Air tightness detection positioning tool for condenser
By using the support and drive components of the positioning fixture, and with the use of electromagnets and silicone pads for cushioning, the problem of damage caused by friction with the table surface during condenser testing is solved, achieving stable positioning of the condenser and ensuring assembly accuracy and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-14
AI Technical Summary
During the condenser airtightness test, the condenser is in direct contact with the workbench surface, which can easily cause the fins to bend, deform, or the pipeline to be damaged, affecting the assembly accuracy and aesthetics.
The positioning fixture includes a positioning platform, a support positioning component, and a drive component. An electromagnet is used to attract the positioning plate and the silicone pad for cushioning, which prevents the condenser from rubbing against the platform. The position of the positioning component is adjusted by the drive motor to achieve stable positioning of the condenser.
This avoids damage to the condenser caused by displacement during the testing process, ensuring assembly accuracy and heat dissipation performance, while also improving the product's aesthetics.
Smart Images

Figure CN224122101U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of condenser positioning fixture technology, specifically a condenser airtightness testing positioning fixture. Background Technology
[0002] Condenser airtightness testing is a critical quality control process that uses specialized methods to check condensers (such as those in air conditioners, refrigerators, and automotive refrigeration systems) for leaks, ensuring that the internal media (such as refrigerant or compressed air) will not leak under specified pressure. This testing directly affects the performance, energy consumption, and lifespan of the refrigeration system, and is a core step in manufacturing, repair, and maintenance. Currently, the conventional procedure for testing condenser airtightness involves filling the condenser with gas at a specified pressure, holding it for a period, and then determining whether the airtightness meets the standards based on the pressure change.
[0003] However, currently, during the inflation process, the condenser is in direct contact with the workbench surface, which poses numerous hidden dangers. Due to the rough material of the workbench surface or residual impurities, the condenser is prone to friction with the surface when it is placed, adjusted, or slightly displaced during high-pressure gas inflation. This can cause the fins on its surface to bend, deform, or even break, and the pipes may also suffer dents and scratches due to impacts. These damages not only affect the subsequent assembly accuracy of the condenser and reduce its heat dissipation performance, but also detract from the product's aesthetic appearance. Therefore, a condenser airtightness testing and positioning fixture is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a positioning fixture for condenser airtightness testing, in order to solve the problem mentioned in the background art that during the current inflation process, the condenser is in direct contact with the workbench surface, which is very easy to cause friction with the workbench surface, resulting in the fins on its surface being bent, deformed, or even damaged, and the pipeline may also have dents and scratches due to collisions.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a condenser airtightness testing positioning fixture, including a positioning platform, on which two support positioning components are symmetrically arranged. Each support positioning component includes a support platform, a positioning plate, a silicone pad, an electromagnet, an L-shaped limiting plate, a spring, two guide columns, and a connecting seat.
[0006] The silicone pad is adhered to the inner top wall of the positioning plate. The positioning plate is U-shaped. The support platform is located inside the positioning plate. The two guide pillars are symmetrically fixedly connected to the lower surface of the support platform. The spring is sleeved on the outer side wall of the guide pillar. The electromagnet is installed on the lower surface of the support platform through an L-shaped limiting plate. The connecting seat is fixedly connected to the lower surface of the support platform. The positioning plate is slidably connected to the outer side wall of the two guide pillars. The electromagnet is magnetically attracted to the lower surface of the positioning plate.
[0007] Preferably, the top end of the spring abuts against the lower surface of the positioning plate, and the bottom end of the spring abuts against the bottom end of the guide post.
[0008] Preferably, the positioning stage described above is internally provided with a drive assembly, which includes two sliders, a double-ended lead screw, a drive motor, and two slides.
[0009] Two grooves are symmetrically formed on the upper surface of the positioning platform, two sliders are symmetrically slidably connected to the inner sidewalls of the two grooves, and the double-ended lead screw is fixedly connected to the outer sidewall of the drive motor.
[0010] Preferably, the two sliders are symmetrically threaded to the outer wall of the double-ended lead screw, which is rotatably connected to the inside of the positioning platform.
[0011] Preferably, the drive motor described above is mounted on one side of the positioning platform.
[0012] Preferably, the connecting seat is fixedly connected to the upper surface of the slider, and four positioning suction cups are symmetrically installed on the lower surface of the positioning platform.
[0013] Preferably, a condenser is provided above the positioning platform, and an mounting plate is installed on the condenser.
[0014] Preferably, the lower surface of the mounting plate is attached to the upper surface of the support platform, and the positioning plate is attached to the upper surface of the mounting plate by a silicone pad.
[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0016] This invention uses an electromagnet to magnetically attract the positioning plate, causing it to move downwards and contact the mounting plate via a silicone pad. This positioning of the condenser is achieved. After the test is completed, the electromagnet is de-energized, and a spring pushes the positioning plate upwards, causing it to move upwards. Simultaneously, the drive motor reverses, causing the two positioning plates to move away from each other, allowing the condenser to be removed. Compared to existing technologies, this invention achieves condenser positioning through a support positioning assembly. During placement, adjustment, or high-pressure gas filling, the condenser will not shift, thus preventing friction with the work surface and collisions with the piping. This prevents damage to the condenser and ensures subsequent assembly accuracy, heat dissipation performance, and product aesthetics. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is an exploded view of the structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the support and positioning component structure of this utility model;
[0021] Figure 4 This is a schematic diagram showing the installation position of the L-shaped limiting plate of this utility model;
[0022] Figure 5 This is an exploded view of the support and positioning component structure of this utility model;
[0023] Figure 6 This is a schematic diagram of the drive component structure of this utility model.
[0024] Explanation of reference numerals in the attached drawings: 101, Support and positioning assembly; 11, Support platform; 12, Positioning plate; 13, Silicone pad; 14, Electromagnet; 15, L-shaped limiting plate; 16, Spring; 17, Guide post; 18, Connecting seat; 301, Drive assembly; 31, Slider; 32, Double-ended lead screw; 33, Drive motor; 35, Slide groove; 41, Positioning platform; 42, Condenser; 43, Mounting plate; 44, Positioning suction cup. Detailed Implementation
[0025] 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.
[0026] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0027] Example
[0028] In current technology, the condenser is in direct contact with the workbench surface during the inflation process, which poses numerous hidden dangers. Due to the rough material of the workbench surface or residual impurities, the condenser is prone to friction with the surface when it is placed, adjusted, or slightly displaced during the inflation of high-pressure gas. This can cause the fins on its surface to bend, deform, or even break, and the pipes may also suffer dents and scratches from the impact. These damages not only affect the subsequent assembly accuracy of the condenser and reduce its heat dissipation performance, but also detract from the product's aesthetic appearance.
[0029] Please see Figures 1-6 This utility model provides a technical solution: a condenser airtightness testing and positioning fixture, including a positioning platform 41, on which two support positioning components 101 are symmetrically arranged. The support positioning components 101 are used to position the condenser 42. When the condenser 42 is placed, adjusted, or filled with high-pressure gas, the condenser 42 will not be displaced, and thus will not rub against the platform. The pipeline will not collide, and the condenser 42 will not be damaged, thus ensuring the subsequent assembly accuracy, heat dissipation performance, and product aesthetics.
[0030] A condenser 42 is disposed above the positioning platform 41, and an mounting plate 43 is installed on the condenser 42. The mounting plate 43 is part of the condenser 42 body and is used to install the condenser 42.
[0031] The support and positioning assembly 101 includes a support platform 11, a positioning plate 12, a silicone pad 13, an electromagnet 14, an L-shaped limiting plate 15, a spring 16, two guide posts 17, and a connecting seat 18.
[0032] The silicone pad 13 is bonded to the inner top wall of the positioning plate 12. The positioning plate 12 is U-shaped, and the support platform 11 is located inside the positioning plate 12. The positioning plate 12 is attached to the upper surface of the mounting plate 43 through the silicone pad 13. Thus, the silicone pad 13 can play a buffering and protective role to prevent damage to the mounting plate 43.
[0033] The lower surface of the mounting plate 43 is attached to the upper surface of the support platform 11. The support platform 11 can support the mounting plate 43, thereby preventing the mounting plate 43 from directly contacting the operating table.
[0034] Two guide posts 17 are symmetrically fixedly connected to the lower surface of the support platform 11. An electromagnet 14 is installed on the lower surface of the support platform 11 through an L-shaped limiting plate 15. A connecting seat 18 is fixedly connected to the lower surface of the support platform 11. A positioning plate 12 is slidably connected to the outer side wall of the two guide posts 17. The guide posts 17 can guide and limit the positioning plate 12 so that the positioning plate 12 can be raised and lowered vertically. The electromagnet 14 is magnetically attracted to the lower surface of the positioning plate 12. When positioning the condenser 42, the electromagnet 14 magnetically attracts the positioning plate 12. When the positioning plate 12 moves downward, it contacts the mounting plate 43 through the silicone pad 13, thereby achieving the positioning of the condenser 42.
[0035] In this embodiment, specifically: the spring 16 is sleeved on the outer side wall of the guide post 17, the top end of the spring 16 abuts against the lower surface of the positioning plate 12, and the bottom end of the spring 16 abuts against the bottom end of the guide post 17. In the initial state, the electromagnet 14 is de-energized, the spring 16 pushes the positioning plate 12 upward, and the positioning plate 12 moves upward, thereby reserving the installation space for the mounting plate 43.
[0036] When positioning the condenser 42, the positioning plate 12 moves downward and the spring 16 is compressed. After the airtightness test of the condenser 42 is completed, the electromagnet 14 is de-energized and the spring 16 pushes the positioning plate 12 upward. At this time, the condenser 42 can be removed.
[0037] In this embodiment, specifically: the positioning stage 41 is provided with a drive assembly 301, which includes two sliders 31, a double-ended lead screw 32, a drive motor 33 and two slide grooves 35;
[0038] Two slide grooves 35 are symmetrically opened on the upper surface of the positioning platform 41, and two sliders 31 are symmetrically slidably connected to the inner sidewalls of the two slide grooves 35. The position of the sliders 31 can be limited by the slide grooves 35.
[0039] The double-ended lead screw 32 is fixedly connected to the outer wall of the drive motor 33. Two sliders 31 are symmetrically threaded to the outer wall of the double-ended lead screw 32. The double-ended lead screw 32 is rotatably connected to the inside of the positioning table 41. The drive motor 33 is installed on one side of the positioning table 41. During operation, the drive motor 33 drives the double-ended lead screw 32 to rotate. The double-ended lead screw 32 drives the two sliders 31 through the threads. The two sliders 31 move closer to the center of the positioning table 41 at the same time, thereby adjusting the position of the two support positioning components 101.
[0040] In this embodiment, specifically: the connecting seat 18 is fixedly connected to the upper surface of the slider 31, and the slider 31 can be connected to the support platform 11 through the connecting seat 18;
[0041] Four positioning suction cups 44 are symmetrically installed on the lower surface of the positioning stage 41, which can enhance the stability of the positioning stage 41.
[0042] The working principle or structural principle is as follows: the condenser 42 is placed on the surface of two support platforms 11. The drive motor 33 drives the double-ended lead screw 32 to rotate. The double-ended lead screw 32 drives two sliders 31 through the thread. The two sliders 31 move towards the center of the positioning platform 41 at the same time, thereby moving the two positioning plates 12 to the outside of the mounting plate 43. Then, the electromagnet 14 magnetically attracts the positioning plates 12, and the positioning plates 12 move downward. The positioning plates 12 contact the mounting plate 43 through the silicone pad 13, thus achieving the positioning of the condenser 42. The airtightness of the condenser 42 can be tested. After the test is completed, the electromagnet 14 is de-energized, the spring 16 pushes the positioning plates 12 upward, and the positioning plates 12 move upward. At the same time, the drive motor 33 reverses, and the two positioning plates 12 move away from each other. At this time, the condenser 42 can be removed.
[0043] In summary, this utility model, by setting the drive component 301, can adjust the position of the two support and positioning components 101, so that the mounting plate 43 of the condenser 42 can be moved into the positioning plate 12. The support and positioning components 101 can achieve the positioning of the condenser 42. When placing, adjusting the position or filling with high-pressure gas, the condenser 42 will not be displaced, and thus will not rub against the table surface, and the pipeline will not collide. The condenser 42 will not be damaged, ensuring the subsequent assembly accuracy, heat dissipation performance and product aesthetics.
[0044] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. A condenser airtightness testing positioning fixture, including a positioning stage (41), characterized in that: Two support positioning components (101) are symmetrically arranged on the positioning platform (41). The support positioning components (101) include a support platform (11), a positioning plate (12), a silicone pad (13), an electromagnet (14), an L-shaped limiting plate (15), a spring (16), two guide columns (17) and a connecting seat (18). The silicone pad (13) is bonded to the inner top wall of the positioning plate (12). The positioning plate (12) is U-shaped. The support platform (11) is located inside the positioning plate (12). The two guide columns (17) are symmetrically fixedly connected to the lower surface of the support platform (11). The spring (16) is sleeved on the outer side wall of the guide column (17). The electromagnet (14) is installed on the lower surface of the support platform (11) through the L-shaped limiting plate (15). The connecting seat (18) is fixedly connected to the lower surface of the support platform (11). The positioning plate (12) is slidably connected to the outer side wall of the two guide columns (17). The electromagnet (14) is magnetically attracted to the lower surface of the positioning plate (12).
2. The condenser airtightness testing positioning fixture according to claim 1, characterized in that: The top end of the spring (16) abuts against the lower surface of the positioning plate (12), and the bottom end of the spring (16) abuts against the bottom end of the guide post (17).
3. The condenser airtightness testing positioning fixture according to claim 1, characterized in that: The positioning stage (41) is equipped with a drive assembly (301), which includes two sliders (31), a double-ended lead screw (32), a drive motor (33), and two slides (35). Two grooves (35) are symmetrically opened on the upper surface of the positioning platform (41), two sliders (31) are symmetrically slidably connected to the inner sidewalls of the two grooves (35), and the double-headed lead screw (32) is fixedly connected to the outer sidewall of the drive motor (33).
4. The condenser airtightness testing positioning fixture according to claim 3, characterized in that: The two sliders (31) are symmetrically threaded to the outer wall of the double-ended lead screw (32), which is rotatably connected to the inside of the positioning table (41).
5. The condenser airtightness testing positioning fixture according to claim 4, characterized in that: The drive motor (33) is mounted on one side of the positioning platform (41).
6. The condenser airtightness testing positioning fixture according to claim 3, characterized in that: The connecting seat (18) is fixedly connected to the upper surface of the slider (31), and four positioning suction cups (44) are symmetrically installed on the lower surface of the positioning platform (41).
7. The condenser airtightness testing positioning fixture according to claim 1, characterized in that: A condenser (42) is provided above the positioning platform (41), and an mounting plate (43) is installed on the condenser (42).
8. The condenser airtightness testing positioning fixture according to claim 7, characterized in that: The lower surface of the mounting plate (43) is attached to the upper surface of the support platform (11), and the positioning plate (12) is attached to the upper surface of the mounting plate (43) via a silicone pad (13).