Novel mounting structure of rotary transformer

Abstract

The utility model discloses a novel rotary transformer installation structure which comprises an end cover body, the center of the bottom face of the end cover body is connected with a clamping jaw assembly through a screw, a rotary transformer is clamped in the clamping jaw assembly, and the clamping jaw assembly comprises an attaching portion matched with the inner wall of the end cover body. A hook-shaped clamping jaw is formed on the outer edge of the attaching part and is hooked on the end face of the rotary transformer, a plurality of first clamping plates are further formed on the end cover body, and the multiple first clamping plates are distributed in a circumferential mode, located on the outer side of the rotary transformer and used for clamping the surface of the rotary transformer. A step is formed on the end face of the first clamping plate and supports the rotary transformer, the rotary transformer is clamped in the clamping jaw assembly, the clamping jaw assembly is connected to the end cover body through the screws, a connecting column is not needed on the end cover body any more, thermal stress concentration of forming of the end cover body is reduced, and the forming efficiency of the rotary transformer is improved. And the yield of the end cover is improved.

Description

A novel mounting structure for rotary transformers Technical Field

[0001] This utility model relates to the field of end cover technology for rotary transformers, specifically a novel mounting structure for rotary transformers. Background Technology

[0002] Existing resolver motors typically connect the resolver and the motor end cover together. The resolver is screwed to the motor end cover, requiring the motor end cover to have connecting posts corresponding to the screws, as shown in Figure 1. However, the height and wall thickness of the connecting posts cause uneven heat dissipation during the motor end cover molding process, making it prone to defects such as cracking due to thermal stress, leading to difficulties in motor end cover production. Therefore, to improve the end cover molding process, a new type of resolver mounting structure was designed. This structure integrates the resolver onto the motor end cover using a clamp assembly, avoiding the need for connecting posts on the motor end cover, thus enabling more uniform heat dissipation and reducing the concentration of thermal stress. Summary of the Invention

[0003] The purpose of this utility model is to provide a novel mounting structure for a rotary transformer. By connecting a clamping assembly to the end cover body, the rotary transformer is integrated onto the end cover body using the clamping assembly. By mounting the end cover body to the motor, the rotary transformer is also installed inside the motor. This avoids the need for forming connecting columns on the motor end cover, resulting in more uniform heat dissipation of the improved end cover, reducing the concentration of thermal stress, simplifying the manufacturing process, and improving the yield rate of the motor end cover.

[0004] This utility model provides the following technical solution: a novel mounting structure for a rotary transformer, comprising an end cover body, wherein a clamping claw assembly is connected to the center of the bottom surface of the end cover body by screws, the clamping claw assembly holds the rotary transformer, the clamping claw assembly includes a fitting part that matches the inner wall of the end cover body, and a claw is formed on the outer edge of the fitting part, the claw being hook-shaped and hooking onto the end face of the rotary transformer, and a plurality of first clamping plates are also formed on the end cover body, the plurality of first clamping plates being circumferentially distributed and all located on the outside of the rotary transformer, clamping the surface of the rotary transformer, and a step is formed on the end face of the first clamping plate, the step supporting the rotary transformer.

[0005] Furthermore, a support rib is formed on the inner wall of the fitting part, and the support rib is on one side of the claw to further support the rotary transformer and position its installation height.

[0006] Furthermore, a support plate is formed on the outer side of the claw, and a pad is formed on the end cap body. After the claw assembly is installed, the support plate presses on the pad, and the positioning of the support plate by the pad enables the positioning of the claw assembly's installation angle and installation height.

[0007] Furthermore, a PIN pin socket is inserted and fixed on the bottom surface of the end cover body. One end of the PIN pin socket is a PIN pin positioning groove located on the bottom surface of the end cover body, and the other end is a PIN pin connection port located on the other side of the end cover body. A PIN pin mounting base is formed on the rotary transformer, and a PIN pin is soldered on the PIN pin mounting base. The PIN pin is inserted into the PIN pin positioning groove. Through the PIN pin socket, the PIN pin of the rotary transformer is inserted into the motor end cover, which facilitates the connection between the socket and the PIN pin on the motor end cover.

[0008] Furthermore, a second clamping plate is also formed on the end cap body. The second clamping plate is formed on both sides of the PIN positioning groove. The second clamping plate clamps the two sides of the PIN mounting seat, thereby further enhancing the connection strength and stability between the end cap body and the rotary transformer.

[0009] Furthermore, two positioning posts are formed at the center of the fitting part, and a bent plate is fitted on the positioning posts. The bent plate is connected to the center of the fitting part by screws, and the two positioning posts position the bent plate.

[0010] Furthermore, a claw positioning groove and a claw slot are formed on the center of the end cap body, and an insertion post is formed on the other end face of the fitting part. The insertion post is inserted into the claw positioning groove, and the claw slot is threadedly connected to a screw. The claw positioning groove and the insertion post are used to position and prevent the claw assembly from being installed incorrectly, thus avoiding errors in the installation angle of the claw assembly.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] (1) By connecting the clamping assembly to the end cover body, the rotary transformer is pressed onto the end cover body by the clamping assembly. Compared with the existing rotary transformer installation method, it is no longer necessary to form connecting columns on the motor end cover, which avoids the thermal stress concentration of the motor end cover during the forming process, simplifies the production process, and improves the yield of the motor end cover.

[0013] (2) A first clamping plate is formed on the end cover body. The first clamping plate clamps the outer end face of the rotary transformer. A claw is formed on the claw assembly. The claw clamps the end face of the rotary transformer and fixes the rotary transformer, thereby improving the connection strength between the rotary transformer and the end cover body. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 shows the existing mounting structure of the rotary transformer and motor end cover;

[0016] Figure 2 is a perspective view of the overall structure of this utility model;

[0017] Figure 3 is a perspective view of the exploded structure of this utility model;

[0018] Figure 4 is a front view of the exploded structure of this utility model;

[0019] Figure 5 is a top view of the end cap body of this utility model;

[0020] In the diagram: 1. End cap body; 11. PIN socket; 111. PIN positioning groove; 112. PIN insertion port; 12. First clamping plate; 13. Second clamping plate; 14. Pad; 15. Claw slot; 16. PIN insertion hole; 17. Claw positioning groove; 2. Claw assembly; 21. Claw; 211. Support plate; 212. Support rib; 22. Screw; 23. Fitting part; 24. Positioning post; 25. Bending plate; 26. Insertion post; 3. Rotary transformer; 31. PIN pin; 32. PIN pin mounting base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 2 to 5. This utility model provides the following technical solution: a novel mounting structure for a rotary transformer, including an end cover body 1. A clamping assembly 2 is connected to the center of the bottom surface of the end cover body 1 via screws 22. The clamping assembly 2 holds the rotary transformer 3. The clamping assembly 2 includes a fitting portion 23 that matches the inner wall of the end cover body 1. A claw 21 is formed on the outer edge of the fitting portion 23. The claw 21 is hook-shaped and hooks onto the end face of the rotary transformer 3. Four first clamping plates 12 are also formed on the end cover body 1. The multiple first clamping plates 12 are circumferentially distributed and all located on the outside of the rotary transformer 3. After the rotary transformer 3 is installed, the first clamping plates 12 clamp the surface of the rotary transformer 3, further enhancing its strength. The connection strength between the end cover body 1 and the rotary transformer 3 is improved, ensuring the stability of the connection and reducing the movement of the rotary transformer 3. The end face of the first clamping plate 12 is formed with a step, which supports the rotary transformer 3 and further limits one end of the rotary transformer 3. The upper and lower end faces of the rotary transformer 3 are fixed by using the claw 21 and the step of the first clamping plate 12. The first clamping plate 12 can also clamp the outer surface of the rotary transformer 3 to fix the rotary transformer 3. Compared with the existing rotary transformer 3 connected by threads, the connecting columns formed on the motor end cover 1 are reduced, so that the heat dissipation is more uniform when the motor end cover is formed, reducing thermal stress, simplifying the process, and improving the yield of the motor end cover.

[0023] The inner wall of the fitting part 23 is also formed with a support rib 212. The support rib 212 is on one side of the claw 21 and is used to support the rotary transformer 3 and position the installation height of the rotary transformer 3.

[0024] Support plates 211 are formed on the outer sides of the two claws 21, and pads 14 are formed on the end cap body 1. After the claw assembly 2 is installed, the support plates 211 press on the pads 14. The pads 14 are used to position the support plates 211, which not only positions the installation angle of the claw assembly 2, but also positions the installation height of the claw assembly 2, thus ensuring the installation position of the claw assembly 2.

[0025] A PIN pin socket 11 is fixedly inserted into the bottom surface of the end cover body 1. The PIN pin socket 11 has 6 PIN pin holes 16 for inserting PIN pins 31. The two ends of the PIN pin socket 11 are located on the two end faces of the end cover body 1. One end of the PIN pin socket 11 is a PIN pin positioning groove 111 located on the bottom surface of the end cover body 1. The PIN pin positioning groove 111 is used to connect with the PIN pin 31 of the rotary transformer 3. The other end is a PIN pin connection socket 112 located on the other side of the end cover body 1. The PIN pin connection socket 112 is used to connect a connector, so that the PIN pin 31 is connected and conductive with the connector. A PIN pin mounting base 32 is formed on the rotary transformer 3. PIN pins 31 are soldered on the PIN pin mounting base 32 and inserted into the PIN pin positioning groove 111.

[0026] As shown in Figure 3, a second clamping plate 13 is also formed on the end cap body 1. The second clamping plate 13 is formed on both sides of the PIN pin positioning groove 111. The second clamping plate 13 clamps the two sides of the PIN pin mounting seat 32, which enhances the pressure of the second clamping plate 13 on the PIN pin mounting seat 32 and ensures the connection stability between the PIN pin 31 and the PIN pin positioning groove 111.

[0027] As shown in Figure 4, two positioning posts 24 are formed on the center of the fitting part 23. A bending plate 25 is fitted on the positioning posts 24. The two positioning posts 24 limit the bending plate 25 so that the bending plate 25 cannot rotate. The bending plate 25 is connected to the center of the fitting part 23 by screws 22. At the same time, the screws 22 fix the claw assembly 2 to the end cap body 1.

[0028] As shown in Figures 4 and 5, a claw positioning groove 17 and a claw slot 15 are formed on the center of the end cap body 1. An insertion post 26 is formed on the other end face of the fitting part 23. The insertion post 26 is inserted into the claw positioning groove 17 to position the claw assembly 2. The claw positioning groove 17 is designed to prevent incorrect installation of the claw assembly 2. The claw slot 15 is threadedly connected to the screw 22 to fix the claw assembly 2 on the end cap body 1.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel mounting structure for a rotary transformer, comprising an end cover body, characterized in that: A clamping assembly is connected to the center of the bottom surface of the end cap body by screws. The clamping assembly holds a rotary transformer. The clamping assembly includes a fitting part that matches the inner wall of the end cap body. A claw is formed on the outer edge of the fitting part. The claw is hook-shaped and hooks onto the end face of the rotary transformer. A plurality of first clamping plates are also formed on the end cap body. The plurality of first clamping plates are circumferentially distributed and are all located on the outside of the rotary transformer, clamping the surface of the rotary transformer. A step is formed on the end face of the first clamping plate, and the step supports the rotary transformer.

2. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: The inner wall of the fitting part is also formed with a support rib, which is on one side of the claw and is used to support the rotary transformer.

3. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: A support plate is formed on the outer side of the claw, and a pad is formed on the end cap body. After the claw assembly is installed, the support plate presses on the pad.

4. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: A PIN pin socket is inserted and fixed on the bottom surface of the end cover body. One end of the PIN pin socket is a PIN pin positioning groove located on the bottom surface of the end cover body, and the other end is a PIN pin insertion port located on the other side of the end cover body. A PIN pin mounting base is formed on the rotary transformer. A PIN pin is soldered on the PIN pin mounting base and the PIN pin is inserted into the PIN pin positioning groove.

5. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: The end cap body is also formed with a second clamping plate, which is formed on both sides of the PIN pin positioning groove and clamps the PIN pin mounting base on both sides.

6. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: Two positioning posts are formed at the center of the bonding part, and a bending plate is fitted on the positioning posts. The bending plate is connected to the center of the bonding part by screws.

7. The mounting structure of a novel rotary transformer according to claim 1, characterized in that: The end cap body has a claw positioning groove and a claw slot formed at its center. The other end face of the fitting part has an insertion post formed thereon. The insertion post is inserted into the claw positioning groove, and the claw slot is threadedly connected to a screw.

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