CN210640776U - Explosion-proof junction box and explosion-proof motor - Google Patents
Explosion-proof junction box and explosion-proof motor Download PDFInfo
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- CN210640776U CN210640776U CN201921091421.4U CN201921091421U CN210640776U CN 210640776 U CN210640776 U CN 210640776U CN 201921091421 U CN201921091421 U CN 201921091421U CN 210640776 U CN210640776 U CN 210640776U
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Abstract
The utility model discloses an explosion-proof terminal box and explosion-proof machine, explosion-proof terminal box include box body, lid and connecting plate, and connecting plate detachably locates in the box body. The connecting plate is provided with a wiring terminal for connecting a motor lead. During installation, the motor lead is connected into the wiring terminal, the connecting plate connected with the motor lead is fixedly installed in the box body, and finally the box cover is covered. Because the wiring process is not limited to the operation in the box body, the wiring operation is convenient, the size of the box body can be reduced as much as possible under the condition of meeting the wiring requirement, the integral size of the junction box can be greatly reduced, and the size of the explosion-proof motor is reduced.
Description
Technical Field
The utility model relates to an explosion-proof equipment technical field especially relates to an explosion-proof terminal box and explosion-proof machine.
Background
The interior of the explosion-proof motor needs to be provided with an independent wiring cavity so as to meet the explosion-proof requirement. In the existing explosion-proof motor, a junction box is arranged in the explosion-proof motor to form an independent wiring cavity. The junction box is usually integrated with the motor, and the junction box is directly provided with a wiring terminal, and a motor lead is connected with the wiring terminal. In order to facilitate the installation and connection of the motor lead and the terminal block, the terminal block is generally large in size, so that a sufficient wiring operation space is provided for an operator, and the overall size of the motor is increased to a certain extent. For the mining motor, the motor with larger volume provides inconvenience for operation because the operation space under the mine is smaller.
The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.
Disclosure of Invention
In view of this, the utility model provides an explosion-proof terminal box through set up the wiring board that can dismantle in the terminal box, reduces the terminal box volume, and then reduces the explosion-proof machine volume.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
an explosion-proof junction box comprising: a box body; the connecting plate is detachably arranged in the box body, and a wiring terminal is arranged on the connecting plate; the box cover is arranged on the box body.
Further, still include a lead wire section of thick bamboo, it with the box body is connected, the motor lead wire warp lead wire section of thick bamboo with binding post connects.
Further, the lead cylinder is welded with the box body.
Further, the lead cylinder is in threaded connection with the box body.
Further, the connecting plate is connected with the box body through a bolt.
Further, the connecting plate comprises a first connecting plate part and a second connecting plate part, the second connecting plate part is arranged on the periphery of the first connecting plate part, and the height of the first connecting plate part is greater than that of the second connecting plate part; a first through hole and a second through hole are formed in the box body, the diameter of the first through hole is smaller than that of the second through hole, and a transition surface is arranged between the first through hole and the second through hole; the part of the first connecting plate, which is higher than the second connecting plate, is positioned in the first through hole, and the second connecting plate is connected with the transition surface.
Furthermore, the connecting plate is provided with the wiring terminal on one part.
Further, an explosion-proof gap is formed between the side peripheral wall of the second connecting plate and the inner peripheral wall of the second through hole.
Furthermore, the side wall of the box body is provided with an external connection part.
The utility model also provides an explosion-proof machine, including motor casing, be equipped with as above on the motor casing explosion-proof terminal box.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
the utility model provides an explosion-proof terminal box and explosion-proof machine, explosion-proof terminal box include box body, lid and connecting plate, and in the box body was located to connecting plate detachably, the upper portion of box body was located to the lid. The connecting plate is provided with a wiring terminal for connecting a motor lead. During installation, the motor lead is connected into the wiring terminal, the connecting plate connected with the motor lead is fixedly installed in the box body, and finally the box cover is covered. Because the wiring process is not limited to the operation in the box body, the wiring operation is convenient, the size of the box body can be reduced as much as possible under the condition of meeting the wiring requirement, the integral size of the junction box can be greatly reduced, and the size of the explosion-proof motor is reduced.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a first schematic structural diagram of an embodiment of an explosion-proof junction box of the present invention;
FIG. 2 is a schematic structural diagram II of an embodiment of the explosion-proof junction box of the present invention;
fig. 3 is a bottom view of the connection plate of the present invention;
fig. 4 is a sectional view taken along line a-a in fig. 3.
The anti-explosion connector comprises a connecting plate, a connecting plate part I, a connecting plate part II, a connecting plate part;
h 1-height of the first connecting plate, h 2-height of the second connecting plate; d 1-the diameter of the first through hole, d 2-the diameter of the second through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The utility model discloses an explosion-proof terminal box, refer to fig. 1 and fig. 2, wherein do not install connecting plate 100 in fig. 1. The explosion-proof junction box comprises a box body 200, a box cover 300 and a connecting plate 100, wherein the connecting plate 100 is detachably arranged in the box body 200, and the box cover 300 is arranged at the upper part of the box body 200. The connection board 100 is provided with a connection terminal 400 for connecting a motor lead. During installation, the motor lead is firstly connected to the wiring terminal 400, then the connecting plate 100 connected with the motor lead is fixedly installed in the box body 200, and finally the box cover 300 is covered. Because the wiring process is not limited to the operation in the box body 200, the wiring operation is convenient, the size of the box body 200 can be reduced as much as possible under the condition of meeting the wiring requirement, and the integral volume of the junction box can be greatly reduced, thereby being beneficial to reducing the volume of the explosion-proof motor.
As a preferred embodiment, the connecting plate 100 is connected with the box body 200 through bolts, so that the detachable connection between the connecting plate 100 and the box body 200 is realized, the structure is simple, and the installation and the detachment are convenient.
The box body 200 of this embodiment is a cylindrical structure, the upper portion of the box body 200 has an opening (not labeled), and the box cover 300 is in threaded connection with the opening on the upper portion of the box body 200, so as to facilitate the installation and detachment of the box cover 300.
Structure of the connection plate 100 referring to fig. 3 and 4, the cross-sectional shape of the connection plate 100 is circular to accommodate the fitting connection with the cylindrical case 200. The connecting plate 100 comprises a first connecting plate part 110 and a second connecting plate part 120, the second connecting plate part 120 is arranged on the periphery of the first connecting plate part 110, and the height h1 of the first connecting plate part 110 is greater than the height h2 of the second connecting plate part 120. Correspondingly, a first through hole 210 and a second through hole 220 are arranged in the box body 200, the diameter d1 of the first through hole 210 is smaller than the diameter d2 of the second through hole 220, a transition surface 230 is arranged between the first through hole 210 and the second through hole 220, and the transition surface 230 extends horizontally. The portion of the first connecting plate portion 110 higher than the second connecting plate portion 120 is located in the first through hole 210, and the second connecting plate portion 120 is connected to the transition surface 230.
Specifically, the portion of the first connecting plate portion 110 higher than the second connecting plate portion 120 is in clearance fit with the first through hole 210, so that the first connecting plate portion 110 can conveniently extend into the first through hole 210, and assembly is facilitated. The second connecting plate part 120 is connected with the transition surface 230 through bolts, so that the detachable connection of the connecting plate 100 is realized. The assembly between the first connecting plate portion 110 and the first through hole 210 also plays a certain positioning and guiding role, so that the second connecting plate portion 120 can be smoothly guided into the second through hole 220. As can be seen from fig. 3, the second connecting plate portion 120 is provided with four second threaded holes 121 along the circumferential direction thereof, and the bolts 800 are inserted into the second threaded holes 121, so that the connection between the second connecting plate portion 120 and the transition surface 230 is more reliable, and the single-edge tilting of the second connecting plate portion 120 is avoided.
The first connecting plate 110 is provided with a connecting terminal 400, specifically, the first connecting plate 110 is provided with three first threaded holes 111, and the connecting terminal 400 is screwed with the first threaded holes 111.
An explosion-proof gap 700 is formed between the side peripheral wall 122 of the second connecting plate part 120 and the inner peripheral wall of the second through hole 220, the explosion-proof gap 700 is not larger than 0.4mm, and the width of a contact surface between the two is not smaller than 12.5mm, so that the explosion-proof requirement of GB 3836.2-2010 is met.
The explosion-proof junction box of the embodiment further comprises a lead barrel 500 which is arranged at the lower part of the box body 200, and the motor lead is connected with the wiring terminal 400 through the lead barrel 500. The lead cylinder 500 plays a role in guiding and accommodating the motor lead, and the motor lead can be prevented from being twisted in the wiring process by matching with the connecting plate 100, so that the motor lead is prevented from being damaged.
The wire barrel 500 has a cylindrical structure, and two connection methods are provided between the wire barrel and the box body 200. The first is that the wire barrel 500 is fixedly connected with the bottom of the box body 200 by welding. The second is that the lead tube 500 is fixedly connected with the bottom of the box body 200 in a threaded connection manner, so that the box body 200 can be integrally detached, and further wiring is facilitated.
The side wall of the box body 200 is provided with an external connection part 600 for facilitating the external connection of a cable.
The utility model discloses still disclose an explosion-proof machine, including motor casing, the last explosion-proof terminal box that is equipped with this embodiment and discloses of motor casing.
The lead tube 500 is connected with the motor shell, preferably in threaded connection, so that the explosion-proof junction box can be detached conveniently, and wiring is facilitated.
In order to meet the explosion-proof requirement, when all the parts are connected in a threaded manner, the threads are all provided with explosion-proof threads.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. An explosion-proof junction box, comprising:
a box body;
the connecting plate is detachably arranged in the box body, and a wiring terminal is arranged on the connecting plate;
the box cover is arranged on the box body;
the connecting plate comprises a first connecting plate part and a second connecting plate part, the second connecting plate part is arranged on the periphery of the first connecting plate part, and the height of the first connecting plate part is greater than that of the second connecting plate part;
a first through hole and a second through hole are formed in the box body, the diameter of the first through hole is smaller than that of the second through hole, and a transition surface is arranged between the first through hole and the second through hole;
the part of the first connecting plate, which is higher than the second connecting plate, is positioned in the first through hole, and the second connecting plate is connected with the transition surface;
an explosion-proof gap is formed between the side peripheral wall of the second connecting plate and the inner peripheral wall of the second through hole.
2. The explosion-proof junction box of claim 1, further comprising:
and the lead cylinder is connected with the box body, and a motor lead passes through the lead cylinder and is connected with the wiring terminal.
3. The explosion-proof terminal block of claim 2,
the lead cylinder is welded with the box body.
4. The explosion-proof terminal block of claim 2,
the lead cylinder is in threaded connection with the box body.
5. The explosion-proof terminal block of claim 1,
the connecting plate is connected with the box body through a bolt.
6. The explosion-proof terminal block of claim 1,
the connecting plate is provided with the wiring terminal on one part.
7. The explosion-proof terminal block of claim 1,
the side wall of the box body is provided with an external connection part.
8. An explosion-proof motor comprises a motor shell and is characterized in that,
an explosion-proof junction box as claimed in any one of claims 1 to 7 is provided on the motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091421.4U CN210640776U (en) | 2019-07-12 | 2019-07-12 | Explosion-proof junction box and explosion-proof motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091421.4U CN210640776U (en) | 2019-07-12 | 2019-07-12 | Explosion-proof junction box and explosion-proof motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210640776U true CN210640776U (en) | 2020-05-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091421.4U Active CN210640776U (en) | 2019-07-12 | 2019-07-12 | Explosion-proof junction box and explosion-proof motor |
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| Country | Link |
|---|---|
| CN (1) | CN210640776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362073A (en) * | 2021-12-17 | 2022-04-15 | 中车永济电机有限公司 | Built-in junction box structure of mechanical large arm for roller of tunneling and anchoring machine |
-
2019
- 2019-07-12 CN CN201921091421.4U patent/CN210640776U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362073A (en) * | 2021-12-17 | 2022-04-15 | 中车永济电机有限公司 | Built-in junction box structure of mechanical large arm for roller of tunneling and anchoring machine |
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