Sensor fixing structure

Abstract

The utility model relates to the technical field of vehicles, in particular to a sensor fixing structure which comprises a connecting plate provided with PINs, a bearing plate provided with a chip and an installation support capable of being fixedly installed on a valve block. And the bearing plate can be inserted and fixed on the mounting bracket. According to the invention, the PINs and the chip are respectively arranged on the connecting plate and the bearing plate, so that the connecting plate can play a better role in supporting the PINs, and the bearing plate can play a better role in supporting the chip. Due to the fact that the installation support can be fixedly installed on the valve block, after the bearing plate is fixed to the installation support in an inserted connection mode, fixed installation of the bearing plate and the chip on the valve block can be well achieved. Namely, through the arrangement of the connecting plate, the bearing plate and the mounting bracket, the stability of mounting and connecting among the PIN needle, the chip and the valve block can be improved, and the stability of the positions among the PIN needle, the chip and the valve block can be ensured when the vehicle vibrates, so that the sensor can be better matched with the valve block for use.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, and specifically, to a sensor fixing structure. Background Art

[0002] In general, valve blocks in one-box, two-box and other braking pressure building units and pressure regulating units such as ESC and ABS can cooperate with sensors with certain functions. Due to the complex structure of the valve block itself, the sensor is usually fixedly installed outside the valve block.

[0003] A sensor generally includes PIN pins and a chip that are electrically connected. Stable connections among the PIN pins, the chip and the valve block are required to ensure the normal use of the sensor.

[0004] However, vibrations are inevitably generated during the operation of the vehicle, and the vibrations are likely to affect the connections among the PIN pins, the chip and the valve block, thereby affecting the signal transmission of the sensor. Summary of the Utility Model

[0005] In view of the above problems existing in the prior art, the utility model provides a sensor fixing structure.

[0006] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A sensor fixing structure includes a connecting plate provided with PIN pins, a bearing plate provided with a chip, and a mounting bracket that can be fixedly installed on the valve block; the bearing plate can be inserted and fixed on the mounting bracket.

[0008] Preferably, a flexible circuit board is adopted for the connection line between the PIN pins and the chip.

[0009] Preferably, the mounting bracket is provided with a mounting cavity that can accommodate the bearing plate and the chip, and a plug-in groove for the bearing plate to extend into is provided on the side wall of the mounting cavity.

[0010] Preferably, at least one of the mounting cavity and the plug-in groove is provided with a first clamping portion, and the bearing plate is provided with a second clamping portion that can be clamped and matched with the first clamping portion.

[0011] Preferably, at least part of the mounting cavity between the connecting plate and the bearing plate is provided with a transition surface, and the transition surface can lead out the connection line between the PIN pins and the chip from the mounting cavity.

[0012] Preferably, a limiting member is provided on the mounting bracket and at least on one side of the flexible circuit board, and the limiting member can keep the flexible circuit board in a state close to the mounting bracket.

[0013] Preferably, a first through hole is provided on the valve block, and the mounting bracket is inserted and fixed in the first through hole in an interference fit manner.

[0014] Preferably, a housing is connected to the valve block, and the connecting plate and the mounting bracket can be fixedly installed on the housing.

[0015] Preferably, a second through hole is provided on the housing, and the connecting plate is inserted and fixed in the second through hole in an interference fit manner.

[0016] Preferably, a socket hole is provided on the housing, and the mounting bracket can be snap-fitted and fixed in the socket hole.

[0017] The utility model has at least the following beneficial effects:

[0018] In this application, by separately arranging the PIN pins and the chip on the connecting plate and the carrier plate, the connecting plate can provide a better supporting effect on the PIN pins, and the carrier plate can provide a better supporting effect on the chip. Since the mounting bracket can be fixedly installed on the valve block, after the carrier plate is inserted and fixed on the mounting bracket, the fixed installation of the carrier plate and the chip on the valve block can be better realized. That is, through the arrangement of the connecting plate, the carrier plate and the mounting bracket, the stable cooperation among the PIN pins, the chip and the valve block can be better realized, the stability of the installation connection among the PIN pins, the chip and the valve block can be improved, and when the vehicle vibrates, the stability of the positions among the PIN pins, the chip and the valve block can also be ensured, so that the sensor can be better used in cooperation with the valve block. Description of the Drawings

[0019] Figure 1 Shows a cross-sectional view of the assembled sensor and valve block in some embodiments of the present application;

[0020] Figure 2 Shows a cross-sectional view of the assembled sensor and valve block with the control board hidden in some embodiments of the present application;

[0021] Figure 3 Shows a cross-sectional view of the assembled sensor and valve block with the control board and the housing hidden in some embodiments of the present application;

[0022] Figure 4 Shows a cross-sectional view of the assembled sensor, housing and control board in some embodiments of the present application;

[0023] Figure 5 Shows a schematic assembly diagram of the sensor and the mounting bracket in some embodiments of the present application;

[0024] Figure 6The figure shows a schematic diagram of the connection between the PIN pins and the chip through a flexible circuit board in some embodiments of the present application;

[0025] Figure 7 The figure shows a schematic diagram of the mounting bracket in some embodiments of the present application.

[0026] The names of the parts referred to by the respective numerical labels in the drawings are as follows:

[0027] 100, valve block; 110, first through hole; 200, housing; 210, control board; 220, second through hole; 221, clamping groove; 230, insertion hole; 310, PIN pin; 320, chip; 400, connecting plate; 500, carrier plate; 510, second clamping part; 600, mounting bracket; 610, mounting cavity; 611, insertion groove; 612, first clamping part; 613, transition surface; 613a, boss; 620, limiting part; 630, rib; 640, wire groove; 650, operation port; 700, flexible circuit board. Detailed implementation manners

[0028] To further understand the content of the present invention, the present invention will be described in detail with reference to the drawings and embodiments. It should be understood that the embodiments are only for explaining the present invention and not for limiting it.

[0029] In braking pressure building units such as One - box and Two - box, and pressure regulating units such as ESC and ABS, a valve block 100 is provided. An outer housing 200 is provided on the valve block 100, and a control board 210 is provided on the outer housing 200. The valve block 100 generally can be used in cooperation with a sensor having certain functions. Due to the complex structure of the valve block 100 itself, the sensor is usually fixedly installed outside the valve block 100. The sensor generally includes electrically connected PIN pins 310 and a chip 320. Among them, the PIN pins 310 are connected to the control board 210 by welding and interference fit. Stable connections between the PIN pins 310, the chip 320, and the valve block 100 are required to ensure the normal use of the sensor. However, vibrations will inevitably occur during the operation of the vehicle, and the vibrations are likely to affect the connections between the PIN pins 310, the chip 320, and the valve block 100, thereby affecting the signal transmission of the sensor.

[0030] In view of the above problems, in combination with Figure 1-7As shown in the figure, in this embodiment, a sensor fixing structure is provided, which includes a connecting plate 400, a bearing plate 500, and a mounting bracket 600. Among them, PIN pins 310 are arranged on the connecting plate 400, and a chip 320 is arranged on the bearing plate 500. During use, the bearing plate 500 is fixed to the mounting bracket 600 in a plug-in manner, and then the mounting bracket 600 is fixedly installed on the valve block 100. After that, the PIN pins 310 on the connecting plate 400 are connected to the control board 210 by welding and interference fit, so as to complete the installation and use of the sensor.

[0031] It can be understood that by arranging the PIN pins 310 and the chip 320 on the connecting plate 400 and the bearing plate 500 respectively, the connecting plate 400 can provide a better supporting effect on the PIN pins 310, and the bearing plate 500 can provide a better supporting effect on the chip 320. Since the mounting bracket 600 can be fixedly installed on the valve block 100, after the bearing plate 500 is fixed to the mounting bracket 600 in a plug-in manner, the bearing plate 500 and the chip 320 can be better fixed and installed on the valve block 100. That is to say, through the arrangement of the connecting plate 400, the bearing plate 500, and the mounting bracket 600, the stable cooperation among the PIN pins 310, the chip 320, and the valve block 100 can be better realized, the stability of the installation connection among the PIN pins 310, the chip 320, and the valve block 100 can be improved, and when the vehicle vibrates, the stability of the positions among the PIN pins 310, the chip 320, and the valve block 100 can also be ensured, so that the sensor can be better matched with the valve block 100 for use.

[0032] In some embodiments, the PIN pins 310 and the chip 320 are connected by a connection line to realize the signal transmission between the PIN pins 310 and the chip 320. Among them, the connection line uses a flexible printed circuit board 700, and both ends of the flexible printed circuit board 700 are respectively connected to the connecting plate 400 and the bearing plate 500, so as to realize the connection between the PIN pins 310 and the chip 320 through the flexible printed circuit board 700 and realize signal transmission.

[0033] It should be noted that in some cases, the vehicle will vibrate. At this time, the PIN pins 310 will generate certain vibrations driven by the control board 210 and / or the chip 320 will generate certain vibrations driven by the valve block 100. Since the PIN pins 310 and the chip 320 are connected through the flexible printed circuit board 700, the flexible printed circuit board 700 can bend within a certain space, so as to better adapt to the vibrations of the PIN pins 310 and / or the chip 320, and can better maintain the stable connection between the PIN pins 310 and the chip 320, so that a stable signal transmission can be maintained between the PIN pins 310 and the chip 320, and the normal cooperation between the sensor and the valve block 100 can be ensured.

[0034] In some embodiments, an installation cavity 610 is provided at one end of the installation bracket 600. The space of the installation cavity 610 can completely accommodate the carrier plate 500 and the chip 320. Among them, a plug-in slot 611 is provided on the side wall of the installation cavity 610, and the side of the carrier plate 500 can be inserted into the plug-in slot 611.

[0035] When the carrier plate 500 provided with the chip 320 is plugged and fixed on the installation bracket 600, the carrier plate 500 is moved towards the inside of the installation cavity 610. During this process, the side of the carrier plate 500 is aligned with the plug-in slot 611, so that as the carrier plate 500 moves, the side of the carrier plate 500 can extend into the plug-in slot 611. When the carrier plate 500 and the chip 320 are completely in the installation cavity 610, the fixed installation of the carrier plate 500 on the installation bracket 600 is realized.

[0036] It can be understood that by providing the installation cavity 610 and extending the carrier plate 500 and the chip 320 into the installation cavity 610, the hidden installation of the carrier plate 500 and the chip 320 on the installation bracket 600 can be realized, so that the installation bracket 600 can play a protective role for the carrier plate 500 and the chip 320 externally, avoiding abrasion or collision between the carrier plate 500 and the chip 320 and other devices when the vehicle vibrates. And by providing the plug-in slot 611 in the installation cavity 610, after installation, the side of the carrier plate 500 can be plugged into the plug-in slot 611, so that the plug-in slot 611 can limit the carrier plate 500 in the installation cavity 610, and further realize the limitation of the chip 320 on the carrier plate 500, so that the positions of the carrier plate 500 and the chip 320 in the installation cavity 610 are relatively fixed. When the vehicle vibrates, the carrier plate 500 and the chip 320 can still be stably in the installation cavity 610, and the carrier plate 500 and the chip 320 will not rub or collide with the side wall of the installation cavity 610, which can preferably protect the chip 320 and enable the chip 320 to maintain normal signal transmission with the PIN pins 310.

[0037] Furthermore, there can be an interference fit between the side of the carrier plate 500 and the plug-in slot 611. After the side of the carrier plate 500 extends into the plug-in slot 611, the fixing of the carrier plate 500 in the installation cavity 610 can be preferably realized, and the stability of the connection between the carrier plate 500 and the chip 320 on the installation bracket 600 can be improved.

[0038] In some embodiments, a first clamping portion 612 is provided on at least one of the mounting cavity 610 and the plug-in slot 611, and a second clamping portion 510 is provided on the carrier plate 500. When the carrier plate 500 is installed in the mounting cavity 610, the first clamping portion 612 and the second clamping portion 510 can be engaged with each other, thereby achieving a fixed connection of the carrier plate 500 on the mounting bracket 600, thereby improving the stability of the chip 320 installed on the mounting bracket 600 through the carrier plate 500.

[0039] Combination Figure 6-7 As shown, the first clamping portion 612 is a convex block with a semicircular cross section, and the second clamping portion 510 is a concave groove with a semicircular cross section, and the first clamping portion 612 is set in the installation cavity 610 as an example; during installation, the carrier plate 500 is moved toward the direction of the installation cavity 610, so that the side of the carrier plate 500 extends into the plug-in groove 611, and then the carrier plate 500 is moved deeper into the installation cavity 610. When the side of the carrier plate 500 moves to the innermost end of the plug-in groove 611, the convex block and the groove are connected by a clamping connection, and the carrier plate 500 and the chip are connected. 320 is completely in the installation cavity 610; at this time, with the cooperation of the protrusion and the groove, the carrier plate 500 is limited in the length direction of the plug-in slot 611, so that the carrier plate 500 cannot be moved out of the plug-in slot 611 in the reverse direction, thereby fixing the position of the carrier plate 500 in the installation cavity 610, and the carrier plate 500 will not be separated from the plug-in slot 611 even if the vehicle vibrates, which can better improve the stability of the connection between the carrier plate 500 and the chip 320 on the installation bracket 600, so that the chip 320 can maintain normal signal transmission with the PIN pin 310.

[0040] In some embodiments, after the chip 320 is installed in the mounting cavity 610 through the carrier plate 500, since the mounting cavity 610 is at one end of the mounting bracket 600, the carrier plate 500 is also at one end of the mounting bracket 600, and the connecting plate 400 provided with the PIN needle 310 extends to the other end of the mounting bracket 600 through the flexible circuit board 700. After the mounting bracket 600 is fixedly installed on the valve block 100, the PIN needle 310 on the connecting plate 400 is fixedly connected to the control board 210.

[0041] Furthermore, at least part of the installation cavity 610 between the connecting plate 400 and the carrier plate 500 is provided with a transition surface 613. After the carrier plate 500 is installed in the installation cavity 610, the transition surface 613 can lead the flexible circuit board 700 between the connecting plate 400 and the carrier plate 500 out of the installation cavity 610.

[0042] Further, the transition surface 613 can be arranged on the opening side edge of the installation cavity 610, so that the opening side edge of the installation cavity 610 has a certain slope, enabling the flexible circuit board 700 to extend out of the installation cavity 610 with a bending amplitude greater than 90 degrees.

[0043] Combined Figure 7 As shown, a boss 613a can also be arranged in the installation cavity 610. A transition surface 613 is arranged at one end of the boss 613a close to the flexible circuit board 700. That is to say, one end of the boss 613a close to the flexible circuit board 700 has a certain slope, enabling the flexible circuit board 700 to extend out of the installation cavity 610 with a bending amplitude greater than 90 degrees.

[0044] Particularly, through the arrangement of the transition surface 613, on the one hand, the flexible circuit board 700 can extend out of the installation cavity 610 with a bending amplitude greater than 90 degrees, and on the other hand, it can also prevent the flexible circuit board 700 from rubbing against the right-angle edge or being bent at 90 degrees. Through the arrangement of the transition surface 613, the flexible circuit board 700 can be better protected, thereby ensuring stable signal transmission between the PIN pins 310 and the chip 320.

[0045] In some embodiments, a limiting member 620 is arranged at the middle position of the installation bracket 600. In the installed state, the flexible circuit board 700 between the connecting plate 400 and the bearing plate 500 is located between the limiting member 620 and the installation bracket 600. That is to say, the limiting member 620 can play a certain limiting role on the flexible circuit board 700. Since the flexible circuit board 700 has the characteristic of being bendable and has a certain length, the limiting member 620 at the middle position of the installation bracket 600 can limit the middle part of the flexible circuit board 700, so that the middle part of the flexible circuit board 700 can only move or bend within a certain range from the installation bracket 600, thereby improving the stability of the position of the flexible circuit board 700. That is to say, the limiting member 620 can keep the flexible circuit board 700 close to the installation bracket 600, and the flexible circuit board 700 will not be too far away from the installation bracket 600.

[0046] Further, arranging the limiting member 620 on at least one of the left and right sides in the length direction of the flexible circuit board 700 can further improve the limiting effect on the flexible circuit board 700 and improve the stability of the position state between the flexible circuit board 700 and the installation bracket 600.

[0047] Further, the overall shape of the limiting member 620 arranged on the installation bracket 600 can be L-shaped or semi-circular arc-shaped, as long as it can play a certain limiting role on the flexible circuit board 700, and no special limitation is made in this regard.

[0048] In some embodiments, a first through hole 110 is provided on the valve block 100, and one end of the mounting bracket 600 is inserted and fixed in the first through hole 110 in an interference fit manner.

[0049] Specifically, the size of one end of the mounting bracket 600 is slightly smaller than the size of the first through hole 110. A plurality of protrusions 630 are provided on the outer side wall of one end of the mounting bracket 600, and the size of the protrusions 630 is slightly larger than the dimensional difference between the mounting bracket 600 and the first through hole 110. Therefore, by providing a plurality of protrusions 630 on one end of the mounting bracket 600, an interference fit between one end of the mounting bracket 600 and the first through hole 110 can be achieved.

[0050] Furthermore, a wire groove 640 is also provided on one end of the mounting bracket 600, and the wire groove 640 communicates with the mounting cavity 610. When one end of the mounting bracket 600 is inserted into the first through hole 110 in an interference fit manner, the flexible circuit board 700 on the carrier plate 500 can extend out of the mounting cavity 610 and into the wire groove 640 under the guidance of the transition surface 613, and the flexible circuit board 700 can extend out of the first through hole 110 through the wire groove 640.

[0051] Furthermore, an operation port 650 is also provided on the outer side wall of one end of the mounting bracket 600, and the operation port 650 facilitates the staff to take and apply pulling force or pushing force, etc., which is convenient for the staff to use. For example, when it is necessary to pull out one end of the mounting bracket 600 from the first through hole 110, the staff can apply a pulling force to one end of the mounting bracket 600 through the operation port 650.

[0052] In some embodiments, the other end of the connecting plate 400 and the mounting bracket 600 can be fixedly installed on the housing 200.

[0053] It can be understood that since the chip 320 is fixedly installed on the mounting bracket 600 through the carrier plate 500, and the mounting bracket 600 is fixedly installed on the valve block 100. At this time, further fixing the PIN pin 310 on the housing 200 through the connecting plate 400 and fixing the other end of the mounting bracket 600 on the housing 200 can further improve the stability of the relative positions among the PIN pin 310, the chip 320, and the valve block 100, and improve the connection stability among the PIN pin 310, the chip 320, and the valve block 100, thereby ensuring stable signal transmission between the PIN pin 310 and the chip 320.

[0054] In some embodiments, a second through hole 220 is provided on the housing 200, and the connecting plate 400 is inserted and fixed in the second through hole 220 in an interference fit manner.

[0055] Specifically, a clamping groove 221 is provided on the side wall of the second through hole 220, and the side of the connecting plate 400 can extend into the clamping groove 221. During installation, the connecting plate 400 is inserted into the second through hole 220, so that the PIN pins 310 on the connecting plate 400 can pass through the second through hole 220 and reach the welding position with the control board 210. During this process, the side of the connecting plate 400 extends into and is clamped in the clamping groove 221, realizing the fixed connection of the connecting plate 400 to the housing 200.

[0056] Further, the side of the connecting plate 400 is clamped in the clamping groove 221 in an interference fit manner to fix the connecting plate 400 to the housing 200, thereby improving the stability of the relative position between the PIN pins 310 and the control board 210.

[0057] In some embodiments, a socket hole 230 is provided on the housing 200, and the other end of the mounting bracket 600 can be clamped and fixed in the socket hole 230.

[0058] It can be understood that since the relative positions between the housing 200 and the valve block 100 are fixed, by fixedly connecting the connecting plate 400 and the other end of the mounting bracket 600 to the housing 200, and fixedly connecting one end of the mounting bracket 600 to the valve block 100, the stability of the positions among the PIN pins 310, the chip 320, and the valve block 100 can be preferably improved, and even when the vehicle vibrates, the stable transmission of signals between the PIN pins 310 and the chip 320 can be ensured.

[0059] In summary, the above are only the preferred embodiments of the present utility model. All equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the patent of the present utility model.

Claims

1. A sensor fixing structure, characterized in that: It comprises a connecting plate provided with PIN needles, a bearing plate provided with a chip and a mounting bracket which can be fixedly mounted on a valve block; the bearing plate can be plugged and fixed on the mounting bracket.

2. The sensor fixing structure according to claim 1, characterized in that: The connection line between the PIN needle and the chip adopts a flexible circuit board.

3. The sensor fixing structure according to claim 1, characterized in that: The mounting bracket is provided with a mounting cavity which can accommodate the carrier board and the chip, and the side wall of the mounting cavity is provided with a plug-in slot for the carrier board to extend into.

4. The sensor fixing structure according to claim 3, characterized in that: A first clamping portion is disposed on at least one of the installation cavity and the plug-in slot, and a second clamping portion capable of being clamped and matched with the first clamping portion is disposed on the carrying plate.

5. The sensor fixing structure according to claim 3, characterized in that: At least a portion of the mounting cavity between the connecting plate and the carrying plate is provided with a transition surface, and the transition surface can lead the connection line between the PIN needle and the chip out of the mounting cavity.

6. The sensor fixing structure according to claim 2, characterized in that: A limiting member is provided on the mounting bracket and at least on one side of the flexible circuit board, and the limiting member can keep the flexible circuit board and the mounting bracket in a close state.

7. The sensor fixing structure according to claim 1, characterized in that: The valve block is provided with a first through hole, and the mounting bracket is inserted and fixed in the first through hole in an interference fit manner.

8. The sensor fixing structure according to claim 1, characterized in that: The valve block is connected to a shell, and the connecting plate and the mounting bracket can be fixedly mounted on the shell.

9. The sensor fixing structure according to claim 8, characterized in that: The housing is provided with a second through hole, and the connecting plate is inserted and fixed in the second through hole in an interference fit manner.

10. The sensor fixing structure according to claim 8, characterized in that: The shell is provided with a plug hole, and the mounting bracket can be snap-fitted and fixed in the plug hole.

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