Controller connection terminal assembly and air suspension system

Abstract

The utility model relates to the technical field of vehicles, and discloses a controller connecting terminal assembly and an air suspension system, and the controller connecting terminal assembly comprises a terminal housing, at least two connecting terminals and a first sealing member. The at least two connecting terminals are fixed to the terminal shell, the first sealing piece is provided with at least two penetrating holes corresponding to the connecting terminals one to one, the connecting terminals penetrate through the corresponding penetrating holes in a sealed mode and are fixed to the terminal shell in a sealed mode through the first sealing piece, and the first sealing piece is an integrally-formed workpiece. Compared with the prior art, the controller connecting terminal has the advantages that the plurality of connecting terminals can be hermetically mounted only by using one first sealing element, so that the plurality of connecting terminals are well sealed, and at least two connecting terminals can be hermetically fixed under the condition that the size of the terminal shell is not changed; the use requirement of a two-phase or three-phase motor terminal is met, the size of an installation hole in a valve block of an air suspension system does not need to be changed, and two-phase and three-phase motors can be compatible.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and in particular to a controller connecting terminal assembly and an air suspension system. Background Art

[0002] In the automobile air suspension system, the motor and the controller PCBA board usually use connecting terminals to transmit signals. The connecting terminals are welded on the PCBA board, and the other end passes through the valve block to contact and connect with the motor terminal. Since the controller cavity and the motor cavity need to be isolated after assembly, a sealing structure needs to be designed. The existing connecting terminals usually have two PIN pins, and each PIN pin is individually sealed in the terminal shell with an O-ring. However, due to the limited space in the terminal shell, when the number of PIN pins increases to three, if they are still sealed with O-rings, it will cause interference between the two; if the size of the terminal shell is increased, the size of the corresponding mounting port on the valve block needs to be changed, and the compatibility is poor.

[0003] Therefore, there is an urgent need for a controller connecting terminal assembly and an air suspension system to solve the above problems. Utility Model Content

[0004] Based on the above problems, the purpose of the present utility model is to provide a controller connecting terminal assembly and an air suspension system, which can achieve sealing and fixation of at least two connecting terminals without changing the size of the terminal shell, thereby improving the compatibility of the controller connecting terminal assembly.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In one aspect, a controller connection terminal assembly is provided, comprising:

[0007] Terminal housing;

[0008] At least two connecting terminals, at least two of the connecting terminals are fixed to the terminal housing;

[0009] The first sealing member is provided with at least two through-holes corresponding to the connecting terminals one by one, the connecting terminals are sealingly penetrated through the corresponding through-holes and are sealed and fixed to the terminal housing through the first sealing member, and the first sealing member is an integrally formed workpiece.

[0010] As a preferred embodiment of the controller connecting terminal assembly of the utility model, the connecting terminal includes a circular conductor and a rectangular conductor, one of the circular conductor and the rectangular conductor is provided with a connecting portion, the connecting portion has a contact surface, and the circular conductor and the rectangular conductor are adhered and connected through the contact surface.

[0011] As a preferred solution of the controller connection terminal assembly of the utility model, the connection portion includes an arc-shaped plate arranged on the rectangular conductor, the contact surface is an inner concave arc-shaped surface of the arc-shaped plate, and the outer peripheral surface of the circular conductor is attached to and connected to the inner concave arc-shaped surface;

[0012] Alternatively, the connecting portion includes a slot provided in the circular conductor, the contact surface is an inner wall surface of the slot, and the rectangular conductor is attached to and connected to the inner wall surface of the slot.

[0013] As a preferred solution of the controller connecting terminal assembly of the utility model, the connecting terminal includes a circular conductor and a rectangular conductor connected to each other, and the circular conductor and the rectangular conductor are integrally formed.

[0014] As a preferred solution of the controller connecting terminal assembly of the utility model, the controller connecting terminal assembly includes a second sealing member sleeved on the terminal housing, and the second sealing member is configured to be in sealing contact with the mounting hole of the valve block of the air suspension system.

[0015] As a preferred solution of the controller connecting terminal assembly of the utility model, a sealing groove is formed on the terminal housing, and the second sealing member is clamped in the sealing groove.

[0016] As a preferred solution of the controller connecting terminal assembly of the utility model, the terminal housing is provided with a mounting cavity, and the first sealing member is sealed and fixed to the mounting cavity.

[0017] As a preferred solution of the controller connecting terminal assembly of the utility model, the cross-sectional shape of the installation cavity is the same as the cross-sectional shape of the first seal, and the cross-sectional shape of the installation cavity and the cross-sectional shape of the first seal are both non-circular.

[0018] As a preferred solution of the controller connecting terminal assembly of the utility model, the connecting terminal is integrally injection-molded with the terminal housing.

[0019] On the other hand, an air suspension system is provided, comprising a motor, a controller, a valve block and the controller connecting terminal assembly as described above, wherein the controller is provided with a control circuit board, the valve block is provided with a mounting hole, one end of the controller connecting terminal assembly is connected to the control circuit board through the connecting terminal, and the other end passes through the mounting hole and is contacted and connected with the terminal of the motor through the connecting terminal.

[0020] The beneficial effects of the utility model are:

[0021] The controller connecting terminal assembly and air suspension system provided by the utility model, since the first sealing member is an integrally formed workpiece, by setting the same number of perforations as the connecting terminals on the first sealing member, at least two connecting terminals can share the first sealing member, thereby sealing and fixing at least two (for example, two or three) connecting terminals to the terminal housing at the same time, and ensuring that multiple connecting terminals are well sealed to seal and isolate the motor cavity and the controller cavity. Compared with the solution in the prior art that each connecting terminal is equipped with a sealing ring to achieve sealed installation, the multiple connecting terminals of the utility model only need to use one first sealing member to achieve sealed installation, so that the sealing and fixing of at least two connecting terminals can be achieved without changing the size of the terminal housing, meeting the use requirements of two-phase or three-phase motor terminals, and further, there is no need to change the size of the mounting hole on the valve block of the air suspension system, and it is compatible with two-phase and three-phase motors. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of a controller connection terminal assembly provided in a specific embodiment of the utility model;

[0024] Figure 2 is a cross-sectional view of a controller connection terminal assembly provided in a specific embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a first sealing member provided in a specific embodiment of the utility model;

[0026] Figure 4 It is a first structural schematic diagram of a connecting terminal provided in a specific embodiment of the utility model;

[0027] Figure 5 yes Figure 4 Right view of;

[0028] Figure 6 It is a second structural schematic diagram of the connecting terminal provided in a specific embodiment of the utility model.

[0029] In the figure:

[0030] 1-terminal housing; 2-connecting terminal; 3-first sealing member; 4-second sealing member;

[0031] 11- first paragraph; 12- second paragraph; 13- third paragraph;

[0032] 111-installation cavity; 121-sealing groove;

[0033] 21-circular conductor; 22-rectangular conductor;

[0034] 211-arc plate; 2111-concave arc surface;

[0035] 31-Piercing. DETAILED DESCRIPTION

[0036] In order to make the technical problems solved by the utility model, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figure 1 and Figure 2 As shown, this embodiment provides a controller connecting terminal assembly, including a terminal housing 1, at least two connecting terminals 2 and a first sealing member 3.

[0040] Among them, see Figure 1 , Figure 2 and Figure 3 At least two connecting terminals 2 are fixed to the terminal housing 1, and the first sealing member 3 is provided with at least two through-holes 31 corresponding to the connecting terminals 2 one by one. The connecting terminals 2 are sealed and penetrated through the corresponding through-holes 31, and are sealed and fixed to the terminal housing 1 through the first sealing member 3, and the first sealing member 3 is an integrally formed workpiece.

[0041] The controller connecting terminal assembly provided in this embodiment, since the first sealing member 3 is an integrally formed workpiece, by setting the same number of perforations 31 as the connecting terminals 2 on the first sealing member 3, at least two connecting terminals 2 can share the first sealing member 3, so that at least two (for example, two or three) connecting terminals 2 can be sealed and fixed to the terminal housing 1 at the same time, and multiple connecting terminals 2 can be ensured to be well sealed to seal and isolate the motor cavity and the controller cavity. Compared with the solution in the prior art that each connecting terminal 2 is equipped with a sealing ring to achieve sealed installation, the multiple connecting terminals 2 of this embodiment only need to use one first sealing member 3 to achieve sealed installation, so that the sealed fixation of at least two connecting terminals 2 can be achieved without changing the size of the terminal housing 1, meeting the use requirements of two-phase or three-phase motor terminals, and further, there is no need to change the size of the mounting hole on the valve block of the air suspension system, and it is compatible with two-phase and three-phase motors.

[0042] For example, see Figure 1 There are three connection terminals 2, and the three connection terminals 2 correspond to the three terminals of the three-phase motor one by one, meeting the signal transmission requirements of the three-phase motor. Figure 3 The first sealing member 3 is provided with three through holes 31 , and the three connecting terminals 2 are correspondingly arranged and connected to the three through holes 31 .

[0043] In other embodiments, two connection terminals 2 may also be provided, and the two connection terminals 2 are in contact and connected with the two terminals of the two-phase motor correspondingly, so as to meet the signal transmission requirements of the two-phase motor.

[0044] Optionally, the first sealing member 3 is integrally formed of rubber material, and the diameter of the through hole 31 can be processed to be slightly smaller than the diameter of the connecting terminal 2 . When the connecting terminal 2 passes through the through hole 31 , the through hole 31 can be elastically deformed, thereby achieving sealed contact between the connecting terminal 2 and the through hole 31 .

[0045] Optionally, the connection terminals 2 are integrally injection molded with the terminal housing 1. That is, the plurality of connection terminals 2 are integrally injection molded with the terminal housing 1, which has a simple processing technology and can ensure that the plurality of connection terminals 2 are firmly fixed in the terminal housing 1.

[0046] Optionally, see Figure 1 and Figure 2The terminal housing 1 is provided with an installation cavity 111, and the first sealing member 3 is sealed and fixed to the installation cavity 111. The installation cavity 111 provides an installation basis for the first sealing member 3, and can seal and fix a plurality of connection terminals 2 to the terminal housing 1, thereby preventing the motor cavity from being connected to the controller cavity due to air holes in the terminal housing 1 due to injection molding or other reasons.

[0047] Optionally, see Figure 1 and Figure 3 The cross-sectional shape of the installation cavity 111 is the same as the cross-sectional shape of the first sealing member 3, and both the cross-sectional shape of the installation cavity 111 and the cross-sectional shape of the first sealing member 3 are non-circular. In this way, the first sealing member 3 can be firmly limited in the installation cavity 111, and the first sealing member 3 can be prevented from shifting back and forth in the installation cavity 111, thereby ensuring the sealing effect.

[0048] Exemplarily, the first sealing member 3 includes three annular ears, which are evenly spaced along the circumferential direction, and each of the annular ears is processed with the above-mentioned through hole 31 .

[0049] Optionally, see Figure 1 and Figure 2 , the controller connection terminal assembly includes a second seal 4 sleeved on the terminal housing 1, and the second seal 4 is configured to be in close contact with the mounting hole of the valve block of the air suspension system. That is, the terminal housing 1 needs to pass through the mounting hole on the valve block so that the connection terminal 2 can be in contact with the terminal of the motor of the air suspension system. By arranging the second seal 4 on the terminal housing 1, the terminal housing 1 can be in sealed contact with the hole wall of the mounting hole, preventing the side cavity where the motor of the air suspension system is located from being connected to the side cavity where the controller of the air suspension system is located, and ensuring that the motor and the controller work normally.

[0050] In an alternative embodiment, Figure 1 and Figure 2 As shown, a sealing groove 121 is provided on the terminal housing 1, and the second sealing member 4 is clamped in the sealing groove 121. By providing the sealing groove 121 on the terminal housing 1, the second sealing member 4 can be pre-clamped in the sealing groove 121. During assembly, the terminal housing 1 only needs to be inserted into the corresponding mounting hole to ensure that the terminal housing 1 is in sealing contact with the hole wall of the mounting hole, thereby reducing the difficulty of assembling the controller connection terminal assembly.

[0051] In another optional implementation scheme, a shaft shoulder may be provided only on the terminal housing 1. During assembly, the second seal 4 is first sleeved on the terminal housing 1. When the terminal housing 1 is inserted into the mounting hole of the valve block, it is necessary to ensure that the second seal 4 is limited between the shaft shoulder and the step surface in the mounting hole.

[0052] Exemplarily, the second sealing member 4 is a rubber sealing ring, and the cross section of the rubber sealing ring is O-shaped. In other embodiments, the rubber sealing ring may also be a sealing ring with an X-shaped cross section, and the X-shaped sealing ring has a better sealing effect.

[0053] Optionally, see Figure 1 and Figure 2 The terminal housing 1 includes a first section 11, a second section 12 and a third section 13 which are connected in sequence. The mounting cavity 111 is arranged in the first section 11, and the sealing groove 121 is arranged in the second section 12. The diameter of the first section 11 is larger than the diameter of the second section 12, and a stop step is formed between the two. The stop step can stop outside the mounting hole of the valve block to limit the installation position of the terminal housing 1; the diameter of the second section 12 is larger than the diameter of the third section 13 to facilitate the processing of the sealing groove 121. The diameter of the third section 13 matches the diameter of the mounting hole to ensure smooth insertion into the mounting hole. In addition, by arranging the mounting cavity 111 in the first section 11 with the largest diameter, the insulation thickness of the terminal housing 1 at various axial positions can be relatively uniform, ensuring the injection molding effect of the connecting terminal 2 in the terminal housing 1.

[0054] Due to assembly requirements, the connection terminal 2 needs to have a cylindrical section and a rectangular section. The cylindrical section is welded to the control circuit board of the controller, and the rectangular section is in contact with the terminal of the motor. In the prior art, the cylindrical section and the rectangular section are usually stacked and directly welded. On the one hand, this welding method will increase the radial size of the welding position, occupy a large space of the terminal housing 1, and is not conducive to the arrangement of multiple connection terminals 2; on the other hand, the area of ​​direct contact between the cylindrical end and the rectangular end is small, which is easy to cause poor contact and affect the signal transmission quality.

[0055] To solve the above problems, in this embodiment, refer to Figure 4 and Figure 6 The connection terminal 2 includes a circular conductor 21 and a rectangular conductor 22. One of the circular conductor 21 and the rectangular conductor 22 is provided with a connection portion, and the connection portion has a contact surface. The circular conductor 21 and the rectangular conductor 22 are attached and connected through the contact surface. By providing the connection portion, the connection position of the circular conductor 21 and the rectangular conductor 22 can be directly attached, the connection is more reliable, and the signal transmission quality can be guaranteed.

[0056] In this embodiment, refer to Figure 4 and Figure 5The connection portion includes an arc plate 211 disposed on the rectangular conductor 22, the contact surface is an inwardly concave arc surface 2111 of the arc plate 211, and the outer peripheral surface of the circular conductor 21 is attached to and connected to the inwardly concave arc surface 2111. The arc plate 211 can be coated on the outer peripheral surface of the circular conductor 21, thereby increasing the contact area between the circular conductor 21 and the rectangular conductor 22, reducing the overall resistance of the connection terminal 2, and improving the signal transmission quality. At the same time, the provision of the arc plate 211 reduces the radial dimension of the connection between the rectangular conductor 22 and the circular conductor 21, thereby reducing the radial installation space required for a single connection terminal 2, and further arranging multiple connection terminals 2 without changing the size of the terminal housing 1, thereby meeting the terminal connection requirements of the three-phase motor.

[0057] Exemplarily, the arc plate 211 can be bent or punched out at the end of the rectangular conductor 22 , the curvature of the arc plate 211 can be adaptively adjusted according to the diameter of the circular conductor 21 , and the arc plate 211 and the circular conductor 21 can be welded or bonded.

[0058] In other embodiments, the connection portion may also include a slot provided on the circular conductor 21, the contact surface being the inner wall surface of the slot, and the rectangular conductor 22 being attached to and connected to the inner wall surface of the slot. That is, by machining a slot having a planar contact surface on the circular conductor 21, the outer surface of the rectangular conductor 22 can stably contact the planar contact surface, thereby increasing the contact area between the rectangular conductor 22 and the circular conductor 21, reducing the overall resistance of the connection terminal 2, and reducing the radial dimension of the connection between the rectangular conductor 22 and the circular conductor 21.

[0059] Exemplarily, the slot may be a rectangular blind hole opened along the axial direction of the circular conductor 21 , or the end of the circular conductor 21 may be cut in half to form a stepped slot, and the stepped surface is the contact surface.

[0060] In a new embodiment, see Figure 6 The connection terminal 2 includes a circular conductor 21 and a rectangular conductor 22 connected to each other, and the circular conductor 21 and the rectangular conductor 22 are integrally formed. With such a configuration, the assembly process (such as welding) can be omitted, and the integrity of the connection terminal 2 can be ensured, the assembly positioning accuracy can be improved, and the signal transmission quality is better. For example, during processing, a cylindrical bar can be processed first, and then one end of the cylindrical bar can be stamped into a rectangle.

[0061] This embodiment also provides an air suspension system, including a motor, a controller, a valve block and the controller connecting terminal assembly as described above, the controller is provided with a control circuit board, the valve block is provided with a mounting hole, one end of the controller connecting terminal assembly is connected to the control circuit board through a connecting terminal 2, and the other end passes through the mounting hole and is connected to the terminal of the motor through the connecting terminal 2.

[0062] In the air suspension system using the controller connecting terminal assembly, since the first seal 3 is an integrally formed workpiece, compared with the prior art, the multiple connecting terminals 2 of this embodiment only need to use one first seal 3 to achieve sealed installation, so that the sealing fixation of at least two connecting terminals 2 can be achieved without changing the size of the terminal housing 1, meeting the use requirements of two-phase or three-phase motor terminals, and there is no need to change the size of the mounting hole on the valve block, and it is compatible with two-phase and three-phase motors.

[0063] By providing an arc plate 211 on the rectangular conductor 22 of the connection terminal 2, and the arc plate 211 can be coated on the outer peripheral surface of the circular conductor 21, the contact area between the circular conductor 21 and the rectangular conductor 22 is increased, the overall resistance of the connection terminal 2 can be reduced, and the signal transmission quality can be improved. At the same time, the provision of the arc plate 211 reduces the radial dimension of the connection between the rectangular conductor 22 and the circular conductor 21, thereby reducing the radial installation space required for a single connection terminal 2, and then multiple connection terminals 2 can be arranged without changing the size of the terminal housing 1, meeting the terminal connection requirements of the three-phase motor.

[0064] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A controller connecting terminal assembly, characterized in that: include: Terminal housing (1); At least two connecting terminals (2), at least two of the connecting terminals (2) being fixed to the terminal housing (1); A first sealing member (3), wherein the first sealing member (3) is provided with at least two through-holes (31) corresponding one to the connecting terminals (2), the connecting terminals (2) are sealingly penetrated through the corresponding through-holes (31), and are sealingly fixed to the terminal housing (1) through the first sealing member (3), and the first sealing member (3) is an integrally formed workpiece.

2. The controller connecting terminal assembly according to claim 1, characterized in that: The connecting terminal (2) comprises a circular conductor (21) and a rectangular conductor (22), one of the circular conductor (21) and the rectangular conductor (22) being provided with a connecting portion, the connecting portion having a contact surface, and the circular conductor (21) and the rectangular conductor (22) being attached and connected via the contact surface.

3. The controller connecting terminal assembly according to claim 2, characterized in that: The connecting portion comprises an arc-shaped plate (211) arranged on the rectangular conductor (22); the contact surface is an inwardly concave arc-shaped surface (2111) of the arc-shaped plate (211); and the outer peripheral surface of the circular conductor (21) is in contact with and connected to the inwardly concave arc-shaped surface (2111); Alternatively, the connecting portion comprises a slot arranged in the circular conductor (21), the contact surface is an inner wall surface of the slot, and the rectangular conductor (22) is attached to and connected to the inner wall surface of the slot.

4. The controller connecting terminal assembly according to claim 1, characterized in that: The connecting terminal (2) comprises a circular conductor (21) and a rectangular conductor (22) which are connected to each other, and the circular conductor (21) and the rectangular conductor (22) are integrally formed.

5. The controller connecting terminal assembly according to claim 1, characterized in that: The controller connection terminal assembly comprises a second sealing member (4) sleeved on the terminal housing (1), and the second sealing member (4) is configured to be in close contact with a mounting hole of a valve block of an air suspension system.

6. The controller connecting terminal assembly according to claim 5, characterized in that: The terminal housing (1) is provided with a sealing groove (121) on its upper ring, and the second sealing member (4) is clamped in the sealing groove (121).

7. The controller connecting terminal assembly according to claim 1, characterized in that: The terminal housing (1) is provided with a mounting cavity (111), and the first sealing member (3) is sealed and fixed in the mounting cavity (111).

8. The controller connecting terminal assembly according to claim 7, characterized in that: The cross-sectional shape of the installation cavity (111) is the same as the cross-sectional shape of the first sealing member (3), and the cross-sectional shape of the installation cavity (111) and the cross-sectional shape of the first sealing member (3) are both non-circular.

9. The controller connecting terminal assembly according to any one of claims 1 to 8, characterized in that: The connecting terminal (2) is integrally injection-molded with the terminal housing (1).

10. Air suspension system, characterized in that, It comprises a motor, a controller, a valve block and a controller connecting terminal assembly as described in any one of claims 1 to 9, wherein the controller is provided with a control circuit board, the valve block is provided with a mounting hole, one end of the controller connecting terminal assembly is connected to the control circuit board through the connecting terminal (2), and the other end passes through the mounting hole and is contacted and connected with the terminal of the motor through the connecting terminal (2).

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