A bend connector

Abstract

The utility model discloses a kind of bent connectors, including center pin, insulator and outer conductor, connector main body is built-in in plastic rear shell by encapsulation injection molding, center pin one end extends to line end port downward, center pin other end extends to board end port horizontally, center pin middle part is bent and is arranged, outer conductor is set using split type structure, including board end inner conductor and line end inner conductor with inner space, sleeve with outward horizontal extension is equipped on board end inner conductor upper end, recess and protrusion clamping and fixing between sleeve and line end inner conductor with inner space. Connector main body and millimeter wave radar plastic rear shell are integrally formed, millimeter wave radar plastic rear shell and millimeter wave radar front shell are clamped during installation, while the male connector of connector main body and the PCB board in millimeter wave radar shell is inserted, it is favorable to reduce millimeter wave radar assembly process, reduce assembly difficulty, millimeter wave radar finished product can be directly assembled with another connector connected outside through line end port, reduce assembly cost.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a bent connector for millimeter-wave radar. Background Technology

[0002] Existing millimeter-wave radars are characterized by their small size, light weight, and high spatial resolution. To facilitate power and signal connections, connectors are installed on the rear housing of millimeter-wave radars. Currently, the rear housing and connector of millimeter-wave radars generally adopt a separate structure. The connector is a shaft-type connector with a through-hole on the radar rear housing. Outside the through-hole, the inner end of the connector is locked to the metal rear housing with screws. A sealing ring is placed between the connector and the metal base to achieve a seal.

[0003] Using screws to tighten connectors makes assembly difficult and inconvenient, which affects product performance. Furthermore, if the airtightness of the sealing ring does not meet the standards after assembly, there are equipment safety issues. Summary of the Invention

[0004] Therefore, it is necessary to provide a bent connector to address the technical problem that the existing connectors for millimeter-wave radar are not convenient for assembly.

[0005] A bendable connector includes a connector body, which comprises a center pin, an insulator, and an outer conductor arranged sequentially inside and outside. The connector body is embedded in a plastic back shell by overmolding. One end of the center pin on the connector body extends downward to the wire end port, and the other end of the center pin on the connector body extends horizontally to the board end port. The center pin is bent in the middle. The outer conductor adopts a split structure, including a hollow board end inner conductor and a hollow wire end inner conductor. The upper end of the board end inner conductor is provided with a sleeve extending horizontally outward. The sleeve and the hollow wire end inner conductor are fixed by a convex-concave engagement.

[0006] As described above, a type of bent connector is characterized in that: the upper part of the sleeve has an opening, the edge of the opening is provided with a locking interface, the inner conductor of the wire end is provided with a connecting piece extending axially outward, the connecting piece is squeezed into the sleeve through the opening, and the two sides of the connecting piece abut against the locking interface.

[0007] As described above, a type of bent connector is characterized in that: the outer end of the connecting piece also has a protruding locking block, and a corresponding locking groove is provided on one side edge of the opening, with the locking block and the locking groove interfering with each other.

[0008] As described above, a type of bent connector is characterized in that: a retaining sleeve extends outward around the outer end of the sleeve, and the retaining sleeve interferes with the inner conductor of the wire end.

[0009] As described above, a type of bent connector is characterized in that: the ferrule is provided with a toothed feature, which is a toothed protrusion formed by extrusion on the outer circumferential surface of the ferrule, and the toothed feature is interfering with the inner wall of the hollow cavity of the inner conductor at the wire end for assembly.

[0010] As described above, a type of bent connector is characterized in that: there are two insulators, namely insulator one and insulator two, the center pin is fixed in insulator one and insulator two by adhesive coating, and an adhesive injection hole is provided on the side wall of the outer conductor, the adhesive injection hole connecting the interval between insulator one and insulator two.

[0011] The bent connector described above is characterized in that: a sealing ring is provided on the outer circumference of the inner conductor of the wire end.

[0012] The bent connector described above is characterized in that a sealing ring is further provided between the outer conductor and the center pin.

[0013] The aforementioned bent connector is characterized in that: both ends of the outer conductor are sealed to the plastic back shell with adhesive.

[0014] Compared with traditional technologies, this utility model has the following beneficial effects: 1. In this embodiment, the connector body and the millimeter-wave radar plastic back shell are integrally formed. During installation, the millimeter-wave radar plastic back shell is snapped into the millimeter-wave radar front shell, and the connector body is inserted into the male connector on the PCB board inside the millimeter-wave radar shell. This helps to reduce the millimeter-wave radar assembly process and reduce the assembly difficulty. The finished millimeter-wave radar can be directly assembled with another external connector through the wire end port, reducing the assembly cost.

[0015] 2. In this embodiment, the outer end of the center pin extends horizontally, the inner end is set vertically, and the middle part of the center pin is bent downward, so that the height of the outer end of the center pin is lower than the top of the vertical inner end. This makes the position of the connector wire end port closer to the center of the plastic back shell. Under the condition of meeting the high frequency and high speed signal of millimeter wave radar, this downward bending setting is beneficial to reducing the installation height between the center of the connector wire end port and the PCB board, and is beneficial to reducing the thickness of the finished millimeter wave radar. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the millimeter-wave radar plastic back cover in a preferred embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the front cross-sectional structure of the preferred embodiment; Figure 3 for Figure 1 A three-dimensional structural diagram of the connector body; Figure 4 This is a three-dimensional structural diagram of the connector body in the preferred embodiment 2.

[0017] Figure 5 for Figure 4 Exploded view of the main body of the connector.

[0018] Explanation of main component symbols 1. Plastic back cover; 12. PCB board; 13. Male connector; 2. Connector body; 21. Center pin; 22. Outer conductor; 23. Insulator; 231. Insulator I; 232. Insulator II; 24. Sealing ring; 3. Inner conductor at the plate end; 30. Sleeve; 301. Opening; 302. Snap-fit ​​interface; 303. Snap-fit ​​groove; 304. Snap-fit ​​sleeve; 305. Toothed feature; 4. Inner conductor at the wire end; 41. Sealing ring; 41. Clamping block; 43. Glue injection hole; 5. Interval range; 6. Glue.

[0019] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a further detailed explanation of this utility model. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that when a component is said to be "installed on" another component, it can be directly on the other component or it may be in a component that is centered on it. When a component is said to be "set on" another component, it can be directly set on the other component or it may also be in a component that is centered on it. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or it may also be in a component that is centered on it.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Example Please see Figures 1-5As shown, this embodiment provides a bent connector. The connector body 2 is embedded in the plastic back shell 1 of the millimeter-wave radar by overmolding. One end of the center pin 21 on the connector body 2 extends downward to the board end port, and the wire end port is used to insert with the male connector 13 on the PCB board 12 inside the millimeter-wave radar housing. The other end of the center pin 21 on the connector body 2 extends horizontally to the wire end port, and the wire end port can be inserted with another external connector, thereby enabling power supply and signal transmission to the radar.

[0024] In this embodiment, the connector body 2 and the millimeter-wave radar plastic back shell 1 are integrally formed. During installation, the millimeter-wave radar plastic back shell 1 is snapped into the millimeter-wave radar front shell, and at the same time, the connector body 2 is inserted into the male connector 13 on the PCB board 12 inside the millimeter-wave radar shell. This helps to reduce the millimeter-wave radar assembly process and reduce the assembly difficulty. The finished millimeter-wave radar can be directly assembled with another external connector through the line end port, reducing the assembly cost.

[0025] In this embodiment, the connector body 2 includes an outer conductor 22, a center pin 21, and an insulator 23.

[0026] To achieve a 90° bend in the connector, the center pin 21 is bent in the middle, and the outer conductor 22 adopts a split structure, including a hollow plate-end inner conductor 3 and a hollow wire-end inner conductor 4, which are perpendicular to each other. The upper end of the plate-end inner conductor 3 is provided with a sleeve 30 extending horizontally outward, and the sleeve 30 and the hollow wire-end inner conductor 4 are fixed together by a concave-convex interlocking connection.

[0027] In this embodiment, the upper part of the sleeve 30 has an opening 301. The assembly structure of the inner conductor 4 and the sleeve 30 is as follows: the inner conductor 4 has an axially outward extending connecting piece 41 in the middle. The connecting piece 41 has an arc-shaped cross-section. The connecting piece 41 is squeezed into the sleeve 30 through the opening 301. The edge of the opening 301 has a locking interface 302. The inner conductor 4 has an axially outward extending connecting piece 41. The connecting piece 41 is squeezed into the sleeve 30 through the opening 301. The two sides of the connecting piece 41 interfere with the locking interface 302 during assembly.

[0028] Further improvement: In this embodiment, the outer end of the connecting piece 41 also has a protruding locking block 411, and a corresponding locking groove 303 is provided on one side edge of the opening 301. The locking block 411 and the locking groove 303 interfere with each other, so that the connecting piece 41 is tightly fixed on the sleeve 30. At this time, at the root position of the connecting piece 41, the end of the inner conductor 4 of the wire end is just close to the outer end face of the sleeve 30, realizing the vertical connection between the inner conductor 3 of the plate end and the inner conductor 4 of the wire end.

[0029] Further improvement: In this embodiment, a sleeve 304 extends outward around the outer end of the sleeve 30, and the sleeve 304 has a shape that matches the hollow inner cavity of the inner conductor 4. During installation, as the insulator 231 on the center pin 21 is axially inserted into the inner conductor 4 for interference engagement, the sleeve 304 is also inserted into the inner conductor 4 for interference engagement. The sleeve 304 is used to strengthen the connection between the sleeve 30 and the inner end of the inner conductor 4, and enhance the overall stability of the outer conductor 22.

[0030] Further improvements: The sleeve 304 is provided with a toothed feature 305, which is a toothed protrusion formed by extrusion on the outer circumferential surface of the sleeve 304. The toothed feature 305 interferes with the inner wall of the hollow cavity of the inner conductor 4 at the wire end, further strengthening the tight fit between the inner conductor 3 at the plate end and the inner conductor 4 at the wire end.

[0031] In this embodiment, the outer end of the center pin 21 extends horizontally, while the inner end is vertically positioned. The center pin 21 is bent downwards in the middle, so that the height of the outer end of the center pin 21 is lower than the top of the vertical inner end. This makes the connector wire end port position closer to the center of the plastic back shell 1. Under the condition of meeting the high-frequency and high-speed signal requirements of millimeter-wave radar, this downward bending setting helps to reduce the installation height between the center of the connector wire end port and the PCB board 12, which helps to reduce the thickness of the finished millimeter-wave radar and facilitates subsequent use.

[0032] In this embodiment, there are two insulators 23, namely insulator one 231 and insulator two 232. The center pin 21 is fixed inside insulator one 231 and insulator two 232 by adhesive coating. Insulator one 231 has a shape that matches the hollow inner cavity in the middle of the inner conductor 4 at the wire end, and insulator two 232 has a shape that matches the hollow inner cavity in the upper part of the inner conductor 3 at the plate end. During installation, first, downward pressing is applied to axially press insulator two 232 with center pin 21 into the inner conductor 3 at the plate end for interference fit. Then, horizontal pressing is applied to axially press insulator one 231 into the inner conductor 4 at the wire end for interference fit.

[0033] In this embodiment, a waterproof sealing structure is provided between the connector body 2 and the plastic back shell 1, as well as inside the connector body 2.

[0034] First, a sealing ring 42 is provided on the outer circumference of the inner conductor 4 at the wire end on the outer conductor 22. Multiple sealing rings 42 are provided to be arranged in a concave-convex manner with the plastic back cover 1 of the millimeter-wave radar, which helps to enhance waterproofing.

[0035] Secondly, regarding the outer conductor 22 and the center pin 21, a glue injection hole 43 is provided on the side wall of the inner conductor 4 at the upper end of the outer conductor 22. The glue injection hole 43 connects the interval 5 between the first insulator 231 and the second insulator 232. The diameter of the glue injection hole 43 ensures that when the millimeter-wave radar plastic back shell 1 is injection molded in the mold, the plastic can be injected into the interior of the outer conductor 22 through the glue injection hole 43 and fill the interval 5, separating the center pin 21 from the outer conductor 22, improving the voltage resistance performance of the product, and improving the connection strength between the connector and the millimeter-wave radar plastic back shell 1.

[0036] Further improvements: A sealing ring 24 is provided between the outer conductor 22 and the center pin 21. The sealing ring 24 is attached to the outside of the insulator 231. The outer circumference of the sealing ring 24 is sealed to the inner wall of the inner conductor 4 at the wire end. The center pin 21 is tightly fitted inside the sealing ring 24.

[0037] Fourth, the two ends of the outer conductor 22 are sealed to the millimeter-wave radar plastic back cover 1 with glue 6. Glue 6 is injected into the grooves formed between the outer walls of the two ends of the outer conductor 22 and the inner wall of the millimeter-wave radar plastic back cover 1, and the glue 6 fills the bottom of the grooves to form a glue seal structure.

[0038] In this application, the difference between Embodiment 1 and Embodiment 2 is that in Embodiment 2, the inner conductor 4 at the upper end of the outer conductor 22 is provided with a glue injection hole 43.

[0039] This embodiment provides a bent connector, and the assembly includes at least the following steps: Step 1: Fix the insulator 23 onto the center pin 21 by overmolding; Step 2: Press the insulator 23 downward into the inner conductor 3 on the plate end of the outer conductor 22. At this time, the insulator 232 on the insulator 23 interferes with the inner wall of the sleeve 30, and the vertical inner end of the center pin 21 moves down to the insertion position of the inner conductor 3 on the plate end. Step 3: Press the insulator 23 axially into the inner conductor 4 of the wire end. At this time, the connecting piece 41 on the inner conductor 4 of the wire end engages with the opening 301 on the sleeve 30. The locking block 411 on the connecting piece 41 interferes with the locking groove 303 on the sleeve 30. At the same time, the insulator 231 on the insulator 23 is pressed into the inner conductor 4 of the wire end, and the sleeve 304 at the outer end of the sleeve 30 is squeezed into the inner conductor 4 of the wire end, thus completing the assembly of the bent connector.

[0040] Step 4: After assembling the connector, fix the connector in the mold and overmold the millimeter-wave radar plastic back shell 1.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A bendable connector, comprising a connector body (2), the connector body (2) comprising a center pin (21), an insulator (23), and an outer conductor (22) arranged sequentially inside and outside, characterized in that: The connector body (2) is embedded in the plastic back shell (1) by overmolding. One end of the center pin (21) on the connector body (2) extends downward to the wire end port, and the other end of the center pin (21) on the connector body (2) extends horizontally to the board end port. The center pin (21) is bent in the middle. The outer conductor (22) adopts a split structure, including a hollow board end inner conductor (3) and a hollow wire end inner conductor (4). The upper end of the board end inner conductor (3) is provided with a sleeve (30) extending horizontally outward. The sleeve (30) and the hollow wire end inner conductor (4) are fixed by interlocking.

2. The bent connector according to claim 1, characterized in that: The upper part of the sleeve (30) has an opening (301), and the edge of the opening (301) is provided with a card interface (302). The inner conductor (4) at the wire end is provided with a connecting piece (41) extending outward in an axial direction. The connecting piece (41) is squeezed into the sleeve (30) through the opening (301), and the two sides of the connecting piece (41) interfere with the card interface (302) during assembly.

3. A bent connector according to claim 2, characterized in that: The outer end of the connecting piece (41) also has a protruding locking block (411), and a corresponding locking groove (303) is provided on one side edge of the opening (301). The locking block (411) and the locking groove (303) are assembled in an interference manner.

4. A bent connector according to claim 2, characterized in that: There is an outwardly extending ferrule (304) around the outer end of the sleeve (30), which is squeezed into the inner conductor (4) of the wire end for interference fit.

5. A bent connector according to claim 4, characterized in that: The outer circumference of the ferrule (304) has a toothed feature (305), which interferes with the inner wall of the hollow cavity of the inner conductor (4) at the wire end.

6. A bent connector according to claim 2, characterized in that: There are two insulators (23), namely insulator one (231) and insulator two (232). The center pin (21) is fixed inside insulator one (231) and insulator two (232) by coating. An injection hole (43) is provided on the side wall of the outer conductor (22). The injection hole (43) connects the interval (5) between insulator one (231) and insulator two (232).

7. A bent connector according to claim 2, characterized in that: The inner conductor (4) at the wire end is provided with a sealing ring (42) on its outer circumference.

8. A bent connector according to claim 2, characterized in that: A sealing ring (24) is also provided between the outer conductor (22) and the center needle (21).

9. A bent connector according to claim 2, characterized in that: The two ends of the outer conductor (22) are sealed to the plastic back shell (1) with glue (6).

10. A bent connector according to claim 1, characterized in that: The outer end of the central needle (21) extends horizontally, the inner end is set vertically, and the middle part of the central needle (21) is bent downward.

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