Vehicle-mounted refrigerator with three temperature zones
By designing a three-temperature-zone vehicle refrigerator, and utilizing different cooling chambers and control systems, it achieves freezing, refrigeration, and heating/insulation functions, solving the problem of the single function of existing vehicle refrigerators and meeting the diverse storage needs of outdoor activities.
Patent Information
- Application Number
- CN202520003733.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Existing vehicle refrigerators have limited functionality, primarily serving as refrigeration units, and cannot meet the diverse needs for refrigeration and insulation during outdoor activities.
A vehicle-mounted refrigerator with three temperature zones was designed, including a first cooling chamber, a second cooling chamber, and a variable temperature chamber. It achieves freezing, refrigeration, and heating and insulation functions through different combinations of refrigeration evaporators and solenoid valves, which are controlled by the main control board.
It fulfills the multi-functional needs of freezing, refrigeration, and heating and insulation, meets the diverse storage needs of outdoor activities, and improves the flexibility of vehicle refrigerator use.
Smart Images
Figure CN223678056U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of vehicle refrigerator, concretely to a vehicle refrigerator with three temperature zones. BACKGROUND
[0002] The vehicle refrigerator is a kind of vehicle-mounted appliance currently used in the process of automobile and outdoors, and the existing vehicle refrigerator generally only has a first refrigeration cavity or two relatively small first refrigeration cavities, and it is not convenient to classify and store, and all storage cavities can only refrigerate food, but if outdoor activities in winter, food also needs to be heated or kept warm, so the existing vehicle refrigerator only has refrigeration function, is relatively single, and cannot meet the demand. UTILITY MODEL CONTENTS
[0003] The utility model provides a vehicle refrigerator with three temperature zones, can solve the refrigeration function of too single of existing vehicle refrigerator, cannot satisfy the outdoor diversification demand.
[0004] To achieve the above object, the utility model provides the following technical scheme: a vehicle refrigerator with three temperature zones, including refrigerator body, first refrigeration cavity, second refrigeration cavity and temperature change cavity are provided in the refrigerator body and are side by side, the outside of first refrigeration cavity and second refrigeration cavity is coiled with refrigeration evaporator, wherein, first refrigeration cavity is installed with first refrigeration evaporator and second refrigeration evaporator, second refrigeration cavity is installed with third refrigeration evaporator and fourth refrigeration evaporator, first refrigeration evaporator and fourth refrigeration evaporator are connected in series, second refrigeration evaporator and third refrigeration evaporator are connected in series, first refrigeration evaporator and third refrigeration evaporator are connected in series with first capillary and second capillary, first capillary and second capillary are connected with two-position three-way electromagnetic valve, fourth refrigeration evaporator and second refrigeration evaporator are communicated with low-pressure end electromagnetic valve, heating element is installed on the outside of temperature change cavity, compressor assembly and condenser are connected in series between two-position three-way electromagnetic valve and low-pressure end electromagnetic valve, first refrigeration evaporator, second refrigeration evaporator, third refrigeration evaporator, fourth refrigeration evaporator, fifth refrigeration evaporator, heating element, two-position three-way electromagnetic valve and low-pressure end electromagnetic valve are electrically connected with main control board on the refrigerator body, first refrigeration cavity, second refrigeration cavity and temperature change cavity are installed with first temperature sensor, second temperature sensor and third temperature sensor respectively.
[0005] As preferred, the heating element is heating disc installed at the bottom of temperature change cavity or heating wire or heating patch coiled on the outside of temperature change cavity.
[0006] As preferred, the temperature change cavity includes metal side plate and bottom plate, and the metal side plate and bottom plate are sealingly connected.
[0007] As preferred, the top of the first refrigeration cavity, the second refrigeration cavity and the variable temperature cavity are all installed with a flip cover.
[0008] As preferred, a detachable storage basket is placed inside the first refrigeration cavity and / or the second refrigeration cavity, the storage basket is close to the inner side wall of the lower part of the first refrigeration cavity and / or the second refrigeration cavity, and the top of the storage basket is installed with an upper cover.
[0009] As preferred, reinforcing ribs are uniformly distributed on the upper cover.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] The three storage cavities are independently controlled, two of which can be used as conventional refrigeration storage cavities, and the other variable temperature cavity can be used as a heating and insulation cavity, thereby meeting different outdoor requirements and making the functions of the vehicle-mounted refrigerator more diversified. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a perspective view of the utility model;
[0013] Figure 2 It is a top view of the utility model;
[0014] Figure 3 It is a A-A sectional view of the utility model; Figure 2
[0015] Figure 4 It is a B-B sectional view of the utility model; Figure 2
[0016] It is a refrigeration principle diagram of the utility model; Figure 5
[0017] It is a circuit wiring diagram of the main control board of the utility model; Figure 6
[0018] It is a three-temperature zone control block diagram of the utility model; Figure 7
[0019] It is a circuit principle diagram of the power module of the utility model; Figure 8
[0020] It is a control circuit principle diagram of the display operation board of the utility model. Figure 9 DETAILED DESCRIPTION The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0022] like Figures 1-5 As shown, this utility model provides a refrigerator body 1. Inside the refrigerator body 1, a first refrigeration chamber 6, a second refrigeration chamber 5, and a variable temperature chamber 4 are arranged side-by-side. A refrigeration evaporator is coiled around the outer side of both the first refrigeration chamber 6 and the second refrigeration chamber 5. A first refrigeration evaporator 13 and a second refrigeration evaporator 14 are installed on the first refrigeration chamber 6. A third refrigeration evaporator 15 and a fourth refrigeration evaporator 12 are installed on the second refrigeration chamber 5. The first refrigeration evaporator 13 and the fourth refrigeration evaporator 12 are connected in series, and the second refrigeration evaporator 14 and the third refrigeration evaporator 15 are connected in series. The first refrigeration evaporator 13 and the third refrigeration evaporator 15 are respectively connected to a first capillary tube 18. The first capillary tube 18 and the second capillary tube 19 are connected in series. Both the first capillary tube 18 and the second capillary tube 19 are connected to the two-position three-way solenoid valve 17. The fourth refrigeration evaporator 12 and the second refrigeration evaporator 14 are connected to the low-pressure solenoid valve 20. A heating element is installed on the outside of the temperature-changing cavity 4. The compressor assembly 10 and the condenser 16 are connected in series between the two-position three-way solenoid valve 17 and the low-pressure solenoid valve 20. The first refrigeration evaporator 13, the second refrigeration evaporator 14, the third refrigeration evaporator 15, the fourth refrigeration evaporator 12, the fifth refrigeration evaporator, the heating element, the two-position three-way solenoid valve 17 and the low-pressure solenoid valve 20 are all electrically connected to the main control board 11 on the refrigerator body 1.
[0023] Specifically, the volume of the variable temperature chamber 4 is smaller than that of the first cooling chamber 6 and the second cooling chamber 5, so it can hold some smaller items. The first cooling chamber 6, the second cooling chamber 5 and the variable temperature chamber 4 can all be controlled independently by the main control board 11. The variable temperature chamber 4 can be used as a heating and heat preservation chamber to keep food warm or heat it when used outdoors in winter.
[0024] As the cooling control principle in this embodiment, such as Figure 5 As shown, the evaporator pipe lengths of the first refrigeration chamber 6 and the second refrigeration chamber 5 are already matched, and two sets of evaporators are pre-embedded in the two refrigeration chambers.
[0025] Both the first refrigeration chamber 6 and the second refrigeration chamber 5 can be converted into a freezer chamber or a refrigerator chamber, depending on the evaporator used. The refrigerator in this embodiment can be configured with Mode 1 and Mode 2, using two evaporator systems connected in parallel. The refrigerant flow direction is changed by switching the two-position three-way solenoid valve 17 and the low-pressure solenoid valve 20, thus switching between the two refrigeration systems. In Mode 1, the first refrigeration chamber 6 is the freezer and the second refrigeration chamber 5 is the refrigerator; in Mode 2, the first refrigeration chamber 6 is the refrigerator and the second refrigeration chamber 5 is the freezer.
[0026] Specifically:
[0027] Mode one: when the two-position three-way solenoid valve 17 switches to the flow path of the second capillary tube 19, and the low-pressure end solenoid valve 20 switches to the flow path of the second refrigeration evaporator 14, the refrigerant generated by the compressor assembly 10 and the condenser 16 flows through the second refrigeration evaporator 14, the third refrigeration evaporator 15 and the second capillary tube 19, so as to achieve the effect that the second refrigeration cavity 5 is refrigerated and the first refrigeration cavity 6 is frozen.
[0028] Mode two: when the two-position three-way solenoid valve 17 switches to the flow path of the first capillary tube 18, and the low-pressure end solenoid valve 20 switches to the flow path of the fourth refrigeration evaporator 12, the refrigerant generated by the compressor assembly 10 and the condenser 16 flows through the first refrigeration evaporator 13, the fourth refrigeration evaporator 12 and the first capillary tube 18, so as to achieve the effect that the first refrigeration cavity 6 is refrigerated and the second refrigeration cavity 5 is frozen.
[0029] The first temperature sensor, the second temperature sensor and the third temperature sensor are respectively installed in the first refrigeration cavity 6, the second refrigeration cavity 5 and the variable temperature cavity 4 in the embodiment, and are respectively used for detecting and controlling freezing, refrigeration and heating of the storage (mode one); refrigeration, freezing and heating of the storage (mode two)
[0030] The main control board 11 is provided with four light touch keys of +, -, set and power for controlling the actions of the three temperature storages, wherein the refrigeration storage temperature changes with the freezing storage, that is, the freezing is controllable and the refrigeration is uncontrollable.
[0031] In the starting state, the left box control is started or stopped by long pressing the "+" key and the set key for 3 seconds (mode one), and the right box control is started or stopped by long pressing the "-" key and the set key for 3 seconds (mode two), and the two temperature boxes cannot be set to be opened or closed at the same time. The default mode is mode one.
[0032] In mode one, the two-position three-way solenoid valve and the low-pressure end solenoid valve both receive positive pulse signals, that is, the second capillary tube 19 is connected, the first capillary tube 18 is not connected, the freezing chamber is started or stopped by the first temperature sensor, and the second temperature sensor of the refrigeration chamber can only display the actual temperature.
[0033] In mode two, the two-position three-way solenoid valve and the low-pressure end solenoid valve both receive negative pulse signals, that is, the first capillary tube 18 is connected, the second capillary tube 19 is not connected, the refrigeration chamber can only display the actual temperature by the first temperature sensor, and the freezing chamber is started or stopped by the second temperature sensor; the controllable cold temperature range is ±20℃.
[0034] The display panel has a bright dot in the lower right corner of the temperature display. If it is mode one, the left temperature display is lighted in the lower right corner of the dot, which represents that the left is the freezing chamber and the temperature is controllable. If it is mode two, the right temperature display is lighted in the lower right corner of the dot, which represents that the right is the freezing chamber and the temperature is controllable.
[0035] The power-on state long press "+" and "-" key and set key 3 seconds to start or close the heating control.
[0036] The controllable temperature range of the temperature-variable cavity 4 is 25-50℃, the actual temperature data is returned by the third temperature sensor, and the color of the heating icon on the display panel is red, indicating that the heating function is running.
[0037] As the heating mode of the temperature-variable cavity 4, the heating element is a heating disc installed at the bottom of the temperature-variable cavity 4 or a heating wire or a heating patch coiled outside the temperature-variable cavity 4, which can achieve the same heating and heat preservation effect.
[0038] In addition, as shown in the drawings, Figure 4 The temperature-variable cavity 4 includes a metal side plate 41 and a bottom plate 42, which are sealingly connected, and the heating disc can be installed on the bottom plate 42 for convenient assembly.
[0039] In order to realize heat preservation, the top of the first refrigeration cavity 6, the second refrigeration cavity 5 and the temperature-variable cavity 4 is provided with a flip cover 2, one end of the first refrigeration cavity 6, the second refrigeration cavity 5 and the temperature-variable cavity 4 is rotatably connected with the refrigerator body 1, and the other end is provided with an unlocking pull plate 3, which can unlock the flip cover 2.
[0040] In addition, as shown in the drawings, Figure 3 The first refrigeration cavity 6 and / or the second refrigeration cavity 5 is provided with a detachable storage basket 7, the storage basket 7 is tightly attached to the inner side wall of the lower part of the first refrigeration cavity 6 and / or the second refrigeration cavity 5, the top of the storage basket 7 is provided with an upper cover 8, the first refrigeration cavity 6 and / or the second refrigeration cavity 5 is divided into two layers by the upper cover 8, the inside of the storage basket 7 and the upper side of the upper cover 8 can prevent articles, and the upper cover 8 is uniformly provided with reinforcing ribs 9.
[0041] As shown in the drawings, Figure 6 As a specific structure of the main control board 11, the main control board 11 is provided with a low-pressure electromagnetic valve interface, a high-pressure electromagnetic valve interface, a heating patch interface, a left box temperature probe interface, a middle box temperature probe interface, a left box interior lamp interface and a middle box interior lamp interface, wherein the left box is the first refrigeration cavity 6 and the middle box is the second refrigeration cavity 5, and the main control board 11 is also connected with a display operation board and a control module in the compressor assembly 10.
[0042] As shown in the drawings, Figure 7 It is a three-temperature zone control block diagram, the main control board 11 is equivalent to a main control MCU, and the display board is equivalent to a display operation board, which is provided with a Bluetooth module, a display screen, a USB interface, a buzzer and the like.
[0043] As shown in the drawings, Figure 8 It is a circuit principle diagram of the power module on the main control board 11, Figure 9In order to show the control circuit schematic diagram of the operation board, the work of the three-temperature-zone vehicle-mounted refrigerator can be realized according to the above diagram.
[0044] It should be noted that all directional indications, such as upper, lower, left, right, front, rear, etc., are only used to explain the relative position relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.
[0045] In addition, the description such as "first", "second" and the like in the utility model is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0046] In the utility model, unless otherwise specifically defined and limited, the terms "connection", "fixing" and the like should be understood broadly, for example, "fixing" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium; can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0047] In addition, the technical solutions of each embodiment of the utility model can be combined with each other, but it must be based on that ordinary skilled in the art can realize, when the combination of technical solutions appears mutual contradiction or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the utility model.
Claims
1. A vehicle-mounted refrigerator having three temperature zones, characterized by comprising: The utility model relates to a refrigerator, which comprises a refrigerator body (1), a first refrigeration cavity (6), a second refrigeration cavity (5) and a temperature-variable cavity (4) arranged side by side in the refrigerator body (1), and a refrigeration evaporator coiled on the outer side of the first refrigeration cavity (6) and the second refrigeration cavity (5), wherein the first refrigeration cavity (6) is provided with a first refrigeration evaporator (13) and a second refrigeration evaporator (14), the second refrigeration cavity (5) is provided with a third refrigeration evaporator (15) and a fourth refrigeration evaporator (12), the first refrigeration evaporator (13) and the fourth refrigeration evaporator (12) are connected in series, the second refrigeration evaporator (14) and the third refrigeration evaporator (15) are connected in series, the first refrigeration evaporator (13) and the third refrigeration evaporator (15) are connected in series with a first capillary tube (18) and a second capillary tube (19) respectively, the first capillary tube (18) and the second capillary tube (19) are connected with a two-position three-way electromagnetic valve (17), the fourth refrigeration evaporator (12) and the second refrigeration evaporator (14) are connected with a low-pressure end electromagnetic valve (20), a heating element is arranged on the outer side of the temperature-variable cavity (4), a compressor assembly (10) and a condenser (16) are connected in series between the two-position three-way electromagnetic valve (17) and the low-pressure end electromagnetic valve (20), the first refrigeration evaporator (13), the second refrigeration evaporator (14), the third refrigeration evaporator (15), the fourth refrigeration evaporator (12), a fifth refrigeration evaporator, the heating element, the two-position three-way electromagnetic valve (17) and the low-pressure end electromagnetic valve (20) are electrically connected with a main control board (11) on the refrigerator body (1), and a first temperature sensor, a second temperature sensor and a third temperature sensor are arranged in the first refrigeration cavity (6), the second refrigeration cavity (5) and the temperature-variable cavity (4) respectively. The heating element is a heating disc arranged at the bottom of the temperature-variable cavity (4), or a heating wire or a heating patch coiled on the outer side of the temperature-variable cavity (4).
2. The vehicle-mounted refrigerator with three temperature zones according to claim 1, characterized in that: The temperature-variable cavity (4) comprises a metal side plate (41) and a bottom plate (42), and the metal side plate (41) and the bottom plate (42) are connected in a sealed manner.
3. The vehicle-mounted refrigerator with three temperature zones according to claim 2, characterized in that: The top of the refrigerator body (1) is provided with a flip cover (2).
4. The vehicle-mounted refrigerator with three temperature zones according to claim 1, characterized in that: The first refrigeration cavity (6) and / or the second refrigeration cavity (5) is provided with a detachable storage basket (7), the storage basket (7) is in close contact with the inner side wall of the lower part of the first refrigeration cavity (6) and / or the second refrigeration cavity (5), and the top of the storage basket (7) is provided with an upper cover (8).
5. The vehicle-mounted refrigerator with three temperature zones according to claim 1, characterized in that: The upper cover (8) is uniformly provided with reinforcing ribs (9).
6. The vehicle-mounted refrigerator with three temperature zones according to claim 5, characterized in that: