Tightness adjusting structure of new energy vehicle-mounted refrigerator transmission system

Abstract

The utility model relates to a new energy vehicle-mounted refrigerator transmission system tightness adjusting structure which comprises an adjusting assembly arranged on an inner cavity of a machine shell, and the adjusting assembly comprises a driven wheel in transmission connection with a driving wheel through a transmission belt. The adjusting assembly is arranged on an inner cavity of the machine shell and has an installation locking state and an adjusting movable state. When the adjusting assembly is in an installation locking state, the driven wheel is fixed on the inner cavity of the shell along with the adjusting assembly; the adjusting assembly is in an adjusting movable state, the front-back distance between the driving wheel and the driven wheel is adjusted by changing the front-back position of the adjusting assembly on the inner cavity of the machine shell, then the tightness degree of the transmission belt is adjusted, an adjusting structure for adjusting the tightness degree of the transmission belt through a tensioning hole is omitted, the internal installation space of the refrigerator is saved, and the transmission belt tightness degree adjusting structure is simplified. The production cost is reduced.

Description

Technical Field

[0001] The utility model relates to a transmission system of a new energy vehicle-mounted refrigerator, in particular to a tightness adjustment structure of a transmission system of a new energy vehicle-mounted refrigerator. Background Art

[0002] Existing vehicle-mounted refrigerators have a fully automatic door opening and closing structure that uses a lead screw and a nut, as well as a meshing transmission method such as a gear and a rack. Since the meshing transmission methods of the lead screw and the nut, as well as the gear and the rack, require lubricating oil to reduce mechanical wear and improve the smoothness of mechanical transmission, but the viscosity of the lubricating oil is high in a low-temperature environment, which results in hindering the transmission between the lead screw and the nut, as well as the transmission between the gear and the rack. In this way, the mechanical friction increases instead, which is not conducive to the transmission of the transmission system. For example, Chinese Patent No. ZL202322413058.6 discloses a pulling structure for a vehicle-mounted refrigerator and a vehicle-mounted refrigerator, the driving member includes a motor, the output end of the motor is connected with a lead screw, a threaded hole is arranged in the moving block, the moving block is in threaded connection with the lead screw, and the moving block is connected with the refrigerator drawer.

[0003] Therefore, in order to avoid using lubricating oil, a transmission belt method is adopted. However, when adjusting the tension of the transmission belt, a tension pulley often needs to be set, which increases the installation space inside the refrigerator and also increases the production cost. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tightness adjustment structure of a transmission system of a new energy vehicle-mounted refrigerator. By adopting a transmission belt structure, lubricating oil is not required, the durability of the refrigerator transmission system is high, and by changing the front and rear positions of the adjustment assembly on the inner cavity of the casing, the front and rear distance between the driving wheel and the driven wheel is adjusted, thereby adjusting the tightness of the transmission belt. The setting of the tensioning hole is cancelled, the installation space inside the refrigerator is saved, the tightness adjustment structure of the transmission belt is simplified, and the production cost is reduced.

[0005] The purpose of the utility model is realized as follows:

[0006] A tightness adjustment structure of a transmission system of a new energy vehicle-mounted refrigerator includes an adjustment assembly arranged on the inner cavity of the casing. The adjustment assembly includes a driven wheel that is drivingly connected to a driving wheel through a transmission belt. The adjustment assembly is on the inner cavity of the casing and has an installation locking state and an adjustment active state;

[0007] When the adjustment assembly is in the installation locking state, the driven wheel is fixed on the inner cavity of the casing along with the adjustment assembly;

[0008] The adjustment assembly is in an adjustment active state. By changing the front - rear position of the adjustment assembly on the inner cavity of the casing, the front - rear spacing between the driving wheel and the driven wheel is adjusted, thereby adjusting the tightness of the transmission belt. The adjustment structure for adjusting the tightness of the transmission belt through the tensioning hole is cancelled, saving the internal installation space of the refrigerator, simplifying the transmission belt tightness adjustment structure, and reducing the production cost.

[0009] An adjusting member for switching between the installation locking state and the adjustment active state of the adjustment assembly is provided between the inner cavity of the casing and the adjustment assembly. The inner cavity of the casing and the adjustment assembly are connected through the adjusting member.

[0010] By one adjusting member, the front - rear spacing between the driving wheel and the driven wheel can be adjusted, with simple processing technology and convenient adjustment.

[0011] The adjustment assembly further includes a supporting member supported on the inner cavity of the casing. The driven wheel is rotatably suspended at the top of the supporting member to ensure that the bottom of the driven wheel and the transmission belt do not interfere with the supporting member.

[0012] When the adjustment assembly is in the installation locking state, the supporting member is fixed on the inner cavity of the casing;

[0013] When the adjustment assembly is in the adjustment active state, the supporting member moves back and forth on the inner cavity of the casing to adjust the front - rear spacing between the driving wheel and the driven wheel.

[0014] A connecting portion for cooperating with the adjusting member is provided between the inner cavity of the casing and the supporting member;

[0015] When the supporting member moves back and forth on the inner cavity of the casing, the adjusting member is relatively limited in forward - backward movement on the connecting portion; or, the adjusting member rotates in place on the connecting portion.

[0016] The connecting portion includes a long strip - shaped hole provided on the supporting member and forming a linear limit movement fit with the adjusting member. The length L1 of the long strip - shaped hole is greater than the shaft diameter D1 of the adjusting member, and the adjustment stroke is relatively large compared to the adjustment stroke of the eccentric adjusting member;

[0017] When the adjustment assembly is in the adjustment active state, the supporting member moves back and forth on the inner cavity of the casing to change the front - rear position of the supporting member on the inner cavity of the casing, and the adjusting member is relatively limited in forward - backward movement on the long strip - shaped hole.

[0018] The adjusting member is a locking and adjusting member with a locking state and a released - locking state. The locking and adjusting member switches between the locking state and the released - locking state by rotating in the forward and reverse directions;

[0019] When the adjusting member is in the locking state, the supporting member is fixed on the inner cavity of the casing; when the supporting member moves back and forth on the inner cavity of the casing, the adjusting member is in the released - locking state.

[0020] The connecting part includes a connecting hole provided on the support member and forming a rotational connection with the adjusting member. The adjusting member rotates and synchronously drives the support member to move back and forth in the inner cavity of the casing, so as to change the front-back position of the support member on the inner cavity of the casing.

[0021] The adjusting member is an eccentric adjusting member having a pending state and a rotational adjustment state. When the adjusting member is in the pending state, the support member is fixed on the inner cavity of the casing. When the adjusting member is in the rotational adjustment state and acts on the support member, the adjusting member rotates in the forward and reverse directions and drives the support member to move back and forth in the inner cavity of the casing.

[0022] Unlike the locking adjusting member, after the eccentric adjusting member is loosened, there is no need to manually drive the support member to move back and forth in the inner cavity of the casing. The eccentric adjusting member has the characteristic of simple adjustment.

[0023] A bracket is provided on the support member, and the driven wheel is rotatably arranged on the bracket. The driven wheel is rotatably suspended on the top of the support member through the bracket.

[0024] A drawer fixedly connected with the transmission belt is provided on the inner cavity of the casing. The driving wheel is in transmission connection with the driving shaft of the motor. The driving shaft of the motor rotates and drives the driving wheel to rotate. The transmission belt reciprocates between the driving wheel and the driven wheel. The drawer follows the reciprocating movement of the transmission belt to push out or enter the inner cavity of the casing.

[0025] An installation interval for installing the transmission belt and the driven wheel is formed between the adjusting assembly and the drawer up and down. The interval between the drawer and the inner cavity of the casing is reasonably utilized, effectively saving the installation space inside the refrigerator, effectively reducing the volume of the refrigerator, and further reducing the cost.

[0026] The beneficial effects of the present utility model are as follows:

[0027] By adopting the transmission belt structure, no lubricating oil is required, the durability of the refrigerator transmission system is high, and by changing the front-back position of the adjusting assembly on the inner cavity of the casing, the front-back distance between the driving wheel and the driven wheel is adjusted, and then the tightness of the transmission belt is adjusted. The setting of the tensioning hole is cancelled, the installation space inside the refrigerator is saved, the tightness adjustment structure of the transmission belt is simplified, the production cost is reduced, and the enterprise benefit is improved. Description of the Drawings

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the casing and the drawer of an embodiment of the present utility model.

[0029] Figure 2 It is another three-dimensional structural schematic diagram of the casing and the drawer of an embodiment of the present utility model.

[0030] Figure 3 It is a cross-sectional structural schematic diagram of the casing and the drawer of an embodiment of the present utility model.

[0031] Figure 4 ForFigure 3 Enlarged view of part A

[0032] Figure 5 Schematic structural diagram of the adjustment assembly of an embodiment of the present utility model moving in the inner cavity of the housing

[0033] Figure 6 is Figure 5 Enlarged view of part B

[0034] Figure 7 Schematic structural diagram of the cooperation between the adjusting part and the long strip hole of an embodiment of the present utility model Detailed implementation mode

[0035] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments

[0036] Refer to Figures 1-7 , a tightness adjustment structure for a transmission system of a new energy vehicle-mounted refrigerator, including an adjustment assembly 2 arranged on the inner cavity of the housing 1. The adjustment assembly 2 includes a driven wheel 5 drivingly connected to a driving wheel 4 through a transmission belt 3; the adjustment assembly 2 is on the inner cavity of the housing 1 and has an installation and locking state and an adjustment and moving state

[0037] When the adjustment assembly 2 is in the installation and locking state, the driven wheel 5 is fixed on the inner cavity of the housing 1 together with the adjustment assembly 2

[0038] When the adjustment assembly 2 is in the adjustment and moving state, by changing the front and rear positions of the adjustment assembly 2 on the inner cavity of the housing 1, the front and rear distance between the driving wheel 4 and the driven wheel 5 is adjusted, and then the tightness of the transmission belt 3 is adjusted

[0039] In this embodiment, the bottom of the adjustment assembly 2 is in surface sliding contact with the bottom wall of the inner cavity of the housing 1

[0040] An adjusting part 6 for switching between the installation and locking state and the adjustment and moving state of the adjustment assembly 2 is provided between the inner cavity of the housing 1 and the adjustment assembly 2. The inner cavity of the housing 1 and the adjustment assembly 2 are connected through the adjusting part 6

[0041] The adjustment assembly 2 further includes a support part 7 supported on the inner cavity of the housing 1. The driven wheel 5 is rotatably arranged above the support part 7 in a suspended manner

[0042] When the adjustment assembly 2 is in the installation and locking state, the support part 7 is fixed on the inner cavity of the housing 1

[0043] When the adjustment assembly 2 is in the adjustment and moving state, the support part 7 moves back and forth on the inner cavity of the housing 1 to adjust the front and rear distance between the driving wheel 4 and the driven wheel 5

[0044] A connecting part 8 cooperating with the adjusting part 6 is provided between the inner cavity of the housing 1 and the support part 7

[0045] When the support member 7 moves back and forth in the inner cavity of the housing 1, the adjusting member 6 moves back and forth relative to the front and rear limits in the connecting portion 8; alternatively, the adjusting member 6 is positioned and rotated on the connecting portion 8.

[0046] The connecting portion 8 includes a long strip-shaped hole 10 provided on the support member 7 and forming a linear limit moving fit with the adjusting member 6. The length L1 of the long strip-shaped hole 10 is greater than the shaft diameter D1 of the adjusting member 6.

[0047] When the adjustment assembly 2 is in the adjustment active state, the support member 7 moves back and forth in the inner cavity of the housing 1 to change the front and rear position of the support member 7 in the inner cavity of the housing 1, and the adjusting member 6 moves back and forth relative to the front and rear limits on the long strip-shaped hole 10.

[0048] In this embodiment, a locking hole 9 for inserting the adjusting member 6 is provided on the inner cavity of the housing 1; the adjusting member 6 passes through the locking hole 9 and the long strip-shaped hole 10 to connect and cooperate the support member 7 with the bottom wall of the inner cavity of the housing 1.

[0049] In this embodiment, two locking holes 9 arranged at intervals in the front and rear and two long strip-shaped holes 10 arranged at intervals in the front and rear are provided between the housing 1 and the support member 7.

[0050] In this embodiment, by changing the length of the long strip-shaped hole 10, the adjustment stroke of the support member 7 is increased or decreased.

[0051] In this embodiment, a locking block is provided on the outer side of the bottom of the housing 1, and a fixed connection hole corresponding to the locking hole 9 is provided on the locking block. The locking screw is inserted into the fixed connection hole, the locking hole 9 and the long strip-shaped hole 10.

[0052] The adjusting member 6 is a locking adjusting member having a locking state and a released locking state. The locking adjusting member switches between the locking state and the released locking state by rotating in the positive and negative directions; the adjusting member 6 is a locking screw.

[0053] When the adjusting member 6 is in the locking state, the support member 7 is fixed on the inner cavity of the housing 1; when the support member 7 moves back and forth in the inner cavity of the housing 1, the adjusting member 6 is in the released locking state.

[0054] The connecting portion 8 includes a connection hole provided on the support member 7 and forming a rotational connection with the adjusting member 6. The adjusting member 6 rotates and synchronously drives the support member 7 to move back and forth in the inner cavity of the housing 1 to change the front and rear position of the support member 7 in the inner cavity of the housing 1.

[0055] The adjusting member 6 is an eccentric adjusting member having a pending state and a rotational adjustment state. When the adjusting member 6 is in the pending state, the support member 7 is fixed on the inner cavity of the housing 1. When the adjusting member 6 is in the rotational adjustment state and acts on the support member 7, the adjusting member 6 rotates in the positive and negative directions and drives the support member 7 to move back and forth in the inner cavity of the housing 1. The adjusting member 6 is an eccentric adjusting screw or an eccentric adjusting disc.

[0056] A bracket 11 is provided on the support member 7, and the driven wheel 5 is rotatably arranged on the bracket 11. The driven wheel 5 is rotatably and suspended on the top of the support member 7 through the bracket 11.

[0057] In this embodiment, the bracket 11 is fixed to the support member 11 by screws or welding.

[0058] In this embodiment, the driven wheel 5 is rotatably arranged on the bracket 11 through a rotating shaft. The bracket 11 includes two support arms extending along the top of the support member 7. Shaft holes for inserting the rotating shaft are provided on the support arms.

[0059] In this embodiment, an installation interval for installing the transmission belt 3, the bracket 11 and the driven wheel 5 is formed between the support member 7 and the drawer 12 up and down. The interval between the drawer 12 and the inner cavity of the cabinet 1 is reasonably utilized, effectively saving the installation space inside the refrigerator, effectively reducing the volume of the refrigerator, and further reducing the cost.

[0060] In this embodiment, the cabinet 1 is provided with a clearance hole for inserting the transmission belt and communicating with the installation interval.

[0061] A drawer 12 fixedly connected to the transmission belt 3 is provided in the inner cavity of the cabinet 1. The driving wheel 4 is in transmission connection with the driving shaft of the motor 13. The driving shaft of the motor 13 operates to drive the driving wheel 4 to rotate, and the transmission belt 3 reciprocates between the driving wheel 4 and the driven wheel 5.

[0062] Since the motor 13 and the driving wheel 4 are fixedly installed in the refrigerator, only by adjusting the front and rear positions of the support member 7 moving back and forth on the inner cavity of the cabinet 1 can the tightness of the transmission belt 3 be adjusted.

[0063] The above is the preferred solution of the present invention, showing and describing the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension adjustment structure for a drive system of a new energy vehicle-mounted refrigerator, characterized in that: The invention comprises an adjusting assembly (2) arranged on the inner cavity of the housing (1), wherein the adjusting assembly (2) comprises a passive wheel (5) connected to the driving wheel (4) via a transmission belt (3); the adjusting assembly (2) is on the inner cavity of the housing (1) and has an installation locking state and an adjustment active state; The regulating assembly (2) is in a mounted locked state, and the passive wheel (5) is fixed to the inner cavity of the housing (1) along with the regulating assembly (2); The adjustment assembly (2) is in an adjustment active state, and by changing the front-back position of the adjustment assembly (2) on the inner cavity of the housing (1), the front-back spacing between the driving wheel (4) and the driven wheel (5) is adjusted, thereby adjusting the tightness of the transmission belt (3).

2. The tightness adjustment structure of the drive system of the new energy vehicle-mounted refrigerator according to claim 1, wherein: An adjusting member (6) for switching the adjusting assembly (2) between an installation locking state and an adjustment active state is provided between the inner cavity of the housing (1) and the adjusting assembly (2). The inner cavity of the housing (1) and the adjusting assembly (2) are connected via the adjusting member (6).

3. The tightness adjustment structure of the new energy vehicle-mounted refrigerator drive system according to claim 1, characterized in that: The regulating assembly (2) further includes a supporting member (7) supported on the inner cavity of the housing (1), and the driven wheel (5) is arranged on the top of the supporting member (7) for suspended rotation; The adjustment assembly (2) is in a mounted locked state, and the support member (7) is fixed to the inner cavity of the housing (1); The adjustment assembly (2) is in an adjustment active state, and the support member (7) moves forward and backward on the inner cavity of the housing (1) to adjust the front-to-back spacing between the driving wheel (4) and the driven wheel (5).

4. The tightness adjustment structure of the transmission system of the new energy vehicle-mounted refrigerator according to claim 3, characterized in that: A connecting portion (8) that cooperates with the adjusting member (6) is provided between the inner cavity of the housing (1) and the supporting member (7); When the supporting member (7) moves forward and backward on the inner cavity of the housing (1), the adjusting member (6) moves relatively forward and backward on the connecting portion (8); or, the adjusting member (6) is positioned and rotated on the connecting portion (8).

5. The tightness adjustment structure of the transmission system of the new energy vehicle-mounted refrigerator according to claim 4, characterized in that: The connecting portion (8) includes a strip-shaped long hole (10) provided on the supporting member (7) and forming a linear limiting movable fit with the adjusting member (6), wherein the length L1 of the strip-shaped long hole (10) is greater than the shaft diameter D1 of the adjusting member (6); The adjustment assembly (2) is in an adjustment active state, the support member (7) moves forward and backward on the inner cavity of the housing (1) to change the front and rear position of the support member (7) on the inner cavity of the housing (1), and the adjustment member (6) moves relative to the front and rear limit on the strip long hole (10).

6. The tightness adjustment structure of the transmission system of the new energy vehicle-mounted refrigerator according to claim 5, characterized in that: The adjusting member (6) is a locking adjusting member having a locking state and a releasing locking state, and the locking adjusting member switches between the locking state and the releasing locking state by rotating in forward and reverse directions; The adjusting member (6) is in a locked state, and the supporting member (7) is fixed on the inner cavity of the housing (1); the supporting member (7) moves back and forth on the inner cavity of the housing (1), and the adjusting member (6) is in a released locked state.

7. The tightness adjustment structure of the transmission system of the new energy vehicle-mounted refrigerator according to claim 4, characterized in that: The connecting portion (8) includes a connecting hole provided on the supporting member (7) and forming a rotational connection with the adjusting member (6); the adjusting member (6) rotates and synchronously drives the supporting member (7) to move forward and backward on the inner cavity of the housing (1), thereby changing the front and rear position of the supporting member (7) on the inner cavity of the housing (1).

8. The tightness adjustment structure of the drive system of the new energy vehicle-mounted refrigerator according to claim 7, characterized in that: The adjusting member (6) is an eccentric adjusting member with a pending state and a rotational adjustment state. When the adjusting member (6) is in the pending state, the supporting member (7) is fixed on the inner cavity of the housing (1). When the adjusting member (6) is in the rotational adjustment state, it acts on the supporting member (7). The adjusting member (6) rotates in both forward and reverse directions and drives the supporting member (7) to move back and forth on the inner cavity of the housing (1).

9. The tightness adjustment structure of the drive system of the new energy vehicle-mounted refrigerator according to claim 3, characterized in that: A bracket (11) is provided on the supporting member (7), and the driven wheel (5) is rotatably arranged on the bracket (11). The driven wheel (5) is rotatably suspended on the top of the supporting member (7) through the bracket (11).

10. The tightness adjustment structure of the transmission system of the new energy vehicle-mounted refrigerator according to claim 1, wherein: A drawer (12) fixedly connected to the transmission belt (3) is provided on the inner cavity of the housing (1). The driving wheel (4) is in transmission connection with the driving shaft of the motor (13). The driving shaft of the motor (13) operates to drive the driving wheel (4) to rotate, and the transmission belt (3) reciprocates between the driving wheel (4) and the driven wheel (5). An installation interval for installing the transmission belt (3) and the driven wheel (5) is formed between the adjusting assembly (2) and the drawer (12) vertically.

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