PTC heater detection device with rapid cooling function

Abstract

The utility model relates to the technical field of PTC heater detection, and discloses a PTC heater detection device with a rapid cooling function, which comprises a shell, a door plate is hinged to one side of the shell, a plurality of air outlets are formed in the two sides of the shell, a placement table is arranged in the shell, an air blowing hole is formed in the top of the placement table, and the air blowing hole is communicated with the air blowing hole. A cavity is formed in the containing table, and the inner wall of the bottom of the cavity is connected with a turbofan. The blocking state of the air outlet and the air blowing hole is relieved through the first blocking assembly and the second blocking assembly, so that a circulation channel is formed between the interior and the exterior of the shell, then the turbofan is started, the turbofan rotates to enable air outside the shell to enter the interior of the containing table through the ventilation pipe, and the containing table can be used for containing air. And then the hot air is blown out from the air blowing hole and is used for blowing and cooling the PTC heater, and meanwhile, the hot air in the shell is discharged from the air outlet, so that the cooling efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heater detection, and more specifically to a PTC heater detection device with rapid temperature reduction. Background Art

[0002] PTC heaters are commonly used in the air-conditioning systems of new energy vehicles. PTC heaters are tested before leaving the factory to ensure their quality after leaving the factory. PTC heaters are usually tested a second time during testing.

[0003] After searching, the Chinese patent document with announcement number CN213600369U discloses a new energy vehicle air-conditioning PTC heater detection device, including a working body and a water flow pipe. It has a simple structure, low cost, and strong practicality. It can avoid the instability of manual detection and improve detection efficiency.

[0004] However, the following defects still exist: during the detection process of the PTC heater, in order to detect the heating efficiency of the PTC heater, it is usually tested in a closed environment. When the ambient temperature of the PTC is too high, the resistance of the PTC material in the PTC heater increases, and heat is no longer generated. The closed environment needs to be cooled down quickly before the PTC heater can be tested. When detecting the heating efficiency of the PTC heater, it relies on natural cooling to cool down, resulting in low PTC detection efficiency. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a PTC heater detection device with rapid temperature reduction to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a PTC heater detection device with rapid cooling, comprising a shell, a door panel is hinged on one side of the shell, a plurality of air outlets are provided on both sides of the shell, a placement table is provided inside the shell, a blowing hole is provided on the top of the placement table, a cavity is provided inside the placement table, a turbo fan is connected to the bottom inner wall of the cavity, ventilation pipes are fixedly connected on both sides of the placement table, the ends of the ventilation pipes pass through the shell, so that the inside and outside of the shell form a circulation channel through the cavity and the ventilation pipes in the placement table, a blocking component 1 for closing the air outlet is provided inside the shell, a blocking component 2 for closing the blowing hole is provided inside the placement table, so that the inside of the shell is in two states of closing and opening, and a positioning component for straightening the PTC heater on the placement table is provided on the top of the two ventilation pipes.

[0007] As a further solution of the utility model, the blocking component is a U-shaped frame, which is slidably connected between the inner walls of both sides of the shell, and oppositely distributed through grooves are provided on both sides of the U-shaped frame. The through grooves can be in a coincidence state with the air outlet, and a power component for moving the U-shaped frame is provided on the top of the shell.

[0008] As a further solution of the utility model, the power assembly is an electric push rod, which is fixedly connected to the top outer wall of the shell, and one end of the electric push rod passes through the shell and is fixed to the U-shaped frame.

[0009] As a further solution of the utility model, the second blocking component is a rotating shaft, which is fixedly connected to the top inner wall of the placement table cavity, and the bottom end of the rotating shaft is rotatably connected to a leakage hole disk, and a avoidance groove is opened on the top of the leakage hole disk, and a torsion spring is fixedly connected to the circumferential inner wall of the avoidance groove, and one end of the torsion spring is fixed to the rotating shaft, and two pull ropes are fixedly connected to the circumferential outer side of the leakage hole disk, and one end of the pull rope passes through the placement table and is respectively fixed to the two bottom ends of the U-shaped frame.

[0010] As a further solution of the utility model, the leakage holes of the leakage hole plate correspond one-to-one to the blowing holes opened on the placement table, so that the leakage holes of the leakage hole plate can be in an overlapping state with the blowing holes of the placement table.

[0011] As a further solution of the utility model, the positioning assembly is two slides, and the two slides are respectively slidably connected to the top outer walls of the two ventilation pipes, a slide is inserted into one side of the slide, two springs are fixedly connected to one side of the slide, and one end of the spring is fixed to the slide, and the bottom of the U-shaped frame is fixedly connected to two wedge plates distributed in an opposite manner, and the wedge plates are in contact with the slides.

[0012] As a further solution of the utility model, two protrusions are provided on one side of the two slides, and the two protrusions are distributed in an opposing manner. The two protrusions are fixed to the slides in an inserting manner, and the protrusions can be inserted at any position of the slides.

[0013] As a further solution of the utility model, the interiors of the two ventilation pipes are fixedly connected with cooling water pipes, so that the cooling water pipes form a U-shape inside the ventilation pipes.

[0014] Technical effects and advantages of the utility model:

[0015] 1. The utility model releases the blocking state of the air outlet and the air blowing hole through the blocking component 1 and the blocking component 2, thereby forming a circulation channel between the inside and outside of the shell, and then starts the turbo fan. The turbo fan rotates to allow the air outside the shell to enter the inside of the placement table through the ventilation pipe, and then blows out from the air blowing hole to cool the PTC heater. At the same time, the hot air inside the shell is discharged from the air outlet, thereby further improving the cooling efficiency.

[0016] 2. The utility model uses a power component to move the U-shaped frame upward to a suitable position, thereby moving the U-shaped frame upward, and causing the through slot to be misaligned with the air outlet, thereby blocking the air outlet. At the same time, the torsion spring rebounds and resets to drive the leakage plate to rotate, thereby causing the leakage hole of the leakage plate to be misaligned with the blowing hole, thereby blocking the blowing hole, thereby forming a closed space inside the shell. After the test is completed, the U-shaped frame is moved downward by the power component, thereby causing the through slot to overlap with the air outlet again. At the same time, the leakage plate is driven to rotate by the pull rope, so that the leakage hole of the leakage plate overlaps with the blowing hole again, thereby forming a circulation channel between the inside and outside of the shell.

[0017] 3. The utility model drives the two wedge-shaped plates downward while the U-shaped frame moves downward, so that the inclined surface of the wedge-shaped plate contacts and squeezes the slide plate, so that the two opposite slide plates move inward along the inclined surface of the wedge-shaped plate, so that the two slide plates drive the slide frame to move inward through the spring, and squeeze the PTC heater through the slide frame and the spring, so that the PTC heater is moved to the middle position of the placement table, which is convenient for blowing air to cool the PTC heater later. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 3 It is a partial enlarged structural schematic diagram of the utility model.

[0021] Figure 4 This is a partial cross-sectional structural diagram of the utility model

[0022] Figure 5 It is a schematic diagram of the enlarged structure of the torsion spring of the utility model.

[0023] The accompanying drawings are marked as follows: 1. shell; 2. door panel; 3. electric push rod; 4. air outlet; 5. cooling water pipe; 7. U-shaped frame; 8. placement table; 9. ventilation duct; 10. through groove; 11. slide plate; 12. spring; 13. slide; 14. pull rope; 15. wedge plate; 16. turbo fan; 17. leakage hole plate; 18. avoidance groove; 19. torsion spring; 20. rotating shaft; 21. blowing hole. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0025] Reference Figure 1-Figure 5 The utility model provides a PTC heater detection device with rapid temperature reduction, including a shell 1, a door panel 2 is hinged on one side of the shell 1, a plurality of air outlets 4 are provided on both sides of the shell 1, a placement platform 8 is provided inside the shell 1, a blowing hole 21 is provided on the top of the placement platform 8, a cavity is provided inside the placement platform 8, a turbo fan 16 is bolted to the bottom inner wall of the cavity, ventilation pipes 9 are welded on both sides of the placement platform 8, the ends of the ventilation pipes 9 pass through the shell 1, so that the inside and outside of the shell 1 form a circulation channel through the cavity and the ventilation pipes 9 in the placement platform 8, a blocking component 1 for closing the air outlet 4 is provided inside the shell 1, and a blocking component 2 for closing the blowing hole 21 is provided inside the placement platform 8, so that the inside of the shell 1 is in two states of closing and opening, and a positioning component for straightening the PTC heater on the placement platform 8 is provided on the top of the two ventilation pipes 9. When in use, first place the PTC heater The PTC heater is placed on the placement table 8, and then the air outlet 4 is blocked by a blocking component pair. While the air outlet 4 is blocked, the air hole 21 is blocked by a blocking component pair. At the same time, the PTC heater is pushed by the positioning component and moved to the middle position of the placement table 8. Then the door panel 2 is closed to form a closed space inside the shell 1, which is convenient for testing the PTC heater. After the test, the PTC heater needs to be cooled. At this time, the blocking components one and two release the blocking state of the air outlet 4 and the air hole 21, so that a circulation channel is formed between the inside and outside of the shell 1, and then the turbofan 16 is started. The turbofan 16 rotates to allow the air outside the shell 1 to enter the inside of the placement table 8 through the ventilation pipe 9, and then blown out from the air hole 21 to cool the PTC heater. At the same time, the hot air inside the shell 1 is discharged from the air outlet 4, thereby further improving the cooling efficiency.

[0026] In the utility model, the blocking component is a U-shaped frame 7, which is slidably connected between the inner walls of both sides of the shell 1. Oppositely distributed through grooves 10 are provided on both sides of the U-shaped frame 7, and the through grooves 10 can be in a coincidence state with the air outlet 4. A power component for moving the U-shaped frame 7 is provided on the top of the shell 1, so that the U-shaped frame 7 moves upward and the through groove 10 is misaligned with the air outlet 4, thereby blocking the air outlet 4. The power component is an electric push rod 3, which is fixed to the top outer wall of the shell 1 by bolts. One end of the electric push rod 3 passes through the shell 1 and is fixed to the U-shaped frame 7. The electric push rod 3 is started to shorten the electric push rod 3 and drive the U-shaped frame 7 to move upward.

[0027] In the utility model, the second blocking component is a rotating shaft 20, which is fixed to the top inner wall of the cavity of the placement table 8 by bolts, and the bottom end of the rotating shaft 20 is rotatably connected to the leakage plate 17, and the top of the leakage plate 17 is provided with an avoidance groove 18, and the circumferential inner wall of the avoidance groove 18 is welded with a torsion spring 19, and one end of the torsion spring 19 is fixed to the rotating shaft 20, and two pull ropes 14 are bonded to the outer side of the circumference of the leakage plate 17, and one end of the pull rope 14 passes through the placement table 8 and is respectively connected to the U The two bottom ends of the frame 7 are fixed, and the torsion spring 19 rebounds and resets to drive the leak plate 17 to rotate, so that the leak hole of the leak plate 17 and the blowing hole 21 are misaligned, and the blowing hole 21 is blocked, so that a closed space is formed inside the shell 1, and the leak holes of the leak plate 17 correspond one by one to the blowing holes 21 opened on the placement table 8, so that the leak holes of the leak plate 17 can be in a coincidence state with the blowing holes 21 of the placement table 8, thereby facilitating the blocking of the blowing holes 21.

[0028] In the utility model, the positioning assembly is two slide plates 11, and the two slide plates 11 are respectively slidably connected to the top outer walls of the two ventilation pipes 9. A slide 13 is inserted on one side of the slide 11, and two springs 12 are welded on one side of the slide 13, and one end of the spring 12 is fixed to the slide 11. The bottom of the U-shaped frame 7 is fixed with two wedge-shaped plates 15 distributed in an opposite manner by bolts, and the wedge-shaped plates 15 are in contact with the slide 11. When the U-shaped frame 7 moves downward, it drives the two wedge-shaped plates 15 to move downward, so that the inclined surface of the wedge-shaped plates 15 contacts and squeezes the slide 11, so that the two opposite sides are The slide plate 11 moves inward while moving along the inclined surface of the wedge plate 15, so that the two slide plates 11 drive the slide 13 to move inward through the spring 12, and the PTC heater is squeezed by the slide 13 and the spring 12, so that the PTC heater is moved to the middle position of the placement table 8, which is convenient for blowing and cooling the PTC heater later. Two protrusions are provided on one side of the two slides 13, and the two protrusions are distributed in an opposite manner. The two protrusions are fixed to the slide 13 in a plug-in manner, and the protrusions can be plugged in at any position of the slide 13, so as to facilitate pushing PTC heaters of different sizes.

[0029] In the utility model, the cooling water pipe 5 is fixed to the inside of the two ventilation pipes 9 by bolts, so that the cooling water pipe 5 forms a U-shape inside the ventilation pipe 9. When in use, the cooling water pipe 5 is connected to the external cooling and forms a water circulation, so that the air entering the shell 1 is further cooled, thereby effectively improving the cooling efficiency of the PTC heater.

[0030] The working principle of the utility model is as follows: when in use, the PTC heater is first placed on the placement table 8, and then the electric push rod 3 is shortened to move the U-shaped frame 7 upward to a suitable position, so that the U-shaped frame 7 moves upward, and the through slot 10 is misaligned with the air outlet 4, thereby blocking the air outlet 4. At the same time, the torsion spring 19 rebounds and resets to drive the leakage plate 17 to rotate, so that the leakage hole of the leakage plate 17 is misaligned with the blowing hole 21, thereby blocking the blowing hole 21, so that a closed space is formed inside the shell 1, and the U-shaped frame 7 moves downward while driving the two wedge plates 15 to move downward, so that the inclined surface of the wedge plate 15 contacts and squeezes the slide plate 11, so that the two opposite slide plates 11 move inward while moving along the inclined surface of the wedge plate 15, so that the two slide plates 11 drive the slide 13 to move inward through the spring 12, and the PTC heater is squeezed by the slide 13 and the spring 12, so that the PTC heater moves to the middle position of the placement table 8, which is convenient for the subsequent adjustment. The PTC heater is cooled by blowing air, and then the door panel 2 is closed to form a closed space inside the shell 1, which is convenient for testing the PTC heater. After the test is completed, the PTC heater needs to be cooled. At this time, the electric push rod 3 is extended to move the U-shaped frame 7 downward, so that the through groove 10 is overlapped with the air outlet 4 again, and the leakage hole plate 17 is driven to rotate by the pull rope 14, so that the leakage hole of the leakage hole plate 17 is overlapped with the blowing hole 21 again, so that a circulation channel is formed between the inside and outside of the shell 1, and then the turbo fan 16 is started. The turbo fan 16 rotates to allow the air outside the shell 1 to enter the inside of the placement table 8 through the ventilation pipe 9, and then blown out from the blowing hole 21 and the PTC heater is cooled by blowing air. At the same time, the hot air inside the shell 1 is discharged from the air outlet 4, thereby further improving the cooling efficiency. At the same time, the cooling water pipe 5 is connected to the external cooling to form a water cycle, so that the air entering the shell 1 is further cooled, thereby effectively improving the cooling efficiency of the PTC heater.

[0031] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0032] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A PTC heater detection device with rapid cooling, comprising a housing (1), a door panel (2) being hingedly connected to one side of the housing (1), and a plurality of air outlets (4) being provided on both sides of the housing (1). Features: A placement table (8) is provided inside the shell (1), a blowing hole (21) is provided on the top of the placement table (8), a cavity is provided inside the placement table (8), and a turbo fan (16) is connected to the bottom inner wall of the cavity. Ventilation pipes (9) are fixedly connected to both sides of the placement table (8), and the ends of the ventilation pipes (9) pass through the shell (1), so that the inside and outside of the shell (1) form a circulation channel through the cavity in the placement table (8) and the ventilation pipes (9). A blocking component 1 for closing the air outlet (4) is provided inside the shell (1), and a blocking component 2 for closing the blowing hole (21) is provided inside the placement table (8), so that the inside of the shell (1) is in two states, closed and open. Positioning components for straightening the PTC heater on the placement table (8) are provided on the tops of the two ventilation pipes (9).

2. A PTC heater detection device with rapid temperature reduction according to claim 1, Features: The first blocking component is a U-shaped frame (7), the U-shaped frame (7) being slidably connected between the inner walls of both sides of the shell (1), both sides of the U-shaped frame (7) being provided with through grooves (10) arranged opposite to each other, the through grooves (10) being able to overlap with the air outlet (4), and the top of the shell (1) being provided with a power component for moving the U-shaped frame (7).

3. A PTC heater detection device with rapid temperature reduction according to claim 1, Features: The interiors of the two ventilation pipes (9) are fixedly connected to cooling water pipes (5), so that the cooling water pipes (5) form a U-shape inside the ventilation pipes (9).

4. A PTC heater detection device with rapid temperature reduction according to claim 2, Features: The power assembly is an electric push rod (3), which is fixedly connected to the top outer wall of the housing (1), and one end of the electric push rod (3) passes through the housing (1) and is fixed to the U-shaped frame (7).

5. A PTC heater detection device with rapid temperature reduction according to claim 4, Features: The second blocking component is a rotating shaft (20), which is fixedly connected to the top inner wall of the cavity of the placement table (8). The bottom end of the rotating shaft (20) is rotatably connected to a leak plate (17). A avoidance groove (18) is provided on the top of the leak plate (17). A torsion spring (19) is fixedly connected to the circumferential inner wall of the avoidance groove (18), and one end of the torsion spring (19) is fixed to the rotating shaft (20). Two pull ropes (14) are fixedly connected to the circumferential outer side of the leak plate (17), and one end of the pull rope (14) passes through the placement table (8) and is respectively fixed to the two bottom ends of the U-shaped frame (7).

6. A PTC heater detection device with rapid temperature reduction according to claim 5, Features: The leak holes of the leak hole plate (17) correspond one-to-one to the air blowing holes (21) provided on the placement table (8), so that the leak holes of the leak hole plate (17) can overlap with the air blowing holes (21) of the placement table (8).

7. A PTC heater detection device with rapid temperature reduction according to claim 5, Features: The positioning assembly comprises two slide plates (11), the two slide plates (11) are slidably connected to the top outer walls of the two ventilation pipes (9), a slide frame (13) is inserted into one side of the slide plate (11), two springs (12) are fixedly connected to one side of the slide frame (13), and one end of the spring (12) is fixed to the slide plate (11), and two wedge plates (15) are fixedly connected to the bottom of the U-shaped frame (7) and are distributed in an opposing manner, and the wedge plates (15) are in contact with the slide plate (11).

8. A PTC heater detection device with rapid temperature reduction according to claim 7, Features: Two protrusions are provided on one side of the two slides (13), and the two protrusions are distributed in an opposing manner. The two protrusions are fixed to the slides (13) in an inserting manner, and the protrusions can be inserted at any position of the slides (13).

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