incubator

Abstract

The utility model belongs to the test equipment technical field discloses a constant temperature box, including box, cooling mechanism and drive mechanism. The box is equipped with constant temperature cavity, and the lateral wall of box is equipped with the air inlet that links constant temperature cavity and outside. Cooling mechanism includes casing and fan, and the cavity is equipped in casing, and the air inlet and air outlet that link the cavity are equipped on casing, and the fan sets up in the cavity and is located at the air outlet, and the casing is slidably connected in the lateral wall of box that is equipped with air inlet, and the casing has cooling work position and plugging work position, and when the casing is located in cooling work position, the air outlet links the air inlet, and when the casing is located in plugging work position, the lateral wall of casing blocks the air inlet. Drive mechanism sets up on the box and is used for driving the casing to switch between cooling work position and plugging work position. Set up movable cooling mechanism, can guarantee the stability of temperature in constant temperature box, and can carry out the cooling of electronic component in constant temperature box when needing cooling.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a constant temperature chamber. Background Technology

[0002] Thermostatic chambers are important testing equipment in the research and development and quality control of electronic components. By simulating high temperature, low temperature and temperature cycling conditions, thermostatic chambers test the reliability and durability of electronic components in extreme temperature environments.

[0003] Traditional constant temperature chambers typically cool the test components naturally after high-temperature testing, which is time-consuming and affects testing efficiency. Some chambers are equipped with cold air outlets and cold air fans at these outlets to cool the interior of the chamber. However, the temperature drops rapidly at the cold air outlets, affecting the stability of the temperature inside the chamber.

[0004] Therefore, there is an urgent need to develop a constant temperature chamber to solve the above-mentioned technical problems. Utility Model Content

[0005] This utility model provides a constant temperature chamber equipped with a movable cooling mechanism to open or close the air inlet on the chamber body. This not only ensures the stability of the temperature inside the constant temperature chamber, but also cools down the electronic components inside the constant temperature chamber when cooling is required, thereby improving the efficiency of the test. Furthermore, the movement of the cooling mechanism can be automatically controlled, saving manpower.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Incubator, including:

[0008] The enclosure contains a constant temperature chamber, and the side wall of the enclosure has an air inlet that connects the constant temperature chamber to the outside.

[0009] A cooling mechanism includes a housing and a fan. The housing has a cavity, and the housing has an air inlet and an air outlet communicating with the cavity. The fan is disposed in the cavity and located at the air outlet. The housing is slidably connected to the side wall of the housing where the air inlet is located. The housing has a cooling working position and a blocking working position. When the housing is in the cooling working position, the air outlet communicates with the air inlet. When the housing is in the blocking working position, the side wall of the housing blocks the air inlet.

[0010] A drive mechanism, disposed on the housing, is used to drive the housing to switch between the cooling working position and the sealing working position.

[0011] Optionally, a filter assembly is provided inside the housing between the air inlet and the air outlet.

[0012] Optionally, the housing has a mounting opening on a panel away from the box body, and a mounting plate is detachably mounted at the mounting opening to block the mounting opening; the filter assembly includes a mounting frame and a filter screen, the mounting frame is connected to the mounting plate, and the filter screen is mounted on the mounting frame.

[0013] Optionally, the housing has a support structure on each of the two inner walls opposite to the mounting port. The support structure includes two support bars, and a slot is formed between the two support bars. The opposite two sides of the mounting bracket are inserted into the corresponding slots. And / or, the air inlet is located at the bottom of the housing, and the three sides of the mounting bracket that are not connected to the mounting plate are respectively attached to the three adjacent side walls of the housing.

[0014] Optionally, both side walls of the mounting plate protrude from the mounting opening along its length, and each side wall protruding from the mounting opening has an integrally formed connecting ear at both ends. The connecting ear is connected to the side wall of the housing near the mounting opening by fasteners.

[0015] Optionally, quick-release components are provided at the connection points between the mounting plate and the housing on opposite sides in the height direction, and the quick-release components include:

[0016] A locking frame is disposed on the housing, and the locking frame and the housing form a locking space;

[0017] A locking assembly includes a lock body, lock plates, and an elastic element. The lock body is disposed on the side of the mounting plate near the lock frame. The lock plates are slidably connected to the lock body in a vertical direction. The ends of the two lock plates that are far apart from each other can slide into corresponding locking spaces to fix the mounting plate. The ends of the two lock plates that are close to each other are provided with handles. The elastic element is disposed on the lock body and connected to the lock plates. The elastic element is configured to always have a tendency to push the lock plates into the lock frame.

[0018] Optionally, the lock body is provided with an installation space, and a slide rod is provided in the installation space. The slide rod extends vertically, and a slider is provided on the lock plate. The slide rod slides through the slider, and an elastic element is sleeved on the slide rod. One end of the elastic element abuts against the bottom of the lock body, and the other end abuts against the slider.

[0019] Optionally, on the side wall of the housing where the air inlet is located, guide rails are provided on both sides of the air inlet, and sliding grooves are provided on the opposite sides of the two guide rails. Raised ribs are provided on the opposite two outer side walls of the housing, and the raised ribs are arranged in a one-to-one correspondence with the sliding grooves. The raised ribs are slidably connected to the corresponding sliding grooves.

[0020] Optionally, the drive mechanism includes:

[0021] A fixing plate, the side wall of which is connected to the side wall of the housing;

[0022] A rotation drive component is mounted on the fixed plate;

[0023] A lead screw, the output end of which is connected to the lead screw, is used to drive the lead screw to rotate;

[0024] A connecting plate having threaded holes, the connecting plate being connected to the lead screw through the threaded holes;

[0025] A guide rod is fixedly installed through the connecting plate. The end of the guide rod away from the fixed plate is connected to the bottom of the housing, and the end of the guide rod near the fixed plate is slidably installed through the fixed plate.

[0026] Optionally, the guide rod has a boss at one end away from the connecting plate, and the boss can abut against the surface of the fixing plate opposite to the connecting plate.

[0027] The beneficial effects of this utility model are:

[0028] This invention provides a constant temperature chamber, including a chamber body, a cooling mechanism, and a driving mechanism. When the chamber is being tested, it is necessary to ensure the stability of the temperature within the constant temperature chamber. At this time, the driving mechanism is controlled to move the housing of the cooling mechanism to the sealing position, blocking the air inlet on the chamber body to prevent heat loss from the constant temperature chamber. When the test is completed, the driving mechanism is controlled to move the housing to the cooling position, connecting the air outlet on the housing with the air inlet, and the fan is activated. Outside air, under the action of the fan, sequentially enters the constant temperature chamber through the air inlet, the cavity inside the housing, the air outlet, and the air inlet again, cooling the electronic components within the chamber. Compared with natural cooling, this method provides faster cooling and improves testing efficiency.

[0029] By setting up a cooling mechanism with both a cooling working position and a sealing working position, the temperature stability of the constant temperature chamber during testing can be ensured, and the electronic components inside the constant temperature chamber can be cooled when cooling is required, thereby improving the reliability of the constant temperature chamber.

[0030] By controlling the switching of the cooling mechanism's working state through a drive mechanism, the constant temperature chamber testing and cooling are automated, saving labor costs. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the constant temperature box provided in Embodiment 1 of this utility model;

[0033] Figure 2 This is a schematic diagram of the constant temperature chamber provided in Embodiment 1 of this utility model after the cooling mechanism has been removed;

[0034] Figure 3 This is a sectional view of the assembly drawing of the housing and the fan provided in Embodiment 1 of this utility model;

[0035] Figure 4 This is an exploded view of the cooling mechanism provided in Embodiment 1 of this utility model;

[0036] Figure 5 This is an assembly drawing of the cooling mechanism and the drive mechanism provided in Embodiment 1 of this utility model;

[0037] Figure 6 This is an exploded view of the driving mechanism provided in Embodiment 1 of this utility model;

[0038] Figure 7 This is a schematic diagram of the cooling mechanism provided in Embodiment 2 of this utility model;

[0039] Figure 8 This is an exploded view of the quick-assembly and disassembly component provided in Embodiment 2 of this utility model.

[0040] In the picture:

[0041] 100. Enclosure; 110. Temperature-controlled chamber; 111. Partition; 120. Air inlet; 130. Door; 131. Observation window; 140. Guide rail; 141. Slide groove; 150. Rib;

[0042] 200. Cooling mechanism; 210. Housing; 211. Cavity; 212. Air inlet; 213. Air outlet; 214. Mounting port; 215. Mounting plate; 2151. Connecting lug; 2152. Fastener; 216. Support structure; 2161. Support bar; 2162. Slot; 220. Fan; 230. Filter assembly; 231. Mounting bracket; 232. Filter screen; 240. Quick-release assembly; 241. Locking bracket; 242. Locking assembly; 2421. Lock body; 24211. Mounting space; 24212. Slide bar; 2422. Locking plate; 24221. Handhold; 24222. Slider; 2423. Elastic element;

[0043] 300, drive mechanism; 310, fixed plate; 311, through hole; 320, rotation drive component; 330, lead screw; 340, connecting plate; 341, threaded hole; 350, guide rod; 351, boss. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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" and "second" are only used for distinction in description and have no special meaning.

[0048] Example 1

[0049] This embodiment provides a constant temperature chamber equipped with a movable cooling mechanism to open or close the air inlet on the chamber body. This not only ensures the stability of the temperature inside the constant temperature chamber, but also cools down the electronic components inside the chamber when cooling is required, thus improving the efficiency of the test. Furthermore, the movement of the cooling mechanism can be automatically controlled, saving manpower.

[0050] It is worth noting that a constant temperature chamber is an experimental device used to simulate a specific temperature environment. Its main function is to provide stable constant temperature conditions for samples or products by precisely controlling the temperature inside the chamber, so as to test their performance, durability, or reaction characteristics at different temperatures. The working principle of the constant temperature chamber is based on a temperature control system, which is existing technology and is not within the scope of protection of this application. Therefore, the structure of its temperature control system will not be described in detail.

[0051] like Figures 1-3 As shown, the constant temperature chamber includes a chamber body 100, a cooling mechanism 200, and a drive mechanism 300. The chamber body 100 contains a constant temperature cavity 110, and an air inlet 120 communicating with the outside environment is located on the side wall of the chamber body 100. The cooling mechanism 200 includes a housing 210 and a fan 220. The housing 210 contains a cavity 211, and has an air inlet 212 and an air outlet 213 communicating with the cavity 211. The fan 220 is located within the cavity 211 and at the air outlet 213. The housing 210 is slidably connected to the side wall of the chamber body 100 where the air inlet 120 is located. The housing 210 has a cooling working position and a blocking working position. When the housing 210 is in the cooling working position, the air outlet 213 communicates with the air inlet 120. When the housing 210 is in the blocking working position, the side wall of the housing 210 blocks the air inlet 120. The drive mechanism 300 is mounted on the housing 100 and is used to drive the housing 210 to switch between the cooling working position and the sealing working position.

[0052] The working principle of this constant temperature chamber is as follows:

[0053] When testing electronic components, the control drive mechanism 300 drives the housing 210 to the blocking working position, so that the housing 210 blocks the air inlet 120. Then, the constant temperature chamber is controlled to work, providing a constant specific temperature for the constant temperature chamber 110. Since the air inlet 120 is blocked, the risk of temperature loss from the air inlet 120 in the constant temperature chamber 110 is effectively reduced, and the reliability of the test is improved.

[0054] After the test is completed, the control drive mechanism 300 drives the housing 210 to the cooling working position, so that the air inlet 120 is connected to the air outlet 213. Then the fan 220 is started, and the outside air enters the constant temperature chamber 110 in sequence through the air inlet 212, the cavity 211 inside the housing 210, the air outlet 213, and the air inlet 120 under the action of the fan 220, so as to cool down the electronic components in the constant temperature chamber 110. Compared with the natural cooling method, the cooling speed is faster and the test efficiency is improved.

[0055] The switching of the working state of the cooling mechanism 200 is controlled by the drive mechanism 300, which realizes the automation of constant temperature chamber testing and cooling, saving labor costs.

[0056] Optionally, in this embodiment, multiple air inlets 212 are provided, and the multiple air inlets 212 are arranged at intervals.

[0057] Optionally, see [link to relevant documentation] Figure 1 and Figure 2 The constant temperature chamber 110 is equipped with multiple perforated partitions 111. The partitions 111 are used to place the electronic components to be tested, and the multiple partitions 111 can be spaced apart along the height direction. Setting the partitions 111 as perforated can reduce the influence of the partitions 111 on the temperature of the electronic components.

[0058] Furthermore, in one possible embodiment, the partition 111 is provided with a plurality of through holes 311 to form a hollow structure.

[0059] Optionally, see [link to relevant documentation] Figure 1 A door 130 is hinged to the enclosure 100, which is used to open or close the opening of the thermostatic chamber 110. A transparent observation window 131 is provided on the door 130. By providing the transparent observation window 131, the internal state of the thermostatic chamber 110 can be monitored without opening the door 130, reducing the number of times the door 130 is opened and closed. This helps maintain a constant temperature within the thermostatic chamber 110 and also improves the convenience and safety of operation.

[0060] Furthermore, such as Figure 4As shown, the cooling mechanism 200 also includes a filter assembly 230, which is used to filter dust and impurities in the air to prevent dust and impurities from entering the constant temperature chamber 110 and affecting its cleanliness, thus preventing electronic components from becoming dirty. Specifically, the filter assembly 230 is disposed inside the housing 210 and located between the air inlet 212 and the air outlet 213. That is, the air entering from the air inlet 212 must be filtered by the filter assembly 230 before it can be discharged from the air outlet 213, ensuring the filtration effect.

[0061] Optionally, such as Figures 3-5 As shown, the panel of the housing 210 away from the box 100 has a mounting opening 214, and a mounting plate 215 is detachably mounted at the mounting opening 214. The mounting plate 215 is used to seal the mounting opening 214. The filter assembly 230 includes a mounting bracket 231 and a filter screen 232. The mounting bracket 231 is connected to the mounting plate 215, and the filter screen 232 is mounted on the mounting bracket 231. During assembly, the filter assembly 230 is first connected to the mounting plate 215, and then the mounting plate 215 is connected to the housing 210. This arrangement allows the filter assembly 230 to be installed outside the housing 210, reducing the difficulty of installing the filter assembly 230 and solving the problem of the difficulty of installing the filter assembly 230 in the confined space inside the housing 210.

[0062] Optionally, in this embodiment, the mounting bracket 231 has a "U"-shaped structure, with one side of the "U"-shaped structure opening connected to the mounting plate 215. The structure is simple and easy to process and assemble.

[0063] Furthermore, multiple filter components 230 can be provided, and the multiple filter components 230 are spaced apart along the air flow direction to form a multi-layer filter layer. This arrangement improves the filtration effect.

[0064] Optionally, in one possible embodiment, the air inlet 212 is located at the bottom of the housing 210, and the three sides of the mounting bracket 231 not connected to the mounting plate 215 are respectively attached to the three adjacent side walls of the housing 210. This arrangement ensures that all the air entering from the air inlet 212 passes through the filter assembly 230, guaranteeing the filtration effect, and also improves the tightness of the fit between the filter assembly 230 and the housing 210, reducing vibration and noise.

[0065] Optionally, see [link to relevant documentation] Figure 3 and Figure 4The housing 210 has support structures 216 on its two inner walls near the mounting port 214. Each support structure 216 includes two support bars 2161, with slots 2162 formed between them. The opposite sides of the mounting bracket 231 are inserted into their corresponding slots 2162. By cooperating with the mounting bracket 231, the support bars 2161 can provide support for the mounting bracket 231, reducing the risk of deformation of the mounting bracket 231, thereby improving the filtration effect of the filter assembly 230 and extending its service life.

[0066] It is worth noting that for the scheme with multiple filter components 230, multiple support structures 216 are also set accordingly, that is, the filter components 230 and the support structures 216 are set one-to-one.

[0067] Further, see also Figure 4 and Figure 5 The mounting plate 215 has mounting openings 214 protruding from both sides of its length. Each side wall protruding from the mounting opening 214 has an integrally formed connecting ear 2151 at both ends. The connecting ear 2151 is connected to the side wall of the housing 100 near the mounting opening 214 via fasteners 2152. In other words, connecting ears 2151 are provided at all four corners of the mounting plate 215. This arrangement improves the connection strength between the mounting plate 215 and the housing 210. Furthermore, the mounting plate 215 and the connecting ears 2151 are an integral structure, facilitating processing and assembly.

[0068] Optionally, in one possible embodiment, the fastener 2152 is a bolt, the connecting lug 2151 has a first mounting hole, and the housing 210 has a second mounting hole corresponding to the first mounting hole. The bolt passes through the first mounting hole and is threadedly connected to the second mounting hole. This design is simple, easy to assemble, and provides high connection strength.

[0069] Further, see also Figure 1 , Figure 2 , Figure 4 and Figure 5 On the side wall of the housing 100 where the air inlet 120 is located, guide rails 140 are provided on opposite sides of the air inlet 120. Each of the two guide rails 140 has a groove 141 on its opposite side. Raised ribs 150 are provided on the opposite outer side walls of the housing 210, with each raised rib 150 corresponding to a groove 141. The raised ribs 150 are slidably connected within their corresponding grooves 141. The cooperation between the guide rails 140 and the raised ribs 150 guides the movement of the housing 210, improving the stability and smoothness of its movement between the cooling and sealing working positions. Furthermore, the structure is simple and easy to assemble.

[0070] Furthermore, such as Figure 5 and Figure 6 As shown, the drive mechanism 300 includes a fixed plate 310, a rotation drive component 320, a lead screw 330, a connecting plate 340, and a guide rod 350. The side wall of the fixed plate 310 is connected to the side wall of the housing 100. The rotation drive component 320 is mounted on the fixed plate 310. The output end of the rotation drive component 320 is connected to the lead screw 330 to drive its rotation. The connecting plate 340 has a threaded hole 341, through which it is connected to the lead screw 330. The guide rod 350 is fixedly mounted on the connecting plate 340. The end of the guide rod 350 away from the fixed plate 310 is connected to the bottom of the housing 210, while the end of the guide rod 350 near the fixed plate 310 slides through the fixed plate 310. The screw and nut structure is formed by rotating the drive component 320, the lead screw 330, and the connecting plate 340. When the drive component 320 drives the lead screw 330 to rotate, the connecting plate 340 will move along the extension direction of the lead screw 330. The connecting plate 340 is fixedly connected to the guide rod 350. Therefore, the connecting plate 340 will drive the guide rod 350 to move. The movement of the guide rod 350 will drive the housing 210 connected to it to move, thereby realizing the switching of the housing 210 between the cooling working position and the sealing working position.

[0071] The movement of the housing 210 is controlled by a lead screw and nut structure, resulting in high precision and stability in its movement. Furthermore, the guide rod 350 is slidably connected to the fixed plate 310, which guides the movement of the housing 210, improving its stability and smoothness.

[0072] Optionally, see [link to relevant documentation] Figure 5 and Figure 6 In this embodiment, two guide rods 350 are provided, which are respectively located on opposite sides of the lead screw 330. This arrangement makes the force on the housing 210 more uniform, thereby improving the stability of the housing 210's movement. Furthermore, since the guide rods 350 are connected to the housing 210, providing two guide rods 350 also helps to improve the fixing effect of the housing 210. Of course, in other embodiments, the number of guide rods 350 can also be set to other values, such as one or three, depending on actual needs. This application does not impose specific limitations.

[0073] Further, see also Figure 5 and Figure 6 In one possible embodiment, the end of the guide rod 350 away from the connecting plate 340 is provided with a boss 351, which can abut against the surface of the fixing plate 310 opposite to the connecting plate 340. By providing the boss 351, the sliding stroke of the guide rod 350 relative to the fixing plate 310 can be limited, thereby limiting the movement stroke of the housing 210.

[0074] Optionally, see [link to relevant documentation] Figure 6 In one possible embodiment, the fixing plate 310 is provided with a through hole 311, and the guide rod 350 slides through the through hole 311. In order to ensure the smooth sliding of the guide rod 350, the inner peripheral wall of the through hole 311 is as smooth as possible.

[0075] Example 2

[0076] This embodiment provides a constant temperature chamber, which has a largely the same structure as Embodiment 1, with improvements only. Therefore, only the differences between the two are described here, and the structures identical to those in Embodiment 1 will not be repeated. In this embodiment, the same or corresponding technical features as in Embodiment 1 are referred to by the same reference numerals.

[0077] like Figure 7 and Figure 8 As shown, in this embodiment, quick-release components 240 are provided at the connection points between the mounting plate 215 and the housing 210 on both sides in the height direction. The quick-release components 240 are used to enable quick disassembly and assembly of the mounting plate 215 on the housing 210.

[0078] Specifically, the quick-release assembly 240 includes a lock frame 241 and a locking assembly 242. The lock frame 241 is mounted on the housing 210, and the lock frame 241 and the housing 210 form a locking space. The locking assembly 242 includes a lock body 2421, a lock plate 2422, and an elastic element 2423. The lock body 2421 is located on the side of the mounting plate 215 near the lock frame 241. The lock plate 2422 is slidably connected to the lock body 2421 in a vertical direction. The ends of the two lock plates 2422 that are far apart can slide into corresponding locking spaces to fix the mounting plate 215. The ends of the two lock plates 2422 that are close together have a handle 24221. The elastic element 2423 is mounted on the lock body 2421 and connected to the lock plate 2422. The elastic element 2423 is configured to always have a tendency to push the lock plate 2422 into the lock frame 241.

[0079] The installation process for mounting plate 215 is as follows:

[0080] First, you can use your thumb and the other four fingers to touch the handles 24221 of the two lock bodies 2421 respectively, and then squeeze them to bring the two lock plates 2422 closer together.

[0081] Then, while holding the lock plate 2422, move the mounting plate 215 to the mounting opening 214 of the housing 210 so that the two lock plates 2422 correspond to the two lock frames 241 respectively;

[0082] Finally, the hand gradually releases itself, but does not leave the hand-held part 24221, so that the locking plate 2422 moves to its corresponding locking space under the action of the elastic member 2423, and then the hand can be released from the locking plate 2422.

[0083] The disassembly process of mounting plate 215 is as follows:

[0084] First, you can use your thumb and the other four fingers to touch the handles 24221 of the two lock bodies 2421 respectively, then squeeze them tightly to bring the two lock plates 2422 closer together, and finally make the two lock plates 2422 detach from the lock frame 241.

[0085] Then, while holding the handle 24221, remove the mounting plate 215.

[0086] The quick-release assembly 240 has a simple structure and enables the quick removal of the mounting plate 215.

[0087] Optionally, see [link to relevant documentation] Figure 8 The lock body 2421 has an installation space 24211, within which a slide rod 24212 extends vertically. The lock plate 2422 has a slider 24222, through which the slide rod 24212 slides. An elastic element 2423 is fitted onto the slide rod 24212, with one end abutting the bottom of the lock body 2421 and the other end abutting the slider 24222. The sliding connection between the lock plate 2422 and the lock body 2421 is achieved through the cooperation of the slider 24222 and the slide rod 24212. The structure is simple, and the sliding of the lock plate 2422 is relatively smooth. By fitting the elastic element 2423 onto the slide rod 24212, the slide rod 24212 serves both as a sliding connection with the slider 24222 and as a mounting element 2423, thus achieving a "dual function" for the slide rod 24212 and reducing the number of parts used.

[0088] Optionally, multiple slide bars 24212 can be provided to improve the stability of the sliding of the locking plate 2422.

[0089] In this embodiment, there are two slide bars 24212. In other possible embodiments, the number of slide bars 24212 may also be one, three, etc., depending on actual needs, and this application does not make a specific limitation.

[0090] Optionally, see [link to relevant documentation] Figure 8 In one possible embodiment, the lock body 2421 includes an assembly plate and a surrounding plate surrounding the assembly plate. The surrounding plate and the assembly plate form an installation space 24211. The two ends of the slide rod 24212 are respectively connected to two surrounding plates that are opposite each other in the vertical direction. The assembly plate is fixed on the mounting plate 215.

[0091] Optionally, see [link to relevant documentation] Figure 8 In one possible embodiment, the lock frame 241 has a "U" shaped structure.

[0092] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A constant temperature chamber, characterized in that, include: The box (100) has a constant temperature chamber (110) inside and an air inlet (120) on the side wall of the box (100) that connects the constant temperature chamber (110) to the outside. A cooling mechanism (200) includes a housing (210) and a fan (220). The housing (210) has a cavity (211) inside. The housing (210) has an air inlet (212) and an air outlet (213) communicating with the cavity (211). The fan (220) is disposed in the cavity (211) and located at the air outlet (213). The housing (210) is slidably connected to the side wall of the housing (100) where the air inlet (120) is located. The housing (210) has a cooling working position and a blocking working position. When the housing (210) is in the cooling working position, the air outlet (213) communicates with the air inlet (120). When the housing (210) is in the blocking working position, the side wall of the housing (210) blocks the air inlet (120). A drive mechanism (300) is disposed on the housing (100) for driving the housing (210) to switch between the cooling working position and the sealing working position.

2. The constant temperature chamber according to claim 1, characterized in that, A filter assembly (230) is provided inside the housing (210) between the air inlet (212) and the air outlet (213).

3. The constant temperature chamber according to claim 2, characterized in that, The housing (210) has a mounting opening (214) on the panel away from the box (100). A mounting plate (215) is detachably mounted at the mounting opening (214) and the mounting plate (215) is used to block the mounting opening (214). The filter assembly (230) includes a mounting bracket (231) and a filter screen (232). The mounting bracket (231) is connected to the mounting plate (215), and the filter screen (232) is mounted on the mounting bracket (231).

4. The constant temperature chamber according to claim 3, characterized in that, The housing (210) has a support structure (216) on each of its two inner walls near the mounting port (214). The support structure (216) includes two support bars (2161) and a slot (2162) is formed between the two support bars (2161). The two sides of the mounting bracket (231) are inserted into the corresponding slots (2162). And / or, the air inlet (212) is located at the bottom of the housing (210), and the three sides of the mounting bracket (231) not connected to the mounting plate (215) are respectively attached to the three adjacent side walls of the housing (210).

5. The constant temperature chamber according to claim 3, characterized in that, Both sides of the mounting plate (215) along its length protrude from the mounting opening (214), and each side wall protruding from the mounting opening (214) is provided with an integrally formed connecting ear (2151) at both ends. The connecting ear (2151) is connected to the side wall of the housing (100) near the mounting opening (214) by fasteners (2152).

6. The constant temperature chamber according to claim 3, characterized in that, Quick-release assemblies (240) are provided at the connection points between the mounting plate (215) and the housing (210) on opposite sides in the height direction. The quick-release assemblies (240) include: A locking frame (241) is disposed on the housing (210), and the locking frame (241) and the housing (210) form a locking space; The locking assembly (242) includes a lock body (2421), a lock plate (2422), and an elastic element (2423). The lock body (2421) is disposed on the side of the mounting plate (215) near the lock frame (241). The lock plate (2422) is slidably connected to the lock body (2421) in the vertical direction. The ends of the two lock plates (2422) that are far apart from each other can slide into the corresponding locking space to fix the mounting plate (215). The ends of the two lock plates (2422) that are close to each other are provided with a handle (24221). The elastic element (2423) is disposed on the lock body (2421) and connected to the lock plate (2422). The elastic element (2423) is configured to always have a tendency to push the lock plate (2422) into the lock frame (241).

7. The constant temperature chamber according to claim 6, characterized in that, The lock body (2421) is provided with an installation space (24211), and a slide rod (24212) is provided in the installation space (24211). The slide rod (24212) extends vertically. The lock plate (2422) is provided with a slider (24222). The slide rod (24212) slides through the slider (24222). The elastic element (2423) is sleeved on the slide rod (24212). One end of the elastic element (2423) abuts against the bottom of the lock body (2421), and the other end abuts against the slider (24222).

8. The constant temperature chamber according to claim 1, characterized in that, On the side wall of the housing (100) where the air inlet (120) is located, guide rails (140) are provided on both sides of the air inlet (120). The two guide rails (140) are provided with sliding grooves (141) on their opposite sides. The outer side walls of the housing (210) are provided with ribs (150). The ribs (150) are provided with corresponding sliding grooves (141) and the ribs (150) are slidably connected to the corresponding sliding grooves (141).

9. The constant temperature chamber according to any one of claims 1-8, characterized in that, The drive mechanism (300) includes: A fixing plate (310) is provided, the side wall of which is connected to the side wall of the housing (100); A rotation drive (320) is mounted on the fixed plate (310); A lead screw (330) is connected to the output end of the rotation drive (320) for driving the lead screw (330) to rotate; A connecting plate (340) is provided with a threaded hole (341), and the connecting plate (340) is connected to the lead screw (330) through the threaded hole (341); A guide rod (350) is fixedly inserted through the connecting plate (340). One end of the guide rod (350) away from the fixed plate (310) is connected to the bottom of the housing (210). The other end of the guide rod (350) near the fixed plate (310) is slidably inserted through the fixed plate (310).

10. The constant temperature chamber according to claim 9, characterized in that, The guide rod (350) has a boss (351) at one end away from the connecting plate (340), and the boss (351) can abut against the surface of the fixing plate (310) away from the connecting plate (340).

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