Airtightness detection device for vehicle-mounted antenna

Abstract

The utility model provides an air tightness detection device for a vehicle-mounted antenna. The air tightness detection device comprises a mold, a pressing piece and a driving assembly. The top side of the mold is provided with an assembling surface, the assembling surface is provided with a concave cavity, the concave cavity is provided with an opening in the assembling surface, and the mold is used for abutting against the bottom end of the vehicle-mounted antenna, so that the vehicle-mounted antenna is matched with the cavity wall of the concave cavity to form a sealing cavity; the sealing cavity is used for being communicated with an output air pipe of an air tightness comprehensive detector; the pressing pieces are arranged on the upper side of the mold at intervals; the driving assembly can drive the pressing piece so that the pressing piece can be close to or away from the assembling face, and the pressing piece can abut against the top end of the vehicle-mounted antenna on the assembling face. The air tightness detection device can detect the air tightness between the sealing ring of the vehicle-mounted antenna and the mold, gas can enter the vehicle-mounted antenna through the hole site of the connecting cable on the bottom plate of the vehicle-mounted antenna, and the air tightness between the shell and the bottom plate can also be detected, so that whether the air tightness of the vehicle-mounted antenna is qualified or not is judged.

Description

Technical Field

[0001] The present application relates to the technical field of antenna air tightness detection, and in particular to an air tightness detection device for a vehicle-mounted antenna. Background Art

[0002] The purpose of airtightness testing for vehicle antennas is to verify that they are adequately sealed to prevent the ingress of external impurities such as moisture, dust, and water, while also preventing damage to internal electrical components. The structure of a vehicle antenna primarily consists of a housing, baseplate, and sealing ring. The housing and baseplate are sealed together. Due to product design or user needs, some vehicle antenna products require connecting cables to be routed through the interior of the housing and baseplate. For example, holes may be provided in the baseplate to allow the connecting cables to exit the vehicle antenna product through these holes. However, due to the presence of these holes in the baseplate, the entire vehicle antenna structure cannot be independently sealed. Therefore, these products are designed as semi-enclosed vehicle antennas. A sealing ring is fixed to the baseplate of these semi-enclosed vehicle antennas, which abut the mounting surface of the user terminal. This seal, the mounting surface of the user terminal, the baseplate, and the housing form a sealed space, thus ensuring a waterproof effect. Currently, airtightness testing equipment for vehicle antennas is typically designed for fully enclosed antennas; testing for semi-enclosed antennas is not designed. Utility Model Content

[0003] The present application provides an air tightness detection device for a vehicle-mounted antenna, which can solve the problem in the prior art that there is no design for air tightness testing of semi-enclosed antenna products.

[0004] In order to solve the above technical problems, the present application provides an airtightness detection device for a vehicle-mounted antenna, comprising a mold, a pressing member, and a driving assembly. The top side of the mold has an assembly surface, a recessed cavity is provided on the assembly surface, and the recessed cavity has an opening on the assembly surface. The mold is used to abut against the bottom end of the vehicle-mounted antenna so that the vehicle-mounted antenna and the cavity wall of the recessed cavity cooperate to form a sealed cavity; the sealed cavity is used to connect the output air pipe of the comprehensive airtightness tester; the pressing members are arranged at intervals on the upper side of the mold; the driving assembly can drive the pressing members to move the pressing members closer to or away from the assembly surface. When the pressing members are close to the assembly surface, the pressing members can abut against the top end of the vehicle-mounted antenna on the assembly surface to press the vehicle-mounted antenna against the assembly surface.

[0005] In one embodiment, the pressing member includes a column, and the axis of the column is perpendicular to the assembly surface.

[0006] In one embodiment, the clamping member also includes a connecting plate, which is fixedly connected to the end of the column away from the mold, and the axis of the connecting plate is parallel to the axis of the column. The driving assembly is used to drive the connecting plate to move back and forth in a straight line, so that the connecting plate can drive the column to move back and forth in a straight line.

[0007] In one embodiment, the number of the columns is four, and the four columns are arranged in an array on the upper side of the assembly surface.

[0008] In one embodiment, the pressing element is disposed opposite to the mounting surface of the mold in a non-contact manner.

[0009] In one embodiment, the driving assembly is arranged on a side of the connecting plate away from the column, and the driving assembly includes a stroke-adjustable cylinder, and an output end of the stroke-adjustable cylinder is fixedly connected to the connecting plate.

[0010] In one embodiment, the air tightness detection device for the vehicle-mounted antenna also includes a box body and at least two guide pillars. The mold, guide pillars and pressing parts are all arranged inside the box body, and the axis of the guide pillars is parallel to the axis of the connecting plate; at least two guide holes are provided on the connecting plate, and each guide pillar passes through the guide holes respectively, so that the connecting plate can slide back and forth up and down relative to the guide pillars.

[0011] In one embodiment, a positioning protrusion is provided on the assembly surface, and the positioning protrusion is used to connect with the positioning hole at the bottom end of the vehicle-mounted antenna.

[0012] In one embodiment, the air tightness detection device further includes an air pipe joint, the recessed cavity is provided with a through hole, the air pipe joint is sealedly connected to the through hole, and the air pipe joint is used to connect to the output air pipe of the comprehensive air tightness detector.

[0013] In one embodiment, the air tightness detection device of the vehicle-mounted antenna also includes a first start button, a second start button and an emergency stop button. When the first start button and the second start button are both triggered, the drive component is powered on. When one of the first start button and the second start button is not triggered, the drive component is powered off. When the emergency stop button is triggered, the drive component is powered off.

[0014] The present application provides an air tightness testing device for a vehicle-mounted antenna, comprising a mold, a pressing member, and a drive assembly. The top side of the mold has an assembly surface, a recessed cavity provided on the assembly surface, and an opening on the assembly surface. The mold is used to abut against the bottom end of the vehicle-mounted antenna so that the vehicle-mounted antenna and the cavity wall of the recessed cavity cooperate to form a sealed cavity; the sealed cavity is used to connect to the output air pipe of a comprehensive air tightness tester; the pressing members are arranged at intervals on the upper side of the mold; the drive assembly can drive the pressing members to move the pressing members closer to or away from the assembly surface. When the pressing members approach the assembly surface, the pressing members can abut against the top end of the vehicle-mounted antenna on the assembly surface to press the vehicle-mounted antenna against the assembly surface. The assembly surface of the mold of the airtightness detection device can be used to simulate the installation surface of the user end. During the test, the sealing ring on the bottom end of the vehicle-mounted antenna abuts against the assembly surface, thereby simulating the installation of the vehicle-mounted antenna at the user end. The pressing part is pressed on the vehicle-mounted antenna, so that the sealing ring, the recessed cavity on the assembly surface and the vehicle-mounted antenna are enclosed to form a sealed space. When the airtightness comprehensive detector delivers gas to the sealed space, the airtightness between the sealing ring and the mold can be detected, and the gas can enter the interior of the vehicle-mounted antenna through the hole of the connecting cable on the bottom plate of the vehicle-mounted antenna. The airtightness between the outer shell and the bottom plate can also be detected, thereby judging whether the airtightness of the vehicle-mounted antenna is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of an airtightness detection device for a vehicle-mounted antenna provided in one embodiment of the present application;

[0016] Figure 2 This is a schematic structural diagram of the air tightness detection device for a vehicle-mounted antenna provided in one embodiment of the present application, with the box removed.

[0017] Description of the drawings: mold 10, assembly surface 11, recessed cavity 12, positioning protrusion 13, pressing piece 20, column 21, connecting plate 22, drive assembly 30, box 40, guide column 50, air pipe connector 60, first start button 70, second start button 80, emergency stop button 90. DETAILED DESCRIPTION

[0018] The present application is further described in detail below by means of specific embodiments in conjunction with the accompanying drawings. Similar elements in different embodiments are numbered with associated similar elements. In the following embodiments, many detailed descriptions are provided to enable the present application to be better understood. However, those skilled in the art will readily appreciate that some of the features may be omitted in different circumstances, or may be replaced by other elements, materials, or methods. In some cases, some operations related to the present application are not shown or described in the specification. This is to avoid the core portion of the present application being overwhelmed by excessive descriptions. For those skilled in the art, it is not necessary to describe these related operations in detail. They can fully understand the related operations based on the description in the specification and the general technical knowledge in the art.

[0019] In addition, the features, operations, or characteristics described in the specification may be combined in any appropriate manner to form various implementations, and the operational steps involved in each embodiment may be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a particular embodiment and do not imply a required composition and / or sequence.

[0020] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings).

[0021] The terms "parallel" and "perpendicular" are defined in terms of the current state of the art, rather than being absolutely strict definitions in a mathematical sense. A small amount of deviation is allowed, and being approximately parallel or approximately perpendicular is acceptable. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0° and 10°. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°. The directional terms mentioned in the embodiments of the present application, such as "upper", "inner", "outer", "side", etc., are only directions with reference to the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present application.

[0022] This application provides an airtightness testing device for a vehicle-mounted antenna. This airtightness testing device is used to test semi-enclosed vehicle-mounted antennas. A semi-enclosed vehicle-mounted antenna is one that, when in use, forms a sealed space with the user's mounting surface. However, when the antenna is not in contact with the user's mounting surface, the antenna itself does not form a completely sealed body due to a hole in its bottom plate for the extension of the connecting cable.

[0023] Specifically, the semi-enclosed vehicle antenna may include a shell, a base plate, a sealing ring and a connecting cable. The shell and the base plate are sealed and connected. A hole is opened on the base plate. One end of the connecting cable is arranged in the space enclosed by the shell and the base plate. The other end of the connecting cable extends out of the vehicle antenna through the hole on the base plate. A sealing ring is installed on the bottom surface of the base plate, and the hole is located inside the sealing ring in the radial direction of the base plate.

[0024] Please refer to Figure 1 and Figure 2 The airtightness detection device of the vehicle-mounted antenna includes a mold 10, a pressing part 20 and a driving assembly 30. The top side of the mold 10 has an assembly surface 11. Preferably, the assembly surface 11 is a plane. A recessed cavity 12 is provided on the assembly surface 11. The recessed cavity 12 has an opening on the assembly surface 11, that is, the opening of the recessed cavity 12 faces upward. The mold 10 is used to abut against the bottom end of the vehicle-mounted antenna so that the vehicle-mounted antenna cooperates with the cavity wall of the recessed cavity 12 to form a sealed cavity. Specifically, the assembly surface 11 is used to abut against the sealing ring on the bottom plate of the vehicle-mounted antenna so that the sealing ring, the outer shell, the bottom plate and the cavity wall of the recessed cavity 12 cooperate to form a sealed cavity. The sealed cavity can simulate the sealed space formed when the sealing ring of the vehicle-mounted antenna abuts against the mounting surface of the user end and cooperates with the mounting surface.

[0025] The pressing member 20 is arranged at intervals on the upper side of the mold 10, wherein the pressing member 20 is arranged opposite to the assembly surface 11 of the mold 10 in a non-contact manner, that is, the pressing member 20 does not contact the mold 10 during the entire testing process. The driving assembly 30 can drive the pressing member 20 to move the pressing member 20 closer to or away from the assembly surface 11. When the pressing member 20 approaches the assembly surface 11, the pressing member 20 can abut against the top of the vehicle antenna on the assembly surface 11 to press the vehicle antenna against the assembly surface 11. The sealed cavity is used to connect to the output air pipe of the comprehensive air tightness tester, and the comprehensive air tightness tester can inflate the sealed cavity through the output air pipe.

[0026] The assembly surface 11 of the mold 10 of the airtightness testing device can be used to simulate the installation surface of the user end. During the test, the sealing ring on the bottom end of the vehicle-mounted antenna abuts against the assembly surface 11, so that the installation of the vehicle-mounted antenna at the user end can be simulated. The pressing part 20 is pressed on the vehicle-mounted antenna, so that the sealing ring, the recessed cavity 12 on the assembly surface 11 and the vehicle-mounted antenna are enclosed to form a sealed space. When the airtightness comprehensive tester delivers gas to the sealed space, the airtightness between the sealing ring and the mold 10 can be detected, and the gas can enter the interior of the vehicle-mounted antenna through the hole of the connecting cable on the bottom plate of the vehicle-mounted antenna. The airtightness between the outer shell and the bottom plate can also be detected, thereby judging whether the airtightness of the vehicle-mounted antenna is qualified.

[0027] The present application adopts a clamping part 20 to clamp the vehicle-mounted antenna on the mold 10. Compared with the manual fixing method of locking the vehicle-mounted antenna on the mold 10 with bolts, when manual bolt fixing is adopted, the fixing screw holes on the mold 10 are easily damaged due to wear after long-term use, thereby requiring the mold 10 to be replaced, which increases the cost of the mold 10, and the bolts need to be disassembled and assembled before and after each inspection. The operation method is complicated, the labor time loss is high, the work efficiency is low, and the labor cost is increased. The present application adopts a clamping part 20 to clamp the vehicle-mounted antenna on the mold 10. The clamping part 20 is driven to move by the driving component 30. For the operator, only the air tightness detection device needs to be started to realize that the driving component 30 automatically drives the clamping part 20 to seal the vehicle-mounted antenna with the mold 10. Therefore, there is no need to set fixing screw holes on the mold 10, which reduces the loss of the mold 10, reduces the cost of the mold 10, simplifies the operator's operating steps, reduces labor costs, and improves production efficiency.

[0028] In one embodiment, if Figure 1 and Figure 2 As shown, the pressing member 20 includes a column 21, the axis of which is perpendicular to the assembly surface 11. The column 21 can be, for example, cylindrical or cubic. The column 21 is spaced apart from the mold 10, and is positioned above the mold 10. The column 21 is configured to abut the vehicle antenna to press the vehicle antenna against the mold 10.

[0029] In one embodiment, the clamping member 20 also includes a connecting plate 22, which is fixedly connected to the end of the column 21 away from the mold 10. The axis of the connecting plate 22 is parallel to the axis of the column 21. The driving assembly 30 is used to drive the connecting plate 22 to move back and forth in a straight line, so that the connecting plate 22 can drive the column 21 to move back and forth in a straight line. Both the connecting plate 22 and the column 21 move back and forth in a straight line along the axis of the connecting plate 22, so that the column 21 approaches or moves away from the mold 10 to tighten or loosen the vehicle antenna on the mold 10.

[0030] In one embodiment, there are four columns 21 arranged in an array above the mounting surface 11. This arrangement allows the columns 21 to compress the vehicle antenna from various locations. In other embodiments, the portion of the pressing member 20 that contacts the vehicle antenna may also be an annular structure. The columns 21 may be made of stainless steel to resist damage.

[0031] In one embodiment, the drive assembly 30 is disposed on a side of the connecting plate 22 away from the column 21. The drive assembly 30 includes an adjustable-stroke cylinder, the output end of which is fixedly connected to the connecting plate 22. The adjustable-stroke cylinder may include a cylinder and an adjustable-stroke nut, wherein the adjustable nut can adjust the stroke of the adjustable-stroke cylinder.

[0032] In one embodiment, the air tightness detection device for the vehicle-mounted antenna also includes a box body 40 and at least two guide posts 50. The box body 40 has a built-in control circuit, and the control circuit is electrically connected to the air tightness comprehensive detector. The mold 10, the guide posts 50, and the pressing member 20 are all arranged inside the box body 40. Preferably, there are four guide posts 50, and the four guide posts 50 are arranged in an array in the box body 40. The axis of the guide post 50 is parallel to the axis of the connecting plate 22. The connecting plate 22 is provided with at least two guide holes, and each guide post 50 passes through the guide hole, so that the connecting plate 22 can slide back and forth relative to the guide post 50. By slidingly connecting the connecting plate 22 and the guide post 50, the guide post 50 can limit the connecting plate 22, so that the up and down reciprocating motion of the connecting plate 22 can be smoother.

[0033] In one embodiment, a positioning protrusion 13 is provided on the assembly surface 11. The positioning protrusion 13 is configured to engage with a positioning hole at the bottom end of the vehicle-mounted antenna. Typically, the base plate of a vehicle-mounted antenna is provided with a positioning hole. During installation of the vehicle-mounted antenna and the user terminal, bolts are inserted through the positioning holes to secure the vehicle-mounted antenna to the user terminal. However, during the testing process of this application, since a clamping member 20 is provided to hold the vehicle-mounted antenna in place, bolts are not required to pass through the positioning holes. Instead, the positioning protrusion 13 can be inserted into the positioning hole to secure the vehicle-mounted antenna to the mold 10.

[0034] In one embodiment, if Figure 2 As shown, the air tightness detection device also includes an air pipe connector 60. The recessed cavity 12 is provided with a through hole. The air pipe connector 60 is sealed and connected to the through hole. The air pipe connector 60 is used to connect the output air pipe of the air tightness comprehensive detector so that the air tightness comprehensive detector can transport gas into the recessed cavity 12.

[0035] In one embodiment, if Figure 1As shown, the airtightness testing device for a vehicle-mounted antenna also includes a first start button 70, a second start button 80, and an emergency stop button 90. When both the first start button 70 and the second start button 80 are triggered, the drive assembly 30 is energized. When either the first start button 70 or the second start button 80 is not triggered, the drive assembly 30 is de-energized. When the emergency stop button 90 is triggered, the drive assembly 30 is de-energized. During testing, the user is required to simultaneously press the first start button 70 and the second start button 80 with both hands to activate the test device. This prevents the safety hazard of a user controlling the start-up with one hand while the other hand is inside the housing 40. The provision of the emergency stop button 90 further ensures safety during testing.

[0036] In one embodiment, the air tightness detection device of the vehicle-mounted antenna may further include a hand-push air source switch valve and an air source processor to control the switch of the air cylinder. The air tightness detection device of the vehicle-mounted antenna may further include an electromagnetic valve, which may control the on-off of the air path between the air tightness detection device and the comprehensive air tightness detector.

[0037] Before the air tightness test, it is necessary to first connect the power signal line of the air tightness testing device to the comprehensive air tightness tester; then connect the output air pipe of the comprehensive air tightness tester to the air pipe joint 60 of the mold 10 of the air tightness testing device; then connect the output air pipe of the air compressor to the comprehensive air tightness tester; then turn on the power switch of the comprehensive air tightness tester; then enter the parameter setting page of the comprehensive air tightness tester and set the relevant test parameters.

[0038] After the test parameters of the air tightness comprehensive tester are set, the vehicle-mounted antenna is first placed flat on the mold 10, and the vehicle-mounted antenna is positioned by the positioning protrusion 13 on the mold 10; by operating with both hands, press the first start button 70 and the second start button 80 at the same time, the cylinder starts to move, pushing the clamping part 20 downward, and when the clamping part 20 is in place, the clamping part 20 will press the vehicle-mounted antenna tightly on the mold 10, so that the vehicle-mounted antenna and the mold 10 form a sealed space, and the air tightness comprehensive tester starts to inflate the sealed space formed by the mold 10 and the vehicle-mounted antenna → balance the air pressure → maintain pressure and analyze → end → exhaust. When the air tightness comprehensive tester finishes the test, the cylinder starts to move, pulling the clamping part 20 upward to move.

[0039] The above examples are used to illustrate the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, modifications or substitutions can be made based on the ideas of the present invention.

Claims

1. An airtightness detection device for a vehicle-mounted antenna, characterized in that: include: A mold, wherein the top side of the mold has an assembly surface, the assembly surface is provided with a recessed cavity, and the recessed cavity has an opening on the assembly surface. The mold is used to abut the bottom end of the vehicle-mounted antenna so that the vehicle-mounted antenna cooperates with the cavity wall of the recessed cavity to form a sealed cavity; the sealed cavity is used to connect to the output air pipe of the comprehensive air tightness tester; A pressing member, the pressing members are arranged at intervals on the upper side of the mold; And a driving component, which can drive the pressing part to move the pressing part closer to or away from the assembly surface. When the pressing part approaches the assembly surface, the pressing part can abut against the top of the vehicle antenna on the assembly surface to press the vehicle antenna onto the assembly surface.

2. The airtightness detection device for a vehicle-mounted antenna according to claim 1, characterized in that: The pressing member includes a column, and the axis of the column is perpendicular to the assembly surface.

3. The airtightness detection device for a vehicle-mounted antenna according to claim 2, characterized in that: The clamping member also includes a connecting plate, which is fixedly connected to the end of the column away from the mold. The axis of the connecting plate is parallel to the axis of the column. The driving assembly is used to drive the connecting plate to move back and forth in a straight line so that the connecting plate can drive the column to move back and forth in a straight line.

4. The airtightness detection device for a vehicle-mounted antenna according to claim 2, characterized in that: The number of the columns is four, and the four columns are arranged in an array on the upper side of the assembly surface.

5. The airtightness detection device for a vehicle-mounted antenna according to claim 1, characterized in that: The pressing member is arranged opposite to the assembly surface of the mold in a non-contact manner.

6. The airtightness detection device for a vehicle-mounted antenna according to claim 3, characterized in that: The driving assembly is arranged on a side of the connecting plate away from the column, and the driving assembly includes a stroke-adjustable cylinder, and an output end of the stroke-adjustable cylinder is fixedly connected to the connecting plate.

7. The airtightness detection device for a vehicle-mounted antenna according to claim 3, characterized in that: It also includes a box body and at least two guide pillars, the mold, the guide pillars and the pressing piece are all arranged inside the box body, the axis of the guide pillars is parallel to the axis of the connecting plate; at least two guide holes are provided on the connecting plate, and each of the guide pillars passes through the guide holes respectively, so that the connecting plate can slide back and forth up and down relative to the guide pillars.

8. The airtightness detection device for a vehicle-mounted antenna according to claim 1, characterized in that: A positioning protrusion is provided on the assembly surface, and the positioning protrusion is used to connect with the positioning hole at the bottom end of the vehicle-mounted antenna.

9. The airtightness detection device for a vehicle-mounted antenna according to claim 1, characterized in that: It also includes an air pipe joint, the recessed cavity is provided with a through hole, the air pipe joint is sealed and connected to the through hole, and the air pipe joint is used to connect the output air pipe of the comprehensive air tightness detector.

10. The airtightness detection device for a vehicle-mounted antenna according to claim 1, characterized in that: The device further comprises a first start button, a second start button and an emergency stop button, wherein when both the first start button and the second start button are triggered, the drive component is powered on, and when one of the first start button and the second start button is not triggered, the drive component is powered off; When the emergency stop button is triggered, the drive assembly is powered off.

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