CN209930095U - Encoder cover and motor - Google Patents
Encoder cover and motor Download PDFInfo
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- CN209930095U CN209930095U CN201920738891.9U CN201920738891U CN209930095U CN 209930095 U CN209930095 U CN 209930095U CN 201920738891 U CN201920738891 U CN 201920738891U CN 209930095 U CN209930095 U CN 209930095U
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- encoder
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- 238000009413 insulation Methods 0.000 claims abstract description 35
- 239000007769 metal material Substances 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 6
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 238000004904 shortening Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electrical apparatus, concretely relates to encoder lid and motor. The encoder cover comprises a heat insulation layer, a shielding layer and a grounding part, wherein the heat insulation layer comprises a main body part and an installation part which are connected, the main body part is provided with an accommodating cavity, the accommodating cavity is used for accommodating an encoder, and the installation part is arranged to be connected with the encoder; the shielding layer is made of a metal material and is connected to one side, away from the accommodating cavity, of the heat insulation layer; the grounding part is connected with the shielding layer. The utility model provides a coder lid can provide better shielding guard action for the encoder, and can also prevent that the heat that motor work produced from transmitting to the encoder on through the coder lid to guarantee that the encoder normally works, and prevent that the life of encoder from shortening.
Description
Technical Field
The utility model relates to the technical field of electrical apparatus, concretely relates to encoder lid and motor.
Background
The motor generally comprises a shell, a stator, a rotor, an encoder cover and other parts, wherein more precise components are included in the encoder, so that the encoder is protected by the encoder cover. The encoder cover of present formula is whole formula metal construction usually to for the encoder provides certain shielding guard action, however, because encoder cover surrounds the encoder, therefore in the in-process of motor work, the heat that the motor work produced can pass through on the encoder shell transmission encoder, and this can produce great adverse effect to the normal work of encoder, shortens the working life of encoder.
SUMMERY OF THE UTILITY MODEL
The utility model discloses (one) the technical problem that solve is: heat generated in the working process of the motor is easy to be transferred to the encoder through the encoder cover, so that great adverse effect is generated on the normal work of the encoder, and the service life of the encoder can be shortened.
(II) technical scheme
In order to realize the above technical problem, the utility model provides an encoder lid, it includes: the heat insulation layer comprises a main body part and an installation part which are connected, the main body part is provided with an accommodating cavity, the accommodating cavity is used for accommodating the encoder, and the installation part is arranged to be connected with the encoder;
the shielding layer is made of a metal material and is connected to one side, away from the accommodating cavity, of the heat insulation layer;
a ground portion connected with the shielding layer.
Optionally, the shielding layer includes a mesh support portion connected to the ground portion, the mesh support portion having a plurality of through holes.
Optionally, the shielding layer further includes a plate-shaped shielding portion, the mesh-shaped supporting portion is connected around the plate-shaped shielding portion, and the plate-shaped shielding portion is disposed opposite to the encoder.
Optionally, the grounding portion is provided in plurality, and the grounding portion and the shielding layer are integrally formed.
Optionally, the grounding portion has a limiting hole, the mounting portion includes a screw, the screw extends into the limiting hole, and the mounting portion is configured to be in threaded connection with the housing.
Optionally, the insulation layer is made of plastic.
Optionally, the heat insulation layer and the shielding layer are formed by integral injection molding.
Optionally, the shielding layer is disposed within the thermal insulation layer.
Optionally, the utility model provides an encoder lid still includes thermal-insulated sealed the pad, thermal-insulated sealed the pad is located the insulating layer deviates from one side of shielding layer.
Based on the encoder lid that any above-mentioned provided, the utility model discloses the second aspect still provides a motor, and it includes shell, stator, rotor, encoder and any above-mentioned encoder lid that provides, the stator the rotor with the encoder all with the shell is connected, the encoder lid is located outside the encoder, and with the shell is connected.
(III) advantageous effects
The utility model provides a coder lid can be applied to the motor, and it includes insulating layer, shielding layer and ground connection portion, and the shielding layer is made by metal material, and it passes through ground connection portion ground connection to provide effectual shielding guard action to the encoder; simultaneously, after installing this encoder lid to the encoder, still press from both sides between shielding layer and the encoder and be equipped with the insulating layer to in the working process of motor, even if the motor produces certain heat, under the effect of insulating layer, also can prevent that the heat that the motor produced from passing through the encoder lid and transmitting to the encoder on, thereby guarantee that the encoder normally works, and can prevent that the encoder from shortening life because of operational environment temperature is higher.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an encoder cover according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure in a cover of an encoder provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a motor according to an embodiment of the present invention.
Reference numerals
1-a heat insulation layer;
11-a body portion;
12-a mounting portion;
121-screws;
2-a shielding layer;
21-a mesh support;
211-a through hole;
22-plate-shaped shield;
3-a ground part;
31-a limiting hole;
4-a housing;
5-an encoder;
6-a socket;
7-screw holes;
8-outlet hole.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
As shown in fig. 1, the utility model provides an encoder lid, including insulating layer 1, shielding layer 2 and grounding portion 3, wherein, shielding layer 2 is connected with insulating layer 1, and grounding portion 3 is connected with shielding layer 2. In detail, the heat insulation layer 1 comprises a main body part 11 and a mounting part 12, the main body part 11 is provided with a containing cavity (not shown in the figure), the mounting part 12 is connected with the main body part 11, for example, in the process of assembling the motor, the whole encoder cover can be connected on the shell 4 of the motor through the mounting part 12, and the encoder 5 is contained in the containing cavity; the shielding layer 2 is connected to one side of the heat insulation layer 1, which is far away from the accommodating cavity; and, shielding layer 2 still is connected with ground connection portion 3, and insulating layer 1 in the encoder lid is located between shielding layer 2 and the other parts of motor to in the working process of motor, the utility model provides an encoder lid both can provide effectual shielding guard action for encoder 5, still is difficult to make the heat that motor work produced transmit to encoder 5 on through the encoder lid.
Specifically, the heat insulation layer 1 can be made of materials with good heat insulation effect, such as glass fiber, asbestos or plastics; preferably, the heat insulation layer 1 can be made of plastic, so that the production and design cost of the heat insulation layer 1 is relatively low while the heat insulation effect is ensured to be high; the main body part 11 and the mounting part 12 can be formed in an integrated forming mode, so that on one hand, the processing complexity of components can be reduced, and on the other hand, the connection reliability between the main body part 11 and the mounting part 12 can be improved; the shape and size of the receiving cavity can be determined according to the actual structure of the encoder 5, and are not limited herein; the mounting portion 12 and the housing 4 may be connected in various manners, such as a snap connection, a plug connection, or a connector connection, and preferably, the encoder cover and the housing 4 of the motor may be connected by a threaded connector, which is easy and convenient to operate and has high reliability. For example, as shown in fig. 1, the encoder cover may be provided with a screw hole 7 and an outlet hole 8, the encoder cover may be fixedly connected to the housing 4 of the motor through the socket 6, and the wires in the encoder 5 may extend through the outlet hole 8 and finally be connected to the pins in the socket 6.
The shielding layer 2 is made of a metal material, and preferably, the shielding layer 2 can be made of metal aluminum, so that the total weight and the production cost of the whole encoder cover can be reduced while the shielding effect is improved; can be through modes such as gluing or joint, be connected shielding layer 2 as an organic whole with insulating layer 1, and shielding layer 2's shape can be with insulating layer 1's shape looks adaptation to guarantee the degree of agreeing with between the two.
The shape of the grounding portion 3 can be determined according to actual conditions, and in order to improve the shielding protection effect of the whole encoder cover, preferably, the grounding portion 3 can be provided in plurality, the grounding portions 3 can be uniformly arranged on the same side of the shielding layer 2 at intervals, the grounding portions 3 can be identical in shape, and the shielding layer 2 and the grounding portions 3 can be formed by metal materials in an integrated manner, which can ensure a reliable and stable connection relationship between the grounding portion 3 and the shielding layer 2. Alternatively, the grounding portion 3 may be directly grounded, or the grounding portion 3 may be connected to the housing 4 of the motor, which may also generate an equivalent grounding effect, preferably, the grounding portion 3 may be connected to the housing 4 of the motor, specifically, the grounding portion 3 may be directly connected to or in contact with the housing 4 of the motor, preferably, the grounding portion 3 may also be fixedly connected to the housing 4 of the motor by a clamping member or a connecting member, which may improve the connection stability between the grounding portion 3 and the housing 4 of the motor, thereby ensuring that the shielding layer 2 can generate a reliable shielding protection effect.
Preferably, as shown in fig. 1 and 3, a limit hole 31 may be further formed on the grounding portion 3, and the mounting portion 12 may be connected to the housing 4 of the motor through a screw 121, in the process of assembling the motor, the screw 121 may be extended into the limit hole 31 of the grounding portion 3, and then the screw 121 is screwed to the housing 4 of the motor, by adopting this mounting manner, a stable connection relationship between the grounding portion 3 and the housing 4 of the motor may be ensured, so that even if the motor vibrates or shakes during operation, the shielding layer 2 may be matched with the grounding portion 3, thereby providing a stable and reliable shielding protection effect for the encoder 5.
In order to further reduce the overall weight of the shielding layer 2, optionally, as shown in fig. 2, the shielding layer 2 may include a mesh-shaped supporting portion 21, and the mesh-shaped supporting portion 21 has a plurality of through holes 211. Specifically, the shielding layer 2 may be a cylindrical structure, and a cavity having a shape suitable for the thermal insulation layer 1 is disposed inside the shielding layer to mount the thermal insulation layer 1; in order to ensure that the shielding layer 2 has higher structural strength, the net-shaped supporting part 21 may be a regular net-shaped structure, for example, the structure providing the supporting function may be radially arranged and diverged from the center to the periphery; alternatively, it may also be a rectangular grid-like structure. Obviously, during the operation of the motor, the metal mesh support 21 connected to the grounding part 3 can also provide a certain shielding protection for the encoder 5; the shape, size, and actual number of the through-holes 211 may be selected according to actual circumstances, and are not particularly limited herein. In the production process, the net-shaped supporting portion 21 may be formed by die-casting and demolding a metal material, and the net-shaped supporting portion 21 and the grounding portion 3 may be connected by welding or the like, in addition to being formed by integral molding.
Further, the shielding layer 2 may further include a plate-shaped shielding portion 22, the mesh-shaped supporting portion 21 surrounds and connects the plate-shaped shielding portion 22, and in the process of assembling the motor, the plate-shaped shielding portion 22 and the encoder 5 may be arranged in a right-to-right manner, so that under the effect of the plate-shaped supporting portion, a shielding protection effect may be provided for the encoder 5 more comprehensively, and it is prevented that a more complete shielding protection effect cannot be provided for the encoder 5 due to the through hole 211 existing in the mesh-shaped supporting portion 21.
Specifically, the specific shape of the plate-shaped shielding portion 22 may be determined according to the shape of the portion of the encoder 5 facing the encoder cover, and if the encoder 5 has a cylindrical structure, the plate-shaped encoder 5 may have a circular plate-shaped structure, so as to provide a more comprehensive shielding protection effect for the encoder 5; preferably, in the process of designing and producing the shielding layer 2, the external dimension of the plate-shaped shielding portion 22 may be slightly larger than the dimension of the corresponding part on the encoder 5 to be shielded and protected, so as to further enhance the shielding protection effect provided by the whole shielding layer 2 to the encoder 5, and the thickness of the plate-shaped shielding portion 22 may be determined according to actual requirements. The plate-shaped shielding portion 22 and the mesh-shaped supporting portion 21 may be formed by integral die casting; in addition, when the heat insulation layer 1 is made of plastic or other materials, the shielding layer 2 may be formed first, and then the shielding layer 2 and the heat insulation layer 1 are formed into a whole in the process of forming the heat insulation layer 1 by means of integral injection molding, in this case, a part of the heat insulation layer 1 is also inserted into the through hole 211 of the mesh support portion, so that the heat insulation layer 1 is basically arranged outside the shielding layer 2, which can further prevent heat generated in the working process of the motor from being transferred to the encoder 5 through the encoder cover.
Alternatively, the shielding layer 2 may be located in the heat insulation layer 1, so as to further prevent heat generated by the motor from being transferred to the shielding layer 2 made of a metal material, and further transferred to the encoder 5 relatively close to the encoder cover. In this case, the mode of integral injection molding can be still adopted, and the shielding layer 2 is directly embedded in the heat insulation layer 1 in the process of forming the heat insulation layer 1, so that the processing mode is simple and convenient; in addition, the heat insulation layer 1 can also provide certain protection effect for the shielding layer 2 made of metal materials, so that the shielding layer 2 is prevented from being exposed to the outside and being corroded and damaged to lose the shielding protection effect.
In order to further prevent heat generated during the operation of the motor from being transferred to the encoder 5 through the encoder cover, preferably, the encoder cover provided by the present invention may further include a heat insulating gasket (not shown in the figure), the heat insulating gasket is located on a side of the heat insulating layer 1 away from the shielding layer 2, so that the connection between the encoder cover and other parts of the motor is further isolated through the heat insulating gasket during the assembly of the motor; meanwhile, under the action of the heat insulation sealing gasket, the connection sealing performance between the heat insulation part and the shell 4 of the motor can be improved, so that foreign matters are prevented from entering the motor through a gap between the heat insulation part and the shell.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified. The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. An encoder cap, comprising:
the heat insulation layer (1) comprises a main body part (11) and an installation part (12) which are connected, the main body part (11) is provided with an accommodating cavity, the accommodating cavity is used for accommodating the encoder (5), and the installation part (12) is arranged to be connected with the encoder (5);
the shielding layer (2) is made of a metal material, and the shielding layer (2) is connected to one side, away from the accommodating cavity, of the heat insulation layer (1);
a ground connection part (3), the ground connection part (3) being connected with the shielding layer (2).
2. Encoder cover according to claim 1, characterized in that the shielding layer (2) comprises a mesh support (21), the mesh support (21) being connected with the grounding (3), the mesh support (21) having a plurality of through-going holes (211).
3. Encoder cover according to claim 2, characterized in that the shielding layer (2) further comprises a plate-like shielding part (22), the web-like support part (21) is connected around the plate-like shielding part (22), and the plate-like shielding part (22) is arranged directly opposite to the encoder (5).
4. The encoder cover according to claim 1, wherein the grounding portion (3) is provided in plurality, and the plurality of grounding portions (3) are integrally formed with the shield layer (2).
5. Encoder cover according to claim 4, characterized in that the grounding portion (3) has a stop hole (31), the mounting portion (12) comprises a screw (121), the screw (121) extends into the stop hole (31), and the mounting portion (12) is arranged in threaded connection with the housing (4).
6. Encoder cover according to any of claims 1-5, characterized in that the insulation layer (1) is made of plastic.
7. Encoder cover according to any of claims 1-5, characterized in that the insulation layer (1) and the shielding layer (2) are formed by means of integral injection molding.
8. Encoder cover according to any of claims 1-5, characterized in that the shielding layer (2) is arranged inside the insulation layer (1).
9. Encoder cap according to any of claims 1-5, characterized by further comprising a heat insulating gasket located at the side of the heat insulating layer (1) facing away from the shielding layer (2).
10. An electrical machine, characterized in that it comprises a housing (4), a stator, a rotor, an encoder (5) and an encoder cover according to any one of claims 1 to 9, the stator, the rotor and the encoder (5) all being connected to the housing (4), the encoder cover being provided outside the encoder (5) and being connected to the housing (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738891.9U CN209930095U (en) | 2019-05-21 | 2019-05-21 | Encoder cover and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920738891.9U CN209930095U (en) | 2019-05-21 | 2019-05-21 | Encoder cover and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209930095U true CN209930095U (en) | 2020-01-10 |
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ID=69091573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920738891.9U Active CN209930095U (en) | 2019-05-21 | 2019-05-21 | Encoder cover and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209930095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224554A (en) * | 2019-05-21 | 2019-09-10 | 珠海格力电器股份有限公司 | Encoder cover and motor |
-
2019
- 2019-05-21 CN CN201920738891.9U patent/CN209930095U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224554A (en) * | 2019-05-21 | 2019-09-10 | 珠海格力电器股份有限公司 | Encoder cover and motor |
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