Novel motor shell structure

Abstract

The utility model discloses a novel motor housing structure comprising a stator housing and a brush holder rear cover assembly which are connected in a buckling manner. A positioning guide wire is vertically arranged on the peripheral side of the brush carrier rear cover assembly, a positioning limiting groove is formed in the lower end of the inner side of the brush carrier rear cover assembly, the positioning limiting groove corresponds to the positioning guide wire in position, and a positioning mounting groove is formed in the upper end of the inner side of the stator shell and corresponds to the positioning limiting groove in position. According to the novel motor housing structure provided by the utility model, when the stator housing and the brush carrier rear cover assembly are assembled, the insertion connection of the positioning limiting groove and the positioning limiting block is guided through the positioning guide line, and the assembly positioning of the stator housing and the brush carrier rear cover assembly is realized through the insertion connection of the positioning limiting groove and the positioning limiting block. Therefore, through the designed positioning mode, the stability of motor performance output is greatly improved, and the problem of assembly deviation caused by visual assembly is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a novel motor housing structure. Background Art

[0002] At present, in the manufacturing process of the electric motor industry, most of them mark the outer surface of the stator and the brush holder end cover, and visually check the marking lines to ensure the accuracy of the installation position of the parts during installation.

[0003] Since visual inspection may cause installation deviation, for this type of motor, when the installation deviation between the brush holder back cover and the stator exceeds 1.5°, the output efficiency of the motor may be reduced by 3-5%. Therefore, accurate positioning and installation can ensure the consistency of the motor's output performance. It can be seen that during installation, the visual positioning line alignment method will have a great impact on the consistency of the output performance of the whole machine due to visual deviation. To this end, this application proposes a new motor housing structure to provide a new technical solution to solve the technical problems mentioned above. Utility Model Content

[0004] Based on this, it is necessary to provide a new motor housing structure to address the above-mentioned technical problems. When the stator housing and the brush holder rear cover assembly are assembled, the positioning guide line is used to guide the insertion of the positioning limit groove and the positioning limit block. The assembly positioning of the stator housing and the brush holder rear cover assembly is achieved through the insertion of the positioning limit groove and the positioning limit block. The positioning method of this design greatly improves the stability of the motor performance output and avoids the assembly deviation problem caused by visual assembly.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A novel motor housing structure is used for motor housing assembly.

[0007] The novel motor housing structure specifically comprises:

[0008] A stator casing and a brush holder rear cover assembly, wherein the stator casing and the brush holder rear cover assembly are snap-fitted and connected; a positioning guide line is vertically arranged on the circumferential side of the brush holder rear cover assembly, a positioning limit groove is provided at the inner lower end of the brush holder rear cover assembly, and the positioning limit groove corresponds to the position of the positioning guide line; a positioning installation groove is provided at the inner upper end of the stator casing and at a position corresponding to the positioning limit groove; a positioning limit block is fixedly connected to the inner side of the stator casing and at a position located at the lower part of the positioning installation groove, and the positioning limit block is vertically plug-connected to the positioning limit groove.

[0009] As a preferred embodiment of the novel motor housing structure provided by the utility model, it also includes a guide frame body, the guide frame includes a fixed ring frame one and a fixed ring frame two, the fixed ring frame is set on the outer side of the stator housing, the fixed ring frame one is detachably fixed to the stator housing through a fixing piece, the fixed ring frame two is set on the outer side of the brush holder rear cover assembly, the upper end of the fixed ring frame one is vertically fixedly connected with a guide plug rod, the fixed ring frame two is provided with a guide socket, the guide socket corresponds to the position of the guide plug rod, the guide plug rod is vertically plug-connected with the guide socket, a positioning groove is provided on the inner side of the fixed ring frame two and at a position corresponding to the positioning guide line, the positioning guide line is located on the inner side of the positioning groove, and the positioning groove is vertically plug-connected with the positioning guide line.

[0010] As a preferred embodiment of the novel motor housing structure provided by the utility model, there are multiple guide rods, the multiple guide rods are arranged in a circular array, and the number of the guide holes is the same as the number of the guide rods.

[0011] As a preferred embodiment of the novel motor housing structure provided by the utility model, an anti-slip ring is fixedly connected to the inner side of the second fixed ring frame, and a groove is formed at a position corresponding to the positioning groove of the anti-slip ring.

[0012] As a preferred embodiment of the novel motor housing structure provided by the utility model, the fixing member includes a fixing screw, a screw hole one is opened on the circumference of the fixing ring frame one, and the fixing screw is threadedly connected to the screw hole one.

[0013] As a preferred embodiment of the novel motor housing structure provided by the utility model, the fixing member includes a fixing bolt, a screw hole 2 is opened on the circumference of the fixing ring frame 1, and the fixing bolt is threadedly connected with the screw hole 2.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The novel motor housing structure provided by the utility model guides the plugging of the positioning limit groove and the positioning limit block through the positioning guide line when the stator housing and the brush holder rear cover assembly are assembled, and the assembly positioning of the stator housing and the brush holder rear cover assembly is realized through the plugging of the positioning limit groove and the positioning limit block. Therefore, the stability of the motor performance output is greatly improved through the positioning method of this design, and the assembly deviation problem caused by visual assembly is avoided.

[0016] The novel motor housing structure provided by the utility model, through the structural coordination design of the guide frame body, can achieve guidance during the assembly process of the stator housing and the brush holder rear cover assembly through the coordination of the fixed ring frame one, the guide plug rod and the fixed ring frame two, thereby making the assembly of the stator housing and the brush holder rear cover assembly more convenient and effectively improving the assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 The overall structural diagram of the novel motor housing structure provided by the utility model;

[0019] Figure 2 A schematic diagram of the structural position of the positioning guide line and the positioning limit groove of the new motor housing structure provided by the utility model;

[0020] Figure 3 A schematic diagram of the structural position of the positioning installation groove and the positioning limit block of the new motor housing structure provided by the utility model;

[0021] Figure 4 A schematic diagram of the structure of a guide frame of a novel motor housing structure provided by the utility model;

[0022] Figure 5 This is an enlarged view of the structure of the guide frame of the new motor housing structure provided by the utility model;

[0023] Figure 6 A schematic diagram of the connection structure of the guide frame of the new motor housing structure provided by the utility model;

[0024] Figure 7 A schematic diagram of the structure of the second fixing ring frame of the novel motor housing structure provided by the utility model;

[0025] Figure 8 A schematic diagram of the structure of a fixing member of the new motor housing structure provided by the utility model;

[0026] Fig. 9 This is a schematic structural diagram of another fixing part of the novel motor housing structure provided by the utility model.

[0027] The markings in the figure are as follows:

[0028] 1. Stator housing; 2. Brush holder rear cover assembly; 3. Positioning guide wire; 4. Positioning limit groove; 5. Positioning installation groove; 6. Positioning limit block; 7. Fixed ring frame 1; 8. Guide plug rod; 9. Fixed ring frame 2; 10. Guide socket; 11. Fixing piece; 12. Positioning groove; 13. Anti-slip ring; 14. Slot; 15. Screw hole 1; 16. Fixing screw; 17. Screw hole 2; 18. Fixing bolt. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As in the background art, during installation, the alignment method of the positioning line is performed by visual means, but visual deviation will have a great impact on the consistency of the output performance of the whole machine.

[0031] In order to solve this technical problem, the utility model provides a novel motor housing structure, which is applied to motor housing assembly.

[0032] Specifically, please refer to Figure 1-Figure 3 , the new motor housing structure specifically includes:

[0033] The stator casing 1 and the brush holder rear cover assembly 2 are snap-fitted and connected; a positioning guide line 3 is vertically arranged on the circumferential side of the brush holder rear cover assembly 2, a positioning limit groove 4 is opened at the inner lower end of the brush holder rear cover assembly 2, and the positioning limit groove 4 corresponds to the position of the positioning guide line 3, a positioning installation groove 5 is opened at the inner upper end of the stator casing 1 and at a position corresponding to the positioning limit groove 4, a positioning limit block 6 is fixedly connected to the inner side of the stator casing 1 and at a position below the positioning limit groove 5, and the positioning limit block 6 is vertically plug-connected to the positioning limit groove 4.

[0034] The novel motor housing structure provided by the utility model guides the insertion of the positioning limit groove 4 and the positioning limit block 6 through the positioning guide line 3 when the stator housing 1 and the brush holder rear cover assembly 2 are assembled, and the assembly positioning of the stator housing 1 and the brush holder rear cover assembly 2 is realized through the insertion of the positioning limit groove 4 and the positioning limit block 6. Therefore, the positioning method of this design greatly improves the stability of the motor performance output and avoids the assembly deviation problem caused by visual assembly.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] Embodiment 1:

[0037] Please refer to Figure 1-Figure 3 , a new motor housing structure, comprising:

[0038] The stator casing 1 and the brush holder rear cover assembly 2 are snap-fitted and connected; a positioning guide line 3 is vertically arranged on the circumferential side of the brush holder rear cover assembly 2, a positioning limit groove 4 is opened at the inner lower end of the brush holder rear cover assembly 2, and the positioning limit groove 4 corresponds to the position of the positioning guide line 3, a positioning installation groove 5 is opened at the inner upper end of the stator casing 1 and at a position corresponding to the positioning limit groove 4, a positioning limit block 6 is fixedly connected to the inner side of the stator casing 1 and at a position below the positioning limit groove 5, and the positioning limit block 6 is vertically plug-connected to the positioning limit groove 4.

[0039] It can be seen that when the stator housing 1 and the brush holder rear cover assembly 2 are assembled, the positioning guide line 3 is used to guide the insertion of the positioning limit groove 4 and the positioning limit block 6, and the assembly positioning of the stator housing 1 and the brush holder rear cover assembly 2 is achieved through the insertion of the positioning limit groove 4 and the positioning limit block 6. Therefore, the positioning method of this design greatly improves the stability of the motor performance output and avoids the assembly deviation problem caused by visual assembly.

[0040] Embodiment 2:

[0041] The novel motor housing structure provided in Example 1 is further optimized. Specifically, Figure 4-Figure 8As shown, it also includes a guide frame body, the guide frame includes a fixed ring frame 1 7 and a fixed ring frame 2 9, the fixed ring frame 1 7 is sleeved on the outside of the stator housing 1, the fixed ring frame 1 7 is detachably fixed to the stator housing 1 through a fixing member 11, and the fixed ring frame 2 9 is sleeved on the outside of the brush holder rear cover assembly 2, wherein the inner side of the fixed ring frame 2 9 is fixedly connected with an anti-skid ring 13, and the friction between the fixed ring frame 2 9 and the brush holder rear cover assembly 2 is improved by the anti-skid ring 13, so as to achieve the fixing of the fixed ring frame 2 9 and the brush holder rear cover assembly 2, and the anti-skid ring 13 corresponds to the position of the positioning groove 12 A slot 14 is provided at the fixing ring frame 1 7 to prevent the anti-slip ring 13 from blocking the insertion of the positioning guide wire 3 and the positioning groove 12. A guide rod 8 is vertically fixedly connected to the upper end of the fixing ring frame 1 7. A guide socket 10 is provided on the fixing ring frame 2 9. The guide socket 10 corresponds to the position of the guide rod 8. The guide rod 8 is vertically plugged and connected to the guide socket 10. Further, in order to ensure that the movement of the fixing ring frame 2 9 is more stable, the number of the guide rods 8 is multiple, and the multiple guide rods 8 are arranged in a circular array. The number of guide sockets 10 is the same as the number of guide rods 8. A positioning groove 12 is provided on the inner side of the fixing ring frame 2 9 and at a position corresponding to the positioning guide wire 3. The positioning guide wire 3 is located inside the positioning groove 12. The positioning groove 12 is vertically plugged and connected to the positioning guide wire 3.

[0042] It can be known that before the stator casing 1 and the brush holder rear cover assembly 2 are assembled, the fixing ring frame 1 7 is sleeved on the outside of the stator casing 1, and the fixing ring frame 1 7 and the stator casing 1 are fixed by the fixing part 11, and the fixing ring frame 2 9 is sleeved on the outside of the brush holder rear cover assembly 2, and then during the assembly process of the stator casing 1 and the brush holder rear cover assembly 2, the movement of the brush holder rear cover assembly 2 can be guided by the connection between the guide rod 8 and the guide socket 10, so that the brush holder rear cover assembly 2 and the stator casing 1 can be quickly buckled; and the positioning groove 12 and the positioning guide line 3 can be used to realize the positioning and installation of the fixing ring frame 2 9 and the brush holder rear cover assembly 2.

[0043] Specifically, the fixing member 11 includes a fixing screw 16 , and a screw hole 15 is provided on the circumferential side of the fixing ring frame 7 , and the fixing screw 16 is threadedly connected to the screw hole 15 .

[0044] Through the above structural design, after the fixing ring frame 7 is sleeved on the outside of the stator casing 1, the fixing screw 16 is inserted into the screw hole 15, and the stator casing 1 is squeezed by tightening the fixing screw 16, so that the connection and fixation of the fixing ring frame 7 and the stator casing 1 are achieved, and the connection effect is relatively firm and stable.

[0045] Embodiment 3:

[0046] The difference between this embodiment and the above-mentioned embodiment 2 is only the structure of the fixing member 11. Specifically, the fixing member 11 of this embodiment is as follows: Fig. 9As shown, the fixing member 11 includes a fixing bolt 18 , and a screw hole 2 17 is provided on the circumferential side of the fixing ring frame 1 7 , and the fixing bolt 18 is threadedly connected to the screw hole 2 17 .

[0047] Through the above structural design, after the fixing ring frame 1 7 is sleeved on the outside of the stator casing 1, the fixing bolt 18 is inserted into the screw hole 2 17, and the stator casing 1 is squeezed by tightening the fixing bolt 18, so that the connection and fixation of the fixing ring frame 1 7 and the stator casing 1 are achieved, and the connection effect is relatively rapid.

Claims

1. A new motor housing structure, characterized in that: include: A stator housing (1) and a brush holder rear cover assembly (2), wherein the stator housing (1) and the brush holder rear cover assembly (2) are snap-fitted and connected; a positioning guide line (3) is vertically arranged on the circumference of the brush holder rear cover assembly (2); a positioning limit groove (4) is provided at the inner lower end of the brush holder rear cover assembly (2); the positioning limit groove (4) corresponds to the position of the positioning guide line (3); a positioning installation groove (5) is provided at the inner upper end of the stator housing (1) and at a position corresponding to the positioning limit groove (4); a positioning limit block (6) is fixedly connected to the inner side of the stator housing (1) and at a position below the positioning limit groove (5); the positioning limit block (6) is vertically plug-connected to the positioning limit groove (4).

2. The novel motor housing structure according to claim 1 is characterized in that: The invention also comprises a guide frame body, wherein the guide frame comprises a fixed ring frame 1 (7) and a fixed ring frame 2 (9), wherein the fixed ring frame 1 (7) is sleeved on the outside of the stator housing (1), and the fixed ring frame 1 (7) is detachably fixed to the stator housing (1) through a fixing member (11), and the fixed ring frame 2 (9) is sleeved on the outside of the brush frame rear cover assembly (2), and the upper end of the fixed ring frame 1 (7) is vertically fixedly connected to a guide plug rod (8), and the fixed ring frame 2 (9) is A guide socket (10) is provided on the upper surface, the guide socket (10) corresponds to the position of the guide plug rod (8), the guide plug rod (8) and the guide socket (10) are vertically plug-connected, a positioning groove (12) is provided on the inner side of the second fixed ring frame (9) and at a position corresponding to the positioning guide line (3), the positioning guide line (3) is located inside the positioning groove (12), and the positioning groove (12) and the positioning guide line (3) are vertically plug-connected.

3. The novel motor housing structure according to claim 2 is characterized in that: The number of the guide rods (8) is multiple, and the multiple guide rods (8) are arranged in a ring array, and the number of the guide holes (10) is the same as the number of the guide rods (8).

4. The novel motor housing structure according to claim 2 is characterized in that: An anti-skid ring (13) is fixedly connected to the inner side of the second fixed ring frame (9), and a slot (14) is provided at a position corresponding to the anti-skid ring (13) and the positioning groove (12).

5. The novel motor housing structure according to claim 2 is characterized in that: The fixing member (11) comprises a fixing screw (16), a screw hole (15) is provided on the circumferential side of the fixing ring frame (7), and the fixing screw (16) is threadedly connected to the screw hole (15).

6. The novel motor housing structure according to claim 2 is characterized in that: The fixing member (11) comprises a fixing bolt (18), a screw hole (17) is provided on the circumferential side of the fixing ring frame (7), and the fixing bolt (18) is threadedly connected to the screw hole (17).

Images