Vehicle-mounted semiconductor refrigerator

Abstract

The utility model relates to the technical field of semiconductor refrigerators, and discloses a vehicle-mounted semiconductor refrigerator which comprises a shell and a drawer box, and the shell comprises an inner shell and an outer shell; a semiconductor refrigeration assembly and a central control assembly are installed on the shell, a lower air duct and a rear air duct are arranged on the shell, the lower air duct communicates with the rear air duct, and an air outlet is formed in the upper portion of the front side of the shell and communicates with the rear air duct; a return air inlet is formed in the lower part of the rear side and communicated with the lower air duct; an inner fan is installed at the air return opening of the shell, and a plurality of air circulation holes are formed in the two sides of the storage drawer. The return air inlet is formed in the lower portion of the rear side of the refrigerator, the air outlet is formed in the upper portion of the front side of the refrigerator, and the air circulation holes are formed in the two sides of the storage drawer, so that the problems of uneven refrigeration temperature, low temperature at the air inlet and high temperature away from the air inlet in an existing design in the market are solved, and the effects of higher cooling rate and higher cooling efficiency are achieved. And the cooling effect in the refrigerator is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor refrigerator technology, specifically, a vehicle-mounted semiconductor refrigerator. Background Technology

[0002] With the progress of the times and the development of technology, automobiles are no longer just a means of transportation; they have become more intelligent and technologically advanced, with more usage scenarios and functions. In particular, the rise of electric vehicles (EVs) and smart cars has led to a growing demand for in-vehicle equipment. Car refrigerators, as a common accessory, provide convenient food and beverage storage, greatly enhancing the user experience, especially during long journeys and in high-temperature environments.

[0003] Semiconductor refrigerators utilize semiconductor refrigeration technology, based on the thermoelectric effect. Cooling is achieved by generating a heating or cooling effect when an electric current flows through a semiconductor material. This technology is not only small in size, highly energy-efficient, and low-noise, but also provides stable cooling without taking up too much space inside the vehicle. However, existing semiconductor refrigerators suffer from slow cooling speeds and uneven cooling; objects near the cooling element cool down quickly, while items farther away cool down slowly, failing to better meet the needs of passengers. Utility Model Content

[0004] The purpose of this invention is to provide a vehicle-mounted semiconductor refrigerator that solves the problems of uneven cooling temperature, low temperature at the air vent, and high temperature away from the air vent in existing designs on the market.

[0005] This utility model is achieved through the following technical solution: a vehicle-mounted semiconductor refrigerator includes a shell and a drawer box, the drawer box being slidably connected to the shell. The shell includes an inner shell and an outer shell, the inner shell being sealed and installed on the outer shell. A semiconductor refrigeration component and a central control component are installed on the shell. The drawer box includes a storage drawer and a drawer trim panel, the drawer trim panel being snapped onto the storage drawer. A lower air duct and a rear air duct are provided on the shell, the lower air duct and the rear air duct being connected. The semiconductor refrigeration component is installed in the lower air duct and the rear air duct. At the connection point, an air outlet is provided on the upper front side of the housing, which is connected to the rear air duct; an air return port is provided on the lower rear side, which is connected to the lower air duct; an internal fan is installed on the housing at the air return port, and multiple air circulation holes are provided on both sides of the storage drawer; when the internal fan is started, the airflow is blown into the housing through the rear air duct and the air outlet, which cools the items in the storage drawer evenly, and then flows through the air circulation holes, the air return port, and the lower air duct to the semiconductor cooling component for cooling. The cooled airflow continues to be blown into the housing through the rear air duct, forming a circulation.

[0006] To better realize this utility model, the semiconductor cooling assembly further includes a semiconductor cooling unit installed on the rear air duct, the semiconductor cooling unit is equipped with outer fins and inner fins, the inner fins are located in the rear air duct, the outer fins are equipped with an external fan bracket, and the external fan is installed on the external fan bracket.

[0007] To better realize this utility model, the central control component further includes a PCBA lower bracket mounted on the housing, and a PCBA upper cover and a PCBA controller are mounted on the PCBA lower bracket. The PCBA upper cover is used to protect the PCBA controller.

[0008] To better realize this utility model, the inner shell further includes an inner storage shell, and the return air vent and the outlet air vent are arranged on the inner storage shell; the outer shell includes an outer protective shell, an outer cover, and a shell decorative panel, the outer cover, the inner storage shell, and the outer protective shell are connected by the shell decorative panel, a box foam layer is filled between the inner shell and the outer shell, a box door foam layer is filled between the storage drawer and the drawer decorative panel, and a sealing strip is provided on the storage drawer.

[0009] To better realize this utility model, a light is further installed on the inner storage shell, a reed switch is installed on the shell trim panel, a magnet is installed on the storage drawer, the reed switch and the magnet cooperate, and the reed switch is connected to the central control component for signal connection.

[0010] To better realize this utility model, the inner storage shell is further provided with a slide rail bracket, a slide rail is installed on the slide rail bracket, one side of the slide rail is connected to the slide rail bracket, and the other side is connected to the storage drawer. A damping gear is installed on the slide rail bracket, and a rack is installed on the storage drawer. The damping gear and the rack are engaged.

[0011] To better realize this utility model, a coil spring shaft is installed on the slide rail bracket, and a coil spring is installed on the coil spring shaft. A sliding plate is slidably connected to the slide rail bracket, and a fixed plate is fixedly connected to it. The fixed plate is used to limit the sliding plate, and the sliding plate is connected to the other end of the coil spring.

[0012] To better realize this utility model, a latching assembly is further installed on the shell trim panel to limit the storage drawer and prevent it from being opened accidentally. The latching assembly includes a latch shaft, a latch, an electromagnetic lock, and a torsion spring. The latch shaft is installed on the shell trim panel, and the latch and torsion spring are installed on the latch shaft. The torsion spring cooperates with the latch, and the latch is used to latch the storage drawer. The electromagnetic lock is installed on the outer protective shell, and the output end of the electromagnetic lock is hinged to the latch.

[0013] To better realize this utility model, the electromagnetic lock further includes a telescopic rod, a shock-absorbing rubber, a stop spring, a return spring, a coil, a shock-absorbing ring, and a protective shell. The telescopic rod is slidably connected to the protective shell, the coil is arranged around the outer edge of the telescopic rod, and the stop spring, return spring, and shock-absorbing ring are arranged between the telescopic rod and the protective shell.

[0014] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0015] (1) This utility model solves the problem of uneven cooling temperature, low temperature at the air outlet and high temperature far from the air outlet in the existing design by arranging the return air vent at the lower rear side of the refrigerator and the air outlet at the upper front side of the refrigerator, and opening air circulation holes on both sides of the storage drawer. This achieves a faster cooling rate and a more uniform cooling effect inside the refrigerator.

[0016] (2) By setting up a buckle component, this utility model solves the problems of existing electric unlocking mechanisms on the market, which have many parts, complex coordination, high noise, high cost, and some mechanisms require electric drive extension and electric drive closing, which are cumbersome and cannot quickly and efficiently achieve unlocking and closing. It achieves the effects of simplified structure, low noise, and convenient operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the closed state structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the present invention in the open state.

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model.

[0020] Figure 4 This is an exploded view of the overall structure of this utility model.

[0021] Figure 5 This is a cross-sectional view of the snap-fit ​​assembly structure.

[0022] Figure 6 A schematic diagram of the snap-fit ​​assembly in the open state.

[0023] Figure 7 This is a schematic diagram of the snap-fit ​​assembly in its closed state.

[0024] The components are: 1-Outer shell cover; 2-Lighting lamp; 3-Reed switch; 4-Magnet; 5-Inner storage shell; 6-Shell trim panel; 7-Lock bolt pivot; 8-Damping gear; 9-Lock bolt; 10-Electromagnetic lock; 11-Drawer trim panel; 12-Slide rail; 13-Sealing strip; 14-Storage drawer; 15-Insulation board; 16-Lower air duct; 17-Outer protective shell; 18-Inner fan; 19-Slide rail bracket; 20-Torsion spring; 21-Coil spring; 22-Sliding plate; 23-Fixing plate; 24-Coil spring pivot; 2 5-External fan; 26-External fan bracket; 27-External fins; 28-Semiconductor cooling unit; 29-Inner fins; 30-Rear air duct; 31-PCBA top cover; 32-PCBA controller; 33-PCBA lower bracket; 34-Casing foam layer; 35-Casing door foam layer; 36-Air circulation hole; 37-Return air vent; 38-Air outlet; 101-Telescopic rod; 102-Shock-absorbing rubber; 103-Stop retaining spring; 104-Reset spring; 105-Coil; 106-Shock-absorbing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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.

[0027] Example 1:

[0028] This embodiment provides a vehicle-mounted semiconductor refrigerator, specifically as follows: Figures 1-4As shown, the device includes a housing and a drawer box, with the drawer box slidably connected to the housing. The housing includes an inner housing and an outer housing, with the inner housing sealed and installed on the outer housing. A semiconductor cooling component and a central control component are installed on the housing. The drawer box includes a storage drawer 14 and a drawer trim 11, with the drawer trim 11 snapped onto the storage drawer 14. The housing is provided with a lower air duct 16 and a rear air duct 30, which are connected. The semiconductor cooling component is installed at the connection between the lower air duct 16 and the rear air duct 30. An air outlet 38 is provided on the upper front side of the housing, which is connected to the rear air duct 30. An air return vent 37 is provided on the lower rear side, which is connected to the lower air duct 16. An insulation board 15 and an internal fan 18 are installed on the housing at the air return vent 37. The insulation board 15 is used to provide insulation for the internal fan 18. Multiple air circulation holes 36 are provided on both sides of the storage drawer 14.

[0029] When the semiconductor cooling component is working, the internal fan 18 starts. At this time, the airflow flows to the cooling end of the semiconductor cooling component to cool it down. The cooled airflow is blown into the housing from the air outlet 38 through the rear air duct 30, which cools the items in the storage drawer 14 evenly. Then it leaves the storage drawer 14 through the air circulation hole 36, and then returns to the cooling end of the semiconductor cooling component through the return air vent 37 and the lower air duct 16 to cool down, forming a cycle.

[0030] Through CFD fluid analysis and thermal simulation analysis, the return air vent 37 of the refrigerator's air circulation system is positioned at the lower rear of the refrigerator, while the air outlet 38 is positioned at the upper front of the refrigerator. Simultaneously, air circulation holes 36 are provided on both sides of the storage drawer 14. This allows the return air vent 37 to quickly draw air from inside the storage drawer 14 for cooling, before blowing it back into the refrigerator through the air outlet 38. Compared to existing designs where the air outlet 38 is located below the return air vent 37, this design achieves a faster cooling rate and more uniform cooling within the refrigerator, avoiding the uneven cooling temperature and the difference in temperature between the vent and areas further away from the vent found in existing designs.

[0031] Example 2:

[0032] This embodiment further expands upon the semiconductor cooling component based on the above embodiments, specifically as follows: Figure 4 As shown, the semiconductor cooling assembly includes a semiconductor cooling unit 28 installed on the rear air duct 30. The semiconductor cooling unit 28 is equipped with an outer fin 27 and an inner fin 29. The inner fin 29 is located in the rear air duct 30. An external fan bracket 26 is installed on the outer fin 27, and an external fan 25 is installed on the external fan bracket 26.

[0033] When the semiconductor cooling unit 28 is powered on, the side closer to the inner fin 29 begins to cool, and the side closer to the outer fin 27 begins to heat. The airflow circulating inside the refrigerator blows onto the inner fin 29 to cool it, while the external fan 25 blows onto the outer fin 27 to dissipate heat. If the power is reversed, the semiconductor cooling component can provide a heat source for the refrigerator. The working principle of the semiconductor cooling unit 28 is common knowledge that can be easily understood and applied by those skilled in the art, and therefore will not be described in detail.

[0034] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0035] Example 3:

[0036] This embodiment further expands the central control component based on the above embodiments, specifically as follows: Figure 4 As shown, the central control component includes a PCBA lower bracket 33 mounted on the housing, and a PCBA upper cover plate 31 and a PCBA controller 32 are mounted on the PCBA lower bracket 33. The PCBA upper cover plate 31 is used to protect the PCBA controller 32.

[0037] The PCBA controller 32 serves as the controller for the refrigerator assembly, controlling the refrigerator's cooling, motor unlocking, and light on / off functions. Its specific operating control principles are common knowledge that can be easily understood and applied by those skilled in the art, and therefore will not be elaborated further.

[0038] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0039] Example 4:

[0040] This embodiment further expands the shell based on the above embodiment, specifically as follows: Figure 4 As shown, the inner shell includes an inner storage shell 5, and the return air vent 37 and the air outlet 38 are disposed on the inner storage shell 5; the outer shell includes an outer protective shell 17, an outer cover 1, and a shell decorative panel 6. The outer cover 1, the inner storage shell 5, and the outer protective shell 17 are connected by the shell decorative panel 6. A box foam layer 34 is filled between the inner shell and the outer shell, and a box door foam layer 35 is filled between the storage drawer 14 and the drawer decorative panel 11. A sealing strip 13 is provided on the storage drawer 14.

[0041] The outer shell panel 6 serves as an intermediate component, connecting the outer shell cover 1, the outer protective shell 17, and the inner storage shell 5, facilitating assembly and disassembly. Meanwhile, the body foam layer 34, the door foam layer 35, and the sealing strip 13 reduce heat entering the refrigerator, improving its insulation performance.

[0042] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0043] Example 5:

[0044] This embodiment is a further extension of embodiment 4, as follows: Figure 4 As shown, a light 2 is installed on the inner storage shell 5, a reed switch 3 is installed on the shell trim panel 6, and a magnet 4 is installed on the storage drawer 14. The reed switch 3 and the magnet 4 cooperate with each other, and the reed switch 3 is connected to the central control component for signal connection.

[0045] When the storage drawer 14 is closed, the magnet 4 approaches the reed switch 3, and the reed switch 3 is connected by the magnetic field, sending a connection signal to the PCBA controller 32. The PCBA controller 32 then controls the light 2 to turn off. When the storage drawer 14 is opened, the magnet 4 moves away from the reed switch 3, and the reed switch 3 disconnects. After receiving the disconnect signal, the PCBA controller 32 turns on the light 2. If the storage drawer 14 is left open for an extended period of time, the PCBA controller 32 issues an alarm signal to remind the user that the storage drawer 14 has been left open.

[0046] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0047] Example 6:

[0048] This embodiment is a further extension of embodiment 4, as follows: Figure 4 As shown, a slide rail bracket 19 is installed on the inner storage shell 5, and a slide rail 12 is installed on the slide rail bracket 19. One side of the slide rail 12 is connected to the slide rail bracket 19, and the other side is connected to the storage drawer 14. A damping gear 8 is installed on the slide rail bracket 19, and a rack is installed on the storage drawer 14. The damping gear 8 and the rack are engaged.

[0049] By setting the slide rail 12, the storage drawer 14 can be pulled out more smoothly and with less effort; while the damping gear 8 provides damping for the opening and closing of the storage drawer 14, improving the operating feel.

[0050] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0051] Example 7:

[0052] This embodiment is a further extension of embodiment 6, as follows: Figure 4 As shown, a coil spring shaft 24 is installed on the slide rail bracket 19, and a coil spring 21 is installed on the coil spring shaft 24. A sliding plate 22 is slidably connected to the slide rail bracket 19, and a fixing plate 23 is fixedly connected to it. The fixing plate 23 is used to limit the sliding plate 22. The sliding plate 22 is connected to the other end of the coil spring 21.

[0053] When the refrigerator is opened, after the storage drawer 14 is unlocked, the sliding plate 22 slides on the slide rail bracket 19 due to the elastic force of the coil spring 21. The fixing plate 23 is used to limit the sliding plate 22 to prevent the storage drawer 14 from being pulled out excessively. That is, the coil spring 21 automatically opens the storage drawer 14. When the person is about to close the storage drawer 14, the coil spring 21 is stretched and the sliding plate 22 returns to its original position.

[0054] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0055] Example 8:

[0056] This embodiment is a further extension of embodiment 7 described above, specifically as follows: Figures 6-7 As shown, a latching assembly is installed on the housing trim 6 to limit the storage drawer 14 and prevent it from being opened accidentally. The latching assembly includes a latch shaft 7, a latch 9, an electromagnetic lock 10, and a torsion spring 20. The latch shaft 7 is installed on the housing trim 6, and the latch 9 and torsion spring 20 are installed on the latch shaft 7. The torsion spring 20 cooperates with the latch 9, and the latch 9 is used to latch the storage drawer 14. The electromagnetic lock 10 is installed on the outer protective shell 17, and the output end of the electromagnetic lock 10 is hinged to the latch 9.

[0057] When the storage drawer 14 needs to be opened, the electromagnetic lock 10 receives a signal from the central control component and pulls the latch 9, causing the latch 9 to rotate against the spring force of the torsion spring 20. At this time, the latch 9 no longer latches the storage drawer 14, and the storage drawer 14 automatically pops out under the action of the coil spring 21. When the storage drawer 14 needs to be locked, the electromagnetic lock 10 does not move. When the storage drawer 14 is closed by the staff, the storage drawer 14 presses against the inclined surface on the latch 9, forcing the latch 9 to overcome the spring force of the torsion spring 20 and move aside. After the storage drawer 14 passes the latch 9, the latch 9 latches the storage drawer 14 under the action of the spring force of the torsion spring 20, thus completing the limitation of the storage drawer 14.

[0058] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0059] Example 9:

[0060] This embodiment further expands upon embodiment 8 by modifying the electromagnetic lock 10, specifically as follows: Figure 5 As shown, the electromagnetic lock 10 includes a telescopic rod 101, a shock-absorbing rubber 102, a stop spring 103, a return spring 104, a coil 105, a shock-absorbing ring 106, and a protective shell. The telescopic rod 101 is slidably connected to the protective shell, the coil 105 is arranged around the outer edge of the telescopic rod 101, and the stop spring 103, the return spring 104, and the shock-absorbing ring 106 are arranged between the telescopic rod 101 and the protective shell.

[0061] When coil 105 is energized, it generates a magnetic field, which attracts telescopic rod 101 and pulls latch 9, thus unlocking the latch assembly. When coil 105 is de-energized, the magnetic field disappears, and latch 9 is reset by the force of torsion spring 20. At the same time, telescopic rod 101 is reset by the elastic force of return spring 104, thus locking the latch assembly. Shock absorber 106 provides buffering force to prevent telescopic rod 101 from impacting and making abnormal noise. Stop spring 103 provides a limit to restrict the travel of telescopic rod 101.

[0062] It solves the problems of existing electric unlocking mechanisms on the market, which have many parts, complex coordination, high noise, high cost, and some mechanisms require electric drive extension and electric drive closing, which are cumbersome and cannot quickly and efficiently achieve unlocking and closing.

[0063] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0064] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A vehicle-mounted semiconductor refrigerator, comprising a housing and a drawer box, the drawer box being slidably connected to the housing, the housing comprising an inner housing and an outer housing, the inner housing being sealed and mounted on the outer housing; a semiconductor refrigeration assembly and a central control assembly are mounted on the housing, characterized in that: The drawer box includes a storage drawer (14) and a drawer trim panel (11), the drawer trim panel (11) being snapped onto the storage drawer (14); the housing is provided with a lower air duct (16) and a rear air duct (30), the lower air duct (16) and the rear air duct (30) being connected, a semiconductor cooling component being installed at the connection between the lower air duct (16) and the rear air duct (30), an air outlet (38) is provided on the upper front side of the housing, which is connected to the rear air duct (30); a return air outlet (37) is provided on the lower rear side, which is connected to the lower air duct (16); An internal fan (18) is installed on the housing at the return air vent (37), and multiple air circulation holes (36) are provided on both sides of the storage drawer (14). When the internal fan (18) is started, the airflow is blown into the housing from the rear air duct (30) and the air outlet (38) to cool the items in the storage drawer (14) evenly. Then, the airflow flows through the air circulation hole (36), the return air vent (37), and the lower air duct (16) to the semiconductor cooling component for cooling. The cooled airflow continues to be blown into the housing through the rear air duct (30) to form a circulation.

2. The vehicle-mounted semiconductor refrigerator according to claim 1, characterized in that: The semiconductor cooling assembly includes a semiconductor cooling unit (28) installed on the rear air duct (30). The semiconductor cooling unit (28) is equipped with an outer fin (27) and an inner fin (29). The inner fin (29) is located in the rear air duct (30). An external fan bracket (26) is installed on the outer fin (27), and an external fan (25) is installed on the external fan bracket (26).

3. The vehicle-mounted semiconductor refrigerator according to claim 1, characterized in that: The central control component includes a PCBA lower bracket (33) mounted on the housing, and a PCBA upper cover plate (31) and a PCBA controller (32) are mounted on the PCBA lower bracket (33). The PCBA upper cover plate (31) is used to protect the PCBA controller (32).

4. The vehicle-mounted semiconductor refrigerator according to claim 1, characterized in that: The inner shell includes an inner storage shell (5), and the return air vent (37) and the air outlet (38) are located on the inner storage shell (5); the outer shell includes an outer protective shell (17), an outer cover (1), and a shell trim (6). The outer cover (1), the inner storage shell (5), and the outer protective shell (17) are connected by the shell trim (6). A box foam layer (34) is filled between the inner shell and the outer shell. A box door foam layer (35) is filled between the storage drawer (14) and the drawer trim (11). A sealing strip (13) is provided on the storage drawer (14).

5. A vehicle-mounted semiconductor refrigerator according to claim 4, characterized in that: A light (2) is installed on the inner storage shell (5), a reed switch (3) is installed on the shell trim panel (6), a magnet (4) is installed on the storage drawer (14), the reed switch (3) and the magnet (4) are in cooperation, and the reed switch (3) is connected to the central control component signal.

6. A vehicle-mounted semiconductor refrigerator according to claim 4, characterized in that: The inner storage shell (5) is equipped with a slide rail bracket (19), and a slide rail (12) is installed on the slide rail bracket (19). One side of the slide rail (12) is connected to the slide rail bracket (19), and the other side is connected to the storage drawer (14). A damping gear (8) is installed on the slide rail bracket (19), and a rack is installed on the storage drawer (14). The damping gear (8) and the rack are fitted together.

7. A vehicle-mounted semiconductor refrigerator according to claim 6, characterized in that: The slide rail bracket (19) is equipped with a coil spring shaft (24), and a coil spring (21) is installed on the coil spring shaft (24). The slide rail bracket (19) is slidably connected to a sliding plate (22) and fixedly connected to a fixing plate (23). The fixing plate (23) is used to limit the sliding plate (22). The sliding plate (22) is connected to the other end of the coil spring (21).

8. A vehicle-mounted semiconductor refrigerator according to claim 7, characterized in that: The shell trim panel (6) is equipped with a latch assembly for limiting the storage drawer (14) and preventing the storage drawer (14) from being opened accidentally. The latch assembly includes a latch shaft (7), a latch (9), an electromagnetic lock (10), and a torsion spring (20). The latch shaft (7) is installed on the shell trim panel (6). The latch shaft (7) is equipped with a latch (9) and a torsion spring (20). The torsion spring (20) cooperates with the latch (9). The latch (9) is used to latch the storage drawer (14). The electromagnetic lock (10) is installed on the outer protective shell (17). The output end of the electromagnetic lock (10) is hinged to the latch (9).

9. A vehicle-mounted semiconductor refrigerator according to claim 8, characterized in that: The electromagnetic lock (10) includes a telescopic rod (101), a shock-absorbing rubber (102), a stop spring (103), a return spring (104), a coil (105), a shock-absorbing ring (106), and a protective shell. The telescopic rod (101) is slidably connected to the protective shell. The coil (105) is arranged around the outer edge of the telescopic rod (101). The stop spring (103), the return spring (104), and the shock-absorbing ring (106) are arranged between the telescopic rod (101) and the protective shell.

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