Connecting structure of electronic actuator

Abstract

The utility model relates to the technical field of electronic actuators, and provides a connecting structure of an electronic actuator, which comprises a shell, a circuit board, a plug and a conduction mechanism, and is characterized in that the plug is fixedly arranged on the outer side of the shell; the conduction mechanism comprises a fixed seat, an inner terminal and an outer terminal, the fixed seat is fixedly arranged on the circuit board, and a limiting hole is formed in the fixed seat; one end of the inner terminal is fixed and electrically connected to the circuit board, and is clamped with the limiting hole; the outer terminal is fixed in the plug in a penetrating manner, and one end of the outer terminal penetrates through the shell and is electrically connected with the inner terminal in an inserting manner. According to the utility model, through the arrangement of the inner terminal and the outer terminal, the inner terminal can be firstly welded on the circuit board, the electronic actuator can be conveniently assembled, and through the arrangement of the fixed seat and the arrangement of the limiting hole in the fixed seat, the inner terminal is clamped and limited through the limiting hole, so that the connection reliability of the inner terminal and the circuit board can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic actuators, in particular to a connection structure of an electronic actuator. Background Art

[0002] An electronic actuator is an actuator that controls an oil pump regulating mechanism according to the output signal of an electronic controller. It can not only realize the automatic operation of the regulating mechanism, but also ensure the regulating accuracy of the regulating mechanism, and plays an important role in the automotive field.

[0003] The utility model with the publication number CN205769113U discloses an electronic actuator with an easily replaceable wire harness interface, which includes a motor part, a gear part, an output shaft part, a sensor circuit board, an anti-EMC circuit board, an upper shell, a lower shell and a wire harness interface; the motor part is installed in the lower shell, the motor part drives the gear part, the gear part is installed in the accommodating cavity formed by the upper shell and the lower shell, the gear part drives the output shaft part, the output shaft part is installed on the upper shell, and the sensor circuit board and the anti-EMC circuit board are installed in the accommodating cavity formed by the upper shell and the lower shell and are respectively connected to the wire harness interface; the wire harness interface is integrally formed with the upper shell and is fixedly installed on the upper shell, so that the wire harness interface can be replaced to meet different wire harness interface requirements and reduce production costs.

[0004] In the above technical solution, in order to facilitate the installation and maintenance of the wire harness interface, pin feet and contact terminals with a plug-in fit are provided. However, when assembling the wire harness interface, the contact terminal presses the pin feet, affecting the fixing firmness of the pin feet and the circuit board. Summary of the Utility Model

[0005] In view of this, the utility model provides a connection structure of an electronic actuator, which improves the connection reliability between the inner terminal and the circuit board on the premise of facilitating the assembly of the plug.

[0006] The technical solution of the utility model is realized as follows: The utility model provides a connection structure of an electronic actuator, which includes a housing, a circuit board, a plug and a conduction mechanism. Among them,

[0007] The circuit board is fixedly arranged in the housing;

[0008] The plug is fixedly arranged on the outer side of the housing;

[0009] The conduction mechanism includes a fixed seat, an inner terminal and an outer terminal. The fixed seat is fixedly arranged on the circuit board, and a limiting hole is opened inside it; one end of the inner terminal is fixedly and electrically connected to the circuit board and is clamped with the limiting hole; the outer terminal is fixedly penetrated in the plug, and one end of it penetrates through the housing and is inserted and electrically connected to the inner terminal.

[0010] Based on the above technical solutions, preferably, the housing includes a lower case and an upper cover, wherein,

[0011] The circuit board is fixedly arranged on the lower case;

[0012] The upper cover is detachably fixed on the lower case, fixedly connected with the plug, and the outer terminal penetrates through the upper cover.

[0013] More preferably, a plurality of the limiting holes, a plurality of the inner terminals, and a plurality of the outer terminals are provided, and the plurality of the limiting holes, the plurality of the inner terminals, and the plurality of the outer terminals correspond to each other one by one.

[0014] More preferably, the plug includes a main case and a partition frame, wherein,

[0015] The main case is fixedly arranged on the outer side of the upper cover;

[0016] The partition frame is fixedly arranged on the main case, the outer terminal penetrates and is fixed in the main case and the partition frame, a plurality of dividing grooves are formed in the partition frame, one end of the inner terminal close to the outer terminal and one end of the outer terminal close to the inner terminal are both arranged in the dividing grooves, and the plurality of the inner terminals, the plurality of the outer terminals, and the plurality of the dividing grooves correspond to each other one by one.

[0017] Based on the above technical solutions, preferably, the inner terminal includes a fixing portion and a connecting portion, wherein,

[0018] One end of the fixing portion is fixedly and electrically connected to the circuit board;

[0019] One end of the connecting portion is fixedly and electrically connected to the end of the fixing portion far from the circuit board, and is inserted and electrically connected to the outer terminal;

[0020] The limiting hole includes a through hole and a resisting hole, wherein,

[0021] The through hole is formed on the side of the fixing seat close to the circuit board, the fixing portion penetrates through the through hole and is clamped with it;

[0022] The resisting hole is formed on the side of the fixing seat far from the circuit board and communicates with the through hole, one end of the connecting portion close to the fixing portion is clamped in the resisting hole and abuts against the side of the resisting hole close to the through hole.

[0023] More preferably, a slot is formed at one end of the connecting portion far from the circuit board, and one end of the outer terminal is slidably arranged in the slot.

[0024] More preferably, the slot includes an opening and closing section and a clamping section. Both the opening and closing section and the clamping section are provided at one end of the connecting portion away from the circuit board. The clamping section is located at one end of the opening and closing section away from the circuit board and is communicated with it. The outer terminal is slidably arranged in the clamping section and the opening and closing section, and the outer terminal is connected with the clamping section by interference fit.

[0025] More preferably, the slot further includes an easy insertion section. The easy insertion section is provided at one end of the connecting portion away from the circuit board and is located at one end of the clamping section away from the circuit board. The easy insertion section is communicated with the clamping section, and the inner diameter of the easy insertion section gradually increases in the direction from one end close to the clamping section to one end away from the clamping section.

[0026] More preferably, the housing further includes a sealing ring. The sealing ring is abutted and fixed between the upper cover and the plug.

[0027] More preferably, the housing further includes a retaining piece. The retaining piece is fixedly arranged on the upper cover and abuts against the peripheral side of the plug.

[0028] The connection structure of an electronic actuator of the present utility model has the following beneficial effects compared with the prior art:

[0029] (1) By providing the inner terminal and the outer terminal, the inner terminal can be first welded to the circuit board, which is convenient for assembling the electronic actuator. By providing the fixing seat and opening a limiting hole therein, the inner terminal can be clamped and limited by the limiting hole, which can improve the connection reliability between the inner terminal and the circuit board.

[0030] (2) By connecting the outer terminal and the clamping section by interference fit, the connection strength between the two can be improved, and the problem of poor contact between the outer terminal and the inner terminal caused by vehicle vibration or other reasons can be avoided. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a cross-sectional view of the conduction mechanism in the connection structure of an electronic actuator of the present utility model;

[0033] Figure 2 It is a perspective view of the conduction mechanism in the connection structure of an electronic actuator of the present utility model;

[0034] Figure 3 A perspective view of the plug in the connection structure of an electronic actuator of the present utility model;

[0035] Figure 4 A perspective view of the housing in the connection structure of an electronic actuator of the present utility model;

[0036] Figure 5 An exploded view of the inner terminal in the connection structure of an electronic actuator of the present utility model.

[0037] Wherein: 1. Housing; 11. Lower housing; 12. Upper cover; 13. Sealing ring; 14. Retaining piece; 2. Circuit board; 3. Plug; 31. Main housing; 32. Partition frame; 301. Partition groove; 4. Conducting mechanism; 41. Fixed seat; 42. Inner terminal; 421. Fixed part; 422. Connecting part; 43. Outer terminal; 401. Limiting hole; 4011. Perforation; 4012. Abuttment hole; 402. Slot; 4021. Opening and closing section; 4022. Clamping section; 4023. Easy insertion section. Detailed implementation manners

[0038] Next, in combination with the specific implementation manners of the present utility model, the technical solutions in the present utility model will be clearly and completely described. Obviously, the described implementation manners are only a part of the implementation manners of the present utility model, rather than all of the implementation manners. Based on the implementation manners in the present utility model, all other implementation manners obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0039] As Figures 1-5 shown, a connection structure of an electronic actuator of the present utility model includes a housing 1, a circuit board 2, a plug 3 and a conducting mechanism 4.

[0040] Among them, the housing 1 is used to carry and protect other components.

[0041] The circuit board 2 is used to carry and connect various electronic components. The circuit board 2 is fixedly arranged in the housing 1 to protect the circuit board 2.

[0042] The plug 3 is used to connect with the socket of the electronic controller. The plug 3 is fixedly arranged outside the housing 1 to connect with the socket of the electronic controller.

[0043] The conduction mechanism 4 is used to conduct electricity between the circuit board 2 and the electronic controller. The conduction mechanism 4 includes a fixed seat 41, an inner terminal 42, and an outer terminal 43. One end of the inner terminal 42 is fixed and electrically connected to the circuit board 2; the outer terminal 43 is fixedly penetrated in the plug 3, and one end thereof penetrates through the housing 1 and is inserted and electrically connected to the inner terminal 42; by providing the inner terminal 42 and the outer terminal 43, the original integrated conduction component is divided into two parts. The inner terminal 42 is pre-installed on the circuit board 2 and soldered, and the outer terminal 43 is pre-fixed in the plug 3. By using the detachable plug-in fit between the inner terminal 42 and the outer terminal 43, the quick assembly and disassembly of the plug 3 and the housing 1 can be realized; the fixed seat 41 is fixedly arranged on the circuit board 2, and a limiting hole 401 is provided inside it, and one end of the inner terminal 42 is clamped with the limiting hole 401; as Figure 1 shown, the fixed seat 41 plays a role in limiting the inner terminal 42, which can avoid damaging the connection between the inner terminal 42 and the circuit board 2 when the outer terminal 43 is inserted into the inner terminal 42, and improves the connection reliability between the inner terminal 42 and the circuit board 2.

[0044] As Figure 1 shown, the housing 1 includes a lower shell 11, an upper cover 12, a sealing ring 13, and a retaining piece 14. The circuit board 2 is fixedly arranged on the lower shell 11; the upper cover 12 is detachably fixed on the lower shell 11 and fixedly connected to the plug 3, and the outer terminal 43 penetrates through the upper cover 12; the upper cover 12 and the lower shell 11 enclose a sealed cavity, and the circuit board 2 is fixed in this sealed cavity. The plug 3 is fixedly arranged on the outside of the upper cover 12. By using the split design of the inner terminal 42 and the outer terminal 43, the assembly of the upper cover 12 and the lower shell 11 can be facilitated.

[0045] The sealing ring 13 is used to improve the sealing performance between the housing 1 and the plug 3, and the sealing ring 13 is abutted and fixed between the upper cover 12 and the plug 3.

[0046] As Figure 1 and Figure 4 shown, the retaining piece 14 is fixedly arranged on the upper cover 12 and abuts against the peripheral side of the plug 3. By using the retaining piece 14 to shield the plug 3, the plug 3 can be prevented from colliding with other components, thereby protecting the plug 3. Preferably, a plurality of retaining pieces 14 are provided.

[0047] A plurality of limiting holes 401, inner terminals 42, and outer terminals 43 are provided, and the plurality of limiting holes 401, the plurality of inner terminals 42, and the plurality of outer terminals 43 correspond to each other one by one, so as to realize the conduction and control of the circuit.

[0048] As Figure 3As shown, the plug 3 includes a main housing 31 and a partition frame 32. The main housing 31 is fixedly arranged on the outer side of the upper cover 12. The partition frame 32 is fixedly arranged on the main housing 31. The outer terminal 43 is fixedly penetrated in the main housing 31 and the partition frame 32. A plurality of dividing grooves 301 are formed in the partition frame 32. One end of the inner terminal 42 close to the outer terminal 43 and one end of the outer terminal 43 close to the inner terminal 42 are both arranged in the dividing groove 301. And a plurality of inner terminals 42, a plurality of outer terminals 43 and a plurality of dividing grooves 301 correspond to each other one by one. As Figure 2 shown, one inner terminal 42 and one outer terminal 43 are arranged in each dividing groove 301, that is, the adjacent inner terminals 42 and the adjacent outer terminals 43 are isolated by the dividing groove 301 to avoid the problem of series connection between adjacent terminals.

[0049] As Figure 5 shown, the inner terminal 42 includes a fixing part 421 and a connecting part 422. One end of the fixing part 421 is fixedly and electrically connected to the circuit board 2. One end of the connecting part 422 is fixedly and electrically connected to the end of the fixing part 421 far from the circuit board 2, and is inserted and electrically connected to the outer terminal 43. Correspondingly, the limiting hole 401 includes a through hole 4011 and a resisting hole 4012. The through hole 4011 is formed on the side of the fixing seat 41 close to the circuit board 2. The fixing part 421 penetrates through the through hole 4011 and is clamped with it. The resisting hole 4012 is formed on the side of the fixing seat 41 far from the circuit board 2 and is communicated with the through hole 4011. One end of the connecting part 422 close to the fixing part 421 is clamped in the resisting hole 4012 and abuts against the side of the resisting hole 4012 close to the through hole 4011. Specifically, it is preferably that the inner diameter of the resisting hole 4012 is larger than the inner diameter of the through hole 4011, and the outer diameter of the connecting part 422 is larger than the outer diameter of the fixing part 421, so as to realize the abutment of one end of the connecting part 422 close to the circuit board 2 with the resisting hole 4012. When assembling the outer terminal 43 and the inner terminal 42, even if a large pressure is applied to the inner terminal 42 by the outer terminal 43, it can be avoided that the inner terminal 42 directly presses the circuit board 2, playing a certain protective role.

[0050] A slot 402 is formed at one end of the connecting part 422 far from the circuit board 2. One end of the outer terminal 43 is slidably arranged in the slot 402, so as to realize the insertion connection between the connecting part 422 and the outer terminal 43.

[0051] As Figure 5As shown, the slot 402 includes an opening and closing section 4021, a clamping section 4022, and an easy insertion section 4023. Both the opening and closing section 4021 and the clamping section 4022 are provided at one end of the connecting portion 422 away from the circuit board 2. The clamping section 4022 is located at one end of the opening and closing section 4021 away from the circuit board 2 and is communicated with it. The outer terminal 43 is slidably arranged in the clamping section 4022 and the opening and closing section 4021, and the outer terminal 43 is connected with the clamping section 4022 by interference fit. Specifically, the inner diameter of the clamping section 4022 can be 0.6 mm, the outer diameter of the outer terminal 43 can be 0.8 mm, and there is an interference amount of 0.2 mm between the two. When the outer terminal 43 is inserted into the clamping section 4022, the side part inside the clamping section 4022 can be separated, thereby increasing the clamping force of the inner wall of the clamping section 4022 on the outer terminal 43, improving the fixing firmness between the outer terminal 43 and the inner terminal 42, and avoiding the problem of their detachment or loosening due to vibration.

[0052] The easy insertion section 4023 is provided at one end of the connecting portion 422 away from the circuit board 2 and is located at one end of the clamping section 4022 away from the circuit board 2. The easy insertion section 4023 is communicated with the clamping section 4022, and the inner diameter of the easy insertion section 4023 gradually increases along the direction from the end close to the clamping section 4022 to the end far from the clamping section 4022. By using the easy insertion section 4023 to expand the inner diameter of the end of the slot 402, it is convenient to insert the outer terminal 43 into the slot 402.

[0053] The usage method of a connection structure of an electronic actuator of the present utility model is as follows:

[0054] When assembling this electronic actuator, first, fix the circuit board 2 on the lower shell 11, then fix the fixing seat 41 on the circuit board 2, fix the plug 3 on the upper cover 12, then fix the inner terminal 42 on the circuit board 2 and make it engage with the limit hole 401, and finally fix the upper cover 12 on the lower shell 11 and make the outer terminal 43 inserted into the inner terminal 42.

[0055] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A connection structure of an electronic actuator, characterized in that: It comprises a housing (1), a circuit board (2), a plug (3) and a conducting mechanism (4), wherein: The circuit board (2) is fixedly arranged in the housing (1); The plug (3) is fixedly arranged on the outside of the housing (1); The conduction mechanism (4) comprises a fixing seat (41), an inner terminal (42) and an outer terminal (43); the fixing seat (41) is fixedly arranged on the circuit board (2) and has a limiting hole (401) therein; one end of the inner terminal (42) is fixedly connected to and electrically connected to the circuit board (2) and is snap-fitted with the limiting hole (401); the outer terminal (43) is fixedly inserted into the plug (3) and one end of the outer terminal (43) passes through the housing (1) and is plugged into and electrically connected to the inner terminal (42).

2. The connection structure of an electronic actuator according to claim 1, characterized in that: The housing (1) comprises a lower shell (11) and an upper cover (12), wherein: The circuit board (2) is fixedly arranged on the lower shell (11); The upper cover (12) is detachably fixed to the lower shell (11) and is fixedly connected to the plug (3), and the external terminal (43) passes through the upper cover (12).

3. The connection structure of an electronic actuator according to claim 2, characterized in that: The limiting holes (401), the inner terminals (42) and the outer terminals (43) are each provided in plurality, and the plurality of limiting holes (401), the plurality of inner terminals (42) and the plurality of outer terminals (43) correspond one to one.

4. The connection structure of an electronic actuator according to claim 3, characterized in that: The plug (3) comprises a main shell (31) and a partition frame (32), wherein: The main shell (31) is fixedly arranged on the outer side of the upper cover (12); The partition frame (32) is fixedly arranged on the main shell (31), the outer terminal (43) is fixed through the main shell (31) and the partition frame (32), a plurality of partition grooves (301) are provided on the partition frame (32), one end of the inner terminal (42) close to the outer terminal (43) and one end of the outer terminal (43) close to the inner terminal (42) are both arranged in the partition groove (301), and the plurality of inner terminals (42), the plurality of outer terminals (43) and the plurality of partition grooves (301) correspond to each other one by one.

5. The connection structure of an electronic actuator according to claim 1, characterized in that: The inner terminal (42) comprises a fixing portion (421) and a connecting portion (422), wherein: One end of the fixing portion (421) is fixed and electrically connected to the circuit board (2); One end of the connecting portion (422) is fixed and electrically connected to an end of the fixing portion (421) away from the circuit board (2), and is plugged into and electrically connected to the external terminal (43); The limiting hole (401) includes a through hole (4011) and a supporting hole (4012), wherein: The through hole (4011) is provided on a side of the fixing seat (41) close to the circuit board (2), and the fixing portion (421) passes through the through hole (4011) and is engaged therewith; The abutting hole (4012) is provided on a side of the fixing seat (41) away from the circuit board (2) and is communicated with the through hole (4011); an end of the connecting portion (422) close to the fixing portion (421) is snapped into the abutting hole (4012) and abuts against a side of the abutting hole (4012) close to the through hole (4011).

6. The connection structure of an electronic actuator according to claim 5, characterized in that: A slot (402) is provided at one end of the connection portion (422) away from the circuit board (2), and one end of the external terminal (43) is slidably disposed in the slot (402).

7. The connection structure of an electronic actuator according to claim 6, characterized in that: The slot (402) comprises an opening and closing section (4021) and a clamping section (4022); the opening and closing section (4021) and the clamping section (4022) are both arranged at an end of the connecting portion (422) away from the circuit board (2); the clamping section (4022) is located at an end of the opening and closing section (4021) away from the circuit board (2) and is in communication therewith; the external terminal (43) is slidably arranged in the clamping section (4022) and the opening and closing section (4021), and the external terminal (43) is connected to the clamping section (4022) by interference fit.

8. The connection structure of an electronic actuator according to claim 7, characterized in that: The slot (402) further comprises an easy-insertion section (4023), the easy-insertion section (4023) being arranged at an end of the connecting portion (422) away from the circuit board (2), and being located at an end of the clamping section (4022) away from the circuit board (2), the easy-insertion section (4023) being connected to the clamping section (4022), and the inner diameter of the easy-insertion section (4023) gradually increases along a direction from an end thereof close to the clamping section (4022) to an end thereof away from the clamping section (4022).

9. The connection structure of an electronic actuator according to claim 2, characterized in that: The housing (1) further comprises a sealing ring (13), wherein the sealing ring (13) is fixed in contact with and between the upper cover (12) and the plug (3).

10. The connection structure of an electronic actuator according to claim 9, characterized in that: The housing (1) further comprises a blocking piece (14), wherein the blocking piece (14) is fixedly arranged on the upper cover (12) and abuts against the peripheral side of the plug (3).

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