Connecting structure of electronic controller

Abstract

The utility model relates to the technical field of electronic controllers, in particular to a connecting structure of an electronic controller, which comprises a limiting clamping column arranged in a mounting groove for accommodating a PCBA (Printed Circuit Board Assembly), and a connecting hole arranged on the PCBA, the PCBA board is arranged on the limiting clamping columns in a sleeving mode through the connecting holes, and the PCBA board located in the mounting groove can be positioned through the limiting clamping columns. When the PCBA board is connected to the limiting clamping columns in a sleeving mode through the connecting holes, the limiting clamping columns can achieve the positioning effect on the PCBA board, so that the PCBA board cannot move in the mounting groove, the mounting stability of the PCBA board in the mounting groove can be improved, and shaking of the PCBA board is avoided. Certainly, due to the fact that the multiple limiting clamping columns are arranged on the shell, the limiting clamping columns and the shell are formed into a whole, and the strength of the shell can be improved to a certain degree.

Description

Technical Field

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

[0002] With the development of intelligent automobile industry, the application of electronic controller unit is becoming more and more extensive. The electronic controller unit is roughly composed of upper shell, lower shell, solenoid valve coil and PCBA. PCBA and solenoid valve coil are installed in the upper and lower shells to prevent the external environment from damaging the PCBA and protect the function of the electronic control unit.

[0003] However, the connection stability between the various components in the existing electronic control unit is poor, which makes the PCBA easy to shake and the shell strength is insufficient, which easily affects the overall use effect of the electronic control unit and causes performance degradation. Utility Model Content

[0004] In view of the above problems existing in the prior art, the utility model provides a connection structure of an electronic controller.

[0005] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A connection structure of an electronic controller, comprising a limit clamping column arranged in a mounting groove for accommodating a PCBA board, and a connection hole arranged on the PCBA board;

[0007] The PCBA board is sleeved on the limiting clamping column through the connecting hole, and the limiting clamping column can position the PCBA board in the installation groove.

[0008] Preferably, the position-limiting clamping column comprises a plurality of matching columns arranged with gaps;

[0009] The connecting hole can be sleeved outside the limiting clamping column when at least part of the matching columns are in a state of being close to each other.

[0010] Preferably, at least part of the first ends of the matching columns close to the outside of the mounting groove have a larger radial dimension, so that the radial dimension of the first end of the limiting clamping column close to the outside of the mounting groove is larger than the radial dimension of the connecting hole;

[0011] When the first ends of at least some of the matching columns are in a state of being close to each other, the radial dimension of the first end of the limiting clamping column is not greater than the radial dimension of the connecting hole.

[0012] Preferably, at least a portion of the matching columns are provided with a first guide surface on the first end close to the outside of the mounting groove to guide the connecting hole to be sleeved on the outside of the limiting clamping column.

[0013] Preferably, a plurality of support columns for carrying the PCBA board are provided in the mounting groove;

[0014] The support column can cooperate with at least part of the matching column to clamp and position the PCBA board.

[0015] Preferably, at least part of the support columns can form a support area matching the circumferential contour of the PCBA board.

[0016] Preferably, the housing provided with the mounting groove is also provided with a plurality of positioning holes;

[0017] At least part of the positioning holes are provided with steel sleeves, and a positioning bolt can be threadedly connected in the steel sleeves;

[0018] The radial dimension of the head of the positioning bolt is larger than the radial dimension of the positioning hole.

[0019] Preferably, a plurality of fixing blocks are also provided on the shell provided with the mounting groove; a plurality of fixing grooves are provided on the cover plate for covering the mounting groove; the fixing blocks can be interference fit with the fixing grooves to realize fixed installation of the cover plate on the shell.

[0020] Preferably, the plurality of fixing blocks are arranged on the circumferential outer side wall of the shell and / or the circumferential side wall of the mounting groove.

[0021] Preferably, at least part of the fixing block is provided with a second guide surface on the end portion facing the fixing groove to guide the fixing block to be inserted into the fixing groove;

[0022] And / or, at least a portion of the opening of the fixing groove facing the fixing block is provided with a third guide surface to guide the fixing block to be inserted into the fixing groove.

[0023] The utility model has at least the following beneficial effects:

[0024] 1. When the PCBA board is connected to the limit card column through the connection hole, the limit card column can position the PCBA board, so that the PCBA board cannot move in the installation slot, thereby improving the stability of the PCBA board in the installation slot and avoiding the shaking of the PCBA board. Of course, since multiple limit card columns are set on the shell, the limit card columns and the shell are integrated, which can improve the strength of the shell to a certain extent.

[0025] 2. By arranging a steel sleeve in the positioning hole and connecting the positioning bolt through the steel sleeve thread, when the shell is fixedly installed by the positioning bolt, the torque of the positioning bolt can be directly applied to the steel sleeve instead of being transmitted only to the shell, thereby providing a certain protection for the shell and improving the stability of the shell structure.

[0026] 3. Through the interference fit between the fixing block and the fixing groove, the stable installation between the shell and the cover plate can be better achieved. At the same time, the molding process of the fixing block and the fixing groove is less difficult and is not easy to cause damage to the shell structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A first schematic diagram showing the assembly of the housing, PCBA board and cover in some embodiments of the present application is shown;

[0028] Figure 2 A first schematic diagram of a housing in some embodiments of the present application is shown;

[0029] Figure 3 A second schematic diagram of a housing in some embodiments of the present application is shown;

[0030] Figure 4 Shows Figure 3 A partial enlarged view of the middle A;

[0031] Figure 5 A second schematic diagram showing the assembly of the housing, PCBA board and cover in some embodiments of the present application;

[0032] Figure 6 Shows Figure 5 A partial enlarged view of point B in the middle;

[0033] Figure 7 A schematic diagram showing a portion of the positioning bolts on the housing in some embodiments of the present application is shown;

[0034] Figure 8 A schematic diagram showing a trend in which the gap between at least some of the matching columns gradually increases in the direction from the inner end of the mounting groove toward the outer end of the mounting groove in some embodiments of the present application;

[0035] Fig. 9 A schematic diagram showing a trend in which the gap between at least some of the matching columns gradually decreases in the direction from the inner end of the mounting groove toward the outer end of the mounting groove in some embodiments of the present application;

[0036] Fig.10 A schematic diagram showing a PCBA board tilting when installing or removing the PCBA board in some embodiments of the present application is shown;

[0037] Fig.11A schematic diagram showing that in some embodiments of the present application, in a direction from the inner end of the mounting groove toward the outer end of the mounting groove, the gap between at least some of the matching columns tends to gradually decrease, and a blocking portion is formed on at least some of the matching columns;

[0038] Fig.12 A schematic diagram showing a PCBA board clamped by a support column and a blocking portion in some embodiments of the present application is shown;

[0039] Fig.13 A schematic diagram of a PCBA board in some embodiments of the present application is shown.

[0040] The parts indicated by the numbers in the accompanying drawings are as follows:

[0041] 100, shell; 110, mounting groove; 111, limit clamping column; 112, matching column; 112a, blocking portion; 112b, first guide surface; 112c, first matching column; 112d, second matching column; 112e, third matching column; 113, support column; 120, positioning hole; 121, steel sleeve; 122, positioning bolt; 122a, screw portion; 122b, head; 130, fixing block; 131, second guide surface; 140, first gripping portion; 200, cover plate; 210, fixing groove; 211, third guide surface; 220, third gripping portion; 300, PCBA board; 310, connecting hole; 320, second gripping portion. DETAILED DESCRIPTION

[0042] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0043] like Figure 1-2 and Fig.13 As shown, the current electronic controller unit generally includes a shell 100 and a cover plate 200, wherein a mounting groove 110 is provided at one end of the shell 100 in the radial direction, and the mounting groove 110 is used to install components such as the solenoid valve coil and the PCBA board 300, and the cover plate 200 can be connected to the shell 100, so that the cover plate 200 can cover the mounting groove 110, and the cover plate 200 can protect the solenoid valve coil and the PCBA board 300 in the mounting groove 110.

[0044] However, the connection stability between the various components in the current electronic control unit is poor, which makes the PCBA easy to shake and the strength of the housing 100 is insufficient, which easily affects the overall use effect of the electronic control unit and leads to performance degradation.

[0045] Example 1

[0046] In this embodiment, a connection structure of an electronic controller is provided. By optimizing the connection structure of the PCBA board 300 in the mounting groove 110 , the stability of the connection between the housing 100 and the PCBA board 300 can be improved, and shaking of the PCBA board 300 in the mounting groove 110 can be avoided.

[0047] like Figure 2-4 and Fig.13 As shown, the connection structure of the electronic controller includes a limit column 111 provided in the installation slot 110, and a connection hole 310 provided on the PCBA board 300. When assembling the electronic controller, the PCBA board 300 is sleeved on the limit column 111 through the connection hole 310, and then the cover plate 200 is fixedly installed on the housing 100.

[0048] It should be noted that, when the PCBA board 300 is sleeved onto the limiting clamping column 111 through the connecting hole 310, the limiting clamping column 111 can position the PCBA board 300, so that the PCBA board 300 cannot move in the installation slot 110, thereby improving the stability of the PCBA board 300 installed in the installation slot 110 and preventing the PCBA board 300 from shaking. Of course, since a plurality of limiting clamping columns 111 are provided on the housing 100, the limiting clamping columns 111 and the housing 100 are integrated, which can improve the strength of the housing 100 to a certain extent.

[0049] The number of limit posts 111 set in the installation slot 110 can be adjusted during the production process according to the actual needs of use; since the limit posts 111 are used in conjunction with the connecting holes 310, the number of connecting holes 310 on the PCBA board 300 should correspond to the number of limit posts 111 in the installation slot 110. Of course, the number of connecting holes 310 can also be more than the number of limit posts 111, which can reduce the weight of the PCBA board 300 to a certain extent and save the manufacturing cost of the PCBA board 300.

[0050] In some embodiments, Figure 3-4 and Figure 8-11 As shown, each limiting clamping column 111 includes a plurality of matching columns 112, and gaps are set between the plurality of matching columns 112 so that there is a certain movable space between the plurality of matching columns 112, and at least some of the plurality of matching columns 112 can be bent and deformed to a certain extent through the gap.

[0051] Specifically, in the process of installing the PCBA board 300 into the installation slot 110, the PCBA board 300 is first placed at the opening of the installation slot 110, so that the position of the connecting hole 310 on the PCBA board 300 can correspond to the position of the limiting column 111 in the installation slot 110, and then a force is applied to at least part of the matching columns 112 in the limiting column 111, so that at least part of the matching columns 112 can be bent and deformed, so that the gap between at least part of the matching columns 112 becomes smaller, and then at least part of the matching columns 112 are brought closer to each other, so that the radial dimension of the first end of the limiting column 111 close to the outside of the installation slot 110 as a whole becomes smaller, so that the connecting hole 310 can be sleeved on the limiting column 111. After the sleeve, the side wall of at least part of the matching column 112 will squeeze the side wall of the connecting hole 310, and then the cover plate 200 and the shell 100 are assembled to complete the installation and use of the PCBA board 300 in the installation slot 110. When the PCBA board 300 is removed from the installation slot 110, a force is applied to at least some of the matching columns 112 in the limiting column 111, so that at least some of the matching columns 112 can be bent and deformed, so that the gap between at least some of the matching columns 112 becomes smaller, and then at least some of the matching columns 112 are brought closer to each other, so that the radial dimension of the first end of the limiting column 111 close to the outside of the installation slot 110 as a whole becomes smaller, so that the connection hole 310 can be moved out of the limiting column 111, thereby completing the removal of the PCBA board 300 from the installation slot 110.

[0052] It can be known from the above that the purpose of the gap is to realize the bendable deformation of at least part of the matching column 112 itself, so that the radial dimension of the first end of the limiting column 111 as a whole can maintain a trend of changing toward a radial dimension greater than the connecting hole 310, so that after the PCBA board 300 is sleeved on the limiting column 111 through the connecting hole 310, at least part of the matching column 112 can be squeezed with the connecting hole 310, thereby forming a positioning effect on the PCBA board 300.

[0053] It should be noted that there are at least two different ways to arrange the plurality of matching columns 112 in each limiting clamp column 111. Figure 8 and Fig.10 As shown, in the direction from the inner end of the mounting groove 110 to the outer end of the mounting groove 110, the gap between at least some of the matching columns 112 tends to gradually increase, so that the radial dimension of the first end of the limiting column 111 as a whole is greater than the radial dimension of the second end of the limiting column 111 as a whole. It should be noted that, in this state, at least some of the matching columns 112 can push the PCBA board 300 onto the bottom wall of the mounting groove 110, so that the PCBA board 300 is squeezed with the bottom wall of the mounting groove 110 to achieve the positioning of the PCBA board 300; for example, Fig. 9 As shown, in the direction from the inner end of the mounting groove 110 toward the outer end of the mounting groove 110, the gap between at least some of the matching columns 112 tends to gradually decrease, so that the radial dimension of the first end of the limiting column 111 as a whole is smaller than the radial dimension of the second end of the limiting column 111 as a whole. It should be noted that in this state, after the cover plate 200 and the shell 100 are installed, the first end of the limiting column 111 as a whole can push the PCBA board 300 toward the cover plate 200, so that the PCBA board 300 and the cover plate 200 are squeezed to achieve the positioning of the PCBA board 300; no matter whether the radial dimension of the first end of the limiting column 111 as a whole is greater than or smaller than the radial dimension of the second end of the limiting column 111 as a whole, when installing the PCBA board 300, it is also necessary to make at least some of the matching columns 112 bend and be close to each other.

[0054] It is worth mentioning that when the side wall of a part of the matching column 112 presses the side wall of the connecting hole 310, the remaining part of the matching column 112 can play a role in strengthening the strength of the housing 100 and the limiting clamping column 111. Fig.10 As shown, when the limiting card column 111 includes three matching columns 112, wherein the first matching column 112c is located between the second matching column 112d and the third matching column 112e, when in use, the matching activity between the limiting card column 111 and the connecting hole 310 is realized by the bending deformation of the second matching column 112d and the third matching column 112e, and the first matching column 112c is located between the second matching column 112d and the third matching column 112e. Therefore, during the entire disassembly and assembly process of the PCBA board 300, the first matching column 112c does not play a role in the positioning of the PCBA board 300. In this case, since the first matching column 112c is integrated with the shell 100, the strength of the shell 100 can be improved to a certain extent; further, the first matching column 112c can improve the structural strength of the overall limit card column 111. Specifically, when installing or disassembling the PCBA board 300, when the PCBA board 300 is tilted, the connecting hole 310 will apply a force to the second matching column 112d and the third matching column 112e, so that the second matching column 112d and the third matching column 112e are bent. In this process, as the second matching column 112c is As the bending degree of the column 112d and the third matching column 112e increases, the second matching column 112d and the third matching column 112e will abut against the first matching column 112c, and then the first matching column 112c can support the second matching column 112d and the third matching column 112e to resist the continued bending of the second matching column 112d and the third matching column 112e, which can avoid the breakage of the second matching column 112d and the third matching column 112e due to the tilt of the PCBA board 300 during the disassembly and assembly of the PCBA board 300.

[0055] In some embodiments, Figure 3-4 and Fig.11 As shown, at least part of the first end of the mating column 112 itself, which is close to the outside of the installation groove 110, has a larger radial dimension to form a stopper 112a, so that in the natural state, the radial dimension of the first end of the limiting clamp column 111 as a whole is larger than the radial dimension of the connecting hole 310. During the installation of the PCBA board 300, a force is applied to at least some of the matching columns 112 of the limiting column 111, so that the gap between at least some of the matching columns 112 is reduced, so that at least some of the matching columns 112 are close to each other, and then the radial dimension of the first end of the limiting column 111 as a whole becomes smaller. At this time, the radial dimension of the first end of the limiting column 111 as a whole is not greater than the radial dimension of the connecting hole 310, so that the PCBA board 300 can be sleeved on the limiting column 111 through the connecting hole 310; after the sleeve connection, the blocking portion 112a of at least some of the matching columns 112 passes through the connecting hole 310. Under the action of the gap, the blocking portion 112a of at least some of the matching columns 112 has a tendency to move relatively away, so that the blocking portion 112a of at least some of the matching columns 112 can resist the PCBA board 300, so as to achieve the limiting effect on the PCBA board 300.

[0056] Combined with the above explanation, Fig.11 As shown, in the direction from the inner end of the mounting groove 110 toward the outer end of the mounting groove 110, when the gap between at least some of the matching columns 112 tends to gradually decrease, at least some of the matching columns 112 can push the PCBA board 300 toward the blocking portion 112a on at least some of the matching columns 112, so that the PCBA board 300 is squeezed with the blocking portion 112a to achieve the positioning effect of the PCBA board 300; in the direction from the inner end of the mounting groove 110 toward the outer end of the mounting groove 110, when the gap between at least some of the matching columns 112 tends to gradually increase, at least some of the matching columns 112 push the PCBA board 300 to the bottom of the mounting groove 110. Although the PCBA board 300 will not be squeezed with the blocking portion 112a, the blocking portion 112a can still limit the PCBA board 300 to prevent the PCBA board 300 from escaping from the limiting column 111.

[0057] In some embodiments, Figure 3-4 and Fig.12 As shown, at least a first guide surface 112 b is provided on the first end of a portion of the matching pillars 112 , and the first guide surface 112 b can assist and guide the PCBA board 300 to be sleeved outside the limiting clamping pillar 111 through the connecting hole 310 .

[0058] It is understandable that the first guide surface 112 b can be formed by chamfering the first end of the mating column 112 , wherein the chamfering can be a chamfer or a rounded corner.

[0059] Specifically, when the resisting portion 112a is not formed on the mating column 112, the first guide surface 112b is arranged on the circumferential side edge of the first end of the mating column 112; when the resisting portion 112a is formed on the mating column 112, the first guide surface 112b is arranged on the circumferential side edge of the resisting portion 112a near the outside of the mounting groove 110.

[0060] During the process of installing the PCBA board 300 into the installation slot 110, the PCBA board 300 is first moved outside the installation slot 110 so that the position of the connecting hole 310 can correspond to the position of the limiting column 111 one by one, and then the PCBA board 300 is moved toward the direction of the installation slot 110. During this process, the connecting hole 310 can move and abut against the first guide surface 112b. By applying a force to the PCBA board 300, the connecting hole 310 can squeeze at least part of the matching column 112 through the first guide surface 112b. Under the guidance of the first guide surface 112b, the first ends of at least part of the matching columns 112 can approach each other to reduce the gap, thereby reducing the radial size of the first end of the limiting column 111 as a whole to match the connecting hole 310, so that the connecting hole 310 can be sleeved on the limiting column 111, and finally the cover plate 200 and the shell 100 can be assembled.

[0061] In some embodiments, Figure 2-4 As shown, a plurality of support columns 113 are provided on the bottom wall and / or the circumferential side wall of the installation groove 110 , and the support columns 113 can bear the PCBA board 300 to improve the stability of the PCBA board 300 when installed and used in the installation groove 110 .

[0062] When the gap between at least some of the matching columns 112 gradually increases in the direction from the inner end of the mounting groove 110 toward the outer end of the mounting groove 110, Figure 8 As shown, after the PCBA board 300 is sleeved on the limiting clamping column 111 through the connecting hole 310, at least part of the matching column 112 can push the PCBA board 300 toward the supporting column 113, so that the PCBA board 300 and the supporting column 113 are squeezed. In this state, at least part of the side wall of the matching column 112 and the supporting column 113 form a clamping effect on the PCBA board 300, thereby realizing the positioning and use of the PCBA board 300 in the installation groove 110.

[0063] When in a natural state, the overall radial dimension of the limiting column 111 remains consistent. At this time, the first end of at least part of the matching column 112 is set to form a stopper 112a, and the distance between the side wall of the stopper 112a close to the inner end of the installation groove 110 and the side wall of the support column 113 close to the outer end of the installation groove 110 is further set to be equal to the thickness dimension of the PCBA board 300. When installing the PCBA board 300, the PCBA board 300 is sleeved on the limiting column 111 through the connecting hole 310. When the PCBA board 300 contacts the support column 113, the stopper 112a of at least part of the matching column 112 passes through the connecting hole 310. At this time, the stopper 112a of at least part of the matching column 112 is relatively far away, so that the stopper 112a is clamped to the PCBA board 300. In this state, the stopper 112a and the support column 113 form a clamping effect on the PCBA board 300, so as to realize the positioning and installation of the PCBA board 300. Fig.12 shown.

[0064] In some embodiments, Figure 2 As shown, at least some of the multiple support columns 113 arranged in the mounting groove 110 can form a support area that matches the circumferential profile of the PCBA board 300, thereby providing better and more uniform support for the PCBA board 300 and improving the stability of the PCBA board 300 when installed and used in the mounting groove 110.

[0065] Example 2

[0066] like Figure 1 and Figure 7 As shown, this embodiment is further optimized on the basis of Embodiment 1, and provides a connection structure of an electronic controller. By optimizing the positioning hole 120 on the shell 100 that matches the positioning bolt 122, it is possible to avoid the torque of the positioning bolt 122 being directly applied to the shell 100 structure, causing the instability of the shell 100 structure and reduced performance.

[0067] The connection structure of the electronic controller includes a plurality of positioning holes 120 arranged on the outer wall of the shell 100 in the circumferential direction, and a steel sleeve 121 is arranged in at least some of the plurality of positioning holes 120. The shell 100 is directly sleeved on the steel sleeve 121 through the positioning holes 120. Specifically, the steel sleeve 121 has a threaded hole passing through the steel sleeve 121, and a positioning bolt 122 can be threadedly connected in the threaded hole.

[0068] Furthermore, the housing 100 is fixedly installed on other components by means of positioning bolts 122 for use. In this embodiment, a steel sleeve 121 is provided in the positioning hole 120, and the positioning bolts 122 are threadedly connected to the steel sleeve 121, so that when the housing 100 is fixedly installed by means of the positioning bolts 122, the torque of the positioning bolts 122 can be directly applied to the steel sleeve 121, and will not be transmitted to the housing 100, thereby providing a certain degree of protection for the housing 100 and improving the structural stability of the housing 100.

[0069] Furthermore, the positioning bolt 122 has a screw portion 122a and a head 122b, wherein the positioning bolt 122 is threadedly connected to the steel sleeve 121 through the screw portion 122a, and the radial dimension of the head 122b of the positioning bolt 122 is larger than the radial dimension of the positioning hole 120, so that the positioning bolt 122 can squeeze the shell 100 through the head 122b, thereby pressing the shell 100 against other components.

[0070] Example 3

[0071] This embodiment is further optimized on the basis of Embodiment 1 or Embodiment 2, and provides a connection structure of an electronic controller. By optimizing the connection structure between the shell 100 and the cover plate 200, the stability of the connection between the shell 100 and the cover plate 200 can be better improved, and the use effect and performance can be optimized.

[0072] like Figure 3-6 As shown, the connection structure of the electronic controller includes a plurality of fixing blocks 130 arranged on the shell 100, and a plurality of fixing grooves 210 arranged on the cover plate 200, wherein the size of the fixing block 130 is slightly larger than the size of the fixing groove 210, so that the fixing block 130 can be inserted into the fixing groove 210 to achieve an interference fit between the fixing block 130 and the fixing groove 210, thereby achieving a fixed connection between the shell 100 and the cover plate 200.

[0073] During the assembly of the shell 100 and the cover plate 200 , the fixing block 130 on the shell 100 is aligned with the fixing groove 210 on the cover plate 200 , and then the cover plate 200 is pressed onto the shell 100 so that the fixing block 130 is inserted into the fixing groove 210 .

[0074] It should be noted that the interference fit between the fixing block 130 and the fixing groove 210 can better achieve stable installation between the shell 100 and the cover plate 200. At the same time, the molding process of the fixing block 130 and the fixing groove 210 is less difficult and is not easy to cause damage to the shell 100 structure.

[0075] In some embodiments, the fixing block 130 can be set on the outer side wall of the shell 100 in the circumferential direction, or on the circumferential side wall of the mounting groove 110, without special limitation. Accordingly, the position of the fixing groove 210 on the cover plate 200 needs to correspond to the position of the fixing block 130.

[0076] In some embodiments, a second guide surface 131 is provided on at least part of the end of the fixing block 130 facing the fixing groove 210. The second guide surface 131 can be formed by chamfering, and the chamfer can be a chamfered angle or a rounded angle. Through the provision of the second guide surface 131, the fixing block 130 can be preferably guided to align with the fixing groove 210, so as to facilitate the alignment and installation between the housing 100 and the cover plate 200.

[0077] Furthermore, a third guide surface 211 may be provided at least partially at the opening of the fixing groove 210 toward the fixing block 130. The third guide surface 211 may be formed by chamfering, and the chamfer may be a chamfered angle or a rounded angle. By providing the third guide surface 211, the fixing block 130 may be preferably guided to align with the fixing groove 210, so as to facilitate the alignment and installation between the housing 100 and the cover plate 200.

[0078] Example 4

[0079] This embodiment is an improvement based on any one of Embodiments 1-3.

[0080] like Figure 1-2 , Figure 3 , Figure 5 , Figure 7 and Fig.13 As shown, in this embodiment, first gripping portions 140 recessed inwardly are formed on two symmetrical sides of the housing 100 , and the first gripping portions 140 are convenient for workers to take and use, and are easy to operate.

[0081] Furthermore, second gripping portions 320 recessed inwardly are formed on both symmetrical sides of the PCBA board 300 , and the second gripping portions 320 are convenient for workers to take and use, and are easy to operate.

[0082] It should be noted that, through the provision of the first grip portion 140 and the second grip portion 320, during the process of installing the PCBA board 300 into the mounting groove 110, the staff can better operate the movable housing 100 and the PCBA board 300 through the first grip portion 140 and the second grip portion 320, which facilitates the application of force and can also improve the stability of holding.

[0083] Similarly, third gripping portions 220 recessed inwardly are formed on two symmetrical sides of the cover plate 200 . The third gripping portion 220 can play the same role as the first gripping portion 140 and the second gripping portion 320 , and will not be described in detail herein.

[0084] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A connection structure of an electronic controller, characterized in that: It includes a limit clamping column arranged in a mounting groove for accommodating a PCBA board, and a connecting hole arranged on the PCBA board; The PCBA board is sleeved on the limiting clamping column through the connecting hole, and the limiting clamping column can position the PCBA board in the installation groove.

2. The connection structure of the electronic controller according to claim 1, characterized in that: The position-limiting clamping column comprises a plurality of matching columns provided with gaps; The connecting hole can be sleeved outside the limiting clamping column when at least part of the matching columns are in a state of being close to each other.

3. The connection structure of the electronic controller according to claim 2, characterized in that: At least a portion of the first ends of the matching columns close to the outside of the mounting groove have a larger radial dimension, so that the radial dimension of the first end of the limiting clamping column close to the outside of the mounting groove is larger than the radial dimension of the connecting hole; When the first ends of at least some of the matching columns are in a state of being close to each other, the radial dimension of the first end of the limiting clamping column is not greater than the radial dimension of the connecting hole.

4. The connection structure of the electronic controller according to claim 2 or 3, characterized in that: A first guide surface is provided on the first end of at least part of the matching pillars close to the outside of the mounting groove to guide the connecting hole to be sleeved on the outside of the limiting clamping pillar.

5. The connection structure of the electronic controller according to claim 3, characterized in that: A plurality of support columns for carrying the PCBA board are provided in the mounting groove; The support column can cooperate with at least part of the matching column to clamp and position the PCBA board.

6. The connection structure of the electronic controller according to claim 5, characterized in that: At least part of the support columns can form a support area matching the circumferential contour of the PCBA board.

7. The connection structure of the electronic controller according to claim 1, characterized in that: The housing provided with the mounting groove is also provided with a plurality of positioning holes; At least part of the positioning holes are provided with steel sleeves, and a positioning bolt can be threadedly connected in the steel sleeves; The radial dimension of the head of the positioning bolt is larger than the radial dimension of the positioning hole.

8. The connection structure of the electronic controller according to claim 1 or 7, characterized in that: The shell provided with the installation groove is also provided with a plurality of fixing blocks; the cover plate used to cover the installation groove is provided with a plurality of fixing grooves; the fixing blocks can be interference fit with the fixing grooves to achieve fixed installation of the cover plate on the shell.

9. The connection structure of the electronic controller according to claim 8, characterized in that: The plurality of fixing blocks are arranged on the circumferential outer side wall of the shell and / or the circumferential side wall of the mounting groove.

10. The connection structure of the electronic controller according to claim 8, characterized in that: At least part of the fixing block is provided with a second guide surface on the end portion facing the fixing groove to guide the fixing block to be inserted into the fixing groove; And / or, at least a portion of the opening of the fixing groove facing the fixing block is provided with a third guide surface to guide the fixing block to be inserted into the fixing groove.

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