CN108808958A - A kind of external cooling type totally-enclosed direct current motor - Google Patents
A kind of external cooling type totally-enclosed direct current motor Download PDFInfo
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- CN108808958A CN108808958A CN201810643927.5A CN201810643927A CN108808958A CN 108808958 A CN108808958 A CN 108808958A CN 201810643927 A CN201810643927 A CN 201810643927A CN 108808958 A CN108808958 A CN 108808958A
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- 238000001816 cooling Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 123
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 238000009434 installation Methods 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims 1
- 239000003651 drinking water Substances 0.000 abstract 1
- 235000020188 drinking water Nutrition 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
技术领域technical field
本发明涉及直流电机技术领域，具体为一种外冷却式全封闭直流电机。The invention relates to the technical field of direct current motors, in particular to an externally cooled fully enclosed direct current motor.
背景技术Background technique
直流电机是指能将直流电能转换成机械能（直流电动机）或将机械能转换成直流电能（直流发电机）的旋转电机，它是能实现直流电能和机械能互相转换的电机，当它作电动机运行时是直流电动机，将电能转换为机械能，作发电机运行时是直流发电机，将机械能转换为电能。A DC motor refers to a rotating electrical machine that can convert DC electrical energy into mechanical energy (DC motor) or convert mechanical energy into DC electrical energy (DC generator). It is a motor that can convert DC electrical energy and mechanical energy into each other. It is a DC motor, which converts electrical energy into mechanical energy. When it is used as a generator, it is a DC generator, which converts mechanical energy into electrical energy.
全封闭直流电机在长期使用时，需要对全封闭直流电机进行冷却，目前现有的全封闭直流电机，不具有外冷却的功能，使全封闭直流电机在使用时，由于长期使用，导致内部过热，容易造成全封闭直流电机出现烧坏，缩短了全封闭直流电机的使用寿命，从而降低了全封闭直流电机的实用性。When the fully enclosed DC motor is used for a long time, it needs to cool the fully enclosed DC motor. At present, the existing fully enclosed DC motor does not have the function of external cooling, so that when the fully enclosed DC motor is used, it will cause internal overheating due to long-term use. , It is easy to cause the fully enclosed DC motor to burn out, shorten the service life of the fully enclosed DC motor, thereby reducing the practicability of the fully enclosed DC motor.
发明内容Contents of the invention
（一）解决的技术问题(1) Solved technical problems
针对现有技术的不足，本发明提供了一种外冷却式全封闭直流电机，具备外冷却的优点，解决了现有的全封闭直流电机不具有外冷却功能的问题。Aiming at the deficiencies of the prior art, the present invention provides an externally-cooled fully enclosed DC motor, which has the advantage of external cooling and solves the problem that the existing fully enclosed DC motor does not have the external cooling function.
（二）技术方案(2) Technical solutions
为实现上述目的，本发明提供如下技术方案：一种外冷却式全封闭直流电机，包括箱体，所述箱体的右侧固定连接有安装圆盘，所述安装圆盘左侧的中心处固定连接有直流电机本体，所述直流电机本体的表面位于箱体的内腔，所述直流电机本体的右侧设置有输出轴，所述输出轴的右侧贯穿至安装圆盘的右侧，所述直流电机本体左侧的底部设置有电源线，所述电源线的左侧贯穿至箱体的外部，所述箱体底部的四角均固定连接有支架，所述支架的底部固定连接有安装板，所述安装板顶部的四角均开设有安装孔，所述箱体内壁左侧的顶部固定连接有温度传感器，所述箱体内壁的顶部开设有换水孔，所述箱体的顶部固定连接有水箱，所述水箱内壁背面的两侧均固定连接有制冷器，所述水箱的顶部连通有加水管，所述加水管的顶部螺纹连接有螺纹盖，所述水箱左侧的顶部连通有出水管，所述出水管远离水箱的一端连通有水泵，所述水泵的右侧与箱体左侧的顶部固定连接，所述水泵的底部连通有抽水管，所述抽水管远离水泵的一端与箱体底部的左侧连通，所述水箱的右侧固定连接有保护箱，所述保护箱内壁的左侧固定连接有处理器；In order to achieve the above object, the present invention provides the following technical solutions: an externally cooled fully enclosed DC motor, including a box body, the right side of the box body is fixedly connected with an installation disc, and the center of the left side of the installation disc is The DC motor body is fixedly connected, the surface of the DC motor body is located in the inner cavity of the box, the right side of the DC motor body is provided with an output shaft, and the right side of the output shaft penetrates to the right side of the installation disc. The bottom of the left side of the DC motor body is provided with a power cord, the left side of the power cord penetrates to the outside of the box, the four corners of the bottom of the box are fixedly connected with a bracket, and the bottom of the bracket is fixedly connected with a mounting The four corners of the top of the installation plate are provided with installation holes, the top of the left side of the inner wall of the box is fixedly connected with a temperature sensor, the top of the inner wall of the box is opened with a water exchange hole, and the top of the box is fixed A water tank is connected, both sides of the back of the inner wall of the water tank are fixedly connected with a refrigerator, the top of the water tank is connected with a water supply pipe, the top of the water supply pipe is threadedly connected with a threaded cover, and the top of the left side of the water tank is connected with a A water outlet pipe, the end of the water outlet pipe away from the water tank is connected to a water pump, the right side of the water pump is fixedly connected to the top of the left side of the tank, the bottom of the water pump is connected to a suction pipe, and the end of the water suction pipe away from the water pump is connected to the The left side of the bottom of the box is connected, the right side of the water tank is fixedly connected with a protection box, and the left side of the inner wall of the protection box is fixedly connected with a processor;
所述处理器的输入端与温度传感器的输出端单向电连接，所述处理器的输出端分别与水泵和制冷器的输入端单向电连接。The input end of the processor is unidirectionally electrically connected to the output end of the temperature sensor, and the output end of the processor is unidirectionally electrically connected to the input ends of the water pump and the refrigerator respectively.
优选的，所述电源线表面的右侧套接有第一密封圈，所述第一密封圈的右侧与直流电机本体左侧的底部连通，所述箱体内壁左侧的底部固定连接有第二密封圈，所述第二密封圈的内壁与电源线的表面固定连接。Preferably, a first sealing ring is sleeved on the right side of the surface of the power cord, the right side of the first sealing ring communicates with the bottom on the left side of the DC motor body, and the bottom on the left side of the inner wall of the box is fixedly connected with The second sealing ring, the inner wall of the second sealing ring is fixedly connected with the surface of the power cord.
优选的，所述保护箱的右侧开设有散热孔，所述散热孔的内壁固定连接有防尘网。Preferably, a cooling hole is opened on the right side of the protection box, and a dust-proof net is fixedly connected to the inner wall of the cooling hole.
优选的，所述支架的数量为四个，且四个支架分别固定在箱体底部的四角，所述安装孔的数量为四个，且四个安装孔分别开设在安装板顶部的四角。Preferably, the number of the brackets is four, and the four brackets are respectively fixed at the four corners of the bottom of the box, and the number of the installation holes is four, and the four installation holes are respectively opened at the four corners of the top of the installation plate.
（三）有益效果(3) Beneficial effects
与现有技术相比，本发明提供了一种外冷却式全封闭直流电机，具备以下有益效果：Compared with the prior art, the present invention provides an externally cooled fully enclosed DC motor, which has the following beneficial effects:
1、本发明通过设置箱体、温度传感器、换水孔、水箱、制冷器、加水管、螺纹盖、出水管、水泵、抽水管、保护箱、处理器、第一密封圈、第二密封圈、散热孔和防尘网相互配合，达到了外冷却的优点，解决了现有的全封闭直流电机不具有外冷却功能的问题，使全封闭直流电机在使用时，能够对全封闭直流电机进行外冷却，保证了全封闭直流电机不容易烧坏，延长了全封闭直流电机的使用寿命，从而提高了全封闭直流电机的实用性。1. The present invention is provided with a box body, a temperature sensor, a water exchange hole, a water tank, a refrigerator, a water supply pipe, a threaded cover, a water outlet pipe, a water pump, a water suction pipe, a protection box, a processor, a first sealing ring, and a second sealing ring , heat dissipation holes and dust-proof net cooperate with each other to achieve the advantages of external cooling, and solve the problem that the existing fully enclosed DC motor does not have external cooling function, so that the fully enclosed DC motor can be used for the fully enclosed DC motor. External cooling ensures that the fully enclosed DC motor is not easy to burn out, prolongs the service life of the fully enclosed DC motor, thereby improving the practicability of the fully enclosed DC motor.
2、本发明通过设置换水孔，使箱体和水箱能够交替换水的作用，通过设置制冷器，对水箱内部的水起到制冷的作用，使水更好的对直流电机本体进行冷却，通过设置加水管和螺纹盖，对水箱起到方便加水的作用，通过设置出水管、水泵和抽水管，起到对水循环利用的作用，通过设置第一密封圈，对直流电机本体起到密封的作用，解决了水通过直流电机本体和电源线之间的缝隙进入直流电机本体内，造成直流电机本体出现短路的问题，通过设置第二密封圈，对箱体起到密封的作用，解决了水通过箱体和电源线之间的缝隙流出，造成水资源浪费的问题，通过设置散热孔，对处理器起到散热的作用，解决了长期使用处理器，处理器无法散热，造成处理器出现烧坏的问题，通过设置防尘网，对散热孔起到防尘的作用，解决了灰尘通过散热孔进入保护箱内，造成处理器出现使用效果不好的问题。2. In the present invention, by setting the water exchange hole, the box body and the water tank can alternately replace the water, and by setting the refrigerator, the water inside the water tank can be refrigerated, so that the water can better cool the DC motor body. By setting the water filling pipe and the threaded cover, it is convenient to add water to the water tank; by setting the water outlet pipe, water pump and water suction pipe, it plays the role of water circulation; by setting the first sealing ring, the DC motor body is sealed. It solves the problem that water enters the DC motor body through the gap between the DC motor body and the power line, causing a short circuit in the DC motor body. By setting the second sealing ring, it plays a role in sealing the box and solves the problem of water leakage. It flows out through the gap between the box body and the power cord, causing the problem of waste of water resources. By setting the heat dissipation hole, the processor can dissipate heat, which solves the problem that the processor cannot dissipate heat when the processor is used for a long time, causing the processor to burn. For the bad problem, by setting the dust-proof net, it plays a dust-proof role for the heat dissipation holes, and solves the problem that dust enters the protection box through the heat dissipation holes, causing the processor to have poor use effects.
附图说明Description of drawings
图1为本发明结构示意图；Fig. 1 is a structural representation of the present invention;
图2为本发明左视结构示意图；Fig. 2 is a schematic view of the left view structure of the present invention;
图3为本发明系统原理图。Fig. 3 is a schematic diagram of the system of the present invention.
图中：1箱体、2安装圆盘、3直流电机本体、4输出轴、5电源线、6支架、7安装板、8安装孔、9温度传感器、10换水孔、11水箱、12制冷器、13加水管、14螺纹盖、15出水管、16水泵、17抽水管、18保护箱、19处理器、20第一密封圈、21第二密封圈、22散热孔、23防尘网。In the figure: 1 box body, 2 installation disc, 3 DC motor body, 4 output shaft, 5 power cord, 6 bracket, 7 installation plate, 8 installation hole, 9 temperature sensor, 10 water change hole, 11 water tank, 12 refrigeration Device, 13 water supply pipe, 14 screw cap, 15 water outlet pipe, 16 water pump, 17 suction pipe, 18 protection box, 19 processor, 20 first sealing ring, 21 second sealing ring, 22 cooling holes, 23 dustproof net.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
请参阅图1-3，一种外冷却式全封闭直流电机，包括箱体1，箱体1内壁左侧的底部固定连接有第二密封圈21，通过设置第二密封圈21，对箱体1起到密封的作用，解决了水通过箱体1和电源线5之间的缝隙流出，造成水资源浪费的问题，第二密封圈21的内壁与电源线5的表面固定连接，通过设置箱体1，起到注入冷却水的作用，箱体1的右侧固定连接有安装圆盘2，安装圆盘2左侧的中心处固定连接有直流电机本体3，直流电机本体3的表面位于箱体1的内腔，直流电机本体3的右侧设置有输出轴4，输出轴4的右侧贯穿至安装圆盘2的右侧，直流电机本体3左侧的底部设置有电源线5，电源线5表面的右侧套接有第一密封圈20，通过设置第一密封圈20，对直流电机本体3起到密封的作用，解决了水通过直流电机本体3和电源线5之间的缝隙进入直流电机本体3内，造成直流电机本体3出现短路的问题，第一密封圈20的右侧与直流电机本体3左侧的底部连通，电源线5的左侧贯穿至箱体1的外部，箱体1底部的四角均固定连接有支架6，支架6的数量为四个，且四个支架6分别固定在箱体1底部的四角，支架6的底部固定连接有安装板7，安装板7顶部的四角均开设有安装孔8，安装孔8的数量为四个，且四个安装孔8分别开设在安装板7顶部的四角，箱体1内壁左侧的顶部固定连接有温度传感器9，箱体1内壁的顶部开设有换水孔10，通过设置换水孔10，使箱体1和水箱11能够交替换水的作用，箱体1的顶部固定连接有水箱11，水箱11内壁背面的两侧均固定连接有制冷器12，通过设置制冷器12，对水箱11内部的水起到制冷的作用，使水更好的对直流电机本体3进行冷却，水箱11的顶部连通有加水管13，加水管13的顶部螺纹连接有螺纹盖14，通过设置加水管13和螺纹盖14，对水箱11起到方便加水的作用，水箱11左侧的顶部连通有出水管15，出水管15远离水箱11的一端连通有水泵16，水泵16的右侧与箱体1左侧的顶部固定连接，水泵16的底部连通有抽水管17，通过设置出水管15、水泵16和抽水管17，起到对水循环利用的作用，抽水管17远离水泵16的一端与箱体1底部的左侧连通，水箱11的右侧固定连接有保护箱18，保护箱18的右侧开设有散热孔22，通过设置散热孔22，对处理器19起到散热的作用，解决了长期使用处理器19，处理器19无法散热，造成处理器19出现烧坏的问题，散热孔22的内壁固定连接有防尘网23，通过设置防尘网23，对散热孔22起到防尘的作用，解决了灰尘通过散热孔22进入保护箱18内，造成处理器19出现使用效果不好的问题，保护箱18内壁的左侧固定连接有处理器19；Please refer to Figure 1-3, an externally cooled fully enclosed DC motor, including a box body 1, the bottom of the left side of the inner wall of the box body 1 is fixedly connected with a second sealing ring 21, by setting the second sealing ring 21, the box body 1 plays the role of sealing, and solves the problem of water flowing out through the gap between the box body 1 and the power line 5, causing waste of water resources. The inner wall of the second sealing ring 21 is fixedly connected with the surface of the power line 5, and the box The body 1 plays the role of injecting cooling water. The right side of the box body 1 is fixedly connected with the installation disc 2, and the center of the left side of the installation disc 2 is fixedly connected with the DC motor body 3. The surface of the DC motor body 3 is located in the box The inner cavity of the body 1, the right side of the DC motor body 3 is provided with an output shaft 4, the right side of the output shaft 4 penetrates to the right side of the installation disc 2, and the bottom of the left side of the DC motor body 3 is provided with a power cord 5, the power supply The right side of the surface of the wire 5 is sleeved with a first sealing ring 20. By setting the first sealing ring 20, the DC motor body 3 is sealed, and the gap between the water passing through the DC motor body 3 and the power line 5 is solved. Into the DC motor body 3, causing a short circuit problem in the DC motor body 3, the right side of the first sealing ring 20 communicates with the bottom of the left side of the DC motor body 3, and the left side of the power line 5 penetrates to the outside of the box body 1. The four corners of the bottom of the box body 1 are fixedly connected with brackets 6, the number of brackets 6 is four, and the four brackets 6 are respectively fixed at the four corners of the bottom of the box body 1, the bottom of the bracket 6 is fixedly connected with a mounting plate 7, and the mounting plate 7 The four corners of the top are provided with mounting holes 8, the number of the mounting holes 8 is four, and the four mounting holes 8 are respectively provided at the four corners of the top of the mounting plate 7, and the top of the left side of the inner wall of the box body 1 is fixedly connected with a temperature sensor 9, The top of the inner wall of the box body 1 is provided with a water exchange hole 10. By setting the water exchange hole 10, the box body 1 and the water tank 11 can exchange water. The top of the box body 1 is fixedly connected with the water tank 11. Both sides are fixedly connected with a refrigerator 12, by setting the refrigerator 12, the water inside the water tank 11 can be cooled, so that the water can better cool the DC motor body 3, and the top of the water tank 11 is connected with a water supply pipe 13 , the top of the water supply pipe 13 is threadedly connected with a threaded cover 14, by setting the water supply pipe 13 and the threaded cover 14, the effect of adding water to the water tank 11 is played, the top of the left side of the water tank 11 is connected with a water outlet pipe 15, and the water outlet pipe 15 is far away from the water tank One end of 11 is communicated with water pump 16, and the right side of water pump 16 is fixedly connected with the top of casing 1 left side, and the bottom of water pump 16 is communicated with water pump 17, by setting water outlet pipe 15, water pump 16 and water suction pipe 17, play a role in The effect of water recycling, the end of the suction pipe 17 away from the water pump 16 communicates with the left side of the bottom of the box body 1, the right side of the water tank 11 is fixedly connected with the protection box 18, and the right side of the protection box 18 is provided with a heat dissipation hole 22, by setting the heat dissipation Holes 22 play a role in dissipating heat for the processor 19, which solves the problem that the processor 19 cannot dissipate heat after long-term use, causing the processor 19 to burn out. The inner wall of the cooling hole 22 is fixedly connected with a dust-proof net 23, Dustproof by setting The net 23 plays a dust-proof effect on the heat dissipation holes 22, and solves the problem that dust enters the protection box 18 through the heat dissipation holes 22, causing the processor 19 to appear ineffective. The left side of the protection box 18 inner wall is fixedly connected with a handle device 19;
处理器19的输入端与温度传感器9的输出端单向电连接，处理器19的输出端分别与水泵16和制冷器12的输入端单向电连接，通过设置箱体1、温度传感器9、换水孔10、水箱11、制冷器12、加水管13、螺纹盖14、出水管15、水泵16、抽水管17、保护箱18、处理器19、第一密封圈20、第二密封圈21、散热孔22和防尘网23相互配合，达到了外冷却的优点，解决了现有的全封闭直流电机不具有外冷却功能的问题，使全封闭直流电机在使用时，能够对全封闭直流电机进行外冷却，保证了全封闭直流电机不容易烧坏，延长了全封闭直流电机的使用寿命，从而提高了全封闭直流电机的实用性。The input end of the processor 19 is electrically connected to the output end of the temperature sensor 9 in one direction, and the output end of the processor 19 is electrically connected in one direction to the input end of the water pump 16 and the refrigerator 12 respectively. By setting the casing 1, the temperature sensor 9, Water exchange hole 10, water tank 11, refrigerator 12, water supply pipe 13, screw cap 14, water outlet pipe 15, water pump 16, water suction pipe 17, protection box 18, processor 19, first sealing ring 20, second sealing ring 21 , the cooling holes 22 and the dust-proof net 23 cooperate with each other to achieve the advantages of external cooling, solve the problem that the existing fully enclosed DC motor does not have an external cooling function, and make the fully enclosed DC motor in use. The external cooling of the motor ensures that the fully enclosed DC motor is not easy to burn out, prolongs the service life of the fully enclosed DC motor, and thus improves the practicability of the fully enclosed DC motor.
使用时，使用者首先拧开螺纹盖14，然后通过加水管13对水箱11和箱体1内进行加水，然后关闭螺纹盖14，然后通过电源线5打开直流电机本体3，使直流电机本体3正常使用，当直流电机本体3过热时，箱体1内部的水对直流电机本体3进行冷却，热量被水吸收后，水温变热，温度传感器9感应到温度过高时，向处理器19发送指令，处理器19处理后说先启动制冷器12开始对水箱11内部的水进行制冷，然后启动水泵16，水泵16启动通过抽水管17开始对箱体1内部的热水进行抽动，然后通过出水管15抽入水箱11内，水箱11内部制冷后的水通过吸力和换水孔10进入箱体1内，开始对直流电机本体3进行冷却，如此反复使用，从而达到了外冷却的优点。When in use, the user first unscrews the threaded cover 14, then adds water to the water tank 11 and the box body 1 through the water supply pipe 13, then closes the threaded cover 14, and then opens the DC motor body 3 through the power cord 5 to make the DC motor body 3 In normal use, when the DC motor body 3 is overheated, the water inside the box body 1 cools the DC motor body 3. After the heat is absorbed by the water, the water temperature becomes hot. When the temperature sensor 9 senses that the temperature is too high, it sends a signal to the processor 19. Instruction, after the processor 19 processes it, it says to start the refrigerator 12 to start cooling the water inside the water tank 11, then start the water pump 16, and the water pump 16 starts to pump the hot water inside the tank 1 through the suction pipe 17, and then through the outlet The water pipe 15 is pumped into the water tank 11, and the cooled water in the water tank 11 enters the box body 1 through the suction force and the water exchange hole 10, and starts to cool the DC motor body 3, so that it is used repeatedly, thus achieving the advantage of external cooling.
综上所述，该外冷却式全封闭直流电机，通过箱体1、温度传感器9、换水孔10、水箱11、制冷器12、加水管13、螺纹盖14、出水管15、水泵16、抽水管17、保护箱18、处理器19、第一密封圈20、第二密封圈21、散热孔22和防尘网23相互配合，解决了现有的全封闭直流电机不具有外冷却功能的问题。In summary, the externally cooled fully enclosed DC motor passes through the box body 1, the temperature sensor 9, the water exchange hole 10, the water tank 11, the refrigerator 12, the water supply pipe 13, the threaded cover 14, the water outlet pipe 15, the water pump 16, The suction pipe 17, the protection box 18, the processor 19, the first sealing ring 20, the second sealing ring 21, the cooling holes 22 and the dust-proof net 23 cooperate with each other to solve the problem that the existing fully enclosed DC motor does not have an external cooling function. question.
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.
Claims (4)
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