electrical cabinet in accordance with some embodiments of the present application;

FIG. 3 illustrates an exploded view of another perspective structure of an electrical cabinet in some embodiments of the present application;

FIG. 4 shows a schematic diagram of the structure of the portion A in FIG. 3;

FIG. 5 illustrates yet another perspective structural schematic of an electrical cabinet in some embodiments of the present application;

FIG. 6 shows a schematic cross-sectional view of the electrical cabinet of FIG. 5 at B-B;

FIG. 7 is a schematic view showing the structure of the portion C in FIG. 6;

fig. 8 shows an exploded view of the structure of the portion C in fig. 6.

Description of main reference numerals:

100-an electrical cabinet; 110-a cabinet body; 111-open; 112-a first through hole; 113-a first annular flap; 120-cover plate; 121-a second annular flange; 122-a second via; 130-fasteners; 131-a screw; 132-head; 140-connectors; 141-annular protrusions; 142-threaded holes; 150-a lock washer; 160-annular sealing strips; 161-avoiding the through hole; 170-grounding member; 200-yellow-green line.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

As shown in fig. 2, in one aspect, an embodiment of the present application provides an electrical cabinet 100, which relates to the technical field of electrical equipment, and is mainly applied to any electrical equipment that needs grounding, and is used for protecting electrical elements in the electrical equipment.

As shown in fig. 3, 4, and 8, the electrical cabinet 100 mainly includes: the cabinet 110, the cover 120, and the fastener 130.

The cabinet body 110 has an opening 111, a first through hole 112 is formed in an edge of the opening 111, the cover plate 120 covers the opening 111 of the cabinet body 110 and is used for closing the opening 111, a second through hole 122 is formed in an edge of the cover plate 120, the second through hole 122 is opposite to the first through hole 112, an annular protrusion 141, such as a U-shaped protrusion, a circular ring-shaped protrusion, a semicircular arc protrusion, is disposed at one end of the first through hole 112, which is close to the cover plate 120, and a connecting piece 140 is disposed at one end of the first through hole 112, which is far away from the cover plate 120.

The fastener 130 is inserted through the second through hole 122, the annular protrusion 141 and the first through hole 112, and the fastener 130 is detachably connected with the connecting member 140, such as a threaded connection, a clamping connection, a locking connection, an interference fit, etc., so that the annular protrusion 141 is respectively contacted with the cover plate 120 and the cabinet 110, and the cabinet 110 is electrically connected with the cover plate 120 through the annular protrusion 141.

For example, when the cover plate 120 is assembled, the cover plate 120 is covered at the opening 111, and then the fastener 130 sequentially passes through the second through hole 122, the annular protrusion 141 and the first through hole 112 to be connected with the connecting piece, so as to fasten the cover plate 120 and the cabinet 110, and complete the installation of the cover plate 120, at this time, the cover plate 120 and the cabinet 110 are in contact with each other through the annular protrusion 141, and finally the whole electrical cabinet 100 is grounded, so as to meet the grounding requirement.

The existing electrical cabinet is characterized in that the cover plate and the cabinet body are two independent parts and are installed together through screws, meanwhile, the general surface of the electrical cabinet is required to be sprayed, and sealing strips are usually arranged between the cover plate and the cabinet body to be separated due to the sealing requirement, so that the cover plate and the cabinet body cannot be directly contacted, and the grounding requirement cannot be met. As shown in fig. 1, grounding members are generally disposed on the cover plate and the cabinet body, and then a yellow-green wire 200 is connected between the two grounding members by screws, so that the cover plate is electrically connected with the cabinet body, and finally the whole electric cabinet is grounded.

However, in the above-mentioned electrical cabinet grounding structure, when the cover plate is detached, besides the screws on the cover plate, the screws at two ends of the yellow-green wire 200 need to be detached, so that the operation is very inconvenient, and the yellow-green wire 200 is damaged due to the need of preventing the long-term shaking, so that the length of the yellow-green wire 200 is not suitable to be too long, resulting in smaller operable space between the cover plate and the cabinet body and more difficult operation. The above-mentioned inconvenience and difficulty of operation also exist in installing the cover plate.

It can be appreciated that, in the electrical cabinet 100 provided in this embodiment, the cover plate 120 is in contact with the cabinet body 110 through the annular protrusion 141, so that after the cover plate 120 and the cabinet body 110 are fastened by using the fastener 130, the electrical connection between the cabinet body 110 and the cover plate 120 can be completed, without using the yellow-green wire 200, so that the cover plate 120 is convenient to detach and install, and the detachment efficiency of the cover plate 120 is improved.

In one embodiment, the fastener 130 is a screw-type fastening element, the connector 140 is a nut, and the screw 131 of the screw-type fastening element is threaded through the nut and is screwed with the nut.

Illustratively, the screw fastening element may be a screw, a bolt, or the like having a threaded shaft 131 to facilitate a threaded connection with a nut via the threaded shaft 131.

It can be appreciated that when the cover plate 120 and the cabinet body 110 are fastened by using the screw fastening element and the nut, a sufficient pressing force can be applied to the cover plate 120 by screwing the screw fastening element, so that the annular protrusion 141 is in closer contact with the cover plate 120 and the cabinet body 110, thereby improving the reliability of the electrical connection between the cabinet body 110 and the cover plate 120, further ensuring more reliable grounding of the electrical cabinet 100, and reducing the risk of leakage of the electrical cabinet 100.

In one embodiment, as shown in fig. 8, the nut is a blind rivet nut, the blind rivet nut has a threaded hole 142, the blind rivet nut is riveted at the first through hole 112, the screw 131 of the screw fastening element is in threaded connection with the hole wall of the threaded hole 142, and the annular protrusion 141 is a portion protruding from the cabinet 110 after the blind rivet nut is riveted.

It can be appreciated that, compared with the manner of using the yellow-green wire 200 in the prior art, the cover plate 120 and the cabinet 110 of the present embodiment achieve reliable contact between the cabinet 110 and the cover plate 120 through the portion protruding from the cabinet 110 after the riveting of the rivet nut. Because the rivet nut is a standard component and is directly riveted on the cabinet body 110, the cover plate 120 and the cabinet body 110 do not need to be provided with grounding components independently, and the use of a grounding structure is saved. Meanwhile, as the rivet nut replaces the yellowish green wire 200, only the screw fastening element on the cover plate 120 needs to be disassembled when the cover plate 120 is disassembled, so that the disassembly efficiency is higher. In addition, the risk that the yellow-green wire 200 is torn off in the using process of the electrical cabinet 100 does not exist, the mode that the screw fastening element is matched with the rivet nut is more reliable in structure, and potential safety hazards are reduced.

As shown in fig. 5 to 8, further, the electrical cabinet 100 further includes a lock washer 150, such as a spring washer or a flat washer, where the lock washer 150 is sleeved on the screw 131 of the screw fastening element and is disposed between the head 132 and the cover plate 120 of the screw fastening element, so as to prevent the screw fastening element from loosening, so that the contact between the annular protrusion 141 and the cover plate 120 and the cabinet body 110 is more reliable, and thus the electrical cabinet 100 leakage risk caused by the loosening of the screw fastening element is effectively reduced.

In another specific embodiment, the nut is a threaded nut, such as a square nut, a hexagonal nut, a locknut, or the like, and the threaded nut is fixed at an end of the first through hole 112 far from the cover plate 120, such as by welding or clamping, and the threaded nut has a threaded hole 142 passing therethrough, the annular protrusion 141 is an annular washer, and the screw 131 of the screw fastening element is threaded through the threaded hole 142 and is in threaded connection with a wall of the threaded hole 142.

Illustratively, when the cover plate 120 is installed, the annular gasket is sleeved on the screw 131 of the screw fastening element, the screw 131 sequentially passes through the second through hole 122, the first through hole 112 and the threaded hole 142 of the screwing nut to be screwed, and the installation of the cover plate 120 can be completed, at this time, the annular gasket is respectively contacted with the cabinet body 110 and the cover plate 120, so that the cabinet body 110 is electrically connected with the cover plate 120 through the annular gasket.

It can be appreciated that the above structure can also realize the electrical connection between the cabinet 110 and the cover 120 without using the yellow-green wire 200, and can also improve the assembly and disassembly efficiency of the cover 120.

It should be noted that the above only exemplifies a preferred manner of the fastener 130 and the connecting piece 140, in another embodiment, the fastener 130 may also be a buckle, and the connecting piece 140 may be a limiting piece with a clamping groove, where the buckle may be clamped at the clamping groove to fasten the cover plate 120 and the cabinet body 110, and the annular protrusion 141 may also reliably contact the cabinet body 110 and the cover plate 120, so as to facilitate grounding of the electrical cabinet 100.

In addition, the annular protrusion 141 is not limited to the form of the annular spacer and the rivet nut, and the annular protrusion 141 may be an annular protrusion formed by punching on the cabinet 110, so as to electrically connect the cabinet 110 and the cover 120 through the annular protrusion.

Referring to fig. 3 and 4, in an embodiment, the electrical cabinet 100 further includes an annular sealing strip 160, a first annular flange 113 is disposed at an edge of the opening 111, a second annular flange 121 is disposed along a circumferential direction of the cover plate 120, the annular sealing strip 160 is attached between the first annular flange 113 and the second annular flange 121, the first annular flange 113 is provided with a first through hole 112, the second annular flange 121 is provided with a second through hole 122, the annular sealing strip 160 is provided with an avoidance through hole 161, and the annular protrusion 141 is located at the avoidance through hole 161.

It will be appreciated that by providing the annular seal 160, the tightness of the electrical cabinet 100 can be improved, thereby reducing the risk of dust and moisture entering the cabinet 110 and reducing the potential safety hazard. By the arrangement of the avoidance through holes 161 on the annular sealing strip 160, the reliable contact between the annular protrusion 141 and the cabinet body 110 and the cover plate 120 after the annular sealing strip 160 is arranged can be avoided.

It should be noted that, when the cover plate 120 and the cabinet 110 are fastened by using the fastener 130 and the connector 140, the annular sealing strip 160 is compressed by the compression of the cover plate 120, so that the annular protrusion 141 can still reliably contact with the cabinet 110 and the cover plate 120.

As shown in fig. 8, further, the thickness T1 of the annular seal strip 160 along the center line direction of the first through hole 112 and the thickness T2 of the annular protrusion 141 along the center line direction of the first through hole 112 satisfy the relationship: t1 is greater than or equal to 0.5T2 and less than or equal to T1, namely, the thickness T2 of the annular protrusion 141 accounts for more than 50% of the thickness T1 of the annular sealing strip 160.

It will be appreciated that by providing the annular sealing strip 160 and the annular protrusion 141 satisfying the above relation, not only can the cover plate 120 and the cabinet 110 be effectively sealed, but also the annular sealing strip 160 can have a sufficient compression amount to ensure that the contact between the annular protrusion 141 and the cabinet 110 and the cover plate 120 is more reliable after the cover plate 120 is connected with the cabinet 110. In this way, the potential safety hazard of the electrical cabinet 100 can be effectively reduced.

Illustratively, the thickness T2 of the annular protrusion 141 may be set to 0.5t1, 0.6T1, 0.7T1, 0.8T1, 0.9T1, etc., although the thickness T2 of the annular protrusion 141 and the thickness T1 of the annular seal strip 160 may also be set to be equal.

In one embodiment, the annular protrusion 141 is in surface contact with the cabinet body 110 and the cover plate 120 respectively, and compared with a line contact mode, the surface contact has higher contact reliability, so that the leakage risk of the electrical cabinet 100 can be reduced, and the potential safety hazard can be reduced.

As shown in fig. 2, in one embodiment, the annular protrusion 141, the first through hole 112 and the second through hole 122 are provided in plurality, and one annular protrusion 141 is provided at each of the first through holes 112, and accordingly, the number of the fastening members 130 and the connection members 140 is adapted to the number of the annular protrusions 141.

It can be appreciated that by providing the plurality of annular protrusions 141, the reliability of the electrical connection between the cabinet 110 and the cover plate 120 can be effectively improved, and the risk of leakage can be reduced, thereby reducing the probability of occurrence of a safety accident.

As shown in fig. 2, in one embodiment, the electrical cabinet 100 further includes a ground 170, the ground 170 being coupled to the cabinet 110. It will be appreciated that by the arrangement of the grounding member 170, grounding of the electrical cabinet 100 as a whole is facilitated.

In a second aspect, embodiments of the present application also provide an electrical apparatus including the electrical cabinet 100 in any of the embodiments described above.

By way of example, the electrical equipment may be train power cabinets, emergency inverters, air conditioning power supplies, etc. that require grounding.

It can be appreciated that, since the electrical apparatus provided in this embodiment has the electrical cabinet 100 in any of the above embodiments, the electrical cabinet 100 has all the beneficial effects, and will not be described in detail herein.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. An electrical cabinet, comprising:

2. The electrical cabinet according to claim 1, wherein the fastener is a screw fastening element and the connecting member is a nut, and a screw of the screw fastening element is threaded through the nut and is screwed with the nut.

3. The electrical cabinet of claim 2, wherein the nut is a blind rivet nut having a threaded hole, the blind rivet nut being riveted to the first through hole, the screw of the screw fastening element being threadedly connected to the wall of the threaded hole, the annular protrusion being a portion of the blind rivet nut protruding from the cabinet body after being riveted.

4. The electrical cabinet of claim 2, wherein the nut is a threaded nut secured to an end of the first through hole remote from the cover plate, the threaded nut having a threaded bore therethrough, the annular projection being an annular washer, the screw of the screw-type fastening element being threaded through the threaded bore and in threaded engagement with a bore wall of the threaded bore.

5. The electrical cabinet of claim 2, further comprising a lock washer disposed about the screw of the screw fastener element and abutting between the head of the screw fastener element and the cover plate.

6. The electrical cabinet of claim 1, wherein the annular protrusion is an annular boss stamped from the cabinet body.

7. The electrical cabinet of any one of claims 1 to 6, further comprising an annular sealing strip, wherein the open edge is provided with a first annular flange, a second annular flange is provided along a circumference of the cover plate, the annular sealing strip is attached between the first annular flange and the second annular flange, the first annular flange is provided with the first through hole, the second annular flange is provided with the second through hole, the annular sealing strip is provided with an avoidance through hole, and the annular protrusion is located at the avoidance through hole.

8. The electrical cabinet according to claim 7, wherein a thickness T1 of the annular seal strip in a direction of a center line of the first through hole, and a thickness T2 of the annular protrusion in a direction of a center line of the first through hole satisfy the relation: t1 is more than or equal to 0.5T1 and less than or equal to T2 and less than or equal to T1.

9. The electrical cabinet according to any one of claims 1 to 6, wherein the annular protrusions are in surface contact with the cabinet body and the cover plate, respectively.

10. An electrical apparatus comprising an electrical cabinet according to any one of claims 1 to 9.