Transverse three-box type temperature shock test box

Abstract

The utility model discloses a transverse three-box type temperature shock test box, which is characterized in that a low-temperature chamber, a test chamber and a high-temperature chamber are arranged in a box body, and the low-temperature chamber, the test chamber and the high-temperature chamber are positioned on the same horizontal line, so that the structure of the box body is more compact, and the space occupation of the temperature shock test box in the height direction is reduced; the low-temperature chamber, the test chamber and the high-temperature chamber are arranged in a tiled manner, so that an operator can maintain and overhaul the chambers conveniently, the service life of the temperature impact test box is prolonged, the low-temperature chamber and the test chamber are arranged side by side, the high-temperature chamber and the test chamber are arranged side by side, and therefore, the temperature impact test box is convenient to maintain and repair. Therefore, a test box door, a low-temperature box door and a high-temperature box door are arranged on the box body, each chamber is provided with an independent box door, and later maintenance and repair are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of test boxes, and more specifically to a transverse three-box temperature shock test box. Background Art

[0002] The temperature shock test chamber is mainly used to conduct reliability tests on electrical and electronic products, components, parts, and metal materials under high and low temperature conditions, various temperature shocks, and temperature changes. According to national standards or user-defined requirements, the physical and other related characteristics of the product are tested in a simulated extreme environment to determine whether the product's performance can meet the design requirements, so as to discover problems and optimize the product.

[0003] Existing temperature shock test chambers are generally such as those with publication number CN216847329U and patent name "A three-chamber temperature shock test chamber", which adopts a top-to-bottom distribution structure of high-temperature chambers, test chambers and low-temperature chambers, and a chamber door is provided at the front end of the test chamber to facilitate the placement of the product to be tested into the test chamber. Although such a design can isolate the high-temperature area from the low-temperature area, thereby reducing the impact of heat transfer and cold transfer on the temperature of other chambers, such a design not only increases the space occupancy rate of the equipment in the height direction, but also, due to the limitation of human height, when the chamber located at the top layer is abnormal, it is difficult to repair, and sometimes even the whole machine needs to be disassembled for repair. Secondly, the maintenance difficulty of each chamber of the temperature shock test chamber is also high, which seriously affects the service life of the temperature shock test chamber. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a horizontal three-chamber temperature shock test chamber to solve the problem that the existing temperature shock test chamber is difficult to maintain and repair.

[0005] The technical solution of the utility model is as follows: A horizontal three-box temperature shock test box, comprising:

[0006] A box body is provided with a low-temperature chamber, a test chamber and a high-temperature chamber, the low-temperature chamber, the test chamber and the high-temperature chamber are all located on the same horizontal line, and the low-temperature chamber and the test chamber are arranged side by side, and the high-temperature chamber and the test chamber are arranged side by side, and the box body is provided with a test box door corresponding to the test chamber, a low-temperature box door corresponding to the low-temperature chamber, and a high-temperature box door corresponding to the high-temperature chamber.

[0007] Furthermore, it also includes a mechanical room, in which a refrigeration unit is arranged, and the low-temperature chamber, the test chamber and the high-temperature chamber are arranged around the periphery of the mechanical room to form an L-shaped structure.

[0008] Furthermore, it also includes a power distribution cabinet, which is arranged on one side of the box body and is used to supply power to the box body and the mechanical room.

[0009] Furthermore, the low-temperature chamber and the test chamber are connected through a first air duct and a second air duct, the first air duct is located above the second air duct, and a first driving mechanism is provided in the low-temperature chamber. The first driving mechanism is used to send the low-temperature air in the low-temperature chamber into the first air duct and guide it to the test chamber through the first air duct, and the second air duct is used to supply the air in the test chamber to flow into the low-temperature chamber.

[0010] Furthermore, the high-temperature chamber and the test chamber are connected through a third air duct and a fourth air duct, the third air duct is located above the fourth air duct, and a second driving mechanism is provided in the high-temperature chamber. The second driving mechanism is used to send the high-temperature air in the high-temperature chamber into the third air duct, and guide the high-temperature air to the test chamber through the third air duct, and the fourth air duct is used to supply the air in the test chamber to flow into the high-temperature chamber.

[0011] Furthermore, the first air duct, the second air duct, the third air duct and the fourth air duct are each provided with a corresponding damper for sealing, and the damper is connected to a cylinder, and the cylinder is used to control the damper to switch between an open state and a closed state.

[0012] Furthermore, the first driving mechanism and the second driving mechanism both include a motor, a volute, and an impeller located in the volute, the impeller is connected to an output end of the motor, and the motor is used to drive the impeller to rotate to drive air flow.

[0013] Furthermore, an evaporator and a cold storage sheet are provided in the low-temperature chamber, and the evaporator and the cold storage sheet are used for refrigeration.

[0014] Furthermore, a heater is provided in the high temperature chamber, and the heater is used for heating.

[0015] Furthermore, an observation window is provided on the test box door, and the observation window is used to observe the state of the sample in the test chamber.

[0016] The utility model according to the above scheme has the beneficial effects of: a horizontal three-chamber temperature shock test box, including a box body, in which a low-temperature chamber, a test chamber and a high-temperature chamber are arranged, and the low-temperature chamber, the test chamber and the high-temperature chamber are all located on the same horizontal line, so that the box structure is more compact, and the space occupied by the temperature shock test box in the height direction is reduced. The low-temperature chamber, the test chamber and the high-temperature chamber are arranged in a flat manner, which is convenient for operators to maintain and repair each chamber, thereby extending the service life of the temperature shock test box. Secondly, the low-temperature chamber and the test chamber are arranged side by side, and the high-temperature chamber and the test chamber are arranged side by side. This design makes it easy to set a test chamber door, a low-temperature chamber door and a high-temperature chamber door on the box body, so that each chamber has an independent chamber door, which is more convenient for later maintenance and repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is one of the structural schematic diagrams of a horizontal three-box temperature shock test box in an embodiment of the utility model;

[0019] Figure 2 This is the second structural schematic diagram of a horizontal three-box temperature shock test box in an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the air circulation flow between the low temperature chamber and the test chamber;

[0021] Figure 4 Schematic diagram of air flow when the low temperature chamber and the test chamber are connected;

[0022] Figure 5 It is a schematic diagram of the air circulation flow between the high temperature chamber and the test chamber;

[0023] Figure 6 Schematic diagram of air flow when the high temperature chamber and the test chamber are connected;

[0024] Figure 7 FIG. 1 is a schematic diagram of air flow in the test chamber when the third air duct and the fourth air duct are in a closed state. FIG.

[0025] In the figure, 1. box body; 11. low-temperature chamber; 111. low-temperature box door; 112. evaporator; 12. test chamber; 121. test box door; 13. high-temperature chamber; 131. high-temperature box door; 132. heater; 2. mechanical room; 3. distribution cabinet; 31. control panel; 32. main power switch; 41. first air duct; 42. second air duct; 51. third air duct; 52. fourth air duct; 6. damper; 7a. first drive mechanism; 7b. second drive mechanism; 71. motor; 72. volute; 73. impeller; 8. observation window; 9. normal temperature damper. DETAILED DESCRIPTION

[0026] The following detailed description and drawings of the embodiments of the present invention are used to illustrate the principle of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the embodiments described.

[0027] In the description of the present invention, it should be noted that, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc., are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0029] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0030] See also Figure 1 to Figure 7As shown, the utility model provides a horizontal three-chamber temperature shock test box, including a box body 1, in which a low-temperature chamber 11, a test chamber 12 and a high-temperature chamber 13 are arranged. The low-temperature chamber 11, the test chamber 12 and the high-temperature chamber 13 are all located on the same horizontal line, so that the structure of the box body 1 is more compact, and the space occupied by the temperature shock test box in the height direction is reduced. The low-temperature chamber 11, the test chamber 12 and the high-temperature chamber 13 are arranged in a flat manner to facilitate the operator to maintain and repair each chamber, thereby extending the service life of the temperature shock test box. Secondly, the low-temperature chamber 11 and the test chamber 12 are arranged side by side, and the high-temperature chamber 13 and the test chamber 12 are arranged side by side. This design makes it easy to set a test chamber door 121, a low-temperature chamber door 111 and a high-temperature chamber door 131 on the box body 1, so that each chamber has an independent chamber door, which is more convenient for later maintenance and repair.

[0031] In this embodiment, the test chamber door 121, the low temperature chamber door 111 and the high temperature chamber door 131 all include an outer door panel, an inner door panel, a hinge and a door lock. The test chamber door 121 is provided with an observation window 8 for observing the state of the sample in the test chamber 12.

[0032] Specifically, an evaporator 112 and a cold storage sheet are arranged in the low temperature chamber 11, and the evaporator 112 and the cold storage sheet are used for cooling. A heater 132 is arranged in the high temperature chamber 13, and the heater 132 is used for heating.

[0033] Preferably, the horizontal three-chamber temperature shock test chamber provided by the utility model further includes a machine room 2, in which a refrigeration unit is arranged, and a low-temperature chamber 11, a test chamber 12, and a high-temperature chamber 13 are arranged around the periphery of the machine room 2 to form an L-shaped structure. Specifically, by arranging the low-temperature chamber 11, the test chamber 12, and the high-temperature chamber 13 around the machine room 2, the space can be used more effectively, making the overall layout of the equipment more compact. Secondly, placing the refrigeration unit in the machine room 2 can protect the refrigeration unit from the influence of the external environment, thereby improving the stability and service life of the horizontal three-chamber temperature shock test chamber.

[0034] The utility model provides a horizontal three-box temperature shock test box, which also includes a power distribution cabinet 3. The power distribution cabinet 3 is arranged on one side of the box body 1 and is used to supply power to the box body 1 and the mechanical room 2. In the present embodiment, the inside of the power distribution cabinet 3 is an electrical control system for the entire device. Specifically, a control panel 31 and a main power switch 32 are provided on the front face of the power distribution cabinet 3. The main power switch 32 is used to control the power on and off of the entire power distribution cabinet 3. The main power switch 32 adopts a mechanical switch or a solid-state switch, and has overload protection and short-circuit protection functions to ensure the normal operation of the power distribution cabinet 3. The main power switch 32 is located next to the control panel 31, which is convenient for the operator to quickly cut off or connect the power.

[0035] Specifically, the control panel 31 is provided with a controller, an over-temperature alarm, a cumulative time display and an emergency stop button; the controller is used to receive and process signals from various sensors, and automatically control the power distribution cabinet 3 according to a preset program and control logic. The controller uses an intelligent control chip such as a microprocessor or a programmable logic controller (PLC); the over-temperature alarm includes a temperature sensor and an alarm. When the temperature inside the power distribution cabinet 3 exceeds the preset safety range, the over-temperature alarm triggers an alarm to remind the operator to handle it in time; to prevent safety accidents such as damage or fire caused by overheating of the equipment; the cumulative time display is a device in the power distribution cabinet 3 for recording the running time of the equipment. The cumulative time display includes a timer or a liquid crystal display. Through the cumulative time display, the operator can understand the running time of the horizontal three-box temperature shock test box. The emergency stop button is designed with a large red button, which is easy to find and press quickly in an emergency, so as to quickly stop the operation of the equipment. When encountering an emergency or needing to stop the horizontal three-box temperature shock test box immediately, the operator presses the emergency stop button to trigger the emergency stop function, so that the equipment stops running quickly.

[0036] Preferably, the low-temperature chamber 11 and the test chamber 12 are connected by a first air duct 41 and a second air duct 42, thereby realizing air circulation. The first air duct 41 is located above the second air duct 42. A first driving mechanism 7a is provided in the low-temperature chamber 11. The first driving mechanism 7a is used to send the low-temperature air in the low-temperature chamber 11 into the first air duct 41, and guide it to the test chamber 12 through the first air duct 41. The second air duct 42 is used for the air in the test chamber 12 to flow into the low-temperature chamber 11, thereby forming a cold air circulation path, ensuring that the hot air in the test chamber 12 can be effectively discharged and replaced by low-temperature air, thereby maintaining the low-temperature environment of the test chamber 12.

[0037] Preferably, the high temperature chamber 13 and the test chamber 12 are connected through the third air duct 51 and the fourth air duct 52 to achieve air circulation between the high temperature chamber 13 and the test chamber 12. The third air duct 51 is located above the fourth air duct 52, and the hot air enters the test chamber 12 from the third air duct 51. Then, under the action of gravity, the hot air moves from the upper layer of the test chamber 12 to the lower layer of the test chamber 12. The hot air does not need to overcome gravity to climb upward, so that the temperature in the test chamber 12 can be quickly raised to a predetermined temperature. A second driving mechanism 7b is provided in the high temperature chamber 13. The second driving mechanism 7b is used to send the high temperature air in the high temperature chamber 13 into the third air duct 51, and guide it to the test chamber 12 through the third air duct 51. The fourth air duct 52 is used to allow the air in the test chamber 12 to flow into the high temperature chamber 13.

[0038] Specifically, the first air duct 41, the second air duct 42, the third air duct 51 and the fourth air duct 52 are each provided with a corresponding damper 6 for sealing, and the damper 6 is connected to a cylinder, and the cylinder is used to control the damper 6 to switch between an open state and a closed state.

[0039] Preferably, the first drive mechanism 7a and the second drive mechanism 7b are both circulating fans. Specifically, the first drive mechanism 7a and the second drive mechanism 7b each include a motor 71, a volute 72 and an impeller 73 located in the volute 72. The impeller 73 is connected to the output end of the motor 71, and the motor 71 is used to drive the impeller 73 to rotate to drive air flow.

[0040] In this embodiment, two normal temperature dampers 9 are further provided at the upper end of the box body 1. The two normal temperature dampers 9 are both located directly above the test chamber 12. When the normal temperature dampers 9 are opened, the test chamber 12 is connected to the outside world to facilitate the exchange of air in the test chamber 12 with the outside air.

[0041] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the utility model.

[0042] The above is an exemplary description of the utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the utility model patent is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the utility model patent, or the concept and technical solution of the utility model patent are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A horizontal three-chamber temperature shock test chamber, characterized in that: include: A box (1), wherein a low-temperature chamber (11), a test chamber (12) and a high-temperature chamber (13) are arranged in the box (1); the low-temperature chamber (11), the test chamber (12) and the high-temperature chamber (13) are all located on the same horizontal line, and the low-temperature chamber (11) and the test chamber (12) are arranged side by side, and the high-temperature chamber (13) and the test chamber (12) are arranged in parallel; and the box (1) is provided with a test chamber door (121) corresponding to the test chamber (12), a low-temperature chamber door (111) corresponding to the low-temperature chamber (11) and a high-temperature chamber door (131) corresponding to the high-temperature chamber (13).

2. A horizontal three-chamber temperature shock test chamber as claimed in claim 1, characterized in that: It also includes a machine room (2), in which a refrigeration unit is arranged, and the low-temperature chamber (11), the test chamber (12) and the high-temperature chamber (13) are arranged around the periphery of the machine room (2) to form an L-shaped structure.

3. A horizontal three-chamber temperature shock test chamber as claimed in claim 2, characterized in that: It also comprises a power distribution cabinet (3), which is arranged on one side of the box body (1) and is used to supply power to the box body (1) and the machine room (2).

4. A horizontal three-chamber temperature shock test chamber as claimed in claim 1, characterized in that: The low-temperature chamber (11) and the test chamber (12) are connected via a first air duct (41) and a second air duct (42); the first air duct (41) is located above the second air duct (42); a first driving mechanism (7a) is provided in the low-temperature chamber (11); the first driving mechanism (7a) is used to send low-temperature air in the low-temperature chamber (11) into the first air duct (41), and guide the low-temperature air through the first air duct (41) to the test chamber (12); the second air duct (42) is used to allow the air in the test chamber (12) to flow into the low-temperature chamber (11).

5. A horizontal three-chamber temperature shock test chamber as claimed in claim 4, characterized in that: The high-temperature chamber (13) and the test chamber (12) are connected via a third air duct (51) and a fourth air duct (52); the third air duct (51) is located above the fourth air duct (52); a second driving mechanism (7b) is provided in the high-temperature chamber (13); the second driving mechanism (7b) is used to send the high-temperature air in the high-temperature chamber (13) into the third air duct (51), and guide the high-temperature air through the third air duct (51) to the test chamber (12); the fourth air duct (52) is used to allow the air in the test chamber (12) to flow into the high-temperature chamber (13).

6. A horizontal three-chamber temperature shock test chamber as claimed in claim 5, characterized in that: The first air duct (41), the second air duct (42), the third air duct (51) and the fourth air duct (52) are each provided with a damper (6) for sealing, and the damper (6) is connected to a cylinder, and the cylinder is used to control the damper (6) to switch between an open state and a closed state.

7. A horizontal three-chamber temperature shock test chamber as claimed in claim 5, characterized in that: The first driving mechanism (7a) and the second driving mechanism (7b) both comprise a motor (71), a volute (72), and an impeller (73) located in the volute (72); the impeller (73) is connected to an output end of the motor (71); and the motor (71) is used to drive the impeller (73) to rotate so as to drive air flow.

8. A horizontal three-chamber temperature shock test chamber as claimed in claim 1, characterized in that: An evaporator (112) and a cold storage plate are arranged in the low-temperature chamber (11), and the evaporator (112) and the cold storage plate are used for refrigeration.

9. A horizontal three-chamber temperature shock test chamber as claimed in claim 1, characterized in that: A heater (132) is arranged in the high-temperature chamber (13), and the heater (132) is used for heating.

10. A horizontal three-chamber temperature shock test chamber as claimed in claim 1, characterized in that: The test chamber door (121) is provided with an observation window (8), and the observation window (8) is used to observe the state of the sample in the test chamber (12).

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