Universal adjustable tool for helium detection of single-buckle type automobile air conditioner heat exchanger core
By designing a single-button universal adjustable tool for helium inspection of automobile air-conditioning heat exchanger cores and utilizing the adjustment of clamping locks and sealing components, the problem of a wide variety of helium inspection tooling was solved, thereby achieving cost reduction and improved production efficiency.
Patent Information
- Application Number
- CN202423014401.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-07
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-07
AI Technical Summary
The wide variety of existing helium inspection tooling for automotive air-conditioning heat exchangers leads to high outsourcing costs, large space requirements, easy mixing, and reduced production efficiency. Each new product needs to be redesigned, which is time-consuming and labor-intensive.
A single-button universal adjustable tooling for helium inspection of automotive air-conditioning heat exchanger cores is designed. The tooling adopts a clamping lock, a fixed handle and an elastic part. By adjusting the mounting block and the sealing component, it can adapt to the inlet or outlet of different types of pressure plates/connectors, achieving adaptive sealing of various structural shapes and sizes.
It reduces the number of helium inspection tooling varieties, lowers outsourcing processing costs, saves storage space, avoids mixing problems, improves production efficiency, and reduces new product design time and costs.
Smart Images
Figure CN223389380U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of heat exchanger core detection, and in particular to a universally adjustable tooling for helium detection of a single-button automobile air-conditioning heat exchanger core. Background Art
[0002] To ensure the sealing quality of heat exchangers (including condensers and evaporators), a 100% helium test is typically performed on the heat exchanger core using a leak detection tool. The ends of the heat exchanger core are typically equipped with pressure plates / connectors, each with an inlet or outlet. Existing helium test tools use a corresponding sealing plug for each pressure plate / connector, which connects to the inlet or outlet on the pressure plate / connector.
[0003] During the development and production of automotive air conditioning system assemblies, requirements for the shape, center-to-center distance, and thickness of the pressure plate at the inlet and outlet interfaces of air conditioning heat exchangers vary significantly depending on the vehicle model, resulting in a large variety of heat exchanger products. Currently, there are over 200 common heat exchanger specifications on the market. Each pressure plate / connector has a different structural shape, center-to-center distance, and thickness, necessitating a different helium test fixture for leak detection. This results in a wide variety of helium test fixtures, resulting in high outsourcing costs and the need for a large number of fixture racks for storage, occupying a large production area. Furthermore, similar fixtures with similar dimensions can easily be mixed up if not carefully considered. Finding the corresponding fixture when changing product models is time-consuming, impacting production efficiency. Furthermore, each new product requires engineers to design and re-process new helium test fixtures, which is time-consuming, labor-intensive, and costly, thus requiring improvement. Utility Model Content
[0004] This application provides a single-button automobile air-conditioning heat exchanger core helium inspection universal adjustable tooling to improve the following technical problems:
[0005] Since there are more than 200 common specifications of heat exchangers, there are many types of helium inspection tooling, and the cost of outsourcing is very high. In addition, a large number of tooling racks are required for storage, which takes up a large production site. At the same time, similar tooling with small size differences can easily be mixed up if not paid attention to. It is also time-consuming to find the corresponding tooling when the variety is changed, which affects production efficiency. Every time a new product is launched, engineers must be arranged to design new helium inspection tooling and reprocess it, which is time-consuming and labor-intensive, and the investment cost is relatively high, so there is room for improvement.
[0006] The present application provides a single-button automobile air-conditioning heat exchanger core helium inspection universal adjustable tooling, which adopts the following technical solutions:
[0007] A single-button universal adjustable tool for helium inspection of a heat exchanger core of an automobile air conditioner comprises a fixing seat, a clamping lock, a fixing handle and an elastic member, wherein the middle portion of the clamping lock is hinged to one side of the fixing seat, and the fixing handle is fixed to the other side of the fixing seat; the end portion of the clamping lock is provided with a locking hook adapted to the pressure plate / joint on the heat exchanger core; the elastic member is provided between the middle portion of the clamping lock and the fixing handle; the elastic member is used to drive the locking hook to fasten and fix it inward on the pressure plate / joint; the locking hook and the elastic member are respectively located on opposite sides of the fixing seat; the other side of the fixing seat is also horizontally slidably equipped with a mounting block, and the mounting block is vertically adjustably equipped with a blocking assembly, and the blocking assembly is used to connect the inlet or outlet on the pressure plate / joint.
[0008] In a feasible technical solution of the present application, the sealing assembly includes a threaded rod, a plug and a sealing ring. The threaded rod is arranged vertically and threadedly assembled and passes through the mounting block. The plug is fixed on the top of the threaded rod, and the sealing ring is sleeved and fixed on the outer peripheral wall of the plug.
[0009] In a feasible technical solution of the present application, the plug is a cylindrical structure, and an annular groove adapted to the sealing ring is provided on the outer peripheral wall of the plug.
[0010] In a feasible technical solution of the present application, at least two horizontally arranged pins are provided through the fixing seat, and both ends of the pins extend from the side of the fixing seat. The mounting block is horizontally slidably assembled on the pins and fixed by machine screws.
[0011] In a feasible technical solution of the present application, the clamping lock includes a rotating arm, and hinged ears are provided on both sides of the bottom of the rotating arm. The two hinged ears and the fixed seat are hinged by a rotating shaft, and the lock hook is vertically connected to the top of the rotating arm.
[0012] In a feasible technical solution of the present application, the clamping lock further includes a pressing handle, the pressing handle is fixed to the bottom of the rotating arm, and the pressing handle and the fixed handle form an "eight" shape.
[0013] In a feasible technical solution of the present application, the elastic member is a spring, a first limiting column is provided on the inner side of the bottom of the rotating arm, and a second limiting column is provided on the inner side of the fixed handle, and the first limiting column and the second limiting column are respectively inserted into the two ends of the spring.
[0014] In a feasible technical solution of the present application, the fixing seat and the mounting block are both made of stainless steel, and the length of the thread on the mounting block connected to the blocking assembly is between 25-50 mm.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] By using the clamping lock, the fixing handle and the elastic member in combination, the tooling of the present application can be relatively fixed to the pressure plate / connector of the heat exchanger core. For pressure plates / connectors of different models and sizes, the position of the mounting block can be adaptively adjusted according to the position of the inlet or outlet thereon. Then, by adjusting the position of the blocking assembly, the inlet or outlet on the pressure plate / connector connected to the heat exchanger core can be aligned and sealed.
[0017] The tooling of the present application is easy to adjust and has good adaptability. It can adapt to a variety of structural shapes, center distances, and pressure plates / joints with different thicknesses, effectively reducing the number of helium inspection tooling varieties and reducing the cost of outsourcing processing. It does not require a large number of tooling racks for storage, occupies a small production site, and basically does not have the problem of mixed tooling. When changing varieties, there is no need to find the corresponding tooling separately, only the position of the sealing component needs to be adjusted. This saves time and improves production efficiency. Every time a new product is launched, there is no need to redesign a new helium inspection tooling, which saves time and effort and has a low investment cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.
[0019] Figure 1 It is a structural schematic diagram of the universal adjustable tooling for helium inspection of the single-button automobile air-conditioning heat exchanger core according to an embodiment of the present application.
[0020] Figure 2 This is a schematic diagram of the usage status of the universal adjustable tooling for helium inspection of the single-button automobile air-conditioning heat exchanger core in the embodiment of the present application.
[0021] Description of reference numerals:
[0022] 100, pressure plate / connector;
[0023] 1. Fixing seat; 11. Pin; 12. Machine screw;
[0024] 2. Clamping lock; 21. Rotating arm; 22. Lock hook; 23. Articulated ear; 24. Rotating shaft; 25. Pressing handle; 26. First limiting column;
[0025] 3. Fixed handle; 31. Second limiting column;
[0026] 4. Elastic parts;
[0027] 5. Install the block;
[0028] 6. Sealing assembly; 61. Threaded rod; 62. Plug; 63. Sealing ring. DETAILED DESCRIPTION
[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.
[0030] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.
[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 a limitation on this application.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.
[0033] The following is combined with Figure 1-2 This application is described in further detail.
[0034] The embodiment of the present application discloses a single-button automobile air-conditioning heat exchanger core helium inspection universal adjustable tooling. Figure 1 and Figure 2The single-button automobile air-conditioning heat exchanger core helium inspection universal adjustable tooling includes a fixing seat 1, a clamping lock 2, a fixing handle 3 and an elastic member 4. The middle part of the clamping lock 2 is hinged to one side of the fixing seat 1, and the fixing handle 3 is fixed to the other side of the fixing seat 1. The end of the clamping lock 2 is provided with a locking hook 22 adapted to the pressure plate / joint 100 on the heat exchanger core. The elastic member 4 is arranged between the middle part of the clamping lock 2 and the fixing handle 3. The elastic member 4 is used to drive the locking hook 22 to be fastened inward and fixed on the pressure plate / joint 100. The locking hook 22 and the elastic member 4 are respectively located on opposite sides of the fixing seat 1. The other side of the fixing seat 1 is also horizontally slidably equipped with a mounting block 5, and the mounting block 5 is vertically adjustable and equipped with a sealing assembly 6. The sealing assembly 6 is used to connect the inlet or outlet on the pressure plate / joint 100. The tooling of the present application is applicable to the case where only an inlet or an outlet is provided on a single pressure plate / connector 100 , and is not applicable to the case where both the inlet and the outlet are located on a single pressure plate / connector 100 .
[0035] In this embodiment, the sealing assembly 6 includes a threaded rod 61, a plug 62 and a sealing ring 63. The threaded rod 61 is arranged vertically and threadedly assembled and passes through the mounting block 5. The plug 62 is fixed to the top of the threaded rod 61. The sealing ring 63 is sleeved and fixed on the outer peripheral wall of the plug 62. The plug 62 is a cylindrical structure, and an annular groove for adapting to the sealing ring 63 is provided on the outer peripheral wall of the plug 62.
[0036] The fixing seat 1 and the mounting block 5 are both made of stainless steel, and the length of the thread connecting the mounting block 5 with the blocking component 6 is between 25-50 mm.
[0037] The sealing assembly 6 designed above has a simple structure and a firm connection, and has a good sealing effect on the inlet or outlet. The position of the plug 62 can be adjusted by rotating the threaded rod 61, and it has the advantage of stepless adjustment, which is sufficient to adapt to a variety of different types of pressure plates / connectors 100, and the adjustment process is also relatively convenient.
[0038] In this embodiment, at least two horizontally arranged pins 11 are provided through the fixing base 1, and both ends of the pins 11 extend from the side of the fixing base 1. The mounting block 5 is horizontally slidably assembled on the pins 11 and fixed by machine screws 12.
[0039] By loosening the machine screw 12, the position of the mounting block 5 can be adjusted along the pin shaft 11, thereby achieving the purpose of adjusting the distance between the sealing component 66 and the fixing seat 1 to adapt to a variety of different types of pressure plates / connectors 100, and the adjustment process is also relatively convenient.
[0040] In this embodiment, the clamping lock 2 includes a rotating arm 21, and hinge ears 23 are provided on both sides of the bottom of the rotating arm 21. The two hinge ears 23 and the fixed seat 1 are hinged through a rotating shaft 24, and the lock hook 22 is vertically connected to the top of the rotating arm 21.
[0041] The clamping lock buckle 2 further includes a pressing handle 25 , which is fixed to the bottom of the rotating arm 21 . The pressing handle 25 and the fixed handle 3 form an “eight” shape.
[0042] The clamping lock buckle 2 designed as above has a simple structure and is easy to operate. When connected to the pressure plate / connector 100, the operation is very convenient and the connection is firm and not easy to loosen.
[0043] In order to improve the installation firmness of the elastic part 4, the elastic part 4 is a spring, a first limiting column 26 is provided on the inner side of the bottom of the rotating arm 21, and a second limiting column 31 is provided on the inner side of the fixed handle 3. The first limiting column 26 and the second limiting column 31 are respectively inserted into the two ends of the spring.
[0044] The beneficial technical effects of the universal adjustable helium inspection tool for the single-button automobile air-conditioning heat exchanger core of the embodiment of the present application are roughly as follows:
[0045] By using the clamping lock 2, the fixing handle 3 and the elastic member 4 in combination, the tooling of the present application can be relatively fixed to the pressure plate / connector 100 of the heat exchanger core. For pressure plates / connectors 100 of different models and sizes, the position of the mounting block 5 can be adaptively adjusted according to the position of the inlet or outlet thereon. Then, by adjusting the position of the blocking assembly 6, the inlet or outlet on the pressure plate / connector 100 of the heat exchanger core can be aligned and sealed.
[0046] The tooling of the present application is easy to adjust and has good adaptability. It can adapt to a variety of pressure plates / joints 100 with different structural shapes, center distances, and thicknesses, effectively reducing the number of helium inspection tooling varieties and reducing the cost of outsourcing processing. It does not require a large number of tooling racks for storage, occupies a small production site, and basically does not have the problem of mixed tooling. When the variety is changed, there is no need to find the corresponding tooling separately, only the position of the plugging component 6 needs to be adjusted to save time and improve production efficiency. Every time a new product is launched, there is no need to redesign a new helium inspection tooling, which saves time and effort and has a low investment cost.
[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.
Claims
1. A universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core, characterized in that: The invention comprises a fixing seat (1), a clamping lock (2), a fixing handle (3) and an elastic member (4), wherein the middle portion of the clamping lock (2) is hinged to one side of the fixing seat (1), the fixing handle (3) is fixed to the other side of the fixing seat (1), the end portion of the clamping lock (2) is provided with a locking hook (22) adapted to the upper pressure plate / connector (100) of the heat exchanger core, and the elastic member (4) is provided between the middle portion of the clamping lock (2) and the fixing handle (3). The elastic member (4) is used to drive the locking hook (22) to fasten inward and fix it on the pressure plate / connector (100). The locking hook (22) and the elastic member (4) are respectively located on opposite sides of the fixing seat (1). The other side of the fixing seat (1) is also equipped with a mounting block (5) that can be adjusted horizontally and slidably. The mounting block (5) is equipped with a blocking component (6) that can be adjusted vertically. The blocking component (6) is used to connect the inlet or outlet on the pressure plate / connector (100).
2. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 1 is characterized in that: The sealing assembly (6) comprises a threaded rod (61), a plug (62) and a sealing ring (63); the threaded rod (61) is arranged vertically and threadedly assembled and passes through the mounting block (5); the plug (62) is fixed to the top of the threaded rod (61); and the sealing ring (63) is sleeved and fixed on the outer peripheral wall of the plug (62).
3. The universal adjustable tool for helium inspection of the single-button automobile air-conditioning heat exchanger core according to claim 2 is characterized in that: The plug (62) is a cylindrical structure, and an annular groove adapted to fit the sealing ring (63) is provided on the outer peripheral wall of the plug (62).
4. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 1 is characterized in that: At least two horizontally arranged pins (11) are provided through the fixing seat (1), and both ends of the pins (11) extend from the side of the fixing seat (1). The mounting block (5) is horizontally slidably assembled on the pins (11) and fixed by machine screws (12).
5. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 1 is characterized in that: The clamping lock (2) includes a rotating arm (21), and hinge ears (23) are provided on both sides of the bottom of the rotating arm (21). The two hinge ears (23) and the fixed seat (1) are hinged via a rotating shaft (24), and the locking hook (22) is vertically connected to the top of the rotating arm (21).
6. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 5 is characterized in that: The clamping lock (2) further comprises a pressing handle (25), wherein the pressing handle (25) is fixed to the bottom of the rotating arm (21), and the pressing handle (25) and the fixed handle (3) form an "eight" shape.
7. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 5 is characterized in that: The elastic member (4) is a spring, a first limiting column (26) is provided on the inner side of the bottom of the rotating arm (21), a second limiting column (31) is provided on the inner side of the fixed handle (3), and the first limiting column (26) and the second limiting column (31) are respectively inserted into the interior of the two ends of the spring.
8. The universal adjustable tool for helium inspection of a single-button automobile air-conditioning heat exchanger core according to claim 1 is characterized in that: The fixing seat (1) and the mounting block (5) are both made of stainless steel, and the length of the thread on the mounting block (5) connected to the blocking component (6) is between 25 and 50 mm.