CN103560621B - The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element - Google Patents
The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element Download PDFInfo
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- CN103560621B CN103560621B CN201310601723.2A CN201310601723A CN103560621B CN 103560621 B CN103560621 B CN 103560621B CN 201310601723 A CN201310601723 A CN 201310601723A CN 103560621 B CN103560621 B CN 103560621B
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- sensing element
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- refrigeration motor
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Abstract
The invention provides a kind of assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element, comprise: in order to be socketed in the black box outside many temperature-sensing element lead-out wires, described black box has the conical section that the through hole that axially runs through along self and periphery have taper seat, described conical section has front end face and rear end face vertically successively, the diameter of described rear end face is greater than the diameter of described front end face, and described many temperature-sensing elements are through described through hole; Keep out the fixture of end face in the rear; Fore-and-aft direction vertically executes stressed locking member to described taper seat; Be set in the installation sleeve outside described fixture and described locking member, described installation sleeve passes the housing of refrigeration motor and is fixedly connected with described housing.Structure of the present invention is simple, good sealing effect, easy to assembly, can as required, the quantity of adaptive temperature sensing element lead-out wire by the adjustment through-hole aperture of black box.
Description
Technical field
The present invention relates to a kind of black box of refrigeration motor, especially a kind of assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element.
Background technology
Motor for closed type refrigeration compressor is completely different with working media from the operational environment of common standard motor.The working media of common standard motor is air, and machine operation is not with when working, and the inside and outside portion pressure of motor is all equal.Owing to being filled with different refrigeration working mediums, when working and not working, all there is higher pressure in motor for closed type refrigeration compressor always.Therefore, in enclosed refrigeration motor, for the communication tie being in seal inside installation temperature-sensing element in the motor, excellent sealing measure must be adopted equally, just can reach the requirement preventing refrigrant leakage.
The observing and controlling element of temperature ensures refrigeration motor reliably working very important sensing element.Owing to all having different voltage or electric current to pass through when they work, the conductor of drawing control assembly, when through compressor body, must enable signal pass through smoothly, therefore require while having superior isolation, more will ensure reliable sealing.
In prior art, for the design of Sealing Structure of the temperature-sensing element lead-out wire of enclosed refrigeration motor for seal respectively each root lead-out wire, therefore complex structure, bulky, installation and maintenance extremely bothers, can not be installed in small-sized refrigerating motor, there is larger application limitation.
Summary of the invention
In order to overcome the defect of prior art, the object of this invention is to provide a kind of for being arranged on to the hermetic terminal assembly that the lead-out wire of temperature-sensing element seals in enclosed refrigeration motor, sealing terminal assemblies structure be simple, sealing effectiveness better and can seal many temperature-sensing element lead-out wires simultaneously.
For achieving the above object, the invention provides a kind of assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element, it is characterized in that, comprising:
In order to be socketed in the black box outside many temperature-sensing element lead-out wires, described black box has the conical section that the through hole that axially runs through along self and periphery have taper seat, described conical section has front end face and rear end face vertically successively, the diameter of described rear end face is greater than the diameter of described front end face, and described many temperature-sensing elements are through described through hole;
Keep out the fixture of end face in the rear;
Fore-and-aft direction vertically executes stressed locking member to described taper seat;
Be set in the installation sleeve outside described fixture and described locking member, described installation sleeve passes the housing of refrigeration motor and is fixedly connected with described housing.
Preferably, described installation sleeve has the external screw thread be threaded with described housing and the internal thread be threaded with described fixture and described locking member.
More preferably, described fixture is hold-down nut, and it has the external screw thread be connected with the internal thread of described installation sleeve.
Further, described locking member is locking nut, it has to rotate with the taper seat of described the black box conical bore coordinated and the external screw thread be connected with the internal thread of described installation sleeve, and described locking member is socketed on the taper seat of described black box rotationally; The maximum inner diameter of described conical bore is less than the diameter of the rear end face of described taper seat.
Further, the axis of described installation sleeve runs through isometrical through hole, and the inwall of described isometrical through hole is provided with internal thread, and described fixture and described locking member are threaded in the front and rear of described isometrical through hole respectively.
In one embodiment, described black box comprises:
Be enclosed within the outer assembly of sealing outside described many temperature-sensing element lead-out wires and sealing inner assembly vertically successively;
Be set in the lock sleeve outside the outer assembly of described sealing and described sealing inner assembly, the outer circumference surface of described lock sleeve forms described taper seat.
Wherein, the inwall of described lock sleeve is provided with internal thread, and the outer assembly of described sealing and described sealing inner assembly are threaded on the internal thread of described lock sleeve respectively.
Wherein, described sealing inner assembly is provided with axial raised boss towards one end of the outer assembly of described sealing, and the outer assembly of described sealing is provided with the groove of axial recess towards one end of described sealing inner assembly.
Preferably, described boss is the frustum of a cone, and the shape of described groove is the taper barrel compressed that matches with the described frustum of a cone, and the maximum gauge of described groove is less than the maximum gauge of the described frustum of a cone.
In one embodiment, described outer circumference surface is also arranged with plastic sheath.Plastic sheath can bear certain distortion, and therefore after locking member locking, sealing effectiveness is better.
Compared to prior art, hermetic terminal assembly of the present invention has the following advantages: for sealing the lead-out wire of drawing enclosed refrigeration motor temperature sensing element, its structure is simple, can be arranged in small-sized refrigerating motor, can as required, the quantity of adaptive temperature sensing element lead-out wire by the adjustment through-hole aperture of black box; By applying axial compressive force locking to the taper seat of black box, guarantee good seal; Primary structure is all threaded connection, and assembles very convenient.
Accompanying drawing explanation
Fig. 1 is assembling schematic diagram of the present invention.
Fig. 2 is the structural representation of black box in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Refer to Fig. 1 and Fig. 2, the invention provides a kind of assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element, comprise black box 1, hold-down nut 2, locking nut 3, installation sleeve 4; Black box 1 comprises the outer assembly 11 of sealing, sealing inner assembly 12, lock sleeve 13, plastic sheath 14.
Refer to Fig. 1, black box 1 is for being socketed in outside many temperature-sensing element lead-out wires 100, black box 1 has the conical section that the through hole that axially runs through along self and periphery have taper seat 101, described conical section has front end face 102 and rear end face 103 vertically successively, the diameter of rear end face 103 is greater than the diameter of front end face 102, and many temperature-sensing elements 100 are through described through hole.
The rear end face 103 in the conical section of black box 1 kept out by hold-down nut 2, and it has external screw thread.
The taper seat 101 of locking nut 3 fore-and-aft direction vertically to black box applies pressure, and it has external screw thread, and has to rotate with the taper seat of black box 1 conical bore coordinated and the external screw thread be connected with the internal thread of installation sleeve 4.Locking nut 3 is socketed on the taper seat 101 of black box 1 rotationally, and the maximum inner diameter of the conical bore of locking nut 3 is less than the diameter of the rear end face 103 of described taper seat.
In order to accurate positioning, hold-down nut 2 is also provided with detent 21 towards one end of black box 1, and black box 1 is provided with corresponding positioning convex portion towards one end of hold-down nut 2.
The axis of installation sleeve 4 runs through isometrical through hole, and the inwall of described isometrical through hole is provided with internal thread.Installation sleeve 4 is set in outside hold-down nut 2 and locking nut 3, and described hold-down nut 2 and locking nut 3 are threaded in the front and rear of described isometrical through hole respectively.Installation sleeve 4 passes the housing 5 of refrigeration motor and is fixedly connected with housing 5.Installation sleeve 4 has the external screw thread be threaded with housing 5 and the internal thread be threaded with hold-down nut 2 and locking nut 3.
In the present embodiment, seal outer assembly 11 and be enclosed within successively vertically outside many temperature-sensing element lead-out wires 100 with sealing inner assembly 12.
Lock sleeve 13 is set in outside the outer assembly 11 of sealing and described sealing inner assembly 12, and the periphery of lock sleeve 13 forms above-mentioned taper seat 101.The inwall of lock sleeve 13 is provided with internal thread, seals outer assembly 11 and seal inner assembly 12 to be threaded in respectively on the internal thread of lock sleeve 13.
Wherein, sealing inner assembly 12 is provided with axial raised boss towards one end of the outer assembly 11 of described sealing, and in the present embodiment, this boss is the frustum of a cone 121.Seal outer assembly 11 is provided with axial recess groove 111 towards the one end sealing inner assembly 12, in the present embodiment, the shape of this groove 111 is the taper barrel compressed that matches with the frustum of a cone 121, and the maximum gauge of described groove 111 is less than the maximum gauge of the frustum of a cone 121.
Plastic sheath 14 is set on the outer circumference surface of lock sleeve 13, and plastic sheath 14 can bear certain distortion, therefore locking nut 3 lock after the inwall of its conical bore plastic sheath 14 is pressed on taper seat 101, sealing effectiveness is better.
Assembling process of the present invention is as follows:
The first step: the assembling of " black box "
(1) by many temperature-sensing element lead-out wires 100, be each passed through in the circular hole of the outer assembly 11 of sealing and sealing inner assembly 12;
(2) part being positioned at the circular hole of sealing inner assembly 12 at temperature-sensing element lead-out wire 100 coats appropriate fluid sealant;
(3) first sealing inner assembly 12 is screwed in about 1/2 axial length position to lock sleeve 13 endoporus, then the outer assembly 11 of sealing other one end from lock sleeve 13 is screwed in, and till being threaded to suitable pressure;
(4) plastic sheath 14 on the outer cover of lock sleeve 2;
Black box 1 has assembled.
Second step: assembling " hermetic terminal assembly "
(1) installation sleeve 4 is screwed in compressor housing 5;
(2) then hold-down nut 2 is screwed in axial length about 1/2 place of mounting nuts 4 endoporus;
(3) lead-out wire of black box 1 is passed from the hole of hold-down nut 5;
(4) locking nut 3 is screwed in installation sleeve 5, with locking nut 3, black box 1 is pressed in hold-down nut 2, then at leisure black box 1 is compressed.
Installation.
In assembling process, gap axis between in order to avoid refrigeration working medium from the conductor and insulating barrier of every root lead-out wire is to leakage, in the through hole of sealing inner assembly 12, the insulating barrier of every root temperature-sensing element lead-out wire 100 is circumferentially peeled off to expose conductor, after stripping, exposes a bit of conductor; And in order to avoid short circuit interference, the conductor position exposed after many temperature-sensing element lead-out wire glass dielectric layers staggers vertically; After stripping insulation layer sealing inner assembly 12 through hole in filling with sealant, make the part of every root temperature-sensing element lead-out wire 100 bare exposed conductor all be full of electric insulating sealant.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. an assembled hermetic terminal assembly for enclosed refrigeration motor temperature sensing element, is characterized in that, comprising:
In order to be socketed in the black box outside many temperature-sensing element lead-out wires, described black box has the conical section that the through hole that axially runs through along self and periphery have taper seat, described conical section has front end face and rear end face vertically successively, the diameter of described rear end face is greater than the diameter of described front end face, and described many temperature-sensing element lead-out wires are through described through hole;
Keep out the fixture of end face in the rear;
Fore-and-aft direction vertically executes stressed locking member to described taper seat;
Be set in the installation sleeve outside described fixture and described locking member, described installation sleeve passes the housing of refrigeration motor and is fixedly connected with described housing;
Described installation sleeve has the external screw thread be threaded with described housing and the internal thread be threaded with described fixture and described locking member; Described fixture is hold-down nut, and it has the external screw thread be connected with the internal thread of described installation sleeve; Described locking member is locking nut, and it has to rotate with the taper seat of described the black box conical bore coordinated and the external screw thread be connected with the internal thread of described installation sleeve, and described locking member is socketed on the taper seat of described black box rotationally; The maximum inner diameter of described conical bore is less than the diameter of the rear end face of described taper seat.
2. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 1, it is characterized in that: the axis of described installation sleeve runs through isometrical through hole, the inwall of described isometrical through hole is provided with internal thread, and described fixture and described locking member are threaded in the front and rear of described isometrical through hole respectively.
3. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 1 and 2, it is characterized in that, described black box comprises:
Be enclosed within the outer assembly of sealing outside described many temperature-sensing element lead-out wires and sealing inner assembly vertically successively;
Be set in the lock sleeve outside the outer assembly of described sealing and described sealing inner assembly, the outer circumference surface of described lock sleeve forms described taper seat.
4. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 3, it is characterized in that: the inwall of described lock sleeve is provided with internal thread, the outer assembly of described sealing and described sealing inner assembly are threaded on the internal thread of described lock sleeve respectively.
5. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 3, it is characterized in that: described sealing inner assembly is provided with axial raised boss towards one end of the outer assembly of described sealing, the outer assembly of described sealing is provided with the groove of axial recess towards one end of described sealing inner assembly.
6. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 5, it is characterized in that: described boss is the frustum of a cone, the shape of described groove is the taper barrel compressed that matches with the described frustum of a cone, and the maximum gauge of described groove is less than the maximum gauge of the described frustum of a cone.
7. the assembled hermetic terminal assembly of a kind of enclosed refrigeration motor temperature sensing element according to claim 3, is characterized in that: described outer circumference surface is also arranged with plastic sheath.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310601723.2A CN103560621B (en) | 2013-11-25 | 2013-11-25 | The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310601723.2A CN103560621B (en) | 2013-11-25 | 2013-11-25 | The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element |
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| CN103560621A CN103560621A (en) | 2014-02-05 |
| CN103560621B true CN103560621B (en) | 2016-04-06 |
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| CN201310601723.2A Active CN103560621B (en) | 2013-11-25 | 2013-11-25 | The assembled hermetic terminal assembly of enclosed refrigeration motor temperature sensing element |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449933B (en) * | 2014-08-18 | 2018-07-03 | 重庆美的通用制冷设备有限公司 | Lead ejector and with its compressor and motor |
| EP3293496B1 (en) * | 2016-09-12 | 2018-11-21 | Dr. Johannes Heidenhain GmbH | Length measurement device and method of assembling the same |
| CN106321440B (en) * | 2016-10-18 | 2018-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | The control method of compressor, electric refrigerator and compressor |
| CN112798139A (en) * | 2020-12-23 | 2021-05-14 | 成都伊莱特光测科技有限公司 | Hydroelectric set axle bush temperature detection optical fiber sensor |
Citations (4)
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| CN201737973U (en) * | 2010-06-08 | 2011-02-09 | 武汉钢铁(集团)公司 | Cable lead sealing device |
| CN202599594U (en) * | 2012-04-26 | 2012-12-12 | 上海市计量测试技术研究院 | Ultrahigh pressure high temperature resistant seal insulated lead seat |
| WO2013133920A1 (en) * | 2012-03-06 | 2013-09-12 | Waters Technologies Corporation | High pressure fitting for a liquid chromatography system |
| CN203589931U (en) * | 2013-11-25 | 2014-05-07 | 苏州贝得科技有限公司 | Assembly type sealing terminal assembly for temperature sensing elements of enclosed refrigerant motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8431836B2 (en) * | 2008-11-06 | 2013-04-30 | Miretti SpA | Connector apparatus and system for explosion proof engine |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201737973U (en) * | 2010-06-08 | 2011-02-09 | 武汉钢铁(集团)公司 | Cable lead sealing device |
| WO2013133920A1 (en) * | 2012-03-06 | 2013-09-12 | Waters Technologies Corporation | High pressure fitting for a liquid chromatography system |
| CN202599594U (en) * | 2012-04-26 | 2012-12-12 | 上海市计量测试技术研究院 | Ultrahigh pressure high temperature resistant seal insulated lead seat |
| CN203589931U (en) * | 2013-11-25 | 2014-05-07 | 苏州贝得科技有限公司 | Assembly type sealing terminal assembly for temperature sensing elements of enclosed refrigerant motor |
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| CN103560621A (en) | 2014-02-05 |
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