Commutator for electric machines capable of carrying high currents

Abstract

The utility model relates to motor commutator technical field, concretely relates to the motor commutator of big current can be borne, including insulating sleeve, the outside wall of insulating sleeve is set up with multiple groups of insertion slot, and the bottom end fixed of insulating sleeve has bottom ring subassembly, and the bottom ring subassembly includes the inner ring and the bottom sleeve ring of setting up in the outside of inner ring, the outside fixed of inner ring has bottom sleeve ring, the outside of insertion slot sets up and is equipped with the commutator piece structure, and every group commutator piece is the combined structure of outer plate and inner tube, and the middle part of inner tube is set up with groove body and is inserted and is equipped with the fixed round rod in the groove body, and the inner tube is inserted and is equipped with in the insertion slot, the top of insulating sleeve is provided with the top, and the bottom ring subassembly of bottom end among them can be connected with the sleeve of inner ring, and the round rod structure is connected with the sleeve of outer plate structure and is equipped with fixed, and the user can fix the sleeve of the specified number of outer plate and inner tube structure with insertion slot, and the commutator piece structure with the problem of appearing damage is replaced, reaches the function of quick replacement.

Description

Technical Field

[0001] This utility model relates to the field of motor commutator technology, and specifically to a motor commutator capable of withstanding large currents. Background Technology

[0002] An electric motor is a device that converts electrical energy into mechanical energy. As an indispensable basic device in industry, transportation, national defense, and daily life, the downstream industries of electric motors include almost all basic industries of the national economy. As one of the core components of an electric motor, the commutator has also grown with the development of the electric motor industry. The motor commutator is an important component in the armature of DC motors and AC commutator motors. It plays a commutation role when the motor rotates. It is a component in DC motors and AC series motors that performs current commutation in order to allow the motor to continue rotating.

[0003] However, the existing commutator consists of an insulating sleeve and multiple commutator segments. The multiple commutator segments are fixedly mounted on the insulating sleeve, making it inconvenient to replace the commutator segments when they are damaged. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a motor commutator that can withstand large currents, which can effectively solve the problems in the existing technology.

[0006] This utility model provides a motor commutator capable of withstanding high current, including an insulating sleeve. Multiple slots are formed on the outer wall of the insulating sleeve, and a bottom ring assembly is fixed to the bottom end of the insulating sleeve. The bottom ring assembly includes an inner ring and a bottom sleeve ring fitted around the outer side of the inner ring. The bottom sleeve ring is fixed to the outer side of the inner ring. A commutator segment structure is fitted around the outer side of the slots, and each commutator segment is a combination structure of an outer plate and an inner cylinder. A groove is formed through the middle of the inner cylinder, and a round rod is inserted and fixed within the groove. The inner cylinder is inserted and fixed within the slots. A top cover is provided at the top of the insulating sleeve.

[0007] Furthermore, the bottom of the top cover and the top of the inner ring are respectively provided with a bottom hole and a positioning hole, and the upper and lower ends of the round rod are respectively inserted into the bottom hole and the positioning hole.

[0008] Furthermore, grooves are provided on the outer side wall of the inner ring and the inner side wall of the bottom ring, and the bottom ring is engaged and fixed with the inner ring.

[0009] Furthermore, the slot is a square groove with rounded corners inside, and the top of the round rod protrudes beyond the top of the outer plate.

[0010] Furthermore, multiple sets of slots are equidistantly provided on the outer side of the insulating sleeve.

[0011] This utility model, by setting an insulating sleeve structure with a slot, allows the user to fix and insert the outer plate structure with the inner cylinder into the slot of the insulating sleeve. After initial fixing, a round rod can be inserted through the groove in the inner cylinder and protrude from its top. The bottom of the round rod can be inserted into the positioning hole, and the top of the round rod can be locked onto the top cover with the bottom hole, covering the top of the insulating sleeve. The bottom ring assembly at the bottom end can be connected and fitted with the inner ring to achieve the combined function. Therefore, in use, the round rod structure and the outer plate structure are connected and fixed. The user can fix a specified number of outer plates and inner cylinder structures to the slot and replace any damaged reversing segments, achieving a quick replacement function. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view of the structure of this utility model;

[0015] Figure 3 This is an exploded view of the structure of this utility model;

[0016] Figure 4 This is a structural exploded view of the bottom ring assembly of this utility model.

[0017] The labels in the diagram represent: 1. Insulating sleeve; 11. Slot; 12. Positioning hole; 13. Outer plate; 14. Inner cylinder; 15. Round rod; 2. Top cover; 21. Bottom hole; 3. Bottom ring assembly; 31. Inner ring; 32. Bottom collar. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Example: A motor commutator capable of withstanding high current, see attached diagram. Figure 1 - Appendix Figure 4 The device includes an insulating sleeve 1, which has multiple sets of slots 11 on its outer side wall. A bottom ring assembly 3 is fixed to the bottom end of the insulating sleeve 1. The bottom ring assembly 3 includes an inner ring 31 and a bottom ring 32 sleeved on the outside of the inner ring 31. The bottom ring 32 is fixed to the outside of the inner ring 31. A commutator structure is sleeved on the outside of the slots 11. Each set of commutators is a combination structure of an outer plate 13 and an inner cylinder 14. A groove is opened through the middle of the inner cylinder 14. A round rod 15 is inserted and fixed in the groove. The inner cylinder 14 is inserted and fixed in the slot 11. A top cover 2 is provided at the top of the insulating sleeve 1.

[0021] The bottom of the top cover 2 and the top of the inner ring 31 are respectively provided with a bottom hole 21 and a positioning hole 12. The upper and lower ends of the round rod 15 are respectively inserted into the bottom hole 21 and the positioning hole 12. The outer side wall of the inner ring 31 and the inner side wall of the bottom sleeve 32 are both provided with grooves, and the bottom sleeve 32 is engaged and fixed with the inner ring 31. The slot 11 is a square groove with rounded corners inside, and the top of the round rod 15 protrudes from the top of the outer plate 13. Multiple sets of slots 11 are equally spaced on the outer side of the insulating sleeve 1. By setting the insulating sleeve 1 structure with slots 11, the user can fix and insert the outer plate 13 structure with the inner cylinder 14 into the slots 11 on the outside of the insulating sleeve 1. After initial fixing, the round rod 15 can be inserted into the groove in the inner cylinder 14 and protrude from its top. The bottom of the round rod 15 can be inserted into the positioning hole 121, and the top of the round rod 15 can be locked onto the top cover 2 with the bottom hole 21. The top cover 2 covers the top of the insulating sleeve 1, and the bottom ring assembly 3 at the bottom end can be connected and sleeved with the inner ring 31 to achieve the combined function. Therefore, in use, the round rod 15 structure is connected and sleeved with the outer plate 13 structure. The user can fix a specified number of outer plates 13 and inner cylinder 14 structures to the slot 11 and replace any damaged reversing segments to achieve the function of quick replacement.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. Commutator for electric machines capable of carrying high currents, characterised in that, The device includes an insulating sleeve (1), which has multiple slots (11) on its outer side wall. A bottom ring assembly (3) is fixed at the bottom of the insulating sleeve (1). The bottom ring assembly (3) includes an inner ring (31) and a bottom ring (32) fitted on the outside of the inner ring (31). The bottom ring (32) is fixed on the outside of the inner ring (31). A commutator structure is fitted on the outside of the slot (11). Each commutator is a combination structure of an outer plate (13) and an inner cylinder (14). A groove is opened through the middle of the inner cylinder (14). A round rod (15) is inserted and fixed in the groove. The inner cylinder (14) is inserted and fixed in the slot (11). A top cover (2) is provided at the top of the insulating sleeve (1).

2. The high current capable motor commutator of claim 1, wherein, The bottom of the top cover (2) and the top of the inner ring (31) are respectively provided with a bottom hole (21) and a positioning hole (12), and the upper and lower ends of the round rod (15) are respectively inserted into the bottom hole (21) and the positioning hole (12).

3. The high current capable motor commutator of claim 1, wherein, The outer side wall of the inner ring (31) and the inner side wall of the bottom ring (32) are both provided with grooves, and the bottom ring (32) and the inner ring (31) are engaged and fixed together.

4. The high current capable motor commutator of claim 1, wherein, The slot (11) is a square groove with rounded corners inside, and the top of the round rod (15) protrudes from the top of the outer plate (13).

5. The high current capable motor commutator of claim 4, wherein, The slots (11) are provided at equal intervals on the outside of the insulating sleeve (1).

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