CN210666011U - Radar of exempting from welding assembly - Google Patents

Abstract

The utility model relates to an exempt from radar of welding assembly, including the base, with the upper cover of base cooperation installation and set up the circuit board between base and upper cover, a plurality of stitches of having arranged at the base middle part, every stitch include the shoulder and by the shoulder extends the elasticity portion and the connecting portion that form to both ends respectively, the one end that the shoulder was kept away from to elasticity portion has guide tip, middle part and sets up the fish eye that runs through along the thickness direction, the inside word contact pin that is provided with at least one and can take place elastic deformation of fish eye. The straight contact pin is arranged in the fish eye hole of the pin, so that the pin is prevented from being reduced in outer diameter and incapable of being recovered after the fish eye hole is disassembled and assembled for many times, and further, a gap is generated between the pin and a circuit board, so that the circuit is in poor contact, the pin with the straight contact pin is assembled on the circuit board, and a welding process is omitted; when a product fails, after-sales personnel do not need to carry corresponding equipment such as a fusion welding machine and a welding machine, and the burden of the after-sales personnel on going out is reduced.

Description

Radar of exempting from welding assembly

Technical Field

The utility model relates to a wireless communication device technical field specifically is a exempt from radar of welding assembly.

Background

The connection of an internal circuit board and a wire harness of a traditional radar product is mostly in a manual or machine welding mode, and a part of products are subjected to soldering tin conduction after penetrating through a packaging shell and then penetrating through the circuit board by adopting a connector; some products adopt the pencil to link up inside and outside, and pencil one end is passed the circuit board after, carries out soldering tin and switches on, and one end is passed the encapsulation casing and is connected with outside relevant hardware.

On the one hand, no matter the soldering tin mode is artifical or machine, there must be the rosin joint risk, and the manual welding must have the hourglass and welds the risk, and the rosin joint, leak and weld the product when through inside quality control, qualified when having the inspection, but the vibration that produces when transportation or external installation leads to the product inefficacy, sends out product reliability unstability outward, leads to enterprise's reputation and trade status to reduce.

On the other hand, when a product fails, after-sales personnel need to disassemble part or all welding points in the process of troubleshooting, heating and fusion welding are carried out by simple equipment needing manual operation, and after the product fails, welding is carried out by the simple equipment needing manual operation. The man-hour and the equipment that whole troubleshooting used carry, have increased corresponding after-sale cost, and manual welding has brought corresponding to be the inefficacy risk, does not get rid of the possibility after-sale repeatedly, reduces the customer and uses the confidence to the product.

Therefore, there is a need for a radar that is simple and weld-free to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: provides a radar which is free of welding assembly and is simple and rapid to install.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a welding-assembly-free radar comprises a base, an upper cover and a circuit board, wherein the upper cover is matched with the base, the circuit board is arranged between the base and the upper cover, a plurality of pins which are in interference fit with the circuit board and are integrally acicular are arranged in the middle of the base, each pin comprises a shoulder part, and an elastic part and a connecting part which are formed by extending the shoulder part to two ends in the length direction respectively, wherein,

the elastic part comprises at least one plate-shaped structure, a guide end part is arranged at one end far away from the shoulder part, a through fisheye hole is formed in the plate-shaped structure along the thickness direction, and at least one straight contact pin capable of elastically deforming in the width direction of the plate-shaped structure is arranged in the fisheye hole;

the width of the shoulder part close to the end part of the connecting part is larger than that of the connecting part so as to form a first stop step in the length direction; the width of the shoulder part close to the end part of the elastic part is larger than that of the elastic part so as to form a second stop step in the length direction, and the second stop step extends in the width direction and forms a convex angle in the direction close to the elastic part.

Furthermore, the straight contact pin is transversely and fixedly connected with two ends of the line of the maximum width dimension of the fisheye hole.

Furthermore, the two straight contact pins are longitudinally and symmetrically fixedly connected to two sides of the maximum length dimension line of the fisheye hole.

Furthermore, the middle part of the base extends towards two sides respectively to form a coaxial injection molding platform and a mounting column, and a fixing column and a second fixing through hole for locking connection and a supporting surface for supporting a circuit board are arranged at the edge;

the mounting post is equipped with the external screw thread in the mounting post outside and inside forms the mounting post blind hole that is used for cooperating external connector, be located on the base waterproof recess has been seted up to base and mounting panel junction a week.

Furthermore, the radar also comprises a mounting plate fixedly connected with the base, and a flat gasket and an external nut which are matched with the mounting column;

the middle part of the mounting plate is provided with a mounting plate through hole for penetrating through the mounting column; the flat gasket is sleeved on the outer side of the mounting column and is positioned between the mounting plate and the external nut; the external nut is in threaded connection with the external thread of the mounting column, and the external nut is fixedly connected with the external connector.

Further, the radar also comprises a first sealing ring and a second sealing ring which are used for sealing and preventing water, the first sealing ring is embedded between the base and the upper cover, and the second sealing ring is embedded between the base and the mounting plate and sleeved on the outer side of the mounting column.

Further, the circuit board with the holding surface supports and leans on the laminating, the circuit board middle part seted up with stitch interference fit's pad through-hole and border seted up with fixed column clearance fit's first fixed through hole, it is close to assume the circuit board the one side of base is positive, is close to for the installation reverse side the one side of upper cover, the installation openly is located pad through-hole edge is provided with avoids the pad through-hole and with the pad that the protruding apex supported and leans on.

Furthermore, the elastic part of stitch is located a word contact pin department with pad through-hole interference fit, the shoulder of stitch is located between circuit board and the platform of moulding plastics, place in the connecting portion of stitch the erection column blind hole.

Further, it is tight that first end a step top the platform of moulding plastics is kept away from the terminal surface of erection column one end, the second ends a step top tightly the pad, connecting portion are kept away from the one end of shoulder is provided with the cone angle that is used for the direction, is close to the first one end of ending a step is provided with outside convex barb, barb top is tight the platform of moulding plastics is close to the terminal surface of erection column one end.

Furthermore, the radar also comprises a first screw and a second screw which are used for locking connection, the first screw penetrates through the first fixing through hole and then is fastened and connected with the fixing column, and the second screw penetrates through the second fixing through hole and then is fastened and connected with the upper cover.

Further, the base, the pins, the injection molding platform and the fixing columns are of an integrated injection molding structure.

Furthermore, the shoulder part, the elastic part and the connecting part are of an integrated punching/upsetting forming structure.

Compared with the prior art, the utility model discloses an useful part is:

the pin of the utility model adopts the straight pin in the fish eye hole, so as to prevent the fish eye hole from reducing the outer diameter and being unable to recover after being disassembled and assembled for many times, further generating a gap between the pin and a circuit board, resulting in the condition of poor circuit contact, and reducing the condition of broken circuit caused by fusing during overcurrent and overvoltage; the pin with the straight contact pin is assembled on the circuit board and is in interference fit with the circuit board, so that a welding process is omitted, and the risks of insufficient soldering and missing soldering existing in circuit welding are avoided;

secondly, the first stop step and the second stop step are designed at the joints of the shoulder part, the connecting part and the elastic part of the pin, so that the position deviation during injection molding is effectively avoided, and the tolerance requirement of the pin on the base is ensured; set up protruding closed angle on first end position step, realize the dual connection of stitch and pad, effectively avoided when the elastic component of stitch breaks down or trouble, the condition that the product directly became invalid.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

The present invention will be further explained with reference to the accompanying drawings:

fig. 1 is an exploded view of a radar of a welding-free device according to the present invention;

FIG. 2 is a further exploded view of FIG. 1;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a perspective view of a stitch;

FIG. 5 is a schematic view of an assembly of a fish eye and a straight pin according to an embodiment;

FIG. 6 is a schematic view of the assembly of the fish-eye hole and the straight pin according to the second embodiment;

FIG. 7 is a schematic view of the reverse side of the circuit board;

FIG. 8 is a schematic structural view of the front side of the circuit board;

FIG. 9 is a schematic view of the inner structure of the base;

FIG. 10 is a schematic view of the outer structure of the base;

1-covering the upper cover; 2-a circuit board; 3-a first screw; 4-stitch; 5-a first sealing ring; 6-a base; 7-a second screw; 8-a second sealing ring; 9-flat cushion; 10-an outer nut; 11-a mounting plate; 111-mounting plate through holes; 21-pad via holes; 22-a first fixing through hole; 23-mounting the front face; 24-a pad; 25-mounting the reverse side; 41-cone angle; 42-a first stop step; 43-a second stop step; 44-convex sharp corner; 45-straight pin insertion; 46-barbs; 47-an elastic portion; 48-shoulder; 49-a connecting portion; 61-injection platform; 62-fixed column; 63-a support surface; 64-mounting posts; 65-external threads; 66-mounting post blind holes; 67-a waterproof groove; 68-second fixing through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, the technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of such technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example one

As shown in figures 1-4 a exempt from radar of welding assembly, including base 6, with upper cover 1 and the setting that 6 cooperations of base were installed are in circuit board 2 between base 6 and the upper cover 1, 6 middle parts of base arrange a plurality of with 2 interference fit of circuit board and whole are acicular stitch 4, adopted interference fit's mode to have removed welding process from, have avoided rosin joint, the hourglass welding risk that circuit welding exists, at the quality testing in-process, the probability that the defective products were selected out is higher than the probability that the bad screening of welding was selected out far away, and the probability that the defective products flowed out is less than the probability that the bad product of welding flowed out far away, and the reliability of this design is greater than the welding process reliability.

Preferably, each pin 4 comprises a shoulder 48, and an elastic part 47 and a connecting part 49 which are respectively formed by extending the shoulder 48 to two ends in the length direction, and in order to ensure the whole strength, the shoulder 48, the elastic part 47 and the connecting part 49 are designed into an integral punching/upsetting forming structure; wherein, elastic component 47 includes a platelike structure, and is keeping away from the one end of shoulder 48 has the direction tip, the fisheye that runs through is seted up along the thickness direction on the platelike structure, and the design of direction tip is convenient for insert on circuit board 2, and the fisheye is for guaranteeing the elastic deformation when the stitch inserts, for preventing that the fisheye external diameter reduces unable recovery after dismouting many times, and then and produce the clearance between the circuit board, leads to the bad condition of circuit contact the inside a word contact pin 45 that sets up at least one and can take place elastic deformation of fisheye, in this embodiment, as shown in fig. 5, a word contact pin 45 transversely sets up, fixed connection is in the both ends of fisheye maximum width dimension line, in compression process, a word contact pin 45 upwards or takes place elastic deformation downwards in the horizontal direction.

In order to improve the stability of the connection, the elastic portion 47 may be provided with two plate-like structures arranged in a crisscross manner, and when the elastic deformation capability of one of the plate-like structures is weakened or even lost, the other plate-like structure may be connected.

Preferably, the width of the shoulder portion 48 near the end of the connecting portion 49 is greater than the width of the connecting portion 49 to form a first stop step 42 in the length direction; the width of the shoulder portion 48 close to the end portion of the elastic portion 47 is larger than the width of the elastic portion 47 so as to form a second stop step 43 in the length direction, thereby effectively avoiding position deviation during injection molding and ensuring the tolerance requirement of pins on the base.

Preferably, the second stop step 43 extends in the width direction and forms a convex angle 44 facing the direction close to the elastic part 47, so that the double electrical connection between the pin 4 and the pad 24 is realized, and the direct failure of the product is effectively avoided when the elastic part 47 of the pin is damaged or failed.

Preferably, connecting portion 49 is kept away from the one end of shoulder 48 is provided with cone angle 41 for play the effect of direction when assembling with external connector connecting portion 49 is close to the one end of first stop step 42 is provided with outside protrusion and most advanced orientation the barb of shoulder 48 one side, the barb top is tight injection moulding platform 61 is close to the terminal surface of erection column 64 one end, realizes stitch 4 to injection moulding platform 61 further chucking, even the pine circumstances of coming unstuck appears in stitch 4 and injection moulding platform 61 and still can the chucking, can effectively prevent the condition that stitch 4 drops in the dismouting in-process, has increased the bulk strength and the life of radar.

As shown in fig. 9-10, the middle of the base 6 extends to both sides to form a coaxial injection platform 61 and a mounting post 64, and the edge is provided with a fixing post 62 and a second fixing through hole 68 for locking connection and a supporting surface 63 for supporting the circuit board 2; the outer side of the mounting column 64 is provided with an external thread 65, and a mounting column blind hole 66 for connecting an external connector is formed inside the mounting column 64, so that internal and external conduction is realized; the base 6 is located waterproof recess 67 has been seted up to base 6 and mounting panel 11 junction a week, avoids outside water to enter into radar wiring department, leads to wiring department circuit trouble.

For the installation of convenience, will base 6, stitch 4, platform 61 and fixed column 62 design as an organic whole injection moulding structure, in advance with stitch 4 fixed to injection mold on, the state after the completion of moulding plastics is: stitch 4's second is only stopped a step 43 and is pushed up tightly platform 61 of moulding plastics keeps away from the terminal surface of erection column 64 one end, barb 46 pushes up tightly platform 61 of moulding plastics is close to the terminal surface of erection column 64 one end realizes having increased the bulk mounting intensity to stitch 4's multiple chucking, effectively prevents to drop.

In the installation, the elastic part 47 of stitch 4 is located a word contact pin 45 department with pad through-hole 21 interference fit, the second ends a step 43 and tightly rather than fixed connection's protruding apex angle 44 top pad 24, shoulder 48 are located between circuit board 2 and the platform 61 of moulding plastics, place in the connecting portion 49 of stitch 4 in erection column blind hole 66 is convenient for connect outside plug connector and is realized switching on inside and outside.

Preferably, the radar further comprises a mounting plate 11 fixedly connected with the base 6, and a flat pad 9 and an external nut 10 matched with the mounting column 64; the middle part of the mounting plate 11 is provided with a mounting plate through hole 111 for penetrating through the mounting column 64; the flat gasket 9 is sleeved on the outer side of the mounting column 64 and is positioned between the mounting plate 11 and the external nut 10; the external nut 10 is in threaded connection with the external thread 65 of the mounting column 64 to realize fixation; outside nut 10 with outside connector fixed connection realizes quick assembly disassembly, and the installation hole site is a via hole by a plurality of fixed through-holes and a design of crossing the line hole, and this via hole both is the mounting hole and also crosses the line hole, uses during the installation a waterproof gasket can, reduces the part quantity that uses during the installation, can realize the installation of punching fast, avoids not leading to the trompil repeatedly because of the trompil is inaccurate, and the trompil not only increases the installation degree of difficulty repeatedly, still weakens whole waterproof performance.

Preferably, the radar further comprises a first sealing ring 5 and a second sealing ring 8 for sealing and waterproofing, wherein the first sealing ring 5 is embedded between the base 6 and the upper cover 1 and is in a profile design with the base 6, so that the sealing effect is ensured; second sealing washer 8 embedded in between base 6 and the mounting panel 11 and the cover establish the outside of erection column 64 specifically embedded in the waterproof recess 67 of base 6 avoids outside water to enter into radar wiring department and the installation box inside from mounting panel through-hole 111.

As shown in fig. 7-8, the circuit board 2 abuts against and is attached to the supporting surface 63, the middle portion of the circuit board 2 is provided with a pad through hole 21 in interference fit with the pin 4, the edge of the circuit board is provided with a first fixing through hole 22 in clearance fit with the fixing post 62, and the pad through hole 21 is arranged in a through hole manner according to the external connector hole site; suppose that the circuit board 2 is close to one side of the base 6 is a mounting front surface 23 and one side of the upper cover 1 is a mounting back surface 25, the mounting front surface 23 is located at the edge of the pad through hole 21 and is provided with a pad 24 which avoids the pad through hole 21 and abuts against the convex corner 44.

Preferably, the radar further comprises a first screw 3 and a second screw 7 for locking connection, the first screw 3 is fixedly connected with the fixing column 62 after passing through the first fixing through hole 22, and a threaded hole matched with the first screw 3 is formed in the fixing column 62; a second screw 7 passes through the second fixing through hole 68 and then is tightly connected with the upper cover 1, and a threaded hole matched with the second screw 7 is formed in the upper cover 1; each component of radar is fixedly connected through the first screw 3 and the second screw 7, and the radar fixing device is simple in structure and convenient to install.

The specific use process of radar is:

during the installation process of the product, the external nut 10 fixedly connected with the external connector is only required to be screwed in along the external thread 65 of the installation column 64; when the product is disassembled, the external plug connector can be pulled out only by screwing out the external nut 10, so that simple and quick assembly and disassembly are realized;

when a product fails, after-sales personnel only need to carry common tools such as a screwdriver and the like for after-sales, and do not need to carry corresponding equipment such as a fusion welding machine, a welding machine and the like, so that the types and the number of the after-sales tools are reduced, and the outgoing burden of the after-sales personnel is reduced; the use of common tools enables the after-sales personnel not to be limited by the types of the tools and the incomplete tools to cause the increase of the after-sales time or the failure of after-sales; meanwhile, in the after-sale process, the circuit board 2 can be quickly disassembled and assembled, if a fault is caused by the problems of a connector or a wiring harness on the circuit board 2, the circuit board 2 can be quickly disassembled, the working space is vacated, other accessories are prevented from being damaged when the circuit board 2 is replaced, and after the fault is eliminated, the circuit board 2 is installed to the original position, so that the after-sale work is efficiently completed; if the circuit board is integrally broken down and the on-site fault can not be eliminated, the broken circuit board can be quickly taken down to replace a new circuit board, the after-sale work can be efficiently completed, and meanwhile, the broken circuit board is brought back to analyze the reason, so that the external problems and the loss are reduced to the minimum.

Example two

The welding-free assembled radar shown in fig. 1-4 and 6-10 includes a base 6, an upper cover 1 installed in cooperation with the base 6, and a circuit board 2 disposed between the base 6 and the upper cover 1, wherein a plurality of pins 4 are arranged in the middle of the base 6, the pins 4 are in interference fit with the circuit board 2 and are integrally needle-shaped, each pin 4 includes a shoulder 48, and an elastic portion 47 and a connecting portion 49 formed by the shoulder 48 extending to both ends in the length direction, the elastic portion 47 is a plate-shaped structure, and a guiding end portion is provided at one end far from the shoulder 48, a through fisheye hole is formed in the plate-shaped structure in the thickness direction, the difference from the first embodiment is that, as shown in fig. 6, two straight pins 45 are longitudinally and symmetrically fixedly connected to both sides of the maximum length dimension line of the fisheye hole, the straight pin 45 is elastically deformed leftwards or rightwards in the vertical direction, and other using processes and principles are the same as those of the first embodiment.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims (10)

1. The utility model provides a exempt from radar of welding assembly, includes base (6), with upper cover (1) and setting that base (6) cooperation was installed are in circuit board (2) between base (6) and upper cover (1), its characterized in that, base (6) middle part arrange a plurality of with circuit board (2) interference fit just wholly are acicular stitch (4), every stitch (4) include shoulder (48) and by shoulder (48) extend elastic component (47) and connecting portion (49) that form to both ends respectively on length direction, wherein,

the elastic part (47) comprises at least one plate-shaped structure, a guide end part is arranged at one end far away from the shoulder part (48), a through fisheye hole is formed in the plate-shaped structure along the thickness direction, and at least one straight pin (45) capable of elastically deforming in the width direction of the plate-shaped structure is arranged in the fisheye hole;

the width of the shoulder (48) close to the end of the connecting part (49) is larger than that of the connecting part (49) so as to form a first stop step (42) in the length direction; the width of the shoulder (48) near the end of the elastic part (47) is greater than the width of the elastic part (47) to form a second stop step (43) in the length direction, and the second stop step (43) forms a convex angle (44) in the direction facing near the elastic part (47) extending in the width direction.

2. A weld-free assembled radar as claimed in claim 1, wherein: the straight pin (45) is transversely and fixedly connected with two ends of the line of the maximum width dimension of the fisheye hole.

3. A weld-free assembled radar as claimed in claim 1, wherein: the two straight contact pins (45) are longitudinally and symmetrically fixedly connected to two sides of the maximum length dimension line of the fisheye hole.

4. A weld-free assembled radar as claimed in claim 1, wherein: the middle part of the base (6) extends towards two sides to form a coaxial injection molding platform (61) and a mounting column (64) respectively, and a fixing column (62) and a second fixing through hole (68) for locking connection and a supporting surface (63) for supporting the circuit board (2) are arranged on the edges of the base;

external screw thread (65) and inside formation are seted up in erection column (64) outside and are used for cooperating the erection column blind hole (66) of external connector, lie in on base (6) and mounting panel (11) junction a week seted up waterproof recess (67).

5. The weld-free assembled radar of claim 4, wherein: the radar also comprises a mounting plate (11) fixedly connected with the base (6), and a flat pad (9) and an external nut (10) which are matched with the mounting column (64);

the middle part of the mounting plate (11) is provided with a mounting plate through hole (111) for penetrating through the mounting column (64); the flat gasket (9) is sleeved on the outer side of the mounting column (64) and is positioned between the mounting plate (11) and the external nut (10); the external nut (10) is in threaded connection with an external thread (65) of the mounting column (64), and the external nut (10) is fixedly connected with the external connector.

6. The weld-free assembled radar of claim 5, wherein: the radar also comprises a first sealing ring (5) and a second sealing ring (8) which are used for sealing and preventing water, wherein the first sealing ring (5) is embedded between the base (6) and the upper cover (1), and the second sealing ring (8) is embedded between the base (6) and the mounting plate (11) and sleeved with the outer side of the mounting column (64).

7. The weld-free assembled radar of claim 4, wherein: circuit board (2) with holding surface (63) support and lean on the laminating, circuit board (2) middle part seted up with stitch (4) interference fit's pad through-hole (21) and border seted up with fixed column (62) clearance fit's first fixed through-hole (22), assume that circuit board (2) are close to the one side of base (6) is positive (23), is close to for the installation the one side of upper cover (1) is installation reverse side (25), installation front (23) are located pad through-hole (21) edge is provided with avoids pad through-hole (21) and with pad (24) that protruding closed angle (44) support and lean on.

8. The weld-free assembled radar of claim 7, wherein: elastic part (47) of stitch (4) are located a word contact pin (45) department with pad through-hole (21) interference fit, shoulder (48) of stitch (4) are located between circuit board (2) and the platform of moulding plastics (61), place in connecting portion (49) of stitch (4) erection column blind hole (66).

9. The weld-free assembled radar of claim 8, wherein: first end position step (42) top tightly platform (61) of moulding plastics is kept away from the terminal surface of erection column (64) one end, the second ends position step (43) top tightly pad (24), connecting portion (49) are kept away from the one end of shoulder (48) is provided with cone angle (41) that are used for the direction, is close to the first one end of ending position step (42) is provided with outside convex barb (46), barb (46) top tightly platform (61) of moulding plastics is close to the terminal surface of erection column (64) one end.

10. A weld-free equipped radar according to any one of claims 1 to 9, wherein: the base (6), the pins (4), the injection platform (61) and the fixing columns (62) are of an integral injection molding structure; the shoulder part (48), the elastic part (47) and the connecting part (49) are of an integral punching/upsetting forming structure.

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