Refrigerator car with double-temperature-zone temperature control device

Abstract

The utility model relates to the technical field of refrigerator cars. The refrigerator is arranged at the front end outside the compartment. And the first refrigerant guide pipe and the second refrigerant guide pipe are respectively communicated with the refrigerating machine. The forecabin evaporator is arranged on the first refrigerant guide pipe, located on the top wall of the inner side of the forecabin and communicated with the forecabin flow dividing pipe, so that a plurality of nozzles arranged at intervals on the forecabin flow dividing pipe can discharge cold air to the forecabin. The rear cabin evaporator is arranged on the second refrigerant guide pipe, located on the top wall of the inner side of the rear cabin and communicated with the rear cabin flow dividing pipe so that a plurality of nozzles arranged at intervals on the rear cabin flow dividing pipe can exhaust cold air to the rear cabin. A first expansion valve is disposed on the first refrigerant conduit. A second expansion valve is disposed on the second refrigerant conduit. The two temperature sensors are arranged in the front cabin and the rear cabin respectively. The central controller is used for being arranged in a cab of the refrigerator car and controlling opening and closing of the first expansion valve and the second expansion valve.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigerated vehicles, in particular to a refrigerated vehicle with a double-temperature zone temperature control device. Background Art

[0002] Cold chain logistics transportation mainly transports goods with strict temperature requirements such as fresh food, medical supplies, dairy products, etc. At present, large refrigerated trucks are equipped with two separate refrigeration systems to meet the different needs of freezing and refrigeration. The refrigeration function of refrigerated trucks is usually achieved by a refrigeration system and an insulated compartment. However, most of the existing refrigerated trucks only have refrigerated compartments or frozen compartments, and the cold air flow in the compartment is unevenly distributed, resulting in unsatisfactory freezing or refrigeration effects.

[0003] Therefore, how to provide a refrigerated vehicle with both refrigeration and freezing functions, with even distribution of cold air flow in the vehicle compartment and ideal freezing or refrigeration effect, is a technical problem that needs to be solved urgently. Utility Model Content

[0004] The utility model provides a refrigerated truck with a dual-temperature zone temperature control device, which solves the problem that the refrigerated truck cannot have both refrigeration and freezing functions, and the cold air flow in the compartment is unevenly arranged, resulting in unsatisfactory freezing or refrigeration effects.

[0005] The utility model provides a refrigerated vehicle with a dual-temperature zone temperature control device, comprising:

[0006] compartment and temperature control mechanism;

[0007] The interior of the carriage is divided into two temperature zones, a front cabin and a rear cabin, for storage;

[0008] The temperature control mechanism includes a refrigerator, a first refrigerant conduit, a first expansion valve, a front cabin evaporator, a front cabin shunt pipe, a second refrigerant conduit, a second expansion valve, a rear cabin evaporator, a rear cabin shunt pipe, a temperature sensor and a central controller;

[0009] The refrigerator is arranged at the front end of the outer side of the vehicle compartment;

[0010] The first refrigerant conduit and the second refrigerant conduit are respectively in communication with the refrigerator;

[0011] The front compartment evaporator is arranged on the first refrigerant conduit and is located on the inner top wall of the front compartment and is communicated with the front compartment shunt pipe so that a plurality of nozzles arranged at intervals on the front compartment shunt pipe can discharge cold air to the front compartment;

[0012] The rear cabin evaporator is arranged on the second refrigerant conduit and is located on the inner top wall of the rear cabin, and is connected to the rear cabin shunt pipe, so that the plurality of nozzles arranged at intervals on the rear cabin shunt pipe can discharge cold air to the rear cabin;

[0013] The first expansion valve is disposed on the first refrigerant conduit;

[0014] The second expansion valve is disposed on the second refrigerant conduit;

[0015] There are two temperature sensors, which are respectively arranged in the front cabin and the rear cabin, for measuring the temperature data in the front cabin and the rear cabin, and transmitting the temperature data to the central controller;

[0016] The central controller is used to be arranged in the driving room of the refrigerated truck to control the opening and closing of the first expansion valve and the second expansion valve.

[0017] In one practicable manner, it further includes a buffer mechanism and a chassis, wherein the buffer mechanism includes a fixing kit and at least two buffer kits arranged side by side along the width direction of the chassis;

[0018] The buffer mechanism is arranged between the bottom surface of the carriage and the top surface of the chassis;

[0019] The fixing kit includes a fixing plate, a first mounting block and a second mounting block;

[0020] The fixing plate is arranged on the top surface of the chassis;

[0021] There are two first mounting blocks, which are respectively arranged at two ends of the fixing plate;

[0022] The second mounting blocks are two in number, which are respectively arranged on the bottom surface of the carriage and correspond to the positions of the first mounting blocks;

[0023] The buffer kit includes a first slide bar, a second slide bar and a buffer member;

[0024] The two ends of the first slide bar are respectively arranged on opposite side walls between the two first mounting blocks;

[0025] The two ends of the second slide bar are respectively arranged on the opposite side walls between the two second mounting blocks;

[0026] The buffer member is arranged on the first sliding rod and the second sliding rod.

[0027] In one implementation, the buffer member includes a first slider, a second slider, a hinge, a first scissor arm, a second scissor arm and a damping spring;

[0028] The first sliding block consists of two pieces, which are respectively sleeved on the first sliding rod and can slide along the first sliding rod;

[0029] The second sliding block consists of two pieces, which are respectively sleeved on the second sliding rod and can slide along the second sliding rod;

[0030] There are four hinges, which are respectively arranged on the top surfaces of the two first sliding blocks and the bottom surfaces of the two second sliding blocks;

[0031] The first scissor arm and the second scissor arm are hinged to each other, the first scissor arm is connected to the first slider and the second slider through the hinge, and the second scissor arm is connected to the first slider and the second slider through the hinge;

[0032] There are four damping springs, two of which are respectively mounted on the first slide rod, and two ends of the damping springs are respectively arranged on the side surfaces of the first slider opposite to the first mounting block; the other two of the damping springs are respectively mounted on the second slide rod, and two ends of the damping springs are respectively arranged on the side surfaces of the second slider opposite to the second mounting block.

[0033] In one implementation, a front cabin door is provided on the side of the front cabin;

[0034] The front door member includes a side door, a first hinge and a side door locking member;

[0035] The side door is connected to the outer side of the front cabin through the first hinge;

[0036] The first hinge is a set, one end of the first hinge is arranged on the outer side of the front cabin, and the other end is arranged at a corresponding position on the outer side of the side door;

[0037] The side door locking member includes a side door locking male member and a side door locking female member, which can be interlocked;

[0038] The side door locking member is arranged on the outer side surface of the side door, away from one end of the first hinge;

[0039] The side door locking female component is arranged on the outer side surface of the side door, at a position corresponding to the side door locking male component.

[0040] In one implementation, a rear hatch door is provided on the side of the rear hatch;

[0041] The rear hatch door member includes a first rear door, a second rear door, a second hinge and a rear door locking member;

[0042] The first rear door and the second rear door are respectively connected to the inner side edges of both ends of the rear cabin through the second hinges;

[0043] The second hinges are divided into two groups, one end of the second hinges of one group is arranged at the inner side edge of the rear compartment, the other end of the second hinges of one group is arranged at the corresponding position of the inner side of the first rear door, and one end of the second hinges of another group is arranged at the inner side edge of the rear compartment, and the other end of the second hinges of another group is arranged at the corresponding position of the inner side of the first rear door;

[0044] The rear door locking member includes a rear door locking male member and a rear door locking female member, which can be interlocked;

[0045] The rear door locking member is arranged on the outer side of the first rear door, away from one end of the second hinge;

[0046] The rear door locking female component is arranged on the outer side surface of the second rear door, corresponding to the rear door locking male component.

[0047] In one practicable manner, the device further includes a storage device, wherein the storage device includes a storage rack, a storage basket, and a hanging rod;

[0048] The storage rack is arranged in the front cabin and the rear cabin;

[0049] There are multiple storage baskets placed on the storage rack;

[0050] The hanging rod is arranged on the inner walls of the front compartment and the rear compartment.

[0051] In one practicable manner, it further includes a heat-insulating partition, which is arranged on the inner wall of the compartment.

[0052] In one implementation, the vehicle further includes a vehicle head, wheels and a lift;

[0053] The front of the vehicle is arranged at the front end of the top of the chassis, the wheels are arranged at the bottom of the chassis, and the lift is arranged at the edge of the rear end of the top of the chassis.

[0054] The beneficial effects of the utility model are as follows: first, when the refrigerator is working, the refrigerant passes through the first refrigerant conduit and the first expansion valve, and releases cold air when passing through the front cabin evaporator. The cold air passes through the front cabin shunt pipe and is discharged from the nozzle into the front cabin. The refrigerant passes through the second refrigerant conduit and the second expansion valve, and releases cold air when passing through the rear cabin evaporator. The cold air passes through the rear cabin shunt pipe and is discharged from the nozzle into the rear cabin. The temperature sensors in the front cabin and the rear cabin transmit the temperature data to the central controller respectively. When the temperature of the front cabin or the rear cabin reaches the preset temperature, the central controller transmits a working signal to control the first expansion valve or the second expansion valve to close. When the temperature of the front cabin or the rear cabin is higher than the preset temperature, the central controller transmits a working signal to control the first expansion valve or the second expansion valve to open. Through the above steps, the refrigerated truck has both refrigeration and freezing functions, and the cold air flow in the car is evenly distributed, which improves the freezing or refrigeration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 This is a front view of a refrigerated truck with a dual-temperature zone temperature control device according to the utility model;

[0057] Figure 2 It is a three-dimensional diagram of the partial structure of a refrigerated truck with a dual-temperature zone temperature control device according to the utility model from the first perspective;

[0058] Figure 3 It is a stereoscopic diagram of the partial structure of a refrigerated truck with a dual-temperature zone temperature control device according to the utility model from a second viewing angle;

[0059] Figure 4 It is a three-dimensional diagram of a buffer mechanism of a refrigerated vehicle with a dual-temperature zone temperature control device according to the utility model;

[0060] Figure 5 This is a top view of a refrigerated truck compartment with a dual-temperature zone temperature control device according to the utility model;

[0061] Figure 6 The utility model is a cross-sectional view of the local structure of a refrigerated truck with a dual-temperature zone temperature control device.

[0062] Description of reference numerals:

[0063] 100, front of the vehicle; 101, chassis; 102, compartment; 103, wheels; 104, lift; 105, side door; 106, first hinge; 107, side door locking male part; 108, side door locking female part; 1091, first rear door; 1092, second rear door; 110, second hinge; 111, rear door locking male part; 112, rear door locking female part; 113, front cabin; 114, rear cabin;

[0064] 200, buffer kit; 201, fixing plate; 202, first mounting block; 203, second mounting block; 204, first slide bar; 205, second slide bar; 206, first slider; 207, second slider; 208, hinge; 209, first scissor arm; 210, second scissor arm; 211, damping spring;

[0065] 300, front cabin evaporator; 301, front cabin shunt pipe; 302, first fixing block; 303, nozzle; 304, rear cabin evaporator; 305, rear cabin shunt pipe; 306, second fixing block;

[0066] 400, storage device; 401, storage rack; 402, hanging rod; 403, storage basket. DETAILED DESCRIPTION

[0067] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0068] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0069] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0070] See also Figure 1 and Figure 6 The present application provides a refrigerated vehicle with a dual-temperature zone temperature control device, including a compartment 102 and a temperature control mechanism. The interior of the compartment 102 is divided into two temperature zones, a front compartment 113 and a rear compartment 114, one for a refrigerated temperature zone and the other for a frozen temperature zone.

[0071] It should be noted that the size of the two temperature zones and the choice of refrigeration or freezing can be adjusted as needed, and this application does not limit this.

[0072] The temperature control mechanism includes a refrigerator, a first refrigerant conduit, a first expansion valve, a front cabin evaporator 300, a front cabin shunt pipe 301, a second refrigerant conduit, a second expansion valve, a rear cabin evaporator 304, a rear cabin shunt pipe 305, a temperature sensor and a central controller. The refrigerator is arranged at the front end of the outer side of the vehicle compartment 102. The first refrigerant conduit and the second refrigerant conduit are respectively connected to the refrigerator. The front cabin evaporator 300 is arranged on the first refrigerant conduit and is located on the inner top wall of the front cabin 113, and is connected to the front cabin shunt pipe 301, so that the multiple nozzles 303 arranged at intervals on the front cabin shunt pipe 301 can discharge cold air to the front cabin 113. The rear cabin evaporator 304 is arranged on the second refrigerant conduit and is located on the inner top wall of the rear cabin 114, and is connected to the rear cabin shunt pipe 304, so that the multiple nozzles 303 arranged at intervals on the rear cabin shunt pipe 304 can discharge cold air to the rear cabin 114. The first expansion valve is arranged on the first refrigerant conduit. The second expansion valve is arranged on the second refrigerant conduit. There are two temperature sensors, which are arranged in the front cabin 113 and the rear cabin 114, respectively, for measuring the temperature data in the front cabin 113 and the rear cabin 114, and transmitting the temperature data to the central controller. The central controller is arranged in the driving room of the refrigerated truck to control the opening and closing of the first expansion valve and the second expansion valve.

[0073] Preferably, the front compartment shunt pipe 301 is fixedly mounted on the inner top wall of the front compartment 113 by means of screwing or bonding through the first fixing block 302. The front compartment evaporator 300 is fixedly mounted on the inner top wall of the front compartment 113 by means of screwing, the rear compartment shunt pipe 305 is fixedly mounted on the inner top wall of the rear compartment 114 by means of screwing or bonding through the second fixing block 306, and the rear compartment evaporator 304 is fixedly mounted on the inner top wall of the rear compartment 114 by means of screwing, and the plurality of nozzles 303 are spaced at the same distance, and the nozzles of the nozzles are oriented downward, so that the cold air discharged into the compartment 102 is more evenly distributed.

[0074] Specifically, when the refrigerator is working, the low-temperature and low-pressure refrigerant gas is sucked in and compressed to become a high-temperature and high-pressure refrigerant gas. The high-temperature and high-pressure refrigerant gas passes through the first refrigerant conduit and the first expansion valve, and is converted into a low-temperature and low-pressure refrigerant liquid. When passing through the front cabin evaporator 300, it evaporates and absorbs heat, releasing cold air. The cold air passes through the front cabin diverter pipe 301 and is discharged from the nozzle into the front cabin 113. Similarly, the high-temperature and high-pressure refrigerant gas passes through the second refrigerant conduit and the second expansion valve, and is converted into a low-temperature and low-pressure refrigerant liquid. When passing through the rear cabin evaporator 304, it evaporates and absorbs heat, releasing cold air. The cold air passes through the rear cabin diverter pipe 305 and is discharged from the nozzle into the rear cabin 114. The temperature sensors in the front cabin 113 and the rear cabin 114 transmit temperature data to the central controller respectively. When the temperature of the front cabin 113 or the rear cabin 114 reaches the preset temperature, the central controller transmits a working signal to control the first expansion valve or the second expansion valve to close. When the temperature of the front cabin 113 or the rear cabin 114 is higher than the preset temperature, the central controller transmits a working signal to control the first expansion valve or the second expansion valve to open.

[0075] That is, when the temperature in the front cabin 113 reaches the preset refrigeration temperature, the temperature sensor in the front cabin 113 transmits the temperature data in the front cabin 113 to the central controller, and the central controller transmits a working signal to control the closing of the first expansion valve. When the temperature in the rear cabin 114 reaches the preset freezing temperature, the temperature sensor in the rear cabin 114 transmits the temperature data in the rear cabin 114 to the central controller, and the central controller transmits a working signal to control the closing of the second expansion valve.

[0076] When the temperature in the front cabin 113 is higher than the preset refrigeration temperature, the temperature sensor in the front cabin 113 transmits the temperature data in the front cabin 113 to the central controller, and the central controller transmits a working signal to control the opening of the first expansion valve. When the temperature in the rear cabin 114 is higher than the preset freezing temperature, the temperature sensor in the rear cabin 114 transmits the temperature data in the rear cabin 114 to the central controller, and the central controller transmits a working signal to control the opening of the second expansion valve.

[0077] It should be noted that the first expansion valve and the second expansion valve are both solenoid valves, and the refrigerator, the first refrigerant conduit, the first expansion valve, the front cabin evaporator, the front cabin diverter pipe, the second refrigerant conduit, the second expansion valve, the rear cabin evaporator, the rear cabin diverter pipe, the temperature sensor and the central controller are conventional components, and this application does not improve them.

[0078] The present application adjusts the connection relationship between the refrigerator, the first refrigerant conduit, the first expansion valve, the front cabin evaporator, the front cabin shunt pipe, the second refrigerant conduit, the second expansion valve, the rear cabin evaporator, the rear cabin shunt pipe, the temperature sensor and the central controller.

[0079] like Figure 2 and Figure 3 As shown, in one embodiment, the refrigerated vehicle with a dual-temperature zone temperature control device also includes a buffer mechanism and a chassis, the buffer mechanism includes a fixing kit and at least two sets of buffer kits 200 arranged side by side along the width direction of the chassis, and the buffer mechanism is used to reduce the impact and vibration of the car body and the temperature control mechanism during the movement of the vehicle body. The fixing kit includes a fixing plate 201, a first mounting block 202, and a second mounting block 203. The fixing plate 201 is fixedly set on the top surface of the chassis 101. The first mounting block 202 is two pieces, which are fixedly set at both ends of the fixing plate 201. The second mounting block 203 is two pieces, which are fixedly set on the bottom surface of the car body 102 and at a position corresponding to the first mounting block 202. The buffer kit 200 is fixedly set between the bottom surface of the car body 102 and the top surface of the chassis 101. The buffer kit 200 includes a first slide bar 204, a second slide bar 205 and a buffer. The two ends of the first slide bar 204 are respectively fixedly set on the opposite side walls between the two first mounting blocks 202. The two ends of the second slide bar 204 are respectively fixedly arranged on the opposite side walls between the two second mounting blocks 203. The buffer is arranged on the first slide bar 204 and the second slide bar 205.

[0080] The carriage 102 is connected to the chassis 101 through a buffer kit 200. Without a buffer mechanism, the vehicle body encounters bumps during travel, which can easily damage the temperature control mechanism. By adding a buffer mechanism between the carriage 102 and the chassis 101, the temperature control mechanism is protected.

[0081] like Figure 4As shown, in one embodiment, the buffer member includes a first slider 206, a second slider 207, a hinge 208, a first scissor arm 209, a second scissor arm 210 and a damping spring 211. The first slider 206 is composed of two pieces, which are respectively mounted on the first slider 204 and can slide along the first slider 204. The second slider 207 is composed of two pieces, which are respectively mounted on the second slider 205 and can slide along the second slider 205. There are four hinges 208, which are respectively arranged on the top surfaces of the two first sliders 206 and the bottom surfaces of the two second sliders 207. The first scissor arm 209 and the second scissor arm 210 are hinged to each other, and the first scissor arm 209 is connected to the first slider 206 and the second slider 207 through the hinge 208, and the second scissor arm 210 is connected to the first slider 206 and the second slider 207 through the hinge 208. There are four damping springs 211, among which two damping springs 211 are respectively mounted on the first slide bar 204, and the two ends of each of the two damping springs 211 are respectively arranged on the side opposite to the first sliding block 206 and the first mounting block 202; the other two damping springs 211 are respectively mounted on the second slide bar 205, and the two ends of each of the other two damping springs 211 are respectively arranged on the side opposite to the second sliding block 207 and the second mounting block 203.

[0082] Specifically, when the vehicle body encounters bumps during movement, the relative positions of the car 102 and the chassis 101 change, the first slider 206 slides on the first slide bar 204, and the damping spring 211 mounted on the first slide bar 204 has a preliminary shock-absorbing effect, and the second slider 207 slides on the second slide bar 205, and the damping spring 211 mounted on the second slide bar 205 has a further shock-absorbing effect, thereby reducing the movement amplitude of the car 102, thereby protecting the temperature control mechanism.

[0083] In one embodiment, if Figure 1 As shown, a front door member is provided on the side of the front cabin 113, and the front door member includes a side door 105, a first hinge 106 and a side door locking member. The side door 105 is connected to the outer side of the front cabin 113 through the first hinge 106. The first hinge 106 is a group, one end of the first hinge 106 is fixedly arranged on the outer side of the front cabin 113, and the other end is fixedly arranged at a corresponding position on the outer side of the side door 105. The side door locking member includes a side door locking male member 107 and a side door locking female member 108, and the two can be interlocked. The side door locking male member 107 is arranged on the outer side of the side door 105, away from one end of the first hinge 106. The side door locking female member 108 is arranged on the outer side of the side door 105, corresponding to the side door locking male member 107.

[0084] The side door 105 can rotate around the first hinge 106 on the side of the front compartment 113, and the side door locking male part 107 and the side door locking female part 108 cooperate and interlock to complete the fixation of the side door 105 to the side of the front compartment 113 in the closed state.

[0085] It should be noted that the first hinges 106 form a group, and the specific number can be adjusted as needed. The present application does not limit the specific number of the first hinges 106.

[0086] In one embodiment, if Figure 2 As shown, a rear hatch door member is provided on the side of the rear cabin 114, and the rear hatch door member includes a first rear door 1091, a second rear door 1092, a second hinge 110 and a rear door locking member. The first rear door 1091 and the second rear door 1092 are connected to the inner side edge of the rear cabin 114 through the second hinge 110 respectively. The second hinge 110 is divided into two groups, one end of the second hinge 110 of one group is arranged on the inner side edge of the rear cabin 114, the other end of the second hinge 110 of one group is arranged at the corresponding position of the inner side of the first rear door 1091, one end of the second hinge 110 of another group is arranged on the inner side edge of the rear cabin 114, and the other end of the second hinge of another group is arranged at the corresponding position of the inner side of the second rear door 1092; the rear door locking member includes a rear door locking male member 111 and a rear door locking female member 112, which can be interlocked. The rear door locking male member 111 is arranged on the outer side of the rear door 109, away from one end of the second hinge 110. The rear door locking female component 112 is disposed on the outer side of the rear door 109 , corresponding to the rear door locking male component 111 .

[0087] Among them, the first rear door 1091 and the second rear door 1092 can rotate around the second hinge 110 on the side of the rear cabin 114, and the rear door locking male part 111 and the rear door locking female part 112 cooperate and interlock to complete the fixation of the first rear door 1091 and the second rear door 1092 in the closed state.

[0088] It should be noted that the second hinges 110 are divided into two groups, and the specific number can be adjusted as needed. The present application does not limit the specific number of the second hinges 110.

[0089] In one embodiment, if Figure 5As shown, the refrigerated truck with a dual-temperature zone temperature control device also includes a storage device 400, which includes a storage rack 401, a storage basket 403 and a hanging rod 402. The storage rack is fixedly arranged in the front compartment 113 and the rear compartment 114. There are multiple storage baskets 403, which are placed on the storage rack 401. The hanging rod is fixedly arranged on the inner top wall of the front compartment 113 and the rear compartment 114. Among them, the storage basket 403 is used to store items such as vegetables and fruits, which are placed on the storage rack 401 for refrigeration, and the hanging rod 402 is used to hang food such as meat.

[0090] In one embodiment, the refrigerated truck with a dual-temperature zone temperature control device further includes a heat-insulating partition, which is arranged on the inner wall of the compartment 102. The heat-insulating partition is made of a heat-insulating material to reduce the loss of cold air in the compartment 102. Exemplarily, the heat-insulating material is a polystyrene board.

[0091] In one embodiment, if Figure 1 As shown, the refrigerated truck with a dual-zone temperature control device also includes a front, wheels and a lift.

[0092] The front of the vehicle 100 is arranged at the front end of the top of the chassis 101, the wheels 103 are arranged at the bottom of the chassis 101, and the elevator 104 is arranged at the edge of the rear end of the top of the chassis 101. The elevator 104 can make it more convenient for the staff to take and put refrigerated or frozen items from the rear cabin 114.

[0093] In the above embodiments, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0094] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0095] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A refrigerated truck with a dual-zone temperature control device, characterized in that: include: compartment and temperature control mechanism; The interior of the carriage is divided into two temperature zones, a front cabin and a rear cabin, for storage; The temperature control mechanism includes a refrigerator, a first refrigerant conduit, a first expansion valve, a front cabin evaporator, a front cabin shunt pipe, a second refrigerant conduit, a second expansion valve, a rear cabin evaporator, a rear cabin shunt pipe, a temperature sensor and a central controller; The refrigerator is arranged at the front end of the outer side of the vehicle compartment; The first refrigerant conduit and the second refrigerant conduit are respectively in communication with the refrigerator; The front compartment evaporator is arranged on the first refrigerant conduit and is located on the inner top wall of the front compartment and is communicated with the front compartment shunt pipe so that a plurality of nozzles arranged at intervals on the front compartment shunt pipe can discharge cold air to the front compartment; The rear cabin evaporator is arranged on the second refrigerant conduit and is located on the inner top wall of the rear cabin, and is connected to the rear cabin shunt pipe, so that the plurality of nozzles arranged at intervals on the rear cabin shunt pipe can discharge cold air to the rear cabin; The first expansion valve is disposed on the first refrigerant conduit; The second expansion valve is disposed on the second refrigerant conduit; There are two temperature sensors, which are respectively arranged in the front cabin and the rear cabin, for measuring the temperature data in the front cabin and the rear cabin, and transmitting the temperature data to the central controller; The central controller is used to be arranged in the driving room of the refrigerated truck to control the opening and closing of the first expansion valve and the second expansion valve.

2. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 1, characterized in that: It also includes a buffer mechanism and a chassis, wherein the buffer mechanism includes a fixing kit and at least two buffer kits arranged side by side along the width direction of the chassis; The buffer mechanism is arranged between the bottom surface of the carriage and the top surface of the chassis; The fixing kit includes a fixing plate, a first mounting block and a second mounting block; The fixing plate is arranged on the top surface of the chassis; There are two first mounting blocks, which are respectively arranged at two ends of the fixing plate; The second mounting blocks are two in number, which are respectively arranged on the bottom surface of the carriage and correspond to the positions of the first mounting blocks; The buffer kit includes a first slide bar, a second slide bar and a buffer member; The two ends of the first slide bar are respectively arranged on opposite side walls between the two first mounting blocks; The two ends of the second slide bar are respectively arranged on the opposite side walls between the two second mounting blocks; The buffer member is arranged on the first sliding rod and the second sliding rod.

3. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 2, characterized in that: The buffer member comprises a first slider, a second slider, a hinge, a first scissor arm, a second scissor arm and a damping spring; The first sliding block consists of two pieces, which are respectively sleeved on the first sliding rod and can slide along the first sliding rod; The second sliding block consists of two pieces, which are respectively sleeved on the second sliding rod and can slide along the second sliding rod; There are four hinges, which are respectively arranged on the top surfaces of the two first sliding blocks and the bottom surfaces of the two second sliding blocks; The first scissor arm and the second scissor arm are hinged to each other, the first scissor arm is connected to the first slider and the second slider through the hinge, and the second scissor arm is connected to the first slider and the second slider through the hinge; There are four damping springs, two of which are respectively mounted on the first slide rod, and two ends of the damping springs are respectively arranged on the side surfaces of the first slider opposite to the first mounting block; the other two of the damping springs are respectively mounted on the second slide rod, and two ends of the damping springs are respectively arranged on the side surfaces of the second slider opposite to the second mounting block.

4. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 1, characterized in that: A front cabin door is provided on the side of the front cabin; The front door member includes a side door, a first hinge and a side door locking member; The side door is connected to the outer side of the front cabin through the first hinge; The first hinge is a set, one end of the first hinge is arranged on the outer side of the front cabin, and the other end is arranged at a corresponding position on the outer side of the side door; The side door locking member includes a side door locking male member and a side door locking female member, which can be interlocked; The side door locking member is arranged on the outer side surface of the side door, away from one end of the first hinge; The side door locking female component is arranged on the outer side surface of the side door, at a position corresponding to the side door locking male component.

5. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 1, characterized in that: A rear cabin door is provided on the side of the rear cabin; The rear hatch door member includes a first rear door, a second rear door, a second hinge and a rear door locking member; The first rear door and the second rear door are respectively connected to the inner side edges of both ends of the rear cabin through the second hinges; The second hinges are divided into two groups, one end of the second hinges of one group is arranged at the inner side edge of the rear compartment, the other end of the second hinges of one group is arranged at the corresponding position of the inner side of the first rear door, and one end of the second hinges of another group is arranged at the inner side edge of the rear compartment, and the other end of the second hinges of another group is arranged at the corresponding position of the inner side of the second rear door; The rear door locking member includes a rear door locking male member and a rear door locking female member, which can be interlocked; The rear door locking member is arranged on the outer side of the first rear door, away from one end of the second hinge; The rear door locking female component is arranged on the outer side surface of the second rear door, corresponding to the rear door locking male component.

6. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 1, characterized in that: Also included is a storage device, which includes a storage rack, a storage basket and a hanging rod; The storage rack is arranged in the front cabin and the rear cabin; There are multiple storage baskets placed on the storage rack; The hanging rod is arranged on the inner walls of the front compartment and the rear compartment.

7. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 1, characterized in that: It also includes a heat-insulating baffle, which is arranged on the inner wall of the carriage.

8. The refrigerated vehicle with a dual-temperature zone temperature control device according to claim 2, characterized in that: It also includes the front of the car, wheels and lift; The front of the vehicle is arranged at the front end of the top of the chassis, the wheels are arranged at the bottom of the chassis, and the lift is arranged at the edge of the rear end of the top of the chassis.

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