A motor phase ring component

Abstract

The utility model discloses a motor phase ring assembly, comprising a phase ring body made of insulating material, wherein a first conductive sheet, a second conductive sheet and a third conductive sheet are embedded and fixed in the phase ring body, a plurality of metal hooks are respectively arranged on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a first conductive rod, a second conductive rod and a third conductive rod for connecting with a PCBA board are also respectively arranged on the first conductive sheet, the second conductive sheet and the third conductive sheet, a matching avoidance hole matching with a connecting protrusion on a central hole of a stator core is arranged on the phase ring body, and a clamping structure matching with an inner wall of the central hole of the stator core is arranged on the periphery of the phase ring body. The motor phase ring assembly has a simpler structure, is more convenient to be fixed with the stator core, saves parts and reduces costs.

Description

Technical Field

[0001] The utility model relates to the field of motors, in particular to a motor phase ring component. Background Art

[0002] The motor is a commonly used power device used in various industries, and Patent Publication No. 202111286404.8 discloses an outer rotor motor for driving an automobile cooling fan, including an intermediate phase ring, on which three metal hooks are evenly mounted, each of which is provided with two harness hooks and one connecting hook. The phase ring of the outer rotor motor will have the following defects during use: 1. The molding of this phase ring is relatively complicated, and several insertion pins need to be molded on the phase ring, especially the insertion pins need to be provided with inverted teeth, and the insertion pins need to be accurately inserted. 1. It fits tightly into the hole of the stator core, and the assembly resistance is relatively large, so the overall phase ring is difficult to form; 2. A metal hook needs to be inserted into the intermediate phase ring. When installing the metal hook, the metal hook is provided with an embedded pin. Therefore, the intermediate phase ring needs to be provided with a corresponding embedded hole to accommodate the embedded pin, which greatly increases the precision required for manufacturing the intermediate phase ring; 3. After the wiring harness clamp is welded, it is also necessary to conduct electricity through a conductive connecting rod. The installation of the conductive connecting rod also requires a conductive bracket to connect the conductive connecting rod to the PCBA board. The overall parts are relatively large and the assembly process is more complicated. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a motor phase ring component, which has a simpler structure, is more convenient to be fixed to the stator core, saves parts and reduces costs.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a motor phase ring assembly, including a phase ring body made of insulating material, a first conductive sheet, a second conductive sheet and a third conductive sheet are embedded and fixed in the phase ring body, a plurality of metal protective hooks are respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a first conductive rod, a second conductive rod and a third conductive rod for connecting to the PCBA board are also respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, a matching avoidance hole matching with the connecting protrusion on the center hole of the stator core is provided on the phase ring body, and a clamping structure matching with the inner wall of the center hole of the stator core is provided on the outer periphery of the phase ring body.

[0005] As a preferred solution, the clamping structure includes a plurality of axially extending clamping protrusions arranged on the outer periphery of the phase ring body, and the ends of the clamping protrusions are provided with guiding inclined surfaces for facilitating insertion into the center hole of the stator core.

[0006] As a preferred solution, the end of the phase ring body is also provided with an end positioning flange edge which is positioned and matched with the end of the stator core.

[0007] As a preferred solution, a U-shaped matching hole wall is provided on the phase ring body, and the matching hole wall encloses a matching avoidance hole that is adapted to the shape of the connecting protrusion on the stator core. A positioning notch is provided on the matching hole wall, and correspondingly, a positioning protrusion that is inserted into the positioning notch is provided on the connecting protrusion.

[0008] As a preferred solution, three axially protruding sealing columns are also provided on the phase ring body, and the first conductive rod, the second conductive rod and the third conductive rod axially penetrate the sealing columns one by one, and each sealing column is provided with an insertion groove for convenient insertion of the sealing plug.

[0009] As a preferred solution, the phase ring body is also provided with hollow holes for partially exposing the first conductive sheet, the second conductive sheet and the third conductive sheet, the position of the metal guard hook corresponds to the hollow hole, and the first conductive sheet, the second conductive sheet and the third conductive sheet are provided with spot welding protrusions corresponding to the one-to-one positions of the metal guard hooks.

[0010] As a preferred solution, a plurality of reinforcing ribs spanning the hollow holes are further provided on the phase ring body, and the first conductive sheet, the second conductive sheet and the third conductive sheet respectively pass through the reinforcing ribs, and the first conductive sheet, the second conductive sheet and the third conductive sheet are provided with connecting accommodating holes corresponding to the reinforcing ribs.

[0011] As a preferred solution, an avoidance gap communicating with the hollow hole is further provided on the outer side of the metal protective hook on the phase ring body.

[0012] As a preferred solution, the outer periphery of the phase ring body is also provided with a positioning and anti-deviation structure which is positioned and matched with the central hole of the stator core.

[0013] As a preferred solution, the positioning and anti-deviation structure includes a positioning protrusion arranged on the inner wall of the center hole of the stator core, and correspondingly, a positioning groove cooperating with the positioning protrusion is arranged on the outer periphery of the phase ring body.

[0014] After adopting the above technical scheme, the effect of the utility model is as follows: due to a motor phase ring component, including a phase ring body made of insulating material, a first conductive sheet, a second conductive sheet and a third conductive sheet are embedded and fixed in the phase ring body, a plurality of metal hooks are respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a first conductive rod, a second conductive rod and a third conductive rod for connecting with a PCBA board are also respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a matching connecting rod that matches with a connecting protrusion on a central hole of a stator core is provided on the phase ring body. Avoidance hole, the outer periphery of the phase ring body is provided with a clamping structure that is clamped and matched with the inner wall of the center hole of the stator core. First, the first conductive rod, the second conductive rod and the third conductive rod of the phase ring assembly are directly connected to the first conductive sheet, the second conductive sheet and the third conductive sheet, which is convenient for direct connection with the PCBA board, so that the assembly steps can be omitted and the number of parts can be saved; secondly, the phase ring assembly is directly clamped on the inner wall of the center hole of the stator core through the outer periphery of the clamping mechanism, so that the phase ring assembly does not need to form an insertion pin with inverted teeth, and the molding is simpler, and it is also easier to clamp and assemble. Therefore, the motor phase ring assembly can directly quickly connect the stator winding and the PCBA board, omitting parts, and the installation is also simpler and more convenient.

[0015] Furthermore, since the clamping structure includes a plurality of axially extending clamping protrusions arranged on the outer periphery of the phase ring body, the ends of the clamping protrusions are provided with guiding inclined surfaces for convenient insertion into the center hole of the stator core. Therefore, the guiding inclined surfaces can play a guiding role when the phase ring body is inserted, and the insertion is more convenient with less resistance.

[0016] Furthermore, since the end of the phase ring body is also provided with an end positioning flange edge for positioning and matching with the end of the stator core, the end positioning flange edge can be used to position with the end of the stator core, thereby ensuring that it is clamped in place.

[0017] Furthermore, since the phase ring body is provided with a U-shaped matching hole wall, the matching hole wall encloses a matching avoidance hole that is adapted to the shape of the connecting protrusion on the stator core, and a positioning notch is provided on the matching hole wall, and correspondingly, a positioning protrusion that is inserted into the positioning notch is provided on the connecting protrusion. Therefore, when the phase ring body is inserted into the center hole of the stator core, the clamping protrusion on the connecting protrusion of the stator core will also be inserted into the positioning notch, so that the axial position can be further limited. Of course, the installation angle positioning can be achieved by optimizing the number of positioning notches, wherein at least one matching avoidance hole has no positioning notch on its matching hole wall, so that when the phase ring assembly is installed, it can be inserted at a set angle, so that the positions of the first conductive rod, the second conductive rod and the third conductive rod can be ensured to be accurate, and misalignment between the stator core and the phase ring can be avoided.

[0018] Furthermore, since three axially protruding sealing columns are also provided on the phase ring body, the first conductive rod, the second conductive rod and the third conductive rod axially penetrate the sealing columns one by one, and each sealing column is provided with an insertion groove for convenient insertion of the sealing plug. In this way, the sealing column will be squeezed in the insertion groove, thereby better sealing the first conductive rod, the second conductive rod and the third conductive rod.

[0019] Furthermore, since the phase ring body is also provided with hollow holes for partially exposing the first conductive sheet, the second conductive sheet and the third conductive sheet, the position of the metal hook is corresponding to the hollow hole, and the first conductive sheet, the second conductive sheet and the third conductive sheet are provided with spot welding protrusions corresponding to the one-to-one positions of the metal hooks. This can not only reduce the overall weight of the phase ring body and save materials, but also make the spot welding of the metal hook and the wiring harness more reliable, thereby ensuring the quality of welding.

[0020] Furthermore, since the phase ring body is also provided with a plurality of reinforcing ribs spanning the hollow holes, the first conductive sheet, the second conductive sheet and the third conductive sheet respectively penetrate the reinforcing ribs, and the first conductive sheet, the second conductive sheet and the third conductive sheet are provided with connecting and accommodating holes corresponding to the reinforcing ribs, the strength of the phase ring body can be improved by using the reinforcing ribs.

[0021] Furthermore, since an avoidance notch connected to the hollow hole is provided on the outer side of the metal guard hook on the phase ring body, the avoidance notch can increase the distance between the metal guard hook and the plastic of the phase ring body, thereby preventing the plastic from melting due to excessive temperature of the metal guard hook during upper and lower spot welding, and facilitating rough positioning of the conductive sheet during injection molding of the phase ring to avoid tilting of the metal guard hook.

[0022] Furthermore, the outer periphery of the phase ring body is also provided with a positioning and anti-deviation structure that is positioned and matched with the center hole of the stator core. The positioning and anti-deviation structure includes a positioning protrusion provided on the inner wall of the center hole of the stator core, and correspondingly, the outer periphery of the phase ring body is provided with a positioning groove that matches with the positioning protrusion. This makes it convenient to position the phase ring body when it is clamped, and the positioning protrusion and the positioning groove cooperate with each other, so that positioning and anti-deviation can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] Figure 1 It is a structural stereogram of an embodiment of the utility model;

[0025] Figure 2 It is a three-dimensional diagram of another angle of the embodiment of the utility model;

[0026] Figure 3 It is a front schematic diagram of an embodiment of the utility model;

[0027] Figure 4 It is a three-dimensional image with the phase ring body hidden;

[0028] In the attached drawings: 1, phase ring body; 2, first conductive sheet; 3, second conductive sheet; 4, third conductive sheet; 5, metal hook; 6, matching avoidance hole; 61, positioning notch; 7, clamping protrusion; 71, guide slope; 8, positioning groove; 9, hollow hole; 10, reinforcing rib plate; 11, sealing column; 111, plugged into the sink; 12, first conductive rod; 13, second conductive rod; 14, third conductive rod; 15, connection accommodating hole; 16, end positioning flange edge; 17, avoidance notch; 18, spot welding protrusion. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below through specific embodiments.

[0030] like Figures 1 to 4 As shown, a motor phase ring assembly includes a phase ring body 1 made of insulating material, generally the phase ring body 1 is made of plastic, a first conductive sheet 2, a second conductive sheet 3 and a third conductive sheet 4 are embedded and fixed in the phase ring body 1, and a plurality of metal hooks 5 are respectively provided on the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4, and the metal hooks 5 are used to facilitate the clamping and welding fixation of the stator winding after winding. The first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4 are also provided with toothed rods embedded in the phase ring body 1 to provide a pulling force, and the above three conductive sheets are all embedded during the injection molding of the phase ring body 1.

[0031] The first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4 are respectively provided with a first conductive rod 12, a second conductive rod 13 and a third conductive rod 14 for connecting to the PCBA board, the phase ring body 1 is provided with a matching avoidance hole 6 that matches with the connecting protrusion on the center hole of the stator core, and the outer periphery of the phase ring body 1 is provided with a clamping structure that is clamped and matched with the inner wall of the center hole of the stator core.

[0032] In this embodiment, the clamping structure includes a plurality of axially extending clamping protrusions 7 arranged on the outer periphery of the phase ring body 1, and the ends of the clamping protrusions 7 are provided with guiding inclined surfaces 71 for facilitating insertion into the central hole of the stator core.

[0033] The end of the phase ring body 1 is also provided with an end positioning flange 16 for positioning the end of the stator core. When the phase ring body 1 is inserted into the center hole, the end positioning flange 16 will contact the end of the stator core, thus completing the axial positioning.

[0034] like Figure 1As shown, in this embodiment, a U-shaped matching hole wall is provided on the phase ring body 1, and the matching hole wall encloses a matching avoidance hole 6 that is adapted to the shape of the connecting protrusion on the stator core, and a positioning notch 61 is provided on the matching hole wall. Correspondingly, a positioning protrusion that is inserted into the positioning notch 61 is provided on the connecting protrusion. When the positioning protrusion is inserted into the positioning notch 61, the positioning protrusion and the end positioning flange along 16 can jointly constrain the two axial directions to ensure that the clamping position of the phase ring body 1 is accurate. Of course, in this embodiment, the number of matching avoidance holes 6 is 3, and the number of corresponding connecting protrusions on the stator core is also 3. Among them, positioning notches 61 are provided on the matching hole walls of two matching avoidance holes 6, and no positioning notch 61 is provided on the other matching hole wall. In this way, the phase ring assembly can only be assembled according to one placement state, which can avoid misalignment between the phase ring body 1 and the stator core, thereby ensuring accurate assembly between the phase ring body 1 and the PCBA board.

[0035] In this embodiment, three axially protruding sealing columns 11 are further provided on the phase ring body 1, and the first conductive rod 12, the second conductive rod 13 and the third conductive rod 14 axially penetrate the sealing columns 11 one by one, and each sealing column 11 is provided with an insertion groove 111 for convenient insertion of a sealing plug, and the bottom of the insertion groove 111 is conical, and the first conductive rod 12, the second conductive rod 13 and the third conductive rod 14 are respectively covered with sealing plugs. After the sealing plugs are inserted into the groove 111, they will be squeezed between the heat dissipation base of the motor and the phase ring body 1, so that the sealing plugs will be deformed to further improve the sealing effect.

[0036] The phase ring body 1 is also provided with a hollow hole 9 for facilitating partial exposure of the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4. The position of the metal hook 5 corresponds to the hollow hole 9, and the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4 are provided with spot welding protrusions 18 corresponding to the positions of the metal hook 5. The phase ring body 1 is also provided with a plurality of reinforcing ribs 10 spanning the hollow hole 9, and the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4 respectively penetrate the reinforcing ribs 10, and the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4 are provided with connection accommodating holes 15 corresponding to the reinforcing ribs 10. The phase ring body 1 is also molded with the reinforcing ribs 10 during injection molding, and due to the existence of the connection accommodating holes 15, plastic is also poured into the connection accommodating holes 15 to become a part of the reinforcing ribs 10, which can not only ensure the strength of the phase ring body 1, but also further fix the first conductive sheet 2, the second conductive sheet 3 and the third conductive sheet 4. The phase ring body 1 is provided with an avoidance notch 17 connected to the hollow hole 9 on the outer side of the metal hook 5, so as to increase the distance between the metal hook 5 and the phase ring body 1 and avoid the phase ring body 1 made of plastic material from becoming too hot during welding and causing the color to turn black or melt.

[0037] The outer periphery of the phase ring body 1 is also provided with a positioning anti-deviation structure that is positioned and matched with the center hole of the stator core. The positioning anti-deviation structure includes a positioning protrusion arranged on the inner wall of the center hole of the stator core, and correspondingly, the outer periphery of the phase ring body 1 is provided with a positioning groove 8 that matches the positioning protrusion. Of course, the positioning groove 8 can also be provided on the inner wall of the center hole of the stator core, and the positioning protrusion can also be provided on the phase ring body 1.

[0038] The phase ring assembly in this embodiment is easier to install, and the conductive connecting rod is omitted, so there are fewer parts and components and it is more convenient to form.

[0039] The above-described embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Various modifications and alterations to the technical solution of the present invention, without departing from the design spirit of the present invention, should fall within the scope of protection defined in the claims of the present invention.

Claims

1. A motor phase ring assembly, comprising a phase ring body made of insulating material, characterized in that: The first conductive sheet, the second conductive sheet and the third conductive sheet are embedded and fixed in the phase ring body, and a plurality of metal hooks are respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a first conductive rod, a second conductive rod and a third conductive rod for connecting with the PCBA board are also respectively provided on the first conductive sheet, the second conductive sheet and the third conductive sheet, and a matching avoidance hole matching with the connecting protrusion on the center hole of the stator core is provided on the phase ring body, and a clamping structure matching with the inner wall of the center hole of the stator core is provided on the outer periphery of the phase ring body.

2. A motor phase ring assembly as claimed in claim 1, characterized in that: The clamping structure comprises a plurality of axially extending clamping protrusions arranged on the outer periphery of the phase ring body, and the ends of the clamping protrusions are provided with guiding inclined surfaces for convenient insertion into the central hole of the stator core.

3. A motor phase ring assembly as claimed in claim 2, characterized in that: The end of the phase ring body is also provided with an end positioning flange edge which is positioned and matched with the end of the stator core.

4. A motor phase ring assembly as claimed in claim 1, characterized in that: The phase ring body is provided with a U-shaped matching hole wall, and the matching hole wall encloses a matching avoidance hole adapted to the shape of the connecting protrusion on the stator core. The matching hole wall is provided with a positioning notch, and correspondingly, the connecting protrusion is provided with a positioning protrusion that is inserted into the positioning notch.

5. A motor phase ring assembly as claimed in claim 1, characterized in that: The phase ring body is also provided with three axially protruding sealing columns, the first conductive rod, the second conductive rod and the third conductive rod axially penetrate the sealing columns one by one, and each sealing column is provided with an insertion groove for convenient insertion of a sealing plug.

6. A motor phase ring assembly as claimed in claim 1, characterized in that: The phase ring body is also provided with hollow holes for partially exposing the first conductive sheet, the second conductive sheet and the third conductive sheet. The positions of the metal hooks correspond to the hollow holes. The first conductive sheet, the second conductive sheet and the third conductive sheet are provided with spot welding protrusions corresponding to the positions of the metal hooks.

7. A motor phase ring assembly as claimed in claim 6, characterized in that: The phase ring body is also provided with a plurality of reinforcing ribs spanning the hollow holes, and the first conductive sheet, the second conductive sheet and the third conductive sheet respectively penetrate the reinforcing ribs, and the first conductive sheet, the second conductive sheet and the third conductive sheet are provided with connection accommodating holes corresponding to the reinforcing ribs.

8. A motor phase ring assembly as claimed in claim 7, characterized in that: An avoidance gap communicating with the hollow hole is also arranged on the outer side of the metal protective hook on the phase ring body.

9. A motor phase ring assembly as claimed in claim 1, characterized in that: The outer periphery of the phase ring body is also provided with a positioning and anti-deviation structure which is positioned and matched with the central hole of the stator core.

10. A motor phase ring assembly as claimed in claim 9, characterized in that: The positioning and anti-deviation structure comprises a positioning protrusion arranged on the inner wall of the central hole of the stator core, and correspondingly, a positioning groove cooperating with the positioning protrusion is arranged on the outer periphery of the phase ring body.

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