CN112134398A - Motor leading-out terminal sealing device and motor - Google Patents
Motor leading-out terminal sealing device and motor Download PDFInfo
- Publication number
- CN112134398A CN112134398A CN202011062888.3A CN202011062888A CN112134398A CN 112134398 A CN112134398 A CN 112134398A CN 202011062888 A CN202011062888 A CN 202011062888A CN 112134398 A CN112134398 A CN 112134398A
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- China
- Prior art keywords
- motor
- outlet end
- insulating sleeve
- sealing device
- motor outlet
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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
- H02K5/22—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
-
- 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
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a motor lead-out terminal sealing device and a motor, wherein the motor lead-out terminal sealing device comprises: the first insulating sleeve is used for being sleeved with a wire outlet hole of the motor shell and is provided with a wire through hole for a wire outlet end of a power supply machine to penetrate through; the sealing body is sleeved on the periphery of the motor wire outlet end and has elasticity; the sealing body is respectively in fit contact with the peripheral part of the motor wire outlet end and the end surface of the first insulating sleeve after being deformed under the extrusion of the fastening piece; a resilient compression member disposed between the sealing body and the fastener. Form the detachable seal structure between first insulation sleeve and the motor leading-out terminal through seal, elasticity compression spare and fastener, when guaranteeing to have good leakproofness all the time between first insulation sleeve and the motor leading-out terminal, be convenient for the later stage to maintain the motor leading-out terminal. The motor comprises the motor wire outlet end sealing device and has the beneficial effects.
Description
Technical Field
The invention relates to the technical field of motor sealing devices, in particular to a motor outlet end sealing device. In addition, the invention also relates to a motor comprising the motor outlet end sealing device.
Background
In the prior art, the sealing connection between the motor outlet end and the motor shell is usually realized through a glue pouring mode, so that cooling liquid is sealed in the motor shell, and the leakage of the cooling liquid in the motor is prevented.
However, when the motor outlet end is connected with the motor shell in a glue pouring manner, after the sealant is cured, the motor outlet end and the motor shell are fixedly connected into a whole, and the motor outlet end and the motor shell cannot be separated from each other.
Obviously, the fixed and non-detachable sealing connection mode is inconvenient for maintaining the outlet end of the motor in the later period; meanwhile, the operation is inconvenient during connection, the glue to be poured needs to be cured, the installation period is long, and early installation is inconvenient.
Therefore, how to provide a motor outlet end sealing device to facilitate early installation and later maintenance is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention is to provide a motor outlet end sealing device, which is convenient for early installation and later maintenance.
Another object of the present invention is to provide a motor including the above motor outlet end sealing device, which is convenient for maintaining the motor outlet end.
In order to achieve the above purpose, the invention provides the following technical scheme:
an electric motor outlet end sealing device, comprising:
the first insulating sleeve is used for being sleeved with a wire outlet hole of the motor shell and is provided with a wire through hole for a wire outlet end of a power supply machine to penetrate through;
the sealing body is sleeved on the periphery of the motor wire outlet end and has elasticity;
the sealing body is deformed under the extrusion of the fastening piece and then is respectively in contact with the peripheral part of the motor wire outlet end and the end surface of the first insulating sleeve in an attaching manner;
an elastic compression member disposed between the seal body and the fastener.
Preferably, one end of the sealing body facing the first insulating sleeve is provided with an outer conical surface, and the first insulating sleeve is provided with an inner conical surface for being in contact with the outer conical surface in a fitting manner.
Preferably, the motor further comprises a second insulating sleeve clamped between the fastening piece and the elastic compression piece, and the second insulating sleeve is sleeved on the outer periphery of the motor outlet end.
Preferably, the second insulating sleeve is provided with a recess for receiving the resilient compression member.
Preferably, a compression ring is arranged between the elastic compression piece and the sealing body.
Preferably, the sealing body includes an extension portion for extending into the groove, and the clamp ring includes:
the first ring part is clamped between the elastic compression piece and the end surface of the deep part;
and the second ring part is clamped between the side wall of the groove and the outer side of the deep part.
Preferably, an outer circumferential portion of the first insulating sleeve is provided with an external thread, and the fastening member includes:
an internal thread for threaded connection with the external thread;
and the pressing table is used for pressing the second insulating sleeve.
Preferably, the outer peripheral part of the first insulating sleeve is provided with a radially inwards concave limiting groove, and the limiting groove is arranged at the tail end of the external thread to be matched with the end part of the internal thread for limiting.
Preferably, one end of the first insulating sleeve facing the inside of the motor shell is provided with a first spigot for axial limiting; and/or one end of the threading hole, which faces towards the inside of the motor shell, is provided with a stepped hole for axially limiting a second spigot of the motor wire outlet end.
The utility model provides a motor, includes motor casing and motor leading-out terminal, still includes any one kind of above-mentioned motor leading-out terminal sealing device, motor leading-out terminal sealing device's first insulation sleeve with motor casing's wire hole cup joints, the motor leading-out terminal wears to locate first insulation sleeve's through wires hole, and shown motor leading-out terminal sealing device's seal cover is located the peripheral part of motor leading-out terminal.
The invention provides a motor outlet end sealing device.A first insulating sleeve is arranged between a motor shell and a motor outlet end, and a sealing structure between the first insulating sleeve and the motor outlet end is formed by a sealing body, an elastic compression piece and a fastening piece.
Wherein, because displacement such as wearing and tearing volume and/or deformation volume that the elastic compression spare can compensate the seal, also promptly, the elastic compression spare will compress tightly the seal always to make the seal can compress tightly the peripheral part of motor leading-out terminal and first insulating sleeve's terminal surface all the time, make and have good leakproofness all the time between first insulating sleeve and the motor leading-out terminal, avoid the inside cooling liquid of motor to leak between first insulating sleeve and the motor leading-out terminal.
Simultaneously, because fastener and first insulation sleeve or motor leading-out terminal detachable fixed connection, through dismantling the fastener, can realize dismantling of elastic compression piece and seal, and then make first insulation sleeve and motor leading-out terminal realize the separation, the later stage of being convenient for is maintained the motor leading-out terminal.
In addition, during installation, the motor outlet end sealing device is formed between the motor shell and the motor outlet end through the assembly among the first insulating sleeve, the sealing body, the fastening piece and the elastic compression piece, glue pouring operation is avoided, glue curing and the like do not need to wait, and therefore early-stage installation is facilitated.
The motor provided by the invention comprises the motor outlet end sealing device and has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional view of a motor outlet end sealing device according to an embodiment of the present invention.
The reference numerals in fig. 1 are as follows:
the motor comprises a motor shell 1, a first insulating sleeve 2, a first spigot 21, a motor outlet 3, a second spigot 31, a sealing body 4, a fastening piece 5, a pressing platform 51, an elastic compression piece 6, a second insulating sleeve 7, a groove 71, a compression ring 8 and a motor lead-out wire 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a motor outlet end sealing device which is convenient for later maintenance. The other core of the invention is to provide the motor comprising the motor outlet end sealing device, which is convenient for maintaining the motor outlet end.
Fig. 1 is a cross-sectional view of a motor outlet end sealing device according to an embodiment of the present invention.
The invention provides a motor outlet end sealing device which mainly comprises a first insulating sleeve 2, a sealing body 4, a fastening piece 5 and an elastic compression piece 6.
Specifically, the first insulating sleeve 2 is used for being sleeved with a wire outlet hole of the motor housing 1, and meanwhile, the first insulating sleeve 2 is provided with a threading hole for a wire outlet end 3 of the power supply motor to pass through.
That is, the present invention utilizes the switching function of the first insulating sleeve 2, and the first insulating sleeve 2 is arranged between the motor housing 1 and the motor outlet 3, so that the motor outlet 3 and the motor housing 1 are indirectly connected.
After assembly, the first insulating sleeve 2 is assembled in the wire outlet hole of the motor shell 1, and the motor wire outlet end 3 is assembled in the wire threading hole of the first insulating sleeve 2.
The sealing body 4 is sleeved on the periphery of the motor outlet end 3, has elasticity and can be elastically deformed under the action of pressure.
The fastener 5 is detachably and fixedly connected with the first insulating sleeve 2 or the motor wire outlet end 3 and is used for compressing the sealing body 4 to enable the sealing body 4 to generate elastic deformation.
The seal 4 takes place elastic deformation after the extrusion effect of fastener 5 is out of shape, contacts with the peripheral part of motor leading-out terminal 3 and the terminal surface laminating of first insulating sleeve 2 respectively to realize the sealing connection between first insulating sleeve 2 and the motor leading-out terminal 3.
In order to allow the fastening member 5 to generate a continuous pressing force on the sealing body 4 without being affected by abrasion of the sealing body 4, a permanent deformation amount, or the like, an elastic compression member 6 is provided between the sealing body 4 and the fastening member 5.
As the name suggests, the elastic compression piece 6 has elasticity and can be elastically deformed after being extruded; under the extrusion of fastener 5, elasticity compressing part 6 is in the compression state, and itself has the elasticity restoring force, consequently, at the fixed back of fastener 5, produces the extrusion force to elasticity compressing part 6, makes elasticity compressing part 6 compressed, simultaneously, transmits the extrusion force of fastener 5 to seal 4 through elasticity compressing part 6, makes seal 4 by extrusion deformation to compress tightly the peripheral part of motor leading-out terminal 3 and the terminal surface of first insulating sleeve 2, realize sealed effect.
In the using process, after the sealing body 4 is worn or generates a permanent deformation amount along with the increase of the using time, the elastic compression piece 6 recovers a certain deformation amount to compensate the wear amount and/or the deformation amount of the sealing body 4, namely, the elastic compression piece 6 always compresses the sealing body 4, so that the sealing body 4 can always compress the outer peripheral part of the motor outlet end 3 and the end surface of the first insulating sleeve 2, and the first insulating sleeve 2 and the motor outlet end 3 always have good sealing performance.
Therefore, the motor outlet end sealing device provided by the invention has the advantages that the first insulating sleeve 2 is arranged between the motor shell 1 and the motor outlet end 3, the sealing structure between the first insulating sleeve 2 and the motor outlet end 3 is formed through the sealing body 4, the elastic compression piece 6 and the fastening piece 5, the sealing performance between the first insulating sleeve 2 and the motor outlet end 3 is realized, and the cooling liquid in the motor is prevented from leaking from the space between the first insulating sleeve 2 and the motor outlet end 3.
Simultaneously, because fastener 5 and first insulating sleeve 2 or the 3 detachable fixed connection of motor leading-out terminal, through dismantling fastener 5, can realize dismantling of elastic compression piece 6 and seal 4, and then make first insulating sleeve 2 and motor leading-out terminal 3 realize the separation, the later stage of being convenient for is maintained motor leading-out terminal 3.
It should be noted that the present invention does not limit the specific shape of the elastic compression member 6, and preferably, the elastic compression member 6 is a compression spring.
In addition, the present invention is not limited to the specific shape of the sealing body 4 in contact with the end surface of the first insulating sleeve 2, and in order to compensate for the variation in the axial displacement of the sealing body 4 and the variation in the radial displacement of the sealing body 4, in addition to the above-described embodiment, the end of the sealing body 4 facing the first insulating sleeve 2 is provided with an outer tapered surface, and the first insulating sleeve 2 is provided with an inner tapered surface for contact with the outer tapered surface.
That is to say, in this embodiment, the contact surface between the sealing body 4 and the first insulating sleeve 2 is a tapered surface, so that a small gap generated in the radial direction by the sealing body 4 can be compensated, and the sealing effect is better.
In order to ensure the stability of the stress of the elastic compression element 6 and avoid the inclination or abrasion of the elastic compression element 6 in the fixing process of the fastening element 5, on the basis of the above embodiment, the motor further comprises a second insulating sleeve 7 interposed between the fastening element 5 and the elastic compression element 6, and the second insulating sleeve 7 is sleeved on the outer periphery of the motor outlet end 3.
That is, the second insulating sleeve 7 is disposed between the fastening member 5 and the elastic compression member 6 to protect the elastic compression member 6, so as to prevent the fastening member 5 from damaging the elastic compression member 6 during the fixing process.
That is, the fastener 5 is pressed against the side of the second insulating sleeve 7 remote from the elastic compression member 6, and the pressing force of the fastener 5 is transmitted to the elastic compression member 6 through the second insulating sleeve 7.
In order to ensure the correct position of the resilient compression element 6, on the basis of the above described embodiment, the second insulating sleeve 7 is provided with a recess 71 for accommodating the resilient compression element 6.
That is, when the device is installed, the elastic compression member 6 is placed in the groove 71, and the groove 71 acts as a circumferential limit for the elastic compression member 6.
Further, in order to prevent the elastic compression member 6 from directly acting on the sealing body 4 and causing damage to the sealing body 4, a compression ring 8 is provided between the elastic compression member 6 and the sealing body 4 in the above embodiment.
That is to say, in this embodiment, sealing 4 and elastic compression piece 6 are not direct contact, and the effort of elastic compression piece 6 passes through clamp ring 8 and transmits to sealing 4, avoids causing the damage to the side of sealing 4 towards elastic compression piece 6 in the installation.
In view of the stability of the entire structure, on the basis of the above-described embodiment, the sealing body 4 includes the protruding portion for protruding into the recess 71, and the clamp ring 8 includes the first ring portion interposed between the elastic compression member 6 and the end surface of the protruding portion, and the second ring portion interposed between the side wall of the recess 71 and the outer side of the protruding portion.
That is, as shown in fig. 1, the elastic compression element 6 in the present embodiment is completely sunk into the groove 71, and at the same time, the compression ring 8 is also located in the groove 71, and a part, i.e., a deep part, of the sealing body 4 is also located in the groove 71, so that the groove 71 has a circumferential limiting function on the compression ring 8 and the deep part of the sealing body 4 at the same time.
In addition, in order to avoid the end surface of the deep part of the sealing body 4 from contacting with the elastic compression part 6 and simultaneously avoid the second insulating sleeve 7 from wearing the side surface of the deep part, the compression ring 8 in the embodiment comprises a first ring part and a second ring part, the first ring part separates the elastic compression part 6 from the end surface of the deep part of the sealing body 4, and the second ring part separates the inner side wall of the groove 71 from the outer side surface of the deep part, so that the sealing body 4 is well protected.
It should be noted that the specific fixing manner of the detachable connection of the fastener 5 and the first insulating sleeve 2 or the motor outlet terminal 3 is not limited in the present invention.
Preferably, in addition to the above-described embodiment, the outer circumferential portion of the first insulating sleeve 2 is provided with an external thread, and the fastening member 5 includes an internal thread for screwing with the external thread and a pressing table 51 for pressing the second insulating sleeve 7.
That is, the fastening member 5 and the first insulating sleeve 2 in this embodiment are fixedly connected by a screw, and after the two are fixedly connected, the pressing table 51 of the fastening member 5 presses the second insulating sleeve 7, that is, the axial pre-tightening force of the fastening member 5 acts on the second insulating sleeve 7 through the pressing table 51, so that the second insulating sleeve 7 transmits the pressing force of the fastening member 5 to the elastic compression member 6, and finally acts on the sealing body 4.
It should be noted that, in this embodiment, a specific position at which the fastener 5 presses the second insulating sleeve 7 is not limited, for example, as shown in fig. 1, the second insulating sleeve 7 includes a socket portion and an extending portion, a diameter of the socket portion is greater than a diameter of the extending portion, and a step surface is formed at a connection portion of the socket portion and the extending portion.
Further, in order to ensure the fixing firmness of the fastening member 5, on the basis of the above embodiment, the outer circumferential portion of the first insulating sleeve 2 is provided with a radially inward concave limiting groove, and the limiting groove is provided at the end of the external thread to cooperate with the end portion of the internal thread for limiting.
That is, after the fastening member 5 is in threaded connection with the first insulating sleeve 2, the end part of the internal thread of the fastening member 5 is embedded into the limiting groove, and the limiting groove plays a certain axial limiting role for the fastening member 5.
Preferably, the limit groove is located just at the end face of the motor housing 1 facing outward.
That is, after the fastening member 5 and the first insulating sleeve 2 are connected in place, the end surface of the fastening member 5 is just abutted against the end surface of the motor housing 1 facing to the outside.
In view of the axial position limitation of the first insulating sleeve 2 when the first insulating sleeve 2 is assembled with the motor housing 1, on the basis of the above-mentioned embodiment, the end of the first insulating sleeve 2 facing the inside of the motor housing 1 is provided with the first seam allowance 21 for axial position limitation.
That is, when the first insulating sleeve 2 is installed, the first insulating sleeve 2 is inserted into the wire outlet from the inside of the motor housing 1 to the outside thereof until the first seam allowance 21 abuts against the notch of the motor housing 1 for fitting with the first seam allowance 21, which indicates that the first insulating sleeve 2 is installed in place.
Similarly, considering the problem of axial position limitation of the motor outlet end 3 when the motor outlet end 3 is assembled with the first insulating sleeve 2, on the basis of the above embodiment, the end of the threading hole facing the inside of the motor housing 1 is provided with a stepped hole for axially limiting the second seam allowance 31 of the motor outlet end 3.
That is, the motor outlet end 3 in this embodiment is provided with the second seam allowance 31, when the motor outlet end 3 is installed, the threading hole of the first insulating sleeve 2 is inserted from the inside of the motor to the outside of the motor until the second seam allowance 31 is matched with the stepped hole, which indicates that the motor outlet end 3 and the first insulating sleeve 2 are assembled in place.
It can be understood that the motor outlet terminal 3 is fixedly connected with the motor outlet wire 9, and preferably, the motor outlet wire 9 is connected with the motor outlet terminal 3 by soldering or the like to realize power transmission.
In the above embodiments, the inside of the motor refers to a portion located below the motor housing 1 in fig. 1, and the outside of the motor refers to a portion located above the motor housing 1 in fig. 1.
In addition, the first insulating sleeve 2 and the second insulating sleeve 7 both have insulating properties and belong to insulating materials, so that good electrical insulating properties of the motor lead-out end 3 are ensured.
In addition, the above embodiments describe in detail the first sealing structure between the motor outlet 3 and the first insulating sleeve 2; the present invention is not limited to a specific connection manner between the motor housing 1 and the first insulating sleeve 2, and obviously, the motor housing 1 and the first insulating sleeve 2 are connected in a sealing manner.
The second sealing structure between the motor housing 1 and the first insulating sleeve 2 is not limited in the invention, and the specific structure of the second sealing structure can be the same as or different from that of the first sealing structure.
For example, the second sealing structure may be a sealant, that is, the motor housing 1 and the first insulating sleeve 2 are fixedly connected by potting. Because the first insulating sleeve 2 and the motor outlet end 3 are in the detachable sealing connection mode, the sealing performance between the motor outlet end 3 and the motor shell 1 is ensured, the detachability between the motor outlet end 3 and the motor shell is ensured, and the maintenance of the motor outlet end 3 in the later period is facilitated; meanwhile, the connection mode of the sealant enables the whole structure to be simple.
Besides the motor leading-out end sealing device, the invention also provides a motor comprising the motor leading-out end sealing device disclosed by the embodiment, the motor further comprises a motor shell 1 and a motor leading-out end 3, the first insulating sleeve 2 of the motor leading-out end sealing device is sleeved with the leading-out hole of the motor shell 1, the motor leading-out end 3 is arranged in the threading hole of the first insulating sleeve 2 in a penetrating manner, and the sealing body 4 of the motor leading-out end sealing device is sleeved on the peripheral part of the motor leading-out end 3.
It can be understood that the sealing body 4, the fastening member 5 and the elastic compression member 6 of the motor outlet end sealing device form a sealing structure between the motor outlet end 3 and the first insulating sleeve 2, so as to realize the sealing connection between the motor outlet end 3 and the first insulating sleeve 2.
Simultaneously, because above-mentioned motor leading-out terminal sealing device's fastener 5 and first insulating sleeve 2 or motor leading-out terminal 3 detachable fixed connection, consequently, through dismantling fastener 5, can realize the separation of first insulating sleeve 2 and motor leading-out terminal 3, be convenient for the later stage to motor leading-out terminal 3 maintain.
It should be noted that, the structure of the motor housing 1, the motor outlet 3 and other parts of the motor is referred to the prior art, and the description thereof is omitted.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The motor outlet end sealing device and the motor provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A motor leading-out terminal sealing device is characterized by comprising:
the first insulating sleeve (2) is used for being sleeved with a wire outlet hole of the motor shell (1) and is provided with a threading hole for a wire outlet end (3) of a power supply motor to penetrate through;
the sealing body (4) is sleeved on the periphery of the motor outlet end (3) and has elasticity;
the fastening piece (5) is used for pressing the sealing body (4) and is detachably and fixedly connected with the first insulating sleeve (2) or the motor outlet end (3), and the sealing body (4) is respectively attached and contacted with the peripheral part of the motor outlet end (3) and the end surface of the first insulating sleeve (2) after being deformed under the extrusion of the fastening piece (5);
an elastic compression element (6) arranged between the sealing body (4) and the fastening element (5).
2. The motor outlet end sealing device according to claim 1, wherein the end of the sealing body (4) facing the first insulating sleeve (2) is provided with an outer conical surface, and the first insulating sleeve (2) is provided with an inner conical surface for abutting contact with the outer conical surface.
3. The motor outlet end sealing device according to claim 1, further comprising a second insulating sleeve (7) interposed between the fastening member (5) and the elastic compression member (6), wherein the second insulating sleeve (7) is fitted around an outer peripheral portion of the motor outlet end (3).
4. The motor outlet end sealing device according to claim 3, characterized in that the second insulating sleeve (7) is provided with a groove (71) for accommodating the elastic compression member (6).
5. The motor outlet end sealing device according to claim 4, characterized in that a compression ring (8) is arranged between the elastic compression member (6) and the sealing body (4).
6. The motor outlet end seal according to claim 5, wherein the seal body (4) includes an extension for extending into the groove (71), and the clamp ring (8) includes:
a first ring part interposed between the elastic compression member (6) and an end surface of the deep part;
a second ring portion interposed between a side wall of the recess (71) and an outer side of the penetrating portion.
7. The motor outlet end sealing device according to any one of claims 3-6, wherein the outer circumference of the first insulating sleeve (2) is externally threaded, and the fastening member (5) comprises:
an internal thread for threaded connection with the external thread;
a pressing table (51) for pressing the second insulating sleeve (7).
8. The motor outlet end sealing device according to claim 7, wherein a radially inward concave limiting groove is formed in an outer peripheral portion of the first insulating sleeve (2), and the limiting groove is formed in a terminal end of the external thread to cooperate with an end portion of the internal thread for limiting.
9. The motor outlet end sealing device according to any one of claims 1-6, characterized in that the end of the first insulating sleeve (2) facing the inside of the motor housing (1) is provided with a first spigot (21) for axial retention; and/or one end of the threading hole, which faces the interior of the motor shell (1), is provided with a stepped hole for axially limiting a second spigot (31) of the motor wire outlet end (3).
10. An electric motor, comprising a motor shell (1) and a motor outlet end (3), characterized by further comprising the motor outlet end sealing device of any one of claims 1 to 9, wherein a first insulating sleeve (2) of the motor outlet end sealing device is sleeved with a wire outlet hole of the motor shell (1), the motor outlet end (3) is arranged through a threading hole of the first insulating sleeve (2), and a sealing body (4) of the motor outlet end sealing device is sleeved on the outer periphery of the motor outlet end (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062888.3A CN112134398A (en) | 2020-09-30 | 2020-09-30 | Motor leading-out terminal sealing device and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011062888.3A CN112134398A (en) | 2020-09-30 | 2020-09-30 | Motor leading-out terminal sealing device and motor |
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| CN112134398A true CN112134398A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011062888.3A Pending CN112134398A (en) | 2020-09-30 | 2020-09-30 | Motor leading-out terminal sealing device and motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286573A (en) * | 2022-03-03 | 2022-04-05 | 徐州坤达电动车有限公司 | A waterproof construction for electric vehicle controller |
-
2020
- 2020-09-30 CN CN202011062888.3A patent/CN112134398A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114286573A (en) * | 2022-03-03 | 2022-04-05 | 徐州坤达电动车有限公司 | A waterproof construction for electric vehicle controller |
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