Motor mounting guide and method of mounting

Abstract

This invention provides a motor installation guide device and method for guiding the installation of a motor during compressor assembly. The device includes: a compressor assembly fixture, comprising a base, a housing, and a positioning rod, wherein the positioning rod is used to position the crankshaft of the compressor, and both the housing and the positioning rod are fixedly connected to the base; a guide member, the outer diameter of which is smaller than the inner diameter of the motor; a through hole axially formed at one end of the guide member near the fixture base, through which the positioning rod passes, so that the guide member is fitted onto the positioning rod; and the motor passes through the guide member, such that one end face of the motor abuts against one end face of the housing. This invention reduces the defect rate of damaged enameled wires in the motor and improves the efficiency of motor feeding.

Description

Technical Field

[0001] This invention relates to the field of compressor manufacturing technology, and more specifically, to a motor mounting guide device and mounting method. Background Technology

[0002] During compressor assembly, tooling is typically used, and the motor is first placed on the tooling body before the compressor housing is assembled. The outer periphery of the tooling housing is designed with grooves to facilitate motor assembly, and the connection between these grooves and the upper surface of the tooling housing creates an edge. Since the process of placing the motor onto the tooling body is usually done manually, the motor's enameled wire can easily come into contact with these edges on the tooling housing, causing scratches on the wire. If the subsequent process detects defective enameled wire, it will render the compressor unusable.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a motor installation guide device and installation method, which reduces the defect rate of motor enameled wire damage and helps to improve motor feeding efficiency.

[0005] According to one aspect of the present invention, a motor mounting guide device is provided for guiding the installation of a motor during compressor assembly, the device comprising:

[0006] A compressor assembly fixture includes a base, a housing, and a positioning rod. The positioning rod is used to position the crankshaft of the compressor. Both the housing and the positioning rod are fixedly connected to the base.

[0007] A guide member, the outer diameter of which is smaller than the inner diameter of the motor; a through hole is provided axially at one end of the guide member near the tooling base, and the positioning rod passes through the through hole so that the guide member is sleeved on the positioning rod; the motor passes through the guide member so that one end face of the motor abuts against one end face of the housing.

[0008] Optionally, the guide includes a main body and a constriction portion connected together, wherein the outer diameter of the constriction portion is smaller than the outer diameter of the main body portion, so as to form an accommodating space below the main body portion, the accommodating space being used to accommodate the lead wire of the motor.

[0009] Optionally, the guide further includes a spherical top, the top, the main body, and the contraction portion are connected in sequence, and the first distance between the top and the base of the tooling is greater than the second distance between the contraction portion and the base of the tooling.

[0010] Optionally, the through hole includes a first through hole located in the main body and a second through hole located in the contraction portion. The first through hole and the second through hole are connected. The inner diameter of the first through hole is smaller than the outer diameter of the positioning rod, and the outer diameter of the positioning rod is less than or equal to the inner diameter of the second through hole.

[0011] Optionally, the axial length of the contraction portion is equal to the outer diameter of the contraction portion.

[0012] Optionally, the tooling further includes a pump body positioning seat, which is connected to the positioning rod and the base respectively, and the outer diameter of the pump body positioning seat is larger than the outer diameter of the positioning rod.

[0013] Optionally, the inner diameter of the second through hole is larger than the inner diameter of the first through hole, such that the bottom wall of the main body forms a protruding shoulder at the junction of the first and second through holes, and the protruding shoulder abuts against the positioning rod so that the positioning rod supports the guide.

[0014] Optionally, the difference between the inner diameter of the motor and the outer diameter of the guide is greater than 0.25 mm and less than 0.35 mm, and / or the difference between the inner diameter of the second through hole and the outer diameter of the positioning rod is greater than 0.35 mm and less than 0.45 mm.

[0015] Optionally, the difference between the inner diameter of the motor and the outer diameter of the guide is 0.3 mm, and / or the difference between the inner diameter of the second through hole and the outer diameter of the positioning rod is 0.4 mm.

[0016] Optionally, the outer peripheral surface of the motor is provided with spaced-apart grooves, and the upper end surface of the housing of the tooling is provided with spaced-apart positioning posts. The positioning posts slide in the grooves to achieve positioning of the outer peripheral surface of the motor.

[0017] Optionally, the outer periphery of the guide member is provided with a recess for clamping the guide member.

[0018] According to another aspect of the present invention, a method for installing a motor is provided, wherein any of the above-described motor installation guide devices is used for installation, the method comprising the following steps:

[0019] Set and secure the tooling for assembling the compressor;

[0020] The guide component is fitted onto the positioning rod in the tooling to achieve the assembly of the guide component;

[0021] The motor is guided and installed using the guide member, the motor passes through the guide member, and the motor abuts against the housing of the tooling to complete the installation of the motor;

[0022] Clamp and remove the guide member.

[0023] The advantages of this invention compared to the prior art are as follows:

[0024] The motor installation guide device and installation method provided by this invention utilizes guide components to guide the motor during the motor feeding process and position the motor circumferentially, so that the motor can only move up and down, avoiding contact between the motor's enameled wire and the tooling. The enameled wire will not be damaged due to collision with the tooling, reducing the defect rate of motor enameled wire damage and improving the motor feeding efficiency. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1 This is a schematic diagram of the structure of a motor mounting guide device disclosed in an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the compressor assembly fixture in a motor mounting guide device disclosed in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the guide member in a motor mounting guide device according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a motor stator to be installed according to an embodiment of the present invention;

[0030] Figure Labels

[0031] 11. Tooling; 12. Guide component; 13. Base; 14. Housing; 15. Positioning rod; 16. Top; 17. Main body; 18. Retractable part; 19. Accommodation space; 20. First through hole; 21. Second through hole; 22. Pump body positioning seat; 23. Positioning pin; 24. Recessed part; 25. Protruding shoulder; 26. Lead wire; Detailed Implementation

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, these example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a full understanding of embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced without one or more of the specific details described, or other methods, materials, apparatus, etc., can be employed. In other instances, well-known technical solutions are not shown or described in detail to avoid obscuring aspects of this disclosure. The same reference numerals in the figures denote the same or similar structures, and therefore their detailed descriptions are omitted.

[0033] The terms “a,” “one,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “including,” “having,” and “have” are used to indicate an open-ended inclusion meaning and that other elements / components / etc. may exist in addition to the listed elements / components / etc.

[0034] like Figure 1 As shown, an embodiment of the present invention discloses a motor installation guide device. This installation guide device is used to guide the motor during compressor assembly. In this embodiment, the motor installation guide device includes a compressor assembly fixture 11 and a guide member 12. During the specific assembly process of the compressor, after the compressor assembly fixture 11 is set, the guide member 12 is placed in, and then the motor is placed on top, the guide member 12 is removed, and the compressor pump body is placed in sequence.

[0035] like Figure 2 As shown, in this embodiment, the tooling 11 includes a base 13, a pump body positioning seat 22, a positioning rod 15, and a housing 14. The base 13 and the housing 14 are fixedly connected. The pump body positioning seat 22 and the positioning rod 15 are housed within the housing 14 of the tooling 11. The pump body positioning seat 22 is connected to both the positioning rod 15 and the base 13. The positioning rod 15 is used to position the crankshaft of the compressor during the assembly of the compressor pump body.

[0036] In this embodiment, the outer diameter of the guide member 12 is smaller than the inner diameter of the motor, and the motor passes through the guide member 12 during assembly. The guide member 12 has an axially oriented through hole at one end near the base 13 of the tooling 11. The positioning rod 15 passes through the through hole, so that the guide member 12 is fitted onto the positioning rod 15. The motor passes through the guide member 12, so that one end face of the motor abuts against one end face of the housing 14. In an optional embodiment, the outer diameter of the pump body positioning seat 22 is larger than the outer diameter of the positioning rod 15.

[0037] like Figure 3 As shown, in this embodiment, along the axial extension direction of the guide member 12, the guide member 12 includes a top 16, a main body 17, and a constriction portion 18 connected in sequence. The top 16, the main body 17, and the constriction portion 18 can be integrally formed. The outer diameter of the constriction portion 18 is smaller than the outer diameter of the main body 17, so that an accommodating space 19 is formed below the main body 17, i.e., a clearance portion is formed. The accommodating space 19 is used to accommodate the lead wire 26 of the motor, i.e., to avoid the lead wire 26 of the motor. Optionally, the top 16 can be arc-shaped, such as spherical, which can prevent the top 16 from damaging the enameled wire at the lower end of the motor during the motor insertion process, thus reducing the defect rate of damaged enameled wire.

[0038] The first distance between the top 16 and the base 13 of the tooling 11 is greater than the second distance between the contraction portion 18 and the base 13 of the tooling 11. That is, the top 16 of the guide member 12 is... Figure 1 From a mid-angle perspective, the constricted portion 18 of the guide member 12 is located above... Figure 1 From a mid-angle perspective, below. In this embodiment, the guide 12 has a hollow structure, which facilitates the insertion and removal of the guide 12, making the operation more convenient. Specifically, the main body 17 of the guide 12 has a cavity that connects to a through hole on the lower side of the guide 12, thus forming a hollow structure for the guide 12.

[0039] In this embodiment, the aforementioned through holes include a first through hole 20 located in the main body 17 and a second through hole 21 located in the contraction portion 18, and the first through hole 20 and the second through hole 21 are connected. Furthermore, the first through hole 20 connects to a cavity within the main body 17 of the guide member 12. The main body 17 of the guide member 12 includes a bottom wall and side walls surrounding the bottom wall. The first through hole 20 is axially extending through the bottom wall of the main body 17 of the guide member 12. The second through hole 21 is axially extending through the contraction portion 18. That is, the second through hole 21 penetrates both the upper and lower end faces of the contraction portion 18.

[0040] The inner diameter of the first through hole 20 is smaller than the outer diameter of the positioning rod 15, and the outer diameter of the positioning rod 15 is smaller than or equal to the inner diameter of the second through hole 21, so that the positioning rod 15 of the tooling 11 can be inserted into the guide member 12, thereby allowing the guide member 12 to abut against the positioning rod 15 of the tooling 11. In a preferred embodiment, the outer diameter of the positioning rod 15 is equal to the inner diameter of the second through hole 21, which helps to improve the support stability of the positioning rod 15 on the guide member 12.

[0041] refer to Figure 3 In this embodiment, the axial length L of the contraction portion 18 is equal to its outer diameter D3. This balances the ease of operation of the guide 12 with the stability of the positioning rod 15 in supporting it. For example, the length L of the contraction portion 18 can be 30 mm, and the outer diameter D3 can also be 30 mm. It should be noted that the present invention does not limit the length or outer diameter of the contraction portion 18; those skilled in the art can adjust these dimensions as needed.

[0042] In an optional embodiment, the inner diameter of the second through hole 21 is larger than the inner diameter of the first through hole 20, so that the bottom wall of the main body 17 forms a protruding shoulder 25 at the connection between the first through hole 20 and the second through hole 21. The protruding shoulder 25 abuts against the positioning rod 15, so that the positioning rod 15 supports the guide member 12 and realizes the positioning and fixing of the guide member 12.

[0043] In an alternative embodiment, reference Figures 2 to 4 The difference between the inner diameter d2 of the motor and the outer diameter D2 of the guide member 12 is greater than 0.25mm and less than 0.35mm, and / or the difference between the inner diameter of the second through hole 21 and the outer diameter of the positioning rod 15 is greater than 0.35mm and less than 0.45mm. That is, 0.25mm < (d2-D2) < 0.35mm, and / or 0.25mm < (D1-d1) < 0.35mm. Here, the inner diameter d2 of the motor is the inner diameter of the stator. On the one hand, 0.25mm < (d2-D2) < 0.35mm helps ensure the standardization and convenience of the motor placement process, reducing the defect rate of damaged enameled wires and improving the motor loading efficiency. On the other hand, 0.25mm < (D1-d1) < 0.35mm helps improve the support stability of the positioning rod 15 on the guide member 12.

[0044] In a preferred embodiment, the difference between the inner diameter of the motor and the outer diameter of the guide 12 is 0.3 mm, and / or the difference between the inner diameter of the second through hole 21 and the outer diameter of the positioning rod 15 is 0.4 mm.

[0045] In an optional embodiment, the outer peripheral surface of the motor is provided with spaced-apart grooves, and the upper end surface of the housing 14 of the tooling 11 is provided with spaced-apart positioning posts 23, which can slide in the grooves. This achieves a fit between the positioning posts 23 on the tooling 11 and the grooves on the outer peripheral surface of the motor, allowing the motor to rotate to a suitable insertion angle on the guide device, thus improving motor assembly efficiency.

[0046] In an optional embodiment, the outer periphery of the guide member 12 is provided with a recess 24 for clamping the guide member 12. The recess 24 facilitates clamping the guide member 12 and removing the guide member 12.

[0047] The motor installation guide device provided in the above embodiments of the present invention can reduce the defect rate of motor enameled wire damage from 50PPM to 0 and improve motor loading efficiency by 20%; it realizes standardized production of motor loading, so that both inexperienced and experienced employees can operate in a unified standard during the loading process.

[0048] Another embodiment of the present invention provides a motor mounting method for assembling a motor into a compressor housing. This mounting method employs the motor mounting guide device disclosed in any of the above embodiments. Detailed structural features and advantages of the above-described motor mounting guide device can be found in the descriptions of the above embodiments, and will not be repeated here. The above-described mounting method includes the following steps:

[0049] S110, setting and securing the tooling for assembling the compressor.

[0050] S120, the guide component is fitted onto the positioning rod in the tooling to assemble the guide component.

[0051] S130, the motor is guided and installed using the guide member. The motor passes through the guide member and abuts against the housing of the tooling to complete the installation of the motor.

[0052] S140, clamp and remove the aforementioned guide member.

[0053] Optionally, another embodiment of the present invention also provides a motor mounting method, which, based on the above embodiments, further includes the following step after step S140:

[0054] Place the pump body above the motor, and place the compressor housing around the motor, with the motor and compressor housings having an interference fit.

[0055] In summary, the motor mounting guide device and mounting method provided by the present invention have at least the following advantages:

[0056] The motor installation guide device and installation method disclosed in this invention utilize guide components. On the one hand, they guide the motor during the motor feeding process and position the motor circumferentially, ensuring that the motor can only move up and down, preventing the enameled wire of the motor from contacting the tooling and avoiding damage to the enameled wire due to collision with the tooling. This reduces the defect rate of motor enameled wire damage and improves the motor feeding efficiency. On the other hand, based on the cooperation between the positioning post on the tooling and the sliding groove on the outer periphery of the motor, the motor can rotate to a suitable insertion angle on the guide device, which helps to improve the motor assembly efficiency.

[0057] In the description of this invention, it should be understood that the terms "bottom," "longitudinal," "lateral," "upper," "lower," "front," "rear," "vertical," and "horizontal," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the structure or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, and "several" means one or more.

[0058] In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A motor mounting guide device, characterized in that, The device is used to guide the installation of the motor during compressor assembly, and includes: The compressor assembly fixture (11) includes a base (13), a housing (14) and a positioning rod (15), wherein the positioning rod (15) is used to position the crankshaft of the compressor, and both the housing (14) and the positioning rod (15) are fixedly connected to the base (13); The guide (12) includes a main body (17) and a retractable part (18) connected to each other. The outer diameter of the main body (17) of the guide (12) is smaller than the inner diameter of the motor. The guide (12) has an axial through hole at one end near the base (13) of the tooling (11). The positioning rod (15) passes through the through hole so that the guide (12) is sleeved on the positioning rod (15). The motor passes through the guide (12) so that one end face of the motor abuts against one end face of the housing (14). The outer diameter of the retractable part (18) is smaller than the outer diameter of the main body (17) so that a receiving space (19) is formed below the main body (17). The receiving space (19) is used to receive the lead wire (26) of the motor.

2. The motor mounting guide device as described in claim 1, characterized in that, The guide (12) also includes a spherical top (16), the top (16), the main body (17) and the contraction part (18) are connected in sequence, and the first distance between the top (16) and the base (13) of the tooling (11) is greater than the second distance between the contraction part (18) and the base (13) of the tooling (11).

3. The motor mounting guide device as described in claim 1, characterized in that, The through hole includes a first through hole (20) located in the main body (17) and a second through hole (21) located in the contraction part (18). The first through hole (20) and the second through hole (21) are connected. The inner diameter of the first through hole (20) is smaller than the outer diameter of the positioning rod (15), and the outer diameter of the positioning rod (15) is smaller than or equal to the inner diameter of the second through hole (21).

4. The motor mounting guide device as described in claim 1, characterized in that, The length of the contraction section (18) along the axial direction is equal to the outer diameter of the contraction section (18).

5. The motor mounting guide device as described in claim 1, characterized in that, The tooling (11) also includes a pump body positioning seat (22), which is connected to the positioning rod (15) and the base (13) respectively. The outer diameter of the pump body positioning seat (22) is larger than the outer diameter of the positioning rod (15).

6. The motor mounting guide device as described in claim 3, characterized in that, The inner diameter of the second through hole (21) is larger than the inner diameter of the first through hole (20), so that the bottom wall of the main body (17) forms a protruding shoulder (25) at the connection between the first through hole (20) and the second through hole (21). The protruding shoulder (25) abuts against the positioning rod (15) so that the positioning rod (15) supports the guide (12).

7. The motor mounting guide device as described in claim 1, characterized in that, The outer peripheral surface of the motor is provided with spaced sliding grooves, and the upper end surface of the housing (14) of the tooling (11) is provided with spaced positioning posts (23). The positioning posts (23) slide in the sliding grooves to achieve positioning of the outer peripheral surface of the motor.

8. The motor mounting guide device as described in claim 1, characterized in that, The outer periphery of the guide member (12) is provided with a recess (24) for clamping the guide member (12).

9. A method for installing a motor, characterized in that, The method of installing a motor using the motor mounting guide device as described in any one of claims 1-8 includes the following steps: Set and secure the tooling for assembling the compressor; The guide component is fitted onto the positioning rod in the tooling to achieve the assembly of the guide component; The motor is guided and installed using the guide member, the motor passes through the guide member, and the motor abuts against the housing of the tooling to complete the installation of the motor; Clamp and remove the guide member.

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