A combination structure of automotive domain control power supply studs

Abstract

The utility model belongs to the technical field of automotive domain products, and is an automotive domain control power supply stud assembly structure. It comprises a metal base (1), a stud (2), and a plastic base (3). The plastic base (3) is provided with a plurality of notches (4). The metal base (1) is provided with a clamping portion (5) corresponding to the position and number of the notches (4). The stud (2) comprises a stud rod body (6) and a stud end (7). The stud rod body (6) is provided with an annular groove portion (8) near the stud end (7). A through hole (9) is provided on the metal base (1). The automotive domain control power supply stud assembly structure described in the utility model can be assembled and disassembled conveniently and quickly, meets the requirements of large current input during operation, minimizes the problem of temperature rise under the same current, meets the requirements of large torque, and improves the reliability of product performance.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile domain products, and more specifically, relates to an automobile domain control power supply stud combination structure. Background Art

[0002] With the advancement of science and technology, the diversification and intelligence of automobiles are booming in today's market. With the purpose of integrating resources and reducing costs, major domestic OEMs have launched body domain products, integrating the functions of various small modules on the car into one module. This also makes the design requirements of the domain controller more stringent, and any problem may cause the paralysis of the entire domain. In the prior art, the automotive domain control power studs are high-current inputs. Due to the large current, the stud combination heats up quickly during operation, and excessive temperature affects performance; at the same time, because the stud combination needs to be connected to the power end of the vehicle and fixed with a nut, there is a large torque when the nut is connected. The structure of the prior art cannot meet the large torque requirements, and the large torque affects product performance.

[0003] The prior art has a technology named "combined stud" and a publication number of "CN201121630Y", which discloses a combined stud, which includes a positioning nut (1), a long threaded rod (2), a connecting rod (3) and a screw (4); the bottom surface of the screw head of the screw (4) not connected to the threaded rod is a flat surface (9); the long threaded rod (2) and the connecting rod (3) are respectively fixed on the two end surfaces of the positioning nut (1); the connecting rod (3), the positioning nut (1) and the long threaded rod (2) are all provided with axial threaded holes, and the three axial threaded holes are connected as one; the screw (4) is screwed into the axial threaded holes connected as one; a gasket (5) is fixed on the connecting rod (3); the gasket (5) is in close contact with the bottom surface of the screw head of the screw (4) not connected to the threaded rod. The advantage of the utility model is that it can make the connected parts firmly and stably connected and detachable. However, the technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, to provide an automotive domain control power supply stud combination structure which has a simple structure, can be easily and quickly assembled and disassembled, meets the requirements of large current input during operation, minimizes the problem of temperature rise under the same current, and meets large torque requirements, thereby improving the performance reliability of automotive domain products.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0006] The utility model is a combined structure of a car domain control power supply stud, comprising a metal base, a stud and a plastic base. A plurality of notches are arranged on the plastic base, a clamping portion corresponding to the position and number of the notches is arranged on the metal base, the stud comprises a stud rod body and a stud end, an annular groove portion is arranged on the stud rod body near the stud end, and a through hole is arranged on the metal base.

[0007] A plurality of bosses are arranged on one side of the stud end connected to the stud rod body, and a limiting column is arranged on the plastic base.

[0008] The material hardness of the stud is higher than that of the metal base.

[0009] The metal base comprises a metal base body and a clamping portion, wherein the clamping portion is perpendicular to the metal base body, a plurality of welding pins are formed on the clamping portion, the welding pins are welded and connected to the PCB board, and through holes are arranged on the metal base body.

[0010] The plastic base comprises a plastic base body and a limiting column.

[0011] The clamping part of the metal base is clamped in the notch of the plastic base, and the stud end of the stud is located between the metal base body and the plastic base body.

[0012] A serration portion is arranged on the side surface of the clamping portion of the metal base.

[0013] The plastic base body of the plastic base is provided with heat dissipation through holes.

[0014] When the stud end of the stud is located between the metal base body and the plastic base body, the edge of the through hole of the metal base is clamped in the annular groove, and the boss of the stud end of the stud is clamped in the recess formed by the force on the metal base body of the metal base.

[0015] A limiting column is arranged on the plastic base body of the plastic base, a thin rib is arranged on the side of the limiting column, and the limiting column is clamped in a plate hole on the PCB board.

[0016] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0017] The automobile domain control power stud combination structure described in the utility model, when the structure is set, a metal base, a stud, and a plastic base are made separately, a plurality of notches are set on the plastic base, a clamping part corresponding to the position and number of the notches is set on the metal base, the stud includes a stud rod body and a stud end, a ring groove part is set near the stud end of the stud rod body, and a through hole is set on the metal base. It is necessary to combine and connect the metal base, the stud, and the plastic base to form the automobile domain control power stud combination structure. When combined and connected, the stud is first passed through the through hole on the metal base, and then the clamping part of the metal base is clamped in the notch of the plastic base. At this time, the stud end of the stud is located between the metal base body and the plastic base body. In the above structure, the metal base, the stud, and the plastic base can be conveniently and reliably combined and connected, and can meet the input requirements of large current. Because the current is large, the temperature of the product rises quickly when working. The structure of the utility model can maximize the reduction of temperature rise under the same current. In addition, because the power stud combination needs to be connected to the power end of the whole vehicle, it is fixed with a nut, and the structure can meet the large torque requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a structural schematic diagram of the automobile domain control power supply stud assembly structure described in the utility model;

[0020] Figure 2 It is a structural schematic diagram of the metal base and the plastic base of the automobile domain control power supply stud assembly structure described in the utility model when they are connected;

[0021] Figure 3 It is a structural schematic diagram of the metal base of the automobile domain control power supply stud assembly structure described in the utility model;

[0022] Figure 4 It is a structural schematic diagram of the metal base of the automobile domain control power supply stud assembly structure described in the utility model;

[0023] Figure 5 It is a schematic cross-sectional structure diagram of the metal base of the automobile domain control power supply stud assembly structure described in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the studs of the automobile domain control power supply stud assembly structure described in the utility model;

[0025] Figure 7 It is a structural schematic diagram of the studs of the automobile domain control power supply stud assembly structure described in the utility model;

[0026] Figure 8This is a structural schematic diagram of a plastic base of the automotive domain control power supply stud assembly structure described in the utility model;

[0027] Fig. 9 This is a structural schematic diagram of a plastic base of the automotive domain control power supply stud assembly structure described in the utility model;

[0028] Fig.10 It is a structural schematic diagram of the metal base and the stud assembly structure of the automobile domain control power supply described in the utility model when the stud assembly is connected;

[0029] Fig.11 It is a partial enlarged structural schematic diagram of the metal base and the stud assembly structure of the automobile domain control power supply described in the utility model when the stud assembly is connected;

[0030] The marks in the attached drawings are: 1. Metal base; 2. Stud; 3. Plastic base; 4. Notch; 5. Clamp; 6. Stud rod; 7. Stud end; 8. Ring groove; 9. Through hole; 10. Boss; 11. Limit column; 12. Metal base body; 13. Welding foot; 14. Plastic base body; 15. Serrated part; 16. Heat dissipation through hole; 17. Fine ribs. DETAILED DESCRIPTION

[0031] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0032] As attached Figure 1 -Attached Fig.11As shown, the utility model is a combination structure of a domain-controlled power supply stud for automobiles, comprising a metal base 1, a stud 2, and a plastic base 3. A plurality of notches 4 are arranged on the plastic base 3. A clamping portion 5 corresponding to the position and number of the notches 4 is arranged on the metal base 1. The stud 2 comprises a stud rod body 6 and a stud end 7. An annular groove portion 8 is arranged near the stud end 7 of the stud rod body 6. A through hole 9 is arranged on the metal base 1. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When the structure is set, the metal base 1, the stud 2, and the plastic base 3 are respectively made. A plurality of notches 4 are arranged on the plastic base 3. A clamping portion 5 corresponding to the position and number of the notches 4 is arranged on the metal base 1. The stud 2 comprises a stud rod body 6 and a stud end 7. An annular groove portion 8 is arranged near the stud end 7 of the stud rod body 6. A through hole 9 is arranged on the metal base 1. The metal base 1, the stud 2, and the plastic base 3 need to be combined and connected to form a combination structure of a domain-controlled power supply stud for automobiles. When combined and connected, first pass the stud 2 through the through hole 9 on the metal base 1, and then the clamping part 5 of the metal base 1 is clamped in the notch 4 of the plastic base 3. At this time, the stud end 7 of the stud 2 is located between the metal base body 12 and the plastic base body 14. The above structure, the metal base 1, the stud 2, and the plastic base 3 can be conveniently and reliably combined and connected, and can meet the input requirements of large currents. Because the current is large, the temperature of the product rises quickly during operation. The structure of the utility model can minimize the temperature rise under the same current. In addition, because the power supply stud combination needs to be connected to the power supply end of the whole vehicle and is fixed with a nut, the structure can meet the large torque requirements. In summary, the automotive domain control power supply stud combination structure described in the utility model has a simple structure, can be easily and quickly assembled and disassembled, meets the large current input requirements during operation, minimizes the temperature rise problem under the same current, and meets large torque requirements, thereby improving product performance reliability.

[0033] The stud end 7 of the stud 2 is connected to the side of the stud rod 6 and is provided with multiple bosses 10. In the above structure, multiple groups of bosses 10 are provided on the stud end 7 (flange surface) of the stud, and a circle of annular groove 8 is designed at the root of the stud rod, and the groove width T'=T-0.5mm. The stud 2 passes through the through hole 9 on the metal base 1, and the diameter of the through hole Dhole=the diameter of the stud Dstud+0.1. When assembling the automotive domain control power supply stud assembly structure, the stud end 7 of the stud 2 is pressed down by the tooling, and the boss 10 on the stud end 7 applies force to the metal base 1, the metal base is deformed, and a concave portion is formed. The boss is located in the concave portion, which plays a role in improving the torsion resistance. At the same time, the material at the edge of the through hole of the metal base 1 will be squeezed and extended into the annular groove 8 at the root of the stud 2 to ensure that the stud 2 and the metal base 1 are reliably engaged. A limit column 11 is provided on the plastic base 3. In the above structure, when the plastic base 3 is assembled and connected with the PCB board, the PCB board is connected by the limit column. After a test sample stud 2 is connected with the metal base, the torque test reaches about 15N.m to 20N.m (torque when the crimped stud is loosened). In this way, the reliability of the structural connection is effectively improved.

[0034] The material hardness of the stud 2 is higher than that of the metal base 1. In the above structure, the material hardness of the stud 2 is higher than that of the metal base 1, ensuring that when the boss 10 on the stud end 7 applies force to the metal base 1, the metal base 1 is deformed to form a recess, so that the boss 10 is located in the recess, and the stud 2 is reliably in contact with the metal base 1, which plays a role in improving the torsion resistance.

[0035] The metal base 1 includes a metal base body 12 and a clamping portion 5, the clamping portion 5 is perpendicular to the metal base body 12, a plurality of welding pins 13 are formed on the clamping portion 5, the welding pins 13 are welded and connected to the PCB board, and the through hole 9 is set on the metal base body 12. The plastic base 3 includes a plastic base body 14 and a limiting column 11. The above structure sets the structure of the metal base and the plastic base respectively, ensuring that the metal base and the plastic base are reliably connected when combined.

[0036] The clamping portion 5 of the metal base 1 is clamped in the notch 4 of the plastic base 3 , and the stud end 7 of the stud 2 is located between the metal base body 12 and the plastic base body 14 .

[0037] The side of the clamping part 5 of the metal base 1 is provided with a serration 15. With the above structure, when the plastic base 3 is connected to the metal base 1, the serration 15 of the metal base 1 can effectively increase the friction, ensuring that the plastic base and the metal base are firmly assembled and will not fall off easily.

[0038] The plastic base body 14 of the plastic base 3 is provided with a heat dissipation through hole 16. In the above structure, the heat dissipation through hole 16 is directly opposite to the stud end of the stud, which is conducive to heat dissipation of the stud end. In this way, the problem of the stud assembly heating up quickly during operation affecting the overall performance of the product is effectively eliminated.

[0039] When the stud end 7 of the stud 2 is located between the metal base body 12 and the plastic base body 14, the edge of the through hole 9 of the metal base 1 is clamped in the annular groove 8, and the boss 10 of the stud end 7 of the stud 2 is clamped in the recess formed by the force on the metal base body 12 of the metal base 1. With the above structure, the metal base, stud and plastic base are reliably combined.

[0040] The plastic base body 14 of the plastic base 3 is provided with a limit column 11, and a thin rib 17 is provided on the side of the limit column 11. The limit column 11 is clamped in the plate hole on the PCB board. In the above structure, when the limit column is clamped in the plate hole on the PCB board, the thin rib is tightly clamped with the groove of the plate hole, so that the position between the limit column and the plate hole is reliable, thereby reducing the influence of torsion on the welding foot.

[0041] In the automobile domain control power supply stud combination structure described in the utility model, the material of the metal base 1 can be H65, the material of the stud 2 can be SUS304, and the material of the plastic base 3 can be PA6T. The thermal deformation temperature can reach 290°C, thereby effectively meeting the performance requirements.

[0042] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An automobile domain control power supply stud assembly structure, characterized in that: The invention comprises a metal base (1), a stud (2), and a plastic base (3); a plurality of notches (4) are arranged on the plastic base (3); a clamping portion (5) corresponding to the position and number of the notches (4) is arranged on the metal base (1); the stud (2) comprises a stud rod body (6) and a stud end (7); a ring groove portion (8) is arranged on the stud rod body (6) near the stud end (7); and a through hole (9) is arranged on the metal base (1).

2. The automobile domain control power supply stud assembly structure according to claim 1 is characterized in that: A plurality of bosses (10) are arranged on one side of the stud end (7) of the stud (2) connected to the stud rod body (6), and a limiting column (11) is arranged on the plastic base (3).

3. The automobile domain control power supply stud assembly structure according to claim 2 is characterized in that: The material hardness of the stud (2) is higher than the material hardness of the metal base (1).

4. The automobile domain control power supply stud assembly structure according to claim 2 or 3, characterized in that: The metal base (1) comprises a metal base body (12) and a clamping portion (5), wherein the clamping portion (5) is perpendicular to the metal base body (12), a plurality of welding pins (13) are formed on the clamping portion (5), the welding pins (13) are welded to a PCB board, and a through hole (9) is arranged on the metal base body (12).

5. The automobile domain control power supply stud assembly structure according to claim 4 is characterized in that: The plastic base (3) comprises a plastic base body (14) and a limiting column (11).

6. The automobile domain control power supply stud assembly structure according to claim 5 is characterized in that: The clamping portion (5) of the metal base (1) is clamped in the notch (4) of the plastic base (3), and the stud end (7) of the stud (2) is located between the metal base body (12) and the plastic base body (14).

7. The automobile domain control power supply stud assembly structure according to claim 1 or 2, characterized in that: A serration portion (15) is provided on the side surface of the clamping portion (5) of the metal base (1).

8. The automobile domain control power supply stud assembly structure according to claim 5 is characterized in that: A heat dissipation through hole (16) is provided on the plastic base body (14) of the plastic base (3).

9. The automobile domain control power supply stud assembly structure according to claim 6, characterized in that: When the stud end (7) of the stud (2) is located between the metal base body (12) and the plastic base body (14), the edge of the through hole (9) of the metal base (1) is clamped in the annular groove (8), and the boss (10) of the stud end (7) of the stud (2) is clamped in the recess formed by the force on the metal base body (12) of the metal base (1).

10. The automobile domain control power supply stud assembly structure according to claim 1 or 2, characterized in that: A limiting column (11) is arranged on the plastic base body (14) of the plastic base (3), a thin rib (17) is arranged on the side of the limiting column (11), and the limiting column (11) is clamped in a plate hole on a PCB board.

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