CN209088691U - Automobile start electromechanical brush - Google Patents

Abstract

The utility model provides a kind of automobile start electromechanical brush, including brush carrier and the outgoing line components being arranged on brush carrier, four brush box are circumferentially provided on brush carrier, brush box has mounting hole, sliding is provided with brush in mounting hole, for the axis of four brushes by the center of brush carrier, the opposite brush in two of them position is positive brush, and the opposite brush in other two position is cathode brush；Brush box is formed by connecting by roof, left wall, right wall, bottom wall and rear wall, and brush box front end is brush outlet, is folded with the first spring on the inside of the rear wall of brush box between brush, and brush front end abuts commutator；On the inside of the roof of brush box and inside bottom wall is provided with V-groove, V-groove extends along the moving direction of brush, cylinder groove is provided at the top and bottom of brush, second spring and steel ball are provided in cylinder groove, second spring one end abuts steel ball, the second spring other end abuts cylinder trench bottom, and steel ball, which abuts V-groove and is oriented to V-groove, to be cooperated.

Description

Automobile start electromechanical brush

Technical field

The utility model relates to automobile starter technical fields, and in particular to a kind of automobile start electromechanical brush.

Background technique

Brush is an important component of automobile starter, and the brush on existing automobile starter includes brush carrier, brush Brush box is installed on frame, brush and brush spring are equipped in brush box, brush box front end is brush outlet, and brush box rear end is set It is equipped with closure plate, brush is slidably installed in brush box, and the brush that brush box is stretched out in brush inner end is exported and contacted with commutator, brush Spring one end is pressed on brush, and the brush spring other end is against on closure plate.Using the above structure, brush is in brush box Sliding has some setbacks, and is easy to appear catching phenomenon, so that contact of the brush with commutator is unreliable, causes starter work unstable It is fixed.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of automobile start electromechanical brushes, and brush is in brush box Motion process is steady, it is not easy to clamping stagnation.

For this purpose, automobile start electromechanical brush provided by the utility model, including brush carrier and is arranged on the brush carrier Outgoing line components, are circumferentially provided with four brush box on the brush carrier, and the brush box has a mounting hole, in the mounting hole Sliding is provided with brush, and the axis of four brushes passes through the center of the brush carrier, the opposite institute in two of them position Stating brush is positive brush, and the opposite brush in other two position is cathode brush；The brush box by roof, left wall, Right wall, bottom wall and rear wall are formed by connecting, and the brush box front end is brush outlet, the rear wall inside of the brush box and the electricity The first spring is folded between brush, the brush front end abuts commutator；It is set on the inside of the roof of the brush box with inside bottom wall It is equipped with V-groove, the V-groove extends along the moving direction of the brush, is provided with cylinder at the top and bottom of the brush Slot, second spring and steel ball are provided in the cylinder groove, and described second spring one end abuts the steel ball, the second spring The other end abuts the cylinder trench bottom, and the steel ball, which abuts the V-groove and is oriented to the V-groove, to be cooperated.

In an alternative embodiment of the utility model, the angle of the V-groove is 120 ° -150 °, the cylinder groove Diameter and the steel ball diameter it is equal.

In an alternative embodiment of the utility model, the V-groove is located at the middle position of the brush box.

In an alternative embodiment of the utility model, there is the first card slot on the inside of the rear wall of the brush box, it is described The rear end of brush has the second card slot, one end apical grafting of first spring in first card slot, first spring it is another One end apical grafting is in second card slot.

In an alternative embodiment of the utility model, first card slot and second card slot are cylinder groove.

In an alternative embodiment of the utility model, the left wall or right wall of the brush box are provided with open slot, The opening of the open slot passes through the open slot and brush electricity towards the commutator, the lead of the outgoing line components Connection, and can be moved in the open slot with the movement of the brush.

In an alternative embodiment of the utility model, the front end of the brush is set as cambered surface, and the half of the cambered surface The radius of diameter and the commutator is equal.

In an alternative embodiment of the utility model, the positive brush and the negative electricity scopiform at angle be 60°。

Technical solution provided by the utility model, has the advantages that

Compared to the prior art, the utility model realizes that the sliding of brush is to roll, and second spring can by steel ball The fit clearance between brush and brush box is eliminated, so that brush is fixed reliable, motion process is steady, it is not easy to clamping stagnation, So that contact of the brush with commutator is reliable, starter the operation is stable.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of automobile start electromechanical brush described in the utility model.

Fig. 2 is the enlarged diagram of encircled portion in Fig. 1.

Fig. 3 be Fig. 2 A-A to schematic cross-section.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical Novel protected range.

In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", The orientation or positional relationship of the instructions such as " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, the meaning of " multiple " It is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For For those skilled in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.

As shown in Figure 1-Figure 3, the utility model embodiment provides automobile start electromechanical brush, including brush carrier 1 and setting exist Outgoing line components 4 on brush carrier 1, four brush box 2 are circumferentially provided on brush carrier 1, and brush box 2 has mounting hole, installation Sliding is provided with brush 3 in hole, and the axis of four brushes 3 passes through the center of brush carrier 1, the opposite brush in two of them position 3 be positive brush, and the opposite brush 3 in other two position is cathode brush；Brush box 2 by roof, left wall, right wall, bottom wall and Rear wall is formed by connecting, and 2 front end of brush box is brush outlet, is folded with the first spring between brush 3 on the inside of the rear wall of brush box 2 6, on the inside of rear wall, 6 other end apical grafting of the first spring is abutted and is changed in 3 rear end of brush, 3 front end of brush 6 one end apical grafting of the first spring To device 5, after the front end of brush 3 is worn, the first spring 6 pushes brush 3 to slide in brush box 2 to commutator 5, so that electric The front end of brush 3 is contacted with commutator 5；On the inside of the roof of brush box 2 and inside bottom wall is provided with V-groove 23, and V-groove 23 is along electricity The moving direction of brush 3 extends, and the top and bottom of brush 3 are provided with cylinder groove 33,7 He of second spring is provided in cylinder groove 33 Steel ball 8,7 one end of second spring abut steel ball 8, and 7 other end of second spring abuts 33 bottom of cylinder groove, and steel ball 8 abuts V-groove 23 And it is oriented to and cooperates with V-groove 23.In this way, steel ball 8 realizes that the sliding of brush 3 is to roll, and second spring 7 can eliminate brush 3 Fit clearance between brush box 2, so that brush 3 is fixed reliable, motion process is steady, it is not easy to clamping stagnation, and then make It obtains brush 3 and the contact of commutator 5 is reliable, starter the operation is stable.

In the present embodiment, the angle of V-groove 23 is 120 ° -150 °, the diameter of cylinder groove 33 and the diameter phase of steel ball 8 Deng.

In the present embodiment, V-groove 23 is located at the middle position of brush box 2.In the effect of V-groove 23 and second spring 7 Under, steel ball 8 remains at middle position, and brush 3 does not contact generation friction with brush box 2, so that the movement of brush 3 is more Add steady.

In the present embodiment, there is the first card slot 21, the rear end of brush 3 has the second card slot on the inside of the rear wall of brush box 2 32, one end apical grafting of the first spring 6 is in the first card slot 21, and the other end apical grafting of the first spring 6 is in the second card slot 32.First card slot 21 and second card slot 32 be cylinder groove.

In the present embodiment, the left wall of brush box 2 or right wall are provided with open slot 22, and the opening direction of open slot 22 is changed To device 5, the lead of outgoing line components 4 passes through open slot 22 and brush 3 is electrically connected, and can with the movement of brush 3 and It is moved in open slot 22.

In the present embodiment, the front end of brush 3 is set as cambered surface 31, the radius of the cambered surface 31 and the radius phase of commutator 5 Deng.

In the present embodiment, positive brush and negative electricity scopiform at angle be 60 °.Above-mentioned angle refer to positive brush and Negative electricity scopiform at two angles in lesser angle.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes among the protection scope created still in the utility model.

Claims (8)

1. a kind of automobile start electromechanical brush, which is characterized in that including brush carrier and the lead-out wire group being arranged on the brush carrier Part is circumferentially provided with four brush box on the brush carrier, and the brush box has mounting hole, sliding setting in the mounting hole There is brush, the axis of four brushes passes through the center of the brush carrier, and the opposite brush in two of them position is Positive brush, the opposite brush in other two position are cathode brush；The brush box is by roof, left wall, right wall, bottom wall It is formed by connecting with rear wall, the brush box front end is brush outlet, is pressed from both sides between the brush on the inside of the rear wall of the brush box Equipped with the first spring, the brush front end abuts commutator；On the inside of the roof of the brush box and inside bottom wall is provided with V-type Slot, the V-groove extend along the moving direction of the brush, are provided with cylinder groove at the top and bottom of the brush, described Second spring and steel ball are provided in cylinder groove, described second spring one end abuts the steel ball, the second spring other end The cylinder trench bottom is abutted, the steel ball, which abuts the V-groove and is oriented to the V-groove, to be cooperated.

2. automobile start electromechanical brush according to claim 1, which is characterized in that the angle of the V-groove is 120 °- 150 °, the diameter of the diameter of the cylinder groove and the steel ball is equal.

3. automobile start electromechanical brush according to claim 2, which is characterized in that the V-groove is located at the brush box Middle position.

4. automobile start electromechanical brush according to claim 1, which is characterized in that have the on the inside of the rear wall of the brush box One card slot, the rear end of the brush have the second card slot, and one end apical grafting of first spring is in first card slot, and described the The other end apical grafting of one spring is in second card slot.

5. automobile start electromechanical brush according to claim 4, which is characterized in that first card slot and second card slot For cylinder groove.

6. automobile start electromechanical brush according to claim 1, which is characterized in that the left wall or right wall of the brush box are set It is equipped with open slot, for the opening of the open slot towards the commutator, the lead of the outgoing line components passes through the open slot It is electrically connected, and can be moved in the open slot with the movement of the brush with the brush.

7. automobile start electromechanical brush according to claim 1, which is characterized in that the front end of the brush is set as cambered surface, The radius of the radius of the cambered surface and the commutator is equal.

8. automobile start electromechanical brush according to claim 1, which is characterized in that the positive brush and the cathode brush The angle of formation is 60 °.