PTC (Positive Temperature Coefficient) heating plate for vehicle thermal management

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) heating plate for vehicle thermal management, which relates to the technical field of vehicle heating equipment, and comprises a shell, ventilation holes are formed in two sides of the shell; a control box; the shell is detachably connected with the upper end of the shell; the heating plate bodies are arranged at the bottom of the control box at intervals; the heat-conducting fins are arranged at intervals in a stacked mode, the heating plate bodies vertically penetrate through the heat-conducting fins, and the heat-conducting fins can be vertically inserted into the shell; the two filtering assemblies can be transversely inserted into the shell. The rubber blocks can be inserted into the inserting grooves, so that impact force generated on the heating plate body in the running process of a vehicle is reduced, the heat conducting fins are arranged outside the whole heat conducting sleeve, heat can be conveniently and evenly transmitted to the heat conducting fins, the wavy heat conducting fins can increase the contact area with air, the heating effect is improved, and the service life of the heating plate is prolonged. And the filter screen can be cleaned and replaced by pulling out the fixing strip, so that the cleaning and replacing operation of the filter screen is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle heating equipment, in particular to a PTC heating plate for vehicle thermal management. Background Art

[0002] New energy vehicles, especially electric vehicles, have eliminated the fuel engine as a heat source, so the air conditioning system needs to be equipped with a corresponding electric heater to meet the heating needs. Generally, PTC heating plates are used for heating. PTC heating plates use PTC ceramic heating elements, which have the advantages of low thermal resistance and high heat exchange efficiency. They are automatic constant temperature and power-saving electric heaters.

[0003] At present, dust easily enters the inside of the PTC heating plate when it is in use. There is no protective device to protect the PTC heating plate. Dust easily adheres to the PTC heating plate, affecting the heat conduction of the PTC heating plate, reducing the heating efficiency, and causing an increase in power consumption. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art and proposes a PTC heating plate for vehicle thermal management, which has a protective effect and can prevent dust from entering.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A PTC heating plate for vehicle thermal management, comprising:

[0007] a housing having ventilation holes on two sides thereof;

[0008] A control box; which is detachably connected to the upper end of the housing;

[0009] A plurality of heating plate bodies, each of which is arranged at intervals at the bottom of the control box;

[0010] A plurality of heat-conducting sheets, each of which is stacked and spaced apart, and each heating plate body vertically penetrates each of the heat-conducting sheets, and each of the heat-conducting sheets can be vertically inserted into the housing;

[0011] Two filter components can be inserted into the housing laterally so that the two filter components cover the two ventilation holes respectively.

[0012] Furthermore, each heating plate body is electrically connected to the control box.

[0013] Furthermore, a heat-conducting sleeve is provided outside each heating plate body, and each heat-conducting sleeve vertically penetrates each heat-conducting sheet and is fixedly connected to the heat-conducting sheet.

[0014] Furthermore, each heat conducting sheet is wavy in shape.

[0015] Furthermore, an opening is provided at the top of the shell, and each heat conducting sheet can be inserted into the shell through the opening. Fixed plates are fixedly connected to both sides of the top of the shell, and the fixed plates are fixedly connected to the control box by screws.

[0016] Furthermore, a rubber block is provided at the lower end of each heating plate body, and a plurality of slots are provided on the inner wall of the bottom end of the shell, and each rubber block can be inserted into a slot.

[0017] Furthermore, each filter assembly includes a filter screen and a fixed frame, the filter screen is fixedly connected to the fixed frame, and two strip holes are opened on one side of the shell. Each fixed frame can be inserted into the shell through a strip hole so that the filter screen can be inserted between the ventilation hole and each heat conducting plate.

[0018] Furthermore, a fixing bar is fixedly connected to one side of each fixing frame, and the fixing bar is adapted to the bar-shaped hole of the shell so that the fixing bar can be embedded in the bar-shaped hole, and a rubber layer is provided on the outside of each fixing bar.

[0019] Furthermore, each fixing frame is attached to an inner wall of one side of the outer shell.

[0020] Furthermore, each filter assembly also includes a card strip, which is arranged on one side of the fixed frame. The inner wall of one side of the shell is provided with two card slots, and each card strip can be inserted into a card slot.

[0021] The beneficial effects of the utility model are:

[0022] When the PTC heating plate for vehicle thermal management in the utility model is assembled, the rubber block at the bottom of the heating plate body will be inserted into the slot, thereby fixing the bottom end of the heating plate body and reducing the impact force on the heating plate body during vehicle driving;

[0023] When in use, heat is transferred to each heat conducting sheet through the heat conducting sleeve. Since the heat conducting sheet is arranged on the entire outside of the heat conducting sleeve, it is convenient to transfer heat to each heat conducting sheet evenly. The wavy heat conducting sheet can increase the contact area with the air, thereby improving the heat exchange efficiency between the heat conducting sheet and the air and improving the heating effect.

[0024] After long-term use, the fixing strip can be pulled out from the strip hole on one side of the shell to drive the fixing frame to move out of the shell from the strip hole, and the filter can be cleaned and replaced. After cleaning and replacement, the fixing frame can be inserted into the shell through the strip hole again, making the cleaning and replacement of the filter simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the three-dimensional structure of a PTC heating plate for vehicle thermal management proposed by the utility model;

[0026] Figure 2This is a schematic diagram of the three-dimensional structure of a housing, a control box and a heat conducting sheet of a PTC heating plate for vehicle thermal management proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the three-dimensional structure of a housing and a filter assembly of a PTC heating plate for vehicle thermal management proposed by the utility model;

[0028] Figure 4 This is a schematic diagram of the cross-sectional structure of a heating plate body and a heat conducting sheet of a PTC heating plate for thermal management of a vehicle proposed in the utility model;

[0029] Figure 5 This is a top view of the structural cross-section of a heating plate body and a heat conducting sheet of a PTC heating plate for thermal management of a vehicle proposed by the utility model.

[0030] In the figure: 1 shell, 101 ventilation hole, 102 fixing plate, 103 card slot, 104 slot, 2 control box, 3 filter assembly, 301 filter screen, 302 fixing frame, 303 card strip, 4 fixing strip, 5 heating plate, 6 heat conducting sheet, 7 rubber block, 8 heat conducting sleeve. DETAILED DESCRIPTION

[0031] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] Reference Figure 1-5A PTC heating plate for vehicle thermal management is used for heating of vehicle thermal management. In order to protect the PTC heating plate and prevent dust from affecting the heating effect of the PTC heating plate.

[0036] The PTC heating plate for vehicle thermal management comprises a housing 1, a control box 2, a plurality of heating plate bodies 5, a plurality of heat conducting sheets 6 and two filter components 3;

[0037] The housing 1 is square in shape, and corresponding ventilation holes 101 are opened on the front and rear sides to facilitate the airflow of the vehicle air conditioner to pass through the ventilation holes 101 .

[0038] The heating plate bodies 5 are arranged at intervals at the bottom of the control box 2, and each heating plate body 5 is electrically connected to the control box 2, so that the control box 2 controls the heating of the heating plate bodies 5, and a heat-conducting sleeve 8 is provided on the outside of each heating plate body 5, and each wavy heat-conducting sheet 6 is stacked and arranged at intervals. Each heat-conducting sleeve 8 vertically penetrates each heat-conducting sheet 6 and is fixedly connected to each heat-conducting sheet 6, so that the heat of the heating plate body 5 is transferred to each heat-conducting sheet 6 through the heat-conducting sleeve 8, and the wavy heat-conducting sheet 6 can increase the contact area with the air, so that when the airflow of the vehicle air conditioner passes through the ventilation hole 101 and each heat-conducting sheet 6, the heating efficiency of the airflow is improved, thereby improving the heating effect of the device.

[0039] An opening is provided at the top of the shell 1. During assembly, the heating plate body 5 together with the heat conducting sheets 6 can be vertically inserted into the shell 1, and a rubber block 7 is fixedly connected to the lower end of each heating plate body 5. A slot 104 adapted to the rubber block 7 is provided on the inner wall of the bottom end of the shell 1. When the heating plate body 5 is vertically inserted into the shell 1, each rubber block 7 will be inserted into a slot 104, thereby fixing the bottom end of each heating plate body 5, thereby reducing the impact force on the heating plate body 5 during vehicle driving. Fixing plates 102 are provided on both sides of the top of the shell 1, and fixing holes are provided on the fixing plates 102. After the heating plate body 5 is vertically inserted into the shell 1, the shell 1 can be fixed to the bottom of the control box 2 through the fixing holes and screws, thereby completing the assembly of the shell 1 and the control box 2.

[0040] Each filter assembly 3 includes a filter screen 301, a fixing frame 302 and a clamping strip 303. The filter screen 301 is fixedly connected to the fixing frame 302. The clamping strip 303 is arranged on one side of the fixing frame 302. One side of the outer shell 1 is provided with two strip-shaped holes. Each fixing frame 302 can be inserted into the outer shell 1 through a strip-shaped hole so that the filter screen 301 is inserted between the ventilation hole 101 and each heat conducting sheet 6. In addition, a fixing strip 4 is fixedly connected to one side of each fixing frame 302. The fixing strip 4 is adapted to the strip-shaped hole of the outer shell 1. When the fixing frame 302 is inserted into the outer shell 1, the fixing strip 4 will be embedded in the strip-shaped hole. In addition, a rubber layer is arranged on the outside of each fixing strip 4 to improve the sealing performance between the fixing strip 4 and the strip-shaped hole to prevent the airflow inside the outer shell 1 from leaking out. When the fixing frame 302 is inserted into the outer shell 1, Each fixing frame 302 is attached to the inner wall of one side of the shell 1, so that the external airflow passes through the ventilation hole 101 and then enters the interior of the shell 1 through the filter 301. Two card slots 103 are provided on the inner wall of one side of the shell 1. When the fixing frame 302 is inserted into the shell 1, each card strip 303 can be inserted into a card slot 103, so as to fix one side of the fixing frame 302. In conjunction with the fixing strip 4, the fixing frame 302 is fixed inside the shell 1, so that the filter 301 can filter the airflow of the vehicle air conditioner and prevent dust from adhering to the heat conductive sheet 6. When the filter 301 needs to be cleaned and replaced, it only needs to be pulled out of the shell 1 through the fixing strip 4, and there is no need to disassemble the heating plate body 5. Therefore, it is convenient to clean, maintain and replace.

[0041] Working principle of the PTC heating plate for vehicle thermal management:

[0042] During assembly, the heating plate body 5 together with each heat conducting sheet 6 is vertically inserted into the housing 1 through the opening at the top of the housing 1, and each rubber block 7 is inserted into a slot 104, so as to fix the bottom end of each heating plate body 5, and reduce the impact force on the heating plate body 5 during the driving of the vehicle. Then, the housing 1 is fixed to the bottom of the control box 2 through the fixing holes and screws on the fixing plate 102, so as to complete the assembly of the housing 1 and the control box 2. Finally, the fixing frame 302 is inserted into the housing 1 through the strip hole, so that the filter 301 is inserted between the ventilation hole 101 and each heat conducting sheet 6. After the fixing frame 302 is inserted into the housing 1, the fixing strip 4 will be embedded in the strip hole, and the card strip 303 will be inserted into the card slot 103, so that the fixing frame 302 is fixed inside the housing 1, so that the filter 301 can filter the airflow of the vehicle air conditioner and prevent dust from adhering to the heat conducting sheet 6.

[0043] When in use, the control box 2 controls each heating plate body 5 to heat, and the heat is transferred to each heat conductive sheet 6 through the heat conductive sleeve 8. Since the heat conductive sheet 6 is arranged on the entire outside of the heat conductive sleeve 8, it is convenient to evenly transfer the heat to each heat conductive sheet 6. Then, the airflow passes through the ventilation holes 101 through the vehicle air conditioner. The air will first pass through the ventilation holes 101 and the filter 301 on one side to enter the inside of the shell 1. The filter 301 removes dust in the air, and then the clean air passes horizontally between each wavy heat conductive sheet 6. The wavy heat conductive sheet 6 can increase the contact area with the air, thereby improving the heat exchange efficiency between the heat conductive sheet 6 and the air, thereby improving the heating effect. Finally, the heated air is discharged through the ventilation holes 101 on the other side to heat the interior space of the vehicle.

[0044] When the filter 301 needs to be cleaned and replaced after being used for a long time, the fixing strip 4 is pulled out from the strip hole on one side of the shell 1, thereby driving the fixing frame 302 to move out of the shell 1 through the strip hole, and the filter 301 is moved out accordingly, and can be cleaned and replaced. After cleaning and replacement, the fixing frame 302 can be inserted into the shell 1 through the strip hole again.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A PTC heating plate for vehicle thermal management, characterized in that: include: The housing (1) has ventilation holes (101) on both sides thereof; A control box (2) is detachably connected to the upper end of the housing (1); A plurality of heating plate bodies (5), each of the heating plate bodies (5) being arranged at intervals at the bottom of the control box (2); A plurality of heat-conducting sheets (6), each of the heat-conducting sheets (6) is stacked and spaced apart, and each of the heating plate bodies (5) vertically penetrates each of the heat-conducting sheets (6), and each of the heat-conducting sheets (6) can be vertically inserted into the housing (1); Two filter assemblies (3) can be laterally inserted into the housing (1) so that the two filter assemblies (3) cover the two ventilation holes (101) respectively.

2. A PTC heating plate for vehicle thermal management according to claim 1, characterized in that: Each of the heating plate bodies (5) is electrically connected to the control box (2).

3. The PTC heating plate for vehicle thermal management according to claim 1, characterized in that: A heat-conducting sleeve (8) is provided outside each heating plate body (5); each heat-conducting sleeve (8) vertically penetrates each heat-conducting sheet (6) and is fixedly connected to the heat-conducting sheet (6).

4. The PTC heating plate for vehicle thermal management according to claim 1, characterized in that: Each of the heat conducting sheets (6) is wavy in shape.

5. The PTC heating plate for vehicle thermal management according to claim 1, characterized in that: The top of the housing (1) is provided with an opening, and each of the heat conducting plates (6) can be inserted into the housing (1) through the opening; fixing plates (102) are fixedly connected to both sides of the top of the housing (1); and the fixing plates (102) are fixedly connected to the control box (2) by screws.

6. The PTC heating plate for vehicle thermal management according to claim 1, characterized in that: A rubber block (7) is provided at the lower end of each heating plate body (5), and a plurality of slots (104) are provided on the inner wall of the bottom end of the housing (1), and each rubber block (7) can be inserted into one of the slots (104).

7. The PTC heating plate for vehicle thermal management according to claim 1, characterized in that: Each of the filter components (3) comprises a filter screen (301) and a fixing frame (302); the filter screen (301) is fixedly connected to the fixing frame (302); one side of the outer shell (1) is provided with two strip-shaped holes; each of the fixing frames (302) can be inserted into the outer shell (1) through one of the strip-shaped holes, so that the filter screen (301) is inserted between the ventilation hole (101) and each of the heat conducting plates (6).

8. The PTC heating plate for vehicle thermal management according to claim 7, characterized in that: A fixing strip (4) is fixedly connected to one side of each fixing frame (302), and the fixing strip (4) is adapted to the strip-shaped hole of the outer shell (1) so that the fixing strip (4) can be embedded in the strip-shaped hole, and a rubber layer is provided on the outside of each fixing strip (4).

9. The PTC heating plate for vehicle thermal management according to claim 7, characterized in that: Each of the fixing frames (302) is attached to an inner wall of one side of the outer shell (1).

10. The PTC heating plate for vehicle thermal management according to claim 7, characterized in that: Each of the filter components (3) further comprises a clamping strip (303), wherein the clamping strip (303) is arranged on one side of the fixing frame (302), and two clamping slots (103) are arranged on an inner wall of one side of the housing (1), and each of the clamping strips (303) can be inserted into one of the clamping slots (103).

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