Improved probe shell

Abstract

An improved probe shell comprises a plastic shell with a wire harness connector on one side and a plurality of transmission terminals, the plastic shell and the transmission terminals are integrally formed in an injection molding mode, a mounting cavity is formed in the front face of the plastic shell, the bottom of the mounting cavity is arranged in a penetrating mode, and the first connecting ends of the transmission terminals are vertically located in the mounting cavity. The second connecting end of the transmission terminal is horizontally located in the wire harness connector, the first connecting end is of a fisheye structure, a first mounting block and a second mounting block are oppositely arranged on the inner wall face of the mounting cavity, the first connecting end penetrates through the first mounting block, a vertical fixing cavity is formed in the second mounting block, the fixing cavity is used for being matched with a sensor on a PCB, and the first mounting block and the second mounting block are oppositely arranged. A supporting protruding plate is further arranged on the upper surface of the first mounting block, the supporting protruding plate and the second mounting block support the PCB, the height of the upper surfaces of the supporting protruding plate and the second mounting block is not higher than the height center of the first connecting end, and a fixing structure is further arranged on the back face of the plastic shell. The utility model has the advantages of compact structure, simple and reliable assembly and low cost, and does not need to be welded with the PCB.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile sensors, in particular to an improved probe housing. Background Art

[0002] With the development of science and technology, the proportion of reversing radar used in cars is increasing. Basically, low-end, medium-end and high-end cars have adopted it as standard. Reversing radar is generally installed on the front or rear bumper of the car to detect the distance between the car body and obstacles, and transmit it to the display screen in front of the driver's seat or remind the driver through a buzzer or instrument panel sound alarm, so that the driver can grasp the situation in front of and behind the car to avoid collision between the car body and obstacles when reversing.

[0003] At present, most reversing radar probe shells are assembled as a whole. Generally speaking, the advantage of this assembly method is that it is easy to repair and maintain. However, the production of the assembled shell requires multiple steps. It is necessary to complete the production of each component separately before assembling the whole. The assembly is relatively cumbersome, and the structural strength after assembly is low, the cost is high, and the circuit board and transmission terminal in the existing probe shell need to be welded to achieve reliable electrical connection, which has the problems of complex structure and cumbersome process. Utility Model Content

[0004] In view of the shortcomings of the above-mentioned prior art, the purpose of the utility model is to provide an improved probe housing which has a compact structure, is easy and reliable to assemble, has a low cost, and does not require welding with a PCB board.

[0005] The utility model adopts a technical solution to solve its technical problems. An improved probe housing comprises a plastic shell with a wiring harness connector on one side and a plurality of transmission terminals. The plastic shell and the transmission terminals are integrally injection molded and a mounting cavity is provided on the front. The bottom of the mounting cavity is through-set. The transmission terminal is provided with a first connection end and a second connection end. The first connection end is vertically located in the mounting cavity to be connected to a PCB board, and the second connection end is horizontally located in the wiring harness connector to be connected to an external plug. The first connection end is arranged in a fisheye structure. A first mounting block and a second mounting block are relatively arranged on the inner wall surface of the mounting cavity. The first mounting block is for the first connection end to pass through. A vertical fixed cavity is formed on the second mounting block. The fixed cavity is used to cooperate with a sensor on the PCB board. A supporting convex plate is also provided on the upper surface of the first mounting block. The supporting convex plate and the second mounting block form a support for the PCB board, and the height of the upper surface of the supporting convex plate and the second mounting block is not higher than the height center of the first connection end. The back of the plastic shell is also provided with a fixing structure fixed to the carrier.

[0006] Advantages of the above technical solution: the transmission terminal and the plastic shell are combined by injection molding, the structure is compact, the protection effect is good, and the first connection end adopts a fisheye structure, which is wide in the middle and narrow at both ends. On the one hand, it can ensure that the PCB board is inserted more easily, and on the other hand, it can ensure that the PCB board forms a good connection after insertion and the two will not be easily separated. The connection with the conductive jack of the PCB board is more firm, the signal transmission is more reliable, and the subsequent welding operation process is omitted, which reduces the production cost. The first mounting block forms an effective fixation for the first connection end, which avoids the first connection end from being suspended in the air, and the connection with the PCB board will be more stable. The second mounting block with the plug-in cavity forms an effective fixation for the sensor, making the installation of the sensor more stable. The support convex plate cooperates with the second mounting block to form an installation support for the PCB board, and can effectively limit the excessive insertion of the PCB board. The setting of the fixed structure facilitates the installation and connection of the plastic shell with the bumper or other components. Therefore, the overall structure of this product is compact, the assembly is simple and reliable, the cost is low, and there is no need to weld with the PCB board, and the signal transmission will be more stable.

[0007] Furthermore, the transmission terminals are provided with four and the first connection ends are distributed in pairs front and back in the installation cavity, a transverse widening portion is formed below the first connection ends, the second connection ends are arranged side by side laterally, and the distance between the second connection ends and the upper inner wall surface of the wiring harness connector is smaller than the distance between the second connection ends and the lower inner wall surface of the wiring harness connector.

[0008] Advantages of the above technical solution: four transmission terminals are used to realize the signal detection function, and the first connection ends are distributed in pairs front and back. Compared with the method of setting them horizontally side by side, it makes more reasonable use of space and effectively reduces the overall volume. By setting the widened portion, the first connection end is more firmly combined with the first mounting block, and the use strength is also higher. The second connection end is arranged horizontally side by side in the wiring harness connector, and is designed to be asymmetrically distributed up and down in the wiring harness connector, which can prevent the circuit board from burning out due to incorrect installation direction or inconsistent specifications of the external plug, and it will be relatively safe to use.

[0009] Furthermore, the wiring harness connector is also provided with a first anti-error rib, a second anti-error rib, and a fastening slot. The first anti-error rib is arranged on the upper inner wall surface of the wiring harness connector, and the second anti-error rib is arranged on the left inner wall surface or the right inner wall surface of the wiring harness connector. The fastening slot is located between the second connection end and the lower inner wall surface of the wiring harness connector.

[0010] The advantages of adopting the above technical solution are as follows: by setting the first anti-mistake rib and the second anti-mistake rib, the external plug can be better prevented from misinstalling; by setting the fastening slot, the connection between the external plug and the wiring harness connector is more stable; at the same time, the molding positions of the first anti-mistake rib and the fastening slot are also reasonable.

[0011] Furthermore, the inner wall surface of the bottom of the wiring harness connector is provided with a stop boss at the corner, and the stop boss cooperates with the bottom of the external plug. The inner wall surface of the wiring harness connector is also provided with a pair of stop bosses at the corner, and the stop bosses cooperate with the outer wall of the external plug.

[0012] Advantages of the above technical solution: by setting the stop boss and the stop column, after the external plug is inserted, while ensuring the connection stability, there will be a gap between the external plug and the inner wall surface of the wiring harness connector, thereby facilitating air convection and achieving good heat dissipation.

[0013] Furthermore, a pair of guide posts and a first mounting buckle located between the guide posts are provided on the upper outer wall surface of the wiring harness connector.

[0014] The advantages of adopting the above technical solution are as follows: the setting of the guide column facilitates the plugging of the external plug and the wiring harness connector, and the setting of the first mounting buckle improves the stability of the connection between the external plug and the wiring harness connector.

[0015] Furthermore, the fixing structure includes a fixing flange and a second mounting buckle. The fixing flange is arranged in a circumferential manner, and the top of the inner peripheral wall of the fixing flange is arranged as an inner conical surface with a larger inner diameter at the front and a smaller inner diameter at the back. The second mounting buckle is arranged at a circumferential interval at the top of the outer peripheral wall of the fixing flange.

[0016] Advantages of the above technical solution: by designing a fixing convex edge with a second mounting buckle, the plastic shell is fixed at a specified position of the carrier. At the same time, the formation of the inner cone makes the second mounting buckle cooperate with the slot on the carrier more smoothly, with a simple structure, easy molding and good fixing effect.

[0017] Furthermore, a third mounting buckle is provided on the side surface of the plastic shell, and the third mounting buckle is used to install the protective cover.

[0018] Advantages of adopting the above technical solution: the formation of the third mounting buckle enables the upper opening of the mounting cavity to be covered by a detachable protective cover after the PCB board is installed in the mounting cavity, thereby protecting the internal PCB board, and the structure is reasonable.

[0019] Furthermore, an anti-error convex plate cooperating with the fixing structure is also provided on the side surface of the plastic shell, and the anti-error convex plate is arranged on the other side of the plastic shell opposite to the wiring harness connector.

[0020] The advantages of adopting the above technical solution are as follows: by forming an anti-mistake convex plate at the corresponding position on the side of the plastic shell, the plastic shell and the carrier can be effectively prevented from being misassembled, thereby ensuring the accuracy of installation and making it safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 Another view of the overall structure of the utility model;

[0023] Figure 3 Another view of the overall structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the transmission terminal structure of the utility model.

[0025] In the figure: 1-plastic shell, 2-wiring harness connector, 3-transmission terminal, 4-installation cavity, 5-first connection end, 6-second connection end, 7-first installation block, 8-second installation block, 9-fixing cavity, 10-support convex plate, 11-widening portion, 12-first anti-error rib column, 13-second anti-error rib column, 14-fastening slot, 15-stop boss, 16-stop boss, 17-guide column, 18-first installation buckle, 19-fixing flange, 20-second installation buckle, 21-third installation buckle, 22-anti-error convex plate. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the embodiments of the utility model and / or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work. In addition, the orientation only represents the relative position relationship between the components, not the absolute position relationship.

[0027] See also Figures 1 to 4As shown, an improved probe housing includes a plastic shell 1 with a wiring harness connector 2 on one side, and a plurality of transmission terminals 3. In more detail, the number of the transmission terminals 3 is specifically four to realize signal detection. The plastic shell 1 and the transmission terminals 3 are integrally injection molded. The transmission terminals 3 and the plastic shell 1 are combined by injection molding, which can effectively prevent water vapor from invading from the insertion gap between the plastic shell 1 and the transmission terminals 3, and the protection effect is better and the structure is more compact. The front of the plastic shell 1 is also provided with a mounting cavity 4, and the bottom of the mounting cavity 4 is through-set. The mounting cavity 4 is used to install a PCB board with a sensor. The transmission terminal 3 is provided with a first connection end 5 and a second connection end 6. The first connection end 5 is vertically located in the mounting cavity 4 to connect with the PCB board, and the second connection end 6 is horizontally located in the wiring harness connector 2 to connect with the external plug. In this way, the matching direction of the first connection end 5 and the PCB board is perpendicular to the matching direction of the second connection end 6 and the plug, and the structure will be more compact. More specifically, the transmission terminal 3 is formed by three consecutive bends to form the first connection end 5 and the second connection end 6, and its shape will be spoon-shaped.

[0028] In this example, the first connection end 5 is arranged in a fisheye structure, which is wide in the middle and narrow at both ends. On the one hand, it can ensure that the PCB board is inserted more easily, and on the other hand, it can ensure that a good connection is formed after the PCB board is inserted and the two will not be easily separated. The connection with the conductive socket of the PCB board is more firm, the signal transmission is more reliable, and the subsequent welding operation process is omitted, thereby reducing the production cost.

[0029] In this example, a first mounting block 7 and a second mounting block 8 are relatively provided on the inner wall surface of the mounting cavity 4. The first mounting block 7 is for the first connecting end 5 to pass through. A vertical fixing cavity 9 is formed on the second mounting block 8. The fixing cavity 9 is used to cooperate with the sensor on the PCB board. A convex rib can also be provided on the inner wall of the fixing cavity 9 to provide a fixing effect. The first mounting block 7 is used to effectively fix the first connecting end 5, thereby avoiding the first connecting end 5 from being suspended in the air, and the connection with the PCB board will be more stable. The second mounting block with the fixing cavity 9 is used to effectively fix the sensor. More specifically, the fixing plate on the sensor can be inserted into the fixing cavity 9 to form a position limit, so that it is not easy to be detached by vibration, and the installation of the sensor is more stable.

[0030] In this embodiment, a supporting protrusion 10 is further provided on the upper surface of the first mounting block 7. The supporting protrusion 10 and the second mounting block 8 form a support for the PCB board. The upper surface heights of the supporting protrusion 10 and the second mounting block 8 are consistent. Since the first connecting end 5 is a fisheye structure that is wide in the middle and narrow at both ends, the upper surface heights of the supporting protrusion 10 and the second mounting block 8 are not higher than the height center of the first connecting end 5 (slightly lower than the height center). With this arrangement, the PCB board can reasonably form a firm connection with the first connecting end 5 after being inserted.

[0031] In this embodiment, a fixing structure fixed to the carrier is further provided on the back of the plastic shell 1. The setting of the fixing structure facilitates the installation and connection of the plastic shell 1 with the bumper or other components. Therefore, the overall structure of this product is compact, the assembly is simple and reliable, the cost is low, and there is no need for welding with the PCB board, and the signal transmission will be more stable.

[0032] In the present embodiment, the first connection ends 5 of the transmission terminals 3 in the mounting cavity 4 are distributed in pairs front and back, which makes more reasonable use of space and effectively reduces the overall volume compared to the horizontal side-by-side arrangement. A horizontal widening portion 11 is also formed below the first connection end 5. By setting the widening portion 11, the first connection end 5 is more firmly combined with the first mounting block 7, and the use strength is also higher. The second connection ends 6 are arranged horizontally side by side, and the distance between the second connection ends 6 and the upper inner wall surface of the wiring harness connector 2 is smaller than the distance between the second connection ends 6 and the lower inner wall surface of the wiring harness connector 2. The second connection ends 6 are arranged horizontally side by side in the wiring harness connector 2, and are designed to be asymmetrically distributed in the wiring harness connector 2 from top to bottom. This can prevent the circuit board from burning out due to incorrect installation direction or inconsistent specifications of the external plug, and the use will be relatively safe.

[0033] In this embodiment, a first anti-error rib 12, a second anti-error rib 13, and a fastening slot 14 are also provided in the wiring harness connector 2. The first anti-error rib 12 is provided on the upper inner wall surface of the wiring harness connector 2, and the second anti-error rib 13 is provided on the left inner wall surface or the right inner wall surface of the wiring harness connector 2. The fastening slot 14 is located between the second connecting end 6 and the lower inner wall surface of the wiring harness connector 2. By providing the first anti-error rib 12 and the second anti-error rib 13, the external plug can be better prevented from being installed incorrectly. By providing the fastening slot 14, the connection between the external plug and the wiring harness connector 2 is more stable. At the same time, the molding positions of the first anti-error rib 12 and the fastening slot 14 are also reasonable.

[0034] In this embodiment, a stop boss 15 is provided at the corner of the inner wall surface at the bottom of the wiring harness connector 2, and the stop boss 15 cooperates with the bottom of the external plug. After the external plug is inserted, it will not be completely in contact with the inner wall surface of the bottom of the wiring harness connector 2. A pair of stop bosses 16 are also provided at the corners on the inner peripheral wall surface of the wiring harness connector 2, and the stop bosses 16 cooperate with the outer peripheral wall of the external plug. It should be noted that the stop bosses 16 are arranged on both edge sides of the stop boss 15. After the external plug is inserted, it will not be completely in contact with the inner peripheral wall surface of the wiring harness connector 2. By setting the stop boss 15 and the stop boss 16, after the external plug is inserted, there will be a gap between the external plug and the inner wall surface of the wiring harness connector 2 while ensuring a stable connection, thereby facilitating air convection and achieving good heat dissipation.

[0035] In this embodiment, a pair of guide columns 17 and a first mounting buckle 18 located between the guide columns 17 are further provided on the upper outer wall surface of the wiring harness connector 2. The setting of the guide columns 17 facilitates the plugging of the external plug into the wiring harness connector 2. The setting of the first mounting buckle 18 improves the stability of the connection between the external plug and the wiring harness connector 2. At the same time, the guide columns 17 and the first mounting buckle 18 are formed on the upper outer wall surface of the wiring harness connector 2. The first anti-misalignment rib column 12 on the upper inner wall surface of the wiring harness connector 2 also has the function of increasing strength, and the service life will be longer.

[0036] In this embodiment, the fixing structure includes a fixing flange 19 and a second mounting buckle 20. The fixing flange 19 is arranged in a circumferential manner. The top of the inner wall of the fixing flange 19 is set as an inner cone with a larger inner diameter at the front and a smaller inner diameter at the back. The second mounting buckles 20 are arranged at circumferential intervals at the top of the outer wall of the fixing flange 19. By designing the fixing flange 19 with the second mounting buckle 20, the plastic shell 1 can be fixed at a specified position of the carrier. At the same time, due to the formation of the inner cone, the top of the inner wall of the fixing flange 19 is prone to elastic deformation, so that the second mounting buckle 20 can cooperate with the slot on the carrier more smoothly. The structure is simple, easy to form, and the fixing effect is good.

[0037] In this embodiment, a third mounting buckle 21 is further provided on the side of the plastic shell 1, and the third mounting buckle 21 is used to install a protective cover. The formation of the third mounting buckle 21 enables the upper opening of the mounting cavity 4 to be covered by a detachable protective cover after the PCB board is installed in the mounting cavity 4, thereby protecting the internal PCB board, and the structure is reasonable.

[0038] In this embodiment, an anti-error convex plate 22 cooperating with the fixed structure is further provided on the side of the plastic shell 1. The anti-error convex plate 22 is arranged on the other side of the plastic shell 1 relative to the wiring harness connector 2. By molding the anti-error convex plate 22 at the corresponding position on the side of the plastic shell 1, the occurrence of wrong installation of the plastic shell 1 and the carrier can be effectively prevented, thereby ensuring the accuracy of installation and safer use.

[0039] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. An improved probe housing, comprising a plastic shell (1) with a wiring harness connector (2) on one side, and a plurality of transmission terminals (3), wherein the plastic shell (1) and the transmission terminals (3) are integrally injection-molded and a mounting cavity (4) is provided on the front side, the bottom of the mounting cavity (4) is through-set, the transmission terminal (3) is provided with a first connection end (5) and a second connection end (6), the first connection end (5) is vertically located in the mounting cavity (4) to be connected to a PCB board, and the second connection end (6) is horizontally located in the wiring harness connector (2) to be connected to an external plug, characterized in that: The first connection end (5) is arranged in a fisheye structure. A first mounting block (7) and a second mounting block (8) are arranged opposite to each other on the inner wall surface of the mounting cavity (4). The first mounting block (7) is for the first connection end (5) to pass through. A vertical fixing cavity (9) is formed on the second mounting block (8). The fixing cavity (9) is used to cooperate with a sensor on a PCB board. A supporting convex plate (10) is also arranged on the upper surface of the first mounting block (7). The supporting convex plate (10) and the second mounting block (8) form a support for the PCB board. The height of the upper surface of the supporting convex plate (10) and the second mounting block (8) is not higher than the height center of the first connection end (5). The back of the plastic housing (1) is also provided with a fixing structure fixed to the carrier.

2. The improved probe housing according to claim 1, characterized in that: The transmission terminals (3) are provided with four first connection ends (5) which are arranged in pairs in front and back in the installation cavity (4); a transverse widening portion (11) is formed below each of the first connection ends (5); the second connection ends (6) are arranged transversely side by side; the spacing between the second connection ends (6) and the upper inner wall surface of the wiring harness connector (2) is smaller than the spacing between the second connection ends (6) and the lower inner wall surface of the wiring harness connector (2).

3. The improved probe housing according to claim 2, characterized in that: The wiring harness connector (2) is further provided with a first anti-mismatch rib (12), a second anti-mismatch rib (13), and a fastening slot (14); the first anti-mismatch rib (12) is provided on the upper inner wall surface of the wiring harness connector (2); the second anti-mismatch rib (13) is provided on the left inner wall surface or the right inner wall surface of the wiring harness connector (2); and the fastening slot (14) is located between the second connection end (6) and the lower inner wall surface of the wiring harness connector (2).

4. According to the improved probe housing of claim 3, it is characterized in that: The inner wall surface of the bottom of the wiring harness connector (2) is provided with a stop boss (15) at a corner, and the stop boss (15) matches with the bottom of the external plug. The inner wall surface of the wiring harness connector (2) is also provided with a pair of stop bosses (16) at the corner, and the stop bosses (16) match with the outer wall surface of the external plug.

5. The improved probe housing according to claim 3, characterized in that: A pair of guide posts (17) and a first mounting buckle (18) located between the guide posts (17) are also provided on the upper outer wall surface of the wiring harness connector (2).

6. The improved probe housing according to claim 1, characterized in that: The fixing structure comprises a fixing flange (19) and a second mounting buckle (20); the fixing flange (19) is arranged in a circumferential manner; the top of the inner peripheral wall of the fixing flange (19) is arranged as an inner conical surface with an inner diameter larger at the front and smaller at the rear; and the second mounting buckle (20) is arranged at a circumferential interval at the top of the outer peripheral wall of the fixing flange (19).

7. The improved probe housing according to claim 1, characterized in that: A third mounting buckle (21) is also provided on the side surface of the plastic housing (1), and the third mounting buckle (21) is used for mounting a protective cover.

8. The improved probe housing according to claim 1, characterized in that: The side surface of the plastic housing (1) is also provided with an anti-error convex plate (22) cooperating with the fixing structure, and the anti-error convex plate (22) is arranged on the other side of the plastic housing (1) relative to the wiring harness connector (2).

Images