CN219980567U - Auxiliary device for motor junction box and junction box - Google Patents
Auxiliary device for motor junction box and junction box Download PDFInfo
- Publication number
- CN219980567U CN219980567U CN202223581477.2U CN202223581477U CN219980567U CN 219980567 U CN219980567 U CN 219980567U CN 202223581477 U CN202223581477 U CN 202223581477U CN 219980567 U CN219980567 U CN 219980567U
- Authority
- CN
- China
- Prior art keywords
- junction box
- shell
- auxiliary device
- heat dissipation
- round hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims description 19
- 230000005855 radiation Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 description 10
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
Abstract
The utility model discloses an auxiliary device for a motor junction box and the junction box, which comprises a mounting plate, a connecting pipe and a connecting pipe, wherein the mounting plate is fixed with the junction box; the shell is fixedly arranged on the front surface of the mounting plate, a heat dissipation cavity is formed between the shell and the mounting plate, the heat dissipation cavity is communicated with the inside of the junction box through a communicating pipe, a heat dissipation fan is arranged at the bottom of the shell, and heat dissipation grids are arranged on two sides of the shell. On the basis of the original junction box, a round hole is formed in the center of the front face of the junction box, and then an auxiliary device is arranged on the front face of the original junction box, so that the junction box has the functions of temperature measurement, observation and heat dissipation.
Description
Technical Field
The utility model relates to the technical field of junction boxes, in particular to an auxiliary device for a motor junction box and the junction box.
Background
At present, the high-voltage motor adopts four voltages of 1KV, 3KV, 6KV and 10KV, and because the voltage level is higher, the safety distance is required to be small, and a closed junction box is mostly adopted, but the design of the safety is greatly influenced by the regular temperature measurement, regular observation and inspection of the high-voltage motor lead connection and the heat dissipation of abnormal high temperature.
In recent years, various large-scale enterprises and factories and mines have a plurality of grounding or short-circuit faults in the junction boxes of the high-voltage motors, and the accidents of non-stop of the power plant units are caused when the faults are serious. The occurrence of the fault is caused by the fact that personnel do not check and measure the temperature in time on the surface, and the design of the junction box of the high-voltage motor is unreasonable, so that the junction box is necessary to be optimized and improved.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the utility model and in the title of the utility model, which may not be used to limit the scope of the utility model.
In order to solve the technical problems, the utility model provides the following technical scheme: the auxiliary device for the motor junction box comprises a mounting plate, a connecting pipe and a connecting pipe, wherein the mounting plate is fixed with the junction box; the shell is fixedly arranged on the front surface of the mounting plate, a heat dissipation cavity is formed between the front surface of the mounting plate and the mounting plate, the heat dissipation cavity is communicated with the inside of the junction box through a communicating pipe, a heat dissipation fan is arranged at the bottom of the shell, and heat dissipation grids are arranged on two sides of the shell.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the corner of the mounting plate is provided with a fixed magnetic block, and the outer edge of the mounting plate is provided with a circle of rubber sealing layer.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the mounting holes are formed in the bottom of the shell, two groups of mounting holes are formed in the mounting holes, and the cooling fans are arranged in the mounting holes.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the thickness of the side wall of the upper half part of the shell body is gradually increased from top to bottom, and an inclined heat dissipation grid is arranged at the inclined side wall.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the side wall of the lower half part of the shell is horizontal, and horizontal radiating grids are arranged at equal intervals on the horizontal side wall.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: an observation round hole is formed in the center of the front face of the shell, and a movable door plate is arranged at the observation round hole.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the middle part of the observation round hole is provided with a magnetic cross rod, the movable door plate comprises an upper door plate and a lower door plate, the upper door plate and the lower door plate are closed by being attracted with the magnetic cross rod, the upper door plate is arranged on the upper half part of the observation round hole through a first connecting spring, and the lower door plate is arranged on the lower half part of the observation round hole through a second connecting spring.
As a preferable mode of the auxiliary device for a motor junction box of the present utility model, wherein: the installation hole, the inclined heat dissipation grid and the horizontal heat dissipation grid are all provided with dust screens, sliding grooves are formed in two sides of the installation plate, and cleaning strips are arranged in the sliding grooves in a sliding mode.
The utility model also provides a junction box, which comprises an auxiliary device for the motor junction box and a junction box main body, wherein the center of the front surface of the junction box main body is provided with a round hole, the size of the round hole is matched with that of the communicating pipe, and the periphery of the round hole is provided with adsorption magnetic blocks matched with the fixed magnetic blocks for use.
As a preferable mode of the auxiliary device for a motor junction box and the junction box of the present utility model, wherein: and a temperature sensor is also arranged in the shell.
The utility model has the beneficial effects that: on the basis of original terminal box, open a round hole at its terminal box front center, install auxiliary device in original terminal box front again, can possess temperature measurement simultaneously, observe and heat dissipation function, through artifical periodic observation and temperature measurement work, in time discover the hidden danger that exists to take reliable measure to eliminate hidden danger in the bud state, avoid insulating and wearing to lead to ground connection or short circuit trouble because of overheated emergence in the motor terminal box, guarantee unit safe operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a schematic diagram of the overall structure of the auxiliary device.
Fig. 2 is a schematic diagram of an explosion structure of the auxiliary device.
Fig. 3 is a schematic view of the internal structure of the auxiliary device.
Fig. 4 is a schematic view of the installation structure of the movable door panel according to the present utility model.
Fig. 5 is a schematic diagram of the overall structure of the junction box.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 2, in a first embodiment of the present utility model, there is provided an auxiliary device for a junction box of an electric motor, which includes a mounting plate 100 and a housing 200, the mounting plate 100 being fixed to the junction box, a communication pipe 101 being inserted into the junction box being provided at the rear surface of the mounting plate 100; the casing 200 is fixedly arranged on the front surface of the mounting plate 100, a heat dissipation cavity 201 is formed between the casing 200 and the mounting plate 100, the heat dissipation cavity 201 is communicated with the inside of the junction box through the communicating pipe 101, a heat dissipation fan 202 is arranged at the bottom of the casing 200, and heat dissipation grids 203 are arranged on two sides of the casing 200.
The original high-voltage motor junction box adopts a closed structure, which is unfavorable for heat dissipation and can not observe or check cable joints and leads, therefore, on the basis of the original junction box, a round hole is formed in the center of the front surface of the junction box, the size of the hole is used for observing and measuring three-phase joints in the junction box, the hole is not required to be too large, the supporting strength of the junction box is possibly influenced by the too large hole, the observation, the measurement temperature and the heat dissipation are possibly influenced by the too small hole, the size of the hole is moderate, then the communicating pipe 101 of the device is inserted into the round hole formed in the junction box, the mounting plate 100 is fixed with the junction box, the heat dissipation cavity 201 and the inside of the junction box are communicated, so that the heat in the junction box is conveniently discharged through the heat dissipation cavity 201, the heat in the junction box is diffused into the heat dissipation cavity 201 through the communicating pipe 101, the bottom of the shell 200 is provided with the heat dissipation fan 202, the heat dissipation fan 202 is started, the high-temperature gas in the junction box 201 is discharged from the heat dissipation grids 203 at two sides of the shell 200, the heat is prevented from accumulating in the inside the closed junction box, the junction box is prevented from insulating and the ground or short-circuit caused by overheat in the motor junction box is prevented, and the ground or faults are ensured.
Example 2
Referring to fig. 1 to 4, a second embodiment of the present utility model is different from the first embodiment in that: the corner of the mounting plate 100 is provided with a fixed magnetic block 102, and the outer edge of the mounting plate 100 is provided with a circle of rubber sealing layer 103. The fixed magnet 102 is used for adsorbing and fixing the whole auxiliary device outside the high-voltage motor junction box, and the rubber sealing layer 103 is used for guaranteeing the sealing state of the mounting plate 100 and the high-voltage motor junction box in a fixed state and preventing dust from entering from a gap between the mounting plate and the high-voltage motor junction box. The magnetic fixing type mounting mode is adopted, so that the magnetic fixing type mounting device is convenient and efficient, and is convenient to fix and detach.
Further, the bottom of the housing 200 is provided with mounting holes 204, the mounting holes 204 are provided with two groups, the bottom of the mounting holes 204 is provided with a dust screen, and the cooling fan 202 is arranged in the mounting holes 204. The cooling fan 202 is used for accelerating the gas circulation rate in the cooling cavity 201, so that the rapid heat exchange and cooling of the closed high-voltage motor junction box are realized, and the dust screen arranged at the bottom of the mounting hole 204 prevents dust from entering the cooling cavity 201 and the junction box along with air, thereby influencing the normal use of the junction box.
The thickness of the side wall of the upper half part of the shell 200 gradually increases from top to bottom, the inclined side wall is provided with an inclined heat radiation grid 203a, and the opening of the inclined heat radiation grid 203a on the inner side of the shell 200 is higher than the opening of the inclined heat radiation grid on the outer side of the shell 200. The lower half side wall of the housing 200 is horizontal, and horizontal heat dissipation grids 203b are equally spaced at the horizontal side wall.
When the cooling fan 202 is turned on to cool, the cooling fan 202 brings low temperature gas outside the cooling cavity 201 into the cooling cavity 201 through the mounting hole 204, the low temperature gas flows upward to push the high temperature gas to flow toward the top, the high temperature gas gradually flows and gathers toward the top due to the gradual increase of the thickness of the upper half side wall of the housing 200 from top to bottom, and diffuses toward two sides after contacting the top wall, the high temperature gas flows out of the housing 200 from the inclined cooling grid 203a which is obliquely arranged, the opening of the inclined cooling grid 203a at the inner side of the housing 200 is higher than the opening of the inclined cooling grid 203a at the outer side of the housing 200 for the high temperature gas to contact the top wall, and meanwhile the low temperature gas can smoothly flow out of the cooling cavity 201 from the inclined cooling grid 203a at the upper half, and the horizontal cooling grid 203b which is arranged at the lower half can accelerate the inflow of external air under the action of the gas flow in the cooling cavity 201, so as to increase the heat exchange efficiency in the cooling cavity 201.
Further, an observation round hole 205 is formed in the center of the front face of the housing 200, and a movable door plate 206 is arranged at the observation round hole 205. The observation round hole 205 is opposite to the communication pipe 101, so that the condition inside the junction box of the high-voltage motor can be directly observed through the observation round hole 205, hidden dangers are timely found through manual regular observation, the movable door plate 206 is used for sealing the observation round hole 205, and when the condition inside the junction box needs to be observed, the movable door plate 206 is opened.
The middle part of the observation round hole 205 is provided with a magnetic cross rod 207, the movable door plate 206 comprises an upper door plate 206a and a lower door plate 206b, the upper door plate 206a and the lower door plate 206b are attracted with the magnetic cross rod 207 to seal the observation round hole 205, the upper door plate 206a is arranged on the upper half part of the observation round hole 205 through a first connecting spring 203c, and the lower door plate 206b is arranged on the lower half part of the observation round hole 205 through a second connecting spring 203 d.
Under the normal state, the upper door plate 206a is in abutting attraction with the magnetic cross rod 207 under the pressure of the first connecting spring 203c, the lower door plate 206b is also in abutting attraction with the magnetic cross rod 207 under the supporting action of the second connecting spring 203d, so that the observation round hole 205 is closed, the upper door plate 206a and the lower door plate 206b are provided with moving handles, when the observation round hole 205 needs to be opened, the upper door plate 206a and the lower door plate 206b are moved upwards by the moving handles, the upper door plate 206a and the lower door plate 206b respectively enter an interlayer arranged in the shell 200, the interlayer is communicated with the observation round hole 205, and the first connecting spring 203c and the second connecting spring 203d are respectively stressed and compressed, so that the observation round hole 205 is opened; after the observation is completed, the movable handle is released, and the upper door plate 206a and the lower door plate 206b are automatically closed by the first connecting spring 203c and the second connecting spring 203d, thereby re-closing the observation circular hole 205.
Further, the outside of the inclined heat dissipation grating 203a and the horizontal heat dissipation grating 203b are both provided with dust screens, the dust screens prevent dust from entering the heat dissipation cavity 201 and the junction box along with air, normal use of the junction box is affected, the sliding grooves 104 are formed in two sides of the mounting plate 100, the cleaning strips 105 are arranged in the sliding grooves 104 in a sliding manner, and the cleaning strips 105 are used for cleaning the dust screens of the heat dissipation grating 203, so that dust accumulation is prevented from affecting normal heat dissipation of the heat dissipation cavity 201.
Example 2
Referring to fig. 1 to 5, in a third embodiment of the present utility model, a junction box is provided, which includes an auxiliary device for a junction box and a junction box main body 300, a round hole 301 is formed in the center of the front surface of the junction box, the size of the round hole 301 is adapted to that of a communication pipe 101, and adsorption magnetic blocks 302 matched with the fixed magnetic blocks 102 are disposed around the round hole 301. On the basis of the original junction box, a round hole 301 is formed in the center of the front face of the junction box, then the communicating pipe 101 of the device is inserted into the round hole 301 formed in the junction box, the mounting plate 100 is fixed with the junction box, and the fixing magnetic block 102 and the adsorption magnetic block 302 are matched to realize quick fixing and mounting of the junction box main body 300 and the auxiliary device. The inside of the shell 200 is also provided with a temperature sensor 208, and the temperature sensor 208 adopts an SIN-P202 integrated temperature transmitter, so that the real-time monitoring of the temperature in the heat dissipation cavity 201 can be realized.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. An auxiliary device for a motor junction box, characterized in that: comprising the steps of (a) a step of,
the mounting plate (100) is fixed with the junction box, and a communicating pipe (101) inserted into the junction box is arranged on the back surface of the mounting plate (100);
the shell (200) is fixedly arranged on the front surface of the mounting plate (100), a heat dissipation cavity (201) is formed between the heat dissipation cavity and the mounting plate (100), the heat dissipation cavity (201) is communicated with the inside of the junction box through a communicating pipe (101), a heat dissipation fan (202) is arranged at the bottom of the shell (200), and heat dissipation grids (203) are arranged on two sides of the shell (200).
2. The auxiliary device for a motor junction box according to claim 1, wherein: fixed magnetic blocks (102) are arranged at corners of the mounting plate (100), and a circle of rubber sealing layer (103) is arranged at the outer edge of the mounting plate (100).
3. The auxiliary device for a motor junction box according to claim 2, wherein: the bottom of the shell (200) is provided with mounting holes (204), the mounting holes (204) are provided with two groups, and the cooling fan (202) is arranged in the mounting holes (204).
4. An auxiliary device for a motor junction box according to claim 2 or 3, wherein: the thickness of the side wall of the upper half part of the shell (200) is gradually increased from top to bottom, an inclined heat radiation grid (203 a) is arranged at the inclined side wall, and an opening of the inclined heat radiation grid (203 a) at the inner side of the shell (200) is higher than an opening of the inclined heat radiation grid at the outer side of the shell (200).
5. The auxiliary device for a motor junction box according to claim 4, wherein: the side wall of the lower half part of the shell (200) is horizontal, and horizontal radiating grids (203 b) are arranged at equal intervals on the horizontal side wall.
6. The auxiliary device for a motor junction box according to claim 5, wherein: an observation round hole (205) is formed in the center of the front face of the shell (200), and a movable door plate (206) is arranged at the observation round hole (205).
7. The auxiliary device for a motor junction box according to claim 6, wherein: the middle part of the observation round hole (205) is provided with a magnetic cross rod (207), the movable door plate (206) comprises an upper door plate (206 a) and a lower door plate (206 b), the upper door plate (206 a) and the lower door plate (206 b) are attracted with the magnetic cross rod (207) to seal the observation round hole (205), the upper door plate (206 a) is arranged on the upper half part of the observation round hole (205) through a first connecting spring (203 c), and the lower door plate (206 b) is arranged on the lower half part of the observation round hole (205) through a second connecting spring (203 d).
8. An auxiliary device for a motor junction box according to claim 3, wherein: the dust-proof structure is characterized in that dust-proof nets are arranged outside the mounting holes (204), the inclined heat dissipation grids (203 a) and the horizontal heat dissipation grids (203 b), sliding grooves (104) are formed in two sides of the mounting plate (100), and cleaning strips (105) are arranged in the sliding grooves (104) in a sliding mode.
9. A junction box, characterized in that: an auxiliary device for a motor junction box as claimed in claim 2, and;
the junction box comprises a junction box main body (300), wherein a round hole (301) is formed in the center of the front face of the junction box main body, the size of the round hole (301) is matched with that of a communicating pipe (101), and adsorption magnetic blocks (302) matched with the fixed magnetic blocks (102) are arranged around the round hole (301).
10. The junction box of claim 9 wherein: a temperature sensor (208) is also arranged inside the shell (200).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223581477.2U CN219980567U (en) | 2022-12-30 | 2022-12-30 | Auxiliary device for motor junction box and junction box |
| DE202023106019.6U DE202023106019U1 (en) | 2022-12-30 | 2023-10-18 | Auxiliary device for motor junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223581477.2U CN219980567U (en) | 2022-12-30 | 2022-12-30 | Auxiliary device for motor junction box and junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219980567U true CN219980567U (en) | 2023-11-07 |
Family
ID=88578479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223581477.2U Active CN219980567U (en) | 2022-12-30 | 2022-12-30 | Auxiliary device for motor junction box and junction box |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN219980567U (en) |
| DE (1) | DE202023106019U1 (en) |
-
2022
- 2022-12-30 CN CN202223581477.2U patent/CN219980567U/en active Active
-
2023
- 2023-10-18 DE DE202023106019.6U patent/DE202023106019U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202023106019U1 (en) | 2024-01-25 |
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