Oiling-free double door seal structure for preventing door seal from being pinned

Abstract

The utility model discloses an oiling-free double door seal structure capable of preventing door seal pinning, which belongs to the technical field of refrigerator door seals and comprises a door opening side door seal and a hinge side door seal. The door opening side door seal comprises a magnetic strip bag, an inner air bag, an outer air bag, a supporting air bag, a clamping cavity and an auxiliary air bag. The hinge side door seal is additionally provided with a transverse supporting rib on the basis of the door opening side door seal, one end of the transverse supporting rib is connected with the outer air bag, and the other end of the transverse supporting rib is connected with the auxiliary air bag. According to the utility model, the material formula is improved, the oil coating process is omitted, the friction coefficient of the door seal is reduced, the cost and the labor intensity are reduced, and the efficiency is improved; the door seal structure is optimized to avoid the door seal pinning phenomenon, the door opening side door seal is installed on the door opening side of the door body, the hinge side door seals are installed on the other three sides, and the double design ensures that the door seals block air exchange inside and outside the box, cold energy loss is reduced, door body closing impact is buffered, and operation vibration noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to refrigerator door seal technical field especially relates to a prevent other door seal's oil-free double door seal structure. BACKGROUND

[0002] The refrigerator door seal is the core component of the refrigerator sealing system, and its core function is to tightly adhere to the cabinet through elastic deformation to block the exchange of air inside and outside, thereby maintaining the temperature stability of the refrigerator / freezer room and reducing energy consumption. However, in long-term use, the door seal faces the following technical challenges:

[0003] ①Friction and wear: frequent opening and closing of the door causes the sealing strip to directly rub against the metal / plastic surface of the cabinet, which may accelerate material wear and damage the sealing performance.

[0004] ②Other door seal phenomenon: when the door is opened and closed, the distance between the pivot side of the door and the cabinet will further decrease, thereby pressing the door seal strip, which is prone to interfere with the cabinet and cause the other door seal phenomenon. The other door seal phenomenon directly affects the sealing performance of the refrigerator, causing the leakage of cold air inside the cabinet and the invasion of hot air, reducing the refrigeration effect, increasing energy consumption, aggravating condensation and frosting in the refrigerator, and breeding mold in a humid environment. In extreme cases, it may even stick to the cabinet.

[0005] Currently, the main way to solve the other door seal problem is to apply lubricating oil (silicone oil) to the hinge side of the door seal when it is assembled into the refrigerator to improve the lubrication performance of the door seal. Industry test data show that the sealing life of the silicone oil-coated door seal can be extended by 3-5 years, and the closing force can be reduced by 20%-30% (as tested by IEC 62552 standard). During the silicone oil coating operation, it needs to be done manually or by coating equipment, which increases the labor intensity of workers and reduces the efficiency of the coating operation. This seriously affects the production efficiency of the refrigerator.

[0006] The existing door seal is formed by welding horizontal and vertical door seal strips into a frame shape, and the four sides are mostly of the same cross-sectional structure. However, due to design and manufacturing process errors of the refrigerator door and cabinet, the door seal does not cooperate well with the door and cabinet during actual production and use, resulting in poor sealing performance. Therefore, in order to meet the assembly requirements of the refrigerator, different door seal structures need to be designed to adapt to the different designs of the four sides of the refrigerator door and cabinet to ensure the sealing performance of the refrigerator. SUMMARY

[0007] The utility model aims at providing a kind of prevent other door seal's oil-free double door seal structure, solve the existing door seal four sides mostly same cross-sectional structure, actual production and use process, door seal and door and cabinet cooperation are not good and lead to poor sealing performance, use the way of coating lubricating oil to improve the lubrication performance of door seal, cost is high, worker's labor intensity increases, the efficiency of coating operation is low, seriously affect the production efficiency of refrigerator problem.

[0008] To solve the above technical problems, the utility model discloses the following technical scheme:

[0009] The utility model discloses a prevent other door seal's free -of -painting double -door seal structure, including the door seal of opening door side and the door seal of hinge side,

[0010] The door seal of opening door side includes the magnetic stripe sac, the right side of magnetic stripe sac is provided with the inner air bag, the lower part of magnetic stripe sac is provided with the outer air bag, the lower part of outer air bag is provided with the support air bag, the lower part of support air bag and inner air bag is provided with the carding chamber, the lower right corner position of inner air bag is provided with the auxiliary air bag,

[0011] The door seal of hinge side increases the transverse support rib on the basis of the door seal of opening door side, one end of transverse support rib is connected with outer air bag, the other end of transverse support rib is connected with auxiliary air bag.

[0012] Further, the left side of the outer air bag is provided with an outer air bag connecting rib, the outer air bag connecting rib includes a first transverse rib and a second transverse rib, one end of the first transverse rib is connected with the magnetic stripe sac, the other end of the first transverse rib is connected with the second transverse rib, the other end of the second transverse rib is connected with the support air bag, and the first transverse rib and the second transverse rib form an acute angle.

[0013] Still further, the right side of the outer air bag is provided with an internal support rib, and the left end of the transverse support rib is connected with the internal support rib.

[0014] Still further, the left side of the auxiliary air bag is provided with a folding rib, and the right end of the transverse support rib is connected with the folding point of the folding rib.

[0015] Still further, a first auxiliary fin is arranged on the right side wall of the inner air bag.

[0016] Still further, a reverse fin is arranged on the bottom side wall of the carding chamber.

[0017] Still further, a door seal groove sealing fin is arranged on the bottom of the carding chamber.

[0018] Still further, a cover lining long fin is arranged on the left side of the support air bag.

[0019] Still further, a second auxiliary fin is arranged on the left side of the magnetic stripe sac of the door seal of opening door side.

[0020] Compared with the prior art, the utility model has the beneficial technical effects that:

[0021] The utility model discloses a first is through improving material formula, save the oiling procedure, reduce the door seal friction coefficient, reduce cost and labor intensity, improve efficiency, second is through optimizing the door seal structure to avoid the door seal phenomenon, install the door opening side door seal on the door opening side of door body, install the hinge side door seal on other three sides, double design guarantees the door seal to block the air exchange in the box, reduces the cold quantity loss, the buffer door body closing impact, reduces the running vibration noise. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model makes further explanation in combination with the drawings.

[0023] Figure 1 It is the transverse section structure schematic diagram of the utility model's door opening side door seal.

[0024] Figure 2 It is the transverse section structure schematic diagram of the utility model's hinge side door seal.

[0025] Fig. 1, magnetic stripe capsule; 2, inner air bag; 3, outer air bag; 4, support air bag; 5, auxiliary air bag; 6, horizontal support rib; 7, outer air bag connecting rib; 7-1, first horizontal rib; 7-2, second horizontal rib; 8, internal support rib; 9, first auxiliary fin edge; 10, clamping chamber; 11, inverted fin; 12, door seal groove sealing fin; 13, cover lining long fin; 14, second auxiliary fin edge; 15, folded rib. DETAILED DESCRIPTION

[0026] As Figures 1-2 The utility model discloses a prevent the door seal of double door seal structure of exempting from oiling, including door opening side door seal and hinge side door seal, the door opening side door seal is installed in the door opening side of door body, the hinge side door seal is installed in other three edges of door body.

[0027] As Figure 1 The door opening side door seal includes magnetic stripe capsule 1, the right side of magnetic stripe capsule 1 is connected with inner air bag 2, the lower part of magnetic stripe capsule 1 is connected with outer air bag 3, the lower part of outer air bag 3 is connected with support air bag 4, the lower part of support air bag 4 and inner air bag 2 is connected with clamping chamber 10, the lower right corner position of inner air bag 2 is connected with auxiliary air bag 5.

[0028] The left side of outer air bag 3 is provided with outer air bag connecting rib 7, outer air bag connecting rib 7 includes first horizontal rib 7-1 and second horizontal rib 7-2, one end of first horizontal rib 7-1 is connected with magnetic stripe capsule 1, the other end of first horizontal rib 7-1 is connected with second horizontal rib 7-2, the other end of second horizontal rib 7-2 is connected with support air bag 4, the included angle formed by first horizontal rib 7-1 and second horizontal rib 7-2 is acute angle, enhances the ability of door seal to resist the door seal, the right side of outer air bag 3 is provided with internal support rib 8.

[0029] The right side wall of the inner airbag 2 is connected to a first auxiliary wing 9.

[0030] Two inverted wings 11 are connected to the bottom side wall of the card-mounting chamber 10.

[0031] The bottom of the card-mounted chamber 10 is connected to a door sealing groove sealing wing 12.

[0032] The left side of the support airbag 4 is connected to a cover wing 13.

[0033] The left side of the magnetic strip bag 1 is connected to a second auxiliary wing 14. The second auxiliary wing 14 on the opening side can cover the steel plate area of ​​the refrigerator upright beam, reducing the contact area between the steel plate and the air, thereby reducing the heat transfer effect. The second auxiliary wing 14 is removed on the hinge side to prevent the second auxiliary wing from interfering with the cabinet body and the door seal when the door is closed.

[0034] The horizontal support rib 6 on the opening side of the door seal is removed, allowing the internal support rib 8 to have sufficient extension distance, increasing the door seal's extension capacity, and compensating for the gap between the door and the housing caused by processing errors.

[0035] like Figure 2 As shown, the hinge side door seal is supplemented with a horizontal support rib 6 on the basis of the opening side door seal. One end of the horizontal support rib 6 is connected to the outer airbag 3, and the other end of the horizontal support rib 6 is connected to the auxiliary airbag 5. Specifically, the left end of the horizontal support rib 6 is connected to the inner support rib 8, and a folding rib 15 is provided on the left side of the auxiliary airbag 5. The right end of the horizontal support rib 6 is connected to the folding point of the folding rib 15.

[0036] By designing lateral support ribs, the lateral support of the door seal is enhanced, thereby improving the door seal's resistance to damage.

[0037] The oil-free double door seal structure for preventing door seal misalignment described in this utility model uses a novel self-lubricating rubber material for both the door opening side seal and the hinge side seal. This material is made by adding a modifying agent to materials such as PVC, rubber, or TPE elastomers to increase the material's own lubricity, reduce the surface friction coefficient, and achieve self-lubrication. Therefore, it does not require oiling to increase lubrication, thus achieving oil-free operation.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A double door seal structure that prevents mis-sealing and requires no oiling, characterized in that: The door seal comprises a door opening side door seal and a hinge side door seal. The door opening side door seal comprises a magnetic strip bag (1), a right side of the magnetic strip bag (1) is provided with an inner air bag (2), a lower part of the magnetic strip bag (1) is provided with an outer air bag (3), a lower part of the outer air bag (3) is provided with a supporting air bag (4), the supporting air bag (4) and the lower part of the inner air bag (2) are provided with a clamping cavity (10), a lower right corner of the inner air bag (2) is provided with an auxiliary air bag (5). The hinge side door seal is increased with a transverse supporting rib (6) on the basis of the door opening side door seal, one end of the transverse supporting rib (6) is connected with the outer air bag (3), the other end of the transverse supporting rib (6) is connected with the auxiliary air bag (5).

2. The oil-free double door seal structure for preventing the side door from being sealed according to claim 1, characterized in that: A left side of the outer air bag (3) is provided with an outer air bag connecting rib (7), the outer air bag connecting rib (7) comprises a first transverse rib (7-1) and a second transverse rib (7-2), one end of the first transverse rib (7-1) is connected with the magnetic strip bag (1), the other end of the first transverse rib (7-1) is connected with the second transverse rib (7-2), the other end of the second transverse rib (7-2) is connected with the supporting air bag (4), an included angle formed by the first transverse rib (7-1) and the second transverse rib (7-2) is an acute angle.

3. The oil-free double door seal structure preventing the door seal from being opened according to claim 1, characterized in that: A right side of the outer air bag (3) is provided with an internal supporting rib (8), a left end of the transverse supporting rib (6) is connected with the internal supporting rib (8).

4. The oil-free double door seal structure for preventing the side door from being sealed according to claim 3, characterized in that: A left side of the auxiliary air bag (5) is provided with a folding rib (15), a right end of the transverse supporting rib (6) is connected with a folding point of the folding rib (15).

5. The oil-free double door seal structure preventing the door seal from being opened according to claim 1, wherein: A right side wall of the inner air bag (2) is provided with a first auxiliary wing edge (9).

6. The oil-free double door seal structure preventing the other door from being sealed according to claim 1, wherein: A bottom side wall of the clamping cavity (10) is provided with an inverted wing (11).

7. The oil-free double door seal structure preventing the other door from being sealed according to claim 1, characterized in that: A bottom of the clamping cavity (10) is provided with a door seal groove sealing wing (12).

8. The oil-free double door seal structure preventing the side door seal according to claim 1, characterized in that: A left side of the supporting air bag (4) is provided with a cover lining long wing (13).

9. The oil-less double door seal structure preventing the side door seal according to claim 1, characterized in that: A left side of the magnetic strip bag (1) of the door opening side door seal is provided with a second auxiliary wing edge (14).

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