Thermotank and test system

Abstract

The utility model discloses a thermostat and a test system, and relates to the technical field of communication module test. The thermostat provided by the utility model comprises a box body with an opening, a box door is hinged to the opening of the box body, and a communication module to be tested is placed in the box body; a mounting hole is formed in the box body and penetrates through the outer wall and the inner wall of the box body; the mounting hole is used for clamping a first sealing element, the first sealing element is provided with a through hole extending in the axial direction of the mounting hole, the through hole is used for allowing a connecting cable to penetrate through, and the to-be-tested communication module is electrically connected with testing equipment outside the box body through the connecting cable. According to the thermotank, the through hole is formed in the first sealing element, so that the first sealing element is provided with the connecting cable in a penetrating manner while well blocking and sealing the mounting hole, the to-be-tested communication module in the tank body is electrically connected with the test equipment outside the tank body, and a gap is prevented from being generated between the first sealing element and the through hole when the connecting cable penetrates through the first sealing element; the heat preservation property and the reliability of the constant-temperature box are improved, and the accuracy of the testing process is also improved.

Description

Technical Field

[0001] This utility model relates to the field of communication module testing technology, and more specifically, to a constant temperature chamber and testing system. Background Technology

[0002] When conducting reliability testing on a communication module, a constant temperature chamber is required to simulate extreme high and low temperature environments to verify the module's performance under extreme conditions. The communication module is placed inside the chamber, which has openings on the side for radio frequency (RF) cables to pass through. The RF cables are then threaded through these openings to connect the communication module under test inside the chamber to the testing instruments outside.

[0003] In actual testing, rubber stoppers are needed to seal the holes and the internal environment of the chamber. Existing rubber stoppers are solid, frustum-shaped, and elastic, allowing them to fit snugly against the edge of the hole to achieve a seal. The RF cables extend from the gap between the rubber stopper and the hole. However, when a large number of RF cables pass through the hole, the gaps between the rubber stopper and the hole edge become larger, weakening the seal. In low-temperature environments, water vapor entering the chamber through these gaps can freeze, causing frost buildup inside the chamber and affecting the testing results of the communication module under test. Utility Model Content

[0004] The purpose of this utility model is to provide a constant temperature chamber, which, by setting a through hole on the first sealing member, allows the connecting cable to enter the interior of the constant temperature chamber through the through hole, thereby avoiding gaps between the first sealing member and the through hole when the connecting cable is inserted, and improving the reliability of the constant temperature chamber and the accuracy of the testing process.

[0005] The embodiments of this utility model are implemented as follows:

[0006] In one aspect, this utility model provides a constant temperature chamber, including a chamber body with an opening, a door hinged to the opening of the chamber body, and a chamber body for placing a communication module under test; the chamber body has a mounting hole that penetrates the outer wall and inner wall of the chamber body; the mounting hole is used to engage a first sealing element, the first sealing element having a through hole extending axially along the mounting hole, the through hole being used to pass through a connecting cable, and the communication module under test being electrically connected to a test device outside the chamber body via the connecting cable.

[0007] Optionally, at least one end of the through hole is provided with a second seal, which is engaged with the inner wall of the through hole.

[0008] Optionally, the second seal includes a plug cap and a plug post, with the plug cap disposed at the end of the plug post; the outer diameter of the plug post is the same as the inner diameter of the through hole, and the diameter of the plug cap is larger than the inner diameter of the through hole; the plug post is used to be engaged with the inner wall of the through hole so that the side of the plug cap facing the first seal abuts against the first seal.

[0009] Optionally, a rubber cord is provided on the side of the plug away from the plunger.

[0010] Optionally, a limiting ring is provided at the end of the rubber rope away from the plug cap, and a hook is protruding from the outer wall of the first seal, with the limiting ring used to engage with the hook.

[0011] Optionally, a limit hook is provided at the end of the rubber rope away from the plug cap, and a ring protrudes from the outer wall of the first seal, with the limit hook used to engage with the ring.

[0012] Optionally, the outer diameter of the first seal gradually decreases along a first direction, which is the direction in which the first seal passes through the mounting hole.

[0013] Optionally, both the first and second seals are made of rubber.

[0014] Optionally, the mounting hole has at least one and is located on either side of the temperature control chamber.

[0015] Another aspect of this utility model provides a testing system, including a constant temperature chamber and testing equipment. The constant temperature chamber is used to place a communication module under test, and the communication module under test is electrically connected to the testing equipment through a connecting cable.

[0016] The beneficial effects of this utility model include at least one of the following:

[0017] This application provides a constant temperature chamber, including a chamber body with an opening, a door hinged to the opening, and a chamber interior for housing a communication module under test (DUT). The chamber body has a mounting hole penetrating both the outer and inner walls. The mounting hole is used to engage a first sealing element, which has a through hole extending axially along the mounting hole for a connecting cable to pass through. The DUT is electrically connected to a test device outside the chamber via the connecting cable. By providing a through hole in the first sealing element, the constant temperature chamber allows the first sealing element to effectively seal the mounting hole while simultaneously allowing the connecting cable to pass through, thus achieving electrical connection between the DUT inside the chamber and the test device outside. This avoids gaps between the first sealing element and the through hole during cable insertion, improving the chamber's insulation and reliability, and consequently enhancing the accuracy of the testing process.

[0018] This application also provides a testing system, including a temperature-controlled chamber and testing equipment. The temperature-controlled chamber is used to place the communication module under test (DUT), and the DUT is electrically connected to the testing equipment via a connecting cable. The temperature-controlled chamber of the above-mentioned testing system has good thermal insulation and reliability, which improves the accuracy of the testing system's performance test results for the DUT under extreme environments. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 One of the cross-sectional views of the first sealing member provided in an embodiment of this utility model;

[0021] Figure 2 A second cross-sectional view of the first sealing element provided in an embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the structure of the first sealing element provided in an embodiment of this utility model;

[0023] Figure 4 A top view of the first sealing element provided in an embodiment of this utility model.

[0024] Icons: 100-First seal; 101-Ring body; 110-Through hole; 120-Second seal; 121-Plug cap; 122-Plug; 123-Rubber rope; 124-Limit hook. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please refer to Figure 1 In one aspect of this application, a constant temperature chamber is provided, including a chamber body with an opening, a door hinged to the opening of the chamber body, and a communication module under test placed inside the chamber body; the chamber body has an installation hole that penetrates the outer wall and inner wall of the chamber body; the installation hole is used to engage a first sealing member 100, the first sealing member 100 has a through hole 110 extending axially along the installation hole, the through hole 110 is used to pass through a connecting cable, and the communication module under test is electrically connected to a test device outside the chamber body through the connecting cable.

[0032] Specifically, this application provides a temperature-controlled chamber, which includes a chamber body and a door. The chamber body and door form a sealed enclosure, within which a communication module under test (DUT) can be placed. This temperature-controlled chamber can simulate extreme high and low temperature environments within the enclosure to verify or test the performance of the DUT under extreme temperatures. When testing the DUT, it needs to be connected to the test equipment via a connecting cable, which can be an radio frequency (RF) cable.

[0033] To facilitate the connection between the communication module under test (DUT) and the test equipment, mounting holes need to be made in the enclosure. These mounting holes penetrate both the outer and inner walls of the enclosure, allowing communication between the interior and the outside. To avoid affecting the enclosure's sealing performance, therefore... Figure 1 As shown, the constant temperature chamber also includes a first sealing element 100, which is used to be engaged in the mounting hole to ensure the airtightness of the chamber.

[0034] To ensure that the connection cable can connect the communication module under test inside the enclosure to the test equipment outside the enclosure, such as... Figure 1 As shown, the first seal 100 has a through hole 110 extending axially along the mounting hole. One end of the connecting cable is used to connect to the communication module under test, and the other end is used to pass through the mounting hole through the through hole 110 and connect to the test equipment outside the enclosure. This allows the connecting cable to pass through while effectively sealing the mounting hole, so as to realize the electrical connection between the communication module under test inside the enclosure and the test equipment outside the enclosure.

[0035] It should be noted that, firstly, in one possible embodiment of this application, in order to improve the sealing performance inside the chamber, the first sealing element 100 is a rubber element. Rubber elements have good elasticity, wear resistance, and temperature resistance, and perform excellently in gas sealing. This arrangement not only ensures the maintenance of the temperature inside the chamber, but also facilitates the placement of the first sealing element 100 within the mounting hole. Its good elasticity can minimize the gap between the first sealing element 100 and the inner wall of the mounting hole, further improving the chamber's sealing performance.

[0036] Second, such as Figure 3 As shown, the outer diameter of the first seal 100 gradually decreases along a first direction, which is the direction in which the first seal 100 passes through the mounting hole. By setting the outer diameter of the first seal 100 to gradually decrease, it is easier for the first seal 100 to pass through the mounting hole from the end with the smaller outer diameter and to be engaged in the mounting hole from the end with the larger outer diameter, thereby improving the assembly efficiency and convenience of the first seal 100.

[0037] Third, this application does not impose any limitation on the specific number of mounting holes, and there is at least one mounting hole; when there are multiple mounting holes, the multiple mounting holes are respectively provided on any side of the constant temperature chamber.

[0038] This application provides a constant temperature chamber, including a chamber body with an opening, a door hinged to the opening, and a chamber interior for housing a communication module under test. The chamber body has a mounting hole penetrating both the outer and inner walls of the chamber. The mounting hole is used to engage a first sealing element 100. The first sealing element 100 has a through hole 110 extending axially along the mounting hole, through which a connecting cable passes. The communication module under test is electrically connected to a test device outside the chamber via the connecting cable. By providing the through hole 110 in the first sealing element 100, the constant temperature chamber allows the first sealing element 100 to effectively seal the mounting hole while simultaneously allowing the connecting cable to pass through, thus achieving electrical connection between the communication module under test inside the chamber and the test device outside the chamber. This avoids gaps between the first sealing element 100 and the through hole 110 when the connecting cable passes through, improving the insulation and reliability of the constant temperature chamber, and consequently improving the accuracy of the testing process.

[0039] In one possible implementation of this application, such as Figure 2 As shown, at least one end of the through hole 110 is provided with a second seal 120, which is engaged with the inner wall of the through hole 110.

[0040] Specifically, when no connecting cable is required, in order to improve the sealing of the chamber, at least one end of the through hole 110 is also provided with a second sealing element 120. The second sealing element 120 can block the through hole 110, further improving the heat preservation of the constant temperature chamber.

[0041] Preferably, such as Figure 2 As shown, a second sealing element 120 is provided at both ends of the through hole 110 to block the opposite ends of the through hole 110, thereby maximizing the insulation performance of the constant temperature chamber and preventing external moisture from entering the chamber through the through hole 110.

[0042] It should be noted that, in one possible embodiment of this application, the second sealing element 120 is a rubber component; rubber components have good elasticity, wear resistance, and temperature resistance, and perform excellently in gas sealing. This arrangement not only ensures the maintenance of the temperature inside the chamber, but also facilitates the placement of the second sealing element 120 within the through hole 110. Its good elasticity can minimize the gap between the second sealing element 120 and the inner wall of the through hole 110, further improving the sealing performance of the first sealing element 100 and the chamber body of the constant temperature chamber.

[0043] Optionally, such as Figure 2As shown, the second seal 120 includes a plug cap 121 and a plug 122. The plug cap 121 is disposed at the end of the plug 122. The outer diameter of the plug 122 is the same as the inner diameter of the through hole 110, and the diameter of the plug cap 121 is larger than the inner diameter of the through hole 110. The plug 122 is used to be engaged with the inner wall of the through hole 110 so that the side of the plug cap 121 facing the first seal 100 abuts against the first seal 100.

[0044] Specifically, such as Figure 2 As shown, the second sealing element 120 includes a plug cap 121 and a plug 122. The second sealing element 120 is used to be engaged inside the through hole 110 by the plug 122 to block the through hole 110. The diameter of the plug cap 121 is larger than the inner diameter of the through hole 110 to ensure that the side of the plug cap 121 facing the first sealing element 100 abuts against the first sealing element 100, thereby completely covering the periphery of the through hole 110 and further improving the sealing performance of the first sealing element 100 and the constant temperature chamber.

[0045] For example, to facilitate the picking up and disassembly of the second seal 120, a rubber rope 123 is provided on the side of the plug cap 121 away from the plug post 122. The operator can take out the second seal 120 from the through hole 110 of the first seal 100 through the rubber rope 123, which improves the efficiency and convenience of disassembly and assembly of the second seal 120.

[0046] In one possible embodiment of this application, a limiting ring is provided at the end of the rubber rope 123 away from the plug cap 121, and a hook body is protruding from the outer wall of the first sealing member 100. The limiting ring is used to hook the hook body (not shown in the figure).

[0047] Specifically, when a connecting cable needs to be threaded through the first seal 100, the second seal 120 needs to be removed from the first seal 100. In order to prevent the second seal 120 from being lost after it is separated from the first seal 100, a limiting ring is provided at the end of the rubber rope 123 away from the plug cap 121. Correspondingly, a hook is protruding from the outer wall of the first seal 100, and the limiting ring is used to hook with the hook to prevent the second seal 120 from being lost after it is separated from the first seal 100.

[0048] In addition to the above-described configuration, another possible implementation of this application is as follows: Figure 3 and Figure 4 As shown, a limit hook 124 is provided at the end of the rubber rope 123 away from the plug cap 121, and a ring body 101 protrudes from the outer wall of the first sealing member 100. The limit hook 124 is used to hook onto the ring body 101.

[0049] Specifically, in addition to providing a limiting ring at the end of the rubber rope 123 away from the plug cap 121 and providing a hook protruding from the outer wall of the first seal 100, such as Figure 3 and Figure 4 As shown, a limiting hook 124 can also be provided at the end of the rubber rope 123 away from the plug cap 121. Correspondingly, a ring body 101 is protruding from the outer wall of the first seal 100. The limiting hook 124 is used to hook with the ring body 101 to prevent the second seal 120 from being lost after it is separated from the first seal 100.

[0050] Another aspect of this application embodiment also provides a testing system, including a constant temperature chamber and testing equipment. The constant temperature chamber is used to place a communication module under test, and the communication module under test is electrically connected to the testing equipment through a connecting cable.

[0051] Specifically, this application also provides a testing system, which includes a temperature-controlled chamber and testing equipment arranged at intervals. The temperature-controlled chamber is used to place the communication module under test. The temperature-controlled chamber can simulate extreme high and low temperature environments within the chamber to verify or test the performance of the communication module under test under extreme temperatures. The communication module under test is electrically connected to the testing equipment through a connecting cable passing through the mounting holes on the chamber body.

[0052] Because a first sealing element 100 is installed inside the mounting hole of the constant temperature chamber, and a through hole 110 is provided on the first sealing element 100, the first sealing element 100 can effectively seal the mounting hole while simultaneously allowing a connecting cable to pass through, thereby realizing the electrical connection between the communication module under test inside the chamber and the test equipment outside the chamber. This improves the insulation and reliability of the constant temperature chamber. The specific structure and beneficial effects of the constant temperature chamber have been described in detail above and will not be repeated here.

[0053] The constant temperature chamber of the above-mentioned test system has good thermal insulation and reliability, which improves the accuracy of the test system's performance test results for the communication module under test in extreme environments.

[0054] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0055] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A constant temperature chamber, characterized in that, It includes a box with an opening, a door hinged to the opening of the box, and a box for placing a communication module under test inside the box; The housing has mounting holes that penetrate the outer and inner walls of the housing. The mounting hole is used to hold the first sealing element (100). The first sealing element (100) has a through hole (110) extending axially along the mounting hole. The through hole (110) is used to pass through a connecting cable. The communication module under test is electrically connected to the test equipment outside the housing through the connecting cable.

2. The constant temperature chamber according to claim 1, characterized in that, At least one end of the through hole (110) is provided with a second sealing element (120), which is engaged with the inner wall of the through hole (110).

3. The constant temperature chamber according to claim 2, characterized in that, The second sealing element (120) includes a plug cap (121) and a plug plunger (122). The plug cap (121) is disposed at the end of the plug plunger (122). The outer diameter of the plug plunger (122) is the same as the inner diameter of the through hole (110), and the diameter of the plug cap (121) is larger than the inner diameter of the through hole (110). The plug plunger (122) is used to be engaged with the inner wall of the through hole (110) so that the side of the plug cap (121) facing the first sealing element (100) abuts against the first sealing element (100).

4. The constant temperature chamber according to claim 3, characterized in that, A rubber cord (123) is provided on the side of the plug (121) away from the plug (122).

5. The constant temperature chamber according to claim 4, characterized in that, A limiting ring is provided at one end of the rubber rope (123) away from the plug cap (121), and a hook is protruding from the outer wall of the first sealing member (100), and the limiting ring is used to hook the hook.

6. The constant temperature chamber according to claim 4, characterized in that, A limiting hook (124) is provided at one end of the rubber rope (123) away from the plug cap (121), and a ring body (101) protrudes from the outer wall of the first sealing member (100), and the limiting hook (124) is used to hook with the ring body (101).

7. The constant temperature chamber according to claim 1, characterized in that, The outer diameter of the first seal (100) gradually decreases along a first direction, which is the direction in which the first seal (100) passes through the mounting hole.

8. The constant temperature chamber according to claim 2, characterized in that, Both the first seal (100) and the second seal (120) are rubber parts.

9. The constant temperature chamber according to claim 1, characterized in that, The number of mounting holes is at least one, and the mounting holes are located on any side of the constant temperature chamber.

10. A testing system, characterized in that, The invention includes a constant temperature chamber and a testing device as described in any one of claims 1-9, wherein the constant temperature chamber is used to place a communication module under test, and the communication module under test is electrically connected to the testing device via a connecting cable.

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