Vehicle-mounted refrigerator driving device
By using seals and transmission components within the housing in the vehicle refrigerator drive unit, the problem of condensate entering the housing under thermal shock conditions is solved, achieving both sealing performance and quiet operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional vehicle refrigerator drive motors are prone to short circuits caused by condensation entering the casing when exposed to thermal shock.
The first seal inside the housing and the second seal at the outlet port are used to prevent water mist and condensate from entering, respectively. Combined with the design of the transmission components, a sealing effect is achieved to avoid short circuits in the drive components.
It effectively prevents condensate from entering the housing, avoids short circuits in the drive components, improves sealing and structural compactness, reduces vibration and noise, and ensures the normal operation of the vehicle refrigerator.
Smart Images
Figure CN224053993U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of vehicle refrigerator, especially to vehicle refrigerator drive device. BACKGROUND
[0002] The vehicle refrigerator is a refrigerator that can be carried on a vehicle. The drive mechanism of the vehicle refrigerator is a driving source for driving the compressor or fan and other components inside the vehicle refrigerator, and plays a crucial role in the vehicle refrigerator to ensure that the refrigerator can operate normally and run.
[0003] The drive mechanism of the vehicle refrigerator is composed of a motor, a wire and a transmission system, and realizes efficient, silent and intelligent operation. However, the traditional drive motor is prone to condensation in a cold and hot impact environment, which leads to short circuit and even damage of the motor when the condensation enters the inside of the motor housing.
[0004] Therefore, there is an urgent need for a vehicle refrigerator drive device to solve the above problems. INVENTION CONTENTS
[0005] The utility model discloses a vehicle refrigerator drive device, can block the entry of water mist, avoid the condensation of drive device in the cold and hot impact environment and enter the inside of the shell and lead to the short circuit of drive part, and the sealing effect is good and the structure is compact.
[0006] In order to solve the above problems existing in the prior art, the utility model adopts the following technical scheme:
[0007] The vehicle refrigerator drive device comprises:
[0008] A housing is provided with an outlet port for wire arrangement.
[0009] A drive part is arranged in the housing and electrically connected with the plug through the wire.
[0010] A transmission assembly is arranged in the housing and transmissionally connected with the drive part.
[0011] A first sealing part is arranged in the housing along the outer peripheral direction of the housing and used for blocking the entry of water mist.
[0012] A second sealing part is arranged in the outlet port and has a wire hole and a relief gap. The wire hole is used for wire arrangement, and the relief gap is used for avoiding the first sealing part.
[0013] Preferably, the sidewall of the second sealing part is provided with an anti-skid rib, which can be fitted with the inner sidewall of the outlet port.
[0014] Preferably, the anti-skid rib comprises a plurality of protrusions, and the plurality of protrusions are arranged at intervals.
[0015] Preferably, the second sealing member is provided with an elastic cutout in a 'I' shape structure, and the elastic cutout is used for guiding the wire to enter the wire hole.
[0016] Preferably, the shell comprises an upper shell and a lower shell, the upper shell is mounted on the lower shell, the upper shell is provided with a mounting groove, and the first sealing member is mounted in the mounting groove and can abut against the lower shell.
[0017] Preferably, the transmission assembly comprises a worm, a double gear, an output gear and an output shaft, the worm is sleeved on the output end of the driving member, the double gear and the output shaft are rotationally arranged in the shell, the output gear is sleeved on the output shaft, and the worm and the output gear are in meshing connection with the double gear.
[0018] Preferably, the shell is provided with a limiting member, the limiting member partially surrounds the outer periphery of the output gear in the circumferential direction of the output gear, the limiting member is provided with a sealing groove, and the first sealing member is mounted in the sealing groove.
[0019] Preferably, the worm is made of steel material, and the double gear is made of plastic material.
[0020] Preferably, the number of wire holes is a plurality, and the plurality of wire holes are arranged side by side.
[0021] Preferably, the first sealing member and the second sealing member are both made of rubber material.
[0022] The utility model discloses a beneficial effect is:
[0023] The utility model provides a vehicle refrigerator drive arrangement, the shell is provided with the outgoing line port, and the outgoing line port is used for wire arrangement, and the driving member is arranged in the shell and is electrically connected with the plug through the wire, and the transmission assembly is arranged in the shell, and the transmission assembly is in transmission connection with the driving member. Along the circumferential direction of the shell, the first sealing member is installed in the upper and lower butt joint position of the driving member and the transmission member in the shell interior, is used for blocking the water mist to enter, and the second sealing member is arranged in the outgoing line port, and the second sealing member has the wire hole and the avoidance gap, and the wire hole is used for wire arrangement, and the second sealing member is blocked in the outgoing line port and is crimped on the first sealing member through the avoidance gap, and the structure is compact, and the sealing effect does not influence each other. The first sealing member and the second sealing member can all play the sealing effect to the interior of the shell, can block the water mist to enter, and avoid that the condensed water in the cold and hot impact environment enters the shell interior and causes the short circuit of the driving member. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 A structure schematic view of a vehicle-mounted refrigerator driving device provided by the embodiment of the present utility model;
[0025] Figure 2 A first structure schematic view inside the vehicle-mounted refrigerator driving device provided by the embodiment of the present utility model;
[0026] Figure 3 A second structure schematic view inside the vehicle-mounted refrigerator driving device provided by the embodiment of the present utility model;
[0027] Figure 4 A third structure schematic view inside the vehicle-mounted refrigerator driving device provided by the embodiment of the present utility model. Figure 3
[0028] Figure 5 A third structure schematic view inside the vehicle-mounted refrigerator driving device provided by the embodiment of the present utility model.
[0029] Reference signs:
[0030] 1, shell; 11, upper shell; 12, lower shell; 13, limiting piece;
[0031] 2, outgoing line port;
[0032] 3, driving piece;
[0033] 4, wire arrangement;
[0034] 5, plug;
[0035] 6, transmission assembly; 61, worm; 62, double gear; 63, output gear; 64, output shaft;
[0036] 7, first sealing piece;
[0037] 8, second sealing piece; 81, threading hole; 82, avoiding notch; 83, anti-skid rib; 84, elastic cutout. DETAILED DESCRIPTION
[0038] The present utility model will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, and not to limit the present utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present utility model are shown in the drawings, not all the structures.
[0039] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two elements of the interaction relationship.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0040] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0041] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.
[0042] As Figures 1-5 As shown in the utility model, the vehicle-mounted refrigerator driving device includes a shell 1, a driving piece 3, a transmission assembly 6, a first sealing piece 7 and a second sealing piece 8.In which, the shell 1 is provided with an outlet port 2, the outlet port 2 is used for wire 4 to pass through, the driving piece 3 is arranged in the shell 1 and is electrically connected with the plug 5 through the wire 4, the transmission assembly 6 is arranged in the shell 1, and the transmission assembly 6 is in transmission connection with the driving piece 3.Along the outer circumferential direction of the shell 1, the first sealing piece 7 is arranged in the shell 1 and is used for blocking water mist, the second sealing piece 8 is arranged in the outlet port 2, the second sealing piece 8 has a wire hole 81 and a avoiding gap 82, the wire hole 81 is used for wire 4 to pass through, and the avoiding gap 82 is used for avoiding the first sealing piece 7.
[0043] Specifically, the driving member 3 is a high-performance motor, the driving member 3 is arranged in the shell 1, the plug 5 is located outside the shell 1, the wire harness 4 is arranged in the wire outlet port 2 of the shell 1, and the two ends of the wire harness 4 are electrically connected with the driving member 3 and the plug 5 respectively to provide power for the driving member 3. The output end of the driving member 3 is in transmission connection with the transmission assembly 6, the driving member 3 drives the transmission assembly 6 to rotate, and relevant mechanical transmission of the vehicle-mounted refrigerator is realized. The first sealing member 7 is made of rubber material, the first sealing member 7 is arranged as a sealing ring, the second sealing member 8 is arranged as a sealing rubber plug, and the outer shape is a cuboid structure. The first sealing member 7 is arranged around the upper and lower abutting positions of the driving member 3 and the transmission member arranged in the shell 1, the second sealing member 8 is arranged in the wire outlet port 2 and is pressed on the first sealing member 7 through the avoiding gap 82, the structure is compact, and the sealing effects of the first sealing member 7 and the second sealing member 8 do not affect each other. One end of the wire harness 4 is electrically connected with the driving member 3, the other end is arranged in the wire hole 81 of the second sealing member 8 and is electrically connected with the plug 5, and the first sealing member 7 and the second sealing member 8 can seal the inside of the shell 1, so that the entry of water mist is blocked, and condensed water in the cold and hot impact environment is prevented from entering the inside of the shell 1 to cause short circuit of the driving member 3. Preferably, the transmission angle displacement of the output shaft 64 of the driving member 3 can be accurately controlled through the Hall number output of the driving member 3, the driving member 3 relies on the characteristics of the smooth operation speed of the sine wave magnetization motor, reduces the vibration noise transmitted between the driving member 3 and the shell 1, avoids resonance between the driving device and the vehicle-mounted refrigerator, and achieves the effect of opening and closing silence of the vehicle-mounted refrigerator.
[0044] Further, with reference to Figures 1-5 , the second sealing member 8 is provided with an elastic notch 84, the elastic notch 84 is in a “one” shape structure, and the elastic notch 84 is used for guiding the wire harness 4 into the wire hole 81. The second sealing member 8 is made of rubber material, since the two ends of the wire harness 4 are connected with the plug 5 and the driving member 3 respectively, the wire harness 4 cannot be directly arranged in the wire hole 81, therefore, the two sides of the second sealing member 8 are pinched and opened outward, so that the elastic notch 84 is opened, the wire harness 4 is inserted into the wire hole 81 of the second sealing member 8 through the one-shaped elastic notch 84, the second sealing member 8 seals and surrounds the wire harness 4 and is arranged in the wire outlet port 2, the second sealing member 8 can well play a sealing effect and can provide installation of the wire harness 4. When the second sealing member 8 needs to be replaced, the elastic notch 84 is opened again, the wire harness 4 is removed from the wire hole 81 through the one-shaped elastic notch 84, and the replacement is quickly completed. Preferably, the number of the wire holes 81 is multiple, and the multiple wire holes 81 are arranged side by side to adapt to the number of the connecting lines of the wire harness 4.
[0045] Further, with reference to Figures 1-5The side wall of the second sealing member 8 is provided with anti-skid ribs 83 which can be in close contact with the inner side wall of the outlet port 2. The anti-skid ribs 83 include a plurality of protruding portions which are arranged at intervals and extend in a direction perpendicular to the length direction of the wire 4. After the wire 4 is installed into the wire hole 81 of the second sealing member 8, the two sides of the second sealing member 8 are pressed, and the second sealing member 8 can be quickly inserted into the outlet port 2 under the elastic force of the second sealing member 8. The plurality of protruding portions of the anti-skid ribs 83 are tightly pressed against the inner side wall of the outlet port 2, the connection is stable, and the second sealing member 8 is not easy to be detached. The plurality of protruding portions are arranged at intervals, which can prevent the second sealing member 8 from being tightly pressed against the inner side wall of the outlet port 2 and being stuck during the process of detaching the second sealing member 8, so that the second sealing member 8 can be easily detached when it is pressed again, and the assembly and disassembly are convenient.
[0046] Further, with reference to Figures 1-5 The shell 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 is installed on the lower shell 12, the upper shell 11 is provided with a mounting groove, and the first sealing member 7 is installed in the mounting groove and can be tightly pressed against the lower shell 12. Specifically, the first sealing member 7 is clamped at the joint between the upper shell 11 and the lower shell 12, which has a sealing effect and can prevent water mist from entering, thereby preventing condensed water from entering the inside of the shell 1 when the driving device is in a cold and hot impact environment, which can cause the driving member 3 to short circuit. Alternatively, the lower shell 12 is provided with a mounting groove, and the first sealing member 7 is installed in the mounting groove of the lower shell 12 and can be tightly pressed against the upper shell 11, which has the same sealing effect.
[0047] Further, with reference to Figures 1-5 The transmission assembly 6 includes a worm 61, a double gear 62, an output gear 63 and an output shaft 64. The worm 61 is sleeved on the output end of the driving member 3, the double gear 62 and the output shaft 64 are rotatably arranged in the shell 1, the output gear 63 is sleeved on the output shaft 64, and the worm 61 and the output gear 63 are in meshing connection with the double gear 62. Specifically, the worm 61 is made of steel material, and the double gear 62 is made of plastic material, which can reduce the noise during gear transmission. The tooth thickness of the worm 61 is thinned, and the helical gear tooth thickness of the double gear 62 is compensated at the same time, so that high-strength transmission of small modulus gear under limited boundary conditions is realized. When the driving member 3 is started, the worm 61 is driven to rotate synchronously by the output shaft 64, the worm 61 drives the double gear 62 to rotate, and then drives the output gear 63 to rotate, and the output gear 63 drives the output shaft 64 to rotate, so as to realize mechanical transmission of the vehicle-mounted refrigerator.
[0048] Further, with reference to Figures 1-5The housing 1 is provided with a limiting piece 13, which is partially surrounded by the outer periphery of the output gear 63 along the circumferential direction of the output gear 63, and the limiting piece 13 is provided with a sealing groove, and the first sealing piece 7 is installed in the sealing groove. Specifically, the limiting piece 13 is provided as a special-shaped baffle, which is surrounded along the gear position of the transmission assembly 6 according to the arrangement of the transmission assembly 6, and the two ends of the limiting piece 13 are connected to the two side walls of the housing 1, respectively, and the sealing groove of the limiting piece 13 is in communication with the mounting groove. The first sealing piece 7 is installed in the mounting groove and the sealing groove and clamped between the upper shell 11 and the lower shell 12, which has a sealing effect and can block the entry of water mist, so as to avoid the condensed water in the cold and hot impact environment from entering the inside of the housing 1 to cause the short circuit of the driving piece 3.
[0049] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For those skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A drive device for a vehicle-mounted refrigerator, characterized by comprising: The utility model relates to a waterproof cable outlet, including: A shell (1) is equipped with a wire outlet port (2), and the wire outlet port (2) is used for the wire (4) to pass through; Drive piece (3) is arranged in the shell (1) and is electrically connected with plug (5) through wire (4); Transmission assembly (6) is arranged in the shell (1), and transmission assembly (6) is drivingly connected with drive piece (3); First sealing element (7) is arranged in the shell (1) along the circumferential direction of the shell (1) and is used to prevent water mist from entering; Second sealing element (8) is arranged in the wire outlet port (2), and the second sealing element (8) has a threading hole (81) and an avoiding notch (82), the threading hole (81) is used for the wire (4) to pass through, and the avoiding notch (82) is used to avoid the first sealing element (7).
2. The in-vehicle refrigerator driving device according to claim 1, characterized by The sidewall of the second sealing element (8) is provided with an anti-skid rib (83) which can be fitted with the inner sidewall of the wire outlet port (2).
3. The in-vehicle refrigerator driving device according to claim 2, characterized by The anti-skid rib (83) includes a plurality of protrusions, and the plurality of protrusions are arranged at intervals.
4. The in-vehicle refrigerator driving device according to claim 1, characterized by The second sealing element (8) is provided with an elastic notch (84), the elastic notch (84) is in the shape of a "one" character structure, and the elastic notch (84) is used for guiding the wire (4) into the threading hole (81).
5. The in-vehicle refrigerator driving device according to claim 1, characterized by The shell (1) includes an upper shell (11) and a lower shell (12), the upper shell (11) is mounted on the lower shell (12), the upper shell (11) is provided with a mounting groove, and the first sealing element (7) is mounted in the mounting groove and can abut against the lower shell (12).
6. The in-vehicle refrigerator driving device according to claim 1, characterized by The transmission assembly (6) includes a worm (61), a double gear (62), an output gear (63) and an output shaft (64), the worm (61) is sleeved on the output end of the drive piece (3), the double gear (62) and the output shaft (64) are rotatably arranged in the shell (1), the output gear (63) is sleeved on the output shaft (64), and the worm (61) and the output gear (63) are in meshing connection with the double gear (62).
7. The in-vehicle refrigerator driving device according to claim 6, characterized by The shell (1) is provided with a limiting piece (13), and the limiting piece (13) is partially surrounded by the outer periphery of the output gear (63) along the circumferential direction of the output gear (63), and the limiting piece (13) is provided with a sealing groove, and the first sealing element (7) is mounted in the sealing groove.
8. The in-vehicle refrigerator driving device according to claim 6, characterized by The worm (61) is made of steel material, and the double gear (62) is made of plastic material.
9. The in-vehicle refrigerator driving device according to claim 1, characterized by The number of threading holes (81) is multiple, and the multiple threading holes (81) are arranged side by side.
10. The in-vehicle refrigerator driving device according to claim 1, characterized by The first sealing element (7) and the second sealing element (8) are both made of rubber material.