Vehicle-mounted in-cabin radar

Abstract

The utility model discloses a vehicle-mounted in-cabin radar, which relates to the technical field of radars and comprises a seat body, a cover body and a circuit board assembly. A mounting groove is formed in the upward end face of the seat body, and the size of the mounting groove in the left-right direction is gradually increased in the direction from the groove bottom to the groove opening of the mounting groove; the cover body is clamped at the notch of the mounting groove; the circuit board assembly comprises a circuit board arranged in the mounting groove, and the circuit board is provided with a radar signal transceiving device; according to the utility model, the radar is arranged in the cabin, the cabin does not need very high protection performance, the cover body is clamped on the mounting groove of the seat body, so that the seat body wraps the cover body, water drops can be prevented from entering a circuit board mounted in the mounting groove to the greatest extent, the production process requirement is not high, no special process equipment is needed in the production process, and no additional production cost is needed; the processing maturity is high, and the quality is controllable.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar technical field, especially a kind of vehicle cabin radar. BACKGROUND

[0002] The rapid development of automobile safety technology drives millimeter wave radar to become an important part of automobile sensor, and to cope with complex environmental factors, millimeter wave radar on the market at present mostly adopts sealing glue or laser welding scheme, which seals the radar shell integrally to realize complete shell protection, and such fully-sealed design generally needs production line to be equipped with professional equipment to cope with, and the cost is relatively large, for example, the procurement cost of only one laser welding equipment can be as high as hundreds of thousands of yuan.

[0003] Therefore, how to reduce the sealing cost of vehicle radar has become a technical problem to be solved by personnel in the field. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of vehicle cabin radar, to reduce the sealing cost of vehicle radar.

[0005] To achieve the above object, the vehicle cabin radar provided by the utility model includes a seat body, a cover body and a circuit board assembly; the upward end face of the seat body is provided with a mounting groove, and the size of the mounting groove in the left-right direction gradually increases from the groove bottom to the groove opening; the cover body is connected to the groove opening of the mounting groove; the circuit board assembly includes a circuit board arranged in the mounting groove, and the circuit board has a radar signal transceiver.

[0006] In an embodiment, the inner wall of the mounting groove is provided with a connecting hole penetrating the inside and outside of the mounting groove, and the circuit board assembly further includes a connector and a sealing ring; the connector is electrically connected with the circuit board and is arranged in the connecting hole to be electrically connected with the control system of the vehicle; the sealing ring is arranged between the connector and the hole wall of the connecting hole.

[0007] In an embodiment, the hole wall of the connecting hole is recessed with an annular groove; and the sealing ring is arranged in the annular groove.

[0008] In an embodiment, along the direction from the seat body to the cover body, the annular groove is inclinedly arranged towards the mounting groove near the side wall of the mounting groove.

[0009] In an embodiment, from the groove bottom to the groove opening of the mounting groove, the mounting groove has a groove bottom section and a groove opening section, and the size of the groove opening section in the left-right direction is greater than that of the groove bottom section, so as to form an abutting surface arranged towards the groove opening of the mounting groove at the connection between the groove opening section and the groove bottom section, and the abutting surface is used to abut with the cover body.

[0010] In an embodiment, the vehicle cabin radar further comprises a connecting assembly, which comprises a protruding column and a fastener; the protruding column is arranged on the side of the cover body facing the base body, penetrates the circuit board from top to bottom and abuts against the base body, the protruding column is staggered with the signal transceiver device, and a mounting hole is arranged on the lower end surface of the protruding column; the fastener extends upward to penetrate the base body until extending into the mounting hole, so that the base body and the circuit board are fixedly connected.

[0011] In an embodiment, the diameter of the protruding column is arranged to change along the extension direction of the protruding column, so as to sequentially form a first column segment and a second column segment; the diameter of the second column segment is smaller than that of the first column segment, and the end surface of the second column segment abuts against the base body, so that the end surface of the first column segment clamps the circuit board together with the base body.

[0012] In an embodiment, the circuit board assembly further comprises a shielding cover, which covers the circuit board.

[0013] In an embodiment, one of the base body and the cover body is provided with a plurality of clamping protrusions, and the other is provided with a plurality of buckles, which are buckled with the plurality of clamping protrusions.

[0014] In an embodiment, the base body is provided with a plurality of clamping protrusions on the left and right side edges respectively, and the plurality of clamping protrusions on one side of the base body are arranged to be staggered with the plurality of clamping protrusions on the other side along the front and back directions.

[0015] The technical scheme of the utility model sets the radar in the cabin, and the cabin does not need very high protection performance; the cover body is clamped on the mounting groove of the base body, so that the base body wraps the cover body, which can prevent water drops from entering the circuit board installed in the mounting groove to the greatest extent; the production process requirement is not high, the production process does not need special process equipment, there is no additional production cost, the processing maturity is high, and the quality is controllable. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0017] Figure 1 The utility model provides a vehicle cabin radar one embodiment's three -dimensional assembly schematic view;

[0018] Figure 2 For Figure 1 The cross section schematic view of the vehicle cabin radar after assembly.

[0019] Explanation of reference numerals:

[0020] 100, vehicle-mounted cabin radar; 1, seat body; 11, mounting groove; 2, cover body; 3, circuit board assembly; 31, circuit board; 32, connector; 33, sealing ring; 34, connecting hole; 35, annular groove; 36, shielding cover; 4, connecting assembly; 41, protruding column; 42, fastener; 43, clamping protrusion; 44, buckle.

[0021] The realization, functional features and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0024] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel schemes are included, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the utility model.

[0025] The rapid development of automobile safety technology drives millimeter wave radar to become an important part of automobile sensors, and in response to complex environmental factors, most millimeter wave radars on the market currently use sealing glue or laser welding schemes to seal the radar shell integrally to achieve complete shell protection. However, such full-sealing design generally requires professional equipment on the production line to respond, which is relatively expensive, for example, the procurement cost of only one laser welding device can be as high as hundreds of thousands of yuan.

[0026] Based on this, in order to reduce the sealing cost of the vehicle-mounted radar, the utility model provides a vehicle-mounted cabin radar 100. Please refer to Figure 1 With Figure 2 In an embodiment of the utility model, the vehicle-mounted cabin radar 100 includes seat body 1, cover body 2 and circuit board assembly 3, the upward end face of seat body 1 is provided with mounting groove 11, the size of mounting groove 11 gradually increases from the groove bottom to the direction of the groove mouth in the left and right direction, cover body 2 is connected in the groove mouth of mounting groove 11, circuit board assembly 3 includes the circuit board 31 arranged in mounting groove 11, and the circuit board 31 has radar signal transceiver.

[0027] The technical scheme of the utility model sets up radar in the cabin, and the cabin does not need very high protection performance, and cover body 2 is connected in mounting groove 11 of seat body 1, mounting groove 11 gradually increases in size and is arranged, so that seat body 1 wraps cover body 2, can prevent water droplets from entering the circuit board installed inside mounting groove 11 to the maximum extent, the production process requirement is not high, does not need special process equipment in the production process, has no additional production cost, and the processing maturity is high, and the quality is controllable.

[0028] It should be noted that, in an embodiment, gradually increasing is gradually increasing in size in the left and right direction of mounting groove 11, and in another embodiment, gradually increasing is gradually increasing in size in the left and right direction of mounting groove 11, to form a segmented mounting groove 11, and the cover abuts on the stepped surface.

[0029] In order that the signal of the vehicle-mounted cabin radar 100 can be efficiently and reliably transmitted, in an embodiment, the inner wall of mounting groove 11 is provided with a connecting hole 34 penetrating the inside and outside of mounting groove 11, the circuit board assembly 3 further includes a connector 32 and a sealing ring 33, the connector 32 is electrically connected with the circuit board and is arranged in the connecting hole 34, to be electrically connected with the control system of the vehicle, and the sealing ring 33 is arranged between the connector 32 and the hole wall of the connecting hole 34. In this way, the signal transceiver on the circuit board is stably connected with the control system of the vehicle through the connector 32, and the sealing ring 33 is arranged between the connector 32 and the hole wall of the connecting hole 34, so that the matching interface between the connector 32 and the connecting hole 34 is stably sealed.

[0030] The connecting hole 34 can be arranged on the seat body 1, or on the cover body 2, or on the connecting part of the seat body 1 and the cover body 2, when the connecting hole 34 is arranged on the connecting part of the seat body 1 and the cover body 2, a notch is arranged on one side wall of the mounting groove 11.

[0031] Further, the inner wall surface of the sealing ring 33 is profiled according to the outer wall surface of the connector 32 to cooperate with the connector 32, and a reasonable interference is provided to ensure the close fit between the sealing ring 33 and the connector 32.

[0032] In addition, to improve the waterproof performance, in an embodiment, the hole wall of the connecting hole 34 is concavely provided with an annular groove 35; and the sealing ring 33 is arranged in the annular groove 35. In this way, the annular groove 35 and the sealing ring 33 form a barrier structure, and the connecting hole 34 cannot directly pass through the inside and outside of the mounting groove 11, and dust or water droplets need to pass through the tortuous barrier structure to enter the mounting groove 11, thereby enhancing the sealing performance of the radar 100 in the vehicle cabin.

[0033] Specifically, the outer wall surface of the sealing ring 33 is profiled according to the hole wall of the connecting hole 34 to cooperate with the connecting hole 34, and a reasonable interference is provided to ensure the close fit between the sealing ring 33 and the connecting hole 34; further, the inner wall of the sealing ring 33 can be provided with a groove extending along the extension direction of the connecting hole, and the outer wall of the connector 32 is provided with a protrusion matched with the groove.

[0034] Further, the outer wall surface of the sealing ring 33 is provided with a protrusion, part of which cooperates with the annular groove 35, or the sealing ring 33 is entirely arranged in the annular groove 35.

[0035] In the installation process of the connector 32 and the sealing ring 33 to the seat body 1 and the cover body 2, due to the shearing force in the up-down direction during assembly, the sealing ring 33 cannot be assembled in place or even extruded and deformed. Based on this, in an embodiment, along the direction from the seat body 1 to the cover body 2, the annular groove 35 is inclinedly arranged towards the mounting groove 11 on the side wall of the mounting groove 11. In this way, the direction of the shearing force is changed, the shearing force in the assembly process is reduced, and the problem of extrusion and deformation of the sealing ring 33 during cooperation is also well improved.

[0036] In an embodiment, from the bottom of the mounting groove 11 to the opening, the mounting groove 11 has a groove bottom section and an opening section, the size of the opening section in the left-right direction is greater than the size of the groove bottom section in the left-right direction, so as to form an abutting surface arranged towards the opening of the mounting groove 11 at the connection between the opening section and the groove bottom section, and the abutting surface is used to abut with the cover body 2. In this way, the cover body 2 is abutted on the abutting surface of the mounting groove 11, and the opening section encloses the cover body 2 to form a tortuous sealing structure with an L-shaped cross section, so as to further enhance the sealing performance of the structure.

[0037] In one embodiment, the in-vehicle radar 100 further includes a connecting assembly 4, which includes a protrusion 41 and a fastener 42. The protrusion 41 is located on the side of the cover 2 facing the base 1, extends from top to bottom through the circuit board and abuts against the base 1. The protrusion 41 is offset from the signal transceiver device, and a mounting hole is provided on the lower end face of the protrusion 41. The fastener 42 extends upward to penetrate the base 1 until it reaches into the mounting hole, thereby fixing the base 1, the circuit board 31, and the base 1 in place. In this way, the base 1, the cover 2, and the circuit board assembly 3 are locked and fixed at once by the fastener 42 and the mounting hole.

[0038] Among them, the fastener 42 is a screw or a pin. When the fastener 42 is a screw, the inner wall of the mounting hole is provided with a threaded groove.

[0039] In one embodiment, the diameter of the protrusion 41 varies along its extension direction to sequentially form a first column segment and a second column segment. The diameter of the second column segment is smaller than that of the first column segment, and the end face of the second column segment abuts against the base 1, so that the end face of the first column segment and the base 1 clamp the circuit board. In this way, the distance between the cover 2 and the bottom of the groove can be precisely controlled by the fastener 42, thereby precisely controlling the distance between the cover 2 and the circuit board.

[0040] In one embodiment, the circuit board assembly 3 further includes a shield 36, which covers the circuit board. This effectively prevents external electromagnetic fields from affecting the in-vehicle radar 100, ensuring the stability and performance of the in-vehicle radar 100.

[0041] During the assembly of the radar 100 inside the vehicle compartment, it will be flipped over. To prevent some components of the radar 100 from falling off during the flipping process, in one embodiment, one of the base 1 and the cover 2 is provided with multiple latching protrusions 43, and the other is provided with multiple latches 44. The multiple latches 44 engage with the multiple latching protrusions 43. In this way, the cover 2 and the base 1 can maintain a relatively fixed position throughout the installation process, prevent other parts from falling off, and reduce the appearance gap between the upper and lower covers.

[0042] The protrusion 43 and the buckle 44 can be respectively set on the edge of the base 1 and the cover 2, or they can be set on the contact surface between the cover 2 and the inner wall of the mounting groove 11.

[0043] Furthermore, in one embodiment, the seat 1 has a long side and a short side, and four locking protrusions 43 are provided on the seat 1. The four locking protrusions 43 are respectively provided on the long side of the seat 1, so as to make the seat 1 and the cover 2 tightly engaged with fewer parts.

[0044] In an embodiment, the seat body 1 is provided with a plurality of clamping protrusions 43 on both side edges in the left-right direction, and the plurality of clamping protrusions 43 on one side of the seat body 1 are arranged in a front-rear direction offset manner with the plurality of clamping protrusions 43 on the other side. In this way, the rotation torque of the two buckles 44 is avoided, and rotation of the seat body 1 and the cover body 2 during assembly is prevented.

[0045] The above merely describes exemplary embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, or direct / indirect application in other related technical fields, within the technical concept of the present application, using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A vehicle cabin radar, characterized by, The vehicle-mounted cabin radar comprises: a seat body, an upper end face of which is provided with a mounting groove, the mounting groove gradually increases in size from the groove bottom to the groove opening in the left-right direction; a cover body, which is clamped at the groove opening of the mounting groove; and a circuit board assembly, which comprises a circuit board arranged in the mounting groove, and the circuit board has a radar signal transceiver device.

2. The vehicular cabin radar of claim 1, wherein, An inner wall of the mounting groove is provided with a connecting hole penetrating the inside and outside of the mounting groove, and the circuit board assembly further comprises: a connector, which is electrically connected with the circuit board and is arranged in the connecting hole to be electrically connected with the control system of the vehicle; and a sealing ring, which is arranged between the connector and the hole wall of the connecting hole.

3. The through-the-lens radar as described in claim 2, wherein, The hole wall of the connecting hole is concavely provided with an annular groove; the sealing ring is arranged in the annular groove.

4. The vehicular in-cabin radar of claim 3, wherein, In the direction from the seat body to the cover body, the annular groove is arranged obliquely to the mounting groove near the side wall of the mounting groove.

5. The vehicular in-cabin radar of claim 1, wherein, In the direction from the groove bottom to the groove opening, the mounting groove has a groove bottom section and a groove opening section, the groove opening section is larger than the groove bottom section in the left-right direction, so as to form an abutting surface arranged towards the groove opening of the mounting groove at the connection between the groove opening section and the groove bottom section, and the abutting surface is used to abut with the cover body.

6. The through-the-lens radar according to any one of claims 1 to 5, wherein The vehicle-mounted cabin radar further comprises a connecting assembly, which comprises: a protruding column, which is arranged on the side of the cover body facing the seat body, penetrates the circuit board from top to bottom and abuts with the seat body, the protruding column is staggered with the signal transceiver device, and a mounting hole is arranged on the lower end face of the protruding column; and a fastener, which extends upwards to penetrate the seat body and extend into the mounting hole, so as to fixedly connect the seat body, the circuit board and the seat body.

7. The vehicular cabin radar of claim 6, wherein, The diameter of the protruding column changes in the extending direction, so as to sequentially form a first column section and a second column section, the diameter of the second column section is smaller than that of the first column section, the end face of the second column section abuts with the seat body, so that the end face of the first column section clamps the circuit board with the seat body.

8. The vehicular in-cabin radar of claim 1, wherein, The circuit board assembly further comprises a shielding cover, which covers the circuit board.

9. The vehicular in-cabin radar of claim 1, wherein, One of the seat body and the cover body is provided with a plurality of clamping protrusions, and the other is provided with a plurality of buckles, the plurality of buckles are buckled with the plurality of clamping protrusions.

10. The vehicular cabin radar of claim 9, wherein, The seat body is respectively provided with a plurality of clamping protrusions on the two side edges in the left-right direction, and the plurality of clamping protrusions on one side of the seat body are arranged in the front-back direction staggered with the plurality of clamping protrusions on the other side.

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