Split type stator wiring assembly

Abstract

The utility model provides a split type stator wiring assembly. The split type stator wiring assembly comprises a wiring block, a wiring screw, an insulation external member, a sealing member, an insulation pad and a nut. And the wiring screw sequentially passes through the wiring block, the insulating sleeve piece, the sealing piece and the insulating pad and then is locked on the stator casing by the nut. The split type stator wiring assembly is good in sealing performance, and the protection grade can reach IP67; the high-temperature resistance is good, and the starter can work normally within the temperature range which can be borne by the starter.

Description

[Technical field]

[0001] The utility model relates to the technical field of starters, in particular to a split stator wiring assembly. [Background technology]

[0002] The existing starter stator input terminals are usually connected to the stator housing in the following two ways:

[0003] 1. Adopt the incoming line rivet structure: the connection line between the rivet and the stator winding is soldered. The disadvantage is that the high temperature resistance is poor. The temperature resistance of ordinary solder is 183℃, and the temperature resistance of high temperature solder is generally 210-232℃; if the starter is started continuously in a short time, the solder may melt and there is a risk of starter failure); and the direction of the stator wire is limited by the welding direction.

[0004] 2. Use hard brazing method: flat copper wire, copper stranded wire, braided wire is directly brazed with the connecting wire of the internal stator winding. The disadvantage is that the sealing performance is poor (protection level IPX5), and the direction of the stator wire is limited by the welding direction.

[0005] In view of this, the inventor of this case conducted in-depth research on the above-mentioned issues, which led to the emergence of this case. [Contents of the utility model]

[0006] The utility model provides a split stator wiring assembly with good sealing performance and high temperature resistance performance.

[0007] The utility model is implemented as follows: a split stator wiring assembly comprises a wiring block, a wiring screw, an insulating kit, a seal, an insulating pad, and a nut; the wiring screw passes through the wiring block, the insulating kit, the seal, and the insulating pad in sequence, and is locked on the stator housing by the nut.

[0008] Furthermore, the wiring block includes a wiring body, and a first wiring belt and a second wiring belt are respectively fixed at both ends of the wiring body; the wiring body is formed with a first groove, and an elliptical hole is formed in the first groove to penetrate the wiring body for the wiring screw to pass through.

[0009] Furthermore, the insulating sleeve comprises an arcuate surface body, a first boss is formed on a side of the arcuate surface body facing the seal; and a first through hole penetrating the arcuate surface body and the first boss is formed along the axis of the insulating sleeve.

[0010] Furthermore, the insulation kit is made of any one of PPS, PAI, PEEK, and PF.

[0011] Furthermore, the sealing member comprises a sealing body, a second boss is formed on a side of the sealing body facing the insulating sleeve; and a second through hole penetrating the second boss and the sealing body is formed along the axis of the sealing member.

[0012] Furthermore, a surface of the insulating pad facing the stator housing is an arc surface, and a second groove for accommodating the seal is formed on the arc surface; a third through hole penetrating the insulating pad is formed in the second groove.

[0013] Furthermore, the insulating pad is made of PF material.

[0014] Furthermore, the binding screw includes a screw head and a screw rod.

[0015] Furthermore, the connection screws are made of copper, aluminum, or steel.

[0016] Furthermore, a gasket is installed between the nut and the insulating gasket.

[0017] The advantages of the utility model are:

[0018] 1. It adopts a split structure and is not fixedly connected to the stator housing. When the starter assembly is assembled, the nut is used to lock the wiring screw. The connection between the stator wiring assembly and the stator housing does not use welding technology. No harmful gas is generated during the production process. The working environment of the operator is environmentally friendly and there is no risk of scalding the operator.

[0019] 2. In actual production, the wiring assembly needs to be connected to the stator wire. By using a split stator wiring assembly, the direction of the stator wire can be freely adjusted during the assembly of the starter, without being restricted by the stator production. If the requirements for the stator wire are different, only stator wires of different lengths and specifications need to be made, and there is no need to remake the entire stator. This makes the stator more common and can save inventory costs.

[0020] 3. The split stator wiring assembly has good sealing performance and the protection level can reach IP67; it has good high temperature resistance and can work normally within the temperature range that the starter can withstand.

Brief Description of the Drawings

[0021] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0022] Figure 1 The utility model is a schematic diagram of the connection structure between the split stator wiring assembly and the stator housing.

[0023] Figure 2 It is a structural schematic diagram of a split stator wiring assembly in the utility model.

[0024] Figure 3It is an exploded view of the split stator wiring assembly in the utility model.

[0025] Figure 4 It is a cross-sectional view of the split stator wiring assembly in the utility model.

[0026] Figure 5 It is a structural schematic diagram of the wiring block in the utility model.

[0027] Figure 6 It is a top view of the wiring block in the utility model.

[0028] Figure 7 It is a structural schematic diagram of the insulation kit in the utility model.

[0029] Figure 8 It is a structural schematic diagram of the sealing member in the utility model.

[0030] Fig. 9 It is a structural schematic diagram of the insulating pad in the utility model.

[0031] Fig.10 It is a cross-sectional view of the insulating pad in the utility model.

[0032] Split stator connection assembly 100, stator housing 200,

[0033] Wiring block 1, wiring body 11, first wiring belt 12, second wiring belt 13, first groove 14, elliptical hole 15,

[0034] Wiring screw 2, screw head 21, screw rod 22,

[0035] Insulation set 3, arc surface body 31, first boss 32, first through hole 33,

[0036] Sealing member 4, sealing body 41, second boss 42, second through hole 43,

[0037] Insulating pad 5, second groove 51, third through hole 52,

[0038] Nut 6, gasket 7. [Specific implementation method]

[0039] In order to better understand the technical solution of the present invention, the technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] It should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing these embodiments and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. In addition, the terms "first", "second", etc., etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0041] See also Figures 1 to 10 As shown, the starter stator includes a cylindrical stator housing 200 , and a wire outlet hole for installing a split stator terminal assembly 100 is formed on the stator housing 200 .

[0042] The utility model provides a split stator wiring assembly 100, comprising a wiring block 1, a wiring screw 2, an insulating kit 3, a seal 4, an insulating pad 5, and a nut 6; the wiring screw 2 passes through the wiring block 1, the insulating kit 3, the seal 4, and the insulating pad 5 in sequence, and is locked on the stator housing 200 by the nut 6.

[0043] When installing the split stator wiring assembly and the stator housing 200: first insert the insulating kit 3 on the outlet hole, install the sealing member 4 into the insulating pad 5, then pass the wiring screw 2 through the wiring block 1 and the insulating kit 3 and out of the outlet hole, then insert the sealing member 4 and the insulating pad 5 onto the outside of the wiring screw 2, and finally tighten it with the nut 6, thus completing the operation of assembling the split stator wiring assembly on the stator housing 200.

[0044] The stator connection assembly of the utility model has at least the following beneficial technical effects:

[0045] 1. A split structure is adopted, which is not fixedly connected to the stator housing 200. When the starter assembly is assembled, the nut 6 is used to lock the terminal screw 2. The connection between the stator terminal assembly and the stator housing 200 does not use welding technology. No harmful gas is generated during the production process. The working environment of the operator is environmentally friendly, and there is no risk of scalding the operator.

[0046] 2. In actual production, the wiring assembly needs to be connected to the stator wire. By using a split stator wiring assembly, the direction of the stator wire can be freely adjusted during the assembly of the starter, without being restricted by the stator production. If the requirements for the stator wire are different, only stator wires of different lengths and specifications need to be made, and there is no need to remake the entire stator. This makes the stator more common and can save inventory costs.

[0047] 3. The split stator wiring assembly has good sealing performance and the protection level can reach IP67; it has good high temperature resistance and can work normally within the temperature range that the starter can withstand.

[0048] In the utility model, the wiring block 1 includes a wiring body 11, and the two ends of the wiring body 11 are respectively fixed with a first wiring belt 12 and a second wiring belt 13; the wiring body 11 is formed with a first groove 14, and the first groove 14 is formed with an elliptical hole 15 that penetrates the wiring body 11 for the wiring screw 2 to pass through.

[0049] The first connection belt 12 and the second connection belt 13 are used to be brazed together with the connecting wire of the stator coil assembly. By using the brazing method, the solder joint is more resistant to high temperature, the solder is not easy to melt, and the risk of starter failure is reduced.

[0050] The first groove 14 is used for assembling with the wiring screw 2 and limiting the wiring screw 2; when the wiring screw 2 is locked on the wiring block 1, the first groove 14 clamps the screw head 21 of the wiring screw 2 so that the wiring screw 2 will not rotate.

[0051] The diameter of the conventional circular hole must either be perfectly matched to the diameter of the screw 22 of the terminal screw 2, but it is difficult to pass through; or the diameter must be larger than the diameter of the screw 22, which is easy to pass through, but the contact area between the screw 22 and the terminal block 1 is too small, so the contact resistance is relatively large, resulting in power loss. Compared with the conventional circular hole, the setting of the elliptical hole 15 allows the terminal screw 2 and the terminal block 1 to have more contact area, compensating for the deviation of the welding position; and it is easier to assemble.

[0052] In the present invention, the insulating sleeve 3 includes an arc surface body 31, and a first boss 32 is formed on one side of the arc surface body 31 facing the seal 4; the insulating sleeve 3 is formed with a first through hole 33 that penetrates the arc surface body 31 and the first boss 32 along the axis. The insulating sleeve 3 is assembled between the terminal block 1 and the stator housing 200 to insulate and isolate the terminal block 1 from the stator housing 200. By setting the arc surface body 31, the insulating sleeve 3 can be tightly attached to the cylindrical stator housing 200, and the insulating sleeve 3 will not be cracked due to the gap with the stator housing 200 when locked. The first boss 32 is set to be installed in the outlet hole of the stator housing 200, and plays a radial limiting role, so that the terminal screw 2 will not touch the stator housing 200.

[0053] In the present invention, the insulating set 3 is made of any one of PPS (polyphenylene sulfide), PAI (polyamide-imide), PEEK (polyether ketone), and PF (glass fiber reinforced phenolic plastic). PAI and PEEK are expensive; PF is low in cost and has good high temperature stability, but is relatively brittle.

[0054] In the present invention, in order to seal the outlet hole, the seal 4 includes a sealing body 41, and a second boss 42 is formed on the side of the sealing body 41 facing the insulating sleeve 3; the seal 4 forms a second through hole 43 along the axis that penetrates the second boss 42 and the sealing body 41. The axial ends of the seal 4 are in contact with the insulating sleeve 3 and the insulating pad 5 respectively, and the second boss 42 is inserted into the outlet hole and in contact with the first boss 32. After locking, the sealing pad is pressed against the stator housing 200 by the insulating pad 5, radially clamping the screw 22, so that the outlet hole is completely sealed, and the protection level can reach IP67.

[0055] In the present invention, the side of the insulating pad 5 facing the stator housing 200 is an arc surface, and a second groove 51 for accommodating the seal 4 is formed on the arc surface; a third through hole 52 penetrating the insulating pad 5 is formed in the second groove 51. The insulating pad 5 presses the seal 4 so that the seal 4 plays a sealing role. The arc surface of the insulating pad 5 is adapted to the stator housing 200, and there is no gap between the insulating pad 5 and the stator housing 200 when locked to cause compression.

[0056] In the present invention, the insulating pad 5 is made of PF (glass fiber reinforced phenolic plastic) material, which has low cost and good high temperature stability.

[0057] In the present invention, the terminal screw 2 includes a screw head 21 and a screw rod 22. When tightened, the screw head 21 contacts the terminal block 1 and is inserted into the first groove 14; the screw rod 22 passes through the stator housing 200.

[0058] In the present invention, the connection screw 2 is made of copper, aluminum or steel.

[0059] In the utility model, a gasket 7 is installed between the nut 6 and the insulating gasket 5 .

[0060] Although the specific implementation methods of the present invention are described above, those skilled in the art should understand that the specific embodiments described are only illustrative and are not intended to limit the scope of the present invention. Equivalent modifications and changes made by those skilled in the art in accordance with the spirit of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A split stator connection assembly, characterized in that: The invention comprises a terminal block, a terminal screw, an insulating kit, a seal, an insulating pad, and a nut; the terminal screw passes through the terminal block, the insulating kit, the seal, and the insulating pad in sequence, and is locked on the stator housing by the nut.

2. The split stator terminal assembly according to claim 1, characterized in that: The wiring block comprises a wiring body, and a first wiring belt and a second wiring belt are fixedly provided at two ends of the wiring body respectively; the wiring body is formed with a first groove, and an elliptical hole penetrating the wiring body for a wiring screw to pass through is formed in the first groove.

3. The split stator terminal assembly according to claim 1, characterized in that: The insulating sleeve comprises an arc surface body, a first boss is formed on a side of the arc surface body facing the sealing member; and a first through hole penetrating the arc surface body and the first boss is formed along the axis of the insulating sleeve.

4. The split stator terminal assembly according to claim 3, characterized in that: The insulating kit is made of any one of PPS, PAI, PEEK and PF.

5. The split stator terminal assembly according to claim 3, characterized in that: The sealing member comprises a sealing body, a second boss is formed on a side of the sealing body facing the insulating sleeve; and a second through hole penetrating the second boss and the sealing body is formed along the axis of the sealing member.

6. The split stator terminal assembly according to claim 5, characterized in that: The side of the insulating pad facing the stator housing is an arc surface, and a second groove for accommodating the sealing member is formed on the arc surface; a third through hole penetrating the insulating pad is formed in the second groove.

7. The split stator terminal assembly according to claim 6, characterized in that: The insulating pad is made of PF material.

8. The split stator terminal assembly according to claim 6, characterized in that: The binding screw comprises a screw head and a screw rod.

9. The split stator terminal assembly according to claim 8, characterized in that: The connection screws are made of copper, aluminum or steel.

10. The split stator terminal assembly according to claim 1, characterized in that: A gasket is arranged between the nut and the insulating gasket.

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